CN214069056U - Tool for avoiding wire breakage of locomotive large wire press connection - Google Patents
Tool for avoiding wire breakage of locomotive large wire press connection Download PDFInfo
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- CN214069056U CN214069056U CN202120196408.6U CN202120196408U CN214069056U CN 214069056 U CN214069056 U CN 214069056U CN 202120196408 U CN202120196408 U CN 202120196408U CN 214069056 U CN214069056 U CN 214069056U
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- pressing plate
- wire
- upper pressing
- tool
- lower pressing
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Abstract
A tool for avoiding large-line press connection and wire breakage of a locomotive comprises an upper pressing plate and a lower pressing plate; the upper pressing plate is fixedly connected to the end head of the telescopic rod above the special press, and the pressing surface of the upper pressing plate is arranged into a concave structure; the lower pressing plate is fixed on a positioning base of the special press workbench, and the pressing surface of the lower pressing plate is in an arc shape; the upper pressing plate and the lower pressing plate are both made of 12CrMoV alloy structural steel, the lower pressing plate is arranged right below the upper pressing plate, the pressing surface corresponds to the pressing surface of the upper pressing plate, and the centers of the pressing surfaces coincide. When the upper pressing plate and the lower pressing plate of the tool are pressed, the wire terminal deforms, the copper wire is extruded to the concave part of the upper pressing plate, the phenomenon that the copper wire is directly broken due to pressure stretching of the copper wire is avoided, meanwhile, the concave structure and the reasonable pressing depth of the upper pressing plate enable the pressing points to be added on the pressing surface of the large wire terminal, and after the large wire is pressed, due to plastic rebound, the phenomenon that the large wire of a locomotive is extruded and stretched is relieved, and the faults of the large wire terminal are reduced.
Description
Technical Field
The utility model belongs to the technical field of rail vehicle overhauls, concretely relates to a frock for avoiding the disconnected silk of big line terminal crimping of locomotive.
Background
The contact surface of the locomotive large-wire terminal crimping die used by the enterprise is small, only one crimping point is provided, as shown in fig. 4, the die is made of No. 45 steel, after 1 year of application, the crimping point is seriously deformed, and after one crimping point is pressed in, the wire breakage rate of a newly manufactured large-wire terminal is very high. The large wire has more broken wires, and the large wire terminal has large contact resistance when the locomotive runs, so that the temperature of the large wire is increased, the fire fault rate is increased, and potential safety hazards are brought to the running of the locomotive.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an avoid frock of disconnected silk of locomotive big line terminal crimping, the mould of this frock adopts 12CrMoV alloy structure steel, and the crimping face of mould top board sets to the spill structure for crimping point when the crimping increases, has effectively avoided the disconnected silk phenomenon of locomotive big line terminal crimping.
The purpose of the utility model can be realized by adopting the following technical scheme: a tool for preventing a large wire terminal of a locomotive from being broken by compression joint comprises an upper pressing plate and a lower pressing plate, wherein the upper pressing plate is arranged at the end head of a telescopic rod above a special press and is fixedly connected with the telescopic rod through spot welding, and a compression joint surface of the upper pressing plate is arranged into a concave structure; the lower pressing plate is arranged on a positioning base of the special press workbench and is fixedly connected with the positioning base through spot welding, and the pressing surface of the lower pressing plate is arc-shaped.
The compression depth of the upper pressure plate compression joint surface is 10mm, the concave depth is 5 mm, and the concave width is 8 mm.
And the plastic rebound depth of the upper pressing plate is 3-6 mm after the large wire terminal is pressed and connected.
The lower pressing plate is arranged right below the upper pressing plate, the pressing surface of the lower pressing plate corresponds to the pressing surface of the upper pressing plate, and the centers of the pressing surfaces coincide.
The arc shape of the pressing surface of the lower pressing plate is matched with the arc shape of the bottom surface of the large wire terminal.
The upper pressure plate and the lower pressure plate are both made of 12CrMoV alloy structural steel.
The utility model discloses a when using, the circular arc crimping face of holding down plate is put into to big line terminal bottom arc surface that will assemble, starts the press button, lets top board and holding down plate pressfitting completely, then loosens the press, and big line terminal crimping is accomplished.
The utility model has the advantages that: as shown in fig. 6, when the lower pressing plate is pressed on the existing die, the wire terminals deform, the copper wire is extruded and stretched, and part of the copper wire is directly broken due to excessive pressing and stretching exceeding the limit. Compared with the prior art, the utility model discloses the frock is when the crimping, and the line terminal warp, and the copper wire line will be extruded to supreme clamp plate spill department, has avoided the copper wire pressure to stretch direct disconnected silk phenomenon, has increased the crimping point on the big line terminal crimping face simultaneously because of the top board sets to the spill structure, reasonable in design's crimping degree of depth, big line crimping is accomplished the back, because plasticity bounce-back avoids the disconnected silk of big line terminal crimping of locomotive, has reduced the fault rate of big line terminal.
