Aluminum alloy wheel hub center hole protection tool

Abstract

The utility model relates to an aluminum alloy wheel hub center hole protection tool which is characterized in that a connecting female end (1-4) of a protection assembly deployment device (1) is sleeved with a connecting plug (2-1) of a protection assembly (2), and electric control telescopic locking plates (1-5) on the two sides of the connecting female end (1-4) are embedded into locking grooves (2-2) of the connecting plug (2-1) to achieve locking; the upper surface of the connecting female end (1-4) is fixedly connected with the lower ends of an electric push rod (1-2) and a piston cylinder (1-3); the upper ends of the electric push rod (1-2) and the piston cylinder (1-3) are fixedly connected through a connecting top plate (1-1); the lower portion of the connecting plug (2-1) is in threaded connection with the upper end of the supporting air pipe (2-4) and clamps an opening in the upper end of the air bag (2-3), and the lower terminal (2-5) is in threaded connection with the lower end of the supporting air pipe (2-4) and clamps an opening in the lower end of the air bag (2-3). The hub hole protection device can effectively protect hub holes with various hole diameters from powder entering, can protect a plurality of hub holes in one hub at the same time, and can effectively improve the yield of hub production.

Description

Technical Field

[0001] The utility model relates to the technical field of protective devices, in particular to a protective tooling for a central hole of an aluminum alloy wheel hub. Background Art

[0002] At present, aluminum alloy wheels need to go through processes such as die-casting, heat treatment, disinfection and spraying during production. During the spraying process, the paint sprayed is powder and then heated to harden its surface. This treatment will slightly change the aperture on the wheel, resulting in problems during later assembly. Currently, hole expansion and masking balls are mainly used to ensure that the aperture on the aluminum alloy wheel remains unchanged. Among them, hole expansion may have errors due to the thickness of powder spraying, resulting in different changes in the aperture after later heating. Although the tolerance is extremely small, it will also affect the yield rate of wheel production. Although the masking ball can effectively prevent powder and other debris from entering the wheel hole, it itself is of insufficient quality and may be blown away during spraying, affecting the yield rate of wheel production, thereby leading to an increase in the company's production costs.

[0003] At present, the utility model with patent number CN213529225U discloses a protective device for the installation surface of aluminum alloy wheel hub coating powder spraying, including an aluminum alloy wheel hub, a mounting surface and a mounting hole, a protective plate is provided on the lower surface of the mounting surface, the protective plate is a hollow structure, and a clamping mechanism for clamping the mounting hole is provided inside the protective plate; the clamping mechanism includes a bidirectional screw, a moving block, a connecting rod and a clamping block, the bidirectional screw is laterally located inside the protective plate, the left and right inner walls of the protective plate are both embedded with rolling bearings, both ends of the bidirectional screw are respectively connected to the left and right inner walls of the protective plate through rolling bearings, the right end of the bidirectional screw penetrates to the outside of the protective plate, and the moving block is symmetrically located inside the protective plate. The utility model can prevent powder from being adsorbed on the mounting surface of the aluminum alloy wheel hub, thereby improving the effect of use. However, the application scheme is only applicable to single-hole wheel hubs, and has restrictions on the wheel hub aperture, and cannot well take into account wheel hubs with multiple apertures and wheel hubs with multiple wheel hub holes. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides an aluminum alloy wheel hub center hole protection tooling, which can effectively protect hub holes of various apertures to prevent powder from entering, and can protect multiple hub holes on a hub at the same time, which can effectively improve the yield rate of hub production.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a protective tool for the center hole of an aluminum alloy wheel hub, including a protective component deployment device and a vent hole, wherein the connecting female end of the protective component deployment device is sleeved with the connecting plug of the protective component, and locking is achieved by embedding the electrically controlled telescopic locking plates on both sides of the connecting female end into the locking grooves of the connecting plug; the upper surface of the connecting female end is fixedly connected to the lower end of the electric push rod and the piston cylinder, and the upper ends of the electric push rod and the piston cylinder are fixedly connected by a connecting top plate; the connecting female end is connected to the piston cylinder; the airbag is sleeved with the supporting air pipe, and the openings at the upper and lower ends of the airbag correspond to the upper and lower ports of the supporting air pipe, the lower part of the connecting plug is screwed to the upper end of the supporting air pipe and clamps the opening at the upper end of the airbag, and the lower terminal is screwed to the lower end of the supporting air pipe and clamps the opening at the lower end of the airbag; a vent hole is provided on the surface of the supporting air pipe; the connecting plug is connected to the supporting air pipe.

