CS242212B1 - Device for copying rotating eccentric surfaces - Google Patents

Abstract

The purpose of the invention is to ensure copying of the movement of an eccentrically offset pin, while the rotating pin has a coupled movement with the copying mechanism. The supporting body of the copying mechanism performs a circular path with a radius equal to the eccentricity of the pin. The copying mechanism is adjusted by a pneumatic cylinder and the radius of rotation is adjustable by a stop.

Description

The object of the invention is a device for copying rotary, eccentric surfaces.

At present, in devices where it is necessary to carry out a certain operation on a rotational, eccentric surface, most often the methods are used in which the eccentric part moves to the axis of rotation. This method requires production-intensive fixtures for clamping, for heavy pieces, the need to balance the rotating mass, and for large eccentric components, a large rotational diameter of the device is required. ;

These drawbacks are overcome by the copier according to the invention, which is based on the fact that the support body is carried by a guide mechanism and each point thereof moves along a circular path with a radius set according to the desired eccentricity. The copying mechanism according to the invention provides for a very rapid adjustment of the mechanism from the basic to the offset position without the need for offset and balancing of the component.

An apparatus for copying rotary eccentric surfaces is shown in the attached diagram.

The device consists of a square shaft 2 rotatably mounted on the carriage 1. A square shaft 2 rotates the guide wheel 3 via a groove 12. In the guide wheel groove 3 there is a stop 8, adjustable by a screw 9. The guide wheel 3 is connected to a square 2. The rollers 7, which are rigidly connected to the support body 4, roll on the surface of the guide wheel 3. The support body 4 is displaceably mounted in a linear guide 5 of the articulated parallelogram 11, which is mounted on the carriage 1. The whole assembly is balanced by counterweight 6, on the shoulder of the joint paralelogram 11.

The copier was used for welding crankshafts. A welding head and a flux reservoir were attached to the support body 4. A major benefit was the rapid rebuilding of the device for welding the main or connecting rod pins of the noise shaft.

The copying device can be used in various operations on rotary eccentric surfaces, where it is necessary to change the position of the axis of rotation of the component.

Claims (1)

SUBJECT Apparatus for copying rotary eccentric surfaces with variable radius of rotation of the support body, characterized in that the support body (4) attached through the straight lines (5) and the articulated parallelogram (11i on the carriage (1) is tied via the roller guide). a wheel (3) mounted in a groove (12) on a square shaft (2), which is connected by a pneumatic cylinder (10) to a guide wheel (3) on which the stop (8) is adjustable by a screw (9).