Land leveler dozer blade structural member overlap welding tool

Abstract

The utility model discloses a land leveler dozer blade structural member overlap welding tool which comprises a dozer blade assembly overlap welding tool used for positioning, clamping and fixing a dozer blade assembly and two side plates and a lug plate assembly positioning tool used for positioning a lug plate assembly on the dozer blade assembly. The lug plate assembly positioning tool is arranged on the dozer blade assembly overlap welding tool and comprises a fixing plate and lug plate opening gaskets, the lug plate opening gaskets are arranged on the two sides of the fixing plate and used for being inserted between two lug plates of a lug plate assembly, and the number of the lug plate opening gaskets can be adjusted. According to the overlap welding tool for the land leveler dozer blade structural part, the positioning size is pre-adjusted through the overlap welding size fine adjustment mechanism, overlap welding size pre-compensation can be achieved according to practical experience and welding deformation, it can be accurately guaranteed that the size after welding meets the drawing design requirement, it is avoided that due to poor size, the repair procedure is increased, and the product manufacturing cost is reduced; and the positioning accuracy of all parts of the dozer blade during lap welding is improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of welding tooling technology. Specifically, this utility model relates to a welding tooling for the structural components of a grader bulldozer blade. Background Technology

[0002] As a crucial structural component of graders, the bulldozer blade requires relatively high precision in its welding fixtures. Traditional welding fixtures, due to insufficient precision in design and manufacturing, often result in inaccurate positioning of the bulldozer blade components during welding, leading to deviations. Considering factors such as post-weld deformation, the post-weld dimensions may not meet design requirements, affecting the assembly accuracy and performance of the grader. Furthermore, traditional welding fixtures are cumbersome to install, with poor flexibility in clamping and adjusting the positioning devices. After prolonged use or frequent operation, the fixture itself is prone to deformation and loosening, further impacting its ability to secure and support the bulldozer blade components, reducing its reliability and lifespan, and increasing equipment maintenance and replacement costs. Additionally, frequent and cumbersome operation of the fixture increases the operator's workload, leading to fatigue, increasing the risk of operational errors and potential injuries.

[0003] Chinese Patent Application No. 201920725205.4 discloses a welding fixture for bulldozer blades, which solves the problem that when manufacturing bulldozer blades, the various parts are fixed manually. Before the parts are firmly welded, the personnel fixing the bulldozer blade cannot leave, leading to excessive use of manpower during welding, resulting in high manufacturing costs and low manufacturing efficiency. The fixture includes a base plate, a first connecting rod connected to one side of the base plate, a first support rod fixed to the top of the first connecting rod, a first clamping plate installed at the top of the first support rod, a second connecting rod welded to one end of the first clamping plate, and a second clamping plate fixed to the end of the second connecting rod away from the first clamping plate.

[0004] The aim is to provide an improved welding fixture for the structural components of a grader bulldozer blade, particularly regarding how to improve the positioning accuracy of the various parts of the bulldozer blade during welding. Utility Model Content

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model provides a welding fixture for the structural components of a grader bulldozer blade, with the purpose of improving the positioning accuracy of the various components of the bulldozer blade during welding.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a grader bulldozer blade structural component welding fixture, including a bulldozer blade assembly welding fixture for positioning and clamping the bulldozer blade assembly and two side plates, and an ear plate assembly positioning fixture for positioning the ear plate assembly on the bulldozer blade assembly. The ear plate assembly positioning fixture is set on the bulldozer blade assembly welding fixture. The ear plate assembly positioning fixture includes a fixing plate and ear plate opening shims set on both sides of the fixing plate for inserting between the two ear plates of the ear plate assembly. The number of ear plate opening shims is adjustable.

[0007] The ear plate opening washer is mounted on the fixed plate by bolts, and the ear plate opening washer is provided with through holes for the bolts to pass through.

[0008] The ear plate assembly positioning fixture also includes a positioning frame. The fixing plate is set on the positioning frame. There are four fixing plates arranged in two rows. A reinforcing rod is set between two fixing plates in the same row, and the reinforcing rod is connected to the two fixing plates.

[0009] The bulldozer blade assembly welding fixture includes a base frame and a first positioning backing, a second positioning backing, and a positioning mechanism mounted on the base frame. Multiple second positioning backings are provided and are configured to position the bulldozer blade assembly. A third positioning backing is provided on the second positioning backing and is configured to position the two side plates. The bulldozer blade assembly is located between the two side plates. The positioning mechanism is configured to position the ear plate assembly positioning fixture.

[0010] The positioning mechanism includes a positioning rod and a positioning pin disposed on the positioning rod.

[0011] Multiple positioning rods are provided.

[0012] The base frame is provided with a clamping mechanism for applying pressure to the side plate positioned by the third positioning backing, and the second positioning backing is located between the clamping mechanism and the first positioning backing.

[0013] The clamping mechanism includes a clamping bracket mounted on the base frame and a quick-change thrust clamp mounted on the clamping bracket.

