When it comes to classifications of , the can be found as a major classification from all the existing types of . Ever since started springing up, the engineers had been looking for ways that works could be done safer to reduce the risks that workers are always exposed to in their everyday industrial activities. Before now, lots of industrial jobs do render serious injury to humans arising from accidents or after job effect.
In the case of metallurgical industries, handling of molten metals and their transferring means into the molds had never been easy. The operations in such industry had been referred to as the most tedious because of the hazard and accident records coming from them. However, the introduction of robotic engineering has not only helped the metallurgical industries immensely, it has also brought revolutions to most industrial manufacturing sectors.
The robotic engineering is the field of engineering that brought the idea of industrial robots into reality through the making of robots that are programmable and capable of on two or more axes. Initial had limitations in terms of the axes of their , their angles of operations were limited included their total flexibility found in the .
now have complex functionalities that made their use for specific jobs possible. Instead of having that only lift and place objects while in stationery position, the modern used for industrial operations can weld a full length of 5mm thick steel plate in a factory, the interior and exterior of the factory , carry out assembling of parts, and packaging and labelling operations, etc. based on the improved flexibility and its axes of rotations, can carry out the following operations effectively for the manufacturing and construction :
can now as a quality control officers using a pre-determined values used for identification quality to accept or reject a particular product that is meant to through its interface for approval.
Operations of various had been made easier using the industrial . The idea has made almost all the to operate autonomously. Such that the functions obtainable from modern robotics appear to be unlimited.
had been extended to the level of carrying full tasks peculiar to human operations, such are; conveying of tools and products, security control system in the , , and manual , etc.
As it stands currently, there is no limit to what could do when it comes to the whole industrial activities.
The use of with varying or similar degrees of configurations had been the major feature of . The always exhibit varying degrees of autonomy based on the operations the were meant to carry out, few degree of configurations mean less tedious or less task job for the . While complex degree of configuration could mean multiple task and tedious job ability for the .
As a programmable , the programs of will always consider the arms degree of freedom, and other moving parts of the . Some are programmed to faithfully carry out specific operations continuously i.e. repetitive actions. Such will have programs that are accurate and the degree of freedom must perfectly suited the nature of repetitive tasks expected from the .
A properly programmed must specify the entire actions of the to determine its routines, directions, acceleration, velocity, deceleration, and distance of a series of coordinated motions.
with multiple flexibility and degrees of freedom are meant to carry out varying operations by adjusting or changing its written programs. For example, for more precise guidance, often contain sub-systems acting as their visual , linked to powerful computers or controllers.
can have numerous types when classified extensively, but based on research for this article only four seem to be the major based on functions, , degrees of freedom, and control mechanisms, etc. the following are the simplified classification of :
1. : they are special with rotary joints which can aid their in a rotary directions up to 360 degrees. At their simple design, such could have only two-jointed structures, while at complex design, they can have about 10 or more interacting joints to enable more tasks and flexibility. The joints are usually equipped with electric motor for their motions. This type of use its three revolute joints to access its . The joints are arranged in a ‘chain’ format such that one joint will support another further joint in the chain format.
With the manipulative joints associated with this type of , their path can be controlled by a coordinated motion because there is a control scheme where inputs or commands can be specified in every point along a desired path of motions. When it comes to the degrees of freedom (DOF), there are number of independent motions in which the end effector can move, define by the number of axes of motions of the manipulator.
The program of this type of can be stored in a disk, memory cards, or directly from any computer using a suitable software and meant to control the various units of flexibility independently which enables the to have high level of arms flexibilities.
2. : they are referred to as “parallel robots” consisting of three arms connected to universal joints at the base. The robots operate with the principle of parallograms when it comes to the arms design features. The principle enables the robot maintain the orientation of the end effector. They are type of industrial robots mainly used for the purpose of picking and packaging in because they can be quite in executing actions and are used mostly for similar and repetitive functions.
The parallel consist of multiple kinematic chains connecting the base with the end-effector. The robots’ is restricted to the X, Y, or Z directions with no rotation. When used for a particular operation design, the base is mounted above the workspace and all the actuators are located on it. From the base, three middle jointed arms extend and the ends of these arms are connected to a small triangular platform. Actuation of the input links will move the triangular platform along the X, Y, or Z direction.
3. : they are known as linear , the are known with their straight line rather than rotational peculiar with the . The three principal axes of the are usually at right angle to each other. The three sliding joints of the correspond to the of the up-down, in-out, and back-fourth of the wrist. They have advantage of simple mechanical arrangement and sometimes resemble gantry cranes but usually smaller in size.
4. (): they have parallel-axis joint layout, the arm is rigid in the Z-axis but flexible or movable towards the X and Y axes. Therefore, the had been found to perfectly in only the X,Y axes configurations, by virtue of the SCARA’s parallel-axis joint layout, the have advantages for many types of assembly operations such as inserting a round pin in a round hole without binding. Another feature of this type of is that their jointed two-link arm layout is similar to human arms which makes it easy for the robots’ arm to extend into confined areas and then retract or fold up out of the way.
These have more features and advantages than the few mentioned in this post, however; the highlight will enable us understand the various available currently in use. If you have a contribution or other idea regarding the topic, use the comment form to air your view.
Originally posted 2018-08-13 13:40:40.
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