阅读说明：本技术 一种焊带弯曲度测量装置及测量方法 (Welding strip bending degree measuring device and measuring method ) 是由 侯运来 冯春暖 吕俊 于 2021-06-17 设计创作，主要内容包括：本发明公开一种焊带弯曲度测量装置及测量方法,涉及光伏焊带技术领域,以提高焊带弯曲度的测量精度。所述焊带弯曲度测量装置包括：测量台、牵引机构、第一压紧件、切割机构、图像采集器以及终端设备。测量台具有切割区域、测量区域以及位于切割区域和测量区域之间的第一压紧区域。牵引机构设置在测量台的一侧。第一压紧件设在第一压紧区域,第一压紧件用于将焊带压在第一压紧区域。切割机构设在切割区域,切割机构用于在切割区域内切割焊带。图像采集器设在测量区域,图像采集器用于在测量区域内采集焊带的图像信息。终端设备与图像采集器通信连接,终端设备根据图像信息确定焊带的弯曲度。本发明提供的焊带弯曲度测量装置用于测量焊带弯曲度。(The invention discloses a device and a method for measuring the flexibility of a solder strip, and relates to the technical field of photovoltaic solder strips, so as to improve the measurement precision of the flexibility of the solder strip. The welding strip bending degree measuring device comprises: measuring table, drive mechanism, first compressing tightly piece, cutting mechanism, image collector and terminal equipment. The measuring table has a cutting region, a measuring region, and a first pressing region located between the cutting region and the measuring region. The traction mechanism is arranged on one side of the measuring table. The first pressing piece is arranged in the first pressing area and used for pressing the welding strip in the first pressing area. The cutting mechanism is arranged in the cutting area and is used for cutting the welding strip in the cutting area. The image collector is arranged in the measuring area and used for collecting image information of the welding strip in the measuring area. And the terminal equipment is in communication connection with the image collector, and the curvature of the welding strip is determined by the terminal equipment according to the image information. The welding strip bending degree measuring device provided by the invention is used for measuring the bending degree of the welding strip.)

1. A weld strip bow measurement device, comprising: the device comprises a measuring table, a traction mechanism, a first pressing piece, a cutting mechanism, an image collector and terminal equipment;

the measuring table is provided with a cutting area, a measuring area and a first compaction area positioned between the cutting area and the measuring area;

the traction mechanism is arranged on one side of the measuring table, and the welding strip is sequentially pulled to pass through the cutting area, the first pressing area and the measuring area through the traction mechanism;

the first pressing piece is arranged in the first pressing area and used for pressing the welding strip on the first pressing area;

the cutting mechanism is arranged in the cutting area and is used for cutting the welding strip in the cutting area;

the image collector is arranged in the measuring area and is used for collecting image information of the welding strip in the measuring area;

the terminal equipment is in communication connection with the image collector, and the terminal equipment determines the curvature of the welding strip according to the image information.

2. The welding strip bending degree measuring device according to claim 1, wherein the image collector is used for moving in the extending direction of the welding strip in the measuring area and collecting image information of a part of the welding strip, which is located in the measuring area; wherein the content of the first and second substances,

the welding strip bending degree measuring device further comprises a first driving mechanism, and the first driving mechanism is used for driving the image collector to move along the extending direction of the welding strip; and/or the presence of a gas in the gas,

the welding strip bending degree measuring device further comprises a second driving mechanism, and the second driving mechanism is used for driving the image collector to be close to or far away from the welding strip.

3. The solder strip bending measurement device according to claim 1, wherein the measurement table is provided with scales distributed along the extending direction of the solder strip at the position of the measurement area.

4. The weld strip bow measuring device according to claim 1, wherein the pulling mechanism comprises a body and a pulling head in power connection with the body, and the pulling head can reciprocate linearly in the distribution direction of the cutting region, the first pressing region and the measuring region.

5. The welding strip bending measuring device according to claim 4, further comprising a position sensor arranged on one side of the measuring table, wherein the position sensor is located at one end of the measuring area, which is far away from the first pressing area, and is used for detecting position information of the drawing head; the position sensor, the traction mechanism and the first pressing piece are respectively communicated with the terminal equipment;

and the terminal equipment determines that the traction head is positioned at one end of the measuring area, which is far away from the first compression area, according to the position information, and controls the first compression piece to compress the welding strip in the first compression area.

6. The weld strip bow measuring device according to claim 5, further comprising a pressure sensor in communication with the terminal device;

the terminal equipment further determines that the welding strip is pressed on the first pressing area according to the pressure information, and controls the cutting mechanism to cut the welding strip.

7. The weld strip bow measuring device of claim 1, wherein the measuring table further has a second pinched region, the measuring region being located between the first pinched region and the second pinched region;

the welding strip bending degree measuring device further comprises a second pressing piece arranged in the second pressing area, and the second pressing piece is used for pressing the welding strip in the second pressing area.

8. A weld strip bow measuring device according to any one of claims 1 to 7, further comprising:

the welding strip unwinding device is used for unwinding the welding strip;

and the tension simulation mechanism is used for simulating tension of the unreeled welding strip.

9. Weld strip bow measuring device according to claim 8, wherein the measuring table has a third compacted region, the cutting region being located between the first and third compacted regions; the welding strip bending degree measuring device further comprises a third pressing piece arranged in the third pressing area, and the third pressing piece is used for pressing the welding strip in the third pressing area;

the tension simulation mechanism is positioned on one side of the third pressing area, which is far away from the cutting area.

10. The weld strip bow measuring device according to claim 8, wherein the tension simulating mechanism comprises a rotating mechanism that provides a counter-friction force to the weld strip; wherein the content of the first and second substances,

the rotating mechanism comprises a rolling type conveying mechanism, the conveying direction of the rolling type conveying mechanism is opposite to the traction direction of the traction mechanism, and the conveying force of the rolling type conveying mechanism is smaller than the traction force of the traction mechanism.

11. The weld strip bow measuring device according to claim 8, wherein the tension simulating mechanism comprises a movable pulley mechanism for cooperating with the weld strip; wherein the content of the first and second substances,

the tension simulation mechanism further comprises at least one load piece, and each load piece is detachably connected with the movable pulley mechanism.

12. The welding strip bending measuring device according to any one of claims 1 to 7, wherein the cutting mechanism comprises a first cutting head and a second cutting head matched with the first cutting head, and the first cutting head is arranged at the position, located in the cutting area, of the measuring table; the second cutting head is a liftable cutting head.

13. A method for measuring the bending degree of a welding strip is characterized in that a device for measuring the bending degree of the welding strip according to any one of claims 1 to 12 is applied; the method for measuring the bending degree of the welding strip comprises the following steps:

s100, controlling the traction mechanism to pull the welding strip to sequentially pass through the cutting area, the first pressing area and the measuring area;

step S200, controlling the traction mechanism to fix the end of the welding strip; controlling the first pressing piece to press the part of the welding strip, which is positioned in the first pressing area, on the first pressing area;

step S300, controlling the cutting mechanism to cut the welding strip in the cutting area, so that the welding strip in the measuring area is in a loose state;

step S400, controlling the image collector to collect image information of the part of the welding strip, which is located in the measuring area, and sending the image information to terminal equipment; and the terminal equipment determines the bending degree of the welding strip according to the image information.

