Steel pipe cutting system based on wall thickness measurement result
阅读说明：本技术 基于壁厚测量结果的钢管切割系统 (Steel pipe cutting system based on wall thickness measurement result ) 是由 不公告发明人 于 2019-10-28 设计创作，主要内容包括：本发明提供一种基于壁厚测量结果的钢管切割系统,包括壁厚测量装置、输送平台、切割装置和控制器,壁厚测量装置用于对钢管各个区段的壁厚进行测量,将测量结果发送给控制器,并将壁厚测量完成后的钢管输送给输送平台,输送平台的入口处设置有红外位置传感器,红外位置传感器在检测到有钢管输送至输送平台的入口时,向控制器发送到位信号,输送平台将壁厚测量完成后的钢管输送到切割装置中,控制器在接收到所述到位信号后,根据输送平台的输送速度,确定当前输送至切割装置中的钢管的区段,若该区段的壁厚不合格,则控制切割装置对该区段进行切割。本发明可以避免钢管因某个区段不合格而整体报废,使得可能报废的钢管得到充分利用。(The invention provides a steel pipe cutting system based on a wall thickness measuring result, which comprises a wall thickness measuring device, a conveying platform, a cutting device and a controller, wherein the wall thickness measuring device is used for measuring the wall thickness of each section of a steel pipe, sending the measuring result to the controller, conveying the steel pipe after the wall thickness measurement is finished to the conveying platform, an infrared position sensor is arranged at an inlet of the conveying platform, when the infrared position sensor detects that the steel pipe is conveyed to the inlet of the conveying platform, the infrared position sensor sends an in-place signal to the controller, the conveying platform conveys the steel pipe after the wall thickness measurement is finished to the cutting device, after receiving the in-place signal, the controller determines the section of the steel pipe currently conveyed to the cutting device according to the conveying speed of the conveying platform, and if the wall thickness of the section is unqualified, the cutting device is controlled to cut the section. The invention can avoid the whole scrapping of the steel pipe due to the disqualification of a certain section, so that the steel pipe which is possibly scrapped can be fully utilized.)
1. A steel pipe cutting system based on wall thickness measurement results is characterized by comprising a wall thickness measuring device, a conveying platform, a cutting device and a controller, wherein the wall thickness measuring device is used for measuring the wall thickness of each section of a steel pipe, sending the measurement results to the controller and conveying the steel pipe after the wall thickness measurement is completed to the conveying platform, an infrared position sensor is arranged at an inlet of the conveying platform, when the infrared position sensor detects that the steel pipe is conveyed to the inlet of the conveying platform, the infrared position sensor sends a position signal to the controller, the conveying platform conveys the steel pipe after the wall thickness measurement is completed to the cutting device, after the controller receives the position signal, the controller determines the section of the steel pipe currently conveyed to the cutting device according to the conveying speed of the conveying platform, and if the wall thickness of the section is unqualified, the cutting device is controlled to cut the section.
2. The steel pipe cutting system based on the wall thickness measurement result according to claim 1, wherein the wall thickness measurement device comprises a first conveying device for conveying the steel pipe to the right in the transverse direction, a vertical baffle is arranged on the left side of the first conveying device, a first infrared distance measurement sensor array corresponding to each section of the steel pipe is arranged on the baffle, the first infrared distance measurement sensor array corresponding to each section comprises a plurality of first infrared distance measurement sensors arranged along the up-down direction, each first infrared distance measurement sensor is used for detecting the linear distance between the corresponding position of the outer wall of the steel pipe in the section and the baffle, and the detected linear distance information is sent to the controller; a first conveying mechanism is arranged on the rear side of the first conveying device, a first detection round rod extending towards the first conveying device is fixed on a first conveying belt of the first conveying mechanism, the first detection round rod is inserted into the steel pipe and is coaxial with the steel pipe, a second infrared distance measurement sensor array corresponding to each section of the steel pipe is arranged on the outer surface of the first detection round rod, each second infrared distance measurement sensor array comprises a plurality of second infrared distance measurement sensors which are located on the same circular cross section and can correspond to the first infrared distance measurement sensors in the section, and each second infrared distance measurement sensor is used for detecting the radial distance between the corresponding position of the inner wall of the steel pipe in the section and the outer surface of the first detection round rod and sending the detected radial distance information to a controller; for each section, a connecting line between the corresponding position of the outer wall detected by the first infrared distance measuring sensor and the corresponding position of the inner wall detected by the second infrared distance measuring sensor, which correspond to each other, on the section theoretically intersects with the axis of the first detection round rod, and for the first infrared distance measuring sensor and the second infrared distance measuring sensor, which correspond to each section, the controller determines the wall thickness of the corresponding position of the section according to the corresponding linear distance information and radial distance information, wherein the theoretically means that the corresponding position of the outer wall detected by the first infrared distance measuring sensor and the corresponding position of the inner wall detected by the second infrared distance measuring sensor, which correspond to each other, are assumed to be flat;
the controller determines that wall thickness measurement of the steel pipe facing to each corresponding position on one side of the baffle is completed after receiving the preset time of the linear distance information and the radial distance information, controls the first conveying device to convey the steel pipe to the right transversely for corresponding distances and controls the first conveying belt to drive the first detection round rod to move to the right for corresponding distances after determining that the wall thickness measurement of the steel pipe facing to each corresponding position on one side of the baffle is completed each time, so that other sides of the steel pipe face to the baffle in sequence, and the wall thickness of each corresponding position on other sides of the steel pipe is measured by using the first infrared distance measurement sensor array and the second infrared distance measurement sensor array.
3. The steel pipe cutting system based on wall thickness measurement according to claim 2, wherein the controller, when determining the wall thickness at the position corresponding to the section based on the corresponding linear distance information and radial distance information, performs calculation according to the following formula:
h '═ h- (x' -x) - (y '-y) + w, wherein h' represents the actual wall thickness, h represents the theoretical wall thickness when the inner wall and the outer wall at the position corresponding to the section are both flat, x 'represents the actual linear distance, x represents the theoretical linear distance when the inner wall and the outer wall at the position corresponding to the section are both flat, y' represents the actual radial distance, y represents the theoretical radial distance when the inner wall and the outer wall at the position corresponding to the section are both flat, and w is a correction value determined according to the outer diameter of the steel pipe and the positional relationship between the first infrared distance measuring sensor and the steel pipe.
4. The steel pipe cutting system according to claim 2, wherein the first transportation means comprises a plurality of rollers and a first motor for controlling the rotation of each roller, and the controller controls the first motor to drive the rollers to rotate after each wall thickness measurement for determining each corresponding position of the side of the steel pipe facing the baffle is completed, so that the rollers drive the steel pipe on the rollers to be transported to the right transversely by a corresponding distance.
5. The steel pipe cutting system based on the wall thickness measurement result according to claim 4, wherein a first electric telescopic rod capable of extending and retracting in the vertical direction is arranged on the first conveyor belt, a second motor is fixed on the first electric telescopic rod, the second motor is connected with the first detection round rod and used for driving the first detection round rod to rotate axially, for each section, a plurality of groups of second infrared distance measurement sensor arrays corresponding to the section are arranged on the outer surface of the first detection round rod, and each group of second infrared distance measurement sensor arrays correspond to steel pipes with different outer diameters; the first detection round rod is positioned between two left and right adjacent roll shafts;
after receiving the outer diameter parameters of the steel pipe to be measured, the controller controls the first conveying mechanism to convey, drives the first detection round rod to move left and right, controls the first electric telescopic rod to stretch according to the position relation between the current first detection round rod and the roller shaft, drives the first detection round rod to move up and down until the first detection round rod moves to the first position, and at the moment, the steel pipe penetrates into the steel pipe while being conveyed to the roller shaft below the first detection round rod, and at the moment, the first detection round rod is coaxial with the steel pipe; and controlling the second motor to rotate, and rotating a group of second infrared distance measuring sensor arrays corresponding to the outer diameter on the first detection round rod to corresponding positions so that connecting lines of the corresponding positions of the inner wall detected by each second infrared distance measuring sensor in the group of second infrared distance measuring sensor arrays and the corresponding positions of the outer wall detected by the corresponding first infrared distance measuring sensor arrays are intersected with the axis of the first detection round rod theoretically.
6. The steel pipe cutting system based on the wall thickness measurement result of claim 5, wherein the wall thickness measuring device further comprises a second conveying device and a third conveying device, the second conveying device is arranged relative to the first conveying device, the first conveying device is arranged between the second conveying device and the first conveying device, the third conveying device is arranged at the right side of the first conveying device, the second conveying device conveys the steel pipe longitudinally to the first conveying device, the axis of the steel pipe is opposite to the axis of the corresponding detection round rod during the longitudinal conveying of the steel pipe from the second conveying device to the first conveying device by moving the corresponding detection round rod to the first position according to the outer diameter parameter of the steel pipe to be measured, the corresponding detection round rod is gradually inserted into the steel pipe and is coaxial with the steel pipe during the conveying of the steel pipe, the first conveying device conveys the steel pipe to the third conveying device in the right transverse direction, and the third conveying device conveys the steel pipe in the direction opposite to the conveying direction of the second conveying device so as to take out the corresponding detection round rod from the steel pipe.
