CN219094536U - High-precision cutter structure of knife grinder - Google Patents

Abstract

The utility model relates to a knife grinder technical field discloses a knife grinder high accuracy cutter structure, including the protection casing body, be fixed in the motor of the internal bottom surface of protection casing, coaxial drive straight-bar and coaxial setting up in the drive straight-bar keep away from the cutter of polishing of motor tip, the protection casing body rear side wall is equipped with puts the thing and leads to the groove, the internal equipment mechanism that is used for polishing the cutter demountable installation in the drive straight-bar that is provided with of protection casing, the circumference edge that the cutter of polishing is close to the surface of drive straight-bar sets up towards the direction slope of keeping away from the drive straight-bar, the circumference edge of cutter slope of polishing is coaxial to be equipped with the ratchet of round edging. The polishing wheel with the improved knife grinder is in surface contact with a polished product, and the effect of burrs is easy to generate.

Description

High-precision cutter structure of knife grinder

Technical Field

The application relates to the technical field of knife sharpeners, in particular to a high-precision cutter structure of a knife sharpeners.

Background

Industrial cutters are widely applied to workpiece processing equipment with higher precision requirements, such as numerical control machine tools, computer engraving machines, engraving and milling machines, etc., however, the industrial cutters can wear during the long-term use process, and the knife grinder obviously plays a vital role in the manufacture and maintenance of the cutters.

Aiming at the related technology, the inventor considers that the grinding wheel of the existing knife grinder is used for grinding the whole product to be ground through the grinding wheel, at the moment, the grinding wheel and the product to be ground are in a surface contact mode, the surface of the product to be ground is rubbed through the grinding surface of the grinding wheel, and burrs are easy to generate.

Disclosure of Invention

In order to improve the problem that burrs are easy to generate because the grinding wheel of the knife grinder is in surface contact with the grinding product, the application provides a knife grinder high-precision cutter structure.

The application provides a knife grinder high accuracy cutter structure adopts following technical scheme:

the utility model provides a knife grinder high accuracy cutter structure, includes the protection casing body, is fixed in motor, the coaxial setting of the internal bottom surface of protection casing are fixed in the drive straight-bar of motor output shaft and coaxial set up in the drive straight-bar is kept away from the cutter of polishing of motor tip, the lateral wall is equipped with puts the thing and leads to the groove behind the protection casing body, be provided with in the protection casing and be used for making the cutter demountable installation in the equipment mechanism of drive straight-bar, the cutter of polishing is close to the circumference edge orientation of the surface of drive straight-bar is kept away from the direction slope setting of drive straight-bar, the circumference edge of cutter slope is coaxial to be equipped with the ratchet of round edging.

By adopting the technical scheme, the motor is electrified and started, and a worker or an external driving mechanism drives the product to be ground to move along the length direction of the cover plate until the product to be ground contacts with the grinding cutter; the ratchet of the grinding cutter is in line contact with the product to be ground through the ratchet of the grinding cutter, so that the ratchet of the grinding cutter continuously cuts chips on the product to be ground, and the generation of burrs on the surface of the product to be ground is reduced.

Optionally, the assembling mechanism includes a plurality of arc protruding blocks fixed at the end part of the driving straight rod far away from the motor, the surface of the polishing tool close to the driving straight rod is provided with a plurality of arc through grooves, and the arc protruding blocks can be inserted into the polishing tool through the arc through grooves; the surface of the polishing cutter, which is away from the driving straight rod, is coaxially provided with a countersunk through hole, and the end part of the driving straight rod, which is away from the motor, is coaxially provided with a threaded round hole.

Through adopting above-mentioned technical scheme, the long-term process of using of cutter of polishing can produce wearing and tearing, or irregular operation leads to cutter's cutting edge to collide with the damage, then inspect and change cutter of polishing from time to time when required, can realize cutter's of polishing demountable installation through equipment mechanism.

Optionally, be provided with in the protection casing and be used for reducing the sweeps through put thing logical groove departure protection mechanism of the protection casing, protection mechanism including slide set up in the apron of the internal rear side wall of protection casing, the apron is close to the surface of polishing cutter has seted up and has polished logical groove, polish logical groove with put the thing logical groove and be linked together, protection casing rear side wall is provided with and is used for apron direction slide rail mechanism.