14. The method for measuring the bending degree of the welding strip according to claim 13, wherein the terminal device determines the maximum distance and the minimum distance between the part of the welding strip located in the measuring area and the measuring reference line according to the image information, and determines the bending degree of the welding strip according to the maximum distance, the minimum distance and the preset length of the welding strip;

the measuring datum line is parallel to the extending direction of the welding strip, and the measuring datum line and the part of the welding strip, which is located in the measuring area, are located on the same horizontal plane.

15. Method of measuring bending of a solder strip according to claim 14, wherein the bending β of the solder strip satisfies: β ═ S1-S2)/lx 100%, S1 is the maximum distance between the part of the solder strip located in the measurement region and the measurement reference line; s2 is the minimum distance between the part of the welding strip located in the measuring area and the measuring datum line; l is the preset length of the welding strip; and/or the presence of a gas in the gas,

the preset length of the welding strip is the span of the welding strip in the measuring area.

16. The method of measuring bending of a solder strip according to claim 13, wherein the step S300 includes:

step S310, controlling the cutting mechanism to cut the welding strip in the cutting area;

step S320, controlling the first pressing member and the traction mechanism to separate from the welding strip, so that the welding strip is in a loose state.

17. The method for measuring the bending of the solder strip according to claim 13, wherein when the device for measuring the bending of the solder strip is the device for measuring the bending of the solder strip according to claim 7, after the step S100 and before the step S300, the method for measuring the bending of the solder strip further comprises: controlling the second pressing piece to press the welding strip on the second pressing area;

the step S300 includes:

step S310, controlling the cutting mechanism to cut the welding strip in the cutting area;

step S320, controlling the first pressing piece, the traction mechanism, and the second pressing piece to separate from the welding strip, so that the welding strip is in a loose state.

18. The method for measuring the bending of the solder strip according to claim 13, wherein when the device for measuring the bending of the solder strip is the device for measuring the bending of the solder strip according to claim 8, before the step S200, the method for measuring the bending of the solder strip further comprises:

and the tensile force simulation mechanism is utilized to simulate the tensile force of the welding strip unreeled by the welding strip unreeling device.

19. The method for measuring the bending degree of the welding strip according to claim 18, wherein the step of performing tension simulation on the welding strip unreeled by the welding strip unreeling device by using a tension simulation mechanism comprises the following steps:

providing a reverse friction force for the welding strip by using a rotating mechanism, wherein the reverse friction force is smaller than the traction force of the traction mechanism; and/or the presence of a gas in the gas,

providing tension for the welding strip by at least utilizing a movable pulley mechanism; or the like, or, alternatively,

and providing tension for the welding strip by using a movable pulley mechanism and at least one loading piece.

Technical Field

The invention relates to the technical field of photovoltaic solder strips, in particular to a solder strip bending degree measuring device and method.

Background

The degree of curvature of the solder ribbon is a particularly important parameter in ensuring the linear placement of interconnecting solder ribbons during series soldering. When the bending degree of the welding strip is too large, the series welding machine is disturbed by unnecessary downtime, the production efficiency of the welding process is affected, in addition, bad welding spots can be caused, the false welding phenomenon of the false welding is caused, and the rejection rate is increased. Therefore, the bending of the solder strip needs to be measured before the solder strip is used.

In the prior art, a solder strip is usually cut, the solder strip is manually stretched, the solder strip is placed on a ruler along the extension direction of the ruler, a plurality of test points are randomly selected by taking the ruler as a reference, the distance between the solder strip and the ruler is manually read at the test points by using a magnifying glass or a microscope, the maximum value and the minimum value of the measured data are selected, and therefore the curvature of the solder strip is calculated. However, the method for randomly selecting the test points has low accuracy, the error of manually reading the measured data is large, and the tensile force is different when the solder strip is manually stretched each time, so that the elongation of the solder strip is different, and the measured bending precision of the solder strip is low.

Disclosure of Invention

The invention aims to provide a device and a method for measuring the bending degree of a welding strip so as to improve the measurement precision of the bending degree of the welding strip.

In a first aspect, the invention provides a weld strip bow measurement device. This weld area crookedness measuring device includes: measuring table, drive mechanism, first compressing tightly piece, cutting mechanism, image collector and terminal equipment. The measuring table has a cutting region, a measuring region, and a first pressing region located between the cutting region and the measuring region. The traction mechanism is arranged on one side of the measuring table, and the welding strip is sequentially pulled to pass through the cutting area, the first pressing area and the measuring area through the traction mechanism. The first pressing piece is arranged in the first pressing area and used for pressing the welding strip in the first pressing area. The cutting mechanism is arranged in the cutting area and is used for cutting the welding strip in the cutting area. The image collector is arranged in the measuring area and used for collecting image information of the welding strip in the measuring area. And the terminal equipment is in communication connection with the image collector, and the curvature of the welding strip is determined by the terminal equipment according to the image information.

Adopt under the condition of above-mentioned technical scheme, weld and take crookedness measuring device to include: measuring table, drive mechanism, first compressing tightly piece, cutting mechanism, image collector and terminal equipment. The measuring table is provided with a cutting area, a measuring area and a first pressing area located between the cutting area and the measuring area, and the traction mechanism is arranged on one side of the measuring table. Based on this, when measuring the welding strip crookedness, the welding strip is drawn through cutting area, first compress tightly the region and measure the region via the drive mechanism in proper order. The welding strip is pulled through the traction mechanism, and compared with a mode of manually stretching the welding strip, the traction force of the traction mechanism is easy to control, so that the pulling force applied to the welding strip is easy to control, the elongation of the welding strip is controlled, and the precision of the measured bending degree is improved.

When the welding strip is pulled to one end, far away from the first compression area, of the measuring area, the end of the welding strip can be fixed through the traction mechanism, the first compression piece presses the part, located in the first compression area, of the welding strip in the first compression area, and therefore the welding strip is fixed. Next, the solder ribbon in the cutting area is cut by the cutting mechanism. Based on this, when cutting mechanism was kept away from the one end cutting welding strip of drive mechanism at first pressing member, the welding strip that is cut was fixed by first pressing member and drive mechanism to reduce the range of kick-backing after being cut in the welding strip of the tight state, reduce because of the influence of cutting the percentage elongation of welding strip to welding strip, with the precision of improvement measuring crookedness.

Finally, the first pressing piece and the traction mechanism are separated from the cut welding strip respectively, so that the cut welding strip is in a loose state. And an image collector is used for collecting image information of the part of the cut welding strip, which is positioned in the measuring area, and the terminal equipment determines the curvature of the welding strip according to the image information. Based on this, the image collector can gather the image information of each part of the position that the solder strip is located in the measurement area, and the mode of selecting the test point at random is compared, and the degree of accuracy is high. And the terminal equipment is used for determining the curvature of the welding strip according to the image information, and the obtained data is more accurate compared with the manual reading data, so that the precision of the measured curvature is improved.

