GB489240A - Improvements in or relating to work gripping and driving devices - Google Patents

Improvements in or relating to work gripping and driving devices

Info

Publication number
GB489240A
GB489240A GB339737A GB339737A GB489240A GB 489240 A GB489240 A GB 489240A GB 339737 A GB339737 A GB 339737A GB 339737 A GB339737 A GB 339737A GB 489240 A GB489240 A GB 489240A
Authority
GB
United Kingdom
Prior art keywords
work
rings
rod
sleeve
spindle
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
GB339737A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB339737A priority Critical patent/GB489240A/en
Publication of GB489240A publication Critical patent/GB489240A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/117—Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • B23B31/1175—Retention by friction only, e.g. using springs, resilient sleeves, tapers using elastomer rings or sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
    • B23B2270/20—Internally located features, machining or gripping of internal surfaces
    • B23B2270/205—Machining or gripping both internal and external surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

489,240. Chucks and mandrels. BRADLEY, W. Feb. 5, 1937, No. 3397. [Class 83 (iii)] A work gripping or driving device for imparting rotation or reciprocation or both movements to solid or hollow work-pieces comprises resilient rings which are expanded or contracted by axial pressure and which are mounted between driving washers or discs splined on or within the driving member. The rotary spindle H journalled and located axially in a bearing I by a nut G has a central opening of polygonal section to receive a similar rod A. One end of the rod is screwed to take a hand wheel B and the other end is provided with a head U, whilst an outer cap M is pinned thereto at N. Resilient rings R of rubber &c. are located within a work-piece T and further rings R<1> are located outside the work, washers Q, Q<1> being placed between the rings and splined to the rod A and cap M. Axial pressure on the rod A produced by rotating the hand wheel B and reacting on the spindle H through a spring C, washer D and sleeve F, compresses the rings against an abutment O acting on the spindle through pins L, thereby expanding rings R and contracting rings R<1> against the work to grip it internally and externally. The sleeve F is splined to the rod A, and a sprocket E through which the work is rotated engages the sleeve by a screw-thread and has axial clearance at W so that the driving torque, in either direction, can cause further axial movement of the rod A to increase the grip on the work. For gripping hollow work internally, the inner rings R only may be used, the cap M then being dispensed with and the end washer Q then abutting on a thrust collar which engages the spindle H, and for gripping solid work externally the outer rings only are used. Ball thrust bearings may be placed on each side of the sprocket E and the extent of the grip provided by the drive may be regulated by varying the pitch of the thread on the sleeve F and by varying the degree of friction of the sprocket on its end surfaces.
GB339737A 1937-02-05 1937-02-05 Improvements in or relating to work gripping and driving devices Expired GB489240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB339737A GB489240A (en) 1937-02-05 1937-02-05 Improvements in or relating to work gripping and driving devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB339737A GB489240A (en) 1937-02-05 1937-02-05 Improvements in or relating to work gripping and driving devices

Publications (1)

Publication Number Publication Date
GB489240A true GB489240A (en) 1938-07-22

Family

ID=9757559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB339737A Expired GB489240A (en) 1937-02-05 1937-02-05 Improvements in or relating to work gripping and driving devices

Country Status (1)

Country Link
GB (1) GB489240A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE869892C (en) * 1943-06-22 1953-03-09 Rudolf Spieth Jig
FR2475167A1 (en) * 1980-02-06 1981-08-07 Pont A Mousson DEVICE FOR DRIVING IN ROTATION OF A CYLINDRICAL PIECE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE869892C (en) * 1943-06-22 1953-03-09 Rudolf Spieth Jig
FR2475167A1 (en) * 1980-02-06 1981-08-07 Pont A Mousson DEVICE FOR DRIVING IN ROTATION OF A CYLINDRICAL PIECE
EP0033908A1 (en) * 1980-02-06 1981-08-19 Pont-A-Mousson S.A. Device for the rotational driving of a cylindrical piece

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