Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1993-04-30
1995-07-04
Ro, Bentsu
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
318571, 318652, 29 33P, G05B 1918, B23P 2300, B23Q 316
Patent
active
054303605
ABSTRACT:
Spaced cutting tools, each having a plurality of linear axes and a rotational axis, are supported with a conveyor carrying successive parts past the tools. The tools include positioning motors and are positioned by a computer driven system including a controller and a tool program for positioning the tools to sequentially cut each part. Separate computer boards each include a memory unit and a CPU for coupling to individual positioning motors for each tool. The controller downloads the program for particular axes to the board for the tools. A positioning sensor is coupled to each tool axes and connected to the computer input for monitoring each tool position. All tools are simultaneously positioned using an initial fast constant speed feed followed by a varying slow speed, with a closed loop control, within a fixed time period. The positioning sensor includes a fixed magneto-strictive rod and a magnet coupled to the tool slide providing an absolute positioning signal, which is compared with a programmed positioned signal to control the feed. For angular tool orientation, a curved sensor rod is used with a correction table which corrects sensor output to an actual angle. The table is generated with a calibrating unit and the magnet applied to the angled positioning motor and stored in the memory unit. Other offset and zero tables are also downloaded from and to the boards for each tool.
REFERENCES:
patent: 3987283 (1976-10-01), Moeller
patent: 4517784 (1985-05-01), Beckett
patent: 4780951 (1988-11-01), Beyer et al.
patent: 4874996 (1989-10-01), Rosenthal
patent: 4878524 (1989-11-01), Rosenthal et al.
patent: 4909112 (1990-03-01), Rosenthal
patent: 5219379 (1993-06-01), Good et al.
Rosenthal Bruce C.
Zill Kevin L.
Kohler General Corporation
Ro Bentsu
LandOfFree
Multiple head positioning apparatus for woodworking machine and does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiple head positioning apparatus for woodworking machine and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple head positioning apparatus for woodworking machine and will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-762624