Fatigue testing device

Abstract

The utility model relates to the technical field of fatigue testing, and provides a fatigue testing device which comprises a supporting frame, an air cylinder, a base plate, a pressing plate, a guide assembly, a quick-release testing clamping assembly and a quick-release limiting guide assembly, the air cylinder is fixedly installed on the supporting frame, and the output end of the air cylinder is fixedly connected with the pressing plate arranged in the supporting frame. The base plate is fixedly installed at the bottom of the supporting frame, the pressing plate is arranged on the base plate in a sliding mode through the guide assembly, one set of quick-release limiting guide assembly is arranged on the upper side of the base plate, and the other set of quick-release limiting guide assembly is arranged on the lower side of the pressing plate. According to the utility model, the structure is reasonable, the use is convenient, the installation difficulty of a fatigue test element is reduced, the fatigue test efficiency is improved, and the disassembly, assembly and maintenance are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to fatigue test technical field especially relates to a kind of fatigue test device. BACKGROUND

[0002] Fatigue test is the test method for evaluating the durability and reliability of products or materials under repeated load, wherein, spring fatigue test is one of many fatigue tests, spring fatigue refers to the crack of metal is increased, crack gap is increased, eventually leads to fatigue, spring is broken after exceeding fatigue limit. The load of spring, fatigue strength directly affects the service life of product, so fatigue test needs to be carried out on spring, and the fatigue resistance of spring is obtained, to provide data support for the service life of application product.

[0003] As the application number: CN201922293333.9 discloses a kind of spring fatigue test device, including support base plate, support foot plate, support slide column, upper hanging plate, upper test platen structure, lower test platen structure, test telescopic cylinder, extension rod, control main cabinet, protection cabinet door, touch screen, test host and spring main body, the support foot plate is respectively welded in the lower surface four corner positions of support base plate.

[0004] However, the existing fatigue test device needs to install multiple fatigue test elements in the press when in use, which is difficult to install due to the narrow and small space inside the press. UTILITY MODEL CONTENT

[0005] To solve the problem that the existing fatigue test device needs to install multiple fatigue test elements in the press when in use, which is difficult to install due to the narrow and small space inside the press, the utility model provides a kind of fatigue test device to solve the problem.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A kind of fatigue test device, including: support frame, cylinder, base plate, platen, guide assembly, quick-release test clamping assembly and quick-release limit guide assembly, the cylinder is fixedly installed on support frame, cylinder output end is fixedly connected with the platen arranged in support frame, base plate is fixedly installed on support frame bottom, platen is slidably arranged on base plate by guide assembly, quick-release limit guide assembly is provided with two groups, one group of quick-release limit guide assembly is arranged on the upside of base plate, another group of quick-release limit guide assembly is arranged on the downside of platen, quick-release test clamping assembly is used in cooperation with two groups of quick-release limit guide assembly respectively.

[0008] Preferably, the support frame comprises a bottom plate, a top plate and support columns, the bottom plate is fixedly connected with the top plate through the support columns, the support columns are provided in four groups, the base plate is fixedly installed on the upper side of the bottom plate, and the air cylinder is fixedly installed on the upper side of the top plate, and the output end of the air cylinder is fixedly connected with the pressing plate through the top plate.

[0009] Preferably, the guide assembly comprises a guide sleeve and a guide column, the guide sleeve is fixedly installed on the pressing plate, the lower end of the guide column is fixedly connected with the base plate, and the upper end of the guide column penetrates through the guide sleeve and is in sliding connection with the guide sleeve.

[0010] Preferably, the quick-release test clamping assembly comprises a sliding bottom plate, a sliding top plate, a guide sliding rod and a clamping assembly, the sliding top plate is slidably arranged above the sliding bottom plate through the guide sliding rod, the clamping assembly is provided in multiple groups, the multiple groups of clamping assemblies are respectively and correspondingly arranged on the sliding bottom plate and the sliding top plate, and the sliding bottom plate and the sliding top plate are used in cooperation with the two groups of quick-release limiting guide assemblies.

[0011] Preferably, the clamping assembly comprises a clamping base and a tightening screw, the clamping base is provided with a placing groove, the end of the tightening screw extends into the placing groove from one side of the clamping base, and the tightening screw is in threaded connection with the clamping base.

[0012] Preferably, the quick-release limiting guide assembly comprises a guide block, a positioning block and a fixed block, the guide block is provided in two groups, the two groups of guide blocks are symmetrically arranged, the sliding bottom plate or the sliding top plate is arranged between the two groups of guide blocks and is in sliding connection with the guide blocks, the fixed block is fixedly installed on one side of the guide block, the other side of the fixed block is arranged on the upper side of the sliding bottom plate or the lower side of the sliding top plate, and the positioning block is arranged on the rear side of the sliding bottom plate or the sliding top plate.