In a possible implementation manner, the image collector is used for moving in the extending direction of the welding strip in the measuring area and collecting the image information of the part of the welding strip located in the measuring area. The welding strip bending degree measuring device further comprises a first driving mechanism, and the first driving mechanism is used for driving the image collector to move along the extending direction of the welding strip.

Under the condition of adopting above-mentioned technical scheme, image collector is used for gathering the image information of the position that the solder strip is located the measurement area along the extending direction of solder strip in the measurement area to the convenience is all gathered the image information of the solder strip along the extending direction of solder strip in the measurement area.

In a possible implementation manner, the welding strip bending degree measuring device further comprises a second driving mechanism, and the second driving mechanism is used for driving the image collector to be close to or far away from the welding strip.

Under the condition of adopting above-mentioned technical scheme, second actuating mechanism is used for driving image collector and is close to or keeps away from and welds the area, and when the image information that welds the area needs to be gathered, second actuating mechanism drive image collector is close to and welds the area for the image information that image collector gathered is more accurate. When the welding strip curvature measuring device does not need to collect image information of the welding strip, the second driving mechanism drives the image collector to be far away from the welding strip, and the image collector is prevented from influencing the work of the traction mechanism or other parts.

In a possible embodiment, the measuring table has graduations in the measuring area, which are distributed in the direction of extent of the solder strip.

Under the condition of adopting above-mentioned technical scheme, the position that the measuring table is located measuring area has the scale that distributes along the extending direction of welding the area, can be fast, audio-visually obtain through the scale and weld the length that the area is located measuring area to it is crooked to make things convenient for the calculation to weld. And, can mark the distance between each position of welding strip and the measurement datum line according to different scale positions.

In a possible implementation manner, the traction mechanism comprises a machine body and a traction head in power connection with the machine body, and the traction head can do linear reciprocating motion along the distribution directions of the cutting area, the first pressing area and the measuring area.

In a possible implementation manner, the welding strip bending degree measuring device further comprises a position sensor arranged on one side of the measuring table, and the position sensor is located at one end, away from the first compression area, of the measuring area and used for detecting position information of the traction head. And the position sensor, the traction mechanism and the first pressing piece are respectively communicated with the terminal equipment.

The terminal equipment determines that the traction head is located at one end, far away from the first compression area, of the measurement area according to the position information, and controls the first compression piece to compress the welding strip in the first compression area.

Under the condition of adopting above-mentioned technical scheme, position sensor, drive mechanism and first piece of compressing tightly communicate with terminal equipment respectively. The terminal equipment confirms that the traction mechanism is located under the condition that the measuring area is far away from the one end of the first pressing area according to the position information of the traction head, controls the first pressing piece to press the welding strip at the first pressing area, so that the pressing welding strip process is controlled by the terminal equipment, manual participation is not needed, the labor cost is saved, the automation degree of the welding strip curvature measuring device is improved, and the detection efficiency is improved.

In a possible implementation manner, the welding strip bending degree measuring device further comprises a pressure sensor which is communicated with the terminal equipment. The pressure sensor is arranged in the first pressing area and used for sensing pressure information of the first pressing area. The terminal equipment also determines that the welding strip is pressed in the first pressing area according to the pressure information, and controls the cutting mechanism to cut the welding strip.

Under the condition of adopting above-mentioned technical scheme, terminal equipment and cutting mechanism communication, pressure sensor are used for responding to the first pressure information that compresses tightly the region, and terminal equipment confirms according to pressure information that the area is pressed under the first condition that compresses tightly, controls the welding area in the cutting mechanism cutting region for the area process is welded by terminal equipment control in the cutting, need not artifical the participation, practices thrift the cost of labor, and improves and welds the degree of automation of taking crookedness measuring device, improves detection efficiency.

In a possible embodiment, the measuring table also has a second pressing area, and the measuring area is located between the first pressing area and the second pressing area. The welding strip bending degree measuring device further comprises a second pressing piece arranged in the second pressing area, and the second pressing piece is used for pressing the welding strip in the second pressing area.

Under the condition of adopting the technical scheme, the measuring table is provided with a second pressing area, and the measuring area is positioned between the first pressing area and the second pressing area. When the welding strip is cut, the welding strip is sequentially pulled to pass through a cutting area, a first pressing area, a measuring area and a second pressing area through a traction mechanism, the second pressing piece presses the welding strip at the second pressing area, so that when the welding strip is cut, one end of the welding strip is fixed by the first pressing piece, the other end of the welding strip is fixed by the second pressing piece, and the state of the welding strip after being cut is stable. And the one end that the first piece that compresses tightly was kept away from in the area that welds is fixed by the second piece that compresses tightly, welds the area in-process at the cutting, need not the fixed area that welds of drive mechanism for drive mechanism uses more nimble, convenience.

In a possible implementation manner, the welding strip bending degree measuring device further comprises a welding strip unreeling device and a pulling force simulation mechanism. The welding strip unwinding device is used for unwinding the welding strip. The tension simulation mechanism is used for carrying out tension simulation on the unreeled welding strip.

Under the condition of adopting above-mentioned technical scheme, pulling force simulation mechanism is used for carrying out the pulling force simulation to the area that welds after unreeling, and the pulling force that the messenger welded the area and received when welding the area is the same to the state before the welding is welded in the simulation, the percentage elongation that makes the area that welds is the same with the percentage elongation that welds the area and welds before welding, makes the measured crookedness for welding the crookedness of taking the practical application in-process, makes the measured crookedness more accurate.

In one possible implementation, the measuring table has a third pressing area, and the cutting area is located between the first pressing area and the third pressing area. The welding strip bending degree measuring device further comprises a third pressing piece arranged in a third pressing area, and the third pressing piece is used for pressing the welding strip in the third pressing area. The tension simulation mechanism is positioned on one side of the third pressing area far away from the cutting area.

Under the condition of adopting above-mentioned technical scheme, the cutting region is located first compress tightly between the region and the third and compresses tightly the region, and the third compresses tightly the piece and is used for pressing the solder strip at the third and compresses tightly the region, and pulling force simulation mechanism is located the third and compresses tightly one side that the region kept away from the cutting region. Based on this, when cutting the solder strip, the third pressing member presses the portion of the solder strip located in the third pressing area against the third pressing area. After the cutting mechanism cuts the welding strip, the third pressing piece presses the end, away from the first pressing area, of the welding strip in the cutting area in the third pressing area, the situation that the welding strip is moved out of the measuring table by the tension simulation mechanism is avoided, and therefore when the next measurement is conducted, the traction mechanism is connected with the end, away from the first pressing area, of the welding strip in the cutting area.

In a possible implementation manner, the tension simulation mechanism comprises a rotating mechanism, and the rotating mechanism provides reverse friction force for the welding strip. The rotating mechanism comprises a rolling type conveying mechanism, the conveying direction of the rolling type conveying mechanism is opposite to the traction direction of the traction mechanism, and the conveying force of the rolling type conveying mechanism is smaller than the traction force of the traction mechanism.

