Polishing device for production of finish-rolled nut fasteners
By using a hydraulic clamp and a double-sided grinding belt, the problem of needing to flip the clamp multiple times for precision rolled nuts and fasteners in existing technologies is solved, enabling simultaneous grinding on both sides and improving processing efficiency and grinding effect.
Patent Information
- Application Number
- CN202423139758.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing polishing equipment can only polish one side of the precision rolled nut fastener, requiring multiple flips of the fixture to complete polishing on both sides, resulting in low processing efficiency.
A hydraulic rod is used to drive the clamping plate to clamp the precision rolled nut fastener. The first and second polishing belts are used to polish both sides simultaneously. The motor drives the rotating roller to rotate the polishing belt. At the same time, a high-pressure water pump is used to wash the polishing belt to remove debris.
This technology enables simultaneous grinding of both sides of precision rolled nuts and fasteners, saving time, improving processing efficiency, and maintaining the grinding effect.
Smart Images

Figure CN223544935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precision rolled nut fastener processing technology, and in particular to a polishing device for the production of precision rolled nut fasteners. Background Technology
[0002] During the production process, nuts require fine surface treatment. Polishing equipment is usually used to grind away burrs on the nut surface, making the nut surface fine and smooth, thereby improving the precision of the nut surface.
[0003] Existing polishing devices typically only polish one side of precision rolled nuts and fasteners. After polishing one side, the clamp needs to be released, the fastener flipped over, and then the clamp needs to be tightened again to polish the other side. Although this process achieves polishing of both sides of the fastener, it requires a significant amount of time and effort, reducing the processing efficiency. To address these issues, this application proposes a polishing device for producing precision rolled nuts and fasteners. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a polishing device for the production of precision rolled nuts and fasteners. The device uses a hydraulic rod to drive clamping plates on both sides to clamp and fix the precision rolled nuts and fasteners. The first and second polishing belts can simultaneously polish both sides of the precision rolled nuts and fasteners, saving time and improving the processing efficiency of precision rolled nuts and fasteners.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A polishing device for producing precision rolled nuts and fasteners includes a frame. Two hydraulic rods are fixedly connected to the inner wall of the frame. Each hydraulic rod's output end is fixedly connected to a clamping plate. The two clamping plates together hold the precision rolled nut and fastener body. Two pairs of support columns are fixedly connected to the inner bottom of the frame. Each pair of support columns is rotatably connected to a first rotating roller. A first polishing belt is fitted onto the two first rotating rollers. The top of the first polishing belt abuts against the bottom of the precision rolled nut and fastener body. An electric telescopic rod is fixedly connected to the top of the frame. A C-shaped plate is fixedly connected to the bottom of the electric telescopic rod. Two second rotating rollers are rotatably connected to the C-shaped plate. A second polishing belt is fitted onto the outer wall of the two second rotating rollers. The bottom of the second polishing belt abuts against the top of the precision rolled nut and fastener body. A water tank is fixedly connected to the top of the frame. The water tank is connected to a first pumping mechanism, which is connected to a first hollow tube. The water tank is connected to a second pumping mechanism, which is connected to a second hollow tube.
[0007] Preferably, the clamping plate has a C-shaped groove at one end near the body of the precision rolled nut fastener. The C-shaped groove abuts against the outer wall of the body of the precision rolled nut fastener. The inner wall of the C-shaped groove has a protective layer made of rubber.
[0008] Preferably, a first motor is fixedly connected to the rear end of the support column on the left rear side, the output shaft of the first motor passes through the support column and is rotatably connected to it, the first motor is coaxially fixedly connected to the first rotating roller on the left side, a second motor is fixedly connected to the rear end of the C-shaped plate, the output shaft of the second motor passes through the C-shaped plate and is rotatably connected to it, and the end of the output shaft of the second motor is coaxially fixedly connected to the second rotating roller on the left side.
[0009] Preferably, the first pumping mechanism includes a first inlet pipe, a first high-pressure water pump, and a first outlet pipe. The first inlet pipe is fixedly connected to the side wall of the water tank, the first inlet pipe is fixedly connected to the first high-pressure water pump, the first high-pressure water pump is fixedly connected to the first outlet pipe, the first high-pressure water pump is disposed on the top of the frame and fixedly connected thereto, the first outlet pipe passes through the frame and is fixedly connected thereto, and the end of the first outlet pipe is fixedly connected to the first hollow pipe.
