1. Making sphere on a milling machine 1 (Making sphere on a milling machine 1)
The workpiece is clamped on the chuck of the indexing head and rotated by hand.
The tool is clamped on a spindle that allows it to be adjusted radially.
2. Making sphere on a milling machine 2 (Making sphere on a milling machine 2)
Process convex asymmetric sphere surface.
The workpiece is clamped on the chuck of the indexing head and rotated by hand.
The tool is clamped on a spindle that allows it to be adjusted radially.
The workpiece axis and the mandrel must intersect.
The position of the tool point relative to the workpiece determines the dimension of the surface of the sphere to be machined.
3. Making sphere on a milling machine 3 (Making sphere on a milling machine 3)
Process concave sphere surface.
The workpiece is clamped on the chuck of the indexing head and rotated by hand.
The tool is clamped on a spindle that allows it to be adjusted radially.
The workpiece axis and the mandrel must intersect.
The position of the tool point related to the workpiece determines the dimension of the surface of the sphere to be machined.
4. Milling square with Reuleaux polygon
5. Milling triangle with Reuleaux polygon
6. Milling hexagon with Reuleaux polygon
7. Milling profile 1 (Milling profile 1)
Eccentric pink shaft input.
The red cutter mills the contour on the yellow workpiece, and the yellow workpiece is fixed on the gray gear shaft.
The transmission ratio of the pink pulley to the gray gear shaft is 6, so the star profile created has 6 wings.
Due to the irregular rotation of the gray gear shaft, the wings are not symmetrical.
The contour shape depends on the relative position of the cutter and the workpiece.
The black belt represents the toothed belt.
It is better to use chain drive instead of belt drive.
8. Planetary gear transmission track B5 (Loci in Epicyclic gearing B5)
A device for milling pentagons.
r: fixed pitch radius of the green sun gear
R: Pitch radius of the yellow planetary gear
K=R/r=5
In order to obtain a rounded pentagonal trajectory, the distance between the red tool axis and the sun gear axis is (8/30)r.
Pink disk input.
9. Device for milling Archimedean spiral groove (Device for milling Archimedean spiral groove)
Combination of bevel gear satellite drive and nut-screw drive.
10. Jig for milling inner culindrical surface (jig for milling inner culindrical surface)
11. Device for Correcting Grinding Wheel
The combination of two parallelogram mechanisms allows the tool point to draw a circular arc curve.
The yellow joint rotates around the virtual axis.
12. Cutting gear on the shaper 1 (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 on the blue disk is equal to the number of teeth.
A rack and pinion drive can be used instead of cables to avoid cable slippage.
13. Cutting gear on the shaper 2 (Cutting gear on the shaper 2)
This method is only used for the small gear module m and the number of small teeth z.
The tool is in the shape of a rack.
No need for indexing.
The total displacement of the table carrying the workpiece must be greater than ╥*m*z.
14. Portable boring machine 1 (Portable boring machine 1)
Combination of planetary gear drive and nut screw drive.
The blue shaft carrying the nut screw is the input.
The red tool is fixed on the pink nut slider with a small pitch spiral movement.
This mechanism is used for large workpieces (glass) that are difficult to machine on a lathe or boring machine.
15. Grinding wheel equilibration 1
The grinding wheel assembly is between two parallel shafts.
If the component is statically unbalanced, gravity causes its center of mass to be below the assembly axis.
Move the green weights into the dovetail slot of the component, fix them to obtain balance, and then test the component again.
16. Grinding wheel equilibration 2
The grinding wheel assembly is between the four free rollers.
If the component is statically unbalanced, gravity causes its center of mass to be below the assembly axis.
Move the pink weights into the dovetail slot of the component, fix them to obtain balance, and then test the component again.
The function of the four rollers is to minimize the friction caused by the rotation of the assembly.
17. Web-cutting mechanism 1 (Web-cutting mechanism 1)
The four-bar with expansion coupler can cut off the yellow connecting plate at high speed.
The function of this connecting rod is to give the knife a speed equal to the speed of the connecting plate during the cutting motion.
18. Web-cutting mechanism 2 (Web-cutting mechanism 2)
The parallelogram mechanism with a knife on the coupler can cut the yellow connecting plate at high speed.