Through adopting above-mentioned technical scheme, the apron carries out synchronous slip along with waiting to grind the product, and the apron can avoid the sweeps of cutting to try to avoid putting the thing to lead to the groove to splash out the protection casing body outside, reduces the external factor influence to operating personnel or the work of the actuating mechanism of off-the-shelf to the work precision problem of waiting to grind the product has been improved.

Optionally, the lateral wall is equipped with the slide rail through groove along self length direction behind the protection casing body, slide rail mechanism is including being fixed in perpendicularly the apron deviates from the slide rail straight-bar of the lateral wall of milling cutter, the slide rail straight-bar passes through the slide rail through groove wears out the protection casing body, slide rail mechanism is still including being fixed in the slide rail straight-bar is kept away from support ring, rotation install in the rotation straight-bar that supports the ring inboard and coaxial being fixed in the rotation round roller at rotation straight-bar both ends, the vertical setting of axis of rotation straight-bar.

By adopting the technical scheme, the sliding rail mechanism of the cover plate is arranged at the position of the cover plate, which is away from the rear side surface of the polishing cutter, so that the influence of scraps on the sliding rail mechanism is avoided as much as possible; the sliding capacity of the cover plate can be improved by arranging the rotary round roller.

Optionally, the internal restriction mechanism that is used for restricting the product extension that waits to grind that is provided with of protection casing, restriction mechanism including rotate install in the internal screw thread straight-bar of protection casing, threaded connection in the butt lug of screw thread straight-bar week side and coaxial being fixed in the butterfly nut of screw thread straight-bar tip, butt lug is located between the cutter of polishing and the motor.

Through adopting above-mentioned technical scheme, the staff at first twists butterfly nut and drives the rotation of screw thread straight-bar, and screw thread straight-bar drives to support and presses the lug and move to suitable position along protection casing body width direction to this is through supporting the cutting length that presses the lug to control the product that waits to grind, then stretches into the protection casing body inboard with waiting to grind the product through polishing logical groove, until waiting to grind the product butt in supporting the lug lateral wall, avoids waiting to grind product to stretch into protection casing body inboard length overlength and makes the cutter that polishes appear bumping the sword phenomenon because of cutting excessively as far as possible.

Optionally, the internal portion of protection casing is provided with and is used for cleaing away the cutter of polishing with prop the mechanism of blowing of pressing the sweeps on lug surface, the mechanism of blowing includes two wears to locate the internal bottom surface of protection casing jet-propelled pipe, one jet-propelled pipe's the port orientation of blowing prop the lug and be close to the lateral wall of apron, another jet-propelled pipe's the port orientation of blowing the circumference edge that cutter slope is pressed, two jet-propelled pipe all is connected with the air pump in the sharpedge grinding machine.

Through adopting above-mentioned technical scheme, after the cutting work of sharpedge grinding machine is finished, two jet-propelled pipes clear up the sweeps that support the surface of pressing lug and grinding cutter respectively to improve the machining precision of waiting to grind the product.

Optionally, the protection casing body bottom surface is provided with the collection mechanism that is used for the sweeps to collect, collect the mechanism including be fixed in the collection box of protection casing body bottom surface, be fixed in collect the mediation pipe of box bottom surface with bind in through the ribbon the collection bag of mediation pipe week side, the protection casing body with the mediation pipe all with collect the box and be linked together.

Through adopting above-mentioned technical scheme, the sweeps fall into the collection bag inside through collecting box and mediation pipe to the centralized processing of sweeps is convenient for.

Optionally, the ratchet is made of tungsten steel material.

By adopting the technical scheme, the tungsten steel is very wear-resistant due to the characteristic of high hardness, and the problems of scratch, deformation and the like are not easy to generate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the motor is electrified and started, and a worker or an external driving mechanism drives the product to be ground to move along the length direction of the cover plate until the product to be ground and the grinding cutter are in contact with each other; the grinding cutter is in line contact with the product to be ground through the ratchet with the self-sharpening edge, so that the ratchet of the grinding cutter continuously cuts chips on the product to be ground, and the generation of burrs on the surface of the product to be ground is reduced;

2. the method comprises the steps that a worker firstly screws a butterfly nut to drive a threaded straight rod to rotate, the threaded straight rod drives a pressing protruding block to move to a proper position along the width direction of a protective cover body, so that the cutting length of a product to be ground is controlled through the pressing protruding block, then the product to be ground stretches into the inner side of the protective cover body through a grinding through groove until the product to be ground is abutted against the side wall of the pressing protruding block, and the phenomenon that a grinding cutter is in collision due to over-cutting due to the fact that the length of the product to be ground stretching into the inner side of the protective cover body is excessively long is avoided as much as possible;

3. the apron is followed and is waited to grind the product and carries out synchronous slip, and the sweeps of cutting can be avoided as far as possible to put the thing and lead to the groove to splash out the protection casing body outside, reduce the external factor influence to operating personnel or the work of the external actuating mechanism of machine to the work precision problem of waiting to grind the product has been improved.

