Boring, scraping and rolling integrated compound cutter with adjustable axial distance

Abstract

The invention discloses a boring, scraping and rolling integrated compound cutter with an adjustable axial distance. The compound cutter comprises a rolling head component, wherein the rolling head component comprises a retaining sleeve base, a retaining sleeve and a core; the retaining sleeve is fixedly connected with the front end of the retaining sleeve base; the core is embedded into an inner cavity of the retaining sleeve in a matched mode; a connection component comprises a mandrel; a first oil cylinder is embedded into a front hole of the retaining sleeve base in a matched mode; an inner ring of the first oil cylinder is matched with the outer ring surface on the middle section part of the mandrel, and the first oil cylinder controls the retaining sleeve base to slide forwards; a travel mandril is arranged in the mandrel; and a first spring is sleeved outside the rear end of the travel mandril in a matched mode, and controls sliding retaining sleeve base to reset. The compound cutter is integrated with boring, scraping and rolling, so that the operation efficiency is improved; an inclined conical ring surface structure is adopted, and a rolling needle is driven to move axially, so that the height of the rolling needle is adjustable; the spring is arranged under a scraper supporting block, so that a floating running mode is formed; the compound cutter has a rational structure, so that relatively high roundness and straightness can be guaranteed during scraping motion; the compound cutter can automatically stretch when moving back, so that the surface of a workpiece cannot be damaged.

Description

technical field [0001] The invention relates to the technical field of machining cutting tools, in particular to an integral composite tool integrating boring, scraping and rolling and with adjustable axial distance. Background technique [0002] With the development of social technology, further improvement of production capacity has become the focus of everyone's consideration. Especially in the field of metal cutting, the efficiency of metal processing is high, and the surface quality of the processing is also required to be high, so general cutting tools do not have the above-mentioned Two effects, such as boring cutter, rolling cutter and the like, have a single structure and low work efficiency. [0003] In the prior art, there are also boring-rolling composite cutters, such as the Chinese invention patent "A Boring and Rolling Composite Tool" (notification number CN201201056Y) whose patent number is CN200820022207.9; The adjustable cutter body that can retract and ex...

AI Technical Summary

Problems solved by technology

Although this design has two kinds of cutting tools in one, if the machining allowance is large, the two processes cannot ensure high-precision machining of surface quality; the roller is installed in a fixed way, and it is easy to dislodge the original processed hole when the tool is retracted. surface damage

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