An encoder disassembly tool

Abstract

The invention discloses a coder disassembling tool. The coder dissembling tool comprises a pull supporting structure, wherein the pull supporting structure is formed by combination of a pull claw cylinder and an outer sleeve which is matched with external threads of the pull claw cylinder; the pull claw cylinder is composed of two semicircular cylinders which sleeve on an annular groove of a coder; an auxiliary screw is arranged on one side of the outer sleeve; one end of the auxiliary screw and the outer sleeve interact by rotation of the auxiliary screw; the outer sleeve and the other side of the pull claw cylinder combined part are connected with the annular groove. By adopting a push-pull structure in which a top claw and a rear cover screw cap are simultaneously pushed by an ejector bolt in a multipoint uniform stressing mode, the coder disassembling tool disclosed by the invention can be used for simply and feasibly disassembling a rear cover and can be used as an auxiliary tool for disassembling the rear cover of the coder arranged inside a Siemens servo electromotor. The coder disassembling tool can be used for realizing nondestructive disassembly of an end cover shell of the coder and stably and smoothly disassembling the rear end cover of the internal coder. The coder disassembling tool disclosed by the invention also has a function of press-fitting of the rear cover of the coder and has the advantages of solving the problem of hard disassembly and maintenance of the rear cover of the internal coder of the servo electromotor and providing feasible conditions for repair of the internal coder.

Description

technical field [0001] The invention relates to a special disassembly tool device for fault maintenance of a special type of rotary encoder, in particular to an encoder disassembly tool. Background technique [0002] The built-in encoder of the Siemens servo motor adopts a special rotary encoder made by Heidenhain in Germany. The connection between the encoder body and the back cover is designed as an over-win fit and press-fit seal, and there is no disassembly structure design. For the connection method of the encoder back cover, see the schematic diagram on the attached page. When the encoder breaks down and needs to be opened for inspection and repair, it is very difficult to disassemble the rear end cover. If there is no special tool, the rear cover can only be opened by destroying the structure of the end cover, resulting in a decrease in sealing performance; and the encoder structure is precise, In addition, the engraved glass code disc is fragile, which is very likel...

AI Technical Summary

Problems solved by technology

When the encoder breaks down and needs to be opened for inspection and repair, it is very difficult to disassemble the rear end cover. If there is no special tool, the rear cover can only be opened by destroying the structure of the end cover, resulting in a decrease in sealing performance; and the encoder structure is precise, In addition, the engraved glass code disc is fragile, which is very likely to cause irreversible damage and cause the encoder to be scrapped

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