[0014] The welding fixture for the structural components of a grader bulldozer blade of this utility model has a pre-adjustment positioning size through a micro-adjustment mechanism for welding size. It can pre-compensate the welding size based on practical experience and welding deformation, which can accurately ensure that the post-weld size meets the design requirements of the drawings, avoid rework due to poor size, reduce product manufacturing costs, improve the positioning accuracy of each component of the bulldozer blade during welding, and reduce the labor intensity of operators. Attached Figure Description

[0015] This manual includes the following figures, which illustrate the following:

[0016] Figure 1 This is a schematic diagram of the welding fixture for the structural components of the bulldozer blade of this utility model.

[0017] Figure 2 This is a schematic diagram showing the usage status of the welding fixture for the structural components of the grader bulldozer blade of this utility model;

[0018] The diagram is marked as follows:

[0019] 1. Base frame; 2. Positioning frame; 3. Fixing plate; 4. Ear plate assembly; 5. Ear plate opening gasket; 6. Reinforcing rod; 7. Bulldozer blade assembly; 8. First positioning pin; 9. Second positioning pin; 10. Clamping bracket; 12. Side plate; 13. Third positioning backing; 14. First positioning backing; 15. Bulldozer blade wear-resistant bending plate; 16. Second positioning backing; 17. Positioning rod; 18. Quick-change thrust clamp. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a welding fixture for the structural components of a grader bulldozer blade, including a welding fixture for positioning and clamping the bulldozer blade assembly 77 and the two side plates 12, and a positioning fixture for positioning the ear plate assembly 5 on the bulldozer blade assembly 77. The ear plate assembly positioning fixture is set on the bulldozer blade assembly welding fixture. The ear plate assembly positioning fixture includes a fixing plate 3 and ear plate opening shims 5 set on both sides of the fixing plate 3 for inserting between the two ear plates of the ear plate assembly 5. The number of ear plate opening shims 5 is adjustable, and the ear plate opening shims 5 are detachably connected to the fixing plate 3 to facilitate adjustment of the number of ear plate opening shims 5.

[0022] Specifically, such as Figure 1 and Figure 2As shown, the ear plate assembly positioning fixture also includes a positioning frame 2, with fixing plates 3 fixedly mounted on the positioning frame 2. The positioning frame 2 is a rectangular frame structure. Four fixing plates 3 are arranged in two rows. The two fixing plates 3 in the same row are on the same straight line parallel to the first direction, and the two rows of fixing plates 3 are on the same straight line parallel to the second direction. Both the first and second directions are horizontal and perpendicular to each other. The ear plate assembly 5 consists of a connecting plate and two ear plates fixedly mounted on the connecting plate. There is a certain distance between the two ear plates. The connecting plate is used for welding to the bulldozer plate assembly 7. The ear plate opening shims 5, which are set on both sides of the fixed plate 3, are on the same straight line parallel to the first direction. The ear plate opening shims 5 are 1mm thick shims. The ear plate opening shims 5 set on both sides of the fixed plate 3 are used to contact the two ear plates of the ear plate assembly 5 respectively. The number of ear plate opening shims 5 on both sides of the fixed plate 3 can be different. By changing the number of ear plate opening shims 5, the positioning position of the ear plate assembly 5 on the bulldozer plate assembly 7 can be adjusted to ensure the accuracy of the positioning position of the ear plate assembly 5.

[0023] like Figure 1 and Figure 2 As shown, in this embodiment, the ear plate opening washer 5 is bolted to the fixing plate 3. The ear plate opening washer 5 has a through hole for the bolt to pass through, and the fixing plate 3 has a threaded hole. The ear plate of the ear plate assembly 5 is positioned on the fixing plate 3 by a first positioning pin 8. The fixing plate 3 and the ear plate opening washer 5 have through holes for the first positioning pin 8 to pass through, and the end of the ear plate has a positioning hole for the first positioning pin 8 to be inserted. The axis of the first positioning pin 8 is parallel to the first direction. The first positioning pin 8 can be pulled out from the through holes provided on the fixing plate 3 and the ear plate opening washer 5, so that the ear plate assembly positioning fixture can be separated from the ear plate assembly 5.

[0024] like Figure 1 and Figure 2 As shown, a reinforcing rod 6 is provided between two fixed plates 3 in the same row. The length direction of the reinforcing rod 6 is parallel to the first direction. The reinforcing rod 6 is fixedly connected to the two fixed plates 3 and the positioning frame 2 in the same row to ensure the overall structural strength of the positioning fixture.

