Bulldozer air inlet grille welding tool

Abstract

The utility model relates to the technical field of machining, in particular to a bulldozer air inlet grille welding tool which comprises a basic surface plate, a bottom reinforcing square pipe, a positioning cylindrical pin, a grille positioning plate, a rear positioning supporting plate, a grille rotating positioning shaft and a front positioning supporting plate. Parts of the bulldozer air inlet grille welding tool are combined on the tool through bolts, and welding deformation is effectively controlled. After use, the welding qualified rate of the parts is greatly improved, and the welding position and the size after forming of each welding unit can be effectively limited. The welding skill threshold of welding personnel is lowered, and the tool can be placed on a welding robot workbench to achieve batch machining.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, and particularly relates to a welding tooling for a bulldozer intake grille. Background Art

[0002] The bulldozer intake grille is an important part of a bulldozer. The intake grille has a blocking effect like a fence, which can prevent sundries such as stones and branches on the road from entering the engine compartment and reduce the risk of physical impact. At the same time, its hollow design also ensures the dredging of air, ensuring that the engine can work and dissipate heat normally.

[0003] Due to the complex structure of the bulldozer intake grille, the difficulty of welding is high, and the tolerance requirements are extremely strict. In order to improve the product accuracy and ensure the first-pass rate of the product, a welding tooling for a bulldozer intake grille is developed. Content of the Utility Model

[0004] The utility model provides a welding tooling for a bulldozer intake grille to solve the problems of complex structure and high welding difficulty of the bulldozer intake grille.

[0005] The utility model provides a welding tooling for a bulldozer intake grille, which includes a basic flat plate, a bottom reinforcing square tube, a positioning cylindrical pin, a grille positioning plate, a rear positioning support plate, a grille rotating positioning shaft, and a front positioning support plate;

[0006] The basic flat plate is installed on the top of the bottom reinforcing square tube, the grille positioning plate is installed on the top of the basic flat plate, one side of the grille positioning plate is connected to the front positioning support plate through the positioning cylindrical pin, the rear positioning support plate is installed on the other side of the grille positioning plate, and the grille rotating positioning shaft is installed on the side of the rear positioning support plate where it is located on the grille positioning plate.

[0007] Further, the middle part of the grille positioning plate is serrated.

[0008] Further, both ends of the front positioning support plate are connected to the grille positioning plate, and a front positioning support plate clamping plate is installed on the side wall of the grille positioning plate.

[0009] Further, a rectangular clamping plate is clamped on the side of the grille positioning plate where it is connected to the rear positioning support plate and the grille rotating positioning shaft.

[0010] The beneficial effects of the present utility model are as follows: A welding tooling for the intake grille of a bulldozer provided by the present utility model uses bolts to fasten the components of the welding tooling for the intake grille of the bulldozer on the tooling, effectively controlling welding deformation. After use, the welding qualification rate of such components is greatly improved, and the welding positions of each welding unit and the dimensions after forming can be effectively restricted. It reduces the welding skill threshold for welders, and this tooling can also be placed on the workbench of a welding robot to achieve batch processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 FIG. is a schematic exploded view of the three-dimensional angle structure of a welding tooling for the intake grille of a bulldozer provided by the present utility model.

[0013] Figure 2 FIG. is a schematic top view structure diagram of a welding tooling for the intake grille of a bulldozer provided by the present utility model.

[0014] Figure 3 FIG. is a schematic first side view structure diagram of a welding tooling for the intake grille of a bulldozer provided by the present utility model.

[0015] Figure 4 FIG. is a schematic second side view structure diagram of a welding tooling for the intake grille of a bulldozer provided by the present utility model.

[0016] Figure 5 FIG. is a schematic diagram of a welding tooling for the intake grille of a bulldozer provided by the present utility model in the use state.

[0017] Illustration: 1 - Basic flat plate; 2 - Bottom strengthening square tube; 3 - Positioning cylindrical pin; 4 - Grille positioning plate; 5 - Rear positioning support plate; 6 - Grille rotating positioning shaft; 7 - Front positioning support plate, 8 - Intake grille of the bulldozer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Please refer to Figures 1 to 5 , an embodiment of the present utility model provides a welding tooling for the intake grille of a bulldozer, including a basic flat plate 1, a bottom strengthening square tube 2, a positioning cylindrical pin 3, a grille positioning plate 4, a rear positioning support plate 5, a grille rotating positioning shaft 6, and a front positioning support plate 7;

[0019] The top of the bottom reinforcing square tube 2 is provided with the base plane plate 1, the top of the base plane plate 1 is provided with the grille positioning plate 4, one side of the grille positioning plate 4 is connected to the front positioning support plate 7 through the positioning cylindrical pin 3, the other side of the grille positioning plate 4 is provided with the rear positioning support plate 5, and the rear positioning support plate 5 is provided with the grille rotation positioning shaft 6 on the side where the grille positioning plate 4 is located.

