Threaded flange for petroleum equipment and automatic machining equipment of threaded flange

Abstract

The invention relates to the technical field of flange machining, and particularly discloses a threaded flange for petroleum equipment and automatic machining equipment thereof.The threaded flange comprises a flange body, the flange body comprises a flange plate, internal threads are formed in the inner circle wall face of the flange plate, and six arc grooves are formed in each of the top and the bottom of the flange plate; a first adjusting disc is arranged in the flange plate, a second adjusting disc is arranged in the flange plate, the first adjusting disc and the second adjusting disc are each provided with three bolt holes, inner threads are formed in the inner circle wall faces of the bolt holes, and the included angle between every two adjacent bolt holes is 45 degrees. By arranging the flange plate, the first adjusting plate and the second adjusting plate, when bolt holes in two pipelines are adjusted to be aligned one by one, the flange bodies on the two sides are locked and fixed through cooperation of bolts and nuts, when the flange bodies are in butt joint, fine adjustment can be conducted according to the position deviation of the bolt holes, butt joint operation is rapid and convenient, and the butt joint efficiency is improved. And the installation time is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of flange processing, in particular to a threaded flange for petroleum equipment and automatic processing equipment thereof. Background Art

[0002] Threaded flange refers to a flange that is connected to the pipeline by threads. Usually, low-pressure and small-diameter pipelines in petroleum equipment are connected by threaded flanges. There is no need for welding during installation, and it is easy to disassemble.

[0003] When threaded flanges are butt-jointed, there may be a problem of difficulty in aligning the bolt holes on the threaded flanges due to factors such as different thread screw-in depths. The cutting of the inner threads of the bolt holes on the threaded flanges needs to be completed using a tapping machine. When the tapping machine is tapping the bolt holes, it is necessary to manually clamp and fix the flanges with a clamp. When the flanges are fixed, manual adjustment is required to ensure that the bolt holes are accurately aligned, which is inconvenient to operate. At the same time, when the taps on the tapping machine are tapping multiple bolt holes in sequence, the positions of the threaded flanges and the bolt holes thereon may be offset due to the large vibrations generated during the tapping process or the failure to accurately position the threaded flanges in the initial state, thereby affecting the tapping accuracy of the bolt holes. At the same time, a lot of debris will be splashed during the tapping process, and some of the debris will adhere to the hole walls of the subsequent untapped bolt holes, thereby affecting the tapping effect of the subsequent bolt holes. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a threaded flange for petroleum equipment and automatic processing equipment thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A threaded flange for petroleum equipment comprises a flange body, wherein the flange body comprises a flange plate, the inner circular wall surface of the flange plate is provided with an internal thread, the top and the bottom of the flange plate are provided with six arc grooves, an adjusting plate 1 is provided inside the flange plate, an adjusting plate 2 is provided inside the flange plate, three bolt holes are provided on the adjusting plate 1 and the adjusting plate 2, the inner circular wall surfaces of the bolt holes are provided with internal threads, and the angle between every two adjacent bolt holes is 45°.

[0007] Preferably, each three arc grooves form a group, and the intervals between the three arc grooves in each group are equal. A protrusion is fixedly installed on the side wall surface where the adjustment disk one and the adjustment disk two are in contact, and a recess adapted to the protrusion is opened on the side wall surface where the adjustment disk two and the adjustment disk one are in contact.

[0008] An automatic processing device for threaded flanges used in oil equipment, including a frame, a chassis is fixedly installed on the frame, and a clamping auxiliary assembly mechanism including a movable disk, a connecting disk, inner support clamping blocks, and side clamping plates is arranged on the chassis. A lifting seat is movably installed on the frame, a tap is movably installed at the bottom of the lifting seat, and a hole position detection and positioning mechanism including an outer adjustment frame, a vertical cylinder, a limiting plate, and a pressure sensor is arranged on the lifting seat;

[0009] The movable disk is rotatably installed on the top of the chassis, the connecting disk is fixedly installed on the movable disk, an adjustment table is rotatably installed on the connecting disk, two side clamping plates are symmetrically and fixedly installed on the adjustment table, and four inner support clamping blocks are slidably installed on the connecting disk;

[0010] The outer adjustment frame is rotatably installed on the lifting seat, three vertical cylinders are movably installed on one side of the outer adjustment frame, four limiting plates are movably installed on the vertical cylinders, the pressure sensor is fixedly installed inside the vertical cylinder, an air pump is fixedly installed on the outer adjustment frame, and a hemispherical block is movably installed at the bottom of the vertical cylinder.

[0011] Preferably, the clamping auxiliary assembly mechanism further includes a synchronous shaft, the synchronous shaft is fixedly installed at the bottom of the inner support clamping block, a synchronous gear is rotatably installed at the bottom of the connecting disk, four synchronous grooves are formed on the synchronous gear, and the synchronous shaft is movably connected with the synchronous grooves.

[0012] Preferably, two slot clamping blocks are slidably installed on the connecting disk, and an anti-inversion component is arranged on the slot clamping blocks.

[0013] Preferably, the anti-inversion component includes a movable pressing plate, the movable pressing plate is slidably installed on the slot clamping block, a contact sensor is fixedly installed inside the slot clamping block, and a first spring is fixedly installed inside the slot clamping block. One end of the first spring is fixedly connected with the movable pressing plate.

