Installation auxiliary device suitable for battery shell lining

Abstract

The utility model discloses an auxiliary mounting device suitable for a battery case bushing. The auxiliary mounting device comprises a base, a first mounting part and a second mounting part, the two first mounting parts are symmetrically arranged on the two sides of the upper end face of the base. The two second mounting parts are symmetrically arranged at the two ends of the upper end face of the base. The connecting line of the center points of the two first installation parts is perpendicular to the connecting line of the center points of the two second installation parts. The first mounting part comprises a first positioning mechanism, a first position adjusting mechanism and a first mounting mechanism; the first positioning mechanism and the first position adjusting mechanism are both arranged on one side of the upper end face of the base. The number of the first mounting mechanisms is multiple, and the first mounting mechanisms are all arranged on the first position adjusting mechanism. According to the utility model, the mounting efficiency and precision of the battery case bushing are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an installation auxiliary device, especially a device that can assist staff to install the bushing to the battery shell efficiently, belongs to the battery shell bushing installation equipment technical field. BACKGROUND

[0002] The battery shell is used for protecting the battery pack, a plurality of bushings are installed at the edge beam of the battery shell, the bushings can connect other parts to the battery shell, there are a plurality of bushing preset installation positions at the edge beam of the battery shell, each bushing needs to be installed into the corresponding installation hole, and the bottom end of the bushing needs to be in contact with the bottom end face of the inner wall of the installation hole, at present, the installation of the bushing is completed by manual work, the staff press the bushing into the installation hole, if the pressing force is too small, the bushing cannot be installed in place, if the pressing force is too large, the battery shell body can be damaged, once the bushing is not installed in place, when the battery shell flows to the next process, the welding quality can be seriously affected, the battery pack can be cracked or deformed when being applied to the car because the screw needs to be screwed to the car through the bushing below, the normal use of the battery pack and the safety of the car are affected, and the installation of the bushings by manual work is low in efficiency and cannot guarantee whether the bushings are installed in place or not, therefore, a device that can assist staff to efficiently and reliably install the bushings is needed. SUMMARY

[0003] The utility model aims at overcoming the defects of the prior art, providing an installation auxiliary device suitable for the bushing of the battery shell, which can not only reduce the labor intensity of the staff, but also improve the installation efficiency of the bushings on the edge beam of the battery shell and ensure that the bushings are installed in place.

[0004] The utility model solves the problems through the following technical scheme:

[0005] An installation auxiliary device suitable for the bushing of the battery shell comprises a base, a first installation part and a second installation part, the number of the first installation parts is two, and the first installation parts are symmetrically arranged on the two sides of the upper end face of the base, the number of the second installation parts is two, and the second installation parts are symmetrically arranged at the two ends of the upper end face of the base, the connecting line between the center points of the two first installation parts is perpendicular to the connecting line between the center points of the two second installation parts, the first installation part comprises a first positioning mechanism, a first position adjusting mechanism and a first installation mechanism, the first positioning mechanism and the first position adjusting mechanism are arranged on one side of the upper end face of the base, and the number of the first installation mechanisms is multiple, and the first installation mechanisms are arranged on the first position adjusting mechanism.

[0006] The first positioning mechanism comprises a first hydraulic cylinder and a first push plate; one side of the upper end surface of the base is provided with a first strip-shaped groove, and the length direction line of the first strip-shaped groove is parallel to the width direction line of the base; the first hydraulic cylinder housing is arranged at one end of the first strip-shaped groove on the upper end surface of the base close to the edge of the base; the end of the first hydraulic cylinder piston rod is connected with the first push plate through a support; the bottom end surface of the first push plate is in contact with the upper end surface of the base; the length direction line of the first push plate is parallel to the length direction line of the base, and the first push plate is located directly above the first strip-shaped groove; the signal input end of the first hydraulic cylinder is connected with the signal output end of the CPU.

[0007] The first position adjusting mechanism comprises a second hydraulic cylinder and a first long slide plate; the housing of the second hydraulic cylinder is arranged at the center of the side wall of the base; the bottom end surface of the first long slide plate is provided with a slide strip, and the length direction line of the slide strip is parallel to the width direction line of the first long slide plate; a sliding groove is arranged at the edge of the top end surface of the base, and the sliding groove is located beside the first strip-shaped groove; the length direction line of the sliding groove is parallel to the length direction line of the first strip-shaped groove, and the slide strip of the first long slide plate is slidingly arranged in the sliding groove of the top end surface of the base; the length direction line of the first long slide plate is parallel to the length direction line of the base; a horizontal support plate is arranged on the side wall of the base, and the bottom end surface of the first long slide plate is in contact with the top end surface of the horizontal support plate; one end of the second hydraulic cylinder piston rod is connected with the bottom end surface of the first long slide plate; the signal input end of the second hydraulic cylinder is connected with the signal output end of the CPU.

