Battery transfer trolley

Abstract

The invention discloses a battery transfer trolley which comprises a frame, a transfer manipulator, a clamp push-pull device, a tray conveying and positioning device, a lifting bracket, a lifting driving mechanism, a lifting platform and a tray lifting driving device, a tray inlet and a tray outlet are formed in one end of the frame; the other end of the frame is provided with a clamp butt joint port; a clamp area and a tray area are arranged in the frame; the lifting bracket is provided with an upper-layer bracket and a lower-layer bracket; the transfer manipulator is arranged on the upper-layer bracket; the lower-layer support is arranged in the clamp area, and the clamp push-pull device is arranged on the lower-layer support. The clamp push-pull device is located between the two clamp butt-joint openings. The tray conveying and positioning device is arranged on the lifting platform and located between the tray inlet and the tray outlet. The tray lifting driving device drives the lifting platform to vertically move; and the transfer manipulator is arranged between the clamp push-pull device and the tray conveying and positioning device. The battery transfer trolley is stable and accurate in movement and high in production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to a battery production equipment, in particular to a battery transfer trolley. BACKGROUND

[0002] The existing battery baking production equipment includes a battery transfer trolley, a running track, a baking furnace and an upper and lower material conveying belt. The baking furnace is arranged on one side of the battery transfer trolley for baking batteries. The upper and lower material conveying belt is arranged on the other side of the battery transfer trolley in a two-layer structure for conveying trays. The upper layer of the upper and lower material conveying belt is used for conveying un-baked batteries to the battery transfer trolley, and the lower layer is used for outputting baked batteries from the battery transfer trolley. However, the existing arrangement is not reasonable. The reason is that the lower layer structure of the upper and lower material conveying belt is at a lower level, and in order to be able to dock with the lower layer structure of the upper and lower material conveying belt when discharging, the bottom of the tray conveying device of the battery transfer trolley also needs to be kept at a lower level, thereby causing the Z-axis stroke of the mechanical hand of the battery transfer trolley to be too long when grabbing the batteries of the tray conveying device downward, so that the length of the Z-axis screw needs to be set larger, which makes the overall height of the battery transfer trolley too high, so that some workshops cannot meet the space requirements of the battery transfer trolley. In addition, when the mechanical hand gripper moves in the Z-axis direction for a long distance, it will have a large deviation due to inertia, thereby affecting the accuracy of the gripper position, causing the picking to sometimes fail, and reducing the production efficiency. SUMMARY

[0003] The purpose of the present application is to provide a battery transfer trolley which is stable, accurate and has high production efficiency.

[0004] In order to achieve the above object, the battery transfer trolley provided by the present application comprises a frame, a transfer manipulator, a clamp push-pull device, a tray conveying and positioning device, a lifting support, a lifting driving mechanism, a lifting platform and a tray lifting driving device arranged on the frame; one end of the frame is provided with a tray inlet on the front side and a tray outlet on the rear side; the other end of the frame is provided with a clamp docking port on the front side and the rear side; the frame is provided with a clamp area and a tray area; the lifting support is vertically movably arranged on the frame, and the lifting driving mechanism drives the lifting support to move vertically; the lifting support is provided with an upper support and a lower support fixedly connected below the upper support; the upper support spans the clamp area and the tray area, and the transfer manipulator is transversely movably arranged on the upper support; the lower support is arranged in the clamp area, and the clamp push-pull device is arranged on the lower support; the clamp push-pull device is located between the two clamp docking ports, so as to convey the clamp to the baking furnace through the clamp docking port on one side or receive the clamp from the baking furnace; the lifting platform is vertically movably arranged on the frame and located in the tray area, the tray conveying and positioning device is arranged on the lifting platform, and the tray conveying and positioning device is located between the tray inlet and the tray outlet, so as to input or output the tray; the tray lifting driving device drives the lifting platform to move vertically; the transfer manipulator is arranged between the clamp push-pull device and the tray conveying and positioning device, so as to transfer the battery between the clamp of the clamp push-pull device and the tray of the tray conveying and positioning device.

