CN204997211U - Diaxon linkage vehicle vent -pipe's weldment work station - Google Patents
Diaxon linkage vehicle vent -pipe's weldment work station Download PDFInfo
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- CN204997211U CN204997211U CN201520672018.6U CN201520672018U CN204997211U CN 204997211 U CN204997211 U CN 204997211U CN 201520672018 U CN201520672018 U CN 201520672018U CN 204997211 U CN204997211 U CN 204997211U
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Abstract
The utility model discloses a diaxon linkage vehicle vent -pipe's weldment work station, including seal welded room, welding set, welding controller, welding machine, diaxon aggregate unit, smoke and dust clarifier, electrical control cabinet, control system and touch panel panel, diaxon aggregate unit includes aggressive device, slave unit, roll -over stand, turning device, clamping mechanism and welding jig, the roll -over stand is including upset base, upset support and upset crossbeam, upset support symmetry sets up the both ends at the upset base, upset crossbeam one end is connected with the upper end of one of them upset support, and the other end is connected with the upper end of another upset support. The utility model discloses can effectually avoid appearing the circumstances at welding dead angle, to weld forming of vehicle vent -pipe, improved welding precision and welding efficiency, reduced operating personnel intensity of labour, can avoid arc light and welding fume to operating personnel's injury, can avoid welding fume to atmospheric pollution, environmental protection.
Description
Technical field
The utility model relates to welding workstation technical field, is related specifically to a kind of welding workstation of two-axle interlocking automobile exhaust pipe.
Background technology
The existing welding workstation for automobile exhaust pipe, single axle rotation mostly, during welding, automobile exhaust pipe is needed to move on weld jig by operating personnel, clamping welds after completing, owing to being single axle rotation welding, easily there are some dead angles (weld less than place) in welding process, after to be welded completing, automobile exhaust pipe is moved down from weld jig, then repair welding is carried out to some dead angles, this kind of welding process not only increases the labour intensity of operating personnel, and reduce welding precision and welding efficiency, be unfavorable for welding in enormous quantities, another, existing automobile exhaust pipe welding workstation, the arc light in welding process and weld fumes are comparatively large to the injury of operating personnel, and weld fumes enters air to environment, can be unfavorable for environmental protection.
But for the deficiencies in the prior art, developer is necessary to develop the situation that a kind of reasonable in design, structure is simple, effectively can avoid occurring welding dead angle, to automobile exhaust pipe welding fabrication, improve welding precision and welding efficiency, reduce the labour intensity of operating personnel, arc light and weld fumes can be avoided the injury of operating personnel, weld fumes can be avoided the welding workstation of the pollution of air, the two-axle interlocking automobile exhaust pipe of environmental protection.
Utility model content
For solving prior art Problems existing, the utility model object provides the situation that a kind of reasonable in design, structure is simple, effectively can avoid occurring welding dead angle, to automobile exhaust pipe welding fabrication, improve welding precision and welding efficiency, reduce the labour intensity of operating personnel, arc light and weld fumes can be avoided the injury of operating personnel, weld fumes can be avoided the welding workstation of the pollution of air, the two-axle interlocking automobile exhaust pipe of environmental protection.
For solving above technical problem, the utility model comes to be realize by the following technical solutions:
A welding workstation for two-axle interlocking automobile exhaust pipe, comprises
One seal welding room, described seal welding room comprises sealing room body, top cover and base, and the lower end of described sealing room body is fixedly mounted on base, and described top cover is fixedly mounted on the upper end of sealing room body, is provided with electric rolling door in body side, described sealing room;
One welder, described welder is arranged on the inside in seal welding room;
Welding controller, described welding controller is electrically connected with welder;
Welding machine, described welding machine is electrically connected with described welder;
Two-axle interlocking device, described diaxon intercommunicating device is arranged in seal welding room, described two-axle interlocking device comprises aggressive device, slave unit, rollover stand, turning device, clamping mechanism and weld jig, described rollover stand comprises upset base, turnover bracket and turning beam, described turnover bracket is symmetricly set on the two ends of upset base, described turning beam one end is connected with the upper end of a wherein turnover bracket, the other end is connected with the upper end of another root turnover bracket, described aggressive device is connected with a wherein turnover bracket, described slave unit is connected with another root turnover bracket, described turning device is arranged on upset base, described clamping mechanism is arranged on turning beam, described weld jig is arranged between turning device and clamping mechanism,
One fume purifier that can purify the clarifying smoke produced in welding process, described fume purifier is arranged on the top cover in seal welding room;
Electrical control cabinet, described electrical control cabinet is arranged on outside seal welding room;
Can control the control system of welder and two-axle interlocking device action, described set-up of control system is inner in seal welding room, and is electrically connected with welding controller and welding machine respectively by electrical control cabinet;
Touch control panel, described touch control erecting of panel is on sealing room body, and described touch control panel is connected with control system.
