Reliability testing system for controllable metal test block stress state
A reliability and test block technology, applied in the direction of using stable torsion to test the strength of materials, using stable tension/pressure to test the strength of materials, measuring devices, etc., can solve problems such as reliability reduction
Active Publication Date: 2017-06-13
XIHUA UNIV
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Problems solved by technology
When working, these components are subjected to repeated working loads, which will inevitably lead to a decrease in reliability.
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[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0022] Such as Figure 1 to Figure 4 As shown, a reliability testing system for the stress state of a controllable metal test block includes an industrial computer 1, a test work platform 2, a strain gauge 3, a speed servo motor 4 and a torque servo motor 5; the strain gauge 3, the speed servo The motor 4 and the torque servo motor 5 are connected to the industrial computer 1;
[0023] The test working platform 2 includes a platform base 2-1, a mobile platform 2-2 and a test block base 2-3, and the lower part of the platform base 2-1 is provided with a "凵" shaped groove 2-4, and the "凵" shaped groove Mounting holes 2-5 are provided on both sides of 2-4, and ball screw rods 2-6 and guide rods 2-7 are installed, and the mobile platform 2-2 passes through threaded holes (not shown in the figure) and guide holes 2-8 Installed on the ball screw 2-6 and the guide...
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The invention discloses a reliability testing system for a controllable metal test block stress state. The reliability testing system comprises an industrial personal computer, a testing working platform, a strain gage, a rotation speed servo motor and a torque servo motor, wherein the testing working platform comprises a platform base, a moving platform and a test block base; a ball screw and a guide rod are mounted at the lower part of the platform base; the moving platform is mounted on the ball screw and the guide rod through threaded holes and a guide hole; the test block base is fixed on the moving platform; a test block penetrates through a mounting hole in the test block base and is fixed by using a torsion screw nut; a strain sheet is adhered to the test block; a load guide rod is mounted at the upper part of the platform base; the lower end of the load guide rod contacts the test block; the load guide rod is connected with a weight; the rotation speed servo motor is connected with one end penetrating through the platform base, of the ball screw; the torque servo motor is connected with the outer surface of the torsion screw nut. By adopting the reliability testing system, the stress state of a metal test block can be controlled in the testing process, and metal test block reliability testing results in different working conditions can be obtained.
Description
technical field [0001] The invention relates to a reliability testing system for a controllable stress state of a metal test block, which can control the stress state of the metal test block during a test and study its damage mechanism. Background technique [0002] In most cases, metals are machined into parts and assembled into mechanical wholes. Among them, the transmission and force-bearing parts are often prestressed during assembly and change with time. When working, these components are subjected to repeated working loads, which will inevitably lead to a decrease in reliability. Contents of the invention [0003] The present invention aims to solve the above-mentioned disadvantages, and provides a reliability testing system for the stress state of the controllable metal test block. [0004] The above object of the present invention is achieved through the following technical solutions: a reliability testing system of a controllable metal test block stress state, c...
Claims
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IPC IPC(8): G01N3/14G01N3/06
CPCG01N3/066G01N3/14G01N2203/0033G01N2203/0682G01N2203/0202G01N2203/0617G01N3/22G01N2203/0026Y02P90/02
Inventor 钟雯王宇张庆功刘渝杨昌明周立平向中凡陈朴童俊
Owner XIHUA UNIV