KR101664163B1 - Workpiece setting up tool having puching function and method of setting-up and punching work piece using the same - Google Patents

Abstract

A workpiece setting tool having a punching function and a method of setting up and punching a workpiece using the same are provided. The tool comprising: a base arm mounted on a spindle of the machine tool; A rotary arm rotatably coupled to the base arm; A rotary coupling unit coupling the base arm and the rotary arm; And a tip member coupled to an end of the rotary arm and having a pointed tip. Setting up the workpiece by using the setup tool which has been adjusted in the angle of the rotary arm with respect to the base arm after one end of the base arm is mounted on the spindle, A punching operation for forming a groove with a predetermined depth is performed on the work.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workpiece setting tool having a punching function and a workpiece setting and punching method using the same.

The present invention relates to a tool for setting up a workpiece and a method for setting and punching a workpiece using the same.

In order to machine a workpiece using a machine tool, a workpiece set-up operation is performed before machining. The workpiece set-up operation determines the origin of the workpiece and the offset value of the tool.

Conventionally, in order to set up a workpiece, the workpiece is checked from the machining position using a surface gauge (hereinafter referred to as " error value ") of the workpiece placed on the actual machining stage. Thereafter, based on the error value, the worker manually moves the workpiece to the machining position and aligns the workpiece.

After moving the workpiece to the machining position as above, use the center finder to set the coordinate system of the workpiece. When setting the coordinate system of the workpiece, replace the surface gauge and mount the center finder on the tool mounting spindle. Then, the coordinate system of the workpiece is set while the spindle is moved in the X-axis and / or Y-axis direction so that the center finder coincides with the marking line on the workpiece.

When the workpiece setting operation is completed in this manner, the center finder mounted on the spindle of the machine tool is replaced with a tool for machining, and the workpiece is machined.

Conventionally, as described above, an error value between a workpiece machining position and a workpiece position placed on a certain stage is measured using a surface gauge to set up the workpiece, the workpiece is manually moved to a machining position on the basis of the error value, The workpiece set up operation is troublesome and the setup time is increased by performing the operation of setting the coordinate system of the workpiece by replacing the center finder with the center finder again.

Further, conventionally, while the surface gauge or the center finder has a straight shape to confirm the error value of the dome-shaped work (for example, a dome-shaped structure applied to the evaporator of a nuclear power plant) and set the origin coordinates, the curved surface structure of the dome- A gap is created between the surface gauge or the center finder and the marking line of the workpiece and the guide of the surface gauge and the center finder and the error value can not be accurately checked.

In addition, when the surface gauge or the center finder is conventionally formed in a straight shape, it may be relatively short when applied to a dome-shaped workpiece having a large height of a large workpiece, particularly a workpiece, that is, a length in the Z-axis direction.

Also, conventionally, the surface gauge or the center finder is merely manufactured for the purpose of performing a function of setting up a workpiece, and there is a complication of performing a machining operation by replacing with a separate tool for machining a workpiece.

KR10-2012-0045228 KR20-2009-0012564

It is an object of the present invention to provide a workpiece setting tool that shortens the setup time of a workpiece, and a method of setting up and punching a workpiece using the tool.

Another object of the present invention is to provide a workpiece setting tool having a workpiece machining function, for example, a punching function, and a method of setting up and punching a workpiece using the same.

It is still another object of the present invention to provide a workpiece setting tool that prevents collision with a workpiece during a workpiece set-up and increases alignment reliability, and a method of setting up and punching a workpiece using the same.

According to one aspect of the present invention, there is provided a spindle motor comprising: a base arm having a predetermined length so as to be disposed at one end of a spindle of a machine tool and disposed concentrically with the spindle and arranged parallel to a longitudinal center axis of a workpiece to be machined; A rotary arm coupled to the other end of the base arm so as to be rotatable with respect to the base arm at a predetermined angle in a clockwise or counterclockwise direction and tilted with respect to the base arm; A rotary coupling unit coupling the base arm and the rotary arm; And a pointed member coupled to an end of the rotary arm and having a pointed tip.

