Excavator accessory welding and assembling tool

By introducing slide rails and multi-cylinder components into the excavator welding fixture, multi-degree-of-freedom adjustment and three-dimensional positioning are achieved, solving the problem of poor versatility of existing fixtures, improving welding accuracy and stability, and adapting to the welding needs of excavator parts of different specifications.

CN223960787UActive Publication Date: 2026-03-03JINING HAILONG MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The existing excavator welding fixtures have poor versatility and are difficult to adapt to the welding requirements of excavator parts of different specifications. The positioning and clamping methods are limited and lack multi-degree-of-freedom adjustment functions, resulting in positioning deviations and welding deformation problems.

Method used

It employs a load-bearing mechanism and an installation mechanism, including components such as slide rails, adjusting cylinders, abutting cylinders, and pushing cylinders, to achieve multi-degree-of-freedom adjustment and three-dimensional positioning. Combined with a pneumatic clamping system, it ensures uniform and stable clamping force.

Benefits of technology

It achieves efficient positioning and stable clamping of excavator parts of different specifications, improves welding accuracy and stability, adapts to workpieces of various lengths, is easy to operate, and is suitable for flexible production.

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Abstract

The utility model provides an excavator accessory welding and assembling tool, which belongs to the technical field of engineering machinery manufacturing, and comprises a bearing mechanism, a bottom plate, a fixed seat fixedly arranged on the side wall of the bottom plate, a support frame fixedly arranged on the top of the bottom plate, a distribution box fixedly arranged on the inner wall of the support frame, and an air pump fixedly arranged on the side wall of the support frame, and the mounting mechanism comprises a mounting plate fixedly mounted on the side wall of the supporting frame, a mounting hole formed in the side wall of the mounting plate, a console adaptively mounted on the side wall of the mounting plate, a fixing assembly arranged on the side wall of the mounting plate, and an auxiliary assembly arranged on the surface of the mounting plate. Through the arrangement of the fixing assemblies and the auxiliary assemblies, efficient positioning and stable clamping of excavator accessories of different specifications are achieved, three-dimensional positioning is achieved through the cooperation of the four sets of fixing assemblies capable of being independently adjusted and the multiple air cylinders, and the workpiece positioning precision is improved; the combined structure of the sliding rail and the sliding seat enables the tool to adapt to accessories with various lengths.
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Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery manufacturing technology, specifically relating to a welding assembly tooling for excavator parts. Background Technology

[0002] Welding fixtures are process equipment used to fix, position, and clamp workpieces to assist welding operations. Their background technology originated from the increased requirements for welding efficiency and quality in industrial production in the early 20th century. Early welding fixtures were mostly simple clamps or manual positioning devices, relying on the operator's experience to ensure accuracy. As the manufacturing industry developed towards automation and precision, welding fixtures gradually evolved into modular and adjustable structures, and introduced pneumatic, hydraulic, or electric clamping technologies.

[0003] Application No. 201320850529.3 discloses a welding boom assembly fixture for excavators. The utility model discloses a welding boom assembly fixture for excavators, comprising a pair of support seats, each support seat having a bearing seat mounted on it, and each bearing seat having a rotating shaft mounted on it. Any one of the rotating shafts on the bearing seat is connected to a shaft of a motor with a speed reducer. A working platform is fixedly mounted on the rotating shaft between the two bearing seats. Several pads are fixedly mounted on the upper and lower surfaces of the middle part of the working platform. At least two pairs of positioning supports are mounted on the upper and lower surfaces of the front and rear ends of the working platform. A positioning pressure plate is movably mounted on the upper part of each pair of positioning supports. Using this structure, the welding is stable, standardized, uniform, and with small errors, while also improving strength, rigidity, and precision.

[0004] Although the aforementioned documents achieve smooth assembly and positioning of the welding boom, the tooling structure is mainly designed for specific boom models, with poor versatility. It is difficult to adapt to the welding needs of excavator parts of different specifications. The positioning and clamping methods are relatively simple and lack multi-degree-of-freedom adjustment functions. Positioning deviations may occur when dealing with complex structural parts or high-precision welding. Utility Model Content

[0005] The purpose of this utility model is to provide a welding assembly tooling for excavator parts, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A welding assembly tooling for excavator parts, comprising,

[0008] The load-bearing mechanism includes a base plate, a fixed seat fixedly installed on the side wall of the base plate, a support frame fixedly installed on the top of the base plate, an electrical distribution box fixedly installed on the inner wall of the support frame, and an air pump fixedly installed on the side wall of the support frame.

[0009] The mounting mechanism includes a mounting plate fixedly mounted on the side wall of the support frame, mounting holes provided on the side wall of the mounting plate, a control console adapted to be mounted on the side wall of the mounting plate, a fixing component provided on the side wall of the mounting plate, and auxiliary components provided on the surface of the mounting plate.

