JPS6279931A - Work chuck plate for non-magnetic material work - Google Patents

Abstract

PURPOSE:To promptly and well fix a non-magnetic material, when its surface grinding is performed, by forming a thin uniform adhesive agent layer on one surface of a magnetic material plate of good plane degree, parallel degree and surface roughness to be protected by an easily exfoliating sheet and prepar ing the magnetic material plate as a chuck plate. CONSTITUTION:A magnetic material member 1, forming its upper and bottom surface in good plane degree, parallel degree and surface roughness, is composed of SS41, S45C, etc. determined by required specification, and a thin adhesive agent layer 2 of epoxy system or the like, determined by the required specification, is uniformly applied to one surface of the magnetic material member 1. Next a sheet 3 of easy exfoliation is glued to a surface, and the magnetic material member of various sizes is prepared as a chuck plate. Accordingly, when a non-magnetic material of various sizes and required machining accuracy performs surface grinding, the non-magnetic material is adhesively attached and fixed to the adhesive agent layer 2 by exfoliating the sheet 3, thereafter the opposite surface of the magnetic material member 1 is fixed to a magnet chuck on a machining table, and high quality fixing can be performed in a short time.

Description

[Detailed Description of the Invention] [Field of Sedentary Work] The present invention is directed to a non-magnetic workpiece that can be fixed to a magnetic chuck in a short time and with high quality when surface-grinding a non-magnetic material such as ceramics. Regarding the work chuck great.

[Conventional technology]

In particular, when surface-grinding a thin non-magnetic workpiece, it is difficult to mechanically fix the workpiece to a processing table.

For this purpose, adhesive is usually applied to a magnetic plate and the workpiece is glued onto this. After that, the workpiece is indirectly fixed by a magnetic chuck on the processing table.

[Problem that the invention seeks to solve]

Conventional bonding work has the following problems.

1) Before applying adhesive to the magnetic plate, it is necessary to perform surface treatment such as degreasing on the surface of the magnetic plate in order to strengthen the adhesive strength of the adhesive. Complete processing such as degreasing takes time. As a result, the price of the workpiece will rise.

2) It is important to uniformly and thinly apply the adhesive to the surface of the magnetic material in order to maintain good flatness of the ground surface of the workpiece. In other words, if the work is applied unevenly and thickly, the thin workpiece will be adhered to the magnetic plate in a deformed state in order to press and bond the workpiece, and the flatness of the workpiece will be maintained at the final stage. Can not.

In a place where there is no special equipment for applying adhesive and there is no or little measurement of the adhesive layer, it is practically impossible to reduce the thickness variation to less than the μm unit. .

The present invention is designed to meet the needs of each grinding site in terms of size and finish so that it is not necessary to perform the above-mentioned work at each grinding site.
The present invention aims to provide a workpiece chuck plate for non-magnetic workpieces that has excellent adhesive strength, adhesive thickness, accuracy, etc.

[Means for solving problems]

The present invention provides: (1) a magnetic member with good flatness, parallelism, and surface roughness on its upper and lower surfaces; (2) a thin and uniform adhesive layer coated on one surface of the magnetic member; 3) A workpiece chuck plate for a non-magnetic workpiece, characterized by comprising a sheet provided on the adhesive layer, protecting the adhesive layer, and being peelable from the adhesive layer.

[Effect]

If you prepare the work chuck plate mentioned above in advance,
By using the above-mentioned standard products for manufacturing the magnetic plate and pre-treating the pot for applying adhesive, the cost can be reduced significantly, contributing to the spread of fine ceramics and the like.

The reason for applying a thin layer of adhesive is to prevent this from happening, as when pressing the workpiece together, if the adhesive is too thick, the adhesive at the bottom of the pressed area will escape, causing the workpiece to deform and become glued. This is because there is.

〔Example〕

FIG. 1 is a view from the f (11) side of a work chuck plate showing an embodiment of the present invention.

In FIG. 1, 1 is a magnetic member made of a plate such as 8E341.13450, and the parallelism of the upper and lower surfaces and the flatness and surface roughness of both surfaces are well finished.

Reference numeral 2 denotes an adhesive such as an epoxy adhesive, and forms a thin and uniform adhesive layer on the magnetic member 1 .

The quality of the magnetic member 1 and the adhesive layer is determined depending on the required specifications.

3. An expanded sheet that protects the surface of the adhesive layer until a non-magnetic material workpiece (not shown) is bonded, and that can be easily peeled off from the adhesive layer 2 when bonding the non-magnetic material. be.

The above structures are prepared in various sizes. By doing so, a surface treatment such as degreasing is performed on the nonmagnetic workpiece, which is selected from the above depending on the size of the nonmagnetic workpiece and its required processing accuracy, and after the sheet 3 is removed, the workpiece is crimped.

In the case of adhesives that require heating, heat treatment is performed and the magnetic chuck on the processing table of the surface grinder is used to
Fix the non-magnetic workpiece.

〔Effect of the invention〕

There is no need to prepare chuck plates at each site. Gluing work is greatly reduced.

Therefore, the cost required for surface grinding of non-magnetic workpieces is reduced overall.

[Brief explanation of drawings]

FIG. 1 shows an a-plane view of a workpiece chuck plate according to an embodiment of the present invention. 1: FL material (board), 2: adhesive, 5: foil 9 paper (
Sheet) Sub-agents 1) Meifuku agent Ryo Hagiwara − Sub-agent Atsuo Anzai

Claims (3)

[Claims] (1) A magnetic member with good flatness, parallelism, and surface roughness of the upper and lower surfaces, (2) a thin and uniform adhesive layer applied to one surface of the magnetic member; (3) provided on the adhesive layer to protect the adhesive layer;
A workpiece chuck plate for a non-magnetic workpiece, comprising a sheet that can be peeled off from the adhesive layer.