The electronic tensile testing machine is mainly composed of motor, sensor, screw, column, fixture, etc., and the screw is also an important component, which will affect the accuracy of the whole tensile testing machine. Our common tensile test screw is mainly divided into ball screw and screw screw. The screw screw is also called trapezoidal screw. It is sliding friction, low efficiency and low precision, but it has good rigidity and good weight load. The meshing clearance of the ball screw drive pair can be adjusted arbitrarily to achieve an ideal fit accuracy. Therefore, when we purchase the tensile testing machine, we can purchase a ball screw with a high configuration, and the clearance is small and the precision is high.

The electronic tensile testing machine ball screw has the following 7 major advantages:
1. High accuracy: The ball screw is made of ball movement, the starting torque is small, and it does not show the sliding motion, etc., and can complete accurate micro-feeding.
2. High-speed transmission can be completed: the ball screw can achieve high-speed feed (motion) because of high motion power and low heat generation.
3. High power: saving energy Because there are many balls between the screw shaft of the ball screw pair and the screw nut, the movement power is high. In this way, the same large load is driven, and the ball screw can be used to use a smaller driving power, which can reduce the cost and save the energy pole.
4. Cost-effective: Ball screws are usually slightly more expensive, but they are considered to be extremely high in terms of transmission speed, service life, accuracy and other characteristics.
5. Long service life: The surface damage caused by tumbling friction is small, so the ball screw has a high maintenance life when the conditions such as cleaning and smoothness are met.
6. No backlash, high rigidity: the ball screw can be pressurized, because the pre-stress can make the axial gap reach a negative value, and thus get higher rigidity. (The pressure is applied to the balls in the ball screw. When used in mechanical equipment, etc., the rigidity of the wire mother can be enhanced because of the repulsive force of the balls).

7. No self-locking: Self-locking is usually inversely proportional to the transmission power. The higher the transmission power, the smaller the self-locking property. Therefore, the ball screw has almost no self-locking property.

Jiangsu Tianhui Testing Machinery Co., Ltd. is a professional service manufacturer engaged in material testing and testing equipment. It integrates R&D, design, production, sales and service, and provides solutions for material testing and finished product testing.

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