[0005] Compared with the prior art, the present application vertically arranges the upper support and the lower support on the lifting support, and fixes the upper support and the lower support, and arranges the transfer manipulator on the upper support and the clamp push-pull device on the lower support, so that the distance between the transfer manipulator and the clamp push-pull device is greatly reduced and fixed, the stroke of the Z-axis of the transfer manipulator can be designed to be shorter, the length of the screw rod is shortened, the stability of the clamping jaw of the transfer manipulator is ensured, the running position is accurate, the picking is very accurate, the problem of picking failure is greatly reduced, and the production efficiency is effectively improved. In addition, the lifting platform is driven to rise or fall by the tray lifting driving device, the battery can be picked and placed by the transfer manipulator in cooperation with the lifting platform in the rising process, and the tray conveying and positioning device and the clamp push-pull device can be kept flush in the falling process, so that the clamp push-pull device can pick and place the battery on the clamp at the bottom of the baking furnace, the transfer manipulator can transfer the battery between the clamp push-pull device and the tray conveying and positioning device, the transfer manipulator is prevented from having large vertical movement, the clamping jaw of the transfer manipulator runs more stably, and the position is more accurate.

[0006] Specifically, the lifting support includes a first connecting rod and two second connecting rods, one end of each of the two second connecting rods being connected to both ends of the first connecting rod; a clearance area is formed between the other ends of the two second connecting rods, and the clearance area is located within the pallet area. Since both the lifting support and the lifting platform are vertically movable on the vehicle frame, by providing the clearance area, the lifting platform can pass through the clearance area, thus ensuring that the lifting support and the lifting platform do not interfere with each other when rising or falling.

[0007] Specifically, the lifting drive mechanism includes a servo motor, a first reversing transmission mechanism, multiple second reversing transmission mechanisms, multiple drive shafts, and at least three vertically arranged lead screws and nuts threadedly connected to the lead screws. The output end of the servo motor is connected to the input end of the first reversing transmission mechanism. The first lead screw is vertically arranged on the vehicle frame and connected to one of the output ends of the first reversing transmission mechanism. Two second reversing transmission mechanisms and two drive shafts form a transmission assembly. The transmission assembly is symmetrically connected to the other two output ends of the first reversing transmission mechanism. The other two lead screws are vertically arranged on the vehicle frame and connected to the output ends of their respective transmission assemblies. The three lead screws are not on the same vertical plane. The lifting bracket is connected to the three nuts. By setting at least three lead screws and nuts, and making them not on the same vertical plane, the lifting bracket can be raised and lowered more stably and accurately. In addition, by setting the first reversing transmission mechanism, the second reversing transmission mechanism and the transmission shaft, it can be ensured that all lead screws can operate synchronously, thus ensuring that each position of the lifting bracket can rise or fall synchronously, ensuring the smoothness of lifting and thus improving the accuracy of picking up and placing batteries.

[0008] Specifically, the battery transfer trolley also includes a translation drive mechanism, which is disposed between the lifting bracket and the transfer manipulator to drive the transfer manipulator to move laterally on the lifting bracket.

[0009] Specifically, the translation drive mechanism includes a motor, a gear, and a rack. The motor is mounted on the transfer manipulator and its output end is connected to the gear. The rack is arranged laterally on the lifting bracket, and the gear meshes with the rack.

[0010] Specifically, the transfer robot comprises a workbench, a servo motor, a second screw rod, a second nut, a mounting table and a plurality of clamping jaws, the workbench is movably arranged on the lifting support in a transverse direction, the servo motor is arranged on the workbench and has an output end connected with the second nut, the second nut is rotatably arranged on the workbench, the second screw rod is arranged in a vertical direction, the second screw rod is threadedly connected with the second nut, a lower end of the second screw rod is connected with the mounting table, and the clamping jaws are arranged on the mounting table.

[0011] Specifically, a stroke of the second screw rod is less than a height between the upper support and the lower support, and the height of the upper support and the lower support is less than a height of the clamping area. In this way, the length of the second screw rod is less, the clamping jaws of the transfer robot can be stably moved up and down, and the accuracy of the clamping jaws in picking up parts is improved.

[0012] Specifically, the transfer robot further comprises a driving pulley, a driven pulley and a belt, the driving pulley is arranged on an output shaft of the servo motor, the driven pulley is fixedly sleeved on the second nut, and the belt is wound between the driving pulley and the driven pulley.

