Research on Key Technologies of Unit-Based CNC Machine Tool Assembly Design

Abstract

Assembly is the part that produces the maximum workload and consumed time during product design and manufacturing process. CNC machine tool is the key basic equipment in manufacturing industry and research on assembly design technologies of CNC machine tool has theoretical significance and practical value. This study established a simplified ASRG for CNC machine tool. The connection between parts, semantic information of transmission, and geometric constraint information were quantified to assembly connection strength to depict the assembling difficulty level. The transmissibility based on trust relationship was applied on the assembly connection strength. Assembly unit partition based on assembly connection strength was conducted, and interferential assembly units were identified and revised. The assembly sequence planning and optimization of parts in each assembly unit and between assembly units was conducted using genetic algorithm. With certain type of high speed CNC turning center, as an example, this paper explored into the assembly modeling, assembly unit partition, and assembly sequence planning and optimization and realized the optimized assembly sequence of headstock of CNC machine tool.

Pervasive Investigations of Critical Speed over Weight and Deflection Factors of Shaft Assembly in CNC Ball Screw System

“…This is due to the fact that if we apply load on the shaft, the deflection remains minimum for the first cycle and maximum for the last cycle which remained true in our case too. Sheng et al [22] presented research on key technologies of unit-based CNC machine tool assembly design. This seems consistent with the results reported in Figure 4 highlighting inclusive investigations of weight versus shaft load cyclic analysis.…”

Research and Application of CNC Machine Tool Fault Intelligent Diagnosis Technology

“…One is the CNC machine tool diagnostic system, which ensures that the CNC machine tool stays safely and smoothly in place to avoid slipping and sliding. The other one is the CNC diagnosis system based on intelligent fault, which ensures that the driver slows down or stops the machine tool when controlling the CNC processing equipment [5][6][7].…”

Research on Miniaturization Design of Floor-standing Pole Electric Slewing Mechanism

“…With the rapid growth of the power industry, the application of floor-standing poles has become increasingly widespread [1][2][3]. However, modern power equipment places higher demands on these structures, including the need for downsizing, enhanced efficiency, and adaptability to diverse application environments.…”