CN201807803U

CN201807803U - Positioning round die drift holder

Info

Publication number: CN201807803U
Application number: CN2010205216635U
Authority: CN
Inventors: 陈建新
Original assignee: Changzhou Vocational Institute of Textile and Garment
Current assignee: Changzhou Vocational Institute of Textile and Garment
Priority date: 2010-09-08
Filing date: 2010-09-08
Publication date: 2011-04-27
Anticipated expiration: 2020-09-08

Abstract

The utility model relates to a positioning circular die twister, which comprises a circular die and a circular die box. The inner wall of the circular hole of the circular die box is provided with at least two grooves evenly distributed along its circumference. The circular die box The inner wall of the circular hole is connected with a thread positioning sleeve with a through hole whose shape matches the shape of the circular hole, and the outer wall of the thread positioning sleeve is provided with at least two protrusions respectively corresponding to the grooves. The protrusions are engaged with the corresponding grooves respectively. The utility model provides a positioning circular die wrench which can ensure that the center of the thread does not skew during threading, and the positioning is quick and easy during threading.

Description

A kind of setting circle screw die strand hand

Technical field

The utility model relates to a kind of setting circle screw die strand hand, belongs to screwing tool.

Background technology

Thread connection is widely used in all kinds of machineries, on the equipment, external screw thread processing in the thread connection mainly contains mantle fiber and some other processing technology at present, wherein mantle fiber is the externally threaded main method of processing medium-small diameter, can use machine mantle fiber and manual mantle fiber method again in concrete the application, manual mantle fiber is mainly used in single-piece, the production of small lot, it is simple to have instrument, advantages such as applying flexible, to use circular die strand hand during the craft mantle fiber, common circular die strand hand does not have positioning function, locate because be difficult for when having begun tooth during mantle fiber, so not only effort also tends to produce defectives such as external screw thread is crooked, cause nut to connect or connect the back reluctantly to produce bigger internal stress and cause consequences such as screw thread fracture.

The utility model content

The purpose of this utility model is to overcome the defective that prior art exists, and guarantees that thread center does not produce crooked setting circle screw die strand hand when a kind of mantle fiber is provided, and the location is rapidly, easily during its mantle fiber.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of setting circle screw die strand hand, comprise circular die and circular die box, have at least two on the circular-hole internal-wall of described circular die box along the equally distributed groove of its circumference, be connected with the mantle fiber positioning sleeve that has through hole that profile and described circular hole shape are complementary on the circular-hole internal-wall of described circular die box, the outer wall of described mantle fiber positioning sleeve is provided with at least two projectioies corresponding respectively with described groove, described projection respectively with corresponding groove clamping.

Further, described groove is inverted "L" shaped; Described groove is provided with two; In order to reduce groove and protruding fit clearance, make the location firm, the downside of the transverse concave groove of described inverted "L" shaped groove is that axis is inclined upwardly and horizontal by 10 °～15 ° angles, the projection of described mantle fiber positioning sleeve is provided with and the corresponding inclined-plane of the downside of described transverse concave groove with its connecting line with vertical groove right flank.

Further, the downside of the transverse concave groove of described inverted "L" shaped groove is that axis is inclined upwardly and horizontal by 10 ° of angles with its connecting line with vertical groove right flank.

The beneficial effects of the utility model: the utility model has solved the defective that exists in the background technology, common circular die strand hand is cooperated with the mantle fiber positioning sleeve with positioning action, it is askew partially to have guaranteed that thread center does not produce, and the location rapidly, has easily not only guaranteed diehead threading quality but also improved efficient, has reduced working strength during mantle fiber.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the sectional structure schematic diagram of the preferred embodiment of setting circle screw die strand hand;

Fig. 2 is the sectional structure schematic diagram of circular die box;

Fig. 3 is the sectional structure schematic diagram of mantle fiber positioning sleeve;

Fig. 4 is the A-A cutaway view Amplified image of the projection of mantle fiber positioning sleeve among Fig. 3.

Wherein: 1, circular die box; 2, mantle fiber positioning sleeve; 3, circular die.

The specific embodiment

A kind of setting circle screw die strand hand as shown in Figure 1-Figure 3, comprise circular die 3 and circular die box 1, have two on the circular-hole internal-wall of described circular die box 1 along the equally distributed inverted "L" shaped groove of its circumference, be connected with the mantle fiber positioning sleeve 2 that has through hole that profile and described circular hole shape are complementary on the circular-hole internal-wall of described circular die box 1, the outer wall of described mantle fiber positioning sleeve 2 is provided with two projectioies corresponding respectively with described two " L " connected in stars, described projection respectively with the clamping of corresponding " L " connected in star.

As shown in Figure 2, the downside of the transverse concave groove of described inverted "L" shaped groove is that axis is inclined upwardly and horizontal by 10 °～15 ° angles with its connecting line with vertical groove right flank, and it is that axis is inclined upwardly and horizontal by 10 ° of angles with its connecting line with vertical groove right flank that this case preferred implementation adopts the downside of the transverse concave groove of " L " connected in star.As shown in Figure 4, the projection of described mantle fiber positioning sleeve 2 is provided with and the corresponding inclined-plane of the downside of described transverse concave groove.

Assembly method: in the vertical groove of elder generation with " L " connected in star of the projection embedding circular die box 1 of mantle fiber positioning sleeve 2, upwards shift the end then onto, towards the direction rotation mantle fiber positioning sleeve 2 of the transverse concave groove of " L " connected in star, projection just has been embedded in the transverse concave groove like this, has finished assembling at last.

During mantle fiber the through hole on the mantle fiber positioning sleeve 2 is packed on the polished rod for the treatment of mantle fiber, twist circular die strand hand just can be finished mantle fiber very like a cork, when the longer external screw thread of cover system, can once extract, can after playing tooth, mantle fiber positioning sleeve 2 be taken off when cover is made short external screw thread, directly go out remaining screw thread then with circular die strand gloves.According to the reach of reality cover system, can make mantle fiber positioning sleeve 2 specifications of different length; Simultaneously, according to different external screw thread specifications, can make circular die 3 corresponding and mantle fiber positioning sleeve 2 with it.

Claims

1. A positioning circular die twisting hand, comprising a circular die (3) and a circular die box (1), is characterized in that: the inner wall of the circular hole of the circular die box (1) has at least two holes along its circumference. Evenly distributed grooves, the inner wall of the circular hole of the circular die box (1) is connected with a threaded positioning sleeve (2) with a through hole whose shape matches the shape of the circular hole, and the threaded positioning sleeve (2) The outer wall is provided with at least two protrusions respectively corresponding to the grooves, and the protrusions are engaged with the corresponding grooves respectively.

2. A positioning circular die wringer according to claim 1, characterized in that: said groove is in an inverted "L" shape.

3. A positioning circular die twister according to claim 2, characterized in that there are two grooves.

4. A positioning circular die wrench according to claim 2 or 3, characterized in that: the lower side of the transverse groove of the inverted "L" shaped groove is connected to the right side of the vertical groove The connecting line is inclined upwards on the axis and forms an included angle of 10°-15° with the horizontal plane, and the projection of the thread positioning sleeve (2) is provided with an inclined surface corresponding to the lower side of the transverse groove.

5. A positioning circular die wrench according to claim 4, characterized in that: the lower side of the transverse groove of the inverted "L" shaped groove and the connection line between it and the right side of the vertical groove The axis is inclined upward and forms an angle of 10° with the horizontal plane.