Robot is a very complex system, there are many planning challenges in mechatronics, functionality and electrical, when planning the building blocks of the robot system, it is necessary to understand the needs of these aspects and select appropriate planning ideas.
Comparison of different manipulator plans
We all know that the manipulator is the heart of the robot, which contains the motion manipulator, internal and external communication systems, and any potential power levels. A few more words about the potential power stage, the concept refers to the fact that if the robot wants to move a heavy load, it needs to apply a sufficient force on the motor in order to do so. This force is generated by electrical energy and supplied to the motor from the power stage, and this power affects whether the robot belongs to a high-voltage system or a low-voltage system.
There are two ways of thinking about the planning of the controller, centralized and decentralized. Most of the electronic modules of the robot (drive power module, servo drive module, communication module, IO module) are integrated in the controller, and most robot manufacturers will select this plan and package it to downstream manufacturers.
The loose manipulator planning is to move some modules in the centralized controller out to the end operation system of the robot, generally moving out the servo drive module, so that the end of the actuator can support more dimensions, and the sensitivity will be higher in the selection of cables. The trouble with the planning of loose controllers is that the operating environment of the electronic equipment related to the servo drive is completely different from that of a centralized system, and it is common to redevelop some of the systems.
Safe and compact servo drive planning
Industry 4.0 introduces new principles and system requirements for servo drives, so it is important for robot planners to select the right solution for their current and future servo drive needs. Today's robot servo drive power stage module planning is compact, efficient, and fully maintained.
IEC 61800-5-2, one of the functional safety standards for robots, now defines a safety function called Safe Torque Off (STO) so that the system can safely stop the motor and avoid accidental starting. Devices such as industrial robots and industrial mobile robots are generally DC feed power levels with a typical power supply voltage of 48V to 60V, which has strong constraints on the size of the system hardware. The MCU or other processor generates PWM, and the three-phase power stage gate driver controls the power switch, and when an STO command is received from an external device, the pulse suppression channel is activated to disconnect the power drive from the gate driver to complete the safety function.
On the other hand, since power switching is involved, it is also completely feasible to use SiC and GaN to advance the motor control performance, which can further advance the power density and power of the robot. This cliché topic will not be repeated in robot planning.
Low latency instant messaging
Robots with a higher number of axes have higher requirements for network transmission, requiring the use of real-time communication interfaces such as fast serial interfaces or Ethernet for accurate and safe movement, as well as instant communication between all robot systems. It is necessary for the host processor to be able to support multiple protocols, such as EtherCAT, PROFINET, and EtherNet/IP, which can not only save costs, reduce board space, and reduce development effort, but also minimize the delay associated with communication between external components and the host.
On the other hand, the bandwidth and postponement of the PHY can also greatly affect the synergy of the robot throughout the movement. Minimizing the delay on the physical layer device will greatly reduce the time it takes for the controller to collect and update data on the connected device, greatly improving the network update time. As long as the bandwidth of the PHY is satisfied, reducing its delay is one way to improve the stability of the synchronization of the multi-axis system.
Precise sensing planning
Robot-related sensing covers a wide range of scales, from internal voltage, current, motor speed, and temperature sensing to external torque sensing, infrared sensing, 3D lidar sensing, visual sensing, IMU, etc.
In terms of internal sensing, almost all sensor devices used in robots are temperature sensitive components and set up thermal compensation, which greatly improves the stability of internal sensing and eliminates the danger of heat generation and power consumption of motors under heavy loads. In terms of external sensing, along with the advancement of robot skills, the convergence of sensor skills is also advancing, and the combination of different sensing skills can be used to achieve the best effect when deploying robot systems in changing environments.
|
More on that
|
OTC Odichi welding robot problem solving
1. The weld bead and welding trajectory cannot be corrected
First of all, in teach-in mode, the empty walk procedure ensures that the welding orientation is correct. Secondly, consider that there is a problem when soldering*** is searching. At this time, it is necessary to consider the way the welding robot finds the weld bead (arc or laser) to set it.
|
|
Encoder Failure Phenomenon - OTC Odichi
1. Encoder own problem: It refers to the problem of the encoder's own components, resulting in its inability to generate and output correct waveforms. In this case, the encoder needs to be replaced or the internal equipment repaired.
2. Encoder connection cable problem: the probability of this problem is the highest, repair ...
|
|
Graphic tutorial for the installation of OTC welding robot relay device plus I/O board
The installation method of the I/O board of the OTC welding robot relay device and the connection method of the general I/O wire are taken as an example of the OTCFD series robot. As we all know, the relay unit and the I/O board can be used together, and one control unit can connect more than two boards.
If you buy an OTC welding machine at the same time ...
|
|
Advantages of OTC welding robots:
1. 3 years warranty in the industry (body, control box, teaching box, operation box, control cable)
2. Full Chinese operation interface, simple and easy to understand, together can support 6 language selection;
3. The working radius is long, and the working radius of the standard welding robot can reach 1.4 meters or 2 meters (not included).
|
|
Precautions when OTC welding robot welding brass and aluminum
When the OTC welding robot solders copper, first check whether it is a DC welding machine, because the copper welding is as much as possible with a DC argon arc welding machine.