[0013] Preferably, the sliding side plates are arranged on the two sides of the sliding bottom plate or the sliding top plate.

[0014] Preferably, the feeding sides of the guide block and the fixed block are transitioned through a circular arc.

[0015] Preferably, the sliding bottom plate is provided with a handle block on the front side, the handle block is fixedly connected with the sliding bottom plate, and the handle block is provided with a handle groove on the upper side.

[0016] Preferably, the sliding bottom plate is provided with a positioning pin on the upper side, and the end of the positioning pin penetrates through the sliding bottom plate and is arranged in a positioning hole formed in the base plate.

[0017] The utility model discloses a quick -detachable test clamping assembly can install fatigue test element in advance in quick -detachable test clamping assembly, then quick -detachable test clamping assembly is put into the base plate and the pressing plate between the support frame through quick -detachable position limiting guide assembly, has reduced the installation difficulty, has improved the test efficiency, and can prepare multiple quick -detachable test clamping assemblies in advance and install fatigue test element to multiple quick -detachable test clamping assemblies in advance in use, and then can reduce the downtime of fatigue test device, because quick -detachable test clamping assembly can install fatigue test element on the outside, avoids the installation in the long narrow small space. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this patent, are included to provide a further understanding of the application and are incorporated herein in their entirety. The drawings are not intended to limit the scope of this patent in any way. In the drawings:

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2 It is the front view of the utility model;

[0021] Figure 3 It is the front view of the support frame of the utility model;

[0022] Figure 4 It is the front view of the guide assembly of the utility model;

[0023] Figure 5 It is the structural schematic diagram of the quick -detachable test clamping assembly of the utility model;

[0024] Figure 6 It is the plan view of the clamping assembly of the utility model;

[0025] Figure 7 It is the structural schematic diagram of the quick -detachable position limiting guide assembly of the utility model.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 1, support frame, 2, air cylinder, 3, base plate, 4, pressing plate, 5, guide assembly, 6, quick -detachable test clamping assembly, 7, quick -detachable position limiting guide assembly, 11, bottom plate, 12, top plate, 13, support column, 51, guide sleeve, 52, guide column, 61, sliding bottom plate, 62, sliding top plate, 63, guide slide, 64, clamping assembly, 641, clamping base, 642, tight screw, 71, guide block, 72, positioning block, 73, fixed block, 8, sliding side plate, 9, handle block, 10, positioning pin. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0029] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0030] In the description of the utility model, it needs to be understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0031] Embodiment one, in combination Figure 1 And Figure 2 It is explained:

[0032] A fatigue testing device, comprising: a support frame 1, a cylinder 2, a base plate 3, a pressing plate 4, a guide assembly 5, a quick-release testing clamping assembly 6 and a quick-release limiting guide assembly 7, the cylinder 2 is fixedly installed on the support frame 1, the output end of the cylinder 2 is fixedly connected with the pressing plate 4 arranged in the support frame 1, the base plate 3 is fixedly installed at the bottom of the support frame 1, the pressing plate 4 is slidably arranged on the base plate 3 through the guide assembly 5, the quick-release limiting guide assembly 7 is provided with two groups, one group of quick-release limiting guide assemblies 7 is arranged on the upper side of the base plate 3, and the other group of quick-release limiting guide assemblies 7 is arranged on the lower side of the pressing plate 4, and the quick-release testing clamping assembly 6 is used in cooperation with the two groups of quick-release limiting guide assemblies 7.

[0033] In this way, by using the quick-release test clamping assembly 6 and the quick-release limiting guide assembly 7, the fatigue test element can be quickly replaced, improving the test efficiency and flexibility. The guide assembly 5 ensures the straight-line movement of the pressure plate 4 during the movement process, reducing the influence of lateral force on the test results and improving the accuracy of the test. Using the air cylinder 2 as the power source can provide stable and adjustable force, making the load control during the test process more accurate.

[0034] In Example Two, based on Example One, the following is combined Figure 3 for illustration:

[0035] The support frame 1 includes a bottom plate 11, a top plate 12, and support columns 13. The bottom plate 11 is fixedly connected to the top plate 12 through the support columns 13. The base plate 3 is fixedly installed on the upper side of the bottom plate 11, and the air cylinder 2 is fixedly installed on the upper side of the top plate 12. The output end of the air cylinder 2 passes through the top plate 12 and is fixedly connected to the pressure plate 4.

[0036] In this way, the four sets of support columns 13 provide good stability, ensuring that the entire test device does not tilt or move when the force is applied, thereby ensuring the accuracy of the test. The bottom plate 11 and the top plate 12 are fixedly connected through the support columns 13, forming a solid frame structure that can withstand large loads and is suitable for high-strength fatigue testing. By installing the air cylinder 2 on the top plate 12 and the base plate 3 on the bottom plate 11, the vertical space is effectively utilized, making the device more compact and saving laboratory or workshop space.

