Welding pad apparatus

Abstract

The utility model relates to welding technical field provides a kind of welding backing plate device, it includes: backing plate body and pressing mechanism.Backing plate body has installation surface and receiving surface, and at least two grooves are formed on receiving surface;Pressing mechanism is slidably arranged on installation surface, for pressing test piece.The utility model provides a kind of welding backing plate device, at least two grooves are formed on backing plate body, satisfy the welding needs of various types of weld joint form, by selecting and using appropriate groove backing plate, provide good support and constraint for weld in welding process, ensure the forming quality and penetration effect of weld;Pressing mechanism makes receiving surface closely adhere on welding workpiece, ensure that the positional relationship of backing plate body and weld meets the welding process requirement.The utility model uses the cooperation of multipurpose welding temporary backing plate and pressing mechanism, with the advantages of high positioning accuracy, high stability, reusable and simple operation, improve welding quality and production efficiency, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of welding technology and provides a welding backing plate device. Background Technology

[0002] In the welding production of aluminum alloy structures for high-speed trains, fully penetrated butt welds are crucial for ensuring product quality and strength. To guarantee welding quality, temporary backing plates are indispensable tools for assisting the welding process. However, currently widely used ordinary temporary backing plates have several drawbacks: 1. Poor positioning accuracy: Ordinary temporary backing plates are prone to positional deviations during installation, which can lead to inaccurate welding references and consequently affect the quality and dimensional accuracy of the weld.

[0003] 2. Insufficient stability: During the welding process, due to the influence of factors such as welding heat deformation and arc force, ordinary temporary backing plates are prone to displacement and deformation, making it difficult to guarantee the quality of weld formation and potentially resulting in welding defects such as irregular welds and lack of fusion.

[0004] 3. Poor reusability: Some ordinary temporary backing plates are for single use only. Even reusable backing plates will degrade in performance after multiple uses due to wear and deformation, rendering them unusable. This not only significantly increases production costs but also reduces production efficiency. Furthermore, the operation process for ordinary temporary backing plates is cumbersome, requiring substantial time and manpower for installation, adjustment, and disassembly, severely hindering the smoothness of welding operations. Utility Model Content

[0005] This utility model provides a welding backing plate device to solve the defects of existing temporary backing plates, such as poor positioning accuracy, insufficient stability, poor reusability, and cumbersome operation, thereby improving welding quality and production efficiency and reducing production costs.

[0006] This utility model provides a welding pad device, comprising: The backing plate body has an mounting surface and a receiving surface, the receiving surface being used to receive the test piece, and at least two grooves are formed on the receiving surface, the grooves being suitable for the flow of welding molten metal to form a weld. A clamping mechanism is slidably mounted on the mounting surface and is used to clamp the test piece.

[0007] According to the welding pad device of this utility model, a mounting groove is formed on the mounting surface, and the clamping mechanism is slidably disposed on the mounting groove.

[0008] According to the welding pad device of this utility model, the mounting groove extends along a first direction; The clamping mechanism includes: The slider is slidably disposed in the mounting groove along the first direction; The first telescopic unit has a first end connected to the slider and a second end capable of telescopic movement in a second direction. The second telescopic unit has a first end and a second end of the first telescopic unit, and the second end is capable of telescopic movement in a third direction. A clamping unit is located at the second end of the second telescopic unit and is used to clamp the test piece.

[0009] According to the welding pad device of this utility model, the first direction is parallel to the extension direction of the groove, and the first direction, the second direction and the third direction are perpendicular to each other.

[0010] According to the welding pad device of this utility model, the first telescopic unit includes: A horizontal telescopic rod has a first fixed end and a horizontal telescopic end that are movably connected to each other. The first fixed end is connected to the slider, and the horizontal telescopic end is connected to the second telescopic unit. The first locking element is used to lock the relative positions of the first fixed end and the lateral telescopic end.

[0011] According to the welding pad device of this utility model, the second telescopic unit includes: A vertical telescopic rod has a second fixed end and a vertical telescopic end that are movably connected to each other. The second fixed end is connected to the horizontal telescopic end, and the vertical telescopic end is connected to the clamping unit. The second locking element is used to lock the relative positions of the second fixed end and the vertical telescopic end.

