1. Analyze the processing drawings and determine the processing process
According to the processing drawings provided by the customer, the process personnel can analyze the shape, dimensional accuracy, surface roughness, workpiece materials, blank types and heat treatment conditions of the parts, and then choose the machine tool, cutting tool, determine the positioning clamping device, processing method, processing sequence and the size of the cutting amount.In the process of determining the machining process, the instruction function of the CNC machine tool should be fully considered, the efficiency of the machine tool should be fully exerted, and the processing route should be reasonable, the number of cutting tools should be less and the processing hours should be short.
2. Calculate the coordinate value of tool path path reasonably
According to the geometrical size of the machining parts and the programmed coordinate system, the trajectory of the center of the tool path is calculated, and the data of all the tool positions are obtained.General CNC system has the function of linear interpolation and circular interpolation, for relatively simple planar shape parts, such as parts of line and arc contour machining, only need to calculate the geometric elements of starting point and end point, the circular arc of circle (or the circular arc radius), two geometrical element intersection point or tangent point coordinate values.If the NC system has no tool compensation function, the motion path coordinate value of the tool center should be calculated.For the parts with complex shapes (such as the parts composed of non-circular curves and surfaces), it is necessary to approximate the actual curves or surfaces with straight lines (or arcs), and calculate the coordinate values of their nodes according to the required machining accuracy.
3. Wrote CNC machining program for parts
According to the tool route of the parts to calculate the tool movement trajectory data and the determined process parameters and auxiliary actions, programmers can be used in accordance with the numerical control system of the functional instructions and program segment format, segment by segment to write the parts of the processing program.Attention should be paid to: First, the writing of the program should be standardized, and it should be easy to express and communicate;Second, on the basis of fully familiar with the performance of the CNC machine tools and instructions, the use of the instructions of the skills, programming skills.
The above three are CNC machining steps, CNC machining should be carried out in accordance with these processing steps, so as to more efficient machining.
The main business of our company are: Cnc Turning Parts, CNC Machining Parts, Gear Cutting, Lighting Accessories, Precision Grinding Parts and Hardware Parts.
