Battery cover pressing mechanism

Abstract

The utility model discloses a battery cover pressing mechanism, which relates to the field of battery processing, including a workbench, a positioning platform for placing batteries is arranged on the top of the workbench, a fixed seat and a movable seat are arranged on the top of the workbench in a front-to-back symmetrical distribution, the fixed seat is fixedly connected to the workbench, and the movable seat is slidably connected to the workbench along the front-to-back direction. The beneficial effect is that the movable seat is driven to move by a power component, so that the front and rear corresponding connecting rods are closed or unfolded, and the positioning clamp fixes the battery, and the symmetry axis of the front and rear corresponding connecting rods always coincides with the symmetry axis of the fixed seat and the movable seat, that is, the pressing assembly is always located in the middle of the fixed seat and the movable seat, and the distance between the fixed seat and the movable seat is consistent with the width of the battery. Therefore, for batteries of different sizes, the center line of the movement direction of the pressing assembly always coincides with the center line of the battery, so that the force between the cover and the battery is balanced, ensuring the pressing effect.

Description

Technical Field

[0001] The utility model relates to the field of battery processing, in particular to a battery cover plate pressing mechanism. Background Art

[0002] In the production process of lithium battery cells, the lithium battery needs to be positioned and fixed first, and then hammered into the shell with a hammer. The strength of the hammer hitting the cover plate into the shell cannot be determined, and the horizontality of the lithium battery cover plate cannot be guaranteed due to the influence of human operation, resulting in uneven product quality. In order to reduce the intensity of manual labor, more and more applications are being used to press the lithium battery cover plate with the help of press-fitting fixtures.

[0003] For example, the patent document with the announcement number CN215433467U discloses a lithium battery cover positioning and pressing fixture. When using the lithium battery cover, the control unit first controls the positioning mechanism to work and move toward the stage. According to the size of the lithium battery, the moving distance of the positioning mechanism is controlled so that the positioning mechanism contacts and pushes one side of the lithium battery to fix and position the lithium battery on the stage. Then the control unit controls the driving mechanism to work and drives the pressing mechanism to approach the stage so that the pressing mechanism presses the lithium battery pressure plate on the stage to press the aluminum shell cover in.

[0004] However, in the above patent, although batteries of different sizes can be press-fitted, the pressing mechanism is fixed relative to the width direction of the battery. For batteries of different sizes, the center line of the pressing mechanism's movement direction is parallel to but not coincident with the center line of the battery. Therefore, during press-fitting, the force on the battery and the cover may be unbalanced, and the cover may even not be fully pressed into the battery. Utility Model Content

[0005] The purpose of the utility model is to provide a battery cover press-fitting mechanism in order to solve the above-mentioned problem.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A battery cover pressing mechanism comprises a workbench, a positioning table for placing batteries is arranged on the top of the workbench, a fixed seat and a movable seat which are symmetrically distributed front and back are arranged on the top of the workbench, the fixed seat is fixedly connected to the workbench, the movable seat is slidably connected to the workbench along the front and back directions, connecting rods are hinged on both sides of the fixed seat and the movable seat, a guide block is hinged between the two connecting rods corresponding to the front and back, a centering guide assembly for limiting the moving direction of the guide block is arranged on the top of the workbench, a positioning splint is fixedly connected to the top of the movable seat, a power assembly for driving the movable seat to translate is installed on the top of the workbench, a pushing assembly is installed on the centering guide assembly, the positioning table is located at the output end of the pushing assembly, a pressing assembly is installed on the positioning splint, and the pressing assembly is located between the positioning table and the pushing assembly.

[0008] Preferably, the centering guide assembly includes a guide rod, which passes through the two guide blocks and is slidably connected to the guide blocks. Both ends of the guide rod are fixedly connected with slide seats. The top of the workbench is provided with a first T-slot and a second T-slot. The slide seat is slidably connected to the workbench through the second T-slot. The movable seat is slidably connected to the workbench through the first T-slot. Steel balls are movably embedded in the bottom of the movable seat and the slide seat.

[0009] Preferably, the power assembly includes a motor, the motor is fixedly connected to the top of the workbench, the output shaft of the motor is fixedly connected to a screw rod, the screw rod passes through the fixed seat and the movable seat, the screw rod is rotatably connected to the fixed seat, the screw rod is threadedly connected to the movable seat, the end of the screw rod away from the motor is rotatably connected to a support, and the support is fixedly connected to the top of the workbench.

