Automatic remodeling equipment for battery cell tray

Abstract

The utility model relates to automatic battery cell tray remodeling equipment which comprises a lining assembling and disassembling mechanism and a lining grabbing mechanism which are matched with each other, the lining assembling and disassembling mechanism comprises a tray positioning sliding frame used for positioning a tray outer frame, and a screw assembling and disassembling mechanism used for assembling and disassembling a tray lining in the tray outer frame is arranged at the bottom of the tray positioning sliding frame; the lining grabbing mechanism is located above the lining assembling and disassembling mechanism and comprises a clamping jaw mechanism used for clamping the tray lining and a three-axis carrying module used for driving the clamping jaw mechanism to carry the tray lining to a set station. The new and old tray linings in the tray outer frame are automatically disassembled and assembled through the lining assembling and disassembling mechanism and the lining grabbing mechanism, so that the tray outer frame can be repeatedly used, the new and old tray linings in the tray outer frame are automatically replaced and assembled, and the tray assembling efficiency is improved. The problem of cost investment in manual replacement of the tray lining is solved, and the cost for purchasing the tray in the battery cell conveying process is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of material tray assembly equipment, and in particular to an automatic changing device for a battery tray. Background Art

[0002] With the continuous improvement of technology and the diversification of market demand, the types and specifications of battery cells produced are also increasing. As a result, during production, factories will customize pallets of different specifications according to different battery cell blueprint models.

[0003] The increase in the number of battery cell blueprints will lead to an increase in the number of pallets that need to be purchased. Therefore, when using the same pallet frame, it is necessary to replace the pallet lining to achieve the pallet change.

[0004] Replacing the pallet lining is a time-consuming and labor-intensive process. Manually replacing a pallet requires first removing the old pallet lining and then installing the new pallet lining. It takes 8-10 minutes to disassemble and assemble a pallet. Additional manpower must be added to replace and assemble at the same time to meet production needs. Summary of the invention

[0005] The embodiment of the present application provides an automatic changing device for a battery cell tray to solve the problem of time-consuming and labor-intensive manual replacement of the tray lining in the related art.

[0006] The embodiment of the present application provides an automatic changing device for a battery tray, comprising:

[0007] A liner assembly and disassembly mechanism, the liner assembly and disassembly mechanism comprising a pallet positioning slide for positioning the pallet outer frame, the bottom of the pallet positioning slide being provided with a screw assembly and disassembly mechanism for installing and disassembling the pallet liner in the pallet outer frame;

[0008] The liner grabbing mechanism is located above the liner assembly and disassembly mechanism, and includes a clamping claw mechanism for clamping the pallet liner, and a three-axis transport module for driving the clamping claw mechanism to transport the pallet liner to a set workstation.

[0009] In some embodiments: the tray positioning slide comprises a lower bracket, and a guide device for sliding the tray outer frame into or out of the lower bracket is provided on the top of the lower bracket;

[0010] Also, a limit clamping structure for positioning the outer frame of the tray on the lower bracket and a detection sensor for detecting the specific position of the outer frame of the tray on the lower bracket.

[0011] In some embodiments: the guide device includes two guide plates that are parallel to each other and spaced apart and fixed on the top of the lower bracket, and a plurality of driving rollers that are spaced apart and located below the guide plates and connected to the lower bracket.

[0012] In some embodiments: one end of the lower bracket is an inlet and outlet end for sliding in and out of the tray outer frame, the inlet and outlet end of the lower bracket is provided with a door-shaped limit frame, and the limit clamping structure includes a lifting and blocking mechanism for opening or closing the inlet and outlet end and a side push cylinder for clamping the tray outer frame;

[0013] A barcode scanner for identifying the inner lining of the pallet is disposed on one side of the lower bracket away from the inlet and outlet ends, and inverted "L"-shaped height limit frames are disposed on both sides of the lower bracket to limit the position height of the outer frame of the pallet.

[0014] In some embodiments: the screw disassembly and assembly mechanism includes a servo tightening machine for tightening and removing the screw, and a translation mechanism for driving the servo tightening machine to move at the bottom of the tray outer frame. The top of the translation mechanism is connected to a mounting plate, and the servo tightening machine is fixed on the mounting plate.

