Linear Module Screw Drive is ready for delivery to Singapore.
The working principle of linear module is divided into two parts: one is screw drive, and the other is synchronous belt drive. The principles of the two transmission modules will be explained in detail.
1.Linear module screw drive
Structure diagram of linear module screw drive.
The screw rod drives. The servo motor rotates left and right. The servo motor and the ball screw rod are connected together through a precise coupling, so that the screw rod rotates, and the screw rod changes the rotating motion into a linear motion through the nut. Due to the precise cooperation between the servo motor and the ball screw rod, the sliding seat installed on the nut is always driven to make a precise linear motion on the linear guide rail, and several precise components are matched together, For accurate positioning.
(the positioning accuracy of the screw module is high. Screw rods of different accuracy levels can be selected to meet the accuracy requirements of different occasions. In addition, the thrust converted by the servo motor through the ball screw is relatively large, which can meet many occasions with high thrust. However, the screw module also has a problem, that is, the screw rod has a length limit and cannot exceed the range of slenderness ratio, so the travel will not be too long).
Structure diagram of linear module of synchronous belt drive
The synchronous belt drives. The same driving mode is that the servo motor provides rotating power. However, unlike the screw linear module, there is no screw rod and nut inside. Instead, the synchronous wheel and synchronous belt are used. This is relatively simple. The synchronous wheel is installed on the shaft end of the servo motor, and the servo motor rotates to drive the synchronous wheel to rotate.
The synchronous belt and gear engage, and the synchronous belt is fixed on the sliding seat, The sliding seat will make corresponding linear motion on the linear guide rail. Control the forward and reverse rotation and stop of the servo motor for positioning.
(the positioning accuracy of the linear module of the synchronous belt is slightly worse than that of the screw rod type, and the good accuracy can generally be controlled within ± 0.04mm. However, a very important advantage of the synchronous belt is that it has no limit on the slenderness ratio, and the theoretical stroke can be very long. It is very suitable for use in some occasions where the stroke is required to be relatively long).