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Accurate machining method for large-diameter porous workpieces

A processing method and large-diameter technology, applied in metal processing equipment, metal processing machinery parts, manufacturing tools, etc., can solve problems such as difficult to complete high-quality and precise processing of deformable porous parts

Active Publication Date: 2021-03-26
CHONGQING ZHIZHAN GEAR TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention intends to provide a method for precise machining of large-diameter porous workpieces to solve the problem that it is d...

Method used

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  • Accurate machining method for large-diameter porous workpieces
  • Accurate machining method for large-diameter porous workpieces

Examples

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Embodiment 1

[0024] Example 1, such as figure 1 As shown, this embodiment provides a tooling for processing large-diameter porous workpieces, including a strip-shaped body 1, and the body 1 is sequentially processed with pin hole 1, pin hole 2, pin hole 3, and pin hole 4 along the center line. Pin hole four 5, and one end that body 1 is processed with pin hole four 5 is trapezoid. The diameters of pin hole one 2 to pin hole four 5 decrease successively.

Embodiment 2

[0025] Embodiment 2, a method for precisely machining large-diameter porous workpieces, comprising the following steps:

[0026] A. Design and process tooling for processing large-diameter porous workpieces, which will be referred to as tooling in the future. There are pin holes 1 and 4 with a center distance equal to the radius of the pin hole indexing circle on the workpiece to be processed. Pin holes 1 and 2 Also be provided with pin hole two 3 and pin hole three 4 between pin hole four 5, the circle center of pin hole two 3 and pin hole three 4 is positioned at the connecting line of pin hole one 2 and pin hole four 5 circle centers;

[0027] B. First use the pressure plate to position and fix the tooling on the rotary table 8 of the machining center, such as figure 2 As shown, adjust to make the pin hole 1 concentric with the rotary table 8. Specifically, fix the dial indicator at the front end of the main shaft, extend the main shaft so that the pointer of the dial indi...

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Abstract

The invention discloses an accurate machining method for large-diameter porous workpieces in the field of accurate machining. The accurate machining method is characterized in that accurate metering and positioning is carried out by adopting a tool with four pin holes and matching with three coordinates, the tool is aligned and coincides with a workbench before machining, a reference circle of a product is converted by measuring the position of the nearest pin hole of a main shaft to fix the main shaft, the product is machined by rotating the workbench, and the other two pin holes of the toolare used for checking whether the size of the tool is consistent with the three coordinates or not. The accurate machining method can solve the problem that in the prior art, special-interchangeability large-diameter thin-wall easily-deformed porous parts are difficult to machine and position, machining is difficult, and the machining precision is difficult to guarantee.

Description

technical field [0001] The invention relates to the field of precision machining, in particular to a method for precisely machining large-diameter porous workpieces. Background technique [0002] Wind power generation is a clean new energy source, which converts wind power into electricity by erecting huge wind turbines on mountaintops and other places with abundant natural wind resources. Wind turbines include giant blades and several transmission components. In order to ensure that the wind turbines can maintain normal operation for a long time in the field and facilitate maintenance, the components require high machining accuracy and are interchangeable. Its components include a large-diameter disc-shaped part, with a diameter of about two meters, on which there are a number of pin holes for positioning and assembly, and the overall structure is a thin-walled and easily deformable structure with a thin thickness. Demand, its processing accuracy is high, especially the ma...

Claims

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Application Information

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IPC IPC(8): B23Q1/26B23Q3/06
CPCB23Q1/26B23Q3/06Y02E10/72
Inventor 张军警
Owner CHONGQING ZHIZHAN GEAR TRANSMISSION
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