[0015] In some embodiments: the liner grabbing mechanism also includes an outer frame surrounding the outer periphery of the liner assembly and disassembly mechanism, the three-axis transport module includes Y-axis linear modules fixed on both sides of the outer frame, which are parallel to each other and spaced apart, an X-axis linear module spanning between the two Y-axis linear modules, and a Z-axis linear module connected to the X-axis linear module, and the clamping mechanism is connected to the Z-axis linear module.

[0016] In some embodiments: the clamping mechanism includes a clamping jaw for clamping and releasing the lining of the pallet, a lower mounting seat for mounting the clamping jaw, an upper mounting seat fixed on the three-axis transport module, and a floating mechanism for floatingly supporting the clamping jaw is connected between the upper mounting seat and the lower mounting seat.

[0017] In some embodiments: the floating mechanism includes a linear bearing fixedly connected to the lower mounting seat, a linear guide rod with one end extending into the linear bearing and fixedly connected to the upper mounting seat, and a compression spring is sleeved on the linear guide rod to drive the lower mounting seat away from the upper mounting seat.

[0018] In some embodiments: the liner grabbing mechanism is provided with a pallet liner disassembly and assembly station, a new pallet liner storage station and an old pallet liner storage station, and the liner assembly and disassembly mechanism is provided with multiple ones and respectively located at the pallet liner disassembly and assembly station, the new pallet liner storage station and the old pallet liner storage station.

[0019] In some embodiments: the pallet liner disassembly and assembly station, the new pallet liner storage station and the old pallet liner storage station are arranged in sequence along the width direction of the liner grabbing mechanism, and the three-axis transport module of the liner grabbing mechanism covers the plane area of ​​the pallet liner disassembly and assembly station, the new pallet liner storage station and the old pallet liner storage station.

[0020] The beneficial effects of the technical solution provided by this application include:

[0021] An embodiment of the present application provides an automatic changing device for a battery cell pallet. The automatic changing device for a battery cell pallet of the present application is provided with a lining installation and disassembly mechanism and a lining grasping mechanism that cooperate with each other, wherein the lining installation and disassembly mechanism includes a pallet positioning slide for positioning the pallet outer frame, and a screw disassembly mechanism for installing and disassembling the pallet lining in the pallet outer frame is provided at the bottom of the pallet positioning slide; the lining grasping mechanism is located above the lining installation and disassembly mechanism, and includes a clamping mechanism for clamping the pallet lining, and a three-axis transport module that drives the clamping mechanism to transport the pallet lining to a set workstation.

[0022] Therefore, the automatic replacement device for the battery tray of the present application first uses the screw disassembly mechanism to disassemble the screw of the old tray liner in the tray outer frame on the tray positioning slide, and then uses the three-axis handling module to drive the clamping claw mechanism to clamp the tray liner, and then takes out the old tray liner in the tray outer frame on the tray positioning slide and places it in the set station, and then transports the new tray liner to be installed to the tray outer frame on the positioning slide, and finally uses the screw disassembly mechanism again to install the new tray liner with the tray outer frame through the screw. The present application enables the tray outer frame to be reused, and automatically completes the automatic replacement and assembly of the new and old tray liners in the tray outer frame, thereby improving the assembly efficiency of the tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0025] Figure 2 This is a left side view of the structure of the liner installation and removal mechanism of the embodiment of the present application;

[0026] Figure 3 This is a top view of the structure of the liner installation and removal mechanism of the embodiment of the present application;

[0027] Figure 4 This is a structural stereogram of the liner installation and removal mechanism of the embodiment of the present application;

[0028] Figure 5 This is a structural front view of the liner grabbing mechanism of an embodiment of the present application;

[0029] Figure 6 This is a structural stereogram of the liner grabbing mechanism of an embodiment of the present application;

[0030] Figure 7 This is a schematic diagram of the structure of the clamping mechanism and the Z-axis linear module of the embodiment of the present application;

[0031] Figure 8 This is a schematic diagram of the structure of the battery tray according to an embodiment of the present application.

