Deep hole processing tool structure

Abstract

The invention relates to a deep hole processing tool structure, which is characterized in that: a first positioning sleeve, a second positioning sleeve and a first flange cover are fastened to a processed surface at a position of a first fixing shaft of a box through screws; a first space ring, a second positioning plate and a second space ring are sequentially arranged between the second positioning sleeve and the first flange cover; a first positioning plate is arranged on the first fixing shaft between the first positioning sleeve and the second positioning sleeve in a floating mode; a second fixing shaft is parallel to the first fixing shaft and connected with a second flange cover through a screw; and a pad is arranged behind the first positioning plate and locked by a lock nut in a thread mode and fixes the axial position of the first positioning plate. The structure has the advantages of effectively providing support for a boring shaft, providing effective guarantee for links such as the processing of the box and the assembly of products, facilitating reducing the assembly difficulty, improving the processing efficiency of the products, ensuring the quality of the products,along with simple processing and assembly and reasonableness.

Description

Technical field [0001] The invention relates to a tooling structure for processing deep holes inside a workpiece, which is suitable for processing deep holes in large workpieces that cannot be directly processed by a spindle, and belongs to the technical field of mechanical structures. Background technique [0002] With the rapid development of China's machinery industry, especially the rapid development of large-scale equipment manufacturing industries such as aviation, aerospace, shipbuilding, wind power, metallurgy, etc., the requirements for the strength, precision and production efficiency of large-scale components are also increasing. The requirements for the processing capabilities of CNC machining centers have put forward higher requirements; however, the processing of complex large-scale components, especially in some narrow areas inside large-scale components, will inevitably lead to increased processing difficulties, which requires us to When using processing equipment...

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Problems solved by technology

[0002] With the rapid development of my country's machinery industry, especially the rapid development of large-scale equipment manufacturing industries such as aviation, aerospace, shipbuilding, wind power, and metallurgy, the requirements for the strength, precision and production efficiency of large components are also getting higher and higher. The requirements for the processing capacity of CNC machining centers put forward higher requirements; however, the processing of complex large components, especially in some small areas inside large components, will inevitably increase the processing difficulty, which requires us to When using processing equipment to process large components, it is also necessary to design different processing tools according to different processing workpieces to meet processing needs

[0003] For example, during the processing of the main shaft body of the TK6916 large-scale floor boring and milling machine designed and produced by our company, we encountered the problem that the deep hole inside the main shaft case was difficult to process. The holes, and the three holes have certain geometric tolerance requirements, which need to be processed once according to the process requirements; but the deep holes are arranged inside and at the far end of the spindle box that the spindle cannot directly process, which causes serious problems for the processing of the box. great difficulty

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