Grinding device for end part of mechanical sealing element

Abstract

The utility model belongs to the technical field of mechanical sealing elements, and particularly relates to a mechanical sealing element end grinding device which comprises a working table, and a first grinding mechanism and a second grinding mechanism are arranged on the surface of the working table. According to the end grinding device for the mechanical sealing element, the sealing element needing to be ground is placed on the surface of the fixing plate, corresponding structures are linked through the action of a first telescopic air cylinder, and therefore the sealing element on the surface of the fixing plate is clamped through two semicircular clamping blocks, and the sealing element is just matched with clamping openings of the semicircular clamping blocks; the stability during grinding is improved; and after the end part of one surface of the sealing element is ground, the sealing element is grabbed by the second grinding mechanism and conveyed to the surface of the second grinding disc, so that the end part of the other surface of the sealing element can be ground by the second grinding disc, the situation that the sealing element needs to be turned over manually is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical seal technology, specifically to a mechanical seal end grinding device. Background Technology

[0002] Mechanical seals, as important sealing elements, play a crucial role in preventing media leakage and ensuring the normal operation of many industrial devices. The flatness and roughness of their ends, as well as the fitting precision with mating parts, directly affect the sealing effect.

[0003] Currently, there are many problems in the grinding process of mechanical seal ends. Traditional manual grinding methods rely on workers to hand-grind the seal on tools such as grinding wheels. This is not only inefficient, but also makes it difficult to ensure grinding accuracy. It is easy to have large deviations in end flatness and uneven surface roughness, resulting in poor sealing performance of the seal in actual use and the potential for media leakage.

[0004] To address this problem, we propose a mechanical seal end grinding device. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device for the end of a mechanical seal to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mechanical seal end grinding device, comprising a worktable, a support column and a support base, wherein the support column is fixedly installed on the bottom surface of the worktable, the support base is fixedly installed on the bottom end of the support column, and the surface of the worktable is provided with a first grinding mechanism and a second grinding mechanism.

[0007] The first grinding mechanism includes a first clamping unit and a first grinding unit. The first clamping unit includes a fixed plate, a first slide rail, a second slide rail, a first slide block, a second slide block, a semi-circular clamping block, a connecting block, a first connecting rod, a first mounting plate, and a first telescopic cylinder. The fixed plate is fixedly installed on the surface of the worktable. The first slide rail is fixedly installed on the surface of the fixed plate. The second slide rail is fixedly installed on the surface of the fixed plate. The first and second slide rails are perpendicularly distributed on the surface of the fixed plate. The first slide block is slidably installed on the surface of the first slide rail. The second slide block is slidably mounted on the surface of the second slide rail. The semi-circular clamping block is fixedly mounted on the surface of the second slide block. The connecting block is mounted on the side of the semi-circular clamping block. One end of the first connecting rod is rotatably mounted on the surface of the connecting block, and the other end of the first connecting rod is rotatably mounted on the surface of the first slide block. Multiple structures are linked together through the connection of the first connecting rod. The first mounting plate is fixedly mounted on the side of the fixing plate. The first telescopic cylinder is fixedly mounted on the surface of the first mounting plate, and the output end of the first telescopic cylinder is connected to the side of the first slide block.

[0008] Preferably, the first grinding unit includes a motor mounting base, a first drive motor, a worm gear, a rotating rod, a worm wheel, a second mounting plate, a second telescopic cylinder, a mounting frame, a first grinding motor, and a first grinding disc. The motor mounting base is fixedly mounted on the worktable surface, the first drive motor is fixedly mounted on the surface of the motor mounting base, the worm gear is connected to the output end of the first drive motor, the rotating rod is rotatably mounted on the worktable surface, the worm wheel is mounted on the outer surface of the rotating rod and meshes with the outer surface of the worm gear, the second mounting plate is mounted on the top of the rotating rod, the second telescopic cylinder is fixedly mounted on the surface of the second mounting plate, the mounting frame is connected to the output end of the second telescopic cylinder, the first grinding motor is fixedly mounted on the inner surface of the mounting frame, and the first grinding disc is connected to the output end of the first grinding motor.

