Jumping inspection instrument standard core shaft, eccentric shaft

SY-C14Jumping inspection instrument standard core shaft, eccentric shaftis also a kind ofJumping inspection devicemeasurementcalibrationStandard equipment.

One Usage introduction:

The SY-C14 jumping inspection instrument - standard core shaft and eccentric shaft are developed and manufactured according to the JJF 1109-2003 jumping inspection instrument calibration specification. Mainly used for calibrating the indication error of jumping inspection instruments and deflection inspection instruments. The jumping inspection instrument is widely used in the measurement of radial jumping, ellipticity, and end face accuracy of shaft, disc products, and mechanical components. Therefore, the accuracy of its jumping indication error is very important. The calibration standard instruments for jumping inspection instruments mainly include standard indicators, dedicated meter racks, jumping inspection instrument standard core shafts, and eccentric shafts as jumping inspection and deflection inspection instrument standards. The linearity is uniform, the manufacturing difficulty is high, and its accuracy requirements are high. It is one of the standard instruments in metrology laboratories.

II Technical Indicators:

1. Standard core shaft: The straightness is not greater than 2 μ m, and the circular runout of the outer circle of the core shaft relative to the top hole is not greater than 2 μ m

2. Standard eccentric axis: The eccentricity is (20~30) μ m, not greater than 1 μ m (k=3);The circular runout of the outer circle of the shaft relative to the top hole shall not exceed 1 μ m

Optional accessories: Standard indicator gauge with a division value of 1 μ m and a dedicated gauge holder

III Usage:

Jumping inspection instrument standard core shaft, eccentric shaftInstall a standard core shaft of corresponding length to the measuring range between the two tips of the deflection inspection instrument, and ensure that there is no movement between the standard core shaft and the deflection inspection instrument. Then, make the measuring head of the standard indicator make vertical contact with the upper surface of the standard core shaft in the vertical plane, or make horizontal contact with the side surface of the standard core shaft in the horizontal plane. Move the gauge holder and record the corresponding reading value.

4 Machining of standard core shaft and eccentric shaft for jumping inspection instrument:

Eccentric axis is a difficult point in mechanical processing. Workpieces with outer circles parallel to their axes but not overlapping are called eccentric axes. For large center of gravity parts such as elephants and cams, three jaw and four jaw chucks are commonly used for machining on ordinary machine tools. With the continuous development of science and technology, there is an increasing demand for eccentric parts with higher precision. Therefore, the demand for such eccentric fixtures has also increased accordingly, and their application prospects are broad. Eccentric shaft components are one of the common typical parts. According to the different structural forms of shaft components, they can generally be divided into optical axis eccentricity, stepped axis eccentricity, and irregular eccentric axis, etc; Or it can be divided into solid eccentric shafts, hollow eccentric shafts, etc. They are also used in machines to support transmission parts such as gears and pulleys, in order to transmit torque or motion.