Automatic tapping machine for press rivet stud
By using a gravity sensor and motor control system to automatically flip the collection box, the problem of manual tilting in the automatic tapping machine for press-fit nut columns is solved, achieving automatic collection and ensuring accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZHENGZILIANG TECHNOLOGY CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-06-02
AI Technical Summary
The existing automatic tapping machine for press-fit nuts requires manual emptying when the container is full, which causes the press-fit nuts to overflow, increasing the labor intensity and collection difficulty for personnel.
An automatic tapping machine for press-fit nut columns was designed. It uses a gravity sensor and a motor control system to automatically flip the collection box. Combined with worm gear transmission and a buffer device, it can automatically tilt the press-fit nut columns to avoid accumulation and overflow.
It enables automatic and timely collection of rivet nut columns, reducing the labor intensity of personnel, ensuring product accuracy, and reducing collision wear.
Smart Images

Figure CN224309745U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fastener manufacturing equipment technology, specifically to an automatic tapping machine for press-fit nut posts. Background Technology
[0002] Press-fit nut columns have a wide range of applications and are used in the connection and assembly of various mechanical equipment. During operation, simply place the press-fit nut column blank into the vibratory feeder for automatic feeding, positioning, tightening, tapping, and unloading.
[0003] According to Chinese Patent Publication No. CN214443605U, an automatic tapping machine for press-fit nut columns is disclosed. This machine utilizes a turntable conveyor system, transforming the traditional linear conveyor line into a circular arrangement, reducing the distance between devices and saving space. The devices are connected by screws, facilitating the production of different product models. Two technical solutions are available: replaceable processing and fixing components, and adjustable distance between the tapping mechanism and the turntable, offering flexibility. However, in this previous solution, the press-fit nut column container required manual emptying when full, which could lead to overflow onto the worktable due to delays in handling, increasing the difficulty of subsequent collection and thus increasing labor intensity. Therefore, we propose an automatic tapping machine for press-fit nut columns. Utility Model Content
[0004] The purpose of this invention is to provide an automatic tapping machine for press-fit nut columns, which solves the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic tapping machine for press-fit nut columns, comprising a support platform, a tapping device body fixedly installed on the top of the support platform near the rear side, a turntable mechanism arranged below the tapping device body, the turntable mechanism being installed on the top of the support platform, a vibratory feeder installed on one side of the top of the support platform, a linear feeder connected to the vibratory feeder, a controller fixedly installed on the top of the support platform, a support leg fixedly installed at the bottom of the support platform, and a flip-over opening opened on the other side of the support platform, the inner wall of the flip-over opening rotating through a bearing seat. A rotating shaft is connected to the support platform, and a rotating groove is provided on the support platform. The rotating shaft extends movably through the inner wall of the flip-out opening into the rotating groove, and the rotating shaft is rotatably connected to the support platform through a bearing. A fixing plate is fixedly sleeved on the outer wall of the rotating shaft. Gravity sensor one and gravity sensor two are fixedly installed at the top and bottom of the fixing plate, respectively. Collection box one and collection box two are fixedly installed at the top of gravity sensor one and the bottom of gravity sensor two, respectively. A fixing box is provided below the rotating groove and is fixedly installed at the bottom of the support platform. A motor is fixedly installed on the front of the fixing box, and the rotating shaft is connected to the motor for transmission.
[0006] Preferably, the first gravity sensor and the second gravity sensor are connected to the controller via signal connection, and the controller is electrically connected to the motor, the tapping equipment body, the turntable mechanism, the vibratory feeder, and the linear feeder.
[0007] Preferably, a worm gear is fixedly installed at the output end of the motor. The worm gear passes through the front of the fixed box and is rotatably connected to the fixed box through a bearing. A worm wheel is provided in the rotating groove. The worm wheel is fixedly installed at one end of the rotating shaft and meshes with the worm gear. By setting the worm gear and worm wheel, the motor and the rotating shaft can be driven together, and a self-locking effect is provided to ensure the stability of the first collection box and the second collection box during use.
[0008] Preferably, a buffer pad is fixedly installed at the bottom of the inner wall of the first collection box and at the top of the inner wall of the second collection box.
[0009] Preferably, a collection box is provided below the flip-over opening, and a buffer guide plate is fixedly installed on the inner wall of the collection box. A second buffer pad is fixedly installed on the top of the buffer guide plate. By setting the first buffer pad, the second buffer pad and the buffer guide plate, a certain buffering and guiding effect can be provided for the press-fit nut column when it is tilted, reducing collision wear and ensuring the subsequent use accuracy of the press-fit nut column.
[0010] Preferably, both the second buffer pad and the first buffer pad are made of wear-resistant rubber.
