SU986755A1

SU986755A1 - Method of working with combination tool

Info

Publication number: SU986755A1
Application number: SU813270417A
Authority: SU
Inventors: Павел Сергеевич Чистосердов; Виктор Георгиевич Беляй
Original assignee: Могилевский Машиностроительный Институт
Priority date: 1981-02-17
Filing date: 1981-02-17
Publication date: 1983-01-07

Description

Изобретение относитс к обработке металлов резанием и поверхностным пластическим деформированием и может быть использовано при обработке внутренних и наружных цилиндрических поверхностей , а также плоских линейных н торцовых поверхностей.The invention relates to the processing of metals by cutting and surface plastic deformation and can be used in the treatment of internal and external cylindrical surfaces, as well as flat linear and end surfaces.

По способу обработки различных поверхностей неуравновешенным комбинированным инструментом (т.е. инструментом , у которого усили резани и деформировани в процессе обработки не уравновешиваютс ) обработка осуществл етс следукнцим образом: сначала в работу вступают режущие элементы , а затем деформирующие. В момент вступлени в работу деформирующих элементов значительно возрастают суммарные усили (от сил резани и . деформировани ), действующие на систему СПИД, что приводит к отжиму резцов и образованию на поверхности детали ступеньки.При дальнейшем движении деформирующие элементы набегают на ступеньку, визыва новое увеличение суммарных усилий, действующих на систему СПИД, и образование новых ступеней меньшей высоты. Таким образом , поверхность, обработанна неуравновешенным комбинированным инструментом , представл ет собой р д уменьшающихс ступеней.According to the method of processing various surfaces with an unbalanced combination tool (i.e., a tool whose cutting and deforming forces are not balanced during processing), the processing is carried out as follows: first, cutting elements come into operation and then deforming. At the moment the deforming elements come into operation, the total forces (from cutting and deforming forces) on the AIDS system significantly increase, which leads to the pressing of the incisors and the formation of a step on the workpiece surface. With further movement, the deforming elements run onto the step, yielding a new increase efforts affecting the system of AIDS, and the formation of new steps of lesser height. Thus, a surface treated with an unbalanced combination tool is a series of decreasing steps.

Известен способ обработки, когда усили деформировани взаимно уравновешиваютс и не оказывают вли ни на отжатие режущего элемента Этот способ вл етс наиболее близким по технической сущности.There is a known method of treatment when the deformation forces are mutually balanced and do not affect the release of the cutting element. This method is the closest to the technical essence.

Недостатком способа вл етс то, The disadvantage of the method is that

10 что он приемлем только дл обработки цилиндрических поверхностей и не может быть использован при обработке плоскостей. В инструментах, примен емых дл обработки плоскостей, невоз15 можно уравновесить нормальные составл ющие усилий деформировани , так как все они действуют в одном направлении, вызыва отжатие в системе СПИД, привод щие , к образованию ступеней на 10 that it is only acceptable for machining cylindrical surfaces and cannot be used when machining planes. In the tools used for machining planes, it is impossible to balance the normal components of the deformation efforts, since they all act in the same direction, causing the release of the AIDS system, leading to the formation of steps on the

20 обработанной поверхности.20 surface treated.

Целью изобретени вл етс повышение точности обработки и расширение технологических возможностей способа. Эта цель достигаетс тем, что вThe aim of the invention is to improve the processing accuracy and expand the technological capabilities of the method. This goal is achieved by the fact that

Claims

25 with a combination tool, in which the processes of reversal to surface plastic deformation are carried out simultaneously, the AIDS system is loaded with a force equal to the deformation force before machining by the deforming elements, and the cutting element is set to the specified size of processing. FIG. 1 shows a scheme for implementing the method when machining external and cylindrical surfaces / in FIG. “The same when machining a plane. The treatment according to this method is carried out as follows. When machining naruzk cylindrical surfaces, the workpiece 1 is installed in the centers, and the combined tool 2 in the holder. On the surface 3 of the workpiece 1, a sleeve 4 is installed, having a diameter of less than the nominal diameter of the surface being processed at a height of two times the depth of cut. The cutter 5 is brought under contact with the surface 6 of the sleeve 4, while the deforming element 7 abuts against this surface, loading the AIDS system with an effort equal to the deformation force. During machining, when a part is communicated with a rotary motion, and with the feed motion tool, the cutter processes the surface with a depth of cut io. In this case, the total force acting on the AIDS system will be equal to the sum of the cutting and deforming efforts. After the cutting element is moved by the PO value, a deforming element enters the formation of the microrelief of the finally worked surface, while the total force acting on the AIDS system does not change, which eliminates additional squeezing and the formation of steps on the surface processed by the incisor. The use of the proposed method of treatment provides an expansion of technological capabilities in the processing of both cylindrical (external and internal) - and flat surfaces, as well as increases the accuracy of surface treatment with combined tools of unbalanced action. DETAILED DESCRIPTION OF THE INVENTION A processing method with a combination tool, in which the process of cutting and surface plastic deformation is carried out simultaneously, characterized in that, in order to increase the processing accuracy and expand technological capabilities, the AIDS system, before the deforming tool enters into operation, is loaded with a force equal to the deformation force. . Sources of information taken into account during the examination 1. Chistoserdov PS Combined-g. tools for finishing and hardening processing i Minsk, Belarus, 1977, pp.56-59, 61, fig.23-27.

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