US2706327A - Holder for a tool blade - Google Patents

Holder for a tool blade Download PDF

Info

Publication number
US2706327A
US2706327A US395908A US39590853A US2706327A US 2706327 A US2706327 A US 2706327A US 395908 A US395908 A US 395908A US 39590853 A US39590853 A US 39590853A US 2706327 A US2706327 A US 2706327A
Authority
US
United States
Prior art keywords
blade
holder
hole
bolt
clamping
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 - Lifetime
Application number
US395908A
Other languages
English (en)
Inventor
Bodin Eric Gunnar
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
Application granted granted Critical
Publication of US2706327A publication Critical patent/US2706327A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B23B27/1666—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 clamped by a clamping member acting almost perpendicularly on chip-forming plane
    • B23B27/167—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 clamped by a clamping member acting almost perpendicularly on chip-forming plane in which the clamping member breaks the chips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/11—Cutters, for shaping including chip breaker, guide or deflector detachable from tool and tool holder
    • Y10T407/116—Attached to or integral with tool clamping jaw
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2222—Tool adjustable relative to holder
    • Y10T407/2238—Tool adjustable relative to holder by adjustable or replaceable stop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
    • Y10T407/2286—Resiliently biased clamp jaw
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
    • Y10T407/2292—Slidable jaw

Definitions

  • the present invention relates to a holder for a tool blade, particularly to a holder for a cutting blade used in a lathe.
  • Holders of this type are somewhat inconvenient in use as the holes in the holder and the blade end must be accurately matched before the screws can be inserted. Furthermore, the number of times a blade can be reground for sharpening is severely limited so that the blade must be discarded without using the major portion of the blade.
  • One of the objects of the present invention is to provide a novel and improved holder for a tool blade such as a cutting blade which permits a rapid and convenient attachment and detachment of the blade and which securely holds the blade in position.
  • Another object of the invention is to provide a novel and improved holder which permits a regrinding of the blade a far greater number of times than convential blade holders thereby allowing a utilization of the blade to a much greater extent than heretofore possible.
  • Still another object is to provide a novel and improved tool holder in which the clamping means retaining the blades include a member constituting a chip breaker.
  • Fig. 1 is a sectional view of blade holder according to the invention.
  • Fig. 2 is a sectional view of a modification of the blade holder.
  • a holder comprising a support member in which a recess 12 for a blade 2 is formed.
  • This blade may be visualized as a cutting blade made of a hard metal or tungsten carbide.
  • the support member is further formed with a transverse bore or hole 13 disposed near recess 12.
  • a bolt member 14 is fitted axially slidable in said hole.
  • This bolt member is secured to or integral with a generally plate-shaped clamping member 3 which together with the bottom of recess 12 defines a clamping space for the blade.
  • a loaded spring 6 fitted between bolt 14 and the bottom of hole 13 which may be completely closed or shouldered at 15 biases bolt 14 and with it clamping plate 3 in the direction away from blade 2.
  • Bolt 14 is formed with a lateral recess 16 in which is extended one arm of a two-arm lever 4 pivotal about a pivot point 17.
  • This lever is shown as being disposed within a second recess or hole 18 formed within the support member transversely to hole 13.
  • the other arm of lever 4 ends in a slanted bearing surface 19 which coacts with a bearing surface 20 at the end of a setting device 5.
  • This setting device is shown as a headed screw threaded into an extension 18' of hole or recess 18.
  • the holder finally comprises a plate 7 secured to clamping plate 3 for instance by soldering or integral therewith.
  • This plate is made of a very hard metal or tungsten carbide and serves as a chip breaker.
  • the blade holder according to Fig. 2 is similar in principle to the blade holder according to Fig. 1. Accordingly, corresponding parts are designated by the same reference numerals though primed.
  • a bolt member 8 is fitted axially slidable in transverse hole 13.
  • Plates 3' and 7 can be tightly clamped to bolt 8 by tightening a lock nut 11.
  • the adjustability of the angular position of plate 7 relative to bolt 8 and hence also relative to blade 2 permits to set the chip breaker for an angle best suited to the cut for which the blade has been designed or set.
  • Support member 1 is formed with a second transverse hole or bore 21 disposed parallel to bore 13 and opening in the bottom of recess 12.
  • a bolt 9 is inserted in bore or hole 21 so that the bolt is axially displaceable but preferably secured against rotation.
  • the end of bolt 9 is formed with or is secured to a slanted bearing surface 22. This bearing surface is so positioned that it is engageable with the inner edge of a blade 2 inserted in the holder.
  • a screw 10 threaded in bore or hole 21 serves to position bolt 9 within the hole and to move the slanted surface 22 into the clamping space defined between clamping plate 3 and the bottom of recess 12.
  • Fig. 2 permits to compensate for the reduction in the length of the blade end by tightening screw 10 whereby the slanted surface 22 is forced to abut against the rear edge of the blade thus efiectively preventing a rearward displacement of the blade within the recess.
  • bolt 9 and its slanted surface 22 permit a compensation of variations of the blade length in the holder within wide limits. can be used to the fullest extent and also that blades having different lengths can be inserted in the same holder.
  • a holder for a tool blade comprising a blade support member, clamping means for releasably clamping the blade between said support member and said clamping means, said support member having a hole therethrough, a bolt member secured to the clamping means and slidably fitted in said hole for displacement of the clamping means in unison with the bolt member, a twoarm lever pivotally supported by said support member, one arm of said lever operatively engaging said bolt member for axial displacement thereof, and an adjustable setting means coacting with the other arm of said lever for pivoting the lever and retaining the same and said bolt member in a position in which a blade is clamped between the clamping means and the support member.
  • a holder according to claim 1 wherein said support member has a second hole issuing in the first hole transversely thereto, and wherein the said two-arm lever is pivotally mounted within said second hole, the said setting means being operable from the outside of said support member.
  • a device wherein the said setting means and the respective arm of the two-arm lever each has a bearing surface, the said bearing surfaces coacting with each other so as to effect pivoting of said lever upon adjustment of said setting means.
  • a holder according to claim 4 wherein the said coacting bearing surfaces are in form of slanted surfaces in engagement with each other, and wherein the said setting means are adjustable for varying the distance between the pivot point of said lever and the setting means thereby effecting pivoting of the lever by varying said distance.
  • a holder according to claim 1 wherein the bolt member is rotatable within said hole, and wherein the said clamping means comprise a plate-shaped member secured to the bolt member for rotation in unison therewith relative to the support member, the said plateshaped member and a respective outer surface of the support member forming two jaws for clamping the blade therebetween.
  • a holder according to claim 8 wherein the said bolt member is formed with a stub protruding from the support member, the said plate-shaped member being rotatably fitted upon said stub, and wherein a locking nut is provided for securing the plate-shaped member on said stub in a selected angular position relative to the support member.
  • a holder according to claim 1 wherein the said support member has a second hole therethrough disposed parallel to the first hole, and wherein a second bolt member is fitted in said second hole axially adjustable therein, one end of said second bolt member forming a bearing surface positioned to abut against the inner dge of a blade clamped in the clamping space defined between said clamping means and said support member.
  • a holder according to claim 10 wherein said bearing surface of the second bolt member extends into said clamping space and is slanted so as to form an abutment for the inner edge of a clamped blade for preventing displacement of the blade within said clamping space.
  • a holder according to claim 12, wherein the said second setting means comprise a screw member threaded in said support member on the side thereof opposite to the clamping space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
US395908A 1952-12-05 1953-12-03 Holder for a tool blade Expired - Lifetime US2706327A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE320436X 1952-12-05
SE140353X 1953-03-14

