Metal material fatigue test workbench

Abstract

The utility model discloses a metal material fatigue test workbench, which comprises a table top, a support plate is fixedly connected to one side of the upper surface of the table top, a hydraulic rod is fixedly connected to one surface, facing the center of the table top, of the support plate, a movable end of the hydraulic rod is connected with a first metal rod, one end of the first metal rod is provided with a pressure tester, and the other end of the first metal rod is provided with a pressure sensor. A longitudinal transverse plate is fixedly connected to the side, away from the supporting plate, of the upper surface of the table top, the pressure tester is slidably connected to the upper surface of the transverse plate, clamping pieces are fixedly connected to the front side and the rear side of the transverse plate correspondingly, and the two clamping pieces are installed at the two ends of a second metal rod correspondingly. The first metal rod and the second metal rod are vertically arranged, one end of the pressure tester is in contact with the first metal rod, the other end of the pressure tester is in contact with the center of the second metal rod, and the first metal rod is subjected to an extrusion test and a bending test at the same time, so that the metal fatigue test speed is increased; and the use of test equipment is reduced.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of metal fatigue testing, in particular to a metal material fatigue testing workbench. Background Art

[0002] Metal fatigue refers to the process in which a metal material gradually deforms in one or several places under the action of force. Metal is widely used in transportation work such as automobiles, and the car frame is composed of multiple metals. When an accident occurs, the car frame will deform. In order to judge the metal's ability to resist extrusion deformation before the car is produced, fatigue testing of metal materials is very important.

[0003] In the prior art, metal fatigue tests include metal extrusion test, metal bending test, etc. The metal extrusion test mainly involves passing a pressure device to squeeze the two ends of the metal to determine the metal's resistance to extrusion. The metal bending test involves passing a pressure device to squeeze the middle area of ​​the metal to determine the metal's resistance to bending. However, the metal extrusion test and the metal bending test can only be performed once, which results in the metal extrusion test and the metal bending being time-consuming and requiring too much testing equipment. Therefore, a new type of metal material fatigue testing workbench is needed. Utility Model Content

[0004] The technical solution of the utility model is aimed at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. It mainly provides a metal material fatigue test workbench to solve the technical problems raised in the above background technology that the metal extrusion test and metal bending test are time-consuming and require too much testing equipment.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A metal material fatigue testing workbench comprises a table top, a first metal rod arranged transversely and a second metal rod arranged longitudinally are provided above the table top, a support plate is connected and fixed to one side of the upper surface of the table top, a hydraulic rod is connected and fixed to the side of the support plate facing the center of the table top, the movable end of the hydraulic rod is connected to the first metal rod, a pressure tester is installed at the end of the first metal rod away from the hydraulic rod, a longitudinally arranged transverse plate is connected and fixed to the upper surface of the transverse plate, the front and rear sides of the transverse plate are connected and fixed to clamping members, and the two clamping members are respectively installed at the two ends of the second metal rod.

[0007] Preferably, the clamping member includes a splint, both ends of the second metal rod are slidably connected to the splint, a movable rod is connected and fixed to the side of the splint facing the transverse plate, a pipe sleeve is connected and fixed to the side of the transverse plate facing the splint, the end of the movable rod away from the splint is inserted into the pipe sleeve, the end of the movable rod in the pipe sleeve is connected and fixed to an elastic member, and the end of the elastic member away from the pipe sleeve is slidably connected and fixed in the pipe sleeve.

[0008] Preferably, circular holes are provided on opposite sides of the two clamping plates, and the second metal rod is inserted into the circular holes.

[0009] Preferably, an arc-shaped plate is slidably connected to one side of the circular hole, a threaded hole is provided on the side of the clamping plate facing the arc-shaped plate, a screw is threadedly connected to the threaded hole, a bearing is connected and fixed to the side of the arc-shaped plate facing the screw, and the screw is connected and fixed in the bearing.

[0010] Preferably, a U-shaped block is fixedly connected to the lower surface of the pressure tester, and the U-shaped block is slidably connected to the upper surface of the horizontal plate.

[0011] Preferably, a circular ring is sleeved on the annular surface of the second metal rod, and one end of the pressure tester away from the first metal rod is connected and fixed to the circular ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By arranging the first metal rod and the second metal rod perpendicular to each other, and making one end of the pressure tester contact with the first metal rod and the other end contact with the center of the second metal rod, when the hydraulic rod squeezes the first metal rod, the squeezing force will be transmitted to the center of the second metal rod at the same time, and the first metal rod will be squeezed and the second metal rod will be bent at the same time, thereby improving the speed of metal fatigue testing and reducing the use of testing equipment.

