Cubic boron nitride blade and negative chamfering automatic grinding machine tool

Abstract

The invention relates to the technical field of intelligent equipment manufacturing, and discloses a cubic boron nitride blade and negative chamfering automatic grinding machine tool, a cubic boron nitride blade grinding device comprises a tool apron used for grinding a cubic boron nitride blade, and a negative chamfering drainage plate is arranged at the cutting edge of the tool apron; the first protrusions and the second protrusions are symmetrically arranged on the two sides of the tool apron and arranged on the drainage plate respectively, the first protrusions are located at the top point of the drainage plate, and the second protrusions are located between the two adjacent first protrusions; the mounting holes respectively penetrate through the tool apron and the drainage plate and are used for mounting a blade; the negative chamfers are designed at the cutting edge of the cubic boron nitride blade, so that the wedge angle of the cutter can be increased, the linear cutting edge of the cutting edge is changed into the face cutting edge stress, the cutting force is dispersed, the direct stress of the cutting edge is reduced, the tipping risk during intermittent cutting and powerful cutting is reduced, and the blade damage caused by stress concentration at the micro notch of the cutting edge is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent equipment manufacturing, in particular to a cubic boron nitride blade and a negative chamfering automatic grinding machine. Background Art

[0002] Cubic boron nitride (CBN) inserts are superhard cutting tools artificially crafted under high temperature and pressure using cubic boron nitride powder and a small amount of binder. Second only to diamond in hardness, they offer high wear resistance, excellent thermal stability, and chemical inertness. They are commonly used for cutting ferrous metals. Available in welded composite and monolithic polycrystalline constructions, CBN has revolutionized metalworking and cutting technology and is widely used in turning.

[0003] For example, Chinese patent application number CN101204738B discloses a turning tool and a turning insert having a basic triangular shape and fixed in a tool holder in a base body. The turning insert has three side surfaces arranged in an imaginary equilateral triangle and converging in pairs at an angle of 60° toward a corner containing a cutting edge.

[0004] However, there are still some problems with existing turning tools. The existing CBN blades made of carbide and other blade materials have poor toughness and low sharp edge strength. Therefore, when turning, the blade edge will be subjected to cutting force and stress will be concentrated on the straight line position of the blade edge. Especially under intermittent cutting, processing of hard materials or impact loads, micro cracks or large-scale damage are prone to occur, resulting in a significant shortening of tool life and thus damage to the blade.

[0005] Therefore, how to avoid damage to the turning insert is a problem that needs to be solved at present. Summary of the Invention

[0006] The present invention provides a cubic boron nitride blade and a negative chamfer automatic grinding machine to solve the above problems in the prior art.

[0007] Cubic boron nitride inserts, including:

[0008] A tool holder is used for turning parts, and a negative chamfer is provided on the cutting edge of the tool holder;

[0009] The guide plates are symmetrically arranged on both sides of the tool holder and are used to guide the waste chips generated during the turning process;

[0010] A first protrusion and a second protrusion are respectively provided on the guide plate, wherein the first protrusion is located at the vertex of the guide plate, and the second protrusion is located between two adjacent first protrusions;

[0011] The mounting holes respectively pass through the blade seat and the guide plate and are used for mounting the blade.

[0012] An automatic grinding machine for negative chamfering of cubic boron nitride blades;

[0013] The automatic negative chamfer grinding machine comprises a workbench and a grinding unit arranged on the workbench for performing negative chamfer grinding on a blade;

[0014] A water injection unit is provided on the workbench and is used for injecting cutting fluid into the blade during the grinding process;

[0015] The water injection unit includes a base provided on the workbench, a support frame connected to the base, a transmission shaft provided on the support frame, a first helical gear sleeved on the transmission shaft, an input assembly meshing with the first helical gear, a driven wheel provided at one end of the transmission shaft, an injection assembly connected to the other end of the transmission shaft, and a water outlet pipe communicated with the injection assembly;

[0016] The grinding unit is connected to the driven wheel, and the amount and speed of the cutting fluid sprayed on the blade surface are adjusted according to the grinding rate of the grinding unit, so that the injection amount of the cutting fluid can be adjusted in real time according to the grinding speed;

[0017] The adjustment unit is based on existing technology and includes at least one set of mutually perpendicular screw linear motion mechanisms and an adjustment seat arranged on the screw linear motion mechanism. The adjustment motor and worm gear are both arranged on the adjustment seat. A suction cup or a claw is provided on the placement plate. The suction cup and the claw cooperate to complete the adsorption and fixing of the blade, thereby ensuring the smooth progress of the grinding work.

