Laser cutting edge treatment equipment and method for diamond coating cutter

Abstract

The invention discloses laser cutting edge treatment equipment and method for a diamond coating cutter, and belongs to the technical field of diamond coating cutter treatment. The laser cutting edge treatment equipment comprises a workbench, an X-axis moving mechanism is arranged on the workbench, a Y-axis moving mechanism is arranged on the X-axis moving mechanism, and a cutter clamping table is arranged on the Y-axis moving mechanism; a Z-axis moving mechanism is arranged at the position, close to the right side, of the rear portion of the X-axis moving mechanism, a grinding wheel machining unit is arranged at the front end of the Z-axis moving mechanism, and a laser machining unit is arranged on the right side wall of the grinding wheel machining unit. As a non-contact finishing method, the laser cutting edge treatment method for the diamond coated cutter acts on the surface of a workpiece by focusing a laser beam, realizes selective ablation removal of a material by utilizing laser energy, and has the characteristics of high efficiency, environmental protection, wide applicability, high controllability and the like.

Description

Technical Field

[0001] The invention relates to the technical field of diamond coating tool processing, and in particular to a diamond coating tool laser edge processing device and method. Background Art

[0002] Diamond coated tools are usually used to process non-ferrous materials that are difficult to process, such as ceramics, carbon fiber and titanium alloys, as well as difficult-to-process composite materials such as high-density glass fiber and carbon fiber. Compared with traditional carbide tools, diamond coated tools can increase tool life by more than 3 to 5 times, increase cutting speed by 20% to 70%, increase machining accuracy by 0.5 to 1 level, and reduce tool consumption costs by 20% to 50%. Due to its excellent performance, it has been widely used in high-end manufacturing fields such as aerospace, automobiles, medical equipment, 3C and 5G. However, during the film forming process, the roundness of the tool edge will increase with the film thickness, resulting in reduced edge sharpness, increased cutting resistance, increased wear, and even surface coating peeling, which to a certain extent restricts its application development.

[0003] In addition, the shape of diamond-coated tools is complex. Due to the small thickness of the diamond coating, it is difficult to accurately process the cutting edge with traditional mechanical grinding methods, and it is easy to cause the diamond coating to fall off and break, affecting the service life of the tool. In short, key issues such as the difficulty in processing the complex path of the diamond-coated tool cutting edge and the selective quantitative removal of the diamond coating have become technical bottlenecks that restrict the further engineering application of diamond-coated tools. In view of this, the present invention proposes a laser cutting edge processing device and method for diamond-coated tools. Summary of the invention

[0004] The purpose of the present invention is to provide a diamond-coated tool laser edge processing device to solve the above-mentioned problems.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention discloses a diamond-coated tool laser edge processing device, comprising a workbench, wherein an X-axis moving mechanism is arranged on the workbench, a Y-axis moving mechanism is arranged on the X-axis moving mechanism, and a tool clamping table is arranged on the Y-axis moving mechanism; a Z-axis moving mechanism is arranged on the right side of the rear of the X-axis moving mechanism, a grinding wheel processing unit is arranged at the front end of the Z-axis moving mechanism, and a laser processing unit is arranged on the right side wall of the grinding wheel processing unit.

[0007] Furthermore, the tool clamping platform includes a machine tool fixture shell, a tool handle fixing disc is arranged on the right side wall of the machine tool fixture shell, a tool handle is fixed at the center position of the tool handle fixing disc, and a tool is arranged on the other end of the tool handle; the machine tool fixture shell includes a transmission shaft fixedly connected to the tool handle fixing disc, the other end of the transmission shaft is fixedly connected to a coupling, the other end of the coupling is fixedly connected to a tool clamping platform motor, and the tool clamping platform motor is fixedly installed on the outer side wall of the machine tool fixture shell.

[0008] Furthermore, the tool handle fixing disc adopts a three-jaw self-centering chuck.

