CN105097271B - Semi-automatic cold weld pincers and assembly method for applying same to transformer lead - Google Patents
Semi-automatic cold weld pincers and assembly method for applying same to transformer lead Download PDFInfo
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- CN105097271B CN105097271B CN201510516607.XA CN201510516607A CN105097271B CN 105097271 B CN105097271 B CN 105097271B CN 201510516607 A CN201510516607 A CN 201510516607A CN 105097271 B CN105097271 B CN 105097271B
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Abstract
Semi-automatic cold weld pincers comprise a mounting plate. A stressing block and a movable block are fixedly arranged on the mounting plate, a plurality of notches are formed in the stress block, and the movable block is provided with pressing pincers matched with the notches. The movable block is clamped by a clamping piece, and the clamping piece is connected with an air cylinder. The semi-automatic cold weld pincers have the following advantages that under the condition of basically leveling cost, the cold weld efficiency is improved by about 5-6 times, cold solder joint, weld brittleness, overheating ageing, welding slag pollution and other quality problems can be avoided in cold weld, and the reliability and anti-short circuit ability of a transformer are greatly improved. Compared with a lead bonding process, staff do not need to be professionally trained, operation is simple and easy to learn, and production efficiency is improved.
Description
Technical field
The present invention relates to transformer lead technique mounting technology field, clamp particularly to a kind of semi-automatic cold weld；This
Bright further relate to the assembly method that above-mentioned semi-automatic cold weld pincers are used for transformer lead.
Background technology
The assembling of oil-filled transformer lead is divided into blanking, shaping, lead welding and four operations of insulation processing.For tradition
Lead welds, and removes lead-out wires of coil paint film with paint stripper, then builds length of lead-out wire, transformer is stood up to be transported to specified
Get angry area enter line lead welding, about 1400 DEG C of welding edge flame temperature, welding help material phosphor-copper welding rod, but this technique is due to operation temperature
Spend higher, the easy season cracking of the insulating barrier near heat affected zone, insulation processing and cleannes are required very high, and have joint plasticity
The hidden danger such as difference, rosin joint.
Existing cord end plier, uses the crimping of a manual pliers, under-voltage situation often occurs, crimp appearance
More attractive in appearance, but crimping not consolidation, cause contact resistance between wire and crimp to increase, be easily caused resistance unbalance.
Due to under-voltage, easily cause in follow-up lead bending stress at because of crimping and cause wire to loosen.
Operating transformer, lead receives deadweight and the impact of vibration, and under-voltage crimp is easily loosening, causes connecting portion
Position heating, the normal operation of harm transformer.
If somewhat do not noted, power excessive, occur again overvoltage situation, crimping appearance there is overlap, cause
Electrode shape is irregular, and subsequent treatment is cumbersome.
For flying far serious joint, because compression ratio is excessive, cause net sectional area to reduce, lead to joint because overheated
And endanger the normal operation of transformer.
Transformer has electric energy loss unavoidably and is converted to heat energy in operation, and oil-filled transformer is to rely on oily flowing to dissipate
Heat, any position in transformer, if its caloric value is more than desired value or heat dissipation capacity is less than desired value, higher than mark
Can be only achieved heating and the balance of radiating under the temperature limit of quasi- regulation, incident heat will occur.
Content of the invention
For deficiency of the prior art, an object of the present invention is to provide a kind of semi-automatic cold weld pincers, the present invention
Purpose two be the assembly method providing this semi-automatic cold weld pincers to be used for transformer lead, to solve lead welding tired
Difficulty, intensity difference, and there is potential safety hazard.
For realizing purpose one, the present invention is achieved through the following technical solutions.
Semi-automatic cold weld pincers, including an installing plate, described installing plate are fixedly installed a force block, described is subject to
Multiple notches are provided with power block, with described notch cooperation be pressing tongs on movable block, described movable block is pressed from both sides by folder
Live, folder is connected with cylinder.Opposing runners welding procedure, employee is not required to professional training, simple to operate easy to learn, improves and produces effect
Rate, is replaced manually with cylinder, and efficiency of colding pressing improves 5 to 6 times.
Preferably, being provided with cushion block between described movable block and installing plate.Height between cushion block and installing plate is pre-
Leave the pipe of colding pressing of interspersed lead for.
Preferably, the diameter with diameter greater than pipe of colding pressing of the pressing tongs on described movable block.
