Weld alignment fixture and welding apparatus

Abstract

This utility model discloses a welding alignment fixture and a welding device. The welding alignment fixture is used for pre-welding positioning of a first and a second mating part arranged opposite each other along a first horizontal direction. It includes a base plate and a pressure plate. The upper surface of the base plate has a placement area. The pressure plate has a first position and a second position. In the first position, a clamping space for holding the first and second mating parts is defined between the pressure plate and the placement area. In the second position, the pressure plate is positioned away from the placement area. The pressure plate also has a hollow area opposite to the placement area to expose the mating position of the first and second mating parts. A positioning structure is provided between the base plate and the pressure plate. The positioning structure abuts against the same end of the first and second mating parts in a second horizontal direction, which is perpendicular to the first horizontal direction. This facilitates improved welding quality of the first and second mating parts.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belt processing equipment, and in particular to a welding alignment fixture and welding device. Background Technology

[0002] Currently, conveyor belts on production lines are typically in rolls, requiring cutting to specified lengths according to demand, and then aligning and welding the ends together. However, in existing technologies, misalignment easily occurs at the ends of the conveyor belt during alignment, and misalignment is prone to occur during welding, resulting in low welding quality and hindering subsequent use. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a welding alignment fixture and welding device, so that the first and second mating parts are less likely to misalign during alignment, and the first and second mating parts are less likely to shift during welding, thereby improving the welding quality of the first and second mating parts.

[0004] According to a first aspect embodiment of the present invention, a welding alignment fixture is used for pre-welding positioning of a first and a second mating portion arranged opposite to each other along a first horizontal direction. The fixture includes a base plate and a pressure plate. A placement area is formed on the upper surface of the base plate. The pressure plate is movably disposed relative to the base plate and has a first position and a second position. In the first position, the pressure plate is disposed above the base plate and defines a clamping space between itself and the placement area for clamping the first and second mating portions. In the second position, the pressure plate is disposed away from the placement area. The pressure plate also has a hollow area opposite to the placement area and adapted to communicate with the clamping space to expose the mating position of the first and second mating portions. A positioning structure is provided between the base plate and the pressure plate. The positioning structure is located at at least one end of the placement area in the second horizontal direction and is used to abut against the same end of the first and second mating portions in the second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction.

[0005] According to the welding alignment fixture of this utility model embodiment, the first mating part and the second mating part are arranged opposite to each other on the placement area along the first horizontal direction. The positioning structure abuts against the same end of the first mating part and the second mating part in the second horizontal direction, so that the aforementioned ends of the first mating part and the second mating part can be aligned without manual alignment operation. At the same time, the pressure plate and the placement area define a clamping space for clamping the first mating part and the second mating part, so that the first mating part and the second mating part are not prone to displacement during welding, which facilitates the improvement of the welding quality of the first mating part and the second mating part.

[0006] In some embodiments, the positioning structure extends continuously along a first horizontal direction and is located at the corresponding edge of the hollow area or spaced apart on the outer periphery of the hollow area; or, the positioning structure includes a first positioning portion and a second positioning portion spaced apart, the first positioning portion and the second positioning portion being spaced apart on opposite sides of the hollow area in the first horizontal direction, the first positioning portion being adapted to abut against the first docking portion, and the second positioning portion being adapted to abut against the second docking portion.

[0007] In some embodiments, the positioning structure is limited to one of the base plate and the pressure plate, and the other of the base plate and the pressure plate avoids the positioning structure; or, the other of the base plate and the pressure plate is detachably connected to the positioning structure; and / or, the positioning structure includes a first positioning portion and a second positioning portion, and the position of the positioning structure in the second horizontal direction is adjustable.

[0008] In some embodiments, the pressure plate and the base plate are provided with at least one detachably disposed first fastener, which is disposed independently of the positioning structure. In a first position, the first fastener is disposed in a direction inclined relative to the horizontal direction to fix the pressure plate and the base plate together, and the first fastener is spaced apart on the outside of the placement area in the second horizontal direction.

[0009] In some embodiments, the hollow area is used to accommodate a welding fixture for welding the first and second mating portions. The welding alignment fixture further includes a clamping structure, which is spaced above the pressure plate and adapted to be located on the upper side of the welding fixture to apply a downward force to the welding fixture.

[0010] In some embodiments, the welding alignment fixture further includes a connecting structure, which connects to the clamping structure and is disposed on the outer periphery of the hollow area. The connecting structure includes: a first connector, the clamping structure spanning across both ends of the hollow area in a first horizontal direction, the first connector being fixedly or elastically connected to the pressure plate and spaced apart from the base plate; and / or, the connecting structure includes: a second connector, the clamping structure spanning across both ends of the hollow area in a second horizontal direction, the second connector being fixedly or elastically connected to the pressure plate and / or the base plate.

[0011] In some embodiments, the pressing structure includes: at least one first pressing member, the first pressing member extending in a first horizontal direction as an elongated strip and extending beyond the hollow area, and the two ends of the length of the first pressing member being respectively connected to a first connecting member; and / or, the pressing structure includes: at least one second pressing member, the second pressing member extending in a second horizontal direction as an elongated strip and extending beyond the hollow area, and the two ends of the length of the second pressing member being respectively connected to a second connecting member.

[0012] In some embodiments, there are multiple first pressing members spaced apart along a second horizontal direction; and / or, there are multiple second pressing members spaced apart along a first horizontal direction.

[0013] In some embodiments, one of the base plate and the pressure plate is formed with a receiving groove and the other is formed with a protrusion. The receiving groove is closed at at least one end in the second horizontal direction, and the groove sidewall of the receiving groove at at least one end in the second horizontal direction is configured as a positioning structure. In a first position, the protrusion engages with the receiving groove so that at least a portion of the clamping space is located between the protrusion and the receiving groove.

[0014] In some embodiments, the placement area is formed with a downwardly recessed receiving groove, both ends of which are closed in the first horizontal direction; or, both ends of the receiving groove are open in the first horizontal direction.

[0015] In some embodiments, the pressure plate and the base plate are provided with a second fastener and a third fastener, which detachably connect the pressure plate and the base plate, and are respectively provided on opposite sides of the hollow area in the first horizontal direction. The second fastener and the third fastener are configured as a positioning structure, the second fastener is adapted to abut against the first mating portion, and the third fastener is adapted to abut against the second mating portion.

[0016] In some embodiments, there are two second fasteners and two third fasteners, which are configured as two positioning structures spaced apart along a second horizontal direction, and the distance between the two positioning structures in the second horizontal direction is adjustable.

[0017] In some embodiments, the base plate has a first connecting portion with two positioning structures, and the pressure plate has a second connecting portion with two positioning structures. Both the first connecting portion and the second connecting portion are formed as strip holes extending along a second horizontal direction; or, one of the first connecting portion and the second connecting portion is formed as a strip hole extending along a second horizontal direction, and the other is formed as a plurality of limiting mounting holes spaced apart along the second horizontal direction, with three or more limiting mounting holes, and at least one of the positioning structures can be selectively provided in any limiting mounting hole.

