Pre-pressing device for battery cell module

Abstract

The utility model relates to the technical field of new energy battery production and manufacturing, in particular to a pre-pressing device for a battery cell module. The pre-pressing device comprises a machine tool, a first pre-pressing mechanism and a second pre-pressing mechanism, the first pre-pressing mechanism is arranged on the machine tool, the first pre-pressing mechanism comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are oppositely arranged in the first direction, at least one of the first clamping plate and the second clamping plate can move relatively, and the first clamping plate and the second clamping plate can move relatively. A plurality of battery cells in the battery cell module are clamped in the first direction, and the first direction is parallel to the stacking direction of the battery cells in the battery cell module; the second pre-pressing mechanism is arranged on the machine tool, the second pre-pressing mechanism comprises a third clamping plate and a fourth clamping plate, the third clamping plate and the fourth clamping plate are oppositely arranged in the second direction, and at least one of the third clamping plate and the fourth clamping plate can relatively move so as to clamp a plurality of battery cell modules in the second direction; the first direction, the second direction and the vertical direction are perpendicular to each other.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy battery production and manufacturing, and particularly relates to a pre-pressing device for a battery cell module. BACKGROUND

[0002] In the automatic process of multi-section batteries, most of the pre-pressing and forming of multiple battery cells is achieved through manual pre-pressing and single-column module pre-pressing and forming. However, the above pre-pressing and forming methods have the problems of difficult pre-pressing positioning, low product quality and low production efficiency. CONTENT OF THE UTILITY MODEL

[0003] The pre-pressing device for a battery cell module provided by the present application solves the technical problem of difficult pre-pressing positioning and achieves the technical effect of facilitating pre-pressing positioning of the battery cell module.

[0004] In order to achieve the above purpose, the main technical scheme adopted by the present application comprises:

[0005] The pre-pressing device for a battery cell module provided by the present application comprises a machine tool, a first pre-pressing mechanism and a second pre-pressing mechanism. The first pre-pressing mechanism comprises a first clamping plate and a second clamping plate. Along the first direction, the first clamping plate and the second clamping plate are oppositely arranged. At least one of the first clamping plate and the second clamping plate is movable relative to the machine tool to clamp multiple battery cells in the battery cell module along the first direction. The first direction is parallel to the stacking direction of the multiple battery cells in the battery cell module. The second pre-pressing mechanism comprises a third clamping plate and a fourth clamping plate. Along the second direction, the third clamping plate and the fourth clamping plate are oppositely arranged. At least one of the third clamping plate and the fourth clamping plate is oppositely movable to clamp multiple battery cell modules along the second direction. The first direction, the second direction and the vertical direction are perpendicular to each other.

[0006] The pre-pressing device for a battery cell module provided by the present application pre-presses and positions multiple battery cells in the first direction through the first clamping plate and the second clamping plate, thereby achieving the purpose of automatic positioning of multiple battery cells in the first direction. The pre-pressing device pre-presses and positions multiple battery cell modules in the second direction through the fourth clamping plate and the third clamping plate, thereby achieving the purpose of automatic positioning of multiple battery cell modules in the second direction. The above positioning method is simple and convenient, time-consuming and improves the production efficiency.

[0007] Optionally, along the first direction, the machine tool has a first region and a second region, the second pre-pressing mechanism is arranged in the second region; the first pre-pressing mechanism further comprises a first moving base, the first clamping plate and the second clamping plate are arranged on the first moving base, at least one of the first clamping plate and the second clamping plate is movable relative to the first moving base along the first direction, and the first moving base is movably arranged on the machine tool, so that the first moving base is selectively located in the first region or the second region.

[0008] In the above scheme, the first region and the second region are spaced apart, and the first moving base is selectively located in the first region or the second region for corresponding work, thereby reducing the interference between various processes and structures.

[0009] Optionally, the first clamping plate is fixed to the first moving base, the first pre-pressing mechanism further comprises a first driving member, the first driving member is fixed to the first moving base, and a driving end of the first driving member is connected with the second clamping plate to drive the second clamping plate to move relative to the first moving base along the first direction.

[0010] In the above scheme, the first driving member can drive the second clamping plate to move along the first direction towards the first moving base, so as to realize the pre-pressing of the plurality of battery cells in the first direction.

[0011] Optionally, the first pre-pressing mechanism further comprises a bearing plate, the bearing plate is adapted to bear the battery cell module, the bearing plate is movably arranged on the first moving base along the first direction, and the first clamping plate and the second clamping plate are arranged on opposite sides of the bearing plate along the first direction; the first pre-pressing mechanism further comprises a second driving member, the second driving member is fixed to the bearing plate, and a driving end of the second driving member is connected with the first clamping plate to move the bearing plate away from or close to the first clamping plate.

