Automatic fastening test machine for test head

Abstract

The present invention discloses an automatic snap-fit ​​testing machine for test heads, comprising a machine platform, wherein the upper end of the machine platform is provided with a plurality of test platform mechanisms at intervals, a snap-fit ​​mechanism for positioning and snapping the product terminals on each test platform mechanism in turn, a product conveyor line, and a transport robot for transporting products from the product conveyor line to the test platform mechanism. Each time a product is placed on the test platform mechanism, the snap-fit ​​mechanism will move to the corresponding position to snap-fit ​​the product terminals on the test platform mechanism. The present invention adopts a snap-fit ​​mechanism to snap-fit ​​the terminals of the products of multiple test platform mechanisms in turn. After the snap-fit ​​mechanism completes the snap-fitting of the terminals of the test platform mechanism at one station with the test head, the snap-fit ​​mechanism can move to the position of another test platform mechanism to snap-fit ​​during the time interval of the test head power-on test. This design of the present invention can make the mechanical structure more compact and reasonable.

Description

Technical Field

[0001] The present invention relates to lithium battery testing equipment, in particular to an automatic buckle tester for a test head. Background Art

[0002] During the lithium battery production process, parameters such as open-circuit voltage, AC internal resistance, and case voltage need to be measured. Current testing equipment is mostly manual, single-station testing, which is inefficient and complex to operate. Therefore, there is a need to improve overall testing efficiency. Summary of the Invention

[0003] The object of the present invention is to provide a test head automatic fastening tester in view of the above-mentioned defects in the prior art.

[0004] In order to solve the above-mentioned defects of the prior art, the technical solution provided by the present invention is: a test head automatic buckle test machine, comprising a machine platform, wherein the upper end of the machine platform is provided with a plurality of test platform mechanisms at intervals, a gusset mechanism for positioning and gusseting the product terminals on each of the test platform mechanisms in turn, a product conveyor line, and a transport robot for transporting products from the product conveyor line to the test platform mechanism. Each time a product is placed on the test platform mechanism, the gusset mechanism will move to the corresponding position to gusset the product terminals on the test platform mechanism.

[0005] The test platform mechanism includes a product positioning platform mechanism and a test head pressing mechanism, and the test head pressing mechanism has a test head adsorbed by an electromagnet; the buckle plate mechanism includes a moving control module, a test head clamping buckle plate mechanism and a camera positioning mechanism that are controlled by the moving control module to move simultaneously, and the qualified product transported by the transport robot is transported to the product positioning platform mechanism to position the product, and the moving control module controls the test head clamping buckle plate mechanism to move to the test head pressing mechanism to clamp the test head, and when the test head clamping buckle plate mechanism clamps the test head, the test head pressing mechanism disconnects from the test head, and the camera positioning mechanism takes pictures of the terminal position of the product and the position of the test head respectively to determine the position, and the moving control module controls the test head clamping buckle plate mechanism to move to a position that is buckled with the product terminal, and adjusts the position according to the terminal position information fed back by the camera positioning mechanism. After the test head is buckled with the terminal, the test head is pressed by the test head pressing mechanism and powered on for testing.

[0006] As an improvement of the automatic snap-fit ​​testing machine for the test head of the present invention, the product positioning platform mechanism includes a battery positioning platform and a battery terminal adsorption positioning platform, the battery terminal adsorption positioning platform is located on one side of the battery positioning platform, and a terminal adsorption boss is provided on one side of the battery terminal adsorption positioning platform, and a protective silicone pad is provided on one side of the terminal adsorption boss. The battery terminal rests on the silicone pad on one side of the terminal adsorption boss, and a clamping cylinder is provided on the battery terminal adsorption positioning platform. The two clamping jaws of the clamping jaw cylinder are respectively clamped at the upper and lower ends of the silicone pad, and both clamping jaws will not touch the terminal. A vacuum air duct is provided in the battery terminal adsorption positioning platform, and the vacuum air duct passes through the terminal adsorption boss. An air duct hole is provided on the silicone pad, and the air duct hole is connected to the vacuum air duct.

