US2110530A - Process for the mechanical trimming of pieces - Google Patents

Process for the mechanical trimming of pieces Download PDF

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Publication number
US2110530A
US2110530A US84566A US8456636A US2110530A US 2110530 A US2110530 A US 2110530A US 84566 A US84566 A US 84566A US 8456636 A US8456636 A US 8456636A US 2110530 A US2110530 A US 2110530A
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Prior art keywords
trimming
pieces
face
blade
mechanical
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US84566A
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Saives Leon
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/104—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element
    • B25B5/106—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element with one end of the lever resting on an additional block and the screw being positioned between the ends of the lever
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • 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
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49332—Propeller making
    • 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
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • Y10T29/49812—Temporary protective coating, impregnation, or cast layer
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/303752—Process
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306664—Milling including means to infeed rotary cutter toward work
    • Y10T409/307448—Milling including means to infeed rotary cutter toward work with work holder

Definitions

  • the present invention relates to a process for cast iron box I of suitable size having at itsthe mechanical trimming of pieces of any kind by the reproducing machine, and is chiefly applicable to the trimming of pieces for which there 5 is a risk of deformation before or after the trimming, for instance in the trimming of airplane propellers consisting of a light alloy.
  • the airplane propellers which consist of a light alloy composed largely of aluminium or magnesium, comprise two, three or four blades, and
  • each'of such blades includes the following operations.
  • Thisdatter operation is performedat the present time either entirely by hand by the. use of 7 portable milling cutters or grinders, or by hand for the first face and by the reproducing machine for the second face.
  • For the trimming of the first face by the reproducing machine it is necessary to strongly secure the blade to a support by means of clamps, but without any distortion.
  • the presentinvention permits to obtain this result, and it consists in ⁇ using as a support, a box containing freshly prepared plaster uUOn which the piece to be trimmed, such as a blade.
  • the device shown in the drawing comprises a g shows by way of ex ple an embodiment o the invention which '40 serves for the trimming of propeller blades.
  • the operator begins by trimmingthe part between the clamps 5 and 6, and then removes the clamp 6 for the trimming at this point, after which he puts the clamp in place and then carries out 'the trimming between the clamps 8 and l, and so on'.
  • the blade is reversed upon a device provided with a template, as in known practice. and the operatorthen trims the other face.
  • a process for mechanically trimming pieces of'work having relatively large irregular fiat surfaces to be machined consisting in placing freshlyprepared plaster in abommounting the piece of workon the-plasterv so that the latter conforms to the lowersurface of the piece of work and is substantially coextensive therewith and so that the upper surface to betrim'med is ex- 35 posed, permitting the plaster to set, removably and independently clamping the piece of work to the plaster at different points on the face to be trimmed and then finishing the upper surface of the piece of work. 4 40 2.