[0012] In the above embodiment, the bearing plate is movably arranged on the first moving base, the second driving member drives the first moving base to move away from the first clamping plate, so that the first clamping plate is spaced apart from the bearing plate, and the interference of the first clamping plate with the mechanical hand is reduced when the mechanical hand takes the battery cell and places it on the bearing plate.

[0013] Optionally, the bearing plate is further provided with a plurality of positioning portions for positioning the steel belt, and the plurality of positioning portions are arranged on the circumferential side surface of the bearing plate.

[0014] In the above scheme, the positioning steel belt is placed in the positioning portion, the positioning steel belt can be directly moved upward from the lower side of the battery cell module and sleeved on the battery cell module, thereby reducing the damage of the battery cell module caused by the long-distance movement of the positioning steel belt on the battery cell module.

[0015] Optionally, the first clamping plate is provided with a first clamping block and a second clamping block, the first clamping block and the second clamping block are oppositely and spacedly arranged along the second direction, at least one of the first clamping block and the second clamping block is movably arranged on the first clamping plate to selectively clamp the battery end plate; the second clamping plate is provided with a third clamping block and a fourth clamping block, the third clamping block and the fourth clamping block are oppositely and spacedly arranged along the second direction, at least one of the third clamping block and the fourth clamping block is movably arranged on the second clamping plate to selectively clamp the battery end plate.

[0016] In the above scheme, at least one of the first clamping block and the second clamping block on the first clamping plate can move along the second direction to adjust the distance between the first clamping block and the second clamping block, so as to more easily clamp the battery end plate and more stably clamp the battery end plate.

[0017] At least one of the third clamping block and the fourth clamping block on the second clamping plate can move along the second direction to adjust the distance between the third clamping block and the fourth clamping block, so as to more easily clamp the battery end plate and more stably clamp the battery end plate.

[0018] Optionally, the first clamping block is fixed to the first clamping plate, and the third clamping block is fixed to the second clamping plate; the first pre-pressing mechanism further comprises a third driving member and a fourth driving member, the third driving member is arranged on the first clamping plate, a driving end of the third driving member is connected with the second clamping block, and the fourth driving member is arranged on the second clamping plate, a driving end of the fourth driving member is connected with the fourth clamping block.

[0019] In the above scheme, when the third driving member drives the second clamping block to move away from the first clamping block, the battery end plate can be placed between the first clamping block and the second clamping block, and then the third driving member drives the second clamping block to move towards the first clamping block to clamp the battery end plate.

[0020] When the fourth driving member drives the fourth clamping block to move away from the third clamping block, the battery end plate can be placed between the third clamping block and the fourth clamping block, and then the fourth driving member drives the fourth clamping block to move towards the third clamping block to clamp the battery end plate.

[0021] Optionally, the machine tool has a center line along the first direction, and has a first end and a second end along the second direction, the center line of the machine tool is equidistant from the first end and the second end, and the fourth clamping plate is closer to the center line of the machine tool than the third clamping plate; the second pre-pressing mechanism further comprises a second moving base, the third clamping plate is movably arranged on the second moving base along the second direction, and the second moving base is movably arranged on the machine tool along the first direction.

[0022] In the above scheme, the fourth clamping plate is close to the center area of the machine tool, reducing the interference of the fourth clamping plate on manual operation in the second area. When the third clamping plate is not needed to be used to pre-press the battery cell module, the second moving base can be moved to other areas along the first direction to facilitate manual operation in the second area, thereby reducing the interference of the third clamping plate on manual operation.

[0023] Optionally, the second pre-pressing mechanism further comprises a fifth driving member and a sixth driving member, the fifth driving member is arranged on the machine tool, a driving end of the fifth driving member is connected with the fourth clamping plate to move the fourth clamping plate close to or away from the third clamping plate, and the sixth driving member is fixed on the second moving base, a driving end of the sixth driving member is connected with the third clamping plate to move the third clamping plate close to or away from the fourth clamping plate.

[0024] In the above scheme, the fifth driving member drives the fourth clamping plate to move towards the third clamping plate, and the sixth driving member drives the third clamping member to move towards the fourth clamping plate to clamp the plurality of battery cell modules in the second direction.

[0025] Optionally, the second pre-pressing mechanism further comprises a first guide part and a second guide part, the first guide part is configured as a guide column and extends along the second direction, the second guide part is provided with a guide hole matched with the guide column, the first guide part is fixed on the fourth clamping plate, and the second guide part is fixed on the machine tool.

