A hydraulic pipe joint threading apparatus for improved sealing

Abstract

The application discloses a hydraulic pipe joint thread machining equipment with improved sealing, and relates to the technical field of thread machining equipment.The hydraulic pipe joint thread machining equipment comprises a machining platform, a lifting gantry is fixedly installed on the top of the machining platform, a rotating arm is fixedly installed on the top of the lifting gantry, the rotating end of the rotating arm faces downward and is fixedly installed with a jaw drive, the bottom of the two driving ends of the jaw drive is fixedly installed with clamping ends, and the bottom of the clamping ends is fixedly installed with clamping semicircular jaws.The tapping mechanism and the key groove opening mechanism are arranged to be matched with each other, the continuous machining of internal threads and key grooves is completed, the pipe to be machined is stably positioned through meshing, the machining precision of the key groove is ensured, the internal threads of other non-machining areas are protected due to the fact that other internal thread areas are blocked by machine taps, the internal threads are prevented from being damaged during the machining of the key groove, and the machining precision of the internal threads is ensured.

Description

Technical Field

[0001] This invention relates to the field of thread processing equipment technology, and more specifically to a hydraulic pipe joint thread processing equipment for improving sealing performance. Background Technology

[0002] Hydraulic pipe fittings are an important part of the hydraulic system pipe assembly. They are key components used to connect various parts of the hydraulic system (such as oil pipes, valves, cylinders, etc.), ensuring the leakage-free transmission of hydraulic oil under high pressure. Their core functions include sealing, pressure resistance, and quick assembly / disassembly. According to their structure, they can be divided into various types such as threaded, flanged, and compression fittings. Among them, threaded hydraulic pipe fittings can be divided into internal thread type and external thread type according to the thread distribution. The processing method is mostly to directly machine the threads on the hydraulic pipe fitting, which can improve the connection strength between the pipe fitting and the hydraulic pipe, and also improve the sealing performance between the pipe fitting and the hydraulic pipe.

[0003] To further improve the stability and sealing performance of hydraulic joints, some special hydraulic pipe joints will have a keyway machining process added to prevent the threaded joint from loosening or sliding under high pressure. However, the current processing method for the keyway of threaded hydraulic pipe joints generally requires separate machining of the thread and the keyway, resulting in a long machining interval and easy damage to the thread. Therefore, a thread machining equipment for hydraulic pipe joints to improve sealing performance is proposed. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the current processing method for keyways of threaded hydraulic pipe joints generally requires separate processing of threads and keyways, resulting in a long processing interval and easy damage to the threads. This invention provides a thread processing device for hydraulic pipe joints to improve sealing performance.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A hydraulic pipe fitting thread processing device for improving sealing performance includes a processing platform. A lifting gantry is fixedly installed on the top of the processing platform. A rotating arm is fixedly installed on the top of the lifting gantry. A gripper driver is fixedly installed at the rotating end of the rotating arm facing downward. A clamping end is fixedly installed at the bottom of each of the two driving ends of the gripper driver. A clamping semicircular jaw is fixedly installed at the bottom of each clamping end. The two clamping semicircular jaws are symmetrically arranged. Arc-shaped baffles are fixedly installed at both ends of the clamping semicircular jaws. A pipe fitting to be processed is placed between the two clamping semicircular jaws and the four arc-shaped baffles. The top of the processing platform is provided with a tapping mechanism for internal thread processing of the pipe fitting to be processed and a keyway opening mechanism for keyway processing of the pipe fitting to be processed.

[0007] The tapping mechanism includes a thread opening platform fixedly installed on the top of the processing platform. A first spiral driver is fixedly installed on the top of the thread opening platform. A first assembly rod is fixedly installed on the driving end of the first spiral driver. A machine tap is fixedly installed on the end of the first assembly rod facing the pipe to be processed. A broaching relief groove is opened on the end of the machine tap facing the pipe to be processed.

[0008] Furthermore, the keyway opening mechanism includes a rotary table fixedly installed on the top of the machining platform. A linear module is fixedly installed on the top of the drive end of the rotary table. An industrial dust collector is fixedly installed on the top of the drive end of the linear module. A horizontally arranged eccentric wheel and a limiting cylinder are fixedly installed on the top of the industrial dust collector. A hinge connecting rod is rotatably sleeved on the drive end of the eccentric wheel. A broaching slide rod is rotatably installed on one end of the hinge connecting rod. The broaching slide rod is slidably installed inside the limiting cylinder. A broaching cutter head adapted to the broaching clearance groove is fixedly installed on one end of the broaching slide rod.

[0009] Furthermore, a horizontally arranged second spiral driver is fixedly installed on the top of the industrial dust collector. The driving end of the second spiral driver is away from the pipe to be processed and a second assembly rod is fixedly installed thereon. A dust collection pipe is fixedly installed at one end of the second assembly rod. A miniature pressure sensor is fixedly installed on the side wall of the dust collection pipe. A pressure measuring wheel frame is fixedly installed on the sensing end of the miniature pressure sensor. An arc-shaped conical wheel is rotatably installed on the pressure measuring wheel frame.

[0010] Furthermore, a support frame is fixedly installed on one side of the top of the industrial dust collector, and a positioning strip box is fixedly installed at one end of the support frame. The positioning strip box is located below the broaching head and is adapted to the broaching relief groove. Multiple reinforcing frames are fixedly installed inside the positioning strip box.

[0011] Furthermore, a first suction pipe is fixedly installed on the side wall of the second assembly rod, one end of the first suction pipe is connected to the dust removal pipe, a first suction end is provided on one side of the industrial dust collector, and the other end of the first suction pipe is connected to the first suction end.

[0012] Furthermore, a second suction pipe is fixedly installed at one end of the positioning strip box away from the pipe to be processed, and a second suction end is provided on one side of the industrial dust collector, with the other end of the second suction pipe connected to the second suction end.

[0013] Furthermore, the positioning strip box has dust suction holes on one end facing the pipe to be processed and on the bottom side wall.

[0014] Furthermore, the inner wall of the clamping semi-circular claw is provided with multiple evenly distributed receiving grooves, and a shifting wheel is rotatably installed inside each receiving groove. A shifting motor assembly is fixedly installed on one side of the clamping end. The driving end of the shifting motor assembly is drivenly connected to the multiple shifting wheels, and a pre-tightening rubber sleeve is fixedly sleeved on each shifting wheel.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention sets up a tapping mechanism and a keyway opening mechanism, so that the two cooperate with each other to complete the continuous processing of internal threads and keyways. At the same time, the pipe to be processed is stably limited by the meshing action, ensuring the accuracy of keyway processing. Furthermore, since other internal thread areas are blocked by machine taps, the internal threads in other non-processed areas are protected, avoiding accidental damage to the internal threads during keyway processing and ensuring the accuracy of internal thread processing.

[0017] 2. By setting up a positioning strip box, the present invention ensures that during the process of the linear module driving the industrial dust collector to move towards the pipe to be processed, the positioning strip box will be inserted into the pipe to be processed before the broaching head and will be inserted into the broaching relief groove, thereby playing an internal limiting role. Combined with the meshing action of the machine tap and the internal thread and the blocking action of the arc baffle, the limiting effect of the pipe to be processed is further improved.

[0018] 3. By setting a second suction pipe, the present invention allows the broaching waste to fall into the positioning strip box during the keyway machining process, thereby improving the chip removal capacity during keyway machining. The industrial dust collector uses the second suction pipe to suck up the waste accumulated inside the positioning strip box, greatly reducing the residue of waste inside the pipe to be processed. The suction holes at one end and inside the positioning strip box can increase the suction area of ​​the positioning strip box for waste, thereby improving the suction effect.

[0019] 4. By setting up an arc-shaped conical wheel, after processing, the linear module drives the arc-shaped conical wheel to stay at one end of the pipe to be processed. Then, the second spiral driver drives the arc-shaped conical wheel to roll along the internal thread to perform contact pressure measurement on the internal thread. This causes a change in the pressure at the sensing end of the micro pressure sensor, which is then converted into an electrical signal by the micro pressure sensor to detect the defect location of the internal thread, thus achieving timely detection of internal thread processing. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the lifting gantry frame and gripper driver of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the gripper driver and the gripping semi-circular claw of the present invention;

[0023] Figure 4 This is the present invention. Figure 3 Schematic diagram of the structure at point A in the middle;

[0024] Figure 5 This is a three-dimensional structural diagram of the tapping mechanism of the present invention;

[0025] Figure 6 This is a first-view three-dimensional structural diagram of the keyway opening mechanism of the present invention;

[0026] Figure 7 This is a second-view three-dimensional structural diagram of the keyway opening mechanism of the present invention;

[0027] Figure 8 This is the present invention. Figure 7 Schematic diagram of the structure at point B;

[0028] Figure 9 This is a three-dimensional structural diagram of the positioning strip box and the second suction tube of the present invention.

[0029] Reference numerals: 1. Machining platform; 2. Lifting gantry frame; 3. Rotating arm; 4. Gripper driver; 5. Gripping end; 6. Gripping semi-circular jaw; 601. Receiving groove; 7. Arc-shaped baffle; 8. Pipe to be processed; 9. Threading table; 10. First screw driver; 11. First assembly rod; 12. Machine tap; 1201. Broaching relief groove; 13. Rotary table; 14. Linear module; 15. Industrial dust collector; 16. Eccentric wheel; 17. Limit switch 18. Cylinder frame; 19. Hinge link; 20. Broaching slide bar; 21. Broaching cutter head; 22. Second spiral actuator; 23. Second assembly rod; 24. Dust removal pipe; 25. Miniature pressure sensor; 26. Pressure measuring wheel frame; 27. Arc-shaped conical wheel; 28. First suction pipe; 29. ​​Support frame; 20. Positioning strip box; 2901. Suction hole; 30. Reinforcing frame; 31. Second suction pipe; 32. Shifting wheel; 33. Shifting motor assembly; 34. Pre-tightening rubber sleeve. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0032] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention 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 limiting the present invention.

[0034] like Figures 1 to 9 As shown, a hydraulic pipe fitting thread processing device for improving sealing performance includes a processing platform 1, such as... Figure 1 , Figure 2 , Figure 3 As shown, a lifting gantry frame 2 is fixedly installed on the top of the processing platform 1. A rotating arm 3 is fixedly installed on the top of the lifting gantry frame 2. The rotating end of the rotating arm 3 faces downward and is fixedly installed with a gripper driver 4. A clamping end 5 is fixedly installed at the bottom of each of the two driving ends of the gripper driver 4. A clamping semi-circular jaw 6 is fixedly installed at the bottom of each clamping end 5. The two clamping semi-circular jaws 6 are symmetrically arranged. Arc-shaped baffles 7 are fixedly installed at both ends of the clamping semi-circular jaws 6. The pipe to be processed 8 is placed between the two clamping semi-circular jaws 6 and the four arc-shaped baffles 7.

[0035] More specifically, when the hydraulic pipe fitting thread processing equipment is in use, the pipe fitting 8 to be processed is first sent to the two clamping semi-circular claws 6 through a transfer mechanism such as a mechanical claw. The claw driver 4 drives the two claws to move closer to each other through the clamping end 5 and clamps and fixes the pipe fitting 8 to be processed.

[0036] The top of the processing platform 1 is equipped with a tapping mechanism for internal thread machining of the pipe fitting 8 to be processed, such as... Figure 1 , Figure 5As shown, specifically, the tapping mechanism includes a thread opening platform 9 fixedly installed on the top of the processing platform 1. A horizontally arranged first spiral driver 10 is fixedly installed on the top of the thread opening platform 9. A first assembly rod 11 is fixedly installed at the driving end of the first spiral driver 10. A machine tap 12 is fixedly installed at the end of the first assembly rod 11 facing the pipe 8 to be processed. A broaching relief groove 1201 is opened at the end of the machine tap 12 facing the pipe 8 to be processed.

[0037] More specifically, the first spiral driver 10 at one end of the pipe fitting 8 drives the machine tap 12 to approach the pipe fitting 8 through the first assembly rod 11 and perform a spiral motion, so that the machine tap 12 is spirally inserted into the interior of the pipe fitting 8 and forms an internal thread.

[0038] The top of the machining platform 1 is equipped with a keyway opening mechanism for keyway machining of the pipe fitting 8 to be machined, such as... Figure 1 , Figure 6 As shown, specifically, the keyway opening mechanism includes a rotary table 13 fixedly installed on the top of the machining platform 1. A linear module 14 is fixedly installed on the top of the drive end of the rotary table 13. An industrial dust collector 15 is fixedly installed on the top of the drive end of the linear module 14. A horizontally arranged eccentric wheel 16 and a limiting cylinder 17 are fixedly installed on the top of the industrial dust collector 15. A hinge link 18 is rotatably connected to the drive end of the eccentric wheel 16. A broaching slide 19 is rotatably installed at one end of the hinge link 18. The broaching slide 19 is slidably installed inside the limiting cylinder 17. A broaching cutter head 20 adapted to the broaching relief groove 1201 is fixedly installed at one end of the broaching slide 19.

[0039] More specifically, when the internal thread is opened, the machine tap 12 remains inside the pipe fitting 8 to be processed. At this time, the broaching clearance groove 1201 is properly aligned with the broaching head 20. The linear module 14 drives the industrial dust collector 15 to move to the position of the lifting gantry 2, causing the broaching head 20 to stop at the other end of the pipe fitting 8 to be processed. Then, the eccentric wheel 16 starts to operate, causing the broaching slide bar 19 to perform linear reciprocating motion under the limit of the limiting sleeve 17 and driven by the hinge connecting rod 18. This causes the broaching head 20 to continuously insert into the inside of the pipe fitting 8 to be processed. At this time, the broaching head 20 is avoided by the broaching clearance groove 1201, allowing the broaching head 20 to perform keyway broaching on the area of ​​the pipe fitting 8 where the internal thread has already been opened. As the linear module 14 continues to operate... The broaching head 20 continuously penetrates deeper into the interior of the pipe fitting 8 until the keyway machining is completed. The linear module 14 then resets, completing the continuous machining of the internal thread and keyway. Simultaneously, since the machine tap 12 remains inside the pipe fitting 8 and tightly engages with the newly opened internal thread, the pipe fitting 8 is stably limited during keyway machining due to the engagement and the blocking effect of the front and rear arc-shaped baffles 7, ensuring the accuracy of the keyway machining of the pipe fitting 8. Furthermore, since other internal thread areas of the pipe fitting 8 are blocked by the machine tap 12, the broaching head 20 only moves within the broaching relief groove 1201, thereby protecting the internal threads in other non-machined areas and avoiding accidental damage to the internal threads during keyway machining, thus ensuring the accuracy of the internal thread machining.

[0040] like Figure 6 , Figure 9 As shown, specifically, a support frame 28 is fixedly installed on one side of the top of the industrial dust collector 15, and a positioning strip box 29 is fixedly installed at one end of the support frame 28. The positioning strip box 29 is located below the broaching head 20 and is adapted to the broaching relief groove 1201. Multiple reinforcing frames 30 are fixedly installed inside the positioning strip box 29.

[0041] More specifically, by setting the positioning strip box 29, during the process of the linear module 14 driving the industrial dust collector 15 to move towards the pipe to be processed 8, the positioning strip box 29 will be inserted into the pipe to be processed 8 before the broaching head 20 and inserted into the broaching relief groove 1201, thereby playing an internal limiting role. Combined with the meshing action of the machine tap 12 and the internal thread and the blocking action of the arc baffle 7, the limiting effect of the pipe to be processed 8 is further improved.

[0042] like Figure 6 , Figure 9 As shown, specifically, a second suction pipe 31 is fixedly installed on the end of the positioning strip box 29 away from the pipe to be processed 8. A second suction end is provided on one side of the industrial dust collector 15. The other end of the second suction pipe 31 is connected to the second suction end. Suction holes 2901 are provided on the end of the positioning strip box 29 facing the pipe to be processed 8 and on the bottom side wall.

[0043] More specifically, by setting a second suction pipe 31, during the keyway machining process, the positioning strip box 29 is inserted into the broaching relief groove 1201 for coverage, so that the waste generated by broaching falls into the interior of the positioning strip box 29 for collection, improving the chip removal capacity during keyway machining. The industrial dust collector 15 sucks up the waste accumulated inside the positioning strip box 29 through the first suction end and the second suction pipe 31, so that the waste from internal thread machining and keyway machining is collected into the industrial dust collector 15 through the second suction pipe 31, greatly reducing the residue of waste inside the pipe 8 to be processed. The suction hole 2901 at one end of the positioning strip box 29 and inside can increase the suction area of ​​the positioning strip box 29 for waste, thereby improving the suction effect.

[0044] like Figure 7 , Figure 8 As shown, specifically, a horizontally arranged second spiral driver 21 is fixedly installed on the top of the industrial dust collector 15. The driving end of the second spiral driver 21 is away from the pipe to be processed 8 and a second assembly rod 22 is fixedly installed thereon. A dust collection pipe 23 is fixedly installed at one end of the second assembly rod 22. A miniature pressure sensor 24 is fixedly installed on the side wall of the dust collection pipe 23. A pressure measuring wheel frame 25 is fixedly installed on the sensing end of the miniature pressure sensor 24. An arc-shaped conical wheel 26 is rotatably installed on the pressure measuring wheel frame 25.

[0045] More specifically, by setting the arc-shaped conical wheel 26, after the industrial dust collector 15 is reset, the first spiral driver 10 drives the machine tap 12 to spiral out in the opposite direction. The rotary table 13 drives the linear module 14, the industrial dust collector 15, etc. to rotate, so that the second spiral driver 21 faces the pipe to be processed 8. Then the linear module 14 drives the industrial dust collector 15 to move towards the pipe to be processed 8 again, so that the dust collection pipe 23 and the arc-shaped conical wheel 26 stay at one end of the pipe to be processed 8. Then the second spiral driver 21 drives the second assembly rod 22 and the dust collection pipe 23 to make the same thread feed movement as the previous machine tap 12, so that the arc-shaped conical wheel 26 rolls along the previous internal thread and performs contact pressure measurement on the internal thread. When there is a defect in the internal thread, the arc-shaped conical wheel 26 will have an up-and-down fluctuation tendency, so that the pressure on the sensing end of the micro pressure sensor 24 changes, and is then converted into an electrical signal by the micro pressure sensor 24 to detect the defect location of the internal thread, so as to realize timely detection of internal thread processing.

[0046] like Figure 7 , Figure 8 As shown, specifically, a first suction pipe 27 is fixedly installed on the side wall of the second assembly rod 22. One end of the first suction pipe 27 is connected to the dust removal pipe 23. A first suction end is provided on one side of the industrial dust collector 15, and the other end of the first suction pipe 27 is connected to the first suction end.

[0047] More specifically, by setting the first suction pipe 27, when the arc-shaped conical wheel 26 makes a spiral motion, the first suction pipe 27 rotates together with the dust removal pipe 23 and wraps around the second assembly rod 22, maintaining communication with the dust removal pipe 23. Then, the industrial dust collector 15 sucks up the residual waste inside the pipe to be processed 8 through the second suction end, the first suction pipe 27 and the dust removal pipe 23, sucking the residual waste into the industrial dust collector 15, thereby improving the waste collection rate and further reducing the amount of waste remaining in the pipe to be processed 8.

[0048] like Figure 3 , Figure 4 As shown, specifically, multiple evenly distributed receiving grooves 601 are provided on the inner wall of the clamping semi-circular claw 6. A shifting wheel 32 is rotatably installed inside each receiving groove 601. A shifting motor assembly 33 is fixedly installed on one side of the clamping end 5. The driving end of the shifting motor assembly 33 is drivenly connected to the multiple shifting wheels 32. A pre-tightening rubber sleeve 34 is fixedly sleeved on each shifting wheel 32.

[0049] More specifically, by setting the shifting wheel 32, after the keyway of the pipe fitting 8 to be processed is opened, multiple clamping semi-circular claws 6 can be driven to rotate synchronously and in the same direction by the shifting motor groups 33 on both sides according to the processing requirements of the keyway. This causes the pipe fitting 8 to be processed to turn inside the clamping semi-circular claws 6. At the same time, the first spiral driver 10 drives the machine tap 12 to only perform circumferential motion without linear feed, so that the machine tap 12 always maintains alignment with the internal thread of the pipe fitting 8 to be processed, so as to process the keyway on the other side and meet different processing requirements. Meanwhile, the pre-tightening rubber sleeve 34 sleeved on the shifting wheel 32 can replace the shifting wheel 32 to contact the pipe fitting 8 to be processed, preventing damage to the outer wall of the pipe fitting 8 to be processed, while increasing the friction between the shifting wheel 32 and the pipe fitting 8 to be processed, ensuring that the shifting wheel 32 can stably drive the pipe fitting 8 to be processed to rotate.

[0050] In summary: Before processing: The pipe to be processed 8 is first sent to the two clamping semicircular jaws 6 through a mechanical gripper or other transfer mechanism. The gripper driver 4 drives the two jaws to move closer to each other through the clamping end 5 and clamps and fixes the pipe to be processed 8.

[0051] Threading: The first screw driver 10 drives the machine tap 12 to approach the pipe to be processed 8 through the first assembly rod 11 and performs a screw motion, so that the machine tap 12 is screwed into the inside of the pipe to be processed 8 and an internal thread is formed.

[0052] Keyway machining: The machine tap 12 stops inside the pipe 8 to be machined. At this time, the broaching clearance groove 1201 is properly aligned with the broaching head 20. The linear module 14 drives the industrial dust collector 15 to move to the position of the lifting gantry 2, causing the broaching head 20 to stop at the other end of the pipe 8 to be machined. Then, the eccentric wheel 16 starts to run, causing the broaching slide bar 19 to move linearly and reciprocally under the limit of the limiting sleeve 17 and driven by the hinge link 18. This causes the broaching head 20 to continuously insert into the inside of the pipe 8 to be machined. At this time, the broaching head 20 is avoided by the broaching clearance groove 1201, allowing the broaching head 20 to perform keyway broaching on the area of ​​the pipe 8 to be machined that has already been internally threaded. As the linear module 14 continues to move, the broaching head 20 continues to penetrate deeper into the inside of the pipe 8 to be machined until the keyway machining is completed, and the linear module 14 resets.

[0053] After processing: The first spiral driver 10 drives the machine tap 12 to exit in the reverse spiral direction. The rotary table 13 drives the linear module 14, industrial dust collector 15, etc. to rotate, so that the second spiral driver 21 faces the pipe to be processed 8. Then the linear module 14 drives the industrial dust collector 15 to move towards the pipe to be processed 8 again, so that the dust collector 23 and the arc-shaped conical wheel 26 stay at one end of the pipe to be processed 8. Then the second spiral driver 21 drives the second assembly rod 22 and the dust collector 23 to make the same thread feed movement as the previous machine tap 12, so that the arc-shaped conical wheel 26 rolls along the previous internal thread and performs contact pressure measurement on the internal thread. When there is a defect in the internal thread, the arc-shaped conical wheel 26 will have an up-and-down fluctuation tendency, which will cause the pressure on the sensing end of the miniature pressure sensor 24 to change, and then be converted into an electrical signal by the miniature pressure sensor 24 to detect the defect location of the internal thread.

[0054] In this embodiment, both the first helical actuator 10 and the second helical actuator 21 are composed of a linear motion actuator and a circular motion actuator. As a preferred embodiment, a combination of a hydraulic rod, a high-load rotary motor, and a gearbox can be used to enable the machine tap 12 and the dust removal pipe 23 to perform a helical feed motion similar to that of a drill bit under the drive of the drive ends of the first helical actuator 10 and the second helical actuator 21, respectively. The first helical actuator 10 and the second helical actuator 21 can be bolted together to be mounted on the drive ends of the first helical actuator 10 and the second helical actuator 21 for easy replacement.

[0055] In this embodiment, the rotary table 13 is driven by a servo motor and consists of a fixed base and a rotary drive disk as the drive end. The fixed base is fixedly mounted on the processing platform 1, and the drive disk is rotatably mounted inside the fixed base. It is driven by a servo motor, gearbox, or transmission mechanism to make the drive disk rotate inside the fixed base. The linear module 14 can be a common linear actuator in the prior art, such as a linear motor module. It drives the mover as the drive end to move linearly through the electromagnetic force of the motor stator. Alternatively, it can use a screw thread sleeve, belt and pulley, chain and sprocket, etc., to control the linear movement of the drive end through the threaded guidance or meshing action. In addition to electrical energy, components such as cylinders and hydraulic rods can also be used as power sources. The linear module 14 in this embodiment can adopt technical solutions including but not limited to the above, depending on the actual situation.

[0056] In this embodiment, the combination of eccentric wheel 16, hinge link 18, broaching slide 19, and broaching cutter head 20 can be replaced by any broaching or planing equipment in the prior art that meets the keyway processing requirements of the hydraulic pipe joint thread processing equipment.

[0057] In this embodiment, the arc-shaped conical wheel 26 can also be replaced with a suitable ball bearing according to the shape and size of the actual internal thread.

[0058] In this embodiment, multiple shifting wheels 32 located on the same clamping semicircular claw 6 are interconnected by a gear set. Each shifting wheel 32 is equipped with a transmission gear through its own rotating shaft. Any two adjacent receiving slots 601 are interconnected and rotatably mounted with a transition gear. Two adjacent transmission gears mesh with each other through the transition gear, so that each shifting wheel 32 can rotate synchronously in the same direction. The driving end of the shifting motor group 33 on the same side is connected to one of the transmission gears through a second gear set, thereby realizing the driving connection between the shifting motor group 33 and each clamping semicircular claw 6.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A hydraulic pipe joint threading apparatus for improved sealing, characterized by, The utility model provides a pipe machining device, including processing platform (1), the top of processing platform (1) is fixedly installed with lifting gantry (2), the top of lifting gantry (2) is fixedly installed with rotating arm (3), the rotating end of rotating arm (3) is downward and is fixedly installed with jaw drive (4), the bottom of two drive ends of jaw drive (4) is fixedly installed with clamping end (5), the bottom of clamping end (5) is fixedly installed with clamping semicircular claw (6), two clamping semicircular claw (6) are symmetrically arranged, the both ends of clamping semicircular claw (6) are fixedly installed with arc baffle (7), and the clamping semicircular claw (6) between two arc baffles (7) is placed with the pipe to be processed (8), the top of processing platform (1) is provided with the tapping mechanism for the internal thread machining of pipe to be processed (8) and the keyway opening mechanism for the keyway machining of pipe to be processed (8), and 8 are located between the tapping mechanism and the keyway opening mechanism, The tapping mechanism includes a thread opening table (9) fixedly installed on the top of the processing platform (1), a first screw drive (10) horizontally arranged is fixedly installed on the top of the thread opening table (9), a first assembly rod (11) is fixedly installed on the driving end of the first screw drive (10), a machine tap (12) is fixedly installed on one end of the first assembly rod (11) facing the pipe to be processed (8), and a broaching allowance slot (1201) is formed in one end of the machine tap (12) facing the pipe to be processed (8). The keyway opening mechanism includes a rotating table (13) fixedly installed on the top of the processing platform (1), a linear module (14) is fixedly installed on the top of the driving end of the rotating table (13), an industrial dust collector (15) is fixedly installed on the top of the driving end of the linear module (14), an eccentric wheel machine (16) and a limiting cylinder frame (17) are fixedly installed on the top of the industrial dust collector (15), a hinge connecting rod (18) is rotatably sleeved on the driving end of the eccentric wheel machine (16), a broaching slide rod (19) is rotatably installed on one end of the hinge connecting rod (18), the broaching slide rod (19) is slidably installed in the limiting cylinder frame (17), a broaching tool bit (20) matched with the broaching allowance slot (1201) is fixedly installed on one end of the broaching slide rod (19), a second screw drive (21) is horizontally arranged and fixedly installed on the top of the industrial dust collector (15), a second assembly rod (22) is fixedly installed on the driving end of the second screw drive (21) away from the pipe to be processed (8), a dust removal pipe (23) is fixedly installed on one end of the second assembly rod (22), a micro pressure sensor (24) is fixedly installed on the sidewall of the dust removal pipe (23), a pressure measuring wheel frame (25) is fixedly installed on the sensing end of the micro pressure sensor (24), and an arc conical gear (26) is rotatably installed on the pressure measuring wheel frame (25).

2. The hydraulic pipe joint threading apparatus for improved sealing according to claim 1, wherein The top side of the industrial dust collector (15) is fixedly provided with a supporting frame (28), one end of the supporting frame (28) is fixedly provided with a positioning strip-shaped box (29), the positioning strip-shaped box (29) is located below the broaching tool head (20) and is matched with the broaching allowance slot (1201), a plurality of reinforcing frames (30) are fixedly installed in the positioning strip-shaped box (29).

3. The hydraulic pipe joint threading apparatus for improved sealing according to claim 1, wherein A first dust suction pipe (27) is fixedly installed on the side wall of the second assembly rod (22), one end of the first dust suction pipe (27) is communicated with the dust removal pipe (23), one side of the industrial dust collector (15) is provided with a first dust suction end, and the other end of the first dust suction pipe (27) is communicated with the first dust suction end.

4. The hydraulic pipe joint threading apparatus for improved sealing according to claim 2, wherein A second dust suction pipe (31) is fixedly installed on the end of the positioning strip-shaped box (29) away from the pipe to be machined (8), one side of the industrial dust collector (15) is provided with a second dust suction end, and the other end of the second dust suction pipe (31) is communicated with the second dust suction end.

5. The hydraulic pipe joint threading apparatus for improved sealing according to claim 2, wherein The end of the positioning strip-shaped box (29) towards the pipe to be machined (8) and the bottom side wall are both provided with dust suction holes (2901).

6. The hydraulic pipe joint threading apparatus for improved sealing according to claim 1, wherein A plurality of uniformly distributed containing grooves (601) are formed in the inner wall of the clamping semicircular claw (6), a transposition wheel (32) is rotatably installed in each containing groove (601), a transposition motor set (33) is fixedly installed on one side of the clamping end (5), the driving end of the transposition motor set (33) is drivingly connected with a plurality of transposition wheels (32), and a pre-tightening rubber sleeve (34) is fixedly sleeved on each transposition wheel (32).

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