At the end of this lesson, the students will be able to;(i) Demonstrate the configurations and functions of shaping machine,planing machine and slotting machine(ii) Illustrate the kinematic systems and explain the working principles ofshaping machine, planing machine and slotting machine(iii) Show and describe the various machining applications of shaping,planing and slotting machines.
(i) Configurations and basic functions of
A photographic view of general configuration of shaping machine is shown inFig. 4.4.1. The main functions of shaping machines are to produce flatsurfaces in different planes. Fig. 4.4.2 shows the basic principle of generationof flat surface by shaping machine. The cutting motion provided by the linearforward motion of the reciprocating tool and the intermittent feed motionprovided by the slow transverse motion of the job along with the bed result inproducing a flat surface by gradual removal of excess material layer by layerin the form of chips. The vertical infeed is given either by descending the toolholder or raising the bed or both. Straight grooves of various curved sectionsare also made in shaping machines by using specific form tools. The singlepoint straight or form tool is clamped in the vertical slide which is mounted atthe front face of the reciprocating ram whereas the workpiece is directly orindirectly through a vice is mounted on the bed.Version 2 ME, IIT Kharagpur