Weld joint tensile strength detection device

Abstract

The utility model relates to a device for detecting tensile strength of a welding seam. The device comprises a sliding block, a scale, a locking bolt and a main body, the sliding block is provided with a first protruding part, and the main body is provided with a second protruding part. The sliding block moves relative to the main body through the first protruding part and the second protruding part which are matched with each other. According to the utility model, the main bodies and the sliding blocks capable of moving relative to the main bodies are arranged, the main bodies are arranged at the first stretching end and the second stretching end of the tensile machine, and the relative distance between the sliding blocks is adjusted, so that the tensile strength of different structures can be detected; the problem that weld joint tensile strength data of a traditional test product cannot be accurately detected is solved.

Description

Technical Field

[0001] The utility model relates to the field of new energy vehicles, and in particular to a welding seam breaking force detection device. Background Art

[0002] In daily life, with the advancement of technology and the needs of users, products are developing in a diversified manner. Due to the complexity of the process or the lack of corresponding molds, many products need to be welded to form a new whole. As we all know, after welding, a weld will be formed at the connection between objects. The high heat generated during the welding process will reduce the strength of the heat-affected zone on both sides of the weld joint. In order to ensure that the welded products can be safely shipped, manufacturers need to perform mechanical tests on the welds to accurately obtain the strength of the welds and the heat-affected zones on both sides of the welds to ensure the overall performance of the product. At present, the conventional test product weld tensile strength test structure has the following problems:

[0003] (I) The above test structure has high requirements on the shape and size of the tested product, but the product structure is complex and diverse, which makes some structures unable to be tested or the measured results are inaccurate, which is not conducive to manufacturers to study and find out the cause of the problem, and further affects the analysis and judgment of the overall structure.

[0004] (ii) The above test structure can only meet the needs of a single test product. If there are multiple test products with different structures, multiple sets of different test structures need to be designed, which increases the burden of enterprise testing and is not conducive to the long-term development of the enterprise. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present utility model is to provide a weld breaking force detection device to solve one or more problems in the prior art.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A weld breaking force detection device is respectively arranged at the first stretching end and the second stretching end of a tensile testing machine, and the device comprises at least two sliders and a main body; the two ends of the slider are bent to form a first protrusion, and the two sides of the main body are bent to form a second protrusion; the first protrusion and the second protrusion cooperate with each other to realize the movement of the slider relative to the main body.

[0008] Furthermore, the main body is provided with a third protruding portion, the third protruding portion defines a first hole, and the second protruding portions are symmetrically arranged with the central axis of the third protruding portion as the center.

[0009] Furthermore, the sliding block is provided with a second hole, a first groove and a third hole respectively.

[0010] Furthermore, the second hole is arranged in the length direction of the slider; the first groove is arranged in the length direction of the slider and is opened along the side of the slider; and the third hole is arranged on the surface of the first protrusion close to the main body.

[0011] Furthermore, the first protrusions are symmetrically arranged with the central axis of the third protrusion as the center; and at least two of the sliding blocks are arranged on the main body for cooperation.

[0012] Furthermore, the third hole has an internal thread, and the internal thread is used to connect with a fastener.

[0013] Furthermore, the device also includes a ruler, and the ruler is arranged on at least one side surface of the main body along the width direction.

[0014] Furthermore, the first groove is arc-shaped.

[0015] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0016] (I) The utility model provides a main body and a slider movable relative to the main body, and by arranging each main body at the first stretching end and the second stretching end of the tensile testing machine, and by adjusting the relative spacing between the sliders, it can meet the tensile strength detection of different structures, thereby solving the problem that the tensile strength data of the weld of the traditional test product cannot be accurately detected.

[0017] (ii) The utility model can achieve clamping and fixing of the product by arranging the second hole and the first groove on the slider. The product can be fixed by moving the slider to adjust the positions of the second hole and the first groove according to different product structures. The utility model is flexible, convenient and has wide applicability.

[0018] (III) The utility model has a ruler on one side of the main body. After the product is calibrated and fixed according to the moving slider, the relevant dimensions of the product can be obtained by comparing the distance between the two sliders with the ruler, which helps the subsequent optimization of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of a weld breaking force detection device according to an embodiment of the utility model is shown.

[0020] Figure 2 A structural schematic diagram of a slider in a weld breaking force detection device according to an embodiment of the utility model is shown.

[0021] Figure 3 A schematic structural diagram of a main body in a weld breaking force detection device according to an embodiment of the utility model is shown.

[0022] Figure 4 A schematic structural diagram of a test water nozzle in a weld breaking force detection device according to a first embodiment of the utility model is shown.

[0023] Figure 5 A schematic structural diagram of a cross-type test in a weld breaking force detection device according to a second embodiment of the utility model is shown.

[0024] Markings in the attached drawings: 1. slider; 2. ruler; 3. locking bolt; 4. main body; 5. first protrusion; 6. second protrusion; 7. third protrusion; 8. first hole; 9. second hole; 10. first groove; 11. third hole; 12. internal thread; 13. battery tray faucet; 14. cross piece. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the device proposed in the utility model is further described in detail below in combination with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and all use non-precise proportions. The directions or positional relationships indicated by the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side", etc. are based on the directions or positional relationships shown in the accompanying drawings, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model, but only to facilitate and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings.

[0026] Embodiment 1:

[0027] The specific structure of a weld breaking force detection device is described below:

[0028] See also Figures 1 to 3 The utility model is a weld breaking force detection device comprising at least two sliders 1, a scale 2, a locking bolt 3 and a main body 4. The two ends of the slider 1 are bent to form a first protrusion 5, that is, the first protrusion 5 protrudes inward from the side of the slider 1 along the length direction. The two sides of the main body 4 are bent to form a second protrusion 6, that is, the second protrusion 6 protrudes along the lower edges of the two sides of the main body 4. The slider 1 is matched with the first protrusion 5 and the second protrusion 6 of the main body 4, and the slider 1 can move relative to the main body 4. Preferably, in the structure for testing the breaking force of the weld of a product described in the embodiment of the utility model, two sliders 1 are provided to cooperate with the main body 4.

[0029] For further information, please refer to Figure 1 and Figure 3The main body 4 is provided with a third protrusion 7. Specifically, the third protrusion 7 is provided on the outer upper surface of the main body 4. The third protrusion 7 is used to cooperate with an external tensile machine. A first hole 8 is provided on the third protrusion 7. After the third protrusion 7 is calibrated with the external tensile machine, a latch is provided in the first hole 8 to lock and fix the main body 4. The slider 1 and the main body 4 are both symmetrical about the central axis of the protruding direction of the third protrusion 7 and cooperate with each other.

[0030] For further information, please refer to Figure 1 and Figure 2 , the slider 1 is provided with a second hole 9, a first groove 10 and a third hole 11 respectively. The second hole 9 is provided along the length direction of the slider 1. The first groove 10 is close to the second hole 9 and is provided along the side of the slider 1. Preferably, in this embodiment, the first groove 10 is provided as an arc-shaped semicircular groove, and the first grooves 10 of the two sliders 1 can be close to each other through adjacent sliders 1 to form a circular hole, so as to be connected with the battery tray faucet 13 through the circular hole. The third hole 11 is provided on the third protrusion 7.

[0031] For further information, please refer to Figure 1 and Figure 2 The third hole 11 is provided with an internal thread 12, and the internal thread 12 is matched with the fastener, that is, the locking bolt 3, through a threaded connection. Preferably, in the present utility model, the scale 2 is provided on an outer side surface of the main body 4.

[0032] The specific working process of a weld breaking force detection device according to an embodiment of the utility model is described as follows:

[0033] When the product to be tested is a battery tray faucet 13, please refer to Figure 4 In this embodiment, two main bodies 4 are required to be aligned in the same plane and placed in an upper and lower position. Preferably, two sliders 1 are used to connect with the main body 4 through the first protrusion 5 and the second protrusion 6. The third protrusion 7 of one of the main bodies 4 is calibrated with the first tensile end of the external tensile machine. After adjustment, the pin is passed through the first hole 8 to lock and fix. Similarly, the other main body 4 is also connected to the second tensile end of the external tensile machine using the above method.

[0034] Furthermore, after the third protrusions 7 at both ends are fixed, the upper and lower space distances between two adjacent main bodies 4 are adjusted by a tensile machine. In the first embodiment of the present invention, the battery tray water spout 13 is composed of an upper cylinder and a lower plate. The upper part of the battery tray water spout 13 is extended into the first groove 10 of the upper structure. The upper end of the battery tray water spout 13 is clamped by adjusting the slider 1, and then the locking bolt 3 is locked. The slider 1 is fixed to the main body 4 under the action of the locking bolt 3. The locking bolt 3 is locked to prevent the slider 1 from loosening and causing the battery tray water spout 13 to fail to be locked. The lower end of the battery tray water spout 13 is passed through the slider 1 of the lower structure, so that the upper surface of the lower part of the battery tray water spout 13 contacts the lower surface of the slider 1 of the lower structure. At this time, the slider 1 of the lower structure clamps the other end of the upper part of the battery tray water spout 13. Similarly, the locking bolt 3 of the lower structure is locked to fix the slider 1.

[0035] Furthermore, by setting the corresponding tensile force value on the tensile testing machine, the battery tray water nozzle 13 is stretched and separated as the upper and lower test product welds break under the action of the tensile testing machine. The tester can directly read and obtain the maximum breaking force that the battery tray water nozzle 13 can withstand through the data and curve graph formed after the test, and optimize and improve the battery tray water nozzle 13.

[0036] Embodiment 2:

[0037] The structure of the second embodiment is the same as that of the first embodiment, except that the product to be tested is a cross member 14, see Figure 5 In this embodiment, two main bodies 4 are placed in the same plane in upper and lower positions, and in particular, one of the main bodies 4 is placed 90° rotated along the center relative to the other main body 4. Preferably, in this embodiment, the cross member 14 is composed of two identical slats at the upper and lower parts, each slat is provided with an opening at both ends, and the two slats are arranged at 90° like the above two structures. After the two structures are adjusted to a certain distance by a tensile machine, the upper two holes of the cross member 14 are aligned and passed through the second hole 9 of a slider 1 in the upper structure. Similarly, the lower two holes of the cross member 14 are aligned and passed through the second hole 9 of another slider 1 in the lower structure, and the cross member 14 is fixed and locked with bolts to the second hole 9, and then the slider 1 is fixed with the locking bolt 3. The cross member 14 is stretched by a tensile machine to measure the tensile strength value.

[0038] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A weld breaking force detection device, characterized in that: The device is respectively arranged at the first stretching end and the second stretching end of the tensile machine, and comprises at least two sliders (1) and a main body (4); the two ends of the slider (1) are bent to form a first protrusion (5), and the two sides of the main body (4) are bent to form a second protrusion (6); the first protrusion (5) and the second protrusion (6) cooperate with each other to realize the movement of the slider (1) relative to the main body (4).

2. A weld breaking force detection device according to claim 1, characterized in that: The main body (4) is provided with a third protruding portion (7), the third protruding portion (7) is provided with a first hole (8), and the second protruding portions (6) are symmetrically arranged with the central axis of the third protruding portion (7) as the center.

3. A weld breaking force detection device as claimed in claim 2, characterized in that: The slider (1) is respectively provided with a second hole (9), a first groove (10) and a third hole (11).

4. A weld breaking force detection device as claimed in claim 3, characterized in that: The second hole (9) is arranged in the length direction of the slider (1); the first groove (10) is arranged in the length direction of the slider (1) and is opened along the side of the slider (1); and the third hole (11) is arranged on the surface of the first protrusion (5) close to the main body (4).

5. A weld breaking force detection device as claimed in claim 4, characterized in that: The first protrusions (5) are symmetrically arranged with the central axis of the third protrusion (7) as the center; and at least two of the sliding blocks (1) are arranged on the main body (4) for cooperation.

6. A weld breaking force detection device as claimed in claim 5, characterized in that: The third hole (11) has an internal thread (12), and the internal thread (12) is used for connecting with a fastener.

7. A weld breaking force detection device as claimed in claim 1, characterized in that: The device further comprises a ruler (2), wherein the ruler (2) is arranged on at least one side surface of the main body (4) along the width direction.

8. A weld breaking force detection device as claimed in claim 3, characterized in that: The first groove (10) is arc-shaped.

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