A steel nail rotary rolling thread forming device

CN224824374UActive Publication Date: 2026-10-09HEBEI HUACHANG METAL PRODUCTS CO LTD
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Patent Information

Application Number
CN202522416198.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-14
Publication Date
2026-10-09
Estimated Expiration
2035-11-14

AI Technical Summary

Technical Problem

[0004]然而,该装置在应用于螺纹钢钉的滚压加工时存在明显不足

Benefits of technology

[0013]与现有技术相比本实用新型的有益效果为:在对钢钉滚压螺纹时,当发现钢钉表面存在较大的凸起时,可以将钢钉表面的凸起车削下去,避免了凸起部位对滚压螺纹造成的影响,使用方便,可靠性和实用性高。

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Abstract

The utility model relates to technical field of machining especially is a kind of steel nail rotary formula roll thread forming device, when it is when to steel nail roll thread, when finding that there is greater protrusion on steel nail surface, protrusion on steel nail surface can be turned down, the influence caused by protrusion part to roll thread is avoided, it is easy to use, and reliability and practicality are high;Including bottom plate;Still including rolling mechanism, clamping mechanism, moving mechanism and turning mechanism, clamping mechanism is installed on moving mechanism, moving mechanism is used to move left and right to clamping mechanism, clamping mechanism has the function of clamping fixed, rolling mechanism is located at the right side of clamping mechanism, rolling mechanism has the function of roll thread, turning mechanism is installed on bottom plate, and turning mechanism has the function of turning.
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Description

Technical Field

[0001] This utility model relates to the technical field of machining, and in particular to a rotary rolling thread forming device for steel nails. Background Technology

[0002] During the manufacturing process, threads are rolled onto the surface of the steel nail by rolling to create threads, thereby increasing the interlocking force between the steel nail and the base material and enhancing its stability during use.

[0003] In the prior art, the utility model patent with patent application number 201620440028.1 discloses a long bolt thread rolling device, which mainly consists of a rolling die and a central tube. When in use, the smooth rod that needs to be threaded is pressed and fixed on the central tube, and the thread is rolled on the surface of the smooth rod by the rolling die.

[0004] However, this device has significant shortcomings when applied to the rolling of threaded steel nails. Since steel nails are typically mass-produced using cold heading, during actual manufacturing, defects such as burrs or localized protrusions may appear on the surface of some nails due to die wear, poor lubrication, or abnormal operation. If such nails with surface defects are directly fed into the rolling die for rolling, the protruding parts will cause severe impact and uneven wear on the rolling wheel under high pressure. This not only seriously affects the quality of thread forming but also easily leads to tooth breakage and shortened lifespan of the rolling wheel, and may even cause equipment failure. Therefore, there is an urgent need for a thread rolling device that can effectively treat such surface defects before rolling and protect the rolling die. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a rotary thread rolling forming device for steel nails that can machine away large protrusions on the surface of the steel nail when rolling threads, thus avoiding the influence of the protrusions on the thread rolling. This device is convenient to use, reliable, and highly practical.

[0006] This utility model discloses a rotary thread rolling forming device for steel nails, comprising a base plate; and further comprising a rolling mechanism, a clamping mechanism, a moving mechanism, and a turning mechanism. The clamping mechanism is mounted on the moving mechanism and is used to move the clamping mechanism left and right, and has the function of clamping and fixing. The rolling mechanism is located to the right of the clamping mechanism and has the function of rolling threads. The turning mechanism is mounted on the base plate and has the function of turning. When rolling threads on the surface of a steel nail, the left end of the steel nail is first clamped and fixed by the clamping mechanism. When a large protrusion is found on the right side of the steel nail, the protrusion on the surface of the steel nail is turned by the turning mechanism to make the surface of the steel nail flat. Then, the moving mechanism moves the clamping mechanism to the rolling mechanism to roll the threads. When a large protrusion is found on the surface of the steel nail during the thread rolling process, the protrusion on the surface of the steel nail can be turned off, avoiding the influence of the protrusion on the thread rolling. It is convenient to use and has high reliability and practicality.

