Assembling device of battery pack

Abstract

The utility model provides an assembling device of a battery pack, which comprises a discharging module, a discharging module and a discharging module, the discharging module comprises a machine table, two groups of parallel side frames are correspondingly arranged on the machine table, two movable extrusion frames are correspondingly arranged between the two groups of side frames in parallel, and a discharging area is formed between the two adjacent side frames and the extrusion frame; the extrusion frames are connected with an extrusion driving structure, the extrusion driving structure can drive the two extrusion frames to move face to face or back to back, and the extrusion driving structure comprises a transmission part arranged on the machine table and a driving part arranged on one side of the machine table; and the assembling module is arranged above the discharging module, the assembling module comprises a mounting frame, and a liftable end plate mounting structure is arranged on the mounting frame and used for mounting an end plate. By means of the mode, after the side edges of the single battery pack to be assembled are extruded in order, the end plates are placed, and the steel belt is sleeved, so that the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery assembly, in particular to an assembly device for a battery pack. Background Art

[0002] As environmental and energy issues become increasingly severe, low-carbon and environmentally friendly energy has become an inevitable choice for future economic development. Hybrid vehicles and electric vehicles, which are representatives of new energy vehicles, have also gradually developed and gained recognition from consumers and support from the government. Power battery modules are the main power source for new energy vehicles, as well as the main components and key technologies of electric vehicles.

[0003] The most notable feature of power battery modules in the fields of electric vehicles and energy storage power stations is modular assembly, that is, a number of single batteries are assembled into battery packs, and then multiple single battery packs are assembled in series / parallel into battery modules. Therefore, cost and reliability design is an important part of battery module design.

[0004] Among them, the battery pack includes a number of single cells, and two adjacent single cells are pre-stacked and connected by double-sided tape to form a single cell pack, and then end plates are arranged at both ends of the single cell pack, and then steel rings are set on the outside of the single cell pack and the end plates on both sides for overall fixation, so as to form a complete battery pack. In the process of pre-stacking single cells, it is easy for some single cell sides to be misaligned, and the side of the single cell pack is easy to have some protrusions, which makes it difficult to directly put on the steel belt in the later stage, resulting in increased difficulty in the processing process, requiring manual correction, and the operator's operation process is complicated, time-consuming, and low work efficiency. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a battery pack assembly device which has a simple structure and effectively improves working efficiency.

[0006] The main contents of the utility model include: a material discharge module, which includes a machine platform, on which two sets of mutually parallel side frames are correspondingly arranged, and two movable extrusion frames are correspondingly arranged in parallel between the two sets of side frames, and a material discharge area is formed between two adjacent side frames and the extrusion frames for placing the single battery group to be assembled; the extrusion frame is connected to an extrusion drive structure, and the extrusion drive structure can drive the two extrusion frames to move toward or away from each other, and the extrusion drive structure includes a transmission part placed on the machine platform and a drive part placed on one side of the machine platform;

[0007] The assembly module is placed above the discharge module. The assembly module includes a mounting frame, and the mounting frame is provided with a liftable end plate mounting structure for mounting the end plate.

[0008] Preferably, the driving part includes a first supporting frame, a first lifting cylinder is correspondingly arranged on the first supporting frame, the output end of the first lifting cylinder is connected to a first connecting plate, a first transverse slide rail and a first transverse cylinder are arranged on the first connecting plate, the first transverse slide rail is extended toward the discharge module, a second connecting plate is slidably arranged thereon, the second connecting plate is connected to the first transverse cylinder, a rotating motor is arranged at the bottom of the second connecting plate, the output end of the rotating motor faces the discharge module and is connected to an active rotating part.

[0009] Preferably, the transmission part includes a rotating rod, which is mounted between the two extrusion frames through a first bracket, and the end of the rotating rod is connected to a rotating member, which can cooperate with the active rotating member to drive the rotating rod to rotate, and a plurality of extrusion members are arranged on the rotating rod, and the extrusion members are connected to the extrusion frames on both sides.

