Automobile oil pipe joint quality inspection jig

Abstract

The utility model provides an automobile oil pipe joint quality inspection jig, which is used for detecting the aperture, the height and the parallelism of an oil pipe joint, the oil pipe joint comprises a vertical shaft part and a transverse shaft part which is arranged at the top of the vertical shaft part and is vertical to the vertical shaft part, the bottom of the vertical shaft part is provided with a vertical shaft hole, two ends of the transverse shaft part are respectively provided with a transverse shaft end face, and the transverse shaft end face is provided with a vertical shaft hole. Comprising a base and a plurality of detection columns arranged on the base, the plurality of detection columns are uniformly arranged along a straight line and are vertically arranged on the base, the detection columns are matched with the vertical shaft holes, and the distance between the axes of every two adjacent detection columns is equal to the distance between the transverse shaft end faces at the two ends of the transverse shaft part; therefore, the height of the automobile oil pipe joint, the aperture of the vertical shaft hole in the vertical shaft part and the parallelism of the transverse shaft end faces at the two ends of the transverse shaft part can be simultaneously detected, the operation is convenient, the detection efficiency can be greatly improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of mechanical manufacturing, in particular to a quality inspection jig for automobile oil pipe joints. Background Art

[0002] Among the system components of a car, the fuel system is one of the most important parts. It is one of the key parts for the normal operation of the engine and is mainly responsible for providing clean and appropriate fuel to the engine. In the fuel system, Figure 1 、 Figure 2 The fuel pipe joint shown is one of the key components. The fuel pipe joint has a three-way structure, including a vertical axis portion and a horizontal axis portion located on the top of the vertical axis portion. It is mainly used to connect the fuel lines between different components to ensure that the fuel can flow smoothly in the system. Therefore, its quality is crucial to the performance, safety and service life of the vehicle.

[0003] In the current production of automotive fuel pipe joints, in order to ensure the processing quality of fuel pipe joints, in addition to setting corresponding quality inspection items after different mechanical processing steps (such as cutting, turning, drilling, milling, etc.), a comprehensive and integrated quality inspection of the fuel pipe joints is required when the final production of the fuel pipe joints is completed. This includes testing the aperture size, height size, and parallelism of the fuel pipe joints.

[0004] In the prior art, the aperture size, height size and parallelism detection of oil pipe joints generally require different employees to use different devices to perform separate inspections. For example, the aperture size and height size are generally measured manually using a vernier caliper, while the parallelism inspection generally uses a micrometer (verb indicator) in conjunction with a precision platform. That is, a precision platform is used as a reference surface, the oil pipe joint to be tested is placed on it, and the micrometer probe is adjusted to contact the surface to be tested. The micrometer is moved along the surface to be tested, and the changes in readings at different positions are recorded. The parallelism between the two surfaces is judged based on the changes in readings. The above quality inspection method not only wastes manpower and is inefficient, but also easily causes false detection, missed detection, etc., which is not conducive to product quality control. Utility Model Content

[0005] This utility model provides a quality inspection jig for automobile oil pipe joints, which can quickly complete the inspection of the aperture size, height size and parallelism of automobile oil pipe joints, improve inspection efficiency and reduce labor costs. The specific technical solution is as follows:

[0006] A quality inspection jig for automobile oil pipe joints, used for detecting the aperture, height and parallelism of oil pipe joints, the oil pipe joint comprising a vertical axis portion and a horizontal axis portion located on top of the vertical axis portion and perpendicular to the vertical axis portion, a vertical axis hole being provided at the bottom of the vertical axis portion, and horizontal axis end surfaces being provided at both ends of the horizontal axis portion, comprising a base and a plurality of inspection columns provided on the base, the plurality of inspection columns being evenly arranged along a straight line and vertically provided on the base, the inspection columns being adapted to the vertical axis hole, and the distance between the axes of two adjacent inspection columns being equal to the distance between the horizontal axis end surfaces at both ends of the horizontal axis portion.

[0007] Furthermore, the height of the detection column is adjustable.

[0008] Furthermore, the distance between the detection columns is adjustable.

[0009] Furthermore, the detection column is detachably mounted on the base.

[0010] Furthermore, the detection column can move laterally on the base along its arrangement direction.

[0011] Furthermore, a linear slide rail is provided on the base, the detection column is slidably connected to the linear slide rail via a slider, and a locking component is provided on the slider to prevent the slider from sliding.

[0012] Furthermore, the detection column is made of stainless steel.

[0013] Furthermore, the surface of the detection column is provided with a wear-resistant coating.

[0014] Furthermore, the top of the detection column has a rounded chamfer structure.

[0015] Furthermore, a non-slip pad is provided at the bottom of the base.

[0016] The automobile oil pipe joint quality inspection jig provided by the utility model can simultaneously complete the detection of the height of the automobile oil pipe joint, the aperture size of the vertical axis hole on its vertical axis part, and the parallelism of the horizontal axis end faces at both ends of its horizontal axis part by arranging a plurality of detection columns on the base. It is not only convenient to operate, but also can greatly improve the detection efficiency and reduce labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the oil pipe joint structure Figure 1 .

