Sheet metal part welding strength testing device

Abstract

The utility model discloses a sheet metal part welding strength testing arrangement, include: installation base, the top fixed connection of installation base has vertical frame, the inside wall of vertical frame one side is equipped with the sliding slot, the top rotatory connection of installation base has the adjusting assembly, and the adjusting assembly is used for the height adjustment of sheet metal part top clamping mechanism, and the middle fixed connection of installation base top has the loading mechanism, and the surface fixed connection of loading mechanism has the sensor, the utility model relates to testing arrangement technical field. The sheet metal part welding strength testing arrangement, utilize the setting of clamping assembly, adopt eccentric wheel clamping mechanism, can conveniently device fast operation, and eccentric structure provides mechanical amplification effect, and through smaller rotation force can obtain larger clamping force, ensures every time clamping always, avoids overpressure damage work piece, and the volume of eccentric wheel is smaller, can be installed in the narrow space range flexibly, reduces space occupation.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, specifically a sheet metal welding strength testing device. Background Technology

[0002] A sheet metal welding strength testing device is a mechanical testing equipment used to evaluate the quality of sheet metal welded joints. It can test the resistance of the weld by applying tensile or shear force to determine whether the weld is strong and reliable.

[0003] Patent CN216900005U discloses a testing device for the welding strength of sheet metal parts. The device includes an L-shaped plate. An electro-hydraulic push rod is mounted on one side of the L-shaped plate via a mounting bracket and bolts. A positioning plate is mounted on the bottom output end of the electro-hydraulic push rod via a mounting bracket and bolts. Positioning cylinders are mounted on the bottom periphery of the positioning plate via screws. A first spring is installed at the top of each positioning cylinder. A positioning rod is welded to the bottom of the first spring, and the bottom of the positioning rod passes through the positioning cylinder and is bolted to a pressure plate. Adjusting screws are installed on both sides of the top of the positioning plate via pre-drilled threaded holes. This patented device for testing the welding strength of sheet metal parts allows operators to manually rotate the adjusting screws according to the required strength of the sheet metal part, thereby further compressing or rebounding the second spring, and adjusting the force required for the pressure plate to move upward. This improves ease of use and is suitable for widespread promotion and application.

[0004] As shown in the above technology, this application mainly improves the tensile test. When testing the strength of ordinary sheet metal parts, the installation of the sheet metal parts takes a lot of time, which seriously affects the efficiency of the test work. In addition, the clamping structure at the top is generally a fixed mechanism with a fixed working height, which can only measure sheet metal parts of fixed specifications. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sheet metal welding strength testing device, which solves the problem that the installation of sheet metal parts during ordinary sheet metal strength testing requires a lot of time, seriously affecting the efficiency of the testing work. In addition, the clamping structure at the top is generally a fixed mechanism with a fixed working height, which can only measure sheet metal parts of fixed specifications.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sheet metal welding strength testing device, comprising:

[0007] The mounting base has a vertical frame fixedly connected to its top. A sliding groove is provided on one side of the inner wall of the vertical frame. An adjustment component is rotatably connected to the top of the mounting base. The adjustment component is used to adjust the height of the top clamping mechanism of the sheet metal part. A loading mechanism is fixedly connected to the middle of the top of the mounting base. A sensor is fixedly connected to the surface of the loading mechanism. Clamping components are fixedly connected to the top of the loading mechanism and the bottom of the adjustment component. The clamping components are used to stably clamp the welded sheet metal part.

[0008] Preferably, the adjustment assembly includes an adjustment shaft rotatably connected to the mounting base, and a handle is fixedly connected to the top end of the adjustment shaft.

[0009] Preferably, the surface of the adjusting shaft is threadedly connected to a top plate, and the two sides of the surface of the top plate are slidably connected to the inner surface of the sliding groove, and a lifting rod is fixedly connected to the bottom of the top plate.

[0010] Preferably, the clamping assembly includes an outer frame, a round shaft is rotatably connected to one side of the inner wall of the outer frame, an eccentric wheel is fixedly connected to the surface of the round shaft, a connecting ring is fixedly connected to the surface of the eccentric wheel, a hexagonal ring block is movably connected to the surface of the eccentric wheel, an embedding groove is formed on the inner wall of the hexagonal ring block, and a clamping plate is fixedly connected to one side of the hexagonal ring block.

[0011] Preferably, one end of the circular shaft passes through the outer frame and extends to one side of the outer frame, and a handle is fixedly connected to one end of the circular shaft, with a positioning groove provided on the surface of the handle.

