Fuel tank welding device

Abstract

The utility model relates to the field of welding equipment, and discloses an oil tank welding device which comprises an installation unit and a clamping unit, the installation unit comprises an installation plate and an installation disc, an installation frame is fixedly arranged on the installation plate, the installation disc is arranged on the installation frame in a sliding mode, the sliding path is perpendicular to the ground, and the clamping unit comprises a first clamping part and a second clamping part. The bottom face of the first clamping part is provided with a protrusion matched with a pressing groove in the surface of the oil tank, the second clamping part is provided with a groove matched with the outline of the oil tank, the first clamping part is rotationally arranged on the installation disc, and the second clamping part is rotationally arranged on the installation frame. And through limiting of the first clamping part and the second clamping part, the two half shells are tightly attached, and the situation that in the welding process, dislocation occurs between the shells, and the welding quality is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the field of welding equipment, in particular to a fuel tank welding device. Background Art

[0002] To solve the problem of easy tipping of the fuel tank during transportation and the welding quality of the fuel outlet, such as Figure 5 As shown, the inventor has designed a special-shaped oil tank, which is formed by welding a first shell and a second shell to form a short and fat box body. The top wall of the box body includes a first top wall, a second top wall and a third top wall that descend in a step-like manner. The oil outlet is arranged on the third top wall, so that after the oil tank is filled with oil, the center of gravity is lower than 1 / 2 of the height of the oil tank, making the oil tank more stable to avoid tipping over during transportation. At the same time, indentations are arranged on both sides of the top wall, and the indentations are used as reinforcing ribs (012) to improve the pressure resistance of the oil tank, and the oil outlet nozzle is welded to the oil outlet (011) to avoid the welds between the oil outlet nozzle and the shell from being staggered, which affects the welding quality.

[0003] In order to complete the welding work of the fuel tank, the Chinese patent with the publication number CN116423107A discloses a rotatable welding device for aluminum fuel tank processing, which clamps the fuel tank in the clamping seat by fixing a retractable cylinder on the driving wheel and fixing a clamping seat on the output shaft of the cylinder. The clamping seat is driven by the driving wheel to drive the fuel tank to rotate, thereby completing the welding work of the fuel tank. However, when used for Figure 5 When welding a special-shaped oil tank, due to the special setting of the top wall, when the fixing seat rotates to the top wall downward, the contact area between the top wall and the clamping seat is reduced and the center of gravity is transferred, the first shell and the second shell are misaligned, affecting the welding quality of the oil tank. Utility Model Content

[0004] The utility model aims to provide an oil tank welding device to avoid misalignment between a first shell and a second shell during welding, thereby affecting the welding quality of the oil tank.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an oil tank welding device, including an installation unit and a clamping unit, the installation unit includes a mounting plate and a mounting disk, a mounting frame is fixedly arranged on the mounting plate, the mounting disk is slidably arranged on the mounting frame, and the sliding path is perpendicular to the ground, the clamping unit includes a first clamping part and a second clamping part, the bottom surface of the first clamping part is provided with a protrusion adapted to the pressure groove on the surface of the oil tank, and the second clamping part is provided with a groove adapted to the contour of the oil tank, the first clamping part is rotatably arranged on the mounting disk, and the second clamping part is rotatably arranged on the mounting frame.

[0006] The beneficial effects of this solution are as follows: during welding, one half of the oil tank shell is placed in the groove, and the other half of the shell is placed on the first shell, so that the protrusion of the first shell matches the indentation on the shell surface, and then the mounting plate is moved down to clamp and fix the shells on both sides. Under the action of gravity and the pressure of the mounting plate, as well as the limitation of the first clamping part and the second clamping part, the two half shells are tightly fitted, and welding is performed while rotating until the circumferential welding is completed, and the two half shells are welded into the body of the oil tank, avoiding misalignment between the shells during the welding process, which affects the welding quality.

[0007] Further, the depth of the groove is lower than the height of the welding position of the fuel tank.

[0008] Beneficial effect: The shallower the groove, the easier it is to remove.

