CN218123476U

CN218123476U - Bottom-pocket device

Info

Publication number: CN218123476U
Application number: CN202221268304.2U
Authority: CN
Inventors: 杨平; 李亮; 郝进发
Original assignee: Jiangsu Fenghesheng Intelligent Technology Co ltd
Current assignee: Jiangsu Fenghesheng Intelligent Technology Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-12-23
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses a device at bottom of pocket belongs to new energy automobile battery technical field. The device comprises a first mounting table and a second mounting table, the bottom of the first mounting table is connected with a first plate block and a second plate block in a sliding mode, the bottom of the second mounting table is connected with a third plate block and a fourth plate block in a sliding mode, a first driving mechanism is installed on the first plate block and the second plate block, a second driving mechanism is installed on the third plate block and the fourth plate block, a first fixing block is fixedly connected to one side, opposite to the first plate block and the third plate block, of the first fixing block, a first lifting plate is connected to the first fixing block in a sliding mode, a first pocket bottom plate is fixedly connected between the first lifting plate, a third driving mechanism is installed on the first fixing block, a second fixing block is fixedly connected to one side, opposite to the second plate block and the fourth plate block, a second lifting plate is connected to the second fixing block in a sliding mode, a second pocket bottom plate is fixedly connected between the second lifting plates, and a fourth driving mechanism is installed on the second fixing block. The technical problem of poor hoisting safety of the battery module is solved.

Description

Bottom-pocket device

Technical Field

The utility model relates to a device at bottom of pocket belongs to new energy automobile battery technical field.

Background

In the production assembling process of new energy automobile, because battery module is heavier, lead to the risk that drops at the in-process of assembling income case. Current battery module is generally through hoisting by the top that the sucking disc adsorbs battery module when the assembly is gone into the case, nevertheless still exists machine fault or the sucking disc leaks gas and leads to the risk that battery module dropped the damage at the in-process of hoist and mount, and the hoist and mount security is relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a device at bottom of pocket, solve the relatively poor technical problem of battery module hoist and mount security among the prior art.

In order to realize the above-mentioned purpose, the utility model provides a pocket bottom device, its first mount table and the second mount table that includes the horizontal symmetry setting, the bottom sliding connection of first mount table has first plate and second plate, the bottom sliding connection of second mount table has third plate and fourth plate, first plate corresponds the setting with the third plate, and the second plate corresponds the setting with the fourth plate, install on first plate and the second plate and be used for driving first plate and the gliding first actuating mechanism of second plate level, install on third plate and the fourth plate and be used for driving third plate and the gliding second actuating mechanism of fourth plate level, the relative one side of first plate and third plate has linked firmly first fixed block respectively, sliding connection has first lifter plate on the first fixed block, first pocket bottom plate has been linked firmly between the first lifter plate, install on the first third actuating mechanism that is used for driving first lifter plate to go up and down, the relative one side of second plate and fourth plate has linked firmly the second lifter fixed block respectively, be used for the second lifter bottom plate is connected with the second lifter bottom plate and is used for the second lifter fixed block.

Furthermore, the first driving mechanism includes a first cylinder, the front end of the first plate is fixedly connected with a first push-pull plate, the rear end of the first push-pull plate is fixedly connected with a first mounting block, the rear end of the second plate is fixedly connected with a second push-pull plate, the telescopic end of the first cylinder is fixedly connected with the second push-pull plate, and the end of the first cylinder, far away from the telescopic end, is fixedly connected with the first mounting block.

Furthermore, the second driving mechanism comprises a second cylinder, a third push-pull plate is fixedly connected to the front end of the third plate, a fourth push-pull plate is fixedly connected to the rear end of the fourth plate, a second mounting block is fixedly connected to the front end of the fourth push-pull plate, the telescopic end of the second cylinder is fixedly connected to the third push-pull plate, and one end, far away from the telescopic end, of the second cylinder is fixedly connected to the second mounting block.