[0008] The first long slide plate is provided with a slide rail on the top end surface along the length direction, and a plurality of first mounting mechanisms are slidingly arranged on the slide rail of the top end surface of the first long slide plate; the first mounting mechanism comprises a first short slide plate, a second short slide plate, a lifting piece and a pressing piece; the first short slide plate is slidingly arranged on the slide rail of the top end surface of the first long slide plate, and the length direction line thereof is perpendicular to the length direction line of the first long slide plate; the first short slide plate is provided with a threaded hole, and a bolt passes through the threaded hole of the first short slide plate and presses on the first long slide plate; the first short slide plate is provided with a slide rail on the top end surface along the length direction, and the second short slide plate is slidingly arranged on the slide rail of the top end surface of the first short slide plate; the second short slide plate is provided with a threaded hole, and a bolt passes through the threaded hole of the second short slide plate and presses on the first short slide plate; the lifting piece is arranged on the top end surface of the second short slide plate, and the pressing piece is arranged on the lifting piece.

[0009] The mounting auxiliary device for the battery shell bushing, the lifting piece comprises a first electric cylinder, a first guide column, a first guide rod and a first horizontal plate; the first electric cylinder is arranged on the top end surface of the second short slide plate, and the end of the piston rod of the first electric cylinder is connected with the center of the bottom end surface of the first horizontal plate; the first guide column is arranged on the top end surface of the second short slide plate, and the top end of the first guide column is provided with a guide hole, and the first guide rod is inserted into the guide hole at the top end of the first guide column; the top end of the first guide rod is connected with one end of the bottom end surface of the first horizontal plate; and the signal input end of the first electric cylinder is connected with the signal output end of the CPU.

[0010] The mounting auxiliary device for the battery shell bushing, the pressing piece comprises a square tube, a spring, a pressing column and a pull rope type distance sensor; the square tube is arranged on the bottom end surface of the first horizontal plate away from one end of the first guide rod; the pressing column is inserted into the square tube from the square hole at the bottom end of the square tube; the top end of the inner wall of the square tube is provided with a spring, and the bottom end of the spring is connected with the top end surface of the pressing column; the pull rope type distance sensor is arranged on the side wall of the square tube, and the rope end of the pull rope type distance sensor is connected with the bottom end of the side wall of the pressing column; and the signal output end of the pull rope type distance sensor is connected with the signal input end of the CPU.

[0011] The mounting auxiliary device for the battery shell bushing, the second mounting part comprises a second positioning mechanism, a second position adjusting mechanism and a second mounting mechanism; the second positioning mechanism and the second position adjusting mechanism are arranged on one end of the upper end surface of the base; the number of the second mounting mechanisms is plural, and each of the second mounting mechanisms is arranged on the second position adjusting mechanism; and the structure of the first mounting mechanism is consistent with the structure of the second mounting mechanism.

[0012] The mounting auxiliary device for the battery shell bushing, the second positioning mechanism comprises a third hydraulic cylinder and a second push plate; one side center of the upper end surface of the base is provided with a second strip-shaped groove, and the length direction line of the second strip-shaped groove is parallel to the length direction line of the base; the third hydraulic cylinder shell is arranged on one end of the second strip-shaped groove of the upper end surface of the base close to the edge of the base; the end of the piston rod of the third hydraulic cylinder is connected with the second push plate through a support; the bottom end surface of the second push plate is in contact with the upper end surface of the base; the length direction line of the second push plate is parallel to the width direction line of the base, and the second push plate is located directly above the second strip-shaped groove; and the signal input end of the third hydraulic cylinder is connected with the signal output end of the CPU.

