Film stretching loading unit with position locking function

Abstract

The invention provides a film stretching loading unit with a position locking function, the film stretching loading unit comprises a substrate, a motor, a turbine worm assembly, a loading turntable, afastening clip, and a turntable positioning member; the motor is fixedly disposed on the substrate, the turbine worm assembly is rotatably fixedly disposed on the substrate, a worm is connected to anoutput shaft of an electrode, and transfers rotation outputted by the motor to a turbine, one side of the turbine is provided with a fan-shaped groove, and the vertical section of the loading turntable is same in shape as the vertical section of the fan-shaped groove, so that one end of the loading turntable can be inserted into the fan-shaped groove, the turbine can drive the loading turntable to rotate synchronously, the fastening clip fixes a film sample to be tested onto the loading turntable, so that the loading turntable can drive the film sample to rotate synchronously to pull the filmsample to turn upward and outward ; the substrate is provided with a positioning groove, and the positioning member can be inserted into the positioning groove to limit the axial rotation of the loading turntable.

Description

technical field [0001] The invention relates to the field of film material performance testing, in particular to the tensile test of soft base films. Background technique [0002] In recent years, soft-based thin film materials have been widely used in electronics, biology, aerospace, chemical and other fields due to their mature manufacturing process and excellent properties such as high flexibility and high ductility. Therefore, this structure has gradually become the focus of scholars' research. Most of the relevant work at this stage is aimed at the unidirectional loading of the membrane-based structure. However, during the service process, the membrane-based structure is often in a more complex loading environment, and the simple uniaxial load can no longer simulate its true stress. state. Therefore, in experiments and tests, the introduction of biaxial loading can make the mechanical behavior of the membrane-based structure more accurately expressed, which is very im...

AI Technical Summary

Problems solved by technology

[0005] In short, refer to figure 1 As shown, the existing film stretching and loading equipment has the following problems: a. translational stretching causes the overall size of the equipment to be too large, and it is difficult to place it on the observation platform of the microscope; b. the cylindrical turntable of the disclosed rotating stretching device The size is large, and it is difficult to keep the contact surface of the fixed test piece horizontal during the process of fixing and installing the test piece, which is mainly operated by experience; c. It is difficult to clamp the test piece after it is fixed; d. For different elastic modulus and thickness to be tested In the same way, it is necessary to replace the turntable with different diameters as needed, and the operation process is cumbersome and time-consuming

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