弹簧扣疲劳性能测试装置

Abstract

在本申请的实施例中提供了一种弹簧扣疲劳性能测试装置，涉及材料检测领域；包括底座、样品支撑座、样品夹、气缸、接近开关和计数器；样品支撑座设置于底座顶部一侧；样品夹安装在样品支撑座，用于压紧样品；气缸通过气缸支架固定于底座顶部另一侧，气缸的伸缩端朝向样品支撑座并与样品相对；接近开关安装于底座并设置在气缸一侧，用于检测气缸的伸缩；计数器设置在底座内部，并与接近开关电性连接，用于记录或设定气缸伸缩次数。本申请能够自动测试弹簧扣的疲劳性能，且操作统一规范，准确性高，节省人力成本。

Claims

1. A spring shackle fatigue performance testing apparatus, characterized by, It includes a base, a sample support, a sample clamp, a cylinder, a proximity switch, and a counter; the sample support is disposed on one side of the top of the base; the sample clamp is installed on the sample support and is used to clamp the sample; The cylinder is fixed to the other side of the top of the base by a cylinder bracket, and the telescopic end of the cylinder faces the sample support and is opposite to the sample; the proximity switch is installed on the base and set on one side of the cylinder for detecting the extension and retraction of the cylinder; the counter is set inside the base and electrically connected to the proximity switch for recording or setting the number of cylinder extensions and retractions.

2. The spring clip fatigue performance testing device of claim 1, wherein, The cylinder is a double-rod cylinder, comprising two telescopic rods located at both ends; wherein, the end of the telescopic rod furthest from the sample support is connected to an adjusting screw. The adjusting screw is externally threaded with an adjusting component; the adjusting component includes an adjusting nut and a hollow tube, the adjusting nut is connected to the end of the hollow tube away from the dual-rod cylinder, and the hollow tube is sleeved on the outside of the adjusting screw and the corresponding telescopic rod.

3. The spring clip fatigue performance testing device of claim 2, wherein, The proximity switch is correspondingly located at one end of the telescopic rod of the double-rod cylinder away from the sample support.

4. The spring clip fatigue performance testing device of claim 1, wherein, The sample holder includes an operating lever, a four-bar linkage, a pressure rod, and a pressure plate; the operating lever and the pressure rod are respectively connected to the four-bar linkage, so that the upward pulling and downward pressing of the operating lever drives the downward pressing and upward moving of the pressure rod through the four-bar linkage; The pressure plate is connected to the bottom of the adjusting bolt that passes through the pressure rod and is opposite to the sample support.

5. The spring clip fatigue performance testing device of claim 4, wherein, The four-bar linkage structure includes a fixed base, a first link, a second link, and a third link; the fixed base is installed on the top of the sample support base, and hinge points are respectively provided at both ends of its top, with a concave arc-shaped recess between the two hinge points; The first connecting rod is arc-shaped, with one end hinged to one end of the fixed base and the other end hinged to one end of the second connecting rod. The hinge points at both ends of the second link form an upward-convex arc-shaped indentation, and the other end of the second link is hinged to the upper end of the third link; the upper part of the second link is connected to the operating lever. The lower end of the third link is hinged to the fixed base, and one side of the third link is connected to the pressure rod; The arc-shaped recess of the fixed seat is adapted to the outer contour of the hinge point at one end of the second connecting rod, and the arc-shaped recess of the second connecting rod is adapted to the outer contour of the hinge point at one end of the fixed seat.

6. The spring clip fatigue performance testing device of claim 1, wherein, The sample support includes a fixed base and an adjusting base. The sample clamp is disposed on the top of the fixed base. The adjusting base is disposed on the side of the fixed base near the cylinder and is composed of multiple stacked plates, with the bottom plate being integrally connected to the fixed base.

7. The spring clip fatigue performance testing device of claim 1, wherein, It also includes an air source processor, which is connected to compressed air and connected to a solenoid valve via a pipeline; the solenoid valve is connected to the cylinder.

8. The spring clip fatigue performance testing device of claim 7, wherein, It also includes a dual-set delay relay, which is connected to the counter and the solenoid valve respectively.

9. The spring clip fatigue performance testing device of claim 8, wherein, It also includes a power supply, which is electrically connected to the dual-setting delay relay and the counter, respectively.

10. The spring clip fatigue performance testing device of claim 9, wherein, The base is equipped with a display screen, a power switch, and a start button.

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