Diamond crushing blade machining method

Abstract

The invention discloses a diamond crushing blade machining method and aims to overcome the defects that a diamond crushing blade is low in machining efficiency, prone to abrasion and short in service life. The method comprises the following steps that S1, a plurality of blade bodies arranged at intervals in the circumferential direction are cut at the edge of a blade disc body; s2, heat treatment of the blade disc body; s3, a counter bore is machined in the blade body; s4, grinding the surface of the blade body to remove an oxide layer; s5, trimming the edge contour of the blade body; s6, a tooth holder is machined at the end of the blade body; s7, the diamond tool bit is welded to the position of the tooth holder; s8, the diamond tool bit is trimmed; and S9, all the blade bodies are cut off. According to the diamond crushing blade machining method, the diamond crushing blade machining error is small, multiple diamond crushing blades can be machined at a time, the machining efficiency is high, the machined diamond crushing blades are resistant to abrasion and long in service life, and the cutting efficiency is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of cutting tools, and more particularly to a method for processing a diamond crushing blade. Background Art

[0002] At present, when processing diamond crushing tools, it is necessary to process the blades. The common processing method is to directly laser cut the finished saw blade according to the shape of the blade. During the dense tooth positioning processing, the error is large and the blades are often scrapped. In addition, the processed blades are easy to wear and have a short service life, which affects the cutting efficiency. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the present invention provides a method for processing a diamond crushing blade. The processing error of the diamond crushing blade is small, multiple diamond crushing blades can be processed at one time, and the processing efficiency is high. The processed diamond crushing blade is wear-resistant and has a long service life, thereby ensuring the cutting efficiency.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a method for processing a diamond crushing blade, comprising the following steps: S1, cutting a plurality of blade bodies arranged at circumferential intervals on the edge of a blade disc; S2, heat treating the blade disc; S3, machining a countersink on the blade body; S4, grinding the surface of the blade body to remove the oxide layer; S5, trimming the edge profile of the blade body; S6, machining a tooth seat at the end of the blade body; S7, welding a diamond cutter head to the tooth seat position; S8, trimming the diamond cutter head; S9, cutting off all the blade bodies.

[0005] Several blade bodies arranged at circumferential intervals are cut from the edge of the blade disc to form the blade body. Multiple blade bodies can be processed at one time, which is highly efficient. During processing, the contour line is first cut on the edge of the blade disc to form several blade bodies at circumferential intervals on the edge of the blade disc. At this time, the preliminary processing of the blade body contour is completed. After that, the blade disc is heat treated to ensure that the HRC hardness of the blade disc can reach 42-50. The microstructure of the surface or internal of the metal material is changed by heat treatment to improve the mechanical properties. Then a countersink is processed on the blade body to facilitate the subsequent assembly and use of the blade body. The surface of the blade body is ground to remove the oxide layer, which is beneficial to improve the quality of the blade body. The edge contour of the blade body is trimmed and the tooth seat is processed to ensure the dimensional accuracy of the blade body. Moreover, a circle of the blade body is trimmed at the same time, which is beneficial to reduce errors and improve accuracy. The diamond cutter head is welded to the tooth seat position, and the connection is reliable. Trimming the diamond cutter head is beneficial to ensure the cutting performance of the diamond cutter head. The diamond cutter head is welded on the blade body, which has good wear resistance, little wear during material cutting and long service life.

[0006] The diamond crushing blade processing method of the patent application reduces the processing error of the diamond crushing blade, and multiple diamond crushing blades can be processed at one time, with high processing efficiency. The processed diamond crushing blade is wear-resistant and has a long service life, thereby ensuring cutting efficiency.

[0007] Preferably, in S1, a plurality of separation grooves spaced apart are cut on the edge of the blade disc to form a plurality of blade bodies; in S5, two arc-shaped side edges are cut and trimmed on both sides at the bottom of the separation groove to form a narrow connecting rib between the bottom of the blade body and the blade disc.

[0008] A plurality of separation grooves are cut at intervals on the edge of the blade disc body to facilitate the formation of a circle of blade bodies. The two arc-shaped sides of the bottom of the separation groove are trimmed to reduce the width of the connecting ribs, making it easier to cut the blade body from the blade disc body later.

[0009] Preferably, during the S3 countersinking process, a countersunk hole is firstly drilled on the blade body, and then the countersunk hole is bored to form the countersunk hole.

[0010] When processing countersinks, drilling is performed first and then boring is performed to form a countersink, and the processing is accurate and reliable.

[0011] Preferably, both S1 and S9 are cut by laser cutting.

[0012] Laser cutting has high precision and high speed, and can perform both two-dimensional and three-dimensional cutting.

[0013] Preferably, the S8 diamond cutter head is trimmed by electrical discharge machining.

[0014] The diamond cutter head is trimmed by electric discharge machining, which is easy to operate and has good trimming effect.

[0015] Preferably, the tooth seat is arranged on the side of the end of the blade body facing the cutting direction.

