Full welding tool for engineering machinery oil tank

CN224927323UActive Publication Date: 2026-11-03HEFEI HARBIN ZHENGMING INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202522569906.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-03
Publication Date
2026-11-03
Estimated Expiration
2035-12-03

AI Technical Summary

Technical Problem

Existing tooling for fuel tanks in construction machinery is inefficient, time-consuming, and labor-intensive due to the need to adapt to different sizes, which increases labor costs.

Method used

Design a fully welded fixture that includes a transverse clamping mechanism, a transverse positioning mechanism, a longitudinal clamping mechanism, and a longitudinal positioning mechanism. Through the synergistic effect of these mechanisms, rapid positioning and clamping of oil tanks of different sizes can be achieved.

Benefits of technology

It enables rapid positioning and clamping of oil tanks of different sizes, improves the level of automation, reduces labor costs, and meets the high-efficiency production needs of automated production lines.

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Abstract

The utility model discloses a kind of full welding tool for engineering machinery oil tank, it is related to full welding tool technical field, including box, the top surface one side of the box is provided with horizontal pressing mechanism, the top surface of the box is located in the symmetrical side of horizontal pressing mechanism and is provided with horizontal positioning mechanism, the top surface of the box is located in the right side of horizontal pressing mechanism and horizontal positioning mechanism connecting line and is provided with longitudinal pressing mechanism, the top surface of the box is located in the symmetrical side of longitudinal pressing mechanism and is provided with longitudinal positioning mechanism.This tool utilizes the first top block controllable orientation second top block sliding, third top block controllable orientation fourth top block sliding, to position the oil tank of different size size between first positioning block, second positioning block, third positioning block and fourth positioning block and clamps, successfully realized the oil tank of different size size is positioned clamped quickly, structure is simple, degree of automation is high, positioning clamps more efficiently, greatly save labor cost.
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Description

Technical Field

[0001] This utility model relates to the field of full welding fixture technology, specifically a full welding fixture for an engineering machinery fuel tank. Background Technology

[0002] Hydraulic and fuel tanks for construction machinery come in a wide variety of types and specifications, with significant differences in structure and dimensions. Specialized tooling is required for precise positioning and clamping of the tanks during welding operations, enabling subsequent automated welding via a welding positioner.

[0003] Currently, traditional fuel tank welding fixtures generally use special fixtures for positioning and clamping. However, these fixtures are bulky and heavy, and replacing them requires a lot of manual labor, which is both time-consuming and labor-intensive. This cannot meet the high-efficiency production needs of customers' automated production lines, resulting in the need to invest more human resources and thus increase production costs.

[0004] To address this, a full welding fixture for the fuel tank of engineering machinery is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a full welding fixture for the fuel tank of engineering machinery, so as to solve the problems mentioned in the background art, which are low fuel tank positioning and clamping efficiency, time and labor costs, and high labor costs caused by the need for frequent replacement of existing special fixtures to adapt to fuel tanks of different sizes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a full welding fixture for an engineering machinery oil tank, comprising a box body, the box body being square and having an internal cavity, a transverse pressing mechanism being provided on one side of the top surface of the box body, a transverse positioning mechanism being provided on the symmetrical side of the top surface of the box body located on the transverse pressing mechanism, a longitudinal pressing mechanism being provided on the right side of the line connecting the transverse pressing mechanism and the transverse positioning mechanism on the top surface of the box body, and a longitudinal positioning mechanism being provided on the symmetrical side of the top surface of the box body located on the longitudinal pressing mechanism; The lateral pressing mechanism includes a first top block that is controllably slidably connected to the top surface of the box, and a first positioning block is provided on the top surface of the first top block; The lateral positioning mechanism includes a second top block disposed on the top surface of the box body, and a second positioning block is disposed on the top surface of the second top block; The longitudinal pressing mechanism includes a third top block that is controllably slidably connected to the top surface of the box, and a third positioning block is provided on the top surface of the third top block; The longitudinal positioning mechanism includes a fourth top block disposed on the top surface of the box body, and a fourth positioning block is disposed on the top surface of the fourth top block.

[0007] Preferably, the top surface of the box body is provided with a first sliding groove in the moving direction of the first top block, the bottom of the first top block is provided with a T-shaped connecting block, the inside of the box body is provided with a first cylinder, and the output end of the first cylinder is connected to the T-shaped connecting block with a first connecting rod.