[0009] Preferably, the second grinding mechanism includes a moving unit, a second clamping unit, and a second grinding unit. The moving unit includes a third slide rail, a third slide block, a rack, a third mounting plate, a second drive motor, a gear, a third telescopic cylinder, and a connecting plate. The third slide rail is fixedly installed on the surface of the worktable, the third slide block is slidably installed on the surface of the third slide rail, the rack is fixedly installed on the side of the worktable, the third mounting plate is fixedly installed on the side of the third slide block, the second drive motor is fixedly installed on the surface of the third mounting plate, the gear is connected to the output end of the second drive motor, the gear is meshed with the surface of the rack, the third telescopic cylinder is fixedly installed on the surface of the third slide block, and the connecting plate is connected to the output end of the third telescopic cylinder.

[0010] Preferably, the second clamping unit includes a triangular mounting bracket, a third drive motor, a connecting turntable, a fourth slide rail, a fourth slide block, a fourth mounting plate, a clamping block, and a second connecting rod. The triangular mounting bracket is fixedly mounted on one end of the connecting plate, the third drive motor is fixedly mounted on the surface of the triangular mounting bracket, the connecting turntable is connected to the output end of the third drive motor, the fourth slide rail is fixedly mounted on the other surface of the triangular mounting bracket, the fourth slide block is slidably mounted on the surface of the fourth slide rail, the fourth mounting plate is fixedly mounted on the surface of the fourth slide block, the clamping block is fixedly mounted on the surface of the fourth mounting plate, one end of the second connecting rod is rotatably mounted on the surface of the fourth mounting plate, and the other end of the second connecting rod is rotatably mounted on the surface of the connecting turntable. By rotating the connecting turntable, the clamping block moves toward the sealing element, thereby clamping it.

[0011] Preferably, the second grinding unit includes a second grinding motor, a circular mounting plate, a telescopic damping column, a spring, and a second grinding disc. The second grinding motor is fixedly mounted on the bottom surface of the worktable. The circular mounting plate is connected to the output end of the second grinding motor. The telescopic damping column is mounted on the surface of the circular mounting plate. The spring is mounted on the surface of the circular mounting plate and sleeved on the outer surface of the telescopic damping column. The second grinding disc is mounted on the top of the telescopic damping column. Since the sealing element is supported by a third telescopic cylinder, instability may occur during grinding, and the grinding effect is not as stable as when the first clamping unit is using the grinding disc. Therefore, the spring needs to extend and retract according to the magnitude and direction of the reaction force. The telescopic damping column ensures that the second grinding disc can float and adjust smoothly, so that the second grinding disc can always act on the surface of the sealing element with the best contact angle and pressure.

[0012] Preferably, a grinding table is fixedly installed on the surface of the worktable, and a through hole is opened on the surface of the grinding table. The circular mounting plate, the telescopic damping column, the spring, and the second grinding disc are distributed inside the through hole, and a storage frame is fixedly installed on the surface of the worktable.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The mechanical seal end grinding device places the seal to be ground on the surface of a fixed plate. The action of the first telescopic cylinder causes the corresponding structure to move in tandem, so that the two semi-circular clamping blocks clamp the seal on the surface of the fixed plate, making the seal fit perfectly with the clamping opening of the semi-circular clamping blocks, thus improving the stability during grinding.

[0015] 2. The mechanical seal end grinding device, after one end of the seal is ground, picks up the seal through the second grinding mechanism and transports it to the surface of the second grinding disc, so that the other end of the seal can be ground, avoiding the need for manual flipping of the seal and improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the first clamping unit structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the first grinding unit structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the mobile unit structure of this utility model;

[0020] Figure 5This is a schematic diagram of the second clamping unit structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the second grinding unit structure of this utility model;

[0022] Figure 7 This is a side view of the structure of this utility model.

