US2392217A - Cutter tool locking mechanism - Google Patents

Cutter tool locking mechanism Download PDF

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Publication number
US2392217A
US2392217A US573380A US57338045A US2392217A US 2392217 A US2392217 A US 2392217A US 573380 A US573380 A US 573380A US 57338045 A US57338045 A US 57338045A US 2392217 A US2392217 A US 2392217A
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United States
Prior art keywords
pin
head
locking mechanism
rod
bushing
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Expired - Lifetime
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US573380A
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James A Anania
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Individual
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Priority to US573380A priority Critical patent/US2392217A/en
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Publication of US2392217A publication Critical patent/US2392217A/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
    • 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
    • B23B27/1685—Adjustable position of the cutting inserts
    • B23B27/1696—Angular position of the cutting insert adjustable around an axis generally perpendicularly to the chip-forming plane
    • 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
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5152—Plural diverse manufacturing apparatus including means for metal shaping or assembling with turret mechanism
    • 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
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5152—Plural diverse manufacturing apparatus including means for metal shaping or assembling with turret mechanism
    • Y10T29/5165—Plural diverse manufacturing apparatus including means for metal shaping or assembling with turret mechanism including rotating and/or locking means
    • Y10T29/5167—Lock means for tool or work turrets
    • 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
    • Y10T407/2244—Tool adjustable relative to holder by movement of seat relative to holder
    • Y10T407/2246—Pivoted seat
    • 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
    • Y10T407/225—Resiliently biased 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
    • Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/14—Rotary member or shaft indexing, e.g., tool or work turret
    • Y10T74/1494—Locking means

Definitions

  • This invention relates to an improved cutter tool locking mechanism, being especially designed for use in connection with the cutter tool assembly disclosed in my copending application filed October 11, 1943, Serial Number 505,859.
  • a tool holder is provided with a rotatable cutter head having circumferentially spaced cutters thereon and it is therefore necessary to lock the head in rotatably adjusted position in order to render the several cutters selectively active.
  • Set bolts and other locking means have been tried for the purpose but have not proven entirely satisfactory.
  • a sliding, spring-retracted locking pin has also been tried but it has been found that unless the pin is provided with a rigid axial abutment, looseness will develop between the pin and head while the tool assembly is in use.
  • a further object of the invention is to provide a locking mechanism wherein the locking pin will be solidly supported at both ends thereof, and wherein the bushing employed for supporting the forward end of said pin may be adjusted toward the forward working terminal of the pin to afford added rigidity thereto.
  • a still further object of the invention is to provide a locking mechanism embodying an axially disposed abutment rod for the locking pin, wherein said rod will provide a rigid stop behind said pin, wherein the rod may be manually adjusted for projecting the pin into engagement with the cutter head or to permit the retraction of the pin, and wherein the rod will be solidly supported at both ends thereof so as to prevent any slight buckling or bending of the rod under end thrust of the locking pin thereon.
  • Figure 1 is a perspective view of my improved cutter tool assembly equipped with the present invention.
  • Figure 2 is a vertical, longitudinal sectional view more particularly showing the details of the present locking mechanism.
  • Figure 3 is a fragmentary, horizontal section on the line 3-3 of Figure 2.
  • Figure 4 is a transverse section on the line 4-4 of Figure 2.
  • said mechanism includes a tool holder having a shank l0 which is adjustable in the usual manner upon a tool post, as suggested in dotted lines in Figure 1, and formed on the shank is a fork ll.
  • a cutter head [2 Rotatably adjustable between the arm of the fork is a cutter head [2 having a number of circumferentially spaced cutter rests l3 thereon, and seated upon said rests are removable cutters M.
  • the tip ends of the rests l3 are provided with sockets l5.
  • a bushing ll Formed through the shank I0 is a smooth, longitudinal bore l6, and screwed into the forward end of said bore is a bushing ll. Slidable through said bushing is a locking pin 3 on the rear end of which is formed a circular head [9, and disposed between said head and the bushing is a spring 20 for retracting said pin and normally holding the pin retracted.
  • the forward end of the pin I8 is engageable in the sockets [5 of the cutter head l2 selectively and the head I! is formed to snugly but slidably fit in the bore l6 so that the head will solidly support the rear end of the pin while the bushing I! will solidly support the pin at its forward end portion.
  • the bushing I! may, be adjusted forwardly in the bore l6 so that the forward terminal of the bushing will lie closer to the forward terminal of the pin for affording added rigidity to the free end of the pin.
  • Screwed into the bore l6 of the shank ID at the rear end of said bore is a bushing 2
  • the rod 22 is provided with a circular head 23 which snugly but slidably as Well as rotatably fits in the bore l6 of the shank II] for solidly supporting the forward end of the rod while the bushing 2
  • the head 23 of the rod 22 seats fiat against th head IQ of the locking pin I8 to provide a stop therefor, and pinned or otherwise removably secured upon the rear end of said rod is a knob 24. Accordingly, as will be seen, the rod 22 may be manually adjusted forwardly when the head 23 of the rod will rotate against the head l9 of the locking pin l8 and project the pin into one of the sockets l5 of the-cutter head l2.
  • a rigid and solid lock for the head is thus provided, and, preferably, the rod 22 is equipped with a lock nut bination of a tool holder having a shank, a cutter head rotatably adjustable upon the holder, a locking pin ireely slidable upon the. shank and movable forwardly to engage at its forward end with the head and lock the head in adjusted position.
  • a spring disposed between saidif head and bushing and acting. to retract the pin, ,a second bushing mounted in the rear end of said bore, and an abutment rod screwed through the latter bushing andprovided at its forward end with a head rotatably fitting in'said bore to contact the head of said pin, said rodbeing rotatably adjustable for sliding the pin forwardly to engage and lock the 215 hea'din adjusted position.