[0014] 2. The second metal rod is clamped by connecting and fixing a clamping mechanism consisting of a pipe sleeve, a movable rod, an elastic member and a clamping plate on both sides of the cross plate, so that the contact position between the pressure tester and the second metal rod is the center position of the second metal rod, thereby increasing the accuracy of the bending test of the second metal rod.

[0015] 3. By installing a clamping structure consisting of an arc plate, a bearing and a screw in the circular hole, the clamping structure is used to clamp the second metal rods of different thicknesses, thereby increasing the applicability of the device.

[0016] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the assembly of the pipe sleeve, the movable rod and the elastic member of the utility model;

[0019] Figure 3 It is a schematic diagram of the assembly of the screw rod, the bearing, the arc plate and the second metal rod of the utility model.

[0020] Markings in the figure:

[0021] 1. Table; 2. Support plate; 3. Hydraulic rod; 4. First metal rod; 5. Pressure tester; 6. Clamp; 7. Second metal rod; 8. Ring; 9. Horizontal plate; 10. U-shaped block; 11. Pipe sleeve; 12. Elastic part; 13. Movable rod; 14. Round hole; 15. Arc plate; 16. Screw; 17. Bearing. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] Please refer to the attached Figure 1-3A metal material fatigue test workbench comprises a table top 1, a first metal rod 4 arranged horizontally and a second metal rod 7 arranged vertically are arranged above the table top 1, a fixed support plate 2 is connected to one side of the upper surface of the table top 1, a fixed hydraulic rod 3 is connected to the side of the support plate 2 facing the center of the table top 1, a movable end of the hydraulic rod 3 is connected to the first metal rod 4, a pressure tester 5 is installed at one end of the first metal rod 4 away from the hydraulic rod 3, a fixed longitudinally arranged horizontal plate 9 is connected to the side of the upper surface of the table top 1 away from the support plate 2, the The pressure tester 5 is slidably connected to the upper surface of the horizontal plate 9, and is connected to a fixed pipe sleeve 11 on both the front and rear sides of the horizontal plate 9. A movable rod 13 is inserted in the pipe sleeve 11. One end of the movable rod 13 in the pipe sleeve 11 is connected to a fixed elastic member 12. The elastic member 12 is a spring. The elastic member 12 is in a stretched state. The end of the second elastic member 12 away from the movable rod 13 is connected and fixed to the pipe sleeve 11. The end of the movable rod 13 away from the pipe sleeve 11 is connected to a fixed splint 6. The second metal rod 7 is slidably connected between the two splints 6.

[0026] By arranging the first metal rod 4 and the second metal rod 7 perpendicular to each other, and making one end of the pressure tester 5 contact with the first metal rod 4, and the other end contact with the center of the second metal rod 7, when the hydraulic rod 3 squeezes the first metal rod 4, the squeezing force will be transmitted to the center of the second metal rod 7 at the same time, and the first metal rod 4 will be tested for squeezing and the second metal rod 7 will be tested for bending, thereby improving the speed of metal fatigue testing and reducing the use of testing equipment.

[0027] In addition, the second metal rod 7 is clamped by connecting and fixing a clamping mechanism consisting of a pipe sleeve 11, a movable rod 13, an elastic member 12 and a clamping plate 6 on both sides of the cross plate 9, so that the contact position between the pressure tester 5 and the second metal rod 7 is the center position of the second metal rod 7, thereby increasing the accuracy of the bending test of the second metal rod 7.

[0028] In order to facilitate the fixation of the two ends of the clamping plate 6, circular holes 14 are opened on the opposite sides of the two clamping plates 6, and the second metal rod 7 is inserted into the circular hole 14, and then the arc plate 15 is slidably connected to one side of the circular hole 14. A threaded hole is opened on the side of the clamping plate 6 facing the arc plate 15, and the screw 16 is threadedly connected to the threaded hole. The side of the arc plate 15 facing the screw 16 is connected to a fixed bearing 17, and the screw 16 is connected and fixed in the bearing 17.

[0029] By installing a clamping structure consisting of an arc plate 15, a bearing 17 and a screw rod 16 in the circular hole 14, the clamping structure is used to clamp the second metal rods 7 of different thicknesses, thereby increasing the applicability of the device.

[0030] In order to prevent the pressure tester 5 from falling off the upper surface of the horizontal plate 9 , a U-shaped block 10 is connected and fixed to the lower surface of the pressure tester 5 , and the U-shaped block 10 is slidably connected to the upper surface of the horizontal plate 9 .