[0014] Preferably, the hole position detection and positioning mechanism further includes a movable seat, the movable seat is rotatably installed on the lifting seat, the movable seat and the outer adjustment frame are fixed to each other through three round shafts, and three mounting seats are slidably installed between the outer adjustment frame and the movable seat. The included angle between every two mounting seats is 45°.

[0015] Preferably, the vertical cylinder is movably installed at the bottom of the mounting seat, the vertical cylinder is connected with the air outlet of the air pump through an air duct, and air holes are uniformly formed on the vertical cylinder.

[0016] Preferably, rollers are uniformly rotatably installed on the limiting plate. The hole position detection and positioning mechanism further includes a scissor frame. Four scissor frames are movably installed on the vertical cylinder. One end of the scissor frame is rotatably installed on the vertical cylinder. A driving block is slidably installed inside the vertical cylinder. The driving block is rotatably connected with one end of the scissor frame. Both ends of the scissor frame close to the limiting plate are movably connected with the limiting plate.

[0017] Preferably, the hole position detection and positioning mechanism further comprises a touch-pressure block, which is fixedly mounted on the hemispherical block. A second spring is fixedly mounted inside the vertical cylinder, and one end of the second spring is fixedly connected to the hemispherical block.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention is provided with a flange, an adjusting disk 1 and an adjusting disk 2. When two petroleum equipment are connected and installed with a low-pressure pipeline, the two pipelines are fixed to the corresponding flanges by threaded connection respectively. When the pipeline and the flange are threadedly connected and tightened, the fitting surfaces of the adjusting disk 1 and the adjusting disk 2 are guaranteed to be vertical to the pipeline as much as possible. The two fixed pipelines and the flange are connected and aligned. When aligning, the adjusting disk 1 and the adjusting disk 2 are rotated according to the position deviation of the bolt holes on the two pipelines. When the bolt holes on the two pipelines are adjusted to be aligned one by one, the flange bodies on both sides are locked and fixed by the cooperation of bolts and nuts. When the flange bodies are butt-jointed, fine-tuning can be performed according to the position deviation of the bolt holes. The butt-jointing operation is fast and convenient, and the installation time is reduced.

[0020] The present invention is provided with a hole position detection and positioning mechanism. Before the tapping process, the various components of the flange body are stably clamped and positioned by the clamping auxiliary assembly mechanism to ensure the stability of the components during the tapping process. At the same time, the hole position detection and positioning mechanism cooperates with the clamping auxiliary assembly mechanism to ensure that the flange, adjustment disk one and adjustment disk two before tapping are accurately positioned, and the position of the bolt holes is accurate. During the tapping process, the inside of multiple bolt holes is cleaned by the hole position detection and positioning mechanism to ensure that the inner walls of the bolt holes are not adhered to debris that affects the tapping effect. At the same time, the hole positions of the bolt holes can be detected and positioned to avoid hole position deviation of the bolt holes. After the tapping is completed, the debris inside the tapped bolt holes is cleaned by the hole position detection and positioning mechanism to improve the overall tapping effect.

[0021] The present invention is provided with a clamping auxiliary assembly mechanism. Before the bolt hole is tapped, the flange is placed on the connecting plate, and the flange is accurately placed by means of a slot clamp block in cooperation with an anti-inversion component. The inner support clamp block is driven to press against the inner wall of the flange through the cooperation of a synchronous shaft, a synchronous gear and a synchronous slot to fix the flange. Subsequently, the adjusting disk one and the adjusting disk two are manually assembled to the inside of the flange, and the adjusting disk one and the adjusting disk two are clamped in cooperation with the side clamp plate, and the positions of the adjusting disk one and the adjusting disk two are adjusted in cooperation with a hole position detection and positioning mechanism to ensure the accuracy of the initial position of the bolt hole and the subsequent tapping effect. At the same time, in the later tapping process, the flange, the adjusting disk one and the adjusting disk two are stably clamped through the cooperation of the inner support clamp block, the slot clamp block and the side clamp plate to ensure stability during the tapping process.

[0022] In the present invention, a hole position detection and positioning mechanism is provided. When the first adjusting disc and the second adjusting disc are manually assembled inside the flange, the hemispherical blocks on the three vertical cylinders are in contact with the top of the flange. During the contact process, whether the bolt holes are accurately aligned can be detected through the movement of the hemispherical blocks and the pressure value signals fed back by the pressure sensors to the control system. After the alignment is completed, the tap performs a tapping operation on the bolt holes. During the tapping process, whether the bolt holes at subsequent positions are accurate is detected through the cooperation of the hemispherical blocks and the pressure sensors. After the hole positions are detected to be accurate, the limiting plate is externally supported to fit against the inner wall of the bolt hole to ensure that the position of the bolt hole does not shift during the tapping process. At the same time, an air pump and a gas pipe are used to blow air into the bolt hole to prevent debris from splashing and adhering inside the bolt holes at subsequent positions, which may affect the subsequent tapping effect. When all the bolt holes have been tapped, by adjusting the rotation of the flange body in cooperation with the hole position detection of the hemispherical blocks and the pressure sensors, and at the same time, blowing air into the bolt holes through the air pump, the gas pipe, the vertical cylinders, and the air holes to clean the tapping debris inside the bolt holes, the overall tapping effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. 6 is a schematic structural diagram of a threaded flange for petroleum equipment proposed by the present invention;

