Multi-step, multi-taper and large-area inner hole grinding tool

Abstract

The utility model relates to a multi-step, multi-taper and large-area inner hole grinding tool which comprises a transition section, a machining section and a clamping section, the machining section is arranged between the transition section and the clamping section, the machining section is a conical surface, and the surface of the machining section is covered with a carborundum layer; according to the multi-step, multi-taper and large-area inner hole grinding tool, structural steel is used as a base material, a carborundum layer is sprayed or sintered on the surface of the base material, and carborundum with high hardness and high abrasion resistance is used for grinding a multi-step, multi-taper and large-area inner hole workpiece. According to the multi-step, multi-taper and large-area inner hole grinding tool, the abrasive resistance, durability and dimensional precision stability of the grinding tool are improved, the manual operation difficulty is reduced, meanwhile, a plurality of chip grooves and cooling grooves are designed in the surface of the grinding tool, it is guaranteed that falling waste is discharged and heat is dissipated when a carborundum layer and a metal surface are ground, and the grinding efficiency is improved. The granularity of the carborundum is determined according to the roughness of the surface of a ground material, the surface roughness requirement is high, and the granularity of the carborundum is finer.

Description

Technical Field

[0001] The utility model belongs to the technical field of precision grinding related equipment, and specifically relates to a multi-step, multi-taper, large-area inner hole grinding tool. Background Art

[0002] Precision grinding technology is commonly used in the machinery industry, mold manufacturing industry, etc. Its basic operating skills are to use sandpaper, grinding paste, grinding powder, etc. through a certain liquid or viscous body, and mix them into a certain viscosity. It is used for surface grinding and polishing in optics, precision grinding and polishing of shaft-hole matching pairs, plane motion pairs, valve sealing pairs, etc. in the machinery industry. In the mold, it should be used for grinding and polishing the inner surface of the mold cavity, etc., and it is used in surface polishing and grinding in the jewelry industry, grinding and polishing in the wood carving industry, etc., all of which use grinding technology.

[0003] At present, the inner hole grinding process mainly uses grinding tools made of various materials to grind the inner holes of metal materials, non-metallic materials, stone, ceramics, etc. Commonly used grinding tools are made of cast iron or relatively hard wood to grind the inner holes of steps or cones. When grinding between the grinding paste and the grinded object, cast iron grinding rods or hard wood grinding tools must be ground, resulting in a synchronous reduction in size, and the size of the grinding tool is not easy to ensure stability. It is not conducive to the stability of the dimensional accuracy of the ground product. In addition, the material consumption of the grinding tool is relatively large, the cost is relatively high, and the manual operation is relatively difficult.

[0004] At present, the common precision grinding method in the industry is mainly manual operation. Grinding tools made of various materials are not very wear-resistant, so the production cost of grinding tools is increased. The accuracy of the grinding size is not easy to master. Especially for the grinding of multi-step, multi-conical holes, and large-area inner hole surfaces, the difficulty is greatly increased. The manual operation technique is not easy to master. Although the cast iron rod commonly used in the machinery industry is not easy to deform, it is easy to be worn because of its relatively soft material and non-wear-resistant, resulting in reduced dimensional accuracy and increased The cost of making grinding tools. Grinding rods with multiple steps, multiple conical holes, and large areas are more difficult and expensive to make. Summary of the invention

[0005] In order to solve the grinding technical requirements of the coaxial inner hole with multiple conical steps and large conical inner hole.

[0006] The utility model provides a multi-step, multi-taper, large-area inner hole grinding tool, comprising a transition section, a processing section, and a clamping section. The processing section is arranged between the transition section and the clamping section, the processing section is a conical surface, and the surface of the processing section is covered with a diamond abrasive layer.

[0007] Furthermore, the processing section is provided with a plurality of inclined grooves.

[0008] Furthermore, the processing section is composed of a plurality of conical surface sections.

[0009] Furthermore, the inclined angle α between the inclined groove and the radial direction of the processing section is 10° to 85° or -10° to -85°.

[0010] Furthermore, the ratio of the spacing dimension of the inclined groove to the width dimension of the conical surface is 1:2 to 1:8.

[0011] Furthermore, the ratio of the width of the inclined groove to the depth of the inclined groove is 10:3 to 20:7.

[0012] Beneficial effects of the utility model: the multi-step, multi-taper, large-area inner hole grinding tool provided by the utility model uses structural steel as a substrate and sprays or sinters corundum on its surface, and uses high-hardness, high-wear-resistant corundum to grind multi-step, multi-taper, large-area inner holes. The wear resistance, durability, stability of dimensional accuracy of the grinding tool are improved, and the difficulty of manual operation is reduced. At the same time, multiple chip grooves and cooling grooves are designed on its surface to ensure that the waste dropped during the grinding of corundum and the metal surface is discharged and the heat is dissipated. The particle size of corundum is determined according to the roughness of the surface of the ground material. The higher the surface roughness requirement, the finer the particle size of the corundum.

[0013] The present invention will be further described in detail below in conjunction with the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of multi-step, multi-taper, large-area inner hole grinding tool Figure 1 .

[0015] Figure 2 Schematic diagram of multi-step, multi-taper, large-area inner hole grinding tool Figure 2 .

[0016] Figure 3 Schematic diagram of multi-step, multi-taper, large-area inner hole grinding tool Figure 3 .