Further, third actuating mechanism includes the third cylinder, linked firmly first mount pad on the first fixed block, the third cylinder is installed on first mount pad, linked firmly first elevator on the first lifter plate, the flexible end and the first elevator of third cylinder link firmly.

Further, fourth drive mechanism includes the fourth cylinder, the second mount pad has been linked firmly on the second fixed block, the fourth cylinder is installed on the second mount pad, the second lifter block has been linked firmly on the second lifter plate, the flexible end and the second lifter block of fourth cylinder link firmly.

Further, the front end of the first installation platform located on the first push-pull plate is fixedly connected with a first limiting plate block, the first limiting plate block is provided with a first proximity sensor used for detecting the extension stroke of the first push-pull plate, the rear end of the first installation platform located on the first push-pull plate is fixedly connected with a second limiting plate block, the second limiting plate block is provided with a second proximity switch used for detecting the contraction stroke of the first push-pull plate, the front end of the first installation platform located on the second push-pull plate is fixedly connected with a first limiting seat, the first limiting seat is fixedly connected with a third limiting plate block, the third limiting plate block is provided with a third proximity switch used for detecting the contraction stroke of the second push-pull plate, the rear end of the first installation platform located on the second push-pull plate is fixedly connected with a fourth limiting plate block, the fourth limiting plate block is provided with a fourth proximity switch used for detecting the extension stroke of the second push-pull plate, the bottom of the first installation platform is fixedly connected with a first shock absorber seat corresponding to the first limiting plate block, the first shock absorber is installed on the first shock absorber seat, the second limiting plate block is installed on the second shock absorber, and the fourth limiting plate block is installed on the second shock absorber.

Furthermore, a fifth limiting plate block is fixedly connected to the front end, located on the third push-pull plate, of the second mounting table, a fifth proximity sensor used for detecting the extension stroke of the third push-pull plate is installed on the fifth limiting plate block, a second limiting seat is fixedly connected to the rear end, located on the third push-pull plate, of the second mounting table, a sixth limiting plate block is fixedly connected to the second limiting seat, a sixth proximity switch used for detecting the contraction stroke of the third push-pull plate is installed on the sixth limiting plate block, a seventh limiting plate block is fixedly connected to the front end, located on the fourth push-pull plate, of the second mounting table, a seventh proximity switch used for detecting the contraction stroke of the fourth push-pull plate is installed on the seventh limiting plate block, an eighth limiting plate block is fixedly connected to the rear end, located on the fourth push-pull plate, an eighth proximity switch used for detecting the extension stroke of the fourth push-pull plate is installed on the eighth limiting plate block, a third shock absorber seat corresponding to the fifth limiting plate block is installed on the third shock absorber seat, an eighth limiting plate block is installed on the second limiting seat, and a seventh shock absorber block is installed on the shock absorber block.

Further, threaded connection has first positioning bolt on the first lifter plate, install ninth proximity switch and the tenth proximity switch that is used for detecting first positioning bolt on the first mount pad, the top of first lifter plate has linked firmly the fifth shock absorber seat, install the ninth bumper shock absorber on the fifth shock absorber seat.

Furthermore, threaded connection has a second positioning bolt on the second lifter plate, install eleventh proximity switch and the twelfth proximity switch that is used for detecting second positioning bolt on the second mount pad, the top of second lifter plate has linked firmly the sixth shock absorber seat, install the tenth bumper shock absorber on the sixth shock absorber seat.

Furthermore, a clamping interface is formed in the front end of the second bag bottom plate.

Compared with the prior art, the invention has the following beneficial effects:

in the process of hoisting, the horizontal movement of the first pocket bottom plate and the second pocket bottom plate is synchronously driven by the first driving mechanism and the second driving mechanism, and the vertical movement of the first pocket bottom plate and the second pocket bottom plate is driven by the third driving mechanism and the fourth driving mechanism to realize the fixed support of the first pocket bottom plate and the second pocket bottom plate for the bottom of the battery module, so that the risk of the battery module falling and being damaged in the hoisting process is effectively avoided, and the hoisting safety is improved.

