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A collection of 50 animated GIFs showcasing classic mechanical structures—gaining a deeper understanding of many mechanical principles.
summary：1. Drophammer Input: Green pulley shaft There is a sliding key between the green shaft and the red hollow shaft. The up-and-down movement of the yellow slider depends on the green rod. 2. Friction Press 1
1. Drop hammer
Input: Green pulley shaft
There is a sliding key between the green shaft and the red hollow shaft.
The up-and-down movement of the yellow slider depends on the green rod.
2. Friction Press 1
Input: Green pulley shaft
There is a sliding key between the green shaft and the red hollow shaft.
The blue disc alternates contact with two red discs via screws.
The up-and-down movement of the yellow slider is controlled by the purple rod.
The slider reaches its maximum speed at the low position of its stroke and also at the high position.
The pink stopper determines the slider’s high position.
3. Friction Press 2
Input: Center pinion
The purple disc carries four gears and two roller pins.
The roller posts alternately contact the yellow disc and impart reciprocating motion to the screw.
The rod has three distinct positions corresponding to the up, down, and dwell movements of the blue nut-slider mechanism.
There is a stopper that keeps the disc stationary when it’s at rest, but it’s not visible.
4. Handpunch Machine 1
The combination of gear transmission and the slider-crank mechanism.
5. Handpunch Machine 2
Disc cam and linear reciprocating follower.
6. Handshearing Machine 1
A planetary gear was used.
Hand power is applied to the satellite gear.
Other gears are fixed.
The tool platform above is fixed to the carrier.
7. Handshearing Machine 2
A four-bar linkage mechanism was used.
Hand power is applied to a crank.
The tool platform above is fixed to other cranks.
8. Foot shearing machine 1
The blue slider is driven by a slider-crank mechanism.
The crank is a purple pedal lever.
The orange low-shear blade is fixed to the mechanism base.
The red upper cutting blade has a beveled edge, which can reduce the shearing force.
9. Footshearing Machine 2
The blue slider is driven by a six-bar mechanism.
The green slider’s motion path is on the blue slider.
The orange low-shear blade is fixed to the mechanism base.
The red upper cutting blade has a beveled edge, which can reduce the shearing force.
10. Tablewoodsaw1
Adjustment movement of the orange circular blade:
Use the pink nut for up-and-down movement. The motor is adjusted by the pink pin.
Use the orange nut for tilting motion.
11. Tablewoodsaw2
Adjustment movement of the orange circular blade:
Use the pink nut for up-and-down movement. The motor and blade shaft are adjusted by pink pins.
Use the pink nut for tilting motion.
12. Flipping Mechanism 1 (Flippingmechanism1)
This mechanism can flip a flat panel using two four-bar linkages.
The two flip boards are actually extensions of the fourth rod in two four-bar linkages.
13. Flipping Mechanism 2 (Flippingmechanism2)
Connecting rod length: 50
Two crank lengths: 120 and 140
Distance between two fixed bearings: 50
A 180° rotation of the workpiece corresponds to a 90° rotation of the blue crank.
14. Transport Mechanism 1
The egg-shaped motion of the blue joint serves to move the red workpiece.
It is the locus of a point on the 4-bar mechanism with a pink rod.
The yellow rod and the orange rod are connected to form a parallelogram mechanism.
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