[0011] This utility model provides an automatic tapping machine for press-fit nut posts. This automatic tapping machine for press-fit nut posts has the following advantages:
[0012] (1) The automatic tapping machine for press-fit nut columns can automatically and promptly empty the press-fit nut columns collected in collection box one and collection box two, avoiding the accumulation and overflow of the tapped press-fit nut columns in collection box one and collection box two, which would be inconvenient for personnel to collect and process later. This solves the problem that in the existing technical solution, when the press-fit nut column container is full, personnel need to manually empty it, which may lead to untimely handling by personnel, causing the press-fit nut columns to overflow from the container onto the workbench, thereby increasing the difficulty of subsequent collection and thus increasing the labor intensity of personnel.
[0013] (2) The automatic tapping machine for press-fit nut column can play a certain buffering and guiding role when the press-fit nut column is tilted by setting buffer pad one, buffer pad two and buffer guide plate, reducing collision wear and ensuring the subsequent use accuracy of press-fit nut column. It has a simple structure and strong practicality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2This is a partial structural schematic diagram of the front cross-section of this utility model;
[0016] Figure 3 This is a partial sectional view of the side of the fixing box of this utility model;
[0017] Figure 4 This is a side sectional view of the collection box of this utility model.
[0018] In the diagram: 1. Support platform; 2. Main body of tapping equipment; 3. Turntable mechanism; 4. Vibratory feeder; 5. Linear feeder; 6. Controller; 7. Tilting port; 8. Fixing plate; 9. Gravity sensor one; 10. Collection box one; 11. Gravity sensor two; 12. Collection box two; 13. Buffer pad one; 14. Rotating shaft; 15. Rotating groove; 16. Worm gear; 17. Fixing box; 18. Worm; 19. Support leg; 20. Motor; 21. Collection box; 22. Buffer guide plate; 23. Buffer pad two. Detailed Implementation
[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] like Figure 1-4As shown, this utility model provides a technical solution: an automatic tapping machine for press-fit nut columns, including a support platform 1, a tapping device body 2 fixedly installed on the top of the support platform 1 near the rear side, a turntable mechanism 3 arranged below the tapping device body 2, the turntable mechanism 3 installed on the top of the support platform 1, a vibratory feeder 4 installed on one side of the top of the support platform 1, a linear feeder 5 connected to the vibratory feeder 4, a controller 6 fixedly installed on the top of the support platform 1, a support leg 19 fixedly installed on the bottom of the support platform 1, a flip-up opening 7 opened on the other side of the support platform 1, and a rotating shaft 14 rotatably connected to the inner wall of the flip-up opening 7 through a bearing seat. A rotating groove 15 is provided, and a rotating shaft 14 extends into the rotating groove 15 through the inner wall of the flip-out opening 7. The rotating shaft 14 is rotatably connected to the support platform 1 through a bearing. A fixing plate 8 is fixedly sleeved on the outer wall of the rotating shaft 14. Gravity sensor 19 and gravity sensor 21 are fixedly installed at the top and bottom of the fixing plate 8, respectively. Collection box 10 and collection box 22 are fixedly installed at the top of gravity sensor 19 and the bottom of gravity sensor 21, respectively. A fixing box 17 is provided below the rotating groove 15. The fixing box 17 is fixedly installed at the bottom of the support platform 1. A motor 20 is fixedly installed on the front of the fixing box 17. The rotating shaft 14 is connected to the motor 20 for transmission.
[0023] Among them, the tapping equipment body 2, turntable mechanism 3, vibratory plate 4 and linear feeder 5 are all disclosed technologies in the announcement number CN214443605U, entitled "An Automatic Tapping Machine for Press-fit Nut Column", so they are not described or drawn in detail in this article and the accompanying drawings.
[0024] Specifically, in the above technical solution, when the automatic tapping machine for press-fit nuts is in use, the press-fit nuts that have been tapped on the turntable mechanism 3 will automatically fall into the collection box 10. When the gravity sensor senses that the weight of the press-fit nuts accumulated in the collection box 10 reaches a set value, it will send a signal to the controller 6, causing the controller 6 to control the start motor 20. The motor 20 drives the worm gear 18 to rotate, the worm gear 18 drives the worm wheel 16 to rotate, the worm wheel 16 drives the rotating shaft 14 to rotate, and the rotating shaft 14 drives the fixed plate 8 to rotate 180°. The fixed plate 8, through the gravity sensor 21, drives the collection box 22 to rotate upward, and through the gravity sensor 9, drives the collection box 10 to rotate downward, so that the press-fit nuts that have been tapped in the collection box 10 fall into the collection box 21. The collection box 22 can continuously tap the press-fit nuts that have been tapped. The column is collected. When the gravity sensor 11 senses that the weight of the accumulated rivet nut column in the collection box 12 reaches the set value, it will also send a signal to the controller 6, causing the controller 6 to start the motor 20, causing the fixing plate 8 to rotate 180° again, and repeating the cycle. Through the above structure, the rivet nut columns collected in the collection box 10 and collection box 22 can be automatically and timely tilted, avoiding the accumulation and overflow of the tapped rivet nut columns in the collection box 10 and collection box 212, which would be inconvenient for subsequent collection and processing. This solves the problem in the existing technical solution that when the rivet nut column container is full, it needs to be manually tilted, which may cause the rivet nut columns to overflow onto the workbench due to untimely processing, thus increasing the difficulty of subsequent collection and increasing the labor intensity of personnel.
