Transfer equipment and electrical measurement system

Abstract

The present invention provides a transfer equipment and an electrical measurement system. The transfer equipment is used for automatic switching and transfer of pallets between AGVs and forklifts, realizing fully automatic logistics transportation, automatic and organic coordination between electrical measurement workpieces, and safe and reliable operation. The transfer equipment is provided with a positioning lifting slide, which can adapt to the different pallet and workpiece requirements of different production lines by adjusting the placement spacing of the positioning lifting slides. The forklift itself has poor accuracy in placing objects. The present invention can perform secondary precise positioning of the workpiece to meet the accuracy requirements of switching AGVs. The positioning lifting slide combination mode also completely avoids the AGV and forklift passages, avoiding the risk of forklift collision and having high safety. The positioning lifting slide takes into account the placement, positioning and lifting positioning functions, reduces the size of the equipment, and can be placed and installed more compactly.

Description

Technical Field

[0001] The patent of this invention relates to the field of battery electrical measurement application technology, and in particular to a transfer device and an electrical measurement system. Background Art

[0002] During the power battery production process, after the pack is assembled, electrical testing is required, requiring the pack to be moved to the testing area. Existing technology uses RGVs (Rail Guided Vehicles), also known as rail-guided vehicles or rail-guided shuttles, for this transfer. RGVs occupy a large aisle, require high investment, and have limited application scenarios. RGVs are affected by the size of the battery packs, resulting in low compatibility after selection. RGVs also have high procurement costs, long lead times for forks, long installation and commissioning cycles, and high maintenance costs. The need for laying tracks requires high surface flatness. RGVs lack flexibility, and site replacement requires the cost of re-laying tracks and cables. RGVs are slow and inefficient. If an RGV malfunctions, maintenance is limited due to space constraints, making manual intervention and material transport impossible. Material transfer between the testing area and the packing area is primarily accomplished by manual carts and AGVs, which then connect to the RGVs. However, due to the lack of fast compatibility between manual carts, AGVs, and RGVs, manual lifting and transfer are required, which is time-consuming and unsafe.

[0003] In the prior art, there is a method of transferring workpieces by using a positioning slide, but the positioning slide in the prior art can only play a positioning role. For example, the utility model patent with publication number: CN220055322U discloses a positioning slide device suitable for workpieces of multiple sizes, including a mounting platform, a guide assembly, a positioning table and a drive device; the guide assembly is arranged on the mounting platform; the positioning table is slidably connected to the guide assembly to move along the guide stroke of the guide assembly, the positioning table is provided with a support surface and a plurality of positioning columns of different sizes, the positioning columns are all arranged around the support surface, and the support surface and the different positioning columns can form different placement positions for positioning and placing workpieces of corresponding sizes; the drive device is connected to the positioning table in a transmission manner. During operation, the workpiece is placed on the positioning table, and the support surface and the plurality of positioning columns of different sizes are matched to form a plurality of different placement positions to accommodate workpieces of different sizes and models, that is, each placement position can position and place a type of workpiece, and the positioning of workpieces of multiple sizes and models can be satisfied without replacing the positioning table. However, for power battery electrical testing operations, long-distance transfer is required between the electrical testing area and the PACK area. Conventional drive devices cannot meet the requirements of long-distance transfer or are subject to space and usage cost constraints like RGV. Therefore, the positioning slide device provided by this patent application is only suitable for transfer between short-distance workstations. When it is necessary to cooperate with multiple transfer equipment for transfer, it lacks an adjustment device compatible with other transfer equipment, which makes it impossible to sequentially realize the handover and transfer between the workpiece and the transfer equipment. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art RGV, such as high cost of use, poor flexibility, and inability to achieve connection between different transfer equipment, and to provide a transfer device and an electrical measurement system.

[0005] In order to solve the problems of the prior art, the present invention is implemented by adopting the following technical solutions:

[0006] In a first aspect, the present invention discloses a transfer device, including a positioning and lifting slide, wherein the positioning and lifting slide includes a lifting and positioning assembly, a workpiece placement stand, a first direction correction slide, and a second direction correction slide;

[0007] The workpiece placement stand is used to place a workpiece pallet supporting a PACK workpiece;

[0008] The first direction correction slide is used to adjust the position of the workpiece pallet on the workpiece placement stand so that the workpiece pallet is located in the first transfer direction;

[0009] The second direction correction slide is used to adjust the position of the workpiece pallet on the workpiece placement stand so that the workpiece pallet is located in the second transfer direction;

[0010] The lifting and positioning assembly is used to lift and position the workpiece pallet at a desired transfer height after the transfer direction of the workpiece pallet is adjusted.

[0011] The technical effects achieved by the above settings are: the transfer equipment is equipped with two correction slides in different directions, so that correction in two transfer directions can be achieved. It is also equipped with a lifting and positioning component, which can adjust the height of the workpiece pallet according to the transfer equipment. The transfer equipment can automatically adapt to different transfer equipment to achieve the transfer of PACK workpieces. It can replace the RGV of the existing technology and realize the rapid handover and transfer between different transfer equipment, which can not only improve the transfer efficiency, but also reduce the transfer cost.

[0012] Furthermore, there are at least three positioning and lifting slides, and there are at least two positioning and lifting slides that are combined and paired with each other to realize the clamping positioning of the workpiece pallet in the first moving direction. At the same time, there are at least two positioning and lifting slides that are combined and paired with each other to realize the clamping positioning of the workpiece pallet in the second moving direction.

[0013] The technical effect achieved by the above setting is: at least three positioning lifting slides are configured. For the same transfer direction, two of the positioning lifting slides can cooperate with each other to lift the workpiece pallet supporting the PACK workpiece and complete the transfer and connection work.

[0014] Furthermore, it also includes a protective net, and all positioning and lifting slides are arranged in the transfer work area surrounded by the protective net.