Under the condition of adopting above-mentioned technical scheme, the direction of delivery of roll formula transport mechanism is opposite with the direction of traction of drive mechanism, and transport mechanism contacts with the solder strip in the rotation process during the roll to provide reverse frictional force for the solder strip. Based on the method, the welding strip is subjected to the traction force provided by the traction mechanism and the reverse friction force provided by the rotating mechanism in the traction process of the traction mechanism, so that the traction force provided by the traction mechanism and the reverse friction force provided by the rotating mechanism are used for performing tension simulation.

In a possible implementation, the tension simulation mechanism comprises a movable pulley mechanism for cooperating with the welding strip. The tension simulation mechanism further comprises at least one load piece, and each load piece is detachably connected with the movable pulley mechanism.

Under the condition of adopting above-mentioned technical scheme, pulling force simulation mechanism including be used for with weld the area complex move pulley mechanism, move pulley mechanism for welding the area provide with the opposite frictional force of the pulling direction who welds the area. Based on this, the welding strip receives the frictional force that the pulling force provided for the welding strip for the movable pulley mechanism in by the drive mechanism pulling process to carry out the pulling force simulation through the traction force that the drive mechanism provided and the frictional force that the movable pulley mechanism provided.

In addition, the tension simulation mechanism also comprises at least one load piece, and each load piece is detachably connected with the movable pulley mechanism. When at least one load piece and movable pulley mechanism can dismantle the connection together, can increase movable pulley mechanism's weight, increase the frictional force that movable pulley mechanism provided for welding the area, consequently, can be through loading and unloading load piece and the quantity of adjustment load piece, convenient, quick adjustment moves the frictional force that pulley mechanism provided for welding the area to make the area that welds receive with the welding weld the pulling force that receives when taking the same.

In a possible implementation manner, the cutting mechanism comprises a first cutting head and a second cutting head matched with the first cutting head, and the first cutting head is arranged at the position of the measuring table, which is located in the cutting area; the second cutting head is a liftable cutting head.

Adopt under the condition of above-mentioned technical scheme, cutting mechanism includes first cutting head and with first cutting head complex second cutting head, but the second cutting head is the liftable cutting head. Based on this, the second cutting head contacts with first cutting head in the decline process to cut the welding strip between first cutting head and the second cutting head, make the welding strip cut, can not crooked wire drawing.

In a second aspect, the invention further provides a method for measuring the bending degree of the welding strip. The welding strip bending measuring method is applied to the welding strip bending measuring device described in the first aspect or any one of the possible implementation manners of the first aspect.

The method for measuring the bending degree of the welding strip comprises the following steps:

and S100, controlling a traction mechanism to pull the welding strip to sequentially pass through a cutting area, a first pressing area and a measuring area.

S200, controlling a traction mechanism to fix the end of the welding strip; and controlling the first pressing piece to press the part of the welding strip, which is positioned in the first pressing area, in the first pressing area.

And step S300, controlling a cutting mechanism to cut the welding strip in the cutting area, so that the welding strip in the measuring area is in a loose state.

S400, controlling an image collector to collect image information of a part of the welding strip, which is positioned in a measurement area, and sending the image information to terminal equipment; and the terminal equipment determines the bending degree of the welding strip according to the image information.

The beneficial effect of the method for measuring the bending degree of the solder strip provided by the second aspect is the same as that of the device for measuring the bending degree of the solder strip described in the first aspect or any one of the possible implementation manners of the first aspect, and details are not repeated here.

In a possible implementation manner, the terminal device determines the maximum distance and the minimum distance between the position of the welding strip in the measurement area and the measurement reference line according to the image information, and determines the bending degree of the welding strip according to the maximum distance, the minimum distance and the preset length of the welding strip. The measuring datum line is parallel to the extending direction of the welding strip, and the measuring datum line and the part of the welding strip, which is located in the measuring area, are located on the same horizontal plane.

Under the condition of adopting the technical scheme, the measuring datum line is parallel to the extending direction of the welding strip, and the measuring datum line and the part of the welding strip, which is positioned in the measuring area, are positioned on the same horizontal plane. Based on the method, when the welding strip is bent, the welding strip is bent towards the direction close to or far away from the measuring reference line, the terminal equipment determines the maximum distance and the minimum distance between the part of the welding strip located in the measuring area and the measuring reference line according to the image information, and the bending degree of the welding strip is determined according to the maximum distance, the minimum distance and the preset length of the welding strip.

In a possible implementation manner, the above-mentioned degree of strip bending β satisfies: β ═ S1-S2)/lx 100%. S1 is the maximum distance between the part of the welding strip located in the measuring area and the measuring reference line, S2 is the minimum distance between the part of the welding strip located in the measuring area and the measuring reference line, and L is the preset length of the welding strip.

In a possible implementation, the predetermined length of the solder strip is the span of the solder strip in the measurement area.

In a possible implementation manner, the step S300 includes:

and step S310, controlling a cutting mechanism to cut the welding strip in the cutting area.

And step S320, controlling the first pressing piece and the traction mechanism to be separated from the welding strip respectively, so that the welding strip is in a loose state.

In a possible implementation manner, when the device for measuring the bending degree of the solder strip includes the second pressing member, after step S100 and before step S300, the method for measuring the bending degree of the solder strip further includes: and controlling the second pressing piece to press the welding strip on the second pressing area.

Step S300 includes:

and step S310, controlling a cutting mechanism to cut the welding strip in the cutting area.

And step S320, controlling the first pressing piece, the traction mechanism and the second pressing piece to be separated from the welding strip respectively, so that the welding strip is in a loose state.

In a possible implementation manner, when the welding strip bending degree measuring device includes a welding strip unwinding device and a tensile force simulation mechanism, before step S200, the welding strip bending degree measuring method further includes:

and performing tension simulation on the welding strip unreeled by the welding strip unreeling device by using a tension simulation mechanism.

In a possible implementation manner, the above-mentioned welding strip that utilizes tensile force simulation mechanism to unreel the welding strip unwinding device to carry out tensile force simulation includes: and a rotating mechanism is utilized to provide reverse friction force for the welding strip, and the reverse friction force is smaller than the traction force of the traction mechanism.

In a possible implementation manner, the above-mentioned welding strip that utilizes tensile force simulation mechanism to unreel the welding strip unwinding device to carry out tensile force simulation includes: at least a movable pulley mechanism is used for providing tension for the welding strip.

In a possible implementation manner, the above-mentioned welding strip that utilizes tensile force simulation mechanism to unreel the welding strip unwinding device to carry out tensile force simulation includes: a movable pulley mechanism and at least one loading piece are used for providing tension for the welding strip.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a weld strip bow measurement device in an embodiment of the invention;

FIG. 2 is a partial top view of a weld strip bow measurement device in an embodiment of the invention;

FIG. 3 is a schematic view of a cutting mechanism in an embodiment of the present invention;

FIG. 4 is a schematic view of a plurality of weld strip bending measurement devices in an embodiment of the invention.

