The waiting time is minimized by improving the performance of spindles in maximum speed and acceleration/deceleration.
Winding switching technology enables spindle to boost acceleration in case it is required. Depending on gear ratios and gearshift timing, vehicle performance may differ. Against this backdrop, optimal winding switching timing applies to spindles.Fundamental Technology 2. High Speed Static Pressure Spindle Technology
Static pressure spindles are structured to apply consistent pressure to bearings regardless of R.P.M. The length of the rotating part was reduced by about 210mm to significantly mitigate vibration. This technology can be effectively applied when light metal is machined at high speed or aviation parts are manufactured.Fundamental Technology 3. Lighter Aluminum Pulley
Light, coated, and durable aluminum pulleys are used to shorten the time for spindle to accelerate or decelerate and save energy.
Shorter time for the spindle to reach its highest speed
(Unit : seconds, PUMA 2100 8 inch spindle)
Location and speed can be easily controlled by reducing the friction of the guideway that controls spindle travel, together with ball screws.
All elements such as groove shape, depth, width, lubrication type, and materials, are optimized to reduce guideway friction. Ultimately, master workers carefully control the process.Fundamental Technology 2. Air Semi-floating Technology
Air and oil are mixed and provided to slightly float columns and thereby reduce friction and heat. Moreover, by using Doosan’s unique semi-floating sliding plate and optimal pressure tests, maintenance costs including lubricant consumption are curtailed.Fundamental Technology 3. No Turcite Guideway
Turcite is usually used because it can be easily machined and reduce friction. However, several issues such as excoriated casting surface and turcite were raised, depending on the characteristics of some machines. For such machines, Doosan decided to directly machine casting surface, thereby resolving the issues and enhancing rigidity and durability.
Doosan’s unique modeling technology ensures optimal thermal stability by phase in the whole process from initial design to finished products.
By identifying the effects of temperature changes in the working environment on machine tools through simulation modeling, Doosan designs the least-affected structures. As a result, machining quality can be consistently maintained in diverse working environments.Fundamental Technology 2. Spindle/Feeding System Thermal Displacement Reduction Technology
Cooling paths inside spindles and low-heat screws are used to minimize heat generation and control the heat for thermal displacement-sensitive spindles and feeding systems. As a result, machining quality can be consistently maintained.Fundamental Technology 3. Finished Product Thermal Stream Analysis
The modeling technology is designed to analyze heat flow among units and its effects after product assembly is finished. As a result, units and cooling systems can be organized and installed, respectively, in an optimized way.
The function is not provided via CNC itself. However, smart operation systems, in connection with machining programming, machine operation, and maintenance, are delivered for easier and optimized operation.
Code List : The meaning of G and M codes in the process of programming can be easily checked.
Engraving : When carving letters on the surface of materials, the required program can also be automatically written.
Tool load monitoring : Tool damage can be prevented in advance by analyzing the load of machines in operation.
Tool management : The status of machines is displayed, making it possible to easily manage information.
APC(Auto Pallet Changer) schedule : Operation by pallet can be designated in advance.
Alarm guidance : The causes of alarms issued while using machines and related solutions are displayed on the NC screen.
Sensor status monitor : The status of standard sensors and solenoids can be checked.
Machines can be monitored and operated remotely.
Via LAN installed on machines, machine operation information including alarms is sent to the user’s smart phone. The user can also send, edit , and save program files.Fundamental Technology 2. Alarm and Diagnosis
The causes of malfunctions and related solutions are provided to enable the operator to promptly take actions. When to check and replace machines is also delivered periodically.Fundamental Technology 3. Doowin
The operation status of all machines in the factory can be checked via the PC. (ex. Checking/revising of machining programs; the status of machine tool alarms; operation rates; checking of machined products via cameras, etc.)