A welding fixture for sports equipment

Abstract

This application provides a welding fixture for sports equipment, belonging to the field of welding technology. It includes a worktable, a first end limiting plate, and a second end limiting plate. A support frame is connected to the worktable, and the support frame has U-shaped frames. At least two U-shaped frames are inserted into and cooperate with a vertical rod, located at the vertical and curved sections of the vertical rod, respectively. At least two U-shaped frames are inserted into and cooperate with a horizontal rod, located at the horizontal and curved sections of the horizontal rod, respectively. The insertion positions of the U-shaped frames avoid the welding position. The first end limiting plate is connected to the worktable. The first end limiting plate contacts the end of the horizontal rod away from the welding position. The second end limiting plate is connected to the worktable via the support platform. The second end limiting plate contacts the lower end of an inclined rod to limit the placement position of the inclined rod. Through the above-mentioned configuration, this application, by combining multi-point support, avoiding the welding position, and end limiting, can improve positioning accuracy and stability, and enhance welding quality.

Description

Technical Field

[0001] This application belongs to the field of welding technology, specifically relating to a welding fixture for sports equipment. Background Technology

[0002] Exercise equipment is a general term for equipment, gear, and supplies designed for fitness and exercise. Chinese utility model patent application number 201922486414.0 discloses a fitness equipment seat assembly and a seated fitness device, including a mounting frame, a positioning plate, and an adjusting rod. The mounting frame has a seat on top and is used to fit onto the support of the fitness equipment and move along the support. The positioning plate passes through the mounting frame vertically and vertically and is used to fix it to the support. Multiple slots are spaced along the length of the positioning plate on the surface facing the seat. The adjusting rod is rotatably connected to the mounting frame, with a locking plate at one end and a free end for the exerciser to operate.

[0003] The main structure of the aforementioned seat includes a diagonal rod, a horizontal rod, and a vertical rod; the diagonal rod is inclined, one end of the horizontal rod is horizontal, the other end of the horizontal rod is bent and welded to the diagonal rod near the bottom; the bottom end of the vertical rod is welded to the top of the horizontal rod, the top of the vertical rod is bent and welded to the diagonal rod near the top.

[0004] The welding method in the existing technology requires one operator to hold the two rods to be welded, and then another person to weld the connection between the two rods. The above welding method is prone to welding position deviation, and the welding quality is inconsistent during batch processing. Utility Model Content

[0005] This application provides a welding fixture for sports equipment, which aims to solve the problem of inconsistent welding quality in batch processing using existing welding methods.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: A welding fixture for sports equipment is provided, comprising: A workbench is provided, on which a support frame is connected. The support frame has U-shaped frames that are inserted into diagonal rods, vertical rods, and horizontal rods. There are at least two U-shaped frames that are inserted into the vertical rods, located at the vertical and curved sections of the vertical rods, respectively. There are at least two U-shaped frames that are inserted into the horizontal rods, located at the horizontal and curved sections of the horizontal rods, respectively. The insertion positions of the U-shaped frames avoid welding positions. A first end limiting plate is connected to the workbench; the first end limiting plate contacts the end of the horizontal bar away from the welding position to limit the placement position of the horizontal bar; The second end limiting plate is connected to the workbench via a support platform; the second end limiting plate contacts the lower end of the inclined rod to limit the placement position of the inclined rod.

[0007] In one possible implementation, a U-shaped frame is also connected to the second end limiting plate, and the U-shaped frame on the second end limiting plate is inserted into the diagonal rod. Each of the U-shaped frames faces the same direction; after welding is completed, the horizontal bars, vertical bars and diagonal bars are detached from the U-shaped frames.

[0008] In one possible implementation, a nut is fixed to the outside of each of the U-shaped frames, and the U-shaped frames have through holes aligned with the threaded holes of the nut. Each nut is equipped with a clamping bolt, and the clamping end of the clamping bolt is connected to a flexible component.

[0009] In one possible implementation, the bottom of the support frame extends with a support portion, and the support frame also extends with a plurality of limiting portions, the limiting portions corresponding one-to-one with the U-shaped frame, and the U-shaped frame and the limiting portions are detachably connected.

[0010] In one possible implementation, each of the limiting portions has a limiting groove at its end, and each of the U-shaped frames has a slider that slides in cooperation with the limiting groove. Wherein, the limiting groove is a wedge-shaped groove, or the limiting groove is a T-shaped groove.

[0011] In one possible implementation, the slider has a positioning groove, and the limiting portion has a threaded hole aligned with the positioning groove. The limiting part is provided with a positioning bolt, which is threadedly engaged with the limiting part, and the threaded end of the positioning bolt can be inserted into the positioning groove.

[0012] In one possible implementation, there is a clearance space between the limiting portion and the welding position.

[0013] In one possible implementation, the top of the workbench has a slot that engages with the support frame, and a fixing plate is connected to the outside of the support frame, the fixing plate being fixed to the workbench by bolts.

[0014] In one possible implementation, the top of the first end limiting plate is bent, and the bent portion of the top of the first end limiting plate contacts the top of the horizontal bar.

[0015] In one possible implementation, the front side of the first end limiting plate is the insertion side, and the rear side of the first end limiting plate is the limiting side; a baffle is fixedly provided on the limiting side of the first end limiting plate, and the baffle contacts the side of the horizontal bar.

[0016] This application provides a welding fixture for sports equipment. Compared with the prior art, it features U-shaped frames that interlock with diagonal, vertical, and horizontal bars on a support frame. The interlocking structure of the U-shaped frames allows for initial positioning of each bar. At least two U-shaped frames interlock with the vertical bar, located at its vertical and curved sections respectively, and at least two U-shaped frames interlock with the horizontal bar, located at its horizontal and curved sections respectively. This provides multi-point support for the curved bars from different locations, ensuring the stability of the bars' shape. The U-shaped frames avoid the welding position, preventing interference with the welding operation and allowing welding torches and other tools to directly apply force to the welding area. A first end limiting plate contacts the end of the horizontal bar furthest from the welding position, limiting the placement of the horizontal bar. A second end limiting plate contacts the lower end of the diagonal bar, limiting its placement. Through the above-mentioned design, this application, by combining multi-point support, avoiding the welding position, and end limiting, improves the positioning accuracy and stability of the diagonal, vertical, and horizontal bars, thereby enhancing welding quality. Attached Figure Description

[0017] Figure 1 A schematic diagram illustrating the fit between a welding fixture and a rod in an embodiment of this application; Figure 2 for Figure 1 Enlarged diagram of section A in the middle; Figure 3 for Figure 1 Enlarged diagram of section B in the middle; Figure 4 A schematic diagram of a welding fixture for sports equipment provided in an embodiment of this application; Figure 5 A schematic diagram of the support frame portion of a welding fixture for sports equipment provided in an embodiment of this application; Figure 6 for Figure 5 Enlarged diagram of section C; Figure 7 A schematic diagram of the first end limiting plate portion of a welding fixture for sports equipment provided in an embodiment of this application; Figure 8 A schematic diagram of the support plate portion of a welding fixture for sports equipment provided in an embodiment of this application; Figure 9 A schematic diagram of the support platform portion of a welding fixture for sports equipment provided in an embodiment of this application; Figure 10 for Figure 9 Enlarged schematic diagram of section D in the middle; Figure 11 This is a schematic diagram of the slider portion of a welding fixture for sports equipment provided in an embodiment of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. First end limiting plate; 3. Second end limiting plate; 31. Support platform; 4. Support frame; 41. Support part; 42. Limiting part; 43. Limiting groove; 44. Slider; 45. Support plate; 46. Positioning bolt; 47. Pressure plate; 5. Diagonal bar; 6. Vertical bar; 7. Horizontal bar; 8. U-shaped frame; 81. Nut; 82. Tightening bolt; 83. Flexible component. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] Please refer to the following: Figures 1 to 11 This application describes a welding fixture for sports equipment. The welding fixture includes a worktable 1, a first end limiting plate 2, and a second end limiting plate 3. A support frame 4 is connected to the worktable 1, and the support frame 4 has U-shaped frames 8 that interlock with a diagonal rod 5, a vertical rod 6, and a horizontal rod 7. At least two U-shaped frames 8 are interlocked with the vertical rod 6, located at the vertical and curved sections of the vertical rod 6, respectively. At least two U-shaped frames 8 are interlocked with the horizontal rod 7, located at the horizontal and curved sections of the horizontal rod 7, respectively. The interlocking positions of the U-shaped frames 8 avoid the welding position. The first end limiting plate 2 is connected to the worktable 1. The first end limiting plate 2 contacts the end of the horizontal rod 7 away from the welding position to limit the placement position of the horizontal rod 7. The second end limiting plate 3 is connected to the worktable 1 via a support platform 31. The second end limiting plate 3 contacts the lower end of the diagonal rod 5 to limit the placement position of the diagonal rod 5.

