| 摘要 |
1,214.971. Milling. D. W. R. WALKER. 5 Nov., 1968 [16 Nov., 1967], No. 52150/67. Heading B3K. Apparatus for removing surplus material e.g. weld flash, particularly from workpieces of elongate form such as rods, tubes or rings comprises at least two cutter assemblies having independently driven cutters rotatable about adjustably spaced parallel axes and at least one spacing member mounted coaxially with and adjacent to each cutter to limit the depth of cut. In the embodiments described each cutter motor, which may be electric or pneumatic, drives its cutter through a bevel gear arrangement mounted in the motor housing so that the cutter axis is at right angles to the motor axis. In the first embodiment, Fig. 2, the cutter and motor assemblies 15 are mounted on pivotally supported plates 19 which are adjustably spaced by screw means 23-26. Work to be trimmed is placed against a stop 27 and turned manually through an arc of 180 degrees. Rollers (18, Fig. 1, not shown) mounted coaxially with the cutters limit the depth of cut. In a second embodiment (Fig. 4) the work is guided and clamped by work holders 65 while the cutter assemblies 44 are transversely slidable on a slide plate 48 which is pivotable on bearings 47, the whole assembly being longitudinally slidable on guide bars 43. The cutter heads 49, 49a are interconnected by a manually swingable frame 50 which allows for the cutter heads to be moved mutually, each around the half circumference i.e. through 180 degrees arc, of the workpiece. The frame 50 carries a pneumatic ram which serves to urge one cutter head towards the other and each cutter head is mounted adjacent V-shaped work locating members. |