[0007] As an improvement of the automatic snap-fit ​​testing machine for the test head of the present invention, the product positioning platform mechanism also includes a Y-direction terminal positioning mechanism, and the Y-direction terminal positioning mechanism includes a Y-direction positioning cylinder and a bearing positioning block. The bearing positioning block is located above the Y-direction positioning cylinder, and a bearing is provided on the front side of the bearing positioning block. An elastic positioning rod is provided on the piston rod of the Y-direction positioning cylinder. The Y-direction positioning cylinder controls the elastic positioning rod to press against the corner of the top sub-connecting plate, and the elastic positioning rod will contact the bearing when it moves; when the elastic positioning rod moves to the bearing position, the elastic positioning rod will tilt forward, and when the elastic positioning rod is disengaged from the bearing, the elastic positioning rod will reset backward under the action of the spring and can press against the corner of the top sub-connecting plate.

[0008] As an improvement to the automatic fastening tester for test heads of the present invention, the test head pressing mechanism includes a motor movement control module and a test head mounting plate whose movement is controlled by the motor movement control module. An electromagnet mounting seat is provided at the end of the test head mounting plate. An electromagnet is provided on one side of the electromagnet mounting seat. When the electromagnet is energized, it can attract the test head.

[0009] When the test head clamping plate mechanism clamps the test head, the electromagnet is in the power-off state; when the test head pressing mechanism presses the test head, the electromagnet is in the power-on state; after the battery function test is completed, the test head pressing mechanism drives the test head to detach from the terminal, and the handling robot transports the tested battery to the product delivery line for delivery.

[0010] As an improvement to the automatic snap-fit ​​testing machine for the test head of the present invention, the test head includes a mounting plate, an electromagnet connecting seat is provided on one side of the mounting plate, a terminal docking plate is provided on the other side of the mounting plate, a cover plate is covered on the terminal docking plate, a spring is provided between the cover plate and the terminal docking plate, a terminal snap-fit ​​seat is provided on the middle part of the outer side of the cover plate, and the cover plate can be movably connected to the terminal docking plate through a guide column.

[0011] As an improvement of the automatic buckle testing machine for the test head of the present invention, the test head clamping plate mechanism includes a Y-axis linear motor control module, a Z-axis linear motor module controlled to move forward and backward by the Y-axis linear motor control module, and a test head clamping cylinder mounting seat controlled to move up and down by the Z-axis linear motor module, and a test head clamping cylinder mounting seat is provided with a test head clamping cylinder.

[0012] As an improvement to the automatic fastening tester for the test head of the present invention, the camera positioning mechanism includes a camera Y-axis linear motor control module, which controls the movement of a camera mounting plate on which a camera is provided;

[0013] After the test head clamping plate mechanism grabs the test head, the camera positioning mechanism controls the camera to move to a position between the battery terminal and the test head, and takes pictures of the position of the battery terminal and the test head.

[0014] As an improvement of the automatic buckle testing machine for the test head of the present invention, the camera positioning mechanism and the test head clamping plate mechanism are both fixedly mounted on a movable plate, and the movable control module includes a servo motor, a transmission screw, a linear guide rail and a linear slider. The servo motor controls the transmission of the transmission screw, and the transmission screw is connected to the movable plate through a screw nut, and the movable plate is connected to the linear slide rail through the linear slider.

[0015] As an improvement to the automatic fastening test machine of the test head of the present invention, it also includes a QR code scanning device. The transport robot transports the product from the product conveyor line to the QR code scanning device to scan the product to confirm whether it is a good product. If the scan confirms that the product is a defective product, the transport robot transports the product to the defective product conveyor line for delivery.

[0016] As an improvement to the automatic buckle test machine for the test head of the present invention, a plurality of the test platform mechanisms are spaced apart on both sides of the upper end of the machine, and two buckle plate mechanisms are provided. One buckle plate mechanism takes turns cooperating with the plurality of the test platform mechanisms on one side to buckle the terminals of the product, and the other buckle plate mechanism takes turns cooperating with the plurality of the test platform mechanisms on the other side to buckle the terminals of the product.