[0010] Preferably, the second pumping mechanism includes a second inlet pipe, a second high-pressure water pump, and a second outlet pipe. The second inlet pipe is fixedly connected to the side wall of the water tank, the second inlet pipe is fixedly connected to the second high-pressure water pump, the second high-pressure water pump is fixedly connected to the second outlet pipe, the second high-pressure water pump is disposed on the side wall of the frame and fixedly connected thereto, the second outlet pipe passes through the frame and is fixedly connected thereto, and the end of the second outlet pipe is fixedly connected to the second hollow pipe.
[0011] Preferably, the bottom of the first hollow tube is fixedly connected to a plurality of first spray heads, and the side wall of the second pumping mechanism is fixedly connected to a plurality of second spray heads, with the plurality of first spray heads and second spray heads distributed at equal intervals.
[0012] Compared with the prior art, the advantages of this utility model are as follows:
[0013] 1. The output end of the hydraulic rod drives the clamping plates on both sides to move relative to each other until the two clamping plates abut against the outer wall of the precision rolled nut fastener body to complete the clamping and fixing of the precision rolled nut fastener body, and complete the limiting of the precision rolled nut fastener body to ensure the stability of the precision rolled nut fastener body during subsequent polishing.
[0014] 2. The first motor drives the first rotating roller and the first polishing belt to rotate, which can polish the bottom of the clamped precision rolled nut fastener body. The second motor drives the second rotating roller and the second polishing belt to rotate, which can polish the top of the clamped precision rolled nut fastener body, thus achieving polishing of both the upper and lower surfaces of the precision rolled nut fastener body.
[0015] 3. The first and second high-pressure water pumps can spray water from the water tank through the spray head to rinse the first and second polishing belts, washing away the debris adhering to the polishing belts and ensuring the cleanliness of the surface of the polishing belts, resulting in better polishing effect in subsequent polishing.
[0016] In summary, the hydraulic rod drives the clamping plates on both sides to clamp and fix the precision rolled nut fastener. The first and second polishing belts can polish both sides of the precision rolled nut fastener simultaneously, saving time and improving the processing efficiency of the precision rolled nut fastener. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a polishing device for producing precision rolled nuts and fasteners proposed in this utility model;
[0018] Figure 2 This is a first cross-sectional view of a polishing device for producing precision rolled nuts and fasteners proposed in this utility model;
[0019] Figure 3 This is a second cross-sectional view of a polishing device for producing precision rolled nut fasteners proposed in this utility model.
[0020] In the figure: 1 frame, 2 hydraulic rod, 3 clamping plate, 4 precision rolled nut fastener body, 5 support column, 6 first rotating roller, 7 first polishing belt, 8 electric telescopic rod, 9 C-shaped plate, 10 second rotating roller, 11 second polishing belt, 12 water tank, 13 first pumping mechanism, 14 first hollow tube, 15 second pumping mechanism, 16 second hollow tube. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figures 1-3 A polishing device for producing precision rolled nuts and fasteners includes a frame 1. Two hydraulic rods 2 are fixedly connected to the inner wall of the frame 1. Each hydraulic rod 2 has a clamping plate 3 fixedly connected to its output end. The two clamping plates 3 together clamp the precision rolled nut and fastener body 4. One end of the clamping plate 3 near the precision rolled nut and fastener body 4 is provided with a C-shaped groove. The C-shaped groove abuts against the outer wall of the precision rolled nut and fastener body 4. The inner wall of the C-shaped groove is provided with a protective layer made of rubber. The precision rolled nut and fastener body 4 is a hexagonal nut. The clamping plates 3 can clamp and fix the precision rolled nut and fastener body 4, ensuring its stability during subsequent grinding and polishing, and achieving excellent grinding and polishing precision.
[0023] Two pairs of support columns 5 are fixedly connected to the inner bottom of the frame 1. Each pair of support columns 5 is rotatably connected to a first rotating roller 6. The two first rotating rollers 6 are fitted with a first polishing belt 7. The top of the first polishing belt 7 is set against the bottom of the precision rolled nut fastener body 4. The bottom of the precision rolled nut fastener body 4 can be polished by rotating the first polishing belt 7. The rear end of the support column 5 on the left rear side is fixedly connected to a first motor. The output shaft of the first motor passes through the support column 5 and is rotatably connected to it. The first motor is coaxially fixedly connected to the first rotating roller 6 on the left side. The first motor can drive the first polishing belt 7 to rotate, thereby polishing the precision rolled nut fastener body 4.
