KR101801684B1 - Drill Re-Grinding Jig and Drill Re-Grinding Method Using The Same - Google Patents

Abstract

Disclosed are a drill grinding jig and a drill grinding method using the same. According to one embodiment of the present invention, the drill grinding jig mounted on a rotary work head having a mounting protrusion protruding from an outer circumferential surface as much as a predetermined height to guide the position of a drill comprises: a mounting part mounted on the mounting protrusion formed on the outer circumferential surface of the rotary work head and mounting a horizontal support on one side surface to be able to rotate; a horizontal support extended in a predetermined length from the mounting part to a front of the rotary work head; a stopper mounted on one end part of the horizontal support to be able to rotate and having a drill contact surface in contact with one end part of a drill mounted on the rotary work head; and a vertical support mounted on one end part of the stopper to be able to rotate and having a lathe contact surface in contact with an upper surface of a lathe wherein the rotary work head is mounted. According to the present invention, provided is a drill grinding jig, capable of accurately setting the position of a drill to be ground while mounted on one side of a rotary work head.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drill grinding jig and a drill grinding method using the drill grinding jig,

The present invention relates to a drill grinding jig and a drill grinding method using the drill grinding jig, and more particularly to a drill grinding jig mounted on one side of a rotary work head to accurately set a position of a drill to be ground and a drill grinding method using the jig will be.

Drill is a machine tool used to drill holes in various materials. A carbide drill is a drill made of ultra-high grade steel, and a cutting tool is widely used along with a high-speed steel high-speed drill.

The carbide drill has better hardness and the high drill has better toughness.

Cemented carbide drills are widely used for machining holes in workpieces having a hardness higher than that of ordinary metal materials, such as stainless steel. In the case of the cemented carbide drill 100 (hereinafter, referred to as a drill), the center groove is often obliquely inclined in the diagonal direction along the longitudinal direction for the purpose of enhancing the cutting force. It is known that the deeper the depth of the center groove, the better the cutting force. The cutting surface is also provided symmetrically between the center grooves and is a flat surface rather than a curved surface. One cutting surface 102 may be composed of two planes having an angle of incidence. The other cutting surface 102 'may also be composed of two planes with an angle of incidence.

On the other hand, diamond grindstone is used for grinding of drill. Care should be taken not to apply high heat at the moment of grinding so that the material of drill is not changed.

When the drill is used for a certain amount of time, the blade is worn out and the cutting force is lowered. However, it is desirable to grind and reuse the drill because the price of the drill is expensive and it becomes a heavy burden to replace it with a new one every time.

For this purpose, according to the prior art, the drill grinding apparatus shown in Figs. 1 to 3 is also used.

Specifically, the drill grinding apparatus according to the related art includes an electric motor 1; And a grinding wheel (3) installed at an output shaft of the electric motor (1) and rotating at a high speed; A base plate (7) provided at a side of the grindstone (3); A first shaft (17) provided on the base plate (7) so as to be parallel to a rotation axis of the grindstone (3); A main shaft support portion 16 mounted on the first shaft 17 to rotate about the first shaft 17; And a main shaft mounted on the main shaft support portion 16 and provided with a drill bit 19 for inserting and fixing a drill 100 to be grounded at the tip thereof.

In addition, by providing the base plate starting means for allowing the base plate 7 to approach or retract toward the grindstone 3, it is possible to adjust the position of the drill bit 19 at a desired angle And the drill can be linearly moved in the direction of the center of the center of the drill, so that the planar cut surface can be ground to a desired shape and the center groove can be accurately grinded.

According to the drill grinding apparatus of the prior art, the method of use is simple, so that it can be easily used by anyone without special skill or know-how.

However, in the above-mentioned prior art drill grinding apparatus, there is no configuration that can measure the driving amount or limit the driving amount when driving the base plate starting means, and the driving amount is directly measured by the operator's hand And as a result, there is a problem that the grinding quality varies depending on the skill level of the operator.

Specifically, in the case of the drill grinding apparatus according to the prior art, there is no configuration that can accurately and easily confirm the angle of seaming and the width dimension when grinding the drill.

Therefore, when performing a grinding operation on a drill using a drill grinding apparatus according to the prior art, it is necessary to perform three to five repetitive operations per drill in order to confirm the seeding angle and the width dimension, It has time consuming problems.

Further, in the case of the drill grinding apparatus according to the related art, it is difficult to carry out the same seeding grinding with respect to a large amount of drills, so that consistent quality can not be maintained.

Therefore, there is a need for a drill grinding jig and a drill grinding method using the drill grinding jig capable of solving the above-mentioned problems according to the related art.

Korean Registered Patent No. 10-1353007 (registered on Jan. 13, 2014)

SUMMARY OF THE INVENTION An object of the present invention is to provide a drill grinding jig mounted on one side of a rotary work head and capable of precisely setting a position of a drill to be ground and a drill grinding method using the same.

According to an aspect of the present invention, there is provided a drill grinding jig for guiding the position of a drill mounted on a rotary work head having a mounting protrusion protruded by a predetermined height on an outer circumferential surface thereof, A mounting portion mounted on a mounting protrusion formed on an outer peripheral surface of the mounting portion, the mounting portion being rotatably mounted on one side surface; A horizontal support extending from the mounting portion a predetermined length forward of the rotary workhead; A stopper rotatably mounted at one end of the horizontal support and having a drill contact surface for contacting one end of the drill mounted on the rotary workhead; And a vertical support rotatably mounted at one end of the stopper and having a shelf contact surface contacting the upper surface of the shelf on which the rotary workhead is mounted.

In one embodiment of the present invention, the mounting portion includes: a body portion having a plate-like structure corresponding to a part of an outer circumferential surface of the rotary work head; A pair of lateral extending portions extending a predetermined length in one direction from the body portion so as to surround a part of the outer circumferential surface of the rotary work head; And a binding groove formed in the lateral extension portion.

In this case, the body portion and the side extension portion may have a structure having a 'C' shape on the transverse plane.

In addition, the binding groove may be a single open slit structure in which one side of the binding groove comes into contact with one end of the side extending portion and is opened to the outside.

In one embodiment of the present invention, the horizontal support may be provided with a variable length member capable of changing the extension length of the horizontal support.

In this case, a length measuring member capable of measuring an extension length of the horizontal support can be mounted on the horizontal support.

In one embodiment of the present invention, the stopper may be coupled to one end of the horizontal support by two or more fastening bolts.

In one embodiment of the present invention, the vertical support may be provided with a length varying member capable of changing an extension length of the vertical support.

In this case, a length measuring member capable of measuring an extension length of the horizontal support can be mounted on the horizontal support.

The present invention also provides a drill grinding method using the drill grinding jig. According to one aspect of the present invention, there is provided a drill grinding method comprising the steps of: a) mounting a mounting portion of a drill grinding jig on a mounting projection A jig mounting step of mounting the jig on the base; b) a step of checking the level of the horizontal support after checking the length of the drill to be ground; c) a number of steps to determine the height of the drill to be ground; a vertical support check step to check the length of the vertical support; d) a drill fixing step of mounting the drill to be ground on the rotary workhead, confirming the position of the drill using a stopper, and then fixing the drill; And e) a vertical support position changing step of changing the position of the vertical support to avoid interference of the vertical support during the drill grinding operation.

In one embodiment of the present invention, the drill grinding method may include: f) a mirror checking step of confirming the opposite state of the drilled grind using a mirror.

As described above, according to the drill grinding jig of the present invention, by having the mounting portion of a specific structure, the horizontal support, the stopper, and the vertical support, it is possible to mount on one side of the rotary work head to accurately set the position of the drill to be ground A drill grinding jig can be provided.

According to the drill grinding jig of the present invention, a mounting portion mounted on a mounting projection formed on the outer circumferential surface of the rotary work head, the mounting portion rotatably mounting the horizontal support on one side thereof; A horizontal support extending from the mounting portion a predetermined length forward of the rotary workhead; A stopper rotatably mounted at one end of the horizontal support and having a drill contact surface in contact with one end of the drill mounted to the rotary workhead; And a vertical support rotatably mounted at one end of the stopper and provided with a shelf contact surface in contact with the upper surface of the shelf on which the rotary workhead is mounted so that the position of the drill to be grounded You can set it correctly.

Further, according to the drill grinding jig of the present invention, by including the mounting portion having the body portion of the specific structure, the side extension portion and the coupling groove, it can be easily and firmly mounted on the rotary workhead, and as a result, Can be performed.

Further, according to the drill grinding jig of the present invention, by providing the horizontal support member and the vertical support member on which the variable length member can be changed, the length of the drill grinding jig can be suitably adjusted in accordance with the specifications of the drill to be ground and the specification of the rotary workhead The drill grinding operation can be performed.