[0017] Compared with the existing technology, the advantages of the present invention are: the present invention uses a pinch plate mechanism to perform terminal pinch plate on products of multiple test platform mechanisms in turn. After the pinch plate mechanism completes pinch plate between the terminals of the test platform mechanism at one station and the test head, during the time interval when the test head is powered on for testing, the pinch plate mechanism can move to the position of another test platform mechanism to perform pinch plate action, and a transport robot is used to transport products to each test platform mechanism in turn for testing. This design of the present invention can reduce the complexity of the machinery, reduce the number of mechanism settings, and can set up multiple products side by side as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention and its beneficial technical effects are further described in detail below based on the accompanying drawings and specific embodiments, wherein:

[0019] Figure 1 It is a schematic diagram of a three-dimensional structure in which multiple devices of the present invention are arranged.

[0020] Figure 2 It is a top view of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the test platform mechanism of the present invention.

[0022] Figure 4 It is a top view of the test platform mechanism of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning platform mechanism of the product of the present invention.

[0024] Figure 6 It is a three-dimensional diagram of the gusset plate mechanism of the present invention.

[0025] Figure 7 It is a three-dimensional diagram of the test head of the present invention.

[0026] Figure 8 It is a schematic diagram of the internal structure of the test head of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described below based on the accompanying drawings and specific examples, but the embodiments of the present invention are not limited thereto.

[0028] like Figures 1 to 8As shown, a test head automatic buckle test machine includes a machine 1, and a plurality of test platform mechanisms 2 are spaced apart at the upper end of the machine 1, a buckle plate mechanism 3 for positioning and buckling the product terminals 100 on each test platform mechanism 2 in turn, a product conveyor line 4 and a transport robot 5 for transporting products from the product conveyor line 4 to the test platform mechanism 2. Each time a product 200 is placed on the test platform mechanism 2, the buckle plate mechanism 3 will move to the corresponding position to buckle the product terminals 100 on the test platform mechanism 2, so that the product terminals are buckled with the test head.

[0029] The test platform mechanism 2 includes a product positioning platform mechanism 21 and a test head pressing mechanism 22. The test head pressing mechanism 22 is adsorbed with a test head 6 by an electromagnet 23; the pinch plate mechanism 3 includes a movement control module 31, a test head clamping pinch plate mechanism 32 and a camera positioning mechanism 33 that are moved simultaneously by the movement control module 31. The qualified product carried by the transport manipulator 5 is transported to the product positioning platform mechanism 2 to position the product (lithium battery). The movement control module 31 controls the test head clamping pinch plate mechanism 32 to move to the test head pressing mechanism 22 to clamp the test head 6. When the test head clamping pinch plate mechanism 32 clamps the test head 6, the test head pressing mechanism 22 is disconnected from the test head 6 (electromagnetic When the iron loses its magnetism after being powered off, the test head 6 can easily separate the electromagnet 23). The camera positioning mechanism 33 takes photos of the terminal position of the product and the position of the test head 6 to determine the position. The mobile control module 31 controls the test head clamping plate mechanism 32 to move to the position where it engages with the product terminal 100, and adjusts the position according to the terminal position information fed back by the camera positioning mechanism 33. After the test head 6 engages with the product terminal 100, the test head pressing mechanism 22 presses the test head 6 and powers on for testing. After the test head 6 is powered on and the product is tested, it is adsorbed and taken away by the electromagnet 23 on the test head pressing mechanism 22. The tested lithium battery is transported by the handling robot 5 to the qualified product conveyor line for delivery. During the power-on test of the test head 6, the plate mechanism 3 will move to the position of other test platform mechanisms 2 to perform the plate action.

[0030] Preferably, the product positioning platform mechanism 21 includes a battery positioning platform 211 and a battery terminal adsorption positioning platform 212. The battery terminal adsorption positioning platform 212 is located on one side of the battery positioning platform 211. A terminal adsorption boss 213 is provided on one side of the battery terminal adsorption positioning platform 212. A protective silicone pad 214 is provided on one side of the terminal adsorption boss 213. The battery terminal rests on the silicone pad 214 on one side of the terminal adsorption boss 213. A clamping cylinder 215 is provided on the battery terminal adsorption positioning platform 212. The two clamping claws 216 of the clamping claw cylinder 215 are respectively clamped at the upper and lower ends of the silicone pad 214. Both clamping claws 216 will not touch the terminal. A vacuum air duct (not shown) is provided in the battery terminal adsorption positioning platform 212. The vacuum air duct passes through the terminal adsorption boss 213. An air duct hole is provided on the silicone pad 214, and the air duct hole is connected to the vacuum air duct.

[0031] Preferably, the product positioning platform mechanism 21 also includes a Y-direction terminal positioning mechanism 217, which includes a Y-direction positioning cylinder 2171 and a bearing positioning block 2172. The bearing positioning block 2172 is located above the Y-direction positioning cylinder 2171, and a bearing 2173 is provided on the front side of the bearing positioning block 2172. An elastic positioning rod 2174 is provided on the piston rod of the Y-direction positioning cylinder 2171. The Y-direction positioning cylinder 2171 controls the elastic positioning rod 2174 to press against the corner of the top sub-connecting plate, and the elastic positioning rod 2174 will contact the bearing 2173 when it moves; when the elastic positioning rod 2174 moves to the position of the bearing 2173, the elastic positioning rod 2174 will tilt forward, and when the elastic positioning rod 2174 disengages from the bearing 2173, the elastic positioning rod 2174 is reset backward by the action of the spring and can press against the corner of the top sub-connecting plate.

[0032] Preferably, the test head pressing mechanism 22 includes a motor movement control module 221, a test head mounting plate 222 controlled by the motor movement control module 221, an electromagnet mounting seat 223 is provided at the end of the test head mounting plate 222, and an electromagnet 23 is provided on one side of the electromagnet mounting seat 223. When the electromagnet 23 is energized, it can attract the test head 6;

[0033] The motor movement control module 221 includes a motor and a lead screw. The motor controls the lead screw transmission, and the lead screw is connected to the test head mounting plate 222 through a lead screw nut.

[0034] When the test head clamping plate mechanism 32 clamps the test head 6, the electromagnet 23 is in the power-off state. When the test head pressing mechanism 22 presses the test head 6, the electromagnet 23 is in the power-on state. After the battery function test is completed, the test head pressing mechanism 22 drives the test head 6 to separate from the product terminal 100, and the transport robot 5 transports the tested battery to the product delivery line 300 for delivery.

[0035] Preferably, the test head 6 includes a mounting plate 61, an electromagnet connecting seat 62 is provided on one side of the mounting plate 61, a terminal docking plate 63 is provided on the other side of the mounting plate 61, a cover plate 64 is covered on the terminal docking plate 63, a spring 65 is provided between the cover plate 64 and the terminal docking plate 63, a terminal buckle seat 66 is provided in the middle part of the outer side of the cover plate 64, and the cover plate 64 can be movably connected to the terminal docking plate 63 through a guide column 67.

[0036] Preferably, the test head clamping plate mechanism 32 includes a Y-axis linear motor control module 321, a Z-axis linear motor module 322 controlled to move forward and backward by the Y-axis linear motor control module 321, and a test head clamping cylinder mounting base 323 controlled to move up and down by the Z-axis linear motor module 322. A test head clamping cylinder 324 is provided on the test head clamping cylinder mounting base 323.

[0037] The Y-axis linear motor control module 321, the camera Y-axis linear motor control module 331 and the Z-axis linear motor module 322 all include a servo motor, a synchronous wheel and a synchronous belt and a transmission screw. The output shaft of the servo motor is connected to the transmission screw through the synchronous wheel and the synchronous belt, and a screw nut is screwed on the transmission screw.

[0038] Preferably, the camera positioning mechanism 33 includes a camera Y-axis linear motor control module 331, which controls the movement of a camera mounting plate 332, on which a camera 333 is provided.

