Powder-proof tray device for hub coating

Abstract

The utility model discloses an anti-powder tray device for hub coating, which comprises a vertical support rod, a rotary support cylinder is fixed at the top end of the vertical support rod, a horizontal support tray is fixed on the top end face of the rotary support cylinder, and a central through hole is formed in the middle of the horizontal support tray. A supporting spring and a center hole pressing supporting block are inserted into the rotary supporting cylinder in a sleeved mode. The top of the center hole pressing supporting block is a conical part with the large outer diameter of the bottom end and the small outer diameter of the top end, the bottom end of the supporting spring exerts force on the top face of a bottom plate of the rotary supporting cylinder, and the bottom face of the center hole pressing supporting block abuts against the top end of the supporting spring in a pressing mode. The center hole arranged in the rotary supporting cylinder presses the conical portion of the supporting block, the outer side wall of the top of the center hole can abut against the inner side wall of the lower portion of the center through hole of the hub and be matched with the center through hole, bottom sealing is achieved, powder cannot enter the inner side wall of the center through hole, and the machining precision is guaranteed.

Description

Technical field:

[0001] The utility model relates to the technical field related to wheel hub painting equipment, and more particularly to a powder-proof tray device for wheel hub painting. Background technology:

[0002] The current method of coating wheel hubs is generally powder spraying, which is a coating process that uses corona discharge to make powder coating adhere to the workpiece. After powder spraying, it is successfully applied by thermal coating.

[0003] When the wheel hub is powder sprayed, the center hole and the bottom end surface of the hub of the wheel hub cannot be sprayed with dust due to assembly requirements. Therefore, the existing method is to manually place the wheel hub on the support tray on the support rod, and then manually seal the top of the center hole with a plug or a cover. The center shaft is directly fixed in the middle of the top surface of the support tray, which is inserted into the center hole. There is a gap between the center shaft and the center hole, so that when powder spraying, some dust will enter from the gap between the bottom of the center hole and the center shaft, affecting the inner diameter accuracy of the center hole. Utility model content:

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a powder-proof tray device for wheel hub painting. The center hole of the device is arranged in the rotating support cylinder to compress the conical part of the support block, and its top outer wall can be pressed against the lower inner wall of the center through hole of the wheel hub and cooperate with it to achieve bottom sealing, so that powder will not enter the inner wall of the center through hole, thereby ensuring its processing accuracy.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A powder-proof tray device for wheel hub painting comprises a vertical support rod, a rotating support cylinder is fixed to the top end of the vertical support rod, a horizontal support tray is fixed to the top end surface of the rotating support cylinder, a central through hole is formed in the middle of the horizontal support tray, and a support spring and a center hole pressing support block are inserted into the rotating support cylinder;

[0007] The top of the center hole pressing support block is a tapered portion with a larger outer diameter at the bottom and a smaller outer diameter at the top. The bottom end of the support spring is pressed against the top surface of the bottom plate of the rotating support cylinder, and the bottom surface of the center hole pressing support block is pressed against the top of the support spring.

[0008] The top of the tapered portion extends out of the top end of the central through hole;

[0009] The top surface of the horizontal support tray is pressed against a sealing support pad, a first central through hole is formed in the middle of the sealing support pad, the top of the tapered portion extends out of the top of the first central through hole, the bottom surface of the hub of the wheel hub to be processed is pressed against the top surface of the sealing support pad, the top of the tapered portion is in the lower part of the central through hole of the hub, and the outer side wall of the tapered portion is pressed against and matched with the tapered wall surface formed on the lower inner side wall of the central through hole.

[0010] The top surface of the horizontal support tray is formed with a plurality of positioning recessed holes, and the bottom surface of the sealing support pad is formed with a plurality of positioning protrusions, which are inserted into the corresponding positioning recessed holes, and the outer side walls of the positioning protrusions are tightly attached to the inner side walls of the corresponding positioning recessed holes.

[0011] The outer diameter of the bottom end of the tapered portion is larger than the inner diameter of the central through hole.

[0012] A vertical guide column is fixed to the middle of the bottom surface of the center hole compression support block, and a guide sleeve is fixed to the top surface of the bottom plate of the rotating support cylinder. The vertical guide column is inserted into the guide sleeve, and the outer wall of the vertical guide column is tightly attached to the inner wall of the guide sleeve.

[0013] The lower part of the vertical support rod is movably connected to a fixing sleeve through a bearing, and a horizontal connecting block is fixed on the outer side wall of the fixing sleeve.

[0014] A gear plate is fixed to the bottom end of the vertical support rod.

