3. Quality assurance and technical services
1. Installation and acceptance: Yixin Company is responsible for machine packaging and transportation, on-site installation and commissioning, and machine acceptance according to the People's Republic of China National Metrology Technical Specification JJF1064 "Coordinate Measuring Machine Calibration Specification", signed and approved by both parties.
2. Training: Yixin Company will go to the buyer's site for three days of personnel operation training for two persons for free.
3. Warranty period: After the buyer passes the test and acceptance, the measuring machine will be guaranteed for free for 12 months, but not more than 13 months from the actual delivery date.
4. Technical service: Yixin company promises real-time telephone consultation and guidance to solve customer problems, if necessary, 48 hours to solve the problem at the customer site, responsible for the service for life.
4. Description of technology, function and characteristics

1. Host

 
(figure 1)

Main materials and parts:Class 00 special high-quality granite platform and three-axis guide rail, precision casting processing aviation aluminum alloy column, United KingdomRENISHAW high-precision grating, reading head length measuring system, SMC precision air filter and automatic detection control device, imported international famous brand DC servo motor, German FESTO air pipe joint, high-quality air bearing, non-linear spring system imported from Germany, German IGUS low friction and noiseless drag chain and high flexible drag chain cable, US Gates (GATES) high-performance timing belt, US imported precision ball bearing, High-grade automotive-grade imported industrial finishes, etc.
1.1The gantry movable structure and the integral worktable have the characteristics of strong carrying capacity, wide workpiece placement space and convenient loading and unloading. All 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, anti-aging deformation ability, good rigidity, and minimal geometric deformation; processing and inspection of new granite guide rails jointly developed by professional granite manufacturers The technology improves the processing accuracy of granite guide rails to a new level.

 
(figure 2)

1.2 The use of high-precision air bearings and the surrounding bearing layout design (as shown in Figure 1) improves the rigidity and stability of the machine. Even if it works for a long time, it can maintain high accuracy and ensure the excellent dynamic characteristics of the machine.
1.3 The unique Z-axis anti-rotation design is an important part of determining the accuracy of the measuring machine. The reliable anti-rotation structure design can achieve high accuracy even when the probe extension rod is used.
1.4 The application of a unique non-linear spring system (patented technology) (as shown in Figure 2) 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.

 
(image 3)

1.5 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; the vibration isolation design of the transmission system makes it possible to move the machine at high speed Minimize the influence of mechanical vibration on measurement accuracy.
1.6 Imported low-friction and noise-free drag chains reduce the external force interference of various motion axes, and at the same time improve the flexibility and reliability of each motion axis.
1.7 The beam adopts a unique guide rail structure (as shown in Figure 3). 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.
1.8 The length measurement system adopts United KingdomRENISHAW high-precision reflective metal strip grating ruler and reading head, which has extremely high precision and precision stability.
1.9 The SMC high-precision air filter 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 equipment damage caused by forgetting to drain. The all-digital gas source detection device strengthens the sensitivity of gas source fluctuation detection and minimizes the influence of gas source on measurement accuracy.
1.10 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.
1.11 The design of the whole machine conforms to the principle of ergonomics, it is simple and convenient to use, easy to maintain and maintain.

 
(Figure 4)

2. Control system
The RENISHAW UCC control system (as shown in Figure 4) 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. It is the height of the coordinate measuring machine (CMM). Precision, accuracy, and high efficiency provide a solid foundation. The control system adopts Ethernet interface and computer communication, no need to expand any computer communication interface, also reduces unnecessary external wiring, and ensures the high reliability of the system.
2.1 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.
2.2 It is configured according to the 3-axis closed-loop motion mode, which can input 3 TTL orthogonal pulses and realize vector control.
2.3 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.
2.4 The UCC control system supports a variety of error detection methods, which can easily correct the accuracy of the measuring machine.

 
(Figure 5 )

2.5 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.
2.6 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.
2.7 The humanized design of the control box (as shown in Figure 5). 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. Rational DMIS measurement software
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.