In a preferred embodiment of the present utility model, outside described seal welding room, be provided with both hands Pneumatic button, described both hands start button is connected with touch control panel.
In a preferred embodiment of the present utility model, inside described electric rolling door, be provided with safe grating.
In a preferred embodiment of the present utility model, described welder comprises welding robot, welding base and welding gun, and described welding robot is arranged on base by welding base, and described welding gun is arranged on the end of welding robot.
In a preferred embodiment of the present utility model, be also provided with the clear rifle device that can clean welding gun in time in inside, described seal welding room.
In a preferred embodiment of the present utility model, described aggressive device comprises active casing, initiatively motor, reductor, driving gear and the floating bearing with external gear, initiatively base is provided with in the lower end of described active casing, described active casing passes through active floor installation on base, described active motor is arranged on active casing inside, described reductor is arranged on the bottom of active casing, the described output shaft of active motor is connected with the power shaft of reductor, described driving gear is connected with the output shaft of reductor, described floating bearing is arranged on the top of active casing, and be meshed with driving gear, described floating bearing is connected with the turnover bracket of rollover stand side.
In a preferred embodiment of the present utility model, described slave unit comprises driven housing and driven shaft, driven base is provided with in the lower end of described driven housing, described driven housing passes through driven floor installation on base, described driven shaft is arranged on the top of driven housing by bearing, described driven shaft is coaxial with floating bearing, and described driven shaft is connected with the turnover bracket of rollover stand opposite side.
In a preferred embodiment of the present utility model, described weld jig comprises weld jig, lower weld jig, upper die shank and lower die shank, guider is provided with between described upper weld jig and lower weld jig, described upper die shank is arranged on weld jig, and described lower die shank is arranged on lower weld jig.
In a preferred embodiment of the present utility model, described turning device comprises upset motor, reductor, turning gear and the floating bearing with external gear, described upset motor is arranged on upset chassis interior, described reductor is arranged on upset base upper end, the described output shaft of upset motor is connected with the power shaft of reductor, described turning gear is connected with the output shaft of reductor, described floating bearing is arranged on the middle part of upset base, and be meshed with described turning gear, described lower weld jig is arranged on floating bearing, and lower die shank extends in upset base through floating bearing, bearing is provided with between described upset base and lower die shank.
In a preferred embodiment of the present utility model, described clamping mechanism comprises cylinder, pressure plare and is symmetricly set on the pneumohydraulic pressure-cylinder of cylinder both sides, described cylinder is arranged on the middle part of turning beam, the output shaft of described pneumohydraulic pressure-cylinder is connected with pressure plare through turning beam, slide guide device is provided with between described pressure plare and turnover bracket, the output of described cylinder is connected with the upper die shank of upper weld jig through turning beam, on described, be provided with bearing between die shank and pressure plare.
Compared with prior art, the utility model is provided with two-axle interlocking device, during welding, by automobile exhaust pipe clamping on weld jig, half-twist under the effect of the active motor of two-axle interlocking device, then completes welding automobile exhaust pipe at upset motor with under the cooperation of welder, effectively can avoid the situation occurring welding dead angle, to automobile exhaust pipe welding fabrication, improve welding precision and welding efficiency, reduce the labour intensity of operating personnel; Another, top cover is provided with fume purifier, can purify the flue dust produced in welding process, arc light and weld fumes can be avoided the injury of operating personnel, weld fumes can be avoided the pollution of air, and then reach the object of environmental protection.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model welder and two-axle interlocking device.