[0016] When the blade body is used for cutting operation, the resistance exerted on the diamond cutter head acts on the tooth seat, and the tooth seat provides a reverse force to the diamond cutter head, thereby ensuring a reliable connection between the diamond cutter head and the tooth seat.

[0017] Preferably, in S6, a chip guide groove having a concave arc shape is machined on one side of the blade body facing the cutting direction.

[0018] When the blade body is used for cutting operations, the chip guide groove acts as a chip guide, so that the chips can be discharged quickly, thereby improving the sawing effect.

[0019] Preferably, in S5, a chip guide edge is trimmed at the end edge of the blade body, and the chip guide edge is tilted away from the cutting direction and tilted toward the center of the blade disc.

[0020] The chip guide edge is inclined to reduce the contact area between the end of the blade body and the cut material, which is beneficial to improving the sawing effect.

[0021] Preferably, during S1 and S5, the blade disc body is rotatably installed between two positioning discs, which clamp and position the blade disc body. A process notch is set on the edge of the positioning disc. During S1 and S5, the position of the blade disc body to be cut is rotated to the position corresponding to the process notch.

[0022] During the contour processing and trimming operations in the S1 and S5 processes, the blade disc is clamped and positioned between the two positioning discs to prevent the blade body from being deformed. Since the width of the connecting rib between the blade body and the blade disc is small, it is easy to deform. In this solution, only the position to be cut is rotated to the position corresponding to the process notch, that is, only the position to be processed of the blade disc is exposed, while other positions are clamped and positioned, thus avoiding the deformation of the blade body during the processing.

[0023] Preferably, during S3, the blade body is clamped between two clamping plates for positioning, avoidance notches are provided on the clamping plates corresponding to the blade body, and countersinking is performed through the avoidance notches during S3.

[0024] During the countersinking process, the blade body is clamped between the two chucks for positioning, which prevents the blade body from shaking and offsetting, ensuring the accuracy of the countersinking process. At the same time, it prevents the blade body from deforming during the countersinking process, ensuring the stability of the blade body structure.

[0025] Compared with the prior art, the invention has the following beneficial effects: (1) The diamond crushing blade processing method of the patent application reduces the processing error of the diamond crushing blade, and multiple diamond crushing blades can be processed at one time, with high processing efficiency. The processed diamond crushing blade is wear-resistant and has a long service life, thereby ensuring cutting efficiency; (2) When the blade body is subjected to contour processing and trimming operations, the blade disc is clamped and positioned between two positioning discs to prevent the blade body from being deformed; (3) During the countersinking process, the blade disc is clamped and positioned between two chuck discs to prevent the blade body from shaking and deviating, thereby ensuring the accuracy of the countersinking process. At the same time, the blade body is prevented from being deformed during the countersinking process, thereby ensuring the stability of the blade body structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the processing of the blade body of Example 1 of the present invention.

[0027] Figure 2 It is a partial enlarged view of the connection between the blade body and the blade disc body of the present invention.

[0028] Figure 3It is a schematic diagram of the processing of the blade body of Example 2 of the present invention.

[0029] Figure 4 It is a schematic diagram of the positioning plate structure of the present invention.

[0030] Figure 5 It is a structural diagram of a positioning disk clamping a blade disk body of the present invention.

[0031] Figure 6 It is a structural diagram of the connection of two positioning plates of the present invention.

[0032] Figure 7 It is a schematic diagram of the processing of the blade body of Example 3 of the present invention.

[0033] Figure 8 It is a structural diagram of the chuck plate of the present invention.

[0034] In the figure: 1. blade plate body, 2. blade body, 3. connecting hole, 4. separation groove, 5. countersunk hole, 6. clamping plate, 7. avoidance gap, 8. locking hole, 9. side, 10. connecting rib, 11. chip guide edge, 12. tooth seat, 13. chip guide groove, 14. diamond cutter head, 15. positioning plate, 16. process gap, 17. connecting column, 18. cylindrical section, 19. anti-rotation section, 20. connecting section, 21. anti-rotation hole, 22. transmission tooth, 23. drive motor, 24. driving gear, 25. positioning column, 26. positioning section, 27. positioning hole. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: A method for processing a diamond crushing blade (see Figure 1 , Figure 2 ), including the following steps: S1, cutting a plurality of blade bodies 2 spaced circumferentially at the edge of the blade disc body 1; the blade disc body 1 is a circular structure, a connecting hole 3 is set in the center of the blade disc body 1, and the blade bodies 2 are evenly distributed circumferentially. In S1, a plurality of separation grooves 4 spaced at intervals are cut at the edge of the blade disc body 1 to form a plurality of blade bodies 2, and the width of the separation grooves 4 gradually decreases toward the center of the blade body 2. The edge of the blade disc body is cut by laser cutting, thereby cutting the separation grooves 4, and during the cutting process, the blade disc body 1 is clamped and positioned through the central connecting hole 3.