[0012] According to the welding pad device of this utility model, the clamping unit includes: The clamping element has its first end connected to the vertical telescopic end; The connecting rod has its first end connected to the second end of the clamping member; A clamping rod is movably connected to the connecting rod to adjust the clamping distance between the clamping rod and the clamping member.

[0013] According to the welding pad device of this utility model, the clamping mechanism further includes: A rotating unit is disposed between the first telescopic unit and the second telescopic unit, and is used to adjust the angle between the first telescopic unit and the second telescopic unit.

[0014] According to the welding pad device of this utility model, the rotating unit includes: A rotating pin is rotatably disposed at the second end of the first telescopic unit and connected to the first end of the second telescopic unit. The third locking element is used to lock the rotation angle of the rotating pin.

[0015] According to the welding pad device of this utility model, the groove includes: A rectangular groove is provided on the outer edge of the receiving surface; A semi-circular groove is provided on the receiving surface and is collinear with the geometric center line of the receiving surface.

[0016] This utility model provides a welding backing plate device, comprising: a backing plate body and a clamping mechanism. The backing plate body has an mounting surface and a receiving surface. The receiving surface is used to receive the test piece, and at least two grooves are formed on the receiving surface, which are suitable for the inflow of welding molten metal to form a weld. The clamping mechanism is slidably disposed on the mounting surface and is used to clamp the test piece. This utility model provides a welding backing plate device, with at least two grooves formed on the backing plate body, which can meet the welding needs of various weld joint types. By selecting a backing plate with appropriate grooves, good support and constraint can be provided for the weld during the welding process, ensuring the weld formation quality and penetration effect. The clamping mechanism ensures that the receiving surface is tightly fitted to the welding workpiece, ensuring that the positional relationship between the backing plate body and the weld meets the welding process requirements. This utility model, using a multi-purpose temporary welding backing plate and a clamping mechanism, has the advantages of high positioning accuracy, high stability, reusability, and simple operation, improving welding quality and production efficiency, and reducing production costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the welding pad device provided in one embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the pressing mechanism provided in one embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the welding backing plate device provided in one embodiment of the present invention, applicable to butt welds with the same plate thickness combination.

[0021] Figure 4 This is a schematic diagram of the welding backing plate device provided in one embodiment of the present invention, which is suitable for T-shaped butt welds.

[0022] Figure 5This is a schematic diagram of the welding backing plate device provided in one embodiment of the present invention, which is applicable to butt welds with different plate thickness combinations.

[0023] Figure label: 1: Pad body; 2: Semi-circular groove; 3: Clamping rod; 4: Clamping component; 5: Connecting rod; 6: Vertical telescopic rod; 7: Horizontal telescopic rod; 8: Rectangular groove; 9: Mounting groove; 10: Connecting interface; 11: Specimen; 12: Slider; 13: First locking component; 14: Second locking component; 15: Rotating pin; 16: Third locking component. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and are not intended to 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 embodiment.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this embodiment, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this embodiment, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0028] In this embodiment of the utility model, unless otherwise explicitly 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," "on top of," and "over" 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 "under" 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.

[0029] like Figures 1 to 5 As shown, this utility model provides a welding pad device. The welding pad device includes: a pad body 1 and a clamping mechanism.

[0030] The pad body 1 has an mounting surface and a receiving surface. The receiving surface is used to receive the test piece 11, and at least two grooves are formed on the receiving surface. The grooves are suitable for the flow of welding liquid to form a weld. The clamping mechanism is slidably disposed on the mounting surface and is used to clamp the test piece 11.

[0031] Specifically, the receiving surface is located on the upper surface of the base plate body 1 and is used to support the test piece 11. The receiving surface has at least two grooves in different positions, which match the welding position of the test piece 11 to facilitate the flow of welding fluid into the grooves. During use, the grooves can effectively promote full fusion between the root of the weld bevel and the welding fluid, which is beneficial to ensuring welding quality and improving welding reliability. The mounting surface is located on the side of the base plate body 1; the bottom surface of the base plate body 1 is equipped with a connecting interface 10, which connects other base plate bodies 1 to realize the assembly of multiple base plate bodies 1.

