Device for detecting comprehensive performance of high-speed precision ball screw pair

Abstract

The invention provides a device for detecting the comprehensive performance of a high-speed precision ball screw pair, belongs to the technical field of detection of ball screw pairs, and relates to a device for detecting the comprehensive performance of an oiled and cooled high-speed precision hollow ball screw pair. The device is provided with a lathe bed of which an inner cavity has a U-shape groove structure; a power component is installed in the U-shape groove at the left end of the lathe bed; an angle encoder is arranged in a servo motor of the power component; an output shaft of the servo motor is connected with a torque sensor through a coupler; the coupler is installed between the torque sensor and the detected ball screw pair; the torque sensor is installed in the inner cavity of the lathe bed through a torque sensor support; an eddy current sensor is installed on a bracket of the eddy current sensor and the inner cavity of the lathe bed through a magnetic seat. The device can detect the comprehensive performance of different types of ball screw pairs, can be used for detecting multiple items, is particularly convenient to detect a hollow screw, is convenient to detect, install and adjust, wide in detection range and simple in structure and is provided with an electric pump.

Description

technical field [0001] The invention belongs to the field of comprehensive performance detection devices for high-speed precision transmission pairs, in particular to a detection device for comprehensive performance detection of high-speed precision hollow ball screw pairs after cooling through oil. Background technique [0002] In recent years, with the continuous improvement of the overall technical level of the equipment manufacturing industry, the performance requirements for ball screw pairs, the key components in CNC machine tools, precision instruments and various precision mechanical equipment, are also getting higher and higher. Its high speed and precision are common concerns at home and abroad. At the same time, its performance indicators such as positioning accuracy will be affected to varying degrees. These performance parameters are directly related to the quality of the screw pair. Due to the limited import of foreign high-precision technology products and the...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to solve the current situation of lack of a complete performance detection device for ball screw pairs, to overcome the deficiencies in the prior art, and to invent a comprehensive performance detection device for high-speed precision ball screw pairs. The eddy current sensor is used as the sensing element to detect the temperature of the high-speed precision ball screw auxiliary screw and the nut during high-speed operation; the eddy current sensor is used as the sensing element to detect the deformation of the ball screw pair during high-speed operation; The grating ruler is the sensing element. When the ball screw pair is running at high speed, the signal is differentiated once and twice to obtain the linear motion speed and acceleration of the workbench; the torque sensor is used as the sensing element, and the friction resistance of the guide rail is ignored. When the screw pair is running at high speed, the output torque driven by the motor to drive the ball screw pair to rotate at a constant speed is used to detect the friction torque of the ball screw pair; the acoustic meter is used as the sensing element to detect the noise of the ball screw when it is running at high speed; the acceleration sensor As the sensing element, the vibration performance of the ball screw pair is detected when the ball screw pair is running at high speed; the encoder and grating scale are used as the sensing elements to detect the backlash when the ball screw pair is running at high speed, and the ball screw pair is running at high speed. Comprehensive performance testing under state

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