[0013] Specifically, the transfer robot further comprises guide rods and guide sleeves, the guide rods are fixedly arranged on the mounting table respectively, the guide sleeves are arranged on the workbench, and the guide rods are slidably sleeved in the guide sleeves. The guide rods and the guide sleeves guide the workbench, so that the workbench and the clamping jaws are more stably moved.

[0014] Specifically, the tray conveying and positioning device comprises a conveying chain, a limiting mechanism and a jacking positioning mechanism, the conveying chain is arranged between the tray inlet and the tray outlet to convey the tray, the limiting mechanism and the jacking positioning mechanism are arranged below the conveying chain, the limiting mechanism limits the movement of the tray, and the jacking positioning mechanism jacks up the tray to above the conveying chain. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the battery baking production equipment.

[0016] Figure 2 is a top view of the battery baking production equipment.

[0017] Figure 3 is a perspective view of the battery transfer trolley of the battery baking production equipment.

[0018] Figure 4 is a side view of the battery transfer trolley of the battery baking production equipment.

[0019] Figure 5 is a perspective view of a battery transfer trolley of the present application.

[0020] Figure 6 is a perspective view of a battery transfer trolley of the present application.

[0021] Figure 7 is a perspective view of a battery transfer trolley of the present application.

[0022] Figure 8 is a perspective view of a battery transfer trolley of the present application.

[0023] Figure 9 is a perspective view of a battery transfer trolley of the present application. DETAILED DESCRIPTION

[0024] To make the technical content, structural features, achieved purposes and effects of the present application clear, the following will be described in detail in combination with the embodiments and the accompanying drawings.

[0025] Please refer to Figures 1 to 3 , the battery baking production equipment 100 of the present application includes a battery transfer trolley 1, a running track 2, baking furnaces 3, an upper feeding conveyor belt 4, a lower feeding conveyor belt 5 and a control system, the control system controls the operation of the battery transfer trolley 1, the running track 2, the baking furnaces 3, the upper feeding conveyor belt 4 and the lower feeding conveyor belt 5 respectively, so as to make the devices work cooperatively. The battery transfer trolley 1 is movably arranged on the running track 2, and a walking driving mechanism is arranged on the battery transfer trolley 1, which can drive the battery transfer trolley to move back and forth along the running track 2. The baking furnaces 3 are arranged on the opposite sides of the running track 2 along the extension direction of the running track 2. One end of the battery transfer trolley 1 is provided with a tray entrance 1a on the front side and a tray exit 1b on the rear side; the conveying direction of the upper feeding conveyor belt 4 is parallel to the running track 2, and the upper feeding conveyor belt 4 is arranged above the baking furnaces 3 on one side of the running track 2 and is connected with the tray entrance 1a. The conveying direction of the lower feeding conveyor belt 5 is parallel to the running track 2, and the lower feeding conveyor belt 5 is arranged above the baking furnaces 3 on the other side of the running track 2 and is connected with the tray exit 1b. The other end of the battery transfer trolley 1 is provided with a clamp docking port 1c on the front side and the rear side; the clamp docking port 1c is opposite to the clamp exit of the baking furnace 3 on the side. The battery transfer trolley 1 can transfer the batteries on the tray on the upper feeding conveyor belt 4 into the clamp of the baking furnace 3 on either side, or transfer the batteries in the clamp of the baking furnace 3 on either side into the tray on the lower feeding conveyor belt 5.

[0026] Please refer to Figure 3 and Figure 4The battery transfer trolley 1 comprises a frame 11, a transfer manipulator 12, a gripper pushing and pulling device 13 and a tray conveying and positioning device 14 arranged on the frame 11. The frame 11 has a gripper area 11a and a tray area 11b, the tray conveying and positioning device 14 is arranged on the tray area 11b and located between the tray inlet 1a and the tray outlet 1b to input or output the tray. The gripper pushing and pulling device 13 is arranged on the gripper area 11a and located between the gripper docking interfaces 1c to convey the gripper to the baking furnace 3 on either side through the gripper docking interface 1c on the side or receive the gripper from the baking furnace 3. The transfer manipulator 12 is located above the gripper area 11a and the tray area 11b, and is arranged between the gripper pushing and pulling device 13 and the tray conveying and positioning device 14 to transfer the battery between the gripper of the gripper pushing and pulling device 13 and the tray of the tray conveying and positioning device 14.

