CN203664455U - Novel elastic medium electromagnetic direct induction forming tool - Google Patents

Abstract

The utility model relates to the technical field of electromagnetic forming test devices, in particular to a novel elastic medium electromagnetic direct induction forming tool. A lower base plate is arranged at the bottom inside a die frame, the upper end of the lower base plate is connected with a die seat, a concave die is arranged on the die seat, an elastic medium is arranged on the upper portion of the concave die, the upper end of the elastic medium is connected with a coil through a drive sheet, the coil is connected with an upper base plate, and the upper base plate is arranged at the top end of the inner side of the die frame. Paired rigid dies are not needed based on the electromagnetic forming technology, the die tool is simple, machining is easy, cost is low, and the manufacturing period is short. The tool formed through the pressure transmitting medium should be adopted for sheets which are poor in electrical conductivity or are good in electrical conductivity and have the blank thickness smaller than the penetration depth of a magnetic field, product part precision is high, freezing performance is good, elastic reset deformation is small, and the quite good effect is achieved.

Description

A New Electromagnetic Direct Induction Forming Tooling of Elastic Dielectric

technical field

The utility model relates to the technical field of electromagnetic forming test devices, in particular to a novel elastic medium electromagnetic direct induction forming tool.

Background technique

Bursting disc is one of the anti-overpressure safety accessories for pressure vessels, pipelines and other pressurized closed devices and equipment, and its function is equivalent to the fuse on electrical equipment. Bursting discs are all made of thin plates, and the size can be several millimeters to hundreds of millimeters in diameter. The traditional stamping method is pneumatic forming or hydraulic forming, which is difficult to guarantee its quality and performance requirements. Using the electromagnetic forming process to form can not only obtain excellent products, but also achieve better economic benefits. For thin sheets with poor conductivity, or good conductivity but the thickness of the blank is smaller than the penetration depth of the magnetic field, it is difficult to process using the existing electromagnetic forming mold, the manufacturing cycle is long, and the structural design is not reasonable enough, which affects the production of bursting discs.

Therefore, in order to overcome the deficiencies of the above-mentioned technologies, it is designed to process thin sheets with poor conductivity, or good conductivity but the thickness of the blank is smaller than the penetration depth of the magnetic field. The mold tooling is simple, easy to process, low in cost, and short in manufacturing cycle; A new type of elastic medium electromagnetic direct induction forming tool with high part precision, good freezing performance and small elastic recovery deformation is exactly the problem that the inventor wants to solve.

Contents of the invention

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a new type of elastic medium electromagnetic direct induction forming tool, which has a simple structure, is easy to use, and is not good for conductivity, or the thickness of the blank is smaller than the penetration depth of the magnetic field although the conductivity is good. The thin sheet material has a very good processing effect, the mold tooling is simple, easy to process, low cost, and short manufacturing cycle; the product parts have high precision, good freezing performance, small elastic recovery deformation, and have very good practical value.

The technical solution adopted by the utility model to solve the technical problem is: a new elastic medium electromagnetic direct induction forming tool, which is characterized in that: the tool includes a mold frame, an upper backing plate, a coil, a driving piece, an elastic medium, a concave mold, a mold Seat, lower backing plate, the lower backing plate is set on the bottom of the inner side of the mold frame, the upper end of the lower backing plate is connected with the mold base, the die base is provided with a die, the upper part of the die is provided with an elastic medium, and the upper end of the elastic medium is connected to the coil through the drive piece , the coil is connected to the upper backing plate, and the upper backing plate is arranged on the inner top of the formwork.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

1. The electromagnetic forming process of the present utility model does not require a pair of rigid molds, and the tooling of the mold is simple, easy to process, low in cost, and short in manufacturing cycle; for poor conductivity, or good conductivity but the thickness of the blank is smaller than the penetration depth of the magnetic field Thin sheet materials should adopt the tooling formed by the utility model using the pressure transmission medium. The product parts have high precision, good freezing performance, small elastic recovery deformation, and very good results.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Description of the drawings: 1-mold base; 2-upper backing plate; 3-coil; 4-drive piece; 5-elastic medium; 6-blank material; 7-die; 8-die base;

Detailed ways

The utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not intended to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Fig. 1 is a schematic diagram of the structure of a new type of elastic medium electromagnetic direct induction forming tooling of the utility model, the tooling includes a mold base 1, an upper backing plate 2, a coil 3, a driving piece 4, an elastic medium 5, a die 7, a mold base 8, a lower The backing plate 9 and the lower backing plate 9 are arranged on the inner bottom of the formwork 1, the upper end of the lower backing plate 9 is connected with a die base 8, the die base 8 is provided with a die 7, the upper part of the die 7 is provided with an elastic medium 5, and the elastic medium 5 The upper end is connected to the coil 3 through the driving piece 4 , the coil 3 is connected to the upper backing plate 2 , and the upper backing plate 2 is arranged on the inner top of the mold frame 1 .

When the utility model is in use, the magnetic field energy is transmitted to the blank 6 by using the driving plate 4 and the elastic medium 5, and the molding is realized through the die 7. The conductivity is not good, or the thickness of the blank is smaller than the magnetic field penetration although the conductivity is good. For the deep thin sheet material, the utility model adds the driving piece 4 and the elastic medium 5, and the tooling formed by the pressure transmission medium has high precision of the product parts, good freezing performance, small elastic recovery deformation, and has a very good effect.

Claims (1)

1. A new type of elastic medium electromagnetic direct induction forming tooling, characterized in that: the tooling includes a mold base, an upper backing plate, a coil, a drive piece, an elastic medium, a die, a mold base, and a lower backing plate, and the lower backing plate is arranged on the mold At the bottom of the inner side of the frame, the upper end of the lower backing plate is connected with a die base, the die base is provided with a die, and the upper part of the die is provided with an elastic medium. on the inside top of the formwork.