CN202239712U

CN202239712U - Hollow power chuck

Info

Publication number: CN202239712U
Application number: CN2011203460653U
Authority: CN
Inventors: 孙贤青
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-16
Filing date: 2011-09-16
Publication date: 2012-05-30
Anticipated expiration: 2021-09-16

Abstract

The utility model discloses a hollow power chuck, which comprises an end cover, a piston, ashell and a power wedge with jaws, wherein the piston is arranged in the shell; the power wedge is in sliding fit with the end cover; the shell is fixedly connected with the end cover; the piston is provided with a tapered wedge; the power wedge is provided with a chute in sliding fit with the tapered wedge; the piston is provided with a guide rod extending out of the shell; and the guide rod is in sliding fit with the shell. The hollow power chuck is characterized in that: the piston is provided with a through hole, and the end cover is provided with a second through hole; and the through hole is communicated with the second through hole. The hollow power chuck has the characteristic of suitability for processing long rod materials.

Description

The hollow power chuck

Technical field

The utility model relates to a kind of lathe and uses clamping and positioning device, relates in particular to the hollow power chuck that a kind of lathe is used.

Background technology

The available dynamic chuck can not use when it adds section chief's bar, does not have enough distances, exists serious use defective, and the scope of application is little.

Summary of the invention

The purpose of the utility model is to provide a kind of ability to be suitable for the hollow power chuck of long bar processing.

In order to achieve the above object, the technical scheme of the utility model is: a kind of hollow power chuck comprises end cap, piston, housing and has the power voussoir of claw; Piston is contained in the housing, and said power voussoir and end cap are slidingly matched, and housing is fixedly connected with end cap; Have wedge on the piston, have the chute that is slidingly matched with wedge on the power voussoir, also have guide rod on the said piston; Guide rod stretches out outside the housing; And guide rod and housing are slidingly matched, and its innovative point is: have through hole on the said piston, also have second through hole on the end cap; Through hole communicates with second through hole.

Have guide chute on the said power voussoir, slide block and guide chute are slidingly matched, and claw is fixedly connected with slide block through bolt.

Also have the connection screw on the said guide rod.

After adopting said structure,, also has second through hole on the end cap owing to have through hole on the said piston; Through hole communicates with second through hole.Chuck hub is a through hole like this, can realize the processing and the automation feeding of long bar.Have the wide characteristics of the range of work.

Description of drawings

Fig. 1 is the structural representation of the utility model releasing orientation;

Fig. 2 is the structural representation of the utility model clamped condition;

Fig. 3 is the structural representation of the utility model housing;

Fig. 4 is the cutaway view of the A-A direction of Fig. 3;

Fig. 5 is the utility model structure of piston sketch map;

Fig. 6 is the cutaway view of the B-B direction of Fig. 5;

Fig. 7 is the structural representation of the utility model end cap;

Fig. 8 is the cutaway view of the C-C direction of Fig. 7;

Fig. 9 is the structural representation of the utility model power voussoir.

The specific embodiment

The embodiment that provides below in conjunction with accompanying drawing does further detailed explanation to the utility model.

Shown in Fig. 1 ~ 9, a kind of hollow power chuck of the utility model comprises end cap 1, piston 2, housing 3 and has the power voussoir 4 of claw 5; Piston 2 is contained in the housing 3, and said power voussoir 4 is slidingly matched with end cap 1, and housing 3 is fixedly connected with end cap 1; Have wedge 2-1 on the piston 2, have the chute 4-1 that is slidingly matched with wedge 2-1 on the power voussoir 4, also have guide rod 2-2 on the said piston 1; Guide rod 2-2 stretches out outside the housing 3; And guide rod 2-2 and housing 3 are slidingly matched, and it is characterized in that: have through hole 2-3 on the said piston 2, also have the second through hole 1-1 on the end cap 1; Through hole 2-3 communicates with the second through hole 1-1.

As shown in Figure 9, have guide chute 7 on the said power voussoir 4, slide block 6 is slidingly matched with guide chute 7, and claw 5 is fixedly connected with slide block 6 through bolt 8.Connect firmly, it is smooth and easy to slide.

Like Fig. 1,2,5, shown in 6, also have connection screw 2-2-1 on the said guide rod 2-2.Conveniently want to be connected with power source.

The chuck hub of the utility model is a through hole, can realize the processing and the automation feeding of long bar, and power source is rear-mounted actuating cylinder or oil cylinder, through rearmounted power post-tensioning and preceding push piston, realizes that anterior claw clamps and action of releasing.

Claims

1. hollow power chuck; Comprise end cap (1), piston (2), housing (3) and have the power voussoir (4) of claw (5), piston (2) is contained in the housing (3), and said power voussoir (4) is slidingly matched with end cap (1); Housing (3) is fixedly connected with end cap (1); Have wedge (2-1) on the piston (2), have the chute (4-1) that is slidingly matched with wedge (2-1) on the power voussoir (4), also have guide rod (2-2) on the said piston (1); Guide rod (2-2) stretches out outside the housing (3); And guide rod (2-2) is slidingly matched with housing (3), it is characterized in that: have through hole (2-3) on the said piston (2), also have second through hole (1-1) on the end cap (1); Through hole (2-3) communicates with second through hole (1-1).

2. hollow power chuck according to claim 1; It is characterized in that: have guide chute (7) on the said power voussoir (4); Slide block (6) is slidingly matched with guide chute (7), and claw (5) is fixedly connected with slide block (6) through bolt (8).

3. hollow power chuck according to claim 1 is characterized in that: also have connection screw (2-2-1) on the said guide rod (2-2).