[0010] Preferably, the positioning platform includes a pillar, the pillar is fixedly connected to the top of the workbench, a placement plate is fixedly connected to the top of the pillar, and an L-shaped positioning baffle is fixedly connected to the top of the placement plate.

[0011] Preferably, the pushing assembly includes a connecting block, the connecting block is fixedly connected to the middle part of the guide rod, the top of the connecting block is fixedly connected to a support plate, the top of the support plate is fixedly connected to a press cylinder, and the output shaft of the press cylinder is fixedly connected to a push plate.

[0012] Preferably, the press-fitting assembly includes a mounting plate, the mounting plate is fixedly connected to the slide seat near the positioning platform, a slide groove is provided on the top of the mounting plate, the mounting plate is slidably connected to a slide plate through the slide groove, a pressing plate is fixedly connected to one side of the slide plate near the positioning platform, and a pole avoidance groove is provided in the pressing plate.

[0013] The beneficial effect is that the movable seat is driven to move by the power component, so that the corresponding front and rear connecting rods are closed or unfolded, and the positioning clamp fixes the battery. The symmetry axes of the corresponding front and rear connecting rods always coincide with the symmetry axes of the fixed seat and the movable seat, that is, the press-fitting assembly is always located in the middle of the fixed seat and the movable seat, and the distance between the fixed seat and the movable seat is consistent with the width of the battery. Therefore, for batteries of different sizes, the center line of the movement direction of the press-fitting assembly always coincides with the center line of the battery, so that the force between the cover plate and the battery is balanced, thereby ensuring the press-fitting effect.

[0014] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 It is a three-dimensional diagram of a battery cover press-fitting mechanism described in the utility model;

[0017] Figure 2 It is a top view of a battery cover press-fitting mechanism described in the utility model;

[0018] Figure 3 It is a front view of a battery cover press-fitting mechanism described in the utility model;

[0019] Figure 4 It is a three-dimensional diagram of a centering clamping assembly of a battery cover press-fitting mechanism described in the utility model;

[0020] Figure 5 It is a three-dimensional diagram of a press-fitting assembly of a battery cover press-fitting mechanism described in the utility model;

[0021] Figure 6 It is a front view of the connection structure between the movable seat, the sliding seat and the workbench of a battery cover press-fitting mechanism described in the utility model.

[0022] The accompanying drawings are described as follows: 1. workbench; 101. first T-slot; 102. second T-slot; 201. pillar; 202. placement plate; 203. positioning baffle; 301. fixed seat; 302. movable seat; 303. connecting rod; 304. guide block; 305. positioning clamp; 401. guide rod; 402. slide seat; 501. motor; 502. screw rod; 503. support; 601. mounting plate; 602. slide groove; 603. slide plate; 604. pressing plate; 605. pole avoidance groove; 701. connecting block; 702. support plate; 703. press-fit cylinder; 704. push plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1-Figure 6 As shown, a battery cover pressing mechanism includes a workbench 1, a positioning platform for placing batteries is arranged on the top of the workbench 1, the positioning platform includes a pillar 201, the pillar 201 is fixedly connected to the top of the workbench 1, a placement plate 202 is fixedly connected to the top of the pillar 201, an L-shaped positioning baffle 203 is fixedly connected to the top of the placement plate 202, the corner of the positioning baffle 203 is located on the right front side of the placement plate 202, the battery is placed on the placement plate 202, and the front side surface and the right side surface of the battery are attached to the positioning baffle 203.

[0027] A fixed seat 301 and a movable seat 302 which are symmetrically distributed front to back are provided on the top of the workbench 1. The fixed seat 301 is fixedly connected to the workbench 1, and the movable seat 302 is slidably connected to the workbench 1 along the front and rear directions. Connecting rods 303 are hinged on both sides of the fixed seat 301 and the movable seat 302, and a guide block 304 is hinged between the two connecting rods 303 corresponding to the front and rear. A centering guide assembly for limiting the moving direction of the guide block 304 is provided on the top of the workbench 1. A positioning splint 305 is fixedly connected to the top of the movable seat 302. By adjusting the front and rear position of the movable seat 302, the positioning splint 305 is made to stick to the rear side of the battery, so that the battery is fixed on the placement plate 202 by clamping the positioning splint 305 and the positioning baffle 203. A power assembly for driving the movable seat 302 to translate is installed on the top of the workbench 1, a pushing assembly is installed on the centering guide assembly, the positioning platform is located at the output end of the pushing assembly, and a pressing assembly is installed on the positioning splint 305, and the pressing assembly is located between the positioning platform and the pushing assembly.