[0009] Furthermore, the grinding wheel processing unit includes a rotating disc connecting member, a rotating disc is provided at the lower end of the rotating disc connecting member, a driving box connecting member is provided at the lower end of the rotating disc, a driving box is provided at the lower end of the driving box connecting member, a grinding wheel spindle rotating disc is provided at the front end of the driving box, a grinding wheel spindle is provided at the center position of the grinding wheel spindle rotating disc, a grinding wheel is sleeved on the grinding wheel spindle, and a flange fixedly connected to the grinding wheel spindle is provided on the front end surface of the grinding wheel; a detection device is provided on the left side wall of the driving box.

[0010] Furthermore, the detection device includes a probe connector disposed on the left side wall of the drive box, and a probe is disposed at the bottom of the probe connector.

[0011] Furthermore, the laser processing unit includes a linear module fixing plate, the right side of the linear module fixing plate is slidably connected to the linear moving module, a ball head connector is provided on the side of the linear moving module away from the linear module fixing plate, a laser connector is provided on the side of the ball head connector away from the linear moving module, a laser is provided on the laser connector, and an isolator is provided on the top of the laser; a coaxial CCD camera is provided on the right side wall of the laser, and a coaxial laser rangefinder is provided on the right side wall of the coaxial CCD camera.

[0012] Furthermore, a set screw is provided on the ball head connector.

[0013] Further, the laser edge treatment method of the diamond coated tool includes

[0014] Step 1: Preparation before sharpening the diamond tool: fix the diamond tool to be sharpened on the tool clamping table, start the computer console, and perform position correction on the X-axis moving mechanism, Y-axis moving mechanism and tool holder fixed disc under the tool clamping table, so that the laser spot is focused on the area where the tool needs to be processed, and control the focusing height of the laser through the computer;

[0015] Step 2: Use the probe to measure the position of the tool spiral line, plan the sharpening route, set the order of tool sharpening, generate the laser sharpening processing trajectory through the computer, and set the size of the light spot on the tool surface;

[0016] Step 3: Rotate the rotating disc 90° through computer control to make the grinding wheel spindle perpendicular to the tool; according to the processing trajectory calculated in step 2, set the diameter of the grinding wheel through Mastercam software, process the cutting trajectory of the tool again through the grinding wheel, remove the graphite generated by laser cutting, and capture the image of the processing position in real time through the coaxial CCD camera to observe whether there are bumps on the cutting edge surface. If there are surface defects, adjust the laser power, spot size and other parameters through the computer console. When the cutting edge of the tool meets the processing requirements, reset the components;

[0017] Step 4: After the grinding wheel has processed the diamond tool for a certain number of times, the processing surface will be worn to a certain extent. The laser is rotated to a suitable angle through the ball head connector connected to the laser so that the laser spot is irradiated onto the surface of the grinding wheel to be processed. The focal length of the laser is adjusted according to the size of the grinding wheel through the telescopic rod of the ball head connector; the outer contour of the grinding wheel is detected by the coaxial laser rangefinder, and the rotation of the grinding wheel spindle and the movement of the linear motion module are controlled by the computer according to the detection results to complete the dressing of the grinding wheel processing surface; finally, the coaxial CCD camera is used to capture the morphology of the processing position in real time, and the coaxial laser rangefinder is used to detect the processing surface during the processing until the grinding wheel surface meets the processing requirements, the laser stops emitting light, and the components are reset.

[0018] Furthermore, the specific operation process in step 2 is:

[0019] First, the tool spiral line is positioned by the probe: the front end of the tool is positioned by the probe, and then the peripheral edge of the tool is positioned to determine the position of the processing spiral line;

[0020] Then, the path and sequence of laser sharpening are planned through the path software, and the sharpening path is made spiral through the displacement and rotation coordination of the X-axis moving mechanism, Y-axis moving mechanism and tool holder fixed disc under the tool clamping table;

[0021] Finally, the diameter of the laser spot formed on the tool surface is 20 μm. The size of the laser spot on the tool surface is adjusted by adjusting the defocus amount of the spot according to the actual size of the tool.

[0022] Furthermore, the power of the laser is in the range of 1W to 100W, and the wavelength is 1064nm.

