KR101643316B1 - index table apparatus - Google Patents

Abstract

The present invention provides an index table apparatus which improves economic efficiency by structure simplification. The index table apparatus comprises: an index table provided with a plurality of mounting holes penetrated and formed in a circumferential direction at prescribed angular intervals, and divided and rotated at the prescribed angular intervals by a first rotary means; a jig unit installed in each mounting hole, and provided with a seating unit disposed on an upper surface thereof, on which a workpiece is seated, and a meshing protrusion which protrudes on a lower surface thereof and is exposed to a lower portion of the mounting hole; a lifting frame arranged on a lower portion of the index table to be lifted by a first lifting means, on which a second lifting means and a second rotary means are installed; and a grip rotary unit comprising a hollow shaft connected to the second rotary means to be rotated, and a plurality of finger units disposed on an upper end of the hollow shaft to grip the meshing protrusion of the jig unit transported to a prescribed machining position to be rotated, and radially tightened and spread by a vertical drive force by the second lifting means.

Description

Index table apparatus < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an index table apparatus, and more particularly, to an index table apparatus in which economical efficiency is improved by simplifying a structure.

Generally, an index table refers to a device that is intermittently rotated at a predetermined angle to continuously process and weld a plurality of parts.

Here, a plurality of jigs for fixing the components along the circumferential direction are disposed on the upper surface of the index table, and the jigs are spaced apart at predetermined angular intervals. At this time, as the index table is repeatedly rotated and stopped at the set angle, the parts held in each jig can be sequentially transferred to the machining position.

On the other hand, since a cylindrical part such as a cylinder is transferred to a machining position through an index table, machining means such as a welding device must be moved along the machining target portion of the transferred part, Expensive robot equipment such as a six-axis robot arm and a complicated position control program are required.

In order to simplify the position control of the processing means, conventionally, an apparatus has been disclosed in which each jig provided in the index table is rotated together with the rotation of the index table.

That is, when one jig moves to the machining position by rotation of the index table, machining can be performed in the circumferential direction with respect to the machining target portion of the part without complicated movement of the machining means as the moved jig is rotated on the index table.

However, since the conventional index table has to be equipped with separate auxiliary rotation means for each jig, there is a problem that the structure is complicated and the cost of the apparatus becomes high.

In addition, not only a high-output rotation means is required to rotate the plurality of auxiliary rotation means in unison with the index table, but also the rotation means is easily overloaded due to the increased weight of the index table.

Korean Registered Utility Model No. 20-0456169

In order to solve the above-mentioned problems, the present invention provides an index table apparatus in which economical efficiency is improved by simplifying the structure.

According to an aspect of the present invention, there is provided an index table comprising: an index table having a plurality of engaging holes formed at predetermined angular intervals along a circumferential direction and being dividedly rotated at the set angular interval by a first rotating means; A jig provided on each of the coupling holes, the jig including a seating portion on an upper surface of which the object to be processed is seated, and a locking protrusion protruding from the lower portion of the locking hole, A lift frame disposed at a lower portion of the index table and being raised and lowered by the first elevating means and provided with the second elevating means and the second rotating means; A hollow shaft rotatably connected to the first rotating means and rotated by being connected to the second rotating means, and a bending protrusion of the jig transferred to a predetermined machining position is gripped and rotated, And a grip rotating portion including a plurality of finger portions which are fastened and unfolded in the direction of the gripping portion.

Here, the upper end of the hollow shaft is provided with a receiving portion having the plurality of slits formed therein for receiving the engaging protrusions and each of the finger portions is coupled to the side portion, and the lower end of the hollow shaft is connected to the second lifting means, It is preferable that a hollow portion penetrating in the up and down direction is formed so that the lifting rod connected to the fingering is disposed.

Each of the finger portions includes a base portion coupled to rotate on the inner surface of the slit, a restraint connecting portion extending radially inward from the base portion to be restrained by the upper end of the lifting rod, And a chuck portion extending upward from the base portion so as to press-fix the outer periphery of the projection inward in the radial direction.

