Welding test tool

Abstract

The utility model relates to the field of welding test equipment, in particular to a welding test tool. The welding test tool comprises a fixed platform, a first welding platform and a second welding platform, wherein the fixed platform is used for being connected with a welding machine; the first welding platform is connected with the fixed platform; the second welding platform is connected with the first welding platform and the fixed platform, the second welding platform is parallel to the fixed platform, the first welding platform and the second welding platform are arranged at an included angle, and the first welding platform and the second welding platform are both used for placing samples. According to the welding test tool, before a battery module is welded, a sample with the same structure as a battery cell is placed on the first welding platform or the second welding platform to be welded to verify whether the battery cell is qualified or not, so that it is guaranteed that the battery cell module can be used on site after being assembled, the cost is saved, and the production efficiency is improved. And the verification efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the field of welding test equipment, in particular to a welding test tool. Background Art

[0002] The power battery pack is the energy core of electric vehicles, used for energy supply and storage. The general battery module is a series-parallel connection structure formed by welding batteries. At present, during the production and welding process of the battery module, there will be individual cells that cannot meet the requirements of on-site use after assembly due to material or other reasons. Therefore, the battery cells need to be verified before assembly and use.

[0003] However, in the prior art, direct welding of the battery module is generally adopted to verify the battery cell. This verification method has the problems of uncontrollable risks, low safety and efficiency, and high cost. Utility Model Content

[0004] The purpose of the utility model is to provide a welding test tool, which can ensure that the battery module can meet the requirements of on-site use after assembly, thereby saving costs and improving the efficiency and safety of verification.

[0005] The embodiment of the utility model is achieved as follows:

[0006] The utility model provides a welding test tool, comprising:

[0007] A fixed platform, the fixed platform is used to connect with the welding machine;

[0008] A first welding platform, the first welding platform is connected to the fixed platform;

[0009] A second welding platform, the second welding platform is connected to the first welding platform and the fixed platform, and the second welding platform is parallel to the fixed platform;

[0010] The first welding platform and the second welding platform are arranged at an angle, and both the first welding platform and the second welding platform are used to place the sample.

[0011] In an optional embodiment, the first welding platform is provided with a plurality of first containing grooves, and the second welding platform is provided with a plurality of second containing grooves;

[0012] The plurality of first containing grooves and the plurality of second containing grooves are arranged in an array, and the first containing grooves and the second containing grooves are used to contain samples.

[0013] In an optional embodiment, the welding test fixture further includes a fixing member, which is detachably connected to the first welding platform and is used to press the sample located in the first receiving groove.

[0014] In an optional embodiment, the fixing member is provided with a plurality of hollow portions, each of which is directly opposite to a first accommodating groove, and a projection of the hollow portion in a direction perpendicular to the first welding platform is located within the contour of the first accommodating groove.

[0015] In an optional embodiment, the first welding platform is further provided with a plurality of third accommodating grooves, each first accommodating groove is connected to one or more third accommodating grooves, and the width of the first accommodating groove is greater than the width of the third accommodating groove.

[0016] In an optional embodiment, each first accommodation groove is communicated with two third accommodation grooves, and the two third accommodation grooves are respectively located on two opposite sides of the first accommodation groove.

[0017] In an optional embodiment, the welding test fixture further includes at least one partition, which is located in the second receiving groove and is detachably connected to the second receiving groove.

[0018] In an optional embodiment, the second welding platform is further provided with at least one avoidance groove, the avoidance groove is located at the edge of the second accommodating groove, and the avoidance groove is communicated with the second accommodating groove.

[0019] In an optional embodiment, the welding test fixture further includes a support column, and two ends of the support column are respectively connected to the second welding platform and the fixed platform;

[0020] The opposite sides of the first welding platform are respectively connected to the second welding platform and the fixing platform.

[0021] In an optional embodiment, the fixed platform is provided with a plurality of positioning holes, and the positioning holes are used to cooperate with positioning pins on the welding machine.

[0022] The beneficial effects of the embodiments of the utility model include:

[0023] The welding test tooling includes a fixed platform, a first welding platform and a second welding platform, wherein the fixed platform is used to be connected to a welding machine; the first welding platform is connected to the fixed platform; the second welding platform is connected to the first welding platform and the fixed platform, and the second welding platform is parallel to the fixed platform, wherein the first welding platform and the second welding platform are arranged at an angle, and both the first welding platform and the second welding platform are used to place samples.

