CN214445089U

CN214445089U - Knife sharpener for grinding tool for machining gauge needle

Info

Publication number: CN214445089U
Application number: CN202120697195.5U
Authority: CN
Inventors: 陈新华
Original assignee: Zhongshan Juhe Precision Machinery Co ltd
Current assignee: Zhongshan Juhe Precision Machinery Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-10-22
Anticipated expiration: 2031-04-06

Abstract

The utility model aims to provide a knife sharpener for grinding a cutter for processing a pointer, which comprises a machine table and a knife sharpening disc component arranged on the machine table, wherein the knife sharpening disc component comprises a knife sharpening disc and a knife sharpening disc driving piece for driving the knife sharpening disc to rotate; the machine table is provided with a repairing device for repairing the disc surface of the grinding disc; the repairing device comprises a support and a cutting tool for cutting the disc surface of the grinding disc, the support is installed on the machine table, the cutting tool is installed on the support, and the position of the cutting tool can be adjusted by the support so that the cutting tool can be in contact with or can be moved away from the disc surface of the grinding disc. The utility model discloses be provided with prosthetic devices, mill the whetstone dish through the cutting means on the prosthetic devices and polish in order to resume the whetstone line on the whetstone dish, need not dismouting, transportation whetstone dish, reduce the impaired condition in whetstone dish shaft hole.

Description

Knife sharpener for grinding tool for machining gauge needle

Technical Field

The utility model relates to a sharpedge grinding machine of cutter that grinding is used for processing table needle.

Background

The processing tool for processing fine parts such as clock hands and the like is used for polishing by adopting a knife sharpener provided with a special sharpening disc after processing, the special sharpening disc is provided with a plurality of grooves, and diamond powder is scattered in the grooves and has the function of sharpening the knife. When the knife sharpener is used, the corresponding machining tool is sharpened through the rotating sharpening disc. After the sharpening disc is used for a period of time, the grooves on the sharpening disc become shallow or even disappear, so that diamond powder is seriously lost, the sharpening disc cannot be accurately sharpened any more, and the sharpening disc fails. The sharpening disk needs to be repaired or replaced.

In the prior art, the failed grinding cutter disc is detached and then sent to a manufacturer capable of repairing the grinding cutter disc for repair, and the grinding cutter disc is sent back after the manufacturer finishes repair and then is installed on a grinding machine again for use, so that not only is the time consumed in the process, but also the central hole of the grinding cutter disc or a main shaft for loading the grinding cutter disc is abraded after the grinding cutter disc is repeatedly detached and assembled, and the central hole of the grinding cutter disc is easily abraded in the process of packaging and transporting the grinding cutter disc; the abrasion affects the assembly precision, and the beating effect is generated during use to affect the grinding effect of the needle machining cutter.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a knife sharpener for grinding a cutter for processing a pointer, which comprises a machine table and a knife sharpening disc component arranged on the machine table, wherein the knife sharpening disc component comprises a knife sharpening disc and a knife sharpening disc driving piece for driving the knife sharpening disc to rotate; the machine table is provided with a repairing device for repairing the disc surface of the grinding disc; the repairing device comprises a support and a cutting tool for cutting the disc surface of the grinding disc, the support is installed on the machine table, the cutting tool is installed on the support, and the position of the cutting tool can be adjusted by the support so that the cutting tool can be in contact with or can be moved away from the disc surface of the grinding disc.

The utility model discloses be provided with prosthetic devices, mill the whetstone dish through the cutting means on the prosthetic devices and polish in order to resume the whetstone line on the whetstone dish, need not dismouting, transportation whetstone dish, reduce the impaired condition in whetstone dish shaft hole. The position of the cutting tool of the technical scheme is adjustable, and the grinding cutter disc is repaired by contacting or moving away the disc surface of the grinding cutter disc.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the repairing device of the present invention.

Fig. 3 is a schematic structural diagram of the repairing device of the present invention.

Fig. 4 is a schematic view of the fitting structure of the bracket and the cutting tool of the present invention.

Fig. 5 is a projection view of the fitting structure of the holder and the cutting tool of the present invention.

Fig. 6 is an exploded view of the support and the cutting tool of the present invention.

Fig. 7 is a schematic structural view of the rotating seat of the present invention.

Fig. 8 is the utility model discloses a lathe tool and lathe tool installation component's structure exploded view.