[0015] The technical effect achieved by the above arrangement is that the guard net can protect the transfer equipment and avoid external collisions.

[0016] Furthermore, the guard net is provided with an entrance and an exit, and a safety grating is provided at the entrance and an exit for sensing the transfer equipment carrying the workpiece pallet, thereby controlling the orderly entry and exit of each transfer equipment.

[0017] The technical effect achieved by the above settings is: the safety grating is used to control the orderly entry and exit of the transfer equipment to avoid collisions of the transfer equipment.

[0018] Furthermore, the lifting and positioning assembly includes: a support plate, a slide seat, and a first driving mechanism; the support plate is arranged on the slide seat and can at least support the edge of the workpiece pallet;

[0019] The first driving mechanism can drive the slide to move upward, and lift the workpiece pallet upward through the support plate to separate from the workpiece placement stand to the desired transfer height.

[0020] The technical effect achieved by the above setting is: after adjusting the orientation of the workpiece pallet, the workpiece pallet is lifted to the desired transfer height, thereby matching the height of the transfer equipment and improving the transfer efficiency.

[0021] Furthermore, a positioning pin and a positioning block are provided on the support plate; the positioning pin is used to fix the workpiece pallet on the support plate after the positioning block positions the workpiece pallet;

[0022] Alternatively, the lifting and positioning assembly is further configured with a first limit block for limiting the movement of the slide within a preset stroke.

[0023] The technical effects achieved by the above arrangement are as follows: the workpiece pallet is accurately positioned by the positioning pin, the support plate and the positioning block, and the height to which the workpiece pallet is lifted is accurately controlled by the first limit block.

[0024] Furthermore, the lifting and positioning assembly also includes: a probe, a probe reset spring and a first proximity switch; the probe passes through the probe reset spring and extends out of the support surface of the support plate under the support of the probe reset spring. When the workpiece pallet is supported on the support surface of the support plate, the probe probes down to trigger the first proximity switch. When the first driving mechanisms of the lifting and positioning assemblies in multiple positioning lifting slides all receive the trigger signals of their respective first proximity switches, each lifting and positioning assembly starts to work synchronously.

[0025] The technical effect achieved by the above setting is: the workpiece pallet is sensed by the probe, and a trigger signal is sent through the first proximity switch to ensure that multiple positioning components work synchronously, avoiding the risk of overloading and tipping of the workpiece pallet.

[0026] Furthermore, the workpiece placement stand includes: a universal ball, a diffuse reflector and a lifting and positioning frame; the universal ball is arranged on the top of the lifting and positioning frame, and the spherical surface of the universal ball contacts the workpiece pallet to form a rolling support for the workpiece pallet;

[0027] The diffuse reflector is used to detect the position of the workpiece pallet to determine whether the first direction correction slide or the second direction correction slide adjusts the transfer direction of the workpiece pallet to the correct position.

[0028] The technical effects achieved by the above settings are: the friction is reduced by the rolling contact connection between the universal ball and the workpiece pallet, and the position of the workpiece pallet can be adjusted in any direction. The diffuse reflector can be used to detect whether the workpiece pallet has reached the predetermined position, which facilitates the precise positioning of the workpiece pallet.

[0029] Furthermore, the first direction correction slide comprises: a second driving mechanism, a lifting slide and a first pallet correction assembly;

[0030] The first pallet correction assembly is connected to the lifting slide; the second driving mechanism is used to drive the lifting slide to move up and down, so as to drive the first pallet correction assembly to move to the height of the workpiece pallet; the first pallet correction assembly is used to press the workpiece pallet and adjust the workpiece pallet to be located in the first moving direction;

[0031] The technical effects achieved by the above settings are: adjusting the position of the first pallet correction assembly through the second drive mechanism and the lifting slide; adjusting the position of the workpiece pallet through the first pallet correction assembly so that the workpiece pallet is located in the first transfer direction to adapt to the orientation of the corresponding transfer equipment.

[0032] Furthermore, the second direction correction slide includes: a support base, a second proximity switch and a second pallet correction component; the second proximity switch and the second pallet correction component are both arranged on the support base;

[0033] The second proximity switch is used to trigger the second proximity switch when the workpiece pallet enters the sensing area to activate the second pallet correction component, which is used to press the workpiece pallet and adjust the workpiece pallet to the second moving direction.

[0034] The technical effect achieved by the above setting is: the workpiece pallet carried by the corresponding transfer device is detected by the second proximity switch, and when the transfer device carries the workpiece pallet approaching, the second pallet correction component is triggered in time to adjust the orientation of the workpiece pallet to adapt to the transfer device.

[0035] Furthermore, at least one of the first pallet correction assembly and the second pallet correction assembly includes: a pressing block, a guide mechanism, a third driving mechanism and a limiting mechanism;

[0036] The output end of the third driving mechanism is in transmission connection with the pressing block; the guide mechanism is used to guide the output end of the third driving mechanism so that it drives the pressing block to press or release the workpiece pallet.

[0037] The technical effect achieved by the above arrangement is as follows: the third driving mechanism adopts a cylinder to drive the pressing block, which has a simple structure and is convenient for electrical control and synchronous control.

[0038] Furthermore, the guide mechanism includes: a connecting plate, a guide rod, a mounting seat and a bushing; the third driving mechanism is fixedly mounted on the mounting seat; the output end of the third driving mechanism is transmission-connected to the pressing block through the connecting plate;

[0039] The bushing is embedded in the mounting seat;

[0040] The guide rod passes through the bushing and is connected to the connecting plate.

[0041] The technical effect achieved by the above arrangement is that the driving direction of the third driving mechanism is precisely controlled by the guide rod.

[0042] Furthermore, it also includes a limiting mechanism for limiting the driving stroke of the third driving mechanism within a set range, and the limiting mechanism includes: a limiting seat and a third limiting member; the limiting seat is arranged on the mounting seat; the third limiting member can move synchronously with the guide rod, and the driving stroke is limited by sensing or touching the limiting seat.