[0024] Figure 2 FIG. 10 is a schematic diagram of the assembled state of the first adjusting disc and the second adjusting disc in a threaded flange for petroleum equipment proposed by the present invention;

[0025] Figure 3 FIG. 14 is a schematic diagram of the disassembled state of the first adjusting disc and the second adjusting disc in a threaded flange for petroleum equipment proposed by the present invention;

[0026] Figure 4 FIG. 18 is a schematic diagram of the positions of the arc grooves and bolt holes in a threaded flange for petroleum equipment proposed by the present invention;

[0027] Figure 5 FIG. 22 is a schematic diagram of the connection state between the flange body and an external pipeline in a threaded flange for petroleum equipment proposed by the present invention;

[0028] Figure 6 FIG. 26 is a schematic structural diagram of an automatic processing device for a threaded flange for petroleum equipment proposed by the present invention;

[0029] Figure 7 FIG. 30 is a schematic diagram of the state of an automatic processing device for a threaded flange for petroleum equipment proposed by the present invention during processing;

[0030] Figure 8 FIG. 34 is a schematic structural diagram of a clamping and auxiliary assembly mechanism in an automatic processing device for a threaded flange for petroleum equipment proposed by the present invention;

[0031] Figure 9Schematic diagram of the split structure of the clamping and auxiliary assembly mechanism in an automatic processing device for threaded flanges used in petroleum equipment proposed by the present invention;

[0032] Figure 10 Schematic diagram of the structure of the anti-inversion component in an automatic processing device for threaded flanges used in petroleum equipment proposed by the present invention;

[0033] Figure 11 Installation schematic diagram of the hole position detection and positioning mechanism in an automatic processing device for threaded flanges used in petroleum equipment proposed by the present invention;

[0034] Figure 12 Schematic diagram of the structure of the hole position detection and positioning mechanism in an automatic processing device for threaded flanges used in petroleum equipment proposed by the present invention.

[0035] In the figure: 1. Flange; 11. Arc groove; 2. Adjusting disk one; 3. Adjusting disk two; 4. Bolt hole; 5. Frame; 6. Chassis; 61. Movable disk; 62. Connecting disk; 621. Synchronous gear; 622. Synchronous shaft; 623. Synchronous groove; 63. Adjusting table; 64. Inner supporting clamp block; 65. Groove clamp block; 651. Movable pressure plate; 652. Spring one; 653. Contact sensor; 66. Side clamp plate; 7. Lifting seat; 71. Tap; 72. Outer adjusting frame; 721. Movable seat; 722. Mounting seat; 73. Vertical cylinder; 731. Air hole; 732. Limiting plate; 733. Scissor frame; 734. Driving block; 735. Hemispherical block; 736. Spring two; 737. Pressure sensor; 738. Touching pressure block; 74. Air pump; 741. Air duct. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0037] Refer to Figures 1-5, a threaded flange for petroleum equipment, a threaded flange for petroleum equipment, including a flange body. The flange body includes a flange plate 1. The inner wall surface of the flange plate 1 is provided with internal threads. When connecting with a pipeline, a pipeline with external threads on its surface is threadedly connected to the flange plate 1 with internal threads on its inner wall surface. Six arc grooves 11 are opened on both the top and bottom of the flange plate 1. The arc grooves 11 are arc-shaped grooves. Every three arc grooves 11 form a group, and the intervals between the three arc grooves 11 in each group are equal. An adjusting plate one 2 is arranged inside the flange plate 1. The cross-section of the adjusting plate one 2 is semi-circular. An adjusting plate two 3 is arranged inside the flange plate 1. The cross-section of the adjusting plate two 3 is semi-circular. Both the adjusting plate one 2 and the adjusting plate two 3 are in contact with the inner wall of the flange plate 1. A convex block is fixedly installed on the side wall surface of the adjusting plate one 2 that is in contact with the adjusting plate two 3. A notch adapted to the convex block is opened on the side wall surface of the adjusting plate two 3 that is in contact with the adjusting plate one 2. When the inner wall surfaces of the adjusting plate one 2 and the adjusting plate two 3 are in contact with the inner wall of the flange plate 1, the convex block on the adjusting plate one 2 can be inserted into the notch inside the adjusting plate two 3. Three bolt holes 4 are opened on both the adjusting plate one 2 and the adjusting plate two 3. The inner wall surface of the bolt holes 4 is provided with internal threads. The included angle between every two adjacent bolt holes 4 is 45°. The positions of the bolt holes 4 are opposite to the positions of the arc grooves 11. After tapping the bolt hole 4 in the middle position, a bolt is manually inserted into the bolt hole 4 from the sealing surface side of the flange plate 1 and threadedly connected and tightened with the bolt hole 4 to lock the corresponding adjusting plate one 2 and adjusting plate two 3 inside the flange plate 1. By providing the flange plate 1, the adjusting plate one 2, and the adjusting plate two 3, when connecting and installing two low-pressure pipelines for petroleum equipment, the two pipelines are respectively fixed to the corresponding flange plates 1 by threaded connection. When threading and tightening the pipeline and the flange plate 1, try to ensure that the joint surface of the adjusting plate one 2 and the adjusting plate two 3 is perpendicular to the pipeline. After fixing, the two pipelines and the flange plates 1 are connected and aligned. During alignment, according to the position deviation of the bolt holes 4 on the two pipelines, the adjusting plate one 2 and the adjusting plate two 3 are rotated. When the bolt holes 4 on the two pipelines are aligned one by one, the two flange bodies on both sides are locked and fixed through the cooperation of bolts and nuts. When the flange bodies are docked, fine adjustment can be made according to the position deviation of the bolt holes 4. The docking operation is fast and convenient, reducing the installation time.

