German Peiseler shaft Peiseler model Peiseler price

The Peiseler spindle is a new technology in the field of CNC machine tools that integrates the machine tool spindle with the spindle motor. Together with linear motor technology and high-speed tooling technology, it has ushered high-speed machining into a new era. The electric spindle includes the spindle itself and its accessories, such as the electric spindle, high-frequency variable frequency device, oil mist lubricator, cooling unit, built-in encoder, and tool changer. The rotor of the motor serves directly as the machine tool spindle, and the housing of the spindle unit acts as the motor frame, integrating the motor with the machine tool spindle in conjunction with other components.

Peiseler spindle structure

The electric spindle consists of a frameless motor, spindle, bearings, spindle unit housing, drive module, and cooling device. The motor rotor is integrated with the spindle using a press-fit method, and the spindle is supported by front and rear bearings. The motor stator is installed in the spindle unit housing via a cooling jacket. Spindle speed variation is controlled by the spindle drive module, while temperature rise within the spindle unit is limited by the cooling device. Speed and angular displacement sensors are installed at the rear end of the spindle, and the internal taper hole and face at the front end are used for tool installation. With the rapid development and increasing sophistication of electrical drive technologies (such as variable frequency speed control and motor vector control), the mechanical structure of the main drive system in high-speed CNC machine tools has been greatly simplified, basically eliminating belt and gear transmissions. The machine tool spindle is directly driven by an built-in motor, thereby reducing the length of the machine tool's main drive chain to zero, achieving "zero transmission" for the machine tool. This transmission structure, where the spindle motor and machine tool spindle are "combined into one," allows the spindle assembly to be relatively independent from the machine tool's transmission system and overall structure; it is also called an "electric spindle" (ElectricSpindle, Motor Spindle). Since current electric spindles mainly use AC high-frequency motors, they are also called "high-frequency spindles" (High FrequencySpindle). Due to the absence of intermediate transmission components, it is sometimes also called a "direct drive spindle" (Direct Drive Spindle).

Peiseler spindle classification

Flexible shafts are divided into 3 types: wound, universal joint, and spring type. 1) Wound flexible shaft: Composed of a wire (or steel strip) shaft, hose, and shaft connectors. The wire shaft is wound with 4 to 10 layers of high-carbon steel wire. The outermost layer is generally left-handed, and the torque is mainly borne by this layer. The direction of rotation should be such that this layer tightens (forward rotation); in reverse rotation, it can only bear about 15% of the forward torque. If the outer layer is tightly wound with thick steel wire, the bearing torque can be increased by 70 to 80%. The structure of the steel strip shaft is similar to that of the wire shaft. The hose is mostly made of formed steel strips rolled up, mainly used to store lubricant and prevent dust. Wire shaft connectors are used to connect two shafts, and hose connectors are used to connect the support parts of two shafts. Connectors are integrated with the shaft and tube through welding or threaded connections, with various connector types available. 2) Universal joint flexible shaft: Connected by many shaft joints, including ball-tube joints and yoke-and-spider joints, adaptable to shaft bending; the more joints, the greater the flexibility. 3) Spring flexible shaft: A long cylindrical helical spring with various tools attached to one end for different operations; this type of shaft does not require a hose.

Peiseler spindle advantages

The advantages of flexible shafts include easy installation, compact structure, convenient movement, and the ability to transmit motion and power over long distances. They are mostly used for high-speed, low-torque transmissions, such as driving portable sandblasters and grinders, automotive tachometers, and starting valves and switches for certain devices. However, flexible shafts have low torsional stiffness; if there are large changes in direction and significant torque fluctuations, the non-uniformity of the driven end speed is also high. Under normal conditions, the power transmitted by a flexible shaft does not exceed 5.5 kW; the torque without bending does not exceed 50 N·m, and the speed can reach 20000 rpm. During use, the speed depends on the shaft diameter and the bending radius during operation. Before use, the connectors must be securely fastened, and regular cleaning and lubrication are required. 1) The mandrel maintains a large contact area with the hole, resulting in high positioning accuracy; 2) Uses the elastic deformation of the spring collet to center and clamp the workpiece, providing high positioning accuracy; 3) The fit clearance of the positioning surface affects positioning accuracy; 4) Uses Pascal's principle to elastically deform the thin-walled sleeve for centering and clamping the workpiece, offering high positioning accuracy with coaxiality reaching 5μm; 5) Reduces clamping deformation of thin-walled sleeve workpieces, improving machining accuracy; 6) Has a positioning interference fit of 0.002mm, achieving extremely high positioning accuracy.

Weidou Intelligent Technology specializes in selling German Peiseler rotating shafts, Peiseler mandrels, Peiseler drive shafts, Peiseler crankshafts, Peiseler straight shafts, Peiseler flexible shafts, Peiseler solid shafts, Peiseler hollow shafts, Peiseler rigid shafts, Peiseler flexible shafts, Peiseler polished shafts, Peiseler stepped shafts, Peiseler spindles, Peiseler rotating mandrels, Peiseler fixed mandrels, Peiseler original German imports. We welcome customers to inquire and order.