[0043] The technical effects achieved by the above arrangement are: precise control of the driving stroke of the third driving mechanism is achieved through the limit mechanism; the third limit member adopts a hydraulic buffer to play a buffering role to avoid hard contact.

[0044] In a second aspect, the present invention further provides an electrical testing system, comprising an electrical testing mechanism and a turnover mechanism for realizing battery turnover between the electrical testing area and the PACK area; the turnover mechanism comprises: an AGV transfer assembly, a forklift, and the aforementioned transfer equipment; the AGV transfer assembly is used to transfer a workpiece pallet carrying batteries to be tested in the PACK area to the transfer equipment; and is used to transfer a workpiece pallet carrying batteries that have completed electrical testing, obtained from the transfer equipment, to the next workstation; the forklift is used to transfer a workpiece pallet carrying batteries to be tested in the transfer equipment to the electrical testing area; and is used to transfer a workpiece pallet carrying batteries that have completed electrical testing in the electrical testing area to the transfer equipment;

[0045] The transfer device is used to adjust the direction of the workpiece pallet to achieve the transfer of the workpiece pallet between the AGV transfer assembly and the forklift.

[0046] The technical effect achieved by the above settings is: it can replace the RGV system to execute the electrical measurement turnover process of the entire electrical measurement system, and save floor space and usage costs.

[0047] Furthermore, the AGV transfer assembly includes: a transfer vehicle, an AGV bracket and an AGV; the AGV is connected to the AGV bracket, the AGV bracket is used to support the transfer vehicle, and the transfer vehicle is used to support the workpiece pallet.

[0048] The technical benefits of this setup are: the transfer vehicle can transport workpiece pallets to any location, and then the AGV delivers them to the transfer equipment, improving the flexibility of pallet transportation. If the AGV fails, the transfer vehicle can move the pallet alone to meet production tasks, ensuring uninterrupted production on the production line.

[0049] Furthermore, the electrical testing mechanism includes: an electrical testing platform and a safety monitoring device; the electrical testing platform is a multi-layer structure for performing electrical testing on the battery; the safety monitoring device is used to monitor the battery status during the electrical testing process and issue an alarm signal when the battery status is abnormal.

[0050] The technical benefits of this setup are: The multi-layered structure of the test bench allows for additional stacking, doubling the area utilization of the test area after meeting forklift access height requirements. Safety monitoring equipment provides real-time battery monitoring, enabling timely detection of abnormalities and ensuring safe production.

[0051] The present invention has the beneficial effects:

[0052] 1. The transfer equipment of the present invention is equipped with two correction slides in different directions, so that correction in two transfer directions can be achieved. At the same time, it is also equipped with a lifting and positioning component, which can adjust the height of the workpiece pallet according to the transfer equipment. The transfer equipment can automatically adapt to different transfer equipment to achieve the transfer of PACK workpieces. It can replace the RGV of the existing technology and realize rapid handover and transfer between different transfer equipment, which can not only improve the transfer efficiency, but also reduce the operation and maintenance costs.

[0053] 2. The electrical measurement system of the present invention connects the AGV transfer assembly and the forklift through the transfer equipment. By using the AGV transfer assembly and the forklift to carry out the PACK line material handling solution, the transportation efficiency is improved; the flexibility of use is improved to meet the requirements of production line workpiece switching; no tracks are required, the repair and maintenance are convenient, the floor space is small, and the operating cost is low.

[0054] 3. The AGV transfer component of the electrical measurement system of the present invention supports the AGV through the AGV bracket. When the AGV fails, the transfer vehicle can be separated from the AGV bracket and move with the pallet alone to meet the production task, ensuring uninterrupted production of the production line.

[0055] 4. The electric test platform of the present invention is a multi-layer electric test platform. After meeting the forklift's fork height, the electric test platform can be stacked with additional layers, doubling the area utilization of the electric test area. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 A schematic structural diagram of a transfer device provided in an embodiment of the present invention;

[0057] Figure 2 This is a schematic diagram of the state of the AGV entering the transfer equipment in an embodiment of the present invention;

[0058] Figure 3 This is a schematic diagram of a state in which a forklift enters a transfer device according to an embodiment of the present invention;

[0059] Figure 4 for Figure 1 Schematic diagram of the lifting state of the middle positioning lifting slide;

[0060] Figure 5 for Figure 1 Schematic diagram of the structure of the central positioning lifting slide;

[0061] Figure 6 for Figure 1 Schematic diagram of the lifting and positioning component structure;

[0062] Figure 7 for Figure 1 A schematic diagram of the partially enlarged structure of the lifting and positioning assembly;

[0063] Figure 8 for Figure 1 Schematic diagram of the structure of the workpiece placement stand;

[0064] Figure 9 for Figure 4 Schematic diagram of the structure of the first direction correction slide;

[0065] Figure 10 for Figure 4 Schematic diagram of the structure of the second direction correction slide;

[0066] Figure 11 for Figure 9 and Figure 10 Schematic diagram of the structure of the middle tray correction component;

[0067] Figure 12 A schematic diagram of the structure of an electrical measurement system provided by an embodiment of the present invention;

[0068] Figure 13 for Figure 12 Schematic diagram of the top view of the CET system;

[0069] Figure 14 for Figure 12Schematic diagram of the AGV transfer component structure;

[0070] Figure 15 for Figure 12 Side view of the AGV transfer assembly;

[0071] Figure 16 for Figure 14 Schematic diagram of the workpiece pallet structure;

[0072] Figure 17 for Figure 12 Schematic diagram of the structure of the China Electric Testing Agency;

[0073] Figure 18 for Figure 17 Schematic diagram of the structure of the CEC test station;

[0074] Figure 19 for Figure 12 Schematic diagram of the forklift structure.

