CN107335938A - A kind of fire-fighting equipment special joint annular safety welder - Google Patents
A kind of fire-fighting equipment special joint annular safety welder Download PDFInfo
- Publication number
- CN107335938A CN107335938A CN201710754899.XA CN201710754899A CN107335938A CN 107335938 A CN107335938 A CN 107335938A CN 201710754899 A CN201710754899 A CN 201710754899A CN 107335938 A CN107335938 A CN 107335938A
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0252—Steering means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Resistance Welding (AREA)
Abstract
The invention discloses a kind of fire-fighting equipment special joint annular safety welder,Including operating desk,Transmission mechanism,Clamping device,Welding gun and welding gun governor motion,The present apparatus is by setting by vertical adjustment chi,The welding gun governor motion of left and right adjusting knob and front and rear regulation crank composition carrys out the regulation that Butt welding gun carries out welding position,And when carrying out the fire extinguisher girth welding with model without repeatedly adjusting,Only need travelling gear of the three-way motor with dynamic bevel gear and engagement connection,Girth welding operation can be completed,Automation of Welding degree is high,Save manpower,It will weld caused weldering cigarette by welding cigarette absorbing cover and plenum chamber and utilize negative pressure absorbing,And it can also be adjusted by bellows and absorb position,Ensure the assimilation effect of weldering cigarette,It absorbs is realized by intelligent controller,Operated automatically when detecting excitant collective,Avoid staff from forgetting to turn on exhaust equipment to damage to caused by body,And then it ensure that the health of operating personnel.
Description
Technical field
The present invention relates to fire-fighting equipment manufacturing and processing equipment, specifically a kind of fire-fighting equipment special joint annular safety welding
Device.
Background technology
Fire extinguisher is a kind of civilian fire product, chemical substance is placed in fire extinguisher, to rescue fire extinguishing calamity.Fire extinguisher is normal
One of fireproofing installation seen, it is stored in public place or the place of fire may occurs, filling in different types of fire extinguisher
Composition is different, is to aim at different fire alarms and set.It must be noted that during use in order to avoid producing minus effect and causing danger.In the market
Fire extinguisher while to its quality requirement, also require its outward appearance have competitiveness, produce fire extinguisher in the market
Producer be all oneself to complete its supporting fire extinguisher part welding operation mostly, welding directly affects the use of fire extinguisher and outer
See, be an important process, but existing process equipment has Railway Project：Existing welding equipment is mostly using by hand
Feeding, workpiece is carried out with mould to clamp welding, but welding gun needs to move when carrying out feeding, is difficult to reach when causing to be welded
Welding precision is influenceed to accurate location, and caused a large amount of weldering cigarettes are also directly arranged to air, operating personnel in welding process
Can largely be sucked when being operated, minority has the bonding machines of exhaust apparatus, also easily because worker oneself forgets to turn on and
Operating efficiency reduces, so as to influence the health of worker.
The content of the invention
It is an object of the invention to provide a kind of fire-fighting equipment special joint annular safety welder, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of fire-fighting equipment special joint annular safety welder, including operating desk, transmission mechanism, clamping device, weldering
Rifle and welding gun governor motion, it is characterised in that the transmission mechanism includes motor, bevel gear, rotate gear, power transmission shaft, bearing
Seat and locating piece, bottom plate is provided with operating desk bottom, the motor is arranged on bottom plate by motor cabinet, the motor shaft top of motor
End is connected with bevel gear, and bevel gear engages connection with travelling gear, the power transmission shaft be arranged on travelling gear and bearing block it
Between, power transmission shaft upper end is connected with locating piece, and the clamping device is arranged on directly over locating piece, and clamping device includes cylinder and top
Tight block, the withstanding tight block are connected with the piston of cylinder, and cylinder is fixed on above operating desk by hollow stent；The welding gun is adjusted
