AUTO COATING & ASSEMBLY MACHINE

Project Overview

This is a fully automated thermal grease dispensing, PCB placement, and screw fastening machine designed for assembling electronic power components (appears to be industrial motor starters / circuit breakers). The machine performs three sequential processes on a rotary index table to bond PCB assemblies onto aluminum heat sinks. Process Flow (3 Steps) Step 1 — Thermal Grease Dispensing - A dispensing unit mounted above the rotary table automatically applies thermal interface material (TIM / thermal grease) onto the surface of the aluminum heat sink - The dispenser is positioned at a fixed station; the rotary table brings each heat sink into position Step 2 — PCB Placement onto Heat Sink - An Epson SCARA robot (visible in upper-left of Video 2) picks up PCB assemblies from a supply area and places them precisely onto the thermal-greased heat sink surface - The robot handles orientation and positioning to align the PCB mounting holes with the heat sink screw holes Step 3 — Screw Fastening - A torque-controlled electric screwdriver (the tall blue column unit) descends via a pneumatic/linear actuator to drive screws and fasten the PCB to the heat sink - A screw feeder system (tube-fed, visible in the frames) automatically supplies screws to the driver bit - Torque is controlled to ensure consistent clamping force without damaging components

Video Gallery