[0010] Preferably, the rotating component includes a transmission gear, a transmission rack, a transmission screw and a driven rotating member, the transmission gear is sleeved on the end of the rotating rod, the transmission rack is arranged below the transmission gear through a support plate and meshes with the transmission gear, the end of the support plate close to the driving part is connected to the transmission screw and the transmission screw can rotate relative to the support plate, a screw nut is provided in the middle of the transmission screw through threaded cooperation, the screw nut is fixed on the machine platform, the end of the transmission screw close to the driving part is connected to the driven rotating member, and the driven rotating member can cooperate with the active rotating member.

[0011] Preferably, the end surface of the driven rotating member is provided with a hole-shaped structure, and the end surface of the active rotating member is correspondingly provided with a convex block structure matching with the hole-shaped structure.

[0012] Alternatively, the end surface of the driven rotating member is provided with a convex block structure, and the end surface of the active rotating member is correspondingly provided with a hole structure matching with the convex block structure.

[0013] Preferably, the hole-shaped structure is correspondingly configured as a straight hole or a cross hole, and the convex block structure is correspondingly configured as a straight convex block or a cross convex block.

[0014] Preferably, the support plate bottom plate is provided with a guide rail, the support plate is slidably arranged on the guide rail, and the extension direction of the guide rail is consistent with the moving direction of the transmission screw.

[0015] Preferably, the extrusion member includes a top plate mounted on the upper end of the first bracket, a first extrusion slide rail is correspondingly arranged at the bottom of the top plate, the first extrusion slide rail is extended along a parallel direction of the extrusion frame, a second extrusion slide rail is arranged on the machine platform corresponding to the first extrusion slide rail, a first extrusion push block and a second extrusion push block are respectively slidably arranged on the first extrusion slide rail and the second extrusion slide rail, a first pin shaft and a second pin shaft are protruded on one side of the first extrusion push block and the second extrusion push block along the extension direction of the rotating rod, a rotating shaft is correspondingly fixedly arranged on the rotating rod, and sliding grooves are correspondingly opened at both ends of the rotating shaft, and the first pin shaft and the second pin shaft are respectively inserted into the sliding grooves.

[0016] Preferably, the end plate mounting structure includes a third connecting plate, and the second transverse slide rail and the second transverse cylinder are arranged at both ends of the bottom of the third connecting plate. A fourth connecting plate is slidably arranged on the second transverse slide rail, and a hanging plate is correspondingly arranged at the bottom of the fourth connecting plate. A protruding plug-in is correspondingly arranged on the inner side of the hanging plate, and the plug-in can be correspondingly inserted into the socket on the side of the end plate.

[0017] The beneficial effect of the utility model is that the fixed side frame is used in conjunction with the movable extrusion frame to perform an extrusion action on the single battery group to be assembled, so that the side edges of the single battery group are aligned, which is convenient for the subsequent steel belt assembly and effectively saves manpower;

[0018] By utilizing the rotation of the rotating shaft to drive two groups of extrusion frames to perform extrusion actions at the same time, the shaping actions of two groups of single battery groups can be completed. The operation process is simple and the work efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a preferred embodiment;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of a discharge module in a preferred embodiment;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the transmission part of a preferred embodiment without the top plate;

[0022] Figure 4 for Figure 3 A schematic diagram of the partially enlarged three-dimensional structure at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of a driving part of a preferred embodiment;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of an assembly module of a preferred embodiment;

[0025] Reference numerals:

[0026] 1. Unloading module; 2. Assembly module;

[0027] 11. Machine platform; 12. Side frame; 13. Extrusion frame; 14. Driving unit; 15. Transmission unit;

[0028] 141. first support frame; 142. first lifting cylinder; 143. first connecting plate; 144. first transverse sliding rail; 145. first transverse cylinder; 146. second connecting plate; 147. rotating motor; 148. active rotating member;