[0012] Preferably, a connector block is fixedly connected to one side of the outer frame surface, and a screw rod is threadedly connected to the inner wall of the connector block.

[0013] This invention provides a sheet metal welding strength testing device. Compared with the prior art, it has the following advantages:

[0014] 1. This sheet metal welding strength testing device utilizes a clamping assembly with an eccentric wheel clamping mechanism, enabling convenient and rapid operation. The eccentric structure provides mechanical amplification, achieving a large clamping force with a small rotational force, ensuring consistent clamping and preventing overpressure damage to the workpiece. The eccentric wheel is small in size and can be flexibly integrated into confined spaces, reducing space occupation. The mechanism is simple in principle, typically consisting of an eccentric shaft, clamping blocks, and a stop structure. With fewer parts and lower wear, it solves the problem of time-consuming sheet metal installation during ordinary sheet metal strength testing, which severely impacts testing efficiency.

[0015] 2. This sheet metal welding strength testing device utilizes adjustable components. If the top clamping structure can adjust its working height, it can adapt to sheet metal samples of different thicknesses. The adjustable height ensures that the clamping point is always in contact with the center of the sample or a specific position, ensuring the correct direction of force. If the clamping height cannot be adjusted, the clamping point will deviate from the center of the weld, causing the shear / tensile force direction to shift. There is no need to equip a set of clamps for each sheet metal specification; this improves the versatility of the equipment and saves costs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the adjustment component of this utility model;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This utility model Figure 3 A magnified view of a portion of point A in the middle.

[0020] In the diagram: 1. Mounting base; 2. Vertical frame; 3. Sliding groove; 4. Adjustment assembly; 41. Adjustment shaft; 42. Top plate; 43. Lifting rod; 44. Handle; 5. Loading mechanism; 6. Sensor; 7. Clamping assembly; 71. Outer frame; 72. Round shaft; 73. Eccentric wheel; 74. Connecting ring; 75. Hexagonal ring block; 76. Embedded groove; 77. Clamping plate; 78. Handle; 79. Positioning groove; 710. Connecting block; 711. Screw rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides two technical solutions:

[0023] Example 1: A sheet metal welding strength testing device, comprising:

[0024] Mounting base 1, with a vertical frame 2 fixedly connected to its top. A sliding groove 3 is provided on one side of the inner wall of the vertical frame 2. An adjustment assembly 4 is rotatably connected to the top of mounting base 1, used for height adjustment of the sheet metal clamping mechanism. A loading mechanism 5, a hydraulic telescopic rod, is fixedly connected to the middle of the top of mounting base 1, providing downward tensile force. A sensor 6 (HBMU10M model) is fixedly connected to the surface of the loading mechanism 5. Clamping assemblies 7 are fixedly connected to both the top of the loading mechanism 5 and the bottom of the adjustment assembly 4, used for welding. The sheet metal parts are then stably clamped using clamping component 7, which employs an eccentric wheel clamping mechanism. This allows for convenient and rapid operation of the device. The eccentric structure provides mechanical amplification, enabling the generation of a large clamping force with a small rotational force, ensuring consistent clamping and preventing overpressure damage to the workpiece. The eccentric wheel is small in size and can be flexibly integrated into confined spaces, reducing space occupation. The mechanism is simple in principle, typically consisting of an eccentric shaft, clamping blocks, and a stop structure. With fewer parts and lower wear, it solves the problem of time-consuming installation of sheet metal parts during strength testing, which severely impacts testing efficiency.

[0025] Example 2 differs from Example 1 in that: a sheet metal welding strength testing device includes an adjusting component 4 comprising an adjusting shaft 41 rotatably connected to a mounting base 1. The adjusting shaft 41 is a threaded shaft, with a handle 44 fixedly connected to its top end. A top plate 42 is threadedly connected to the surface of the adjusting shaft 41, and both sides of the top plate 42 are slidably connected to the inner surface of a sliding groove 3. A lifting rod 43 is fixedly connected to the bottom of the top plate 42. The clamping component 7 includes an outer frame 71, with a round shaft 72 rotatably connected to one side of the inner wall of the outer frame 71. An eccentric wheel 73 is fixedly connected to the surface of the round shaft 72, and a connecting ring 74 is fixedly connected to the surface of the eccentric wheel 73. A hexagonal ring block 75 is movably connected to the surface of the eccentric wheel 73. An embedding groove 76 is formed on the inner wall of the hexagonal ring block 75, and the inner wall of the embedding groove 76 is adapted to the connecting ring 74. A clamping plate is fixedly connected to one side of the hexagonal ring block 75. 77. Friction protrusions are provided on one side of the surface of the clamping plate 77. One end of the round shaft 72 passes through the outer frame 71 and extends to one side of the outer frame 71. A handle 78 is fixedly connected to one end of the round shaft 72. A positioning groove 79 is opened on the surface of the handle 78. The positioning groove 79 is circular and evenly distributed on the surface of the handle 78. A connector block 710 is fixedly connected to one side of the surface of the outer frame 71. A screw rod 711 is threadedly connected to the inner wall of the connector block 710. By using the setting of the adjustment component 4, if the clamping structure at the top can adjust its working height, it can adapt to sheet metal samples of different thicknesses. The height adjustment can ensure that the clamping point is always in contact with the center of the sample or a specific position, ensuring the correct force direction. If the clamping height cannot be adjusted, the clamping point of the fixture will deviate from the center of the weld, which will cause the shear force / tension direction to shift. It is not necessary to equip a set of fixtures for each sheet metal specification; improve the versatility of the equipment and save costs.

[0026] The force sensor is installed at the front output end of the loading mechanism 5. The force sensor is installed between the front end of the loading mechanism 5 and the clamp. The actual force or pressure is generated by the movement and reaction of the front end of the piston rod.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] During operation, the top plate 42 is rotated according to the length of the sheet metal part. The adjustment shaft 41 rotates to drive the lifting rod 43 to move up and down. At the same time, the surface of the lifting rod 43 slides relative to the inner wall of the sliding groove 3, placing the sheet metal part in the middle position of the vertical frame 2. The inner shaft 72 of the outer frame 71 is rotated, which directly drives the eccentric wheel 73 and the connecting ring 74 to deflect. The inner wall of the hexagonal ring block 75 is embedded in the groove 76 and slides relative to the connecting ring 74. At the same time, the hexagonal ring block 75 and the clamping plate 77 are pushed to move towards the middle position of the vertical frame 2, keeping one side of the clamping plate 77 facing the surface of the sheet metal part. The clamping plate 77 on the surface of the sheet metal part clamps and fixes it stably. The loading mechanism 5 is retracted, and the sheet metal part is pulled down. The data generated by the sensor 6 is recorded, and the force change is recorded in real time. After the work is completed, the device is restored.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sheet metal welding strength testing device, characterized in that, include: The mounting base (1) has a vertical frame (2) fixedly connected to its top. A sliding groove (3) is provided on one side of the inner wall of the vertical frame (2). An adjustment component (4) is rotatably connected to the top of the mounting base (1). The adjustment component (4) is used to adjust the height of the top clamping mechanism of the sheet metal part. A loading mechanism (5) is fixedly connected to the middle of the top of the mounting base (1). A sensor (6) is fixedly connected to the surface of the loading mechanism (5). A clamping component (7) is fixedly connected to the top of the loading mechanism (5) and the bottom of the adjustment component (4). The clamping component (7) is used to perform stable clamping operation on the welded sheet metal part.

2. The sheet metal part weld strength testing apparatus of claim 1, wherein: The adjustment assembly (4) includes an adjustment shaft (41) rotatably connected to the mounting base (1), and a handle (44) is fixedly connected to the top end of the adjustment shaft (41).

3. The sheet metal part weld strength testing apparatus of claim 2, wherein: The surface of the adjusting shaft (41) is threadedly connected to a top plate (42), and the two sides of the surface of the top plate (42) are slidably connected to the inner surface of the sliding groove (3), and a lifting rod (43) is fixedly connected to the bottom of the top plate (42).

4. The sheet metal part weld strength testing apparatus of claim 2, wherein: The clamping assembly (7) includes an outer frame (71), a round shaft (72) is rotatably connected to one side of the inner wall of the outer frame (71), an eccentric wheel (73) is fixedly connected to the surface of the round shaft (72), a connecting ring (74) is fixedly connected to the surface of the eccentric wheel (73), a hexagonal ring block (75) is movably connected to the surface of the eccentric wheel (73), an embedding groove (76) is opened on the inner wall of the hexagonal ring block (75), and a clamping plate (77) is fixedly connected to one side of the hexagonal ring block (75).

5. The sheet metal part weld strength testing apparatus of claim 4, wherein: One end of the circular shaft (72) passes through the outer frame (71) and extends to one side of the outer frame (71). A handle (78) is fixedly connected to one end of the circular shaft (72), and a positioning groove (79) is provided on the surface of the handle (78).

6. The sheet metal welding strength testing device according to claim 4, characterized in that: A connector block (710) is fixedly connected to one side of the surface of the outer frame (71), and a screw rod (711) is threadedly connected to the inner wall of the connector block (710).

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