CN115229569B - Intelligent sharpening device for straight shank twist drill - Google Patents
Intelligent sharpening device for straight shank twist drill Download PDFInfo
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- CN115229569B CN115229569B CN202210909387.7A CN202210909387A CN115229569B CN 115229569 B CN115229569 B CN 115229569B CN 202210909387 A CN202210909387 A CN 202210909387A CN 115229569 B CN115229569 B CN 115229569B
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- fixedly connected
- grinding
- rod
- mounting arm
- grinding disc
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- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000005299 abrasion Methods 0.000 claims abstract description 16
- 239000003921 oil Substances 0.000 claims description 41
- 238000009434 installation Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 15
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- 210000000078 claw Anatomy 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 230000008713 feedback mechanism Effects 0.000 claims description 7
- 238000003754 machining Methods 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
- B24B3/26—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses an intelligent sharpening device for a straight shank twist drill, which belongs to the technical field of bit repair and comprises a base, a clamping mechanism and a grinding mechanism, wherein the clamping mechanism and the grinding mechanism are arranged at the upper end of the base, a grinding disc is arranged in the grinding mechanism, the clamping mechanism is used for clamping a bit, and the grinding mechanism is used for driving the grinding disc to grind the bit and compensating the abrasion part of the grinding disc in real time in the grinding process so as to improve the machining precision.
Description
Technical Field
The invention relates to the technical field of bit repairing, in particular to an intelligent sharpening device for a straight shank twist drill.
Background
At present, the twist drill is a main cutter for machining hole parts in machining, and after the twist drill is used for a certain time, the twist drill needs to be polished by using a grinding wheel due to the abrasion of the cutting edge.
The existing coping process is divided into two modes of manual grinding and automatic grinding, wherein the manual grinding is carried out by an operator to hold a twist drill bit on a grinder while rotating, so that the efficiency is low, meanwhile, the pressure is not uniformly applied manually, and the cutting edge of the twist drill bit is a spiral line, so that the grinding is required while rotating, and when the rotating speed of the operator cannot be uniform, the phenomenon of uneven cutting edge grinding can be caused; the coordinate parameters of all components are set up through a computer for automatic feeding, but the grinding disc is worn in the grinding process, so that the coordinate parameters of the grinding disc deviate, the grinding equipment needs to be overhauled at regular time, the coordinate parameters of the grinding disc are redetermined, the grinding error is reduced, meanwhile, the coordinate parameters of the grinding disc cannot be timely reflected and compensated in a regular overhauling mode, and a certain amount of errors caused by the coordinate parameters of the grinding disc always exist in the grinding process.
Based on the above, the invention designs an intelligent sharpening device for a straight shank twist drill, so as to solve the problems.
Disclosure of Invention
The invention aims to provide an intelligent sharpening device for a straight shank twist drill, which is used for solving the problems that the prior sharpening process is divided into manual sharpening and automatic sharpening in the prior art, and the manual sharpening is realized by holding a twist drill by an operator and rotating the twist drill on a grinder while sharpening, so that the efficiency is low; the coordinate parameters of all components are set up through a computer for automatic feeding, but the grinding disc is worn in the grinding process, so that the coordinate parameters of the grinding disc deviate, the grinding equipment needs to be overhauled at regular time, the grinding error is reduced, and meanwhile, the coordinate parameters of the grinding disc cannot be reflected and compensated in real time in a timing overhauling mode, so that the problem of a certain amount of errors caused by the coordinate parameters of the grinding disc always exists in the grinding process.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an intelligent sharpening device for straight shank twist drill, includes base, fixture and grinding mechanism set up in the base upper end, be provided with the mill in the grinding mechanism, fixture is used for the centre gripping drill bit, grinding mechanism is used for driving the mill and polishes the drill bit and carries out real-time compensation to mill wearing and tearing part at the in-process of polishing.
As a further scheme of the invention, the clamping mechanism comprises a feeding motor, an output shaft of the feeding motor is fixedly connected with a sliding plate, the sliding plate is transversely and slidably connected with the base, the upper end of the sliding plate is fixedly connected with a first driving motor, an output shaft of the first driving motor is fixedly connected with a claw disc, and the claw disc clamps the twist drill.
