{"id":19956,"date":"2026-11-09T05:16:09","date_gmt":"2026-11-09T03:16:09","guid":{"rendered":"https:\/\/bbr.news\/?p=19956"},"modified":"2026-10-30T10:24:54","modified_gmt":"2026-10-30T08:24:54","slug":"drives-for-faster-welding","status":"publish","type":"post","link":"https:\/\/bbr.news\/en\/drives-for-faster-welding","title":{"rendered":"Drives for Faster Welding"},"content":{"rendered":"

Shorter cycle times, precise motion sequences, and components tailored to the process are hallmarks of many automated manufacturing processes. Bosch Rexroth focuses on both the control of resistance welding processes and mechanical drive elements.<\/h3>\n

Examples include a projection welding technology developed in collaboration with Centerline, as well as modified ball and planetary screw drives for various industrial applications. For automated projection welding, Bosch Rexroth combines the PRC7000 welding controller with a servo-driven soft-mount welding gun from Centerline. According to the companies, this configuration can reduce cycle time by up to 60%.<\/p>\n

\"Bump
Bump welding is 60% faster with Centerline’s servo-driven Softmount welding gun.
\u00a9 Bosch Rexroth<\/figcaption><\/figure>\n

Position quickly and simultaneously<\/h4>\n

For this purpose, the servo-driven electrode is positioned quickly. Simultaneously, joining elements can be fed in even while the component or robot is moving. Individual process steps thus run in parallel instead of sequentially.<\/p>\n

According to the manufacturer, the shorter processing times also have an impact on energy and cooling requirements. In addition, the electrode is subjected to less thermal stress, which extends its service life.<\/p>\n

With regard to pure welding time, Centerline cites an example in which it was reduced from 100 to 10 ms. This is made possible by the integrated servo function of the welding controller and the design of the welding gun.<\/p>\n

The PRC7000 welding controller combines configurable hardware, adaptive controllers, and an open system architecture. This design enables the controller to handle a variety of resistance welding processes and base materials. An integrated servo logic system integrates the welding gun drive into the controller.<\/p>\n

Operation and commissioning are performed via the web-based PRI-web interface. The PRI7000 engineering software is also available for parameter configuration and process monitoring.<\/p>\n

Welding data available for additional applications<\/h4>\n

An IoT connector transmits process and quality data via OPC UA or MQTT to MES and cloud systems. The data collected during welding can thus be processed for process monitoring, quality assurance, and documentation.<\/p>\n

The Softmount welding pliers align with a punch hole before the fastener is joined by projection welding. The floating mounting compensates for tolerances in component dimensions, hole positions, or tools.<\/p>\n

In nut welding, the QFP (Quick Fastener Placement) unit handles the feeding. Welding nuts can be fed either while the robot is in motion or during idle periods. This reduces the portion of the total cycle time accounted for by feeding.<\/p>\n

The floating mounting also reduces lateral forces on the weld pins. This can reduce the mechanical stress on them as well as the effort required for robot programming.<\/p>\n

\"The
The PRC7000 welding controller plays a major role in increasing speed.
\u00a9 Bosch Rexroth<\/figcaption><\/figure>\n

Screw drives modified according to operating conditions<\/h4>\n

Ball and planetary screw drives have comparable requirements for application-specific design. Depending on the machine and area of application, requirements may include, for example, high dynamic performance, compact design, safety functions, corrosion protection, temperature management, or vacuum compatibility.<\/p>\n

Bosch Rexroth modifies components from its standard product line at the factory for this purpose. The range includes coatings, special lengths, and customer-specific machining, as well as combined spindles, special nuts, and pre-assembled units.<\/p>\n

The use of standardized basic components is intended to limit the design effort required for custom configurations. CAD data and technical documentation are available for integration into the respective machine design.<\/p>\n

For servo presses used in sheet metal forming, threaded drives with pre-assembled end bearings are also available. Pre-assembly reduces the number of steps required during design and machine assembly.<\/p>\n

In robotics, installation space, dynamics, and mechanical integration are the key factors that determine the design of the lead screw drive. In robotic welding grippers, for example, special nuts with external teeth are used. The nut is driven by a pinion, allowing the lead screw to be adapted to the specific installation situation.<\/p>\n

The Linear Technology Selector is available to assist with the selection and sizing of basic components. The standard components selected using this tool can then be modified to meet the design and functional requirements of the specific application.<\/p>\n

In addition, Bosch Rexroth is expanding its Performance Line of ball screws. The new FEH-E-B flanged single nut features a modified ball circulation system. Compared to the previous model, the dynamic load rating has increased by up to 14%, and the calculated service life has increased by up to 50%, according to the manufacturer.<\/p>\n

A key feature is a split ball chain with a reduced number of loops. This design alters the movement of the balls within the nut. The smoother motion is expected to have a positive impact on process quality and the service life of the ball screw, particularly during dynamic movements.<\/p>\n

The single flange nut with flange type B is available in eight sizes. The nominal diameters range from 32 to 63 mm, and the pitches range from 5 to 20 mm. The mounting dimensions are based on DIN 69051-5.<\/p>\n

Various preload and tolerance classes up to T3 are available for the ball screws. The sealing concept also includes a lubrication system.<\/p>\n

In addition to the FEH-E-B, the Performance Line includes two other nut types. The FAR series is designed for driven nuts. The dual-start nuts of the FED series are combined with multi-start screws. A total of 50 spindle sizes are available within the series. In addition to the standardized versions, Bosch Rexroth also manufactures application-specific modified ball screws upon request.<\/p>\n

Web:
\nwww.boschrexroth.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Shorter cycle times, precise motion sequences, and components tailored to the process are hallmarks of many automated manufacturing processes. Bosch Rexroth focuses on both the control of resistance welding processes […]<\/a><\/div>\n","protected":false},"author":9,"featured_media":19957,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1566],"tags":[1865],"class_list":{"0":"post-19956","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-newsletter-en","8":"tag-bosch-rexroth-en"},"yoast_head":"\nDrives for Faster Welding - bbr B\u00e4nder Bleche Rohre<\/title>\n<meta name=\"description\" content=\"Shorter cycle times, precise motion sequences, and components tailored to the process are hallmarks of many automated Newsletter\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bbr.news\/en\/drives-for-faster-welding\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Drives for Faster Welding - 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