JPS6341712B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a ceramic chucking device used when processing ceramic materials.

[Technical background of the invention and its problems]

When processing a ceramic material with a processing machine such as a surface grinder or a slicing machine, the ceramic material must be held and fixed on the table of the processing machine. Conventionally, a magnetic chuck has been frequently used as a means for holding and fixing the ceramic material on the table. However, since ceramic materials are non-magnetic, they cannot be directly attracted to a magnetic chuck. Therefore, a magnetic material such as a steel plate is bonded to the ceramic material, and the magnetic chuck is attached to the magnetic chuck via the steel plate.

Therefore, when processing ceramic materials, work for adhering the steel plates and removing them after processing is involved, resulting in a drawback that work efficiency is extremely low. In addition, the adhesion of the steel plate is poor,
There were also cases where sufficient machining accuracy could not be obtained.

In order to eliminate these drawbacks, it has been considered to use a vice-type chuck device in place of the magnetic chuck. The vise-type chucking device has a fixed piece and a movable piece, which clamp and fix the ceramic material. However, since the ceramic material is brittle, there is a risk of damage if it is held between the fixed piece and the movable piece. Moreover, ceramic materials tend to warp due to the heat during sintering.
It may not come into close contact with the fixed piece or the movable piece and cannot be securely fixed. Therefore,
For these reasons, vise-type chucking devices have rarely been used.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a vise-type chucking device that can securely clamp and fix ceramic materials without damaging them.

[Summary of the invention]

In this invention, by providing an elastic member on the surfaces of the fixed piece and the movable piece provided on the device body that sandwich the ceramic material, the elasticity of the elastic member can reliably prevent the ceramic material from being damaged. It is designed so that it can be held in place.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Reference numeral 1 in FIG. 1 is the main body of a vise-type chucking device. The main body 1 has a rectangular planar shape, and has a pair of parallel guide portions 2 spaced apart from each other and formed along the longitudinal direction. A recess 3 is formed between the pair of guide parts 2 . A fixing piece 4 is fixed to one longitudinal end of the guide portion 2 with screws 5 perpendicular thereto, and a support wall 6 is erected at the other end. A hydraulic or pneumatic cylinder 7 as a driving source is attached to the outer surface of the support wall 6, and its operating shaft 8
protrudes into the recess 3. Further, a movable body 10 having a mounting portion 9 that fits into the recess 3 is slidably provided in the guide portion 2 . A movable piece 11 is attached and fixed to the upper surface of this movable body 10 with a screw 12. Further, the operating shaft 8 of the cylinder 7 is connected to the mounting portion 9. Therefore, along with the movable body 10, the movable piece 11
is adapted to be driven along the guide portion 2 by the operating shaft 8.

A large number of mounting grooves 13 are formed at predetermined intervals in the longitudinal direction on one side surface of the fixed piece 4 and the movable piece 11 that face each other. Elastic members 14 made of rubber, soft synthetic resin, or the like are fixedly attached to these mounting grooves 13 so as to slightly protrude from the side surfaces. Then, a ceramic material 15 sintered into a rectangular parallelepiped shape shown by chain lines in FIG. 1 is clamped and fixed on the opposing side surfaces of the fixed piece 4 and the movable piece 11.

According to the chucking device configured in this way, the ceramic material 15 is held between the fixed piece 4 and the movable piece 11 by the elastic member 14 attached to the fixed piece 4 and the movable piece 11 being in elastic pressure contact with each other. Fixed. Therefore, not only is the ceramic material 15 not easily damaged due to the elasticity of the elastic member 14, but even if the surface bonded to the fixed piece 4 or the movable piece 11 is warped, the elastic member 14 is elastic. Since it deforms and comes into close contact with the ceramic material 15, the ceramic material 15 is firmly clamped and fixed.

Note that this invention is not limited to the above embodiment,
For example, when the shape of the ceramic material 15 is circular in cross section, the fixed piece 4 and the movable piece 11 may have opposing side surfaces formed into arcuate surfaces as shown in FIG. The fixed piece 4 and the movable piece 11 are arranged according to the shape of the material 15.
You can replace it with one of a different shape.

〔Effect of the invention〕

As described above, the present invention has the surfaces of the fixed piece and the movable piece provided on the main body of the device that hold the ceramic material in a shape that corresponds to the shape of the outer edge of the ceramic material, and that the elastic members are intermittent on the surfaces. Since the elastic member is provided in a central and partially protruding manner, the ceramic material can be reliably and firmly clamped without damaging the ceramic material due to the elasticity of the elastic member. In addition, the surface that holds the ceramic material has a shape that corresponds to the outer edge of the ceramic material, and elastic members are provided on that surface intermittently and partially protruding, so that the ceramic material can be held securely and the outer edge Even if there is a burr or warp on the ceramic material, by positioning the burr or warp between the intermittent elastic members, the ceramic material can be held well without being damaged.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view showing one embodiment of the invention, FIG. 2 is an enlarged perspective view of the main parts, and FIG. 3 is a perspective view of a fixed piece and a movable piece showing another embodiment of the invention. It is. 1...Main body, 4...Fixed piece, 11...Movable piece,
14...Elastic member, 15...Ceramics material.

Claims (1)

[Claims] 1. A ceramic chucking device that removably grips a plate-shaped ceramic material includes a fixed piece that is fixedly provided, a movable piece that is provided that can move toward and away from the fixed piece, and this movable piece. a driving means for driving in the approaching and separating directions, and the fixed piece and the movable piece are provided with clamping surfaces having a shape corresponding to the shape of the outer edge of the ceramic material,
and a plurality of piece-like elastic members are embedded in the clamping surfaces of the fixed piece and the movable piece at predetermined intervals along the longitudinal direction of the clamping surfaces, with some parts protruding;
A ceramic chucking device characterized in that the outer edge of the ceramic material is directly held by the protrusions of these elastic members.