As a further scheme of the invention, the grinding mechanism comprises a mounting rail, the mounting rail is transversely and slidably connected with a base, a rail is arranged on the side wall of the mounting rail, the upper end of the base is rotatably connected with a first rotating shaft, the first rotating shaft is rotatably connected with a first mounting arm and a second mounting arm, the first mounting arm and the second mounting arm are arranged in a crossing way by taking the first rotating shaft as an intersection point, the first mounting arm and the second mounting arm are both rotatably and slidably connected with the rail, the grinding disc is arranged at the upper end of the first mounting arm, and the upper end of the second mounting arm is provided with a calibration mechanism; the calibrating mechanism is used for judging the abrasion loss of the grinding disc, transversely moving the grinding disc relative to the first mounting arm and compensating the abrasion part of the grinding disc in real time.
As a further scheme of the invention, the upper end of the first mounting arm is provided with a mounting shell, the mounting shell is connected with a second driving motor in a sliding manner along the direction of the first mounting arm, an output shaft of the second driving motor is fixedly connected with a grinding disc, the output shaft of the second driving motor is fixedly connected with a first gear, a reciprocating screw rod is arranged at the side of the second driving motor, a connecting plate is connected onto the reciprocating screw rod in a sliding manner, the connecting plate is fixedly connected with the side wall of the second driving motor, a second gear is connected onto the side wall of the connecting plate in a rotating manner, the second gear is meshed with the first gear, and the axis of the second gear is in threaded connection with the reciprocating screw rod.
As a further scheme of the invention, the calibrating mechanism comprises a first fixing plate, the lower end of the first fixing plate is fixedly connected with a second mounting arm, the upper end of the first fixing plate is slidably connected with a protective shell along the tangential direction of the second mounting arm, the protective shell is rotatably connected with a rotating shaft, the rotating shaft is rotatably connected with a bearing, the outer wall of the protective shell is fixedly connected with a first elastic telescopic rod, the first elastic telescopic rod is fixedly connected with a first connecting plate, the lower end of the first connecting plate is fixedly connected with the first fixing plate, the outer wall of the protective shell is fixedly connected with a first trigger rod, the first trigger rod penetrates through the first connecting plate and is slidably connected with the first connecting plate, and the first trigger rod is connected with a feedback mechanism for driving the grinding disc to calibrate.
As a further scheme of the invention, the feedback mechanism comprises a first feedback rod and a second feedback rod, the end parts of the first feedback rod and the second feedback rod are connected with a second rotating shaft in a common rotating way, the lower end of the second rotating shaft is fixedly connected with a sliding block, the upper end of the mounting rail is fixedly connected with a sliding rail, the sliding block is in sliding connection with the sliding rail, and the projection of the axis of the twist drill, the axis of the first rotating shaft and the track line of the sliding rail on the base are collinear; the side wall of the first feedback rod is in sliding connection with the end part of the first trigger rod, and the side wall of the second feedback rod is in sliding connection with the second trigger rod;
the lower end of the mounting shell is slidably connected with a second fixing plate along the vertical direction of the first mounting arm, the lower end of the second fixing plate is fixedly connected with the first mounting arm, the second fixing plate is fixedly connected with a U-shaped oil pipe, the inner wall of the upper section of the U-shaped oil pipe is slidably connected with an oil tank, the oil tank is fixedly connected with the mounting shell, one end of the oil tank in the U-shaped oil pipe is provided with a one-way valve, and hydraulic oil in the oil tank can only go out and not go in through the one-way valve; the side wall of the oil tank penetrates through and is connected with a sealing plate in a sliding manner, the sealing plate is fixedly connected with a second elastic telescopic rod, the second elastic telescopic rod is fixedly connected with a fixing plate, and the fixing plate is fixedly connected with the installation shell; the inner wall of the lower section of the U-shaped oil pipe is connected with a piston in a sliding manner, and the piston is fixedly connected with a second trigger rod.
As a further aspect of the invention, the turntable is made of a hard wear resistant material.