Drawings

Fig. 1 is a schematic structural view of a first viewing angle of a bottom pocket device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a second view angle of the bottom pocket device according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a third view angle of the bottom pocket device according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a fourth view angle of the bottom pocket device according to an embodiment of the present invention;

fig. 5 is a top view of the bottom pocket device provided in the embodiment of the present invention.

In the figure: 1. a first mounting table; 2. a fourth shock absorber; 3. an eleventh proximity switch; 4. a fourth cylinder; 5. a second lifting block; 6. a second lifter plate; 7. a second pocket floor; 8. a second mounting table; 9. a second cylinder; 10. a first pocket floor; 11. a first lifter plate; 12. a tenth proximity switch; 13. a first mounting seat; 14. a first fixed block; 15. a first cushion socket; 16. a first shock absorber; 17. a first limit plate; 18. a first proximity sensor; 19. a second shock absorber; 20. a second proximity switch; 21. a second limit plate; 22. a ninth damper; 23. a first cylinder; 24. a first limiting seat; 25. a third limiting plate; 26. a third proximity switch; 27. a second push-pull plate; 28. a fourth limit plate; 29. a fourth proximity switch; 30. a fifth cushion socket; 31. a second mounting seat; 32. a third cylinder; 33. a first positioning bolt; 34. a ninth proximity switch; 35. a first lifting block; 36. a first push-pull plate; 37. a second fixed block; 38. a fourth cushion socket; 39. a seventh shock absorber; 40. an eighth limit plate; 41. an eighth proximity switch; 42. a seventh proximity switch; 43. a seventh limit plate; 44. a second limiting seat; 45. a sixth proximity switch; 46. a sixth limiting plate; 47. a third push-pull plate; 48. a fifth limiting plate; 49. a third cushion socket; 50. a fifth shock absorber; 51. a fifth proximity sensor; 52. a second mounting block; 53. a fourth push-pull plate; 54. a sixth cushion socket; 55. a tenth shock absorber; 56. a first plate; 57. a fourth plate; 58. a third plate; 59. a twelfth proximity switch; 60. a card interface; 61. a second plate; 62. a first mounting block; 63. a second cushion socket; 64. a third damper; 65. an eighth damper; 66. and a second positioning bolt.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 to 5, the present invention provides a bottom-pocket device, which comprises a first mounting platform 1 and a second mounting platform 8, which are horizontally and symmetrically arranged;

