What Is a Robotic Arm Used For
- Welding. Welding comes in many forms, with the most common ones used in heavy industries being spot welding and arc...
- Material Handling. This is the moving, selection, and packaging of materials and products in an assembly line. This type...
- Machine Tending. This is the loading and unloading of raw materials in readiness for manufacturing.
What are the applications of a robotic arm?
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What are the disadvantages of robotic arms?
- Can be programmed to do a lot of different tasks. Well, almost anything you can think of.
- Manipulation in any position and orientation (for robotic arms with at least 6 axis). You can make the robot do a lot of complex trajectories.
- More productivity
- (Cobots only) No need to add security fence, can work in collaboration with a person on the same area.
What are the reasons to use robotics?
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What are the basic physics involved in a robotic arm?
- From the robotic arm diagram above (the one with D1, D2, dist, etc), we can directly derive the first formula: A1 = D1 + D2
- D1 is fairly easy to calculate. In the following diagram, x, y, and dist define a right-angled triangle. ...
- D2 requires the law of cosines. ...
Welding
Welding comes in many forms, with the most common ones used in heavy industries being spot welding and arc welding. These two experience intense heat and use high voltage, which can be dangerous to human operators. But thanks to robotic welding arms, this job can be handled safely, quickly, and accurately.
Material Handling
This is the moving, selection, and packaging of materials and products in an assembly line. This type of task usually requires a very keen eye and fast hands in order to ensure that everything goes where they need to be without missing something humans can mess up.
Machine Tending
This is the loading and unloading of raw materials in readiness for manufacturing. When raw materials are transported from the source to the factory, they are packed in huge amounts that require a lot of labor to transport them to where they are supposed to be. This is a risky task that can lead to human casualties.
Painting
Painting robots are mainly used in the automotive industry, where a lot of harmful chemicals are handled. Painting a car is not an easy job as it requires several layers of different kinds of paint that will be able to withstand the elements once the car hits the road.
Pick and Place
Pick and place robots are usually placed in loading zones where products are prepared for distribution. The heavy products have to be picked from the ground to the waiting trucks as quickly as possible without any damage coming to them. This cannot be achieved by human labor.
Assembly
Automotive assembly is one of the industries that benefited the most from automation. In the past, the entire process of making cars used to be handled by people, and this took too long, had higher chances of errors, and uniformity was never guaranteed.
Machine Cutting
Dealing with metal requires mettle, and traditional methods simply don’t cut it anymore. Machine cutting is a heavy and intense task that requires a lot of time and precision.
What is a robotic arm?
Robotic Arm is a mechanism made up of linkages, interconnected through suitable joints, to achieve the required degrees of freedom and spatial movement for the intended work. The robotic manipulator can often be programmed for specific tasks.
Why is robotic arm design important?
A robotic arm’s ability to reproduce the results with minimal error increases its efficiency and speed of operation, hence ideal robotic arm design reducing the product cycle time and cost. Without human intervention, the risk of injury is also reduced greatly, making it easier to handle hazardous materials.
How are robots used?
Robots are used for a variety of applications. The end effector must be chosen to fulfill the said objective. It can either be a hand like gripper intended for pick and place operations to a specified location as shown below, or a welding interface to hold the electrodes. The manipulator can have an interface of a spray paint gun for painting purposes or a platform for simulators, making it a complex mechanism and the most crucial part of the robotic arm. The end effector can be pneumatic, electric, or hydraulic based. A servo motor usually controls the end effectors.
What is robot workspace?
The robot workspace (also known as reachable space) is defined by the collection of all points which can be reached by the end effector. There are many variables on which the workspace depends: the link lengths, rotational and translational limits, overall configuration of the mechanism, etc. The workspace of a serial robotic arm design is described in the figure below. It is a typical workspace of a 4 DoF robot arm. The degree of freedom (DoF) offered by wrist rotation is not included as the robot’s workspace does not depend on its orientation.
What are the advantages of robotic arms?