[0007] Preferably, the clamping mechanism includes a support plate, a servo motor, a rotating shaft, and a three-jaw chuck. The servo motor is fixedly installed on the left end of the support plate, the rotating shaft is rotatably installed on the support plate, the power output end of the servo motor is connected to the left end of the rotating shaft, and the three-jaw chuck is fixedly installed on the right end of the rotating shaft. When turning the thread on the right side of the steel nail, the left side of the steel nail is clamped and fixed by the three-jaw chuck. Then, the servo motor is turned on, so that the rotating shaft drives the three-jaw chuck to rotate, thereby making the steel nail rotate at a certain speed. At the same time, the moving mechanism causes the support plate to drive the rotating shaft and the three-jaw chuck to move to the right, so that the steel nail moves to the right until it contacts the rolling mechanism, and the rolling mechanism rolls the thread on the surface of the steel nail.

[0008] Preferably, the moving mechanism includes a linear module, which is fixedly mounted on the base plate. A sliding plate is provided on the linear module, which is used to move the sliding plate left and right. A support plate is fixedly mounted on the upper end of the sliding plate. When the steel nail is moved in the left and right direction, the linear module is opened, which drives the sliding plate to move in the left and right direction. This, in turn, causes the support plate to drive the rotating shaft, the three-jaw chuck, and the steel nail to move in the left and right direction, thus facilitating the left and right movement of the steel nail.

[0009] Preferably, the rolling mechanism includes a mounting frame, multiple thread rolling heads, and a rotating mechanism. The multiple thread rolling heads are all mounted on the mounting frame, and the three-jaw chuck is coaxial with the uppermost thread rolling head. The multiple thread rolling heads have different specifications. The mounting frame is mounted on the rotating mechanism, which is used to rotate the mounting frame. When rolling threads on a steel nail, the rotating steel nail moves to the right, allowing the steel nail to enter the uppermost thread rolling head. The thread rolling head then presses threads onto the surface of the steel nail, facilitating the rolling of threads on the surface of the steel nail.

[0010] Preferably, the rotating mechanism includes a servo indexing turntable and a support shaft. The servo indexing turntable is mounted on the base plate, and the support shaft is mounted on the rotating end of the left side of the servo indexing turntable. The mounting bracket is fixedly mounted on the left end of the support shaft, and multiple thread rolling heads are evenly distributed around the axis of the support shaft. When rolling threads on steel nails, the servo indexing turntable is opened according to the specifications of the threads to be rolled on the steel nails, so that the support shaft drives the mounting bracket and multiple thread rolling heads to rotate. The thread rolling head that meets the specifications rotates to the coaxiality with the three-jaw chuck, and then the rotating steel nail moves to the right to the corresponding thread rolling head for thread rolling. Different thread rolling heads can be replaced as needed for thread rolling, which is convenient to use and has low limitations.

[0011] Preferably, the turning mechanism includes a moving plate, a cutting tool, and a pushing mechanism. The cutting tool is mounted on the moving plate, and the moving plate is mounted on the pushing mechanism. The pushing mechanism is used to move the moving plate back and forth. The cutting tool is located on the rear side of the three-jaw chuck. When a large protrusion is found on the surface of the steel nail, the protruding part on the steel nail is moved to the front side of the cutting tool in the left-right direction. Then, the servo motor is turned on, causing the shaft to drive the steel nail to rotate at high speed. Then, the moving plate is driven by the pushing mechanism to move the cutting tool forward, so that the cutting tool moves forward to contact the protrusion on the surface of the steel nail. The protrusion on the surface of the steel nail is turned off by the cutting tool, which facilitates the treatment of the protrusion on the surface of the steel nail.

