Oil tank welding and fixing tool

Abstract

The utility model discloses an oil tank welding fixing tool, and relates to the field of clamp tools, the oil tank welding fixing tool comprises a mounting plate, an oil tank body is arranged on the mounting plate, the mounting plate is provided with a first limiting device and a second limiting device, the first limiting device and the second limiting device are located on two opposite sides of the oil tank body, and the first limiting device and the second limiting device comprise a plurality of quick clamps; the welding block abuts against the welding position of the oil tank body through the quick clamp; a first fastening device and a second fastening device are further arranged on the mounting plate; the first limiting device and the second limiting device are located on the other two opposite sides of the oil tank body and comprise a plurality of fastening clamps, and the fastening clamps abut against the top of the oil tank body from top to bottom to fasten the oil tank body to the mounting plate. According to the device, the fasteners are arranged in the four directions and the top of the oil tank assembly respectively, meanwhile, all parts used for welding abut against the side wall of the oil tank through the telescopic cylinders, the welding precision is determined, meanwhile, vibration of the oil tank is reduced, and the manual welding efficiency can be greatly improved.

Description

Technical Field

[0001] The present application relates to the field of fixtures and tools, and in particular to a fuel tank welding and fixing tool. Background Art

[0002] Compared with ordinary automobile fuel tanks, the structure of the excavator fuel tank is larger in size and has more parts. Usually, several sheet metal structures are welded in sequence on the fuel tank body to obtain a fuel tank assembly. Figure 1 This is a schematic diagram of the structure of the fuel tank assembly. Because there are many parts welded to the fuel tank body and in different positions, including the oil filling port, curved ring, connecting block and fixing parts, these parts need to be assembled and welded separately. In the actual welding and assembly process, due to factors such as fixed angle, position, and size design errors, the relative distance, angle and other parameters between the sheet metal parts will change after welding, that is, the product structure will be deformed, and ultimately the special-shaped parts after welding cannot be accurately installed on the equipment.

[0003] In the related art, the welding of such fuel tank parts usually requires the participation of multiple workers, and auxiliary measurements are performed using tools such as brackets, levels, and measuring instruments to verify whether they can be used normally. This method requires more labor costs, and the efficiency of verification and welding is low. Utility Model Content

[0004] The embodiment of the present application provides a tank welding fixture to solve the problem of looseness and misalignment of the parts of the tank being welded. Specifically, it comprises a mounting plate, on which the tank body is arranged, on which a first limit device and a second limit device are arranged, the first limit device and the second limit device are located on two opposite sides of the tank body, and comprise a plurality of quick clamps, which press the welding block against the welding part of the tank body;

[0005] A first fastening device and a second fastening device are also provided on the mounting plate; the first limit device and the second limit device are located on the other two opposite sides of the oil tank body, and include a plurality of fastening clips, which press against the top of the oil tank body from top to bottom to fasten the oil tank body to the mounting plate.

[0006] Specifically, the first limiting device includes a plurality of first quick clamps, a fixed row, a push plate and a first telescopic cylinder;

[0007] The fixing row is fixedly mounted on the mounting plate, and the first quick clamp is mounted on the fixing row;

[0008] The push plate has a length matching that of the fixed row and is located between the first quick clamp and the fuel tank body;

[0009] The push rod of the first quick clamp is installed on the push plate to push the push plate to generate displacement; the tail end of the first telescopic cylinder is installed on the push plate, the top end is passed through and installed on the fixed row, and the top end is against the side wall of the oil tank body.

[0010] Specifically, the second limiting device includes a limiting seat, a second quick clamp and a second telescopic cylinder;

[0011] The limit seat is fixedly mounted on the mounting plate, the second quick clamp is mounted on the limit seat, and the push rod of the second quick clamp and the tail end of the second telescopic cylinder are passed through and fixed on the limit seat;

[0012] The push rod of the second quick clamp is connected to the rear end of the second telescopic cylinder, and the top end of the second telescopic cylinder presses the welding block against the side wall of the oil tank body.

[0013] Specifically, at least two second limiting devices arranged side by side are arranged on the mounting plate, and a plurality of second quick clamps and second telescopic cylinders are arranged on the second limiting devices.

[0014] Specifically, a clamping seat and a clamping plate are further provided on the side of the second limiting device, and the clamping seat is mounted on the mounting plate, and the height of the oil tank body is consistent;

[0015] The clamping plate is installed on the clamping seat and is perpendicular to the clamping seat. The end of the clamping plate clamps the fixing piece installed on the oil tank body.

