An automatic voltage internal resistance testing machine

Abstract

The application provides an automatic voltage internal resistance testing machine, which comprises a rack and a tray feeding and discharging system, a rotating disc, a feeding manipulator, a side voltage testing mechanism, a voltage internal resistance testing mechanism, a single-pole lug shaping mechanism, a double-pole lug shaping mechanism, a lug cutting mechanism, a discharging conveying mechanism and a discharging manipulator, which are all fixed on the rack. The tray feeding and discharging system comprises a tray feeding mechanism, a tray discharging mechanism, an empty tray carrying manipulator, a feeding conveying belt and a battery cell carrying manipulator. The tray conveyed by an AVG trolley is immediately stopped on the first roller group by conveying on the X-axis conveying assembly, and the first roller group is driven to rise by the first lifting driving assembly, so that a new batch of trays are temporarily stored, and the AGV trolley can leave to perform other processes. The design has the advantages that the standby time of the AGV trolley can be reduced, the number of AGV trolleys to be purchased can be reduced, and the manufacturing cost can be reduced.

Description

Technical Field

[0001] This invention relates to the field of battery testing technology, and in particular to an automatic voltage internal resistance tester. Background Technology

[0002] With the development of technology, batteries are becoming increasingly widely used, and the volume of batteries used is also increasing. During the production process of battery cells, various tests are required, including barcode scanning, voltage testing, and internal resistance testing. On the battery cell testing production line, the loading end of the loading and unloading equipment raises the trays containing the products layer by layer, so that a robotic arm can pick up the cells for subsequent testing processes. Empty trays are collected and unloaded from the unloading end. The loading and unloading equipment is often used in conjunction with AGV (Automated Guided Vehicle) carts. The AGV carts transport the vertically stacked trays to the loading end, where the AGV carts pick up the cells. The AGV lifts its trays and loads products. However, before all the products in the current tray have been removed, the AGV has already transported a new batch of trays to the loading end. At this point, the AGV needs to standby temporarily, waiting for the loading end to finish loading the previous batch of products. It is clear that the long standby time of the AGV will obviously reduce the actual usage time of the AGV, leading to an increase in the number of AGVs that need to be purchased, and consequently, an increase in manufacturing costs. Therefore, it is necessary to develop an automatic voltage internal resistance tester to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic voltage internal resistance tester to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An automatic voltage resistance testing machine includes a frame and a tray loading / unloading system, a turntable, a loading robot, a side voltage testing mechanism, a voltage resistance testing mechanism, a single-tab shaping mechanism, a double-tab shaping mechanism, a tab cutting mechanism, a unloading conveying mechanism, and an unloading robot, all fixed on the frame. The tray loading / unloading system and the turntable correspond to the left and right sides above the frame, respectively. The material conveying mechanism and the unloading robot are arranged sequentially around the outer perimeter of the turntable along the conveying direction. The loading robot is positioned between the material tray loading / unloading system and the turntable. The material tray loading / unloading system includes a material tray loading mechanism, a material tray unloading mechanism, an empty tray handling robot, a loading conveyor belt, and a battery cell handling robot. The material tray loading mechanism and the material tray unloading mechanism are arranged side-by-side in the front-to-back direction. The empty tray handling robot is mounted above the material tray loading mechanism and the material tray unloading mechanism. The loading conveyor belt is fixedly positioned on the right side of the material tray loading mechanism. The handling robot is mounted above the material tray loading mechanism and the material conveyor belt. The material tray loading mechanism includes an X-axis conveying assembly, a first lifting drive assembly, a second lifting drive assembly, a first roller group, a second roller group, an adjusting base, a width limiting plate, and a bracket assembly. The X-axis conveying assembly is set along the left-right direction. The first lifting drive assembly is fixedly located on the left side of the X-axis conveying assembly. The first roller group is fixed to the power output end of the first lifting drive assembly. Two sets of the first roller group are provided, corresponding to the front and rear sides of the left end of the X-axis conveying assembly, respectively. The second lifting drive assembly is fixedly located on the right side of the X-axis conveying assembly. The second roller group is fixed to the power output end of the second lifting drive assembly. Two sets of the second roller group are provided, corresponding to the front and rear sides of the right end of the X-axis conveying assembly, respectively. The adjusting base is fixedly located on the right side of the X-axis conveying assembly. The lower end of the width limiting plate is fixed to the adjusting base and its position is adjustable along the front-rear direction. Two sets of the width limiting plate are provided, corresponding to the front and rear sides of the second roller group, respectively. The bracket assembly is fixed to the upper end of the width limiting plate.

[0006] Further description of the present invention: The bracket assembly includes a Y-axis cylinder, a movable bracket, and a tray. The Y-axis cylinder is fixed above the width-limiting enclosure. The movable bracket is fixed at the power output end of the Y-axis cylinder. The outer end of the tray is fixed on the movable bracket. The inner end of the tray passes through the width-limiting enclosure. Multiple sets of trays are arranged on the movable bracket in the left-right direction. The multiple sets of trays and the multiple sets of rollers on the second roller group are staggered. The material tray unloading mechanism and the material tray loading mechanism have the same structure.

[0007] Further description of the present invention: The battery cell handling robot includes a first X-axis drive assembly, a rotary drive assembly, an adjustable distance assembly, a Z-axis cylinder, and a suction cup assembly. The first X-axis drive assembly is mounted above the material tray loading mechanism and the loading conveyor belt. The rotary drive assembly is fixed to the power output end of the first X-axis drive assembly. The adjustable distance assembly is fixed to the power output end of the rotary drive assembly. Three sets of Z-axis cylinders are arranged and fixed side by side on the adjustable distance assembly. The adjustable distance assembly is used to adjust the spacing between the three sets of Z-axis cylinders. The suction cup assembly is fixed to the power output end of the Z-axis cylinder and corresponds to the area above the loading conveyor belt.