[0012] Preferably, the pushing mechanism includes a support plate, a servo cylinder, a push rod, and a sliding rod. The support plate is fixedly mounted on the base plate, the servo cylinder is fixedly mounted on the rear end of the support plate, and the push rod and sliding rod are slidably mounted on the support plate. The power output end of the servo cylinder is connected to the rear end of the push rod, and the moving plate is fixedly mounted on the front end of the push rod and the sliding rod. When the moving plate moves back and forth, the servo cylinder is activated, which drives the push rod to move in the back and forth direction, thereby driving the moving plate and the cutting tool to move in the back and forth direction. This facilitates the back and forth movement of the cutting tool.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: when rolling threads on steel nails, if a large protrusion is found on the surface of the steel nail, the protrusion on the surface of the steel nail can be machined off, avoiding the influence of the protrusion on the rolling thread. It is convenient to use and has high reliability and practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is a schematic diagram of the second isometric structure of this utility model; Figure 3 This is a schematic diagram of the rolling mechanism; Figure 4 This is a structural schematic diagram of the linear module, sliding plate, and support plate, etc. Figure 5 This is a schematic diagram of the turning mechanism.

[0015] The following are labels in the attached diagram: 1. Base plate; 2. Support plate; 3. Servo motor; 4. Rotary shaft; 5. Three-jaw chuck; 6. Linear module; 7. Sliding plate; 8. Mounting bracket; 9. Thread rolling head; 10. Servo indexing turntable; 11. Support shaft; 12. Moving plate; 13. Lathe tool; 14. Support plate; 15. Servo electric cylinder; 16. Push rod; 17. Sliding rod; 18. Steel nail. Detailed Implementation

[0016] To facilitate understanding of this invention, a more complete description will be provided below with reference to the accompanying drawings. This invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this invention more thorough and complete. Example 1

[0017] like Figures 1 to 5 The present invention relates to a rotary thread rolling forming device for steel nails, comprising a base plate 1, a rolling mechanism, a clamping mechanism, a moving mechanism, and a turning mechanism. The clamping mechanism is mounted on the moving mechanism and is used to move the clamping mechanism left and right, thus providing a clamping and fixing function. The rolling mechanism is located to the right of the clamping mechanism and provides a thread rolling function. The turning mechanism is mounted on the base plate 1 and provides a turning function. When rolling threads on the surface of the steel nail 18, the left end of the steel nail 18 is first passed through the clamping mechanism... The mechanism clamps and fixes the steel nail 18. When a large protrusion is found on the right side of the surface of the steel nail 18, the protrusion on the surface of the steel nail 18 is machined by the turning mechanism to make the surface of the steel nail 18 flat. Then, the moving mechanism moves the clamping mechanism to move the steel nail 18 into the rolling mechanism for thread rolling. When rolling the threads of the steel nail 18, if a large protrusion is found on the surface of the steel nail 18, the protrusion on the surface of the steel nail 18 can be machined off, avoiding the influence of the protrusion on the thread rolling. It is convenient to use and has high reliability and practicality.

[0018] like Figure 1 and Figure 4The clamping mechanism includes a support plate 2, a servo motor 3, a rotating shaft 4, and a three-jaw chuck 5. The servo motor 3 is fixedly installed on the left end of the support plate 2, and the rotating shaft 4 is rotatably installed on the support plate 2. The power output end of the servo motor 3 is connected to the left end of the rotating shaft 4, and the three-jaw chuck 5 is fixedly installed on the right end of the rotating shaft 4. When turning the thread on the right side of the steel nail 18, the left side of the steel nail 18 is clamped and fixed by the three-jaw chuck 5. Then, the servo motor 3 is turned on, so that the rotating shaft 4 drives the three-jaw chuck 5 to rotate, thereby making the steel nail 18 rotate at a certain speed. At the same time, the moving mechanism causes the support plate 2 to drive the rotating shaft 4 and the three-jaw chuck 5 to move to the right, so that the steel nail 18 moves to the right until it contacts the rolling mechanism. The rolling mechanism rolls the thread on the surface of the steel nail 18.

