Positioning tool for processing automobile fuel tank

Abstract

The utility model discloses a positioning frock for automobile fuel tank processing, including machine table, the machine table bottom end symmetry is provided with mounting panel, be connected with drive mechanism on the mounting panel, the symmetry is provided with clamping seat on drive mechanism, and two groups clamping seat all install compacting mechanism on, and the opposite side below of two groups clamping seat is provided with cooling mechanism. Through setting cooling mechanism, can in clamping seat to fuel tank clamping positioning welding process, the outside gas supply pipeline passes through the external interface in cooling mechanism and injects cooling gas into the empty slot, and the cooling gas is blown to the fuel tank in the welding process through the through -hole on the temperature guide plate, thereby realizes the cooling of fuel tank, avoids the thermal expansion phenomenon of fuel tank because of the temperature rise caused by welding, avoids the change positioning size, prevents the processing deviation, improves the processing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of automotive fuel tank processing technology, and in particular to a positioning fixture for automotive fuel tank processing. Background Technology

[0002] During the manufacturing process of automotive fuel tanks, precise positioning of the fuel tank is required to ensure the accuracy and quality of subsequent processing steps. When welding the fuel inlet pipe and vent pipe of the automotive fuel tank to the fuel tank shell, the welding quality requirements are very strict, and the spatial dimensions of the fuel inlet pipe and vent pipe must be guaranteed.

[0003] Existing automotive fuel tanks require clamping with positioning fixtures during manufacturing to facilitate subsequent welding at the joints. However, during welding, the fuel tank is prone to thermal expansion and contraction due to high-temperature radiation, which can alter the positioning dimensions, leading to manufacturing deviations and reduced precision. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a positioning fixture for processing automotive fuel tanks. This fixture can cool the fuel tank during use, preventing thermal expansion caused by welding, avoiding changes in positioning dimensions, preventing processing deviations, and improving processing accuracy.

[0005] To achieve the above-mentioned objectives, this utility model adopts the following technical solution: A positioning fixture for processing automotive fuel tanks includes a machine base. The bottom of the machine base is symmetrically provided with mounting plates. A drive mechanism is connected to the mounting plates. Clamping seats are symmetrically provided on the drive mechanism. Each set of clamping seats is equipped with a pressing mechanism. A cooling mechanism is provided below the opposite sides of the two sets of clamping seats.

[0006] Preferably, the cooling mechanism includes a slot formed on the clamping seat, an external interface communicating with the slot is installed on one side of the clamping seat, and a temperature-conducting plate is installed in the slot, with a through hole formed on the temperature-conducting plate communicating with the slot.

[0007] Preferably, the driving mechanism includes a drive motor fixed on one of the mounting plates, the output end of the drive motor is connected to a bidirectional lead screw, and guide rods are symmetrically arranged on the outside of the bidirectional lead screw. Slides are connected to the outside of both the bidirectional lead screw and the guide rods, and the clamping seat is fixed to the top of the slide.

[0008] Preferably, the clamping mechanism includes a rotary motor fixed on the clamping seat, the output end of the rotary motor is connected to a ball screw, guide rods are symmetrically arranged on the outer side of the ball screw, and a sliding seat is connected to the outer side of both the ball screw and the guide rods. A pressure plate is installed on one side of the sliding seat, and the connection between the pressure plate and the sliding seat is a triangular structure.

[0009] Preferably, the clamping seat is slidably connected to the top of the machine tool, and the top of the machine tool is provided with a sliding groove adapted to the clamping seat.

[0010] Preferably, the connection between the temperature-conducting plate and the clamping seat is a boss-shaped structure, and the temperature-conducting plate is elastic.

[0011] By adopting the above technical solution, this utility model has the following beneficial technologies: By setting up a cooling mechanism, during the clamping and positioning welding process of the oil tank, the external air supply pipe can inject cooling gas into the empty slot through the external interface inside the cooling mechanism. The cooling gas is then blown onto the oil tank during the welding process through the through holes on the temperature guide plate, thereby cooling the oil tank, preventing thermal expansion caused by the temperature rise during welding, avoiding changes in positioning dimensions, preventing processing deviations, and improving processing accuracy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a schematic diagram showing the connection relationship between the mounting plate, drive mechanism, clamping seat, and clamping mechanism in this utility model; Figure 4 This is a schematic diagram showing the connection relationship between the clamping seat and the cooling mechanism in this utility model.