(Figure 6)

3.1  The Rational DMIS software is built on the Windows platform and is very easy to operate.
3.2  Basic measurement functions (Figure 6):

1. 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.
2. Construction functions: intersect, divide, project, fit, tangent, parallel, perpendicular, translate, offset, mirror, extract, limit, and rotate.
3. Shape error evaluation: straightness, flatness, roundness, cylindricity.
4. Position error evaluation: distance, included angle, parallelism, perpendicularity, inclination, concentricity (concentricity), symmetry, position (two-dimensional and three-dimensional), circular runout, full runout.
5. Rational DMIS 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.
6. 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.
7. RENISHAW probe and stylus library. It is convenient to connect, configure, calibrate and use various probes and styluses of RENISHAW.
8. 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.

（图7）

     9.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.

3.3 Two-way data transfer function with CAD system (Figure 7):

1. 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.
2. 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.
3. The theoretical value can be directly read in the CAD model and compared with the measured value.
4. It can directly simulate the measurement offline on the CAD digital model and compile the measurement program.
5. The measurement results can be output to the CAD system in IGES format.
6. It can survey and map the workpiece to be measured, and can also do reverse engineering.
7. It can accurately align the CAD digital model of complex workpieces, and rebuild after measurement. And can display the CAD model from multiple views.

3.4 Graphics function

1. 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.
2. The movement status of the measuring machine can be displayed. With the support of Rational DMIS 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.
3. Graphical display output of measurement results.
4. Three-dimensional geometric element icons, rich dynamic toolbars, graphical toolbars and three-dimensional graphics display the measured geometric elements. The operator can operate intuitively and clearly. The measured geometric elements such as faces, cylinders, etc. can be displayed in three-dimensional graphics. Both wired and physical display functions provide a very clear image.

3.5  The two-way transmission of DMIS standard format measurement program supports DMIS5.0 standard.
3.6  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.
3.7  Have the ability to work on the Internet.

(Picture 8)

3.8  With power-off protection function and self-diagnosis function.
3.9  The online help function is in line with the online help instructions of Windows operating habits. The tree-shaped display and query are simple and convenient, and the operator can easily find the help content needed.
3.10 The measurement results are output (as shown in Figure 8) to report the test results circularly.

1. The measurement result report output can be given in the form of pictures and texts, and the result report is intuitive and easy to understand. The measurement results can be output in text format, Excel format, web format, etc. The output in multiple formats enriches the form of the operator's printed measurement report.
2. It has the function of designing and printing reports by users. That is, the user can design the icon and factory emblem of the measurement report and insert it into the header of the printed report. The flexible header function makes the output report more user-friendly.
3. The output report can display the upper and lower deviation values set by the user, as well as the function of automatically judging whether the measurement result is out of tolerance. Visual DMIS CNC CAD+ software can process the inspection results of any tested workpiece, output user measurement reports, and output the measurement results to IGES and other format files and point cloud formats.

4. Automation interface
  4.1 Standard automation interface software Visual DMIS Online Server, the automation interface software can realize the connection between the computer of the measuring machine and the external PLC controller, machine tool controller or other controllers through the RS232 interface, the expandable I/O interface or the Ethernet interface. Connect, realize the communication between the measuring machine and the external controller, achieve the purpose of controlling the external equipment or the coordinate measuring machine controlled by the external equipment, and realize the automatic online measurement.
  4.2  Visual DMIS Online Server supports OPC protocol to connect with external controllers.
  4.3  Visual DMIS Online Server can provide the external controller with relevant information such as the running status of the measuring machine, the zero return status of the measuring machine, whether the measuring machine is in a safe position, and the running status of the measuring program.
  4.4   Visual DMIS Online Server can accept control commands from external controllers, perform zero return, probe calibration, clear errors, return to a safe location, execute measurement programs stored in designated numbers or locations, and receive remote push programs. The number of measurement programs that Visual DMIS Online Server can execute is theoretically unlimited, only limited by the size of the program storage disk.
  4.5 In Visual DMIS Online Server, it is also supported to start a specified measurement program by using a code scanner or RFID scanner.

  4.6  Visual DMIS Online Server can send measurement data to a data server or other controllers via Ethernet or fieldbus. It can be connected to the MES or CAPP system of the customer's factory.
  4.7  Visual DMIS Online Server supports output data in common formats such as Txt, Excel, and DMO.
  4.8  Visual DMIS Online Server supports secondary development and function customization to meet the individual needs of automated production lines.

5. Probe system

5. 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