Method for making shapes of electrically conducting materials and apparatus for performing the same

FIELD: plastic working of metals.

SUBSTANCE: method comprises steps of deforming sheet blank by drawing it through closed working gage of draw plate; using linear electric motor at making shapes. In order to draw blank through closed working gage of draw plate at smoothly deforming it, pulling effort uniformly distributed along the whole length of deformation zone is provided. Said pulling effort is created due to interaction of traveling magnetic field induced in winding of stator of linear electric motor with eddy currents induced in blank for moving blank according to traveling magnetic field. Apparatus for making shapes of sheet blank includes draw plate with closed working gage. Apparatus for making shapes of electrically conducting material includes linear electric motor supporting draw plate with closed working gage; the last is fixed to said motor. It is possible to use as linear electric motor single-side linear electric motor, double-side linear electric motor or cylindrical linear electric motor.

EFFECT: enlarged manufacturing possibilities, enhanced quality of shapes.

5 cl, 6 dwg

 

The invention relates to the field of metal forming and can be used, in particular, in the manufacture of profiles from sheet blanks profiling in the instrumental filiere for products aerospace and mechanical engineering industry. The claimed invention is directed to the expansion of technological capabilities and improving the quality of roll-formed from sheet profiles.

There is a method of tensioning aluminum strip using FRET (linear induction motor), which creates a pulling force in the band, directed against the movement of the strip (see Sveceny A.I Electric machine is a direct drive. - M.: Energoatomizdat, 1988, pp. 80).

For reasons that impede the achievement of the following results when using the known method is that the known method cannot be used to obtain gotlibovich profiles, and therefore cannot ensure the expansion of technological capabilities.

A method of obtaining traction directly from electrical energy, which is generated in the stator winding lad (linear motor) traveling magnetic field (see Kershenbaum VA, Falk VE Horizons transport equipment. - M., Transport, 1988, s), (Yamamura S., Theory of linear induction motors. - L.: Energoatom the date 1983, p.132-133). The magnetic field induces in the secondary part (conductive strip) eddy currents. When the interaction of the magnetic field induced by the eddy currents generated power, taking the secondary part of the lad after traveling magnetic field. The secondary part of the lad is a non-magnetic electrically conductive (aluminum, copper) or reactive band (steel, iron) or combined ("sandwich"), consisting of aluminum and steel.

For reasons that impede the achievement of the technical result when using the known method is that the known method cannot be used to obtain gotlibovich profiles, and therefore cannot ensure the expansion of technological capabilities.

The closest way to the claimed invention on set of similar features is a method for manufacturing profiles, unveiled in device for a flexible, well-known from SU 482224 A, B21D 5/06 from 30.08.1975 was adopted as a prototype.

The known method is characterized by the following set of features, similar to the set of essential features of the claimed invention "Method of making profiles, including deformation of the workpiece by pulling through private working caliber of tool dies".

Distinctive features of the claimed method the t of the prototype is:

the production of profiles are made of electroconductive materials;

use linear motor;

when pulling the workpiece through the tool die plate's smooth deformation creates uniformly distributed over the entire length of the stretch deformation traction;

traction force is generated by interaction of the traveling magnetic field induced in the stator winding of the linear motor, eddy currents induced in the workpiece;

traction force moves the workpiece after traveling magnetic field.

It is known device the Mill to obtain profiles from sheet blanks, including instrumental die plate /see AS No. 468667 the USSR, IPC B21d5/06, publ. 30.04.75. Bull. No. 16/.

For reasons that impede the achievement of the technical result in the use of the known device is that in the known device:

traction is applied only where the touch calibration rollers with a profile, which affects the quality of the profile, because the application of the efforts of a point does not provide a uniform deformation over the cross section;

open loop instrumental of the die (on the ends of the billet) leads to the asymmetry of the deformation of the workpiece and the deterioration of the profile, reducing the range of profiles produced;

most metal is to be installed (alternator etc).

Closest to the claimed on set of similar features, taken as a prototype, is a device for the manufacture of profiles known from SU 482224 A, B21D 5/06 from 30.08.1975, Similar to that of the prototype with the claimed invention are the essential features:

used for the manufacture of profiles;

consists of instrumental dies closed-caliber work.

The technical result - the expansion of technological capabilities and improving the quality of profiles.

This technical result in the implementation of the invention is achieved by:

in a certain way in the manufacture of profiles produce deformation of the sheet workpiece when it is pulled through private working caliber of tool dies;

that known device for the manufacture of profiles consists of instrumental Spinneret.