[0006] In addition, the aluminum alloy wheel hub center hole protection tooling proposed in the above embodiment of the utility model may also have the following additional technical features:

[0007] As a further improvement scheme of the utility model, the connecting female end includes an air charging and discharging port, a push rod and a sealing rubber ring. A blind hole is opened at the lower part of the connecting female end, a push rod is fixedly installed at the top center of the blind hole, four to eight air charging and discharging ports are arranged at equal intervals around the push rod, a sealing rubber ring is fixedly installed at the lower edge of the blind hole of the connecting female end, and the push rod is directly opposite to the connecting tube of the connecting plug.

[0008] As a further improvement scheme of the utility model, the connecting plug includes a connecting pipe, a sealing top plate, a return spring and a grille plate. A connecting pipe is opened at the top of the connecting plug, and the connecting pipe is connected to the main ventilation pipe. The diameter of the main ventilation pipe is larger than that of the connecting pipe. A grille plate is provided in the middle section of the main ventilation pipe. The two ends of the return spring respectively resist the grille plate and the sealing top plate. The sealing top plate seals the joint between the connecting pipe and the main ventilation pipe.

[0009] As a further improvement of the utility model, the airbag is made of EPDM rubber with a thickness of not less than four millimeters and the upper and lower parts of the airbag are thickened to five millimeters.

[0010] As a further improvement of the utility model, a sealing rubber ring is provided on the edge of the sealing top plate.

[0011] As a further improvement of the present invention, a threaded hole is provided on the side of the connecting female end.

[0012] Through the above scheme, the utility model has at least the following advantages: compared with the conventional wheel hub hole protection tooling, the protection component is placed in the wheel hub hole through the protection component deployment device, and then the expandable and shrinkable airbag is controlled to seal the wheel hub hole, which can effectively protect wheel hub holes of various apertures to prevent powder from entering, and can protect multiple wheel hub holes on a wheel hub at the same time, which can effectively improve the yield rate of wheel hub production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the center hole protection tooling of the aluminum alloy wheel hub;

[0014] Figure 2 It is a three-dimensional diagram of the deployment device of the protective component of the aluminum alloy wheel hub center hole protective tooling;

[0015] Figure 3 It is a three-dimensional diagram of the protective components of the aluminum alloy wheel hub center hole protective tooling;

[0016] Figure 4 It is a three-dimensional picture of the protective component of the aluminum alloy wheel hub center hole protective tooling and the airbag is removed;

[0017] Figure 5 It is a side cross-sectional view of the female end of the connection of the center hole protection tooling of the aluminum alloy wheel hub;

[0018] Figure 6 It is a side cross-sectional view of the connection plug of the aluminum alloy wheel hub center hole protection tooling;

[0019] In the figure: 1. protective component deployment device, 1-1. connecting top plate, 1-2. electric push rod, 1-3. piston cylinder, 1-4. connecting female end, 1-4-1. charging and discharging port, 1-4-2. push rod, 1-4-3. sealing rubber ring, 1-5. electric control telescopic locking plate, 2. protective component, 2-1. connecting plug, 2-1-1. connecting pipe, 2-1-2. sealing top plate, 2-1-3. return spring, 2-1-4. grille plate, 2-1-5. main ventilation pipe, 2-2. locking groove, 2-3. air bag, 2-4. supporting air pipe, 2-5. lower terminal, 2-6. ventilation hole. DETAILED DESCRIPTION

[0020] The aluminum alloy wheel hub center hole protection tooling of the present invention will be described below in conjunction with the accompanying drawings.

