CN2314871Y

CN2314871Y - Rolling die device for drawing metal shape

Info

Publication number: CN2314871Y
Application number: CN 97248934
Authority: CN
Inventors: 杨芳林; 刘建章; 张建军; 薛祥义
Original assignee: Northwest Institute for Non Ferrous Metal Research
Current assignee: Northwest Institute for Non Ferrous Metal Research
Priority date: 1997-12-03
Filing date: 1997-12-03
Publication date: 1999-04-21
Anticipated expiration: 2007-12-03

Abstract

The utility model relates to a rolling die device for a drawing metal shape, which is used for the drawing and shaping of a metal tube, a rod and a wire shape. The utility model comprises a framework, a working roll, a roll frame, and a bearing shell. The utility model is characterized in that the framework is composed of an outer die sleeve and an inner framework which is arranged in the outer die sleeve; the outer die sleeve is provided with an outer die sleeve cover which is fixed on the outer die sleeve by bolts; a dimensional tolerances trimming zone is arranged between the bottom surface of the roll frame and the inner framework, and a trimming pad which has the same size with the bottom surface of the roll frame is padded in the trimming zone. The utility model has the characteristics of low cost, convenient installation and replacement, easy dimensional tolerances controlling and adjusting, and relatively stable dimensional tolerances.

Description

A kind of shape that stretches roll die device

The utility model relates to a kind of die device that rolls of the shape that stretches, and is used for metal tube, rod, wire stretching shaping.

The production of shape goods can be adopted extruding, stretch, methods such as the curling shaping of special-shaped raceway, in the drawing process, there is the fixed die of employing to stretch or Roller die stretching, Roller die stretching is used rolls die device, be by different protruding rollers, recessed roller, plain-barreled roll is formed various difform passes, it is to adopt the bolt holddown spring to control that the dimensional tolerance of shape is regulated, generally can satisfy needs for the not high shape goods of dimension precision requirement, and for the higher shape goods of dimension precision requirement with regard to inaccessible requirement, in addition, regulate dimensional tolerance owing to adopt bolt holddown spring structure, make and roll mold framework and can only be an integral body, thereby it is big to roll mold framework weight, has increased the manufacturing cost of rolling die device, and also giving to manipulate simultaneously makes troubles.

The purpose of this utility model is the deficiency at above-mentioned existence, has proposed a kind ofly to reduce the manufacturing cost of rolling die device to reduce the framework materials, and die change is convenient, and the die device that rolls of the high stretching shape of precision is adjusted in the control of product size tolerance.

A kind of shape that stretches roll die device, comprising:

Framework, this framework place the mould bases position of stretching-machine, place the parts after working roll and roller frame make up in this framework;

Working roll, this working roll are protruding roller or recessed roller or plain-barreled roll or its combination, and the two end axles of working roll is bearing on the roller frame by means of bearing shell, form difform pass by the work roll surface;

The roller frame, this roller frame is bearing in the framework;

Bearing shell, the two end axles of this bearing shell supporting working roll, this bearing shell watt is made of brasses in the semicircle of the inserting the roller frame watt box and the arc holder that is buckled on the working roll;

It is characterized in that:

The a framework is by the outer die casing of the mould bases position that places stretching-machine and place the inner frame in the outer die casing to form;

B is provided with on outer die casing by bolt and installs thereon external mold upper shield;

C is provided with dimensional tolerance fine setting district between roller frame bottom surface and inner frame, be lined with the fine setting pad identical with roller frame bed-plate dimension in the fine setting district.

Because the framework that the utility model adopts is combined by outer die casing and inner frame, the materials of outer die casing have been reduced, reduced manufacturing cost, make the mould installation change convenient, be easy to control and adjust with the dimensional tolerance of the metallic article of the utility model production, the dimensional tolerance of metallic article is more stable.

Fig. 1 is a schematic diagram of the present utility model.

Fig. 2 is the C-C view of Fig. 1.

Fig. 3 is the positive hexagon pass of a utility model working roll layout drawing.

Fig. 4 is the utility model plum blossom pass working roll layout drawing.

Fig. 5 is roller frame figure.

Fig. 6 is the D-D view of Fig. 5.

Fig. 7 is the bearing shell structure chart.

Embodiment in conjunction with the accompanying drawings further describes as follows to the utility model:

A kind of shape that stretches roll die device, comprising:

Working roll 1, this working roll are protruding roller or recessed roller or plain-barreled roll or its combination, and the two end axles of working roll is bearing on the roller frame by means of bearing shell, form difform pass by the work roll surface;

Roller frame 2, this roller frame is bearing in the framework;

Bearing shell, the two end axles of this bearing shell supporting working roll, this bearing shell is made of brasses in the semicircle that the places the roller frame watt box 3 and the arc holder watts 4 that is buckled on the work roll shaft;

It is characterized in that: a framework is by the outer die casing 5 of the mould bases position that places stretching-machine and place the inner frame 6 in the outer die casing to be formed; B is provided with on outer die casing by bolt 7 and installs thereon external mold upper shield 8; Between roller frame bottom surface and inner frame, be provided with dimensional tolerance fine setting district 9, in the fine setting district, be lined with the fine setting pad identical with roller frame bed-plate dimension.

A kind of assembling of rolling die device of the shape that stretches, brasses is placed in the semicircle watt box of roller frame, select the working roll of protruding roller, recessed roller, plain-barreled roll or its combination then for use according to the cross sectional shape of stretching shape goods, the axle head of the working roll chosen is bearing on the brasses, on the axle of working roll, buckle well arc holder watt again, and be fixed by bolts on the roller frame.Apply oil on the axle of giving working roll and the bearing shell contact-making surface can rotate working roll flexibly.Outer die casing is inserted the mould bases fixed-site of stretching-machine, then inner frame is inserted in the outer die casing, the parts of working roll that assembles and roller frame are put into inner frame, cover the external mold upper shield, and use bolted.

Debugging of the present utility model, to test material stretches, dimensional tolerance size according to the goods that draw out, in the fine setting district, put the fine setting pad of thin slice, paillon foil or the combination of its multi-disc of suitable thickness, stretch through repeated multiple times, till drawing out dimensional tolerance and reaching requirement, can formally put into production.According to the needs of producing, working roll can be formed rectangle, square, trapezoidal, rhombus, regular hexagon, cydariform, ellipse, bullet shaped, tunnel shape diplodal, draws out the shape of corresponding cross sectional shape.

Claims

The shape that stretches roll die device, comprising:

Framework, this framework place the mould bases position of stretching-machine, place the parts after working roll and roller frame make up in this framework;

Working roll, this working roll are protruding roller or recessed roller or plain-barreled roll or its combination, and the two end axles of working roll is bearing on the roller frame by means of bearing shell, form difform pass by the work roll surface;

The roller frame, this roller frame is bearing in the framework;

Bearing shell, the two end axles of this bearing shell supporting working roll, this bearing shell watt is made of brasses in the semicircle of the inserting the roller frame watt box and the arc holder that is buckled on the working roll;

It is characterized in that:

The a framework is by the outer die casing of the mould bases position that places stretching-machine and place the inner frame in the outer die casing to form;

B is provided with on outer die casing by bolt and installs thereon external mold upper shield;

C is provided with dimensional tolerance fine setting district between roller frame bottom surface and inner frame, be lined with the fine setting pad identical with roller frame bed-plate dimension in the fine setting district.