Novel diamond cutter for milling grooves

Abstract

The utility model relates to the technical field of diamond cutters, in particular to a novel diamond cutter for milling grooves, which comprises a saw disc, saw teeth and a mounting rotating shaft, the sawteeth are provided with fixing assemblies, the mounting groove is formed in the side faces of the sawteeth, two sliding rails are symmetrically mounted in the mounting groove, two sliding grooves used for sliding on the two sliding rails are formed in the lower portion of the blade in parallel, and the first threaded hole is formed in the mounting groove in a penetrating mode and provided with a first half-threaded groove. The first half-thread groove and the second half-thread groove can be spliced into a complete threaded hole, and the inner hexagonal threaded rod can be taken out from the threaded hole formed by splicing the first half-thread groove and the second half-thread groove when rotationally taken out from the first threaded hole, so that the blade is taken down from the sliding rail in a sliding mode through a sliding groove formed in the lower portion of the blade to be replaced. The blade is convenient to replace, the blade is prevented from being damaged to affect the machining effect, and the price efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond tooling tools, in particular to a novel diamond tooling tool for slot milling. Background Art

[0002] A milling cutter is a cutting tool used in CNC machine tools. It is mainly divided into vertical pole type cutters, T-shaped pole type cutters and circular saw type cutters. When in use, it intermittently scrapes off a small amount of workpiece excess between each tooth. It is mainly used for workpiece grooving, cutting, surface shaping and hole opening. Diamond cutters are cutters with diamond forging as blades. They have extremely high hardness and wear resistance, high elastic modulus, high thermal conductivity and other characteristics.

[0003] A patent with announcement number CN 220547684 U discloses a slot milling tool, including a tool body, a plurality of slots are provided on the edge of the tool body, a tool head is installed in the slots, a coolant channel is provided on the tool body corresponding to each of the slots, a liquid inlet of the coolant channel is provided on the back of the tool body, a liquid outlet of the coolant channel is provided in the slot, and the liquid outlet of the coolant channel is arranged opposite to the cutting edge of the tool head. The slot milling tool has the advantages of being less likely to have slot wall burrs and edge collapse, having an auxiliary chip breaking function, and extending the service life.

[0004] However, since the blades in the existing slot milling tools are mainly fixed in the tool slots by welding or gluing, it is not easy to disassemble the blades when they are broken, which makes it inconvenient to replace the blades and affects the processing efficiency; the existing slot milling tools are mainly installed by multiple bolts, which makes it inconvenient to disassemble the tool body; therefore, a new diamond tool for slot milling is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and to address the problems existing in the prior art, the utility model proposes a new diamond tool for slot milling.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a new diamond tool for milling grooves described in the utility model comprises a saw disc, saw teeth and a mounting shaft; and the saw teeth are evenly distributed on the side curved surface of the saw disc, and the saw teeth are provided with fixing components, and the fixing components include mounting grooves, and the mounting grooves are arranged on the side of the saw teeth, and the mounting grooves in adjacent fixing components are mutually staggered and arranged on the other side opposite to the saw teeth, and the saw teeth are provided with arc angles on the side opposite to the mounting grooves, and two slide rails are symmetrically installed in the mounting groove, and a blade is arranged in the mounting groove, and two parallel blades are opened under the blade. A slide groove for sliding on two slide rails, a No. 1 threaded hole is penetrated on one side of the sawtooth with a circular arc angle, and the No. 1 threaded hole is penetrated and communicated with the mounting groove, the No. 1 threaded hole is penetrated and arranged in the mounting groove and a No. 1 and a half threaded groove is arranged, a corner of the blade is provided with a knife tip, a No. 2 and a half threaded groove is provided on the side opposite to the knife tip, and the No. 1 and a half threaded groove and the No. 2 and a half threaded groove can be combined into a complete threaded hole, a hexagonal threaded rod is penetrated in the No. 1 threaded hole, and the threaded end of the hexagonal threaded rod penetrates the No. 1 threaded hole and is arranged in the threaded hole combined with the No. 1 and a half threaded groove and the No. 2 and a half threaded groove;

