Luoyang Yujie Industry&Trade Co., Ltd is one of the most experienced manufacturers and suppliers of spindle gearbox in China. Please feel free to buy cheap spindle gearbox for sale here from our factory. All customized products are with high quality and competitive price.
Products Description
The spindle gearbox is the core power transmission and speed-changing device in metal-cutting machine tools, such as boring and milling machines. Using internal gears and gear shafts, it decelerates, accelerates, or shifts the fixed motor speed and power, delivering varying torque and speed to the spindle to adapt to the cutting parameters required by different materials, tools, and roughing/finishing processes.
Main functions
The core contradiction in machine tool processing lies in the relatively fixed motor speed, while the actual cutting requirements vary significantly depending on the processing scenario: Roughing requires low speed and high torque to prevent tool breakage, while finishing requires high speed and low torque to ensure machining accuracy and surface smoothness. Hard material processing requires lower speed to protect the tool, while soft material processing requires higher speed to improve efficiency. The spindle gearbox is the key bridge connecting these two. By switching the internal transmission mechanism, it converts the fixed power of the motor into adjustable speed and torque to meet various cutting requirements. This power is then transmitted to the spindle, driving the workpiece (such as a boring machine) or the tool (such as a milling machine) to rotate, achieving a precise match between "cutting requirements" and "power output."
key parts
The function of the spindle gearbox relies on the close coordination and orderly cooperation of six key components: first, the power input shaft is connected to the main motor of the machine tool, receiving the original power and introducing it into the gearbox; the gear set, as the core speed-changing element, completes the on-demand conversion of speed and torque through the precise engagement of gears with different numbers of teeth (such as the speed-increasing mode of "large gear with small gear" and the speed-decreasing mode of "small gear with large gear");
the shift mechanism (common forms include manual shift fork, hydraulic clutch, and electromagnetic clutch) is responsible for controlling the engagement and separation of different gears, thereby realizing the "shifting" action and switching to the target transmission ratio; then, the spindle output shaft stably transmits the speed-adjusted power to the machine tool spindle, providing power support for subsequent processing; during the entire transmission process, lubrication/ The cooling system plays a key role in ensuring this, reducing friction and wear between gears and bearings through lubrication, while also cooling down the heat concentration problem during high-speed operation (forced lubrication is required to avoid overheating).
Finally, the housing, as the foundation of the overall structure, not only secures and protects all internal components, but also withstands various loads generated during the transmission process, ensuring the accuracy and stability of the entire transmission system and providing structural support for the reliable implementation of the gearbox function.
test
Products Description
Type |
Shifting principle |
Features |
Application scenarios |
|
Manual shift transmission |
By manually operating the "fork" or "handle", the gears are pushed to move and engage to achieve speed switching. |
Simple structure and low cost, but slow shifting and manual labor |
Ordinary lathes, economical boring and milling machines, etc. |
|
Automatic transmission |
The gear shifting mechanism is driven by hydraulic pressure, pneumatic pressure or electric motor to automatically switch gears according to preset programs or sensor signals. |
Fast shifting, high precision, continuous speed change, suitable for automated production |
CNC lathes, machining centers, large boring and milling machines, etc. |
Key Performance Indicators
The performance of the spindle gearbox directly impacts machine tool machining accuracy and efficiency. Core indicators include:
Speed Range: The ratio of the highest output speed to the lowest output speed (e.g., 1:100, meaning it can be adjusted from 10 rpm to 1000 rpm). The wider the range, the more compatible machining scenarios;
Speed Levels: The number of different output speeds (e.g., 12 or 18). The more levels, the easier it is to find the optimal cutting speed;
Transmission Accuracy: Measures factors such as gear meshing clearance and shaft runout (low accuracy can cause spindle vibration and affect machined surface finish);
Load Capacity: The maximum torque that can be tolerated (depending on the material and structure of the gears and bearings. Insufficient load capacity can lead to component damage).
Hot Tags: spindle gearbox, manufacturers, supplier, factory, customized, cheap, price, in stock, for sale, Bearing seat