[0018] The welding apparatus according to a second aspect of the present invention includes: a welding fixture and a welding alignment fixture according to a first aspect of the present invention. The welding fixture is adapted to be disposed in a hollow area to weld a first mating portion and a second mating portion. The shape of the outer peripheral wall of the welding fixture is adapted to the shape of the hollow area so that the welding fixture is adapted to be positioned and fitted in the hollow area.

[0019] According to the welding apparatus of the present invention, by adopting the above-mentioned welding alignment fixture, the first mating part and the second mating part have a good alignment and positioning effect. At the same time, the first mating part and the second mating part are not prone to loosening or displacement during welding, so that the welding apparatus can have a good welding effect and improve the reliability of the welding apparatus.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is an assembly diagram of a welding alignment fixture, a first mating part, and a second mating part according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a welding alignment fixture according to another embodiment of the present invention; Figure 3 This is a schematic diagram of a welding apparatus according to an embodiment of the present invention; Figure 4 yes Figure 2 A cross-sectional view of the welding alignment fixture shown; Figure 5 yes Figure 2 A schematic diagram of the base plate shown; Figure 6 This is a schematic diagram of the base plate according to another embodiment of the present utility model; Figure 7 This is a schematic diagram of the base plate according to another embodiment of the present utility model; Figure 8 yes Figure 2 A schematic diagram of the pressure plate shown; Figure 9 This is a schematic diagram of a pressure plate according to another embodiment of the present invention; Figure 10 yes Figure 1 A schematic diagram of the welding alignment fixture shown; Figure 11 This is a schematic diagram of a welding apparatus according to another embodiment of the present invention; Figure 12 This is a schematic diagram of a welding apparatus according to another embodiment of the present invention; Figure 13 This is a schematic diagram of a welding alignment fixture according to another embodiment of the present invention; Figure 14 yes Figure 13 The diagram shows a welding fixture.

[0022] Figure label: Welding alignment fixture 100, welding device 200 Base plate 1, placement area 11, receiving groove 12, first connecting part 13, first plate body part 14 Pressure plate 2, clamping space 21, hollow area 22, protrusion 23, first protrusion 231, second connecting part 24, second plate body part 25. Positioning structure 3, first positioning part 31, second positioning part 32, second fastener 33, third fastener 34 4. First fastener; 5. Clamping structure; 51. First pressing member; 52. Second pressing member; 53. First clamping portion; 54. Second clamping portion; 6. Connecting structure; 61. First connecting member; 62. Second connecting member. 7. Welding fixture, 71. Heating component, 72. Gripper, 8. Conveyor belt, 81. First docking part, 82. Second docking part, 9. Magnet. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0025] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0026] Hereinafter, with reference to the accompanying drawings, a welding alignment fixture 100 according to a first aspect embodiment of the present invention will be described. The welding alignment fixture 100 is used for pre-welding positioning of a first mating portion 81 and a second mating portion 82 arranged opposite to each other along a first horizontal direction. For example, the welding alignment fixture 100 is used for pre-welding positioning of both ends of the same conveyor belt 8, the two ends of which are respectively configured as a first mating portion 81 and a second mating portion 82. As another example, the welding alignment fixture 100 is used for welding corresponding ends of two conveyor belts 8, one end of one conveyor belt 8 being configured as a first mating portion 81 and one end of the other conveyor belt 8 being configured as a second mating portion 82.

[0027] For example, the conveyor belt 8 mentioned above is a Teflon conveyor belt. The main material of the Teflon conveyor belt is a special cloth or film substrate coated with polytetrafluoroethylene resin. It is a material with extremely strong chemical stability, high temperature resistance, low temperature resistance, wear resistance and excellent insulation properties. It has good stability and functionality and is widely used.

[0028] Please refer to Figure 1 The welding alignment fixture 100 includes a base plate 1 and a pressure plate 2. A placement area 11 is formed on the upper surface of the base plate 1. The pressure plate 2 is movably disposed relative to the base plate 1 and has a first position and a second position. In the first position, the pressure plate 2 is positioned above the base plate 1, and a clamping space 21 for clamping the first mating portion 81 and the second mating portion 82 is defined between the pressure plate 2 and the placement area 11. In the second position, the pressure plate 2 is disposed away from the placement area 11. The pressure plate 2 also has a hollowed-out area 22 opposite to the placement area 11 and adapted to communicate with the clamping space 21, for exposing the mating positions of the first mating portion 81 and the second mating portion 82.

[0029] As can be seen, the pressure plate 2 can be movably arranged relative to the base plate 1. For example, the pressure plate 2 and the base plate 1 can be detachably connected, or the pressure plate 2 and the base plate 1 can slide together, or the pressure plate 2 and the base plate 1 can be rotatably connected, so that the pressure plate 2 has a first position and a second position. In the first position, a clamping space 21 is defined between the pressure plate 2 and the placement area 11 of the base plate 1 to clamp the first mating part 81 and the second mating part 82, so that the first mating part 81 and the second mating part 82 are less likely to shift during welding, which facilitates the improvement of the welding quality of the first mating part 81 and the second mating part 82. In the second position, the pressure plate 2 is arranged to avoid the placement area 11, so that the pressure plate 2 does not easily interfere with the placement of the first mating part 81 and the second mating part 82 in the placement area 11, thereby reducing the operational difficulty of the welding alignment fixture 100.

[0030] It is understood that in the second position, the pressure plate 2 can be spaced apart from the placement area 11 in the vertical direction, and / or the pressure plate 2 can be spaced apart from the placement area 11 in the horizontal direction (e.g., the first horizontal direction and / or the second horizontal direction) so that the pressure plate 2 can avoid the placement area 11. This application does not limit this, as long as the pressure plate 2 does not affect the placement of the first docking part 81 and the second docking part 82 in the placement area 11.

[0031] In addition, the pressure plate 2 also has a hollow area 22 that is opposite to the placement area 11 and is suitable for communicating with the clamping space 21, so as to expose the docking position of the first docking part 81 and the second docking part 82, so that other subsequent tooling (such as the welding tooling 7 described later) can be placed in the hollow area 22 to weld the docking position of the first docking part 81 and the second docking part 82. The pressure plate 2 is less likely to affect the welding of the first docking part 81 and the second docking part 82, which makes it easier to reduce the difficulty of using the welding alignment tooling 100. When the pressure plate 2 is in the first position, the hollow area 22 is vertically opposite to the placement area 11 and the hollow area 22 is connected to the clamping space 21, so the hollow area 22 can penetrate the pressure plate 2 in the vertical direction.

[0032] For example, the first mating portion 81 and the second mating portion 82 are welded using an overlapping method, that is, the first mating portion 81 and the second mating portion 82 are partially overlapped, and solder (e.g., F46 adhesive film) is placed between the overlapping portions of the first mating portion 81 and the second mating portion 82. The overlapping portions of the first mating portion 81 and the second mating portion 82 are exposed through the cutout area 22 so that subsequent tooling can heat the overlapping portions of the first mating portion 81 and the second mating portion 82 so that the overlapping portions of the first mating portion 81 and the second mating portion 82 can be thermally bonded.