Fig. 9 is an exploded view of the wheel and wheel mounting assembly of the present invention.

Fig. 10 is a perspective view of the present invention.

Detailed Description

The application scheme is further described below with reference to the accompanying drawings:

referring to fig. 1 to 10, a knife sharpener for grinding a tool for machining a pointer includes a machine table 10, and a knife sharpening disk assembly 20 and a clamp 11 mounted on the machine table 10. The sharpening disk assembly 20 comprises a sharpening disk 21 and a sharpening disk driving piece 22 for driving the sharpening disk 21 to rotate. The fixture 11 is located above the grinding disc 21 and is used for fixing the pointer machining tool 12, as shown in fig. 1.

The machine table 10 is provided with a repairing device 30 for repairing the disc surface of the grinding disc; the repairing device 30 comprises a bracket 40 and a cutting tool 50 for cutting the disc surface of the grinding disc 21, wherein the bracket 40 is installed on the machine table 1, the cutting tool 50 is installed on the bracket 40, and the bracket 40 is arranged to adjust the position of the cutting tool 50 so that the cutting tool 50 contacts with or moves away from the disc surface of the grinding disc 21.

This technical scheme is provided with prosthetic devices 30, mills grinding disc 21 through cutting tool 50 on prosthetic devices 30 and polishes in order to resume the line of whetting a knife on the whetting a knife dish, need not dismouting, transportation whetting a knife dish, reduces the impaired condition in whetting a knife dish shaft hole. The position of the cutting tool 50 of the present embodiment is adjustable, and the grinding disc 21 is repaired by contacting or moving away from the disc surface of the grinding disc.

The cutting tool 50 comprises a grinding wheel 502 and a turning tool 501; the holder 40 is arranged to replaceably mount a grinding wheel 502 or a turning tool 501. During the repairing process, different types of cutting tools 50 are used to adjust different processing angles for processing so as to repair the grinding lines required by the grinding disc 21.

The bracket 40 is provided with an adjusting mechanism for adjusting an included angle between the cutting tool 50 and the disc surface of the grinding disc 21, and the included angle is adjusted according to the machining angle required by different cutting tools 50. The angle includes a zero condition, i.e., a state in which the end surface of the cutting tool 50 (e.g., the end surface of the grinding wheel 502) is parallel to the disk surface of the cutter disk 21.

As shown in fig. 4 to 6, the bracket 40 includes a support 41 and a rotating seat 42, the rotating seat 42 is rotatably mounted on the support 41, and the rotation axis of the rotating seat 42 is perpendicular to the rotation axis of the sharpening disk 21. The cutting tool 50 is mounted on the rotary base 42, and the holder 40 is configured to replaceably mount the grinding wheel 502 or the turning tool 501, that is, the rotary base 42 is configured to replaceably mount the grinding wheel 502 or the turning tool 501. The adjusting mechanism comprises a left adjusting piece 61 and a right adjusting piece 62 which are oppositely arranged on the support 41, and two lugs 63 which are respectively abutted against the left adjusting piece 61 and the right adjusting piece 62 on the rotating seat 42; the left adjusting member 61 and the right adjusting member 62 can be adjusted in a telescopic manner to push the lug 63 to drive the rotating seat 42 to rotate clockwise or counterclockwise, so as to adjust the angle of the cutting tool 50 swinging leftwards or rightwards. The cutting tool 50 can be leveled or the cutting tool can be tilted to obtain a desired machining angle by left-right swing adjustment during machining.

An arc-shaped groove 411 is arranged on the support 41; a sliding block 421 is arranged on the outer edge of the rotating seat 42; the sliding block 421 is disposed in the arc slot 411 and slides along the arc slot 411 when the rotating base 42 rotates. The rotating seat 42 is guided by the sliding block 421 to slide along the arc slot 411 on the support 41, and is stable and not easy to deflect.

The left adjusting piece 61 and the right adjusting piece 62 are both hexagon socket head bolts; two fixing blocks 412 for the inner hexagon bolts to penetrate through are arranged on the support 41, and the left adjusting piece 61 and the right adjusting piece 62 are respectively penetrated through the fixing blocks 412 and are in threaded connection with the fixing blocks; the left adjusting piece 61 and the right adjusting piece 62 are respectively provided with a penetrating end penetrating out of the fixed block 412, and the penetrating ends of the left adjusting piece 61 and the right adjusting piece 62 are oppositely arranged; the left and right adjusting members 61 and 62 are rotated by themselves to telescopically adjust the length of the penetrating end, which in this embodiment is hemispherical. The left adjusting piece 61 and the right adjusting piece 62 are abutted against corresponding lugs through the penetrating ends, and abutting surfaces of the lugs and the left adjusting piece 61 and the right adjusting piece 62 are oblique sections. The oblique section can be adjusted more finely than a straight surface.

