Electrostatic powder spraying device for hub

Abstract

The utility model relates to a hub electrostatic powder spraying device, and belongs to the technical field of hub production, the hub electrostatic powder spraying device comprises a spraying chamber, a spray gun mechanism and a workpiece bearing mechanism, the spray gun mechanism and the workpiece bearing mechanism are mounted in the spraying chamber, the workpiece bearing mechanism comprises a rotating shaft, a conductive slip ring and a driving motor, one end of the conductive slip ring is fixed to the bottom of the spraying chamber, and the other end of the conductive slip ring is fixed to the driving motor; the rotating shaft is rotationally arranged in the spraying chamber, the bottom of the rotating shaft is fixed to one end of a conductive slip ring, the driving motor is used for driving the rotating shaft to rotate, a connecting part is fixed to the top of the rotating shaft, a hanging bracket used for placing a hub is connected to the connecting part in a matched mode, and the conductive slip ring is electrically connected with a positive electrode and is grounded. The automatic spraying device is simple in structure and easy to produce and manufacture, the servo guide rail sliding table works to drive the spraying gun to move up and down, the rotating shaft drives the hub to rotate, the spraying adsorption effect can be improved, the spraying time can be saved, automatic spraying is achieved, and the labor intensity of workers is greatly relieved.

Description

Technical Field

[0001] The present application relates to the technical field of wheel hub production, and in particular to an electrostatic powder spraying device for a wheel hub. Background Art

[0002] Electrostatic spraying is a method of spraying that uses a high-voltage electrostatic field to make negatively charged paint particles move in a directional direction opposite to the electric field and adsorb the paint particles on the surface of the workpiece. Electrostatic spraying equipment consists of a spray gun and an electrostatic spraying high-voltage power supply.

[0003] During the production process of the wheel hub, it is also necessary to use electrostatic powder spraying equipment for spraying. In the prior art, in generally small-scale wheel hub processing plants, workers generally use handheld spray guns to spray the hanging wheel hubs. This spraying method has high labor intensity and low spraying efficiency.

[0004] Therefore, it is urgent to develop a spraying device with low cost and good spraying effect to improve production efficiency. Utility Model Content

[0005] The purpose of the present application is to provide a wheel hub electrostatic powder spraying device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present application provides a wheel hub electrostatic powder spraying device adopting the following technical solution:

[0007] A wheel hub electrostatic powder spraying device comprises a spraying chamber, a spray gun mechanism installed in the spraying chamber and a workpiece bearing mechanism, wherein the workpiece bearing mechanism comprises a rotating shaft, a conductive slip ring and a driving motor, wherein one end of the conductive slip ring is fixed to the bottom of the spraying chamber, the rotating shaft is rotatably arranged in the spraying chamber, and the bottom of the rotating shaft is fixed to one end of the conductive slip ring, the driving motor is used to drive the rotating shaft to rotate, a connecting portion is fixed to the top of the rotating shaft, a hanger for placing the wheel hub is matched and connected to the connecting portion, and the conductive slip ring is electrically connected to the positive electrode and grounded;

[0008] The spray gun mechanism includes a lifting assembly and a spray gun. The lifting assembly is fixed in the spray chamber. The spray gun is installed on the lifting assembly and is arranged toward the workpiece bearing mechanism. The spray gun is electrically connected with a negative pole.

[0009] Preferably, the end surface of the connecting part is symmetrically provided with insertion holes, the hanger includes a stop block, an insertion rod is fixed at the bottom of the stop block corresponding to the position of the insertion hole, a guide rod and a hanging ring are fixed at the top of the stop block, and the guide rod is adapted to the screw hole on the surface of the hub.

[0010] By adopting the above technical solution, the wheel hub is sleeved on the guide rod, and the manipulator lifts the wheel hub through the lifting ring. The wheel hub is suspended on the stop block under the action of its own gravity. The manipulator lifts the hanger with the wheel hub installed onto the rotating shaft in the spray chamber. The rotation of the rotating shaft can drive the wheel hub to rotate, and the placement and unloading of the wheel hub are relatively simple.

