AOI-Enabled Conformal Coating Machine （HTF-VCA450）

Introduction

• Control Section:
  Equipped with a high-configuration industrial computer and a reinforced high-performance motion control card. The display adopts a 21-inch LCD monitor, with mouse and keyboard for operation. The system runs on Windows 10. The software control system is independently developed, featuring simple programming, easy operation, and support for polygon programming mode, allowing quick definition of irregular coating areas. It supports one-click search for coating boundaries and glue inspection at any position on the entire board. The program is stable and supports multi-machine copying.
• Machine Frame:
  The base frame is welded from reinforced 60×60 mm square tubes with stress-relieved treatment, delivering excellent rigidity, hardness, and minimal thermal deformation. The working platform is precision-milled with a gantry milling machine to ensure the motion system operates on a stable and accurate platform. The surfaces are finished with electrostatic powder coating for a refined appearance.
• Working Section:
  The X, Y, and Z three-axis motion platform is composed of linear guides, ball screws, and servo motors, providing stable and high-precision motion control.
  The Z-axis optical inspection system uses a professional color industrial camera and a telecentric industrial lens, effectively reducing shadowing caused by high components on PCB. It can accurately identify various coating defects on PCB boards after conformal coating, including over-coating, under-coating, splashing, bubbles, glue width issues, etc., maximizing the yield rate of the coating and curing production line.
• Conveyor Section:
  The conveyor is driven by a stepper motor. The self-developed aluminum conveyor rail is convenient and visually appealing. The transmission method is chain-drive, and conveyor width is automatically adjusted by a stepper motor with higher precision. Adjustment range: 50–450 mm.
  The chain adopts 35B stainless steel chain with extended pins and baffles.
• Clamping Device:
  Upon PCB entry, sensors trigger automatic stop, clamping, and top-holding to keep the PCB firmly fixed, preventing shifting during coating and ensuring accurate positioning.
• Lighting Inspection:
  Equipped with LED lighting an LED UV light source. Operators can switch between them to inspect conformal-coating coverage efficiently.
• Information Traceability:
  Reserved MES interface. Support customer MES communication protocols and supports automatic statistical SPC analysis and SPC alarms.

Feature Summary

• Adopt industrial computer + motion control card, Windows 10 64-bit operating system, with audible/visual fault alarm and menu display.
• Programming uses manual teaching mode, simple and fast operation.
• Driven by servo motor + ball screw.
• X, Y, Z three-axis motion (standard configuration).
• Operating accuracy of 0.02 mm, capable of automatic error compensation.
• Special aluminum alloy rail and stainless-steel conveyor chain, single-section guide rail.
• Integrated steel motion platform ensures stable operation.
• Equipped with SMEMA or IPC Hermes 9852 interface for communication with other equipment.