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Language Study. A) Fill in the gaps with the words from the box: welding torch, manipulator, stimuli, controller





 

A) Fill in the gaps with the words from the box:

welding torch, manipulator, stimuli, controller, drive, robot arm, endurance, to decipher, welding torch, sensors, manipulator, axes

Industrial robots are commonplace in assembly, painting, welding, packaging and other industries that require high speed, 1)…… and precision. The International Standards Organization for Standardization defines an industrial robot as "automatically controlled, reprogrammable, multipurpose 2)…… programmable in three or more 3)……" Industrial robots are machines that perform specific tasks according to programmed instructions that specify their acceleration, deceleration, direction and even chart out how many times a single process has to be performed within a given period of time. Industrial robots have highly technical components that require constant maintenance for maximum performance.

A 4)…… is the external, coordinating component of an industrial robot. It gives instructions, in order of their execution, to various parts of the robot to coordinate work. It also manages all external connections -- connections made between the robot and other machines. They are typically computers that function by running sets of instructions or programs.

The 5)…… is the extendable part of an industrial robot that puts instructions in motion. Some of the more advanced industrial robot models have parts called the shoulder, joints and elbow.

The effector forms a bride between the robot and material that requires manipulation. It behaves as a hand and makes direct contact with materials. Effectors are modified according to their end needs. Common effectors include scalpel, tweezers, vacuum pump, 6)…… and other attachments that allow the robot to function.

The industrial robot 7)…… is its motor or engine, which administers information to its joints, or links. These links are connected with, and move, different parts of the robot. Industrial robots use three different types of drives, including electric, hydraulic and pneumatic. Electrically powered drives are efficient and fast, but not cost effective. Hydraulic systems are comparatively affordable, but fall short in terms of efficiency and speed. Pneumatic drive systems are typically used to control smaller robots.

8)…… are special devices that provide information to a robot about its surroundings. They receive external 9)…… and send it to the controller, which 10)…… it accordingly. They are typically used in factories where multiple robots work close to each other to prevent them from bumping into one other.

http://www.ehow.com/list_7210160_parts-industrial-robot.html

 

B) Match the industrial robot’s defining parameters with their description:

  Defining parameters   Description
1. Number of axes A It is usually the same as the number of axes.
2. Degrees of freedom B The actual arrangement of rigid members and joints in the robot, which determines the robot's possible motions.
3. Working envelope C How closely a robot can reach a commanded position.
4. Kinematics D Some robots use electric motors, others use hydraulic actuators.
5. Carrying capacity or payload E Two axes are required to reach any point in a plane; three axes are required to reach any point in space. To fully control the orientation of the end of the arm (i.e. the wrist) three more axes (yaw, pitch, and roll) are required. Some designs (e.g. the SCARA robot) trade limitations in motion possibilities for cost, speed, and accuracy.
6. Speed F This is a measure of the amount in angle or distance that a robot axis will move when a force is applied to it.
7. Acceleration G The region of space a robot can reach.
8. Accuracy H How well the robot will return to a programmed position.
9. Repeatability I How much weight a robot can lift.
10. Power source J How quickly an axis can accelerate. Since this is a limiting factor a robot may not be able to reach its specified maximum speed for movements over a short distance or a complex path requiring frequent changes of direction.
11. Compliance K How fast the robot can position the end of its arm. This may be defined in terms of the angular or linear speed of each axis or as a compound speed i.e. the speed of the end of the arm when all axes are moving.

http://en.academic.ru/dic.nsf/enwiki/101933

 








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