[0029] 151, rotating rod; 152, first bracket; 153, transmission gear; 154, transmission rack; 155, transmission screw; 156, driven rotating member; 157, support plate; 158, screw nut;

[0030] 161, top plate; 162, first extrusion slide rail; 163, first extrusion push block; 164, second extrusion slide rail; 165, second extrusion push block; 166, first pin shaft; 167, second pin shaft; 168, rotating shaft; 169, slide groove;

[0031] 21. Mounting frame; 22. Second lifting cylinder; 231. Third connecting plate; 232. Second transverse cylinder; 233. Second transverse slide rail; 234. Fourth connecting plate; 235. Hanging plate; 236. Plug-in. DETAILED DESCRIPTION

[0032] The technical solution protected by the utility model is described in detail below with reference to the accompanying drawings.

[0033] like Figure 1 As shown, a battery pack assembly device includes a discharge module 1 for placing a single battery pack to be assembled, and an assembly module 2 is correspondingly arranged above the discharge module 1. The end plates can be placed at the two ends of the single battery pack respectively, and then the steel belt is manually sleeved on the end plates and the circumference of the single battery pack to complete the assembly of the battery pack.

[0034] like Figure 1-2 As shown, the discharge module 1 includes a machine table 11, on which two groups of mutually parallel side frames 12 are correspondingly arranged, and two mutually parallel and movable extrusion frames 13 are arranged between the two side frames 12. A discharge area is formed between two adjacent extrusion frames 13 and the side frames 12. A mechanical clamp is used to grab the single battery group and place it in the discharge area. After the extrusion frame 13 is subjected to force, it can move toward the side frame 12 to squeeze the single battery group between the extrusion frame 13 and the side frame 12. The extrusion frame 13 applies horizontal extrusion force to the single battery group, which can shape the single battery group so that a number of single batteries arranged in sequence can be aligned on the sides.

[0035] like Figure 1-2As shown, the two extrusion frames 13 are connected to the extrusion drive structure, and the extrusion drive structure drives the extrusion frames 13 on both sides to move toward or away from each other. The extrusion drive structure includes a driving part 14 placed on one side of the machine 11 and a transmission part 15 placed between the two extrusion frames 13. The driving part 14 applies a force, which is then converted into an extrusion force applied to the extrusion frame 13 through the transmission part 15, and the extrusion frames 13 on both sides move synchronously, so that two groups of single battery packs can be operated at the same time, effectively improving work efficiency.

[0036] like Figure 1-5 As shown, the driving part 14 includes a first support frame 141 placed on one side of the machine 11, and a first lifting cylinder 142 is correspondingly arranged on the first support frame 141, and the output end of the first lifting cylinder 142 is connected to a first connecting plate 143, and a first transverse sliding rail 144 is arranged on the first connecting plate 143, and the first transverse sliding rail 144 is extended in the direction of the material discharge module 1, and a second connecting plate 146 is slidably arranged on the first transverse sliding rail 144, and the second connecting plate 146 is connected to the first transverse cylinder 145, and the second connecting plate 146 is driven to slide back and forth along the first transverse sliding rail 144 by the action of the first transverse cylinder 145. A rotating motor 147 is arranged at the bottom of the second connecting plate 146, and the rotating motor 147 is placed horizontally, and its output end faces the material discharge module and is connected to an active rotating member 148, and the active rotating member 148 is driven to rotate by the action of the rotating motor 147.

[0037] like Figure 1-4 As shown, the transmission part 15 includes a rotating rod 151, which is rotatably mounted between the two extrusion frames 13 through a first bracket 152. A rotating member is provided at the end of the rotating rod 151, and the rotating member can cooperate with the active rotating member 148 to drive the rotating rod 151 to rotate. A plurality of extrusion members are arranged on the rotating rod 151, and the extrusion members are connected to the extrusion frames 13 on both sides, and exert a horizontal force on the extrusion frames 13 on both sides, so as to drive the extrusion frames 13 on both sides to move toward or away from each other.