[0032] The clamping mechanism can be installed on one or both sides of the pad body 1 as needed to clamp the test piece 11, preventing it from shifting or shaking, and ensuring that the test piece 11 remains in a fixed position during welding. The clamping mechanism and the pad body 1 are installed in a modular manner, meaning the clamping mechanism can be easily removed and replaced from the pad body 1, allowing for operation with a suitable pad body 1 and clamping mechanism. In the following embodiments, the mounting groove 9 and the slider 12 are used for easy removal and replacement.

[0033] For example, the groove includes two rectangular grooves 8 located on the outer edge of the bearing surface and a semi-circular groove 2 located in the center of the bearing surface, which can meet the welding requirements of different test pieces 11, as detailed below: exist Figure 3 In the structure shown, butt welds with the same plate thickness are used. The welds of the two specimens 11 are located in the semi-circular groove 2, allowing the welding molten metal to enter the semi-circular groove 2, thus meeting the welding requirements of the two specimens 11. It can be understood that in this embodiment, the clamping mechanism is located on both sides of the pad body 1, simultaneously clamping the two specimens 11.

[0034] exist Figure 4 In the structure shown, for the T-shaped butt weld, the weld seam of the two specimens 11 is located in a rectangular groove 8 on one side, allowing the welding molten metal to enter the rectangular groove 8, thereby meeting the welding requirements of the two specimens 11. It is understood that in this embodiment, the clamping mechanism on one side is removed, and a clamping mechanism is only provided on one side to clamp the specimen 11.

[0035] exist Figure 5 In the structure shown, the butt welds of the two test pieces 11 with different plate thickness combinations are located in a rectangular groove 8 on one side, allowing the welding molten metal to enter the rectangular groove 8, thereby meeting the welding requirements of the two test pieces 11. It can be understood that in this embodiment, the clamping mechanism is located on both sides of the pad body 1, simultaneously clamping the two test pieces 11.

[0036] As can be seen, the backing plate body 1 of this utility model is a multi-purpose temporary welding backing plate. By setting multiple grooves, it can meet the welding needs of various weld joint types. By selecting a backing plate with appropriate grooves, it can provide good support and constraint for the weld during the welding process, ensuring the weld formation quality and penetration effect. The clamping mechanism ensures that the bearing surface is tightly attached to the welding workpiece, ensuring that the positional relationship between the backing plate body 1 and the weld meets the welding process requirements.

[0037] This utility model provides a welding backing plate device, comprising: a backing plate body 1 and a clamping mechanism. The backing plate body 1 has an mounting surface and a receiving surface. The receiving surface is used to receive the test piece 11, and at least two grooves are formed on the receiving surface, which are suitable for the flow of welding molten metal to form a weld. The clamping mechanism is slidably disposed on the mounting surface and is used to clamp the test piece 11. The welding backing plate device provided by this utility model, with at least two grooves formed on the backing plate body 1, can meet the welding needs of various weld joint types. By selecting a backing plate with appropriate grooves, good support and constraint can be provided for the weld during the welding process, ensuring the weld formation quality and penetration effect. The clamping mechanism ensures that the receiving surface is tightly fitted to the welding workpiece, ensuring that the positional relationship between the backing plate body 1 and the weld meets the welding process requirements. This utility model, using a multi-purpose temporary welding backing plate and a clamping mechanism, has the advantages of high positioning accuracy, high stability, reusability, and simple operation, improving welding quality and production efficiency, and reducing production costs.

[0038] In one embodiment of this utility model, a mounting groove 9 is formed on the mounting surface, and a clamping mechanism is slidably disposed on the mounting groove 9. Preferably, the mounting surface is located on two opposing sides of the pad body 1, and the clamping mechanism can be installed on one side or both sides as needed.