Preferably, the lower end of the lifting rod is provided with a hooking portion for hooking the second lifting means in the radial direction.

The index table is provided with a machining device for machining an object to be machined to be rotated by the grip rotary part at the machining position. An elastic support for supporting the upper end of the object to be machined downward is provided at the upper part of the index table, And the jig and the elastic supporter are provided in a plurality of sets corresponding to the specifications of the object to be processed, and each of the jig and the elastic supporter is selectively removable.

Through the above solution, the present invention provides the following effects.

First, not the separate rotation means is provided for each jig, but rotation of all the jig portions sequentially transferred by the fingering which is rotated on the lifting frame arranged on the lifting and lowering position and tightened and opened in the radial direction is possible The economical efficiency of the apparatus can be improved with a simple structure.

Secondly, since the jig is separated from the index table and can be spaced apart from the index table in the state where the jig is engaged with the finger, the heat or vibration generated during processing can be prevented from being transmitted to the index table or other objects, The durability and the processing quality can be improved.

Third, since the fingers can be strongly gripped by the upward and downward driving force of the lifting rod to strongly grip the bite protrusion of the jig, it is possible to securely fix the jig even when the jig is separated from the index table, And a double structure of the lifting rods allow a compact device configuration in which the volume of the power transmission structure for rotation and tightening / opening of the finger portion is minimized.

1 is a perspective view of an index table apparatus according to an embodiment of the present invention;
2 is a front view of an index table apparatus according to an embodiment of the present invention;
3 is a side view of an index table apparatus according to an embodiment of the present invention.
4 is a cross-sectional view showing a grip rotating part of an index table apparatus according to an embodiment of the present invention.
5 is a plan view showing a grip rotating part of an index table apparatus according to an embodiment of the present invention.
FIG. 6A and FIG. 6B are views illustrating driving of a grip rotating part in an index table device according to an embodiment of the present invention; FIG.
FIG. 7 is a cross-sectional view illustrating an elastic support portion of an index table device according to an embodiment of the present invention. FIG.
8A and 8B illustrate another set of jigs and resilient supports in an index table apparatus according to an embodiment of the present invention.

Hereinafter, an index table apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of an index table apparatus according to an embodiment of the present invention, FIG. 2 is a front view of an index table apparatus according to an embodiment of the present invention, FIG. 3 is an index table according to an embodiment FIG. 4 is a cross-sectional view illustrating a grip rotating portion of an index table apparatus according to an embodiment of the present invention, FIG. 5 is a plan view showing a grip rotating portion of the index table apparatus according to an embodiment of the present invention, FIG. 7 is a cross-sectional view illustrating an elastic supporting portion of the index table apparatus according to an embodiment of the present invention. FIG. 7 is a cross- And FIGS. 8A and 8B are views illustrating another set of jigs and elastic supports in the index table apparatus according to an embodiment of the present invention.

1 to 8B, an index table apparatus 100 according to an embodiment of the present invention includes an index table 10, a jig 20, a lift frame 30, and a grip rotation unit 40 .

Here, the index table apparatus 100 sequentially transfers a plurality of objects disposed along the circumferential direction through intermittent rotation to a predetermined processing position t, and sequentially transfers the objects to be processed s) is rotated and elevated.

1 to 3, a plurality of coupling holes 11 are formed in the index table 10 at intervals of predetermined angles along the circumferential direction. Then, the index table 10 is dividedly rotated at the set angle (?) By the first rotating means (53).

The index table 10 is rotatably mounted on a base frame 50 supported on a paper surface, and the first rotating means 53 is a servo (not shown) Pinion gear connected to a motor or a hydraulic cylinder, or the like.

1 and 2, the base frame 50 and the index table 10 are spaced apart from each other, and a support bracket 52 (see FIG. 1) is provided between the index table 10 and the base frame 50, .