[0018] Figure 2 Schematic diagram of the oil pipe joint structure Figure 2 .

[0019] Figure 3 Schematic diagram of the structure of the quality inspection fixture for automobile oil pipe joints Figure 1(Axonometric drawing).

[0020] Figure 4 Schematic diagram of the structure of the quality inspection fixture for automobile oil pipe joints Figure 2 (Front view).

[0021] Figure 5 Schematic diagram of the structure of the quality inspection fixture for automobile oil pipe joints Figure 3 (Top view).

[0022] Figure 6 Schematic diagram of the structure of the quality inspection fixture for automobile oil pipe joints Figure 4 (Side view).

[0023] Figure 7 This is an illustration of the use of the automobile oil pipe joint quality inspection fixture Figure 1 (Axonometric drawing).

[0024] Figure 8 This is an illustration of the use of the automobile oil pipe joint quality inspection fixture Figure 2 (Front view).

[0025] Figure 9 This is an illustration of the use of the automobile oil pipe joint quality inspection fixture Figure 3 (Top view).

[0026] Figure 10 This is an illustration of the use of the automobile oil pipe joint quality inspection fixture Figure 4 (Side view).

[0027] Figure 11 Schematic diagram of the detection column and oil pipe joint structure (perspective state).

[0028] The reference numerals are as follows: 1 is an oil pipe joint, 11 is a vertical axis portion, 12 is a horizontal axis portion, 13 is a vertical axis hole, 14 is a horizontal axis end face, 2 is a base, and 3 is a detection column. DETAILED DESCRIPTION

[0029] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings. For ease of description, the terms "front," "back," "front," "back," "left," "right," "top," "bottom," "up," "down," "inside," "outside," and "inner" in the present invention are based on the directions or positions shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention or the actual direction of the product or device during production, use, sales, etc. In addition, in the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "set," "connected," "fixed," and "composed" should be understood broadly. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] like Figure 1 、 Figure 2 The figure shows a schematic structural diagram of an oil pipe joint 1, which is a commonly used component of a current automobile fuel system. The oil pipe joint 1 is a three-way structure, including a vertical axis portion 11 and a horizontal axis portion 12 located at the top of the vertical axis portion 11 and perpendicular to the vertical axis portion 11, wherein a vertical axis hole 13 is provided at the bottom of the vertical axis portion 11, and horizontal axis end surfaces 14 are provided at the left and right ends of the horizontal axis portion 12 respectively; the utility model provides a quality inspection jig for automobile oil pipe joints, which can simultaneously complete the height detection of the automobile oil pipe joint, the aperture size of the vertical axis hole 13 on the vertical axis portion 11, and the parallelism detection of the horizontal axis end surfaces 14 at both ends of the horizontal axis portion 12; of course, the relevant detection of other oil pipe joints 1 with similar structures can also be applied, and there is no limitation here.

[0031] like Figures 3 to 6 As shown, the automobile oil pipe joint quality inspection jig includes a base 2, on which a plurality of detection columns 3 are provided (for example, 23 in this embodiment). Specifically, the plurality of detection columns 3 are evenly arranged along a straight line and vertically arranged on the base 2. At the same time, the detection columns 3 are adapted to the vertical axis hole 13, so that the oil pipe joint 1 can be stably inserted into the detection columns 3 through the vertical axis hole 13; in addition, the distance between the axes of each two adjacent detection columns 3 is equal to the distance between the transverse axis end faces 14 at both ends of the transverse axis portion 12.

[0032] like Figures 7 to 11As shown, when in use, first insert the oil pipe joints 1 on the detection column 3 according to the angle at which the horizontal axis end faces 14 of adjacent oil pipe joints 1 meet, and observe the adaptation of the detection column 3 to the vertical axis hole 13 of the inserted oil pipe joint 1 while inserting. If it cannot be inserted, it means that the vertical axis hole 13 of the oil pipe joint 1 is too small. If it shakes significantly after insertion, it means that the vertical axis hole 13 of the oil pipe joint 1 is too large. Both of the above are unqualified situations; after all the detection columns 3 are inserted with the oil pipe joints 1, observe the heights of all the oil pipe joints 1 to see if they are in the same straight line. If Figure 8 As shown, if the tops of all the oil pipe joints 1 are in the same straight line, it means that the height is qualified. If there is a higher point or the first point in the middle, it means that the height is unqualified. In addition, observe the gaps between the transverse axis end faces 14 of all adjacent oil pipe joints 1. If Figure 8 、 Figure 9 As shown, if the transverse axis end faces 14 of all adjacent oil pipe joints 1 are just in contact, it means that the parallelism of the transverse axis end faces 14 at both ends of the transverse axis portion 12 is qualified, otherwise it is unqualified.

[0033] The automobile oil pipe joint quality inspection jig adopting the above structure can simultaneously complete the height detection of the automobile oil pipe joint, the aperture size of the vertical axis hole 13 on its vertical axis portion 11, and the parallelism detection of the horizontal axis end faces 14 at both ends of its horizontal axis portion 12 through the setting of the detection column 3. It is not only convenient to operate, but also can greatly improve the detection efficiency and reduce labor costs.