[0032] Reference numerals:

[0033] 100, lining grabbing mechanism; 110, clamping claw mechanism; 111, clamping claw; 112, upper mounting seat; 113, lower mounting seat; 114, linear bearing; 115, linear guide rod; 116, compression spring; 120, three-axis handling module; 121, Y-axis linear module; 122, X-axis linear module; 123, Z-axis linear module; 130, outer frame;

[0034] 200, lining assembly and disassembly mechanism; 210, lower bracket; 220, guide plate; 230, screw assembly and disassembly mechanism; 231, translation mechanism; 232, mounting plate; 240, driving roller; 250, lifting and lowering blocking mechanism; 260, door-shaped limit frame; 270, barcode scanning gun; 280, side push cylinder; 290, height limit frame;

[0035] 300. Pallet frame; 310. Pallet lining. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] The embodiment of the present application provides an automatic changing device for a battery cell tray, which can solve the problem of time-consuming and labor-intensive manual replacement of the tray lining in the related art.

[0038] See also Figures 1 to 8 As shown, the embodiment of the present application provides an automatic changing device for a battery tray, comprising:

[0039] The liner assembly and disassembly mechanism 200 includes a pallet positioning slide for positioning the pallet outer frame 300. When the pallet outer frame 300 moves to the pallet positioning slide, the pallet liner 310 in the pallet outer frame 300 is replaced. A screw assembly and disassembly mechanism 230 for mounting and disassembling the pallet liner 310 in the pallet outer frame 300 is provided at the bottom of the pallet positioning slide.

[0040] The liner grabbing mechanism 100 is located above the liner assembly and disassembly mechanism 200. The liner grabbing mechanism 100 includes a clamping mechanism 110 for clamping the tray liner 310, and a three-axis transport module 120 for driving the clamping mechanism 110 to transport the tray liner 310 to a set work station.

[0041] The automatic changing device for the battery cell tray of the embodiment of the present application first uses the screw disassembly mechanism 230 to remove the screw of the old tray lining in the tray outer frame 300 positioned on the tray positioning slide, and then uses the three-axis transport module 120 to drive the clamping mechanism 110 to clamp the tray lining 310, and then takes out the old tray lining in the tray outer frame 300 on the tray positioning slide and places it in the set work station.

[0042] Next, the clamp mechanism 110 and the three-axis transport module 120 transport the new pallet liner to be installed to the pallet outer frame 300 on the positioning slide, and finally the screw disassembly mechanism 230 is used again to install the new pallet liner with the pallet outer frame 300 through screws. The present application enables the pallet outer frame 300 to be reused, and automatically completes the replacement and assembly of the new and old pallet liners in the pallet outer frame 300, thereby improving the assembly efficiency of the pallet.

[0043] In some alternative embodiments: See Figures 1 to 4 As shown, an embodiment of the present application provides an automatic changing device for a battery cell tray, wherein the tray positioning slide of the automatic changing device includes a lower bracket 210 , and a guide device for sliding a tray outer frame 300 into or out of the lower bracket 210 is provided on the top of the lower bracket 210 .

[0044] The guide device is used to automatically slide the tray outer frame 300 delivered to the liner assembly and disassembly mechanism 200 into the liner assembly and disassembly mechanism 200, and provide guidance and positioning for the sliding of the tray outer frame 300, so that the tray outer frame 300 entering the liner assembly and disassembly mechanism 200 is pre-positioned. In addition, the position limiting clamping structure for positioning the tray outer frame 300 on the lower bracket 210 and the detection sensor for detecting the specific position of the tray outer frame 300 on the lower bracket 210.

[0045] When the pallet outer frame 300 entering the liner assembly and disassembly mechanism 200 stops, the detection sensor uses a shooting sensor or a micro switch to detect whether the pallet outer frame 300 has reached the preset position. When the pallet outer frame 300 reaches the preset position, the pallet outer frame 300 is clamped and positioned on the lower bracket 210 using a limit clamping structure to prevent the pallet outer frame 300 from shaking when installing or disassembling the pallet liner 310, which would affect the positioning accuracy and disassembly efficiency of the screw disassembly mechanism 230.

[0046] In some alternative embodiments: See Figures 1 to 4As shown, an embodiment of the present application provides an automatic changing device for a battery cell tray, wherein the guide device of the automatic changing device includes two guide plates 220 that are parallel to each other and spaced apart and fixed on the top of a lower bracket 210, and a plurality of driving rollers 240 that are spaced apart in sequence and are located below the guide plates 220 and connected to the lower bracket 210.

[0047] The distance between the two parallel guide plates 220 is slightly larger than the width of the tray outer frame 300, so as to provide accurate positioning guidance for the tray outer frame 300. Two rows of driving rollers 240 are provided, and the two rows of driving rollers 240 are respectively located under the two guide plates 220. The two rows of driving rollers 240 are used to roll and support the two sides of the bottom of the tray outer frame 300. When the driving rollers 240 rotate in a set direction, the tray outer frame 300 slides into or out of the lower bracket 210.

[0048] In some alternative embodiments: See Figures 1 to 4 As shown, the embodiment of the present application provides an automatic changing device for a battery tray, one end of the lower bracket 210 of the automatic changing device is an inlet and outlet end for sliding in and out of the tray outer frame 300. The inlet and outlet ends of the lower bracket 210 are provided with a door-shaped limit frame 260, which together with the inlet and outlet ends of the lower bracket 210 form a "mouth"-shaped structure to limit the over-high tray outer frame 300 from entering the lower bracket 210.

[0049] The position limiting clamping structure specifically includes a lifting and blocking mechanism 250 for opening or closing the inlet and outlet ends and a side push cylinder 280 for clamping the tray outer frame 300. When the tray outer frame 300 enters the lower bracket 210 from the inlet and outlet ends, the lifting and blocking mechanism 250 at the outlet end begins to rise and close the outlet end, and the side push cylinder 280 presses the tray outer frame 300 laterally, thereby preventing the tray outer frame 300 from sliding out of the outlet end when installing or removing the tray liner 310.

[0050] A barcode scanner 270 for identifying the pallet lining 310 is provided on one side of the lower bracket 210 away from the inlet and outlet ends. The barcode scanner 270 scans the pallet lining 310 to be grabbed to determine whether it is the specification of the current pallet lining replacement, and feeds back the relevant coordinate data to the control unit. Inverted "L"-shaped height limit frames 290 are provided on both sides of the lower bracket 210 to limit the position height of the pallet outer frame 300.

[0051] In some alternative embodiments: See Figures 1 to 4 As shown, an embodiment of the present application provides an automatic changing device for a battery cell tray, wherein the screw disassembly and assembly mechanism 230 of the automatic changing device includes a servo tightening machine (not shown in the figure) for tightening and removing the screws, and a translation mechanism 231 for driving the servo tightening machine to move at the bottom of the tray outer frame 300, and a mounting plate 232 is connected to the top of the translation mechanism 231, and the servo tightening machine is fixed on the mounting plate 232.

[0052] The servo tightening machine is provided with two or more groups. The translation mechanism 231 drives two or more groups of servo tightening machines to move to the bolt connection position of the pallet outer frame 300 and the pallet inner liner 310 at the bottom of the pallet outer frame 300 through the mounting plate 232. After the coordinates of the servo tightening machine are positioned, it automatically rises and rotates the screw rod to loosen and tighten, completing the disassembly and installation of the pallet outer frame 300 and the pallet inner liner 310. The disassembled screw rod is located on the servo tightening machine and is continuously used when installing the new pallet inner liner 310 in the next step, without the need for manual nailing.

[0053] In some alternative embodiments: See Figure 1 , Figures 5 to 7 As shown, the embodiment of the present application provides an automatic changing device for a cell tray, wherein the inner liner grasping mechanism 100 of the automatic changing device further comprises an outer frame 130 arranged around the outer periphery of the inner liner assembly and disassembly mechanism 200. The three-axis transport module 120 comprises a Y-axis linear module 121 fixed on both sides of the outer frame 130 and arranged parallel to each other and at intervals, an X-axis linear module 122 spanning between the two Y-axis linear modules 121, and a Z-axis linear module 123 connected to the X-axis linear module 122, and the clamping mechanism 110 is connected to the Z-axis linear module 123.

[0054] The clamp mechanism 110 includes a clamp 111 for clamping and releasing the tray liner 310. The clamp 111 is preferably, but not limited to, a two-finger clamp, which clamps and releases the tray liner 310 by approaching or moving away from each other. It also includes a lower mounting seat 113 for mounting the clamp 111, and an upper mounting seat 112 fixed to the Z-axis linear module 123 of the three-axis transport module 120. A floating mechanism for floatingly supporting the clamp 111 is connected between the upper mounting seat 112 and the lower mounting seat 113.