[0075] Reference numerals:

[0076] 100, AGV transfer assembly; 200, transfer equipment; 300, electrical measurement mechanism; 400, forklift; 210, safety grating; 220, protective net; 230, positioning lift slide; 110, PACK workpiece; 120, workpiece pallet; 130, transfer vehicle; 140, AGV bracket; 150, AGV; 121, friction plate; 122, pallet positioning hole; 123, pallet gear position; 250, lift positioning assembly; 260, workpiece placement stand; 270, first direction correction slide; 280, second direction correction slide; 251, positioning pin; 252, support plate; 253, positioning block; 254, slide; 255, first drive mechanism; 256, first limit block; 257, probe; 258, probe return spring; 259, first proximity switch Close; 261. Universal ball; 262. Diffuse reflector; 263. Lifting positioning frame; 271. Second driving mechanism; 272. Second limit block; 273. Lifting slide; 281. Support seat; 282. Second proximity switch; 290-1. First pallet correction assembly; 290-2. Second pallet correction assembly; 291. Pressing block; 292. Connecting plate; 293. Guide rod; 294. Limit seat; 295. Third limit block; 296. Third driving mechanism; 297. Hydraulic buffer; 298. Mounting seat; 299. Bushing; 310. Electrical measuring table; 320. Safety monitoring equipment; 330. Three-color light; 311. Flat pallet; 312. Electrical measuring frame; 313. Bottom electrical measuring frame; 314. Tooth position; 401. Fork frame tooth; 402. Bottom leg. DETAILED DESCRIPTION

[0077] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Example

[0078] like Figure 1 As shown, this embodiment provides a transfer device, including a positioning and lifting slide, which is used to position and lift the PACK workpiece to be transferred, so that the PACK workpiece can adapt to the position and height of the transfer device without human intervention, thereby improving the transfer efficiency.

[0079] See also Figure 4 、 5 6. The positioning and lifting slide 230 includes:

[0080] The workpiece placement stand 260 is used to place the workpiece pallet 120 supporting the PACK workpiece 110;

[0081] The first direction correction slide 270 is used to adjust the position of the workpiece pallet 120 on the workpiece placement platform 260 so that the workpiece pallet 120 is located in the first transfer direction;

[0082] The second direction correction slide 280 is used to adjust the position of the workpiece pallet 120 on the workpiece placement platform 260 so that the workpiece pallet 120 is located in the second transfer direction;

[0083] The lifting and positioning assembly 250 is used to lift the workpiece pallet 120 and position it at a desired transfer height after the transfer direction of the workpiece pallet 120 is adjusted.

[0084] In summary, the transfer equipment provided in the embodiment of the present invention is equipped with two correction slides in different directions, so that correction in two transfer directions can be achieved. At the same time, it is also equipped with a lifting and positioning component, which can adjust the height of the workpiece pallet according to the transfer equipment. The transfer equipment can automatically adapt to different transfer equipment to achieve the transfer of PACK workpieces. It can replace the RGV of the existing technology and realize rapid handover and transfer between different transfer equipment, which can not only improve the transfer efficiency, but also reduce the transfer cost.

[0085] As an embodiment of the present invention, in order to more reliably connect with two different direction transfer devices at the same time, at least three positioning and lifting slides can be provided, and there are at least two positioning and lifting slides 230 that are combined and matched with each other to realize the clamping and positioning of the workpiece pallet 120 in the first transfer direction. At the same time, there are at least two positioning and lifting slides 230 that are combined and matched with each other to realize the clamping and positioning of the workpiece pallet 120 in the second transfer direction. Assume that the three positioning and lifting slides are positioning and lifting slides A, positioning and lifting slide B, and positioning and lifting slide C, wherein positioning and lifting slide B can cooperate with positioning and lifting slide C to act on the workpiece pallet 120 in the first transfer direction by driving their respective first direction correction slides 270; positioning and lifting slide B can also cooperate with positioning and lifting slide A to act on the workpiece pallet 120 in the second transfer direction by driving their respective second direction correction slides 280.

[0086] See also Figure 1 In an embodiment of the present invention, four positioning and lifting slides are provided. When working, the four positioning and lifting slides can act on the four corners of the workpiece pallet respectively. The first direction correction slides of the four positioning and lifting slides work synchronously to realize the correction of the workpiece pallet 120 in the first moving direction. Similarly, the second direction correction slides of the four positioning and lifting slides can also work synchronously to realize the correction of the workpiece pallet 120 in the second moving direction.

[0087] To ensure the safety of the transfer process and avoid accidental collisions during the transfer process, in some embodiments, the positioning lift slide 230 can be restricted to a safe transfer area. Figure 1 , a protective net is used to protect the transfer area, and the protective net 220 is provided with an entrance and an exit, and a safety grating 210 is provided at the entrance and exit. The safety grating 210 is used to control the safe and orderly entry and exit of the transfer equipment.

[0088] Considering that there is no need to lay tracks and the transfer equipment has a high degree of automation, the transfer equipment provided in this embodiment can be used to connect the AGV transfer assembly 100 and the forklift 400 to transfer the PACK workpiece 110. Figure 2 As shown, the second direction correction slide 280 is used to adjust the AGV transfer direction of the workpiece pallet 120. The AGV transfer assembly 100 carries the workpiece pallet 120 to the center position of the four positioning and lifting slides 230. The four positioning and lifting slides 230 adjust the orientation of the workpiece pallet 120 and lift it, and the AGV transfer assembly 100 is disengaged. Figure 3As shown, the first direction correction slide 270 can be used to adjust the forklift picking direction of the workpiece pallet 120, and the forklift 400 picks up the workpiece pallet 120 from between two adjacent positioning and lifting slides 230; the workpiece pallet 120 is separated from the positioning and lifting slide 230. It should be understood that the AGV transfer assembly 100 and the forklift 400 in this embodiment can also be interchanged according to the actual workpiece to be transferred, and the transfer equipment provided in the embodiment of the present invention can also be applied to the connection of other different transfer equipment. The first transfer direction and the second transfer direction should be adaptively adjusted according to the setting orientation of the transfer equipment. The lifting range of the lifting positioning assembly can also be adjusted according to the height requirements of the transfer equipment.