[0033] Please refer to the following: Figure 1 , Figure 4 A positioning structure 3 is provided between the base plate 1 and the pressure plate 2. The positioning structure 3 is located at at least one end of the placement area 11 in the second horizontal direction, and the positioning structure 3 is used to abut against the same end of the first docking part 81 and the second docking part 82 in the second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction.

[0034] As can be seen, the positioning structure 3 is used to stop the first docking part 81 and the second docking part 82 at the same end in the second horizontal direction, so that the aforementioned ends of the first docking part 81 and the second docking part 82 can be aligned. The first docking part 81 and the second docking part 82 are less likely to misalign in the second horizontal direction, which is beneficial to improving the welding quality of the first docking part 81 and the second docking part 82.

[0035] It is understood that the positioning structure 3 can be located at one end of the two ends of the placement area 11 in the second horizontal direction, so that the positioning structure 3 abuts against the same end of the first docking part 81 and the second docking part 82 in the second horizontal direction, or the placement area 11 is provided with positioning structures 3 at both ends in the second horizontal direction, so that the first docking part 81 and the second docking part 82 abut against the positioning structure 3 at both ends in the second horizontal direction.

[0036] For example, the welding alignment fixture 100 is used to position the two ends of the same conveyor belt 8 before welding. The two ends of the conveyor belt 8 are respectively configured as a first mating part 81 and a second mating part 82. The first mating part 81 and the second mating part 82 are arranged opposite to each other on the placement area 11 along a first horizontal direction. The positioning structure 3 abuts against the same end of the first mating part 81 and the second mating part 82 in a second horizontal direction, so that the two ends of the conveyor belt 8 can be aligned. At the same time, the pressure plate 2 and the placement area 11 define a clamping space 21 for clamping the first mating part 81 and the second mating part 82, so that the first mating part 81 and the second mating part 82 are not prone to displacement during welding. Even if the conveyor belt 8 is too long or has its own weight, and there is tension on both sides, the two ends of the conveyor belt 8 are not prone to loosening or displacement during welding, which helps to improve the welding quality of the two ends of the conveyor belt 8. For example, the first horizontal direction is the length direction of the conveyor belt 8, and the second horizontal direction is the width direction of the conveyor belt 8.

[0037] Of course, in other embodiments of this application, the welding alignment fixture 100 can also be used to position the two conveyor belts 8 before welding. The process of "the welding alignment fixture 100 is used to position the two conveyor belts 8 before welding" is roughly the same as the process of "the welding alignment fixture 100 is used to position the two ends of the same conveyor belt 8 before welding" described above, and will not be repeated here.

[0038] In related technologies, the alignment and positioning of the first and second mating parts rely on manual operation, which is inconvenient. At the same time, the first and second mating parts are prone to misalignment during welding, and operator error may result in poor welding quality.

[0039] According to the welding alignment fixture 100 of the first aspect of the present invention, the first mating part 81 and the second mating part 82 are arranged opposite to each other on the placement area 11 along the first horizontal direction. The positioning structure 3 abuts against the same end of the first mating part 81 and the second mating part 82 in the second horizontal direction, so that the aforementioned ends of the first mating part 81 and the second mating part 82 can be aligned without manual alignment operation. At the same time, the pressure plate 2 and the placement area 11 define a clamping space 21 for clamping the first mating part 81 and the second mating part 82, so that the first mating part 81 and the second mating part 82 are not prone to displacement during welding, which helps to reduce the requirements of operators and improve the welding quality of the first mating part 81 and the second mating part 82.

[0040] Please refer to Figure 2 , Figure 4 , Figure 5 and Figure 8 In some embodiments, the positioning structure 3 extends continuously along the first horizontal direction and is located at the corresponding edge of the hollow area 22. Then, the two ends of the docking positions of the first docking part 81 and the second docking part 82 in the second horizontal direction can be located within the hollow area 22, which makes it easier for other tooling (such as the welding tooling 7 described later) to perform full welding on the docking positions of the first docking part 81 and the second docking part 82, thereby improving the connection strength and stability of the overall structure.

[0041] Alternatively, please refer to... Figure 2 , Figure 4 , Figure 5 and Figure 9 The positioning structures 3 are spaced apart on the outer periphery of the hollow area 22. Therefore, at least a portion of the docking positions of the first docking part 81 and the second docking part 82 in the second horizontal direction are not within the hollow area 22. This allows for further processing of the aforementioned portion after welding, thereby improving the connection strength and stability of the first docking part 81 and the second docking part 82. For example, after welding the docking positions of the first docking part 81 and the second docking part 82, the aforementioned portion can be edged with Kevlar wire, further enhancing the connection strength. Kevlar wire possesses excellent properties such as high strength and high modulus; edge binding increases the tensile and shear resistance of the connection, making the connection more stable and reliable.

[0042] In other embodiments of this application, please refer to Figure 1 and Figure 10The positioning structure 3 includes a first positioning part 31 and a second positioning part 32 spaced apart. The first positioning part 31 and the second positioning part 32 are respectively spaced apart on opposite sides of the hollow area 22 in the first horizontal direction. The first positioning part 31 is adapted to abut against the first docking part 81, and the second positioning part 32 is adapted to abut against the second docking part 82.

[0043] As can be seen, the first positioning part 31 and the second positioning part 32 are respectively spaced apart on opposite sides of the hollow area 22 in the first horizontal direction, so that the first positioning part 31 and the second positioning part 32 will not easily affect the arrangement of other tooling in the hollow area 22. The first positioning part 31 abuts against the first docking part 81 and the second positioning part 32 abuts against the second docking part 82, which can provide a precise positioning reference for the first docking part 81 and the second docking part 82, and the operation is relatively simple, which can reduce the difficulty of welding alignment tooling 100.

[0044] In some embodiments, the positioning structure 3 is positioned on one of the base plate 1 and the pressure plate 2, while the other of the base plate 1 and the pressure plate 2 is disposed to avoid the positioning structure 3; or, the other of the base plate 1 and the pressure plate 2 is detachably connected to the positioning structure 3; and / or, please refer to Figure 1 and Figure 10 The positioning structure 3 includes a first positioning part 31 and a second positioning part 32, and the position of the positioning structure 3 in the second horizontal direction is adjustable.

[0045] The positioning structure 3 is limited to one of the base plate 1 and the pressure plate 2, meaning that the position of the positioning structure 3 in one of the base plate 1 and the pressure plate 2 will not change, which facilitates the effective positioning of the first docking part 81 and the second docking part 82. The other of the base plate 1 and the pressure plate 2 is arranged to avoid the positioning structure 3, so that the other of the base plate 1 and the pressure plate 2 will not affect the arrangement of the positioning structure 3. Alternatively, the other of the base plate 1 and the pressure plate 2 can be detachably connected to the positioning structure 3, so that the other of the base plate 1 and the pressure plate 2 will also not affect the arrangement of the positioning structure 3.