[0036] S2, heat treatment of the blade disc body 1; the blade disc body 1 is made of high-speed steel. During the heat treatment, the blade disc body 1 is placed in a vacuum heating furnace for heating, and quenching and tempering treatments are completed in sequence. During quenching, it is heated to 1200 degrees Celsius and kept warm in the vacuum heating furnace for 50 minutes. Then, the blade disc body 1 is taken out and placed in a water bath for water quenching, and then quickly taken out and placed in an oil bath for oil quenching, thereby improving the hardness and wear resistance of the blade disc body 1. During tempering, the blade disc body 1 is first placed in a vacuum heating furnace and heated to 600 degrees Celsius. After keeping warm for 20 minutes, it is filled with nitrogen and cooled to room temperature. It is then heated to 550 degrees Celsius and kept warm for 20 minutes. After that, it is filled with nitrogen and cooled to room temperature to complete the secondary tempering treatment. The blade disc body 1 that has undergone secondary tempering can eliminate internal stress, thereby improving the stability of the structure and making the blade body 2 less likely to deform during use.

[0037] S3, a countersink 5 is processed on the blade body 2; When processing the countersink 5 in S3, a countersink pore is first drilled on the blade body 2, and then the countersink pore is bored to form the countersink 5. The processing of the countersink 5 is carried out in two steps. The first step is to clamp the blade body 1 to the turntable seat on the drilling machine for positioning. The turntable seat is driven to rotate by a stepper motor, which can accurately control the rotation angle of the turntable seat. A sunken clearance groove is set on the turntable seat and at the position corresponding to the countersink 5 on each blade body 2. The clearance groove provides running space for the drill bit to avoid interference. After the blade body 2 is aligned, the drilling operation is performed. After each drilling operation on a blade body 2 is completed, the stepper motor drives the turntable seat to rotate so that the blade body 1 rotates an angle, and then the next blade body 2 is aligned with the drilling position, and the drilling operation of the next blade body 2 is performed. In this way, the drilling operation of all blade bodies 2 is completed. The second step is to perform the boring operation. The blade disc 1 is clamped to the rotating seat on the boring machine. The rotating seat is driven by a stepper motor to rotate, which can accurately control the rotation angle of the rotating seat. A sunken avoidance groove is set on the rotating seat and at the corresponding position of the countersink 5 on each blade body 2. The avoidance groove provides running space for the boring cutter head to avoid interference. The boring operation is performed after the blade body 2 is aligned. After each boring operation on a blade body 2 is completed, the stepper motor drives the rotating seat to rotate so that the blade disc 1 rotates an angle, and then the next blade body 2 is aligned with the boring position, and the boring operation of the next blade body 2 is performed. In this way, the boring operation of all blade bodies 2 is completed, and the entire countersink 5 processing step is completed.

[0038] S4, grinding the surface of the blade body 2 to remove the oxide layer; the blade disc body 1 is loaded onto the grinding machine, and the grinding head on the grinding machine rotates and moves while contacting and grinding with the surface of the blade body 2 to remove the oxide layer on the surface.

[0039] S5, trimming the edge contour of the blade body 2; in S5, two arc-shaped side edges 9 are cut and trimmed on both sides of the bottom of the separation groove 4, so that a narrow connecting rib 10 is formed between the bottom of the blade body 2 and the blade disc body 1. The radial thickness of the connecting rib 10 is 0.5-1mm, and the circumferential length of the connecting diameter is 3-6mm. The two arc-shaped side edges 9 are trimmed on both sides of the bottom of the separation groove 4, thereby reducing the width of the connecting rib 10, which is convenient for the subsequent cutting of the blade body 2 from the blade disc body 1. In S5, a chip guide edge 11 is trimmed at the end edge of the blade body 2. The chip guide edge 11 is tilted away from the cutting direction and tilted toward the center of the blade disc body 1. After the chip guide edge 11 is trimmed, the end of the blade body 2 facing the cutting direction forms a tip. The inclined setting of the chip guide edge 11 can reduce the contact area between the end of the blade body 2 and the cut material, which is beneficial to improving the sawing effect.

[0040] S6, a tooth seat 12 is machined at the end of the blade body 2; the tooth seat 12 is arranged on the side of the end of the blade body 2 facing the cutting direction. The tooth seat 12 is placed at the tip of the edge of the end of the blade body 2 facing the cutting direction, and a concave arc-shaped chip guide groove 13 is machined on the side 9 of the blade body 2 facing the cutting direction. When the blade body 2 is used for cutting, the chip guide groove 13 plays a role in guiding chips, so that the chips can be discharged quickly, improving the sawing effect.

[0041] S7, welding the diamond bit 14 to the tooth seat 12; the tip of the diamond bit 14 protrudes out of the tip of the end edge of the blade body 2 facing the cutting direction.

[0042] S8, trimming the diamond cutter head 14: the diamond cutter head 14 is trimmed by electric discharge machining. The trimming of all the diamond cutter heads 14 is completed at one time, and the working efficiency is high.

[0043] S9, cutting all the blade bodies 2 by laser cutting.

