JPS58217201A - End surface machining device for cylindrical work - Google Patents

Abstract

PURPOSE:To provide uniform chamfering or grinding for the end of a cylindrical work regardless of changes in roundness or thickness of said work. CONSTITUTION:A work A is firmly mounted on a fixed table with the axis in line with the axis of a face plate 2 and the end section placed between rollers 8 and 9. Both rollers revolve together with the face plate 2 round the axis of the plate while rotating on their own axes. Accordingly, the relative position of the end surface of the work A to a primary sliding table 5 is maintained almost constant, and thus, the relative position of the edge of a cutter B fitted to the sliding table is maintained constant in relation to the position of the surface to be machined, thereby providing uniform chamfering. When the roundness of a work is deteriorated, rollers 8 and 9 always respond to the amount of eccentricity with the sliding table 5 moved radially on the face plate 2 either outward or inward along a guide 4.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for chamfering or the like around the end face of a cylindrical workpiece.

In conventional devices of this kind, a cylindrical workpiece is rotated around its central axis, and a grinder is applied to the end face of the workpiece to chamfer it. Therefore, variations in the roundness and thickness of the workpiece cause unevenness in the machined surface, and in the worst case, it may not be possible to perform processes such as chamfering at all.

It is an object of the present invention to solve the above-mentioned problems and to provide an apparatus that can uniformly process a workpiece even if the roundness or thickness of the workpiece changes.

An embodiment of the present invention will be described below based on the drawings.6 In FIG. 1, a cylindrical workpiece A is fixed to a workpiece fixing table 1 with its central axis horizontal.

At both ends of this workpiece A, disk-shaped face plates 2 are installed so as to be rotatable around the shaft 2a via a rotating device 8, facing the ends and approximately concentric with the central axis. . A first sliding guide 4 extending along the radius of rotation is provided on the surface of these face plates 2 facing the fixture A.

A first sliding table 5 is slidably mounted on this. Further, on the surface of the first sliding table 5 facing the end of the workpiece A, the first sliding guide 44! ! ! A second sliding guide 6 is provided at the same position, and a second sliding table 7'' is slidably mounted on this.

1st. A pair of first slides 5.7 are connected to the second slide table 5.7 via shafts 8a and 9a parallel to the axis of rotation of the disc 2. The 20th-fifths 8 and 9 are rotatably provided to sandwich the ends of the workpiece A. Also, in response to changes in the thickness of the end portion of the workpiece A, an elastic suppressing portion 10 urges the pair of rollers 8.9 toward each other in a direction to constantly clamp the end portion of the workpiece A. is the first. Second
It is provided between sliding tables 5 and 7. That is, force id rod 1
0C loosely penetrates the first bracket lOa protrudingly provided at one end of the first sliding table 5 in the sliding direction (the inner end in the rotational radial direction of the face plate 20), and at one end of the second sliding table 7 in the sliding direction. The protruding second bracket 10blC is screwed and fixed, and ten coil springs are fitted to the guide rod 10C between these two brackets.

A cutting tool B such as a cutting tool is provided on the first sliding table 5 via a bracket B0. This cutter B is mounted in such a position that when the first row 8 comes into contact with the outer surface of the workpiece A, its cutting edge faces the outer circumferential corner of the end of the workpiece and can chamfer the core part. .

The operating state will be explained above.

The workpiece A is fixed on the fixing table 1 so as to be concentric with the axis of the face plate 2, and the 10th and 20th parts 8 and 9 are set in contact with the inner and outer surfaces of the workpiece, and the face plate 2 is rotated. - When the workpiece is rotated, the first roller and the 20th roller, while holding the end of the workpiece, contact the surface of the workpiece and revolve together with the face plate while rotating. Therefore, the relative position of the end surface of the workpiece A with respect to the first sliding table 5 is kept approximately constant, and the positional relationship between the cutting edge of the cutter B installed on the first sliding table and the machining surface is kept constant and uniform. Capable of chamfering. Here, when the roundness of the workpiece deteriorates, since both loaves 8 and 9 always pinch the end of the workpiece, the first sliding table 5 moves to the first sliding guide in accordance with the amount of eccentricity. 4 and move radially outward or inward of the face plate 2. In addition, for changes in the thickness of the workpiece, the splash J
This is handled by slightly moving the 20th-ra 9 together with the second sliding base along the second sliding guide 6 in the direction of the rotation radius of the face plate against O=&.

In addition, as another embodiment of the elastic pressing section 10, the roller 8
．． Either one of 9 may be made of an elastic material such as rubber, or the bearing for the shaft of the loaf may be made of an elastic material such as rubber. Furthermore, the workpiece itself may be rotated by a drive means such as a pulley with the face plate 2 fixed and the workpiece A attached to the outer periphery of the pulley and a bevel wound around the pulley. In this case, the workpiece is rotatably supported on the support base 1' via rollers or the like.

The present invention is applicable to polishing and other processing using other tools such as grinders and polishing pieces in addition to the cutter B. Furthermore, if a tool is attached to the second sliding table 7, it is possible to machine the inner corner of the workpiece. In addition, the second slider attached to the second sliding table 7
0-9 may be located outside of the workpiece A.

According to the present invention as described above, it has become possible to uniformly process chamfering, polishing, etc. on the end portion of a cylindrical workpiece regardless of changes in point circularity or thickness.

[Brief explanation of the drawing]

FIG. 1 is a partially cut away 111 view showing one embodiment of the present invention;
FIG. 2 is an enlarged sectional view of the main part. A--workpiece, 2--face plate, 4--first sliding guide,
5...First sliding table, 6--Second sliding id, 7...
2nd sliding table, 8・-10th-wo, 9-・20th-ra, 1
〇－・Elastic Pressure Department Agent Patent Attorney Shinpei Inukai

Claims (1)

[Scope of Claims] (])' A face plate provided facing the end face of a cylindrical workpiece and substantially concentric with its central axis; and a face plate provided on the face of the face plate facing the workpiece, the radius of rotation a first sliding guide extending upward; a first sliding table slidably mounted on the first sliding guide; and a surface of the first sliding table facing the end surface of the workpiece. j
a second sliding guide provided at the same position as the first sliding guide; a second sliding base slidably mounted on the second sliding guide; A pair of first pulsating plates are rotatably attached to the second pulsating table via an axis parallel to the axis of rotation of the face plate, and completely sandwich the ends of the workpiece. a 20th roller, an elastic suppressor provided between the first and second sliding tables and urging the pair of rollers mJ in a direction toward each other; A cylindrical body end face processing device (2) characterized in that it includes a tool attached to at least one of the second sliding tables. An end face processing device for a cylindrical body according to claim 1, which is rotatable.