CN110829140A - Special crimping mould of electricity connection - Google Patents
Special crimping mould of electricity connection Download PDFInfo
- Publication number
- CN110829140A CN110829140A CN201911078774.5A CN201911078774A CN110829140A CN 110829140 A CN110829140 A CN 110829140A CN 201911078774 A CN201911078774 A CN 201911078774A CN 110829140 A CN110829140 A CN 110829140A
- Authority
- CN
- China
- Prior art keywords
- die
- crimping
- clamp
- lower die
- elastic positioning
- 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.)
- Granted
Links
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
- H01R43/048—Crimping apparatus or processes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention discloses a crimping die special for electric connection, which comprises a binding clip, an upper die, an elastic positioning clamp, a lower die, a guide mechanism and a hydraulic cylinder, wherein the guide mechanism and the elastic positioning clamp are arranged to realize the accurate positioning of the crimping process of a contact wire on a lower die and an electric connection wire clamp, so that the crimping failure rate of the electric connection wire clamp is reduced, the labor intensity of an operator is reduced, the service life of the contact wire is prolonged, and the guarantee is provided for the safe operation of a high-speed rail.
Description
Technical Field
The invention relates to the technical field of electrified railways, in particular to a special die for electric connection.
Background
The rapid development of the electrified railway, and related industrial chains related to the construction and maintenance of electrified lines also need to be developed with time. The installation of the contact network cable in the electrified line construction is taken as a key component part, the installation efficiency and reliability of the whole line are related, and only if the reliable quality and the long service life of the wire clamping part of the contact network cable are ensured, a power source can be provided for the safe operation of the whole line. The installation of contact cable all is on-spot high altitude construction crimping electric connection fastener, adopts special mould among the hydraulic tong head to realize the crimping, and crimping quality problem appears in this kind of mode at present is higher, and the operator starts hydraulic system immediately and carries out the operation because of special mould can not right the contact wire, causes electric connection fastener and contact wire draw-in groove contact not in place, appears the cable frequently and drops or become flexible.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the special crimping die for electric connection, which can fix the position of a contact wire and ensure that a lower die moves upwards and does not deviate.
In order to achieve the purpose, the invention adopts the following technical scheme:
a crimping die special for electric connection comprises a binding clip, an upper die, an elastic positioning clamp, a lower die and a hydraulic cylinder;
the upper die is fixed on the upper part of the binding clip, and the lower die is arranged on the binding clip in a vertically movable manner and is positioned below the upper die; a guide mechanism is arranged in the binding clip and used for limiting the up-and-down movement track of the lower die; the lower part of the lower die is connected with a hydraulic cylinder, and the hydraulic cylinder can drive the lower die to move up and down; the elastic positioning clamp is provided with a hollow inner cavity which is communicated with the front and the back, and the top of the hollow inner cavity is provided with an opening; the lower die is provided with a clamping groove, the elastic positioning clamp is fixed in the clamping groove, a space for the elastic positioning clamp to move up and down is formed in the clamping groove, the top of the hollow inner cavity extends out of the clamping groove in a state of not being affected by external force, and when the elastic positioning clamp moves downwards in the clamping groove, inner walls on two sides of the clamping groove generate inward pressure on two sides of the hollow inner cavity; the hollow inner cavity is used for detachably clamping and fixing a thread clamp and a contact wire of the electric connecting wire clamp.
Furthermore, the inner wall of the hollow inner cavity is sequentially provided with a one-position cambered surface and a two-position cambered surface from top to bottom, and the one-position cambered surface is matched with the end part of the threaded clamp in shape and used for detachably clamping the end part of the threaded clamp; the two-position cambered surface is matched with the shape of the lower part of the contact wire and is used for clamping the lower part of the contact wire in a separable connection mode.
Furthermore, the lower part of the elastic positioning card is also provided with a fixing hole, the fixing hole is a long hole extending along the vertical direction, and a fixing bolt penetrates through the fixing hole to connect the elastic positioning card with the lower die.
Furthermore, the elastic positioning card is made of spring steel.
Furthermore, the guide mechanism comprises a guide post and a guide hole which are matched, the guide post is arranged on the bottom surface of the upper die or the top surface of the lower die, and the guide hole is correspondingly arranged on the top surface of the lower die or the bottom surface of the upper die and corresponds to the position of the guide post.
Furthermore, the upper die is provided with a transverse pin shaft hole for a pin shaft to pass through, and the upper die is fixed on the upper part of the tong head by the pin shaft.
Further, the bottom surface of the upper die is provided with a U-shaped arc surface, the top surface of the lower die is provided with a crimping inclined surface, and the U-shaped arc surface and the crimping inclined surface are respectively used for being in contact fit with the upper top surface and the lower bottom surface of the electric connecting wire clamp during crimping.
