KR101563990B1 - Jig for fixing inside diameter of work piece - Google Patents

Jig for fixing inside diameter of work piece Download PDF

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Publication number
KR101563990B1
KR101563990B1 KR1020150112543A KR20150112543A KR101563990B1 KR 101563990 B1 KR101563990 B1 KR 101563990B1 KR 1020150112543 A KR1020150112543 A KR 1020150112543A KR 20150112543 A KR20150112543 A KR 20150112543A KR 101563990 B1 KR101563990 B1 KR 101563990B1
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KR
South Korea
Prior art keywords
shaft
hole
groove
coupling
bevel gear
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Application number
KR1020150112543A
Other languages
Korean (ko)
Inventor
이병문
Original Assignee
(주)강림나노텍
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Priority to KR1020150112543A priority Critical patent/KR101563990B1/en
Application granted granted Critical
Publication of KR101563990B1 publication Critical patent/KR101563990B1/en

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    • 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
    • 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
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • 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

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

Abstract

The present invention is characterized in that a table is provided in which a first shaft receiving groove is formed in a longitudinal direction of one side of an upper surface of a table, A rotating shaft having a handle formed on an outer periphery thereof and having a supporter fixed to both ends of the table top so as to rotate idly on both sides of the table; And an insertion hole extending horizontally through the center of the insertion hole. The insertion hole has a groove formed in an upper portion and a lower portion of the inner surface of the insertion hole in a longitudinal direction of the insertion hole, and an inclined surface And the engaging piece formed in the longitudinal direction at both ends of the lower surface and the first shaft receiving groove of the table, A second shaft receiving groove formed in the longitudinal direction and having a thread on the inner circumferential surface, an upper surface opened and an installation groove formed therein, and a through hole having a predetermined width on the bottom surface of the installation groove facing the second shaft receiving groove A rotary shaft which is provided in the support portion mounting groove and rotates across both sides of the installation groove; and a rotary shaft which is bundled with the rotary shaft and coaxially disposed with the rotary shaft so as to be exposed through the through hole, A first rotating body including a ring-shaped gear wheel having worm wheel teeth formed on an outer circumferential surface thereof so as to rotate in engagement with a thread of the rotating shaft, and a first bevel gear coupled to the rotating shaft at one side of the gear wheel, A second bevel gear provided on the support portion mounting groove and adapted to rotate in engagement with the first bevel gear of the first rotating body, A second rotating body connected to the support shaft and having a first coupling hole formed on the inner circumferential surface and horizontally penetrating through a predetermined length from the center to the inside of the other coupling shaft, A moving tab is formed in an upper portion and a lower portion of one side of the outer circumferential surface so as to be engaged with the groove formed in the inner circumferential surface of the insertion hole while passing through the fitting portion insertion hole of the support portion, An intermittent tab protruding from an outer periphery of an end of an end portion of the body portion extending outward from the insertion hole of the tight fitting portion, and an inner side portion passing through the center of one end portion of the intermittent tab, A coupling shaft having a second coupling hole horizontally penetrated by the coupling shaft; and a coupling groove formed on one surface of the coupling shaft so as to engage with the intermittent tab of the moving shaft, When the intermittent tab of the moving shaft is coupled to the base binding groove, a third coupling hole penetrating through the coupling groove is formed on the other surface, and is fastened and fixed to the second coupling hole of the moving shaft through the third coupling hole using the coupling bolt, And a plurality of holes are formed in the fixing holes of the fixing portion, and the fixing holes are divided into a plurality of divided portions while being coupled to the fixing holes of the fixing portion, And an expanding vane having an inclined inner surface portion to be in close contact with an inclined surface of the support portion and an outer surface portion to grip an inner diameter of the workpiece at an upper portion of the inner surface portion, The workpiece inner diameter fixing jig is made up of a widening body to which the workpiece is fixed.

Description

JIG FOR FIXING INSIDE DIAMETER OF WORK PIECE [0002]

The present invention relates to a jig for fixing an inner diameter of a workpiece, and more particularly, to a jig for fixing an inner diameter of a workpiece, and more particularly to a jig for fixing a workpiece having an inner diameter different for each part or fixing a plurality of workpieces, And a jig for fixing the workpiece inner diameter.

Generally, a machine tool for machining a workpiece fixes the workpiece to a die via a fixing device. The fixing of such a workpiece is made up of two encounters which are capable of adjusting mutual separation distances and are capable of holding one side and the other side of the workpiece A vise or a jig is applied. These general vices are classified into manual, electric or hydraulic types. However, such a manual, electric, or hydraulic vise also has two encounters almost as described above.

However, conventionally, when at least one workpiece is multi-faced or beveled using a machine tool, it is difficult to select a fixed position when machining a single workpiece having a different time interval and inner diameter due to a change in the machining position of the workpiece, And a large number of workpieces can not be machined at the same time, resulting in deterioration of productivity and difficulty in mass production of workpieces.

In addition, there has been a problem that the quality of the workpiece is lowered due to the generation of defective products, and the manufacturing cost of the workpiece is increased.

Korean Patent No. 1480918 (entitled "Workpiece inner diameter gripping device")

The present invention is characterized in that a widening body having widening vanes provided on both sides of a table of a machine tool is provided to support the inner diameter of the workpiece on the outer periphery of the widening body, An object of the present invention is to provide a fixture for fixation of an inner diameter of a work.