The rotary coupling unit may include: a bush coupled through the base arm and the rotary arm; A shaft member fitted into the inside of the bush and having a head portion at one end; A fastening member for fastening the base arm and the rotary arm which are pierced and inserted into the shaft member from the other end side of the shaft member and whose angles are adjusted; And a washer member interposed between the head portion of the fastening member.

The head portion of the shaft member may include an angle scale indicating the rotation angle of the rotary arm.

The rotary arm may be provided with a scale indication indicative of the scale during rotation.

The distal end of the tip member may include a material having a hardness higher than that of the workpiece.

The rotary arm may include an inspection portion machined to have a cylindrical outer surface for shake check.

The base arm and the rotary arm may be provided with alignment means for aligning the vertical alignment of the base arm and the rotary arm. The alignment means may include alignment bolts coupled to the rotary arms and the base arms and alignment blocks fixed to the rotary arms and the base arms through the alignment bolts.

According to another aspect of the present invention, a setup tool having a jointed base arm and a rotary arm and having a tip at one end of the rotary arm is mounted on a spindle of a machine tool; Adjusting the angle of the rotary arm with respect to the base arm of the setup tool and then setting up the workpiece; There is provided a workpiece setting and punching method for performing a punching operation for forming a groove having a predetermined depth in the workpiece by using the setup tool without replacing the tool with another tool after the workpiece is set up.

Wherein the workpiece set up aligns the setup tool by rotating the rotary arm by a predetermined angle in a clockwise or counterclockwise direction with respect to the base arm and aligns the set up tool with the set up tool on the X and Y axes of the workpiece machining position And the angle of the setup tool is readjusted by rotating the rotary arm counterclockwise or clockwise by the predetermined angle with respect to the base arm to readjust the angle of the X and Y reference points And a step of calculating the error value between the machining position of the workpiece and the mounting position of the workpiece by bringing the tip of the setup tool into contact with the marking line displayed on the workpiece, Moving the tool to a machining position, contacting the marking lines on the X and Y axes on the workpiece with the setup tool, In may include setting a coordinate system.

The angle adjustment of the base arm and the rotary arm may be performed by first adjusting the rotary angle of the rotary arm by using a scale provided on the coupling portion of the base arm and the rotary arm, And secondary adjustment using a tool.

According to one embodiment of the present invention, the setup tool is configured to simultaneously perform the functions of the surface gauge and the center finder, thereby eliminating the need to replace the surface gauge and the center finder in workpiece alignment. As a result, productivity can be improved by reducing workpiece set-up time.

According to one embodiment of the present invention, when the setup tool includes a base arm and a rotary arm, and the base arm and the rotary arm are jointed to each other to align a large workpiece having a curved surface like a dome- Can be solved.

According to an embodiment of the present invention, the setup tool includes a base arm and a rotary arm, and the base arm and the rotary arm are jointed to each other to precisely position the tip of the setup tool on the marking line of the workpiece when aligning the workpiece, Can be calculated more accurately.

The tip of the setup tool according to an embodiment of the present invention is formed of a material having a hardness higher than that of the workpiece, so that the punching function can be performed. As a result, there is an advantage that the punching operation can be performed immediately without tool replacement after the workpiece is set up.

1 is a side view showing the construction of a workpiece setting tool according to an embodiment of the present invention.
2 is a perspective view showing the construction of a workpiece setting tool according to an embodiment of the present invention.
3 is a side view showing a state in which the workpiece setting tool according to the embodiment of the present invention is vertically unfolded.
Fig. 4 is a partially cut-away sectional view showing the configuration of the rotary coupling unit of Fig. 3 cut away. Fig.
5 is a view for explaining a process of aligning the position of a dome-shaped workpiece using a workpiece setup tool according to an embodiment of the present invention.
6 is a flowchart illustrating a process of performing a workpiece setup and punching operation using a workpiece setup tool according to an embodiment of the present invention.
7 is a flowchart showing the workpiece set up process of FIG.
8 is a flowchart showing the setup tool alignment process of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Each embodiment describes various aspects of the invention. For example, the features described with respect to one embodiment may be used as another alternative to be replaced with another embodiment.