[0023] Compared with the prior art, the beneficial technical effects of the present invention are:

[0024] The laser edge processing equipment for diamond-coated tools of the present invention realizes the processing of complex trajectory designated paths such as spiral lines and spherical curves of the coated tool edge based on the "3+1+1" axis motion mechanism, and realizes the selective quantitative removal of the diamond coating through the "laser + grinding wheel" composite processing, thereby effectively reducing the radius of the cutting edge circle, reducing the cutting force, and improving the processing accuracy. At the same time, the equipment also has a self-dressing function, using coaxial laser ranging to detect the outer contour of the grinding wheel, and then using laser energy to evenly remove and shape the material on the surface of the grinding wheel, thereby forming evenly arranged cutting edges along the surface of the grinding wheel, reducing the situation of poor tool edge forming due to grinding wheel wear. In addition, the grinding wheel can be directly trimmed without disassembling the grinding wheel after the work is completed, making the trimming process more convenient and quick. In short, the laser edge processing method for diamond-coated tools of the present invention is a non-contact trimming method. It acts on the surface of the workpiece by focusing the laser beam and uses laser energy to achieve selective ablation removal of materials. It has the characteristics of high efficiency, environmental protection, wide applicability, and high controllability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 This is a front view of the laser edge processing equipment for diamond-coated cutting tools of the present invention;

[0027] Figure 2 This is a cross-sectional view of the tool clamping table;

[0028] Figure 3 It is a schematic diagram of the structure of the grinding wheel processing unit;

[0029] Figure 4 It is a schematic diagram of the structure of the laser processing unit;

[0030] Figure 5 It is the tool structure diagram;

[0031] Figure 6 It is a schematic diagram of the structure of the laser in rotation state;

[0032] Description of reference numerals: 1. workbench; 2. X-axis moving mechanism; 3. Y-axis moving mechanism; 4. tool clamping table; 5. grinding wheel processing unit; 6. Z-axis moving mechanism; 7. laser processing unit;

[0033] 40. Tool holder fixing disc; 41. Tool holder; 42. Tool; 43. Machine tool fixture housing; 44. Tool clamping table motor; 45. Coupling; 46. Transmission shaft;

[0034] 50. Rotating disc; 51. Rotating disc connector; 52. Driving box connector; 53. Driving box; 54. Grinding wheel spindle rotating disc; 55. Flange; 56. Grinding wheel spindle; 57. Grinding wheel; 58. Probe; 59. Probe connector;

[0035] 70. Coaxial CCD camera; 71. Isolator; 72. Laser connector; 73. Ball head connector; 74. Linear motion module; 75. Linear module fixing plate; 76. Set screw; 77. Laser; 78. Coaxial laser rangefinder. DETAILED DESCRIPTION

[0036] like Figure 1 As shown, a diamond-coated tool laser edge processing device comprises a workbench 1, on which an X-axis moving mechanism 2 is installed, on which a Y-axis moving mechanism 3 is installed, and on which a tool clamping table 4 is installed; a Z-axis moving mechanism 6 is installed on the right side of the rear of the X-axis moving mechanism 2, a grinding wheel processing unit 5 is installed at the front end of the Z-axis moving mechanism 6, and a laser processing unit 7 is installed on the right side wall of the grinding wheel processing unit 5. The X-axis moving mechanism 2, the Y-axis moving mechanism 3 and the Z-axis moving mechanism 6 all adopt a ball screw structure to achieve movement. Specifically, the Y-axis moving mechanism 3 moves left and right along the X-axis moving mechanism 2, and the tool clamping table 4 moves forward and backward along the Y-axis moving mechanism 3, thereby realizing the movement of the tool clamping table 4 in the X-axis and Y-axis directions; the grinding wheel processing unit 5 and the laser processing unit 7 move up and down along the Z-axis moving mechanism 6. The X-axis moving mechanism 2, the Y-axis moving mechanism 3 and the Z-axis moving mechanism 6 are all equipped with protective accordion covers to improve the safety during the movement process and thus ensure the accuracy of the movement.

[0037] like Figure 2 As shown, the tool clamping platform 4 includes a machine tool fixture housing 43, a tool handle fixing disc 40 is installed on the right side wall of the machine tool fixture housing 43, a tool handle 41 is fixed at the center of the tool handle fixing disc 40, and a tool 42 is installed at the other end of the tool handle 41. The machine tool fixture housing 43 includes a transmission shaft 46 fixedly connected to the tool handle fixing disc 40, the other end of the transmission shaft 46 is fixedly connected to a coupling 45, and the other end of the coupling 45 is fixedly connected to a tool clamping platform motor 44, and the tool clamping platform motor 44 is fixedly installed on the outer side wall of the machine tool fixture housing 43.