The present invention relates to a table having a first axis receiving groove formed in a longitudinal direction on one side of a top surface,

A rotatable shaft having a thread formed on an outer periphery thereof and having a handle at one end thereof and a supporter fixed to both ends of the upper portion of the table so as to receive the outer circumferential surfaces of both sides of the table,

The table is provided on both sides of the upper portion of the table, and each support portion is protruded at a predetermined length on one side facing each other to form an insertion hole horizontally passing through the center, A fastening portion formed on the outer circumferential surface in a longitudinal direction, a fastening portion formed on the outer circumferential surface in a longitudinal direction at both ends of the fastening portion, and a fastening groove formed in the longitudinal direction of the fastening portion, A support shaft having a second shaft receiving groove formed therein and an upper surface opened to form a mounting groove therein and a through hole having a predetermined width formed in a bottom surface of the mounting groove facing the second shaft receiving groove;

A rotary shaft which is provided in the support portion mounting groove and is rotatable across both sides of the installation groove; a threaded portion of the rotary shaft which is coupled to the rotary shaft and coaxially disposed with the rotary shaft so as to be located in the installation groove- A first rotating body having a ring-shaped gear wheel having worm wheel teeth formed on an outer circumferential surface thereof to rotate in engagement with the first bevel gear, and a first bevel gear coupled to the rotating shaft at one side of the gear wheel and disposed coaxially with the rotating shaft,

A second bevel gear formed on the support portion mounting groove to rotate in engagement with the first bevel gear of the first rotatable member, the first bevel gear being connected to one surface of the second bevel gear by a support shaft, And a rotation guide part having a first coupling hole formed horizontally through a predetermined length from the center to the inner side while being connected and having a screw thread formed on the inner peripheral surface,

A moving tab is formed in an upper portion and a lower portion of one side of the outer circumferential surface so as to be engaged with the groove formed in the inner circumferential surface of the insertion hole while passing through the fitting portion insertion hole of the support portion, An intermittent tab protruding from the outer periphery of an end portion of the body portion extending outside the insertion hole of the tight fitting portion and a body portion extending through the center of one end portion of the intermittent tab, A moving shaft having a second fastening hole formed horizontally inward,

A third fastening hole penetrating through the fastening groove is formed on the other surface when the intermittent tab of the moving shaft is fastened to the fastening groove so that the intermittent tab of the moving shaft is engaged, A fixing part which is fastened to the second fastening hole of the moving shaft through the hole and penetrates the other surface of the fastening hole on the other surface and is formed with a plurality of circumferentially spaced fastening holes and is fastened to the fastening hole of the fastening part, An annular inner surface portion which is formed at a lower portion of the lower portion so as to be pivotable by engaging with the engaging hole of the fixing portion and which is in contact with the inclined surface of the supporting portion and an outer surface portion which is formed on the upper surface of the inner surface portion to grip the inner diameter of the workpiece, (EN) A workpiece inner diameter fixing jig which is composed of a widening body which is installed in a columnar shape in correspondence with a plurality of coupling holes of a fixing part.

In the present invention, the supporting portion is moved by the rotation of one rotating shaft so as to closely fix the inner diameters of the workpieces, and the widening wings of the widening body are expanded to fix the inner diameter of the workpiece so that the surface polishing of the workpiece, It has the advantage of being able to.

1 is a perspective view of a fixture for fixing an inner diameter of a work according to an embodiment of the present invention;
[0001] The present invention relates to a jig for fixing an inner diameter of a work,
FIG. 3 is an assembled structure in which a supporting portion is installed on a table in a fixture for fixing an inner diameter of a work according to an embodiment of the present invention. FIG.
FIG. 4 is a front perspective view (a) and a bottom perspective view (b) of a support portion in a fixture for fixing an inner diameter of a work according to an embodiment of the present invention.
FIG. 5 is a perspective view of a first, a second rotation, and a widening body installation structure provided at one side support portion of a jig for fixing an inner diameter of a work according to an embodiment of the present invention.
FIG. 6 is a first and a second set-up view of an installation groove of a support portion in a work fixture inner diameter fixing jig according to an embodiment of the present invention; FIG.
7 is a perspective view of a first rotary installation structure of a jig for fixing an inner diameter of a work according to an embodiment of the present invention.
FIG. 8 is a structural view of a rotary shaft and a gear wheel of a first rotating body in a fixture for fixing an inner diameter of a work according to an embodiment of the present invention; FIG.
FIG. 9 is a perspective view of a support portion in a jig for fixing an inner diameter of a work according to an embodiment of the present invention, in which a worm wheel tooth of a gear wheel is exposed to the through hole; FIG.
10 is a front perspective view (a) and a sectional view (b) of a second rotary body in a jig for fixing a work inner diameter according to an embodiment of the present invention.
FIG. 11 is an assembled structure of a jig for fixing a workpiece inner diameter according to an embodiment of the present invention, in which a moving shaft connected to a body tube is installed in a second rotating body.
FIG. 12 is an assembled structure of a jig for fixing an inner diameter of a work according to an embodiment of the present invention, in which a moving shaft is bound to a rotation inducing portion first fastening hole of a second rotating body. FIG.
13 is a cross-sectional assembly structure of a jig for fixing an inner diameter of a work according to an embodiment of the present invention, in which a moving shaft is coupled to a first coupling hole of a rotation inducing part of a second rotating body.
FIG. 14 is an assembly view of a jig for fixing an inner diameter of a workpiece according to an embodiment of the present invention, in which a moving shaft is passed through a tight fitting hole of a supporting portion. FIG.
15 is a perspective view (a) and a sectional view (b) of a moving shaft in a work fixture inner diameter fixing jig according to an embodiment of the present invention.
16 is an assembled structure of a moving shaft and a widening body in a work fixture inner diameter fixing jig according to an embodiment of the present invention.
17 is an assembled structure of a widening body in a jig for fixing an inner diameter of a work according to an embodiment of the present invention.
18 (a) and 18 (b) are a perspective view and a perspective view, respectively, of a fixed body front perspective view and a rear perspective view of a widening body in a workpiece inner diameter fixing jig according to an embodiment of the present invention,
FIG. 19 is a structural view of a rotary shaft, a first, a second rotary, a moving shaft, and a widening body in a jig for fixing an inner diameter of a work according to an embodiment of the present invention;
FIG. 20 (a) and FIG. 20 (b) show the first and second inner diameters of the workpiece in the jig for fixing the workpiece inner diameter according to one embodiment of the present invention;
21 is an assembled structure of a jig for fixing an inner diameter of a work according to an embodiment of the present invention, in which a blocking member is provided in a first rotating body.
22 is a structural view of a jig for fixing an inner diameter of a work according to an embodiment of the present invention, in which a blocking member of a first rotating body is installed.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to the drawings.

