Explosion-proof sealing flange structure and polishing machining technology

Abstract

The invention belongs to the technical field of flange polishing, and particularly relates to a polishing machining process of an anti-explosion sealing flange structure, the polishing machining process is realized based on a polishing device of the anti-explosion sealing flange structure, the polishing device comprises an anti-explosion sealing flange main body, and the anti-explosion sealing flange main body is composed of a flange plate and a sealing joint; and the working table top is in a circular shape, and a rotating mechanism is installed on the working table top. According to the anti-explosion sealing device, a first working motor works to drive a small light-weight gear to rotate and then drive a large light-weight gear to rotate, a flange positioning mechanism can rotate along with the large light-weight gear due to the fact that a mounting base is fixed to the large light-weight gear, and an anti-explosion sealing flange body rotates due to the fact that the anti-explosion sealing flange body is fixed by a side clamp; the sealing connector rotates along the balls in the annular sliding groove, then the rotating grinding disc can grind all the positions of the upper end face of the flange plate, and therefore the grinding quality and efficiency are improved.

Description

Technical Field

[0001] The invention relates to an explosion-proof sealing flange structure, and in particular to an explosion-proof sealing flange structure and a grinding process. Background Art

[0002] Flange, also called flange flange or flange, is a part that connects shafts to each other and is used to connect pipe ends. It is also used for flanges at the inlet and outlet of equipment and is used to connect two devices, such as reducer flanges. Flange connection or flange joint refers to a detachable connection that is connected by flanges, gaskets and bolts as a combined sealing structure. Pipe flange refers to the flange used for piping in pipeline devices. When used on equipment, it refers to the inlet and outlet flanges of the equipment. Flanges need to go through multiple processes during the production process, including deburring the flange to ensure the quality of use, especially the sealing and safety of the flange.

[0003] For example, the Chinese utility model patent with the announcement number CN216859268U discloses a flange end face grinding device, including a chassis, a rotating drive structure, a flange fixing plate structure, and a grinding structure. A fixing plate body is fixedly provided at the upper end of the rotating column, and a plurality of claws for fixing the flange are provided on the fixing plate body. By rotating the adjusting plate, the plurality of claws can be driven to move at the same time so that the inner ring of the flange is clamped on the fixing plate body, which is conducive to fixing flanges of different diameters. In the prior art, when clamping the flange, the clamping mechanism is mostly inserted into the hole in the center of the flange to fix the flange. When grinding the end face, this method can only grind one of the end faces of the flange, and the other side needs to be unfixed first, manually reversed, and then beaten, thereby reducing the efficiency of beating, and the center hole of some flanges does 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 process. Summary of the invention

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

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

[0007] A grinding process for an explosion-proof sealing flange structure is implemented based on a grinding device for an explosion-proof sealing flange structure, the grinding device comprising:

[0008] An explosion-proof sealing flange body, wherein the explosion-proof sealing flange body is composed of a flange plate and a sealing joint;

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

[0010] A flange placement plate, the flange placement plate is fixedly installed at the center of the top of the work surface, and a circular groove is opened at the center of the top of the flange placement plate, an annular groove is opened at the bottom of the circular groove, and a plurality of balls are rollingly installed in the annular groove, and the sealing joint of the explosion-proof sealing flange body is placed in the annular groove;

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

[0012] An electric telescopic rod, wherein two electric telescopic rods are provided and are respectively fixedly mounted on both sides of the top of the work surface;

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

[0014] A grinding mechanism, wherein the grinding mechanism is mounted on the displacement mechanism and is used for polishing 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 slide groove to obtain a preliminary limit position;

[0017] S2. Fix the flange plate 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 slide groove;

[0018] S3. Adjust the position of the grinding mechanism, and then make the grinding mechanism work 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 rotate the explosion-proof sealing flange body, so that the grinding mechanism can grind to various positions of the flange end surface;

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

[0021] Preferably, the sealing joint is fixedly mounted on the bottom of the flange, and a plurality of mounting holes are provided on the flange, an external connection hole is provided on the side of the flange, and a pressure reducing pipe is fixedly mounted in the external connection hole, a pressure relief valve and a pressure sensor are installed on the pressure reducing pipe, and the pressure relief valve and the pressure sensor are electrically connected to an external PLC controller, and an inner through hole communicating with the external connection hole is provided on the inner side of the sealing joint.