[0025] like Figure 1 and Figure 2As shown, the bulldozer blade assembly welding fixture includes a base frame 1 and a first positioning backing 14, a second positioning backing 16, and a positioning mechanism mounted on the base frame 1. Multiple second positioning backings 16 are provided and are configured to position the bulldozer blade assembly 7. A third positioning backing 13 is provided on the second positioning backing 16 and is configured to position the two side plates 12. The bulldozer blade assembly 7 is located between the two side plates 12. The positioning mechanism is configured to position the ear plate assembly positioning fixture. The base frame 1 is horizontally positioned. A first positioning support 14 and second positioning supports 16 are mounted on the top surface of the base frame 1. The first positioning support 14 and all of the second positioning supports 16 are aligned on the same straight line parallel to the first direction. The first positioning support 14 is used to abut against one of the side plates 12, keeping the side plate 12 vertical. The second positioning supports 16 provide positioning and support for the bulldozer blade assembly 7. The top surface of the second positioning support 16 matches the bottom surface of the bulldozer blade assembly 7. The top surface of the second positioning support 16 and the bulldozer blade... The bottom surface of component 7 is attached to achieve positioning of bulldozer blade component 7. The length direction of bulldozer blade component 7 is parallel to the first direction. One end of bulldozer blade component 7 is attached to a side plate 12, and the other end of bulldozer blade component 7 is attached to another side plate 12. The third positioning backing 13 is fixedly installed on a second positioning backing 16 that is far away from the first positioning backing 14 and on the second positioning backing 16 that is closest to the first positioning backing 14. That is, among all the second positioning backings 16, the third positioning backing 13 is installed on two of the second positioning backings 16.

[0026] like Figure 1 and Figure 2 As shown, a clamping mechanism is provided on the base frame 1 to apply pressure to the side plate 12 positioned by the third positioning support 13. Multiple clamping mechanisms are provided, and all clamping mechanisms are located on the same straight line parallel to the second direction. The second positioning support 16 is located between the clamping mechanism and the first positioning support 14. The clamping mechanism includes a clamping bracket 10 mounted on the base frame 1 and a quick-change thrust clamp 18 mounted on the clamping bracket 10. The lower end of the clamping bracket 10 is fixedly connected to the base frame 1, and the quick-change thrust clamp 18 is fixedly installed on the upper end of the clamping bracket 10. The quick-change thrust clamp 18 applies pressure along the first direction to the side plate 12, causing the side plate 12 to fit against the bulldozer blade assembly 7, thereby clamping and fixing the two side plates 12 to the bulldozer blade assembly 7.

[0027] like Figure 1 and Figure 2 As shown, there are two clamping mechanisms and five second positioning supports 16.

[0028] like Figure 1 and Figure 2As shown, the positioning mechanism includes a positioning rod 17 and a second positioning pin 9 disposed on the positioning rod 17. The lower end of the positioning rod 17 is fixedly connected to the base frame 1, and the second positioning pin 9 is fixedly installed on the upper end of the positioning rod 17. The second positioning pin 9 is used to insert into the positioning hole provided on the positioning frame 2 to realize the positioning of the ear plate assembly positioning fixture. At the same time, the positioning rod 17 provides support for the positioning frame 2, so that the positioning frame 2 is kept in a horizontal state.

[0029] like Figure 1 and Figure 2 As shown, four positioning rods 17 are provided, and the four positioning rods 17 are distributed in a rectangular shape. All the second positioning supports 16 are located between the two rows of positioning rods 17.

[0030] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A welding fixture for the structural components of a grader bulldozer blade, characterized in that: The ear plate assembly positioning tool is arranged on the bulldozing blade assembly tacking tool, and the ear plate assembly positioning tool comprises a fixed plate and ear plate opening spacers arranged on both sides of the fixed plate and used for being inserted between two ear plates of an ear plate assembly.

2. The grader blade structure welding fixture of claim 1, wherein: The ear plate opening spacers are bolted on the fixed plate, and the ear plate opening spacers are provided with through holes for the bolts to pass through.

3. The grader blade structure welding fixture of claim 1, wherein: The ear plate assembly positioning tool further comprises a positioning frame, and the fixed plate is arranged on the positioning frame.

4. The grading machine blade structure welding fixture of any one of claims 1 to 3, wherein: The bulldozing blade assembly tacking tool comprises a base frame, a first positioning abutment and a second positioning abutment arranged on the base frame, and a positioning mechanism.

5. The grader blade structure welding fixture of claim 4, wherein: The second positioning abutment is arranged in multiple and is arranged for positioning the bulldozing plate assembly.

6. The grader blade structure welding fixture of claim 5, wherein: The second positioning abutment is provided with a third positioning abutment, and the third positioning abutment is arranged for positioning the two side plates.

7. The grader blade structure welding fixture of claim 4, wherein: The bulldozing plate assembly is located between the two side plates.

8. The grader blade structure welding fixture of claim 7, wherein: The positioning mechanism is arranged for positioning the ear plate assembly positioning tool. The positioning mechanism comprises a positioning rod and a positioning pin arranged on the positioning rod. The positioning rod is arranged in multiple. The base frame is provided with a pressing mechanism for applying pressure to the side plates positioned by the third positioning abutment. The second positioning abutment is located between the pressing mechanism and the first positioning abutment. The pressing mechanism comprises a pressing support arranged on the base frame and a quick-change thrust clamp arranged on the pressing support.

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