Battery hoisting equipment for new energy whole vehicle manufacturing

Abstract

The invention provides battery hoisting equipment for new energy whole vehicle manufacturing in the technical field of battery pack installation. The jacking assembly is installed on the base in a telescopic mode so as to push wheels to lift a vehicle to a preset height; the assembling component is mounted in the middle of the jacking component and is used for positioning the battery to an accommodating space at the bottom of the vehicle according to the parking state of the vehicle; the assembling assembly comprises a vehicle body positioning assembly which is installed on the base and locked on the front surface, the rear surface, the left surface and the right surface of a vehicle body so as to determine the parking direction of the vehicle; the locking and pushing assembly is mounted on the vehicle body positioning assembly; and the vehicle body positioning assembly locks the parking direction of the vehicle. The device has the advantages that the battery pack shell can be quickly and conveniently loaded into the loading space on the vehicle chassis, and the battery pack shell or the loading space cannot be damaged when the battery pack shell is inserted into the loading space.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack installation, and in particular to a battery hoisting device for new energy vehicle manufacturing. Background Art

[0002] A storage space for the battery pack shell will be reserved on the chassis of new energy vehicles. When installing the battery, the battery pack shell is lifted into the storage space through a lifting device, and then the bolts are passed through the through holes on the battery pack shell and fixed in the positioning wire holes on the chassis to achieve the installation of the battery on the new energy vehicle.

[0003] Chinese patent CN112678711A discloses a lifting device for replacing batteries of new energy vehicles and a method of using the device, comprising a base frame, the bottom end of the base frame is symmetrically fixedly connected with four universal wheels, the top end of the base frame is symmetrically fixedly connected with four columns, the top ends of the four columns are fixedly connected with a workbench, a lifting platform is arranged on the top end of the workbench, the top end of the workbench is symmetrically fixedly connected with two first supports, one side of the two first supports is fixedly connected with a first pin rod, the outer side of the first pin rod is symmetrically sleeved with two first support frames, and the bottom end of the lifting platform is symmetrically fixedly connected with two second supports.

[0004] However, in this technical solution, although the battery pack shell can be placed on a mobile platform and lifted onto the vehicle chassis for installation, it is necessary to check whether the perforations on the battery pack shell correspond to the positions of the positioning thread holes on the chassis during lifting to adjust the placement of the battery pack shell, which is very cumbersome. Moreover, when the battery pack shell is lifted to the corresponding loading space on the chassis, it is impossible to determine whether the battery pack shell is properly loaded in the loading space. Moreover, when the battery pack shell is loaded, the positioning of the battery pack shell is not accurate. Direct insertion may easily cause the battery pack shell to be squeezed and deformed by the loading space. Moreover, when inserting, in order for the battery pack shell to be fully inserted into the loading space, the vehicle will be lifted off the placement surface, causing the battery pack shell to be squeezed and damaged. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and provide a battery lifting equipment for new energy vehicle manufacturing. The battery pack shell is pre-positioned on the locking and pushing assembly by a mobile manipulator. The body positioning assembly first locks the placement direction of the vehicle so that the locking and pushing assembly is arranged to correspond to the placement direction of the vehicle. The locking and pushing assembly locks the positioning wire holes on the vehicle chassis, and pushes the battery pack shell along the guide direction of the locking and pushing assembly to insert into the loading space. Then the locking and pushing assembly withdraws from the positioning wire holes, and the bolts are passed through the through holes on the battery pack shell and locked in the positioning wire holes to ensure that the battery pack shell and the loading space on the chassis can be accurately inserted during assembly.

