Magnetron sputtering coating device for surface of aluminum alloy hub

Abstract

The utility model discloses a magnetron sputtering coating device for the surface of an aluminum alloy hub, which comprises an emission electrode, a magnet, a target material, a baffle plate, an argon source and a product electrode, and comprises a hub clamp, the hub clamp comprises a supporting column and a clamping assembly, and the top of the supporting column is a conical head. A hub is placed on the top of the supporting column, and the conical head is embedded into a mounting hole of the hub. The clamping assembly is located on the inner side of the hub, the hub is supported by the clamping assembly from the inner side of the hub, the inner supporting piece is driven by the supporting air cylinder of the clamping assembly to further conduct inner supporting on the inner side face of the hub, and the clamping stability of the hub is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel hub surface treatment devices, in particular to a magnetron sputtering coating device for the surface of an aluminum alloy wheel hub. Background Art

[0002] Magnetron sputtering coating refers to a coating technology that uses the coating material as the target cathode, bombards the target material with argon ions, generates cathode sputtering, and sputters the target atoms onto the workpiece to form a deposited layer. With the rapid development of automobiles, the functions and performance of automobiles have developed to a very high stage, and with it comes higher requirements for the appearance of automobiles. As an important part of the car, the appearance of the wheel hub is also directly important for improving the overall texture of the car. Since the color, fineness and durability of the deposited coating produced by magnetron sputtering coating technology are better than those of spraying, in order to differentiate between products, aluminum alloy wheels have gradually begun to use magnetron detection coating technology to process their surfaces; however, when the wheel hub is magnetron sputtering coated, how to quickly clamp and position it and ensure good conductivity so that the sputtered target atoms can move to the surface of the aluminum alloy wheel hub under the action of the electric field to ensure its good coating effect is a problem that needs to be solved. Summary of the invention

[0003] The utility model aims to provide a device for magnetron sputtering coating on the surface of an aluminum alloy hub, which is intended to solve the problems of rapid positioning and clamping and conduction after clamping during magnetron sputtering coating on the surface of the aluminum alloy hub.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0005] A device for magnetron sputtering coating on the surface of an aluminum alloy wheel hub, comprising an emission electrode, a magnet, a target material, a baffle, an argon gas source and a product electrode,

[0006] A wheel hub clamp; the wheel hub clamp includes a support column and a clamping assembly, the top of the support column is a conical head; the wheel hub is placed on the top of the support column, and the conical head is embedded in the mounting hole of the wheel hub; the clamping assembly is located on the inner side of the wheel hub, and the clamping assembly supports the wheel hub from the inner side of the wheel hub.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the clamping assembly includes a symmetrically or centrally symmetrically arranged expansion cylinder and an inner support member, and the inner support member is driven by the piston rod of the expansion cylinder to move toward the inner surface of the hub and the two are in close contact.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the inner support member is arc-shaped and matched with the inner circumferential surface of the wheel hub, so that after the two are in contact, the inner support member can fully fit with the inner circumferential surface of the wheel hub.

[0009] On the basis of the above solution and as a preferred solution of the above solution: the inner support member is made of copper; and a flexible metal wire is provided between the support column and the inner support member.

[0010] On the basis of the above solution and as a preferred solution of the above solution: conductive rubber is fixedly arranged on the outer peripheral surface of the inner support member facing the inner side surface of the hub 8 .

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a balancing assembly, which includes a fixed plate, a guide rod and a connecting plate, the inner support member is fixed on the guide rod, the fixed plate is fixed on the cylinder, a guide hole for the guide rod is opened on the fixed plate, and the connecting plate fixedly connects the piston rod of the cylinder with the guide rod.

[0012] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: the conical head on the top of the support column of the wheel hub clamp cooperates with the conical surface of the mounting hole of the wheel hub to achieve rapid centering and positioning; by setting a clamping assembly, the opening cylinder of the clamping assembly drives the inner support member to further support the inner side surface of the wheel hub, thereby improving its clamping stability; and the inner support member is made of conductive material, and the inner support member is connected to the support column by a wire. Since the support column is connected to the product motor, when the inner support member contacts the wheel hub, the wheel hub will be electrified; of course, in order to avoid scratching the inner side surface of the wheel hub when the inner support member contacts the inner side surface of the wheel hub, conductive rubber is further set, so that on the one hand, the wheel hub is protected, and on the other hand, the voltage of the product motor can still be transmitted to the wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure in which the wheel hub is installed on the wheel hub fixture;

[0015] Figure 3 It is a schematic diagram of the clamping assembly structure. Implementation

[0016] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution in the embodiment will be clearly and completely described below in conjunction with the drawings in the embodiment. Obviously, the described embodiment is only a part of the embodiment of this application, not all embodiments. Based on the given embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0017] See Figure 1-3 As shown, the present application discloses a magnetron sputtering coating device for the surface of an aluminum alloy wheel hub, comprising an emission electrode 1, a magnet 2, a target material 3, a baffle 4, an argon source 5 and a product electrode 6. The target material 3 is used as a target cathode. Argon gas sent out from an outlet 51 of the argon source 5 is ionized to form argon ions that bombard the target material 3, generating cathode sputtering, and sputtering target material atoms onto the wheel hub 8 to form a deposition layer, that is, a coating layer; in addition, cooling water (see Figure 1 The arrow direction shows the circulation direction of cooling water), and the emitter electrode 1 is cooled by cooling water. Of course, it should be noted that the above environment is a vacuum environment.

