A battery protection board assembly welding machine

Abstract

The present invention discloses a battery protection plate assembly welding machine, including a machine platform, a protection plate feeding mechanism is provided on one side of the machine platform, a shift fork feeding mechanism, an assembly robot, a transfer handling robot, a laser welding mechanism for welding the assembled protection plate, and a double-station turntable for transferring the protection plate feeding mechanism and the assembly robot. The double-station turntable is used to position two products at a time, and the double-station turntable rotates 180 degrees each time. The present invention automatically completes the feeding of protection plate materials and battery products, and the protection plate materials are supplied in a stacking manner. The assembly robot assembles according to the protection plate position information obtained by the first camera and the battery position information obtained by the second camera, thereby improving the accuracy of assembly. The entire assembly and welding process is completed automatically, reducing labor costs, integrating assembly and welding, reducing the time for handling intermediate products, and improving production efficiency.

Description

Technical Field

[0001] The invention relates to battery manufacturing equipment, in particular to a battery protection plate assembly welding machine. Background Art

[0002] During the production process of lithium batteries, it is necessary to perform functional testing on lithium batteries. Before the functional testing, the battery tabs and flexible cables need to be assembled and welded, and then the functional testing process can be entered. The current assembly method is semi-automatic assembly work with manual and equipment, and the assembly and welding are separated, the work efficiency is low, and the quality is difficult to guarantee. Summary of the invention

[0003] The purpose of the present invention is to provide a battery protection board assembly welding machine in view of the above-mentioned defects of 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 battery protection board assembly welding machine, comprising a machine platform, a protection board feeding mechanism is provided on one side of the machine platform, a fork feeding mechanism, an assembly manipulator, a transfer handling manipulator, a laser welding mechanism for welding the assembled protection board, and a double-station turntable for transferring the protection board feeding mechanism and the assembly manipulator, the double-station turntable is provided with two products for positioning each time, and the double-station turntable rotates 180 degrees each time;

[0005] The transfer handling robot takes materials from the protection plate feeding mechanism and places them on the double-station turntable. The double-station turntable rotates 180 degrees. The assembly robot takes materials from the double-station turntable and moves to the first camera shooting position to obtain the protection plate position. The fork feeding mechanism transports the battery to the specified position and obtains the position by the second camera. The assembly robot assembles according to the protection plate position information obtained by the first camera and the battery position information obtained by the second camera. The battery with the assembled protection plate is transported by the fork feeding mechanism to the laser welding mechanism for laser welding and fixation.

[0006] As an improvement of the battery protection board assembly welding machine of the present invention, the protection board feeding mechanism includes a feeding machine platform, and the feeding machine platform is provided with a horizontal moving material receiving mechanism, a vertical material taking mechanism and a stacking material horizontal conveying mechanism, and the stacking material horizontal conveying mechanism is located directly below the vertical material taking mechanism;

[0007] The vertical material taking mechanism sucks the product placement tray from the stacking horizontal conveying mechanism, and the horizontal moving material receiving mechanism moves to the vertical material taking mechanism to receive the material and moves the product placement tray horizontally to a designated position.

[0008] As an improvement of the battery protection board assembly welding machine of the present invention, the feeder table is also provided with an empty tray feeding hole and a product tray taking hole, and the vertical taking mechanism moves at the product tray taking hole to take the product tray;

[0009] The transfer handling robot takes materials from the horizontally movable material receiving mechanism, and the empty material tray after taking the product is grabbed by the transfer handling robot and directly placed in the empty tray discharge hole and dropped onto the empty tray delivery line for delivery.

[0010] As an improvement of the battery protection board assembly welding machine of the present invention, the horizontally movable material receiving mechanism includes a horizontal motor transmission module and a material receiving plate that is controlled by the horizontal motor transmission module to move horizontally. A first material tray positioning mechanism is provided on one side edge of the material receiving plate, and a material tray positioning block is provided on the other side edge of the material receiving plate;

[0011] The feeder platform is located at the edge of the empty tray discharge hole and is provided with a plurality of second tray positioning mechanisms at intervals. When the horizontal motor transmission module controls the receiving plate to move to the position of the empty tray discharge hole, the second tray positioning mechanism, the first tray positioning mechanism and the tray positioning block simultaneously position the tray.

[0012] As an improvement of the battery protection board assembly welding machine of the present invention, the first material tray positioning mechanism and the second material tray positioning mechanism both include a positioning cylinder and a positioning plate, the piston rod end of the positioning cylinder is connected to the positioning plate, the two ends of the positioning plate are connected to the positioning cylinder through a guide rod, the positioning plate is connected to a buffer plate through a spring screw, a spring is provided on the spring screw, and the buffer plate can be extended and retracted under the action of the spring.

[0013] As an improvement of the battery protection board assembly welding machine of the present invention, the vertical feeding mechanism includes a vertical motor transmission module and a feeding plate whose lifting and lowering is controlled by the vertical motor transmission module, and suction cup mounting brackets are provided at the four corners of the feeding plate, and suction cups are provided on the suction cup mounting brackets.

[0014] As an improvement of the battery protection board assembly welding machine of the present invention, the vertical motor transmission module and the horizontal motor transmission module both include a motor bracket, a servo motor, a transmission screw and a screw seat, the servo motor is installed on the motor bracket, the transmission screw is installed on the screw seat, and the output shaft of the servo motor is connected to the transmission screw.

[0015] As an improvement of the battery protection board assembly welding machine of the present invention, the laser welding mechanism includes a laser head height adjustment mechanism and a protection board positioning mechanism, the laser head height adjustment mechanism adjusts the height of the laser head mounting seat by a hand-adjusting screw, and the laser head mounting seat is provided with a laser head;

[0016] The protection plate positioning mechanism comprises a vertical motor control module, a lifting plate controlled by the vertical motor control module, and a protection plate positioning rod is installed on the lifting plate;

[0017] The fork feeding mechanism transports the battery assembled with the battery protection plate to the position of the laser welding mechanism, the protection plate positioning mechanism of the laser welding mechanism is actuated to position the protection plate, and the laser head performs welding.

[0018] As an improvement of the battery protection board assembly welding machine of the present invention, the fork feeding mechanism includes a base plate, a fork moving linear slide is provided on one side of the base plate, a product fixture displacement linear slide is provided on the upper end of the base plate, a first fork plate and a second fork plate are provided on the fork moving linear slide, the first fork plate is controlled to move by a first displacement drive mechanism, the second fork plate is controlled to move by a second displacement drive mechanism, the first fork plate and the second fork plate move simultaneously, and a plurality of product fixtures are spaced apart on the product fixture displacement linear slide, and the distance between each two product fixtures is equal.

[0019] As an improvement of the battery protection board assembly welding machine of the present invention, a plurality of shift fork cylinders are arranged at intervals on the first shift fork plate and the second shift fork plate, and a shift fork block is connected to the piston rod end of each shift fork cylinder through a linkage plate, and the shift fork cylinder can control the up and down movement of the shift fork block;

[0020] The first fork plate and the second fork plate are both provided with linear sliders at the positions of the fork block, and the fork block is connected to the linear sliders through linear slide rails; the first fork plate and the second fork plate are both provided with displacement strip holes at the positions of the linkage plate, and the linkage plate penetrates the displacement strip holes to connect the fork cylinder and the fork block;

[0021] A U-shaped groove is provided in the middle of the upper end of the fork block, and fork rollers for the U-shaped groove to be engaged are provided at intervals on both sides of the product fixture; a plurality of fork cylinders simultaneously control the fork block to move upward to the fork roller on one side of the product fixture, and the first displacement drive mechanism and the second displacement drive mechanism simultaneously control the first fork plate and the second fork plate to move horizontally;

[0022] The first displacement drive mechanism and the second displacement drive mechanism both include a servo motor, a transmission screw, a screw seat and a motor mounting seat, the output shaft of the servo motor is connected to the transmission screw, the servo motor is fixed on the motor mounting seat, the transmission screw is installed on the screw seat, and the transmission screw is connected to the first fork plate or the second fork plate through a screw nut.

[0023] Compared with the prior art, the advantages of the present invention are: the feeding of the protective plate and the battery product are all completed automatically, and the protective plate is supplied in a stacking manner. The assembly robot performs assembly according to the protective plate position information obtained by the first camera and the battery position information obtained by the second camera, thereby improving the accuracy of assembly. The battery with the assembled protective plate is transported to the laser welding mechanism by the fork feeding mechanism for laser welding and fixing. The entire assembly and welding process is completed automatically, reducing labor costs, integrating assembly and welding, reducing the time for handling intermediate products, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention and its beneficial technical effects are further described in detail below based on the accompanying drawings and specific embodiments, wherein:

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0026] Figure 2 It is a top view of the present invention.

[0027] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0028] Figure 4 It is a partial stereoscopic diagram of the vertical material taking mechanism of the present invention.

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the second tray positioning mechanism of the present invention.

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the shift fork feeding mechanism of the present invention.

[0031] Figure 7 It is a top view of the shift fork feeding mechanism of the present invention.

[0032] Figure 8 It is a schematic diagram of the connection structure between the shift fork cylinder and the shift fork block of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be further described below based on the accompanying drawings and specific embodiments, but the embodiments of the present invention are not limited thereto.

[0034] like Figures 1 to 8As shown, a battery protection board assembly welding machine includes a machine platform 30, a protection board feeding mechanism 40 is provided on one side of the machine platform 30, a fork feeding mechanism 50, an assembly robot 60, a transfer handling robot 70, a laser welding mechanism 80 for welding the assembled protection board, and a double-station turntable 90 for transferring the protection board feeding mechanism 40 and the assembly robot 60. The double-station turntable 90 is placed with two products for positioning each time, and the double-station turntable 90 rotates 180 degrees each time;

[0035] The transfer handling robot 70 takes materials from the protection plate feeding mechanism 40 and places them on the double-station turntable 90. The double-station turntable 90 rotates 180 degrees. The assembly robot takes materials from the double-station turntable and moves to the first camera 100 to obtain the position of the protection plate. The fork feeding mechanism transports the battery to the specified position and obtains the position through the second camera 200. The assembly robot assembles according to the protection plate position information obtained by the first camera and the battery position information obtained by the second camera. The battery with the assembled protection plate is transported by the fork feeding mechanism to the laser welding mechanism for laser welding and fixation.

[0036] The double-station turntable 90 includes a disk body and a motor for controlling the rotation of the disk body. The disk body is provided with two sets of protection plate placement stations, each set of protection plate placement stations can be used to place two battery protection plates. The motor drives the disk body to rotate 180 degrees each time.

[0037] Preferably, the protection plate feeding mechanism 40 comprises a feeding platform 401, on which a horizontal moving material receiving mechanism 402, a vertical material taking mechanism 403 and a stacking material horizontal conveying mechanism 404 are provided, and the stacking material horizontal conveying mechanism 404 is located directly below the vertical material taking mechanism 403;

[0038] The vertical material taking mechanism 403 takes the product placement tray from the stacking horizontal conveying mechanism 404, and the horizontal moving material receiving mechanism 402 moves to the vertical material taking mechanism 403 to receive the material, and moves the product placement tray horizontally to a specified position. The stacking horizontal conveying mechanism 404 includes a conveyor belt, a synchronous pulley and a feeding motor. The conveyor belt is fixed on two synchronous pulleys. The feeding motor drives one of the synchronous pulleys to rotate, thereby driving the conveyor belt to circulate. The product placement trays are stacked on the conveyor belt.

[0039] Preferably, the feeder table 401 is also provided with an empty tray discharge hole and a product tray pick-up hole, and the vertical pick-up mechanism 403 moves at the product tray pick-up hole to pick up the product tray;

[0040] The transfer handling robot 70 takes materials from the horizontally movable material receiving mechanism 402. The empty material tray after taking the product is grabbed by the transfer handling robot 70 and directly placed in the empty tray discharge hole and dropped onto the empty tray delivery line for delivery.

[0041] Preferably, the horizontally movable material receiving mechanism 402 comprises a horizontal motor transmission module 4021 and a material receiving plate 4022 that is horizontally movable and controlled by the horizontal motor transmission module 4021. A first material tray positioning mechanism 4023 is provided on one side edge of the material receiving plate 4022, and a material tray positioning block 4024 is provided on the other side edge of the material receiving plate 4022;

[0042] The feeder platform 401 is located at the edge of the empty tray discharge hole and is provided with multiple second tray positioning mechanisms 405 at intervals. When the horizontal motor transmission module 4021 controls the receiving plate 4022 to move to the empty tray discharge hole position, the second tray positioning mechanism 405, the first tray positioning mechanism 4023 and the tray positioning block 4024 simultaneously position the tray.

[0043] Preferably, the first tray positioning mechanism 4023 and the second tray positioning mechanism 405 both include a positioning cylinder 406 and a positioning plate 407, the piston rod end of the positioning cylinder 406 is connected to the positioning plate 407, both ends of the positioning plate 407 are connected to the positioning cylinder 406 through a guide rod, the positioning plate 407 is connected to a buffer plate 409 through a spring screw 408, a spring is sleeved on the spring screw 409, and the buffer plate 409 can be extended and retracted under the action of the spring.

[0044] Preferably, the vertical feeding mechanism 403 includes a vertical motor transmission module 4031 and a feeding plate 4032 whose lifting is controlled by the vertical motor transmission module 4031 . Suction cup mounting brackets 4033 are provided at the four corners of the feeding plate 4032 , and suction cups 4034 are provided on the suction cup mounting brackets 4033 .

[0045] Preferably, the vertical motor transmission module 4031 and the horizontal motor transmission module 4021 both include a motor bracket, a servo motor, a transmission screw and a screw seat, the servo motor is mounted on the motor bracket, the transmission screw is mounted on the screw seat, and the output shaft of the servo motor is connected to the transmission screw.

[0046] Preferably, the laser welding mechanism 80 includes a laser head height adjustment mechanism 801 and a protection plate positioning mechanism 802, the laser head height adjustment mechanism 801 adjusts the height of a laser head mounting seat 804 through a manual adjustment screw 803, and a laser head 805 is provided on the laser head mounting seat 804;

[0047] The protection plate positioning mechanism 802 includes a vertical motor control module 806, a lifting plate 807 controlled by the vertical motor control module 806, and a protection plate positioning rod 808 is installed on the lifting plate 807;

[0048] The fork feeding mechanism 50 transports the battery assembled with the battery protection plate to the position of the laser welding mechanism 80, the protection plate positioning mechanism 802 of the laser welding mechanism 80 operates to position the protection plate, and the laser head 805 performs welding.

[0049] Preferably, the fork feeding mechanism 50 includes a base plate 1, a fork moving linear slide 2 is provided on one side of the base plate 1, a product fixture displacement linear slide 3 is provided on the upper end of the base plate 1, a first fork plate 4 and a second fork plate 5 are provided on the fork moving linear slide 2, the first fork plate 4 is controlled to move by a first displacement drive mechanism 6, the second fork plate 5 is controlled to move by a second displacement drive mechanism 7, the first fork plate 4 and the second fork plate 5 move simultaneously, and a plurality of product fixtures 8 are arranged on the product fixture displacement linear slide 3 at intervals, and the distance between each two product fixtures 8 is equal. Each movement of the fork blocks on the first fork plate 4 and the second fork plate 5 can correspond to a product fixture 8 and drive the horizontal movement of the product fixture 8. The first fork plate 4 and the second fork plate 5 can drive four product fixtures to move at the same time each time. Different numbers of product fixtures can be set to move according to production needs.

[0050] Preferably, a plurality of shift fork cylinders 9 are provided at intervals on the first shift fork plate 4 and the second shift fork plate 5, and a piston rod end of each shift fork cylinder 9 is connected to a shift fork block 11 via a linkage plate 10, and the shift fork cylinder 9 can control the up and down movement of the shift fork block 11.

[0051] Preferably, the first fork plate 4 and the second fork plate 5 are both provided with a linear slider 12 at the position of the fork block 11 , and the fork block 11 is connected to the linear slider 12 via a linear slide rail 13 .

[0052] Preferably, the first fork plate 4 and the second fork plate 5 are both provided with displacement strip holes 14 at the positions of the linkage plate 10 , and the linkage plate 10 penetrates the displacement strip holes 14 to connect the fork cylinder 9 and the fork block 11 .

[0053] Preferably, a U-shaped groove 15 is provided in the middle of the upper end of the fork block 11, and fork rollers 16 for the U-shaped groove 15 to be engaged are provided at intervals on both sides of the product fixture 8; multiple fork cylinders 9 simultaneously control the fork block 11 to move upward toward the fork roller 16 on the side of the product fixture 8, and the first displacement drive mechanism 6 and the second displacement drive mechanism 7 simultaneously control the first fork plate 4 and the second fork plate 5 to move horizontally.

[0054] Preferably, the first displacement drive mechanism 6 and the second displacement drive mechanism 7 both include a servo motor 21, a transmission screw 22, a screw seat 23 and a motor mounting seat 24, the output shaft of the servo motor 21 is connected to the transmission screw 22, the servo motor 21 is fixed on the motor mounting seat 24, the transmission screw 22 is installed on the screw seat 23, and the transmission screw 22 is connected to the first fork plate 4 or the second fork plate 5 through a screw nut.

[0055] A plurality of shift fork cylinders 9 are used to insert and remove the product fixture 8. Two displacement drive mechanisms simultaneously control the movement of the shift fork plates, and can simultaneously and equidistantly move the product fixture 8, thereby facilitating the product transfer between the battery cable assembly station and the laser welding station. Moreover, the product is transferred in an equidistant manner, and the position transfer is accurate.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and structure of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery protection board assembly welding machine, comprising a machine platform, characterized in that: A protection plate feeding mechanism is provided on one side of the machine, and a fork feeding mechanism, an assembly robot, a transfer handling robot, a laser welding mechanism for welding the assembled protection plate, and a double-station turntable for transferring the protection plate feeding mechanism and the assembly robot are provided on the machine. Two products are placed in the double-station turntable for positioning each time, and the double-station turntable rotates 180 degrees each time; The transfer handling robot takes materials from the protection plate feeding mechanism and places them on the double-station turntable. The double-station turntable rotates 180 degrees. The assembly robot takes materials from the double-station turntable and moves to the first camera shooting position to obtain the protection plate position. The fork feeding mechanism transports the battery to the specified position and obtains the position through the second camera. The assembly robot assembles according to the protection plate position information obtained by the first camera and the battery position information obtained by the second camera. The battery with the assembled protection plate is transported by the fork feeding mechanism to the laser welding mechanism for laser welding and fixation. The fork feeding mechanism comprises a bottom plate, a fork moving linear slide is provided on one side of the bottom plate, a product fixture displacement linear slide is provided on the upper end of the bottom plate, a first fork plate and a second fork plate are provided on the fork moving linear slide, the first fork plate is controlled to move by a first displacement driving mechanism, the second fork plate is controlled to move by a second displacement driving mechanism, the first fork plate and the second fork plate move simultaneously, a plurality of product fixtures are arranged at intervals on the product fixture displacement linear slide, and the distance between every two product fixtures is equal; A plurality of shift fork cylinders are arranged at intervals on the first shift fork plate and the second shift fork plate, and a piston rod end of each shift fork cylinder is connected to a shift fork block via a linkage plate, and the shift fork cylinder can control the shift fork block to move up and down; The first fork plate and the second fork plate are both provided with linear sliders at the positions of the fork block, and the fork block is connected to the linear sliders through linear slide rails; the first fork plate and the second fork plate are both provided with displacement strip holes at the positions of the linkage plate, and the linkage plate penetrates the displacement strip holes to connect the fork cylinder and the fork block; A U-shaped groove is provided in the middle of the upper end of the fork block, and fork rollers for the U-shaped groove to be engaged are provided at intervals on both sides of the product fixture; a plurality of fork cylinders simultaneously control the fork block to move upward to the fork roller on one side of the product fixture, and the first displacement drive mechanism and the second displacement drive mechanism simultaneously control the first fork plate and the second fork plate to move horizontally; The first displacement drive mechanism and the second displacement drive mechanism both include a servo motor, a transmission screw, a screw seat and a motor mounting seat, the output shaft of the servo motor is connected to the transmission screw, the servo motor is fixed on the motor mounting seat, the transmission screw is mounted on the screw seat, and the transmission screw is connected to the first fork plate or the second fork plate through a screw nut; The protection plate feeding mechanism comprises a feeding platform, on which a horizontal moving material receiving mechanism, a vertical material taking mechanism and a stacking material horizontal conveying mechanism are arranged, and the stacking material horizontal conveying mechanism is located directly below the vertical material taking mechanism; The vertical material taking mechanism sucks the product placement tray from the stacking horizontal conveying mechanism, and the horizontal moving material receiving mechanism moves to the vertical material taking mechanism to receive the material and moves the product placement tray horizontally to a designated position.

2. The battery protection board assembly welding machine according to claim 1, characterized in that: The feeder table is also provided with an empty tray discharge hole and a product tray pick-up hole, and the vertical pick-up mechanism moves at the product tray pick-up hole to pick up the product tray; The transfer handling robot takes materials from the horizontally movable material receiving mechanism, and the empty material tray after taking the product is grabbed by the transfer handling robot and directly placed in the empty tray discharge hole and dropped onto the empty tray delivery line for delivery.

3. The battery protection board assembly welding machine according to claim 2, characterized in that: The horizontally movable material receiving mechanism comprises a horizontal motor transmission module and a material receiving plate controlled by the horizontal motor transmission module to move horizontally, a first material tray positioning mechanism is provided on one side edge of the material receiving plate, and a material tray positioning block is provided on the other side edge of the material receiving plate; The feeder platform is located at the edge of the empty tray discharge hole and is provided with a plurality of second tray positioning mechanisms at intervals. When the horizontal motor transmission module controls the receiving plate to move to the position of the empty tray discharge hole, the second tray positioning mechanism, the first tray positioning mechanism and the tray positioning block simultaneously position the tray.

4. The battery protection board assembly welding machine according to claim 3, characterized in that: The first tray positioning mechanism and the second tray positioning mechanism both include a positioning cylinder and a positioning plate, the piston rod end of the positioning cylinder is connected to the positioning plate, the two ends of the positioning plate are connected to the positioning cylinder through guide rods, the positioning plate is connected to a buffer plate through a spring screw, a spring is sleeved on the spring screw, and the buffer plate can be extended and retracted under the action of the spring.

5. The battery protection board assembly welding machine according to claim 4, characterized in that: The vertical material-retrieving mechanism comprises a vertical motor transmission module and a material-retrieving plate whose lifting is controlled by the vertical motor transmission module. Suction cup mounting brackets are arranged at four corners of the material-retrieving plate, and suction cups are arranged on the suction cup mounting brackets.

6. The battery protection board assembly welding machine according to claim 5, characterized in that: The vertical motor transmission module and the horizontal motor transmission module both include a motor bracket, a servo motor, a transmission screw and a screw seat. The servo motor is mounted on the motor bracket, the transmission screw is mounted on the screw seat, and the output shaft of the servo motor is connected to the transmission screw.

7. The battery protection board assembly welding machine according to claim 1, characterized in that: The laser welding mechanism includes a laser head height adjustment mechanism and a protection plate positioning mechanism. The laser head height adjustment mechanism adjusts the height of a laser head mounting seat by a hand-adjustable screw. The laser head mounting seat is provided with a laser head. The protection plate positioning mechanism comprises a vertical motor control module, a lifting plate controlled by the vertical motor control module, and a protection plate positioning rod is installed on the lifting plate; The fork feeding mechanism transports the battery assembled with the battery protection plate to the position of the laser welding mechanism, the protection plate positioning mechanism of the laser welding mechanism is actuated to position the protection plate, and the laser head performs welding.

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