GB1147255A - Control system for grinding machines - Google Patents
Control system for grinding machinesInfo
- Publication number
- GB1147255A GB1147255A GB36175/67A GB3617567A GB1147255A GB 1147255 A GB1147255 A GB 1147255A GB 36175/67 A GB36175/67 A GB 36175/67A GB 3617567 A GB3617567 A GB 3617567A GB 1147255 A GB1147255 A GB 1147255A
- Authority
- GB
- United Kingdom
- Prior art keywords
- abrasive belt
- roll
- reference signal
- motor
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
- B24B21/12—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a contact wheel or roller pressing the belt against the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/12—Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/40—Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
1,147,255. Grinding. CARBORUNDUM CO. 7 Aug., 1967 [9 Aug., 1966], No. 36175/67. Heading B3D. [Also in Division G3] A control system for a grinding machine having (i) an abrasive belt, (ii) an electric motor for driving said abrasive belt, and (iii) an infeed roller engageable with and rotatable by a workpiece as it advances thereby, comprises (a) means for generating a signal responsive to current drawn by said motor, (b) means for generating a reference signal, (c) means controlled by said infeed roller for modifying said reference signal to compensate for wear of said abrasive belt, (d) means for comparing said signals, and (e) means responsive to said comparing means for adjusting the grinding pressure of said abrasive belt on the workpiece. An abrasive belt 18 is driven by an electric motor 12. The workpiece W in the form of a continuous strip of stock is advanced from a pay off roll 22 through a tensioning means, over an infeed roll 24, under a guide roll 26, the belt 18 and a guide roll 28, over an outfeed roll 30 to a take-up roll 32. A back up roller 34 is actuated by an hydraulic cylinder 40, the depth of metal removed from the surface of a workpiece depending primarily on the force imposed by the roller. The flow of hydraulic fluid in conduits 42, 44 connected to the cylinder is controlled by an hydraulic servo control valve 46 controlled by a control circuit 48 responsive to the current in the motor 12. The control circuit is similar to that described in Specification 1,142,566, a signal responsive to current drawn by the motor 12 being applied to a control winding 78 of a servo valve control unit 80 and a reference signal being supplied to a control winding 82 of the unit 80. To effect automatic variation of the reference signal to compensate for wear of the belt 18, a program control unit 180 is included in the reference signal circuit. The unit 180 comprises a variable resistor 182 having a movable contact 196 operated by a cam 188 driven by a self synchronous motor 186 driven by a selfsynchronous generator 185 driven, through a variable speed transmission 184, by the infeed roller 24. The cam 188 makes one revolution during the life of an abrasive belt and is shaped to establish an initial low grinding pressure which is rapidly increased at the outset and then increased, by gradually decreasing amounts.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57127166A | 1966-08-09 | 1966-08-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1147255A true GB1147255A (en) | 1969-04-02 |
Family
ID=24283010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36175/67A Expired GB1147255A (en) | 1966-08-09 | 1967-08-07 | Control system for grinding machines |
Country Status (6)
Country | Link |
---|---|
US (1) | US3524285A (en) |
DE (1) | DE1652010A1 (en) |
FR (1) | FR1533805A (en) |
GB (1) | GB1147255A (en) |
NO (1) | NO125308B (en) |
SE (1) | SE328213B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104440472A (en) * | 2014-11-19 | 2015-03-25 | 德清德沃装饰材料有限公司 | Roller type wood veneer sanding machine |