The lower end of the support bracket 52 is coupled to the base frame 50 and the first rotation means 53 is mounted in the support bracket 52. At this time, the index table 10 can be rotated as the driving shaft of the first rotating means 53 is connected to the center of the lower surface of the index table 10.

The outer periphery of the central portion of the index table 10 connected to the drive shaft is supported by the upper surface of the support bracket 52 so that vibration during rotation can be reduced and damage to the drive shaft to the first rotation means 53 can be minimized . At this time, a bearing member for reducing frictional force is preferably provided at the contact portion between the support bracket 52 and the index table 10. [

Herein, the index table 10 is dividedly rotated to rotate the index table 10 at the predetermined angle interval and then stop at a predetermined interval.

1 to 6A, the jig 20 is provided as a circular block member, and a plurality of jig portions 20 are provided for each of the engagement holes 11. As shown in FIG.

That is, each of the jig portions 20 is provided on each of the engagement holes 11, and one object s is fixed to each jig portion 20, so that the jig portions 20 are moved along the circumferential direction of the index table 10 A plurality of objects to be processed can be fixed.

The upper surface of each jig 20 is provided with a groove-shaped seating portion 21 recessed to correspond to the outer diameter of the object to be processed s.

At this time, a seating protrusion 21a having an outer diameter corresponding to the inner diameter of the object to be processed 21 may be provided at the center of the seating part 21, and an elastic material may be fixed to the inner peripheral edge of the seating part 21. [ It is also possible that the packing 21b is further provided.

The lower end of the object s is elastically fitted and fixed between the outer periphery of the seating projection 21a and the inner periphery of the seating portion 21 so that the object s can be stably conveyed .

8A to 8B, the jig 20 is provided with a plurality of sets 20a and 20b corresponding to the specifications of a plurality of different objects to be processed s, 11).

The respective jig portions 20, 20a and 20b are formed in the shape of a circle having a diameter of the object s, such as the cross-sectional area of the seating portion 21, the diameter and the presence of the seating projections 21a, Or a variety of sets corresponding to the material.

Accordingly, since one apparatus can be applied to the object to be processed of various specifications, the compatibility of the product can be improved.

The lower surface of the jig 20 is formed in a stepped shape so as to be stepped downward as it goes downward. A bite projection 22 is formed at the center of the lower surface to expose the lower portion of the coupling hole 11.

At this time, the coupling hole 11 is provided with a joint fixing part 12 on which the jig 20 is seated. The mold joint unit 12 is provided for each of the engaging holes 11 and has a communicating hole 12c through which the engaging protrusion 22 passes.

The upper surface of the mold clamping unit 12 is provided with a fitting groove portion 12b which is recessed in a shape which is formed in a stepped shape on the lower surface of the jig portion 20, And a rim portion 12a for covering the outer periphery of the jig 20 is provided at the rim.

Accordingly, the respective jig portions 20 can be stably mounted on the respective coupling holes 11 without lateral flow, and can be easily separated upward.

1 to 4, the lifting frame 30 is disposed below the index table 10 and is lifted and lowered by the first lifting means 55.

The lifting frame 30 includes a pair of lifting shafts 34 spaced left and right, an upper lifting frame 33 connected to the upper ends of the lifting shafts 34, And a mounting frame 36 connected to the lower lifting frame 31. The lower lifting frame 31 may be mounted on the lower frame 30,

In detail, the base frame 50 is formed with a penetration portion 51 through which the lift frame 30 passes at a portion corresponding to a predetermined machining position t. Here, the machining position t is set at one side of the rotation locus of the jig 20, and the workpiece conveyed to the machining position t can be machined through a machining apparatus (not shown).

For example, the index table 10 is initially set so that one of the jig portions 20 to the engaging holes 11 is aligned and arranged at the machining position t.

At this time, when the index table 10 is rotated and stopped in the unidirectional direction at the predetermined angle (?), The jig disposed at the machining position in the initial setting state is moved along the rotation direction to be separated from the machining position, The jig disposed on the side opposite the rotation direction can be moved to the machining position.

