Transfer equipment and electrical testing system

Abstract

According to the transfer equipment and the electrical logging system provided by the invention, the transfer equipment is used for automatically switching and transferring a tray between an AGV and a forklift, automatic organic coordination between full-automatic logistics conveying and electrical logging workpieces is realized, and the operation is safe and reliable. The transfer equipment is provided with the positioning and lifting sliding tables, and the requirements of different trays and workpieces of different production lines can be met by adjusting the placing distance of the positioning and lifting sliding tables. The forklift is poor in object placing precision, secondary accurate positioning can be carried out on workpieces, and the precision requirement of AGV switching is met. And the AGV and the forklift channel are completely avoided through the positioning lifting sliding table combination mode, the collision risk of the forklift is avoided, and safety is high. The positioning and lifting sliding table integrates the functions of placing, positioning and lifting positioning, the size of the equipment is reduced, and the equipment can be placed and installed in a smaller and exquisite mode.

Description

Technical Field

[0001] The invention patent 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] In the production process of power batteries, after the PACK is assembled, electrical testing needs to be carried out, and the electrical testing package needs to be moved to the electrical testing area; the existing technology uses RGV for transfer, which is the abbreviation of Rail Guided Vehicle, also known as rail-guided vehicle or rail shuttle. The RGV channel occupies a large area, has high investment, and is limited in usage scenarios; RGV is affected by the size of the battery pack and has low compatibility after selection; RGV has high procurement costs, long fork delivery period, long installation and commissioning cycle, high maintenance costs, and high requirements for ground flatness due to the need to lay tracks on the ground; RGV has poor flexibility, and site replacement requires re-laying of tracks and cables to increase costs; RGV runs slowly and has low efficiency; RGV fails, is restricted by space, has limited maintenance space, and cannot be manually intervened to transport materials; the electrical testing area and the PACK area mainly use manual carts and AGVs for material turnover and then docking with RGVs. Since manual carts, AGVs and RGVs are not quickly compatible, they need to be manually hoisted for handover and transfer, 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, such as: the utility model patent with the 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 driving 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, and 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 driving device is connected to the positioning table in a transmission manner. When working, 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 adapt to 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 long-distance transfer or are restricted by space and usage costs like RGV. Therefore, the positioning slide device provided in this patent application is only suitable for transfer between short-distance workstations. When it is necessary to cooperate with multiple transfer equipment for transportation, 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 devices, 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: 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; The workpiece placement stand is used to place a workpiece pallet supporting a PACK workpiece; 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; 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; 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.

[0006] The technical effect achieved by the above settings is: the transfer equipment is equipped with two correction slides in different directions, so as to realize correction in two transfer directions. 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 realize 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.

[0007] 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 achieve clamping and positioning of the workpiece pallet in the first transfer direction. At the same time, there are at least two positioning and lifting slides that are combined and paired with each other to achieve clamping and positioning of the workpiece pallet in the second transfer direction.

[0008] The technical effect achieved by the above arrangement is: at least three positioning and lifting slides are configured, and for the same transfer direction, two of the positioning and lifting slides cooperate with each other to lift the workpiece pallet supporting the PACK workpiece, thereby completing the transfer and connection work.

[0009] 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.

[0010] The technical effect achieved by the above arrangement is that the protective net can protect the transfer equipment and avoid external collision.

[0011] Furthermore, the protective net is provided with an entrance and an exit, and a safety grating is provided at the entrance and an exit for sensing a transfer device carrying a workpiece pallet, thereby controlling the orderly entry and exit of each transfer device.

[0012] The technical effect achieved by the above settings: the safety grating is used to control the orderly entry and exit of the transfer equipment to avoid collision of the transfer equipment.

[0013] Furthermore, the lifting and positioning assembly comprises: 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; 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 until it reaches the desired transfer height.

[0014] The technical effect achieved by the above arrangement is: after adjusting the position 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.

[0015] 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; Alternatively, the lifting and positioning assembly is further configured with a first limit stopper for limiting the movement of the slide within a preset stroke.