[0031] In order to prevent the pressure tester 5 from slipping when in contact with the second metal rod 7 , a ring 8 is sleeved on the annular surface of the second metal rod 7 , and one end of the pressure tester 5 away from the first metal rod 4 is connected and fixed to the ring 8 .

[0032] The specific operation process of the utility model is as follows: the two ends of the first metal rod 4 are fixed to the movable end of the hydraulic rod 3 and the pressure tester 5 respectively, and then the second metal rod 7 is placed between the circular holes 14 of the two clamping plates 6, and the two ends of the second metal rod 7 are clamped by using the clamping structure composed of the arc plate 15, the bearing 17 and the screw 16, and the ring 8 is located at the center of the second metal rod 7 through the tension adjustment of the two elastic members 12, and then the hydraulic rod 3 is started to perform an extrusion test on the first metal rod 4. At the same time, the force of the hydraulic rod 3 squeezing the first metal rod 4 is transmitted to the center of the second metal rod 7 through the pressure tester 5 and the ring 8, and the second metal rod 7 is subjected to a bending test until the first metal rod 4 is extruded and deformed or the second metal rod 7 stops bending.

[0033] When the first metal rod 4 is deformed or the second metal rod 7 is bent, the value of the pressure tester 5 at this time is recorded to obtain a test data of the first metal rod 4 and the second metal rod 7 (the test data is the deformation data of one of the first metal rod 4 and the second metal rod 7 and the incomplete or slight deformation data of the other), and then the positions of the first metal rod 4 and the second metal rod 7 are swapped back and forth for multiple tests, thereby obtaining multiple sets of extrusion and bending test data and incomplete or slight deformation data of the first metal rod 4 and the second metal rod 7.

[0034] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A metal material fatigue test workbench, comprising a table top (1), characterized in that: A first metal rod (4) arranged transversely and a second metal rod (7) arranged longitudinally are provided above the table top (1); a support plate (2) is connected and fixed to one side of the upper surface of the table top (1); a hydraulic rod (3) is connected and fixed to one side of the support plate (2) facing the center of the table top (1); a movable end of the hydraulic rod (3) is connected to the first metal rod (4); a pressure tester (5) is installed at one end of the first metal rod (4) away from the hydraulic rod (3); a longitudinally arranged transverse plate (9) is connected and fixed to one side of the upper surface of the table top (1) away from the support plate (2); the pressure tester (5) is slidably connected to the upper surface of the transverse plate (9); clamping members are connected and fixed to both the front and rear sides of the transverse plate (9); and two clamping members are respectively installed at two ends of the second metal rod (7).

2. A metal material fatigue test workbench according to claim 1, characterized in that: The clamping member comprises a clamping plate (6), both ends of the second metal rod (7) are slidably connected to the clamping plate (6), a movable rod (13) is connected and fixed to the side of the clamping plate (6) facing the transverse plate (9), a pipe sleeve (11) is connected and fixed to the side of the transverse plate (9) facing the clamping plate (6), the end of the movable rod (13) away from the clamping plate (6) is inserted into the pipe sleeve (11), the end of the movable rod (13) in the pipe sleeve (11) is connected and fixed to an elastic member (12), and the end of the elastic member (12) away from the pipe sleeve (11) is slidably connected and fixed in the pipe sleeve (11).

3. A metal material fatigue test workbench according to claim 2, characterized in that: A circular hole (14) is provided on one opposite side of the two clamping plates (6), and the second metal rod (7) is inserted into the circular hole (14).

4. A metal material fatigue test workbench according to claim 3, characterized in that: An arc-shaped plate (15) is slidably connected to one side of the circular hole (14); a threaded hole is provided on the side of the clamping plate (6) facing the arc-shaped plate (15); a screw rod (16) is threadedly connected to the threaded hole; a bearing (17) is fixedly connected to one side of the arc-shaped plate (15) facing the screw rod (16); and the screw rod (16) is fixedly connected to the bearing (17).

5. The metal material fatigue test workbench according to claim 1, characterized in that: A U-shaped block (10) is fixedly connected to the lower surface of the pressure tester (5), and the U-shaped block (10) is slidably connected to the upper surface of the transverse plate (9).

6. The metal material fatigue test workbench according to claim 1, characterized in that: A circular ring (8) is sleeved on the annular surface of the second metal rod (7), and one end of the pressure tester (5) away from the first metal rod (4) is connected and fixed to the circular ring (8).

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