[0044] Several blade bodies 2 arranged at circumferential intervals are cut from the edge of the blade disc body 1 to form the blade body 2. Multiple blade bodies 2 can be processed at one time, and the work efficiency is high. During processing, the contour line is first cut on the edge of the blade disc body 1, so that the edge of the blade disc body 1 forms several circumferentially spaced blade bodies 2. At this time, the preliminary processing of the contour of the blade body 2 is completed. After that, the blade disc body 1 is heat treated to ensure that the HRC hardness of the blade disc body 1 can reach 42-50. The mechanical properties are improved by changing the microstructure of the surface or inside of the metal material through heat treatment. Then, a countersink 5 is processed on the blade body 2 to facilitate the subsequent assembly and use of the blade body 2. The surface of the blade body 2 is ground to remove the oxide layer, which is beneficial to improve the quality of the blade body 2. The edge contour of the blade body 2 is trimmed, and the tooth seat 12 is processed to ensure the dimensional accuracy of the blade body 2. Moreover, a circle of the blade body 2 is trimmed at the same time, which is beneficial to reduce errors and improve accuracy. The diamond bit 14 is welded to the tooth seat 12 position, and the connection is reliable. Trimming the diamond cutter head 14 is beneficial to ensuring the cutting performance of the diamond cutter head 14. The diamond cutter head 14 is welded on the blade body 2, which has good wear resistance, small wear during material cutting, and long service life.

[0045] Example 2: A method for processing a diamond crushing blade (see Figures 3 to 6 ), including the following steps: S1, cutting a plurality of blade bodies 2 spaced circumferentially at the edge of the blade disc body 1; the blade disc body 1 is a circular structure, a connecting hole 3 is set in the center of the blade disc body 1, and the blade bodies 2 are evenly distributed circumferentially. In S1, a plurality of separation grooves 4 spaced at intervals are cut at the edge of the blade disc body 1 to form a plurality of blade bodies 2, and the width of the separation grooves 4 gradually decreases toward the center of the blade body 2. The edge of the blade disc body is cut by laser cutting, thereby cutting the separation grooves 4, and during the cutting process, the blade disc body 1 is clamped and positioned through the central connecting hole 3.

[0046] S2, heat treatment of the blade disc body 1; the blade disc body 1 is made of high-speed steel. During the heat treatment, the blade disc body 1 is placed in a vacuum heating furnace for heating, and quenching and tempering treatments are completed in sequence. During quenching, it is heated to 1200 degrees Celsius and kept warm in the vacuum heating furnace for 50 minutes. Then, the blade disc body 1 is taken out and placed in a water bath for water quenching, and then quickly taken out and placed in an oil bath for oil quenching, thereby improving the hardness and wear resistance of the blade disc body 1. During tempering, the blade disc body 1 is first placed in a vacuum heating furnace and heated to 600 degrees Celsius. After keeping warm for 20 minutes, it is filled with nitrogen and cooled to room temperature. It is then heated to 550 degrees Celsius and kept warm for 20 minutes. After that, it is filled with nitrogen and cooled to room temperature to complete the secondary tempering treatment. The blade disc body 1 that has undergone secondary tempering can eliminate internal stress, thereby improving the stability of the structure and making the blade body 2 less likely to deform during use.

[0047] S3, a countersink 5 is processed on the blade body 2; When processing the countersink 5 in S3, a countersink pore is first drilled on the blade body 2, and then the countersink pore is bored to form the countersink 5. The processing of the countersink 5 is carried out in two steps. The first step is to clamp the blade body 1 to the turntable seat on the drilling machine for positioning. The turntable seat is driven to rotate by a stepper motor, which can accurately control the rotation angle of the turntable seat. A sunken clearance groove is set on the turntable seat and at the position corresponding to the countersink 5 on each blade body 2. The clearance groove provides running space for the drill bit to avoid interference. After the blade body 2 is aligned, the drilling operation is performed. After each drilling operation on a blade body 2 is completed, the stepper motor drives the turntable seat to rotate so that the blade body 1 rotates an angle, and then the next blade body 2 is aligned with the drilling position, and the drilling operation of the next blade body 2 is performed. In this way, the drilling operation of all blade bodies 2 is completed. The second step is to perform the boring operation. The blade disc 1 is clamped to the rotating seat on the boring machine. The rotating seat is driven by a stepper motor to rotate, which can accurately control the rotation angle of the rotating seat. A sunken avoidance groove is set on the rotating seat and at the corresponding position of the countersink 5 on each blade body 2. The avoidance groove provides running space for the boring cutter head to avoid interference. The boring operation is performed after the blade body 2 is aligned. After each boring operation on a blade body 2 is completed, the stepper motor drives the rotating seat to rotate so that the blade disc 1 rotates an angle, and then the next blade body 2 is aligned with the boring position, and the boring operation of the next blade body 2 is performed. In this way, the boring operation of all blade bodies 2 is completed, and the entire countersink 5 processing step is completed.

[0048] S4, grinding the surface of the blade body 2 to remove the oxide layer; the blade disc body 1 is loaded onto the grinding machine, and the grinding head on the grinding machine rotates and moves while contacting and grinding with the surface of the blade body 2 to remove the oxide layer on the surface.