[0007] A through slot No. 1 is provided through the center of the saw disc, a fixing column is provided through the through slot No. 1, a fixing disc is installed at one end of the fixing column, No. 2 pin holes are evenly distributed around the through slot No. 1 on the saw disc, pin rods that pass through the No. 2 pin holes are evenly installed on the fixing disc, a mounting hole for installing the fixing column is provided at the bottom end of the mounting shaft, pin rods for inserting the No. 1 pin hole are evenly distributed at the bottom end of the mounting shaft, a No. 2 threaded hole is provided at the top of the mounting hole, a threaded column is rotatably provided in the No. 2 threaded hole, and a No. 3 threaded hole is provided at the top of the fixing column, which cooperates to achieve the effect of easy replacement of the blade. Compared with traditional milling tools, it is more convenient to install and effectively improves the convenience of operation.

[0008] Preferably, the two slide rails are parallel to each other, the hexagonal threaded rod and the slide rails are parallel to each other, and the No. 1.5 thread groove is located on the inner wall of the mounting groove, which cooperates to achieve the function of fixing the blade so that the blade can be replaced when it is damaged.

[0009] Preferably, the diameter of the threaded hole formed by the combination of the No. 1 and a half thread grooves and the No. 2 and a half thread grooves is the same as the diameter of the No. 1 threaded hole, and the rotation trajectory of the blade tip with the central axis of the saw disk as the axis is located outside the rotation trajectory of the saw teeth with the central axis of the saw disk as the axis, thereby achieving the effect of fixing the saw disk and ensuring the cutting effect.

[0010] Preferably, the fixed column and the fixed disk are perpendicular to each other, the pin rod and the fixed column are parallel to each other, and the center line of the mounting hole coincides with the center line of the fixed column, thereby achieving the purpose of fixing the column for installation of the saw disk.

[0011] Preferably, the aperture of the No. 2 threaded hole is the same as the aperture of the No. 3 threaded hole, and a spring is provided in the No. 2 threaded hole, and the spring is located on the threaded column, which cooperates to ensure the installation stability of the saw disc and ensure the cutting effect.

[0012] Preferably, a hexagonal hole is provided at the bottom end of the threaded column, and a No. 2 through slot communicating with the No. 3 threaded hole is provided on the bottom side of the fixed plate, penetrating the fixed plate and the No. 2 through slot. The center line of the No. 2 through slot coincides with the center line of the hexagonal hole, and the center line of the threaded column coincides with the center line of the No. 3 threaded hole. The cooperation achieves the purpose of facilitating the replacement of the tool. Compared with traditional milling tools, it is more convenient to install and effectively improves the convenience of operation.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model can take out the blade from the threaded hole No. 1 by rotating the hexagonal threaded rod, and also from the threaded hole formed by the combination of the No. 1 and a half thread grooves and the No. 2 and a half thread grooves, so that the blade can be slid from the slide rail through the slide groove provided thereunder to be replaced, and then the intact blade can be slid back onto the slide rail through the slide groove, so that the threaded end of the No. 1 threaded hole can be rotated and screwed into the threaded hole formed by the combination of the No. 1 and a half thread grooves and the No. 2 and a half thread grooves, thereby facilitating the replacement of the blade, avoiding the influence of blade damage on the processing effect, and improving the price efficiency.

[0015] 2. The utility model sets a fixed plate with a saw disc under the mounting shaft, and sets the top of the fixed column through the No. 1 through slot and in the mounting hole, and sets the top of the pin rod through the No. 2 pin hole and in the No. 1 pin hole. When the threaded column moves downward to the No. 3 threaded hole on the fixed column, the fixed column will be fixed in the mounting hole. When the mounting shaft rotates, the saw disc placed on the fixed plate will be driven to rotate through the fixed column and the pin rod, thereby facilitating the replacement of the tool. Compared with the traditional milling tool, it is more convenient to install and effectively improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 is a schematic diagram of a first three-dimensional structure;

[0018] Figure 2 This is an enlarged schematic diagram of the cutaway main structure of the installation component;

[0019] Figure 3 It is a cutaway and enlarged schematic diagram of the main structure of the threaded column assembly;

[0020] Figure 4 It is a cutaway and enlarged schematic diagram of the installation shaft assembly structure;

[0021] Figure 5 It is an enlarged schematic diagram of the main structure of the saw disc;

[0022] Figure 6 It is an enlarged schematic diagram of the main structure of the sawtooth component;

[0023] Figure 7 This is an enlarged schematic diagram of the blade main structure.