[0008] Further description of the invention: The side voltage testing mechanism includes a first lateral movement drive assembly, a first lateral movement bracket, a third lifting drive assembly, a first movable plate, an upper detection probe assembly, a lower detection probe assembly, an ejection drive assembly, a second movable plate, and a double-cutter assembly. The first lateral movement bracket is fixed to the power output end of the first lateral movement drive assembly, which drives the first lateral movement bracket to move left and right. The third lifting drive assembly is fixed to the first lateral movement bracket. The first movable plate is fixed to the power output end of the third lifting drive assembly and slidably connected to the first lateral movement bracket. The third lifting drive assembly drives the first movable plate to move up and down. The upper detection probe assembly is fixed to the first movable plate. The lower detection probe assembly is fixed to the first lateral movement bracket and corresponds to the area below the upper detection probe assembly. The ejection drive assembly is fixed to the lower side of the first lateral movement bracket with its power output end facing the lower detection probe assembly. The second movable plate is fixed to the ejection drive assembly. The power output end of the moving component drives the second movable plate to move back and forth. The double-cutter assembly is fixed on the second movable plate. The double-cutter assembly includes a horizontal adjustment motor, a first mounting base, a second mounting base, a first ejection cylinder, a second ejection cylinder, a first cutter, and a second cutter. The horizontal adjustment motor is fixed on the second movable plate. The first mounting base is fixed on the power output end of the horizontal adjustment motor and is slidably connected to the second movable plate. The horizontal adjustment motor drives the first mounting base to move left and right. The second mounting base is fixed on the second movable plate and its position is adjustable in the left and right direction. The first ejection cylinder and the second ejection cylinder are respectively fixed on the first mounting base and the second mounting base. The first cutter and the second cutter are respectively fixed on the power output ends of the first ejection cylinder and the second ejection cylinder. The first cutter and the second cutter correspond to the left and right sides of the lower detection probe assembly, respectively. The blades of the first cutter and the second cutter both face the lower detection probe assembly.

[0009] Further description of the present invention: Two sets of the upper detection probe assembly, the lower detection probe assembly, and the dual-cutter assembly are each arranged in the left-right direction; the upper detection probe assembly includes a first lifting cylinder, a first elastic telescopic member, a second elastic telescopic member, a front probe, and a rear probe. The first lifting cylinder is fixed to the first movable plate with its power output end facing downwards. The first and second elastic telescopic members are both fixed to the power output end of the first lifting cylinder. The front probe and the rear probe are respectively fixed to the first and second elastic telescopic members, with the front probe corresponding to the front side of the rear probe; the lower detection probe assembly includes a second lifting cylinder and a lower probe. The second lifting cylinder is fixed to the first transverse support with its power output end facing upwards. The lower end of the lower probe is fixed to the power output end of the second lifting cylinder, and the upper end of the lower probe corresponds to the lower part of the upper detection probe assembly.

[0010] Further description of the present invention: The voltage internal resistance testing mechanism includes a second transverse drive assembly, a second transverse support, a fourth lifting drive assembly, a lifting slide, a lifting plate, a platform, an adjustment drive assembly, a first detection probe assembly, and a second detection probe assembly. The second transverse support is fixed to the power output end of the second transverse drive assembly, and the second transverse drive assembly drives the second transverse support to move left and right. The fourth lifting drive assembly and the lifting slide are both fixed on the second transverse support. The lifting plate is fixed to the power output end of the fourth lifting drive assembly and is slidably connected to the lifting slide. The platform is fixed on the lifting plate, and the platform is provided with upwardly protruding dividing ribs. The adjustment drive assembly is fixed on the second transverse support. The first detection probe assembly is fixed on the second transverse support, and its detection end corresponds to the upper left side of the dividing rib. The second detection probe assembly is fixed to the power output end of the adjustment drive assembly and is slidably connected to the second transverse support. The second detection probe assembly corresponds to the upper right side of the dividing rib. The adjustment drive assembly drives the second detection probe assembly to move left and right.

[0011] Further description of the present invention: The adjustable drive assembly includes a rotary motor, a screw, a connecting block, a transverse slide, and a transverse sliding plate. The rotary motor is fixed on the second transverse support, the screw is fixed to the power output end of the rotary motor, the connecting block is threadedly connected to the screw, the transverse slide is fixed on the second transverse support, and the transverse sliding plate is fixed on the connecting block and slidably connected to the transverse slide. The second detection probe assembly is fixed on the transverse sliding plate. The first detection probe assembly includes a first pressing cylinder and a first probe. The first pressing cylinder is fixed on the second transverse support, the upper end of the first probe is fixed to the power output end of the first pressing cylinder, and the lower end corresponds to the upper left side of the partition rib. The second detection probe assembly includes a second pressing cylinder and a second probe. The second pressing cylinder is fixed on the transverse sliding plate, the upper end of the second probe is fixed to the power output end of the second pressing cylinder, and the lower end corresponds to the upper right side of the partition rib. Two sets of partition ribs are provided on the platform, two sets of first detection probe assemblies are provided on the second transverse support, and two sets of second detection probe assemblies are provided on the transverse sliding plate.

[0012] Further description of the invention: The bipolar ear shaping mechanism includes a mounting bracket, a lifting support platform, a Y-axis drive assembly, a mounting plate, a Z-axis drive assembly, a second X-axis drive assembly, a spring buffer assembly, and shaping rollers. The lifting support platform is fixed on the mounting bracket. The Y-axis drive assembly is fixed on the mounting bracket with its power output end facing forward. The mounting plate is fixed to the power output end of the Y-axis drive assembly and slidably connected to the mounting bracket. The Z-axis drive assembly is fixed on the mounting plate with its power output end facing downward. The second X-axis drive assembly is fixed to the power output end of the Z-axis drive assembly. The upper end of the spring buffer assembly is fixed to the power output end of the second X-axis drive assembly. The shaping rollers are rotatably mounted on the lower end of the spring buffer assembly. Two sets of Z-axis drive assemblies and two sets of second X-axis drive assemblies are provided. Each set of second X-axis drive assemblies has two sets of spring buffer assemblies and shaping rollers. The spring buffer assemblies on one set of second X-axis drive assemblies are spaced apart from the spring buffer assemblies on the other set of second X-axis drive assemblies. All four sets of shaping rollers correspond to the area above the lifting support platform. The shaping rollers are made of zirconia ceramic.

[0013] Further description of the present invention: The lifting support platform includes a lifting motor, a Z-axis slide, a Z-axis slide plate, and a rolling platform. The lifting motor and the Z-axis slide are fixed on the mounting bracket. The Z-axis slide plate is fixed to the power output end of the lifting motor and is slidably connected to the Z-axis slide. The rolling platform is fixed to the upper end of the Z-axis slide plate and corresponds to the lower part of the shaping roller.

[0014] Further description of the present invention: The spring buffer assembly includes a first slider, a second slider, a fixed block, and a compression spring. The first slider is fixed to the power output end of the second X-axis drive assembly. The second slider is slidably connected to the first slider. The second slider can slide vertically on the first slider. The fixed block is fixed to the upper end of the first slider. The upper end of the compression spring is fixed to the fixed block. The lower end of the compression spring is fixed to the top of the second slider. The shaping roller is rotatably mounted on the bottom of the second slider.

