Adsorption device with gradient distribution of pores

The vacuum adsorption device, with its pore gradient distribution and independent pressure regulation design, solves the problem of warping and damage to thin, soft, and easily deformable workpieces during the adsorption process, achieving stable adsorption and protection of workpieces of different shapes.

CN224445740UActive Publication Date: 2026-07-03SHENZHEN HENGYINGXUN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521743556.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-15
Publication Date
2026-07-03
Estimated Expiration
2035-08-15

AI Technical Summary

Technical Problem

The uniform distribution of pores in existing vacuum adsorption fixtures makes it easy for thin, soft, and easily deformable workpieces to warp, shift, or be damaged during adsorption, making it difficult to adapt to the stable adsorption of workpieces of different shapes.

Method used

It adopts a pore gradient distribution design, with the pore density in the edge area being higher than that in the center area. Combined with the main compartment and sub-compartments to separate vacuum channels, it achieves independent pressure regulation and is equipped with a pressure sensor array and control module to adjust the adsorption force in real time.

Benefits of technology

It achieves stable and reliable adsorption of thin, soft, and easily deformable workpieces, avoiding warping, deformation, and damage, adapting to the precise adsorption needs of workpieces of different shapes, and improving the intelligence and precision of clamping.

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Abstract

The utility model discloses an air hole gradient distribution adsorption device which comprises a jig body, the jig body is provided with an adsorption face, a vacuum channel is arranged in the jig body, a connector communicated with the vacuum channel is arranged on the jig body, the adsorption face is provided with a plurality of air holes communicated with the vacuum channel, and the air holes are communicated with the vacuum channel. According to the adsorption device with the air holes distributed in the gradient mode, through the air holes distributed in the gradient mode, adaptive adsorption force is generated in all areas of the adsorption face, large adsorption force in the edge area restrains buckling deformation, small adsorption force in the center area avoids deformation damage, and meanwhile the shape of the adsorption face can be customized according to the shape of a workpiece so that the stable adsorption requirement can be met; the vacuum channel is divided into an independent central area and a plurality of pressure adjusting areas through the main partition part and the sub partition parts, independent air pressure adjustment is achieved in cooperation with a plurality of corresponding connectors, the adsorption force of all the areas can be accurately adjusted according to workpieces of different types, models and uneven weight distribution, and the situation that the workpieces are damaged or are not firmly adsorbed due to improper adsorption force is avoided.
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