As a further scheme of the invention, the bearing consists of a plurality of independent turntables, and the turntables are rotationally connected to the rotating shaft in an array distribution along the rotating shaft.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the grinding disc abrasion part is compensated in real time in the process of grinding the drill bit by the grinding disc, so that the grinding disc can process the drill bit with higher processing precision all the time, and meanwhile, the correction procedure of the grinding disc before and after processing is avoided, thereby improving the working efficiency, reducing the working intensity and avoiding the processing error caused by mismeasurement of personnel.
2. Through the contained angle between adjustment first installation arm and the second installation arm, the contained angle of the relative fluted drill's of change adjustment first installation arm and second installation arm, further, the angle of change mill grinding fluted drill bit part makes the feed piece of whole course of working become the fluted drill of quality littleer, and the feed stability in the further course of working has been improved to easier control, has improved the machining precision.
3. The rotary tables in the bearing reduce friction force with the twist drill bit through rotation, further because the rotary tables are mutually independent, damage stress of the bearing due to different linear speeds of the drill bit is reduced, the bearing is further protected, and the service life of the bearing is prolonged.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic top view of the general structure of the present invention;
FIG. 3 is a schematic side view of the general structure of the present invention;
FIG. 4 is a schematic view of the structure of the present invention with the abrasive disc and bearing removed and related components;
FIG. 5 is an enlarged schematic view of FIG. 4 at A;
FIG. 6 is an enlarged schematic view of FIG. 4 at B;
FIG. 7 is a schematic diagram of a calibration mechanism with the feedback mechanism removed;
FIG. 8 is a schematic side sectional view of FIG. 7;
FIG. 9 is a schematic view of the top-down configuration of FIG. 7;
FIG. 10 is a schematic view of an arrangement on a second mounting arm;
FIG. 11 is a schematic bottom view of FIG. 10;
FIG. 12 is a schematic view of the top-down configuration of FIG. 10;
FIG. 13 is an enlarged schematic view of FIG. 12 at C;
fig. 14 is a schematic side sectional view of fig. 10.
In the drawings, the list of components represented by the various numbers is as follows:
the grinding disc type rotary drill comprises a base 1, a grinding disc 2, a feeding motor 3-1, a sliding plate 3-2, a first driving motor 3-3, a claw disc 3-4, a twist drill 3-5, a mounting rail 4-1, a track 4-1-1, a first rotating shaft 4-2, a first mounting arm 4-3, a second mounting arm 4-4, a mounting shell 5-1, a second driving motor 5-2, a first gear 5-3, a reciprocating screw 5-4, a connecting plate 5-5, a second gear 5-6, a first fixed plate 6-1, a protective shell 6-2, a rotating shaft 6-3, a bearing 6-4, a rotating disc 6-4-1, a first elastic telescopic rod 6-5, a first connecting plate 6-6, a first trigger rod 6-7, a first feedback rod 7-1, a second feedback rod 7-2, a second rotating shaft 7-3, a sliding block 7-4, a sliding rail 7-5, a second trigger rod 7-6, a second fixed plate 7-7, a U-shaped oil pipe 7-8, an oil tank 7-9, a one-way valve 7-10, a second elastic telescopic rod 7-11, a second elastic telescopic rod 7-12 and a sealing plate 13-13.
Detailed Description
Referring to fig. 1-14, the present invention provides a technical solution: the intelligent sharpening device for the straight shank twist drill comprises a base 1, a clamping mechanism and a grinding mechanism, wherein the clamping mechanism and the grinding mechanism are arranged at the upper end of the base 1, a grinding disc 2 is arranged in the grinding mechanism, the clamping mechanism is used for clamping a drill bit, and the grinding mechanism is used for driving the grinding disc 2 to grind the drill bit and compensating the abrasion part of the grinding disc 2 in real time in the grinding process;
according to the invention, the worn part of the grinding disc 2 is compensated in real time in the process of grinding the drill bit by the grinding disc 2, so that the grinding disc 2 can always process the drill bit with higher processing precision, and meanwhile, the correction procedure of the grinding disc 2 before and after processing is avoided, thereby improving the working efficiency, reducing the working strength and avoiding the processing error caused by mismeasurement of personnel.