[0026] In the above scheme, the fifth driving member drives the fourth clamping plate to move, and the first guide part moves in the guide hole along with the fourth clamping plate. The guide hole plays a guiding role on the guide column, and the guide column guides the movement of the fourth clamping plate, reducing the deflection of the fourth clamping plate. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0028] Figure 1 The structure schematic diagram of the pre-pressing device of the present application, wherein the first pre-pressing mechanism is located in the first area;

[0029] Figure 2 The structure schematic diagram of the pre-pressing device of the present application, wherein the first pre-pressing mechanism is located in the second area;

[0030] Figure 3 The structure schematic diagram of the pre-pressing device of the present application;

[0031] Figure 4 The structure schematic diagram of the first pre-pressing mechanism of the present application at the first clamping plate;

[0032] Figure 5 The structure schematic diagram of the first pre-pressing mechanism of the present application at the second clamping plate.

[0033]

Explanation of the drawings

[0034] 100: machine tool; 101: first area; 102: second area; 103: first end; 104: second end;

[0035] 200: first pre-pressing mechanism; 201: first clamping plate; 202: second clamping plate; 203: first moving seat; 204: first driving piece; 205: bearing plate; 206: second driving piece; 207: first clamping block; 208: second clamping block; 209: third clamping block; 210: fourth clamping block; 211: third driving piece; 212: fourth driving piece;

[0036] 300: second pre-pressing mechanism; 301: third clamping plate; 302: fourth clamping plate; 303: second moving seat; 304: fifth driving piece; 305: sixth driving piece; 306: first guide part; 307: second guide part;

[0037] 400: battery cell module; 401: battery cell; 402: battery end plate;

[0038] 500: positioning part; 501: positioning steel belt;

[0039] A: first direction; B: second direction; C: vertical direction. DETAILED DESCRIPTION

[0040] So that the purposes, technical solutions and advantages of the embodiments of the present application are more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing specific embodiments of the present application and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, rather than to describe a particular order or primary and secondary relationship.

[0042] In the present application, the term "embodiment" means that the specific features, structures or properties described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0043] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent the existence of A alone, the existence of A and B together, and the existence of B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0045] In the present application, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more groups (including two groups), and "multiple pieces" means two or more pieces (including two pieces).

[0046] In the multi-section battery automation process, the cell pre-press forming is mostly manually pre-pressed and single-column module pre-press forming, but the above pre-press forming method has the problems of pre-press positioning difficulty, low product quality and production efficiency. In the design of the new machine, the end plate positioning, quick steel band fitting, pre-press forming binding efficiency and safety protection need to be considered. Under the above background, a new type of cell module pre-press mechanism needs to be designed. The scheme pre-buries the steel band in advance, splices multiple single-column modules into multi-column modules, and then directly fits the steel band binding after pre-press forming of the multi-column modules, to achieve the effect of multi-section cell pre-press forming. The above process can reduce the time consumption and the operation is safer. And the pre-press mechanism is introduced into the new machine for use, which can improve the production efficiency of the machine, improve the quality of the pre-press formed cell module, and reduce the safety risk.

[0047] Reference Figures 1 to 3 The embodiment of the application provides a pre-press device for a cell module, the cell module 400 comprises a plurality of cells 401, the pre-press device comprises a first direction A and a second direction B, and the pre-press device comprises a machine tool 100, a first pre-press mechanism 200 and a second pre-press mechanism 300.

[0048] The first pre-press mechanism 200 is arranged on the machine tool 100, and the first pre-press mechanism 200 comprises a first clamping plate 201 and a second clamping plate 202. Along the first direction A, the first clamping plate 201 and the second clamping plate 202 are oppositely arranged, and at least one of the first clamping plate 201 and the second clamping plate 202 is movable relative to the machine tool 100 to clamp the plurality of cells 401 in the cell module 400 along the first direction A. The first direction A is parallel to the stacking direction of the plurality of cells 401 in the cell module 400.

[0049] The second pre-press mechanism 300 is arranged on the machine tool 100, and the second pre-press mechanism 300 comprises a third clamping plate 301 and a fourth clamping plate 302. Along the second direction B, the third clamping plate 301 and the fourth clamping plate 302 are oppositely arranged, and at least one of the third clamping plate 301 and the fourth clamping plate 302 is movable relative to the machine tool 100 to clamp the plurality of cells 401 in the cell module 400 along the second direction B. The first direction A, the second direction B and the vertical direction C are perpendicular to each other.

[0050] The pre-pressing device for the battery cell module 400 is used for stacking and placing the plurality of battery cells 401 of the battery cell module 400 along the first direction A on the machine tool 100, placing the plurality of battery cell modules 400 along the second direction B on the machine tool 100, moving the first clamping plate 201 or the second clamping plate 202 or simultaneously moving the first clamping plate 201 and the second clamping plate 202 along the first direction A to clamp the plurality of battery cells 401 along the first direction A, and moving the third clamping plate 301 or the fourth clamping plate 302 or simultaneously moving the third clamping plate 301 and the fourth clamping plate 302 along the second direction B to clamp the plurality of battery cell modules 400 along the second direction B.

