US1681675A - Rotary cutter - Google Patents

Rotary cutter Download PDF

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Publication number
US1681675A
US1681675A US30782A US3078225A US1681675A US 1681675 A US1681675 A US 1681675A US 30782 A US30782 A US 30782A US 3078225 A US3078225 A US 3078225A US 1681675 A US1681675 A US 1681675A
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US
United States
Prior art keywords
blade
slot
wedge
cutter
rotary cutter
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
US30782A
Inventor
Frank P Miller
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Individual
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Publication date
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Priority to US30782A priority Critical patent/US1681675A/en
Application granted granted Critical
Publication of US1681675A publication Critical patent/US1681675A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/24—Securing arrangements for bits or teeth or cutting inserts adjustable
    • B23C5/2472—Securing arrangements for bits or teeth or cutting inserts adjustable the adjusting means being screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/2265—Securing arrangements for bits or teeth or cutting inserts by means of a wedge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/24—Securing arrangements for bits or teeth or cutting inserts adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/24—Securing arrangements for bits or teeth or cutting inserts adjustable
    • B23C5/2462—Securing arrangements for bits or teeth or cutting inserts adjustable the adjusting means being oblique surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/24—Securing arrangements for bits or teeth or cutting inserts adjustable
    • B23C5/2468—Securing arrangements for bits or teeth or cutting inserts adjustable the adjusting means being serrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • B23D77/02—Reamers with inserted cutting edges
    • B23D77/04—Reamers with inserted cutting edges with cutting edges adjustable to different diameters along the whole cutting length
    • B23D77/042—Reamers with inserted cutting edges with cutting edges adjustable to different diameters along the whole cutting length by means of oblique planes
    • 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
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1908—Face or end mill
    • Y10T407/1912—Tool adjustable relative to holder
    • 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
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1928—Tool adjustable relative to holder
    • 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
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1934—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/1938—Wedge clamp element
    • 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/86—Tool-support with means to permit positioning of the Tool relative to support
    • Y10T408/885—Tool-support with means to permit positioning of the Tool relative to support including tool-holding clamp and clamp actuator

Definitions

  • This invention relates to rotary cutters such as milling cutters, reamers, tool holders for lathes, counterbores and the like, and has for an important object the provision of simple and easily adjusted means for holding the blades rigidly in place during the use of the same.
  • the invention forming the subject of this application aims to provide a rotary cutter in which the blades are securely held against endwise and edgewise shifting by the simple adjustment of a set screw for each blade, the setsCrew being at all times accessible for engagement by a screw-driver or other tool.
  • Figure 1 is a fragmentary .perspective of a milling cutter Aembodying the invention
  • Figure 2 is a detail vertical sectional view through the same
  • Figure 3 is a group perspective illustrating a blade and the holding means therefor
  • Figure l is a detail sectional view taken on line 4--4 of Figure 2;
  • Figure 5 is a side elevation of a reamer embodying the invention.
  • the numeral 10 designates a millin cutter body provided with an annular series of slots 11 for the reception of blades 12 and wedge blocks 14.
  • Figure 1 plainl illustrates that one side face of each bla e 12 and the adjacent wall of the groove or slot 11 is provided' with angularly extending, interfitting teeth or serrations 16.
  • Figures 1 and 3 illustrate that the tapered wedge block 14 is provided intermediate the ends thereof with a transverse rib or boss 18 inu teriorly threaded for the reception of an adjusting screw 20.
  • the adjusting screw 2O is rovided at the inner end thereof with a reriluced contact portion' 22 which bears against' the inner end wall of a groove 26 and thereby forces the tapered wedge block 14 outwardly into binding engagementwith the blade. It will be seen that when the tapered wedge block 14 is forced outwardly n 1,681,675 PATENT(l OFFICE.
  • the block 14 is held against endwise movement by the boss 18 which is snugly received in the groove 26 in one side wall of the slot. This also greatly expedites the assembling of the cutter as well as holding the block against endwise movement during the use of the cutter.
  • Figure 2 illustrates that the set screw 20 exerts a thrust substantially parallel to the blade l2 and consequently the wedge 14 may have flat engagement throughout with the opposed side of the blade l2. In other words, uniform pressure contact between the wedge and the blade results from the tightening of the set screw 20.
  • FIG. 5 illustrates the invention carried out in connection with a reamer, the body 5() of which is slotted for the reception of blades 51.
  • the Wedge blocks 52 which may be of any length, are forced outwardly into binding engagement with the blades 51 by the set screws 54: in the manner described in connection with the milling cutter.
  • the invention forming the subject matter of this application is in the nature lof a body or holder having a slot within which the work engaging member consisting o f the sections 12 and 14 is positioned and that one of the sections, viz, the lsection 14, is increased in width toward the inner edge thereof so that the thrust of the substantially radial fastener 20will force the section 14 out-- wardly into uniform pressure contact with the other section whereby the work engaging member is firmly held in place.
  • the invention is capable of a variety of contact, the wedge being provided with a boss, and a screw threaded through the boss substantially parallel to the plane of the blade and engaging the bottom wall of the slot to urge the wedge outwardl whereby one side of the wedge is flatly 1n binding engagement throughout with the opposed side of the blade.
  • a cutter comprising a body having a slot, a blade and a wedge in the slot and having the opposed sides thereof flatly in Contact, an adjusting screw having threaded engagement with the wedge and bearing boss substantially parallel tothe plane of the blade and engagin the slot to urge the we ge outwardly whereby one surface of the same has uniform pressure Contact with the opposed side of said blade, one side of said slot being grooved to snugly receive said boss.
  • a cutter comprising a body having a slot, a work engaging member in said slot the bottom Wall of and consisting of Separate sections, one of v which increases in width toward the inner edge thereof, and a fastener having thread# ed engagement with one of the sections and bearing against the bottom wall' of the slot to force that section outwardly into uniform pressure engagement with the other section, the position and the thrust of said fastener being substantially parallel to the plane of one of said sections.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Description