[0055] The floating mechanism includes four linear bearings 114 fixedly connected to the four corners of the lower mounting seat 113, four linear guide rods 115 with one end extending into the linear bearings 114 and fixedly connected to the upper mounting seat 112, and compression springs 116 are sleeved on the four linear guide rods 115 to drive the lower mounting seat 113 away from the upper mounting seat 112. The lower mounting seat 113 can freely move up and down along the Z-axis direction under the guidance of the linear bearings 114 and the linear guide rods 115.

[0056] When the clamping jaws 111 grasp the tray lining 310 downwards under the driving action of the Z-axis linear module 123, since the four linear guide rods 115 are provided with compression springs 116 that drive the lower mounting seat 113 away from the upper mounting seat 112, the compression springs 116 have a certain elastic floating effect, which prevents the clamping jaws 111 from hard touching the tray lining 310 downwards, thereby avoiding damage to the tray lining 310 due to failure of the clamping jaws 111 to position and clamp.

[0057] In some alternative embodiments: See Figure 1 , Figure 5 and Figure 6 As shown, an embodiment of the present application provides an automatic changing device for a battery cell pallet, wherein a lining grasping mechanism 100 of the automatic changing device is provided with a pallet lining disassembly and assembly station, a new pallet lining storage station and an old pallet lining storage station, and three lining assembly and disassembly mechanisms 200 are provided and are respectively located at the pallet lining disassembly and assembly station, the new pallet lining storage station and the old pallet lining storage station.

[0058] The pallet liner disassembly and assembly station, the new pallet liner storage station and the old pallet liner storage station are arranged in sequence along the width direction of the liner grabbing mechanism 100, and the three-axis transport module 120 of the liner grabbing mechanism 100 covers the planar area of ​​the pallet liner disassembly and assembly station, the new pallet liner storage station and the old pallet liner storage station.

[0059] The positions of the pallet lining disassembly and assembly station, the new pallet lining storage station and the old pallet lining storage station are not fixed. The pallet lining disassembly and assembly station, the new pallet lining storage station and the old pallet lining storage station can be changed at will, which solves the singleness of the equipment and improves the compatibility and practicality of the equipment.

[0060] How it works

[0061] An embodiment of the present application provides an automatic changing device for a battery cell pallet. The automatic changing device for a battery cell pallet of the present application is provided with a lining installation and disassembly mechanism 200 and a lining grasping mechanism 100 that cooperate with each other, wherein the lining installation and disassembly mechanism 200 includes a pallet positioning slide for positioning a pallet outer frame 300, and a screw disassembly mechanism 230 for installing and disassembling a pallet liner 310 in the pallet outer frame 300 is provided at the bottom of the pallet positioning slide; the lining grasping mechanism 100 is located above the lining installation and disassembly mechanism 200, and includes a clamping mechanism 110 for clamping the pallet liner 310, and a three-axis transport module 120 that drives the clamping mechanism 110 to transport the pallet liner 310 to a set workstation.

[0062] Therefore, the automatic replacement device for the battery tray of the present application first uses the screw disassembly mechanism 230 to disassemble the screw of the old tray liner in the tray outer frame 300 on the tray positioning slide, and then uses the three-axis transport module 120 to drive the clamping claw mechanism 110 to clamp the tray liner 310, and then takes out the old tray liner in the tray outer frame 300 on the tray positioning slide and places it in the set station, and transports the new tray liner to be installed to the tray outer frame 300 located on the tray positioning slide, and finally uses the screw disassembly mechanism 230 again to install the new tray liner with the tray outer frame 300 through the screw. The present application enables the tray outer frame to be reused, and automatically completes the automatic replacement and assembly of the new and old tray liners in the tray outer frame, thereby improving the assembly efficiency of the tray.

[0063] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0064] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0065] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An automatic changing device for a battery tray, characterized in that: include: A liner assembly and disassembly mechanism (200), the liner assembly and disassembly mechanism (200) comprising a pallet positioning slide for positioning a pallet outer frame (300), a screw assembly and disassembly mechanism (230) for mounting and disassembling a pallet liner (310) in the pallet outer frame (300) being provided at the bottom of the pallet positioning slide; A liner grabbing mechanism (100), the liner grabbing mechanism (100) is located above the liner assembly and disassembly mechanism (200), and comprises a clamping mechanism (110) for clamping a tray liner (310), and a three-axis transport module (120) for driving the clamping mechanism (110) to transport the tray liner to a set workstation.

