Polishing device for automobile bolt machining

Abstract

The utility model relates to the field of bolt machining, and discloses a polishing device for automobile bolt machining, which comprises a workbench, a fixing plate is arranged at the top of the workbench, an electric push rod is fixedly connected to the side wall of the fixing plate, a positioning plate is fixedly connected to the output end of the electric push rod, and an air bag is fixedly connected to the side wall of the positioning plate. The side wall of the air bag is fixedly connected with a first hook-and-loop fastener, the side wall of the first hook-and-loop fastener is provided with a second hook-and-loop fastener, the side wall of the second hook-and-loop fastener is fixedly connected with abrasive paper, the side wall of the fixing plate is fixedly connected with a supporting plate, and the top of the supporting plate is fixedly connected with an air pump. According to the polishing device, the electric push rod, the air pump, the positioning plate and other structures are arranged, the bolt rotates to switch the polishing face in the polishing process, the polishing device can be suitable for polishing bolts with threads of different depths, and the situation that the fastening performance of the bolt in subsequent use is reduced due to the fact that the thread face is difficult to polish is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bolt processing, and in particular to a grinding device for processing automotive bolts. Background Technology

[0002] A bolt is a fastener consisting of a head and a threaded shaft, typically used in conjunction with a nut to secure two parts with through holes. Bolts are widely used in the automotive industry, primarily for connecting and fastening parts such as engines, chassis, and body panels. Over long-term use, bolts are susceptible to corrosion, damage, and deformation due to significant forces and friction. Their surfaces may also accumulate oil, dust, and other contaminants, affecting their performance and appearance. To extend their lifespan and improve their appearance, bolts require grinding or polishing.

[0003] A search revealed that Chinese Patent Publication No. CN218226098U discloses a grinding device for manufacturing and processing automotive bolts. The device uses a first motor to drive a lead screw to rotate, thereby changing the position of two clamping mechanisms. While one clamping mechanism is processing the bolts, the other clamping mechanism is handling unloading and loading, thus improving work efficiency.

[0004] In the above technical solution, the bolt is clamped by the cooperation of the motor and the lead screw to accept the grinding operation. However, the bolts are different in different application scenarios, which will result in different overall dimensions and different thread depths. The grinding disc cannot adapt to the thread surface with different depths to grind it, thereby reducing the tightness of the bolts in subsequent use and reducing the grinding effect. Therefore, a grinding device for automotive bolt processing is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a grinding device for automotive bolt processing, which aims to improve the problem that existing automotive bolt grinding devices cannot adapt to different thread depths of different bolts, resulting in reduced grinding effect and consequently reduced bolt tightness.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a grinding device for processing automotive bolts, comprising a worktable, a fixed plate on the top of the worktable, an electric push rod fixedly connected to the side wall of the fixed plate, a positioning plate fixedly connected to the output end of the electric push rod, an airbag fixedly connected to the side wall of the positioning plate, a Velcro strap I fixedly connected to the side wall of the airbag, a Velcro strap II provided on the side wall of the Velcro strap I, sandpaper fixedly connected to the side wall of the Velcro strap II, a support plate fixedly connected to the side wall of the fixed plate, an air pump fixedly connected to the top of the support plate, a fixed base on the top of the worktable, a motor I fixedly connected to the side wall of the fixed base, a rotating shaft fixedly connected to the output end of the motor I, a turntable fixedly connected to the end of the rotating shaft, and a fixing component provided on the surface of the turntable.

[0007] As a further description of the above technical solution:

[0008] The port of the air pump is fixedly connected to the inner wall of the airbag via a hose.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes a groove, a screw is rotatably connected to the inner wall of the groove, a dial ring is fixedly connected to the outer wall of the screw, a movable block is threadedly connected to the outer wall of the screw, and a clamping plate is fixedly connected to the outer wall of the movable block.

[0011] As a further description of the above technical solution:

[0012] The groove is formed on the outer wall of the turntable on the side away from the rotating shaft, and the inner wall of the groove is adapted to the outer wall of the moving block.

[0013] As a further description of the above technical solution:

[0014] A limiting seat is fixedly connected to the top of the workbench, and a second motor is fixedly connected to the side wall of the limiting seat. A bidirectional lead screw is fixedly connected to the output end of the second motor.

[0015] As a further description of the above technical solution:

[0016] The end of the bidirectional lead screw is rotatably connected to the inner wall of the limiting seat.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the limiting seat is rotatably connected to a telescopic rod, and the telescopic rod is connected to a reciprocating screw via a transmission belt. The outer wall of the reciprocating screw is threadedly connected to a support seat, and the upper surface of the worktable is provided with a moving groove.