[0017] In the figure: 1, transition section; 2, processing section; 3, clamping section; 4, inclined groove; 5, diamond abrasive layer. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods, structural features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "aligned", "overlap", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0022] Example 1

[0023] This embodiment provides a Figure 1 to Figure 3 The multi-step, multi-taper, large-area inner hole grinding tool shown in the figure includes a transition section 1, a processing section 2, and a clamping section 3. The transition section 1, the processing section 2, and the clamping section 3 are all made of steel. The material cost of the steel structure is relatively low. After processing, a certain heat treatment is performed to ensure the stability of the internal material and the dimensional stability. The processing section 2 is arranged between the transition section 1 and the clamping section 3. The processing section 2 is a cone surface. The surface of the processing section 2 is covered with a diamond layer 5, and the coverage rate of the diamond layer 5 is above 95%. The role of the diamond layer 5 is: one is to use its hardness to grind the workpiece to be processed and ground. In addition, the wear resistance of the diamond is used to improve the wear resistance and dimensional accuracy of the grinding tool. In addition, the corresponding inclined groove 4 is designed according to the grinding powder and heat generated during grinding, which is convenient for the accumulation and removal of the grinding powder. The surface area can be increased, thereby increasing the heat dissipation area, reducing heat dissipation and the biting and biting of the ground body. During the grinding process, cooling and lubrication are guaranteed to reduce the side effects of the biting between the grinding sand and the large-area ground body.

[0024] Furthermore, the processing section 2 is provided with a plurality of inclined grooves 4, which have the functions of chip removal and cooling to ensure that the ground powder is easily discharged and to increase the discharge capacity of the coolant.

[0025] Furthermore, the ratio of the spacing dimension of the inclined groove 4 to the width dimension of the conical surface is 1:2 to 1:8; the ratio of the width of the inclined groove 4 to the depth of the inclined groove 4 is 10:3 to 20:7.

[0026] Furthermore, the radial inclination angle α between the inclined groove 4 and the processing section 2 is 10° to 85° or -10° to -85°; the width of the inclined groove 4 is 5 mm; the interval of the inclined groove 4 is 10 mm; and the depth of the inclined groove 4 is 2 mm.

[0027] Furthermore, the processing section 2 is composed of a plurality of conical surface sections, which improve the large-area multi-step conical surface inner hole product, and the huge friction generated during grinding. The present embodiment is designed as a segmented diamond grinding tool. Preferably, the number of conical surfaces is 1 to 20, and the angle range of the conical surface is 0° to 120°; Figure 2 As shown, the processing section 2 is a 3-step cone surface. From left to right, the first cone surface is classified as one category, the second cone surface is classified as the inner surface of the large-area cone hole, and the third cone surface is classified as a whole for precision grinding. Three sections and three categories can reduce the defects of huge torque, friction and friction heating generated during large-area grinding; the inclined groove 4 set on the processing section 2 has an inclined angle α of 30° with the radial direction of the processing section 2, and the processing section 2 is provided with transition sections 1 at both ends, and the right end of the right transition section 1 is provided with a clamping section 3.

[0028] Further, such as Figure 1 As shown, the processing section 2 is a conical surface with one step; the inclined groove 4 provided on the processing section 2 has an inclination angle α of 30° with the radial direction of the processing section 2, the diameter of the left end of the processing section 2 is 37.90 mm, the diameter of the right end of the processing section 2 is 40 mm, the length of the processing section 2 is 124 mm, and the processing section 2 is a very gentle conical surface.

[0029] Further, such as Figure 3 As shown, the processing section 2 is a conical surface with four steps; the inclined groove 4 provided on the processing section 2 and the radial inclination angle α of the processing section 2 are 15°.

[0030] In summary, the multi-step, multi-taper, large-area inner hole grinding tool provided in this embodiment uses structural steel as a substrate and sprays or sinters corundum on its surface, and uses high-hardness, high-wear-resistant corundum to grind multi-step, multi-taper, large-area inner holes. The wear resistance, durability, stability of dimensional accuracy of the grinding tool are improved, and the difficulty of manual operation is reduced. At the same time, multiple chip removal grooves and cooling grooves are designed on its surface to ensure that the waste dropped during the grinding of corundum and the metal surface is discharged and the heat is dissipated. The particle size of the corundum is determined according to the roughness of the surface of the ground material. The higher the surface roughness requirement, the finer the particle size of the corundum.

[0031] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A multi-step, multi-taper, large-area inner hole grinding tool, characterized by: The invention comprises a transition section (1), a processing section (2) and a clamping section (3); the processing section (2) is arranged between the transition section (1) and the clamping section (3); the processing section (2) is a conical surface; and the surface of the processing section (2) is covered with a diamond abrasive layer (5).

2. A multi-step, multi-taper, large-area inner hole grinding tool as claimed in claim 1, characterized in that: The processing section (2) is provided with a plurality of inclined grooves (4).

3. A multi-step, multi-taper, large-area inner hole grinding tool as claimed in claim 1, characterized in that: The processing section (2) is composed of a plurality of conical surface sections.

4. A multi-step, multi-taper, large-area inner hole grinding tool as claimed in claim 2, characterized in that: The radial inclination angle α between the inclined groove (4) and the processing section (2) is 10° to 85° or -10° to -85°.

5. A multi-step, multi-taper, large-area inner hole grinding tool as claimed in claim 2, characterized in that: The ratio of the spacing dimension of the inclined grooves (4) to the width dimension of the conical surface is 1:2 to 1:

8.

6. A multi-step, multi-taper, large-area inner hole grinding tool as claimed in claim 2, characterized in that: The ratio of the width of the inclined groove (4) to the depth of the inclined groove (4) is 10:3 to 20:7.

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