[0018] Furthermore, the grinding unit includes a grinding device, a clamping device and a manipulator arranged on the workbench;

[0019] The grinding device comprises a grinding motor fixedly mounted on the workbench, a grinding shaft connected to the output end of the grinding motor, a driving wheel sleeved on the grinding shaft, and a grinding wheel arranged on the grinding shaft;

[0020] The clamping device includes an adjustment unit fixedly mounted on the workbench, an adjustment motor provided on the adjustment unit, a worm connected to an output end of the adjustment motor, a worm wheel connected to the worm and provided on the adjustment unit, and a placement plate provided on the worm wheel;

[0021] The driving wheel and the driven wheel are connected by a chain;

[0022] The grinding motor can drive the water delivery component and the injection component to move through the provided chain, thereby being able to adjust the injection amount of the cutting fluid.

[0023] Furthermore, the input assembly includes a support rod and a rotating shaft respectively provided on the support frame, an adjusting portion provided on the rotating shaft, a first driving rod movably connected to the adjusting portion, a first connecting member movably connected to the first driving rod, a movable rod connected to the first connecting member, a second connecting member connected to the other end of the movable rod, and a water outlet connected to the second connecting member;

[0024] The first connecting member and the second connecting member have the same structure, and include two hinged blocks hinged to each other;

[0025] The first driving rod is movably connected to the supporting rod.

[0026] Furthermore, the adjustment portion includes a sleeve and a second bevel gear sleeved on the rotating shaft, hinged seats respectively provided on the sleeve and the top of the rotating shaft, a driving wheel sleeved on the sleeve, a first connecting rod movably connected to one of the hinged seats, a second connecting rod movably connected to the other hinged seat, and a driving ball provided on the second connecting rod;

[0027] The first connecting rod is movably connected to the second connecting rod, and the first helical gear is meshed with the second helical gear;

[0028] A limiting groove is provided on the circumference of the driving wheel. One end of the first driving rod is a C-shaped structure, and a limiting ball is provided on the inner wall thereof. The limiting ball is located in the limiting groove.

[0029] The water inlet pipe is connected to the water delivery pump and is used to deliver water into the water inlet pipe.

[0030] Furthermore, the water outlet portion includes a water inlet seat mounted on the base, a water inlet pipe connected to the water inlet seat, a valve core built into the water inlet pipe, a connecting rod connected to the valve core, and a third connecting rod connected to the connecting rod;

[0031] The third connecting rod is connected to the second connecting member;

[0032] The water inlet seat is connected to the injection assembly, and the water inlet pipe serves as the water inlet end;

[0033] The valve core is provided with a water hole. By rotating the valve core, the contact area between the water flow direction and the water hole is adjusted to change the water injection speed.

[0034] Furthermore, the injection assembly includes a bracket arranged on the support frame, a rocker connected to one end of the transmission shaft, a second driving rod movably connected to the rocker, a movable block arranged on the second driving rod and movably connected to the second driving rod, a propulsion rod arranged on the movable block, a sealing block arranged on the propulsion rod, and a propulsion cylinder arranged on the base;

[0035] The sealing block is located in the propulsion cylinder, and the propulsion cylinder is communicated with the water inlet seat and the water outlet pipe respectively;

[0036] The movable rod and the propulsion rod pass through the bracket.

[0037] Furthermore, it also includes a placement table arranged on the workbench, and a detection unit located above the placement table;

[0038] The placement platform includes a lifting seat and a limiting column connected to the lifting seat;

[0039] The detection unit includes a support frame arranged on the workbench, a plurality of driving parts with the same structure arranged on the support frame, a movable disk for connecting the driving parts, an illumination assembly symmetrically arranged on the movable disk, and a plurality of collection heads evenly arranged on the movable disk.

[0040] Furthermore, the driving unit includes a displacement motor fixedly mounted on the support frame, a driving shaft connected to the output end of the displacement motor, an adjusting rod sleeved on the driving shaft, a connecting shaft for connecting the adjusting rod, and joint connecting rods symmetrically arranged at both ends of the connecting shaft;

[0041] The movable disk is further provided with a driven shaft, and the other end of the joint connecting rod is connected to the driven shaft.

[0042] Furthermore, the lighting assembly includes two bases of identical structure, at least four deflection rods movably arranged on the bases, a transfer rod for connecting the deflection rods located on different bases, a rotary motor arranged on one of the bases, and a lamp arranged on the other base;

[0043] The output end of the rotary motor is connected to one of the deflection rods.