As the rotation and stop of the index table 10 are periodically repeated, the object to be processed s fixed to each of the jigs is sequentially transferred to the processing position t, and by the processing device (not shown) Can be processed.

Further, a guide frame 54 is provided below the penetrating portion 51. Here, the guide frame 54 may be connected to both edges of the penetrating portion 51 through a pair of connecting bars.

The guide frame 54 is provided with a guide tube 54a at a position corresponding to each of the lift shafts 34.

Each of the elevating shafts 34 is inserted into each of the guide tube portions 54a so that the upper and lower elevating frames 33 and 31 are disposed on the upper and lower portions of the guide frame 54, (30) can be moved up and down in a certain direction at a predetermined position.

A first elevating means 55 is provided at one side of the guide frame 54 and the lower elevating frame 31 is connected to the guide frame 54 by a first elevating means 55.

At this time, the lifting frame 30 can be lifted up and down as the lower lifting frame 31 is pulled and pushed with reference to the guide frame 54 fixed when the first lifting unit 55 is extended and retracted.

The second elevating means 32 is installed on the lower surface of the mounting frame 36 and the second rotating means 35 is provided on the upper surface of the lower elevating frame 31, As shown in Fig.

4 to 5, the grip rotating portion 40 includes a hollow shaft 41 connected to the second rotating means 35 and rotated, a jig portion A plurality of fingers 30 provided at an upper end of the hollow shaft 41 so as to be gripped and rotated by the engaging protrusions 22 of the first and second lifting means 20 and fastened and unfolded in the radial direction by the up and down driving force by the second lifting means 32, (43).

Here, the hollow shaft 41 may be installed at the center of the lifting frame 30. That is, the hollow shaft 41 is disposed between the lifting shafts 34 so as to pass through the upper lifting frame 33, the lower lifting frame 31, and the guide frame 54.

The hollow shaft 41 is rotatably installed on the lifting frame 30 and is supported on one side of the lifting frame 30 so as not to move in the vertical direction, It is preferable that a bearing member is provided at the contact portion between the first and second plates 41,

A timing pulley 41a connected to the second rotating means 35 is provided on the outer periphery of the lower end of the hollow shaft 41 disposed between the lower lifting frame 31 and the mounting frame 36.

The lower end of the hollow shaft 41 exposed to the lower portion of the lower lifting frame 31 is arranged to face the second lifting means 32 and the lower end of the hollow shaft 41 exposed to the upper portion of the lifting frame 30, It is preferable that a receiving portion 41b is provided at the upper end of the first housing 41. [

The receiving portion 41b is provided in the shape of a container having a groove corresponding to the cross sectional area of the engaging projection 22 so as to receive the engaging projection 22, An opening 41d communicating with the formed hollow portion is formed.

At this time, the receiving portion 41b is coupled to the upper end of the hollow shaft 41 through welding or bolt tightening so as to rotate integrally with the hollow shaft 41, It is preferable that a plurality of slits 41c are formed.

Each of the fingers 43 may receive the rotational force of the hollow shaft 41 through the inner surface of the slit 41c and the hollow shaft 41 and the respective fingers 43 may be integrally formed Can be rotated.

In the hollow shaft 41, a hollow portion penetrating in the vertical direction is formed. The hollow portion is connected to the second elevating means 32 at the lower end, and the upper end passes through the opening 41d, It is preferable that the lifting rod 42 connected to the fingering rest 43 is disposed.

At this time, the lifting rod 42 is lifted and lowered by the second lifting means 32 in the hollow shaft 41, and is lifted and lowered along the axial direction of the hollow shaft 41 by the second lifting means 32 In the vertical direction.

The elevating rod 42 is fixed to the upper and lower ends of the hollow shaft 41 so that the upper and lower ends of the elevating rod 42 are exposed to the upper and lower sides of the hollow shaft 41, It is preferable to have a length longer than the directional length.

At this time, the lower end of the lifting rod 42 is provided with a latching portion 42d for locking the second lifting means 32 in the radial direction. Here, the engaging portion 42d means a circular ring-shaped space.

