Spare tire support testing fixture

Abstract

The utility model relates to a spare tire support testing fixture, which comprises a base, a main body is fixed on the base, a groove is arranged in the middle of the main body, the contours of two inner side surfaces of the groove are the same as those of two outer side surfaces of a spare tire support standard component, and the bottom of the groove is provided with two convex blocks with pin holes corresponding to the positions of positioning holes of the spare tire support standard component. Two positioning pins are inserted into the pin holes, one or two positioning blocks are arranged near each protruding block, the height of each positioning block is 2.5 mm, the height of each positioning block is larger than that of each protruding block, one end of the double-end go / no-go gauge is phi 2.5 mm, the other end of the double-end go / no-go gauge is phi 3.5 mm, and the double-end go / no-go gauge further comprises a flush gauge. And the distance D from the pin hole to the inner side surface of the groove is equal to the distance d from the positioning hole of the spare tire bracket standard component to the outer side surface of the spare tire bracket standard component plus 2.5 mm. Detection of the spare tire support can be completed through the positioning pin, the go-no go gauge and the flush gauge, and the detection accuracy and the detection efficiency can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a spare tire bracket inspection tool. Background Technology

[0002] In a newly developed vehicle model, the spare tire bracket consists of a smooth bottom surface and two symmetrical, raised sides with reinforcing ribs. The bottom surface has two diagonally arranged positioning holes. Since the two sides are used to insert into the wheel hub and the bottom surface is mounted on the vehicle body, the flatness of the bottom surface must be checked during production to ensure stability, the parallelism of the two sides must be checked to ensure that the two sides can be quickly inserted into the wheel hub, and the position and size of the two positioning holes must be checked to ensure the installation of the spare tire bracket. Using moving tools to inspect the spare tire bracket is time-consuming and laborious, and it is impossible to obtain an overall judgment, resulting in poor product quality control. Summary of the Invention

[0003] The purpose of this invention is to provide a spare tire bracket inspection tool with hole position detection, plane detection and cut flatness detection, which aims to solve the problems of low detection efficiency and low accuracy when inspecting a spare tire bracket.

[0004] The technical solution adopted by this utility model is as follows: a spare tire bracket inspection tool, including a base, a main body fixed on the base, a groove in the middle of the main body, the contours of the two inner sides of the groove are the same as the contours of the two outer sides of the spare tire bracket standard part, two protrusions with pin holes corresponding to the positioning holes of the spare tire bracket standard part at the bottom of the groove, two positioning pins inserted in the pin holes, one or two positioning blocks near each protrusion, the height of the positioning blocks is 2.5mm, the height of the positioning blocks is greater than the height of the protrusions, and also includes a double-ended go / no-go gauge with one end φ2.5mm and the other end φ3.5mm, and a flush gauge, the distance D from the pin hole to the inner side of the groove is equal to the distance d from the positioning hole of the spare tire bracket standard part to the outer side of the spare tire bracket standard part + 2.5mm.

[0005] A further technical solution of this utility model is: a go / no-go gauge seat with a silicone groove and a flush gauge seat are fixed on the base.

[0006] A further technical solution of this utility model is that the main body, the go / no-go gauge seat, and the flush gauge seat are fixed to the base by bolts.

[0007] The beneficial effects of this utility model are as follows: By adopting the above technical solution, the two positioning pins are removed, the spare tire bracket is placed in the main body, the spare tire bracket is placed on the positioning block, the two positioning pins are then inserted to check the positioning hole of the spare tire bracket and complete the positioning, the gap between the bottom and side surfaces is checked with a go / no-go gauge, and finally the flatness of the cut edge surface of the spare tire bracket is checked with a flatness gauge. The inspection of the spare tire bracket can be completed in three simple standardized actions, which can effectively improve the inspection accuracy and inspection efficiency. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of a spare tire bracket inspection tool according to the present invention;

[0009] Figure 2 This is a schematic diagram of the structure of a spare tire bracket according to the present invention. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0011] Example:

[0012] like Figure 2 The spare tire bracket shown includes a positioning surface 1 and two positioning holes 2, as well as two tall parallel sides with reinforcing ribs. The main inspection items are the flatness of the positioning surface, whether the deviation of the two sides meets the requirements, and the size and position of the two positioning holes of different sizes.