[0015] The beneficial effects of this invention are as follows: The battery cells are placed in a tray, and the neatly stacked trays are transported by an AGV trolley to the tray loading and unloading system for loading the battery cells and unloading empty trays. The loading robot grabs the battery cells from the tray and places them on a turntable. The battery cells are then transported sequentially by the turntable to the side voltage testing mechanism, the voltage internal resistance testing mechanism, the single tab shaping mechanism, the double tab shaping mechanism, and the tab cutting mechanism for testing and shaping the battery cells. The single tab shaping mechanism and the double tab shaping mechanism are used for single tab shaping and double tab shaping, respectively. When used together, they can also be used to shape three-tab battery cells. The AGV pushes the material tray onto the X-axis conveyor assembly, which then transports the tray to the second roller assembly. The second lifting drive assembly drives the second roller assembly to rise, achieving layer-by-layer lifting of the material tray. The battery cell handling robot grabs the battery cells from the tray and places them on the loading conveyor belt. Empty trays are transported by the empty tray handling robot to the tray unloading mechanism for collection and unloading. While the second roller assembly is still in the loading state, the material trays transported by the AGV stop immediately above the first roller assembly on the X-axis conveyor assembly. The first lifting drive assembly then drives the first roller assembly to rise, temporarily storing the new batch of material trays. The AGV can then leave to perform other processes. The bracket assembly supports the bottommost material tray in the loading state, allowing the second roller assembly to be reset in advance. This enables the new batch of material trays to be pre-loaded onto the second roller assembly for the next batch of battery cells. The advantage of this design is that it can reduce the standby time of the AGV and the number of AGVs required, thereby reducing manufacturing costs. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention;

[0017] Figure 2 This is a structural diagram of the material tray loading and unloading system in this invention;

[0018] Figure 3 This is a structural diagram of the material tray feeding mechanism in this invention;

[0019] Figure 4 yes Figure 3 A magnified view of a portion of position A in the middle;

[0020] Figure 5 This is a structural diagram of the battery cell handling robot in this invention;

[0021] Figure 6 This is a structural diagram of the side voltage testing mechanism in this invention;

[0022] Figure 7 This is a structural diagram (rear view) of the side voltage testing mechanism in this invention.

[0023] Figure 8 This is a structural diagram of the upper detection probe assembly in this invention;

[0024] Figure 9 This is a structural diagram of the lower detection probe assembly and the dual-cutter assembly in this invention;

[0025] Figure 10 This is a structural diagram of the voltage internal resistance testing mechanism in this invention;

[0026] Figure 11 This is a structural diagram (rear view) of the voltage internal resistance testing mechanism in this invention.

[0027] Figure 12 This is a structural diagram of the distance adjustment drive assembly, the first detection probe assembly, and the second detection probe assembly in this invention;

[0028] Figure 13 This is a structural diagram of the bipolar ear shaping mechanism in this invention;

[0029] Figure 14 This is a structural diagram (rear view) of the bipolar ear shaping mechanism in this invention.

[0030] Figure 15 This is a structural diagram of the second X-axis drive assembly, the spring buffer assembly, and the shaping roller in this invention;

[0031] Explanation of reference numerals in the attached figures:

[0032] 01. Material tray loading and unloading system; 02. Turntable; 03. Loading robot; 04. Edge voltage testing mechanism; 05. Voltage internal resistance testing mechanism; 06. Single tab shaping mechanism; 07. Bipolar tab shaping mechanism; 08. Tab cutting mechanism; 09. Unloading conveying mechanism; 10. Unloading robot.

[0033] 11. Material tray loading mechanism; 111. X-axis conveyor assembly; 112. First lifting drive assembly; 113. Second lifting drive assembly; 114. First roller group; 115. Second roller group; 116. Adjustable base; 117. Width limiting plate; 118. Bracket assembly; 1181. Y-axis cylinder; 1182. Movable bracket; 1183. Pallet; 12. Material tray unloading mechanism; 13. Empty tray handling robot; 14. Loading conveyor belt; 15. Battery cell handling robot; 151. First X-axis drive assembly; 152. Rotation drive assembly; 153. Adjustment assembly; 154. Z-axis cylinder; 155. Suction cup assembly.

[0034] 41. First transverse drive assembly; 42. First transverse support; 43. Third lifting drive assembly; 44. First movable plate; 45. Upper detection probe assembly; 451. First lifting cylinder; 452. First elastic telescopic member; 453. Second elastic telescopic member; 454. Front probe; 455. Rear probe; 46. Lower detection probe assembly; 461. Second lifting cylinder; 462. Lower probe; 47. Ejection drive assembly; 48. Second movable plate; 49. Double cutter assembly; 491. Transverse adjustment motor; 492. First mounting base; 493. Second mounting base; 494. First ejection cylinder; 495. Second ejection cylinder; 496. First cutter; 497. Second cutter.

[0035] 51. Second transverse drive assembly; 52. Second transverse support; 53. Fourth lifting drive assembly; 54. Lifting slide; 55. Lifting slide plate; 56. Platform; 561. Separating rib; 57. Adjustment drive assembly; 571. Rotary motor; 572. Screw; 573. Connecting block; 574. Transverse slide; 575. Transverse slide plate; 58. First detection probe assembly; 581. First clamping cylinder; 582. First probe; 59. Second detection probe assembly; 591. Second clamping cylinder; 592. Second probe.

[0036] 71. Mounting bracket; 72. Lifting support platform; 721. Lifting motor; 722. Z-axis slide; 723. Z-axis slide plate; 724. Rolling platform; 73. Y-axis drive assembly; 74. Mounting plate; 75. Z-axis drive assembly; 76. Second X-axis drive assembly; 77. Spring buffer assembly; 771. First slider; 772. Second slider; 773. Fixing block; 774. Compression spring; 78. Shaping roller. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings:

[0038] like Figure 1 As shown, an automatic voltage internal resistance tester includes a frame and a material tray loading / unloading system 01, a turntable 02, a loading robot 03, a side voltage testing mechanism 04, a voltage internal resistance testing mechanism 05, a single tab shaping mechanism 06, a double tab shaping mechanism 07, a tab cutting mechanism 08, a discharge conveying mechanism 09, and a discharge robot 10, all fixed on the frame. The material tray loading / unloading system 01 and the turntable 02 correspond to the left and right sides above the frame, respectively. The loading robot 03, the side voltage testing mechanism 04, the voltage internal resistance testing mechanism 05, the single tab shaping mechanism 06, the double tab shaping mechanism 07, the tab cutting mechanism 08, the discharge conveying mechanism 09, and the discharge robot 10 are arranged sequentially on the outer periphery of the turntable 02 along the conveying direction of the turntable 02. The loading robot 03 is located between the material tray loading / unloading system 01 and the turntable 02.