[0021] This application provides a welding fixture for sports equipment. Compared with the prior art, it uses U-shaped frames 8 on the support frame 4 to interlock with the diagonal rod 5, vertical rod 6, and horizontal rod 7. The interlocking structure of the U-shaped frames 8 allows for initial positioning of each rod. At least two U-shaped frames 8 interlock with the vertical rod 6, located at its vertical and curved sections respectively, and at least two U-shaped frames 8 interlock with the horizontal rod 7, located at its horizontal and curved sections respectively. This provides multi-point support for rods with curved structures from different locations, ensuring the morphological stability of the rods. By avoiding the welding position, interference with the welding operation can be avoided, allowing tools such as welding torches to directly act on the welding area; the first end limiting plate 2 contacts the end of the horizontal bar 7 away from the welding position, which can limit the placement position of the horizontal bar 7; the second end limiting plate 3 contacts the lower end of the inclined bar 5, which can limit the placement position of the inclined bar 5; through the above-mentioned settings, this application can improve the positioning accuracy and stability of the inclined bar 5, the vertical bar 6 and the horizontal bar 7 by combining multi-point support, avoiding the welding position and end limiting, and can improve the welding quality.

[0022] In some embodiments, such as Figures 1 to 11 As shown, a U-shaped frame 8 is also connected to the second end limiting plate 3, and the U-shaped frame 8 on the second end limiting plate 3 is inserted into the diagonal rod 5; wherein, each U-shaped frame 8 has the same orientation; after welding is completed, the horizontal rod 7, the vertical rod 6 and the diagonal rod 5 are disengaged from the U-shaped frame 8.

[0023] A U-shaped frame 8 is provided on the second end limiting plate 3 to engage with the diagonal rod 5, which can limit the bottom position of the diagonal rod 5, further enhancing the stability of the diagonal rod 5 positioning and reducing the wobbling of the diagonal rod 5.

[0024] The opposite sides of all the U-shaped frames 8 are in contact with the opposite sides of the corresponding rods, which can restrict the rods from swinging within the U-shaped frames 8.

[0025] All U-shaped frames 8 face the same direction. After the rods are welded, the horizontal rod 7, vertical rod 6, and diagonal rod 5 can detach from the U-shaped frame 8 in the same direction without adjusting the detachment direction for different rods. This reduces interference between rods during the part removal process, avoids workpiece collisions or deformations caused by inconsistent part removal directions, improves the convenience of part removal, and protects the integrity of the welded workpiece.

[0026] The opening of the U-shaped frame 8 faces forward. When placing the rods, the horizontal rod 7, vertical rod 6, and diagonal rod 5 are inserted into the U-shaped frame 8 from the front. The horizontal rod 7, vertical rod 6, and diagonal rod 5 contact the bottom plate on the rear side of the corresponding U-shaped frame 8, which limits the movement of the horizontal rod 7, vertical rod 6, and diagonal rod 5.

[0027] In some embodiments, such as Figures 1 to 11As shown, each U-shaped frame 8 is fixedly provided with a nut 81 on its outer side, and the U-shaped frame 8 has a through hole aligned with the threaded hole of the nut 81; each nut 81 is provided with a clamping bolt 82, and the clamping end of the clamping bolt 82 is connected to a flexible component 83; the flexible component 83 can be a rubber pad, which is fixed to the threaded end of the clamping bolt 82; the rubber pad is made of a softer material than the rod, so the rubber pad deforms during the clamping process of the clamping bolt 82 clamping the rod, reducing the possibility of scratching the rod.

[0028] The horizontal section of the horizontal bar 7 is placed on the workbench 1, so the workbench 1 can support the horizontal section of the horizontal bar 7; the support frame 4 can be equipped with only a pressure plate 47 at the horizontal section position of the horizontal bar 7. The pressure plate 47 contacts the top of the horizontal section of the horizontal bar 7, which can limit the height of the horizontal bar 7; the nut 81 is fixed to the top of the pressure plate 47, and the tightening bolt 82 is threadedly engaged with the nut 81. By tightening the tightening bolt 82, the rubber pad of the tightening bolt 82 can be pressed against the top of the horizontal bar 7.

[0029] The nut 81 fixed on the outside of the U-shaped frame 8 is aligned with the through hole on the U-shaped frame 8; by rotating the clamping bolt 82, the clamping bolt 82 can be clamped against the rod, which can apply additional fastening force on the basis of insertion and positioning, reduce the displacement of the rod, and improve the positioning reliability.

[0030] The tightening end of the tightening bolt 82 is fixed to the flexible component 83, which can prevent the threaded end of the tightening bolt 82 from directly contacting the surface of the rod, thereby reducing the occurrence of indentations on the surface of the rod.

[0031] In some embodiments, such as Figures 1 to 11 As shown, the bottom of the support frame 4 extends with a support portion 41, and several limiting portions 42 extend from the support frame 4. The limiting portions 42 correspond one-to-one with the U-shaped frame 8, and the U-shaped frame 8 and the limiting portions 42 are detachably connected.

[0032] The support portion 41 extending from the bottom of the support frame 4 is fixedly engaged with the workbench 1, which can support the support frame 4, improve the overall structural stability of the support frame 4, and reduce the occurrence of tilting or swaying of the support frame 4.

[0033] Several limiting parts 42 extending from the support frame 4 correspond one-to-one with the U-shaped frame 8 and are detachably connected. When the U-shaped frame 8 is damaged, it is easy to replace the U-shaped frame 8; there is no need to replace the entire support frame 4.

[0034] In some embodiments, such as Figures 1 to 11 As shown, each limiting part 42 has a limiting groove 43 at its end, and each U-shaped frame 8 has a slider 44 that slides in cooperation with the limiting groove 43; wherein, the limiting groove 43 is a wedge groove or a T-shaped groove.

[0035] Taking the T-shaped groove 43 as an example, the T-shaped groove and the slider 44 on the U-shaped frame 8 slide together. After the slider 44 slides into place, it can limit the position between the U-shaped frame 8 and the support frame 4 in the thickness direction of the support frame 4, reduce the occurrence of the U-shaped frame 8 falling off the support frame 4, and improve the stability between the U-shaped frame 8 and the support frame 4.

[0036] To improve the stability of the U-shaped frame 8, the bottom of the U-shaped frame 8, which is set at an inclination or at a horizontal position, is supported. Specifically, a support plate 45 is fixed on the support frame 4, and the support plate 45 contacts the bottom of the U-shaped frame 8 to support the U-shaped frame 8.

[0037] The U-shaped frame 8 on the second end limiting plate 3 is also limited by a support plate 45, which is fixedly set at the lower top of the support platform 31. After the second end limiting plate 3 and the U-shaped frame 8 are installed on the support platform 31, the second end limiting plate 3 and the U-shaped frame 8 can contact the support plate 45 to provide support.

[0038] When the U-shaped frame 8 is set vertically, it only serves as a left and right limiter and the rods will not press on the U-shaped frame 8. Therefore, there is no need to set a support plate 45 for the vertically set U-shaped frame 8.

[0039] In some embodiments, such as Figures 1 to 11 As shown, the slider 44 has a positioning groove, and the limiting part 42 has a threaded hole aligned with the positioning groove; wherein, the limiting part 42 is provided with a positioning bolt 46, the positioning bolt 46 is threadedly engaged with the limiting part 42, and the threaded end of the positioning bolt 46 can be inserted into the positioning groove.

[0040] The positioning groove on the slider 44 is aligned with the threaded hole on the limiting part 42. The positioning bolt 46 is threadedly engaged with the limiting part 42, and its threaded end can be inserted into the positioning groove, so that the U-shaped frame 8 can be fixed on the support frame 4.

[0041] After the slider 44 slides into the limiting groove 43, the U-shaped frame 8 can be initially fixed. Then, by rotating the positioning bolt 46 and inserting the end of the positioning bolt 46 into the positioning groove, the slider 44 can be double-limited in both the axial and radial directions, ensuring the connection between the slider 44 and the limiting part 42; and enhancing the stability and reliability of the connection between the U-shaped frame 8 and the limiting part 42.

[0042] In some embodiments, such as Figures 1 to 11 As shown, there is clearance space between the limiting part 42 and the welding position.

[0043] By providing clearance space between the limiting part 42 and the welding position, the limiting part 42 can be prevented from obstructing the welding operation in physical space, and the operator can weld the rod connection position with the welding torch.

[0044] In some embodiments, such as Figures 1 to 11 As shown, the top of the workbench 1 has a slot that engages with the support frame 4. A fixing plate is connected to the outside of the support frame 4, and the fixing plate is fixed to the workbench 1 by bolts.

[0045] The support frame 4 is inserted into the slot on the top of the workbench 1 to position the support frame 4 and make the fixing plate contact the top of the workbench 1. The fixing plate can be fixed to the workbench 1 by bolts, reducing the installation deviation between the support frame 4 and the workbench 1.

[0046] The fixing plate on the outside of the support frame 4 is fixed to the workbench 1 with bolts, which can further lock the support frame 4 firmly on the workbench 1 on the basis of plug-in positioning, thereby improving the overall stability of the support frame 4. At the same time, the plug-in and bolt fixing method makes the disassembly and assembly of the support frame 4 simple and convenient for maintenance.