Publications (1)

Publication Number Publication Date
US2706327A true US2706327A (en) 1955-04-19

Family

ID=26655964

Family Applications (1)

Application Number Title Priority Date Filing Date
US395908A Expired - Lifetime US2706327A (en) 1952-12-05 1953-12-03 Holder for a tool blade

Country Status (7)

Country Link
US (1) US2706327A (ja)
BE (1) BE524788A (ja)
CH (1) CH320436A (ja)
DE (1) DE1008547B (ja)
FR (1) FR1098052A (ja)
GB (1) GB737544A (ja)
NL (2) NL183279B (ja)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862285A (en) * 1955-09-23 1958-12-02 Lloyd W Miller Quick release tool holder
US2903781A (en) * 1955-07-14 1959-09-15 Arthur F Hudson Metal cutting tool and holder
US2903784A (en) * 1956-10-08 1959-09-15 Carl A Billman Milling cutter
US2911707A (en) * 1957-05-29 1959-11-10 Sandvikens Jernverks Ab Tool holder
US2955349A (en) * 1958-03-13 1960-10-11 Gen Electric Cutting tool
US3400439A (en) * 1966-09-15 1968-09-10 Warner Swasey Co Cutter holders
EP1802414A2 (en) * 2005-06-08 2007-07-04 Charles A. Van Horssen Quick change holder for cutting tool
WO2014118977A1 (ja) * 2013-02-01 2014-08-07 株式会社日立製作所 インサート自動着脱機構を有する切削工具、およびインサート自動交換装置
CN105964750A (zh) * 2016-06-27 2016-09-28 和和机械（张家港）有限公司 管端成型机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1217741B (de) * 1960-12-10 1966-05-26 Stockholms Hardmetall Manufakt Spannabhebendes Werkzeug mit auswechselbarem Schneidkoerper
DE9206554U1 (de) * 1992-05-14 1993-09-16 Balzat Werkzeugmaschinenfabrik GmbH & Co. KG, 5014 Kerpen Nutstoßwerkzeug