[0023] In the diagram: 101. Worktable; 102. Support column; 103. Support base; 104. Grinding table; 105. Through hole; 106. Storage frame; 201. Fixing plate; 202. No. 1 slide rail; 203. No. 2 slide rail; 204. No. 1 slide block; 205. No. 2 slide block; 206. Semi-circular clamping block; 207. Connecting block; 208. No. 1 connecting rod; 209. No. 1 mounting plate; 210. No. 1 telescopic cylinder; 301. Motor mounting base; 302. No. 1 drive motor; 303. Worm gear; 304. Rotating rod; 305. Worm wheel; 306. No. 2 mounting plate; 307. No. 2 telescopic cylinder; 308. Mounting frame; 3 09. Grinding motor No. 1; 310. Grinding disc No. 1; 401. Slide rail No. 3; 402. Slide base No. 3; 403. Rack; 404. Mounting plate No. 3; 405. Drive motor No. 2; 406. Gear; 407. Telescopic cylinder No. 3; 408. Connecting plate; 501. Triangular mounting bracket; 502. Drive motor No. 3; 503. Connecting turntable; 504. Slide rail No. 4; 505. Slide base No. 4; 506. Mounting plate No. 4; 507. Clamping block; 508. Connecting rod No. 2; 601. Grinding motor No. 2; 602. Circular mounting plate; 603. Telescopic damping column; 604. Spring; 605. Grinding disc No. 2. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-7 This utility model provides a technical solution:

[0026] Example 1

[0027] Traditional manual grinding methods, relying on workers to hand-grind the seals on grinding wheels or other tools, are not only inefficient but also struggle to guarantee grinding precision, often resulting in large deviations in end flatness and uneven surface roughness. This embodiment provides a mechanical seal end grinding device, please refer to... Figures 1-7This embodiment provides a mechanical seal end grinding device that ensures grinding accuracy and avoids issues such as large deviations in end flatness and uneven surface roughness. The mechanical seal end grinding device includes a worktable 101, a support column 102, and a support base 103. The support column 102 is fixedly installed on the bottom surface of the worktable 101, and the support base 103 is fixedly installed on the bottom end of the support column 102. The worktable 101 surface is provided with a first grinding mechanism and a second grinding mechanism. When initially grinding the seal, the first grinding mechanism grinds it; when grinding the other end of the seal is required, the second grinding mechanism grinds it, avoiding manual intervention.

[0028] Traditional manual grinding, which relies on workers to hand-grind the seals on tools such as grinding wheels, is not only inefficient but also makes it difficult to guarantee grinding precision, easily resulting in large deviations in end flatness and uneven surface roughness. Therefore, this device is equipped with a first grinding mechanism, which includes a first clamping unit and a first grinding unit. The first clamping unit includes a fixed plate 201, a first slide rail 202, a second slide rail 203, a first slide block 204, a second slide block 205, a semi-circular clamping block 206, a connecting block 207, a first connecting rod 208, a first mounting plate 209, and a first telescopic cylinder 210. The fixed plate 201 is fixedly installed on the surface of the worktable 101, the first slide rail 202 is fixedly installed on the surface of the fixed plate 201, and the second slide rail 203 is fixedly installed on the surface of the fixed plate 201. 1. On the surface, slide rail 202 and slide rail 203 are vertically distributed on the surface of fixed plate 201. Slide seat 204 is slidably installed on the surface of slide rail 202, slide seat 205 is slidably installed on the surface of slide rail 203, semi-circular clamping block 206 is fixedly installed on the surface of slide seat 205, connecting block 207 is installed on the side of semi-circular clamping block 206, one end of connecting rod 208 is rotatably installed on the surface of connecting block 207, and the other end of connecting rod 208 is rotatably installed on the surface of slide seat 204. Multiple structures are linked by the connection of connecting rod 208. Mounting plate 209 is fixedly installed on the side of fixed plate 201, telescopic cylinder 210 is fixedly installed on the surface of mounting plate 209, and the output end of telescopic cylinder 210 is connected to the side of slide seat 204.

[0029] After the seal is clamped and fixed, grinding is performed by the first grinding unit of the device. The first grinding unit includes a motor mounting base 301, a first drive motor 302, a worm gear 303, a rotating rod 304, a worm wheel 305, a second mounting plate 306, a second telescopic cylinder 307, a mounting frame 308, a first grinding motor 309, and a first grinding disc 310. The motor mounting base 301 is fixedly mounted on the surface of the worktable 101, the first drive motor 302 is fixedly mounted on the surface of the motor mounting base 301, and the worm gear 303 is connected to the first drive motor 309. The output end of the motor 302, the rotating rod 304 is rotatably mounted on the surface of the worktable 101, the worm gear 305 is mounted on the outer surface of the rotating rod 304, the worm gear 305 is meshed with the outer surface of the worm 303, the second mounting plate 306 is mounted on the top of the rotating rod 304, the second telescopic cylinder 307 is fixedly mounted on the surface of the second mounting plate 306, the mounting frame 308 is connected to the output end of the second telescopic cylinder 307, the first grinding motor 309 is fixedly mounted on the inner surface of the mounting frame 308, and the first grinding disc 310 is connected to the output end of the first grinding motor 309.

[0030] Example 2

[0031] Based on Example 1, such as Figures 1-7 As shown, when one end of the seal is ground, grinding the other end is required. Manually flipping the seal would reduce work efficiency. Therefore, the device also includes a second grinding mechanism. This second grinding mechanism comprises a moving unit, a second clamping unit, and a second grinding unit. The moving unit includes a third slide rail 401, a third slide block 402, a rack 403, a third mounting plate 404, a second drive motor 405, a gear 406, a third telescopic cylinder 407, and a connecting plate 408. The third slide rail 401 is fixedly mounted on the worktable. On surface 101, slide block 402 is slidably mounted on slide rail 401, rack 403 is fixedly mounted on the side of workbench 101, mounting plate 404 is fixedly mounted on the side of slide block 402, drive motor 405 is fixedly mounted on mounting plate 404, gear 406 is connected to the output end of drive motor 405, gear 406 is meshed with rack 403, telescopic cylinder 407 is fixedly mounted on slide block 402, and connecting plate 408 is connected to the output end of telescopic cylinder 407.

[0032] The second clamping unit includes a triangular mounting bracket 501, a third drive motor 502, a connecting turntable 503, a fourth slide rail 504, a fourth slide block 505, a fourth mounting plate 506, a clamping block 507, and a second connecting rod 508. The triangular mounting bracket 501 is fixedly mounted on one end of the connecting plate 408. The third drive motor 502 is fixedly mounted on the surface of the triangular mounting bracket 501. The connecting turntable 503 is connected to the output end of the third drive motor 502. The fourth slide rail 504 is fixedly mounted on the triangular mounting bracket 501. On the other surface of the mounting bracket 501, slide block 505 is slidably mounted on slide rail 504, mounting plate 506 is fixedly mounted on slide block 505, clamping block 507 is fixedly mounted on mounting plate 506, one end of connecting rod 508 is rotatably mounted on mounting plate 506, and the other end of connecting rod 508 is rotatably mounted on connecting turntable 503. By rotating the connecting turntable 503, clamping block 507 moves toward the seal, thereby clamping it.

[0033] Since the seal is supported by the No. 3 telescopic cylinder 407, instability may occur during grinding. Therefore, the device also includes a second grinding unit. The second grinding unit includes a No. 2 grinding motor 601, a circular mounting plate 602, a telescopic damping column 603, a spring 604, and a No. 2 grinding disc 605. The No. 2 grinding motor 601 is fixedly mounted on the bottom surface of the worktable 101. The circular mounting plate 602 is connected to the output end of the No. 2 grinding motor 601. The telescopic damping column 603 is mounted on the surface of the circular mounting plate 602. The spring 604 is mounted on the surface of the circular mounting plate 602 and sleeved on the outer surface of the telescopic damping column 603. The grinding disc 605 is mounted on the top of the telescopic damping column 603. A grinding table 104 is fixedly mounted on the surface of the worktable 101. A through hole 105 is opened on the surface of the grinding table 104. The circular mounting disc 602, the telescopic damping column 603, the spring 604, and the second grinding disc 605 are distributed inside the through hole 105. A storage frame 106 is fixedly mounted on the surface of the worktable 101. The spring 604 expands and contracts according to the magnitude and direction of the reaction force. The telescopic damping column 603 ensures that the second grinding disc 605 can float and adjust smoothly, so that the second grinding disc 605 can always act on the surface of the sealing component with the best contact angle and pressure.