[0016] Specifically, the first fastening device includes a first fastening seat, a third quick clamp and a first fastening clamp;

[0017] The first fastening seat is installed on the mounting plate, the third quick clamp is installed on the first fastening seat and is pressed against the oil tank body through a push rod; the first fastening clamp is installed on the top of the first fastening seat, with the height consistent with the oil tank body, and is pressed against the top of the oil tank body from top to bottom.

[0018] Specifically, the first fastening seat is an L-shaped plate, the third quick clamp is installed on the bottom plate of the L-shaped plate, a through hole is opened on the side plate, the push rod of the third quick clamp passes through the through hole and abuts against the tank body; the first fastening clamp is fixedly installed on the top of the side plate.

[0019] Specifically, the second fastening device is located on the opposite side of the first fastening device, and includes a second fastening seat and a second fastening clamp; the second fastening seat is installed on the mounting plate, and the second fastening clamp is installed on the top of the second fastening seat, with a height consistent with the tank body, and presses against the top of the tank body from top to bottom.

[0020] Specifically, an oil port fixing device is also provided on the side of the first fastening device, and the oil port fixing device includes an oil port fixing seat, a fourth quick clamp and an oil port fixing plate;

[0021] The oil filling ports of the oil port fixing seat and the oil tank assembly are of the same height, the fourth quick clamp is fixedly mounted on the oil port fixing seat, and the oil port fixing plate is mounted on the push rod of the fourth quick clamp and abuts against the oil filling port.

[0022] Specifically, an L-shaped positioning plate is further installed on the side wall of the oil tank on one side of the first fastening device, and the curved ring is arranged at the welding hole position of the positioning plate.

[0023] The beneficial effects brought about by the technical solution provided in the embodiment of the present application include at least: the device is provided with fasteners in four directions and the top of the fuel tank assembly, and all parts used for welding are pressed against the side wall of the fuel tank with a telescopic cylinder, which ensures the welding accuracy while reducing the vibration of the fuel tank, and can greatly improve the efficiency of manual welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the fuel tank assembly of an excavator;

[0025] Figure 2 It is a structural schematic diagram of the oil tank welding and fixing tooling provided in an embodiment of the present application;

[0026] Figure 3 is a schematic structural diagram of a first limiting device;

[0027] Figure 4 yes Figure 2 The enlarged view of point A in the middle;

[0028] Figure 5 yes Figure 2 The enlarged view of point B in the middle;

[0029] Figure 6 is a schematic diagram of the installation of the second fastening device;

[0030] Figure 7 is a schematic diagram of the installation of the first fastening device;

[0031] Figure 8 It is the installation diagram of the oil tank welding fixing tooling.

[0032] 1. The oil tank assembly includes the following: 10. The oil tank assembly includes the following: 11. The oil tank body includes the following: 12. The oil filling port includes the following: 13. The welding block includes the following: 14. The curved ring includes the following: 15. The fixing piece includes the following: 16. The positioning plate includes the following: 20. The mounting plate includes the following: 21. The limiting strip includes the following: 30. The first limiting device includes the following: 31. The first quick clamp includes the following: 32. The fixing row includes the following: 33. The push plate includes the following: 34. The push rod includes the following: 35. The first telescopic cylinder includes the following: 40. The second limiting device includes the following: 41. The limiting seat includes the following: 42. The second quick clamp includes the following: 43. The second telescopic cylinder includes the following: 50. The first fastening device includes the following: 51. The first fastening seat includes the following: 52. The third quick clamp includes the following: 53. The first fastening clamp includes the following: 54. The through hole includes the following: 60. The oil port fixing device includes the following: 61. The oil port fixing seat includes the following: 62. The fourth quick clamp includes the following: 63. The oil port fixing plate includes the following: 70. The second fastening device includes the following: 71. The second fastening seat includes the following: 72. The second fastening clamp includes the following: 81. The clamping seat includes the following: 82. The clamping plate includes the following: DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0034] The term "multiple" as used herein refers to two or more than two. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0035] Figure 1 The structure diagram of the fuel tank assembly is shown in FIG. 1 . The structure of the fuel tank body 11 is close to a rectangular block structure, and the oil filling port 12, welding block 13, curved ring 14, fixing part 15 and other parts need to be welded to the mailbox body 11 separately. Only after welding is completed can the complete fuel tank assembly 10 be formed. The problem with the fuel tank assembly 10 is that the position, height and angle of the welding points of each component are strictly set, and manual measurement one by one will affect the efficiency of welding.