7. The steel pipe cutting system based on the wall thickness measurement result of claim 6, wherein the second conveying device comprises a driving wheel, a driven wheel, a second conveying belt inclining to the right side and a supporting plate, the second conveying belt is arranged between the driving wheel and the driven wheel in a winding mode, the supporting plate is located between the driving wheel and the driven wheel and is attached to the upper surface of the second conveying belt, and a limiting plate is arranged on the right side of the second conveying belt.
8. The steel pipe cutting system based on the wall thickness measurement result according to claim 6, wherein a vertical baffle is also arranged on the right side of the first conveying device, a second conveying mechanism is further arranged on the rear side of the first conveying mechanism, a second electric telescopic rod which can stretch in the vertical direction is arranged on a conveying belt of the second conveying mechanism, a third motor is fixed on the second electric telescopic rod, and the third motor is connected with a second detection round rod and used for driving the second detection round rod to rotate axially;
for each pair of steel pipes conveyed to the first conveying device, the controller firstly utilizes the first infrared distance measuring sensor array on the left baffle plate to measure the linear distance of the corresponding position on each section of the steel pipe, after the data required by the wall thickness measurement of each corresponding position on one side of the steel pipe facing the left baffle plate is determined to be acquired, the first conveying device is controlled to convey the steel pipe to the right in the transverse direction for the corresponding distance, the first conveying belt is controlled to drive the first detection round rod to move to the right for the corresponding distance, then the first infrared distance measuring sensor array on the right baffle plate is switched to measure the linear distance of the corresponding position on each section of the steel pipe, the second conveying mechanism and the second electric telescopic rod are controlled to act so as to move the second detection round rod to the first position, and then the second conveying device is controlled to enable the axis of the next steel pipe to face the axis of the second detection round rod, and longitudinally conveying the steel pipe to the first conveying device, and inserting the second detection round rod into the steel pipe, wherein the second detection round rod is coaxial with the steel pipe.
9. The steel pipe cutting system based on wall thickness measurements according to claim 8, wherein the third conveyor is located below the right baffle.
10. The steel pipe cutting system based on the wall thickness measurement result according to claim 2 or 5, wherein the second infrared distance measurement sensor arrays are arranged on the first detection round bar for the sections, and the distribution of the second infrared distance measurement sensors on the cross section is the same.
Technical Field
The invention belongs to the field of steel pipe cutting, and particularly relates to a steel pipe cutting system based on a wall thickness measurement result.
Background
With the continuous rise of the building industry, how to improve the building quality becomes a problem which people pay attention to gradually. The use amount of steel pipe in the building trade is very big, and the steel pipe need carry out quality testing after being generated out, can get into the market after each item quality reaches standard, and at present the steel pipe is carrying out quality testing time, as long as certain position of steel pipe is not up to standard, whole steel pipe all can be scrapped so, leads to the disability rate of steel pipe higher like this, can't make scrapped steel pipe also obtain abundant utilization.
Disclosure of Invention
The invention provides a steel pipe cutting system based on a wall thickness measurement result, which aims to solve the problems that the whole steel pipe is scrapped as long as a certain part does not reach the standard, and the scrapped steel pipe cannot be fully utilized.
According to a first aspect of the embodiments of the present invention, a steel pipe cutting system based on a wall thickness measurement result is provided, which includes a wall thickness measurement device, a conveying platform, a cutting device and a controller, wherein the wall thickness measurement device is configured to measure a wall thickness of each section of a steel pipe, send a measurement result to the controller, and convey the steel pipe after the wall thickness measurement is completed to the conveying platform, an infrared position sensor is disposed at an inlet of the conveying platform, the infrared position sensor sends an in-place signal to the controller when detecting that the steel pipe is conveyed to the inlet of the conveying platform, the conveying platform conveys the steel pipe after the wall thickness measurement is completed to the cutting device, after receiving the in-place signal, the controller determines a section of the steel pipe currently conveyed to the cutting device according to a conveying speed of the conveying platform, and if the wall thickness of the section is not qualified, controlling the cutting device to cut the section.
