Product Introduction
Easson EV series Video Measuring Machines has a high cost effective, auto zoom and auto focus as standard configures in this series..
Vision Measuring Machine (VMM) operates on the principle of optical imaging combined with precise dimensional analysis, using sophisticated hardware and software components to measure the geometry of objects with high accuracy. Here's a breakdown of the key steps and components involved in the working principle of a VMM:
1.
Image Capture Camera System: Easson VMM uses a high-resolution digital Ethernat Industrial camera to capture images of the object placed on its measurement stage. Camera is typically mounted on a movable bridge(SP6050, SP5040) or a fixed point on the Z axis.
Lighting: Proper illumination is crucial for capturing clear images. VMMs employ various lighting techniques, such as coaxial, backlight, or ring light, to enhance the visibility of edges, surface details, and other critical features of the object.
2.
Stage Movement Precision Stage: The object is placed on a precision stage that can move in X, Y, and Z directions. This movement allows the machine to capture the object from multiple angles or focus on specific features.
Encoders: These are integrated into the stage to provide exact positional data to the system, ensuring that measurements can be traced and repeated with high precision. Easson high precision absolute linear encoder resolution up to 0.01 micron
3.
Image Processing Software Analysis: The captured images are processed using specialized software. Easson 2D software applies algorithms for edge detection, pattern recognition, and feature extraction to discern the dimensions and shapes from the visual data.
Comparison and Measurement: Easson 2D software compares the observed images to predefined criteria or CAD models. It measures dimensions such as lengths, angles, and radii by analyzing the spatial relationships and features in the image.
4.
Data Output Results: VMM provides outputs in various forms, such as numerical data, graphical representations, or complete inspection reports. These outputs indicate the measurements and any deviations from the expected specifications.
Integration: Data from the VMM can be integrated into quality control systems or used for further analysis in statistical process control (SPC) software.
The non-contact nature of the VMM's measurement, combined with its ability to integrate seamlessly with digital manufacturing processes, makes it an invaluable tool in modern manufacturing environments where precision and efficiency are critical. This method of measurement not only ensures high accuracy but also significantly reduces the time and cost associated with the quality control process.
Technical Specification
| Model |
2515 |
3020 |
4030 |
| Measuring Range(mm) |
250×150×150 |
300x200x200 |
400x300x250 |
| Overall Dimension (mm) |
1000×600×1400 |
1200x720x1600 |
1200x720x1600 |
| Work Table Glass Size(mm) |
289x189x10 |
339x239x10 |
439x339x12 |
| Weight (kg) |
170 |
280 |
410 |
| Max Table Load(kg) |
20 |
20 |
20 |
| Measurement Accuracy (μm) |
1.5+L/200 |
| Repeatability(mm) |
0.002 |
| Magnification |
Optical Magnification 0.7-4.5X, Image Magnification 20-125X |
| Axis Display Resolution |
0.00001mm (0.01μm) |
| Lighting System |
Eight areas up light source with two laser positioning system |
| Operation Model |
XY Axis manual, Z Axis automatic |
| Lens |
Automatic Zoom, automatic focus optical coaxial lens |
| Vision System |
High-resolution 1/2'' CMOS global shutter camera |
Characterisitics
- High accuracy Absolute Linear Scale, with a resolution of up to 0.01 microns
- High precision closed loop auto zoom auto focus lens.
- The dedicated motion controller of Vision measuring machine using Ethernet transmission, which is efficient and stable, can solve the disadvantage of unstable USB transmission.
- High-resolution SONY CMOS sensor for global shutter image processing, make the image is clear and without smearing.
- The up light source using eight areas partitioned independent control lighting system, and the light-emitting element using low-attenuation LED for long service life.
- Independently developed multi-function measurement software, the measurement results can be output to DXF, Word, Excel, PDF and other formats.
- The column and base are made of high precision 00 grade granite structure, which is stable and reliable.
F3 high precision closed loop auto zoom lens
1. 3 million pixels high resolution lens
2. Fully closed-loop servo control eliminates gear transmission gap and greatly improves the repeatability of the machine.
3. Adopt the high precision and resolution ring shaped grating ruler specially developed and designed by Easson for full closed-loop position feedback.
4. F3 lens comes with a coaxial light source to solve the problem of insufficient illumination for deep hole measurement.
5. Fully closed-loop servo position feedback for fully automatic focusing
21 Orders volumetric Compensation
AR series Network control system included 21 items space compensation, with Ultra high speed linear encoder reading and built-in EAD (absolute scale decoder), with AS-80 high precision absolute scale, provide high accuracy and high resolution measurement.
Case Analysis
Subtle precision parts inspection, such as watch movement
Thanks to the High accuracy auto zoom lens and Camera, also powerful 2D measurement software, it can recognize the image outline easily and correctly. After measuring the parts, you can export the results in AutoCAD files, then compare with the original design diagram.
