Opening and closing clamping mechanism and plate group clamping unit applying same

Abstract

The utility model provides an opening and closing clamping mechanism and a pole group clamping unit using the same. The opening and closing clamping mechanism comprises a clamping driving part and a clamping part, the upper end part of the connecting rod mechanism is connected with the clamping driving part, and the connecting rod mechanism is provided with two lower end parts which are symmetrically hinged to the rack; the clamping mechanism is provided with two clamping hands which are symmetrically arranged, the two clamping hands are respectively connected with the two lower end parts of the connecting rod mechanism, pressing blocks are arranged at the upper ends of the clamping surfaces of the clamping hands, and the two pressing blocks extrude tabs at the two ends of the pole group to the middle when the pole group is clamped; the connecting rod mechanism drives the two clamping hands of the clamping mechanism to rotate and open to form a splayed shape, the opening is large, edge wiping abrasion is avoided, a pole group is protected, the clamping force is sufficient, the pressing block is arranged to pinch, bend and concentrate the pole lugs towards the middle, effective cast welding of all the follow-up pole lugs is guaranteed, and the problems that in the prior art, the opening of the clamping mechanism is limited, and the working efficiency is high are solved. The technical problems that in the clamping process, edge wiping abrasion of the pole plate is prone to being caused, and the function of arranging the pole lug is not achieved are solved.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to an opening and closing clamping mechanism and a pole group clamping unit using the same. Background Technology

[0002] Lead-acid batteries, with their advantages of low price, low manufacturing cost, large capacity, simple process, reliable performance, and strong adaptability, have become one of the most widely used chemical batteries. Lead-acid battery assembly production includes multiple processes such as weighing and matching plates, packing separators, welding electrode groups, placing electrode groups into tanks, and plate testing. During battery assembly, mechanical grippers are needed to handle the loading of electrode groups.

[0003] Chinese patent CN202110445457.3 discloses an automatic tank filling machine with an electrode group transfer mechanism, including a feeding device and a tank filling machine body. The feeding device includes a machine head, an electrode group transfer device, an electrode group transverse conveying mechanism, and an electrode group tank filling conveying mechanism. The machine head and the electrode group transfer device are distributed along the conveying direction of the electrode group transverse conveying mechanism, and both are located below the electrode group transverse conveying mechanism. The electrode group transfer device and the tank filling machine body are distributed along the conveying direction of the electrode group tank filling conveying mechanism, and one end of the electrode group tank filling conveying mechanism is located at the electrode group transfer device. Above the device, the other end of the electrode group loading and conveying mechanism is located inside the loading machine body. The machine head is provided with several placement slots. The electrode group transfer device is provided with several electrode group inserts evenly distributed along a straight line and two ear-forming assemblies. The two ear-forming assemblies are symmetrically distributed on the left and right sides with the several electrode group inserts as the center. One end of the finger cylinder two in the electrode group loading and conveying mechanism is detachably connected to the mounting plate three. The other end of the finger cylinder two is the clamping end two. The clamping end two is provided with two gripper pieces. The two gripper pieces are distributed along the length direction of the mounting plate three. The electrode group is clamped by the two gripper pieces.

[0004] However, conventional clamping mechanisms in existing technologies have limited openings, which can easily cause wear and tear on the electrode plates during clamping, and they do not have the function of tidying up the electrode tabs. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing an opening and closing clamping mechanism and an electrode group clamping unit using the same. The mechanism uses a linkage to drive the two clamping hands of the clamping mechanism to rotate and open into a figure-eight shape, resulting in a large opening that prevents edge wear and protects the electrode group, while also providing sufficient clamping force. Furthermore, a pressing electrode lug structure is incorporated to simultaneously clamp the electrode plate and bend the lugs towards the center for concentration, ensuring effective subsequent welding of all the lugs. This solves the technical problems of existing conventional clamping mechanisms, such as limited opening, easy edge wear on the electrode plate during clamping, and lack of lug adjustment functionality.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An opening and closing clamping mechanism includes: a clamping drive unit mounted on a frame; a linkage mechanism, the upper end of which is connected to the clamping drive unit, the linkage mechanism having two symmetrically hinged lower ends to the frame; and a clamping mechanism having two symmetrically arranged grippers, the two grippers being respectively connected to the two lower ends of the linkage mechanism, the clamping mechanism being driven by the linkage mechanism to rotate open or close.

[0008] Preferably, the linkage mechanism includes: a connecting part connected to the driving end of the clamping drive part; two first links symmetrically hinged at the left and right ends of the connecting part; and two second links, the free ends of the two first links respectively hinged to one second link, and the free ends of the two second links symmetrically hinged to the frame.

