Welding strength fatigue test equipment

Abstract

The utility model discloses welding strength fatigue test equipment which comprises a base and a cross beam which are oppositely arranged, a plurality of stand columns are arranged between the base and the cross beam, a lower support is arranged on the base, a first containing cavity is formed in the lower support, and a clamp is arranged in the first containing cavity. A first driving device is arranged on the cross beam, an upper support is arranged on an output shaft of the first driving device, a second containing cavity is formed in the upper support, a clamp is arranged in the second containing cavity, the clamp comprises two jaws, and the jaws of the clamp are detachable and replaceable. The jaws of the upper clamp and the lower clamp of the equipment are replaceable, the jaws can be taken out from the clamps for replacement, the equipment can clamp different types of welding materials, the situation that the equipment is in an idle state when the single test requirement is small is avoided, the working efficiency is improved through the design, the application range of the equipment becomes wide, and the equipment is suitable for popularization and application. And a part of limitation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fatigue testing equipment technology, and mainly to a welding strength fatigue testing equipment. Background Technology

[0002] Welded steel bars are commonly used in various buildings. Welded steel bars need to undergo welding strength fatigue tests to ensure that the welded steel bars meet the requirements of mechanical properties such as static load, tension, compression, bending, shear, tearing, and peeling.

[0003] Most current welding strength fatigue testing equipment includes a top seat, a base, and a drive device. The top seat is equipped with an upper clamp, and the base is equipped with a lower clamp. One end of the reinforcing bar is clamped by the upper clamp, and the other end is clamped by the lower clamp. After the reinforcing bar is clamped, the drive device can apply tensile stress to the reinforcing bar.

[0004] Regarding the aforementioned technologies, the inventors believe that traditional welding strength fatigue testing, due to the simple structure and fixed position of its fixtures, can only be used for performance testing of a single specimen. When the testing demand for a certain type of specimen is small, the equipment is idle and has limited functionality. Utility Model Content

[0005] The present invention aims to solve some problems existing in the prior art. Therefore, the purpose of the present invention is to provide a welding strength fatigue testing device.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] A welding strength fatigue testing device includes a base and a crossbeam arranged opposite each other, with several columns arranged between the base and the crossbeam. A lower support is provided on the base, and a first receiving cavity is formed on the lower support. A clamp is provided in the first receiving cavity. A first driving device is provided on the crossbeam, and an upper support is provided on the output shaft of the first driving device. A second receiving cavity is formed on the upper support, and a clamp is provided in the second receiving cavity. The clamp includes two jaws, and the jaws of the clamp are detachable and replaceable.

[0008] Based on the above solution, the clamp further includes two clamping plates, a pull plate, and a second driving device. The inner side of the clamping plate has two through slots, namely the first through slot and the second through slot. The jaws are detachably installed in the first through slot. One end of the pull plate is located in the second through slot, and the other end is connected to the output shaft of the second driving device. The second driving device is hidden in the lower support or the upper support.

[0009] Furthermore, based on the above scheme, a connecting part is provided on one side of the jaws, and the connecting part is adapted to the first through groove.

[0010] Furthermore, based on the above solution, the connecting part is dovetail-shaped, and the first through groove is also dovetail-shaped.

[0011] Furthermore, based on the above scheme, the side walls of the first and second receiving cavities are inclined walls with the same inclination.

[0012] Furthermore, based on the above scheme, guide members are provided on both sides of the first and second receiving cavities, and the card plate is located between the two guide members.

[0013] Furthermore, based on the above solution, a first guide portion is provided on both sides of the card plate, and a second guide portion is provided on the inner side of the guide member, wherein the second guide portion is adapted to the first guide portion.

[0014] Furthermore, based on the above scheme, a locking slot is provided on the other side of the jaws, and the locking slots on the two jaws are opposite each other.