[0038] The tool handle fixing disc 40 adopts a three-jaw self-centering chuck. Specifically, the chuck has a diameter of 125 mm to achieve clamping and fixing of the tool handle.

[0039] Specifically, the tool handle 41 is fixed by the tool handle fixing disc 40 to fix the tool 42, and then the tool clamping table motor 44 is driven to start, and under the joint action of the coupling 45 and the transmission shaft 46, the tool handle fixing disc 40 rotates, and finally drives the tool 42 to rotate together.

[0040] like Figure 3 As shown, the grinding wheel processing unit 5 includes a rotating disc connector 51, a rotating disc 50 is installed at the lower end of the rotating disc connector 51, a driving box connector 52 is installed at the lower end of the rotating disc 50, a driving box 53 is installed at the lower end of the driving box connector 52, a grinding wheel spindle rotating disc 54 is installed at the front end of the driving box 53, and a grinding wheel spindle 56 is installed at the center position of the grinding wheel spindle rotating disc 54. A grinding wheel 57 is sleeved on the grinding wheel spindle 56, and a flange 55 fixedly connected to the grinding wheel spindle 56 is installed on the front end surface of the grinding wheel 57. A detection device is installed on the left side wall of the driving box 53. The detection device includes a probe connector 59 installed on the left side wall of the driving box 53, and a probe 58 is installed at the bottom of the probe connector 59. The probe 58 mainly detects the trajectory of the spiral line of the tool 42. The structure of the tool 42 is as shown in FIG. Figure 5 shown.

[0041] Specifically, the driving box 53 drives the grinding wheel spindle to rotate, thereby driving the grinding wheel 57 to rotate. In this embodiment, the grinding wheel 57 is a bronze diamond grinding wheel. The iron group metal in the bronze matrix of the bronze diamond grinding wheel can activate the carbon atoms in the diamond or provide active oxygen for it, thereby promoting the graphitization transformation of the diamond, which is beneficial to the removal of diamond processing.

[0042] like Figure 4 As shown, the laser processing unit 7 includes a linear module fixing plate 75, the right side of the linear module fixing plate 75 is slidably connected to a linear moving module 74, and the linear moving module 74 is driven by a linear moving module motor (this is a prior art method and will not be redundantly described here). A ball head connector 73 is installed on the side of the linear moving module 74 away from the linear module fixing plate 75, and a set screw 76 is installed on the ball head connector 73. A laser connector 72 is installed on the side of the ball head connector 73 away from the linear moving module 74, and a laser 77 is installed on the laser connector 72, and the laser is an infrared fiber pulse laser. An isolator 71 is installed on the top of the laser 77, and the isolator 71 is inserted into the laser head 77 and fixed by screws. A coaxial CCD camera 70 is installed on the right side wall of the laser 77 to facilitate laser focusing before processing and real-time monitoring of the processing process. A coaxial laser rangefinder 78 is installed on the right side wall of the coaxial CCD camera 70 to measure the outer contour surface of the grinding wheel 57 before and after laser shaping to ensure the processing quality of the grinding wheel 57.

[0043] Specifically, the ball head connector 73 has a spherical universal joint in the middle, which enables the laser 77 to rotate 0°-360° on the YZ plane and 0°-45° in the Y-axis direction. The position is fixed by the set screw 76, thereby ensuring the shaping action of the laser head of the laser 77 on the grinding wheel 57.

[0044] Diamond coated tool laser edge treatment method, including

[0045] Step 1: Preparation before sharpening the diamond tool, fix the diamond tool to be sharpened on the tool clamping table 4, start the computer console and use Mastercam software to correct the position of the X-axis moving mechanism 2, Y-axis moving mechanism 3 and tool holder fixed disc 40 under the tool clamping table 4, so that the laser spot 77 is focused on the area where the tool needs to be processed, and the focusing height of the laser 77 is controlled by the computer. The Z-axis moving mechanism 6 drives the grinding wheel processing unit 5 and the laser head processing unit 7 to move along the Z direction, the rotating disc 50 rotates along the Z direction, and the spherical universal joint inside the ball head connector 73 rotates 90°, rotating the laser head of the laser 77 to the top of the tool 42, and the laser head of the laser 77 is parallel to the drive box 53.