A ring-shaped spacer 42b is coupled to the lower end of the lifting rod 42 and a narrowed threaded portion of the reamer bolt 42c is screwed into the lower surface of the lifting rod 42 through the center hole of the spacer 42b. The engaging portion 42d can be formed between the spacer 42b and the head of the reamer bolt 42c.

The second elevating means (32) is provided with a coupling housing (32a) at the end of the operating rod. In detail, a coupling hole corresponding to the outer diameter of the center of the reamer bolt 42c is formed on the upper surface of the coupling housing 32a, and the reamer bolt 42c is coupled to the lift rod 42 through the coupling hole. have.

Here, a thrust bearing is preferably provided between the head of the reamer bolt 42c and the upper end of the coupling housing 32a.

At this time, the lower end of the coupling housing 32a is coupled to the end of the operation rod. Accordingly, the elevating rod 42 can be rotated separately from the second elevating means 32 while being vertically moved by the second elevating means 32.

When the hollow shaft 41 is rotated by the second rotating means 35, the rotational force of the second rotating means 35 is transmitted to the engaging projection 22 through the finger reflex 43, the jig 20 and the object to be processed s which have been transferred (t) can be rotated.

The lifting rod 42 for opening and tightening the fingering 43 in the axial direction is disposed along the rotation center portion of the hollow shaft 41 so as to move the lifting rod 42 and the lifting rod 42 Since the weight of the second elevating means 32 is not directly applied to the second rotating means 35 for rotating the jig 20 so that the object can be stably rotated even at a low output, Quality can be improved.

In addition, a compact device structure in which the volume of the power transmission structure for rotating and radial rotation of the finger reflex 43 is minimized through the overlapped double structure of the hollow shaft 41 and the lifting rod 42 is possible.

The fingering member 43 receives the rotational force of the hollow shaft 41 through the slit 41c of the receiving portion 41b and receives the engaging projection 22 Can be gripped and released.

Each of the fingers 43 includes a base portion 43b coupled to rotate on the inner surface of the slit 41c and a base portion 43b radially extending from the base portion 43b to be restrained by the upper end of the lifting rod 42. [ And a chuck portion 43a extending upward from the base portion 43b so as to press-fix the outer circumference of the engagement protrusion 22 radially inward when the restricting connection portion 43c is lowered, ).

Here, each of the fingers 43 is formed in an L shape, and the base portion 43b is a portion connecting the upwardly extended portion and the laterally extended portion. .

At this time, a constraining groove 43d is formed at an inner end of the restricting connection part 43c, which is recessed radially inward to insert a restricting projection 42a protruding radially outward from the upper end of the lift rod 42. [

Here, when the restricting projection 42a is pressed upward on the restricting connection portion 43c, the chuck portion 43a is rotated radially outward about the base portion 43b, and the restricting projection 42a When the restricting connection portion 43c is pressed downward, the chuck portion 43a is rotated radially inward about the base portion 43b.

At this time, the chuck portion 43a is longer than the restricting connection portion 43c, and the outer periphery of the engagement protrusion 22 can be strongly pressed and griped through the leverage movement based on the base portion 43b .

On the other hand, the grip rotating portion 40 is coupled to the lifting frame 30 which is lifted and lowered by the first lifting means 55 and is raised and lowered.

Specifically, each of the fingers 43 is opened by an upward driving force of the second lifting means 32 independently driven from the first lifting means 55, and is lifted up by the lifting projection 30 22).

At this time, when the engaging projection 22 is inserted into the receiving portion 41b, the finger 43 is fastened radially inward by the downward driving force of the second elevating means 32, 22).

It is preferable that the elevation frame 30 is elevated so that the upper end of the object to be processed is brought into contact with the elastic supporting portion 70 while the jig 20 is separated from the index table 10.

The rotational force of the hollow shaft 41 through the second rotating means 35 is transmitted to the engaging projection 22 via the slit 41c and the finger reflex 43 and the jig 20 is rotated .