Fig. 3 is the structural representation of the utility model two-axle interlocking device.
Fig. 4 is the front view of the utility model two-axle interlocking device.
Fig. 5 is the top view of Fig. 4.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
With reference to shown in Fig. 1, the welding workstation for a kind of two-axle interlocking automobile exhaust pipe provided in figure, comprises seal welding room, welder, welding controller 300, welding machine 200, two-axle interlocking device 600, fume purifier 1000, electrical control cabinet 1100, control system (not shown) and touch control panel 400.
Seal welding room comprises sealing room body 120, top cover 110 and base 130, the lower end of sealing room body 120 is fixedly mounted on base 130, top cover 110 is fixedly mounted on the upper end of sealing room body 120, electric rolling door 122 is provided with in sealing body 120 side, room, inside electric rolling door 122, be provided with safe grating 700, the setting of safe grating 700 improves the security performance of operating personnel.
With reference to shown in Fig. 2, welder is arranged on the inside in seal welding room, welder comprises welding robot 910, welding base 920 and welding gun 930, welding robot 910 is arranged on base 130 by welding base 920, welding gun 930 is arranged on the end of welding robot 910, welding controller 300 is electrically connected with welding robot 910, and welding machine 200 is electrically connected with the welding gun 930 being arranged on welding robot 910 end.
Diaxon intercommunicating device 600 is arranged in seal welding room, two-axle interlocking device comprises aggressive device, slave unit, rollover stand, turning device, clamping mechanism and weld jig, rollover stand comprises upset base 641, turnover bracket 643, 644 and turning beam 642, turnover bracket 643, 644 are symmetricly set on the two ends overturning base 641, turning beam 642 one end is connected with the upper end of turnover bracket 643, the other end is connected with the upper end of turnover bracket 644, aggressive device is connected with turnover bracket 644, slave unit is connected with turnover bracket 643, turning device is arranged on upset base 641, clamping mechanism is arranged on turning beam 642, weld jig is arranged between turning device and clamping mechanism.
Shown in Fig. 3-Fig. 5, aggressive device comprises active casing 612, initiatively motor 613, reductor 614, driving gear 615 and the floating bearing 616 with external gear, initiatively base 611 is provided with in the lower end of active casing 612, active casing 612 is arranged on base 130 by active base 611, initiatively motor 613 is arranged on active casing 612 inside, reductor 614 is arranged on the bottom of active casing 612, initiatively the output shaft of motor 613 is connected with the power shaft of reductor 614, driving gear 615 is connected with the output shaft of reductor 614, floating bearing 616 is arranged on the top of active casing 612, and be meshed with driving gear 615, floating bearing 616 is connected with the turnover bracket 644 of rollover stand side.
Slave unit comprises driven housing 622 and driven shaft 623, driven base 621 is provided with in the lower end of driven housing 622, driven housing 622 is arranged on base 130 by driven base 621, driven shaft 623 is arranged on the top of driven housing 622 by bearing, driven shaft 623 is coaxial with floating bearing 616, and driven shaft 623 is connected with the turnover bracket 643 of rollover stand opposite side.
Weld jig comprises weld jig 661, lower weld jig 662, upper die shank 663 and lower die shank 664, guider 667 is provided with between upper weld jig 661 and lower weld jig 662, upper die shank 663 is arranged on weld jig 661, and lower die shank 664 is arranged on counterdie weld jig 662.
Turning device comprises upset motor 631, reductor 632, turning gear 633 and the floating bearing 634 with external gear, it is inner that upset motor 631 is arranged on upset base 641, reductor 632 is arranged on upset base 641 upper end, the output shaft of upset motor 631 is connected with the power shaft of reductor 632, turning gear 633 is connected with the output shaft of reductor 632, floating bearing 634 is arranged on the middle part of upset base 641, and be meshed with turning gear 633, lower weld jig 662 is arranged on floating bearing 634, and lower die shank 664 extends in upset base 641 through floating bearing 634, bearing 666 is provided with between upset base 641 and lower die shank 664.