[0010] As a preferred embodiment of this utility model, the fixing assembly includes a slide rail fixedly installed on the side wall of the mounting plate, an adjusting cylinder fixedly installed on the side wall of the slide rail, and a slide block fixedly installed on the end of the adjusting cylinder.

[0011] As a preferred embodiment of the present invention, the fixing assembly further includes an auxiliary seat disposed on the side wall of the mounting plate, and an abutting cylinder adapted to be installed on the side wall of the auxiliary seat.

[0012] As a preferred embodiment of the present invention, the fixing assembly further includes a connector fixedly installed at the end of the abutting cylinder, and an abutting rod fixedly installed on the inner wall of the connector.

[0013] As a preferred embodiment of this utility model, the auxiliary component includes a connecting block fixedly installed on the side wall of the mounting plate, and a pushing cylinder fixedly installed on the side wall of the connecting block.

[0014] As a preferred embodiment of the present invention, the auxiliary component further includes a push rod fixedly installed at the end of the push cylinder, and a push plate fixedly installed at the end of the push rod.

[0015] As a preferred embodiment of the present invention, the auxiliary component further includes a fixing cylinder fixedly installed on the side wall of the mounting plate, and a stop block fixedly installed on the end of the fixing cylinder.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: through the setting of fixed components and auxiliary components, efficient positioning and stable clamping of excavator parts of different specifications are achieved; four sets of independently adjustable fixed components, together with multiple cylinders, realize three-dimensional positioning and improve the positioning accuracy of the workpiece; the combination structure of slide rail and slide block allows the tooling to adapt to parts of various lengths; the pneumatic clamping system has a fast response and uniform clamping force, effectively avoiding welding deformation problems; the device is easy to operate, quick to change, and has good stability, making it particularly suitable for the flexible production needs of excavator structural parts. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the connection between the base plate and the fixing seat of this utility model;

[0020] Figure 3 This is a schematic diagram showing the connection between the slide rail and the adjusting cylinder of this utility model;

[0021] Figure 4 This is a schematic diagram showing the connection between the connecting rod and the push cylinder of this utility model.

[0022] In the diagram: 100, bearing mechanism; 101, base plate; 102, fixed seat; 103, support frame; 104, distribution box; 105, air pump; 200, mounting mechanism; 201, mounting plate; 202, mounting hole; 203, control console; 204, fixing component; 204a, slide rail; 204b, adjusting cylinder; 204c, slide block; 204d, auxiliary seat; 204e, abutting cylinder; 204f, connector; 204g, abutting rod; 205, auxiliary component; 205a, connecting block; 205b, pushing cylinder; 205c, pushing rod; 205d, push plate; 205e, fixed cylinder; 205f, abutting block. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example

[0027] Reference Figures 1-4 This is an embodiment of the present invention, which provides a welding assembly tooling for excavator parts, including,

[0028] The support mechanism 100 includes a base plate 101, a fixed seat 102 fixedly installed on the side wall of the base plate 101, a support frame 103 fixedly installed on the top of the base plate 101, an electrical distribution box 104 fixedly installed on the inner wall of the support frame 103, and an air pump 105 fixedly installed on the side wall of the support frame 103.

[0029] The mounting mechanism 200 includes a mounting plate 201 fixedly mounted on the side wall of the support frame 103, a mounting hole 202 provided on the side wall of the mounting plate 201, a control console 203 adapted to be mounted on the side wall of the mounting plate 201, a fixing component 204 provided on the side wall of the mounting plate 201, and an auxiliary component 205 provided on the surface of the mounting plate 201.

[0030] Specifically, the fixing component 204 includes a slide rail 204a fixedly installed on the side wall of the mounting plate 201, an adjusting cylinder 204b fixedly installed on the side wall of the slide rail 204a, and a slide block 204c fixedly installed on the end of the adjusting cylinder 204b. The fixing component 204 also includes an auxiliary seat 204d disposed on the side wall of the mounting plate 201, and an abutting cylinder 204e adapted to be installed on the side wall of the auxiliary seat 204d. The fixing component 204 also includes a connector 204f fixedly installed on the end of the abutting cylinder 204e, and an abutting rod 204g fixedly installed on the inner wall of the connector 204f.

[0031] Furthermore, four sets of fixing components 204 are provided, symmetrically arranged at both ends of the top of the mounting plate 201. The slide block 204c is slidably connected to the inner wall of the slide rail 204a, and the side wall of the connector 204f is fixedly connected to the side wall of the auxiliary seat 204d. When the abutment cylinder 204e extends or retracts, it drives the abutment rod 204g to move up and down.