[0027] Please refer to Figure 3 and Figure 4 The battery transfer trolley 1 further comprises a lifting support 15 and a lifting driving mechanism 16, the lifting driving mechanism 16 is arranged on the frame 11, the lifting support 15 is arranged vertically movable on the frame 11, and the lifting driving mechanism 16 drives the lifting support 15 to move vertically. The lifting support 15 is provided with an upper support 151 and a lower support 152 located below the upper support 151 and fixedly connected with the upper support 151. The upper support 151 spans the gripper area 11a and the tray area 11b, and the transfer manipulator 12 is arranged laterally movable on the upper support 151. The lower support 152 is arranged on the gripper area 11a, and the gripper pushing and pulling device 13 is arranged on the lower support 152. By arranging the upper support 151 and the lower support 152 on the lifting support 15 in an upper and lower manner, and fixing the upper support 151 and the lower support 152, and arranging the transfer manipulator 12 on the upper support 151 and the gripper pushing and pulling device 13 on the lower support, the distance between the transfer manipulator 12 and the gripper pushing and pulling device 13 is reduced and kept fixed, therefore, the Z-axis stroke of the transfer manipulator 12 can be designed shorter, so that the length of the lead screw is shortened, and the stability and position accuracy of the gripper moving up and down are further improved.

[0028] Please refer to Figure 8The lifting driving mechanism 16 comprises a servo motor 161, a first reversing transmission mechanism 162, a plurality of second reversing transmission mechanisms 163, a plurality of transmission shafts 164, at least three vertical lead screws 165 and nuts 166 threadedly connected with the lead screws 165. The output end of the servo motor 161 is connected with the input end of the first reversing transmission mechanism 162. The first reversing transmission mechanism 162 has three output ends. The first lead screw 165 is vertically arranged on the frame 11 and connected with one of the output ends of the first reversing transmission mechanism 162. Two second reversing transmission mechanisms 163 and two transmission shafts 164 form a transmission assembly, which is symmetrically connected with the other two output ends of the first reversing transmission mechanism 162. The other two lead screws 165 are vertically arranged on the frame 11 and connected with the output ends of the corresponding transmission assemblies. The three lead screws 165 are not in the same vertical plane. The lifting bracket 15 is connected with the three nuts 166. Specifically, the reversing transmission mechanisms are connected by at least two umbrella gears. In this embodiment, the first reversing transmission mechanism 162 has one input end and three output ends, which need four umbrella gears to mesh with each other. The second reversing transmission mechanism 163 has one input end and one output end, which need two umbrella gears to mesh with each other. By arranging at least three lead screws 165 and nuts 166 and making them not in the same vertical plane, the lifting bracket 15 can be lifted more stably and accurately. In addition, by arranging the first reversing transmission mechanism 162, the second reversing transmission mechanism 163 and the transmission shaft 164, all the lead screws 165 can be synchronously operated, so that the positions of the lifting bracket 15 can be synchronously lifted or lowered, the stability of lifting is ensured, and the accuracy of taking and placing the battery is improved.

[0029] Please also refer to Figure 3 and Figure 4The battery transfer trolley 1 further includes a lifting platform 17 and a pallet lifting drive device 18. The lifting platform 17 is vertically movable on the frame 11 and located within the pallet area 11b. The pallet conveying and positioning device 14 is disposed on the lifting platform 17. The pallet lifting drive device 18 drives the lifting platform 17 to move vertically. The pallet lifting drive device 18 can also use a motor-driven lead screw mechanism to drive the lifting platform 17 to lift. Its specific structure is well known to those skilled in the art and is not the focus of this solution, so it will not be described in detail here. By using the pallet lifting drive device 18 to drive the lifting platform 17 to rise or fall, the lifting platform 17 can rise to cooperate with the transfer robot 12 to pick up and put down batteries, while the lowering can keep the pallet conveying positioning device 14 and the clamp push-pull device 13 level, so that the clamp push-pull device 13 can pick up and put down batteries from the clamps at the bottom of the baking oven 3, and facilitate the transfer robot 12 to transfer batteries between the clamp push-pull device 13 and the pallet conveying positioning device 14, avoiding large vertical lifting movements of the transfer robot 12, thereby ensuring that the gripper 125 of the transfer robot 12 runs more stably and is positioned more accurately.