Description

Jan. 1, 1946. J. A. ANANIA 3 1 CUTTER TOOL LOCKING MECHANISM Filed Jan. 18, 1945 Patented Jan. 1, 1946 U ITED STATES PATE T iii m v2,392,217 1 v v I I f CUTTER.TOOL LOCKING MECHANISM James A. Anania, Newark, J. I Application January 18, 1945, Serial No. 573,380
2 Claims.
This invention relates to an improved cutter tool locking mechanism, being especially designed for use in connection with the cutter tool assembly disclosed in my copending application filed October 11, 1943, Serial Number 505,859.
In my improved cutter tool assembly mentioned, a tool holder is provided with a rotatable cutter head having circumferentially spaced cutters thereon and it is therefore necessary to lock the head in rotatably adjusted position in order to render the several cutters selectively active. Set bolts and other locking means have been tried for the purpose but have not proven entirely satisfactory. A sliding, spring-retracted locking pin has also been tried but it has been found that unless the pin is provided with a rigid axial abutment, looseness will develop between the pin and head while the tool assembly is in use.
It is accordingly an object of the present invention to provide a locking mechanism wherein a sliding, spring-retracted locking pin for the cutter head will be provided with a rigid axial abutment.
A further object of the invention is to provide a locking mechanism wherein the locking pin will be solidly supported at both ends thereof, and wherein the bushing employed for supporting the forward end of said pin may be adjusted toward the forward working terminal of the pin to afford added rigidity thereto.
And a still further object of the invention is to provide a locking mechanism embodying an axially disposed abutment rod for the locking pin, wherein said rod will provide a rigid stop behind said pin, wherein the rod may be manually adjusted for projecting the pin into engagement with the cutter head or to permit the retraction of the pin, and wherein the rod will be solidly supported at both ends thereof so as to prevent any slight buckling or bending of the rod under end thrust of the locking pin thereon.
Other and incidental objects of the invention will appear during the course of the following description, and in the drawing.
Figure 1 is a perspective view of my improved cutter tool assembly equipped with the present invention.
Figure 2 is a vertical, longitudinal sectional view more particularly showing the details of the present locking mechanism.
Figure 3 is a fragmentary, horizontal section on the line 3-3 of Figure 2.
Figure 4 is a transverse section on the line 4-4 of Figure 2.
In the drawing, I have shown my improved cutter tool assembly, previously identified,
equipped with the locking mechanism of the present invention. Briefly stated, said mechanism includes a tool holder having a shank l0 which is adjustable in the usual manner upon a tool post, as suggested in dotted lines in Figure 1, and formed on the shank is a fork ll. Rotatably adjustable between the arm of the fork is a cutter head [2 having a number of circumferentially spaced cutter rests l3 thereon, and seated upon said rests are removable cutters M. In accordance with the present invention, the tip ends of the rests l3 are provided with sockets l5.
Formed through the shank I0 is a smooth, longitudinal bore l6, and screwed into the forward end of said bore is a bushing ll. Slidable through said bushing is a locking pin 3 on the rear end of which is formed a circular head [9, and disposed between said head and the bushing is a spring 20 for retracting said pin and normally holding the pin retracted.
