Surface polishing device for automobile fastener
By using a multi-position grinding method combining a four-legged frame, springs, and grinding rollers, the problem of low efficiency in existing automotive fastener polishing devices has been solved, achieving highly efficient fastener surface polishing.
Patent Information
- Application Number
- CN202520601505.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Existing polishing devices for automotive fasteners mostly employ a one-to-one grinding mechanism, resulting in unsatisfactory polishing efficiency.
The system employs a combination of a four-legged frame, springs, and grinding rollers. The grinding rollers are moved downwards by a push rod motor and rotated by a drive motor. Combined with an electromagnet and a cover, the grinding rollers are moved outwards synchronously, enabling multi-position grinding.
It improves the polishing efficiency of fasteners and facilitates the adjustment and replacement of grinding rollers, thus enhancing the effectiveness of the device.
Smart Images

Figure CN223917575U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polishing device technology, specifically to a polishing device for automotive fastener surfaces. Background Technology
[0002] Fasteners are a wide range of mechanical parts used for fastening connections. They are used in various industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, mold making, and hydraulics. They are characterized by a large variety of types and specifications, diverse performance and applications, and a high degree of standardization, serialization, and generalization. Automobiles also use many fasteners, such as nuts, bolts, and screws. Automotive fasteners are generally divided into two main categories: metal and plastic. Metal automotive fasteners are typically made of iron, aluminum alloys, and copper.
[0003] In the process of realizing this utility model, the inventors discovered that the following problems in the prior art have not been solved: the existing polishing devices for automotive fasteners mostly set up a set of grinding mechanisms to perform "one-to-one" grinding and polishing of fasteners, but this method has the drawback of unsatisfactory polishing efficiency and urgently needs to be improved. Therefore, we propose a polishing device for automotive fasteners. Utility Model Content
[0004] The purpose of this invention is to provide a surface polishing device for automotive fasteners, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for polishing the surface of automotive fasteners, comprising a carrier plate, wherein a bracket is fixedly mounted on the upper surface of the carrier plate, and a four-legged frame is placed inside the bracket;
[0006] A slot is provided in the middle of the upper surface of the carrier plate, a fixing block is positioned in the slot, and a threaded groove is provided in the fixing block;
[0007] A push rod motor is fixedly installed on the upper surface of the bracket, and a rotating motor is fixedly installed at the bottom of the drive shaft of the push rod motor. The drive shaft of the rotating motor is fixedly connected to the quadruped frame.
[0008] The four legs of the quadruped are each equipped with a shank, and a drive motor is fixedly installed on the top of the shank. A grinding roller is fixedly installed on the bottom of the drive shaft of the drive motor.
[0009] Both sides of the crank plate are fixedly installed with inner rods, which movably pass through the four-legged frame. A spring is sleeved on the outside of the inner rod, and an iron block is fixedly installed at the end of the inner rod. It can be used in conjunction with components such as the four-legged frame, spring, and grinding roller. During the use of the surface polishing device, the grinding roller can be moved outward, and the synchronous push rod motor drives the grinding roller to move downward. At this time, the grinding roller is pressed against the surface of the fastener by the spring tension. Then, the drive motor is started to drive the grinding roller to rotate for polishing. At the same time, the rotation motor drives the grinding roller to rotate around the circumference of the fastener surface. This multi-position polishing method effectively improves the polishing efficiency of the fastener.
[0010] As an optional solution to the technical solution of this application, each of the four legs of the quadruped is fixedly equipped with a cover near the outer side of the iron block. An electromagnet is fixedly installed inside the cover. The side wall of the cover has a wire hole. The electromagnet and the cover can be used in conjunction to limit the electromagnet and position it on one side of the iron block. Whenever the grinding roller is temporarily moved outward, the electromagnet can be turned on, the electromagnet generates magnetism, and the iron block moves towards it, thereby realizing the synchronous outward movement of the four sets of grinding rollers. This structure facilitates the movement of the grinding rollers and has a relatively ideal effect.
[0011] As an optional solution to the technical solution of this application, a screw is movably inserted through the lower side of the carrier plate near the fixing block. The top of the screw is screwed to a pre-set threaded groove on the fixing block through an external thread. The fixing block can be detachably assembled by screwing the screw to the threaded groove. Damaged fixing blocks can be replaced later, or threaded blocks with different thread inner diameters can be replaced, which is highly practical.
[0012] As an optional solution to the technical solution of this application, support rods are fixedly installed at the four corners of the bottom of the carrier plate, and positioning blocks are fixedly installed at the bottom of the support rods. Positioning bolts can be moved through the positioning blocks of the support rods to provide a detachable and stable limit for the device.
[0013] As an optional solution to the technical solution of this application, an indicator sign is fixedly installed on one side of the outer wall of the bracket, and the indicator sign is fixed by welding. The indicator sign can inform the corresponding operation procedures, which is convenient for personnel in the initial stage of use.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model discloses a surface polishing device for automotive fasteners. The device comprises a four-legged frame, springs, and a grinding roller. During use, the grinding roller is moved outwards, and a synchronous push rod motor drives the grinding roller downwards. The grinding roller then contacts the fastener surface under spring tension. Subsequently, a drive motor is activated to rotate the grinding roller for polishing. Simultaneously, a rotating motor drives the grinding roller to rotate circumferentially along the fastener surface. This multi-position polishing method effectively improves the polishing efficiency of fasteners.
[0016] 2. This utility model discloses a surface polishing device for automotive fasteners. By setting up an electromagnet and a cover, the cover can limit the electromagnet and position it on one side of an iron block. Whenever the grinding roller is temporarily moved outward, the electromagnet can be activated, generating magnetism and causing the iron block to move towards it, thereby realizing the synchronous outward movement of four sets of grinding rollers. This structure facilitates the adjustment of the grinding rollers and has a relatively ideal effect. Attached Figure Description
[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0018] Figure 1 This is a schematic diagram of the overall main structure of a surface polishing device for automotive fasteners according to the present invention.
[0019] Figure 2 This is a schematic diagram of the connection between the four-legged frame and the grinding roller in a surface polishing device for automotive fasteners according to this utility model.
[0020] Figure 3 This is a magnified cross-sectional view of point A of a surface polishing device for automotive fasteners according to the present invention.
[0021] In the diagram: 1. Carrier plate; 11. Support rod; 12. Threaded groove; 13. Screw; 14. Slot; 2. Fixing block; 3. Bracket; 31. Indicator sign; 32. Push rod motor; 33. Rotating motor; 4. Quadruped; 41. Grinding roller; 42. Iron block; 43. Inner rod; 44. Spring; 45. Crank plate; 46. Drive motor; 5. Cover; 51. Wire hole; 52. Electromagnet. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] Please see Figure 1-3This utility model provides a technical solution: a device for polishing the surface of automotive fasteners, including a carrier plate 1. Support rods 11 are fixedly installed at the four corners of the bottom of the carrier plate 1, and positioning blocks are fixedly installed at the bottom ends of the support rods 11. Positioning bolts can be moved through the positioning blocks of the support rods 11, providing a detachable and stable limiting mechanism for the device. A bracket 3 is fixedly installed on the upper surface of the carrier plate 1. An indicator sign 31 is fixedly installed on one outer wall of the bracket 3, and the indicator sign 31 is fixed by welding. The indicator sign 31 can indicate the corresponding operating procedures, facilitating use by personnel in the initial stages. A quadruped 4 is placed inside the bracket 3. The upper surface of the carrier plate 1... The bracket 1 has a slot 14, in which a fixing block 2 is positioned. The fixing block 2 has a threaded groove. A screw 13 is movably inserted through the lower side of the carrier plate 1 near the fixing block 2. The top of the screw 13 is screwed into the threaded groove 12 on the fixing block 2 through an external thread. The fixing block 2 can be detached and assembled by screwing the screw 13 into the threaded groove 12. Damaged fixing blocks 2 can be replaced later, or threaded blocks with different thread inner diameters can be replaced, which is highly practical. A push rod motor 32 is fixedly installed on the upper surface of the bracket 3. A rotating motor 33 is fixedly installed at the bottom of the drive shaft of the push rod motor 32. The drive shaft of the rotating motor 33 is fixedly connected to the quadruped 4.
[0024] The four legs of the quadruped 4 are each equipped with a shank 45. A drive motor 46 is fixedly installed on the top of the shank 45. A grinding roller 41 is fixedly installed on the bottom of the drive shaft of the drive motor 46. An inner rod 43 is fixedly installed on both sides of the shank 45. The inner rod 43 moves through the quadruped 4. A spring 44 is sleeved on the outside of the inner rod 43. An iron block 42 is fixedly installed at the end of the inner rod 43.
[0025] In this technical solution, components such as a quadruped 4, a spring 44, and a grinding roller 41 can be used together. During the use of the surface polishing device, the grinding roller 41 can be moved outward, and the synchronous push rod motor 32 can drive the grinding roller 41 to move downward. At this time, the grinding roller 41 is pressed against the surface of the fastener by the tension of the spring 44. Then, the drive motor 46 is started to drive the grinding roller 41 to rotate for polishing. At the same time, the rotation motor 33 drives the grinding roller 41 to rotate around the circumference of the fastener surface. This multi-position polishing method effectively improves the polishing efficiency of the fastener.