[0016] The technical effect achieved by the above arrangement is 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 stop.

[0017] 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 supporting surface of the support plate under the support of the probe reset spring, and when the workpiece pallet is supported on the supporting surface of the support plate, the probe reaches down to trigger the first proximity switch, and 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.

[0018] 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.

[0019] Furthermore, the workpiece placement stand comprises: 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; 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.

[0020] The technical effects achieved by the above settings are as follows: 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 detect whether the workpiece pallet has reached the predetermined position, which facilitates the precise positioning of the workpiece pallet.

[0021] Further, the first direction correction slide comprises: a second driving mechanism, a lifting slide and a first tray correction assembly; 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 transfer direction; The technical effect achieved by the above arrangement is: the position of the first pallet correction assembly is adjusted by the second driving mechanism and the lifting slide; the position of the workpiece pallet is adjusted by 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.

[0022] Furthermore, the second direction correction slide comprises: a support seat, a second proximity switch and a second pallet correction assembly; the second proximity switch and the second pallet correction assembly are both arranged on the support seat; The second proximity switch is used to trigger the second proximity switch when the workpiece pallet enters the sensing area to enable the second pallet correction component to work. The second pallet correction component is used to press the workpiece pallet and adjust the workpiece pallet to be located in the second transfer direction.

[0023] The technical effect achieved by the above arrangement is as follows: the workpiece pallet carried by the corresponding transfer device is detected by the second proximity switch, and when the workpiece pallet carried by the transfer device approaches, the second pallet correction component is triggered in time to adjust the orientation of the workpiece pallet to adapt to the transfer device.

[0024] Further, at least one of the first tray correction assembly and the second tray correction assembly comprises: a pressing block, a guide mechanism, a third driving mechanism and a limiting mechanism; The output end of the third driving mechanism is drivingly connected to the pressing block; the guiding 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.

[0025] The technical effect achieved by the above arrangement is as follows: the third driving mechanism adopts a cylinder to drive the clamping block, which has a simple structure and is convenient for electrical control and synchronous control.

[0026] Further, the guide mechanism comprises: 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; The bushing is embedded in the mounting seat; The guide rod passes through the bushing and is connected to the connecting plate.

[0027] The technical effect achieved by the above arrangement is: the driving direction of the third driving mechanism is precisely controlled by the guide rod.

[0028] 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.

[0029] The technical effects achieved by the above arrangement are as follows: accurate 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.

[0030] 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 an electrical testing area and a PACK area; the turnover mechanism comprises: an AGV transfer assembly, a forklift, and the above-mentioned 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 and obtained from the transfer equipment to a 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; 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 component and the forklift.

[0031] 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 use costs.

[0032] 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 a workpiece pallet.

[0033] The technical effect achieved by the above settings is: the transfer vehicle can transport the workpiece pallet to any location, and then transport the workpiece pallet to the transfer equipment through the AGV, which improves the flexibility of workpiece pallet transportation. When the AGV fails, the transfer vehicle can move the pallet alone to meet the production task, ensuring uninterrupted production of the production line.

[0034] Furthermore, the electrical testing mechanism includes: an electrical testing platform and a safety monitoring device; the electrical testing platform is a multi-layer structure and is used to perform electrical testing on the battery; the safety monitoring device is used to monitor the battery status during the electrical testing process and send out an alarm signal when the battery status is abnormal.

[0035] The technical effect achieved by the above settings is: after the multi-layer structure of the electric test bench meets the forklift height, the electric test bench can be stacked with additional layers, and the area utilization rate of the electric test area is doubled. The safety monitoring equipment monitors the battery in real time, which is convenient for timely detection of abnormal conditions of the battery and safe production.

[0036] The present invention has the beneficial effects: 1. The transfer equipment of the present invention is equipped with two correction slides in different directions, so as to realize correction in two transfer directions. 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 realize the transfer of PACK workpieces. It can replace the RGV of the prior art and realize the rapid handover and transfer between different transfer equipment, which can not only improve the transfer efficiency, but also reduce the operation and maintenance costs.