As a further scheme of the invention, the clamping mechanism comprises a feeding motor 3-1, an output shaft of the feeding motor 3-1 is fixedly connected with a sliding plate 3-2, the sliding plate 3-2 is transversely and slidably connected with the base 1, the upper end of the sliding plate 3-2 is fixedly connected with a first driving motor 3-3, an output shaft of the first driving motor 3-3 is fixedly connected with a claw disc 3-4, and the claw disc 3-4 clamps a twist drill 3-5.
As a further scheme of the invention, the grinding mechanism comprises a mounting rail 4-1, the mounting rail 4-1 is transversely and slidably connected with a base 1, a rail 4-1-1 is arranged on the side wall of the mounting rail 4-1, a first rotating shaft 4-2 is rotatably connected to the upper end of the base 1, a first mounting arm 4-3 and a second mounting arm 4-4 are rotatably connected to the first rotating shaft 4-2, the first mounting arm 4-3 and the second mounting arm 4-4 are arranged in a crossing way by taking the first rotating shaft 4-2 as an intersection point, the first mounting arm 4-3 and the second mounting arm 4-4 are rotatably and slidably connected with the rail 4-1-1, a grinding disc 2 is arranged at the upper end of the first mounting arm 4-3, and a calibration mechanism is arranged at the upper end of the second mounting arm 4-4; the calibrating mechanism is used for judging the abrasion loss of the grinding disc 2, transversely moving the grinding disc 2 relative to the first mounting arm 4-3 and compensating the abrasion part of the grinding disc 2 in real time;
the included angle between the first mounting arm 4-3 and the second mounting arm 4-4 is adjusted, the included angle between the axes of the first mounting arm 4-3 and the second mounting arm 4-4 relative to the twist drill 3-5 is changed, and further, the angle of the drill bit part of the twist drill 3-5 ground by the grinding disc 2 is changed, so that the feeding piece in the whole machining process is changed into the twist drill 3-5 with smaller quality and easier control, the feeding stability in the machining process is further improved, and the machining precision is improved.
As a further scheme of the invention, the upper end of the first mounting arm 4-3 is provided with a mounting shell 5-1, the mounting shell 5-1 is connected with a second driving motor 5-2 in a sliding manner along the direction of the first mounting arm 4-3, an output shaft of the second driving motor 5-2 is fixedly connected with a millstone 2, the output shaft of the second driving motor 5-2 is fixedly connected with a first gear 5-3, a reciprocating screw rod 5-4 is arranged on the side of the second driving motor 5-2, a connecting plate 5-5 is connected on the reciprocating screw rod 5-4 in a sliding manner, the connecting plate 5-5 is fixedly connected with the side wall of the second driving motor 5-2, a second gear 5-6 is rotationally connected with the side wall of the connecting plate 5-5, the second gear 5-6 is meshed with the first gear 5-3, and the axis of the second gear 5-6 is in threaded connection with the reciprocating screw rod 5-4;
the rotating speed of the grinding disc 2 is utilized to control the reciprocating speed of the grinding disc 2, so that the phenomenon that the rotating speed of the grinding disc 2 is not matched with the reciprocating speed of the grinding disc 2, the reciprocating speed of the grinding disc 2 is too high, the grinding disc 2 is crushed, and the stability of the equipment in the use process is improved.
As a further scheme of the invention, the calibrating mechanism comprises a first fixing plate 6-1, the lower end of the first fixing plate 6-1 is fixedly connected with a second mounting arm 4-4, the upper end of the first fixing plate 6-1 is slidably connected with a protective shell 6-2 along the tangential direction of the second mounting arm 4-4, a rotating shaft 6-3 is rotatably connected with the protective shell 6-2, the rotating shaft 6-3 is rotatably connected with a bearing 6-4, the outer wall of the protective shell 6-2 is fixedly connected with a first elastic telescopic rod 6-5, the first elastic telescopic rod 6-5 is fixedly connected with a first connecting plate 6-6, the lower end of the first connecting plate 6-6 is fixedly connected with the first fixing plate 6-1, the outer wall of the protective shell 6-2 is fixedly connected with a first triggering rod 6-7, the first triggering rod 6-7 penetrates through the first connecting plate 6-6 and is slidably connected with the first connecting plate 6-6, and the first triggering rod 6-7 is connected with a feedback mechanism for driving the grinding disc 2 to calibrate;
the abrasion loss of the grinding disc 2 is judged by utilizing the symmetry between the rotating shaft 6-3 and the grinding disc 2, so that the grinding disc 2 can correct the position of the grinding disc according to the abrasion loss in real time, the instantaneity is higher, and further, the grinding precision of a drill bit is higher.
