Automatic tool changer comprehensive performance detection test stand

Abstract

The invention discloses an automatic tool changer comprehensive performance detection test stand, and belongs to the field of numerical control machine tool functional unit performance detection. The automatic tool changer comprehensive performance detection test stand integrates the mechanical technology and the sensor technology and virtual instruments, and accomplishes detection of all the following performances: tool change time, output shaft positioning accuracy (tool-capture-in-place accuracy, tool-change-in-place accuracy, returning accuracy, linear displacement accuracy and repetitive positioning accuracy), mechanical arm vibration, ATC operation stability, tool change success rate, globoidal indexing cam mechanism comprehensive indexing accuracy and dynamic characteristics. The technical problem that positioning accuracy is difficult to detect due to the fact that compound motion (rotary motion and linear motion) of the output shaft is solved by a positioning component of an encoder A; input and output parameters of a globoidal indexing cam mechanism are directly detected by the encoder A and an encoder B, and the comprehensive indexing accuracy and the dynamic characteristic detection accuracy of the globoidal indexing cam mechanism are improved. The automatic tool changer comprehensive performance detection test stand provides a comprehensive performance detection scheme for a professional manufacturing plant, and has significant practical meanings for a functional unit professional manufacturing plant.

Description

technical field [0001] The invention is a special comprehensive performance detection test bench for an automatic tool changer, which belongs to the field of performance detection of functional parts of numerical control machine tools. Background technique [0002] The automatic tool change device is an important functional part of the automatic tool change system of the machining center. It is used to realize the automatic exchange function between the tool magazine and the spindle tool, which not only shortens the auxiliary time of workpiece processing, but also reduces the workpiece due to multiple loading during the processing. The machining error caused by clamping improves the machining efficiency and precision of the machining center, and its performance directly affects the performance level of the main machine. Therefore, it is very necessary to perform performance testing on the automatic tool changer. For a long time, the method of detecting automatic tool change...

AI Technical Summary

Problems solved by technology

By designing the encoder A positioning component, the technical problem of difficult positioning accuracy detection due to the compound motion of the output shaft is effectively solved; through the encoder B shaft component, the problem of the connection between the encoder B and the arc camshaft is solved. The camshaft and output shaft are respectively equivalent to the input shaft and output shaft of the arc cam mechanism in the automatic tool changer used in this experiment, so the input and output parameters of the arc cam mechanism can be directly detected by using encoder A and encoder B

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