Universal welding device for small-sized front frame robot

Abstract

The invention relates to a universal welding device for a small-sized front frame robot, and belongs to the technical field of tool clamps, the universal welding device comprises a welding platform, the front end of the welding platform is provided with a front positioning welding part and a front screw assembly, and the front screw assembly is provided with a screw body which penetrates through the welding platform and is connected with the front positioning welding part; the front-back position of the front positioning welding-on can be adjusted through the front screw assembly, a left positioning plate welding-on, a right positioning plate welding-on and a side screw assembly are arranged at the rear end of the welding platform, and the side screw assembly is provided with a screw body which penetrates through the welding platform and is connected with the left positioning plate welding-on and the right positioning plate welding-on. And the left positioning plate welding part and the right positioning plate welding part can synchronously and symmetrically move in opposite directions through the side screw rod assembly. According to the welding fixture, the front frame can be quickly and accurately positioned and clamped, the welding efficiency of the small-sized front frame is greatly improved, and meanwhile, the labor intensity of welding personnel is reduced.

Description

Technical Field

[0001] This invention belongs to the field of tooling and fixture technology, specifically a universal welding device for a small front frame robot. Background Technology

[0002] Currently, small loaders are widely used in my country, and there are many different models. The front frame of these small loaders is a key component, and its structural parameters vary depending on the model. Specifically, the vertical distance from the center of the front frame hinge shaft to the front frame mounting hole (used for mounting the front drive axle) is different for each model, and the center distance between the left and right mounting holes of the front frame also varies.

[0003] In actual production, welding the front frames of different aircraft models is a complex task. Due to differences in front frame structural parameters, current welding processes require changing the welding fixtures according to the specific aircraft model. This frequent fixture change not only consumes a significant amount of manpower and time but also severely impacts the overall efficiency of the welding work. Welders need to spend extra time and effort disassembling and installing the fixtures, which undoubtedly increases their labor intensity, reduces work efficiency, and to some extent affects the company's production benefits. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a universal welding fixture for small front frame robots, which can quickly and accurately position and clamp different front frames, improve the welding efficiency of small front frames, and at the same time reduce the labor intensity of welding personnel.

[0005] To achieve the above objectives, the present invention provides a universal welding device for a small front frame robot, including a welding platform. The front end of the welding platform is provided with a front positioning weld and a front screw assembly. The front screw assembly has a screw body that passes through the welding platform and connects to the front positioning weld. The front position of the front positioning weld can be adjusted by the front screw assembly. The rear end of the welding platform is provided with a left positioning plate weld, a right positioning plate weld, and a side screw assembly. The side screw assembly has a screw body that passes through the welding platform and connects to the left and right positioning plate welds. The left and right positioning plate welds can be moved synchronously and symmetrically in opposite directions by the side screw assembly.

[0006] Preferably, the left positioning plate welding and the right positioning plate welding are opposite each other and are each composed of two plate-shaped structures arranged horizontally and vertically, wherein the vertical plate-shaped structure is located at the bottom of the horizontal plate-shaped structure and is connected to the screw body of the side screw assembly.

[0007] Preferably, the transverse plate-like structures of the left positioning plate weld and the right positioning plate weld are respectively provided with positioning pins for positioning the left and right mounting holes of the front frame.

[0008] Preferably, the top of the front positioning weld is provided with a front support seat, and the bottom of the front support seat is provided with a threaded cylindrical structure that cooperates with the threaded hole on the top of the front positioning weld, so that vertical movement can be achieved by rotation.

[0009] Preferably, the front frame is positioned at three points by the cooperation of the left positioning plate welding, the right positioning plate welding, the positioning pin, the front positioning welding, and the front support seat. The front frame is then fixed to the left positioning plate welding and the right positioning plate welding by bolts, so that a robot can perform welding operations on the front frame.

[0010] Preferably, the screw body of the side screw assembly passes through threaded holes on the vertical plate-like structures of the left positioning plate weld and the right positioning plate weld, respectively, and the thread directions on the left positioning plate weld and the right positioning plate weld are opposite.

[0011] Preferably, the locating pin is cylindrical and has a smooth surface.

[0012] Preferably, the welding platform is provided with guide rails on the left and right sides of the front positioning weld, and grooves that can slide and cooperate with the guide rails are provided on the left and right sides of the front positioning weld.

