CN202803984U

CN202803984U - Novel pipe end forming grip die structure

Info

Publication number: CN202803984U
Application number: CN 201220500736
Authority: CN
Inventors: 陈�峰
Original assignee: SHANGHAI LIANNAN AUTOMOBILE ACCESSORIES CO Ltd
Current assignee: SHANGHAI LIANNAN AUTOMOBILE ACCESSORIES CO Ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2013-03-20
Anticipated expiration: 2022-09-28

Abstract

The utility model provides a novel pipe end forming grip die structure. According to the novel pipe end forming grip die structure, rectangular shapes of inserts of grip dies are changed into trapezoid shapes, and therefore the structure which is easy to shift horizontally and unstable in working originally is changed into the structure which is stable in working and does not shift horizontally in the process of pipe end forming, product quality can be guaranteed, and forming stability of products can be guaranteed.

Description

A kind of pipe end moulding clamping die structure

Technical field

The utility model relates to a kind of pipe end moulding clamping die structure, belongs to the machining mould applications.

Background technology

Every profession and trade need to form the various shapes such as flange, enlarging, reducing to the pipe pipe end by the cold extrusion mode at present, in order to interconnect assembling between pipe and other equipment appurtenances.

There are many defectives in existing pipe end clamping die structure.As shown in Figure 1, original mould structure adopts that two block lengths are square up and down inserts, add only to position by middle guide pillar man-hour, about two side infinite places, insert can occur when moving forward and backward about skew, cause that to produce product unstable.On the other hand, insert can accelerate after being offset and clamping die between wearing and tearing, further cause the product orientation precision accurate not, product percent of pass descends.

This novel practical invention has improved the structure of pipe end moulding clamping die, and mould can be located accurately, left and right sides shift phenomenon can not occur during work, has improved quality and stability that product adds man-hour.

Summary of the invention

The phenomenon of unstable product quality when solving the pipe end processing and forming, the utility model provides a kind of pipe end moulding clamping die structure, has greatly improved the stability of product quality.

Improvement of the present utility model is, on the basis of original pipe end moulding clamping die structure, with in the original structure up and down square the inserting of 2 block lengths between die body 4 replace with up and down 2 and trapezoidally insert 5, and clamping die structure 1 transformed, so that trapezoidal after improving inserted and 5 can be fitted fully with clamping die structure 1 each contact-making surface and do not stay the slit.Trapezoidal 5 modes by its appearance and size location of inserting make it from accurately locating in clamping die structure 1, when the 5 applying clamping die structures 1 of inserting move forward and backward, with the situation of skew about can not occurring again.

The beneficial effects of the utility model are: by square the inserting of 2 block lengths 4 replaced with corresponding 2 trapezoidal inserting after 5, mode by 5 the appearance and size location of inserting makes it self accurate location, steel pipe add insert man-hour 5 can not occur again about the situation of skew, reached the purpose of pipe end Forming Quality.

Description of drawings

Accompanying drawing 1: former pipe end moulding clamping die structure chart;

Accompanying drawing 2: pipe end moulding clamping die structure chart;

Accompanying drawing 3: pipe end moulding clamping die structure adds the side sectional view in man-hour.

The specific embodiment

As shown in Figure 3, trapezoidal insert 5 and

upper die body

2 and 3 of lower mold body reserved a little space, add man-hour when carrying out steel pipe, first pipe is put into clamping die structure 1, upper die body 2 and lower mold body 3 are fixedly clamped a side pipe body of processing stand, and 2 trapezoidal 5 opposite side bodys with processing stand of inserting add and fasten up and down, then open pipe end forming machine, front end 5 promotes trapezoidal inserting, and trapezoidal inserting 5 finished whole operation after moving to upper die body 2 and lower mold body 3, and pipe end is cold extrusion shaped.

Claims

1. pipe end moulding clamping die structure, comprise upper die body (2), lower mold body (3) and be positioned at up and down and play inserting of stationary positioned effect between die body, it is characterized in that: on the basis of original pipe end moulding clamping die structure, 2 trapezoidal inserting (5) about square the inserting of 2 block lengths (4) between die body replaces with up and down with original structure, and clamping die structure (1) transformed, so that trapezoidal the inserting (5) after improving can be fitted fully with each contact-making surface of clamping die structure (1) and do not stayed the slit.