Punching positioning clamp for large lithium battery pole piece working roll

Abstract

The utility model discloses a punching positioning clamp for a large lithium battery pole piece working roll, which comprises a bottom plate and a roller seat arranged on the bottom plate and used for positioning the outer circle of the lithium battery pole piece working roll. The roller seat comprises a front roller seat arranged on the front portion of the upper end face of the bottom plate and a rear roller seat arranged on the rear portion of the upper end face of the bottom plate, the front roller seat and the rear roller seat are each provided with a pair of rollers, and one side of the bottom plate is provided with an inclined hole alignment base face used for machining an inclined hole in a lithium battery pole piece working roller. The inclined hole alignment base surface is vertically arranged relative to the theoretical axis of the inclined hole in the lithium battery pole piece working roll; a brake support used for preventing the lithium battery pole piece working roller from rotating after the lithium battery pole piece working roller is positioned is further fixed on the roller seat, and a jacking screw used for jacking the roller is arranged on the brake support. The lithium battery pole piece working roller punching device improves the production efficiency of punching operation of the lithium battery pole piece working roller.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill processing equipment technology, specifically to a punching and positioning fixture for a large lithium battery electrode working roll. Background Technology

[0002] like Figure 5 The image shows a lithium battery electrode working roller. The middle section of the roller body has several axial through holes and several oblique holes, all spaced circumferentially. The machining of both the axial through holes and oblique holes is performed on a boring machine. The conventional machining method for the axial through holes and oblique holes on this lithium battery electrode working roller involves using a V-block for positioning on the boring machine's worktable, followed by pressing with a large pressure plate before drilling. The drawback of this method is:

[0003] First, aligning the V-block is inconvenient. Before processing each batch of workpieces (lithium battery electrode work rollers), a lot of time must be spent aligning the position of the V-block. The first alignment is required when machining axial through holes, where the positioning surface of the V-block needs to be aligned parallel to the spindle of the boring machine. The second alignment is required when machining oblique holes, where the positioning surface of the V-block needs to be aligned to form an angle with the axis of the boring machine spindle.

[0004] Secondly, workpiece clamping is time-consuming and labor-intensive. Each time an oblique hole is machined, the large pressure plate needs to be loosened, the lithium battery electrode working roller needs to be rotated through a circumferential angle, and then the large pressure plate needs to be used again to tighten it before drilling. This results in a long auxiliary clamping time, and the rotation is labor-intensive. It is also easy to cause damage to the outer circle of the roller surface during rotation.

[0005] Therefore, it is necessary to improve the existing perforation technology of lithium battery electrode working rollers to address the above-mentioned problems. Utility Model Content

[0006] To address the aforementioned problems, this utility model proposes a drilling and positioning fixture for a large lithium battery electrode working roller, aiming to facilitate the alignment and positioning of the lithium battery electrode working roller and improve the production efficiency of the drilling operation. The specific technical solution is as follows:

[0007] A drilling and positioning fixture for a large lithium battery electrode working roller includes a base plate and roller seats disposed on the base plate for positioning the outer circle of the lithium battery electrode working roller. The roller seats include a front roller seat disposed at the front of the upper surface of the base plate and a rear roller seat disposed at the rear of the upper surface of the base plate. A pair of rollers are respectively disposed on the front roller seat and the rear roller seat. A slant hole alignment base surface for machining slant holes on the lithium battery electrode working roller is disposed on one side of the base plate. The slant hole alignment base surface is perpendicular to the theoretical axis of the slant hole on the lithium battery electrode working roller. A brake support is also fixed on the roller seat for preventing the lithium battery electrode working roller from rotating after positioning. The brake support is provided with a tightening screw for pressing against the roller.

[0008] When installing the drilling positioning fixture, fix a dial indicator on the boring machine spindle. Use the boring machine's lateral movement to align it with the alignment base surface of the inclined hole. This ensures that the boring machine spindle axis is parallel to the axis of the inclined hole. After alignment, fix the drilling positioning fixture on the boring machine's worktable, and the inclined hole can be machined. After machining one inclined hole, loosen the tightening screw and rotate the lithium battery electrode working roller on the roller seat by an angle to machine the next inclined hole.

[0009] Preferably, the front end of the tightening screw is provided with a copper tightening head for contacting the roller when tightening the roller.

[0010] Preferably, the brake support is a U-shaped brake support, and the roller is located in the U-shaped groove of the U-shaped brake support.

[0011] Preferably, the U-shaped brake support is fixed to the roller seat by welding.

[0012] As a further improvement of this utility model, the roller is a friction-enhancing composite roller, which includes a rigid roller shaft, a rigid positioning disk fixedly disposed on the outer circle of the rigid roller shaft, and an elastic friction disk disposed on the outer circle of the rigid roller shaft. The outer circle of the elastic friction disk is larger than the outer circle of the rigid positioning disk. After the outer circle of the lithium battery electrode working roller is positioned on the friction-enhancing composite roller, it simultaneously contacts the rigid positioning disk and the elastic friction disk.

[0013] Preferably, the elastic friction disc is a rubber elastic friction disc.

[0014] Preferably, the rubber elastic friction disc is a friction-enhanced modified rubber elastic friction disc.

[0015] In this invention, the copper tightening head of the tightening screw is tightened against the outer circle of the rigid positioning plate.

[0016] Preferably, the number of rubber elastic friction discs is a pair, and the pair of rubber elastic friction discs are placed on both sides of the rigid positioning disc and fixedly connected to the rigid positioning disc by fastening screws.

[0017] As a further improvement, the punching and positioning fixture for a large lithium battery electrode working roller of this utility model also includes a rectangular rotary table set on the boring machine worktable, and the base plate is fixed on the rectangular rotary table of the boring machine worktable.

[0018] In this invention, one side of the base plate is also provided with a shaft hole alignment base surface for processing the axial through hole on the lithium battery electrode working roller. The shaft hole alignment base surface is perpendicular to the theoretical axis of the axial through hole on the lithium battery electrode working roller.

[0019] In this invention, a transmission key is provided between the rigid positioning disc and the rigid roller.

[0020] In this utility model, the rigid roller is rotatably mounted in the bearing hole of the roller seat via a bearing, and bearing end caps are fixedly mounted on the roller seat at the bearing hole openings at both ends of the rigid roller.

[0021] The beneficial effects of this utility model are:

[0022] First, the present invention provides a drilling and positioning fixture for a large lithium battery electrode work roller. The base plate is provided with a datum surface for processing the inclined holes and axial through holes on the lithium battery electrode work roller. The position of the drilling and positioning fixture can be quickly aligned by the transverse movement of the boring machine perpendicular to the spindle, thereby facilitating the alignment and positioning of the lithium battery electrode work roller and improving the production efficiency of the drilling operation of the lithium battery electrode work roller.

[0023] Secondly, the punching and positioning fixture for a large lithium battery electrode work roller of this utility model uses a roller seat for positioning the large lithium battery electrode work roller, which greatly facilitates the rotation of the lithium battery electrode work roller. The roller adopts a specially designed friction-enhancing composite roller. Under the action of its own weight, the large lithium battery electrode work roller can simultaneously contact the rigid positioning plate and the elastic friction plate in the friction-enhancing composite roller. The rigid positioning plate is used to achieve precise positioning of the lithium battery electrode work roller, and the elastic friction plate is used to increase the static friction between the lithium battery electrode work roller and the elastic friction plate of the friction-enhancing composite roller. When the roller is tightened by the tightening screw, a large static friction will be generated between the roller surface of the large lithium battery electrode work roller and the elastic friction plate of the friction-enhancing composite roller. The workpiece (large lithium battery electrode work roller) will not move during punching, so there is no need to use a large pressure plate to fix the workpiece, thereby further improving the production efficiency of the lithium battery electrode work roller punching operation.

[0024] Third, the present invention provides a drilling and positioning fixture for a large lithium battery electrode working roller, which is equipped with a rectangular rotary table, enabling rapid conversion between axial through-hole processing and oblique hole processing on the lithium battery electrode working roller, thereby further improving the production efficiency of drilling operations on the lithium battery electrode working roller. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a punching and positioning fixture for a large lithium battery electrode working roller according to this utility model.

[0026] Figure 2 yes Figure 1 A magnified view of a portion of the document;

[0027] Figure 3 yes Figure 1 AA view;

[0028] Figure 4 yes Figure 3 A magnified view of a portion of the document;

[0029] Figure 5 This is a schematic diagram of the structure of the working roller for lithium battery electrodes.

[0030] In the diagram: 1. Lithium battery electrode working roller; 2. Base plate; 3. Front roller seat; 4. Rear roller seat; 5. Roller; 6. Slanted hole alignment base; 7. Brake support; 8. Tightening screw; 9. Copper tightening head; 10. U-groove; 11. Rigid roller; 12. Rigid positioning plate; 13. Elastic friction plate; 14. Fastening screw; 15. Rectangular rotary table; 16. Shaft hole alignment base; 17. Axial through hole; 18. Slanted hole; 19. Bearing; 20. Bearing end cover; 21. Transmission key. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0032] like Figures 1 to 5The illustration shows an embodiment of a drilling and positioning fixture for a large lithium battery electrode working roller 1 according to the present invention. It includes a base plate 2 and roller seats mounted on the base plate 2 for positioning the outer circle of the lithium battery electrode working roller 1. The roller seats include a front roller seat 3 located at the front of the upper end face of the base plate 2 and a rear roller seat 4 located at the rear of the upper end face of the base plate 2. A pair of rollers 5 are respectively mounted on the front roller seat 3 and the rear roller seat 4. A datum surface 6 for machining the slanted holes 18 on the lithium battery electrode working roller 1 is provided on one side of the base plate 2. The datum surface 6 is perpendicular to the theoretical axis of the slanted holes 18 on the lithium battery electrode working roller 1. A brake support 7 is also fixed on the roller seats to prevent the lithium battery electrode working roller 1 from rotating after positioning. A tightening screw 8 is provided on the brake support 7 to hold the rollers 5 in place.

[0033] When installing the drilling positioning fixture, fix a dial indicator on the spindle of the boring machine. Use the lateral movement of the boring machine to align it with the parallelism of the inclined hole alignment base 6. This ensures that the axis of the boring machine spindle is parallel to the axis of the inclined hole 18. After alignment, fix the drilling positioning fixture on the boring machine worktable, and then proceed with the machining of the inclined hole 18. After machining one inclined hole 18, loosen the tightening screw 8, rotate the lithium battery electrode working roller 1 through an angle on the roller seat, and then proceed with the machining of the next inclined hole 18.

[0034] Preferably, the front end of the tightening screw 8 is provided with a copper tightening head 9 for contacting the roller 5 when tightening it by welding.

[0035] Preferably, the brake support 7 is a U-shaped brake support, and the roller 5 is located in the U-shaped groove 10 of the U-shaped brake support 7.

[0036] Preferably, the U-shaped brake support 7 is fixed to the roller seat by welding.

[0037] As a further improvement of this embodiment, the roller 5 is a friction-enhancing composite roller, which includes a rigid roller 11, a rigid positioning disk 12 fixedly disposed on the outer circle of the rigid roller 11, and an elastic friction disk 13 disposed on the outer circle of the rigid roller 11. The outer circle of the elastic friction disk 13 is larger than the outer circle of the rigid positioning disk 12. After the outer circle of the lithium battery electrode working roller 1 is positioned on the friction-enhancing composite roller 5, it simultaneously contacts the rigid positioning disk 12 and the elastic friction disk 13.

[0038] Preferably, the elastic friction disc 13 is a rubber elastic friction disc.

[0039] Preferably, the rubber elastic friction disc 13 is a friction-enhanced modified rubber elastic friction disc.

[0040] In this embodiment, the copper clamping head 9 of the clamping screw 8 is clamped against the outer circle of the rigid positioning plate 12.

[0041] Preferably, the number of the rubber elastic friction discs 13 is a pair, and the pair of rubber elastic friction discs 13 are placed on both sides of the rigid positioning disc 12 and fixedly connected to the rigid positioning disc 12 by fastening screws 14.

[0042] As a further improvement, the drilling and positioning fixture for a large lithium battery electrode working roller in this embodiment also includes a rectangular rotary table 15 set on the boring machine worktable, and the base plate 2 is fixed on the rectangular rotary table 15 of the boring machine worktable.

[0043] In this embodiment, a shaft hole alignment base surface 16 for processing the axial through hole 17 on the lithium battery electrode working roller 1 is also provided on one side of the base plate 2. The shaft hole alignment base surface 16 is perpendicular to the theoretical axis of the axial through hole 17 on the lithium battery electrode working roller 1.

[0044] In this invention, a transmission key 21 is provided between the rigid positioning disk 12 and the rigid roller 11.

[0045] In this utility model, the rigid roller 11 is rotatably disposed in the bearing hole of the roller seat via the bearing 19, and bearing end caps 20 are fixedly disposed on the roller seat at the bearing hole openings at both ends of the rigid roller 11.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A punching and positioning fixture for a large lithium battery electrode working roller, characterized in that, The system includes a base plate and roller seats disposed on the base plate for positioning the outer diameter of a lithium battery electrode working roller. The roller seats include a front roller seat disposed at the front of the upper surface of the base plate and a rear roller seat disposed at the rear of the upper surface of the base plate. A pair of rollers are respectively disposed on the front roller seat and the rear roller seat. One side of the base plate is provided with an inclined hole alignment base surface for machining inclined holes on the lithium battery electrode working roller. The inclined hole alignment base surface is perpendicular to the theoretical axis of the inclined hole on the lithium battery electrode working roller. A brake support is also fixed on the roller seat to prevent the lithium battery electrode working roller from rotating after it is positioned. The brake support is provided with a tightening screw for pressing against the roller.

2. The punching and positioning fixture for a large lithium battery electrode working roller according to claim 1, characterized in that, The front end of the tightening screw is provided with a copper tightening head, which is welded to the roller when tightening it.

3. The punching and positioning fixture for a large lithium battery electrode working roller according to claim 1, characterized in that, The brake support is a U-shaped brake support, and the roller is located in the U-shaped groove of the U-shaped brake support.

4. The punching and positioning fixture for a large lithium battery electrode working roller according to claim 3, characterized in that, The U-shaped brake support is fixed to the roller seat by welding.

5. The punching and positioning fixture for a large lithium battery electrode working roller according to claim 1, characterized in that, The roller is a friction-enhancing composite roller, which includes a rigid roller shaft, a rigid positioning disk fixedly disposed on the outer circle of the rigid roller shaft, and an elastic friction disk disposed on the outer circle of the rigid roller shaft. The outer circle of the elastic friction disk is larger than the outer circle of the rigid positioning disk. After the outer circle of the lithium battery electrode working roller is positioned on the friction-enhancing composite roller, it simultaneously contacts the rigid positioning disk and the elastic friction disk.

6. The punching and positioning fixture for a large lithium battery electrode working roller according to claim 5, characterized in that, The elastic friction disc is a rubber elastic friction disc.

7. The punching and positioning fixture for a large lithium battery electrode working roller according to claim 5, characterized in that, The copper clamping head of the clamping screw is pressed against the outer circle of the rigid positioning plate.

8. The punching and positioning fixture for a large lithium battery electrode working roller according to claim 6, characterized in that, The number of rubber elastic friction discs is one pair, and the pair of rubber elastic friction discs are placed on both sides of the rigid positioning disc and fixedly connected to the rigid positioning disc by fastening screws.

9. A punching and positioning fixture for a large lithium battery electrode working roller according to claim 1, characterized in that, It also includes a rectangular rotary table set on the boring machine worktable, and the base plate is fixed on the rectangular rotary table of the boring machine worktable.

10. A punching and positioning fixture for a large lithium battery electrode working roller according to claim 1, characterized in that, One side of the base plate is also provided with a shaft hole alignment base surface for processing the axial through hole on the lithium battery electrode work roller. The shaft hole alignment base surface is set perpendicular to the theoretical axis of the axial through hole on the lithium battery electrode work roller.

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