[0030] like Figures 5 to 6 As shown, the lifting support 15 includes a first connecting rod 15a and two second connecting rods 15b. One end of each of the two second connecting rods 15b is connected to both ends of the first connecting rod 15a, thereby forming a U-shaped structure. A clearance area 15c is formed between the other ends of the two second connecting rods 15b, and the clearance area 15c is located within the tray area 11b. Since both the lifting support 15 and the lifting platform 17 are vertically movable on the frame 11, the clearance area 15c allows the lifting platform 17 to pass through it, thus ensuring that the lifting support 15 and the lifting platform 17 do not interfere with each other when rising or falling.

[0031] like Figures 5 to 6 As shown, the battery transfer trolley 1 also includes a translation drive mechanism 19, which is disposed between the lifting bracket 15 and the transfer manipulator 12 to drive the transfer manipulator 12 to move laterally on the lifting bracket 15. Specifically, the translation drive mechanism 19 includes a motor 191, a gear 192, and a rack 193. The motor 191 is disposed on the transfer manipulator 12 and its output end is connected to the gear 192. The rack 193 is arranged laterally on the lifting bracket 15, and the gear 192 meshes with the rack 193.

[0032] Please see Figures 5 to 7As shown, the transfer robot 12 comprises a workbench 121, a servo motor 122, a second screw rod 123, a mounting table 124, a plurality of clamping jaws 125 and a second nut 126. The workbench 121 is movably arranged on the lifting support 15. The servo motor 122 is arranged on the workbench 121 and has an output end connected with the second nut 126. The second nut 126 is rotatably arranged on the workbench 121. The second screw rod 123 is vertically arranged and threadedly connected with the second nut 126. The lower end of the second screw rod 123 is connected with the mounting table 124. The clamping jaws 125 are arranged on the mounting table 124. Specifically, the stroke of the second screw rod 123 is less than the height between the upper support 151 and the lower support 152. The height of the upper support 151 and the lower support 152 is less than the height of the clamp area 11a. In this way, the length of the second screw rod 123 is less, the clamping jaws 125 of the transfer robot 12 can move more stably, and the accuracy of the clamping jaws 125 in picking up parts is improved.

[0033] The transfer robot 12 further comprises a driving pulley (not shown), a driven pulley and a belt. The driving pulley is arranged on the output shaft of the servo motor 122. The driven pulley is fixedly sleeved on the outside of the second nut 126. The belt is wound between the driving pulley and the driven pulley. The servo motor 122 drives the second nut 126 to rotate, and then drives the second screw rod 123 to ascend or descend.

[0034] Further Figure 7 As shown, the transfer robot 12 further comprises guide rods 126 and a guide sleeve 127. The guide rods 126 are fixedly arranged on the mounting table 124. The guide sleeve 127 is arranged on the workbench 121. The guide rods 126 are slidably sleeved in the guide sleeve 127. The workbench 121 is guided by the guide rods 126 and the guide sleeve 127, and the workbench 121 and the clamping jaws 125 move more stably.

[0035] As Figure 9As shown, the tray conveying positioning device 14 comprises a conveying chain 141, a limiting mechanism 142 and a jacking positioning mechanism 143. The conveying chain 141 is arranged between the tray inlet 1a and the tray outlet 1b and on both sides of the lifting platform 17 to convey the tray. The conveying chain 141 is driven by a motor-driven sprocket and chain, so that the rollers coaxial on each sprocket roll, and the tray is carried on the rollers and moves forward under the driving of the rollers. The limiting mechanism 142 and the jacking positioning mechanism 143 are arranged below the conveying chain 141. The limiting mechanism 142 is arranged on the lifting platform 17 and limits the movement of the tray. Specifically, the limiting mechanism 142 has a telescopic end. When the telescopic end is driven by a cylinder to extend upward beyond the height of the conveying chain 141, the tray can be blocked from continuing to move, achieving limiting. The jacking positioning mechanism 143 jacks the tray above the conveying chain 141, so that the tray can be positioned to facilitate the battery picking and placing of the transfer robot 12. Specifically, the jacking positioning mechanism 143 has a jacking end. When the jacking end is driven by a cylinder to jacks the tray upward, the tray can be lifted to a height higher than the conveying chain 141, so as to facilitate the battery picking and placing of the transfer robot 12.