[0089] like Figure 4 、 Figure 5 As shown, the bottom of each positioning lifting slide 230 is a fixed seat, on which are provided a lifting and positioning assembly 250, a workpiece placement platform 260, a first direction correction slide 270 and a second direction correction slide 280; the lifting and positioning assembly 250 is connected to the workpiece placement platform 260, and the workpiece placement platform 260 is used to place the workpiece pallet 120 supporting the PACK workpiece 110, and the lifting and positioning assembly 250 lifts the workpiece pallet 120 to a set height through the workpiece placement platform 260; the first direction correction slide 270 and the second direction correction slide 280 are respectively used to adjust the position of the workpiece pallet 120 on the workpiece placement platform 260; the driving directions of the first direction correction slide 270 and the second direction correction slide 280 are perpendicular. The first direction correction slide 270 and the second direction correction slide 280 can also work together to adjust the workpiece pallet 120 to the set position.

[0090] like Figure 6 As shown, the lifting and positioning assembly 250 includes: a positioning pin 251, a support plate 252, a positioning block 253, a slide 254, a first driving mechanism 255 and a first limit block 256; the first driving mechanism 255 is used to drive the slide 254 to move up and down, and the positioning pin 251, support plate 252 and positioning block 253 are all arranged on the top of the slide 254; the support plate 252 supports the four corners of the workpiece pallet 120, and the positioning block 253 is at a right angle, which guides the four corners of the workpiece pallet 120 and achieves precise positioning through the positioning pin 251; the first limit block 256 is arranged at the starting end and the end end of the preset stroke of the slide 254, and is used to limit the movement of the slide 254 within the preset stroke, so as to achieve precise control of the lifting height of the workpiece pallet 120.

[0091] like Figure 7As shown, the lifting and positioning assembly 250 also includes: a probe 257, a probe return spring 258 and a first proximity switch 259; the probe return spring 258 is arranged at the top of the slide 254, the probe 257 passes through the probe return spring 258, and the first proximity switch 259 is arranged below the probe 257. When the probe 257 is not under pressure, the probe 257 is pushed out of the support plate 252 by the probe return spring 258; when the support plate 252 supports the workpiece pallet 120, the probe 257 squeezes the probe return spring 258 and moves downward to trigger the first proximity switch 259. When the first driving mechanisms 255 of the lifting and positioning assemblies 250 in the multiple positioning lifting slides 230 all receive the trigger signals of their respective first proximity switches 259, each lifting and positioning assembly 250 starts to work synchronously; after the workpiece pallet 120 is transferred and detached by the transfer equipment, the probe return spring 258 pushes the probe 257 to reset. At this time, the first proximity switch 259 closes the first driving mechanism 255, and the slide 254 falls.

[0092] like Figure 8 As shown, the workpiece placement platform 260 includes: a universal ball 261, a diffuse reflector 262 and a lifting positioning frame 263; the universal ball 261 and the diffuse reflector 262 are both arranged on the top of the lifting positioning frame 263, the universal ball 261 is used to support the workpiece pallet 120, the first direction correction slide 270 and the second direction correction slide 280 can perform position correction on the workpiece pallet 120 supported by the universal ball 261; the diffuse reflector 262 is used to detect the position of the workpiece pallet 120, so as to determine whether the first direction correction slide 270 or the second direction correction slide 280 has adjusted the workpiece pallet 120 into place.

[0093] like Figure 9 As shown, the first-direction correction slide 270 includes: a second driving mechanism 271, a second limit block 272, a lifting slide 273, and a pallet correction assembly 290. The second driving mechanism 271 is used to drive the lifting slide 273 up and down. The second limit block 272 is provided at the starting and ending points of the preset travel of the lifting slide 273 to limit the movement of the lifting slide 273 within the preset travel. The first pallet correction assembly 290-1 is connected to the lifting slide 273. After the lifting slide 273 raises the first pallet correction assembly 290-1 to the set height, the first pallet correction assembly 290-1 presses and positions the workpiece pallet.

[0094] like Figure 10 As shown, the second direction correction slide 280 includes: a support seat 281, a second proximity switch 282 and a pallet correction assembly 290; the second proximity switch 282 and the second pallet correction assembly 290-2 are both arranged on the support seat 281; the second proximity switch 282 is connected to the second pallet correction assembly 290-2.

[0095] like Figure 11 As shown, the first pallet correction assembly 290-1 and the second pallet correction assembly 290-2 have the same structure, including: a pressure block 291, a connecting plate 292, a guide rod 293, a mounting seat 298, a bushing 299, a third drive mechanism 296, a limit seat 294, a third limit block 295, and a hydraulic buffer 297. The third drive mechanism 296 is connected to the pressure block 291 through a guide mechanism. The third drive mechanism 296 is used to drive the pressure block 291 to extend and retract. The limit mechanism is used to limit the extension and retraction stroke of the pressure block 291 to a set range. The bushing 299 is provided on the mounting seat 298, and the guide rod 293 passes through the bushing 299 to connect to the connecting plate 292. The third drive mechanism 296 drives the pressure block 291 to extend and retract via the guide rod 293. The third limit block 295 and hydraulic buffer 297 are respectively fixed to either side of the third drive mechanism 296. They move with the guide rod 293. The limit seat 294 is disposed on the mounting seat 298, and the limit seat 294 is in a relative position to the third limit block 295 and hydraulic buffer 297. Optionally, there are two guide rods 293, located on either side of the output end of the third drive mechanism 296. One end of each guide rod 293 is connected to the connecting plate 292, and the other end is connected to the mounting portion. The third limit block 295 and hydraulic buffer 297 are both disposed on the mounting portion. When the guide rod 293 is extended to a set length, the third limit block 295 and hydraulic buffer 297 collide with the limit seat 294, and the hydraulic buffer 297 acts as a buffer.