[0028] The centering guide assembly includes a guide rod 401, which passes through two guide blocks 304 and is slidably connected to the guide blocks 304. The two ends of the guide rod 401 are fixedly connected with a slide seat 402. The top of the workbench 1 is provided with a first T-slot 101 and a second T-slot 102. The slide seat 402 is slidably connected to the workbench 1 through the second T-slot 102. The movable seat 302 is slidably connected to the workbench 1 through the first T-slot 101. When the front and rear positions of the movable seat 302 are changed, the guide blocks 304 are driven by the connecting rod 303. 04 moves, so that the two guide blocks 304 slide along the axial direction of the guide rod 401, and the movement directions of the two guide blocks 304 are opposite. At the same time, due to the change in the distance between the fixed seat 301 and the movable seat 302, the guide rod 401 will also move back and forth, and the guide rod 401 is always located in the middle of the fixed seat 301 and the movable seat 302. Steel balls are movably embedded in the bottom of the movable seat 302 and the sliding seat 402. The steel balls can reduce friction and make the movable seat 302 and the sliding seat 402 move more smoothly.

[0029] The power assembly includes a motor 501, which is connected to the top of the workbench 1 by screws. The output shaft of the motor 501 is connected to a screw rod 502 through a coupling. The screw rod 502 passes through the fixed seat 301 and the movable seat 302. The screw rod 502 is rotatably connected to the fixed seat 301. The screw rod 502 is threadedly connected to the movable seat 302. The motor 501 drives the screw rod 502 to rotate, and the screw rod 502 drives the movable seat 302 to move forward and backward, thereby changing the front and rear position of the movable seat 302. The end of the screw rod 502 away from the motor 501 is connected to a support 503 through a bearing, and the support 503 is connected to the top of the workbench 1 by screws.

[0030] The rear side surface of the horizontal side of the positioning baffle 203 is aligned with the rear side surface of the fixed seat 301, and the front side surface of the positioning clamp 305 is aligned with the front side surface of the movable seat 302, that is, the distance between the horizontal sides of the positioning clamp 305 and the positioning baffle 203 is equal to the distance between the fixed seat 301 and the movable seat 302. When the positioning clamp 305 and the positioning baffle 203 clamp the battery, the distance between the fixed seat 301 and the movable seat 302 is the width of the battery.

[0031] The pushing assembly includes a connecting block 701, which is fixedly connected to the middle of the guide rod 401. The top of the connecting block 701 is fixedly connected to a support plate 702. The top of the support plate 702 is connected to a press cylinder 703 via screws. The output shaft of the press cylinder 703 is fixedly connected to a push plate 704.

[0032] The press-fitting assembly includes a mounting plate 601, which is fixedly connected to a slide seat 402 close to the positioning platform, that is, the press-fitting assembly moves together with the slide seat 402 to keep the relative position of the press-fitting assembly and the press-fitting cylinder 703 unchanged. A slide groove 602 is provided on the top of the mounting plate 601, and the mounting plate 601 is slidably connected to a slide plate 603 through the slide groove 602. A pressing plate 604 is fixedly connected to one side of the slide plate 603 close to the positioning platform, and a pole avoidance groove 605 is provided in the pressing plate 604.

[0033] Working principle: When in use, place the battery on the placement plate 202, place the side of the battery to be pressed onto the cover plate facing the pressing plate 604, and place the front and right sides of the battery against the positioning baffle 203. The motor 501 drives the screw rod 502 to rotate, and the screw rod 502 drives the positioning clamping plate 305 to move forward, so that the positioning clamping plate 305 contacts the rear side of the battery, so that the positioning clamping plate 305 and the positioning baffle 203 clamp the battery. At this time, the distance between the fixed seat 301 and the movable seat 302 is the same as the width of the battery.

[0034] When the movable seat 302 moves forward, the two corresponding connecting rods 303 at the front and rear gradually close together, and the two guide blocks 304 move away from each other along the axial direction of the guide rod 401. Since the fixed seat 301 is fixed, when the movable seat 302 moves forward, the guide rod 401 also moves forward, and the guide rod 401 drives the connecting block 701, the support plate 702, and the press cylinder 703 to move forward together. Moreover, since the guide rod 401 is always located in the middle of the fixed seat 301 and the movable seat 302, the press cylinder 703 is also always located in the middle of the fixed seat 301 and the movable seat 302. Therefore, for batteries of different sizes, as long as the positioning clamping plate 305 and the positioning baffle 203 clamp the battery, the press cylinder 703 is located in the middle of the battery.

