Battery cell top cover jig

Abstract

The utility model belongs to the field of battery cell top covers, and particularly relates to a battery cell top cover jig which solves the problems that in the prior art, the same jig can only be matched with a battery cell and a top cover of one specification, and the application range is small. A battery cell fixing mechanism is arranged above the workbench, the battery cell fixing mechanism comprises a two-way screw rod, a fixing rod and two symmetrical first fixing seats, and first limiting frames are clamped to the inner walls of the two first fixing seats. Through the arrangement of the working table, the fixing frame, the battery cell fixing mechanism, the top cover fixing mechanism and the like, a clamping block and a second spring can be quickly replaced to adapt to battery cells and top covers of different specifications, and compared with an existing jig which cannot replace the clamping block and the second spring, the application range can be widened, the jig investment is reduced, and the production efficiency is improved. And the processing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core top covers, in particular to a battery core top cover fixture. Background Art

[0002] Now the battery technology has developed to a relatively mature stage. By using batteries as energy sources, we can obtain current with stable voltage, stable current, long-term stable power supply, and little external influence. The charging and discharging operations are simple and unaffected by the external climate and temperature. The performance is stable and reliable, and it plays a great role in all aspects of modern social life. In battery production, in order to facilitate the welding process between the battery cell and the top cover, a jig will be used to limit the battery cell and the top cover.

[0003] The authorization announcement number in the prior art is: CN206451771U, and its name is a battery cell top cover fixture. The device is configured with a battery cell top cover fixing base, a battery cell fixing station and a top cover fixing station, and optimizes the design of each structure. It is used to place the battery cell and the top cover at the same time, making it convenient for the top cover pole ear to clamp the battery cell pole ear, thereby realizing the mechanical automation production of the battery.

[0004] However, during the implementation of the technical solution of the above patent, the same fixture can only fix one specification of battery cells and top cover. In order to ensure the stability of the fixation of the battery cells and top cover, the existing fixture requires the clamping block and the fixing plate to adapt to the battery cells and top cover of this specification. Since there are many battery models, when processing batteries of different specifications, fixtures of multiple specifications are required to be used in combination, which makes the fixture cost relatively high. Utility Model Content

[0005] The technical problem solved by the utility model is that the same fixture can only be adapted to a battery cell and a top cover of one specification, and the application scope is relatively small. A battery cell top cover fixture is provided.

[0006] In order to solve the above technical problems, the utility model provides a battery cell top cover jig, comprising a workbench, the upper surface of the workbench is fixedly connected to a fixing frame, a battery cell fixing mechanism is arranged above the workbench, the battery cell fixing mechanism comprises a bidirectional screw, a fixing rod and two symmetrical first fixing seats, the inner walls of the two first fixing seats are clamped with a first limiting frame, the outer surfaces of the two first limiting frames are fixedly connected to a clamping block, the outer surfaces of the two first fixing seats are fixedly connected to a first spring, the ends of the two first springs away from the first fixing seat are fixedly connected to a first disc, and the outer surfaces of the two first discs are fixedly connected to the first limiting rod;

[0007] A top cover fixing mechanism is arranged above the workbench, and the top cover fixing mechanism includes a second fixing seat and an air pump, a second limiting frame is clamped on the inner wall of the second fixing seat, a suction frame is fixedly connected to the bottom surface of the second limiting frame, a second spring is fixedly connected to the bottom end of the second spring, and a second disc is fixedly connected to the upper surface of the second disc, and a second limiting rod is fixedly connected to the upper surface of the second disc.

[0008] Preferably, the two first limiting rods respectively pass through the two first fixing seats and are slidably connected to the two first fixing seats respectively, and the two first limiting rods are respectively adapted to the two first limiting frames, and when the first limiting rods are inserted into the first limiting frames, the first limiting frames can be fixed in the first fixing seats.

[0009] Preferably, the second limiting rod passes through the second fixing seat and is slidably connected to the second fixing seat, the second limiting rod is adapted to the second limiting frame, and the second limiting rod inserted into the second limiting frame can fix the second limiting frame in the second fixing seat.