Section mechanism is fixed on the piston of cylinder by a rebound, and welding gun governor motion includes vertical adjustment chi, left and right adjusting knob
With front and rear regulation crank, welding gun is arranged on the lower end of vertical adjustment chi；Plenum chamber, the plenum chamber are further fixed on the bottom plate
On be connected with the connecting tube stretched into inside hollow stent, be provided with blower fan in connecting tube front end, the air inlet connection bellows of blower fan,
Weldering cigarette absorbing cover is installed in bellows front end, weldering cigarette absorbing cover is located in same level with welding gun, locating piece both sides, hollow
Internal stent is additionally provided with controller of fan, the controller of fan include sensor P, chip IC 1, chip IC 2, metal-oxide-semiconductor Q1 and
Resistance R1, the sensor P pin 1 connect electric capacity C1 and the pin 4 of chip IC 1, electric capacity C1 other end connection resistance R1
With resistance R2, the drain electrode of the resistance R1 other end connection sensor P pin 2 and metal-oxide-semiconductor Q1, sensor P pin 3 connects electricity
R5 and metal-oxide-semiconductor Q1 source electrode is hindered, metal-oxide-semiconductor Q1 drain electrode connection resistance R4, resistance the R4 other end connect power supply U1, resistance R2's
The other end connects the pin 3 of chip IC 1, and the pin 1 of chip IC 1 connects resistance R3, and the resistance R3 other end is grounded, resistance R5's
Other end connection resistance R7, electric capacity C3 and chip IC 2 pin 3, the pin 1 of chip IC 2 connect resistance R6, and resistance R6's is another
End ground connection, the pin 4 of chip IC 2 connect the resistance R7 other end, electric capacity C2, the electric capacity C3 other end and triode V1 base
Pole, electric capacity C2 other end ground connection, triode V1 colelctor electrode connecting fan M, blower fan M other end connection power supply U1, three poles
Pipe V1 grounded emitter, the power supply U1 is provided by step-down rectifying circuit, and step-down rectifying circuit includes transformer W, two poles
Pipe D5, diode D3 and electric capacity C4, the transformer W primary side winding N1 connection 220V alternating currents, transformer W secondary end
Winding N2 one end connection diode D5 anode and diode D6 negative electrode, the transformer W secondary end winding N2 other end
Connect diode D3 anode and diode D4 negative electrode, diode D5 negative electrode connection diode D3 negative electrode, electric capacity C5 and
Inductance L1, inductance the L1 other end connection electric capacity C4 and power supply U1, electric capacity C5 other end connection inductance L2, diode D6 sun
Pole and diode D4 anode, the inductance L2 other end connection electric capacity C4 other end and ground connection.
As the further scheme of the present invention：The model ME3-CO of the sensor P.
As the further scheme of the present invention：The model of the chip IC 1 and chip IC 2 is LM321.
As the further scheme of the present invention：The motor is buncher.
As further scheme of the invention：The locating piece is in cylindrical structure, and one is provided with locating piece
Rank.
As further scheme of the invention：The weldering cigarette absorbing cover is in open out shape.、
As further scheme of the invention：The electric capacity C4, electric capacity C5, inductance L1 and inductance L2 composition π type filtering
Device.
Compared with prior art, the beneficial effects of the invention are as follows：The present apparatus is by setting by vertical adjustment chi, left and right adjusting
The welding gun governor motion of knob and front and rear regulation crank composition carrys out the regulation that Butt welding gun carries out welding position, and is carrying out homotype
Number fire extinguisher girth welding when without repeatedly adjusting, only need travelling gear of the three-way motor with dynamic bevel gear and engagement connection, i.e.,
Girth welding operation can be completed, Automation of Welding degree is high, saves manpower, will be produced by welding cigarette absorbing cover and plenum chamber when welding
Raw weldering cigarette utilizes negative pressure absorbing, and can also be adjusted by bellows and absorb position, ensures the assimilation effect of weldering cigarette, it is inhaled
Receive and realized by intelligent controller, operated automatically when detecting excitant collective, avoid staff from forgetting to turn on exhaust and set
The standby infringement to caused by body, and then ensure that the health of operating personnel.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the circuit diagram of controller of fan.
Fig. 3 is the circuit diagram of step-down rectifying circuit.
