SU1586897A1 - Tool for forming microrelief - Google Patents

Abstract

The invention relates to the treatment of surface plastic deformation, in particular, to a tool for the formation of microrelief on the surfaces of machines. The purpose of the invention is to expand the technological capabilities of the tool. Plates in the form of polygonal prisms have an irregular shape, a different number of side faces and a variable thickness of plates at adjacent vertices. They are fixed to the mandrel with rings and nuts. The mandrel rotates. The detail forms discrete microprints having a rectangular hexagonal, teardrop-shaped or round shape. 2 hp f-ly, 4 ill.

Description

The invention relates to metalworking and can be used in various fields of mechanical engineering to form a microrelief on the surface of parts of mechanisms and machines filled with lubricant and promoting its uniform distribution in order to increase the operational durability of these parts.

The aim of the invention is the expansion of technological capabilities.

FIG. 1 shows the proposed tool; in fig. 2 - the same, cross section; in fig. 3 - deforming element; in fig. 4 - prints, top view and cross-sections.

The tool (Fig. 1) comprises a housing with a mandrel 1, rings 2. plates 3, pin 4, round nuts 5 and an axis 6. Spacers 7 are installed between the plates to adjust the axial pitch of the applied microrelief. To fix the plates 3 in the tool; with the help of pin 4, holes 8 or slots 9 are provided (FIG. 2). Plates 3 are irregular polygonal prisms inscribed in a circle of one radius, or polygonal prisms with a variable number of side faces having different plate thickness at adjacent peaks (Fig. 3); The set of plates 3 is fixed on the mandrel 1 by means of rings 2 and nuts 5. The mandrel 1 is mounted on axis 6.

The tool works as follows.

A mandrel 1 with a set of plates 3 and an axis 6 is mounted on a spring-loaded holder, which is mounted in the tool holder of a lathe when machining surfaces of rotating bodies or in a tool holder of a planer or spindle milling machine in machining flat surfaces. After spinning the part due to the tension, the mandrel 1 begins to rotate with the deformers mounted on it

cl

SP 00 0s

with y

V4

elements. The tool is informed of the feed movement along the part axis and discrete microprints are formed on the surface of the latter. Depending on the filling of the side faces of the plates 3, the prints may have a rectangular, hexagonal, tetragonal, teardrop-shaped or circular shape (Fig. 4).

Since the plates are made in the form of irregular polygonal prisms, and also have variable number of side faces and thickness at the plate tops, the microprints on the surface of the part have variable circumferential pitch to, axial pinch toe, length I, width of the imprint b and angles a, "1 in cross section (figure 4).

Cylindrical, flat and intermittent surfaces can be machined with the tool.

Thus, the proposed tool allows, in comparison with the known one, to obtain on the parts surfaces a partially regular microrelief, which provides

Claims (3)

1. A tool for forming a microrelief, comprising a body, a mandrel with deforming elements fixed on it, made in the form of polygonal prisms inscribed in a circle of one radius, the lateral faces of the deforming elements being displaced one relative to another, characterized in that expansion of technological capabilities due to obtaining a partially regular microrelief, deforming elements made in the form of irregular polygonal prisms. 2. The tool according to claim 1, O J l and h a y y and y, so that the polygonal prisms of irregular shape are made with variables the number of side faces. 3. The tool of claim 1, of which is the adjacent polygonal prisms of varying thickness. t7 l -4 / G-9 2 L  P-x1 / U Fi.Z g / g