At this time, it is preferable that a machining device (not shown) for machining the object s to be rotated by the grip rotating part 40 is provided at the machining position t. Here, the processing apparatus (not shown) may be provided with a laser welding apparatus or the like, and is preferably installed to move laterally at the side of the processing position t.

The processing device is moved in the lateral direction and can be moved toward the object to be processed s. As the jig part 20 is rotated while the processing device is in contact with the processing part of the object s The machining portion of the object s can be machined in the circumferential direction.

At this time, the jig 20 is detachably installed from the index table 10, and the jig 20 held by the finger 43 is moved from the processing position t to the second rotating means 35, And can be moved up and down as the lifting frame 30 is lifted and lowered.

Therefore, even when a simple machining device is provided that is uniaxially moved in the lateral direction, the entire outer surface of the object to be processed can be machined and the efficiency of the product can be improved.

Further, since the jig 20 can be separated from the index table 10 by being separated from the index table 10 in accordance with the rise of the lifting frame 30 in a state where the jig 20 is engaged with the fingers 43, It is prevented from being transmitted to the index table 10 or other objects to be processed, and the durability and processing quality of the apparatus can be improved.

In other words, it is possible to prevent the first rotating means 53, such as a servo motor for precise rotation of the index table 10, from being damaged by vibration or heat generated during machining, It is possible to prevent deformation by vibration or heat generated during processing.

Since the fingers 43 can leverage the lifting rod 42 by the vertical driving force of the lifting rod 42 to strongly grip the lifting protrusion 22, It can be stably fixed in a state of being separated from the table 10, so that the processing quality of the apparatus can be improved.

That is, the machining defects that the jig 20 can separate from the fingers 43 or the hollow shaft 41 or can occur along the diaphragm can be minimized.

When the processing of the object to be processed is completed, the lifting frame 30 is lowered, and the fingering 43 is spread outward radially outwardly by the downward driving force of the second lifting means 32.

The jig 20 may be detached from the grip rotating part 40 and may be seated in the coupling hole 11 of the index table 10, (10) is rotated and stopped at a predetermined angle (?) Interval.

The object to be processed of the succeeding jig 20 transferred to the transfer position t can be processed by repeating the grip / rotation of the finger refusal 43 and the ascending and descending operations of the lifting frame 30.

The fingers 43 are rotated on the lifting frame 30 disposed at the working position t and moved up and down in the radial direction, It is possible to perform the rotary operation of all the jig portions 20 sequentially transferred to the processing position (t) through the through-hole, so that the economical efficiency of the apparatus can be improved with a simple structure.

Since the grip rotating portion 40 for rotating the jig portions 20 is separated from the index table 10 and provided at the lower portion of the processing position t, The load of the motor 53 can be reduced.

1 to 7, an elastic supporting portion 70 is disposed at an upper portion of the index table 10 so as to face the grip rotating portion 40 and elastically supports the upper end of the object s downward .

The elastic supporting part 70 includes a supporting rod 72, an elastic member 73 and a rotation supporting part 71. The elastic supporting part 70 can be installed on the upper frame 60 disposed on the upper part of the base frame 50 have.

In detail, the support rod 72 may be installed in the hollow portion of the guide portion 62 provided in the upper frame 60. A stopper ring 73a is coupled to one side of the outer circumference of the support rod 72 exposed to the lower side of the guide part 62 and an elastic member 73 is connected between the stopper ring 73a and the guide part 62 do.

The elastic member 73 may be a coil spring, and may be mounted on the outer circumference of the support rod 72.

A stopper ring 73b is also coupled to the outer circumference of the support rod 72 exposed to the upper portion of the guide portion 62. The upper stopper ring 73a is fixed to the upper end of the guide portion 62 And can be located at a constant height without being separated to the lower side of the support rod 72.

A rotation support portion 71 for supporting an upper end portion of the object s is rotatably coupled to a lower end portion of the support rod 72.