FIG. 1 is a side view illustrating the construction of a workpiece setup tool according to one embodiment of the present invention, and FIG. 2 is a perspective view illustrating a workpiece setup tool according to an embodiment of the present invention.

Referring to Figures 1 and 2, a tool 1 is shown for setting up a workpiece W, e.g., a domed structure for an evaporator of a nuclear power plant. The workpiece W is not limited to a dome type and can be changed into various forms. In the following description, the dome type work W will be described as an example.

The setup tool 1 includes a base arm 3, a rotary arm 5, a tip member 7, a rotary coupling unit 10, and an alignment bolt 21.

The base arm 3 includes a rod member having a predetermined length. One end of the base arm 3 is configured to be attachable to the spindle 9 of the machine tool 8. The base arm 3 is arranged concentrically with the spindle 9 and is arranged in parallel to the longitudinal center axis V of the workpiece W to be machined.

The rotary arm (5) includes a rod member having a predetermined length. One end of the rotary arm 5 is rotatably coupled to the other end of the base arm 3 in a clockwise or counterclockwise direction with respect to the base arm 3 at a predetermined angle?

The tip member (7) is coupled to the other end of the rotary arm (5). The tip member 7 has a pointed tip portion 7a for improving accessibility to the marking line M indicated on the workpiece W. [ The tip portion 7a includes a material having a hardness higher than that of the work W so that the work W can be punched. The tip 7a may comprise, for example, a cemented carbide. The other end of the tip member (7) is projected from the fastening portion (7b) so as to fit inside the rotary arm (5).

The marking groove can serve as a position indication indicating a subsequent machining process, for example, a welding position when the work W is welded.

The base arm 3 and the rotary arm 5 may be coupled to each other in an articulated manner to form an angle with respect to each other. The rotary coupling unit 10 fixes the base arm 3 and the rotary arm 5 which form a certain angle.

The rotary arm 5 rotates around the other end of the base arm 3 in a clockwise or counterclockwise direction at a predetermined angle and the base arm 5 is rotated via the rotary coupling unit 10. [ As shown in FIG.

The setup tool 1 according to an embodiment of the present invention can maintain an angle with respect to the workpiece W as described above. As a result, the setup tool 1 is more effective than the setup of the dome-shaped workpiece W whose surface is curved As shown in Fig.

That is, since the setup tool 1 is configured to form an angle with respect to the work W, the tip of the setup tool 1 can be accurately positioned on the marking line M of the work W. As a result, the reliability of determination of the origin of the work W and the offset value of the tool can be increased.

The marking line M is displayed on the workpiece W as a reference line used when setting up the workpiece W. [ The marking lines M may be arranged at positions of 0, 90, 180, and 270 degrees, for example.

The setup tool 1 according to an embodiment of the present invention can avoid the setup tool 1 from colliding with the curved surface of the workpiece W as it makes a certain angle? .

The setup tool 1 according to an embodiment of the present invention secures a space between the workpiece W and the machine tool 8 on which the spindle 9 is mounted according to a predetermined angle so that the incidence of safety accidents can be reduced.

The setup tool 1 according to an embodiment of the present invention can increase the vertical length of the base arm 3 and the rotary arm 5 when the base arm 3 and the rotary arm 5 are vertically aligned, Can be utilized effectively.

The alignment bolt 21 is for aligning the vertical positions of the base arm 3 and the rotary arm 5 when the base arm 3 and the rotary arm 5 are vertically aligned. (5).

FIG. 3 is an enlarged view showing a state in which a setup tool is vertically unfolded according to an embodiment of the present invention, and FIG. 4 is a partially cutaway sectional view showing the configuration of the rotational coupling unit of FIG.

