The Design and Application of Vacuum suction cups are briefly described:
Theoretical suction F (n) = effective adsorption area (m2) * vacuum degree (kPa)
If the pressure of compressed air is 5MPa MPa, the vacuum generator can generate a vacuum degree greater than 80 kPa. Generally, 70kpa is used for calculation in Engineering.
40 in diameter, the suction cup has a theoretical suction capacity of 87.9 (N). One suction cup can suck up to 6KG of the material. In addition, the diameter of the suction cup is not equal to the valid diameter, generally, the suction cup with a diameter of 40 is calculated based on the effective diameter of 32. The theoretical suction capacity of a suction cup is 56n, which is not enough.
The security factor n = 1.3 is enough. the vacuum degree produced by the vacuum generator is greater than the 70 kPa used for calculation.
There are more and more cases of automatic operation lines such as packaging, object transmission, and manipulator accessories that use vacuum suction cups to capture objects. Flexible and elastic suction cups can easily implement the transfer functions such as the suction hold, detaching, and transmission of the workpiece, and ensure that the objects to be operated are not damaged. The suction force is maintained by a vacuum system. The vacuum production can be provided by a vacuum system consisting of a motor, a vacuum pump, and various vacuum devices, it can also be provided by the compressed air through the secondary vacuum generated by the vacuum generator. The former requires an independent vacuum system, while the latter can use the existing air compression system in the general production process. Therefore, it is very convenient and economical to use the secondary Vacuum Method in various packaging operations.
The principle of the vacuum generator is: after the compressed air passes through the shrinking nozzle, the high-speed airflow sprayed from the nozzle absorbs the static fluid around it and flows forward together, thus forming a negative pressure in the receiving chamber, induced secondary vacuum. Such a vacuum system, especially for working conditions that do not require large flow vacuum, shows its superiority. The structure and parameter design of the vacuum generator are analyzed in detail in the article "design of vacuum Generation Mechanism and main parameters of air injector, the required vacuum generator can be designed according to the required vacuum degree.
You can use a vacuum suction cup to capture objects and transmit them from any angle according to different shapes. The force of the vacuum suction cup is dynamically analyzed from two special positions: horizontal and vertical.
For more information about manipulator accessories, see www.dongguantianqi.cn/
Vacuum suction cups and haimo Jigs