Official Patent Announcement: CN221454385U
According to official disclosures from the China National Intellectual Property Administration (CNIPA) on December 26, 2024, Duomi CNC has officially been granted utility model patent CN221454385U for its groundbreaking CCD scanning drilling machine. Originally filed in August 2024, this technological milestone highlights Duomi CNC's ongoing commitment to solving alignment errors, workpiece distortion, and accumulated tolerance offsets in high-precision automated manufacturing.
Traditional drilling setups often suffer from minor mechanical misalignments during multi-axis rotation, leading to tool deflection, thread stripping during tapping, and reduced overall pass rates. The patented CCD scanning drilling machine overcomes these limitations by integrating machine vision with an adjustable angle clamping system.
Technical Architecture of the Patented Drilling System
The patented utility model combines sophisticated multi-axis motion control with real-time optical feedback. The core assembly consists of the following key sub-systems:
- Optical Vision Component: High-resolution CCD (Charge-Coupled Device) camera module capable of real-time optical alignment and contour scanning.
- Multi-Axis Motion Control: Independent X-axis, Y-axis, and Z-axis moving components providing precise coordinate positioning.
- Workholding & Drive Mechanism: Integrated pneumatic chuck driven by a high-torque rotating motor mounted on a heavy-duty processing platform.
- Angle Adjustment Structure: Dual vertical, parallel mounting plates equipped with precision adjustment holes to allow custom workpiece inclination angles.
- Spindle Assembly: High-speed drilling spindle driven by a dedicated drilling motor mounted directly onto the primary support block.
+-------------------------------------------------------------------------+
| CCD SCANNING DRILLING MACHINE |
| |
| +--------------------+ +---------------------+ +----------------+ |
| | CCD Camera Unit |-->| Motion Control System|-->| Spindle Motor | |
| | (Vision Alignment) | | (X / Y / Z Axes) | | (High Precision| |
+--+--------------------+---+---------------------+---+----------------+--+
| |
| +---------------------+ +---------------------+ |
+->| Angle Adjustment |-->| Pneumatic Chuck & | |
| (Parallel Plates) | | Rotating Motor | |
+---------------------+ +---------------------+ |
+-------------------------------------------------------------------------+
Key Innovations: How Vision Positioning Prevents Drilling Errors
1. Optical Workpiece Calibration
Before the drilling spindle engages, the integrated CCD scanning component performs a rapid surface scan of the clamped workpiece. By detecting target mark coordinates, fiducials, or physical edge contours, the machine automatically compensates for physical loading variances down to ±0.005 mm.
2. Multi-Angle Workpiece Orientation
The novel angle adjustment structure utilizes twin vertical mounting plates connected via a central rotating shaft. Operators can fine-tune workpiece inclination using precision-drilled locating holes. This allows compound-angle drilling without requiring expensive specialized fixtures.
3. Prevention of Tapping & Rotary Tool Offsets
When transition work involves both drilling and secondary tapping operations, slight rotational offsets often lead to broken taps or scrapped parts. The combined pneumatic chuck and vision feedback loop lock the rotary axis tightly, preventing position drift during direction shifts and heavy axial loading.
Industry Impact and Performance Benchmarks
By uniting visual alignment with customizable physical indexing, Duomi CNC's patented design delivers measurable benefits across industrial production settings:
| Performance Metric | Traditional CNC Drilling | Patented CCD Scanning Drilling Machine | Improvement |
|---|---|---|---|
| Positioning Accuracy | ±0.03 mm - ±0.05 mm | ±0.005 mm - ±0.01 mm | >80% Precision Gain |
| Setup/Alignment Time | 3 - 5 minutes per batch | < 15 seconds (Automated) | 90% Faster Cycle Time |
| First Pass Yield (FPY) | ~94.5% | > 99.8% | Significant Scrap Reduction |
| Tool Breakage Rate | Standard | Reduced by 65% | Lower Operating Cost |
This technology is tailored for high-density hole patterns, heat exchanger tube sheets, electronic enclosure frames, and complex aerospace hardware requiring stringent adherence to ISO 2768-m manufacturing standards.
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