Furthermore, the two sides of the lower die are respectively provided with an anti-rotation groove extending along the vertical direction, the two outer sides of the binding clip are respectively provided with a transverse anti-rotation screw, and one end of each anti-rotation screw at the two sides respectively extends into the anti-rotation grooves at the two sides of the lower die.
Furthermore, the upper die is made of high-strength alloy steel, and the surface of the upper die is subjected to quenching treatment to obtain high wear-resisting strength.
The invention has the beneficial technical effects that:
1. according to the invention, the arrangement of the guide mechanism and the elastic positioning card is adopted to realize the accurate positioning of the compression joint process of the lower die and the contact wire on the electric connection wire clamp, so that the compression joint failure rate of the electric connection wire clamp is reduced, the labor intensity of an operator is reduced, the service life of the contact wire is prolonged, and the guarantee is provided for the safe operation of a high-speed rail;
2. the anti-rotation screw is matched with the anti-rotation groove of the lower die, so that the lower die can be prevented from rotating when the lower die vertically moves, and the accuracy of the contact line compression joint process is improved.
Drawings
FIG. 1 is a schematic diagram of a die dedicated for electrical connection crimping in an embodiment of the present invention;
FIG. 2 is a schematic diagram of an upper mold structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a lower mold according to an embodiment of the present invention;
FIG. 4 is a schematic view of an embodiment of an elastic positioning clip.
Reference numerals:
a binding clip 1; an upper die 2; a pin shaft 3; an electrical connection clamp 4; a guide post 5; a screw clip 6; an elastic positioning clip 7; a lower mold 8; a fixing bolt 9; a contact wire 10; a two-position guide post 11; a hydraulic cylinder 12; an anti-rotation screw 13; an upper die guide hole 21; a two-position upper die guide hole 22; a pin shaft hole 23; a U-shaped arc surface 24; a one-bit arc 71; a two-position arc surface 72; a fixing hole 73; a lower die guide hole 81; a two-position lower die guide hole 82; an anti-rotation groove 83; an elastic positioning slot 84; crimping ramp 85.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the following examples are provided to illustrate the detailed embodiments and specific operations based on the technical solutions of the present invention, but the scope of the present invention is not limited to the examples.
Example 1
A crimping die special for electric connection is shown in figures 1-4 and comprises a binding clip 1, an upper die 2, a pin shaft 3, an elastic positioning clamp 7, a lower die 8 and a hydraulic cylinder 12;
the upper die 2 is fixed on the upper part of the binding clip 1, and the lower die 8 is arranged on the binding clip 1 in a vertically movable manner and is positioned below the upper die 2; a guide mechanism is arranged in the binding clip 1 and used for limiting the up-and-down movement track of the lower die 8; the lower part of the lower die 8 is connected with a hydraulic cylinder 12, and the hydraulic cylinder 12 can drive the lower die 8 to move up and down; the elastic positioning card 7 is provided with a hollow inner cavity which is communicated with the front and the back, and the top of the hollow inner cavity is provided with an opening; the lower die 8 is provided with a clamping groove 84, the elastic positioning clamp 7 is fixed in the clamping groove 84, a space for the elastic positioning clamp 7 to move up and down is formed in the clamping groove 84, the top of the hollow inner cavity extends out of the clamping groove 84 in a state of not being affected by external force, and when the elastic positioning clamp 7 moves down in the clamping groove 84, inner walls on two sides of the clamping groove 84 generate inward pressure on two sides of the hollow inner cavity; the hollow inner cavity is used for detachably clamping and fixing the thread clamp 6 and the contact wire 10 of the electric connecting wire clamp 4.
Further, as shown in fig. 4, a first-position arc surface 71 and a second-position arc surface 72 are sequentially arranged on the inner wall of the hollow inner cavity from top to bottom, and the first-position arc surface 71 is matched with the end part of the threaded clamp 6 in shape and used for detachably clamping the end part of the threaded clamp 6; the two-position arc surface 72 is matched with the shape of the lower part of the contact wire 10 and is used for detachably connecting and clamping the lower part of the contact wire 10.
In this embodiment, a fixing hole 73 is further formed in a lower portion of the elastic positioning clip 7, the fixing hole 73 is an elongated hole extending in the up-down direction, and the fixing bolt 9 penetrates through the fixing hole 73 to connect the elastic positioning clip 7 and the slot 84. The elastic positioning clip 7 can move in the clipping groove 84 within the length range of the fixing hole 73.