[0046] Step 2: Measure the position of the tool spiral line through the probe 58, plan the laser incident position and the order of edge processing, generate the laser sharpening processing trajectory through the Mastercam software, and set the size of the spot on the surface of the tool 42. Then make the XY axis moving mechanism cooperate with the tool rotation to complete the movement of the spiral trajectory, and process the edge of the tool respectively. After the laser processing is completed, there will be graphite on the surface of the diamond tool edge. Graphite is heated to the temperature of diamond graphitization during the laser processing of diamond, and the diamond is converted into graphite. Therefore, after the laser processing is completed, the rotating disc 50 is driven by the motor to rotate in the Z direction, rotate 90° to turn the grinding wheel 57 to the top of the tool 42, and the grinding wheel 57 is used to grind the tool edge once under the trajectory detected in front to remove the surface graphite layer. In this way, the sharpening of the tool 42 is completed.

[0047] Step 3: In the long-term processing process, the wear of the grinding wheel 57 will affect the accuracy of the removal of the graphite layer of the tool. Therefore, the grinding wheel 57 is reshaped by the laser head 77. The specific operation is as follows: the rotating disk 50 is rotated 90° by computer control to make the grinding wheel spindle 56 perpendicular to the tool 42; according to the processing trajectory calculated in step 2, the diameter of the grinding wheel 57 is set by Mastercam software, and the sharpening trajectory of the tool 42 is processed again by the grinding wheel 57 to remove the graphite generated by laser sharpening, and the image of the processing position is captured in real time by the coaxial CCD camera 70 to observe whether there are bumps on the edge surface. If there are surface defects, the laser power, spot size and other parameters are adjusted by the computer console. When the edge of the tool 42 meets the processing requirements, the components are reset;

[0048] Step 4: After the grinding wheel 57 processes the diamond tool a certain number of times, the processing surface will be worn to a certain extent. The laser 77 is rotated to a suitable angle through the ball head connector 73 connected to the laser 77, and the laser spot is irradiated to the surface of the grinding wheel 57 to be processed by fixing the set screw 76. Figure 6 As shown, the focal length of the laser 77 is adjusted according to the size of the grinding wheel by adjusting the angle of the ball head connector 73 and the displacement of the linear motion module 74; the outer contour of the grinding wheel 57 is detected by the coaxial laser rangefinder 78, and the rotation of the grinding wheel spindle 56 and the displacement of the linear motion module 74 are controlled by a computer according to the detection result to complete the trimming of the processing surface of the grinding wheel 57; finally, the coaxial CCD camera 70 is used to capture the morphology of the processing position in real time, and the coaxial laser rangefinder 56 is used to synchronously detect the processing surface during the processing until the surface of the grinding wheel 57 meets the processing requirements, the laser 77 stops emitting light, and each component is reset.

[0049] The specific operation process in step 2 is:

[0050] First, the tool spiral is positioned by the probe 58: the front end face of the tool 42 is first positioned by the probe 58, and then the peripheral edge of the tool 42 is positioned, so as to determine the position of the processed spiral; then, the path and sequence of laser sharpening are planned by the path software, and the sharpening path is made spiral by the displacement and rotation coordination of the X-axis moving mechanism 2, the Y-axis moving mechanism 3 and the tool holder fixed disk 40 under the tool clamping table 4; finally, the spot diameter formed by the laser 77 on the surface of the tool 42 is 20μm. The size of the spot of the laser 77 on the tool surface is adjusted by adjusting the defocus amount of the spot according to the actual size of the tool 42. The power of the laser 77 is in the range of 1W to 100W, and the wavelength is 1064nm.

