Multi-guided support wheel welding trolley for reducing weld residue in fillet welds of hull sections

Abstract

This multi-guided support wheel welding trolley, belonging to the technical field of semi-automatic metal welding, reduces the weld residue area in fillet welds of ship hull sections. The trolley includes a welding torch mechanism and a guide wheel mechanism. The welding torch mechanism comprises a welding torch locking assembly, an angle adjustment assembly, and a welding torch lifting assembly, allowing adjustment of the welding torch's height and angle. The guide wheel mechanism includes two sets of upper guide wheel assemblies and two sets of lower guide wheel assemblies, symmetrically arranged. The guide wheel assemblies can be adjusted forward and backward, and up and down. The upper guide wheels assist in reducing the weld residue area through the drainage holes or R-holes of the profiles. For profiles with drainage holes in the middle or R-holes at the ends, this trolley utilizes an optimized guide wheel structure to ensure welding operations at these locations, expanding the weldable area and reducing unweldable weld residue areas, resulting in significant efficiency improvements and low cost.

Description

Technical Field

[0001] This invention patent relates to the field of semi-automatic metal welding. Specifically, it relates to using a guide support wheel to increase the welding operation range of a semi-automatic welding trolley, reduce the weld area left after welding by the semi-automatic trolley, and reduce manual welding construction in the weld area. Background Technology

[0002] In industries such as shipbuilding and large steel structure construction, welding trolleys are widely used for welding large workpieces. In ship hull welding, due to the enormous size of the hull, welding trolleys allow for convenient movement of welding equipment to different welding positions. Profiles with drainage holes in the middle or R-holes at the ends are widely used in hull and steel structure production. However, existing welding trolleys cannot pass through fillet welds on profiles with R-holes at both ends or drainage holes in the middle due to the lack of support surface. This necessitates leaving weld marks, requiring subsequent manual repair, which wastes labor, reduces welding efficiency, and increases labor costs. Summary of the Invention

[0003] To address the problems existing in the prior art, the present invention provides a multi-guided support wheel welding trolley that reduces the weld area left in the fillet welds of the hull section structure, facilitating fillet welding at R-holes or drainage holes and reducing the weld area left.

[0004] The technical means adopted in this invention are as follows: a multi-guided support wheel welding trolley that reduces the weld residue area of ​​fillet welds in hull section structures. It includes a trolley body, a trolley handle, and trolley wheels. The trolley includes a welding torch mechanism and a guide wheel mechanism. The welding torch mechanism includes a welding torch locking assembly, an angle adjustment assembly, and a welding torch lifting assembly. In the welding torch locking assembly, the welding torch is positioned between an L-shaped locking block and a top locking block. The bottom of the handwheel lever is hinged to the L-shaped locking block, and the upper part is inserted into the gap of the top locking block. Rotating the locking handwheel causes the handwheel lever sleeve to rotate relative to the handwheel lever until the handwheel lever... The bottom end of the sleeve acts on the top locking block; the end of the L-shaped locking block in the angle adjustment assembly is fixedly connected to one end of the welding torch connecting rod, and the other end of the welding torch connecting rod is set in the angle adjustment block; loosen the fixing bolt on the angle adjustment block, rotate the welding torch connecting rod to adjust the angle of the welding torch, and then tighten the fixing bolt on the angle adjustment block after the angle is adjusted; a lifting rod is set on the lifting handwheel in the welding torch lifting assembly, and the lifting rod is connected to the connecting block and the angle adjustment block; the lifting rod moves up and down, driving the welding torch connecting rod set in the angle adjustment block to move, thereby driving the welding torch to move up and down;