[0024] The welding test tool can place the sample with the same structure as the battery cell on the first welding platform or the second welding platform for welding before welding the battery module to verify whether the battery cell is qualified, thereby ensuring that the battery cell module can meet the requirements of on-site use after assembly. In addition, by setting the first welding platform and the second welding platform, the welding test tool can cooperate with different types of welding machines for welding, so that the welding test tool can be applied to different scenarios to test different battery cells, thereby saving costs and improving the efficiency and safety of verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, 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 utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of the welding test tool provided by an embodiment of the utility model from a first viewing angle;

[0027] Figure 2 A schematic diagram of the structure of the welding test tool provided by an embodiment of the utility model from a second viewing angle;

[0028] Figure 3 A schematic diagram of the structure of the welding test tool provided by an embodiment of the utility model from a third viewing angle;

[0029] Figure 4 This is a schematic structural diagram of a first welding platform provided in an embodiment of the utility model.

[0030] Icons: 100-welding test tooling; 110-fixed platform; 120-first welding platform; 111-first receiving groove; 112-third receiving groove; 130-second welding platform; 131-second receiving groove; 132-partition; 133-avoidance groove; 140-fixing piece; 141-hollow part; 150-support column; 160-positioning hole. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] During the production and welding of battery modules, some cells may not meet the requirements of on-site use due to material or other reasons. Therefore, it is necessary to verify the battery before assembling the battery module. However, in the prior art, direct welding of the battery module is generally adopted to verify the cell. This verification method has the problems of uncontrollable risks, low safety and efficiency, and high cost.

[0038] Based on this, the present invention provides a welding test tool 100 to solve the above problems. Figure 1-Figure 4 , Figure 1 A schematic structural diagram of a welding test tool 100 provided in an embodiment of the utility model from a first viewing angle; Figure 2 A schematic diagram of the structure of the welding test tool 100 provided by an embodiment of the utility model at a second viewing angle; Figure 3 A schematic structural diagram of the welding test tool 100 provided by an embodiment of the utility model under a third viewing angle; Figure 4 This is a schematic structural diagram of the first welding platform 120 provided in an embodiment of the present utility model.

[0039] The welding test tool 100 includes a fixed platform 110, a first welding platform 120 and a second welding platform 130, wherein the fixed platform 110 is used to be connected to a welding machine; the first welding platform 120 is connected to the fixed platform 110; the second welding platform 130 is connected to the first welding platform 120 and the fixed platform 110, and the second welding platform 130 is parallel to the fixed platform 110, wherein the first welding platform 120 and the second welding platform 130 are arranged at an angle, and the first welding platform 120 and the second welding platform 130 are both used to place samples.

[0040] Specifically, in this embodiment, the first welding platform 120 and the second welding platform 130 are perpendicular to each other. Since the second welding platform 130 and the fixed platform 110 are parallel, the first welding platform 120 and the fixed platform 110 are also perpendicular to each other. Therefore, by utilizing the mutually perpendicular first welding platform 120 and the second welding platform 130, the welding test tool 100 can be suitable for different welding machines.

[0041] It should be noted that laser welding is generally used in welding tests, that is, the welding test fixture 100 can be used for welding the sample with lasers emitted from different directions. It should be further noted that the welding test fixture 100 is used to test the welding of battery cells to verify whether the battery cells are qualified, and since the main purpose of welding is to weld the battery cells and busbars together, the sample includes busbars and plates, wherein the material and structure of the plate body are similar to the material and structure of the welding part in the battery cell, and during the welding process, the plate body needs to be placed on the first welding platform 120 or the second welding platform 130 first, and then the busbars are placed on the plate body for welding, so as to improve the accuracy of the verification results.

[0042] In other embodiments, the two opposite sides of the first welding platform 120 can be respectively connected to the second welding platform 130 and the fixed plate, so that the first welding platform 120 can support the second welding platform 130; or, the two adjacent sides of the first welding platform 120 can be respectively connected to the second welding platform 130 and the fixed plate, so as to reduce space utilization.

[0043] The working principle of the welding test fixture 100 is as follows:

[0044] In order to verify whether the battery cell is qualified, before assembling the battery module, the battery cell needs to be welded and tested to determine whether it is qualified based on the depth of welding. In this embodiment, a sample with the same material and structure as the battery cell is placed on the first welding platform 120 or the second welding platform 130 and the sample is welded to verify whether the battery cell is qualified to ensure that the battery module can meet the requirements of on-site use after assembly. In addition, since the present embodiment is provided with a first welding platform 120 and a second welding platform 130 that are perpendicular to each other, the welding test fixture 100 can cooperate with different types of welding machines and perform welding, so that the welding test fixture 100 can be applied to different scenarios to test different battery cells, thereby saving costs and improving the efficiency and safety of verification.

[0045] Furthermore, the first welding platform 120 is provided with a plurality of first receiving grooves 111, and the second welding platform 130 is provided with a plurality of second receiving grooves 131, wherein the plurality of first receiving grooves 111 and the plurality of second receiving grooves 131 are arranged in an array, and the first receiving grooves 111 and the second receiving grooves 131 are used to accommodate the sample. It should be noted that before welding, the sample needs to be placed in the first receiving groove 111 or the second receiving groove 131. Since the plurality of first receiving grooves 111 and the second receiving groove 131 are provided, it is possible to weld a plurality of samples simultaneously, thereby comparing the plurality of samples after welding, and improving the accuracy of the welding test.

[0046] Based on the above settings, please refer to Figure 1-Figure 3 In this embodiment, since the fixing platform 110 is placed horizontally, the first welding platform 120 is vertically connected to the fixing platform 110, so that the sample contained in the first receiving groove 111 will be separated from the first receiving groove 111 under the action of gravity. Therefore, in this embodiment, the welding test fixture 100 also includes a fixing member 140, which is detachably connected to the first welding platform 120 and is used to press the sample located in the first receiving groove 111 to prevent the sample contained in the first receiving groove 111 from being separated.

[0047] In combination with the above, in this embodiment, the fixing member 140 is provided with a plurality of hollow portions 141 , each hollow portion 141 is directly opposite to a first accommodating groove 111 , and the projection of the hollow portion 141 in a direction perpendicular to the first welding platform 120 is located within the contour of the first accommodating groove 111 .

[0048] Specifically, in this embodiment, only one fixing member 140 is provided to fix the samples in all the first containing grooves 111, so that the hollow portion 141 is provided to avoid the laser emitted by the welding machine, and the fixing member 140 presses the edge of the sample to prevent the sample from detaching, so that the laser can be successfully shot on the sample for welding. In other embodiments, multiple fixing members 140 can be provided, and one fixing member 140 can be used to press the samples in one or more first containing grooves 111.

[0049] For further information, please refer to Figure 4 The first welding platform 120 is further provided with a plurality of third accommodating grooves 112, each of the first accommodating grooves 111 is connected to one or more third accommodating grooves 112, and the width of the first accommodating groove 111 is greater than the width of the third accommodating groove 112. Specifically, since the sample includes a plate body and a bus bar, in order to better control the welding effect, the plate body is accommodated in the first accommodating groove 111, and the bus bar is accommodated in the third accommodating groove 112.

[0050] Furthermore, the side of the third receiving groove 112 opposite to the side connected to the first receiving groove 111 is connected to the outside, so that after the fixing member 140 presses the plate body, the busbar is inserted from the third receiving groove 112, so that the busbar is located above the plate body. It should be noted that, since the projection areas of the battery cell and the busbar in the same direction are different, the projection area of ​​the busbar is smaller than the projection area of ​​the battery cell, thereby improving the accuracy of the welding test.

[0051] According to the above arrangement, in order to facilitate the placement of the busbar and enable it to be pressed by the fixing member 140 to prevent it from detaching, each first accommodating groove 111 is connected to two third accommodating grooves 112, and the two third accommodating grooves 112 are respectively located on opposite sides of the first accommodating groove 111. Specifically, the length of the busbar is greater than the length of the hollow portion 141, so that the fixing member 140 can press and hold both ends of the busbar, and therefore, the third accommodating grooves 112 are provided on opposite sides of the first accommodating groove 111 to place the busbar.

[0052] For further information, please refer to Figure 1-Figure 3 The welding test fixture 100 also includes at least one partition 132, which is located in the second receiving groove 131 and is detachably connected to the second receiving groove 131. In this embodiment, a plurality of partitions 132 are provided in each second receiving groove 131, and the plurality of partitions 132 are arranged in parallel and spaced apart along the length direction of the second receiving groove 131, so that more samples can be accommodated for welding testing, and adjacent samples are prevented from being welded together due to being too close. In other embodiments, partitions 132 may be provided only in part of the second receiving grooves 131 according to actual conditions. It should be noted that the distance between the partitions 132 may be adjusted according to the size of the sample.

[0053] According to the above configuration, the second welding platform 130 is further provided with at least one avoidance groove 133, which is located at the edge of the second receiving groove 131 and is connected to the second receiving groove 131, so as to facilitate taking out the sample located in the second receiving groove 131. Figure 2 In this embodiment, a avoidance groove 133 is disposed at each of the four corners of the second accommodating groove 131 , and a avoidance groove 133 is also disposed at both ends of each partition 132 .

[0054] Furthermore, the welding test fixture 100 also includes a support column 150, and the two ends of the support column 150 are respectively connected to the second welding platform 130 and the fixed platform 110; the opposite sides of the first welding platform 120 are respectively connected to the second welding platform 130 and the fixed platform 110. Specifically, the height of the support column 150 is equal to the length of the first welding platform 120, so that the first welding platform 120 and the support column 150 together lift and support the second welding platform 130, and then when welding the sample located on the second welding platform 130, the laser of the welding machine corresponding to the second welding platform 130 will not be shot on the first welding platform 120, resulting in damage to the first welding platform 120, and the laser is reflected, affecting the effect of the welding test.

