SU901035A1 - Device for strengthening-finishing treatment of parts surfaces - Google Patents

Description

The device relates to threshing machines for running in order to seal the surface layer and is intended for hardening ^- finishing of external surfaces by plastic deformation.

A device for hardening processing, comprising a rotatably mounted mandrel with working elements located on elastic suspensions, a mechanism for controlling the departure of working elements and a drive [1].

However, the known device does not provide sufficient performance and high quality machined surfaces, has a wide technological capabilities.

The purpose of the invention is to increase productivity and expand technological capabilities.

This goal is achieved by the fact that the device is equipped with an elastic sleeve and studs placed on the mandrel.

with recesses designed for fastening elastic suspensions. The mechanism for controlling the departure of working elements is made in the form of rings with radial and rings with spiral grooves paired at each end of the mandrel *, connected by axes with V-shaped leaf springs on them.

1® The device is also equipped with a copier and a bearing with a spherical outer surface, while the copier is mounted on one of the end surfaces of the mandrel, the kinematic bearing ^{15 is} tactically connected to the machine drive, and the mandrel is spring loaded in the axial direction.

In FIG. 1 shows a mandrel, an axial section; in FIG. 2 is a section ²⁰ AA in FIG. 1; in FIG. 3 is a section bb in FIG. 1; in FIG. 4 is a diagram of the operation of the device on a horizontal milling machine.

The device comprises a mandrel 1 mounted on the drive shaft of the machine, an elastic sleeve 2, designed to compress the elastic suspensions 3 having working elements 4 at their unconnected ends, made, for example, in the form of spheres. To keep elastic suspensions 3 from falling out, studs 5 with grooves 6 are used. On two adjacent studs 5, grooves 6 are offset relative to each other, for example, in a checkerboard pattern. Elastic suspensions 3 in a certain position are fixed using axles 7 with V-shaped leaf springs 8 on them.

To regulate the departure of the working elements 4, rings 9 and 10 are arranged in pairs at each end of the mandrel, while in the rings 9 there are made radial grooves 11, and in the rings 10 - spiral grooves 12. . Depending on the direction in which the rings 10 are rotated when adjusting, the axes with the springs 8 rise or fall, and therefore, the overhang of the working elements®4 decreases or increases.

To fix the axes 7 in the required position on the rings 9, a number of holes 13 are made, and the pin 14 is pressed into the ring 10. The adjustment on both rings is provided by the applied marks 15, which have the same angular arrangement as the holes for the pin 14. All parts are mounted on the mandrel 1 using nuts 16 and locknuts 17. On one of the ends of the mandrel 1 there is a copy surface 18, the sweep of which around the circumference is, for example, a sinusoid repeated a predetermined number of times, and a shaft 19 connected to the spindle is installed on the other end it pruzhynu machine and bearing 20. In order to provide for horizontal milling machine minutes vibroperemescheniy.ustroystvo messages it is further provided with a shaft 21 fixedly attached to the trunk of the machine. The axis 21 carries a spherical bearing 22, interacting with a carbon surface 18,

The device operates as follows "

901035 ₄

When processing the outer surfaces of parts on horizontal milling machines, the device is installed in place of the milling head, while _5, the bearing 22 is rigidly connected to the trunk of the machine through the axis 21. The workpiece is clamped in a fixture mounted on the machine table. Turn on the rotation of the spindle Yu of the machine, transmitting rotation from it through the shaft 19 to the mandrel 1, and then on. tea table serving. Mandrel 1 is informed of vibration displacements, the number of which per minute is equal to the product of the revolutions of the same mandrel by the number of protrusions of the carbon surface 18. The working elements 4 hit the surface of the part, plastically deforming it, harden and reduce the roughness of the treated surface.

The use of the proposed device increases the productivity of processing, It has a large universal ₂₅ versatility, can be used on a variety of metal-cutting equipment.