Note that the same or corresponding portions in the drawings are denoted by the same reference numerals and the description thereof will not be repeated.

A jig (10) for fixing a workpiece for fixing a workpiece for machining a cylindrical workpiece, such as a grinding wheel, a hole or the like, wherein the jig (10) And the inner diameter of both sides of the cylindrical workpiece 20 are closely contacted with each other to grasp the workpiece 20 and fix it between the support portion 300 and the support portion 300. [

1 to 18, each of the first and second shaft receiving grooves 110 is formed in the longitudinal direction of one side of the upper surface of the upper surface, (100)

A supporter 120 fixed to both ends of the upper portion of the table 100 is installed to receive the outer circumferential surfaces of both sides so as to be idle in the first shaft receiving groove 110 of the table 100, A rotary shaft 200 having a handle 210 at one end thereof,

Each of the supporting portions 300 is installed on both sides of the upper portion of the table 100 and has an insertion hole 311 protruding at a predetermined length on one side of the supporting portion 300, A groove 310 is formed in the upper and lower portions of the inner circumferential surface of the insertion hole 311 in the longitudinal direction of the insertion hole 311 and the groove 310 is formed on the outer circumferential surface of the tightening portion 310, The second shaft receiving groove 320 formed in the longitudinal direction of the first shaft receiving groove 110 and having the thread 321 formed on the inner circumferential surface of the first shaft receiving groove 320 and the upper surface of the second shaft receiving groove 320, A supporting portion 300 having a mounting hole 330 formed therein and having a through hole 331 formed in a bottom surface of the mounting hole 330 facing the second shaft receiving groove 320,

A rotating shaft 410 which is provided in the mounting groove 330 of the supporting part 300 and rotates across the inside of the mounting groove 330 and a rotating shaft 410 which is coupled to the rotating shaft 410 and coaxially arranged with the rotating shaft 410 Shaped gear 421 having worm wheel teeth 421 formed on the outer circumferential surface thereof so as to be engaged with the threaded line 201 of the rotary shaft 200 exposed through the through hole 331 while being positioned in the through hole 331 of the installation groove 330, A first rotating body 400 including a wheel 420 and a first bevel gear 430 coupled to the rotating shaft 410 at one side of the gear wheel 420 and disposed coaxially with the rotating shaft 410,

A second bevel gear 510 is provided in the support groove 300 and rotates in engagement with the first bevel gear 430 of the first rotating body 400, (532) formed on an inner circumferential surface of the support shaft (520) and horizontally penetrating the support shaft (520) at a predetermined length from one end to the other end of the support shaft (520) A second rotating body 500 formed of a rotation inducing part 530 formed with a rotating shaft 531,

The upper end of the supporting part 300 is inserted into the insertion hole 311 of the support part 300 so as to be engaged with the groove 313 formed in the inner circumferential surface of the insertion hole 311, A body portion 622 having a predetermined lengthwise direction formed on the other side of the outer circumferential surface so as to be engaged with the first fastening hole 531 of the rotation inducing portion 530 of the second rotating body 500, An intermittent tab 610 protruding from an outer periphery of an end portion of a body portion 620 extending to the outside of the insertion hole 311 of the tight fitting portion 310 and a body portion 620 passing through the center of one end of the intermittent tab 610, A moving shaft 600 having a second fastening hole 611 penetrating horizontally inside the part 620,

A coupling groove 711 is formed on one surface of the movable shaft 600 so as to engage with the intermittent tab 610 and when the intermittent tab 610 of the moving shaft 600 is coupled to the coupling groove 711, A third fastening hole 712 penetrating through the groove 711 is formed and fastened to the second fastening hole 611 of the moving shaft 600 through the third fastening hole 712 using the fastening bolt 730 And is coupled to the fixing hole 713 of the fixing portion 710 and is divided into a plurality of divided portions 710 while being fixed to the fixing portion 710. The fixing portion 710 is formed with a plurality of coupling holes 713 spaced from each other in the circumferential direction, And a hook 721 is formed at one side lower portion so as to be coupled to the coupling hole 713 of the fixing portion 710 so as to be brought into close contact with the inclined surface 312 of the close portion 310 of the supporting portion 300 A widening blade 720 having an inclined inner surface portion 722 and an outer surface portion for gripping an inner diameter of the workpiece 20 is formed on the upper portion of the inner surface portion 722, Is corresponding to haphol provides a workpiece inner diameter fixing jig 10 to be configured as expansion tube 700, which is installed in a cylindrical shape.

As shown in FIGS. 2 to 3, latching grooves 101 are formed at both ends of the table 100 in the longitudinal direction, and support portions 300 are provided on both sides of the upper surface of the table 100, The latching pieces 301 are coupled to both sides of the supporting part 300 corresponding to the supporting parts 300 and the sliding part.

