Hand-manipulator with your own hands: how to do?

We'll look at how the hand-manipulator is done by hand, on industrial designs. First, the general questions will be touched upon, then the technical characteristics of the result, the details, and finally the assembly process itself.

In general and general

The creation of this device as a whole should not cause any difficulties. It will be necessary to think out qualitatively only the possibilities of mechanical movements, which will be quite difficult to carry out from a physical point of view, so that the manipulator hand performs the tasks assigned to it.

Technical characteristics of the result

A sample with a length / height / width parameter of 228/380/160 millimeters, respectively, will be considered. The weight of the manipulator hand, made by hand , will be about 1 kilogram. A wired remote control is used for control. The approximate assembly time in the presence of experience is about 6-8 hours. If it is not, then days, weeks can go away, and with connivance and months, so that the manipulator arm is assembled. With your own hands and one in such cases, it is worth doing only that for your own interest. For the motion of the components, collector motors are used. With enough effort, you can make a device that will rotate 360 degrees. Also, for convenience of work, in addition to the standard tools like a soldering iron and solder, it is necessary to stock up:

1. Extensive pliers.
2. Lateral nippers.
3. A cross-head screwdriver.
4. 4 batteries of type D.

The remote control can be implemented using the buttons and the microcontroller. If you want to make remote wireless control, an action control element is also needed in the hand-manipulator. Only devices (capacitors, resistors, transistors) that will allow to stabilize the circuit and transmit current at the required moments of time of the required magnitude will be needed as additions.

Small parts

To adjust the number of revolutions, you can use the transitional wheels. They will make the hand-manipulator move smoothly.

Also, care should be taken to ensure that the wires do not complicate its movement. It will be optimal to build them inside the structure. You can do everything from the outside, this approach will save time, but can potentially lead to difficulties in moving individual nodes or the entire device. And now: how to make a manipulator?

Assembly in general

Now proceed directly to create a hand-manipulator. We start from the bottom. It must be possible to rotate the device in all directions. A good solution is to place it on a disk platform, which is driven by a single motor. So that it can rotate in both directions, there are two options:

1. Installation of two engines. Each of them will be responsible for turning in a specific direction. When one works, the second is at rest.
2. Installation of one engine with a circuit that can make it spin in both directions.

Which of the options to choose depends entirely on you. Then the basic construction is done. For the comfort of work you need two "joints". Attached to the platform should be able to tilt in different directions, which is solved with the help of engines located at its base. Another one or a pair should be placed at the elbow bend point, so that part of the gripper can be moved along the horizontal and vertical lines of the coordinate system. Further, if you want to get the maximum possible, you can install another engine in place of the wrist. Further the most necessary, without which the hand-manipulator is not represented. We have to make the capture device with our own hands. There are many options for implementation. You can give guidance on the two most popular:

1. Only two fingers are used, which simultaneously compress and release the gripping object. It is the simplest implementation, which, however, usually can not boast a significant load capacity.
2. A prototype of the human hand is being created. Here, for all fingers, one motor can be used, with the help of which the bending / bending will be performed. But you can make the design more difficult. So, you can connect to each finger on the engine and manage them separately.

Next, it remains to make a remote control, through which will affect the individual engines and the pace of their work. And you can start experiments using a robotic manipulator, made by yourself.

Possible schematic images of the result

Hand-manipulator with their own hands provides ample opportunities for creative inventions. Therefore, we present to your attention several implementations, which can be taken as a basis for creating your own device of such a destination.

Any represented scheme of the manipulator can be improved.

Conclusion

Important in robotics is that there is practically no restriction on functional improvement. Therefore, if you want to create a real work of art is not difficult. Speaking about possible ways of further improvement, it should be noted truck mounted crane. With their own hands to make such a device is not difficult, at the same time it will allow children to be taught to work, science and design. And this, in turn, can positively affect their future life. Is it difficult to make a self-loading crane? This is not as problematic as it might seem at first glance. Unless it is necessary to take care of the presence of additional small details like a cable and wheels, on which it will spin.