Technical article on CNC drilling machines

How to Maintain the Stability of CNC Drilling and Tapping Machine Performance?

2025-09-05

I. Equipment Installation: Laying a “Foundation” for Stability 1. Precise Positioning: A Millimeter-Level Installation Philosophy The installation of a CNC drilling and tapping machine is analogous to constructing a high-rise building—only with a solid foundation can stable operation be achieved afterward. During installation, operations must strictly follow the manufacturer’s provided installation manual, as this is the first step to ensuring stable equipment performance. Among all requirements, controlling the levelness of the base is crucial, with the allowable error limited to ≤0.05mm per meter. To put this in perspective: it is equivalent to ensuring the error on a 1-meter-long straightedge does not exceed half the thickness of a human hair. Such strict standards are intended to prevent vibration or displacement caused by an uneven base during equipment operation. The tightening torque of anchor bolts also cannot be overlooked. Anchor bolts of different specifications have distinct tightening torque standards. For instance, the common M12 anchor bolt typically requires a tightening torque ranging from 40 to 100 N·m. In practical operations, tools such as torque wrenches or electric wrenches should be used, and bolts should be tightened in a clockwise sequence starting from the center and moving outward. This ensures uniform pre-tightening force for each bolt, avoiding base deformation (and subsequent impacts on equipment stability) caused by uneven stress. Take the patent for a guided feeding tapping machine filed by Taixing Longyi Terminal Co., Ltd. as an example. This patent features a circular equidistant feeding base design combined with a high-precision positioning mechanism, which effectively reduces the risk of workpiece displacement during installation. In actual processing, it ensures that the axial perpendicularity error during tapping is <0.03mm, significantly improving processing accuracy and stability. This fully demonstrates the importance of precise positioning in equipment installation—only by controlling installation accuracy at the source can a…

How to Further Improve the Machining Efficiency of CNC Drilling Machines

2025-08-28

　　I. Hardware Upgrading: Solidifying the Physical Foundation for Efficient Machining 　　Cooling System Optimization: Resolving Thermal Machining Bottlenecks with Circulating Water Cooling 　　During the high-intensity operation of CNC drilling machines, heat acts as a hidden “efficiency killer,” silently eroding machining precision and tool lifespan. Traditional cooling methods are like stagnant water, unable to cope with the massive heat generated during high-speed drilling. However, Jinan Liaoyuan CNC’s patented eco-friendly water cooling technology (Publication No. CN 119819960 A) is like a timely rain, offering a brand-new solution to the bottleneck of thermal machining. 　　This technology uses a gear motor to drive a rotating shell, stirring the water in the cooling container as if by an invisible hand, creating a circular flow state of “upward circulation at the edges and convergence at the inner side.” Imagine the drill bit moving like it’s cutting through a rushing river— the machining area is fully immersed in the circulating coolant, quickly dissipating heat. Compared with traditional static water cooling, this dynamic cooling method delivers immediate temperature reduction effects, lowering the drill bit temperature by 30%-40%. Tool wear and workpiece deformation caused by high temperatures are effectively curbed, and the measured machining efficiency has increased by 15%-20%. Especially when machining difficult-to-process materials such as stainless steel and titanium alloys, continuous drilling is no longer a challenge, and both machining precision and efficiency are strongly guaranteed. 　　Fixture Innovation: High-Precision Clamping to Eliminate “Hidden Machining Losses” 　　If a CNC drilling machine is compared to a skilled craftsman, then the fixture is their right-hand man. A high-quality fixture not only firmly secures the workpiece but also supports efficient machining. Qidong Yuanhua Machinery’s patented CNC drilling machine fixture (Authorization Announcement No. CN 222710884 U) is undoubtedly a major innovation in the field of fixtures. 　　This fixture uses a servo electric cylinder to…

Do you know the key advantages of the Domy drilling and tapping machine?

