Cap inner hole centering mechanism

Abstract

The utility model discloses a top cap inner hole centering mechanism, including frame, cylinder, push rod, jacking plate, push block, sleeve, push rod upper spring, push rod lower spring, locating block, the bottom surface fixed in the bottom of frame of cylinder body, and the piston rod rod end of cylinder is connected with jacking plate lower extreme, and push block fixed mounting is at the top surface of jacking plate, and the lower extreme of push rod is fixed at the top surface of push block, and push rod lower spring and push rod upper spring sleeve are connected on push rod, and sleeve clearance sleeve is connected on push rod top, and locating block is respectively installed in the locating groove of sleeve two or more than that. The sleeve is driven lifting by cylinder through push block, push rod upper spring, push rod lower spring, and after realizing that the jacking of locating mechanism is in place with the help of sleeve limit block, the cone of push rod top plate is in contact with the inner wall of locating block, and locating block is pushed out and is clamped in the inner wall of cap center hole, avoids the scratch of top cap when locating block vertical direction removes.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a centering mechanism for the inner hole of a top cover. Background Technology

[0002] In the battery manufacturing process, some parts need to be assembled, such as Figure 5 As shown, during assembly, the cap 100 needs to be placed into the center hole of the top cover 200. To prevent the cap 100 from rubbing against the top cover 200 during placement into the center hole 201, accurate positioning is required. Traditional equipment mostly uses the method of placing the top cover 200 into the center hole 301 of the support plate 300 (e.g., Figure 1 As shown, the positioning is done by the outer circle of the top cover 200. However, because there is a gap between the outer circle of the top cover 200 and the center hole 301 of the support plate 300, they are not concentric, resulting in inaccurate positioning. Utility Model Content

[0003] The purpose of this utility model is to provide a top cover inner hole centering mechanism that is highly applicable and has accurate positioning.

[0004] To achieve the above objectives, the technical solution of this utility model is:

[0005] This utility model is a centering mechanism for the inner hole of a top cover, including a frame, a cylinder, a push rod, a lifting plate, a push block, a sleeve, an upper spring on the push rod, a lower spring on the push rod, and two or more positioning blocks;

[0006] The bottom surface of the cylinder body is fixed to the bottom of the frame. The piston rod end of the cylinder is connected to the lower end of the lifting plate. The push block is fixedly installed on the top surface of the lifting plate. The middle part of the push rod has a shoulder. The lower end of the push rod is fixed to the top surface of the push block. The lower spring of the push rod is sleeved on the lower part of the push rod, and the two ends of the lower spring of the push rod abut against the shoulder of the push block and the middle part of the push rod, respectively. The upper spring of the push rod is sleeved on the upper part of the push rod, and the two ends of the upper spring of the push rod abut against the shoulder of the sleeve and the middle part of the push rod, respectively. The sleeve is sleeved on the top of the push rod. Two or more positioning blocks are movably installed in two or more positioning slots of the sleeve.

[0007] This utility model also includes a reset spring; the reset spring is sleeved on the outer wall of the sleeve and the inner ring of the reset spring abuts against the outer wall of the positioning block.

[0008] The top of the push rod is a cone, and the outer wall of the cone can abut against the inner wall of the positioning block so as to drive the positioning block to swing outward.

[0009] After adopting the above solution, since this utility model includes a frame, cylinder, push rod, lifting plate, push block, sleeve, upper spring of push rod, lower spring of push rod, and two or more positioning blocks, the cylinder drives the sleeve to rise and fall through the push block, upper spring of push rod, and lower spring of push rod. After the positioning mechanism is lifted into place with the help of the sleeve limiting block, the cone of the push rod top plate abuts against the inner wall of the two or more positioning blocks, and the positioning blocks are pushed out and locked on the inner wall of the center hole of the cap, so as to avoid the positioning blocks scraping the top cover when moving vertically. Since springs (upper spring of push rod and lower spring of push rod) are added between the push rod and the cylinder for buffering, it can adapt to the size error of the inner hole of the top cover and avoid the push block from damaging the top cover. Since this utility model adopts positioning through the center hole of the top cover, it has the advantages of strong applicability and accurate positioning.

