JPH06106440A - Dividing jig - Google Patents

Abstract

PURPOSE:To cope with various forms of use and compact the jig by disposing a chuck base having a chuck portion capable of dividing at plural angular positions and a center base on a base body. CONSTITUTION:A chuck 7a in a chuck portion 7 is loosened and a work is fixed in the chuck portion 7. Then, a fixing member 13 is loosened and a center base 11 is moved, so that a race center is fitted to a center hole of the work. In this state, the center base 11 is fixed to a base body 1. A dividing jig is then fixed to a vise fixed on a bed of a machine tool. By loosening a fixing tool, a plunger 8 is moved and then the plunger 8 is detached from a positioning hole 6a, 6b, 6c,... in a dividing member 6. Subsequently, the dividing member 6 is turned round by a necessary angle and the nthe plunger 8 is fitted to a corresponding, positioning hole. In this state, the fixing screw is tightened, and the dividing member 6 is fixed on a chuck mounting base 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indexing jig which is used in combination with a machine tool to efficiently machine a work.

[0002]

2. Description of the Related Art Conventionally, when machining a workpiece having a large number of machining surfaces or a round material with a large number of holes of equal pitch, taps, screw contacts, etc. by a machine tool, the relative angle of the workpiece with respect to the tool axis of the machine tool. A so-called indexing jig has been developed to set the position of the tool at a predetermined position.

[0003]

However, since the conventional indexing jig is a heavy object having a weight exceeding 50 kg, a hand crane is required for the setup work, and the usage form is limited, and the setup is required. The workability is extremely poor due to the long working time.

The present invention has been made in order to solve the above-mentioned problems, and it is lightweight, has a high degree of freedom in its use form, requires a short time for setup, and is extremely excellent in workability. The purpose is to provide ingredients.

[0005]

In order to achieve this object, an indexing jig of the present invention comprises a base body and a chuck portion detachably supported by the base body and capable of indexing at a plurality of angular positions. And a center table detachably supported by the base body.

[0006]

The indexing jig having the above construction can be used even when the chuck base and the center base are attached to the base body, and the chuck base can be detached from the base body and used as a single chuck base.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

The base body 1 has an inverted T-shaped guide groove 1a.
Are provided so as to penetrate from both left and right sides in FIG. A chuck base 2 movably and detachably supported by the base body 1 includes an L-shaped chuck mount 3 and a fixing member 4 for fixing the chuck mount 3 to the base body 1. A guide key 5 for guiding and positioning the chuck mounting base 3 in the guide groove 1a, an indexing member 6 rotatably supported by the chuck mounting base 3, and an indexing member 6 that rotates together with the indexing member 6 and Chuck part 7 having a chuck 7a supported so as to be movable relative to the radial direction of the
And a plunger 8 for positioning the indexing member 6.

The indexing member 6 has a large number of positioning holes 6a, 6b, 6c, 6d formed in its outer periphery at a predetermined angle (that is, 15 degrees, 30 degrees, 45 degrees, 60 degrees ...).
. Are provided, and the indexing member 6 is positioned at a desired angular position by engaging with the plunger 8.

Further, as shown in FIG. 2, the indexing member 6 is provided with a screw portion 10 protruding from the chuck mounting base 3, and cooperates with a fixing screw 9 to mount the indexing member 6 on the chuck. Stick to the table 3. A through hole 14 centering on the rotation axis is provided from the indexing member 6 to the chuck portion 7.

The center stand 11 detachably supported by the base body 1 is composed of a base 11a and a race center 11b, and is slidably guided and supported by the guide key 12 with respect to the base body 1 by a fixing member 13. Positioned at the desired position. As a matter of course, the axis of the race center 11b and the axis of the through hole 14 coincide with each other.

A first usage example of the indexing jig configured as described above will be described with reference to FIG.

First, after loosening the chuck 7a of the chuck portion 7, the workpiece 15 is fixed to the chuck portion 7. Next, the fixing member 13 is loosened to move the center table 11, and the center table 11 is fixed to the base body 1 with the race center 11b engaging with the center hole of the workpiece 15. In this state, the indexing jig is fixed to the vise 110 fixed to the bed 100 of the machine tool. Then, after loosening the fixing screw 9, the plunger 8 is moved in the direction of arrow A, and the plunger 8 is disengaged from the positioning holes (6a, 6b, 6c ...) of the indexing member 6. Then rotate the indexing member 6 by the required angle,
The plunger 8 is engaged with the corresponding positioning hole of the indexing member 6. In this state, the fixing screw 9 is tightened to fix the indexing member 6 to the chuck mounting base 3. As a result, the predetermined processing surface of the workpiece 15 faces the tool 120.

A second use example will be described with reference to FIG.

Workpiece 1 positioned on chuck base 2
When processing the left and right end portions 15a and 15b of No. 5, as shown by the solid line in FIG. 3, the center base 11 is positioned on the left side of the base body 1 and the left end portion 15a is processed. Position it on the right side of the base body 1 shown by the dotted line,
The right end portion 15b is processed.

A third use example will be described with reference to FIG.

The third example of use is for processing a long product.
By removing the chuck mounting base 3 and the center base 11 from the base body 1 and directly fixing them to the bed 100 of the machine tool for use, it is possible to process a long object. According to this method of use, it is possible to process a workpiece within the length of the bed 100.

Next, a fourth example of use will be described with reference to FIG.

The fourth example of use is when the head of the T-shaped workpiece 17 is machined such as drilling at a predetermined angle. The chuck mount 3 is removed from the base body 1 and the axis of the chuck portion 7 is removed. Is placed above and fixed to the vise 110 for processing work.

Therefore, the chuck mount 3 is attached to the vise 110.
It is possible to perform drilling work at a predetermined angle only by fixing it to, and the setup work is extremely easy.

[0021]

As is apparent from the above description, the indexing jig of the present invention has a base body and a chuck portion detachably supported by the base body and capable of indexing at a plurality of angular positions. The chuck base and the center base detachably supported by the base body allow it to be used in various usage forms, and since it is made compact and lightweight, its workability is extremely high.

[Brief description of drawings]

FIG. 1 is a perspective view showing an indexing jig of the present invention.

FIG. 2 is an explanatory view showing an example of use of the indexing jig of the present invention in a partial cross section.

FIG. 3 is an explanatory view showing a second usage example of the indexing jig of the present invention.

FIG. 4 is an explanatory view showing a third usage example of the indexing jig of the present invention.

FIG. 5 is an explanatory view showing a fourth usage example of the indexing jig of the present invention.

[Explanation of symbols]

 1 base body 2 chuck base 6 indexing member 7 chuck part 8 plunger 11 center base

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshihiko Onishi 15-1 Naeshiro-cho, Mizuho-ku, Nagoya City Brother Industries, Ltd.

Claims (2)

[Claims] 1. A base main body, a chuck base detachably supported by the base main body and having a chuck portion that can be indexed at a plurality of angular positions, and a center base detachably supported by the main body. Indexing jig. 2. The chuck base is provided with an indexing member provided with positioning holes at predetermined angles, and a positioning pin engageable with the positioning holes.
The indexing jig described.