Still further, the elastic positioning clip 7 can be made of spring steel.
Further, the guiding mechanism comprises a guiding column and a guiding hole which are matched, the guiding column is arranged on the bottom surface of the upper die 2 or the top surface of the lower die 8, and the guiding hole is correspondingly arranged on the top surface of the lower die 8 or the bottom surface of the upper die 2 and corresponds to the guiding column in position.
In the present embodiment, the guide posts include a one-position guide post 5, a two-position guide post 11, a one-position upper die guide hole 21, a two-position upper die guide hole 22, a one-position lower die guide hole 81, and a two-position lower die guide hole 82.
The arrangement of the first guiding post 5 and the second guiding post 11 can be as follows: one of the one-position guide post 5 and the two-position guide post 11 is provided on the bottom surface of the upper mold 2 and the other is provided on the top surface of the lower mold 8, or both the one-position guide post 5 and the two-position guide post 11 are provided on the bottom surface of the upper mold 2 or the top surface of the lower mold 8.
When one of the one-position guide post 5 and the two-position guide post 11 is selected to be disposed on the bottom surface of the upper mold 2 and the other is selected to be disposed on the top surface of the lower mold 8, as shown in fig. 1 of this embodiment 1, the one-position guide post 5 is disposed on one side of the bottom surface of the upper mold 2, and the two-position guide post 11 is disposed on the other side of the top surface of the lower mold 8, such that one end of the one-position guide post 5 is disposed in the two-position upper mold guide hole 22 of the upper mold 2, one end of the two-position guide post 11 is disposed in the one-position lower mold guide hole 81 of the lower mold 8, the one-position upper mold guide hole 21 of the upper mold 2 corresponds to the two-position guide post 11, and the two-position lower mold guide hole 82.
When the one-position guide post 5 and the two-position guide post 11 are selected to be arranged on the bottom surface of the upper mold 2 or the top surface of the lower mold 8, the one-position guide post 5 and the two-position guide post 11 can be respectively arranged in the one-position upper mold guide hole 21 and the two-position upper mold guide hole 22 arranged on the bottom surface of the upper mold 2, or respectively arranged in the one-position lower mold guide hole 81 and the two-position lower mold guide hole 82 arranged on the top surface of the lower mold 8, and correspondingly, the one-position guide post 5 and the two-position guide post 11 respectively correspond to the one-position lower mold guide hole 81 and the two-position lower mold guide hole 82, or respectively correspond to the one-position upper mold guide hole 21 and the two-position upper mold guide hole 22.
In this embodiment, the upper mold 2 is provided with a transverse pin shaft hole 23 for the pin shaft 3 to pass through, and is fixed on the upper portion of the binding clip 1 by the pin shaft 3.
Furthermore, the bottom surface of the upper die 2 is provided with a U-shaped arc surface 24, the top surface of the lower die 8 is provided with a crimping inclined surface 85, and the U-shaped arc surface 24 and the crimping inclined surface 85 are respectively used for contacting and attaching with the upper top surface and the lower bottom surface of the electrical connection wire clamp 4 during crimping. The U-shaped arc 24 and the crimping ramp 85 act as a shaped surface for electrically connecting the clip 4.
Furthermore, as shown in fig. 3, two sides of the lower mold 8 are respectively provided with an anti-rotation groove 83 extending in the vertical direction, two outer sides of the binding clip 1 are respectively provided with a transverse anti-rotation screw 13, and one end of each anti-rotation screw 13 extends into each anti-rotation groove 83 of the lower mold 8. This arrangement can prevent the lower mold 8 from rotating.
In this embodiment, the upper mold 2 is made of high-strength alloy steel, and is quenched to obtain high wear resistance on the surface.
When the lower die 8 is in the original position, the opening of the hollow inner cavity of the elastic positioning clamp 7 is in a completely opened state, the threaded clamp 6 of the electric connecting wire clamp 4 is clamped inside the V-shaped groove on the outer side of the upper part of the contact wire 10, and the electric connecting wire clamp 4 is pressed on the outer side of the threaded clamp 6. Then the screw clamp and the contact wire 10 are put into the hollow cavity of the elastic positioning card 7 together, so that the one-bit cambered surface 71 of the hollow cavity clamps the end part of the screw clamp 6, and the two-bit cambered surface 72 is matched and attached with the lower part of the contact wire 10. During crimping, the hydraulic cylinder 12 is started, the hydraulic cylinder 12 drives the lower die 8 to move upwards, and the elastic positioning clamp 7 moves upwards along with the lower die 8. When the top of the hollow inner cavity is contacted with the top surface of the upper die 2, the pressure of the upper die 2 moves downwards in the clamping groove 84, the inner walls on two sides of the clamping groove 84 generate pressure on two sides of the hollow inner cavity, the hollow inner cavity can clamp the contact line 10 and the thread clamp 6 without deviation, and accurate positioning of crimping is guaranteed. After the crimping is finished, the hydraulic cylinder 12 drives the lower die 8 to move downwards, and the opening at the top of the hollow inner cavity is reopened and extends out of the clamping groove 84 under the elastic action after the external force applied by the upper die 2 is lost, so that the lower die is separated from the electric connecting wire clamp 4. The electric connecting clamp 4, the threaded clamp 6 and the contact line 10 are railway standard fittings.
