阅读说明：本技术 一种用于电芯外观焊缝检测设备及其检测方法 (Equipment and method for detecting weld joint of appearance of battery cell ) 是由 张玉潘 陈友裕 张馨月 于 2020-06-28 设计创作，主要内容包括：本发明公开了一种用于电芯外观焊缝检测设备,包括：底架电控组件,主要起支撑作用和用于安装电控部件；拍摄组件,设置在底架电控组件上方,用于对电芯进行拍照检测；顶升机构,设置在拍摄组件下方,用于推动电芯上下往复移动,进行检测；安全外罩,设置在底架电控组件上方,且拍摄组件和顶升机构处于安全外罩内部,确保检测生产的安全性和检测的准确性；左右移动组件带动前后移动组件左右移动,前后移动组件带动2D检测组件和3D检测组件前后移动,3D检测组件检测电芯焊疤立体结构尺寸,2D检测组件检测电芯焊疤平面色泽,实现对电芯上表面焊疤进行自动扫描检测,实现自动化检测代替人工操作。(The invention discloses a device for detecting appearance weld joints of a battery cell, which comprises: the chassis electric control assembly mainly plays a supporting role and is used for installing an electric control component; the shooting assembly is arranged above the underframe electric control assembly and used for shooting and detecting the battery cell; the jacking mechanism is arranged below the shooting assembly and used for pushing the battery cell to move up and down in a reciprocating manner so as to perform detection; the safety outer cover is arranged above the underframe electric control assembly, and the shooting assembly and the jacking mechanism are positioned in the safety outer cover, so that the safety of detection production and the accuracy of detection are ensured; the left and right movement component drives the front and back movement component to move left and right, the front and back movement component drives the 2D detection component and the 3D detection component to move front and back, the 3D detection component detects the size of the three-dimensional structure of the battery cell welding scar, the 2D detection component detects the plane color of the battery cell welding scar, automatic scanning detection of the battery cell upper surface welding scar is achieved, and manual operation is replaced by automatic detection.)

1. The equipment for detecting the weld joint on the appearance of the battery cell is characterized in that the equipment comprises a welding head, a welding head and a welding head; the method comprises the following steps:

the chassis electric control assembly (1) mainly plays a supporting role and is used for installing an electric control component;

the shooting assembly (2) is arranged above the underframe electric control assembly (1) and is used for shooting and detecting the battery cell;

the jacking mechanism (3) is arranged below the shooting assembly (2) and used for pushing the battery core to move up and down in a reciprocating manner to perform detection;

the safety outer cover (4) is arranged above the underframe electric control assembly (1), and the shooting assembly (2) and the jacking mechanism (3) are positioned in the safety outer cover (4), so that the safety of detection production and the accuracy of detection are ensured;

the chassis electrical control assembly (1) comprises: the battery detection device comprises a connecting frame (11), a first electric control frame (12), a second electric control frame (13) and a large plate (14), wherein a conveying line for conveying detection battery cells penetrates through the middle of the connecting frame (11), one side of the connecting frame (11) is connected with the first electric control frame (12), the other side of the connecting frame (11) is connected with the second electric control frame (13), and the large plate (14) is arranged above the connecting frame (11), the first electric control frame (12) and the second electric control frame (13); a shooting assembly (2) is arranged above the large plate (14), and a jacking mechanism (3) is arranged below the large plate (14);

the camera assembly (2) comprises: the battery cell detection system comprises a plug-in detection (21) and a scanning assembly (22), wherein the plug-in detection (21) is arranged at the upper right of a large plate (14) and used for identifying the product number of the battery cell, and the scanning assembly (22) is arranged at the upper left of the large plate (14) and used for carrying out photo-taking detection on the battery cell detected by the plug-in detection (21);

the jacking mechanism (3) comprises: jacking chassis (31), block subassembly (32), jacking subassembly (33) and hinder back mechanism (34), jacking chassis (31) are connected with big board (14), block subassembly (32) and set up the left side at jacking chassis (31), and jacking subassembly (33) set up in the centre of jacking chassis (31), hinder back mechanism (34) and set up the right side at jacking chassis (31).