[0013] The mounting auxiliary device suitable for the battery shell bushing, the second position adjusting mechanism comprises a fourth hydraulic cylinder and a second long slide plate; the shell of the fourth hydraulic cylinder is arranged at the center of the side wall of the base; the bottom end surface of the second long slide plate is provided with a slide strip, the length direction line of the slide strip is parallel to the width direction line of the second long slide plate; a slide groove is arranged at the edge of the top end surface of the base, the slide groove is located beside the second strip-shaped groove, the length direction line of the slide groove is parallel to the length direction line of the second strip-shaped groove, and the slide strip of the second long slide plate is slidably arranged in the slide groove of the top end surface of the base; the length direction line of the second long slide plate is parallel to the width direction line of the base; a horizontal support plate is arranged on the side wall of the base, and the bottom end surface of the second long slide plate is in contact with the top end surface of the horizontal support plate; one end of the bottom end surface of the second long slide plate is connected with the end of the piston rod of the fourth hydraulic cylinder; and the signal input end of the third hydraulic cylinder is connected with the signal output end of the CPU.

[0014] The mounting auxiliary device suitable for the battery shell bushing, the top end surface of the second long slide plate is provided with a slide rail along the length direction thereof, and a plurality of second mounting mechanisms are slidably arranged on the slide rail of the top end surface of the second long slide plate.

[0015] The first mounting part and the second mounting part are matched, so that the staff can assist in installing the battery shell bushing; the cooperation of the positioning mechanisms enables the battery shell to be positioned; the cooperation of the position adjusting mechanisms enables the mounting mechanisms to be moved to the top of the bushing to be installed; and the cooperation of the mounting mechanisms enables the bushing to be installed into the preset mounting hole of the battery shell. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a vertical structure schematic diagram of the present utility model in the depression angle;

[0017] Figure 2 It is a local enlarged structure schematic diagram of the present utility model A;

[0018] Figure 3 It is a vertical structure schematic diagram of the present utility model in the elevation angle.

[0019] The list of reference numerals in the drawing is as follows: 1. base, 2. second mounting part, 3. first hydraulic cylinder, 4. first push plate, 5. second hydraulic cylinder, 6. first long slide plate, 7. first short slide plate, 8. second short slide plate, 9. first electric cylinder, 10. first guide column, 11. first horizontal plate, 12. square cylinder, 13. pressing column, 14. pull rope type distance sensor. DETAILED DESCRIPTION

[0020] Reference Figure 1 , 2 and Figure 3The utility model discloses a first mounting part and second mounting part 2, the quantity of first mounting part is two, and it is symmetrically arranged on the both sides of upper end surface of base 1, the quantity of second mounting part 2 is two, and it is symmetrically arranged on both ends of upper end surface of base 1, two first mounting parts and two second mounting parts cooperate and carry out the compression installation processing of the bushing at the edge of battery shell, ensure that each bushing can be installed in place under reasonable force, two first mounting parts position the both sides of the width direction of battery shell, and still carry out the auxiliary installation of the bushing on the both sides of the width direction of battery shell, the connecting line between the center point of two first mounting parts and the connecting line between the center point of two second mounting parts 2 is perpendicular to each other, two second mounting parts 2 position both ends on the length direction of battery shell, and carry out the auxiliary installation of the bushing on the length direction of battery shell.

[0021] First mounting part includes first positioning mechanism, first position adjusting mechanism and first installation mechanism, first positioning mechanism and first position adjusting mechanism all are arranged on the one side of upper end surface of base 1, positioning mechanism is used for positioning battery shell, ensures that the preset installation position of bushing is confirmed, through first position adjusting mechanism adjustment installation mechanism's position, ensure that installation mechanism can move to the just above of its corresponding bushing, the quantity of first installation mechanism is multiple, and it all is arranged on first position adjusting mechanism, every bushing has the installation mechanism corresponding to it, and each installation mechanism is used for installing the bushing corresponding to it and pressing to the place.

[0022] First positioning mechanism includes first hydraulic cylinder 3 and first push plate 4, one side center of upper end surface of base 1 is provided with first strip slot, and the length direction line of first strip slot is parallel with the width direction line of base 1, the shell of first hydraulic cylinder 3 is set in the one end of first strip slot on the upper end surface of base 1 close to the edge of base 1, the end of piston rod of first hydraulic cylinder 3 is connected with first push plate 4 through support, the bottom end surface of first push plate 4 is in contact with the upper end surface of base 1, the length direction line of first push plate 4 is parallel with the length direction line of base 1, and first push plate 4 is located just above first strip slot, the signal input end of first hydraulic cylinder 3 is connected with the signal output end of CPU, why the hydraulic cylinder is placed in strip slot is to avoid that the hydraulic cylinder blocks long skateboard advancing channel, each hydraulic cylinder pushes push plate to advance to limit the battery shell, ensure that the position is fixed when battery shell is placed on base each time, and each bushing installation site and the position of bushing are fixed.