[0034] Working principle: In use, the seal is placed on the surface of the fixed plate 201. The first telescopic cylinder 210 is activated, causing the first slide block 204 to slide on the surface of the first slide rail 202. Through the connection of the first connecting rod 208, the two semi-circular clamping blocks 206 move towards each other under the action of the second slide rail 203 and the second slide block 205, clamping the seal on the surface of the fixed plate 201. Then, the first drive motor 302 is activated, driving the worm gear 303 to rotate, causing the worm wheel 305, which meshes with the worm gear 303, to actuate. Since the worm wheel 305 is mounted on the outer surface of the rotating rod 304... This causes the rotating rod 304 to rotate on the surface of the worktable 101, thereby moving the first grinding disc 310 above the seal. The second telescopic cylinder 307 is then activated, lowering the first grinding disc 310 to the surface of the seal. The first grinding motor 309 is then activated, causing the first grinding disc 310 to grind the seal. After grinding, the first drive motor 302 and the first grinding motor 309 move the first grinding disc 310 away from the seal. The first telescopic cylinder 210 releases the semi-circular clamping block 206 from the seal. Finally, the second drive motor 405 is activated, driving the gears... Rotation of 406, through the meshing relationship of rack 403, causes the third slide block 402 to move on the surface of the third slide rail 401, moving the second clamping mechanism above the seal. Then, the third telescopic cylinder 407 lowers the second clamping mechanism to the surface of the seal, activating the third drive motor 502 to drive the connecting turntable 503 to rotate. This causes the fourth mounting plate 506, connected to the connecting turntable 503 via the second connecting rod 508, to slide on the surface of the fourth slide rail 504 via the fourth slide block 505. This causes the clamping blocks 507 on the surface of the fourth mounting plate 506 to clamp the seal. The action of the No. 3 telescopic cylinder 407 and the No. 2 drive motor 405 causes the seal to move to the surface of the No. 2 grinding disc 605. The No. 2 grinding motor 601 is started so that the No. 2 grinding disc 605 grinds the other end of the seal. The telescopic damping column 603 and spring 604 under the No. 2 grinding disc 605 can act on the seal with the best contact angle and pressure evenly. After grinding is completed, the No. 3 telescopic cylinder 407 and the No. 2 drive motor 405 transfer the seal after grinding on both ends to the storage frame 106.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A mechanical seal end face grinding device, comprising a workbench (101), a support column (102) and a support seat (103), the support column (102) is fixedly installed on the bottom surface of the workbench (101), and the support seat (103) is fixedly installed on the bottom end of the support column (102), characterized in that: The workbench (101) surface is provided with a first grinding mechanism and a second grinding mechanism; The first grinding mechanism comprises a first clamping unit and a first grinding unit, the first clamping unit comprises a fixed plate (201), a first slide rail (202), a second slide rail (203), a first sliding seat (204), a second sliding seat (205), a semicircular clamping block (206), a connecting block (207), a first connecting rod (208), a first mounting plate (209), a first telescopic cylinder (210), the fixed plate (201) is fixedly installed on the surface of the workbench (101), the first slide rail (202) is fixedly installed on the surface of the fixed plate (201), the second slide rail (203) is fixedly installed on the surface of the fixed plate (201), the first slide rail (202) and the second slide rail (203) are vertically distributed on the surface of the fixed plate (201), the first sliding seat (204) is slidingly installed on the surface of the first slide rail (202), the second sliding seat (205) is slidingly installed on the surface of the second slide rail (203), the semicircular clamping block (206) is fixedly installed on the surface of the second sliding seat (205), the connecting block (207) is installed on the side surface of the semicircular clamping block (206), one end of the first connecting rod (208) is rotatably installed on the surface of the connecting block (207), the other end of the first connecting rod (208) is rotatably installed on the surface of the first sliding seat (204), the first mounting plate (209) is fixedly installed on the side surface of the fixed plate (201), and the first telescopic cylinder (210) is fixedly installed on the surface of the first mounting plate (209).

