JPH0538648A - Processing method - Google Patents

Abstract

PURPOSE:To detain a work to be processed certainly without risk of damaging by immersing the work in a liquid, cooling the liquid for freezing and solidification, and thereby generating fixation. CONSTITUTION:A work to be processed 1 is immersed in a liquid 3, and the whole portion immersed 1b is fixed by cooling the liquid 3 for freezing and solidification. This prevents the fixed portion 1b from damage caused externally and precludes risk of the portion to be processed 1a moving due to insufficient grasp. It is also practicable to grasp fast a plurality of works in the same shape at their identical parts. Further, heat emission is suppressed which is likely at the time of processing due to low temp. solidification of the liquid 3, which should prevent deterioration of the work 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention fixes a work piece that is difficult to fix and facilitates working with a tool or the like, or processes a plurality of work pieces when manufacturing many same things. The present invention relates to a method of processing a work piece that can be easily positioned and fixed to improve manufacturing efficiency.

[0002]

2. Description of the Related Art Conventionally, when a work piece is machined with a tool or the like, an unworked part of the work piece is fixed by a gripping tool such as a chuck or a vise so that the part to be worked does not move. Is being processed.

[0003]

However, depending on the object to be processed, fixing it with a chuck or the like may cause external damage or damage, and when processing a number of the same objects, fix each one in turn. However, there is an inconvenience in that the manufacturing efficiency is lowered.

The present invention has been made in view of the above circumstances. The object to be processed is fixed by a gripping force obtained by cooling and solidifying a liquid, and processing is performed without causing external damage, or a plurality of objects is processed. It is an object of the present invention to provide a method of gripping and fixing a workpiece and efficiently processing it.

[0005]

In the processing method of the present invention, it is a problem that the object to be processed is placed in a liquid, the liquid is frozen and solidified and fixed, and the portion to be processed of the object is processed. It was taken as a solution.

[0006]

Since the present invention has the above-described structure, the work piece is firmly gripped over the entire part immersed in the liquid, and the part to be processed is It does not move due to weak gripping force. It is also possible to grip and fix the same portion of a plurality of same shapes. Furthermore, the low temperature solidification of the liquid suppresses the heat generated during processing and prevents deterioration of the processed body.

[0007]

1 and 2 show an embodiment of a processing method according to the present invention, in which reference numeral 1 is a workpiece.
When the workpiece 1 is to be processed, the unprocessed portion 1b is gripped and the processed portion 1a is held stationary.

Depending on the shape of the unprocessed portion 1b to be gripped, it may not be possible to lock it, or it may be difficult to lock the processed portion so that it does not move.

In such a case, the unprocessed portion 1b of the work piece 1 is put into the holder 2 of an appropriate size, the liquid 3 is poured into the holder 2, and then the liquid is cooled and solidified.
Allows the processed portion 1a to project from the liquid surface and is firmly gripped, so that free processing with a tool or the like becomes possible.

In the above processing method, when the shape of the engaging portion is weak and cannot withstand the engagement of the chuck or the like, or the material is
It is preferably used for processing a workpiece which is complicated in shape and difficult to hold and hold when it is damaged by being locked by a chuck or the like. Further, the holder 2 to which the object to be processed is fixed can be engaged with the chuck for processing.

The liquid used in the above method is not particularly limited as long as it is cooled and strongly solidified without damaging the work piece by corrosion or the like, but water is easy to handle and damages the work piece. Even if heat is generated during processing, the heat is easily absorbed, which is preferable.
In this case, the water is supercooled, subjected to processing, and recooled before reaching 0 ° C.

FIGS. 3 to 8 show another embodiment of the present invention in which a large number of products having the same shape are processed to efficiently manufacture the same product.

Reference numeral 11 in the drawing is a cup-shaped cap body made of a thin metal plate or the like by press molding and the like, which is composed of a cylinder portion 11a and a bottom portion 11b. This cap body 11
A protrusion 12 is provided substantially in the center of the bottom 11b of the.

By using this cap body 11, the projection 1
2 is polished to form a thinner film-like portion 13, a mouth of a container or the like is closed, and a cap 14 capable of tearing and opening the film-like portion 13 as needed is efficiently manufactured. An example will be explained.

Reference numeral 21 is a protrusion 12 of the cap body 11.
It is a holder used for processing the to form the film portion 13. The weir 22 is provided around the upper surface of the holder 21 so that the liquid can be accumulated at a desired depth.

The flat portion 23 surrounded by the weir 22 is provided with a jig 24 for a cap having a shape fitting the upper portion into the cap body 11, the female screw having a hole formed in the flat portion 23, and the jig. It is screwed by a screw 25 consisting of a male screw of
By adjusting the screw 25, the upper end portion 2 of these jigs 24
4a are fixed so that they are on the same horizontal plane.

After the cap body 11 is mounted on the head of each of these jigs 24, the liquid 3 is injected into the flat portion 23, and a predetermined dimension including the protruding portion 12 of the cap body 11 is exposed. ..

When this is cooled, the liquid 3 is cooled and solidified,
The cap body 11 is firmly fixed to the holder 21. When the protrusion 12 of the cap body 11 fixed to the holder 21 is ground by a horizontally movable grinder 26,
The protrusions 12 of each cap body 11 are evenly polished to form a film-like portion 13, and the cap 14 is efficiently manufactured.

[0019]

As described above, according to the processing method of the present invention, the object to be processed is immersed in the liquid, and the liquid is cooled, frozen and solidified to be fixed. Therefore, even if the strength of the fixed portion is weak, the whole is frozen. Since it is held in a solid state, it can be securely locked and held without damaging the workpiece, and the portion to be processed does not move and processing is easy. Even if the material is easily deteriorated by heat or damaged by heat, it is not damaged. Further, a workpiece having a complicated shape can be easily and surely held and is easy to process.

Further, in the case of processing the same shape into the same product, the same shape is aligned with the holder and the portion to be processed is projected from the liquid surface, cooled and solidified to be firmly fixed, and aligned. Since the same processing is applied to the object, the work efficiency is good, and particularly, the processing performed by horizontal movement of the grinder is performed with extremely high efficiency.

[Brief description of drawings]

FIG. 1 is a perspective view of a workpiece that is difficult to lock with a chuck or the like.

FIG. 2 is a vertical cross-sectional view showing a state in which a liquid is put into a holder and dipped in the holder of FIG.

FIG. 3 is a perspective view of a cup-shaped cap body that includes a cylindrical portion and a bottom portion and has a protrusion formed at the center of the bottom portion.

4 is a sectional view taken along the line IV-IV of FIG.

5 is a view corresponding to FIG. 4 of the cap in which the bottom projection of the cap body of FIG. 4 is polished into a film-like portion.

FIG. 6 is a plan view of a holder.

7 is a sectional view taken along the line VII-VII in FIG.

FIG. 8 is a diagram showing a method of manufacturing a cap by mounting a cap on a jig, injecting a liquid, cooling and solidifying the cap to fix the cap, and polishing the film with a horizontally moving grinder to form a film portion.

[Explanation of symbols]

 1 Workpiece 1a Processed part 1b Non-processed part 2 Holding tool 3 Liquid 11 Cap body 11a Cylindrical part 11b Bottom part 12 Protrusion part 13 Membrane part 14 Cap 21 Holding tool 22 Weir 23 Flat part 24 Jig 24a Upper end part 25 Screw 26 Grinder

Claims (1)

[Claims] 1. A processing method, wherein a workpiece is placed in a liquid, the liquid is frozen and solidified and fixed, and a processed portion of the workpiece is processed.