In this embodiment, when the lower mold 8 moves upward, the one-position guide post 5 enters the two-position lower mold guide hole 82, and the two-position guide post 11 enters the one-position lower mold guide hole 21, so that the lower mold moves along the one-position guide post 5 and the two-position guide post 11, and the lower mold is ensured not to shift in the upward movement process.
Various corresponding changes and modifications can be made by those skilled in the art based on the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.
Claims (9)
1. A crimping die special for electric connection is characterized by comprising a binding clip (1), an upper die (2), an elastic positioning clamp (7), a lower die (8) and a hydraulic cylinder (12);
the upper die (2) is fixed on the upper part of the tong head (1), and the lower die (8) is arranged on the tong head (1) in a vertically movable manner and is positioned below the upper die (2); a guide mechanism is arranged in the tong head (1) and used for limiting the up-and-down movement track of the lower die (8); the lower part of the lower die (8) is connected with a hydraulic cylinder (12), and the hydraulic cylinder (12) can drive the lower die (8) to move up and down; the elastic positioning card (7) is provided with a hollow inner cavity which is communicated with the front and the back, and the top of the hollow inner cavity is provided with an opening; the lower die (8) is provided with a clamping groove (84), the elastic positioning clamp (7) is fixed in the clamping groove (84), a space for the elastic positioning clamp (7) to move up and down is formed in the clamping groove (84), the top of the hollow inner cavity extends out of the clamping groove (84) under the state of not being affected by external force, and when the elastic positioning clamp (7) moves downwards in the clamping groove (84), the inner walls of two sides of the clamping groove (84) generate inward pressure on two sides of the hollow inner cavity; the hollow inner cavity is used for detachably clamping and fixing a thread clamp (6) and a contact wire (10) of the electric connecting wire clamp (4).
2. The special crimping die for electric connection as claimed in claim 1, wherein a first arc surface (71) and a second arc surface (72) are sequentially arranged on the inner wall of the hollow inner cavity from top to bottom, and the first arc surface (71) is matched with the end part of the threaded clamp (6) in shape and is used for detachably clamping the end part of the threaded clamp (6); the two-position cambered surface (72) is matched with the shape of the lower part of the contact wire (10) and is used for clamping the lower part of the contact wire (10) in a separable connection mode.
3. The crimping die special for electric connection as claimed in claim 1 or 2, wherein a fixing hole (73) is further formed in the lower portion of the elastic positioning clip (7), the fixing hole (73) is an elongated hole extending in the up-down direction, and a fixing bolt (9) penetrates through the fixing hole (73) to connect the elastic positioning clip (7) and the lower die (8).
4. The crimping die special for electric connection as claimed in claim 1, wherein the elastic positioning clip (7) is made of spring steel.
5. The crimping die special for electrical connection as claimed in claim 1, wherein the guiding mechanism comprises matching guiding posts and guiding holes, the guiding posts are arranged on the bottom surface of the upper die (2) or the top surface of the lower die (8), and the guiding holes are correspondingly arranged on the top surface of the lower die (8) or the bottom surface of the upper die (2) and correspond to the positions of the guiding posts.
6. The crimping die special for electric connection as claimed in claim 1, wherein the upper die (2) is provided with a transverse pin shaft hole (23) for a pin shaft (3) to pass through and is fixed on the upper part of the binding clip (1) by the pin shaft (3).
7. The special crimping die for electrical connection according to claim 1, wherein the bottom surface of the upper die (2) is provided with a U-shaped arc surface (24), the top surface of the lower die (8) is provided with a crimping inclined surface (85), and the U-shaped arc surface (24) and the crimping inclined surface (85) are respectively used for contacting and fitting with the upper top surface and the lower bottom surface of the electrical connecting wire clamp (4) during crimping.
8. The special crimping die for electric connection according to claim 1, wherein the two sides of the lower die (8) are respectively provided with an anti-rotation groove (83) extending along the vertical direction, the two outer sides of the binding clip (1) are respectively provided with a transverse anti-rotation screw (13), and one end of each anti-rotation screw (13) at the two sides respectively extends into the anti-rotation groove (83) at the two sides of the lower die (8).
