RU1812014C - Cathode-tool - Google Patents

Abstract

Usage: electrochemical cleaning, lapping and shaping of the surfaces of annular bores in the holes, deburring at the intersection of the holes with the surfaces of the bores and annular undercuts. SUMMARY OF THE INVENTION: the cathode-tool comprises a holder and elements fixed thereon, made in the form of ring parts and intended to form a cylindrical working tiosepxHocTH cathode. The ring is formed of three parts formed by the connector lines, one of which is located radially, and the other two are parallel and symmetrical with respect to the first. The ring b is assembled on a mandrel directly in the hole of the part. During assembly, a portion of the ring bounded by symmetrical parallel lines is inserted into the hole of the part of the latter and shifted in the radial direction. It is possible to insert the cathode into the bore of the part with minimal initial clearances and improve surface quality by 20%. 2 ill.

Description

The invention relates to electrophysical and electrochemical processing methods and can be used in all sectors of the national economy for the electrochemical cleaning, lapping and shaping of surfaces of annular bores in holes, as well as for deburring at the intersection of holes with the surfaces of bores and annular undercuts.

The aim of the invention is to improve the quality of processing by installing a cathode-tool with minimal initial gaps directly in the bore.

Figure 1 shows the cathode-tool installed in the bore of the part; figure 2 is a section aa in figure 1.

The cathode-tool consists of three parts 1-3, fixed with tightening bolts 4 on a holder 5 mounted in an insulator

6. on which the workpiece is worn

7. Parts 1-3 are intended to form the cylindrical working surface of the cathode, and parts 1 and 2 are symmetrical with respect to each other and adjoin one another on a radially split line. The other two lines of the cathode-tool connector are parallel and symmetrical with respect to the first and form part 3. Owing to this design, it is possible to insert the cathode-tool into the bore with minimal initial clearances and improve surface quality by 20.%,

Yu Oh

The maximum size of parts 1-3 is chosen based on the minimum (in diameter) gap, as well as the possibility of their installation in the bore through a smaller main hole of the part than the bore.

The assembly and operation of the cathode tool is carried out as follows.

Part 7 is installed in the fixture on the machine table on the isolator B with the holder 5. Parts 1.2 of the cathode-tool are mounted on the holder 5, fixed with tightening bolts 4 and joined together through a radial connector. After that, part 3 of the tool cathode is installed through the main hole of the component in the radial direction until a complete kolyov tool cathode is formed and secured with tightening bolts.

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Claims (1)

The claims A cathode-tool for electrochemical processing of annular bores in holes, including deburring them, containing a holder and associated elements made in the form of ring parts and intended to form a cylindrical working surface of the cathode, characterized in that, for the purpose of improving the quality of processing due to the installation of the cathode-tool with minimum and minimum clearance directly into the bore, the working surface of the cathode is made of three parts formed by connector lines, one of which located radially, and the other two parallel and symmetrical with respect to the first. FIG. 2