DD140947A1 - Method and device for mass production of connecting - Google Patents
Method and device for mass production of connecting Download PDFInfo
- Publication number
- DD140947A1 DD140947A1 DD21000578A DD21000578A DD140947A1 DD 140947 A1 DD140947 A1 DD 140947A1 DD 21000578 A DD21000578 A DD 21000578A DD 21000578 A DD21000578 A DD 21000578A DD 140947 A1 DD140947 A1 DD 140947A1
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- conductor
- height
- diameter
- gesenkrinne
- pressing
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000004020 conductors Substances 0.000 claims abstract description 62
- 238000003825 pressing Methods 0.000 claims description 19
- 238000000034 methods Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 claims description 4
- 235000020127 ayran Nutrition 0.000 claims description 3
- 230000003068 static Effects 0.000 claims description 3
- 239000000463 materials Substances 0.000 abstract description 8
- 239000002585 bases Substances 0.000 description 5
- 241000282898 Sus scrofa Species 0.000 description 4
- 239000002184 metals Substances 0.000 description 4
- 229910052751 metals Inorganic materials 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 231100000078 corrosive Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melts Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound 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[Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
Method and apparatus for mass production of Connection "''ends;,
Field of application of the invention
The invention relates to a method and apparatus for mass production of terminal ends of insulated leads and automotive power lines.
Characteristic of the known technical solutions
In mass production of prefabricated cables, a considerable part of the stripped cable ends is tinned in order to prevent the shearing off of individual wires and thus a reduction of the respective strand cross section. To improve this known method has been proposed in DE-OS 26 06 to heat the cut, stripped cable ends higher than the flow temperature of a soldering material and dip in a metal bath to then with heated pressing tools to flat, perforated or cylindrical Zabelschuhen too to form.
Furthermore, in DE-OS 24 42 954 has been proposed to compact bare strands by resistance heating and pressure to cable lugs with flat, parallel pads and trained mounting holes. The main deficiency of the known tin-plating processes is that they require considerable quantities of soldering materials, in particular tin, which also increase the contact resistance between strands and connecting elements. The productivity of these processes is substantially reduced by the interval-like interruptions for cleaning the metal melts
210 005
Hot-compacting stranded wires into flat parallel-pad terminals requires annealing the conductor material again, which limits the application to bare strands ο
Object of the invention
The object of the invention is to find a new method and a new apparatus for mass production of isolated terminal ends, whereby material is saved and the productivity is increased. ,
Explanation of the invention of the invention
The object of the invention is to develop a method and a device which require no soldering materials and no further annealing and in which the contact resistances between strands and connecting elements are reduced.
According to the invention this object is achieved in that the conductor at the end face of its stripped end compacted by pressing in a rectangular shape with the width of a conductor diameter to about one third of ÜTennquerschnittes and the individual wires of the conductor are thereby connected by cold press welding, this reduced cross-section along the conductor during a certain distance at a pitch angle <.45 ° on the Lennquerschnitt passes and is maintained over a certain distance, which corresponds to the length of two parallel contact surfaces for Schraub * - and clamping connections. This deformed part of the conductor goes over the conductor diameter with a certain pitch angle. The amount of material displaced from the end face of the conductor during pressing is in part pushed into the last-mentioned deformed portion of the conductor, the hardening of the metal associated with the deformation process being so gradual that no sharp transition from the hard to the soft state results, leading to breakage can lead. This eliminates the need for re-annealing the conductor with the risk of thermally damaging the insulation at the terminal end.
The Ansehlußende is held centrally during the pressing and smoothly sheared by a cutting edge with stop on the face and limited. According to another feature of the invention, the compacted cross-section at the end face of the conductor with a certain pitch angle increases conically to the conductor diameter, wherein the tan of the pitch angle is less than the average coefficient of static friction / a of the conductor surface. ,
The device according to the invention consists of a concave Preßwerkzeugunterteil with a rectangular cross-section Gesenkrinne with the width equal to or smaller than the conductor diameter and the height equal to or greater than the conductor diameter. The length of the Gesenkrinne corresponds to the length of the conductor end to be deformed. The Gesenkrinne is preferably widened trapezoidal in the upper part. The device further consists of an engageable in the Gesenkrinne convex Preßwerkzeugoberteil whose punch width is equal to or smaller than the width of the Gesenkrinne and whose pressing surface, starting at the end face of the conductor, according to the degrees of deformation of the individual conductor sections is elaborated
According to the invention, a cutting edge with stop is provided on the pressing tool upper part. At the end of the Gesenkrinne a recess corresponding to the outer diameter of the insulated conductor is incorporated. On the punch an axially symmetrical recess is also provided corresponding to the outer diameter, said recess is non-positively connected to the pressing tool upper part by means of a compression spring movable. The device is structurally designed so that press in the final phase of the pressing frictionally directed pressure surfaces on Preßwerkzeugunter- and -obererteil each other. Another feature of the invention is that the Gesenkrinne is composed of two parts in the longitudinal direction.
The advantages of the invention are, above all, the considerable saving of material and increase in productivity and the lower contact resistance of the enlarged, bare contact surfaces.
- * -. 210 005
The conical flat plug shape obtained in a particular embodiment by the pressing of the conductor allows frictional, hal & are compounds whose mechanism of action is derived from the wedge principle.