[0005] The guide wheel mechanism includes two sets of upper guide wheel assemblies and two sets of lower guide wheel assemblies. The two sets of upper guide wheel assemblies are symmetrically arranged, and the two sets of lower guide wheel assemblies are also symmetrically arranged. In the lower guide wheel assembly, the lower guide wheel is mounted on the lower guide wheel connecting plate via an axle. The lower guide wheel connecting plate is connected to the lower connecting plate adjusting plate. The lower connecting plate adjusting plate is bolted to the trolley body, and the bolts engage with the lower adjusting groove of the lower connecting plate adjusting plate to adjust the lower guide wheel forward and backward. In the upper guide wheel assembly, the upper guide wheel is mounted on the upper guide wheel connecting plate via an axle. The upper guide wheel connecting plate is connected to the upper connecting plate adjusting plate. The upper connecting plate adjusting plate is bolted to the lower connecting plate adjusting plate, and the bolts engage with the upper adjusting groove of the upper connecting plate adjusting plate to adjust the upper guide wheel up and down. The distance between the two upper guide wheels is less than the distance between the two lower guide wheels.

[0006] Furthermore, the two upper guide wheels and the two lower guide wheels act on the same workpiece.

[0007] Furthermore, the height of the upper guide wheel is higher than the top of the R-hole or water flow hole on the workpiece.

[0008] Furthermore, a welding torch baffle is provided on the front side of the trolley body to prevent welding slag from splashing.

[0009] Compared with existing technologies, this invention has the following advantages: The trolley includes a welding torch mechanism and a guide wheel mechanism; the welding torch mechanism includes a welding torch locking assembly, an angle adjustment assembly, and a welding torch lifting assembly. The guide wheel mechanism includes two sets of upper guide wheel assemblies and two sets of lower guide wheel assemblies, the two sets of upper guide wheel assemblies and the two sets of lower guide wheel assemblies being symmetrically arranged; the guide wheel assemblies can be adjusted forward and backward and up and down. The point of action of the upper guide wheels on the profile is higher than the top of the drainage hole or R-hole, thereby assisting the trolley to pass through the drainage hole or R-hole of the profile and reducing the weld seam residue. This trolley, by optimizing the structure of the guide wheels, expands the weldable area of ​​the trolley and reduces the weld seam residue, resulting in significant efficiency improvement and low cost. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 A side view of a welding trolley for multi-guided support wheels designed to reduce the weld area left in fillet welds of hull sections.

[0012] Figure 2Front view of a multi-guided support wheel welding trolley designed to reduce the weld area left in fillet welds of hull sections.

[0013] Figure 3 This is a schematic diagram illustrating the welding effect of the present invention.

[0014] In the diagram: 1. Trolley body, 2. Trolley handle, 3. Trolley wheel, 4. Lower guide wheel, 5. Lower guide wheel connecting plate, 6. Lower connecting plate adjusting plate, 7. Upper guide wheel, 8. Upper guide wheel connecting plate, 9. Upper connecting plate adjusting plate, 10. Welding torch, 11. L-shaped locking block, 12. Top locking block, 13. Handwheel lever, 14. Locking handwheel, 15. Handwheel lever sleeve, 16. Lifting handwheel, 17. Lifting rod, 18. Connecting block, 19. Angle adjusting block, 20. Welding torch connecting rod, 21. Welding torch baffle. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0018] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0019] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0020] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0021] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0022] Figure 1 and Figure 2 A multi-guided support wheel welding trolley for reducing the weld residue area of ​​fillet welds in hull section structures is shown. It includes a trolley body 1, a trolley handle 2, and trolley wheels 3. The trolley includes a welding torch mechanism and a guide wheel mechanism. The welding torch mechanism includes a welding torch locking assembly, an angle adjustment assembly, and a welding torch lifting assembly. In the welding torch locking assembly, the welding torch 10 is positioned between an L-shaped locking block 11 and a top locking block 12. The bottom of a handwheel lever 13 is hinged to the L-shaped locking block 11, and its upper part is inserted into the gap of the top locking block 12. Rotating the locking handwheel 14 causes the handwheel lever sleeve 15 to rotate relative to the handwheel lever 13 until the bottom end of the handwheel lever sleeve 15 acts on the top locking block 12. 2. In the angle adjustment assembly, the end of the L-shaped locking block 11 is fixedly connected to one end of the welding torch connecting rod 20, and the other end of the welding torch connecting rod 20 is set in the angle adjustment block 19. Loosen the fixing bolt on the angle adjustment block 19, rotate the welding torch connecting rod 20 to adjust the angle of the welding torch, and then tighten the fixing bolt on the angle adjustment block 19 after the angle is adjusted. In the welding torch lifting assembly, the lifting handwheel 16 is provided with a lifting rod 17, which is connected to the connecting block 18 and the angle adjustment block 19. The lifting rod 17 moves up and down, which drives the welding torch connecting rod 20 set in the angle adjustment block 19 to move, thereby driving the welding torch 10 to move up and down.

