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Setting and operation of the machine is made basically according to the following working steps:
- Clamping of the workpiece
· choice of the workpiece clamping means (note: parallelism, angularity, clamping force)Clamp the workpieces according to their shape safely and firmly and secure them against distortion and deformation.
- Clamping of the tool
· Clamp the tool short and firmly.Check the tools for operational reliability (visual inspection).
- Setting of cutting values
· Set the number of strokes per minute, stroke length, feed, cutting depth taking into consideration the tables available and graphical symbols.
Switch only when machine is at rest!
- Operation of the shaping machine (sequence of operations):
· Approach the tool to the surface to be shaped until the latter is contacted.
· Set the dial (tool slide) to "O".
· Swing the machine table aside so that the tool is no longer above the workpiece.
· Feed cutting depth according to dial.
- Start machine (switch on stroke).
· Move machine table by hand up to the tool.· Switch on feed of machine table and machine workpiece surface.
· After having machined the surface, switch off feed and disengage machine (switch off stroke). Ram should be in rear position.
· Switch off machine.
- Check for evenness, surface finish, accuracy to size.
- Unclamp and deburr the workpiece.
Note the following hints on labour safety:
- Never stand in front of the machine, but always beside the machine on the side of the control elements (splashing chips, danger of getting injured).- Make inspections of the workpiece or tool, on principle, only when the machine is at a standstill.
What operations have to be carried out after the workpieces have
been
unclamped?
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Why must workpieces, on principle, be deburred after they have
been
machined?
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