Fuel tank testing fixture

Abstract

The utility model discloses a fuel tank testing fixture which comprises a testing fixture platform (2) which is provided with a testing assembly (1). The detection assembly (1) comprises hole site detection assemblies (101) arranged on the two sides of the fuel tank (5), a key shape detection assembly (102) arranged around the fuel tank (5), a chuck detection assembly (103) arranged on the side edge of the fuel tank (5) and a fuel inlet detection assembly (104) arranged at the end of the fuel tank (5), the fuel tank (5) is placed on the detection tool platform (2), and the fuel tank (5) is detected through the detection assembly (1). The detection device can directly, quickly and effectively detect the positions and apertures of the positioning holes and the mounting holes, can also detect the key contour, the pump opening position and the oil inlet position of the fuel tank (5), is more comprehensive in detection result and high in detection efficiency, can effectively improve the accuracy of detection of various data of a product, and reduces the risk of unqualified products.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts inspection tooling, and in particular, relates to a fuel tank inspection tool. Background Art

[0002] Automobile fuel tank is one of the important parts of automobiles. Fuel tanks can be divided into plastic tanks and metal tanks according to materials. Metal tanks have the characteristics of zero permeability and good electrostatic shielding, so they occupy a certain share in the market. Metal tanks are generally composed of upper shell, lower shell, oil pump pressure plate, oil inlet pipe and other accessories. Each component is formed into a whole through welding processes such as seam welding, brazing, spot welding, resistance welding, etc. Due to uncontrollable defects such as thermal deformation and dislocation during welding, the shape and position errors between the accessories are large when the product is off the line; the key shape boundary of the fuel tank will affect the safety gap with the surrounding parts after assembly. It is difficult to make accurate inspections of the shape dimensions and the position of peripheral accessories when using ordinary measuring tools. In order to reduce the evaporative emissions of gasoline and meet the requirements of the National VI regulations, the oil pump is usually fixed with a pressure plate structure. The pressure plate often deforms and twists during welding, resulting in failure of the oil pump flange seal, which is difficult to inspect and control in production.

[0003] The patent number is 201921751519.8, and a public specification published on June 30, 2020 discloses a vehicle fuel tank inspection fixture, a base and a inspection fixture body installed on the base. The vehicle fuel tank inspection fixture also includes an annular groove corresponding to the open end of the fuel tank, constructed on the base, and a buffer pad with a top protruding from the base installed in the annular groove, and the buffer pad is connected to the bottom of the annular groove through a plurality of first springs arranged at intervals; two guide plates are arranged on both sides of the inspection body, and the spacing between the two guide plates is adjustable. The fuel tank hoisted by the sling is placed on the buffer pad through the guidance of the two guide plates, and the fuel tank can compress each first spring and abut against the top of the inspection fixture body due to the downward force. The vehicle fuel tank inspection fixture described in the utility model can place the fuel tank on the buffer pad by setting the guide plate, and the setting of the buffer pad can reduce the scratches on the fuel tank.

[0004] In the above-mentioned prior art, although the scratches on the fuel tank are reduced by providing a buffer pad and the like, the device has few means for detecting the fuel tank and can only detect part of the appearance, but cannot achieve the effect of completely detecting various data of the fuel tank, which may result in some structural failures that cannot be detected. Summary of the invention

[0005] The present invention aims to provide a fuel tank inspection tool with more accurate inspection.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a fuel tank inspection fixture, including a inspection fixture platform, on which a detection component is provided, and the detection component includes a hole position inspection component arranged on both sides of the fuel tank, a key shape inspection component arranged around the fuel tank, a chuck inspection component arranged on the side of the fuel tank, and an oil inlet inspection component arranged at the end of the fuel tank, and the fuel tank is placed on the inspection fixture platform.

[0007] The hole position inspection assembly comprises a clamping clamp arranged on a check fixture platform. A positioning base and a mounting base are arranged on the check fixture platform. A positioning pin is arranged at the end of the positioning base, and a latch is arranged on the mounting base.

[0008] The positioning pin passes through the positioning hole on the fuel tank, the latch passes through the mounting hole on the fuel tank, the positioning pin and the positioning base are located on both sides of the fuel tank, and the latch and the mounting base are located at both ends of the fuel tank.

[0009] The key shape inspection assembly comprises a first profiling block, a second profiling block and a third profiling block arranged on a gauge platform, and a first profiling plate, a second profiling plate and a third profiling plate are arranged above the fuel tank.

[0010] The inspection tool platform is provided with a first support, a second support and a third support. The first support is provided with a first movable plate connected to the first profiling plate, the second support is provided with a second movable plate connected to the second profiling plate, and the third support is provided with a third movable plate connected to the third profiling plate.

