EPR-654 (PH10T) precision three-coordinate technical solution

Overview
EPR series coordinate measuring machine is a gantry mobile fully automatic coordinate measuring machine series produced by our company. It has the characteristics of powerful functions, stable performance, high precision, simple operation and convenient maintenance, especially its control system and software functions. The world's advanced level. Compared with other product series, this series has the characteristics of simple structure, strong load-bearing capacity, wide space for workpiece placement, and convenient loading and unloading.

1. Machine model specifications and main technical indicators

Second, the machine configuration

Installation acceptance:On-site installation, commissioning and acceptance are finally implemented in accordance with the "National Metrology Technical Specification of the People's Republic of China JJF1064-2000 Coordinate Measuring Machine Calibration Specification".
Training:Two persons and three days of operation training are provided for the buyer in the seller’s company for free. Or go to the buyer's site for three days of personnel operation training.
Warranty period:The measuring machine will be guaranteed for 12 months free of charge after the buyer’s acceptance test and acceptance, but no more than 14 months of the delivery date.

3. Technical and functional description
1. Host Features

1. The main unit includes the main unit of the coordinate measuring machine, the machine support, the imported precision air filter, and the original imported length measuring system.
2. The gantry movable structure and the integral worktable have the characteristics of strong load-bearing capacity, wide workpiece placement space, and convenient loading and unloading;
3. The three-axis guide rails are made of high-quality granite materials, so that the three-axis have the same temperature characteristics, so it has good temperature stability, resistance to aging deformation, good rigidity, and minimal geometric deformation;
4. The application of the non-linear spring system reduces the influence of the small error of the guide rail on the measurement accuracy, and at the same time ensures that the equipment has a higher environmental temperature adaptability and the machine has a good accuracy and stability.
5. The beam adopts a unique guide rail structure, and the triangle is the shape with the largest section perimeter in the same area. The triangular guide rail ensures the maximum guide air bearing span under the condition of minimum inertia, which greatly improves the anti-rotation accuracy of the guide rail.
6. Z-axis torsion is an important part of determining the accuracy of the measuring machine. The reliable anti-rotation structure design can obtain high accuracy even when the probe extension rod is used.
7. The vibration isolation design of the transmission system makes it possible to minimize the impact of mechanical vibration on measurement accuracy even when the machine is moving at high speed.
8. The three-axis adopts high-performance synchronous belt transmission, which can not only obtain high movement speed to improve measurement efficiency, but also minimize the transmission inertia to increase movement acceleration;
9. The Z-axis adopts an adjustable pneumatic balance device, and the balance force can be easily adjusted when different probe systems are configured, so that the Z-axis movement can reach the best state;
10. The length measurement system adopts imported high-precision reflective metal strip grating ruler and reading head, which has extremely high precision and precision stability;
11. The imported high-precision air filter configured on the host can make the compressed air reach a very high degree of cleanliness to effectively protect the air bearings and guide rails. At the same time, the automatic drainage device makes the operator more worry-free and labor-saving when using it, and avoids the cause of forgetting to drain the water. Equipment damage.
12. The complete safety protection device can lock the three-axis in time when some accidents occur, avoiding bigger accidents and protecting the safety of the machine.
13. The design of the whole machine conforms to the principle of ergonomics, simple and convenient to use, easy to maintain and maintain.

2. A set of Ucc control system (UK).
The control system adopted by our company is a CNC system specially designed and manufactured for CNC coordinate measuring machines. The control system adopts the principle of separating the control layer and the application layer, which is the high precision and accuracy of the coordinate measuring machine (CMM). Sexuality and high efficiency provide a solid foundation. The control system adopts USB interface and computer communication, no need to expand any computer communication interface, also reduces unnecessary external connections, and ensures the high reliability of the system.
The drive system is driven by a DC servo motor, and the three-axis can be driven by the motor without gap and vibration according to the speed T curve or S curve.
Configured according to the 3-axis closed-loop motion mode, 3 TTL orthogonal pulses can be input, and the dyadic vector realizes quantity control.
The probe interface circuit is compatible with multiple types of probes. Since this system is from RENISHAW, the support for RENISHAW probe system is more perfect.
The control system is safer and more reliable. It provides multiple control modes. When the shutdown problem occurs, the system can switch to the corresponding mode to stop the machine in the first time. The user does not have to worry about accidents and malfunctions of the speeding car. The function of online diagnosis.
The Ucc control system supports a variety of error detection methods, which can easily correct the accuracy of the measuring machine.
The speed is faster, the movement is stable, and the efficiency is higher. In the path planning of multi-point continuous movement, it can take a straight line or an arc path, which makes the measurement of circular workpieces more convenient.
The control system is stable and reliable, and maintenance is simple. The separation of the control layer and the application layer makes the system's problem diagnosis and resolution easier and clearer, and the phenomenon that problems on one level spread to another level will no longer exist.
The humanized design of the control box. The control box provides users with simpler and more reasonable buttons and joysticks. It not only has traditional speed control, but also provides measurement shortcut keys to make the whole measurement process easier and more convenient.