[0037] 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 footprint is small, and the operating cost is low.

[0038] 3. The AGV transfer component of the electrical measurement system of the present invention, the transfer vehicle is supported on the AGV through the AGV bracket. When the AGV fails, the transfer vehicle can be detached from the AGV bracket and move with the pallet alone to meet the production task, ensuring uninterrupted production of the production line.

[0039] 4. The electric test bench of the present invention is a multi-layer electric test bench. After the forklift height is met, the electric test bench can be stacked with additional layers, and the area utilization rate of the electric test area is doubled. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of the structure of a transfer device provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the state of the AGV entering the transfer equipment in an embodiment of the present invention; Figure 3 This is a schematic diagram of a state where a forklift enters a transfer device in an embodiment of the present invention; Figure 4 for Figure 1 Schematic diagram of the lifting state of the middle positioning lifting slide; Figure 5 for Figure 1 Structural diagram of the middle positioning lifting slide; Figure 6 for Figure 1 Schematic diagram of the lifting and positioning assembly structure; Figure 7 for Figure 1 A partial enlarged structural diagram of the lifting and positioning assembly; Figure 8 for Figure 1 The structural diagram of the workpiece placement stand; Fig. 9 for Figure 4 A schematic diagram of the structure of the first direction correction slide; Fig.10 for Figure 4 A schematic diagram of the structure of the second direction correction slide; Fig.11 for Fig. 9 and Fig.10 Schematic diagram of the structure of the middle tray correction assembly; Fig.12 A schematic diagram of the structure of an electrical measurement system provided by an embodiment of the present invention; Fig.13 for Fig.12 Schematic diagram of the top view of the CEC system; Fig.14 for Fig.12 Schematic diagram of the AGV transfer component structure; Fig.15 for Fig.12 Side view of the AGV transfer assembly; Fig.16 for Fig.14 Schematic diagram of the structure of the workpiece pallet; Fig.17 for Fig.12 Schematic diagram of the structure of the China Electric Test Mechanism; Fig.18 for Fig.17 Schematic diagram of the structure of the China Electric Test Station; Fig.19 for Fig.12 Schematic diagram of the forklift structure.

[0041] Reference numerals: 100, AGV transfer assembly; 200, transfer equipment; 300, electrical measurement mechanism; 400, forklift; 210, safety grating; 220, protective net; 230, positioning and lifting slide; 110, PACK workpiece; 120, workpiece pallet; 130, transfer vehicle; 140, AGV bracket; 150, AGV; 121, friction plate; 122, pallet positioning hole; 123, pallet tooth insertion 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 stopper; 257, probe; 258, probe reset spring; 259, first approach opening off; 261, universal ball; 262, diffuse reflector; 263, lift positioning frame; 271, second drive mechanism; 272, second limit block; 273, lifting slide; 281, support seat; 282, second proximity switch; 290-1, first pallet correction component; 290-2, second pallet correction component; 291, clamping block; 292, connecting plate; 293, guide rod; 294, limit seat; 295, third limit block; 296, third drive mechanism; 297, hydraulic buffer; 298, mounting seat; 299, bushing; 310, electrical test bench; 320, safety monitoring equipment; 330, three-color lamp; 311, flat pallet; 312, electrical test frame; 313, bottom electrical test frame; 314, tooth position; 401, fork frame tooth; 402, bottom leg. DETAILED DESCRIPTION

[0042] 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 solution of the present invention, and cannot be used to limit the protection scope of the present invention. Example

[0043] 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.

[0044] See also Figure 4 , 5 6. The positioning and lifting slide 230 comprises: The workpiece placement stand 260 is used to place the workpiece pallet 120 supporting the 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.

[0045] In summary, the transfer device provided in the embodiment of the present invention is equipped with two correction slides in different directions, so as to realize correction in two transfer directions. 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 device can automatically adapt to different transfer equipment to realize the transfer of PACK workpieces. It can replace the RGV of the prior art 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.