[0032] Preferably, the auxiliary component 205 includes a connecting block 205a fixedly installed on the side wall of the mounting plate 201, and a push cylinder 205b fixedly installed on the side wall of the connecting block 205a. The auxiliary component 205 also includes a push rod 205c fixedly installed on the end of the push cylinder 205b, and a push plate 205d fixedly installed on the end of the push rod 205c. The auxiliary component 205 also includes a fixing cylinder 205e fixedly installed on the side wall of the mounting plate 201, and a stop block 205f fixedly installed on the end of the fixing cylinder 205e.

[0033] It should be noted that there are four sets of auxiliary components 205, which are placed opposite the fixing components 204, so that the auxiliary components 205 can further fix the workpiece on the fixing components 204.

[0034] In use, adjusting the extension and retraction of the cylinder moves the slide 204c, which controls the distance between the two sides to accommodate parts of different lengths. The extension and retraction of the abutment cylinder 204e moves the bottom of the connector 204f. The connector 204f, in conjunction with the auxiliary seat 204d, moves the abutment rod 204g up and down. When the abutment rod 204g moves downward, it presses against the workpiece, fixing it in place. The cylinder 205b is then pushed, causing the push rod to move back and forth. The push rod then moves the push plate 205d back and forth. When the cylinder 205b extends to its maximum length, the push plate 205d presses the workpiece against the slide 204c, fixing the extension of the cylinder. This causes the abutment block 205f to move forward, pressing against the end of the workpiece and completely fixing it in place, thus enabling welding.

[0035] In summary, the fixed component 204 and the auxiliary component 205 work together to achieve rapid positioning and stable clamping of workpieces of different sizes. The four symmetrically arranged fixed components 204, together with the adjustable slide block 204c structure, effectively solve the problem of poor adaptability of traditional tooling. The multi-cylinder linkage system achieves precise positioning of the workpiece in three dimensions. The combined clamping method of the push plate 205d and the stop block 205f ensures stability during the welding process. The device features high positioning accuracy, wide applicability, and simple operation, which improves the assembly efficiency and welding quality of excavator parts welding, and is particularly suitable for welding operations in mass production.

[0036] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0037] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0038] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A work tool welding set-up fixture for excavators, characterized by: Comprising, The bearing mechanism (100) comprises a bottom plate (101), a fixed seat (102) fixedly installed on the side wall of the bottom plate (101), a support frame (103) fixedly installed on the top of the bottom plate (101), a distribution box (104) fixedly installed on the inner wall of the support frame (103), and an air pump (105) fixedly installed on the side wall of the support frame (103); The mounting mechanism (200) comprises a mounting plate (201) fixedly installed on the side wall of the support frame (103), a mounting hole (202) arranged on the side wall of the mounting plate (201), a control console (203) adaptively installed on the side wall of the mounting plate (201), a fixed assembly (204) arranged on the side wall of the mounting plate (201), and an auxiliary assembly (205) arranged on the surface of the mounting plate (201).

2. A work tool welding set-up fixture for an excavator according to claim 1, characterized in that: The fixed assembly (204) comprises a sliding rail (204a) fixedly installed on the side wall of the mounting plate (201), an adjusting air cylinder (204b) fixedly installed on the side wall of the sliding rail (204a), and a sliding seat (204c) fixedly installed on the end of the adjusting air cylinder (204b).

3. A work tool welding set-up fixture for an excavator according to claim 2, characterized in that: The fixed assembly (204) further comprises an auxiliary seat (204d) arranged on the side wall of the mounting plate (201), and a resisting air cylinder (204e) adaptively installed on the side wall of the auxiliary seat (204d).

4. A work tool welding set-up fixture for an excavator according to claim 3, characterized in that: The fixed assembly (204) further comprises a connector (204f) fixedly installed on the end of the resisting air cylinder (204e), and a resisting rod (204g) fixedly installed on the inner wall of the connector (204f).

5. A work tool welding set-up fixture for an excavator according to claim 4, characterized in that: The auxiliary assembly (205) comprises a connecting block (205a) fixedly installed on the side wall of the mounting plate (201), and a pushing air cylinder (205b) fixedly installed on the side wall of the connecting block (205a).

6. A work tool welding set-up fixture for an excavator according to claim 5, characterized in that: The auxiliary assembly (205) further comprises a pushing rod (205c) fixedly installed on the end of the pushing air cylinder (205b), and a pushing plate (205d) fixedly installed on the end of the pushing rod (205c).

7. A work tool welding set-up fixture for an excavator according to claim 6, characterized in that: The auxiliary assembly (205) further comprises a fixed air cylinder (205e) fixedly installed on the side wall of the mounting plate (201), and a resisting block (205f) fixedly installed on the end of the fixed air cylinder (205e).

Citation Information

Patent Citations

  • Assembling tool for welding movable arms of excavators

    CN203649740U