[0019] like Figure 1 and Figure 4 The moving mechanism includes a linear module 6, which is fixedly mounted on the base plate 1. A sliding plate 7 is provided on the linear module 6. The linear module 6 is used to move the sliding plate 7 left and right. A support plate 2 is fixedly mounted on the upper end of the sliding plate 7. When the steel nail 18 moves in the left and right direction, the linear module 6 is opened. The linear module 6 drives the sliding plate 7 to move in the left and right direction, which in turn causes the support plate 2 to drive the rotating shaft 4, the three-jaw chuck 5 and the steel nail 18 to move in the left and right direction, thus facilitating the left and right movement of the steel nail 18.

[0020] like Figure 1 and Figure 3 The rolling mechanism includes a mounting frame 8, multiple thread rolling heads 9, and a rotating mechanism. The multiple thread rolling heads 9 are all mounted on the mounting frame 8. The three-jaw chuck 5 is coaxial with the uppermost thread rolling head 9. The multiple thread rolling heads 9 have different specifications. The mounting frame 8 is mounted on the rotating mechanism, which is used to rotate the mounting frame 8. When rolling threads on the steel nail 18, the rotating steel nail 18 is moved to the right, so that the steel nail 18 enters the uppermost thread rolling head 9. The thread rolling head 9 presses the threads on the surface of the steel nail 18, which facilitates the rolling of threads on the surface of the steel nail 18.

[0021] like Figure 3 The rotating mechanism includes a servo indexing turntable 10 and a support shaft 11. The servo indexing turntable 10 is mounted on the base plate 1, and the support shaft 11 is mounted on the rotating end of the left side of the servo indexing turntable 10. The mounting bracket 8 is fixedly mounted on the left end of the support shaft 11. Multiple thread rolling heads 9 are evenly distributed around the axis of the support shaft 11. When rolling threads on the steel nail 18, the servo indexing turntable 10 is opened according to the specifications of the threads to be rolled on the steel nail 18, so that the support shaft 11 drives the mounting bracket 8 and multiple thread rolling heads 9 to rotate, so that the thread rolling head 9 that meets the specifications rotates to be coaxial with the three-jaw chuck 5. Then, the rotating steel nail 18 is moved to the right to the corresponding thread rolling head 9 to roll the threads. Different thread rolling heads 9 can be replaced as needed to roll the threads. It is convenient to use and has low limitations.

[0022] like Figure 1 and Figure 5 The turning mechanism includes a moving plate 12, a cutting tool 13, and a pushing mechanism. The cutting tool 13 is mounted on the moving plate 12, and the moving plate 12 is mounted on the pushing mechanism. The pushing mechanism is used to move the moving plate 12 back and forth. The cutting tool 13 is located behind the three-jaw chuck 5. When a large protrusion is found on the surface of the steel nail 18, the protruding part on the steel nail 18 is moved to the front of the cutting tool 13 in the left and right direction. Then, the servo motor 3 is turned on, and the rotating shaft 4 drives the steel nail 18 to rotate at high speed. Then, the moving plate 12 is driven by the pushing mechanism to move the cutting tool 13 forward, so that the cutting tool 13 moves forward to contact the protrusion on the surface of the steel nail 18. The cutting tool 13 cuts off the protrusion on the surface of the steel nail 18, which facilitates the treatment of the protrusion on the surface of the steel nail 18.

[0023] like Figure 5 The pushing mechanism includes a support plate 14, a servo cylinder 15, a push rod 16, and a sliding rod 17. The support plate 14 is fixedly mounted on the base plate 1. The servo cylinder 15 is fixedly mounted on the rear end of the support plate 14. The push rod 16 and the sliding rod 17 are both slidably mounted on the support plate 14. The power output end of the servo cylinder 15 is connected to the rear end of the push rod 16. The moving plate 12 is fixedly mounted on the front end of the push rod 16 and the sliding rod 17. When the moving plate 12 moves back and forth, the servo cylinder 15 is activated. The servo cylinder 15 drives the push rod 16 to move in the back and forth direction, thereby driving the moving plate 12 and the cutting tool 13 to move in the back and forth direction. This facilitates the back and forth movement of the cutting tool 13. Example 2

[0024] Based on Example 1, a lighting lamp is installed on the upper part of the base plate 1 to make the area above the base plate 1 brighter and facilitate the monitoring of the processing.

