CN210548746U - Automatic tool for surfacing of guide vane spindle head - Google Patents
Automatic tool for surfacing of guide vane spindle head Download PDFInfo
- Publication number
- CN210548746U CN210548746U CN201921395114.5U CN201921395114U CN210548746U CN 210548746 U CN210548746 U CN 210548746U CN 201921395114 U CN201921395114 U CN 201921395114U CN 210548746 U CN210548746 U CN 210548746U
- Authority
- CN
- China
- Prior art keywords
- heating gun
- support
- guide vane
- submerged arc
- welding machine
- 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.)
- Active
Links
Images
Landscapes
- Arc Welding In General (AREA)
Abstract
The utility model relates to an automatic frock of stator spindle nose build-up welding, its characterized in that: the automatic tool for the guide vane shaft head surfacing comprises a front support, a rear support, a rotary device, a front heating gun, a rear heating gun and a submerged arc welding machine, wherein the rotary device comprises a driving rotary mechanism and a driven rotary mechanism, which are used for connecting shaft heads at the front end and the rear end of a guide vane, the front heating gun and the rear heating gun are respectively installed on the front support and the rear support, the positions of the front heating gun and the rear heating gun respectively correspond to the shaft heads at the front end and the rear end of the guide vane, the submerged arc welding machine is installed above the front support, and the submerged arc welding machine is matched with the front heating gun. The utility model provides the high spindle nose preheats the homogeneity with the build-up welding, the stator turn-over is simple, and follow-up build-up welding department is polished simply, and dust pollution is little.
Description
Technical Field
The utility model belongs to the technical field of stator spindle nose processing equipment, especially, relate to an automatic frock of stator spindle nose build-up welding, be applicable to large-scale stator, like other blade spindle nose build-up welding of straight board stator or tape spool head.
Background
The guide vane is one of the most important parts in the water distributor of the water turbine generator set, is generally distributed in the water distributor in an annular shape, and controls water flow entering the generator set through the opening and closing degree of the guide vane, so that the generated energy is met. Modern hydropower stations can control the guide vane to be closed to control the generated energy by communicating with the power generation grid through information, and the electric quantity demand is known in real time, so that the water energy is efficiently and reasonably utilized. Therefore, when the guide vane is closed, the upper shaft head and the lower shaft head are used as the only supports and can bear huge friction force, so that a layer of metal needs to be overlaid on the guide vane shaft head for abrasion resistance.
The existing guide vane is manufactured by adopting manual surfacing in the aspect of surfacing of a shaft head, and is required to be assisted by a hoisting turnover tool or a simple cyclone tool. Manual surfacing is adopted, a welding station cannot use a normal station, preheating before surfacing is difficult to uniformly preheat, the surfacing stroke is large, the fault tolerance rate is low, gaps between welding layers are difficult to control, the rework rate is extremely high, and the environmental pollution is great; meanwhile, the finish machining after welding needs a large amount of time for polishing inevitable weld layer heights, particularly for large straight guide vanes, the surfacing area of the shaft head is large, the guide vanes are difficult to turn over easily, and the surfacing difficulty is higher. In conclusion, the manual surfacing spindle head is only suitable for small guide vanes but not suitable for medium-sized and large guide vanes, the surfacing difficulty is high, the quality is difficult to control, and a large amount of time is required for post finishing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automatic frock of stator spindle nose build-up welding is proposed to big, the quality is difficult to control, the fine processing in later stage needs the cost a large amount of manpower and materials scheduling problem of the build-up welding degree of difficulty among the prior art.
In order to achieve the purpose, the utility model provides a technical scheme does:
the utility model relates to a guide vane spindle nose build-up welding automatic tool, which comprises a front bracket, a rear bracket, a slewing device, a front heating gun, a rear heating gun and a submerged arc welding machine; the slewing device comprises a driving slewing mechanism and a driven slewing mechanism which are used for connecting the front end shaft heads and the rear end shaft heads of the guide vanes; the front heating gun and the rear heating gun are respectively arranged on the front bracket and the rear bracket, and the positions of the front heating gun and the rear heating gun respectively correspond to the shaft heads at the front end and the rear end of the guide vane; the submerged arc welding machine is arranged above the front support and matched with the front heating gun.
