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Calibration Methods for Horn Position Deviation of Ultrasonic Metal Welders
Jul 17,2026
Precise horn positioning is critical to guarantee welding quality of new energy harnesses and other workpieces. During mass production, horn offset leads to displaced, misaligned nuggets, defective products, accelerated equipment loss, lower productivity and hidden safety hazards.
I Judgment & Root Causes of Horn Position Deviation
1 Defect Manifestations
Displaced, staggered solder nuggets, batch offset accompanied by workpiece damage and cold joints.
2 Main Causes
1.Misalignment during equipment installation;
2.Abnormal horn condition;
3.Inaccurate fixture positioning;
4.Improper welding parameter setting;
5.Non-standard daily operation & maintenance.
3 Rapid Detection Means
Visual inspection, trial welding verification and machine precision test to judge offset type and severity quickly.
II Core Calibration Procedures
1.Basic machine calibration: Power off, fasten horn connections, calibrate horn coaxiality and worktable levelness.
2.Fixture calibration: Clean clamps, calibrate positioning blocks, verify workpiece positioning and optimize clamping force.
3.Fine-tune horn: Manually adjust horn position to eliminate offset and lock calibrated values.
4.Parameter optimization: Modify welding pressure, amplitude, welding speed and holding time to match calibrated status.
5.Closed-loop verification: Perform trial welding and batch testing; establish long-term prevention mechanism to avoid recurring deviation.
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Wuxi HAIFEI Intelligent Equipment Co., Ltd.
Wuxi HAIFEI Welding Equipment Co., Ltd.
Add: 28 Shuiyun Road, Yuecheng, Jiangyin, Jiangsu Province, China. (Postal Code: 214404)
Mobile: +86 18915302352
Email: wushijie@jshaifei.com