Metal pipe fitting thread machining device
By combining positioning rollers and stepper motors, the problem of metal pipes rotating during processing was solved, achieving a stable thread processing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MANDERUI PIPE IND (JIANGSU) CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, metal pipe fittings lack restraint within the support groove, causing the tapping drill bit to drive the pipe fitting to rotate synchronously, making it difficult to stably perform thread processing.
The pipe positioning structure employs two positioning rollers and a stepper motor, using gear transmission to achieve stable clamping and friction constraint of the pipe, preventing pipe rotation and ensuring stable processing by the tapping drill bit.
This technology enables stable thread processing of metal pipe fittings, ensuring that the tapping drill bit can effectively penetrate the inside of the pipe fitting, thus improving the stability and efficiency of the processing.
Smart Images

Figure CN224143673U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thread cutting technology, and in particular to a metal pipe thread processing device. Background Technology
[0002] In the field of traditional machining, threaded connections are a type of detachable fixed connection with advantages such as simple structure, reliable connection, convenient assembly and disassembly, self-locking capability, and provision of large axial force. Therefore, they are widely used in the field of fastening mechanical parts. Chinese utility model patent, authorized announcement number "CN221870559U", discloses a pipe thread processing device. This utility model stacks pipes sequentially through a feeding groove. A rotary cylinder drives the first and second support trays to rotate. The pipes in the support groove rotate along the arc-shaped groove. When the pipes reach the discharge groove, the side wall of the arc-shaped groove discharges the pipes from the discharge groove. Then, the first and second support trays are reset, realizing automatic feeding and discharging operations and improving efficiency.
[0003] In the above-mentioned technical solution, since the pipe fitting can be easily discharged from the support groove, the pipe fitting is not restricted in the support groove. As a result, when the tapping drill bit performs thread processing on the pipe fitting, it is easy for the tapping drill bit to drive the pipe fitting to rotate synchronously, causing the pipe fitting to rotate in the support groove. This makes it difficult to perform stable thread processing on the inside of the pipe fitting. Therefore, we propose a metal pipe fitting thread processing device. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a metal pipe thread processing device that can solve the problem that because the pipe can be easily discharged from the support groove, the pipe lacks restraint in the support groove, and therefore, when the tapping drill bit is used to process the thread of the pipe, it is easy for the tapping drill bit to drive the pipe to rotate synchronously, causing the pipe to rotate in the support groove, which makes it difficult to perform stable thread processing on the inside of the pipe.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a metal pipe thread processing device, comprising:
[0006] A support platform is provided, and a pipe fitting processing box is fixedly connected to the top of the support platform. A feeding box is fixedly connected to the top of the pipe fitting processing box, and the feeding box is connected to the interior of the pipe fitting processing box.
[0007] Pipe fitting positioning structure, located on the pipe fitting processing box;
[0008] The pipe fitting positioning structure includes two rotating shafts, two gears, two positioning rollers, a fixed plate, and a stepper motor. A discharge port is provided on one side of the pipe fitting processing box. Both rotating shafts are rotatably connected inside the pipe fitting processing box. Both positioning rollers are fixedly sleeved on the outer surface of the corresponding rotating shafts. One end of each rotating shaft extends rotatably to the outside of the pipe fitting processing box. Both gears are fixedly sleeved on the outer surface of the corresponding rotating shafts and mesh with each other. The fixed plate is fixedly connected to one side of the pipe fitting processing box. The stepper motor is fixedly mounted on the fixed plate. The output end of the stepper motor rotatably passes through the fixed plate and is fixedly connected to the corresponding rotating shaft. A through hole is provided on the side of the pipe fitting processing box away from the stepper motor.
[0009] Preferably, a positioning plate is slidably connected inside the feeding box, and a pull rod is fixedly connected to the side of the positioning plate near the stepper motor. The end of the pull rod away from the positioning plate extends slidably to the outside of the feeding box. A spring is sleeved on the outer surface of the pull rod. One end of the spring is fixedly connected to the feeding box, and the end of the spring away from the feeding box is fixedly connected to the pull rod. Multiple rotating columns are rotatably connected to the side of the positioning plate away from the pull rod.