Preferably, the upper surfaces of the front support and the rear support are provided with at least two groups of heating gun fixing devices, each group of heating gun fixing devices comprises two heating gun fixing blocks and a wood pressing plate, two ends of each wood pressing plate are fixed on the two heating gun fixing blocks through screws, and the front heating gun and the rear heating gun are respectively pressed on the front support and the rear support through the wood pressing plates. The heating guns are fixed by at least two groups of heating gun fixing devices, so that the stability of fixing the heating guns is facilitated; heating gun fixing device adopts the structure of heating gun fixed block and wooden clamp plate, unscrews wooden clamp plate one side screw when adjusting the heating gun position, and the screw is screwed up again after the adjustment to the heating gun position adjustment of being convenient for.
Preferably, the device further comprises a front flux recovery groove and a rear flux recovery groove, the front flux recovery groove is located below the submerged arc welding machine and is fixed on the ground, and the rear flux recovery groove is located right below the guide vane rear end bearing and is fixed on the ground. And the front flux recovery tank and the rear flux recovery tank respectively recover residual flux during surfacing of the front shaft head and the rear shaft head.
Preferably, a submerged arc welding machine is also installed above the rear support, and the submerged arc welding machine above the rear support is matched with the rear heating gun. When the diameters of the front and rear shaft heads are the same or close, when the guide vanes are driven to rotate by the active slewing mechanism at the rotating speed n, the linear speed of the surfacing at the front and rear shaft heads is the same or close, and at the moment, two groups of submerged arc welding machines are arranged to simultaneously perform surfacing on the shaft heads at two ends, so that the surfacing quality of the rear shaft head can be ensured.
Preferably, the active swing mechanism is equipped with a swing motor, and the active swing mechanism is located at the front side of the front bracket.
Preferably, the driven slewing mechanism is positioned inside the rear bracket.
Preferably, the front support and the rear support both comprise a base, an upper support and a deck, the upper support is fixed on the base through support fastening bolts, and the deck is fixed on the top of the upper support in a welding or bolt connection mode.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
1. the utility model discloses install the spindle nose at stator both ends on initiative rotation mechanism and driven rotation mechanism, in the in-process of heating and build-up welding to the spindle nose, initiative rotation mechanism drives the stator transportation rotation, and heating and build-up welding are more even, and processingquality obtains guaranteeing, especially to medium-sized and large-scale stator, has reduced the degree of difficulty that the stator overturns, and the build-up welding operation is lighter; because the surfacing quality is ensured, and the layers are tightly and uniformly formed, the next process can be changed by simply polishing after surfacing, and the finish machining takes less time and labor.
2. The utility model discloses according to the diameter of spindle nose, through the rotation rate of adjustment initiative rotation mechanism, the voltage and current of submerged arc welding machine input to reach the best heat output volume, make spindle nose frictional strength higher.
3. The utility model discloses the build-up welding adopts submerged arc welding machine to go on, and preceding solder flux accumulator and back solder flux accumulator have been laid respectively again to the below of front and back spindle nose, can retrieve unnecessary solder flux, and the scene does not have dust pollution almost.
Drawings
FIG. 1 is a perspective view of a guide vane spindle nose surfacing tool platform in the first embodiment;
FIG. 2 is a front view of a guide vane spindle nose overlaying tool platform in the first embodiment;
FIG. 3 is a schematic view of a front and rear heat gun installation;
FIG. 4 is a perspective view of a guide vane spindle nose build-up welding tooling platform in the second embodiment;
FIG. 5 is a front view of a guide vane spindle nose build-up welding tooling platform in the second embodiment.
Illustration of the drawings: 1-front support, 11-base, 12-upper support, 13-deck, 14-support fastening bolt, 15-heating gun fixing block, 16-wood pressing plate, 2-rear support, 3-driving swing mechanism, 4-driven swing mechanism, 5-front heating gun, 6-rear heating gun, 7-submerged arc welding machine, 71-welding head, 72-welding flux storage box, 8-front welding flux recovery tank and 9-rear welding flux recovery tank.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
The first embodiment is as follows:
the diameter size that this embodiment is used for the stator both ends spindle nose of processing has great difference.