[0037] In Example Three, based on Example Two, the following is combined Figure 4 for illustration:

[0038] The guide assembly 5 includes a guide sleeve 51 and a guide column 52. The guide sleeve 51 is fixedly installed on the pressure plate 4, and the lower end of the guide column 52 is fixedly connected to the base plate 3. The upper end of the guide column 52 passes through the guide sleeve 51 and is slidingly connected to the guide sleeve 51.

[0039] The combination of the guide sleeve 51 and the guide column 52 provides precise straight-line guidance, ensuring that the pressure plate 4 remains vertical during upward and downward movement, reducing deviation and sway, and thereby improving the accuracy of the test.

[0040] In Example Four, based on Example Three, the following is combined Figure 5 for illustration:

[0041] The quick-release test clamping assembly 6 includes: a sliding base plate 61, a sliding top plate 62, a guide slide rod 63 and a clamping assembly 64. The sliding top plate 62 is slidably arranged above the sliding base plate 61 through the guide slide rod 63. There are multiple groups of clamping assemblies 64, and the multiple groups of clamping assemblies 64 are respectively arranged on the sliding base plate 61 and the sliding top plate 62 in a one-to-one correspondence. The sliding base plate 61 and the sliding top plate 62 are respectively used in conjunction with two groups of quick-release limit guide assemblies 7.

[0042] The quick-release design allows the operator to quickly load and unload samples, significantly reducing the time required to change samples and improving testing efficiency. Multiple clamping assemblies 64 can be adjusted to suit different sample sizes and shapes, allowing the device to adapt to various testing requirements. Guide rods 63 ensure smooth sliding of the sliding top plate 62 on the sliding bottom plate 61, reducing lateral forces and improving clamping stability.

[0043] Example 5, based on Example 4, combined with Figure 6 To explain:

[0044] The clamping assembly 64 includes: a clamping base 641 and a tightening screw 642. The clamping base 641 is provided with a placement groove. The end of the tightening screw 642 extends from one side of the clamping base 641 into the placement groove. The tightening screw 642 is connected to the clamping base 641 through threads.

[0045] The structure of the clamping base 641 and the tightening screw 642 is simple and easy to understand and operate, while providing a reliable clamping force. By rotating the tightening screw 642, the clamping force can be easily adjusted to accommodate samples of different thicknesses and hardnesses.

[0046] Example 6, based on Example 5, combined with Figure 7 To explain:

[0047] The quick-release limit guide assembly 7 includes: a guide block 71, a positioning block 72 and a fixed block 73. The guide blocks 71 are arranged in two groups, and the two groups of guide blocks 71 are symmetrically arranged. The sliding base plate 61 or the sliding top plate 62 is arranged between the two groups of guide blocks 71 and is slidably connected to the guide blocks 71. One side of the fixed block 73 is fixedly installed on the guide block 71, and the other side of the fixed block 73 is arranged on the upper side of the sliding base plate 61 or the lower side of the sliding top plate 62. The positioning block 72 is arranged on the rear side of the sliding base plate 61 or the sliding top plate 62.

[0048] In this way, the two sets of guide blocks 71 are symmetrically arranged to provide stable linear guidance, ensuring that the sliding bottom plate 61 or the sliding top plate 62 maintains balance during movement and reduces deviation. The presence of the positioning blocks can limit the movement of the sliding bottom plate or the sliding top plate.

[0049] The sliding side plate 8 is arranged on both sides of the sliding bottom plate 61 or the sliding top plate 62.

[0050] In this way, the production cost of the sliding bottom plate 61 and the sliding top plate 62 can be reduced, and the sliding side plate 8 provides good sliding guiding performance.

[0051] The feeding side of the guiding block 71 and the fixing block 73 is transitioned through a circular arc, so that the quick-release test clamping assembly 6 is conveniently slid into the quick-release limiting guiding assembly 7.

[0052] The sliding bottom plate 61 is provided with a handle block 9 on the front side, the handle block 9 is fixedly connected with the sliding bottom plate 61, and a handle slot is arranged on the upper side of the handle block 9. In this way, the quick-release test clamping assembly 6 is conveniently put in and taken out by the staff.

[0053] The sliding bottom plate 61 is provided with a positioning pin 10 on the upper side, the positioning pin 10 is arranged at the end through the sliding bottom plate 61 in the positioning hole of the base plate 3. In this way, the positioning pin 10 can ensure the accuracy of the placement position of the sliding bottom plate 61, and improve the fatigue test precision.