[0044] Beneficial effects: The present invention discloses a cubic boron nitride blade and a negative chamfer automatic grinding machine. The present invention designs a negative chamfer at the edge of the cubic boron nitride blade, thereby increasing the tool wedge angle, causing the blade to be stressed instead of a straight edge, dispersing the cutting force, reducing the direct force on the cutting edge, reducing the risk of chipping during intermittent cutting and strong cutting, and avoiding stress concentration at the micro-notch of the cutting edge to cause damage to the blade; and the first protrusion, the second protrusion and the guide plate are provided to drain the waste material in the processing process or to play the role of reinforcing ribs to ensure the normal operation of the tool holder; and the injection assembly and input assembly in the blade grinding machine are provided The working of the parts is coordinated, and the grinding unit is connected to the driven wheel. According to the grinding rate of the grinding unit, the spraying amount and spraying speed of the cutting fluid sprayed on the surface of the blade are adjusted, so that the injection amount of the cutting fluid can be adjusted in real time according to the grinding speed. The device is also provided with a lighting component for detecting chipping of the blade. By changing the position of the lighting component, the distance between the lighting component and the blade is changed, thereby changing the size of the light and shadow formed by the blade, thereby expanding the chipping position, and then the light and shadow are imaged by the set acquisition head. It is judged whether the blade has chipping based on the collected data, thereby completing the detection of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic structural diagram of the cubic boron nitride blade of the present invention;

[0046] Figure 2 This is a schematic structural diagram of a negative chamfer automatic grinding machine for cubic boron nitride blades according to the present invention;

[0047] Figure 3 It is a schematic structural diagram of the grinding unit of the present invention;

[0048] Figure 4 is a schematic diagram of a grinding unit of the present invention;

[0049] Figure 5 It is a schematic structural diagram of the water injection unit of the present invention;

[0050] Figure 6 It is a schematic diagram of the input component structure of the present invention;

[0051] Figure 7 It is a schematic structural diagram of the water inlet seat of the present invention;

[0052] Figure 8 It is a schematic structural diagram of the injection assembly of the present invention;

[0053] Figure 9 It is a schematic structural diagram of the detection unit of the present invention;

[0054] Figure 10 It is a schematic structural diagram of the lighting assembly of the present invention.

[0055] 1. Workbench; 2. Grinding device; 21. Grinding motor; 22. Grinding shaft; 23. Grinding wheel; 24. Driving wheel; 3. Water injection unit; 31. Driven wheel; 32. Support frame; 33. Transmission shaft; 34. First bevel gear; 35. Injection assembly; 351. Rocker; 352. Second drive rod; 353. Bracket; 354. Propelling rod; 355. Sealing block; 356. Propelling cylinder; 357. Movable block; 36. Input assembly; 361. Rotating shaft; 362. Second bevel gear; 363. Driving wheel; 364. Second connecting rod; 365. Articulated seat; 366. First connecting rod; 367. Driving ball; 368. First driving rod; 369. Support rod; 3610. First connecting member; 3611. Movable rod; 3612. Second connecting member; 3 613. Third connecting rod; 3614. Connecting rod; 3615. Valve core; 3616. Water inlet pipe; 3617. Water inlet seat; 3618. Sleeve; 37. Base; 38. Water outlet pipe; 4. Clamping device; 41. Adjusting motor; 42. Worm; 43. Worm gear; 44. Placement plate; 45. Adjustment unit; 5. Manipulator; 6. Detection unit; 61. Support frame; 62. Displacement motor; 63. Drive shaft; 64. Adjusting rod; 65. Connecting shaft; 66. Joint connecting rod; 67. Driven shaft; 68. Moving plate; 69. Illumination component; 691. Base; 692. Rotating motor; 693. Deflection rod; 694. Adapter rod; 695. Lamp; 610. Collection head; 7. Placement table; 8. Knife holder; 9. Drain plate; 10. First protrusion; 11. Second protrusion. DETAILED DESCRIPTION

[0056] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0057] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0058] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive with other embodiments.

[0059] The present invention discloses a cubic boron nitride blade and a negative chamfer automatic grinding machine. Figures 1-10 ,include:

[0060] The tool holder 8 is used for turning parts, and the tool holder 8 has a negative chamfer at the cutting edge; the guide plates 9 are symmetrically arranged on both sides of the tool holder 8 for draining waste chips generated during the turning process; the first protrusion 10 and the second protrusion 11 are respectively arranged on the guide plates 9, the first protrusion 10 is located at the vertex of the guide plate 9, and the second protrusion 11 is located between two adjacent first protrusions 10; the mounting holes pass through the tool holder 8 and the guide plates 9 respectively for mounting the blade; by designing a negative chamfer at the cutting edge of the cubic boron nitride blade, the tool wedge angle can be increased, the blade is changed from a straight edge to a face edge, the cutting force is dispersed, the direct force on the cutting edge is reduced, the risk of chipping during intermittent cutting and strong cutting is reduced, and stress concentration at the micro-notch of the cutting edge is avoided to avoid damage to the blade; and the first protrusion 10, the second protrusion 11 and the guide plate 9 can drain the waste during the processing process or act as a reinforcing rib to ensure the normal operation of the tool holder 8.