[0013] The annotations in the attached figures are explained as follows: 1. Machine base; 2. Mounting plate; 3. Drive mechanism; 301. Drive motor; 302. Double-acting lead screw; 303. Guide rod; 304. Slide seat; 4. Clamping mechanism; 401. Rotary motor; 402. Ball screw; 403. Guide rod; 404. Slide seat; 405. Pressure plate; 5. Cooling mechanism; 501. Empty slot; 502. External interface; 503. Temperature guiding plate; 504. Through hole; 6. Slide groove; 7. Clamping seat. Detailed Implementation

[0014] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0015] like Figures 1-4 As shown in the figure, the positioning fixture for processing automotive fuel tanks provided in this embodiment includes a machine base 1. The bottom end of the machine base 1 is symmetrically provided with mounting plates 2, which are used to support the drive mechanism 3. The drive mechanism 3 is connected to the mounting plate 2. The drive mechanism 3 is symmetrically provided with clamping seats 7. The clamping seats 7 can clamp the fuel tank on both sides, and each of the two sets of clamping seats 7 is equipped with a pressing mechanism 4. A cooling mechanism 5 is provided below the opposite side of the two sets of clamping seats 7.

[0016] The cooling mechanism 5 includes a slot 501 formed on the clamping seat 7 to facilitate the flow of cooling gas in the slot 501. An external interface 502 connected to the slot 501 is installed on one side of the clamping seat 7. An external air supply pipe is connected to the slot 501 through the external interface 502 to facilitate the entry of cooling gas. A temperature guide plate 503 is installed in the slot 501. After the cooling gas enters the slot 501, it will cause the temperature of the temperature guide plate 503 to decrease, thereby reducing the temperature of the oil tank. The temperature guide plate 503 has a through hole 504 formed on it to communicate with the slot 501, so that the cooling gas can be blown to the oil tank through the through hole 504 to cool it down.

[0017] The drive mechanism 3 includes a drive motor 301 fixed on one of the mounting plates 2, which facilitates the drive motor 301 to drive the bidirectional lead screw 302 to rotate. The output end of the drive motor 301 is connected to the bidirectional lead screw 302, which can drive the two sets of slides 304 to move synchronously. Guide rods 303 are symmetrically arranged on the outside of the bidirectional lead screw 302. The guide rods 303 can ensure the stability of the slides 304 during movement. Slides 304 are connected to the outside of both the bidirectional lead screw 302 and the guide rods 303. The slides 304 can drive the two sets of clamping seats 7 to move simultaneously, thereby achieving the clamping and positioning of the oil tank. The clamping seats 7 are fixed on the top of the slides 304.

[0018] The clamping mechanism 4 includes a rotary motor 401 fixed on the clamping seat 7, facilitating the rotation of two sets of rotary motors 401 driving ball screws 402. Both sets of rotary motors 401 are connected to an external control mechanism. The frequency converter within the control mechanism can be used to adjust the motor speed and ensure synchronous operation between the motors. By precisely controlling the output frequency and voltage, the frequency converter can ensure that the two motors maintain the same speed during operation and allow the motors to maintain synchronization even when the load changes. The output end of the rotary motor 401 is connected to the ball screw 402. 02 The rotating motor 401 drives the sliding seat 404 to move. The ball screw 402 is symmetrically provided with guide rods 403 on its outer side. The guide rods 403 can guide the movement of the sliding seat 404. The ball screw 402 and the guide rods 403 are both connected to the sliding seat 404. The sliding seat 404 can drive the pressure plate 405 to rise and fall. The pressure plate 405 is installed on one side of the sliding seat 404. The oil tank can be pressed down and fixed by the rise and fall of the pressure plate 405. The connection between the pressure plate 405 and the sliding seat 404 is a triangular structure.