When welding copper, use phosphor copper electrode as filler, first use a welding gun to copy the workpiece, and then participate in the welding rod when it is melted, this is because the phosphor copper electrode ...
|
|
OTC robots are mainly used in the field
Nowadays, tasks that are too dirty, too tiring, too risky, too precise, too heavy, or too repetitive and boring for humans are often done by robots. Many industrial robots are used in the production line of the factory engaged in the manufacturing industry, and other application areas include: injection molding industry, construction industry, stone ...
|
|
Introduction to Four-Axis/SCARA Robot - OTC Odichi
Four-axis robotics means that the arms of a four-axis robot can move freely on geometric planes. The "Articulation Manipulator" is optional, i.e. traction freedom in the X, Y, and Z directions, and rotation freedom in the Z direction.
Delta Parallel Robot
...
|
|
The orientation of the Audi Robot Sequence board
The robot HOME point is the starting point of the robot, and it is generally the end.
In the window, click "robotkr210r2700_extra", and then under the "Commands" menu in the menu, click the command button RobotJog to guide the manual operation panel to open and move the robot to the appropriate ...
|
|
Communication between welding robots and welding machines – OTC Odihi
Communication between the welding robot and the welding machine:
1. Analog communication
2. Digital Communications
Analog communication, generally directly connect the analog interface of the welding machine with the analog module of the robot (but also according to the requirements of the welding machine manufacturer, some welding machine analog communication needs to be added...
|
|
OTC robot repair to find the cause of the failure
1. According to the problem situation, that is, the alarm code to find the reason
Usually the teach pendant is also called a programmer (the prompt on the teaching box) to roughly determine where the problem occurs. For example, we see the alarm A5032 on the teach pendant, indicating that the encoder is faulty. So according to our ...
|
|
OTC robot contacts need to be replaced
Contacts are one of the items that often replace welding materials. During this time, the contact fixes the direction of the wire, and since the instantaneous current that moves when the arc is closed after welding is too simple to melt the contact outlet, it must have a role. The wire and contacts have been welded together, so that the welding can no longer be performed ...
|
|
The type of control of the robot - OTC robot
1. The type of robot control can be divided into open-loop control and closed-loop control according to whether there is a reaction or not, during which open-loop control is generally considered to be more accurate, but the requirements are more chaotic. Generally speaking, if we want to achieve open-loop accurate manipulation, we need to know the accurate model of the controlled object ...
|
|
The OTC robot is printed with the word DAIHEN on it
With the acquisition of more and more users of OTC robots, the popularity is growing. At present, more and more factory users have begun to pay attention to OTC robot products, and everyone may have a simple or in-depth understanding of OTC robot products from the Internet or related exhibitions.
...
|
|
Precautions for the safety production of OTC welding robots
One of the great benefits of welding robots is that they can replace humans in dangerous or harmful environments, preventing injury. Don't think that this is a peace of mind, because at the same time there is another potential risk, which is the occurrence of robot injury accidents. To this end, ...
|
|
The robot vision system consists of a part - OTC Odihi
The robot vision system is generally composed of optical systems (light sources, lenses, industrial cameras), picture acquisition units, picture processing units, actuators and human-machine interfaces and other modules.
|
|
Advantages of OTC Odichi welding robot
1. 3 years warranty (body, control box, teaching box, operation box, control cable);
2. Full Chinese operation interface, simple and easy to understand, and can support 6 language selection;
3. The operating radius is long, and the operating radius of the standard welding robot can reach 1.4 meters or 2 meters (excluding the welding gun).
|
|
Classification of the coordinate form of the industrial robot manipulator - OTC Odichi
1) Cartesian coordinate industrial robots
Its moving part is composed of three mutually perpendicular straight line movements (i.e., PPP), and its working space is rectangular. Its movement interval in each axis can be read directly on each coordinate axis, which is intuitive and easy to program azimuth and attitude ...
|
|
OTC Welding Robot "Three Stability"
1. Stable center of gravity
Welding is like practicing martial arts, the first thing to do is that the chassis should be stable, that is, the "horse step" should be stable, and the center of gravity cannot be unstable, and it is difficult to weld a good weld when the welding is shaking.
2. The welding torch should be stable
Trembling words ...
|
|
The working principle of the OTC ODC robot servo motor
Servo motors primarily rely on pulses for positioning. When a servo motor receives one pulse, it can be said that the displacement is achieved by rotating the angle corresponding to one pulse. Because the servo motor itself has the function of sending pulses, when the servo motor rotates its own angle, it will send pulses.
|
|
Application environment and adaptability requirements of welding robots - Odichi
The welding robot is different from the general industrial robot in the particularity of the use environment, and the particularity of the use environment is different from the general general industrial robot.
|
|
Contact
working hours
