Automated surfacing of rotationally symmetrical parts
Everything from a single supply – it‘s more than just a advertising promise! Over 50 drawings of various parts served as the basis for the automation answer developed by EWM for pump safety valve manufacturer, Schroeder Valves GmbH in Germany. All of the main specialist’s components did have one factor in frequent, they have been all rotationally symmetrical. pressure gauge ราคา ถูก was the begin line for welding machine producer EWM of their mission to develop a customized automation resolution tailor-made to this multifaceted problem.
Automatic Recirculation Valves / Minimum move valves from Schroeder Valves are used all round the world for transporting liquids utilizing centrifugal pumps. Their areas of utility include refineries, power plants and nuclear vegetation, within the transport of liquefied pure fuel (LNG), as properly as in offshore rigs. They are also used throughout the chemical and manufacturing business (steelworks, pulp, sugar, distilleries) and within the utilisation of renewable energies.
Different sizes – one software.
The goal is to weld all pump protection valve components automatically. These valves are linked on to the pumps and ensure continuous operation of the pumps to stop them running dry or being broken by cavitation throughout minimal move situations. The pump protection valve is basically made up of the valve physique and the cone, which moves contained in the valve physique. The sealing surfaces between the valve physique and the cone must be completely air and watertight. This is the only way to make sure correct functioning of the pump protection valve for decades to come. Normally, these elements are made using low-cost construction metal DIN 1.0460. The sealing surfaces are bolstered with stainless steel DIN 1.4370. This course of was beforehand carried out manually, nonetheless, due to both the scarcity of good welders and rising quality assurance necessities, automation of this step was crucial. The internal diameter of the valve our bodies and the cone diameters had been between 32 mm and four hundred mm. The components being moved also differed vastly in weight, starting from a couple of hundred grams to 2 and a half tonnes. But the entire elements had one thing in widespread: they have been all rotationally symmetrical, making them excellent for an automatic course of. With this as a beginning point, EWM was capable of get the system planning ball rolling.
From Small to Big – Multiple Processing Stations
It quickly turned clear that only a robot system would fit the invoice when it came to automating this explicit process. Having to cope with so many various half sizes was a trigger for concern. Large elements require a big welding positioner. These, nevertheless, can’t provide the dynamics required for the smaller elements. This quickly gave rise to the thought of three processing stations: one large L-positioner with tilting operate for the big valve our bodies, one small turning/tilting positioner on a system bench for the small valve our bodies, and a 3rd station with a system bench with out positioners for any other elements. The peak of the building was also a selected problem. The elements had to be able to be placed on the benches with the crane. The crane hook, nevertheless, was solely roughly three metres excessive – extremely small for an industrial application. To guarantee accessibility whereas making certain extraction, either the extraction hood or the system benches had been made to be cell. The robot was fitted in an especially small sales space in the centre between the three stations. This booth also includes each the facility source and a Titan XQ. These are positioned behind the L-positioner at the large processing station. The Rob 5 drive 4X wire feeder mounted on the robotic arm ensures safe wire feeding. Access to the Fanuc Arc Mate a hundred iD in all three stations in any respect needed positions can additionally be ensured because of the intense arm size of two metres and optimised area contained in the cubicles.
Special torch for extreme areas
Each valve body is provided with a cone guide which is welded from above. With an inside diameter of simply 32 mm, entry is extraordinarily difficult. For guide welding, the welder is unable to see the weld seam and as a substitute should rely on their experience. Even for automated welding, these areas are very unusual. EWM was only able to accept this job as a end result of they manufacture the torches, emphasising the significance of the welding torch for this software. The welding torch for Schroeder Valves is a special building with a very small torch head and unconventionally long torch neck. Of course, the special software had to be adapted to accommodate this unusual design: as a end result of dilution between the parent steel and the armouring needs to be as low as potential, only a little power is used. This ensures secure heat dissipation despite the acute welding torch dimensions.
Secure welding outcomes through defined parameters
As the parts were rotationally symmetrical, it was simple to teach the elements; teaching is at all times primarily based on the same programs. Even new components could be welded automatically rapidly. Users simply should set the radius, variety of passes and the geometric dimensions of the surfaced parts and the robot control will deal with the remainder. The desired welding result’s all the time assured as a end result of the welding process is outlined with all of its parameters. The quality can additionally be proven retrospectively as all welding parameters are repeatedly monitored and recorded. Even although เกจ์ออกซิเจนsumo was originally designed and meant for one particular utility, Schroeder is already pondering of recent concepts and uses. Schroeder would like to try out a few of the various welding procedures which are included in the Titan XQ welding machine as standard. This will allow to additional optimise totally different kinds of surfaced parts. Schroeder are additionally seeking to broaden and improve the range of welding duties.
There are hundreds of Schroeder Valves put in in crops in southern Africa defending property at firms like Sasol, Eskom, Mondi and Sappi to name a couple of. Sulzer & KSB routinely use Schroeder valves to protect their pumps. Full restore and reconditioning amenities are available at Valve & Automation’s Secunda and Durban Valve Repair Centres. Please contact sales@valve.co.za, www.valve.co.za or cellphone 011 397 2833 or 0861 103 103 to learn extra.
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