[0008] Preferably, a first slider is provided on both sides of the bottom surface of the first top block, and a first slide rail is provided on both sides of the top surface of the box body located at the first sliding groove, and the first slider slides on the first slide rail.

[0009] Preferably, the top surface of the box body is provided with a second sliding groove in the moving direction of the third top block, the bottom of the third top block is provided with a T-shaped connecting block, the inside of the box body is provided with a second cylinder, and the output end of the second cylinder is connected to the T-shaped connecting block with a second connecting rod.

[0010] Preferably, a second slider is provided on both sides of the bottom surface of the third top block, and a second slide rail is provided on both sides of the top surface of the box body located at the second sliding groove, and the second slider slides on the second slide rail.

[0011] Preferably, the transverse pressing mechanism further includes a first rotary cylinder disposed on the rear side of the first top block, and the output end of the first rotary cylinder is provided with a first pressure rod.

[0012] Preferably, the lateral positioning mechanism further includes a second rotary cylinder disposed on the top surface of the box and located on the rear side of the second top block, and the output end of the second rotary cylinder is provided with a second pressure rod.

[0013] Preferably, the top surface of the box body is provided with several bottom support blocks within the area enclosed by the transverse pressing mechanism, the transverse positioning mechanism, the longitudinal pressing mechanism and the longitudinal positioning mechanism.

[0014] Preferably, the top surface of the box body is provided with several anti-fall suction cup components within the area enclosed by the lateral pressing mechanism, the lateral positioning mechanism, the longitudinal pressing mechanism, and the longitudinal positioning mechanism.

[0015] Preferably, the anti-fall suction cup assembly includes a top suction cup disposed on the top surface of the box and a bottom vacuum system disposed inside the box. The bottom vacuum system includes a vacuum pump and a vacuum breaking valve. The vacuum pump is used to extract air from the top suction cup, and the vacuum breaking valve is used to introduce air into the top suction cup to break the vacuum.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up and cooperating the transverse pressing mechanism, the transverse positioning mechanism, the longitudinal pressing mechanism and the longitudinal positioning mechanism, and utilizing the controllable sliding of the first top block toward the second top block and the controllable sliding of the third top block toward the fourth top block, oil tanks of different sizes are positioned and clamped between the first positioning block, the second positioning block, the third positioning block and the fourth positioning block, thus successfully realizing the rapid positioning and clamping of oil tanks of different sizes. The structure is simple, the degree of automation is high, the positioning and clamping is more efficient, and labor costs are greatly saved. Attached Figure Description

[0017] Figure 1 This is an overall structural view of the present invention; Figure 2 This is an overall structural view from another perspective of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is an internal structural view of the box body in this utility model.

[0018] In the diagram: 1. Box body; 2. Lateral pressing mechanism; 21. First top block; 22. First rotary cylinder; 23. First pressure rod; 24. First slider; 25. First slide rail; 26. First positioning block; 27. First connecting rod; 28. First cylinder; 29. ​​First sliding groove; 3. Lateral positioning mechanism; 31. Second rotary cylinder; 32. Second top block; 33. Second pressure rod; 34. Second positioning block; 4. Longitudinal pressing mechanism; 41. Third top block; 42. Third positioning block; 43. Second slide rail; 44. Second slider; 45. Second sliding groove; 46. Second cylinder; 47. Second connecting rod; 5. Longitudinal positioning mechanism; 51. Fourth top block; 52. Fourth positioning block; 6. Bottom support block; 7. Anti-fall suction cup assembly; 71. Top suction cup; 72. Bottom vacuum system. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] Reference Figure 1-4 As shown, this utility model provides a technical solution for a full welding fixture for an engineering machinery fuel tank: A full welding fixture for an engineering machinery fuel tank includes a box body 1, which is square and has an internal cavity. A transverse pressing mechanism 2 is provided on one side of the top surface of the box body 1. A transverse positioning mechanism 3 is provided on the symmetrical side of the transverse pressing mechanism 2 on the top surface of the box body 1. A longitudinal pressing mechanism 4 is provided on the right side of the line connecting the transverse pressing mechanism 2 and the transverse positioning mechanism 3 on the top surface of the box body 1. A longitudinal positioning mechanism 5 is provided on the symmetrical side of the longitudinal pressing mechanism 4 on the top surface of the box body 1.

