Semi-Automatic CCD Target Punching Machine with Vision Positioning System for

The High‑Precision Semi‑Automatic CCD Target Punching Machine is a specialised piece of processing equipment that integrates a CCD (Charge‑Coupled Device) vision positioning system with a precision punching mechanism. Its “semi‑automatic” nature means that the operator manually loads and unloads the workpieces, while the core operations—vision capture, automatic alignment, and automatic punching—are fully controlled by the computer system.

The machine uses CCD cameras to capture high‑speed images of targets (i.e., fiducial marks such as circles, crosses, etc.) on the workpiece. The computer vision software then analyses the images to calculate the exact position and angular deviation of the targets. Subsequently, a high‑precision servo drive system moves the punch unit to the calculated position and performs the punching operation. This upgrades the traditional manual, eye‑dependent alignment to a “machine‑vision‑guided” automated precision process.

The equipment operates in an efficient closed‑loop sequence, with the following main steps:

1. Manual Loading – The operator places the PCB or FPC sheet roughly onto the worktable, within the field of view of the CCD camera. The initial placement accuracy requirement is very low.

2. Vision Capture and Image Acquisition – Once started, the CCD camera scans the workpiece to capture the pre‑defined target pattern. The image is usually magnified about 50 times on the display screen for clear observation.

3. Image Analysis and Position Calculation – The computer vision system rapidly processes the captured image to accurately identify the centre coordinates of the target. Even if the target pattern is incomplete, deformed, or poorly printed, the advanced algorithm can predict its centre, offering strong fault tolerance.

4. Automatic Alignment and Positioning – Based on the calculation results, the system controls high‑precision ball screws and servo motors to move the punching unit along the X and Y axes, precisely aligning the punch with the target position.

5. Automatic Punching – After positioning, a pneumatic or mechanical mechanism drives the punch downward to complete the hole. The entire cycle from capture to punching takes only 0.35 to 0.5 seconds.

6. Manual Unloading – After punching, the operator removes the finished workpiece, completing one working cycle.

Compared with traditional manual drilling or low‑precision punching, this machine offers significant benefits:

• High Precision – This is its most prominent advantage. Through CCD vision positioning and precision transmission systems, the punching accuracy is consistently maintained within ±0.008 mm to ±0.015 mm, eliminating the inaccuracies and instability inherent in manual alignment.

• High Efficiency – Fully automatic positioning and punching are extremely fast. A single hole takes only 0.35 to 0.5 seconds, and one machine can replace 4‑6 manual operators, greatly boosting production throughput.

• Excellent Consistency and Stability – Computer‑controlled operations eliminate human errors, ensuring that every hole in a production batch is positioned with high repeatability.

• Strong Recognition Capability – Equipped with intelligent image algorithms and multi‑colour adjustable lighting, the system reliably recognises fiducial marks on various materials, even if they are deformed, incomplete, or have low contrast.

• User‑Friendly Operation – The machine typically features a large touch‑screen and an intuitive interface, allowing operators to become proficient after only a short training period (as little as one day).

• Reduced Scrap – The high precision significantly minimises rejects caused by misalignment, thus improving the overall yield.

This equipment is widely used in industries that demand high‑precision locating holes, such as electronics, printing, and packaging. It plays a particularly critical role in PCB and FPC manufacturing. Typical processed materials include:

The High‑Precision Semi‑Automatic CCD Target Punching Machine is an indispensable piece of equipment in modern precision electronics manufacturing. Through machine vision technology, it intelligently upgrades the hole‑drilling process, delivering superior accuracy, efficiency, and reliability.