CNC turning lathe, Swiss type lathe original manufacturer since 2007.
Numerical control lathe knife disturbance of preparedness
about nc lathe colliding of issue, if you don't abide by the lathe will attack the personal issue or equipment safety regulations. In machining process, due to the greatly are all with the security door, processing requirements closed door, the operator does not directly operation of machine tool, and the personal issue risk is small, but the chance of equipment trouble attack is much bigger than other machining, because the general machine tools is after the operator experience with its own operating manual machine tool for processing; Numerical control lathe active manipulation of the machine tool for processing after processing procedure, not direct manipulation, but by the manipulation of the program. Technical personnel in the operation of the machine tool tend to program is wrong, wrong and correction, coordinate system or the cutting tool compensation into error, operation of the machine tools will be formed through carelessness. In the process of nc lathe using if attacks hit knife phenomenon, not only can bring great pressure in the heart to the operator, also can form must be economic losses. So how to prevent and guard against? As a result of the numerical control equipment is expensive, difficult to repair, and processing parts of high precision, high power, high active first depend on, to ensure the precision of machine tool equipment, once the attack precision of machine tools will be serious decline. In fact, the outbreak of the colliding of the issue have rules to follow, because at the beginning of the nc machining for software to lock, by imitating the processing, when press the active button in imitating operation interface cannot visually see whether the machine has been locked. Imitate is often not the knife again, if the machine did not lock operation, easy to attack hit knife. Before the imitation process should be to confirm the machine tool operation interface is locked. Processing forget closed air switch. Due to the application to imitate, in order to save time will often switch on idle running. After idling imitate not to go back to the reference point. Numerical control lathe is locked in the calibration program without moving, and the cutting tool relative workpiece machining imitating operation ( Must coordinate and changes in relative coordinates) , then the coordinates of the does not accord with the actual bearing, must by return reference point, to ensure that the mechanical zero point coordinates are in accordance with certain and relative coordinates. When CNC lathe overtravel, should hold the distance release button, using hand or hand to move in the opposite direction, which can eliminate. But if from the direction opposite, will attack damage of nc machine tools. Because when the press distance from super routine maintenance will not effect of machine and routine maintenance of travel switch has been the end of the trip. There are may lead to work station to continue moving in the direction of distance, after all the bad screw, forming machine tool damage specified line operation, often starts down to perform the cursor location. Demand calls for lathe cutter knife used in partial value, if did not call the cutting tool, operation procedures section of cutting tools, tool may not be wanted is perhaps different cutting tool to the colliding of the issue. In processing center, CNC milling machine, of course, must call first coordinate system, such as G54 and the length of the cutter compensation value. Due to the length of each knife compensation values are not the same, if not call also have may form a knife. So we should grasp the nc lathe programming skills, using various methods to verify the program, coordinate system and the length of the cutting tool radius compensation, compensation set up correctly, be careful in the process of operation, to prevent unnecessary mistakes, can be useful to prevent collision phenomenon of attack, better maintenance of CNC lathe.
There are a lot of businesses today that are very much in demand and one of them is a cnc service.
Get multi axis cnc machine cnc service from only reliable exporters, go to JSTOMI CNC Machine for more details.
cnc service receives the updates through industry associations, internal legal counsel, regional associations and legal publications.
Zhongshan JSTOMI CNC Machine Tool Co., Ltd. 's core technology of cnc service enables us to understand and utilize in a right way.
mill axis cnc service is slower than multi axis cnc machine but has a number of special applications, such as for mill axis.
Daily “Clean + Lubricate” as the Baseline
After each shift, remove chips and coolant residue from the fixture surface and collet jaws with a soft cloth or air gun to prevent corrosion and re-clamping errors. Every eight hours, apply a trace of rust preventive oil to spring collets, guide bushings and other moving parts; once a week, add a thin coat of grease to ball-screw nuts and hydraulic cylinder rods to reduce wear. Before any prolonged shutdown, spray anti-rust oil on internal bores and locating faces and wrap them in wax paper or plastic film.
Precision Calibration & Data Closure
Use ring gauges or master bars every month to verify repeatability of the fixture; log results in the MES. If deviation exceeds 0.005 mm, trigger compensation or repair. For quick-change systems (HSK/Capto), check taper contact percentage every six months—target ≥ 80 %. If lower, re-grind or replace.
Spare Parts & Training
Keep minimum stock of jaws, seals and springs to enable replacement within two hours. Hold quarterly on-machine training sessions for operators on correct clamping practices and anomaly recognition to eliminate abusive clamping.
In short, embedding “clean–lubricate–inspect–calibrate” into daily SOP keeps the fixture delivering micron-level accuracy, reduces downtime, and extends overall machine life.
Six preventive measures
Environment control: keep the workshop at a stable temperature and low humidity; exclude dust and corrosive gases to reduce chemical wear on guideways and screws.
Daily checks: remove chips every shift and inspect the lubrication of the spindle, bearings, ball screws and guideways; act on any abnormality immediately.