[0023] The guide wheel mechanism includes two sets of upper guide wheel assemblies and two sets of lower guide wheel assemblies. The two sets of upper guide wheel assemblies are symmetrically arranged, and the two sets of lower guide wheel assemblies are also symmetrically arranged. In the lower guide wheel assembly, the lower guide wheel 4 is mounted on the lower guide wheel connecting plate 5 via an axle. The lower guide wheel connecting plate 5 is connected to the lower connecting plate adjusting plate 6, which is bolted to the trolley body 1. The bolts engage with the lower adjusting groove 22 on the lower connecting plate adjusting plate 6 to adjust the lower guide wheel 4 forward and backward. In the upper guide wheel assembly, the upper guide wheel 7 is mounted on the upper guide wheel connecting plate 8 via an axle. The upper guide wheel connecting plate 8 is connected to the upper connecting plate adjusting plate 9, which is bolted to the lower connecting plate adjusting plate 6. The bolts engage with the upper adjusting groove 23 on the upper connecting plate adjusting plate 9 to adjust the upper guide wheel 7 up and down. The distance between the two upper guide wheels 7 is less than the distance between the two lower guide wheels 4. The two upper guide wheels 7 and the two lower guide wheels 4 act on the same workpiece. The height of the upper guide wheel 7 is higher than the top of the R-hole or drainage hole on the workpiece. A welding torch baffle 21 is also provided on the front side of the trolley body 1 to block welding slag spatter.

[0024] When operating using the above technical solution, place the welding torch 10 in the L-shaped locking block 11, rotate the top locking block 12 to lock it onto the welding torch 10, then insert the handwheel rod 13 into the gap of the top locking block 12, and rotate the locking handwheel 14; the locking handwheel 14 drives the handwheel rod sleeve 15 to rotate, and the threads on the handwheel rod sleeve 15 and handwheel rod 13 engage until the bottom end of the handwheel rod sleeve 15 presses against the top locking block 12, thus locking the welding torch 10. Adjust the angle of the welding torch by loosening the bolt on the angle adjusting block 19, rotating the welding torch connecting rod 20, which in turn drives the L-shaped locking block 11 and the welding torch 10 to rotate, adjusting to a suitable welding angle, and then tightening the bolt on the angle adjusting block 19. Adjust the height of the welding torch by rotating the lifting handwheel 16, which causes the lifting rod 17 to drive the connecting block 18 and the angle adjusting block 19 to move up and down, and the angle adjusting block 19 in turn drives the welding connecting rod 20, the L-shaped locking block 11, and the welding torch 10 to move up and down.

[0025] After adjusting the angle and height of the welding torch, loosen the bolt in the lower adjusting groove 22, adjust the distance between the lower guide wheel 4 and the workpiece, and tighten the bolt in the lower adjusting groove 22 after confirming the distance. Then loosen the bolt in the upper adjusting groove 23, adjust the height of the upper guide wheel 7, and tighten the bolt in the upper adjusting groove 23 after adjusting the height to ensure that the height of the upper guide wheel 7 is higher than the top of the R hole or the drainage hole.