[0020] Specifically, the middle part of the grille positioning plate 4 is serrated. Both ends of the front positioning support plate 7 are connected to the grille positioning plate 4, and a front positioning support plate clamping plate is installed on the side wall of the grille positioning plate 4. The grille positioning plate 4 is clamped with a rectangular clamping plate on the side where the rear positioning support plate 5 is connected to the grille rotation positioning shaft 6.

[0021] Object of the invention: When manufacturing sheet metal components, the geometric tolerances of the intake grille of such bulldozers are required to be strict, the welding strength requirements are high, the welding volume is large, and it is easy to cause welding deformation. The method of manual direct welding is extremely difficult to ensure geometric tolerances and cannot control welding deformation. The product qualification rate is low. The purpose of this project is to develop a welding fixture suitable for this product to improve the product qualification rate and work efficiency.

[0022] The fixture of the technical solution of this application is attached to the three-dimensional model of the intake grille of the bulldozer. Using the profiling process, a welding fixture is simulated and designed to accurately ensure the welding dimensions, flatness, perpendicularity, position tolerance, etc. of the components. The components are clamped to the fixture with bolts to effectively control welding deformation. After use, the welding qualification rate of such components is greatly improved, and the welding position and the size after forming of each welding unit can be effectively restricted. The welding skill threshold of welders is reduced, and this fixture can also be placed on the welding robot workbench to realize batch processing.

[0023] When laser cutting a single piece, welding position lines and positioning slots are attached. The base plane plate 1, the bottom reinforcing square tube 2, the grille positioning plate 4, the rear positioning support plate 5, and the front positioning support plate 7 are assembled and manufactured through the slots and lines. After completion, the seams are welded by carbon dioxide gas shielded welding. Then, the two positioning parts, the positioning cylindrical pin 3 and the grille rotation positioning shaft 6, are welded to ensure that the overall dimensions of the fixture are qualified and reduce the deformation amount.

[0024] First, place the tooling on the welding platform to ensure the flatness of the tooling. During the welding process of the bulldozer intake grille 8, it is fixed with bolts through the mounting holes of the positioning cylindrical pin 3, grille positioning plate 4, rear positioning support plate 5, grille rotation positioning shaft 6, and front positioning support plate 7 to ensure the correct relative position dimensions of each part. The grille rotation positioning shaft 6 can simulate the movement trajectory of the finished component, check the problem points, and accurately ensure the welding dimensions, flatness, perpendicularity, position degree, etc. requirements of the component. Use bolts to fasten the components on the tooling to effectively control the welding deformation.

[0025] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A welding tooling for the intake grille of a bulldozer, characterized in that, It includes a base flat plate (1), a bottom reinforcing square pipe (2), a positioning cylindrical pin (3), a grille positioning plate (4), a rear positioning support plate (5), a grille rotating positioning shaft (6), and a front positioning support plate (7); The base flat plate (1) is installed on the top of the bottom reinforcing square pipe (2), the grille positioning plate (4) is installed on the top of the base flat plate (1), one side of the grille positioning plate (4) is connected to the front positioning support plate (7) through the positioning cylindrical pin (3), the rear positioning support plate (5) is installed on the other side of the grille positioning plate (4), and the grille rotating positioning shaft (6) is installed on the side of the rear positioning support plate (5) where it is located on the grille positioning plate (4).

2. The welding tooling for the intake grille of a bulldozer according to claim 1, characterized in that, The middle of the grille positioning plate (4) is serrated.

3. A welding tooling for the intake grille of a bulldozer according to claim 1, characterized in that, Both ends of the front positioning support plate (7) are connected to the grille positioning plate (4), and a front positioning support plate clamping plate is installed on the side wall of the grille positioning plate (4).

4. The welding tooling for the intake grille of a bulldozer according to claim 1, wherein A rectangular clamping plate is clamped on the side of the grille positioning plate (4) where it is connected to the rear positioning support plate (5) and the grille rotating positioning shaft (6).

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