GB350706A - Improvements in or relating to turning, planing and like tools - Google Patents

Improvements in or relating to turning, planing and like tools

Info

Publication number
GB350706A
GB350706A GB1656130A GB1656130A GB350706A GB 350706 A GB350706 A GB 350706A GB 1656130 A GB1656130 A GB 1656130A GB 1656130 A GB1656130 A GB 1656130A GB 350706 A GB350706 A GB 350706A
Authority
GB
United Kingdom
Prior art keywords
pin
cutter
wedging
holder
eccentric
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
GB1656130A
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.)
English Steel Corp Ltd
Original Assignee
English Steel Corp 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 English Steel Corp Ltd filed Critical English Steel Corp Ltd
Priority to GB1656130A priority Critical patent/GB350706A/en
Publication of GB350706A publication Critical patent/GB350706A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1614—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/08—Cutting tools with blade- or disc-like main parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/04—Overall shape
    • B23B2200/0404—Hexagonal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/08—Rake or top surfaces
    • B23B2200/083—Rake or top surfaces curved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/12—Side or flank surfaces
    • B23B2200/123—Side or flank surfaces curved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/20—Top or side views of the cutting edge
    • B23B2200/202—Top or side views of the cutting edge with curved cutting edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2205/00—Fixation of cutting inserts in holders
    • B23B2205/04—Fixation screws, bolts or pins of particular form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2205/00—Fixation of cutting inserts in holders
    • B23B2205/08—Fixation of cutting inserts in holders using an eccentric

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

350,706. Tools and tool-holders. ENGLISH STEEL CORPORATION, Ltd. and ARCHER, J., Vickers Works, Sheffield. May 29, 1930, No. 16561. [Class 83 (iii).] In a turning, planing, or like tool of the type in which a cutter 21 is secured in a holder 24 by means of a pin or the like, the locking pressure is exerted against the undercut wall or shoulder 23 of the holder by means of a wedging pin having parts 25, 26 which are eccentric to each other and which engage respectively with holes 28, 29 in the holder and the cutter. The wedging pin is preferably made so that its two eccentric portions have a common generator 30 which, when the part of the cutter below the waist 22 engages the shoulder 23, is located opposite the said shoulder, the cutter being firmly locked by rotating the wedging pin, by means of its head 27 in either direction. The wedging pin may be marked to indicate the position of the common generator of the two eccentric portions. In a modification, Fig. 4, the invention is applied to a cutter having a single cutting point. In a further modification, Figs. 6 and 8, wherein the cutting pressure is transverse to the axis of the wedging pin, the pin is supported against shearing strains by providing the cutter with a wedge-shaped extension which engages within a wedge-shaped recess 32 in the holder so that when the wedging pin is rotated in the direction indicated by the arrow, Fig. 6, the cutter extension is forced along the recess 32 thus relieving the wedging pin of shear stress. In another modification, Fig. 13, the wedging pin may be inserted through a larger hole in the cutter into a smaller hole in the holder, and in this case the common generator 30 is located adjacent the shoulder 23 before the locking pressure is applied. In other modifications the two eccentric parts of the pin have no common generator. The wedging pin may be made in two interengaging parts and in this case the eccentric holes 28, 29 may be of the same diameter. Since only part of the cylindrical surface of the holes and the pin is used in applying the locking pressure the non- effective parts of such surfaces may be of other than cylindrical form. Specification 320,809, [Class 83 (iii), Metals, Cutting], is referred to.
GB1656130A 1930-05-29 1930-05-29 Improvements in or relating to turning, planing and like tools Expired GB350706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1656130A GB350706A (en) 1930-05-29 1930-05-29 Improvements in or relating to turning, planing and like tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1656130A GB350706A (en) 1930-05-29 1930-05-29 Improvements in or relating to turning, planing and like tools

Publications (1)

Publication Number Publication Date
GB350706A true GB350706A (en) 1931-06-18

Family

ID=10079525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1656130A Expired GB350706A (en) 1930-05-29 1930-05-29 Improvements in or relating to turning, planing and like tools

Country Status (1)

Country Link
GB (1) GB350706A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598581A (en) * 1948-09-04 1952-05-27 Kennametal Inc Cutting tool
US3097417A (en) * 1957-10-25 1963-07-16 Tool holder with replaceable tip
US3142110A (en) * 1959-04-30 1964-07-28 Hertel Karl Cutting tool for lathes and similar machines
US3173191A (en) * 1962-10-10 1965-03-16 Wickman Wimet Ltd Tool holders for use with detachable inserts
US3341919A (en) * 1963-08-01 1967-09-19 Futurmill Inc Tool holder arrangement
EP0947268A2 (en) * 1998-03-31 1999-10-06 BÖHLERIT G.m.b.H. & Co. KG Cutting insert for machining tools
CN103920898A (en) * 2014-05-09 2014-07-16 苏州勤美达精密机械有限公司 Hexagonal turning tool
CN104588703A (en) * 2014-12-01 2015-05-06 苏州勤美达精密机械有限公司 Positive rake angle type hexagonal blade
US10583495B1 (en) * 2018-09-17 2020-03-10 Iscar, Ltd. Swiss turning insert, swiss tool holder and assembly
EP4108365A1 (en) * 2021-06-25 2022-12-28 Tungaloy Corporation Cutting insert

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598581A (en) * 1948-09-04 1952-05-27 Kennametal Inc Cutting tool
US3097417A (en) * 1957-10-25 1963-07-16 Tool holder with replaceable tip
US3142110A (en) * 1959-04-30 1964-07-28 Hertel Karl Cutting tool for lathes and similar machines
US3173191A (en) * 1962-10-10 1965-03-16 Wickman Wimet Ltd Tool holders for use with detachable inserts
US3341919A (en) * 1963-08-01 1967-09-19 Futurmill Inc Tool holder arrangement
EP0947268A2 (en) * 1998-03-31 1999-10-06 BÖHLERIT G.m.b.H. & Co. KG Cutting insert for machining tools
EP0947268A3 (en) * 1998-03-31 2002-10-23 BÖHLERIT G.m.b.H. & Co. KG Cutting insert for machining tools
CN103920898A (en) * 2014-05-09 2014-07-16 苏州勤美达精密机械有限公司 Hexagonal turning tool
CN104588703A (en) * 2014-12-01 2015-05-06 苏州勤美达精密机械有限公司 Positive rake angle type hexagonal blade
US10583495B1 (en) * 2018-09-17 2020-03-10 Iscar, Ltd. Swiss turning insert, swiss tool holder and assembly
EP4108365A1 (en) * 2021-06-25 2022-12-28 Tungaloy Corporation Cutting insert
US11911827B2 (en) 2021-06-25 2024-02-27 Tungaloy Corporation Cutting insert

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