[0023] The first position adjusting mechanism comprises a second hydraulic cylinder 5 and a first long slide plate 6; the shell of the second hydraulic cylinder 5 is arranged at the center of the side wall of the base 1; the bottom end surface of the first long slide plate 6 is provided with a slide strip, the length direction line of the slide strip is parallel to the width direction line of the first long slide plate 6; a slide groove is arranged at the edge of the top end surface of the base 1, the slide groove is located beside the first strip-shaped groove, the length direction line of the slide groove is parallel to the length direction line of the first strip-shaped groove, and the slide strip at the bottom end of the first long slide plate 6 is slidingly arranged in the slide groove of the top end surface of the base 1; under the sliding cooperation of the slide strip at the bottom end of the first long slide plate 6 and the slide groove beside the first strip-shaped groove of the top end surface of the base 1, the first long slide plate 6 slides along the width direction of the base 1, thereby driving the first mounting mechanism to move directly above the bushing, and then the first mounting mechanism presses and installs the bushings on both sides of the battery shell in the width direction to the position; the length direction line of the first long slide plate 6 is parallel to the length direction line of the base 1; a horizontal support plate is arranged on the side wall of the base 1, and the bottom end surface of the first long slide plate 6 is in contact with the top end surface of the horizontal support plate; the horizontal support plate is used to lift the part of the first long slide plate 6 away from the base; one end of the bottom end surface of the first long slide plate 6 is connected with the piston rod of the second hydraulic cylinder 5; the second hydraulic cylinder 5 can drive the first long slide plate 6 to slide; the signal input end of the second hydraulic cylinder 5 is connected with the signal output end of the CPU.

[0024] A slide rail is arranged on the top end surface of the first long slide plate 6 along the length direction thereof, and a plurality of first mounting mechanisms are slidingly arranged on the slide rail of the top end surface of the first long slide plate 6; the number of the first mounting mechanisms is consistent with the number of the bushings in the width direction of the battery shell; the first mounting mechanism comprises a first short slide plate 7, a second short slide plate 8, a lifting piece and a pressing piece; the first short slide plate 7 is slidingly arranged on the slide rail of the top end surface of the first long slide plate 6, and the length direction line thereof is perpendicular to the length direction line of the first long slide plate 6; a threaded hole is arranged on the first short slide plate 7, and a bolt passes through the threaded hole of the first short slide plate 7 and presses on the first long slide plate 6; the first short slide plate 7 can be fixed in position by tightening the bolt; a slide rail is arranged on the top end surface of the first short slide plate 7 along the length direction thereof, and the second short slide plate 8 is slidingly arranged on the slide rail of the top end surface of the first short slide plate 7; a threaded hole is arranged on the second short slide plate 8, and a bolt passes through the threaded hole of the second short slide plate 8 and presses on the first short slide plate 7; the position of the second short slide plate 8 can be fixed by tightening the bolt; through the adjustment of the positions of the first short slide plate 7 and the second short slide plate 8, when the second hydraulic cylinder 5 is actuated to the position, the pressing piece can be moved directly above the corresponding bushing; the lifting piece is arranged on the top end surface of the second short slide plate 8, and the pressing piece is arranged on the lifting piece.

[0025] The lifting member comprises a first electric cylinder 9, a first guide column 10, a first guide rod and a first horizontal plate 11; the first electric cylinder 9 is arranged on the top end surface of the second short slide plate 8, and the end of the piston rod thereof is connected with the center of the bottom end surface of the first horizontal plate 11; the first electric cylinder 9 can drive the first horizontal plate 11 to vertically lift, so as to lower the pressing member to press the bushing, and press the bushing into the preset mounting hole of the battery shell; the first guide column 10 is arranged on the top end surface of the second short slide plate 8, and a guide hole is arranged at the top end thereof, and the first guide rod is inserted into the guide hole at the top end of the first guide column 10; the first guide column 10 plays a guiding role in lifting of the first horizontal plate 11; the top end of the first guide rod is connected with one end of the bottom end surface of the first horizontal plate 11; and the signal input end of the first electric cylinder 9 is connected with the signal output end of the CPU.