In an optional implementation manner, the wall thickness measuring device comprises a first conveying device for conveying the steel pipe to the right in a transverse direction, a vertical baffle is arranged on the left side of the first conveying device, a first infrared distance measuring sensor array corresponding to each section of the steel pipe is arranged on the baffle, the first infrared distance measuring sensor array corresponding to each section comprises a plurality of first infrared distance measuring sensors arranged along the up-down direction, each first infrared distance measuring sensor is used for detecting a linear distance between a position corresponding to the outer wall of the steel pipe in the section and the baffle, and the detected linear distance information is sent to the controller; a first conveying mechanism is arranged on the rear side of the first conveying device, a first detection round rod extending towards the first conveying device is fixed on a first conveying belt of the first conveying mechanism, the first detection round rod is inserted into the steel pipe and is coaxial with the steel pipe, a second infrared distance measurement sensor array corresponding to each section of the steel pipe is arranged on the outer surface of the first detection round rod, each second infrared distance measurement sensor array comprises a plurality of second infrared distance measurement sensors which are located on the same circular cross section and can correspond to the first infrared distance measurement sensors in the section, and each second infrared distance measurement sensor is used for detecting the radial distance between the corresponding position of the inner wall of the steel pipe in the section and the outer surface of the first detection round rod and sending the detected radial distance information to a controller; for each section, a connecting line between the corresponding position of the outer wall detected by the first infrared distance measuring sensor and the corresponding position of the inner wall detected by the second infrared distance measuring sensor, which correspond to each other, on the section theoretically intersects with the axis of the first detection round rod, and for the first infrared distance measuring sensor and the second infrared distance measuring sensor, which correspond to each section, the controller determines the wall thickness of the corresponding position of the section according to the corresponding linear distance information and radial distance information, wherein the theoretically means that the corresponding position of the outer wall detected by the first infrared distance measuring sensor and the corresponding position of the inner wall detected by the second infrared distance measuring sensor, which correspond to each other, are assumed to be flat;
the controller determines that wall thickness measurement of the steel pipe facing to each corresponding position on one side of the baffle is completed after receiving the preset time of the linear distance information and the radial distance information, controls the first conveying device to convey the steel pipe to the right transversely for corresponding distances and controls the first conveying belt to drive the first detection round rod to move to the right for corresponding distances after determining that the wall thickness measurement of the steel pipe facing to each corresponding position on one side of the baffle is completed each time, so that other sides of the steel pipe face to the baffle in sequence, and the wall thickness of each corresponding position on other sides of the steel pipe is measured by using the first infrared distance measurement sensor array and the second infrared distance measurement sensor array.
In another alternative implementation manner, when determining the wall thickness at the corresponding position of the section according to the corresponding linear distance information and the radial distance information, the controller calculates according to the following formula:
h '═ h- (x' -x) - (y '-y) + w, wherein h' represents the actual wall thickness, h represents the theoretical wall thickness when the inner wall and the outer wall at the position corresponding to the section are both flat, x 'represents the actual linear distance, x represents the theoretical linear distance when the inner wall and the outer wall at the position corresponding to the section are both flat, y' represents the actual radial distance, y represents the theoretical radial distance when the inner wall and the outer wall at the position corresponding to the section are both flat, and w is a correction value determined according to the outer diameter of the steel pipe and the positional relationship between the first infrared distance measuring sensor and the steel pipe.
In another optional implementation manner, the first conveying device comprises a plurality of roll shafts and a first motor for controlling each roll shaft to rotate, and the controller controls the first motor to drive the roll shafts to rotate after determining that the wall thickness measurement of each corresponding position of one side, facing the baffle, of the steel pipe is completed each time, so that the roll shafts drive the steel pipe on the roll shafts to transversely convey the steel pipe to the right for a corresponding distance.
In another optional implementation manner, a first electric telescopic rod which can stretch out and draw back in the up-down direction is arranged on the first conveyor belt, a second motor is fixed on the first electric telescopic rod, the second motor is connected with the first detection round rod and used for driving the first detection round rod to rotate axially, for each section, a plurality of groups of second infrared distance measurement sensor arrays corresponding to the section are arranged on the outer surface of the first detection round rod, and each group of second infrared distance measurement sensor arrays correspond to steel pipes with different outer diameters; the first detection round rod is positioned between two left and right adjacent roll shafts;
after receiving the outer diameter parameters of the steel pipe to be measured, the controller controls the first conveying mechanism to convey, drives the first detection round rod to move left and right, controls the first electric telescopic rod to stretch according to the position relation between the current first detection round rod and the roller shaft, drives the first detection round rod to move up and down until the first detection round rod moves to the first position, and at the moment, the steel pipe penetrates into the steel pipe while being conveyed to the roller shaft below the first detection round rod, and at the moment, the first detection round rod is coaxial with the steel pipe; and controlling the second motor to rotate, and rotating a group of second infrared distance measuring sensor arrays corresponding to the outer diameter on the first detection round rod to corresponding positions so that connecting lines of the corresponding positions of the inner wall detected by each second infrared distance measuring sensor in the group of second infrared distance measuring sensor arrays and the corresponding positions of the outer wall detected by the corresponding first infrared distance measuring sensor arrays are intersected with the axis of the first detection round rod theoretically.