[0051] Based on the above-mentioned diamond-coated tool laser edge processing equipment and method, the specific embodiments of the present invention are as follows:

[0052] Example 1

[0053] The diamond coated tool sharpening and grinding wheel shaping equipment of the present invention is used to sharpen the diamond coated tool. The original cutting edge radius of the tool is 20 μm, the roughness Sa is 1.4 μm, the laser power is 2 W, the tool moving speed is 6.4 mm / s, the tool rotation speed is 6 r / min, the grinding wheel rotation speed is 120 r / min, and the laser power for grinding wheel shaping is 20 W. The actual cutting edge radius of the tool processed in this embodiment is 13.5 μm, the roughness of the cutting edge processing is Sa0.8 μm, the contour circle runout of the grinding wheel surface is reduced from 230 μm before dressing to 60 μm, and the contour accuracy of the grinding wheel is effectively improved.

[0054] Example 2

[0055] The diamond coated tool sharpening and grinding wheel shaping equipment of the present invention is used to sharpen the diamond coated tool. The original cutting edge radius of the tool is 20 μm, the roughness Sa is 1.4 μm, the laser power is 3 W, the tool moving speed is 8 mm / s, the tool rotation speed is 6 r / min, the grinding wheel rotation speed is 120 r / min, and the laser power for grinding wheel shaping is 25 W. The actual cutting edge radius of the tool processed in this embodiment is 12.5 μm, the roughness of the cutting edge processing is Sa0.75 μm, the contour circle runout of the grinding wheel surface is reduced from 235 μm before dressing to 50 μm, and the contour accuracy of the grinding wheel is effectively improved.

[0056] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A diamond-coated tool laser edge processing device, characterized in that: The invention comprises a workbench (1), wherein an X-axis moving mechanism (2) is arranged on the workbench (1), a Y-axis moving mechanism (3) is arranged on the X-axis moving mechanism (2), and a tool clamping table (4) is arranged on the Y-axis moving mechanism (3); a Z-axis moving mechanism (6) is arranged on the right side behind the X-axis moving mechanism (2), a grinding wheel processing unit (5) is arranged at the front end of the Z-axis moving mechanism (6), and a laser processing unit (7) is arranged on the right side wall of the grinding wheel processing unit (5).

2. The diamond-coated tool laser edge processing equipment according to claim 1, characterized in that: The tool clamping platform (4) comprises a machine tool fixture shell (43), a tool handle fixing disc (40) is arranged on the right side wall of the machine tool fixture shell (43), a tool handle (41) is fixed at the center position of the tool handle fixing disc (40), and a tool (42) is arranged at the other end of the tool handle (41); the machine tool fixture shell (43) comprises a transmission shaft (46) fixedly connected to the tool handle fixing disc (40), the other end of the transmission shaft (46) is fixedly connected to a coupling (45), the other end of the coupling (45) is fixedly connected to a tool clamping platform motor (44), and the tool clamping platform motor (44) is fixedly installed on the outer side wall of the machine tool fixture shell (43).

3. The diamond-coated tool laser edge processing equipment according to claim 2, characterized in that: The tool handle fixing disc (40) adopts a three-jaw self-centering chuck.

4. The diamond-coated tool laser edge processing equipment according to claim 1, characterized in that: The grinding wheel processing unit (5) comprises a rotating disc connecting member (51), a rotating disc (50) is arranged at the lower end of the rotating disc connecting member (51), a driving box connecting member (52) is arranged at the lower end of the rotating disc (50), a driving box (53) is arranged at the lower end of the driving box connecting member (52), a grinding wheel spindle rotating disc (54) is arranged at the front end of the driving box (53), a grinding wheel spindle (56) is arranged at the center position of the grinding wheel spindle rotating disc (54), a grinding wheel (57) is sleeved on the grinding wheel spindle (56), and a flange (55) fixedly connected to the grinding wheel spindle (56) is arranged on the front end surface of the grinding wheel (57); a detection device is arranged on the left side wall of the driving box (53).

5. The diamond-coated tool laser edge processing equipment according to claim 4, characterized in that: The detection device comprises a probe connecting piece (59) arranged on the left side wall of the driving box (53), and a probe (58) is arranged at the bottom of the probe connecting piece (59).