Reference numerals: a, a welding strip, 100, a measuring table, 110, a cutting area, 120, a measuring area, 130, a first pressing area, 140, a second pressing area, 150, a third pressing area, 200, a traction mechanism, 300, a first pressing piece, 400, a cutting mechanism, 410, a first cutting head, 420, a second cutting head, 500, an image collector, 600, a scale, 700, a second pressing piece, 800, a welding strip unwinding device, 910, a rotating mechanism, 920, a movable pulley mechanism, 930, a load piece, B, a third pressing piece and C, wherein the measuring datum line is measured.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "pressed against" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being a compression connection, a releasable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The embodiment of the invention provides a welding strip bending degree measuring device. Fig. 1 illustrates a schematic view of a solder strip bending measurement apparatus in an embodiment of the present invention. FIG. 2 illustrates a partial top view of a weld strip bow measurement device in an embodiment of the invention. As shown in fig. 1 and 2, the solder strip bending degree measuring apparatus includes: the measuring table 100, the traction mechanism 200, the first pressing piece 300, the cutting mechanism 400, the image collector 500 and the terminal equipment. The measuring station 100 has a cutting region 110, a measuring region 120 and a first clamping region 130 between the cutting region 110 and the measuring region 120.

In one example, as shown in fig. 1, the cutting region 110, the first pressing region 130, and the measuring region 120 may be sequentially disposed from left to right, but are not limited thereto.

As shown in fig. 1, a drawing mechanism 200 is provided at one side of the measuring table 100, and the solder ribbon a is drawn through the cutting area 110, the first pressing area 130, and the measuring area 120 in order via the drawing mechanism 200.

In one example, as shown in fig. 1, when the cutting region 110, the first pressing region 130, and the measuring region 120 are sequentially disposed from left to right, the drawing mechanism 200 may be disposed at the right side of the measuring region 120. The traction mechanism 200 may include a body and a traction head dynamically coupled to the body, the traction head being linearly reciprocated along the distribution direction of the cutting region 110, the first pressing region 130 and the measuring region 120. The body may be a telescopic motor or a telescopic cylinder, but is not limited thereto. The traction head may be a jaw fixed to the free end of the body, but is not limited thereto.

Specifically, the fuselage can be fixed on the right side of measuring region, and when pulling the welding strip, the tractor is connected with the end of welding the area, and the fuselage can be through the tractor with the welding strip pull in proper order and pass cutting region, first compress tightly regional and measuring region.

As shown in fig. 1, the first pressing member 300 is disposed in the first pressing region 130, and the first pressing member 300 is used for pressing the solder strip a in the first pressing region 130. The first pressing member 300 may be a cylinder or a linear guide mechanism, but is not limited thereto. As shown in fig. 1, the first pressing member 300 may be disposed above the measuring table 100, but is not limited thereto. When the first pressing member 300 is disposed above the measuring table 100, there may be a bracket above the measuring table 100, and an end of the first pressing member 300 remote from the measuring table 100 is disposed on the bracket. In operation, the end of the first pressing member 300 is close to the first pressing region 130 and is engaged with the first pressing region 130 to press the solder strip a between the first pressing member 300 and the first pressing region 130. The end of the first pressing member 300 is away from the first pressing region 130, and the solder strip a between the first pressing member 300 and the first pressing region 130 is loosened.

Specifically, as shown in fig. 1, a portion of the measuring table 100 located in the first pressing region 130 may be provided with a first pressing fitting piece contacting with the first pressing piece 300. The strength of the first press-fitting member is higher than that of the measuring table 100, and for example, the first press-fitting member 300 and the first press-fitting member may be a wear-resistant metal block, but are not limited thereto. First pressing member 300 and first compression fitting piece can reduce because of first pressing member 300 contacts with measuring table 100 many times, lead to the condition that measuring table 100 life is low, more importantly, reduce because of first pressing member 300 contacts with measuring table 100 many times, lead to the mesa unevenness of measuring table 100, influence measurement structure.

As shown in fig. 1, a cutting mechanism 400 is provided at the cutting area 110, and the cutting mechanism 400 is used for cutting the solder strip a in the cutting area 110. The cutting mechanism 400 may be provided above the measuring table 100, but is not limited thereto. Fig. 3 illustrates a schematic view of a cutting mechanism in an embodiment of the invention. As shown in fig. 3, when the cutting mechanism 400 is disposed above the measuring table 100, the cutting mechanism 400 may include a first cutting head 410 and a second cutting head 420 engaged with the first cutting head 410. The first cutting head 410 is disposed in the measuring table 100 in the cutting area 110, and the second cutting head 420 is a liftable cutting head disposed above the first cutting head 410.

Specifically, as shown in fig. 3, the ends of the first cutting head 410 and the second cutting head 420 may be wear-resistant metal blocks. The tips of the first cutting head 410 and the second cutting head 420 may be shaped like the upper and lower blades of a scissors. The first cutting head 410 may be disposed on the top surface of the measuring table 100, and in order to prevent the first cutting head 410 from affecting the movement of the welding strip a, the first cutting head 410 may be disposed on the measuring table 100, and the top surface of the first cutting head 410 and the measuring reference line C are located on the same horizontal plane.

As shown in fig. 3, the cutting mechanism 400 includes a first cutting head 410 and a second cutting head 420 engaged with the first cutting head 410, the second cutting head 420 being a liftable cutting head. Based on this, the second cutting head 420 comes into contact with the first cutting head 410 during the lowering, thereby cutting the solder ribbon a between the first cutting head 410 and the second cutting head 420, so that the solder ribbon a is not bent after being cut.

As shown in fig. 1, an image collector 500 is disposed in the measurement area 120, and the image collector 500 is used for collecting image information of the solder strip a in the measurement area 120. In one example, as shown in fig. 1, the image collector 500 may be disposed above the measuring table 100, but is not limited thereto, and the image collector 500 may be a digital display microscope or an electron microscope, but is not limited thereto. The terminal device is in communication connection with the image collector 500, and the terminal device determines the curvature of the welding strip A according to the image information.

The terminal device may include: a processor and a communication interface, the communication interface coupled to the processor, the processor configured to execute computer programs or instructions. The terminal equipment can be communicated with the image collector through the communication interface.

The processor may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs according to the present invention. The number of the communication interfaces may be one or more. The communication interface may use any transceiver or the like for communicating with other devices or communication networks.

Optionally, the terminal device may further include a memory. The memory is used for storing computer instructions for implementing the inventive arrangements and is controlled in execution by the processor. The processor is configured to execute computer instructions stored in the memory.

FIG. 4 illustrates a schematic view of a plurality of weld strip bow measurement devices in an embodiment of the invention. As shown in fig. 4, a plurality of welding strip bending degree measuring devices may be provided at the same time, and the plurality of welding strip bending degree measuring devices may share one measuring table 100, that is, a plurality of welding strips a may be measured at the same time.

