CN2427399Y

CN2427399Y - Internal pressing formation machine

Info

Publication number: CN2427399Y
Application number: CN 00208694
Authority: CN
Inventors: 苑世剑; 王仲仁; 郎利辉
Original assignee: Harbin Institute of Technology
Current assignee: Heilongjiang Tong Technology Co., Ltd.
Priority date: 2000-05-12
Filing date: 2000-05-12
Publication date: 2001-04-25
Anticipated expiration: 2010-05-12

Abstract

The utility model relates to an internal pressing forming machine, particularly tube forming technical equipment which is mainly used for forming various hollow parts. A level press in the utility model is assembled in a vertical press. A mould is divided into an upper and a lower moulds which are arranged on the vertical press. A tube blank is placed in a mould cavity of the mould directly or through preformation. Pressure liquid is injected into the inner part of the tube blank by a high-pressure source. A quantitative matching relation can be realized between the axial displacement of the level press and the pressure of the high-pressure liquid. The utility model can be used for forming various hollow structural components in the fields of planes, automobiles, etc.

Description

Press shaping machine in a kind of

The utility model relates to a kind of with the highly pressurised liquid hollow part that is shaped, and particularly utilizes tubing as the be shaped equipment of various hollow parts of blank.

In fields such as aircraft and automobiles, expendable weight is people's long-term aim with economical with materials and operating energy, also is one of trend of modern advanced manufacturing technique development.Enter the nineties,, the lightweight of vehicle structure is seemed become more and more important owing to the strictness restriction of fuel and cost of raw material reason and environmental regulation to exhaust emission.Except adopting light material, another main path of loss of weight is exactly structurally to adopt " real with empty generation ", promptly for the member that bears based on bending or torque load, adopt the hollow structure not only can the expendable weight economical with materials but also can make full use of the strength and stiffness of material.A kind of advanced manufacturing technology of making hollow light body spare that internal high pressure forming grows up under such background just.The hollow part conventional fabrication processes adopts the method for welding after the punching press mostly, but shortcomings such as the punching press weldment exists that solder joint is many, poor fatigue properties, many, the follow-up amount of machining of operation are big and the process-cycle is long.

The purpose of this utility model provides a kind of interior pressure shaping machine of special use, promptly utilizes fluid pressure prefabricated pipe to be expanded into the part shape of various required hollows on hydraulic compressor.

The purpose of this utility model is achieved in that at first pipe is placed in the mould, utilizes vertical press to carry out locked mode then; The hydraulic cylinder piston of level press moves in the horizontal direction, drive punch and withstand the port of pipe to promote the port axial feed of pipe, inject liquid by high-voltage power supply to pipe inside simultaneously, the pipe internal pressure is raise, and interior pressure and axial feeding can be realized that determine, controlled relation, thereby pipe is expanded into the various parts with mold cavity interior shape.Concrete structure of the present utility model is made up of the vertical press that clamp force is provided, the level press that axial feed is provided and high-voltage power supply three parts, provide the level press of axial feed to have commonality, can be installed on any satisfactory vertical press of installation dimension; Axial feed and interior pressure can realize quantitative matching relationship, with the machining shape complicated parts, the utility model provides the level press of axial feed mainly to comprise two pistons and two punch, wherein piston 1 is connected with punch 9 with punch 2 respectively with piston 8, and be installed on the vertical press 4, this level press and mould 5 are installed on the vertical press 4; High-voltage power supply 7 injects highly pressurised liquid by hole 6 to pipe 3.When processing parts, mould 5 is divided into upper and lower mould and is installed on the vertical press 4, and pipe 3 directly or through behind the preform is put in the mold cavity, then the patrix of mould 5 and counterdie matched moulds.Then, there being the liquid of pressure to be injected into pipe 3 inside, the punch 2 of level press and punch 9 axially advance under the drive of piston 1 and piston 8 high-voltage power supply 7 simultaneously, and side seal and axial feed are provided by hole 6.In the course of processing, the longitudinal travel of punch 2 and punch 9 and pipe 3 in-to-in fluid pressures can be realized certain matching relationship.

Advantages such as that the part that the utility model is shaped has is in light weight, rigidity and intensity are good have wide application prospects on manufacture such as aircraft and automobile.

Fig. 1 is the utility model principle assumption diagram

Embodiment:

Convex mould diameter in the utility model is 100 millimeters, and 220 millimeters of diameter of pistons can reach 1,500 thousand Ns by the axial thrust that piston produced, and the high-pressure that high-voltage power supply produces can reach 150 MPas, and vertical press is the HYD-Y61-400/600S.M type.

Claims

1, a kind of interior shaping machine of pressing, it is characterized in that: the piston of level press [1] is connected with punch [9] with punch [2] respectively with piston [8], and be installed on the vertical press [4], mould [5] is divided into upper and lower mould and is installed on the vertical press [4], and pipe [3] is put into mold cavity.