SU1495091A2 - Burnishing apparatus - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to surface treatment by means of surface plastic deformation. The purpose of the invention is the expansion of technological capabilities by processing one size of holes with different tension. The device is equipped with a disk mounted on the shaft and connected to the rear spherical support, as well as a mechanism for changing the angle of inclination of the tool, made in the form of a worm gear drive. The disk axis is at an angle to the axis of the body, determined by mathematical dependence. Before being processed by turning the screw, carried out by the square shank, and the worm gear, the disk is turned through the turn shaft. This changes the angular position of the hollow holder with the tool — the tool is fine tuned to the size of the machining. A rotation is then reported to the shaft, which, through the spherical bearings, is converted into a swinging movement of the tool. The tool, in series with the points of the surface, processes it. 1 hp f-ly, 3 ill.

Description

The invention relates to mechanical engineering, in particular, to surface treatment by means of surface plastic deformation, and is an improvement of the device according to the author. No. 1255406.

The aim of the invention is the expansion of technological capabilities by processing a single size of holes with different tension.

1 shows a device for processing the surface of a part;

figure 2 - section aa in Fig .; Fig. 3 is a diagram of changing the position of the tool axis.

The device consists of a housing 1 in which a hollow holder 2 is mounted with a rolling tool ZONN on the holder 2 fixed in it; a front spherical support is installed, consisting of an internal spherical support element 4 fixed on the floor holder 2 and an external spherical support

hch

the support element 5, mounted on the housing 1 concentric with its axis. At the end of the holder 2 there is a rear spherical support consisting of an internal spherical support element 6 fixed on the hollow holder 2 and an external spherical support element 7 fixed in the opening 8 of the disk 9. The axis of the opening 8 is eccentric to the axis of the disk 9, which is inclined to the axis of the housing 1 at an angle 1b and passes through the swing center U of tool 3.

The disk 9 is mounted on the shaft 10 with the water rotating the rolling tool eccentric to the axis of the shaft. The disk 9 is connected to a rotary shaft 11 on which a worm wheel 12 is installed, kinematically connected with a screw 13. The screw to 13 is mounted in the supports 14 of the rotational drive shaft 10. To turn the screw 13, there are square shanks 15 connected to the screw, and in case 1 windows 16 are made to access square shanks 15. The tilt angle / axis of the disk 9 is determined from the dependence

"Max -

   lchin 2

 min + mx 2

where OSD, mn and

c MoiKC - the minimum and maximum angle of inclination of the tool axis to the body axis, respectively.

When installing, the rolling tool 3 is set to the machining diameter 0 (and, when mounted (4, c to the machining diameter, c (in Fig. 3, the solid line shows the position of the tool and the back support for setting the maximum tool tilt angle, with a dashed line). setting the minimum angle of inclination of the tool axis).

The device works as follows.

Before being processed by turning the worm 13, carried out by the square shank 15, and the worm gear 12, the disk 9 is rotated through the turning shaft 11. In this case, the rear support moves in a circle, changing the angular position of the hollow holder 2 with the tool 3 relative to the swing center 0 .

five

0

five

0 d

0

The tool 3 is fine tuned to the size of the machining. Since the worm pair is a self-braking system, no special lock 9 is required. Then, rotation 10 is imparted to shaft 10 and the rolling tool 3 is guided to the workpiece surface. Include longitudinal feed. The rotation from the drive shaft 10 is transmitted to the spherical elements 6 and 7 of the support, which, as a result of the eccentric installation in the hole 8, imparts movement to the hollow holder 2 along the generatrix of the cone. The hollow holder 2, the movement of which is also provided by the spherical elements 4 and 5 of the support associated with the body 1, imparts a swinging movement to the rolling tool 3, which sequentially contacts the points of the workpiece surface.

I

The use of the invention allows to expand the technological capabilities and improve the accuracy of processing by providing the possibility of adjusting the position of the tool and setting it to size.

Claims (2)

Invention Formula . A device for treating the surface of a part with a rolling deforming tool according to ed. No. 1255406, characterized in that, in order to expand technological capabilities by processing one size of holes with different tensions, the device is provided with a disk mounted on the shaft and a mechanism for changing the angle of inclination of the deforming tool, the rear spherical support mounted on the rotation drive shaft by mentioned disk, and its axis is at an angle to the axis of the body, determined by the dependence "UMMN P - 2 where d missions MMKS and respectively, the minimum and maximum angle of inclination of the tool axis to the body axis. 514950916 2. The device according to claim 1, about tl and - ment is made in the form of associated with the fact that it is equipped with a drive shaft and a worm gear, but an additional drive rotation with the latter set to with a worm shaft, while the mechanism for changing the angle of inclination of tools // /////// M 76 / referred to the shaft and kinematically associated with a worm shaft drive shaft. 5 7 AND  FIG. 1 9 JO 11 -А / J vz FS / G.2 Fig.Z