SU1450987A1 - Device for cold-work hardening - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used for the treatment of flat and conical surfaces with a hardening process. The goal is to expand the technological capabilities of the device. To do this, a cup and a mechanism for moving the guide bush are inserted into the device. On the glass are made cloves. The stop is movable and spring-loaded in the axial direction. The mechanism of elastic movement of the glass has a cam mounted on the axis, a ratchet with a dog and a pinion. The pitch of the teeth of the pinion is less than the pitch of the teeth on the glass and is equal to the pitch of the teeth of the ratchet. This allows the treatment of surfaces with a double-sided taper. 1 hp f-ly, 3 ill.

Description

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The invention relates to the cold treatment of metals and alloys by surface plastic deformation, can be used in the finishing treatment of various types of surfaces for hardening their surface layer. The aim of the invention is the expansion of technological capabilities for increasing the range of treated surfaces.

FIG. 1 shows the proposed device, obsh, i view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2

The device consists of a cage 1, to which a separator 2 is attached. Deforming elements 3 are located in directional bushings 4. The stops 5 are spring-loaded 1 and are installed with the possibility r, to: displacement in additional bushings 6, | Both bushings 4 and 6 11 spen: inen with 1 tarirovanny springs, respectively | 7, 8 and 9, 10. Spring 11 serves to push the guide sleeve 4 to the center of the casing 1. In the sleeve 6 on the axis 2 there is a mechanism for moving the sleeve 4 relative to the sleeve 6 and clips 1, which consist of rigidly connected to each other and with the axis of 12 gears and 13, the cam 14 and the ratchet 15 with the pawl 16 pivotally mounted on the hub 6. On the hub 6, there are teeth that engage with the toothed bar 17. The gear 13 is meshed with the teeth 5. The stop 5 is made in the form; the cup and has the ability to move I on the finger 18, in which a groove 19 with a grub screw 20 is placed therein, which serves to prevent the stop 5. from rotating. The pitch of the teeth of the pinion 13 is chosen smaller than the pitch of the teeth on the sleeve 6 and the toothed bar 17, for example 2 times and equal to the ratchet pitch 15.

The device works as follows. The yoke 1 with the separator 2 is rotated, and the tool is brought to the part by the amount of tension required. The deforming elements 3 under the action of centrifugal force hit the surface of the part. After striking, the deforming elements 3 reciprocate in the sleeve 4 from the tool periphery to the stop 5, and the cycle repeats. If during processing an increase in the tension value occurs (a decrease in the distance between the periphery of the casing 1 and the part), the impact force of the deforming element 3 acting on the stop 5 increases proportionally, which under the action of the increasing impact force and the force of the calibrated spring 7 shifts towards the center clips 1. In this case, under the influence of the spring 9, the sleeve 6 also shifts to the center of the shroud 1 by a step size of one

the teeth of the bar 17. At the same time, the stop 5 rotates the gear 13 with its teeth 14 by the teeth of the gear teeth 13, while the cam 14 moves

guide sleeve 4 away from the center of the yoke 1 towards the workpiece. Dog 16 when this, interacting with the ratchet 15, prevents reverse rotation of the pinion 13, since the pitch of the teeth on the additional sleeve 6 more

than the pitch of the gear teeth 13, then by summing the magnitudes of the movements of the additional sleeve 6 to the center of the sleeve 1 and the guide sleeve 4 from the center of the sleeve 1, the resultant movement of the sleeve 4 to the center of the sleeve 1 by an amount that ensures even tension of the element 3 is provided After the calibrated spring 10 is fully compressed, the sleeve 6 does not move towards the center of the sleeve 1. Further

0, when the tilt of the surface of the machining piece is reversed to the opposite, the deforming elements 3 continue to strike the stop 5, causing further rotation of the pinion 13 and cam 14, which continues to gradually extend the guide sleeve 4, from sleeve 6 from the center of the yoke 1 In this way, the surface is treated with a reverse slope.

The application of the invention allows to increase the range of surfaces to be processed without readjusting the device, which leads to the expansion of technological capabilities.

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Formula and: G Preteni

Claims (2)

1. A device for luiiciena containing a separator, a holder in which a spring-loaded guide sleeve with a deforming element is located at an angle, a tooth of the chat bar mounted in the holder with the possibility of rotation, and placed with the possibility of movement and interaction with the guide sleeve emphasis, characterized in that, in order to expand g technological capabilities by increasing the range of surfaces to be processed, it is equipped with a concentric guide sleeve and a cup with teeth covering it on the outer cylindrical surface and a spring, moreover 0 the cup is placed with the possibility of elastic movement and engagement with the toothed bar, wherein the cup spring is located between the separator and the cup end, and the stop is placed between the guide sleeve and the bottom of the cup and is connected 5 with the last. 2. The device according to claim 1, characterized in that the mechanism of elastic movement of the cup is designed as installed on the axis a camshaft, a ratchet with a pawl, and gears; in this case, a tooth is made on the support to interact with said gear. moreover, the pitch of the teeth of the latter is less than the pitch of the teeth on the glass and is equal to the pitch of the teeth of the ratchet. Phie. one . 2 /four /five fig.Z