[0049] S5, trimming the edge contour of the blade body 2; in S5, two arc-shaped side edges 9 are cut and trimmed on both sides of the bottom of the separation groove 4, so that a narrow connecting rib 10 is formed between the bottom of the blade body 2 and the blade disc body 1. The radial thickness of the connecting rib 10 is 0.5-1mm, and the circumferential length of the connecting diameter is 3-6mm. The two arc-shaped side edges 9 are trimmed on both sides of the bottom of the separation groove 4, thereby reducing the width of the connecting rib 10, which is convenient for the subsequent cutting of the blade body 2 from the blade disc body 1. In S5, a chip guide edge 11 is trimmed at the end edge of the blade body 2. The chip guide edge 11 is tilted away from the cutting direction and tilted toward the center of the blade disc body 1. After the chip guide edge 11 is trimmed, the end of the blade body 2 facing the cutting direction forms a tip. The inclined setting of the chip guide edge 11 can reduce the contact area between the end of the blade body 2 and the cut material, which is beneficial to improving the sawing effect.

[0050] S6, a tooth seat 12 is machined at the end of the blade body 2; the tooth seat 12 is arranged on the side of the end of the blade body 2 facing the cutting direction. The tooth seat 12 is placed at the tip of the edge of the end of the blade body 2 facing the cutting direction, and a concave arc-shaped chip guide groove 13 is machined on the side 9 of the blade body 2 facing the cutting direction. When the blade body 2 is used for cutting, the chip guide groove 13 plays a role in guiding chips, so that the chips can be discharged quickly, improving the sawing effect.

[0051] S7, welding the diamond bit 14 to the tooth seat 12; the tip of the diamond bit 14 protrudes out of the tip of the end edge of the blade body 2 facing the cutting direction.

[0052] S8, trimming the diamond cutter head 14: the diamond cutter head 14 is trimmed by electric discharge machining. The trimming of all the diamond cutter heads 14 is completed at one time, and the working efficiency is high.

[0053] S9, cutting all the blade bodies 2 by laser cutting.

[0054] During the processes S1 and S5, the blade disc body 1 is rotated and installed between the two positioning discs 15. The two positioning discs 15 clamp and position the blade disc body 1. A process notch 16 is set on the edge of the positioning disc 15. During the processes S1 and S5, the position to be cut of the blade disc body 1 is rotated to the position corresponding to the process notch 16. A connecting column 17 is set in the middle of the lower positioning disc 15. The outer wall of the connecting column 17 includes a cylindrical section 18, an anti-rotation section 19 and a connecting section 20. The anti-rotation section 19 is placed between the cylindrical section and the connecting section 20. The cylindrical section is movable and fitted with a rotating sleeve. An anti-rotation hole 21 is set on the upper positioning disc 15. The anti-rotation hole 21 and the anti-rotation section 19 are both polygonal structures. The anti-rotation hole 21 and the anti-rotation section 19 are adapted to be fitted and connected. A locking screw sleeve is connected to the connecting section 20, and the locking screw sleeve is pressed tightly on the upper positioning disc 15. The connection hole 3 is a polygonal structure at the center of the blade disc body 1. The outer wall of the rotating sleeve includes a positioning section 26 and a transmission section. The positioning section 26 is a polygonal structure. The connection hole 3 is set at the center of the blade disc body 1 and is connected with the positioning section 26. A circle of transmission teeth 22 is set on the transmission section. A driving motor 23 is installed on the positioning disc 15 below. A driving gear 24 is installed on the output shaft of the driving motor 23. The driving gear 24 is meshed with the transmission teeth 22 for transmission. The edges of the upper and lower positioning discs 15 extend out of the outer ends of the blade body 2, so that the blade body 2 can be completely clamped. A plurality of positioning columns 25 are connected between the edges of the upper and lower positioning discs 15. A positioning section 26 is set in the middle of the positioning column 25. Positioning holes 27 are set on the positioning disc 15 and corresponding to the positioning column 25. The outer diameter of the positioning section 26 is larger than the inner diameter of the positioning hole 27. The two ends of the positioning column 25 pass through the two positioning holes 27 and are locked and positioned by locking nuts. The end faces of the two positioning discs 15 are respectively abutted against the two ends of the positioning section 26 to achieve positioning. The positioning column 25 is provided to control the gap between the two positioning disks 15 to prevent the blade disk body 1 from being pinched.

[0055] When the contour processing and trimming operations are performed in the S1 and S5 processes, the driving motor 23 drives the rotating sleeve to rotate, thereby driving the blade disc body 1 to rotate. When the position to be cut of the blade disc body 1 is rotated to the position corresponding to the process notch 16, laser cutting is performed. The blade disc body 1 is clamped and positioned between the two positioning discs 15 to prevent the blade body 2 from being deformed. Since the connecting rib 10 between the blade body 2 and the blade disc body 1 is small in width, it is easy to deform. In this solution, only the position to be cut is rotated to the position corresponding to the process notch 16, that is, only the position to be processed of the blade disc body 1 is exposed, and other positions are clamped and positioned, thereby avoiding deformation of the blade body 2 during processing.

