Inelastic collision and rolling viscous resistance particle coupling energy consumption numerical control machine tool

Abstract

An inelastic collision and rolling viscous resistance particle coupling energy consumption numerical control machine tool relates to a numerical control machine tool and is provided with a numerical control machine tool body, upright posts, a crossbeam, a top beam, a stiffening beam, a ram, an electric spindle and a worktable, wherein at least two coupling energy consumption boards are arranged in at least one structural part of the numerical control machine tool, and the structural part comprises at least one of the numerical control machine tool body, the upright posts, the crossbeam, the top beam, the stiffening beam, the ram and the like; a groove array is arranged on each of the coupling energy consumption boards; at least two high-surface-viscous-resistance polymer particles are arranged in each groove of the groove arrays; a low-surface-recovery-coefficient particle is placed in each of the grooves. When the machine tool is in high-speed heavy cutting, the coupling energy consumption boards can quickly dissipate unidirectional and multi-directional vibration energy generated by the cutting force step by step, the energy consumption factor is high, the vibration suppression effect is obvious, and the stability and the machining precision of the machine tool are effectively improved.

Description

technical field [0001] The invention relates to a numerically controlled machine tool, in particular to an energy-consuming numerically controlled machine tool coupled with inelastic collision and rolling viscous resistance particles. Background technique [0002] At present, the development trend of CNC machine tools is high speed, high precision and high efficiency. However, high speed and heavy cutting will cause the stability of the machine bed to decrease and affect the machining accuracy of the workpiece. [0003] The common method used abroad to improve the stability of machine tools (H wang C, Jack C H, Wu T S, et al. Framework for integrated mechanical design automation [J]. Computer Aided Design, 2000; 32 (5): 355-365) is Static and dynamic calculations are carried out on each component of the machine tool by finite element methods, and the arrangement of ribs and structural support of each structural part of the machine tool is optimized. However, the disadvantage...

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Problems solved by technology

[0002] At present, the development trend of CNC machine tools is high speed, high precision and high efficiency. However, high speed and heavy cutting will cause the stability of the machine bed to decline and affect the machining accuracy of the workpiece.

[0003] The common method used abroad to improve the stability of machine tools (H wang C, Jack C H, Wu T S, et al. Framework for integrated mechanical design automation [J]. Computer Aided Design, 2000; 32 (5): 355-365) is Carry out static and dynamic calculations for each component of the machine tool by finite element methods, and optimize the arrangement of ribs and structural support of each structural part of the machine tool, but the disadvantage is that the process calculation is difficult and the manufacturing cycle is long

The common method to improve the stability of machine tools in China (Chen Chao, several problems in the foundation design of large-scale gantry milling machines, Science and Technology Innovation Herald, 2011, 4:73-74) is to increase the wall thickness of the machine tool structure, and the disadvantage is that it increases the amount of metal materials used and manufacturing cost

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