Automatic sample loading mechanical arm for three-dimensional space of tensile testing machine

Abstract

The invention discloses an automatic sample loading mechanical arm for a three-dimensional space of a tensile testing machine. A transverse moving electric cylinder of the mechanical arm is arranged on a transverse supporting plate, a vertical supporting plate is perpendicularly arranged on a sliding block of the transverse moving electric cylinder, and a lifting electric cylinder and a lifting guide rail are arranged on the vertical supporting plate. A lifting supporting plate is arranged on the lifting guide rail and moves along the lifting guide rail. A telescopic air cylinder is arranged on the side face of the lifting supporting plate, an installation plate is arranged on the end face of the telescopic air cylinder, and a rotating air cylinder and a clamping air cylinder are arranged on the front end face and the rear end face of the installation plate respectively. A clamping frame is arranged at the front end of the clamping air cylinder, two clamping arms of a clamp are hinged to the front end of the clamping frame, a pull rod is arranged in the clamping frame and is hinged to the rear ends of the two clamping arms, the clamping air cylinder drives the pull rod to move back and forth, and the rotating air cylinder drives the clamping air cylinder and the clamping frame to rotate. The mechanical arm is suitable for the whole process of a sample test of the tensile testing machine, manual operation is not needed in sample sending of the tensile testing machine, the sample sending accuracy is effectively improved, and the repeated accuracy of the sample test is ensured.

Description

technical field [0001] The invention relates to a three-dimensional space automatic sample loading manipulator of a tensile testing machine. Background technique [0002] Tensile testing machines are mainly used in various tests such as tension, compression, bending, shearing, peeling, tearing, and two-point extension of metal and non-metallic materials. Generally, the sample delivery of tensile testing machines is manually operated. It is to manually take the sample, and then put it into the upper and lower chucks of the testing machine for centering and alignment, manually observe whether the clamping position is appropriate, etc., and manually judge whether the clamping of the sample is skewed. However, manual sample delivery is likely to cause sample clamping deflection, and the repeatability of the sample test cannot be guaranteed, which seriously affects the test quality of the sample. At the same time, the requirements for the operator are extremely high, which reduce...

AI Technical Summary

Problems solved by technology

However, manual sample delivery is likely to cause sample clamping deflection, and the repeatability of the sample test cannot be guaranteed, which seriously affects the test quality of the sample. At the same time, the requirements for the operator are extremely high, which reduces the efficiency of the sample test.

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