US3501822A - Tool with bit holder - Google Patents

Tool with bit holder Download PDF

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Publication number
US3501822A
US3501822A US716829A US3501822DA US3501822A US 3501822 A US3501822 A US 3501822A US 716829 A US716829 A US 716829A US 3501822D A US3501822D A US 3501822DA US 3501822 A US3501822 A US 3501822A
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US
United States
Prior art keywords
bit
recess
lock
screw
tool
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
US716829A
Inventor
Thurston Williams
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.)
OK Tool Co Inc
Original Assignee
OK Tool Co Inc
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 OK Tool Co Inc filed Critical OK Tool Co Inc
Application granted granted Critical
Publication of US3501822A publication Critical patent/US3501822A/en
Anticipated expiration legal-status Critical
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
    • B23C5/2265—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
    • B23C5/2468—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
    • 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
    • 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
    • Y10T407/1914—Radially
    • Y10T407/1916—And axially
    • Y10T407/1918—Selectively
    • 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
    • Y10T407/224—Adjustable
    • 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
    • Y10T407/2252—Rectilinearly
    • Y10T407/2256—Rectilinearly including wedge clamp element
    • Y10T407/2258—And guide or detent

Definitions

  • a tool comprising a carrier which has two surfaces meeting at a corner and a bit recess in the corner with a mouth opening in each face and a bottom opposite each mouth, a bit disposed in said recess with an outer cutting edge projecting from each mouth, the bit and recess having interfitting guides extending obliquely to said bottom so that movement of the bit along the guide concomitantly adjusts the extent to which said edges project from said mouths, a lock disposed in the recess at one side of the bit, an actuator for moving the lock to hold the bit in the recess, a bit locator disposed in the recess on said side and having an abutment engaging the bit to limit inward movement of the bit away from said corner, and a screw extending through the lock and threading into said locator.
  • Objects of the invention are to provide a tool which is simple and economical to produce, which can be assembled and adjusted quickly and conveniently and which is durable and reliable in use.
  • the tool comprises a carrier having a bit recess with a bototm and a mouth opposite the bottom, a bit disposed in said recess with its outer cutting end projecting from said mouth and with a space between its inner end and said bottom, a lock dispoed in the recess at one side of the bit, an actuator for moving the lock to hold the bit in the recess, a bit locator disposed in the recess on said side and having an abutment engaging the bit to limit inward movement of the bit toward said botom, and a screw extending through the lock from the mouth toward said bottom and threading into said locator, whereby the bit may be adjusted away from said bottom with a screw driver inserted through said mouth.
  • said abutment extends into said space and seats on said inner end of the bit
  • the tool has means for holding the lock against movement relatively to said bottom by said screw
  • said actuator comprises a second screw
  • said means comprises a circular flange on the second screw which fits into a circular recess in the lock
  • said flange is a head on the second screw
  • the bit and recess have interfitting guides to guide the movement of the bit in response to movement of the locator.
  • FIG. 1 is a side view
  • FIG. 2 is an end view
  • FIGS. 3 and 4 are sections on lines 3-3 and 4-4 respectively of FIG. 1;
  • FIGS. 5 to 8 are like FIGS. 1 to 4 showing a modification.
  • FIGS. 1 to 4 comprises a rotary carrier 1 having a bit recess bounded by a back 2 facing in the direction of rotation, a front 3 facing in the opposite direction, a bottom 4 facing an end mouth and a bottom 6 facing a peripheral mouth.
  • the abutting faces of the bit and back have interfitting serrations extending parallel to the bisector of the angle between the aforesaid bottoms so that adjustment of the bit along the serrations varies the extent to which the bit projects from both of said mouths.
  • a tapered lock 11 wedges between the front of the bit and the front of the recess, the lock being actuated by a screw 12 threading into the carrier and having its head 13 fitting in a semi-circular recess 14 in the lock.
  • Seating on the inner end of the bit opposite the cutting edge 8 is a locator 16 for adjusting the extent to which the cutting edges project from the recess. The locator is actuated by a screw 17 extending through the lock.
  • the lock and locator are interconnected with screw 17 and inserted in the recess after which the bit is inserted in the direction of the serra-- tions and the screw 12 is threaded into the carrier.
  • the locator Before tightening the lock screw the locator is placed at or near the bottom 4 so that the cutting edges 8 and 9 project minimum distances from the end and peripheral mouths of the recess. As the edges wear the bit may be adjusted outwardly from time to time by threading screw 12 into the locator. Before adjustment the lock screw 12 should be loosened. While adjusting the bit the lock 11 is held against movement by the head 13 of the lock screw seating in the recess 14 in the lock.
  • the modification shown in FIGS. 5 to 8 is like the embodiment shown in FIGS. 1 to 4 and corresponding parts are correspondingly numbered. However the modification differs in the following respects.
  • the lock 11' is behind the bit 7 instead of in front; the diagonal serrations are on the abutting surfaces of the bit 7' and lock 11' instead of the abutting surfaces of the bit 7 and recess back 2; and the abutting surfaces of the back 2' of the recess and the lock 11' have interfitting serrations parallel to the axis of the lock screw 17' to prevent sidewise movement of the lock as it moves in and out perpendicular to the bottom 4' of the recess.
  • in-and-out adjustment of the locator 16' varies the extent to which the bit projects from both mouths of the bit recess.
  • a tool comprising a carrier having a bit recess with a bottom and a mouth opposite the bottom, a bit disposed in said-recess with its outer cutting end projecting from said mouth and with a space between its inner end and said bottom, a lock disposed in the recess at one side of the bit, an actuator for moving the lock to hold the bit in the recess, a bit locator disposed in the recess on said side and having an abutment engaging the bit to limit inward movement of the bit toward said bottom, and a screw extending through the lock from the mouth toward said bottom and threading into said locator, whereby the bit may be adjusted away from said bottom with a screw driver inserted through said mouth.
  • a tool according to claim 1 further characterized by means for holding the lock against movement relatively to said bottom by said screw.
  • a tool comprising a carrier having two surfaces meeting at a corner and a bit recess in the corner with a mouth opening in each face and a bottom opposite each mouth, a bit disposed in said recess with an outer cutting edge projecting from each mouth, a lock disposed in the recess at one side of the bit, an actuator for moving the lock to hold the bit in the recess, a bit locator disposed in the recess on said side and having an abutment engaging the bit to limit inward movement of the bit away from said corner, and a screw extending through the lock and threading into said locator, the recess and bit having a first pair of abutting surfaces and the bit and lock having a second pair of abutting surfaces, one of said pairs having interfitting guides extending obliquely to said bottom so that relative movement of the abutting surfaces concomitantly adjusts the extent to which said edges project from said mouths.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Description