Preventive lubrication: replace lubricants on schedule and keep the lubrication system unobstructed to minimize fatigue wear.
Accuracy monitoring: use laser interferometers or ball-bar systems monthly to measure geometric errors and compensate for ball-screw backlash or guideway straightness in time.
Electrical health checks: periodically examine cables, relays and cooling fans to prevent hidden aging caused by overheating.
Data monitoring: onboard sensors record spindle current, vibration and temperature; cloud-based analytics predict early bearing or tool failures.
Why prevention matters
• Ensures machining consistency: eliminating micron-level error sources keeps batch dimensions stable and reduces scrap.
• Extends machine life: preventing micro-cracks from growing can prolong overall life by more than 20 %.
• Reduces unplanned downtime: planned maintenance replaces emergency repairs, increasing overall equipment effectiveness (OEE) by 10 % or more.
• Cuts total cost: lower spare-parts inventory, labor and lost-production costs can save tens of thousands of dollars per machine annually.
• Enhances brand reputation: consistent on-time, defect-free deliveries strengthen customer trust and secure future orders.
Optimizing cycle time on turn-mill machining centers is crucial for boosting productivity and reducing costs. It requires a systematic approach addressing machine tools, cutting tools, processes, programming, fixtures, and material flow.
Ensure Geometric Accuracy
Swiss-type lathes process long, slender workpieces with multi-axis synchronization. A bed inclination of only 0.02 mm/m creates a “slope error” along the Z-axis, tilting the tool relative to the part centerline. This results in taper on outer diameters and asymmetric thread profiles. Periodic re-verification and re-leveling restore overall geometric accuracy to factory standards, guaranteeing consistent dimensions during extended production runs.
Extend Guideway and Ball-Screw Life
When the machine is not level, guideways carry uneven loads and lubricant films become discontinuous, accelerating localized wear and causing stick-slip or vibration. After re-leveling with shims or wedges, load distribution evens out, reducing guideway scoring and ball-screw side-loading. Service life typically improves by more than 20 %.
Suppress Thermal Growth and Vibration
A tilted bed leads to asymmetric coolant and lubricant flow, generating thermal gradients. Subsequent expansion further amplifies geometric errors. Re-verifying level, combined with thermal compensation, produces a more uniform temperature rise and reduces scrap caused by thermal drift. Additionally, a level bed raises natural frequencies, cutting chatter amplitude and improving surface finish by half to one full grade.
Chinese-built Swiss-type lathes have moved beyond the “low-cost substitute” label to become the “value leader” for overseas users. On the cost side, machines of comparable specification are priced well below those of traditional leading brands, and ongoing maintenance costs amount to only a fraction, dramatically lowering the entry barrier for small-to-medium job shops in Europe and North America. Lead time is equally compelling: major domestic OEMs can ship standard models within weeks, and special configurations follow shortly thereafter. When urgent orders arise from the electric-vehicle or medical-device sectors, Chinese production lines consistently deliver rapid responses.
Intelligence is on par with top-tier global standards. Machines routinely feature thermal compensation, AI-based tool-life prediction, and cloud-enabled remote diagnostics. Mean time between failures is long, and fully open data interfaces simplify secondary development for end users. Complementing this is a worldwide service network: Chinese manufacturers maintain parts depots and resident field engineers across the Americas, Europe, and Southeast Asia, enabling on-site support often within a single day, whereas legacy brands usually require factory returns measured in weeks.
1. Quick Troubleshooting Steps
Check the clamping pressure: Ensure the pressure plate or collet applies even force; too much or too little pressure will jam the bar. Adjust the pneumatic or hydraulic release mechanism accordingly.
Align the material path: Verify that the bar feeder, guide bushing, and spindle centers are collinear; any offset will cause the bar to twist or wedge.
Inspect belts and rollers: Belts must be tensioned correctly—loose belts slip, over-tight belts bind. Replace worn rollers immediately.
Lubricate moving parts: Clean and grease the eccentric shaft, release cam, and pusher fingers; lack of lubrication is a common cause of seizure.
I. Installation Guidelines for Swiss-Type Lathe Bed
1. Foundation Preparation
Floor Requirements: The Swiss lathe bed must be installed on a solid, level concrete foundation to prevent machining inaccuracies caused by ground settlement or vibration.
Load Capacity: The foundation must support the machine’s weight and dynamic cutting forces to avoid deformation affecting spindle and guide bushing alignment.
Vibration Isolation: If the workshop has vibration sources (e.g., punch presses, forging machines), anti-vibration pads or isolation trenches are recommended to enhance CNC machine stability.
Summary
Ball screws are the physical enablers of Swiss-type lathes across five critical dimensions:
Micron-level positioning for complex micro-structures;
High-speed rigidity supporting synchronized multi-axis cutting;
Active thermal control ensuring batch consistency;
Ultra-wear-resistant design enabling maintenance-free operation for 10+ years.
Their performance defines the precision ceiling of Swiss-type machining – truly "invisible champions" in precision transmission.