[0096] In this embodiment, the first driving mechanism 255, the second driving mechanism 271 and the third driving mechanism 296 all use cylinders, which have fast response speed and high reliability. Example

[0097] like Figure 12 、 Figure 13 As shown, this embodiment provides an electrical measurement system, including: an AGV transfer assembly 100, a forklift 400, an electrical measurement mechanism 300, and the transfer equipment 200 described in Example 1. The AGV transfer assembly 100 carries the workpiece pallet 120 supporting the PACK workpiece 110 and enters the transfer equipment 200. The transfer equipment 200 adjusts the orientation of the workpiece pallet 120 to adapt to the forklift 400. The forklift 400 forks the workpiece pallet 120 and transports it to the electrical measurement mechanism 300. After the PACK workpiece 110 completes the electrical measurement process, the forklift 400 forks the workpiece pallet 120 and returns to the transfer equipment 200. The transfer equipment 200 adjusts the orientation of the workpiece pallet 120 to adapt to the AGV transfer assembly 100. The AGV transfer assembly 100 carries the workpiece pallet 120 supporting the PACK workpiece 110 that has completed the electrical measurement process and transfers it to the next workstation.

[0098] like Figure 14 、 Figure 15 As shown, the AGV transfer assembly 100 includes a workpiece pallet 120, a transfer cart 130, an AGV bracket 140, and an AGV 150. The AGV 150 is connected to the AGV bracket 140, which supports the transfer cart 130, which in turn supports the workpiece pallet 120. "AGV" stands for "Automated Guided Vehicle." An AGV is a transport vehicle equipped with an automatic guidance device, such as an electromagnetic or optical one, capable of traveling along a prescribed guide path and possessing safety protection and various transfer functions. The AGV used in this embodiment is a latent type, allowing the transfer vehicle 130 to be mounted on the AGV bracket 140. The workpiece pallet 120 supporting the PACK workpiece 110 can be placed at any position on the transfer vehicle 130. The workpiece pallet 120 is then transferred to the AGV 150 via the transfer vehicle 130, which then proceeds to the next step according to the set travel schedule. Even if the AGV 150 fails, the transfer vehicle 130 can be removed from the AGV 150 for manual transfer, thus enhancing transfer flexibility.

[0099] like Figure 16 As shown, the workpiece pallet 120 has a pallet inserting slot 123 at its bottom to facilitate forklift 400 access. Friction plates 121 are located on either side of the pallet inserting slot 123. The support plates 252 support the friction plates 121, increasing the friction between the workpiece pallet 120 and the support plates 252. The workpiece pallet 120 has pallet positioning holes 122 that cooperate with the positioning pins 251 for precise positioning.

[0100] like Figure 17 As shown, the electrical testing mechanism 300 includes an electrical testing platform 310 and a safety monitoring device 320. The electrical testing platform 310 is used to perform electrical testing on the PACK workpiece 110. The safety monitoring device 320 is used to monitor the status of the PACK workpiece 110 and issue an alarm signal when the PACK workpiece 110 is abnormal. The electrical testing mechanism 300 also includes a three-color light 330, which emits the alarm signal. The electrical testing platforms 310 are arranged in two opposing rows, with a forklift access channel in between.

[0101] like Figure 18As shown, the electrical testing table 310 is a multi-layer structure, including an upper electrical testing frame 312 and a bottom electrical testing frame 313. Each layer of the electrical testing frame can be used to place a workpiece pallet 120, saving floor space. In addition to the above-mentioned workpiece pallet 120, the pallet in the electrical testing frame can also be in the form of a flat pallet 311 without a spline position at the bottom. Since there is no spline position at the bottom, the height of the flat pallet 311 is lower than the workpiece pallet 120. In order to accommodate the flat pallet 311, a spline position 314 can be provided on the electrical testing frame. The spline position 314 is provided on the bottom plate of each layer of the electrical testing frame, so the height of each layer of the electrical testing frame is not increased. Therefore, the placement of the flat pallet 311 allows more layers of electrical testing frames to be set up under limited height conditions.

[0102] like Figure 19 As shown, the forklift 400 used in this embodiment is an automatic forklift, with bottom legs 402 for support at the bottom and fork frame tines 401 with adjustable vertical positions at the top.

[0103] The electrical measurement system provided by the embodiments of the present invention can replace the RGV system to execute the entire electrical measurement turnover process of the electrical measurement system. It should be understood that the transfer routes of the AGV transfer assembly 100 and the forklift 400 can be adaptively adjusted based on the location of the transfer equipment 200, the electrical measurement mechanism 300, and other equipment in the field. Example

[0104] This embodiment provides the workflow of the electrical measurement system described in Example 2:

[0105] The workflow of the pallet from AGV to the electrical testing station:

[0106] The AGV 150 on the AGV transfer assembly 100 moves with the transfer vehicle 130 and workpiece pallet 120, using the AGV bracket 140. Pins precisely position the three components. The PACK workpiece 110 is secured to the workpiece pallet 120, and together they move along the AGV track. When the AGV transfer assembly 100 enters the transfer facility 200, signals are exchanged between the two. The safety light barrier 210 on the protective net 220 clears the AGV 150. Because the positioning accuracy of the AGV 150 meets the requirements for automatic positioning, the positioning assembly 250 on the lift slide 230 lifts the workpiece pallet 120. The positioning block 253 contacts the friction plate 121 of the workpiece pallet 120, guiding it. After a slight correction, the friction plate 121 rests on the support plate 252. The probe 257, permanently lifted by the probe return spring 258, contacts the friction plate 121, pressing down on the first proximity switch 259, triggering a signal to drop the workpiece pallet 120 onto the support plate 252. The transfer facility 200 has four positioning and lifting slides 230, which together lift the workpiece pallet 120, releasing it from the transfer vehicle 130. The AGV 150 can now leave the transfer facility 200, carrying the transfer vehicle 130 with it.

