-
Q The drilling spindle of the PPD103B series adopts stepless speed control. Once the drill bit contacts the workpiece, it will automatically switch to the working feed speed. How to set reasonable drilling parameters? Will it automatically retract completely after drilling through?
A The rotational speed and feed speed can be set through the program or the operation interface. Generally, they are adjusted according to the thickness and material of the sheet. When the drill bit contacts the workpiece, the system will switch from rapid advance to working advance to prevent impact; after drilling through, the spindle will automatically retreat to the original position quickly, without the need for manual intervention. It is recommended to regularly check the proximity switches and coolant flow to ensure the normal automatic circulation.
-
Q The hydraulic system is responsible for the longitudinal lifting and lateral pushing actions of the clamps. What are the common causes of insufficient clamping force or slow movements?
A Possible reasons include: low hydraulic oil level or high oil temperature, pressure drop caused by worn oil pumps, leakage in the hydraulic valve group or incomplete switching of the electromagnetic valve, and aging of the cylinder sealing ring. It is recommended to first check if the pressure gauge reading is within the set range, then check if there are obvious leaks in the pipeline, and replace the hydraulic oil and filter element if necessary.
-
Q How many tools can the selected automatic tool changing system (ATC) accommodate? How long does the tool changing process take approximately?
A The specific tool storage capacity can be customized according to customer requirements. It is common to have 8 to 12 tools. The tool changing action is automatically completed by the system. The time from issuing the command to the main shaft restarting usually takes 5 to 10 seconds. It is recommended to clean the tool claws and main shaft taper holes regularly to avoid tool changing failure due to iron filings residue.
-
Q The maximum rotational speed of the spindle is 3000 rpm. Is it necessary to pre-drill holes or use segmented feed when using carbide drill bits?
A Usually, pre-drilling holes is not necessary, but it is recommended to adjust the feed speed according to the thickness and material of the steel plate. For thick plates (≥20mm) or high-strength steel, a segmented drilling method can be used to facilitate chip removal and reduce cutting temperature. The mist cooling lubrication system needs to ensure sufficient flow to prevent the drill bit from overheating and wearing out.
-
Q Can this equipment drill holes on all three surfaces of H-shaped steel simultaneously? How can the consistency of hole positions be ensured?
A Yes, it can. The equipment uses 7 CNC axes and can automatically complete precise feeding and positioning. The drilling units on the three surfaces can be processed simultaneously, and with the closed-loop control of the feeding trolley, the hole position accuracy can be ensured to be consistent. It is recommended to regularly calibrate the relative positions of each spindle and check if the workpiece clamping is firm.
-
Q How do the lateral conveying and rotational conveying devices avoid the angle steel from getting stuck or falling during the turning process? How is the daily maintenance carried out?
A The rotational conveying is driven by a reducer. It is necessary to ensure that the surface of the angle steel has no severe warping or welding slag. It is recommended to regularly check the parallelism and rotational flexibility of the conveying rollers, and clean the iron filings on the roller path. The lubricating oil of the reducer should be replaced every six months, and the tension of the chain or synchronous belt should be checked.
-
Q The shearing unit uses a single-edge shearing method and has no waste. Will there be end deformation or inclined cutting edges when shearing thick angle steel (such as when the thickness is ≥ 10mm)?
A The single-edge shearing force is large. Under normal circumstances, the cutting edge is smooth without waste. However, for angle steel with a thickness close to the upper limit of the equipment, it is recommended to reduce the shearing speed and check if the gap between the blade is adjusted according to the material thickness. If the gap is too large, it is prone to cause slight deformation or burrs.