[0061] A negative chamfering automatic grinding machine for cubic boron nitride blades, comprising a workbench 1, a grinding unit arranged on the workbench 1 for performing negative chamfering grinding on the blade; a water injection unit 3, arranged on the workbench 1, for injecting cutting fluid into the blade during the grinding process; the water injection unit 3 comprises a base 37 arranged on the workbench 1, a support frame 32 connected to the base 37, a transmission shaft 33 arranged on the support frame 32, a first bevel gear 34 sleeved on the transmission shaft 33, an input assembly 36 meshing with the first bevel gear 34, a driven wheel 31 arranged at one end of the transmission shaft 33, an injection assembly 35 connected to the other end of the transmission shaft 33, and an input assembly 36 meshing with the first bevel gear 34. The outlet pipe 38 is connected to the injection assembly 35; the grinding unit is connected to the driven wheel 31, and the spraying amount and spraying speed of the cutting fluid sprayed on the blade surface are adjusted according to the grinding rate of the grinding unit, so that the injection amount of the cutting fluid can be adjusted in real time according to the grinding speed; the driving wheel 24, the driven wheel 31 and the chain are connected to ensure that the power source of the water injection unit 3 is the grinding equipment 2, and then when the water injection unit 3 is performing the water injection work, the water injection amount and the water injection rate are adapted to the rotation speed of the grinding equipment 2, so that the injection amount of the cutting fluid can be adjusted in real time according to the rotation speed of the grinding equipment 2, and then the blade can be cooled in real time during the grinding process to avoid damage to the blade and ensure the smooth progress of the grinding work.

[0062] The grinding unit includes a grinding device 2, a clamping device 4 and a manipulator 5 arranged on the workbench 1; the grinding device 2 includes a grinding motor 21 fixedly mounted on the workbench 1, a grinding shaft 22 connected to the output end of the grinding motor 21, a driving wheel 24 sleeved on the grinding shaft 22, and a grinding wheel 23 arranged on the grinding shaft 22; the clamping device 4 includes an adjusting unit 45 fixedly mounted on the workbench 1, an adjusting motor 41 arranged on the adjusting unit 45, a worm 42 connected to the output end of the adjusting motor 41, a worm wheel 43 connected to the worm 42 and arranged on the adjusting unit 45, and a placement plate 44 arranged on the worm wheel 43; the driving wheel 24 is connected to the driven wheel 31 by a chain; through the provided chain, the grinding motor 21 can drive the water delivery component and the injection component 35 to move, so as to be able to adjust The amount of cutting fluid injected; when the blade to be processed is grasped by the manipulator 5, since the manipulator 5 is a prior art and the manipulator 5 is provided with a rotating disk, the blade to be processed can be transported to the clamping device 4 through the rotating disk, and the blade is limited by the claws provided on the placement disk 44, and then the grinding motor 21 starts to work, and the moving grinding motor 21 can drive the grinding shaft 22 to rotate, thereby causing the grinding wheel 23 to move, and then the adjusting motor 41 and the adjusting unit 45 start to work. At this time, the moving adjusting motor 41 can drive the worm 42 connected to it to rotate, and then the moving worm 42 can drive the worm wheel 43 meshing with it to rotate, thereby driving the placement disk 44 to move, and adjust the grinding angle between the blade and the grinding wheel 23, and the distance between the blade and the grinding wheel 23 can be adjusted by the provided adjusting unit 45 to complete the processing of the blade.

[0063] The input assembly 36 includes a support rod 369 and a rotating shaft 361 respectively arranged on the support frame 32, an adjusting part arranged on the rotating shaft 361, a first driving rod 368 movably connected to the adjusting part, a first connecting member 3610 movably connected to the first driving rod 368, a movable rod 3611 connected to the first connecting member 3610, a second connecting member 3612 connected to the other end of the movable rod 3611, and a water outlet part connected to the second connecting member 3612; the first connecting member 3610 and the second connecting member 3612 have the same structure, including two hinged blocks hinged to each other; the first driving rod 368 is movably connected to the support rod 369; the adjusting part includes a sleeve 3618 and a second bevel gear 362 sleeved on the rotating shaft 361, A hinged seat 365 is respectively arranged at the top of the sleeve 3618 and the rotating shaft 361, a driving wheel 363 is sleeved on the sleeve 3618, a first connecting rod 366 movably connected to one of the hinged seats 365, a second connecting rod 364 movably connected to the other hinged seat 365, and a driving ball 367 is arranged on the second connecting rod 364; wherein the first connecting rod 366 is movably connected to the second connecting rod 364, and the first bevel gear 34 is engaged with the second bevel gear 362; a limiting groove is provided on the circumference of the driving wheel 363, one end of the first driving rod 368 is a C-shaped structure, and a limiting ball is provided on its inner wall, and the limiting ball is located in the limiting groove; an abutment block is also provided on the rotating shaft 361, and the abutment block is located between the two hinged seats 365, and is used to limit the moving area of ​​​​one of the limiting seats.