[0046] For example, such as Figures 4-9As shown, the positioning structure 3 is a positioning protrusion that extends continuously along the first horizontal direction. The positioning structure 3 is integrally formed on one of the base plate 1 and the pressure plate 2, and the other of the base plate 1 and the pressure plate 2 is disposed to avoid the positioning structure 3; or, the positioning structure 3 includes multiple positioning pins, each positioning pin being independently and limited on one of the base plate 1 and the pressure plate 2, and the other of the base plate 1 and the pressure plate 2 being disposed to avoid the positioning pin (for example, the other of the base plate 1 and the pressure plate 2 is formed as a hole or groove to avoid the positioning pin). For another example, the positioning structure 3 is a positioning block that extends continuously along the first horizontal direction. The positioning structure 3 is integrally formed on one of the base plate 1 and the pressure plate 2, and the other of the base plate 1 and the pressure plate 2 is detachably connected to the positioning structure 3; or, the positioning structure 3 is a positioning block that extends continuously along the first horizontal direction, each positioning block being independently and limited on one of the base plate 1 and the pressure plate 2, and the other of the base plate 1 and the pressure plate 2 is detachably connected to the positioning block.

[0047] The positioning structure 3 is adjustable in the second horizontal direction, meaning it can move within the placement area 11. This allows the positioning structure 3 to more easily abut against the same end of the first mating part 81 and the second mating part 82 in the second horizontal direction, reducing the operational difficulty of the welding alignment fixture 100. When the positioning structure 3 is located at both ends of the placement area 11 in the second horizontal direction, the positioning structures 3 at both ends of the placement area 11 in the second horizontal direction are referred to as the first positioning structure and the second positioning structure. The adjustable position of the positioning structure 3 in the second horizontal direction allows for adjustment of the distance between the first positioning structure 3 and the second positioning structure 3 in the second horizontal direction, facilitating adaptation to different sizes of the first mating part 81 and the second mating part 82, thus improving the applicability of the welding alignment fixture 100. For example, the two ends of the conveyor belt 8 are respectively configured as the first mating part 81 and the second mating part 82, and the second horizontal direction represents the width of the conveyor belt 8. The aforementioned positioning structure 3 allows the welding alignment fixture 100 to adapt to conveyor belts 8 of different widths, further improving its applicability.

[0048] Please refer to Figures 2-4 In some embodiments, the pressure plate 2 and the base plate 1 are provided with at least one detachable first fastener 4. The first fastener 4 is provided independently of the positioning structure 3. In a first position, the first fastener 4 is provided in a direction inclined relative to the horizontal direction to fix the pressure plate 2 and the base plate 1 together. The first fastener 4 is spaced out on the outer side of the placement area 11 in the second horizontal direction. Exemplarily, the first fastener 4 is provided in a vertical direction or in a direction that forms a certain angle with the vertical and horizontal directions.

[0049] As can be seen, in the first position, the pressure plate 2 and the placement area 11 define a clamping space 21 for clamping the first mating part 81 and the second mating part 82. By passing the first fastener 4 through the base plate 1 and the pressure plate 2, and the first fastener 4 is arranged in a direction inclined relative to the horizontal direction, the first fastener 4 can provide the pressure plate 2 and the base plate 1 with a force at least in the vertical direction, so that the pressure plate 2 and the base plate 1 can clamp the first mating part 81 and the second mating part 82 more stably. The first mating part 81 and the second mating part 82 are not easy to shift or loosen during welding, which facilitates the improvement of the welding quality of the first mating part 81 and the second mating part 82.

[0050] The first fastener 4 is spaced out on the outer side of the placement area 11 in the second horizontal direction, so that the first fastener 4 does not easily affect the placement of the first mating part 81 and the second mating part 82 on the placement area 11, thereby improving the reliability of the welding alignment fixture 100. It can be understood that if the first fastener 4 is not provided, the gravity of the pressure plate 2 can be used for clamping, or other heavy objects that can be placed on the pressure plate 2 can be used to improve the clamping reliability.

[0051] Furthermore, the pressure plate 2 and the base plate 1 are provided with a plurality of detachable first fasteners 4. The plurality of first fasteners 4 are respectively provided on the outer sides of both sides of the placement area 11 in the second horizontal direction. The plurality of first fasteners 4 can provide greater clamping force for the pressure plate 2 and the base plate 1, so that the pressure plate 2 and the base plate 1 can clamp the first docking part 81 and the second docking part 82 more stably.

[0052] In this application, the method by which the first fastener 4 secures the pressure plate 2 and the base plate 1 is not limited. For example, the first fastener 4 can be secured by a threaded connection, or by a magnetic attraction, or by hydraulic or pneumatic means. As long as the base plate 1 and the pressure plate 2 are pressed together and easy to disassemble, this application does not impose any restrictions. For example, please refer to... Figure 13 The first fastener 4 includes at least one magnet 9. The base plate 1 is a metal part. The pressure plate 2 is embedded with the magnet 9 on the side facing the base plate 1 so that the pressure plate 2 and the base plate 1 can be detachably coupled. The base plate 1 and the pressure plate 2 are respectively provided with magnets 9, and the magnets 9 on the base plate 1 and the magnets 9 on the pressure plate 2 are magnetically attracted to each other.

[0053] Please refer to Figure 2 , Figure 3 , Figure 11 and Figure 12In some embodiments, the hollow area 22 is used to accommodate the welding fixture 7, which is used to weld the first mating part 81 and the second mating part 82. The welding alignment fixture 100 further includes a clamping structure 5, which is spaced above the pressure plate 2 and is adapted to be located on the upper side of the welding fixture 7 to apply a downward force to the welding fixture 7.

[0054] As can be seen, the clamping structure 5 is located on the upper side of the welding fixture 7 to apply a downward force to the welding fixture 7. That is, the clamping structure 5 applies a force towards the hollowed-out area 22 to the welding fixture 7, so that the first mating part 81 and the second mating part 82 can make closer contact during welding, making it less prone to problems such as incomplete welding, improving the welding quality of the first mating part 81 and the second mating part 82, and facilitating the improvement of the reliability of the welding alignment fixture 100. It can be understood that during the welding process of the welding fixture 7 welding the first mating part 81 and the second mating part 82, the welding alignment fixture 100 can always clamp and fix the first mating part 81 and the second mating part 82.

[0055] Please refer to Figure 2 , Figure 3 , Figure 11 and Figure 12 In some embodiments, the welding alignment fixture 100 further includes a connecting structure 6, which is connected to the pressing structure 5. The connecting structure 6 is located on the outer periphery of the hollow area 22 so that the connecting structure 6 does not easily interfere with the arrangement of other structures (such as the welding fixture 7 mentioned above) in the hollow area 22. The layout is more reasonable and facilitates the improvement of the reliability of the welding alignment fixture 100.

[0056] The connecting structure 6 includes a first connector 61, a pressing structure 5 spanning across both ends of the hollow area 22 in the first horizontal direction, the first connector 61 being fixedly or elastically connected to the pressure plate 2, and the first connector 61 being spaced apart from the base plate 1; and / or, the connecting structure 6 includes a second connector 62, the pressing structure 5 spanning across both ends of the hollow area 22 in the second horizontal direction, and the second connector 62 being fixedly or elastically connected to the pressure plate 2 and / or the base plate 1.