[0026] At the start of operation, the welding torch is positioned at the beginning of the R-hole and guided by two upper guide wheels 7 and one lower guide wheel 4. As welding progresses, the other lower guide wheel 4 is applied to the workpiece, and then the two upper guide wheels 7 and two lower guide wheels 4 work together to guide it. Similarly, when the welding torch is working in the drainage hole area, it is also guided by two upper guide wheels 7 and one lower guide wheel 4. After passing through the drainage hole, it is guided again by the two upper guide wheels 7 and two lower guide wheels 4. The guide wheel assembly can be adjusted forward and backward as well as up and down. The upper guide wheels help expand the weldable area of ​​the trolley by passing through the drainage holes or R-holes of the profile, reducing unwelded areas and improving welding efficiency.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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 or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-guided support wheel welding trolley for reducing the weld residue area of ​​fillet welds in hull section structures, comprising a trolley body (1), a trolley handle (2), and trolley wheels (3), characterized in that: The trolley includes a welding torch mechanism and a guide wheel mechanism; the welding torch mechanism includes a welding torch locking assembly, an angle adjustment assembly, and a welding torch lifting assembly. In the welding torch locking assembly, the welding torch (10) is positioned between an L-shaped locking block (11) and a top locking block (12). The bottom of the handwheel lever (13) is hinged to the L-shaped locking block (11), and the upper part is inserted into the gap of the top locking block (12). Rotating the locking handwheel (14) causes the handwheel lever sleeve (15) to rotate relative to the handwheel lever (13) until the bottom end of the handwheel lever sleeve (15) acts on the top locking block (12). In the angle adjustment assembly, the end of the L-shaped locking block (11) is fixedly connected to the welding torch assembly. One end of the rod (20) and the other end of the welding torch connecting rod (20) are set in the angle adjustment block (19); loosen the fixing bolt on the angle adjustment block (19), rotate the welding torch connecting rod (20) to adjust the angle of the welding torch, and then tighten the fixing bolt on the angle adjustment block (19) after the angle is adjusted; a lifting rod (17) is set on the lifting handwheel (16) in the welding torch lifting assembly, and the lifting rod (17) is connected to the connecting block (18) and the angle adjustment block (19); the lifting rod (17) moves up and down, driving the welding torch connecting rod (20) set in the angle adjustment block (19) to move, thereby driving the welding torch (10) to move up and down; The guide wheel mechanism includes two sets of upper guide wheel assemblies and two sets of lower guide wheel assemblies. The two sets of upper guide wheel assemblies are symmetrically arranged, and the two sets of lower guide wheel assemblies are symmetrically arranged. In the lower guide wheel assembly, the lower guide wheel (4) is mounted on the lower guide wheel connecting plate (5) via a wheel axle. The lower guide wheel connecting plate (5) is connected to the lower connecting plate adjusting plate (6). The lower connecting plate adjusting plate (6) is mounted on the trolley body (1) by bolts. The bolts engage with the lower adjusting groove (22) on the lower connecting plate adjusting plate (6) to adjust the lower guide wheel. The guide wheel (4) is adjusted forward and backward; the upper guide wheel (7) in the upper guide wheel assembly is set on the upper guide wheel connecting plate (8) through the wheel axle. The upper guide wheel connecting plate (8) is connected to the upper connecting plate adjusting plate (9). The upper connecting plate adjusting plate (9) is fixed on the lower connecting plate adjusting plate (6) by bolts. The bolts cooperate with the upper adjusting groove (23) on the upper connecting plate adjusting plate (9) to adjust the upper guide wheel (7) up and down; the distance between the two upper guide wheels (7) is less than the distance between the two lower guide wheels (4).

2. The multi-guided support wheel welding trolley for reducing the weld residue area of ​​fillet welds in hull section structures according to claim 1, characterized in that: Two upper guide wheels (7) and two lower guide wheels (4) act on the same workpiece.

3. The multi-guided support wheel welding trolley for reducing the weld residue area of ​​fillet welds in hull section structures according to claim 2, characterized in that: The height of the upper guide wheel (7) is higher than the top of the R hole or water flow hole on the workpiece.

4. The multi-guided support wheel welding trolley for reducing the weld residue area of ​​fillet welds in hull section structures according to claim 3, characterized in that: The front side of the trolley body (1) is also provided with a welding gun baffle (21) to block welding slag splash.

Images