Diamond cutter head with high stability

Abstract

The invention discloses a high-stability diamond cutter head, and belongs to the technical field of metal processing cutters, the high-stability diamond cutter head comprises a cutter head body, cutter block mounting grooves are uniformly formed in the edge of the cutter head body in the circumferential direction, and cutter block units and radial positioning blocks are tightly attached and fixed in the cutter block mounting grooves; the side wall, attached to the cutter block unit, of the cutter block mounting groove is a vertical wedge angle and is provided with a tooth-shaped positioning reference surface, and the cutter block unit is provided with a tooth-shaped positioning clamping surface matched with the tooth-shaped positioning reference surface; the radial positioning blocks are tightly clamped between the cutter block units and the side walls of the opposite cutter block installation grooves, matched positioning block threaded holes are formed between the cutter block installation grooves and the radial positioning blocks in the radial direction, and the radial positioning blocks are fixed in the cutter block installation grooves through fastening screws. According to the tool block positioning device, accurate positioning of the tool blocks in the axial direction, the radial direction and the tangential direction can be achieved, high stability is achieved, the assembling consistency of all the tool blocks can be guaranteed, and long-time stable and high-precision machining can be achieved.

Description

Technical Field

[0001] This invention relates to the field of metalworking cutting tool technology, and in particular to a diamond cutting tool disc with high stability. Background Technology

[0002] Currently, with the booming development of the communications and new energy vehicle industries, the market demand for conductive copper strips is experiencing rapid growth. At the same time, the industry is placing increasingly stringent requirements on the dimensional accuracy and surface roughness of copper strips. Currently, the thickness of the processed copper strips ranges from 0.8 to 2 mm, the cutting depth accounts for 50% to 90% of the strip's thickness, the width of the machining groove is 10 to 50 mm, and the surface roughness requirement is lower than Ra0.4. Furthermore, high processing efficiency and good continuous stability must be ensured during production. Considering the copper strip's packaging method, the processing of irregularly shaped copper strips must possess long-term continuous stability. Therefore, developing an adjustable cutter head for processing ultra-thin irregularly shaped copper strips has become an urgent priority to solve the aforementioned production problems. Summary of the Invention

[0003] The purpose of this invention is to provide a diamond tool disc with high stability, which can achieve precise positioning of the tool blocks in the axial, radial and tangential directions and has high stability, can ensure the assembly consistency of each tool block, and is conducive to achieving long-term continuous and stable machining.

[0004] To achieve the above objectives, the present invention provides a diamond tool disc with high stability, comprising a disc body, wherein tool block mounting grooves are uniformly formed circumferentially along the edge of the disc body, and tool block units and radial positioning blocks are tightly fitted and fixed within the tool block mounting grooves; the sidewall of the tool block mounting groove that fits with the tool block unit is a vertical wedge angle and is formed as a toothed positioning reference surface, and the tool block unit is provided with a toothed positioning snap-fit ​​surface that matches the toothed positioning reference surface; the radial positioning block is tightly snapped between the tool block unit and the opposite sidewall of the tool block mounting groove, and a matching positioning block threaded hole is formed radially between the tool block mounting groove and the radial positioning block, and the radial positioning block is fixed within the tool block mounting groove by fastening screws.

[0005] Preferably, the radial positioning block is a wedge-shaped block that fits tightly against the blade unit and the blade mounting groove on both sides, and the included angle between the radial positioning block and the blade mounting groove is an obtuse angle.

[0006] Preferably, the included angle between the radial positioning block and the side of the blade mounting groove that is in contact with the radial positioning block is 105°.

[0007] Preferably, one side of the blade mounting groove is an open structure, and the blade body on the open side is provided with a circumferentially threaded hole and an axial positioning baffle is fixed by fastening screws.

[0008] Preferably, the inner side of the axial positioning baffle is provided with a positioning boss that matches the position and shape of the blade unit.

[0009] Preferably, the cutting block unit includes a cutting tool positioning block and a diamond cutting tool. The toothed positioning snap-fit ​​surface is disposed on the back of the cutting tool positioning block. A square pyramidal positioning groove is formed on the front of the cutting tool positioning block. The structure of the diamond cutting tool matches the structure of the square pyramidal positioning groove and is embedded and fixed in the square pyramidal positioning groove. The outer sides of both the cutting tool positioning block and the diamond cutting tool are tightly fitted to the radial positioning block.

