Whether you are new to Surface Mount Technology or transitioning to XAutoLab equipment, understanding the core concepts is essential for a smooth workflow. This guide breaks down the fundamental SMT terminology and provides a quick reference table for XAuto Control parameters, helping you avoid common pitfalls and get your production running efficiently.
- I. Core Terminology Definition
- π XAuto Control Full Parameter and Operation Process Quick Reference Table
- π‘ Simple Pitfall Avoidance Tips
I. Core Terminology Definition
π XAuto Control Full Parameter and Operation Process Quick Reference Table
| Category | Core Concept (π΅) | Plain Explanation (π’) | Key Operations and Parameters (π ) | β οΈ High Risk Warning (π΄) |
|---|---|---|---|---|
| 1. Basic Files | CSV Coordinate File | The machine's "treasure map". Tells the machine where each component should be placed. | π Format: Must be
|
π΄ Unit Trap: Confirm unit when exporting: Millimeter (mm) or inch. Wrong unit can cause all coordinates to shift by tens of times! |
| PCB Origin | The map's
|
π Alignment: The origin set in software must completely overlap with the origin used when drawing | π΄ Misalignment Disaster: If the drawing origin is at bottom-left corner, but software uses center, all components will be misplaced, ruining the entire board! | |
| 2. Positioning Reference | MARK Point (Reference Point) | The "bullseye" the machine's eyes see. Used to calibrate whether the board is placed correctly. | π Requirements: Round copper pad, not covered by solder mask, with empty surrounding area. Can also be via or screw hole π Action: Machine finds it first after power-on |
π΄ Blockage Failure: If MARK point is covered by solder paste, dust or component, machine will report error and stop! |
| Mechanical Origin | The machine's "home". An absolute reference point fixed inside the machine. | π Action: No operation needed. Machine automatically returns here for calibration after power-on | π΄ Do Not Touch: Never manually move or modify this parameter, or the entire machine coordinate system will be corrupted! | |
| 3. Component Settings | Package | The component's "ID card". Tells the machine how big the component is and what it looks like. | π Input: Component thickness and nozzle model used π Function: Determines which nozzle to use for pickup |
π΄ Size Error: If a large chip is entered as small resistor size, machine will use small nozzle to pick up large chip, resulting in unable to pick up or component dropped! |
| Component Thickness | How thick is the component? | π How to Get: Measure with caliper, or check datasheet | π΄ Consequence of Ignoring: If left blank, nozzle pressure depth during placement will be wrong, possibly crushing component or cold solder joint! | |
| 4. Hardware Actions | Z-Axis Height | How deep the nozzle extends downward to pick up component? | π Operation: 1. Manually move nozzle to lightly touch component surface; 2. Click software "Get Position"; 3. Confirm value is negative | π΄ Sign Pitfall: Must be negative! |
| Nozzle | The machine's "finger". Used to pick up components. | π Matching: Small components use small nozzle (N1), large components use large nozzle (N2) π Inspection: Regularly clean clogged nozzle holes |
π΄ Recognition Range: The nozzle diameter and range in the software nozzle page determine whether calibration passes. Nozzle diameter can be modified when calibration fails. | |
| 5. Vision System | Top Vision | Camera mounted on the head, looking downward. | π Usage: Find MARK points on board, see where components are in feeders | π΄ Light Interference: Ensure workshop lighting doesn't directly shine on camera lens, otherwise points won't be found! |
| Bottom Vision | Camera mounted at bottom, looking upward. | π Usage: After picking up component, take a photo from below to correct component angle and position | π΄ Contamination Effect: If bottom camera lens has dust, all components will be misplaced. Clean regularly with lint-free cloth! | |
| 6. Coordinate System | Right-Hand Coordinate System | The rule for machine to determine directions. | π Direction Memory: ? X: Right is positive (+); ? Y: Back is positive (+); ? Z: Up is positive (+); ? C: Counter-clockwise is positive (+) | |
| 7. Double-Sided Process | Top/Bottom Side | The front and back sides of the board. | π Process: 1. Complete top side task and finish placement; 2. Flip the board; 3. Switch software view to bottom side; 4. Reset origin (changes with flip) | π΄ First place the side with fewer components or lighter components, then place the side with more components or heavier components (inductors, large capacitors, etc.) |
| 8.Panelization | A method of placing multiple PCBs together | Link |
π‘ Simple Pitfall Avoidance Tips
- Z-axis must be negative!
- Origin must align, drawing must be consistent with software!
- Reset origin when flipping, bottom side can be accurate!
- MARK must be clean, blockage causes stoppage!
- I. Core Terminology Definition
- π XAuto Control Full Parameter and Operation Process Quick Reference Table
- π‘ Simple Pitfall Avoidance Tips