Aug. 21, 1928.
F. P. Mil-LER ROTARY CUTTER Filed May 16, 1925 .mvENToR Md: Pldlef;
l ATTORNEY Patented. Aug. 21, 1928.
UNITEDv STATES FRANK r. MILLER, or MEADVILLE, PENNSYLVANIA.
ROTARY CUTTER.
' application med may 16,1925. serial No. 30,782.
This invention relates to rotary cutters such as milling cutters, reamers, tool holders for lathes, counterbores and the like, and has for an important object the provision of simple and easily adjusted means for holding the blades rigidly in place during the use of the same.
More specifically, the invention forming the subject of this application aims to provide a rotary cutter in which the blades are securely held against endwise and edgewise shifting by the simple adjustment of a set screw for each blade, the setsCrew being at all times accessible for engagement by a screw-driver or other tool.
Other objects and advantages will be apparent during the course of the following description. 4
ln the accompanying drawing forming a part of this application and in which like numerals are employed to designate lile parts throughout the same,
Figure 1 is a fragmentary .perspective of a milling cutter Aembodying the invention;
Figure 2 is a detail vertical sectional view through the same;
Figure 3 is a group perspective illustrating a blade and the holding means therefor;
Figure l is a detail sectional view taken on line 4--4 of Figure 2;
Figure 5 is a side elevation of a reamer embodying the invention.
7 In the drawing wherein for the purpose of illustration is shown a. preferred embodiment of the invention the numeral 10 designates a millin cutter body provided with an annular series of slots 11 for the reception of blades 12 and wedge blocks 14. Figure 1 plainl illustrates that one side face of each bla e 12 and the adjacent wall of the groove or slot 11 is provided' with angularly extending, interfitting teeth or serrations 16..
Attention is directed to Figures 1 and 3 which illustrate that the tapered wedge block 14 is provided intermediate the ends thereof with a transverse rib or boss 18 inu teriorly threaded for the reception of an adjusting screw 20. The adjusting screw 2O is rovided at the inner end thereof with a reriluced contact portion' 22 which bears against' the inner end wall of a groove 26 and thereby forces the tapered wedge block 14 outwardly into binding engagementwith the blade. It will be seen that when the tapered wedge block 14 is forced outwardly n 1,681,675 PATENT(l OFFICE.
tessera by the turning of the screwY 20 the serrations 16 will besecurely interlocked with each other so that the blade is positively held against endwise and edgewise movement.
It will be seen that the block 14 is held against endwise movement by the boss 18 which is snugly received in the groove 26 in one side wall of the slot. This also greatly expedites the assembling of the cutter as well as holding the block against endwise movement during the use of the cutter.
Figure 2 illustrates that the set screw 20 exerts a thrust substantially parallel to the blade l2 and consequently the wedge 14 may have flat engagement throughout with the opposed side of the blade l2. In other words, uniform pressure contact between the wedge and the blade results from the tightening of the set screw 20.
'Figure 5 illustrates the invention carried out in connection with a reamer, the body 5() of which is slotted for the reception of blades 51. The Wedge blocks 52, which may be of any length, are forced outwardly into binding engagement with the blades 51 by the set screws 54: in the manner described in connection with the milling cutter.
In summarizing it-will be seen that the invention forming the subject matter of this application is in the nature lof a body or holder having a slot within which the work engaging member consisting o f the sections 12 and 14 is positioned and that one of the sections, viz, the lsection 14, is increased in width toward the inner edge thereof so that the thrust of the substantially radial fastener 20will force the section 14 out-- wardly into uniform pressure contact with the other section whereby the work engaging member is firmly held in place.
The invention is capable of a variety of contact, the wedge being provided with a boss, anda screw threaded through the boss substantially parallel to the plane of the blade and engaging the bottom wall of the slot to urge the wedge outwardl whereby one side of the wedge is flatly 1n binding engagement throughout with the opposed side of the blade.
` 2. A cutter comprising a body having a slot, a blade and a wedge in the slot and having the opposed sides thereof flatly in Contact, an adjusting screw having threaded engagement with the wedge and bearing boss substantially parallel tothe plane of the blade and engagin the slot to urge the we ge outwardly whereby one surface of the same has uniform pressure Contact with the opposed side of said blade, one side of said slot being grooved to snugly receive said boss.
5. A cutter comprising a body having a slot, a work engaging member in said slot the bottom Wall of and consisting of Separate sections, one of v which increases in width toward the inner edge thereof, and a fastener having thread# ed engagement with one of the sections and bearing against the bottom wall' of the slot to force that section outwardly into uniform pressure engagement with the other section, the position and the thrust of said fastener being substantially parallel to the plane of one of said sections.
In testimony whereof I affix my signature.
FRANK P. MILLER.
US30782A 1925-05-16 1925-05-16 Rotary cutter Expired - Lifetime US1681675A (en)

