A honing tool

Abstract

The present application relates to a kind of honing tools, belong to honing equipment technical field, to solve the existing technology, the inner hole of the metal piece of aluminum, copper and its alloy is processed by honing, there is the problem of honing processing process, metal chip is easy to block tool chip removal passage, leading to low workpiece machining precision even workpiece scrapping, affect processing quality.The present application includes tool body, tool body is the cylindrical structure of the section being circular type, tool body includes connecting portion, honing portion and guide portion along the body, and guide portion and honing portion are equipped with first chip removal groove;The slotting direction of first chip removal groove is opposite to the honing rotation direction of honing tool.The tool body of the honing tool of the present application is equipped with first chip removal groove and second chip removal groove, wherein the slotting direction of first chip removal groove is opposite to the honing rotation direction of tool, by reverse fluid dynamics effect, can enhance the flushing strength of chip liquid when honing, simultaneously accelerate chip discharge, and the chip removal efficiency is high.

Description

Technical Field

[0001] This invention belongs to the field of metal cutting technology, specifically relating to a honing tool. Background Technology

[0002] Honing is a finishing process primarily used for precision machining of the inner surfaces of metal parts to improve their dimensional accuracy, shape accuracy, and surface quality. In existing technologies, aluminum, copper, and their alloys are widely used in high-end manufacturing due to their low density, good thermal conductivity, and excellent plasticity. However, these materials have low hardness (aluminum alloys typically have a hardness of HB30-100, and copper alloys have a hardness of HB50-120) and high ductility, making them prone to chip adhesion to the tool during honing. Specifically, chips adhere to the surface of abrasive particles, clogging the tool's chip removal channels, leading to workpiece surface scratches, dimensional inaccuracies, and even tool jamming and workpiece scrap, severely restricting processing efficiency and quality. Therefore, there is an urgent need for a honing tool to solve the problem in existing technologies where, during the honing of inner holes in aluminum, copper, and their alloy parts, metal chips easily clog the tool's chip removal channels, resulting in low workpiece machining accuracy or even workpiece scrap, thus affecting processing quality. Summary of the Invention

[0003] The purpose of this invention is to provide a honing tool to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a honing tool, comprising a tool body, the tool body being a cylindrical structure with a circular cross-section, the tool body including a connecting portion, a honing portion and a guiding portion along the body, and the guiding portion and the honing portion being provided with a first chip removal groove; the groove direction of the first chip removal groove is opposite to the honing rotation direction of the honing tool.

[0005] Preferably, the guide section and the honing section are also provided with a second chip removal groove, the groove direction of which is consistent with the rotation direction of the honing tool; both the first chip removal groove and the second chip removal groove are spirally opened along the outer circumference of the tool body.

[0006] Preferably, the diameter of the connecting part of the honing tool is larger than the diameter of the honing part, and a transition part is provided between the connecting part and the honing part; the diameter of the honing part is consistent with the diameter of the guide part; the first chip removal groove and the second chip removal groove extend to the transition part respectively.

[0007] Preferably, the diameter of the transition portion toward the honing portion is the same as that of the honing portion, and the diameter of the tapered structure that gradually increases toward the connecting portion has the same diameter at the end toward the connecting portion as the connecting portion.

[0008] Preferably, a first connecting body is provided between the guide portion and the honing portion, and a second connecting body is provided between the honing portion and the transition portion.

[0009] Preferably, the diameters of the first connector and the second connector are the same, and the diameters of the first connector and the second connector are smaller than the diameter of the honing part; the first connector and the second connector each form two chip grooves.

[0010] Preferably, the number of the first chip removal groove and the second chip removal groove are the same, and each has at least one.

[0011] Preferably, the first and second chip removal grooves are designed symmetrically along the outer side of the tool body.

[0012] Preferably, the honing section has a honing layer made of diamond or cubic boron nitride.

[0013] Preferably, the width of the first chip removal groove is 3-6 mm, and the ratio of groove depth to groove width is 1.2:1.