[0021] In the specific implementation mode 1 of the present application, Figures 1 to 4As shown, the aluminum alloy wheel hub center hole protection tooling (hereinafter referred to as "this patent"), the protection component deployment device 1 and the protection component 2, the connection female end 1-4 of the protection component deployment device 1 is sleeved with the connection plug 2-1 of the protection component 2, and the locking is achieved by embedding the electrically controlled telescopic locking plates 1-5 on both sides of the connection female end 1-4 into the locking groove 2-2 of the connection plug 2-1; the upper surface of the connection female end 1-4 is fixedly connected to the lower end of the electric push rod 1-2 and the piston cylinder 1-3, and the upper ends of the electric push rod 1-2 and the piston cylinder 1-3 are connected by The connecting top plate 1-1 is fixedly connected; the connecting female end 1-4 is connected to the piston cylinder 1-3; the airbag 2-3 is sleeved on the supporting air pipe 2-4, and the openings at the upper and lower ends of the airbag 2-3 correspond to the upper and lower ports of the supporting air pipe 2-4, the lower part of the connecting plug 2-1 is screwed to the upper end of the supporting air pipe 2-4, and the opening at the upper end of the airbag 2-3 is clamped, and the lower terminal 2-5 is screwed to the lower end of the supporting air pipe 2-4 and clamps the opening at the lower end of the airbag 2-3; a vent hole 2-6 is provided on the surface of the supporting air pipe 2-4; the connecting plug 2-1 is connected to the supporting air pipe 2-4.

[0022] The utility model number is CN213529225U, which is a protective device for the powder coating installation surface of an aluminum alloy wheel hub (hereinafter referred to as "the patent"). The application scheme is only applicable to single-hole wheel hubs and has restrictions on the wheel hub aperture. It cannot take into account wheel hubs with various apertures and wheel hubs with multiple wheel hub holes. The patent uses an expandable and shrinkable airbag (2-3) to block the wheel hub hole, so that the patent can cope with wheel hub holes of various aperture sizes and can be flexibly arranged according to the number of wheel hub holes on the wheel hub, thereby effectively coping with the situation where multiple wheel hub apertures and multiple wheel hub holes are provided on a wheel hub.

[0023] The structure of the second embodiment is basically the same as that of the first embodiment, except that Figure 5 As shown, a blind hole is provided at the lower part of the connecting female end 1-4, and the blind hole is a socket position for sleeve-fitting the connecting plug 2-1, so that the electrically controlled telescopic locking plate 1-5 can be embedded in the locking groove 2-2 for locking. A push rod 1-4-2 is fixedly installed at the top center of the blind hole, and four to eight charging and discharging ports 1-4-1 are arranged at equal intervals around the push rod 1-4-2. A sealing rubber ring 1-4-3 is fixedly installed at the lower edge of the blind hole of the connecting female end 1-4, and the push rod 1-4-2 is directly opposite to the connecting tube 2-1-1 of the connecting plug 2-1.

[0024] The structure of the third embodiment is basically the same as that of the first and second embodiments, except that Figure 6As shown, a connecting pipe 2-1-1 is provided at the top of the connecting plug 2-1, and the connecting pipe 2-1-1 is connected to the main ventilation pipe 2-1-5. The diameter of the main ventilation pipe 2-1-5 is larger than that of the connecting pipe 2-1-1. A grille plate 2-1-4 is provided at the middle section of the main ventilation pipe 2-1-5. The two ends of the return spring 2-1-3 respectively abut against the grille plate 2-1-4 and the sealing top plate 2-1-2. The sealing top plate 2-1-2 closes the joint of the connecting pipe 2-1-1 and the main ventilation pipe 2-1-5. The grille plate 2-1-4 itself is a plurality of single columns arranged side by side, and gaps are left between the single columns to facilitate air to pass through.