[0006] To achieve the above object, the present invention provides the following technical solutions: A battery lifting equipment for new energy vehicle manufacturing, characterized in that it includes: a base; a lifting component, which is telescopically installed on the base to push the wheels to lift the vehicle to a predetermined height; and an assembly component, which is installed in the middle of the lifting component to position the battery to the bottom of the vehicle according to the parking state of the vehicle; the assembly component includes: a body positioning component, which is installed on the base and locked to the front, rear, left and right surfaces of the body to determine the parking direction of the vehicle; and a locking and pushing component, which is installed on the body positioning component; after the body positioning component locks the parking direction of the vehicle, the locking and pushing component passes through the perforation on the battery and is positioned in the positioning wire hole on the vehicle chassis corresponding to the perforation, and pushes the battery along the positioning direction to the mounting space.

[0007] Furthermore, the vehicle body positioning assembly includes: a base, on which an adjustment space is opened; an adjustment seat, which is spring- and slidably installed in the adjustment space; and a locking assembly, which is axially installed on the adjustment seat.

[0008] Furthermore, the locking assembly includes: a locking terminal, which corresponds to the side surface of the vehicle body; a locking power member, which is installed on the adjustment seat, and the power output end of the locking power member is connected to the locking terminal.

[0009] Furthermore, the locking assembly further comprises: a lifting power member, the lifting power member being installed on a power output end of one group of the locking power members, and the power output end of the lifting power member being connected to a corresponding group of the locking terminals.

[0010] Furthermore, a spring is circumferentially connected to the adjustment seat, and the other end of the spring is connected to the inner wall of the adjustment space.

[0011] Furthermore, the locking and pushing assembly includes: a pushing assembly, which is installed on the body positioning assembly to push the battery into the storage space; and a vehicle locking assembly, which is installed on the body positioning assembly to pass through the pushing assembly and lock into the positioning wire hole of the vehicle.

[0012] Furthermore, the ejection assembly includes: a jacking seat, both ends of which are provided with guide channels corresponding to the positioning wire holes; and a jacking power piece, a power output end of the jacking power piece is connected to the jacking seat.

[0013] Furthermore, the vehicle locking assembly includes: a lifting seat; a lock hole assembly, the lock hole assembly is installed on the lifting seat, and the lock hole assembly slides through the guide channel; and a push-lock power member, the power output end of the push-lock power member is installed on the lifting seat, and the push-lock power member is installed on the vehicle body positioning assembly.

[0014] Furthermore, the lock hole assembly includes: a guide rod, which slides through the guide channel; a drive assembly, which is installed on the lifting seat, and the power output end of the drive assembly is connected to the guide rod to drive the guide rod to rotate; a threaded joint is provided at the top of the guide rod.

[0015] Furthermore, the assembly component also includes: a transfer robot, which is installed on the base to send the battery to the locking and pushing component for pre-positioning.

[0016] The beneficial effects of the present invention are: (1) The present invention facilitates the installation of the battery pack housing after the vehicle is lifted by the lifting assembly through the cooperation between the lifting assembly and the assembly assembly, so that bolts can be passed through the battery pack housing and installed on the positioning wire holes on the vehicle chassis by manual or mechanical hands; (2) The present invention can lock the vehicle body through the vehicle body positioning assembly according to the parking direction of the vehicle through the mutual cooperation between the vehicle body positioning assembly and the locking and pushing assembly, so as to realize adaptive adjustment of the position of the locking and pushing assembly, thereby ensuring that the battery pack shell on the locking and pushing assembly can correspond to the installation space on the chassis, thereby facilitating the accurate installation of the battery pack shell into the installation space; (3) The present invention facilitates locking the battery pack housing into the positioning thread hole on the chassis by the locking assembly before the battery pack housing is loaded into the loading space through the mutual cooperation between the ejection assembly and the vehicle locking assembly, thereby ensuring that the vehicle body will not shift sideways or offset when the ejection assembly pushes the battery pack housing into the loading space, thereby ensuring that the battery pack housing can be accurately inserted into the loading space; (4) Through the coordinated design of the guide rod and the threaded joint, when the battery pack shell is pushed in, the perforation on the battery pack shell moves along the guide direction of the guide rod, thereby solving the side shift or offset that occurs when the battery pack shell is inserted into the installation space, thereby ensuring the position positioning accuracy of the battery pack shell when it is inserted into the installation space; In summary, the present invention has the advantages of being quick and convenient to install the battery pack shell into the mounting space on the vehicle chassis, and not causing damage to the battery pack shell or the mounting space when the battery pack shell is inserted into the mounting space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural arrangement diagram of the lifting assembly and the assembly assembly of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure after removing the lifting components; Figure 4 For the present invention Figure 3 A schematic diagram of the structure of another side; Figure 5 For the present invention Figure 4 A magnified view of the structure at center A; Figure 6 For the present invention Figure 4 Schematic diagram of the structure after removing the ejector assembly; Figure 7 For the present invention Figure 6 A magnified view of the structure at B in the middle; Figure 8 For the present invention Figure 6 Schematic diagram of the structure after the middle base is cut open. Implementation

