Numerical control accurate grinding process for screw rotor
A precision grinding and screw technology, which is applied in the direction of machine tools designed for grinding the rotating surface of workpieces, parts of grinding machine tools, grinding/polishing equipment, etc., can solve the problem that the dimensional accuracy, stability and control of screw rotors cannot be guaranteed Problems such as workpiece grinding size and inability to use NC programs to achieve the effects of expanding processing capabilities, stabilizing processing quality, and ensuring processing accuracy
Inactive Publication Date: 2014-04-16
SHAANXI UNIV OF TECH
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Problems solved by technology
The disadvantage of this implementation is that on the one hand, it is impossible to realize the influence of the dimensional change of the grinding wheel on the final grinding wheel profile accuracy caused by the dressing of the grinding wheel; Accuracy and its stability
Method used
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Embodiment Construction
[0019] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0020] Such as figure 1 , a CNC precision grinding process for a screw rotor includes a CNC trimming process for a grinding wheel, a CNC grinding process for a screw rotor and the synthesis of the two process chains, involving three spatial coordinate systems, including the left diamond wheel in a CNC screw rotor grinder 1. Right diamond wheel 4, grinding wheel 5, right top 7, screw rotor 8, left top 9; the big ends of left diamond wheel 1 and right diamond wheel 4 are installed on the two ends of diamond wheel frame 2 opposite and coaxial, and the two diamond wheels are the same The shaft and the axis are the diamond wheel axis 3; the grinding wheel axis 6 is always parallel to the diamond wheel axis 3; the grinding wheel 5, the left diamond wheel 1, the right diamond wheel 4, and the diamond wheel frame 2 are installed together on the grinding wheel ...
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The invention relates to a numerical control accurate grinding process for a screw rotor. A diamond wheel, a grinding wheel, a center and the screw rotor in a numerical control screw rotor grinding machine are adopted in the process; a CNC patching process chain of the grinding wheel, a numerical control grinding process chain of the screw rotor and synthesis of the two process chains are involved in the process, and related process parameters are associated on the numerical control rotor grinding machine by the adoption of a dimension chain association mode to form a dynamic dimension chain generated before and after grinding wheel patching and before and after screw rotor grinding feed. Continuous efficient accurate grinding can be performed on the screw rotor without manual operation during the time after initial tool setting of a machine tool and before next-time replacing of the grinding wheel or next-time adjusting of the machine tool. The numerical control accurate grinding process for the screw rotor has obvious effects in machine tool machining efficiency improving, operation difficulty reducing, machine tool machining capacity expanding, screw rotor machining accuracy guaranteeing and machining quality stabilizing.
Description
technical field [0001] The invention belongs to the technical field of grinding and grinding machines, and relates to a numerically controlled precision grinding process for screw rotors, which is specially used for the precision grinding of screw rotors of air compressors and screw pump rotors. Background technique [0002] The screw compressor was invented in the 1930s. After continuous basic theoretical research and product development tests, through the continuous improvement of the rotor profile and the successful development of special rotor processing equipment, the superiority of the screw compressor has been continuously brought into play. It is widely used in mining, chemical industry, power, metallurgy, construction, machinery, refrigeration and other industrial sectors. [0003] The processing of high-precision screw rotors has always been the key to the production of screw compressors. At present, the grinding process of the screw rotor adopts the process metho...
Claims
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Login to View More IPC IPC(8): B24B19/00
CPCB24B5/02B24B53/062
Inventor 赵永强侯红玲李志峰
Owner SHAANXI UNIV OF TECH