Device and method for recommending dynamically preferred speeds

Details Device and method for recommending dynamically preferred speeds Device and method for recommending dynamically preferred speeds

1997-09-22

2000-07-04

Grant, William

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

700174, 700179, 700177, 700180, 340680, 340683, G06F 1900, G08B 2100

Patent

active

06085121&

ABSTRACT:
A hand-held, portable device recommends dynamically preferred speeds for stabilizing or reducing undesirable vibration such as chatter in a machining process. The device may be applied to machining processes such as turning, boring, milling and drilling which exhibit a relative rotational motion between the cutting tool and workpiece. The device measures in a safe, non-contact manner via a microphone the dominant audio signal component of the sound pressure emanating from the machining processes. Without prior knowledge of the machining process parameters or the dynamic characteristics of the machine tool or workpiece, the audio signal is conditioned and processed to determine the frequency component levels. The rotational speeds which are more likely to lead to a stable machining process are calculated based on the number of teeth on the cutting tool and the identified dominant frequency of vibration. The dynamically preferred speeds are displayed as recommendations to the process operator or machinist.

REFERENCES:
patent: 2419120 (1947-04-01), Clark
patent: 3550107 (1970-12-01), Thompson et al.
patent: 3599864 (1971-08-01), Liddle
patent: 3605029 (1971-09-01), Freedman
patent: 3614484 (1971-10-01), Shoh
patent: 3619671 (1971-11-01), Shoh
patent: 3774730 (1973-11-01), Maddux
patent: 3798626 (1974-03-01), Weichbrodt et al.
patent: 4072842 (1978-02-01), Ullmann et al.
patent: 4176396 (1979-11-01), Howatt
patent: 4413507 (1983-11-01), Drew et al.
patent: 4456960 (1984-06-01), Wakai
patent: 4558311 (1985-12-01), Forsgren et al.
patent: 4559600 (1985-12-01), Rao
patent: 4604834 (1986-08-01), Thompson
patent: 4636780 (1987-01-01), Thomas et al.
patent: 4709198 (1987-11-01), Ogo et al.
patent: 4713770 (1987-12-01), Hayes et al.
patent: 4736625 (1988-04-01), Patterson et al.
patent: 4809200 (1989-02-01), Moore et al.
patent: 4831365 (1989-05-01), Thomas et al.
patent: 4853680 (1989-08-01), Thomas
patent: 5070655 (1991-12-01), Aggarwal
patent: 5170358 (1992-12-01), Delio
patent: 5518347 (1996-05-01), Cobb, Jr.
patent: 5903855 (1999-05-01), Kiyota
patent: 5905440 (1999-05-01), Julian et al.
patent: 5907491 (1999-05-01), Canada et al.
patent: 5912821 (1999-06-01), Kobayashi
patent: 5983165 (1999-11-01), Minnich et al.
patent: 6029098 (2000-02-01), Serizawa et al.
Smith, S. et al., "Update on High-Speed Milling Dynamics," ASME--PED, Winter Annual Meeting, Intelligent & Integrated Manufacturing Analysis & Synthesis, Ed. Liv et al., 1987, vol. 25, p. 153-165.
Hernandez, I. et al., "Unmanned Machining, High-Speed, High-Power Milling," Manufacturing Processes, Systems & Machines, 14th Conference on Production Research & Technology, Ed. S. K. Samanta, Ann Arbor, Michigan, Oct. 6-9, 1987, pp. 35-41.
Tlusty, J. et al., "High Speed High Power Milling," Advances in Manufacturing Systems Integration & Processes, 15th Conference on Production Research & Technology, Pub. SME, Ed. Prof. David A. Dornfeld, Berkeley, California, Jan. 9-13, 1989, pp. 215-222.
Tlusty, J., "Milling Performance Tests of the Scharmann Ecocut Horizontal Boring and Milling Machine," University of Florida, Jun. 1986.
TBM Inc. et al., SETCO Proposal, "Highly Stable, High Speed, High Power (HS/HSHP) Spindle Head," Cincinnati, Ohio, Dec. 20, 1988.
Delio, T. S., "A Sensor-Based Adaptive Control Restraint System for Automatic Spindle Speed Regulation to Obtain Highly Stable Milling," A Dissertation, University of Florida, 1989.
International Search Report for International Application No. PCT/US98/18891, dated Jan. 12, 1999.
*See United States Patent No. 4,413,507.

Affiliated with

Also associated with

Rating

Device and method for recommending dynamically preferred speeds does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device and method for recommending dynamically preferred speeds , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for recommending dynamically preferred speeds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1494785