CN105598796A (en) * | 2016-03-17 | 2016-05-25 | 余晓娜 | Wiredrawing, polishing and grinding system for metal plates |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4840863B1 (en) * | 1970-10-02 | 1973-12-03 | ||
JPS5016551B1 (en) * | 1970-12-19 | 1975-06-13 | ||
AU461290B2 (en) * | 1970-12-29 | 1975-05-22 | Toshiba Machine Co. Ltd. | Method and apparatus for in-feed control for improving the accuracy of machining of a workpiece |
US3736704A (en) * | 1971-05-17 | 1973-06-05 | Cincinnati Milacron Heald | Grinding machine |
US3913277A (en) * | 1972-09-01 | 1975-10-21 | Cincinnati Milacron Heald | Grinding machine |
JPS5216837B2 (en) * | 1973-07-17 | 1977-05-11 | ||
JPS5222471B2 (en) * | 1973-10-05 | 1977-06-17 | ||
US4014142A (en) * | 1974-01-16 | 1977-03-29 | Norton Company | Method and apparatus for grinding at a constant metal removal rate |
DE2517001A1 (en) * | 1975-04-17 | 1976-10-21 | Buderus Eisenwerk | METHOD AND DEVICE FOR CONTROLLING THE FEED OF A GRINDING WHEEL |
DE3103874A1 (en) * | 1981-02-05 | 1982-09-09 | Basf Ag, 6700 Ludwigshafen | METHOD AND DEVICE FOR PROCESSING THE SURFACE OF MAGNETIC RECORDING CARRIERS |
JPS59156507A (en) * | 1983-02-25 | 1984-09-05 | Ishikawajima Harima Heavy Ind Co Ltd | Grinding device of rolling roll |
US4488382A (en) * | 1983-04-29 | 1984-12-18 | Allis-Chalmers Corporation | Kiln ring grinding apparatus |
US4779384A (en) * | 1986-02-13 | 1988-10-25 | Harsco Corporation | Rail grinder |
US5441437A (en) * | 1993-02-18 | 1995-08-15 | Hulstedt; Bryan A. | Compliant constant-force follower device for surface finishing tool |
CN102426394A (en) * | 2011-08-17 | 2012-04-25 | 公安部第一研究所 | CT security inspection instrument delivery system |
GB201417861D0 (en) * | 2014-10-09 | 2014-11-26 | Rolls Royce Plc | Abrasive processing method |
US10300574B2 (en) * | 2014-10-24 | 2019-05-28 | Velasa Sports, Inc. | Skate blade sharpening system |
IT201800007999A1 (en) * | 2018-08-09 | 2020-02-09 | Viet Italia Srl | SANDING MACHINE FOR SANDING / SATIN FINISHING OF WOOD, METAL OR SIMILAR PANELS |
US11969851B2 (en) | 2020-07-31 | 2024-04-30 | Velasa Sports, Inc. | Skate blade sharpening system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2168596A (en) * | 1935-09-12 | 1939-08-08 | Gardner Machine Co | Control apparatus for grinding machines |
US2333978A (en) * | 1940-06-27 | 1943-11-09 | Gen Electric | Control system |
US2648176A (en) * | 1951-03-27 | 1953-08-11 | Houdaille Hershey Corp | Apparatus for polishing |
US3271909A (en) * | 1964-03-13 | 1966-09-13 | Carborundum Co | Grinding apparatus |
US3415017A (en) * | 1965-05-13 | 1968-12-10 | Zech Murray Corp | Apparatus for finishing workpieces under controlled pressures |
US3394501A (en) * | 1965-06-17 | 1968-07-30 | Carborundum Co | System for controlling grinding pressure |
-
1966
- 1966-08-09 US US571271A patent/US3524285A/en not_active Expired - Lifetime
-
1967
- 1967-07-11 DE DE19671652010 patent/DE1652010A1/en active Pending
- 1967-08-07 GB GB36175/67A patent/GB1147255A/en not_active Expired
- 1967-08-08 FR FR117262A patent/FR1533805A/en not_active Expired
- 1967-08-08 NO NO169306A patent/NO125308B/no unknown
- 1967-08-09 SE SE11286/67A patent/SE328213B/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104440472A (en) * | 2014-11-19 | 2015-03-25 | 德清德沃装饰材料有限公司 | Roller type wood veneer sanding machine |
CN105598796A (en) * | 2016-03-17 | 2016-05-25 | 余晓娜 | Wiredrawing, polishing and grinding system for metal plates |
Also Published As
Publication number | Publication date |
---|---|
DE1652010A1 (en) | 1971-02-11 |
SE328213B (en) | 1970-09-07 |
NO125308B (en) | 1972-08-21 |
FR1533805A (en) | 1968-07-19 |
US3524285A (en) | 1970-08-18 |
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