Anti-cracking tooling for welding torsion spring metal terminal

By introducing contour positioning and buffer structures into the welding fixture for torsion spring metal terminals, the problems of vibration cracking and inaccurate positioning of torsion spring metal terminals during ultrasonic welding were solved, achieving a higher welding success rate and accuracy.

CN224615373UActive Publication Date: 2026-08-11WUXI RUOXIANG INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202521922043.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-08-11
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

Existing welding fixtures for torsion spring metal terminals cannot effectively buffer vibration energy during ultrasonic welding, leading to cracks at the root of the torsion spring and difficulty in centering and positioning, which easily results in damage to the weld surface.

Method used

The system employs a contour positioning block, a contour block mounting plate, and a cylinder ejection block to form a buffer layer. By adjusting the contour block mounting plate forward and backward and rotating the cylinder ejection block, the reliability of the terminal position is ensured. The system also utilizes a terminal bushing and a plug to form a buffer structure, reducing the impact of vibration.

Benefits of technology

It effectively reduces the vibration and impact on the torsion spring metal terminals during the welding process, prevents cracking, and improves welding accuracy and success rate.

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Abstract

This utility model relates to the field of ultrasonic welding equipment and discloses a welding anti-cracking fixture for torsion spring metal terminals, comprising: a torsion spring metal terminal, a contour block mounting plate, and a cylinder ejection block. A contour positioning block is fixedly connected to the upper end of the torsion spring metal terminal. The contour block mounting plate is installed on the upper side of the contour positioning block, and a contour block mounting support is installed on the lower side of the contour block mounting plate. The cylinder ejection block is located on the right side of the contour block mounting plate, and an ejection cylinder is installed at the right end of the cylinder ejection block. A terminal plug is provided on the left side of the cylinder ejection block, and a terminal bushing is installed on the outer side of the terminal plug. A bushing mounting for assisting in the centering and placement of the terminal is provided on the upper side of the cylinder ejection block. This welding anti-cracking fixture for torsion spring metal terminals can form a permanent vibration buffer layer during ultrasonic welding, reducing vibration at the terminal tail during ultrasonic welding.
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