The forward end of the pin I8 is engageable in the sockets [5 of the cutter head l2 selectively and the head I!) is formed to snugly but slidably fit in the bore l6 so that the head will solidly support the rear end of the pin while the bushing I! will solidly support the pin at its forward end portion. Furthermore, as will be observed, the bushing I! may, be adjusted forwardly in the bore l6 so that the forward terminal of the bushing will lie closer to the forward terminal of the pin for affording added rigidity to the free end of the pin.
Screwed into the bore l6 of the shank ID at the rear end of said bore is a bushing 2|, and screwed through said bushing i an abutment rod 22 disposed axially of the locking pin I8. At its forward end, the rod 22 is provided with a circular head 23 which snugly but slidably as Well as rotatably fits in the bore l6 of the shank II] for solidly supporting the forward end of the rod while the bushing 2| will solidly support the rod at its rear end portion. Thus, any slight buckling or bending of the rod under end thrust of the locking pin l8 thereon will be prevented.
The head 23 of the rod 22 seats fiat against th head IQ of the locking pin I8 to provide a stop therefor, and pinned or otherwise removably secured upon the rear end of said rod is a knob 24. Accordingly, as will be seen, the rod 22 may be manually adjusted forwardly when the head 23 of the rod will rotate against the head l9 of the locking pin l8 and project the pin into one of the sockets l5 of the-cutter head l2. A rigid and solid lock for the head is thus provided, and, preferably, the rod 22 is equipped with a lock nut bination of a tool holder having a shank, a cutter head rotatably adjustable upon the holder, a locking pin ireely slidable upon the. shank and movable forwardly to engage at its forward end with the head and lock the head in adjusted position.
and an abutment rod connecting the rear end of said pin to extend axiallythereof and rotatably adjustable upon the shank for shifting said pin forwardly. r 7 2. In a cutter tool locking mechanism'th'e com-- bination of a tool holder having a shank provided with a bore therethroughracutter head rotatably adjustable upon the holder, abushing' mounted in the forward end of said bore, a locking pin slidable through said bushing and provided at its rear end with a head slidably fitting in said bore,
a spring disposed between saidif head and bushing and acting. to retract the pin, ,a second bushing mounted in the rear end of said bore, and an abutment rod screwed through the latter bushing andprovided at its forward end with a head rotatably fitting in'said bore to contact the head of said pin, said rodbeing rotatably adjustable for sliding the pin forwardly to engage and lock the 215 hea'din adjusted position.
JAMES A. ANANIA.
US573380A 1945-01-18 1945-01-18 Cutter tool locking mechanism Expired - Lifetime US2392217A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057884A (en) * 1976-01-16 1977-11-15 Suzuki Iron Works Co., Ltd. Tool holder
US7600453B1 (en) * 2003-10-10 2009-10-13 Sun Systems, Inc. Refinishing tool
US20110056342A1 (en) * 2009-09-04 2011-03-10 Satisloh Gmbh Device for the Rotary Machining of Optical Workpieces of Materials of Non-Brittle Hardness
CN113000878A (en) * 2021-03-16 2021-06-22 上汽大众汽车有限公司 Turning tool capable of automatically turning cutting edge in machining process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057884A (en) * 1976-01-16 1977-11-15 Suzuki Iron Works Co., Ltd. Tool holder
US7600453B1 (en) * 2003-10-10 2009-10-13 Sun Systems, Inc. Refinishing tool
US20110056342A1 (en) * 2009-09-04 2011-03-10 Satisloh Gmbh Device for the Rotary Machining of Optical Workpieces of Materials of Non-Brittle Hardness
US8806997B2 (en) * 2009-09-04 2014-08-19 Satisloh Gmbh Device for lathe machining of optical workpieces of materials of non-brittle hardness
CN113000878A (en) * 2021-03-16 2021-06-22 上汽大众汽车有限公司 Turning tool capable of automatically turning cutting edge in machining process

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