JPH04102709U - Improved end cover for collect chuck - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent chips generated from the material during drill operation from entering the collet chuck through the end cover. [Structure] In an end cover 1 that fits into a collet chuck 3 that supports a drill 2, an O-ring 11 for tightening with the shaft of the drill is installed in a hole in the center through which the drill 2 is inserted. [Selection] Figure 1

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention features an air protector that protects the drill-side end of the collet chuck that holds the drill. This is related to the end cover.

0002

[Conventional technology]

Conventionally, end covers are used to hold drills in various diameters and are used for inserting drills. The holes are adjustable. The hole has a considerably large diameter in order to allow drills of various diameters to be inserted through it. When inserting a drill, there is usually a gap between the insertion hole and the drill. existed. However, in the relationship between the drill and the end cover as described above, Prevents chips generated from passing through the gap and entering the collet chuck. It was impossible to do so. For this reason, the drill may be stopped due to chips entering the collet chuck while the drill is operating. The operating tool may be damaged, or the drill may malfunction, resulting in scratches on the product. There were car accidents such as car accidents.

0003

[Problem that the idea aims to solve]

The present invention improves the conventional end cover and overcomes the above-mentioned drawbacks of the conventional technology. The challenge is to comply with the law.

0004

[Means to solve the problem]

In order to solve these problems, the configuration of the present invention is a collet chip that supports the drill. Insert the drill into the hole in the center of the end cover that fits into the jack. An improved type of collet chuck with an O-ring around it for tightening with the shaft of the collet. Consists of an end cover. That is, in the present invention, end covers are prepared depending on the diameter of the drill, and As shown in the cross-sectional view in 1, attach the base of the collet chuck of the drill to the O-ring. That's how I understand it. The materials for the O-ring used in this invention include synthetic rubber, natural rubber, and general rubber. Various materials can be used, such as synthetic resins.

[0005]

[Effect]

A gap is created between the drill and the end cover by means based on the above-mentioned configuration. Unlike conventional technology, chips generated during drill operation can pass through the end cover. Therefore, it is impossible for it to invade the collet chuck.

[0006]

【Example】

By the way, when the drill is in operation, chips are generated in a continuous spiral, and this is the may become entangled with the chuck. Prevent entanglement of chips on spirals like this Therefore, in the longitudinal section of the end cover of this invention, the drill side surface is from the center to the outside. There is an embodiment in which the collet chuck is tilted backward along the . This allows the spiral chips to move outside the end cover along the slope of the end cover. It is moved to the side and no longer gets entangled with the collet chuck from the outside. this As for the inclined shape of the longitudinal section of the end cover, As shown in Figure 2, the vicinity of the center of the end cover is approximately linear, and the vicinity of the outer end A shape where is on an arc, As shown in Figure 3, a real sister example in which the overall shape is an elliptical arc can be considered, but in this case, This proposed shape is not limited to these embodiments.

[0007]

[Effect of the idea]

The structure of the present invention, which includes such an O-ring, makes it possible to operate the drill. The end cover prevents chips generated inside the collet chuck from entering the chuck. As a result, unlike the conventional technology, chips enter the collet chuck → drill operation Accidents such as damage to tools and damage to products can be prevented. Furthermore, in the embodiments shown in FIGS. 2 and 3, in which the surface of the longitudinal section of the end cover is inclined. This also prevents the swirling chips from getting entangled with the collet chuck. In this way, the invention of the present application is superior to the prior art by improving the end cover. The present invention has great value because it can overcome the drawbacks as described below.

[0008]

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing the vertical shape of a collet chuck and drill with the end cover of the present invention attached (the end cover represents a cross section, and the collet chuck and drill represent a side surface). ).

FIG. 2 is a cross-sectional view showing a longitudinal cross-sectional shape of an embodiment of the end cover of the present invention;

FIG. 3 shows a longitudinal cross-sectional shape of an embodiment of the end cover of the present invention.

[0009]

[Explanation of symbols]

1: End cover 2: Drill 3: Collet chuck 11: O-ring

Claims (4)

[Scope of utility model registration request] [Claim 1] Improvement of the collet chuck by providing an O-ring around the central hole through which the drill is inserted in an end cover that fits into the collet chuck that supports the drill to tighten the shaft of the drill. mold end cover 2. The improved end cover for a collet chuck according to claim 1, wherein the surface of the end cover on the drill side is inclined outward from the center in the longitudinal cross section of the end cover toward the collet chuck side. 3. The improved end cover for a collet chuck according to claim 2, wherein the inclined cross-sectional shape is on a circular arc, and the vicinity of the center is on a substantially straight line. 4. The improved end cover for a collet chuck according to claim 2, wherein the inclined cross-sectional shape is on an elliptical arc.