[0009] Preferably, the lower end of the linkage mechanism is the bottom free end of the second link, and the gripper is connected to the lower part of the free end of the second link that is hinged to the frame.

[0010] Preferably, a guide wheel is provided at the rear of the connecting part, and a guide groove is vertically provided on the frame, with the guide wheel confined within the guide groove.

[0011] Preferably, the frame includes a top frame and a side frame, the clamping drive unit is mounted on the top surface of the top frame, the linkage mechanism is located below the top frame, and the drive end of the clamping drive unit extends downward through the top frame to connect with the linkage mechanism.

[0012] Preferably, the top frame and side frame are arranged in an inverted L shape.

[0013] Preferably, the side frame is provided with the guide groove.

[0014] This utility model also provides a clamping unit, including: an opening and closing clamping mechanism as described above; and a rotation drive unit, wherein the rotation drive unit is poweredly connected to the upper end of the clamping drive unit to drive the entire opening and closing clamping mechanism to rotate.

[0015] Preferably, the upper end of the gripping surface of the clamp is provided with a pressure block, and the two pressure blocks press the tabs at both ends of the electrode group towards the middle when the electrode group is clamped.

[0016] Preferably, the working surface of the pressure block used to extrude the tab is set as a slope surface, and the working surfaces of the two pressure blocks are in a figure-eight shape.

[0017] Preferably, the clamping drive unit is a cylinder, and the rotation drive unit is a rotary motor.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) The present invention drives the two grippers of the clamping mechanism to rotate and open into a figure-eight shape through the linkage mechanism. The opening is large, which avoids edge wear and protects the electrode group, and the clamping force is sufficient.

[0020] (2) By setting pressure blocks on the inner sides of the two clamps, the electrode ears are pinched and concentrated in the middle by the inclined working surface during the clamping process of the electrode group, ensuring that all electrode ears are effectively cast and welded in the future, avoiding the electrode ears on the side from being missed and falling off, and the clamping method of pinching the electrode ears can effectively prevent springback. Attached Figure Description

[0021] Figure 1 This is a front view of the first working state of this utility model;

[0022] Figure 2 This is a front view of the second working state of this utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the middle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Example 1

[0029] like Figure 1 As shown, an opening and closing clamping mechanism includes: a clamping drive unit 1, which is mounted on a frame 10; a linkage mechanism 2, the upper end of which is connected to the clamping drive unit 1, and the linkage mechanism 2 has two symmetrically hinged lower ends to the frame 10; and a clamping mechanism 3, which has two symmetrically arranged grippers 31, the two grippers 31 being respectively connected to the two lower ends of the linkage mechanism 2, and the clamping mechanism 3 being driven by the linkage mechanism 2 to rotate open or close.

[0030] In this embodiment, the two grippers 31 of the clamping mechanism 3 are rotated and opened into a figure-eight shape by the linkage mechanism 2. The opening is large, which avoids edge wear and protects the electrode group, and the clamping force is sufficient.

[0031] As a supplementary explanation, the lower end of the linkage mechanism 2 refers to the lower end position that is hinged to the frame 10, that is, the free end of the second link 23. The gripper 31 is connected to the lower part of the free end of the second link 23 that is hinged to the frame 10.

[0032] As a preferred option, such as Figure 2 As shown, the linkage mechanism 2 includes: a connecting part 21, which is connected to the driving end of the clamping drive part 1; a first link 22, two first links 22 are symmetrically hinged at the left and right ends of the connecting part 21; and a second link 23, the free ends of the two first links 22 are respectively hinged to a second link 23, and the free ends of the two second links 23 are symmetrically hinged to the frame 10.

[0033] As a preferred option, such as Figure 3 As shown, a guide wheel 24 is provided at the rear of the connecting part 21, and a guide groove 25 is vertically provided on the frame 10, with the guide wheel 24 being guided and limited within the guide groove 25.

[0034] In this embodiment, by setting guide wheels 24 and guide grooves 25, the lifting and lowering movement of the connecting part 21 is guided, making it more stable.

[0035] Preferably, the frame 10 includes a top frame 101 and a side frame 102. The clamping drive unit 1 is mounted on the top surface of the top frame 101, and the linkage mechanism 2 is located below the top frame 101. The drive end of the clamping drive unit 1 extends downward through the top frame 101 to connect with the linkage mechanism 2.

[0036] Preferably, the top frame 101 and the side frame 102 form an inverted L shape, and in some embodiments the frame 10 is preferably designed as an integral structure.

[0037] Preferably, the side frame 102 is provided with the guide groove 25 to restrict the movement of the guide wheel 24 in the guide groove 25.