Combine that attached drawing 1 and 2 show, the utility model discloses an automatic frock of stator spindle nose build-up welding includes fore-stock 1, after-poppet 2, slewer, preceding heating gun 5, after-heating gun 6 and submerged arc welding machine 7. The front support 1 and the rear support 2 respectively comprise a base 11, an upper support 12 and a deck 13, the upper support 12 is fixed on the base 11 through a support fastening bolt 14, and the deck 13 is fixed on the top of the upper support 12 in a welding or bolt connection mode; the slewing device comprises a driving slewing mechanism 3 and a driven slewing mechanism 4, wherein the driving slewing mechanism 3 and the driven slewing mechanism 4 are used for connecting shaft heads at the front end and the rear end of the guide vane, the driving slewing mechanism 3 is provided with a slewing motor and is positioned on the front side of the front support 1, and the driven slewing mechanism 4 is positioned in the rear support 2.
Referring to fig. 1 and 2, the front heating gun 5 and the rear heating gun 6 are respectively mounted on the deck 13 of the front support 1 and the rear support 2, and the positions of the front heating gun 5 and the rear heating gun 6 respectively correspond to the shaft heads at the front end and the rear end of the guide vane. Preceding heating gun 5 and after-heating gun 6's mounting means is shown in fig. 3, and the upper surface of fore-stock 1 and 2 decks 13 of after-poppet all sets up two sets of at least heating gun fixing device, and every group heating gun fixing device all includes two heating gun fixed blocks 15 and a wooden clamp plate 16, and the screw fixation is passed through on two heating gun 15 fixed blocks at wooden clamp plate 16's both ends, preceding heating gun 5 and after-heating gun 6 pass through wooden clamp plate 16 and press respectively in the front, on the after-stock, when current heating gun 5 or after-heating gun 6 need the adjusting position, unscrew wooden clamp plate one side screw, then the position of heating gun 5 or after-heating gun 6 before the adjustment, screw again after the position adjustment, fixed preceding heating gun 5 or after-heating gun 6.
Referring to fig. 1 and 2, in the present embodiment, because there is a large difference in the diameter of the spindle heads at the two ends of the guide vane, the submerged arc welding machine 7 is only installed above the front bracket 1, and the submerged arc welding machine 7 is matched with the front heating gun 5. The submerged arc welding machine 7 comprises a welding head 71 and a welding agent storage box 72, wherein the welding agent is stored in the welding agent storage box 72, the main components of the welding agent are CrMo alloy forged pieces with the diameter of 250mm, and welding wire deposited metal, the welding wire deposited metal comprises 0.05% of C, 055% of Si, 1.26% of Mn, 0.016% of P, 0.012% of S, 1.25% of Ni and 0.024% of Ti, the welding head 71 and the welding agent storage box 72 are connected through a pipeline, the welding head 71 sucks the welding agent in the welding agent storage box 72 to the welding head 71 through a control box (not shown in the figure) and outputs the welding agent, and a telescopic conducting rod (not shown in the figure) is arranged at the bottom of the welding head 71 and used for overlaying the welding agent on a shaft sleeve.
With reference to fig. 1 and 2, the automatic tool for vane spindle nose overlay welding according to the present embodiment further includes a front flux recovery groove 8 and a rear flux recovery groove 9, the front flux recovery groove 8 is located below the submerged arc welding machine 7 and is fixed on the ground, and the rear flux recovery groove 9 is located right below the rear end bearing of the vane and is fixed on the ground.