Description

March s, 1938. L. SAIVES 2,110,530
PROCESS FORTHE MECHANICAL TRIMMING OF PIECES Filed June 10, 1936' al Pe Patented Mar. 8, 1938 d PROCESS FOR THE MECHANICAL TRIM- MING or PIECES Leon Saives, Billancourt, France, assignor, to Louis Renault, Blllancourt,; France Application June 10, 1936, Serial No. 84,586 In. France August 8, 1935 2 Claims. ((31. 90-11) The present invention relates to a process for cast iron box I of suitable size having at itsthe mechanical trimming of pieces of any kind by the reproducing machine, and is chiefly applicable to the trimming of pieces for which there 5 is a risk of deformation before or after the trimming, for instance in the trimming of airplane propellers consisting of a light alloy.
, The airplane propellers which consist of a light alloy composed largely of aluminium or magnesium, comprise two, three or four blades, and
the manufacture of each'of such blades includes the following operations.
l. A forging which is followed by a pressing;
operation adaptedto give to the'blade a shape which comes as near as possible to its definite shape. 7
2. A treatment by which themetal is-given the proper hardness and strength. I 3. A trimming for the external shape of the blades.
Thisdatter operation is performedat the present time either entirely by hand by the. use of 7 portable milling cutters or grinders, or by hand for the first face and by the reproducing machine for the second face. For the trimming of the first face by the reproducing machine, it is necessary to strongly secure the blade to a support by means of clamps, but without any distortion. The presentinvention permits to obtain this result, and it consists in \using as a support, a box containing freshly prepared plaster uUOn which the piece to be trimmed, such as a blade.
is lowered and is placed exactly in the position which the said piece is to occupy during the trimming. The bottom of the said box is planed smooth in orderthat it may be mounted on the tabl of the reproducing machine.
Inge accompanying dra The device shown in the drawing comprises a g shows by way of ex ple an embodiment o the invention which '40 serves for the trimming of propeller blades.
lower part a contact face 2 which is planed smooth in order that it may be mounted on the reproducing table. To secure the blade to be trimmed to the said support, freshly prepared plaster 3 is placed in the said box, and the blade 4 is loweredlnto the exact position which it is to occupy during the trimming of its upper face. When the plaster 3 has sufiloiently set, the blade is firmly held in place by clamps 5- 8'--1--8 which-are pressed against the-blade by screws FIB-l l-.-l2.
The operator begins by trimmingthe part between the clamps 5 and 6, and then removes the clamp 6 for the trimming at this point, after which he puts the clamp in place and then carries out 'the trimming between the clamps 8 and l, and so on'. When the upper face has been trimmed, the blade is reversed upon a device provided with a template, as in known practice. and the operatorthen trims the other face.
By operating in the manner above indicated, it is" possible to effect the mechanical trimming of the first face of the blade, without any risk of deformation'of this face after the trimming operation.
f I claim:-- v
1. A process for mechanically trimming pieces of'work having relatively large irregular fiat surfaces to be machined, consisting in placing freshlyprepared plaster in abommounting the piece of workon the-plasterv so that the latter conforms to the lowersurface of the piece of work and is substantially coextensive therewith and so that the upper surface to betrim'med is ex- 35 posed, permitting the plaster to set, removably and independently clamping the piece of work to the plaster at different points on the face to be trimmed and then finishing the upper surface of the piece of work. 4 40 2. The-application of the process claimed in claim 1 to the mechanical trimming of the first face of a propeller blade,-
' LEON SAIVES.
US84566A 1935-08-08 1936-06-10 Process for the mechanical trimming of pieces Expired - Lifetime US2110530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR467705X 1935-08-08

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431411A (en) * 1943-07-02 1947-11-25 Curtiss Wright Corp Plate component for propeller blades
US2463065A (en) * 1944-05-22 1949-03-01 Globe Oil Tools Co Method for mounting work in a holder
US2612082A (en) * 1948-03-31 1952-09-30 Thompson Prod Inc Impeller blade support fixture
US2671404A (en) * 1950-03-15 1954-03-09 Florin W Krueger Turbine pump
US2720141A (en) * 1950-10-10 1955-10-11 Ex Cell O Corp Machine tools
US2815867A (en) * 1955-02-15 1957-12-10 Western Electric Co Apparatus for supporting and moving elongate articles
US2825124A (en) * 1952-02-05 1958-03-04 Gen Motors Corp Method of making a fabricated rotor
US3021565A (en) * 1960-05-09 1962-02-20 Northrop Corp Stabilizer for honeycom core
US3095619A (en) * 1958-12-16 1963-07-02 Edwin F Peterson Method and means for sealing adjacent coacting closure surfaces of cavity contouringstructures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253801B (en) * 1991-01-10 1994-08-03 Chu Tak Sunh Support for holding work pieces and forming process thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431411A (en) * 1943-07-02 1947-11-25 Curtiss Wright Corp Plate component for propeller blades
US2463065A (en) * 1944-05-22 1949-03-01 Globe Oil Tools Co Method for mounting work in a holder
US2612082A (en) * 1948-03-31 1952-09-30 Thompson Prod Inc Impeller blade support fixture
US2671404A (en) * 1950-03-15 1954-03-09 Florin W Krueger Turbine pump
US2720141A (en) * 1950-10-10 1955-10-11 Ex Cell O Corp Machine tools
US2825124A (en) * 1952-02-05 1958-03-04 Gen Motors Corp Method of making a fabricated rotor
US2815867A (en) * 1955-02-15 1957-12-10 Western Electric Co Apparatus for supporting and moving elongate articles
US3095619A (en) * 1958-12-16 1963-07-02 Edwin F Peterson Method and means for sealing adjacent coacting closure surfaces of cavity contouringstructures
US3021565A (en) * 1960-05-09 1962-02-20 Northrop Corp Stabilizer for honeycom core

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Publication number Publication date
GB467705A (en) 1937-06-22

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