[0036] Based on the above reasons, the present application embodiment provides a fuel tank welding fixture, see Figure 2As shown, the tooling specifically includes a mounting plate 20, and the fuel tank body 11 is arranged on the mounting plate 20. A first limiting device 30 and a second limiting device 40 are arranged on the mounting plate 20. The first limiting device 30 and the second limiting device 40 are located on two opposite sides of the fuel tank body 11 (i.e., the wide side of the fuel tank body 11), and include a plurality of quick clamps, and the quick clamps press the welding block 13 against the welding part of the fuel tank body 11. Because the number and height of the welding blocks 13 are different, a quick clamp can be used to fasten multiple welding blocks at the same time. See the sequel for details. A first fastening device 50 and a second fastening device 70 are also arranged on the mounting plate 20; the first limiting device 30 and the second limiting device 40 are located on the other two opposite sides of the fuel tank body 11 (i.e., the narrow side of the fuel tank body), and include a plurality of fastening clamps, and the fastening clamps press against the top of the fuel tank body 11 from top to bottom to fasten the fuel tank body 11 to the mounting plate 20. The two limiting devices in the structure mainly play the role of fixing and limiting the entire structure to the left and right, while the two fastening devices clamp the oil tank body 11 to the mounting plate 20 from above.

[0037] like Figure 8 As shown, in some embodiments, because the limiting device and the fastening device are both fixedly mounted on the mounting plate 20, in order to facilitate the rapid welding of the fuel tank body 11, a limiting strip 21 can be provided on the mounting plate 20. The number, position and shape of the limiting strip 21 are mainly arranged according to the structure of the fuel tank body 11, and the purpose is to quickly place it at the target position of the mounting plate 20.

[0038] See also Figure 3 As shown, in some embodiments, the first limiting device 30 includes a plurality of first quick clamps 31, a fixed row 32, a push plate 33 and a first telescopic cylinder 35. The fixed row 32 is fixedly mounted on the mounting plate 20, and the first quick clamp 31 is mounted on the fixed row 32. The lengths of the fixed row 32 and the push plate 33 match, which is mainly determined by the coverage length range of the welding block 13. The push plate 33 is located between the first quick clamp 31 and the fuel tank body 11, the push rod 34 of the first quick clamp 31 is mounted on the push plate 33, the tail end of the first telescopic cylinder 35 is mounted on the push plate 33, and the top end is penetrated and mounted on the fixed row 32. The assembly mainly drives the fixed row 32 to move by pressing the first quick clamp 31, and the fixed row 32 drives the first telescopic cylinder 35 to move, and the top end is pressed against the side wall of the fuel tank body 11 to achieve the front and rear side limiting.

[0039] join Figure 5As shown, the second limiting device 40 includes a limiting seat 41, a second quick clamp 42 and a second telescopic cylinder 43. The limiting seat 41 is fixedly mounted on the mounting plate 20, the second quick clamp 42 is mounted on the limiting seat 41, and the push rod of the second quick clamp 42 and the tail end of the second telescopic cylinder 43 are passed through and fixed on the limiting seat 41. The difference is that, because the side wall of the oil tank where the second limiting device 40 is located needs to fix multiple welding blocks 13 of different heights, it is necessary to connect the push rod of the second quick clamp 42 with the tail end of the second telescopic cylinder 43, and push the welding block 13 against the side wall of the oil tank body 11 through the top end of the second telescopic cylinder 43. That is, by pressing the handle of the second quick clamp 42, the second telescopic cylinder 43 is directly driven to push the welding block 13 against the side wall of the oil tank.

[0040] Of course, when the number of welding blocks 13 is large, at least two second limiting devices 40 arranged side by side may be provided on the mounting plate 20 , and a plurality of second quick clamps 42 and second telescopic cylinders 43 may be provided on the second limiting device 40 .

[0041] A clamping seat 81 and a clamping plate 82 are also provided on the side of the second limiter 40. The clamping seat 81 is mounted on the mounting plate 20, and the height of the fuel tank body 11 is consistent. The clamping plate 82 is mounted on the clamping seat 81 and is perpendicular to the clamping seat 81. The end of the clamping plate 82 clamps the fixing member 15 installed on the fuel tank body 11.

