Patent US4603511A successfully refreshed from Google Patents.
US4603511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding robot
Assignee: Aida Engineering Ltd
•
Filing: 1984-10-22
•
Granted: 1986-08-05
•
Expires: 2004-10-22
Abstract
Abstract A grinding robot of playback system to grind 3-D curved surface is disclosed which is comprised of No. 1 arm being horizontally oscillatable around a vertical axis, No. 2 arm pivoted horizontally oscillatable to the head of said No. 1 arm, fluid cylinder attached vertically to the head of said No. 2 arm, abrasive tool attached freely ascendable/descendable and turnable to the bottom of said fluid cylinder, workpiece-fixing table arranged freely turnable and inclineable from horizontal to vertical below said abrasive tool, and designed to make it possible to trace the 3-D curved-surface profile by constantly pressing down the workpiece perpendicularly toward the same by the action of said fluid cylinder and to perform the 3-D curved-surface's automatic grinding-work with the use of 2-D positional data and also to playback-control a retirement locus of the abrasive tool when retiring it temporarily from work area.
Inventors
- 👤 Isamu Komatsu
- 👤 Kenkichi Serizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:34
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/42; G05B19/421; B; B24; B24B; B24B19/00; B24B19/20; B24B27/00; B24B51/00; G05B2219/00; G05B2219/30; G05B2219/34; G05B2219/34365; G05B2219/36; G05B2219/36498; G05B2219/45; G05B2219/45161; Y; Y02; Y02P; Y02P90/00; Y02P90/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
A grinding robot having an abrasive tool for conducting the grinding work on a workpiece, and having a table device for holding the workpiece, and having a playback system to grind a three-dimensional curved-surface, comprising: a first arm being horizontally oscillatable around a vertical axis portion; said first arm having a head; a second arm pivoted to, and horizontally oscillatable to, said head of said first arm; said second arm having a head; a fluid cylinder attached perpendicularly to said head of said second arm; an abrasive tool attached to a bottom portion of said fluid cylinder for free movement in an ascendable direction and in a descendable direction, said abrasive tool being turnable relative to said bottom portion of said fluid cylinder.
Claim 2
Dependent Claim
123 words
A grinding robot having an abrasive tool for conducting the grinding work on a workpiece, and having a table device for holding the workpiece, and having a playback system to grind a three-dimensional curved-surface, comprising: a first arm being horizontally oscillatable around a vertical axis portion; said first arm having a head; a second arm pivoted to, and horizontally oscillatable to, said head of said first arm; said second arm having a head; a fluid cylinder attached perpendicularly to said head of said second arm; an abrasive tool attached to a bottom portion of said fluid cylinder for free movement in an ascendable direction and in a descendable direction, said abrasive tool being turnable relative to said bottom portion of said fluid cylinder.
Claim 3
Dependent Claim
39 words
The grinding robot of claim 1, wherein a work-holding table is freely turnable and is disposed opposite to said abrasive tool, said work-holding table being freely inclinable from a horizontal portion to a vertical position below said abrasive tool.
Claim 4
Dependent Claim
45 words
The grinding robot of claim 1, wherein said abrasive tool is constantly urged down perpendicularly relative to the workpiece to trace a three-dimensional curved-surface profile of the workpiece, thereby making automatic grinding of said three-dimensional curved-surface profile possible with the use of two-dimensional position data.
Claim 5
Dependent Claim
55 words
The grinding robot of claim 3, further comprising an abrasive tool emergency retirement device adapted to make it possible to playback-control the abrasive tool's retiring locus and to exactly return the abrasive tool to a position at a previous time of work interruption when retiring the abrasive tool temporarily in the course of playback work.
Claim 6
Dependent Claim
47 words
The grinding robot of claim 4, wherein a temporary retirement operation of the abrasive tool can be playback-controlled through an additional arrangement of "auxiliary area" for accessing the abrasive tool retirement locus data into a "two-dimensional position table" for storing the positional data of the abrasive tool.
References Cited (Backward Citations)
US335568A
Cited
US3888049A
Cited
US4178632A
Cited
US4378959A
Cited
US4242017A
Cited
US4445184A
Cited
US4520597A
Cited
US4501094A
Cited
US4523409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |