A test point adjustable tensile device for testing

Abstract

The application discloses a test point adjustable tensile device for testing, which comprises a base, a pair of stretching frames, two stretching frames of the same pair being arranged on the base, a cross frame arranged between the two stretching frames of the same pair, a stretching drive arranged on the cross frame, a moving assembly arranged on the base, a bottom clamp arranged on the bottom clamp and used for clamping workpieces to be tested, and a top connecting piece connected with the stretching drive and the workpieces to be tested. The bottom clamp is used for clamping multiple workpieces to be tested simultaneously, so that the workpieces to be tested need not be repeatedly clamped and disassembled, and the testing efficiency is improved. The position of the bottom clamp is adjusted in real time through the moving assembly, so that the test point of the workpiece to be tested is coincident with the axis of the stretching drive, and the testing precision is ensured.

Description

Technical Field

[0001] This application relates to the field of tensile testing equipment, and in particular to a tensile testing equipment with adjustable test points. Background Technology

[0002] Tensile testing equipment is used to inspect the tensile strength of workpieces to ensure that the strength of the issued workpieces meets the design requirements and to avoid issuing defective workpieces, which may pose safety hazards after use.

[0003] In related technologies, some tensile testing equipment can only test the workpieces one by one, requiring repeated disassembly of the workpieces, which affects testing efficiency. On the other hand, tensile testing equipment that can perform batch testing will have low testing accuracy because the axis of the tensile drive does not coincide with the test points of most of the workpieces.

[0004] Therefore, it is necessary to propose a tensile testing device with adjustable test points, which has high testing efficiency and high testing accuracy, and this has become an important technical problem that urgently needs to be solved. Utility Model Content

[0005] This application provides a tensile testing device with adjustable test points, which aims to solve the problems in the prior art where some tensile testing devices can only test the workpieces one by one, requiring repeated disassembly of the workpieces and affecting testing efficiency, while tensile testing devices that can perform batch testing suffer from low testing accuracy because the axis of the tensile drive does not coincide with the test points of most of the workpieces.

[0006] To achieve the above objectives, this application proposes a tensile testing device with adjustable test points, comprising: a base; a pair of tensile frames, the two tensile frames of the same pair being disposed on the base; a crossbeam, the crossbeam being disposed between the two tensile frames of the same pair; a tensile drive, the tensile drive being disposed on the crossbeam; a moving component, the moving component being disposed on the base; a bottom clamp, the bottom clamp being disposed on the bottom clamp, the bottom clamp being used to clamp the workpiece to be tested; and a top connector, the top connector being connected to the tensile drive and the top connector being connected to the workpiece to be tested.

[0007] In some embodiments, the bottom clamp includes: a clamp plate with vertical plates at both ends; a pair of clamp blocks, the two clamp blocks being movably disposed on the clamp plate; and two clamping screws, the two clamping screws being screwed to the vertical plates respectively, the end shaft of one clamping screw being connected to one clamp block, and the end shaft of the other clamping screw being connected to another clamp block.

[0008] In some embodiments, the bottom clamp further includes: a first slide rail disposed on the clamp plate, and a pair of clamp blocks each having a first slide groove adapted to the first slide rail.

[0009] In some embodiments, the moving component includes: a transverse plate, a clamping plate movably disposed on the transverse plate; a transverse screw, rotatably disposed on the transverse plate; and a first nut block screwed to the transverse screw and connected to the clamping plate.

[0010] In some embodiments, the moving component further includes a second slide rail disposed on the transverse plate, and the clamping plate is provided with a second slide groove adapted to the second slide rail.

[0011] In some embodiments, the moving component further includes: a longitudinal moving plate, a transverse moving plate movably disposed on the longitudinal moving plate, the longitudinal moving plate being connected to a base; a longitudinal moving screw, the longitudinal moving screw being rotatably disposed on the longitudinal moving plate; and a second nut block, the second nut block being screwed to the longitudinal moving screw and connected to the transverse moving plate.

[0012] In some embodiments, the moving component further includes a third slide rail disposed on the longitudinal sliding plate, and the transverse sliding plate is provided with a third slide groove adapted to the third slide rail.

[0013] This application proposes a tensile testing device with adjustable test points, comprising: a base, a pair of tensile frames, a crossbeam, a tensile drive, a moving component, a bottom clamp, and a top connector. The two tensile frames are disposed on the base; the crossbeam is disposed between the two tensile frames; the tensile drive is disposed on the crossbeam; the moving component is disposed on the base; the bottom clamp is disposed on the moving component and is used to clamp the workpiece to be tested; the top connector is connected to the tensile drive and the workpiece to be tested. When performing tensile tests on multiple workpieces at once, the bottom clamp clamps multiple workpieces at a time. The position of the bottom clamp is adjusted by the moving component so that the test point of one workpiece coincides with the axis of the tensile drive. At this time, the workpiece is connected to the top connector, and the tensile drive outputs a preset tensile force to complete the test. After the test, the connection between the top connector and the workpiece is released, and the position of the bottom clamp is adjusted by the moving component so that the test point of another workpiece coincides with the axis of the tensile drive. The above steps are repeated to complete the test of another workpiece. By simultaneously clamping multiple workpieces to be tested with the bottom fixture, the need to repeatedly clamp and disassemble the workpieces to be tested is avoided, thus improving testing efficiency. The position of the bottom fixture is adjusted in real time by the moving component, so that the test point of the workpiece to be tested coincides with the axis of the tension drive, ensuring testing accuracy. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a three-dimensional structural diagram of a tensile testing device with adjustable test points according to an embodiment of this application; Figure 2 This is a magnified view of part A in section 1; Figure 3 This is a three-dimensional structural diagram of the moving component, bottom clamp, and top connector in one embodiment of this application; Figure 4 This is a magnified view of part B in section 3.

[0015] In the diagram: 1. Base; 2. Tension frame; 3. Horizontal frame; 4. Tension drive; 5. Output end; 6. Connecting ring; 7. Detachable D-ring; 81. Clamping screw; 82. Clamping block; 83. Clamping plate; 84. Longitudinal transfer plate; 85. Longitudinal transfer screw; 86. Horizontal transfer plate; 87. First slide groove; 88. Second slide rail; 89. First nut block; 810. Second slide groove; 811. Vertical plate; 812. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0017] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0018] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0019] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0020] See Figure 1 and Figure 2 As shown, this application proposes a tensile testing device with adjustable test points, comprising: a base 1; a pair of tensile frames 2, the two tensile frames 2 of the same pair being disposed on the base 1; a crossbeam 3, the crossbeam 3 being disposed between the two tensile frames 2 of the same pair; a tensile drive 4, the tensile drive 4 being disposed on the crossbeam 3; a moving assembly, the moving assembly being disposed on the base 1; a bottom clamp, the bottom clamp being disposed on the moving assembly, the bottom clamp being used to clamp the workpiece to be tested; and a top connector, the top connector being connected to the tensile drive 4 and the top connector being connected to the workpiece to be tested.

[0021] The base 1 is the structural foundation of a tensile testing device with adjustable test points. All other structures on the device are directly or indirectly mounted on the base 1. A pair of tension frames 2 form the structural foundation for the crossbeam 3 and the tension drive 4. A moving component is mounted on the base 1, and a bottom clamp is mounted on the moving component. The bottom clamp holds one end of the workpiece to be tested, and a top connector connects the other end. The tension drive 4 outputs tensile force to complete the tensile test on the workpiece. When the test point needs adjustment, the top connector is released from the workpiece, the position of the bottom clamp is adjusted using the moving component, and then the top connector is reconnected to the workpiece to complete the test point adjustment.

[0022] Specifically, when performing tensile tests on batches of workpieces, the bottom clamp holds multiple workpieces at once. The position of the bottom clamp is adjusted by the moving component until the test point of one workpiece coincides with the axis of the tensile drive 4. At this point, the workpiece is connected to the top connector, and the tensile drive 4 outputs a preset tensile force to complete the test. After the test, the connection between the top connector and the workpiece is released, and the position of the bottom clamp is adjusted by the moving component until the test point of another workpiece coincides with the axis of the tensile drive 4. This process is repeated to complete the test of another workpiece. Holding multiple workpieces simultaneously with the bottom clamp avoids the need for repeated clamping and unclamping, improving testing efficiency. The real-time adjustment of the bottom clamp position by the moving component ensures that the test point of the workpiece to be tested coincides with the axis of the tensile drive 4, guaranteeing testing accuracy.

[0023] In detail, the tensile drive 4 is a hydraulic cylinder, and an output end 5 is provided at the end of the tensile drive 4. The output end 5 is connected to the top connector. The base 1 is also provided with a hydraulic station and a control panel for controlling the tensile test process. The top connector is used to detachably connect one end of the workpiece to be tested. In this embodiment, the specific structure of the top connector is not limited, as long as it can realize the function of detachably connecting one end of the workpiece to be tested. Here, a top connector structure is proposed. Specifically, the top connector includes a connecting ring 6, which is screwed to the output end 5 of the tensile drive 4. The connecting ring 6 is connected to a detachable D-ring, and one end of the workpiece to be tested is provided with a lifting point adapted to the detachable D-ring.

[0024] The base 1, tension frame 2, and cross frame 3 are made of corrosion-resistant alloys such as stainless steel, which have good mechanical properties and excellent corrosion resistance, helping a test tension device with adjustable test points to adapt to various harsh operating environments.

[0025] See Figure 1 , Figure 3 and Figure 4As shown, in some embodiments, the bottom clamp includes: a clamping plate 83, with vertical plates 812 at both ends of the clamping plate 83; the vertical plates 812 serve as the mounting base for the clamping screws 81; a pair of clamping blocks 82, the two clamping blocks 82 of the same pair are movably disposed on the clamping plate 83, and a clamping space is formed between the two clamping blocks 82 of the same pair, in which multiple workpieces to be tested are clamped; two clamping screws 81, the two clamping screws 81 are respectively screwed to the vertical plates 812, the end shaft of one clamping screw 81 is connected to one clamping block 82, and the end shaft of the other clamping screw 81 is connected to another clamping block 82, the two clamping screws 81 respectively control the two clamping blocks 82, and by controlling the two clamping blocks 82 to move closer to each other, multiple workpieces to be tested can be stably clamped.

[0026] In this embodiment, preferably, the opposing surfaces of the two clamping blocks 82 are provided with a rubber layer. The rubber layer can effectively prevent the clamping blocks 82 from damaging the workpiece to be tested, and the rubber layer will undergo adaptive deformation under the action of extrusion pressure, thereby making the clamping of the two clamping blocks 82 on the multiple workpieces to be tested inside more stable. More preferably, the opposing surfaces of the two clamping blocks 82 are provided with a number of protrusions to enhance the friction between the clamping blocks 82 and the workpiece to be tested, thereby enhancing the clamping stability.

[0027] See Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the bottom clamp further includes: a first slide rail, which is disposed on the clamping plate 83. The clamping plate 83 has first slide rails on both sides, and each pair of clamping blocks 82 is provided with a first slide groove 88 that matches the first slide rail. The two clamping blocks 82 also have first slide grooves 88 that match the first slide rails on both sides. The cooperation between the first slide grooves 88 and the first slide rails improves the stability of the movement of the clamping blocks 82.

[0028] See Figure 1 , Figure 3 and Figure 4As shown, in some embodiments, the moving component includes: a transverse plate 86, on which a clamping plate 83 is movably disposed; the transverse plate 86 serves as the transverse base for the clamping plate 83. Here, the width direction of the clamping plate 83 is defined as transverse, and the length direction of the clamping plate 83 is defined as longitudinal. The clamping plate 83 can reciprocate laterally on the transverse plate 86. A transverse screw 87 is rotatably disposed on the transverse plate 86. A first nut block 810 is screwed to the transverse screw 87 and connected to the clamping plate 83. The transverse plate 86 has a cavity for the first nut block 810 to move. The first nut block 810 is preferably integrally formed with the clamping plate 83. The first nut block 810 has a through hole with an external thread adapted to the transverse screw 87. Rotating the transverse screw 87 drives the first nut block 810 to reciprocate along the transverse screw 87, thereby causing the clamping plate 83 to reciprocate along the transverse plate 86. Changing the lateral position of the clamping plate 83 changes the lateral position of the bottom clamp.

[0029] See Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the moving component further includes a second slide rail 89, which is disposed on the transverse plate 86. The transverse plate 86 has two sides with the second slide rail 89, and the clamping plate 83 has a second groove 811 adapted to the second slide rail 89. The clamping plate 83 has second grooves 811 adapted to the second slide rail 89 on both sides. The cooperation between the second slide rail 89 and the second groove 811 improves the transverse stability of the clamping plate 83.

[0030] See Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the moving assembly further includes: a longitudinal moving plate 84, a transverse moving plate 86 movably disposed on the longitudinal moving plate 84, and the longitudinal moving plate 84 connected to the base 1; the longitudinal moving plate 84 serves as the longitudinal moving foundation for the transverse moving plate 86, and a double-ended connector is also provided between the longitudinal moving plate 84 and the base 1, the double-ended connector including two end plates and a connecting plate located between the two ends, one end plate being bolted to the longitudinal moving plate 84, and the other end plate being connected to the base plate. A longitudinal moving screw 85 is rotatably disposed on the longitudinal moving plate 84; a second nut block is screwed to the longitudinal moving screw 85 and connected to the transverse moving plate 86. The second nut block is integrally formed with the transverse plate 86. The second nut block is provided with a through hole, and the through hole is provided with an internal thread adapted to the longitudinal screw 85. The longitudinal plate 84 is provided with a cavity for the second nut block to move. By rotating the longitudinal screw 85, the second nut block can be driven to reciprocate along the longitudinal screw 85, thereby driving the transverse plate 86 to reciprocate along the longitudinal plate 84, changing the longitudinal position of the transverse plate 86, thereby changing the longitudinal position of the clamping plate 83, and achieving the purpose of adjusting the longitudinal position of the bottom clamp.

[0031] In this embodiment, the lateral position of the bottom fixture is adjusted by the transverse plate 86 and the corresponding structure, and the longitudinal position of the bottom fixture is adjusted by the longitudinal plate 84 and the corresponding structure, so that the bottom fixture can be moved to any position on the plane, making it easy for the test point of the workpiece to be tested on the bottom fixture to coincide with the axis of the tension drive 4.

[0032] See Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the moving component further includes a third slide rail, which is disposed on the longitudinal sliding plate 84. The longitudinal sliding plate 84 has third slide rails on both sides, and the transverse sliding plate 86 has a third slide groove adapted to the third slide rail. The third slide groove on both sides of the transverse sliding plate 86, adapted to the third slide rail, ensures the stability of the longitudinal movement of the transverse sliding plate 86 through the cooperation of the third slide rail and the third slide groove.

[0033] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A tensile testing device with adjustable test points, characterized in that, include: Base (1); A pair of tension frames (2), the two tension frames (2) of the same pair are disposed on the base (1); A crossbeam (3) is disposed between two tension frames (2) of the same pair; A tension drive (4) is disposed on the crossbeam (3); A movable component is disposed on the base (1); A bottom clamp is disposed on the movable component and is used to clamp the workpiece to be tested; Top connector, the top connector is connected to the tension drive (4), and the top connector is connected to the workpiece to be tested.

2. The tensile testing device with adjustable test points according to claim 1, characterized in that, The bottom clamp includes: A clamp plate (83) is provided with vertical plates (812) at both ends; A pair of clamping blocks (82), the two clamping blocks (82) of the same pair are movably disposed on the clamping plate (83); Two clamping screws (81) are screwed to the vertical plate (812) respectively. The end shaft of one clamping screw (81) is connected to one clamping block (82), and the end shaft of the other clamping screw (81) is connected to another clamping block (82).

3. The tensile testing device with adjustable test points according to claim 1, characterized in that, The bottom clamp also includes: The first slide rail is disposed on the clamp plate (83), and each of the pair of clamp blocks (82) is provided with a first slide groove (88) adapted to the first slide rail.

4. The tensile testing device with adjustable test points according to claim 2, characterized in that, The moving component includes: A transverse plate (86), wherein the clamping plate (83) is movably disposed on the transverse plate (86); A transverse screw (87) is rotatably mounted on the transverse plate (86). The first nut block (810) is screwed to the transverse screw (87) and connected to the clamp plate (83).

5. A tensile testing device with adjustable test points according to claim 4, characterized in that, The moving component also includes: The second slide rail (89) is disposed on the transverse plate (86), and the clamp plate (83) is provided with a second slide groove (811) adapted to the second slide rail (89).

6. A tensile testing device with adjustable test points according to claim 4, characterized in that, The moving component also includes: A longitudinal sliding plate (84) is provided, and a transverse sliding plate (86) is movably disposed on the longitudinal sliding plate (84), and the longitudinal sliding plate (84) is connected to the base (1); A longitudinal sliding screw (85) is rotatably mounted on the longitudinal sliding plate (84). The second nut block is screwed to the longitudinal sliding screw (85) and connected to the transverse sliding plate (86).

7. A tensile testing device with adjustable test points according to claim 6, characterized in that, The moving component also includes: The third slide rail is disposed on the longitudinal sliding plate (84), and the transverse sliding plate (86) is provided with a third slide groove adapted to the third slide rail.

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