Roller matrix for stamping tested to stamp with a drive punch

 

(57) Abstract:

Usage: the invention relates to the field of forging and stamping production and can be used for massive forming of axisymmetric parts. The inventive roller matrix for stamping tested to stamp with a drive punch contains system mounted with the possibility of rotation of the rollers, placed on carriages that are installed with the possibility of radial movement along the guides of the bottom plate of the stamp, and mounted parallel to the axes of the rollers stop, limiting the cavity of the matrix from the bottom plate, the drive system is made with the node transmitting torque to the emphasis that includes a drive shaft connected through a managed coupling with stop. The matrix allows to improve the quality of products and to reduce the complexity of manufacturing and maintenance. 1 Il.

The invention relates to the field of forging and stamping production and can be used for massive forming of axisymmetric parts.

In the known devices for axisymmetric parts of variable cross-section, based on the methods of cross rolling [1] torque to the workpiece is passed about the Finance directed in such a way, that creates a torque that prevents rotation of the billet that under certain values of the radial flow can lead to the turning of the rollers, the jamming of the workpiece and, consequently, to the emergence of marriage.

In the known device for implementing the method of obtaining details of stepped form [2] torque of the workpiece is transferred from one extreme position by friction forces at the contact surface, which may lead to the turning of the stop and jamming of the workpiece in the rollers with a large radial flow and, consequently, to the loss of product quality. The same has flaws and scheme with a drive punch. In addition, the constantly rotating the emphasis is not possible to reliably fix the workpiece on the position of the processing before the beginning of technological operations without the use of special devices, and stop the stop method off of the electric motor drive has a negative impact on the resource of his work because of the need to overcome with the inclusion of inertial resistance system emphasis billet punch videos. The rotation system of rollers around the workpiece applicable when testing large-sized products.

The invention solves the problem of increasing the kata electrical equipment.

For this purpose the roller matrix for stamping tested to stamp with a drive punch containing system mounted with the possibility of rotation of the rollers, placed on carriages that are installed with the possibility of radial movement along the guides of the bottom plate of the stamp, and mounted parallel to the axes of the rollers stop, limiting the cavity of the matrix from the bottom plate, and the drive system, the difference is that the drive system is made with the node transmitting torque to the emphasis that includes a drive shaft connected through a managed coupling with emphasis.

This delivers improved product quality by eliminating the possibility of turning of the tool relative to the workpiece, which is achieved by the transmission of torque to the punch blocks and stops, reducing the complexity of manufacture and maintenance, and extension of service life of electrical equipment due to the fact that the driven clutch includes a drive rotation stops only during the commit process operations, and the equipment operates continuously.

The invention is illustrated in the drawing.

The device comprises a plug 1 is installed with the possibility vratnica, consisting of spaced parallel to the axis of the workpiece 6 rollers 7 mounted for rotation in the carriage 8, located on the bottom plate 9 with the possibility of radial movement relative to the workpiece in the guide 10 through, for example, the cylinder 11. In the bottom plate coaxially with the punch set focus 12, the rotational drive which is carried out by means of a chain 13 through the driven clutch 14 from the drive shaft is continuously rotated by the motor 15 through a gear 16.

The device operates as follows.

The workpiece 6 is set to the stop 12, and the clutch 14 is disabled and fixed focus. Then the top plate 2 with rotating plug 1, chain transmission 3, slotted sleeve 5 moving on the splines of the shaft 4 together with the plate, lower to a contact of the punch with the workpiece and drive rollers 7 by moving in the guides 10 of the carriage 8 relative to the lower plate 9 by the hydraulic cylinders 11 to the desired diameter of the product, at the same time begin to rotate due to the inclusion of driven clutch, divert roller to its original position and remove the product, after which the process repeats with a new piece.

Thus, the proposed device implements the principle ASS="ptx2">

Roller matrix for stamping tested to stamp with a drive punch containing system mounted with the possibility of rotation of the rollers, placed on carriages that are installed with the possibility of radial movement along the guides of the bottom plate of the stamp, and mounted parallel to the axes of the rollers stop, limiting the cavity of the matrix from the bottom plate, and a drive system, wherein the drive system is made with the node transmitting torque to the emphasis that includes a drive shaft connected through a managed coupling with stop.

 

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Stamp fabrication // 2063835
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FIELD: metal working.

SUBSTANCE: hard alloy matrix has casing, bushing pressed in the case and hard alloy insertion. Bushing has multifaced hole. Hard alloy insertion is composed by several sections made in form of trapezoidal-section prisms which have cut angles at their non-working edges. Number of sections corresponds to number of faces of item to be headed. Cuts of angles are made symmetrically to faces of working edge. Slits are made in several places of multifaced hole bushing at the ponts where faces cross each other.

EFFECT: improved resistance of matrix; simplified assembly.

3 cl, 1 dwg

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