[0025] In order to further optimize the working efficiency of the present application and improve the strength of the airbag 2-3 itself, the airbag 2-3 is made of EPDM rubber with a thickness of not less than four millimeters and the upper and lower parts of the airbag 2-3 are thickened to five millimeters. In order to further improve the sealing performance of the sealing top plate 2-1-2, a sealing rubber ring is provided on the edge of the sealing top plate 2-1-2. In order to make it easier for the present patent to be installed on the robot arm, a threaded hole is provided on the side of the connecting female end 1-4.

[0026] When in use, install the protective component deployment device 1 of the aluminum alloy wheel hub center hole protection tooling onto the robotic arm, and then neatly arrange multiple protective components 2 on the frame for standby use. After connecting the corresponding pipelines, the equipment can be put into use.

[0027] When the utility model is in use, the specific operations are as follows:

[0028] When in use, the observation device on the robot arm first observes the specific position of the aluminum alloy wheel hub and the angle of the wheel hub hole relative to the wheel hub. The robot arm moves the protective component deployment device 1 installed on it to the top of the protective component 2, and then aligns the connecting female end 1-4 with the connecting plug 2-1 of the protective component 2. The robot arm moves down, and the connecting female end 1-4 is covered with the connecting plug 2-1. The electrically controlled telescopic locking plate 1-5 extends out and snaps into the side of the connecting plug 2-1 to grasp and lock the protective component 2. At the same time, the push rod 1-4-2 is inserted into the connecting pipe 2-1-1 of the connecting plug 2-1 and The sealing top plate 2-1-2 is pushed to compress the return spring 2-1-3, so that the passage between the connecting pipe 2-1-1 and the main ventilation pipe 2-1-5 is opened; the robot arm lifts the protection component 2 through the protection component deployment device 1, and then moves the protection component 2 to the top of the wheel hub hole that needs to be protected. After the airbag 2-3 is inserted into the wheel hub hole, the electric push rod 1-2 contracts, driving the piston cylinder 1-3 to supply air to the connecting female end 1-4, and the air enters the connecting female end 1-4 through the charging and discharging port 1-4-1 in the connecting female end 1-4, and then the connecting pipe 2-1-1 and the main ventilation pipe 2-1-5 are opened along the passage. The main ventilation pipe 2-1-5 enters the supporting air pipe 2-4, and enters the air bag 2-3 from the ventilation hole 2-6 of the supporting air pipe 2-4, so that the air bag 2-3 expands and fills the wheel hub hole to protect the wheel hub hole. The electrically controlled telescopic locking plate 1-5 is unlocked from the locking groove 2-2, so that the protection component deployment device 1 can be detached. The detached protection component deployment device 1 makes the push rod 1-4-2 inside it no longer exert pressure on the sealing top plate 2-1-2, and the reset spring 2-1-3 can push the sealing top plate 2-1-2 to reseal the connecting pipe 2-1-1 and the main ventilation pipe 2-1-5 to achieve airtightness. To prevent the airbag 2-3 from leaking, the spraying operation can be carried out at this time. After the spraying is completed, the connecting female end 1-4 of the protection component deployment device 1 is re-connected to the connecting plug 2-1, and the electric push rod 1-2 extends outward to drive the piston cylinder 1-3 to start pumping air. The gas in the airbag 2-3 can re-enter the piston cylinder 1-3 from the main ventilation pipe 2-1-5, the connecting pipe 2-1-1 and the charging and discharging port 1-4-1, so that the airbag 2-3 shrinks and detaches from the wheel hub hole. The robotic arm can then pull the protection component 2 out of the wheel hub hole through the protection component deployment device 1, and put it on the bracket waiting for the next use.

