Steel-based grinding tool for high-power machine tool
By setting up an isolation layer made of high thermal conductivity organic materials in the steel-based abrasive tools, the high heat accumulation and fire risk problems caused by low thermal conductivity of steel-based abrasive tools are solved, and the workpiece and the base are avoided directly from being able to be used to design the isolation layer. Contact achieves higher heat dissipation performance and service life.
Patent Information
- Application Number
- CN202323609813.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2033-12-28
AI Technical Summary
The existing aluminum alloy matrix abrasives used in high-power and high-torque machine tools are prone to deformation and damage due to low material strength; while steel matrix abrasives are prone to accumulate high heat and may cause the machine tool to catch fire due to low thermal conductivity.
An isolation layer is provided between the base of the steel-based abrasive tool and the abrasive layer, and the contact surface is increased through the step structure, and an isolation layer is made of a high thermal conductivity organic material to improve heat dissipation performance.
The secondary buffer isolation is established in the radial direction through the isolation layer to prevent the workpiece from contacting the base directly, reduce the risk of fire, and at the same time improve the heat dissipation performance of the abrasive layer and extend the service life of the abrasive tool.
Smart Images
Figure CN222493812U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of high-strength grinding tools and grinding wheels, in particular to a steel-based grinding tool used for high-power machine tools. Background Art
[0002] At present, most of the grinding tools used for cutting super wear-resistant workpieces (such as diamond, sapphire and other PCD composite materials) use aluminum alloy as the matrix. Although aluminum alloy has the advantages of lightness and good thermal conductivity, due to its low material strength, when used for cutting in high-power and high-torque machine tools, the matrix is easy to deform and damage the abrasive, causing it to be scrapped. An alternative is to use a steel matrix instead of an aluminum matrix. Although the high strength of the steel matrix can avoid the problem of deformation, the low thermal conductivity of the steel matrix makes it easy to accumulate high heat. If the operation is not careful and the workpiece is in direct contact with the steel matrix, it will cause the machine tool to catch fire. Utility Model Content
[0003] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0004] A steel-based grinding tool for a high-power machine tool, wherein an isolation layer is arranged between a base and an abrasive layer, the isolation layer is fixed to the base via a step structure on a radial end surface of the base, the step structure increases the contact surface between the isolation layer and the base, and the isolation layer extends radially outward from an outer step surface of the step structure to prevent the workpiece from directly contacting the base when the abrasive layer is worn.
[0005] In a preferred embodiment of the present invention, a flange is provided on the upper end surface of the isolation layer to further increase the contact area between the isolation layer and the abrasive layer and provide support when the cutting surface of the abrasive layer is subjected to force.
[0006] In a preferred embodiment of the present invention, the abrasive layer cuts the workpiece through a cutting edge angle, the cutting edge angle is located at the intersection of the cutting surface and the end surface, and the cutting edge angle is 3°.
[0007] In a preferred embodiment of the present utility model, a fixing hole for fixing to a machine tool is further provided on the lower end surface of the base, and the fixing hole occupies at least 50% of the cross-sectional area of the lower end surface.
[0008] In a preferred embodiment of the present invention, a positioning hole is further provided on the periphery of the fixing hole, and the positioning hole assists the assembly of the fixing hole when the mold is installed.
[0009] In a preferred embodiment of the present invention, the diameter of the fixing hole is 340 mm.
[0010] In a preferred embodiment of the present invention, the base is a steel base.
[0011] In a preferred embodiment of the present invention, the material of the isolation layer is an organic material having a thermal conductivity greater than that of steel.
[0012] The beneficial effects of the utility model are:
[0013] The utility model provides a steel-based grinding tool for high-power machine tools, in which an isolation layer is arranged between the steel base and the abrasive layer. On the one hand, a secondary buffer isolation is established between the base and the workpiece in the radial direction to prevent the workpiece from directly contacting the base after the abrasive layer is worn. On the other hand, the isolation layer is made of a high thermal conductivity organic material to improve the heat dissipation performance of the steel base. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0015] Figure 1 It is a cross-sectional view of the utility model.
[0016] Figure 2 yes Figure 1 A partial enlarged view of . DETAILED DESCRIPTION
[0017] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings. The above description is simplified for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.
[0018] In the specification, when an element is said to be “on,” “fixed” to, or “connected to” another element, the element may be directly on, fixed to, connected to, or contacting the other element, or intervening elements may be present.