[0019] As a further description of the above technical solution:

[0020] The top of the support base is fixedly connected to the bottom of the fixed plate, and the end of the reciprocating screw is rotatably connected to the inner wall of the moving groove.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting up an electric push rod, an air pump, a positioning plate, Velcro 1, Velcro 2, sandpaper, a fixing base, a motor 1, a turntable and a fixing component, the two ends of the bolt are fixed and then rotated to switch the grinding surface during the grinding process. It can adapt to grinding bolts with different thread depths, avoid the thread surface being difficult to grind and reducing the fastening performance of the bolt in subsequent use, and ensure the grinding effect of the bolt.

[0023] 2. In this utility model, by setting a limiting seat, a two-way lead screw, a telescopic rod, a moving groove, and a reciprocating lead screw machine support group, the sandpaper can move back and forth during the grinding operation to make full contact with the surface of the bolt, thereby improving the uniformity of grinding. Attached Figure Description

[0024] Figure 1 This is a right-side view of the main structure of a grinding device for processing automotive bolts proposed in this utility model;

[0025] Figure 2 This is a left-side view of the main structure of a grinding device for processing automotive bolts proposed in this utility model;

[0026] Figure 3 This utility model proposes a grinding device for processing automotive bolts. Figure 2 Enlarged view of region A in the middle;

[0027] Figure 4 This is a rear view schematic diagram of the main structure of a grinding device for processing automotive bolts proposed in this utility model;

[0028] Figure 5 This is a partial side view of a grinding device for processing automotive bolts proposed in this utility model.

[0029] Legend:

[0030] 1. Workbench; 2. Fixed plate; 3. Electric push rod; 4. Support plate; 5. Air pump; 6. Positioning plate; 7. Airbag; 8. Velcro 1; 9. Velcro 2; 10. Sandpaper; 11. Fixed base; 12. Motor 1; 13. Rotating shaft; 14. Turntable; 15. Dial ring; 16. Screw; 17. Moving block; 18. Clamping plate; 19. Groove; 20. Motor 2; 21. Limit seat; 22. Two-way lead screw; 23. Telescopic rod; 24. Moving groove; 25. Reciprocating lead screw; 26. Support base. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a grinding device for processing automotive bolts, including a workbench 1, a fixed plate 2 on the top of the workbench 1, an electric push rod 3 fixedly connected to the side wall of the fixed plate 2, a positioning plate 6 fixedly connected to the output end of the electric push rod 3, an airbag 7 fixedly connected to the side wall of the positioning plate 6, a Velcro 8 fixedly connected to the side wall of the airbag 7, a Velcro 9 fixedly connected to the side wall of the Velcro 8, and sandpaper 10 fixedly connected to the side wall of the Velcro 9. The Velcro 8 and Velcro 9 can be glued together on their adjacent sides to facilitate the replacement of the sandpaper 10. A support plate 4 is fixedly connected to the side wall of the fixed plate 2, an air pump 5 is fixedly connected to the top of the support plate 4, a fixed seat 11 is provided on the top of the workbench 1, a motor 12 is fixedly connected to the side wall of the fixed seat 11, a rotating shaft 13 is fixedly connected to the output end of the motor 12, a turntable 14 is fixedly connected to the end of the rotating shaft 13, and a fixing component is provided on the surface of the turntable 14.

[0033] Reference Figure 3 - Figure 5The port of the air pump 5 is fixedly connected to the inner wall of the airbag 7 via a flexible hose. The hose is made of a retractable material and can extend or retract when the positioning plate 6 moves. The fixing component includes a groove 19, which is formed on the outer wall of the turntable 14 away from the rotating shaft 13. The inner wall of the groove 19 is adapted to the outer wall of the moving block 17. A screw 16 is rotatably connected to the inner wall of the groove 19. A dial ring 15 is fixedly connected to the outer wall of the screw 16. The moving block 17 is threadedly connected to the outer wall of the screw 16. A clamping plate 18 is fixedly connected to the outer wall of the moving block 17. Several clamping plates 18 are provided, and the clamping plates 18 are arranged in groups of three. The turntable 14 is arranged in a circular array with the center point of the symmetry axis. The clamping plate 18 fixes the white surface of the bolts, forming a triangular fixing force to prevent the bolts from coming off during grinding. The top of the worktable 1 is fixedly connected to the limit seat 21. The side wall of the limit seat 21 is fixedly connected to the motor 20. The output end of the motor 20 is fixedly connected to the bidirectional lead screw 22. The outer wall of the bidirectional lead screw 22 is threadedly connected to the inner wall of the fixed seat 11. The fixed seat 11 is provided with two sets of bidirectional lead screws 22 symmetrically arranged with the center point of the bidirectional lead screw 22 as the symmetry axis. The end of the bidirectional lead screw 22 is rotatably connected to the inner wall of the limit seat 21. The limit seat 21 provides support force for the bidirectional lead screw 22.