[0035] When the slide 402 moves forward, it will drive the mounting plate 601 to move together. The mounting plate 601 always maintains a relative position with the pressing cylinder 703, so that the pressing plate 604 is also located in the middle of the battery, ensuring that the cover plate and the battery are subjected to balanced force during press-fitting, thereby ensuring the press-fitting effect. The pressing cylinder 703 drives the push plate 704 to move, and the push plate 704 pushes the pressing plate 604 to move through the slide plate 603, so that the pressing plate 604 presses the cover plate onto the battery.

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A battery cover press-fitting mechanism, comprising a workbench (1), wherein a positioning platform for placing batteries is provided on the top of the workbench (1), characterized in that: The top of the workbench (1) is provided with a fixed seat (301) and a movable seat (302) which are symmetrically distributed in the front and rear directions. The fixed seat (301) is fixedly connected to the workbench (1), and the movable seat (302) is slidably connected to the workbench (1) in the front and rear directions. Connecting rods (303) are hinged on both sides of the fixed seat (301) and the movable seat (302). A guide block (304) is hinged between the two connecting rods (303) corresponding to the front and rear directions. The top of the workbench (1) A centering guide assembly is provided for limiting the moving direction of the guide block (304); a positioning clamp (305) is fixedly connected to the top of the movable seat (302); a power assembly for driving the movable seat (302) to translate is installed on the top of the workbench (1); a pushing assembly is installed on the centering guide assembly; the positioning platform is located at the output end of the pushing assembly; a pressing assembly is installed on the positioning clamp (305); and the pressing assembly is located between the positioning platform and the pushing assembly.

2. A battery cover press-fitting mechanism according to claim 1, characterized in that: The centering guide assembly comprises a guide rod (401), the guide rod (401) passes through the two guide blocks (304) and is slidably connected to the guide blocks (304), the two ends of the guide rod (401) are fixedly connected with a slide seat (402), the top of the workbench (1) is provided with a first T-slot (101) and a second T-slot (102), the slide seat (402) is slidably connected to the workbench (1) through the second T-slot (102), the movable seat (302) is slidably connected to the workbench (1) through the first T-slot (101), and steel balls are movably embedded in the bottom of the movable seat (302) and the slide seat (402).

3. A battery cover press-fitting mechanism according to claim 1, characterized in that: The power assembly comprises a motor (501), the motor (501) is fixedly connected to the top of the workbench (1), the output shaft of the motor (501) is fixedly connected to a screw rod (502), the screw rod (502) passes through the fixed seat (301) and the movable seat (302), the screw rod (502) is rotatably connected to the fixed seat (301), the screw rod (502) is threadedly connected to the movable seat (302), and one end of the screw rod (502) away from the motor (501) is rotatably connected to a support (503), and the support (503) is fixedly connected to the top of the workbench (1).

4. A battery cover press-fitting mechanism according to claim 1, characterized in that: The positioning platform comprises a pillar (201), wherein the pillar (201) is fixedly connected to the top of the workbench (1), a placement plate (202) is fixedly connected to the top of the pillar (201), and an L-shaped positioning baffle (203) is fixedly connected to the top of the placement plate (202).

5. A battery cover press-fitting mechanism according to claim 2, characterized in that: The pushing assembly comprises a connecting block (701), the connecting block (701) is fixedly connected to the middle part of the guide rod (401), the top of the connecting block (701) is fixedly connected to a support plate (702), the top of the support plate (702) is fixedly connected to a press cylinder (703), and the output shaft of the press cylinder (703) is fixedly connected to a push plate (704).

6. A battery cover press-fitting mechanism according to claim 2, characterized in that: The press-fit assembly comprises a mounting plate (601), wherein the mounting plate (601) is fixedly connected to the slide seat (402) close to the positioning platform, a slide groove (602) is provided on the top of the mounting plate (601), the mounting plate (601) is slidably connected to a slide plate (603) via the slide groove (602), a pressing plate (604) is fixedly connected to one side of the slide plate (603) close to the positioning platform, and a pole avoidance groove (605) is provided in the pressing plate (604).

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