In another optional implementation manner, the steel pipe conveying device further comprises a second conveying device and a third conveying device, the second conveying device is arranged relative to the first conveying device, the first conveying device is located between the second conveying device and the first conveying device, the third conveying device is located on the right side of the first conveying device, the second conveying device conveys the steel pipe longitudinally to the first conveying device, the corresponding detection round rod is moved to the first position according to the outer diameter parameter of the steel pipe to be detected, so that in the process of longitudinally conveying the steel pipe from the second conveying device to the first conveying device, the axis of the steel pipe faces the axis of the corresponding detection round rod, the corresponding detection round rod is gradually inserted into the steel pipe and is coaxial with the steel pipe in the steel pipe conveying process, and the first conveying device conveys the steel pipe transversely to the right to the third conveying device, and the third conveying device conveys the steel pipe in the direction opposite to the conveying direction of the second conveying device so as to take out the corresponding detection round rod from the steel pipe.
In another optional implementation mode, the second conveyor includes the action wheel, follows the driving wheel, to the second conveyer belt and the backup pad of right side slope, the second conveyer belt is around arranging in the action wheel and from between the driving wheel, the backup pad is located the action wheel and follows between the driving wheel, and with the laminating of the upper surface of second conveyer belt, the right side of second conveyer belt is provided with the limiting plate.
In another optional implementation manner, a vertical baffle is also arranged on the right side of the first conveying device, a second conveying mechanism is further arranged on the rear side of the first conveying mechanism, a second electric telescopic rod which can stretch out and draw back in the vertical direction is arranged on a conveying belt of the second conveying mechanism, a third motor is fixed to the second electric telescopic rod, and the third motor is connected with the second detection round rod and used for driving the second detection round rod to axially rotate;
for each pair of steel pipes conveyed to the first conveying device, the controller firstly utilizes the first infrared distance measuring sensor array on the left baffle plate to measure the linear distance of the corresponding position on each section of the steel pipe, after the data required by the wall thickness measurement of each corresponding position on one side of the steel pipe facing the left baffle plate is determined to be acquired, the first conveying device is controlled to convey the steel pipe to the right in the transverse direction for the corresponding distance, the first conveying belt is controlled to drive the first detection round rod to move to the right for the corresponding distance, then the first infrared distance measuring sensor array on the right baffle plate is switched to measure the linear distance of the corresponding position on each section of the steel pipe, the second conveying mechanism and the second electric telescopic rod are controlled to act so as to move the second detection round rod to the first position, and then the second conveying device is controlled to enable the axis of the next steel pipe to face the axis of the second detection round rod, and longitudinally conveying the steel pipe to the first conveying device, and inserting the second detection round rod into the steel pipe, wherein the second detection round rod is coaxial with the steel pipe.
In another alternative implementation, the third conveyor is located below the right baffle.
In another alternative implementation manner, the distribution of the second infrared ranging sensors on the cross section of the first detection round bar is the same for each second infrared ranging sensor array arranged on the first detection round bar and corresponding to each section.
The invention has the beneficial effects that:
1. according to the invention, the wall thickness of the steel pipe is measured in the subsections, and when the wall thickness of a certain section is unqualified, the section is directly cut off by using the cutting device, so that the integral scrapping of the steel pipe due to the unqualified section can be avoided, the scrappage of the steel pipe can be reduced, and the steel pipe which is possibly scrapped can be fully utilized;
2. according to the wall thickness measuring device, the baffle is designed in the wall thickness measuring device, the first infrared distance measuring sensor corresponding to the sections is arranged on the baffle, the first detection round rod is designed, the second infrared distance measuring sensor corresponding to the first infrared distance measuring sensor is arranged on the first detection round rod, the wall thickness of the corresponding position on each section of the steel pipe can be measured according to the linear distance detected by the first infrared distance measuring sensor and the radial distance detected by the second infrared distance measuring sensor, the whole measurement is automatically completed, the measuring efficiency is higher, the wall thickness of the middle part of the steel pipe can be measured, and based on the wall thickness of each section of the steel pipe, the whole wall thickness of the steel pipe can be more accurately reflected, and the measuring accuracy of the whole wall thickness of the steel pipe is improved; in addition, the first conveying device is designed, after the wall thickness measurement on each corresponding position of one side, facing the baffle, of the steel pipe is completed, the first conveying device is controlled to transversely convey the steel pipe to the right, so that the other sides of the steel pipe face the baffle, the wall thickness measurement on each corresponding position on the circumference of each steel pipe section can be realized, the wall thickness of each section of the steel pipe can be reflected more accurately, when the wall thickness measurement on each corresponding position on the circumference of each section is carried out, the steel pipe does not need to be manually rotated, but other sides of the steel pipe face the baffle automatically, and therefore the measurement efficiency can be further improved;
3. according to the wall thickness measuring device, aiming at each section, according to steel pipes with different outer diameters, a plurality of groups of second infrared distance measuring sensor arrays corresponding to the section are arranged on the first detection round rod, and after a controller receives outer diameter parameters of the steel pipes to be measured, the controller determines which group of second infrared distance measuring sensor arrays should be used on the first detection round rod and corresponds to the first infrared distance measuring sensor arrays on the baffle plate, so that wall thickness measurement of the steel pipes with different outer diameter sizes can be realized; according to the invention, by arranging the first electric telescopic rod and the second motor, after the controller receives the outer diameter parameter of the steel pipe to be measured, the controller determines that the steel pipe is coaxial with the first detection round rod and the first position where the first detection round rod is to reach is ensured, and controls the first electric telescopic rod and the second motor, so that the first detection round rod moves to the first position, and the first detection round rod is ensured to be coaxial with the steel pipe after being inserted into the steel pipe;