[0019] The following will describe exemplary embodiments of the present application with reference to the accompanying drawings. However, it should be understood that the present application can be presented in a variety of different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments. In all drawings, the same reference numerals represent the same or functionally identical elements.
[0020] Sanjian Figure 1, the abrasive layer 30 is arranged on the axial end face of the base 10. An isolation layer 20 is also arranged between the abrasive layer 30 and the base 10, and the isolation layer 20 prevents the workpiece from directly contacting the steel base 10 after the abrasive layer 30 is worn. In addition, since the steel base 10 has a low thermal conductivity, in order to improve the heat dissipation performance of the abrasive layer 30 when cutting with the workpiece, the isolation layer 20 is made of an organic material with good heat dissipation performance.
[0021] Combination Figure 2 , the blade angle 33 of the abrasive layer 30 is located at the intersection of the cutting surface 31 and the end surface 32. The cutting surface 31 is used to approach the workpiece and contact the workpiece through the blade angle 33 to perform cutting. In order to adapt to the high-intensity cutting work of high-power machine tools, the blade angle 33 is set to 3° to improve durability and prevent the abrasive layer 30 from wearing too quickly. In addition, a step structure 13 that gradually decreases toward the outside is arranged on the periphery of the base layer 10. On the one hand, the contact surface with the isolation layer 20 is increased to firmly fix the two. On the other hand, a height difference d is formed in the radial direction between the outer step surface 14 and the outer side surface 22 of the isolation layer to prevent the workpiece from directly contacting the base 10 and catching fire.
[0022] In one embodiment, the isolation layer 20 is further provided with a flange 21 radially engaged with the abrasive layer 30 . When the cutting surface 31 is subjected to force, the flange 21 provides support for the abrasive layer 30 .
[0023] In one embodiment, a positioning hole 12 is further provided on the lower end surface of the base 10 . The positioning hole 12 is located at the periphery of the fixing hole 11 to assist in the assembly of the mold.
[0024] In one embodiment, the diameter of the fixing hole 11 is 340 mm, and from a cross-sectional perspective, it occupies most of the area of the lower end surface of the base 10 (at least more than 50%). By reducing the lever arm of the base 10, the mold can be applied to high-power machine tools and avoid deformation of the base 10 during high-torque cutting.
[0025] In one embodiment, transverse grooves are formed on the isolation layer 20 to further increase the contact surface with the abrasive layer 30 .
Claims
1. A steel-based abrasive tool for high-power machine tools, characterized in that: An isolation layer is arranged between the base and the abrasive layer. The isolation layer is fixed to the base via a step structure on the radial end face of the base. The step structure increases the contact surface between the isolation layer and the base. The isolation layer extends radially outward from the outer step surface of the step structure to prevent the workpiece from directly contacting the base when the abrasive layer is worn.
2. A steel-based grinding tool for a high-power machine tool as claimed in claim 1, characterized in that: A flange is arranged on the upper end surface of the isolation layer, so as to further increase the contact area between the isolation layer and the abrasive layer and provide support when the cutting surface of the abrasive layer is subjected to force.
3. A steel-based grinding tool for a high-power machine tool as claimed in claim 2, characterized in that: The abrasive layer cuts the workpiece through a cutting edge angle, the cutting edge angle is located at the intersection of the cutting surface and the end surface, and the cutting edge angle is 3°.
4. A steel-based grinding tool for a high-power machine tool as claimed in claim 3, characterized in that: The lower end surface of the base is also provided with a fixing hole for fixing to a machine tool, and the fixing hole occupies at least 50% of the cross-sectional area of the lower end surface.
5. A steel-based grinding tool for a high-power machine tool as claimed in claim 4, characterized in that: A positioning hole is also provided on the outer periphery of the fixing hole, and the positioning hole assists the fixing hole in assembling when the mold is installed.
6. A steel-based grinding tool for a high-power machine tool as claimed in claim 4, characterized in that: The diameter of the fixing hole is 340 mm.
7. A steel-based grinding tool for a high-power machine tool as claimed in claim 4, characterized in that: The base is a steel base.
8. A steel-based grinding tool for a high-power machine tool as claimed in claim 7, characterized in that: The material of the isolation layer is an organic material with a thermal conductivity greater than that of steel.