Welding fixing tool

By designing a welding fixture suitable for the top beam of a loader cab, and utilizing a combination of support components, limit components, and clamping components, the problem of inconsistent welding positions was solved, achieving an efficient and stable welding process and reducing costs.

CN223789830UActive Publication Date: 2026-01-13XCMG CONSTRUCTION MACHINERY CO LTD SCIENCE & TECHNOLOGY BRANCH
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Patent Information

Application Number
CN202520329783.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-01-13
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

During the welding process of the top beam of the loader cab, the lack of fixed fixtures leads to inconsistent welding positions, increases positioning difficulty, makes the product prone to deformation and has poor stability. Furthermore, the existing positioning fixtures have poor versatility, increasing production costs and workshop space requirements.

Method used

A welding fixture comprising a base, a first fixing mechanism, and a second fixing mechanism was designed. Through the combination of support components, limit components, and clamping components, the welding parts can be quickly positioned and stabilized, adapting to different models of cab roof beams.

Benefits of technology

It improves the stability and accuracy of the welding process, reduces production costs, saves space in the production workshop, and improves production efficiency and welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a welding fixing tool which comprises a base, a first fixing mechanism and a second fixing mechanism, the first fixing mechanism is used for fixing a first welded part, the second fixing mechanism is used for fixing a second welded part, and the first fixing mechanism and the second fixing mechanism are detachably connected to the base. The axis of the first fixing mechanism intersects with the axis of the second fixing mechanism, and each of the first fixing mechanism and the second fixing mechanism comprises a supporting assembly, a limiting assembly and a clamping assembly used for being matched with the supporting assembly to clamp a welded part. The fixing device is used for solving the problem of part fixing in the cab top beam welding process, can be suitable for cab top beams of different models, and has high universality.
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Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a welding fixture. Background Technology

[0002] Loaders, as earthmoving machinery, play an indispensable role in mining, quarrying, and other large-scale construction sites. However, their operating environment is relatively harsh, with some environments posing risks of falling objects and vehicle rollover. Therefore, the structural strength requirements for the loader cab roof beam are high. The cab roof beam is usually welded from crossbeams and longitudinal beams, and the welding process is a key factor determining its structural strength.

[0003] Currently, some problems still exist in the welding process of the cab roof beam. Without fixed tooling, the welding position of the roof beam is not fixed, increasing the difficulty of positioning and leading to easy deformation and poor stability of the product during welding, making it difficult to guarantee welding quality. Furthermore, there are many models of cab roof beams, and the existing positioning tooling has poor versatility, which not only increases production costs but also easily occupies workshop space. Utility Model Content

[0004] To address the technical problems existing in the prior art, this utility model provides a welding fixing fixture to solve the problem of fixing components during the welding process of the cab roof beam. It is also applicable to different models of cab roof beams and has high versatility.

[0005] To achieve the above objectives, this utility model provides a welding fixture, including a base and a first fixing mechanism for fixing a first welded part and a second fixing mechanism for fixing a second welded part. The first fixing mechanism and the second fixing mechanism are detachably connected to the base, and the axes of the first fixing mechanism and the second fixing mechanism intersect. Both the first fixing mechanism and the second fixing mechanism include a support component, a limiting component, and a clamping component for cooperating with the support component to clamp the welded part.

[0006] Furthermore, the base includes a base fixing plate and a base mounting plate rotatably connected to the base fixing plate, and the top of the base mounting plate is provided with mounting holes for connection with the first fixing mechanism and the second fixing mechanism.

[0007] Furthermore, the first fixing mechanism includes a plurality of support components distributed along a straight line. Each support component includes a single support frame, a first height adjusting plate connected to the single support frame, and two symmetrical first width adjusting plates connected to the first height adjusting plate. The two symmetrical first width adjusting plates form an upward U-shaped structure.

[0008] Furthermore, at least one of the support components is provided with a clamping component, the clamping component including a first quick-clamp mounting plate connected to the support component, a first quick-clamp mechanism hinged to the upper end of the first quick-clamp mounting plate, a first upper positioning rod provided on the first quick-clamp mechanism, the first upper positioning rod being able to rotate with the first quick-clamp mechanism to above the U-shaped structure and clamp the welded part placed in the U-shaped structure.

[0009] Furthermore, the limiting component is disposed on the outside of the support component located at one end of the first fixing mechanism, and includes a first limiting support connected to the support component, on which a first limiting plate is connected.