As a further scheme of the invention, the feedback mechanism comprises a first feedback rod 7-1 and a second feedback rod 7-2, wherein the end parts of the first feedback rod 7-1 and the second feedback rod 7-2 are connected with a second rotating shaft 7-3 in a common rotating way, the lower end of the second rotating shaft 7-3 is fixedly connected with a sliding block 7-4, the upper end of the mounting rail 4-1 is fixedly connected with a sliding rail 7-5, the sliding block 7-4 is in sliding connection with the sliding rail 7-5, and the projection of the axis of the twist drill 3-5, the axis of the first rotating shaft 4-2 and the track line of the sliding rail 7-5 on the base 1 are collinear; the side wall of the first feedback rod 7-1 is in sliding connection with the end part of the first trigger rod 6-7, and the side wall of the second feedback rod 7-2 is in sliding connection with the second trigger rod 7-6;
the lower end of the installation shell 5-1 is slidably connected with a second fixing plate 7-7 along the vertical direction of the first installation arm 4-3, the lower end of the second fixing plate 7-7 is fixedly connected with the first installation arm 4-3, the second fixing plate 7-7 is fixedly connected with a U-shaped oil pipe 7-8, the inner wall of the upper section of the U-shaped oil pipe 7-8 is slidably connected with an oil tank 7-9, the oil tank 7-9 is fixedly connected with the installation shell 5-1, one end of the oil tank 7-9 in the U-shaped oil pipe 7-8 is provided with a one-way valve 7-10, and the one-way valve 7-10 ensures that hydraulic oil in the oil tank 7-9 only does not enter; the side wall of the oil tank 7-9 penetrates through and is connected with a sealing plate 7-11 in a sliding manner, the sealing plate 7-11 is fixedly connected with a second elastic telescopic rod 7-12, the second elastic telescopic rod 7-12 is fixedly connected with a fixing plate 7-13, and the fixing plate 7-13 is fixedly connected with the mounting shell 5-1; the inner wall of the lower section of the U-shaped oil pipe 7-8 is connected with a piston 7-14 in a sliding manner, and the piston 7-14 is fixedly connected with a second trigger rod 7-6;
by using the mechanism, a unidirectional movement mechanism is completed together, and simultaneously, the idle stroke value of the unidirectional movement mechanism is reduced to the maximum extent by using the flow of liquid, so that the compensation position accuracy of the equipment fed back to the millstone 2 is higher.
As a further scheme of the invention, the turntable 6-4-1 is made of hard anti-wear materials, plays a role in protecting the bearing 6-4, and prolongs the service life of the bearing 6-4.
As a further scheme of the invention, the bearing 6-4 consists of a plurality of independent turntables 6-4-1, and the turntables 6-4-1 are rotationally connected to the rotating shaft 6-3 in an array distribution along the rotating shaft 6-3;
the rotary discs 6-4-1 in the bearings 6-4 reduce friction force with the twist drill 3-5 drill bit through rotation, further, as the rotary discs 6-4-1 are mutually independent, the damage stress of the bearings 6-4 due to different linear speeds of the drill bit is reduced, the bearings 6-4 are further protected, and the service life of the bearings 6-4 is prolonged.
