High speed, light weight and big lead is the development trend of the ball screw. And the service condition and the processing condition of the ball screw are more censorious than before nowadays. Because of the applicable scope expansion and the noise requirement of factory, the noise of ball screw...
High speed, light weight and big lead is the development trend of the ball screw. And the service condition and the processing condition of the ball screw are more censorious than before nowadays. Because of the applicable scope expansion and the noise requirement of factory, the noise of ball screw is a problem that need to be solved. Even though the noise of ball screw is very important, but few researchers focused on how to improve the noise level of the ball screw. The ball screw is an important noise source, and it can be one of the resonant reason with other multiple noise sources in the mechanical system like a machine tool. For the complexity of the service conditions of the mechanical system with ball screw, the noise analysis of the mechanical system is unfeasible. Therefore, the noise analysis foundation should be established and the ball screw itself noise analysis was needed. In the grinding process optimization case, through comparing the noise performance of different parameters in the machining process respectively, a group of optimized machining process parameters were obtained. As the result, the optimization brings more than 6 dB improvement in different rotating speeds. Tube circulate method was widely used in the ball screw, but in this paper, low-noise end-cap circulate method will be used and the noise reduction by end-cap circulate method was discussed. In tube circulate method case, because of the impact of ball to the tube corner and ball rolling motion, there are some vibration and noise happened. This type of noise is an important part of the mechanical system noise, and in order to solve it, the end-cap circulate method was used. End-cap circulate system can avoid the impact of ball to the tube corner and cut down the ball rolling time which causes unwanted noise. As the result, the end-cap circulate method brings about 6 dB improvement comparing with the tube circulate method. The demand for high-speed/high-precision machine tools is rapidly increased in response to the development of production technology which requires high precise parts and high productivity. As tried and tested technology, ball screw drive systems are still used in a majority of machine tools due to their low cost and high degree of stiffness. A high-speed(4000 rpm, 50 m/s) ball screw drive system generates more heat and results in greater noise, adversely affecting the quality of the machine. In order to analyse the heat generation and control the noise, a ball screw cooling system was used. It can bring 6 dB noise reduction in 4000 rpm to meet the requirement of machine tool recommended noise level.
High speed, light weight and big lead is the development trend of the ball screw. And the service condition and the processing condition of the ball screw are more censorious than before nowadays. Because of the applicable scope expansion and the noise requirement of factory, the noise of ball screw is a problem that need to be solved. Even though the noise of ball screw is very important, but few researchers focused on how to improve the noise level of the ball screw. The ball screw is an important noise source, and it can be one of the resonant reason with other multiple noise sources in the mechanical system like a machine tool. For the complexity of the service conditions of the mechanical system with ball screw, the noise analysis of the mechanical system is unfeasible. Therefore, the noise analysis foundation should be established and the ball screw itself noise analysis was needed. In the grinding process optimization case, through comparing the noise performance of different parameters in the machining process respectively, a group of optimized machining process parameters were obtained. As the result, the optimization brings more than 6 dB improvement in different rotating speeds. Tube circulate method was widely used in the ball screw, but in this paper, low-noise end-cap circulate method will be used and the noise reduction by end-cap circulate method was discussed. In tube circulate method case, because of the impact of ball to the tube corner and ball rolling motion, there are some vibration and noise happened. This type of noise is an important part of the mechanical system noise, and in order to solve it, the end-cap circulate method was used. End-cap circulate system can avoid the impact of ball to the tube corner and cut down the ball rolling time which causes unwanted noise. As the result, the end-cap circulate method brings about 6 dB improvement comparing with the tube circulate method. The demand for high-speed/high-precision machine tools is rapidly increased in response to the development of production technology which requires high precise parts and high productivity. As tried and tested technology, ball screw drive systems are still used in a majority of machine tools due to their low cost and high degree of stiffness. A high-speed(4000 rpm, 50 m/s) ball screw drive system generates more heat and results in greater noise, adversely affecting the quality of the machine. In order to analyse the heat generation and control the noise, a ball screw cooling system was used. It can bring 6 dB noise reduction in 4000 rpm to meet the requirement of machine tool recommended noise level.
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