Centerline welding guns featured on how its made clip. Obara brand is known out of automotive industry too. Seam welding machines are same as that of spot welding and the principle of this welding is also similar. Obara s portable spot welding guns are used in todays modern production environment due to their process flexibility, ease of maintenance, and low cost. Join the grabcad community today to gain access and download. Instruction manual welding controller siv21s series siv21 series obara. Welding equipment, electrodes, spot welding guns, transformers, cables, tip dressers, changers, welding controllers, timercontrollerintegrated portable transformer, ancillary equipment for spot welding. View and download obara korea stn21 series instruction manual online. Apr 12, 2018 a spot welding machine is generally known. If you have any queries, please contact us by clicking here. Fully automatic spot welding system for application in automotive industry 2. Services obara technology for spot resistance welding. Movable resistance welder is typically referred to as welding guns. The pr2000 inverter resistance spot welding system is a powerful 3 or 1 phase spot welder utilizing the new inverter technology to produce higher quality, faster repair jobs.
Gun selection can be made direct from obara standard catalogue which is set out in a modular system, making the decision of specification an easier one. Also for ensuring safety, the welding machine should be operated by those who fully understand the information contained in this instruction manual and have knowledge and skills of safe operation. Since 1935, our headquarters in japan, dengensha toa co. You can purchase items from our wide offer of capital equipment, spare and consumable parts for spot resistance welding. Portable spot welding transformer manual obara korea corp. During that time, pneumatic robot drives were replaced by electric models while load capacity increased from 45kg to. With the development of car industry, welding guns evolved from manual guns to robotic. The display to the left gives an example of data on 8 guns with the step up function enabled. Obara s servo gun achieves a short operating time, enhances quality, improves the operating environment and saves energy, thanks to its controllable servo motor instead of a pneumatic cylinder. Obara mexico aguascalientes con gusto te presentamos nuestro video corporativo. The grabcad library offers millions of free cad designs, cad files, and 3d models. Both spot and seam welding machines consist of a bedframe, a transformer and a pressure mechanism with an interlocked switch. Resistance spot welding gun with force amplification new potentials for welding of ahss with airpowered welding guns jonny kaars m.
Jun 25, 1991 it is therefore an object of the present invention to provide a ctype welding gun having a welding transformer, an equalizer, an air cylinder and a yoke which are respectively separate units which can be replaced individually so that the optimum ctype welding gun can be selected in response to the variation of the work within a short period. Welding gun, offered by obara india private limited, a leading supplier of welding gun in pimpri, pune, maharashtra. The preprogrammed weld modes automatically select the proper weld current and weld time while the. Every inch of a dengensha gun is designed for minimal weight and size. Obara new robot gun series it is almost a quarter of a century since spot welding robot guns were introduced to automobile assembly lines. In addition, a seam welding machine incorporates a roller electrode drive system.
Names of major components of portable spot welding gun. Clears the gun spot count when the welding spot count is indicated. We produce high quality range of spot resistance welding tip holders in czech republic. Choosing a backup generator plus 3 legal house connection options transfer switch and more duration. The latest in resistance welding technology, the traditional pneumatic operating cylinder is replaced with a servo motor connected directly into a driver unit which controls speed, point pressure and stroke. The welding gun is of a c type, an x type, or the like and a pair of shanks of the welding gun are driven to be capable of closing and separating from each other. Gun selection can be made direct from obara standard catalogue which is set out in a modular system, making the decision of. The company was incorporated in 2011 and is registered with indiamart. With the development of car industry, welding guns evolved from manual guns to robotic applications. Through the decades of research and development together with the market, obara s pt series transformer is produced with the highest quality and performance. Dengensha has the worlds most complete line of high quality welders, feeders, weld guns, controls, consumables and spare parts your total source in resistance welding.
Obara is one of the biggest supplier of spot welding technology and its history started in 1955 year. Obara korea stn21 series instruction manual pdf download. Used 2005 obara spot welding gun spot welding gun in. The concept is the latest in modular weld gun design. Servo motor driven guns contribute to improvement of productivity and welding quality. St21, rated power 180kva, supporting xtype manual welding gun model. Danger never fail to swich off the power when there is a possibility of.
Airborne splashes and spatter may hurt your eyes andor cause burns noise may cause hearing disorders. Obara corporations weld gun r elying on 50 plus years of global resistance welding experience, the obara corporation has developed new weld gun technology. The spot welding machine is a local welding machine using electrical resistance heat and is generally provided in a form of a welding gun. After reading the manual, keep it on hand to ensure effective use. Pdf online precision measurement of weld indentation in. Resistance spot welding parameters optimal selection for.
As the leading global company, obara has always been highly regarded by. Fully automatic process control in robot application, no settings required as soon as the robot has positioned the welding gun, the start signal from the robot will be received from the control unit, which is using a virtual machine vm based on microcomputer design. Diameter of the electrode contact surface should be. Resistance spot welding gun with force amplification. Obara welding guns are renowned for their quality in order to satisfy customer requirement. Pdf resistance spot welding rsw is the dominant joining method for steel auto. If the gun is pneumatic, the xrc turns on the output to close the gun. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Do not use the welding machine for any other purposes than welding. These are best suited for welding small fasteners, such as m6 and m8 weld nuts, as well as other longterm singlesetup projects. Robotic welding guns also saw multifarious changes such as the integration of the. Obara is a comprehensive manufacturer of the resistance welding systems typically used for car bodies.
Thus, a spot weld made in two sheets, each 1 mm in thickness, would generate a nugget 5 mm in diameter according to the 5t. Consider it an experienced second opinion in a specialized field. This equipment is a transformer mainly used for spot welding of robot gun at the automatic welding line. As the leading global company, obara has always been highly regarded by automobile industry over the world. X type portable gun obaras portable spot welding guns are used in todays modern production environment due to their process flexibility, ease of maintenance, and low cost. Based on the 3d models and related information about the metal sheets that will be spot welded, transferred by the customer, a concept welding gun design is generated. The present invention relates to a ctype welding gun provided with an air cylinder, an equalizer disposed over the air cylinder, and a welding transformer disposed over the equalizer. About us obara technology for spot resistance welding. The robot is programmed to know when the gun reaches the speci. Years of experiences, unique ideas and technology help us to propose the most suitable solutions for high capacity production of our customers.
We hope this website gives you an insight into our products and services. One general criterion of resistance spotwelding is that the weld shall have a nugget diameter of 5t 12, t being the thickness of the steel sheet. Industrial robot, cleaning robot, robot controller, robot software and customer support. Obara 500 kg ctype servo weld guns dual linear and rotating servodriven fixture shuttles automatic tip dressing and changing 1 x spot welding robtic cell obara 500 kg ctype servo weld guns. A sevenaxis robot handles the servo gun as a common pneumatic type welding gun. This virtual assembly is designed to insure the requested weld force and adapted to spot weld in the required areas. This virtual assembly is designed to insure the requested weld force and adapted to spot weld.
Fully automatic spot welder for automotive production, 10 khz c gun czechoslovakia. The use for the application of continuous power supply which necessitate incessant power supply may cause the trouble such as burning resulting from heating. From spot welding and projection welding, to seam or butt welding, we provide the optimum solution. Optimization of spot welding process parameters for maximum tensile strength manoj raut 1 and vishal achwal corresponding author. In addition to offering an abundance of resistance welding consumable products, the centerline electrodes division is also a manufacturer and supplier of wire welding contact tips, insulating materials and bushings, weld gun replacement parts, castings, forgings, shunts, cables, spot welding machine arms and caps, seam. Welding equipment, welding guns and feeders dengensha.
Ssstnsttnntn21 series 21 series21 series obara obara koreakoreakorea page 1 instruction manual welding controller stn21 series power tpdp connector. As a side effect the so developed welding guns based on geometrically small sized 10 khz transformers and new gun design mainly on aluminum materials there were saved around 60 to 70 percent of the weight in comparison with guns build in state of the art. The weldhelp resistance welding troubleshooting guide is written for operators and engineers to help diagnose and solve common spot welding defects and issues, projection welding and seam welding applications. Compact gun weights 30 kilos less the previous versagun and is more compact of about 300mm. Fully automatic spot welding system for application in. A single gun body with a standard mount bracket is used to construct both the x and c. The medar weld control provides power to the spot welding gun. Finally, nachi together with our welding partners, obara and art hikari, are pushing the envelope in resistance welding with lightweight modular guns and spot welding solutions for aluminum parts. Use appropriate protective devices to protect yourself and others from splashes, spatter, and noise that are generated during welding operations. Taking obara integrated resistance spot welding machine.
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