Working principle: during operation, the twist drill 3-5 is fixed through the claw disc 3-4, then the mounting rail 4-1 is transversely moved, the included angle between the first mounting arm 4-3 and the second mounting arm 4-4 is changed, the angle of the twist drill 3-5 drill bit is further determined (the first feedback rod 7-1 and the second feedback rod 7-2 are respectively connected with the structures on the first mounting arm 4-3 and the second mounting arm 4-4 in a sliding manner by adjusting the included angle between the first mounting arm 4-3 and the second mounting arm 4-4, the included angle between the first mounting arm 4-3 and the second mounting arm 4-4 is changed, the included angle between the first mounting arm 4-3 and the second mounting arm 4-4 relative to the axis of the twist drill 3-5 is adjusted, the angle between the grinding disc 2 and the drill bit 3-5 is further changed, and meanwhile, the sliding position of the first feedback rod 7-1 and the second feedback rod 7-2 relative to the first mounting arm 4-3 and the second mounting arm 4-4 is kept in a parallel state by adjusting the included angle between the first feedback rod 7-1 and the second feedback rod 7-2 and the second mounting arm 4-4 respectively, and the sliding position of the second slide rail 7-5 is changed along the second slide rail;
starting a feed motor 3-1, a first drive motor 3-3 and a second drive motor 5-2, wherein the first drive motor 3-3 drives a claw disc 3-4 to drive a twist drill 3-5 to rotate, so that the grinding disc 2 can uniformly grind the outer diameter of the twist drill 3-5, the feed motor 3-1 controls the twist drill 3-5 to slowly move rightwards, so that the grinding depth of the grinding disc 2 is increased, the second drive motor 5-2 drives the grinding disc 2 to rotate so as to grind the twist drill 3-5, meanwhile, the second drive motor 5-2 drives a first gear 5-3 to rotate, the first gear 5-3 drives a second gear 5-6 to rotate, and the second gear 5-6 is in reciprocating motion along the reciprocating screw 5-4 through threaded connection with the reciprocating screw 5-4 in the rotating process so that the grinding disc 2 grinds the twist drill 3-5 along the oblique angle of a drill bit;
in the process of grinding the twist drill 3-5 by the grinding disc 2, the bearings 6-4 and the grinding disc 2 are symmetrical about the twist drill 3-5, the corresponding bearings 6-4 are tightly attached to the surface of the bit part of the twist drill 3-5 (meanwhile, the rotating discs 6-4-1 in the bearings 6-4 reduce the friction force with the bit of the twist drill 3-5 through rotation, and further, as the rotating discs 6-4-1 are mutually independent, the damage stress of the bearings 6-4 due to different linear speeds of the bit is reduced, the protection effect is further played on the bearings 6-4, and the service life of the bearings 6-4 is prolonged); with the abrasion of the grinding disc 2 during operation, the distance from the edge of the grinding disc 2 to the drill bit is lower than the distance from the bearing 6-4 to the drill bit, and because the grinding disc 2 has a grinding effect on the drill bit, the grinding disc 2 is always clung to the drill bit, further, the drill bit can press the bearing 6-4 to enable the bearing 6-4 to move rightwards, the bearing 6-4 moves rightwards to drive the protective shell 6-2 to move rightwards, the protective shell 6-2 pushes the first trigger rod 6-7 to move rightwards relative to the first connecting plate 6-6, the first trigger rod 6-7 pushes the first feedback rod 7-1 rightwards relative to the second mounting arm 4-4, the second rotating shaft 7-3 is transversely and slidingly connected with the sliding rail 7-5 through the sliding block 7-4, and the inclination angle of the first feedback rod 7-1 is unchanged, the first feedback rod 7-1 drives the second rotating shaft 7-3 to move rightwards, the further second rotating shaft 7-3 drives the second feedback rod 7-2 to move rightwards, (referring to fig. 14) the second feedback rod 7-2 drives the piston 7-14 to move rightwards relative to the U-shaped oil pipe 7-8 through the second trigger rod 7-6, hydraulic oil in a pipeline below the U-shaped oil pipe 7-8 is extruded into an upper pipeline, further, the hydraulic oil pushes the oil tank 7-9 leftwards, the oil tank 7-9 pushes the installation shell 5-1 and the grinding disc 2 in the installation shell 5-1 leftwards integrally, the grinding disc 2 returns to the original point towards the edge position of one side of the twist drill 3-5, so that compensation of the abrasion part of the grinding disc 2 is completed, and the machining precision is improved; after the edge position of the grinding disc 2 returns to the original point, the grinding disc 2 grinds the part of the drill bit which is not ground before