Market Application Background
The DELTA parallel robot features a unique triangular base and lightweight interconnected arm design, enabling flexible movement in three-dimensional space and completing various tasks through a central end effector. The end effector can be customized to specific application requirements and is widely used in scenarios such as gripping and assembly, packaging and bonding, and material sorting. Its structural design is renowned for its high speed, high precision, and high flexibility, making it highly favored in industries such as manufacturing, packaging, and assembly.
Through deep integration with machine vision, the DELTA parallel robot has further expanded its application boundaries, bringing more possibilities to automated production and becoming an important force in promoting the intelligent upgrading of industry.
Common traditional solutions on the market:
Traditional solutions typically require combining multiple independent components, including robot control cabinets, industrial computers, vision software, PLCs, and custom-developed process packages, which not only increases system complexity but also raises costs and development cycles.
Traditional multi-component integration methods often face the following problems:
1. Numerous components, complex wiring, troubleshooting difficulties, and long development cycles;
2. The data interaction efficiency between vision and motion control is not high;
3. Low degree of hardware and software integration, and low level of functional integration;
4. Multiple sets of hardware have high initial and maintenance costs.
Advantages of Positive Motion Technology Solutions:
Compared to traditional market solutions, Zheng Motion Technology's solutions have a significant advantage in system integration. Based on the VPLC series vision motion control all-in-one machine and the RTFuse vision solution, Zheng Motion Technology has created a one-stop solution, with in-depth optimization specifically for DELTA vision positioning applications.
This solution is plug-and-play, quickly meeting the bonding needs of various common auxiliary materials in the market. By simplifying the system architecture, the positive motion technology significantly improves equipment compatibility and supports rapid material switching and process configuration, greatly enhancing production efficiency and flexibility.
01. Machine vision motion control integrated machine in the visual bonding application of DELTA parallel robotic arm
1. 24DI: Connects to start/reset/stop button, air pressure detection, belt position signal, etc.
2. 12DO: Connects to camera fast shooting, feeder, vacuum breaking/suction, tri-color light buzzer, etc.;
3. EtherCAT interface: Connects to the EtherCAT bus driver to control the DELTA parallel robot arm;
4. Four-channel single-ended pulse output: for connecting to stepper/pulse drivers and encoder shafts;
5. Ethernet interface: Gigabit Ethernet port, for connecting area scan cameras that support the Gigabit protocol to achieve visual positioning and correction applications.
Motion control technology implementation
(1) Machine vision:
Visual positioning and alignment process
The upper camera visually photographs and positions the material on the conveyor belt. The DELTA parallel robot then uses this visual positioning data to retrieve a label from the feeder and align it. For products requiring higher precision, a lower camera can be added. After the feeder retrieves the material, the lower camera takes a picture to achieve secondary correction and further improve alignment accuracy.
Visual positioning function
Visual positioning primarily relies on shape matching technology, using preset features such as shape, size, and marker points to accurately match and locate target materials. The system transmits the material's world coordinates to the DELTA parallel robot in real time through coordinate system calibration, ensuring the robot can accurately grasp and align the material.
(2) Motion control:
Labeling process
The feeder peels off the labels and places them on the platform. The controller drives the DELTA parallel robotic arm to pick up the labels and move them to the lower camera for secondary correction, ensuring the label's position is accurate. The vision system provides positioning data, and the robotic arm moves along a preset path, picking up materials sequentially and placing them precisely in designated locations. Users can flexibly set motion trajectories for picking, placing, and shooting through the quick teach function, improving operational efficiency.
Exception handling and loop crawling
During the gripping process, if the current suction nozzle detects no label, the system will automatically trigger the feeder to continue dispensing labels until a label that can be gripped appears. The system will cycle through gripping, correction, and labeling operations to ensure the continuity and stability of the process.
Motion trajectory settings
Types of sports modes
DELTA Visual Alignment and Bonding Process
Core advantages of the solution
1. Easy to operate: It adopts a drag-and-drop Chinese configuration interface, which can be quickly mastered by application engineers after simple training, reducing the technical threshold.
2. Highly efficient development: We provide mature vision-based robotic labeling solutions, significantly shortening project development cycles and reducing users' time costs.
3. High integration: Supports EtherCAT bus and pulse hybrid control, integrates machine vision, motion control and IO logic control, and features integrated hardware and software design, which facilitates equipment debugging and troubleshooting.
4. Save on labor costs: A single person can complete the motion control, vision debugging, and IO logic control of the equipment, effectively addressing the problem of engineering staff turnover and reducing the company's labor costs.
5. Flexible production: The system supports the storage of vision and motion control configuration programs for multiple materials, and allows for one-click switching of process packages to flexibly handle workpieces of different sizes and shapes, reducing the frequency of hardware replacement and shortening production line downtime.
02. VPLC712 Machine Vision and Motion Control All-in-One Machine
The VPLC712 machine vision motion control all-in-one machine vision controller is an EtherCAT bus vision motion controller based on the x86 architecture. It adopts an integrated design, integrating real-time machine vision, motion control, I/O, and monitoring onto a single multi-core controller. This enables multi-task parallel real-time processing of automated equipment tasks. Through a shared memory mechanism, PC hardware resources are configured via MotionRT7 to achieve high-speed intra-core interaction, drive actuators to perform corresponding operations, and complete the overall control of the equipment.
The VPLC series machine vision motion control integrated machine is easy to install and remove, occupies little space, and can be seamlessly integrated with other control unit components (such as servo drives, sensors, encoders, control valves, etc.) to provide a complete end-to-end vision motion control solution.
For high-speed, high-precision intelligent equipment, multi-axis synchronous control and high-speed, high-precision motion control are achieved in the "PC + motion control card" mode!
02. RTFuse visual alignment and bonding application
Zhengdong Technology, based on its VPLC series vision motion control integrated machine, has launched the RTFuse vision alignment and bonding solution. This solution combines point-to-point teaching with RTFuse vision configuration functions, providing users with a one-stop, rapid-development vision alignment and bonding device, significantly shortening project development cycles. Operators only need to simply adjust the parameters of the vision and motion control function modules to quickly complete material transfer, achieving high-speed, high-precision robotic alignment and bonding to meet diverse production needs.
Camera Support
It supports most mainstream cameras on the market, and supports parallel acquisition from 4 cameras and visual aerial photography.
▌Quick Configuration
Robotic arm, axis assembly, feeder feeding, camera and matrix material handling, tool parameters.
▌Teaching Function
It provides one-click teaching functions for multiple points such as material picking, aerial photography, and material feeding paths.
▌Coordinate Calibration
Supports camera calibration, including modification of XY coordinate direction and world coordinate position correction.
▌Positioning
Automatic calibration can be completed with a single click using the pre-taught motion points.
▌System Switching
It can be switched to the RTfuse vision configuration system to implement the vision inspection process.
▌Visual Interface
The interface is user-friendly and facilitates data monitoring, displaying real-time status, return-to-home status, number of locations, and placement count.
Supported robotic arm types
4-axis module, SCARA robot, DELTA parallel robot, Cartesian coordinate robot, 6-joint robot, etc.