[0055] In combination with the above, the fixed platform 110 is provided with a plurality of positioning holes 160, and the positioning holes 160 are used to cooperate with the positioning pins on the welding machine. In this embodiment, the fixed platform 110 is also provided with fixing holes arranged circumferentially around the positioning holes 160, which are used to cooperate with the welding machine to make the installation of the welding test fixture 100 more stable.

[0056] In summary, the welding test fixture 100 includes a fixed platform 110, a first welding platform 120 and a second welding platform 130, wherein the fixed platform 110 is used to connect to a welding machine; the first welding platform 120 is connected to the fixed platform 110; the second welding platform 130 is connected to the first welding platform 120 and the fixed platform 110, and the second welding platform 130 is parallel to the fixed platform 110, wherein the first welding platform 120 and the second welding platform 130 are arranged at an angle, and the first welding platform 120 and the second welding platform 130 are both used to place samples. The welding test fixture 100 can place a sample with the same structure as the battery cell on the first welding platform 120 or the second welding platform 130 for welding before welding the battery module to verify whether the battery cell is qualified, thereby ensuring that the battery cell module can meet the requirements of on-site use after assembly. Furthermore, by setting a first welding platform 120 and a second welding platform 130 that are perpendicular to each other, the welding test jig 100 can cooperate with different types of welding machines to perform welding, so that the welding test jig 100 can be applied to different scenarios to test different battery cells, thereby saving costs and improving the efficiency and safety of verification.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding test tool, characterized in that: include: A fixed platform (110), wherein the fixed platform (110) is used to be connected to a welding machine; A first welding platform (120), the first welding platform (120) being connected to the fixed platform (110); A second welding platform (130), the second welding platform (130) being connected to the first welding platform (120) and the fixed platform (110), and the second welding platform (130) being parallel to the fixed platform (110); The first welding platform (120) and the second welding platform (130) are arranged at an angle, and the first welding platform (120) and the second welding platform (130) are both used to place samples.

2. The welding test tool according to claim 1, characterized in that: The first welding platform (120) is provided with a plurality of first containing grooves (111), and the second welding platform (130) is provided with a plurality of second containing grooves (131); Wherein, the plurality of first containing grooves (111) and the plurality of second containing grooves (131) are arranged in an array, and the first containing grooves (111) and the second containing grooves (131) are used to contain the sample.

3. The welding test tool according to claim 2, characterized in that: The welding test fixture (100) further comprises a fixing member (140), wherein the fixing member (140) is detachably connected to the first welding platform (120), and the fixing member (140) is used to press the sample located in the first receiving groove (111).

4. The welding test tool according to claim 3, characterized in that: The fixing member (140) is provided with a plurality of hollow portions (141), each of the hollow portions (141) is directly opposite to one of the first accommodating grooves (111), and a projection of the hollow portion (141) in a direction perpendicular to the first welding platform (120) is located within the contour of the first accommodating groove (111).

5. The welding test tool according to claim 2, characterized in that: The first welding platform (120) is also provided with a plurality of third accommodating grooves (112), each of the first accommodating grooves (111) is connected to one or more of the third accommodating grooves (112), and the width of the first accommodating groove (111) is greater than the width of the third accommodating groove (112).

6. The welding test tool according to claim 5, characterized in that: Each of the first accommodating grooves (111) is in communication with two of the third accommodating grooves (112), and the two third accommodating grooves (112) are respectively located on two opposite sides of the first accommodating groove (111).

7. The welding test tool according to claim 2, characterized in that: The welding test fixture (100) further comprises at least one partition plate (132), wherein the partition plate (132) is located in the second containing groove (131), and the partition plate (132) is detachably connected to the second containing groove (131).

8. The welding test tool according to claim 2, characterized in that: The second welding platform (130) is further provided with at least one avoidance groove (133), the avoidance groove (133) being located at the edge of the second accommodating groove (131), and the avoidance groove (133) being communicated with the second accommodating groove (131).

9. The welding test tool according to claim 1, characterized in that: The welding test tool (100) further comprises a support column (150), and two ends of the support column (150) are respectively connected to the second welding platform (130) and the fixed platform (110); Two opposite sides of the first welding platform (120) are respectively connected to the second welding platform (130) and the fixing platform (110).

10. The welding test tool according to claim 1, characterized in that: The fixing platform (110) is provided with a plurality of positioning holes (160), and the positioning holes (160) are used to cooperate with positioning pins on the welding machine.

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