first mount table 1 and second mount table 8 set up the cuboid plate of opening for the middle part, the bottom sliding connection of first mount table 1 has first plate 56 and second plate 61, and is specific, bolt fixedly connected with draw runner is passed through to the bottom front end both sides of first mount table 1, the slider that bolt fixedly connected with and draw runner match is passed through to the top both sides of first plate 56, the draw runner of 1 bottom front end both sides of first mount table and the slider joint of 56 top both sides of first plate so that first mount table 1 and first plate 56 sliding connection, bolt fixedly connected with draw runner is passed through to the bottom rear end both sides of first mount table 1, the slider that bolt fixedly connected with and draw runner match is passed through to the top both sides of second plate 61, the draw runner of 1 bottom rear end both sides of first mount table and the slider joint of 61 top both sides of second plate 61 so that first mount table 1 and second plate 61 sliding connection. A third plate 58 and a fourth plate 57 are slidably connected to the bottom of the second mounting table 8, and the third plate 58 and the fourth plate 57 are slidably connected to the second mounting table 8 in the same manner as the first plate 56 and the second plate 61 are slidably connected to the first mounting table 1. The first plate 56 and the third plate 58 are symmetrically arranged, the second plate 61 and the fourth plate 57 are symmetrically arranged, a first driving mechanism for driving the first plate 56 and the second plate 61 to horizontally slide is mounted on the first plate 56 and the second plate 61, specifically, the first driving mechanism comprises a first air cylinder 23, the front end of the first plate 56 is fixedly connected with a first push-pull plate 36 through a bolt, the rear end of the first push-pull plate 36 is fixedly connected with a first mounting block 62 through a bolt, the rear end of the second plate 61 is fixedly connected with a second push-pull plate 27 through a bolt, the telescopic end of the first air cylinder 23 is fixedly connected with the second push-pull plate 27, and one end of the first air cylinder 23, which is far away from the telescopic end, is fixedly connected with the first mounting block 62. The third plate 58 and the fourth plate 57 are provided with a second driving mechanism for driving the third plate 58 and the fourth plate 57 to horizontally slide, specifically, the second driving mechanism includes a second cylinder 9, the front end of the third plate 58 is fixedly connected with a third push-pull plate 47 through a bolt, the rear end of the fourth plate 57 is fixedly connected with a fourth push-pull plate 53, the front end of the fourth push-pull plate 53 is fixedly connected with a second mounting block 52 through a bolt, the telescopic end of the second cylinder 9 is fixedly connected with the third push-pull plate 47, and the end of the second cylinder 9 away from the telescopic end is fixedly connected with the second mounting block 52. First fixed block 14 has been welded respectively to the relative one side of first plate 56 and third plate 58, and sliding connection has first lifter plate 11 on first fixed block 14, and is specific, first fixed block 14 leans on first lifter plate 11 one side through bolt fixedly connected with slider, and first lifter plate 11 leans on first fixed block 14 one side through bolt fixedly connected with draw runner, and first fixed block 14 leans on the slider of first lifter plate 11 one side and the draw runner joint that first lifter plate 11 leaned on first fixed block 14 one side so that first fixed block 14 and first lifter plate 11 sliding connection. Through the first pocket bottom plate 10 of bolt fixedly connected with between the first lifter plate 11 of two relative settings, install the third actuating mechanism who is used for driving first lifter plate 11 to go up and down on the first fixed block 14, it is concrete, the third actuating mechanism includes third cylinder 32, through the first mount pad 13 of bolt fixedly connected with on the first fixed block 14, third cylinder 32 is installed on first mount pad 13, through the first lifter block 35 of bolt fixedly connected with on the first lifter plate 11, the flexible end and the first lifter block 35 fixed connection of third cylinder 32. The opposite sides of the second plate 61 and the fourth plate 57 are fixedly connected with a second fixing block 37 respectively, the second fixing block 37 is slidably connected with a second lifting plate 6, specifically, the second fixing block 37 is connected with a sliding block through a bolt through one side of the second lifting plate 6, the second lifting plate 6 is connected with a sliding strip through a bolt through one side of the second fixing block 37, and the sliding block of the second lifting plate 37 is connected with the sliding strip of the second lifting plate 6 through one side of the second fixing block 37 in a clamping manner so as to enable the second fixing block 37 to be slidably connected with the second lifting plate 6. A second pocket bottom plate 7 is fixedly connected between the two oppositely arranged second lifting plates 6 through bolts, and a fourth driving mechanism for driving the second lifting plates 6 to lift is installed on the second fixing block 37. Specifically, the fourth driving mechanism includes a fourth cylinder 4, the second fixing block 37 is fixedly connected to the second mounting seat 31 through a bolt, the fourth cylinder 4 is mounted on the second mounting seat 31, the second lifting plate 6 is fixedly connected to the second lifting block 5 through a bolt, and a telescopic end of the fourth cylinder 4 is fixedly connected to the second lifting block 5.