[0034] In some embodiments, the height of the inspection column 3 is adjustable, so that the inspection column 3 can be applied to the quality inspection of oil pipe joints 1 with vertical axis holes 13 of more different depths, thereby improving the versatility of the automobile oil pipe joint quality inspection fixture.

[0035] In some embodiments, the spacing between the inspection columns 3 is adjustable, so that the inspection columns 3 can be suitable for the quality inspection of oil pipe joints 1 with more different thicknesses of the transverse axis portion 12 (referring to the distance between the end surfaces 14 of the transverse axis at both ends), thereby further improving the versatility of the automobile oil pipe joint quality inspection fixture.

[0036] In some embodiments, the detection column 3 can be detachably mounted on the base 2, for example, by means of screws, snaps, etc., and a suitable detection column 3 can be installed at a reasonable position according to actual needs during use, so that the detection column 3 can be suitable for the quality inspection of oil pipe joints 1 with more different apertures, different depths of vertical axis holes 13, or different thicknesses of horizontal axis parts 12, thereby further improving the versatility of the automobile oil pipe joint quality inspection jig.

[0037] In some embodiments, the detection columns 3 can be moved laterally along the arrangement direction on the base 2, so that the spacing between the detection columns 3 can be adjusted, making the adjustment faster and more convenient, while improving the versatility of the automobile oil pipe joint quality inspection fixture and further improving the detection efficiency.

[0038] In some embodiments, a linear slide rail is provided on the base 2, and a slider is provided under the detection column 3. The detection column 3 is slidably connected to the linear slide rail through the slider, and a locking component is provided on the slider. The locking component can prevent the slider from sliding. The above structure can simply, quickly and stably realize that the detection column 3 can move horizontally along its arrangement direction on the base 2.

[0039] In some embodiments, the detection column 3 is made of stainless steel, which has high strength and hardness, as well as excellent wear resistance and corrosion resistance, and can increase the service life of the automobile oil pipe joint quality inspection jig.

[0040] In some embodiments, the surface of the detection column 3 is provided with a wear-resistant coating, such as nitride-plated aluminum titanium, which can not only reduce friction and prevent the oil pipe joint 1 from being scratched, but also improve the wear resistance and corrosion resistance of the detection column 3.

[0041] In some embodiments, the top of the detection column 3 has a rounded chamfer structure, which can reduce friction caused by insertion, avoid damaging the hole wall of the oil pipe joint 1, and extend the service life of the detection column 3.

[0042] In some embodiments, a non-slip pad is provided at the bottom of the base 2 to increase the stability of the automobile oil pipe joint quality inspection jig and prevent movement or tilting during the inspection process.

[0043] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Any equivalent changes based on the shape, structure and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quality inspection jig for automobile oil pipe joints, used for detecting the aperture, height and parallelism of an oil pipe joint (1), wherein the oil pipe joint (1) comprises a vertical shaft portion (11) and a horizontal shaft portion (12) located at the top of the vertical shaft portion (11) and perpendicular to the vertical shaft portion (11), a vertical shaft hole (13) is provided at the bottom of the vertical shaft portion (11), and horizontal shaft end surfaces (14) are respectively provided at both ends of the horizontal shaft portion (12), characterized in that: The invention comprises a base (2) and a plurality of detection columns (3) arranged on the base (2); the plurality of detection columns (3) are evenly arranged along a straight line and vertically arranged on the base (2); the detection columns (3) are adapted to the vertical axis holes (13); and the distance between the axes of two adjacent detection columns (3) is equal to the distance between the transverse axis end surfaces (14) at both ends of the transverse axis portion (12).

2. The automobile oil pipe joint quality inspection jig according to claim 1 is characterized in that: The height of the detection column (3) is adjustable.

3. The automobile oil pipe joint quality inspection jig according to claim 1 is characterized in that: The distance between the detection columns (3) is adjustable.

4. The automobile oil pipe joint quality inspection jig according to claim 1 is characterized in that: The detection column (3) is detachably mounted on the base (2).

5. The automobile oil pipe joint quality inspection jig according to claim 3 is characterized in that: The detection column (3) can move laterally on the base (2) along its arrangement direction.

6. The automobile oil pipe joint quality inspection jig according to claim 5 is characterized in that: A linear slide rail is provided on the base (2), the detection column (3) is slidably connected to the linear slide rail via a slider, and a locking component capable of preventing the slider from sliding is provided on the slider.

7. The automobile oil pipe joint quality inspection jig according to claim 1 is characterized in that: The detection column (3) is made of stainless steel.

8. The automobile oil pipe joint quality inspection jig according to claim 7 is characterized in that: The surface of the detection column (3) is provided with a wear-resistant coating.

9. The automobile oil pipe joint quality inspection jig according to claim 1, characterized in that: The top of the detection column (3) is a rounded chamfered structure.

10. The automobile oil pipe joint quality inspection jig according to claim 1, characterized in that: An anti-slip pad is provided at the bottom of the base (2).

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