2. A mechanical seal end grinding device according to claim 1, wherein: The first grinding unit comprises a motor mounting seat (301), a first drive motor (302), a worm (303), a rotating rod (304), a worm gear (305), a second mounting plate (306), a second telescopic cylinder (307), a mounting frame (308), a first grinding motor (309), and a first grinding disc (310), the motor mounting seat (301) is fixedly installed on the surface of the workbench (101), the first drive motor (302) is fixedly installed on the surface of the motor mounting seat (301), the worm (303) is connected to the output end of the first drive motor (302), the rotating rod (304) is rotatably installed on the surface of the workbench (101), the worm gear (305) is installed on the outer surface of the rotating rod (304), the worm gear (305) is meshingly connected to the outer surface of the worm (303), the second mounting plate (306) is installed on the top end of the rotating rod (304), the second telescopic cylinder (307) is fixedly installed on the surface of the second mounting plate (306), the mounting frame (308) is connected to the output end of the second telescopic cylinder (307), the first grinding motor (309) is fixedly installed on the inner surface of the mounting frame (308), and the first grinding disc (310) is connected to the output end of the first grinding motor (309).

3. A mechanical seal end grinding device as claimed in claim 1, wherein: The second grinding mechanism comprises a moving unit, a second clamping unit and a second grinding unit, the moving unit comprises No. 3 slide rail (401), No. 3 slide base (402), rack (403), No. 3 mounting plate (404), No. 2 driving motor (405), gear (406), No. 3 telescopic air cylinder (407), connecting plate (408), the No. 3 slide rail (401) is fixedly installed on the surface of the work table (101), the No. 3 slide base (402) is slidably installed on the surface of the No. 3 slide rail (401), the rack (403) is fixedly installed on the side surface of the work table (101), the No. 3 mounting plate (404) is fixedly installed on the side surface of the No. 3 slide base (402), the No. 2 driving motor (405) is fixedly installed on the surface of the No. 3 mounting plate (404), the gear (406) is connected to the output end of the No. 2 driving motor (405), the gear (406) is meshedly connected to the surface of the rack (403), the No. 3 telescopic air cylinder (407) is fixedly installed on the surface of the No. 3 slide base (402), and the connecting plate (408) is connected to the output end of the No. 3 telescopic air cylinder (407).

4. A mechanical seal end grinding device as claimed in claim 3, wherein: The second clamping unit comprises triangular mounting frame (501), No. 3 driving motor (502), connecting turntable (503), No. 4 slide rail (504), No. 4 slide base (505), No. 4 mounting plate (506), clamping block (507), No. 2 connecting rod (508), the triangular mounting frame (501) is fixedly installed on one end of the connecting plate (408), the No. 3 driving motor (502) is fixedly installed on the surface of the triangular mounting frame (501), the connecting turntable (503) is connected to the output end of the No. 3 driving motor (502), the No. 4 slide rail (504) is fixedly installed on the other surface of the triangular mounting frame (501), the No. 4 slide base (505) is slidably installed on the surface of the No. 4 slide rail (504), the No. 4 mounting plate (506) is fixedly installed on the surface of the No. 4 slide base (505), the clamping block (507) is fixedly installed on the surface of the No. 4 mounting plate (506), one end of the No. 2 connecting rod (508) is rotatably installed on the surface of the No. 4 mounting plate (506), and the other end of the No. 2 connecting rod (508) is rotatably installed on the surface of the connecting turntable (503).

5. A mechanical seal end grinding device as claimed in claim 3, wherein: The second grinding unit comprises No. 2 grinding motor (601), circular mounting disc (602), telescopic damping column (603), spring (604) and No. 2 grinding disc (605), the No. 2 grinding motor (601) is fixedly installed on the bottom surface of the work table (101), the circular mounting disc (602) is connected to the output end of the No. 2 grinding motor (601), the telescopic damping column (603) is installed on the surface of the circular mounting disc (602), the spring (604) is installed on the surface of the circular mounting disc (602), the spring (604) is sleeved on the outer surface of the telescopic damping column (603), and the No. 2 grinding disc (605) is installed on the top end of the telescopic damping column (603).

6. A mechanical seal end grinding device as claimed in claim 5, wherein: The workbench (101) surface is fixedly provided with a grinding table (104), the grinding table (104) is provided with a through hole (105), the circular mounting disc (602), the telescopic damping column (603), the spring (604) and the second grinding disc (605) are distributed in the through hole (105), and the workbench (101) surface is fixedly provided with a storage frame (106).

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