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. Embodiment 1

[0021] like Figure 1 and 2 As shown, a battery lifting equipment for new energy vehicle manufacturing includes: a base 1; a lifting assembly 2, which is telescopically mounted on the base 1 to push the wheels to lift the vehicle to a predetermined height; and an assembly assembly 3, which is mounted in the middle of the lifting assembly 2 to position the battery to the bottom of the vehicle according to the parking state of the vehicle. The assembly assembly 3 includes: a body positioning assembly 31, which is mounted on the base 1 and locked to the front, rear, left and right surfaces of the body to determine the parking direction of the vehicle; and a locking and pushing assembly 32, which is mounted on the body positioning assembly 31. After the body positioning assembly 31 locks the parking direction of the vehicle, the locking and pushing assembly 32 passes through the perforation on the battery and is positioned in the positioning wire hole on the vehicle chassis corresponding to the perforation, and pushes the battery into the mounting space along the positioning direction.

[0022] It is not difficult to find from the above that when the battery is positioned, inserted and installed in the mounting space on the chassis of the new energy vehicle, the battery is pre-positioned and placed on the locking and pushing assembly 32, and the lifting assembly 2 lifts the moving vehicle to a predetermined height above the base 1 (this height is convenient for manual later bolts to pass through the perforations on the battery pack and connect with the positioning wire holes). The body positioning assembly 31 first detects the parking direction of the body and makes corresponding adjustments. At the same time, when adjusting, the locking and pushing assembly 32 will also follow the adjustment position, so that the battery housing can be positioned at the entire bottom of the mounting space. And by utilizing the guiding effect of the locking and pushing assembly 32, the battery pack housing can be accurately positioned and inserted into the mounting space along the guiding direction. At the same time, in order to solve the problem that when the battery pack housing is inserted into the mounting space, the battery pack housing is difficult to accurately insert into the mounting space due to the pushing effect on the vehicle, which causes the vehicle to be lifted and tilted, the locking and pushing assembly 32 will also be pre-locked into the positioning wire hole on the vehicle chassis. Then the battery pack housing is driven to be inserted into the installation space accurately along the guide direction of the locking and pushing assembly 32, and then the locking and pushing assembly 32 releases the locking of the positioning wire hole. Then the bolt is passed through the perforation on the battery pack housing manually or by a threading robot and locked in the positioning wire hole.

[0023] like Figure 2 The lifting assembly 2 shown includes a wheel seat 21 and a lifting power member 22 arranged below the wheel seat 21 and having a power output end connected to the wheel seat 21. The lifting power member 22 is preferably a cylinder, and the initial height of the upper surface of the wheel seat 21 is flush with the surface of the base 1.

[0024] like Figure 3As shown, the vehicle body positioning assembly 31 includes: a base 311 , which is provided with an adjustment space 3111 ; an adjustment seat 312 , which is spring- and slidably installed in the adjustment space 3111 ; and a locking assembly 313 , which is axially installed on the adjustment seat 312 .

