KR20170030172A - fixing apparatus for rotated material - Google Patents

fixing apparatus for rotated material Download PDF

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Publication number
KR20170030172A
KR20170030172A KR1020150127380A KR20150127380A KR20170030172A KR 20170030172 A KR20170030172 A KR 20170030172A KR 1020150127380 A KR1020150127380 A KR 1020150127380A KR 20150127380 A KR20150127380 A KR 20150127380A KR 20170030172 A KR20170030172 A KR 20170030172A
Authority
KR
South Korea
Prior art keywords
workpiece
jig
straight pipe
jaws
sectional shape
Prior art date
Application number
KR1020150127380A
Other languages
Korean (ko)
Inventor
민경진
민태홍
권영호
백경탁
Original Assignee
민경진
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 민경진 filed Critical 민경진
Priority to KR1020150127380A priority Critical patent/KR20170030172A/en
Publication of KR20170030172A publication Critical patent/KR20170030172A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/101—Chucks with separately-acting jaws movable radially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • B23Q3/064—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00—Work clamping
    • B23Q2703/02—Work clamping means
    • B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

According to the present invention, a fixing device for a rotating object prevents damage to an outer surface of an object and more firmly supports the object. The fixing device for a rotating object comprises: a rotated chuck; a plurality of jaws supported by the chuck and reciprocating toward a center of the object; and a jig disposed between the jaws and the object to press an outer surface of the object since the jaws are transferred toward the center of the object.

Description

[0001] The present invention relates to a fixing apparatus for rotated material,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary work fixing apparatus, and more particularly, to a rotary work fixing apparatus for fixing a work to be rotated to process the work.

A chuck for firmly fixing the workpiece is used in order to form a thread on the tip of the workpiece, for example, a tube-shaped workpiece, or to cut the tip of the workpiece into a specific shape. The chuck is provided with a plurality of jaws provided to be reciprocable around the workpiece.

Accordingly, the plurality of tanks fix the workpiece by locally pressing the outer surface of the workpiece at a plurality of places, and the workpiece is rotated as the chuck is rotationally driven. The workpiece can be processed in such a manner that the distance between the rotating workpiece and the machining device such as the cutting tool is adjusted.

On the other hand, an apparatus for fixing a workpiece has already been disclosed in "Korean Registered Patent No. 1128235, A Fixture for Abrasive Workpiece Having Rotation Means".

However, in the above-mentioned registered patent, since the chuck is rotationally driven in a state in which the three chambers are locally pressurized at three places of the workpiece, the support state of the workpiece is relatively unstable, and since the three chambers are in direct contact with the workpiece, There is a problem that the outer surface is damaged.

Korean Registered Patent No. 1128235 (Announcement of Mar. 23, 2012)

An object of the present invention is to provide a rotary work fixing apparatus for supporting a workpiece more firmly.

Another object of the present invention is to provide a rotary work fixing apparatus for preventing the outer surface of a workpiece from being damaged.

A rotary work fixing apparatus according to the present invention includes a chuck rotating and driven, a plurality of jaws supported by the chuck and reciprocating toward the center of the workpiece, and a plurality of jaws reciprocally moved toward the center of the workpiece And a jig disposed between the plurality of jaws and the work so as to pressurize the outer surface of the workpiece in accordance with the jig.

The workpiece is in the form of an straight pipe, and the jig has the same inner diameter as the outer diameter of the workpiece and can pressurize the entire outer peripheral surface of the workpiece.

The workpiece is in the form of an straight pipe, and can press a part of the outer peripheral surface of the workpiece with an inner diameter smaller than the outer diameter of the workpiece.

Wherein the workpiece is in the form of a curved tube including a straight tube portion and a bent portion bent and extended from the straight tube portion at a predetermined angle, the jig having a straight tube pressing portion for pressing the straight tube portion and a straight tube portion communicating with the straight tube portion, And may include a bending pressing portion for pressing.

The straight pipe pressing portion is opened toward the processing device for processing the workpiece, and the bending pressing portion can communicate with the straight pipe pressing portion in the direction opposite to the processing device.

The jig can be divided into a plurality of pieces about the workpiece.