[0010] Preferably, a cylindrical groove is formed in the square pyramidal positioning groove, and a cylindrical boss is provided on the inner side of the diamond cutting tool and embedded in the cylindrical groove.

[0011] Preferably, the diamond cutting tool tip is laser-processed and the cutting edge is blunted, and then precision ground to achieve a radial runout of less than 0.002 mm for all cutting edges.

[0012] Preferably, there are two blade mounting slots arranged along the axial direction of the blade disc body, and each blade mounting slot is fixed with a set of blade units and a radial positioning block.

[0013] Therefore, compared with the prior art, the diamond cutting tool disc with high stability described above has the following advantages in this invention: (1) Precise positioning: Through the positioning boss, toothed positioning reference surface and other structures, the tool block unit is accurately positioned in the axial, radial and tangential directions, and the installation positioning deviation in the three directions is less than 0.01mm.

[0014] (2) High processing quality: After laser processing and edge passivation treatment, and then through precision grinding, the radial runout of all cutting edges is less than 0.002mm, which can meet the requirement that the surface roughness of the processed copper strip is less than Ra0.4.

[0015] (3) Good continuous stability: The tool block unit ensures assembly consistency through consistent processing, and the overall product delivery avoids secondary clamping and adjustment errors, which is conducive to achieving long-term continuous and stable processing. (4) Highly adjustable: It is suitable for processing ultra-thin irregular copper strips of different specifications, which improves the versatility and applicability of the cutting tools. (5) High processing efficiency: It can meet the processing efficiency requirements of the rapidly growing demand for conductive copper strips in the communications and new energy vehicle industries.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a diamond tool disc with high stability according to a first embodiment of the present invention; Figure 2 This is a schematic diagram of the installation structure of the tool block unit and radial positioning block in a first embodiment of a diamond tool disc with high stability according to the present invention. Figure 3 This is a schematic diagram of the cutting bit positioning block of a diamond cutting tool disc with high stability according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the overall structure of the tool block unit in Embodiment 1 of a diamond tool disc with high stability according to the present invention; Figure 5 This is a schematic diagram of the axial positioning baffle of a diamond tool disc with high stability according to a first embodiment of the present invention; Figure 6 This is a schematic diagram of the overall structure of a diamond tool disc with high stability according to a second embodiment of the present invention; Figure 7 This is a top view schematic diagram of a second embodiment of a diamond tool disc with high stability according to the present invention; Figure 8 This is a schematic diagram of the overall structure of the tool block unit of a diamond tool disc with high stability according to two embodiments of the present invention.

[0018] Figure Labels 1. Cutter head body; 11. Cutter block mounting groove; 12. Tooth-shaped positioning reference surface; 13. Cutter head body threaded hole; 2. Cutter block unit; 21. Cutter bit positioning block; 22. Diamond cutter bit; 23. Square pyramidal positioning groove; 24. Cylindrical groove; 25. Cylindrical boss; 26. Tooth-shaped positioning snap-fit ​​surface; 3. Radial positioning block; 31. Positioning block threaded hole; 4. Axial positioning baffle; 41. Positioning boss. Detailed Implementation

[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Example 1 like Figure 1 As shown, this embodiment provides a diamond tool disc with high stability, including a disc body 1, which is the main body of the entire disc and provides mounting positions for various components. Figure 2 As shown, in this embodiment, 18 tool block mounting slots 11 are evenly distributed circumferentially on the tool disc body 1 for mounting tool blocks. Tool block units 2 and radial positioning blocks 3 are tightly fitted and fixed in the tool block mounting slots 11, which can improve the stability of the tool block unit 2 installation, prevent the tool block unit 2 from easily shifting, and ensure long-term continuous and stable processing.

[0022] The sidewall of the blade mounting groove 11 that fits with the blade unit 2 is a vertical wedge angle and is provided with a toothed positioning reference surface 12. The blade unit 2 is provided with a toothed positioning snap-fit ​​surface 26 that matches the toothed positioning reference surface 12. Through the mutual meshing of each tooth, the fixing effect of the blade unit 2 in the radial direction can be improved. With the cooperation of the radial positioning block 3, the blade unit 2 can be prevented from sliding out easily, thus ensuring the stability of the blade unit 2 during operation.