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420057A (en) * 1943-05-13 1947-05-06 Super Tool Company Inserted blade cutter and clamping means
US2435287A (en) * 1944-05-12 1948-02-03 Robert W Thomas Cutting tool
US2455230A (en) * 1946-06-13 1948-11-30 Apex Tool & Cutter Company Milling tool
US3467416A (en) * 1967-11-03 1969-09-16 Mccrosky Tool Corp Blade locking devices
US3882582A (en) * 1973-04-18 1975-05-13 Thurston V Williams Adjustable bit holder
US4318647A (en) * 1980-04-07 1982-03-09 General Electric Company Adjustable insert seat and wedge assembly for an indexable boring cutter
US4437802A (en) 1981-09-14 1984-03-20 Hall Jr John J Boring tool having a detachable cutting blade
US5176191A (en) * 1991-07-22 1993-01-05 Woodmaster Tools, Inc. Holder for rotating cutting knives
US5482412A (en) * 1993-05-13 1996-01-09 Mitsubishi Materials Corporation Cutting tool
US5626189A (en) * 1995-09-22 1997-05-06 Weatherford U.S., Inc. Wellbore milling tools and inserts
FR2759615A1 (en) * 1997-02-20 1998-08-21 Aob Circular cutting tool for machining metal
US5810518A (en) * 1995-09-25 1998-09-22 Sandvik Ab Fastening arrangement for cutting inserts and a cutting insert intended for such an arrangement
US5908071A (en) * 1995-09-22 1999-06-01 Weatherford/Lamb, Inc. Wellbore mills and inserts
US5984005A (en) * 1995-09-22 1999-11-16 Weatherford/Lamb, Inc. Wellbore milling inserts and mills
US6102630A (en) * 1999-01-12 2000-08-15 Tool Flo Manufacturing, Inc. Ball nose end mill insert
US6170576B1 (en) 1995-09-22 2001-01-09 Weatherford/Lamb, Inc. Mills for wellbore operations
US6244790B1 (en) * 1994-12-08 2001-06-12 Seco Tools Ab Tool and insert for chip removal machining
US6523768B2 (en) 2000-03-29 2003-02-25 Morbark, Inc. Rotary mill having releasable wedge-lock tool insert holding system
US20080044239A1 (en) * 2004-02-20 2008-02-21 Sture Sjoo Slot Milling Cutter
US20090283328A1 (en) * 2008-05-15 2009-11-19 Longyear Tm, Inc. Reamer with polycrystalline diamond compact inserts
US20130251465A1 (en) * 2010-12-25 2013-09-26 Kyocera Corporation Cutting tool and method of manufacturing machined product using the same
US20150337658A1 (en) * 2013-08-26 2015-11-26 Winchester E. Latham Tooth and retainer
US20160089730A1 (en) * 2014-09-30 2016-03-31 Sandvik Intellectual Property Ab Mechanism for enhanced, bi-directional fine adjustment of cutting insert cartridges in machine tools