[0013] like Figure 1 The spare tire bracket inspection fixture shown includes a base 8, on which a main body 5 is fixed. The main body 5 has a groove in the middle, the contours of the two inner sides of the groove being the same as the contours of the two outer sides of the spare tire bracket standard part. At the bottom of the groove are two protrusions with pin holes corresponding to the positioning holes of the spare tire bracket standard part. Two positioning pins 4 are inserted into the pin holes. Near each protrusion are one or two positioning blocks 3, the height of which is 2.5mm, greater than the height of the protrusion. It also includes a double-ended go / no-go gauge 7 with one end φ2.5mm and the other end φ3.5mm, and a flush gauge 6. The distance D from the pin hole to the inner side of the groove is equal to the distance d from the positioning hole to the outer side of the spare tire bracket standard part, plus 2.5mm. A go / no-go gauge seat, including a silicone groove, is fixed on the base. A flush gauge seat, including a silicone groove, is also fixed on the base.

[0014] The main body, go / no-go gauge seat, and flush gauge seat can all be made into fasteners that can be disassembled and assembled with the base by bolts, making them easy to replace. When the gauge is no longer in use, the base can also be recycled and used for other gauges.

[0015] The base can be made small enough to accommodate only the main body, the go / no-go gauge seat, and the flush gauge seat. This design is for easy portability. Therefore, the base has fixing holes and slots. Once in place, it can be fixed to the workbench using the fixing holes and slots.

[0016] The base also features a nameplate and reference coordinates, which are standard design elements and will not be elaborated upon further.

[0017] Working principle: Remove the locating pin. Using the locating surface as the reference surface, place the spare tire bracket into the groove. After placing the spare tire bracket, insert the locating pin for double positioning. Successful insertion of both pins simultaneously indicates a pass. If a single pin cannot be inserted, the locating hole size is incorrect. If both pins cannot be inserted simultaneously, the locating hole position is incorrect. Use a double-ended go / no-go gauge to check the clearance between the corresponding peripheral surfaces and the space. If one end of the φ2.5 gauge passes through while the other end does not, it is passable; conversely, if not, it is failable. Note that the two sides are relatively high; during testing, the go / no-go gauge should be used to check both the top and bottom. Problems at either end indicate a fail. Use a ±0.5mm tolerance flush gauge to check the corresponding cut edges. A clearance within ±0.5mm is passable. During inspection, all parts must not be forcibly pressed in to avoid damage and human error.

[0018] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spare tire bracket inspection tool, characterized in that: The device includes a base, on which a main body is fixed. The main body has a groove in the middle, the contours of the two inner sides of the groove being identical to the contours of the two outer sides of the spare tire bracket standard part. At the bottom of the groove are two protrusions with pin holes corresponding to the positioning holes of the spare tire bracket standard part. Two positioning pins are inserted into the pin holes. Near each protrusion are one or two positioning blocks, each 2.5mm high, with the height of the positioning block greater than the height of the protrusion. It also includes a double-ended go / no-go gauge with one end φ2.5mm and the other φ3.5mm, and a flush gauge. The distance D from the pin hole to the inner side of the groove is equal to the distance d from the positioning hole to the outer side of the spare tire bracket standard part, plus 2.5mm.

2. The spare tire bracket inspection tool according to claim 1, characterized in that: The base is fixed with a go / no-go gauge seat with a silicone slot and a flush gauge seat.

3. The spare tire bracket inspection tool according to claim 2, characterized in that: The main body, the go / no-go gauge seat, and the flush gauge seat are fixed to the base with bolts.

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