[0038] Example 2

[0039] like Figure 4 As shown, this embodiment provides a clamping unit, including: an opening and closing clamping mechanism as described in the above embodiment; and a rotation drive unit 5, which is poweredly connected to the upper end of the clamping drive unit 1 to drive the entire opening and closing clamping mechanism to rotate.

[0040] As a preferred option, such as Figure 1 As shown, the clamping surface of the clamping hand 31 is provided with a pressure block 4. When the two pressure blocks 4 are clamping the electrode group, they squeeze the electrode tabs at both ends of the electrode group towards the middle.

[0041] As a preferred option, such as Figure 5 As shown, the working surface 40 of the pressure block 4 used to compress the electrode tab is set as a slope surface, and the working surfaces 40 of the two pressure blocks 4 are in the shape of an "eight".

[0042] In this embodiment, by setting pressure blocks 4 on the inner sides of the two grippers 31 opposite each other, the electrode tabs are pinched and concentrated towards the middle by the inclined working surface 40 during the clamping process of the electrode group, ensuring that all electrode tabs are effectively cast and welded in the future, avoiding the electrode tabs on the side from being missed or falling off, and the clamping method of pinching the electrode tabs can effectively prevent springback.

[0043] Preferably, the clamping drive unit 1 is a cylinder, and the rotation drive unit 5 is a rotary motor.

[0044] Work process:

[0045] The clamping drive unit 1 drives the connecting part 21 to move upward, causing the two symmetrical lower ends of the linkage mechanism 2 to rotate, which in turn drives the two grippers 31 to rotate synchronously and open in a figure-eight shape. Figure 1 As shown, after the electrode plate is placed between the two clamps 31, the clamping drive unit 1 drives the connecting part 21 to move down, so that the two clamps 31 close together to clamp the electrode group. During the clamping process, the two pressure blocks 4 pinch and bend the electrode tabs at both ends of the electrode group towards the middle. The rotation drive unit 5 drives the rotation to adjust the orientation of the electrode group as needed.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An opening and closing clamping mechanism, characterized in that, include: Clamping drive unit (1), which is mounted on frame (10); A linkage mechanism (2), the upper end of which is connected to the clamping drive unit (1), the linkage mechanism (2) having two lower ends symmetrically hinged to the frame (10); and The clamping mechanism (3) has two symmetrically arranged grippers (31), which are respectively connected to the two lower ends of the linkage mechanism (2). The clamping mechanism (3) is driven by the linkage mechanism (2) to rotate open or close.

2. The opening and closing clamping mechanism according to claim 1, characterized in that, The linkage mechanism (2) includes: A connecting part (21) is connected to the driving end of the clamping drive part (1); The first link (22) is symmetrically hinged at both ends of the connecting part (21), and two first links (22) are provided; and The free ends of the two first links (22) are respectively hinged to one of the second links (23), and the free ends of the two second links (23) are symmetrically hinged to the frame (10).

3. The opening and closing clamping mechanism according to claim 2, characterized in that, The lower end of the linkage mechanism (2) is the bottom free end of the second link (23), and the lower part of the free end of the second link (23) which is hinged to the frame (10) is connected to the gripper (31).

4. The opening and closing clamping mechanism according to claim 2, characterized in that, The rear of the connecting part (21) is provided with a guide wheel (24), and the frame (10) is provided with a vertical guide groove (25), and the guide wheel (24) is limited to the guide groove (25).

5. The opening and closing clamping mechanism according to claim 4, characterized in that, The frame (10) includes a top frame (101) and a side frame (102). The clamping drive unit (1) is installed on the top surface of the top frame (101). The linkage mechanism (2) is located below the top frame (101). The drive end of the clamping drive unit (1) extends downward through the top frame (101) to connect with the linkage mechanism (2).

6. The opening and closing clamping mechanism according to claim 5, characterized in that, The top frame (101) and the side frame (102) form an inverted L shape.

7. The opening and closing clamping mechanism according to claim 5, characterized in that, The guide groove (25) is provided on the side frame (102).

8. A pole group clamping unit, characterized in that, include: The opening and closing clamping mechanism as described in any one of claims 1-7; as well as A rotary drive unit (5) is connected to the upper end of the clamping drive unit (1) to drive the entire opening and closing clamping mechanism to rotate.

9. A pole group clamping unit according to claim 8, characterized in that, The clamping surface of the clamp (31) is provided with a pressure block (4), and the two pressure blocks (4) squeeze the electrode tabs at both ends of the electrode group towards the middle when the electrode group is clamped.

10. A pole group clamping unit according to claim 9, characterized in that, The working surface (40) of the pressure block (4) used to extrude the tab is set as a slope surface, and the working surfaces (40) of the two pressure blocks (4) are in the shape of an "eight".

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