due to self abrasion, further, when the redundant part of the drill bit is ground, the bearing 6-4 is reset under the action of the elastic force of the first elastic telescopic rod 6-5, correspondingly, the first feedback rod 7-1 and the second feedback rod 7-2 are reset, the piston 7-14 moves leftwards, hydraulic oil in a pipeline above the U-shaped oil pipe 7-8 is sucked into a lower pipeline, at the moment, under the action of the elastic force of the second elastic telescopic rod 7-12, the sealing plate 7-11 slides into the oil tank 7-9, the hydraulic oil in the oil tank 7-9 is extruded into the U-shaped oil pipe 7-8 through the one-way valve 7-10, the hydraulic oil which needs to be extracted is further supplemented by the leftward movement of the piston 7-14, the oil tank 7-9 is prevented from being driven leftwards by the leftward movement of the piston 7-14 (attention is needed, the hydraulic oil in the oil tank 7-9 is extruded into the U-shaped 7-8 by the elastic force of the second elastic telescopic rod 7-12, the generated thrust force is smaller than the elastic force 5-1 of the whole oil tank 7-9 and the second elastic force which needs to be installed in the oil tank 7-9 is installed, and the elastic force is prevented from being extruded into the elastic shell 7-7 is installed;
finally, when the feeding motor 3-1 controls the twist drill 3-5 to feed enough displacement to finish processing, the feeding motor 3-1 controls the twist drill 3-5 to retract, each driving piece is stopped, and the twist drill 3-5 is taken down.
Claims (5)
1. An intelligent sharpening device for straight shank twist drills is characterized in that: the grinding device comprises a base (1), a clamping mechanism and a grinding mechanism, wherein the clamping mechanism and the grinding mechanism are arranged at the upper end of the base (1), a grinding disc (2) is arranged in the grinding mechanism, the clamping mechanism is used for clamping a drill bit, and the grinding mechanism is used for driving the grinding disc (2) to grind the drill bit and compensating the abrasion part of the grinding disc (2) in real time in the grinding process;
the clamping mechanism comprises a feeding motor (3-1), an output shaft of the feeding motor (3-1) is fixedly connected with a sliding plate (3-2), the sliding plate (3-2) is transversely and slidably connected with a base (1), a first driving motor (3-3) is fixedly connected to the upper end of the sliding plate (3-2), a claw disc (3-4) is fixedly connected to the output shaft of the first driving motor (3-3), and a twist drill (3-5) is clamped by the claw disc (3-4);
the grinding mechanism comprises a mounting rail (4-1), the mounting rail (4-1) is transversely and slidably connected with a base (1), a rail (4-1-1) is arranged on the side wall of the mounting rail (4-1), a first rotating shaft (4-2) is rotatably connected to the upper end of the base (1), a first mounting arm (4-3) and a second mounting arm (4-4) are rotatably connected to the first rotating shaft (4-2), the first mounting arm (4-3) and the second mounting arm (4-4) are arranged in a crossing mode by taking the first rotating shaft (4-2) as an intersection point, the first mounting arm (4-3) and the second mounting arm (4-4) are rotatably and slidably connected with the rail (4-1-1), a grinding disc (2) is arranged at the upper end of the first mounting arm (4-3), and a calibration mechanism is arranged at the upper end of the second mounting arm (4-4); the calibrating mechanism is used for judging the abrasion loss of the grinding disc (2) and transversely moving the grinding disc (2) relative to the first mounting arm (4-3) to compensate the abrasion part of the grinding disc (2) in real time.
2. The intelligent sharpening device for straight shank twist drills of claim 1, wherein: the novel grinding disc grinding device is characterized in that an installation shell (5-1) is arranged at the upper end of the first installation arm (4-3), a second driving motor (5-2) is slidably connected to the installation shell (5-1) along the direction of the first installation arm (4-3), an output shaft of the second driving motor (5-2) is fixedly connected with a grinding disc (2), a first gear (5-3) is fixedly connected to the output shaft of the second driving motor (5-2), a reciprocating screw rod (5-4) is arranged on the side of the second driving motor (5-2), a connecting plate (5-5) is slidably connected to the reciprocating screw rod (5-4), the connecting plate (5-5) is fixedly connected with the side wall of the second driving motor (5-2), a second gear (5-6) is rotatably connected to the side wall of the connecting plate (5-5), the second gear (5-6) is meshed with the first gear (5-3), and the axis of the second gear (5-6) is in threaded connection with the reciprocating screw rod (5-4).