[0046] As an embodiment of the present invention, in order to be able to more reliably connect with two different direction transfer devices at the same time, at least three positioning and lifting slides can be set, 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, and 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 slides B, and positioning and lifting slides C, wherein positioning and lifting slides B can cooperate with positioning and lifting slides C, and correct the workpiece pallet 120 in the first transfer direction by driving their respective first direction correction slides 270 to act on the workpiece pallet; positioning and lifting slides B can also cooperate with positioning and lifting slides A, and correct the workpiece pallet 120 in the second transfer direction by driving their respective second direction correction slides 280 to act on the workpiece pallet 120; positioning and lifting slides B can also cooperate with positioning and lifting slides A, and correct the workpiece pallet 120 in the second transfer direction by driving their respective second direction correction slides 280.

[0047] 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, and 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.

[0048] 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 1A protective net is used to protect the transfer area. 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 controls the safe and orderly entry and exit of the transfer equipment.

[0049] 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 of the four positioning and lifting slides 230. The four positioning and lifting slides 230 adjust the position of the workpiece pallet 120 and lift it, and the AGV transfer assembly 100 is disengaged. Figure 3 As shown, the first direction correction slide 270 can be used to adjust the forklift forking direction of the workpiece pallet 120, and the forklift 400 forks the workpiece pallet 120 from between two adjacent positioning and lifting slides 230; the workpiece pallet 120 is detached 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.

[0050] like Figure 4 , Figure 5 As shown, the bottom of each positioning lifting slide 230 is a fixed seat, and the fixed seat is provided with a lifting and positioning assembly 250, a workpiece placement stand 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 stand 260, and the workpiece placement stand 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 stand 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 stand 260; the driving directions of the first direction correction slide 270 and the second direction correction slide 280 are perpendicular to each other. 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.

[0051] like Figure 6As 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, the support plate 252 and the 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, and the four corners of the workpiece pallet 120 are guided and then accurately positioned by 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 realize precise control of the lifting height of the workpiece pallet 120.

[0052] like Figure 7 As shown, the lifting and positioning assembly 250 also includes: a probe 257, a probe reset spring 258 and a first proximity switch 259; the probe reset spring 258 is arranged at the top of the slide 254, the probe 257 passes through the probe reset spring 258, and the first proximity switch 259 is arranged below the probe 257. In a non-pressurized state, the probe 257 is pushed out of the support plate 252 by the probe reset spring 258; when the support plate 252 supports the workpiece pallet 120, the probe 257 squeezes the probe reset spring 258 and reaches down to trigger the first proximity switch 259, and when the first driving mechanisms 255 of the lifting and positioning assemblies 250 in the multiple positioning and 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 disengaged by the transfer device, the probe reset spring 258 pushes the probe 257 to reset, at which time the first proximity switch 259 closes the first driving mechanism 255, and the slide 254 falls.

[0053] like Figure 8 As shown, 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 and the diffuse reflector 262 are both arranged on the top of the lifting and 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.

[0054] like Fig. 9As shown, the first direction correction slide 270 includes: a second driving mechanism 271, a second limit stopper 272, a lifting slide 273 and a pallet correction assembly 290; the second driving mechanism 271 is used to drive the lifting slide 273 to move up and down, and the second limit stopper 272 is set at the starting end and the end end of the preset stroke of the lifting slide 273, and is used to limit the movement of the lifting slide 273 within the preset stroke; the first pallet correction assembly 290-1 is connected to the lifting slide 273. After the lifting slide 273 lifts the first pallet correction assembly 290-1 to the set height, the first pallet correction assembly 290-1 presses and positions the workpiece pallet.

[0055] like Fig.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.

