Advantages and features: The TBI ball spline SLT series is named after its appearance, with longitudinal key slots on the outer surface of the shaft, and corresponding key slots on the rotating parts that are fitted onto the shaft, which can maintain synchronous rotation with the shaft
Advantages and Characteristics:The TBI Ball Spline SLT series is named after its appearance, which has longitudinal key slots on the outer surface of the shaft and corresponding key slots on the rotating parts that are fitted onto the shaft to maintain synchronous rotation with the shaft. While rotating, some can also slide longitudinally on the shaft, such as gearbox shift gears.
TBI ball splineprocessing
TBI ball spline processing method: There are many methods for processing spline shafts. Mainly using cutting methods such as rolling, milling, and grinding, as well as plastic deformation processing methods such as cold rolling and cold rolling.
1. Rolling method: Using TBI spline shaft rolling cutters on spline shaft milling machines or hobbing machines to machine according to the unfolding method, this method has high productivity and accuracy, and is suitable for mass production.
2. Milling method: Use a specialized forming milling cutter to directly mill the tooth profile on a universal milling machine, and use a dividing head to divide the teeth and mill them one by one; If a form milling cutter is not used, two disc milling cutters can be used to mill both sides of one tooth at the same time. After milling each tooth, a disc milling cutter can be used to slightly adjust the bottom diameter. The productivity and accuracy of milling method are relatively low, mainly used for machining TBI ball spline shafts with outer diameter centering in single piece and small batch production and rough machining before quenching.
3. Grinding method: Use a formed grinding wheel to grind the spline tooth side and bottom diameter on a spline shaft grinder, suitable for processing hardened spline shafts or spline shafts with higher precision requirements, especially those centered on the inner diameter.
4. Cold play method: carried out on specialized machine tools. The two punch heads symmetrically arranged on the outer circumference of the workpiece rotate at a constant speed ratio with the indexing and axial feed of the workpiece. Every time the workpiece rotates one tooth, the forming punch wheel on the punch head strikes the tooth groove of the workpiece once. Under the continuous hammering of the high-speed and high-energy motion of the punch wheel, the surface of the workpiece undergoes plastic deformation and forms a spline. The precision of cold drawing is between milling and grinding, with an efficiency about 5 times higher than milling. Cold drawing can also improve material utilization.
Analysis of TBI Ball Spline Model
TBI Ball Spline Single Issue Model Number
TBI spline shaft cross-sectional view
The solid cross-sectional shape of the TBI ball spline SLF series is shown in the following figure. The spline shaft end is a flange type, which can exceed the groove diameter (∅ d) under the condition of pit energy. The SLF series spline is precisely ground by rolling the groove of the spline, connected to high precision, and then matched with the outer cylinder
TBI Ball Spline Hollow Shaft Sectional View
If it is necessary to reduce the weight of piping, wiring, and exhaust cargo, a hollow spline shaft can be used
The Special Features of TBI Ball Spline
The outer diameter of the spline outer cylinder is a straight cylinder type, which can be used by tapping the key in when transmitting torque, and is one of the forms with the smallest installation spaceone
TBI ball spline accuracy
accuracy class
The accuracy of ball spline is represented by the movement of the spline shaft support part by the outer diameter of the spline cylinder. It is divided into ordinary level (N), advanced level (H), and precision level (P). The testing items are shown in the following figure.
Precision specifications
Installation of TBI ball spline
Attention: Although the fixed strength in the direction of the spline shaft is not required to be very high, it should be avoided to only knock it in without fixing it
TBISLT series model size diagram
TBI-SLT series models
SLT006 SLT008 SLT010 SLT013 SLT016 SLT020 SLT025 SLT030 SLT040 SLT050