A double-sided sandblasting process and conformal sandblasting fixture for the outer barrel of an MRI machine

By designing conformal sandblasting fixtures and internal support modules, the problems of precise positioning and uniformity of the sandblasting equipment for the outer barrel of the nuclear magnetic resonance machine were solved, enabling simultaneous sandblasting and online cleaning of the inner and outer surfaces, thus improving sandblasting efficiency.

CN122299528APending Publication Date: 2026-06-30SUZHOU DAWNWATCH MEDICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU DAWNWATCH MEDICAL EQUIP CO LTD
Filing Date
2026-05-07
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The sandblasting equipment for the outer barrel of the nuclear magnetic resonance machine lacks high-precision dynamic tracking capability, making it impossible to accurately position the outer barrels of different specifications, which affects the sandblasting efficiency and uniformity, and the nozzle cannot simultaneously sandblast the inner and outer surfaces.

Method used

The conformal sandblasting fixture, with its internal support module and rotary drive component, enables the rotation of the outer barrel and multi-directional adjustment of the nozzle. Through sandblasting of the inner and outer walls and coating of the shielding layer, it combines negative pressure adsorption and high-pressure air blowing for online cleaning.

Benefits of technology

It improves the uniformity and efficiency of sandblasting, solves the problem of precise positioning of outer barrels of different specifications, and realizes simultaneous sandblasting and online cleaning of inner and outer surfaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a double-sided sandblasting process for the outer casing of an MRI machine, belonging to the field of sandblasting technology. The process includes the following steps: S1: Clamping the outer casing; installing the outer casing into a conformal sandblasting fixture, driving several internal support modules to conform to the inner wall of the outer casing; S2: Sandblasting the outer surface; S3: Sandblasting the inner surface; the nozzle sprays a second abrasive to sandblast the inner surface of the outer casing, the particle size of the second abrasive being smaller than that of the first abrasive; S4: In-situ shielding layer coating; through the spraying interface integrated in the conformal sandblasting fixture, a shielding coating is sequentially applied to the inner and outer surfaces of the sandblasted outer casing. This invention solves the problems of current MRI machine outer casings requiring sandblasting both inside and out, where sandblasting equipment often relies on mechanical positioning devices or manual visual calibration, lacking high-precision dynamic tracking capabilities, and during the sandblasting process, it is impossible to accurately position sandblasting outer casings of different specifications, and the nozzles cannot simultaneously sandblast the MRI machine outer casing, affecting sandblasting efficiency and uniformity.
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