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2024
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CNC machining parts clamping and fixture selection
CNC machining parts clamping and fixture selection issues to be noted
1, mechanical parts processing of the clamping method to correctly select the positioning reference and clamping program, when we choose to set our benchmarks, we should follow the “benchmark uniformity” and “benchmark coincidence” two principles.
2, CNC machining of all surfaces as far as possible in a positioning fixture to complete, therefore, there is a need to choose easy to workpiece surfaces can be processed to the positioning method.
3, in CNC machining fixtures used, should be selected as far as possible by the common parts assembly, and can be adjusted fixtures, can shorten the production lead time.
4, to determine the position of the workpiece on the table, you need to consider the machining of each position, the length of the tool and the tool's stiffness on the machining quality.
CNC machining of forced vibration, is due to the process system outside the role of periodic interference force caused by vibration. CNC machining of forced vibration and general mechanical forced vibration is no difference, forced vibration frequency and the frequency of the interference force is the same or a multiple of it.
Design datum refers to the datum used to label the design dimensions on the part drawing. In a machine parts drawing, there can be one or more design benchmarks. a and b are mutual design benchmarks; 40mm outer circle is 60mm outer circle design benchmarks; plane 1 is plane 2 and hole 3 design benchmarks, hole 3 is hole 4 and hole 5 design benchmarks; centerline is the design benchmark of the inner hole of 30mm, the gear index circle 48mm and the top circle 50h8mm.
Wenling Lihua Machinery Co., Ltd
ADD:West Linqi Road, South Xiantian Village, Songmen Town, Wenling City, Taizhou City, Zhejiang Province
Domestic Sales Department