A threaded flange for petroleum equipment and an automatic machining device thereof

Abstract

The present application relates to the technical fields of flange processing, and discloses a threaded flange for petroleum equipment and an automatic processing equipment thereof, which comprises a flange body, the flange body comprises a flange disc, an inner circular wall surface of the flange disc is provided with internal threads, the top and bottom of the flange disc are provided with six arc grooves, the inside of the flange disc is provided with an adjusting disc one, the inside of the flange disc is provided with an adjusting disc two, three bolt holes are formed in the adjusting disc one and the adjusting disc two, the inner circular wall surface of the bolt holes is provided with internal threads, and the included angle between every two adjacent bolt holes is 45°. The flange disc, the adjusting disc one and the adjusting disc two are arranged, when the bolt holes on the two pipelines are aligned, the flange bodies on both sides are locked and fixed through the cooperation of the bolts and the nuts, when the flange bodies are connected, the position deviation of the bolt holes can be adjusted, the connection operation is fast and convenient, and the installation time is reduced.

Description

Technical Field

[0001] This invention relates to the field of flange processing technology, and in particular to a threaded flange for petroleum equipment and its automatic processing equipment. Background Technology

[0002] A threaded flange is a type of flange that is connected to a pipe using threads. Typically, low-pressure, small-diameter pipes in oil equipment are connected using threaded flanges, which eliminate the need for welding during installation and are easy to disassemble.

[0003] When mating threaded flanges, the alignment of bolt holes on the flanges may be difficult due to factors such as different thread depths. The internal threads of the bolt holes on the flanges need to be cut using a tapping machine. When tapping the bolt holes, the flanges need to be manually clamped and fixed using a fixture. The flanges also require manual adjustment to ensure accurate bolt hole alignment, making the operation inconvenient. Furthermore, when the tap on the tapping machine sequentially taps multiple bolt holes, significant vibrations during the tapping process or inaccurate initial positioning of the threaded flange may cause displacement of the threaded flange and its bolt holes, affecting the tapping accuracy. Additionally, a large amount of debris is ejected during tapping, some of which adheres to the walls of subsequent un-taped bolt holes, thus affecting the tapping effect of those holes. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a threaded flange for petroleum equipment and its automatic processing equipment.

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

[0006] A threaded flange for oil equipment includes a flange body, the flange body including a flange plate, the inner circular wall of the flange plate having internal threads, the top and bottom of the flange plate having six arc grooves, the flange plate having an adjusting plate one inside, the flange plate having an adjusting plate two inside, the adjusting plate one and the adjusting plate two each having three bolt holes, the inner circular wall of the bolt holes having internal threads, and the included angle between any two adjacent bolt holes being 45°.

[0007] Preferably, every three of the arc grooves form a group, and the interval between the three arc grooves in each group is equal. A protrusion is fixedly installed on the side wall where the first adjusting plate and the second adjusting plate are in contact, and a notch adapted to the protrusion is opened on the side wall where the second adjusting plate and the first adjusting plate are in contact.

[0008] An automatic processing equipment for threaded flanges for petroleum equipment includes a frame, a chassis fixedly mounted on the frame, a clamping auxiliary assembly mechanism including a movable plate, a connecting plate, an inner support clamping block and a side clamping plate on the chassis, a lifting seat movably mounted on the frame, a tap movably mounted at the bottom of the lifting seat, and a hole position detection and positioning mechanism including an outer adjustment frame, a vertical cylinder, a limit plate and a pressure sensor on the lifting seat.

[0009] The movable plate is rotatably mounted on the top of the chassis, the connecting plate is fixedly mounted on the movable plate, an adjustment platform is rotatably mounted on the connecting plate, two side clamps are symmetrically fixedly mounted on the adjustment platform, and four inner support clamps are slidably mounted on the connecting plate.

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

[0011] Preferably, the clamping auxiliary assembly mechanism further includes a synchronous shaft, which is fixedly installed at the bottom of the inner support clamping block. A synchronous gear is rotatably installed at the bottom of the connecting plate, and four synchronous slots are provided on the synchronous gear. The synchronous shaft is movably connected to the synchronous slots.

[0012] Preferably, two slot clamps are slidably installed on the connecting plate, and the slot clamps are provided with anti-inversion components.

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

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

[0015] Preferably, the vertical cylinder is movably installed at the bottom of the mounting base, and the vertical cylinder is connected to the air outlet on the air pump through an air guide pipe. Air holes are evenly distributed on the vertical cylinder.

