Large-diameter high-pressure flange and production equipment and method

Abstract

The invention discloses a large-diameter high-pressure flange and production equipment and method, belonging to the technical field of flange processing equipment. A large-diameter high-pressure flange comprises a flange plate, one end face of the flange plate is provided with a boss, an end face of the flange plate away from the boss is provided with a sealing groove, an end face of the flange plate away from the boss is also provided with a magnetic suction groove, the magnetic suction groove is filled with a magnetic suction layer, the side of the magnetic suction layer away from the magnetic suction groove is flush with the end face of the flange plate, and the outer wall of the flange plate close to the outer edge is also provided with evenly distributed mounting holes; the production equipment of the invention can realize the functions of automatic clamping of the flange and spraying of magnetic coating, greatly improves the production efficiency compared with manual work, and has high processing stability, and at the same time, the equipment can adapt to the production and processing needs of flanges of different sizes and has strong applicability.

Description

Technical Field

[0001] The invention relates to the technical field of flange processing equipment, and in particular to a large-diameter high-pressure flange and production equipment and method. Background Art

[0002] High-pressure flange is a high-pressure flange used to connect high-pressure pipes or equipment. It is usually used in petroleum, chemical, natural gas and other industries. The design and manufacture of high-pressure flanges need to take into account factors such as high pressure, high temperature, and corrosion. Therefore, its material, structure and manufacturing process need to comply with the corresponding standards and specifications. There are many types of high-pressure flanges. According to the connection method, it can be divided into threaded connection, welding connection, high-pressure flange connection, etc. According to the material, it can be divided into carbon steel, stainless steel, alloy steel, etc. According to the pressure level, it can be divided into low pressure, medium pressure, high pressure, etc.

[0003] Most of the existing high-pressure flanges are sealed with sealing gaskets, and the matching accuracy between the flanges is used to ensure the sealing between certain flange connection devices. However, this sealing method has great limitations in the field of high temperature and high pressure. The utility model patent with patent application number CN202020852818.7 discloses a high-pressure flange with a magnetic suction function. The production and processing of magnetic coatings for this type of large-diameter high-pressure flange still has the following defects:

[0004] Due to the size problem of large-diameter high-pressure flanges, manual spraying efficiency is low and the stability of manual spraying is poor;

[0005] Failure to level the surface in time after spraying results in poor flatness of the magnetic coating. Summary of the invention

[0006] The purpose of the present invention is to solve the problems in the prior art of large-diameter high-pressure flanges, low manual spraying efficiency, poor stability of manual spraying, and failure to level in time after spraying, resulting in poor flatness of the magnetic coating, and to propose a large-diameter high-pressure flange.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A large-diameter high-pressure flange comprises a flange plate, wherein a boss is arranged on one end face of the flange plate, a sealing groove is provided on the end face of the flange plate away from the boss, a magnetic groove is also provided on the end face of the flange plate away from the boss, the magnetic groove is filled with a magnetic layer, a side of the magnetic layer away from the magnetic groove is flush with the end face of the flange plate, and evenly distributed mounting holes are also provided on the outer wall of the flange plate close to the outer edge.

[0009] Preferably, a sealing ring is installed in the sealing groove, and a reinforcing plate is connected between the outer side wall of the boss and the end face of the flange.

[0010] A production device for large-caliber high-pressure flanges, comprising a mounting box with a hollow inner cavity and limit grooves opened on the top of the mounting box and evenly arranged, and also comprising:

[0011] A rotating ring rotatably connected to the top center of the installation box;

[0012] The inner diameter positioning mechanism is fixedly installed at the top center of the installation box and is used to position the inner diameter of the flange. The inner diameter positioning mechanism passes through the rotating ring.

[0013] A centering clamping mechanism, which is installed on the inner wall of the bottom of the installation box and is used to clamp the outer diameter of the flange. The clamping end of the centering clamping mechanism is connected to a clamping arm that slidably cooperates with the limit groove;

[0014] A rotation adjustment mechanism, which is installed at the top of the clamping arm and is used to drive the flange to rotate;

[0015] A milling slotting mechanism, which is installed on one of the assembly clamp arms and is used to open a sealing slot and a magnetic suction slot on the flange;

[0016] A magnetic coating spraying mechanism, which is installed on a clamping arm adjacent to the milling and slotting mechanism and is used to spray the NdFeB magnetic material into the magnetic suction groove;

[0017] A waste liquid collection mechanism is installed on a clamping arm adjacent to the magnetic coating spraying mechanism.

[0018] Preferably, the centering clamping mechanism includes a fixing plate fixedly installed at the bottom center of the installation box, a positioning rod is fixedly connected at the top center of the fixing plate, the outer side wall of the positioning rod is rotatably connected to a cross transmission plate, the end of the cross transmission plate is rotatably connected to a driven rod, a sliding groove is also provided on the bottom inner wall of the installation box, a slider is slidably connected in the sliding groove, a threaded rod is rotatably connected to the top of the slider, and the threaded rod is rotatably connected to one end of the driven rod away from the cross transmission plate, a first hydraulic telescopic cylinder is connected between the slider and the fixing plate, and the clamping arm is threadedly matched with the threaded rod.

[0019] Preferably, the rotation adjustment mechanism comprises a U-shaped frame fixedly mounted on the top of the clamping arm, and the vertical sections of the U-shaped frame are respectively mounted with a main driving wheel and a driven wheel;

[0020] The top end of the threaded rod is fixedly connected with a connecting rod, the connecting rod passes through the U-shaped frame and extends upward, and the extended end of the connecting rod is fixedly connected with a handle.

[0021] Preferably, the inner diameter positioning mechanism includes a second hydraulic telescopic cylinder fixedly installed at the top center of the mounting box, the telescopic end of the second hydraulic telescopic cylinder is fixedly connected to a mounting plate, a resistance rod is rotatably connected to the outer edge of the mounting plate, an end of the resistance rod away from the mounting plate is rotatably connected to an L-shaped resistance block, the horizontal section and the vertical section of the L-shaped resistance block are both provided with mounting grooves, and a pressure roller and a resistance roller are rotatably connected in the mounting grooves of the horizontal section and the vertical section of the L-shaped resistance block respectively.

[0022] Preferably, the milling and slotting mechanism comprises a first lifting mechanism installed on the outer side wall of the clamping arm, the lifting end of the first lifting mechanism is fixedly connected to a third hydraulic telescopic cylinder, the telescopic end of the third hydraulic telescopic cylinder is fixedly connected to a first assembly plate, a servo motor is installed on the top of the first assembly plate, the output end of the servo motor extends downward through the first assembly plate, and the output end of the servo motor is detachably connected to a milling cutter;

[0023] The top of the first assembly plate is also fixedly connected to a negative pressure collection component, and the negative pressure collection component includes a collection box installed on one side of the first assembly plate, the top of the collection box is fixedly connected to a negative pressure pump, a collection pipe is connected between the positive pressure end of the negative pressure pump and the feed port of the collection box, the bottom of the first assembly plate is fixedly connected to symmetrically distributed electric telescopic rods, the telescopic ends of the electric telescopic rods are fixedly connected to a protective cover covering the outside of the milling cutter, the outer side wall of the protective cover is fixedly connected to an annular absorption pipe, the junction of the annular absorption pipe and the protective cover is provided with an adsorption port, and a negative pressure pipe is connected between the negative pressure end of the negative pressure pump and the annular absorption pipe;

[0024] The first lifting mechanism comprises a vertically arranged mounting frame fixedly mounted on the outer side wall of the clamping arm, a driving screw and a sliding rod are mounted on the mounting frame, and a lifting seat which is slidably matched with the sliding rod is threadedly connected to the outer side wall of the driving screw.

[0025] Preferably, the magnetic coating spraying mechanism includes a second lifting mechanism fixedly mounted on the outer side wall of the clamping arm, the lifting end of the second lifting mechanism is fixedly connected to a fourth hydraulic telescopic cylinder, the telescopic end of the fourth hydraulic telescopic cylinder is fixedly connected to a second assembly plate, the top of the second assembly plate is fixedly connected to a sprayer, the output end of the sprayer is fixedly connected to a spray main pipe extending downward through the second assembly plate, the end of the spray main pipe away from the second assembly plate is fixedly connected to a cross pipe, the bottom of the cross pipe is fixedly mounted with evenly distributed nozzles, and the nozzles are provided with solenoid valves.

[0026] Preferably, the waste liquid collection mechanism includes a third lifting mechanism fixedly mounted on the outer side wall of the clamping arm, the lifting end of the third lifting mechanism is fixedly connected to a fifth hydraulic telescopic cylinder, the telescopic end of the fifth hydraulic telescopic cylinder is fixedly connected to a recovery box, the top of the recovery box is fixedly connected to a liquid pump, a reflux pipe is connected between the liquid outlet end of the liquid pump and the feed port of the recovery box, the bottom of the recovery box is fixedly connected to a vertical rod, the end of the vertical rod away from the recovery box is fixedly connected to an inclined plate, the outer side wall of the inclined plate is also fixedly connected to an arc plate, the liquid inlet end of the liquid pump is fixedly connected to a liquid inlet pipe, and the end of the liquid inlet pipe away from the liquid pump is fixedly connected to the inner side wall of the arc plate near the bottom end.

[0027] A method for using a large-diameter high-pressure flange production device comprises the following steps:

[0028] S1: The boss of the flange is pressed against the top of the rotating ring, and then the first hydraulic telescopic cylinder is turned on to shrink. When the first hydraulic telescopic cylinder shrinks, the distance between the slider and the fixed plate becomes smaller, thereby driving the threaded rod and the clamping arm connected thereto to approach the flange placed on the rotating ring. When the threaded rod connected to the first hydraulic telescopic cylinder approaches the direction of the flange, it drives the driven rod connected thereto to rotate, thereby driving the cross transmission plate to rotate. At this time, the angle between the driven rod and the cross transmission plate becomes smaller, thereby driving the angles between other driven rods connected to the cross transmission plate to become smaller, so that the four groups of threaded rods are simultaneously close to the flange, thereby driving the clamping arm and the U-shaped frame to move in the direction close to the flange, and finally the main driving wheel and the driven wheel are pressed against the outer edge of the flange, thereby realizing the centering clamping function of the outer diameter of the flange;

[0029] S2: Then adjust the extension length of the second hydraulic telescopic cylinder so that the pressure roller and the contact roller of the horizontal section and the vertical section of the L-shaped contact block respectively contact the end surface of the flange and the inner wall of the flange, thereby realizing the positioning function of the inner diameter of the flange;

[0030] S3: According to the size of the slot to be cut, replace the specified milling cutter, then adjust the driving screw on the first lifting mechanism to drive the lifting seat to rise and fall along the sliding rod, and adjust the position of the first assembly plate by telescoping the third hydraulic telescopic cylinder so that the milling cutter reaches the specified operating position. At the same time, the electric telescopic rod is telescoping so that the protective cover covers the outside of the milling cutter, and the main driving wheel is turned on. The flange is driven to rotate under the friction between the main driving wheel and the outer edge of the flange. At the same time, the servo motor is turned on to drive the milling cutter to rotate, and the flange in the rotating state is slotted. At the same time, the negative pressure pump is turned on. The negative pressure pump generates negative pressure at the adsorption port of the annular absorption tube through the negative pressure tube, and the debris generated during the slotting process is collected in the collection box;

[0031] S4: By adjusting the lifting height of the second lifting mechanism and the telescopic length of the fourth hydraulic telescopic cylinder, the position of the nozzle is adjusted, and then the solenoid valve on the corresponding nozzle is opened according to the spraying range, and then the sprayer is turned on to spray the magnetic suction groove opened by the milling slotting mechanism;

[0032] S5: While adjusting the second lifting mechanism, adjust the position of the third lifting mechanism and the fifth hydraulic telescopic cylinder to adjust the inclined plate to match the clearance of the flange. Then, during the rotation of the flange, the inclined plate scrapes the coating overflowing from the magnetic suction groove to the curved plate. At the same time, turn on the liquid pump to pump the excess spray liquid accumulated at the curved plate into the recovery box through the liquid inlet pipe to achieve waste liquid recovery while ensuring the flatness of the magnetic suction layer.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. This large-diameter high-pressure flange realizes the positioning and clamping functions of the outer diameter and inner diameter of the flange through the centering clamping mechanism and the inner diameter positioning mechanism;

[0035] 2. The large-diameter high-pressure flange realizes the vertical pressing effect during the flange clamping process through the setting of the pressure roller and the rotating ring, further ensuring the stability of the clamping, which is helpful to improve the grooving accuracy of the flange and the spraying accuracy of the magnetic coating. At the same time, combined with the optional rotation adjustment mechanism, the self-rotation function of the clamped flange is realized, which provides convenience for subsequent processing;

[0036] 3. The large-caliber high-pressure flange can level the sprayed magnetic coating through the waste liquid collection component, and the excess waste liquid can be collected in time after leveling, which solves the problem of poor flatness of the magnetic coating caused by the inability to level in time after spraying in the prior art;

[0037] 4. The large-diameter high-pressure flange realizes the automatic grooving function of the flange plate and the collection function of the grooving debris through the milling grooving mechanism and the negative pressure collection component. The milling cutter can be replaced with a grinding part according to needs, and the rough flange can also be ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is one of the structural schematic diagrams of the large-diameter high-pressure flange production equipment in the present invention;

[0039] Figure 2 It is a structural schematic diagram of the inner diameter positioning mechanism of the large-diameter high-pressure flange production equipment in the present invention;

[0040] Figure 3 This is a schematic diagram of the internal structure of the installation box of the large-diameter high-pressure flange production equipment in the present invention;

[0041] Figure 4A top view of a large-diameter high-pressure flange production device in the present invention;

[0042] Figure 5 This is one of the structural schematic diagrams of the milling and grooving mechanism of the large-caliber high-pressure flange production equipment in the present invention;

[0043] Figure 6 The second structural schematic diagram of the milling and grooving mechanism of the large-caliber high-pressure flange production equipment in the present invention;

[0044] Figure 7 It is a structural schematic diagram of the magnetic coating spraying mechanism of the large-caliber high-pressure flange production equipment in the present invention;

[0045] Figure 8 It is a structural schematic diagram of the waste liquid collection mechanism of the large-caliber high-pressure flange production equipment in the present invention;

[0046] Fig. 9 It is a structural schematic diagram of the rotary adjustment mechanism of the large-caliber high-pressure flange production equipment in the present invention;

[0047] Fig.10 This is one of the structural schematic diagrams of the large-diameter high-pressure flange of the present invention;

[0048] Fig.11 This is the second structural schematic diagram of the large-diameter high-pressure flange of the present invention.

[0049] In the figure: 10, flange; 110, boss; 120, sealing groove; 130, magnetic groove; 140, magnetic layer; 150, mounting hole; 160, reinforcing plate; 20, mounting box; 210, limit groove; 220, rotating ring; 230, slide groove; 240, slider; 250, threaded rod; 260, connecting rod; 270, handle; 30, inner diameter positioning mechanism; 310, second hydraulic telescopic cylinder; 320, mounting plate; 330, stop Touch rod; 340, L-shaped resistance block; 350, pressure roller; 360, resistance roller; 40, centering clamping mechanism; 410, clamping arm; 420, fixing plate; 430, positioning rod; 440, cross transmission plate; 450, driven rod; 460, first hydraulic telescopic cylinder; 50, rotation adjustment mechanism; 510, U-shaped frame; 520, main driving wheel; 530, driven wheel; 60, milling and slotting mechanism; 610, first lifting mechanism; 611, installation Mounting rack; 612, driving screw rod; 613, sliding rod; 614, lifting seat; 620, third hydraulic telescopic cylinder; 630, first assembly plate; 640, servo motor; 650, milling cutter; 660, negative pressure collection assembly; 661, collection box; 662, negative pressure pump; 663, collection pipe; 664, electric telescopic rod; 665, protective cover; 666, annular absorption pipe; 667, negative pressure pipe; 70, magnetic coating spraying mechanism; 710, the first Second lifting mechanism; 720, fourth hydraulic telescopic cylinder; 730, second assembly plate; 740, sprayer; 750, spray main pipe; 760, horizontal pipe; 770, nozzle; 780, solenoid valve; 80, waste liquid collecting mechanism; 810, third lifting mechanism; 820, fifth hydraulic telescopic cylinder; 830, recovery box; 840, liquid pump; 850, reflux pipe; 860, vertical rod; 870, inclined plate; 880, arc plate; 890, liquid inlet pipe. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0051] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0052] Example 1: Reference Fig.10 and Fig.11 A large-diameter high-pressure flange includes a flange 10, a boss 110 is arranged on one end face of the flange 10, a sealing groove 120 is opened on the end face of the flange 10 away from the boss 110, and a magnetic groove 130 is also opened on the end face of the flange 10 away from the boss 110. The magnetic groove 130 is filled with a magnetic layer 140, and the side of the magnetic layer 140 away from the magnetic groove 130 is flush with the end face of the flange 10. The outer wall of the flange 10 near the outer edge is also opened with evenly distributed mounting holes 150, a sealing ring is installed in the sealing groove 120, and a reinforcing plate 160 is connected between the outer wall of the boss 110 and the end face of the flange 10.

[0053] The large-diameter high-pressure flange can be tightly connected in a high-temperature and high-pressure environment, thereby improving the sealing performance of the connecting flange.

[0054] Example 2: Reference Figure 1 ,picture, Figure 3 ,picture Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 , a large-caliber high-pressure flange production equipment, including a hollow installation box 20 and a uniformly arranged limit groove 210 opened on the top of the installation box 20, and also includes,

[0055] A rotating ring 220, the rotating ring 220 is rotatably connected at the top center of the installation box 20;

[0056] The inner diameter positioning mechanism 30 is fixedly installed at the top center of the installation box 20 and is used to position the inner diameter of the flange 10. The inner diameter positioning mechanism 30 passes through the rotating ring 220.

[0057] A centering clamping mechanism 40, which is installed on the inner wall of the bottom of the installation box 20 and is used to clamp the outer diameter of the flange 10. The clamping end of the centering clamping mechanism 40 is connected to a clamping arm 410 that is slidably matched with the limiting groove 210;

[0058] A rotation adjustment mechanism 50, which is mounted on the top of the clamping arm 410 and is used to drive the flange 10 to rotate;

[0059] A milling slotting mechanism 60, which is installed on one of the assembly clamp arms 410 and is used to open a sealing slot 120 and a magnetic slot 130 on the flange 10;

[0060] A magnetic coating spraying mechanism 70, which is mounted on a clamping arm 410 adjacent to the milling and slotting mechanism 60, and is used to spray the NdFeB magnetic material into the magnetic suction groove 130;

[0061] The waste liquid collecting mechanism 80 is installed on the clamping arm 410 adjacent to the magnetic coating spraying mechanism 70 .

[0062] Reference Figure 2 and Figure 3 The centering clamping mechanism 40 includes a fixed plate 420 fixedly installed at the bottom center of the installation box 20, a positioning rod 430 is fixedly connected at the top center of the fixed plate 420, the outer wall of the positioning rod 430 is rotatably connected to a cross transmission plate 440, and the end of the cross transmission plate 440 is rotatably connected to a driven rod 450. A sliding groove 230 is also provided on the bottom inner wall of the installation box 20, and a slider 240 is slidably connected in the sliding groove 230. The top of the slider 240 is rotatably connected to a threaded rod 250, and the threaded rod 250 is rotatably connected to the end of the driven rod 450 away from the cross transmission plate 440. A first hydraulic telescopic cylinder 460 is connected between the slider 240 and the fixed plate 420, and the clamping arm 410 is threadedly matched with the threaded rod 250 to make the flange boss 110 contact the top of the rotating ring 220, and then the first hydraulic telescopic cylinder 460 is opened to contract. When the first hydraulic telescopic cylinder 460 When the slider 240 is retracted, the distance between the slider 240 and the fixed plate 420 becomes smaller, thereby driving the threaded rod 250 and the clamping arm 410 connected thereto to approach the flange 10 placed on the rotating ring 220. When the threaded rod 250 connected to the first hydraulic telescopic cylinder 460 approaches the direction of the flange 10, it drives the driven rod 450 connected thereto to rotate, thereby driving the cross transmission plate 440 to rotate. At this time, the angle between the driven rod 450 and the cross transmission plate 440 becomes smaller, thereby driving the angle between other driven rods 450 connected to the cross transmission plate 440 to become smaller, so that the four groups of threaded rods 250 approach the flange 10 at the same time, thereby driving the clamping arm 410 and the U-shaped frame 510 to move towards the direction close to the flange 10, and finally the main driving wheel 520 and the driven wheel 530 abut against the outer edge of the flange 10, thereby realizing the centering clamping function of the outer diameter of the flange 10.

[0063] Reference Figure 1 and Fig. 9 The rotation adjustment mechanism 50 includes a U-shaped frame 510 fixedly mounted on the top of the clamping arm 410, and the vertical sections of the U-shaped frame 510 are respectively mounted with a main driving wheel 520 and a driven wheel 530;

[0064] The top end of the threaded rod 250 is fixedly connected to a connecting rod 260 . The connecting rod 260 passes through the U-shaped frame 510 and extends upward. The extended end of the connecting rod 260 is fixedly connected to a handle 270 .

[0065] Reference Figure 1 , Figure 2 and Figure 4The inner diameter positioning mechanism 30 includes a second hydraulic telescopic cylinder 310 fixedly installed at the top center of the installation box 20, the telescopic end of the second hydraulic telescopic cylinder 310 is fixedly connected to the mounting plate 320, and the outer edge of the mounting plate 320 is rotatably connected to a resistance rod 330, and the end of the resistance rod 330 away from the mounting plate 320 is rotatably connected to an L-shaped resistance block 340, and the horizontal section and the vertical section of the L-shaped resistance block 340 are both provided with mounting grooves, and the mounting grooves of the horizontal section and the vertical section of the L-shaped resistance block 340 are respectively rotatably connected with a pressure roller 350 and a resistance roller 360, and the telescopic length of the second hydraulic telescopic cylinder 310 is adjusted so that the pressure roller 350 and the resistance roller 360 of the horizontal section and the vertical section of the L-shaped resistance block 340 respectively resist the end face of the flange 10 and the inner wall of the flange 10, thereby realizing the positioning function of the inner diameter of the flange 10.

[0066] Reference Figure 1 , Figure 5 and Figure 6 The milling and slotting mechanism 60 includes a first lifting mechanism 610 installed on the outer side wall of the clamping arm 410, the lifting end of the first lifting mechanism 610 is fixedly connected to the third hydraulic telescopic cylinder 620, the telescopic end of the third hydraulic telescopic cylinder 620 is fixedly connected to the first assembly plate 630, a servo motor 640 is installed on the top of the first assembly plate 630, the output end of the servo motor 640 passes through the first assembly plate 630 and extends downward, and the output end of the servo motor 640 is detachably connected to a milling cutter 650;

[0067] A negative pressure collecting assembly 660 is also fixedly connected to the top of the first assembly plate 630. The negative pressure collecting assembly 660 includes a collecting box 661 installed on one side of the first assembly plate 630. A negative pressure pump 662 is fixedly connected to the top of the collecting box 661. A collecting pipe 663 is connected between the positive pressure end of the negative pressure pump 662 and the feed port of the collecting box 661. A symmetrically distributed electric telescopic rod 664 is fixedly connected to the bottom of the first assembly plate 630. The telescopic end of the electric telescopic rod 664 is fixedly connected to a protective cover 665 covering the outside of the milling cutter 650. An annular absorption pipe 666 is fixedly connected to the outer wall of the protective cover 665. A suction port is provided at the junction of the annular absorption pipe 666 and the protective cover 665. A negative pressure pipe 667 is connected between the negative pressure end of the negative pressure pump 662 and the annular absorption pipe 666. Replace the designated milling cutter 650 with a negative pressure pipe 667. 0, then adjust the driving screw 612 on the first lifting mechanism 610 to drive the lifting seat 614 to move up and down along the sliding rod 613, and adjust the position of the first assembly plate 630 by telescoping the third hydraulic telescopic cylinder 620, so that the milling cutter 650 reaches the specified operating position, and at the same time, the electric telescopic rod 664 is telescoping, so that the protective cover 665 covers the outside of the milling cutter 650, and the main driving wheel 520 is turned on, and the flange 10 is driven to rotate under the friction between the main driving wheel 520 and the outer edge of the flange 10, and the servo motor 640 is turned on to drive the milling cutter 650 to rotate, and the flange 10 in the rotating state is slotted, and at the same time, the negative pressure pump 662 is turned on, and the negative pressure pump 662 generates negative pressure at the suction port of the annular absorption pipe 666 through the negative pressure pipe 667, and the debris generated during the slotting process is collected into the collection box 661;

[0068] The first lifting mechanism 610 includes a vertically arranged mounting frame 611 fixedly mounted on the outer side wall of the clamping arm 410 , on which a driving screw rod 612 and a sliding rod 613 are mounted, and the outer side wall of the driving screw rod 612 is threadedly connected with a lifting seat 614 that slidably cooperates with the sliding rod 613 .

[0069] Reference Figure 1 and Figure 7The magnetic coating spraying mechanism 70 includes a second lifting mechanism 710 fixedly mounted on the outer side wall of the clamping arm 410, a lifting end of the second lifting mechanism 710 is fixedly connected to a fourth hydraulic telescopic cylinder 720, a telescopic end of the fourth hydraulic telescopic cylinder 720 is fixedly connected to a second assembly plate 730, a sprayer 740 is fixedly connected to the top of the second assembly plate 730, an output end of the sprayer 740 is fixedly connected to a spraying main pipe 750 extending downward through the second assembly plate 730, and the spraying main pipe 750 is remote A transverse tube 760 is fixedly connected to one end of the second assembly plate 730, and evenly distributed nozzles 770 are fixedly installed at the bottom of the transverse tube 760. The nozzles 770 are provided with solenoid valves 780. The lifting height of the second lifting mechanism 710 and the telescopic length of the fourth hydraulic telescopic cylinder 720 are adjusted, the position of the nozzle 770 is adjusted, and then the solenoid valve 780 on the corresponding nozzle 770 is opened according to the spraying range, and then the sprayer 740 is turned on to spray the magnetic suction groove 130 opened by the milling grooving mechanism 60.

[0070] Reference Figure 1 and Figure 8 The waste liquid collecting mechanism 80 includes a third lifting mechanism 810 fixedly mounted on the outer side wall of the clamping arm 410, the lifting end of the third lifting mechanism 810 is fixedly connected to a fifth hydraulic telescopic cylinder 820, the telescopic end of the fifth hydraulic telescopic cylinder 820 is fixedly connected to a recovery box 830, the top of the recovery box 830 is fixedly connected to a liquid pump 840, a reflux pipe 850 is connected between the liquid outlet end of the liquid pump 840 and the feed port of the recovery box 830, the bottom of the recovery box 830 is fixedly connected to a vertical rod 860, the end of the vertical rod 860 away from the recovery box 830 is fixedly connected to an inclined plate 870, the outer side wall of the inclined plate 870 is also fixedly connected to an arc plate 880, and the liquid pump 840 is fixedly connected to the outer side wall of the recovery box 830. The liquid inlet end is fixedly connected with a liquid inlet pipe 890, and the end of the liquid inlet pipe 890 away from the liquid pump 840 is fixedly connected to the inner wall of the arc plate 880 near the bottom end. When adjusting the second lifting mechanism 710, the third lifting mechanism 810 and the fifth hydraulic telescopic cylinder 820 are adjusted to adjust the position of the inclined plate 870 so that it matches the clearance of the flange 10. Then, during the rotation of the flange 10, the inclined plate 870 scrapes the coating overflowing from the magnetic suction groove 130 to the arc plate 880. At the same time, the liquid pump 840 is turned on to pump the excess spray liquid accumulated at the arc plate 880 into the recovery box 830 through the liquid inlet pipe 890, so as to realize the recovery of waste liquid and ensure the flatness of the magnetic suction layer 140.

[0071] Working principle: First, select suitable metal alloy billets, use electric furnace steelmaking, and melt the metal alloy billets at 4000 degrees; the metal alloy billets after high-temperature melting are put into the furnace and kept at 100-1200 degrees. After keeping the temperature for 5-6 hours, they are forged, the oxide scale is removed, and pre-formed; the obtained pre-formed metal alloy billets are forged at 900-1000 degrees for terminal forming, and the final forging temperature is controlled above 900 degrees. When it is lower than this temperature, the number of fires must be increased to control the forging ratio ≥4.5; then the alloy billets after terminal forming are trimmed and The trimmed metal alloy blank is kept at a temperature of 1100-1200°C for 6-7h; the obtained metal alloy blank is heat treated at a temperature range of 1100-1200 degrees and a holding time of 33-40 minutes, and then the metal alloy blank is cooled to 33-40 degrees within 10 minutes to obtain a flange blank; the flange blank is then subjected to structural hardening treatment, kept at 800-850 degrees for 7 hours, and then cooled with the furnace to about 450-550 degrees, and then kept in this temperature range for 6 hours, and then cooled to room temperature in air;

[0072] The boss 110 of the hardened flange is pressed against the top of the rotating ring 220, and then the first hydraulic telescopic cylinder 460 is turned on to retract. When the first hydraulic telescopic cylinder 460 is retracted, the distance between the slider 240 and the fixed plate 420 becomes smaller, thereby driving the threaded rod 250 and the clamping arm 410 connected thereto to approach the flange 10 placed on the rotating ring 220. When the threaded rod 250 connected to the first hydraulic telescopic cylinder 460 approaches the direction of the flange 10, the driven rod 450 connected thereto is driven to rotate, thereby driving the cross transmission plate 440 to rotate. At this time, the angle between the driven rod 450 and the cross transmission plate 440 becomes smaller, thereby driving The angles between the other driven rods 450 connected to the cross transmission plate 440 become smaller, so that the four groups of threaded rods 250 are simultaneously close to the flange 10, thereby driving the clamping arm 410 and the U-shaped frame 510 to move toward the direction close to the flange 10, and finally the main driving wheel 520 and the driven wheel 530 are in contact with the outer edge of the flange 10, so as to realize the centering clamping function of the outer diameter of the flange 10; then the extension length of the second hydraulic telescopic cylinder 310 is adjusted, so that the pressure roller 350 and the contact roller 360 of the horizontal section and the vertical section of the L-shaped contact block 340 respectively contact the end face of the flange 10 and the inner wall of the flange 10, so as to realize the positioning function of the inner diameter of the flange 10;

[0073] According to the size of the groove to be cut, the designated milling cutter 650 is replaced, and then the driving screw 612 on the first lifting mechanism 610 is adjusted to drive the lifting seat 614 to rise and fall along the sliding rod 613. The third hydraulic telescopic cylinder 620 is extended and retracted to adjust the position of the first assembly plate 630 so that the milling cutter 650 reaches the designated operating position. At the same time, the electric telescopic rod 664 is extended and retracted so that the protective cover 665 covers the outside of the milling cutter 650. The main driving wheel 520 is turned on, and the flange 10 is driven to rotate under the friction between the main driving wheel 520 and the outer edge of the flange 10. At the same time, the servo motor 640 is turned on to drive the milling cutter 650 to rotate, and the flange 10 in the rotating state is grooved. At the same time, the negative pressure pump 662 is turned on. The negative pressure pump 662 generates negative pressure at the suction port of the annular absorption tube 666 through the negative pressure tube 667, and the debris generated during the groove cutting process is collected into the collection box 661.

[0074] By adjusting the lifting height of the second lifting mechanism 710 and the telescopic length of the fourth hydraulic telescopic cylinder 720, the position of the nozzle 770 is adjusted, and then the solenoid valve 780 on the corresponding nozzle 770 is opened according to the spraying range, and then the sprayer 740 is turned on to spray the magnetic suction groove 130 opened by the milling grooving mechanism 60; while adjusting the second lifting mechanism 710, the third lifting mechanism 810 and the fifth hydraulic telescopic cylinder 820 are adjusted to adjust the position of the inclined plate 870 so that it is in clearance with the flange 10, and then during the rotation of the flange 10, the inclined plate 870 scrapes the coating overflowing from the magnetic suction groove 130 to the arc plate 880, and at the same time, the liquid pump 840 is turned on to pump the excess spray liquid accumulated at the arc plate 880 into the recovery box 830 through the liquid inlet pipe 890, so as to realize the recovery of waste liquid and ensure the flatness of the magnetic suction layer 140.