[0010] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0011] Figure 1 This is a traditional top cover positioning diagram;

[0012] Figure 2 This is an isometric drawing of this utility model;

[0013] Figure 3 This is a diagram showing the state of the utility model before the top cover is in contact;

[0014] Figure 4 This is a state diagram of the contact top cover of this utility model;

[0015] Figure 5 This is a schematic diagram of the cap and top cover of this utility model. Detailed Implementation

[0016] like Figures 2-4 As shown, this utility model is a centering mechanism for the inner hole of a top cover, including a frame 1, a sleeve limiting block 2, a cylinder 3, a push rod 4, a lifting plate 5, a push block 6, a sleeve 7, an upper spring on the push rod 8, a lower spring on the push rod 9, two or more positioning blocks 10, and a reset spring 20.

[0017] The sleeve limiting block 2 for placing the top cover 200 is placed above the frame 1. The bottom surface of the cylinder body of the cylinder 3 is fixed to the bottom of the frame 1. The piston rod end of the cylinder 3 is connected to the lower end of the lifting plate 5. The push block 6 is fixedly installed on the top surface of the lifting plate 5. The middle part of the push rod 4 has a shoulder 41. The lower end of the push rod 4 is fixed to the top surface of the push block 6. The lower spring 9 of the push rod is sleeved on the lower part of the push rod 4, and the two ends of the lower spring 9 abut against the shoulder 41 of the middle part of the push block 6 and the push rod 4, respectively. The upper spring 8 of the push rod is sleeved on the push rod 4. The two ends of the spring 8 on the push rod abut against the shoulder 41 of the sleeve 7 and the middle of the push rod 4, respectively. The sleeve 7 is fitted with the top of the push rod 4 with a gap. Two or more positioning blocks 10 are movably installed in two or more positioning grooves 71 of the sleeve 7. The top of the push rod 4 is a cone 42. The outer wall of the cone 42 can abut against the inner wall of the positioning block 10 so as to drive the positioning block 10 to swing outward. The return spring 20 is sleeved on the outer wall of the sleeve 7 and the inner ring of the return spring 20 abuts against the outer wall of the positioning block 10 for the return of the positioning block 10.

[0018] The working principle of this utility model:

[0019] The clamping assembly 40 fixes the top cover 200 directly above the sleeve limiting block 2. After the sleeve limiting block 2 is lifted into place, the sleeve 7 and the positioning block 10 contact the sleeve limiting block 2 and then stop moving upward. When the push rod 4 continues to rise, the cone 42 at the top of the push rod 4 abuts against the inner wall of two or more positioning blocks 10. The positioning blocks 10 are pushed out and locked on the inner wall of the center hole of the cap 100, so as to avoid the positioning blocks 10 scraping the top cover when moving vertically. Because a spring (push rod upper spring 8 and push rod lower spring 9) is added between the push rod 4 and the cylinder 3 for buffering, it adapts to the inner hole size error of the top cover 100 and avoids the push block from damaging the top cover 100.

[0020] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model should still fall within the scope of the patent of the present utility model.

Claims

1. A centering mechanism for the inner hole of a top cover, characterized in that: Includes frame, cylinder, push rod, lifting plate, push block, sleeve, upper spring of push rod, lower spring of push rod, and two or more positioning blocks; The bottom surface of the cylinder body is fixed to the bottom of the frame. The piston rod end of the cylinder is connected to the lower end of the lifting plate. The push block is fixedly installed on the top surface of the lifting plate. The middle part of the push rod has a shoulder. The lower end of the push rod is fixed to the top surface of the push block. The lower spring of the push rod is sleeved on the lower part of the push rod, and the two ends of the lower spring of the push rod abut against the shoulder of the push block and the middle part of the push rod, respectively. The upper spring of the push rod is sleeved on the upper part of the push rod, and the two ends of the upper spring of the push rod abut against the shoulder of the sleeve and the middle part of the push rod, respectively. The sleeve is sleeved on the top of the push rod. Two or more positioning blocks are movably installed in two or more positioning slots of the sleeve.

2. The centering mechanism for the inner hole of the top cover according to claim 1, characterized in that: It also includes a return spring; the return spring is sleeved on the outer wall of the sleeve and the inner ring of the return spring abuts against the outer wall of the positioning block.

3. The centering mechanism for the inner hole of the top cover according to claim 1, characterized in that: The top of the push rod is a cone, and the outer wall of the cone can abut against the inner wall of the positioning block so as to drive the positioning block to swing outward.

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