JQMT Machine Tool Operation Frequently Asked Questions and Answers

I. Issues Related to Machine Tool Startup

1. Question: After turning on the power, the machine tool shows no response and the display screen is off.
   Answer: First, check whether the main power switch has been correctly turned on to ensure that the power supply line is normal. If the power switch is on, check whether the fuse inside the machine tool is blown. If the fuse is blown, replace it with a fuse of the same specification. At the same time, check whether the emergency stop button of the machine tool is in the pressed state. If it is pressed, rotate it clockwise to reset.
2. Question: When the machine tool starts up, an alarm message "System initialization error" appears.
   Answer: This may be caused by the loss or damage of the parameters of the machine tool control system. Try restarting the machine tool. If the problem persists, contact the technical support personnel of JQMT. They can use professional equipment to detect the control system and reset or restore the correct parameters.

II. Issues Related to Processing Precision

1. Question: The dimensions of the processed components deviate from the designed dimensions.
   Answer: First, check whether the programming data is accurate and confirm that the dimension parameters in the program are consistent with the design drawings. Then, check the wear condition of the tool. Tool wear may lead to inaccurate processing dimensions. If there is wear, replace the tool in a timely manner. In addition, whether the worktable of the machine tool is level will also affect the processing accuracy. You can use a level gauge to detect and adjust it.
2. Question: The processed surface appears rough.
   Answer: This may be caused by unreasonable cutting parameter settings. Appropriate reduction of the cutting speed and increase of the feed rate can improve the surface quality of the processed part. At the same time, check whether the cutting edge of the tool is sharp. If the tool becomes dull, it should be sharpened or replaced in a timely manner. In addition, whether the workpiece is clamped firmly will also affect the processed surface quality. Ensure that the workpiece is clamped firmly to avoid loosening during processing.

III. Issues Related to CNC System Operation

1. Question: When entering a program in the CNC system, a "Syntax error" prompt appears.
   Answer: Carefully check the entered program code to ensure that it follows the programming syntax specified by the JQMT machine tool CNC system. Pay attention to the case of letters, punctuation marks, and instruction formats in the code. Common errors include missing decimal points, using incorrect instruction characters, etc. You can refer to the machine tool's programming manual for line - by - line inspection and modification.
2. Question: Unable to call a saved program in the CNC system.
   Answer: First, confirm whether the program has been saved correctly and whether the save path is correct. Enter the program management interface of the CNC system and check the program list. If the program is not in the program list, there may be a problem with the saving process, and you need to save it again. If the program exists but cannot be called, check the program's permission settings to ensure that you have the permission to call the program.

IV. Issues Related to Automation Functions

1. Question: The automatic tool - changing device cannot change tools normally.
   Answer: Check whether the pneumatic or hydraulic system of the tool - changing device is working properly and ensure that the pressure is within the specified range. Check whether the tool is correctly installed in the tool magazine. If the tool is not installed firmly, it may lead to tool - changing failure. At the same time, check whether the tool - changing command is correctly input and whether the positioning of the tool magazine is accurate. If the above are all normal, it may be a mechanical failure of the tool - changing device, and professional maintenance personnel need to be contacted for repair.
2. Question: The automated welding machine tool has discontinuous weld seams during welding.
   Answer: First, check whether the welding materials (such as welding wire) are supplied normally and whether there is any blockage or breakage. Then, check the welding parameter settings, such as welding current, voltage, welding speed, etc., to see if they are appropriate. Inappropriate welding parameters may lead to discontinuous weld seams. In addition, the surface cleanliness of the welded workpiece will also affect the welding quality. Ensure that there is no oil, rust, or other impurities on the welding part.

V. Issues Related to Maintenance

1. Question: After the machine tool runs for a period of time, abnormal noise occurs.
   Answer: This may be caused by insufficient lubrication of some components of the machine tool. Check the lubrication system of the machine tool to ensure that the lubricating oil level is normal and add or replace the lubricating oil regularly according to the requirements of the machine tool operation manual. At the same time, check whether the transmission components (such as lead screws, guide rails, etc.) are loose or worn. If so, tighten or replace them in a timely manner.
2. Question: How to carry out daily cleaning and maintenance of the machine tool?
   Answer: After the processing is completed every day, the chips and debris on the machine tool worktable should be cleaned up in a timely manner to prevent chip accumulation from affecting the processing accuracy. Wipe the appearance of the machine tool with a clean cloth to keep the machine tool clean. Regularly clean and lubricate the key parts of the machine tool (such as guide rails, lead screws) to ensure their normal operation. At the same time, check whether the connections of the electrical system are firm to avoid loosening and causing malfunctions.