Air pressure tapping machine for pipe assembly connecting lock nut
Patent Information
- Application Number
- CN202522153919.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-11
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-10-11
AI Technical Summary
[0003]现有技术中，防松螺母的攻牙加工与密封结构（如环形凹槽）加工多为两道独立工序，需分别使用攻牙设备与铣槽设备完成，不仅需人工转移工件，导致加工效率低、工序衔接耗时，还易因二次装夹产生定位误差，使环形凹槽与螺纹孔同轴度偏差，影响密封圈安装后的密封效果
[0012]与现有技术相比，本实用新型的有益效果是：通过在攻牙钻头外侧一体成型切割环，可在单次攻牙加工中同步完成螺纹孔攻丝与密封用环形凹槽切割，无需分序加工与人工转移工件，又避免二次装夹误差，确保环形凹槽与螺纹孔同轴度，保障后续密封圈安装后的密封性能，契合管路总成对防松螺母的密封要求。
Smart Images
Figure CN224701565U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of pneumatic tapping machines, specifically a pneumatic tapping machine with an anti-loosening nut for connecting pipe assemblies. Background Technology
[0002] In pipeline assembly connection scenarios, anti-loosening nuts must simultaneously meet both anti-loosening and sealing performance requirements to ensure the connection stability of pipelines (such as hydraulic pipelines, pneumatic pipelines, fluid transmission pipelines, etc.) and prevent media leakage.
[0003] In the existing technology, the tapping of the anti-loosening nut and the processing of the sealing structure (such as the annular groove) are mostly two independent processes, which need to be completed by tapping equipment and milling equipment respectively. This not only requires manual transfer of the workpiece, resulting in low processing efficiency and time-consuming process connection, but also easily causes positioning errors due to secondary clamping, causing the annular groove and the threaded hole to deviate from coaxiality, affecting the sealing effect after the sealing ring is installed.
[0004] Meanwhile, the workpiece positioning components (such as turntables and placement slots) of traditional tapping equipment are mostly fixed integrated designs. When it is necessary to process anti-loosening nuts for pipe connections of different sizes, it is necessary to disassemble and readjust the positioning components in a complicated manner, resulting in a long replacement cycle. This makes it difficult to adapt to the rapid switching processing requirements of anti-loosening nuts of multiple specifications in pipe assembly production, which restricts the overall production efficiency. To address this, we propose a pneumatic tapping machine for anti-loosening nuts for pipe assembly connections. Utility Model Content
[0005] The purpose of this invention is to provide a pneumatic tapping machine for anti-loosening nuts used in pipe assembly connections, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic tapping machine for connecting pipe assemblies with anti-loosening nuts, comprising a pneumatic tapping machine, wherein an mounting plate is embedded in the top of the worktable of the pneumatic tapping machine, a turntable is provided on the top of the mounting plate, a rotating shaft is provided at the bottom of the turntable, a square block is provided at the bottom of the rotating shaft, a servo motor is installed at the bottom of the worktable of the pneumatic tapping machine, a square hole is opened at the top of the output end of the servo motor, the square block is inserted into the square hole, bolts are evenly connected between the mounting plate and the worktable of the pneumatic tapping machine, placement grooves are evenly opened on the outer side wall of the turntable, a tapping drill bit is placed on the top of the turntable, and a cutting ring is integrally formed on the outer side of the tapping drill bit.
[0007] Preferably, the top of the mounting plate has a through opening and a discharge opening, the tapping drill bit is fixed to the bottom of the drive end of the pneumatic tapping machine by a three-jaw chuck, the placement groove runs through the upper and lower sides of the turntable, the top of the mounting plate has a through opening, the inner side wall of the mounting opening has an annular groove, the rotating shaft is set in the mounting opening, and a limit ring is fixedly sleeved on the outer side of the rotating shaft, the limit ring is set in the annular groove.
[0008] Preferably, the top of the workbench of the pneumatic tapping machine has a first groove, and the bottom of the first groove has a second groove extending through it, with the mounting plate installed in the first groove.