The peculiarity lies in the fact that the production of profiles are made of electroconductive materials and use a linear motor;

to pull the workpiece through private working caliber of tool dies and her smooth deformation creates uniformly distributed over the entire length of the stretch deformation traction through the interaction of the traveling magnetic field induced in the stator winding linear elektrodvigatel what I with eddy currents induced in the workpiece;

created tractive force moves the workpiece after traveling magnetic field;

what instrumental filler closed working caliber is installed and fixed to the stationary linear motor.

In addition, the feature of the device is:

as a linear motor using one-sided linear motor (lad);

as a lad use double-sided LED;

as a lad use cylindrical lad.

Among the distinctive features of the claimed group of inventions and technical result is the following causal relationship:

traction force is evenly distributed along the entire length of the portion of the profile, where the deformation that makes the deformation is of uniform cross-section extending workpiece and increases the quality of the produced profile;

traction force moves the workpiece after traveling magnetic field, which ensures the smoothness of its deformation in a closed caliber tool dies and improves the quality of the profile.

private working caliber of tool dies guarantees the symmetry of the deformation increases the quality of the profile and expanding technological capabilities;

lower intensity adjustment for improved technology in the logic.

According to the authors ' knowledge, the set of essential features that characterize the essence of the invention, unknown in the prior art, which allows to make a conclusion about conformity of the invention, the criterion of "novelty".

According to the authors, the essence of the invention is not necessary for the expert in the obvious way from the prior art, because of him not detected above the impact on the technical result is a new property of the object: a collection of characteristics that distinguish the claimed invention from the prototype that allows to make a conclusion about its compliance with the criterion of "inventive step".

The invention is illustrated graphics. Figure 1 presents the method and the device with one LED, which it carries out; figure 2 - cross section A-a in figure 1; figure 3 - cross section B-B in figure 1; figure 4 - cross section b-b In figure 1; figure 5 - method and device with double-sided LED, which it carries out; figure 6 - method and apparatus with cylindrical LED, which it carries out.

The method is performed as follows. Flat conductive workpiece 1 in the thickness S0insert in a tool die plate 2. Create a traveling magnetic field with the stator LED 3 (figure 1), which leads into the workpiece 1 eddy currents. When the interaction of the magnetic field with the aiming is generated by the eddy currents create a force (tractive force), moving the workpiece 1 after traveling magnetic field, rather than provide a smooth deformation of the workpiece in the working caliber of tool dies, obtaining at the output of tool die profile 4 (figure 4) in the right section.

The method is carried out using a device (1)comprising the second claim of the linear motor is installed and secured on the stationary die instrumental closed-caliber work. The working caliber of tool dies has a lead-in part 5 (figure 2), width b which corresponds to the width of the workpiece. Next, the cross-section of the working caliber of tool dies (figure 2, 3, 4) is a smooth transition from the forms section of the original 1 (2) of the workpiece to the shape of the finished profile 4 (figure 4) at the output.

According to paragraph 3 of the claims as a lad use one-sided linear motor (1, 2, 3, 4).

According to 4 claim as a lad use double-sided linear motor 6 (figure 5).

According to 5 claim as a lad use cylindrical linear motor 7 (6).

The operation of the device is as follows. The workpiece (conductive material) 1 is inserted into the lead-in portion 5 instrumental Spinneret 2 (figure 2). State the LED generates a traveling magnetic field, which leads into the workpiece eddy currents. When the interaction of the magnetic field induced by the eddy currents generated power (traction), the driving of the workpiece after traveling magnetic field. Then the workpiece is pulled through the tool die plate and get ready profile 4 (figure 4).

Thus, the above data confirm that the implementation of the use of the claimed invention the following cumulative conditions:

the tool embodying the claimed method and the device in its implementation, is intended for use in industry, namely for the aerospace and engineering industry;

the tool embodying the claimed invention in its implementation, is able to achieve a technical result.

Therefore, the claimed invention meets the condition of "industrial applicability".

The proposed solution does not adversely impact on the environment.

1. The method of manufacture of profiles, including the deformation of the sheet by pulling through private working caliber of tool dies, characterized in that in the manufacture of profiles of electrically conductive materials using a linear motor, and to pull for is otoki through private working caliber of tool dies and her smooth deformation creates uniformly distributed over the entire length of the stretch deformation traction by traveling magnetic interaction field induced in the stator winding of the linear motor, eddy currents induced in the workpiece, which moves the workpiece after traveling magnetic field.

2. Device for the manufacture of sections of sheet blanks, containing instrumental die plate with a closed working caliber, characterized in that in the manufacture of profiles of electrically conductive materials, it contains a linear motor, instrumental filler closed working caliber is installed and attached to it still.

3. The device according to claim 2, characterized in that the linear motor used one-sided linear motor.

4. The device according to claim 2, characterized in that the linear motor used double-sided linear motor.

5. The device according to claim 2, characterized in that the linear motor used cylindrical linear motor.



 

Same patents:

FIELD: rolled stock production, namely equipment of shape bending mills, mainly for making tinned corrugated sheets.

SUBSTANCE: drive unit of shape bending mill with first guiding stand and pulling roller devices includes motor, reduction gear, sprockets, forcing and tensioning gear wheels, roller chain embracing sprockets along S-shaped curve and sine curve. Torque of motor is transmitted only to lower shaping rolls of even stands and of last stand of mill and also to both rolls of guiding stand and to horizontal rollers of pulling devices through sprockets mounted on their axles. Chain embraces sprockets of rolls of guiding stand and of rollers of pulling devices along S-shaped curve and it embraces sprockets of drive rolls and sprockets that are not joined with shaping rolls along sine curve. Axles of sprockets that are not joined with shaping rolls may be arranged higher than axles of lower drive rolls by value determined according to relation given in claims of invention.

EFFECT: lowered cost of shape bending mill, reduced power consumption for profiling, enhanced quality of ready shapes.

2 cl, 1 dwg, 1 ex

Shape bending mill // 2243841

FIELD: rolled stock production.

SUBSTANCE: shape bending mill used, mainly for producing tinned corrugated sheets includes successively mounted first guiding stand with cylindrical rolls, shaping duo-stands and pairs of vertical centering rollers. Shaping stands are assembled to units (each unit includes 3 - 5 stands) and mounted on common foundation plate of unit. Vertical centering rollers and additional one or two pulling devices are alternatively arranged between said units. Only first guiding stand is fully driven one. All even and last shaping stands have driven lower and idle upper rolls; odd stands have two idle rolls.

EFFECT: lowered production costs, enhanced quality of shapes.

3 cl, 1 dwg, 1 ex

The invention relates to the field of metal forming, in particular for cold sheet metal stamping

The invention relates to the processing of metals by pressure, namely, automatic lines for the production of profile

The invention relates to the field of metal forming and fabrication angular profiles mesh design

The invention relates to rolling production and can be used for the manufacture of high grade cold drawn profiles

The invention relates to the field of metal forming

The invention relates to the processing of metals by pressure and can be used for forming the profile of the strip on the roll forming mill

The invention relates to the processing of metals by pressure and can be used for forming the profile of the strip on the roll forming mill

The invention relates to rolling production and can be used in the manufacture of shaped tubes
The invention relates to the field of mechanical engineering

The invention relates to the processing of metals by pressure and can be used in the manufacture of parts made of tubular workpieces

The invention relates to a pressure treatment of metals, in particular, to devices for dispensing

The invention relates to the field of magnetic-pulse treatment of metals and is intended for use in mechanical engineering in shaping operations magnetic-pulse stamping

The invention relates to magnetic-pulse stamping and is intended for use in mechanical engineering in shaping operations magnetic-pulse stamping

The invention relates to the field of magnetic-pulse treatment of metals and can be used in engineering when receiving axisymmetric shells from tubular blanks

The invention relates to a cold sheet metal stamping, particularly to dies for punching holes in the billet grilles grinder

The invention relates to the field of metal forming and can be used in the manufacture of a new generation of the defining details of sensor equipment, radio and video equipment, bakery and milk processing, in the medical equipment in the manufacture of containers for storage of blood and long-term blood analyzers to AIDS, as well as the manufacture of basic elements bioproof-readers-converters, the determining module protection from electromagnetic fields from cell phones and Express analyzers abnormal growths of muscle tissue

The invention relates to the field of metal forming and can be used in the manufacture of a new generation of the defining details of sensor equipment, radio and video equipment, bakery and milk processing, in the medical equipment in the manufacture of containers for storage of blood and long-term blood analyzers to AIDS, as well as the manufacture of basic elements bioproof-readers-converters, the determining module protection from electromagnetic fields from cell phones, Express analyzers abnormal growths of muscle tissue and bio-Informatics systems

FIELD: plastic working of metals.

SUBSTANCE: method comprises steps of deforming sheet blank by drawing it through closed working gage of draw plate; using linear electric motor at making shapes. In order to draw blank through closed working gage of draw plate at smoothly deforming it, pulling effort uniformly distributed along the whole length of deformation zone is provided. Said pulling effort is created due to interaction of traveling magnetic field induced in winding of stator of linear electric motor with eddy currents induced in blank for moving blank according to traveling magnetic field. Apparatus for making shapes of sheet blank includes draw plate with closed working gage. Apparatus for making shapes of electrically conducting material includes linear electric motor supporting draw plate with closed working gage; the last is fixed to said motor. It is possible to use as linear electric motor single-side linear electric motor, double-side linear electric motor or cylindrical linear electric motor.

EFFECT: enlarged manufacturing possibilities, enhanced quality of shapes.

5 cl, 6 dwg

Up!