GB1499812A - Machine tools - Google Patents

Machine tools

Info

Publication number
GB1499812A
GB1499812A GB1603974A GB1603974A GB1499812A GB 1499812 A GB1499812 A GB 1499812A GB 1603974 A GB1603974 A GB 1603974A GB 1603974 A GB1603974 A GB 1603974A GB 1499812 A GB1499812 A GB 1499812A
Authority
GB
United Kingdom
Prior art keywords
cam
grinder
computer
spindle
comparator
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
Application number
GB1603974A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cranfield Institute of Technology
Original Assignee
Cranfield Institute of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cranfield Institute of Technology filed Critical Cranfield Institute of Technology
Priority to GB1603974A priority Critical patent/GB1499812A/en
Priority to CH445575A priority patent/CH588330A5/xx
Priority to DE19752515625 priority patent/DE2515625A1/en
Publication of GB1499812A publication Critical patent/GB1499812A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/182—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by the machine tool function, e.g. thread cutting, cam making, tool direction control
    • G05B19/184—Generation of cam-like surfaces
    • 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
    • B24B17/00—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor
    • B24B17/10—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving electrical transmission means only, e.g. controlled by magnetic tape
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/33—Director till display
    • G05B2219/33099—Computer numerical control [CNC]; Software control [SWC]
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37345—Dimension of workpiece, diameter
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45159—Dressing, sharpening, trueing tool
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45161—Grinding machine
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49177—Runout, eccentricity, unbalance of tool or workpiece

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

1499812 Machine tool control system CRANFIELD INSTITUTE OF TECHNOLOGY 9 April 1975 [10 April 1974] 16039/74 Heading G3N A control system controls the position of a tool, e.g. a grinder 22, acting on a rotating workpiece 10, e.g. a cam ring or an external cam, forming part of a fuel injection pump for an internal combustion engine, and compensates for wear of the grinder. The grinder 22 is mounted on the spindle of a grinding head 1 movable at right angles to the cam axis using electric servo controlled motor 2 with tacho 4. Datum sensor 35 defines a data position for head 1 from which grinder movement units are defined by photosensors and the head (wheel) position is sensed by optical linear transducer 5, phase divider 6 and counter 7 to feed one input of comparator 8. The other comparator input receives a desired grinder position from mini computer 18 and the comparator output (difference) is converted to analog in unit 9 and used to reduce the difference. The workpiece 10 is rotated by motor 11 controlled by servo-amplifier 12 using velocity feedback from tacho 13. The angular position of spindle 15 (supporting the cam) is sensed by transducer 16 controlling circuit 17 which compensates for spindle eccentricity. The spindle is advanced rightwards from a rest position, defined by sensor 27, on carriage 26 using servomotor tacho drive 28 and photosensors 29, 30 sense the grinding stroke limits. Sensors 32, 33 are used for grinder dressing with vane 34 and swinging arm 45 carrying tool 46 and sensor 47. The computer 18 holds the desired cam shape data and cam follower 20 measures actual cam profile and feeds it to computer 18. The computer selects the signal to comparator 8 in depedence on the cam angular setting and the machined profile measured by follower 20 and shuts down the machine using logic 24 if the grinder wear exceeds a predetermined limit. A datum face 43 is provided with follower 20, controls 40, 37 and sensors 38-42. D/A converter 25 compensates for velocity lag errors. A computer program for controlling the system Figs. 3-6 (not shown), together with the mathematics of the grinding operation, are described in some detail.
GB1603974A 1974-04-10 1974-04-10 Machine tools Expired GB1499812A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1603974A GB1499812A (en) 1974-04-10 1974-04-10 Machine tools
CH445575A CH588330A5 (en) 1974-04-10 1975-04-08
DE19752515625 DE2515625A1 (en) 1974-04-10 1975-04-10 CONTROL DEVICE FOR MACHINE TOOLS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1603974A GB1499812A (en) 1974-04-10 1974-04-10 Machine tools

Publications (1)

Publication Number Publication Date
GB1499812A true GB1499812A (en) 1978-02-01

Family

ID=10070042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1603974A Expired GB1499812A (en) 1974-04-10 1974-04-10 Machine tools

Country Status (3)

Country Link
CH (1) CH588330A5 (en)
DE (1) DE2515625A1 (en)
GB (1) GB1499812A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646596A (en) * 1980-07-12 1987-03-03 Edwards Walter C Machine tools
US9498231B2 (en) 2011-06-27 2016-11-22 Board Of Regents Of The University Of Nebraska On-board tool tracking system and methods of computer assisted surgery
US10105149B2 (en) 2013-03-15 2018-10-23 Board Of Regents Of The University Of Nebraska On-board tool tracking system and methods of computer assisted surgery
US10219811B2 (en) 2011-06-27 2019-03-05 Board Of Regents Of The University Of Nebraska On-board tool tracking system and methods of computer assisted surgery
CN109667750A (en) * 2018-12-14 2019-04-23 北京卫星制造厂有限公司 A kind of multiaxis collaboration high-precision liquid phase method for controlling pump based on online compensation
CN112405108A (en) * 2020-09-17 2021-02-26 山东理工大学 Method for realizing ultra-precise parallel linear microstructure machining by using common machine tool
US11116574B2 (en) 2006-06-16 2021-09-14 Board Of Regents Of The University Of Nebraska Method and apparatus for computer aided surgery

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646596A (en) * 1980-07-12 1987-03-03 Edwards Walter C Machine tools
US11116574B2 (en) 2006-06-16 2021-09-14 Board Of Regents Of The University Of Nebraska Method and apparatus for computer aided surgery
US9498231B2 (en) 2011-06-27 2016-11-22 Board Of Regents Of The University Of Nebraska On-board tool tracking system and methods of computer assisted surgery
US10080617B2 (en) 2011-06-27 2018-09-25 Board Of Regents Of The University Of Nebraska On-board tool tracking system and methods of computer assisted surgery
US10219811B2 (en) 2011-06-27 2019-03-05 Board Of Regents Of The University Of Nebraska On-board tool tracking system and methods of computer assisted surgery
US10105149B2 (en) 2013-03-15 2018-10-23 Board Of Regents Of The University Of Nebraska On-board tool tracking system and methods of computer assisted surgery
CN109667750A (en) * 2018-12-14 2019-04-23 北京卫星制造厂有限公司 A kind of multiaxis collaboration high-precision liquid phase method for controlling pump based on online compensation
CN109667750B (en) * 2018-12-14 2020-08-14 北京卫星制造厂有限公司 Multi-axis cooperative high-precision liquid-phase pump control method based on online compensation
CN112405108A (en) * 2020-09-17 2021-02-26 山东理工大学 Method for realizing ultra-precise parallel linear microstructure machining by using common machine tool

Also Published As

Publication number Publication date
DE2515625A1 (en) 1975-10-30
CH588330A5 (en) 1977-05-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940409