[0019] The clamping seat 7 is slidably connected to the top of the machine base 1, and the top of the machine base 1 is provided with a sliding groove 6 that is adapted to the clamping seat 7, so that the clamping seat 7 can move horizontally along the machine base 1 through the sliding groove 6.

[0020] The connection between the temperature guide plate 503 and the clamping seat 7 is a boss-shaped structure, and the temperature guide plate 503 is elastic, which facilitates clamping the oil tank through contact with the temperature guide plate 503.

[0021] This utility model discloses a positioning fixture for processing automotive fuel tanks. Its working principle is as follows: In practical use, the fuel tank is placed on the machine base 1. At this time, the drive mechanism 3 on the mounting plate 2 operates. The drive motor 301 within the drive mechanism 3 drives the bidirectional lead screw 302 to rotate. The bidirectional lead screw 302 can drive the slide block 304 to move horizontally along the guide rod 303, thereby driving two sets of clamping seats 7 to move horizontally along the machine base 1 through the slide groove 6. The two sets of clamping seats 7 clamp and position the fuel tank. After clamping is completed, the rotating motor 401 within the clamping mechanism 4 drives the ball screw 402 to rotate. The ball screw 402 can drive the sliding seat 404 to move along the guide rod 403, which in turn drives the pressure plate 405 to press down and fix the top of the oil tank, facilitating the stability of the oil tank during welding. During welding, the external air supply pipe injects cooling gas into the empty groove 501 through the external interface 502 in the cooling mechanism 5. The cooling gas is blown onto the oil tank during welding through the through hole 504 on the temperature guide plate 503, thereby cooling the oil tank, preventing thermal expansion caused by the temperature rise of the oil tank due to welding, avoiding changes in positioning dimensions, preventing processing deviations, and improving processing accuracy.

[0022] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.

Claims

1. A positioning fixture for processing automotive fuel tanks, comprising a machine base (1), wherein mounting plates (2) are symmetrically arranged at the bottom end of the machine base (1), characterized in that: The mounting plate (2) is connected to a drive mechanism (3), and clamping seats (7) are symmetrically arranged on the drive mechanism (3). Both sets of clamping seats (7) are equipped with pressing mechanisms (4), and cooling mechanisms (5) are arranged below the opposite sides of the two sets of clamping seats (7).

2. The positioning fixture for machining an automotive fuel tank according to claim 1, characterized in that: The cooling mechanism (5) includes a slot (501) opened on the clamping seat (7), an external interface (502) connected to the slot (501) is installed on one side of the clamping seat (7), and a temperature guiding plate (503) is installed in the slot (501), and a through hole (504) connected to the slot (501) is formed on the temperature guiding plate (503).

3. The positioning fixture for machining an automotive fuel tank according to claim 1, characterized in that: The drive mechanism (3) includes a drive motor (301) fixed on one of the mounting plates (2). The output end of the drive motor (301) is connected to a bidirectional lead screw (302), and guide rods (303) are symmetrically arranged on the outside of the bidirectional lead screw (302). Slides (304) are connected to the outside of both the bidirectional lead screw (302) and the guide rods (303). The clamping seat (7) is fixed to the top of the slide (304).

4. The positioning fixture for machining an automotive fuel tank according to claim 1, characterized in that: The clamping mechanism (4) includes a rotary motor (401) fixed on the clamping seat (7). The output end of the rotary motor (401) is connected to a ball screw (402). Guide rods (403) are symmetrically arranged on the outer side of the ball screw (402). Sliding seats (404) are connected to the outer sides of both the ball screw (402) and the guide rods (403). A pressure plate (405) is installed on one side of the sliding seat (404), and the connection between the pressure plate (405) and the sliding seat (404) is a triangular structure.

5. A positioning fixture for machining an automotive fuel tank according to claim 1, characterized in that: The clamping seat (7) is slidably connected to the top of the machine base (1), and the top of the machine base (1) is provided with a sliding groove (6) that is compatible with the clamping seat (7).

6. A positioning fixture for machining an automotive fuel tank according to claim 2, characterized in that: The connection between the temperature-conducting plate (503) and the clamping seat (7) is a boss-shaped structure, and the two sets of temperature-conducting plates (503) have elasticity on opposite sides.

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