Drawings
FIG. 1 is a schematic view of a crimp connection terminal of the present invention;
FIG. 2 is a schematic front view of the upper platen of the present invention;
fig. 3 is a schematic top view of the upper platen of the present invention;
fig. 4 is a schematic front view of the lower press plate of the present invention;
FIG. 5 is a schematic front view of an upper platen of a prior art mold;
FIG. 6 is a schematic view of a conventional die for crimping a large wire terminal;
in the figure: 1. An upper pressing plate 2, a lower pressing plate 3 and a large wire terminal.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, 2, 3, 4, 5 and 6, a tooling for preventing a large wire terminal of a locomotive from being broken by crimping comprises an upper pressing plate 1 and a lower pressing plate 2; the upper pressing plate 1 and the lower pressing plate 2 are both made of 12CrMoV alloy structural steel, and the hardness and elasticity of the upper pressing plate and the lower pressing plate are ensured to be better; the upper pressing plate 1 is arranged at the end head of the telescopic rod above the special press and is fixedly connected with the telescopic rod through spot welding, the pressing surface of the upper pressing plate 1 is of a concave structure, the compression depth of the pressing surface is 10mm, the concave depth is 5 mm, the concave width is 8 mm, and the plastic rebound depth of the upper pressing plate 1 is 3-6 mm after the large wire terminal 3 is pressed, so that the pressing points of the pressing surface are increased, and the reasonable pressing depth and the plastic rebound depth can avoid the fracture of the large wire of the locomotive; the lower pressing plate 2 is arranged on a positioning base of a special press workbench and corresponds to the position under the upper pressing plate 1, the centers of the upper pressing plate and the lower pressing plate are superposed, the lower pressing plate 2 is fixedly connected with the positioning base through spot welding, the pressing surface of the lower pressing plate is in an arc shape, and the arc shape is matched with the arc shape of the bottom surface of the large wire terminal 3, so that the large wire terminal 3 can be conveniently positioned.
The specific operation process of the utility model is as follows: the assembled circular arc surface at the bottom of the large wire terminal 3 is placed into the circular arc crimping surface of the lower pressing plate 2, the press button is started, the upper pressing plate 1 is driven by the telescopic rod of the press to press the lower pressing plate 2 completely, then the press starting button is loosened, the upper pressing plate 1 is lifted along with the telescopic rod, and the crimping process of the large wire terminal 3 is completed.
The utility model discloses a have utilized 2 years at this company, the quality problems do not appear in the locomotive large-scale line maintenance, and is respond well, the suggestion popularization.
Claims (6)
1. The utility model provides an avoid frock of locomotive large-size line crimping disconnected silk, includes top board (1) and holding down plate (2), characterized by: the upper pressing plate (1) is arranged at the end head of the telescopic rod above the special press and is fixedly connected with the telescopic rod through spot welding, and the pressing surface of the upper pressing plate (1) is arranged into a concave structure; the lower pressing plate (2) is arranged on a positioning base of the special press workbench and is fixedly connected with the positioning base through spot welding, and the pressing surface of the lower pressing plate (2) is in an arc shape.
2. The tool for avoiding the large-line press connection and wire breakage of the locomotive according to claim 1, which is characterized in that: the compression depth of the compression joint surface of the upper pressure plate (1) is 10mm, the concave depth is 5 mm, and the concave width is 8 mm.
3. The tool for avoiding the large-line press connection and wire breakage of the locomotive according to claim 1, which is characterized in that: the plastic rebound depth of the upper pressing plate (1) is 3-6 mm after the large wire terminal (3) is pressed and connected.
4. The tool for avoiding the large-line press connection and wire breakage of the locomotive according to claim 1, which is characterized in that: the lower pressing plate (2) is arranged under the upper pressing plate (1), the pressing surface of the lower pressing plate (2) corresponds to the pressing surface of the upper pressing plate (1), and the centers of the pressing surfaces coincide.
5. The tool for avoiding the large-line press connection and wire breakage of the locomotive according to claim 1, which is characterized in that: the arc shape of the pressing surface of the lower pressing plate (2) is matched with the arc shape of the bottom surface of the large wire terminal (3).
6. The tool for avoiding the large-line press connection and wire breakage of the locomotive according to claim 1, which is characterized in that: the upper pressing plate (1) and the lower pressing plate (2) are both made of 12CrMoV alloy structural steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120196408.6U CN214069056U (en) | 2021-01-25 | 2021-01-25 | Tool for avoiding wire breakage of locomotive large wire press connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120196408.6U CN214069056U (en) | 2021-01-25 | 2021-01-25 | Tool for avoiding wire breakage of locomotive large wire press connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214069056U true CN214069056U (en) | 2021-08-27 |
Family
ID=77394010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120196408.6U Active CN214069056U (en) | 2021-01-25 | 2021-01-25 | Tool for avoiding wire breakage of locomotive large wire press connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214069056U (en) |
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2021
- 2021-01-25 CN CN202120196408.6U patent/CN214069056U/en active Active
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