CN210549956U - Positioning mechanism and drill bit repair equipment - Google Patents

Abstract

The utility model provides a positioning mechanism for in the cutter repair equipment, positioning mechanism includes: the mounting seat is used for being mounted on the grinding machine; the first bracket is arranged on the mounting seat in a manner of moving along a preset direction; the second bracket is arranged on the first bracket in a rotatable mode; and the clamping assembly is detachably arranged on the second support and is used for clamping and fixing the cutter so as to grind the cutter on the grinding machine. The utility model also provides a drill bit repair equipment, including the abrasive machine, drill bit repair equipment still includes above-mentioned positioning mechanism, and positioning mechanism installs on the abrasive machine. The utility model provides a positioning mechanism can be fixed a position the cutter installation on the abrasive machine in order to carry out the grinding and restore, and positioning mechanism can adjust the position of cutter and adjust the grinding angle of cutter cutting edge.

Description

Positioning mechanism and drill bit repair equipment

Technical Field

The utility model belongs to the technical field of the drill bit is restoreed, more specifically says, relates to a positioning mechanism and drill bit repair equipment.

Background

The drill is a tool for drilling through holes or blind holes in solid materials and reaming existing holes. The cutting edge of the drill becomes dull after a long period of operation, and thus, the cutting edge thereof needs to be ground and repaired.

The drill bit should be very extensive in a nuclear power plant machining shop and therefore it is often necessary to perform abrasive repair of the drill bit cutting edge. However, in the process of grinding the cutting edge of the drill, particularly for a large drill, since the large drill is large in volume and weight, if the large drill is manually held, it is difficult to grasp the position of the large drill and also difficult to grasp the angle of the cutting edge. In addition, the large drill bit has heavy weight and needs to be ground and repaired for a long time, and if the large drill bit is uniformly and manually held for grinding, the situation that the large drill bit is not controlled easily occurs, and the danger is high for an operator.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a positioning mechanism to solve that what exist among the prior art leads to the drill bit position and cutting edge angle to hardly hold when the grinding is restoreed through handheld prosthetic mode, and operate dangerous great technical problem.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a positioning mechanism for use in a tool repairing apparatus, the positioning mechanism comprising:

the mounting seat is used for being mounted on the grinding machine;

the first bracket is arranged on the mounting seat in a manner of moving along a preset direction;

the second bracket is arranged on the first bracket in a rotatable mode;

and the clamping assembly is detachably arranged on the second support and is used for clamping and fixing the cutter so that the cutter can grind on the grinding machine.

Furthermore, the mounting seat extends along the preset direction, at least one mounting hole is formed in the mounting seat, the mounting holes are distributed along the preset direction, and the mounting seat penetrates through the mounting holes through fasteners to be mounted on the grinding machine.

Further, the positioning mechanism further comprises a linear driving mechanism;

the linear driving mechanism includes:

the worm is arranged on the mounting seat and extends along the preset direction;

the worm wheel is arranged on the first bracket and is in transmission connection with the worm;

and the hand wheel is arranged at one end of the worm and used for driving the worm to rotate.

Furthermore, a guide rail extending along the preset direction is arranged on the mounting base, a sliding block is convexly arranged at one end of the first support, the turbine is arranged on the sliding block, and the sliding block is slidably arranged in the guide rail; the guide rail is a dovetail groove guide rail, the sliding block is also in a dovetail shape, and scale marks distributed along the circumferential direction of the hand wheel are arranged on the hand wheel.

Furthermore, a first bolt is convexly arranged on the second support, a first pin hole is formed in the first support, the first bolt is inserted into the first pin hole, at least part of the first bolt penetrates through the first pin hole, and the part of the first bolt penetrating through the first pin hole is locked through a first nut.

Furthermore, a second bolt is convexly arranged on the clamping assembly, a second pin hole is formed in the second support, the second bolt is inserted into the second pin hole, at least part of the second bolt penetrates through the second pin hole, and the part of the second bolt penetrating through the second pin hole is locked through a second nut.

Further, the clamping assembly includes:

the second bolt is convexly arranged on the outer side of the first clamping piece;

the second clamping piece can be arranged opposite to the first clamping piece to clamp the cutter;

the first locking piece is used for locking one end of the first clamping piece with one end of the second clamping piece;

and the second locking piece is used for locking the other end of the first clamping piece with the other end of the second clamping piece.

