Solving the problem of "high precision assembly" - 4-axis manipulator + positioning fixture realizes zero error in the core components of horn automation assembly.
Client Background
A high-end automotive electronics enterprises to produce 8 inch high-power car speakers, the core pain point for the "voice coil and the magnetic circuit concentricity is insufficient": manual assembly of the voice coil offset amount of more than 0.1mm, resulting in abnormal frequency response curve of the speakers, the factory inspection pass rate of only 92%; and manual soldering temperature control is not stable, the voice coil lead false weld rate of 3%, after-sales complaint rate remains high.

JiuJu Automation-Speaker Automation Solutions
Positioning fixture optimization: Tapered ejector pin positioning design, built-in strong magnetic adsorption module, to ensure that the concentricity of the magnetic circuit components assembly ≤ 0.03mm, to fully match the precision requirements of the speaker dispensing, assembly;
Dispensing robot upgrade: choose two-component AB dispensing robot, four-axis adjusting mechanism supports 360° rotational dispensing, the bottom of the rotating structure to prevent the glue from drying out, the glue volume control accuracy up to 0.01g, to avoid uneven glue volume caused by the component offset;
Automatic Soldering Module: Integrated temperature closed-loop control soldering machine (temperature control accuracy ±2℃) and Scara 4-axis robot, realizing "automatic extraction of positioning gauge → automatic soldering → automatic wire cutting", replacing manual soldering and eliminating the problem of false soldering.

Improved precision: the concentricity of voice coil and magnetic circuit is stabilized within 0.03mm, and the frequency response curve pass rate is improved to 99.2%;
Welding Quality: False soldering rate decreased from 3% to 0.2%, after-sales complaint rate decreased by 85%;
Detection efficiency: with the automatic detection module, the single speaker detection time is shortened from 15 seconds to 5 seconds, increasing the detection efficiency by 200%.

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