A protective tool for spraying coating on wheel hub bearing holes

Abstract

This utility model discloses a protective tooling for spraying bearing holes in wheel hubs, including a support base, a protective plug, and a protective cover. A sealing ring is installed on the outer circumference of the protective plug. Two protective plugs are provided, each embedded into one end of the bearing hole in the wheel hub. Parts of the support base and the protective cover pass through the protective plugs. This utility model can achieve a good seal for the bearing hole and can be easily detached from the support base.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub manufacturing technology, and more specifically, to a wheel hub bearing hole spraying protective tool. Background Technology

[0002] During wheel hub painting, the center bearing hole needs to be protected. While inserting a simple support into the bearing hole can achieve this, the wheel hub needs to be rotated during online production because both sides need to be painted. If the simple support fits too tightly into the bearing hole, although it can ensure the painting quality, the two are not easy to separate, leading to operational inconvenience. If the simple support fits too loosely into the bearing hole, although it is convenient for workers, the loose fit will result in inadequate protection, and the painting quality cannot be guaranteed. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a protective tool for spraying wheel hub bearing holes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a protective tooling for spraying bearing holes in wheel hubs, including a support base, a protective plug, and a protective cover. A sealing ring is installed on the outer periphery of the protective plug. Two protective plugs are provided and are respectively embedded in the two ends of the bearing hole of the wheel hub. Parts of the support base and the protective cover pass through the protective plugs.

[0006] Furthermore, a groove is provided on the outer periphery of the protective plug, and a sealing ring is installed by embedding it into the groove.

[0007] Furthermore, a groove is provided on the outer periphery of the protective plug near the upper and lower end faces, and a sealing ring is embedded in each groove.

[0008] Furthermore, the protective plug has a hole in the middle, allowing the protective cover and support portion to be inserted into the hole of the protective plug.

[0009] Furthermore, the end face of the protective plug is flush with the end face of the bearing hole of the wheel hub.

[0010] The beneficial effects of this utility model are: while ensuring the sealing effect, the protective cover and support can be easily removed from the protective plug, thus ensuring convenient operation during the reversal of the wheel hub. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a structure of the wheel hub bearing hole spraying protection tool in this embodiment;

[0012] Figure 2 This is a schematic diagram of one structure of the protective plug in this embodiment;

[0013] Figure 3 This is a schematic diagram of one structure of the protective cover in this embodiment;

[0014] Figure 4 This is a schematic diagram of one structure of the support base in this embodiment.

[0015] Reference numerals: 1. Support base; 2. Protective plug; 3. Sealing ring; 4. Protective cover; 5. Hub; 6. Spray painting line support column; 7. Handle; 8. Mounting column; 9. Cover body; 10. Threaded hole; 11. Support column; 12. Insertion column. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-4 As shown, a protective fixture for spraying bearing holes in a wheel hub includes a support base 1, a protective plug 2, a sealing ring 3, and a protective cover 4. Two grooves are formed on the outer periphery of the protective plug 2, one near the upper end face and the other near the lower end face. A sealing ring 3 is embedded in each groove. Before spraying the wheel hub 5, the protective plug 2 with the sealing ring 3 installed is inserted into the bearing hole of the wheel hub 5, with one protective plug 2 installed in each of the two bearing holes. The end face of the protective plug 2 is flush with the end face of the bearing hole of the wheel hub 5. Because the sealing ring 3 is elastic, it ensures a tight fit between the protective plug 2 and the bearing hole, providing good protection.

[0018] The sealing ring 3 is made of high-temperature resistant rubber, which ensures that the condition is stable during the baking process of the wheel hub, so that the protective plug 2 can be left in place throughout the entire spraying process (spraying, baking, cooling) and then removed after the spraying is completed.

[0019] A support base 1 is provided on the spraying line support column 6 of the entire spraying production line. The support base 1 is engaged with the spraying line support column 6 and can rotate with it. The support base 1 includes a support column 11 and an insertion column 12. The insertion column 12 is located above the support column 11, and its diameter is smaller than that of the support column 11. The hub 5 equipped with the protective plug 2 is placed on the support base 1, and the insertion column 12 is inserted into the hole in the middle of the protective plug 2. The upper end face of the support column 11 abuts against the lower end face of the protective plug 2 to support it. Under the action of gravity, the lower end face of the protective plug 2 and the upper end face of the support column 11 fit tightly together, achieving a good seal.

[0020] The protective cover 4 includes a connected mounting post 8 and a cover body 9. The diameter of the mounting post 8 is smaller than the diameter of the cover body 9. The mounting post of the protective cover 4 is inserted into the protective plug 2 located at the upper end of the bearing hole. The lower end of the cover body 9 abuts against the upper end face of the protective plug 2 to achieve a seal.

[0021] The protective cover 4 is equipped with a handle 7, which allows staff to more easily pick up the protective cover 7.

[0022] The protective cover 4 and the handle 7 are installed in such a way that a threaded hole 10 is provided in the middle of the protective cover 4, and the lower end of the handle 7 is threaded into the threaded hole 10.

[0023] The insertion post 12 and the protective plug 2 are fitted with a clearance, so that the protective plug 2 can be easily removed from the support seat 1 when the hub 5 needs to be flipped.

[0024] After the current wheel hub 5 has been painted, the protective cover 4 can be removed and placed on the next wheel hub 5 that needs to be painted.

[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A protective tooling for spraying coating on wheel hub bearing holes, characterized in that, It includes a support base (1), a protective plug (2) and a protective cover (4). A sealing ring (3) is installed on the outer periphery of the protective plug (2). There are two protective plugs (2), which are respectively embedded in the two ends of the bearing hole of the hub (5). Parts of the support base (1) and the protective cover (4) pass through the protective plug (2).

2. The wheel hub bearing hole spraying protective fixture according to claim 1, characterized in that, The protective plug (2) has a groove on its outer periphery, and the sealing ring (3) is installed by embedding it in the groove.

3. The wheel hub bearing hole spraying protective fixture according to claim 2, characterized in that, The protective plug (2) has a groove on its outer periphery near the upper and lower end faces, and a sealing ring (3) is embedded in each groove.

4. The wheel hub bearing hole spraying protective fixture according to claim 1, characterized in that, The protective plug (2) has a hole in the middle, and parts of the protective cover (4) and the support base (1) can be inserted into the hole of the protective plug (2).

5. The wheel hub bearing hole spraying protective fixture according to claim 1, characterized in that, The end face of the protective plug (2) is flush with the end face of the bearing hole of the hub (5).

Images