The use method of the guide vane spindle head surfacing automatic tool is characterized by comprising the following steps of:
step 1, evaluating the optimal heat input E of the welding process1calculating formula E ═ η UI/v and optimum heat input E from heat input1Setting current I and voltage U of a submerged arc welding machine and a linear speed v of overlaying welding, measuring the radiuses of shaft heads at two ends of a guide vane, measuring the radiuses of the shaft heads at the two ends of the guide vane to have larger difference, and calculating according to a formula v 2 pi r omega/360 2 pi r 6n/360 pi rn/30 to obtain the active slewing machineThe rotation speed n of the mechanism is shown, wherein omega is the angular speed of the active slewing mechanism, and pi is the circumferential rate;
step 2.1, adjusting the distance between the bases 11 of the front support 1 and the rear support 2 according to the length of the guide vane, and installing the driving swing mechanism 3 and the driven swing mechanism 4 to enable the driving swing mechanism 3 and the driven swing mechanism 4 to be coaxial;
2.2, hoisting the guide vane between the driving swing mechanism 3 and the driven swing mechanism 4 through a crane, installing a front end shaft head of the guide vane on an output shaft of a swing motor of the driving swing mechanism 3, and installing a rear end shaft head of the guide vane on a rotating shaft of the driven swing mechanism 4;
step 2.3, fixing the upper support 12 on the base 11 through a support fastening bolt 14, then installing a deck 13 on the upper support 12, and arranging two groups of heating gun fixing blocks 15 and wood pressing plates 16 on the upper surfaces of the decks 13 at two ends;
step 2.4, installing and adjusting the front heating gun 5 and the rear heating gun 6 according to the positions of the front shaft head and the rear shaft head, then screwing screws at two ends of the wood pressing plate 16, and fixing the front heating gun 5 and the rear heating gun 6 on the deck 13;
step 3, starting the active slewing mechanism to enable the guide vanes to rotate according to the rotating speed calculated in the step 1, and simultaneously starting the front heating gun 5 and the rear heating gun 6 to uniformly heat the front shaft head and the rear shaft head;
and 4, closing the front heating gun 5 and the rear heating gun 6, starting the submerged arc welding machine 7, surfacing the front end shaft head of the guide vane by the submerged arc welding machine 7, adopting manual auxiliary surfacing for the rear end shaft head, simply polishing a surfacing part after surfacing is finished, and respectively dropping redundant flux waste materials into the front flux recovery tank 8 and the rear flux recovery tank 9.
Example two:
the spindle heads at the two ends of the guide vane used for machining are the same or similar in diameter.
Referring to fig. 4 and 5, the automatic tool for vane spindle nose surfacing adopted in the present embodiment includes a front bracket 1, a rear bracket 2, a turning device, a front heating gun 5, a rear heating gun 6, and a submerged arc welding machine 7. The front support 1 and the rear support 2 respectively comprise a base 11, an upper support 12 and a deck 13, the upper support 12 is fixed on the base 11 through a support fastening bolt 14, and the deck 13 is fixed on the top of the upper support 12 in a welding or bolt connection mode; the slewing device comprises a driving slewing mechanism 3 and a driven slewing mechanism 4, wherein the driving slewing mechanism 3 and the driven slewing mechanism 4 are used for connecting shaft heads at the front end and the rear end of the guide vane, the driving slewing mechanism 3 is provided with a slewing motor and is positioned on the front side of the front support 1, and the driven slewing mechanism 4 is positioned in the rear support 2.
Referring to fig. 4 and 5, the front heating gun 5 and the rear heating gun 6 are respectively mounted on the deck 13 of the front support 1 and the rear support 2, and the positions of the front heating gun 5 and the rear heating gun 6 respectively correspond to the shaft heads at the front end and the rear end of the guide vane. Preceding heating gun 5 and after-heating gun 6's mounting means is shown in fig. 3, and the upper surface of fore-stock 1 and 2 decks 13 of after-poppet all sets up two sets of at least heating gun fixing device, and every group heating gun fixing device all includes two heating gun fixed blocks 15 and a wooden clamp plate 16, and the screw fixation is passed through on two heating gun 15 fixed blocks at wooden clamp plate 16's both ends, preceding heating gun 5 and after-heating gun 6 pass through wooden clamp plate 16 and press respectively in the front, on the after-stock, when current heating gun 5 or after-heating gun 6 need the adjusting position, unscrew wooden clamp plate one side screw, then the position of heating gun 5 or after-heating gun 6 before the adjustment, screw again after the position adjustment, fixed preceding heating gun 5 or after-heating gun 6.
Referring to fig. 4 and 5, in the present embodiment, since the diameters of the spindle heads at both ends of the guide vane are the same or similar, a submerged arc welding machine 7 is installed above the front support 1 and the rear support 2, the submerged arc welding machine 7 at the front end is matched with the front heating gun 5, and the submerged arc welding machine 7 at the rear end is matched with the rear heating gun 6. The submerged arc welding machine 7 comprises a welding head 71 and a welding agent storage box 72, wherein the welding agent storage box 72 stores welding agents, the main components of the welding agents are steel forgings with the diameter of 250mm, and welding wire deposited metal, the welding wire deposited metal comprises 0.06% of C, 051% of Si, 1.06% of Mn, 0.016% of P, 0.008% of S, 1.18% of Cr and 0.44% of Mo, the welding head 71 and the welding agent storage box 72 are connected through a pipeline, the welding head 71 sucks the welding agents in the welding agent storage box 72 to the welding head 71 through a control box (not shown in the figure) and outputs the welding agents, and a telescopic conducting rod (not shown in the figure) is arranged at the bottom of the welding head 71 and used for overlaying the welding agents on a shaft sleeve.
Referring to fig. 1 and 2, the automatic tool for vane spindle nose surfacing according to the embodiment further includes a front flux recovery tank 8 and a rear flux recovery tank 9, the front flux recovery tank 8 is located under the front end submerged arc welding machine 7 and is fixed on the ground, and the rear flux recovery tank 9 is located under the rear end submerged arc welding machine 7 of the rear end vane and is fixed on the ground.
The use method of the guide vane spindle head surfacing automatic tool is characterized by comprising the following steps of:
step 1, evaluating the optimal heat input E of the welding process1calculating formula E ═ η UI/v and optimum heat input E from heat input1Setting current I and voltage U of a submerged arc welding machine and a linear velocity v of surfacing welding, measuring the radiuses of shaft heads at two ends of a guide vane, wherein the radiuses of the shaft heads at the two ends are the same or similar, the radiuses of the shaft heads at the front end and the rear end are r or close to r, and calculating according to a formula v 2 pi r omega/360 2 pi r 6n/360 pi rn/30 to obtain the rotating speed n of an active slewing mechanism, wherein omega is the angular velocity of the active slewing mechanism, and pi is the circumferential rate;
step 2.1, adjusting the distance between the bases 11 of the front support 1 and the rear support 2 according to the length of the guide vane, and installing the driving swing mechanism 3 and the driven swing mechanism 4 to enable the driving swing mechanism 3 and the driven swing mechanism 4 to be coaxial;
2.2, hoisting the guide vane between the driving swing mechanism 3 and the driven swing mechanism 4 through a crane, and respectively installing shaft heads at two ends of the guide vane on rotating shafts of the driving swing mechanism 3 and the driven swing mechanism 4;
step 2.3, fixing the upper support 12 on the base 11 through a support fastening bolt 14, then installing a deck 13 on the upper support 12, and arranging two groups of heating gun fixing blocks 15 and wood pressing plates 16 on the upper surfaces of the decks 13 at two ends;
step 2.4, installing and adjusting the front heating gun 5 and the rear heating gun 6 according to the positions of the front shaft head and the rear shaft head, then screwing screws at two ends of the wood pressing plate 16, and fixing the front heating gun 5 and the rear heating gun 6 on the deck 13;
step 3, starting the active slewing mechanism to enable the guide vanes to rotate according to the rotating speed calculated in the step 1, and simultaneously starting the front heating gun 5 and the rear heating gun 6 to uniformly heat the front shaft head and the rear shaft head;
and 4, closing the front heating gun 5 and the rear heating gun 6, starting the submerged arc welding machines 7 at the front end and the rear end, surfacing the front end shaft head and the rear end shaft head of the guide vane by the submerged arc welding machines 7, simply polishing a surfacing part after surfacing is finished, and respectively dropping redundant flux waste materials into the front flux recovery tank 8 and the rear flux recovery tank 9.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (8)
1. The utility model provides a stator spindle nose build-up welding automatic frock which characterized in that: the submerged arc welding device comprises a front support, a rear support, a rotating device, a front heating gun, a rear heating gun and a submerged arc welding machine; the slewing device comprises a driving slewing mechanism and a driven slewing mechanism which are used for connecting the front end shaft heads and the rear end shaft heads of the guide vanes; the front heating gun and the rear heating gun are respectively arranged on the front bracket and the rear bracket, and the positions of the front heating gun and the rear heating gun respectively correspond to the shaft heads at the front end and the rear end of the guide vane; the submerged arc welding machine is arranged above the front support and matched with the front heating gun.
2. The automatic guide vane shaft head surfacing tool according to claim 1, characterized in that: the upper surfaces of the front support and the rear support are provided with at least two groups of heating gun fixing devices, each group of heating gun fixing devices comprises two heating gun fixing blocks and a wood pressing plate, the two ends of each wood pressing plate are fixed on the two heating gun fixing blocks through screws, and the front heating gun and the rear heating gun are respectively pressed on the front support and the rear support through the wood pressing plates.
3. The automatic guide vane shaft head surfacing tool according to claim 1, characterized in that: the front flux recovery groove is positioned below the submerged arc welding machine and is fixed on the ground, and the rear flux recovery groove is positioned right below the guide vane rear end bearing and is fixed on the ground.
4. The automatic guide vane shaft head surfacing tool according to claim 1, characterized in that: and a submerged arc welding machine is also arranged above the rear support, and the submerged arc welding above the rear support is matched with a rear heating gun.
5. The automatic guide vane shaft head surfacing tool according to claim 1, characterized in that: the active swing mechanism is provided with a swing motor and is positioned on the front side of the front bracket.
6. The automatic guide vane shaft head surfacing tool according to claim 1, characterized in that: the driven slewing mechanism is positioned in the rear bracket.
7. The automatic guide vane shaft head surfacing tool according to claim 1, characterized in that: the submerged arc welding machine comprises a welding machine head and a welding flux storage box, the welding machine head and the welding flux storage box are connected through a pipeline, and a telescopic conducting rod is arranged at the bottom of the welding machine head.
8. The automatic guide vane shaft head surfacing tool according to claim 1, characterized in that: the front support and the rear support respectively comprise a base, an upper support and a deck, the upper support is fixed on the base through support fastening bolts, and the deck is fixed on the top of the upper support in a welding or bolt connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921395114.5U CN210548746U (en) | 2019-08-26 | 2019-08-26 | Automatic tool for surfacing of guide vane spindle head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921395114.5U CN210548746U (en) | 2019-08-26 | 2019-08-26 | Automatic tool for surfacing of guide vane spindle head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210548746U true CN210548746U (en) | 2020-05-19 |
Family
ID=70672952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921395114.5U Active CN210548746U (en) | 2019-08-26 | 2019-08-26 | Automatic tool for surfacing of guide vane spindle head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210548746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405320A (en) * | 2019-08-26 | 2019-11-05 | 杭州中水科技股份有限公司 | A kind of entrance bucket shaft head built-up welding automatic fixture and application method |
-
2019
- 2019-08-26 CN CN201921395114.5U patent/CN210548746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405320A (en) * | 2019-08-26 | 2019-11-05 | 杭州中水科技股份有限公司 | A kind of entrance bucket shaft head built-up welding automatic fixture and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2211054A2 (en) | Shaft for wind turbine generator and method for assembling wind turbine generator | |
| CN210548746U (en) | Automatic tool for surfacing of guide vane spindle head | |
| CN202428096U (en) | Gantry welding machine used for welding H-shaped steel | |
| CN107984473A (en) | The automatic outside weld system of pipeline all positon | |
| CN211966280U (en) | Device capable of realizing automatic welding of stiffening ring | |
| CN201261115Y (en) | Semiautomatic welding device for rectangular workpiece | |
| CN107030446A (en) | The online repair system of high temperature and high pressure steam valve sealing face | |
| CN106826006A (en) | A kind of door-plate resistance spot welding automatic feeding system | |
| CN104625545B (en) | A kind of double robot welding positioner | |
| CN206898554U (en) | Mobile robot's TIG weld system | |
| CN114453803A (en) | Motor stator flat wire welding machine | |
| CN206925519U (en) | The online repair system of steam valve sealing surface | |
| CN202428286U (en) | Moving type welding tong electrode cap trimming device | |
| CN202356770U (en) | All-digital automatic welding machine of T-shaped pipe | |
| CN106944892A (en) | A kind of cast tube process equipment of high working efficiency | |
| CN215699291U (en) | U-rib assembling machine capable of improving working efficiency | |
| CN201604074U (en) | On-line repair device of large-type vertical grinding disc and grinding roller | |
| CN206200372U (en) | Barrel of Hydraulic Cylinders automatic welding device | |
| CN210908471U (en) | Iron tower foot robot welding set | |
| CN2388001Y (en) | Special machine tool for crankshaft regeneration | |
| CN105458479A (en) | Automatic multi-layer shaft repair welding device | |
| CN113134666A (en) | Plane and vertical face circumferential submerged arc surfacing non-standard equipment and surfacing process method | |
| CN208713128U (en) | A kind of laser soldering device improving welding procedure efficiency | |
| CN110405320A (en) | A kind of entrance bucket shaft head built-up welding automatic fixture and application method | |
| CN111229954A (en) | Method for induction rolling composite connection of steel and aluminum dissimilar metals of automobile body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |