发布时间：2020-10-16 来源：http://www.jnhxtcg.com 浏览量：
Jinan color steel tile C steel structure needs to be machined steel members should pay attention to the quality of the bar before machining, the operator must adhere to the following work.
1、 Before the steel structure member is machined, inspect whether the flat, straight and twisted deformation of the bar to be machined is within the standard requirements, and the parts with excessive deformation shall be rejected. The operator should not only pay attention to the machining and ignore the problem of excessive deformation of machined parts.
The uneven, non straight and distorted deformation of steel structure processing parts will cause the milling and planed surface can not be used. Therefore, we must adhere to the quality review (review and check) of machined parts before machining.
2、 For the determination of machining datum line of machining workpiece, the datum line of machining has been specified in the previous process (the sample has been punched and printed), and the exact total processing length size shall be obtained from the previous process, and then the operator shall personally review (check) and confirm the total length between the reference line and the reference line before processing. The above process only tells the machining process that the machining process has been machined The operator should calculate the datum line by himself for the total length after construction. The operator should measure the required size from the middle part of the total length of the workpiece to the two ends of the workpiece to obtain the machining reference line. It is not allowed to measure the machining datum line based on the rough surface of the blank workpiece, because the rough surface of the blank processing part is uneven, it is impossible to determine any edge or surface according to this.
3、 Before machining the steel structure, first place the workpiece on the machining jig frame and position it close to the jig frame. The backup part and the machined tool surface should be at 90 degrees. After confirming that there is no error, the fixture is used to clamp and fix the workpiece and the machining jig frame.
4、 When starting machining, the operator and the surrounding safety protection work should be in place. When the machine tool is under cutting force, it is necessary to inspect whether the fixed processing parts are abnormal. If the problems are found, they should be solved in time. The feed amount of the machine tool should not be too much. It must be operated according to the machining standard, otherwise the end face precision (degree) after machining can not meet the standard requirements.