[0056] Several blade bodies 2 arranged at circumferential intervals are cut from the edge of the blade disc body 1 to form the blade body 2. Multiple blade bodies 2 can be processed at one time, and the work efficiency is high. During processing, the contour line is first cut on the edge of the blade disc body 1, so that the edge of the blade disc body 1 forms several circumferentially spaced blade bodies 2. At this time, the preliminary processing of the contour of the blade body 2 is completed. After that, the blade disc body 1 is heat treated to ensure that the HRC hardness of the blade disc body 1 can reach 42-50. The mechanical properties are improved by changing the microstructure of the surface or inside of the metal material through heat treatment. Then, a countersink 5 is processed on the blade body 2 to facilitate the subsequent assembly and use of the blade body 2. The surface of the blade body 2 is ground to remove the oxide layer, which is beneficial to improve the quality of the blade body 2. The edge contour of the blade body 2 is trimmed, and the tooth seat 12 is processed to ensure the dimensional accuracy of the blade body 2. Moreover, a circle of the blade body 2 is trimmed at the same time, which is beneficial to reduce errors and improve accuracy. The diamond bit 14 is welded to the tooth seat 12 position, and the connection is reliable. Trimming the diamond cutter head 14 is beneficial to ensuring the cutting performance of the diamond cutter head 14. The diamond cutter head 14 is welded on the blade body 2, which has good wear resistance, small wear during material cutting, and long service life.

[0057] Example 3: A method for processing a diamond crushing blade (see Figures 3 to 8 ), including the following steps: S1, cutting a plurality of blade bodies 2 spaced circumferentially at the edge of the blade disc body 1; the blade disc body 1 is a circular structure, a connecting hole 3 is set in the center of the blade disc body 1, and the blade bodies 2 are evenly distributed circumferentially. In S1, a plurality of separation grooves 4 spaced at intervals are cut at the edge of the blade disc body 1 to form a plurality of blade bodies 2, and the width of the separation grooves 4 gradually decreases toward the center of the blade body 2. The edge of the blade disc body is cut by laser cutting, thereby cutting the separation grooves 4, and during the cutting process, the blade disc body 1 is clamped and positioned through the central connecting hole 3.

[0058] S2, heat treatment of the blade disc body 1; the blade disc body 1 is made of high-speed steel. During the heat treatment, the blade disc body 1 is placed in a vacuum heating furnace for heating, and quenching and tempering treatments are completed in sequence. During quenching, it is heated to 1200 degrees Celsius and kept warm in the vacuum heating furnace for 50 minutes. Then, the blade disc body 1 is taken out and placed in a water bath for water quenching, and then quickly taken out and placed in an oil bath for oil quenching, thereby improving the hardness and wear resistance of the blade disc body 1. During tempering, the blade disc body 1 is first placed in a vacuum heating furnace and heated to 600 degrees Celsius. After keeping warm for 20 minutes, it is filled with nitrogen and cooled to room temperature. It is then heated to 550 degrees Celsius and kept warm for 20 minutes. After that, it is filled with nitrogen and cooled to room temperature to complete the secondary tempering treatment. The blade disc body 1 that has undergone secondary tempering can eliminate internal stress, thereby improving the stability of the structure and making the blade body 2 less likely to deform during use.

[0059] S3, a countersink 5 is processed on the blade body 2; when processing the countersink 5 in S3, a countersunk pore is first drilled on the blade body 2, and then the countersunk pore is bored to form the countersunk 5. During the S3 process, the blade disc body 1 is clamped between two chuck discs 6 for positioning, and an avoidance gap 7 is set on the chuck disc 6 corresponding to the blade body 2. During the S3 process, the countersink 5 is processed through the avoidance gap 7. A plurality of locking holes 8 are set on the blade disc body 1, and a limiting hole is set on the chuck disc 6 corresponding to the locking hole 8. A locking pin is connected between the limiting hole and the locking hole 8, thereby realizing precise positioning and locking of the chuck disc 6 and the blade disc body 1. The outer edges of the two chuck discs 6 are connected and positioned by a plurality of connecting rods. The processing of the countersink 5 is carried out in two steps. The first step is to clamp the blade disc body 1 together with the clamping disc 6 to the turntable seat on the drilling machine for positioning. The turntable seat is driven by a stepper motor to rotate, which can accurately control the rotation angle of the turntable seat. The turntable seat and the countersink 5 on each blade body 2 are provided with sunken clearance grooves. The clearance grooves provide running space for the drill bit to avoid interference. The drilling operation is performed after the blade body 2 is aligned. After each drilling operation on a blade body 2 is completed, the stepper motor drives the turntable seat to rotate so that the blade disc body 1 rotates an angle, and then the next blade body 2 is aligned with the drilling position, and the drilling operation of the next blade body 2 is performed, and the drilling operation of all blade bodies 2 is completed in this way. The second step is to perform the boring operation. Clamp the blade disc 1 together with the clamping disc 6 onto the rotating seat on the boring machine. The rotating seat is driven by a stepper motor to rotate, which can accurately control the rotation angle of the rotating seat. A sunken avoidance groove is set on the rotating seat and at the corresponding position of the countersink 5 on each blade body 2. The avoidance groove provides running space for the boring cutter head to avoid interference. The boring operation is performed after the blade body 2 is aligned. After each boring operation on a blade body 2 is completed, the stepper motor drives the rotating seat to rotate so that the blade disc 1 rotates an angle, and then the next blade body 2 is aligned with the boring position, and the boring operation of the next blade body 2 is performed. In this way, the boring operation of all blade bodies 2 is completed, and the entire countersink 5 processing step is completed.

