Spraying structure of automobile hub

Abstract

The utility model relates to the technical field of automobile hub spraying processing, and discloses an automobile hub spraying structure which comprises a base, a rotating mechanism is arranged in the base, a supporting cylinder is installed at the top end of the rotating mechanism, the top end of the supporting cylinder extends to the outside of the rotating mechanism, and a positioning block is installed at the top end of the supporting cylinder. According to the automobile hub heating device, under the action of the supporting cylinder and the positioning block, an automobile hub is limited, the automobile hub is guaranteed to be under the U-shaped pipe, and under the action of the guide rod, the first spring, the supporting rod and the like, after the automobile hub is placed downwards, the outer wall of the heating plate can be automatically attached to the inner wall of the automobile hub, and the heating efficiency is improved. Therefore, the heating effect of the heating guide wire is conveniently utilized, heating curing can be conveniently conducted on the automobile hub in the spraying process, heating of the spray head is reduced through the drying mode, and therefore solidification and blockage of the spray head can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile wheel hub spraying processing, in particular to a spraying structure of an automobile wheel hub. Background Art

[0002] The wheel hub is the part where the axle is installed in the center of the wheel. It is a cylindrical metal part with the inner contour of the tire supporting the tire and the center mounted on the axle. It is also commonly called "wheel rim" or "steel rim". In the process of processing automobile wheel hub, in order to avoid rust, it is generally necessary to spray paint on its surface to improve its mechanical properties.

[0003] In order to speed up the unloading rate during the spraying process of automobile wheels, the surface of the automobile wheels is generally baked directly through a drying lamp. Although this method speeds up the rapid curing of the paint, due to the irradiation of the drying lamp, the nozzles and other components located in the same space are easily baked simultaneously, so that the paint solidifies at the nozzle. In order to avoid the nozzle being blocked by the baking lamp, a corresponding improvement plan is now proposed. Utility Model Content

[0004] The utility model aims to provide a spray coating structure for automobile wheel hubs, so as to solve the problem that the existing automobile wheel hub spray coating structure proposed in the above background technology is easy to cause blockage and damage to other spray coating parts during drying.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spray coating structure for an automobile wheel hub, comprising a base, a rotating mechanism is arranged inside the base, and a support tube is installed at the top of the rotating mechanism, the top of the support tube extends to the outside of the rotating mechanism, a positioning block is installed at the top of the support tube, and movable cavities are evenly opened on the outside of the support tube, and limit blocks are installed inside the movable cavities, a support rod is installed on one side of the limit block, and one end of the support rod extends to the outside of the support tube and is installed with a heating plate, and the outside of the support rod is sleeved with a first spring, The inner end of the first spring is connected to the outer wall of the support tube, and the outer end of the first spring is connected to the inner side of the heating plate. A heating guide wire is arranged inside the heating plate, and a guide rod is evenly installed on the top of the heating plate. An air guide device is correspondingly arranged on the outer side of the base below the heating plate, a U-shaped frame is arranged on the top of the base, and an electric telescopic rod is installed on the top of the U-shaped frame. A U-shaped tube is installed on the bottom end of the electric telescopic rod, and nozzles are evenly arranged on the side of the U-shaped tube facing the support tube, and both sides of the top of the U-shaped tube are connected to the external coating supply equipment through guide rods.

[0006] Preferably, the positioning block is a conical structure, and the center of the positioning block is collinearly distributed with the center of the U-shaped tube.

[0007] Preferably, the cross-section of the heating guide wire is arc-shaped, four heating guide wires are provided, and the heating guide wires are distributed in a ring shape at equal intervals outside the support tube.

[0008] Preferably, the cross-section of the guide rod is an arc top, and the top end of the guide rod is inwardly curved.

[0009] Preferably, the rotating mechanism includes a cavity opened inside the base, and a rotating motor is installed at the bottom end of the cavity, the output shaft of the rotating motor is connected to a turntable, and the bottom end of the turntable is evenly embedded with balls, and the bottom end of the balls is against the inside of the base.