[0013] In summary, the present invention has the following beneficial technical effects:

[0014] This invention's tooling fixture enables rapid and precise positioning and clamping of the front frame, effectively solving a series of problems caused by frequent tooling changes in traditional welding processes. Through its ingenious structural design and flexible adjustment mechanism, it significantly improves the overall efficiency of small-frame welding operations, achieving not only high-efficiency welding in terms of time but also optimizing the tooling's versatility in the production process, reducing the additional time and costs incurred due to tooling changes. Simultaneously, this tooling fixture plays a crucial role in reducing the labor intensity of welding personnel. Its convenient operation and stable clamping performance eliminate the need for frequent and arduous tooling changes and complex positioning operations, allowing welders to focus more intently on welding, thus improving welding quality, reducing the risk of welding defects caused by human fatigue, and further enhancing production stability and reliability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the universal welding fixture for the small front frame robot of the present invention; Figure 2This is a front view of the clamping schematic diagram of the universal welding fixture for the small front frame robot of the present invention; Figure 3 This is a top view schematic diagram of the universal welding fixture for the small front frame robot of the present invention.

[0016] Reference numerals: 1. Welding platform; 2. Left positioning plate welding; 3. Right positioning plate welding; 4. Side screw assembly; 5. Positioning pin; 6. Guide rail; 7. Front positioning welding; 8. Front support seat; 9. Front screw assembly. Detailed Implementation

[0017] 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. 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.

[0018] This invention discloses a universal welding device for a small front frame robot, the overall structure of which includes a welding platform 1, a left positioning plate welding 2, a right positioning plate welding 3, a side screw assembly 4, a positioning pin 5, a guide rail 6, a front positioning welding 7, a front support seat 8, and a front screw assembly 9.

[0019] Welding platform 1, as the basic component of the entire device, has a certain thickness and strength. Its rear upper surface is flat and has several threaded holes and mounting positions for assembling other components. Left positioning plate weld 2 and right positioning plate weld 3 are located at the rear end of welding platform 1, facing each other and assembled to the top of the rear end of welding platform 1 with bolts. Left positioning plate weld 2 and right positioning plate weld 3 have similar structures, each composed of two horizontally and vertically arranged plate structures. The vertical plate structure is located at the bottom of the horizontal plate structure and has threaded holes for connecting to the side screw assembly 4. The horizontal plate structure has mounting holes for assembling positioning pins 5. Two positioning pins 5 are respectively assembled on left positioning plate weld 2 and right positioning plate weld 3. Positioning pins 5 are cylindrical with smooth surfaces; their function is to accurately position the left and right mounting holes of the front frame, ensuring the accurate left and right position of the front frame during the welding process.

[0020] The side screw assembly 4 includes a screw body and matching nuts and other components. The screw body passes through threaded holes on two vertical plate-like structures, left positioning plate weld 2 and right positioning plate weld 3, respectively, and the threads on left positioning plate weld 2 and right positioning plate weld 3 are in opposite directions. When the side screw assembly 4 is rotated, it can drive left positioning plate weld 2 and right positioning plate weld 3 to move symmetrically in opposite directions simultaneously, thereby achieving adaptation to the center distance of the left and right mounting holes on the front frame of different models.

[0021] Four guide rails 6 are welded to the inner left and right sides of the front end of the welding platform 1. The guide rails 6 are elongated and have a certain degree of rigidity and guidance, and are used to cooperate with the front positioning weld 7. The left and right sides of the front positioning weld 7 are provided with two grooves that slide with the guide rails 6. The front positioning weld 7 is assembled on the guide rails 6 and can slide along the guide rails 6. At the same time, its front side is also provided with threaded holes for connecting with the front screw assembly 9. The front screw assembly 9 includes a screw body and corresponding components. One end of its assembly is connected to the front side of the front positioning weld 7. By rotating the front screw assembly 9, the front positioning weld 7 and the front support seat 8 can slide on the guide rails 6, thereby adjusting the front and rear position of the front support seat 8.

[0022] The front support seat 8 is assembled on top of the front positioning weld 7. The front support seat 8 is roughly shaped as a columnar structure with a supporting surface. Its bottom is also provided with a threaded columnar structure that mates with the threaded hole on the top of the front positioning weld 7. The front support seat 8 can move vertically up and down by rotating because the threads of the columnar structure at the bottom of the front support seat 8 move relative to the threads on the top of the front positioning weld 7.

[0023] The working principle is as follows when welding the small front frame: The locating pins 5 mounted on the left and right locating plate welds 2 and 3 are used to position the left and right mounting holes of the front frame, ensuring the accuracy of the front frame's left and right position. Simultaneously, the front support seat 8 mounted on the front locating weld 7 positions the front frame's hinge shaft, thus achieving three-point positioning of the front frame. After positioning, the front frame is fixed to the left and right locating plate welds 2 and 3 using bolts, after which a robot can be used to perform welding operations on the front frame.