[0016] Preferably, rollers are evenly rotatably mounted on the limiting plate, and the hole position detection and positioning mechanism also includes scissor arms. Four scissor arms are movably mounted on the vertical cylinder, one end of the scissor arms is rotatably mounted on the vertical cylinder, and a driving block is slidably mounted inside the vertical cylinder. The driving block is rotatably connected to one end of the scissor arms, and both ends of the scissor arms near the limiting plate are movably connected to the limiting plate.

[0017] Preferably, the hole position detection and positioning mechanism further includes a pressure block, which is fixedly installed on the hemispherical block. A second spring is fixedly installed 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 beneficial effects of the present invention are:

[0019] This invention, by incorporating flanges, adjusting plate one, and adjusting plate two, allows for the connection and installation of two low-pressure pipelines for oil equipment. The two pipelines are fixed to their corresponding flanges via threaded connections. When tightening the threads, the contact surfaces of adjusting plate one and adjusting plate two are kept perpendicular to the pipelines. After fixing, the two pipelines and flanges are aligned. During alignment, adjusting plate one and adjusting plate two are rotated based on the positional deviation of the bolt holes on the two pipelines. Once the bolt holes on the two pipelines are aligned, the flange bodies on both sides are locked in place using bolts and nuts. When the flange bodies are joined, fine adjustments can be made based on the positional deviation of the bolt holes. The joining operation is quick and convenient, reducing installation time.

[0020] This invention incorporates a hole position detection and positioning mechanism. Before tapping, a clamping auxiliary assembly mechanism stably clamps and positions each component of the flange body, ensuring stability during the tapping process. Simultaneously, the hole position detection and positioning mechanism, in conjunction with the clamping auxiliary assembly mechanism, ensures accurate positioning of the flange, adjusting plate one, and adjusting plate two, as well as the bolt holes, before tapping. During tapping, the hole position detection and positioning mechanism cleans the interior of multiple bolt holes, ensuring no debris adheres to the inner walls and affects the tapping effect. It also detects and positions the bolt holes, preventing misalignment. After tapping, the hole position detection and positioning mechanism cleans away any remaining debris from the tapped bolt holes, improving the overall tapping effect.

[0021] This invention features a clamping auxiliary assembly mechanism. Before tapping the bolt holes, the flange is placed on the connecting plate. The groove clamping block, in conjunction with an anti-tipping component, ensures the flange's accurate placement. A synchronous shaft, synchronous gear, and synchronous groove work together to drive the inner support clamping block against the inner wall of the flange, thus securing it. Subsequently, adjusting plates one and two are manually assembled into the flange. Side clamping plates hold adjusting plates one and two in place, and a hole position detection and positioning mechanism adjusts their positions to ensure accurate initial bolt hole positions and optimal tapping results. Furthermore, during the subsequent tapping process, the inner support clamping block, groove clamping block, and side clamping plate work together to stably clamp the flange, adjusting plates one and two, ensuring stability during the tapping process.

[0022] This invention incorporates a hole position detection and positioning mechanism. When adjusting disc one and adjusting disc two are manually assembled into the flange, hemispherical blocks on three vertical cylinders press against the top of the flange. During this pressing process, the movement of the hemispherical blocks and the pressure signal fed back to the control system by the pressure sensor detect whether the bolt holes are accurately aligned. After alignment, a tap is used to tap the bolt holes. During tapping, the hemispherical blocks, in conjunction with the pressure sensor, detect the accuracy of subsequent bolt holes. Once the hole position is confirmed to be accurate, a limiting plate is used to support the bolt holes and ensure that the bolt hole position does not shift during tapping. Simultaneously, an air pump and air pipe blow air into the bolt holes to prevent debris from splashing and adhering to the interior of subsequent bolt holes, affecting the tapping effect. After all bolt holes have been tapped, the flange body is rotated and adjusted, and the hemispherical blocks and pressure sensor detect the hole position. Air is then blown into the bolt holes using the air pump, air pipe, vertical cylinders, and air holes to clean the tapping debris inside the bolt holes, improving the overall tapping effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a threaded flange for petroleum equipment proposed in this invention;

[0024] Figure 2 This is a schematic diagram showing the assembly state of adjusting disc one and adjusting disc two in a threaded flange for petroleum equipment proposed in this invention.

[0025] Figure 3 This is a schematic diagram showing the disassembled state of adjusting disc one and adjusting disc two in a threaded flange for petroleum equipment proposed in this invention.