The rotating base 42 is provided with a shaft sleeve 422 and an adjusting rotating shaft 423, and the adjusting rotating shaft 423 is arranged in the shaft sleeve 422 in a penetrating manner and is in rotating fit with the shaft sleeve 422. The rotation axis of the adjustment rotation shaft 423 is perpendicular to the rotation axis of the rotation base 42. An adjusting arm 425 is fixedly arranged at one end of the adjusting rotating shaft 423 far away from the cutting tool 50, the adjusting mechanism further comprises a front and back adjusting piece 64 arranged on the adjusting arm 425, and the front and back adjusting piece 64 is abutted against the support 41; the front and rear adjusting member 64 can be adjusted in a telescopic manner to push the adjusting arm 425 to drive the adjusting shaft to rotate clockwise or counterclockwise, so as to adjust the angle of the cutting tool in a front-rear swinging manner. The cutting tool 50 can be leveled or the cutting tool can be tilted to obtain a desired machining angle by adjusting the front and rear adjusting members 64 during machining.

The front and rear adjusting pieces 64 are hexagon socket head bolts; the front and rear adjusting piece 64 is arranged on the adjusting arm 425 in a penetrating way and is in threaded connection with the adjusting arm 425; the front and rear adjusting element 64 has a through end which extends out of the adjusting arm 425 and abuts against the support 41; the front-rear adjusting member 64 is rotated by itself to achieve telescopic adjustment. The adjusting device is adjusted through the inner hexagon bolts, can be hidden in corresponding components, and can be finely adjusted by rotating the inner hexagon bolts through tools when the adjusting device needs to be adjusted.

The support 40 is installed on the vertical guide rail 70 and is vertically matched with the vertical guide rail 70 in a sliding manner, and the vertical guide rail 70 is installed on the linear module 80 and is driven by the linear module 80 to linearly slide. In this embodiment, the linear module 80 includes a transverse guide rail 81, a sliding table 82 sliding along the transverse guide rail 81, and a servo motor 83 driving the sliding table 82 to slide, and the grinding disc 21 is located at the end of the transverse guide rail 81. The vertical guide rail 70 is mounted on the slide table 82. The vertical guide rail 70 is provided with an adjusting screw, the adjusting screw 71 is in threaded connection with the support 40, and the support 40 can be driven to slide up and down along the vertical guide rail 70 by rotating the adjusting screw 71. The holder 40 is adjusted by movement in the lateral and vertical directions to bring the cutting tool 50 into contact with or away from the disk surface of the grinder disc 21.

The adjusting rotating shaft 423 is provided with a connecting sleeve 424.

As shown in fig. 2 and 8, the grinding wheel 502 is provided with a set of grinding wheel mounting assemblies, the grinding wheel mounting assemblies include a sleeve 52 and a rotating spindle 51, the sleeve 52 is sleeved outside the rotating spindle 51, the rotating spindle 51 is rotatably assembled with the sleeve 52 relative to the sleeve 52, and the grinding wheel 502 is fixedly mounted at the lower end of the rotating spindle 51. When the grinding wheel 502 is mounted on the rotary base 42, the sleeve 52 is inserted into the connecting sleeve 424, and the sleeve 52 is fixedly assembled with respect to the connecting sleeve 424.

The rotating spindle 51 is driven to rotate by a rotating motor 54. The rotary motor 54 is mounted on a slide table 82 of a linear module 80. The motor shaft of the rotating motor 54 and the rotating main shaft 51 are both provided with belt pulleys 55, and the belt pulleys 55 are connected and driven through a belt. The rotating shaft of the cutting tool is driven to rotate through belt transmission, so that the vibration absorption effect is achieved, and the influence of vibration generated by the operation of the rotating motor on the cutting tool is reduced.

