Electro-hydraulic servo fatigue test fixture replacement assistive device

Abstract

The utility model discloses an electro-hydraulic servo fatigue test fixture replacement assistive device, and relates to the technical field of metal mechanical property detection. Comprising a supporting assembly, a connecting assembly and a bearing assembly, the bearing assembly is connected with the supporting assembly through the connecting assembly, the bearing assembly is used for bearing an upper clamp body, and the supporting assembly is used for supporting the connecting assembly so as to support the bearing assembly. The clamp of the fatigue testing machine can be supported, the upper clamp body is prevented from sliding off, the clamp replacement difficulty is lowered, and the safety in the clamp replacement process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of metal mechanical property detection, and in particular to an auxiliary tool for replacing an electro-hydraulic servo fatigue test fixture. Background Art

[0002] The electro-hydraulic servo fatigue testing machine is a system for dynamic and static mechanical properties testing of materials or parts with strong functions, high precision, good reliability, wide application range and high cost performance. It can be used for tensile, compression, low-cycle and high-cycle fatigue, fatigue crack growth, fracture mechanics and mechanical tests simulating actual working conditions.

[0003] Usually, the clamps of the electro-hydraulic servo fatigue testing machine are divided into normal temperature clamps and high temperature clamps. The normal temperature clamps are equipped with a hydraulic clamping / releasing system, which has the advantage of convenient and stable clamping of rod-shaped specimens of different sizes. However, the disadvantage is that the clamp itself is large and very heavy, and is not easy to install or remove. In particular, the installation or removal of the upper clamp is very difficult to operate because the operator needs to hold the heavy clamp with his hands while rotating it to install or remove the clamp. Especially during the removal of the clamp, when the upper clamp is rotated out from the lower end of the upper beam of the fatigue testing machine, the operator often finds it difficult to hold the heavy upper clamp, which is very likely to cause the upper clamp to slip and cause personal safety accidents, smash the equipment operating table, and damage the hydraulic oil pipe interface on the side of the clamp, causing losses. Therefore, under normal circumstances, the installation or removal process of the upper clamp requires two to four people to complete, and it is very time-consuming and labor-intensive, with high operational safety risks. Utility Model Content

[0004] The purpose of the present application is to provide an electro-hydraulic servo fatigue test fixture replacement auxiliary tool, which can support the fixture of the fatigue testing machine, prevent the upper clamp from slipping, reduce the difficulty of replacing the fixture, and improve the safety during the fixture replacement process.

[0005] The present application provides an electro-hydraulic servo fatigue test fixture replacement auxiliary tool, including a supporting component, a connecting component and a bearing component, wherein the bearing component is connected to the supporting component through the connecting component, the bearing component is used to bear the upper clamping body, and the supporting component is used to support the connecting component, and then support the bearing component.

[0006] Optionally, the bearing assembly includes a bearing platform and a connecting portion connected to each other, the connecting portion is used to be connected to the connecting assembly, and a first rubber pad is provided on the surface of the bearing platform facing the upper clamping body.

[0007] Optionally, the supporting platform has two parallel strip grooves on one end facing the upper clamping body, the first rubber pad has two strip through holes corresponding to the strip grooves, the supporting assembly also includes two positioning blocks, the two positioning blocks pass through the strip through holes and are installed in the strip grooves, one end of the two positioning blocks is located in the strip groove, and the other end protrudes from the surface of the first rubber pad.

[0008] Optionally, the positioning block is a rectangular parallelepiped, and one end of the positioning block located in the strip groove is provided with a mounting slope.

[0009] Optionally, the supporting assembly further includes a first rotating handle and a second rotating handle, and a first connecting hole and a second connecting hole are relatively opened on the side surfaces of the supporting platform, one end of the first rotating handle is inserted into the first connecting hole and connected to the supporting platform, and a first anti-slip knurling is arranged on the side surface of the other end, and one end of the second rotating handle is inserted into the second connecting hole and connected to the supporting platform, and a second anti-slip knurling is arranged on the side surface of the other end.