2. The apparatus for detecting weld seam on appearance of battery cell according to claim 1, wherein; the plug-in detection (21) comprises: the adjusting component (211) is connected with the large plate (14), and the code reader (212) is connected with the adjusting component (211).

3. The apparatus for detecting weld seam on appearance of battery cell according to claim 1, wherein; the scanning assembly (22) comprises: the device comprises a left-right moving component (221), a moving connecting plate (222), a front-back moving component (223), a 2D detection component (224) and a 3D detection component (225), wherein the left-right moving component (221) is connected with a large plate (14), the moving connecting plate (222) is connected with the left-right moving component (221), the front-back moving component (223) is arranged above the moving connecting plate (222), and the 2D detection component (224) and the 3D detection component (225) are connected with the front-back moving component (223).

4. The apparatus for detecting weld seam on appearance of battery cell according to claim 1, wherein; the barrier assembly (32) comprises: the jacking device comprises a blocking block (321) and a blocking handle (322), wherein the blocking block (321) is connected with the jacking assembly (33), and the blocking handle (322) is arranged above the blocking block (321).

5. The apparatus for detecting weld seam on appearance of battery cell according to claim 1, wherein; the jacking assembly (33) comprises: the lifting device comprises a lifting cylinder, a lifting plate (331) and a lifting jig (332), wherein the lifting plate (331) is movably arranged above the lifting underframe (31), the output end of the lifting cylinder is connected with the lifting plate (331), and the lifting jig (332) is arranged above the lifting plate (331).

6. The apparatus for detecting weld seam on appearance of battery cell according to claim 1, wherein; the block-back mechanism (34) comprises: the jacking device comprises a blocking-back base (341), a blocking-back support block (342) and a blocking-back block (343), wherein the blocking-back base (341) is connected with the jacking underframe (31), the blocking-back support block (342) is arranged above the blocking-back base (341), and the blocking-back block (343) is arranged above the blocking-back support block (342).

7. The apparatus for detecting weld seam on appearance of battery cell according to claim 1, wherein; a first cooling fan (121) is arranged in front of the first electric control frame (12), and a second cooling fan (131) is arranged in front of the second electric control frame (13).

8. The apparatus for detecting weld seam on appearance of battery cell according to claim 1, wherein; the connecting frame (11) is formed by splicing sectional materials, a PLC (programmable logic controller) and a driver are arranged in the first electric control frame (12), a computer host, a light source controller and an upper computer are arranged in the second electric control frame (13), and a hollow through groove is formed in the middle of the large plate (14).

Technical Field

The invention relates to the technical field of battery cell weld scar detection, in particular to a device and a method for detecting appearance weld seams of a battery cell.

Background

On the existing market, the new energy products such as mobile phones and automobiles have larger and larger demand for electric cores and batteries, and the requirement for quality is higher and higher, so that the appearance, the size and the like of the products need to be detected, however, the arc of the crater is convex, the manual detection is inconvenient, the manual detection is easy to miss, the automatic detection equipment is urgently needed, and therefore, the design is used for the electric core appearance welding line detection equipment.

Disclosure of Invention

The invention aims to provide equipment and a method for detecting weld joints on the appearance of a battery cell, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a device for detecting weld seam on appearance of battery cell, comprising: the chassis electric control assembly mainly plays a supporting role and is used for installing an electric control component;

the shooting assembly is arranged above the underframe electric control assembly and used for shooting and detecting the battery cell;

the jacking mechanism is arranged below the shooting assembly and used for pushing the battery cell to move up and down in a reciprocating manner so as to perform detection;

the safety outer cover is arranged above the underframe electric control assembly, and the shooting assembly and the jacking mechanism are positioned in the safety outer cover, so that the safety of detection production and the accuracy of detection are ensured;