[0038] like Figure 1-4As shown, the rotating member includes a transmission gear 153, a transmission rack 154, a transmission screw 155 and a driven rotating member 156. The transmission gear 153 is correspondingly sleeved on the end of the rotating rod 151, and the rotation of the transmission gear 153 drives the rotating rod 151 to rotate synchronously. The transmission rack 154 is arranged on a support plate 157 and the transmission rack 154 is meshed and arranged below the transmission gear 153. The end of the support plate 157 close to the driving part 14 is connected to the transmission screw 155, and the transmission screw 155 can rotate relative to the support plate 157 and can drive the support plate 157 to move synchronously along the straight line direction. The end of the transmission screw 155 close to the driving part 14 is connected to the driven rotating member 156, and the driven rotating member 156 can cooperate with the active rotating member 148. The middle section of the transmission screw 155 is provided with a screw nut 158 ​​through threaded cooperation, and the screw nut 158 ​​is correspondingly fixed on the machine table 11. The active rotating member 148 drives the driven rotating member 156 to rotate, and the transmission screw 155 rotates synchronously. The transmission screw 155 moves along a straight line, driving the support plate 157 and the transmission rack 154 placed on the support plate 157 to move synchronously along a straight line, thereby driving the transmission gear 153 engaged with the transmission rack 154 to rotate. Preferably, a guide rail (not shown) is provided at the position of the machine table 11 corresponding to the support plate 157, and the bottom of the support plate 157 is slidably provided on the guide rail through a slider. The extension direction of the guide rail is consistent with the moving direction of the transmission screw 155, which can improve the stability of the support plate 157 during movement and determine its sliding direction, ensuring that the transmission rack 154 is always engaged with the transmission gear 153.

[0039] like Figure 1-5 As shown, a hole-shaped structure is provided on one end face of the driven rotating member 156 and the driving rotating member 148, and a convex structure is provided on the other end face. The convex structure can be correspondingly clamped in the hole-shaped structure, so that the driving rotating member can drive the driven rotating member to rotate synchronously. That is, in a specific embodiment, the end face of the driving rotating member 148 is correspondingly provided with a convex structure, and the end face of the driven rotating member 156 is correspondingly provided with a hole-shaped structure; or, the end face of the driven rotating member 156 is correspondingly provided with a convex structure, and the end face of the driving rotating member 148 is correspondingly provided with a hole-shaped structure. Preferably, the hole-shaped structure can correspond to a straight hole or a cross hole, and the convex structure can also correspond to a straight convex block or a cross convex block.

[0040] like Figure 1-5As shown, the extrusion member includes a top plate 161 mounted on the upper end of the first bracket 152, and a first extrusion slide rail 162 is correspondingly arranged at the bottom of the top plate 161. The two ends of the first extrusion slide rail 162 extend toward the extrusion frames 13 on both sides, and a second extrusion slide rail 164 is arranged in parallel at the position corresponding to the first extrusion slide rail 162 on the machine platform 11. A first extrusion push block 163 and a second extrusion push block 165 are slidably arranged on the first extrusion slide rail 162 and the second extrusion slide rail 164, respectively. The first extrusion push block 163 and the second extrusion push block 165 are protruded along one side of the extension direction of the rotating rod 151 with a first pin shaft 166 and a second pin shaft 167. A rotating shaft 168 is correspondingly fixedly arranged on the rotating rod 151, and a slide groove 169 is correspondingly opened at both ends of the rotating shaft 168. The first pin shaft 166 and the second pin shaft 167 are respectively inserted into the slide grooves 169 at both ends.

