GB300061A - Improvements in centreless grinding machines - Google Patents

Improvements in centreless grinding machines

Info

Publication number
GB300061A
GB300061A GB584728A GB584728A GB300061A GB 300061 A GB300061 A GB 300061A GB 584728 A GB584728 A GB 584728A GB 584728 A GB584728 A GB 584728A GB 300061 A GB300061 A GB 300061A
Authority
GB
United Kingdom
Prior art keywords
work
holder
wheel
support
piece
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
GB584728A
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.)
Cincinnati Grinders Inc
Original Assignee
Cincinnati Grinders Inc
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 Cincinnati Grinders Inc filed Critical Cincinnati Grinders Inc
Priority to GB584728A priority Critical patent/GB300061A/en
Publication of GB300061A publication Critical patent/GB300061A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/18Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

300,061. Hughes, V. A. B., (Cincinnati Grinders, Inc.). Feb. 24, 1928. Centreless grinding; guides and rests. - A centreless grinding machine is adapted for producing accurately concentric but differentlyshaped surfaces on work-pieces, such as the cylindrical body and tapered shank of a twist drill. The fluted body N, Fig. 3, of a twist drill is produced in a centreless grinding machine in the usual manner and is then gripped in a split collet 13 clamped by a hand-wheel 15 within a work-holder 10 having a cylindrical portion 11 concentric with the collet. The holder is rotatably mounted on the usual work-support M, Fig. 2, by means of a half-bearing 17 and a blade 18 having an upper inclined surface engaging the portion 11, a roller 22 being pivotally mounted on the support, and urged by a spring so as to force the portion 11 against the regulating wheel D. In operation, several work-holders are used in turn, and with a work-piece mounted therein being placed on the support M while the latter is raised by means of a hand operated pinion I engaging a rack on a controlling plunger G to which the support is secured, the roller 22 being moved to one side by a hand lever 28 to allow admission of the holder. On lowering the support the holder is rotated by contact with the regulating wheel D and a grinding wheel E, Fig. 3, which is staggered with regard to the wheel D, is fed in by its slide to cut the correct taper. The wheel E may be dressed to the required taper or alternatively its slide may be inclined. When a work-piece has been completed the holder is removed from the machine and replaced by another holder with a work-piece to be operated upon whilst the previous holder is having its work-piece renewed.
GB584728A 1928-02-24 1928-02-24 Improvements in centreless grinding machines Expired GB300061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB584728A GB300061A (en) 1928-02-24 1928-02-24 Improvements in centreless grinding machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB584728A GB300061A (en) 1928-02-24 1928-02-24 Improvements in centreless grinding machines

Publications (1)

Publication Number Publication Date
GB300061A true GB300061A (en) 1928-11-08

Family

ID=9803735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB584728A Expired GB300061A (en) 1928-02-24 1928-02-24 Improvements in centreless grinding machines

Country Status (1)

Country Link
GB (1) GB300061A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111673403A (en) * 2020-05-29 2020-09-18 贵州泰和超硬工具股份有限公司 Hard alloy twist drill rod grinding process
CN118143310A (en) * 2024-04-15 2024-06-07 铭宇科技(娄底)有限公司 Clamping center device for machining rotating surface of compressor body and application method of clamping center device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111673403A (en) * 2020-05-29 2020-09-18 贵州泰和超硬工具股份有限公司 Hard alloy twist drill rod grinding process
CN118143310A (en) * 2024-04-15 2024-06-07 铭宇科技(娄底)有限公司 Clamping center device for machining rotating surface of compressor body and application method of clamping center device

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