[0024] When welding front frames for different models is required, this device can be flexibly adjusted to fit front frames of different sizes. The specific adjustment method is as follows: Rotating the side screw assembly 4, because the threads on the left positioning plate weld 2 and the right positioning plate weld 3 are in opposite directions, they will move symmetrically in opposite directions simultaneously, so that the center distance of the two positioning pins 5 assembled on the left and right positioning plate welds 2 and 3 is consistent with the center distance of the left and right mounting holes of the front frame. Next, rotating the front screw assembly 9 causes the front positioning weld 7 and the front support seat 8 to slide on the guide rail 6, thereby adjusting the front and rear position of the front support seat 8 so that the vertical distance from the center of the front support seat 8 to the two positioning pins 5 is consistent with the vertical distance from the center of the front frame hinge shaft to the front frame mounting hole.

[0025] Furthermore, by rotating the front support seat 8, the threads on it move relative to the threads on the front positioning weld 7, thereby achieving vertical movement of the front support seat 8. This adjusts the vertical distance from the upper surface of the front support seat 8 to the upper surfaces of the left positioning plate weld 2 and the right positioning plate weld 3, making it consistent with the vertical distance from the lower surface of the front frame hinge shaft to the lower surface of the front frame mounting hole.

[0026] By adjusting the left, right, front, back, and up / down directions and corresponding distances, this welding device can accurately position and reliably clamp the front frames of different models on the same tooling, greatly improving the welding efficiency of small front frames and effectively reducing the labor intensity of welding personnel. It has significant practical value and promotion potential.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A universal welding device for a small front frame robot, characterized in that, The welding platform (1) includes a front positioning weld (7) and a front screw assembly (9) at its front end. The front screw assembly (9) has a screw body that passes through the welding platform (1) and connects to the front positioning weld (7). The front position of the front positioning weld (7) can be adjusted by the front screw assembly (9). The welding platform (1) has a left positioning plate weld (2), a right positioning plate weld (3) and a side screw assembly (4) at its rear end. The side screw assembly (4) has a screw body that passes through the welding platform (1) and connects to the left positioning plate weld (2) and the right positioning plate weld (3). The left positioning plate weld (2) and the right positioning plate weld (3) can be moved symmetrically in opposite directions synchronously by the side screw assembly (4).

2. The universal welding device for a small pre-frame robot according to claim 1, characterized in that, The left positioning plate welding (2) and the right positioning plate welding (3) are opposite each other and are both composed of two plate-shaped structures arranged horizontally and vertically. The vertical plate-shaped structure is located at the bottom of the horizontal plate-shaped structure and is connected to the screw body of the side screw assembly (4).

3. The universal welding device for a small pre-frame robot according to claim 2, characterized in that, Positioning pins (5) are provided on the transverse plate structure of the left positioning plate weld (2) and the right positioning plate weld (3) respectively, for positioning the left and right mounting holes of the front frame.

4. The universal welding device for a small pre-frame robot according to claim 3, characterized in that, The front positioning weld (7) is provided with a front support seat (8) at the top. The bottom of the front support seat (8) is provided with a threaded cylindrical structure that cooperates with the threaded hole on the top of the front positioning weld (7). It can move vertically up and down by rotation.

5. The universal welding device for a small pre-frame robot according to claim 4, characterized in that, The three-point positioning of the front frame is achieved through the cooperation of the left positioning plate weld (2), the right positioning plate weld (3), the positioning pin (5), the front positioning weld (7) and the front support seat (8), and the front frame is fixed on the left positioning plate weld (2) and the right positioning plate weld (3) by bolts so that the robot can perform welding operations on the front frame.

6. A universal welding device for a small pre-frame robot according to any one of claims 2-5, characterized in that, The screw body of the side screw assembly (4) passes through the threaded holes on the vertical plate structure of the left positioning plate weld (2) and the right positioning plate weld (3), respectively, and the thread directions on the left positioning plate weld (2) and the right positioning plate weld (3) are opposite.

7. A universal welding device for a small pre-frame robot according to any one of claims 3-5, characterized in that, The positioning pin (5) is cylindrical and has a smooth surface.

8. A universal welding device for a small pre-frame robot according to any one of claims 1-5, characterized in that, The welding platform (1) is provided with guide rails (6) on the left and right sides of the front positioning weld (7), and the left and right sides of the front positioning weld (7) are provided with grooves that can slide and cooperate with the guide rails (6).

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