[0026] Figure 4 This is a schematic diagram showing the positions of the arc groove and bolt holes in a threaded flange for petroleum equipment according to the present invention;

[0027] Figure 5 This is a schematic diagram showing the connection state between the flange body and the external pipeline in a threaded flange for petroleum equipment proposed in this invention.

[0028] Figure 6 This is a schematic diagram of the structure of an automatic processing equipment for threaded flanges for petroleum equipment proposed in this invention;

[0029] Figure 7 This is a schematic diagram showing the state of an automatic processing device for threaded flanges used in petroleum equipment during processing, as proposed in this invention.

[0030] Figure 8 This is a schematic diagram of the clamping auxiliary assembly mechanism in an automatic processing equipment for threaded flanges for petroleum equipment proposed in this invention;

[0031] Figure 9This is a schematic diagram of the disassembled structure of the clamping auxiliary assembly mechanism in an automatic processing equipment for threaded flanges for petroleum equipment proposed in this invention;

[0032] Figure 10 This is a schematic diagram of the anti-inversion component in an automatic processing device for threaded flanges for petroleum equipment proposed in this invention;

[0033] Figure 11 This is a schematic diagram of the installation of the hole position detection and positioning mechanism in an automatic processing equipment for threaded flanges for petroleum equipment proposed in this invention.

[0034] Figure 12 This is a schematic diagram of the hole position detection and positioning mechanism in an automatic processing equipment for threaded flanges for petroleum equipment proposed in this invention.

[0035] In the diagram: 1. Flange; 11. Arc groove; 2. Adjusting plate one; 3. Adjusting plate two; 4. Bolt hole; 5. Frame; 6. Chassis; 61. Movable plate; 62. Connecting plate; 621. Synchronous gear; 622. Synchronous shaft; 623. Synchronous groove; 63. Adjusting platform; 64. Inner support clamp; 65. Groove clamp; 651. Movable pressure plate; 652. Spring one; 653. Contact sensor; 66. Side clamp; 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 lift frame; 734. Drive block; 735. Hemispherical block; 736. Spring two; 737. Pressure sensor; 738. Contact block; 74. Air pump; 741. Air guide pipe. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Reference Figure 1-5A threaded flange for oil equipment includes a flange body, the flange body including a flange 1, the inner circular wall of the flange 1 having an internal thread. When connected to a pipeline, the pipeline with external threads on its surface is threaded to the flange 1 with internal threads on its inner circular wall. The flange 1 has six arc grooves 11 on its top and bottom, each arc groove 11 being an arc-shaped groove, with three arc grooves 11 forming a group, and the intervals between the three arc grooves 11 in each group being equal. An adjusting disc 2 is provided inside the flange 1, the adjusting disc 2 having a semi-circular cross-section. The flange 1 is equipped with an adjusting disc 2 (3), which has a semi-circular cross-section. Both adjusting discs 2 and 3 are fitted against the inner wall of flange 1. A protrusion is fixedly installed on the side wall of adjusting disc 2 that is fitted against adjusting disc 3. A recess is provided on the side wall of adjusting disc 2 that is fitted against adjusting disc 2 to match the protrusion. When the inner circular wall surfaces of adjusting discs 2 and 3 are fitted against the inner wall of flange 1, the protrusion on adjusting disc 2 can be inserted into the recess on adjusting disc 2. Both adjusting discs 2 and 3 have three bolt holes 4, and the inner circular wall surfaces of the bolt holes 4 have... The internal thread has an included angle of 45° between every two adjacent bolt holes 4. The position of the bolt hole 4 is opposite to the position of the arc groove 11. After tapping, the bolt hole 4 in the middle position is manually inserted from the sealing surface side of the flange 1 towards the inside of the bolt hole 4 and screwed into the bolt hole 4 to lock the corresponding adjusting disc 1 2 and adjusting disc 2 3 inside the flange 1. With the flange 1, adjusting disc 1 2 and adjusting disc 2 3 installed, when two low-pressure pipelines for oil equipment are connected and installed, the two pipelines are respectively fixed to the corresponding flange 1 by threaded connection. When tightening the threaded connection between the pipe and flange 1, ensure that the mating surfaces of adjusting disc 2 and adjusting disc 3 are perpendicular to the pipe. After fixing, connect and align the two pipes and flange 1. During alignment, rotate adjusting disc 2 and adjusting disc 3 according to the positional deviation of the bolt holes 4 on the two pipes. When the bolt holes 4 on the two pipes are aligned one by one, lock and fix the flange bodies on both sides with the cooperation of bolts and nuts. When the flange bodies are joined, fine adjustments can be made according to the positional deviation of the bolt holes 4. The joining operation is quick and convenient, reducing installation time.

[0038] Reference Figure 6-12An automatic processing device for threaded flanges used in petroleum equipment includes a frame 5, on which a base 6 is fixedly mounted. The base 6 is equipped with a clamping auxiliary assembly mechanism. When tapping the flange body to cut internal threads, the clamping auxiliary assembly mechanism ensures the stable clamping of each component of the flange body and assists in assembling the flange body. Simultaneously, it ensures the alignment of the holes during the tapping process, guaranteeing tapping accuracy and improving the tapping effect. A lifting seat 7 is movably mounted on the frame 5, allowing for vertical lifting and lowering from the underside 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 on the bottom of the lifting seat 7. The tap 71 can slide laterally on 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 via 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. During tapping, the motor drives the tap 71 to rotate inside the bolt hole 4 to complete the bolt hole. For the internal thread cutting of bolt hole 4, the lifting seat 7 is equipped with a hole position detection and positioning mechanism. This mechanism assists in the assembly and processing of the flange body. Simultaneously, when tap 71 taps the bolt hole 4, it detects and positions the bolt hole 4 to ensure its position does not shift, guaranteeing tapping accuracy and improving tapping effect. By incorporating the hole position detection and positioning mechanism, before tapping, the clamping auxiliary assembly mechanism stably clamps and positions each component of the flange body, ensuring stability during the tapping process. The position detection and positioning mechanism works in conjunction with the clamping and auxiliary assembly mechanism to ensure the accurate positioning of flange 1, adjusting plate 1 2, and adjusting plate 2 3 before tapping, as well as the accurate positioning of bolt holes 4. During the tapping process, the hole position detection and positioning mechanism cleans the inside of multiple bolt holes 4 to ensure that no debris adheres to the inner wall of the bolt holes 4, which would affect the tapping effect. At the same time, it can detect and position the bolt hole 4 to prevent the bolt hole 4 from shifting. After tapping is completed, the hole position detection and positioning mechanism cleans the debris inside the tapped bolt holes 4 to improve the overall tapping effect.

[0039] As an optimized technical solution for threaded flanges for petroleum equipment and their automatic processing equipment according to the present invention, the clamping auxiliary assembly mechanism includes a movable disk 61, which is rotatably mounted on the top of the chassis 6. The movable disk 61 is driven to rotate by two meshing gears, one of which is driven by a servo motor electrically connected to an external controller. The other gear is fixedly connected to the movable disk 61. A connecting disk 62 is fixedly mounted on the movable disk 61, and an adjusting platform 63 is rotatably mounted on the connecting disk 62. The adjusting platform 63 is driven to rotate by meshing a gear and a gear, wherein the gear is fixedly connected to the adjusting platform 63, and the gear is rotatably mounted on the connecting disk 62. The gear is driven by a servo motor electrically connected to an external controller. Two side clamps 66 are symmetrically fixedly installed on the adjusting platform 63. Each side clamp 66 is composed of two arc-shaped blocks. The side clamps 66 are driven by an electric cylinder, the extension end of which is fixedly connected to the side clamp 66. The electric cylinder is electrically connected to an external controller. Four inner support clamps 64 are slidably installed on the connecting plate 62. A synchronous shaft 622 is fixedly installed at the bottom of each inner support clamp 64. A synchronous gear 621 is rotatably installed at the bottom of the connecting plate 62. The synchronous gear 621 has four synchronous slots 623. The synchronous shaft 622 is movably connected to the synchronous slots 623. A gear is rotatably installed at the bottom of the connecting plate 62, and the gear meshes with the synchronous gear 621. The connecting plate 62 is driven to rotate by a servo motor, which is electrically connected to an external controller. A servo motor drives a gear to rotate, which in turn drives a synchronous gear 621 to rotate synchronously. This causes the synchronous shaft 622 to slide inside the synchronous groove 623, allowing the bolt holes 4 of the four connecting discs 62 to move synchronously toward the center or expand outwards. Two slot clamping blocks 65 are slidably mounted on the connecting discs 62. The slot clamping blocks 65 are driven by an electric push rod, which is electrically connected to an external controller. The slot clamping blocks 65 are equipped with an anti-inversion component, which ensures the accuracy of the front and back of the flange 1 when it is placed, preventing the flange 1 from being placed upside down. With a clamping auxiliary assembly mechanism, before tapping the bolt holes 4, the flange 1 is placed on the connecting disc 62. The slot clamping blocks 65, in conjunction with the anti-inversion component, ensure that the flange 1 is placed correctly. With accurate placement, the flange 1 is fixed by using the synchronous gear 621, synchronous shaft 622, and synchronous groove 623 in conjunction with the drive inner support clamp 64 to abut against the inner wall. Then, the adjusting disc 1 2 and adjusting disc 2 3 are manually assembled into the inside of the flange 1. The adjusting disc 1 2 and adjusting disc 2 3 are clamped by the side clamp 66, and the positions of adjusting disc 1 2 and adjusting disc 2 3 are adjusted by the hole position detection and positioning mechanism to ensure the initial position of the bolt hole 4 is accurate and to ensure the subsequent tapping effect. At the same time, during the later tapping process, the flange 1, adjusting disc 1 2 and adjusting disc 2 3 are stably clamped by the cooperation of the inner support clamp 64, groove clamp 65 and side clamp 66 to ensure the stability of the tapping process.