In order to prevent the idle rotation of the jig, an engagement groove into which the plurality of jaws are inserted may be formed on an outer circumferential surface of the jig.

The workpiece has a polygonal cross-sectional shape, and the jig may have an inner surface having a polygonal cross-sectional shape corresponding to the cross-sectional shape of the workpiece.

The workpiece may have an irregular cross-sectional shape, and the jig may have an inner surface having an irregular cross-sectional shape corresponding to the outer surface of the workpiece.

The rotary work fixing device according to the present invention is characterized in that the jig disposed between the plurality of tanks fixing the workpiece and the jig disposed between the workpieces presses the outer peripheral surface of the workpiece so as to firmly support the workpiece, And it is possible to prevent the outer circumferential surface of the workpiece from being damaged in advance.

1 is a perspective view showing a rotary work fixing apparatus according to a first embodiment.
Fig. 2 is a cross-sectional view of the rotary work fixing apparatus according to the first embodiment cut along the line I-I 'shown in Fig. 1; Fig.
Fig. 3 is a perspective view showing a coupling relationship between the jig and the workpiece of the rotary work fixing apparatus according to the second embodiment. Fig.
4 is a cross-sectional view of the rotary work fixing device according to the second embodiment cut along the line II-II 'shown in FIG.
5 is a plan view showing a rotary work fixing apparatus according to the third embodiment.
6 is a plan view showing a rotary work fixing apparatus according to a fourth embodiment.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only examples of the present invention, and are not intended to represent all of the technical ideas of the present invention, so that various equivalents and modifications may be made thereto .

Hereinafter, a rotary work fixing apparatus according to the present invention will be described with reference to the accompanying drawings.

First Embodiment

FIG. 1 is a perspective view showing a rotary work fixing apparatus according to a first embodiment, FIG. 2 is a sectional view of a rotary work fixing apparatus according to a first embodiment, taken along the line I-I ' to be.

Referring to Figs. 1 and 2, the rotary work fixing apparatus according to the first embodiment can support the workpiece 10 in the form of an straight line. To this end, the rotary work fixing apparatus according to the first embodiment may include a chuck 110, a plurality of jaws 130, and a jig 150.

The chuck 110 may be rotationally driven for rotation of the workpiece 10. Although not shown, to drive the chuck 110, a power transmission means such as a rotary motor and a rotary pulley, a belt, or the like may be connected to the chuck 110.

The plurality of jaws 130 may be supported on the chuck 110. The plurality of jaws 130 can be reciprocally driven toward the center of the workpiece 10 in order to indirectly press the workpiece 10 through the jig 150. [ The plurality of jaws 130 are fed together toward the center of the workpiece 10 to press the jig 150 to be described later. The plurality of jaws 130 may be formed with stepped portions 131 each of which is recessed toward the center of the workpiece 10 in order to stably support the jig 150. [

The jig 150 can be seated on the plurality of step portions 131. The jig (150) may be formed with a hollow (151) to support the workpiece (10). The hollow 151 may have the same outer diameter as the work 10 or an outer diameter smaller than the outer diameter of the work 10. The jig 150 can be separated around the workpiece 10.

Since the jig 150 is pressed by the plurality of jaws 130, a plurality of jigs 150 separated by the pressing force of the plurality of jaws 130 can press the outer peripheral surface of the workpiece 10 sufficiently.

The inner surface of the hollow 151 can pressurize the outer peripheral surface of the work 10 by the jig 150 pressed by the plurality of jars 130. [ Therefore, the rotary work fixing apparatus according to the first embodiment can more stably support the workpiece 10 to be rotated, and the pressing force provided for fixing the workpiece 10 can be transmitted to the outer surface of the workpiece 10 It is possible to prevent the deformation of the workpiece 10 and the damage to the outer surface thereof.

Since the jig 150 pressing the outer surface of the workpiece 10 is pressed by the plurality of jars 130 as described above, As shown in FIG. However, in order to transmit the rotational force of the plurality of jaws 130 more stably to the jig 150 and prevent idling of the plurality of jaws 130, a plurality of jaws Grooves 153 may be formed.

