US4163346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine control
Assignee: Milacron Inc
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Filing: 1978-02-01
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Granted: 1979-08-07
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Expires: 1998-02-01
Abstract
Abstract A tangential grinding machine has a variable grinding feed rate which is dependent upon the length of the cutting or grinding path which occurs between the grinding wheel and a workpiece. The variable feed rate accomodates fluctuations in grinding wheel and workpiece dimensions to control the grinding time and optimize stock removal rates.
Inventors
- 👤 Charles B. Matson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:22
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/16; B24B47/00; B24B47/20
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
87 words
In a tangential grinding machine having a base, a grinding wheel, and means for effectuating a relative tangential infeed movement between a workpiece and the grinding wheel along a grinding path of varying length, an apparatus for controlling the tangential infeed rate, comprising: (a) means for detecting variations in the contact portion of the tangential grinding path length; and (b) means for controlling the rate of relative tangential movement between the grinding wheel and the workpiece in accordance to the detected variations in the grinding path length.
Claim 2
Dependent Claim
87 words
In a tangential grinding machine having a base, a grinding wheel, and means for effectuating a relative tangential infeed movement between a workpiece and the grinding wheel along a grinding path of varying length, an apparatus for controlling the tangential infeed rate, comprising: (a) means for detecting variations in the contact portion of the tangential grinding path length; and (b) means for controlling the rate of relative tangential movement between the grinding wheel and the workpiece in accordance to the detected variations in the grinding path length.
Claim 3
Dependent Claim
32 words
An apparatus as recited in claim 1 wherein the detecting means includes means for sensing the relative positions of the grinding wheel and the workpiece when the grinding action is initiated therebetween.
Claim 4
Dependent Claim
40 words
An apparatus as recited in claim 1 wherein the effectuating means moves the workpiece toward the grinding wheel, the movement commencing during each grinding cycle from a cycle commencement position and further including means for varying the cycle commencement position.
Claim 5
Dependent Claim
33 words
An apparatus as recited in claim 1 wherein the controlling means decreases the rate of relative tangential movement between the grinding wheel and the workpiece as the tangential grinding path diminishes in length.
Claim 6
Dependent Claim
34 words
An apparatus as recited in claim 1 wherein the relative movement between the grinding wheel and workpiece is varied at a rate directly proportional to the detected variations in the tangential grinding path length.
Claim 7
Dependent Claim
35 words
An apparatus as recited in claim 5 wherein the relative movement between the grinding wheel and the workpiece is further varied in accordance with at least one additional parameter, the additional parameter being selectively variable.
Claim 8
Dependent Claim
27 words
An apparatus as recited in claim 6 wherein the relative movement between the grinding wheel and workpiece is inversely proportional to the magnitude of the additional parameter.
Claim 9
Dependent Claim
82 words
In a tangential grinding machine having a base, a grinding wheel supported upon the base, and means for selectively effectuating relative tangential movement between the grinding wheel and a workpiece for selective grinding contact therebetween, a control apparatus comprising: (a) means for generating a signal representative of the distance between the grinding wheel-workpiece contact position and the finish size position; and (b) means responsive to said signal for controlling the rate of relative tangential movement between the workpiece and the abrasive wheel.
Claim 10
Dependent Claim
82 words
In a tangential grinding machine having a base, a grinding wheel supported upon the base, and means for selectively effectuating relative tangential movement between the grinding wheel and a workpiece for selective grinding contact therebetween, a control apparatus comprising: (a) means for generating a signal representative of the distance between the grinding wheel-workpiece contact position and the finish size position; and (b) means responsive to said signal for controlling the rate of relative tangential movement between the workpiece and the abrasive wheel.
Claim 11
Dependent Claim
102 words
A tangential grinding machine, comprising: (a) a base; (b) a grinding wheel supported upon the base; (c) a dressing assembly supported upon the base; the dressing assembly being relatively movable with respect to the grinding wheel; (d) means for effectuating relative tangential movement and selective interfacing between the dressing assembly and the grinding wheel along a predetermined path; (e) means for generating a signal representative of the interface distance between the grinding wheel and dresser assembly along the predetermined path; (f) means responsive to the generated signal for regulating the rate of relative movement between the grinding wheel and the dresser assembly.
Claim 12
Dependent Claim
102 words
A tangential grinding machine, comprising: (a) a base; (b) a grinding wheel supported upon the base; (c) a dressing assembly supported upon the base; the dressing assembly being relatively movable with respect to the grinding wheel; (d) means for effectuating relative tangential movement and selective interfacing between the dressing assembly and the grinding wheel along a predetermined path; (e) means for generating a signal representative of the interface distance between the grinding wheel and dresser assembly along the predetermined path; (f) means responsive to the generated signal for regulating the rate of relative movement between the grinding wheel and the dresser assembly.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-08-06 | 1983-02-05 | 1983-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-06 | 1987-02-05 | 1987-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-06 | 1991-02-05 | 1991-08-07 | $7700.00 | Window Closed / Lapsed |