[0040] As an optimized technical solution for threaded flanges for petroleum equipment and their automatic processing equipment according to the present invention, the anti-inversion component includes a movable pressure plate 651, which is slidably mounted on a slot clamping block 65. A contact sensor 653 is fixedly installed inside the slot clamping block 65 and is electrically connected to an external controller. A spring 652 is fixedly installed inside the slot clamping block 65, and one end of the spring 652 is fixedly connected to the movable pressure 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 engages with the corresponding... In the slot clamp 65, the flange 1 is placed in the correct position. When the flange 1 is not reversed (the flange 1 is placed in the correct position, i.e., the pipe connection surface of the flange 1 is facing down and the sealing surface is facing up), the contact sensor 653 does not send a contact signal to the control system. When the flange 1 is reversed, the sealing surface of the flange 1 is facing down, and the movable pressure plate 651 is pressed down by the flange 1 until it contacts the contact sensor 653. The control system receives the contact signal, which indicates that the flange 1 is reversed. After manual reversal, the subsequent tapping operation is performed to ensure the tapping effect.

[0041] As a technical optimization scheme for threaded flanges for petroleum equipment and their automatic processing equipment according to the present invention, the hole position detection and positioning mechanism includes an outer adjusting frame 72, which is rotatably mounted on a lifting seat 7. A movable seat 721 is rotatably mounted on the lifting seat 7. The movable seat 721 and the outer adjusting frame 72 are fixed to each other by three round shafts. The outer adjusting frame 72 is driven to rotate by the meshing of a gear ring and a gear. The gear is rotatably mounted on the lifting seat 7 and is driven by a servo motor. The servo motor is electrically connected to an external controller. The gear ring is fixedly connected to the outer adjusting frame 72. The outer adjusting frame 72 and the movable seat... Three mounting bases 722 are slidably installed between the mounting bases 721. Each mounting base 722 is driven by an electric cylinder, with the telescopic end of the cylinder fixedly connected to the mounting base 722. The electric cylinder is electrically connected to an external controller. The angle between any two mounting bases 722 is 45°. An air pump 74 is fixedly installed on the external adjustment frame 72 and is electrically connected to the external controller. A vertical cylinder 73 is movably installed at the bottom of each mounting base 722. The vertical cylinder 73 is driven by an electric cylinder, which is electrically connected to the 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 base 722. 73 is a hollow structure. The vertical cylinder 73 is connected to the air outlet of the air pump 74 via an air guide pipe 741, which is an elastic pipe. Air holes 731 are evenly distributed on the vertical cylinder 73. Four limiting plates 732 are movably mounted on the vertical cylinder 73, and rollers are evenly rotatably mounted on the limiting plates 732. Four scissor lifters 733 are movably mounted on the vertical cylinder 73, with one end of each scissor lifter 73 rotatably mounted on the vertical cylinder 73. A drive block 734 is slidably mounted inside the vertical cylinder 73. The drive block 734 is driven by an electric push rod, which is electrically connected to an external controller. The drive block 734 can... The interior of the vertical cylinder 73 slides up and down. The drive block 734 is rotatably connected to one end of the scissor lift 733. Both ends of the scissor lift 733 near 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 has a hemispherical structure. A pressing 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 the external controller.By incorporating a hole position detection and positioning mechanism, when adjusting disc 1 (2) and adjusting disc 2 (3) are manually assembled into flange 1, the hemispherical blocks 735 on the three vertical cylinders 73 press against the top of flange 1. During this pressing process, the movement of the hemispherical blocks 735 and the pressure signal fed back to the control system by the pressure sensor 737 detect whether the bolt holes 4 are accurately aligned. After alignment, the tap 71 performs tapping operation on the bolt holes 4. During tapping, the hemispherical blocks 735, in conjunction with the pressure sensor 737, detect whether the bolt holes 4 at subsequent positions are accurate. After the hole position is detected as accurate, the limiting plate 732 extends outward to... The inner wall of bolt hole 4 is fitted to ensure that the position of bolt hole 4 does not shift during tapping. Simultaneously, air is blown into bolt hole 4 using air pump 74 and air guide pipe 741 to prevent tapping debris from splashing and adhering to the interior of subsequent bolt holes 4, affecting the tapping effect. After all bolt holes 4 have been tapped, air is blown into bolt holes 4 using the rotation adjustment of the flange body, the hole position detection of hemispherical block 735 and pressure sensor 737, and air pump 74, air guide pipe 741, vertical cylinder 73, and air hole 731 to clean tapping debris from the inside of bolt holes 4, improving the overall tapping effect.

[0042] In use, the flange 1 with pre-cut internal threads is placed on top of the connecting plate 62. During placement, ensure that the pipe connection surface of the flange 1 faces downwards and the sealing surface faces upwards. Simultaneously, ensure that the two arc grooves 11 on the flange 1, located on the central axis, are aligned with the groove clamping block 65. When the flange 1 is placed, the movable pressure plate 651 contacts the bottom of the flange 1 and slides downwards. Since the pipe connection surface on the flange 1 is convex outwards, if the flange 1 is placed accurately (i.e., the pipe connection surface on the flange 1 faces downwards and the sealing surface faces upwards, with the sealing surface designated as the front and the pipe connection surface as the back), When the movable pressure plate 651 contacts the pipe connection surface at the bottom of the flange 1, the movable pressure plate 651 slides downward but does not contact the contact sensor 653. The contact sensor 653 does not send a contact signal to the control system. If the flange 1 is placed upside down (i.e., the sealing surface on the flange 1 is facing down and the pipe connection surface is facing up), when the movable pressure plate 651 contacts the sealing surface at the bottom of the flange 1, the movable pressure plate 651 is pressed down and slides down, contacts the contact sensor 653, and sends a contact signal to the control system. The control system receives the feedback signal and manually rotates the flange 1.

[0043] The servo motor drives 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 clamping block 64 to expand outward and contact the inner wall of the flange 1 through the synchronous shaft 622 and the synchronous groove 623 to clamp the flange 1.

[0044] After flange 1 is clamped and fixed, adjusting disc 2 and adjusting disc 3 are manually assembled into the interior of flange 1. Once in place, the electric cylinder drives the clamping plate 66 to move towards adjusting disc 2 and adjusting disc 3 to clamp them. After clamping, the hydraulic telescopic rod drives the lifting seat 7 to descend, thereby lowering the vertical cylinder 73. Then, the electric cylinder drives the vertical cylinder 73 to descend into place. At this time, the hemispherical block 735 on the vertical cylinder 73 is aligned with a set of three arc grooves 11 on the sealing surface of flange 1. The hemispherical block 735 contacts the top of adjusting disc 2 or adjusting disc 3 and is pushed towards the interior of the vertical cylinder 73. The pressure block 738 contacts and presses against the pressure sensor 737, feeding back a pressure value signal to the control system. Then, the servo motor drives the gear. The rotating mechanism meshes with the gear ring to drive the adjustment platform 63 and its two side clamps 66 to rotate. When the side clamps 66 rotate, they drive the adjustment disc 1 2 and adjustment disc 2 3 to rotate and adjust inside the flange 1. During the rotation, if the position of the three hemispherical blocks 735 is opposite to the position of the three bolt holes 4 on the adjustment disc 1 2 or adjustment disc 2 3, the hemispherical blocks 735 are no longer squeezed by the adjustment disc 1 2 or adjustment disc 2 3. The outer adjustment frame 72 frame 5 pops down under the action of the spring 2 736. The pressure block 738 no longer squeezes the pressure sensor 737. The pressure sensor 737 feeds back the pressure value to the control system as 0. This indicates that the position of the bolt holes 4 on the adjustment disc 1 2 and adjustment disc 2 3 is aligned with the position of the arc groove 11 on the flange 1. The adjustment disc 1 2 and adjustment disc 2 3 are assembled.