[0026] The pressing member comprises a square tube 12, a spring, a pressing column 13 and a pull rope type distance sensor 14; the square tube 12 is arranged on the bottom end surface of the first horizontal plate 11 away from the first guide rod; the pressing column 13 is inserted into the square tube 12 from the square hole at the bottom end of the square tube 12; a spring is arranged at the top end of the inner wall of the square tube 12, and the bottom end of the spring is connected with the top end surface of the pressing column 13; the bushing is pressed by the elastic force of the spring, and since the elastic force of the spring is proportional to the deformation amount, the elastic deformation amount of the spring can be obtained, that is, the force pressed on the bushing by the spring can be calculated; the pull rope type distance sensor 14 is arranged on the side wall of the square tube 12, and the pull rope end thereof is connected with the bottom end of the side wall of the pressing column 13; the signal output end of the pull rope type distance sensor 14 is connected with the signal input end of the CPU; the elastic deformation amount of the spring can be obtained by measurement of the pull rope type distance sensor 14, and then the force pressed on the bushing by the spring through the pressing column 13 can be obtained, so that the pressure on the bushing is ensured to be within a reasonable range.

[0027] The first mounting part is consistent with the second mounting part 2 in principle;

[0028] The second mounting part 2 comprises a second positioning mechanism, a second position adjusting mechanism and a second mounting mechanism; the second positioning mechanism and the second position adjusting mechanism are both arranged on one end of the top end surface of the base 1; the number of the second mounting mechanisms is plural, and each of the second mounting mechanisms is arranged on the second position adjusting mechanism; and the structure of the first mounting mechanism is consistent with that of the second mounting mechanism.

[0029] The second positioning mechanism comprises a third hydraulic cylinder and a second push plate; a second strip-shaped groove is arranged on one side of the upper end surface of the base 1, and the length direction line of the second strip-shaped groove is parallel to the length direction line of the base 1; the third hydraulic cylinder housing is arranged at one end of the second strip-shaped groove on the upper end surface of the base 1 close to the edge of the base 1; the end of the third hydraulic cylinder piston rod is connected with the second push plate through a support; the bottom end surface of the second push plate is in contact with the upper end surface of the base 1; the length direction line of the second push plate is parallel to the width direction line of the base 1, and the second push plate is located directly above the second strip-shaped groove; and the signal input end of the third hydraulic cylinder is connected with the signal output end of the CPU.

[0030] The second position adjusting mechanism comprises a fourth hydraulic cylinder and a second long slide plate; the housing of the fourth hydraulic cylinder is arranged at the center of the side wall of the base 1; the bottom end surface of the second long slide plate is provided with a slide strip, and the length direction line of the slide strip is parallel to the width direction line of the second long slide plate; a slide groove is arranged at the edge of the top end surface of the base 1, and the slide groove is located beside the second strip-shaped groove; the length direction line of the slide groove is parallel to the length direction line of the second strip-shaped groove, and the slide strip of the second long slide plate is slidingly arranged in the slide groove on the top end surface of the base 1; the length direction line of the second long slide plate is parallel to the width direction line of the base 1; a horizontal support plate is arranged on the side wall of the base 1, and the bottom end surface of the second long slide plate is in contact with the top end surface of the horizontal support plate; the end of the fourth hydraulic cylinder piston rod is connected with one end of the bottom end surface of the second long slide plate; and the signal input end of the third hydraulic cylinder is connected with the signal output end of the CPU.

[0031] The top end surface of the second long slide plate is provided with a slide rail along the length direction thereof, and a plurality of second mounting mechanisms are slidingly arranged on the slide rail on the top end surface of the second long slide plate; the number of the second mounting mechanisms is consistent with the number of the bushings in the length direction of the battery shell.

[0032] The model of the CPU module in the utility model is 87C196KC.

[0033] Principle: the battery shell structures in the same batch are consistent; the positions of the bushings of the batch of battery shells to be installed are adjusted, so that when the hydraulic cylinders in the position adjusting mechanism are in place, each pressing column 13 is located directly above the corresponding bushing.