[0057] The first mating part 81 and the second mating part 82 are arranged along the first horizontal direction on the placement area 11. The clamping structure 5 spans across both ends of the hollow area 22 in the first horizontal direction. The first connecting member 61 is fixedly or elastically connected to the pressure plate 2, so that the first connecting member 61 can apply a downward force to the clamping structure 5, so that the clamping structure 5 can provide a greater clamping force for the welding fixture 7, which facilitates the improvement of the welding quality of the first mating part 81 and the second mating part 82. Among them, the first connecting member 61 is fixedly or elastically connected to the pressure plate 2. The first connecting member 61 is spaced apart from the base plate 1. When engaged in the first position, the pressure plate 2 and the placement area 11 define a clamping space 21 for clamping the first mating part 81 and the second mating part 82. By spaced apart from the base plate 1, the first connecting member 61 can also be spaced apart from the first mating part 81 and the second mating part 82 located in the clamping space 21, which does not easily affect the arrangement of the first mating part 81 and the second mating part 82, which facilitates the improvement of the reliability of the welding alignment fixture 100. For example, the first connector 61 is a bolt or a spring.

[0058] As an example, the first connector 61 includes a bolt and a nut, with the nut threadedly connected to the bolt. The bolt passes through the clamping structure 5 and the pressure plate 2. The nut is located on the side of the clamping structure 5 away from the welding fixture 7. The nut can rotate towards the welding fixture 7 to move the clamping structure 5 downward, so that the clamping structure 5 can provide a downward force to the welding fixture 7. As an example, the first connector 61 is a wing screw, which passes through the clamping structure 5 and the pressure plate 2. The head of the wing screw is located on the side of the clamping structure 5 away from the welding fixture 7. The wing screw can rotate towards the welding fixture 7 to move the clamping structure 5 downward, so that the clamping structure 5 can provide a downward force to the welding fixture 7.

[0059] The clamping structure 5 spans across both ends of the hollowed-out area 22 in the second horizontal direction, and the connecting structure 6 is located on the outer periphery of the hollowed-out area 22. This allows the second connecting member 62 to also be located on the outer side of the first mating portion 81 and the second mating portion 82 in the second horizontal direction. The second connecting member 62 does not easily affect the arrangement of the first mating portion 81 and the second mating portion 82. At the same time, the second connecting member 62 is fixedly or elastically connected to the pressure plate 2 and / or the base plate 1, so that the second connecting member 62 can apply a downward force to the clamping structure 5. This allows the clamping structure 5 to provide greater clamping force to the welding fixture 7, thereby improving the welding quality of the first mating portion 81 and the second mating portion 82. Exemplarily, the first connecting member 61 is a bolt or a spring.

[0060] As an example, the second connector 62 includes a bolt and a nut, the nut being threadedly connected to the bolt. The bolt passes through the clamping structure 5 and through the pressure plate 2 and / or the base plate 1. The nut is located on the side of the clamping structure 5 opposite to the welding fixture 7, and the nut can rotate towards the welding fixture 7 to move the clamping structure 5 downward, so that the clamping structure 5 can provide a downward force to the welding fixture 7. As an example, the second connector 62 is a wing screw, the wing screw passing through the clamping structure 5 and through the pressure plate 2 and / or the base plate 1. The head of the wing screw is located on the side of the clamping structure 5 opposite to the welding fixture 7, and the wing screw can rotate towards the welding fixture 7 to move the clamping structure 5 downward, so that the clamping structure 5 can provide a downward force to the welding fixture 7.

[0061] It is understood that the second connector 62 can be fixedly or elastically connected to the pressure plate 2, or the second connector 62 can be fixedly or elastically connected to the base plate 1, or the second connector 62 can be fixedly or elastically connected to both the pressure plate 2 and the base plate 1.

[0062] In other embodiments of this application, the clamping structure 5 and the connecting structure 6 may also be configured as an elastic clamping mechanism (e.g., a spring, tension spring, rubber band, or other elastic element), or the clamping structure 5 and the connecting structure 6 may be configured as a pneumatic actuator (a cylinder or other element that uses air as its actuation source), with the pneumatic actuator located on the upper side of the welding fixture 7 to apply a downward force to the welding fixture 7; or the clamping structure 5 and the connecting structure 6 may be configured as a hydraulic actuator (a hydraulic cylinder or other element that uses hydraulic pressure as its actuation source), with the hydraulic actuator located on the upper side of the welding fixture 7 to apply a downward force to the welding fixture 7.

[0063] It is understandable that the design of the connecting structure 6 requires a lower weight limit for the clamping structure 5.

[0064] In some embodiments, please refer to Figure 11 The pressing structure 5 includes: at least one first pressing member 51, the first pressing member 51 extending in a long strip along a first horizontal direction, and the first pressing member 51 extending beyond the hollow area 22, and the two ends of the first pressing member 51 being respectively connected to first connecting members 61; and / or, please refer to Figure 12 The pressing structure 5 includes: at least one second pressing member 52, the second pressing member 52 extends in a long strip along the second horizontal direction, and the second pressing member 52 extends beyond the hollow area 22, and the two ends of the length of the second pressing member 52 are respectively connected to second connecting members 62.

[0065] The first pressing member 51 extends into a long strip along the first horizontal direction, which has a relatively simple structure and is easy to process and manufacture. At the same time, it is easy to make the first pressing member 51 extend beyond the hollow area 22, so that after the first connecting member 61 is connected to the first pressing member 51, the first connecting member 61 can be located on the outer periphery of the hollow area 22. The first connecting member 61 is not easy to weld the fixture 7 arranged in the hollow area 22. At the same time, the first connecting member 61 is connected to both ends of the length of the first pressing member 51, so that the first connecting member 61 can provide a more comprehensive force for the welding fixture 7, which is not easy to deviate and improves the reliability of the welding alignment fixture 100.

[0066] The second pressing member 52 extends into a long strip along the second horizontal direction. Its structure is relatively simple and easy to process and manufacture. It also makes it easy for the second pressing member 52 to extend beyond the hollow area 22, so that after the second connecting member 62 is connected to the second pressing member 52, the second connecting member 62 can be located on the outer periphery of the hollow area 22. The second connecting member 62 is not easy to weld the fixture 7 arranged in the hollow area 22. At the same time, the two ends of the length of the second pressing member 52 are respectively connected to the second connecting member 62, so that the second connecting member 62 can provide a more comprehensive force for the welding fixture 7, making it less likely to deviate and improving the reliability of the welding alignment fixture 100.

[0067] In some embodiments, please refer to Figure 11 The first pressing element 51 is multiple and spaced apart along the second horizontal direction; and / or, please refer to Figure 12 The second pressing element 52 is multiple and is spaced apart along the first horizontal direction.

[0068] Multiple first pressing members 51 are arranged at intervals along the second horizontal direction. First connecting members 61 are connected to both ends of the length of the first pressing members 51, so that the multiple first pressing members 51 can provide more comprehensive force to the welding fixture 7, so that the welding fixture 7 is less likely to have incomplete welding when welding the first butt joint 81 and the second butt joint 82, thereby improving the welding quality of the first butt joint 81 and the second butt joint 82.

[0069] Multiple second pressing members 52 are arranged at intervals along the first horizontal direction. Second connecting members 62 are connected to both ends of the length of the second pressing members 52, so that the multiple second pressing members 52 can provide more comprehensive force to the welding fixture 7, so that the welding fixture 7 is less likely to have incomplete welding when welding the first butt joint 81 and the second butt joint 82, thereby improving the welding quality of the first butt joint 81 and the second butt joint 82.

[0070] In some embodiments, please refer to Figures 4-9One of the base plate 1 and the pressure plate 2 is provided with a receiving groove 12, and the other of the base plate 1 and the pressure plate 2 is provided with a protrusion 23. At least one end of the receiving groove 12 is closed in the second horizontal direction, and the groove sidewall of the at least one end (i.e. the closed end) of the receiving groove 12 in the second horizontal direction is configured as a positioning structure 3. In a first position, the protrusion 23 engages with the receiving groove 12 so that at least a portion of the clamping space 21 is located between the protrusion 23 and the receiving groove 12.

[0071] It is understood that the receiving groove 12 may be closed at one end in the second horizontal direction, so that the aforementioned end of the receiving groove 12 in the second horizontal direction constitutes the positioning structure 3; or both ends of the receiving groove 12 in the second horizontal direction may be closed, so that both ends of the receiving groove 12 in the second horizontal direction constitute the positioning structure 3.

[0072] As can be seen, the receiving groove 12 is closed at least one end in the second horizontal direction, so that the groove sidewall of the receiving groove 12 at the aforementioned end in the second horizontal direction is configured as the positioning structure 3. The same end of the first docking part 81 and the second docking part 82 in the second horizontal direction can abut against the groove sidewall to achieve the positioning of the first docking part 81 and the second docking part 82. At the same time, parts of the first docking part 81 and the second docking part 82 can be sandwiched between the protrusion 23 and the receiving groove 12, so that the first docking part 81 and the second docking part 82 are not easy to loosen or shift during welding, which facilitates the improvement of the welding quality of the first docking part 81 and the second docking part 82.

[0073] For example, the base plate 1 has a receiving groove 12, which can participate in forming the placement area 11. The pressure plate 2 has a protrusion 23. The groove sidewall of at least one end of the receiving groove 12 in the second horizontal direction is configured as a positioning structure 3. The groove sidewall extends along the first horizontal direction so that the positioning structure 3 can also extend along the first horizontal direction. The protrusion 23 is a closed ring structure and is arranged around the hollow area 22 so that the protrusion 23 can cooperate with the receiving groove 12. The positioning structure 3 can be spaced on the outer periphery of the hollow area 22. Alternatively, the protrusion 23 includes two first protrusions 231 extending along the second horizontal direction. The two first protrusions 231 are respectively spaced on opposite sides of the hollow area 22 in the first horizontal direction so that after the two first protrusions 231 cooperate with the receiving groove 12, the positioning structure 3 can be located at the corresponding edge of the hollow area 22. When it is necessary to assemble the first mating part 81 and the second mating part 82 into the welding alignment fixture 100, the first mating part 81 and the second mating part 82 can be placed in the receiving groove 12 formed on the base plate 1 to achieve the alignment and positioning of the first mating part 81 and the second mating part 82. Then, the pressure plate 2 is assembled onto the base plate 1, that is, the protrusion 23 on the pressure plate 2 is fitted into the receiving groove 12 of the base plate 1 so that the first mating part 81 and the second mating part 82 can be clamped between the protrusion 23 and the receiving groove 12.

[0074] It is understandable that the receiving groove 12 can be formed on the base plate 1 and the protrusion 23 can be formed on the pressure plate 2; or the receiving groove 12 can be formed on the pressure plate 2 and the protrusion 23 can be formed on the base plate 1. The surface of the protrusion 23 can participate in forming the placement area 11. In this case, the first docking part 81 and the second docking part 82 can be placed in the receiving groove 12 formed on the pressure plate 2 to achieve the alignment and positioning of the first docking part 81 and the second docking part 82. Then, the base plate 1 is assembled on the pressure plate 2, that is, the protrusion 23 on the base plate 1 is fitted into the receiving groove 12 of the pressure plate 2 so that the first docking part 81 and the second docking part 82 can be sandwiched between the protrusion 23 and the receiving groove 12.

[0075] Furthermore, at least one detachable first fastener 4 is provided on the base plate 1 and the pressure plate 2. The first fastener 4 is provided independently of the positioning structure 3, and the first fastener 4 is spaced apart on the outside of the placement area 11 in the second horizontal direction, that is, the first fastener 4 is located on the outside of the receiving groove 12 in the second horizontal direction.

[0076] Please refer to Figure 5 and Figure 6In some embodiments, the placement area 11 is formed with a downwardly recessed receiving groove 12, and both ends of the receiving groove 12 are closed in the first horizontal direction, so that the receiving groove 12 can have better structural strength, and the positioning structure 3 can provide a more stable positioning effect for the first docking part 81 and the second docking part 82, thereby improving the reliability of the welding alignment fixture 100.

[0077] Please refer to Figure 7 In other embodiments of this application, the receiving groove 12 is open at both ends in the first horizontal direction. For example, the receiving groove 12 is provided through the peripheral wall of the base plate 1 in the first horizontal direction at both ends in the first horizontal direction, so as to reduce the amount of manufacturing material used in the base plate 1 and save costs.

[0078] Please refer to Figure 10 In some embodiments, the pressure plate 2 and the base plate 1 are provided with a second fastener 33 and a third fastener 34, which detachably connect the pressure plate 2 and the base plate 1. The second fastener 33 and the third fastener 34 are respectively located on opposite sides of the hollowed-out area 22 in the first horizontal direction. The second fastener 33 and the third fastener 34 form a positioning structure 3. The second fastener 33 is adapted to abut against the first mating portion 81, and the third fastener 34 is adapted to abut against the second mating portion 82. Exemplarily, the second fastener 33 is one of the first positioning portion 31 and the second positioning portion 32, and the third fastener 34 is the other of the first positioning portion 31 and the second positioning portion 32.

[0079] As can be seen, the second fastener 33 and the third fastener 34 are respectively provided on both sides of the hollow area 22 in the first horizontal direction, so that at least one of the second fastener 33 and the third fastener 34 can abut against one side of the first mating part 81 in the second horizontal direction, thereby positioning the first mating part 81 and the second mating part 82. Moreover, the second fastener 33 and the third fastener 34 can also provide clamping force for the base plate 1 and the pressure plate 2, and together with the pressure plate 2 and the placement area 11, a clamping space 21 for clamping the first mating part 81 and the second mating part 82 is defined, so that the base plate 1 and the pressure plate 2 can clamp the first mating part 81 and the second mating part 82 more stably, and the first mating part 81 and the second mating part 82 are not easy to loosen or shift during welding, which helps to improve the reliability of the welding alignment fixture 100. Therefore, the second fastener 33 and the third fastener 34 can not only be used to position the first mating part 81 and the second mating part 82, but also to connect the base plate 1 and the pressure plate 2. That is, the second fastener 33 and the third fastener 34 can achieve multiple uses, which helps to reduce the cost of the welding alignment fixture 100.

[0080] For example, at least one of the second fastener 33 and the third fastener 34 is a bolt.

[0081] Please refer to Figure 10 In some embodiments, there are two second fasteners 33 and two third fasteners 34, forming two positioning structures 3 spaced apart along a second horizontal direction. The distance between the two positioning structures 3 in the second horizontal direction is adjustable. Exemplarily, the second fastener 33 and the third fastener 34, which are disposed opposite to it along the first horizontal direction of the cutout region 22, together constitute a single positioning structure 3. Thus, the two positioning structures 3 respectively abut against the first mating portion 81 and the second mating portion 82 on both sides of the second horizontal direction. Because the distance between the two positioning structures 3 in the second horizontal direction is adjustable, i.e., the spacing between the two positioning structures 3 in the second horizontal direction is adjustable, the welding alignment fixture 100 can be adapted to first mating portions 81 and second mating portions 82 of different sizes, thereby improving the applicability of the welding alignment fixture 100. For example, the two ends of the conveyor belt 8 are respectively configured as a first docking portion 81 and a second docking portion 82. The second horizontal direction is the width direction of the conveyor belt 8. The distance between the two positioning structures 3 in the second horizontal direction is adjustable so that the welding alignment fixture 100 can be adapted to conveyor belts 8 of different widths, thereby improving the applicability of the welding alignment fixture 100.

[0082] Please refer to Figure 10 In some embodiments, the base plate 1 has a first connecting portion 13 with two positioning structures 3, and the pressure plate 2 has a second connecting portion 24 with two positioning structures 3. Both the first connecting portion 13 and the second connecting portion 24 are formed as strip-shaped holes extending along a second horizontal direction. It can be seen that the first connecting portion 13 and the second connecting portion 24 are both strip-shaped holes, which have a relatively simple structure and are easy to manufacture. At the same time, the two positioning structures 3 can slide and engage along the second horizontal direction to change the spacing between the two positioning structures 3 in the second horizontal direction, so that the welding alignment fixture 100 can adapt to the first mating portion 81 and the second mating portion 82 of different sizes, thereby improving the applicability of the welding alignment fixture 100.

[0083] In other embodiments of this application, one of the first connecting portion 13 and the second connecting portion 24 is formed as a strip-shaped hole extending along a second horizontal direction, and the other of the first connecting portion 13 and the second connecting portion 24 is formed as a plurality of limiting mounting holes spaced apart along the second horizontal direction, wherein there are three or more limiting mounting holes, and at least one of the positioning structures 3 can be selectively provided in any limiting mounting hole. For example, the first connecting portion 13 is formed as a strip-shaped hole extending along the second horizontal direction, and the second connecting portion 24 is formed as a plurality of limiting mounting holes spaced apart along the second horizontal direction; or, for another example, the second connecting portion 24 is formed as a strip-shaped hole extending along the second horizontal direction, and the first connecting portion 13 is formed as a plurality of limiting mounting holes spaced apart along the second horizontal direction.

[0084] As can be seen, at least one of the positioning structures 3 can be selectively disposed in any limiting mounting hole to change the spacing between the two positioning structures 3 in the second horizontal direction, so that the welding alignment fixture 100 can be adapted to the first mating part 81 and the second mating part 82 of different sizes, thereby improving the applicability of the welding alignment fixture 100. At the same time, the strip hole extends along the second horizontal direction so that the positioning structure 3 is not prone to interference with the strip hole when disposed in any limiting mounting hole, thereby improving the reliability of the welding alignment fixture 100.

[0085] As an example, there are three limiting mounting holes. One positioning structure 3 is fixed in one of the limiting mounting holes, and another positioning structure 3 can be selectively disposed in the remaining two limiting mounting holes to change the distance between the two positioning structures 3 in the second horizontal direction. As an example, there are three limiting mounting holes, and both positioning structures 3 can be selectively disposed in either limiting mounting hole to change the distance between the two positioning structures 3 in the second horizontal direction. Of course, in other embodiments of this application, there can be more than three limiting mounting holes to accommodate more first mating portions 81 and second mating portions 82 of different sizes.

[0086] The welding apparatus 200 according to a second aspect of the present invention includes: a welding fixture 7 and a welding alignment fixture 100 according to a first aspect of the present invention. The welding fixture 7 is adapted to be disposed in the hollow area 22 to weld the first mating portion 81 and the second mating portion 82.

[0087] According to the embodiment of the present utility model, the welding device 200 adopts the above-mentioned welding alignment fixture 100 so that the first docking part 81 and the second docking part 82 have a good alignment and positioning effect. At the same time, the first docking part 81 and the second docking part 82 are not prone to loosening or displacement during welding, so that the welding device 200 can have a good welding effect and improve the reliability of the welding device 200.

[0088] Please refer to the following: Figure 3 , Figure 11 and Figure 12 The outer peripheral wall shape of the welding fixture 7 is adapted to the shape of the hollowed-out area 22, so that the welding fixture 7 is suitable for limiting and fitting within the hollowed-out area 22. For example, the outer peripheral wall of the welding fixture 7 is limited and fitted with the peripheral wall of the hollowed-out area 22. Therefore, the welding fixture 7 can be limited and fitted within the hollowed-out area 22, eliminating the need to adjust its position, reducing operational difficulty, and preventing displacement, thus ensuring stable operation and improving the reliability of the welding device 200.

[0089] Please refer to Figure 3 , Figure 11 , Figure 12 and Figure 14 In some embodiments, the welding fixture 7 includes a heating element 71 for hot-press welding. Exemplarily, the first mating portion 81 and the second mating portion 82 are welded using an lap joint method, meaning that the first mating portion 81 and the second mating portion 82 partially overlap. Solder (e.g., F46 adhesive film) is placed between the overlapping portions of the first mating portion 81 and the second mating portion 82. At least the overlapping portions of the first mating portion 81 and the second mating portion 82 are exposed through the cutout area 22, allowing the welding fixture 7 to heat the overlapping portions of the first mating portion 81 and the second mating portion 82, enabling them to thermally fuse and bond, thus achieving the welding of the first mating portion 81 and the second mating portion 82. Exemplarily, the heating element 71 is a high-temperature electric iron, which can employ electric heating, steam heating, or other energy heating methods.

[0090] The welding fixture 7 also has a gripping part 72 on its top. The gripping part 72 is located on the side of the welding fixture 7 away from the welding alignment fixture 100, so that when the welding fixture 7 is picked up by the gripping part 72, it is not easily interfered with by the welding alignment fixture 100. At the same time, by setting the gripping part 72, a clear mounting point is provided for the workers to pick up the welding fixture 7, so as to reduce the difficulty of operation.

[0091] Please refer to Figure 3 , Figure 11 , Figure 12 and Figure 14 In some embodiments, the hollow area 22 is used to accommodate the welding fixture 7, which is used to weld the first mating part 81 and the second mating part 82. The welding alignment fixture 100 also includes a clamping structure 5, which is spaced above the pressure plate 2 and is adapted to be located on the upper side of the welding fixture 7 to apply a downward force to the welding fixture 7. The clamping structure 5 is disposed to avoid the gripping part 72 and includes a first clamping part 53 and a second clamping part 54 respectively disposed on opposite sides of the gripping part 72.