[0023] The transverse pressing mechanism 2 includes a first top block 21 controllably slidably connected to the top surface of the box body 1, and a first positioning block 26 is provided on the top surface of the first top block 21; the transverse positioning mechanism 3 includes a second top block 32 provided on the top surface of the box body 1, and a second positioning block 34 is provided on the top surface of the second top block 32; the longitudinal pressing mechanism 4 includes a third top block 41 controllably slidably connected to the top surface of the box body 1, and a third positioning block 42 is provided on the top surface of the third top block 41; the longitudinal positioning mechanism 5 includes a fourth top block 51 provided on the top surface of the box body 1, and a fourth positioning block 52 is provided on the top surface of the fourth top block 51.

[0024] Working principle: When using this fixture, first place the engineering machinery oil tank (hereinafter referred to as the oil tank) to be welded in the area enclosed by the transverse clamping mechanism 2, transverse positioning mechanism 3, longitudinal clamping mechanism 4 and longitudinal positioning mechanism 5 on the top surface of the box 1. Then, activate the transverse clamping mechanism 2 and the longitudinal clamping mechanism 4. The first top block 21 will slide towards the transverse positioning mechanism 3, and the third top block 41 will slide towards the longitudinal positioning mechanism 5, so that the four sides of the oil tank will finally abut against the first positioning block 26, the second positioning block 34, the third positioning block 42 and the fourth positioning block 52 respectively, thereby completing the rapid positioning and clamping of oil tanks of different sizes, providing a reliable guarantee for the subsequent welding process.

[0025] By setting up and cooperating with the transverse clamping mechanism 2, transverse positioning mechanism 3, longitudinal clamping mechanism 4 and longitudinal positioning mechanism 5, and utilizing the controllable sliding of the first top block 21 toward the second top block 32 and the controllable sliding of the third top block 41 toward the fourth top block 51, oil tanks of different sizes are positioned and clamped between the first positioning block 26, the second positioning block 34, the third positioning block 42 and the fourth positioning block 52. This successfully achieves rapid positioning and clamping of oil tanks of different sizes. The structure is simple, the degree of automation is high, the positioning and clamping is more efficient, and labor costs are greatly saved.

[0026] Reference Figure 1-4 As shown, in an optional embodiment: the top surface of the housing 1 has a first sliding groove 29 in the moving direction of the first top block 21, the bottom of the first top block 21 is provided with a T-shaped connecting block, the inside of the housing 1 is provided with a first cylinder 28, and the output end of the first cylinder 28 is connected to the T-shaped connecting block by a first connecting rod 27. It should be noted that when using this tooling, the first cylinder 28 drives the first connecting rod 27 to move the T-shaped connecting block, so that the first top block 21 moves along the first sliding groove 29, thereby completing the positioning and clamping of the oil tank. The structure is simple, the degree of automation is high, and it is easy to use.

[0027] Reference Figure 1-4 As shown, in an optional embodiment: First sliders 24 are provided on both sides of the bottom surface of the first top block 21, and first slide rails 25 are provided on both sides of the top surface of the box 1 located at the first sliding groove 29. The first sliders 24 slide on the first slide rails 25. It should be noted that when using this fixture, the first top block 21 can slide smoothly on the first slide rails 25 via the first sliders 24, making the movement of the first top block 21 smoother, which is beneficial for the oil tank positioning and clamping process and improves the efficiency of oil tank positioning and clamping.

[0028] Reference Figure 1-4As shown, in an optional embodiment: the top surface of the housing 1 has a second sliding groove 45 in the moving direction of the third top block 41, the bottom of the third top block 41 is provided with a T-shaped connecting block, the inside of the housing 1 is provided with a second cylinder 46, and the output end of the second cylinder 46 is connected to the T-shaped connecting block with a second connecting rod 47. It should be noted that when using this tooling, the second cylinder 46 drives the second connecting rod 47 to move the T-shaped connecting block, so that the third top block 41 reciprocates along the second sliding groove 45, thereby completing the positioning and clamping of the oil tank. The structure is simple, the degree of automation is high, and it is easy to use.