A first shaft receiving groove 110 is formed in the center of the table 100 and a rotating shaft 200 having a thread 201 formed on the outer circumference of the first shaft receiving groove 110 And the supporter 120 is fixed to both ends of the first shaft receiving groove 110 so that the rotating shaft 200 is inserted into the first shaft receiving groove 110 110 and the outer circumferential surface of the rotary shaft 200 accommodated in the first shaft receiving groove 110.

As shown in FIG. 2, the lower portion of the rotary shaft 200, that is, the upper portion of the rotary shaft 200, The upper surface of the rotary shaft 200 protrudes to the upper portion of the first shaft receiving groove 110 and the upper surface of the rotary shaft 200 is connected to one end of the rotary shaft 200 The supporter 120 which rotates the formed handle 210 to rotate the rotary shaft 200 and binds the rotary shaft 200 is fixed to both ends of the first shaft receiving groove 110 to rotate the rotary shaft 200 So that the rotating shaft 200 rotating at this time idles at the inner circumferential surface of the first shaft receiving groove 110.

A step 202 protruding outwardly is formed on the outer periphery of both ends of the shaft of the rotary shaft 200. The step 202 is passed through a supporter 120 fixed to both ends of the table 100, 120 so that the first shaft receiving groove 110 of the table 100 freely idly rotates by the rotation of the rotating shaft 200.

3, 4 and 14, the supporting part 300 is formed with latching pieces 301 on both sides of the supporting part 300 corresponding to the latching groove 101 of the table 100, A second shaft receiving groove 320 corresponding to the first shaft receiving groove 110 of the table 100 is formed at one side of the lower surface of the table 100, A through hole 331 having a predetermined width through the bottom of the mounting groove 330 facing the shaft receiving groove 320 is passed through the second shaft receiving groove 320 with a predetermined length, A supporting portion 300 provided at both sides of the insertion hole 311 is protruded at a predetermined length on one side facing each other and has an insertion hole 311 horizontally penetrating the center, A groove 313 is formed in the longitudinal direction of the body 311 and a tight fitting portion 310 is formed on the outer circumferential surface to form the inclined face 312.

The upper portion of the rotating shaft 200 accommodated in the first shaft receiving groove 110 of the table 100 is coupled to the lower surface of the supporting portion 300 to be rotated by the rotation shaft 200, Is formed.

4 (b), the through hole 331 penetrates through the center of the second shaft receiving groove 320 so as to communicate with the inside of the mounting groove 330, and the second shaft receiving groove 320 A thread 321 is formed in the second shaft receiving groove 320 excluding the through hole 331 of the rotary shaft 200 so as to be engaged with the thread 201 of the rotary shaft 200 and to be rotated by the rotation of the rotary shaft 200 .

The upper outer peripheral surface of the rotary shaft 200 is received in the second axial receiving groove 320 of the supporting part 300 and the thread 321 formed on the inner peripheral surface of the second axial receiving groove 320 is inserted into the outer peripheral surface of the rotary shaft 200 The supporting portion 300 is moved forward or backward by the threads 201 and 321 which are engaged with each other by the rotation of the rotary shaft 200. [

At this time, the engaging pieces 301 formed at both ends of the lower surface of the supporting part 300, which serves as a guide to move the supporting part 300 forward or backward, are coupled to the engaging groove 101 formed at both ends of the upper surface of the table 100 The rotation of the rotary shaft 200 enables the support 300 to move forward or backward.

2, the rotation direction of the thread 201 formed on the outer circumferential surface up to one end with respect to the blocking protrusion 203 formed at the center of the rotation shaft 200 is set to the other end with respect to the blocking protrusion 203 as a reference And the rotational directions of the threads 201 of the outer circumferential surfaces of the opposite sides are different from each other with respect to the rotational direction of the screw thread 201 formed on the outer circumferential surface, The support portions 300 coupled to both sides of the rotary shaft 200 are closed by the rotation of the rotary shaft 200 in one direction and the rotation of the rotary shaft 200 in the other direction causes the two side supports 300 300 are widened.

A concave blocking groove 111 is formed in the inner peripheral surface of the center of the first shaft receiving groove 110 of the corresponding table 100 while receiving the blocking protrusion 203 formed on the outer circumference of the rotary shaft 200 When the rotary shaft 200 is seated in the first shaft receiving groove 110 of the table 100, the blocking jaw 203 of the rotary shaft 200 is inserted into the first shaft receiving groove 110 of the table 100, And is engaged with the cutout groove 111 to serve as a guide for the rotation of the rotary shaft 200.

The cover part 302 covering the opened upper part of the support part 300 is provided and the first and second rotors 400 and 500 to be described later in the installation part 330 of the support part 300, 600 are installed, the cover part 302 is installed.

3, 5, and 6, in the first and second rotors 400 and 500 provided in the mounting groove 330 of the supporter 300, rotation of the rotatable shaft 200 A first rotating body 400 including a rotating gear wheel 420 and a first bevel gear 430 rotating coaxially with the rotating shaft 410 by the gear shafts 420; And a second rotating body 500 integrally formed with the second bevel gear 510, the supporting shaft 520, and the rotation inducing unit 530, which rotate in engagement with the first bevel gear 430 of the first bevel gear 430.

6 and 7, the first rotating body 400 includes a gear wheel 420 coupled to a rotating shaft 410 and a first bevel gear 430. The rotating shaft 410 supports a supporting portion The supporter 440 is installed on the inner surface or the outer surface of the installation groove 330 so that the rotary shaft 410 rotates freely at both ends of the rotary shaft 410 at this time, , And the rotation shaft (410) is freely rotated by the supporters (440) provided at both ends.