As described above, the rotary work fixing apparatus according to the first embodiment includes a jig having the same inner diameter as the outer diameter of the workpiece or having a hollow having an inner diameter smaller than the outer diameter of the workpiece, It is possible to pressurize the outer surface of the sheet. Therefore, the rotary work fixing apparatus according to the first embodiment can more firmly support the workpiece to improve the efficiency of the machining process, and prevent the outer surface of the workpiece from being damaged or broken.

Hereinafter, a rotary work fixing apparatus according to another embodiment will be described with reference to the accompanying drawings. Hereinafter, components similar to those of the above-described rotary work fixing apparatus are denoted by the same reference numerals, and detailed description thereof will be omitted. Therefore, components that are not described in detail in the following description will be understood with reference to the appended reference numerals and the above description.

Second Embodiment

FIG. 3 is a perspective view showing a coupling relation between the jig and the workpiece of the rotary work fixing apparatus according to the second embodiment. FIG. 4 is a sectional view of the rotary work fixing apparatus according to the second embodiment taken along the line II- Sectional view taken along line II-II.

3 and 4, the rotary work fixing apparatus according to the second embodiment can support the workpiece 30 in the form of a curved line. That is, the work 30 may be in the form of a bend including a straight pipe portion 31 of an straight pipe shape and a bent portion 33 which is bent and extended from the straight pipe portion 31 to a predetermined angle.

When the work 30 is formed in the shape of a curved tube, the jig 350 may be formed with a through-hole 351 in the form of a curved tube. That is, the inside of the jig 350 may include an intuitive pressing portion 351a for supporting the straight pipe portion 31 and a bending pressing portion 351b. The straight pipe pressing portion 351a is opened toward the processing device for processing the workpiece 30 and the bending pressing portion 351b can communicate with the straight pipe pressing portion 351a in the direction opposite to the processing device.

The jig 350 can be separated around the through hole 351 interlocked with the straight line pressing portion 351a and the bending pressing portion 351b to smoothly receive the workpiece 30 in the form of a curved line.

Since the jig 350 is pressed by the plurality of jaws 130, the plurality of jigs 350 separated by the pressing force of the plurality of jaws 130 can sufficiently press the outer peripheral surface of the work 30 have.

A plurality of jaws 130 are provided on the outer circumferential surface of the jig 350 to transmit rotation force of the plurality of jaws 130 more stably to the jig 350 and prevent idling of the plurality of jaws 130 A plurality of latching grooves 353 to be inserted can be formed.

The jig 350 pressed by the plurality of jaws 130 is passed through the through hole 351 in which the straight pipe pressing portion 351a and the bending pressing portion 351b communicate with each other when the work 30 is formed in the form of a bend, ) Can pressurize the outer peripheral surface of the work 30. Therefore, the rotary work fixing device according to the second embodiment can more stably support the workpiece 30 to be rotated, and the pressing force provided for fixing the workpiece 30 can be transmitted to the outer surface of the workpiece 30 It is possible to prevent the outer surface of the work 30 from being damaged.

As described above, the rotary work fixing apparatus according to the second embodiment includes the jig provided with the straight pipe pressing portion and the bending portion of the work, so that the outer surface of the workpiece in the form of a bend can be pressed. Therefore, the rotary work fixing apparatus according to the second embodiment can more firmly support the workpiece to improve the efficiency of the machining process, and prevent the outer surface of the workpiece from being damaged or broken.

On the other hand, as shown in Figs. 1 to 4, the first and second embodiments describe an embodiment in which the workpiece has an annular cross-sectional shape and an inner surface of the jig is formed in an outer shape of the workpiece have.

Third Embodiment

5 is a plan view showing a rotary work fixing apparatus according to the third embodiment.

Referring to FIG. 5, the workpiece 50 may have a polygonal cross-sectional shape. Accordingly, the rotary work fixing apparatus according to the third embodiment may include a jig 550 in which an inner surface having a polygonal cross-sectional shape corresponding to the cross-sectional shape of the work 50 is formed.

Although the workpiece is illustrated as having a hexagonal shape in FIG. 5, it should not be understood that this limits the shape of the inner surface of the jig 550 of the present invention.

As described above, the rotary work fixing apparatus according to the third embodiment can pressurize a workpiece having a polygonal cross-sectional shape. Therefore, the rotary work fixing apparatus according to the third embodiment can more firmly support the workpiece, thereby improving the efficiency of the machining process and preventing the outer surface of the workpiece from being damaged or broken.