3. A set of computer systems:
3.1 One set of brand computer system:Not less than the following configuration

1. Intel dual-core 2.5 GHZ, 2 GB RAM
2. 320 GB hard drive
3. Graphics card GeForce210 256 M
4. 16x speed DVD-ROM drive
5. 19 inch widescreen LCD monitor
6. Operating system: WINDOWS XP

3.2 One inkjet printer (HP)
3.3 A set of computer tables and chairs

4. Probe system:

5. A set of Rational DMIS measurement software (United States).
Rational DMIS software is a software certified by the German Institute of Physics and Technology (PTB). It has the ability to express in multiple languages (including Chinese). It is an international measurement software that provides users with advanced technology, complete functions, and stable performance. , Simple and convenient measurement guarantee.
5.1 The Rational DMIS software is built on the Windows XP platform, which is very easy to operate.
5.2 Basic measurement functions:

• Measurement and evaluation of geometric elements: points, straight lines, planes, circles, ellipses, cylinders, cones, balls, arcs, keyways, etc. Convenient operation, the operator only needs to perform simple geometric element decomposition of the measured workpiece to distinguish how many geometric elements the measured workpiece consists of, and then the measurement can be completed quickly.
• Construction functions: intersect, divide, project, fit, tangent, parallel, perpendicular, translate, offset, mirror, extract, limit, and rotate.
• Shape error evaluation: straightness, flatness, roundness, cylindricity.
• Position error evaluation: distance, included angle, parallelism, perpendicularity, inclination, concentricity (concentricity), symmetry, position (two-dimensional and three-dimensional), circular runout, full runout.
• RationalDMIS software is convenient and simple to operate, and it perfectly supports drag-and-drop operation, which simplifies the operation process. From measurement, construction, tolerance evaluation to the output of the final report, it can be completed by simply dragging the mouse.
• Measurement and evaluation of curves and curved surfaces. Powerful curve and surface measurement function, which can perform error analysis on curved surfaces and curves through unilateral or bilateral tolerances.
• RENISHAW probe and stylus library. It is convenient to connect, configure, calibrate and use various probes and styluses of RENISHAW.
• Intelligent workpiece alignment. That is, the commonly used 3-2-1 coordinate system establishment method, with graphical prompt operation, simple and convenient operation. It supports the RPS positioning method commonly used in the automotive inspection tool industry, the best fitting method commonly used in surface measurement, and multiple coordinate system establishment methods such as multi-point fitting, three-point offset, and two-point offset.
• Multi-coordinate system, multi-probe function conversion is convenient. The software allows multiple coordinate systems to be established in a measurement project, and allows multiple probes to be used. By clicking or dragging with the mouse, the conversion between each coordinate system or each probe can be realized.

5.3 Two-way data transfer function with CAD system:

• Directly receive the mathematical model of IGES, STEP, DXF and other formats transmitted by CAD, and can display the mathematical model graphics transmitted by CAD in solid or wire frame.
• It can realize the layering and coloring of CAD digital model, and can also realize the import of original layering and color separation of CAD digital model, multiple CAD digital model import, CAD digital model mirroring, automatic recognition of theoretical elements of CAD digital model, support points Cloud data processing.
• The theoretical value can be directly read in the CAD model and compared with the measured value.
• It can directly simulate the measurement offline on the CAD digital model and compile the measurement program.
• The measurement results can be output to the CAD system in IGES format.
• It can survey and map the workpiece to be measured, and can also do reverse engineering.
• It can accurately align the CAD digital model of complex workpieces, and rebuild after measurement. And can display the CAD model from multiple views.

5.4 Graphic function

• Three-dimensional solid model display, so that the measured workpiece can be displayed intuitively. The three-dimensional graphics of the measured workpiece and the measured geometric elements can be displayed on the computer screen, and the three-dimensional graphics and size report of the workpiece can be printed out.
• The movement status of the measuring machine can be displayed. With the support of RationalDMIS software, the three-dimensional model of the coordinate measuring machine can be displayed on the computer screen in real time. In the actual measurement process, the actual measurement motion of the probe can be simulated and displayed, that is, the motion posture of the measuring machine and the probe can be simulated in real time. The position of the coordinate measuring machine can be rotated by moving the mouse to adjust the size and proportion of the viewing angle. In addition, the workpiece has a three-dimensional solid model display, which greatly facilitates the operator. When repeating the measurement of the workpiece in the future, the measurement process of the coordinate measuring machine can be understood by observing the screen.
• Graphical display output of measurement results.
• The three-dimensional geometric element icons, abundant dynamic toolbars, graphical toolbars and three-dimensional graphics display the measured geometric elements, so that the operator can operate intuitively and clearly.

5.5 Two-way transmission of measurement procedures in DMIS standard format, supporting DMIS5.0 standard.
5.6 Self-learning programming function. Convenient self-learning function can automatically compile the entire measurement process into a measurement program. The sequence of measurement is the sequence of program measurement, and the entire program can be edited and offline simulated measurement can be performed.
5.7 The intelligent online assistant can give voice and text prompts for each step of the user's operation, helping the user to master all the operations in a short time.
5.8 With power-off protection function and self-diagnosis function.
5.9 Output of measurement results

• Support traditional output reports, Excel spreadsheet output reports, graphic reports, and user-customized output reports.
• Graphic report. The line-up graphical box display can display the nominal value, actual measured value, error, and upper and lower deviations of the setting. The interface of the measured element with the measurement result value in the graphic report can be zoomed, rotated and moved on the screen to obtain views in all directions. The automatic arrangement can also be used, which greatly facilitates the operator and makes the measurement results clear at a glance.
• RationalDMIS software can process the test results of any tested workpiece and output user measurement reports.

6. Environmental requirements:

• Temperature range: 20±2℃, temperature change: <0.5℃/h <1°C /24h
• Air source pressure: 0.6MPa～0.8MPa,
• Maximum air consumption: 200L/min (0.45MPa)
• Humidity range: 30%-70%
• Power supply: 220V±5 %, 50Hz
• Maximum power: 1 KW
• Ground vibration: vibration frequency ≤10 Hz, amplitude ≤0.5μm
  10 Hz<Vibration frequency≤30 Hz Amplitude≤1μm
  Vibration frequency ≥30 Hz, amplitude ≤3μm