Machining method of ultra-slender shaft

A processing method and technology for slender shafts, applied in the field of mechanical processing, can solve the problems of easy generation of waste, difficult processing, and inability to complete processing, and achieve the effects of ensuring dimensional accuracy, simple processing process, and simple and easy-to-learn methods.

Inactive Publication Date: 2015-01-28
SHAANXI QIYUAN TECH DEV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] Turning slender shafts is a relatively difficult technical task, especially for turning ultra-slender shafts. If the traditional clamping method of one clamp and one top is adopted, that is, a three-jaw chuck is used for clamping on one side, and the other end is clamped with a The top of the tailstock is tight, and it is very difficult to process. The workpiece is not only prone to "bamboo shape", "polygonal shape" and "waist drum shape", but sometimes it cannot be processed at all, and this kind of workpiece cannot be ground only Cars can be used instead of grinding and processed on a lathe, and the dimensional accuracy, shape accuracy and surface roughness of the processed parts do not meet the requirements, and it is easy to produce waste products

Method used

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Embodiment Construction

[0013] The processing method of the ultra-slender shaft of the present invention comprises the following steps:

[0014] The first step is to prepare the material, and select the blank with a machining allowance of 5mm.

[0015] The second step is heat treatment and normalizing, 185-215HB; the workpiece is straightened by reverse straightening method, and the bending degree of the whole length is not more than 0.5mm.

[0016] The third step is to clamp a suitable milling cutter on the three-jaw self-centering chuck, and turn the spindle to mill and grind the two jaws of the tool holder. This method can quickly grind the arc of the coaxial support jaw.

[0017] The fourth step is to use a three-jaw self-centering chuck to clamp and insert the spring coil, and the other end is installed in the tailstock with a support sleeve. When the turning tool is installed, it should be 0.3-0.5mm higher than the center of the spindle. Temporary movable support, the temporary support is made...

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Abstract

The invention relates to the field of machining, in particular to a machining method of an ultra-slender shaft. The method comprises the following steps of preparing a material, namely selecting a blank of which the machining allowance is 5mm; performing heat treatment normalization, wherein the hardness is 185-215HB; straightening a workpiece by using a reverse straightening method, wherein the total length curvature is smaller than or equal to 0.5mm; milling and grinding two claws of a follow rest; positioning the workpiece; grinding the workpiece; roughly lathing the workpiece; finely lathing the workpiece. According to the machining method, the dimension accuracy, the shape accuracy and the surface roughness of parts can be guaranteed, the machining process is simple and convenient, and the method is simple and easy to learn.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a processing method for an ultra-slender shaft. Background technique [0002] Turning slender shafts is a relatively difficult technical task, especially for turning ultra-slender shafts. If the traditional clamping method of one clamp and one top is adopted, that is, a three-jaw chuck is used for clamping on one side, and the other end is clamped with a The top of the tailstock is tight, and it is very difficult to process. The workpiece is not only prone to "bamboo shape", "polygonal shape" and "waist drum shape", but sometimes it cannot be processed at all, and this kind of workpiece cannot be ground only Cars can be used instead of grinding and processed on a lathe, and the dimensional accuracy, shape accuracy and surface roughness of the processed parts cannot meet the requirements, and it is easy to produce waste products. Contents of the invention [0003] In order ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 张淑芬
Owner SHAANXI QIYUAN TECH DEV
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