[0051] It should be understood that at least one of the first clamping plate 201 and the second clamping plate 202 is relatively movable in the present application, either one of the first clamping plate 201 and the second clamping plate 202 can be relatively movable, or both can be relatively movable.

[0052] The first clamping plate 201 and the second clamping plate 202 are used for pre-pressing and positioning the plurality of battery cells 401 along the first direction A, so as to achieve the purpose of automatic positioning of the plurality of battery cells 401; the fourth clamping plate 302 and the third clamping plate 301 are used for pre-pressing and positioning the plurality of battery cell modules 400 along the second direction B, so as to achieve the purpose of automatic positioning of the plurality of battery cell modules 400 along the second direction B. The above positioning mode is simple and convenient, and the time consumption is less, so as to improve the production efficiency.

[0053] Optionally, along the first direction A, the machine tool 100 has a first area 101 and a second area 102, and the second pre-pressing mechanism 300 is arranged in the second area 102; the first pre-pressing mechanism 200 further includes a first moving seat 203, and the first clamping plate 201 and the second clamping plate 202 are arranged in the first moving seat 203. At least one of the first clamping plate 201 and the second clamping plate 202 is relatively movable with respect to the first moving seat 203 along the first direction A, and the first moving seat 203 is movably arranged in the machine tool 100, so that the first moving seat 203 can be selectively located in the first area 101 or the second area 102.

[0054] The first area 101 and the second area 102 are spaced apart, and the first moving seat 203 can be selectively located in the first area 101 or the second area 102 to perform corresponding work, so as to reduce the interference between various processes and structures.

[0055] The first clamping plate 201 and the second clamping plate 202 are arranged on the first moving seat 203, and one of the first clamping plate 201 and the second clamping plate 202 is movable relative to the first moving seat 203, or both the first clamping plate 201 and the second clamping plate 202 are movable relative to the first moving seat 203. One of the first clamping plate 201 and the second clamping plate 202 is movable relative to the first moving seat 203, or both the first clamping plate 201 and the second clamping plate 202 are movable relative to the first moving seat 203, so that the first clamping plate 201 and the second clamping plate 202 are adjusted, so as to adjust the distance between the first clamping plate 201 and the second clamping plate 202, so as to have enough space on the first moving seat 203 to place the battery cell module.

[0056] Specifically, the first area 101 can be a material placement area, and the second area 102 can be a pre-pressing area. The first moving seat 203 moves to the first area 101, adjusts the distance between the first clamping plate 201 and the second clamping plate 202, places a plurality of battery cells 401 on the first moving seat 203 through the mechanical arm, and then moves the first moving seat 203 to the second area 102 for pre-pressing. The material placement area and the pre-pressing area are separated, so that the working activity area of the mechanical arm is sufficient during the material taking process, and the interference of other structures on the mechanical arm is reduced.

[0057] In one specific embodiment, the machine tool 100 is provided with a first sliding rail, and the first moving seat 203 is slidingly connected to the first sliding rail. The first moving seat 203 is provided with a motor 600, the driving end of the motor 600 is connected with a gear, the base is provided with a rack 601 extending along the first direction A, the gear is engaged with the rack 601, and the motor 600 drives the first moving seat 203 to move along the first direction A on the first sliding rail.

[0058] Optionally, the first clamping plate 201 is fixed to the first moving seat 203, and the first pre-pressing mechanism 200 further comprises a first driving member 204 fixed to the first moving seat 203, and the driving end of the first driving member 204 is connected with the second clamping plate 202 to drive the second clamping plate 202 to be movable relative to the first moving seat 203 along the first direction A.

[0059] The first driving member 204 can drive the second clamping plate 202 to move along the first direction A towards the first clamping plate 201, so as to realize pre-pressing of the plurality of battery cells 401 in the first direction A.

[0060] Specifically, the first driving member 204 can be an electric cylinder linear drive, the driving end of the electric cylinder drives the second clamping plate 202 to move, and the second clamping plate 202 moves on the first moving seat 203 along the first direction A towards the first clamping plate 201, so as to pre-press the plurality of battery cells 401.

[0061] It should be understood that the first driving member 204 can also be a motor driving a ball screw to achieve linear driving of the second clamping plate 202 to move on the first moving seat 203 in the first direction A.

[0062] In one specific embodiment, the first moving seat 203 is provided with a second sliding rail, and the second clamping plate 202 is slidingly connected to the second sliding rail. The first driving member 204 drives the second clamping plate 202 to move along the second sliding rail towards the first clamping plate 201 to clamp the battery cell module 400.