[0022] Preferably, the rotating 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 work table, and the output end of the first working motor is fixedly connected to the small lightweight gear. The outer side of the flange placement plate is provided with a large lightweight gear for limited rotation, and the large lightweight gear is meshed 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 a ring array are fixedly mounted on the large lightweight gear, and a linear guide rail is fixedly mounted on the top of each mounting seat. A rail groove is provided on the top of the linear guide rail, and a moving block is slidably mounted in the rail groove. A guide rod is fixedly connected to the moving block, and the guide rod is slidably mounted on the linear guide rail. A side clamp is fixedly connected to one end of the guide rod facing the explosion-proof sealing flange body, that is, the side clamp is located outside the linear guide rail, and an electromagnet is fixedly mounted on the 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 mounted on the top of the movable seat, and the output end of the second working motor extends to the bottom of the movable seat and is fixedly connected to the grinding disc, and the grinding disc is located above the explosion-proof sealing flange body.

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

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

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

[0028] Preferably, a plurality of first drainage holes distributed in a circular array are provided at the bottom of the circular groove, and a first filter net is embedded in the first drainage hole. A second drainage hole is provided at the center of the bottom of the circular groove, and a second filter net is embedded in the second drainage hole. Both the first drainage hole and the second drainage hole pass through the work surface.

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

[0030] (I) In the present application, the sealing joint of the explosion-proof sealing flange body to be processed is placed downwards in an annular slide groove, and supported by balls so that the explosion-proof sealing flange body is placed stably and initially limited. The electromagnet is energized so that the electromagnet and the moving block are magnetically repelled, and then the moving block drives the guide rod to move away from the electromagnet, so that the side clamps can support and fix the side of the flange. The limiting of the four side clamps can make the fixation of the explosion-proof sealing flange body more accurate, avoid deviation, and ensure the accuracy of subsequent grinding.

[0031] (ii) In the present application, after the explosion-proof sealing flange body is fixed, the adjusting hand wheel is turned to make the second bevel gear drive the first bevel gear to rotate, and then the screw is adjusted to rotate to make the movable seat slide along the parallel rod until the grinding disc moves to the top of the flange, and the second working motor is operated to rotate the grinding disc. 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. It is easy to operate and can also be used for the grinding operation of the lower end surface of the flange.

[0032] (III) In the present application, during grinding, the first working motor works, which 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 therewith. Since the explosion-proof sealing flange body is fixed by the side clamp, the explosion-proof sealing flange body rotates, and the sealing joint rotates along the ball in the annular groove. Then the rotating grinding disc can grind to all positions on the upper end surface of the flange to improve the grinding quality and efficiency.

[0033] (IV) In this application, during grinding, the external water supply device can be connected to the water pipe joint so that the grinding water can be delivered 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 flange, further ensuring the quality of the grinding process.

[0034] (V) In this application, the explosion-proof sealing flange body will be put into use after the grinding process is completed. When in use, the internal through hole on the sealing joint is connected with the external hole on the flange plate, so that the pressure inside the explosion-proof sealing flange body is the same as the pressure in the pressure reducing pipe. When the pressure is too high, the pressure relief valve opens to reduce the pressure inside the explosion-proof sealing flange body, avoiding the loss of the explosion-proof sealing flange body or even scrapping, extending the service life, and ensuring safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0037] Figure 3 The figure shows the connection stereogram of the flange and the sealing joint;

[0038] Figure 4 Shown Figure 1 The schematic diagram after removing the electric telescopic rod and displacement mechanism;

[0039] Figure 5 Shown Figure 1 Schematic diagram of the displacement mechanism and grinding mechanism in FIG.