Claims (1)

 Oral means a running-in machine for the purpose of sealing the surface layer and is intended for strengthening-finishing of external surfaces by plastic deformation. A device for strengthening treatment, comprising a mandrel mounted with a possibility of rotation with work elements located on elastic hangers, a mechanism for controlling the departure of work elements, and an actuator SP is known. However, the known device does not provide sufficient performance and high quality of the machined surfaces, it has rather low technological capabilities. The purpose of the invention is to increase productivity and expand technological capabilities. This goal is achieved by the fact that the device is provided with an elastic bushing and studs with undercuts placed on the mandrel for fastening elastic hangers. The mechanism for adjusting the overhang of the working elements is made in the form of rings with radial rings and rings with spiral grooves located in pairs at each end of the mandrel and connected with each other by axes with V-shaped leaf springs attached to them. The device is also equipped with a copier and a bearing with a spherical outer surface, with the copier mounted on one of the end surfaces of the mandrel, the bearing is connected with the machine drive, and the mandrel is spring-loaded in the axial direction. FIG. 1 shows the mandrel, axial section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section B-B in FIG. I; in fig. 4 is a diagram of the operation of the device on a horizontal milling machine. 3 The device comprises a mandrel 1 mounted on the machine drive shaft, an elastic sleeve 2 designed to tighten the elastic suspensions 3 having working elements 4 at their unrelated ends, made for example in the form of spheres. In order to prevent elastic hangers 3 from falling out, the studs 5 with the perforated grooves 6 are used. On the two adjacent studs 5, the recesses 6 are displaced relative to each other, for example, in a checkerboard pattern. The elastic suspensions 3 are fixed in a certain position by means of axles 7 with V-shaped leaf springs 8 mounted on them. To adjust the mounting of the working elements 4, rings 9 and 10 arranged in pairs at each end of the mandrel are used; radial grooves II are made in the rings 9, and in the rings 10, the spiral grooves 12; Pairs of the rings are connected by axes 7, which are inserted at the intersection points of the said grooves. Depending on the direction in which the ring 10 is rotated when adjusting, the axes with springs 8 rise or fall, and consequently, decrease or decrease; 1 flight of the working elements 4 of fixation in the required position of the axes 7 on the rings 9 is performed in a number of holes 13, and ring 10 is pressed in pin 14. Convenience of adjustment on both rings is provided with worn marks: Ami 15, having the same angular location as the holes for pin 14. All parts are fixed to mandrel i with nuts 16 and lock nuts 17. On one of the ends of the mandrel 1 release A copier surface 18, the sweep of which n circumference is, for example, a sinusoid, repeated set number of times, and the other end is fitted with a shaft 19, connected by an erpie splitting machine and carrying a spring 20. For ensuring work on a horizontal milling machine and informing him of the movements. the device is provided with an axis 21, rigidly attached to the trunk of the machine. Axis 21 carries a spherical bearing 22 interacting with a copier: surface 18. The device operates in the following way. When machining the external surfaces of parts on horizontal milling machines, the device is installed in place of the milling head, while the bearing 22 is rigidly connected with the trunk of the machine through axis 2. The item to be patched is clamped in the fixture mounted on the tank table. Turn on the rotation of the spindle of the tank, transferring rotation from it through the shaft 19 to the mandrel 1, and then include the supply of the table. The mandrel 1 will be informed of the vibration displacements, the number of which per minute is equal to the product of borings of the same mandrel by the number of projections of the copier surface 18. The operating elements 4 strike the surface of the part, plastically deform it, strengthen it and reduce the roughness of the treated surface. The use of the proposed device improves processing performance. It has great versatility, can be used on a variety of metal-cutting equipment. Formula from & 1. The device for hardening and finishing surface treatment. Parts containing mandrel installed with the possibility of rotation with work elements, located on elastic suspensions, the mechanism of adjustment of working elements and the drive, so that in order to achieve performance , it is provided with an elastic bushing and spikes with undercuts placed on the mandrel for fastening elastic suspensions, and the mechanism for controlling the outreach of the working elements is designed as pairs Assumption at each end of the mandrel with radial rings, and rings with spiral grooves associated with each other with axes put on them V-shaped leaf springs. 2, The device according to claim: 1, characterized in that, in order to expand the technological capabilities, it is equipped with a copier and a bearing with (;: ferric carousel surface, while the copier is mounted on the end surface of the holtz with radial grooves, the bearing is kinematically connected with the drive, and the mandrel is spring-loaded in the axial direction. Sources of information taken into account in the examination 1, USSR Author's Certificate No. 165183, cl. C 21 D 7/06, 1962. 13 lif / / (rig 2 /; Fig.Z 20/5 ШШ bbboii: (rig.