[0056] like Fig.11 As shown, the first pallet correction assembly 290-1 and the second pallet correction assembly 290-2 adopt the same structure, including: a clamping block 291, a connecting plate 292, a guide rod 293, a mounting seat 298, a bushing 299, a third driving mechanism 296, a limiting seat 294, a third limiting block 295 and a hydraulic buffer 297; the third driving mechanism 296 is connected to the clamping block 291 through a guiding mechanism; the third driving mechanism 296 is used to drive the clamping block 291 to extend and retract; the limiting mechanism is used to limit the telescopic stroke of the clamping block 291 within 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 the connecting plate 292; the third driving mechanism 296 drives the clamping block 291 to extend and retract through the guide rod 293. The third limit block 295 and the hydraulic buffer 297 are respectively fixed on both sides of the third driving mechanism 296, and the third limit block 295 and the hydraulic buffer 297 move with the guide rod 293. The limit seat 294 is arranged on the mounting seat 298, and the limit seat 294 is in a relative position with the third limit block 295 and the hydraulic buffer 297. Optionally, there are two guide rods 293, which are distributed on both sides of the output end of the third driving mechanism 296. One end of the guide rod 293 is connected to the connecting plate 292, and the other end is connected to the mounting part. The third limit block 295 and the hydraulic buffer 297 are both arranged on the mounting part; when the guide rod 293 is extended to a set length, the third limit block 295 and the hydraulic buffer 297 hit the limit seat 294, and the hydraulic buffer 297 plays a buffering role.

[0057] 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

[0058] like Fig.12 , Fig.13 As shown, this embodiment provides an electrical measurement system, including: an AGV transfer component 100, a forklift 400, an electrical measurement mechanism 300, and the transfer equipment 200 described in Example 1. The AGV transfer component 100 carries the workpiece pallet 120 supporting the PACK workpiece 110 and enters the transfer equipment 200, and 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, and the transfer equipment 200 adjusts the orientation of the workpiece pallet 120 to adapt to the AGV transfer component 100, and the AGV transfer component 100 carries the workpiece pallet 120 supporting the PACK workpiece 110 that has completed the electrical measurement process and transfers it to the next station.

[0059] like Fig.14 , Fig.15 As shown, the AGV transfer assembly 100 includes: a workpiece pallet 120, a transfer vehicle 130, an AGV bracket 140 and an AGV 150; the AGV 150 is connected to the AGV bracket 140, the AGV bracket 140 is used to support the transfer vehicle 130, and the transfer vehicle 130 is used to support the workpiece pallet 120. "AGV" is the abbreviation of "Automated Guided Vehicle". AGV is a transport vehicle equipped with an automatic guidance device such as electromagnetic or optical, capable of traveling along a specified guidance path, and having safety protection and various transfer functions. The AGV used in this embodiment is a latent type, which is convenient for the transfer vehicle 130 to be mounted on the AGV bracket 140; the workpiece tray 120 supporting the PACK workpiece 110 is placed on the transfer vehicle 130 at any position; it is transferred to the AGV 150 through the transfer vehicle 130, and the AGV 150 performs the next transfer according to the set itinerary. Even if the AGV 150 fails, the transfer vehicle 130 can be removed from the AGV 150 for manual transfer, thereby improving the flexibility of transfer.

[0060] like Fig.16 As shown, the workpiece pallet 120 is provided with a pallet tooth position 123 at the bottom, which is convenient for forklift 400 to pick up; friction plates 121 are provided on both sides of the pallet tooth position 123, and the support plate 252 supports the friction plate 121. The friction plate 121 is provided to increase the friction force between the workpiece pallet 120 and the support plate 252. The workpiece pallet 120 is provided with a pallet positioning hole 122, which cooperates with the positioning pin 251 to achieve precise positioning.

[0061] like Fig.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 state of the PACK workpiece 110 and send out an alarm signal when the state of the PACK workpiece 110 is abnormal. The electrical testing mechanism 300 also includes a three-color light 330; the alarm signal is sent out through the three-color light 330. The electrical testing platform 310 is arranged in two opposite rows, with a forklift passage in the middle.