8, the gear wheel 420 bound to the rotation shaft 410 is coupled to the worm wheel tooth 421 on the outer circumference to rotate with the worm wheel 201 of the rotation shaft 200, The gear wheel 420 coupled to the rotating shaft 410 corresponds to the through hole 331 in the mounting groove 330 and the lower portion of the gear wheel 420 is exposed through the through hole 331 as shown in FIG. The worm wheel teeth 421 formed on the lower portion of the gear wheel 420 engage with the upper screw thread 201 of the rotary shaft 200 accommodated in the first shaft receiving groove 110 of the table 100.

Thus, the rotation of the rotation shaft 200 causes the gear wheel 420 to rotate and the rotation axis 410 to coaxially rotate.

The first bevel gear 430 coupled to the rotating shaft 410 of the gear wheel 420 is rotated by the coaxial rotation of the rotating shaft 410.

5, 6, and 10, the second rotating body 500 includes a second bevel gear 510 and a second bevel gear 510 so as to be engaged with the first bevel gear 430 of the first rotating body 400, And is connected to one end of the second bevel gear 510 by a support shaft 520. The other end of the second bevel gear 510 is connected to one end of the support shaft 520 and horizontally penetrates from the center to a predetermined length horizontally, And a rotation inducing part 530 having a first fastening hole 531 formed therein.

The second bevel gear 510 engaged with the first bevel gear 430 is rotated by the rotation of the first bevel gear 430 so that the second bevel gear 510 rotates, The support shaft 520 and the rotation inducing part 530 rotate at the same time.

The supporter 540 is fixed to the bottom surface of the mounting groove 330 to support the support shaft 520 to induce free rotation of the second rotating body 500, It serves to rotate and support.

A supporter 540 for guiding the free rotation of the second rotating body 500 with the support shaft 520 supported thereon is provided with a supporter 540 on the outer circumferential surface of the supporter shaft 520, (Not shown) is formed so as not to be detached to the outside of the supporter 540.

12, the supporter 540 includes a vertical plate 541 on the upper side and a horizontal plate 543 connected to the lower end of the vertical plate 541, and a support shaft 520 The supporter 540 supports the second rotating body 500 by the passage of the supporting shaft 520 and rotates the second rotating body 500 while rotating the second rotating body 500. At this time, The horizontal plate 543 connected to the lower end of the vertical plate 541 of the supporter 540 is fastened to the bottom surface of the installation groove 330 by fastening means (not shown) .

The support shaft 520 is supported by the supporter 540 on the support shaft 520 passing through the hole 542 of the vertical plate 541 of the supporter 540, It will be apparent that a protruding jaw or stepped jaw is formed that interrupts the supporter 540 in the support shaft 520 so as not to be detached.

11 to 15, the rotation inducing part 530 of the second rotating body 500 is screwed to the first fastening hole 531 and moved in the inner longitudinal direction of the first fastening hole 531 The moving shaft 600 includes a body portion 620 having a predetermined length and an intermittent tab 610 protruding in a ring shape at an end portion of the body portion 620. The body portion 620 has a predetermined length A moving tab 622 is formed on the upper and lower surfaces of the outer circumferential surface, and a thread 621 is formed on the outer circumferential surface of the body portion 620 in the predetermined longitudinal direction on the other side.

The length of the other side of the body portion 620 in which the screw 621 is formed on the outer circumference in the longitudinal direction of the other side of the body portion 620 is longer than the length of the body portion 620 in the first fastening hole 530 formed in the rotation inducing portion 530 of the second rotating body 500 (531) and has the same length as the internal length of the first fastening hole (531).

A second fastening hole 611 penetrating through the center of one side of the intermittent tab 610 and horizontally penetrating the inside of the body portion 620 is formed and a thread is formed on the inner surface of the second fastening hole 611 do.

20A, the body portion 620 of the moving shaft 600 passes through the insertion hole 311 of the contact portion 310 of the support portion 300 and is formed on one outer peripheral surface of the body portion 620 The moving tab 622 is inserted into the inner circumferential groove 313 of the insertion hole 311 and passes through the body portion 620 in the first coupling hole 531 of the rotation inducing portion 530 of the second rotating body 500, The rotation of the second rotating body 500 causes the rotation of the second rotating body 500 to be coupled to the first coupling hole 531 of the rotation inducing part 530, The other end of the body portion 620 of the moving shaft 600 is screwed to move the moving shaft 600 into the first fastening hole 531 of the rotation inducing portion 530.

When the second bevel gear 510 of the second rotating body 500 simultaneously rotates, the rotation inducing unit 530 is rotated so that the first concave hole 531 of the rotation inducing unit 530 is coupled to the body of the moving shaft 600 The reason why the moving shaft 600 is linearly moved without rotating the moving shaft 600 while the screw shaft 621 formed on the outer circumferential surface of the other portion 620 is screwed is that the moving shaft 600 is moved in a straight line without rotating, The moving tab 622 formed on the outer circumferential surface of one side of the body portion 620 of the moving shaft 600 is bound to the groove 313 formed on the inner circumferential surface of the insertion hole 311 of the fastener 310 of the supporting portion 300, The second rotating body 500 is rotated by the rotation of the moving shaft 600 while being screwed to the outer circumferential surface of the other side of the body portion 620 of the moving shaft 600 and the first coupling hole 531 of the rotation inducing unit 530 of the whole body 500, ) In a straight line.

The rotation of the second rotating body 500 in one direction, that is, the rotation of the rotating shaft 200 in one direction makes the distance between the supporting part 300 and the supporting part 300 close to each other, The moving shaft 600 moves in a straight line while the moving shaft 600 is screwed into the first fastening hole 531 of the rotation inducing unit 530 of the rotation guide unit 530. On the other hand, The moving shaft 600 is moved in a straight line in the opposite direction to the moving shaft 600 moved into the first fastening hole 531.

