3.2. Inspection standards before processing:
3.2.1. Divide the center and read the number. After each division, copy the working coordinates first, and then check again whether the distance from the center to both sides is consistent, to ensure that the center and reading are correct.
3.2.2. Tool selection, tool loading, tool setting and z-axis coordinate reading.
Select the appropriate tool according to the programming list. Clean the cutter head and nozzle thoroughly before installing the tool. After installing the tool, use the calibration table to check whether the tool has deflection. It is necessary to check again after the tool is set and the number is read, so as to avoid the wrong knife, which will bring great loss to the company.
3.2.3. transport program, start processing: before cutting, use single section execution, transfer speed and feed speed to the slowest, slow down the knife, watch the machine tool display Z axis allowance, check whether there is abnormal, if abnormal, press the pause button immediately, find out the reason to solve the anomaly, confirm that after normal, adjust to the right speed to start processing.
3.2.4. In the process of processing, always pay attention to observe whether the processing is abnormal and whether the tool is worn. If the tool wear is serious, the tool grinding shall be suspended to ensure the normal processing.
3.3. Mold kernel processing standards
3.3.1. After getting the drawing and workpiece, check whether the drawing is consistent with the die number of the workpiece.
3.3.2. Measure the actual size of the workpiece with measuring tools.
3.3.3. Check whether the direction of water transportation and reference angle on 2D drawing is consistent with that on the programming list.
3.3.4. Remove the rough edges at the bottom and around the workpiece with a 400 ා oilstone, and wipe the workpiece with cloth scraps.
3.3.5. Place the workpiece on the clamping tool of the machine platform, level the workpiece plane and perpendicularity with parallelism, and the perpendicularity tolerance is within ± 0.015,
Then fix the workpiece firmly and start to divide according to the position marked on the programming list and the size of z-axis collision. (pay attention to whether the edge finder collides with the workpiece during the separation) input the data of the mechanical coordinates x, y, Z into the corresponding coordinates.
3.3.6. According to the programming list, transfer all programs into the computer, simulate with the tool path simulation software, observe the processing area and the highest and lowest depth of processing, and determine the clamping direction, clamping reserved position and tool length of the workpiece.
3.3.7. Install the corresponding tool according to the programming list, and input the tool parameters automatically with the method of automatic tool setting.
3.3.8. Transfer the program to the machine for processing.
3.4. Copper processing standard
3.4.1. After getting the program sheet, find the appropriate copper material according to the mold number, size and quantity of copper on the program sheet.
3.4.2. According to the requirements of the programming list, process the coarse and young products. (the copper material is marked with a code, “a” stands for Yougong, and “B” for coarse material.
3.4.4. Check whether the tool on the program list is consistent with the tool on the machine tool magazine.
The program is simulated with tool path simulation software to observe the processing area and the highest and lowest machining depth to determine the clamping direction, reserved position and tool length of copper male.
3.4.5. Transfer the program to the machine for processing. The workpiece must be prepared for the next machine in the processing, so as to reduce the above preparation time.
3.5. Formwork processing standards
3.6.1. After the workpiece is processed, check whether the shape of the workpiece is consistent with that of the 3D drawing before getting off the machine, and then check whether the workpiece has missed processing, over cutting, and the position of joint connection.
3.6.2. According to the data marked on the programming list, use the calibration table or depth meter to measure the number, and use the needle gauge or plug gauge to measure some matching positions and positioning positions.
3.6.3. Parting surface measurement: according to the data provided by drawings or programmers, detect the coordinates of points (x, y, z) on several parting surfaces, and check whether the parting surface has been processed to the number.
3.6.6. Measure whether the depth of all flat positions reaches the number. For some positions that need to be connected smoothly, the processing shall be improved first, and then the connection shall be carried out slowly after painting the color on the connecting position.
3.6.7. Check all other position data that require CNC machining accuracy and confirm that it is OK before getting off the machine.
3.7 precautions:
3.7.1. Be careful when taking out the tool from the tool holder to avoid scratching fingers.
3.7.2. Do not allow the machine to run fully automatically when using the NC program that has not been tried out.
3.7.3. When the shaft is still rotating, adjust the coolant flow direction with great care.
3.7.4. In case of emergency, press the red emergency button on the controller.
About the author