[0107] A forklift 400 enters the transfer facility 200 to pick up the workpiece. Signals are exchanged between the forklift 400 and the transfer facility 200, and the safety light barrier 210 on the protective net 220 allows the forklift 400 to pass. After the forklift 400 enters the transfer facility 200, the fork frame's tine 401 engages the pallet tine position 123 of the workpiece pallet 120, lifting the workpiece pallet 120 and removing it from the transfer facility 200.

[0108] The forklift 400 carries the workpiece pallet 120 and the PACK workpiece 110 into the electrical testing mechanism 300. The pallet workpiece 120 is placed centrally on the electrical testing table 310. After placing the workpiece pallet 120, the forklift 400 leaves the electrical testing mechanism 300 to proceed to the next step.

[0109] If a forklift 400 carrying a workpiece pallet 120 and a packed workpiece 110 encounters an accident, or if an abnormality occurs during electrical testing, the safety monitoring device 320 detects the corresponding temperature of the packed workpiece 110 and a tri-color indicator 330 sounds an alarm. The safety monitoring device 320 monitors the electrical testing station 310 across the forklift aisle, and a single safety monitoring device 320 can monitor multiple packed workpieces 110 simultaneously.

[0110] The workflow of the pallet from the electrical testing station to the AGV:

[0111] When the electrical test is completed, the forklift 400 enters the electrical test mechanism 300 to pick up the workpiece pallet 120 and the PACK workpiece 110. After the picking action is completed, the forklift 400 returns to the transfer device 200.

[0112] Due to the large placement error of the forklift 400, the diffuse reflector 262 detects that the workpiece pallet 120 is in a safe position. The forklift 400's fork tine 401 places the workpiece pallet 120 on the workpiece placement platform 260 of the positioning lift slide 230, and the forklift 400 then leaves. At this time, the universal ball 261 on the positioning frame 263 is lifted to support the friction plate 121 on the workpiece pallet 120, allowing the pallet to move freely.

[0113] The second pallet correction assembly 290 of the second direction correction slide 280 of the positioning lifting slide 230 extends the clamping block 291 to clamp and position the workpiece pallet 120 so that the pallet is placed in the center.

[0114] The lifting positioning assembly 250 of the positioning lifting slide 230 is lifted. The positioning block 253 contacts the friction plate 121 of the workpiece pallet 120 and guides the workpiece pallet 120, and then slightly corrects it. The friction plate 121 falls on the support plate 252. The probe 257 contacts the friction plate 121 and presses down, giving a signal to the first proximity switch 259, and then the workpiece pallet 120 falls onto the support plate 252. The four positioning lifting slides 230 of the transfer equipment 200 lift the workpiece pallet 120 together. Then the AGV transfer assembly 100 enters the center position of the transfer equipment 200, and the positioning lifting slide 230 falls synchronously. The pallet positioning hole 122 on the workpiece pallet 120 docks with the transfer vehicle 130 and falls onto the AGV bracket 140. At this time, the AGV transfer assembly 100 leaves the transfer equipment 200 and enters the next workstation.

[0115] The electrical measurement system workflow provided by the embodiment of the present invention should be understood that the order of the workflow can be adaptively adjusted according to operational requirements.

[0116] It should be noted that, in this document, relational terms such as first and second are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. Furthermore, in the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present invention. Furthermore, in the drawings of the present invention, fill patterns are used solely to distinguish layers and do not constitute any other limitation.

[0117] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A transfer device, characterized in that: It comprises a positioning and lifting slide (230), wherein the positioning and lifting slide (230) comprises a lifting and positioning component (250), a workpiece placement stand (260), a first direction correction slide (270) and a second direction correction slide (280); The workpiece placement stand (260) is used to place a workpiece pallet (120) supporting a PACK workpiece (110); The first direction correction slide (270) is used to adjust the position of the workpiece pallet (120) on the workpiece placement stand (260) so that the workpiece pallet (120) is located in the first transfer direction; The second direction correction slide (280) is used to adjust the position of the workpiece pallet (120) on the workpiece placement stand (260) so that the workpiece pallet (120) is located in the second transfer direction; The lifting and positioning assembly (250) is used to lift and position the workpiece pallet (120) at a desired transfer height after the transfer direction of the workpiece pallet (120) is adjusted; The first direction correction slide (270) comprises: a second drive mechanism (271), a lifting slide (273) and a first pallet correction assembly (290-1); The first pallet correction component (290-1) is connected to the lifting slide (273); The second driving mechanism (271) is used to drive the lifting slide (273) to move up and down, so as to drive the first pallet correction component (290-1) to move to a height that matches the workpiece pallet (120); The first pallet correction component (290-1) is used to press the workpiece pallet (120) and adjust the workpiece pallet (120) to be located in a first transfer direction.

2. The transfer equipment according to claim 1, characterized in that: There are at least three positioning and lifting slides (230), and at least two positioning and lifting slides (230) are combined and paired with each other to realize the clamping positioning of the workpiece pallet (120) in the first transfer direction. At the same time, there are at least two positioning and lifting slides (230) that are combined and paired with each other to realize the clamping positioning of the workpiece pallet (120) in the second transfer direction.

3. The transfer equipment according to claim 1, characterized in that: It also includes a protective net (220), and all positioning and lifting slides (230) work in a transfer working area surrounded by the protective net (220).

4. The transfer equipment according to claim 3, characterized in that: The guard net (220) is provided with an entrance and an exit, and a safety grating (210) is provided at the entrance and exit for sensing a transfer device carrying a workpiece pallet (120), thereby controlling the orderly entry and exit of each transfer device.