As shown in FIGS. 16 to 18, the expanding wing 720 is connected to the tightening part 310 of the support part 300 and is divided into a plurality of parts, and the expanding wing 720 is pivotally supported so as to be expanded. The securing portion 710 is configured such that the intermittent tab 610 of the moving shaft 600 is engaged with the securing portion 710 of the fixed body 710 that binds the intermittent tab 610 of the shaft 600, A third fastening hole 712 penetrating through the fastening groove 711 is formed on the other surface when the intermittent tab 610 of the moving shaft 600 is fastened to the fastening groove 711, And are fastened and fixed to the second fastening holes 611 of the moving shaft 600 through the third fastening holes 712 by using fastening bolts 730. The fastening bolts 730 are inserted into the second fastening holes 611 of the moving shaft 600, A coupling hole 713 is formed.

The intermittent tab 610 of the moving shaft 600 is received in the one coupling groove 711 of the fixing portion 710 and communicated with the coupling groove 711 so that the other third coupling hole 712 of the fixing portion 710, The second fastening hole 611 of the moving shaft 600 exposed in the fastening groove 711 is fastened to the fastening portion 710 and fastened to the fastening portion 710 through the fastening bolts 730.

The coupling groove 711 of the fixing portion 710 receives the intermittent tab 610 of the moving shaft 600 and the other third coupling hole 712 is passed through the center of the one coupling groove 711, The second fastening hole 611 of the moving shaft 600, which is in contact with the third fastening hole 712, is exposed.

A plurality of divided widening vanes 720 are provided in a circumferential direction while being coupled to a coupling hole 713 formed in a circumferential direction and spaced apart from one surface of the fixing portion 710, A ring 721 is coupled to a hinge shaft 714 connected to the coupling hole 713 at one side of the expansion wing 720 and the expansion wing 720 is expanded and rotated about the hinge shaft 714 do.

17 and 20A, the expanding vane 720 includes an inclined inner surface portion 722 and an inner surface portion 722 that are in contact with the inclined surface 312 of the contact portion 310 of the support portion 300, 722 so as to grip the inner diameter of the work 20.

As shown in FIGS. 19 and 20 (a) and 20 (b), when the second rotating body 500 rotates, the moving shaft 600 is rotated by the first fastening part 530 of the rotation inducing part 530 of the second rotating body 500 The fixing unit 710 is moved to the inside of the hole 531 and at the same time the fixing unit 710 connecting the end of the moving shaft 600 is moved to the fixing unit 310 of the supporting unit 300 and is simultaneously connected to the outside of the fixing unit 710 The inner surface portion 722 of the expanding vane 720 is moved along the inclined surface 312 of the slanting portion 310 of the supporting portion 300 while the expanding blade 720 is formed on the outer surface of the slanting surface 712 of the slanting portion 310 The expanding blade 720 is expanded along the inclined surface 312 of the tight fitting portion 310 with the hinge shaft 714 of the fixing portion 710 as a reference.

At this time, the inner diameter of the workpiece 20 is closely contacted with the outer surface 723 of the wing 720, and the inner diameter of the workpiece 20 is tightly contacted to fix the workpiece 20.

Next, a method of fixing a workpiece using the jig for fixing the workpiece inner diameter according to the present invention will be described in detail with reference to Figs. 1, 19 and 20.

The handle 210 of the rotary shaft 200 is rotated to rotate the support unit 300 so as to rotate the handle 210 of the rotary shaft 200 after the wings 20 are accommodated in the outer periphery of the widening vanes 720 of the widening body 700 of both side supports 300, The supporter 300 is moved onto the table 100 by the screw thread 321 formed in the lower surface of the lower shaft of the support shaft 300 and the support shaft 300 The worm wheel teeth 421 of the gear wheel 420 of the first rotating body 400 provided inside the first rotating body 400 are engaged with the threads 201 of the rotating shaft 200 to rotate the gear wheel 420, The second bevel gear 510 of the second rotating body 500 is rotated by the rotation of the second bevel gear 510 by the engagement of the first bevel gear 430, The second rotating body 500 is rotated and the moving shaft 600 is moved into the first coupling hole 531 of the rotation inducing portion 530 of the second rotating body 500 by the rotation of the second rotating body 500, And the other side of the body portion 620 The fixing part 710 of the widening body 700 is moved to the close part 310 of the supporting part 300 while the fixing wing 720 is moved by the movement of the fixing part 710 of the widening body 700, The widening blade 720 is expanded by the hinge shaft 714 of the fixing portion 710 while the inner surface portion 722 of the wing portion 720 is closely moved along the inclined surface 312 of the tightening portion 310, The outer surface portion 723 closely contacts the inner diameter of the workpiece 20 so that the outer surface portion 723 of the expanding vanes 720 of the both side bodies 700 tightly fix the inner diameters of both sides of the workpiece 20 tightly.

The inclined angle of the inclined surface of the tight fitting portion of the workpiece is determined by the size of the inner diameter of the workpiece to be processed, the purpose and purpose of the workpiece, and the like. It is natural that it is formed at various angles.