[0029] In summary, the aluminum alloy wheel hub center hole protection tooling of the embodiment of the utility model clamps the connecting plug 2-1 of the protection component 2 through the connecting female end 1-4 of the protection component deployment device 1, puts the protection component 2 into the wheel hub hole, and then controls the expandable and shrinkable airbag 2-3 to block the wheel hub hole by pushing and pulling the piston cylinder 1-3 through the electric push rod 1-2, which can effectively protect wheel hub holes of various apertures to prevent powder from entering, and can protect multiple wheel hub holes on a wheel hub at the same time, which can effectively improve the yield rate of wheel hub production.

[0030] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A protective tool for the center hole of an aluminum alloy wheel hub, comprising a protective component (2), characterized in that: The protective component deployment device (1) is also included. The connecting female end (1-4) of the protective component deployment device (1) is sleeved with the connecting plug (2-1) of the protective component (2), and is locked by embedding the electrically controlled telescopic locking plates (1-5) on both sides of the connecting female end (1-4) into the locking grooves (2-2) of the connecting plug (2-1); the upper surface of the connecting female end (1-4) is fixedly connected to the lower end of the electric push rod (1-2) and the piston cylinder (1-3), and the upper ends of the electric push rod (1-2) and the piston cylinder (1-3) are fixedly connected via the connecting top plate (1-1); the connecting female end (1 -4) is connected to the piston cylinder (1-3); the airbag (2-3) is sleeved with the supporting air pipe (2-4); the upper and lower openings of the airbag (2-3) correspond to the upper and lower ports of the supporting air pipe (2-4); the lower part of the connecting plug (2-1) is screwed to the upper end of the supporting air pipe (2-4) and clamps the upper opening of the airbag (2-3); the lower terminal (2-5) is screwed to the lower end of the supporting air pipe (2-4) and clamps the lower opening of the airbag (2-3); a vent hole (2-6) is provided on the surface of the supporting air pipe (2-4); the connecting plug (2-1) is connected to the supporting air pipe (2-4).

2. The aluminum alloy wheel hub center hole protection tooling according to claim 1 is characterized in that: The connecting female end (1-4) comprises a charging and discharging port (1-4-1), a push rod (1-4-2) and a sealing rubber ring (1-4-3); a blind hole is provided at the bottom of the connecting female end (1-4); a push rod (1-4-2) is fixedly installed at the top center of the blind hole; four to eight charging and discharging ports (1-4-1) are arranged at equal intervals around the push rod (1-4-2); a sealing rubber ring (1-4-3) is fixedly installed at the bottom edge of the blind hole of the connecting female end (1-4); and the push rod (1-4-2) is directly opposite to the connecting tube (2-1-1) of the connecting plug (2-1).

3. The aluminum alloy wheel hub center hole protection tooling according to claim 2, characterized in that: The connecting plug (2-1) comprises a connecting pipe (2-1-1), a sealing top plate (2-1-2), a return spring (2-1-3) and a grid plate (2-1-4); a connecting pipe (2-1-1) is provided at the top of the connecting plug (2-1); the connecting pipe (2-1-1) is connected to a main ventilation pipe (2-1-5); the diameter of the main ventilation pipe (2-1-5) is larger than that of the connecting pipe (2-1-1); a grid plate (2-1-4) is provided at a middle section of the main ventilation pipe (2-1-5); two ends of the return spring (2-1-3) respectively abut against the grid plate (2-1-4) and the sealing top plate (2-1-2); the sealing top plate (2-1-2) closes the joint between the connecting pipe (2-1-1) and the main ventilation pipe (2-1-5).

4. The aluminum alloy wheel hub center hole protection tooling according to claim 1, characterized in that: The airbag (2-3) is made of ethylene propylene rubber, has a thickness of not less than four millimeters, and the upper and lower parts of the airbag (2-3) are thickened to five millimeters.

5. The aluminum alloy wheel hub center hole protection tooling according to claim 3, characterized in that: A sealing rubber ring is provided on the edge of the sealing top plate (2-1-2).

6. The aluminum alloy wheel hub center hole protection tooling according to claim 1, characterized in that: The side of the connecting female end (1-4) is provided with a threaded hole.

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