[0015] Furthermore, based on the above scheme, guide beams are provided on both sides of the upper support, and guide grooves are provided at the corners of the guide beams, the guide grooves being adapted to the column.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The upper and lower clamps of this equipment have replaceable jaws, which can be removed and replaced. This allows the equipment to hold different types of welding materials, preventing it from being idle when there is little demand for a single test. This design not only improves work efficiency but also broadens the scope of application of the equipment and reduces some limitations.

[0018] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a perspective view of the welding strength fatigue testing equipment of this utility model;

[0020] Figure 2 This is a front view of the welding strength fatigue testing equipment of this utility model;

[0021] Figure 3 This utility model Figure 1 Enlarged view of point A in the image;

[0022] Figure 4 This is a cross-sectional view of the lower support of this utility model.

[0023] Figure label:

[0024] 1. Base, 2. Crossbeam, 3. Column, 4. Lower support, 41. First receiving cavity, 5. First driving device, 6. Upper support, 61. Second receiving cavity, 7. Clamp, 71. Jaw, 711. Connecting part, 712. Bayonet, 72. Clamping plate, 721. First through slot, 722. Second through slot, 723. First guide part, 73. Pull plate, 74. Second driving device, 8. Guide component, 81. Second guide part, 9. Guide crossbeam, 91. Guide groove. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0027] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0028] Please refer to the following for details. Figure 1-4A welding strength fatigue testing device includes a base 1 and a crossbeam 2 arranged opposite to each other. Four columns 3 are arranged between the base 1 and the crossbeam 2. The four columns 3 are fixed to the corners of the base 1 and the crossbeam 2 by bolts to connect the base 1 and the crossbeam 2. A lower support 4 is bolted on the base 1. A first receiving cavity 41 is opened on the lower support 4. A clamp 7 is arranged in the first receiving cavity 41. A first driving device 5 is arranged on the crossbeam 2. An upper support 6 is arranged on the output shaft of the first driving device 5. A second receiving cavity 61 is opened on the upper support 6. The clamp 7 in the second receiving cavity 61 is arranged in the second receiving cavity 61. The clamp 7 in the lower support 4 and the upper support 6 have the same structure.

[0029] Specifically, the clamp 7 includes two jaws 71, two clamping plates 72, a pull plate 73, and a second drive device 74. The jaws 71 are detachable and replaceable, with a connecting part 711 on one side. The clamping plates 72 have two through slots on their inner sides, namely a first through slot 721 and a second through slot 722. The connecting part 711 is adapted to the first through slot 721, and the jaws 71 are detachably installed in the first through slot 721. One end of the pull plate 73 is located in the second through slot 722, and the other end is connected to the output shaft of the second drive device 74. The second drive device 74 is hidden in the lower support 4 or the upper support 6.

[0030] In this embodiment, both the first driving device 5 and the second driving device 74 are hydraulic cylinders.

[0031] Based on the above technical means, when the operator replaces the jaws 71, they only need to push the jaws 71 out of the clamping plate 72 to replace them. This allows the equipment to clamp different types of welding materials and prevents the equipment from being idle when the demand for a single test is small. The jaws 71 and the clamping plate 72 are not connected by fasteners, which facilitates the replacement of the jaws 71.

[0032] Furthermore, the connecting part 711 is dovetail-shaped, and the first through groove 721 is also dovetail-shaped.

[0033] Furthermore, the side walls of the first receiving cavity 41 and the second receiving cavity 61 are inclined walls with the same inclination, so that the cross-sections of the first receiving cavity 41 and the second receiving cavity 61 present an isosceles trapezoidal shape.

[0034] Furthermore, guide members 8 are provided on both sides of the first receiving cavity 41 and the second receiving cavity 61. The guide members 8 are also in an inclined state, and the clamping plate 72 is located between the two guide members 8. In this way, when the second driving device 74 drives the pull plate 73 to move up and down, it will also drive the clamping plate 72 to move along the inclined direction of the guide member 8, thereby causing the two jaws 71 to come together or move away.