Clamping mechanism comprises cylinder 651, pressure plare 657 and is symmetricly set on the pneumohydraulic pressure-cylinder 652,653 of cylinder 651 both sides, cylinder 651 is arranged on the middle part of turning beam 642, the output shaft 655,656 of pneumohydraulic pressure-cylinder 652,653 is connected with pressure plare 657 through turning beam 642, slide guide device 658 is provided with between pressure plare 657 and turnover bracket 643,644, the output 654 of cylinder 651 is connected with the upper die shank 663 of upper weld jig 661 through turning beam 642, between upper die shank 663 and pressure plare 657, be provided with bearing 665.
Fume purifier 800 is arranged on the top cover 110 in seal welding room, Purge holes is offered at top cover 110, fume purifier 800 is connected with Purge holes, the setting of fume purifier 800 can effectively purify the flue dust produced in welding process, avoid flue dust to enter air to environment, further increase the environmental-protecting performance of this welding workstation.
Electrical control cabinet 1100 is arranged on outside seal welding room, control system can control the action of welder and two-axle interlocking device, set-up of control system is inner in seal welding room, and is electrically connected with welding controller 300 and welding machine 200 respectively by electrical control cabinet 1100.
Touch control panel 400 is arranged on sealing room body 120, touch control panel 400 is connected with control system, is provided with both hands Pneumatic button 500 outside seal welding room, and both hands start button 500 is connected with touch control panel 400, convenient startup, improves welding efficiency.
Also be provided with rifle device 1000 clearly in inside, seal welding room, the flue dust produced in welding process can be purified, arc light and weld fumes can be avoided the injury of operating personnel, weld fumes can be avoided the pollution of air, and then reach the object of environmental protection.
Specific works principle of the present utility model is as follows:
Automobile exhaust pipe to be welded is put into weld jig by operating personnel, withdraw grating place of safety, press both hands start button, work station electric rolling door is closed automatically, after pneumohydraulic pressure-cylinder and cylinder aeration zone move weld jig clamping automobile exhaust pipe, initiatively electric motor starting is by weld jig 90-degree rotation, restart upset motor and welding robot automobile exhaust pipe is welded, motor is overturn and welding robot interlock makes welding gun be in best welding position all the time in welding process, ensure continuity and the compactness of weld seam, weld rear robot and get back to welding initial point, initiatively motor and upset motor are under control of the control system, rotation makes weld jig get back to piece installing initial point, control system controls pneumohydraulic pressure-cylinder and cylinder drives upper weld jig rising to expose the automobile exhaust pipe welded, electric rolling door rises automatically, manually take off the automobile exhaust pipe welded, repeat above action can weld continuously.
The utility model is provided with two-axle interlocking device in sum, during welding, by automobile exhaust pipe clamping on weld jig, half-twist under the effect of the active motor of two-axle interlocking device, then welding automobile exhaust pipe is completed at upset motor with under the cooperation of welder, effectively can avoid the situation occurring welding dead angle, to automobile exhaust pipe welding fabrication, improve welding precision and welding efficiency, reduce the labour intensity of operating personnel; Another, top cover is provided with fume purifier, can purify the flue dust produced in welding process, arc light and weld fumes can be avoided the injury of operating personnel, weld fumes can be avoided the pollution of air, and then reach the object of environmental protection.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. a welding workstation for two-axle interlocking automobile exhaust pipe, is characterized in that, comprises
One seal welding room, described seal welding room comprises sealing room body, top cover and base, and the lower end of described sealing room body is fixedly mounted on base, and described top cover is fixedly mounted on the upper end of sealing room body, is provided with electric rolling door in body side, described sealing room;
One welder, described welder is arranged on the inside in seal welding room;
Welding controller, described welding controller is electrically connected with welder;
Welding machine, described welding machine is electrically connected with described welder;
Two-axle interlocking device, described diaxon intercommunicating device is arranged in seal welding room, described two-axle interlocking device comprises aggressive device, slave unit, rollover stand, turning device, clamping mechanism and weld jig, described rollover stand comprises upset base, turnover bracket and turning beam, described turnover bracket is symmetricly set on the two ends of upset base, described turning beam one end is connected with the upper end of a wherein turnover bracket, the other end is connected with the upper end of another root turnover bracket, described aggressive device is connected with a wherein turnover bracket, described slave unit is connected with another root turnover bracket, described turning device is arranged on upset base, described clamping mechanism is arranged on turning beam, described weld jig is arranged between turning device and clamping mechanism,
One fume purifier that can purify the clarifying smoke produced in welding process, described fume purifier is arranged on the top cover in seal welding room;
Electrical control cabinet, described electrical control cabinet is arranged on outside seal welding room;
Can control the control system of welder and two-axle interlocking device action, described set-up of control system is inner in seal welding room, and is electrically connected with welding controller and welding machine respectively by electrical control cabinet;
Touch control panel, described touch control erecting of panel is on sealing room body, and described touch control panel is connected with control system.
