A mechanical arm is robotic, usually programmable, with similar functions to a human arm. The links of such a manipulator are connected by joints allowing either rotational motion (such as in an articulated robot) or translational (linear) displacement. The links of the manipulator can be considered to form a kinematic chain. The business end of the kinematic chain of the manipulator is called the end effector and it is analogous to the human hand. The end effector can be designed to perform any desired task such as welding, gripping, spinning etc., depending on the application. My idea is to make a robotic arm which works on slightly movement of muscles for disabled persons to fulfill the duty to assist in the daily activities likes playing chess with friends
or drinking water.In this project i have used motors that is operated by sensors which will work on the movement muscles of hand.The only goal of the project is to integrate into society and improve the quality of life of persons with disabilities.
"The future belongs to those who believe in the beauty of their dreams."
Step 1: Hypothesis
Step 2: Research
Likewise I am thinking to develop a robotic arm controlled by muscle power that will be wired by sensors and control the robotic arm. I am researching the easier ways to operate the arm for disabled persons.
Step 3: Create
In robotic arm there are four important parts named as-:
· Bottle <to attach arm and cutted portion>
· Elbow motor <to operate movement of elbow>
· Wrist motor <to operate movement of fingers>
· Sensors <to control robotic arm with movement of muscles>
Bottle: - It is used to join the robotic arm to cutted portion .I researched that bottle shape is perfect shape to join cutted portion
Elbow motor: - Elbow motor is used to perform work of elbow. I researched that elbow motor needs to be more powerful to work with weight of wrist motor, second supporting road and the object we are picking..
Wrist motor: - Wrist motor was trick for me because to perform the actions of figure is very hard. I found two grippers while researching which were useful. First gripper was capable to pick up any type of kitchen objects like picking up cup to drink tea. Second griper is designed and made by me that can pick up small objects like ball, pencils, pens etc…
Sensors: - To found movement sensors in market is very hard to found in my city so created my own sensors that are worked by the movement of figures of legs. Due to shortage of time I didn’t connected sensors to the arm. Arm is operated by click of button.
This sensor really works, but i have not connected to the arm but i have tested it on light.
How it works?
As you are seeing in above picture there is above blue type of thing.It has two poles it is connected to finger, little down there is a aluminum foil. When you lift up your thumb two poles get connected and net work is completed. SIMPLE...
REAL PROJECT OVERVIEW..