6. The diamond-coated tool laser edge processing equipment according to claim 1, characterized in that: The laser processing unit (7) comprises a linear module fixing plate (75), the right side of the linear module fixing plate (75) is slidably connected to a linear moving module (74), a ball head connecting piece (73) is provided on the side of the linear moving module (74) away from the linear module fixing plate (75), a laser connecting piece (72) is provided on the side of the ball head connecting piece (73) away from the linear moving module (74), a laser (77) is provided on the laser connecting piece (72), and an isolator (71) is provided on the top of the laser (77); a coaxial CCD camera (70) is provided on the right side wall of the laser (77), and a coaxial laser rangefinder (78) is provided on the right side wall of the coaxial CCD camera (70).

7. The laser edge processing equipment for diamond-coated cutting tools according to claim 6, characterized in that: The ball head connector (73) is provided with a set screw (76).

8. The diamond-coated tool laser edge processing device according to any one of claims 1 to 6, wherein the diamond-coated tool laser edge processing method comprises: Step 1: Preparation before sharpening the diamond tool: fix the diamond tool to be sharpened on the tool clamping table (4), start the computer control console, and perform position correction on the X-axis moving mechanism (2), the Y-axis moving mechanism (3) and the tool holder fixing disk (40) below the tool clamping table (4) so ​​that the light spot of the laser (77) is focused on the area of ​​the tool to be processed, and the focusing height of the laser (77) is controlled by the computer; Step 2: Measure the position of the tool spiral line through the probe (58), plan the sharpening route, set the sharpening sequence of the tool (42), generate the laser sharpening processing trajectory through the computer, and set the size of the light spot on the surface of the tool (42); Step 3: Rotate the rotating disk (50) by 90° through computer control so that the grinding wheel spindle (56) is perpendicular to the tool (42); according to the processing trajectory calculated in step 2, set the diameter of the grinding wheel (57) through Mastercam software, process the sharpening trajectory of the tool (42) again through the grinding wheel (57) to remove the graphite generated by laser sharpening, and capture the image of the processing position in real time through the coaxial CCD camera (70) to observe whether there are bumps on the edge surface. If there are surface defects, adjust the laser power, spot size and other parameters through the computer console. When the edge of the tool (42) meets the processing requirements, reset the components; Step 4: After the grinding wheel (57) processes the diamond tool a certain number of times, the processing surface will be worn to a certain extent. The laser (77) is rotated to a suitable angle through the ball head connector (73) connected to the laser (77) so that the laser spot is irradiated on the surface of the grinding wheel (57) to be processed. The focal length of the laser (77) is adjusted according to the size of the grinding wheel piece through the telescopic rod of the ball head connector (73); the outer contour of the grinding wheel (57) is detected by the coaxial laser rangefinder (78), and the rotation of the grinding wheel spindle (56) and the movement of the linear motion module (74) are controlled by a computer according to the detection result to complete the finishing of the processing surface of the grinding wheel (57); finally, the morphology of the processing position is captured in real time by the coaxial CCD camera (70), and the processing surface is detected by the coaxial laser rangefinder (56) during the processing process until the surface of the grinding wheel (57) meets the processing requirements, the laser (77) stops emitting light, and each component is reset.

9. The method for laser edge treatment of a diamond-coated tool according to claim 8, characterized in that: The specific operation process in step 2 is: First, the tool spiral line is positioned by using a probe (58): the front end surface of the tool (42) is first positioned by using the probe (58), and then the peripheral edge of the tool (42) is positioned, thereby determining the position of the processing spiral line; Then, the path and sequence of laser sharpening are planned by path software, and the sharpening path is made spiral by the displacement and rotation coordination of the X-axis moving mechanism (2), the Y-axis moving mechanism (3) and the tool holder fixing disk (40) under the tool clamping table (4); Finally, the diameter of the light spot formed by the laser (77) on the surface of the tool (42) is 20 μm. The size of the light spot formed by the laser (77) on the surface of the tool (42) is adjusted by adjusting the defocus amount of the light spot according to the actual size of the tool (42).

10. The method for laser edge treatment of a diamond-coated tool according to claim 9, characterized in that: The power of the laser (77) is in the range of 1W to 100W, and the wavelength is 1064nm.

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