[0039] The battery cells are placed in a tray, and the neatly stacked trays are transported by an AGV to the tray loading and unloading system 01 for loading the battery cells and unloading empty trays. The loading robot 03 picks up the battery cells from the tray and places them on a turntable 02. The battery cells are then transported sequentially from the turntable 02 to the side voltage testing mechanism 04, the voltage internal resistance testing mechanism 05, the single tab shaping mechanism 06, the double tab shaping mechanism 07, and the tab cutting mechanism 08 for testing and shaping the battery cells. The single tab shaping mechanism 06 and the double tab shaping mechanism 07 are used for single tab shaping and double tab shaping, respectively. When used together, they can also be used to shape three-tab battery cells.

[0040] like Figures 2 to 5 As shown, the material tray loading and unloading system 01 includes a material tray loading mechanism 11, a material tray unloading mechanism 12, an empty tray handling robot 13, a loading conveyor belt 14, and a battery cell handling robot 15. The material tray loading mechanism 11 and the material tray unloading mechanism 12 are arranged side by side in the front-to-back direction. The empty tray handling robot 13 is mounted above the material tray loading mechanism 11 and the material tray unloading mechanism 12. The loading conveyor belt 14 is fixedly mounted on the right side of the material tray loading mechanism 11. The battery cell handling robot 15 is mounted above the material tray loading mechanism 11 and the loading conveyor belt 14.

[0041] The material tray feeding mechanism 11 includes an X-axis conveying assembly 111, a first lifting drive assembly 112, a second lifting drive assembly 113, a first roller group 114, a second roller group 115, an adjusting base 116, a width limiting plate 117, and a bracket assembly 118. The X-axis conveying assembly 111 is arranged in the left-right direction. The first lifting drive assembly 112 is fixedly arranged on the left side of the X-axis conveying assembly 111. The first roller group 114 is fixed to the power output end of the first lifting drive assembly 112. Two sets of the first roller group 114 are provided, corresponding to the front and rear sides of the left end of the X-axis conveying assembly 111, respectively. The second lifting drive assembly 113 is fixedly installed on the right side of the X-axis conveying assembly 111. The second roller group 115 is fixed at the power output end of the second lifting drive assembly 113. Two sets of the second roller group 115 are provided and correspond to the front and rear sides of the right end of the X-axis conveying assembly 111 respectively. The adjusting base 116 is fixedly installed on the right side of the X-axis conveying assembly 111. The lower end of the width limiting plate 117 is fixed on the adjusting base 116 and its position is adjustable in the front and rear direction. Two sets of the width limiting plate 117 are provided and correspond to the front and rear sides of the second roller group 115 respectively. The bracket assembly 118 is fixed on the upper end of the width limiting plate 117.

[0042] The material trays are neatly stacked on the AGV trolley and transported to the material tray loading mechanism 11 by the AGV trolley. The AGV trolley pushes the material trays onto the X-axis conveyor assembly 111, which then transports the material trays to the second roller group 115. The second lifting drive assembly 113 drives the second roller group 115 to rise, realizing the gradual lifting of the material trays. The battery cell handling robot 15 grabs the battery cells from the material trays and places them on the loading conveyor belt 14. Empty trays are transported by the empty tray handling robot 13 to the material tray unloading mechanism 12 for collection and unloading. While the second roller group 115 is still in the loading state, the AGV trolley transports the material. The material tray is conveyed on the X-axis conveyor assembly 111 to the top of the first roller group 114 and stops immediately. The first roller group 114 is then driven to rise by the first lifting drive assembly 112 to temporarily store the new batch of material trays. The AGV trolley can then leave to perform other processes. The bracket assembly 118 is used to support the bottommost material tray in the loading state, so that the second roller group 115 can be reset in advance. This allows the new batch of material trays to be pre-conveyed onto the second roller group 115 for the next batch of battery cells to be loaded. The advantage of this design is that it can reduce the standby time of the AGV trolley and the number of AGV trolleys purchased, thereby achieving the purpose of reducing manufacturing costs.

[0043] The bracket assembly 118 includes a Y-axis cylinder 1181, a movable bracket 1182, and a support plate 1183. The Y-axis cylinder 1181 is fixed above the width-limiting enclosure 117. The movable bracket 1182 is fixed to the power output end of the Y-axis cylinder 1181. The outer end of the support plate 1183 is fixed on the movable bracket 1182. The inner end of the support plate 1183 passes through the width-limiting enclosure 117. Multiple sets of support plates 1183 are arranged on the movable bracket 1182 in the left-right direction. The multiple sets of support plates 1183 and the multiple sets of rollers on the second roller group 115 are staggered. The material tray unloading mechanism 12 has the same structure as the material tray loading mechanism 11.

[0044] When only one tray remains on the feeding pallet, the remaining tray is positioned above the support plate 1183. The Y-axis cylinder 1181 drives the movable bracket 1182 to move inward, thereby moving the support plate 1183 inward and inserting it between the multiple sets of rollers on the second roller group 115. The support plate 1183 lifts the last layer of trays, allowing the second roller group 115 to reset in advance, thus improving feeding efficiency. The tray unloading mechanism 12 operates on the same principle as the tray loading mechanism 11, but in the reverse order.

[0045] The battery cell handling robot 15 includes a first X-axis drive assembly 151, a rotary drive assembly 152, a pitch adjustment assembly 153, a Z-axis cylinder 154, and a suction cup assembly 155. The first X-axis drive assembly 151 is mounted above the material tray loading mechanism 11 and the loading conveyor belt 14. The rotary drive assembly 152 is fixed to the power output end of the first X-axis drive assembly 151. The pitch adjustment assembly 153 is fixed to the power output end of the rotary drive assembly 152. Three sets of Z-axis cylinders 154 are arranged and fixed side by side on the pitch adjustment assembly 153. The pitch adjustment assembly 153 is used to adjust the spacing between the three sets of Z-axis cylinders 154. The suction cup assembly 155 is fixed to the power output end of the Z-axis cylinder 154 and corresponds to the area above the loading conveyor belt 14.

[0046] Z-axis cylinder 154 drives suction cup assembly 155 to descend, suction cup assembly 155 adsorbs the battery cells on the material tray, Z-axis cylinder 154 resets, then, driven by first X-axis drive assembly 151 and rotary drive assembly 152, the battery cells are moved above the feeding conveyor belt 14, the spacing between the gripped battery cells is adjusted to a preset value by the distance adjustment assembly 153, the battery cells are placed on the feeding conveyor belt 14, and the battery cells are transported to the next process by the feeding conveyor belt 14.

