Protective lifting device special for coating process
By using protective lifting devices of conical nuts and threaded pin components in the coating process, the problem that the protective devices in the prior art cannot meet the lifting requirements and shield the paint position is solved, effective protection and efficient lifting are achieved, and the risks and costs of subsequent paint repair are reduced.
Patent Information
- Application Number
- CN202421571013.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-04
AI Technical Summary
During the production process of mechanical equipment, non-coated positions need to be protected before coating. The protective devices used in the prior art cannot meet the lifting requirements and are easily shielded from the spray paint position, resulting in high risks and costs for subsequent paint repairs and low production efficiency.
A special protective lifting device for the coating process is adopted, including a tapered nut and a threaded pin assembly, which extends into the workpiece processing hole through the body and the tapered nut part of the tapered structure, fits with the inner wall, closes the processing hole, and lifts the workpiece through the lifting lugs.
This device can effectively protect the processing holes of the workpiece, prevent paint from entering, and at the same time meet the lifting requirements of the workpiece, reduce the need for subsequent paint repairs, and improve production efficiency.
Smart Images
Figure CN222842339U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coating protection, in particular to a special protective lifting device for a coating process. Background Art
[0002] During the production of mechanical equipment, for rust prevention and aesthetics, the surfaces of many parts have painting requirements. During painting, the workpiece needs to be lifted and rotated with the movement of the assembly line to achieve the purpose of automatic painting. In general, installation areas such as machined holes, machined surfaces, and threaded holes have no requirements for painting, which requires protection of the above non-painting positions. In the prior art, high-temperature resistant protective plugs or protective plates, bolts and nuts are often used for pre-painting protection, while workpieces protected by silicone plugs and protective plates, bolts, and nuts not only cannot meet the lifting requirements, but also easily mask the painting position, requiring subsequent paint touch-ups. Workpieces that have been painted are at risk of missing touch-ups, and there is also a risk of color difference on the surface, which is costly and has low production efficiency.
[0003] Therefore, there is an urgent need for a special protective lifting device for a coating process to solve the above technical problems. Utility Model Content
[0004] The utility model aims to overcome the problems in the background technology and provide a special protective lifting device for a coating process, which can meet the requirements of spray protection and the lifting requirements of workpieces.
[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts a technical solution specifically as follows: a protective lifting device dedicated to a coating process, comprising a conical nut and a threaded pin assembly, the outer surface of the conical nut is a conical structure, and a threaded groove is arranged at one end thereof, the threaded pin assembly comprises a body with a conical structure on the outer surface, one end of the body is connected with a lifting ear, and the other end is connected with a connecting column, and the connecting column is connected with a threaded column on the side away from the body, and the threaded column is adapted to the threaded groove. When installed, the threaded pin assembly is inserted from one end of a workpiece processing hole, and the body of the conical structure fits with the inner wall of the workpiece processing hole, that is, the end part of the body with a small outer diameter extends into the workpiece processing hole; the conical nut is inserted from the other end of the workpiece processing hole and is connected to the threaded column through the threaded groove, at which time the body and the conical nut are partially inserted into the workpiece processing hole and fit with the inner walls at both ends of the workpiece processing hole, so that the two ends of the processing hole can be closed and protected, so that the paint cannot enter the workpiece processing hole; when spraying paint, the workpiece can be lifted by the lifting ear, and the support point is on the body and the conical nut.
[0006] Furthermore, the thread groove is located at the end of the outer side of the conical nut with a smaller diameter, so that the conical nut can be partially extended into the workpiece processing hole.
[0007] Furthermore, the main body, the connecting column and the threaded column are integrally arranged, and the connection strength is greater. The connecting column is located at the end of the outer side of the main body with a smaller diameter, so that part of the main body can be extended into the workpiece processing hole.
[0008] Furthermore, the lifting lug is a U-shaped structure and is welded to the body, so the connection is more stable.
[0009] Compared with the prior art, the beneficial effects of the utility model are:
[0010] 1. The outer surfaces of the body and the tapered nut on the threaded pin assembly are both tapered structures. During installation, a portion of the body and the tapered nut can be extended into the workpiece processing hole and fit with the inner walls at both ends of the workpiece processing hole, thereby closing the workpiece processing hole and protecting it from paint entering the processing hole. At the same time, since it is blocked from the inner walls at both ends of the processing hole, the device will not cover the outside of the workpiece during painting, so there is no need for subsequent paint patching; the setting of the lifting lug meets the lifting requirements, thereby greatly improving the production efficiency of the painting process. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0013] Figure 2 It is a side view schematic diagram of the threaded pin assembly in the utility model.