the chassis electrical control assembly includes: the device comprises a connecting frame, a first electric control frame, a second electric control frame and a large plate, wherein a conveying line for conveying a detection cell penetrates through the middle of the connecting frame, one side of the connecting frame is connected with the first electric control frame, the other side of the connecting frame is connected with the second electric control frame, and the large plate is arranged above the connecting frame, the first electric control frame and the second electric control frame; a shooting assembly is arranged above the large plate, and a jacking mechanism is arranged below the large plate;

the shooting assembly comprises: the plug-in detection and scanning assembly is arranged on the upper right side of the large plate and used for identifying the product number of the battery cell, and the scanning assembly is arranged on the upper left side of the large plate and used for photographing and detecting the battery cell after the plug-in detection;

the climbing mechanism includes: jacking chassis, stopping subassembly, jacking subassembly and hinder and return the mechanism, jacking chassis is connected with the big board, stops the subassembly and sets up in the left side of jacking chassis, and the jacking subassembly sets up in the centre of jacking chassis, hinders back the mechanism setting on the right side of jacking chassis.

Further, the plug-in detection includes: the adjusting component is connected with the large plate, and the code reader is connected with the adjusting component.

Further, the scanning assembly includes: the device comprises a left-right moving assembly, a moving connecting plate, a front-back moving assembly, a 2D detecting assembly and a 3D detecting assembly, wherein the left-right moving assembly is connected with a large plate, the moving connecting plate is connected with the left-right moving assembly, the front-back moving assembly is arranged above the moving connecting plate, and the 2D detecting assembly and the 3D detecting assembly are connected with the front-back moving assembly.

Further, the blocking assembly includes: block the piece and block the handle, block the piece and be connected with jacking subassembly, block the handle setting and block the piece top.

Further, the jacking subassembly includes: jacking cylinder, jacking board and jacking tool, the mobilizable setting of jacking board is in jacking chassis top, and the output of jacking cylinder is connected with the jacking board, and the jacking tool setting is in the jacking board top.

Further, the retraction mechanism comprises: hinder back the base, hinder back a piece and hinder back the piece, hinder back the base and be connected with the jacking chassis, hinder back a piece setting and hinder back a base top, hinder back a piece setting and hinder back a piece top.

Furthermore, a first cooling fan is arranged in front of the first electric control frame, and a second cooling fan is arranged in front of the second electric control frame.

Further, the link adopts the section bar concatenation to form, be equipped with PLC controller and driver in the first automatically controlled frame, be equipped with host computer, light source controller and host computer in the second automatically controlled frame, be equipped with the logical groove of fretwork in the middle of the big board.

Furthermore, an alarm lamp is arranged above the safety outer cover, and a human-machine operation interface and an operation button are arranged on the front side face of the safety outer cover.

A method for detecting weld joints on the appearance of a battery cell comprises the following steps:

s1, conveying the battery cell to be detected to an equipment feeding end by a conveying line, identifying the product number of the battery cell by a code reader, feeding identification information back to a computer host, and verifying detection information by an MES (manufacturing execution system) in the computer host;

s2, if the MES system verifies that the battery cell is not a product to be detected, when the battery cell moves along with the conveying line into the connecting frame, the shooting assembly and the jacking mechanism do not act, and the battery cell is not detected;

s3, if the MES system verifies that the product to be detected is obtained, the MES system verifies that the information is fed back to the PLC, and when the battery cell moves along with the conveying line to enter the connecting frame, the MES system automatically triggers the shooting assembly and the jacking mechanism to act, so that the battery cell is detected;

s4, when the battery cell is detected, the jacking cylinder acts firstly to jack up the battery cell from the conveying line; the jacking cylinder acts to push the jacking plate to move upwards and drive the blocking handle to move upwards so as to intercept the battery cell on the conveying line, and the jacking jig is driven to move upwards so as to push the battery cell to move upwards so as to facilitate the scanning component to perform scanning detection;