[0015] The outstanding effects of the utility model are:

[0016] The conical portion of the support block is compressed by the center hole arranged in the rotating support cylinder, and its top outer wall can be pressed against and matched with the lower inner wall of the center through hole of the hub to achieve bottom sealing, so that powder will not enter the inner wall of the center through hole, thereby ensuring its processing accuracy. Description of the drawings:

[0017] Figure 1 It is a partial structural diagram of the utility model;

[0018] Figure 2 yes Figure 1 A partial enlarged view of . Specific implementation method:

[0019] For example, see Figures 1 to 2 As shown, a powder prevention tray device for wheel hub painting includes a vertical support rod 10, a rotating support cylinder 20 is fixed to the top end of the vertical support rod 10, a horizontal support tray 30 is fixed to the top surface of the rotating support cylinder 20, a central through hole 31 is formed in the middle of the horizontal support tray 30, and a support spring 32 and a center hole pressing support block 40 are inserted into the rotating support cylinder 20;

[0020] The top of the center hole pressing support block 40 is a tapered portion 41 with a larger outer diameter at the bottom and a smaller outer diameter at the top. The bottom end of the support spring 32 is applied to the top surface of the bottom plate of the rotating support cylinder 20, and the bottom surface of the center hole pressing support block 40 is pressed against the top of the support spring 32.

[0021] The top of the tapered portion 41 extends out of the top of the central through hole 31;

[0022] The top surface of the horizontal support tray 30 is pressed against a sealing support pad 50 (a sealing support pad 50 of corresponding size and thickness can be installed according to different wheel hubs 100), and a first central through hole 51 is formed in the middle of the sealing support pad 50. The top of the conical portion 41 extends out of the top of the first central through hole 51, and the bottom surface of the hub of the wheel hub 100 to be processed is pressed against the top surface of the sealing support pad 50. The top of the conical portion 41 is in the lower part of the central through hole of the hub, and the outer wall of the conical portion 41 is pressed against and matched with the conical wall surface formed on the lower inner wall of the central through hole.

[0023] Furthermore, an annular protrusion 33 is formed on the top surface of the edge of the horizontal support tray 30 .

[0024] Furthermore, an outer raised ring 52 is formed on the outer side wall of the top end of the sealing support pad 50, and the inner side wall of the outer raised ring 52 is a conical wall surface. The outer side wall of the lower end of the hub is tightly attached to the inner side wall of the outer raised ring 52 and matches with each other.

[0025] Furthermore, the top surface of the horizontal support tray 30 is formed with a plurality of positioning recesses 34, and the bottom surface of the sealing support block 50 is formed with a plurality of positioning protrusions 53. The positioning protrusions 53 are inserted into the corresponding positioning recesses 34, with the outer walls of the positioning protrusions 53 closely contacting the inner walls of the corresponding positioning recesses 34. This structure ensures a secure connection between the horizontal support tray 30 and the sealing support block 50, effectively securing the two.

[0026] Furthermore, the outer diameter of the bottom end of the tapered portion 41 is larger than the inner diameter of the central through hole 31 .

[0027] Furthermore, a vertical guide column 42 is fixed to the middle of the bottom surface of the center hole compression support block 40, and a guide sleeve 21 is fixed to the top surface of the bottom plate of the rotating support cylinder 20. The vertical guide column 42 is inserted into the guide sleeve 21, and the outer wall of the vertical guide column 42 is tightly attached to the inner wall of the guide sleeve 21.

[0028] Furthermore, the lower portion of the vertical support rod 10 is movably connected to a fixing sleeve 11 via a bearing, and a horizontal connecting block 12 is fixed to the outer side wall of the fixing sleeve 11 .

[0029] Furthermore, a gear plate 13 is fixed to the bottom end of the vertical support rod 10 .

[0030] Furthermore, an upper plug 1 is clamped on the top of the central through hole of the hub 100, and the upper plug 1 covers the top of the central through hole of the hub. A second plug 2 is clamped on the top of the PCD hole of the hub 100, and the second plug 2 covers the top of the corresponding PCD hole.

[0031] When this embodiment is in use, the wheel hub 100 can be placed on the top surface of the sealing support pad 50. When placed, the center hole clamping support block 40 is elastically supported by the support spring 32, so that the top of the conical portion 41 is in the lower part of the center through hole of the hub, and the outer side wall of the conical portion 41 is pressed against the conical wall surface formed on the lower inner side wall of the center through hole and cooperates to achieve the lower sealing of the center through hole. At the same time, the bottom surface of the hub of the wheel hub 100 is pressed against the top of the sealing support pad 50 to achieve covering sealing, and the outer side wall of the lower end of the hub is close to the inner side wall of the outer raised ring 52 and cooperates to further achieve positioning and bottom sealing, so that the external spray powder will not enter the inner side wall of the center through hole and the bottom surface of the hub, thereby ensuring the processing quality.

