SU1286395A1 - Method of dimensionally-combined spinning - Google Patents

Abstract

The invention relates to the field of metal cutting and surface plastic deformation and can be used for finishing parts on machines with an automatic adjustment system. It allows to increase the accuracy and quality characteristics of the treated surfaces. For this purpose, the tool removes the installed machining allowance, simultaneously performs plastic deformation of the surface with a rigidly mounted deforming tool and acts with an additional cutting tool on the wave of the deformed metal within its height. The first to enter the work is the cutting element, removing the stock from the part, then the deforming element. The deformed metal in the form of a wave rushes to an additional cutting element, which performs the cutting of the deformation wave. 1 il. with $ W

Description

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The invention relates to the processing of metal parts by cutting and surface erase deformation and can be used for the finishing treatment of machine parts on machines with siege automatic adjustment.

The purpose of the invention is to improve the quality of processing by stabilizing the size of the dynamic adjustment of the forming element. ABOUT

The drawing shows the scheme of reaizatsii the proposed method.

Item 1 is installed in the chuck of the machine, and a combined tool, comprising a housing 2, a cutting tool. Ment 3, deforming tool 4, additional cutting tool 5 - in the tool cutter holder. The deforming tool 4 is installed in the bearing 6, and the end of the deforming tool -20 of the instrument 4 rests on the ball 7. The bearing 6 and the ball 7 are installed in the respective cavities of the housing. An additional cutting tool 5 is installed in the groove 8 of the housing 2 with a possibility of radial movement, and its end face 9 interacts with the surface of the eccentric handwheel 10. The supports 11 of the eccentric handwheel 10 with eccentricity e are set in -30 in the body 2 with the possibility of rotation. In order to rotate the eccentric handwheel 10, a pair of screwworm 12 is provided in the tool. The butt 9 of the additional cutting tool 5 35 is pressed against the surface of the eccentric handwheel 10 by a flat spring 13 fixed to the body 2 of the combined tool.

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Parts 1 report the rotation, and the case 2 of the combined tool is moved along the pattern E1; the surface of the part 1 is being processed by it 1. The cutting tool 45 3 comes first, removed from part 1 installed:.; allowance for processing depth t. Then a deforming tool 4 enters the work, having carried out finally dimensional accuracy of processing and 50 to form a hardened surface microrelief. The fermented metal in the form of a warping wave 14 rushes from the part towards the installed additional cutting tool 5. The latter, with ZCC, performs the cropping of the warping wave. 14. Depending on the physical and mechanical properties of the processed

of the part material (they are variable in length. processing) and the size of the allowance falling under the deforming 1st tool, and also due to the flexibility of the AIDS system (the ability to change the distance between the top of the deforming tool and the base surface of the part) 15 of the part 1 and the top of the deforming tool 4. To stabilize size A, inductive sensors D and D measure the deviation of the relative position of the base surface 15 of the body part 2 of the combined tool . The measured deviation (displacement) converted into electrical signals U) and Uj enters the comparison device 16, the sum of the signals U (and is compared to the magnitude of the signal U received from the driver 17. The error signal U4 is then amplified by the amplifying device 18 and supplied to the actuator 19, which, according to the sign of the error signal U4, rotates the eccentric handwheel 10 through the worm gear 12, the eccentricity e of the handwheel 10 is equal to the height of the deformed metal wave h. The surface of the eccentric handwheel 10 acts on the end 9 of the additional cutting tool 5, as a result of which the depth of cut (the amount of deformation wave undercut) of the additional cutting tool 5 changes, providing the required allowance according to the mismatch sign U4 that falls under the deforming tool 4. When the mismatch sign is reached U of the permissible value of the actuator 19 stops the rotation of the eccentric handwheel 10.

As an example of a specific embodiment, one can cite the workpiece face on an IK625 machine.

The material of the workpiece - steel 45 GOST 1050-74 (HB-208) / machining diameter 300 mm, material cutting tools T14K6, the radius of curvature of the deforming tool is 8 mm, the material of the deforming tool ShH 15 (HR С 60), the initial accuracy of the parts is 10 square meters. ST. SEV. 144-75.

Claims (1)

Invention Formula A size-matched rolling process in which a part is machined by a main cutting tool with plastic deformation with a rigidly installed deforming element and cutting of a metal wave formed during plastic deformation with an additional cutting tool, characterized in that machining by stabilizing the size of the dynamic setting of the deforming element, during processing, the cutting depth of the additional cutting tool is varied within the wave height of the deformed metal.