In the application, firstly, make first cylinder 23 and second cylinder 9 stretch out in step and make first pocket bottom plate 10 and second pocket bottom plate 7 outwards slide, when first cylinder 23 and second cylinder 9 stretch out to target in place, the outward slip stops, third cylinder 32 and fourth cylinder 4 stretch out simultaneously and make first pocket bottom plate 10 and second pocket bottom plate 7 slide downwards, when third cylinder 32 and fourth cylinder 4 stretch out to target in place, the downward slip stops, first cylinder 23 and second cylinder 9 shrink in step make first pocket bottom plate 10 and second pocket bottom plate 7 inwards slide after that, when first pocket bottom plate 10 and second pocket bottom plate 7 inwards slide to the bottom of battery module and correspond the department, the inward slip stops, make third cylinder 32 and fourth cylinder 4 shrink make first pocket bottom plate 10 and second pocket bottom plate 7 upwards slide again, when first pocket bottom plate 10 and second pocket bottom plate 7 and the bottom of battery module butt, the upwards slide stops, and then reach the purpose of supporting the bottom of battery module.

In one embodiment, a first limiting plate block 17 is fixedly connected to the front end of a first installation platform 1, which is located at a first push-pull plate 36, through bolts, a first proximity sensor 18 for detecting that the first push-pull plate 36 extends out of the first limiting plate block 17 is installed on the first limiting plate block 17, a second limiting plate block 21 is fixedly connected to the rear end of the first push-pull plate 36 through bolts, a second proximity switch 20 for detecting that the first push-pull plate 36 contracts into the first limiting plate block 21 is installed on the second limiting plate block 21, a first limiting seat 24 is fixedly connected to the front end of the first installation platform 1, which is located at a second push-pull plate 27, through bolts, a third limiting plate block 25 is fixedly connected to the first limiting seat 24 through bolts, a third proximity switch 26 for detecting that the second push-pull plate 27 contracts into the second limiting plate block 25 is installed on the third limiting plate block 25, a fourth limiting plate block 28 is fixedly connected to the rear end of the first installation platform 1, which is located at the second push-pull plate 27, through bolts, a fourth limiting plate block 28 is installed with a fourth limiting plate block 29 for detecting that the second push-pull plate 27 extends out of the second push-pull plate 27, a damper 15 is installed on the fourth limiting plate block 28, a damper 16 is installed on the first installation platform 1, and a damper 16 is installed on the second damper 15, and a damper 16 is installed on the first damper 15, and a damper. The bottom of the first mounting table 1 is fixedly connected with a second shock absorption seat 63 corresponding to the fourth limiting plate 28 through bolts, a third shock absorber 49 is mounted on the second shock absorption seat 63, a fourth shock absorber 2 is mounted on the first limiting seat 24, and the third shock absorber 49 and the fourth shock absorber 2 can buffer the second push-pull plate 27.

In one embodiment, the second mounting table 8 is located at the front end of the third push-pull plate 47 and fixedly connected with a fifth limiting plate block 48 through bolts, a fifth proximity sensor 51 used for detecting that the third push-pull plate 47 extends to the right is installed on the fifth limiting plate block 48, the second mounting table 8 is located at the rear end of the third push-pull plate 47 and fixedly connected with a second limiting seat 44 through bolts, a sixth limiting plate block 46 is fixedly connected with the second limiting seat 44 through bolts, a sixth proximity switch 45 used for detecting that the third push-pull plate 47 contracts to the right is installed on the sixth limiting plate block 46, the front end of the fourth push-pull plate 53 of the second mounting table 8 is fixedly connected with a seventh limiting plate block 43 through bolts, a seventh proximity switch 42 used for detecting that the fourth push-pull plate 53 contracts to the right is installed on the seventh limiting plate block 43, an eighth limiting plate block 40 is fixedly connected with the rear end of the fourth push-pull plate 53 through bolts, an eighth limiting plate block 40 used for detecting that the fourth push-pull plate 53 contracts to the right is installed on the seventh limiting plate block 43, an eighth limiting plate block 41 used for detecting that the fourth push-pull plate 53 extends to the right is installed on the eighth limiting plate 40, a damper block 64 is installed on the eighth limiting plate block 40 through bolts, a damper seat 64 installed on the fifth limiting seat installed corresponding to the fifth damping plate block 48, and a damper seat 50, and a damper is installed on the fifth damping plate block 50, and a damper installed on the fifth damping plate block 48, and a damper 50. The bottom of the second mounting table 8 is fixedly connected with a fourth shock absorption seat 38 corresponding to the eighth limiting plate 40 through bolts, a seventh shock absorber 39 is mounted on the fourth shock absorption seat 38, an eighth shock absorber 65 is mounted on the seventh limiting plate 43, and the seventh shock absorber 39 and the eighth shock absorber 65 can buffer the fourth push-pull plate 53.