In practical application, the device for measuring the bending degree of the solder strip provided by the embodiment of the invention can be arranged at the position of producing the solder strip. For example, the welding strip bending degree measuring device is arranged at the welding strip rolling device, and before rolling the welding strip, the welding strip rolling device firstly connects the welding strip to the welding strip bending degree measuring device to measure the bending degree. The welding strip curvature measuring device provided by the embodiment of the invention can also be arranged at the stringer, and the stringer is connected with the welding strip curvature measuring device for curvature measurement before the welding strip is used, so that the real-time curvature monitoring of the on-line full-welding strip section before the welding strip is used in welding is realized.

As shown in fig. 1, the method for measuring the bending degree of the solder strip bending degree measuring device includes: the pulling mechanism 200 is controlled to pull the welding strip a through the cutting area 110, the first pressing area 130 and the measuring area 120 in sequence. When the end of the solder strip a is located at one end of the measuring region 120 away from the first pressing region 130, the traction mechanism 200 is controlled to fix the end of the solder strip a, and the first pressing member 300 is controlled to press the portion of the solder strip a located in the first pressing region 130 against the first pressing region 130. Next, the cutting mechanism 400 is controlled to cut the solder ribbon a at the cutting area 110 so that the solder ribbon a in the measurement area 120 is in a slack state. Finally, the image collector 500 is controlled to collect image information of the part of the welding strip a located in the measurement area 120, the image information is sent to the terminal device, and the terminal device determines the curvature of the welding strip a according to the image information. In practical application, the terminal equipment can draw a bending curve graph of the welding strip A according to the image information and display the bending curve graph on the display, and workers can visually see the bending curve graph of the welding strip A.

As shown in fig. 1, the above-mentioned making the portion of the solder ribbon a located in the measurement area 120 in a relaxed state includes separating the first pressing member 300 from the first pressing area 130 so that one end of the solder ribbon a is in a relaxed state. In order to make the measurement more accurate, the traction mechanism 200 can be separated from the end of the welding strip A, and the welding strip A which is cut off at the moment is bent under the action of the traction mechanism. In order to conveniently control the tension applied to the welding strip A, the traction mechanism 200 can be used for dragging the welding strip A at a constant speed. In addition, in order to make the tensile force applied to the solder ribbon a measured each time the same, the pulling speed of the pulling mechanism 200 may be made the same each time.

As shown in fig. 1 and 2, it can be seen from the above that, when the welding strip a is pulled by the pulling mechanism 200, the pulling force of the pulling mechanism 200 is easily controlled compared with the manner of manually pulling the welding strip a, so that the pulling force applied to the welding strip a is easily controlled, the elongation of the welding strip a is controlled, and the accuracy of the measured bending degree is improved.

In addition, as shown in fig. 1, when the cutting mechanism 400 cuts the welding strip a at the end of the first pressing member 300 away from the traction mechanism 200, the cut welding strip a is fixed by the first pressing member 300 and the traction mechanism 200, so that the amplitude of springback of the welding strip a in a tight state after being cut is reduced, the influence of cutting the welding strip a on the elongation of the welding strip a is reduced, and the accuracy of the measured bending is improved.

Furthermore, as shown in fig. 1, the image collector 500 may collect image information of each part of the solder strip a located in the measurement area 120, and has a high accuracy compared to a method of randomly selecting test points. And the terminal equipment is used for determining the curvature of the welding strip A according to the image information, and the obtained data is more accurate compared with the manually read data, so that the precision of the measured curvature is improved.

As a possible implementation manner, as shown in fig. 2, the image collector 500 may be configured to collect image information of a portion of the solder strip a in the measurement area 120 along an extending direction of the solder strip a in the measurement area 120. Based on this, it is possible to facilitate the entire collection of the image information of the solder ribbon a in the extending direction of the solder ribbon a within the measurement area 120.

As shown in fig. 2, the welding strip bending degree measuring device may further include a first driving mechanism. Image collector 500 is disposed on a first driving mechanism, which is used to drive image collector 500 to move along the extending direction of solder strip a.

As shown in fig. 2, the first driving mechanism may be, but is not limited to, a cylinder or a linear guide mechanism. When the welding strip bending degree measuring device comprises a support positioned above the measuring table 100, the first driving mechanism is arranged on the support, the image collector 500 is arranged on the free end of the first driving mechanism, and the extending direction of the free end is parallel to the extending direction of the welding strip A. When the image collector 500 collects the image information of the welding strip a, the first driving mechanism drives the image collector 500 to move along the extending direction of the welding strip a, so that the image information of each position of the welding strip a along the extending direction is collected.

As shown in FIG. 2, the weld strip bending measurement apparatus may further include a second drive mechanism. Image collector 500 is disposed on a second driving mechanism, which is used to drive image collector 500 to approach or leave solder strip a.

As shown in fig. 2, the image collector 500 is provided on the free end of the second driving mechanism, and the extending direction of the free end is perpendicular to the extending direction of the solder ribbon a. When the image information of the welding strip A needs to be collected, the second driving mechanism drives the image collector 500 to be close to the welding strip A, so that the image information collected by the image collector 500 is more accurate. When the welding strip curvature measuring device does not need to collect the image information of the welding strip A, the second driving mechanism drives the image collector 500 to be far away from the welding strip A, and the image collector 500 is prevented from influencing the work of the traction mechanism 200 or other components.

The welding strip bending degree measuring device can simultaneously comprise a first driving mechanism and a second driving mechanism. When the welding strip bending degree measuring device simultaneously comprises the first driving mechanism and the second driving mechanism, the first driving mechanism can be fixed on the support, the second driving mechanism is arranged at the free end of the first driving mechanism, and the image collector is arranged at the free end of the second driving mechanism. Of course, the second driving mechanism may also be fixed on the bracket, the first driving mechanism is disposed at the free end of the second driving mechanism, and the image collector is disposed at the free end of the first driving mechanism.

As a possible implementation, as shown in fig. 2, the measuring table 100 may have a scale 600 distributed along the extending direction of the solder ribbon a at a position of the measuring region 120.

Specifically, as shown in fig. 2, the scale 600 may be engraved on the surface of the measuring table 100, or a ruler with the scale 600 may be fixed on the top of the measuring table 100, in which case the ruler belongs to a part of the measuring table 100.

As shown in fig. 2, the measuring table 100 has a scale 600 distributed along the extending direction of the solder strip a at the position of the measuring area 120, and the length of the solder strip a at the measuring area 120 can be quickly and intuitively obtained through the scale 600, so as to facilitate the calculation of the bending degree of the solder strip a. And, the distances between the respective portions of the solder ribbon a and the measurement reference line C may be marked according to the positions of the different scales 600.

As a possible implementation manner, as shown in fig. 1, the welding strip bending degree measuring device may further include a position sensor disposed at one side of the measuring table 100. A position sensor is located at an end of the measurement region 120 remote from the first compression region 130 for sensing position information of the tractor head. The position sensor, the pulling mechanism 200 and the first pressing member 300 are respectively in communication with the terminal device. The terminal equipment determines that the drawing head is positioned at one end of the measuring area 120 far away from the first pressing area 130 according to the position information, and controls the first pressing piece 300 to press the welding strip A on the first pressing area 130.