3 and 4, the base arm 3 and the rotary arm 5 are joined in the form of a joint. To this end, a rotary protrusion 5a is provided at one end of the rotary arm 5, and a protrusion receiving portion 3a having a groove into which the rotary protrusion 5a is fitted is provided at the other end of the base arm 3. [ In another embodiment of the present invention, the base arm 5 may be provided with a rotation projection at the other end, and the rotation arm 5 may be provided with a projection receiving portion at one end thereof.

One end of the base arm 3 is provided with a mounting projection 3c to be mounted on the spindle 9 of the machine tool 8. [ An inspection portion 5d capable of checking the shaking of the setup tool 1 is formed at a part of the rotary arm 5. [ The inspection portion 5d can be machined to have a cylindrical outer surface. The shaking of the setup tool 1 can be checked by bringing the probe of the measurement tool such as a dial gauge into contact with the inspection portion 5d to rotate the setup tool 1. [ This operation is performed before the alignment operation or the punching operation to check the initial alignment state of the setup tool 1. [

The rotary coupling unit 10 includes a bush 11, a shaft member 13, a fastening member 15 and a washer member 17.

The bush 11 passes through the projection receiving portion 3a of the base arm 3 and the rotation projection 5a of the rotary arm 5. [

The shaft member 13 includes a head portion 13b fitted into the inside of the bush 11 and having a graduation 13a on one end side. The head portion 13b is formed to be larger than the outer diameter of the bush 11. The shaft member 13 is fixed at a predetermined position irrespective of the rotating operation of the rotary arm 5 so that the position of the scale 13a is not changed. For this purpose, the shaft member 13 may be configured to be fixed to the base arm 3 via the fixing means 19. [ The fixing means 19 may include a fastening bolt or a fastening pin for fixing the head portion 13a of the shaft member 13 to the base arm 3. [ In another embodiment, the fixing means may include a protrusion or groove formed in the head portion 13a and a groove or protrusion formed in the base arm 3. [

The fastening member 15 fixes the base arm 3 and the rotary arm 5 whose angles are adjusted by being fitted into the shaft member 13 from the other end of the shaft member 13. The washer member 17 is interposed between the base arm 3 and the fastening member 15 to increase the fastening force of the fastening member 15.

A scale indication table 4 indicating a scale 13a is displayed at the center of one side of the rotary arm 5 where the head portion 13b of the shaft member 13 is located.

The base arm 3 and the rotary arm 5 can be vertically aligned by the alignment means. The aligning means includes an alignment block 23 extending along the base arm 3 and the rotary arm 5 via alignment bolts 21 to the base arm 3 and the rotary arm 5. The alignment bolt 21 aligns the vertical angle of the base arm 3 and the rotary arm 5 when the base arm 3 and the rotary arm 5 are aligned in a straight line. In vertical alignment of the base arm 3 and the rotary arm 5, an alignment block 23 having an accurate verticality is used. The alignment block 23 is brought into close contact with one side of the base arm 3 and the rotary arm 5 and then the alignment bolt 21 is aligned with the base arm 3 and the rotary arm 5 using the alignment bolt 21 The block 23 is fixed. As a result, the base arm 3 and one side of the rotary arm 5 are closely contacted with each other on the vertical plane of the alignment block 23, so that the perpendicularity of the base arm 3 and the rotary arm 5 is matched.

Next, an operation of setting up and punching the work W using the setup tool 1 configured as described above will be described.

5 is a view illustrating a process of aligning the position of a dome-shaped workpiece using a setup tool according to an embodiment of the present invention.

5, the solid line display section shows the machining position P1 of the work W and the dotted line display section shows the mounting position P2 in which the work W is shifted from the machining position P1. In the drawing, the X and Y coordinates are based on the machining position P1.

When the work W is placed at the predetermined position P2 for machining the work W, the work W is turned by a predetermined amount in the X and Y axis directions from the machining position P1 so that the work W can be placed. In this case, it is required to accurately align the work W to the machining position P1. To this end, a setup tool 1 according to an embodiment of the present invention is used.

