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The 2 axis robot, also known as the two-degree-of-freedom (2-DOF) robot, has two rotating joints. Typically, two joints connect the base of the 2 axis robot to the end effector. The structure resembles a human arm made of two segments. Moreover, the 2 axis collaborative robots have a vertical orientation that resembles the Cartesian axis. Below are some popular variants of the 2 axis robots.
Planar 2 Axis Robot
The planar 2 axis robot has its two joint axes located in a single horizontal plane. Also, the two joint axes are perpendicular to the ground. Typically, the robot arm moves in a 2D space. The motion is similar to typical 2D drawings. An example is a wrist with two joints where one segment can rotate sideways and up and down.
Polar 2 Axis Robot
The polar 2 axis robot has a pair of translational and rotational joints. Also, the robot has a central pedestal mounted on a spherical wrist. The robot arm can move within a circular area defined by its radius. Polar robots are suitable for assembly operations where the end effector needs to pick and place items around its base.
Cylindrical 2 Axis Robot
The cylindrical 2 axis robot consists of a prismatic joint and a revolving joint. It has a fixed base that resembles a cylinder. The robot arm can move linearly along the cylindrical 'walls.' Moreover, it can rotate about its base to move within a cylindrical space. These robots are suitable for material handling tasks, dispensing, and assembly in confined spaces.
Flexi 2 Axis Robot
Flexi 2 robots have two revolving joints with a flexible joint in between. The flexible joint allows for a more natural motion that resembles human movement. Such a movement can easily navigate through tight areas. The flexibility mimics the serpentine movement of robots with more than two joint segments. Consequently, the robot is suitable for jobs that require affordability, variant handling, and dexterous maneuvering.
Detent 2 Axis Robot
The Detent 2 axis robot has two regular joints, like the link-and-joint method. Typically, the circular joints have link segments between them. The robot resembles a human limb. The model is ideal for educational and experimental reasons. It helps researchers and educators to study easily control systems, kinematics, programming, and interfacing.
The 2D coordinates of the work area vary depending on the mounting method and the robot's reach length, allowing for handling multiple workstations.
With the advancement of the design and materials, the load capacity is improved. Common small tabletop robots can handle objects weighing up to 3–5 kg, while larger floor-standing models can handle weights of tens or even hundreds of kilograms.
Speed is a crucial parameter in the performance of a 2D robotic arm. The speed of a robot is usually indicated by the movement speed of the end effector, which can range from mm/s to cm/s. High-speed 2-axis robots improve production efficiency by moving quickly between workpieces, although excessively high speeds may lead to a decline in operational stability and accuracy.
2-axis robots' precision directly affects assembly, positioning, and other operational quality. Precision is often measured in mm's or mm's and is determined by various factors, including the robot's design, control system, and drive mechanisms.
Before use, confirm whether the input voltage is consistent with the nominal voltage, check whether the power line is firm and reliable, whether the control line is normal, whether has the interference, etc., uninstall the robot, check the power supply comprehensively, and do the anti-interference treatment.
Regular cleaning can avoid the accumulation of dust and other foreign matters in the external and internal parts of the robot, thus maintaining its operating efficiency and prolonging the service life. The cleaning methods and procedures should be used according to the manufacturer’s guidelines to avoid accidental damage to the robot.
Bearings, gears, guide rails, etc. require lubrication. Lubricants can reduce friction, improve the efficiency of operation, and protect internal parts from wear and tear. However, to ensure proper lubricating and avoid over-lubrication, it is essential to use the right type and amount of lubricant.
Check whether the screws, connectors, and other parts of the robot are firm and reliable, whether the drive belt is loose, worn, or damaged, and whether there is unusual noise and vibration during operation to deal with problems in a timely manner.
Dust, humidity, temperature, etc. can have a significant impact on the performance and stability of the robot. Therefore, it is crucial to set up and operate the robot in the right environment per the environmental requirements outlined by the manufacturer.
2 axis robots are used in many different industries and applications, as mentioned below.
Material handling and packaging
Typically, 2 axis robots are applied to handle materials like stacking and sorting, or in packaging operations. In material handling tasks, the robots can quickly and accurately pick an object from one location or position and place it in another. For packaging operations, 2 axis robots can be used for tasks like sorting, packing products into boxes, or packaging them for shipment.These tasks require repetitive actions, which the robots can perform with high precision.
Assembly and manufacturing
Two-axis robots are employed for low-precision assembly operations, like screwing, riveting, or fastening, etc. They also quickly and accurately position parts. In some manufacturing operations, a costly human error can be reduced if robots perform them. As a result, the industry efficiency will be improved, and assembly lines will be simplified.
Quality inspection
2 axis robots can also be used to inspect materials or products so that business buyers can· enhance global competitiveness. With the aid of these robots, enterprises may detect faults in numerous products fast and precisely. Additionally, 2 axis robots can assist in inspecting or evaluating various components throughout the manufacturing process, ensuring that each stage satisfies the relevant quality requirements.
Medical and laboratory automation
Medical instruments and laboratory automation may involve 2 axis micro robots. They may enable automated systems for drug delivery or sample handling. The robots can improve precision in functions like pipetting, fluid manipulation, and biological sample analysis.
Cleanroom manufacturing
Manufacturing in cleanrooms calls for precise and accurate applications without contamination. As a result, depending on the requirements, low-cost 2 axis robots are often chosen. They can execute operations like assembling electronic devices, semiconductors, and optical equipment.
Many factors should be considered when selecting a 2D robot. Buyers should start by understanding the needs of their application. If they are handling lightweight objects, they could go for a small 2-axis SCARA robot. For assembly tasks that require multiple-axis flexibility, a more complex 2-axis robot might be needed. Buyers should also consider the programming requirements. Simple tasks might not need a complex robot that requires advanced programming skills. A teach pendant might be enough.
For more complicated tasks, an interface with simulation software might be necessary. Think about the communication protocols needed to integrate the robot with other devices. Choose a robot with the right communication protocols to ensure smooth integration and effective collaboration.
Consider the environmental factors. Consider the environment protective the environmental factors of the robot. Choose a protective the machine from dust, moisture, and other debris if it will be used in a harsh environment. Choose a 2-axis robot with the right payload capacity and wrist design for the gripper or end effector to be used in the application. Finally, consider the maintenance and support requirements. Choose a robot that is easy to maintain with adequate technical support.
Q1: How does a 2 axis robot work?
A1: The two-axis robots consist of two rotating joints. The two-axis robots can move in two directions that allow them to grasp and move objects.
Q2: What are the advantages of 2 axis robots?
A2: The two-axis robots are more economical and affordable to business buyers. They are easy to learn, operate and maintain. Besides, the two-axis robots are efficient in picking, placing, and assembling tasks.
Q3: What are the limitations of 2 axis robots?
A3: The two-axis robots have fewer degrees of freedom compared to robots with more axes. They are unable to perform complex tasks that require more intricate movements. Additionally, the accuracy of two-axis robots is not as high as three or more axis robots.
Q4: What are the common applications of two-axis robots?
A4: The two-axis robots are widely used in the electronic industry for assembly and soldering. They are common in food processing and packaging for sorting and packaging. The two-axis robots are also used in the automotive industry for welding and painting tasks.
