SU908576A1 - Tool for finishing cylinder surfaces - Google Patents

Description

(54) TOOL FOR FINISHING TREATMENT CYLINDRICAL SURFACES

one

The invention relates to the construction of tools used for populating, refining and hacking cylindrical and conical inner and outer surfaces and can be used primarily in aircraft and rocket production to produce highly accurate cylindrical and conical surfaces.

A known tool for finishing machining of cylindrical surfaces, comprising magnetic bars fixed in the housing of a non-magnetic material with the possibility of radial movement, and rigidly fixed stationary magnets, the poles of which are oriented opposite to the poles of the same bars 1.

However, the tool does not allow to obtain the required uniform, constant in magnitude force of pressing the tool to the surface to be machined.

The purpose of the invention is to expand the technological capabilities of the tool.

The goal is achieved by the fact that the lap bars are installed on the periphery

the housing alternately with fixed magnets and are displaced in the feed direction relative to the specified sub-masts.

In addition, for the purpose of machining holes, it is made in the form of a rod, along the perimeter of which fixed magnets and lap bars are installed. And in order to process the outer surfaces, the casing is made in the form of a sleeve, on the inner surface of which the specified magnets and lap bars are mounted.

FIG. 1 shows a tool for finishing internal surfaces, a longitudinal section; in fig. 2 is a tool for finishing external surfaces, a longitudinal section in FIG. 3 is a section A-A in FIG. one; in fig. 4 shows a section BB in FIG. 2

The tool includes a housing 1 of a non-magnetic material, on the surface of which fixed magnets 2 are fixed.

Claims (3)

In the grooves formed by stationary magnets 2, magnetic bars 39 Lapping 3 are installed with the possibility of radial movement. In this case, bars-lapis 3 are installed — along the periphery of the housing alternately with stationary magnets 2 and displaced in the feed direction relative to the indicated stationary magnets 2. magnetic material, and abrasive material is applied on their surface. If necessary, scab perimeters can be made of a magnetic material suitable for caricaturing with a paste or free abrasive. In a non-boosted state, the lap bars from falling out of the grooves are held by the latch 4. The body 1 of the surface finishing tool is made in the form of a rod, the stationary magnets 2 and the bar-type 3 are mounted on its outer surface, and the latch 4 is made in the form. The body 1 of the tool for finishing the outer surfaces is made in the form of a sleeve, the stationary magnets 2 and the lap bars 3 are installed on its inner surface, and the latch 4 is made in the form of a plug. The tool works as follows. The tool is connected to a boring machine and brought into contact with the surface to be treated. When machining the internal surfaces, the tool is inserted into the machined hole by more than half the length of the bars 3 and the ring 4 is removed, after which the tool is inserted to the required depth. When machining the external surfaces, the tool is worn on the workpiece and the plug 4 is removed. After the tool is installed, it is reported to the working movement and surface treatment is performed. In this, the lap bars 3 are pressed against the surface to be machined under the action of ejection forces that occur between the poles of the fixed magnets 2 and the lap bars 3 that are always aligned in the direction of the surface being machined, since the equal magnetic forces of the poles of the lap bars are located closer to the surface to be machined. surfaces than the resultant magnetic forces of the poles of fixed magnets, and since the resultant like poles are located at different levels and the fixed magnets are closed slivers on the casing, the interaction force between like poles tend to push-bars laps of the slots in the side surface being treated. The use of a tool for finishing surfaces ensures the processing of a number of sizes of internal and external surfaces, differing in diameter up to 5 mm, with a constant clamping force on the treated surface. Claim 1. Instruction for finishing machining of cylindrical surfaces, containing magnetic bars installed in the housing of a non-magnetic material with the possibility of radial movement and fixed fixed magnetic magnets, the poles of which are mounted opposite to the poles of the same grinding bars, which are the purpose of expanding technological capabilities, lap bars are mounted on the periphery of the housing alternately with fixed magneti si and shifted in the feed directional direction relative to, than those indicated in the fixed magnets. 2. A tool according to claim 1, characterized in that, for the purpose of machining the holes, the body is made in the form of a rod, along the perimeter of which fixed magnets and lap bars are installed. 3. The tool according to claim 1, characterized in that, for the purpose of machining the external surfaces, the housing is made in the form of a sleeve, on the inner surface of which there are fixed magnets and ground bars. Sources of information taken into account with experts 1. Copyright testimony of the USSR N 550275, cl. B 24 B 33/02, 1975. AND ig.2