Lathe And Milling Processing Parts
Lathe and milling processing parts refer to precision metal parts that are manufactured using lathe and milling machines. These machines use computer numerical control (CNC) to produce parts to exacting specifications with high accuracy and precision.
Lathe machines are used to produce parts that have a cylindrical shape, while milling machines are used to produce parts with complex shapes and irregular surfaces. The combination of these two machining processes allows for the creation of parts with different shapes, sizes, and complexities.
Lathe and milling processing parts are used in a wide range of industries, including aerospace, automotive, electronics, and medical. These parts are typically produced from a variety of metals, including steel, aluminum, brass, and copper.
The advantages of lathe and milling processing parts are their high accuracy and precision. The CNC machines used in their production are programmed to make precise cuts and movements, resulting in parts that are consistent and accurate. This is especially beneficial in industries where quality control is essential for safety and reliability.
Another benefit of lathe and milling processing parts is their versatility. The combination of the two machining processes allows for the creation of a wide range of parts with complex shapes and irregular surfaces. These parts can also be produced in large quantities, allowing for efficient mass production.
Lathe and milling processing parts provide a cost-effective solution for many manufacturing needs. The precision of these machines means that parts can be manufactured to exact specifications, minimizing the need for additional processing or finishing. This can result in significant cost savings for manufacturers and ultimately lower prices for consumers.
In conclusion, lathe and milling processing parts are essential components in the manufacturing industry. These precision parts provide accuracy, versatility, and cost-effectiveness for a wide range of applications. With the ability to produce parts with high accuracy and precision, lathe and milling processing parts offer a powerful solution for many manufacturing needs.
Turning And Milling Operations,Lathe And Milling Machining Parts,Custom Lathe And Milling Parts,Pricision Lathe And Milling Parts Lizhi Precision Manufacturing Technology Co.,Ltd , https://www.autoindust.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Advancement method for improving SKF bearing device Ways to improve the accuracy of SKF bearing units
1. SKF bearing precision improvement method SKF bearing in the host after the end of the device; such as measuring the radial runout of SKF bearing spindle; can be found that each of the measured values ​​have a certain change, measured in succession; can be found through the necessary turn After the number; this change will be approximately repeated. The target for measuring the degree of this change is the cycle rotation precision; changing the number of revolutions required to approximately repeat the presentation represents the "quasi-period" of the cycle rotation accuracy; the magnitude within the quasi-period Change the amplitude is large; that is, the cycle rotation accuracy is poor. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
For example, the SKF bearing spindle is properly preloaded; the speed is gradually increased to the near working speed; to achieve the "run-in" effect of the bearing; the cycle rotation accuracy of the spindle can be improved.
2. A method to improve the precision of SKF bearings <br> A factory trials precision instruments; the spindle uses the 6202/P2 type bearing and its accuracy is still not satisfactory; the rear journal is thickened and a raceway is made on it to replace the inner ring; The steel balls are measured in a dense manner; each of the three groups of scales is divided into three groups; each group of steel balls is separated by a distance of nearly 120°; because of the reduction of a heavy processing appearance; and a reduction of the cooperation appearance; together with the improvement of the shaft-bearing The stiffness of the system; and the maximum three particles and the smallest three steel balls are nearly equidistantly distributed; and the axis reversal accuracy is improved; therefore, the accuracy requirements of the instrument are satisfied.
3. Inductive verification method for SKF bearing device accuracy <br> After loading the angular touch ball bearing into the spindle of SKF bearing; the order of verification of the device accuracy is as follows (for example, a general lathe with a shaft diameter of 60 100mm):
.1) Measuring the dimensions of the shaft and the bearing housing hole; to determine the cooperation precision of the bearing; the cooperation requirements are as follows: the inner ring and the shaft adopt the interference cooperation; the interference is 0~+4μm (0 in light load and high precision) The outer ring and the bearing housing hole adopt the gap cooperation; the gap amount is 0~+6μm (but when the bearing at the free end uses the angular touch ball bearing; the gap can also be increased), the circularity of the shaft and the seat hole is less than 2μm; the bearing The end face parallelism of the spacer used is less than 2μm; the outer end face of the shoulder is not less than 2μm, the runout of the bearing seat is less than 4μm, and the inner end of the front cover of the main shaft is less than 4μm.
.2) Fixed-end front bearing on the shaft: the bearing is completely cleaned with a clean clearing oil; the grease is smooth; the organic solvent rich in 3% to 5% smooth grease is first written into the bearing for degreasing Then use the oil gun to fill the bearing into the bearing (accounting for 10% to 15% of the bearing space volume), heat the bearing to raise the temperature by 20 ~ 30 ° C; use the hydraulic press to install the bearing into the shaft end, the tight sleeve pressure On the shaft and with the appropriate pressure against the bearing end face to axially position it, the belt of the spring scale is wound on the outer ring of the bearing; the method of measuring the starting torque can be used to verify whether the regular preload can be greatly changed ( Even if the bearing is correct; but because of the cooperation or deformation of the cage; the preload can also be changed).
.3) Inserting the imported bearing shaft assembly into the seat hole: heating the seat hole to raise the temperature by 20 to 30 °C, and inserting the bearing shaft assembly into the seat hole with successively gentle pressures, adjusting the front cover; and fastening the front cover The quantity is 0. 02~0. 05μm; the outer end surface of the bearing seat is used as the reference; the head of the dial gauge conflicts on the outer surface of the journal; the shaft is rotated to measure its beating; the demand error is below 10μm, and the dial gauge is positioned On the shaft; the head conflicts with the inside and outside of the seat hole; the shaft is rotated to measure the coaxiality of the front and rear seat holes of the bearing housing.
.4) Selecting the free end bearing in an orientation capable of counteracting the error; supporting the bearing position after the device is placed to the bearing housing; and canceling the roundness error and the coaxiality error between each other as much as possible.
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Ways to improve the accuracy of SKF bearing units
Source: China Bearing Network Time: 2014-04-03