[0029] Reference Figure 1-4 As shown, in an optional embodiment: Second sliders 44 are provided on both sides of the bottom surface of the third top block 41, and second slide rails 43 are provided on both sides of the top surface of the box 1 located at the second sliding groove 45. The second sliders 44 slide on the second slide rails 43. It should be noted that when using this fixture, the third top block 41 can slide smoothly on the second slide rails 43 via the second sliders 44, making the movement of the third top block 41 smoother, which is beneficial for the oil tank positioning and clamping process and improves the efficiency of oil tank positioning and clamping.

[0030] Reference Figure 1-4 As shown, in an optional embodiment, the transverse clamping mechanism 2 further includes a first rotary cylinder 22 disposed on the rear side of the first top block 21, and a first pressure rod 23 is disposed at the output end of the first rotary cylinder 22. It should be noted that when using this fixture, after the oil tank abuts against the first positioning block 26 and the positioning and clamping are completed, the first rotary cylinder 22 is activated, and its output end rotates to drive the first pressure rod 23 to tightly press against the side wall of the oil tank, thereby further improving the stability of the oil tank positioning and clamping.

[0031] Reference Figure 1-4 As shown, in an optional embodiment, the lateral positioning mechanism 3 further includes a second rotary cylinder 31 disposed on the top surface of the housing 1 and located behind the second top block 32. The output end of the second rotary cylinder 31 is provided with a second pressure rod 33. It should be noted that when using this fixture, after the oil tank abuts against the second positioning block 34 and the positioning and clamping are completed, the second rotary cylinder 31 is activated, and its output end rotates to drive the second pressure rod 33 to press tightly against the side wall of the oil tank, thereby further improving the stability of the oil tank positioning and clamping.

[0032] Reference Figure 1-4As shown, in an optional embodiment, a plurality of bottom support blocks 6 are provided on the top surface of the housing 1 within the area enclosed by the transverse pressing mechanism 2, the transverse positioning mechanism 3, the longitudinal pressing mechanism 4, and the longitudinal positioning mechanism 5. It should be noted that, through the provision of the bottom support blocks 6, during the positioning and clamping process of the oil tank, the bottom surface of the oil tank contacts the top surface of the support block 6, avoiding direct and complete contact between the oil tank and the top surface of the housing 1, thus preventing wear on the top surface of the housing 1. Simultaneously, it reduces wear on the oil tank caused by movement during positioning and clamping.

[0033] Reference Figure 1-4 As shown, in an optional embodiment, a plurality of anti-fall suction cup assemblies 7 are provided on the top surface of the housing 1 within the area enclosed by the transverse clamping mechanism 2, the transverse positioning mechanism 3, the longitudinal clamping mechanism 4, and the longitudinal positioning mechanism 5. It should be noted that the anti-fall suction cup assemblies 7 provide an additional layer of protection after the oil tank is positioned and clamped. That is, if the transverse clamping mechanism 2 or the longitudinal clamping mechanism 4 fails due to mechanical malfunction, the anti-fall suction cup assemblies 7 can still prevent the oil tank from falling off the fixture, further improving the stability of the oil tank positioning and clamping.

[0034] Reference Figure 1-4 As shown, in an optional embodiment: the anti-fall suction cup assembly 7 includes a top suction cup 71 disposed on the top surface of the housing 1 and a bottom vacuum system 72 disposed inside the housing 1. The bottom vacuum system 72 includes a vacuum pump and a vacuum breaking valve. The vacuum pump is used to extract the air from the top suction cup 71, and the vacuum breaking valve is used to introduce air into the top suction cup 71 to break the vacuum. It should be noted that when using this fixture, after the oil tank is positioned, the bottom surface of the oil tank will press against the top suction cup 71. Activating the bottom vacuum system 72 will extract the air from the top suction cup 71, so that the top suction cup 71 adheres only to the bottom surface of the oil tank under atmospheric pressure, thereby further enhancing the stability of the oil tank positioning and clamping. The structure is simple, highly automated, and easy for users to operate.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A full welding fixture for an engineering machinery fuel tank, comprising a box body (1), wherein the box body (1) is square and has an internal cavity, characterized in that: A transverse pressing mechanism (2) is provided on one side of the top surface of the box (1). A transverse positioning mechanism (3) is provided on the symmetrical side of the transverse pressing mechanism (2) on the top surface of the box (1). A longitudinal pressing mechanism (4) is provided on the right side of the line connecting the transverse pressing mechanism (2) and the transverse positioning mechanism (3) on the top surface of the box (1). A longitudinal positioning mechanism (5) is provided on the symmetrical side of the longitudinal pressing mechanism (4) on the top surface of the box (1). The transverse pressing mechanism (2) includes a first top block (21) that is controllably slidably connected to the top surface of the box (1), and a first positioning block (26) is provided on the top surface of the first top block (21). The lateral positioning mechanism (3) includes a second top block (32) disposed on the top surface of the box (1), and a second positioning block (34) is disposed on the top surface of the second top block (32). The longitudinal pressing mechanism (4) includes a third top block (41) that is controllably slidably connected to the top surface of the box (1), and a third positioning block (42) is provided on the top surface of the third top block (41). The longitudinal positioning mechanism (5) includes a fourth top block (51) disposed on the top surface of the box (1), and a fourth positioning block (52) is disposed on the top surface of the fourth top block (51).