[0038] Refer to Figures 6-12, an automatic processing equipment for threaded flanges used in oil equipment, including a frame 5. A chassis 6 is fixedly installed on the frame 5. A clamping and auxiliary assembly mechanism is arranged on the chassis 6. When tapping the flange body to cut internal threads, the clamping and auxiliary assembly mechanism can ensure the stable clamping of each component of the flange body and assist in completing the assembly of the flange body. At the same time, during the tapping process, it can ensure the alignment of the hole positions, guarantee the tapping accuracy, and improve the tapping effect. A lifting seat 7 is movably installed on the frame 5. The lifting seat 7 can perform vertical lifting movement on the lower side of the frame 5. A hydraulic telescopic rod is fixedly installed on the frame 5. The telescopic end of the hydraulic telescopic rod is fixedly connected to the lifting seat 7. The hydraulic telescopic rod is electrically connected to an external controller. A tap 71 is movably installed at the bottom of the lifting seat 7. The tap 71 can slide horizontally along the base of the lifting seat 7 for position adjustment. The tap 71 is slidably installed on the lower side of the lifting seat 7 through an electric slide rail. At the same time, the tap 71 can rotate on the lower side of the lifting seat 7. The tap 71 is driven to rotate by a motor. When performing tapping processing, the motor drives the tap 71 to rotate inside the bolt hole 4 to complete the cutting of the internal thread of the bolt hole 4. A hole position detection and positioning mechanism is arranged on the lifting seat 7. The hole position detection and positioning mechanism can assist in the assembly and processing of the flange body. At the same time, when the tap 71 taps the bolt hole 4, it can detect and position the position of the bolt hole 4, ensure that the position of the bolt hole 4 does not deviate, guarantee the tapping accuracy, and improve the tapping effect; by setting up a hole position detection and positioning mechanism, before the tapping processing, the clamping and auxiliary assembly mechanism stably clamps and positions each component of the flange body to ensure the stability of each component during the tapping process. At the same time, through the cooperation of the hole position detection and positioning mechanism and the clamping and auxiliary assembly mechanism, it is ensured that the positions of the flange plate 1, the first adjusting plate 2, and the second adjusting plate 3 before tapping are accurate, and the position of the bolt hole 4 is accurate. During the tapping process, the inside of multiple bolt holes 4 is cleaned by the hole position detection and positioning mechanism to ensure that the inner wall of the bolt hole 4 is not adhered with debris, which affects the tapping effect. At the same time, the hole position of the bolt hole 4 can be detected and positioned to avoid the deviation of the hole position of the bolt hole 4. After the tapping is completed, the debris inside the tapped bolt hole 4 is cleaned by the hole position detection and positioning mechanism to improve the overall tapping effect.

