Title:
CONTROLLER OF MACHINE EQUIPPED WITH TAPPING FUNCTION
Document Type and Number:
WIPO Patent Application WO/1991/016163
Kind Code:
A1
Abstract:
A controller which makes it possible to effect tapping to the end surface of a work while the work is being rotated. A work rotation speed instruction (Vc) from a numerical controller (90) is applied to first and second speed control circuits (111, 121) of first and second control circuits (110, 120) so as to operate the both control circuits in a speed control mode and to rotate the work (70) fitted to a first main spindle (10) and a tapper (80) fitted to a second main spindle (20) by first and second main spindle motors (11, 21) at the same speed. Next, when an error pulse quantity corresponding to the work rotation speed instruction is set to an error register (123) of the second control circuit, the second control circuit operates in a tapping mode and executes a speed loop processing on the basis of a speed instruction on the basis of the moving instruction which is equal to the sum of the work rotation speed instruction and the tapping speed instruction (Uv) and on the basis of the position feedback signal (PPC) which represents an actual tapper rotating position and calculated in a position loop processing. The second control circuit rotates relatively the tapper at a predetermined tapping speed relative to the work. The tapper is moved in the axial direction towards the work and tapping is made to the end surface of the work.
Inventors:
KONO SHINICHI (JP)
TAKAHASHI HIRONOBU (JP)
TAKAHASHI HIRONOBU (JP)
Application Number:
PCT/JP1991/000554
Publication Date:
October 31, 1991
Filing Date:
April 24, 1991
Export Citation:
Assignee:
FANUC LTD (JP)
International Classes:
B23G1/18; G05B19/18; B23G3/00; (IPC1-7): B23G1/16; B23G3/00
Foreign References:
| JPS4523754Y1 | 1970-09-18 | |||
| JPS419274Y1 |
Other References:
See also references of EP 0480063A4
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