5. The transfer equipment according to claim 1, characterized in that: The lifting and positioning assembly (250) comprises: a support plate (252), a slide seat (254), and a first driving mechanism (255); The support plate (252) is arranged on the slide seat (254) and is capable of providing support for at least the edge of the workpiece pallet (120); The first driving mechanism (255) is capable of driving the slide (254) to move upward, and lifting the workpiece pallet (120) upward via the support plate (252) to separate from the workpiece placement stand (260) to the desired transfer height.

6. The transfer equipment according to claim 5, characterized in that: A positioning pin (251) and a positioning block (253) are provided on the support plate (252); the positioning pin (251) is used to fix the workpiece pallet (120) on the support plate (252) after the positioning block (253) positions the workpiece pallet (120); Alternatively, the lifting and positioning assembly (250) is further configured with a first limit block (256) for limiting the movement of the slide (254) within a preset stroke.

7. The transfer equipment according to claim 5, characterized in that: The lifting and positioning assembly (250) further includes: a probe (257), a probe return spring (258) and a first proximity switch (259); the probe (257) passes through the probe return spring (258) and extends out of the support surface of the support plate (252) under the support of the probe return spring (258); when the workpiece pallet (120) is supported on the support surface of the support plate (252), the probe (257) moves downward to trigger the first proximity switch (259); when the first driving mechanisms (255) of the lifting and positioning assemblies (250) in the multiple positioning and lifting slides (230) all receive the triggering signals of their respective first proximity switches (259), each lifting and positioning assembly (250) starts to work synchronously.

8. The transfer equipment according to claim 1, characterized in that: The workpiece placement stand (260) includes a universal ball (261), a diffuse reflector (262), and a lifting and positioning frame (263); The universal ball (261) is arranged on the top of the lifting positioning frame (263), and the spherical surface of the universal ball (261) contacts the workpiece pallet (120) to form a rolling support for the workpiece pallet (120); The diffuse reflector (262) is used to detect the position of the workpiece pallet (120) to determine whether the first direction correction slide (270) or the second direction correction slide (280) adjusts the transfer direction of the workpiece pallet (120) to the correct position.

9. The transfer equipment according to claim 1, characterized in that: The second direction correction slide (280) comprises: a support seat (281), a second proximity switch (282) and a second pallet correction assembly (290-2); The second proximity switch (282) and the second pallet correction assembly (290-2) are both provided on the support seat (281); The second proximity switch (282) is used to trigger the second pallet correction component (290-2) when the workpiece pallet (120) enters the sensing area, so that the second pallet correction component (290-2) presses the workpiece pallet (120) and adjusts the workpiece pallet (120) to be located in a second transfer direction.

10. The transfer equipment according to claim 9, characterized in that: At least one of the first pallet correction assembly (290-1) and the second pallet correction assembly (290-2) comprises: a pressing block (291), a guide mechanism, a third driving mechanism (296), and a limiting mechanism; The output end of the third driving mechanism (296) is in transmission connection with the pressing block (291); the guide mechanism is used to guide the output end of the third driving mechanism (296) so that it drives the pressing block (291) to press or release the workpiece pallet (120).

11. The transfer equipment according to claim 10, characterized in that: The guide mechanism comprises: a connecting plate (292), a guide rod (293), a mounting seat (298) and a bushing (299); The third driving mechanism (296) is fixedly mounted on the mounting seat (298); the output end of the third driving mechanism (296) is transmission-connected to the pressing block (291) via the connecting plate (292); The bushing (299) is embedded in the mounting seat (298); The guide rod (293) passes through the bushing (299) and is connected to the connecting plate (292).

12. The transfer equipment according to claim 11, characterized in that: It also includes a limiting mechanism for limiting the driving stroke of the third driving mechanism (296) within a set range, and the limiting mechanism includes: a limiting seat (294), a third limiting member; The limiting seat (294) is provided on the mounting seat (298); The third limiting member can move synchronously with the guide rod (293) and limit the driving stroke of the third driving mechanism (296) by sensing or touching the limiting seat (294).

13. A battery electrical measurement system, characterized in that: It includes an electrical measuring mechanism and a turnover mechanism for realizing battery turnover between the electrical measuring area and the PACK area; The turnover mechanism comprises: an AGV transfer assembly (100), a forklift (400), and a transfer device (200) according to any one of claims 1 to 12; The AGV transfer assembly (100) is used to transfer a workpiece pallet (120) carrying batteries to be tested from the PACK area to the transfer equipment (200); and to transfer a workpiece pallet (120) carrying batteries that have completed electrical testing and obtained from the transfer equipment to the next workstation; The forklift (400) is used to transfer the workpiece pallet (120) carrying the battery to be tested from the transfer equipment (200) to the electrical testing area; and is used to transfer the workpiece pallet (120) carrying the battery after electrical testing from the electrical testing area to the transfer equipment (200); The transfer device (200) is used to adjust the direction of the workpiece pallet (120) to achieve transfer of the workpiece pallet (120) between the AGV transfer assembly (100) and the forklift (400).

14. The electrical measurement system according to claim 13, characterized in that: The AGV transfer assembly (100) comprises: a transfer vehicle (130), an AGV bracket (140), and an AGV (150); the transfer vehicle (130) is supported on the AGV (150) via the AGV bracket (140), and the transfer vehicle (130) is used to support a workpiece pallet (120).

15. The electrical measurement system according to claim 13 or 14, characterized in that: The electrical testing mechanism (300) comprises: an electrical testing platform (310) and a safety monitoring device (320); the electrical testing platform (310) is a multi-layer structure and is used for performing electrical testing on batteries; the safety monitoring device (320) is used for monitoring the battery status during the electrical testing process and issuing an alarm signal when the battery status is abnormal.

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