US3052276A - Pressing of fittings onto wire or wire rope - Google Patents
Pressing of fittings onto wire or wire rope Download PDFInfo
- Publication number
- US3052276A US3052276A US21347A US2134760A US3052276A US 3052276 A US3052276 A US 3052276A US 21347 A US21347 A US 21347A US 2134760 A US2134760 A US 2134760A US 3052276 A US3052276 A US 3052276A
- Authority
- US
- United States
- Prior art keywords
- pressing
- fitting
- wire
- die
- end portions
- 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
Links
- 238000003825 pressing Methods 0.000 title description 16
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000011324 bead Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/058—Crimping mandrels
-
- 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
- Y10T29/49826—Assembling or joining
- Y10T29/49885—Assembling or joining with coating before or during assembling
-
- 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
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
- Y10T29/49927—Hollow body is axially joined cup or tube
- Y10T29/49929—Joined to rod
Definitions
- flash in the form of longitudinal rib, will normally be formed on the fitting and it is an object of the invention to reduce the flash so formed.
- the invention consists of a two or four part die arrangement for pressing fittings onto wire, wire rope or wire strand, in which each die face is of a semi-circular or quadrantal form and has short end portions inclined to the respective junction faces at an angle of 60 to 70 degrees, preferably 65 degrees.
- the extreme ends of the short end portions are conveniently rounded to merge with the junction faces.
- the short end portions preferably start at a distance from the junction face equal to between 0.06 and 0.075 of the external fitting diameter.
- Such an arrangement of the die provides improved metal flow during the pressing operation and leaves a small substantially smooth rib on the outside of the fitting, such rib having its outer face corresponding in cross section to an obtuse angle of about 120 to 140 degrees.
- FIGURE 1 is an end elevation partly in section, of a four part die set in accordance with the invention.
- FIGURE 2 shows a detail thereof, on an enlarged scale.
- FIG. 1 there is shown a set of dies 1 acting on a circular fitting 2.
- the dies themselves are ar ranged to be retained in pairs in V-blocks and the upper and lower V-blocks are hydraulically pressed together to compress the fitting 2.
- the junction faces 4 of the dies are brought together and the relative position of the dies is retained during pressing by guide members 6, 7 and 8, the members 6 being retained by end plates 9.
- the lower part of FIGURE 1 is a section on the centre line of the die set.
- FIGURE 2 shows, on an enlarged scale, the part of FIGURE 1 within the circle z. From this figure it can be seen that the working face 11 of each die is formed of a quadrant 12 and short end portions 13 inclined at an angle of 65 at the planes 14 of the adjacent junction faces 4. The extreme ends of the portions 13 are rounded to merge into the junction faces 4.
- the short end portions 13 commence at a distance A from the junction faces 4, where A is equal to between 0.06 and 0.075 of the ferrule external diameter before pressing. For mechanical splicing it is approximately /6 of the rope diameter.
- a die structure for pressing a fitting having a cylindrical formation onto wire, wire rope, or the like comprising zfour dies arranged to surround a fitting each having a pair of junction faces extending in substantially perpendicular planes, an arcuate die face in each die generated substantially about the intersection of said junction face planes as an axis and on a radius less than half the external diameter of the fitting to be pressed, and substantially straight relatively short end portions extending between the ends of the die face and the adjacent junction faces, each of said end portions lying at an angle of between 60 and 70 degrees to the adjacent junction face to receive fiash resulting from pressing of the fitting and impart thereto a controlled bead formation.
- a die structure for pressing a fitting having a cylindrical formation onto wire, Wire rope, or the like com prising a plurality of dies arranged to surround a fitting each having a pair of junction faces and an arcuate die face between said junction faces with a substantially straight relatively short end portion connecting each end of said die face to the adjacent junction face, said straight end portions each extending at an angle of between about 60 to degrees to the adjacent junction face, said dies being arranged for movement of the die faces radially into crimping engagement about a fitting, and said end portions intercepting flash resulting from pressing of the fitting and imparting thereto a controlled bead formation.
- a die structure for radially pressing a fi-tting having a cylindrical formation onto Wire, wire rope, and the like comprising a plurality of dies each having an arcuate die race therein formed on a radius smaller than half the outer diameter of the fitting to be pressed, said dies being movable radially inwardly to effect circumferential reduction of the fitting by said die faces, said die faces in the radially inward position thereof defining substantially a cylindrical surface interrupted by grooves extending between adjacent die faces athwart the ends thereof, each of said grooves being generally of V-section and defined by a pair of substantially straight relatively 41 short end portions disposed at an angle of approximately 130 degrees to each other and each extending from an adjacent end of a die face, and said grooves receiving flash resulting from pressing of the fitting and impart- 5 ing thereto a 'bead formation conforming to the grooves.