[0063] Optionally, the first pre-pressing mechanism 200 further includes a bearing plate 205 adapted to bear the battery cell module 400. The bearing plate 205 is movably arranged on the first moving seat 203 in the first direction A. The first clamping plate 201 and the second clamping plate 202 are arranged on opposite sides of the bearing plate 205 in the first direction A. The first pre-pressing mechanism 200 further includes a second driving member 206 fixed to the bearing plate 205. The driving end of the second driving member 206 is connected to the first clamping plate 201 to move the bearing plate 205 close to or away from the first clamping plate 201.

[0064] In the first direction A, a plurality of battery cells 401 can be placed on the bearing plate 205. In the second direction B, a plurality of battery cell modules 400 can be placed on the bearing plate 205 to realize pre-pressing of the plurality of battery cell modules 400.

[0065] The bearing plate 205 is movably arranged on the first moving seat 203, and in the first direction A, the bearing plate 205 is located between the first clamping plate 201 and the second clamping plate 202. The second driving member 206 drives the bearing plate 205 to move in a direction away from the first clamping plate 201, so that the first clamping plate 201 is spaced apart from the bearing plate 205. When the robot arm places the battery cell 401 on the bearing plate 205, the interference of the first clamping plate 201 with the robot arm is reduced. When pre-pressing is required for a plurality of battery cells 401, the second driving member 206 drives the bearing plate 205 to move in a direction close to the first clamping plate 201. Then the first driving member 204 drives the first clamping plate 201 to move towards the second clamping plate 202 to pre-press the plurality of battery cells 401 in the first direction A.

[0066] It should be understood that when the robot arm places the battery cell 401 on the bearing plate 205, the bearing plate 205 can be moved by the second driving member 206 to be spaced apart from the first clamping plate 201. The second clamping plate 202 can also be moved by the first driving member 204 in a direction away from the bearing plate 205 to be spaced apart from the bearing plate 205, so as to reduce the interference of the first clamping plate 201 and the second clamping plate 202 with the robot arm.

[0067] The second driving member 206 can be a cylinder, and the first moving seat 203 is provided with a third sliding rail, and the bearing plate 205 is slidingly connected to the third sliding rail, and the cylinder drives the bearing plate 205 to move along the third sliding rail towards or away from the first clamping plate 201.

[0068] Optionally, the bearing plate 205 is further provided with a plurality of positioning portions 500 for positioning the steel belt 501, and the plurality of positioning portions 500 are arranged at intervals on the circumferential side of the bearing plate 205.

[0069] Specifically, the circumferential side of the bearing plate 205 is provided with a plurality of positioning portions 500, and the plurality of positioning portions 500 protrude from the circumferential side of the bearing plate 205. The steel belt 501 is placed in the positioning portion 500, and after the pre-pressing and positioning of the battery cell module 400 are completed, the steel belt 501 is sleeved on the battery cell module 400.

[0070] The steel belt 501 is placed in the positioning portion 500, and the steel belt 501 can be directly moved from the lower direction of the battery cell module 400 to the upper direction, sleeved on the battery cell module 400, reducing the damage of the steel belt 501 to the battery cell module 400 during long-distance movement on the battery cell module 400.

[0071] Optionally, referring to Figure 4 and Figure 5 , the first clamping plate 201 is provided with a first clamping block 207 and a second clamping block 208, and the first clamping block 207 and the second clamping block 208 are arranged opposite and at intervals along the second direction B. At least one of the first clamping block 207 and the second clamping block 208 is movably arranged on the first clamping plate 201 to selectively clamp the battery end plate 402; the second clamping plate 202 is provided with a third clamping block 209 and a fourth clamping block 210, and the third clamping block 209 and the fourth clamping block 210 are arranged opposite and at intervals along the second direction B. At least one of the third clamping block 209 and the fourth clamping block 210 is movably arranged on the second clamping plate 202 to selectively clamp the battery end plate 402.

[0072] At least one of the first clamping block 207 and the second clamping block 208 movably arranged on the first clamping plate 201 can be any one of the first clamping block 207 and the second clamping block 208 movably arranged on the first clamping plate 201, or both can be movably arranged on the first clamping plate 201. At least one of the first clamping block 207 and the second clamping block 208 on the first clamping plate 201 can move along the second direction B to adjust the distance between the first clamping block 207 and the second clamping block 208, so as to more easily clamp the battery end plate 402 and more stably clamp the battery end plate 402.

[0073] At least one of the third clamping block 209 and the fourth clamping block 210 is movably arranged on the second clamping plate 202. Either one of the third clamping block 209 and the fourth clamping block 210 can be movably arranged on the second clamping plate 202, or both of them can be movably arranged on the second clamping plate 202. At least one of the third clamping block 209 and the fourth clamping block 210 on the second clamping plate 202 can move along the second direction B to adjust the distance between the third clamping block 209 and the fourth clamping block 210, so as to more easily clamp the battery end plate 402 and more stably clamp the battery end plate 402.