s5, after the battery cell is jacked up, the scanning assembly acts; the left-right movement component moves to drive the front-back movement component to move left and right, the front-back movement component moves to drive the 2D detection component and the 3D detection component to move front and back, the 3D detection component detects the three-dimensional structure size of the battery cell crater, and the 2D detection component detects the plane color of the battery cell crater to realize the scanning detection of the battery cell upper surface crater;

s6, after the detection of the scanning assembly is completed, the detection information is transmitted to the MES system, the jacking mechanism moves reversely, the battery cell is placed on the conveying line, the battery cell moves outwards along with the conveying line, and the MES system calculates whether the corresponding battery cell is qualified or not through an algorithm, so that the detection of the crater on the upper surface of the battery cell is completed.

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. the safety outer cover is arranged above the underframe electric control assembly, the shooting assembly and the jacking mechanism are positioned in the safety outer cover, so that the safety of detection production and the accuracy of detection are ensured, and the safety outer cover can avoid the influence of dust on the sensor and the shooting lens, so that the accuracy of detection can be ensured;

2. a first cooling fan is arranged in front of the first electric control frame and used for cooling the interior of the first electric control frame in an air cooling manner, so that the service lives of a PLC (programmable logic controller) and a driver in the first electric control frame are prolonged; a second heat radiation fan is arranged in front of the second electric control frame and used for performing air cooling heat radiation on the inside of the second electric control frame, so that the service lives of a computer host, a light source controller and an upper computer in the second electric control frame are prolonged;

3. the left-right moving assembly drives the front-back moving assembly to move left and right, the front-back moving assembly drives the 2D detecting assembly and the 3D detecting assembly to move front and back, the 3D detecting assembly detects the three-dimensional structure size of the battery cell crater, the 2D detecting assembly detects the plane color of the battery cell crater, automatic scanning detection of the battery cell upper surface crater is achieved, and manual operation is replaced by automatic detection;

4. the detection station of the 2D detection assembly reduces hardware investment through the modes of visual field public and image cutting, improves the detection beat of the 2D detection assembly station, and meets the detection requirement. In the aspect of 2D detection assembly image acquisition, the defects on the surface of the same product are acquired in a multi-band and multi-layer mode through the multi-functional light source, and the defect detection is realized more accurately and stably by combining various visual algorithms; the 2D detection assembly achieves detection accuracy in a pixel splicing mode by using 2 lower pixel camera (1200 w) stations under the condition of meeting 12ppm (12 products in 1 minute) production beat.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the electronic control assembly of the chassis of the present invention;

FIG. 3 is a schematic view of a camera module according to the present invention;

fig. 4 is a schematic structural diagram of a jacking mechanism of the present invention.

Description of the labeling: an underframe electric control assembly 1; a shooting component 2; a jacking mechanism 3; a safety housing 4; a connecting frame 11; a first electrical control rack 12; a second electric control rack 13; a large plate 14; a first heat dissipation fan 121; a second heat dissipation fan 131; a plug-in detection 21; a scanning assembly 22; the adjustment assembly 211; a code reader 212; a left-right movement assembly 221; the moving connecting plate 222; a forward and backward movement assembly 223; a 2D detection component 224; a 3D detection component 225; a jacking underframe 31; a barrier assembly 32; a jacking assembly 33; a resistance-return mechanism 34; the stopper 321; a blocking handle 322; a lifting plate 331; a jacking jig 332; a block back base 341; block back the branch block 342; a block 343; an alarm lamp 41; a human-machine interface 42; the button 43 is operated.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 to 4; a device for detecting weld seam on appearance of battery cell, comprising:

the chassis electric control assembly 1 mainly plays a supporting role and is used for installing an electric control component;

the shooting assembly 2 is arranged above the underframe electric control assembly 1 and used for shooting and detecting the battery cell;