[0064] When the grinding device 2 starts to work, the moving grinding device 2 can drive the driving wheel 363 to start working, and the moving driving wheel 363 can drive the driven wheel 31 to rotate through the chain. At this time, the moving driven wheel 31 can drive the transmission shaft 33 to rotate, and then the moving transmission shaft 33 can drive the first bevel gear 34 to rotate, and the moving first bevel gear 34 can drive the second bevel gear 362 to rotate. At this time, the moving second bevel gear 362 can drive the first bevel gear 34 to rotate, and the moving first bevel gear 34 can drive the rotating shaft 361 to rotate. As the speed of the grinding device 2 increases, the speed of the rotating shaft 361 also increases continuously. At this time, the driving ball 367 will be subjected to a larger centrifugal force as the speed of the rotating shaft 361 increases, and the driving ball 367 can gradually move away from the rotating shaft. The movable shaft 361 is moved, and then the moving driving ball 367 can make the second connecting rod 364 move, and then the moving second connecting rod 364 can drive the first connecting rod 366 to move. At this time, the moving first connecting rod 366 can drive one of the hinge seats 365 to move, so that the sleeve 3618 can move in the axial direction of the rotating shaft 361. Since the limiting ball is located in the limiting groove, when the sleeve 3618 moves, it can press down or lift the first driving rod 368, and then the moving first driving rod 368 can drive the movable rod 3611 to move through the set first connecting member 3610, and then the moving movable rod 3611 can drive the second connecting member 3612 to move, thereby adjusting the position of the water outlet and adjusting the contact surface between the water hole in the water outlet and the water flow, thereby ensuring the injection speed of the water flow.

[0065] The water outlet portion includes a water inlet seat 3617 installed on the base 37, a water inlet pipe 3616 connected to the water inlet seat 3617, a valve core 3615 built into the water inlet pipe 3616, a movable rod 3611 connected to the valve core 3615, and a third connecting rod 3613 connected to the movable rod 3611; the third connecting rod 3613 is connected to the second connecting member 3612; the water inlet seat 3617 is connected to the injection assembly 35, and the water inlet pipe 3616 serves as the water inlet end; a water hole is provided on the valve core 3615, and the contact area between the water flow direction and the water hole is adjusted by rotating the valve core 3615 to change the water injection speed ; When the second connecting member 3612 starts to move, the moving second connecting member 3612 can drive the connecting rod 3614 to move, so that the connecting rod 3614 can drive the valve core 3615 to rotate, adjust the position of the water hole in the valve core 3615, and change the angle between the water hole and the water flow direction, thereby changing the water injection speed, and then adjusting the water injection speed according to the grinding speed of the grinding equipment 2. The magnitude of the grinding speed will affect the temperature of the workpiece to be processed. Therefore, when the grinding speed is too fast, it will cause the temperature of the workpiece to be processed to rise, and at this time the water flow rate will also increase, which can play a role in cooling the workpiece to be processed.

[0066] The injection assembly 35 includes a bracket 353 arranged on the support frame 32, a rocker 351 connected to one end of the transmission shaft 33, a second driving rod 352 movably connected to the rocker 351, a movable block 357 arranged on the second driving rod 352 and movably connected to the second driving rod 352, a propulsion rod 354 arranged on the movable block 357, a sealing block 355 arranged on the propulsion rod 354, and a propulsion cylinder 356 arranged on the base 37; the sealing block 355 is located in the propulsion cylinder 356, and the propulsion cylinder 356 is connected to the water inlet seat 3617 and the water outlet pipe 38 respectively; the movable rod 3611 and the propulsion rod 354 passes through the bracket 353; when the transmission shaft 33 starts to rotate, the moving transmission shaft 33 drives the rocker 351 to rotate, and then the moving rocker 351 can drive the second driving rod 352 to move. At this time, the moving second driving rod 352 can drive the movable block 357 to move, thereby driving the propulsion rod 354 to move, changing the movement direction of the sealing block 355 in the propulsion cylinder 356, thereby completing the injection of the cutting fluid and completing the cooling of the blade. During this process, a water outlet one-way valve is provided between the propulsion cylinder 356 and the water outlet pipe 38. When the sealing block 355 is close to the water outlet one-way valve, the water outlet one-way valve can be opened to complete the discharge of the cutting fluid.

[0067] It also includes a placement table 7 arranged on the workbench 1, and a detection unit 6 located above the placement table 7; the placement table 7 includes a lifting seat and a limit column connected to the lifting seat; the detection unit 6 includes a support frame 61 arranged on the workbench 1, a plurality of drive parts with the same structure arranged on the support frame 61, a moving disk 68 for connecting the drive part, a lighting component 69 symmetrically arranged on the moving disk 68, and a plurality of collection heads 610 evenly arranged on the moving disk 68; the drive part includes a displacement motor 62 fixedly mounted on the support frame 61, a drive shaft 63 connected to the output end of the displacement motor 62, an adjusting rod 64 sleeved on the drive shaft 63, a connecting shaft 65 for connecting the adjusting rod 64, and a joint connecting rod 66 symmetrically arranged at both ends of the connecting shaft 65; the moving disk 68 is also provided with a driven shaft 67, the other end of the joint connecting rod 66 is connected to the driven shaft 67, after completing the negative chamfering processing work, the robot 5 will process The blade is moved to the placement table 7, and then the displacement motor 62 starts to work. The moving displacement motor 62 can drive the drive shaft 63 to rotate, thereby driving the adjustment rod 64 to move. The moving adjustment rod 64 can drive the connecting shaft 65 to move. At this time, the moving connecting shaft 65 can drive the joint link 66 to move, and then the moving joint link 66 can drive the movable disk 68 to move, thereby changing the position of the illumination component 69 and the collection head 610. The illumination component 69 is used to illuminate the blade, and the distance between the illumination component 69 and the blade is adjusted to adjust the size of the blade's shadow. The chipped edge position on the blade is then detected by the collection head 610, thereby removing the blade with chipped edges, avoiding the situation where the chipped edges are too small and difficult to detect. The at least four independently arranged displacement motors 62 can increase the freedom of the illumination component 69 and the collection head 610, and then the collection and illumination areas of the collection head 610 and the illumination component 69 can be adjusted to ensure smooth blade detection.

[0068] The illumination assembly 69 includes two identical bases 691, at least four deflection rods 693 movably mounted on the bases 691, a transfer rod 694 for connecting the deflection rods 693 on different bases 691, a rotary motor 692 mounted on one of the bases 691, and a lamp 695 mounted on the other base 691. The output end of the rotary motor 692 is connected to one of the deflection rods 693. Since the acquisition head 610 and the illumination assembly 69 are adjusted synchronously, to ensure the accuracy of the detection results, during the detection process, the rotary motor 692 starts operating. The moving rotary motor 692 can drive the deflection rods 693 to move, which in turn drives the transfer rod 694 to move. The moving transfer rod 694 can then drive another deflection rod 693 to move, thereby changing the illumination area of ​​the lamp 695 on the other base 691, thereby adjusting the shadow cast by the blade and completing the detection of the blade.

[0069] Working principle description: After the blade to be processed is grasped by the manipulator 5, since the manipulator 5 is a prior art and the manipulator 5 is provided with a rotating disk, the rotating disk can be used to transport the blade to be processed to the clamping device 4, and the blade is limited by the claws provided on the placement disk 44. Then the grinding motor 21 starts to work, and the moving grinding motor 21 can drive the grinding shaft 22 to rotate, thereby causing the grinding wheel 23 to move, and then the adjusting motor 41 and the adjusting unit 45 start to work. At this time, the moving adjusting motor 41 can drive the worm 42 connected thereto to rotate, and then the moving worm 42 can The worm gear 43 meshing with it is driven to rotate, thereby driving the placement plate 44 to move, adjusting the grinding angle between the blade and the grinding wheel 23, and the distance between the blade and the grinding wheel 23 can be adjusted by the adjustment unit 45 to complete the processing of the blade; when the grinding device 2 starts to work, the moving grinding device 2 can drive the driving wheel 24 to start working, and the moving driving wheel 24 can drive the driven wheel 31 to rotate through the chain, and the moving driven wheel 31 can drive the transmission shaft 33 to rotate, and then the moving transmission shaft 33 can drive the first bevel gear 34 to rotate, and the moving first bevel gear 34 can The second bevel gear 362 is driven to rotate. At this time, the moving second bevel gear 362 can drive the first bevel gear 34 to rotate. At this time, the moving first bevel gear 34 can drive the rotating shaft 361 to rotate. As the speed of the grinding device 2 increases, the speed of the rotating shaft 361 also increases. At this time, the driving ball 367 is subjected to a large centrifugal force as the speed of the rotating shaft 361 increases, and the driving ball 367 can gradually move away from the rotating shaft 361. Then, the moving driving ball 367 can make the second connecting rod 364 move, and then the moving second connecting rod 364 can drive the first connecting rod 366 to move. At this time, the moving driving ball 367 can move the second connecting rod 364. The movable first connecting rod 366 can drive one of the hinged seats 365 to move, thereby allowing the sleeve 3618 to move in the axial direction of the rotating shaft 361. Since the limiting ball is located in the limiting groove, when the sleeve 3618 moves, it can press down or lift the first driving rod 368. Then, the moving first driving rod 368 can drive the movable rod 3611 to move through the provided first connecting member 3610. Then, the moving movable rod 3611 can drive the second connecting member 3612 to move, thereby adjusting the position of the water outlet and the contact surface between the water hole in the water outlet and the water flow, thereby ensuring the injection speed of the water flow.