[0025] It should be noted that the electrical equipment in this case, such as the servo motor 3, the three-jaw chuck 5, the linear module 6, the servo indexing turntable 10, and the servo electric cylinder 15, are all connected to an external controller, which coordinates and controls the operation of each electrical device.

[0026] The servo motor 3, three-jaw chuck 5, linear module 6, thread rolling head 9, servo indexing turntable 10, cutting tool 13, and servo electric cylinder 15 of the steel nail rotary rolling thread forming device of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rotary thread rolling forming device for steel nails, comprising a base plate (1); characterized in that, It also includes a rolling mechanism, a clamping mechanism, a moving mechanism and a turning mechanism. The clamping mechanism is installed on the moving mechanism and is used to move the clamping mechanism left and right. The clamping mechanism has the function of clamping and fixing. The rolling mechanism is located on the right side of the clamping mechanism and has the function of rolling threads. The turning mechanism is installed on the base plate (1) and has the function of turning.

2. The rotary rolling thread forming device for steel nails as described in claim 1, characterized in that, The clamping mechanism includes a support plate (2), a servo motor (3), a rotating shaft (4), and a three-jaw chuck (5). The servo motor (3) is fixedly installed on the left end of the support plate (2), the rotating shaft (4) is rotatably installed on the support plate (2), the power output end of the servo motor (3) is connected to the left end of the rotating shaft (4), and the three-jaw chuck (5) is fixedly installed on the right end of the rotating shaft (4).

3. The steel nail rotary rolling thread forming device as described in claim 2, characterized in that, The moving mechanism includes a linear module (6), which is fixedly installed on the base plate (1). A sliding plate (7) is provided on the linear module (6). The linear module (6) is used to move the sliding plate (7) left and right. A support plate (2) is fixedly installed on the upper end of the sliding plate (7).

4. The rotary thread rolling forming device for steel nails as described in claim 2, characterized in that, The rolling mechanism includes a mounting frame (8), multiple thread rolling heads (9) and a rotating mechanism. The multiple thread rolling heads (9) are all mounted on the mounting frame (8). The three-jaw chuck (5) is coaxial with the uppermost thread rolling head (9). The multiple thread rolling heads (9) have different specifications. The mounting frame (8) is mounted on the rotating mechanism, which is used to rotate the mounting frame (8).

5. The rotary rolling thread forming device for steel nails as described in claim 4, characterized in that, The rotating mechanism includes a servo indexing turntable (10) and a support shaft (11). The servo indexing turntable (10) is mounted on the base plate (1), and the support shaft (11) is mounted on the rotating end of the left side of the servo indexing turntable (10). The mounting bracket (8) is fixedly mounted on the left end of the support shaft (11), and multiple thread rolling heads (9) are evenly distributed around the axis of the support shaft (11).

6. The rotary thread rolling forming device for steel nails as described in claim 2, characterized in that, The turning mechanism includes a moving plate (12), a cutting tool (13) and a pushing mechanism. The cutting tool (13) is mounted on the moving plate (12), and the moving plate (12) is mounted on the pushing mechanism. The pushing mechanism is used to move the moving plate (12) back and forth. The cutting tool (13) is located on the rear side of the three-jaw chuck (5).

7. The rotary rolling thread forming device for steel nails as described in claim 6, characterized in that, The pushing mechanism includes a support plate (14), a servo cylinder (15), a push rod (16), and a sliding rod (17). The support plate (14) is fixedly installed on the base plate (1). The servo cylinder (15) is fixedly installed at the rear end of the support plate (14). The push rod (16) and the sliding rod (17) are both slidably installed on the support plate (14). The power output end of the servo cylinder (15) is connected to the rear end of the push rod (16). The moving plate (12) is fixedly installed at the front end of the push rod (16) and the sliding rod (17).

Citation Information

Patent Citations

  • Stay bolt screw thread rolling press device

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