KR100897122B1 - Rotary jig for grinding machines - Google Patents

Abstract

The present invention relates to a rotary jig for a grinding machine, wherein a rotating jig is inserted into a fixed body mounted on both sides of a jig main body horizontally formed on the ground, and a block jig having a plurality of V-block portions formed on both sides of the rotary jig is provided. It relates to a rotary jig for a grinding machine that can be inserted and fixed so that the V-blocks need to be replaced during each grinding process.

As a result, the area in which the jig is installed and the replacement time of the jig are reduced to improve workability and operation rate, and the number of jig required for various types of shaft processing is reduced to reduce production and installation costs.

Grinding Machine, Jig, V-Block, Rotary Machine, Fixture, Shaft, Side Groove

Description

ROTARY JIG FOR GRINDING MACHINES}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary jig for a grinding machine, and more particularly, to a block jig having a plurality of V-block portions formed on both sides of a fixed body mounted on both sides of a jig main body horizontally formed on the ground, wherein a plurality of V-block portions are formed. The rotary jig for a grinding machine can be inserted and fixed to reduce the need to replace the V-block every grinding process.

In general, a workpiece processing machine, for example, a grinding machine for grinding a workpiece by rotating a grindstone at high speed, requires a grinding jig for a grinding machine that fixes the workpiece during grinding processing.

Such a grinding jig for a grinding machine may vary in type depending on the shape and processing form of the workpiece to be processed, and may also vary according to the number of workpieces to be processed.

In particular, the jig used in the shaft outer diameter grinding process of the manual transmission produces six types of shafts in one common line, and the change of the line is required due to the difference in the shape of the shaft every item change.

1 is a view illustrating a replacement method of a jig for a conventional grinding machine.

As shown in Figure 1, disassembling the existing V-block 110 equipped with a shaft 100, and replace with a dedicated V-block 120 for grinding processing whether the center position and machining shaft 130 seating Check it.

Whenever this line change is made, there is a problem that the V-block on which the shaft is mounted is replaced according to the processing item, thereby increasing the labor maneuver and the line change time.

This is because the shaft of the manual transmission has a difference in length and outer diameter, making it difficult to share the V-block.

Accordingly, the present invention has been invented to solve the above-described problems, the rotor is inserted into the fixed body mounted on both sides of the jig main body formed horizontally on the ground, the plurality of V-blocks As the block jig formed is inserted and fixed, the area in which the jig is installed and the replacement time of the jig are reduced to improve workability and operation rate, and the number of jigs required for various types of shaft processing is reduced to reduce production and installation costs. The purpose is.

The present invention for achieving the above object is a rotary jig for a grinding machine,

A jig body formed on a flat plate horizontally on the ground;

Fixing bodies are formed on both sides of the upper jig body in the longitudinal direction, the through-hole is formed in the center;

A cylindrical rotor inserted into the through hole of the fixed body and having a plurality of pin holes formed at a side thereof;

It is mounted on both sides of the rotor, characterized in that consisting of a block jig is formed a plurality of different V-blocks along the circular arc from the outside.

In a preferred embodiment, the rotator is characterized in that the pin is fixed to the fixture.

In another preferred embodiment, the V-block portion of the block jig is characterized in that the rectangular groove is formed at the point where both inclined surfaces meet so that the shaft is seated.

As seen above, the rotary jig for a grinding machine according to the present invention provides the following effects.

First, the installation space of the block jig is reduced by providing a plurality of different V-block roles with only one rotary jig without an extra V-block,

Second, the block can be replaced by a simple operation using the rotation method, thereby reducing the exchange time of the block to improve workability,

Third, the number of jigs used in the automatic line is reduced to reduce the production and installation costs.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view of a rotary jig for a grinding machine according to the present invention, Figure 3 is a side cross-sectional view of the rotary jig for a grinding machine according to the present invention.

The jig body 200 is formed of a flat plate horizontal to the ground so that the load of the item and the jig, such as processed.