These conical connections are superior to the commonly used plug and socket connections with parallel, flat contact surfaces under prolonged mechanical and corrosive stress by an additional decrease of the contact resistance. 4th,
embodiment
The invention will be described in more detail by way of examples with reference to schematic representations, wherein the following cross sections are shown:
Fig.l: A stranded conductor in its original form. FIG. 2: A rectangular cross section of the same conductor
Ladder Figo3i A condensed and reduced face of a ladder
Fig.4i A cross section along a compressed conductor Fige5i A cross section along a compacted conductor with
a conical contact surface Fig.6: A pressing tool on the face of the conductor before the pressing process
Fig.7i The press tool after the press Fige8: A cross-section of the press tool along the compacted conductor
In FIGS. 1 to 3, the cross-sectional proportions of a stranded conductor are shown in its original shape, its deformed conductor cross-section A and its compacted and reduced end face
For a conductor with a Mennquerschnitt of 1.5 mm at the end face of the compacted conductor, the height 3 is about 0.3 mm and the conductor diameter 1 is about 1.7 mm, which a Ver. degree of deformation of $ 94 corresponds to the degree of deformation required for cold-pressure welding. $ 68 for copper far exceeds.
-5- 210.005
This compaction of the conductor is in Pig.4 along a distance 2 of 2 mm with the pitch angle -4 of about 17 ° gradually up to the nominal cross-section with the height 5 of 0.9 mm, the height of the nominal cross section A 5 divided by the conductor diameter 1 corresponds. Along a distance 6 of about 6 mm, this deformation is maintained with the height 5, so that two parallel contacting surfaces with a width of 1.7 mm and a length of 6 mm arise o
During a distance 7 of almost 3 mm, the latter cross-sectional deformation merges with the pitch angle 4 to the conductor diameter 1. In order to prevent the flow of the pressed metal beyond the end face, a stop is provided there. The terminal end is held centrally on the insulating sleeve
In a particular embodiment, in Pig.5 the height increases with the pitch angle 8 to the conductor diameter 1. At a static friction coefficient / u = 0.3 tan 8 = 0.125 is selected, so that the pitch angle is 8 = 7 °. The distance 9 of the conical rise from 0.3 to 1.7 mm is about 11 now «
In Figs. 6 and 7, a press tool is shown on the end face of the conductor before and after the pressing operation. Here, the Gesenkrinne in Preßwerkzeugunterteil 18 in the base of the width 10 of 1.7 mmj the height 11 is chosen to be 2 mm j the length 9 is in both embodiments of the conductor compaction 11 mm. Above the height 5 the Gesenkrinne is widened trapezoidal to facilitate the insertion of the conductor. The convex pressing tool upper part 19 has on the end face of the Gesenkrinne a stamp with the base width 12 of 1.65 mm.
In Pig. 8, the pressing surface 13 of this punch along the Gesenkrinne increases according to the degrees of compaction of the individual conductor sections by the height difference of 1.4 mm, while the base 14 of the Gesenkrinne just stretched
210 005
Here cutting edge with stop 15 of the Preßwerkzeugoberteils 19 on the end face of the Gesenkrinne and the recess 16 in the Preßwerkzeugunterteil 18 are also shown in section of I igo8. A corresponding recess is also provided on the opposite side and connected by a compression spring 21 kraftSchlussig movable with the Preßwerkzeugoberteil. When the bases of the die groove and the punch 20 at the end face of the die groove are 0.3 mm apart during pressing, further approximation and compression of the conductor is prevented by frictional, oppositely directed pressure surfaces 17 of the die lower and upper parts, which in the 7 are shown.
The Preßwerkzeugunterteil 18 in the Pig.6 and 7 is composed of two parts in the longitudinal direction, one of the base 14 of the Gesenkrinne and a side wall and the other consists of only one side wall.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD21000578A DD140947A1 (en) | 1978-12-21 | 1978-12-21 | Method and device for mass production of connecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD21000578A DD140947A1 (en) | 1978-12-21 | 1978-12-21 | Method and device for mass production of connecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD140947A1 true DD140947A1 (en) | 1980-04-02 |
Family
ID=5516027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD21000578A DD140947A1 (en) | 1978-12-21 | 1978-12-21 | Method and device for mass production of connecting |
Country Status (1)
| Country | Link |
|---|---|
| DD (1) | DD140947A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104335423A (en) * | 2012-05-23 | 2015-02-04 | 株式会社自动网络技术研究所 | Electric wire with terminal, method for manufacturing same, and jig |
| CN105009384A (en) * | 2013-02-23 | 2015-10-28 | 古河电气工业株式会社 | Wire crimping device and wire crimping method |
-
1978
- 1978-12-21 DD DD21000578A patent/DD140947A1/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104335423A (en) * | 2012-05-23 | 2015-02-04 | 株式会社自动网络技术研究所 | Electric wire with terminal, method for manufacturing same, and jig |
| CN105009384A (en) * | 2013-02-23 | 2015-10-28 | 古河电气工业株式会社 | Wire crimping device and wire crimping method |
| CN105009384B (en) * | 2013-02-23 | 2017-07-14 | 古河电气工业株式会社 | Electric wire crimp device and electric wire crimp method |
| US10250001B2 (en) | 2013-02-23 | 2019-04-02 | Furukawa Electric Co., Ltd. | Wire crimping device |
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| EPE | Extended patent has ceased |