KR900001241Y1 - Fixture for roller grinding - Google Patents

Abstract

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Description

Roller outer grinding fixture

1 is an exploded perspective view of the present invention.

2 is a front view of some incisions of this design.

3 is a cross-sectional view of the mounting state of the roller.

* Explanation of symbols for main parts of the drawings

1 body 2 rotation axis

3: round jaw 4: spring collar

5: friction surface 6: tapered surface

7: relief groove 8: split groove

9: tapered circumferential surface 10: expansion rod

11: extension bolt 12: center hole

13: screw hole

This invention relates to a roller outer diameter grinding fixture which can be used to fix the roller using a central hole in the outer diameter grinding operation.

In order to grind the outer diameter of a processing roller such as an electric wire drawing roller or a rolling roller in a conventional cylindrical grinding machine, the chuck of the grinding machine is mounted in the hole in the center of the roller.

For this type of installation, the power supply and straightness of the roller's center hole should be checked, and it was difficult to hit the groove of the roller, and a jaw chuck (chuck with one toenail) was installed in the center hole of the roller. When the chamfer scratches or dents on the inner circumferential surface of the hole, and foreign matter on the inner circumferential surface of the hole, it is pointed out that there is an irrational point such as not only accurate outer diameter machining but also lengthening the preparation time of the polishing operation.

This design is to improve the irrational point in the above-mentioned roller polishing operation, and it is easy to install the roller, and it is possible to quickly and precisely adjust the center of the groove of the main groove, and also to leave the mounting trace so that it does not leave the mounting roller. It is an object of the present invention to provide an external polishing fixture that can realize standardization, specialization and simplification of work.

This invention will be described in detail with reference to the accompanying drawings.

The rotary shaft 2, which is held by the chuck of the grinder in the center of one side of the disc-shaped body 1, is fitted in the state close to the center hole R ': diameter D of the processing roller R in the inside of the annular projection 3 of the other side. The drum-type spring collar (4: outer diameter d) constitutes.

The spring collar 4 is integral with the body and has a circular arc frictional surface 5 at right angles to the body, an inner tapered surface 6 constituting an extension hole of the outer light inner narrow, a root relief groove 7 on the outer circumferential surface, and a plurality of lights. It has an interval dividing groove 8.

The taper circumferential surface 9 of the extension rod 10 is connected to the tapered surface of the spring collar, and the extension bolt 11 is fitted into the screw hole 13 of the body center through the hole 12 of the extension rod center. will be.

Reference numeral 14 is a washer.

The outer diameter grinding operation of the roller is to fix the rotation axis (2) of the fixture centered on the chuck (not shown) of the cylindrical grinder, and then install the roller (R) on the spring collar (4) and polish the outer circumferential or outer circumferential groove of the roller. To do the work.

Loosen the extension bolt 11 in the mounting operation, and then insert the spring collar 4 into the center hole R 'of the roller R to contact the round projection 3 on the side of the roller R. The center of the roller and the spring collar coincide with each other by coinciding the outer diameter d of the drum-shaped spring collar, and the position of the roller is determined by the side surface of the roller R touching the round bar 3.

When tightening the extension bolt 11 again, the roller is integrated with the fixture by the radial extension action of the drum-type spring collar 4, and at this time, a minute clearance between the spring collar and the center hole of the roller is not allowed. The posture of R) is corrected correctly.

Observing the expansion operation of the drum-type spring collar 4, the tightening of the bolt 11 gives a sliding motion between the tapered surface 6 and the tapered circumferential surface 9, so that the spring collar 4 outside the relief groove 7 Since the circular friction surface 5 of the outer circumference of the spring collar is pressed against the inner circumferential surface of the central hole R 'of the roller, the fixture and the roller R are integrated.

This spring collar and the roller is fixed by being pressed against the inner circumferential surface of the center hole of the roller by almost the front surface of the circular friction surface (5) as well as leaving no mounting marks on the inner wall surface of the roller hole.

After polishing, the spring collar 4 may be contracted by removing the bolt 11 and moving the extension rod 10 to the outside, and the roller may be separated from the spring collar.

As mentioned above, this design can fix the roller to the grinding chuck by using the center hole, and it is easy to install and remove the roller, and it is possible to precisely process the mounting posture and leave the mounting trace on the center hole of the roller. There is an effect of providing a roller outer diameter grinding fixture.

Claims (1)

The outer circular arc frictional surface 5, the inner tapered surface 6, the inner relief groove 7 and the plurality of equidistant divisions which are integral with the body and are perpendicular to the inside of the annulus 3 of the body 1 having the rotating shaft 2, respectively. An extension rod 10 having a groove 8 and forming a spring collar 4 close to the center hole of the roller, and to which the tapered circumferential surface 9 is connected to the tapered surface 6, the bolt 11 is extended. Roller outer diameter grinding fixture which can be pressurized by.