Online coiling tin prewelding equipment for voice coil motor coil

Abstract

The invention discloses online coiling tin prewelding equipment for a voice coil motor coil. A machine table is provided with an automatic tin prewelding mechanism, an automatic tin feeding mechanism, a tin blowing mechanism and a welding head cleaning mechanism which are matched with one another; the automatic tin prewelding mechanism comprises a tin prewelding moving mechanism which drives industrial welding heads to move in place to achieve precise tin feeding at the needed positions and needed length of a copper wire; the automatic tin feeding mechanism is matched with the industrial welding heads to achieve quantitative tin feeding on the welding heads; a tin blowing pipe of the tin blowing mechanism is matched with the industrial welding heads to remove residual tin which is located on the welding heads and welds the copper wire; the welding head cleaning mechanism comprises a brush moving mechanism which drives rotatable brushes to move to be matched with the industrial welding heads to clean oxides on the welding heads. According to the online coiling tin prewelding equipment for the voice coil motor coil, the production efficiency can be improved, the number of workers can be decreased, the labor intensity can be lowered, and the production reject ratio can be decreased.

Description

Technical field: [0001] The invention relates to an on-line automatic pre-soldering and winding mechanism for a voice coil motor (VCM) coil. Background technique: [0002] There are roughly three current production processes for VCM: [0003] 1. Coiling-manual or laser peeling-manual spot welding-cleaning-appearance-vacuum packaging; the disadvantages of this process are: [0004] (1) Since the skeleton material is resistant to temperature differences, the winding end of the skeleton must be stripped of the copper wire before soldering. However, the product size is small, the stripping process is complicated, the investment cost is high, and the quality stability is poor. [0005] (2) After laser peeling, manual chromium iron spot welding is also used to realize tinning operation on the winding end of the coil. Because of the undesirable effects of tin bead spattering, flux contamination, and products that are easily deformed by high temperature during the soldering operation, a coil...

AI Technical Summary

Problems solved by technology

Due to the adverse effects of tin beads splashing, flux contamination, and high temperature deformation of the product during soldering, an additional coil cleaning and drying operation is required in the process, which may easily lead to poor reproducibility

However, the size of the product is small, and the solder part is only a few tenths of a millimeter. It is difficult to control the flatness of the tin liquid of the equipment, and the defective rate of the dip soldering process is high.

[0009] 3. Winding--lead wire dipping--artificial winding--appearance--vacuum packaging; the disadvantage of this process is that although this process can solve the problem that the product is susceptible to high temperature deformation, but because of the manual work in the process, manual Winding requires extremely high proficiency of people and requires a lot of man-hours, so it has the disadvantages of poor quality stability, difficult manual operation, and high cost

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