[0092] As can be seen, the clamping structure 5 is located on the upper side of the welding fixture 7. The clamping structure 5 can apply a downward force to the welding fixture 7, so that the first mating part 81 and the second mating part 82 can make closer contact during welding, and it is less likely to have problems such as incomplete welding, thereby improving the welding quality of the first mating part 81 and the second mating part 82. Among them, the clamping structure 5 includes a first clamping part 53 and a second clamping part 54 located on opposite sides of the holding part 72, so that the clamping structure 5 is less likely to interfere with the holding part 72. The layout is more reasonable and facilitates the improvement of the reliability of the welding device 200.

[0093] As an example, the clamping structure 5 includes two first clamping members 51, which extend in an elongated shape along a first horizontal direction and are spaced apart along a second horizontal direction. The two first clamping members 51 respectively constitute a first clamping portion 53 and a second clamping portion 54. As an example, the clamping structure 5 includes two second clamping members 52, which extend in an elongated shape along a second horizontal direction and are spaced apart along a first horizontal direction. The two second clamping members 52 respectively constitute a first clamping portion 53 and a second clamping portion 54.

[0094] Furthermore, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. In addition, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed in this application.

[0095] In the description of this application, it should be understood that the terms "center," "lateral," "length," "thickness," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more. In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0096] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on the upper side" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "on the lower side" of the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0097] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0098] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A welding alignment fixture, characterized in that, The welding alignment fixture is used to position the first and second mating parts, which are arranged opposite each other along the first horizontal direction, before welding, including: A base plate, the upper surface of which has a placement area; A pressure plate is movably disposed relative to the base plate and has a first position and a second position. In the first position, the pressure plate is positioned above the base plate and defines a clamping space between itself and the placement area for clamping the first and second mating portions. In the second position, the pressure plate is disposed away from the placement area. The pressure plate also has a hollow area opposite to the placement area and adapted to communicate with the clamping space to expose the mating positions of the first and second mating portions. The base plate and the pressure plate are provided with a positioning structure. The positioning structure is located at at least one end of the placement area in the second horizontal direction and is used to abut against the same end of the first docking part and the second docking part in the second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction.

2. The welding alignment fixture according to claim 1, characterized in that, The positioning structure extends continuously along the first horizontal direction and is located at the corresponding edge of the hollow area, or is spaced apart on the outer periphery of the hollow area; or, The positioning structure includes a first positioning portion and a second positioning portion spaced apart. The first positioning portion and the second positioning portion are respectively spaced apart on opposite sides of the hollow area in the first horizontal direction. The first positioning portion is adapted to abut against the first docking portion, and the second positioning portion is adapted to abut against the second docking portion.

3. The welding alignment fixture according to claim 2, characterized in that, The positioning structure is limited to one of the base plate and the pressure plate, and the other of the base plate and the pressure plate is disposed to avoid the positioning structure; or, the other of the base plate and the pressure plate is detachably connected to the positioning structure; and / or. The positioning structure includes a first positioning part and a second positioning part, and the position of the positioning structure in the second horizontal direction is adjustable.

4. The welding alignment fixture according to claim 1, characterized in that, The pressure plate and the base plate are provided with at least one detachable first fastener. The first fastener is set independently of the positioning structure. In the first position, the first fastener is set in a direction inclined relative to the horizontal direction to fix the pressure plate and the base plate together. The first fastener is spaced out on the outside of the placement area in the second horizontal direction.

5. The welding alignment fixture according to claim 1, characterized in that, The hollowed-out area is used to accommodate welding fixtures, which are used to weld the first mating portion and the second mating portion. The welding alignment fixture also includes: A clamping structure is provided at intervals above the pressure plate and is adapted to be located on the upper side of the welding fixture to apply a downward force to the welding fixture.

6. The welding alignment fixture according to claim 5, characterized in that, The welding alignment fixture further includes a connecting structure, which connects to the clamping structure and is located on the outer periphery of the hollowed-out area. The connection structure includes: A first connecting member, wherein the clamping structure spans across both ends of the hollowed-out area in the first horizontal direction, the first connecting member is fixedly or elastically connected to the pressure plate, and is spaced apart from the base plate; and / or, The second connector, wherein the pressing structure spans across both ends of the hollowed-out area in the second horizontal direction, is fixedly or elastically connected to the pressure plate and / or the base plate.

7. The welding alignment fixture according to claim 6, characterized in that, The clamping structure includes: At least one first pressing member, the first pressing member extending in an elongated shape along the first horizontal direction and extending beyond the hollowed-out area, wherein the first pressing member is connected to the first connecting member at both ends of its length; and / or, At least one second pressing member, the second pressing member extending in a long strip along the second horizontal direction and extending beyond the hollow area, and the second connecting member being connected to both ends of the length of the second pressing member.

8. The welding alignment fixture according to claim 7, characterized in that, The first pressing element is multiple and spaced apart along the second horizontal direction; and / or, The second pressing member is multiple and is spaced apart along the first horizontal direction.

9. The welding alignment fixture according to any one of claims 1-8, characterized in that, One of the base plate and the pressure plate has a receiving groove, and the other has a protrusion. The receiving groove is closed at at least one end in the second horizontal direction, and the groove sidewall of the receiving groove at the at least one end in the second horizontal direction is configured as the positioning structure. In the first position, the protrusion engages with the receiving groove so that at least a portion of the clamping space is located between the protrusion and the receiving groove.

10. The welding alignment fixture according to claim 9, characterized in that, The placement area is formed with a downwardly recessed receiving groove. The receiving groove is closed at both ends in the first horizontal direction; or, The receiving groove is open at both ends in the first horizontal direction.

11. The welding alignment fixture according to any one of claims 1-8, characterized in that, The pressure plate and the base plate are provided with a second fastener and a third fastener, which detachably connect the pressure plate and the base plate. The two fasteners are respectively located on opposite sides of the hollow area in the first horizontal direction. The second fastener and the third fastener constitute the positioning structure. The second fastener is adapted to abut against the first mating part, and the third fastener is adapted to abut against the second mating part.

12. The welding alignment fixture according to claim 11, characterized in that, The second fastener and the third fastener are two in total, forming two positioning structures spaced apart along the second horizontal direction, the distance between the two positioning structures in the second horizontal direction being adjustable.

13. The welding alignment fixture according to claim 12, characterized in that, The base plate has a first connecting portion with two positioning structures, and the pressure plate has a second connecting portion with two positioning structures. Both the first connecting portion and the second connecting portion are formed as strip-shaped holes extending along the second horizontal direction; or, One of the first connecting portion and the second connecting portion is formed as a strip-shaped hole extending along the second horizontal direction, and the other is formed as a plurality of limiting mounting holes spaced apart along the second horizontal direction. There are three or more limiting mounting holes, and at least one of the positioning structures can be selectively provided in any of the limiting mounting holes.

14. A welding apparatus, characterized in that, include: The welding fixture and the welding alignment fixture according to any one of claims 1-13, wherein the welding fixture is adapted to be disposed in the hollow area to weld the first mating portion and the second mating portion, and the shape of the outer peripheral wall of the welding fixture is adapted to the shape of the hollow area so that the welding fixture is adapted to be positioned and fitted in the hollow area.

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