[0042] See also Figure 4 As shown, the first fastening device 50 includes a first fastening seat 51, a third quick clip 52 and a first fastening clip 53. The first fastening seat 51 is mounted on the mounting plate 20, and the third quick clip 52 is mounted on the first fastening seat 51 and abuts against the fuel tank body 11 through a push rod. The first fastening clip 53 is mounted on the top of the first fastening seat 51, and its height is consistent with the fuel tank body 11. In some embodiments, the first fastening seat 51 is an L-shaped plate, and the third quick clip 52 is mounted on the bottom plate of the L-shaped plate. A through hole 54 is opened on the side plate, and the push rod of the third quick clip 52 is passed through the through hole 54 and abuts against the fuel tank body 11. The first fastening clip 53 is fixedly mounted on the top of the side plate, and its height should not be lower than the height of the top of the fuel tank. By pressing the handle of the third quick clip 52, its push rod is controlled to press down the top of the fuel tank to reduce the up and down vibration of the fuel tank body.

[0043] See also Figure 6 The second fastening device 70 is located on the opposite side of the first fastening device 50, that is, the other narrow side of the tank body 11. The second fastening device 70 includes a second fastening seat 71 and a second fastening clamp 72. The second fastening seat 71 is installed on the mounting plate 20. The second fastening clamp 72 is installed on the top of the second fastening seat 71, and its height is consistent with that of the tank body 11, and it presses against the top of the tank body 11 from top to bottom.

[0044] Because the oil filling port 12 of the oil tank body 11 needs to be welded independently, an oil port fixing device 60 is also provided on the side of the first fastening device 50, and the oil port fixing device 60 includes an oil port fixing seat 61, a fourth quick clamp 62 and an oil port fixing plate 63. The oil port fixing seat 61 and the oil filling port 12 of the oil tank assembly 10 are of the same height, the fourth quick clamp 62 is fixedly mounted on the oil port fixing seat 61, and the oil port fixing plate 63 is mounted on the push rod of the fourth quick clamp 62 and abuts against the oil filling port 12. In some embodiments, a plurality of telescopic cylinders can also be installed on the oil port fixing seat 61, and the telescopic cylinders and the push rod of the fourth quick clamp 62 are connected to the oil port fixing plate 63 together to play a stabilizing role.

[0045] See also Figure 7 After the welding block 13 and the fixing member 15 are welded, the fuel tank body 11 also needs to weld the curved ring 14 of the cable collection line. However, since the position of the curved ring 14 is difficult to determine, a template is required for positioning, that is, an L-shaped positioning plate 16 is installed on the fuel tank side wall on the side of the first fastening device 50, and finally the curved ring 14 is set in the welding hole of the positioning plate 16, which can ensure the parameters such as the distance and angle between each curved ring 14.

[0046] Working principle: first place the oil tank body 11 at a specific position of the mounting plate 20, and then install the first limiting device 30, the second limiting device 40, the first fastening device 50, the oil port fixing device 60 and the second fastening device 70 on the mounting plate 20. In the limiting and fastening stage, first press the first quick clamp 31 on the first limiting device 30 to drive the push plate 33 to move toward the side of the oil tank body 11, and then extend the top of the first telescopic cylinder 35 to press against the side wall of the oil tank; correspondingly, press the second quick clamp 42 on the second limiting device 40 to directly push the second telescopic cylinder 43 to move toward the side wall of the oil tank, and at this time, put the welding block 13 and other loose parts on the welding point and press them to the welding point.

[0047] During the left and right side tightening stage, the third quick clip 52 of the first fastening device 50 is pressed, and at the same time, the first fastening clip 53 is pressed downward from the top of the fuel tank to press tightly, and the second fastening clip 72 of the second fastening device 70 is pressed accordingly to tighten the fuel tank from both sides.

[0048] The oil filling port 12 is fastened using the oil port fixing device 60 alone, and the welding part is pushed to the position of the oil tank body 11 and pressed against it through the oil port fixing plate 63. The welding operation is performed after all parts are fastened in place.

[0049] The device sets fasteners on the four directions and the top of the fuel tank assembly. At the same time, all parts used for welding are pressed against the side wall of the fuel tank with a telescopic cylinder. While ensuring the welding accuracy, it also reduces the vibration of the fuel tank and can greatly improve the efficiency of manual welding.

[0050] The preferred embodiments of the present invention are described above; it should be understood that the present invention is not limited to the above-mentioned specific implementation modes, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention; therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A fuel tank welding fixture, characterized in that: The invention comprises a mounting plate (20), a fuel tank body (11) is arranged on the mounting plate (20), a first limiting device (30) and a second limiting device (40) are arranged on the mounting plate (20), the first limiting device (30) and the second limiting device (40) are located at two opposite sides of the fuel tank body (11), and comprise a plurality of quick clamps, the quick clamps press the welding block (13) against the welding position of the fuel tank body (11); A first fastening device (50) and a second fastening device (70) are also provided on the mounting plate (20); the first limiting device (30) and the second limiting device (40) are located on the other two opposite sides of the oil tank body (11), and include a plurality of fastening clips, which press against the top of the oil tank body (11) from top to bottom to fasten the oil tank body (11) to the mounting plate (20).