[0024] In the figure: 1. saw disc; 2. saw teeth; 3. mounting groove; 4. arc angle; 5. slide rail; 6. blade; 601. blade tip; 7. slide groove; 8. No. 1 threaded hole; 9. No. 1 and a half threaded groove; 901. No. 2 and a half threaded groove; 10. hexagonal threaded rod; 11. No. 1 through groove; 12. fixing column; 13. fixing plate; 14. pin rod; 15. mounting shaft; 16. mounting hole; 17. No. 1 pin hole; 18. No. 2 threaded hole; 19. threaded column; 20. spring; 21. hexagonal hole; 22. No. 3 threaded hole; 23. No. 2 through groove; 24. No. 2 pin hole. DETAILED DESCRIPTION

[0025] 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 in 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.

[0026] See also Figure 1-7As shown, a new type of diamond tool for milling grooves includes a saw disk 1, saw teeth 2 and a mounting shaft 15; and the saw teeth 2 are evenly distributed on the side curved surface of the saw disk 1, and the saw teeth 2 are all provided with fixing components, and the fixing components include mounting grooves 3, and the mounting grooves 3 are provided on the side of the saw teeth 2, and the mounting grooves 3 in adjacent fixing components are mutually staggered and arranged on the other side opposite to the saw teeth 2, and the saw teeth 2 are provided with arc angles 4 on the side opposite to the mounting grooves 3, and two slide rails 5 are symmetrically installed in the mounting grooves 3, and a blade 6 is provided in the mounting grooves 3, and two slide grooves 7 for sliding on the two slide rails 5 are provided in parallel under the blade 6, and a No. 1 threaded hole 8 is provided through the side of the saw tooth 2 provided with the arc angle 4, and the No. 1 threaded hole 8 is connected to the mounting groove 3, and the No. 1 threaded hole 8 is provided through the mounting groove 3 and a No. 1 and a half threaded groove 9 is provided, A cutting tip 601 is provided at one corner of the blade 6, and a No. 2 and a half thread groove 901 is provided on the side of the blade 6 opposite to the cutting tip 601, and the No. 1 and a half thread groove 9 and the No. 2 and a half thread groove 901 can be assembled into a complete threaded hole, and a hexagonal threaded rod 10 is penetrated in the No. 1 threaded hole 8, and the threaded end of the hexagonal threaded rod 10 penetrates the No. 1 threaded hole 8 and is arranged in the threaded hole assembled by the No. 1 and a half thread groove 9 and the No. 2 and a half thread groove 901, the two slide rails 5 are parallel to each other, the hexagonal threaded rod 10 and the slide rail 5 are parallel to each other, the No. 1 and a half thread groove 9 is located on the inner wall of the mounting groove 3, the aperture of the threaded hole assembled by the No. 1 and a half thread groove 9 and the No. 2 and a half thread groove 901 is the same as the aperture of the No. 1 threaded hole 8, and the rotation trajectory of the cutting tip 601 with the central axis of the saw disk 1 as the axis is located outside the rotation trajectory of the saw tooth 2 with the central axis of the saw disk 1 as the axis.