[0041] like Figure 1-5 As shown, the rotating rod 151 rotates, driving the rotating shaft 168 fixed thereon to rotate synchronously, that is, the first pin 166 and the second pin 167 inserted in the slide grooves 169 at both ends of the rotating shaft 168 rotate synchronously, pushing the corresponding first extrusion push block 163 and the second extrusion push block 165 to slide toward or away from each other along the first extrusion slide rail 162 and the second extrusion slide rail 164. When the first extrusion push block 163 and the second extrusion push block 165 slide away from each other, the extrusion frames respectively connected to the extrusion push blocks respectively move toward the corresponding discharge area, and perform an extrusion shaping action on the single battery group placed in the discharge area; when the first extrusion push block 163 and the second extrusion push block 165 slide toward each other, the extrusion frames respectively connected to the extrusion push blocks are close to each other, which is convenient for taking and placing the single battery group in the discharge area.

[0042] like Figure 1 and 6 As shown, the assembly module includes a mounting frame 21, and a liftable end plate mounting structure is arranged on the mounting frame 21 through a second lifting cylinder 22. The end plate mounting structure includes a third connecting plate 231 arranged at the output end of the second lifting cylinder 22, and the second transverse sliding rail 233 and the second transverse cylinder 232 are correspondingly arranged at the two ends of the bottom of the third connecting plate 231, and the second transverse sliding rail extends toward the center of the third connecting plate, and the extension direction is consistent with the length direction of the single battery group placed in the lower discharge area, and the fourth connecting plate 234 is slidably arranged on the second transverse sliding rail 233, and the bottom of the fourth connecting plate 234 is correspondingly arranged with a hanging plate 235, and a protruding plug-in 236 is correspondingly arranged on the inner side of the hanging plate 235, and the plug-in 236 can be correspondingly inserted into the socket on the side of the end plate.

[0043] Specific working principle:

[0044] The operator places the steel ring at the discharge area in advance, and the external mechanical clamp places the single battery pack in the discharge area. The first lifting cylinder 142 drives the first connecting plate 143 to descend until the active rotating member 148 and the driven rotating member 156 are at the same linear height. The first transverse cylinder 145 pushes the second connecting plate 146 to move toward the transmission part, so that the active rotating member 148 and the driven rotating member 156 are engaged with each other. The rotating motor 147 is actuated to drive the active rotating member 148 to rotate, that is, the driven rotating member 156 rotates synchronously, and the transmission screw 155 rotates while moving in a linear direction. After the transmission rack 154 moves in a linear direction, the rotation of the transmission gear 153 and the rotating rod 151 can be realized.

[0045] The first extrusion push block 163 and the second extrusion push block 165 slide in opposite directions, and the corresponding extrusion frames 13 on both sides squeeze the single battery group in the discharge area to shape the side of the single battery group. Then the second lifting cylinder 22 above is actuated to drive the third connecting plate 231 to descend, and the second transverse cylinder 232 is actuated to drive the fourth connecting plate 134 to slide toward the middle along the second transverse slide rail 232, so that the end plates on both sides are correspondingly placed at the two ends of the single battery group. The second lifting cylinder 22 then drives the third connecting plate 231 to descend, and the second transverse cylinder 232 retreats, so that the end plates are correspondingly separated from the hanging plates 235 on both sides and placed on the side of the single battery group.

[0046] The operator will lift the preset steel belt from the bottom upwards, put it on the end plate and the circumference of the single battery pack, and then put another set of steel belts from the top to complete the assembly of the battery pack.

[0047] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery pack assembly device, characterized in that: Mainly include: A material discharge module, comprising a machine platform, on which two sets of mutually parallel side frames are correspondingly arranged, and between the two sets of the side frames, two movable extrusion frames are correspondingly arranged in parallel, and a material discharge area is formed between two adjacent side frames and the extrusion frames for placing the single battery group to be assembled; the extrusion frames are connected to an extrusion drive structure, and the extrusion drive structure can drive the two extrusion frames to move toward or away from each other, and the extrusion drive structure includes a transmission part arranged on the machine platform and a drive part arranged on one side of the machine platform; The assembly module is placed above the discharge module. The assembly module includes a mounting frame, and the mounting frame is provided with a liftable end plate mounting structure for mounting the end plate.