[0070] When the second connecting member 3612 starts to move, the moving second connecting member 3612 can drive the connecting rod 3614 to move, so that the connecting rod 3614 can drive the valve core 3615 to rotate, adjust the position of the water hole in the valve core 3615, and change the angle between the water hole and the flow direction of the water flow, thereby changing the injection speed of the water flow, and then adjusting the water flow injection speed according to the grinding speed of the grinding equipment 2; when the transmission shaft 33 starts to rotate, the moving transmission shaft 33 drives the rocker 351 to rotate, and then the moving rocker 351 can drive the second driving rod 352 to move. At this time, the moving second driving rod 352 can drive the movable block 357 to move, thereby driving the propulsion rod 354 to move, changing the movement direction of the sealing block 355 in the propulsion cylinder 356, thereby completing the injection of the cutting fluid. After the negative chamfering is completed, the manipulator 5 moves the processed blade to the placement table 7, and then the displacement motor 62 starts to work. The moving displacement motor 62 can drive the drive shaft 63 to rotate, thereby driving the adjusting rod 64 to move. The moving adjusting rod 64 can drive the connecting shaft 65 to move. At this time, the moving connecting shaft 65 can drive the joint link 66 to move, and then the moving joint link 66 can drive the moving disk 68 to move, thereby changing the position of the illumination component 69 and the collection head 610. The blade is illuminated by the illumination component 69, and the distance between the illumination component 69 and the blade is adjusted to adjust the size of the blade's shadow. The chipped edge position on the blade is detected by the collection head 610, thereby removing the blade with chipped edges.

[0071] When performing the detection work, the rotating motor 692 starts to work, and the moving rotating motor 692 can drive the deflection rod 693 to move, and then the moving deflection rod 693 can drive the transfer rod 694 to move, so that the moving transfer rod 694 can drive another deflection rod 693 to move, thereby changing the illumination area of ​​the lamp 695 on the other base 691, completing the adjustment of the shadow produced by the blade, and completing the detection of the blade.

[0072] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. Cubic boron nitride blade, characterized in that, include: A tool holder (8) is used for turning parts, and a negative chamfer is provided on the cutting edge of the tool holder (8); Drainage plates (9) are symmetrically arranged on both sides of the tool holder (8) and are used to drain waste chips generated during the turning process; A first protrusion (10) and a second protrusion (11) are respectively arranged on the guide plate (9), wherein the first protrusion (10) is located at the vertex of the guide plate (9), and the second protrusion (11) is located between two adjacent first protrusions (10); The mounting holes respectively pass through the blade seat (8) and the guide plate (9) and are used for mounting the blade.

2. An automatic grinding machine for negative chamfering of cubic boron nitride blades, wherein the cubic boron nitride blades according to claim 1 are subjected to negative chamfering by using the automatic grinding machine, characterized in that: The automatic negative chamfer grinding machine comprises a workbench (1), and a grinding unit arranged on the workbench (1) for performing negative chamfer grinding on a blade; A water injection unit (3) is provided on the workbench (1) and is used for injecting cutting fluid into the blade during the grinding process; The water injection unit (3) comprises a base (37) arranged on the workbench (1), a support frame (32) connected to the base (37), a transmission shaft (33) arranged on the support frame (32), a first bevel gear (34) sleeved on the transmission shaft (33), an input assembly (36) meshed with the first bevel gear (34), a driven wheel (31) arranged at one end of the transmission shaft (33), an injection assembly (35) connected to the other end of the transmission shaft (33), and a water outlet pipe (38) communicated with the injection assembly (35); The grinding unit is connected to the driven wheel (31), and the spraying amount and spraying speed of the cutting fluid sprayed on the blade surface are adjusted according to the grinding rate of the grinding unit, so that the injection amount of the cutting fluid can be adjusted in real time according to the grinding speed.

3. The automatic negative chamfering grinding machine for cubic boron nitride blades according to claim 2, characterized in that: The grinding unit comprises a grinding device (2), a clamping device (4) and a manipulator (5) arranged on the workbench (1); The grinding device (2) comprises a grinding motor (21) fixedly mounted on the workbench (1), a grinding shaft (22) connected to the output end of the grinding motor (21), a driving wheel (24) sleeved on the grinding shaft (22), and a grinding wheel (23) arranged on the grinding shaft (22); A clamping device (4) comprises an adjusting unit (45) fixedly mounted on the workbench (1), an adjusting motor (41) disposed on the adjusting unit (45), a worm (42) connected to an output end of the adjusting motor (41), a worm wheel (43) connected to the worm wheel (42) and disposed on the adjusting unit (45), and a placement plate (44) disposed on the worm wheel (43); The driving wheel (24) and the driven wheel (31) are connected via a chain; The grinding motor (21) can drive the water delivery component and the injection component (35) to move by means of a chain, thereby adjusting the injection amount of the cutting fluid.

