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Leveling method for large parts processing

A technology for large parts and parts, applied in the field of machining and leveling of large parts, can solve the problem of low leveling accuracy, and achieve the effects of high precision, convenient operation and simple method

Active Publication Date: 2018-07-20
DONGFANG TURBINE CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for leveling large parts in order to solve the problem of low leveling accuracy when processing large parts.

Method used

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  • Leveling method for large parts processing
  • Leveling method for large parts processing
  • Leveling method for large parts processing

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Embodiment

[0027] When the method of the present invention is used, it is necessary to use a water connection alignment instrument. The present invention provides a water connection alignment instrument, its structure is as follows Figure 3 ~ Figure 7 As shown, the alignment instrument is mainly composed of three identical water cups 1 , two sections of hose 2 and three contour measuring blocks 3 . Wherein each water cup horizontally and horizontally fixes a contour measuring block 2 at the same position. Two water pipe interfaces 4 are arranged at the bottom of one of the three water cups, and one water pipe interface is respectively arranged at the bottom of the other two water cups. The two sections of hose are connected to the three water cups through the water pipe interface. The water pipe joint is a steel pipe fixed at the bottom of the water cup and communicated with the inner space of the water cup. Equal-height measuring block 3 is a rectangular measuring block, and when it ...

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Abstract

The invention provides a method for processing and leveling large parts, which includes the following steps: (1) Rough leveling: 1) firstly arrange three parallel pad irons within 180 degrees on the working surface, and then lift the parts and place them on the On the high shim iron, finally arrange a hydraulic jack at each contour shim position; 2) Use the height gauge and lift the hydraulic jack to roughly level the parts, and at the same time support gaskets on the contour shim; (2) Fine leveling: Use water to connect the leveling instrument for fine leveling. The method of the invention is simple, easy to operate, and the measurement accuracy can be controlled within 0.02mm, which is much higher than the traditional leveling method.

Description

technical field [0001] The invention relates to the field of processing and leveling of parts, in particular to a processing and leveling method for large parts (nuclear power low-voltage fourth-stage partitions). Background technique [0002] The diameter of the low-voltage fourth-stage partition of nuclear power is large, up to 5.6m; the span of the inner and outer rings is 885mm; the deflection is large; the height is high, up to 846mm. When the boring machine is milling the split surface, in order to ensure the perpendicularity between the outer ring shoulder surface and the middle split surface after milling is 0.08mm, when the partition is placed and leveled, it must be leveled within 0.05mm according to the sealing surface of the outer ring shoulder blade. However, the spindle length of the boring machine and the rotary diameter of the worktable are limited, so it is impossible to level according to the sealing surface of the outer ring scapula, and the boring machine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/18
CPCB23Q3/186
Inventor 彭刚杨金平杨科孟伟龙王俊宝张从平雷建肖波黄朝辉任小勇黄旭东
Owner DONGFANG TURBINE CO LTD
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