[0010] Preferably, the top of the support platform is fixedly connected to two sliding frames, and the interior of each sliding frame is slidably connected to a limiting slide plate. The top of the two limiting slide plates is fixedly connected to an mounting plate.
[0011] Preferably, a drive motor is fixedly installed on the side of the mounting plate away from the pipe processing box, and the output end of the drive motor rotates through the mounting plate and is fixedly connected to a tapping drill bit.
[0012] Preferably, an electric push rod is fixedly installed on the top of the support platform, and the telescopic end of the electric push rod is fixedly connected to the mounting plate.
[0013] Preferably, both of the limiting slides are T-shaped structures.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This metal pipe thread processing device uses two positioning rollers to cooperate with each other, which facilitates the rotation of the pipe and provides a stable clamping. When the positioning rollers rotate, they not only push the pipe forward, but also constrain the rotation trend of the pipe by friction, thereby preventing the pipe from rotating during processing. This ensures that the tapping drill bit can act stably on the pipe and achieve stable thread processing inside the pipe. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the gear structure of this utility model;
[0019] Figure 3 This is a schematic cross-sectional view of the pipe fitting processing box of this utility model;
[0020] Figure 4 This is a schematic cross-sectional view of the sliding frame structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the positioning plate structure of this utility model.
[0022] Reference numerals in the attached drawings: 1. Support platform; 2. Pipe processing box; 3. Feeding box; 4. Sliding frame; 5. Mounting plate; 6. Electric push rod; 7. Drive motor; 8. Tapping drill bit; 9. Through hole; 10. Discharge port; 11. Spring; 12. Pull rod; 13. Fixing plate; 14. Stepper motor; 15. Rotating shaft; 16. Gear; 17. Limiting slide plate; 18. Positioning plate; 19. Positioning roller. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0025] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0027] Please see Figure 1-5This utility model provides a technical solution: a metal pipe thread processing device, comprising:
[0028] Support platform 1, with pipe fitting processing box 2 fixedly connected to the top of support platform 1, and feeding box 3 fixedly connected to the top of pipe fitting processing box 2, with feeding box 3 communicating with the interior of pipe fitting processing box 2;
[0029] Pipe fitting positioning structure, which is located on pipe fitting processing box 2;
[0030] The pipe fitting positioning structure includes two rotating shafts 15, two gears 16, two positioning rollers 19, a fixed plate 13, and a stepper motor 14. A discharge port 10 is provided on one side of the pipe fitting processing box 2. Both rotating shafts 15 are rotatably connected inside the pipe fitting processing box 2. Both positioning rollers 19 are fixedly sleeved on the outer surface of the corresponding rotating shafts 15. One end of each rotating shaft 15 extends rotatably to the outside of the pipe fitting processing box 2. Both gears 16 are fixedly sleeved on the outer surface of the corresponding rotating shafts 15 and mesh with each other. The fixed plate 13 is fixedly connected to one side of the pipe fitting processing box 2. The stepper motor 14 is fixedly mounted on the fixed plate 13. The output end of the stepper motor 14 rotatably passes through the fixed plate 13 and is fixedly connected to the corresponding rotating shaft 15. A through hole 9 is provided on the side of the pipe fitting processing box 2 away from the stepper motor 14.
[0031] A positioning plate 18 is slidably connected inside the feeding box 3. A pull rod 12 is fixedly connected to the side of the positioning plate 18 near the stepper motor 14. The end of the pull rod 12 away from the positioning plate 18 slides to the outside of the feeding box 3. A spring 11 is sleeved on the outer surface of the pull rod 12. One end of the spring 11 is fixedly connected to the feeding box 3, and the end of the spring 11 away from the feeding box 3 is fixedly connected to the pull rod 12. Multiple rotating columns are rotatably connected to the side of the positioning plate 18 away from the pull rod 12.
