SU1248730A1 - Arrangement for machining grooves - Google Patents

Description

one

This invention relates to a machine tool industry and can be used in the processing of lubrication grooves in bushings.

The purpose of the invention is to reduce the wear of the cutting tool by eliminating its contact with the workpiece surface during the return stroke.

FIG. 1 shows the proposed device in the initial position, general view, section; in fig. 2 - the same in the final operating position; in fig. 3 shows section A-A in FIG. 2; in fig. 4 shows a section BB in FIG. 2

Device For grooving, it contains a holder 1 with a cutting tool 2, which is pressed by springs 3 to a copier 4 mounted for axial movement in the holder 1 and pressed by spring 5. In housing 6, a groove Q is installed for mounting the workpiece 7. Stand 8 with an anchor 9 fixed inside it is placed on the housing 6. To adjust the position of the copier 4 relative to the machined grooves of the part 7, an adjustable stop 10 is placed in the housing 6, and for fixing the copier 4 in the final working position of the cutting tool on the holder 1, a bracket 11 with a spring 12 and a latch 13 is installed. A shock absorber i 4 serves to soften the impact of the copier 4 when it is axially moved under the action of the spring 5.

487302

The groove processing device operates as follows. .

The workpiece 7 is installed in the groove A of the housing 6. The holder 1 with the cutting tool 2 and the copier 4, falling down, enter the hole of the part 7. Their joint movement occurs until the lower end of the copier 4 stops 10 seconds. adjustable stop 10. The further movement is carried out only by the holder 1 with the cutter M tool 2, which, slides on the surface of the copier, moves out of the holder 1 and

15 cuts the part 7 to a predetermined depth, forming a direct lubrication groove in one stroke.

I

After grooving, cutting

20, the tool 2 is pushed by the springs 3 into the holder 1 and out of contact with the part 7, and the latch 13 under the action of the spring 12 sinks into the recess of the copier 4, fixing it in this

25 position.

During the return stroke, the joint movement of the holder 1 with the tool 2 and with the fixed copier 4 occurs until the clamp 11, touching the stop 9, depresses the latch 13 from the copier 4. The latter, under the action of the spring 5, goes down and the cutting tool takes the initial position This ends the processing cycle.

ft.2

5-6

FIG.

Editor O. Bugir

Order 4166/10 Circulation 1001 Subscription

BNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

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Production and printing company, Uzhgorod, st. Project, 4

fig a

Compiled by Yu. Yudin

Tehred I. Gaidoga Corrector O. Lugova

Claims (1)

A device for processing grooves, comprising a holder in which a spring-loaded cutting tool is mounted with the ability to move in a radial direction from the copier, while the copier and tool holder are mounted with relative axial movement, characterized in that, in order to reduce tool wear by eliminating its contact with the workpiece during the reverse stroke, it is equipped with a mechanism for fixing the copier in the final working position of the cutting tool, made in the form of a spring-loaded Koba with a retainer mounted on the tool holder with radially movable relative to the latter. . figure 1