[0010] Preferably, the air guide device includes an air cylinder installed at the bottom end of the outer wall of the support cylinder, and a piston rod passes through the bottom end of the air cylinder, a movable block is installed at the bottom end of the piston rod, and a guide block is installed at the top end of the base under the movable block, a second spring is sleeved on the outside of the piston rod, and the top end of the second spring abuts against the bottom end of the air cylinder, the bottom end of the second spring abuts against the top end of the movable block, a one-way air inlet pipe is installed at the top end of the air cylinder, and a one-way air outlet pipe is installed at the top end of the outer side of the air cylinder.

[0011] Preferably, the side-view cross-section of the guide block is a right-angled trapezoid, and the inclined surface of the guide block abuts against the bottom end of the movable block, and the air outlet end of the one-way outlet pipe faces below the heating plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The support tube and the positioning block are used to limit the position of the automobile wheel hub so that it is guaranteed to be directly below the U-shaped tube. The guide rod, the first spring, the support rod, etc. are used to make the outer wall of the heating plate automatically fit to the inner wall of the automobile wheel hub after the automobile wheel hub is placed downward, so that the heating effect of the heating wire is used to heat and cure the automobile wheel hub during the spraying process, thereby avoiding damage to the sprayed paint when taking the automobile wheel hub. In addition, this drying method reduces the heating of the nozzle, which is conducive to reducing the solidification and clogging of the nozzle.

[0014] (2) The support cylinder is rotated so that the nozzle can spray the exterior of the automobile wheel hub in an all-round manner, and the guiding effect of the guide block during the rotation process is utilized to enable the piston rod to reciprocately pressurize the cylinder, and cooperate with the one-way air inlet pipe and the one-way outlet pipe so that the high temperature of the heating plate can form an up and down circulation inside the automobile wheel hub, thereby improving the uniform heating and curing of the paint on the automobile wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the support tube of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the heating plate of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the rotating mechanism of the utility model.

[0020] Explanation of the reference numerals in the figure: 1. base; 2. rotating mechanism; 201. cavity; 202. rotating motor; 203. turntable; 204. ball; 3. support cylinder; 4. air guide device; 401. air cylinder; 402. piston rod; 403. second spring; 404. movable block; 405. guide block; 406. one-way air inlet pipe; 407. one-way air outlet pipe; 5. heating plate; 6. heating guide wire; 7. first spring; 8. support rod; 9. limit block; 10. movable cavity; 11. positioning block; 12. electric telescopic rod; 13. U-shaped tube; 14. nozzle; 15. connecting pipe; 16. guide rod; 17. U-shaped frame. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 , the utility model provides an embodiment: a spray coating structure of an automobile wheel hub, comprising a base 1, wherein a rotating mechanism 2 is arranged inside the base 1;

[0023] The rotating mechanism 2 includes a cavity 201 opened inside the base 1, and a rotating motor 202 is installed at the bottom end of the cavity 201, and the output shaft of the rotating motor 202 is connected to a rotating disk 203, and the bottom end of the rotating disk 203 is evenly embedded with balls 204, and the bottom end of the balls 204 is against the inside of the base 1;

[0024] A support tube 3 is installed at the top of the rotating mechanism 2, and the top of the support tube 3 extends to the outside of the rotating mechanism 2. A positioning block 11 is installed at the top of the support tube 3;

[0025] The positioning block 11 is a conical structure, and the center of the positioning block 11 is collinearly distributed with the center of the U-shaped tube 13;

[0026] Specifically, Figure 1 , Figure 4 As shown, when in use, the function of the ball bearing 204 is utilized to improve the smoothness of the rotation of the turntable 203, and the function of the turntable 203 is utilized to support and guide the support cylinder 3, so as to reduce the bearing pressure of the rotating motor 202 and ensure its normal operation;

[0027] The outer side of the support tube 3 is evenly provided with an active cavity 10, and a limit block 9 is installed inside the active cavity 10, a support rod 8 is installed on one side of the limit block 9, and one end of the support rod 8 extends to the outside of the support tube 3 and is installed with a heating plate 5, the outside of the support rod 8 is sleeved with a first spring 7, and the inner end of the first spring 7 is connected to the outer wall of the support tube 3, and the outer end of the first spring 7 is connected to the inner side of the heating plate 5, and the inside of the heating plate 5 is provided with a heating guide wire 6;

