A diamond roller processing method for hob machining

Abstract

The invention discloses a method for processing a diamond roller for hob processing, comprising the following steps: processing an annular groove on the inner ring of an annular roller female mold, placing CVD artificial diamond raw materials in the annular groove in sequence, firing a semi-finished diamond roller in the roller female mold by powder metallurgy, taking out the semi-finished diamond roller, and trimming two sides of the use end of the CVD artificial diamond raw materials with a grinding wheel to finally obtain a finished roller; the invention changes the original arrangement method and trimming method of the CVD artificial diamonds, so that the processed diamond roller has a sharp tip ridge, thereby improving the processing efficiency of the diamond roller; the structures on both sides of the tip ridge form a cutting layer structure at the sharp corner of the diamond end, thereby enhancing the wear resistance of the roller; the improved diamond roller has a more reasonable grinding state, so that it has the advantages of high precision, high stability, high wear resistance, etc., and can meet the high-speed and high-efficiency processing requirements of customers.

Description

Technical Field

[0001] The invention relates to a method for machining a diamond roller for hob machining, and belongs to the technical field of diamond rollers. Background Art

[0002] The existing traditional process generally uses CVD artificial diamonds embedded in the roller. The width from the actual arc surface to the end of the diamond is the same, and the contact area with the grinding wheel is the same. However, during the processing, the wear of the actual arc surface is greater than that of the end of the diamond surface. This situation is prone to extrusion during the dressing of the grinding wheel, resulting in rapid wear of the arc and a short service life. Summary of the Invention

[0003] In view of the above-mentioned technical problems, the purpose of the present invention is to provide a method for machining a diamond roller for hob machining.

[0004] The technical solution of the present invention is achieved as follows: A method for machining a diamond roller for hob machining comprises the following steps:

[0005] ①Machining an annular groove on the inner ring of the annular roller die to prepare CVD synthetic diamond raw materials;

[0006] ② Place the CVD artificial diamond raw materials in the annular slot in order, so that the use end of the CVD artificial diamond raw materials faces the bottom of the annular slot, and the end face of the use end of the CVD artificial diamond raw materials is a quadrilateral;

[0007] ③ The diamond roller semi-finished product is fired in the roller female mold by powder metallurgy. The part of the diamond roller semi-finished product located in the annular groove is the working end;

[0008] ④ Take out the semi-finished diamond roller, use a grinding wheel to trim the two sides of the use end of the CVD artificial diamond raw material, so that a sharp ridge is formed in the middle of the use end of the CVD artificial diamond raw material, and the two sides of the sharp ridge form mutually symmetrical diamond use surfaces to obtain a finished roller;

[0009] The tip ridge is parallel to the tangent line of the semi-finished diamond roller, and the tip ridge and the diamond use surfaces on both sides are protruding from the surface of the finished roller.

[0010] Preferably, the inner ring of the roller female mold has two mutually symmetrical annular grooves, and the inner ring of the roller female mold forms a female mold annular protrusion structure between the two annular grooves, so that the processed diamond roller semi-finished product has a wheel surface groove structure.

[0011] Preferably, the end face of the use end of the CVD artificial diamond raw material is square or rhombus-shaped, and the diamond use surfaces on both sides of the tip ridge are symmetrical isosceles triangles.

[0012] Preferably, the included angle between the diamond use surfaces on both sides of the tip ridge is an acute angle.

[0013] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0014] The present invention changes the original arrangement method and trimming method of CVD artificial diamonds, so that the processed diamond roller has a sharp tip ridge, which improves the processing efficiency of the diamond roller. The structure on both sides of the tip ridge enables the sharp corners of the diamond end to form a cutting layer structure, thereby enhancing the wear resistance of the roller. The improved diamond roller has a more reasonable grinding state, giving it the advantages of high precision, high stability, high wear resistance, etc., which can meet customers' high-speed and efficient processing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The technical solution of the present invention will be further described below with reference to the accompanying drawings:

[0016] Attachment Figure 1 Schematic diagram of the three-dimensional structure of the roller female mold of the present invention;

[0017] Attachment Figure 2 It is a partial structural diagram of the roller female mold;

[0018] Attachment Figure 3 for Figure 2 A magnified view of point A;

[0019] Attachment Figure 4 This is a schematic diagram of the three-dimensional structure of the semi-finished diamond roller of the present invention;

[0020] Attachment Figure 5 A cross-sectional view of the semi-finished diamond roller of the present invention;

[0021] Attachment Figure 6 for Figure 5 Enlarged view of point B;

[0022] Attachment Figure 7 This is a schematic diagram of the three-dimensional structure of the finished roller according to the present invention;

[0023] Attachment Figure 8 is a cross-sectional view of the finished roller of the present invention;

[0024] Attachment Figure 9 for Figure 8 Enlarged view of point C;

[0025] Attachment Figure 10 This is a schematic diagram of the processing change state of the CVD artificial diamond raw material described in the present invention. DETAILED DESCRIPTION

[0026] The present invention will be described below with reference to the accompanying drawings.