[0035] Furthermore, the card plate 72 is provided with a first guide portion 723 on both sides, and a second guide portion 81 is provided on the inner side of the guide member 8. The second guide portion 81 is adapted to the first guide portion 723. Specifically, the first guide portion 723 is a guide bar, and the second guide portion 81 is a guide groove 91. The first guide portion 723 and the second guide portion 81 play a guiding role, so that the card plate 72 will not deviate from the predetermined movement trajectory.

[0036] Furthermore, a bayonet 712 is provided on the other side of the jaw 71. The bayonet 712 on the two jaws 71 are opposite each other, and the welding part to be tested can be clamped between the two bayonet 712.

[0037] In this embodiment, the jaw 712 is triangular and can be used to clamp cylindrical welded parts to be tested, such as steel bars welded together. The jaw 712 can also be other shapes such as semi-ellipse, rectangle or polygon, and can be customized according to the welded parts to be tested.

[0038] Furthermore, the upper support 6 is provided with outwardly extending guide beams 9 on both sides, and guide grooves 91 are provided at the corners of the guide beams 9. The guide grooves 91 are adapted to the column 3, and the guide beams 9 and the column 3 cooperate to play a guiding role.

[0039] This utility model relates to a welding strength fatigue testing device, the working principle of which is explained in conjunction with the accompanying drawings:

[0040] First, select a suitable jaw 71 and assemble it onto the jaw 71 by inserting the connecting part 711 into the first through slot 721; then place both ends of the weldment to be tested into the jaw 712, start the second drive device 74, the output shaft of the second drive device 74 extends, driving the clamping plate 72 to move outward, thereby reducing the distance between the two jaws 71 and clamping the ends of the weldment to be tested; then start the first drive device 5, the output shaft of the first drive device 5 retracts, and a tensile test is performed on the weldment to be tested.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding strength fatigue testing device, comprising a base and a crossbeam arranged opposite to each other, wherein a plurality of columns are arranged between the base and the crossbeam, characterized in that, The base is provided with a lower support, the lower support has a first receiving cavity, the first receiving cavity is provided with a clamp, the crossbeam is provided with a first driving device, the output shaft of the first driving device is provided with an upper support, the upper support has a second receiving cavity, the second receiving cavity is provided with a clamp, the clamp includes two jaws, the jaws of the clamp are detachable and replaceable.

2. The weld strength fatigue test apparatus according to claim 1, characterized by, The clamp also includes two clamping plates, a pull plate, and a second driving device. The inner side of the clamping plate has two through slots, namely a first through slot and a second through slot. The jaws are detachably installed in the first through slot. One end of the pull plate is located in the second through slot, and the other end is connected to the output shaft of the second driving device. The second driving device is hidden in the lower support or the upper support.

3. The weld strength fatigue test apparatus of claim 2, wherein, A connecting part is provided on one side of the jaws, and the connecting part is adapted to the first through groove.

4. The weld strength fatigue test apparatus of claim 3, wherein The connecting part is dovetail-shaped, and the first through groove is also dovetail-shaped.

5. The weld strength fatigue test apparatus of claim 1, wherein, The side walls of the first and second accommodating cavities are inclined walls with the same inclination.

6. The weld strength fatigue test apparatus of claim 5, wherein, Guide members are provided on both sides of the first and second receiving cavities, and the card plate is located between the two guide members.

7. The weld strength fatigue test apparatus of claim 6, wherein, The card plate has a first guide portion on both sides, and the guide member has a second guide portion on its inner side, the second guide portion being adapted to the first guide portion.

8. The weld strength fatigue test apparatus of claim 1, wherein, A locking slot is provided on the other side of the jaws, and the locking slots on the two jaws face each other.

9. The weld strength fatigue test apparatus of claim 1, wherein, The upper support is provided with guide beams on both sides, and guide grooves are provided at the corners of the guide beams, which are adapted to the column.

Images