GB1155963A - Improvements in or relating to Grinding Machines. - Google Patents

Improvements in or relating to Grinding Machines.

Info

Publication number
GB1155963A
GB1155963A GB20174/65A GB2017465A GB1155963A GB 1155963 A GB1155963 A GB 1155963A GB 20174/65 A GB20174/65 A GB 20174/65A GB 2017465 A GB2017465 A GB 2017465A GB 1155963 A GB1155963 A GB 1155963A
Authority
GB
United Kingdom
Prior art keywords
current
wheel
workpiece
grinding
grinding wheel
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
GB20174/65A
Inventor
John Cyril Jones
John Derick Barclay
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.)
Churchill Machine Tool Co Ltd
Original Assignee
Churchill Machine Tool Co Ltd
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 Churchill Machine Tool Co Ltd filed Critical Churchill Machine Tool Co Ltd
Priority to GB20174/65A priority Critical patent/GB1155963A/en
Publication of GB1155963A publication Critical patent/GB1155963A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

1,155,963. Grinding. CHURCHILL MACHINE TOOL CO. Ltd. 8 Aug., 1966 [13 May, 1965], No. 20174/65. Heading B3D. [Also in Division G3] A grinding machine of the type in which a predetermined fall in the grinding wheel motor current produces an infeed of the grinding wheel relative to a workpiece until such reduced current is increased and restored to a predetermined value includes circuit means adapted to control the longitudinal traverse of the grinding wheel relative to the workpiece in response to such an increase in current. Thus, with a workpiece such as a roll has been worn in the middle there is a gradual fall in the grinding wheel motor current as the wheel traverses from the end of the roll to the middle of lesser diameter; when the current has fallen a predetermined amount the control circuit operates causing the wheel to move further in towards the workpiece thus producing an increase in the load current. This increase in current is utilized to stop the longitudinal traverse of the wheel, and then to reverse the direction of traverse. The full sequence of operations required to control the traverse of the wheel first to grind the tailstock portion of the roll and then the workhead portion, whilst maintaining the load on the grinding wheel substantially constant, is described in the Specification with reference to Figs. 1 to 4 of the drawings (not shown) which depict a suitable relay circuit for effecting the desired control.
GB20174/65A 1965-05-13 1965-05-13 Improvements in or relating to Grinding Machines. Expired GB1155963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20174/65A GB1155963A (en) 1965-05-13 1965-05-13 Improvements in or relating to Grinding Machines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20174/65A GB1155963A (en) 1965-05-13 1965-05-13 Improvements in or relating to Grinding Machines.

Publications (1)

Publication Number Publication Date
GB1155963A true GB1155963A (en) 1969-06-25

Family

ID=10141616

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20174/65A Expired GB1155963A (en) 1965-05-13 1965-05-13 Improvements in or relating to Grinding Machines.

Country Status (1)

Country Link
GB (1) GB1155963A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146457A (en) * 1983-09-09 1985-04-17 Honda Motor Co Ltd Control of grinding machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146457A (en) * 1983-09-09 1985-04-17 Honda Motor Co Ltd Control of grinding machine

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