[0011] The lifting assembly comprises a servo guide rail slide table vertically fixed in the spraying chamber, and the spray gun is fixed on the slide table of the servo guide rail slide table.

[0012] Preferably, in order to prevent the spray powder from affecting the conductive slip ring and the drive motor, dust covers are provided on the surfaces of the conductive slider and the drive motor, the rotating shaft passes through the dust cover, and a shaft seal is provided between the rotating shaft and the dust cover.

[0013] In order to prevent powder from flying out of the spraying room and affecting the environment, a sealing door is installed on the side of the spraying room.

[0014] To summarize, the present application includes at least one of the following beneficial technical effects: the wheel hub electrostatic powder spraying device has a simple structure and is easy to manufacture. By providing a servo guide slide to drive the spray gun to move up and down and a rotating shaft to drive the wheel hub to rotate, it can not only improve the spraying adsorption effect and save spraying time, but also realize automatic spraying, greatly reducing the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the embodiment of the present application in the overall use state.

[0016] Figure 2 It is a schematic diagram of the structure in the state where the dust cover is hidden in the embodiment of the present application.

[0017] Figure 3 It is a schematic diagram used to illustrate the connection relationship between the hanger and the connecting part in the embodiment of the present application.

[0018] Explanation of the reference numerals: 1. spray chamber; 2. spray gun mechanism; 21. servo guide slide; 22. spray gun; 3. workpiece carrying mechanism; 31. rotating shaft; 32. conductive slip ring; 33. driving motor; 34. connecting part; 341. socket; 35. hanger; 351. stop block; 352. insertion rod; 353. guide rod; 354. lifting ring; 4. dust cover. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-3 This application is described in further detail.

[0020] The present application discloses a wheel hub electrostatic powder spraying device, referring to Figure 1-3, including a spraying room 1, a spray gun mechanism 2 installed in the spraying room 1 and a workpiece carrying mechanism 3, a sealing door (not shown in the figure) is installed on the side of the spraying room 1, the workpiece carrying mechanism 3 includes a rotating shaft 31, a conductive slip ring 32 and a driving motor 33, one end of the conductive slip ring 32 is fixed to the bottom of the spraying room 1, the rotating shaft 31 is rotatably arranged in the spraying room 1, and the bottom of the rotating shaft 31 is fixed to one end of the conductive slip ring 32, the driving motor 33 is used to drive the rotating shaft 31 to rotate, a connecting part 34 is fixed on the top of the rotating shaft 31, a hanger 35 for placing the wheel hub is matched and connected to the connecting part 34, and the conductive slip ring 32 is electrically connected to the positive pole and grounded;

[0021] The spray gun mechanism 2 includes a lifting assembly and a spray gun 22. The lifting assembly is fixed in the spray chamber 1. The spray gun 22 is installed on the lifting assembly, and the spray gun 22 is set toward the workpiece supporting mechanism 3. The spray gun 22 is electrically connected with a negative pole, and the spray gun 22 is connected to the air source and the powder tank. Specifically, the lifting assembly includes a servo guide rail slide 21 vertically fixed in the spray chamber 1, and the spray gun 22 is fixed on the slide of the servo guide rail slide 21.

[0022] Reference Figure 3 The end surface of the connecting portion 34 is symmetrically provided with plug holes 341, and the hanger 35 includes a stop block 351. An insertion rod 352 is fixed at the bottom of the stop block 351 at a position corresponding to the plug hole 341. A guide rod 353 and a hanging ring 354 are fixed at the top of the stop block 351. The guide rod 353 is adapted to the screw hole on the surface of the hub.

