CNC Steel Structure Plate Drilling Machine
Control steel structure plate drilling machine is a large-scale specialized CNC equipment designed specifically for efficient and high-precision hole processing of large steel structure plates and sections (such as H-beams and angle steels). It is widely used in manufacturing fields such as building bridges, power towers, and heavy-duty steel structure factories, and is one of the core equipment for modern construction industrialization (prefabricated buildings) and heavy equipment manufacturing. Core positioning: It replaces traditional and outdated manual marking and radial drilling methods to achieve batch, automated, and standardized production of steel structure connection holes, greatly improving production efficiency and processing accuracy. It is a key equipment for the transformation and upgrading of steel structure manufacturing enterprises.
- Product Introduction
Analysis of control system of CNC Steel Structure Plate Drilling Machine
一. Core Structure and Technical Characteristics
1. Heavy duty rigid structure:
Bed and gantry: A large box structure welded from high-quality steel plates, optimized through finite element analysis (FEA) and subjected to vibration aging treatment to eliminate internal stress, ensuring high rigidity and stability of the machine tool during machining, and resisting cutting deformation.
Sturdy Longmen: The Longmen frame structure is stable, providing strong support for drilling.
2. Efficient multi axis drilling system:
Core feature: Usually equipped with multiple drilling power heads (such as 4-axis, 6-axis, 8-axis or more), it can simultaneously process a row of holes at once, with efficiency several times higher than ordinary single head drilling machines.
Power head: Adopting high torque servo motor or hydraulic drive, specially designed for drilling thick plates of steel structures, with high output torque and high reliability.
Speed regulation function: It can automatically adjust the spindle speed and feed rate according to the thickness and aperture of the board.
3. Specialized clamping and positioning system:
Hydraulic clamping: Multiple hydraulic clamps are equipped on both sides of the workbench, which can quickly and strongly press the steel plate, prevent displacement during processing, and counteract the huge torque generated during drilling.
Automatic centering/positioning: Optional lateral tightening device can be equipped to ensure that the plate is parallel to the machine tool guide rail and ensure the accuracy of the hole position.
4. High precision transmission and positioning:
Drive system: The gantry (or drilling head) adopts high-precision gear rack transmission (suitable for long stroke) or ball screw transmission on the X-axis (length direction), driven by servo motors for accurate positioning.
Y-axis positioning: The drilling head moves quickly along the Y-axis (width direction) to locate different drilling lines.
Guide rail: Adopting heavy-duty linear guide rail to ensure long-term accuracy and durability.
5. Advanced CNC system:
Equipped with a user-friendly CNC system, it can directly import CAD graphic files such as DXF and DWG, or manually program to automatically generate machining paths.
Equipped with automatic discharge function, optimizing the utilization rate of sheet metal.
Real time monitoring of machining status, such as drill bit wear and fracture detection, and equipped with safety interlock function.
6. Automation and auxiliary systems:
Automatic chip removal: Equipped with a spiral chip removal device or chain plate chip removal machine, it automatically collects steel chips and keeps the working environment clean.
Cooling system: A high flow coolant system used to cool the drill bit and flush away chips, extending the life of the drill bit.
Dust collection system (optional): Collect dust generated by drilling, in compliance with environmental requirements.
The specific requirements are as follows:
1) Stroke control in the control system of the CNC Steel Structure Plate Drilling Machine, the stroke of each axis is proportional to the total rotation angle of the stepping motor. As long as the total rotation angle of the stepping motor is controlled, the stroke of the workbench can be controlled. Therefore, the number of pulses output by the PLC can be determined according to the displacement of each axis.
2) Feed speed control: the feed speed of the workbench depends on the rotation speed of the stepping motor, and the rotation speed of the stepping motor depends on the input pulse frequency. Therefore, the pulse frequency output by the PLC can be determined according to the feed speed required by the process in the CNC machining.
3) Feed direction control feed direction control is the steering control of the stepping motor. The steering of the stepping motor can be changed by changing the energization sequence of each winding of the stepping motor. In practical application, the stepper motor driver can receive the steering selection signal from the PLC. This input signal can be regarded as a switching signal, which can easily control the steering of the stepper motor through PLC programming.
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