Drawings

Fig. 1 is a schematic structural view of a high precision tool structure of a knife grinder.

Fig. 2 is a schematic view of the structure of the inside of the shield body.

Fig. 3 is an exploded view of the sanding tool and the driving straight bar.

Fig. 4 is an exploded view of the interior of the enclosure.

Fig. 5 is an exploded view of the cover plate and the rotating roller.

Reference numerals: 11. a protective cover body; 12. a motor; 13. driving a straight rod; 14. arc convex blocks; 15. polishing a cutter; 16. circular arc through grooves; 17. a countersunk through hole; 18. a threaded round hole; 19. a ratchet; 20. a limit bump; 21. a threaded straight rod; 22. pressing the protruding block; 23. a threaded through hole; 24. a butterfly nut; 25. the slide rail is communicated with the groove; 26. placing articles into the through groove; 27. a cover plate; 28. polishing the through groove; 29. a slide rail straight rod; 30. a support ring; 31. rotating the straight rod; 32. rotating the round roller; 33. a jet pipe; 34. a collection box; 35. dredging the catheter; 36. and (5) collecting bags.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a knife grinder high-precision cutter structure. Referring to fig. 1-3, the high-precision cutter structure of the knife grinder comprises a protective cover body 11, wherein a motor 12 is fixed on the inner bottom surface of the protective cover body 11, a driving straight rod 13 is coaxially fixed on the output shaft of the motor 12, and an arc lug 14 is fixedly arranged at the end part of the driving straight rod 13 far away from the motor 12. The arc-shaped protruding blocks 14 are arranged at equal intervals in the axial direction by taking the axis of the driving straight rod 13 as the axis, and the arc-shaped protruding blocks 14 are protruding block structures with arc-shaped sections.

Referring to fig. 2 and 3, a polishing tool 15 is coaxially disposed at an end of the driving straight rod 13 far from the motor 12, circular arc through grooves 16 are formed on a surface of the polishing tool 15 close to the driving straight rod 13, the circular arc through grooves 16 are axially equidistant by taking an axis of the polishing tool 15 as an axis, the circular arc through grooves 16 are of a through groove structure with a circular arc-shaped longitudinal section, and the circular arc protruding blocks 14 can be inserted into the polishing tool 15 through the circular arc through grooves 16. The end part of the driving straight rod 13 far away from the motor 12 is coaxially provided with a threaded round hole 18, the surface of the polishing cutter 15 far away from the driving straight rod 13 is coaxially provided with a countersunk through hole 17, and a bolt can pass through the countersunk through hole 17 and is in threaded connection with the driving straight rod 13 through the threaded round hole 18, so that the polishing cutter 15 can be detachably arranged at the end part of the driving straight rod 13 far away from the motor 12. The circumferential edge of the surface of the polishing cutter 15, which is close to the driving straight rod 13, is obliquely arranged in a direction away from the driving straight rod 13, and a circle of sharp ratchets 19 are coaxially arranged on the circumferential edge of the obliquely arranged polishing cutter 15, and the sharp ratchets 19 are made of tungsten steel materials.

Referring to fig. 2 and 4, the inner bottom surface of the protective cover 11 is fixed with two limiting protrusions 20, two limiting protrusions 20 are arranged along the width direction of the protective cover 11, and the two limiting protrusions 20 are oppositely arranged and are located between the polishing cutter 15 and the motor 12. Threaded straight rods 21 are arranged between the side walls of the two limiting protruding blocks 20, and the threaded straight rods 21 are rotatably arranged on the limiting protruding blocks 20 through bearings. The inner bottom surface of the protective cover body 11 is slidably provided with a pressing lug 22, the pressing lug 22 is provided with a threaded through hole 23 along the length direction of the threaded straight rod 21, and the pressing lug 22 is connected to the periphery of the threaded straight rod 21 through the threaded through hole 23 in a threaded manner. The end part of the threaded straight rod 21, which is far away from the rear side surface of the protective cover body 11, penetrates out of the limit bump 20 and is coaxially fixed with a butterfly nut 24.