[0027] During operation, since the blades in the existing milling tools are mainly fixed in the tool grooves by welding or gluing, it is not easy to disassemble the blades when they are broken, which makes it inconvenient to replace the blades, affecting the processing efficiency. In the present scheme, the saw disc 1 is driven to rotate by the mounting shaft 15 during cutting. When the saw disc 1 rotates, it will drive the saw teeth 2 thereon to rotate around, and the saw teeth 2 are all equipped with blades 6. The outer corners of the blades 6 are provided with tool tips 601, and the adjacent blades 6 are relatively staggered. When the blades 6 rotate with the saw teeth 2, the tool tips 601 are used to cut the workpiece. When the blade 6 is damaged, the hexagonal threaded rod 10 is rotated by using an hexagonal screwdriver to remove the hexagonal threaded rod 10 from the No. 1 threaded hole 8. When the hexagonal threaded rod 10 is rotated out of the No. 1 threaded hole 8 and taken out, it will also be removed from the No. 1 and a half threaded hole. The blade 6 is then removed from the guide rail 5 through the guide groove 7 provided thereunder for replacement. The good blade 6 is then slid back onto the guide rail 5 through the guide groove 7. At this time, the second and a half thread grooves 901 on the side of the blade 6 and the one and a half thread grooves 9 on the inner wall of the mounting groove 3 are reassembled into a complete threaded hole. The hexagonal threaded rod 10 is then rotated and installed into the one threaded hole 8, and the threaded end of the one threaded hole 8 is rotated and tightened into the threaded hole formed by the one and a half thread grooves 9 and the two and a half thread grooves 901. At this time, the blade 6 is fixed in the mounting groove 3 under the action of the hexagonal threaded rod 10, which achieves the effect of easy replacement of the blade, avoids blade damage affecting the processing effect, and improves price efficiency.

[0028] See also Figure 1-5As shown, a through slot No. 1 1 is formed through the center of the saw disc 1, a fixing column 12 is formed through the through slot No. 1 1, a fixing plate 13 is installed at one end of the fixing column 12, a No. 2 pin hole 24 is evenly distributed around the through slot No. 1 1 on the saw disc 1, a pin rod 14 that penetrates the No. 2 pin hole 24 is evenly distributed on the fixing plate 13, a mounting hole 16 for mounting the fixing column 12 is formed at the bottom end of the mounting shaft 15, a pin rod 14 for inserting the No. 1 pin hole 17 is evenly distributed at the bottom end of the mounting shaft 15, a No. 2 threaded hole 18 is formed at the top of the mounting hole 16, a threaded column 19 is rotatably provided in the No. 2 threaded hole 18, a No. 3 threaded hole 18 is formed at the top of the fixing column 12, and a No. 4 threaded hole 19 is formed at the bottom of the fixing column 12. The fixing column 12 and the fixing plate 13 are perpendicular to each other, the pin 14 and the fixing column 12 are parallel to each other, the center line of the mounting hole 16 coincides with the center line of the fixing column 12, the aperture of the No. 2 threaded hole 18 is the same as the aperture of the No. 3 threaded hole 22, a spring 20 is arranged in the No. 2 threaded hole 18, and the spring 20 is located on the threaded column 19, and a hexagonal hole 21 is provided at the bottom end of the threaded column 19, and a No. 2 through groove 23 is provided on the bottom side of the fixing plate 13, which penetrates the fixing plate 13 and the No. 2 through groove 23 and communicates with the No. 3 threaded hole 22, the center line of the No. 2 through groove 23 coincides with the center line of the hexagonal hole 21, and the center line of the threaded column 19 coincides with the center line of the No. 3 threaded hole 22.

[0029] During operation, the existing milling cutter is mainly installed by multiple bolts, which makes it inconvenient to disassemble the cutter body. In this scheme, in the initial state, the No. 2 threaded hole 18 will always push the threaded column 19 downward, by placing the saw disc 1 on the fixed disc 13, and making the saw disc 1 be sleeved on the outside of the fixed column 12 through the No. 1 through slot 11, and making the pin rod 14 pass through the No. 2 pin hole 24, then the fixed disc 13 with the saw disc 1 is placed under the installation shaft 15, and the top end of the fixed column 12 is passed through the No. 1 through slot 11 and set in the installation hole 16, and the top end of the pin rod 14 is passed through the No. 2 pin hole 24 and set in the No. 1 pin hole 17, and then use the hexagonal screwdriver to pass through the No. 2 through slot 23 and insert it into the hexagonal hole 21, and then turn the hexagonal screwdriver to make the threaded column 19 rotate in the No. 2 threaded hole 18, When the threaded column 19 is rotated, it moves downward. When the threaded column 19 moves downward to the No. 3 threaded hole 22 on the fixing column 12, the fixing column 12 will be fixed in the mounting hole 16. At this time, the threaded column 19 is prevented from rotating upward under the action of the spring 20. At this time, when the mounting shaft 15 is rotated, the saw disk 1 placed on the fixing disk 13 will be driven to rotate through the fixing column 12 and the pin rod 14. When the saw disk 1 needs to be removed, the threaded column 19 is rotated upward in the No. 2 threaded hole 18 by a hexagonal screwdriver, so that the threaded column 19 moves upward out of the No. 3 threaded hole 22. At this time, the fixing column 12 can be taken out of the mounting hole 16, and the saw disk 1 can be removed from the fixing disk 13. The cooperation achieves the effect of facilitating the replacement of the tool. Compared with the traditional milling tool, it is more convenient to install and effectively improves the convenience of operation.