[0045] After the adjustment plates 1 and 2 are assembled, the servo motor drives the gear to rotate and mesh with the gear ring to drive the outer adjustment frame 72 to rotate until the angle between the vertical cylinder 73 near the tap 71 and the tap 71 is 45°. At the same time, the servo motor drives the gear to rotate to drive the movable plate 61 to rotate the flange 1, adjustment plate 1, and adjustment plate 2 to adjust the tap 71 to be aligned with the bolt hole 4 on the upper side of adjustment plate 1 or adjustment plate 2 (hereinafter, the bolt hole 4 at this position is defined as the first bolt hole 4). The electric cylinder drives the three vertical cylinders 73 to descend. When the vertical cylinder 73 descends to the correct position, the pressure value is detected by the hemispherical block 735 in conjunction with the pressure sensor 737 to detect the position of the bolt hole 4. The electric cylinder on the upper side of the hemispherical block 735 where the bolt hole 4 position is not detected is activated to drive the corresponding vertical cylinder 73 to move upward. Then, the lifting seat 7 is controlled to move upward. The system lowers and controls the motor to start, driving the tap 71 to rotate for tapping the first bolt hole 4. Simultaneously, the electric cylinder on the upper side of the hemispherical block 735, which detects the position of the bolt hole 4, drives the corresponding vertical cylinder 73 to descend into the interior of the second bolt hole 4. At the same time, the electric push rod drives the drive block 734 to descend, causing the four limit plates 732 to open outwards until the rollers on them contact the inner wall of the bolt hole 4. Simultaneously, the air pump 74 is started to blow air into the bolt hole 4 through the air pipe 741 and the air hole 731. After the tapping of the first bolt hole 4 is completed, the lifting seat 7 rises, the limit plate 732 moves and resets, and the electric cylinder drives the vertical cylinder 73 to move and reset. The servo motor drives the gear to rotate and mesh, causing the flange 1, adjusting plate 1 2 and adjusting plate 2 3 to rotate clockwise by 45° to switch the tap 71 to be opposite the second bolt hole 4.

[0046] Subsequently, the electric cylinder drives the three vertical cylinders 73 to descend. Based on the pressure value fed back by the pressure sensor 737, the electric cylinder on the upper side of the hemispherical block 735 where the bolt hole 4 has not been detected is activated, driving the corresponding vertical cylinder 73 to move upward. The lifting seat 7 is controlled to descend and rotate to perform tapping of the second bolt hole 4. At the same time, the vertical cylinder 73 where the bolt hole 4 has been detected is controlled to descend into the subsequent untapping bolt hole 4. Simultaneously, the four limiting plates 732 are controlled to open outward so that the rollers on them contact the inner wall of the bolt hole 4. At the same time, the air pump 74 is activated to transmit air through the air guide pipe 741 and air... Air is blown into the bolt hole 4 through hole 731. After the second bolt hole 4 is tapped, the lifting seat 7 rises, the control limit plate 732 moves and resets, and the electric cylinder drives the vertical cylinder 73 to move and reset. The servo motor drives the gear to rotate and mesh, and drives the flange 1, the first adjustment plate 2 and the second adjustment plate 3 to rotate as a whole by 45°. After this step is repeated three times, the tapping operation of a set of three bolt holes 4 on the first adjustment plate 2 or the second adjustment plate 3 is completed. Then the movable plate 61 is controlled to rotate 90° clockwise to switch to the next set of three bolt holes 4.

[0047] After the tapping operation of all bolt holes 4 is completed, the lifting seat 7 is raised, and then the electric cylinder is controlled to drive the three vertical cylinders 73 to descend for hole position detection. The electric cylinder at the vertical cylinder 73 of the detected bolt hole 4 position continues to control the vertical cylinder 73 to descend into the bolt hole 4. The air pump 74 is started to blow air. While blowing air, the movable plate 61 is controlled to rotate, rotating 45° each time, to complete the cleaning of debris inside all bolt holes 4.

[0048] After tapping and cleaning are completed, the bolts are manually screwed into the middle bolt hole 4 of each group of three bolt holes 4 and tightened. After tightening, the first flange body is removed and the second flange body is processed.