[0034] Start installation, the battery shell is placed on the base 1, then start the hydraulic cylinder in the strip slot, drive each push plate forward to push the battery shell, and limit and correct it; the position of the battery shell after correction and limiting is fixed; and the position of the bushing mounting hole on the battery shell is fixed and confirmed; then manually put the bushings one by one into the preset mounting hole; then start the hydraulic cylinder in each position adjusting mechanism, drive each pressing column 13 to advance until it moves to the top of the bushing; then start the electric cylinder 9 to drive the pressing column to descend and press the bushing. Since the deformation degree of the spring is proportional to the spring force, the size of the spring force on the corresponding pressing column can be known through the pull rope type distance sensor, and the size of the force on the bushing can also be known. Once the deformation amount of the spring corresponding to the distance sensed by the pull rope type distance sensor is within the required range, it means that the bushing is subjected to reasonable force at this time, and is installed in place. Then the electric cylinder resets, the hydraulic cylinder in the position adjusting mechanism resets, then the installed battery shell is removed, a new battery shell is put in, and the above actions are repeated.

Claims

1. An installation aid for a battery case liner, characterized by: It includes base (1), first mounting part and second mounting part (2); the number of first mounting part is two, and it is symmetrically arranged on both sides of upper end surface of base (1); the number of second mounting part (2) is two, and it is symmetrically arranged at both ends of upper end surface of base (1); the connecting line between the center points of two first mounting parts and the connecting line between the center points of two second mounting parts (2) are perpendicular to each other; the first mounting part includes first positioning mechanism, first position adjusting mechanism and first mounting mechanism; the first positioning mechanism and the first position adjusting mechanism are both arranged on one side of upper end surface of base (1); the number of first mounting mechanism is multiple, and it is all arranged on the first position adjusting mechanism.

2. The installation aid suitable for use with a battery case liner of claim 1, wherein: The first positioning mechanism includes first hydraulic cylinder (3) and first push plate (4); one side center of the upper end surface of the base (1) is provided with a first strip-shaped groove, and the length direction line of the first strip-shaped groove is parallel to the width direction line of the base (1); the shell of the first hydraulic cylinder (3) is arranged at one end of the first strip-shaped groove of the upper end surface of the base (1) close to the edge of the base (1); the end of the piston rod of the first hydraulic cylinder (3) is connected with the first push plate (4) through a support; the bottom end surface of the first push plate (4) is in contact with the upper end surface of the base (1); the length direction line of the first push plate (4) is parallel to the length direction line of the base (1), and the first push plate (4) is located directly above the first strip-shaped groove; The signal input end of the first hydraulic cylinder (3) is connected with the signal output end of the CPU.

3. The installation aid suitable for use with a battery case liner sleeve of claim 2, wherein: The first position adjusting mechanism includes second hydraulic cylinder (5) and first long slide plate (6); the shell of the second hydraulic cylinder (5) is arranged at the center of the side wall of the base (1); the bottom end surface of the first long slide plate (6) is provided with a slide strip, and the length direction line of the slide strip is parallel to the width direction line of the first long slide plate (6); a slide groove is arranged at the edge of the top end surface of the base (1), and the slide groove is located beside the first strip-shaped groove, the length direction line of the slide groove is parallel to the length direction line of the first strip-shaped groove, and the slide strip of the first long slide plate (6) is slidably arranged in the slide groove of the top end surface of the base (1); the length direction line of the first long slide plate (6) is parallel to the length direction line of the base (1); a horizontal support plate is arranged on the side wall of the base (1), and the bottom end surface of the first long slide plate (6) is in contact with the top end surface of the horizontal support plate; one end of the piston rod of the second hydraulic cylinder (5) is connected with the bottom end surface of the first long slide plate (6); the signal input end of the second hydraulic cylinder (5) is connected with the signal output end of the CPU.

4. The installation aid suitable for use with a battery case liner sleeve of claim 3, wherein: The top end surface of the first long slide plate (6) is provided with a slide rail along the length direction, and a plurality of first mounting mechanisms are slidingly arranged on the slide rail of the top end surface of the first long slide plate (6); the first mounting mechanism comprises a first short slide plate (7), a second short slide plate (8), a lifting piece and a pressing piece; the first short slide plate (7) is slidingly arranged on the slide rail of the top end surface of the first long slide plate (6), and the length direction line of the first short slide plate (7) is perpendicular to the length direction line of the first long slide plate (6); the first short slide plate (7) is provided with a threaded hole, and a bolt passes through the threaded hole of the first short slide plate (7) and presses on the first long slide plate (6); the top end surface of the first short slide plate (7) is provided with a slide rail along the length direction, and the second short slide plate (8) is slidingly arranged on the slide rail of the top end surface of the first short slide plate (7); the second short slide plate (8) is provided with a threaded hole, and a bolt passes through the threaded hole of the second short slide plate (8) and presses on the first short slide plate (7); the lifting piece is arranged on the top end surface of the second short slide plate (8), and the pressing piece is arranged on the lifting piece.