[0011] The first profiling block, the second profiling block and the third profiling block are fitted with the bottom of the fuel tank.

[0012] The chuck inspection assembly comprises a detection disc arranged on the fuel tank, a fixing seat is arranged on the inspection tool platform, and a flip plate connected to the detection disc is arranged at the end of the fixing seat.

[0013] The detection disc is divided into a disc connected to the flip plate and a claw arranged on the edge of the disc, a groove is arranged on the inner side of the claw, an annular groove is arranged at the oil pump port of the fuel tank, and a clamping block matching the groove is arranged on the annular groove.

[0014] The oil inlet inspection assembly includes a main oil inlet inspection sliding pin and a spare oil inlet inspection sliding pin arranged on the side of the fuel tank, and the inspection tool platform is provided with a main seat connected to the main oil inlet inspection sliding pin and a spare seat connected to the spare oil inlet inspection sliding pin.

[0015] A support frame is provided at the bottom of the inspection tool platform, and movable casters are provided at the bottom of the support frame.

[0016] The technical effect of the present invention is that through the detection component, the position and aperture of the positioning hole and the mounting hole can be directly, quickly and effectively detected, and the key external contour, pump port position and fuel inlet position of the fuel tank can also be detected. Such detection results are more comprehensive and the detection efficiency is high, which can effectively improve the accuracy of the detection of various product data and reduce the risk of unqualified products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 This is a structural schematic diagram of a fuel tank inspection fixture of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of a fuel tank of a fuel tank inspection fixture;

[0020] Figure 3 for Figure 1 A schematic diagram of a hole position inspection component of a fuel tank inspection fixture;

[0021] Figure 4 for Figure 1 A schematic diagram of a positioning base of a fuel tank inspection fixture;

[0022] Figure 5 for Figure 1 A schematic diagram of a mounting base of a fuel tank inspection fixture;

[0023] Figure 6 for Figure 1 A schematic diagram of the key appearance inspection components of a fuel tank inspection fixture;

[0024] Figure 7 for Figure 1 A schematic diagram of a chuck inspection assembly of a fuel tank inspection fixture;

[0025] Figure 8 for Figure 1 A schematic diagram of a test plate of a fuel tank inspection fixture;

[0026] Fig. 9 for Figure 1 Schematic diagram of the fuel inlet inspection component of a fuel tank inspection fixture.

[0027] The following are marked in the figure: 1, detection component; 2, inspection fixture platform; 3, support frame; 4, movable caster; 5, fuel tank; 101, hole position inspection component; 101a, clamping clamp; 101b, positioning base; 101b1, positioning pin; 101c, latch; 101d, mounting base; 102, key shape inspection component; 102a, first profiling block; 102b, second profiling block; 102c, third profiling block; 102d, first profiling plate; 102e, second profiling plate; 102f, third profiling plate; 102d1, The first support; 102d2, the first movable plate; 102e1, the second support; 102e2, the second movable plate; 102f1, the third support; 102f2, the third movable plate; 103, the chuck inspection assembly; 103a, the inspection disk; 1031, the circular disk; 1032, the claw; 1033, the slot; 103b, the fixed seat; 103c, the flip plate; 103d, the annular groove; 103e, the block; 104, the oil inlet inspection assembly; 104a, the main oil inlet inspection pin; 104b, the spare oil inlet inspection pin. DETAILED DESCRIPTION

[0028] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0029] See also Figure 1-9 A fuel tank inspection fixture comprises a inspection fixture platform 2, on which a detection assembly 1 is arranged, wherein the detection assembly 1 comprises a hole position inspection assembly 101 arranged on both sides of a fuel tank 5, a key shape inspection assembly 102 arranged around the fuel tank 5, a chuck inspection assembly 103 arranged on the side of the fuel tank 5, and a fuel inlet inspection assembly 104 arranged at the end of the fuel tank 5, wherein the fuel tank 5 is placed on the inspection fixture platform 2.

[0030] The fuel tank 5 is inspected by the detection component 1. The hole position inspection component 101 can detect the correctness of the inner diameter and hole position of the positioning hole and the mounting hole of the fuel tank 5 assembly. The key shape inspection component 102 can inspect the correctness of the key shape dimensions of the fuel tank 5 assembly to prevent interference problems caused by shape deviations. The chuck inspection component 103 can detect the position of the oil pump fixing detection plate 103a at the top of the fuel tank 5 and the correctness of the width size of the claw 1032 on the detection plate 103a. The oil inlet inspection component 104 can detect the conformity of the main oil inlet position and the inner diameter, and the correctness of the spare oil inlet position.

