What makes a good quality laser die cutting machine?

Laser die-cutting machines and steel rule bending machines essentially operate through mechanical transmission, with cutting and steel rule bending tasks completed via a CNC control system. This necessitates exceptionally high precision requirements for the mounting surfaces of transmission system components such as lead screws, guide rails, and servo motors to ensure high precision during both the transmission and cutting processes.
AOLANG LASER‘s machine frame supplier is an in-house investment partner, in which we hold a part of the shares. The supplier operates its own Japanese-imported large gantry milling machine and an additional smaller gantry milling machine. The two sets of gantry milling machines ensure efficient frame production. The imported gantry milling machine effectively guarantees the precision of all frame mounting surfaces of our laser die cutting machines and related equipment.
Additionally, the frames for our high-power laser die-cutting machine series—the AL-1500H, AL-2000H, and AL-2500H series—undergo high-temperature annealing to eliminate stress, ensuring the machine’s long-term stability and preventing deformation.

A high-precision inspection marble platform is an essential tool in the equipment manufacturing industry. It serves as a reference plane for precise measurements. Marble platforms naturally possess high planarity (up to Class 00 or higher, such as 0.003 mm/1000 mm) and extremely low microscopic unevenness, providing a reliable reference standard for all precision measurements.
It plays a particularly important role in our machine production process.

On one hand, it is used for component inspection: critical components (such as guideways, lead screws, bearing housings, and laser cutting head components) are placed on the marble platform and measured using high-precision measuring tools (such as dial indicators, electronic levels, and self-aligning instruments) or optical instruments (such as laser interferometers). The marble platform ensures the absolute stability of the measurement reference.

On the other hand, during the assembly process of core components of laser die-cutting machines (such as the bed, crossbeam, and Z-axis), the marble platform provides a rigid, non-deformable support surface and calibration reference. For example, when installing and calibrating the key linear guides (X/Y axes), the marble platform serves as the reference surface. Workers can precisely measure the straightness, parallelism, co-planarity, and perpendicularity between the guideways (using dial indicators, laser alignment instruments, etc.) on the platform.

Precision dial gauges/micrometers and gauge stands are one of the core tools in the manufacturing of die-cutting laser cutting machines and related equipment. They are primarily used for the assembly and calibration of the core components of the equipment.

            1.They are used to measure the straightness and parallelism of machine transmission components. The working principle is as follows:

• Securely attach the magnetic dial indicator stand to the machine frame’s fixed components (such as the liner guide mounting face or crossbeam).

• Position the micrometer probe vertically against the moving component to be measured (e.g., a slide block with guide rails or the side of a crossbeam).

• Manually or at low speed, drive the moving component along the entire length of the guide rail.

• Observe the range of oscillation of the micrometer pointer; its reading directly reflects the straightness error of the moving axis in the measurement direction.

            2.  Used to measure the runout value of critical rotating components(Rotating parts such as screw rods, bearings, motor shafts, and pulleys). The working principle is as follows:

• Fix the dial indicator base on a high-leveling base(such as the marble platform).

• Position the probe vertically against the cylindrical surface of the rotating component (to measure radial runout) or the end face (to measure axial runout).

• Slowly rotate the component manually.

• Observe the difference between the maximum and minimum readings of the dial indicator needle, which represents the runout value.

Why it’s so important to measure the runout of the rotating parts?  Radial runout and axial play of the lead screw directly affect the positioning accuracy and repeatability of the motion axis and may cause vibration and noise. Runout of the bearing can also be transmitted throughout the entire motor. Then affect the whole transmission system and whole machine working precision.

             3. Used to measure and help adjust the parallelism and perpendicularity between components. The working principle is as follows：

It is primarily used to ensure the perpendicularity between the X-axis and Y-axis, and the perpendicularity between the Z-axis (laser cutting head) and the workbench surface.

• Use a leveled machine bed or marble inspection platform as the reference.

• Use a dial indicator to measure the deviation of the components to be adjusted (such as the Y-axis guide rail mounting surface or cutting head mounting plate) relative to the reference surface.

• Based on the reading values, fine-tune the component positions by adjusting bolts, shims, etc., until the dial indicator readings fall within the allowable tolerance range.

This effectively ensures the verticality of the laser beam exiting the laser head, preventing issues such as high edge tilt in cut plywood or tilt in the steel rule slot after die board fully installation.