3. The intelligent sharpening device for straight shank twist drills of claim 2, wherein: the calibrating mechanism comprises a first fixing plate (6-1), the lower end of the first fixing plate (6-1) is fixedly connected with a second mounting arm (4-4), the upper end of the first fixing plate (6-1) is fixedly connected with a protective shell (6-2) in a sliding manner along the tangential direction of the second mounting arm (4-4), the protective shell (6-2) is rotationally connected with a rotating shaft (6-3), the rotating shaft (6-3) is rotationally connected with a bearing (6-4), the outer wall of the protective shell (6-2) is fixedly connected with a first elastic telescopic rod (6-5), the lower end of the first elastic telescopic rod (6-5) is fixedly connected with a first connecting plate (6-6), the outer wall of the protective shell (6-2) is fixedly connected with a first triggering rod (6-7), the first triggering rod (6-7) penetrates through the first connecting plate (6-6) and is in sliding connection with the first connecting plate (6-6), and the first triggering rod (6-7) is in feedback connection with a feedback mechanism (2).
4. An intelligent sharpening device for straight shank twist drills according to claim 3, wherein: the feedback mechanism comprises a first feedback rod (7-1) and a second feedback rod (7-2), wherein the end parts of the first feedback rod (7-1) and the second feedback rod (7-2) are connected with a second rotating shaft (7-3) in a common rotating mode, the lower end of the second rotating shaft (7-3) is fixedly connected with a sliding block (7-4), the upper end of the mounting rail (4-1) is fixedly connected with a sliding rail (7-5), the sliding block (7-4) is in sliding connection with the sliding rail (7-5), and the projection of the axis of the twist drill (3-5), the axis of the first rotating shaft (4-2) and the track line of the sliding rail (7-5) on the base (1) are collinear; the side wall of the first feedback rod (7-1) is in sliding connection with the end part of the first trigger rod (6-7), and the side wall of the second feedback rod (7-2) is in sliding connection with the second trigger rod (7-6);
the hydraulic oil pump is characterized in that the lower end of the mounting shell (5-1) is slidably connected with a second fixing plate (7-7) along the vertical direction of the first mounting arm (4-3), the lower end of the second fixing plate (7-7) is fixedly connected with the first mounting arm (4-3), the second fixing plate (7-7) is fixedly connected with a U-shaped oil pipe (7-8), the inner wall of the upper section of the U-shaped oil pipe (7-8) is slidably connected with an oil tank (7-9), the oil tank (7-9) is fixedly connected with the mounting shell (5-1), one end of the oil tank (7-9) in the U-shaped oil pipe (7-8) is provided with a one-way valve (7-10), and the one-way valve (7-10) ensures that hydraulic oil in the oil tank (7-9) only does not enter; the side wall of the oil tank (7-9) penetrates through and is connected with a sealing plate (7-11) in a sliding manner, the sealing plate (7-11) is fixedly connected with a second elastic telescopic rod (7-12), the second elastic telescopic rod (7-12) is fixedly connected with a fixing plate (7-13), and the fixing plate (7-13) is fixedly connected with the mounting shell (5-1); the inner wall of the lower section of the U-shaped oil pipe (7-8) is connected with a piston (7-14) in a sliding manner, and the piston (7-14) is fixedly connected with a second trigger rod (7-6).
5. An intelligent sharpening device for straight shank twist drills according to claim 3, wherein: the bearing (6-4) is composed of a plurality of independent turntables (6-4-1), and the turntables (6-4-1) are rotationally connected to the rotating shaft (6-3) in an array distribution along the rotating shaft (6-3).
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| CN202210909387.7A CN115229569B (en) | 2022-07-29 | 2022-07-29 | Intelligent sharpening device for straight shank twist drill |
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| CN202210909387.7A CN115229569B (en) | 2022-07-29 | 2022-07-29 | Intelligent sharpening device for straight shank twist drill |
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| CN115229569A (en) | 2022-10-25 |
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