Description
Sept 4, 1.962 H. M. BENDER- 3,052,276
PRESS-ING 0F FITTINGS ONIO WIREI OR WERE ROPE;
Filed April 11. 1960:
Jaye/2Z0? 5 War/"0X0 JWE'V 122 2 Bender nite States atent is 3,052,276 PRESSKNG F FITTINGS ONTO WIRE 0R WIRE ROPE Harold Mervyn Bender, London, England, assignor to British Ropes Limited, Doncaster, England Filed Apr. 11, 1960, Ser. No. 21,347 Claims priority, application Great Britain June 16, 1959 11 Claims. (Cl. 153-1) This invention relates to the pressing of metallic, e.g. steel, ferrules or other fittings onto wire, wire rope or wire strand.
Examples of such pressing operations are to be [found in the fields of mechanical splicing and joining.
When using two or four part compression dies 2. flash, in the form of longitudinal rib, will normally be formed on the fitting and it is an object of the invention to reduce the flash so formed.
It can be readily understood that a fitting with no flashes is easier to handle in production and also when the fitting is coated with an anti-corrosive substance, such as zinc or cadmium, there will be little or no rupture of the coating.
The invention consists of a two or four part die arrangement for pressing fittings onto wire, wire rope or wire strand, in which each die face is of a semi-circular or quadrantal form and has short end portions inclined to the respective junction faces at an angle of 60 to 70 degrees, preferably 65 degrees.
The extreme ends of the short end portions are conveniently rounded to merge with the junction faces.
The short end portions preferably start at a distance from the junction face equal to between 0.06 and 0.075 of the external fitting diameter.
Such an arrangement of the die provides improved metal flow during the pressing operation and leaves a small substantially smooth rib on the outside of the fitting, such rib having its outer face corresponding in cross section to an obtuse angle of about 120 to 140 degrees.
The invention will be further described in one embodirnent with reference to the accompanying drawings, in which:
FIGURE 1 is an end elevation partly in section, of a four part die set in accordance with the invention; and
FIGURE 2 shows a detail thereof, on an enlarged scale.
In the drawings there is shown a set of dies 1 acting on a circular fitting 2. The dies themselves are ar ranged to be retained in pairs in V-blocks and the upper and lower V-blocks are hydraulically pressed together to compress the fitting 2. During pressing the junction faces 4 of the dies are brought together and the relative position of the dies is retained during pressing by guide members 6, 7 and 8, the members 6 being retained by end plates 9. The lower part of FIGURE 1 is a section on the centre line of the die set.
FIGURE 2 shows, on an enlarged scale, the part of FIGURE 1 within the circle z. From this figure it can be seen that the working face 11 of each die is formed of a quadrant 12 and short end portions 13 inclined at an angle of 65 at the planes 14 of the adjacent junction faces 4. The extreme ends of the portions 13 are rounded to merge into the junction faces 4.
3,052,276 Patented Sept. 4, 1962 ,"ice
The short end portions 13 commence at a distance A from the junction faces 4, where A is equal to between 0.06 and 0.075 of the ferrule external diameter before pressing. For mechanical splicing it is approximately /6 of the rope diameter.
Various modifications may be made within the scope of the invention, such as the use of two part dies, instead of the four part set illustrated. As a further or alternative modification the dies may be arranged in sets for multi-stage operation whereby each fitting is successively subjected to a progressive series of pressing operations.
I claim:
1. A die structure for pressing a fitting having a cylindrical formation onto wire, wire rope, or the like, comprising zfour dies arranged to surround a fitting each having a pair of junction faces extending in substantially perpendicular planes, an arcuate die face in each die generated substantially about the intersection of said junction face planes as an axis and on a radius less than half the external diameter of the fitting to be pressed, and substantially straight relatively short end portions extending between the ends of the die face and the adjacent junction faces, each of said end portions lying at an angle of between 60 and 70 degrees to the adjacent junction face to receive fiash resulting from pressing of the fitting and impart thereto a controlled bead formation.
2. A die structure substantially as defined in claim 1, in which said angle is substantially degrees.
3. A die structure substantially as defined in claim 1, in which the short end portions merge with the junction faces on smooth curves.
4. A die structure substantially as defined in claim 1, in which the length of the short end portions is between albout 0.06 and 0.075 of the external diameter of the fitting to :be pressed.
5. A die structure substantially as defined in claim 1, in which the short end portions are of a length equal to about one-sixth of the interior diameter of the fitting.
6. A die structure for pressing a fitting having a cylindrical formation onto wire, Wire rope, or the like, com prising a plurality of dies arranged to surround a fitting each having a pair of junction faces and an arcuate die face between said junction faces with a substantially straight relatively short end portion connecting each end of said die face to the adjacent junction face, said straight end portions each extending at an angle of between about 60 to degrees to the adjacent junction face, said dies being arranged for movement of the die faces radially into crimping engagement about a fitting, and said end portions intercepting flash resulting from pressing of the fitting and imparting thereto a controlled bead formation.