The utility model provides an embodiment, threaded hole is seted up to the front end of first lifter plate 11, threaded connection has first positioning bolt 33 in the threaded hole, ninth proximity switch 34 and tenth proximity switch 12 that are used for detecting first positioning bolt 33 vertical movement and target in place are installed to the front end of first mount pad 13, the welding of the top of first lifter plate 11 has fifth cushion socket 30, install ninth bumper shock absorber 22 on the fifth cushion socket 30, ninth bumper shock absorber 22 can play the effect of buffering when descending to first lifter plate 11.

According to the embodiment, the front end of the second lifting plate 6 is provided with a threaded hole, a second positioning bolt 66 is in threaded connection with the threaded hole, an eleventh proximity switch 3 and a twelfth proximity switch 59 which are used for detecting that the second positioning bolt 66 vertically moves in place are installed at the front end of the second installation seat 31, a sixth shock absorption seat 54 is welded at the top of the second lifting plate 6, a tenth shock absorber 55 is installed on the sixth shock absorption seat 54, and the tenth shock absorber 55 can play a role in buffering the descending of the second lifting plate 6. The second positioning bolt 66, the eleventh proximity switch 3, and the twelfth proximity switch 59 are provided in the same manner as the first positioning bolt 33, the ninth proximity switch 34, and the tenth proximity switch 12.

The utility model provides an embodiment, joint interface 60 has been seted up to the front end of second pocket bottom plate 7, when supporting the bottom of battery module, joint interface 60 not only can play the effect of dodging to the bottom arch of battery module, also can play the effect of location moreover.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a pocket bottom device, its characterized in that, includes first mount table and the second mount table that the level symmetry set up, the bottom sliding connection of first mount table has first plate and second plate, the bottom sliding connection of second mount table has third plate and fourth plate, first plate corresponds the setting with the third plate, and the second plate corresponds the setting with the fourth plate, install on first plate and the second plate and be used for driving first plate and the gliding first actuating mechanism of second plate level, install on third plate and the fourth plate and be used for driving third plate and the gliding second actuating mechanism of fourth plate level, the relative one side of first plate and third plate has linked firmly first fixed block respectively, sliding connection has first lifter plate on the first fixed block, linked firmly first pocket bottom plate between the first lifter plate, install the third actuating mechanism who is used for driving first lifter plate lift on the first fixed block, the relative one side of second plate and fourth plate has linked firmly the second fixed block respectively, linked firmly on the second lifter plate, be connected with the second lifter bottom plate on the second lifter plate, be used for driving mechanism installs the second lifter plate.

2. The bottom mounting device as claimed in claim 1, wherein the first driving mechanism comprises a first cylinder, a first push-pull plate is fixedly connected to a front end of the first plate, a first mounting block is fixedly connected to a rear end of the first push-pull plate, a second push-pull plate is fixedly connected to a rear end of the second plate, a telescopic end of the first cylinder is fixedly connected to the second push-pull plate, and an end of the first cylinder, which is far away from the telescopic end, is fixedly connected to the first mounting block.

3. The bottom pocket device according to claim 1, wherein the second driving mechanism comprises a second cylinder, a third push-pull plate is fixedly connected to a front end of the third plate, a fourth push-pull plate is fixedly connected to a rear end of the fourth plate, a second mounting block is fixedly connected to a front end of the fourth push-pull plate, a telescopic end of the second cylinder is fixedly connected to the third push-pull plate, and an end of the second cylinder, which is far away from the telescopic end, is fixedly connected to the second mounting block.