9. The crimping die special for electric connection as claimed in claim 1, wherein the upper die (2) is made of high-strength alloy steel and is quenched to obtain high wear-resistant strength on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911078774.5A CN110829140B (en) | 2019-11-07 | 2019-11-07 | Special crimping mould of electricity connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911078774.5A CN110829140B (en) | 2019-11-07 | 2019-11-07 | Special crimping mould of electricity connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110829140A true CN110829140A (en) | 2020-02-21 |
| CN110829140B CN110829140B (en) | 2021-03-26 |
Family
ID=69552962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911078774.5A Active CN110829140B (en) | 2019-11-07 | 2019-11-07 | Special crimping mould of electricity connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110829140B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072439A (en) * | 2020-09-02 | 2020-12-11 | 廊坊市永旺汽车部件有限公司 | Crimping tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356199A (en) * | 2015-12-01 | 2016-02-24 | 湖北三江航天红峰控制有限公司 | Lead crimping auxiliary device |
| CN107069372A (en) * | 2015-12-16 | 2017-08-18 | 矢崎总业株式会社 | Terminal press-connection device |
| CN206653952U (en) * | 2017-03-16 | 2017-11-21 | 四川龙腾铁路器材有限公司 | A kind of electric railway electrically connecting clamp for contact wire crimping, dismounting mould |
| CN209561838U (en) * | 2019-05-20 | 2019-10-29 | 郑州路驰机械设备有限公司 | A kind of conductor compression jointing easy mold release device |
-
2019
- 2019-11-07 CN CN201911078774.5A patent/CN110829140B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356199A (en) * | 2015-12-01 | 2016-02-24 | 湖北三江航天红峰控制有限公司 | Lead crimping auxiliary device |
| CN107069372A (en) * | 2015-12-16 | 2017-08-18 | 矢崎总业株式会社 | Terminal press-connection device |
| CN206653952U (en) * | 2017-03-16 | 2017-11-21 | 四川龙腾铁路器材有限公司 | A kind of electric railway electrically connecting clamp for contact wire crimping, dismounting mould |
| CN209561838U (en) * | 2019-05-20 | 2019-10-29 | 郑州路驰机械设备有限公司 | A kind of conductor compression jointing easy mold release device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072439A (en) * | 2020-09-02 | 2020-12-11 | 廊坊市永旺汽车部件有限公司 | Crimping tool |
| CN112072439B (en) * | 2020-09-02 | 2021-09-14 | 廊坊市永旺汽车部件有限公司 | Crimping tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110829140B (en) | 2021-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110829140B (en) | Special crimping mould of electricity connection | |
| CN204831903U (en) | Wire rope tensile testing machine anchor clamps of removable formula | |
| CN113258399B (en) | Wire crimping device and method | |
| CN113991532A (en) | Line live-line removal and lap joint drainage device | |
| CN104752988B (en) | Overhead transmission line takes electrical lead component and its operating mechanism | |
| KR20170136242A (en) | Separating tool | |
| CN107482533B (en) | High-altitude steel rope type hydraulic wire tightening device for power transmission line | |
| CN204614987U (en) | Overhead transmission line takes electrical lead component | |
| CN216362167U (en) | Insulating rod for quickly assembling and disassembling high-voltage puncture wire clamp | |
| CN210806287U (en) | Dropper wire copper nose crimping tool mechanism | |
| KR100659707B1 (en) | Jig for testing tensile force and compressive force of a trolly wire steady arm | |
| CN108281805A (en) | A kind of branch cable crimp connection fixture | |
| CN202026029U (en) | Conducting wire splitting clamp | |
| CN216289435U (en) | Crimping die for contact wire electric connecting clamp | |
| CN210978383U (en) | Quick connection mechanism of malleable steel chuck for hardware rigging | |
| KR101944071B1 (en) | Press type punching apparatus | |
| CN212254861U (en) | Screw tensile test device | |
| CN218212450U (en) | Automatic clamping device for single-stranded bare conductor tension test | |
| CN217890801U (en) | Safety cable pre-assembling die | |
| CN216738583U (en) | Anodic oxidation anchor clamps | |
| CN221227077U (en) | Assembled strain clamp and strain string for extra-high voltage transmission line engineering | |
| CN113675626B (en) | Wedge type wire connecting clamp | |
| CN220857477U (en) | Integrally formed cable middle head compression molding device | |
| CN218438845U (en) | Connecting assembly for automatic door | |
| CN213257605U (en) | Cable welding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |