The measuring method is carried out on the self-made horizontal large hob inspection instrument. The specific operation is as follows: firstly, the tested panel gear hob is wiped clean and installed on the taper mandrel of the corresponding aperture. For the two-axis table, the radial direction, and the axial direction respectively, the hob is aligned.
Then, the rake face is leveled with the center height block. At this time, the hob should not be rotated. Position it on the rake face of the hob near the root with a 0.002mm lever dial gauge (), and then use another 0.002mm lever. The sub-table () is zero at the position of the tooth back root near the edge. Visually, the two tables are in the same plane in the axial direction. Adjust the zero process hob not to rotate.
It plays the role of positioning and indexing, and is used for measuring the positioning of the meshing line. The horizontal position can be combined with the gauge block and the micrometer to perform displacement positioning, and the longitudinal scale reading on the instrument can be directly read in the longitudinal direction. The measurement process is as follows: First step: Firstly, by calculating the main parameters of the hob, the distance between the lateral movement of each instrument table and the theoretical value of the longitudinal movement are obtained.
For example: insert gear hob with a pressure angle of 20° and a modulus of 18 and 8 teeth.
Find the distance you want to move in the horizontal direction. (from the tooth root to the top of the tooth) (1) Full tooth height 2.5m2.5×18=45(mm) (2) Root root tip arc height 0.3m0.3×18+0.3×18=10.8(mm (3) Effective tooth length (1)-(2)=45-10.8=34.2 (mm) Select effective tooth profile length 34mm laterally from tooth root to tooth tip, move outward by 2mm, measure roll The knife just measures one more tooth of the two-week spiral line, which can meet the accuracy requirement of the hob meshing line, 34÷2=17 (tooth). Step 2: Calculate the distance of the longitudinal movement of each adjacent row (1) mπ÷8 =18×3.14÷8=7.069 (mm) Since it is detected by the direction of the meshing line, the lateral direction is moved to the top of the tooth by two millimeters when the second tooth is measured. Therefore, the change of the axial movement is calculated: (2) 2tg20 °=2×0.364=0.728(mm) Therefore, the distance in the direction of the mesh line actually moves, ie the theoretical value is: (3)(1)-(2)=7.063-0.728=6.335(mm) then according to each The difference between the measured data of the tooth and its theoretical value is the actual error of the meshing line.
3 Error Analysis When measuring the meshing line error, the weekly error has an effect on the measurement result. When measuring the meshing line error, the weekly error should be taken into account, record and mark on the hob, and rotate in the indexing. There are compensations on the top, and multiple pressure gauges corresponding to adjacent quarters 1, 3, and vice versa.
Random error analysis calculates the dial gauge used in the measurement of the meshing line of the gear hob and other devices that can affect the final result reading. The random error is measured as follows: 00.0010.0010.0020.002X1=0.001200.0020.0020.0020.003X2=0.0018 Micrometer 00.0010.00100X3=0.0004 Longitudinal reading microscope 0000.001X4=0.0002 The standard deviation of each random error is: S1=ni=1(xi-x2)2n-1=0.0008(mm)S2=ni=1(xi-x2 2n-1=0.0011(mm)S3=ni=1(xi-x3)2n-1=0.00045(mm)S4=ni=1(xi-x4)2n-1=0.0004(mm) The above four kinds of errors The δ=S21+S2+S23+S24=0.00082+0.00112+0.000452+0.00042=0.0014(mm) system error analysis and synthesis operation are synthesized according to the verification procedures of the tables used below to find the indication errors of the respective tables.
Research on the type of axle series products. For the rural car environment, organize personnel to tackle some light axle series products to ensure product quality and price advantage, and serve the “three ruralâ€.
In recent years, the Party Central Committee has attached great importance to the "three rural issues". The party and state leaders have been highly concerned about the development of the agricultural machinery industry and agricultural vehicles, and have fully affirmed and highly praised the agricultural machinery, agricultural vehicles and other industries to promote rural economic development. . Yihe Axle Co., Ltd. fully understands and implements the spirit of the national leaders' instructions on the issue of “agriculture, rural areas and farmersâ€. Agricultural products are characterized by practicality and low cost, in line with China's national conditions and economic laws, to meet the needs of rural markets and farmers, and for agricultural products. The company adheres to the principle of “low price, high qualityâ€, and actively serves the “three rural†products with high quality and low price products. As always, it adheres to the belief of serving “agriculture, rural areas and farmers†and contributes to the prosperity of farmers and the construction of new countryside.
4.3 Service customers Dedicated to the rapid development of social companies, it is inseparable from the strong support of party committees and governments at all levels, and cannot be separated from the help of all sectors of society. The company always adheres to the tenet of “developing and not forgetting to return the societyâ€. While actively promoting the local economic development, the company insists on doing practical things for the people and doing good things. The funds donated to the school each year amounted to more than 1 million yuan, and invested in the establishment of Yihe Primary School in Zhujie. While improving the material living standards of employees, we will actively carry out some healthy and beneficial activities and actively carry out activities to create "harmonious justice." There are good practices in the enterprise that help the poor, care for the workers, help others, love others, care for the collective, and selfless dedication. He has been awarded the honorary title of Advanced Unit of Spiritual Culture Construction, Weifang City Exemption Inspection Enterprise, Weifang City Bank Credit Best Enterprise, Weifang Labor Relations Harmonious Enterprise, and Shandong Province Donation Education Advanced Unit. reward. As an important part of society, enterprises have promoted the development of socialist spiritual civilization.
In this respect, Yihe Axle Company not only has a special person in charge, but also has a certain amount of funds each year to support and reward relevant advanced personnel, and has formed a good trend within the enterprise, so that the employees can invest in a new spirit. Going to work and life.
5 Enterprise development prospects The development of China's auto parts industry has great prospects. From 2000 to 2006, China's automobile production was 2.08 million, 2.36 million, 3.24 million, 4.39 million, 5.75 million, and 7 million, respectively, with growth rates of 14%, 13%, 37%, and 35 respectively. %, 16%, 14%, 21%, such a high-speed development state provides a vertical and horizontal development space for the development of China's auto parts industry. We have reason to believe that in the years to come, China's auto industry will continue to develop in a healthy, stable manner. As the foundation of the auto industry, our auto parts industry will continue to develop rapidly.
After years of unremitting efforts, Zhucheng Yihe Axle Co., Ltd. has developed into one of the largest axle production bases in China. We have made outstanding contributions to the local economy and the development of China's automobile industry; and we are also making unremitting efforts to build corporate culture and corporate culture. We believe that in the near future, we will not only become the leader in the auto parts industry in China and Asia. We will also sprint towards higher goals.
Seed Opener Blade Assembly:
Including disc openers for Case-IH, New Holland, John Deere planters, etc.
Our blades are designed to cut a trench precisely to the selected depth. These Series baldes's special veleved edges make penetration easy, retain their sharp edge and offer longer life.
Seed Opener Blade Assembly, Agricultural Disc Openers, Agricultural Disc Blades, Farm Disc Blades
NingBo Greenly Machinery Co.,LTD , https://www.greenlyagparts.com