[0039] In one embodiment of this utility model, the mounting groove 9 extends along a first direction. The clamping mechanism includes: a slider 12, a first telescopic unit, a second telescopic unit, and a clamping unit. The slider 12 is slidably disposed in the mounting groove 9 along the first direction; the first end of the first telescopic unit is connected to the slider 12, and its second end is capable of telescopic movement along a second direction; the first end of the second telescopic unit is connected to the second end of the first telescopic unit, and its second end is capable of telescopic movement along a third direction; the clamping unit is disposed at the second end of the second telescopic unit and is used to clamp the specimen 11. Specifically, the clamping mechanism realizes its sliding movement on the mounting groove 9 through the slider 12, and realizes movement in the other two directions through the first telescopic rod and the second telescopic rod, thereby driving the clamping unit to move to a designated position to clamp the specimen 11.

[0040] In one embodiment of this utility model, the first direction is parallel to the extension direction of the groove, and the first direction, the second direction, and the third direction are perpendicular to each other. In this example, the XOY three-axis vertical coordinate system is used for illustration. The first direction and the second direction are along the horizontal X and Y axes, and the third direction is along the vertical Z axis. By determining the movement directions of the slider 12, the first telescopic unit, and the second telescopic unit, the pressing unit is driven to move accordingly, which enables precise adjustment of the height, angle, and horizontal position of the pad body 1.

[0041] In one embodiment of this utility model, the first telescopic unit includes a lateral telescopic rod 7 and a first locking member 13. The lateral telescopic rod 7 has a first fixed end and a lateral telescopic end that are movably connected to each other. The first fixed end is connected to the slider 12, and the lateral telescopic end is connected to the second telescopic unit. The first locking member 13 is used to lock the relative position of the first fixed end and the lateral telescopic end. In this embodiment, the lateral telescopic rod 7 consists of two nested lateral rods. One end of one lateral rod is fixedly connected to the slider 12, and the other slidably nests on the lateral rod. Lateral telescopic adjustment is achieved by the relative lateral movement of the two rods, and the first locking member is used to lock the relative lateral displacement of the two rods. Optionally, the two lateral rods have multiple positioning holes. When the first locking member is inserted into the positioning holes, the lateral telescopic rod 7 is locked. Preferably, the first locking member can be a locking pin or a bolt, etc.

[0042] In one embodiment of this utility model, the second telescopic unit includes a vertical telescopic rod 6 and a second locking member 14. The vertical telescopic rod 6 has a second fixed end and a vertical telescopic end that are movably connected to each other. The second fixed end is connected to the horizontal telescopic end, and the vertical telescopic end is connected to the pressing unit. The second locking member 14 is used to lock the relative position of the second fixed end and the vertical telescopic end. The structure of the second telescopic unit in this embodiment is similar to that of the first telescopic unit in the above embodiment, except that its telescopic direction is vertical.

[0043] In one embodiment of this utility model, the clamping unit includes: a clamping member 4, a connecting rod 5, and a clamping rod 3. The first end of the clamping member 4 is connected to a vertical telescopic end; the first end of the connecting rod 5 is connected to the second end of the clamping member 4, and the connecting rod 5 is movably connected to the clamping rod 3. Specifically, a first threaded portion is formed on the connecting rod 5; a second threaded portion is formed on the clamping rod 3, and the second threaded portion engages with the first threaded portion to adjust the clamping distance between the clamping rod 3 and the clamping member 4. In this embodiment, the clamping member 4 and the clamping rod 3 are used to clamp the specimen 11. The clamping member 4 is located at the bottom of the specimen 11, and the clamping rod 3 is located at the top of the specimen 11. The distance between the clamping member 4 and the clamping rod 3 is adjusted through the threaded connection between the connecting rod 5 and the clamping rod 3, thereby adapting to the clamping needs of specimens 11 with different thicknesses.

[0044] In one embodiment of the present invention, the clamping mechanism further includes a rotating unit, which is disposed between the first telescopic unit and the second telescopic unit, for adjusting the angle between the first telescopic unit and the second telescopic unit. By rotating the rotating unit, the angle between the clamping member 4 and the clamping rod 3 can be adjusted, thereby adjusting the angle of the test piece 11 to fit tightly against the pad body 1.