[0047] like Figures 6 to 9 As shown, the side voltage testing mechanism 04 includes a first lateral movement drive assembly 41, a first lateral movement bracket 42, a third lifting drive assembly 43, a first movable plate 44, an upper detection probe assembly 45, a lower detection probe assembly 46, an ejection drive assembly 47, a second movable plate 48, and a double-cutter assembly 49. The first lateral movement bracket 42 is fixed to the power output end of the first lateral movement drive assembly 41, and the first lateral movement drive assembly 41 drives the first lateral movement bracket 42 to move left and right. The third lifting drive assembly 43 is fixed on the first lateral movement bracket 42, and the first movable plate 44 is fixed to the power output end of the third lifting drive assembly 43. The first movable plate 44 is slidably connected to the first transverse support 42. The third lifting drive assembly 43 drives the first movable plate 44 to move up and down. The upper detection probe assembly 45 is fixed on the first movable plate 44. The lower detection probe assembly 46 is fixed on the first transverse support 42 and corresponds to the lower part of the upper detection probe assembly 45. The ejection drive assembly 47 is fixed on the lower side of the first transverse support 42 and the power output end faces the lower detection probe assembly 46. The second movable plate 48 is fixed on the power output end of the ejection drive assembly 47. The ejection drive assembly 47 drives the second movable plate 48 to move back and forth. The double cutter assembly 49 is fixed on the second movable plate 48.

[0048] The dual-cutter assembly 49 includes a horizontal adjustment motor 491, a first mounting base 492, a second mounting base 493, a first ejection cylinder 494, a second ejection cylinder 495, a first cutter 496, and a second cutter 497. The horizontal adjustment motor 491 is fixed to the second movable plate 48. The first mounting base 492 is fixed to the power output end of the horizontal adjustment motor 491 and is slidably connected to the second movable plate 48. The horizontal adjustment motor 491 drives the first mounting base 492 to move left and right. The second mounting base 493 is fixed to the second movable plate 48. The movable plate 48 is adjustable in position along the left and right directions. The first ejector cylinder 494 and the second ejector cylinder 495 are fixed on the first mounting base 492 and the second mounting base 493, respectively. The first cutter 496 and the second cutter 497 are fixed on the power output ends of the first ejector cylinder 494 and the second ejector cylinder 495, respectively. The first cutter 496 and the second cutter 497 correspond to the left and right sides of the lower detection probe assembly 46, respectively. The blades of the first cutter 496 and the second cutter 497 both face the lower detection probe assembly 46.

[0049] The current process transports the battery to the edge voltage testing mechanism 04. At this time, the battery tab is located between the upper detection probe assembly 45 and the lower detection probe assembly 46. The first lateral movement drive assembly 41 drives the first lateral movement bracket 42 to move left and right, so that the lower detection probe assembly 46 is directly below the tab. The lower detection probe assembly 46 rises to support the tab. Then, the third lifting drive assembly 43 drives the first movable plate 44 to descend, so that the upper detection probe assembly 45 approaches the tab. Then, the upper detection probe assembly 45 presses down on the tab, and the push-out drive assembly 47 drives the second movable plate 48 to move forward, causing the double-cut... The first cutter 496 and the second cutter 497 on the blade assembly 49 approach the top sealing edges on both sides of the electrode tab. The lateral adjustment motor 491 drives the first mounting base 492 to move, adjusting the distance between the first cutter 496 and the second cutter 497 to accommodate the measurement requirements of batteries of different sizes. Then, the first ejection cylinder 494 and the second ejection cylinder 495 respectively drive the first cutter 496 and the second cutter 497 forward to cut into the top sealing edge to perform a continuity test on the battery. If the continuity is not a problem, the battery's edge voltage is then tested through the upper detection probe assembly 45 and the lower detection probe assembly 46. The advantage of this design is that it uses dual cutters to simultaneously cut into the top sealing edge of the battery to test its continuity, which improves the effectiveness of the cutter entry and enhances the accuracy and stability of the test.

[0050] The upper detection probe assembly 45, the lower detection probe assembly 46, and the dual-cutter assembly 49 are each arranged in two sets along the left and right directions; this allows for simultaneous testing of two sets of batteries, improving testing efficiency.

[0051] The upper detection probe assembly 45 includes a first lifting cylinder 451, a first elastic telescopic member 452, a second elastic telescopic member 453, a front probe 454, and a rear probe 455. The first lifting cylinder 451 is fixed on the first movable plate 44 with its power output end facing downward. The first elastic telescopic member 452 and the second elastic telescopic member 453 are both fixed on the power output end of the first lifting cylinder 451. The front probe 454 and the rear probe 455 are respectively fixed on the first elastic telescopic member 452 and the second elastic telescopic member 453. The front probe 454 corresponds to the front side of the rear probe 455.

[0052] The first lifting cylinder 451 drives the front probe 454 and the rear probe 455 to descend, pressing them against the electrode tabs. The first elastic telescopic member 452 and the second elastic telescopic member 453 can buffer the front probe 454 and the rear probe 455 when they are pressed down, avoiding pressure on the electrode tabs and probes. By setting the front probe 454 and the rear probe 455 to contact the upper end face of the electrode tabs, the effectiveness of the contact is improved, and inaccurate test results are avoided due to poor contact.

[0053] The lower detection probe assembly 46 includes a second lifting cylinder 461 and a lower probe 462. The second lifting cylinder 461 is fixed on the first transverse support 42 with its power output end facing upward. The lower end of the lower probe 462 is fixed to the power output end of the second lifting cylinder 461, and the upper end of the lower probe 462 corresponds to the lower part of the upper detection probe assembly 45.

[0054] The second lifting cylinder 461 drives the lower probe 462 to rise, and the upper end face of the lower probe 462 is located below the electrode tab, supporting the electrode tab.

[0055] like Figures 10 to 12As shown, the voltage internal resistance testing mechanism 05 includes a second transverse drive assembly 51, a second transverse support 52, a fourth lifting drive assembly 53, a lifting slide 54, a lifting slide plate 55, a platform 56, an adjustment drive assembly 57, a first detection probe assembly 58, and a second detection probe assembly 59. The second transverse support 52 is fixed to the power output end of the second transverse drive assembly 51, and the second transverse drive assembly 51 drives the second transverse support 52 to move left and right. The fourth lifting drive assembly 53 and the lifting slide 54 are both fixed on the second transverse support 52, and the lifting slide plate 55 is fixed to the power output end of the fourth lifting drive assembly 53. The platform 56 is fixed on the lifting slide plate 55 and is slidably connected to the lifting slide plate 54. The platform 56 is provided with an upwardly protruding partition rib 561. The distance adjustment drive assembly 57 is fixed on the second transverse support 52. The first detection probe assembly 58 is fixed on the second transverse support 52 and the detection end corresponds to the upper left side of the partition rib 561. The second detection probe assembly 59 is fixed on the power output end of the distance adjustment drive assembly 57 and is slidably connected to the second transverse support 52. The second detection probe assembly 59 corresponds to the upper right side of the partition rib 561. The distance adjustment drive assembly 57 drives the second detection probe assembly 59 to move left and right.