[0039] After the test head clamping plate mechanism 32 grabs the test head 6 , the camera positioning mechanism 33 controls the camera 33 to move to a position between the battery terminal and the test head 6 to take pictures of the position of the battery terminal and the test head 6 .

[0040] Preferably, the camera positioning mechanism 33 and the test head clamping plate mechanism 32 are both fixedly mounted on a movable plate 30, and the movable control module 31 includes a servo motor, a transmission screw, a linear guide rail and a linear slider. The servo motor controls the transmission of the transmission screw, and the transmission screw is connected to the movable plate 30 through a screw nut, and the movable plate is connected to the linear slide rail through a linear slider.

[0041] Preferably, a QR code scanning device is also included. The handling robot 5 carries the product from the product conveyor line 4 to the QR code scanning device to scan the product to confirm whether it is a good product. If the product is confirmed to be defective by the scan, the handling robot 5 will move the product to the defective product conveyor line 40 for delivery. A product positioning cylinder is installed on one side of the product conveyor line 4. When the product is conveyed to the designated position, the positioning cylinder positions the product, and the handling robot 5 then clamps and carries the product.

[0042] Preferably, multiple test platform mechanisms 2 are spaced apart on both sides of the upper end of the machine 1, and two pinch plate mechanisms 3 are provided. One pinch plate mechanism 3 alternately cooperates with the multiple test platform mechanisms 2 on one side to pinch the terminals of the product, and the other pinch plate mechanism 3 alternately cooperates with the multiple test platform mechanisms 2 on the other side to pinch the terminals of the product. The transport robot 5 is responsible for transporting products to each test platform mechanism 2 and removing products that have been tested.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and structure of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test head automatic fastening test machine, comprising a machine platform, characterized in that: The upper end of the machine is provided with a plurality of test platform mechanisms, a gusset mechanism for positioning and gusseting the product terminals on each test platform mechanism in turn, a product conveyor line, and a transport robot for transporting products from the product conveyor line to the test platform mechanism. Each time a product is placed on the test platform mechanism, the gusset mechanism will move to the corresponding position to gusset the product terminals on the test platform mechanism. The test platform mechanism includes a product positioning platform mechanism and a test head pressing mechanism, and the test head pressing mechanism has a test head adsorbed by an electromagnet; the buckle plate mechanism includes a moving control module, a test head clamping buckle plate mechanism and a camera positioning mechanism that are controlled to move simultaneously by the moving control module, and the qualified product transported by the transport robot is transported to the product positioning platform mechanism to position the product, and the product is a lithium battery. The moving control module controls the test head clamping buckle plate mechanism to move to the test head pressing mechanism to clamp the test head, and when the test head clamping buckle plate mechanism clamps the test head, the test head pressing mechanism disconnects from the test head, and the camera positioning mechanism takes pictures of the terminal position of the product and the position of the test head respectively to determine the position, and the moving control module controls the test head clamping buckle plate mechanism to move to a position that is buckled with the product terminal, and adjusts the position according to the terminal position information fed back by the camera positioning mechanism. After the test head is buckled with the terminal, the test head is pressed by the test head pressing mechanism and powered on for testing.

2. The automatic fastening tester for test heads according to claim 1, characterized in that: The product positioning platform mechanism includes a battery positioning platform and a battery terminal adsorption positioning platform, the battery terminal adsorption positioning platform is located on one side of the battery positioning platform, a terminal adsorption boss is provided on one side of the battery terminal adsorption positioning platform, a protective silicone pad is provided on one side of the terminal adsorption boss, the battery terminal rests on the silicone pad on one side of the terminal adsorption boss, a clamping cylinder is provided on the battery terminal adsorption positioning platform, the two clamping claws of the clamping claw cylinder are respectively clamped at the upper and lower ends of the silicone pad, and both clamping claws will not touch the terminal, a vacuum air duct is provided in the battery terminal adsorption positioning platform, the vacuum air duct passes through the terminal adsorption boss, an air duct hole is provided on the silicone pad, and the air duct hole is connected to the vacuum air duct.