[0025] Furthermore, gravity sensor 19 and gravity sensor 21 are connected to controller 6 via signal, and controller 6 is electrically connected to motor 20, tapping equipment body 2, turntable mechanism 3, vibratory feeder 4, and linear feeder 5.
[0026] Furthermore, a worm gear 18 is fixedly installed at the output end of the motor 20. The worm gear 18 passes through the front of the fixed box 17 and is rotatably connected to the fixed box 17 through a bearing. A worm wheel 16 is provided in the rotating groove 15. The worm wheel 16 is fixedly installed at one end of the rotating shaft 14 and meshes with the worm gear 18.
[0027] By setting the worm gear 18 and worm wheel 16, the motor 20 and the rotating shaft 14 can be driven together, and the self-locking effect is provided to ensure the stability of the first collection box 10 and the second collection box 12 during use.
[0028] Furthermore, buffer pads 13 are fixedly installed on the bottom of the inner wall of collection box 10 and the top of the inner wall of collection box 2 12.
[0029] Furthermore, a collection box 21 is provided below the flip-out port 7, a buffer guide plate 22 is fixedly installed on the inner wall of the collection box 21, and a buffer pad 23 is fixedly installed on the top of the buffer guide plate 22.
[0030] By setting buffer pad 13, buffer pad 23 and buffer guide plate 22, the press-fit nut column can play a certain buffering and guiding role when it is tilted, reduce collision wear and ensure the subsequent use accuracy of the press-fit nut column.
[0031] Furthermore, both buffer pad 23 and buffer pad 13 are made of wear-resistant rubber.
[0032] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. An automatic tapping machine for press-fit nut columns, comprising a support platform (1), a tapping device body (2) fixedly installed on the top of the support platform (1) near the rear side, a turntable mechanism (3) provided below the tapping device body (2), the turntable mechanism (3) installed on the top of the support platform (1), a vibratory feeder (4) installed on one side of the top of the support platform (1), a linear feeder (5) connected to the vibratory feeder (4), a controller (6) fixedly installed on the top of the support platform (1), and a support leg (19) fixedly installed at the bottom of the support platform (1), characterized in that: The support platform (1) has a flip-out opening (7) near the other side. The inner wall of the flip-out opening (7) is rotatably connected to a rotating shaft (14) via a bearing seat. The support platform (1) has a rotating groove (15). The rotating shaft (14) extends movably through the inner wall of the flip-out opening (7) into the rotating groove (15). The rotating shaft (14) is rotatably connected to the support platform (1) via a bearing. A fixing plate (8) is fixedly fitted on the outer wall of the rotating shaft (14). The top and bottom ends of the fixing plate (8) are respectively fixed. Gravity sensor 1 (9) and gravity sensor 2 (11) are fixedly installed. Collection box 1 (10) and collection box 2 (12) are fixedly installed at the top of gravity sensor 1 (9) and the bottom of gravity sensor 2 (11) respectively. A fixed box (17) is provided below the rotating groove (15). The fixed box (17) is fixedly installed at the bottom of the support platform (1). A motor (20) is fixedly installed on the front of the fixed box (17). The rotating shaft (14) is connected to the motor (20) for transmission.
2. The automatic tapping machine for press-fit nut columns according to claim 1, characterized in that: The gravity sensor 1 (9) and gravity sensor 2 (11) are connected to the controller (6) via signal connection. The controller (6) is electrically connected to the motor (20), the tapping equipment body (2), the turntable mechanism (3), the vibratory plate (4), and the linear feeder (5).
3. The automatic tapping machine for press-fit nut columns according to claim 1, characterized in that: The output end of the motor (20) is fixedly installed with a worm (18), which passes through the front of the fixed box (17) and is rotatably connected to the fixed box (17) through a bearing. A worm wheel (16) is provided in the rotating groove (15), which is fixedly installed at one end of the rotating shaft (14) and meshes with the worm (18).
4. The automatic tapping machine for press-fit nut columns according to claim 1, characterized in that: Both the bottom of the inner wall of the first collection box (10) and the top of the inner wall of the second collection box (12) are fixedly installed with a buffer pad (13).
5. The automatic tapping machine for press-fit nut columns according to claim 1, characterized in that: A collection box (21) is provided below the flip-out opening (7). A buffer guide plate (22) is fixedly installed on the inner wall of the collection box (21). A buffer pad (23) is fixedly installed on the top of the buffer guide plate (22).
6. The automatic tapping machine for press-fit nut posts according to claim 5, characterized in that: Both the second buffer pad (23) and the first buffer pad (13) are made of wear-resistant rubber.