2. The automatic changing device for battery trays according to claim 1, characterized in that: The tray positioning slide comprises a lower bracket (210), and a guide device for sliding the tray outer frame (300) into or out of the lower bracket (210) is provided on the top of the lower bracket (210); Also, a position limiting clamping structure for positioning the tray outer frame (300) on the lower bracket (210) and a detection sensor for detecting the specific position of the tray outer frame (300) on the lower bracket (210).

3. The automatic changing device for battery tray according to claim 2, characterized in that: The guide device comprises two guide plates (220) which are parallel to each other and spaced apart and fixed on the top of the lower bracket (210), and a plurality of drive rollers (240) which are spaced apart and located below the guide plates (220) and connected to the lower bracket (210).

4. The automatic changing device for a battery tray according to claim 2, characterized in that: One end of the lower bracket (210) is an inlet and outlet end for sliding in and out of the tray outer frame (300), and a door-shaped limit frame (260) is provided at the inlet and outlet end of the lower bracket. The limit clamping structure comprises a lifting and blocking mechanism (250) for opening or closing the inlet and outlet end and a side push cylinder (280) for clamping the tray outer frame; A barcode scanning gun (270) for identifying the tray lining (310) is provided on one side of the lower bracket (210) away from the inlet and outlet ends, and inverted "L"-shaped height limiting frames (290) are provided on both sides of the lower bracket (210), respectively, and the height limiting frames (290) are used to limit the position height of the tray outer frame (300).

5. The automatic changing device for battery tray according to claim 1, characterized in that: The screw assembly and disassembly mechanism (230) comprises a servo tightening machine for tightening and removing the screw, and a translation mechanism (231) for driving the servo tightening machine to move at the bottom of the tray outer frame (300); a mounting plate (232) is connected to the top of the translation mechanism (231), and the servo tightening machine is fixed on the mounting plate (232).

6. The automatic changing device for battery tray according to claim 1, characterized in that: The liner grabbing mechanism (100) further comprises an outer frame (130) arranged around the outer periphery of the liner assembly and disassembly mechanism (200); the three-axis transport module (120) comprises Y-axis linear modules (121) fixed on both sides of the outer frame (130) and arranged in parallel and at intervals, an X-axis linear module (122) spanning between the two Y-axis linear modules (121), and a Z-axis linear module (123) connected to the X-axis linear module (122); and the clamping mechanism (110) is connected to the Z-axis linear module (123).

7. The automatic changing device for a battery tray according to claim 1 or 6, characterized in that: The clamping mechanism (110) comprises a clamping jaw (111) for clamping and releasing the tray liner (310), a lower mounting seat (113) for mounting the clamping jaw (111), and an upper mounting seat (112) fixed on the three-axis transport module (120); a floating mechanism for floatingly supporting the clamping jaw (111) is connected between the upper mounting seat (112) and the lower mounting seat (113).

8. The automatic changing device for battery trays according to claim 7, characterized in that: The floating mechanism comprises a linear bearing (114) fixedly connected to the lower mounting seat (113), a linear guide rod (115) one end of which extends into the linear bearing (114) and is fixedly connected to the upper mounting seat (112), and a compression spring (116) is sleeved on the linear guide rod (115) for driving the lower mounting seat (113) away from the upper mounting seat (112).

9. The automatic changing device for battery trays according to claim 1, characterized in that: The liner grabbing mechanism (100) is provided with a pallet liner disassembly and assembly station, a new pallet liner storage station and an old pallet liner storage station, and the liner assembly and disassembly mechanism (200) is provided with a plurality of liner assembly and disassembly mechanisms (200) which are respectively located at the pallet liner disassembly and assembly station, the new pallet liner storage station and the old pallet liner storage station.

10. The automatic changing device for battery trays according to claim 9, characterized in that: The pallet liner disassembly and assembly station, the new pallet liner storage station and the old pallet liner storage station are arranged in sequence and at intervals along the width direction of the liner grabbing mechanism (100), and the three-axis transport module (120) of the liner grabbing mechanism (100) covers the plane area of ​​the pallet liner disassembly and assembly station, the new pallet liner storage station and the old pallet liner storage station.

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