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A processing technology and camshaft technology, which is applied in the field of new camshaft processing technology, can solve the problems of low processing efficiency and processing accuracy, the surface roughness of the full length dimension of the camshaft, and the position of the bolt mounting hole on the flange end face cannot meet the requirements, etc. Achieve the effects of ensuring verticality, improving processing accuracy, and ensuring the overall length
Active Publication Date: 2013-03-06
CRRC QISHUYAN CO LTD
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[0003] The technical problem to be solved by the present invention is: the original technology needs to rely on special tools, and the processing efficiency and processing accuracy are low, which is mainly reflected in the overall length of the camshaft, the profile of the cam profile and its surface roughness, and the mounting holes of the flange end bolts. Position degree etc. can not meet the requirements, provide a new camshaft processing technology
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[0012] figure 1 It is a structural representation of the present invention. The figure includes blank→quenching and tempering→sampling→drilling center hole→car 1→car 2→turning and milling→fitter deburring→drilling Φ70 oil hole→cam surface quenching→turning and milling 2→finishing cam→flaw detection and demagnetization→acid Erosion inspection→clamp 1→vibration deburring→clamp 2→three-coordinate inspection→cam profile inspection→clamp 3→finished product inspection→cleaning→locating sleeve installation→oiling→storage. First, the cam profile of the blank is quenched and tempered, and then samples are taken, and the center hole is drilled through turning one and turning two. The bolt mounting holes on the flange end face of the camshaft are processed by turning and milling, which is processed by turning and milling. The measurement process determines the positioning pin hole and the bolt installation hole of the transmission phase angle of each camshaft at the two ends. The machin...
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Abstract
The invention relates to the field of machining, in particular to a novel cam shaft machining process, which comprises the following steps of: preparation of a blank, tempering, sampling, drilling a center hole, first turning, second turning, first milling, burring by bench workers, drilling of an oil hole with diameter of 70, quenching of a cam profile, second milling, accurate grinding of a cam, flaw detection and demagnetization, acid etching detection, first clamping, vibrating for burring, second clamping, three-dimensional detection, detection of a cam outline, third clamping, detection of finished products, cleaning, installation of a positioning sleeve, oil coating, and storing. The numerical control turning and milling machining and the CBN (Cubic Boron Nitride) high-speed follow-up grinding machining are adopted for machining the cam profile of the process disclosed by the invention.
Description
technical field [0001] The invention relates to a workpiece processing technology, in particular to a novel camshaft processing technology. Background technique [0002] The cam surface processing of the improved former technology adopts the profiling processing method: profiling turning → profiling grinding and other profiling cutting processing; the bolt mounting holes on the flange end face are drilled by drilling jigs; the flange end face is end face grinding Machined to ensure its perpendicularity with respect to the common axis. This process not only requires special tools such as profiling and drilling molds, but also has low processing efficiency and processing accuracy, which is mainly reflected in the overall length of the camshaft, the profile of the cam profile and its surface roughness, the position of the bolt mounting holes on the flange end face, etc. The request cannot be met. Contents of the invention [0003] The technical problem to be solved by the p...
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