[0009] Furthermore, a notch is provided on the side wall of the groove, and the lower edge of the notch is flush with the bottom surface of the groove.

[0010] Beneficial effect: when the oil tank is stuck in the groove, the workpiece can be inserted into between the oil tank and the second clamping part through the notch to lift the oil tank out.

[0011] Furthermore, a motor is arranged on the bottom surface of the mounting plate, a driving gear is fixed to the output shaft of the motor, a driven gear meshing with the driving gear is fixed to the bottom surface of the second clamping portion, and a transmission ratio between the driving gear and the driven gear is greater than or equal to 15.

[0012] Beneficial effect: The second clamping part is driven to rotate by the motor, and then the oil tank is driven to rotate, which reduces manpower. At the same time, the gear is used to reduce speed so that the rotation speed of the clamping unit matches the welding speed, thereby improving the welding quality.

[0013] Furthermore, a hydraulic cylinder is fixedly arranged on the mounting frame, and an output shaft of the hydraulic cylinder is fixedly connected to the mounting plate.

[0014] Beneficial effect: The hydraulic cylinder drives the mounting plate to move up and down, and at the same time applies pressure to the oil tank to avoid misalignment between the first shell and the second shell of the oil tank, which affects the welding quality

[0015] Furthermore, a plurality of guide rods slidably connected to the mounting frame are arranged on the mounting plate, and the guide rods are arranged in a circular array around the output shaft with the axis of the output shaft of the hydraulic cylinder as the center.

[0016] Beneficial effect: the expansion and contraction of the mounting plate is more stable, and the deviation of the mounting plate is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model;

[0018] Figure 2 This is a front view of an embodiment of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the clamping unit of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the mounting plate and mounting frame of the utility model;

[0021] Figure 5 This is a schematic diagram of the oil tank structure that needs to be welded as described in the background technology. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] The figure marks in the drawings of the specification include: oil tank 01, oil outlet 011, reinforcing rib 012, mounting plate 11, mounting column 111, first mounting hole 112, mounting frame 12, second mounting hole 121, first clamping portion 21, protrusion 211, connecting column 212, second clamping portion 22, notch 221, driven gear 222, driving gear 331, mounting plate 32, guide rod 321, hydraulic cylinder 31, motor 33.

[0024] Example

[0025] like Figure 5 As shown, the oil tank 01 includes a first shell and a second shell. The side walls of the first shell and the second shell are both provided with inwardly concave indentations as reinforcing ribs 012. The first shell is provided with an oil outlet 011. An oil outlet nozzle can be welded at the oil outlet 011 to facilitate pouring of oil. Figure 1-4 As shown, Figure 1-4 The tank welding device shown in the figure comprises a mounting unit, a driving unit and a clamping unit. The mounting unit comprises a mounting plate 11, a mounting frame 12 and a mounting plate 32. Figure 4 As shown, a mounting column 111 and a first mounting hole 112 are provided on the mounting plate 11, and a motor 33 is fixed below the mounting plate 11 by bolts. The model of the motor 33 is: SQN71.664A20, and a driving gear 331 is keyed on the output shaft of the motor 33. The output shaft of the motor 33 passes through the first mounting hole 112 to drive the driving gear 331 to rotate.

[0026] like Figure 4 As shown, the mounting frame 12 is welded on the mounting plate 11 and is provided with a second mounting hole 121, and a hydraulic cylinder 31 is installed on the second mounting hole 121 by bolts. The output shaft of the hydraulic cylinder 31 is welded or threaded with the mounting plate 32. The model of the hydraulic cylinder 31 is: MOB-32×50, and three guide rods 321 are welded on the mounting plate 32. The guide rods 321 are slidably arranged on the mounting frame 12. The guide rods 321 take the axis center of the output shaft of the hydraulic cylinder 31 as the center of the circle, and are arranged in a circular array around the output shaft to ensure that the mounting plate 32 is smoothly lifted and lowered.