5. The installation aid suitable for use with a battery case liner sleeve of claim 4, wherein: The lifting piece comprises a first electric cylinder (9), a first guide column (10), a first guide rod and a first horizontal plate (11); the first electric cylinder (9) is arranged on the top end surface of the second short slide plate (8), and the end of the piston rod is connected with the center of the bottom end surface of the first horizontal plate (11); the first guide column (10) is arranged on the top end surface of the second short slide plate (8), and the top end is provided with a guide hole, and the first guide rod is inserted into the guide hole at the top end of the first guide column (10); the top end of the first guide rod is connected with one end of the bottom end surface of the first horizontal plate (11); the signal input end of the first electric cylinder (9) is connected with the signal output end of the CPU.

6. The installation aid suitable for use with a battery case liner sleeve of claim 5, wherein: The pressing piece comprises a square tube (12), a spring, a pressing column (13) and a pull rope type distance sensor (14); the square tube (12) is arranged on the end of the bottom end surface of the first horizontal plate (11) away from the first guide rod; the pressing column (13) is inserted into the square tube (12) from the square hole at the bottom end of the square tube (12); the top end of the inner wall of the square tube (12) is provided with a spring, and the bottom end of the spring is connected with the top end surface of the pressing column (13); the pull rope type distance sensor (14) is arranged on the side wall of the square tube (12), and the rope end is connected with the bottom end of the side wall of the pressing column (13); the signal output end of the pull rope type distance sensor (14) is connected with the signal input end of the CPU.

7. The installation aid suitable for use with a battery case liner sleeve of claim 6, wherein: The second mounting part (2) comprises a second positioning mechanism, a second position adjusting mechanism and a second mounting mechanism; the second positioning mechanism and the second position adjusting mechanism are arranged on one end of the top end surface of the base (1); the number of the second mounting mechanisms is plural, and each is arranged on the second position adjusting mechanism; the structure of the first mounting mechanism is consistent with that of the second mounting mechanism.

8. The installation aid suitable for use with a battery case liner sleeve of claim 7, wherein: The second positioning mechanism comprises a third hydraulic cylinder and a second push plate; one side of the upper end surface of the base (1) is provided with a second strip-shaped groove, and the length direction line of the second strip-shaped groove is parallel to the length direction line of the base (1); the third hydraulic cylinder shell is arranged at one end of the second strip-shaped groove on the upper end surface of the base (1) close to the edge of the base (1); the end of the third hydraulic cylinder piston rod is connected with the second push plate through a support; the bottom end surface of the second push plate is in contact with the upper end surface of the base (1); the length direction line of the second push plate is parallel to the width direction line of the base (1), and the second push plate is located directly above the second strip-shaped groove; the signal input end of the third hydraulic cylinder is connected with the signal output end of the CPU.

9. The installation aid suitable for use with a battery case liner sleeve of claim 8, wherein: The second position adjusting mechanism comprises a fourth hydraulic cylinder and a second long slide plate; the shell of the fourth hydraulic cylinder is arranged at the center of the side wall of the base (1); the bottom end surface of the second long slide plate is provided with a slide strip, and the length direction line of the slide strip is parallel to the width direction line of the second long slide plate; the edge of the top end surface of the base (1) is provided with a sliding groove, and the sliding groove is located beside the second strip-shaped groove; the length direction line of the sliding groove is parallel to the length direction line of the second strip-shaped groove, and the slide strip of the second long slide plate is slidingly arranged in the sliding groove on the top end surface of the base (1); the length direction line of the second long slide plate is parallel to the width direction line of the base (1); a horizontal support plate is arranged on the side wall of the base (1), and the bottom end surface of the second long slide plate is in contact with the top end surface of the horizontal support plate; the end of the fourth hydraulic cylinder piston rod is connected with one end of the bottom end surface of the second long slide plate; the signal input end of the third hydraulic cylinder is connected with the signal output end of the CPU.

10. The installation aid suitable for use with a battery case liner sleeve of claim 9, wherein: The top end surface of the second long slide plate is provided with a slide rail along the length direction thereof, and a plurality of second mounting mechanisms are slidingly arranged on the slide rail on the top end surface of the second long slide plate.

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