SU613561A1 - Device for sphere-moving stamping - Google Patents

Description

one

The invention relates to the field of metal forming and can be used in the manufacture of presses and devices for sphere-moving punching.

It is known a device for spherical moving punching, which consists of a drive comprising an engine, a flywheel, an eccentric, which interacts with power elbows arranged in a circle, hinged in the top plate and in the die holder. The alternate movement of the power knees is performed by pressing an eccentric onto the central hinge of the power link members. Together with the movement of the power knees, the matrix holder with the tool makes a swinging movement.

However, in the known device, the central hinge of the power knees experiences considerable friction against the eccentric, leading to wear. Its wear is aggravated by the fact that when straightening the knees, the central hinge, which is under load from the deforming force, moves along the surface of the eccentric. The presence of friction in this pair does not allow for an increase in the productivity of the device and creates the danger of the central hinge failing. The use of a hinge, operating at the same time in three planes, is not possible.

The purpose of the invention is to improve the performance and reliability of the device, simplifying its design.

This is achieved in that the power links are connected to the eccentric by means of a sliding sleeve which surrounds it, which is hingedly connected to the power links indicated.

FIG. 1 shows the proposed device, a general view: in FIG. 2 - section A-A of FIG. one.

The device consists of a drive wa, la 1, on the eccentric 2 of which its sleeve sleeve 3 is mounted. The sleeve is connected to the FORCE links 4, located along the circumference, by means of the hinges 5. The power links with one O free ends are pivotally connected to the bed 6, others - with the plate 7 of the matrix holder 8. The movement of the upper part of the power links 4 is limited by the guides 9 (Fig , 2).