With the continuous development of intelligent manufacturing in China , industrial robots and artificial intelligence technologies have been widely applied . Today, we will analyze the necessary components of the motion control + machine vision inspection system used in the application of positive motion technology in industrial robots .
Machine vision inspection is like the eyes of an industrial robot, checking the quality of production samples. Motion control is like the brain of the industrial robot, issuing commands to the actuators to perform actions . So, how is motion control + machine vision inspection system used for visual inspection and action execution in the application of forward motion technology in industrial robots ?
1. Industrial cameras are a key component of machine vision systems. Their function is to convert light signals into ordered electrical signals. Choosing the right camera is a crucial part of the machine vision component in the overall system design. The selection of an industrial camera directly determines not only the image resolution and quality but also the ease of operation of the entire system.
2. The basic function of an industrial lens is to convert light beams. In the machine vision component of the overall system design , the primary function of the lens is to image the target onto the photosensitive surface of the image sensor. The quality of the lens directly affects the overall performance of the machine vision system. Therefore, the proper selection and installation of the lens is a crucial component of machine vision system design .
3. The core of the machine vision solution design is image acquisition and processing. All the information that needs to be processed comes from images, and the quality of the images themselves is crucial to the entire vision system. Choosing a suitable industrial light source is a significant factor affecting the image quality of the machine vision system, as it determines the complexity of the algorithms used in the machine vision component, and consequently, the accuracy and stability of the machine vision inspection system. The role of the light source is to highlight the features of the target, increase the contrast between the target and the background, and overcome interference from ambient light. Therefore, the selection of the light source and the design of the lighting method are particularly important in the early evaluation and testing of the machine vision system.
4. The motion control of industrial robots mainly achieves two types of motion: point-to-point motion and continuous path motion. When the robot performs continuous path motion control, the end effector must ensure the starting point and target point pose of the motion, and also ensure that the robot can move along the desired trajectory within a certain accuracy range.
For robotic arm motion, the focus is usually on the end effector's movement, which is achieved by synthesizing the motions of each joint. Therefore, the relationship between the end effector's position and orientation and the displacements of each joint must be considered. Furthermore, arm motion involves more than just moving the end effector from one position to another; sometimes it's desirable for it to move along a specific spatial path. For this, not only the end effector's position but also its velocity and acceleration must be taken into account. From a control perspective, a robotic arm is a complex multivariable nonlinear system with coupling relationships between its joints. To achieve high-precision motion, the mutual influences must be compensated for.
The VPLC series of machine vision motion control systems from Zhengdong can perform various motion control functions, including point-to-point, linear interpolation, arbitrary spatial circular interpolation, helical interpolation, and electronic cam interpolation. It also includes a rich set of vision processing instructions, enabling visual inspection functions such as visual positioning, measurement, appearance defect detection, and character/barcode recognition. The ZDevelop software supports online monitoring and debugging, allowing for real-time parameter modification based on program performance; the modified parameters take effect immediately after being written.
ZDevelop software supports three programming languages: ZBasic, ZPlC, and ZHMI, catering to the programming language habits of different developers. The algorithm logic is simple and easy to understand, and users can quickly get started by thoroughly reading the function manual and reference development example programs provided by the positive motion technology.
In summary, we can see that the motion control + machine vision inspection system of positive motion technology only requires one VPLC series machine vision motion control all-in-one machine + industrial camera, lens and light source to form our entire motion control + machine vision inspection system. This solution not only greatly saves development costs, but also eliminates the need for two sets of software to run a single motion control + machine vision system.
Statistics show that the proportion of industrial robot applications using motion control + machine vision inspection system solutions is gradually increasing. Moreover, this solution already has many successful application cases. In most cases where industrial robots require machine vision inspection systems, choosing a motion control + machine vision system solution is a trend that will be vigorously developed in the future.
Understanding the principles behind the application of positive motion technology in motion control and machine vision systems for industrial robots is crucial for better appreciating the value of motion control and machine vision system solutions and for contributing to the development of intelligent manufacturing in China. It can be said that industrial robot motion control and machine vision inspection systems not only promote the development of industrial network automation, making industrial production more efficient, but also further ensure product quality.