[0010] Preferably, the bottom surfaces of the two first fixed seats are fixedly connected with internal thread moving blocks, the bidirectional screw is rotatably connected to the inner wall of the workbench, and the two internal thread moving blocks are threadedly connected to the outer surface of the bidirectional screw. When the bidirectional screw rotates, it can drive the two internal thread moving blocks to move away from or closer to each other.

[0011] Preferably, the fixing rod is fixedly connected to the inner wall of the workbench, and the two internally threaded moving blocks are both slidably connected to the outer surface of the fixing rod, and the fixing rod serves as a guide for the movement of the two internally threaded moving blocks.

[0012] Preferably, the vacuum pump is fixedly connected to the upper surface of the fixed frame, the input end of the vacuum pump is fixedly connected to a connecting pipe, the end of the connecting pipe away from the vacuum pump is fixedly connected to an internally threaded connecting pipe, and the upper surface of the adsorption frame is fixedly connected to an externally threaded connecting pipe, the externally threaded connecting pipe is adapted to the internally threaded connecting pipe, and the externally threaded connecting pipe and the internally threaded connecting pipe are provided with matching threads, so that the internally threaded connecting pipe can be installed on the externally threaded connecting pipe.

[0013] Preferably, an electric push rod is fixedly connected to the upper surface of the second fixing seat, and the top end of the electric push rod is fixedly connected to the inner top wall of the fixing frame. The extension and retraction of the electric push rod can drive the second fixing seat to move up and down.

[0014] Compared with the related art, the utility model has the following beneficial effects:

[0015] 1. The utility model can quickly replace the clamping block and the second spring to adapt to batteries and top covers of different specifications through the arrangement of structures such as a workbench, a fixing frame, a battery cell fixing mechanism and a top cover fixing mechanism. Compared with the existing jig that cannot replace the clamping block and the second spring, the utility model can improve the scope of application, reduce the investment in jigs, and thus reduce processing costs.

[0016] 2. The utility model is provided with external threaded connecting pipes and other structures through the arrangement of vacuum pumps, connecting pipes, internal threaded connecting pipes and external threaded connecting pipes. Adsorption racks of different specifications are all provided with external threaded connecting pipes. When replacing the adsorption rack, the adsorption rack is replaced by unscrewing the internal threaded connecting pipe, and the internal threaded connecting pipe is connected to the external threaded connecting pipe again. When in use, the vacuum pump is operated to evacuate air, and the air in the adsorption rack is evacuated under the action of the connecting pipe, so as to adsorb the top cover pole placed in the adsorption rack, so that the adsorption rack adsorbs and fixes the top cover.

[0017] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the first fixing seat and the bidirectional screw rod of the utility model;

[0021] Figure 3 It is a schematic diagram of the split structure of the first fixing seat, the first limiting frame and the first limiting rod of the utility model;

[0022] Figure 4 It is a schematic diagram of the separate structure of the second fixing seat, the second limiting frame and the second limiting rod of the utility model.

[0023] Numbers in the figure:

[0024] 1. Workbench; 2. Fixed frame;

[0025] 3. Cell fixing mechanism; 31. First fixing seat; 32. First limiting frame; 33. Clamping block; 34. First spring; 35. First disc; 36. First limiting rod; 37. Bidirectional screw; 38. Internal thread moving block; 39. Fixing rod;

[0026] 4. Top cover fixing mechanism; 41. Second fixing seat; 42. Second limiting frame; 43. Adsorption frame; 44. Second spring; 45. Second disc; 46. Second limiting rod; 47. Air pump; 48. Connecting pipe; 49. Internal thread connecting pipe; 410. External thread connecting pipe; 411. Electric push rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 , Figure 2 and Figure 3 A battery cell top cover jig comprises a workbench 1, a fixing frame 2 is fixedly connected to the upper surface of the workbench 1, a battery cell fixing mechanism 3 is arranged above the workbench 1, the battery cell fixing mechanism 3 comprises a bidirectional screw 37, a fixing rod 39 and two symmetrical first fixing seats 31, the inner walls of the two first fixing seats 31 are clamped with first limiting frames 32, the outer surfaces of the two first limiting frames 32 are fixedly connected with clamping blocks 33, the outer surfaces of the two first fixing seats 31 are fixedly connected with first springs 34, the ends of the two first springs 34 away from the first fixing seats 31 are fixedly connected with first discs 35, when the first limiting rod 36 is inserted into the first limiting frame 32, the first spring 34 is in a slightly stretched state, the setting of the first spring 34 can prevent the first limiting rod 36 from being unintentionally separated from the first limiting frame 32, and the outer surfaces of the two first discs 35 are fixedly connected with the first limiting rod 36.

