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30 classic special-shaped parts machining principles-1

1.Device for Correcting Grinding Wheel

The combination of the two parallelograms allows the tool point to draw a circular curve. The yellow joint rotates around the virtual axis.

2.Cutting gear on the shaper 1

The direct contact between the cable and the green disc must be equal to the gear pitch circle diameter. The number of holes in the blue disc is equal to the number of teeth. Rack and pinion drive can be used instead of cable to avoid cable sliding.

3.Cutting gear on the shaper 2

This method is only used for small module M and small tooth number Z of gear. The tool is in the shape of a rack. You don’t need to transpose. The total displacement of the table carrying the work piece must be greater than ╥mz.

4.Portable boring machine

Combination of planetary gear drive and nut screw drive. The blue axis carrying the nut screw is the input. The red tool is fixed on the pink nut slider and has a small spiral motion. This mechanism is used for large parts (glass) which are difficult to process in lathes or boring machines.

5.Grinding wheel equilibration 1

6.Grinding wheel equilibration 2

Grinding wheel assembly between four free rollers. If the assembly is statically unbalanced, gravity causes its center of mass to be under the assembly axis. Move the pink weights into the dovetail groove of the component, hold them in place for balance, and test the component again. The function of the four rollers is to minimize the friction caused by assembly rotation.

7.Web-cutting mechanism 1

Four-link with extended coupler can cut the yellow connection plate at high speed. The function of this connecting rod is to give the cutter a speed equal to the speed of the connecting plate during the cutting motion.

8.Web-cutting mechanism 2

The parallelogram mechanism with knife on the coupler can cut the yellow connection plate at high speed. The function of this mechanism is to give the cutter a speed equal to the speed of the connecting plate during the cutting motion. The role of the green bar is to assist the mechanic in overcoming dead corners.

9.Mechanism for slicing machine

10.Cam-driven scissors 1