[0025] In one embodiment of the present invention, when the body positioning component 31 is positioning the placement (or orientation) of the body, while being locked to the body surface by the locking component 313, the adjustment seat 312 will adaptively adjust its position within the adjustment space 3111 on the base 311. Thus, while the body positioning component 31 is adjusting its position, the locking and pushing component 32 can also be adaptively adjusted to a direction corresponding to the direction of the body, so as to facilitate the positioning of the battery pack shell.

[0026] It should be added that in order to lock the adjustment seat 312 in the adjusted position, a locking power component is also installed on the base 311, and the power output end of the locking power component corresponds to the surface of the adjustment seat 312. Therefore, after the adjustment seat 312 is adjusted, the power output end of the locking power component, which is preferably a cylinder, contacts the adjustment seat 312 to lock the position of the adjustment seat 312.

[0027] The locking assembly 313 includes: a locking terminal 3131 , which corresponds to the body side surface of the vehicle; a locking power member 3132 , which is installed on the adjustment seat 312 , and a power output end of the locking power member 3132 is connected to the locking terminal 3131 .

[0028] In this embodiment, the locking power member 3132 is preferably a cylinder, and the locking power member 3132 drives the locking terminal 3131 to move toward the surface of the vehicle body and abut against the surface of the vehicle body, thereby achieving position adjustment of the adjustment seat 312.

[0029] The locking assembly 313 further includes: a lifting power member 3133 , which is installed on a power output end of one group of locking power members 3132 , and the power output end of the lifting power member 3133 is connected to a corresponding group of locking terminals 3131 .

[0030] In one embodiment of the present invention, before the locking assembly 313 locks the vehicle body, the lifting power member 3133, which is preferably a cylinder, first drives one group of locking terminals 3131 downward to a height below the upper surface of the base 1, thereby facilitating the movement of the vehicle onto the lifting assembly 2, and then the lifting power member 3133 drives the locking terminals 3131 to return to their original positions.

[0031] like Figure 8As shown, a spring 314 is circumferentially connected to the adjustment seat 312 , and the other end of the spring 314 is connected to the inner wall of the adjustment space 3111 , so that the adjustment seat 312 can adaptively adjust its position. Embodiment 2

[0032] like Figure 3 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that: The locking and pushing assembly 32 includes: a pushing assembly 321, which is installed on the vehicle body positioning assembly 31 to push the battery into the storage space; and a vehicle locking assembly 322, which is installed on the vehicle body positioning assembly 31 to pass through the pushing assembly 321 and lock into the positioning wire hole of the vehicle.

[0033] In one embodiment of the present invention, by placing the battery pack shell on the ejection assembly 321, and allowing the locking assembly 322 to pass through the through hole on the battery pack shell and lock in the positioning wire hole, the ejection assembly 321 can insert the battery pack shell into the loading space along the guide direction of the locking assembly 322.

[0034] like Figure 4 As shown, the ejection assembly 321 includes: a lifting seat 3211 , both ends of which are provided with guide channels corresponding to the positioning wire holes; and a lifting power member 3212 , a power output end of the lifting power member 3212 is connected to the lifting seat 3211 .

[0035] In this embodiment, during the process of pushing up the battery pack shell, the pushing assembly 321 drives the lifting seat 3211 to move toward one side of the loading space through the lifting power part 3212 which is preferably a cylinder, and the locking assembly 322 guides the lifting seat 3211 to move through the guide channel.

[0036] like Figure 4 and 6 As shown, the vehicle locking assembly 322 includes: a lifting seat 3221; a locking hole assembly 3222, the locking hole assembly 3222 is installed on the lifting seat 3221, and the locking hole assembly 3222 slides through the guide channel; and a push-lock power member 3223, the power output end of the push-lock power member 3223 is installed on the lifting seat 3221, and the push-lock power member 3223 is installed on the vehicle body positioning assembly 31.

[0037] In one embodiment of the present invention, when locking the vehicle chassis, the vehicle locking assembly 322 drives the lifting seat 3221 to move toward one side of the loading space through the locking push power member 3223 which is preferably a cylinder. At the same time, the locking hole assembly 3222 locks the positioning wire hole, and after locking the vehicle, the battery pack shell is pushed into the loading space through the pushing assembly 321.