[0034] Reference Figure 2 , Figure 4 The inner wall of the limiting seat 21 is rotatably connected to a telescopic rod 23. The fixed end of the telescopic rod 23 is fixedly connected to the output end of a set of motors 12 near the transmission belt. The set of motors 12 is a dual-axis motor. The telescopic rod 23 is connected to a reciprocating screw 25 via the transmission belt. The end of the reciprocating screw 25 near the transmission belt passes through the wall of the worktable 1. The end of the reciprocating screw 25 is rotatably connected to the inner wall of the moving groove 24. The outer wall of the reciprocating screw 25 is threadedly connected to a support seat 26. The upper surface of the worktable 1 is provided with a moving groove 24. The top of the support seat 26 is fixedly connected to the bottom of the fixed plate 2.

[0035] Working principle: Start motor 20, which drives the bidirectional lead screw 22 to rotate. The two sets of fixed seats 11 move closer or further apart, allowing the position of the two sets of turntables 14 to be adjusted according to the bolt length. Manually moving the dial ring 15 causes the screw 16 to rotate, causing the moving block 17 to move the clamping plates 18 closer or further apart, fixing both ends of the bolt. Then, the air pump 5 starts, drawing air into the airbag 7 through a hose. The electric push rod 3 moves the positioning plate 6 closer to the bolt until the sandpaper 10 is in contact with the bolt surface. The airbag 7 allows the sandpaper 10 to easily adapt to different thread depths of various bolts when in contact with the bolt, enabling the sandpaper 10 to adhere to the thread surface. At this time, the two sets of motors 12 start and drive the rotating shaft 13 to rotate slowly, which in turn drives the bolt to rotate slowly through the turntable 14 to receive grinding. At the same time, the telescopic rod 23 rotates and drives the reciprocating screw 25 to rotate, so that the sandpaper 10 can move back and forth through the displacement of the support 26 to fully grind the bolt. Finally, the separation and adhesion of the Velcro 8 and Velcro 9 make it easy to replace the sandpaper 10 and improve the grinding effect.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 grinding device for processing automotive bolts, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a fixed plate (2), and an electric push rod (3) is fixedly connected to the side wall of the fixed plate (2). The output end of the electric push rod (3) is fixedly connected to a positioning plate (6). The side wall of the positioning plate (6) is fixedly connected to an airbag (7). The side wall of the airbag (7) is fixedly connected to a Velcro first (8). The side wall of the Velcro first (8) is provided with a Velcro second (9). The side wall of the Velcro second (9) is fixedly connected to sandpaper (10). The side wall of the fixed plate (2) is fixedly connected to a support plate (4). The top of the support plate (4) is fixedly connected to an air pump (5). The top of the workbench (1) is provided with a fixed seat (11). The side wall of the fixed seat (11) is fixedly connected to a motor first (12). The output end of the motor first (12) is fixedly connected to a rotating shaft (13). The end of the rotating shaft (13) is fixedly connected to a turntable (14). The surface of the turntable (14) is provided with a fixing component.

2. The grinding device for processing automotive bolts according to claim 1, characterized in that: The port of the air pump (5) is fixedly connected to the inner wall of the airbag (7) via a hose.

3. The grinding device for processing automotive bolts according to claim 1, characterized in that: The fixing component includes a groove (19), the inner wall of the groove (19) is rotatably connected to a screw (16), the outer wall of the screw (16) is fixedly connected to a dial ring (15), the outer wall of the screw (16) is threadedly connected to a moving block (17), and the outer wall of the moving block (17) is fixedly connected to a clamping plate (18).

4. The grinding device for processing automotive bolts according to claim 3, characterized in that: The groove (19) is formed on the outer wall of the turntable (14) away from the rotating shaft (13), and the inner wall of the groove (19) is adapted to the outer wall of the moving block (17).

5. The grinding device for processing automotive bolts according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a limiting seat (21), and a second motor (20) is fixedly connected to the side wall of the limiting seat (21). A bidirectional lead screw (22) is fixedly connected to the output end of the second motor (20).

6. A grinding device for processing automotive bolts according to claim 5, characterized in that: The end of the bidirectional lead screw (22) is rotatably connected to the inner wall of the limiting seat (21).

7. A grinding device for processing automotive bolts according to claim 5, characterized in that: The inner wall of the limiting seat (21) is rotatably connected to a telescopic rod (23), the telescopic rod (23) is connected to a reciprocating screw (25) via a transmission belt, the outer wall of the reciprocating screw (25) is threadedly connected to a support seat (26), and the upper surface of the worktable (1) is provided with a moving groove (24).

8. A grinding device for processing automotive bolts according to claim 7, characterized in that: The top of the support base (26) is fixedly connected to the bottom of the fixed plate (2), and the end of the reciprocating screw (25) is rotatably connected to the inner wall of the moving groove (24).

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