A dustproof automobile sheet metal part surface treatment device
By installing a protective cover, connecting pipe, and dust suction tank on the grinding machine, and using external dust collection equipment to extract dust, the problem of dust diffusion during the grinding of sheet metal parts is solved, and a safe working environment is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU BAIJIE ZHONGYANG AUTO PARTS CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-21
AI Technical Summary
Existing automotive sheet metal surface grinding equipment tends to generate a lot of dust during use, which affects the safety of operators.
A dust-proof surface treatment device for automotive sheet metal parts was designed. By setting a protective cover, connecting pipe, air guide hose and dust suction groove on the main body of the grinder, the dust generated during grinding is sucked up by external dust suction equipment to prevent its spread.
It effectively reduces dust dispersion, protects the health of operators, and ensures a safe working environment.
Smart Images

Figure CN224526779U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet metal processing technology, and more specifically, to a dust-proof surface treatment device for automotive sheet metal parts. Background Technology
[0002] Automotive sheet metal work is a technical method in car repair. Sheet metal repair refers to the repair of a car body after a collision, encompassing all work except for anti-corrosion and decorative painting. This includes analyzing car body damage, measuring the car body, shaping the sheet metal, stretching and straightening, stress-relieving welding, and assembling and adjusting car body accessories. Similarly, some car parts inevitably suffer damage during use, such as deformation, breakage, or uneven surfaces. Sheet metal work is then used in these cases. After sheet metal work, the surface of the sheet metal parts needs to be sanded to ensure a smooth finish for subsequent painting. Currently, handheld sanders are commonly used for sanding automotive sheet metal parts, as they are simple and convenient to operate.
[0003] However, this type of grinding device easily generates a lot of dust when it is working. If the operator inhales a lot of dust, it will affect their own safety. To address this issue, a dust-proof surface treatment device for automotive sheet metal parts is proposed. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a dust-proof automotive sheet metal surface treatment device. The technical problem to be solved by the present invention is: how to prevent dust from spreading outward during the grinding process of automotive sheet metal parts.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust-proof automotive sheet metal surface treatment device, comprising a grinding machine body, a connecting mounting plate at one end of the grinding machine body, a drive mounting seat at the outer end of the connecting mounting plate, a protective cover at the middle of the upper end of the drive mounting seat, a concave adapter groove on one side of the outer end face of the protective cover, and a limiting mounting block inside the concave adapter groove;
[0006] The inner end face of the protective cover is provided with a first limiting block on the side near the concave adapter groove, and a second limiting block is provided on one side of the outer end face of the limiting mounting block. The inner sides of the first limiting block and the second limiting block are provided with adapter support blocks, and the outer end face of the adapter support block is provided with a support spring.
[0007] In a preferred embodiment, a handle is provided at one end of the main body of the grinder, and an auxiliary handle is provided on one side of the outer end face of the main body of the grinder;
[0008] A power cord is provided on the outer side of one end of the handle, and a mounting protrusion is provided in the middle of the upper part of the grinder body.
[0009] In a preferred embodiment, the upper end of the mounting protrusion is provided with a clamping groove, and the upper end of the protective cover is provided with a connecting pipe;
[0010] A flexible air guide tube is provided on one side of the outer end face of the connecting pipe, and a grinding disc is provided on the outside of the lower end of the drive mounting base, with a grinding pad provided at the lower end of the grinding disc.
[0011] In a preferred embodiment, the lower end of the polishing pad is provided with an arc-shaped groove, the middle part of the upper end of the polishing disc is provided with a circular mounting block, and the upper end of the circular mounting block is provided with a square insert rod.
[0012] The square insert passes through the end face of the drive mount and extends to the upper end of the drive mount.
[0013] In a preferred embodiment, the outer end of the limiting mounting block is provided with an adjusting pull ring, and the outer end face of the upper side of the square plug rod is provided with a concave limiting groove.
[0014] In a preferred embodiment, a dust collection groove is provided in the middle of the circular mounting block and the square insert, and a U-shaped mounting groove is provided on the end face of the limiting mounting block;
[0015] The inner end face of the concave adapter groove is adapted to the outer end face of the limiting mounting block, and the grip and auxiliary grip are set in a vertical state in the top view.
[0016] In a preferred embodiment, the inner end face of the clamping groove is adapted to the outer end face of the air guide hose, and the outer end face of the connecting pipe is adapted to the inner end face of the air guide hose.
[0017] The outer end face of the concave limiting groove is adapted to the inner end face of the U-shaped mounting groove. The U-shaped mounting groove is set to expand outward on the inner side in the top view direction. The inner end face of the outward expansion part of the U-shaped mounting groove is adapted to the outer end face of the circular mounting block in the top view direction.
[0018] The technical effects and advantages of this utility model are as follows:
[0019] In actual use, by adjusting the pull ring, the concave fitting groove, the limiting mounting block, the first limiting block, the second limiting block, and the support spring in their corresponding configurations, the adjusting pull ring can be pulled to pull the limiting mounting block outward, thus facilitating the disassembly and replacement of the grinding disc. At the same time, the support spring will press against the first and second limiting blocks, causing the limiting mounting block to move inward, thus facilitating the U-shaped mounting groove to fit inside the concave limiting groove, thereby facilitating the locking of the square insert rod.
[0020] With the protective cover, connecting pipe, air guide hose, arc groove, and dust collection groove in their corresponding configurations, when grinding automotive sheet metal parts, the external dust collection equipment will draw the gas inside the protective cover to the outside, thereby creating a high negative pressure inside the protective cover. The dust generated during grinding will be quickly drawn into the inside of the protective cover from the arc groove and dust collection groove, thus preventing workers from inhaling dust. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model from a bottom view.
[0023] Figure 3 This is a top view cross-sectional structural diagram of the protective cover of this utility model.
[0024] Figure 4 This is a schematic diagram of the cross-sectional connection structure of the grinding disc of this utility model.
[0025] The attached figures are labeled as follows: 1. Grinding machine body; 2. Connecting mounting plate; 3. Handle; 4. Power cord; 5. Drive mounting base; 6. Protective cover; 7. Connecting pipe; 8. Air duct; 9. Mounting protrusion; 10. Clamping groove; 11. Grinding disc; 12. Grinding pad; 13. Circular mounting block; 14. Square insert rod; 15. Concave limiting groove; 16. Arc groove; 17. Dust suction groove; 18. Adaptive support block; 19. Concave adaptable groove; 20. Limiting mounting block; 21. Adjusting pull ring; 22. First limiting block; 23. Second limiting block; 24. U-shaped mounting groove; 25. Support spring; 26. Auxiliary handle. Detailed Implementation
[0026] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this disclosure will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.
[0027] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more exemplary embodiments. Numerous specific details are provided in the following description to give a full understanding of exemplary embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced with one or more of the specific details omitted, or other methods, components, steps, etc., can be employed. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.
[0028] This utility model provides a dust-proof surface treatment device for automotive sheet metal parts, such as... Figure 1 and 2 As shown, it includes a grinding machine body 1, one end of which is provided with a connecting mounting plate 2, and the outer end of the connecting mounting plate 2 is provided with a drive mounting base 5;
[0029] A protective cover 6 is provided in the middle of the upper end of the drive mounting base 5. A handle 3 is provided at one end of the grinding machine body 1. An auxiliary handle 26 is provided on one side of the outer end face of the grinding machine body 1. When the operator holds the handle 3 and the auxiliary handle 26 to grind the sheet metal parts of the car, it can effectively increase the stability of the grinding machine body 1. A power cord 4 is provided on the outer side of one end of the handle 3, which can be easily connected to an external power source through the power cord 4, thereby facilitating the use of the grinding machine body 1.
[0030] The upper part of the grinding machine body 1 is provided with a mounting protrusion 9, the upper end of the mounting protrusion 9 is provided with a clamping groove 10, the upper end of the protective cover 6 is provided with a connecting pipe 7, and one side of the outer end face of the connecting pipe 7 is provided with a duct 8. The operator connects one end of the duct 8 to an external vacuum cleaner, and then clamps the duct 8 inside the clamping groove 10, thereby effectively increasing the stability of the connection between the duct 8 and the connecting pipe 7. When the external vacuum cleaner is working, it will suck the dust inside the protective cover 6 into the pipe 7 and the duct 8.
[0031] The lower end of the drive mounting base 5 is provided with a grinding disc 11. The inner end face of the clamping groove 10 is adapted to the outer end face of the air guide hose 8, and the outer end face of the connecting pipe 7 is adapted to the inner end face of the air guide hose 8.
[0032] like Figure 3 and 4 As shown, a concave adapter groove 19 is provided on one side of the outer end face of the protective cover 6. A limiting installation block 20 is provided inside the concave adapter groove 19, which can facilitate the sliding of the limiting installation block 20 inside the concave adapter groove 19. A first limiting block 22 is provided on the inner end face of the protective cover 6 near the concave adapter groove 19.
[0033] A second limiting block 23 is provided on one side of the outer end face of the limiting mounting block 20. The inner sides of the first limiting block 22 and the second limiting block 23 are provided with an adapter support block 18. The outer end face of the adapter support block 18 is provided with a support spring 25.
[0034] The lower end of the grinding disc 11 is provided with a grinding pad 12, the lower end of the grinding pad 12 is provided with an arc groove 16, the outer end face of the upper side of the square insert rod 14 is provided with a concave limiting groove 15, and the square insert rod 14 passes through the end face of the drive mounting base 5 and extends to the upper end of the drive mounting base 5.