Further, according to the drill grinding jig of the present invention, since the length measuring member capable of measuring the extension length of the horizontal support can be provided, the length of the horizontal support can be easily and accurately changed according to the specification of the drill to be ground, A separate length measuring device for measuring the length of the drill is not required, and the efficiency of the grinding operation can be remarkably improved.

Further, according to the drill grinding method using the drill grinding jig of the present invention, by including the jig mounting step of a specific configuration, the horizontal support checking step, the vertical support checking step, the drill fixing step and the vertical support position changing step, The work setting time can be remarkably shortened, and the efficiency of drill grinding can be maximized.

Further, according to the drill grinding method using the drill grinding jig of the present invention, it is possible to repeatedly perform the drill grinding work in a short time by an easy method using a simple high drill grinding jig, The cost can be remarkably reduced.

Further, according to the drill grinding method using the drill grinding jig of the present invention, by further including a mirror checking step of confirming the opposite state of the drilled grind using the mirror mirror, it is possible to confirm the grinding operation state more accurately So that the efficiency of the drill grinding operation can be remarkably improved.

1 is a perspective view showing a drill grinding apparatus according to the prior art.
Fig. 2 is a partially exploded view showing the drill grinding apparatus shown in Fig. 1. Fig.
Fig. 3 is a front view showing the drill grinding apparatus shown in Fig. 1. Fig.
4 is a perspective view showing a drill grinding jig according to an embodiment of the present invention.
5 is a perspective view showing a state in which the drill grinding jig shown in Fig. 4 is mounted on a rotary work head.
6 is a partially enlarged view showing a state in which the position of the one end of the drill is adjusted by using a stopper after mounting the drill to be machined on the rotary workhead shown in Fig.
FIG. 7 is a perspective view showing a state in which the vertical support of the drill grinding jig shown in FIG. 5 is bent.
8 is a perspective view showing a state in which the opposite side of the drill machined with a mirror is illuminated.
9 is a flowchart showing a drill grinding method according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to the description, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and should be construed in accordance with the technical concept of the present invention.

Throughout this specification, when a member is "on " another member, this includes not only when the member is in contact with another member, but also when there is another member between the two members. Throughout this specification, when an element is referred to as "including" an element, it is understood that it may include other elements as well, without departing from the other elements unless specifically stated otherwise.

FIG. 4 is a perspective view showing a drill grinding jig according to an embodiment of the present invention, and FIG. 5 is a perspective view showing a state where the drill grinding jig shown in FIG. 4 is mounted on a rotary work head. Fig. 6 is a partially enlarged view showing a state in which the position of the one end of the drill is adjusted by using a stopper after mounting the drill to be machined on the rotary workhead shown in Fig.

Referring to these figures, the drill grinding jig 100 according to the present embodiment is mounted on a rotary work head 20 having a mounting projection 21 protruding by a predetermined height on its outer surface, Is a drill grinding jig.

According to the drill grinding jig 100 according to the present embodiment, by having the mounting portion of a specific structure, the horizontal support, the stopper, and the vertical support, it is possible to accurately set the position of the drill to be ground, A drill grinding jig can be provided.

Hereinafter, with reference to the drawings, each constitution of the drill grinding jig 100 according to the present embodiment will be described in detail.

The mounting portion 110 according to the present embodiment is mounted on the mounting projection 21 formed on the outer circumferential surface of the rotary work head 20 and the horizontal support 120 can be rotatably mounted on one side.

4, the mounting portion 110 includes a body portion 111 of a plate-like structure corresponding to a part of the outer circumferential surface of the rotary work head 20, And a pair of lateral extension parts 112 extending a predetermined length from the body part 111 in one direction so as to surround a part of the outer peripheral surface.

The body portion 111 and the side extension portion 112 may have a structure having a 'C' shape in a transverse plane so as to enclose a part of the outer circumferential surface of the rotary work head 20, as the case may be.

At this time, a coupling groove 113 may be formed in the side extension 112. Optionally, the binding groove 113 may be a single open slit structure in which one side abuts one end of the side extension 112 and is open to the outside. In this case, the mounting portion 110 can be stably fixed by easily mounting the mounting portion 110 on the outer circumferential surface of the rotary work head 20 and then bolting using the binding groove 113.

On the other hand, the horizontal support 120 may have a structure extending from the mounting portion 110 to the front of the rotary workhead 20 by a predetermined length.