[0010] Optionally, it is characterized in that the connecting assembly includes a connecting platform and an extension portion which are connected to each other, a first threaded hole is opened in the center of the connecting platform and the extension portion, a first external thread is provided on the side of the connecting portion, and the connecting portion is threadedly connected to the first threaded hole.

[0011] Optionally, at least three evenly distributed square grooves are formed on the lower surface of the connecting platform, and the supporting assembly includes at least three supporting legs, and the supporting legs include a limiting rod, a tilting rod and a supporting rod connected to each other, the limiting rod is installed in the square groove, and the supporting rod is supported on the machine base.

[0012] Optionally, the support assembly further includes an anti-skid pad, a stud is provided on the anti-skid pad, a second threaded hole is provided on the end surface of the support rod, and the anti-skid pad is threadedly connected to the second threaded hole through the stud.

[0013] Optionally, the limiting rod is parallel to the supporting rod, and the angle between the supporting rod and the tilting rod is 120° to 150°.

[0014] Optionally, the support legs, the connection assembly and the load-bearing platform are made of steel. The beneficial effects of this application include:

[0015] The present application provides an electro-hydraulic servo fatigue test fixture replacement auxiliary tool that connects a supporting component and a bearing component by setting a connecting component, and supports the connecting component and the bearing component through the supporting component, so that the bearing component can support the upper clamp body to prevent the upper clamp body from slipping, thereby reducing the difficulty of replacing the fixture and improving the safety during the fixture replacement process. It can support the fixture of the fatigue testing machine and prevent the upper clamp body from slipping, thereby reducing the difficulty of replacing the fixture and improving the safety during the fixture replacement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 Schematic diagram of the structure of the replacement auxiliary tool for the electro-hydraulic servo fatigue test fixture for this application Figure 1 ;

[0018] Figure 2 Schematic diagram of the structure of the replacement auxiliary tool for the electro-hydraulic servo fatigue test fixture for this application Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the structure of the load-bearing assembly of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the connection assembly of the present application;

[0021] Figure 5 This is a schematic diagram of the structure of the support leg of this application;

[0022] Figure 6 This is a schematic diagram of the cooperation between the anti-slip pad and the stud of the present application.

[0023] Icons: 100-support assembly; 110-support leg; 111-limit rod; 112-tilt rod; 113-support rod; 113b-second threaded hole; 120-anti-slip pad; 130-stud; 200-connecting assembly; 210-connecting platform; 211-square groove; 220-extension part; 230-first threaded hole; 300-bearing assembly; 310-bearing platform; 311-strip groove; 320-connecting part; 330-first rubber pad; 340-positioning block; 350-first rotating handle; 351-first anti-slip knurling; 360-second rotating handle; 361-second anti-slip knurling; 400-upper clamping body; 500-machine base.

[0024] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] Usually, the installation or removal of the clamp on the electro-hydraulic servo fatigue testing machine requires the operator to hold the heavy clamp with his hands while rotating it to install or remove the clamp, which is very difficult to operate. Especially during the removal of the clamp, when the upper clamp body is rotated out from the lower end of the upper beam of the fatigue testing machine, the operator often finds it difficult to hold the heavy upper clamp body, and it is very easy for the upper clamp body to slip and cause personal safety accidents, smash the equipment operating table, and damage the hydraulic oil pipe interface on the side of the clamp body, causing losses. Therefore, under normal circumstances, the installation or removal process of the upper clamp body requires the joint efforts of two to four people to complete, and it is very time-consuming and labor-intensive, and the operation safety risk is high. In response to the above problems, the embodiments of the present application provide the following technical solutions to overcome the above problems.

[0030] Please refer to Figure 1 and Figure 2 The present application provides an electro-hydraulic servo fatigue test fixture replacement auxiliary tool, including a support component 100, a connecting component 200 and a bearing component 300, wherein the bearing component 300 is connected to the support component 100 through the connecting component 200, and the bearing component 300 is used to bear the upper clamp body 400, and the support component 100 is used to support the connecting component 200, and then support the bearing component 300.

