Today to introduce to you: injection molding machine manipulator performance and development direction analysis?
[2023-11-11]

Today to introduce to you: injection molding machine manipulator performance and development direction analysis? 



          The end effector of the injection molding manipulator is installed at the end of the robot arm and is directly in contact with the injection molding part. It is a device to realize the grasping and other additional functions required by the injection molding part, and is a key executive part of the injection molding manipulator to realize the grasping of the injection molding part. Compared with the end effectors of industrial manipulators, the end effectors of injection molding manipulators have higher intelligence and special requirements due to the irregularity, variability and complexity of their operating objects and environments. The end-effector structure used for workpiece grasping generally includes cylinder type, needle type, pure suction cup type, multi-finger type, etc., considering the reliability, most of them actually use multi-finger type. The study of this type of end-effector belongs to the research scope of multi-fingered dexterous hand in robotics. During the injection molding process of multi-fingered hand, workpieces adapting to different geometric shapes and characteristics need to be considered. Therefore, when designing the multi-fingered end-effector of injection molding manipulator, factors such as grasping compression mechanical characteristics and modes of workpieces and injection molding environment need to be considered. 

 The ideal injection molding manipulator end actuator should have the following characteristics:

 (1) Suitable for a variety of workpieces, strong versatility. 

 (2) Simple structure, low cost, easy to control. 

 (3) Can reliably grasp the workpiece, to achieve lossless grasp.

 In terms of versatility, the end effector of the current common injection molding manipulator is specially designed for a certain injection molding part, and can only achieve the grasp of the workpiece. This affects the production efficiency of the injection molding manipulator and restricts the promotion and application of the injection molding manipulator. To solve this problem, it is necessary to improve the versatility and flexibility of the end-effector and increase the scope of application, and it is necessary to innovate the structural design of the end-effector and meet the requirements. If it is necessary to improve the flexibility and versatility of grasping, it is necessary to increase the number of fingers and joints in the end-effector, which is closely related to the grasping effect. Increasing the number of degrees of freedom of the end-effector can make the grasping action more flexible and adaptable. If the full drive mechanism is used, it will bring complex structure, increase the cost of production and maintenance, and it will be more difficult to control, reduce the reliability of grasping, and increase energy consumption. Although the research of injection molding manipulator at home and abroad has achieved good results in recent years, most designs still cannot coordinate the versatility of the end actuator, which will cause the contradiction between flexibility and cost, which is also the future research and development direction of the end actuator of injection molding manipulator.    

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