High-precision tool sharpener for precise microbit and tool sharpening process

Abstract

The invention relates to the field of tool sharpeners, in particular to a precise microbit high-precision tool sharpener and a tool sharpening process. The technical problem to be solved is that a microbit is easy to deform after being polished, and the microbit is scrapped. According to the technical scheme, the device comprises a base and further comprises a first rotating sliding rail, the base is rotationally connected with the first rotating sliding rail, the first rotating sliding rail is slidably connected with a first sliding frame, the top of the first sliding frame is fixedly connected with a first supporting frame, and one side of the first supporting frame is fixedly connected with a second rotating sliding rail; a second sliding frame is slidably connected into the second rotating sliding rail. Friction force and pressure of the grinding wheel can be applied to the micro drill bit in the grinding process, and the groove sliding block has a supporting effect on the grinding end of the micro drill bit, so that the grinding end of the micro drill bit can be protected against bending, and the grinding quality of the micro drill bit is improved.

Description

Technical Field

[0001] The invention relates to the field of knife sharpeners, and in particular to a high-precision knife sharpener for precision micro drills and a knife sharpening process. Background Art

[0002] A drill bit sharpener is a device specially used for grinding and trimming drill bits. It uses a high-hardness grinding wheel to grind the damaged drill bit surface to increase the service life and processing sharpness of the drill bit.

[0003] The existing drill bit sharpener uses a grinding wheel to grind the drill bit surface at various angles, and ensures the sharpness of the drill bit by adjusting the front angle and the back angle of the drill bit. However, when grinding a micro drill bit, due to the small diameter of the micro drill bit, direct grinding is prone to cause the micro drill bit to deform due to friction and extrusion by the grinding wheel, making the micro drill bit scrapped. Therefore, there is an urgent need for a high-precision micro drill bit sharpener and a sharpening process that can protect the micro drill bit from being bent. Summary of the invention

[0004] In order to overcome the disadvantage that a micro drill is easily deformed during grinding, which makes the micro drill scrapped, the technical problem to be solved is to provide a high-precision micro drill sharpener and a sharpening process that can protect the micro drill from being bent.

[0005] The technical solution of the present invention is: a high-precision tool sharpening machine for precision micro drills, comprising a base and a first rotating slide rail, the base is rotatably connected to the first rotating slide rail, the first sliding frame is slidably connected to the first rotating slide rail, the top of the first sliding frame is fixedly connected to a first supporting frame, one side of the first supporting frame is fixedly connected to a second rotating slide rail, the second sliding frame is slidably connected to the second rotating slide rail, a first spring is connected between the second rotating slide rail and the second sliding frame, one side of the second sliding frame is fixedly connected to the second supporting frame, a plurality of groove sliders are slidably connected to the second supporting frame, and a plurality of groove sliders are slidably connected to the second supporting frame. A special-shaped groove is provided on the rear side of the groove slider, and a hollow shaft is fixedly connected through the second support frame, a protrusion is provided on the inner wall of the hollow shaft, a vortex rod is rotatably connected in the hollow shaft, the vortex rod can contact the protrusion of the hollow shaft, rectangular slide grooves are symmetrically distributed on the hollow shaft, an extrusion plate is slidably connected in the rectangular slide groove, a plurality of eccentric rings are rotatably connected to the outer wall of the hollow shaft, the eccentric rings correspond to a plurality of groove sliders one by one and contact each other, a first hand wheel is fixedly connected to one end of the vortex rod, a T-shaped rod is slidably connected in the second support frame, and a second spring is connected between the second support frame and the T-shaped rod.

[0006] Preferably, it also includes a threaded cylinder, a threaded cylinder is rotatably connected to the second support frame, a friction cylinder is fixedly connected to the outer wall of the threaded cylinder, the friction cylinder is in friction contact with one side of the first hand wheel, a threaded rod is connected to the inner thread of the threaded cylinder, one end of the threaded rod is rotatably connected to a rotating disk and a cross beam, a rotating support frame is rotatably connected to the cross beam, a friction roller is fixedly connected to one side of the rotating support frame, one end of the friction roller is rotatably connected to an elastic support frame, and the elastic support frame is fixedly connected to the rotating disk.

[0007] Preferably, it also includes a rotating cylinder, a rotating cylinder is rotatably connected to one side of the first support frame, a second hand wheel is rotatably connected to the outer wall of the rotating cylinder, a first bevel gear and a plurality of circumferentially distributed second bevel gears are rotatably connected to the inner wall of the rotating cylinder, the plurality of second bevel gears are all meshed with the first bevel gear, a rotating groove is provided on the outer wall of the rotating cylinder, the second hand wheel passes through the rotating groove through a column and is fixedly connected to the first bevel gear, the second bevel gear is threadedly connected with a clamping block, the plurality of clamping blocks are slidably connected to the rotating cylinder together, and a micro drill is clamped together.

[0008] Preferably, it also includes a first output disk, a first limiting rod, a worm and a first motor, the first output disk is rotatably connected in the first support frame, one side of the first output disk is fixedly connected to the rotating cylinder, and the other side is provided with a first swinging wheel, the outer wall of the first swinging wheel is provided with four first circular grooves, the first output disk contacts with the four first circular grooves of the first swinging wheel through four first cylinders, the diameter of the first circular groove is larger than the first cylinder, a plurality of first limiting rods are fixedly connected in the circumferential direction of the first support frame, the first swinging wheel contacts the first limiting rod, a first eccentric rod is rotatably connected to the first swinging wheel, the first eccentric rod is rotatably connected to the first support frame, and a worm wheel is fixedly connected to the outer wall of the first eccentric rod, a worm gear is rotatably connected in the first support frame, the worm gear is meshed with the worm gear, a first motor is fixedly installed on one side of the first support frame, and the output shaft of the first motor passes through the first support frame and is fixedly connected to the worm gear.

[0009] Preferably, it also includes a first screw rod, a second output disk, a second limit rod, a second motor and a third motor, the first rotating slide rail is rotatably connected to the first screw rod, the first screw rod is threadedly connected to the first sliding frame, one side of the first rotating slide rail is rotatably connected to the second output disk, one side of the second output disk is fixedly connected to the first screw rod, and the other side is provided with a second swinging wheel, the outer wall of the second swinging wheel is provided with four second circular grooves, the second output disk contacts with the four second circular grooves of the second swinging wheel through four second cylinders, the diameter of the second circular groove is larger than the second cylinder, and a plurality of second limit rods are fixedly connected to the inner wall of one side of the first rotating slide rail in a circumferential direction, the second swing wheel contacts one or two of the second limit rods, the second swing wheel is rotatably connected to the second eccentric rod, the second motor is fixedly installed on one side of the first rotating slide rail, the output shaft of the second motor is fixedly connected to the second eccentric rod, and the third motor is fixedly installed on the other end of the first rotating slide rail, and the output shaft of the third motor passes through the first rotating slide rail and is fixedly connected to the base.

[0010] Preferably, it also includes a positioning slider, which is slidably connected to the first rotating slide rail, and medium-shaped circular grooves are symmetrically distributed on both sides of the positioning slider. A first sliding column is slidably connected in the medium-shaped circular groove, a friction pad is fixed to the bottom end of the first sliding column, and a third spring is connected between the medium-shaped circular groove and the first sliding column.

[0011] Preferably, it also includes a limiting slide rail and a second sliding column. The limiting slide rails are symmetrically fixed to both sides of the first sliding frame. The second sliding column is symmetrically fixed to the positioning slider. The second sliding column is slidably connected to the limiting slide rail.

[0012] Preferably, it also includes a third support frame, a light rod and a second screw rod, the third support frame and the light rod are fixedly connected to the base, the third support frame is fixedly connected to the light rod, a third sliding frame is slidably connected in the third support frame, the third sliding frame is slidably connected to the light rod, a second screw rod is rotatably connected to the base, the second screw rod is rotatably connected to the third support frame and is threadedly connected to the third sliding frame, a fourth motor and a reduction motor box are fixedly installed on the top of the third support frame, the output shaft of the fourth motor passes through the third support frame and is fixedly connected to the second screw rod, and the output shaft of the reduction motor box is fixedly connected to a sanding block.

[0013] Preferably, it also includes a first rotating cross, the output shaft of the reduction motor box is fixedly connected to the first rotating cross, four sanding blocks are circumferentially distributed and rotatably connected to the first rotating cross, the front end of the first rotating cross is sleeved and connected to the second rotating cross, the front end of the first rotating cross is provided with a first annular tooth, the rear end of the second rotating cross is provided with a second annular tooth engaged with the first annular tooth, a disc-shaped tension spring is rotatably connected between the first rotating cross and the second rotating cross, the second rotating cross is circumferentially distributed and slidably connected to a rotating slide, a fourth spring is connected between the second rotating cross and the rotating slide, the fourth spring is in a compressed state, and the rotating slide is sleeved and connected to the sanding block.

[0014] Preferably, a sharpening process of a precision micro drill high-precision sharpening machine comprises the following steps: S1: according to the grinding requirements of the micro drill, the second rotating cross is rotated to drive the grinding block to rotate, so that the arc surface of the grinding block with appropriate roughness is close to the rotating cylinder, the second sliding frame is pushed, the second supporting frame is driven to approach the grinding block, the micro drill is inserted into the rotating cylinder, and the second hand wheel is rotated to drive the clamping block to position the micro drill; S2: rotating the first hand wheel to make the eccentric ring lose the friction limit, loosening the second sliding frame, making the groove slider contact the micro drill bit, and driving the eccentric ring to rotate, the micro drill bit causes the friction roller to rotate through friction, and the friction roller rotates to drive the limit groove slider, thereby supporting the micro drill bit; S3: starting the first motor to drive the micro drill to rotate axially to adjust the front angle grinding angle of the micro drill, starting the third motor to drive the micro drill to rotate vertically to adjust the top angle grinding angle of the micro drill, starting the fourth motor to drive the grinding wheel grinding block to move up and down, the contact angle between the grinding block and the micro drill changes, and the rear angle grinding angle of the micro drill is adjusted; S4: starting the second motor to drive the micro drill to approach the sanding block for grinding, and at the same time drive the positioning slider to slide close to the sanding block. After the micro drill completes one grinding, the second motor drives the micro drill away from the sanding block, and grinds again after adjusting the angle of the micro drill until the first sliding frame contacts the positioning slider, so that the micro drill moves the same distance each time it grinds, and then repeats the step of grinding again with the micro drill; S5: After the micro drill has finished grinding, the second motor is started to drive the micro drill away from the grinding wheel and the grinding block, and the micro drill is driven to complete the reset.

[0015] The beneficial effects of the present invention are: 1. The micro drill bit will be subjected to the friction and pressure of the grinding wheel during the grinding process. Since the groove slider supports the grinding end of the micro drill bit, it can protect the grinding end of the micro drill bit from bending, thereby improving the grinding quality of the micro drill bit.

[0016] 2. The friction roller will be rotated by friction of the grinding end of the micro drill during movement, so that the friction roller drives the cross beam to rotate through the rotating support frame, and the rotation of the cross beam drives the threaded cylinder to rotate through the threaded rod, so that the threaded cylinder drives the first hand wheel to rotate through the friction cylinder, thereby driving the extrusion plate through the eccentric ring limit groove slider, so that the groove slider measures the distance between the friction roller and the grinding end of the micro drill through the limit of the micro drill, and keeps a close distance between the groove slider and the position where the micro drill needs to be polished, thereby further improving the protection effect of the groove slider on the grinding end of the micro drill and improving the grinding quality of the micro drill.