[0074] Optionally, with reference to Figure 4 and Figure 5 The first clamping block 207 is fixed to the first clamping plate 201, and the third clamping block 209 is fixed to the second clamping plate 202; the first pre-pressing mechanism 200 further comprises a third driving member 211 and a fourth driving member 212. The third driving member 211 is arranged on the first clamping plate 201, and the driving end of the third driving member 211 is connected with the second clamping block 208. The fourth driving member 212 is arranged on the second clamping plate 202, and the driving end of the fourth driving member 212 is connected with the fourth clamping block 210.

[0075] The third driving member 211 can drive the second clamping block 208 to move along the second direction B towards or away from the first clamping block 207. When the third driving member 211 drives the second clamping block 208 to move away from the first clamping block 207, the distance between the first clamping block 207 and the second clamping block 208 increases, and the battery end plate 402 can be placed between the first clamping block 207 and the second clamping block 208. Then the third driving member 211 drives the second clamping block 208 to move towards the first clamping block 207 to clamp the battery end plate 402.

[0076] The fourth driving member 212 can drive the fourth clamping block 210 to move along the second direction B towards or away from the third clamping block 209. When the fourth driving member 212 drives the fourth clamping block 210 to move away from the third clamping block 209, the distance between the third clamping block 209 and the fourth clamping block 210 increases, and the battery end plate 402 can be placed between the third clamping block 209 and the fourth clamping block 210. Then the fourth driving member 212 drives the fourth clamping block 210 to move towards the third clamping block 209 to clamp the battery end plate 402.

[0077] Specifically, the third driving member 211 and the fourth driving member 212 can be air cylinders.

[0078] Optionally, along the first direction A, the machine tool 100 has a center line, along the second direction B, the machine tool 100 has a first end 103 and a second end 104, the center line of the machine tool 100 is equidistant from the first end 103 and the second end 104, and the fourth clamping plate 302 is closer to the center line of the machine tool 100 than the third clamping plate 301; the second pre-pressing mechanism 300 further comprises a second moving seat 303, and the third clamping plate 301 is movably arranged on the second moving seat 303 along the second direction B, and the second moving seat 303 is movably arranged on the machine tool 100 along the first direction A.

[0079] Along the second direction B, the fourth clamping plate 302 is close to the line of the machine tool 100, reducing the interference of the fourth clamping plate 302 with manual operation in the second area 102. The third clamping plate 301 is close to the edge area of the machine tool 100, the third clamping plate 301 is arranged on the second moving seat 303, and the second moving seat 303 can move along the first direction A. When the third clamping plate 301 is not needed to be used to pre-press the battery cell module 400, the second moving seat 303 can be moved to other areas along the first direction A to facilitate manual operation in the second area 102, thereby reducing the interference of the third clamping plate 301 with manual operation.

[0080] In one specific embodiment, the second moving seat 303 is provided with a fourth sliding rail, and the third clamping plate 301 is slidingly arranged on the fourth sliding rail, so that the third clamping plate 301 can move along the fourth sliding rail towards the fourth clamping plate 302 to clamp the plurality of battery cell modules 400 in the second direction B.

[0081] Optionally, the second pre-pressing mechanism 300 further comprises a fifth driving member 304 and a sixth driving member 305, the fifth driving member 304 is arranged on the machine tool 100, and the driving end of the fifth driving member 304 is connected with the fourth clamping plate 302 to move the fourth clamping plate 302 close to or away from the third clamping plate 301; the sixth driving member 305 is fixed on the second moving seat 303, and the driving end of the sixth driving member 305 is connected with the third clamping plate 301 to move the third clamping plate 301 close to or away from the fourth clamping plate 302.

[0082] The fifth driving member 304 drives the fourth clamping plate 302 to move towards the third clamping plate 301, and the sixth driving member 305 drives the third clamping plate 301 to move towards the fourth clamping plate 302 to clamp the plurality of battery cell modules 400 in the second direction B.

[0083] In one specific embodiment, the fifth driving member 304 is a cylinder, and the driving end of the cylinder is connected with the fourth clamping plate 302. The sixth driving member 305 is a manual driving. Specifically, the sixth driving member 305 is a clamp, which comprises a connecting seat, a handle and a connecting rod. The connecting seat is fixed to the second moving seat 303. The handle is connected with a linkage, which is rotatable relative to the connecting seat. One end of the connecting rod is connected with the linkage, and the other end is connected with the third clamping plate 301. By rotating the handle, the handle drives the linkage, and the linkage drives the connecting rod to move, so as to make the third clamping plate 301 close to or away from the fourth clamping plate 302.

[0084] Optionally, the second pre-pressing mechanism 300 further comprises a first guide part 306 and a second guide part 307. The first guide part 306 is configured as a guide column and extends along the second direction B. The second guide part 307 is provided with a guide hole matched with the guide column. The first guide part 306 is fixed to the fourth clamping plate 302, and the second guide part 307 is fixed to the machine tool 100.

