Special tip sleeve with blind hole structure for turning pole piece roller

Abstract

The utility model discloses a special center sleeve for turning a pole piece roller with a blind hole structure, which belongs to the technical field of machining and comprises a center sleeve body with the head abutted against the blind hole of the pole piece roller and the tail used for positioning a lathe center. The head of the center sleeve body is conical, the tail of the center sleeve body is a cylinder, and a positioning hole matched with a lathe center is formed in the tail of the center sleeve body. The positioning hole is a blind hole with a tip, the tail end of the blind hole extends towards the periphery to form an opening angle, and the diameter of the tail of the center sleeve body is larger than that of the blind hole. The lathe center is convenient to use, saves time required for replacing the lathe center, and improves working efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, specifically relating to a special center sleeve for turning electrode rollers with a blind hole structure. Background Technology

[0002] The work roll of the battery electrode rolling mill (referred to as "electrode roll") is an important part of the battery electrode rolling mill.

[0003] The electrode rolls for rolling anode materials for battery electrodes, such as Figure 1 As shown, the core of the electrode roll is provided with blind holes 3. The end face grooves at both ends of the roll body 1 need to be machined with axial through holes and radial 45° oblique holes that communicate with the blind holes 3. End caps are installed at the end face grooves at both ends of the roll body 1, water pipe rotary joints are installed at the ends of the blind holes 3, and blocks are inserted into the blind holes 3. The blind holes 3 and the hole system of the electrode roll form a complete hole system structure. During rolling, heating oil is generally injected, and the roller body 1 of the electrode roll is heated by the circulation of the heating oil to meet the requirements of rolling the electrode.

[0004] The electrode rollers have very high requirements for the finished product appearance. The end faces of the roller necks (2) must be free of any bumps, scratches, or other defects upon delivery. To ensure this, a 0.5mm machining allowance is typically left on both ends of the roller necks (2) during finish turning. The blind hole (3) is usually machined after finish turning. During finish grinding, the end face of the blind hole (3) is typically fitted with a process plug, machined to the size of the center hole on the other end, and then ground to ensure the accuracy and hardness of the center hole. After completing all processes including finish grinding and boring / milling, the process plug must be removed, and the end faces of both roller necks (2) must be machined on a lathe to complete all machining processes. Finally, the rollers are engraved, packaged, and shipped.

[0005] After the electrode roller with blind hole 3 has completed all processes such as fine grinding and boring and the process plug has been removed, the blind hole 3 is too large. The conventional lathe center cannot press the blind hole 3 end face to turn the roller neck 2 end face. The conventional practice is to replace it with a larger center to press the blind hole 3 end face to turn the roller neck 2 end faces at both ends. However, the process of replacing the center is time-consuming and laborious. Utility Model Content

[0006] The purpose of this invention is to provide a special center sleeve for turning electrode rollers with a blind hole structure, which is convenient to use, saves the time required to replace lathe centers, and improves work efficiency.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A kind of pole piece roll turning special centre sleeve with blind hole structure, including head top being located at the blind hole of pole piece roll, tail part is used to position lathe centre centre sleeve body;The head of the centre sleeve body is conical, tail part is cylindrical, and tail part is provided with the positioning hole matched with lathe centre;The positioning hole is blind hole with tip, and the tail end of blind hole extends outward to form opening angle, the diameter of tail part of the centre sleeve body is greater than the diameter of blind hole.

[0009] The further improvement of the technical scheme of the utility model is that the head of the centre sleeve is provided with a ring groove.

[0010] The further improvement of the technical scheme of the utility model is that the tail part of the centre sleeve body and the opening angle end of the positioning hole are chamfered.

[0011] The further improvement of the technical scheme of the utility model is that the opening angle of the positioning hole is 75 °.

[0012] The further improvement of the technical scheme of the utility model is that the material of the centre sleeve is Cr2 alloy.

[0013] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model is that:

[0014] The head of the centre sleeve body is conical, is used to top in the blind hole of pole piece roll in use, tail part is cylindrical, is provided with the positioning hole matched with lathe centre for positioning lathe centre, the positioning hole is blind hole with tip, the tail end of blind hole extends outward to form opening angle, the diameter of tail part of the centre sleeve body is greater than the diameter of blind hole;After completing all processes such as fine grinding, boring and milling of the pole piece roll with blind hole structure and unloading process plug, when turning the neck end surface, the positioning hole of the utility model is aligned with lathe centre, the head of the centre sleeve body is top in the blind hole of pole piece roll, the fixing of the blind hole end of pole piece roll can be realized, without replacing large specification centre, the neck end surface of both ends can be turned, it is convenient to use, the time required for replacing lathe centre is saved, and the work efficiency is improved.

[0015] The head of the centre sleeve body is provided with a ring groove, which avoids the mutual interference between the turning tool and the centre sleeve body in use.

[0016] The tail part of the centre sleeve body and the opening angle end of the positioning hole are chamfered, which prevents burr from being generated and avoids cutting the user in use;Meanwhile, the setting of chamfer makes the centre sleeve body not prone to crack and deformation.

[0017] The material of the centre sleeve body 4 is Cr2 alloy, and the overall strength is high. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1This is a partial cross-sectional view of the electrode roller;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Among them, 1. Roller body; 2. Roller neck; 3. Blind hole; 4. Center sleeve body; 5. Positioning hole. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to embodiments:

[0022] like Figure 1 As shown, a special center sleeve for turning electrode rollers with a blind hole structure includes a center sleeve body 4, a positioning hole 5, an annular groove, and chamfers at the opening corners of the center sleeve body 4 and the positioning hole 5.

[0023] The head of the center sleeve body 4 is conical and is placed on top of the blind hole 3 of the electrode roller during use. The tail is cylindrical and has a positioning hole that matches the lathe center for positioning the lathe center. The positioning hole is a blind hole with a pointed tip. The tail end of the blind hole extends outward to form an opening angle. The diameter of the tail end of the center sleeve body 4 is larger than the diameter of the blind hole 3. After the electrode roller with the blind hole 3 has completed all processes such as fine grinding and boring and milling and the process plug has been removed, when turning the end face of the roller neck 2, the positioning hole of this utility model is aligned with the lathe center and the head of the center sleeve body 4 is placed on top of the blind hole 3 of the electrode roller. This can fix the end of the blind hole 3 of the electrode roller. The end face of the roller neck 2 at both ends can be turned without replacing the large-size center. It is convenient to use, saves the time required to replace the lathe center, and improves work efficiency.

[0024] In one embodiment of this utility model, the head of the center sleeve body 4 is provided with a ring groove to avoid interference between the cutting tool and the center sleeve body 4 during use.

[0025] In one embodiment of this utility model, the opening corners of the top sleeve body 4 and the positioning hole 5 are chamfered to prevent the generation of burrs and avoid cutting the user during use; at the same time, the chamfer makes the positioning sleeve body 4 less prone to cracks and deformation.

[0026] In one embodiment of this utility model, the material of the top sleeve body 4 is Cr2 alloy, which has high overall strength.

[0027] Instructions for use: After the electrode roller with blind hole 3 has completed all processes such as fine grinding and boring and removed the process plug, when turning the end face of the roller neck 2, align the positioning hole of this utility model with the lathe center and install the head of the center sleeve body 4 on the blind hole 3 of the electrode roller. This will fix the end of the blind hole 3 of the electrode roller. It can turn the end face of the roller neck 2 at both ends without replacing the large-size center. It is convenient to use, saves the time required to replace the lathe center, and improves work efficiency.

[0028] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A special center sleeve for turning electrode rollers with a blind hole structure, characterized in that: The tail part of the top set body (4) is provided with a locating hole (5) matched with the lathe top.

2. The special center sleeve for pole piece roll turning according to claim 1, characterized in that: The head part of the top set body (4) is provided with a ring groove.

3. The special center sleeve for pole piece roll turning according to claim 1, characterized in that: The opening angle end of the top set body (4) and the locating hole (5) is chamfered.

4. The special center sleeve for pole piece roll turning according to claim 1, characterized in that: The opening angle of the locating hole (5) is 75°.

5. The special center sleeve for pole piece roll turning according to claim 1, characterized in that: The material of the top set body (4) is Cr2 alloy.

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