[0023] The wheel hub is sleeved on the guide rod 353, and the manipulator lifts the wheel hub through the lifting ring 354. The wheel hub is suspended on the stop block 351 under the action of its own gravity. The manipulator lifts the hanger 35 with the wheel hub installed on the rotating shaft 31 in the spray chamber 1. The rotation of the rotating shaft 31 can drive the wheel hub to rotate.

[0024] Reference Figure 1 and Figure 2 In order to prevent the spraying powder from affecting the conductive slip ring 32 and the drive motor 33, a dust cover 4 is provided on the surface of the conductive slider and the drive motor 33, the rotating shaft 31 passes through the dust cover 4, and a shaft seal is provided between the rotating shaft 31 and the dust cover 4.

[0025] The implementation principle of a wheel hub electrostatic powder spraying device in the embodiment of the present application is:

[0026] The staff uses a manipulator to lift the wheel hub onto the rotating shaft 31. The driving motor 33 drives the rotating shaft 31 to rotate, thereby driving the wheel hub to rotate. The servo guide slide 21 drives the spray gun 22 to move up and down, and sprays powder toward the wheel hub. Based on the electrostatic principle of charge, under the action of a high-voltage power supply, the negatively charged powder is adsorbed onto the positively charged wheel hub and can be evenly attached to the wheel hub. When the powder is attached to a certain thickness, like charges repel each other and the powder can no longer be adsorbed, thereby making the powder layer thickness of each part uniform.

[0027] In this process, the servo guide slide 21 drives the spray gun 22 to move up and down, and the rotating shaft 31 drives the hub to rotate, which can greatly improve the adsorption effect of the powder and save the spraying time.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wheel hub electrostatic powder spraying device, comprising a spraying chamber (1), a spray gun mechanism (2) installed in the spraying chamber (1) and a workpiece carrying mechanism (3), characterized in that: The workpiece bearing mechanism (3) comprises a rotating shaft (31), a conductive slip ring (32) and a driving motor (33); one end of the conductive slip ring (32) is fixed to the bottom of the spray chamber (1); the rotating shaft (31) is rotatably arranged in the spray chamber (1), and the bottom of the rotating shaft (31) is fixed to one end of the conductive slip ring (32); the driving motor (33) is used to drive the rotating shaft (31) to rotate; a connecting portion (34) is fixed to the top of the rotating shaft (31); a hanger (35) for placing a wheel hub is matched and connected to the connecting portion (34); the conductive slip ring (32) is electrically connected to a positive pole and is grounded; The spray gun mechanism (2) comprises a lifting assembly and a spray gun (22); the lifting assembly is fixed in the spray chamber (1); the spray gun (22) is mounted on the lifting assembly, and the spray gun (22) is arranged toward the workpiece supporting mechanism (3); and the spray gun (22) is electrically connected to a negative electrode.

2. The wheel hub electrostatic powder spraying device according to claim 1, characterized in that: The end surface of the connecting portion (34) is symmetrically provided with insertion holes (341); the hanger (35) comprises a stop block (351); a plug rod (352) is fixed at the bottom of the stop block (351) at a position corresponding to the insertion hole (341); a guide rod (353) and a hanging ring (354) are fixed at the top of the stop block (351); and the guide rod (353) is adapted to the screw hole on the surface of the wheel hub.

3. The wheel hub electrostatic powder spraying device according to claim 1, characterized in that: The lifting assembly comprises a servo guide rail slide (21) vertically fixed in the spraying room (1), and the spray gun (22) is fixed on the slide of the servo guide rail slide (21).

4. The wheel hub electrostatic powder spraying device according to claim 1, characterized in that: A dust cover (4) is provided on the surface of the conductive slip ring and the drive motor (33), the rotating shaft (31) passes through the dust cover (4), and a shaft seal is provided between the rotating shaft (31) and the dust cover (4).

5. The wheel hub electrostatic powder spraying device according to claim 1, characterized in that: A sealing door is installed on the side of the spraying room (1).

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