Pendulum impact machine low-temperature automatic material feeding centring device and method thereof

Abstract

The invention provides a low temperature automatic loading centering device for pendulum impact tester including a pneumatic robot, a stepping motor, an anvil, a low temperature case, a robot support, a transmission shaft, an exterior electric program controlling system, a sample. The invention is characterized in that: a sample positioning disk, a sample notch positioning seat, a low temperature case cover, a sample aligning device are included; the whole process is automatized through improving the structure, so the invention has the advantages as following: 1. a large amount of labor cost is saved and the working efficiency is increased; 2. operators do not have to get close to low temperature environment thus avoiding finger frostbite and increasing safety factor; 3. circumstance that manually positioning a sample on an anvil is eliminated, thus avoiding emergency risks that a pendulum falls from high altitude and crush injuries fingers, the safety factor is further increased; 4. the procedure of sample loading and centering can be assured finished within allowable time stated by national standards.

Description

technical field [0001] The invention relates to a pendulum impact testing machine, in particular to a low-temperature automatic feeding and centering device and method for the pendulum impact testing machine. Background technique [0002] When the traditional pendulum impact testing machine is used for low temperature test, it usually adopts manual method, that is, take out the sample to be tested at constant temperature from the low temperature box with the sample fixture, put it on the impact anvil, and then carry out the impact process. [0003] The disadvantages of this method for batch testing are: [0004] 1. High labor intensity; [0005] 2. Short-distance exposure to low-temperature environments can easily cause frostbite fingers; [0006] 3. When the sample is placed on the anvil, in case the pendulum loses control and falls from a high place and hurts the fingers; [0007] 4. Manually take the sample and send it to the anvil to place the sample in the center and...

AI Technical Summary

Problems solved by technology

[0004] 1. High labor intensity;

[0005] 2. Short-distance exposure to low-temperature environments can easily cause frostbite fingers;

[0006] 3. When the sample is placed on the anvil, in case the pendulum loses control and falls from a high place and hurts the fingers;

[0007] 4. Manually take the sample and send it to the anvil to place the sample in the center and then start impacting the sample, that is, the time it takes for the sample to leave the low temperature box to complete the impact of the sample cannot guarantee the time limit stipulated by the national standard

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