2. The full welding fixture for an engineering machinery fuel tank according to claim 1, characterized in that: The top surface of the box (1) is provided with a first sliding groove (29) in the moving direction of the first top block (21). A T-shaped connecting block is provided at the bottom of the first top block (21). A first cylinder (28) is provided inside the box (1). A first connecting rod (27) is connected between the output end of the first cylinder (28) and the T-shaped connecting block.

3. The full welding fixture for an engineering machinery fuel tank according to claim 2, characterized in that: The bottom surface of the first top block (21) is provided with a first slider (24) on both sides. The top surface of the box (1) is provided with a first slide rail (25) on both sides of the first sliding groove (29). The first slider (24) slides on the first slide rail (25).

4. The full welding fixture for an engineering machinery fuel tank according to claim 1, characterized in that: The top surface of the box (1) is provided with a second sliding groove (45) in the moving direction of the third top block (41). A T-shaped connecting block is provided at the bottom of the third top block (41). A second cylinder (46) is provided inside the box (1). A second connecting rod (47) is connected between the output end of the second cylinder (46) and the T-shaped connecting block.

5. The full welding fixture for an engineering machinery fuel tank according to claim 4, characterized in that: The bottom surface of the third top block (41) is provided with a second slider (44) on both sides. The top surface of the box (1) is provided with a second slide rail (43) on both sides of the second sliding groove (45). The second slider (44) slides on the second slide rail (43).

6. The full welding fixture for an engineering machinery fuel tank according to claim 1, characterized in that: The transverse pressing mechanism (2) further includes a first rotary cylinder (22) located on the rear side of the first top block (21), and the output end of the first rotary cylinder (22) is provided with a first pressure rod (23).

7. The full welding fixture for an engineering machinery fuel tank according to claim 6, characterized in that: The lateral positioning mechanism (3) further includes a second rotary cylinder (31) disposed on the top surface of the box (1) and located on the rear side of the second top block (32), and the output end of the second rotary cylinder (31) is provided with a second pressure rod (33).

8. The full welding fixture for an engineering machinery fuel tank according to claim 1, characterized in that: The top surface of the box (1) is provided with several bottom support blocks (6) within the area enclosed by the transverse pressing mechanism (2), the transverse positioning mechanism (3), the longitudinal pressing mechanism (4) and the longitudinal positioning mechanism (5).

9. The full welding fixture for an engineering machinery fuel tank according to claim 1, characterized in that: The top surface of the box (1) is provided with several anti-fall suction cup assemblies (7) within the area enclosed by the transverse pressing mechanism (2), the transverse positioning mechanism (3), the longitudinal pressing mechanism (4) and the longitudinal positioning mechanism (5).

10. A full welding fixture for an engineering machinery fuel tank according to claim 9, characterized in that: The anti-fall suction cup assembly (7) includes a top suction cup (71) disposed on the top surface of the box (1) and a bottom vacuum system (72) disposed inside the box (1). The bottom vacuum system (72) includes a vacuum pump and a vacuum breaking valve. The vacuum pump is used to extract air from the top suction cup (71), and the vacuum breaking valve is used to introduce air into the top suction cup (71) to break the vacuum.