A sandblasting chamfering fixture assembly and apparatus

By using a sandblasting and chamfering fixture assembly and an adjustable nozzle device, the problem of uncontrolled edges after silicon wafer cutting was solved, achieving automated positioning and precise chamfering, thus improving chip production efficiency.

CN224347662UActive Publication Date: 2026-06-12RUNAU ELECTRONICS YANGZHOU MFG
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Utility models(China)
Current Assignee / Owner
RUNAU ELECTRONICS YANGZHOU MFG
Filing Date
2025-04-24
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In existing technologies, uncontrolled edge chipping and stress after silicon wafer cutting can damage the chip. Manual grinding or beveling by a beveling machine is inefficient and relies on human adjustment, making it difficult to efficiently complete the chip's angular shaping.

Method used

The system employs a sandblasting and chamfering fixture assembly, connecting the drive shaft and base via a transition bushing. It utilizes a tapered shaft and tapered shaft hole to transmit driving force, and the top edge of the tray quickly positions the chip. Combined with negative pressure adsorption and an adjustable nozzle device, it achieves automated positioning and precise chamfering.

Benefits of technology

It improves the efficiency of chip corner shaping, reduces manual adjustment time, enables rapid chip positioning and precise chamfering on the tray, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to technical field, concretely relates to a kind of sandblasting chamfer clamping assembly and device.It includes: tray, pedestal and transition shaft sleeve, tray top forms supporting surface, and the convex edge that setting is surrounded supporting surface is formed in tray top edge;Pedestal is set in tray bottom, and shaft hole is opened in the bottom of pedestal inward;Transition shaft sleeve is drivingly connected on the drive shaft for driving tray rotation, and shaft rod that transition shaft sleeve is provided with is matched in the shaft hole in it.The utility model is used to solve the problem of low chip positive angle modeling efficiency.Through transition shaft sleeve connection drive shaft and pedestal, through the shaft rod on transition shaft sleeve and the shaft hole in the cooperation in pedestal, the driving force of drive shaft is transmitted to the tray connected with pedestal, a circle of convex edge that setting is surrounded supporting surface is set in tray top, chip is positioned on supporting surface using convex edge quickly, avoid repeated adjustment chip position on supporting surface, improve efficiency.
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