2. the welding workstation of a kind of two-axle interlocking automobile exhaust pipe as claimed in claim 1, it is characterized in that: outside described seal welding room, be provided with both hands Pneumatic button, described both hands start button is connected with touch control panel.
3. the welding workstation of a kind of two-axle interlocking automobile exhaust pipe as claimed in claim 1, is characterized in that: inside described electric rolling door, be provided with safe grating.
4. the welding workstation of a kind of two-axle interlocking automobile exhaust pipe as claimed in claim 1, it is characterized in that: described welder comprises welding robot, welding base and welding gun, described welding robot is arranged on base by welding base, and described welding gun is arranged on the end of welding robot.
5. the welding workstation of a kind of two-axle interlocking automobile exhaust pipe as claimed in claim 4, is characterized in that: be also provided with the clear rifle device that can clean welding gun in time in inside, described seal welding room.
6. the welding workstation of a kind of two-axle interlocking automobile exhaust pipe as claimed in claim 1, it is characterized in that: described aggressive device comprises active casing, initiatively motor, reductor, driving gear and the floating bearing with external gear, initiatively base is provided with in the lower end of described active casing, described active casing passes through active floor installation on base, described active motor is arranged on active casing inside, described reductor is arranged on the bottom of active casing, the described output shaft of active motor is connected with the power shaft of reductor, described driving gear is connected with the output shaft of reductor, described floating bearing is arranged on the top of active casing, and be meshed with driving gear, described floating bearing is connected with the turnover bracket of rollover stand side.
7. the welding workstation of a kind of two-axle interlocking automobile exhaust pipe as claimed in claim 6, it is characterized in that: described slave unit comprises driven housing and driven shaft, driven base is provided with in the lower end of described driven housing, described driven housing passes through driven floor installation on base, described driven shaft is arranged on the top of driven housing by bearing, described driven shaft is coaxial with floating bearing, and described driven shaft is connected with the turnover bracket of rollover stand opposite side.
8. the welding workstation of a kind of two-axle interlocking automobile exhaust pipe as claimed in claim 7, it is characterized in that: described weld jig comprises weld jig, lower weld jig, upper die shank and lower die shank, guider is provided with between described upper weld jig and lower weld jig, described upper die shank is arranged on weld jig, and described lower die shank is arranged on lower weld jig.
9. the welding workstation of a kind of two-axle interlocking automobile exhaust pipe as claimed in claim 8, it is characterized in that: described turning device comprises upset motor, reductor, turning gear and the floating bearing with external gear, described upset motor is arranged on upset chassis interior, described reductor is arranged on upset base upper end, the described output shaft of upset motor is connected with the power shaft of reductor, described turning gear is connected with the output shaft of reductor, described floating bearing is arranged on the middle part of upset base, and be meshed with described turning gear, described lower weld jig is arranged on floating bearing, and lower die shank extends in upset base through floating bearing, bearing is provided with between described upset base and lower die shank.