[0027] As attached Figure 1-10 As shown, the diamond roller processing method for hob processing described in the present invention comprises the following steps:

[0028] ①As attached Figure 1-3 As shown, two symmetrical annular grooves 2 are processed on the inner ring of the annular roller die 1, and the inner ring of the roller die 1 forms a die annular protrusion structure 21 between the two annular grooves 2; prepare CVD artificial diamond raw material 11, which is a rectangular parallelepiped.

[0029] ② Place the CVD artificial diamond raw materials 11 in the annular slot 2 in sequence, with the use end of the CVD artificial diamond raw materials 11 facing the bottom of the annular slot 2. The spacing of the CVD artificial diamond raw materials 11 is set according to actual needs; the end face of the use end of the CVD artificial diamond raw materials 11 is a square, and the two diagonals of the square are parallel and perpendicular to the tangent of the annular slot 2, respectively.

[0030] ③ The diamond roller semi-finished product 3 is fired in the roller female mold 1 by powder metallurgy. The diamond roller semi-finished product 3 is as shown in the attached Figure 4-6 As shown, the portion of the diamond roller semi-finished product 3 located in the annular groove 2 is the working end, and a wheel surface groove structure 5 is formed between the working ends on both sides of the diamond roller semi-finished product, which can be beneficial to heat dissipation and chip removal.

[0031] ④ Take out the diamond roller semi-finished product 3, machine the diamond roller semi-finished product 3, and use the grinding wheel to trim the two sides of the use end of the CVD artificial diamond raw material 11, such as Figure 6 The approximate position of the rectangular dotted line frame is selected, so that the middle of the use end of the CVD artificial diamond raw material 11 forms a sharp ridge 12, and the two sides of the sharp ridge 12 form mutually symmetrical diamond use surfaces 13, thereby obtaining a finished roller 4. The finished roller 4 is as shown in FIG. Figure 7-9 As shown, Figure 9 The cross section of the diamond part relative to Figure 6 The reason why it becomes smaller is only because of the different cross-sectional angles. The actual main part of the diamond inside the roller does not change.

[0032] The tip ridge 12 is parallel to the tangent line of the diamond roller semi-finished product 3. Figure 10 The angle between the diamond use surfaces 13 on both sides of the tip ridge 12 is an acute angle. The tip ridge 12 and the diamond use surfaces 13 on both sides are protruding from the surface of the roller finished product 4. The diamond use surfaces 13 on both sides of the tip ridge 12 are isosceles triangles that are symmetrical to each other.

[0033] The invented diamond roller dressing method has the following advantages:

[0034] Enhanced roller sharpness: can shorten processing time, reduce the number of diamond roller dressers and grinding wheel replacement, and achieve high-efficiency processing.

[0035] Enhanced wear resistance of the roller: high-quality CVD has high hardness and thermal conductivity, reducing grinding burn and achieving high-quality processing.

[0036] Maintaining the stability of the roller: The strong hardness and reasonable arrangement of CVD make the processing accuracy fluctuation small and achieve high-precision processing.

[0037] Extended roller service life: helps customers reduce costs.

[0038] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for machining a diamond roller for hob machining, characterized in that: The following steps are involved: ① Processing an annular groove (2) on the inner ring of the annular roller female mold (1) to prepare CVD artificial diamond raw material (11); ② placing the CVD artificial diamond raw material (11) in the annular groove (2) in order, so that the use end of the CVD artificial diamond raw material (11) faces the bottom of the annular groove (2), and the end face of the use end of the CVD artificial diamond raw material (11) is a quadrilateral; ③ Sintering a diamond roller semi-finished product (3) in the roller female mold (1) by powder metallurgy, wherein the portion of the diamond roller semi-finished product (3) located in the annular groove (2) is the working end; ④ Take out the diamond roller semi-finished product (3), and use a grinding wheel to repair the two sides of the use end of the CVD artificial diamond raw material (11), so that a tip ridge (12) is formed in the middle of the use end of the CVD artificial diamond raw material (11), and diamond use surfaces (13) are formed on both sides of the tip ridge (12), thereby obtaining a roller finished product (4); The tip ridge (12) is parallel to the tangent line of the diamond roller semi-finished product (3), and the tip ridge (12) and the diamond use surfaces (13) on both sides are protruding from the surface of the roller finished product (4); The inner ring of the roller female mold (1) has two mutually symmetrical annular grooves (2), and the inner ring of the roller female mold (1) forms a female mold annular protrusion structure (21) between the two annular grooves (2), so that the processed diamond roller semi-finished product (3) has a wheel surface groove structure (5).

2. The diamond roller processing method for hob processing according to claim 1, characterized in that: The end face of the use end of the CVD artificial diamond raw material (11) is square, and the diamond use surfaces (13) on both sides of the tip ridge (12) are isosceles triangles that are symmetrical to each other.

3. The diamond roller processing method for hob processing according to claim 1, characterized in that: The included angles of the diamond use surfaces (13) on both sides of the tip ridge (12) are acute angles.

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