High-precision slight-adjustment fine boring tool

Abstract

The invention discloses a high-precision slight-adjustment fine boring tool. The high-precision slight-adjustment fine boring tool comprises a tool bar and a blade seat; the tool bar is provided with an installation part, and a slight-adjustment bolt hole and a fastening bolt hole are formed in the installation part; the blade seat is installed on the installation part through a pin in a connected mode, and provided with a lock hole; a lock bolt is arranged in the lock hole and screwed into the fastening bolt hole so that the blade seat can be fastened and locked onto the installation part; a slight-adjustment bolt is arranged in the slight-adjustment bolt hole and provided with a slight-adjustment conical face; the blade seat is provided with a slight-adjustment pressure bearing inclined plane, and the slight-adjustment pressure bearing inclined plane is matched with the slight-adjustment conical face, so that slight-adjustment operation is achieved; and a pressure bearing spring is arranged between the blade seat and the installation part. According to the high-precision slight-adjustment fine boring tool provided by the invention, the effect that the slight-adjustment structure can be freely adjusted can be ensured, meanwhile, the adjustment hand feeling and other aspects are good, and adjustment is not influenced.

Description

technical field [0001] The invention relates to the field of machining tools, in particular to a high-precision fine-tuning fine boring tool. Background technique [0002] Boring tool is a kind of hole processing tool, generally with round handle, and there are also larger workpieces with square tool holders, which are generally found in vertical lathes. The most commonly used occasions are inner hole processing, hole reaming, profiling, etc. But not only the inner hole can be processed, the outer circle of the end face can also be processed, but it is not used in this way. [0003] In order to meet the needs of various hole diameters and hole depths and reduce the variety and specifications of boring tools, people design boring bars and cutter heads into serialized basic parts-modules. When in use, appropriate modules can be selected according to the requirements of the workpiece to assemble various boring tools, thus simplifying the design and manufacture of tools. [00...

AI Technical Summary

Problems solved by technology

Large-scale adjustment has a wide range, but the purchase price is also high, which leads to expensive processing costs for special knives in special industries, which is not conducive to cost saving

Small-scale adjustable fine boring tools basically use the tool holder as an independent fine-tuning unit, which is fixed on the tool bar with only one screw, which is extremely unstable in use and prone to tool vibration

Vibration of the knife will cause irregular machining marks on the workpiece machining surface, and will seriously affect the machining accuracy

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