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Processing method for parallel threaded hole in inner cavity of large shaft

A hole processing method and parallel thread technology, which is applied in metal processing equipment, manufacturing tools, boring/drilling, etc., can solve the problems of increasing transportation costs and processing costs, affecting the on-site manufacturing cycle, and being unable to process, etc., to achieve large savings Equipment manufacturing cycle, good application effect and high processing precision

Inactive Publication Date: 2019-08-30
HARBIN ELECTRIC MASCH CO LTD
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AI Technical Summary

Problems solved by technology

[0004] Parallel threaded holes in the inner cavity of large shafts are a common fixing structure, which is used to bind the lead wires in the inner cavity to ensure its fixation. At present, the common processing technology is to use a large boring machine for direct processing, but the maximum length of the ram of the boring machine is approx. 3000mm long, when the length of the inner cavity of the shaft exceeds the stroke of the ram, it cannot be processed
At the same time, when there is no bed equipment at the position of the long axis, the long axis needs to be transferred to the equipment manufacturer for processing, which increases the transportation cost and processing cost, and affects the on-site manufacturing cycle. Processing method of threaded hole

Method used

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  • Processing method for parallel threaded hole in inner cavity of large shaft

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Embodiment Construction

[0028] Such as figure 1 As shown, a large-scale shaft inner cavity parallel threaded hole processing method, the technical scheme is:

[0029] 1) Lay the large shaft flat, and use V-shaped support tools at both ends to fix it firmly to prevent the shaft from rotating;

[0030] 2) According to the requirements of the processing drawings, draw the position line of the parallel hole 6 in the inner cavity of the shaft, and the position line is clear and accurate;

[0031] 3) Place the mold 1 on the arc surface of the inner cavity of the shaft, adjust the position of the mold 1, so that the distance between the end surface of the mold 1 and the parallel threaded hole 6 meets the processing requirements of the magnetic drill 5;

[0032] 4) Adjust the tire mold 1 level within 0.02mm, and there is no gap between the tire mold 1 and the inner cavity of the shaft;

[0033] 5) Assemble the adjustment block 2 and the screw rod 3, and screw the screw rod 3 into the threaded hole of the a...

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Abstract

The invention discloses a processing method for a parallel threaded hole in an inner cavity of a large shaft. A special mould is fixed in the inner cavity of the shaft and the parallel threaded hole in the inner cavity is processed by means of a magnetic drill, so that the problem that the threaded hole cannot be processed by large equipment is solved. The mould is not welded and fixed to the inner cavity of the shaft, so that the problem of deformation caused by welding the inner cavity of the shaft can be solved. The processing precision is improved, the processing efficiency is improved greatly and the manufacturing cost is saved. Meanwhile, the process method has the advantages of being simple and convenient, saving the manufacturing cost, shortening the production period, being high in processing precision and the like. The processing method is suitable for processing all parallel threaded holes in the inner cavities of the large shafts, and has very good promotional and application value.

Description

[0001] Technical field: [0002] The invention relates to a method for processing a parallel threaded hole in a large shaft inner cavity. [0003] Background technique: [0004] Parallel threaded holes in the inner cavity of large shafts are a common fixing structure, which is used to bind the lead wires in the inner cavity to ensure its fixation. At present, the common processing technology is to use a large boring machine for direct processing, but the maximum length of the ram of the boring machine is approx. 3000mm long, when the length of the inner cavity of the shaft exceeds the stroke of the ram, it cannot be processed. At the same time, when there is no bed equipment at the position of the long axis, the long axis needs to be transferred to the equipment manufacturer for processing, which increases the transportation cost and processing cost, and affects the on-site manufacturing cycle. Threaded hole machining process. [0005] Invention content: [0006] The inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B41/00
CPCB23B41/00
Inventor 杨雪峰李轶青于春玲荣雪靳涛房金彪孙影任立宇李海星艾勃庞国强
Owner HARBIN ELECTRIC MASCH CO LTD
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