[0056] In the current process, the battery is transported to the voltage and internal resistance testing mechanism 05. The tabs on the battery are positioned above the stage 56. The second lateral movement drive assembly 51 drives the second lateral movement bracket 52 to move left and right, positioning the separator rib 561 below and between the two sets of tabs on the battery. The fourth lifting drive assembly 53 drives the lifting slide 55 to rise on the lifting slide 54, aligning the upper surface of the stage 56 with the bottom of the tabs and the separator rib 561 between the two sets of tabs. Next, the distance adjustment drive assembly 57 adjusts the distance between the second detection probe assembly 59 and the first detection probe assembly 58 according to the position of the two sets of tabs. Then, the first detection probe assembly 58 and the second detection probe assembly 59 press the two sets of tabs on the battery onto the stage 56, and perform a voltage and internal resistance test on the battery. The advantage of this design is that the separator rib 561 prevents the two sets of tabs on the same battery from touching each other, avoiding short circuits caused by tab contact, preventing damage to the battery and testing equipment, and improving the accuracy and stability of the test.

[0057] The adjustable drive assembly 57 includes a rotary motor 571, a screw 572, a connecting block 573, a transverse slide 574, and a transverse sliding plate 575. The rotary motor 571 is fixed on the second transverse support 52, the screw 572 is fixed to the power output end of the rotary motor 571, the connecting block 573 is threadedly connected to the screw 572, the transverse slide 574 is fixed on the second transverse support 52, the transverse sliding plate 575 is fixed on the connecting block 573 and slidably connected to the transverse slide 574, and the second detection probe assembly 59 is fixed on the transverse sliding plate 575.

[0058] When it is necessary to adjust the distance between the second detection probe assembly 59 and the first detection probe assembly 58, the rotary motor 571 drives the screw 572 to rotate, thereby driving the transverse sliding plate 575 to move left and right on the transverse sliding table 574 through the connecting block 573, thereby adjusting the position of the second detection probe assembly 59.

[0059] The first detection probe assembly 58 includes a first pressing cylinder 581 and a first probe 582. The first pressing cylinder 581 is fixed on the second transverse support 52. The upper end of the first probe 582 is fixed to the power output end of the first pressing cylinder 581, and the lower end corresponds to the upper left side of the separator rib 561. The second detection probe assembly 59 includes a second pressing cylinder 591 and a second probe 592. The second pressing cylinder 591 is fixed on the transverse slide plate 575. The upper end of the second probe 592 is fixed to the power output end of the second pressing cylinder 591, and the lower end corresponds to the upper right side of the separator rib 561.

[0060] The first pressing cylinder 581 drives the first probe 582 to press one set of battery tabs onto the stage 56, and the second pressing cylinder 591 drives the second probe 592 to press the other set of battery tabs onto the stage 56.

[0061] The platform 56 is equipped with two sets of separating ribs 561, the second transverse support 52 is equipped with two sets of first detection probe assemblies 58, and the transverse slide plate 575 is equipped with two sets of second detection probe assemblies 59. This allows for simultaneous voltage and internal resistance detection of two sets of batteries, improving detection efficiency.

[0062] like Figures 13 to 15 As shown, the bipolar ear shaping mechanism 07 includes a mounting bracket 71, a lifting support platform 72, a Y-axis drive assembly 73, a mounting plate 74, a Z-axis drive assembly 75, a second X-axis drive assembly 76, a spring buffer assembly 77, and shaping rollers 78. The lifting support platform 72 is fixed on the mounting bracket 71. The Y-axis drive assembly 73 is fixed on the mounting bracket 71 with its power output end facing forward. The mounting plate 74 is fixed to the power output end of the Y-axis drive assembly 73 and is slidably connected to the mounting bracket 71. The Z-axis drive assembly 75 is fixed on the mounting plate 74 with its power output end facing downward. The second X-axis drive assembly 76... The power output end of the Z-axis drive assembly 75 is fixed, the upper end of the spring buffer assembly 77 is fixed to the power output end of the second X-axis drive assembly 76, and the shaping roller 78 is rotatably mounted on the lower end of the spring buffer assembly 77. The Z-axis drive assembly 75 and the second X-axis drive assembly 76 are each provided with two sets. Each set of the second X-axis drive assembly 76 is provided with two sets of spring buffer assemblies 77 and shaping rollers 78. The spring buffer assemblies 77 on one set of the second X-axis drive assembly 76 are spaced apart from the spring buffer assemblies 77 on the other set of the second X-axis drive assembly 76. All four sets of shaping rollers 78 correspond to the upper part of the lifting support platform 72.

[0063] When the current process transports the battery cell to the tab shaping mechanism, the lifting support platform 72 rises and supports the bottom of the battery tab. The Z-axis drive assembly 75 drives the spring buffer assembly 77 and the shaping roller 78 to descend. The shaping roller 78 presses against the upper surface of the tab. The Y-axis drive assembly 73 drives the mounting plate 74 to reciprocate back and forth, causing the shaping roller 78 to roll back and forth on the tab, thereby shaping the tab. This design sets two sets of Z-axis drive assembly 75 and two sets of second X-axis drive assembly 76, with each set having a second X-axis drive assembly 76. Each of the shaft drive assembly 76 is provided with two sets of spring buffer assemblies 77 and shaping rollers 78. The spring buffer assemblies 77 on one set of the second X-axis drive assembly 76 are spaced apart from the spring buffer assemblies 77 on the other set of the second X-axis drive assembly 76, which can shape the tabs of two sets of batteries at the same time. Moreover, by adjusting the distance between the shaping rollers 78 by the second X-axis drive assembly 76, it is possible to shape a single tab of the battery or both tabs of the battery, which results in higher shaping efficiency and greater flexibility of use.

[0064] The shaping roller 78 is made of zirconia ceramic, which has the advantages of high strength, high insulation, corrosion resistance and light weight.