[0031] Specifically, the connecting component 200 is located between the bearing component 300 and the supporting component 100, and is used to connect the bearing component 300 and the supporting component 100. The supporting component 100 is supported on the base to support the connecting component 200 and the bearing component 300. The bearing component 300 is used to support the upper clamping body 400 of the electro-hydraulic servo fatigue testing machine. When replacing the upper clamping body 400, the bearing component 300 can bear the heavy upper clamping body 400 to prevent the upper clamping body 400 from falling and damaging the machine base 500 or the upper clamping body 400 itself.

[0032] The electro-hydraulic servo fatigue test fixture replacement aid provided in the present application is configured with a connecting component 200 to connect the supporting component 100 and the bearing component 300, and the connecting component 200 and the bearing component 300 are supported by the supporting component 100, so that the bearing component 300 can support the upper clamp body 400 to prevent the upper clamp body 400 from slipping, thereby reducing the difficulty of replacing the fixture and improving the safety during the fixture replacement process.

[0033] Please refer to Figures 1 to 3 In an embodiment of the present application, the bearing assembly 300 includes a bearing platform 310 and a connecting portion 320 connected to each other, the connecting portion 320 is used to connect to the connecting assembly 200, and a first rubber pad 330 is provided on the surface of the bearing platform 310 facing the upper clamp body 400.

[0034] Specifically, the carrying platform 310 is connected to the connecting assembly 200 through the connecting portion 320, and the surface of the carrying platform 310 facing the upper clamp body 400 is covered with a first rubber pad 330. When the carrying platform 310 supports the upper clamp body 400, the first rubber pad 330 can increase the friction between the upper clamp body 400 and the carrying platform 310 to prevent the upper clamp body 400 from sliding on the carrying platform 310. It can be understood that the first rubber pad 330 is connected to the surface of the carrying platform 310 by gluing.

[0035] In an embodiment of the present application, two parallel strip grooves 311 are provided at one end of the supporting platform 310 facing the upper clamping body 400, and two strip through holes corresponding to the strip grooves 311 are provided on the first rubber pad 330. The supporting component 300 also includes two positioning blocks 340, and the two positioning blocks 340 are installed in the strip grooves 311 through the strip through holes, and one end of the two positioning blocks 340 is located in the strip groove 311, and the other end protrudes from the surface of the first rubber pad 330.

[0036] Specifically, the length of the strip groove 311 matches the size of the lower notch of the upper clamp body 400, one end of the positioning block 340 passes through the strip through hole on the first rubber pad 330 and is buried in the strip groove 311, and the other end is exposed above the surface of the supporting platform 310 and the surface of the first rubber pad 330. When the supporting platform 310 supports the upper clamp body 400, the two positioning blocks 340 are used to unidirectionally fix the position of the upper clamp body 400 on the supporting platform 310, further preventing the upper clamp body 400 from slipping relative to the supporting platform 310.

[0037] In the embodiment of the present application, the positioning block 340 is a rectangular parallelepiped, and one end of the positioning block 340 located in the strip groove 311 is provided with a mounting inclined surface.

[0038] Specifically, the length of the rectangular positioning block 340 is consistent with the length of the strip groove 311, and the bottom surface of the positioning block 340 buried in one end of the strip groove 311 is provided with a mounting slope. When the staff installs the positioning block 340, the mounting slope can enable the positioning block 340 to quickly slide into the strip groove 311, which facilitates the staff to assemble the positioning block 340 and reduces the difficulty of assembling the positioning block 340.

[0039] In an embodiment of the present application, the supporting assembly 300 also includes a first rotating handle 350 and a second rotating handle 360, and the side surfaces of the supporting platform 310 are relatively provided with a first connecting hole and a second connecting hole, one end of the first rotating handle 350 is inserted into the first connecting hole and is connected to the supporting platform 310, and the other end side surface is provided with a first anti-slip knurling 351, and one end of the second rotating handle 360 ​​is inserted into the second connecting hole and is connected to the supporting platform 310, and the other end side surface is provided with a second anti-slip knurling 361.