As shown in fig. 1, the position sensor, the drawing mechanism 200, and the first pressing member 300 are respectively in communication with the terminal device. Under the condition that the terminal equipment determines that the traction mechanism 200 is located at the measuring area 120 and is far away from one end of the first compression area 130 according to the position information of the traction head, the first compression piece 300 is controlled to compress the welding strip A at the first compression area 130, so that the process of compressing the welding strip A is controlled by the terminal equipment, manual participation is not needed, the labor cost is saved, the automation degree of the welding strip curvature measuring device is improved, and the detection efficiency is improved.

As a possible implementation manner, as shown in fig. 1, the welding strip bending degree measuring device further includes a pressure sensor communicating with the terminal device. The pressure sensor is disposed at the first pressing area 130, and is used for sensing pressure information of the first pressing area 130. The terminal device also determines that the solder ribbon a is pressed in the first pressing area 130 based on the pressure information, and controls the cutting mechanism 400 to cut the solder ribbon a.

As shown in fig. 1, the terminal device communicates with the cutting mechanism 400, the pressure sensor is used for sensing pressure information of the first compression region 130, the terminal device determines that the welding strip a is compressed in the first compression region 130 according to the pressure information, and controls the cutting mechanism 400 to cut the welding strip a in the cutting region 110, so that the process of cutting the welding strip a is controlled by the terminal device, manual participation is not needed, the labor cost is saved, the automation degree of the welding strip curvature measuring device is improved, and the detection efficiency is improved.

As a possible implementation, as shown in fig. 1 and 2, the measuring table 100 may further have a second pressing area 140, and the measuring area 120 is located between the first pressing area 130 and the second pressing area 140. The welding strip bending degree measuring device further comprises a second pressing member 700 arranged at the second pressing area 140, and the second pressing member 700 is used for pressing the welding strip A on the second pressing area 140.

Specifically, as shown in fig. 1 and fig. 2, the measuring table 100 located in the second pressing area 140 may also be provided with a fitting piece with the second pressing element 700, and the structure and the operation principle of the second pressing fitting piece are the same as those of the first pressing fitting piece, which are not described herein again.

As shown in fig. 1, the measuring station 100 has a second pinched region 140, and the measuring region 120 is located between the first pinched region 130 and the second pinched region 140. When cutting the welding strip a, the welding strip a is sequentially pulled by the pulling mechanism 200 to pass through the cutting area 110, the first pressing area 130, the measuring area 120 and the second pressing area 140, the second pressing piece 700 presses the welding strip a on the second pressing area 140, so that when the welding strip a is cut, one end of the welding strip a is fixed by the first pressing piece 300, and the other end of the welding strip a is fixed by the second pressing piece 700, so that the state of the cut welding strip a is stable. And the one end of welding area A far away from first compressing part 300 is fixed by second compressing part 700, and in the cutting welding area A process, need not that drive mechanism 200 fixes welding area A for drive mechanism 200 uses more nimble, convenient.

As a possible implementation manner, as shown in fig. 1, the device for measuring the bending degree of the solder strip may further include a solder strip unwinding device 800 and a tensile force simulation mechanism. The solder strip unwinding device 800 is used for unwinding the solder strip a. The tension simulation mechanism is used for carrying out tension simulation on the unreeled welding strip A.

In one example, as shown in fig. 1, when the drawing mechanism 200 is disposed at the right side of the measuring table 100, the solder ribbon unwinding device 800 is disposed at the left side of the measuring table 100. The solder strip unwinding device 800 may be a rotating shaft, and the solder strip a is sleeved on the rotating shaft in a reel shape. The drawing mechanism 200 is connected to one end of the welding strip a on the rotating shaft, thereby drawing the welding strip a from left to right. In order to adjust the traction stability of the welding strip a and the direction of the welding strip a entering the measuring table 100, as shown in fig. 1, at least one fixed pulley may be disposed between the welding strip unwinding device 800 and the traction mechanism 200, and the welding strip a passes through the at least one fixed pulley.

In practical application, the tensile force to which the solder strip is subjected during welding is measured in advance, so that the elongation of the solder strip in practical application is obtained.

As shown in FIG. 1, pulling force simulation mechanism is used for carrying out the pulling force simulation to the solder strip A after unreeling, and the pulling force that receives when making solder strip A receive is the same with the welding solder strip A to the state of simulation solder strip A when the welding, the percentage elongation that makes solder strip A is the same with the percentage elongation before welding of solder strip A, thereby makes the crookedness of measuring for the crookedness of solder strip A practical application in-process, makes the crookedness of measuring more accurate.

In an alternative, as shown in FIG. 1, the measurement station 100 may also have a third clamping area 150. The cutting region 110 is located between the first compression region 130 and the third compression region 150. The welding strip bending degree measuring device further comprises a third pressing piece B arranged in the third pressing area 150, and the third pressing piece B is used for pressing the welding strip A in the third pressing area 150. The tension simulating mechanism is located on the side of the third compression region 150 remote from the cutting region 110.

In an example, as shown in fig. 1, when the solder strip unwinding device 800 is disposed at the left side of the measuring table 100, the third pressing area 150 is located at the left side of the cutting area 110, and the tension simulation mechanism is located at the left side of the third pressing area 150. Specifically, the measuring table 100 located in the third pressing area 150 may also be provided with a mating member with the third pressing member B, and the structure and the working principle of the third pressing mating member may be the same as those of the first pressing mating member, which is not described herein again.

In practical use, as shown in fig. 1, when the pulling mechanism 200 pulls the welding strip a, the third pressing member B is separated from the third pressing region 150. When the cutting mechanism 400 cuts the solder strip a, the third pressing member B approaches the third pressing region 150, and presses the solder strip a between the third pressing member B and the third pressing region 150. After the welding strip a is cut, the third pressing member B still presses the welding strip a close to one end of the welding strip unwinding device 800. When the next measurement is performed, after the traction mechanism 200 is connected to the end of the welding strip a, the third pressing member B is separated from the third pressing area 150.

As shown in fig. 1, the cutting area 110 is located between the first pressing area 130 and the third pressing area 150, the third pressing member B is used for pressing the solder strip a on the third pressing area 150, and the tension simulation mechanism is located on a side of the third pressing area 150 away from the cutting area 110. Based on this, when cutting the solder ribbon a, the third pressing member B presses the portion of the solder ribbon a located in the third pressing area 150 against the third pressing area 150. After the cutting mechanism 400 cuts the welding strip a, the third pressing member B presses the end, away from the first pressing region 130, of the welding strip a in the cutting region 110 to the third pressing region 150, so that the tensile force simulation mechanism is prevented from moving the welding strip a out of the measuring table 100, and therefore when the next measurement is performed, the traction mechanism 200 is connected with the end, away from the first pressing region 130, of the welding strip a in the cutting region 110.

In an alternative, as shown in fig. 1, the tension simulating mechanism may include a rotating mechanism 910 for providing a counter-friction force to the welding strip a.