7. A die structure substantially as defined in claim 6, in which said angle is substantially 65 degrees.
8. A die structure substantially as defined in claim 7, in which the short end portions merge with the junction faces on smooth curves.
9. A die structure substantially as defined in claim 6, in which the short end portions are of a length between about 0.06 and 0.075 of the external diameter of the fitting.
10. A die structure substantially as defined in claim 6, in which the short end portions are of a length equal to about one-sixth of the interior diameter of the fitting.
11. A die structure for radially pressing a fi-tting having a cylindrical formation onto Wire, wire rope, and the like, comprising a plurality of dies each having an arcuate die race therein formed on a radius smaller than half the outer diameter of the fitting to be pressed, said dies being movable radially inwardly to effect circumferential reduction of the fitting by said die faces, said die faces in the radially inward position thereof defining substantially a cylindrical surface interrupted by grooves extending between adjacent die faces athwart the ends thereof, each of said grooves being generally of V-section and defined by a pair of substantially straight relatively 41 short end portions disposed at an angle of approximately 130 degrees to each other and each extending from an adjacent end of a die face, and said grooves receiving flash resulting from pressing of the fitting and impart- 5 ing thereto a 'bead formation conforming to the grooves.
References Cited in the file of this patent UNITED STATES PATENTS 758,195 Schweinert et a1. Apr. 26, 1904 10 2,144,231 Schwarz Jan. 17, 1939 2,583,625 Bergan Jan. 29, 1952 2,693,216 Kerchner Nov. 2, 1954
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3052276X | 1959-06-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3052276A true US3052276A (en) | 1962-09-04 |
Family
ID=10920600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US21347A Expired - Lifetime US3052276A (en) | 1959-06-16 | 1960-04-11 | Pressing of fittings onto wire or wire rope |
Country Status (2)
Country | Link |
---|---|
US (1) | US3052276A (en) |
DE (1) | DE1255617B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3792603A (en) * | 1972-07-26 | 1974-02-19 | Glaenzer Spicer Sa | Apparatus for assembling two parts into interlocked and interfitting relationship |
US5253506A (en) * | 1988-01-19 | 1993-10-19 | The Gates Rubber Company | Crimping apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US758195A (en) * | 1902-08-02 | 1904-04-26 | George H F Schrader | Machine for contracting ferrules, &c. |
US2144231A (en) * | 1937-03-04 | 1939-01-17 | Ernest I Schwarz | Die for fastening sleeves on cables or rods |
US2583625A (en) * | 1946-10-29 | 1952-01-29 | Thomas & Betts Corp | Method of and tool for crimping tubes |
US2693216A (en) * | 1951-10-11 | 1954-11-02 | Aircraft Marine Prod Inc | Tool for electrical connectors |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1492984A (en) * | 1923-05-02 | 1924-05-06 | Humphreys John | Combination tool |
US2002502A (en) * | 1932-12-15 | 1935-05-28 | Harry A Douglas | Swaging machine |
US2079498A (en) * | 1934-06-28 | 1937-05-04 | Harry A Douglas | Compressing tool |
US2233736A (en) * | 1937-11-17 | 1941-03-04 | Nat Tube Co | Method of making tubular workpieces |
US2369730A (en) * | 1942-06-12 | 1945-02-20 | Gustaf L Fisk | Method of rolling metal bars |
US2400690A (en) * | 1943-08-19 | 1946-05-21 | Gustaf L Fisk | Method of rolling metal bars |
-
1960
- 1960-04-11 US US21347A patent/US3052276A/en not_active Expired - Lifetime
- 1960-05-25 DE DEB57988A patent/DE1255617B/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US758195A (en) * | 1902-08-02 | 1904-04-26 | George H F Schrader | Machine for contracting ferrules, &c. |
US2144231A (en) * | 1937-03-04 | 1939-01-17 | Ernest I Schwarz | Die for fastening sleeves on cables or rods |
US2583625A (en) * | 1946-10-29 | 1952-01-29 | Thomas & Betts Corp | Method of and tool for crimping tubes |
US2693216A (en) * | 1951-10-11 | 1954-11-02 | Aircraft Marine Prod Inc | Tool for electrical connectors |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3792603A (en) * | 1972-07-26 | 1974-02-19 | Glaenzer Spicer Sa | Apparatus for assembling two parts into interlocked and interfitting relationship |
US5253506A (en) * | 1988-01-19 | 1993-10-19 | The Gates Rubber Company | Crimping apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE1255617B (en) | 1967-12-07 |
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