Precautions for operation of the hottest wire cutt

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Precautions for the operation of wire cutting machine

I. the operator must be familiar with the structure and performance of the cooler bed configured in the pump station, and can take the post only after passing the training. It is forbidden for non wire cutting personnel to use wire cutting equipment without authorization. It is forbidden to use wire cutting equipment with super performance

II. Preparation and confirmation before operation

1. Clean up the waste and impurities in the worktable and workbox, and do a good job in the "5S" work of the machine tool and its surroundings

2. Check and confirm whether the working fluid is sufficient. If not, add it in time

3. In case of unmanned machining or precision machining, check whether the electrode wire allowance is sufficient and sufficient. If it is insufficient, replace it

4. Check and confirm the amount of waste silk in the waste silk barrel. If it exceeds 1/2, it must be cleaned in time

5. Check whether the filter inlet pressure is normal and whether the compressed air supply pressure is normal

6. Check whether the interelectrode line is dirty, loose or broken, and confirm whether the interelectrode line has interference when moving the workbench

7. Check the wear condition of the conductive block, change the position of the conductive block during wear, and clean it in case of dirt

8. Check whether the pulley operates stably and whether the electrode wire operates stably. If there is runout, check and adjust it

9. Check whether the electrode wire is vertical. The verticality of the electrode wire should be straightened before processing

10. Check whether the lower guide device is loose and whether the opening and closing of the upper guide device are smooth and in place

11. Check the nozzle for defects; Whether the lower nozzle is 0.05 ~ 0.1mm lower than the worktable

12. Check whether relevant switches and keys are sensitive and effective

13. Check whether the machine operates normally

14. In case of any abnormal phenomenon of the machine tool, it must be reported in time for handling

III. precautions for workpiece clamping

1. Rust slag and impurities must be cleaned before workpiece clamping

2. Before clamping, the mounting surface of cutting workpieces such as formwork and template shall be polished and trimmed with oilstone to prevent the surface from being uneven, affecting the clamping accuracy or interfering with the lower nozzle

3. The clamping method of the workpiece must be correct to ensure that the workpiece is straight and tight

4. It is forbidden to use sliding screw. The locking depth of the screw shall be more than 8mm, and the locking force shall be moderate, not too tight or too loose

5. The pressure block shall be clamped flat to ensure that the clamping parts are evenly and evenly stressed

6. Be careful in the clamping process to prevent the workpiece (plate) from falling due to instability

7. The position of workpiece clamping shall be conducive to workpiece alignment, adapt to the travel of the machine tool, and facilitate programming and cutting

8. After the workpiece (plate) is clamped, it must be checked again to confirm whether it interferes with the machine head, inter electrode line, etc

IV. precautions during machining

1. When moving the workbench or spindle, correctly select the moving speed according to the distance to the workpiece, and strictly prevent collision when moving too fast

2. During programming, the correct processing technology and processing route shall be determined according to the actual situation, so as to prevent the workpiece from being scrapped or cut off before being dropped due to the insufficient processing position, the DuPont high performance materials division has a worldwide but closely related area, and the development of expert network or insufficient edge strength

3. Confirm whether the program and compensation amount are correct before wire cutting

4. Check whether the tension of electrode wire is sufficient. When cutting taper, the tension should be reduced to half of the normal value

5. Check whether the feeding speed of electrode wire is appropriate

6. Select Open machining or close machining according to the actual situation of the workpiece to be machined, and try to shorten the distance between the nozzle and the workpiece on the premise of avoiding interference. During close machining, the distance between the nozzle and the workpiece is generally 0.05 ~ 0.1mm

7. Check whether the jet selection is reasonable. Use high-pressure jet for rough machining and low-pressure jet for finish machining

8. Pay attention to observe and judge the processing stability during starting cutting, and timely adjust in case of any defect

9. During the processing, the cutting conditions shall be inspected and supervised frequently, and the problems found shall be handled immediately

10. In case of abnormal short circuit or abnormal shutdown of the machine tool during processing, the real cause must be found out and the correct treatment must be made before continuing processing

11. When the processing is suspended due to wire breakage and other reasons, it must be confirmed that there is no interference after processing before continuing the processing

12. Modify the processing condition parameters within the allowable range of the machine tool

13. It is forbidden to touch electrode wires and cut objects during processing to prevent electric shock

14. Prevent the processing fluid from splashing out of the working box during processing

15. It is forbidden to lean against the machine tool working box during processing to avoid affecting the processing accuracy

16. Before cutting off the scrap or workpiece, wait for the machine tool to observe. When cutting off, immediately stop processing. Note that the scrap or workpiece must be taken out before moving the workpiece table

v. other precautions

1. The startup and shutdown of the machine tool must be carried out in accordance with the relevant provisions of the machine tool. Illegal operations are strictly prohibited to prevent damage to the acceptance components and system documents of the electrical flame retardant and antistatic POM project

2. After starting the machine, the machine must return to the original point (the electrode wire should be cut first) to make the machine calibration consistent

3. When disassembling the workpiece (plate), pay attention to prevent the workpiece (plate) from falling unsteadily

4. After processing, the sundries on the workpiece table and in the work box shall be cleaned in time, and the "5S" work of the machine tool and its surroundings shall be done well

5. Tools, fixtures and workpieces (plates) shall be protected against rust and placed at designated positions

6. Make necessary records after processing

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