A fully automatic exchange multi-directional swing head automatic indexing control method and device

Abstract

The invention relates to the field of numerical control machine tools, in particular to a method and device for automatic indexing control of a fully automatic exchange multi-directional swing head for numerical control machine tools, comprising the following steps: determining a single rotating coordinate axis that requires indexing control, and sending the corresponding The automatic indexing command of the rotating coordinate axis; according to the automatic indexing command, the spindle is positioned to the loose position of the rotating coordinate axis; the rotating coordinate axis is released; the control mode of the spindle is switched to the position control mode, and the spindle rotates to drive The rotating coordinate axis reaches the target angle; the position of the rotating coordinate axis is detected, and the angle correction of the rotating coordinate axis is performed; the rotating coordinate axis is clamped to complete the indexing of the rotating coordinate axis. Gear backlash and C-axis backlash to solve the gap difference between A-axis and C-axis, so that the backlash compensation value is more accurate. By driving the C-axis to swing left and right once until the upper and lower teeth of C are clamped, the problem of the top teeth of the C-axis caused by the change of the tooth gap caused by heat is solved.

Description

technical field [0001] The invention relates to the field of numerical control machine tools, in particular to a method and device for automatic indexing control of a fully automatic exchange multi-directional swing head. Background technique [0002] In CNC machine tools, the three linear coordinate axes are generally called X, Y, and Z axes, and the rotation axes that rotate around these three axes are called A, B, and C axes, and the C axis is the movement that rotates around the Z axis. axis. C-axis control refers to treating the C-axis as a servo axis, called spindle contour control, which can participate in the interpolation control of other coordinates. If the spindle motor is used to control the C axis, it is called the Cs axis. In this case, the rotation position (rotation angle) of the spindle in the lathe system is not controlled by the feed servo motor, but is realized by the spindle motor of FANUC Corporation of Japan. The position of the spindle (Angle) is de...

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Problems solved by technology

[0007] The present invention aims at the above-mentioned defects existing in the prior art, and proposes an automatic indexing control method and device for a fully automatic exchange multi-directional swing head. For the problem of backlash change, the present invention solves the gap difference between the A-axis and the C-axis by separately correcting the backlash of the A-axis and the C-axis, so that the compensation value of the backlash is more accurate

By driving the C-axis to swing left and right once until the upper and lower teeth of C are clamped, the problem of the top teeth of the C-axis caused by the change of the tooth gap caused by heat is solved.

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