March 24, 1970 v T. WILLIAMS 3,
TOOL WITH BIT- HOLDER Filed. Marches, 1968 v 2 Sheets-Sheet 1 .Z'rzr/ezz 97 jiiaizsiwz Williams March 1970 'r. WILLIAMS 3,501,822
TOOL WITH BIT HOLDER Filed March 28, 1968 2 Sheets-Sheet 2 United States Patent 3,501,822 TOOL WIT'H BIT HOLDER Thurston Williams, Wilton, N.H., assignor to The 0.K. Tool Company, Inc., Milford, N.H., a corporation of New Hampshire Continuation-impart of application Ser. No. 662,804, Aug. 23, 1967. This application Mar. 28, 1968, Ser. No. 716,829
Int. Cl. B26d 1/12 US. Cl. 2996 10 Claims ABSTRACT OF THE DISCLOSURE A tool comprising a carrier which has two surfaces meeting at a corner and a bit recess in the corner with a mouth opening in each face and a bottom opposite each mouth, a bit disposed in said recess with an outer cutting edge projecting from each mouth, the bit and recess having interfitting guides extending obliquely to said bottom so that movement of the bit along the guide concomitantly adjusts the extent to which said edges project from said mouths, a lock disposed in the recess at one side of the bit, an actuator for moving the lock to hold the bit in the recess, a bit locator disposed in the recess on said side and having an abutment engaging the bit to limit inward movement of the bit away from said corner, and a screw extending through the lock and threading into said locator.
This application is a continuation-in-part of application Ser. No. 662,804, filed Aug. 23, 1967, allowed Dec. 28, 1967, and now abandoned.
Objects of the invention are to provide a tool which is simple and economical to produce, which can be assembled and adjusted quickly and conveniently and which is durable and reliable in use.
According to this invention the tool comprises a carrier having a bit recess with a bototm and a mouth opposite the bottom, a bit disposed in said recess with its outer cutting end projecting from said mouth and with a space between its inner end and said bottom, a lock dispoed in the recess at one side of the bit, an actuator for moving the lock to hold the bit in the recess, a bit locator disposed in the recess on said side and having an abutment engaging the bit to limit inward movement of the bit toward said botom, and a screw extending through the lock from the mouth toward said bottom and threading into said locator, whereby the bit may be adjusted away from said bottom with a screw driver inserted through said mouth. Preferably said abutment extends into said space and seats on said inner end of the bit, the tool has means for holding the lock against movement relatively to said bottom by said screw, said actuator comprises a second screw, said means comprises a circular flange on the second screw which fits into a circular recess in the lock, said flange is a head on the second screw, and the bit and recess have interfitting guides to guide the movement of the bit in response to movement of the locator.
For the purpose of illustration a typical embodiment is shown in the following drawings in which FIG. 1 is a side view;
FIG. 2 is an end view;
FIGS. 3 and 4 are sections on lines 3-3 and 4-4 respectively of FIG. 1; and
FIGS. 5 to 8 are like FIGS. 1 to 4 showing a modification.
The embodiment of FIGS. 1 to 4 comprises a rotary carrier 1 having a bit recess bounded by a back 2 facing in the direction of rotation, a front 3 facing in the opposite direction, a bottom 4 facing an end mouth and a bottom 6 facing a peripheral mouth. A bit 7, which has cutting edges and 9 projecting through the two mouths respectively, seats on the back 2. The abutting faces of the bit and back have interfitting serrations extending parallel to the bisector of the angle between the aforesaid bottoms so that adjustment of the bit along the serrations varies the extent to which the bit projects from both of said mouths.
A tapered lock 11 wedges between the front of the bit and the front of the recess, the lock being actuated by a screw 12 threading into the carrier and having its head 13 fitting in a semi-circular recess 14 in the lock. Seating on the inner end of the bit opposite the cutting edge 8 is a locator 16 for adjusting the extent to which the cutting edges project from the recess. The locator is actuated by a screw 17 extending through the lock.
To assemble the parts, the lock and locator are interconnected with screw 17 and inserted in the recess after which the bit is inserted in the direction of the serra-- tions and the screw 12 is threaded into the carrier. Before tightening the lock screw the locator is placed at or near the bottom 4 so that the cutting edges 8 and 9 project minimum distances from the end and peripheral mouths of the recess. As the edges wear the bit may be adjusted outwardly from time to time by threading screw 12 into the locator. Before adjustment the lock screw 12 should be loosened. While adjusting the bit the lock 11 is held against movement by the head 13 of the lock screw seating in the recess 14 in the lock.
The modification shown in FIGS. 5 to 8 is like the embodiment shown in FIGS. 1 to 4 and corresponding parts are correspondingly numbered. However the modification differs in the following respects. The lock 11' is behind the bit 7 instead of in front; the diagonal serrations are on the abutting surfaces of the bit 7' and lock 11' instead of the abutting surfaces of the bit 7 and recess back 2; and the abutting surfaces of the back 2' of the recess and the lock 11' have interfitting serrations parallel to the axis of the lock screw 17' to prevent sidewise movement of the lock as it moves in and out perpendicular to the bottom 4' of the recess. As in the first embodiment in-and-out adjustment of the locator 16' varies the extent to which the bit projects from both mouths of the bit recess.