[0027] like Figure 3 As shown, the clamping unit includes a first clamping part 21 and a second clamping part 22. The top surface of the first clamping part 21 is provided with a connecting column 212, which is rotatably arranged on the mounting plate 32. The bottom surface of the first clamping part 21 is provided with a protrusion 211 that matches the surface groove of the oil tank 01, and the oil tank 01 shell is positioned by the cooperation between the protrusion 211 and the indentation. The second clamping part 22 is provided with a groove that matches the contour of the oil tank 01, the depth of the groove is lower than the height of the welding position of the oil tank 01, and the side wall of the groove is provided with a notch 221, the position of the notch 221 matches the oil outlet 011, the lower edge of the notch 221 is flush with the bottom surface of the groove, and a driven gear 222 is welded at the bottom, as shown in FIG. Figure 2 As shown, the driven gear 222 is meshed with the driving gear 331, and the transmission ratio of the driven gear 222 to the driving gear 331 is greater than 15. The second clamping part 22 is rotatably set on the mounting column 111, so that the speed of the motor 33 is reduced through the gear, so that the speed of the second clamping part 22 is adapted to the welding speed.

[0028] The specific implementation process is as follows:

[0029] When in use, first place the first shell provided with the oil outlet 011 in the groove of the second clamping part 22, so that the oil outlet 011 is located at the notch 221, and the reinforcing rib 012 of the second shell matches the protrusion 211 of the first clamping part 21, and the output shaft of the hydraulic cylinder 31 is extended, driving the mounting plate 32 to move downward, and then driving the second shell of the oil tank 01 to move downward until the edge of the first shell and the second shell match, stop the hydraulic cylinder 31, start the motor 33, the motor 33 rotates, and drives the driven gear 222 through the driving gear 331, and then drives the mounting plate 32 to rotate, so that the operator can directly perform ring welding on the oil tank 01, and weld the oil nozzle at the position of the oil nozzle through the notch, after welding is completed, the output shaft of the hydraulic cylinder 31 is shortened, driving the first clamping part 21 to move upward, and the operator can take out the welded oil tank 01.

[0030] When the oil tank 01 is too large, it is easy for the oil tank 01 to get stuck in the groove when it is taken out. The operator can use a tool to reach into the notch 221 to provide an additional fulcrum to lift the oil tank 01 out.

[0031] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that the technical means for solving the problems in the above-mentioned embodiments of the utility model can be used in combination to solve multiple technical problems at the same time. For those skilled in the art, several deformations and improvements can be made without departing from the technical solution of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Fuel tank welding device, characterized in that: It includes an installation unit and a clamping unit. The installation unit includes a mounting plate and a mounting disk. A mounting frame is fixedly arranged on the mounting plate. The mounting disk is slidably arranged on the mounting frame. The sliding path is perpendicular to the ground. The clamping unit includes a first clamping part and a second clamping part. The bottom surface of the first clamping part is provided with a protrusion adapted to the pressure groove on the surface of the oil tank. The second clamping part is provided with a groove adapted to the contour of the oil tank. The first clamping part is rotatably arranged on the mounting disk, and the second clamping part is rotatably arranged on the mounting frame.

2. The fuel tank welding device according to claim 1, characterized in that: The depth of the groove is lower than the height of the tank welding position.

3. The fuel tank welding device according to claim 2, characterized in that: A notch is arranged on the side wall of the groove, and the lower edge of the notch is flush with the bottom surface of the groove.

4. The fuel tank welding device according to claim 1, characterized in that: A motor is arranged on the bottom surface of the mounting plate, a driving gear is fixed on the output shaft of the motor, a driven gear meshing with the driving gear is fixed on the bottom surface of the second clamping part, and a transmission ratio between the driving gear and the driven gear is greater than or equal to 15.

5. The fuel tank welding device according to claim 1, characterized in that: A hydraulic cylinder is fixedly arranged on the mounting frame, and an output shaft of the hydraulic cylinder is fixedly connected to the mounting plate.

6. The fuel tank welding device according to claim 5, characterized in that: The installation plate is provided with a plurality of guide rods which are slidably connected with the installation frame. The guide rods are arranged in a circular array around the output shaft with the axis center of the output shaft of the hydraulic cylinder as the center of the circle.

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