[0028] The cross section of the heating guide wire 6 is arc-shaped, and four heating guide wires 6 are provided, and the heating guide wires 6 are distributed in an annular shape with equal intervals outside the support tube 3;

[0029] The top of the heating plate 5 is evenly installed with guide rods 16;

[0030] The cross section of the guide rod 16 is an arc top, and the top end of the guide rod 16 is inwardly curved;

[0031] Specifically, Figure 1 , Figure 3 As shown, when in use, the guide rod 16 is used to automatically guide the automobile wheel hub, so that during the placement of the automobile wheel hub, the heating plate 5 can automatically shrink and automatically fit on the inner wall of the automobile wheel hub under the action of the first spring 7;

[0032] An air guide device 4 is correspondingly provided on the outer side of the base 1 below the heating plate 5;

[0033] The air guide device 4 includes an air cylinder 401 installed at the bottom end of the outer wall of the support cylinder 3, and a piston rod 402 penetrates the bottom end of the air cylinder 401, a movable block 404 is installed at the bottom end of the piston rod 402, and a guide block 405 is installed at the top end of the base 1 under the movable block 404, a second spring 403 is sleeved on the outside of the piston rod 402, and the top end of the second spring 403 abuts against the bottom end of the air cylinder 401, and the bottom end of the second spring 403 abuts against the top end of the movable block 404, a one-way air inlet pipe 406 is installed at the top end of the air cylinder 401, and a one-way outlet pipe 407 is installed at the top end of the outer side of the air cylinder 401;

[0034] The side view cross section of the guide block 405 is a right-angle trapezoid, and the inclined surface of the guide block 405 abuts against the bottom end of the movable block 404, and the outlet end of the one-way outlet pipe 407 faces below the heating plate 5;

[0035] A U-shaped frame 17 is provided at the top of the base 1, and an electric telescopic rod 12 is installed at the top of the U-shaped frame 17, a U-shaped tube 13 is installed at the bottom of the electric telescopic rod 12, and a nozzle 14 is evenly arranged on the side of the U-shaped tube 13 facing the support tube 3, and both sides of the top of the U-shaped tube 13 are connected to the external paint supply device through a guide rod 16;

[0036] Specifically, Figure 1 , Figure 2 As shown, when in use, the guiding effect of the guide block 405 is utilized to rotate the support cylinder 3, and the air cylinder 401 can circulate the high-temperature airflow around the heating plate 5 up and down, thereby promoting the heat curing effect of the coating on the surface of the automobile wheel hub.

[0037] Working principle: When the utility model is used, firstly, the automobile wheel hub is placed on the top of the support tube 3, the positioning block 11 is inserted into the shaft hole on the automobile wheel hub, the inner wall of the bottom end of the automobile wheel hub contacts the guide rod 16, and slides downward along the guide rod 16, and under the elastic action of the first spring 7, the heating plate 5 automatically fits the inner wall of the automobile wheel hub;

[0038] Secondly, the electric telescopic rod 12 and the external paint supply device are started, and the rotating motor 202 is started, so that the turntable 203 drives the support tube 3 to rotate, so that the automobile wheel hub rotates, so that the paint enters the interior of the U-shaped tube 13 along the connecting tube 15, and is sprayed out by the nozzle 14, so that the nozzle 14 is aimed at the outer wall and the top of the automobile wheel hub for spraying. During the rotation of the automobile wheel hub, the heating guide wire 6 is started to heat the heating plate 5, so that the heating plate 5 heats the inner wall of the automobile wheel hub, so that the paint is cured by heat;