[0010] Furthermore, the support assembly includes a double support frame, on which two spaced-apart second height adjustment plates are connected. Each second height adjustment plate is connected to two symmetrical second width adjustment plates, and the two symmetrical second width adjustment plates form an upward U-shaped structure.

[0011] Furthermore, the clamping assembly includes a clamping bracket connected to the base. A second quick-clamping mechanism is hinged to the upper end of the clamping bracket. The second quick-clamping mechanism is provided with a second upper positioning rod. The second upper positioning rod has a fork-shaped structure and can rotate with the second quick-clamping mechanism to the top of the U-shaped structure, and clamp the welded part placed in the U-shaped structure.

[0012] Furthermore, the limiting component is disposed at one end of the second fixing mechanism, including a limiting bracket connected to the base, and a positioning bracket plate and a second limiting plate are connected to the limiting bracket.

[0013] Furthermore, the support assembly is provided with a detachable positioning tray on top.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The welding fixture of this utility model achieves rapid positioning of the workpiece through the first fixing mechanism and the second fixing mechanism, which effectively prevents the workpiece from moving during the welding process. This not only improves work efficiency, but also ensures the stability and accuracy of the welding process, thereby ensuring the welding quality of the workpiece.

[0016] 2. The welding fixture of this utility model improves its applicability through the combination of support components, allowing for easy adjustment of its position, height, and width to accommodate welded parts of various shapes and sizes. This improves production efficiency and welding quality while reducing costs and saving space in the production workshop. Attached Figure Description

[0017] Figure 1This is a structural schematic diagram of the welding fixture of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the welding fixture of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the welding fixture of this utility model;

[0020] Figure 4 yes Figure 3 A partial schematic diagram of A;

[0021] Figure 5 yes Figure 3 A partial schematic diagram of B;

[0022] In the picture:

[0023] 1. Base; 11. Base fixing plate; 12. Base mounting plate; 21. Single support frame; 22. First height adjustment plate; 23. First width adjustment plate; 31. First quick clamp mounting plate; 32. First quick clamp mechanism; 33. First upper positioning rod; 34. First adjusting block; 41. First limit support; 42. First limit plate; 51. Double support frame; 52. Second height adjustment plate; 53. Second width adjustment plate; 61. Clamping bracket; 62. Second quick clamp mechanism; 63. Second upper positioning rod; 64. Clamping bracket base plate; 65. Second adjusting block; 71. Limit bracket; 72. Positioning bracket support plate; 73. Second frame limit plate; 74. Limit bracket base plate; 8. Positioning support plate; 9. Quick positioning pin. Detailed Implementation

[0024] To facilitate understanding of this utility model, the technical solutions of the embodiments 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, and 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 protection scope of this utility model.

[0025] The present invention will now be described in detail. In the following paragraphs, different aspects of the embodiments are defined in more detail. These aspects may be combined with any other aspect or aspects unless explicitly stated otherwise. In particular, any feature considered preferred or advantageous may be combined with one or more other features considered preferred or advantageous.

[0026] In the description of this utility model, it should be understood that the terms "inner", "outer", "upper", "lower", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0027] refer to Figures 1 to 3 As shown, this utility model discloses a welding fixing fixture, including a base 1 and a first fixing mechanism for fixing a first welded part and a second fixing mechanism for fixing a second welded part. The first fixing mechanism and the second fixing mechanism are detachably connected to the base 1, and the axes of the first fixing mechanism and the second fixing mechanism intersect. Both the first fixing mechanism and the second fixing mechanism include a support component, a limiting component, and a clamping component for cooperating with the support component to clamp the welded part.

[0028] Specifically, the base 1 includes a base fixing plate 11 and a base mounting plate 12 rotatably connected to the base fixing plate 11. The top of the base mounting plate 12 has mounting holes for connecting to the first fixing mechanism and the second fixing mechanism, and the mounting holes are arranged in a matrix. The bottoms of the first fixing mechanism and the second fixing mechanism are connected to the base mounting plate 12 via quick-locating pins 9. By adjusting the correspondence between the bottoms of the first fixing mechanism and the mounting holes on the base mounting plate 12, the positions of the bottoms of the first fixing mechanism and the second fixing mechanism on the base mounting plate 12 can be changed. The rotating structure of the base 1 can reduce unnecessary movement and transfer, and improve work efficiency.

