JPH0123274B2 - - Google Patents

Description

Claim 1 Used when a plurality of workpieces are simultaneously processed by a machine tool between two fixing jaws,
The support member is a wave-shaped band having spring elasticity, and the side edges of the waveform of the band extending perpendicularly to the fixing direction form a support surface. A support member used to place the item at an accurate height.

2. The support member according to claim 1, wherein the width of the band is precisely processed or cut to a predetermined height.

Specification The present invention is comprised of: sandwiched between two fixing jaws;
The present invention relates to a support member that accurately places a plurality of workpieces at a predetermined height when the workpieces are processed by a machine tool.

Prior Art Fixing parts such as steel plates that must be precisely machined to a predetermined height in a vise is difficult, especially when dealing with a bundle of parts of this type, because it is difficult to fix these parts to the same height all the time. Since it is difficult to do this, it has been pointed out as one of the problems in processing technology. To solve this problem, it is known to use a combination of support members in the form of plate pieces with precisely machined height and thickness. The plate pieces prepared as a set in this way must be precisely manufactured to predetermined tolerances in height and thickness. Further, when processing workpieces having various thicknesses, the required height dimension must be determined by combining a set of plate pieces with different thicknesses as parameters. This requires the provision of a large number of plate pieces and is therefore expensive. In addition, especially when handling thin workpieces, clamping operations can be troublesome, as there is a risk of the workpiece falling during clamping operations, for example between the movable jaw of a vise or fixed vise and such a plate piece. It is. Such known supporting parts must have a width equal to the distance between the fixing bars necessary to place the workpiece, since it is necessary to move the fixing bars to achieve the fixing. . It is therefore necessary to provide a large number of supporting parts of different widths (depending on the thickness of the bundle of workpieces to be fixed).

DESCRIPTION OF THE INVENTION The object of the invention is to provide a support part which requires a small number of parts and which does not have the disadvantage of failing to position the workpiece in the correct position.

The above object, according to the invention, is a band with spring elasticity in which the supporting part is shaped in a corrugated manner,
This has been achieved by configuring the support part in such a way that the wavy side edges (8a in FIGS. 3 and 4) extending perpendicularly to the fixing direction form a support surface.

With support parts of this type, it is possible to hold and position the part to be machined precisely at a predetermined height during the entire clamping process. This is because the support part according to the invention stretches over the entire space between the two jaws and can be compressed due to its corrugated shape, so that it always maintains a supporting surface between the two jaws. This is because it can be done. According to the above-described configuration, the support member does not need to be precisely machined to have a thickness, and it is sufficient to precisely machine the support member to a predetermined height. In the present invention, the parameter "thickness" has lost its meaning, so that the support part according to the invention can completely replace the conventional support parts consisting of multiple plate pieces of the same height. can be provided. This results in considerable savings in terms of costs and, in addition, makes it possible to carry out the fixing operation very simply and easily.

[Brief explanation of drawings]

The present invention will now be described in detail with reference to the accompanying drawings, which illustrate one embodiment of the invention.

FIG. 1 is a plan view of the vise with the clamp jaws open.

FIG. 2 is a top plan view of a bundle of parts to be machined to a predetermined height.

FIG. 3 is a front view of the vice shown in FIG. 1 with the movable and fixed elements and the bundle of workpieces shown in FIG. 2 removed;

FIG. 4 is a side view showing a state in which a workpiece is fixed to the vice shown in FIG. 1.

5 is a partial plan view of the vice shown in FIG. 4; FIG.

Explanation of each drawing The attached drawing shows the fixed jaw 2 and the support base 3.
This shows a conventional vice 1 consisting of a movable jaw 5 and a hand-cranked handle for moving the movable jaw 5. A spring steel band 8 that is precisely polished to a predetermined height or cut to a predetermined width is inserted between the fixed jaw 2 and the movable jaw 5. The waveform is adapted to fill the space between both posts 2 and 5a. Therefore, a bundle of steel plates 9 to be processed to a predetermined height is placed on the spring steel band 8, each bottom surface of the steel plates 9 is brought into contact with the side edge 8a, and then the hand turning handle 6 is turned. By doing so, the movable jaw 5 is moved toward the fixed jaw 2. When operated in this way, the spring steel band placed in the space between the two jaws is compressed into a corrugation that is even shorter than the one shown, and the steel plate 9 to be processed is compressed between the two jaws 2 and 5. The bundle can be grasped and fixed. In this way, a bundle of steel plates can be precisely polished or milled to a predetermined height.

If the bundle of steel plates is very thick, use two spring steel bands as described above. The same spring steel band 8 may be stacked in upper and lower layers depending on the required height. Therefore, the supporting area of the spring steel band 8 is
The wavy shape of the spring steel band connects both legs 2 and 5.
It occupies the space between the two jaws 2 and 5, and is set to have a width sufficient to prevent the steel plate to be processed from falling between the jaws 2 and 5.