the jacking mechanism 3 is arranged below the shooting assembly 2 and used for pushing the battery core to move up and down in a reciprocating manner so as to facilitate the shooting assembly 2 to carry out shooting detection;

the safety outer cover 4 is arranged above the underframe electric control assembly 1, the shooting assembly 2 and the jacking mechanism 3 are positioned in the safety outer cover 4, the safety of detection production and the accuracy of detection are ensured, and the safety outer cover 4 can avoid the influence of dust on the sensor and the shooting lens, so that the accuracy of detection can be ensured;

the chassis electric control assembly 1 includes: the battery detection device comprises a connecting frame 11, a first electric control frame 12, a second electric control frame 13 and a large plate 14, wherein a conveying line for conveying detection battery cells penetrates through the middle of the connecting frame 11, one side of the connecting frame 11 is connected with the first electric control frame 12, the other side of the connecting frame 11 is connected with the second electric control frame 13, and the large plate 14 is arranged above the connecting frame 11, the first electric control frame 12 and the second electric control frame 13; the shooting assembly 2 is arranged above the large plate 14, and the jacking mechanism 3 is arranged below the large plate 14; the connecting frame 11 is formed by splicing sectional materials, so that the whole connecting frame 11 can be quickly and conveniently spliced; a first heat dissipation fan 121 is arranged in front of the first electronic control frame 12, the first heat dissipation fan 121 is used for performing air cooling heat dissipation on the interior of the first electronic control frame 12, a second heat dissipation fan 131 is arranged in front of the second electronic control frame 13, and the second heat dissipation fan 131 is used for performing air cooling heat dissipation on the interior of the second electronic control frame 13; a PLC controller and a driver are arranged in the first electric control frame 12, the PLC controller is respectively connected with the jacking mechanism 3 and the shooting assembly 2 and used for driving the jacking mechanism 3 and the shooting assembly 2 to move, and the driver is connected with the shooting assembly 2 and used for driving the camera to work; a computer host, a light source controller and an upper computer are arranged in the second electric control frame 13, and an MES system is arranged in the computer host and used for verifying detection information; the light source controller is used for providing a bright environment for the shooting of the camera; a hollow through groove is formed in the middle of the large plate 14, and the jacking mechanism 3 can jack up the battery cell upwards to penetrate through the through groove so as to facilitate photographing detection of the photographing assembly 2; specifically, the PLC controller, the driver, the computer host, the light source controller, and the upper computer are known components, and therefore, detailed descriptions thereof will not be provided.

The photographing assembly 2 includes: the battery cell detection system comprises a plug-in detection 21 and a scanning assembly 22, wherein the plug-in detection 21 is arranged at the upper right of the large plate 14 and used for identifying the product number of the battery cell, and the scanning assembly 22 is arranged at the upper left of the large plate 14 and used for carrying out photographing detection on the battery cell detected by the plug-in detection 21; the plug-in detection 21 includes: the adjusting assembly 211 is connected with the large plate 14, the code reader 212 is connected with the adjusting assembly 211, and the code reader 212 is used for identifying the number of the battery cell product conveyed by the conveying line and performing primary identification on the product; the scanning assembly 22 includes: the device comprises a left-right moving component 221, a moving connecting plate 222, a front-back moving component 223, a 2D detection component 224 and a 3D detection component 225, wherein the left-right moving component 221 is connected with the large plate 14, the moving connecting plate 222 is connected with the left-right moving component 221, the front-back moving component 223 is arranged above the moving connecting plate 222, and the 2D detection component 224 and the 3D detection component 225 are connected with the front-back moving component 223; the left-right movement component 221 drives the front-back movement component 223 to move left and right, the front-back movement component 223 drives the 2D detection component 224 and the 3D detection component 225 to move front and back, the 3D detection component 225 detects the size of the three-dimensional structure of the battery cell crater, and the 2D detection component 224 detects the plane color of the battery cell crater, so that the battery cell upper surface crater is scanned and detected.

