Method for processing cam with three-coordinate numerical control center
A CNC center and three-coordinate technology, which is applied in the processing of curved surfaces and in the field of cams, can solve the problems of curved surface roughness, low precision, difficult product quality, and long preparation time, and achieve stable product shape and surface dimensions. Short cycle and good product quality
Inactive Publication Date: 2012-08-01
贵州龙飞航空附件有限公司
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Although this method can also process cams, its disadvantages are: the preparation time in the early stage of processing is long, the size of the cam surface after manual filing is unstable, the roughness and precision of the curved surface are low, and the product quality is difficult to guarantee. And the cam manufacturing cycle is long and the efficiency is low
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[0026] The present invention is described in further detail below in conjunction with accompanying drawing and embodiment thereof:
[0027] 1. Create a post-processing file for defining and setting the FANUC system
[0028] According to the processing characteristics of the three-axis FANUC system CNC machining center equipment, aiming at the post-processor tool of the UGNX software CNC equipment system software, a new post-processor file-specific tool suitable for the FANUC control system used by the three-coordinate machining center equipment is established and customized (multi-axis program post processor). Through the new post-processor of the program, the NC machining program for machining various cam curve surfaces can be directly generated.
[0029] 2. CNC machining technology and tool selection of cam-shaped surface
[0030] The combination of three-axis machining center + horizontal rotary table is used in combination with ordinary end milling + horizontal rotary ta...
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A method for processing a cam with a three-coordinate numerical control center solves shortages of long preparation time before processing, unstable shape dimension of artificially filed and finished cams, low roughness and precision of curved surfaces, difficult guarantee of the quality, and long manufacturing period and low efficiency of the cams of the prior art. The method is characterized in that the method comprises the following steps: utilizing a UGNX postprocessor to set and define a postprocessor file suitable for an FANUC system according to product characteristics and processing characteristics; optimizing numerical control processing technology programming; and calculating through combining the cutter offset amount with the fine finishing coordinate offset amount to realize the processing of the cam by the numerical control processing centers. The method has the advantages of stable product shape dimension, high roughness and precision of the curved surfaces, good product quality, short manufacturing period and high efficiency. If an above five-axis numerical control center is used to radially process the cam, only a common standard milling cutter with the diameter phi / 2 of less than or equal to the radius R at the recess inflection point of the cam is needed. The method is provided for processing the cam through the three-coordinate numerical control center.
Description
technical field [0001] The invention relates to a cam, that is, a method for processing a curved surface, in particular a method for processing a cam by a three-coordinate numerical control center. Background technique [0002] In the prior art, the processing of the cam generally involves rough machining on a milling machine using a special cam profile fixture; then the fitter utilizes a special file repair template (measuring tool) for the cam to complete the file repair of the cam curve profile (the cam profile fixture and the cam The special file repair template needs to be designed and manufactured separately). Although this method can also process cams, its disadvantages are: the preparation time in the early stage of processing is long, the size of the cam surface after manual filing is unstable, the roughness and precision of the curved surface are low, and the product quality is difficult to guarantee. And the cam manufacturing period is long and the efficiency is ...
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IPC IPC(8): B23C3/08
Inventor 侯剑平徐辽建
Owner 贵州龙飞航空附件有限公司