[0017] 3. The first sliding frame moves close to the grinding wheel again for the next grinding of the micro drill. The first sliding frame moves close to the grinding wheel until it contacts the positioning slider, indicating that the distance moved by the micro drill for two grindings is the same, thereby ensuring that the blade of the micro drill is located at its own axis, thereby improving the grinding quality of the micro drill. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic structural diagram of a third sliding frame of the present invention; Figure 3 It is a structural schematic diagram of the rotating drum of the present invention; Figure 4is a partial cutaway schematic diagram of the second support frame of the present invention; Figure 5 It is a partial cutaway schematic diagram of the hollow shaft of the present invention; Figure 6 It is a structural schematic diagram of the threaded barrel of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8 It is a partial cutaway schematic diagram of the clamping block of the present invention; Fig. 9 It is a partial cutaway schematic diagram of the first support frame of the present invention; Fig.10 It is a schematic diagram of the overall structure of the worm gear of the present invention; Fig.11 It is a partial cutaway schematic diagram of the first swing wheel of the present invention; Fig.12 It is an exploded schematic diagram of the first output disk of the present invention; Fig.13 It is a structural schematic diagram of the first rotating slide rail of the present invention; Fig.14 It is a partial cutaway schematic diagram of the positioning slide block of the present invention; Fig.15 It is a schematic structural diagram of the first sliding column of the present invention; Fig.16 is a partial cutaway schematic diagram of a first rotating cross of the present invention; Fig.17 It is a partial cutaway schematic diagram of the second rotating cross of the present invention.

[0019] Marked in the figure: 1_base, 2_first rotating slide rail, 3_first sliding frame, 4_first supporting frame, 5_second rotating slide rail, 6_second sliding frame, 7_second supporting frame, 701_threaded cylinder, 702_friction cylinder, 703_threaded rod, 704_rotating disk, 705_cross beam, 706_rotating support frame, 707_friction roller, 708_elastic support frame, 709_T-bar, 8_groove slider, 9_hollow shaft, 10_vortex rod, 11_extrusion plate, 12_eccentric ring, 13_first hand wheel, 14_rotating cylinder, 15_second hand wheel, 16_first bevel gear, 17_second bevel gear, 18_clamping block, 19_micro drill, 20_first output disk , 21_first swing wheel, 22_first limit rod, 23_first eccentric rod, 24_worm wheel, 25_worm, 26_first motor, 27_first screw rod, 28_second output disk, 29_second swing wheel, 30_second limit rod, 31_second eccentric rod, 32_second motor, 33_third motor, 34_positioning slider, 35_first sliding column, 36_limiting slide rail, 37_second sliding column, 38_third support frame, 39_light rod, 40_third sliding frame, 41_second screw rod, 42_fourth motor, 43_reduction motor box, 44_safety cover, 45_first rotating cross, 46_grinding block, 47_second rotating cross, 48_rotating slide. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0021] A high-precision micro drill sharpener, such as Figure 1-Figure 17As shown, it includes a base 1 and a first rotating slide rail 2. The base 1 is rotatably connected to the first rotating slide rail 2. The first sliding frame 3 is slidably connected to the first rotating slide rail 2. The top of the first sliding frame 3 is fixedly connected to a first supporting frame 4. A second rotating slide rail 5 is fixedly connected to one side of the first supporting frame 4. A second sliding frame 6 is slidably connected to the second rotating slide rail 5. A first spring is connected between the second rotating slide rail 5 and the second sliding frame 6. A second supporting frame 7 is fixedly connected to one side of the second sliding frame 6. A plurality of groove sliders 8 are slidably connected to the second supporting frame 7. Special-shaped grooves are provided on the rear sides of the plurality of groove sliders 8. The grooves gradually become larger from left to right. A hollow groove is fixedly connected through the second supporting frame 7. Shaft 9, a protrusion is provided on the inner wall of the hollow shaft 9, a vortex rod 10 is rotatably connected in the hollow shaft 9, the vortex rod 10 can contact the protrusion of the hollow shaft 9, rectangular slide grooves are symmetrically distributed on the hollow shaft 9, an extrusion plate 11 is slidably connected in the rectangular slide groove, a plurality of eccentric rings 12 are rotatably connected to the outer wall of the hollow shaft 9, the thickness of the extrusion plate 11 is slightly larger than the thickness of the hollow shaft 9, so as to limit the eccentric ring 12 when the extrusion plate 11 is squeezed, the eccentric ring 12 corresponds to a plurality of groove sliders 8 one by one and contacts with each other, a first hand wheel 13 is fixedly connected to one end of the vortex rod 10, a T-bar 709 is slidably connected in the second support frame 7, and a second spring is connected between the second support frame 7 and the T-bar 709.

[0022] It also includes a threaded cylinder 701, which is rotatably connected to the second support frame 7, a friction cylinder 702 is fixedly connected to the outer wall of the threaded cylinder 701, the friction cylinder 702 is in friction contact with one side of the first hand wheel 13, and a threaded rod 703 is connected to the inner thread of the threaded cylinder 701. The threaded cylinder 701, the threaded rod 703 and the second support frame 7 form a cavity filled with gas, one end of the threaded rod 703 is rotatably connected to a rotating disk 704, and a cross beam 705 is rotatably connected inside the end, and a rotating support frame 706 is rotatably connected to the outer wall of the cross beam 705, a friction roller 707 is fixedly connected to one side of the rotating support frame 706, and one end of the friction roller 707 is rotatably connected to an elastic support frame 708, and the elastic support frame 708 is fixedly connected to the rotating disk 704.

[0023] It also includes a rotating cylinder 14, one side of the first support frame 4 is rotatably connected to the rotating cylinder 14, the outer wall of the rotating cylinder 14 is rotatably connected to the second hand wheel 15, the inner wall of the rotating cylinder 14 is rotatably connected to the first bevel gear 16 and a plurality of circumferentially distributed second bevel gears 17, the plurality of second bevel gears 17 are all meshed with the first bevel gear 16, the outer wall of the rotating cylinder 14 is provided with a rotating groove, the second hand wheel 15 passes through the rotating groove through the column and is fixedly connected to the first bevel gear 16, the second bevel gear 17 is threadedly connected to a clamping block 18, the second bevel gear 17 can lock the position of the clamping block 18, the plurality of clamping blocks 18 are slidably connected to the rotating cylinder 14 together, and are clamped with a micro drill 19 together, the micro drill 19 can contact and clamp with the groove of the groove slider 8, and can contact with the friction roller 707.