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420057A (en) * 1943-05-13 1947-05-06 Super Tool Company Inserted blade cutter and clamping means
US2435287A (en) * 1944-05-12 1948-02-03 Robert W Thomas Cutting tool
US2455230A (en) * 1946-06-13 1948-11-30 Apex Tool & Cutter Company Milling tool
US3467416A (en) * 1967-11-03 1969-09-16 Mccrosky Tool Corp Blade locking devices
US3882582A (en) * 1973-04-18 1975-05-13 Thurston V Williams Adjustable bit holder
US4318647A (en) * 1980-04-07 1982-03-09 General Electric Company Adjustable insert seat and wedge assembly for an indexable boring cutter
US4437802A (en) 1981-09-14 1984-03-20 Hall Jr John J Boring tool having a detachable cutting blade
US5176191A (en) * 1991-07-22 1993-01-05 Woodmaster Tools, Inc. Holder for rotating cutting knives
US5482412A (en) * 1993-05-13 1996-01-09 Mitsubishi Materials Corporation Cutting tool
US6244790B1 (en) * 1994-12-08 2001-06-12 Seco Tools Ab Tool and insert for chip removal machining
US5626189A (en) * 1995-09-22 1997-05-06 Weatherford U.S., Inc. Wellbore milling tools and inserts
US5908071A (en) * 1995-09-22 1999-06-01 Weatherford/Lamb, Inc. Wellbore mills and inserts
US5984005A (en) * 1995-09-22 1999-11-16 Weatherford/Lamb, Inc. Wellbore milling inserts and mills
US6170576B1 (en) 1995-09-22 2001-01-09 Weatherford/Lamb, Inc. Mills for wellbore operations
US5810518A (en) * 1995-09-25 1998-09-22 Sandvik Ab Fastening arrangement for cutting inserts and a cutting insert intended for such an arrangement
FR2759615A1 (en) * 1997-02-20 1998-08-21 Aob Circular cutting tool for machining metal
US6102630A (en) * 1999-01-12 2000-08-15 Tool Flo Manufacturing, Inc. Ball nose end mill insert
US6523768B2 (en) 2000-03-29 2003-02-25 Morbark, Inc. Rotary mill having releasable wedge-lock tool insert holding system
US20080044239A1 (en) * 2004-02-20 2008-02-21 Sture Sjoo Slot Milling Cutter
US7780381B2 (en) * 2004-02-20 2010-08-24 Sandvik Intellectual Property Ab Slot milling cutter
EP1727638B2 (en) † 2004-02-20 2017-12-06 Sandvik Intellectual Property AB Slot milling cutter
US20090283328A1 (en) * 2008-05-15 2009-11-19 Longyear Tm, Inc. Reamer with polycrystalline diamond compact inserts
US8025107B2 (en) * 2008-05-15 2011-09-27 Longyear Tm, Inc. Reamer with polycrystalline diamond compact inserts
US20130251465A1 (en) * 2010-12-25 2013-09-26 Kyocera Corporation Cutting tool and method of manufacturing machined product using the same
US9517509B2 (en) * 2010-12-25 2016-12-13 Kyocera Corporation Cutting tool and method of manufacturing machined product using the same
US20150337658A1 (en) * 2013-08-26 2015-11-26 Winchester E. Latham Tooth and retainer
US9631490B2 (en) * 2013-08-26 2017-04-25 Winchester E. Latham Tooth and retainer
US20160089730A1 (en) * 2014-09-30 2016-03-31 Sandvik Intellectual Property Ab Mechanism for enhanced, bi-directional fine adjustment of cutting insert cartridges in machine tools
US9862040B2 (en) * 2014-09-30 2018-01-09 Sandvik Intellectual Property Ab Mechanism for enhanced, bi-directional fine adjustment of cutting insert cartridges in machine tools

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