As shown in fig. 3 and 7, the turning tool 501 is provided with a group of turning tool installation assemblies, each turning tool installation assembly includes a fixed shaft 53 and a jackscrew 531, an insertion space into which a tool shank of the turning tool 501 is inserted is formed at the lower end of the fixed shaft 53, the jackscrew 531 is in threaded connection with the fixed shaft 53, and the jackscrew 531 presses the tool shank of the turning tool 501 inserted into the insertion space to lock the tool shank of the turning tool 501. When the turning tool 501 is mounted on the rotary base 42, the upper end of the fixed shaft 53 is inserted into the connection sleeve 424, and the upper end of the fixed shaft 53 is fixedly assembled with respect to the connection sleeve 424.

As shown in fig. 10, the sharpening disk 21 is mounted on a sharpening disk spindle 23; the sharpening disk driving part 22 is a rotating motor, a motor rotating shaft of the sharpening disk driving part 22 and a sharpening disk main shaft 23 are both provided with a transmission gear 24, and the transmission gear 24 is connected and driven through a transmission belt.

When the device is used, after the grinding cutter disc 21 on the knife sharpener polishes the needle machining cutter 12 for a period of time, the groove on the disc surface of the grinding cutter disc 21 becomes shallow or disappears, and the grinding cutter disc 21 needs to be repaired by starting the repairing device 30 on the knife sharpener. The cutting repair tool 50 used in the present embodiment includes a turning tool 501 and a grinding wheel, and the grinding wheel 502 includes a grinding wheel of a normal abrasive and a grinding wheel of an ultra-hard abrasive (diamond wheel). The concrete repairing operation steps are as follows:

1) firstly, using a turning tool 501 as a cutting tool 50, installing the turning tool 501 in a connecting sleeve 521 of an adjusting rotating shaft 423 for fixing, and driving a bracket 40 and the turning tool 501 on the bracket 40 to be close to a grinding cutter disc 21 through a linear module 80; then, the adjusting bracket 40 moves downwards along the vertical guide rail 70 to enable the turning tool 501 to be attached to the disc surface of the grinding disc, and the position of the turning tool 501 is fixed; the grinder plate 21 is driven to rotate to move relative to the turning tool 501, thereby scraping off the remaining grooves and diamond powder on the surface of the grinder plate.

2) The cutting tool 50 is replaced by a common grinding wheel, the grinding wheel is leveled through an adjusting mechanism (the grinding surface of the grinding wheel is parallel to the front surface of the knife sharpening disc), the grinding wheel 502 is moved to be attached to the disc surface of the knife sharpening disc, and the grinding wheel 502 and the knife sharpening disc 21 are driven to rotate simultaneously so as to grind the disc surface of the flat sharpening disc.

3) And changing a common grinding wheel into a diamond grinding wheel, adjusting the machining angle of the diamond grinding wheel through an adjusting mechanism, simultaneously driving the diamond grinding wheel and the sharpening disk 21 to rotate, and machining a groove in the disk surface of the sharpening disk 21.

4) And after the groove is machined, diamond powder is scattered into the groove to finish the repair of the grinding disc 21.

The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.

Claims

1. A knife sharpener for grinding a cutter used for machining a pointer comprises a machine table and a knife sharpening disc assembly arranged on the machine table, wherein the knife sharpening disc assembly comprises a knife sharpening disc and a knife sharpening disc driving piece used for driving the knife sharpening disc to rotate; the method is characterized in that:

the machine table is provided with a repairing device for repairing the disc surface of the grinding disc;

the repairing device comprises a support and a cutting tool for cutting the disc surface of the grinding disc, the support is installed on the machine table, the cutting tool is installed on the support, and the position of the cutting tool can be adjusted by the support so that the cutting tool can be in contact with or can be moved away from the disc surface of the grinding disc.

2. The machine for grinding a tool for machining a hand of a watch according to claim 1, characterized in that:

the cutting tool comprises a grinding wheel and a turning tool;

the holder is configured to replaceably mount a grinding wheel or a turning tool.

3. The tool sharpener of claim 2 for grinding a tool for machining a watch hand, wherein:

and the support is provided with an adjusting mechanism for adjusting an included angle between the cutting tool and the disc surface of the grinding disc.

4. The machine for grinding a tool for machining a hand of a watch according to claim 3, characterized in that:

the support comprises a support and a rotating seat, the rotating seat is rotatably arranged on the support, and the rotating axis of the rotating seat is perpendicular to the rotating axis of the sharpening disk;

the cutting tool is arranged on the rotating seat;

the adjusting mechanism comprises a left adjusting part and a right adjusting part which are oppositely arranged on the support and two lugs which are respectively propped against the left adjusting part and the right adjusting part on the rotating seat;

the left adjusting piece and the right adjusting piece can be adjusted in a telescopic and movable mode to push the lug to drive the rotating seat to rotate clockwise or anticlockwise.

