GB492872A - Improvements in copy milling machines - Google Patents

Abstract

492,872. Copy milling machines. DECKEL, F. March 21, 1938, No. 8649. Convention date, March 31, 1937. [Class 83 (iii)] A copy-milling machine having a stationary tool and tracer has separate carriers for the pattern and the work with means for coupling the said carriers allowing of separate adjustment thereof parallel to the tool and tracer axes. A transverse beam 2 carries adjustably the tracer head 4 with interchangeable tracer 8 and milling head 3, the cutter 6 being driven by a motor 7. The pattern 9 is secured to a table 10 mounted on compound slides 11 controlled by hand wheels 13, 14. These slides are carried on a bracket 12 adjusted periodically by a hand wheel 15. The table movements may also be effected automatically. The work 18 is mounted on a trailer table 16 supported freely on a second table 17 mounted similarly to the pattern table on compound slides 27 and vertically adjustable bracket 26 controlled by hand wheels 28 ... 30. The tables are rigidly connected for copying with stationary tracer and cutter axes by means of slotted angle brackets 20, 21, the slots of which are arranged to provide adjustments in three directions. In a modification, the connection between the pattern and trailer tables is freely movable vertically through coacting grooves 37, 38 and plate 39 as shown in Fig. 4. In this form, the relative horizontal adjustment of work and pattern in the plane containing the tracer and cutter axis is effected by relative adjustment of heads 3 and 4 on the beam 2. Instead of using the trailer table 16, the table 17 may be driven from the table 10 or vice versa by connection of the respective table actuating means, the connection being such that it may be made and broken in different relative positions of the tables. Also several work tables may be controlled simultaneously by a single pattern table. In some cases, for heavy work, the trailer table or tables may be supported on roller bearings.