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE309007C (ja) * 1915-07-10
US2062607A (en) * 1935-05-29 1936-12-01 O K Tool Co Inc Streamlined bit clamp and holder
US2063129A (en) * 1934-07-31 1936-12-08 Apex Tool & Cutter Company Inc Drawbolt tool holder and bit
US2357918A (en) * 1944-02-19 1944-09-12 Otto F Trippler Toolholder
GB607417A (en) * 1946-02-04 1948-08-31 Lloyd Ltd Richard Improvements relating to lathe and like tool-holders
FR968404A (fr) * 1948-06-23 1950-11-27 Sncf Brise-copeau rapporté pour outil de coupe
US2583880A (en) * 1946-01-07 1952-01-29 Gisholt Machine Co Clamp

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166826A (en) * 1936-12-10 1939-07-18 Carboloy Company Inc Chip controller and breaker
FR989306A (fr) * 1949-04-22 1951-09-07 Outil à plaquette interchangeable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE309007C (ja) * 1915-07-10
US2063129A (en) * 1934-07-31 1936-12-08 Apex Tool & Cutter Company Inc Drawbolt tool holder and bit
US2062607A (en) * 1935-05-29 1936-12-01 O K Tool Co Inc Streamlined bit clamp and holder
US2357918A (en) * 1944-02-19 1944-09-12 Otto F Trippler Toolholder
US2583880A (en) * 1946-01-07 1952-01-29 Gisholt Machine Co Clamp
GB607417A (en) * 1946-02-04 1948-08-31 Lloyd Ltd Richard Improvements relating to lathe and like tool-holders
FR968404A (fr) * 1948-06-23 1950-11-27 Sncf Brise-copeau rapporté pour outil de coupe

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903781A (en) * 1955-07-14 1959-09-15 Arthur F Hudson Metal cutting tool and holder
US2862285A (en) * 1955-09-23 1958-12-02 Lloyd W Miller Quick release tool holder
US2903784A (en) * 1956-10-08 1959-09-15 Carl A Billman Milling cutter
US2911707A (en) * 1957-05-29 1959-11-10 Sandvikens Jernverks Ab Tool holder
US2955349A (en) * 1958-03-13 1960-10-11 Gen Electric Cutting tool
US3400439A (en) * 1966-09-15 1968-09-10 Warner Swasey Co Cutter holders
EP1802414A2 (en) * 2005-06-08 2007-07-04 Charles A. Van Horssen Quick change holder for cutting tool
EP1802414A4 (en) * 2005-06-08 2011-05-04 Horssen Charles A Van RAPID REPLACEMENT TOOL HOLDER FOR CUTTING TOOL
WO2014118977A1 (ja) * 2013-02-01 2014-08-07 株式会社日立製作所 インサート自動着脱機構を有する切削工具、およびインサート自動交換装置
JP5878993B2 (ja) * 2013-02-01 2016-03-08 株式会社日立製作所 インサート自動着脱機構を有する切削工具、およびインサート自動交換装置
JPWO2014118977A1 (ja) * 2013-02-01 2017-01-26 株式会社日立製作所 インサート自動着脱機構を有する切削工具、およびインサート自動交換装置
CN105964750A (zh) * 2016-06-27 2016-09-28 和和机械（张家港）有限公司 管端成型机

Also Published As

Publication number Publication date
NL183279B (nl)
CH320436A (de) 1957-03-31
NL88876C (ja)
FR1098052A (fr) 1955-07-18
BE524788A (ja)
GB737544A (en) 1955-09-28
DE1008547B (de) 1957-05-16

Similar Documents

Publication Publication Date Title
US2706327A (en) Holder for a tool blade
US7156588B2 (en) Cutting head for rotary cutting tool
US3125798A (en) figure
US3591305A (en) Reamer with replaceable cutting blade
US3289272A (en) Cutting tools with throw-away inserts
US8529166B2 (en) Cutting tool and cutting insert therefor
US2895356A (en) Deburring tool
US3977079A (en) Knife having easily removable blade
US2842233A (en) Cutting blade lock
CS241137B2 (en) Single-edge reamer
US3500522A (en) Cutoff tool holder
PL96415B1 (pl) Noz do obrobki skrawaniem zwlaszcza do odcinania i podtaczania
US4147463A (en) Adjustable deburring tool
US6058824A (en) Cutter holder for accommodating wedge-shaped microtome cutters
US4035887A (en) Cutting tools
US2395570A (en) Cutting tool
US3002405A (en) Cutting tools
US3296897A (en) Boring bars
US2912744A (en) Tool bit holder
US2450365A (en) Toolholder
US3216086A (en) Lathe or like tools
US2270387A (en) Cutting tool
US3189975A (en) Cutting tool holder
US2508437A (en) Inserted blade cutter
SE431071B (sv) Verktyg for spanavskiljande bearbetning av insidan pa ett arbetsstycke