[0047] In some embodiments, such as Figures 1 to 11 As shown, the top of the first end limiting plate 2 is bent, and the bent part of the top of the first end limiting plate 2 contacts the top of the horizontal bar 7.

[0048] The top of the first end limiting plate 2 is bent, and the bent part contacts the top of the horizontal bar 7; on the basis of the original end contact limiting, the limiting constraint on the horizontal bar 7 in the vertical direction is added, which can reduce the vertical displacement of the horizontal bar 7 and further improve the stability of the horizontal bar 7.

[0049] In some embodiments, such as Figures 1 to 11 As shown, the front side of the first end limiting plate 2 is the insertion side, and the rear side of the first end limiting plate 2 is the limiting side; a baffle is fixedly provided on the limiting side of the first end limiting plate 2, and the baffle is in contact with the side of the horizontal rod 7.

[0050] A baffle is fixedly installed on the rear side of the first end limiting plate 2. The baffle contacts the side of the horizontal rod 7. Combined with the contact limiting of the first end limiting plate 2 and the end of the horizontal rod 7 and the upper and lower limiting of the top bending part, a three-dimensional limiting constraint is formed on the end of the horizontal rod 7 in the axial, vertical and lateral directions. This reduces the lateral movement and torsion of the horizontal rod 7 on the horizontal plane, thereby reducing the positional error of the horizontal rod 7, improving the accuracy and reliability of the positioning of the horizontal rod 7, and ensuring the dimensional consistency of the workpiece after welding.

[0051] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A welding fixture for sports equipment, characterized in that, include: A workbench, on which a support frame is connected, and the support frame has U-shaped frames that are respectively inserted and matched with diagonal bars, vertical bars and horizontal bars; There are at least two U-shaped frames that are inserted into the vertical rod, located on the vertical section and the curved section of the vertical rod respectively; there are at least two U-shaped frames that are inserted into the horizontal rod, located on the horizontal section and the curved section of the horizontal rod respectively; the insertion positions of the U-shaped frames avoid the welding positions; A first end limiting plate is connected to the workbench; the first end limiting plate contacts the end of the horizontal bar away from the welding position to limit the placement position of the horizontal bar; The second end limiting plate is connected to the workbench via a support platform; the second end limiting plate contacts the lower end of the inclined rod to limit the placement position of the inclined rod.

2. The welding fixture for sports equipment as described in claim 1, characterized in that, A U-shaped frame is also connected to the second end limiting plate, and the U-shaped frame on the second end limiting plate is inserted into the inclined rod. Each of the U-shaped frames faces the same direction; after welding is completed, the horizontal bars, vertical bars and diagonal bars are detached from the U-shaped frames.

3. The welding fixture for sports equipment as described in claim 1, characterized in that, Each of the U-shaped frames is fixed with a nut on its outer side, and the U-shaped frame has a through hole aligned with the threaded hole of the nut; Each nut is equipped with a clamping bolt, and the clamping end of the clamping bolt is connected to a flexible component.

4. The welding fixture for sports equipment as described in claim 1, characterized in that, The bottom of the support frame extends into a support portion, and several limiting portions extend from the support frame. The limiting portions correspond one-to-one with the U-shaped frame, and the U-shaped frame and the limiting portions are detachably connected.

5. The welding fixture for sports equipment as described in claim 4, characterized in that, Each of the limiting parts is provided with a limiting groove at its end, and each of the U-shaped frames is fixed with a slider that slides in cooperation with the limiting groove; Wherein, the limiting groove is a wedge-shaped groove, or the limiting groove is a T-shaped groove.

6. The welding fixture for sports equipment as described in claim 5, characterized in that, The slider has a positioning groove, and the limiting part has a threaded hole aligned with the positioning groove; The limiting part is provided with a positioning bolt, which is threadedly engaged with the limiting part, and the threaded end of the positioning bolt can be inserted into the positioning groove.

7. The welding fixture for sports equipment as described in claim 4, characterized in that, There is clearance space between the limiting part and the welding position.

8. The welding fixture for sports equipment as described in claim 1, characterized in that, The top of the workbench has a slot that engages with the support frame, and a fixing plate is connected to the outside of the support frame. The fixing plate is fixed to the workbench by bolts.

9. The welding fixture for sports equipment as described in claim 1, characterized in that, The top of the first end limiting plate is bent, and the bent portion of the top of the first end limiting plate contacts the top of the horizontal bar.

10. The welding fixture for sports equipment as described in claim 9, characterized in that, The front side of the first end limiting plate is the insertion side, and the rear side of the first end limiting plate is the limiting side; a baffle is fixedly provided on the limiting side of the first end limiting plate, and the baffle contacts the side of the horizontal bar.

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