[0062] like Fig.18 As shown, the electrical testing platform 310 is a multi-layer structure, including an upper electrical testing frame 312 and a bottom electrical testing frame 313, and 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 tooth insertion position at the bottom. Since there is no tooth insertion position at the bottom, the height of the flat pallet 311 is lower than the workpiece pallet 120. In order to adapt to the flat pallet 311, a tooth insertion position 314 can be provided on the electrical testing frame, and the tooth insertion position 314 is provided on the bottom plate of each layer of the electrical testing frame, so that the height of each layer of the electrical testing frame is not increased. Therefore, the placement method of the flat pallet 311 allows more layers of electrical testing frames to be set up under limited height.

[0063] like Fig.19 As shown, the forklift 400 used in this embodiment is an automatic forklift, the bottom of which is a bottom leg 402 for support, and the upper part is a fork frame insert 401 with adjustable upper and lower positions.

[0064] The electric measurement system provided in the embodiment of the present invention can replace the RGV system to execute the electric measurement turnover process of the entire electric measurement system. It should be understood that the transfer route of the AGV transfer component 100 and the forklift 400 can be adaptively adjusted according to the setting position of the transfer equipment 200, the electric measurement mechanism 300 and other equipment in the field. Example

[0065] This embodiment provides the working process of the electrical measurement system described in Embodiment 2: The workflow of the pallet from AGV to the electrical test bench: The AGV 150 on the AGV transfer assembly 100 moves with the transfer vehicle 130 and the workpiece pallet 120 through the AGV bracket 140, and the three are precisely positioned by pins; the PACK workpiece 110 is fixed on the workpiece pallet 120 and moves along the AGV track route. When the AGV transfer assembly 100 enters the transfer equipment 200, the signals between the two are exchanged. The safety grating 210 on the guard net 220 is released; because the positioning accuracy of the AGV 150 meets the automatic positioning requirements. Therefore, the lifting positioning assembly 250 of the positioning lifting slide 230 lifts the workpiece pallet 120. The positioning block 253 contacts the friction plate 121 of the workpiece pallet 120 and guides the workpiece pallet 120. After slight correction, the friction plate 121 falls on the support plate 252. The probe 257 is lifted by the probe return spring 258 for a long time. When it contacts the friction plate 121, it will press down to send a signal to the first proximity switch 259, and then the workpiece pallet 120 falls on the support plate 252. The transfer equipment 200 has a total of four positioning and lifting slides 230. After lifting the workpiece pallet 120 together, the workpiece pallet 120 will be separated from the transfer vehicle 130. At this time, the AGV 150 can take the transfer vehicle 130 away from the transfer equipment 200.

[0066] The forklift 400 enters the transfer equipment 200 to fork, the forklift 400 and the transfer equipment 200 exchange signals, and the safety grating 210 on the protective net 220 releases the forklift 400. After the forklift 400 enters the transfer equipment 200, the fork frame inserting teeth 401 insert into the pallet inserting teeth position 123 of the workpiece pallet 120 to lift the workpiece pallet 120 away from the transfer equipment 200.

[0067] The forklift 400 enters the electrical testing mechanism 300 with the workpiece pallet 120 and the PACK workpiece 110. 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.

[0068] When the forklift 400 carrying the workpiece pallet 120 and the PACK workpiece 110 encounters an accident, or an abnormality occurs during the electrical measurement, the safety monitoring device 320 will detect the temperature corresponding to the PACK workpiece 110, and the three-color light 330 will alarm. The safety monitoring device 320 detects the electrical measurement station 310 across the forklift channel, and one safety monitoring device 320 can detect multiple PACK workpieces 110 at the same time.

[0069] The workflow of the pallet from the electrical test bench to the AGV: When the electrical test is completed, the forklift 400 enters the electrical test mechanism 300 to fork the workpiece pallet 120 and the PACK workpiece 110. After the forking action is completed, the forklift 400 returns to the transfer device 200.

