Grinding chuck for repairing superhard cutter

Abstract

The grinding chuck for repairing the superhard cutter comprises a chuck body and an O-shaped anti-collision ring, the chuck body is round, round holes are formed in the chuck body, the round holes vertically penetrate through the chuck body, the round holes are evenly formed around the center of the chuck body at intervals, stepped holes are formed in the upper portions of the round holes, and the O-shaped anti-collision ring is arranged in the stepped holes. The O-shaped anti-collision ring is located in the stepped hole, the inner diameter of the O-shaped anti-collision ring is smaller than the diameter of the round hole, and the O-shaped anti-collision ring and the stepped hole are bonded. According to the utility model, the O-shaped anti-collision ring is arranged in the circular hole, so that the collision between the blade and the chuck is avoided, and the completeness of the tool bit in the tool repairing process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of superhard tool grinding, in particular to a grinding chuck for repairing superhard tools. Background Art

[0002] Cutting tools are used in all industrial processing equipment. Due to the complexity of the production process and the cumbersome steps, a large number of unqualified products will be produced in the production process, including products with chipped edges, poor grinding, impurities, etc. Some manufacturers directly deal with or repair unqualified products at a low price. However, during the repair process, due to the collision between the blades and the contact between the cutter head and the grinding chuck tooling, the cutter head is irreversibly damaged, which completely turns the tool into waste. This not only takes up a lot of man-hours, but also indirectly increases production costs. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a grinding chuck for superhard tool repair which can avoid tool head damage during the repair process.

[0004] The purpose of the utility model is achieved through the following technical scheme: a grinding chuck for reworking superhard tools, comprising a chuck and an O-shaped anti-collision ring, the chuck is circular, a circular hole is arranged on the chuck, the circular hole passes through the chuck up and down, the circular holes are evenly spaced around the center of the chuck, the upper part of the circular hole is a stepped hole, the O-shaped anti-collision ring is located in the stepped hole, the inner diameter of the O-shaped anti-collision ring is smaller than the diameter of the circular hole, and the O-shaped anti-collision ring is bonded to the stepped hole.

[0005] Furthermore, the O-shaped anti-collision ring is made of nitrile rubber.

[0006] Furthermore, the Shore hardness of the O-shaped anti-collision ring is 60-70.

[0007] Furthermore, a gear ring is arranged on the outer circumferential surface of the chuck.

[0008] The utility model has the following advantages: there are multiple circular holes on the chuck, and the material of the circular holes is mold steel, which can be used for batch blade grinding and is not easy to wear; the chuck hole is a step type, and an O-type anti-collision ring of a certain size is bonded to the step. The existence of the O-type anti-collision ring can avoid the collision between the blade head and the chuck, thereby ensuring the integrity of the blade head during the tool repair process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the top view of the multi-hole chuck of the utility model;

[0010] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure at point A;

[0011] Figure 3 yes Figure 2 A schematic diagram of a cross-sectional structure after removing the O-shaped anti-collision ring;

[0012] Figure 4 It is a schematic diagram of the top view of the matching gear ring of the utility model;

[0013] Figure 5 This is a schematic diagram of the structure of the embodiment 1 of the utility model after the tool is assembled;

[0014] Figure 6 This is a schematic diagram of the structure of the tool after the tool is assembled in Embodiment 2 of the utility model;

[0015] Figure 7 It is a schematic diagram for comparing the effects of the present utility model.

[0016] In the figure, 1, chuck; 2, round hole; 3, stepped hole; 4, O-shaped anti-collision ring; 5, gear ring. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Embodiment 1, as Figure 1 , Figure 2 , Figure 3As shown, the RGN120400S01020 tool with the appropriate rework size, a grinding chuck for rework of superhard tools, including a chuck 1 and an O-shaped anti-collision ring 4, the chuck 1 is disc-shaped, and the material is mold steel. A plurality of circular holes 2 are opened on the chuck 1, and the circular holes 2 pass through the chuck 1 up and down. The circular holes 2 are divided into 3 layers and are evenly spaced around the center of the chuck 1. The upper part of the circular hole 2 is a stepped hole 3, and the O-shaped anti-collision ring 4 is located in the stepped hole 3. The size of the circular hole 2 is 21.5mm, and the width of the step hole is 0.5mm. The inner ring diameter of the O-shaped anti-collision ring is 20.5mm, and the outer ring diameter is 22.5㎜. The difference between the inner and outer ring diameters is 2mm. The O-shaped anti-collision ring 4 is glued to the stepped hole 3. The material of the O-shaped anti-collision ring 4 is nitrile rubber with a Shore hardness of 60-70. The tool for rework is placed in the circular hole 2, as shown in FIG. Figure 5 As shown, after the grinding chuck 1 is placed in the grinding machine, the final grinding size can be set according to the conventional grinding method.

[0021] Embodiment 2, as Figure 4 As shown, the difference from Example 1 is that the outer circumferential surface of the chuck 1 is integrally connected to the gear ring 5, and the top view of the tool after assembly is as shown in Figure 6 As shown, the grinding chuck 1 can be placed in a double-sided grinding machine, and the final grinding size can be set according to a conventional grinding method.

[0022] like Figure 7 As shown, the conventional grinding tool is compared with the grinding of the present device. The results show that the present device has a good protection effect on the tool and avoids tool damage.

[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding chuck for repairing superhard tools, characterized in that: The invention comprises a chuck (1) and an O-shaped anti-collision ring (4), wherein the chuck (1) is circular and is provided with a circular hole (2), wherein the circular hole (2) passes through the chuck (1) from top to bottom, and the circular holes (2) are evenly spaced around the center of the chuck (1), wherein the upper part of the circular hole (2) is a stepped hole (3), and the O-shaped anti-collision ring (4) is located in the stepped hole (3), wherein the inner diameter of the O-shaped anti-collision ring (4) is smaller than the diameter of the circular hole (2), and the O-shaped anti-collision ring (4) is bonded to the stepped hole (3).

2. A grinding chuck for superhard tool repair according to claim 1, characterized in that: The material of the O-shaped anti-collision ring (4) is nitrile rubber.

3. A grinding chuck for superhard tool repair according to claim 1, characterized in that: The Shore hardness of the O-shaped anti-collision ring (4) is 60-70.

4. A grinding chuck for superhard tool repair according to claim 1, characterized in that: The outer circumferential surface of the chuck (1) is provided with a gear ring (5).

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