The fixing body 210 is formed at both ends of the upper part of the jig main body 200 to support the rotor 220.

In addition, the fixing body 210 has a through hole 230 is inserted into the rotor 220, the rotor 220 is optionally fixed by the pin 240 in a plurality of directions.

Here, the through hole 230 is formed in a circular shape so that the rotor 220 is rotated, it is preferably formed larger than the diameter of the rotor 220.

The rotor 220 is formed in a cylindrical shape that is inserted into the through-hole 230 of the fixing body 210, the side of the block jig 250 to be coupled to the fixing body 210 with a pin 240 during processing It is preferable that as many pinholes are formed as the number of V-block portions 290.

In addition, when the rotation of the rotor 220, the block jig 250 also rotates with the rotor 220, the protrusion 260 is formed on one side of the rotor 220 coupled to the block jig 250, block jig ( It is inserted into and fixed to the center hole 270 of 250.

Here, the pin 240 is inserted from the side of the fixed body 210 when the shaft is grinding, the fixed body 210 and the rotor 220 are coupled, and the other shaft is separated during the machining of the rotor 220 It is possible to rotate in the through-hole 230 of the fixture (210).

The block jig 250 has a center hole 270 formed at the center thereof so as to be coupled to the rotor 220, and a plurality of V-block portions 290 are formed along the arc at the outside thereof.

In addition, the plurality of V-block portions 290 become a portion on which a machining shaft is mounted.

Here, the plurality of V-block portions 290 is preferably made of six when the manual transmission shaft processing, the shape of the V-block portion 290 is preferably changed depending on the shape and diameter of the machining shaft. .

In addition, it is preferable that a square groove 280 is formed at a point where both inclined surfaces of the V-block portion 290 meet so that the shaft having a plurality of side surfaces is easily seated.

In addition, the distance between the block jig 250 of both sides is preferably designed differently depending on the length of the shaft seated on the block jig 250.

4 is an operation of the rotary jig for a grinding machine according to the present invention.

As shown in FIG. 4, the shaft 400 to be ground is mounted on the V-block portion 290 of both block jigs 250 that match the diameter and shape of the shaft and is ground by a grinding machine.

Thereafter, the pin 240 inserted into the fixture 210 is removed to rotate the rotor 220 such that the V-block portion 290 of the shaft 410 to be subjected to the next grinding process is positioned upward. After fixing the rotor 220 and the fixed body 210 to 240 again, the machining shaft 410 is mounted.

This process is repeated until a plurality of shafts of different shapes and lengths are all ground.

Here, the number or initials of each shaft is displayed at the bottom of the square groove 280 in the V-block portion 290 so as to prevent confusion of workers when selecting the V-block portion 290 corresponding to each shaft. desirable.

1 is a view showing a replacement method of a jig for a conventional grinding machine;

2 is a perspective view of a rotary jig for a grinding machine according to the present invention;

3 is a side cross-sectional view of a rotary jig for a grinding machine according to the present invention;

Figure 4 is an operation of the rotary jig for a grinding machine according to the present invention.

<Description of the symbols for the main parts of the drawings>

200: jig main body 210: fixed body

220: rotating machine 230: through hole

240: pin 250: block jig

260: protrusion 270: center hole

Claims (3)

In the rotary jig for grinding machine, A jig body formed on a flat plate horizontally on the ground; Fixtures are formed in the vertical direction on both sides of the upper jig body, the through-hole is formed in the center; A cylindrical rotor inserted into the through hole of the fixed body and having a plurality of pin holes formed at a side thereof; Rotating jig for a grinding machine, characterized in that the jig is mounted on both sides of the rotor, the block jig is formed with a plurality of different V-blocks along the circular arc from the outside. The rotary jig for a grinding machine according to claim 1, wherein the rotator is fixed to the fixed body with a pin. The rotary jig for a grinding machine according to claim 1, wherein a square groove is formed at a point where both inclined surfaces meet on the V-block portion of the block jig.

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