[0031] The hole position inspection assembly 101 includes a clamp 101a disposed on a gauge platform 2. A positioning base 101b and a mounting base 101d are disposed on the gauge platform 2. A positioning pin 101b1 is disposed at the end of the positioning base 101b. A latch pin 101c is disposed on the mounting base 101d.

[0032] The movement of the positioning pin 101b1 and the plug 101c can be controlled by the clamping pliers 101a, so that the positioning pin 101b1 is inserted into the positioning base 101b, and the plug 101c is inserted into the mounting base 101d. While facilitating the operation of the operator, the clamping pliers 101a can be used to position the positioning pin 101b1 and the plug 101c, thereby reducing the occurrence of deviation.

[0033] The positioning pin 101b1 passes through the positioning hole on the fuel tank 5, and the latch pin 101c passes through the mounting hole on the fuel tank 5. The positioning pin 101b1 and the positioning base 101b are located on both sides of the fuel tank 5, and the latch pin 101c and the mounting base 101d are located at both ends of the fuel tank 5.

[0034] The position and inner diameter of the positioning hole are detected by using the positioning pin 101b1 and the positioning base 101b, and the position and inner diameter of the mounting hole are detected by using the plug pin 101c and the mounting base 101d. The positioning hole and the three mounting holes of the fuel tank 5 are detected. If the positioning pin 101b1 can be inserted into the pin hole of the positioning base 101b, and the plug pin 101c can be inserted into the pin hole of the mounting base 101d, then the positioning hole and the three mounting holes of the fuel tank 5 are qualified.

[0035] The key shape inspection assembly 102 includes a first profiling block 102a, a second profiling block 102b and a third profiling block 102c arranged on the gauge platform 2, and a first profiling plate 102d, a second profiling plate 102e and a third profiling plate 102f are arranged above the fuel tank 5.

[0036] Three groups of profiling blocks are arranged above the inspection fixture platform 2, and can be used to detect the bottom profile of the fuel tank 5. Three groups of profiling plates can be used to detect the top profile of the fuel tank 5 to detect the shape of the fuel tank 5. If the three groups of profiling plates and the three groups of profiling blocks have no interference with the upper and lower profiles of the fuel tank 5, the size is qualified, otherwise it is unqualified.

[0037] The inspection fixture platform 2 is provided with a first support 102d1, a second support 102e1 and a third support 102f1. The first support 102d1 is provided with a first movable plate 102d2 connected to the first profiling plate 102d, the second support 102e1 is provided with a second movable plate 102e2 connected to the second profiling plate 102e, and the third support 102f1 is provided with a third movable plate 102f2 connected to the third profiling plate 102f.

[0038] The three movable plates are used to drive the three profiling plates to rotate. In this way, when placing the fuel tank 5, the three profiling plates can be rotated to facilitate the placement of the fuel tank 5 and avoid obstruction. After the fuel tank 5 is placed, the profiling plates can be directly rotated to the upper surface of the fuel tank 5, so as to detect the profile of the top of the fuel tank 5.

[0039] The first profiling block 102a, the second profiling block 102b and the third profiling block 102c are in contact with the bottom of the fuel tank 5; the fuel tank 5 can be directly placed on the three profiling blocks to detect the lower surface of the fuel tank 5.

[0040] The chuck inspection assembly 103 includes a detection disk 103a arranged on the fuel tank 5, a fixing seat 103b is provided on the inspection fixture platform 2, and a flip plate 103c connected to the detection disk 103a is provided at the end of the fixing seat 103b; the detection disk 103a is used to detect the fixed position of the pump port, and the flip plate 103c can be used to drive the detection disk 103a to rotate, thereby avoiding obstruction when the fuel tank 5 is placed.

[0041] The detection disk 103a is divided into a circular disk 1031 connected to the flip plate 103c and a claw 1032 arranged on the edge of the circular disk 1031, and a groove 1033 is provided on the inner side of the claw 1032. An annular groove 103d is provided at the oil pump port of the fuel tank 5, and a block 103e matching the groove 1033 is provided on the annular groove 103d.

[0042] Through the mutual cooperation between the clamping groove 1033 on the clamping claw 1032 and the clamping block 103e, if all the clamping claws 1032 can cooperate with the clamping block 103e and be placed in the annular groove 103d, the inspection disk 103a is qualified; if the clamping claw 1032 and the clamping block 103e interfere with each other, it is unqualified.

[0043] The oil inlet inspection assembly 104 includes a main oil inlet inspection pin 104a and a spare oil inlet inspection pin 104b arranged on the side of the fuel tank 5, and the inspection fixture platform 2 is provided with a main seat connected to the main oil inlet inspection pin 104a and a spare seat connected to the spare oil inlet inspection pin 104b.