[0038] like Figure 6 and 7 As shown, the lock hole assembly 3222 includes: a guide rod 32221, which slides through the guide channel; a driving assembly 32222, which is installed on the lifting seat 3221, and the power output end of the driving assembly 32222 is connected to the guide rod 32221 to drive the guide rod 32221 to rotate; a threaded joint 32223 is provided at the top of the guide rod 32221.

[0039] In this embodiment, when locking the positioning wire hole, the locking hole assembly 3222 drives the guide rod 32221 to rotate through the driving assembly 32222, so that while the push-locking power member 3223 drives the threaded joint 32223 upward, the rotating threaded joint 32223 is locked in the positioning wire hole.

[0040] like Figure 5 As shown, the driving assembly 32222 includes a first gear 322221 installed on the lifting seat 3221 and connected to the guide rod 32221, a second gear 322222 that transmission connects two adjacent groups of first gears 322221, and a driving motor 322223 installed on the lifting seat 3221 and a power output end connected to one group of second gears 322222. The driving motor 322223 is preferably a servo motor.

[0041] like Figure 1 As shown, the assembly component 3 further includes: a transfer robot 33, which is installed on the base 1 to send the battery to the locking and pushing component 32 for pre-positioning.

[0042] In one embodiment of the present invention, the battery pack shell can be pre-positioned and placed on the locking and pushing assembly 32 by utilizing the transfer robot 33, so that the through holes on the battery pack shell can correspond to pre-pass through the threaded joint 32223 and be moved and guided by the guide rod 32221. Embodiment 3

[0043] The present invention also provides a battery hoisting method for new energy vehicle manufacturing, comprising the following steps: Step 1: Move the manipulator 33 to take the battery pack and place it on the lifting seat 3211, and make the perforation on the battery pre-positioned to pass through the guide rod 32221; Step 2: Move the vehicle onto the lifting assembly 2 and place the wheels on the lifting assembly 2. Then, the lifting assembly 2 lifts the vehicle off the base 1. Step 3: The lifting power member 3133 drives the locking terminal 3131 to reach a height corresponding to other locking terminals 3131, and the locking power member 3132 drives the locking terminal 3131 to move toward the surface of the vehicle body for clamping; Step 4: During the process of step 3, the adjustment seat 312 will adaptively adjust the position and clamping direction in the adjustment space 3111 under the elastic connection of the spring 314, so that the clamping direction corresponds to the placement direction of the vehicle body; Step 5: The push-lock power member 3223 drives the lifting seat 331 to move toward the side of the housing space at the bottom of the vehicle body. When the guide rod 32221 is about to reach the position of the positioning thread hole, the driving assembly 32222 drives the guide rod 32221 to rotate, so that the threaded connector 32223 that rotates with it rotates and is threadedly locked on the corresponding thread surface on the positioning thread hole. Step 6: After the locking is completed in step 5, the lifting power member 3212 drives the lifting seat 3211 to move along the guide direction of the guide rod 32221, so that the battery pack shell can be accurately aligned with the installation space and gradually inserted into the installation space; Step 7: While the driving assembly 32222 drives the threaded connector 32223 to rotate in the opposite direction, the push-lock power member 3223 drives the threaded connector 32223 downward to leave the positioning thread hole. Subsequently, the bolt is passed through the perforated thread on the battery and installed in the positioning thread hole manually or by a robot.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery hoisting equipment for new energy vehicle manufacturing, characterized in that: include: Base (1); A lifting assembly (2), the lifting assembly (2) being telescopically mounted on the base (1) to push the wheels and lift the vehicle to a predetermined height; as well as An assembly component (3), the assembly component (3) being mounted in the middle of the lifting component (2) and positioning the battery in the mounting space at the bottom of the vehicle according to the parking state of the vehicle; The assembly component (3) comprises: A vehicle body positioning component (31), the vehicle body positioning component (31) being mounted on the base (1) and locked to the front, rear, left, and right surfaces of the vehicle body to determine the parking direction of the vehicle; as well as A locking and pushing component (32), wherein the locking and pushing component (32) is mounted on the vehicle body positioning component (31); After the vehicle body positioning component (31) locks the parking direction of the vehicle, the locking and pushing component (32) passes through the through hole on the battery and is positioned in a positioning wire hole on the vehicle chassis corresponding to the through hole, and pushes the battery into the housing space along the positioning direction.