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

[0050] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic processing device for threaded flanges used in oil equipment, used to process threaded flanges, the threaded flange including a flange body, characterized in that: The flange body includes a flange (1), the inner circular wall of the flange (1) is provided with internal threads, the top and bottom of the flange (1) are provided with six arc grooves (11), the flange (1) is provided with an adjustment plate one (2) inside the flange (1), the flange (1) is provided with an adjustment plate two (3) inside the flange (1), the adjustment plate one (2) and the adjustment plate two (3) are provided with three bolt holes (4), the inner circular wall of the bolt holes (4) is provided with internal threads, and the included angle between every two adjacent bolt holes (4) is 45°; Every three of the arc grooves (11) form a group, and the interval between the three arc grooves (11) in each group is equal. A protrusion is fixedly installed on the side wall where the first adjustment plate (2) and the second adjustment plate (3) are in contact. A notch adapted to the protrusion is opened on the side wall where the second adjustment plate (3) and the first adjustment plate (2) are in contact. The automatic processing equipment includes a frame (5), on which a chassis (6) is fixedly installed. The chassis (6) is provided with a clamping auxiliary assembly mechanism including a movable plate (61), a connecting plate (62), an inner support clamp (64), and a side clamp (66). A lifting seat (7) is movably installed on the frame (5). A tap (71) is movably installed at the bottom of the lifting seat (7). A hole position detection and positioning mechanism including an outer adjustment frame (72), a vertical cylinder (73), a limit plate (732), and a pressure sensor (737) is provided on the lifting seat (7). The movable plate (61) is rotatably mounted on the top of the chassis (6), the connecting plate (62) is fixedly mounted on the movable plate (61), the adjusting platform (63) is rotatably mounted on the connecting plate (62), the two side clamps (66) are symmetrically fixedly mounted on the adjusting platform (63), and the four inner support clamps (64) are slidably mounted on the connecting plate (62). The outer adjustment frame (72) is rotatably mounted on the lifting seat (7), the three vertical cylinders (73) are movably mounted on one side of the outer adjustment frame (72), the four limiting plates (732) are movably mounted on the vertical cylinder (73), the pressure sensor (737) is fixedly mounted inside the vertical cylinder (73), the air pump (74) is fixedly mounted on the outer adjustment frame (72), and the hemispherical block (735) is movably mounted on the bottom of the vertical cylinder (73). 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 by three round shafts. Three mounting seats (722) are slidably installed between the outer adjustment frame (72) and the movable seat (721), and the included angle between each pair of mounting seats (722) is 45°. The vertical cylinder (73) is movably installed at the bottom of the mounting base (722). The vertical cylinder (73) is connected to the air outlet on the air pump (74) through the air guide pipe (741). Air holes (731) are evenly opened on the vertical cylinder (73). Rollers are evenly rotatably mounted on the limiting plate (732). The hole position detection and positioning mechanism also includes a scissor lift (733). Four scissor lifts (733) are movably mounted on the vertical cylinder (73). One end of the scissor lift (733) is rotatably mounted on the vertical cylinder (73). A drive block (734) is slidably mounted inside the vertical cylinder (73). The drive block (734) is rotatably connected to one end of the scissor lift (733). Both ends of the scissor lift (733) near the limiting plate (732) are movably connected to the limiting plate (732). The hole position detection and positioning mechanism also includes a pressure block (738), which is fixedly installed on the hemispherical block (735). A second spring (736) is fixedly installed inside the vertical cylinder (73), and one end of the second spring (736) is fixedly connected to the hemispherical block (735).

2. The automatic processing equipment for threaded flanges for petroleum equipment according to claim 1, characterized in that: The clamping auxiliary assembly mechanism also includes a synchronous shaft (622), which is fixedly installed at the bottom of the inner support clamping block (64). A synchronous gear (621) is rotatably installed at the bottom of the connecting plate (62). Four synchronous slots (623) are provided on the synchronous gear (621), and the synchronous shaft (622) is movably connected to the synchronous slots (623).

3. The automatic processing equipment for threaded flanges for petroleum equipment according to claim 1, characterized in that: Two slot clamps (65) are slidably installed on the connecting plate (62), and anti-inversion components are provided on the slot clamps (65).

4. The automatic processing equipment for threaded flanges for petroleum equipment according to claim 3, characterized in that: The anti-inversion assembly includes a movable pressure plate (651), which is slidably mounted on the slot clamp (65). A contact sensor (653) is fixedly installed inside the slot clamp (65), and a spring (652) is fixedly installed inside the slot clamp (65). One end of the spring (652) is fixedly connected to the movable pressure plate (651).

Images