[0024] An electric telescopic rod 8 is fixedly connected to the top of the frame 1. A C-shaped plate 9 is fixedly connected to the bottom of the electric telescopic rod 8. Two second rotating rollers 10 are rotatably connected to the C-shaped plate 9. A second polishing belt 11 is fitted on the outer wall of the two second rotating rollers 10. The bottom of the second polishing belt 11 abuts against the top of the precision rolled nut fastener body 4. The top of the precision rolled nut fastener body 4 can be polished by rotating the second polishing belt 11. A second motor is fixedly connected to the rear end of the C-shaped plate 9. The output shaft of the second motor passes through the C-shaped plate 9 and is rotatably connected to it. The end of the output shaft of the second motor is coaxially fixedly connected to the second rotating roller 10 on the left. The second motor can drive the second polishing belt 11 to rotate, which can polish the top of the precision rolled nut fastener body 4.
[0025] A water tank 12 is fixedly connected to the top of the frame 1. The water tank 12 is connected to a first pumping mechanism 13. The first pumping mechanism 13 includes a first inlet pipe, a first high-pressure water pump, and a first outlet pipe. The first inlet pipe is fixedly connected to the side wall of the water tank 12. The first inlet pipe is fixedly connected to the first high-pressure water pump. The first high-pressure water pump is fixedly connected to the first outlet pipe. The first high-pressure water pump is located at the top of the frame 1 and is fixedly connected to it. The first outlet pipe passes through the frame 1 and is fixedly connected to it. The end of the first outlet pipe is fixedly connected to a first hollow pipe 14. The first pumping mechanism 13 is connected to the first hollow pipe 14. Water is sprayed out through the first hollow pipe 14 to rinse the outer wall of the second polishing belt 11.
[0026] The water tank 12 is connected to a second pumping mechanism 15, which includes a second inlet pipe, a second high-pressure water pump, and a second outlet pipe. The second inlet pipe is fixedly connected to the side wall of the water tank 12, the second inlet pipe is fixedly connected to the second high-pressure water pump, the second high-pressure water pump is fixedly connected to the second outlet pipe, the second high-pressure water pump is installed on the side wall of the frame 1 and fixedly connected to it, the second outlet pipe passes through the frame 1 and is fixedly connected to it, and the end of the second outlet pipe is fixedly connected to the second hollow pipe 16. The second pumping mechanism 15 is connected to the second hollow pipe 16, and water is sprayed out through the second hollow pipe 16 to rinse the outer wall of the first polishing belt 7.
[0027] The bottom of the first hollow tube 14 is fixedly connected to multiple first spray heads, and the side wall of the second pumping mechanism 15 is fixedly connected to multiple second spray heads. The multiple first spray heads and second spray heads are distributed at equal intervals. Water sprayed from the spray heads can wash the outer wall of the grinding belt, wash away the debris, ensure the cleanliness of the grinding belt surface, and achieve good subsequent grinding effect.
[0028] In this invention, the operator places the precision-rolled nut fastener body 4 on top of the first polishing belt 7. At this time, two hydraulic rods 2 are activated, driving the clamping plates 3 on both sides to move relative to each other through the output ends of the hydraulic rods 2 until the two clamping plates 3 abut against the outer wall of the precision-rolled nut fastener body 4, thus clamping and fixing the precision-rolled nut fastener body 4 and limiting its position to ensure stability during subsequent polishing. The first and second motors are then activated. The first motor drives the first rotating roller 6 and the first polishing belt 7 to rotate, polishing the bottom of the clamped precision-rolled nut fastener body 4. The second motor drives the second rotating roller 10 and the second polishing belt 11 to rotate, polishing the top of the clamped precision-rolled nut fastener body 4, thereby achieving polishing of both the upper and lower surfaces of the precision-rolled nut fastener body 4. All surfaces are polished. During polishing, the first and second high-pressure water pumps are activated. The first high-pressure water pump injects water from the water tank 12 into the first hollow tube 14 through the first inlet pipe and the first outlet pipe. Finally, the water is sprayed out through the first spray head to rinse the second polishing belt 11, washing away the debris adhering to the second polishing belt 11 and ensuring the cleanliness of the surface of the second polishing belt 11, resulting in a better polishing effect for the second polishing belt 11. The second high-pressure water pump injects water from the water tank 12 into the second pumping mechanism 15 through the second inlet pipe and the second outlet pipe. Finally, the water is sprayed out through the second spray head to rinse the first polishing belt 7, washing away the debris adhering to the first polishing belt 7 and ensuring the cleanliness of the surface of the first polishing belt 7, resulting in a better polishing effect for the first polishing belt 7.