[0039] As an optimized technical solution for a threaded flange and its automatic processing equipment for petroleum equipment of the present invention, the clamping and auxiliary assembly mechanism includes a movable disk 61. The movable disk 61 is rotatably installed on the top of the chassis 6. The movable disk 61 is driven to rotate through the meshing of two gears. One of the gears is driven by a servo motor, and the servo motor is electrically connected to an external controller. The other gear is fixedly connected to the movable disk 61. A connecting disk 62 is fixedly installed on the movable disk 61. An adjusting table 63 is rotatably installed on the connecting disk 62. The adjusting table 63 is driven to rotate through the meshing of a toothed ring and a gear. The toothed ring is fixedly connected to the adjusting table 63, and the gear is rotatably installed on the connecting disk 62. The gear is driven by a servo motor, and the servo motor is electrically connected to an external controller. Two side clamping plates 66 are symmetrically and fixedly installed on the adjusting table 63. The side clamping plate 66 is composed of two arc-shaped blocks. The side clamping plate 66 is driven by an electric cylinder. The telescopic end of the electric cylinder is fixedly connected to the side clamping plate 66, and the electric cylinder is electrically connected to an external controller. Four inner supporting clamping blocks 64 are slidably installed on the connecting disk 62. A synchronous shaft 622 is fixedly installed at the bottom of the inner supporting clamping block 64. A synchronous gear 621 is rotatably installed at the bottom of the connecting disk 62. Four synchronous grooves 623 are formed on the synchronous gear 621. The synchronous shaft 622 is movably connected to the synchronous grooves 623. A gear is rotatably installed at the bottom of the connecting disk 62. The gear meshes with the synchronous gear 621. The connecting disk 62 is driven to rotate by a servo motor, and the servo motor is electrically connected to an external controller. The gear is driven to rotate by the servo motor to drive the synchronous gear 621 to rotate synchronously, so as to drive the synchronous shaft 622 to slide inside the synchronous grooves 623, so that the bolt holes 4 of the four connecting disks 62 move closer to the middle position or expand outward synchronously. Two slot clamping blocks 65 are slidably installed on the connecting disk 62. The slot clamping blocks 65 are driven by electric push rods, and the electric push rods are electrically connected to an external controller. An anti-inversion assembly is provided on the slot clamping blocks 65. The anti-inversion assembly can ensure the accuracy of the front and back sides when the flange 1 is placed, and avoid the flange 1 being placed upside down; by providing a clamping and auxiliary assembly mechanism, before tapping the bolt holes 4, the flange 1 is placed on the connecting disk 62. The slot clamping blocks 65 cooperate with the anti-inversion assembly to ensure the accurate placement position of the flange 1. The inner supporting clamping blocks 64 are driven by the cooperation of the synchronous gear 621, the synchronous shaft 622 and the synchronous grooves 623 to abut against the inner wall of the flange 1 to fix the flange 1. Subsequently, the adjusting disk one 2 and the adjusting disk two 3 are manually assembled into the flange 1. The side clamping plates 66 are used to clamp the adjusting disk one 2 and the adjusting disk two 3, and the position of the adjusting disk one 2 and the adjusting disk two 3 is adjusted in cooperation with the hole position detection and positioning mechanism to ensure the accurate initial position of the bolt holes 4 and ensure the subsequent tapping effect. At the same time, during the subsequent tapping process, the stable clamping of the flange 1, the adjusting disk one 2 and the adjusting disk two 3 is realized through the cooperation of the inner supporting clamping blocks 64, the slot clamping blocks 65 and the side clamping plates 66, ensuring the stability during the tapping process.

[0040] As an optimized technical solution for the threaded flange and its automatic processing equipment for petroleum equipment of the present invention, the anti-inversion component includes a movable pressing plate 651, which is slidably installed on the slot clamping block 65. A contact sensor 653 is fixedly installed inside the slot clamping block 65. The contact sensor 653 is electrically connected to an external controller. A first spring 652 is fixedly installed inside the slot clamping block 65. One end of the first spring 652 is fixedly connected to the movable pressing plate 651; by providing the anti-inversion component, when the flange 1 is placed on the connecting plate 62, the arc groove 11 at the middle position of the bottom of the flange 1 is clamped into the corresponding slot clamping block 65 to ensure the accurate placement position of the flange 1. When the flange 1 is placed without inversion (the placement position of the flange 1 is accurate, that is, the pipe connection surface of the flange 1 faces downward and the sealing surface faces upward), the contact sensor 653 does not feedback a contact signal to the control system. When the flange 1 is placed in an inverted manner, at this time the sealing surface of the flange 1 faces downward, and the movable pressing plate 651 is pushed downward by the flange 1 to contact the contact sensor 653. The control system receives the contact signal, which indicates that the flange 1 is placed in an inverted manner at this time. After manual inversion, the subsequent tapping operation is carried out to ensure the tapping effect.

