GB603668A - Improvements in apparatus for lapping part-spherical surfaces - Google Patents

Improvements in apparatus for lapping part-spherical surfaces

Info

Publication number
GB603668A
GB603668A GB2842145A GB2842145A GB603668A GB 603668 A GB603668 A GB 603668A GB 2842145 A GB2842145 A GB 2842145A GB 2842145 A GB2842145 A GB 2842145A GB 603668 A GB603668 A GB 603668A
Authority
GB
United Kingdom
Prior art keywords
shaft
spindle
axis
spherical
driving shaft
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
GB2842145A
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.)
Scophony Ltd
Original Assignee
Scophony 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 Scophony Ltd filed Critical Scophony Ltd
Priority to GB2842145A priority Critical patent/GB603668A/en
Publication of GB603668A publication Critical patent/GB603668A/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
    • B24B11/00Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

603,668. Lapping part-spherical concave and convex surfaces. SCOPHONY, Ltd., and ADAMS, A. E. Oct. 26, 1945, No. 28421. [Class 60] Apparatus for lapping part-spherical concave and convex surfaces, as e.g. optical lenses and mirrors or parts of mechanism such as ballraces, comprises two co-operating parts constituted by the lapping tool and a holder for the work-piece, a driving shaft, means on said shaft for causing one of said parts to execute both a rotation relative to said shaft about an axis other than the axis of said shaft and a gyration about the axis of said shaft, a strut rigid with the other of said parts and cooperating with a thrust bearing which provides a limited universal motion, means for applying an adjustable load to said thrust bearing, and means for preventing continuous rotation of said other part. A frame 10 is fixed on or incorporates a bench 1, in which is journalled a driving shaft 2, driven by belt and pulley 3. The upper end of the shaft carries a jaw 4 in which is a bearing housing 5 for a work spindle 6, the housing being angularly adjustable about a horizontal axis intersecting the axes of the driving shaft and spindle, screws 7 being provided to lock the housing in the jaw at any desired inclination of the spindle axis to the vertical. The spindle 6 has a planet frictionwheel 8, one edge of the periphery of which runs on a rubber-faced annular friction gear ring 9 coaxial with the driving shaft and vertically adjustable. The upper end of the spindle 6 has a mounting 13 of known type for a lens or a block of lenses under treatment. A cylindrical housing 14 in the upper part of the frame contains a plunger 15 downwardly urged by a compression spring 16 abutting a screw plug 17 ; the lower end of the plunger has a spherical cup engaging a ball 18 engaging a spherical cup in the upper end of a strut 19 rigid with the part-spherical lapping tool 20 ; an arm 21 extending laterally from the strut slidably engages a part of the frame to prevent the tool from rotating continuously. The lap and work may be interchanged.
GB2842145A 1945-10-26 1945-10-26 Improvements in apparatus for lapping part-spherical surfaces Expired GB603668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2842145A GB603668A (en) 1945-10-26 1945-10-26 Improvements in apparatus for lapping part-spherical surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2842145A GB603668A (en) 1945-10-26 1945-10-26 Improvements in apparatus for lapping part-spherical surfaces

Publications (1)

Publication Number Publication Date
GB603668A true GB603668A (en) 1948-06-21

Family

ID=10275355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2842145A Expired GB603668A (en) 1945-10-26 1945-10-26 Improvements in apparatus for lapping part-spherical surfaces

Country Status (1)

Country Link
GB (1) GB603668A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101745870B (en) * 2009-12-24 2011-05-18 宁波恒力液压股份有限公司 Plunger ball grinder
CN114505713A (en) * 2022-03-25 2022-05-17 常州亿精珠钢球有限公司 High-capacity charging tray device for horizontal ball polishing machine and charging method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101745870B (en) * 2009-12-24 2011-05-18 宁波恒力液压股份有限公司 Plunger ball grinder
CN114505713A (en) * 2022-03-25 2022-05-17 常州亿精珠钢球有限公司 High-capacity charging tray device for horizontal ball polishing machine and charging method

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