5. The machine for grinding a tool for machining a hand of a watch according to claim 4, characterized in that:

an arc-shaped groove is formed in the support;

a sliding block is arranged on the outer edge of the rotating seat;

the sliding block is arranged in the arc-shaped groove and slides along the arc-shaped groove when the rotating seat rotates.

6. The machine for grinding a tool for machining a hand of a watch according to claim 4, characterized in that:

the rotating seat is provided with a shaft sleeve and an adjusting rotating shaft, and the adjusting rotating shaft penetrates through the shaft sleeve and is in rotating fit with the shaft sleeve;

the rotating axis of the adjusting rotating shaft is perpendicular to the rotating axis of the rotating seat;

the adjusting rotating shaft is fixedly connected with an adjusting arm, the adjusting mechanism further comprises a front adjusting piece and a rear adjusting piece which are arranged on the adjusting arm, and the front adjusting piece and the rear adjusting piece are abutted to the support;

the front and back adjusting piece can be adjusted in a telescopic and movable manner so as to push the adjusting arm to drive the adjusting rotating shaft to rotate clockwise or anticlockwise.

7. The machine for grinding a tool for machining a hand of a watch according to claim 4, characterized in that:

the left adjusting piece and the right adjusting piece are both hexagon socket head bolts;

the support is provided with two fixed blocks for the inner hexagon bolts to penetrate through, and the left adjusting piece and the right adjusting piece are respectively penetrated through and arranged on one fixed block and are in threaded connection with the fixed block;

the left adjusting piece and the right adjusting piece are respectively provided with a penetrating end which penetrates out of the fixed block, and the penetrating ends of the left adjusting piece and the right adjusting piece are arranged oppositely; the left adjusting piece and the right adjusting piece rotate to telescopically adjust the length of the penetrating end;

the left adjusting piece and the right adjusting piece are abutted against corresponding lugs through the penetrating ends, and abutting surfaces of the lugs and the left adjusting piece or the right adjusting piece are oblique sections.

8. The machine for grinding a tool for machining a hand of a watch according to claim 6, characterized in that:

the front and rear adjusting pieces are inner hexagon bolts;

the front and rear adjusting pieces penetrate through the adjusting arm and are in threaded connection with the adjusting arm;

the front and rear adjusting pieces are provided with penetrating ends which penetrate out of the adjusting arms, and the penetrating ends are abutted against the support; the front and back adjusting pieces rotate by themselves to realize telescopic movable adjustment.

9. The machine for grinding a tool for machining a hand of a watch according to claim 6, characterized in that:

the adjusting rotating shaft is provided with a connecting sleeve;

the grinding wheel is provided with a group of grinding wheel mounting assemblies, each grinding wheel mounting assembly comprises a sleeve and a rotating main shaft, the sleeve is sleeved outside the rotating main shaft, the rotating main shaft can be rotatably assembled with the sleeve relative to the sleeve, and the grinding wheel is fixedly mounted at the lower end of the rotating main shaft;

the turning tool is provided with a group of turning tool mounting assemblies, each turning tool mounting assembly comprises a fixed shaft and a jackscrew, an inserting space for inserting a tool shank of the turning tool is formed in the lower end of the fixed shaft, the jackscrew is in threaded connection with the fixed shaft, and the jackscrew tightly presses the tool shank of the turning tool inserted into the inserting space so as to lock the tool shank of the turning tool;

when the grinding wheel is installed on the rotating seat, the sleeve is inserted into the connecting sleeve, and the sleeve and the connecting sleeve are assembled in a relatively fixed mode;

when the turning tool is installed on the rotating seat, the upper end of the fixed shaft is inserted into the connecting sleeve, and the upper end of the fixed shaft and the connecting sleeve are assembled in a relatively fixed mode.

10. The machine for grinding a tool for machining a hand of a watch according to claim 9, characterized in that:

the rotating main shaft is driven to rotate by a rotating motor;

the motor shaft and the rotating main shaft of the rotating motor are both provided with belt pulleys, and the belt pulleys are connected and driven through a belt.