Domin 用 STUDER S33 双砂轮磨床实现液压阀微米级精密磨削
Pioneers in hydraulics: How Domin manufactures revolutionary valves with the micrometer precision of the S33
Domin 借助 STUDER S33 外圆磨床的双砂轮配置，将液压阀阀芯和阀块的磨削提升到微米级精度，实现批量生产中零件的完全互换，不再需要此前的人工配对。S33 可在单台机床上同时磨削阀芯的直径与台肩，工艺设计无需更换砂轮或移动尾座，既缩短装夹时间，也降低了出错成本。S6 Pro 阀由电火花加工改为在 S33 上外圆磨削后，加工时间从近一小时缩短到仅五分钟。STUDER 英国/爱尔兰及比荷卢地区销售经理 Michael Läuffer 表示，双方工程师从一开始就沟通顺畅，共同确定 S33 为最优机型并按具体生产要求完成配置。Domin 方面 Adams 称，得到的不只是一台机床，而是一套周密的解决方案，技术支持和响应速度一流。面向未来，Domin 计划产量呈指数级增长，下一步已确定实现零件自动上下料，这也是选择具备智能且面向未来自动化选项的 S33 的原因之一。
Overall, the S33 has enabled Domin to raise its production to a higher level. Thanks to the extremely low tolerances, the hydraulics specialists can now produce their valve spools and blocks as fully interchangeable components in series production. The manual pairing of components that was previously necessary is no longer required. For Domin, the decisive technological advantage of the S33 was its configuration with two grinding wheels. "The ability to grind both the diameters and the shoulders of the spools in a single machine is a game changer for us," says Adams, explaining: "We know that if there is a possibility for errors, they are likely to occur at some point. To reduce this risk, we designed the process so that grinding wheel changes or tailstock movements are not necessary. This approach not only reduces setup time, but also minimizes the costs typically associated with errors. In addition, the transition from EDM to cylindrical grinding on the S33 for the S6 Pro valve has led to a dramatic improvement in efficiency—machining time has been reduced from nearly an hour to just five minutes.
Domin and STUDER also enjoy a trusting working relationship. "Communication between our specialists and the excellent engineers at Domin worked very well right from the start. Together, we were able to identify the S33 as the optimal machine and configure it for the specific production requirements," recalls Michael Läuffer, Area Sales Manager UK/Ireland and Benelux at STUDER. This advice and mutual trust were key for Domin. "We didn't just get a machine; we got a well-thought-out solution. The technical support and ability to respond to our wishes were first-class and made the entire implementation process much easier," confirms Adams.
Looking to the future, Domin is clearly focused on growth. Production volume is set to increase exponentially in the coming years. To cope with this, the next step has already been decided: automating part loading is the next milestone on the road to highly efficient series production. This is another reason why the S33 with its smart and future-proof automation options was chosen. "With STUDER, we have a partner at our side who will accompany us through these development steps and help us realize our vision of a fully automated, intelligent manufacturing process," summarizes Adams.
来源：STUDER · 精密圆柱磨削 · studer.com