[0029] In some embodiments, the first fixing mechanism includes a plurality of support components distributed along a straight line, preferably, the number of support components is three. The support components include a single support frame 21, a first height adjusting plate 22 connected to the single support frame 21, and two symmetrical first width adjusting plates 23 connected to the first height adjusting plate 22, the two symmetrical first width adjusting plates 23 forming an upward U-shaped structure.

[0030] The first height adjusting plate 22 has multiple sets of longitudinally arranged adjusting holes, and the single support frame 21 has at least two sets of connecting holes corresponding to the adjusting holes on the first height adjusting plate 22. The first height adjusting plate 22 is connected to the single support frame 21 via quick-locating pins 9. The installation height of the first height adjusting plate 22 can be adjusted by changing the correspondence between the adjusting holes on the first height adjusting plate 22 and the connecting holes on the single support frame 21.

[0031] Furthermore, the first width adjusting plate 23 has an L-shaped structure and multiple sets of horizontally arranged adjusting holes. The single support frame 21 has at least one set of connecting holes corresponding to the adjusting holes on the first width adjusting plate 23. The first width adjusting plate 23 is connected to the single support frame 21 via quick-locating pins 9. The distance between the two first width adjusting plates 23 can be adjusted by changing the correspondence between the adjusting holes on the first width adjusting plate 23 and the connecting holes on the single support frame 21.

[0032] The combination of support components improves the applicability of the fixture, allowing for easy adjustment of its position, height, and width to accommodate welded parts of various shapes and sizes. This increases production efficiency and welding quality while reducing costs and saving space in the production workshop.

[0033] refer to Figure 4 As shown, at least one support component is provided with a clamping component, preferably, both support components at both ends are provided with clamping components. The clamping component includes a first quick-clamp mounting plate 31 connected to the support component. A first quick-clamp mechanism 32 is hinged to the upper end of the first quick-clamp mounting plate 31. A first upper positioning rod 33 is provided on the first quick-clamp mechanism 32. A detachable first adjusting block 34 is connected to the bottom of the first upper positioning rod 33. The first upper positioning rod 33 can rotate with the first quick-clamp mechanism 32 to the top of the U-shaped structure and clamp the welded part placed in the U-shaped structure.

[0034] There are several possible configurations for the first quick-clamping mechanism 32. For example, the first quick-clamping mechanism 32 includes a handle, a linkage mechanism, and a clamping arm connected to the first upper positioning rod 33. The operating handle transmits and amplifies the force through the linkage mechanism, causing the clamping arm to drive the first upper positioning rod 33 to perform a clamping action. When the linkage mechanism is in the dead position, the first upper positioning rod 33 can firmly clamp the workpiece being welded.

[0035] In some embodiments, the limiting component is disposed on the outside of the support component located at one end of the first fixing mechanism, including a first limiting support 41 connected to the support component, and a first limiting plate 42 connected to the first limiting support 41.

[0036] In some embodiments, the second fixing mechanism includes a support assembly, which includes a double support frame 51. The double support frame 51 is a T-shaped rectangular tube structure, and its bottom is fixed to the base mounting plate 12 via a double support frame base plate. Two spaced-apart second height adjustment plates 52 are connected to the double support frame 51, and two symmetrical second width adjustment plates 53 are connected to each second height adjustment plate 52. The two symmetrical second width adjustment plates 53 form an upward U-shaped structure.

[0037] The second height adjusting plate 52 has multiple sets of longitudinally arranged adjusting holes, and the double support frame 51 has at least two sets of connecting holes corresponding to the adjusting holes on the second height adjusting plate 52. The second height adjusting plate 52 is connected to the double support frame 51 via quick-locating pins 9. The installation height of the second height adjusting plate 52 can be adjusted by changing the correspondence between the adjusting holes on the second height adjusting plate 52 and the connecting holes on the double support frame 51.

[0038] Furthermore, the second width adjusting plate 53 has an L-shaped structure and multiple sets of horizontally arranged adjusting holes. The double support frame 51 has at least one set of connecting holes corresponding to the adjusting holes on the second width adjusting plate 53. The second width adjusting plate 53 is connected to the double support frame 51 via quick-locating pins 9. The distance between the two second width adjusting plates 53 can be adjusted by changing the correspondence between the adjusting holes on the second width adjusting plate 53 and the connecting holes on the double support frame 51.

