CN103706710A

CN103706710A - Stamping mold of special-shaped connecting pipe

Info

Publication number: CN103706710A
Application number: CN201410017635.2A
Authority: CN
Inventors: 张凯; 范飞; 马玉玫; 任延顺; 王启武
Original assignee: Lanzhou LS Heavy Equipment Co Ltd
Current assignee: Lanzhou LS Heavy Equipment Co Ltd
Priority date: 2014-01-15
Filing date: 2014-01-15
Publication date: 2014-04-09

Abstract

The invention provides a stamping mold of a special-shaped connecting pipe, and relates to a machining method of the special-shaped connecting pipe in pressure container products. The defects that a traditional forging machining method is high in cost and long in manufacturing cycle are overcome. The stamping mold of the special-shaped connecting pipe structurally comprises a connecting pipe concave mold 1, a discharging plate 2, a positioning plate 3, a limiting block 4 and a connecting pipe convex mold 5. The cross section at one end of the connecting pipe concave mold 1 and the cross section at one end of the connecting pipe convex mold 5 are semicircular, the cross section at the other end of the connecting pipe concave mold 1 and the cross section at the other end of the connecting pipe convex mold 5 are square or semi-elliptic, and the two ends of the connecting pipe concave mold 1 and the two ends of the connecting pipe convex mold 5 are connected in a conical mode. The positioning plate 3 is placed in the middle of the connecting pipe concave mold 1, and the limiting block 4 is placed at the square end or the semi-elliptic end of the connecting pipe convex mold. The connecting pipe concave mold 1 and the connecting pipe convex mold 5 are made of materials with good self-lubrication performance. The stamping mold of the special-shaped connecting pipe can guarantee the hot stamping forming and demolding of the special-shaped connecting pipe easily, operation is convenient, mold universality is high, the applicable size range is wide, cost is greatly lowered, efficiency is improved, and all performance indexes can meet relevant standard requirements.

Description

The punch-forming mold that a kind of abnormity is taken over

Technical field

The present invention relates to the processing method that in pressure vessel product, a kind of abnormity is taken over.

Background technology

At present, in equipment in Oil Refining, Coal Chemical Industry equipment and other pressure vessel, through conventional abnormity, take over and connect two difform parts.Conventionally the thickness of pipe wall that abnormity is taken over, its structure one end section is circular, other end cross section is quadrangle or ellipse, taper connection between two ends, the processing method that tradition abnormity is taken over adopts the mach method of forging, to equipment require high, forging cost is high simultaneously, and the manufacturing cycle is long.

Summary of the invention

The technical problem that the present invention solves is to overcome the shortcoming that above-mentioned abnormity is taken over traditional diamond-making technique, raises the efficiency, and reduces costs.

The invention provides the press forming die that a kind of abnormity is taken over, comprising: take over die 1, stripper 2, location-plate 3, limited block 4, take over punch 5; Described adapter die 1, an end section of taking over punch 5 is semicircle, other end cross section is square or semiellipse type, taper connection between two ends; Described location-plate 3 is being taken over the middle part of die 1, and described limited block 4 is being taken over square or semiellipse type one end of punch.Adapter die 1, adapter punch 5 are selected the good material of self lubricity.

A key problem in technology difficult problem of the present invention is to solve in the non-round surface bullet drop stamping of heavy wall sheet-metal press working, its structure is that an end section is circular, other end cross section is the sheet forming problem that quadrangle or oval-shaped abnormity are taken over, and when taking over punch, adapter Die Design, must consider the cooled amount of contraction of hot pressing workpieces; Location-plate will guarantee that location rapidly, accurately on mould; Take over die 1 for this reason, to take over punch 5 material requirements self lubricities better.

The present invention compared with prior art has the following advantages:

1, be easy to guarantee the hot press-formed and demoulding of abnormity adapter, easy to operate.

2, described adapter die, takes over punch and selects the material that self lubricity is good, and die profile and size can one-time-reach-places, and without carrying out machined moulding, mould highly versatile, greatly reduces cost, has improved efficiency again.

3, adopt the limb of the thick wall special-shaped adapter of this Mould Machining, the property indices such as apparent size, form and position tolerance, mechanical performance and physics and chemistry test all reach relevant criterion requirement.

4, this mould suitable dimensions scope is larger, height of nozzle≤1500mm, 10mm≤wall thickness≤60mm.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is for taking over cavity die structure schematic diagram;

Fig. 3 is Fig. 2 left view;

Fig. 4 is for taking over punch structure schematic diagram;

Fig. 5 is Fig. 4 left view;

Fig. 6 is limited block schematic diagram;

Fig. 7 is a kind of special-shaped adapter figure;

Fig. 8 is Fig. 7 top view;

In figure, each parts mark is as follows:

1-adapter die, 2-stripper, 3-location-plate, 4-limited block, 5-adapter punch.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.

As shown in Figure 1, the forming die structure that abnormity is taken over comprises: take over die 1, stripper 2, location-plate 3, limited block 4, take over punch 5; Described adapter die 1, an end section of taking over punch 5 is semicircle, other end cross section is square or semiellipse type, taper connection between two ends; Described location-plate 3 is being taken over the middle part of die 1, and described limited block 4 is being taken over square or semiellipse type one end of punch.Adapter die 1, adapter punch 5 are selected the good material of self lubricity.

During use, adapter punch 5 is arranged on forcing press central authorities slide block; Abnormity is taken over minute symmetrical two lobe blankings, and every lobe is placed in respectively to be taken in die 1, and location-plate 3 is controlled the position that blank is placed, and takes over die 1 and is connected with press bench, takes over die 1 play while preventing work; By press equipment, move downward, take over punch 5 and slip into adapter die 1, limited block 4 is definite slips into position, completes the heat stamping and shaping of thick wall special-shaped adapter; Press equipment moves upward, and drives adapter punch 5 to move upward to depart from and takes over die 1, utilizes stripper 2 to complete the demoulding work that abnormity is taken over.

Claims

1. the press forming die that abnormity is taken over, is characterized in that: its structure comprises takes over die (1), stripper (2), location-plate (3), limited block (4), adapter punch (5); One end section of described adapter die (1), adapter punch (5) is semicircle, and other end cross section is square or semiellipse type, taper connection between two ends; Described location-plate (3) is being taken over the middle part of die (1), and described limited block (4) is being taken over square or semiellipse type one end of punch (5).

2. the press forming die that a kind of abnormity of claim 1 is taken over, is characterized in that: adapter die (1), adapter punch (5) are selected the good material of self lubricity.