SU510358A1 - Device for vibration work hardening of long parts - Google Patents

Description

one

The invention relates to the field of strengthening of parts by the method of surface plastic deformation in order to increase their reliability and durability and can be applied in various parts of the engineering industry.

Devices for finishing parts are known that contain a vibro-drive with strikes on the slab.

The disadvantages of the known devices are the low quality of machining parts and the impossibility of machining long parts.

The described device differs from the known ones in that the plate is installed in it resiliently and perceives the impact of the vibration exciter. In the case, a zeitral hole is made for the passage of parts, and the strikers are rods that are spring-loaded on both sides and equipped with adjustable stops. This makes it possible to process lengthy parts without special tools, which leads to improved surface quality.

FIG. 1 but the proposed device, front view; in fig. 2 is a section along A-A in FIG. one.

The device is a plate 1 suspended on elastic elements 2 and receiving through elastic coupling 3 by means of

vibration exciter 4 oscillatory movements. The strikers 6 are fixed on the slab of the elastic elements 5. The strikers are provided with adjustable weight 7 n movable stops 8. Parts 9 are passed through the holes in the slab, which have a separate drive for translational and drape movements. The device operates as follows. The vibration exciter 4 informs the plate 1 ellintical or circular oscillations. Under the action of the oscillatory movement of the slab, the strikers oscillate with the frequency of forced oscillations and amplitude, depending on the weight of the load 7 and the rigidity of the elastic elements.

(nruzhpn) 5. At the same time, the strikers oscillate in antiphase with respect to that part of the filament on which they are fixed.

Due to the resonant tuning of the natural frequency of the strikers and the forced oscillations of the vibration exciter, the maximum oscillation of the strikers is achieved, which is much larger than the device's oscillation, which makes it possible to obtain large accelerations of the strikes during small dynamic loads on the device nodes. When submission of parts occurs, the impact of the impactors with the surface of the parts. As a result of the shock interaction, surface plastic deformation of the parts occurs,

which leads to the hardening of the post. The degree of work hardening of the parts can be adjusted by changing the amplitude of oscillations of the strikers and the mass of the weights 7. When processing the details, the translational and rotational movements are reported using special mechanisms. In this way, uniformity is achieved and a work hardening density is required. Suspension of the strikers on the elastic elements allows the strikers to shift relative to the workpiece during operation, which makes it possible to process parts of variable cross section.

Claims (1)

4 claims A device for vibrating the hardening of the surfaces of lengthy parts, containing an internal electrical conduit located on the slab, characterized in that, in order to improve the quality of processing, the slab is installed elastically and connected to the vibration exciter; is a spring-loaded from both sides rubbed pi, equipped with adjustable stops. k-k