The length of the workpiece 20 placed between the support portion 300 and the support portion 300 is shortened when the workpiece having a short length is fixed to the fixture for fixing the workpiece inner diameter of the present invention, The following structure will be described in order to allow the inner diameter of the workpiece 20 to be accommodated without the widening operation of the widening wing 720 of the widening body 700. [

21 and 22, the first bevel gear 430 coupled to the rotating shaft 410 of the first rotating body 400 is moved up to the rotating shaft 410 to rotate freely, The first bevel gear 410 is coupled to the first bevel gear 430 of the rotary shaft 410 at one end of the rotary shaft 410 exposed at the outer surface of the first bevel gear 410, A second slot 432 having the same shape as that of the first slot 411 is formed on the inner peripheral surface of the rotation hole 431 at the center of the first bevel gear 430, The blocking member 450 is inserted through the first slot 411 of the end portion of the rotating shaft 410 so that one end of the blocking member 450 is inserted into the second slot of the rotation hole 431 of the first bevel gear 430 432 so that the first bevel gear 430 is constrained to the rotating shaft 410. [

First, in the first rotating body 400 from which the blocking member 450 is removed, the rotation shaft 410 rotates as the gear wheel 420 rotates due to the rotation of the rotating shaft 200, The first bevel gear 430 coupled to the first bevel gear 430 is engaged with the rotating shaft 410 without restraint of the rotating shaft 410 so that the rotating shaft 410 idles inside the rotating hole 431 of the first bevel gear 430, The rotation of the rotary shaft 200 moves the both side support parts 300 close to both ends of the work 20 so that the blocking member 450 is inserted into the first slot 411 of the rotary shaft 410, The first bevel gear 430 is constrained to the rotating shaft 410 by moving the end of the blocking member 450 to the second slot 432 of the one bevel gear 430. At this time, As the moving shaft 600 moves due to the rotation of the first rotating body 400 and the rotation of the second rotating body 500 and the outer surface portion 723 of the widening blade 720 of the widening body 700 is moved of mine So that the light is tightly fixed.

The first bevel gear 430 mounted on the outer periphery of the rotary shaft 410 is allowed to idly rotate on the outer peripheral surface of the rotary shaft 410 without rotating due to rotation of the rotary shaft 410, A pair of protruding rings may be formed on one surface of the rotary shaft 410 so as to be spaced apart from each other while being separated from the protruding ring 410, So that the first bevel gear 430 is positioned.

One end of the blocking member 450 is moved through the first slot 411 of the rotating shaft 410 through the supporter 440 and is then inserted inwardly from the other end of the blocking member 450 by a predetermined length So that the stepped grooves are provided in the supporter 440 so as not to be constrained to the rotation of the rotary shaft 410.

As described above, the workpiece inner diameter fixing jig can be manufactured by variously changing the design, so that the principle of the invention is limited to the structure of the present invention, Can be easily fabricated by self-design change.

A workpiece inner diameter fixing jig 10, a table 100, a rotating shaft 200, a supporting part 300, a first rotating part 400, a rotating shaft 410, a gear wheel 420, a first bevel gear 430, A second bevel gear 510, a support shaft 520, a rotation inducing part 530, a moving shaft 600, a pipe 700, a fixing part 710, and a wing 720

Claims (2)