[0054] The working principle of the utility model is: when the device is used, the fatigue test element is installed in the quick-release test clamping assembly 6 in advance, then the quick-release test clamping assembly 6 is put into the base plate 3 and the pressing plate 4 between the support frame 1 through the quick-release limiting guiding assembly 7, then the cylinder 2 is started to drive the pressing plate 4 to move for fatigue test, the utility model has the advantages of reasonable structure, convenient use, reduced installation difficulty of fatigue test element, improved fatigue test efficiency and convenient disassembly, maintenance.

[0055] For those skilled in the art, the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0056] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any slight modification, equivalent replacement and improvement according to the technical essence of the utility model on the above embodiments should be included in the protection scope of the technical scheme of the utility model.

Claims

1. A fatigue testing device, characterized in that: Include: Support frame (1), cylinder (2), base plate (3), pressing plate (4), guide assembly (5), quick release test clamping assembly (6) and quick release limit guide assembly (7), the cylinder (2) is fixedly installed on the support frame (1), the cylinder (2) output end is fixedly connected with the pressing plate (4) arranged in the support frame (1), the base plate (3) is fixedly installed on the bottom of the support frame (1), the pressing plate (4) is slidably arranged on the base plate (3) through the guide assembly (5), the quick release limit guide assembly (7) is provided with two groups, one group of quick release limit guide assembly (7) is arranged on the upper side of base plate (3), the other group of quick release limit guide assembly (7) is arranged on the lower side of pressing plate (4), quick release test clamping assembly (6) is used with two groups of quick release limit guide assembly (7) respectively.

2. A fatigue testing apparatus according to claim 1, wherein The support frame (1) comprises: bottom plate (11), top plate (12) and support column (13), the bottom plate (11) is fixedly connected with the top plate (12) through the support column (13), the support column (13) is provided with four groups, the base plate (3) is fixedly installed on the upper side of the bottom plate (11), the cylinder (2) is fixedly installed on the upper side of the top plate (12), the cylinder (2) output end passes through the top plate (12) and is fixedly connected with the pressing plate (4).

3. A fatigue testing apparatus according to claim 1, wherein The guide assembly (5) comprises: guide sleeve (51) and guide column (52), the guide sleeve (51) is fixedly installed on the pressing plate (4), the lower end of the guide column (52) is fixedly connected with the base plate (3), the upper end of the guide column (52) passes through the guide sleeve (51) and is slidably connected with the guide sleeve (51).

4. The fatigue testing apparatus of claim 1, wherein The quick release test clamping assembly (6) comprises: sliding bottom plate (61), sliding top plate (62), guide sliding rod (63) and clamping assembly (64), the sliding top plate (62) is slidably arranged above the sliding bottom plate (61) through the guide sliding rod (63), the clamping assembly (64) is provided with multiple groups, multiple clamping assemblies (64) are respectively arranged on the sliding bottom plate (61) and the sliding top plate (62) one by one, the sliding bottom plate (61) and the sliding top plate (62) are used with two groups of quick release limit guide assembly (7) respectively.

5. The fatigue testing apparatus of claim 1, wherein The clamping assembly (64) comprises: clamping base (641) and tightening screw (642), the clamping base (641) is provided with a placing groove, the end of the tightening screw (642) extends into the placing groove from one side of the clamping base (641), and the tightening screw (642) is connected with the clamping base (641) through threads.

6. A fatigue testing apparatus according to claim 4, wherein The quick release limit guide assembly (7) comprises: guide block (71), positioning block (72) and fixed block (73), the guide block (71) is provided with two groups, the two groups of guide blocks (71) are symmetrically arranged, the sliding bottom plate (61) or the sliding top plate (62) is arranged between the two groups of guide blocks (71) and is slidably connected with the guide blocks (71), the fixed block (73) is fixedly installed on one side of the guide block (71), the other side of the fixed block (73) is arranged on the upper side of the sliding bottom plate (61) or the lower side of the sliding top plate (62), and the positioning block (72) is arranged on the rear side of the sliding bottom plate (61) or the sliding top plate (62).

7. A fatigue testing apparatus according to claim 4, wherein The sliding side plate (8) is arranged on both sides of the sliding bottom plate (61) or the sliding top plate (62).

8. A fatigue testing apparatus according to claim 6, wherein The feed side of the guide block (71) and the fixed block (73) is transitioned through a circular arc.

9. A fatigue testing apparatus according to claim 4, wherein The front side of the sliding bottom plate (61) is provided with a handle block (9), the handle block (9) is fixedly connected with the sliding bottom plate (61), and the upper side of the handle block (9) is provided with a handle slot.

10. The fatigue testing apparatus of claim 4, wherein, The upper side of the sliding bottom plate (61) is provided with a positioning pin (10), and the end of the positioning pin (10) is arranged in the positioning hole of the base plate (3).

Images