[0029] The two first limiting rods 36 respectively pass through the two first fixing seats 31 and are slidably connected to the two first fixing seats 31 respectively. The two first limiting rods 36 are respectively adapted to the two first limiting frames 32. When the first limiting rods 36 are inserted into the first limiting frames 32, the first limiting frames 32 can be fixed in the first fixing seats 31.

[0030] The bottom surfaces of the two first fixed seats 31 are fixedly connected with internal thread moving blocks 38, and the bidirectional screw 37 is rotatably connected to the inner wall of the workbench 1. The two internal thread moving blocks 38 are threadedly connected to the outer surface of the bidirectional screw 37. When the bidirectional screw 37 rotates, it can drive the two internal thread moving blocks 38 to move away from or closer to each other. A servo motor is arranged on the workbench 1 to provide power for the rotation of the bidirectional screw 37.

[0031] The fixing rod 39 is fixedly connected to the inner wall of the workbench 1 , and the two internal thread moving blocks 38 are both slidably connected to the outer surface of the fixing rod 39 . The fixing rod 39 guides the movement of the two internal thread moving blocks 38 .

[0032] See also Figure 1 and Figure 4 A top cover fixing mechanism 4 is arranged above the workbench 1, and the top cover fixing mechanism 4 includes a second fixing seat 41 and an air pump 47. A second limiting frame 42 is clamped on the inner wall of the second fixing seat 41, and an adsorption frame 43 is fixedly connected to the bottom surface of the second limiting frame 42. A second spring 44 is fixedly connected to the bottom surface of the second fixing seat 41, and a second disc 45 is fixedly connected to the bottom end of the second spring 44. When the second limiting rod 46 is inserted into the second limiting frame 42, the second spring 44 is in a slightly stretched state. The setting of the second spring 44 can prevent the second limiting rod 46 from being unintentionally detached from the second limiting frame 42.

[0033] The upper surface of the second disk 45 is fixedly connected to the second limiting rod 46, the second limiting rod 46 passes through the second fixing seat 41 and is slidably connected to the second fixing seat 41, the second limiting rod 46 is adapted to the second limiting frame 42, and the second limiting rod 46 is inserted into the second limiting frame 42 to fix the second limiting frame 42 in the second fixing seat 41.

[0034] The vacuum pump 47 is fixedly connected to the upper surface of the fixed frame 2, and the input end of the vacuum pump 47 is fixedly connected to a connecting pipe 48, and the end of the connecting pipe 48 away from the vacuum pump 47 is fixedly connected to an internally threaded connecting pipe 49, and the upper surface of the adsorption frame 43 is fixedly connected to an externally threaded connecting pipe 410, and the externally threaded connecting pipe 410 is adapted to the internally threaded connecting pipe 49, and the externally threaded connecting pipe 410 and the internally threaded connecting pipe 49 are provided with matching threads, so that the internally threaded connecting pipe 49 can be installed on the externally threaded connecting pipe 410.

[0035] An electric push rod 411 is fixedly connected to the upper surface of the second fixing seat 41 . The top end of the electric push rod 411 is fixedly connected to the inner top wall of the fixing frame 2 . The extension and retraction of the electric push rod 411 can drive the second fixing seat 41 to move up and down.