4. according to the invention, the second conveying device and the third conveying device are designed in the wall thickness measuring device, so that the detection round rod can be automatically inserted into the steel pipe and coaxial with the steel pipe after being inserted, and can be automatically taken out of the steel pipe after the wall thickness measurement is finished without manual operation, thereby further improving the measurement efficiency;
5. according to the wall thickness measuring device, the baffle is arranged on the right side of the first conveying device in the wall thickness measuring device, the conveying of the next steel pipe and the detection mechanism of the first infrared distance measuring sensor array are designed, and the wall thickness measurement of the two steel pipes can be realized at the same time;
6. according to the invention, by designing the second conveying device in the wall thickness measuring device, the steel pipe and the axis of the corresponding detection round rod can be always kept in a dead-against state in the process of conveying the steel pipe from the second conveying device to the first conveying device.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of a steel pipe cutting system based on wall thickness measurements according to the present invention;
FIG. 2 is a schematic structural view of one embodiment of the wall thickness measuring device of the present invention;
FIG. 3 is a schematic diagram showing the distribution of a first array of infrared distance measuring sensors on a baffle plate in the wall thickness measuring device of the present invention;
FIG. 4 is a view of FIG. 2, taken along section B-B;
FIG. 5 is a schematic diagram showing the distribution of second infrared distance measuring sensors on a first round bar in the wall thickness measuring device according to the present invention;
FIG. 6 is a schematic view showing wall thickness measurement when the outer wall of the steel pipe of the present invention is dented;
FIG. 7 is a schematic diagram of the connection relationship between the first detecting rod and the first belt conveying mechanism in the right side view of FIG. 2;
FIG. 8 is a left side view of FIG. 7;
fig. 9 is a schematic structural view of another embodiment of the wall thickness measuring device of the present invention.
Detailed Description
In order to make the technical solutions in the embodiments of the present invention better understood and make the above objects, features and advantages of the embodiments of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the term "connected" is to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, or a communication between two elements, or may be a direct connection or an indirect connection through an intermediate medium, and a specific meaning of the term may be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a schematic structural diagram of a steel pipe cutting system based on wall thickness measurement according to an embodiment of the present invention is shown. The steel pipe cutting system based on the wall thickness measurement result can comprise a wall
According to the embodiment, the wall thickness of the steel pipe is measured in the sub-sections, and when the wall thickness of a certain section is unqualified, the section is directly cut off by using the cutting device, so that the integral scrapping of the steel pipe due to the unqualified section can be avoided, the scrappage of the steel pipe can be reduced, and the steel pipe which is possibly scrapped can be fully utilized.
Referring to fig. 2, a schematic structural diagram of an embodiment of the wall thickness measuring apparatus of the present invention is shown. The steel pipe cutting system based on the wall thickness measurement result can comprise a first conveying device 1 used for conveying a
For each section, a connecting line between the corresponding position of the outer wall detected by the first infrared
And aiming at the first infrared distance measuring sensor and the second infrared distance measuring sensor which correspond to each other on each section, the controller determines the wall thickness of the corresponding position of the section according to the corresponding linear distance information and radial distance information. Referring to fig. 6, when the outer wall and the inner wall of the
Because multiple positions of the same section are usually required to be measured when the wall thickness is measured, if the wall thickness of the steel pipe at the corresponding position of the side facing the baffle currently is only measured, the whole wall thickness state of the section cannot be reflected, therefore, after the controller receives the preset time of the linear distance information and the radial distance information, the controller determines that the wall thickness measurement of each corresponding position of the
According to the embodiment, the baffle is designed, the first infrared distance measuring sensor corresponding to the sections is arranged on the baffle, the first detection round rod is designed, the second infrared distance measuring sensor corresponding to the first infrared distance measuring sensor is arranged on the first detection round rod, the wall thickness of the corresponding position on each section of the steel pipe can be measured according to the linear distance detected by the first infrared distance measuring sensor and the radial distance detected by the second infrared distance measuring sensor, the whole measurement is automatically completed, the measurement efficiency is higher, the wall thickness of the middle part of the steel pipe can be measured, and based on the wall thickness of each section of the steel pipe, the whole wall thickness of the steel pipe can be more accurately reflected, and the measurement accuracy of the whole wall thickness of the steel pipe is improved. In addition, the first conveying device is designed, after the wall thickness measurement on each corresponding position of one side, facing the baffle, of the steel pipe is completed, the first conveying device is controlled to convey the steel pipe transversely to the right, so that the other sides of the steel pipe face the baffle, the wall thickness measurement on each corresponding position on the circumference of each steel pipe section can be realized, the wall thickness of each section of the steel pipe can be reflected more accurately, when the wall thickness measurement on each corresponding position on the circumference of each section is carried out, the steel pipe does not need to be manually rotated, but other sides of the steel pipe face the baffle automatically, and therefore the measurement efficiency can be further improved.