Referring to fig. 4 and 5, a sliding rail through groove 25 and a storage through groove 26 are formed in the rear side wall of the inner side of the protective cover body 11, the sliding rail through groove 25 and the storage through groove 26 are all arranged along the length direction of the protective cover body 11, and the sliding rail through groove 25 is located above the storage through groove 26. The rear side wall of the inner side of the protective cover body 11 is provided with a cover plate 27 in a sliding manner along the length direction of the cover plate, the surface of the cover plate 27, which is close to the polishing cutter 15, is provided with a polishing through groove 28, and the polishing through groove 28 is communicated with the object placing through groove 26. The side wall of the cover plate 27, which is away from the polishing tool 15, is vertically fixed with a sliding rail straight rod 29, and the sliding rail straight rod 29 penetrates out of the protective cover body 11 through the sliding rail through groove 25 and is fixed with a supporting circular ring 30, and the axis of the supporting circular ring 30 is vertically arranged. The inner side of the supporting circular ring 30 is vertically penetrated with a rotary straight rod 31, and a bearing is arranged between the outer peripheral surface of the rotary straight rod 31 and the inner peripheral surface of the supporting circular ring 30, so that the rotary straight rod 31 is rotatably arranged at the inner side of the supporting circular ring 30 through the bearing. Both ends of the rotary straight rod 31 are coaxially fixed with rotary round rollers 32.

Referring to fig. 1 and 4, two air injection pipes 33 are arranged on the inner bottom surface of the protective cover body 11 in a penetrating way, and the two air injection pipes 33 are connected with an air pump in the knife grinder. One of the air-blowing ports of the air-blowing duct 33 faces the side wall of the pressing projection 22 near the cover plate 27, and the other air-blowing port of the air-blowing duct 33 faces the inclined circumferential edge position of the grinding tool 15. The bottom surface of the protective cover body 11 is far away from the cover plate 27, and a collecting box 34 is fixed, and the collecting box 34 is communicated with the combined part of the protective cover body 11. The bottom surface of the collecting box 34 is fixedly provided with a dredging conduit 35, the inner side of the dredging conduit 35 is communicated with the inner side of the collecting box 34, and the periphery of the dredging conduit 35 far away from the collecting box 34 is bound with a collecting bag 36 through a binding belt.

The implementation principle of the high-precision cutter structure of the knife grinder in the embodiment of the application is as follows: the staff first screws the butterfly nut 24 to drive the threaded straight rod 21 to rotate, and the threaded straight rod 21 drives the pressing convex block 22 to move to a proper position along the width direction of the protective cover body 11, so that the cutting length of a product to be ground is controlled by the pressing convex block 22; then the product to be ground is extended into the inner side of the protective cover body 11 through the grinding through groove 28 until the product to be ground is abutted against the side wall of the abutting convex block 22, so that the phenomenon that the grinding cutter 15 is in cutter collision due to over-cutting due to the fact that the length of the product to be ground extending into the inner side of the protective cover body 11 is too long is avoided as much as possible.

The motor 12 is electrified and started, and a worker or an external driving mechanism drives the product to be ground to move along the length direction of the cover plate 27 until the product to be ground contacts with the grinding cutter 15; the grinding cutter 15 is in line contact with the product to be ground through the self-sharpening ratchet 19, so that the product to be ground is continuously chipped by the ratchet 19 of the grinding cutter 15, and burrs on the surface of the product to be ground are reduced. The cover plate 27 slides synchronously along with the product to be ground by rotating the round roller 32, so that the cover plate 27 can avoid cutting scraps from splashing outside the protective cover body 11 through the storage through groove 26 as much as possible, and the influence on the operation of an operator or an off-machine driving mechanism is reduced. After the cutting operation of the knife grinder is finished, the two air injection guide pipes 33 respectively clean the waste scraps on the surfaces of the pressing convex blocks 22 and the grinding cutter 15, and finally the waste scraps fall into the collecting bag 36 through the collecting box 34 and the dredging guide pipe 35 so as to facilitate centralized treatment of the waste scraps.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a knife grinder high accuracy cutter structure, includes protection casing body (11), is fixed in motor (12) of bottom surface in protection casing body (11), coaxial being fixed in drive straight-bar (13) and the coaxial setting of motor (12) output shaft in drive straight-bar (13) keep away from cutter (15) of polishing of motor (12) tip, protection casing body (11) rear side wall is equipped with puts thing logical groove (26), be provided with in protection casing body (11) and be used for making cutter (15) demountable installation in the equipment mechanism of drive straight-bar (13), its characterized in that: the polishing tool (15) is obliquely arranged in the direction of being far away from the driving straight rod (13) towards the circumferential edge of the surface, which is close to the driving straight rod (13), of the polishing tool (15), and a circle of sharp ratchets (19) are coaxially arranged on the oblique circumferential edge of the polishing tool (15).

2. The high-precision cutter structure of the knife grinder, as claimed in claim 1, is characterized in that: the assembly mechanism comprises a plurality of arc convex blocks (14) which are fixed at the end part of the driving straight rod (13) far away from the motor (12), a plurality of arc through grooves (16) are formed in the surface of the polishing cutter (15) close to the driving straight rod (13), and the arc convex blocks (14) can be inserted into the polishing cutter (15) through the arc through grooves (16); the surface of the polishing cutter (15) deviating from the driving straight rod (13) is coaxially provided with a countersunk through hole (17), and the end part of the driving straight rod (13) far away from the motor (12) is coaxially provided with a threaded round hole (18).

3. The high-precision cutter structure of the knife grinder, as claimed in claim 1, is characterized in that: be provided with in the protection casing body (11) and be used for reducing the sweeps and pass through put thing logical groove (26) departure protection mechanism of the protection casing body (11), protection mechanism including slide set up in apron (27) of the inside back lateral wall of the protection casing body (11), apron (27) are close to the surface of polishing cutter (15) has seted up and has polished logical groove (28), polish logical groove (28) with put thing logical groove (26) and be linked together, the back lateral wall of the protection casing body (11) is provided with and is used for slide rail mechanism of apron (27) direction.

4. A knife sharpener high precision knife structure according to claim 3, characterized in that: the utility model discloses a polishing tool, including protection casing body (11), slide rail mechanism, apron (27) are fixed in including perpendicular slide rail straight-bar (29) of apron (27) deviating from the lateral wall of polishing tool (15), slide rail straight-bar (29) are passed through slide rail through-groove (25) wears out protection casing body (11), slide rail mechanism is still including being fixed in slide rail straight-bar (29) are kept away from support ring (30) of the tip of apron (27), rotate install in support ring (30) inboard rotatory straight-bar (31) and coaxial be fixed in rotatory roller (32) at rotatory straight-bar (31) both ends, the vertical setting of axis of rotation of rotatory straight-bar (31).

5. A knife sharpener high precision knife structure according to claim 3, characterized in that: the utility model discloses a polishing tool, including protecting cover body (11), including the protection cover body (11), be provided with the restriction mechanism that is used for restricting the product extension length of waiting to grind inside, restriction mechanism including rotate install in screw thread straight-bar (21) in the protection cover body (11), threaded connection in support and press lug (22) and the coaxial butterfly nut (24) that are fixed in screw thread straight-bar (21) tip of screw thread straight-bar (21) in screw thread straight-bar (21) week side, support and press lug (22) to be located between polishing tool (15) and motor (12).

6. The high-precision cutter structure of the knife grinder, as claimed in claim 5, wherein: the utility model discloses a knife grinder, including protection casing body (11), protection casing body (11) are inside to be provided with be used for cleaing away grinding cutter (15) with prop the mechanism of blowing of pressing sweeps on lug (22) surface, the mechanism of blowing includes two wear to locate jet duct (33) of protection casing body (11) inner bottom surface, one jet duct (33) blow port orientation prop the lug (22) and be close to the lateral wall of apron (27), another jet duct (33) blow port orientation grinding cutter (15) inclined circumference edge, two jet duct (33) are all connected with the air pump in the knife grinder.

7. The high-precision cutter structure of the knife grinder, as claimed in claim 1, is characterized in that: the garbage collection device comprises a protection cover body (11), and is characterized in that a collection mechanism for collecting scraps is arranged on the bottom surface of the protection cover body (11), the collection mechanism comprises a collection box (34) fixed on the bottom surface of the protection cover body (11), a dredging guide pipe (35) fixed on the bottom surface of the collection box (34) and a collection bag (36) bound on the periphery of the dredging guide pipe (35) through a binding belt, and the protection cover body (11) and the dredging guide pipe (35) are communicated with the collection box (34).

8. The high-precision cutter structure of the knife grinder, as claimed in claim 1, is characterized in that: the ratchet (19) is made of tungsten steel material.

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