[0030] Working principle: during cutting, the saw disc 1 is driven to rotate by the mounting shaft 15, and when the saw disc 1 rotates, the saw teeth 2 thereon are driven to rotate around, and blades 6 are installed on the saw teeth 2, and a knife tip 601 is arranged at the outer corner of the blade 6, and adjacent blades 6 are arranged in a relatively staggered manner. When the blade 6 rotates with the saw teeth 2, the workpiece is cut by the knife tip 601. When the blade 6 is damaged, the hexagonal threaded rod 10 is rotated by using a hexagonal screwdriver to remove the hexagonal threaded rod 10 from the No. 1 threaded hole 8. When the hexagonal threaded rod 10 is rotated and removed from the No. 1 threaded hole 8, it is also taken out from the threaded hole formed by the combination of the No. 1 and a half thread grooves 9 and the No. 2 and a half thread grooves 901, and then the blade 6 is slid, The blade 6 is slid off the slide rail 5 through the slide groove 7 provided thereunder for replacement, and the intact blade 6 is then slid back onto the slide rail 5 through the slide groove 7. At this time, the No. 2 and a half thread grooves 901 on the side of the blade 6 and the No. 1 and a half thread grooves 9 on the inner wall of the mounting groove 3 will be reassembled into a complete threaded hole, and then the hexagonal threaded rod 10 is rotated and installed into the No. 1 threaded hole 8, and the threaded end of the No. 1 threaded hole 8 is rotated and tightened into the threaded hole composed of the No. 1 and a half thread grooves 9 and the No. 2 and a half thread grooves 901. At this time, the blade 6 is fixed in the mounting groove 3 under the action of the hexagonal threaded rod 10, which achieves the effect of easy replacement of the blade, avoids blade damage affecting the processing effect, and improves price efficiency.

[0031] In the initial state, the No. 2 threaded hole 18 will always push the threaded column 19 downward, by placing the saw disk 1 on the fixed disk 13, and making the saw disk 1 sleeved on the outside of the fixed column 12 through the No. 1 through slot 11, and making the pin rod 14 pass through the No. 2 pin hole 24, then the fixed disk 13 with the saw disk 1 is set under the mounting shaft 15, and the top of the fixed column 12 is passed through the No. 1 through slot 11 and set in the mounting hole 16, and the top of the pin rod 14 is passed through the No. 2 pin hole 24 and set in the No. 1 pin hole 17, and then use an inner hexagon screwdriver to pass through the No. 2 through slot 23 and insert it into the inner hexagon hole 21, and then turn the inner hexagon screwdriver to make the threaded column 19 rotate in the No. 2 threaded hole 18, so that the threaded column 19 moves downward when it rotates, when the threaded column 19 When it moves downward to the No. 3 threaded hole 22 on the fixing column 12, the fixing column 12 will be fixed in the mounting hole 16, and at this time, the threaded column 19 is prevented from rotating and moving upward under the action of the spring 20. At this time, when the mounting shaft 15 rotates, the saw disk 1 placed on the fixed disk 13 will be driven to rotate through the fixing column 12 and the pin rod 14. When the saw disk 1 needs to be removed, the threaded column 19 is rotated upward in the No. 2 threaded hole 18 by a hexagonal screwdriver, so that the threaded column 19 moves upward out of the No. 3 threaded hole 22. At this time, the fixing column 12 can be taken out from the mounting hole 16, and the saw disk 1 can be removed from the fixed disk 13. The cooperation achieves the effect of facilitating the replacement of the tool. Compared with the traditional milling tool, it is more convenient to install and effectively improves the convenience of operation.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A new type of diamond tool for slot milling, characterized in that: The invention comprises a saw disc (1), saw teeth (2) and a mounting shaft (15); the saw teeth (2) are evenly distributed on the side curved surface of the saw disc (1); the saw teeth (2) are each provided with a fixing assembly; the fixing assembly comprises a mounting groove (3); the mounting groove (3) is provided on the side of the saw teeth (2); the mounting grooves (3) in adjacent fixing assemblies are mutually offset and provided on the other side opposite to the saw teeth (2); the saw teeth (2) are provided with an arc angle (4) on the side opposite to the mounting groove (3); two slide rails (5) are symmetrically provided in the mounting groove (3); a blade (6) is provided in the mounting groove (3); two slide grooves (7) for sliding on the two slide rails (5) are provided in parallel under the blade (6); the saw teeth (2) are provided with an arc angle (4); A No. 1 threaded hole (8) is provided on one side of the blade (4), and the No. 1 threaded hole (8) is connected to the mounting groove (3), the No. 1 threaded hole (8) is provided in the mounting groove (3) and a No. 1 and a half threaded groove (9) is provided, a blade tip (601) is provided at one corner of the blade (6), a No. 2 and a half threaded groove (901) is provided on the side of the blade (6) opposite to the blade tip (601), and the No. 1 and a half threaded groove (9) and the No. 2 and a half threaded groove (901) can be combined into a complete threaded hole, a hexagonal threaded rod (10) is provided in the No. 1 threaded hole (8), and the threaded end of the hexagonal threaded rod (10) is provided in the threaded hole formed by combining the No. 1 and a half threaded groove (9) and the No. 2 and a half threaded groove (901); A through slot (11) is provided at the center of the saw disc (1), a fixing column (12) is provided in the through slot (11), a fixing disc (13) is installed at one end of the fixing column (12), a number two pin holes (24) are evenly distributed around the through slot (11) on the saw disc (1), a pin rod (14) that passes through the number two pin holes (24) is evenly installed on the fixing disc (13), a mounting hole (16) for mounting the fixing column (12) is provided at the bottom end of the mounting shaft (15), a pin rod (14) for inserting the number one pin hole (17) is evenly distributed at the bottom end of the mounting shaft (15), a number two threaded hole (18) is provided at the top of the mounting hole (16), a threaded column (19) is rotatably provided in the number two threaded hole (18), and a number three threaded hole (22) is provided at the top of the fixing column (12).

2. A new diamond tool for slot milling according to claim 1, characterized in that: The two slide rails (5) are parallel to each other, the hexagonal threaded rod (10) and the slide rail (5) are parallel to each other, and the one and a half thread grooves (9) are located on the inner side wall of the mounting groove (3).

3. A new diamond tool for slot milling according to claim 1, characterized in that: The diameter of the threaded hole formed by combining the No. 1 and a half thread grooves (9) and the No. 2 and a half thread grooves (901) is the same as the diameter of the No. 1 threaded hole (8), and the rotation trajectory of the blade tip (601) with the central axis of the saw disc (1) as the axis is located outside the rotation trajectory of the saw teeth (2) with the central axis of the saw disc (1) as the axis.

4. A new diamond tool for slot milling according to claim 1, characterized in that: The fixing column (12) and the fixing plate (13) are perpendicular to each other, the pin rod (14) and the fixing column (12) are parallel to each other, and the center line of the mounting hole (16) coincides with the center line of the fixing column (12).

5. A new diamond tool for slot milling according to claim 1, characterized in that: The diameter of the second threaded hole (18) is the same as the diameter of the third threaded hole (22). A spring (20) is arranged in the second threaded hole (18), and the spring (20) is located on the threaded column (19).

6. A new diamond tool for slot milling according to claim 5, characterized in that: A hexagonal hole (21) is formed at the bottom end of the threaded column (19); a second through slot (23) communicating with the third threaded hole (22) is formed on the bottom side of the fixing plate (13) and passes through the fixing plate (13) and the second through slot (23); a center line of the second through slot (23) coincides with a center line of the hexagonal hole (21); and a center line of the threaded column (19) coincides with a center line of the third threaded hole (22).

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