As shown in fig. 1, the rotating mechanism 910 may include a rolling type transmission mechanism, which has a transmission direction opposite to the traction direction of the traction mechanism 200, and a transmission force of the rolling type transmission mechanism is smaller than the traction force of the traction mechanism 200.

As shown in fig. 1, the rolling type transfer mechanism has a transfer direction opposite to the pulling direction of the pulling mechanism 200, and the transfer mechanism contacts with the solder ribbon a during rotation during rolling, thereby providing a counter friction force to the solder ribbon a. Based on this, the welding strip a is subjected to a pulling force during the process of being pulled by the pulling mechanism 200 to provide a pulling force for the pulling mechanism 200 and a reverse friction force provided by the rotating mechanism 910, so that a pulling force simulation is performed through the pulling force provided by the pulling mechanism 200 and the reverse friction force provided by the rotating mechanism 910.

In another alternative, as shown in FIG. 1, the tension simulating mechanism may include a movable pulley mechanism 920 for engaging the welding ribbon A.

As shown in fig. 1, the tension simulation mechanism includes a movable pulley mechanism 920 for cooperating with the welding strip a, and the movable pulley mechanism 920 is carried on the welding strip a. During the process of pulling the welding strip a, the movable pulley mechanism 920 provides a friction force to the welding strip a opposite to the pulling direction of the welding strip a, so that a pulling force simulation is performed by the pulling force provided by the pulling mechanism 200 and the friction force provided by the movable pulley mechanism 920.

In one example, as shown in fig. 1, the tension simulation mechanism may further include at least one load member 930, and each load member 930 may be detachably connected to the movable pulley mechanism 920. The load member 930 may be a weight, but is not limited thereto. After the experiment, can acquire the solder strip A percentage of elongation that every weight corresponds, when measuring corresponding solder strip A crookedness, can select the weight of corresponding weight according to solder strip A percentage of elongation.

As shown in fig. 1, the tension simulation mechanism further includes at least one load member 930, and each load member 930 is detachably connected to the movable pulley mechanism 920. When at least one load member 930 is detachably connected with the movable pulley mechanism 920, the weight of the movable pulley mechanism 920 can be increased, and the friction force provided by the movable pulley mechanism 920 for the welding strip a can be increased, so that the friction force provided by the movable pulley mechanism 920 for the welding strip a can be conveniently and quickly adjusted by assembling and disassembling the load member 930 and adjusting the number of the load members 930, so that the welding strip a can be subjected to the same tension force as that of the welding strip a during welding.

The embodiment of the invention also provides a method for measuring the bending degree of the welding strip, and the device for measuring the bending degree of the welding strip is applied. The method for measuring the bending degree of the welding strip comprises the following steps:

and S100, controlling a traction mechanism to pull the welding strip to sequentially pass through a cutting area, a first pressing area and a measuring area.

And S200, controlling a traction mechanism to fix the end of the welding strip, and controlling a first pressing piece to press the part of the welding strip, which is positioned in a first pressing area, in the first pressing area.

And step S300, controlling a cutting mechanism to cut the welding strip in the cutting area, so that the welding strip in the measuring area is in a loose state.

And S400, controlling an image collector to collect image information of the part of the welding strip located in the measuring area, sending the image information to the terminal equipment, and determining the curvature of the welding strip by the terminal equipment according to the image information.

The terminal equipment determines the maximum distance and the minimum distance between the position of the welding strip in the measuring area and the measuring reference line according to the image information, and determines the bending degree of the welding strip according to the maximum distance, the minimum distance and the preset length of the welding strip.

The bending beta of the welding strip meets the following conditions: β ═ S1-S2)/lx 100%. S1 is the maximum distance between the part of the welding strip located in the measuring area and the measuring reference line, S2 is the minimum distance between the part of the welding strip located in the measuring area and the measuring reference line, and L is the preset length of the welding strip. When the bending degree of the welding strip is measured, the terminal equipment obtains the bending degree of the strip according to the beta (S1-S2)/Lx 100%. The preset length of the solder strip can be the span of the solder strip in the measurement area.

As shown in fig. 2, the measurement reference line C is parallel to the extending direction of the welding strip a, and the measurement reference line C and the portion of the welding strip a located in the measurement region 120 are located on the same horizontal plane. In one example, the solder ribbon a extends from left to right on the top of the measurement table 100, and the measurement reference line C may be disposed on the top of the measurement table 100 from left to right.

Specifically, as shown in fig. 2, when the solder ribbon a is cut and in a relaxed state, the solder ribbon a is bent in a direction approaching or separating from the measurement reference line C (i.e., in fig. 2, the solder ribbon a is bent downward or upward), so that a gap occurs between the solder ribbon a and the measurement reference line C, and the image acquirer 500 acquires distances between the measurement reference line C and the solder ribbon a at positions in the measurement area 120, and obtains a maximum distance S1 and a minimum distance S2. The terminal device can obtain the ribbon bending according to the beta ═ S1-S2)/lx 100%.

In one example, as shown in fig. 2, when the solder strip a extends from left to right on the top of the measurement table 100, a straight edge may be provided on the top of the measurement table 100 from left to right. At this time, a straight line on which one side of the straight edge close to the solder ribbon a is located may be used as the measurement reference line C. In addition, the ruler can be convexly arranged on the measuring table 100, and on the basis, when the welding strip A is bent, the ruler convexly arranged on the measuring table 100 can limit the welding strip A to the same side of the ruler, so that the maximum distance and the minimum distance between the welding strip A and the measuring reference line C can be conveniently and accurately obtained, and the obtained bending degree is more accurate.

As a possible implementation manner, the step S300 may include:

and step S310, controlling a cutting mechanism to cut the welding strip in the cutting area.

And step S320, controlling the first pressing piece and the traction mechanism to be separated from the welding strip respectively, so that the welding strip is in a loose state.

As a possible implementation manner, when the welding strip bending degree measuring device includes the second pressing member, after step S100 and before step S300, the welding strip bending degree measuring method further includes: and controlling the second pressing piece to press the welding strip on the second pressing area.

Step S300 includes:

and step S310, controlling a cutting mechanism to cut the welding strip in the cutting area.

And step S320, controlling the first pressing piece, the traction mechanism and the second pressing piece to be separated from the welding strip respectively, so that the welding strip is in a loose state.

In a possible implementation manner, when the welding strip bending degree measuring device includes a welding strip unwinding device and a tensile force simulation mechanism, before step S200, the welding strip bending degree measuring method further includes: and performing tension simulation on the welding strip unreeled by the welding strip unreeling device by using a tension simulation mechanism.

Wherein, utilize tensile force simulation mechanism to carry out tensile force simulation to the welding strip that welding strip unreeling device unreeled, can include: and a rotating mechanism is utilized to provide reverse friction force for the welding strip, and the reverse friction force is smaller than the traction force of the traction mechanism. At least a movable pulley mechanism can be used for providing tension for the welding strip. Of course, a movable pulley mechanism and at least one load member may be used to provide tension to the weld bead.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.