2. A battery pack assembly device according to claim 1, characterized in that: The driving part includes a first supporting frame, on which a first lifting cylinder is correspondingly arranged, an output end of the first lifting cylinder is connected to a first connecting plate, on which a first transverse slide rail and a first transverse cylinder are arranged, the first transverse slide rail is extended toward the discharge module, a second connecting plate is slidably arranged thereon, the second connecting plate is connected to the first transverse cylinder, a rotating motor is arranged at the bottom of the second connecting plate, and an output end of the rotating motor faces the discharge module and is connected to an active rotating part.

3. A battery pack assembly device according to claim 2, characterized in that: The transmission part includes a rotating rod, which is mounted between the two extrusion frames through a first bracket. The end of the rotating rod is connected to a rotating component, which can cooperate with the active rotating component to drive the rotating rod to rotate. A plurality of extrusion components are arranged on the rotating rod, and the extrusion components are connected to the extrusion frames on both sides.

4. A battery pack assembly device according to claim 3, characterized in that: The rotating component includes a transmission gear, a transmission rack, a transmission screw and a driven rotating member, the transmission gear is sleeved on the end of the rotating rod, the transmission rack is arranged below the transmission gear through a support plate and meshes with the transmission gear, the end of the support plate close to the driving part is connected to the transmission screw and the transmission screw can rotate relative to the support plate, a screw nut is provided in the middle of the transmission screw through threaded cooperation, the screw nut is fixed on the machine platform, the end of the transmission screw close to the driving part is connected to the driven rotating member, and the driven rotating member can cooperate with the active rotating member.

5. The battery pack assembly device according to claim 4, characterized in that: The end surface of the driven rotating member is provided with a hole-shaped structure, and the end surface of the active rotating member is correspondingly provided with a convex block structure matching with the hole-shaped structure. Alternatively, the end surface of the driven rotating member is provided with a convex block structure, and the end surface of the active rotating member is correspondingly provided with a hole structure matching with the convex block structure.

6. The battery pack assembly device according to claim 5, characterized in that: The hole-shaped structure is correspondingly configured as a straight hole or a cross hole, and the convex block structure is correspondingly configured as a straight convex block or a cross convex block.

7. The battery pack assembly device according to claim 4, characterized in that: The support plate bottom plate is provided with a guide rail, the support plate is slidably arranged on the guide rail, and the extension direction of the guide rail is consistent with the moving direction of the transmission screw.

8. The battery pack assembly device according to claim 3, characterized in that: The extrusion component includes a top plate mounted on the upper end of the first bracket, a first extrusion slide rail is correspondingly arranged at the bottom of the top plate, the first extrusion slide rail is extended along a parallel direction of the extrusion frame, a second extrusion slide rail is arranged on the machine platform corresponding to the first extrusion slide rail, a first extrusion push block and a second extrusion push block are respectively slidably arranged on the first extrusion slide rail and the second extrusion slide rail, a first pin shaft and a second pin shaft are protruded on one side of the first extrusion push block and the second extrusion push block along the extension direction of the rotating rod, a rotating shaft is correspondingly fixedly arranged on the rotating rod, and sliding grooves are correspondingly opened at both ends of the rotating shaft, and the first pin shaft and the second pin shaft are respectively inserted into the sliding grooves.

9. The battery pack assembly device according to claim 1, characterized in that: The end plate mounting structure includes a third connecting plate, and the second transverse sliding rail and the second transverse sliding cylinder are arranged at both ends of the bottom of the third connecting plate. The fourth connecting plate is slidably arranged on the second transverse sliding rail. A hanging plate is correspondingly arranged at the bottom of the fourth connecting plate, and a protruding plug-in is correspondingly arranged on the inner side of the hanging plate, and the plug-in can be correspondingly inserted into the socket on the side of the end plate.

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