| 摘要 |
The invention relates to a machine for trimming the window and door frames of semicircular- and flat-arched doors and windows and is characterised in that it consists of a columnar machine stand (1), which is fixed to the ground, receives the power lines and has supporting bars (2), arranged horizontally and advantageously in the form of an X and having adjusting slides (4), pneumatic clamping devices (5) and supporting strips (3) for the workpiece (14) to be worked, and of a supporting arm (8), which is mounted horizontally and rotatably at the head (6) of the machine stand (1) in a bearing (7) and at the two ends of which are arranged locking devices (12) for the tool holders (9), actuated by means of control devices (10) and having the bearings (11) for the radial movement of the tools (15). With the machine according to the invention, it is possible to deal with all working conditions arising in practice with utmost parallelism and dimensional accuracy and while saving a considerable amount of time. <IMAGE>
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