[0060] During the processing of the countersink 5, the blade plate 1 is clamped between the two chuck plates 6 for positioning, which prevents the blade body 2 from shaking and deviating, thereby ensuring the accuracy of the processing of the countersink 5. At the same time, the blade body 2 is prevented from being deformed during the processing of the countersink 5, thereby ensuring the stability of the structure of the blade body 2.

[0061] S4, grinding the surface of the blade body 2 to remove the oxide layer; the blade disc body 1 is loaded onto the grinding machine, and the grinding head on the grinding machine rotates and moves while contacting and grinding with the surface of the blade body 2 to remove the oxide layer on the surface.

[0062] S5, trimming the edge contour of the blade body 2; in S5, two arc-shaped side edges 9 are cut and trimmed on both sides of the bottom of the separation groove 4, so that a narrow connecting rib 10 is formed between the bottom of the blade body 2 and the blade disc body 1. The radial thickness of the connecting rib 10 is 0.5-1mm, and the circumferential length of the connecting diameter is 3-6mm. The two arc-shaped side edges 9 are trimmed on both sides of the bottom of the separation groove 4, thereby reducing the width of the connecting rib 10, which is convenient for the subsequent cutting of the blade body 2 from the blade disc body 1. In S5, a chip guide edge 11 is trimmed at the end edge of the blade body 2. The chip guide edge 11 is tilted away from the cutting direction and tilted toward the center of the blade disc body 1. After the chip guide edge 11 is trimmed, the end of the blade body 2 facing the cutting direction forms a tip. The inclined setting of the chip guide edge 11 can reduce the contact area between the end of the blade body 2 and the cut material, which is beneficial to improving the sawing effect.

[0063] S6, a tooth seat 12 is machined at the end of the blade body 2; the tooth seat 12 is arranged on the side of the end of the blade body 2 facing the cutting direction. The tooth seat 12 is placed at the tip of the edge of the end of the blade body 2 facing the cutting direction, and a concave arc-shaped chip guide groove 13 is machined on the side 9 of the blade body 2 facing the cutting direction. When the blade body 2 is used for cutting, the chip guide groove 13 plays a role in guiding chips, so that the chips can be discharged quickly, improving the sawing effect.

[0064] S7, welding the diamond bit 14 to the tooth seat 12; the tip of the diamond bit 14 protrudes out of the tip of the end edge of the blade body 2 facing the cutting direction.

[0065] S8, trimming the diamond cutter head 14: the diamond cutter head 14 is trimmed by electric discharge machining. The trimming of all the diamond cutter heads 14 is completed at one time, and the working efficiency is high.

[0066] S9, cutting all the blade bodies 2 by laser cutting.

[0067] During the processes S1 and S5, the blade disc body 1 is rotated and installed between the two positioning discs 15. The two positioning discs 15 clamp and position the blade disc body 1. A process notch 16 is set on the edge of the positioning disc 15. During the processes S1 and S5, the position to be cut of the blade disc body 1 is rotated to the position corresponding to the process notch 16. A connecting column 17 is set in the middle of the lower positioning disc 15. The outer wall of the connecting column 17 includes a cylindrical section 18, an anti-rotation section 19 and a connecting section 20. The anti-rotation section 19 is placed between the cylindrical section and the connecting section 20. The cylindrical section is movable and fitted with a rotating sleeve. An anti-rotation hole 21 is set on the upper positioning disc 15. The anti-rotation hole 21 and the anti-rotation section 19 are both polygonal structures. The anti-rotation hole 21 and the anti-rotation section 19 are adapted to be fitted and connected. A locking screw sleeve is connected to the connecting section 20, and the locking screw sleeve is pressed tightly on the upper positioning disc 15. The connection hole 3 is a polygonal structure at the center of the blade disc body 1. The outer wall of the rotating sleeve includes a positioning section 26 and a transmission section. The positioning section 26 is a polygonal structure. The connection hole 3 is set at the center of the blade disc body 1 and is connected with the positioning section 26. A circle of transmission teeth 22 is set on the transmission section. A driving motor 23 is installed on the positioning disc 15 below. A driving gear 24 is installed on the output shaft of the driving motor 23. The driving gear 24 is meshed with the transmission teeth 22 for transmission. The edges of the upper and lower positioning discs 15 extend out of the outer ends of the blade body 2, so that the blade body 2 can be completely clamped. A plurality of positioning columns 25 are connected between the edges of the upper and lower positioning discs 15. A positioning section 26 is set in the middle of the positioning column 25. Positioning holes 27 are set on the positioning disc 15 and corresponding to the positioning column 25. The outer diameter of the positioning section 26 is larger than the inner diameter of the positioning hole 27. The two ends of the positioning column 25 pass through the two positioning holes 27 and are locked and positioned by locking nuts. The end faces of the two positioning discs 15 are respectively abutted against the two ends of the positioning section 26 to achieve positioning. The positioning column 25 is provided to control the gap between the two positioning disks 15 to prevent the blade disk body 1 from being pinched.

