Cylinder liner is an important part of automobile engine. Its processing quality affects the life and fuel consumption of automobile engine. In the last process of cylinder liner processing, it needs to be finished with centerless cylindrical grinding machine to reach the inner and outer diameter of cylinder liner. Accuracy and surface roughness requirements. Centerless cylindrical grinding is a machining method suitable for mass grinding the outer circumference of a workpiece. This grinding is easy to achieve strong, high speed and wide grinding wheel grinding. During the grinding process, the workpiece does not need to be clamped centrally. The workpiece is placed between the grinding wheel and the guide wheel. Depending on the pallet, the grinding wheel and the guide wheel rotate at high speed to drive the workpiece to rotate. In the cylinder liner machining, the cylinder liner is placed between the guide wheel and the grinding wheel, and the cutting mill is used to machine the cylinder liner to a specified size.
In order to improve the quality of the product, it is necessary to carry out on-line inspection of the cylindrical grinding process of the cylinder liner. This paper mainly studies the wall thickness measurement of the cylinder liner parts. The tube end laser thickness gauge can accurately detect the wall thickness.
1, the principle of measurement
The outer diameter of the cylinder liner is machined as shown in the figure below. The cylinder liner is sandwiched between the guide wheel and the grinding wheel, and the bottom is supported by the pallet. During the machining process, the cylinder liner is driven by the grinding wheel to rotate clockwise.
Although the workpiece is not fixed by the jig during the machining of the centerless grinder, the position of the workpiece is relatively small near the bottom plate. Two high-precision laser probes are arranged opposite to the inside and outside of the cylinder liner. The upper and lower laser probes respectively measure the distances h1 and h2 from the inner and outer walls of the cylinder liner, and the distance between the two sensors is set to h3 by the clamp, so that the thickness of the cylinder sleeve at the measuring point is H=h3-h1- H2.
2, structural composition
The complete set of equipment for measuring the wall thickness of the cylinder liner includes: wall thickness measuring device, main control cabinet (built-in control circuit, communication equipment and industrial computer), display device (liquid crystal display), sound and light alarm device, and the like. The structure of the equipment and the structure of the main control cabinet and wall thickness measuring device are shown in the figure below.
Since the cylinder liner can rotate by itself, the probe part of the laser thickness gauge can be made into a fixed mode without rotating. It can also accurately measure the accurate wall thickness of the cylinder liner. Due to the limitation of the probe, the laser thickness gauge can measure The inner diameter of the cylinder liner should be greater than or equal to 80mm.
The laser thickness gauge is also equipped with a professional software system for data display and analysis. The information of the cylinder liner is displayed and analyzed, and information such as thickness information and fluctuation curve can be accurately obtained.
3, expansion
The outer diameter of the cylinder liner can also be measured by the photoelectric caliper. The caliper is characterized by the fact that the outer diameter can be detected online. There is no problem in detecting the large diameter cylinder liner. Online testing equipment.
Conclusion
The laser thickness gauge has strong anti-interference ability and high sensitivity. It can measure the wall thickness of the cylinder liner with high precision, and has a software analysis system to analyze the measurement data, so that the staff can understand the information more accurately and have the knowledge. Storage function, you can view historical data at any time.
Injection products for injection molding materials used are different, because it has many excellent performance, and other materials that are not in the national economy departments, use more and more wide, the scope also more and more big, can have people need a variety of excellent performance, which makes injection has been widely used in agriculture, construction, automotive, avionics and logistics, packaging and other fields. Combined with their respective performance with dongguan Macchi plastic injection products xiaobian together to understand all kinds of plastic related application in the development.
Plastic Door Lock,Rice Cooker Imd Products,Household Imd Products,Class Imd Products
Dongguan Nanhuang Industry Co., Ltd , https://www.soushine-nanhuang.com