[0045] In one embodiment of this utility model, the rotating unit includes a rotating pin 15 and a third locking member 16. The rotating pin 15 is rotatably disposed at the second end of the first telescopic unit and connected to the first end of the second telescopic unit; the third locking member 16 is inserted sequentially into the rotating pin 15 and the second end of the first telescopic unit to lock the rotation angle of the rotating pin 15. Specifically, the angle between the first telescopic unit and the second telescopic unit can be adjusted by rotating the rotating pin 15, and the rotation angle of the rotating pin 15 can be locked by inserting the third locking member 16 into the through hole of the rotating pin 15 and the transverse telescopic rod 7, thereby ensuring that the first telescopic unit and the second telescopic unit will not wobble after locking. Preferably, the third locking member 16 can be a locking pin.

[0046] In one embodiment of this utility model, the groove includes a rectangular groove 8 and a semi-circular groove 2. The rectangular groove 8 is disposed on the outer edge of the receiving surface; the semi-circular groove 2 is disposed on the receiving surface and is collinear with the geometric center line of the receiving surface. Specifically, two rectangular grooves 8 are provided, located at the left and right ends of the receiving surface respectively, and one or more semi-circular grooves 2 can be provided, with at least one semi-circular groove 2 being collinear with the geometric center line of the receiving surface.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A welding pad device, characterized in that, include: The backing plate body (1) has an mounting surface and a receiving surface, the receiving surface being used to receive the test piece, and at least two grooves are formed on the receiving surface, the grooves being suitable for the flow of welding liquid to form a weld; A clamping mechanism is slidably mounted on the mounting surface and is used to clamp the test piece.

2. The welding backing plate device according to claim 1, characterized in that, An installation groove (9) is formed on the mounting surface, and the clamping mechanism is slidably disposed on the installation groove (9).

3. The welding backing plate device according to claim 2, characterized in that, The mounting groove (9) extends along a first direction; The clamping mechanism includes: The slider (12) is slidably disposed in the mounting groove (9) along the first direction; The first telescopic unit has a first end connected to the slider (12) and a second end capable of telescopic movement in a second direction; The second telescopic unit has a first end and a second end of the first telescopic unit, and the second end is capable of telescopic movement in a third direction. A clamping unit is located at the second end of the second telescopic unit and is used to clamp the test piece.

4. The welding backing plate device according to claim 3, characterized in that, The first direction is parallel to the extension direction of the groove, and the first direction, the second direction, and the third direction are perpendicular to each other.

5. The welding backing plate device according to claim 3, characterized in that, The first telescopic unit includes: The horizontal telescopic rod (7) has a first fixed end and a horizontal telescopic end that are movably connected to each other. The first fixed end is connected to the slider (12), and the horizontal telescopic end is connected to the second telescopic unit. The first locking element (13) is used to lock the relative positions of the first fixed end and the lateral telescopic end.

6. The welding backing plate device according to claim 5, characterized in that, The second telescopic unit includes: The vertical telescopic rod (6) has a second fixed end and a vertical telescopic end that are movably connected to each other. The second fixed end is connected to the horizontal telescopic end, and the vertical telescopic end is connected to the clamping unit. The second locking element (14) is used to lock the relative position of the second fixed end and the vertical telescopic end.

7. The welding backing plate device according to claim 6, characterized in that, The clamping unit includes: The clamping member (4) has its first end connected to the vertical telescopic end; The first end of the connecting rod (5) is connected to the second end of the clamping member (4); The clamping rod (3) is movably connected to the connecting rod (5) to adjust the clamping distance between the clamping rod (3) and the clamping member (4).

8. The welding backing plate device according to claim 3, characterized in that, The clamping mechanism further includes: A rotating unit is disposed between the first telescopic unit and the second telescopic unit, and is used to adjust the angle between the first telescopic unit and the second telescopic unit.

9. The welding backing plate device according to claim 8, characterized in that, The rotating unit includes: A rotating pin (15) is rotatably disposed at the second end of the first telescopic unit and connected to the first end of the second telescopic unit; The third locking element (16) is used to lock the rotation angle of the rotating pin (15).

10. The welding pad device according to any one of claims 1 to 9, characterized in that, The groove includes: A rectangular groove (8) is provided on the outer edge of the receiving surface; A semi-circular groove (2) is provided on the bearing surface and is collinear with the geometric center line of the bearing surface.

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