[0026] In some technical solutions, the four legs of the quadruped 4 are fixedly installed with covers 5 near the outer side of the iron block 42, and an electromagnet 52 is fixedly installed inside the covers 5. The side wall of the covers 5 has wire holes 51.
[0027] In this technical solution, components such as electromagnet 52 and cover 5 can be used together. The cover 5 can limit the electromagnet 52 and position it on one side of the iron block 42. Whenever the grinding roller 41 is temporarily moved outward, the electromagnet 52 can be turned on. The electromagnet 52 generates magnetism and moves the iron block 42 toward it, thereby realizing the synchronous outward movement of the four sets of grinding rollers 41. This structure facilitates the movement of the grinding roller 41 and has a relatively ideal effect.
[0028] Working principle: It should be noted that this utility model is a surface polishing device for automotive fasteners. All components are general standard parts or parts known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional test methods.
[0029] When using a polishing device for automotive fastener surfaces, the polishing device is placed in the processing area of the automotive fastener surface, and then the fastener is screwed into the fixing block 2, and then the side end face of the fastener is polished by the grinding roller 41.
[0030] By configuring a quadruped 4, springs 44, and grinding rollers 41, during the use of the surface polishing device, the grinding rollers 41 can be moved outwards, and the synchronous push rod motor 32 drives the grinding rollers 41 to move downwards. At this time, the grinding rollers 41 are pressed against the surface of the fastener by the tension of the springs 44. Then, the drive motor 46 is started to drive the grinding rollers 41 to rotate for polishing. At the same time, the rotation motor 33 drives the grinding rollers 41 to rotate circumferentially along the surface of the fastener. This multi-position polishing method effectively improves the polishing efficiency of the fasteners. By configuring an electromagnet 52 and a cover 5, the electromagnet 52 can be limited by the cover 5 and placed on one side of the iron block 42. Whenever the grinding rollers 41 are temporarily moved outwards, the electromagnet 52 can be turned on. The electromagnet 52 generates magnetism and moves the iron block 42 toward it, thereby realizing the synchronous outward movement of the four sets of grinding rollers 41. This structure facilitates the adjustment of the grinding rollers 41 and has a relatively ideal effect.
Claims
1. A device for polishing the surface of automotive fasteners, characterized in that: Includes a carrier plate (1), on the upper surface of the carrier plate (1) a bracket (3) is fixedly installed, and a quadruped frame (4) is placed inside the bracket (3); A slot (14) is provided in the middle of the upper surface of the carrier plate (1), and a fixing block (2) is positioned in the slot (14), and a threaded groove is provided in the fixing block (2); A push rod motor (32) is fixedly installed on the upper surface of the bracket (3), and a rotating motor (33) is fixedly installed at the bottom of the drive shaft of the push rod motor (32). The drive shaft of the rotating motor (33) is fixedly connected to the quadruped (4). The four legs of the quadruped (4) are each equipped with a shank (45) on the inside. A drive motor (46) is fixedly installed on the top of the shank (45), and a grinding roller (41) is fixedly installed on the bottom of the drive shaft of the drive motor (46). Both sides of the crank plate (45) are fixedly installed with inner rods (43), which move through the four-legged frame (4). A spring (44) is sleeved on the outside of the inner rod (43), and an iron block (42) is fixedly installed at the end of the inner rod (43).
2. The device for polishing the surface of automotive fasteners according to claim 1, characterized in that: The four legs of the quadruped (4) are all fixedly installed with covers (5) near the outside of the iron block (42). An electromagnet (52) is fixedly installed inside the cover (5). A wire hole (51) is opened on the side wall of the cover (5).
3. The device for polishing the surface of automotive fasteners according to claim 1, characterized in that: A screw (13) is movably inserted through the lower side of the carrier plate (1) near the fixing block (2), and the top end of the screw (13) is screwed into the threaded groove (12) on the fixing block (2) through an external thread.
4. The device for polishing the surface of automotive fasteners according to claim 1, characterized in that: The carrier plate (1) is fixedly installed with support rods (11) at the four corners at the bottom, and a positioning block is fixedly installed at the bottom of the support rods (11).
5. The device for polishing the surface of automotive fasteners according to claim 1, characterized in that: An indicator sign (31) is fixedly installed on one side of the outer wall of the bracket (3), and the indicator sign (31) is fixed by welding.