4. The automatic negative chamfering grinding machine for cubic boron nitride blades according to claim 3, characterized in that: The input assembly (36) includes a support rod (369) and a rotating shaft (361) respectively arranged on the support frame (32), an adjusting portion arranged on the rotating shaft (361), a first driving rod (368) movably connected to the adjusting portion, a first connecting member (3610) movably connected to the first driving rod (368), a movable rod (3611) connected to the first connecting member (3610), a second connecting member (3612) connected to the other end of the movable rod (3611), and a water outlet portion connected to the second connecting member (3612); The first connecting member (3610) and the second connecting member (3612) have the same structure, and include two hinged blocks hinged to each other; The first driving rod (368) is movably connected to the supporting rod (369).

5. The automatic negative chamfering grinding machine for cubic boron nitride blades according to claim 4, characterized in that: The adjusting portion includes a sleeve (3618) and a second bevel gear (362) sleeved on the rotating shaft (361), an articulated seat (365) respectively arranged on the sleeve (3618) and the top of the rotating shaft (361), a driving wheel (363) sleeved on the sleeve (3618), a first connecting rod (366) movably connected to one of the articulated seats (365), a second connecting rod (364) movably connected to the other articulated seat (365), and a driving ball (367) arranged on the second connecting rod (364); The first connecting rod (366) is movably connected to the second connecting rod (364), and the first bevel gear (34) is meshed with the second bevel gear (362); The driving wheel (363) is provided with a limiting groove on its circumference. One end of the first driving rod (368) is a C-shaped structure, and a limiting ball is provided on its inner wall. The limiting ball is located in the limiting groove.

6. The automatic negative chamfering grinding machine for cubic boron nitride blades according to claim 5, characterized in that: The water outlet portion comprises a water inlet seat (3617) mounted on the base (37), a water inlet pipe (3616) connected to the water inlet seat (3617), a valve core (3615) built into the water inlet pipe (3616), a connecting rod (3614) connected to the valve core (3615), and a third connecting rod (3613) connected to the connecting rod (3614); The third connecting rod (3613) is connected to the second connecting member (3612); The water inlet seat (3617) is connected to the injection assembly (35), and the water inlet pipe (3616) serves as the water inlet end; The valve core (3615) is provided with a water hole. By rotating the valve core (3615), the contact area between the water flow direction and the water hole is adjusted, thereby changing the water injection speed.

7. The automatic negative chamfering grinding machine for cubic boron nitride blades according to claim 6, characterized in that: The injection assembly (35) includes a bracket (353) arranged on the support frame (32), a rocker (351) connected to one end of the transmission shaft (33), a second driving rod (352) movably connected to the rocker (351), a movable block (357) arranged on the second driving rod (352) and movably connected to the second driving rod (352), a propulsion rod (354) arranged on the movable block (357), a sealing block (355) arranged on the propulsion rod (354), and a propulsion cylinder (356) arranged on the base (37); The sealing block (355) is located in the propulsion cylinder (356), and the propulsion cylinder (356) is communicated with the water inlet seat (3617) and the water outlet pipe (38) respectively; The movable rod (3611) and the propulsion rod (354) pass through the bracket (353).

8. The automatic negative chamfering grinding machine for cubic boron nitride blades according to claim 7, characterized in that: It also includes a placement table (7) arranged on the workbench (1), and a detection unit (6) located above the placement table (7); The placement platform (7) includes a lifting seat and a limiting column connected to the lifting seat; The detection unit (6) comprises a support frame (61) arranged on the workbench (1), a plurality of drive parts with the same structure arranged on the support frame (61), a movable disk (68) for connecting the drive parts, an illumination assembly (69) symmetrically arranged on the movable disk (68), and a plurality of collection heads (610) evenly arranged on the movable disk (68).

9. The automatic negative chamfering grinding machine for cubic boron nitride blades according to claim 8, characterized in that: The driving unit includes a displacement motor (62) fixedly mounted on the support frame (61), a driving shaft (63) connected to the output end of the displacement motor (62), an adjusting rod (64) sleeved on the driving shaft (63), a connecting shaft (65) for connecting the adjusting rod (64), and joint connecting rods (66) symmetrically arranged at both ends of the connecting shaft (65); The movable disk (68) is also provided with a driven shaft (67), and the other end of the joint connecting rod (66) is connected to the driven shaft (67).

10. The automatic negative chamfering grinding machine for cubic boron nitride blades according to claim 9, characterized in that: The lighting assembly (69) comprises two bases (691) of identical structure, at least four deflection rods (693) movably arranged on the bases (691), a transfer rod (694) for connecting the deflection rods (693) located on different bases (691), a rotating motor (692) arranged on one of the bases (691), and a lamp (695) arranged on the other base (691); The output end of the rotating motor (692) is connected to one of the deflection rods (693).

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