[0018] In order to achieve the clamping of the wheel hub 8, the present embodiment includes a wheel hub clamp 7; the wheel hub clamp 7 includes a support column 71 and a clamping assembly, and the top of the support column 71 is a conical head 711; because when the wheel hub 8 is installed with the automobile axle, there is a conical positioning surface on the automobile axle, and correspondingly, a matching conical hole 82 is also provided on the axle 8, for this reason, in the present embodiment, the wheel hub 8 is placed on the top of the support column 71, and the conical head 711 is embedded in the mounting hole of the wheel hub 8, and the positioning of the wheel hub is achieved; in order to further improve the clamping stability, in the present embodiment, the clamping assembly is located on the inner side of the wheel hub 8, and the clamping assembly supports the wheel hub 8 from the inner side of the wheel hub 8, so as to keep the wheel hub stably clamped and positioned. Specifically, the clamping assembly includes a symmetrically or centrally symmetrically arranged expansion cylinder 73 and an inner support member 74, and the inner support member 74 is driven by the piston rod 731 of the expansion cylinder 73 to move toward the inner surface of the wheel hub 8 and the two are in close contact. The inner support member 74 is preferably arc-shaped and matches the inner circumference of the hub 8, so that after the two are in contact, the inner support member 74 can fully fit the inner circumference of the hub 8. In order to achieve the conduction between the product electrode and the hub after the inner support member 74 contacts the hub 8, the inner support member 74 is preferably made of copper in this embodiment; and a flexible metal wire is provided between the support column 71 and the inner support member 74. Since the support column 71 is connected to the product electrode 6, the electrode can be connected to the inner support member 74 through the flexible metal wire, and then conducted to the hub.

[0019] In addition, in order to prevent the inner side of the wheel hub from being scratched when the inner support member contacts the inner side of the wheel hub, a conductive rubber is fixed on the outer peripheral surface of the inner support member 74 facing the inner side of the wheel hub 8. On the one hand, the wheel hub is protected, and on the other hand, the voltage of the product motor can still be transmitted to the wheel hub.

[0020] Since the piston rod of the cylinder may rotate due to unbalanced force when driving the inner support member 74 to move, the inner support member may be deflected. Therefore, the embodiment preferably further includes a balancing assembly, which includes a fixing plate 77, a guide rod 76 and a connecting plate 75. The inner support member 74 is fixed on the guide rod 76, the fixing plate 77 is fixed on the cylinder 73, a guide hole for the guide rod 76 is opened on the fixing plate 77, and the connecting plate 75 fixes the piston rod of the cylinder 73 to the guide rod 76. Then, through the setting of the balancing assembly, the freedom of rotation of the piston rod is limited, thereby solving the problem of rotation of the inner support member, so that it does not deflect, and thus reliably supports the wheel hub.

[0021] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for magnetron sputtering coating on the surface of an aluminum alloy wheel hub, comprising an emission electrode (1), a magnet (2), a target material (3), a baffle (4), an argon gas source (5) and a product electrode (6), characterized in that: include A wheel hub clamp (7); the wheel hub clamp (7) comprises a support column (71) and a clamping assembly, the top of the support column (71) being a conical head (711); the wheel hub (8) is placed on the top of the support column (71), the conical head (711) being embedded in a mounting hole of the wheel hub (8); the clamping assembly is located on the inner side of the wheel hub (8), and the clamping assembly supports the wheel hub (8) from the inner side of the wheel hub (8).

2. The device for magnetron sputtering coating on the surface of an aluminum alloy wheel hub according to claim 1, characterized in that: The clamping assembly comprises a symmetrically or centrosymmetrically arranged spreading cylinder (73) and an inner supporting member (74), wherein the inner supporting member (74) is driven by a piston rod (731) of the spreading cylinder (73) to move toward the inner surface of the wheel hub (8), and the two are in close contact.

3. The device for magnetron sputtering coating on the surface of an aluminum alloy wheel hub according to claim 2, characterized in that: The inner support member (74) is arc-shaped and is adapted to the inner circumferential surface of the wheel hub (8), so that after the two are in contact, the inner support member (74) can fully fit the inner circumferential surface of the wheel hub (8).

4. The device for magnetron sputtering coating on the surface of an aluminum alloy wheel hub according to claim 3, characterized in that: The inner support member (74) is made of copper; and a flexible metal wire is provided between the support column (71) and the inner support member (74).

5. The device for magnetron sputtering coating on the surface of an aluminum alloy wheel hub according to claim 4, characterized in that: Conductive rubber is fixedly disposed on the outer peripheral surface of the inner support member (74) facing the inner side surface of the hub (8).

6. The device for magnetron sputtering coating on the surface of an aluminum alloy wheel hub according to claim 5, characterized in that: The invention also comprises a balancing assembly, which comprises a fixing plate (77), a guide rod (76) and a connecting plate (75), wherein the inner support member (74) is fixedly mounted on the guide rod (76), the fixing plate (77) is fixedly mounted on the cylinder (73), a guide hole for the guide rod (76) is formed on the fixing plate (77), and the connecting plate (75) fixedly connects the piston rod of the cylinder (73) and the guide rod (76).

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