2025-08-15

　　In the wave of intelligent upgrading in manufacturing, the Domy drilling and tapping machine has emerged as a core processing equipment in industries such as electronics, automotive, and precision machinery, thanks to its outstanding technical capabilities and precise market positioning. Its advantages are not only reflected in its hardware configuration but also贯穿于 throughout the entire service process from R&D to after-sales support. 　　1. Micron-level precision ensures quality 　　Domino drilling and tapping machines utilize an imported American API laser interferometer for whole-machine precision compensation, with repeat positioning accuracy controlled within ±0.02mm. The combination of Taiwan-imported HIWIN ball screws and guide rails with servo spindle motors ensures stability during high-speed movement, making them particularly suitable for high-precision processing scenarios such as micro-holes in medical implants and heat sinks for 5G base stations. For example, in the 3C industry, when processing metal frames for smartphones, it can achieve high-efficiency operation at 500 holes per hour, with hole diameter errors less than 0.01mm. 　　2. Efficient composite processing revolutionizes traditional methods 　　Addressing the challenges of processing thin plates and tubes, Domy has pioneered a thermal drilling technology. Using a tungsten carbide alloy drill bit rotating at high speed to soften the metal through heat, it simultaneously forms a sleeve structure, enabling high-strength connections without secondary welding. The dual-head, dual-spindle design seamlessly integrates drilling and tapping processes, eliminating tool change time and boosting processing efficiency by over 3 times compared to traditional equipment. The open workbench supports multi-station cyclic processing, allowing operators to manage 3-5 machines simultaneously, reducing labor costs by 60%. 　　3. Intelligent Systems Lead Industry Trends 　　Equipped with an IoT module, Domy’s drilling and tapping machine can real-time collect data such as spindle vibration and torque, using AI algorithms to predict tool wear and automatically adjust cutting parameters. When a drill bit fracture is…

High-precision visual four-axis CNC drilling machine

2025-08-08

DNC-630HD N4(R1) CCD High-Precision Visual Four-Axis CNC Drilling Machine, equipped with a CCD visual positioning system for high-speed micro-hole drilling, specifically designed for micro-hole processing of shaft-type products. It features an effective processing travel of X-axis 400 mm × Y-axis 300 mm × Z-axis 200 mm × A-axis rotation 360 degrees, making it suitable for products requiring multi-angle automatic indexing and automatic positioning drilling. 　　The CNC system adopts the Taiwan Delta brand, paired with the same brand’s absolute value servo motors, and optionally equipped with the Delta CCD industrial vision system. The CCD automatically scans and corrects the relative position of the product, calculates the values, and automatically inputs them into the machine tool coordinates, enabling precise processing at multiple angles to meet customer automation production requirements. 　　The fourth axis uses a harmonic servo rotary table, paired with a pneumatic chuck, to achieve automatic and rapid clamping of workpieces. This coordinates with the robotic arm’s loading and unloading cycle, ensuring both convenience and processing accuracy. The spindle uses a high-speed, high-precision spindle with a speed of 60,000 RPM, not only improving processing efficiency but also effectively protecting tool wear. 　　The linear tool magazine holds four tools and supports automatic tool changing, enabling multiple machining operations to be completed with a single setup. The machine’s ball screws and guideways are from the Taiwanese brand HIWIN, ensuring excellent precision retention. Automatic lubrication pumps are installed on all drive shafts, with the system dispensing oil at set intervals and quantities, eliminating the need for manual maintenance.

Important Notes for the Installation and Commissioning of CNC Drilling Machines

2025-08-04

　　During the installation and commissioning of CNC drilling machines, strict adherence to standard operating procedures is essential to ensure stable equipment performance and safe operation. The following are specific precautions to be observed: 　　Installation Phase 　　Foundation installation must be strictly controlled. The bearing capacity of the foundation must meet the equipment’s parameter requirements, with flatness deviation controlled within 0.1 mm/m. After the equipment is positioned, use a leveling instrument to inspect the horizontal and vertical directions of the workbench surface. Adjust the shims to achieve a horizontal accuracy of 0.02mm/m. Simultaneously, use a square ruler to verify the verticality between the columns and the workbench, ensuring an error of ≤0.03mm/1000mm. 　　Electrical system connections must be standardized. The power supply voltage must be stable within ±5% of the rated value, with a frequency deviation not exceeding ±1Hz. The grounding resistance should be less than 4Ω. When wiring, distinguish between power lines and signal lines to avoid cross interference. Cable joints must be securely crimped and properly insulated. After connection, use a multimeter to test continuity and insulation resistance (≥1MΩ). 　　Mechanical component inspections must not be overlooked. Check the preload of all fastening bolts and tighten them using a torque wrench as specified in the manual. Moving components such as guide rails and lead screws must be cleaned and protected. Inspect the lubrication system, add the specified type of lubricating oil, ensure the oil passages are unobstructed, and confirm that safety components such as limit switches and emergency stop buttons function reliably. 　　Commissioning phase 　　Empty running tests must be conducted in stages. First, perform point-to-point operations on each axis to check if the movement direction aligns with the instructions and if speed adjustments are smooth. Then conduct continuous operation to observe if any components produce abnormal noises or vibrations, and if temperature…

Why is Guangdong Domi recommended for purchasing CNC flow drilling machines?