[0085] The fifth driving member 304 drives the fourth clamping plate 302 to move, and the first guide part 306 moves in the guide hole along with the fourth clamping plate 302. The guide hole plays a guiding role for the guide column, and the guide column guides the movement of the fourth clamping plate 302, so as to reduce the deflection of the fourth clamping plate 302.

[0086] Specifically, in the present application, by moving the first moving seat 203 to the second area 102 and moving the second moving seat 303 to a position away from the second area 102, the interference of the second moving seat 303 and the third clamping plate 301 to the manual operation is reduced. By manually placing the positioning steel belt 501 on the positioning part 500, clamping the battery end plate 402 on the first clamping plate 201 through the first clamping block 207 and the second clamping block 208, and clamping the battery end plate 402 on the second clamping plate 202 through the third clamping block 209 and the fourth clamping block 210.

[0087] The motor 600 drives the gear to rotate, the gear is engaged with the rack 601 to drive the first moving seat 203 to move along the first direction A to the first area 101. The first driving member 204 is used to adjust the distance between the first clamping plate 201 and the bearing plate 205, and the second driving member 206 is used to adjust the distance between the second clamping plate 202 and the bearing plate 205, so as to reduce the interference of the first clamping plate 201 and the second clamping plate 202 to the mechanical hand placing the battery cell 401. The mechanical hand places one column of single-row battery cell modules 400 on the bearing plate 205 in turn, and places two groups of battery cell modules 400 on the bearing plate 205.

[0088] The second driving member 206 drives the bearing plate 205 to move towards the first clamping plate 201 to abut the battery end plate 402 and the battery cell module 400 in the first direction A. The first driving member 204 drives the second clamping plate 202 to move towards the battery cell module 400 to clamp the battery cell module 400 in the first direction A. So that the battery end plate 402 is pasted on the battery cell module 400.

[0089] Then, the motor 600 drives the gear to rotate, the gear engages with the rack 601 to drive the first moving seat 203 to move to the second area 102 along the first direction A, and the second moving seat 303 moves to the second area 102. The sixth driving member 305 is manually driven to drive the third clamping plate 301 to clamp the battery cell module 400 along the second direction B, and the fifth driving member 304 drives the fourth clamping plate 302 to clamp the battery cell module 400 along the second direction B. The third clamping plate 301 and the fourth clamping plate 302 clamp the battery cell module 400 in the second direction B.

[0090] The fifth driving member 304 drives the fourth clamping plate 302 to retract, and the sixth driving member 305 drives the third clamping plate 301 to retract. Then manually put the positioning steel belt 501 on the battery cell module 400, and put another positioning steel belt 501 from the top of the battery cell module 400. The first driving member 204 drives the second clamping plate 202 to retract.

[0091] The motor 600 drives the first moving seat 203 to move to the first area 101 along the first direction A, and the mechanical hand moves the plurality of battery cell modules 400 which are pre-shaped to the next work station.

[0092] The machine tool 300 of the present application can be provided with a plurality of groups of first pre-pressing mechanisms and second pre-pressing mechanisms to work simultaneously and improve work efficiency.

[0093] It should be further noted that the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0094] Each of the embodiments in the specification is described in a progressive manner, and the same and similar parts between each of the embodiments can be referred to each other. Each of the embodiments focuses on the difference from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the part of the method embodiment.

[0095] The above merely provides an example of the present application, but is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

[0096] Although the embodiments of the present application are described in conjunction with the accompanying drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes shall fall within the scope of the appended claims.

Claims

1. A pre-loading device for a battery cell module, the battery cell module (400) comprising a plurality of battery cells (401), characterized in that, The preloading device includes a first direction (A) and a second direction (B), and the preloading device includes: Machine tool (100); A first pre-pressing mechanism (200) is disposed on the machine tool (100). The first pre-pressing mechanism (200) includes a first clamping plate (201) and a second clamping plate (202). Along the first direction (A), the first clamping plate (201) and the second clamping plate (202) are disposed opposite to each other. At least one of the first clamping plate (201) and the second clamping plate (202) is movable relative to the machine tool (100) to clamp a plurality of the battery cells (401) in the battery cell module (400) along the first direction (A). The first direction (A) is parallel to the stacking direction of the plurality of battery cells (401) in the battery cell module (400). A second pre-compression mechanism (300) is disposed on the machine tool (100). The second pre-compression mechanism (300) includes a third clamping plate (301) and a fourth clamping plate (302). Along the second direction (B), the third clamping plate (301) and the fourth clamping plate (302) are disposed opposite to each other. At least one of the third clamping plate (301) and the fourth clamping plate (302) is relatively movable to clamp a plurality of the battery cell modules (400) along the second direction (B). The first direction (A), the second direction (B) and the vertical direction (C) are perpendicular to each other.