[0023] The radial positioning block 3 is tightly engaged between the blade block unit 2 and the side wall of the opposing blade block mounting groove 11, such as... Figure 2 As shown, the radial positioning block 3 is a wedge-shaped block that is tightly fitted to the blade unit 2 and the blade mounting groove 11 on both sides. The included angle between the radial positioning block 3 and the blade mounting groove is an obtuse angle. In this embodiment, the included angle between the radial positioning block 3 and the blade mounting groove 11 is 105°.

[0024] like Figure 1As shown, a matching positioning block threaded hole 31 is provided radially between the blade block mounting groove 11 and the radial positioning block 3, and the radial positioning block 3 is fixed in the blade block mounting groove 11 by fastening screws. During the installation of the radial positioning block 3, as the fastening screws are screwed in, the radial positioning block 3 converts the radial pressure into tangential pressure, which can continuously increase the squeezing pressure of the radial positioning block 3 on the blade block unit 2, thereby realizing the clamping and positioning of the blade block unit 2 and ensuring the stability of the blade block unit 2 during operation.

[0025] like Figure 2 As shown, the cutting tool unit 2 includes a cutting tool positioning block 21 and a diamond cutting tool 22, with a toothed positioning and engaging surface 26 disposed on the back of the cutting tool positioning block 21. Figure 3 As shown, the front of the cutting tool positioning block 21 has a square pyramidal positioning groove 23. The structure of the diamond cutting tool 22 matches the structure of the square pyramidal positioning groove 23 and is embedded and fixed in the square pyramidal positioning groove 23, ensuring the installation stability of the diamond cutting tool 22. In addition, the cutting tool unit 2 adopts a split design. When the diamond cutting tool 22 is severely worn and needs to be replaced, only the diamond cutting tool 22 needs to be replaced, which can reduce manufacturing and replacement costs.

[0026] like Figure 3 and Figure 4 As shown, a cylindrical groove 24 is formed inside the square pyramidal positioning groove 23. A cylindrical boss 25 is provided on the inner side of the diamond cutting tool 22, which is embedded in the cylindrical groove 24. During installation, by embedding the cylindrical boss 25 into the cylindrical groove 24, the limiting effect on the diamond cutting tool 22 can be further improved, ensuring the structural stability of the diamond cutting tool 22. The outer sides of both the cutting tool positioning block 21 and the diamond cutting tool 22 are tightly fitted with the radial positioning block 3. By fixing the radial positioning block 3, the cutting tool positioning block 21 and the diamond cutting tool 22 can be pressed and positioned simultaneously.

[0027] In this embodiment, the diamond cutting tool 22 has undergone laser processing and edge passivation treatment.

[0028] like Figure 1 and Figure 2 As shown, one side of the tool block mounting slot 11 is open. The tool disc body 1 on the open side has a circumferentially threaded hole 13 and an axial positioning baffle 4 is fixed thereon with fastening screws. The inner side of the axial positioning baffle 4 has a positioning boss 41 that matches the position and shape of the tool block unit 2, such as... Figure 5 As shown. During the installation of the axial positioning baffle 4, the positioning boss 41 can gradually press the tool block unit 2 inward, thereby achieving the axial fixing effect of the tool block unit 2.

[0029] In this embodiment, the cutter block unit 2, composed of the diamond cutting tool 22 and the cutting tool positioning block 21, can ensure the assembly consistency of each cutter block unit 2 through consistent processing. The axial positioning boss 41, the toothed positioning reference surface 12, and the radial positioning block 3 fix the cutter block unit 2 in the axial, radial, and tangential directions on the cutter head body 1, ensuring that the installation positioning deviation in all three directions is less than 0.01 mm.

[0030] The assembled cutter head is installed on the machine tool holder. After laser processing and edge blunting, and then precision grinding, the radial runout of all cutting edges can be less than 0.002mm, so that the cutter block unit 2 has sufficient stability and ultra-high precision during operation.

