公开(公告)号：WO1993000620A1

公开(公告)日：1993-01-07

申请号：PCT/US1992005057

申请日：1992-06-17

Applicant: UNILENS CORP. U.S.A.

Inventor： UNILENS CORP. U.S.A. ,  REHSE, Denis

IPC: G05B19/403

CPC classification number: G05B19/4148 ,  G05B2219/33169 ,  G05B2219/33338 ,  G05B2219/34041 ,  G05B2219/34167 ,  G05B2219/34359

Abstract: A machine tool control system in which a programmable controller operates a machine to carry out a plurality of programmable functions. The controller includes a plurality of processor means, a first one of the processor means capable of pre-processing and forwarding control information to a second of said processor means, wherein said second processor means provides control information to control machine movement. Advantageously, the second processor means operates on a periodic time based interrupt method which greatly increases the accuracy of the machine.

公开(公告)号：WO1988006312A1

公开(公告)日：1988-08-25

申请号：PCT/JP1988000159

申请日：1988-02-17

Applicant: FANUC LTD ,  SEKI, Masaki ,  SAMUKAWA, Koji ,  HANAOKA, Osamu

Inventor： FANUC LTD

IPC: G05B19/403

CPC classification number: G05B19/41 ,  G05B2219/34167 ,  G05B2219/35525

Abstract: Method of generating curved surfaces and more particularly a method of generating two curved surfaces for rough working and finish working. A first spatial curve (1) is divided into N-many segments and a second spatial curve that has been determined separately is divided similarly into N-many segments. Corresponding ith division points Ri (i = 1, 2, ...) are connected to generate a curved surface for rough working. Next, the first spatial curve (1) generated by connecting sequentially the division points Ri (i = 1, 2, ...) is divided into M (>N)-many segments and the second spatial curve is likewise divided into M-many segments. The curved surface for finish working is generated by connecting the ith division point Si (i = 1, 2, 3, ...) of the first spatial curve (1) and the corresponding division point of the second spatial curve.

公开(公告)号：WO1984001444A1

公开(公告)日：1984-04-12

申请号：PCT/JP1983000326

申请日：1983-09-30

Applicant: FANUC LTD ,  NOZAWA, Ryoichiro ,  KAWAMURA, Hideaki ,  SASAKI, Takao

Inventor： FANUC LTD

IPC: G05B19/407

CPC classification number: G05B19/4103 ,  G05B19/416 ,  G05B2219/34167

Abstract: An acceleration and deceleration circuit accelerates or decelerates a feed speed up to an instructed speed at a predetermined time constant (tau), irrespective of variations in the speed. This circuit comprises means (301) for calculating the distances moved in each axial direction at each sampling period (T), a first memory (#1 - #n) for storing the moved distance components in each axial direction for n samplings (where n = tau/T), a second memory (SUM) for storing the calculated result, and an arithmetic unit (ADD, ACC, DIV) for calculating DELTAXn - DELTAX0 + St$(1,8)$St where DELTAXn is the latest moved distance component, DELTAX0 is the oldest of the moved distance components stored in the first memory, and St is the contents of the second memory, and divides the calculated result St by n, to store the calculated result St in the second memory and outputting, as the moved distance component during the present sampling time, St/n.