The climbing mechanism 3 includes: the jacking device comprises a jacking underframe 31, a blocking assembly 32, a jacking assembly 33 and a blocking mechanism 34, wherein the jacking underframe 31 is connected with a large plate 14, the blocking assembly 32 is arranged on the left side of the jacking underframe 31, the jacking assembly 33 is arranged in the middle of the jacking underframe 31, and the blocking mechanism 34 is arranged on the right side of the jacking underframe 31; the barrier assembly 32 includes: the stopping block 321 is connected with the jacking assembly 33, and the stopping handle 322 is arranged above the stopping block 321; the jacking assembly 33 comprises: the lifting device comprises a lifting cylinder, a lifting plate 331 and a lifting jig 332, wherein the lifting plate 331 is movably arranged above the lifting underframe 31, the output end of the lifting cylinder is connected with the lifting plate 331, and the lifting jig 332 is arranged above the lifting plate 331; the retraction mechanism 34 includes: the jacking device comprises a blocking base 341, a blocking support block 342 and a blocking block 343, wherein the blocking base 341 is connected with the jacking underframe 31, the blocking support block 342 is arranged above the blocking base 341, and the blocking block 343 is arranged above the blocking support block 342; the jacking cylinder acts to drive the jacking plate 331 to move upwards, and then the handle 322 can be driven to move upwards, so that the battery core is moved along the conveying line to be intercepted, and meanwhile, the jacking jig 332 upwards supports the battery core, so that the battery core is detected by the shooting assembly 2.

An alarm lamp 41 is arranged above the safety outer cover 4, and when the equipment fails in operation, the alarm lamp 41 can flash to light to remind an operator of the failure; the front side surface of the safety outer cover 4 is provided with a man-machine operation interface 42 and operation buttons 43, equipment can be regulated and controlled through the man-machine operation interface, and the operation buttons 43 specifically comprise buttons for starting, stopping, scramming and the like.

A method for detecting weld joints on the appearance of a battery cell comprises the following steps:

s1, conveying the battery cell to be detected to an equipment feeding end by a conveying line, identifying the product number of the battery cell by the code reader 212, feeding identification information back to the computer host, and verifying detection information by an MES (manufacturing execution system) in the computer host;

s2, if the MES system verifies that the battery cell is not a product to be detected, when the battery cell moves along with the conveying line into the connecting frame 11, the shooting assembly 2 and the jacking mechanism 3 do not act, and the battery cell is not detected;

s3, if the MES system verifies that the product to be detected is obtained, the MES system verifies that the information is fed back to the PLC, and when the battery cell moves along with the conveying line to enter the connecting frame 11, the shooting assembly 2 and the jacking mechanism 3 are automatically triggered to act to detect the battery cell;

s4, when the battery cell is detected, the jacking cylinder acts firstly to jack up the battery cell from the conveying line; the jacking cylinder acts to push the jacking plate 331 to move upwards, so as to drive the blocking handle 322 to move upwards, so that the battery cell on the conveying line is intercepted, and the jacking jig 332 is driven to move upwards, so as to push the battery cell to move upwards, so that the scanning assembly 22 can perform scanning detection;

s5, after the battery cell is jacked up, the scanning assembly 22 acts; the left-right movement component 221 moves to drive the front-back movement component 223 to move left and right, the front-back movement component 223 moves to drive the 2D detection component 224 and the 3D detection component 225 to move front and back, the 3D detection component 225 detects the three-dimensional structure size of the battery cell crater, and the 2D detection component 224 detects the plane color of the battery cell crater to realize the scanning detection of the battery cell upper surface crater;

s6, after the detection of the scanning assembly 22 is completed, the detection information is transmitted to the MES system, the jacking mechanism 3 acts reversely, the battery cell is placed on the conveying line, the battery cell moves outwards along with the conveying line, and the MES system calculates whether the corresponding battery cell is qualified or not through an algorithm, so that the detection of the crater on the upper surface of the battery cell is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.