Logistics keeps the world moving forward. Today, an increasing number of work steps involved in storing items in warehouses, retrieving these items and preparing them for dispatch are being taken over by automatic storage and retrieval machines, unmanned transport systems and intelligent logistics robots. Therefore, typical units comprising a gripper, telescopic arm, visual route-based navigation system and walking component used on a robot respectively contains a drive unit consisting of DC motors with the motion controller and planetary gearheads from ZHAOWEI.
The computer-controlled robots receive a work order and then move automatically to the target rack space in order to deposit or collect an item there. To enable this, the robots equipped with telescopic arms and grippers help to grip and move the packages or trays.
Project Name: Drive System for Grippers of Smart Logistics Robots
Project Background: Picking up items and putting them elsewhere in the proper place is a standard task that occurs in many handling and assembly processes – but not only there. The items are grasped by small robots and conveyed to the respective next step of the analytical procedure. The robots must firmly grasp an item but may not, of course, damage the workpiece. In addition to a precise, finely-tuned force, in most processes, it is especially the speed that plays a role: rapid gripping increases productivity.
Solution: Based on the development and exploration on abrasion-proof material technology, processing optimization techniques, lubrication technology, packaging technique, life testing technology and transmission mechanism, ZHAOWEI develops and manufactures micro robot joint gearboxes to improve the performance of intelligent robot including perception and identification, mechanism and transmission, control and interaction, etc. In the interaction between communication and rapid response, DC gear motor by ZHAOWEI is used to drive the robot grippers, which provides a larger power-to-weight ratio and torque-to-inertia ratio, higher starting torque, low inertia and wide & smooth speed adjustable range. In particular, the robotic end-effector (gripper) adopts the joint motor with compact size, light weight and large short-time overload capacity. Furthermore, with the angle sensor encoder of robots in a micro transmission system, ZHAOWEI helps the robots to realize the six degrees of freedom control for actions. This can be applied to the angle sensor and gear drive device of the logistic robots, which improves its joint control for flexible rotation and movement.
Project Name: Drive System for Smart Logistics Robot Arms
Project Background: The existing robot arm motors generally have problems with various specifications, small batches, poor parts versatility, high cost, and unstable quality and reliability. The range of tasks that a robot arm can complete is limited by its own mechanical structure. Using a small DC gear motor for robot to optimize the structure of the robot arm is one of the key technologies to solve this problem.
Solution: ZHAOWEI adopts a robot servo motor for robotic telescopic arms which engages with the big robot gears on the output shaft through the small robot arm gears on the input shaft, so as to reduce the speed and increase the torque to improve the dynamic performance. It has the characteristics of long service life, stability, high precision, etc., avoids the abrasion and winding problems of the robot arm control cables, and better meets the flexible transmission requirements of logistic robots in specific areas.
Microdrives from ZHAOWEI are what make intelligent robots so versatile. With an eye to the constantly growing sector of online retail, logistics and material flow are coveted playing fields for technical progress – to increase efficiency through automation and digitization. Many logistics companies have set out to intelligently combine autonomous driving and robotics. For the handling operations in the self-driving logistics robot, ZHAOWEI offers drive solutions in terms of the visual route-based navigation system and walking component of the logistic robots.
Project Background: Conceptionally, the logistics robot is a so-called perception-controlled robot, which should retrieve items during order picking and move items according to the preset routes. “Is there an item on the shelf? Is the right bar code present? Am I able to grip the box?” Thus, the robot must know where the target is located and navigate right up to the address.
Solution: ZHAOWEI’s visual route-based navigation solution uses a planetary gear motor to meet the requirements of small volume and high torque. In order to solve the accurate demand of camera autofocus motor to achieve overmute, ZHAOWEI uses the self-developed planetary gearhead design platform to distribute the transmission system in the gearbox of the autofocus motor reasonably, calculates the meshing angle optimally and checks the slip ratio and coincidence, which effectively prolong service life and improve the accuracy of the autofocus motor. Meanwhile, to keep the stability of the visual navigation in logistics robots, ZHAOWEI can adjust the motor parameters according to the multi-layer variable gear ratio mechanism with several kinds of transmission changes. With image processing, sensors and artificial intelligence enabled by such a solution, robots are able to perceive and correctly interpret its environment and use this as a basis to make decisions.
Project Background: Robots with wheeling ability are changing the logistics landscape. Wheeled robots are robots that navigate around the ground using motorized wheels to propel themselves. But nowadays, some have poor ability to avoid obstacles, while the other have poor climbing ability, which is also the reason for limiting the application of the wheeled robot in the logistics industry.
Solution: ZHAOWEI takes advantage of AGV system working principle and uses a combination of a DC motor and planetary gearheads mounted in an anti-symmetric manner. This can make the wheel pair coaxial for greater power, reduce the force point of the output shaft of the reducer to greatly shorten the wheelbase for compact structure. Besides, the two drive robot motors respectively control the left rear and right rear drive wheel, so that the robot can better complete the steering task. The ultrasonic distance measuring sensor and the infrared obstacle avoidance sensor are installed on the device so that the robot can find the front obstacles. For stronger climbing ability, ZHAOWEI provides transmission changes of stage-2, stage-3 and stage-4 with customizable parameters according to different needs. With these features, the ZHAOWEI motor has become an important technical platform for the development of these wheeling components.
No need to worry about where to buy motors for robots in the logistics field. ZHAOWEI has always been a powerful partner for those developing material handling solutions in designing, developing and manufacturing drive systems for smart logistics robots, simply and reliably improving efficiency in logistics. The precision and efficiency make ZHAOWEI motors ideal for logistics robots, which is why we have been gaining more and more popularity in the growing robotics industry.