An explosion-proof sealing flange structure and a grinding and processing technology

Abstract

This application belongs to the technical field of flange grinding, and in particular relates to a grinding process for an explosion-proof sealed flange structure, which is realized based on a grinding device for an explosion-proof sealed flange structure. The grinding device includes: an explosion-proof sealed flange main body, which is composed of a flange plate and a sealing joint; a workbench surface, which is circular, and a rotating mechanism is installed on the workbench surface. In the present invention, when the first working motor operates, it will drive the small lightweight gear to rotate, and then drive the large lightweight gear to rotate. Since the mounting seat is fixed on the large lightweight gear, the flange positioning mechanism can rotate along with it. Also, since the explosion-proof sealed flange main body is fixed by the side fixture, the explosion-proof sealed flange main body rotates on its own axis, and the sealing joint rotates along the balls in the annular chute. Then, the rotating grinding disc can grind all positions on the upper end surface of the flange plate, so as to improve the grinding quality and efficiency.

Description

Technical Field

[0001] The present invention relates to an explosion-proof sealing flange structure, and more particularly to an explosion-proof sealing flange structure and a grinding and processing technology. Background Art

[0002] A flange, also known as a flange boss or a collar, is a part used to connect shafts to each other and is used for connecting pipe ends; it is also used for flanges at the inlets and outlets of equipment for connecting two pieces of equipment, such as a reducer flange. A flange connection or a flange joint refers to a detachable connection structure composed of a flange, a gasket, and bolts. Pipe flanges refer to the flanges used in piping systems of pipe installations, and flanges used on equipment refer to the inlet and outlet flanges of the equipment. During the production process of flanges, multiple processes are required, including deburring the flanges to ensure the quality of use, especially regarding the sealing performance and safety of the flanges.

[0003] For example, the Chinese utility model patent with the publication number CN216859268U discloses a flange end face grinding device, which includes a chassis, and also includes a rotation driving structure, a flange fixing disk structure, and a grinding structure. A fixing disk body is fixedly provided at the upper end of a rotating column, and a plurality of claws for fixing the flange are provided on the fixing disk body. By rotating the adjusting disk, multiple claws can be driven to move simultaneously to clamp the inner ring of the flange on the fixing disk body, which is beneficial for fixing flanges with different diameters. In the prior art, when clamping a flange disk, most often the clamping mechanism is inserted into the central hole of the flange to fix the flange. When grinding the end face in this way, only one end face of the flange can be ground, and for the other end face, the fixing needs to be cancelled first, manually reversed, and then ground, which reduces the grinding efficiency, and some central holes of the flanges do not support the entry of the clamping parts.

[0004] In view of this, the present invention designs an explosion-proof sealing flange structure and a grinding and processing technology. Summary of the Invention

[0005] The main purpose of the present disclosure is to provide an explosion-proof sealing flange structure and a grinding and processing technology to effectively solve the problems raised by the inventor in the above background art.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A grinding and processing technology for an explosion-proof sealing flange structure is realized based on a grinding device for an explosion-proof sealing flange structure. The grinding device includes:

[0008] An explosion-proof sealing flange main body, which is composed of a flange disk and a sealing joint;

[0009] The workbench surface, the workbench surface is circular, and a rotating mechanism is installed on the workbench surface, and the rotating mechanism is used to drive the explosion-proof sealing flange body to rotate;

[0010] The flange placement plate, the flange placement plate is fixedly installed at the center of the top of the workbench surface, and a circular groove is opened at the center of the top of the flange placement plate. An annular sliding groove is opened at the bottom of the circular groove, and a number of balls are rollingly installed in the annular sliding groove. The sealing joint of the explosion-proof sealing flange body is placed in the annular sliding groove;

[0011] The flange positioning mechanism, the flange positioning mechanism is used to fix the flange of the explosion-proof sealing flange body;

[0012] The electric telescopic rods, there are two electric telescopic rods, which are respectively fixedly installed on both sides of the top of the workbench surface;

[0013] The displacement mechanism, the displacement mechanism is installed at the output end of the electric telescopic rod;

[0014] The grinding mechanism, the grinding mechanism is installed on the displacement mechanism, and the grinding mechanism is used to polish the explosion-proof sealing flange body;

[0015] The specific steps of the grinding process are as follows:

[0016] S1. Place the sealing joint of the explosion-proof sealing flange body to be processed downward and place it in the annular sliding groove to obtain preliminary positioning;

[0017] S2. Fix the flange of the explosion-proof sealing flange body through the flange positioning mechanism, so that the explosion-proof sealing flange body can move along the annular sliding groove;

[0018] S3. Adjust the position of the grinding mechanism, and then the grinding mechanism works to grind the upper end surface of the flange of the explosion-proof sealing flange body;

[0019] S4. The rotating mechanism works, which will drive the flange positioning mechanism to rotate, that is, it can drive the explosion-proof sealing flange body to rotate, so that the grinding mechanism can grind all positions of the flange end surface;

[0020] S5. After grinding, take out the explosion-proof sealing flange body, and repeat the above operation steps.

[0021] Preferably, the sealing joint is fixedly installed at the bottom of the flange, and a number of mounting holes are opened on the flange. An external connection hole is opened on the side of the flange, and a decompression pipe is fixedly installed in the external connection hole. A pressure relief valve and a pressure sensor are installed on the decompression pipe, and both the pressure relief valve and the pressure sensor are electrically connected to an external PLC controller. An inner through hole communicating with the external connection hole is opened inside the sealing joint.

[0022] Preferably, the rotation mechanism includes a first working motor, a small lightweight gear, and a large lightweight gear. The first working motor is fixedly installed on the top of the workbench surface, and the output end of the first working motor is fixedly connected to the small lightweight gear. The large lightweight gear is rotatably installed on the outer side of the flange placement plate in a limited manner, and the large lightweight gear meshes with the small lightweight gear.

[0023] Preferably, the flange positioning mechanism includes a mounting seat, a linear guide rail, a rail groove, a moving block, a guide rod, a side clamp, and an electromagnet. Four mounting seats distributed in an annular array are fixedly installed on the large lightweight gear. A linear guide rail is fixedly installed on the top of each mounting seat. A rail groove is formed in the top of the linear guide rail, and a moving block is slidably installed in the rail groove. A guide rod is fixedly connected to the moving block, and the guide rod is slidably installed through the linear guide rail. One end of the guide rod facing the explosion-proof sealing flange body is fixedly connected to the side clamp, that is, the side clamp is located outside the linear guide rail. An electromagnet is fixedly installed on one side of the linear guide rail away from the side clamp. The moving block is a magnetic block, and the moving block cooperates with the electromagnet.

[0024] Preferably, the grinding mechanism includes a movable seat, a second working motor, and a grinding disc. The second working motor is fixedly installed on the top of the movable seat, and the output end of the second working motor extends below the movable seat and is fixedly connected to the grinding disc. The grinding disc is located above the explosion-proof sealing flange body.

[0025] Preferably, the displacement mechanism includes a cross beam, a linear groove, an adjusting screw rod, and a parallel rod. The cross beam is fixedly installed on the output end of the electric telescopic rod. A linear groove is formed in the top of the cross beam. The adjusting screw rod is rotatably installed in the linear groove, and a parallel rod parallel to the adjusting screw rod is fixedly installed in the linear groove. The movable seat is threadedly installed on the adjusting screw rod and slidably installed on the parallel rod.

[0026] Preferably, a positioning seat is fixedly installed on the cross beam, and a water pipe joint is embedded in the positioning seat. The water pipe joint is used to connect an external water supply device.

[0027] Preferably, an installation opening is formed in the cross beam. One end of the adjusting screw rod extends into the installation opening and is fixedly connected to a first bevel gear. A rotating shaft is rotatably installed on the side wall of the installation opening. One end of the rotating shaft extends outside the cross beam and is fixedly connected to an adjusting handwheel. A second bevel gear is fixedly connected to the end of the rotating shaft located in the installation opening, and the first bevel gear meshes with the second bevel gear.

[0028] Preferably, a plurality of first drain holes distributed in an annular array are formed in the bottom of the circular groove, and a first filter screen is embedded in the first drain holes. A second drain hole is formed in the center of the bottom of the circular groove, and a second filter screen is embedded in the second drain hole. Both the first drain hole and the second drain hole penetrate through the workbench surface.

[0029] In view of this, compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] (1). In this application, the sealing joint of the explosion-proof sealing flange body to be processed is placed downward and put into the annular sliding groove. The ball bearings support it to make the explosion-proof sealing flange body placed stably and obtain preliminary positioning. The electromagnet is powered on, so that the electromagnet and the moving block are magnetically repulsive. Then the moving block drives the guide rod to move away from the electromagnet, so that the side clamp clamps and fixes the side surface of the flange. The positioning of the four side clamps can make the fixation of the explosion-proof sealing flange body more accurate, avoid deviation, and guarantee the accuracy of subsequent grinding.

[0031] (2). In this application, after the explosion-proof sealing flange body is fixed, the adjusting handwheel is rotated to make the second bevel gear drive the first bevel gear to rotate. Then the adjusting screw rod rotates, and the movable seat slides along the parallel rod until the grinding disc moves above the flange. The second working motor works to make the grinding disc rotate. The electric telescopic rod can control the height of the grinding disc, so that the rotating grinding disc can contact the upper end surface of the flange and perform polishing treatment. It is easy to operate and can also be applied to the grinding operation of the lower end surface of the flange.

[0032] (3). In this application, during grinding, the first working motor works, which drives the small lightweight gear to rotate, and then drives the large lightweight gear to rotate. Since the mounting seat is fixed on the large lightweight gear, the flange positioning mechanism can rotate along with it. And because the explosion-proof sealing flange body is fixed by the side clamps, the explosion-proof sealing flange body rotates automatically, and the sealing joint rotates along the ball bearings in the annular sliding groove. Then the rotating grinding disc can grind all positions of the upper end surface of the flange to improve the grinding quality and efficiency.

[0033] (4). In this application, during grinding, an external water supply device can be connected to the water pipe joint, so that the grinding water can be transported to the flange. On the one hand, it can wash away the grinding dirt, and on the other hand, it can cool the grinding disc and the flange, further guaranteeing the grinding processing quality.

[0034] (5). In this application, the explosion-proof sealing flange body after grinding and processing will be put into use. During use, since the inner through hole on the sealing joint communicates with the external connection hole on the flange plate, the pressure inside the explosion-proof sealing flange body is the same as the pressure inside the decompression pipe. When the pressure is too high, the pressure relief valve opens to decompress the inside of the explosion-proof sealing flange body, preventing the explosion-proof sealing flange body from being damaged or even scrapped, extending its service life, and ensuring safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The figure shows a top view of the grinding and processing technology of the explosion-proof sealing flange structure provided by the present invention;

[0036] Figure 2 The figure shows a top view of the explosion-proof sealing flange body in the grinding and processing technology of the explosion-proof sealing flange structure provided by the present invention;

[0037] Figure 3 The figure shows a three-dimensional connection diagram of the flange plate and the sealing joint;

[0038] Figure 4 The figure shows Figure 1 a schematic diagram after removing the electric telescopic rod and the displacement mechanism in

[0039] Figure 5 The figure shows Figure 1 a schematic diagram of the displacement mechanism and the grinding mechanism in

[0040] Figure 6 The figure shows Figure 5 an enlarged schematic diagram of part A in

[0041] Figure 7 The figure shows Figure 4 a schematic diagram after removing the explosion-proof sealing flange body in

[0042] Figure 8 The figure shows a three-dimensional diagram of the movable seat in the grinding and processing technology of the explosion-proof sealing flange structure provided by the present invention.

[0043] ICON:

[0044] 1 - Explosion-proof sealing flange body; 101 - Flange plate; 1011 - External connection hole; 102 - Sealing joint; 1021 - Inner through hole; 103 - Decompression pipe; 104 - Pressure relief valve; 105 - Pressure sensor;

[0045] 2 - Workbench surface; 201 - First working motor; 202 - Small lightweight gear; 203 - Large lightweight gear;

[0046] 3 - Flange placement plate; 301 - Circular groove; 302 - First filter screen; 303 - Annular sliding groove; 304 - Ball; 305 - Second filter screen;

[0047] 4 - Flange positioning mechanism; 401 - Mounting base; 402 - Linear guide rail; 403 - Rail groove; 404 - Moving block; 405 - Guide rod; 406 - Side clamp; 407 - Electromagnet;

[0048] 5 - Electric telescopic rod;

[0049] 6 - Displacement mechanism; 601 - Cross beam; 602 - Linear groove; 603 - Adjusting screw rod; 604 - Parallel rod; 605 - First bevel gear; 606 - Second bevel gear; 607 - Adjusting handwheel;

[0050] 7 - Grinding mechanism; 701 - Movable seat; 702 - Second working motor; 703 - Grinding disc; 704 - Positioning seat; 705 - Water pipe joint. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0052] Please refer to Figure 1-8 , the present invention provides the following embodiments:

[0053] A grinding process for an explosion-proof sealed flange structure is realized based on a grinding device for an explosion-proof sealed flange structure. The grinding device includes:

[0054] An explosion-proof sealed flange main body 1, which is composed of a flange plate 101 and a sealing joint 102;

[0055] A workbench surface 2, the workbench surface 2 is circular, and a rotating mechanism is installed on the workbench surface 2, and the rotating mechanism is used to drive the explosion-proof sealed flange main body 1 to rotate;

[0056] A flange placement plate 3, which is fixedly installed at the center of the top of the workbench surface 2, and a circular groove 301 is opened at the center of the top of the flange placement plate 3. An annular sliding groove 303 is opened at the bottom of the circular groove 301, and a plurality of balls 304 are installed to roll in the annular sliding groove 303. The sealing joint 102 of the explosion-proof sealed flange main body 1 is placed in the annular sliding groove 303;

[0057] A flange positioning mechanism 4, which is used to fix the flange plate 101 of the explosion-proof sealed flange main body 1;

[0058] Electric telescopic rods 5, there are two electric telescopic rods 5, which are respectively fixedly installed on both sides of the top of the workbench surface 2;

[0059] A displacement mechanism 6, the displacement mechanism 6 is installed at the output end of the electric telescopic rod 5;

[0060] A grinding mechanism 7, the grinding mechanism 7 is installed on the displacement mechanism 6, and the grinding mechanism 7 is used for polishing the explosion-proof sealing flange body 1;

[0061] The specific steps of the grinding process are as follows:

[0062] S1. Place the sealing joint 102 of the explosion-proof sealing flange body 1 to be processed downward and place it in the annular chute 303 to obtain preliminary positioning;

[0063] S2. Fix the flange 101 of the explosion-proof sealing flange body 1 through the flange positioning mechanism 4 so that the explosion-proof sealing flange body 1 can move along the annular chute 303;

[0064] S3. Adjust the position of the grinding mechanism 7, and then the grinding mechanism 7 works to grind the upper end surface of the flange 101 of the explosion-proof sealing flange body 1;

[0065] S4. The rotating mechanism works, which will drive the flange positioning mechanism 4 to rotate, that is, it can drive the explosion-proof sealing flange body 1 to rotate, so that the grinding mechanism 7 can grind all positions of the end surface of the flange 101;

[0066] S5. After grinding, take out the explosion-proof sealing flange body 1 and repeat the above operation steps.

[0067] Specifically, the sealing joint 102 is fixedly installed at the bottom of the flange 101, and a plurality of mounting holes are provided on the flange 101. An external connection hole 1011 is provided on the side of the flange 101, and a decompression pipe 103 is fixedly installed in the external connection hole 1011. A pressure relief valve 104 and a pressure sensor 105 are installed on the decompression pipe 103, and both the pressure relief valve 104 and the pressure sensor 105 are electrically connected to an external PLC controller. An inner through hole 1021 communicating with the external connection hole 1011 is provided inside the sealing joint 102.

[0068] Specifically, the rotating mechanism includes a first working motor 201, a small lightweight gear 202 and a large lightweight gear 203. The first working motor 201 is fixedly installed on the top of the workbench surface 2, and the output end of the first working motor 201 is fixedly connected to the small lightweight gear 202. A large lightweight gear 203 is rotatably installed at the outer limit of the flange placement plate 3, and the large lightweight gear 203 meshes with the small lightweight gear 202.

[0069] Specifically, the flange positioning mechanism 4 includes a mounting base 401, a linear guide rail 402, a rail groove 403, a moving block 404, a guide rod 405, a side clamp 406 and an electromagnet 407. Four mounting bases 401 distributed in an annular array are fixedly installed on the large lightweight gear 203. A linear guide rail 402 is fixedly installed on the top of each mounting base 401. A rail groove 403 is formed in the top of the linear guide rail 402, and a moving block 404 is slidably installed in the rail groove 403. A guide rod 405 is fixedly connected to the moving block 404, and the guide rod 405 is slidably installed through the linear guide rail 402. A side clamp 406 is fixedly connected to one end of the guide rod 405 facing the explosion-proof sealing flange body 1, that is, the side clamp 406 is located outside the linear guide rail 402. An electromagnet 407 is fixedly installed on one side of the linear guide rail 402 away from the side clamp 406. The moving block 404 is a magnetic block and is matched with the electromagnet 407.

[0070] Specifically, the grinding mechanism 7 includes a movable seat 701, a second working motor 702 and a grinding disc 703. The second working motor 702 is fixedly installed on the top of the movable seat 701, and the output end of the second working motor 702 extends below the movable seat 701 and is fixedly connected to the grinding disc 703. The grinding disc 703 is located above the explosion-proof sealing flange body 1. A positioning seat 704 is fixedly installed on the cross beam 601, and a water pipe joint 705 is embedded in the positioning seat 704. The water pipe joint 705 is used to connect an external water supply device. A plurality of first drainage holes distributed in an annular array are formed in the bottom of the circular groove 301, and a first filter screen 302 is embedded in the first drainage holes. A second drainage hole is formed in the center of the bottom of the circular groove 301, and a second filter screen 305 is embedded in the second drainage hole. The first drainage holes and the second drainage hole both penetrate the workbench surface for discharging grinding water. A plurality of legs (not shown in the figure) can be installed at the bottom of the workbench surface 2.

[0071] Specifically, the displacement mechanism 6 includes a cross beam 601, a linear groove 602, an adjusting screw rod 603 and a parallel rod 604. The cross beam 601 is fixedly installed at the output end of the electric telescopic rod 5, and a linear groove 602 is formed in the top of the cross beam 601. An adjusting screw rod 603 is rotatably installed in the linear groove 602, and a parallel rod 604 arranged in parallel with the adjusting screw rod 603 is fixedly installed in the linear groove 602. The movable seat 701 is threadedly installed on the adjusting screw rod 603 and slidably installed on the parallel rod 604. An installation opening is formed in the cross beam 601. One end of the adjusting screw rod 603 extends into the installation opening and is fixedly connected to a first bevel gear 605. A rotating shaft is rotatably installed on the side wall of the installation opening, and one end of the rotating shaft extends outside the cross beam 601 and is fixedly connected to an adjusting handwheel 607. A second bevel gear 606 is fixedly connected to the end of the rotating shaft located in the installation opening, and the first bevel gear 605 meshes with the second bevel gear 606.

[0072] The specific implementation of this embodiment is as follows: Place the sealing joint 102 of the explosion-proof sealing flange main body 1 to be processed downward and put it into the annular chute 303. The ball 304 supports it to make the explosion-proof sealing flange main body 1 placed stably and obtain preliminary positioning. Energize the electromagnet 407 so that the electromagnet 407 repels the moving block 404 magnetically. Then the moving block 404 drives the guide rod 405 to move away from the electromagnet 407, so that the side clamp 406 clamps and fixes the side surface of the flange 101. The positioning of the four side clamps 406 can make the fixation of the explosion-proof sealing flange main body 1 more accurate, avoid deviation, and ensure the accuracy of subsequent grinding;

[0073] After the explosion-proof sealing flange main body 1 is fixed, rotate the adjusting handwheel 607 to make the second bevel gear 606 drive the first bevel gear 605 to rotate. Then the adjusting screw rod 603 rotates, and the movable seat 701 slides along the parallel rod 604 until the grinding disc 703 moves above the flange 101. The second working motor 702 works to make the grinding disc 703 rotate. The electric telescopic rod 5 can control the height of the grinding disc 703, so that the rotating grinding disc 703 can contact the upper end surface of the flange 101 and perform polishing treatment. It is easy to operate and can also be applied to the grinding operation of the lower end surface of the flange 101 (first lower the grinding disc 703 to a height lower than the flange 101, and then rotate the adjusting handwheel 607 to make the grinding disc 703 move directly below the flange 101);

[0074] During grinding, the first working motor 201 works, which drives the small lightweight gear 202 to rotate, and then drives the large lightweight gear 203 to rotate. Since the mounting seat 401 is fixed on the large lightweight gear 203, the flange positioning mechanism 4 can rotate along with it. And because the explosion-proof sealing flange main body 1 is fixed by the side clamp, the explosion-proof sealing flange main body 1 rotates itself, and the sealing joint 102 rotates along the ball 304 in the annular chute 303. Then the rotating grinding disc 703 can grind all positions of the upper end surface of the flange 101 to improve the grinding quality and efficiency;

[0075] When grinding, an external water supply device can be connected to the water pipe joint 705 so that the grinding water can be transported to the flange 101. On the one hand, it can wash away the grinding dirt, and on the other hand, it can cool the grinding disc 703 and the flange 101 to further ensure the grinding processing quality;

[0076] After the grinding process is completed, the explosion-proof sealing flange main body 1 will be put into use. During use, since the inner through hole 1021 on the sealing joint 102 communicates with the external connection hole 1011 on the flange plate 101, the pressure inside the explosion-proof sealing flange main body 1 is the same as the pressure inside the pressure reducing pipe 103. When the pressure is too high, the pressure relief valve 104 opens to reduce the pressure inside the explosion-proof sealing flange main body 1, avoiding wear and tear or even scrapping of the explosion-proof sealing flange main body 1, extending its service life, and being safe and reliable.

[0077] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0078] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A grinding process for an explosion-proof sealed flange structure, characterized in that Realized based on a grinding device with an explosion-proof sealed flange structure, the grinding device comprising: An explosion-proof sealed flange main body (1), the explosion-proof sealed flange main body (1) being composed of a flange plate (101) and a sealing joint (102); A workbench surface (2), the workbench surface (2) being circular, and a rotating mechanism being installed on the workbench surface (2), the rotating mechanism being used to drive the explosion-proof sealed flange main body (1) to rotate; A flange placement plate (3), the flange placement plate (3) being fixedly installed at the center of the top of the workbench surface (2), and a circular groove (301) being opened at the center of the top of the flange placement plate (3), an annular sliding groove (303) being opened at the bottom of the circular groove (301), and a plurality of balls (304) being rotatably installed in the annular sliding groove (303), the sealing joint (102) of the explosion-proof sealed flange main body (1) being placed in the annular sliding groove (303); A flange positioning mechanism (4), the flange positioning mechanism (4) being used to fix the flange plate (101) of the explosion-proof sealed flange main body (1), and the flange positioning mechanism (4) being composed of a moving block (404), a guiding rod (405), a side clamp (406) and an electromagnet (407), a side clamp (406) being fixedly connected to one end of the guiding rod (405) facing the explosion-proof sealed flange main body (1), the moving block (404) being a magnetic block, and the moving block (404) being matched with the electromagnet (407); Electric telescopic rods (5), two electric telescopic rods (5) being provided, and being respectively fixedly installed on both sides of the top of the workbench surface (2); A displacement mechanism (6), the displacement mechanism (6) being installed at the output end of the electric telescopic rod (5); A grinding mechanism (7), the grinding mechanism (7) being installed on the displacement mechanism (6), and the grinding mechanism (7) being used to polish the explosion-proof sealed flange main body (1); The specific steps of the grinding process are as follows: S1. Place the sealing joint (102) of the explosion-proof sealed flange main body (1) to be processed downward and place it in the annular sliding groove (303) to obtain preliminary positioning; S2. Fix the flange plate (101) of the explosion-proof sealed flange main body (1) through the flange positioning mechanism (4) so that the explosion-proof sealed flange main body (1) can move along the annular sliding groove (303); S3. Adjust the position of the grinding mechanism (7), and then the grinding mechanism (7) works to grind the upper end surface of the flange plate (101) of the explosion-proof sealed flange main body (1); S4. The rotating mechanism works, which will drive the flange positioning mechanism (4) to rotate, that is, it can drive the explosion-proof sealed flange main body (1) to rotate, so that the grinding mechanism (7) can grind all positions of the end surface of the flange plate (101); S5. After grinding is completed, take out the explosion-proof sealed flange main body (1), and repeat the above operation steps.

2. The grinding process for an explosion-proof sealed flange structure according to claim 1, characterized in that: The sealing joint (102) is fixedly installed at the bottom of the flange (101), and a plurality of mounting holes are provided on the flange (101). An external connection hole (1011) is provided on the side of the flange (101), and a pressure reducing pipe (103) is fixedly installed in the external connection hole (1011). A pressure relief valve (104) and a pressure sensor (105) are installed on the pressure reducing pipe (103), and both the pressure relief valve (104) and the pressure sensor (105) are electrically connected to an external PLC controller. An inner through hole (1021) communicating with the external connection hole (1011) is provided inside the sealing joint (102).

3. The grinding process of an explosion-proof sealed flange structure according to claim 2, characterized in that: The rotating mechanism includes a first working motor (201), a small lightweight gear (202), and a large lightweight gear (203). The first working motor (201) is fixedly installed at the top of the workbench surface (2), and the output end of the first working motor (201) is fixedly connected to the small lightweight gear (202). A large lightweight gear (203) is rotatably installed outside the flange placement plate (3) in a limited manner, and the large lightweight gear (203) meshes with the small lightweight gear (202).

4. The grinding process of an explosion-proof sealed flange structure according to claim 3, characterized in that: The flange positioning mechanism (4) further includes a mounting seat (401), a linear guide rail (402), and a rail groove (403). Four mounting seats (401) distributed in a circular array are fixedly installed on the large lightweight gear (203). A linear guide rail (402) is fixedly installed on the top of each mounting seat (401). A rail groove (403) is provided on the top of the linear guide rail (402), and a moving block (404) is slidably installed in the rail groove (403). A guide rod (405) is fixedly connected to the moving block (404), and the guide rod (405) is slidably installed through the linear guide rail (402). The side clamp (406) is located outside the linear guide rail (402), and an electromagnet (407) is fixedly installed on the side of the linear guide rail (402) away from the side clamp (406).

5. The grinding process of an explosion-proof sealed flange structure according to claim 4, characterized in that: The grinding mechanism (7) includes a movable seat (701), a second working motor (702), and a grinding disc (703). The second working motor (702) is fixedly installed at the top of the movable seat (701), and the output end of the second working motor (702) extends below the movable seat (701) and is fixedly connected to the grinding disc (703). The grinding disc (703) is located above the explosion-proof sealing flange body (1).

6. The grinding process of an explosion-proof sealed flange structure according to claim 5, characterized in that: The displacement mechanism (6) includes a cross beam (601), a linear groove (602), an adjusting screw rod (603), and a parallel rod (604). The cross beam (601) is fixedly installed at the output end of the electric telescopic rod (5), and a linear groove (602) is provided on the top of the cross beam (601). An adjusting screw rod (603) is rotatably installed in the linear groove (602), and a parallel rod (604) parallel to the adjusting screw rod (603) is fixedly installed in the linear groove (602). The movable seat (701) is threadedly installed on the adjusting screw rod (603) and slidably installed on the parallel rod (604).

7. The grinding process for an explosion-proof sealed flange structure according to claim 6, characterized in that: A positioning seat (704) is fixedly installed on the cross beam (601), and a water pipe joint (705) is embedded in the positioning seat (704). The water pipe joint (705) is used to connect an external water supply device.

8. The grinding process of an explosion-proof sealed flange structure according to claim 6, characterized in that: An installation opening is formed in the cross beam (601). One end of the adjusting screw rod (603) extends into the installation opening and is fixedly connected with a first bevel gear (605). A rotating shaft is rotatably installed on the side wall of the installation opening. One end of the rotating shaft extends outside the cross beam (601) and is fixedly connected with an adjusting handwheel (607). A second bevel gear (606) is fixedly connected to the end of the rotating shaft located inside the installation opening. The first bevel gear (605) meshes with the second bevel gear (606).

9. A grinding process for an explosion-proof sealed flange structure according to claim 7, characterized in that: A plurality of first drain holes distributed in an annular array are formed in the bottom of the circular groove (301), and a first filter screen (302) is embedded in the first drain holes. A second drain hole is formed at the center of the bottom of the circular groove (301), and a second filter screen (305) is embedded in the second drain hole. Both the first drain hole and the second drain hole penetrate through the workbench surface.

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