SU1315266A1 - Device for hardening-finishing treatment of external surfaces of bodies of revolution - Google Patents

Abstract

The invention relates to hardening and finishing treatment by surface plastic deformation of parts of complex shapes and ensures reliable operation of devices. The goal is to improve the quality of processing. The roll head contains a roller, a stapled mandrel and an element for its return. The force required to set up and hold a staple holder 2 with a knurling roller 4 in the normal position relative to the profile being machinedj does not exceed the rolling force. This is ensured by the presence of a counterweight with a weight of 8, which partially balances the holder with the knurling roller 4 when not in use, and also due to the location of the swing axis at the end of the holder from the side of the rolling roller, which allows the holder to self-align. -1 Cp- f-ly, 2 ill. Type / 7 I cl ed 05 Phage. 2

Description

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The invention relates to metalworking by plastic deformation, in particular, to rolling treatment of the outer surfaces of rotational parts with convexo-concave forming self-adjusting knurling. .

The purpose of the invention is to improve the quality of processing by stabilizing the processing force and improving reliability.

FIG. 1 shows the proposed device, a general view; FIG. 2 is a view A of FIG. one.

The device contains a vertically positioned;} live hydraulic caliper 1 with a self-adjusting knurled head, the holder 2 of which is fixed to the hydraulic copy caliper 1 and carries a clamped mandrel 3 with a deforming roller 4 mounted on the fingers 5 and 6, the rolling axis 7 of which is located in front the axis of the deforming roller 4. On the mandrel 3, an element of its return to the initial position, made in the form of a counterbalance with a weight 8, is fixed. The design parameters of the device are chosen so that the distance from the axis 7 of the mandrel rolling is 3 d about the axis of the deforming roller 4 is greater than the radius of the latter.

When setting up the device, the center of gravity of the counterweight with the load 8 is set and fixed in such a position that the maximum amplitude of swing of the center of gravity of this counterbalance during operation of the device does not exceed 90 ° (otherwise the holder does not return to its original position).

At the same time, in a free state, the mandrel 3 is positioned with the roller 4 at an angle of sec. To ensure reliable insertion of this holder into the working (normal relative to the profile being processed) position.

The device works as follows.

A workpiece fixed in the spindle of a hydrocopy machine is set to rotate. The deforming roller 4 is brought into contact with the workpiece surface. Hydrocopyro

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The shaft slide 1 is axially displaced and vertical from the copier. The deforming roller 4, rolling on the surface of the workpiece,

always carries out the deformation of the surface with a force directed perpendicular to the tangent to the surface being treated in the contact zone due to the rotation of the clip-on

the mandrel 3 about the axis 7. After the end of the treatment, the hydrocoping caliper 1 removes the deforming roller 4 from contact with the surface to be treated, and the counterweight with the load

8 returns the bracket 3 to its original position.

The proposed device, due to the presence of a counterweight that balances the holder with a knurling roller at an angle about, in an idle position, ensures reliable operation as well as a relatively high quality of processing, since the force required to keep the holder with the knurled roller in a normal position relative to the profile being processed does not exceed rolling force.

invention formula

1. A device for strengthening and finishing treatment of the external surfaces of rotational parts with convex-water

a bent generatrix containing a vertically positioned hydrocoupler caliper with a self-adjusting knurled head, made in the form of a holder and a clamp-type mandrel with a deforming roller, the swing axis of which is located in front of the deforming roller and an element for returning the mandrel to its original position, which is talted

so that, in order to improve the quality of processing by stabilizing the processing ation, the element of returning the mandrel to its initial position is designed as a counterweight to the load.

2. The device according to claim 1, characterized in that, in order to increase the reliability of operation, the distance from the OSG and the touch of the mandrel to the axis of the deforming roller is chosen

large radius last.

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Claims (1)

SUMMARY OF THE INVENTION 1. A device for hardening-finishing processing of the outer surfaces of rotation parts with a convex to 35 bent generatrix, comprising a vertically arranged hydrocopy caliper with a self-adjusting knurling head made in the form of a holder and a staple-shaped mandrel with a deforming roller, the swing axis of which is located in front of the axis of the deforming roller, and the element of returning the mandrel to its original position, characterized in that in order to improve the quality of processing by stabilizing the processing force, the element returns The mandrel at the initial position is made in the form of a counterweight with a load. 50 2. The device according to claim 1, characterized in that, in order to increase reliability, the distance from the axis of touch of the mandrel to the axis of the deforming roller is chosen 55 large radius of the latter.