[0039] Finally, during the rotation of the support cylinder 3, it synchronously drives the air cylinder 401 to rotate, so that the bottom end of the movable block 404 contacts the inclined surface of the guide block 405, and as the support cylinder 3 rotates, the movable block 404 is pushed upward along the inclined surface of the guide block 405, so that the piston rod 402 squeezes the air inside the air cylinder 401 into the one-way outlet pipe 407 and discharges it, so that the air blows the heated air around the heating plate 5 upward, and as the movable block 404 separates from the guide block 405, under the elastic action of the second spring 403, the piston rod 402 is reset, so that the air is sucked inwardly along the one-way air inlet pipe 406 into the interior of the air cylinder 401, so that the hot air forms a circulation inside the automobile wheel hub to promote uniform heating of the automobile wheel hub, so as to improve the uniform drying of the paint.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A spray coating structure for an automobile wheel hub, comprising a base (1), characterized in that: A rotating mechanism (2) is arranged inside the base (1), and a support tube (3) is installed at the top end of the rotating mechanism (2), the top end of the support tube (3) extends to the outside of the rotating mechanism (2), a positioning block (11) is installed at the top end of the support tube (3), and an active cavity (10) is evenly opened on the outside of the inside of the support tube (3), and a limiting block (9) is installed inside the active cavity (10), a support rod (8) is installed on one side of the limiting block (9), and one end of the support rod (8) extends to the outside of the support tube (3) and is installed with a heating plate (5), the outside of the support rod (8) is sleeved with a first spring (7), and the inner end of the first spring (7) is connected to the outer wall of the support tube (3), and at the same time The outer end of the first spring (7) is connected to the inner side of the heating plate (5), the interior of the heating plate (5) is provided with a heating wire (6), the top of the heating plate (5) is evenly installed with a guide rod (16), the outer side of the base (1) below the heating plate (5) is correspondingly provided with an air guide device (4), the top of the base (1) is provided with a U-shaped frame (17), and the top of the U-shaped frame (17) is installed with an electric telescopic rod (12), the bottom end of the electric telescopic rod (12) is installed with a U-shaped tube (13), and a nozzle (14) is evenly installed on the side of the U-shaped tube (13) facing the support tube (3), and both sides of the top of the U-shaped tube (13) are connected to an external paint supply device through the guide rod (16).

2. The spray coating structure of an automobile wheel hub according to claim 1, characterized in that: The positioning block (11) is a conical structure, and the center of the positioning block (11) is collinearly distributed with the center of the U-shaped tube (13).

3. The spray coating structure of an automobile wheel hub according to claim 1, characterized in that: The cross section of the heating guide wire (6) is arc-shaped, four heating guide wires (6) are provided, and the heating guide wires (6) are distributed in a ring shape at equal intervals outside the support tube (3).

4. The spray coating structure of an automobile wheel hub according to claim 1, characterized in that: The cross section of the guide rod (16) is an arc top, and the top end of the guide rod (16) is inwardly curved.

5. The spray coating structure of an automobile wheel hub according to claim 1, characterized in that: The rotating mechanism (2) comprises a cavity (201) opened inside the base (1), and a rotating motor (202) is installed at the bottom end inside the cavity (201), the output shaft of the rotating motor (202) is connected to a rotating disk (203), and the bottom end of the rotating disk (203) is evenly embedded with balls (204), and the bottom end of the balls (204) abuts against the inside of the base (1).

6. The spray coating structure of an automobile wheel hub according to claim 1, characterized in that: The air guide device (4) comprises an air cylinder (401) installed at the bottom end of the outer wall of the support cylinder (3), and a piston rod (402) penetrates the bottom end of the air cylinder (401), a movable block (404) is installed at the bottom end of the piston rod (402), and a guide block (405) is installed at the top end of the base (1) under the movable block (404), the outer part of the piston rod (402) is sleeved with a second spring (403), and the top end of the second spring (403) is against the bottom end of the air cylinder (401), the bottom end of the second spring (403) is against the top end of the movable block (404), a one-way air inlet pipe (406) is installed at the top end of the air cylinder (401), and a one-way air outlet pipe (407) is installed at the top end of the outer side of the air cylinder (401).

7. The spray coating structure of an automobile wheel hub according to claim 6, characterized in that: The side-view cross-section of the guide block (405) is a right-angled trapezoid, and the inclined surface of the guide block (405) abuts against the bottom end of the movable block (404), and the outlet end of the one-way outlet pipe (407) faces below the heating plate (5).

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