[0044] If the main oil inlet detection pin 104a can be smoothly inserted into the main oil inlet, the main oil inlet position meets the requirements and the inner diameter is qualified; if the spare oil inlet detection pin 104b can be smoothly inserted into the spare oil inlet, the spare oil inlet position meets the requirements, otherwise it is unqualified. Both pins are controlled to move by springs.

[0045] A support frame 3 is provided at the bottom of the inspection tool platform 2, and movable casters 4 are provided at the bottom of the support frame 3 to facilitate the movement of the equipment.

[0046] The technical effect of the present invention is that through the detection component 1, the position and aperture of the positioning hole and the mounting hole can be directly, quickly and effectively detected, and the key external contour, pump port position and fuel inlet position of the fuel tank 5 can also be detected. Such a detection result is more comprehensive and has high detection efficiency, which can effectively improve the accuracy of the detection of various product data and reduce the risk of unqualified products.

[0047] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A fuel tank inspection fixture, comprising an inspection fixture platform (2), characterized in that: The inspection tool platform (2) is provided with an inspection component (1), the inspection component (1) comprising a hole position inspection component (101) arranged on both sides of the fuel tank (5), a key shape inspection component (102) arranged around the fuel tank (5), a chuck inspection component (103) arranged on the side of the fuel tank (5) and an oil inlet inspection component (104) arranged at the end of the fuel tank (5), and the fuel tank (5) is placed on the inspection tool platform (2).

2. A fuel tank inspection fixture according to claim 1, characterized in that: The hole position inspection component (101) comprises a clamp (101a) arranged on a gauge platform (2); a positioning base (101b) and a mounting base (101d) are provided on the gauge platform (2); a positioning pin (101b1) is provided at the end of the positioning base (101b); and a latch pin (101c) is provided on the mounting base (101d).

3. A fuel tank inspection fixture according to claim 2, characterized in that: The positioning pin (101b1) passes through the positioning hole on the fuel tank (5), the latch pin (101c) passes through the mounting hole on the fuel tank (5), the positioning pin (101b1) and the positioning base (101b) are located on both sides of the fuel tank (5), and the latch pin (101c) and the mounting base (101d) are located at both ends of the fuel tank (5).

4. A fuel tank inspection tool according to claim 1, characterized in that: The key shape inspection component (102) comprises a first profiling block (102a), a second profiling block (102b) and a third profiling block (102c) arranged on a gauge platform (2), and a first profiling plate (102d), a second profiling plate (102e) and a third profiling plate (102f) are arranged above the fuel tank (5).

5. A fuel tank inspection tool according to claim 4, characterized in that: The inspection tool platform (2) is provided with a first support (102d1), a second support (102e1) and a third support (102f1); the first support (102d1) is provided with a first movable plate (102d2) connected to the first profiling plate (102d); the second support (102e1) is provided with a second movable plate (102e2) connected to the second profiling plate (102e); and the third support (102f1) is provided with a third movable plate (102f2) connected to the third profiling plate (102f).

6. A fuel tank inspection tool according to claim 4, characterized in that: The first profiling block (102a), the second profiling block (102b) and the third profiling block (102c) are fitted to the bottom of the fuel tank (5).

7. A fuel tank inspection tool according to claim 1, characterized in that: The chuck inspection assembly (103) comprises a detection disk (103a) arranged on a fuel tank (5); a fixing seat (103b) is arranged on the inspection tool platform (2); and a flip plate (103c) connected to the detection disk (103a) is arranged at the end of the fixing seat (103b).

8. A fuel tank inspection fixture according to claim 7, characterized in that: The detection disk (103a) is divided into a disk (1031) connected to the flip plate (103c) and a claw (1032) arranged on the edge of the disk (1031); a clamping groove (1033) is provided on the inner side of the claw (1032); an annular groove (103d) is provided at the oil pump port of the fuel tank (5); and a clamping block (103e) matching the clamping groove (1033) is provided on the annular groove (103d).

9. A fuel tank inspection tool according to claim 1, characterized in that: The oil inlet inspection assembly (104) comprises a main oil inlet inspection sliding pin (104a) and a spare oil inlet inspection sliding pin (104b) arranged on the side of the fuel tank (5); the inspection tool platform (2) is provided with a main seat connected to the main oil inlet inspection sliding pin (104a) and a spare seat connected to the spare oil inlet inspection sliding pin (104b).

10. A fuel tank inspection tool according to claim 1, characterized in that: A support frame (3) is provided at the bottom of the inspection tool platform (2), and movable casters (4) are provided at the bottom of the support frame (3).

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