[0040] Figure 6 Shown Figure 5 The enlarged schematic diagram of point A in the middle;

[0041] Figure 7 Shown Figure 4 Schematic diagram after removing the explosion-proof sealing flange body;

[0042] Figure 8 Shown is a stereoscopic view of a movable seat in the grinding process 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-internal through hole; 103-pressure reducing pipe; 104-pressure relief valve; 105-pressure sensor;

[0045] 2-working table; 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 slide groove; 304-ball; 305-second filter screen;

[0047] 4-flange positioning mechanism; 401-mounting seat; 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 slot; 603-adjusting screw rod; 604-parallel rod; 605-first bevel gear; 606-second bevel gear; 607-adjusting hand wheel;

[0050] 7-grinding mechanism; 701-movable seat; 702-second working motor; 703-grinding disc; 704-positioning seat; 705-water pipe joint. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figure 1-8 , the present invention provides the following embodiments:

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

[0054] The explosion-proof sealing flange body 1 is composed of a flange plate 101 and a sealing joint 102;

[0055] A work surface 2, which is circular and has a rotating mechanism installed on it, and the rotating mechanism is used to drive the explosion-proof sealing flange body 1 to rotate;

[0056] The flange placing plate 3 is fixedly installed at the center of the top of the work surface 2, and a circular groove 301 is opened at the center of the top of the flange placing plate 3, and an annular groove 303 is opened at the bottom of the circular groove 301, and a plurality of balls 304 are rollingly installed in the annular groove 303, and the sealing joint 102 of the explosion-proof sealing flange body 1 is placed in the annular groove 303;

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

[0058] The electric telescopic rod 5 is provided with two electric telescopic rods 5, which are respectively fixedly mounted on both sides of the top of the work surface 2;

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

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

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

[0062] S1, facing downward the sealing joint 102 of the explosion-proof sealing flange body 1 to be processed, and placing it in the annular slide groove 303 to obtain a preliminary limit position;

[0063] S2. Fix the flange plate 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 slide groove 303;

[0064] S3, adjusting 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 sealing flange body 1;

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

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

[0067] Specifically, the sealing joint 102 is fixedly installed on the bottom of the flange 101, and a plurality of mounting holes are opened on the flange 101, an external hole 1011 is opened on the side of the flange 101, and a pressure reducing pipe 103 is fixedly installed in the external hole 1011, a pressure relief valve 104 and a pressure sensor 105 are installed on the pressure reducing pipe 103, and the pressure relief valve 104 and the pressure sensor 105 are electrically connected to the external PLC controller, and an internal through hole 1021 communicating with the external hole 1011 is opened on the inner side of 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 work table 2, and the output end of the first working motor 201 is fixedly connected to the small lightweight gear 202. The outer side of the flange placement plate 3 is rotationally limited with a large lightweight gear 203, and the large lightweight gear 203 is meshed with the small lightweight gear 202.

[0069] Specifically, the flange positioning mechanism 4 includes a mounting seat 401, a linear guide 402, a rail groove 403, a moving block 404, a guide rod 405, a side clamp 406 and an electromagnet 407. Four mounting seats 401 distributed in a ring array are fixedly installed on the large lightweight gear 203. A linear guide 402 is fixedly installed on the top of each mounting seat 401. A rail groove 403 is opened on the top of the linear guide 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 on the linear guide 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 402, and an electromagnet 407 is fixedly installed on the side of the linear guide 402 away from the side clamp 406. The moving block 404 is a magnetic block, and the moving block 404 cooperates 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 to the bottom of 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 inlaid on 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 a circular array are provided at the bottom of the circular groove 301, and a first filter net 302 is inlaid in the first drainage hole. A second drainage hole is provided at the center of the bottom of the circular groove 301, and a second filter net 305 is inlaid in the second drainage hole. Both the first drainage hole and the second drainage hole pass through the work surface for discharging water for grinding. A plurality of legs (not shown in the figure) can be installed at the bottom of the work surface 1.

[0071] Specifically, the displacement mechanism 6 includes a cross beam 601, a linear slot 602, an adjusting screw 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 slot 602 is provided on the top of the cross beam 601. The adjusting screw 603 is rotatably installed in the linear slot 602, and a parallel rod 604 arranged parallel to the adjusting screw 603 is fixedly installed in the linear slot 602. The movable seat 701 is threadedly installed on the adjusting screw 603 and slidably installed on the parallel rod 604. A mounting opening is provided on the cross beam 601. One end of the adjusting screw 603 extends into the mounting opening and is fixedly connected to a first bevel gear 605. A rotating shaft is rotatably installed on the side wall of the mounting opening, and one end of the rotating shaft extends to the outside of the cross beam 601 and is fixedly connected to an adjusting hand wheel 607. One end of the rotating shaft located in the mounting opening is fixedly connected to a second bevel gear 606, and the first bevel gear 605 is meshed with the second bevel gear 606.

[0072] The specific implementation method of this embodiment is as follows: the sealing joint 102 of the explosion-proof sealing flange body 1 to be processed is placed downward and placed in the annular slide groove 303, and the ball 304 supports it, so that the explosion-proof sealing flange body 1 is placed stably and initially limited, and the electromagnet 407 is energized, so that the electromagnet 407 and the moving block 404 are magnetically repelled, and then the moving block 404 drives the guide rod 405 to move away from the electromagnet 407, so that the side clamp 406 supports and fixes the side of the flange 101. The limiting of the four side clamps 406 can make the fixing of the explosion-proof sealing flange body 1 more accurate, avoid deviation, and ensure the subsequent grinding accuracy;

[0073] After the explosion-proof sealing flange body 1 is fixed, the adjusting hand wheel 607 is turned to make the second bevel gear 606 drive the first bevel gear 605 to rotate, and then the screw rod 603 is adjusted to rotate, so that the movable seat 701 slides along the parallel rod 604 until the grinding disc 703 moves to the top of the flange 101, and the second working motor 702 works to rotate the grinding disc 703. 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. It is easy to operate and can also be used for 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 turn the adjusting hand wheel 607 to move the grinding disc 703 to the bottom of the flange 101);

[0074] During the grinding process, 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 together with it. Since the explosion-proof sealing flange body 1 is fixed by the side clamp, the explosion-proof sealing flange body 1 rotates, and the sealing joint 102 rotates along the ball 304 in the annular groove 303. Then the rotating grinding disc 703 can grind to all positions of the upper end surface of the flange 101 to improve the grinding quality and efficiency.

[0075] During grinding, the external water supply device can be connected to the water pipe joint 705, so that the grinding water can be delivered to the flange 101, which can not only wash away the grinding dirt, but also cool the grinding disc 703 and the flange 101, further ensuring the grinding quality;

[0076] The explosion-proof sealing flange body 1 after grinding will be put into use. When in use, since the inner through hole 1021 on the sealing joint 102 is connected with the external hole 1011 on the flange plate 101, the pressure inside the explosion-proof sealing flange 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 body 1, avoiding the explosion-proof sealing flange body 1 from being damaged or even scrapped, thereby extending the service life and ensuring safety and reliability.