[0031] Example 2 The difference between this embodiment and Embodiment 1 is that 36 tool block mounting slots 11 are evenly distributed circumferentially on the tool disc body 1 for mounting the tool blocks, such as... Figure 6 As shown. Among them, as Figure 7 As shown, the tool block mounting slots 11 are arranged in pairs along the axial direction of the tool disc body 1. Each tool block mounting slot 11 contains a set of tool block units 2 and radial positioning blocks 3. The structure of the tool block unit 2 is as follows: Figure 8 As shown, tool block units 2 and radial positioning blocks 3 are tightly fitted and fixed in the two tool block mounting slots 11 arranged axially. This improves the stability of the tool block unit 2 installation, prevents the tool block unit 2 from easily shifting, and ensures continuous and stable machining over a long period of time. The remaining structure and installation method of the tool block unit 2 and radial positioning blocks 3 are consistent with those in Embodiment 1.

[0032] The tool structure of this embodiment can simultaneously perform cutting operations on two copper strips, improving the applicability and efficiency of the tool, and meeting the processing efficiency requirements of the rapidly growing demand for conductive copper strips in the new energy vehicle industry.

[0033] Therefore, the present invention employs a diamond tool disc with high stability, which can achieve precise positioning of the tool blocks in the axial, radial and tangential directions with high stability and ultra-high precision. It can ensure the assembly consistency of each tool block, which is conducive to achieving long-term continuous and stable processing. It is suitable for processing ultra-thin irregular copper strips of different specifications, thus improving the versatility and applicability of the tool.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A diamond tool disc with high stability, characterized in that: The device includes a cutter head body. A cutter block mounting groove is evenly formed circumferentially along the edge of the cutter head body. A cutter block unit and a radial positioning block are tightly fitted and fixed within the cutter block mounting groove. The sidewall of the cutter block mounting groove that fits against the cutter block unit has a vertical wedge angle and is formed as a toothed positioning reference surface. The cutter block unit has a toothed positioning snap-fit ​​surface that matches the toothed positioning reference surface. The radial positioning block is tightly snapped between the cutter block unit and the opposite sidewall of the cutter block mounting groove. A matching positioning block threaded hole is formed radially between the cutter block mounting groove and the radial positioning block, and the radial positioning block is fixed within the cutter block mounting groove by fastening screws.

2. The diamond tool disc with high stability according to claim 1, characterized in that: The radial positioning block is a wedge-shaped block that fits tightly against the blade unit and the blade mounting groove on both sides, and the included angle between the radial positioning block and the blade mounting groove is an obtuse angle.

3. The diamond tool disc with high stability according to claim 1, characterized in that: The included angle between the radial positioning block and the side of the blade mounting groove that is in contact with the blade is 105°.

4. A diamond cutting tool disc with high stability according to claim 1, characterized in that: One side of the blade mounting groove is an open structure, and the blade body on the open side has a circumferentially threaded hole and an axial positioning baffle is fixed by fastening screws.

5. A diamond tool disc with high stability according to claim 4, characterized in that: The inner side of the axial positioning baffle is provided with a positioning boss that matches the position and shape of the blade unit.

6. A diamond tool disc with high stability according to claim 1, characterized in that: The cutting block unit includes a cutting tool positioning block and a diamond cutting tool. The toothed positioning snap-fit ​​surface is disposed on the back of the cutting tool positioning block. A square pyramidal positioning groove is formed on the front of the cutting tool positioning block. The structure of the diamond cutting tool matches the structure of the square pyramidal positioning groove and is embedded and fixed in the square pyramidal positioning groove. The outer sides of both the cutting tool positioning block and the diamond cutting tool are tightly fitted to the radial positioning block.

7. A diamond tool disc with high stability according to claim 6, characterized in that: The square pyramidal positioning groove has a cylindrical groove, and the inner side of the diamond cutting tool has a cylindrical boss embedded in the cylindrical groove.

8. A diamond tool disc with high stability according to claim 6, characterized in that: The diamond cutting tool tips are laser-processed and have their cutting edges dulled, and then precision ground to achieve a radial runout of less than 0.002 mm for all cutting edges.

9. A diamond cutting tool disc with high stability according to claim 1, characterized in that: Two blade mounting slots are arranged along the axial direction of the blade disc body, and each blade mounting slot contains a set of blade units and a radial positioning block.

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