Machine tool main shaft temperature rise test device

Abstract

The invention discloses a machine tool main shaft temperature rise test device, the machine tool main shaft temperature rise test device comprises a mounting frame for fixing a main shaft, a motor for driving the main shaft to rotate on the mounting frame, a temperature sensor and a rotating speed sensor on the mounting frame, the machine tool main shaft temperature rise test device also comprises a main control platform, and the main control platform is used for directly controlling the rotating speed of the motor so as to indirectly control the rotating speed of the main shaft. The main shaft collects temperature and rotating speed signals through the temperature sensor and the rotating speed sensor at different rotating speeds, temperature and rotating speed data are displayed through the main control platform, the temperature rise condition of the main shaft is known in real time, the temperature rise condition of the main shaft can be rapidly and accurately tested and detected through the device before the main shaft is assembled, operation is easy and convenient, efficiency is high, and data detection is more accurate.

Description

technical field [0001] The invention relates to a machine tool spindle test device, in particular to a machine tool spindle temperature rise test device. Background technique [0002] With the development of high-end manufacturing industry, CNC machine tools have been widely used in various industries. As the core precision component of CNC machine tools, the spindle component directly determines the machining accuracy and reliability of CNC machine tools. The temperature rise test requirements for the spindle in Item 4.6 of GB / T 9061-2006 "General Technical Conditions for Metal Cutting Machine Tools": During the test, the spindle should run sequentially from the lowest speed, and the running time of each speed should not be less than 2 minutes. Machine tools with interchangeable gears, belt transmission and stepless transmission can be used for low, medium and high speed operation. At the highest speed, it should run for enough time (not less than 1h) to make the spindle ...

AI Technical Summary

Problems solved by technology

During the implementation of the first measurement method, human errors are large, and the measurement position and angle variables of the handheld thermometer cannot be controlled. During the implementation of the second measurement method, there is a difference of 5-10°C between the temperature fed back from the measurement position and the actual temperature of the bearing. Both methods have the disadvantages of low accuracy of measurement data, inability to automatically process test data and determine test results, and the spindle temperature rise test cannot shorten the production cycle after the assembly of the whole machine is completed.

Images