10. the welding workstation of a kind of two-axle interlocking automobile exhaust pipe as claimed in claim 9, it is characterized in that: described clamping mechanism comprises cylinder, pressure plare and is symmetricly set on the pneumohydraulic pressure-cylinder of cylinder both sides, described cylinder is arranged on the middle part of turning beam, the output shaft of described pneumohydraulic pressure-cylinder is connected with pressure plare through turning beam, slide guide device is provided with between described pressure plare and turnover bracket, the output of described cylinder is connected with the upper die shank of upper weld jig through turning beam, on described, be provided with bearing between die shank and pressure plare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520672018.6U CN204997211U (en) | 2015-08-31 | 2015-08-31 | Diaxon linkage vehicle vent -pipe's weldment work station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520672018.6U CN204997211U (en) | 2015-08-31 | 2015-08-31 | Diaxon linkage vehicle vent -pipe's weldment work station |
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| CN204997211U true CN204997211U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520672018.6U Active CN204997211U (en) | 2015-08-31 | 2015-08-31 | Diaxon linkage vehicle vent -pipe's weldment work station |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181096A (en) * | 2016-08-29 | 2016-12-07 | 广州增田盛安汽配制造有限公司 | A kind of production and processing center of steering beam assembly |
| CN107378333A (en) * | 2017-08-08 | 2017-11-24 | 成都润博科技有限公司 | A kind of integral and intelligent welding robot system and welding method |
| CN107984108A (en) * | 2017-12-20 | 2018-05-04 | 迈赫机器人自动化股份有限公司 | Automobile exhaust system welding workstation and Automobile Welding equipment |
| CN108326482A (en) * | 2018-02-06 | 2018-07-27 | 浙江梅轮电梯股份有限公司 | A kind of elevator column welding room |
| CN108678446A (en) * | 2018-07-24 | 2018-10-19 | 荆门优德科技有限公司 | A kind of grinding and sawing special purpose workstation for mounting |
| CN110202531A (en) * | 2019-06-25 | 2019-09-06 | 中电工业互联网有限公司 | A kind of exhaust pipe automatic turning device |
| CN110653535A (en) * | 2019-10-11 | 2020-01-07 | 哈尔滨电机厂有限责任公司 | Automatic preparation system for babbitt metal on surface of bearing bush of large-scale generator |
| CN110899909A (en) * | 2019-12-16 | 2020-03-24 | 浙江师范大学 | Welding protection device, arc welding system and welding method |
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2015
- 2015-08-31 CN CN201520672018.6U patent/CN204997211U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181096A (en) * | 2016-08-29 | 2016-12-07 | 广州增田盛安汽配制造有限公司 | A kind of production and processing center of steering beam assembly |
| CN107378333A (en) * | 2017-08-08 | 2017-11-24 | 成都润博科技有限公司 | A kind of integral and intelligent welding robot system and welding method |
| CN107984108A (en) * | 2017-12-20 | 2018-05-04 | 迈赫机器人自动化股份有限公司 | Automobile exhaust system welding workstation and Automobile Welding equipment |
| CN108326482A (en) * | 2018-02-06 | 2018-07-27 | 浙江梅轮电梯股份有限公司 | A kind of elevator column welding room |
| CN108678446A (en) * | 2018-07-24 | 2018-10-19 | 荆门优德科技有限公司 | A kind of grinding and sawing special purpose workstation for mounting |
| CN108678446B (en) * | 2018-07-24 | 2023-08-11 | 荆门优德科技有限公司 | Special workstation for grinding and sawing of automobile underframe |
| CN110202531A (en) * | 2019-06-25 | 2019-09-06 | 中电工业互联网有限公司 | A kind of exhaust pipe automatic turning device |
| CN110202531B (en) * | 2019-06-25 | 2024-05-28 | 中电工业互联网有限公司 | Automatic turning device of blast pipe |
| CN110653535A (en) * | 2019-10-11 | 2020-01-07 | 哈尔滨电机厂有限责任公司 | Automatic preparation system for babbitt metal on surface of bearing bush of large-scale generator |
| CN110899909A (en) * | 2019-12-16 | 2020-03-24 | 浙江师范大学 | Welding protection device, arc welding system and welding method |
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