[0036] In summary, the working principle of the battery baking production equipment 100 is described in detail as follows: Firstly, the feeding conveyor belt 4 transports the tray carrying the batteries to be baked into the tray inlet 1a, and then the conveying chain 141 of the tray conveying positioning device 14 starts to drive the tray into the tray area 11b. At this time, the limiting mechanism 142 limits the tray. Then, the jacking positioning mechanism 143 jacks up the tray to a certain height and away from the conveying chain 141. At the same time, the lifting driving mechanism 16 starts to drive the first screw rod 165 to rotate through the first reversing transmission mechanism 162, and then drive the two second screw rods 165 to rotate through the transmission shaft 164 and the second reversing transmission mechanism 163, so that the three screw rods 165 rotate at the same time to drive the lifting bracket 15 to move vertically to the position of the clamp outlet of the baking oven 3. At this time, the tray lifting driving device 18 drives the lifting platform 17 to move vertically to the position at the same horizontal height as the lifting bracket 15. Then, the clamp pulling device 13 pulls the clamp loaded with the baked batteries out of the baking oven 3 and makes the clamp located in the clamp area 11a. At this time, the translation driving mechanism 19 drives the transfer robot 12 to move above the clamp. Then, the transfer robot 12 starts to drive the second screw nut 126 to rotate through the servo motor 122, and then the second screw rod 123 drives the mounting table 124 to descend, and the clamping jaw 125 on the mounting table 124 approaches the batteries on the clamp. Then, the clamping jaw 125 correspondingly grabs the batteries. Then, under the reverse driving of the servo motor 122 and the screw nut 126, the second screw rod 123 drives the mounting table 124 and the clamping jaw 125 to ascend a small height, and then the translation driving mechanism 19 drives the transfer robot 12 to move above the tray, and under the driving of the servo motor 122 and the second screw nut 126, the second screw rod 123 drives the mounting table 124 and the clamping jaw 125 to descend to approach the tray, so that the clamping jaw 125 can place the batteries in the tray. When the tray is full of batteries, the jacking mechanism lowers the tray to be carried on the conveying chain 141, the telescopic end of the limiting mechanism 142 retracts to release the limitation of the tray, and then the conveying chain 141 outputs the tray to the tray outlet 1b, and the discharging conveyor belt 5 receives the tray and outputs the tray. By the same principle, the batteries can be transferred from the tray to the clamp, and then the clamp is sent to the baking oven 3 through the clamp pulling device 13 for baking.

[0037] Compared with the prior art, the baking oven 3 is arranged on both sides of the running track 2 along the extension direction of the running track 2, the feeding conveying belt 4 is arranged above the baking oven 3 on one side of the running track 2, the discharging conveying belt 5 is arranged above the baking oven 3 on the other side of the running track 2, the battery transfer trolley 1 is provided with the transfer manipulator 12, the clamp push-pull device 13 and the tray conveying positioning device 14, and the tray is input or output by the tray conveying positioning device 14 being connected with the feeding conveying belt 4 and the discharging conveying belt 5. Therefore, the tray conveying positioning device 14 is arranged at a higher position in the battery transfer trolley 1 and is closer to the transfer manipulator 12, so that the Z-axis stroke of the transfer manipulator 12 is greatly shortened when the battery is transferred to the tray by the transfer manipulator 12, the length of the lead screw 165 used is greatly reduced, the stability of the clamping jaw 125 of the transfer manipulator 12 is ensured, the running position is accurate, the picking is very accurate, the picking failure is greatly reduced, and the production efficiency is effectively improved.

[0038] The above only discloses the preferred embodiments of the present application, and of course cannot limit the scope of the present application, and equivalent changes made within the scope of the present application are still within the scope of the present application.

Claims

1. A battery transfer cart, characterized in that: The system includes a frame and a transfer robot, a clamping and pushing device, a pallet conveying and positioning device, a lifting bracket, a lifting drive mechanism, a lifting platform, and a pallet lifting drive device mounted on the frame. One end of the frame has a pallet inlet at the front and a pallet outlet at the rear. The other end of the frame has clamping interfaces at both the front and rear. The frame contains a clamping area and a pallet area. The lifting bracket is vertically movable on the frame, and the lifting drive mechanism drives the lifting bracket to move vertically. The lifting bracket has an upper bracket and a lower bracket located below and fixedly connected to the upper bracket. The upper bracket spans the clamping area and the pallet area. The transfer robot is laterally movable on the upper bracket. The lower bracket is located on... The clamping area includes a clamping push-pull device mounted on the lower support. The clamping push-pull device is located between two clamping interfaces to transport the clamp to or receive clamps from the oven via either clamping interface. A lifting platform is vertically movable on the frame and located within the pallet area. A pallet conveying and positioning device is mounted on the lifting platform and located between the pallet inlet and the pallet outlet to input or output pallets. A pallet lifting drive device drives the lifting platform to move vertically. A transfer robot is positioned between the clamping push-pull device and the pallet conveying and positioning device to transfer the battery between the clamps of the clamping push-pull device and the pallet of the pallet conveying and positioning device.

2. The battery transfer cart according to claim 1, characterized in that: The lifting support includes a first connecting rod and two second connecting rods, one end of each of the two second connecting rods being connected to both ends of the first connecting rod; a clearance area is formed between the other ends of the two second connecting rods, and the clearance area is located within the tray area.

3. The battery transfer cart according to claim 1, characterized in that: The lifting drive mechanism includes a servo motor, a first reversing transmission mechanism, multiple second reversing transmission mechanisms, multiple drive shafts, and at least three vertically arranged lead screws and nuts threadedly connected to the lead screws. The output end of the servo motor is connected to the input end of the first reversing transmission mechanism. The first lead screw is vertically arranged on the vehicle frame and connected to one of the output ends of the first reversing transmission mechanism. Two second reversing transmission mechanisms and two drive shafts form a transmission assembly. The transmission assembly is symmetrically connected to the other two output ends of the first reversing transmission mechanism. The other two lead screws are vertically arranged on the vehicle frame and connected to the output ends of their respective transmission assemblies. The three lead screws are not on the same vertical plane. The lifting bracket is connected to the three nuts.

4. The battery transfer cart according to claim 1, characterized in that: The battery transfer trolley also includes a translation drive mechanism, which is disposed between the lifting bracket and the transfer manipulator to drive the transfer manipulator to move laterally on the lifting bracket.

5. The battery transfer cart according to claim 4, characterized in that: The translation drive mechanism includes a motor, a gear, and a rack. The motor is mounted on the transfer manipulator and its output end is connected to the gear. The rack is arranged laterally on the lifting bracket, and the gear meshes with the rack.

6. The battery transfer cart according to claim 1, characterized in that: The transfer robot includes a worktable, a servo motor, a second lead screw, a second nut, a mounting platform, and multiple grippers. The worktable is laterally movably mounted on the lifting bracket. The servo motor is mounted on the worktable and its output end is connected to the second nut. The second nut is rotatably mounted on the worktable. The second lead screw is vertically mounted and threadedly connected to the second nut. The lower end of the second lead screw is connected to the mounting platform. The grippers are mounted on the mounting platform.

7. The battery transfer cart according to claim 1, characterized in that: The stroke of the second lead screw is less than the layer height between the upper support and the lower support, and the layer height between the upper support and the lower support is less than the height of the clamping area.

8. The battery transfer cart according to claim 6, characterized in that: The transfer manipulator also includes an active pulley, a driven pulley, and a belt. The active pulley is located on the output shaft of the servo motor, the driven pulley is sleeved and fixed outside the second nut, and the belt is wrapped around the active pulley and the driven pulley.

9. The battery transfer cart according to claim 6, characterized in that: The transfer robot also includes guide rods and guide sleeves. The guide rods are fixedly mounted on the mounting platform, and the guide sleeves are mounted on the worktable. The guide rods are slidably fitted inside the guide sleeves.

10. The battery transfer cart according to claim 1, characterized in that: The pallet conveying and positioning device includes a conveyor chain, a limiting mechanism, and a lifting and positioning mechanism. The conveyor chain is located between the pallet inlet and the pallet outlet to convey the pallet. The limiting mechanism and the lifting and positioning mechanism are located below the conveyor chain. The limiting mechanism restricts the movement of the pallet, and the lifting and positioning mechanism lifts the pallet above the conveyor chain.

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