CN202684166U

CN202684166U - Press-in type back pushing chuck

Info

Publication number: CN202684166U
Application number: CN 201220123324
Authority: CN
Inventors: 陈坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-21
Filing date: 2012-03-21
Publication date: 2013-01-23
Anticipated expiration: 2022-03-21

Abstract

The utility model belongs to chucks and particularly relates to a press-in type back pushing chuck. The press-in type back pushing chuck is characterized in that three jack catches placed in a structure of a 360 degrees circle are arranged inside an outer shell and can slide along a conical surface inside the outer shell, springs are arranged between the jack catches, a shell cover is pressed in and connected with the outer shell in an interference-fit mode, and a hexagonal handle is connected with a center hole of the shell cover in a screwed mode. A base plane of the jack catches contacts with an end face with thread of the hexagonal handle, when the hexagonal handle is screwed in, the hexagonal handle pushes the jack catches arranged inside the outer shell to achieve a firm grasp movement, and when the hexagonal handle is screwed out, the jack catches can achieve the loose movement under the action of the springs. An annular protrusion is arranged on an outer cylindrical surface of the shell cover, and an annular clamping buckle is arranged in the inner cylindrical surface of the outer shell. The protrusion on the outer cylindrical surface buckles in the clamping buckle in the inner cylindrical surface of the outer shell after installation. In the process of using the press-in type back pushing chuck, the outer shell can not slide or loose from the shell cover, and the press-in type back pushing chuck is convenient to use.

Description

A kind of forced pusher chuck

Technical field

The utility model belongs to the chuck class.

Background technology

Existing pusher chuck kind is a lot, be widely used in the tool industry, but all be with being threaded between existing pusher chuck shell and the end socket, unclamp easily in the use procedure, and after being threaded, axiality is relatively poor between the good drill bit of end socket centre bore and clamping, produces easily eccentricly, is unfavorable for boring and attacks.

Summary of the invention

The purpose of this utility model is for the deficiencies in the prior art, and a kind of forced pusher chuck is provided.

Technical solutions of the utility model are as follows:

The utility model is a kind of forced pusher chuck, comprise claw, shell, end socket, spring, hexagonal handle, it is characterized in that: claw is installed on enclosure, can slide along the enclosure conical surface, spring is housed between the claw, end socket is connected with shell by press mode, and hexagonal handle and end socket centre bore are to be threaded.

Claw of the present utility model has three, arranges with 120 ° of angles each other, connects with spring between any two.

Hexagonal handle of the present utility model can push away three claws forward by precession forward, by cooperating of the enclosure conical surface and claw, makes claw realize clamping action, and hexagonal handle screws out backward, and claw unclamps action in the effect realization of spring, and is easy to operate.

The beneficial effects of the utility model are:

Forced pusher chuck structure is simple, and the axiality that end socket is connected with shell is high, and the situation that shell and end socket in use get loose can not occur, and reliability is high.

Description of drawings

Fig. 1 is the utility model upward angle of visibility structural representation

Fig. 2 is the utility model downwards angle of visibility structural representation

Fig. 3 is the utility model cutaway view

Fig. 4 is the in the enclosure arrangement schematic diagram of section of claw

The specific embodiment

Such as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of forced pusher chuck, comprise claw 1, shell 2, hexagonal handle 3, end socket 4, spring 5, it is characterized in that: end socket 4 is pressed into shell 2 by pressure, three 1 one-tenth 360 ° of claws are uniform, claw 1 has spring 5 to connect between any two, and hexagonal handle 3 screws in the screwed hole in the middle of the end socket 4, and hexagonal handle 3 threaded side end faces contact with claw 1 bottom surface.

The utility model hexagonal handle 3 screws in forward end socket 4, and three claws 1 that can promote in the shell 2 are drawn close to the centre, realize promptly action, screws out backward, and three claws 1 are in mutual spring action and scatter, and realize opening action, and are simple to operate.

The utility model shell 2 is interference fit with end socket 4, and shell has the ring-type draw-in groove on the 2 inboard faces of cylinder, and the ring-type projection on end socket 4 faces of cylinder is stuck in the ring-type draw-in groove on the shell 2 inboard faces of cylinder.

Claims

1. forced pusher chuck, mainly by claw, shell, end socket, spring, hexagonal handle forms, it is characterized in that: claw (1) is installed on shell (2) inside, can slide along the inner conical surface of shell (2), spring (5) is housed between the claw (1), end socket (4) is connected with shell (2) by press mode, shell (2) is interference fit with end socket (4), end socket (4) has the ring-type projection on the face of cylinder, shell (2) has the ring-type draw-in groove on the inboard face of cylinder, ring-type projection on end socket during installation (4) face of cylinder is stuck in the ring-type draw-in groove on the inboard face of cylinder of shell (2), hexagonal handle (3) and end socket (4) centre bore are to be threaded, and the threaded side end face of hexagonal handle (3) contacts with claw (1) bottom surface.