A Cylindrical Deep Hole Boring Device with Auxiliary Support

Abstract

The invention relates to a device for processing cylindrical holes, in particular to a cylindrical deep hole boring device with auxiliary support, which solves the problem that the existing cylindrical hole processing device will scratch the machined surface when the tool returns during the processing process, and when the When the hole is deep, the deformation of the boring bar is large, and the shape and position error of the bored hole is large. It includes a boring bar and a boring tool. Both the axial center and the radial direction of the boring bar are opened. The boring tool is installed in the radial hole of the boring bar. A double-cone core rod is arranged in the axial hole of the boring bar. The front end of the mandrel is provided with two conical surfaces, and the taper of the two conical surfaces is equal. A floating support is also installed on the boring bar. There is a taper hole on the boring bar. The axis direction of the taper hole is parallel to the axis direction of the boring bar. The invention has beneficial effects: when the tool is retracted, the tool is separated from the machined surface, avoiding scratching the surface, meeting the roughness quality requirements of the workpiece, the shape and position error of the bored hole is small, and the boring bar is not easily deformed.

Description

technical field [0001] The invention relates to a device for machining cylindrical holes, in particular to a cylindrical deep hole boring device with auxiliary support. Background technique [0002] There are mature technologies for boring cylindrical shallow holes. There are usually two methods for boring cylindrical deep holes: using fixed-size tools and not using fixed-size tools. Both methods have technical problems that need to be solved: first, using a fixed-size tool, the disadvantage is that when the tool is returned, the processed surface will sometimes be damaged, such as scratches, leaving scratches on the processed surface , resulting in unqualified surface roughness. Second, if you do not use a fixed-size tool, you can bore the hole, but when the hole is deep, the size of the boring bar is large, the overhang is large, the boring bar is easily deformed, and the processing quality is affected. Contents of the invention [0003] The invention intends to provid...

AI Technical Summary

Problems solved by technology

Both methods have technical problems that need to be solved: first, using a fixed-size tool, the disadvantage is that when the tool is returned, the processed surface will sometimes be damaged, such as scratches, leaving scratches on the processed surface , resulting in unqualified surface roughness

Second, if you do not use a fixed-size tool, you can bore the hole, but when the hole is deep, the size of the boring bar is large, the overhang is large, the boring bar is easy to deform, and the processing quality is affected

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