[0024] The first output disk 20 is also included. The first output disk 20 is rotatably connected in the first support frame 4. One side of the first output disk 20 is fixedly connected to the rotating cylinder 14, and the other side is provided with a first swing wheel 21. The outer wall of the first swing wheel 21 is provided with four first circular grooves. The first output disk 20 contacts the four first circular grooves of the first swing wheel 21 through four first circular cylinders. The diameter of the first circular groove is larger than that of the first circular cylinder. The outer wall of the first swing wheel 21 is wavy. A plurality of first limiting rods 22 are circumferentially distributed and fixedly connected in the first support frame 4. The number of the first limiting rods 22 is slightly larger than that of the first The number of recessed surfaces on the outer wall of the swing wheel 21, the first swing wheel 21 contacts the first limit rod 22, the first swing wheel 21 is rotatably connected with the first eccentric rod 23, the first eccentric rod 23 is rotatably connected with the first support frame 4, and the outer wall of the first eccentric rod 23 is fixedly connected with a worm gear 24, the first support frame 4 is rotatably connected with a worm 25, the worm wheel 24 is meshed with the worm gear 25, and the worm gear 25 can lock the position of the worm wheel 24, and a first motor 26 is fixedly installed on one side of the first support frame 4, and the output shaft of the first motor 26 passes through the first support frame 4 and is fixedly connected to the worm gear 25.

[0025] The first rotating slide rail 2 also includes a first screw rod 27, which is rotatably connected to the first screw rod 27, and the first screw rod 27 is threadedly connected to the first sliding frame 3. A second output disk 28 is rotatably connected to one side of the first rotating slide rail 2. One side of the second output disk 28 is fixedly connected to the first screw rod 27, and the other side is provided with a second swing wheel 29. The outer wall of the second swing wheel 29 is provided with four second circular grooves. The second output disk 28 contacts with the four second circular grooves of the second swing wheel 29 through four second cylinders. The diameter of the second circular groove is larger than that of the second cylinder. The outer wall of the second swing wheel 29 is wavy. A plurality of second limit rods 30 are circumferentially distributed and fixedly connected to the inner wall of one side of the rotating slide rail 2. The second swing wheel 29 is in contact with the second limit rod 30. The number of the second limit rods 30 is slightly greater than the number of the recessed surfaces on the outer wall of the second swing wheel 29. A second eccentric rod 31 is rotatably connected to the second swing wheel 29. A second motor 32 is fixedly installed on one side of the first rotating slide rail 2. The output shaft of the second motor 32 is fixedly connected to the second eccentric rod 31. A third motor 33 is fixedly installed on the other end of the first rotating slide rail 2. The output shaft of the third motor 33 passes through the first rotating slide rail 2 and is fixedly connected to the base 1.

[0026] It also includes a positioning slider 34, which is slidably connected to the first rotating slide rail 2. Medium-shaped circular grooves are symmetrically distributed on both sides of the positioning slider 34. A first sliding column 35 is slidably connected in the medium-shaped circular groove. A friction pad is fixed to the bottom end of the first sliding column 35. The friction pad contacts the top of the first rotating slide rail 2. The friction pad is used to limit the movement of the positioning slider 34. A third spring is connected between the medium-shaped circular groove and the first sliding column 35.

[0027] It also includes a limiting slide rail 36 and a second sliding column 37. The limiting slide rails 36 are symmetrically fixed on both sides of the first sliding frame 3. The second sliding column 37 is symmetrically fixed on the positioning slider 34. The second sliding column 37 is slidably connected to the limiting slide rail 36. The limiting slide rail 36 is used to drive the positioning slider 34 to reset.

[0028] The third support frame 38 and the light rod 39 are fixedly connected to the base 1, the third support frame 38 is fixedly connected to the light rod 39, a third sliding frame 40 is slidably connected in the third support frame 38, the third sliding frame 40 is slidably connected to the light rod 39, a second screw rod 41 is rotatably connected to the base 1, the second screw rod 41 is rotatably connected to the third support frame 38, and is threadedly connected to the third sliding frame 40, the light rod 39 is used to limit the third sliding frame 40 so that the second screw rod 41 can drive the third sliding frame 40 to move, a fourth motor 42 is fixedly installed on the top of the third support frame 38, the output shaft of the fourth motor 42 passes through the third support frame 38 and is fixedly connected to the second screw rod 41, a reduction motor box 43 is fixedly installed on the top of the third sliding frame 40, a safety cover 44 is fixedly connected to the top of the outer shell of the reduction motor box 43, and the safety cover 44 prevents debris of the micro drill 19 from flying out and injuring the staff.

[0029] It also includes a first rotating cross 45, the output shaft of the reduction motor box 43 is fixedly connected to the first rotating cross 45, and four grinding blocks 46 are circumferentially distributed and rotatably connected on the first rotating cross 45, wherein the arc surfaces of two grinding blocks 46 have different roughnesses, and the front end of the first rotating cross 45 is sleeved and connected to the second rotating cross 47, the front end of the first rotating cross 45 is provided with a first annular tooth, and the rear end of the second rotating cross 47 is provided with a second annular tooth engaged with the first annular tooth, a disc-shaped tension spring is rotatably connected between the first rotating cross 45 and the second rotating cross 47, and a rotating slide 48 is circumferentially distributed and slidably connected on the second rotating cross 47, a fourth spring is connected between the second rotating cross 47 and the rotating slide 48, and the fourth spring is in a compressed state, and the rotating slide 48 is sleeved and connected to the grinding block 46.

[0030] A high-precision micro drill bit sharpening process comprises the following steps: S1: according to the grinding requirements of the micro drill 19, the second rotating cross 47 is rotated, and the second rotating cross 47 drives the grinding block 46 to rotate, so that the arc surface of the grinding block 46 with appropriate roughness is close to the rotating cylinder 14, the second sliding frame 6 is pushed, and the second supporting frame 7 is driven to approach the grinding block 46, the micro drill 19 is inserted into the rotating cylinder 14, and the second hand wheel 15 is rotated, so as to drive the clamping block 18 to position the micro drill 19; S2: rotating the first hand wheel 13 to make the eccentric ring 12 lose the friction limit, loosening the second sliding frame 6, making the groove slider 8 contact the micro drill 19, and driving the eccentric ring 12 to rotate, the micro drill 19 causes the friction roller 707 to rotate through friction, and the friction roller 707 rotates to drive the limit groove slider 8, thereby supporting the micro drill 19; S3: Start the first motor 26 to drive the micro drill 19 to rotate axially to adjust the front angle grinding angle of the micro drill 19, start the third motor 33 to drive the micro drill 19 to rotate vertically to adjust the top angle grinding angle of the micro drill 19, start the fourth motor 42 to drive the grinding wheel 44 and the grinding block 46 to move up and down, and the contact angle between the grinding block 46 and the micro drill 19 changes to adjust the rear angle grinding angle of the micro drill 19; S4: Start the second motor 32 to drive the micro drill 19 to approach the sanding block 46 for grinding, and at the same time drive the positioning slider 34 to slide close to the sanding block 46. After the micro drill 19 completes one grinding, the second motor 32 drives the micro drill 19 away from the sanding block 46, and grinds again after adjusting the angle of the micro drill 19 until the first sliding frame 3 contacts the positioning slider 34, so that the micro drill 19 moves the same distance each time it grinds, and then repeats the step of grinding again with the micro drill 19; S5: After the micro drill 19 completes grinding, the second motor 32 is started to drive the micro drill 19 away from the grinding wheel 44 and the grinding block 46, and the micro drill 19 is driven to complete the reset.

[0031] In the initial state, several clamping blocks 18 are away from each other, the first sliding frame 3 is located at the right end of the first rotating slide rail 2, and the T-bar 709 contacts and squeezes the eccentric ring 12. First, the staff selects the arc surface with appropriate roughness on the grinding block 46 according to the grinding requirements of the micro drill 19. If the arc surface with appropriate roughness on the grinding block 46 is away from the rotating cylinder 14 in the initial state, the second rotating cross 47 is pulled forward and rotated. The second rotating cross 47 moves forward to disengage its second annular teeth from the first annular teeth of the first rotating cross 45. At the same time, the second rotating cross 47 moves to lengthen the disc tension spring, and then The second rotating cross 47 is manually rotated clockwise, and the second rotating cross 47 drives the rotating slide 48 to rotate. The rotating slide 48 drives the grinding block 46 to rotate clockwise around the connection with the first rotating cross 45. During the rotation of the grinding block 46, the rotating slide 48 will be pulled away from the second rotating cross 47. At this time, the fourth spring is stretched. As the grinding block 46 rotates, the fourth spring changes from a stretched state to a contracted state, and drives the rotating slide 48 from being away from to approaching the second rotating cross 47. Then, the rotation of the grinding block 46 ends, and the fourth spring completes the contraction. At this time, the arc surface of the grinding block 46 with a suitable roughness is close to the second rotating cross 47. The grinding block 46 is moved closer to the rotating cylinder 14, and the four grinding blocks 46 form a complete circle. Then the staff releases the second rotating cross 47, so that the disc-shaped tension spring contracts and pulls the second rotating cross 47 to reset. The second annular teeth of the second rotating cross 47 re-engage with the first annular teeth of the first rotating cross 45. At this time, the arc surface of the grinding block 46 is quickly switched. The arc surface switching of the grinding block 46 can make the micro drill 19 be polished with different precisions. Then the staff pushes the second sliding frame 6 to slide in the second rotating slide rail 5, and drives the second support frame 7 to approach the grinding block 46. When the first spring is stretched by the second sliding frame 6, the micro drill bit 19 to be polished is inserted into the rotating cylinder 14, and the second hand wheel 15 is rotated. The second hand wheel 15 rotates through the column to drive the first bevel gear 16 to rotate. The first bevel gear 16 rotates through the second bevel gear 17 to drive several clamping blocks 18 to slide in the rotating cylinder 14, so that several clamping blocks 18 contact and clamp the micro drill bit 19 together. Since the thread pitch of the clamping block 18 is small, the movement of the clamping block 18 is self-locking. The clamping block 18 can increase friction by squeezing, thereby stably fixing the micro drill bit 19 and realizing the positioning of the micro drill bit 19.

[0032] After completing the positioning of the micro drill 19, Figure 4 , Figure 5As shown, the staff rotates the first hand wheel 13 counterclockwise, so that the first hand wheel 13 drives the vortex rod 10 to rotate in the hollow shaft 9 until the protrusion in the hollow shaft 9 limits the vortex rod 10. At this time, the vortex rod 10 no longer squeezes the squeezing plate 11, so that the squeezing plate 11 does not limit the eccentric ring 12 by friction. Since the center of gravity of the eccentric ring 12 is not on the axis of the vortex rod 10, the eccentric ring 12 will rotate along the hollow shaft 9 under the squeezing of the T-shaped rod 709 under the gravity until the eccentric ring 12 stops moving when the force is stable. Then the staff slowly releases the second sliding frame 6, so that the first spring contracts and drives the second sliding frame 6 to slide along the second rotating slide rail 5. The second sliding frame 6 drives the groove slider 8 to move synchronously through the second supporting frame 7, so that the groove slider 8 moves to contact the grinding end of the micro drill 19. The grinding end of the micro drill 19 squeezes the groove of the groove slider 8, so that the groove slider 8 moves to squeeze the eccentric ring 12. The eccentric ring 12 is squeezed and rotates along the hollow shaft 9 and squeezes the T-bar 709. The T-bar 709 compresses the second spring. Figure 6-Figure 7As shown, the second support frame 7 moves through the threaded barrel 701 to drive the threaded rod 703 to move, the threaded rod 703 moves through the rotating disk 704 to drive the elastic support frame 708 to move, the elastic support frame 708 moves to drive the friction roller 707 to rub against the grinding end of the micro drill 19, so that the friction roller 707 rotates counterclockwise, the friction roller 707 rotates counterclockwise through the rotating support frame 706 and the cross beam 705 to drive the threaded rod 703 to rotate, the threaded rod 703 is located in the threaded barrel 701 and rotates counterclockwise, the threaded rod 703 rotates counterclockwise to slide into the threaded barrel 701, thereby squeezing the internal gas of the cavity formed by the threaded barrel 701, the threaded rod 703 and the second support frame 7, but the internal gas in the cavity will increase after being squeezed, which will prevent the internal gas from being sucked away. The friction roller 707 is also pressed against the first hand wheel 13 by the friction roller 708, and the friction roller 707 is pressed against the first hand wheel 13 by the friction roller 708. 1. The internal gas of the cavity formed by the threaded rod 703 and the second support frame 7, the threaded rod 703 moves to slow down the counterclockwise rotation of the threaded cylinder 701 around the thread of the threaded rod 703, and the first hand wheel 13 rotates clockwise to drive the vortex rod 10 to rotate in the hollow shaft 9 until the vortex rod 10 squeezes the squeezing plate 11, and the vortex rod 10 rubs the limiting eccentric ring 12 through the squeezing plate 11, and the eccentric ring 12 is fixed at an angle on the hollow shaft 9, thereby supporting the groove slider 8 to no longer slide. At this time, the special-shaped groove of the groove slider 8 can limit the grinding end of the micro drill bit 19 when the micro drill bit 19 is processed, thereby protecting the micro drill bit 19 from deformation. Then the staff releases the second sliding frame 6, and the special-shaped groove of the groove slider 8 is passed through The grinding end of the micro drill 19 is in contact with the micro drill 19 to realize the movement limitation along the axial direction of the micro drill 19, so that the groove slider 8 keeps the second sliding frame 6 stationary in the second rotating slide rail 5 through the second support frame 7. Since the friction roller 707 can drive the eccentric ring 12 to limit the groove slider 8 when it rotates, the groove slider 8 is further limited by the micro drill 19. Therefore, the friction roller 707 can measure the distance between itself and the grinding end of the micro drill 19 by the number of circles it rotates. The more circles the friction roller 707 rotates, the farther the groove slider 8 is from the grinding end of the micro drill 19. Therefore, the special-shaped groove of the groove slider 8 can keep a close distance to the position where the micro drill 19 needs to be polished. In addition, since the grinding end of the micro drill 19 will squeeze the friction roller 707,The distance between the friction roller 707 and the grinding end of the micro drill 19 is thereby increased, so that the special-shaped groove of the groove slider 8 can adjust the protection position according to the diameter of the micro drill 19, further improving the protection effect of the groove slider 8 on the grinding end of the micro drill 19.

[0033] After completing the protection of the grinding end of the micro drill 19, the staff starts the first motor 26. The output shaft of the first motor 26 rotates through the worm 25 to drive the worm wheel 24 to rotate. The rotation of the worm wheel 24 drives the first eccentric rod 23 to rotate. The first eccentric rod 23 drives the first swing wheel 21 to rotate eccentrically. The eccentric rotation of the first swing wheel 21 is a revolution, so that the wave concave surface of the first swing wheel 21 continuously contacts different first limit rods 22, thereby causing the first swing wheel 21 to rotate on the first eccentric rod 23. The rotation of the first swing wheel 21 will squeeze the four first cylinders of the first output disk 20 through the four first circular grooves, thereby causing the first output disk 20 to rotate. The rotation of the first output disk 20 drives the rotating cylinder 14 to rotate. The rotation of the rotating cylinder 14 drives the micro drill 19 to rotate through the clamping block 18, thereby adjusting the front angle grinding angle of the micro drill 19, and then the first motor 26 is turned off.

[0034] After completing the adjustment of the front angle grinding angle of the micro drill 19, the staff starts the third motor 33. Since the output shaft of the third motor 33 is fixedly connected to the base 1, the output shaft of the third motor 33 will not rotate, and the rotational force will be transmitted to the outer casing of the third motor 33, so that the outer casing of the third motor 33 drives the first sliding frame 3 to rotate through the first rotating slide rail 2. The rotation of the first sliding frame 3 drives the rotating cylinder 14 to rotate through the first supporting frame 4. The rotation of the rotating cylinder 14 drives the micro drill 19 to rotate through the clamping block 18, thereby adjusting the top angle grinding angle of the micro drill 19, and then turning off the third motor 33.

[0035] After completing the adjustment of the top angle grinding angle of the micro drill bit 19, the staff starts the fourth motor 42, so that the output shaft of the fourth motor 42 drives the third sliding frame 40 to move along the light rod 39 through the second screw 41, and the third sliding frame 40 drives the first rotating cross 45 to move through the reduction motor box 43, and the first rotating cross 45 drives the grinding block 46 to move synchronously. The up and down movement of the grinding block 46 changes the contact angle between it and the micro drill bit 19, thereby realizing the adjustment of the back angle grinding angle of the micro drill bit 19, and then the fourth motor 42 is turned off.

[0036] After completing the adjustment of the top angle grinding angle of the micro drill 19, the staff starts the reduction motor box 43 to rotate the output shaft of the reduction motor box 43, and then drives the grinding block 46 to rotate through the first rotating cross 45, and starts the second motor 32. The output shaft of the second motor 32 rotates to drive the second eccentric rod 31 to rotate. The rotation of the second eccentric rod 31 drives the second swing wheel 29 to rotate eccentrically. The eccentric rotation of the second swing wheel 29 is a revolution, so that the wave concave surface of the second swing wheel 29 continuously contacts different second limit rods 30, so that the second swing wheel 29 rotates on the second eccentric rod 31. The rotation of the second swing wheel 29 will squeeze the four second cylinders of the second output disk 28 through the four second circular grooves, so that the second output disk 28 rotates. The rotation of the second output disk 28 drives the first sliding frame 3 to move through the first screw rod 27, and the first sliding frame 3 moves The rotating cylinder 14 is driven to move by the first support frame 4, and the movement of the rotating cylinder 14 drives the micro drill 19 to move through the clamping block 18, so that the grinding end of the micro drill 19 contacts the sanding block 46, thereby grinding the micro drill 19. The micro drill 19 will be subjected to the friction and pressure of the sanding block 46 during the grinding process. Since the groove slider 8 has a supporting effect on the grinding end of the micro drill 19, it can protect the grinding end of the micro drill 19 from bending, thereby realizing one-time grinding of the micro drill 19, and then the output shaft of the second motor 32 is reversed, so that the output shaft of the second motor 32 drives the micro drill 19 to move in the opposite direction, thereby moving away from the sanding block 46, and then the second motor 32 is stopped. After the staff adjusts the grinding angles of the top angle, front angle and back angle of the micro drill 19 again, the above-mentioned micro drill 19 grinding steps are repeated until the micro drill 19 is polished.

[0037] During the grinding process, the closer the blade of the micro drill 19 is to its own axis, the better the cutting effect of the micro drill 19 is. Therefore, it is necessary to ensure that the distance moved by the micro drill 19 each time it is ground is the same. In the above-mentioned movement of the first sliding frame 3, it is worth noting that in the initial state, the positioning slider 34 is in contact with the first sliding frame 3, and the positioning slider 34 squeezes the first sliding column 35 through the third spring, so that the first sliding column 35 is frictionally positioned on the first rotating slide rail 2 through the friction pad, so that the first sliding frame 3 can withstand a small external force without moving without damaging the first rotating slide rail 2, thereby improving the stability of the positioning slider 34. If the first sliding frame 3 moves close to the grinding block 46, the first sliding frame 3 moves to push the positioning slider 34 to move synchronously, and then the first sliding frame 3 moves away from the grinding block 46, and the first sliding frame 3 moves to drive the limiting slide rail 36 to move synchronously. The first sliding frame 3 is in the limit The first slide frame 34 moves close to the sanding block 46 until it contacts the positioning slide block 34, indicating that the distance moved by the micro drill 19 for two grindings is the same. At this time, the second motor 32 is stopped, so that the blade of the micro drill 19 after grinding tends to its own axis, thereby achieving high-quality grinding of the micro drill 19. After completing the grinding of the micro drill 19, the staff repeats the above-mentioned action of moving the first slide frame 3 away from the sanding block 46. During the movement of the first slide frame 3, the limiting slide rail 36 is driven to move synchronously, so that one end of the limiting slide rail 36 contacts the second slide column 37 and drives the positioning slide block 34 to move synchronously. The positioning slide block 34 moves through the first slide column 35 to drive the friction pad to move, thereby achieving the reset of the first slide column 35 and the friction pad.

[0038] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A high-precision micro drill sharpener, comprising a base (1), characterized in that: The invention also comprises a first rotating slide rail (2), the first rotating slide rail (2) being rotatably connected to the base (1), a first sliding frame (3) being slidably connected to the first rotating slide rail (2), a first supporting frame (4) being fixedly connected to the top of the first supporting frame (3), a second rotating slide rail (5) being fixedly connected to one side of the first supporting frame (4), a second sliding frame (6) being slidably connected inside the second rotating slide rail (5), a first spring being connected between the second rotating slide rail (5) and the second sliding frame (6), a second supporting frame (7) being fixedly connected to one side of the second sliding frame (6), a plurality of grooved sliding blocks (8) being slidably connected inside the second supporting frame (7), a plurality of grooved sliding blocks (8) being provided with special-shaped grooves on the rear sides of the plurality of grooved sliding blocks (8), and the second supporting frame ( A hollow shaft (9) is fixedly connected through the hollow shaft (7), a protrusion is arranged on the inner wall of the hollow shaft (9), a vortex rod (10) is rotatably connected inside the hollow shaft (9), the vortex rod (10) can contact the protrusion of the hollow shaft (9), rectangular slide grooves are symmetrically arranged on the hollow shaft (9), an extrusion plate (11) is slidably connected inside the rectangular slide groove, a plurality of eccentric rings (12) are rotatably connected to the outer wall of the hollow shaft (9), the eccentric rings (12) correspond to a plurality of groove sliders (8) one by one and contact each other, a first hand wheel (13) is fixedly connected to one end of the vortex rod (10), a T-shaped rod (709) is slidably connected inside the second support frame (7), and a second spring is connected between the second support frame (7) and the T-shaped rod (709).

2. A high-precision micro drill sharpener as claimed in claim 1, characterized in that: The invention also comprises a threaded cylinder (701), the threaded cylinder (701) is rotatably connected to the second support frame (7), a friction cylinder (702) is fixedly connected to the outer wall of the threaded cylinder (701), the friction cylinder (702) is in frictional contact with one side of the first hand wheel (13), a threaded rod (703) is internally threadedly connected to the threaded cylinder (701), one end of the threaded rod (703) is rotatably connected to a rotating disk (704) and a cross beam (705), a rotating support frame (706) is rotatably connected to the cross beam (705), one side of the rotating support frame (706) is fixedly connected to a friction roller (707), one end of the friction roller (707) is rotatably connected to an elastic support frame (708), and the elastic support frame (708) is fixedly connected to the rotating disk (704).

3. A high-precision micro drill sharpener as claimed in claim 2, characterized in that: The invention also comprises a rotating cylinder (14), one side of the first support frame (4) is rotatably connected to the rotating cylinder (14), the outer wall of the rotating cylinder (14) is rotatably connected to a second hand wheel (15), the inner wall of the rotating cylinder (14) is rotatably connected to a first bevel gear (16) and a plurality of circumferentially distributed second bevel gears (17), the plurality of second bevel gears (17) are all meshed with the first bevel gear (16), the outer wall of the rotating cylinder (14) is provided with a rotating slide groove, the second hand wheel (15) passes through the rotating slide groove through a column and is fixedly connected to the first bevel gear (16), the second bevel gear (17) is threadedly connected to a clamping block (18), the plurality of clamping blocks (18) are slidably connected to the rotating cylinder (14) and are clamped with a micro drill (19) together.

4. A high-precision micro drill sharpener as claimed in claim 3, characterized in that: The first output disk (20) is also included. The first support frame (4) is rotatably connected to the first output disk (20). One side of the first output disk (20) is fixedly connected to the rotating cylinder (14). The other side is provided with a first swing wheel (21). The outer wall of the first swing wheel (21) is provided with four first circular grooves. The first output disk (20) contacts the four first circular grooves of the first swing wheel (21) through four first circular cylinders. The diameter of the first circular groove is larger than that of the first circular cylinder. A plurality of first limiting rods (22) are fixedly connected to the first support frame (4) in a circumferential direction. The first swing wheel (21) is provided with a plurality of first limiting rods (22). The first swing wheel (21) is in contact with the first limit rod (22), the first eccentric rod (23) is rotatably connected to the first swing wheel (21), the first eccentric rod (23) is rotatably connected to the first support frame (4), and a worm wheel (24) is fixedly connected to the outer wall of the first eccentric rod (23), a worm (25) is rotatably connected to the inside of the first support frame (4), the worm wheel (24) is meshed with the worm (25), and a first motor (26) is fixedly installed on one side of the first support frame (4), and an output shaft of the first motor (26) passes through the first support frame (4) and is fixedly connected to the worm (25).

5. A high-precision micro drill sharpener as claimed in claim 4, characterized in that: The first rotating slide rail (2) further comprises a first screw rod (27), the first screw rod (27) being rotatably connected to the first rotating slide rail (2), the first screw rod (27) being threadedly connected to the first sliding frame (3), a second output disk (28) being rotatably connected to one side of the first rotating slide rail (2), the second output disk (28) being fixedly connected to the first screw rod (27) on one side, and a second swing wheel (29) being provided on the other side, the second swing wheel (29) having four second circular grooves formed on an outer wall thereof, the second output disk (28) being in contact with the four second circular grooves of the second swing wheel (29) via four second cylinders, the second circular grooves having a diameter greater than that of the second cylinders, A plurality of second limit rods (30) are fixedly connected to the inner wall of one side of a rotating slide rail (2) in a circumferential distribution, the second swing wheel (29) contacts one or two of the second limit rods (30), the second swing wheel (29) is rotatably connected to a second eccentric rod (31), a second motor (32) is fixedly mounted on one side of the first rotating slide rail (2), an output shaft of the second motor (32) is fixedly connected to the second eccentric rod (31), a third motor (33) is fixedly mounted on the other end of the first rotating slide rail (2), and an output shaft of the third motor (33) passes through the first rotating slide rail (2) and is fixedly connected to the base (1).

6. A high-precision micro drill sharpener as claimed in claim 5, characterized in that: The invention also comprises a positioning slider (34), the first rotating slide rail (2) is slidably connected to the positioning slider (34), the two sides of the positioning slider (34) are symmetrically provided with middle-shaped circular grooves, the middle-shaped circular groove is slidably connected to the first sliding column (35), the bottom end of the first sliding column (35) is fixedly connected to a friction pad, and a third spring is connected between the middle-shaped circular groove and the first sliding column (35).

7. A high-precision micro drill sharpener as claimed in claim 6, characterized in that: It also includes a limiting slide rail (36) and a second slide column (37). The limiting slide rails (36) are symmetrically fixed to both sides of the first slide frame (3). The second slide column (37) is symmetrically fixed to the positioning slide block (34). The second slide column (37) is slidably connected to the limiting slide rail (36).

8. A high-precision micro drill sharpener as claimed in claim 7, characterized in that: The invention also comprises a third support frame (38), a light rod (39) and a second screw rod (41); the third support frame (38) and the light rod (39) are fixedly connected to the base (1); the third support frame (38) is fixedly connected to the light rod (39); a third sliding frame (40) is slidably connected inside the third support frame (38); the third sliding frame (40) is slidably connected to the light rod (39); a second screw rod (41) is rotatably connected to the base (1); the second screw rod (41) is rotatably connected to the third support frame (38) and is threadedly connected to the third sliding frame (40); a fourth motor (42) is fixedly installed on the top of the third support frame (38); an output shaft of the fourth motor (42) passes through the third support frame (38) and is fixedly connected to the second screw rod (41); a reduction motor box (43) is fixedly installed on the top of the third sliding frame (40); a safety cover (44) is fixedly connected to the top of the outer shell of the reduction motor box (43).

9. A high-precision micro drill sharpener as claimed in claim 8, characterized in that: The invention also comprises a first rotating cross (45), the output shaft of the reduction motor box (43) is fixedly connected to the first rotating cross (45), four grinding blocks (46) are rotatably connected to the first rotating cross (45) in a circumferentially distributed manner, a second rotating cross (47) is sleeved and connected to the front end of the first rotating cross (45), a first annular tooth is provided at the front end of the first rotating cross (45), a second annular tooth engaged with the first annular tooth is provided inside the rear end of the second rotating cross (47), a disc-shaped tension spring is rotatably connected between the first rotating cross (45) and the second rotating cross (47), a rotating slide (48) is slidably connected to the second rotating cross (47) in a circumferentially distributed manner, a fourth spring is connected between the second rotating cross (47) and the rotating slide (48), and the rotating slide (48) is sleeved and connected to the grinding blocks (46).

10. A high-precision micro drill sharpener as claimed in claim 9, characterized in that: A high-precision micro drill bit sharpening process comprises the following steps: S1: rotating the second rotating cross (47) according to the grinding requirements of the micro drill bit (19), the second rotating cross (47) rotates to drive the grinding block (46) to rotate, so that the arc surface of the grinding block (46) with appropriate roughness approaches the rotating cylinder (14), pushing the second sliding frame (6), driving the second supporting frame (7) to approach the grinding block (46), inserting the micro drill bit (19) into the rotating cylinder (14), and rotating the second hand wheel (15), thereby driving the clamping block (18) to position the micro drill bit (19); S2: rotating the first hand wheel (13) to make the eccentric ring (12) lose the friction limit, loosening the second sliding frame (6), making the groove slider (8) contact the micro drill bit (19), and driving the eccentric ring (12) to rotate, so that the micro drill bit (19) causes the friction roller (707) to rotate through friction, and the friction roller (707) rotates to drive the limit groove slider (8), thereby supporting the micro drill bit (19); S3: starting the first motor (26) to drive the micro drill (19) to rotate axially, thereby adjusting the front angle grinding angle of the micro drill (19); starting the third motor (33) to drive the micro drill (19) to rotate vertically, thereby adjusting the top angle grinding angle of the micro drill (19); starting the fourth motor (42) to drive the grinding wheel (44) and the grinding block (46) to move up and down, thereby changing the contact angle between the grinding block (46) and the micro drill (19), thereby adjusting the rear angle grinding angle of the micro drill (19); S4: starting the second motor (32) to drive the micro drill (19) to approach the sanding block (46) for sanding, and at the same time driving the positioning slide block (34) to slide close to the sanding block (46). After the micro drill (19) completes one sanding, the second motor (32) drives the micro drill (19) away from the sanding block (46), and sanding is performed again after adjusting the angle of the micro drill (19) until the first sliding frame (3) contacts the positioning slide block (34), so that the micro drill (19) moves the same distance each time it sands, and then repeats the step of sanding again with the micro drill (19); S5: After the micro drill (19) has completed grinding, the second motor (32) is started to drive the micro drill (19) away from the grinding wheel (44) and the grinding block (46), and to complete the reset.

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