[0039] refer to Figure 5 As shown, the clamping assembly includes a clamping bracket 61 connected to the base 1, with the bottom of the clamping bracket 61 fixed to the base 1 via a clamping bracket base plate 64. A second quick-clamping mechanism 62 is hinged to the upper end of the clamping bracket 61. The second quick-clamping mechanism 62 has a second upper positioning rod 63, which is a fork-shaped structure. A second adjusting block 65 is provided at the corresponding support component location of the second upper positioning rod 63. The second upper positioning rod 63 can rotate with the second quick-clamping mechanism 62 to the top of the U-shaped structure, clamping the workpiece placed in the U-shaped structure.

[0040] In some embodiments, a limiting component is disposed at one end of the second fixing mechanism, including a limiting bracket 71 connected to the base 1, the limiting bracket 71 being fixed to the base 1 by a limiting bracket base plate 74. A positioning bracket support plate 72 and a second limiting plate 73 are connected to the limiting bracket 71.

[0041] In some embodiments, the support assembly is provided with a removable positioning tray 8 on top.

[0042] During welding, the longitudinal beam is first placed on the support assembly of the first fixing mechanism, with one end pressed against the limiting assembly of the first fixing mechanism; then the transverse beam is placed on the support assembly of the second fixing mechanism, with one end pressed against the limiting assembly of the second fixing mechanism. The workpiece is then clamped by the corresponding clamping assemblies of the first and second fixing mechanisms, achieving rapid workpiece positioning. This effectively prevents workpiece movement during welding, improving work efficiency and ensuring stability and accuracy during the welding process, thereby guaranteeing the welding quality of the workpiece.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding fixture, characterized by, The welding device comprises a base (1) and a first fixing mechanism for fixing a first welding piece and a second fixing mechanism for fixing a second welding piece, wherein the first fixing mechanism and the second fixing mechanism are detachably connected to the base (1), and the axes of the first fixing mechanism and the second fixing mechanism intersect, and the first fixing mechanism and the second fixing mechanism each comprise a supporting assembly, a limiting assembly and a clamping assembly for cooperating with the supporting assembly to clamp the welding piece.

2. The welding fixture of claim 1, wherein The base (1) comprises a base fixing plate (11) and a base mounting plate (12) rotatably connected to the base fixing plate (11), and the top of the base mounting plate (12) is provided with mounting holes connected with the first fixing mechanism and the second fixing mechanism.

3. The welding fixture of claim 1, wherein The first fixing mechanism comprises a plurality of supporting assemblies distributed in a straight line, and each supporting assembly comprises a single supporting frame (21), a first height adjusting plate (22) connected to the single supporting frame (21) and two symmetrical first width adjusting plates (23) connected to the first height adjusting plate (22), and the two symmetrical first width adjusting plates (23) form an upward U-shaped structure.

4. The welding fixture of claim 3, wherein, At least one supporting assembly is provided with a clamping assembly, and the clamping assembly comprises a first quick clamping mounting plate (31) connected to the supporting assembly, a first quick clamping mechanism (32) hinged to the upper end of the first quick clamping mounting plate (31), a first upper positioning rod (33) provided on the first quick clamping mechanism (32), and the first upper positioning rod (33) can rotate above the U-shaped structure with the first quick clamping mechanism (32) and clamp the welding piece placed in the U-shaped structure.

5. The welding fixture of claim 3, wherein, The limiting assembly is arranged outside the supporting assembly at one end of the first fixing mechanism and comprises a first limiting support (41) connected to the supporting assembly, and a first limiting plate (42) connected to the first limiting support (41).

6. The welding fixture of claim 1, wherein The supporting assembly comprises a double supporting frame (51), two second height adjusting plates (52) are connected to the double supporting frame (51), two symmetrical second width adjusting plates (53) are connected to each second height adjusting plate (52), and the two symmetrical second width adjusting plates (53) form an upward U-shaped structure.

7. The welding fixture of claim 6, wherein, The clamping assembly comprises a clamping bracket (61) connected to the base (1), a second quick clamping mechanism (62) hinged to the upper end of the clamping bracket (61), a second upper positioning rod (63) provided on the second quick clamping mechanism (62), and the second upper positioning rod (63) is a fork-shaped structure, which can rotate above the U-shaped structure with the second quick clamping mechanism (62) and clamp the welding piece placed in the U-shaped structure.

8. The welding fixture of claim 6, wherein, The limiting assembly is arranged at one end of the second fixing mechanism and comprises a limiting bracket (71) connected to the base (1), a positioning frame supporting plate (72) and a second frame limiting plate (73) connected to the limiting bracket (71).

9. The welding fixture of claim 4 or 7, wherein, The top of the supporting assembly is provided with a detachable positioning supporting plate (8).