The gap between the rotary support 71 and the jig 20 at the maximum lowering position of the support rod 72 that the upper stopper ring 73b is seated on the upper end of the guide portion 62, As shown in Fig.

The object to be processed s transferred to the machining position t in accordance with the rotation of the index table 10 is disposed at the lower portion of the rotary support portion 71 in a state of being fixed to the jig 20.

At this time, when the lifting frame 30 is lifted and lowered in a state where the engaging projection 22 is engaged with the grip rotating portion 40, the jig portion 20 can be separated from the index table 10 and moved upward .

The upper end of the object to be processed s is supported by the rotary support portion 71 and the upper surface of the object to be processed s is supported in accordance with the rising height of the jig portion 20, And the rotation support portion 71 can be maintained in contact with each other.

That is, since the upper end of the object s is supported by the rotary support 71 rotatably coupled to the support rod 72, the jig 20 is rotated, so that lateral flow and vibration are minimized Stable rotation is possible and the improvement of the machining quality of the apparatus can be improved.

8A and 8B, the plurality of sets 70a and 70b of the elastic supporter 70 may be attached to and detached from the upper frame 60 according to the specifications of the object s. .

The elastic supports 70, 70a and 70b are provided in various sets according to the shapes (protrusions, grooves), diameters of the rotation support portions 71, 71a and 71b, the lengths of the support rods 72, 72a and 72b, .

The length of the support rods 72, 72a, and 72b is used to adjust the distance between the rotation support portion and the jig 20 in a state where the support rods 72, 72a, and 72b are installed on the guide portion 62, desirable.

Accordingly, since one apparatus can be applied to the object to be processed of various specifications, the compatibility of the product can be improved.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

100: Index table device 10: Index table
11: coupling hole 12:
20: jig 21: seat part
22: Bite projection 30: Lift frame
32: second elevating means 35: second rotating means
40: Grip rotation part 41: Hollow shaft
42: lift rod 43:
50: base frame 53: first rotating means
55: first elevating means

Claims (5)

An index table having a plurality of engaging holes formed at predetermined angular intervals along a circumferential direction and being dividedly rotated at the set angular interval by a first rotating means;
A jig provided on each of the coupling holes, the jig including a seating portion on an upper surface of which the object to be processed is seated, and a locking protrusion protruding from the lower portion of the locking hole,
A lift frame disposed at a lower portion of the index table and being raised and lowered by the first elevating means and provided with the second elevating means and the second rotating means; And
A hollow shaft rotatably connected to the second rotating means, and a bending protrusion of the jig transferred to a predetermined machining position is gripped and rotated so as to be rotated in the radial direction by a vertical driving force by the second lifting means And a grip rotating portion including a plurality of finger portions which are fastened and unfolded by the gripping portion. The method according to claim 1,
And a plurality of slits are formed in the upper end of the hollow shaft to receive the engaging protrusions,
Wherein the hollow shaft is formed with a hollow portion penetrating in the vertical direction so that a lower end portion of the hollow shaft is connected to the second elevating means and an upper portion of the elevating rod is connected to each of the fingers. 3. The method of claim 2,
Each of the finger portions
A base portion coupled to be rotated on an inner surface of the slit,
A restraint connecting portion extending radially inward from the base portion so as to be confined to the upper end of the lifting rod;
And a chuck portion extending upward from the base portion so as to press-fix the outer circumference of the engaging protrusion radially inward when the confining connection portion is lowered. 3. The method of claim 2,
And the lower end of the lifting rod is provided with a latching portion in which the second lifting means is hooked in the radial direction. The method according to claim 1,
And a processing device for processing an object to be processed, which is rotated by the grip rotating portion,
Wherein the index table is provided at an upper portion thereof with an elastic supporting portion disposed to face the grip rotating portion and elastically supporting the upper end portion of the object to be lowered,
Wherein the jig portion and the elastic supporting portion are provided in a plurality of sets corresponding to the specification of the object to be processed, and each of the jig portion and the elastic supporting portion is selectively detachable.

Images