[0040] Specifically, the first rotating handle 350 and the second rotating handle 360 ​​are respectively inserted into the first connection hole and the second connection hole and connected to the carrying platform 310. It is understandable that the first rotating handle 350 can be connected to the carrying platform 310 by welding, by gluing, or by providing an internal thread in the first connection hole and providing an external thread at the portion of the first rotating handle 350 that penetrates the first connection hole, and the first rotating handle 350 is connected to the carrying platform 310 by threaded connection. Similarly, the connection method of the second rotating handle 360 ​​and the carrying platform 310 will not be repeated. Furthermore, a first anti-slip knurling 351 is provided on the side surface of the end of the first rotating handle 350 that is not inserted into the first connecting hole, and similarly, a second anti-slip knurling 361 is provided on the side surface of the end of the second rotating handle 360 ​​that is not inserted into the first connecting hole. The operator holds the first anti-slip knurling 351 and the second anti-slip knurling 361 to rotate the supporting platform 310, thereby further driving the upper clamping body 400 to rotate. The first anti-slip knurling 351 and the second anti-slip knurling 361 can prevent the operator's hands from slipping off the first rotating handle 350 and the second rotating handle 360 ​​during the rotation process.

[0041] Please refer to Figures 1 to 6 In an embodiment of the present application, it is characterized in that the connecting component 200 includes a connecting platform 210 and an extension portion 220 that are connected to each other, a first threaded hole 230 is opened in the center of the connecting platform 210 and the extension portion 220, a first external thread is provided on the side of the connecting portion 320, and the connecting portion 320 is threadedly connected to the first threaded hole 230.

[0042] Specifically, the connecting portion 320 of the bearing component 300 is threadedly connected to the connecting component 200 through the first external thread and the first threaded hole 230. The extension portion 220 deepens the depth of the first threaded hole 230, making the mating portion of the first external thread and the first threaded hole 230 longer, further making the connection between the bearing component 300 and the connecting component 200 more stable.

[0043] In an embodiment of the present application, at least three evenly distributed square grooves 211 are opened on the lower surface of the connecting platform 210, and the support assembly 100 includes at least three support legs 110, and the support legs 110 include a limit rod 111, a tilt rod 112 and a support rod 113 that are interconnected, and the limit rod 111 is installed in the square groove 211, and the support rod 113 is supported on the machine base 500.

[0044] Specifically, the limiting rod 111 is clamped in the square groove 211, and the tilting rod 112 can increase the tilting angle of the supporting leg 110 and expand the distance between each supporting rod 113, so that the supporting leg 110 can more stably support the connecting assembly 200 and the bearing assembly 300.

[0045] In an embodiment of the present application, the support assembly 100 also includes an anti-slip pad 120, on which a stud 130 is provided. A second threaded hole 113b is provided on the end surface of the support rod 113, and the anti-slip pad 120 is threadedly connected to the second threaded hole 113b through the stud 130.

[0046] Specifically, the anti-slip pad 120 is threadedly connected to the second threaded hole 113b through the stud 130, so that the anti-slip pad 120 is set on the end face of the support rod 113 and contacts the base 500 to prevent the support assembly 100 from slipping when supporting the upper clamp body 400, and by rotating and adjusting the anti-slip pad 120, the height of the support leg 110 can be fine-tuned to ensure that the upper surface of the supporting platform 310 is in a horizontal state.

[0047] In the embodiment of the present application, the limiting rod 111 and the supporting rod 113 are parallel, and the angle between the supporting rod 113 and the tilting rod 112 is 120° to 150°.

[0048] Specifically, the angle between the support rod 113 and the tilt rod 112 cannot be too small. When the angle is too small, the bearing capacity of the support leg 110 is greatly reduced. The angle between the support rod 113 and the tilt rod 112 cannot be too large. When the angle is too large, the distance between each support rod 113 will be reduced, reducing the stability of the support assembly 100. Therefore, in this embodiment, the angle between the support rod 113 and the tilt rod 112 is preferably 120°~150°, which not only ensures the bearing capacity of the support leg 110, but also ensures the stability of the support assembly 100.

[0049] In the embodiment of the present application, the support leg 110, the connection assembly 200 and the bearing platform 310 are made of steel. It should be noted that there are many types of steel, and different types of steel have different characteristics, for example:

[0050] Carbon Steel: Carbon steel is one of the most common and widely used steels. Its main components are carbon and iron, with small amounts of other alloying elements. Carbon steel has good strength, toughness and machinability.