In order to ensure that the steel pipe can be turned over when the steel pipe is transversely conveyed rightwards by the first conveying device, and the other side faces of the steel pipe face the baffle, as shown in fig. 4, the first conveying device 1 can comprise a plurality of roller shafts 11 and first motors for controlling the rotation of the roller shafts 11, and after the controller determines that the wall thickness measurement of each corresponding position of the
In order to ensure that when steel pipes with different outer diameter sizes are measured, connecting lines of the corresponding positions of the outer wall detected by the first infrared distance measuring sensors corresponding to each other on the sections and the corresponding positions of the inner wall detected by the second infrared distance measuring sensors are kept to be intersected with the axis of the detection round bar, the invention designs the position relation of the second infrared distance measuring sensors on the detection round bar, aiming at each section, a plurality of groups of second infrared distance measuring sensor arrays corresponding to the section are arranged on the outer surface of the first detection round bar, each group of second infrared distance measuring sensor arrays correspond to the steel pipes with different outer diameters, each second infrared distance measuring sensor array arranged on each section on the first detection round bar 6 is the same in the distribution condition of the second infrared distance measuring sensors 7 on the section, and as shown in a combination of figures 4, 7 and 8, the first conveyor belt 5 is provided with a first electric telescopic rod 51 capable of extending along the up and down direction, the second motor 52 is fixed on the first electric telescopic rod 51, the second motor 52 is connected with the first detection round rod 6 and used for driving the first detection round rod 6 to axially rotate, the controller controls the first conveying mechanism to convey after receiving the outer diameter parameter of the steel pipe to be measured, the first detection round rod 6 is driven to move left and right, the first electric telescopic rod 51 is controlled to stretch according to the current position relation between the first detection round rod 6 and the roller shaft 11, the first detection round rod 6 is driven to move up and down until the first detection round rod 6 moves to a first position, so that the steel pipe 2 is conveyed to the roller shaft 11 below the first detection round rod 6, the first detection round rod 6 penetrates into the steel pipe 2, and the first detection round rod 6 is coaxial with the steel pipe 2; and controlling the second motor 52 to rotate, and rotating a group of second infrared distance measuring sensor arrays corresponding to the outer diameter on the first detection round rod 6 to corresponding positions, so that a connecting line between the corresponding position of the inner wall detected by each second infrared distance measuring sensor 7 in the group of second infrared distance measuring sensor arrays and the corresponding position of the outer wall detected by the corresponding first infrared distance measuring sensor 4 theoretically intersects with the axis of the first detection round rod. According to the invention, aiming at each section, according to steel pipes with different outer diameters, a plurality of groups of second infrared distance measuring sensor arrays corresponding to the section are arranged on the first detection round rod, and after the controller receives the outer diameter parameters of the steel pipes to be measured, the controller determines which group of second infrared distance measuring sensor arrays should be used on the first detection round rod and corresponds to the first infrared distance measuring sensor array on the baffle plate, so that the wall thickness measurement of the steel pipes with different outer diameter sizes can be realized; according to the invention, by arranging the first electric telescopic rod and the second motor, after the controller receives the outer diameter parameter of the steel pipe to be measured, the controller determines that the steel pipe is coaxial with the first detection round rod and the first position which the first detection round rod should reach is ensured, and the first electric telescopic rod and the second motor are controlled, so that the first detection round rod moves to the first position, and the first detection round rod is ensured to be coaxial with the steel pipe after being inserted into the steel pipe. In addition, if the baffle is the same as the first detection round rod, the vertical baffle is replaced by the circular baffle matched with the steel pipe, the circular baffles with different diameters matched with the steel pipe are needed to be adopted for the steel pipes with different sizes, so that the replacement operation is troublesome and the replacement cost is high.
