High-efficiency energy-saving bernoulli chuck

By combining the design of the flow guide hole and the semi-conical nozzle, the airflow path of the Bernoulli suction cup is optimized, which solves the problems of airflow energy loss and insufficient adsorption stability, and achieves a highly efficient and energy-saving workpiece handling effect.

CN122143097APending Publication Date: 2026-06-05NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Filing Date
2026-02-02
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing Bernoulli suction cups suffer from severe airflow energy loss, high air consumption, low energy utilization, and insufficient adsorption stability, especially when handling large or ultra-thin workpieces, which are prone to falling off.

Method used

It adopts a flow guide hole structure and a semi-conical nozzle design. By combining the flow guide skirt and flow guide hole, the airflow path is optimized, eddy current loss is reduced, and negative pressure stability is improved. The gradually expanding flow channel design of the nozzle reduces the unit air consumption and improves energy utilization and adsorption stability.

Benefits of technology

Under the same conditions, it reduces gas consumption, improves energy efficiency, and significantly reduces the vibration amplitude of the suction cup, ensuring stable workpiece picking and safe handling.

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Abstract

The present application relates to a kind of high-efficiency energy-saving bernoulli chuck, belong to non-contact vacuum adsorption technical field, chuck body is sealedly connected by upper end cap and lower end cap, upper end cap is equipped with the air hole for accessing air source, still have the skirt structure of guiding flow that restricts and guides airflow;Lower end cap is equipped with semicircular conical nozzle and flow guide hole, nozzle is equidistantly distributed along lower end cap, flow guide hole is set corresponding nozzle, for guiding airflow to reduce eddy current loss;By adding flow guide hole structure and semicircular conical nozzle on chuck body, improve adsorption energy efficiency and stability.The present application is optimized to guide airflow trajectory by structure optimization, performance is significantly improved compared with traditional bernoulli chuck, the gas consumption required for generating unit suction force is smaller, amplitude in working process is also greatly reduced, it is suitable for non-contact handling of photovoltaic silicon wafer, circuit board and other precision fragile workpieces, with the outstanding characteristics of high efficiency, energy saving, adsorption stability.
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