[0075] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A production device for a large-diameter high-pressure flange, the large-diameter high-pressure flange comprising a flange (10), one end surface of the flange (10) being provided with a boss (110), one end surface of the flange (10) being away from the boss (110) being provided with a sealing groove (120), one end surface of the flange (10) being away from the boss (110) being provided with a magnetic attraction groove (130), the magnetic attraction groove (130) being filled with a magnetic attraction layer (140), the side of the magnetic attraction layer (140) being away from the magnetic attraction groove (130) being flush with the end surface of the flange (10), the outer side wall of the flange (10) being close to the outer edge being provided with evenly distributed mounting holes (150); a sealing ring being installed in the sealing groove (120), a reinforcing plate (160) being connected between the outer side wall of the boss (110) and the end surface of the flange (10), characterized in that: The large-diameter high-pressure flange is produced using a large-diameter high-pressure flange production device, the production device comprising a mounting box (20) with a hollow inner cavity and limiting grooves (210) opened on the top of the mounting box (20) and evenly arranged, and also comprising: A rotating ring (220), the rotating ring (220) being rotatably connected to the top center of the installation box (20); An inner diameter positioning mechanism (30), the inner diameter positioning mechanism (30) being fixedly mounted at the top center of the installation box (20) and used for positioning the inner diameter of the flange (10), and the inner diameter positioning mechanism (30) passing through the rotating ring (220); A centering clamping mechanism (40), the centering clamping mechanism (40) being mounted on the inner wall of the bottom of the mounting box (20) and being used to clamp the outer diameter of the flange (10), the clamping end of the centering clamping mechanism (40) being connected to a clamping arm (410) that slidably cooperates with the limiting groove (210); A rotation adjustment mechanism (50), the rotation adjustment mechanism (50) being mounted on the top end of the clamping arm (410) and used to drive the flange (10) to rotate; A milling slotting mechanism (60), the milling slotting mechanism (60) being mounted on one of the assembly clamp arms (410) and used for opening a sealing slot (120) and a magnetic attraction slot (130) on the flange (10); A magnetic coating spraying mechanism (70), the magnetic coating spraying mechanism (70) being mounted on a clamping arm (410) adjacent to the milling slotting mechanism (60) and being used for spraying a neodymium iron boron magnetic material into the magnetic suction slot (130); A waste liquid collection mechanism (80), the waste liquid collection mechanism (80) being mounted on a clamping arm (410) adjacent to the magnetic coating spraying mechanism (70); the centering clamping mechanism (40) comprising a fixing plate (420) fixedly mounted at the bottom center of the installation box (20), a positioning rod (430) being fixedly connected at the top center of the fixing plate (420), an outer side wall of the positioning rod (430) being rotatably connected to a cross transmission plate (440), an end of the cross transmission plate (440) being rotatably connected to a driven rod (450), and a slide groove (230) being provided on the bottom inner wall of the installation box (20), the slide groove (230) A slider (240) is slidably connected inside, a threaded rod (250) is rotatably connected to the top of the slider (240), and the threaded rod (250) is rotatably connected to an end of a driven rod (450) away from the cross transmission plate (440), a first hydraulic telescopic cylinder (460) is connected between the slider (240) and the fixed plate (420), and the clamping arm (410) is threadedly matched with the threaded rod (250); the rotation adjustment mechanism (50) comprises a U-shaped frame (510) fixedly mounted on the top of the clamping arm (410), and a main driving wheel (520) and a driven wheel (530) are respectively mounted on the vertical sections of the U-shaped frame (510); The top end of the threaded rod (250) is fixedly connected to a connecting rod (260), the connecting rod (260) passes through the U-shaped frame (510) and extends upward, and the extended end of the connecting rod (260) is fixedly connected to a handle (270); the inner diameter positioning mechanism (30) comprises a second hydraulic telescopic cylinder (310) fixedly mounted at the top center of the mounting box (20), the telescopic end of the second hydraulic telescopic cylinder (310) is fixedly connected to a mounting plate (320), the outer edge of the mounting plate (320) is rotatably connected to a resistance rod (330), the end of the resistance rod (330) away from the mounting plate (320) is rotatably connected to an L-shaped resistance block (340), and the horizontal section and the vertical section of the L-shaped resistance block (340) are both provided with a mounting plate. The L-shaped abutment block (340) is provided with a pressure roller (350) and an abutment roller (360) which are rotatably connected in the installation grooves of the horizontal section and the vertical section of the L-shaped abutment block (340); the milling slotting mechanism (60) comprises a first lifting mechanism (610) installed on the outer side wall of the clamping arm (410); the lifting end of the first lifting mechanism (610) is fixedly connected to a third hydraulic telescopic cylinder (620); the telescopic end of the third hydraulic telescopic cylinder (620) is fixedly connected to a first assembly plate (630); a servo motor (640) is installed on the top of the first assembly plate (630); the output end of the servo motor (640) passes through the first assembly plate (630) and extends downward; the output end of the servo motor (640) is detachably connected to a milling cutter (650); A negative pressure collection component (660) is also fixedly connected to the top of the first assembly plate (630), and the negative pressure collection component (660) comprises a collection box (661) mounted on one side of the first assembly plate (630). A negative pressure pump (662) is fixedly connected to the top of the collection box (661), and a collection pipe (663) is connected between the positive pressure end of the negative pressure pump (662) and the feed inlet of the collection box (661). The bottom of the first assembly plate (630) is fixedly connected to There are symmetrically distributed electric telescopic rods (664), the telescopic ends of the electric telescopic rods (664) are fixedly connected to a protective cover (665) covering the outside of the milling cutter (650), the outer wall of the protective cover (665) is fixedly connected to an annular absorption tube (666), a suction port is provided at the intersection of the annular absorption tube (666) and the protective cover (665), and a negative pressure tube (667) is connected between the negative pressure end of the negative pressure pump (662) and the annular absorption tube (666); The first lifting mechanism (610) comprises a vertically arranged mounting frame (611) fixedly mounted on the outer side wall of the clamping arm (410), a driving screw rod (612) and a sliding rod (613) being mounted on the mounting frame (611), and a lifting seat (614) slidably matched with the sliding rod (613) being threadedly connected to the outer side wall of the driving screw rod (612); the magnetic coating spraying mechanism (70) comprises a second lifting mechanism (710) fixedly mounted on the outer side wall of the clamping arm (410), a lifting end of the second lifting mechanism (710) being fixedly mounted A fourth hydraulic telescopic cylinder (720) is connected, the telescopic end of the fourth hydraulic telescopic cylinder (720) is fixedly connected to a second assembly plate (730), the top of the second assembly plate (730) is fixedly connected to a sprayer (740), the output end of the sprayer (740) is fixedly connected to a spraying main pipe (750) extending downward through the second assembly plate (730), the end of the spraying main pipe (750) away from the second assembly plate (730) is fixedly connected to a transverse pipe (760), and the bottom of the transverse pipe (760) is fixedly installed with a uniform distribution The waste liquid collecting mechanism (80) comprises a third lifting mechanism (810) fixedly mounted on the outer wall of the clamping arm (410), the lifting end of the third lifting mechanism (810) is fixedly connected to a fifth hydraulic telescopic cylinder (820), the telescopic end of the fifth hydraulic telescopic cylinder (820) is fixedly connected to a recovery box (830), the top of the recovery box (830) is fixedly connected to a liquid pump (840), and the liquid outlet end of the liquid pump (840) is connected to the recovery box (830). A reflux pipe (850) is connected between the feed ports of the box (830); a vertical rod (860) is fixedly connected to the bottom of the recovery box (830); an end of the vertical rod (860) away from the recovery box (830) is fixedly connected to an inclined plate (870); an outer wall of the inclined plate (870) is also fixedly connected to an arc-shaped plate (880); a liquid inlet end of the liquid pump (840) is fixedly connected to a liquid inlet pipe (890); an end of the liquid inlet pipe (890) away from the liquid pump (840) is fixedly connected to the inner wall of the arc-shaped plate (880) near the bottom.

2. The method for using the large-diameter high-pressure flange production equipment according to claim 1, characterized in that: The following steps are involved: S1: The boss (110) of the flange is pressed against the top of the rotating ring (220), and then the first hydraulic telescopic cylinder (460) is turned on to retract. When the first hydraulic telescopic cylinder (460) is retracted, the distance between the slider (240) and the fixed plate (420) is reduced, thereby driving the threaded rod (250) and the clamping arm (410) connected thereto to approach the flange (10) placed on the rotating ring (220). When the threaded rod (250) connected to the first hydraulic telescopic cylinder (460) approaches the direction of the flange (10), it drives the driven rod (450) connected thereto to rotate, thereby The cross transmission plate (440) is driven to rotate, and the angle between the driven rod (450) and the cross transmission plate (440) is reduced, thereby driving the angle between other driven rods (450) connected to the cross transmission plate (440) to be reduced, so that the four groups of threaded rods (250) are simultaneously moved toward the flange (10), thereby driving the clamping arm (410) and the U-shaped frame (510) to move toward the flange (10), and finally the main driving wheel (520) and the driven wheel (530) are in contact with the outer edge of the flange (10), thereby realizing the centering clamping function of the outer diameter of the flange (10); S2: Then, the extension length of the second hydraulic telescopic cylinder (310) is adjusted so that the pressure roller (350) and the contact roller (360) of the horizontal section and the vertical section of the L-shaped contact block (340) contact the end surface of the flange (10) and the inner side wall of the flange (10) respectively, thereby realizing the positioning function of the inner diameter of the flange (10); S3: According to the required slot size, replace the designated milling cutter (650), then adjust the driving screw (612) on the first lifting mechanism (610) to drive the lifting seat (614) to move up and down along the slide bar (613), and adjust the position of the first assembly plate (630) by telescoping the third hydraulic telescopic cylinder (620) so that the milling cutter (650) reaches the designated operating position. At the same time, the electric telescopic rod (664) is telescoped so that the protective cover (665) covers the outside of the milling cutter (650), and the main drive is turned on. The driving wheel (520) drives the flange (10) to rotate under the action of the friction between the main driving wheel (520) and the outer edge of the flange (10), and at the same time, the servo motor (640) is turned on to drive the milling cutter (650) to rotate, so as to slot the flange (10) in the rotating state, and at the same time, the negative pressure pump (662) is turned on to generate negative pressure at the suction port of the annular absorption pipe (666) through the negative pressure pipe (667), so as to collect the debris generated during the slotting process into the collection box (661); S4: adjusting the lifting height of the second lifting mechanism (710) and the telescopic length of the fourth hydraulic telescopic cylinder (720), adjusting the position of the spray head (770), then opening the solenoid valve (780) on the corresponding spray head (770) according to the spraying range, and then turning on the sprayer (740) to spray the magnetic suction groove (130) opened by the milling groove mechanism (60); S5: While adjusting the second lifting mechanism (710), the third lifting mechanism (810) and the fifth hydraulic telescopic cylinder (820) are adjusted to adjust the position of the inclined plate (870) so that the inclined plate (870) is matched with the flange (10) in a clearance manner. Then, during the rotation of the flange (10), the inclined plate (870) scrapes the coating overflowing from the magnetic suction groove (130) to the curved plate (880). At the same time, the liquid pump (840) is turned on to pump the excess spray liquid accumulated at the curved plate (880) into the recovery box (830) through the liquid inlet pipe (890), thereby realizing the recovery of the waste liquid and ensuring the flatness of the magnetic suction layer (140).

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