[0035] The outer end of the limiting mounting block 20 is provided with an adjusting pull ring 21. The middle of the upper end of the grinding disc 11 is provided with a circular mounting block 13. The upper end of the circular mounting block 13 is provided with a square insert rod 14. The middle of the circular mounting block 13 and the square insert rod 14 is provided with a dust suction groove 17. When grinding automotive sheet metal parts, the worker can pass the square insert rod 14 through the end face of the drive mounting seat 5. Then, the worker pulls the adjusting pull ring 21 at the same time. The adjusting pull ring 21 will pull the limiting mounting block 20 outward, and then insert the concave limiting groove 15. Inside the protective cover 6, the upper end face of the circular mounting block 13 is made to fit against the lower end face of the drive mounting base 5. After the square insert rod 14 is inserted and stabilized, the operator can loosen the adjusting pull ring 21. The support spring 25 will then press against the first limit block 22 and the second limit block 23. The support spring 25 will apply an outward elastic force to the first limit block 22 and the second limit block 23, thereby pressing against the second limit block 23 to move to one side inside the protective cover 6, so that the U-shaped mounting groove 24 is inserted into the concave limit groove 15, thereby locking the grinding disc 11.
[0036] The end face of the limiting mounting block 20 is provided with a U-shaped mounting groove 24, and the inner end face of the concave fitting groove 19 is adapted to the outer end face of the limiting mounting block 20. The handle 3 and the auxiliary handle 26 are set in a vertical state in the top view. When the operator disassembles and replaces the grinding disc 11, he can pull the grinding disc 11 out from the inside of the drive mounting base 5 by holding the adjustment pull ring 21.
[0037] The outer end face of the concave limiting groove 15 is adapted to the inner end face of the U-shaped mounting groove 24. The U-shaped mounting groove 24 is set to expand outward on the inner side in the top view direction. The inner end face of the outward expansion portion of the U-shaped mounting groove 24 is adapted to the outer end face of the circular mounting block 13 in the top view direction.
[0038] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dust-proof surface treatment device for automotive sheet metal parts, comprising a grinding machine body (1), characterized in that: The grinding machine body (1) has a connecting mounting plate (2) at one end, a drive mounting seat (5) at the outer end of the connecting mounting plate (2), a protective cover (6) at the middle of the upper end of the drive mounting seat (5), a concave adapter groove (19) on one side of the outer end face of the protective cover (6), and a limiting mounting block (20) inside the concave adapter groove (19). The inner end face of the protective cover (6) is provided with a first limiting block (22) on the side near the concave adapter groove (19), and the outer end face of the limiting mounting block (20) is provided with a second limiting block (23). The inner sides of the first limiting block (22) and the second limiting block (23) are provided with adapter support blocks (18), and the outer end face of the adapter support block (18) is provided with a support spring (25).
2. The dust-proof automotive sheet metal surface treatment device according to claim 1, characterized in that: One end of the main body (1) of the grinder is provided with a handle (3), and one side of the outer end face of the main body (1) of the grinder is provided with an auxiliary handle (26); A power cord (4) is provided on the outer side of one end of the handle (3), and a mounting protrusion (9) is provided in the middle of the upper end of the grinding machine body (1).
3. The dust-proof automotive sheet metal surface treatment device according to claim 2, characterized in that: The upper end of the mounting protrusion (9) is provided with a clamping groove (10), and the upper end of the protective cover (6) is provided with a connecting pipe (7); A duct hose (8) is provided on one side of the outer end face of the connecting pipe (7), a grinding disc (11) is provided on the lower end of the drive mounting base (5), and a grinding pad (12) is provided on the lower end of the grinding disc (11).
4. The dust-proof automotive sheet metal surface treatment device according to claim 3, characterized in that: The lower end of the polishing pad (12) is provided with an arc-shaped groove (16), the middle part of the upper end of the polishing disc (11) is provided with a circular mounting block (13), and the upper end of the circular mounting block (13) is provided with a square insert rod (14). The square insert (14) passes through the end face of the drive mounting base (5) and extends to the upper end of the drive mounting base (5).
5. The dust-proof automotive sheet metal surface treatment device according to claim 4, characterized in that: The outer end of the limiting installation block (20) is provided with an adjusting pull ring (21), and the outer end face of the square plug rod (14) is provided with a concave limiting groove (15).
6. The dust-proof automotive sheet metal surface treatment device according to claim 5, characterized in that: The circular mounting block (13) and the square insert (14) have a dust collection groove (17) in the middle, and the end face of the limiting mounting block (20) has a U-shaped mounting groove (24).