[0068] When the contour processing and trimming operations are performed in the S1 and S5 processes, the driving motor 23 drives the rotating sleeve to rotate, thereby driving the blade disc body 1 to rotate. When the position to be cut of the blade disc body 1 is rotated to the position corresponding to the process notch 16, laser cutting is performed. The blade disc body 1 is clamped and positioned between the two positioning discs 15 to prevent the blade body 2 from being deformed. Since the connecting rib 10 between the blade body 2 and the blade disc body 1 is small in width, it is easy to deform. In this solution, only the position to be cut is rotated to the position corresponding to the process notch 16, that is, only the position to be processed of the blade disc body 1 is exposed, and other positions are clamped and positioned, thereby avoiding deformation of the blade body 2 during processing.

[0069] Several blade bodies 2 arranged at circumferential intervals are cut from the edge of the blade disc body 1 to form the blade body 2. Multiple blade bodies 2 can be processed at one time, and the work efficiency is high. During processing, the contour line is first cut on the edge of the blade disc body 1, so that the edge of the blade disc body 1 forms several circumferentially spaced blade bodies 2. At this time, the preliminary processing of the contour of the blade body 2 is completed. After that, the blade disc body 1 is heat treated to ensure that the HRC hardness of the blade disc body 1 can reach 42-50. The mechanical properties are improved by changing the microstructure of the surface or inside of the metal material through heat treatment. Then, a countersink 5 is processed on the blade body 2 to facilitate the subsequent assembly and use of the blade body 2. The surface of the blade body 2 is ground to remove the oxide layer, which is beneficial to improve the quality of the blade body 2. The edge contour of the blade body 2 is trimmed, and the tooth seat 12 is processed to ensure the dimensional accuracy of the blade body 2. Moreover, a circle of the blade body 2 is trimmed at the same time, which is beneficial to reduce errors and improve accuracy. The diamond bit 14 is welded to the tooth seat 12 position, and the connection is reliable. Trimming the diamond cutter head 14 is beneficial to ensuring the cutting performance of the diamond cutter head 14. The diamond cutter head 14 is welded on the blade body 2, which has good wear resistance, small wear during material cutting, and long service life.

[0070] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A method for processing a diamond crushing blade, characterized in that: The following steps are involved: S1, cutting out a number of blade bodies at circumferential intervals on the edge of the blade disc; S2, heat treatment of the blade disc; S3, machining countersinks on the blade body; S4, grinding the surface of the blade body to remove the oxide layer; S5, trimming the edge profile of the blade body; S6, machining a tooth seat at the end of the blade body; S7, welding the diamond cutter head to the tooth seat position; S8, trimming the diamond cutter head; S9, cutting off all the blade bodies.

2. A method for processing a diamond crushing blade according to claim 1, characterized in that: In S1, a plurality of separation grooves arranged at intervals are cut on the edge of the blade disc to form a plurality of blade bodies; in S5, two arc-shaped side edges are cut and trimmed on both sides at the bottom of the separation groove to form a narrow connecting rib between the bottom of the blade body and the blade disc.

3. A method for processing a diamond crushing blade according to claim 1, characterized in that: When processing S3 countersink, the countersink hole is first drilled on the insert body, and then the countersink hole is bored to form the countersink.

4. A method for processing a diamond crushing blade according to claim 1, characterized in that: Both S1 and S9 are cut by laser cutting.

5. A method for processing a diamond crushing blade according to claim 1, characterized in that: The S8 diamond cutter head is dressed by EDM.

6. A method for processing a diamond crushing blade according to claim 1, characterized in that: The tooth seat is arranged on the side of the end of the blade body facing the cutting direction.

7. A method for processing a diamond crushing blade according to claim 1, characterized in that: In S6, a concave arc-shaped chip guide groove is machined on one side of the blade body facing the cutting direction.

8. The method for processing a diamond crushing blade according to claim 1, characterized in that: In S5, a chip guide edge is trimmed at the end edge of the blade body, and the chip guide edge is tilted away from the cutting direction and tilted toward the center of the blade disc body.

9. A method for processing a diamond crushing blade according to any one of claims 1 to 8, characterized in that: During S1 and S5, the blade disc body is rotated and installed between the two positioning discs. The two positioning discs clamp and position the blade disc body. A process notch is set on the edge of the positioning disc. During S1 and S5, the position of the blade disc body to be cut is rotated to the position corresponding to the process notch.

10. A method for processing a diamond crushing blade according to any one of claims 1 to 8, characterized in that: In the S3 process, the blade disc body is clamped between two clamping discs for positioning, and avoidance gaps are set on the clamping discs corresponding to the blade body. In the S3 process, countersinking is performed through the avoidance gaps.

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