With the heads of the two screws adjacent each other at the peripheral and end faces of the carrier they are accessible conveniently.
It should be understood that the present disclosure is for the purpose of illustration only and that this invention includes all modifications and equivalents which fall within the scope of the appended claims.
I claim:
1. A tool comprising a carrier having a bit recess with a bottom and a mouth opposite the bottom, a bit disposed in said-recess with its outer cutting end projecting from said mouth and with a space between its inner end and said bottom, a lock disposed in the recess at one side of the bit, an actuator for moving the lock to hold the bit in the recess, a bit locator disposed in the recess on said side and having an abutment engaging the bit to limit inward movement of the bit toward said bottom, and a screw extending through the lock from the mouth toward said bottom and threading into said locator, whereby the bit may be adjusted away from said bottom with a screw driver inserted through said mouth.
2. A tool according to claim 1 wherein said abutment extends into said space and seats on said inner end of the bit.
3. A tool according to claim 1 further characterized by means for holding the lock against movement relatively to said bottom by said screw.
4. A tool according to claim 2 wherein said actuator comprises a second screw and said means comprises a circular flange on the second screw which fits intoa circular recessilfth'e lock.
5. A tool according to claim 4 wherein said flange is a head on the second screw.
6. A tool according to claim 1 wherein the bit and recess have interfitting guides to guide the movement of the bit in response to movement of the locator.
7. A tool comprising a carrier having two surfaces meeting at a corner and a bit recess in the corner with a mouth opening in each face and a bottom opposite each mouth, a bit disposed in said recess with an outer cutting edge projecting from each mouth, a lock disposed in the recess at one side of the bit, an actuator for moving the lock to hold the bit in the recess, a bit locator disposed in the recess on said side and having an abutment engaging the bit to limit inward movement of the bit away from said corner, and a screw extending through the lock and threading into said locator, the recess and bit having a first pair of abutting surfaces and the bit and lock having a second pair of abutting surfaces, one of said pairs having interfitting guides extending obliquely to said bottom so that relative movement of the abutting surfaces concomitantly adjusts the extent to which said edges project from said mouths.
4 7 8. A tool according to claim .7, wherein the. interfitting guides are on said first pair of surfaces.
9. A tool according to claim 7 wherein the interfitting guides are on said second pair of surfaces.
10. A tool according to claim 7 wherein said actuator extends inwardly from one of said faces toward one of said bottoms and said screw extends inwardly from the other of said faces toward the other of said bottoms.
References Cited UNITED STATES PATENTS Williams 29-105 HARRISON L. HINSON, Primary Examiner U.S. C1. X.R.
US716829A 1968-03-28 1968-03-28 Tool with bit holder Expired - Lifetime US3501822A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811162A (en) * 1971-03-16 1974-05-21 O Bay Clamping holder for a cutting tool
WO1994025211A1 (en) * 1993-04-27 1994-11-10 Sandvik Ab Milling cutter head with serrated cartridges
WO1999019104A1 (en) * 1997-10-15 1999-04-22 Sandvik Ab Milling tool
WO1999019105A1 (en) * 1997-10-15 1999-04-22 Sandvik Ab Milling tool
US6030153A (en) * 1997-06-15 2000-02-29 Walter Ag Milling tool with axial adjustment
CN1115222C (en) * 1997-10-15 2003-07-23 桑德维克公司 Milling tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121939A (en) * 1957-01-18 1964-02-25 O K Tool Co Inc Cutting tool with indexable bit
US3188718A (en) * 1962-04-10 1965-06-15 Wetzel Internat Precision milling cutter with inserted teeth
US3214825A (en) * 1963-12-18 1965-11-02 O K Tool Co Inc Tool and bit
US3239911A (en) * 1962-05-31 1966-03-15 O K Tool Co Inc Bit holder
US3270396A (en) * 1965-02-25 1966-09-06 O K Tool Co Inc Bit holder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121939A (en) * 1957-01-18 1964-02-25 O K Tool Co Inc Cutting tool with indexable bit
US3188718A (en) * 1962-04-10 1965-06-15 Wetzel Internat Precision milling cutter with inserted teeth
US3239911A (en) * 1962-05-31 1966-03-15 O K Tool Co Inc Bit holder
US3214825A (en) * 1963-12-18 1965-11-02 O K Tool Co Inc Tool and bit
US3270396A (en) * 1965-02-25 1966-09-06 O K Tool Co Inc Bit holder

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811162A (en) * 1971-03-16 1974-05-21 O Bay Clamping holder for a cutting tool
WO1994025211A1 (en) * 1993-04-27 1994-11-10 Sandvik Ab Milling cutter head with serrated cartridges
US5529439A (en) * 1993-04-27 1996-06-25 Sandvik Ab Milling cutter head with serrated cartridges
CN1045405C (en) * 1993-04-27 1999-10-06 桑德维克公司 Milling cutter head with serrated cartridges
US6030153A (en) * 1997-06-15 2000-02-29 Walter Ag Milling tool with axial adjustment
WO1999019104A1 (en) * 1997-10-15 1999-04-22 Sandvik Ab Milling tool
WO1999019105A1 (en) * 1997-10-15 1999-04-22 Sandvik Ab Milling tool
US6004080A (en) * 1997-10-15 1999-12-21 Sandvik Ab Milling tool having cutting inserts mounted by serrated surfaces to a rotary carrier
US6086290A (en) * 1997-10-15 2000-07-11 Sandvik Ab Milling tool having cassette-mounted inserts attached to a rotary supporting body
CN1115222C (en) * 1997-10-15 2003-07-23 桑德维克公司 Milling tool

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