[0032] The top of the support platform 1 is fixedly connected to two sliding frames 4. The inside of each sliding frame 4 is slidably connected to a limiting slide plate 17. The top of each limiting slide plate 17 is fixedly connected to a mounting plate 5. Both limiting slide plates 17 are "T" shaped structures. The side of the mounting plate 5 away from the pipe processing box 2 is fixedly installed with a drive motor 7. The output end of the drive motor 7 rotates through the mounting plate 5 and is fixedly connected to a tapping drill bit 8. The top of the support platform 1 is fixedly installed with an electric push rod 6. The telescopic end of the electric push rod 6 is fixedly connected to the mounting plate 5.
[0033] Furthermore, when using this device, the metal pipe is placed into the loading box 3, and the pull rod 12 is pulled. The positioning plate 18, driven by the pull rod, stretches the spring 11 and moves away from the pipe processing box 2. With the assistance of the rotating column of the positioning plate 18, the pipe smoothly enters the pipe processing box 2. The pull rod 12 is released, the spring 11 rebounds, and the positioning plate 18 abuts against the pipe, thus facilitating the limiting of the pipe. The stepper motor 14 is started, and the output end of the motor drives the rotating shaft 15 connected to it to rotate. The gear 16 on the rotating shaft 15 rotates accordingly. Through meshing, it drives another gear 16 and the rotating shaft 15 to rotate synchronously in opposite directions, thereby causing the two positioning rollers 19 to rotate in opposite directions. The positioning grooves on the two positioning rollers 19 can clamp the pipe at the bottom of the loading box 3, so that the pipe can be clamped between the two positioning rollers 19 and stop rotating when it reaches the through hole 9, so that the center of the pipe can correspond to the center of the through hole 9, ensuring that the pipe is in the processing center position.
[0034] The electric push rod 6 is activated, pushing the mounting plate 5, along with the drive motor 7 and the tapping drill bit 8, closer to the pipe. When the tapping drill bit 8 contacts the pipe, the drive motor 7 is activated, causing the tapping drill bit 8 to rotate and perform thread processing on the pipe. During this process, the limiting slide plate 17 slides within the sliding frame 4 to ensure the smooth movement of the mounting plate 5 and prevent deviation during processing. After processing is completed, the electric push rod 6 retracts, bringing the tapping drill bit 8 back to its initial position, and the pipe is discharged from the discharge port 10 under the rotation of the two positioning rollers 19.
[0035] This device uses the cooperation of two positioning rollers 19 to facilitate the rotation and secure clamping of the pipe fitting. When the positioning rollers 19 rotate, they not only push the pipe fitting forward, but also constrain the rotation trend of the pipe fitting by friction, thereby preventing the pipe fitting from rotating during processing and ensuring that the tapping drill bit can act stably on the pipe fitting to achieve stable thread processing inside the pipe fitting.
[0036] Structural Description: Support Platform 1: Provides a stable support base for the entire metal pipe threading device and bears the weight of other components;
[0037] Pipe Fitting Processing Box 2: Constructs processing space to accommodate key components such as pipe fitting positioning structures;
[0038] Feeding box 3: Stores metal pipe fittings to be processed, and through the design of connecting with the pipe fitting processing box 2, realizes the orderly feeding of pipe fittings;
[0039] Rotating shaft 15: Serves as the mounting carrier for positioning roller 19. It rotates inside the pipe processing box 2 and drives positioning roller 19 to transport and position pipes with the help of gear 16.
[0040] Gear 16: Fixed on the rotating shaft 15, it achieves synchronous operation of the two positioning rollers 19 through mutual meshing;
[0041] Positioning roller 19: Supports the pipe and, driven by the rotating shaft 15, pushes the pipe to move by friction while constraining the rotation of the pipe;
[0042] Positioning plate 18: It slides inside the feeding box and, with the help of the spring force, holds the pipe and limits its position.
[0043] Pull rod 12: By pulling pull rod 12, the positioning plate 18 is moved to realize the loading and positioning of the pipe fittings in the feeding box 3;
[0044] Spring 11: Provides elastic force to the positioning plate 18, so that it continuously applies pressure to the pipe fitting and ensures stable positioning of the pipe fitting;
[0045] Sliding frame 4: Fixed to the top of the support platform, it provides a sliding track for the limiting slide plate 17 and guides the mounting plate 5 to move smoothly;
[0046] Limiting slide plate 17: It slides within the sliding frame 4 to limit the movement direction of the mounting plate 5 and ensure the stability of the mounting plate 5 during movement. Due to its "T" shaped structure, it can effectively prevent the mounting plate 5 from detaching from the sliding frame 4.
[0047] Mounting plate 5: Installs the drive motor and tapping drill bit. Under the push of the electric push rod, it moves the tapping drill bit closer to or away from the pipe fitting to achieve thread processing.
[0048] Tapping drill bit 8: It acts directly on the pipe fitting to cut the required thread;
[0049] Electric push rod 6: Through telescopic movement, it pushes the mounting plate to move, controls the distance between the tapping drill bit and the pipe fitting, and realizes the feed operation of thread processing.
[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A metal pipe threading apparatus characterized by comprising: include: Support platform (1), the top of the support platform (1) is fixedly connected to the pipe fitting processing box (2), the top of the pipe fitting processing box (2) is fixedly connected to the feeding box (3), and the feeding box (3) is connected to the interior of the pipe fitting processing box (2). Pipe positioning structure, the pipe positioning structure is located on the pipe processing box (2); The pipe fitting positioning structure includes two rotating shafts (15), two gears (16), two positioning rollers (19), a fixing plate (13) and a stepper motor (14). A discharge port (10) is provided on one side of the pipe fitting processing box (2). Both rotating shafts (15) are rotatably connected inside the pipe fitting processing box (2). Among them, two positioning rollers (19) are fixedly sleeved on the outer surface of the corresponding rotating shaft (15), one end of the two rotating shafts (15) extends to the outside of the pipe processing box (2), and two gears (16) are fixedly sleeved on the outer surface of the corresponding rotating shaft (15). Among them, two gears (16) mesh with each other, a fixed plate (13) is fixedly connected to one side of the pipe processing box (2), and a stepper motor (14) is fixedly installed on the fixed plate (13); The output end of the stepper motor (14) rotates through the fixed plate (13) and is fixedly connected to the corresponding rotating shaft (15). The pipe fitting processing box (2) has a through hole (9) on the side away from the stepper motor (14).
2. A metal pipe threading apparatus as defined in claim 1, wherein: The loading box (3) is slidably connected to a positioning plate (18). A pull rod (12) is fixedly connected to the side of the positioning plate (18) near the stepper motor (14). The end of the pull rod (12) away from the positioning plate (18) extends slidably to the outside of the loading box (3). Among them, the spring (11) is sleeved on the outer surface of the pull rod (12), one end of the spring (11) is fixedly connected to the feeding box (3), the end of the spring (11) away from the feeding box (3) is fixedly connected to the pull rod (12), and multiple rotating columns are rotatably connected to the side of the positioning plate (18) away from the pull rod (12).
3. A metal pipe threading apparatus as defined in claim 1, wherein: The top of the support platform (1) is fixedly connected to two sliding frames (4), and the inside of each sliding frame (4) is slidably connected to a limiting slide plate (17). The top of the two limiting slide plates (17) is fixedly connected to an mounting plate (5).
4. A metal pipe threading apparatus as defined in claim 3, wherein: A drive motor (7) is fixedly installed on the side of the mounting plate (5) away from the pipe processing box (2). The output end of the drive motor (7) rotates through the mounting plate (5) and is fixedly connected to a tapping drill bit (8).
5. A metal pipe threading apparatus as defined in claim 3, wherein: An electric push rod (6) is fixedly installed on the top of the support platform (1), and the telescopic end of the electric push rod (6) is fixedly connected to the mounting plate (5).
6. A metal pipe threading apparatus as defined in claim 3, wherein: Both of the aforementioned limiting slides (17) are "T" shaped structures.
Citation Information
Patent Citations
Pipe fitting thread machining device
CN221870559U