JPS5942208A - Chuck - Google Patents

Abstract

PURPOSE:To prevent the inclination of a work caused by the roughness on the work, stress concentration and work chucking at deformed condition by fitting elastomer onto the clamp of a chuck. CONSTITUTION:Elastomer 18 is arranged in the middle part of the clamp surface 14 of a power chuck 10 in relation to the surface 14 of a work 20 with a very rough cast skin. The rough part 22 on the cast skin of the work 20 encroaches upon the elastomer 18, and the deformation of the rough part 22 is absorbed into the elastomer 18. Consequently, the concentrated load and deformation to the clamp surface by local contact with the rough part 22 are decreased and the work inclination is also reduced and then the contering of the work 20 is surely achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION Mitsuaki Ki is concerned with 1-1-1J-7-p-k in 1-notation 1-4:J position.

Conventionally, workpieces were clamped using a block, for example (,
f Figures 1 and 2 show 7IJ knee sea urchins.

Fig. 1 shows a so-called power jack '1 with a claw part split 333) in the circumferential direction of the shaft. r
What is the machining position in the machine tool area? (There is a Sera 1).

In addition, since Fig. 2 shows the generally used ':J-rets 1-1 dock 5, similarly, on the clamping surface 6 with a predetermined -j-pa, 'with the workpiece 4 centered]
Addition of track range - [Let's move to the position. .

However, in such conventional bush ivy, 1
For example, when lifting a cast workpiece, the unevenness of the cast surface of the workpiece may cause the workpiece to tilt, or the workpiece may become deformed due to stress being concentrated at certain points.
Ill? There was a problem with t-di I7 being tagged.

In view of these conventional problems, hot light was developed by CJJ. C゛, f workpiece is clamped to Kt-iPT in addition to the machine tool area. Inserting the elastic body' = IN J, S, [The purpose is to solve Problem 5j1] 1. Below, we will look at wood silicon in the drawing (explanation 1).

Fig. 3 shows a side view of the part shown in Fig. 3, and Fig. 4 shows a side view of -) (shown in Fig. 3).

"Mari" (explaining the 14th generation), Kimitsuaki's Rose-II Tsuku 10 is J to Boruto Kakime in the machine tool area at one end.
- Remove the clamp 12 that fixes the flange.
+ After 2, turn the divided split claw 11j to the right by the split groove 13 by 3 in the 1M direction, and make a small taper on the outer circumference of the claw 15 by -; A clamping surface 1/l is formed.

A band-shaped groove 1G is formed in the center of the crank 1 side 14 excluding both ends.
is formed in the direction of the axial circumference 1j, and an elastic body 18 having a wall thickness of ri iJ protruding from the clamping surface 14 is fitted into this band-shaped groove 16.Next, the operation will be explained.

Figure 5 is 3. /POWER JITTOCK 1 OF THE INVENTION ACCORDING TO FIG.
FIG. 1 is an explanatory diagram showing a two-young-like shape of a boot 17 with a workpiece 20 attached to it, and for example 1. Tsui, work?
0 clamp surface 17'I has a cast surface with many irregularities? I like to be fucked.

In contrast to the #lj II surface of the Soak 20, an elastic body 18 is installed in the center of the clamping surface 14 of the Power Boo IF Tsuk 10, so the workpiece can be enlarged as shown in Fig. The uneven portions 22 of the cast surface 20 are embedded in the elastic body 18 as shown, and the deformation of the uneven portions 22 is absorbed by the elastic body 18.

This tJ reduces the concentrated load and deformation due to local contact with the clamping surface of the uneven portion 22, and the workpiece 20 is placed on the clamping surface 14 by 10 (11.+i inclination is also reduced by 1). It is important to ensure the centering of the 1 node 20.

1. When inserting Soak 20 into Nobu Hiroshi Tsuk 10, the elastic body should be gently inserted into stitch A. It is important to prevent 1F scratches.

Furthermore, bullets↑! The I body I E3 absorbs the centering of the workpiece 20 which is 3.1 to the deformed C bar 1 no f-s. Centering of rework 20 is higher than lees 1α-(row <
, h ) Kotoka (゛kiru.

In addition, although the above-mentioned embodiment took the example of 3-) Barry ft and ivy with nails, the tree is limited to this, and the rule shown in the conventional example in FIG. Regarding 1~fl・tsuku (also, 3rd./
The same effect as the power fIT in FIG. 1 is performed by 1q.

Hereinafter, according to the present invention, in a chuck that clamps a soak at a load of 1N on a 1ft' fil machine, a lamp is installed in the center of the clamping surface, excluding both ends, on which the workpiece is placed. Since the C elastic body is installed to protrude from the surface, it is possible to handle workpieces that have unevenness caused by the casting surface.
Insert it into the tsuku (also in the casting ruroq, the uneven deformation is bullet 11)
[It is possible to reduce the local contact with the clamping surface of the f-dock (absorbed by the body) and reliably prevent the deformation of the f-dock or the inclination of the workpiece due to concentrated loads.

In addition, since there is a protruding C elastic body on the clamp surface, it is necessary to insert 1 knot into the f-17 vine and 1 ( ) on the clamp surface of the C6 chiret.
Since the body (L) functions as a cushion, it absorbs the deviation of the workpiece with respect to the chuck, and further improves the centering accuracy.

Furthermore, since the bullet body is installed protruding from the clamp surface, there is less wear on the clamp surface itself, and when the elastic body wears out (or the elastic body can be replaced), accuracy can be easily improved. If you can easily perform maintenance to maintain the function L1! is reduced to 1q. 1

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing a conventional Barry f-s-tsuk, Fig. 2 is a cross-sectional view showing a conventional [1-note 1 ~ boot ivy],
Fig. 3 is an explanatory cross-sectional view showing one embodiment of Kokumyo, Fig. 4 is a side view of Fig. 3, Fig. 5) is an explanatory cross-sectional view showing the clamped state of the work, and Fig. 6 is an explanatory cross-sectional view of the bullet f1. Cross-sectional explanatory diagram showing an enlarged body part (Yes. i18: 3 out of 1 no 1 Iki 20:
) No.22; Uneven part

Claims (1)

[Claims] Liquid addition - 1 part month: i'r; In the 1-V grip that holds the working area in the processing position, both ends of the clamp surface on which the liquid addition member is attached are A boo l characterized by having an elastic body protruding from the crane face J in the central part. Ivy.