Cylindrical deep hole boring device with auxiliary supporting

A technology of cylindrical deep hole boring and auxiliary support, which is applied in the direction of boring bar, boring head, boring/drilling, etc. It is difficult to observe the cutting condition, avoid scratching the surface, and improve the effect of machining accuracy

Active Publication Date: 2012-10-10
ZHONGBEI UNIV
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  • Abstract
  • Description
  • Claims
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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 , resul

Method used

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  • Cylindrical deep hole boring device with auxiliary supporting
  • Cylindrical deep hole boring device with auxiliary supporting
  • Cylindrical deep hole boring device with auxiliary supporting

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Embodiment Construction

[0025] The present invention comprises dozens of parts such as boring bar 5, boring tool 7, double cone core rod 6, cylindrical core rod 17, screw spline core rod 16.

[0026] A three-jaw chuck 3 is installed on the spindle box 4 to clamp the workpiece 2 with a cylindrical deep hole, and the center frame 18 supports the other end of the workpiece.

[0027] One end of the boring bar 5 is fixedly connected with the slide plate 15, and the boring bar 5 is fed axially as the slide plate 15 moves along the bed guide rail.

[0028] A boring tool 7 that can move relative to the boring bar is installed in the horizontal hole of the boring bar 5, and a double-taper core rod 6, a cylindrical core rod 17, and a threaded spline core rod 16 are placed in the axial hole in the center of the boring bar. , screw sleeve 8, spring 11, floating support are installed on the boring bar. The invention sets floating supports as auxiliary supports, which can increase the rigidity of the boring bar, ...

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Abstract

The invention relates to a cylindrical hole processing device, in particular to a cylindrical deep hole boring device with auxiliary supporting, which solves the problem that in the machining process of the current cylindrical hole processing device, a cutter can scratch the machined surface during returning, a boring rod is seriously deformed when a hole is deeper, and the shape and position errors of the bored hole is large. The cylindrical deep hole boring device comprises the boring rod and a boring cutter, wherein holes are formed in the axial center and the radial direction of the boring rod, and the boring cutter is installed in the radial hole of the boring rod; a double-cone core rod is arranged in the axial hole of the boring rod; two cone bodies are arranged at the front end of the double-cone core rod, and the tapers of the two cones of the two cone bodies are equal; a floating gripper is also installed on the boring rod; and a tapered hole is formed in the boring cutter, and the axis direction of the tapered hole is parallel to that of the boring rod. The cylindrical deep hole boring device has the beneficial effects that when the cutter returns, the cutter leaves the machined surface to avoid to scratch the surface; the quality requirement of the workpiece roughness is met; the shape and position errors of the bored hole is small; and the boring rod 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...

Claims

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Application Information

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IPC IPC(8): B23B41/02B23B29/02B23B29/034B23B29/14
Inventor 沈兴全于大国庞俊忠李艳兰黄晓斌
Owner ZHONGBEI UNIV
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