3. The automatic fastening tester for test heads according to claim 2, characterized in that: The product positioning platform mechanism also includes a Y-direction terminal positioning mechanism, which includes a Y-direction positioning cylinder and a bearing positioning block. The bearing positioning block is located above the Y-direction positioning cylinder, and a bearing is provided on the front side of the bearing positioning block. An elastic positioning rod is provided on the piston rod of the Y-direction positioning cylinder. The Y-direction positioning cylinder controls the elastic positioning rod to press against the corner of the top sub-connecting plate, and the elastic positioning rod will contact the bearing when it moves; when the elastic positioning rod moves to the bearing position, the elastic positioning rod will tilt forward, and when the elastic positioning rod is disengaged from the bearing, the elastic positioning rod will be reset backward by the action of the spring and can press against the corner of the top sub-connecting plate.

4. The automatic fastening tester for test heads according to claim 2, characterized in that: The test head pressing mechanism includes a motor movement control module and a test head mounting plate whose movement is controlled by the motor movement control module. An electromagnet mounting seat is provided at the end of the test head mounting plate. An electromagnet is provided on one side of the electromagnet mounting seat. When the electromagnet is energized, it can adsorb the test head. When the test head clamping plate mechanism clamps the test head, the electromagnet is in the power-off state; when the test head pressing mechanism presses the test head, the electromagnet is in the power-on state; after the battery function test is completed, the test head pressing mechanism drives the test head to detach from the terminal, and the handling robot transports the tested battery to the product delivery line for delivery.

5. The automatic fastening tester for test heads according to claim 1, characterized in that: The test head includes a mounting plate, one side of the mounting plate is provided with an electromagnet connecting seat, the other side of the mounting plate is provided with a terminal docking plate, the terminal docking plate is covered with a cover plate, a spring is provided between the cover plate and the terminal docking plate, a terminal buckle seat is provided in the middle of the outer side of the cover plate, and the cover plate can be movably connected to the terminal docking plate through a guide column.

6. The automatic fastening tester for test heads according to claim 1, characterized in that: The test head clamping plate mechanism includes a Y-axis linear motor control module, a Z-axis linear motor module that is controlled to move forward and backward by the Y-axis linear motor control module, and a test head clamping cylinder mounting base that is controlled to move up and down by the Z-axis linear motor module. A test head clamping cylinder is provided on the test head clamping cylinder mounting base.

7. The automatic fastening tester for test heads according to claim 4, characterized in that: The camera positioning mechanism includes a camera Y-axis linear motor control module, which controls the movement of a camera mounting plate on which a camera is provided; After the test head clamping plate mechanism grabs the test head, the camera positioning mechanism controls the camera to move to a position between the battery terminal and the test head, and takes pictures of the position of the battery terminal and the test head.

8. The automatic fastening tester for test heads according to claim 1, characterized in that: The camera positioning mechanism and the test head clamping plate mechanism are both fixedly mounted on a movable plate. The movable control module includes a servo motor, a transmission screw, a linear guide rail and a linear slider. The servo motor controls the transmission of the transmission screw. The transmission screw is connected to the movable plate through a screw nut. The movable plate is connected to the linear guide rail through the linear slider.

9. The automatic fastening tester for test heads according to claim 1, characterized in that: It also includes a QR code scanning device. The transport robot transports the product from the product conveyor line to the QR code scanning device to scan the product to confirm whether it is a good product. If the scan confirms that the product is a defective product, the transport robot transports the product to the defective product conveyor line for delivery.

10. The automatic fastening tester for test heads according to claim 1, characterized in that: The plurality of test platform mechanisms are spaced apart on both sides of the upper end of the machine, and two buckle plate mechanisms are provided. One buckle plate mechanism takes turns cooperating with the plurality of test platform mechanisms on one side to buckle the terminals of the product, and the other buckle plate mechanism takes turns cooperating with the plurality of test platform mechanisms on the other side to buckle the terminals of the product.

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