Fourth Embodiment

6 is a plan view showing a rotary work fixing apparatus according to the fourth embodiment.

Referring to FIG. 6, the workpiece 70 may have a non-rectangular cross-sectional shape. Accordingly, the rotary work fixing apparatus according to the fourth embodiment may include a jig 750 on which an inner surface having a non-rectangular cross-sectional shape corresponding to the cross-sectional shape of the work 50 is formed.

As described above, the rotary work fixing apparatus according to the fourth embodiment can pressurize the workpiece having the irregular cross-sectional shape. Therefore, the rotary work fixing apparatus according to the fourth embodiment can more firmly support the workpiece, thereby improving the efficiency of the machining process and preventing the outer surface of the workpiece from being damaged or broken.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

10: Workpiece in the form of an intuition
30: Workpiece in the form of a bend
50: a workpiece having a polygonal sectional shape
70: a workpiece having a cross-sectional shape of an irregular shape
110: Chuck 130: Joe
131: step portion 150, 350, 550, 750: jig
151: hollow 153, 353:
351: through hole 351a: straight pipe pressing part
351b:

Claims (9)

A chuck rotating and driven;
A plurality of jaws supported by the chuck and reciprocating toward the center of the workpiece;
And a jig disposed between the plurality of jaws and the workpiece so as to pressurize the outer surface of the workpiece as the plurality of jaws are conveyed toward the center of the workpiece, .
The method according to claim 1,
The workpiece is in an intuitive form,
The jig
And presses the entire peripheral surface of the workpiece with the same inner diameter as the outer diameter of the workpiece.

The method according to claim 1,
The workpiece is in an intuitive form,
And presses a part of the outer circumferential surface of the workpiece with an inner diameter smaller than the outer diameter of the workpiece.
The method according to claim 1,
Wherein the workpiece is in the form of a curved line including an straight pipe portion and a bent portion bent and extending at a predetermined angle from the straight pipe portion,
The jig
An intuitively pressing portion for pressing the surface of the straight pipe portion;
And a bending and pressing portion that communicates with the straight pipe pressing portion and presses the surface of the bending portion.
5. The method of claim 4,
The straight pipe pressing portion is opened toward a processing device for processing the workpiece,
And the bending pressing portion communicates with the straight pipe pressing portion in a direction opposite to the machining apparatus. The method according to claim 1,
The jig
And a plurality of workpieces are separated from each other around the workpiece.
The method according to claim 1,
Wherein an engagement groove is formed in an outer circumferential surface of the jig to prevent idle rotation of the jig.
The method according to claim 1,
Wherein the workpiece has a polygonal cross-sectional shape,
Wherein the jig is formed with an inner surface having a polygonal cross-sectional shape corresponding to the cross-sectional shape of the workpiece.
The method according to claim 1,
Wherein the workpiece has a cross-sectional shape of an irregular shape,
Wherein the jig is formed with an inner surface having an irregular cross-sectional shape corresponding to an outer surface of the workpiece.
KR1020150127380A 2015-09-09 2015-09-09 fixing apparatus for rotated material KR20170030172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150127380A KR20170030172A (en) 2015-09-09 2015-09-09 fixing apparatus for rotated material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150127380A KR20170030172A (en) 2015-09-09 2015-09-09 fixing apparatus for rotated material

Publications (1)

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KR20170030172A true KR20170030172A (en) 2017-03-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102253325B1 (en) * 2020-03-03 2021-05-18 김옥현 Jig for supporting head of eject pin, apparatus for fabricating eject pin with the same, and method for fabricating eject pin using the apparatus for fabricating eject pin

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101128235B1 (en) 2009-12-30 2012-03-23 박명환 Grinding material fixing jig having rotation device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101128235B1 (en) 2009-12-30 2012-03-23 박명환 Grinding material fixing jig having rotation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102253325B1 (en) * 2020-03-03 2021-05-18 김옥현 Jig for supporting head of eject pin, apparatus for fabricating eject pin with the same, and method for fabricating eject pin using the apparatus for fabricating eject pin

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