[0029] This invention uses a hydraulic rod to clamp and fix the precision-rolled nut fastener to both sides, and uses a first and second polishing belt to polish both sides of the fastener simultaneously. This solves the problem that existing polishing devices can only polish one side of the precision-rolled nut fastener. After polishing one side, the clamps need to be released, the fastener flipped over, and then the clamps need to be clamped and limited again to polish the other side. Although this method achieves polishing of both sides of the precision-rolled nut fastener, it requires a lot of time and effort to operate the clamps, reducing the processing efficiency of the precision-rolled nut fastener.
Claims
1. A polishing device for producing precision rolled nuts and fasteners, comprising a frame (1), characterized in that, Two hydraulic rods (2) are fixedly connected to the inner wall of the frame (1). Each hydraulic rod (2) has a clamping plate (3) fixedly connected to its output end. The two clamping plates (3) together hold the body of the precision rolled nut fastener (4). Two pairs of support columns (5) are fixedly connected to the inner bottom of the frame (1). Each pair of support columns (5) is rotatably connected to a first rotating roller (6). The two first rotating rollers (6) are fitted with a first polishing belt (7). The top of the first polishing belt (7) abuts against the bottom of the body of the precision rolled nut fastener (4). An electric telescopic rod (8) is fixedly connected to the top of the frame (1). (8) is fixedly connected to a C-shaped plate (9), and two second rotating rollers (10) are rotatably connected on the C-shaped plate (9). The outer walls of the two second rotating rollers (10) are jointly fitted with a second polishing belt (11). The bottom of the second polishing belt (11) abuts against the top of the precision rolled nut fastener body (4). The top of the frame (1) is fixedly connected to a water tank (12), and the water tank (12) is connected to a first pumping mechanism (13). The first pumping mechanism (13) is connected to a first hollow tube (14). The water tank (12) is connected to a second pumping mechanism (15), and the second pumping mechanism (15) is connected to a second hollow tube (16).
2. The polishing device for producing precision rolled nuts and fasteners according to claim 1, characterized in that, The clamp (3) has a C-shaped groove at one end near the body (4) of the precision rolled nut fastener. The C-shaped groove abuts against the outer wall of the body (4) of the precision rolled nut fastener. The inner wall of the C-shaped groove is provided with a protective layer, and the material of the protective layer is rubber.
3. The polishing device for producing precision rolled nuts and fasteners according to claim 1, characterized in that, The rear end of the support column (5) on the left rear side is fixedly connected to a first motor. The output shaft of the first motor passes through the support column (5) and is rotatably connected to it. The first motor is coaxially fixedly connected to the first rotating roller (6) on the left side. The rear end of the C-shaped plate (9) is fixedly connected to a second motor. The output shaft of the second motor passes through the C-shaped plate (9) and is rotatably connected to it. The end of the output shaft of the second motor is coaxially fixedly connected to the second rotating roller (10) on the left side.
4. The polishing device for producing precision rolled nuts and fasteners according to claim 1, characterized in that, The first pumping mechanism (13) includes a first inlet pipe, a first high-pressure water pump and a first outlet pipe. The first inlet pipe is fixedly connected to the side wall of the water tank (12). The first inlet pipe is fixedly connected to the first high-pressure water pump. The first high-pressure water pump is fixedly connected to the first outlet pipe. The first high-pressure water pump is set on the top of the frame (1) and fixedly connected to it. The first outlet pipe passes through the frame (1) and is fixedly connected to it. The end of the first outlet pipe is fixedly connected to the first hollow pipe (14).
5. A polishing device for producing precision rolled nuts and fasteners according to claim 1, characterized in that, The second pumping mechanism (15) includes a second inlet pipe, a second high-pressure water pump and a second outlet pipe. The second inlet pipe is fixedly connected to the side wall of the water tank (12). The second inlet pipe is fixedly connected to the second high-pressure water pump. The second high-pressure water pump is fixedly connected to the second outlet pipe. The second high-pressure water pump is set on the side wall of the frame (1) and fixedly connected to it. The second outlet pipe passes through the frame (1) and is fixedly connected to it. The end of the second outlet pipe is fixedly connected to the second hollow pipe (16).
6. A polishing apparatus for producing precision rolled nuts and fasteners according to claim 5, characterized in that, The bottom of the first hollow tube (14) is fixedly connected to a plurality of first spray heads, and the side wall of the second pumping mechanism (15) is fixedly connected to a plurality of second spray heads. The plurality of first spray heads and second spray heads are distributed at equal intervals.