A kind of processing method of thin-wall tube and shell type quenching hardware
A processing method and technology of thin-walled tubes, applied in the field of mechanical processing, can solve the problems of clamping deformation, high reject rate, unstable quality, etc., and achieve the effect of convenient loading and unloading of workpieces, strong applicability, and simple operation
Active Publication Date: 2019-12-13
齐齐哈尔建华机械有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide a processing method for thin-walled tube and shell hardening hardware, which solves the problem of unstable quality and high reject rate, and also solves the problem of clamping deformation in the processing of thin-walled tube and shell hardening hardware
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[0024] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail.
[0025] The invention provides a processing method of thin-walled tube and shell hardened hardware, which is characterized in that it specifically includes the following steps:
[0026] S1, blanking or forming blank
[0027] This part is processed with tube material 35CrMnSiA. If the part structure is not suitable for tube material processing, in order to avoid material waste, it does not need to withstand high overload. If the part needs to withstand a certain high overload and its comprehensive mechanical properties have corresponding requirements, the use of die forging blanks can be considered under the premise of saving costs, but the corresponding technical requirements for blank production must be put forward according to product design requirements.
[0028] S2, general car
[...
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Abstract
The invention discloses a machining method of a thin-walled tube shell type quenched part. The machining method comprises steps as follows: blanking or forming of a blank; rough machining of inner andouter shapes of a to-be-machined part; quenching; rough turning of the inner diameter; rough turning of the outer shape by clamping an inner cavity of the part with a two-layer wrapping type clamp; half finish turning by clamping the inner cavity of the part with a disc spring clamp; artificial aging for thermal insulation; finish turning of the outer shape by clamping the inner cavity of the part with an elastic air bag clamp; finish machining of an inner hole by putting the part subjected to finish turning of the outer shape in a semi-open type clamp. With the adoption of various clamps, positioning and clamping of the thin-walled quenched part is realized, and the machining accuracy is guaranteed with the adoption of the machining process. The method is applicable to machining of various thin-walled quenched part, is high in positioning accuracy and simple to operate and facilitates loading and unloading of the part, clamping force can uniformly act on loading and unloading of thepart, and the clamping force can be adjusted according to different conditions. The method is applicable to positioning and clamping of various thin-walled quenched part, and is wide in machining range and high in adaptability.
Description
technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a processing method for hardened hardware of thin-walled tubular shells. Background technique [0002] At present, the hardening hardware of thin-walled shells in our unit uses 35CrMnSiA steel pipe materials, which are quenched after rough machining, and the tensile strength is greater than 1300Mpa. The fixture device used in the mass production process of the CNC lathe adopts the slotted and expanded tile-type opening clamping tile clamping device to clamp the thin-walled hardened hardware. In the process of processing, in order to facilitate the loading and unloading of the workpiece on the fixture, there is a certain gap between the inner diameter of the clamping tile and the outer diameter of the clamped workpiece, and the outer diameter of the expansion tile and the inner diameter of the clamped workpiece. Due to the large clamping force of the hydraulic and...
Claims
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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 孟祥志王陆宁杜强曹胜义闫绍国毕达尉薛志馨王秋菊李蕴涵王德宽吴兆春刘飞龙杨峰孟宪伟
Owner 齐齐哈尔建华机械有限公司