Preferably, being provided with pressure-sensing device on described movable block, model selected by described pressure-sensing device
For mpx2100ap.
Preferably, being provided with displacement sensing element on described movable block, miran selected by described displacement sensing element
Rice youth ktr-25mm.Double insurance is it is ensured that pressure will not be colded pressing pipe in excessive damage, or the too small crimping of pressure is not firm.
For realizing purpose two, the present invention is achieved through the following technical solutions.
Comprise the following steps: 1) low voltage foil winding lead copper bar is with bolts；2) device body is hung high-voltage connection assembling
Area；3) special tooling or case lid are placed on device, lead is connected on shunting switch, the wire kink of wrinkle paper tube will be put
Shaping, revises lead and each winding goes out line length；4) prepare before high-voltage connection is colded pressing；5) crimp: lead is inserted pipe of colding pressing, opens
Open semi-automatic cord end plier, crimping terminates.Check oneself crimping quality status, crimping position must be substantially at bilateral and cold pressing at adapter 1/2,
And require crimping once in principle, and if loose contact at sensation crimping, can in original crimping point ftercompction once；6) use scissors,
File and sand paper remove break corner, burr and oxide；7) wrap up cold-pressed joint with crimped paper half lap two-layer in；8) wrapping low pressure is drawn
Line；9) lead is fixed；10) use dry gas drifting dust, comprehensively inspection, reorganizer body.
Compared with prior art: in the case that cost remains basically stable, crimp about 5～6 times of improved efficiency, cold weld can keep away
Exempt from rosin joint, weld fragility, cross heat ageing, the quality problem such as welding slag pollution, greatly improve transformer reliability and anti-short circuit capability,
Opposing runners welding procedure, employee is not required to professional training, simple to operate easy to learn, improve production efficiency.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the movable block positive structure schematic of the present invention.
Fig. 3 is the pipe schematic diagram of colding pressing of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings with specific embodiment, the present invention is described further.
Semi-automatic cold weld pincers, including an installing plate 5, described installing plate 5 are fixedly installed force block 1 and movable block
2, described force block 1 is provided with multiple notches 11, the pressing tongs 21 with described notch 11 cooperation that movable block 2 is provided with,
Described movable block 2 is clamped by folder 3, and folder 3 is connected with cylinder 4, is provided with pad between described movable block 2 and installing plate 5
Block 6, the diameter with diameter greater than pipe 7 of colding pressing of the pressing tongs 21 on described movable block 2, described movable block 2 is provided with pressure
Sensing element, model mpx2100ap selected by described pressure-sensing device, commercially available all can, described movable block 2 is arranged
There is displacement sensing element, miran rice youth ktr-25mm selected by described displacement sensing element, and commercially available all may be used.
When the pipe 7 of colding pressing being installed with lead is positioned over inside pressing tongs 21, under the drive of cylinder 4, folder 3 drives movable block
2 move on fixing rectilinear orbit, are pressure bonded in the multiple notches 11 on force block 1, because it is quick to be provided with pressure on force block 1
Sensing unit and displacement sensing element, so the effect of each power is identical it is ensured that pipe 7 of colding pressing will not be by bonding processes
Damage by pressure, and uniformly attractive in appearance, described pipe 7 of colding pressing, through repeatedly verifying, resistivity of material is not more than 0.017415 ω .mm2/ m, because
This does not interfere with lead at all and normally uses.
Operating process:
1. low voltage foil winding lead copper bar is with bolts, and the tin plating process in junction (needs to use spring washer) therebetween；
2. device body is hung high-voltage connection assembly section, by pattern requirement install with device lead supports insulative cardboard and
Fixing support
3. special tooling or case lid are placed on device, it is then determined that position of tapping switch, lead are connected on shunting switch
On.The wire kink putting wrinkle paper tube is molded, then revises lead and each winding goes out line length.
4. prepare before high-voltage connection is colded pressing: inspection cold pressing device, the sensitive nothing of equipment is substantially delayed, removes electromagnetic wire and lead
During insulation, must not note and damage copper cash, during electromagnetic wire line footpath φ≤1.5mm, line wringing of lifting one's head (or folding placement) need to drawn
On line, the lap of splice about 15mm, and enough fillings wire (circular copper wire, length 25, line footpath about φ=2mm) need to be prepared, work as coil
During diameter wire >=1.5mm, overlapping area is 5 times of wire smallest cross-sectional.
5. crimp: lead is inserted pipe 7 of colding pressing, opens semi-automatic cord end plier, crimping terminates.Check oneself crimping quality status,
Crimping position must be substantially at bilateral and cold pressing at adapter 1/2, and requires crimping once in principle, if contact is not at sensation crimping
Good, can in original crimping point ftercompction once.
6. remove break corner, burr and oxide with scissors, file and sand paper, in here operation, note protection end turn,
Metallic dust is avoided to enter coil.
7. wrap up cold-pressed joint with crimped paper half lap two-layer in, insulating wrapping thickness by drawing, draws according to different
Line gauge lattice are wrapped up, and then put down crimped paper pipe box and live welding position, all plumb joints wrapping consolidations, uniform, attractive in appearance it is ensured that one
Lead insulation thickness everywhere is consistent, and the insulation particularly connecing at bag must be reliable.
8. wrap up low-voltage lead: the lead of inner side (line end a, b, c three-phase) first uses straight burr strap again with 2 layers of crimped paper half lap
One layer of wrapping of half lap, wrapping length is concordant with zero-emission lower end, uses in outside (near the neutral point bending place of high pressure winding) lead
Crimped paper, external application straight burr strap half-stack package is pricked, and wrapping thickness is 2mm, and lift one's head the thick dmd of cushioning 0.25 between bending place and curtain oil duct
One, paper, wrapping, in crimped paper or straight burr strap, is separated with the thick cardboard of 1mm between neutral point connecting wire and three phase terminals,
With the wrapping of straight burr strap firmly, lead wrapping consolidation, uniformly, root wraps foot as far as possible.
9. lead is fixed: with wax wire or the adjacent tap lead of straight burr strap colligation, uses support anchor leg, draws for low pressure
The product that line square washer is fixed, first removes burr in lead fixing hole, and correction lead makes lead fixing hole and folder screwed hole
To straight, finally fix, when fixing, bolt will be paid special attention to the insulation pipe size of bolt coat and meets drawing requirement.
10. use dry gas drifting dust, comprehensively inspection, reorganizer body, cushion block 6 centre deviation is measured using messenger wire method, right
Go up lower cushion block 6 together, tighten each position bolt, folder 3 is insulated whether well with the measurement of 2500v megger 500v shelves is unshakable in one's determination, and examine
Look into iron core and have or not rusty stain, if any rusty stain, cleaned out with rust removing solution, after self-inspection is qualified, hand over inspector's detection.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
It is defined, any replacement that those skilled in the art that this technology is made is readily apparent that, deformation, improvement each fall within the present invention's
Protection domain.
Claims (5)
1. semi-automatic cold weld pincers are used for the assembly method of transformer lead it is characterised in that including installing plate (5), described
Installing plate (5) on be fixedly installed force block (1) and movable block (2), described force block (1) is provided with multiple notches
(11) pressing tongs (21) coordinating with described notch (11) that, movable block (2) is provided with, described movable block (2) is by folder (3)
Clamp, folder (3) is connected with cylinder (4), comprises the following steps: 1) low voltage foil winding lead copper bar is with bolts；2) by device
Body hangs high-voltage connection assembly section；3) special tooling or case lid are placed on device, lead is connected on shunting switch, will put
The wire kink shaping of wrinkle paper tube, revises lead and each winding goes out line length；4) prepare before high-voltage connection is colded pressing；5) crimp:
Lead is inserted pipe (7) of colding pressing, opens semi-automatic cord end plier, crimping terminates, and checks oneself crimping quality status, and crimping position must be in
Bilateral is colded pressing at adapter 1/2, and requires crimping once in principle, if loose contact at sensation crimping, can be in original crimping point
Ftercompction is once；6) break corner, burr and oxide are removed with scissors, file and sand paper；7) colded pressing with the wrapping of crimped paper half lap two-layer
Joint；8) wrap up low-voltage lead；9) lead is fixed；10) use dry gas drifting dust, comprehensively inspection, reorganizer body.
2. semi-automatic cold weld pincers are used for the assembly method of transformer lead it is characterised in that institute as claimed in claim 1
It is provided with cushion block (6) between the movable block (2) stated and installing plate (5).