2. A battery hoisting device for new energy vehicle manufacturing according to claim 1, characterized in that: The vehicle body positioning component (31) comprises: A base (311), wherein the base (311) is provided with an adjustment space (3111); An adjustment seat (312), the adjustment seat (312) being spring-mounted and slidably mounted in the adjustment space (3111); A locking assembly (313), wherein the locking assembly (313) is axially mounted on the adjustment seat (312).

3. A battery hoisting device for new energy vehicle manufacturing according to claim 2, characterized in that: The locking assembly (313) comprises: A locking terminal (3131), the locking terminal (3131) corresponding to a body side surface of the vehicle; A locking power piece (3132), wherein the locking power piece (3132) is mounted on the adjustment seat (312), and a power output end of the locking power piece (3132) is connected to the locking terminal (3131).

4. A battery hoisting device for new energy vehicle manufacturing according to claim 3, characterized in that: The locking assembly (313) further comprises: A lifting power member (3133), wherein the lifting power member (3133) is installed on a power output end of one group of the locking power members (3132), and the power output end of the lifting power member (3133) is connected to a corresponding group of the locking terminals (3131).

5. The battery hoisting equipment for new energy vehicle manufacturing according to claim 2 is characterized in that: A spring (314) is circumferentially connected to the adjustment seat (312), and the other end of the spring (314) is connected to the inner wall of the adjustment space (3111).

6. A battery hoisting device for new energy vehicle manufacturing according to any one of claims 1-5, characterized in that: The locking and pushing component (32) comprises: A push-up assembly (321), the push-up assembly (321) being mounted on the vehicle body positioning assembly (31) to push the battery into the housing space; and A vehicle locking assembly (322) is mounted on the vehicle body positioning assembly (31) so as to pass through the ejection assembly (321) and be locked into the positioning wire hole of the vehicle.

7. A battery hoisting device for new energy vehicle manufacturing according to claim 6, characterized in that: The ejection assembly (321) comprises: A lifting seat (3211), wherein both ends of the lifting seat (3211) are provided with guide channels corresponding to the positioning wire holes; and A lifting power piece (3212), wherein a power output end of the lifting power piece (3212) is connected to the lifting seat (3211).

8. The battery hoisting equipment for new energy vehicle manufacturing according to claim 7 is characterized in that: The vehicle locking assembly (322) comprises: Lifting seat (3221); A locking hole assembly (3222), wherein the locking hole assembly (3222) is mounted on the lifting seat (3221), and the locking hole assembly (3222) slides through the guide channel; and A push-lock power member (3223), wherein a power output end of the push-lock power member (3223) is mounted on the lifting seat (3221), and the push-lock power member (3223) is mounted on the vehicle body positioning assembly (31).

9. The battery hoisting equipment for new energy vehicle manufacturing according to claim 8 is characterized in that: The keyhole assembly (3222) comprises: A guide rod (32221), wherein the guide rod (32221) slides through the guide channel; A driving assembly (32222), wherein the driving assembly (32222) is mounted on the lifting seat (3221), and a power output end of the driving assembly (32222) is connected to the guide rod (32221) to drive the guide rod (32221) to rotate; A threaded joint (32223) is provided at the top end of the guide rod (32221).

10. A battery hoisting device for new energy vehicle manufacturing according to claim 9, characterized in that: The assembly component (3) further comprises: A transfer robot (33) is installed on the base (1) to transfer the battery to the locking and pushing component (32) for pre-positioning.

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