+1 vote
in Machine Kinematics by (38.0k points)
The mechanism in a shaping machine is

(a) a closed 4-bar chain having 6 revolute pairs

(b) a closed 6-bar chain having 6 revolute pairs

(c) a closed 4-bar chain having 2 revolute and 2 sliding pairs

(d) an inversion of single slider crank chain

This question was posed to me in a dream while sleeping

I'm obligated to ask this question of Inversions of Four Bar Chain topic in chapter Simple Mechanisms of Machine Kinematics

1 Answer

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by (106k points)
Right option is (d) an inversion of single slider crank chain

The explanation: Shaping machines use quick return mechanism which are either Whitworth quick return mechanism or crank and slotted lever quick return mechanism. These are inversions of single slider crank chain.

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