Advantages of Robotic Arm 1 Increased productivity. 2 This are capable of effective utilization of resources and raw materials. 3 This provides Flexibility at work. 4 Reduces cycle time of product manufacturing. 5 Lesser product rejection counts on account of defects. 6 Extremely high repeatability and precision, thereby minimizing errors and enhancing performance. 7 Safer to handle hazardous material as the risk of life is reduced.
What is the end effector of a robotic arm?
The part of a robotic arm design which interacts with the environment is usually the last link and it is called the end effector, or end of arm tooling (EOAT). This is where the hand would be in a human arm.
What is robotic arm control?
Robotic Arm Control. The robotic arms can have manual control or an autonomous capability. In manual mode, a robot is taught to do its task by a trained operator (programmer) who uses a portable control device (a teach pendant) to carry out the objective. This is a relatively slow procedure.
Meet The DexArm Robotic Arm
The DexArm is a robotic arm that runs on open-source software and features interchangeable modules which allow it to function as a 3D printer, a laser engraver and cutter, a pen plotter, and even an AI assistant robot.
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The Rotrics DexArm comes with three different kits at three different price points. However, the best value is the Luxury Kit. It includes the DexArm, a 3.5-inch touchscreen controller, plus the pen holder module, laser engraving module, 3D printing module, soft-gripper module, and air-picker module—all for less than a thousand dollars.
What Is A Robotic arm?
Types of Robotic Arm
- Cartesian robot / Gantry robot:The spatial movement and location is defined in the cartesian coordinate system, and its arm consists of three prismatic joints. Uses of this robot range from pick and place work, handling of machine tools, performing arc welding, sealant application, and carrying out assembly operations. Cylindrical robot:The axes of this robot are set up in the cylind…
What Is Meant by Robotic Arm Design ?
- Mechanical Design of Robotic Arm
Inspired by a human hand, the mechanical aspect of a robotic arm design constitutes of several linkages which can be thought of as to form a kinematic chain. The links are connected by joints, which provide the necessary rotational and translational capabilities to the mechanism. The par… - Degrees of Freedom
In Robotic Arm Design, the degree of freedom (DoF) of a robot is determined using the total number of freedom of the rigid body minus the number of constraint on it’s motion. These constraints of motion often come from the joints. For example, revolute and prismatic joints eac…
Robotic Arm Control
- The robotic arms can have manual control or an autonomous capability. In manual mode, a robot is taught to do its task by a trained operator (programmer) who uses a portable control device (a teach pendant) to carry out the objective. This is a relatively slow procedure. A typical robotic arm has a multi-level control setup, including a microcontroller, driver, and a computer based user int…
End-Effector Selection
- Robots are used for a variety of applications. The end effector must be chosen to fulfill the said objective. It can either be a hand like gripper intended for pick and place operations to a specified location as shown below, or a welding interface to hold the electrodes. The manipulator can have an interface of a spray paint gun for painting purposes or a platform for simulators, making it a c…
Advantages and Disadvantages of Robotic Arm
- Advantages of Robotic Arm
1. Increased productivity. 2. This are capable of effective utilization of resources and raw materials. 3. This provides Flexibility at work. 4. Reduces cycle time of product manufacturing. 5. Lesser product rejection counts on account of defects. 6. Extremely high repeatability and preci… - Disadvantages of Robotic Arm
1. Responsible for labor unemployment. 2. High facility and equipment setup costs. 3. Flexibility & functionality limited by design as compared to the human hand, which can multi-task. 4. Programming for high accuracy tasks is a challenge. 5. Extensive requirement of sensor installa…
Notable Applications of Robotic Arm
- Robotic arms affect our lives on a large scale as they play an essential role in industries ranging from food packaging to automobile manufacturing to space applications. Some noteworthy examples are listed below: In space, the International Space Station (ISS) is installed with the Canadarm and its successor Canadarm2, which are both multi DoF robotic arms. Canadarm…