Further, the first clamping piece and the second clamping piece are made of steel, and rubber layers are arranged on the inner sides of the first clamping piece and the second clamping piece.

Further, the first locking member comprises a bolt which sequentially penetrates through the first clamping piece and the second clamping piece, and a third nut which is locked at one end of the bolt;

the second retaining member comprises a pin shaft penetrating through the first clamping piece and the second clamping piece, a fourth nut connected to one end of the pin shaft and tightly abutted to the outer side of the second clamping piece, and an extrusion piece hinged to the other end of the pin shaft and capable of rotating to extrude the first clamping piece to move towards the second clamping piece.

The utility model also provides a drill bit repair equipment, including the abrasive machine, drill bit repair equipment still includes above-mentioned positioning mechanism, positioning mechanism install in on the abrasive machine.

The utility model provides a positioning mechanism's beneficial effect lies in: compared with the prior art, the utility model discloses a positioning mechanism passes through the setting of mount pad, first support, second support and centre gripping subassembly for can fix a position the cutter centre gripping on the abrasive machine through positioning mechanism and restore in order to carry out the grinding, need not to fix a position the cutter through handheld, guaranteed the prosthetic stability of cutter grinding, reduced operator's danger. Meanwhile, the first support is movably arranged on the mounting seat, and the second support is rotatably arranged on the first support, so that the position of the cutter and the grinding angle of the cutting edge of the cutter can be adjusted, and a better grinding effect is achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a positioning mechanism according to an embodiment of the present invention;

FIG. 2 is a rear schematic view of the positioning mechanism of FIG. 1;

FIG. 3 is a side schematic view of the positioning mechanism of FIG. 1;

fig. 4 is an exploded view of the positioning mechanism of fig. 1.

Wherein, in the figures, the respective reference numerals:

1-a clamping assembly; 2-a second scaffold; 3-a first scaffold; 4-mounting a base; 5-a linear drive mechanism; 6-a first nut; 7-a second nut; 11-a first clamping piece; 12-a second clamping piece; 13-a first locking member; 14-a second locking member; 21-a first bolt; 22-a second pin hole; 31-a first strut; 32-a second strut; 41-mounting holes; 51-a worm; 52-a hand wheel; 111-a second pin; 131-bolts; 132-a third nut; 141-a pin shaft; 142-a fourth nut; 143-an extrusion; 321-a first pin hole; 521-scale lines; 1411-major axis; 1412-minor axis.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, a positioning mechanism provided by the present invention will now be described. The positioning mechanism is used in the cutter repairing equipment, and in the embodiment, the positioning mechanism is mainly used for positioning the drill bit on the grinding machine in a mode that the position and the angle are adjustable, so that the drill bit can be conveniently ground and repaired on the grinding machine. It is understood that in other embodiments of the present invention, the positioning mechanism may be used to position other tools to be repaired on the grinder, and is not limited thereto.

The positioning mechanism comprises a mounting seat 4, a first support 3, a second support 2 and a clamping assembly 1. The mounting seat 4 is used for being mounted on a grinding machine. The first support 3 is installed on the mounting seat 4, the second support 2 is installed on the first support 3, the clamping assembly 1 is installed on the second support 2, and the clamping assembly 1 is used for clamping and fixing a cutter so that the cutter can be ground on a grinding machine.

When the mounting seat 4 is mounted on the grinder, the whole positioning mechanism is mounted on the grinder, so that the cutter can be conveniently ground. In this embodiment, the mounting seat 4 is installed at a position originally used for installing a tool rest on the grinder, so as to ensure a relative position of the tool and the grinding wheel, and facilitate the grinding of the tool.

The first support 3 is arranged on the mounting seat 4 in a manner of moving along a predetermined direction, so that the second support 2, the clamping component 1 and the cutter are driven to be arranged on the mounting seat 4 in a movable manner, and the position of the cutter is adjusted and positioned. It should be noted that, in this embodiment, the predetermined direction is a left-right direction in fig. 1, that is, an axial direction of the grinding wheel on the grinding machine, and the position of the tool in the grinding wheel axial direction is adjusted by adjusting the position of the tool in the grinding wheel axial direction, so as to adjust the relative position of the tool and the grinding wheel in the grinding wheel axial direction, thereby facilitating better grinding of the tool.

Second support 2 is located first support 3 with rotatable mode on to drive centre gripping subassembly 1 and cutter and all locate first support 3 with rotatable mode on, and then realize the adjustment and the location of the relative emery wheel angle of cutting edge on the cutter, be convenient for improve the grinding precision of cutter cutting edge.

The clamping assembly 1 is detachably arranged on the second support 2, so that the clamping assembly 1 is convenient to disassemble and replace, and the clamping assembly is suitable for clamping different tools.

The utility model provides a positioning mechanism passes through mount pad 4, first support 3, second support 2 and centre gripping subassembly 1's setting for can fix a position the cutter centre gripping on the abrasive machine through positioning mechanism and restore in order to carry out the grinding, need not to fix a position the cutter through handheld, guaranteed the prosthetic stability of cutter grinding, reduced operator's danger. Meanwhile, the first support 3 is movably arranged on the mounting seat 4, and the second support 2 is rotatably arranged on the first support 3, so that the position of the cutter and the grinding angle of the cutting edge of the cutter can be adjusted, and a better grinding effect is achieved.

Referring to fig. 2, the mounting base 4 is elongated and extends along a predetermined direction, at least one mounting hole 41 is formed in the mounting base 4, the mounting holes 41 are distributed along the predetermined direction, the mounting holes 41 are screw holes, and the mounting base 4 is installed on the grinder by passing fasteners through the mounting holes 41.

Specifically, in this embodiment, two mounting holes 41 are formed in the mounting seat 4, the two mounting holes 41 are formed in one side of the mounting seat 4 facing the grinding machine, the two mounting holes 41 are arranged at intervals and are deviated to one end of the mounting seat 4, the second support 2 is movably arranged at the position of the other end of the mounting seat 4, and thus when the mounting seat 4 is installed on one side of the grinding machine adjacent to the grinding wheel, the second support 2, the clamping component 1 and the tool can extend out of one side of the grinding wheel, and the tool can be ground by the grinding wheel. It is understood that in other embodiments of the present invention, one, three or more than three mounting holes 41 may be provided on the mounting seat 4, which is not limited herein.

Referring to fig. 4, the positioning mechanism further includes a linear driving mechanism 5. The linear driving mechanism 5 includes a worm 51, a worm wheel (not shown in the figure) and a hand wheel 52, the worm 51 is disposed on the mounting seat 4 and extends along a predetermined direction, that is, the worm 51 extends in the same direction as the mounting seat 4, the worm wheel is disposed on the first bracket 3 and is in transmission connection with the worm 51, and the hand wheel 52 is disposed at one end of the worm 51 and is used for driving the worm 51 to rotate. When the position of the cutter relative to the grinding wheel needs to be adjusted, the hand wheel 52 is manually rotated, the hand wheel 52 drives the worm 51 to rotate, and the worm 51 drives the worm wheel and the second support 2 on the worm to move, so that the cutter is driven to move.

In the present embodiment, the worm 51 is disposed in the inner cavity of the mounting seat 4, one end of the worm 51 extends out of one end of the mounting seat 4, the hand wheel 52 is sleeved on one end of the worm 51 so as to drive the worm 51 to rotate outside the mounting seat 4, and the worm wheel is disposed at one end of the second bracket 2 and located inside the mounting seat 4.

More specifically, referring to fig. 4, the mounting seat 4 is formed by two opposite nested U-shaped frames, the worm 51 is mounted in the relatively small U-shaped frame, and the hand wheel 52 is also arranged outside the end of the U-shaped frame.

In this embodiment, referring to fig. 1, the hand wheel 52 is provided with scales 521 distributed along the circumferential direction, so that the grinding position of the tool can be accurately adjusted.

In this embodiment, the mounting base 4 is provided with a guide rail (not shown) extending along a predetermined direction, one end of the first bracket 3 is provided with a convex slider, the worm wheel is arranged on the slider, and the slider is slidably arranged in the guide rail. Specifically, the guide rail is a dovetail groove guide rail, the sliding block is also in a dovetail shape, the second support 2 and the drill bit can be slowly close to the surface of the grinding wheel to grind the drill bit, and the hand wheel 52 is provided with scale marks 521 to control the feeding amount of the drill bit during grinding, so that the two cutting edges of the drill bit can be parallel and level.

Referring to fig. 1 and 4, in the present embodiment, the first support 3 is L-shaped, and includes a first support rod 31 and a second support rod 32, the first support rod 31 is vertically disposed, and the bottom end of the first support rod is connected to the mounting seat 4, the second support rod 32 is horizontally disposed, one end of the second support rod 32 is connected to the top end of the first support rod 31, the other end of the second support rod 32 is connected to the second support 2, and the first support rod 31 and the second support rod 32 are integrally connected. When the mounting 4 is mounted on the side of the grinder adjacent to the grinding wheel, the second strut 32 extends horizontally into the side of the grinding wheel to ensure that the tool is positioned opposite the grinding wheel.

Referring to fig. 3 and 4, the second bracket 2 is cylindrical, and the second bracket 2 is disposed on the other end of the second support rod 32. The second support 2 is convexly provided with a first bolt 21, the first support 3 is provided with a first pin hole 321, the first pin hole 321 is specifically formed in the second support rod 32, the first bolt 21 is inserted into the first pin hole 321 and at least partially penetrates through the first pin hole 321, and the part of the first bolt 21 penetrating through the first pin hole 321 is locked by the first nut 6. In this embodiment, the first bolt 21, the first pin hole 321 and the first nut 6 form a rotation mechanism between the second bracket 2 and the first bracket 3, when the grinding angle of the cutting edge of the tool needs to be adjusted, the first nut 6 can be unscrewed, the first bolt 21 is manually rotated in the first pin hole 321, and after the tool is rotated to a required angle (i.e. an included angle between the main cutting edge of the drill and the axis of the drill), the first nut 6 is tightened to fix the positions of the second bracket 2 and the tool, so that the effect of accurately adjusting the angle of the main cutting edge is achieved in the grinding process of the drill.

Similarly, referring to fig. 3 and 4, a second pin 111 is convexly disposed on the clamping assembly 1, a second pin hole 22 is disposed on the second bracket 2, the second pin 111 is inserted into the second pin hole 22 and at least partially penetrates through the second pin hole 22, and the portion of the second pin 111 penetrating through the second pin hole 22 is locked by the second nut 7. This embodiment realizes dismantling of centre gripping subassembly 1 on second support 2 through second bolt 111, second pinhole 22 and second nut 7, when the different cutters of centre gripping grinding are needed, can dismantle from second support 2 and change its simple structure, convenient operation to centre gripping subassembly 1.

Referring to fig. 1, 3 and 4, the clamping assembly 1 includes a first clamping plate 11, a second clamping plate 12, a first locking member 13 and a second locking member 14. The second bolt 111 is protruded outside the first holding piece 11, the second holding piece 12 can be arranged opposite to the first holding piece 11 to hold the drill, the first locking member 13 is used for locking one end of the first holding piece 11 with one end of the second holding piece 12, and the second locking member 14 is used for locking the other end of the first holding piece 11 with the other end of the second holding piece 12. When the tool is mounted, the openings of the first and second holding pieces 11 and 12 are adjusted by the first and second locking members 13 and 14, and then the tool is placed in the openings and the first and second locking members 13 and 14 are locked.

Preferably, in this embodiment, the first clamping piece 11 and the second clamping piece 12 are made of steel, so as to ensure the structural strength of the clamping piece and the clamping force on the tool. Meanwhile, the rubber layers are arranged on the inner sides of the first clamping piece 11 and the second clamping piece 12, and the rubber layers are arranged between the cutter and the steel, so that mutual abrasion between the steel and the cutter is prevented.

Specifically, the first locking member 13 includes a bolt 131 and a third nut 132, the bolt 131 sequentially passes through the first clamping piece 11 and the second clamping piece 12, the third nut 132 is locked at one end of the bolt 131, and the opening of the first clamping piece 11 and the opening of the second clamping piece 12 can be adjusted by loosening the third nut 132.

Specifically, the second locking member 14 includes a pin 141, a fourth nut 142 and an extrusion member 143, the pin 141 penetrates through the first clamping piece 11 and the second clamping piece 12, the fourth nut 142 is connected to one end of the pin 141 and abuts against the outside of the second clamping piece 12, and the extrusion member 143 is hinged to the other end of the pin 141 and can rotate to extrude the first clamping piece 11 to move towards the second clamping piece 12. Specifically, referring to fig. 141, the pin 141 includes a long axis 1411 and a short axis 1412 connected in a T shape, wherein the long axis 1411 is inserted into screw holes of the second holding piece 12 and the first holding piece 11, the short axis 1412 is disposed at an outer side of the first holding piece 11, the fourth nut 142 is connected to the long axis 1411 and abuts against an outer side of the second holding piece 12, the pressing piece 143 is hinged to the short axis 1412 and is disposed eccentrically to the short axis, the pressing piece 143 includes a pressing surface for pressing the first holding piece 11 to move toward the second holding piece 12 when the pressing piece 143 rotates eccentrically to the short axis 1412, and openings of the first holding piece 11 and the second holding piece 12 are reduced, so as to clamp the fixing tool.

The utility model also provides a drill bit repair equipment, including abrasive machine and above-mentioned positioning mechanism, positioning mechanism installs on the abrasive machine. The drill bit repair equipment of this embodiment passes through positioning mechanism's setting to the installation location of the cutter of being convenient for improves the restoration precision of cutter, has also avoided personnel's injury simultaneously.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Positioning mechanism for in the cutter repair equipment, its characterized in that, positioning mechanism includes:

the mounting seat is used for being mounted on the grinding machine;

the first bracket is arranged on the mounting seat in a manner of moving along a preset direction;

the second bracket is arranged on the first bracket in a rotatable mode;

and the clamping assembly is detachably arranged on the second support and is used for clamping and fixing the cutter so that the cutter can grind on the grinding machine.

2. The positioning mechanism as set forth in claim 1, wherein said mounting seat extends along said predetermined direction, said mounting seat having at least one mounting hole, said mounting holes being distributed along said predetermined direction, said mounting seat being mounted to said grinder by fasteners passing through said mounting holes.

3. The positioning mechanism of claim 1, further comprising a linear drive mechanism;

the linear driving mechanism includes:

the worm is arranged on the mounting seat and extends along the preset direction;

the worm wheel is arranged on the first bracket and is in transmission connection with the worm;

and the hand wheel is arranged at one end of the worm and used for driving the worm to rotate.

4. The positioning mechanism according to claim 3, wherein the mounting base is provided with a guide rail extending along the predetermined direction, one end of the first bracket is provided with a sliding block in a protruding manner, the turbine is arranged on the sliding block, and the sliding block is slidably arranged in the guide rail; the guide rail is a dovetail groove guide rail, the sliding block is also in a dovetail shape, and scale marks distributed along the circumferential direction of the hand wheel are arranged on the hand wheel.

5. The positioning mechanism according to claim 1, wherein a first pin is protruded from the second bracket, a first pin hole is formed in the first bracket, the first pin is inserted into the first pin hole and at least partially penetrates through the first pin hole, and the first pin penetrates through the first pin hole and is locked by a first nut.

6. The positioning mechanism according to claim 1, wherein a second pin is protruded from the clamping assembly, a second pin hole is formed in the second bracket, the second pin is inserted into the second pin hole and at least partially penetrates through the second pin hole, and the portion of the second pin penetrating through the second pin hole is locked by a second nut.

7. The positioning mechanism of claim 6, wherein the clamping assembly comprises:

the second bolt is convexly arranged on the outer side of the first clamping piece;

the second clamping piece can be arranged opposite to the first clamping piece to clamp the cutter;

the first locking piece is used for locking one end of the first clamping piece with one end of the second clamping piece;

and the second locking piece is used for locking the other end of the first clamping piece with the other end of the second clamping piece.

8. The positioning mechanism according to claim 7, wherein said first clamping piece and said second clamping piece are made of steel, and rubber layers are disposed on inner sides of said first clamping piece and said second clamping piece.

9. The positioning mechanism according to claim 8, wherein said first locking member includes a bolt passing through said first holding piece and said second holding piece in sequence, and a third nut locked to one end of said bolt;

the second retaining member comprises a pin shaft penetrating through the first clamping piece and the second clamping piece, a fourth nut connected to one end of the pin shaft and tightly abutted to the outer side of the second clamping piece, and an extrusion piece hinged to the other end of the pin shaft and capable of rotating to extrude the first clamping piece to move towards the second clamping piece.

10. Drill bit restoration device comprising a grinder, characterized in that it further comprises a positioning mechanism according to any one of claims 1 to 9, said positioning mechanism being mounted on said grinder.

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