FIG. 6 is a flowchart illustrating a process of performing a workpiece setup and punching operation using a workpiece setup tool according to an embodiment of the present invention, FIG. 7 is a flowchart illustrating a workpiece setup process of FIG. 6, Fig. 8 is a flowchart showing the setup tool alignment process. Fig.

1 and 6, a workpiece set-up and punching method according to an embodiment of the present invention includes a step of mounting a set-up tool 1 (S100), a workpiece setting step S300, and a workpiece punching step S500 do.

The setup tool 1 including the base arm 3 and the rotary arm 5 jointed at the setup tool mounting step S100 and having the tip portion 7 at one end of the rotary arm 5 is inserted into the machine tool (9) of the spindle (8).

The coordinate system of the workpiece is set by determining the origin of the workpiece W and the offset value of the tool using the setup tool 1 mounted on the spindle 9 in the workpiece setting step S300.

In the work punching step (S500), a marking groove having a predetermined depth is formed on the surface of the workpiece W aligned to the machining position through the workpiece set up process using the setup tool (1).

Referring to FIG. 7, the workpiece set-up step S310 includes a setup tool alignment step S310, an X and Y axis reference points for measuring the position of the workpiece W, a step S330, A step S350 of calculating an error value with respect to the mounting position of the work W, a step S370 of moving the work W to the machining position, and a step S390 of setting the coordinate system of the work W.

8, the setup tool aligning step S310 is a step of aligning the rotation angle of the rotary arm 5 with respect to the base arm 3 by using a separate measuring tool (step S311) And a step S313 of secondary adjustment of the angle of the rotary arm 5 adjusted for a difference.

Hereinafter, the workpiece setting and punching operations will be described in more detail.

Referring to Figs. 1 to 3 and Figs. 6 to 8, a setup tool 1 including a base arm 3 and a rotary arm 5 is first mounted on the spindle 9 of the machine tool 8 (S100). Here, the other end of the base arm 3 connected to the rotary arm 5 is fitted to the spindle 9.

The rotation arm 5 of the setup tool 1 mounted on the spindle 9 is rotated clockwise by a predetermined angle? Relative to the base arm 3 to adjust the angle, The base arm 3 and the rotary arm 5 are fixed (S310).

After releasing the fastening bolt 15, the rotary arm 5 is rotated clockwise by a predetermined angle? At this time, the shaft member 13 is fixed by the fixing means 19 and is not rotated but is positioned at a certain position. The scale indication table 4 displayed on the rotary arm 5 indicates the scale 13a displayed on the head portion 13b of the shaft member 13 so that the operator can see the scale 13a of the rotary arm 5, The degree of rotation can be visually confirmed easily.

After rotating the rotary arm 5, the base arm 3 and the rotary arm 5 are fixed by fastening the fastening member 15 to first adjust the angle of the base arm 3 and the rotary arm 5 (S311).

Thereafter, the angle of the rotary arm 5 is precisely checked by using a separate measuring tool D, for example, a dial gauge, and the angles of the base arm 3 and the rotary arm 5 are secondarily adjusted (S313) . In the second adjustment, the dial gauge D is positioned at a predetermined position, and then the probe of the dial gauge is contacted with at least a part of the bottom surface of the tilted rotary arm 5 to check the rotation angle. As described above, the rotation angle of the rotary arm 5 is adjusted by the first adjustment using the scale 13a and the second adjustment using a separate measurement tool D. [

1, 5 to 7, in an embodiment of the present invention, the tip portion 7a of the angle-adjusted set-up tool 1 is moved to a predetermined position on the X axis, Axis reference point X1 for checking an error value in the X-axis direction (S330).

Then, the setup tool 1 is brought into contact with the marking line M displayed on the 180 ° of the work W, and the position of the work M is read. Here, the setup tool 1 is in a state in which the angle of the setup tool 1 is adjusted by rotating the rotary arm 5 in the counterclockwise direction with respect to the base arm 3 by a predetermined angle. That is, the rotary arm 5 is rotated in the opposite direction to the base arm 3 by the rotation angle at the reference point X1 of the work W. Since the angle adjustment of the rotary arm 5 is based on the above-described first and second adjustment methods, a duplicated description will be omitted.