A table 100 in which latching grooves 101 are formed in the longitudinal direction at both ends and a first axis receiving groove 110 is formed in the longitudinal direction of the upper surface,
A supporter 120 fixed to both ends of the upper portion of the table 100 is installed to receive the outer circumferential surfaces of both sides so as to be idle in the first shaft receiving groove 110 of the table 100, A rotary shaft 200 having a handle 210 formed at one end thereof,
Each of the supporting portions 300 is installed on both sides of the upper portion of the table 100, and has an insertion hole 311 protruding at a predetermined length on one side of the supporting portion 300 and horizontally penetrating the center of the table 100, 312 formed in the longitudinal direction of the table 100 and the first shaft receiving grooves 110 of the table 100 so as to correspond to the engaging pieces 301 formed in the longitudinal direction at both ends of the lower surface, A second shaft receiving groove 320 in which a screw 321 is formed and an installation groove 330 formed in an upper surface of the second shaft receiving groove 320. The mounting groove 330 faces the second shaft receiving groove 320, (300) having a through hole (331) formed with a predetermined width,
A rotating shaft 410 which is provided in the mounting groove 330 of the supporting part 300 and rotates across the inside of the mounting groove 330 and a rotating shaft 410 which is coupled to the rotating shaft 410 and coaxially arranged with the rotating shaft 410 Shaped gear 421 having worm wheel teeth 421 formed on the outer circumferential surface thereof so as to be engaged with the threaded line 201 of the rotary shaft 200 exposed through the through hole 331 while being positioned in the through hole 331 of the installation groove 330, A first rotating body 400 comprising a wheel 420 and a first bevel gear 430 coupled to the rotating shaft 410 at one side of the gear wheel 420 and disposed coaxially with the rotating shaft 410;
A second bevel gear 510 is provided in the support groove 300 and rotates in engagement with the first bevel gear 430 of the first rotating body 400, (532) formed on an inner circumferential surface of the support shaft (520) and horizontally penetrating the support shaft (520) at a predetermined length from one end to the other end of the support shaft (520) A second rotating body 500 formed of a rotation inducing part 530 formed with a rotating shaft 531,
A thread 601 is formed on the outer circumferential surface of the support portion 300 so as to be screwed into the first coupling hole 531 of the rotation inducing portion 530 of the second rotating body 500 through the insertion hole 311 of the contact portion 310 of the support portion 300 A moving shaft 600 formed with an intermittent tab 610 protruding from the outer periphery of the end portion of the tightening portion 310 and extending outwardly of the insertion hole 311 and a second fastening hole 611 penetrating horizontally inward at the center of the end portion, );and,
A coupling groove 711 is formed on one surface of the movable shaft 600 so that the intermittent tab 610 is coupled to the coupling shaft 711. When the intermittent tab 610 of the moving shaft is coupled to the coupling groove 711, And is fastened and fixed to the second fastening hole 611 of the moving shaft 600 through the third fastening hole 712 by using fastening bolts 730. The fastening bolts 730 are fastened and fixed to the second fastening holes 611 through the third fastening holes 712, And is divided into a plurality of divided portions while being coupled to a fixing portion 710 formed with a plurality of coupling holes 713 spaced from each other in a circumferential direction and coupled to a coupling hole 713 of the fixing portion 710, A hook portion 721 is formed at one side lower portion so as to be pivotally coupled to the coupling hole 713 of the coupling portion 710 and an inclined inner surface portion 721 which is in contact with the inclined surface 312 of the close portion 310 of the support portion 300, (720) having an outer surface for gripping an inner diameter of the work (20) on the upper surface of the inner surface portion (722) and the inner surface portion (722) Corresponding the expansion tube 700, which is installed in a cylindrical shape on; workpiece, characterized in that consisting of inner fixing jig. The apparatus according to claim 1, wherein the first bevel gear (430) coupled to the rotating shaft (410) of the first rotating body (400) is moved up to the rotating shaft (410) A first slot 411 is formed on one outer circumference of the rotation axis 410 in a longitudinal direction from one end of the exposed rotation axis 410 to one side of the rotation axis 410 to which the first bevel gear 430 of the rotation axis 410 is coupled And a second slot 432 having the same shape as that of the first slot 411 is formed on the inner peripheral surface of the rotation hole 431 in the center of the first bevel gear 430, The blocking member 450 is inserted through the first slot 411 of the first bevel gear 410 and the one end of the blocking member 450 is inserted into the second slot 432 of the rotation hole 431 of the first bevel gear 430 And the first bevel gear (430) is constrained to the rotary shaft (410).
KR1020150112543A 2015-08-10 2015-08-10 Jig for fixing inside diameter of work piece KR101563990B1 (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101661445B1 (en) * 2016-07-26 2016-10-10 최성윤 Jig for processing steel sheet
KR101757120B1 (en) 2016-07-15 2017-07-12 주식회사 신한정공 Tool for assembling and disassembling runner of horizontal type francis turbine
CN107486801A (en) * 2017-10-17 2017-12-19 董杰 A kind of easy industrial machinery is with clamping
CN107731609A (en) * 2017-11-21 2018-02-23 国网山东省电力公司烟台供电公司 A kind of disconnecting switch for possessing anti-interference function
CN108526946A (en) * 2018-04-18 2018-09-14 郑州佳泰机电科技有限公司 A kind of positioning device of milling machine machining cam axis cam
CN108555567A (en) * 2018-01-16 2018-09-21 江苏汉唐环保科技有限公司 A kind of pressing device for flange-connection stainless steel metal flexible pipe
CN109483444A (en) * 2019-01-02 2019-03-19 安徽誉特双节能技术有限公司 A kind of maintenance positioning tool of steam turbine rotor
CN110270946A (en) * 2019-06-20 2019-09-24 东莞华贝电子科技有限公司 Workpiece is inserted into axis mechanism
CN111716267A (en) * 2020-07-03 2020-09-29 段福强 Workpiece clamp with synchronous clamping structure for machining production
CN113231848A (en) * 2021-05-06 2021-08-10 江西耐乐铜业有限公司 Special straight-pull production equipment for ultrathin grooved pipe
CN116787189A (en) * 2023-08-28 2023-09-22 苏州赛腾精密电子股份有限公司 Positioning module
KR102620814B1 (en) 2023-07-19 2024-01-02 이정환 self centering vise

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KR101475188B1 (en) 2014-11-03 2014-12-30 권대규 Jig for fixing work piece

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
KR101475188B1 (en) 2014-11-03 2014-12-30 권대규 Jig for fixing work piece

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101757120B1 (en) 2016-07-15 2017-07-12 주식회사 신한정공 Tool for assembling and disassembling runner of horizontal type francis turbine
KR101661445B1 (en) * 2016-07-26 2016-10-10 최성윤 Jig for processing steel sheet
CN107486801B (en) * 2017-10-17 2019-09-06 浙江黄岩永久工艺厂 A kind of industrial machinery is with clamping
CN107486801A (en) * 2017-10-17 2017-12-19 董杰 A kind of easy industrial machinery is with clamping
CN107731609A (en) * 2017-11-21 2018-02-23 国网山东省电力公司烟台供电公司 A kind of disconnecting switch for possessing anti-interference function
CN107731609B (en) * 2017-11-21 2019-04-02 国网山东省电力公司烟台供电公司 A kind of disconnecting switch having anti-interference function
CN108555567A (en) * 2018-01-16 2018-09-21 江苏汉唐环保科技有限公司 A kind of pressing device for flange-connection stainless steel metal flexible pipe
CN108526946A (en) * 2018-04-18 2018-09-14 郑州佳泰机电科技有限公司 A kind of positioning device of milling machine machining cam axis cam
CN109483444A (en) * 2019-01-02 2019-03-19 安徽誉特双节能技术有限公司 A kind of maintenance positioning tool of steam turbine rotor
CN110270946A (en) * 2019-06-20 2019-09-24 东莞华贝电子科技有限公司 Workpiece is inserted into axis mechanism
CN111716267A (en) * 2020-07-03 2020-09-29 段福强 Workpiece clamp with synchronous clamping structure for machining production
CN113231848A (en) * 2021-05-06 2021-08-10 江西耐乐铜业有限公司 Special straight-pull production equipment for ultrathin grooved pipe
KR102620814B1 (en) 2023-07-19 2024-01-02 이정환 self centering vise
CN116787189A (en) * 2023-08-28 2023-09-22 苏州赛腾精密电子股份有限公司 Positioning module
CN116787189B (en) * 2023-08-28 2023-11-10 苏州赛腾精密电子股份有限公司 Positioning module

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