The function of this mechanism is to give the knife a speed equal to the speed of the connecting plate during the cutting motion.
The role of the green rod is to assist the mechanism to overcome dead ends.
19. Mechanism for slicing machine
20. Cam-driven scissors 1 (Cam-driven scissors 1)
21. Drop hammer
Input: Green pulley shaft
There is a feather key between the green shaft and the red hollow shaft.
The up and down movement of the yellow slider depends on the green lever.
22. Friction press 1 (Friction press 1)
Input: Green pulley shaft
There is a feather key between the green shaft and the red hollow shaft.
The blue disc-screw alternately contacts the two red discs.
The up and down movement of the yellow slider is controlled by the purple lever.
The slider reaches the maximum speed at the lowest position of the stroke, and the maximum speed at the highest position.
The pink stop determines the highest position of the slider.
23. Friction press 2 (Friction press 2)
Input: Center pinion
The purple plate carries four gears and two rollers.
The rollers alternately contact the yellow disk and reciprocate the screws.
Reflecting the up, down and dwell movement of the blue nut-slider mechanism, the rod has three different positions.
There is a stopper that keeps the disc stationary while it is parked, not shown.
24. Hand punch machine 1
Combination of gear transmission and slider-crank mechanism.
25. Hand punch machine 2
Disc cam and linear reciprocating follower.
26. Hand shearing machine 1
A planetary gear is used.
Manual force is applied to the satellite gear.
The other gears are fixed.
The upper tool table is fixed on the carrier.
27. Hand shearing machine 2
A four-bar linkage mechanism is used.
Manual force is applied to a crank.
The upper tool table is fixed to the other cranks.
28. Foot shearing machine 1
The blue slider is driven by a slider crank mechanism.
The crank is a purple pedal.
The orange low-cut sheet is fixed to the base of the mechanism.
The red upper shearing blade has a beveled edge to reduce the shearing force.
29. Foot shearing machine 2
The blue slider is driven by a six-bar mechanism.
The movement track of the green slider is on the blue slider.
The orange low-cut sheet is fixed to the base of the mechanism.
The red upper shearing blade has a beveled edge to reduce the shearing force.
30. Table wood saw 1
Position adjustment movement of the orange round blade:
Use the pink nut to move up and down. The motor is adjusted by the pink pin.
Use orange nuts for tilting movements.
31. Table wood saw 2
Position adjustment movement of the orange round blade:
Use the pink nut to move up and down. The motor and blade shaft are adjusted by pink pins.
Use the pink nut for tilting movement.
32. Flipping mechanism 1
This mechanism can flip a flat board through two 4-bar mechanisms.
The two flip boards are actually an extension of the fourth rod of the two 4-bars.
33. Flipping mechanism 2
Link length: 50
Two crank lengths: 120 and 140
Distance between two fixed bearings: 50
180° rotation of the workpiece corresponds to 90° rotation of the blue crank.
34. Transport mechanism 1
The egg-shaped movement of the blue joint is used to move the red workpiece.
It is the trajectory of one point on the pink lever 4-bar mechanism.
The yellow rod and the orange rod are connected to form a parallelogram mechanism.
35. Parallel-link feeder 1 (Parallel-link feeder 1)
The function of the parallelogram mechanism is to transport the workpiece.
The green rod assists the mechanism to overcome the dead angle.
36. Parallel-link feeder 2 (Parallel-link feeder 2)
The function of the parallelogram mechanism is to transport the workpiece.
The green rod assists the mechanism to overcome the dead angle.
The red circle is the track of a point on the yellow conveyor.
37. Movable spring feed-duct
As a feed tube for balls or short rollers.
38. Part orientation
The groove of the yellow disc is the key.
39. Mechanism for advancing a strip
Input: low green axis
The rollers are connected by a square hole on the blue track and the orange belt.
The upper green shaft on which a gear and an incomplete roller are fixed can slide in the vertical groove on the yellow base.
The friction between the belt and the roller is generated by the red spring.
The incomplete contour of the upper roller pushes the belt.
40. Bring in the camera (Band advancer)
Input: blue shaft carrying two gears
The friction between the black belts causes the brown belt to move forward.
The belt pretensioner consists of two orange rollers and a pink screw with left and right helix at the end.
