Single-arm combined boring tool

Abstract

The invention discloses a single-arm combined boring tool, which relates to the improvement on the structure of a boring tool. The invention provides the single-arm combined boring tool which is convenient in detachment, installation and use, simple in structure, wide in machining range. The boring tool comprises a tool holder and has the key structural points that: a supporting rod is arranged ina guide groove at a tool holder end; one end of the supporting rod is a counter weight; the other end of the supporting rod is provided with a sliding cutter bar; and the outer end of the sliding cutter bar is provided with the boring tool.

Description

Technical field: [0001] The present invention relates to the improvement of the boring tool structure. Background technique: [0002] At present, SANDVIK Cormant, the most famous tool manufacturer in the world, produces and processes large-diameter single-arm boring tools Φmax=981.6mm. 4 sets of heavy systems; (if processing to Φ1150mm, you need to add 2 sets) The fine boring unit is composed of a knife card, a fine boring head, and an extended slider, which is troublesome to combine. And only fine boring can be achieved. [0003] The double-edged large-aperture boring tool Φmax=810mm produced by the domestic Chengdu Measuring Tool and Cutting Tool Factory has a simple structure, but the connection with the handle is slightly complicated, and the double-edged structure; virtually increases the manufacturing process and cycle, and the structure is heavy. Φ490-Φ810 need 3 sets of boring tool systems (if machining Φ1150mm, 3 sets are needed). [0004] The common disadvantage...

AI Technical Summary

Problems solved by technology

[0002] At present, SANDVIK Cormant, the most famous tool manufacturer in the world, produces and processes large-diameter single-arm boring tools Φmax=981.6mm. 4 sets of heavy systems; (if processing to Φ1150mm, you need to add 2 sets) The fine boring unit is composed of a knife card, a fine boring head, and an extended slider, which is troublesome to combine. fine boring

[0003] The double-edged large-aperture boring tool Φmax=810mm produced by the domestic Chengdu Measuring Tool and Cutting Tool Factory has a simple structure, but the connection with the handle is slightly complicated, and the double-edged structure; virtually increases the manufacturing process and cycle, and the structure is heavy. Φ490-Φ810 need 3 sets of boring tool system (if machining Φ1150mm, 3 sets are required)

[0004] The common disadvantages of large-aperture boring tools at home and abroad are: the adjustable range is small, and they need to be purchased in groups to cover a wide range of processing, and the boring tools above Φ500 are not in stock and need to be ordered for production; foreign structures are complex, domestic structures are heavy, and manufacturing costs High, inconvenient to adjust and long lead time (45 days); at least 6 sets of tools are required from Φ550-Φ1200

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