In the above embodiment, although the automatic measurement of the wall thickness of the corresponding position of each section of the steel pipe can be realized, and the method is suitable for the wall thickness measurement of the steel pipes with different outer diameter sizes, only the wall thickness measurement of one steel pipe can be realized each time, and in order to further improve the measurement efficiency, the invention provides a scheme capable of simultaneously measuring the wall thickness of two steel pipes. Referring to fig. 9, it is a schematic structural diagram of another embodiment of the steel pipe cutting system based on wall thickness measurement according to the present invention. Fig. 9 is different from the embodiment shown in fig. 2 in that the steel pipe cutting system based on the wall thickness measurement further includes a second conveyor 8 and a third conveyor 9, the second conveyor 8 is disposed opposite to the first conveyor 5, the first conveyor 1 is disposed between the second conveyor 8 and the first conveyor 5, the third conveyor 9 is disposed at the right side of the first conveyor 1, the second conveyor 8 conveys the steel pipe longitudinally to the first conveyor 1, the corresponding detection round bar is moved to the first position according to the outer diameter parameter of the steel pipe to be measured, so that the axial center of the steel pipe 2 is aligned with the axial center of the corresponding detection round bar during the longitudinal conveyance of the steel pipe 2 from the second conveyor 8 to the first conveyor 1, the corresponding detection round bar is gradually inserted into the steel pipe 2 and is coaxial with the steel pipe 2 during the conveyance of the steel pipe 2, the first conveying device 1 conveys the steel pipe to the third conveying device 9 transversely rightwards, and the third conveying device 9 conveys the steel pipe in the direction opposite to the conveying direction of the second conveying device 8 so as to take the corresponding detection round rod out of the steel pipe. According to the invention, by designing the second conveying device and the third conveying device, the detection round rod can be automatically inserted into the steel pipe and is coaxial with the steel pipe after being inserted, and the detection round rod can be automatically taken out of the steel pipe after the wall thickness measurement is finished without manual operation, so that the measurement efficiency can be further improved.
Fig. 9 is different from the embodiment shown in fig. 2 in that a baffle 3 is also disposed on the right side of the first conveying device 1, a second conveying mechanism 10 is further disposed on the rear side of the first conveying mechanism 5, and the same as the connection relationship between the first detection round bar and the first conveying mechanism shown in fig. 7 and 8, a second electric telescopic rod capable of extending and retracting in the up-down direction is disposed on a conveying belt of the second conveying mechanism 10, and a third motor is fixed to the second electric telescopic rod and connected to the second detection round bar for driving the second detection round bar to axially rotate; for each steel pipe conveyed to the first conveying device 1, the controller firstly utilizes the first infrared distance measuring sensor array on the left baffle plate to measure the linear distance of the corresponding position on each section of the steel pipe, after the wall thickness measurement of each corresponding position on one side of the steel pipe facing the left baffle plate is determined to be finished, the first conveying device is controlled to convey the steel pipe to the right in the transverse direction for the corresponding distance, the first conveying belt is controlled to drive the first detection round rod to move to the right for the corresponding distance, then the first infrared distance measuring sensor array on the right baffle plate is switched to measure the linear distance of the corresponding position on each section of the steel pipe, the second conveying mechanism and the second electric telescopic rod are controlled to act so as to move the second detection round rod to the first position, and then the second conveying device 8 is controlled to convey the steel pipe to the first conveying device in the longitudinal direction, and inserting the second detection round rod into the steel pipe, wherein the second detection round rod is coaxial with the steel pipe. According to the invention, the baffle is arranged on the right side of the first conveying device, the conveying of the next steel pipe and the detection mechanism of the first infrared distance measurement sensor array are designed, and the wall thickness measurement of two steel pipes can be realized at the same time.
In the process that the steel pipe is conveyed from the second conveying device to the first conveying device, in order to ensure that the axis of the steel pipe can be directly opposite to the axis of the corresponding detection round rod, the second conveying device can comprise a driving wheel, a driven wheel, a second conveying belt inclining towards the right side and a supporting plate, the second conveying belt is wound between the driving wheel and the driven wheel, the supporting plate is located between the driving wheel and the driven wheel and is attached to the upper surface of the second conveying belt, and a limiting plate is arranged on the right side of the second conveying belt. According to the invention, by designing the second conveying device, the steel pipe and the axis of the corresponding detection round rod can be ensured to be always kept in a positive state in the process of conveying the steel pipe from the second conveying device to the first conveying device. In addition, the third conveying device and the right baffle are both positioned on the right side of the first conveying device, so that the third conveying device is positioned below the right baffle in order to avoid the influence of the third conveying device on the normal operation of the first infrared distance measuring sensor array on the right baffle. It should be noted that: the second round bar for detection in the embodiment shown in fig. 9 is different from the first round bar only in length, and is otherwise identical, and the first conveying mechanism and the second conveying mechanism each include a driving wheel, a driven wheel, and a conveying belt wound between the driving wheel and the driven wheel.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
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