2. The fuel tank welding fixture according to claim 1, characterized in that: The first limiting device (30) comprises a plurality of first quick clamps (31), a fixing row (32), a push plate (33) and a first telescopic cylinder (35); The fixing row (32) is fixedly mounted on the mounting plate (20), and the first quick clamp (31) is mounted on the fixing row (32); The push plate (33) has a length matching that of the fixing row (32) and is located between the first quick clamp (31) and the fuel tank body (11); The push rod (34) of the first quick clamp (31) is mounted on the push plate (33) to push the push plate (33) to generate displacement; the tail end of the first telescopic cylinder (35) is mounted on the push plate (33), the top end is passed through and mounted on the fixed row (32), and the top end is pressed against the side wall of the oil tank body (11).

3. The fuel tank welding fixture according to claim 1, characterized in that: The second limiting device (40) comprises a limiting seat (41), a second quick clamp (42) and a second telescopic cylinder (43); The limiting seat (41) is fixedly mounted on the mounting plate (20), the second quick clamp (42) is mounted on the limiting seat (41), and the push rod of the second quick clamp (42) and the tail end of the second telescopic cylinder (43) are passed through and fixed on the limiting seat (41); The push rod of the second quick clamp (42) is connected to the rear end of the second telescopic cylinder (43), and the top end of the second telescopic cylinder (43) presses the welding block (13) against the side wall of the oil tank body (11).

4. The fuel tank welding fixture according to claim 3, characterized in that: At least two second limiting devices (40) arranged side by side are arranged on the mounting plate (20), and a plurality of second quick clamps (42) and second telescopic cylinders (43) are arranged on the second limiting devices (40).

5. The fuel tank welding fixture according to claim 3, characterized in that: A clamping seat (81) and a clamping plate (82) are also provided on the side of the second limiting device (40); the clamping seat (81) is mounted on the mounting plate (20) and the height of the oil tank body (11) is consistent; The clamping plate (82) is mounted on the clamping seat (81) and is perpendicular to the clamping seat (81). The end of the clamping plate (82) clamps a fixing member (15) mounted on the oil tank body (11).

6. The fuel tank welding fixture according to claim 1, characterized in that: The first fastening device (50) comprises a first fastening seat (51), a third quick clamp (52) and a first fastening clamp (53); The first fastening seat (51) is mounted on the mounting plate (20), and the third quick clamp (52) is mounted on the first fastening seat (51) and abuts against the oil tank body (11) through a push rod; the first fastening clamp (53) is mounted on the top of the first fastening seat (51) and has the same height as the oil tank body (11), abutting against the top of the oil tank body (11) from top to bottom.

7. The fuel tank welding fixture according to claim 6, characterized in that: The first fastening seat (51) is an L-shaped plate, the third quick clamp (52) is mounted on the bottom plate of the L-shaped plate, a through hole (54) is provided on the side plate, a push rod of the third quick clamp (52) passes through the through hole (54) and abuts against the oil tank body (11); the first fastening clamp (53) is fixedly mounted on the top of the side plate.

8. The fuel tank welding fixture according to claim 7, characterized in that: The second fastening device (70) is located on the opposite side of the first fastening device (50), and comprises a second fastening seat (71) and a second fastening clamp (72); the second fastening seat (71) is mounted on the mounting plate (20), and the second fastening clamp (72) is mounted on the top of the second fastening seat (71), with the height being consistent with that of the oil tank body (11), and resting against the top of the oil tank body (11) from top to bottom.

9. The fuel tank welding fixture according to claim 1, characterized in that: An oil port fixing device (60) is also provided on the side of the first fastening device (50), and the oil port fixing device (60) comprises an oil port fixing seat (61), a fourth quick clamp (62) and an oil port fixing plate (63); The oil port fixing seat (61) and the oil filling port (12) of the oil tank assembly (10) are of the same height, the fourth quick clamp (62) is fixedly mounted on the oil port fixing seat (61), and the oil port fixing plate (63) is mounted on the push rod of the fourth quick clamp (62) and abuts against the oil filling port (12).

10. The fuel tank welding fixture according to claim 1, characterized in that: An L-shaped positioning plate (16) is also installed on the oil tank side wall on one side of the first fastening device (50), and the curved ring (14) is arranged at the welding hole position of the positioning plate (16).

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