[0036] The specific implementation process of the utility model is as follows: pull the first disc 35 outward to move the first limiting rod 36 out of the first limiting frame 32, and then the first limiting frame 32 can be pulled out from the first fixing seat 31, and then replace the matching clamping block 33, insert the replaced first limiting frame 32 into the first fixing seat 31, loosen the first disc 35, and push the first limiting rod 36 to insert into the first limiting frame 32 under the action of the stretched first spring 34, complete the replacement of the clamping block 33, unscrew the internal threaded connecting tube 49 from the external threaded connecting tube 410, and then pull the second disc 45 downward, and then the second limiting frame 42 can be pulled out, and then replace the matching adsorption frame 43, insert the replaced second limiting frame 42 into the second fixing seat 41, and insert the second limiting rod 46 into the second limiting frame 42, and then tighten the internal threaded connecting tube 49 to the replaced external threaded connecting tube 410 to complete the fixation of the adsorption frame 43;

[0037] The battery cell is placed between the two clamping blocks 33, and the servo motor on the bidirectional screw 37 is controlled to operate. The rotation of the bidirectional screw 37 drives the two internal thread moving blocks 38 to approach each other, and the two clamping blocks 33 clamp and fix the battery cell. The top cover pole is placed in the adsorption frame 43, and the operation of the vacuum pump 47 is controlled. The vacuum pump 47 evacuates the connecting pipe 48, so that the top cover is adsorbed on the adsorption frame 43, and then the electric push rod 411 is controlled to extend and retract to move the top cover onto the battery cell. Then the battery cell and the top cover can be welded. The device can quickly replace the clamping block 33 and the second spring 44 to adapt to battery cells and top covers of different specifications.

[0038] 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 cell top cover jig, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected to a fixing frame (2), and a battery cell fixing mechanism (3) is arranged above the workbench (1). The battery cell fixing mechanism (3) comprises a bidirectional screw (37), a fixing rod (39) and two symmetrical first fixing seats (31), the inner walls of the two first fixing seats (31) are clamped with a first limiting frame (32), the outer surfaces of the two first limiting frames (32) are fixedly connected to a clamping block (33), the outer surfaces of the two first fixing seats (31) are fixedly connected to a first spring (34), the ends of the two first springs (34) away from the first fixing seat (31) are fixedly connected to a first disc (35), and the outer surfaces of the two first discs (35) are fixedly connected to a first limiting rod (36); A top cover fixing mechanism (4) is arranged above the workbench (1), and the top cover fixing mechanism (4) comprises a second fixing seat (41) and an air pump (47); a second limiting frame (42) is clamped on the inner wall of the second fixing seat (41); a suction frame (43) is fixedly connected to the bottom surface of the second limiting frame (42); a second spring (44) is fixedly connected to the bottom surface of the second fixing seat (41); a second disc (45) is fixedly connected to the bottom end of the second spring (44); and a second limiting rod (46) is fixedly connected to the upper surface of the second disc (45).

2. A battery cell top cover jig according to claim 1, characterized in that: The two first limiting rods (36) respectively penetrate the two first fixing seats (31) and are respectively slidably connected to the two first fixing seats (31); the two first limiting rods (36) are respectively matched with the two first limiting frames (32).

3. The battery cell top cover jig according to claim 1, characterized in that: The second limiting rod (46) passes through the second fixing seat (41) and is slidably connected to the second fixing seat (41); the second limiting rod (46) is adapted to the second limiting frame (42).

4. The battery cell top cover jig according to claim 1, characterized in that: The bottom surfaces of the two first fixed seats (31) are fixedly connected with internal thread moving blocks (38), the bidirectional screw (37) is rotatably connected to the inner wall of the workbench (1), and the two internal thread moving blocks (38) are threadedly connected to the outer surface of the bidirectional screw (37).

5. A battery cell top cover jig according to claim 4, characterized in that: The fixed rod (39) is fixedly connected to the inner wall of the workbench (1), and the two internal thread moving blocks (38) are both slidably connected to the outer surface of the fixed rod (39).

6. The battery cell top cover jig according to claim 1, characterized in that: The vacuum pump (47) is fixedly connected to the upper surface of the fixed frame (2); the input end of the vacuum pump (47) is fixedly connected to a connecting pipe (48); the end of the connecting pipe (48) away from the vacuum pump (47) is fixedly connected to an internally threaded connecting pipe (49); the upper surface of the adsorption frame (43) is fixedly connected to an externally threaded connecting pipe (410); the externally threaded connecting pipe (410) is compatible with the internally threaded connecting pipe (49).

7. The battery cell top cover jig according to claim 1, characterized in that: An electric push rod (411) is fixedly connected to the upper surface of the second fixing seat (41), and the top end of the electric push rod (411) is fixedly connected to the inner top wall of the fixing frame (2).

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