[0070] Since the placement error of the forklift 400 is relatively large, after the diffuse reflector 262 detects that the workpiece pallet 120 is in a safe position, the fork frame insert 401 of the forklift 400 places the workpiece pallet 120 on the workpiece placement stand 260 of the positioning lifting slide 230, and then the forklift 400 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, and the pallet can move freely.

[0071] 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.

[0072] 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 station.

[0073] The electrical measurement system workflow provided by the embodiment of the present invention should be understood that the sequence of the workflow can be adaptively adjusted according to the operation requirements.

[0074] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. And in the drawings of the present invention, the filling pattern is only to distinguish the layers, without any other limitation.

[0075] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present 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 assembly (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 tray (120) that supports 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 the workpiece pallet (120) and position it at a desired transfer height after the transfer direction of the workpiece pallet (120) is adjusted.

2. The transfer equipment according to claim 1, characterized in that: At least three positioning and lifting slides (230) are provided, and at least two positioning and lifting slides (230) are combined and matched with each other to realize the clamping and positioning of the workpiece pallet (120) in the first transfer direction, and at least two positioning and lifting slides (230) are combined and matched with each other to realize the clamping and 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 protective net (220) is provided with an entrance and an exit, and a safety grating (210) is provided at the entrance and an 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 at least providing support to the edge of the workpiece tray (120); The first driving mechanism (255) is capable of driving the slide seat (254) to move upwards, and lifting the workpiece pallet (120) upwards through the support plate (252) to separate from the workpiece placement stand (260) until it reaches the desired transfer height.

6. The transfer equipment according to claim 5, characterized in that: The support plate (252) is provided with a positioning pin (251) and a positioning block (253); 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 stopper (256) for limiting the movement of the slide seat (254) within a preset stroke.

7. The transfer equipment according to any one of claims 1 to 6, characterized in that: The lifting and positioning assembly (250) further includes: a probe (257), a probe reset spring (258) and a first proximity switch (259); the probe (257) passes through the probe reset spring (258) and extends out of the support surface of the support plate (252) under the support of the probe reset 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 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.

8. The transfer equipment according to claim 1, characterized in that: The workpiece placement stand (260) comprises: 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) is in contact with the workpiece pallet (120) to form 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) has adjusted the transfer direction of the workpiece pallet (120) to the correct position.

9. The transfer equipment according to claim 1, characterized in that: The first-direction correction slide (270) comprises: a second driving mechanism (271), a lifting slide (273) and a first tray correction component (290-1); The first tray 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.

10. The transfer equipment according to claim 9, characterized in that: The second direction correction slide (280) comprises: a support seat (281), a second proximity switch (282) and a second pallet correction component (290-2); The second proximity switch (282) and the second tray correction assembly (290-2) are both arranged 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 the second transfer direction.

11. The transfer equipment according to claim 10, characterized in that: At least one of the first tray correction component (290-1) and the second tray correction component (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 drivingly connected to the pressing block (291); the guiding 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).

12. The transfer equipment according to claim 11, 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).

13. The transfer equipment according to claim 12, characterized in that: It also includes a limiting mechanism for limiting the driving stroke of the third driving mechanism (296) within a set range, the limiting mechanism comprising: a limiting seat (294) and a third limiting member; The limiting seat (294) is arranged 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).

14. A battery electrical measurement system, characterized in that: It includes an electric measuring mechanism and a turnover mechanism for realizing battery turnover between the electric measuring area and the PACK area; The turnover mechanism comprises: an AGV transfer component (100), a forklift (400), and a transfer device (200) as claimed in any one of claims 1 to 13; The AGV transfer assembly (100) is used to transfer a workpiece pallet (120) carrying batteries to be tested in 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 that has completed 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).

15. The electrical measurement system according to claim 14, 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).

16. The electrical measurement system according to claim 14 or 15, 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 to perform electrical testing on a battery; the safety monitoring device (320) is used to monitor the battery status during the electrical testing process and to send out an alarm signal when the battery status is abnormal.

Images