[0032] When in use, the horizontal connecting block 12 of this embodiment can be fixed to the chain, and the chain is operated to enable the vertical support rod 10 to move along with the chain. The bottom of the horizontal connecting block 12 can be fixed with a lower guide block, which cooperates with the guide rail installed on the bottom plate of the frame to provide guiding support. In addition, a horizontal guide portion is fixed to the upper portion of the outer wall of the fixed sleeve 11, which cooperates with the guide rail on the top plate of the frame to provide horizontal support, ensuring that the vertical support rod 10 runs stably along the chain. When it moves to the rack portion provided on a part of the guide rail, the gear plate 13 engages with the rack, thereby moving along the rack, causing the gear plate 13 to rotate, thereby driving the wheel hub 100 installed thereon to rotate (this structure is conventional and will not be described in detail here), ensuring uniform powder spraying.

Claims

1. A wheel hub coating powder prevention tray device, comprising a vertical support rod (10), characterized in that: A rotating support cylinder (20) is fixed to the top end of the vertical support rod (10), a horizontal support tray (30) is fixed to the top end surface of the rotating support cylinder (20), a central through hole (31) is formed in the middle of the horizontal support tray (30), and a support spring (32) and a central hole pressing support block (40) are inserted into the rotating support cylinder (20); The top of the center hole pressing support block (40) is a tapered portion (41) with a larger outer diameter at the bottom and a smaller outer diameter at the top. The bottom end of the support spring (32) is supported on the top surface of the bottom plate of the rotating support cylinder (20). The bottom surface of the center hole pressing support block (40) is pressed against the top of the support spring (32). The top of the tapered portion (41) extends out of the top end of the central through hole (31); The top surface of the horizontal support tray (30) is pressed against a sealing support pad (50), a first central through hole (51) is formed in the middle of the sealing support pad (50), the top end of the tapered portion (41) extends out of the top end of the first central through hole (51), the bottom surface of the hub of the wheel hub (100) to be processed is pressed against the top surface of the sealing support pad (50), the top of the tapered portion (41) is located in the lower part of the central through hole of the hub, and the outer side wall of the tapered portion (41) is pressed against the tapered wall surface formed on the inner side wall of the lower part of the central through hole and matched with each other.

2. The wheel hub coating powder prevention tray device according to claim 1, characterized in that: An annular protrusion (33) is formed on the top surface of the edge of the horizontal support tray (30).

3. The wheel hub coating powder prevention tray device according to claim 1, characterized in that: An outer convex ring (52) is formed on the outer side wall of the top end of the sealing support pad (50), and the inner side wall of the outer convex ring (52) is a conical wall surface. The outer side wall of the lower end of the hub is closely attached to the inner side wall of the outer convex ring (52) and matched with each other.

4. The wheel hub coating powder prevention tray device according to claim 1, characterized in that: A plurality of positioning recessed holes (34) are formed on the top surface of the horizontal support tray (30), and a plurality of positioning protrusions (53) are formed on the bottom surface of the sealing support pad (50). The positioning protrusions (53) are inserted into the corresponding positioning recessed holes (34), and the outer side walls of the positioning protrusions (53) are in close contact with the inner side walls of the corresponding positioning recessed holes (34).

5. The wheel hub coating powder prevention tray device according to claim 1, characterized in that: The outer diameter of the bottom end of the tapered portion (41) is larger than the inner diameter of the central through hole (31).

6. The wheel hub coating powder prevention tray device according to claim 1, characterized in that: A vertical guide column (42) is fixed to the middle of the bottom surface of the center hole pressing support block (40), and a guide sleeve (21) is fixed to the top surface of the bottom plate of the rotating support cylinder (20). The vertical guide column (42) is inserted into the guide sleeve (21), and the outer wall of the vertical guide column (42) is tightly attached to the inner wall of the guide sleeve (21).

7. The wheel hub coating powder prevention tray device according to claim 1, characterized in that: The lower part of the vertical support rod (10) is movably connected to a fixed sleeve (11) via a bearing, and a horizontal connecting block (12) is fixed on the outer side wall of the fixed sleeve (11).

8. The wheel hub coating powder prevention tray device according to claim 1, characterized in that: A gear plate (13) is fixed to the bottom end of the vertical support rod (10).

9. The wheel hub coating powder prevention tray device according to claim 1, characterized in that: An upper plug (1) is clamped on the top of the central through hole of the hub portion of the wheel hub (100), and the upper plug (1) covers the top of the central through hole of the hub portion; a second plug (2) is clamped on the top of the PCD hole of the wheel hub (100), and the second plug (2) covers the top of the corresponding PCD hole.

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