3. semi-automatic cold weld pincers are used for the assembly method of transformer lead it is characterised in that institute as claimed in claim 2
The diameter with diameter greater than pipe (7) of colding pressing of the pressing tongs (21) on movable block (2) stated.
4. semi-automatic cold weld pincers are used for the assembly method of transformer lead it is characterised in that institute as claimed in claim 3
Pressure-sensing device is provided with the movable block (2) stated, model mpx2100ap selected by described pressure-sensing device.
5. semi-automatic cold weld pincers are used for the assembly method of transformer lead it is characterised in that institute as claimed in claim 4
Displacement sensing element is provided with the movable block (2) stated, miran rice youth ktr-25mm selected by described displacement sensing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516607.XA CN105097271B (en) | 2015-08-21 | 2015-08-21 | Semi-automatic cold weld pincers and assembly method for applying same to transformer lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516607.XA CN105097271B (en) | 2015-08-21 | 2015-08-21 | Semi-automatic cold weld pincers and assembly method for applying same to transformer lead |
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| Publication Number | Publication Date |
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| CN105097271A CN105097271A (en) | 2015-11-25 |
| CN105097271B true CN105097271B (en) | 2017-01-25 |
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| CN201510516607.XA Active CN105097271B (en) | 2015-08-21 | 2015-08-21 | Semi-automatic cold weld pincers and assembly method for applying same to transformer lead |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110444376B (en) * | 2019-08-29 | 2021-08-13 | 中山市百纳电子科技有限公司 | Distribution silicon steel oil-immersed transformer high-low voltage lead mounting structure |
| DE102020208305A1 (en) * | 2020-07-02 | 2022-01-05 | Volkswagen Aktiengesellschaft | Bending device for busbars |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2607221Y (en) * | 2003-03-19 | 2004-03-24 | 新疆特变电工股份有限公司 | Cold pressing copper tube and cold pressing mould for welding transformer lead wire |
| CN101299395A (en) * | 2008-03-26 | 2008-11-05 | 英博白云电气技术（扬州）有限公司 | Method for manufacturing reactor coil wire lead |
| CN202763276U (en) * | 2012-09-14 | 2013-03-06 | 保定天威集团有限公司 | Welding device of transformer leads |
| CN103474228A (en) * | 2013-09-06 | 2013-12-25 | 合肥鑫伟电力设备有限公司 | Low-voltage coiling lead fabrication process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4092744B2 (en) * | 1997-06-25 | 2008-05-28 | 富士電機システムズ株式会社 | Resin mold winding |
-
2015
- 2015-08-21 CN CN201510516607.XA patent/CN105097271B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2607221Y (en) * | 2003-03-19 | 2004-03-24 | 新疆特变电工股份有限公司 | Cold pressing copper tube and cold pressing mould for welding transformer lead wire |
| CN101299395A (en) * | 2008-03-26 | 2008-11-05 | 英博白云电气技术（扬州）有限公司 | Method for manufacturing reactor coil wire lead |
| CN202763276U (en) * | 2012-09-14 | 2013-03-06 | 保定天威集团有限公司 | Welding device of transformer leads |
| CN103474228A (en) * | 2013-09-06 | 2013-12-25 | 合肥鑫伟电力设备有限公司 | Low-voltage coiling lead fabrication process |
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| CN105097271A (en) | 2015-11-25 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Semi automatic cold crimping pliers and its assembly method used for transformer lead Effective date of registration: 20220121 Granted publication date: 20170125 Pledgee: Agricultural Bank of China Limited Ningbo Yinzhou Branch Pledgor: NINGBO AUX HIGH TECHNOLOGY Co.,Ltd. Registration number: Y2022330000149 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221201 Granted publication date: 20170125 Pledgee: Agricultural Bank of China Limited Ningbo Yinzhou Branch Pledgor: NINGBO AUX HIGH TECHNOLOGY Co.,Ltd. Registration number: Y2022330000149 |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 22, Fenglin Road, Cicheng Town, Jiangbei District, Ningbo City, Zhejiang Province, 315031 Patentee after: Ningbo Aokes Intelligent Technology Co.,Ltd. Address before: No. 22, Fenglin Road, Cicheng Town, Jiangbei District, Ningbo City, Zhejiang Province, 315031 Patentee before: NINGBO AUX HIGH TECHNOLOGY Co.,Ltd. |