Depending on the case, the horizontal support 120 may be provided with a variable length member capable of changing the extension length of the horizontal support 120 so that the length of the horizontal support 120 can be appropriately changed according to the specification of the drill to be ground .

At this time, a length measuring member capable of measuring an extension length of the horizontal support 120 is mounted on the horizontal support 120, so that the extension length of the horizontal support 120 can be easily measured.

The stopper 130 may be rotatably mounted at one end of the horizontal support 120. 6, the stopper 130 according to the present embodiment has a structure in which a drill contact surface 131 that contacts one end of the drill 10 mounted on the rotary workhead 20 is formed .

The stopper 130 may be coupled to one end of the horizontal support 120 by two or more fastening bolts 121 in order to stably maintain the coupling relationship between the horizontal support 120 and the stopper 130. [ have.

The vertical support 140 is rotatably mounted at one end of the stopper 130 and can be bent in one direction according to the operator's intention as shown in Fig.

In the lower end of the vertical support 130 according to the present embodiment, a shelf contact surface 141 contacting the upper surface of the shelf 22 on which the rotary workhead 20 is mounted may be formed.

Optionally, the vertical support 140 may be equipped with a length-adjustable member 142 that can change the extension length of the vertical support 140.

The length-varying member 142 is not particularly limited as long as it can change the length of the vertical support 140. For example, as shown in FIG. 7, Can be changed. In this case, the length of the vertical support 140 can be appropriately changed from the upper surface of the shelf 22 on which the rotary workhead 20 is mounted.

In some cases, the vertical support 140 may be provided with a length measuring member capable of measuring the extension length of the horizontal support 120 to easily measure the extension length of the vertical support 140.

As described above, according to the drill grinding jig of the present invention, by having the mounting portion of a specific structure, the horizontal support, the stopper, and the vertical support, it is possible to mount on one side of the rotary work head to accurately set the position of the drill to be ground A drill grinding jig can be provided.

According to the drill grinding jig of the present invention, a mounting portion mounted on a mounting projection formed on the outer circumferential surface of the rotary work head, the mounting portion rotatably mounting the horizontal support on one side thereof; A horizontal support extending from the mounting portion a predetermined length forward of the rotary workhead; A stopper rotatably mounted at one end of the horizontal support and having a drill contact surface in contact with one end of the drill mounted to the rotary workhead; And a vertical support rotatably mounted at one end of the stopper and provided with a shelf contact surface in contact with the upper surface of the shelf on which the rotary workhead is mounted so that the position of the drill to be grounded You can set it correctly.

Further, according to the drill grinding jig of the present invention, by including the mounting portion having the body portion of the specific structure, the side extension portion and the coupling groove, it can be easily and firmly mounted on the rotary workhead, and as a result, Can be performed.

Further, according to the drill grinding jig of the present invention, by providing the horizontal support member and the vertical support member on which the variable length member can be changed, the length of the drill grinding jig can be suitably adjusted in accordance with the specifications of the drill to be ground and the specification of the rotary workhead The drill grinding operation can be performed.

Further, according to the drill grinding jig of the present invention, since the length measuring member capable of measuring the extension length of the horizontal support can be provided, the length of the horizontal support can be easily and accurately changed according to the specification of the drill to be ground, A separate length measuring device for measuring the length of the drill is not required, and the efficiency of the grinding operation can be remarkably improved.

FIG. 8 is a perspective view illustrating a state in which the opposite side of the drill is mirrored using a mirror, and FIG. 9 is a flowchart illustrating a drill grinding method according to an embodiment of the present invention.

4 to 7, the drill grinding method S100 according to the present embodiment includes a jig mounting step S110, a horizontal support inspection step S120, a vertical support inspection step S130 , A drill fixing step (S140), and a vertical support position changing step (S150).

Specifically, in order to perform grinding on the drill, a jig mounting step (S110) is carried out so that the mounting portion of the drill grinding jig can be mounted and fixed to the mounting projection formed on the outer circumferential surface of the rotary work head.

Then, a horizontal support inspection step (S120) is performed to check the length of the drill to be ground, and then check the length of the horizontal support.

In addition, a vertical support check step (S130) is performed to check the height position of the drill to be ground, and then check the length of the vertical support.

After the drill to be ground is mounted on the rotary workhead, the position of the drill is confirmed using the stopper, and then a drill fixing step (S140) is performed to fix the drill.