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

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

Claims

1. A grinding process for an explosion-proof sealing flange structure, characterized in that: The grinding device is based on an explosion-proof sealing flange structure, and the grinding device includes: An explosion-proof sealing flange body (1), wherein the explosion-proof sealing flange body (1) is composed of a flange plate (101) and a sealing joint (102); A work surface (2), the work surface (2) is circular, and a rotating mechanism is installed on the work surface (2), and the rotating mechanism is used to drive the explosion-proof sealing flange body (1) to rotate; A flange placement plate (3), the flange placement plate (3) being fixedly mounted at the center of the top of the work surface (2), and a circular groove (301) being provided at the center of the top of the flange placement plate (3), an annular slide groove (303) being provided at the bottom of the circular groove (301), and a plurality of balls (304) being rollingly mounted in the annular slide groove (303), and a sealing joint (102) of the explosion-proof sealing flange body (1) being placed in the annular slide groove (303); A flange positioning mechanism (4), the flange positioning mechanism (4) is used to fix the flange plate (101) of the explosion-proof sealing flange body (1), and the flange positioning mechanism (4) is composed of a moving block (404), a guide rod (405), a side clamp (406) and an electromagnet (407), one end of the guide rod (405) facing the explosion-proof sealing flange body (1) is fixedly connected to the side clamp (406), the moving block (404) is a magnetic block, and the moving block (404) cooperates with the electromagnet (407); An electric telescopic rod (5), wherein two electric telescopic rods (5) are provided and are respectively fixedly mounted on two sides of the top of the work surface (2); A displacement mechanism (6), wherein the displacement mechanism (6) is installed at the output end of the electric telescopic rod (5); A grinding mechanism (7), wherein the grinding mechanism (7) is mounted on the displacement mechanism (6), and the grinding mechanism (7) is used to polish the explosion-proof sealing flange body (1); The specific steps of the grinding process are as follows: S1. Place the sealing joint (102) of the explosion-proof sealing flange body (1) to be processed downward in the annular slide groove (303) to obtain a preliminary limit position; S2. Fixing the flange plate (101) of the explosion-proof sealing flange body (1) by means of the flange positioning mechanism (4) so ​​that the explosion-proof sealing flange body (1) can move along the annular slide groove (303); S3, adjusting the position of the grinding mechanism (7), and then operating the grinding mechanism (7) to grind the upper end surface of the flange plate (101) of the explosion-proof sealing flange body (1); S4, the rotating mechanism works, which drives the flange positioning mechanism (4) to rotate, that is, it can rotate the explosion-proof sealing flange body (1), so that the grinding mechanism (7) can grind to various positions of the end surface of the flange plate (101); S5. After polishing is completed, take out the explosion-proof sealing flange body (1) and repeat the above steps.

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

3. The grinding process of the explosion-proof sealing flange structure according to claim 2 is characterized in that: The rotating mechanism comprises a first working motor (201), a small lightweight gear (202) and a large lightweight gear (203); the first working motor (201) is fixedly mounted on the top of the working table (2), and the output end of the first working motor (201) is fixedly connected to the small lightweight gear (202); the large lightweight gear (203) is mounted on the outer side of the flange placement plate (3) for limited rotation, and the large lightweight gear (203) is meshed with the small lightweight gear (202).

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

5. The grinding process of the explosion-proof sealing flange structure according to claim 4 is characterized in that: The grinding mechanism (7) comprises a movable seat (701), a second working motor (702) and a grinding disc (703); the second working motor (702) is fixedly mounted on the top of the movable seat (701); and an output end of the second working motor (702) extends to the bottom of 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 the explosion-proof sealing flange structure according to claim 5 is characterized in that: The displacement mechanism (6) comprises a cross beam (601), a linear slot (602), an adjustment screw rod (603) and a parallel rod (604); the cross beam (601) is fixedly mounted on the output end of the electric telescopic rod (5); a linear slot (602) is provided on the top of the cross beam (601); an adjustment screw rod (603) is rotatably mounted in the linear slot (602); and a parallel rod (604) arranged parallel to the adjustment screw rod (603) is fixedly mounted in the linear slot (602); the movable seat (701) is threadedly mounted on the adjustment screw rod (603) and slidably mounted on the parallel rod (604).

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

8. The grinding process of the explosion-proof sealing flange structure according to claim 6 is characterized in that: The cross beam (601) is provided with a mounting opening, one end of the adjusting screw rod (603) extends into the mounting opening and is fixedly connected to a first bevel gear (605), a rotating shaft is rotatably mounted on a side wall of the mounting opening, one end of the rotating shaft extends outside the cross beam (601) and is fixedly connected to an adjusting hand wheel (607), one end of the rotating shaft located in the mounting opening is fixedly connected to a second bevel gear (606), and the first bevel gear (605) is meshed with the second bevel gear (606).

9. The grinding process of the explosion-proof sealing flange structure according to claim 7, characterized in that: The bottom of the circular groove (301) is provided with a plurality of first drainage holes distributed in a circular array, and a first filter net (302) is embedded in the first drainage hole; a second drainage hole is provided at the center of the bottom of the circular groove (301), and a second filter net (305) is embedded in the second drainage hole; and both the first drainage hole and the second drainage hole penetrate the work surface.

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