CN200981142Y

CN200981142Y - Modified structure of fastening device for outer axle gear cutting processing

Info

Publication number: CN200981142Y
Application number: CN 200620141031
Authority: CN
Inventors: 苏由唱; 刘芳
Original assignee: 许晓华
Priority date: 2006-12-14
Filing date: 2006-12-14
Publication date: 2007-11-28
Anticipated expiration: 2016-12-14

Abstract

The utility model discloses an improved structure of a holding device for the output shaft gear cutting process, which comprises a mandrel, and a holding pillar equipped on the mandrel, characterized in that the holding pillar on the holding face is further provided with a plurality of projections with circular alignment. The projections can be shaped as fine cuspidal point or continuous or discontinuous dental pattern. Due to the adoption of the technical project and the equipment of a plurality of projections on the holding face of the holding pillar, the utility model uses point contact to increase the friction force, thereby improving the holding effects, and avoiding the abandonment of the output shaft gear due to the slip. The fact proves that thousands of products produced with the method are not abandoned due to the slip, thereby having obvious holding and enhancing effects compared with the prior method without increasing the projections.

Description

A kind of shaft gear cutting is processed with tightening device structure-improved

Technical field

The utility model relates in the motor shaft gear cutting processing with tightening device structure-improved.

Background technology

When going out shaft gear and carrying out machining, wherein an end is by as shown in Figure 1 a kind of tightening device tightening, 1 is mandrel among the figure, 2 for the tightening post, the shaft geared sleeve on mandrel, and and another stiff end interact and tightening, an end face that goes out shaft gear is promptly compressed by the tightening face of tightening post, owing to go out shaft gear is the tightening that directly realizes out shaft gear for the mode of face contact, and this mode is used shaft gear easily and skidding occurred in process, thereby causes scrapping of shaft gear.

The utility model content

The purpose of this utility model is exactly that tightening device at above-mentioned shaft gear cutting processing usefulness improves, and makes the tightening device when tightening goes out shaft gear, and better tightening effect can be arranged, and avoids in the process because skidding of workpiece causes scrapping of shaft gear.

To achieve these goals, the technical solution adopted in the utility model is: a kind of shaft gear cutting is processed with tightening device structure-improved, comprise mandrel and be located at tightening post on the mandrel, it is characterized in that: the several projections that also is provided with the row portion of going in ring on the tightening face of described tightening post.

Preferably, described projection can be tiny cusp shape projection.

Preferably, described projection also can be continuous or discontinuous flute profile shape projection.

The utility model is owing to adopt technique scheme, after the tightening face of tightening post is provided with several projections, utilize the some way of contact to increase frictional force, thereby increase the tightening effect, avoid in the process causing scrapping of shaft gear owing to skidding, facts have proved that the method does not almost cause because of skidding scrapping through the thousands of product of processing, have tangible tightening to strengthen effect when not increasing projection in the past.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the structural representation of existing tightening device;

Fig. 2 is the structure improved structural representation of the utility model;

Fig. 3 is the perspective view of tightening post among Fig. 2;

Fig. 4 is the vertical view of tightening post among Fig. 2;

Fig. 5 is the vertical view of another embodiment of tightening post.

The specific embodiment

Extremely shown in Figure 4 as Fig. 2, for a kind of shaft gear cutting of the utility model is processed with the structure improved preferred embodiment of tightening device, it comprises mandrel 1 and is located at tightening post 2 on the mandrel 1, also be provided with the several projections of the row portion of going in ring on the tightening face 21 of described tightening post 2, this projection is continuous flute profile shape projection 22.Flute profile shape projection 22 also can discontinuously be provided with.

As shown in Figure 5, described projection also can be tiny cusp shape projection 23.

Claims

1, a kind of shaft gear cutting processing is with tightening device structure-improved, comprises mandrel (1) and is located at tightening post (2) on the mandrel (1), it is characterized in that: the several projections that also is provided with the row portion of going in ring on the tightening face (21) of described tightening post (2).

2, described a kind of shaft gear cutting is processed with tightening device structure-improved according to claim 1, and it is characterized in that: described projection is continuous flute profile shape projection.

3, described a kind of shaft gear cutting is processed with tightening device structure-improved according to claim 1, and it is characterized in that: described projection can be tiny cusp shape projection.