[0009] Preferably, the top of the mounting plate is uniformly provided with a first through hole, and the bottom of the inner sidewall of the first groove is uniformly provided with threaded holes, and the bolt passes through the first through hole and is screwed into the threaded hole.
[0010] Preferably, a support frame is provided in the second groove, the servo motor is located at the bottom of the support frame, a second through hole is provided at the top of the support frame, and the output end of the servo motor is located in the second through hole.
[0011] Preferably, a support block is provided on the top front side of the mounting plate, an electric telescopic rod is provided on the front side of the support block, a third through hole is provided on the front side of the support block, and the telescopic end of the electric telescopic rod is provided in the third through hole.
[0012] Compared with the prior art, the beneficial effects of this utility model are: by integrally forming a cutting ring on the outside of the tapping drill bit, the threading of the threaded hole and the cutting of the sealing annular groove can be completed simultaneously in a single tapping process, eliminating the need for sequential processing and manual transfer of the workpiece, avoiding secondary clamping errors, ensuring the coaxiality of the annular groove and the threaded hole, guaranteeing the sealing performance after the subsequent sealing ring is installed, and meeting the sealing requirements of the pipeline assembly for the anti-loosening nut.
[0013] The mounting plate is detachably connected to the pneumatic tapping machine worktable via bolts, and the positioning components such as the turntable and placement slot are integrated with the mounting plate. For anti-loosening nuts for pipe connections of different sizes, the mounting plate with the corresponding positioning components can be replaced simply by unscrewing the bolts. Combined with the quick disassembly of the tapping drill bit, it meets the flexible processing needs of anti-loosening nuts of multiple specifications in the production of pipe assemblies.
[0014] The rotating shaft is matched with the annular groove of the mounting plate through the limiting ring to ensure the stable rotation of the turntable; the servo motor transmits power through the plug-in matching of the square block and the square hole, which has high transmission efficiency and is easy to disassemble and assemble. The overall structure is adapted to the high-frequency, low-vibration processing requirements of the pneumatic tapping machine, ensuring the stability of the equipment in long-term continuous production, and is suitable for the batch processing of anti-loosening nuts for pipe assemblies. Attached Figure Description
[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0016] In the attached diagram: Figure 1 This is a schematic diagram of the structure of a pneumatic tapping machine for making anti-loosening nuts for connecting pipe assemblies according to the present invention; Figure 2 This is a partial sectional view of the right side of a pneumatic tapping machine for providing anti-loosening nuts for pipe assembly connections, according to the present invention. Figure 3 This utility model Figure 2 Enlarged view of part A.
[0017] In the diagram: 1. Pneumatic tapping machine; 11. Mounting plate; 12. Bolt; 13. Electric telescopic rod; 14. Support block; 15. Turntable; 16. Servo motor; 17. Support frame; 18. Block; 19. Shaft; 2. Limit ring; 21. Clearance opening; 22. Discharge port; 23. Tapping drill bit; 24. Cutting ring. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-3A pneumatic tapping machine for connecting pipe assemblies with anti-loosening nuts includes a pneumatic tapping machine 1. A mounting plate 11 is embedded in the top of the worktable of the pneumatic tapping machine 1. A turntable 15 is rotatably mounted on the top of the mounting plate 11. A rotating shaft 19 is fixedly mounted on the bottom of the turntable 15. A block 18 is fixedly mounted on the bottom of the rotating shaft 19. A servo motor 16 is mounted on the bottom of the worktable of the pneumatic tapping machine 1. A square hole is opened at the top of the output end of the servo motor 16, and the block 18 is inserted into the square hole. The servo motor 16 drives the block 18 to rotate, which in turn drives the rotating shaft 19 to rotate, and the rotating shaft 19 drives the turntable 15 to rotate. Bolts are evenly connected between the mounting plate 11 and the worktable of the pneumatic tapping machine 1. 12. The outer wall of the turntable 15 is evenly provided with placement grooves. A tapping drill bit 23 is placed on the top of the turntable 15. A cutting ring 24 is integrally formed on the outer side of the tapping drill bit 23. The top of the mounting plate 11 is provided with a clearance opening 21 and a discharge opening 22. The tapping drill bit 23 is fixed to the bottom of the drive end of the pneumatic tapping machine 1 by a three-jaw chuck. The placement grooves extend through the upper and lower sides of the turntable 15. The top of the mounting plate 11 is provided with a mounting opening. An annular groove is provided on the inner side wall of the mounting opening. The rotating shaft 19 is rotatably installed in the mounting opening. A limit ring 2 is fixedly sleeved on the outer side of the rotating shaft 19. The limit ring 2 is rotatably installed in the annular groove. The limit ring 2 assists the rotating shaft 19 to rotate stably, thereby assisting the turntable 15 to rotate stably. A support block 14 is fixedly installed on the top front side of the mounting plate 11. An electric telescopic rod 13 is fixedly installed on the front side of the support block 14. A third through hole is opened through the front side of the support block 14. The telescopic end of the electric telescopic rod 13 is slidably installed in the third through hole. When the anti-loosening nut is placed in the placement groove of the turntable 15, the turntable 15 will drive the anti-loosening nut to move to the rear side of the support block 14. At this time, the anti-loosening nut is located at the top of the clearance opening 21. Then the telescopic end of the electric telescopic rod 13 moves backward to press the anti-loosening nut against the placement groove. Then the drive end of the pneumatic tapping machine 1 drives the tapping drill bit 23 to rotate and move downward to tap the anti-loosening nut. When the tapping drill bit 23 finishes tapping and continues to move downward, the tapping is complete. The cutting ring 24 on the outside of the drill bit 23 moves downward with the tapping drill bit 23 and contacts the top of the anti-loosening nut. The cutting ring 24 creates an annular groove on the outside of the threaded hole of the anti-loosening nut. At this time, the tapping drill bit 23 is located in the relief opening 21. The annular groove created on the anti-loosening nut by the cutting ring 24 allows the sealing ring to be installed in the annular groove when the anti-loosening nut is used, thereby improving the sealing performance of the anti-loosening nut. After the anti-loosening nut is processed and the tapping drill bit 23 moves upward and resets, the servo motor 16 drives the turntable 15 to continue rotating. When the turntable 15 moves the processed anti-loosening nut to the discharge port 22, the anti-loosening nut will fall through the discharge port 22, thereby realizing the discharge operation.
[0020] The top of the worktable of the pneumatic tapping machine 1 has a first groove, and the bottom of the first groove has a second groove. The mounting plate 11 is installed in the first groove. The top of the mounting plate 11 has a first through hole evenly distributed through it. The bottom of the inner side wall of the first groove has threaded holes evenly distributed. The bolt 12 passes through the first through hole and is screwed into the threaded hole. The mounting plate 11 is placed into the first groove of the pneumatic tapping machine 1, and the bolt 12 passes through the first through hole of the mounting plate 11 and is screwed into the threaded hole in the first groove, thereby fixing the mounting plate 11 in the first groove. At this time, the block 18 is inserted into the square hole of the servo motor 16. A support frame 17 is fixedly installed in the second groove. The servo motor 16 is fixedly installed at the bottom of the support frame 17. The top of the support frame 17 has a second through hole, and the output end of the servo motor 16 is rotatably installed in the second through hole.
[0021] Working principle: The mounting plate 11 is placed into the first groove of the pneumatic tapping machine 1, and the bolt 12 is threaded through the first through hole of the mounting plate 11 and screwed into the threaded hole in the first groove to fix the mounting plate 11 in the first groove. At this time, the block 18 is inserted into the square hole of the servo motor 16. The servo motor 16 drives the block 18 to rotate, which in turn drives the rotating shaft 19 to rotate, which in turn drives the turntable 15 to rotate. The anti-loosening nut is placed in the placement groove of the turntable 15. When the turntable 15 rotates, it will move the anti-loosening nut to the rear side of the support block 14. At this time, the anti-loosening nut is located at the top of the clearance opening 21. Then, the extension end of the electric telescopic rod 13 moves backward to press the anti-loosening nut against the placement groove. Then, the drive end of the pneumatic tapping machine 1 drives the tapping drill bit 23 to rotate and move downward to press the anti-loosening nut against the clearance opening 21. When the tapping drill bit 23 finishes tapping and continues to move downwards, the cutting ring 24 on the outer side of the tapping drill bit 23 will move downwards with the tapping drill bit 23 and contact the top of the anti-loosening nut. The cutting ring 24 opens an annular groove on the outer side of the threaded hole of the anti-loosening nut. At this time, the tapping drill bit 23 will be located in the relief opening 21. The annular groove opened on the anti-loosening nut by the cutting ring 24 can be used to install the sealing ring in the annular groove, thereby improving the sealing performance of the anti-loosening nut. When the anti-loosening nut is finished and the tapping drill bit 23 moves upwards and resets, the servo motor 16 drives the turntable 15 to continue rotating. When the turntable 15 moves the finished anti-loosening nut to the discharge port 22, the anti-loosening nut will fall through the discharge port 22, thereby realizing the discharge work.
[0022] When dealing with different sizes of anti-loosening nuts, simply unscrew the bolt 12 and remove the mounting plate 11 from the first groove of the pneumatic tapping machine 1. Then, the mounting plate 11 with different sizes of positioning components can be quickly replaced, and the tapping drill bit 23 can be disassembled and replaced.
Claims
1. A pneumatic tapping machine for securing anti-loosening nuts in pipe assembly connections, characterized in that, The device includes a pneumatic tapping machine (1), on which an mounting plate (11) is embedded on the top of the worktable. A turntable (15) is provided on the top of the mounting plate (11). A rotating shaft (19) is provided at the bottom of the turntable (15). A block (18) is provided at the bottom of the rotating shaft (19). A servo motor (16) is installed at the bottom of the worktable of the pneumatic tapping machine (1). A square hole is opened at the top of the output end of the servo motor (16). The block (18) is inserted into the square hole. Bolts (12) are evenly connected between the mounting plate (11) and the worktable of the pneumatic tapping machine (1). Placement slots are evenly opened on the outer side wall of the turntable (15). A tapping drill bit (23) is placed on the top of the turntable (15). A cutting ring (24) is integrally formed on the outer side of the tapping drill bit (23).
2. The pneumatic tapping machine for anti-loosening nuts for pipe assembly connections according to claim 1, characterized in that: The top of the mounting plate (11) is provided with a clearance opening (21) and a discharge opening (22). The tapping drill bit (23) is fixed to the bottom of the drive end of the pneumatic tapping machine (1) by a three-jaw chuck. The placement groove passes through the upper and lower sides of the turntable (15). The top of the mounting plate (11) is provided with a mounting opening. The inner side wall of the mounting opening is provided with an annular groove. The rotating shaft (19) is set in the mounting opening. The outer side of the rotating shaft (19) is fixedly sleeved with a limiting ring (2). The limiting ring (2) is set in the annular groove.
3. A pneumatic tapping machine for anti-loosening nuts for pipe assembly connections according to claim 1, characterized in that: The top of the workbench of the pneumatic tapping machine (1) has a first groove, and the bottom of the first groove has a second groove. The mounting plate (11) is installed in the first groove.
4. A pneumatic tapping machine for anti-loosening nuts for pipe assembly connections according to claim 3, characterized in that: The top of the mounting plate (11) is uniformly provided with a first through hole, and the bottom of the inner sidewall of the first groove is uniformly provided with a threaded hole. The bolt (12) passes through the first through hole and is screwed into the threaded hole.
5. A pneumatic tapping machine for anti-loosening nuts for pipe assembly connections according to claim 3, characterized in that: A support frame (17) is provided in the second groove. The servo motor (16) is located at the bottom of the support frame (17). A second through hole is provided at the top of the support frame (17). The output end of the servo motor (16) is located in the second through hole.
6. A pneumatic tapping machine for anti-loosening nuts for pipe assembly connections according to claim 1, characterized in that: A support block (14) is provided on the top front side of the mounting plate (11), and an electric telescopic rod (13) is provided on the front side of the support block (14). A third through hole is provided on the front side of the support block (14), and the telescopic end of the electric telescopic rod (13) is provided in the third through hole.