[0014] Figure 3 It is a schematic diagram of the overall structure of the threaded pin assembly in the utility model.
[0015] Figure 4 It is a schematic diagram of the utility model being connected to a workpiece.
[0016] Among them, the figure markings are: 1. conical nut; 2. threaded pin assembly; 3. body; 4. lifting ear; 5. connecting column; 6. threaded column. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0018] Example: Figure 1-Figure 4As shown, this embodiment provides a protective lifting device dedicated to a coating process, including a conical nut 1 and a threaded pin assembly 2. The outer surface of the conical nut 1 is a conical structure, and a threaded groove is arranged at one end thereof. The threaded pin assembly 2 includes a body 3 with a conical structure on the outer surface, a lifting ear 4 is connected to one end of the body 3, and a connecting column 5 is connected to the other end. The connecting column 5 is connected to a threaded column 6 on the side away from the body 3, and the threaded column 6 is adapted to the threaded groove. During installation, the threaded pin assembly 2 is inserted from one end of the workpiece processing hole, and the body 3 with a conical structure fits the inner wall of the workpiece processing hole, that is, the end of the body 3 with a small outer diameter partially extends into the workpiece processing hole; the conical nut 1 is inserted from the other end of the workpiece processing hole and is connected to the threaded column 6 through the threaded groove. At this time, both the body 3 and the conical nut 1 partially extend into the workpiece processing hole. , and fit with the inner walls at both ends of the workpiece processing hole, so that the two ends of the processing hole can be closed and protected, so that the paint cannot enter the workpiece processing hole; the workpiece can be lifted by the lifting ear 4 during painting, and the support point is on the main body 3 and the conical nut 1; the threaded groove is located at the end with a smaller diameter on the outside of the conical nut 1, so that the conical nut 1 can be partially inserted into the workpiece processing hole; the main body 3, the connecting column 5 and the threaded column 6 are arranged as one body, and the connection strength is greater. The connecting column 5 is located at the end with a smaller diameter on the outside of the main body 3, so that part of the main body can be inserted into the workpiece processing hole; the lifting ear 4 is a U-shaped structure and is welded to the main body 3, and the connection is more stable. It should also be noted that the threaded groove cannot be processed into a through hole to avoid the paint entering the threaded groove during the painting process and adhering to the threaded column 6, causing difficulty in removal.
[0019] In summary, the outer surfaces of the main body 3 and the tapered nut 1 on the threaded pin assembly 2 are both tapered structures. During installation, a portion of the main body 3 and the tapered nut 2 can be extended into the workpiece processing hole and fit with the inner walls at both ends of the workpiece processing hole, thereby closing the workpiece processing hole and protecting it from paint entering the processing hole. At the same time, since it is sealed from the inner walls at both ends of the processing hole, the device will not shield the outside of the workpiece during painting, so there is no need for subsequent paint touch-ups. The setting of the lifting ear 4 meets the lifting requirements, so it can greatly improve the production efficiency of the painting process.
[0020] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A protective lifting device for a coating process, characterized in that: The invention comprises a conical nut (1) and a threaded pin assembly (2), wherein the outer surface of the conical nut (1) is a conical structure, and a threaded groove is arranged at one end thereof; the threaded pin assembly (2) comprises a body (3) with a conical outer surface, one end of the body (3) is connected with a lifting ear (4), and the other end is connected with a connecting column (5); a threaded column (6) is arranged on the side of the connecting column (5) away from the body (3), and the threaded column (6) is adapted to the threaded groove.
2. A protective lifting device for coating process according to claim 1, characterized in that: The thread groove is located at the end with a smaller outer diameter of the conical nut (1).
3. A protective lifting device for coating process according to claim 1, characterized in that: The body (3), the connecting column (5) and the threaded column (6) are integrally arranged, and the connecting column (5) is located at an end of the outer side of the body (3) with a smaller diameter.
4. A protective lifting device for coating process according to claim 1, characterized in that: The lifting lug (4) is a U-shaped structure and is welded to the body (3).