1- operating desks in figure, 2- bottom plates, 3- hollow stents, 31- cylinders, 32- withstanding tight blocks, 33- blower fans, 34- air-blower controls
Device, 4- motors, 41- motor cabinets, 5- travelling gears, 6- power transmission shafts, 7- bearing blocks, 8- locating pieces, 9- welding guns, 10- vertical adjustments
Chi, 11- left and right adjusting knobs, the front and rear regulation cranks of 12-, 13- plenum chambers, 14- connecting tubes, 15- bellowss, 16- weldering cigarettes absorb
Cover, 17- bevel gears.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1-3, in the embodiment of the present invention, a kind of fire-fighting equipment special joint annular safety welder, including
Operating desk 1, transmission mechanism, clamping device, welding gun 9 and the welding gun governor motion for adjusting the locus of welding gun 9, the transmission
Mechanism includes motor 4, bevel gear 17, power transmission shaft 6, bearing block 7 and locating piece 8, and bottom plate 2, the electricity are provided with the bottom of operating desk 1
Machine 4 is installed on a base plate 2 by motor cabinet 41, and the motor shaft top of motor 4 is connected with bevel gear 17, bevel gear 17 and transmission
The engagement connection of gear 5, the power transmission shaft 6 are arranged between gearbox 5 and bearing block 7, and the upper end of power transmission shaft 6 is connected with locating piece 8,
Locating piece 8 is in cylindrical structure, and a step is provided with locating piece 8, and the clamping device is arranged on directly over locating piece 8,
Clamping device includes cylinder 31 and withstanding tight block 32, and the withstanding tight block 32 is connected with the piston of cylinder 31, and cylinder 31 is by hollow
Support 3 is fixed on the top of operating desk 1, when being welded, the end socket of fire extinguisher is placed on locating piece 8, the bottom sides of end socket
Edge is resisted against on the step of locating piece 8, and the top reduced diameter section edge of locating piece 8 is then resisted against the inner surface of fire extinguisher end socket, complete
Position restriction and fixation into fire extinguisher end socket, then the bottle neck of fire extinguisher bottle is held out against automatically by cylinder 31, you can ensure
Welding operation is that the concentricity of end socket and bottle neck reaches requirement, easy to operate, save regulating time, it is ensured that welding quality；
The welding gun governor motion is fixed on by a rebound on the piston of cylinder 31, and welding gun governor motion includes vertical
Chi 10, left and right adjusting knob 11 and front and rear regulation crank 12 are adjusted, welding gun 9 is arranged on the lower end of vertical adjustment chi 10, by perpendicular
The regulation of the welding position of welding gun 9 is carried out to regulation chi 10, left and right adjusting knob 11 and front and rear regulation crank 12, in use, will
Fire extinguisher end socket and fire extinguisher nozzle are fixed to welding post, and welding gun governor motion loads welding gun 9 and moved with the piston synchronous of cylinder 31
Move to welding post, then the position of welding gun 9 is finely tuned by left and right adjusting knob 11, front and rear regulation crank 12 so that welding gun 9 is quick
Weld seam is directed at, starts motor 4 and drives the rotation of fire extinguisher end socket, you can completes girth welding operation, Automation of Welding degree is high, section
Human-saving；
Plenum chamber 13 is further fixed on the bottom plate 2, the company stretched into inside hollow stent 3 is connected with the plenum chamber 13
Adapter 14, bellows 15 is provided with the front end of connecting tube 14, blower fan, the air inlet connection ripple of blower fan 15 are provided with the front end of connecting tube 14
Line pipe 11, weldering cigarette absorbing cover 16 is installed in the front end of bellows 11, the weldering cigarette absorbing cover 16 is in open out shape, and weldering cigarette absorbs
Cover 16 is located in same level with welding gun 9, the both sides of locating piece 8, will be produced by welding cigarette absorbing cover 16 and plenum chamber 13 when welding
Raw weldering cigarette utilizes negative pressure absorbing, avoids operating personnel from absorbing weldering cigarette and body is damaged, and can also pass through bellows
15 regulations absorb position, ensure the assimilation effect of weldering cigarette.
The present invention operation principle be：Blower fan is controlled by controller of fan, physical circuit such as Fig. 2 institutes of controller of fan
Show, sensor P obtains the low current signal directly proportional to irritative gas concentration, because the signal is very small, it is therefore necessary to
Generic operation can be just controlled after being amplified, operational amplifier uses AD8572, wherein chip IC 1, R1~R3, C1 to form permanent
Determine potential circuit so that sensor P 1,3 bipods and current potential keeps certain between 3 pin；Chip IC 2, R6, R7, C5 form letter
Number amplifying circuit, for electric current caused by gas electrolysis in detection sensor P, the small-signal of sensor is amplified,
And there is LPF function, the high-frequency interferencing signal in detection signal can be filtered out.Detection signal after amplification is input to
Triode V1 base stage, when the irritating concentration detected is higher than critical value, triode V1 conductings, blower fan M operation starts are led to
Wind is taken a breath.
Circuit in Fig. 2 is powered by Fig. 3 circuit, and 220V civil powers are by transformer W decompressions and diode D2-D5 in Fig. 3
Rectification after be input in pi type filter, pi type filter is made up of electric capacity C5, electric capacity C4, inductance L1 and inductance L2, can
Harmonic carcellation disturbs.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of fire-fighting equipment special joint annular safety welder, including operating desk, transmission mechanism, clamping device, welding gun
With welding gun governor motion, it is characterised in that the transmission mechanism includes motor, bevel gear, rotate gear, power transmission shaft, bearing block
And locating piece, bottom plate is provided with operating desk bottom, the motor is arranged on bottom plate by motor cabinet, the motor shaft top of motor
It is connected with bevel gear, bevel gear engages connection with travelling gear, and the power transmission shaft is arranged between travelling gear and bearing block,
Power transmission shaft upper end is connected with locating piece, and the clamping device is arranged on directly over locating piece, and clamping device includes cylinder and held out against
Block, the withstanding tight block are connected with the piston of cylinder, and cylinder is fixed on above operating desk by hollow stent；The welding gun regulation
Mechanism is fixed on the piston of cylinder by a rebound, welding gun governor motion include vertical adjustment chi, left and right adjusting knob and
Front and rear regulation crank, welding gun are arranged on the lower end of vertical adjustment chi；Plenum chamber is further fixed on the bottom plate, on the plenum chamber
The connecting tube stretched into inside hollow stent is connected with, blower fan is provided with connecting tube front end, the air inlet of blower fan connects bellows,
Bellows front end is provided with weldering cigarette absorbing cover, and weldering cigarette absorbing cover is located in same level with welding gun, locating piece both sides, hollow branch
Controller of fan is additionally provided with inside frame, the controller of fan includes sensor P, chip IC 1, chip IC 2, metal-oxide-semiconductor Q1 and electricity
Hinder R1, the pin 1 of the sensor P connects electric capacity C1 and the pin 4 of chip IC 1, electric capacity C1 other end connection resistance R1 and
The drain electrode of resistance R2, resistance the R1 other end connection sensor P pin 2 and metal-oxide-semiconductor Q1, sensor P pin 3 connect resistance
R5 and metal-oxide-semiconductor Q1 source electrode, metal-oxide-semiconductor Q1 drain electrode connection resistance R4, resistance R4 other end connection power supply U1, resistance R2's is another
One end connects the pin 3 of chip IC 1, and the pin 1 of chip IC 1 connects resistance R3, and resistance R3 other end ground connection, resistance R5's is another
One end connection resistance R7, electric capacity C3 and chip IC 2 pin 3, the pin 1 of chip IC 2 connect resistance R6, the resistance R6 other end
Ground connection, the pin 4 of chip IC 2 connect the resistance R7 other end, electric capacity C2, the electric capacity C3 other end and triode V1 base stage,
Electric capacity C2 other end ground connection, triode V1 colelctor electrode connecting fan M, blower fan the M other end connection power supply U1, triode V1
Grounded emitter, the power supply U1 is provided by step-down rectifying circuit, step-down rectifying circuit include transformer W, diode D5,
Diode D3 and electric capacity C4, the transformer W primary side winding N1 connection 220V alternating currents, transformer W secondary end winding
N2 one end connection diode D5 anode and diode D6 negative electrode, transformer W secondary end winding N2 other end connection
Diode D3 anode and diode D4 negative electrode, diode D5 negative electrode connection diode D3 negative electrode, electric capacity C5 and inductance
L1, inductance the L1 other end connection electric capacity C4 and power supply U1, electric capacity C5 other end connection inductance L2, diode D6 anode and
Diode D4 anode, the inductance L2 other end connection electric capacity C4 other end and ground connection.
2. a kind of fire-fighting equipment special joint annular safety welder according to claim 2, it is characterised in that described
Sensor P model ME3-CO.
3. a kind of fire-fighting equipment special joint annular safety welder according to claim 1, it is characterised in that described
Motor is buncher.
4. a kind of fire-fighting equipment special joint annular safety welder according to claim 1, it is characterised in that described
Locating piece is in cylindrical structure, and a step is provided with locating piece.
5. a kind of fire-fighting equipment special joint annular safety welder according to claim 1, it is characterised in that described
It is in open out shape to weld cigarette absorbing cover.
6. a kind of fire-fighting equipment special joint annular safety welder according to claim 1, it is characterised in that described
The model of chip IC 1 and chip IC 2 is LM321.
7. a kind of fire-fighting equipment special joint annular safety welder according to claim 1, it is characterised in that described
Electric capacity C4, electric capacity C5, inductance L1 and inductance L2 composition pi type filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710754899.XA CN107335938A (en) | 2017-08-29 | 2017-08-29 | A kind of fire-fighting equipment special joint annular safety welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710754899.XA CN107335938A (en) | 2017-08-29 | 2017-08-29 | A kind of fire-fighting equipment special joint annular safety welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107335938A true CN107335938A (en) | 2017-11-10 |
Family
ID=60214875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710754899.XA Withdrawn CN107335938A (en) | 2017-08-29 | 2017-08-29 | A kind of fire-fighting equipment special joint annular safety welder |
Country Status (1)
| Country | Link |
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| CN (1) | CN107335938A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108311839A (en) * | 2017-12-11 | 2018-07-24 | 安徽宝辰机电设备科技有限公司 | A kind of welding tooling suitable for gas shield welding |
| CN108544180A (en) * | 2018-07-02 | 2018-09-18 | 王丽 | A kind of double pipe opposite joint assembly welding robots |
| CN108856998A (en) * | 2018-08-03 | 2018-11-23 | 长兴鑫泓新能源科技有限公司 | A kind of Full-automatic welding machine that can quickly fix product |
| CN110802362A (en) * | 2019-11-06 | 2020-02-18 | 四川航天长征装备制造有限公司 | Positioning device for girth welding and welding method |
| CN111957460A (en) * | 2020-08-22 | 2020-11-20 | 张冬青 | Electric welding spraying machine capable of improving current power |
| CN112044912A (en) * | 2020-08-26 | 2020-12-08 | 江苏神力电源科技有限公司 | Variable-frequency type oil fume pumping device for rolling device |
| CN113163614A (en) * | 2021-03-26 | 2021-07-23 | 苏州晓岩居贸易有限公司 | Digital television chip system convenient to maintain and using method thereof |
-
2017
- 2017-08-29 CN CN201710754899.XA patent/CN107335938A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108311839A (en) * | 2017-12-11 | 2018-07-24 | 安徽宝辰机电设备科技有限公司 | A kind of welding tooling suitable for gas shield welding |
| CN108544180A (en) * | 2018-07-02 | 2018-09-18 | 王丽 | A kind of double pipe opposite joint assembly welding robots |
| CN108856998A (en) * | 2018-08-03 | 2018-11-23 | 长兴鑫泓新能源科技有限公司 | A kind of Full-automatic welding machine that can quickly fix product |
| CN110802362A (en) * | 2019-11-06 | 2020-02-18 | 四川航天长征装备制造有限公司 | Positioning device for girth welding and welding method |
| CN110802362B (en) * | 2019-11-06 | 2021-08-10 | 四川航天长征装备制造有限公司 | Positioning device for girth welding and welding method |
| CN111957460A (en) * | 2020-08-22 | 2020-11-20 | 张冬青 | Electric welding spraying machine capable of improving current power |
| CN112044912A (en) * | 2020-08-26 | 2020-12-08 | 江苏神力电源科技有限公司 | Variable-frequency type oil fume pumping device for rolling device |
| CN113163614A (en) * | 2021-03-26 | 2021-07-23 | 苏州晓岩居贸易有限公司 | Digital television chip system convenient to maintain and using method thereof |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171110 |