[0014] Beneficial effects: 1. The honing tool of the present invention includes a tool body, which includes a connecting portion for connection with a driving component, a honing portion for honing, and a guiding portion for guiding the tool during honing. The honing tool of this application has a first chip removal groove and a second chip removal groove on the tool body, wherein the groove direction of the first chip removal groove is opposite to the honing rotation direction of the tool. Through the reverse hydrodynamic effect, the flushing force of the cutting fluid during honing can be enhanced, and the chip discharge can be accelerated, resulting in high chip removal efficiency.

[0015] 2. Based on the foregoing, the first and second chip removal grooves of the honing tool of the present invention are symmetrically designed along the outer side of the tool body to form a double-helix bidirectional symmetrical structure. This allows the cutting forces during honing to be balanced, effectively avoiding tool vibration and wobble that occur with single-helix or unidirectional double-helix honing tools during honing. This not only improves honing accuracy but also enhances the cleaning effect of the honing process. When honing soft metal materials, it greatly improves chip removal smoothness, solving the problem of metal powder embedding into the wear-resistant material of the honing tool and causing scratches on the inner hole of the part due to poor chip removal.

[0016] 3. Based on the foregoing, the diameter of the connecting portion of the honing tool in this invention is larger than the diameter of the honing part, and a transition portion is also provided between the connecting portion and the honing part. The diameter of the honing part is the same as the diameter of the guide portion, the diameter of the transition portion facing the honing part is the same as the diameter of the honing part, and the diameter of the tapered structure with the gradually increasing diameter towards the connecting portion is the same as the diameter of the connecting portion at its end. This arrangement ensures that the diameter of the connecting portion is larger than that of the honing part, allowing the honing tool to be effectively connected to the driving component through the connecting portion, improving the effective transmission of the driving force during tool honing. The transition portion facilitates the further transmission of the driving force to the honing part and the guide portion, resulting in uniform force distribution on the entire tool and improving the honing effect.

[0017] 4. Based on the foregoing, the honing tool of the present invention has a first connecting body between the guide part and the honing part, and a second connecting body between the honing part and the transition part, so as to form two chip grooves, thereby facilitating chip removal, improving the honing accuracy of the workpiece, and reducing the surface roughness.

[0018] 5. Based on the foregoing, the first chip removal groove of the honing tool of the present invention has a groove width of 3-6mm and a groove depth to groove width ratio of 1.2:1. By controlling the groove width and groove depth of the chip removal groove, the chip removal efficiency can be maximized and the tool sticking rate can be reduced. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the honing tool used in an embodiment.

[0020] In the figure: 1. Tool body; 2. Connecting part; 3. Honing part; 4. Guide part; 5. First chip removal groove; 6. Second chip removal groove; 7. Transition part; 8. First connecting body; 9. Second connecting body. Detailed Implementation

[0021] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments.

[0022] Please see Figure 1 This embodiment provides a honing tool, including a tool body 1. The tool body is a cylindrical structure with a circular cross-section. The tool body includes a connecting part 2, a honing part 3 and a guide part 4 along the body. The guide part and the honing part are provided with a first chip removal groove 5. The groove direction of the first chip removal groove is opposite to the honing rotation direction of the honing tool.

[0023] In this embodiment, the guide section and honing section are further provided with a second chip removal groove 6. The groove direction of the second chip removal groove is consistent with the rotation direction of the honing tool. Both the first and second chip removal grooves are spirally opened along the outer circumference of the tool body. In this embodiment, the number of the first and second chip removal grooves is the same, one in each case, and the first and second chip removal grooves are symmetrically designed along the outer side of the tool body. In addition, the groove width of the first chip removal groove in this embodiment is 3-6 mm, and the groove depth to groove width ratio is 1.2:1.

[0024] Furthermore, in this embodiment, the diameter of the connecting portion of the honing tool is larger than the diameter of the honing portion, and a transition portion 7 is provided between the connecting portion and the honing portion; the diameter of the honing portion is the same as the diameter of the guide portion; the first chip removal groove and the second chip removal groove extend to the transition portion respectively. In this embodiment, the diameter of the transition portion facing the honing portion is the same as that of the honing portion, and the diameter of the tapered structure that gradually increases towards the connecting portion is the same as the diameter of the connecting portion at its end. In addition, in this embodiment, a first connecting body 8 is provided between the guide portion and the honing portion, and a second connecting body 9 is provided between the honing portion and the transition portion.

[0025] Furthermore, the diameters of the first connector and the second connector are the same, and the diameters of the first connector and the second connector are smaller than the diameter of the honing part; the first connector and the second connector each form two chip grooves.

[0026] In addition, the honing part in this embodiment is provided with a honing layer, which is made of diamond or cubic boron nitride.

[0027] Working Principle: The honing tool of this embodiment includes a tool body, which includes a connecting part for connection with a driving component, a honing part for honing, and a guiding part for guiding the tool during honing. The honing tool of this application has a first chip removal groove and a second chip removal groove on the tool body. The groove direction of the first chip removal groove is opposite to the honing rotation direction of the tool. Through the reverse hydrodynamic effect, the flushing force of the cutting fluid during honing can be enhanced, and the chip discharge can be accelerated, resulting in high chip removal efficiency. The first chip removal groove and the second chip removal groove are symmetrically designed along the outer side of the tool body to form a double-helix bidirectional symmetrical structure. This can balance the cutting forces during honing and effectively avoid tool vibration and wobble in honing tools with single-helix or unidirectional double-helix configurations during honing. This not only improves honing accuracy but also enhances the flushing effect during the honing process. When honing soft metal materials, it greatly improves the chip removal efficiency, solving the problem of metal powder embedding into the wear-resistant material of the honing tool and causing scratches on the inner hole of the part due to poor chip removal.

[0028] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A honing tool, comprising a tool body, characterized in that: The tool body is a cylindrical structure with a circular cross-section. The tool body includes a connecting part, a honing part and a guiding part, and the guiding part and the honing part are provided with a first chip removal groove. The groove direction of the first chip removal groove is opposite to the honing rotation direction of the honing tool.

2. A honing tool according to claim 1, characterized in that, The guide section and honing section are also provided with a second chip removal groove, the groove direction of which is consistent with the rotation direction of the honing tool; both the first chip removal groove and the second chip removal groove are spirally opened along the outer circumference of the tool body.

3. A honing tool according to claim 2, characterized in that, The diameter of the connecting part of the honing tool is larger than the diameter of the honing part, and a transition part is provided between the connecting part and the honing part; the diameter of the honing part is consistent with the diameter of the guide part; the first chip removal groove and the second chip removal groove extend to the transition part respectively.

4. A honing tool according to claim 3, characterized in that, The diameter of the transition portion facing the honing portion is the same as that of the honing portion, and the diameter of the tapered structure that gradually increases towards the connecting portion has the same diameter at the end facing the connecting portion as the connecting portion.

5. A honing tool according to claim 3, characterized in that, A first connecting body is provided between the guide part and the honing part, and a second connecting body is provided between the honing part and the transition part.

6. A honing tool according to claim 5, characterized in that, The first connector and the second connector have the same diameter, and the diameter of the first connector and the second connector is smaller than the diameter of the honing part; the first connector and the second connector each form two chip grooves.

7. A honing tool according to claim 2, characterized in that, The number of the first chip removal groove and the second chip removal groove are the same, and each has at least one.

8. A honing tool according to claim 7, characterized in that, The first and second chip removal grooves are designed symmetrically along the outer side of the tool body.

9. A honing tool according to claim 1, characterized in that, The honing part is provided with a honing layer, which is made of diamond or cubic boron nitride.

10. A honing tool according to claim 1, characterized in that, The width of the first chip removal groove is 3-6mm, and the ratio of the groove depth to the groove width is 1.2:1.

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