After the above-described series of steps is performed, the step of changing the vertical support position (S150) may be performed to change the position of the vertical support to avoid interference of the vertical support during the drill grinding operation.

As a result, it is possible to more accurately confirm the state of the grinding operation when the grinding operation state is safe and easy, so that the efficiency of the drill grinding operation can be remarkably improved by confirming the opposite state of the grinding drill using the mirror (S160) have.

According to the drill grinding method (S100) using the drill grinding jig of the present invention, the jig mounting step (S110), the horizontal support inspection step (S120), the vertical support inspection step (S130), the drill fixing step By including the vertical support position changing step (S140), the grinding operation setting time for the drill can be remarkably shortened, and the efficiency of the drill grinding operation can be maximized.

Further, according to the drill grinding method (S100) using the drill grinding jig of the present invention, it is possible to repeatedly perform the drill grinding work in a short time by an easy method using a simple high drill grinding jig, And the cost of the system can be significantly reduced.

In the foregoing detailed description of the present invention, only specific embodiments thereof have been described. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

That is, the present invention is not limited to the above-described specific embodiment and description, and various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. And such variations are within the scope of protection of the present invention.

10: Drill
20: rotary workhead
21: projection
22: Shelf
30: Mirror
100: Drill grinding jig
110:
111:
112:
113:
120: horizontal support
121: fastening bolt
130: Stopper
131: Drill contact surface
140: vertical support
141: Shelf contact surface
142: length variable member
S100: Drill grinding method
S110: Jig mounting step
S120: Level support check step
S130: Vertical support check step
S140: Drill fixing step
S150: vertical support position changing step
S160: Mirror identification step

Claims (11)

A drill grinding jig mounted on a rotary workhead having a mounting protrusion protruded by a predetermined height on an outer circumferential surface thereof for guiding the position of the drill,
A mounting portion mounted on a mounting projection formed on an outer circumferential surface of the rotary work head, the mounting portion rotatably mounting a horizontal support on one side;
A horizontal support extending from the mounting portion a predetermined length forward of the rotary workhead;
A stopper rotatably mounted at one end of the horizontal support and having a drill contact surface for contacting one end of the drill mounted on the rotary workhead; And
A vertical support rotatably mounted at one end of the stopper and having a shelf contact surface in contact with an upper surface of the shelf on which the rotary workhead is mounted;
And the drill grinding jig.
The method according to claim 1,
Wherein,
A body portion of a plate-like structure corresponding to a part of an outer circumferential surface of the rotary work head;
A pair of lateral extending portions extending a predetermined length in one direction from the body portion so as to surround a part of the outer circumferential surface of the rotary work head; And
A coupling groove formed in the lateral extension portion;
And the drill grinding jig.
3. The method of claim 2,
Wherein the body portion and the side extension portion have a 'C' shape in a transverse plane.
3. The method of claim 2,
Wherein the coupling groove is a one-side open slit structure in which one end of the coupling groove is in contact with one end of the lateral extending portion and is opened to the outside.
The method according to claim 1,
Wherein the horizontal support base is provided with a length varying member capable of changing an extension length of the horizontal support base.
6. The method of claim 5,
Wherein the horizontal support member is provided with a length measuring member capable of measuring an extension length of the horizontal support.
The method according to claim 1,
Wherein the stopper is coupled to one end of the horizontal support by at least two fastening bolts.
The method according to claim 1,
Wherein the vertical support is provided with a variable length member capable of changing an extension length of the vertical support.
9. The method of claim 8,
Wherein the horizontal support member is provided with a length measuring member capable of measuring an extension length of the horizontal support.
A drill grinding method using a drill grinding jig according to any one of claims 1 to 9,
a) a jig mounting step of mounting and fixing the mounting portion of the drill grinding jig to the mounting projection formed on the outer peripheral surface of the rotary work head;
b) a step of checking the level of the horizontal support after checking the length of the drill to be ground;
c) a number of steps to determine the height of the drill to be ground; a vertical support check step to check the length of the vertical support;
d) a drill fixing step of mounting the drill to be ground on the rotary workhead, confirming the position of the drill using a stopper, and then fixing the drill; And
e) altering the position of the vertical support to avoid interference of the vertical support during the drilling operation;
And a grinding step of grinding the grinding wheel.
11. The method of claim 10,
The drill grinding method includes:
f) a mirror identification step of confirming the opposite state of the drilled grind using a mirror;
And a grinding step of grinding the grinding wheel.

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