SU1360905A1 - Arrangement for machining spherical stepped surfaces - Google Patents

Abstract

This invention relates to a machine tool industry and can be used in machining spherical stepped surfaces, such as connecting rods. The aim of the invention is to expand the technological capabilities of the device by ensuring the processing of spherical stepped surfaces, through the use of a copying system. Yu (L CO Gf5 Oh; oh oh el

Description

allowing automatic adjustment of the cutter. The device consists of a housing 1, on the trunnions 2 of which is placed pivotally by means of a drive 7, a cradle 3 with a tool holder A and a cutter 5. In the cradle 3 there is a slider 10, in the groove of which the first lever 12 is mounted, fixed on the axis, on which the second a lever 14 with a roller 15 having the ability to interact with the cam 16, fixed coaxially with the pins 2. During processing by the drive 7

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This invention relates to a machine tool industry and can be used in machining spherical stepped surfaces, such as connecting rods.

The aim of the invention is to expand the technological capabilities of the device by providing the processing of spherical stepped surfaces by using a copier system, which allows automatic adjustment of the tool.

FIG. 1 depicts a front view, device, front view; figure 2 - section aa in figure 1.

The device consists of a base 1. mounted on a machine bed. On the base, on pins 2, there is a rotary body 3 with guides for the tool holder 4 with the cutter 5. The body 3 is connected to the rotation drive by means of the axis 6 - the hydraulic cylinder 7 swinging on the axis 8. The tool holder 4 is connected through the set screw 9 slider 10 correction mechanism.

mounted in the housing basement but.

In the slider 10, a groove 11 is made, mating with a head of a lever 12 fixed on axis 13. A second lever 14 is fixed to a roller 15 at the second end of the axis, which has a possibility of contact with the master copy 16 by means of a power closing element - a spring 17. The copier 16 is rigidly fixed on the body .1 coaxially with the trunnions 2. The arms of the levers 12 and 14 are different, and the shoulders of the lever 14 are larger than the lever arm

the cradle 3 is associated with a rotational movement relative to the axis of the trunnions 2, with which the center of the spherical surface being machined is aligned, during the rotation process of the cradle 3 roller. 15 interacts with the surface of the copier 16. When entering the recess of the copier of the roller 15, the lever 1A rotates, thereby moving the axes and the lever 12. When the lever 12 is rotated, the slider 10 moves and the cutter 5 penetrates into the body of the workpiece to a predetermined depth, thereby forming sphere level. 2 Il.

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12, whereby the profile of the master copier is made on a larger scale than the one being processed. This contributes to the improvement of the machining accuracy, since the errors in the performance of the copier profile are transmitted to the surface to be treated, based on the ratio: many times smaller than the lever arm with rollers more than the lever arm associated with the slide. The slider 10 of the housing 3 has the ability to contact with the wall 18 of the housing through the pin 19, with the compressed spring 17.

A device for mounting and securing the workpiece provides for the combination of its pole of the spheres and the axles of the pins (the elements of the tool are not shown conventionally).

The device works as follows.

The workpiece is installed in the initial position of the body. The workpiece is reported to rotate and, through the hydraulic cylinder 7, rotate the housing 3, thereby jointly moving the feed to the cutter 5. In the initial period, the pin 19 moves away from the wall 18 of the housing, the supper 17 through the slider 10, the lever 12 and the axis 13 presses the roller 15 to the driver copier 16. The cutter is set to the specified size and upon further movement - turning of the spherical surface. A given profile is obtained by correcting the radial movements of the cutter with a copier.

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at the end of processing, the movement of the hydraulic cylinder rod is reversed. In this case, the housing returns to its original position. The cycle is repeated.

To obtain the final size, it is possible to manually adjust the cutter on the Vernier.

Claims (1)

Invention Formula A device for processing spherical stepped surfaces, containing a base, on the pins of which is rotatably mounted 609054 a housing with a cutting tool and a mechanism for adjusting it, characterized in that, in order to expand the technological capabilities, the device is equipped with a slider and a copy mechanism, the slider being mounted in the housing for movement, and the copier of the copier mechanism fixed on the base coaxially with the trunnions The copier mechanism contains two levers fixed on an axis placed on the body so that it can be rotated, and one of the 15 levers has the ability to interact with the cam and the other with the slider. 7/12 Compiled by A. Kornilov Editor G. Gerber Tehred M. Khodanich Proofreader M. Pojo Order 6181/16 Circulation 970. Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4