4. The bottom pocket device as claimed in claim 1, wherein the third driving mechanism comprises a third cylinder, the first fixed block is fixedly connected with a first mounting seat, the third cylinder is mounted on the first mounting seat, the first lifting plate is fixedly connected with a first lifting block, and a telescopic end of the third cylinder is fixedly connected with the first lifting block.

5. The bottom pocket device as claimed in claim 1, wherein the fourth driving mechanism comprises a fourth cylinder, the second fixed block is fixedly connected with a second mounting seat, the fourth cylinder is mounted on the second mounting seat, the second lifting plate is fixedly connected with a second lifting block, and a telescopic end of the fourth cylinder is fixedly connected with the second lifting block.

6. The bottom mounting device according to claim 2, wherein a first limit plate block is fixedly connected to a front end of the first push-pull plate of the first mounting table, a first proximity sensor for detecting an extension stroke of the first push-pull plate is mounted on the first limit plate block, a second limit plate block is fixedly connected to a rear end of the first push-pull plate of the first mounting table, a second proximity switch for detecting a retraction stroke of the first push-pull plate is mounted on the second limit plate block, a first limit seat is fixedly connected to a front end of the second push-pull plate of the first mounting table, a third limit plate block is fixedly connected to the first limit seat, a third proximity switch for detecting a retraction stroke of the second push-pull plate is mounted on the third limit plate block, a fourth limit plate block is fixedly connected to a rear end of the second push-pull plate of the first mounting table, a fourth proximity switch for detecting an extension stroke of the second push-pull plate is mounted on the fourth limit plate block, a first shock absorber seat corresponding to the first limit plate block is mounted on the first shock absorber seat, a second shock absorber block is mounted on the second limit seat, a shock absorber block is mounted on the second limit seat, and a shock absorber block is mounted on the second limit seat.

7. The bottom mounting device according to claim 3, wherein a fifth limiting plate block is fixedly connected to the front end of the third push-pull plate of the second mounting table, a fifth proximity sensor for detecting the extension stroke of the third push-pull plate is mounted on the fifth limiting plate block, a second limiting seat is fixedly connected to the rear end of the third push-pull plate of the second mounting table, a sixth limiting plate block is fixedly connected to the second limiting seat, a sixth proximity switch for detecting the retraction stroke of the third push-pull plate is mounted on the sixth limiting plate block, a seventh limiting plate block is fixedly connected to the front end of the fourth push-pull plate of the second mounting table, a seventh proximity switch for detecting the retraction stroke of the fourth push-pull plate is mounted on the seventh limiting plate block, an eighth limiting plate block is fixedly connected to the rear end of the fourth push-pull plate of the second mounting table, an eighth proximity switch for detecting the extension stroke of the fourth push-pull plate is mounted on the eighth limiting plate block, a third shock absorber block arranged corresponding to the fifth limiting plate block is mounted on the third shock absorber, a seventh limiting seat is mounted on the shock absorber block, and a fourth limiting seat is mounted on the shock absorber block.

8. The bottom pocket device according to claim 4, wherein a first positioning bolt is connected to the first lifting plate in a threaded manner, a ninth proximity switch and a tenth proximity switch for detecting the first positioning bolt are mounted on the first mounting seat, a fifth damping seat is fixedly connected to the top of the first lifting plate, and a ninth damper is mounted on the fifth damping seat.

9. The bottom pocket device according to claim 5, wherein a second positioning bolt is connected to the second lifting plate in a threaded manner, an eleventh proximity switch and a twelfth proximity switch for detecting the second positioning bolt are mounted on the second mounting seat, a sixth shock absorbing seat is fixedly connected to the top of the second lifting plate, and a tenth shock absorber is mounted on the sixth shock absorbing seat.

10. The bottom pocket device as claimed in claim 1, wherein a snap interface is formed at a front end of the second pocket bottom plate.