2025-07-30

　　When purchasing CNC flow drilling machines, we recommend Guangdong Domi, primarily based on the following core advantages: 　　1. Technological innovation and outstanding product performance 　　Seamless integration of dual-axis dual-drill heads 　　Domi CNC flow drilling machines feature a unique dual-head dual-spindle structure, enabling drilling and tapping operations to be completed continuously on the same machine without tool changes, resulting in a 30% or higher increase in processing efficiency compared to traditional equipment. For example, the DNC-3030DT model can achieve fully automated processing through CNC system parameter settings, with a processing stroke of up to 3 meters, supporting continuous operation of long profiles. 　　High Precision and Long-Life Design 　　The equipment is standard-equipped with Taiwan-made precision ball screws (precision of 0.01mm), with a lifespan of up to 8-10 years, and repeat positioning accuracy of ≤0.02mm, far exceeding industry averages. This design not only ensures the processing quality of thin-walled workpieces (such as 1.5mm-thick stainless steel tubes) but also reduces maintenance costs caused by equipment wear. 　　Multi-process compatibility and energy efficiency 　　The equipment integrates a thermal melting heat dissipation device, supporting both high-temperature friction forming thermal melting drilling (replacing traditional rivet nut processes) and switching to conventional twist drill drilling without hardware replacement, adapting to diverse processing requirements. Compared to traditional processes, hot-melt drilling technology can save over 30% in material costs and produces no chips, meeting environmental requirements. 　　II. Industry Experience and Market Validation 　　Deep Application Across Multiple Fields 　　Domai equipment has been widely adopted in industries such as automotive manufacturing (e.g., electric vehicle frames for brands like Aima and Yadea), office furniture (cases involving Sino-US joint ventures), and hardware processing, particularly excelling in the processing of thin-walled metal parts. For example, a furniture company replaced the rivet nut process with a CNC flow drilling machine, achieving a 50% increase in efficiency and…

micro-hole high-speed drilling machine equipped with a CCD visual positioning system

2025-07-17

　　This is a micro-hole high-speed drilling machine equipped with a CCD visual positioning system, which is specially designed for micro-hole processing of shaft products. The effective processing stroke is X-axis 400*Y-axis 300*Z-axis 200mm*A-axis rotation 360 degrees, which is suitable for products that require multi-angle automatic indexing and automatic positioning drilling. 　　The CNC system adopts the Taiwan Delta brand, with the same brand absolute value servo motor, and the Delta CCD industrial vision system is optional. The relative position of the product is automatically scanned and corrected by CCD, and the numerical value is automatically entered into the machine tool coordinates after calculation, so that the product can be accurately processed at multiple angles to meet the customer’s automated production. 　　The fourth axis uses a harmonic servo turntable and is equipped with a pneumatic chuck to achieve automatic and rapid clamping of the workpiece, and cooperates with the robot loading and unloading rhythm, which is convenient and fast while ensuring processing accuracy. The spindle adopts a 60,000-rpm high-speed and high-precision spindle, which not only has high processing efficiency, but also has a good guarantee for tool wear. 　　The straight-row tool magazine has 4 tools in total, supports automatic tool change, and can complete multiple processes with one clamping. 　　The screw guide rails of the whole machine are made of Taiwan Hiwin brand, with good precision retention. Each transmission shaft is equipped with an automatic lubricating oil pump, and the system is lubricated regularly and quantitatively, without manual maintenance. 　　Before the equipment leaves the factory, the whole machine is tested for accuracy with an API laser laser instrument imported from the United States and compensated. After compensation, the accuracy reaches 0.01mm. The equipment is delivered to your door, and free door-to-door installation, commissioning and training are provided.