Liebherr offers a hobbing machine equipped with a separate chamfer cut unit for deburring and chamfering workpieces ranging to 180 mm. The workpiece undergoes gear hobbing on a stable, maximum-rigidity device using the one-cut strategy, while chamfering occurs on a simpler, collision-optimized fixture. The length of the hobbing tool can be maximized to reduce total tool costs. The deburring unit is integrated within the existing machine dimensions but away from the hobbing tool, saving time and reducing the cost of chamfering. Designed to meet the demands of the automotive industry, the two-in-one machine is capable of generating smaller, more precise chamfers such as those required for transmission components.
Chamfering tools with diameters of 40 mm can be used to prevent collision and facilitate accessibility. Both face edges of the workpiece can be chamfered without changing the rotation direction. According to the company, all common chamfering procedures are offered, and the appropriate one is chosen according to individual requirements. The machine concept avoids material deformation, reduces needle chips from the chamfer in the main work area and provides an extended service life for dry machining. Separate settings are possible for hobbing and chamfering.
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