[0065] The lifting support platform 72 includes a lifting motor 721, a Z-axis slide 722, a Z-axis slide plate 723, and a rolling platform 724. The lifting motor 721 and the Z-axis slide 722 are fixed on the mounting bracket 71. The Z-axis slide plate 723 is fixed to the power output end of the lifting motor 721 and is slidably connected to the Z-axis slide 722. The rolling platform 724 is fixed to the upper end of the Z-axis slide plate 723 and corresponds to the lower part of the shaping roller 78.

[0066] The lifting motor 721 drives the Z-axis slide plate 723 to run vertically on the Z-axis slide table 722, thereby causing the rolling platform 724 to move up and down. When shaping the electrode tab, the rolling platform 724 rises and supports the lower end face of the electrode tab.

[0067] The spring buffer assembly 77 includes a first slider 771, a second slider 772, a fixing block 773, and a compression spring 774. The first slider 771 is fixed to the power output end of the second X-axis drive assembly 76. The second slider 772 is slidably connected to the first slider 771 and can slide vertically on the first slider 771. The fixing block 773 is fixed to the upper end of the first slider 771. The upper end of the compression spring 774 is fixed to the fixing block 773, and the lower end of the compression spring 774 is fixed to the top of the second slider 772. The shaping roller 78 is rotatably mounted on the bottom of the second slider 772.

[0068] As soon as the shaping roller 78 contacts the tab, the compression spring 774 is compressed, which acts as a buffer for the shaping roller 78. When the shaping roller 78 rolls the tab, the compression spring 774 is in a compressed state, so that the shaping roller 78 applies a certain pressure to the tab, thereby shaping the tab.

[0069] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the technical scope of the present invention.

Claims

1. An automatic voltage internal resistance tester, characterized in that: The system includes a frame and a material tray loading / unloading system, a turntable, a loading robot, a side voltage testing mechanism, a voltage internal resistance testing mechanism, a single-tab shaping mechanism, a double-tab shaping mechanism, a tab cutting mechanism, a material unloading conveying mechanism, and a material unloading robot, all fixed on the frame. The material tray loading / unloading system and the turntable are respectively located on the left and right sides above the frame. The loading robot, the side voltage testing mechanism, the voltage internal resistance testing mechanism, the single-tab shaping mechanism, the double-tab shaping mechanism, the tab cutting mechanism, the material unloading conveying mechanism, and the material unloading robot are arranged sequentially on the outer periphery of the turntable along the conveying direction of the turntable. The loading robot is located between the material tray loading / unloading system and the turntable. The material tray loading and unloading system includes a material tray loading mechanism, a material tray unloading mechanism, an empty tray handling robot, a loading conveyor belt, and a battery cell handling robot. The material tray loading mechanism and the material tray unloading mechanism are arranged side by side in the front-to-back direction. The empty tray handling robot is mounted above the material tray loading mechanism and the material tray unloading mechanism. The loading conveyor belt is fixedly mounted on the right side of the material tray loading mechanism, and the battery cell handling robot is mounted above the material tray loading mechanism and the loading conveyor belt. The material tray feeding mechanism includes an X-axis conveying assembly, a first lifting drive assembly, a second lifting drive assembly, a first roller group, a second roller group, an adjusting base, a width limiting plate, and a bracket assembly. The X-axis conveying assembly is arranged in the left-right direction. The first lifting drive assembly is fixedly arranged on the left side of the X-axis conveying assembly. The first roller group is fixed to the power output end of the first lifting drive assembly. Two sets of the first roller group are provided, respectively corresponding to the front and rear sides of the left end of the X-axis conveying assembly. The second lifting drive assembly is fixedly arranged on the right side of the X-axis conveying assembly. The second roller group is fixed to the power output end of the second lifting drive assembly. Two sets of the second roller group are provided, respectively corresponding to the front and rear sides of the right end of the X-axis conveying assembly. The adjusting base is fixedly arranged on the right side of the X-axis conveying assembly. The lower end of the width limiting plate is fixed on the adjusting base and its position is adjustable in the front-rear direction. Two sets of the width limiting plate are provided, respectively corresponding to the front and rear sides of the second roller group. The bracket assembly is fixed to the upper end of the width limiting plate. The bracket assembly includes a Y-axis cylinder, a movable bracket, and a tray. The Y-axis cylinder is fixed above the width-limiting plate, the movable bracket is fixed to the power output end of the Y-axis cylinder, the outer end of the tray is fixed to the movable bracket, and the inner end of the tray passes through the width-limiting plate. Multiple sets of trays are arranged on the movable bracket in the left-right direction. The multiple sets of trays and the multiple sets of rollers on the second roller group are staggered. The material tray unloading mechanism has the same structure as the material tray loading mechanism.

2. The automatic voltage internal resistance tester according to claim 1, characterized in that: The battery cell handling robot includes a first X-axis drive assembly, a rotary drive assembly, a spacing adjustment assembly, a Z-axis cylinder, and a suction cup assembly. The first X-axis drive assembly is mounted above the material tray feeding mechanism and the feeding conveyor belt. The rotary drive assembly is fixed to the power output end of the first X-axis drive assembly. The spacing adjustment assembly is fixed to the power output end of the rotary drive assembly. Three sets of Z-axis cylinders are arranged side by side and fixed on the spacing adjustment assembly. The spacing adjustment assembly is used to adjust the spacing between the three sets of Z-axis cylinders. The suction cup assembly is fixed to the power output end of the Z-axis cylinder and corresponds to the area above the feeding conveyor belt.

3. An automatic voltage internal resistance tester according to claim 1, characterized in that: The side voltage testing mechanism includes a first lateral movement drive assembly, a first lateral movement bracket, a third lifting drive assembly, a first movable plate, an upper detection probe assembly, a lower detection probe assembly, an ejection drive assembly, a second movable plate, and a double-cutter assembly. The first lateral movement bracket is fixed to the power output end of the first lateral movement drive assembly, and the first lateral movement drive assembly drives the first lateral movement bracket to move left and right. The third lifting drive assembly is fixed to the first lateral movement bracket. The first movable plate is fixed to the power output end of the third lifting drive assembly and is slidably connected to the first lateral movement bracket. The third lifting drive assembly drives the first movable plate to move up and down. The upper detection probe assembly is fixed to the first movable plate. The lower detection probe assembly is fixed to the first lateral movement bracket and corresponds to the lower part of the upper detection probe assembly. The ejection drive assembly is fixed to the lower side of the first lateral movement bracket and its power output end faces the lower detection probe assembly. The second movable plate is fixed to the power output end of the ejection drive assembly, and the ejection drive assembly drives the second movable plate to move back and forth. The double-cutter assembly is fixed to the second movable plate. The dual-cutter assembly includes a horizontal adjustment motor, a first mounting base, a second mounting base, a first ejection cylinder, a second ejection cylinder, a first cutter, and a second cutter. The horizontal adjustment motor is fixed to the second movable plate. The first mounting base is fixed to the power output end of the horizontal adjustment motor and slidably connected to the second movable plate. The horizontal adjustment motor drives the first mounting base to move left and right. The second mounting base is fixed to the second movable plate and its position is adjustable in the left and right direction. The first ejection cylinder and the second ejection cylinder are respectively fixed to the first mounting base and the second mounting base. The first cutter and the second cutter are respectively fixed to the power output ends of the first ejection cylinder and the second ejection cylinder. The first cutter and the second cutter correspond to the left and right sides of the lower detection probe assembly, and the cutting edges of the first cutter and the second cutter both face the lower detection probe assembly.

4. An automatic voltage internal resistance tester according to claim 3, characterized in that: The upper detection probe assembly, the lower detection probe assembly, and the dual-cutter assembly are each provided in two sets along the left and right directions; The upper detection probe assembly includes a first lifting cylinder, a first elastic telescopic member, a second elastic telescopic member, a front probe, and a rear probe. The first lifting cylinder is fixed on the first movable plate with its power output end facing downward. The first elastic telescopic member and the second elastic telescopic member are both fixed on the power output end of the first lifting cylinder. The front probe and the rear probe are respectively fixed on the first elastic telescopic member and the second elastic telescopic member, and the front probe corresponds to the front side of the rear probe. The lower detection probe assembly includes a second lifting cylinder and a lower probe. The second lifting cylinder is fixed on the first transverse support with its power output end facing upward. The lower end of the lower probe is fixed to the power output end of the second lifting cylinder, and the upper end of the lower probe corresponds to the lower part of the upper detection probe assembly.

5. An automatic voltage internal resistance tester according to claim 1, characterized in that: The voltage internal resistance testing mechanism includes a second lateral movement drive assembly, a second lateral movement bracket, a fourth lifting drive assembly, a lifting slide, a lifting plate, a platform, an adjustment drive assembly, a first detection probe assembly, and a second detection probe assembly. The second lateral movement bracket is fixed to the power output end of the second lateral movement drive assembly, and the second lateral movement drive assembly drives the second lateral movement bracket to move left and right. The fourth lifting drive assembly and the lifting slide are both fixed to the second lateral movement bracket. The lifting plate is fixed to the power output end of the fourth lifting drive assembly and is slidably connected to the lifting slide. The platform is fixed to the lifting plate, and the platform is provided with upwardly protruding dividing ribs. The adjustment drive assembly is fixed to the second lateral movement bracket. The first detection probe assembly is fixed to the second lateral movement bracket, and its detection end corresponds to the upper left side of the dividing rib. The second detection probe assembly is fixed to the power output end of the adjustment drive assembly and is slidably connected to the second lateral movement bracket. The second detection probe assembly corresponds to the upper right side of the dividing rib, and the adjustment drive assembly drives the second detection probe assembly to move left and right.

6. An automatic voltage internal resistance tester according to claim 5, characterized in that: The adjustable drive assembly includes a rotary motor, a screw, a connecting block, a transverse slide, and a transverse sliding plate. The rotary motor is fixed on the second transverse support, the screw is fixed on the power output end of the rotary motor, the connecting block is threadedly connected to the screw, the transverse slide is fixed on the second transverse support, the transverse sliding plate is fixed on the connecting block and slidably connected to the transverse slide, and the second detection probe assembly is fixed on the transverse sliding plate. The first detection probe assembly includes a first clamping cylinder and a first probe. The first clamping cylinder is fixed on the second transverse support. The upper end of the first probe is fixed to the power output end of the first clamping cylinder, and the lower end corresponds to the upper left side of the separator rib. The second detection probe assembly includes a second clamping cylinder and a second probe. The second clamping cylinder is fixed on the transverse slide plate. The upper end of the second probe is fixed to the power output end of the second clamping cylinder, and the lower end corresponds to the upper right side of the separator rib. The platform is provided with two sets of the dividing ribs, the second transverse support is provided with two sets of the first detection probe assemblies, and the transverse slide is provided with two sets of the second detection probe assemblies.

7. An automatic voltage internal resistance tester according to claim 1, characterized in that: The bipolar ear shaping mechanism includes a mounting bracket, a lifting support platform, a Y-axis drive assembly, a mounting plate, a Z-axis drive assembly, a second X-axis drive assembly, a spring buffer assembly, and shaping rollers. The lifting support platform is fixed to the mounting bracket. The Y-axis drive assembly is fixed to the mounting bracket with its power output end facing forward. The mounting plate is fixed to the power output end of the Y-axis drive assembly and slidably connected to the mounting bracket. The Z-axis drive assembly is fixed to the mounting plate with its power output end facing downward. The second X-axis drive assembly is fixed to the power output end of the Z-axis drive assembly. The upper end of the spring buffer assembly is fixed to the power output end of the second X-axis drive assembly, and the shaping roller is rotatably mounted on the lower end of the spring buffer assembly. Two sets of the Z-axis drive assembly and the second X-axis drive assembly are provided. Two sets of the spring buffer assembly and the shaping roller are provided on each set of the second X-axis drive assembly. The spring buffer assembly on one set of the second X-axis drive assembly is spaced apart from the spring buffer assembly on the other set of the second X-axis drive assembly. All four sets of the shaping rollers correspond to the area above the lifting support platform. The shaping rollers are made of zirconia ceramic.

8. An automatic voltage internal resistance tester according to claim 7, characterized in that: The lifting support platform includes a lifting motor, a Z-axis slide, a Z-axis slide plate, and a rolling platform. The lifting motor and the Z-axis slide are fixed on the mounting bracket. The Z-axis slide plate is fixed to the power output end of the lifting motor and is slidably connected to the Z-axis slide. The rolling platform is fixed to the upper end of the Z-axis slide plate and corresponds to the lower part of the shaping roller.

9. An automatic voltage internal resistance tester according to claim 7, characterized in that: The spring buffer assembly includes a first slider, a second slider, a fixed block, and a compression spring. The first slider is fixed to the power output end of the second X-axis drive assembly. The second slider is slidably connected to the first slider and can slide vertically on the first slider. The fixed block is fixed to the upper end of the first slider. The upper end of the compression spring is fixed to the fixed block, and the lower end of the compression spring is fixed to the top of the second slider. The shaping roller is rotatably mounted on the bottom of the second slider.

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