The tip of the tip portion 7a of the setup tool 1 is brought into contact with the marking line M displayed on the 180 ° of the work W to measure the position of the work W at 180 °, The Y direction error value of the workpiece W can be confirmed from the X axis of the position (S350).

The X direction error value of the workpiece W can be ascertained by bringing the tip end 7a of the setup tool 1 into contact with the marking line on the position of the work W at the 90 ° or 270 ° position in the same manner as above. After confirming the X and Y error values of the workpiece W, the workpiece W is moved to the machining position (S370). At this time, the workpiece W can be manually moved by the operator.

The rotary arm 5 of the setup tool 1 is configured to be rotatable at a predetermined angle with respect to the base arm 3 so that the leading end portion 7a can be accurately positioned on the marking line M of the workpiece W . As a result, the error value measurement can be accurately performed, and the workpiece W can be more accurately aligned.

The rotary arm 5 is configured to be rotatable at a predetermined angle with respect to the base arm 3 so as to prevent the setup tool 1 from colliding with the curved surface of the work W, The distance between the workpieces W can be secured, and the incidence of safety accidents during the setup work can be reduced.

For ease of explanation in the above description, the lines on the 0 ° to 180 ° line and the lines on the line on the 90 ° to 270 ° of the work W are defined as the X and Y axes of the machining position P1, respectively. Therefore, the X and Y axes are not limited to the above contents and can be changed.

After the work W is moved to the machining position P1 as described above, the position of the work W is finally confirmed, and then the work W is clamped to a predetermined position.

Next, the tip portion 7a of the set-up tool 1 is brought into contact with any one marking line M on the 0 ° and 180 ° sides of the work W and any one marking line on 90 ° and 270 °, Axis coordinate system (S390).

The base arm 3 and the rotary arm 5 of the set-up tool 1 are angularly adjusted according to positions along the 0 °, 90 °, 180 ° and 270 ° of the work W when the coordinate system is set.

According to the setup tool 1 according to the embodiment of the present invention, since the error value confirmation of the work W and the setting of the coordinate system of the work W are simultaneously performed, the setup time of the work W is greatly shortened .

It has been described that the X and Y axis coordinates of the workpiece W are set using the setup tool 1. It is also possible to set the height of the workpiece W such as the Z axis coordinate Coordinates can be set.

After the work W is set up as described above, an operation of punching the surface of the work W using the setup tool 1 is performed without changing the tool (S390).

The tip portion 7a of the setup tool 1 may include a material having a hardness higher than that of the work W to form a marking groove having a predetermined depth on the surface of the work W. The marking groove can perform a function of post-processing the workpiece W, for example, a position to perform welding. The marking grooves may have a depth of about 1 mm.

In the embodiment of the present invention, the punching operation can be performed using the set-up tool 1, and the process for machining the workpiece can be greatly reduced.

In the punching operation, the angle of the base arm 3 and the rotary arm 5 of the setup tool 1 is adjusted according to the position to be punched. That is, the punching operation can be performed by adjusting the angle of the base arm 3 and the rotary arm 5 to have a predetermined angle, or the punching operation can be performed by aligning the base arm 3 and the rotary arm 5 .

The punching operation can be performed by moving the spindle 8 so that the tip portion 7a of the setup tool 1 presses the surface of the work W with a predetermined force.

After the alignment block 23 is interposed between the alignment bolt 21 and the base arm 3 and the rotary arm 5 at the time of aligning the dates, the alignment bolts 21 are fastened to the base arm 3 and the rotary arm 5, (5).

The setup tool 1 according to an embodiment of the present invention can perform operations of setting up and punching various types of workpieces W other than the domed type. The workpiece set-up operations are each applied differently according to the shape of the workpiece W, and the punching position and method are also changed according to the shape of the workpiece.

Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto but is limited by the following claims. Accordingly, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit of the following claims.

W: Workpiece 1: Setup tool
3: base arm 5: rotary arm
7: advanced member 8: machine tool
9: spindle 10: rotational coupling unit
21: Alignment bolts

Claims (10)

A base arm having one end mounted on a spindle of the machine tool and disposed concentrically with the spindle and having a predetermined length so as to be arranged in parallel with the longitudinal center axis of the workpiece to be machined;
A rotary arm coupled to the other end of the base arm so as to be rotatable with respect to the base arm at a predetermined angle in a clockwise or counterclockwise direction and tilted with respect to the base arm;
A rotary coupling unit coupling the base arm and the rotary arm; And
And a pointed member coupled to an end of the rotary arm and having a pointed tip. The method according to claim 1,
The rotary coupling unit includes:
A bushing penetratingly coupled to the base arm and the rotary arm;
A shaft member fitted into the inside of the bush and having a head portion at one end;
A fastening member for fastening the base arm and the rotary arm, the fastening members being engaged with the shaft member from the other end side of the shaft member and angularly adjusted with respect to each other; And
A washer member interposed between the head portions of the fastening members
The workpiece set up tool comprising: 3. The method of claim 2,
Wherein the head portion of the shaft member is provided with an angle scale indicating a rotation angle of the rotary arm. The method of claim 3,
Wherein the rotary arm is provided with a scale indication indicative of the scale when the rotary tool is rotated. The method according to claim 1,
Wherein the tip of the tip member comprises a material of greater hardness than the workpiece. The method according to claim 1,
Wherein the rotary arm includes an inspection portion machined to have a cylindrical outer surface for shake check. The method according to claim 1,
Wherein the base arm and the rotary arm are provided with alignment means for aligning the vertical alignment of the base arm and the rotary arm,
Wherein the alignment means comprises an alignment bolt coupled to the rotary arm and the base arm,
And an alignment block fixed to the rotary arm and the base arm through the alignment bolts. A base arm having one end mounted on a spindle of the machine tool and disposed concentrically with the spindle and having a predetermined length so as to be arranged in parallel with the longitudinal center axis of the workpiece to be machined; A rotary arm coupled to the other end of the base arm so as to be rotatable with respect to the base arm at a predetermined angle in a clockwise or counterclockwise direction and tilted with respect to the base arm; A rotary coupling unit coupling the base arm and the rotary arm; And a tip member coupled to an end of the rotary arm and having a pointed tip, the method comprising the steps of: setting up and punching a workpiece using a workpiece setup tool,
Mounting the one end of the base arm on the spindle of the machine tool,
Adjusting the angle of the rotary arm with respect to the base arm of the setup tool and then setting the workpiece in contact with the surface of the workpiece with the tip of the pointed member of the angle-adjusted setup tool;
And performing a punching operation for forming a groove of a predetermined depth in the workpiece using the setup tool without replacing the tool with another tool after the workpiece is set up. 9. The method of claim 8,
The workpiece set up aligning the setup tool by rotating the rotary arm by a predetermined angle in a clockwise or counterclockwise direction with respect to the base arm;
Setting the X and Y axis reference points for measurement by moving the setup tool adjusted to the predetermined angle on the X and Y axes of the workpiece machining position;
The angle of the setup tool is readjusted by rotating the rotary arm counterclockwise or clockwise by the predetermined angle with respect to the base arm, and then the angle of the marking line on the workpiece, which is 180 ° from the X, Calculating an error value between the machining position of the workpiece and the mounting position of the workpiece by contacting the tip of the setup tool;
Move the workpiece to the machining position on the basis of the error value;
And setting the coordinate system of the workpiece while contacting the marking lines on the X and Y axes on the workpiece with the setup tool. 10. The method of claim 9,
Wherein the angle adjustment of the base arm and the rotary arm is performed by first adjusting the rotation angle of the rotary arm by using a scale provided on the coupling portion of the base arm and the rotary arm,
And secondarily adjusting the rotational angle of the rotary arm using a separate measuring tool.

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