CN201316816Y

CN201316816Y - Servo elastic drill chuck

Info

Publication number: CN201316816Y
Application number: CNU2008202169828U
Authority: CN
Inventors: 蒋宏宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-11
Filing date: 2008-12-11
Publication date: 2009-09-30
Anticipated expiration: 2018-12-11

Abstract

The utility model relates to a servo elastic drill chuck, comprising a tool holder (1), a spring chuck body (2) and a supporting sleeve (3). The supporting sleeve (3) is sheathed on the tool holder (2). One end of the spring chuck body (2) is inserted into the spring chuck body (2) and leans against a supporting screw (11) penetrated through the handle part of the tool holder (1). The other end of the spring chuck body (2) is placed in the supporting sleeve (3), on which a spring chuck nut (4) is screwed. The tool holder of a tool (5) is inserted and positioned in the spring chuck body (2). The utility model is characterized in that a noncircular pin hole (7) is machined on the end of the spring chuck body (2) in which the tool holder (1) is inserted and the noncircular pin hole (7) is used to install the pin (6) through a penetration form, the two ends of the pin (6) are supported on the tool holder (1) and an elastic seal ring (8) is installed on a position of contact between the spring chuck body (2) and the internal wall of the tool holder (1). The utility model solves the problem of unreliable drilling and cutting when the power head axis is not in line with the axis of the chuck guide sleeve.

Description

Trailing type elasticity drill chuck

Technical field

The utility model relates to a kind of machining anchor clamps, especially a kind of boring elasticity drill chuck, specifically a kind of trailing type elasticity drill chuck.

Background technology

The elasticity drill chuck is a kind of cutter chuck commonly used, and it is reliable that it has clamping, changes convenient, good to neutrality advantage, therefore is widely used on all kinds of rigs.But when some the small-sized antarafacial parts that can't locate of processing; often need to use pattern to carry out the location of part; at this moment; endoporus on the part is added man-hour, usually can be badly in need of a kind of can the correction among a small circle automatically owing to the pattern hole heart and center cutter line are difficult to aim at the machining accuracy that influences interior worker; available with the drill chuck of guaranteeing the hole machining accuracy; guarantee crudy to improve working (machining) efficiency on the other hand on the one hand, reduce the clamping tool setting time.

Summary of the invention

The purpose of this utility model is neutrality is difficult to guarantee and influences the problem of crudy and efficient at the hole type parts cutter that utilizes pattern location, designs a kind of trailing type elasticity drill chuck.

The technical solution of the utility model is:

A kind of trailing type elasticity drill chuck, comprise handle of a knife 1, collet body 2 and support set 3, support set 3 is sleeved on the handle of a knife 1, one end of collet body 2 inserts in the handle of a knife 1 and with the supporting screw 11 that is installed on handle of a knife 1 shank and offsets, the other end is arranged in support set 3 and is installed with collet nut 4, the handle of a knife plug-in mounting of cutter 5 is positioned in the collet body 2, feature is that described collet body 2 inserts on the end of handle of a knifes 1 and is processed with the special-shaped pin axis hole 7 that is used to install bearing pin 6, the two supports of bearing pin 6 is equipped with elastic seal ring 8 on collet 2 and the contacted position of handle of a knife 1 inwall on handle of a knife 1.

Special-shaped pin axis hole 7 can be slot, and its length is greater than the diameter of bearing pin 6, and the diameter of its width and bearing pin 6 is suitable.

Described special-shaped pin axis hole 7 also can be elliptical aperture or long waist shaped hole.

The beneficial effects of the utility model:

The utility model is suspended on the bearing pin by the upper end that makes the collet body rotationally, make the collet physical efficiency make a certain amount of beat, thereby after making cutter insert in the pattern hole certain automatic centering amount can be arranged, rely on the effect of elastic seal ring to make center cutter line and pattern central lines simultaneously, thus the machining accuracy that guarantees.

The utility model type has solved the problem of the reliable drilling processing when the unit head axis leads the different axle center of sleeve yarn with anchor clamps, can guarantee machining accuracy.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A broken section structural representation of Fig. 1.

Among the figure: the 1st, handle of a knife, the 2nd, collet body, the 3rd, support set, the 4th, collet nut, the 5th, cutter, the 6th, bearing pin, the 7th, pin shaft hole, the 8th, elastic seal ring, the 9th, O-ring seals, the 10th, steel wire card, the 11st, supporting screw.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

As shown in Figure 1, 2.

A kind of trailing type elasticity drill chuck, comprise handle of a knife 1, collet body 2 and support set 3, support set 3 is sleeved on the handle of a knife 1, O-ring seals 9 is installed between the two, one end of collet body 2 inserts in the handle of a knife 1 and with the supporting screw 11 that is installed on handle of a knife 1 shank and offsets, the other end is arranged in support set 3 and is installed with collet nut 4, and the handle of a knife plug-in mounting of cutter 5 is positioned in the collet body 2, and cutter 5 (as chit drill) also is equipped with O-ring seals with support set 3 contacted positions.Be processed with the special-shaped pin axis hole 7 that is used to install bearing pin 6 on one end of described collet body 2 insertion handle of a knifes 1, the two supports of bearing pin 6 is on handle of a knife 1 and steel wire card 10 is installed, on collet 2 and the contacted position of handle of a knife 1 inwall, elastic seal ring 8 is installed, as shown in Figure 1.During concrete enforcement, special-shaped pin axis hole 7 can adopt slot shown in Figure 2, and its length is greater than the diameter of bearing pin 6, and the diameter of its width and bearing pin 6 is suitable.Certainly, special-shaped pin axis hole 7 also can be elliptical aperture or long waist shaped hole.

The utility model does not relate to part to be realized as the structure of collet body 2 and the prior aries that maybe can adopt all same as the prior art such as structure of collet nut 4.

Claims

1, a kind of trailing type elasticity drill chuck, comprise handle of a knife (1), collet body (2) and support set (3), support set (3) is sleeved on the handle of a knife (1), one end of collet body (2) inserts in the handle of a knife (1) and with the supporting screw (11) that is installed on handle of a knife (1) shank and offsets, the other end is arranged in support set (3) and is installed with collet nut (4), feature is that described collet body (2) inserts on the end of handle of a knife (1) and is processed with the special-shaped pin axis hole (7) that is used to install bearing pin (6), the two supports of bearing pin (6) is equipped with elastic seal ring (8) on collet (2) and the contacted position of handle of a knife (1) inwall on handle of a knife (1).

2, trailing type elasticity drill chuck according to claim 1 is characterized in that described special-shaped pin axis hole (7) is a slot, and its length is greater than the diameter of bearing pin (6), and the diameter of its width and bearing pin (6) is suitable.

3, trailing type elasticity drill chuck according to claim 1 is characterized in that described special-shaped pin axis hole (7) is elliptical aperture or long waist shaped hole.