[0051] Stainless steel: Stainless steel is a type of steel containing chromium, nickel and other alloying elements that has excellent corrosion resistance and high temperature strength.

[0052] Alloy steel: Alloy steel is a steel material whose properties are changed by adding other alloying elements to the steel. Common alloying elements include molybdenum, chromium, nickel, titanium, etc. Alloy steel has the characteristics of high strength, wear resistance, heat resistance, etc.

[0053] Tool steel: Tool steel is a type of steel specifically used to make tools and molds. It has high hardness, wear resistance and heat resistance, and can work under high temperature and heavy load conditions.

[0054] High-speed steel: High-speed steel is a special steel used for cutting tools and knives. It has high hardness, wear resistance and heat resistance, and can maintain the cutting performance of the tool under high-speed cutting and high-temperature environment.

[0055] In this embodiment, there is no specific restriction on the material of the support leg 110, the connection assembly 200 and the bearing platform 310, which can be comprehensively considered based on actual needs, steel properties and costs.

[0056] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. It should be pointed out that for ordinary technicians in this technical field, the present application can have various changes and modifications. Without departing from the principles of the present disclosure, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the scope of protection of the present disclosure.

Claims

1. An electro-hydraulic servo fatigue test fixture replacement auxiliary tool, characterized in that: It includes a supporting component, a connecting component and a bearing component, wherein the bearing component is connected to the supporting component through the connecting component, the bearing component is used to bear the upper clamping body, and the supporting component is used to support the connecting component, thereby supporting the bearing component; The bearing assembly comprises a bearing platform and a connecting portion connected to each other, the connecting portion is used to connect with the connecting assembly, and a first rubber pad is arranged on the surface of the bearing platform facing the upper clamping body; The bearing platform is provided with two parallel strip grooves at one end facing the upper clamping body, the first rubber pad is provided with two strip through holes corresponding to the strip grooves, the bearing assembly further comprises two positioning blocks, the two positioning blocks are installed in the strip grooves through the strip through holes, one end of the two positioning blocks is located in the strip groove, and the other end protrudes from the surface of the first rubber pad; The positioning block is a rectangular parallelepiped, and one end of the positioning block located in the strip groove is provided with a mounting inclined surface; The bearing assembly also includes a first rotating handle and a second rotating handle, and the side surfaces of the bearing platform are provided with a first connecting hole and a second connecting hole relative to each other. One end of the first rotating handle passes through the first connecting hole and is connected to the bearing platform, and the other end side surface is provided with a first anti-slip knurling. One end of the second rotating handle passes through the second connecting hole and is connected to the bearing platform, and the other end side surface is provided with a second anti-slip knurling.

2. The electro-hydraulic servo fatigue test fixture replacement auxiliary tool according to claim 1 is characterized in that: The connection assembly includes a connection platform and an extension part connected to each other, a first threaded hole is opened in the center of the connection platform and the extension part, a first external thread is arranged on the side of the connection part, and the connection part is threadedly connected to the first threaded hole.

3. The electro-hydraulic servo fatigue test fixture replacement auxiliary tool according to claim 2, characterized in that: The lower surface of the connecting platform is provided with at least three evenly distributed square grooves, the supporting assembly includes at least three supporting legs, the supporting legs include a limiting rod, a tilting rod and a supporting rod connected to each other, the limiting rod is installed in the square groove, and the supporting rod is supported on the machine base.

4. The electro-hydraulic servo fatigue test fixture replacement auxiliary tool according to claim 3 is characterized in that: The support assembly further comprises an anti-skid pad, a stud is arranged on the anti-skid pad, a second threaded hole is opened on the end surface of the support rod, and the anti-skid pad is threadedly connected with the second threaded hole through the stud.

5. The electro-hydraulic servo fatigue test fixture replacement auxiliary tool according to claim 4, characterized in that: The limiting rod is parallel to the supporting rod, and the included angle between the supporting rod and the tilting rod is 120° to 150°.

6. The electro-hydraulic servo fatigue test fixture replacement auxiliary tool according to claim 5, characterized in that: The support legs, the connection components and the bearing platform are made of steel.

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