2. The pre-compression device according to claim 1, characterized in that, Along the first direction (A), the machine tool (100) has a first region (101) and a second region (102), and the second preload mechanism (300) is disposed in the second region (102); The first pre-compression mechanism (200) further includes a first movable seat (203), wherein the first clamping plate (201) and the second clamping plate (202) are both disposed on the first movable seat (203). Along the first direction (A), at least one of the first clamping plate (201) and the second clamping plate (202) is movable relative to the first movable seat (203). The first movable seat (203) is movably disposed on the machine tool (100) so that the first movable seat (203) can be selectively located in the first region (101) or the second region (102).

3. The pre-compression device according to claim 2, characterized in that, The first clamping plate (201) is fixed to the first movable seat (203). The first pre-pressing mechanism (200) further includes a first driving member (204). The first driving member (204) is fixed to the first movable seat (203). The driving end of the first driving member (204) is connected to the second clamping plate (202) to drive the second clamping plate (202) to move relative to the first movable seat (203) along the first direction (A).

4. The pre-compression device according to claim 3, characterized in that, The first pre-compression mechanism (200) further includes a support plate (205) and a second driving member (206). The support plate (205) is adapted to support the battery cell module (400). Along the first direction (A), the support plate (205) is movably disposed on the first moving seat (203). Along the first direction (A), the first clamping plate (201) and the second clamping plate (202) are disposed on opposite sides of the support plate (205). The second driving member (206) is fixed to the support plate (205), and the driving end of the second driving member (206) is connected to the first clamping plate (201) so that the support plate (205) moves closer to or away from the first clamping plate (201).

5. The pre-compression device according to claim 4, characterized in that, The support plate (205) is also provided with a plurality of positioning parts (500) for positioning the steel strip (501), and the plurality of positioning parts (500) are spaced apart on the circumferential side of the support plate (205).

6. The pre-compression device according to claim 1, characterized in that, The first clamping plate (201) is provided with a first clamping block (207) and a second clamping block (208). Along the second direction (B), the first clamping block (207) and the second clamping block (208) are arranged opposite to each other and spaced apart. At least one of the first clamping block (207) and the second clamping block (208) is movably disposed on the first clamping plate (201) to selectively clamp the battery end plate (402). The second clamping plate (202) is provided with a third clamping block (209) and a fourth clamping block (210). Along the second direction (B), the third clamping block (209) and the fourth clamping block (210) are arranged opposite to each other and spaced apart. At least one of the third clamping block (209) and the fourth clamping block (210) is movably disposed on the second clamping plate (202) to selectively clamp the battery end plate (402).

7. The pre-compression device according to claim 6, characterized in that, The first clamping block (207) is fixed to the first clamping plate (201), and the third clamping block (209) is fixed to the second clamping plate (202); The first pre-compression mechanism (200) further includes a third driving member (211) and a fourth driving member (212). The third driving member (211) is disposed on the first clamping plate (201), and the driving end of the third driving member (211) is connected to the second clamping block (208). The fourth driving member (212) is disposed on the second clamping plate (202), and the driving end of the fourth driving member (212) is connected to the fourth clamping block (210).

8. The pre-compression device according to claim 1, characterized in that, Along the first direction (A), the machine tool (100) has a centerline, and along the second direction (B), the machine tool (100) has a first end (103) and a second end (104), the centerline of the machine tool (100) is equidistant from the first end (103) and the second end (104), and the fourth clamping plate (302) is closer to the centerline of the machine tool (100) than the third clamping plate (301); The second pre-pressing mechanism (300) further includes a second movable seat (303). Along the second direction (B), the third clamping plate (301) is movably disposed on the second movable seat (303). Along the first direction (A), the second movable seat (303) is movably disposed on the machine tool (100).

9. The pre-compression device according to claim 8, characterized in that, The second pre-compression mechanism (300) further includes a fifth driving member (304) and a sixth driving member (305). The fifth driving member (304) is disposed on the machine tool (100). The driving end of the fifth driving member (304) is connected to the fourth clamping plate (302) so that the fourth clamping plate (302) moves closer to or away from the third clamping plate (301). The sixth driving member (305) is fixed to the second movable seat (303), and the driving end of the sixth driving member (305) is connected to the third clamping plate (301) so that the third clamping plate (301) moves closer to or away from the fourth clamping plate (302).

10. The pre-compression device according to claim 9, characterized in that, The second pre-compression mechanism (300) further includes a first guide portion (306) and a second guide portion (307). The first guide portion (306) is configured as a guide post and extends along the second direction (B). The second guide portion (307) is provided with a guide hole that cooperates with the guide post. The first guide portion (306) is fixed to the fourth clamping plate (302), and the second guide portion (307) is fixed to the machine tool (100).

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