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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much better t

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette

Elimination of Gear Backlash in CNC Machining Feed System

Elimination of Gear Backlash in CNC Machining Feed System   The transmission gear in the feed system of the CNC machining machine tool must eliminate the transmission gap between the meshing gears as much as possible, otherwise the motion will lag behind the command signal after each reversal of the feed system, which will affect the machining accuracy (accuracy) ). There are the following two common methods for CNC machining machine tools to eliminate the transmission gear gap.   1. Rigidity adjustment method   The rigid adjustment method is an adjustment method that cannot be automatically compensated for the tooth side clearance after adjustment. Therefore, the pitch tolerance and tooth thickness of the gear must be strictly controlled, otherwise the flexibility of the transmission will be affected. This adjustment method has a relatively simple structure and a better transmission rigidity.   (1) Eccentric shaft adjustment method   As shown in Figure 610, the gear 1 is mounted on th

What are the precautions for hardware processing operations?

  • 1. Before entering the hardware processing position, all employees should check whether their clothing can meet the job requirements. Slippers, high-heeled shoes and clothing that affect safety are not allowed. Those with long hair must wear a helmet. Maintain a correct posture at work and have sufficient energy to cope with the work. If we find that we are unwell, we must leave the job immediately and report to the leader. During operation, it is necessary to develop the main focus of thinking, chatting is strictly prohibited, mutual cooperation, the operator should not operate in a state of irritability, fatigue, to avoid traffic accidents, to ensure the safety of system operation information.
  • 2. Before mechanical operation, check whether the processing part is filled with lubricating oil, then start to check whether the clutch and brake are normal, and rotate the machine tool with air for 1-3 minutes. It is strictly prohibited to operate when the machine fails.
  • 3. When replacing the hardware processing mold, the power supply must be turned off first. After the punching movement management department has not stopped working, the mold can be installed and debugged. After installation, move the flywheel by hand to test punch twice, check whether the upper and lower mold design is symmetrical and reasonable, whether the screws are firm, and whether the blank holder is in a reasonable position.
  • 4. The machine cannot be started before other personnel leave the machine working area and remove the debris on the workbench.
  • 5. After the machine is started, one person transports the materials and operates the construction machinery and equipment. Others are not allowed to press the electrical construction or the foot switch board, let alone put their hands in a mechanical design work area or touch the machinery and other parts with their hands. During hardware processing, it is forbidden to reach into the working area of ​​the slider mechanism, and it is strictly forbidden to pick and place the workpiece by hand. When picking and placing the workpiece in the die, you must use tools that meet the standards. If you find an abnormal sound or malfunction of the machine, you should immediately turn off the power switch technology for analysis and inspection.
  • 6. Turn off the idle power supply when off work, and arrange the finished products, side materials and sundries on the post to ensure a clean and safe working environment.

The above operating technical regulations must be consciously followed. Do not operate in violation of regulations or break down. You should cooperate with the maintenance staff to check and repair. If a safety accident occurs, immediately cut off the power supply and keep on-site reporting to the manufacturer to wait for processing. All consequences caused by violation of relevant operating procedures shall be borne by the parties. .

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Humen town, Dongguan City, Guangdong Province.