[0041] As an optimized technical solution for the threaded flange and its automatic processing equipment for petroleum equipment of the present invention, the hole position detection and positioning mechanism includes an outer adjustment frame 72. The outer adjustment frame 72 is rotatably installed on the lifting seat 7. A movable seat 721 is rotatably installed on the lifting seat 7. The movable seat 721 and the outer adjustment frame 72 are fixed to each other by three round shafts. The outer adjustment frame 72 is driven to rotate by meshing with a gear through a gear ring. The gear is rotatably installed on the lifting seat 7. The gear is driven by a servo motor, and the servo motor is electrically connected to an external controller. The gear ring is fixedly connected to the outer adjustment frame 72. Three mounting seats 722 are slidably installed between the outer adjustment frame 72 and the movable seat 721. The mounting seats 722 are driven by electric cylinders. The telescopic end of the electric cylinder is fixedly connected to the mounting seat 722. The electric cylinders are electrically connected to an external controller. The included angle between every two mounting seats 722 is 45°. An air pump 74 is fixedly installed on the outer adjustment frame 72. The air pump 74 is electrically connected to an external controller. A vertical cylinder 73 is movably installed at the bottom of the mounting seat 722. The vertical cylinder 73 is driven by an electric cylinder. The electric cylinder is electrically connected to an external controller. The telescopic end of the electric cylinder is fixedly connected to the vertical cylinder 73. The vertical cylinder 73 can move up and down at the bottom of the mounting seat 722. The vertical cylinder 73 is of a hollow structure. The vertical cylinder 73 is connected to the air outlet of the air pump 74 through an air duct 741. The air duct 741 is an elastic tube. Air holes 731 are evenly formed on the vertical cylinder 73. Four limiting plates 732 are movably installed on the vertical cylinder 73. Rollers are evenly rotatably installed on the limiting plates 732. Four scissor frames 733 are movably installed on the vertical cylinder 73. One end of the scissor frame 733 is rotatably installed on the vertical cylinder 73. A driving block 734 is slidably installed inside the vertical cylinder 73. The driving block 734 is driven by an electric push rod. The electric push rod is electrically connected to an external controller. The driving block 734 can slide up and down inside the vertical cylinder 73. The driving block 734 is rotatably connected to one end of the scissor frame 733. Both ends of the scissor frame 733 close to the limiting plate 732 are movably connected to the limiting plate 732. A hemispherical block 735 is movably installed at the bottom of the vertical cylinder 73. The hemispherical block 735 is of a hemispherical structure. A touch pressure block 738 is fixedly installed on the hemispherical block 735. A second spring 736 is fixedly installed inside the vertical cylinder 73. One end of the second spring 736 is fixedly connected to the hemispherical block 735. A pressure sensor 737 is fixedly installed inside the vertical cylinder 73. The pressure sensor 737 is electrically connected to an external controller;By providing a hole position detection and positioning mechanism, when the adjusting disk 1 and the adjusting disk 2 are manually assembled into the flange 1, the hemispherical blocks 735 on the three vertical cylinders 73 are in contact with the top of the flange 1. During the contact process, the movement of the hemispherical blocks 735 and the pressure value signal fed back by the pressure sensors 737 to the control system can detect whether the bolt holes 4 are accurately aligned. After the alignment is completed, the tap 71 performs tapping operations on the bolt holes 4. During the tapping process, the hemispherical blocks 735 cooperate with the pressure sensors 737 to detect whether the bolt holes 4 at subsequent positions are accurate. After detecting that the hole positions are accurate, the limiting plate 732 is externally supported to fit against the inner wall of the bolt hole 4 to ensure that the position of the bolt hole 4 does not shift during the tapping process. At the same time, the air pump 74 and the air duct 741 are used to blow air into the bolt hole 4 to prevent debris from splashing and adhering to the inner part of the bolt hole 4 at subsequent positions, which may affect the subsequent tapping effect. When all the bolt holes 4 have been tapped, by adjusting the rotation of the flange body, detecting the hole positions by the hemispherical blocks 735 and the pressure sensors 737, and at the same time, blowing air into the bolt hole 4 through the air pump 74, the air duct 741, the vertical cylinder 73, and the air holes 731 to clean the tapping debris inside the bolt hole 4, the overall tapping effect is improved.

[0042] When the present invention is in use, the flange 1 with the internally threaded cut is placed on the top of the connecting disk 62. When placing it, ensure that the pipe connection surface on the flange 1 faces downward and the sealing surface faces upward. At the same time, ensure that the two arc grooves 11 on the flange 1 located on the central axis are aligned with the groove clamping blocks 65. When the flange 1 is placed, the movable pressing plate 651 contacts the bottom of the flange 1 and slides downward. Since the pipe connection surface on the flange 1 is convex outward, if the flange 1 is placed correctly (i.e., the pipe connection surface on the flange 1 faces downward and the sealing surface faces upward, with the sealing surface defined as the front and the pipe connection surface as the back), when the movable pressing plate 651 contacts the pipe connection surface at the bottom of the flange 1, the movable pressing plate 651 slides downward but does not contact the contact sensor 653, and the contact sensor 653 does not feed back a contact signal to the control system. If the flange 1 is placed upside down (i.e., the sealing surface on the flange 1 faces downward and the pipe connection surface faces upward), when the movable pressing plate 651 contacts the sealing surface at the bottom of the flange 1, the movable pressing plate 651 is pressed downward and contacts the contact sensor 653 and feeds back a contact signal to the control system. The control system receives the feedback signal, and the operator reverses the front and back of the flange 1.

[0043] Control the servo motor to drive the gear to rotate. The gear meshes with the synchronous gear 621 and drives the synchronous gear 621 to rotate. When the synchronous gear 621 rotates, it drives the inner support clamp block 64 to expand outward through the synchronous shaft 622 and the synchronous groove 623 and contact the inner wall of the flange 1 to clamp the flange 1.

[0044] After the flange 1 is clamped and fixed, the operator manually assembles the first adjusting disc 2 and the second adjusting disc 3 into the inside of the flange 1 in place. After being placed in place, control the electric cylinder to drive the side clamping plate 66 to move towards the first adjusting disc 2 and the second adjusting disc 3 to clamp the first adjusting disc 2 and the second adjusting disc 3. After clamping, control the hydraulic telescopic rod to drive the lifting seat 7 to descend to drive the vertical cylinder 73 to descend. Subsequently, control the electric cylinder to drive the vertical cylinder 73 to descend in place. At this time, the hemispherical blocks 735 on the vertical cylinder 73 are opposite to a group of three arc grooves 11 on one side of the sealing surface of the flange 1. The hemispherical blocks 735 contact the top of the first adjusting disc 2 or the second adjusting disc 3 and are pushed towards the inside of the vertical cylinder 73. The contact block 738 contacts and squeezes the pressure sensor 737 and feeds back a pressure value signal to the control system. Subsequently, control the servo motor to drive the gear to rotate and mesh with the gear ring to drive the adjusting table 63 and the two side clamping plates 66 on it to rotate. When the side clamping plates 66 rotate, they drive the first adjusting disc 2 and the second adjusting disc 3 to rotate and adjust inside the flange 1. During the rotation, if the positions of the three hemispherical blocks 735 are opposite to the positions of the three bolt holes 4 on the first adjusting disc 2 or the second adjusting disc 3, at this time, the hemispherical blocks 735 are no longer squeezed by the first adjusting disc 2 or the second adjusting disc 3, and the outer adjusting frame 72 of the frame 5 pops downward under the action of the second spring 736. The contact block 738 no longer squeezes the pressure sensor 737, and the pressure value fed back by the pressure sensor 737 to the control system is 0. At this time, it means that the positions of the bolt holes 4 on the first adjusting disc 2 and the second adjusting disc 3 are aligned with the positions of the arc grooves 11 on the flange 1, and the assembly of the first adjusting disc 2 and the second adjusting disc 3 is completed;

[0045] After the first adjusting disc 2 and the second adjusting disc 3 are assembled, control the servo motor to drive the gear to rotate and mesh with the gear ring to drive the outer adjusting frame 72 to rotate until the angle between the vertical cylinder 73 close to the tap 71 side and the tap 71 is 45°. At the same time, control the servo motor to drive the gear to rotate to drive the movable disc 61 to drive the flange 1, the first adjusting disc 2 and the second adjusting disc 3 as a whole to rotate and adjust until the tap 71 is opposite to the bolt hole 4 on the upper side of the first adjusting disc 2 or the second adjusting disc 3 (hereinafter, the bolt hole 4 at this position is defined as the first bolt hole 4). Control the electric cylinder to drive the three vertical cylinders 73 to descend. When the vertical cylinders 73 descend in place, the pressure value is detected by the cooperation of the hemispherical block 735 and the pressure sensor 737 to detect the hole position of the bolt hole 4. Control the electric cylinder above the hemispherical block 735 where the bolt hole 4 hole position is not detected to start and drive the corresponding vertical cylinder 73 to move upward. Subsequently, control the lifting seat 7 to descend and control the motor to start to drive the tap 71 to rotate to perform tapping on the first bolt hole 4. At the same time, control the electric cylinder above the hemispherical block 735 where the bolt hole 4 hole position is detected to drive the corresponding vertical cylinder 73 to descend into the second bolt hole 4. At the same time, control the electric push rod to drive the driving block 734 to descend and drive the four limiting plates 732 to open outward until the rollers on them contact the inner wall of the bolt hole 4. At the same time, control the air pump 74 to start to blow air into the bolt hole 4 through the air duct 741 and the air hole 731. When the tapping of the first bolt hole 4 is completed, the lifting seat 7 rises, control the limiting plate 732 to move back to its original position, and control the electric cylinder to drive the vertical cylinder 73 to move back to its original position. Control the servo motor to drive the gear to rotate and mesh, and drive the flange 1, the first adjusting disc 2 and the second adjusting disc 3 as a whole to rotate clockwise by 45° to switch to the position where the tap 71 is opposite to the second bolt hole 4;

[0046] Subsequently, control the electric cylinder to drive the three vertical cylinders 73 to descend. According to the pressure value feedback by the pressure sensor 737, control the electric cylinder above the hemispherical block 735 where the bolt hole 4 hole position is not detected to start and drive the corresponding vertical cylinder 73 to move upward. Control the lifting seat 7 to descend and rotate to perform tapping on the second bolt hole 4. At the same time, control the vertical cylinder 73 where the bolt hole 4 hole position is detected to descend into the subsequent untapped bolt hole 4. At the same time, control the four limiting plates 732 to open outward until the rollers on them contact the inner wall of the bolt hole 4. At the same time, control the air pump 74 to start to blow air into the bolt hole 4 through the air duct 741 and the air hole 731. When the tapping of the second bolt hole 4 is completed, the lifting seat 7 rises, control the limiting plate 732 to move back to its original position, and control the electric cylinder to drive the vertical cylinder 73 to move back to its original position. Control the servo motor to drive the gear to rotate and mesh, and drive the flange 1, the first adjusting disc 2 and the second adjusting disc 3 as a whole to rotate by 45°. After operating according to this step three times, the tapping operation of a group of three bolt holes 4 on the first adjusting disc 2 or the second adjusting disc 3 is completed. Subsequently, control the movable disc 61 to rotate clockwise by 90° as a whole to switch to the tapping operation of the next group of three bolt holes 4;

[0047] After the tapping operation of all the bolt holes 4 is completed, control the lifting seat 7 to rise, and then control the electric cylinder to drive the three vertical cylinders 73 to descend for hole position detection. For the vertical cylinder 73 at the hole position of the bolt hole 4 being detected, continue to control the vertical cylinder 73 to descend into the bolt hole 4. Start the air pump 74 for blowing operation. While blowing, control the movable disk 61 to rotate, rotating 45° each time, to complete the cleaning of the internal debris of all the bolt holes 4;

[0048] After the tapping and cleaning are completed, manually screw the bolt into the bolt hole 4 at the middle position among the three bolt holes 4 in each group and then tighten it. After tightening, remove the first processed flange body and proceed with the processing of the second flange body.

[0049] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

[0050] The above-mentioned are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A threaded flange for petroleum equipment, comprising a flange body, characterized in that: The flange body comprises a flange plate (1), the inner circular wall surface of the flange plate (1) is provided with an internal thread, the top and bottom of the flange plate (1) are provided with six arc grooves (11), an adjusting plate 1 (2) is provided inside the flange plate (1), an adjusting plate 2 (3) is provided inside the flange plate (1), three bolt holes (4) are provided on the adjusting plate 1 (2) and the adjusting plate 2 (3), the inner circular wall surface of the bolt hole (4) is provided with an internal thread, and the angle between every two adjacent bolt holes (4) is 45°.

2. A threaded flange for petroleum equipment according to claim 1, characterized in that: Every three arc grooves (11) form a group, and the intervals between the three arc grooves (11) in each group are equal. A convex block is fixedly installed on the side wall surface where the adjusting disk 1 (2) and the adjusting disk 2 (3) are in contact with each other, and a concave groove matching the convex block is provided on the side wall surface where the adjusting disk 2 (3) and the adjusting disk 1 (2) are in contact with each other.

3. An automatic processing device for threaded flanges for petroleum equipment according to claim 2, comprising a frame (5), characterized in that: The frame (5) is fixedly mounted with a chassis (6), the chassis (6) is provided with a clamping auxiliary assembly mechanism including a movable plate (61), a connecting plate (62), an inner support clamping block (64) and a side clamping plate (66), the frame (5) is movably mounted with a lifting seat (7), a tap (71) is movably mounted at the bottom of the lifting seat (7), and the lifting seat (7) is provided with a hole position detection and positioning mechanism including an external adjustment frame (72), a vertical cylinder (73), a limit plate (732) and a pressure sensor (737); The movable disk (61) is rotatably mounted on the top of the chassis (6), the connecting disk (62) is fixedly mounted on the movable disk (61), an adjusting platform (63) is rotatably mounted on the connecting disk (62), two side clamping plates (66) are symmetrically fixedly mounted on the adjusting platform (63), and four inner support clamping blocks (64) are slidably mounted on the connecting disk (62); The outer adjustment frame (72) is rotatably mounted on the lifting seat (7), three vertical cylinders (73) are movably mounted on one side of the outer adjustment frame (72), four limit plates (732) are movably mounted on the vertical cylinder (73), a pressure sensor (737) is fixedly mounted inside the vertical cylinder (73), an air pump (74) is fixedly mounted on the outer adjustment frame (72), and a hemispherical block (735) is movably mounted on the bottom of the vertical cylinder (73).

4. The automatic processing equipment for threaded flanges for petroleum equipment according to claim 3 is characterized by: The clamping auxiliary assembly mechanism also includes a synchronization shaft (622), which is fixedly mounted on the bottom of the inner support clamping block (64). A synchronization gear (621) is rotatably mounted on the bottom of the connecting plate (62), and four synchronization grooves (623) are formed on the synchronization gear (621). The synchronization shaft (622) is movably connected to the synchronization grooves (623).

5. The automatic processing equipment for threaded flanges for petroleum equipment according to claim 4, characterized in that: Two slot clamping blocks (65) are slidably mounted on the connection plate (62), and an anti-inversion component is arranged on the slot clamping blocks (65).

6. The automatic processing equipment for threaded flanges for petroleum equipment according to claim 5, characterized in that: The anti-inversion assembly comprises a movable pressing plate (651), the movable pressing plate (651) is slidably mounted on a slot clamp (65), a contact sensor (653) is fixedly mounted inside the slot clamp (65), a spring 1 (652) is fixedly mounted inside the slot clamp (65), and one end of the spring 1 (652) is fixedly connected to the movable pressing plate (651).

7. The automatic processing equipment for threaded flanges for petroleum equipment according to claim 3, characterized in that: The hole position detection and positioning mechanism also includes a movable seat (721), which is rotatably mounted on the lifting seat (7), the movable seat (721) and the outer adjustment frame (72) are fixed to each other via three circular shafts, and three mounting seats (722) are slidably mounted between the outer adjustment frame (72) and the movable seat (721), and the angle between every two mounting seats (722) is 45°.

8. The automatic processing equipment for threaded flanges for petroleum equipment according to claim 7, characterized in that: The vertical cylinder (73) is movably mounted on the bottom of the mounting seat (722). The vertical cylinder (73) is connected to the air outlet of the air pump (74) through the air guide pipe (741). Air holes (731) are evenly opened on the vertical cylinder (73).

9. The automatic processing equipment for threaded flanges for petroleum equipment according to claim 3, characterized in that: The limit plate (732) is evenly rotatably mounted with rollers, and the hole position detection and positioning mechanism further comprises a scissor frame (733), wherein four scissor frames (733) are movably mounted on the vertical cylinder (73), one end of the scissor frame (733) is rotatably mounted on the vertical cylinder (73), a driving block (734) is slidably mounted inside the vertical cylinder (73), the driving block (734) is rotatably connected to one end of the scissor frame (733), and both ends of the scissor frame (733) close to the limit plate (732) are movably connected to the limit plate (732).

10. The automatic processing equipment for threaded flanges for petroleum equipment according to claim 3, characterized in that: The hole position detection and positioning mechanism also includes a touch-pressure block (738), which is fixedly mounted on the hemispherical block (735). A second spring (736) is fixedly mounted inside the vertical cylinder (73), and one end of the second spring (736) is fixedly connected to the hemispherical block (735).

Images