A polishing device for mechanical seal processing

Abstract

The application relates to the technical field of mechanical seal processing, and discloses a grinding and polishing device for mechanical seal processing, which comprises a rack, a workbench fixedly installed on one side of the top end of the rack, a controller fixedly installed on the other side of the top end of the rack, a grinding and polishing mechanism arranged at the top end of the workbench and used for grinding and polishing the mechanical seal, and a rotating and lifting mechanism arranged in the rack and used for gradually rotating and lifting the mechanical seal. The grinding and polishing mechanism and the rotating and lifting mechanism are cooperatively used, the rotation and lifting of the mechanical seal are alternately performed, the upper and lower parts of the mechanical seal are polished once, then the mechanical seal is slightly rotated, the position of the mechanical seal is changed, the upper and lower parts of the mechanical seal are polished again, the completeness of the polishing of the mechanical seal can be ensured, the polishing position of the mechanical seal can be slightly adjusted, and the situation that the temperature is too high due to long-time polishing of one position can be avoided.

Description

Technical Field

[0001] This invention relates to the field of mechanical seal processing technology, specifically to a grinding and polishing device for mechanical seal processing. Background Technology

[0002] Mechanical seals are among the most precise and complex basic mechanical components. They are key parts of various pumps, reaction vessels, turbine compressors, and submersible motors. Their sealing performance and service life depend on many factors, such as selection, machine precision, and proper installation and use. During processing, mechanical seals should have a smooth, burr-free surface, which requires the use of polishing equipment to polish the surface of the mechanical seals.

[0003] However, traditional grinding and polishing equipment generates heat due to the contact friction between the polishing head or abrasive belt and the surface of the mechanical seal during use. When this heat cannot be dissipated in time, the surface temperature rises. Furthermore, if the mechanical seal cannot be repositioned in real time, the polishing head or abrasive belt may polish the same spot for an extended period, causing a rapid increase in heat at that location. This can lead to overheating of the seal surface, resulting in thermal stress, deformation, or cracks, which will affect the subsequent use of the mechanical seal. Therefore, we propose a grinding and polishing device for processing mechanical seals. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding and polishing device for processing mechanical seals, so as to solve the problem that in the prior art, it is difficult to adjust the position of the mechanical seal in real time, which will cause the polishing head or sander to polish the same position of the mechanical seal for a long time, and will cause the heat at that position to rise sharply, resulting in overheating of the seal surface, generating thermal stress, deformation or cracks.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a grinding and polishing device for processing mechanical seals, comprising a frame, a worktable fixedly installed on one side of the top of the frame, a controller fixedly installed on the other side of the top of the frame, a grinding and polishing mechanism for grinding and polishing mechanical seals provided on the top of the worktable, and a rotary lifting mechanism for gradually rotating and lifting the mechanical seals provided inside the frame, the rotary lifting mechanism comprising a support plate fixedly installed at the bottom of the worktable and a transmission component cooperating with the grinding and polishing mechanism, a rotary lifting structure provided on one side of the support plate near the top, a gripper cylinder for fixing the mechanical seals provided at the top of the rotary lifting structure, and a toggle component for driving the rotary lifting structure to move provided at the bottom of the rotary lifting structure.

[0006] Preferably, the rotary lifting structure includes two sets of positioning sleeves. The positioning sleeves are fixedly connected to the support plate via a support plate. An inner cylinder is rotatably installed inside the positioning sleeve. A roller is fixedly installed outside the inner cylinder. The two sets of positioning sleeves are located at the upper and lower ends of the roller to limit its movement. Several actuation grooves are opened on the outer wall surface of the roller, and the actuation grooves are inclined. A lifting rod is slidably installed inside the inner cylinder.

[0007] Preferably, a lifting slide is fixedly installed on one side of the support plate below the roller. A lifting groove is opened at one end of the lifting slide, and a lifting slide plate is slidably installed inside the lifting groove. A connecting frame is fixedly installed at one end of the lifting slide plate near the top, and the connecting frame is fixedly installed at the bottom of the outside of the lifting rod.

[0008] Preferably, the actuating assembly includes a lifting rod rotatably mounted inside the frame and an actuating rod rotatably mounted at the bottom of the worktable. A second drive pulley is fixedly mounted on the outside of the lifting rod. An eccentric rod is fixedly mounted on the end of the lifting rod away from the second drive pulley. A protrusion is fixedly mounted on one end of the eccentric rod. An arc-shaped frame is sleeved on the outside of the protrusion and fixedly mounted on the outer wall of the lifting slide plate. A second driven pulley is fixedly mounted on the outside of the actuating rod. A second belt is sleeved on the outside of the second driven pulley and the second drive pulley. A fixing sleeve is also fixedly mounted on the outside of the actuating rod. A lever adapted to the actuating groove is fixedly mounted on both sides of the outer wall of the fixing sleeve.

[0009] Preferably, the transmission assembly includes a transmission shaft rotatably mounted on the bottom of the worktable, a second bevel gear fixedly mounted on one end of the transmission shaft, the second bevel gear meshing with a first bevel gear, a first drive pulley fixedly mounted on the end of the transmission shaft away from the second bevel gear, a first belt sleeved on the outside of the first drive pulley, a first driven pulley sleeved on one end of the first belt, and the first driven pulley fixedly mounted on the outside of the lifting rod, the diameter of the first drive pulley being smaller than the diameter of the first driven pulley.

[0010] Preferably, the inner wall of the inner cylinder is provided with limit grooves on both sides, and the outer wall of the lifting rod is provided with limit strips that are adapted to the limit grooves, and the limit strips are slidably installed inside the limit grooves.

[0011] Preferably, the grinding and polishing mechanism includes a motor fixedly installed at the bottom of the worktable and a fixed plate fixedly installed at the top of the worktable. The output end of the motor extends to the top of the worktable and is fixedly installed with a grinding drive wheel. A displacement component is provided at the top of the fixed plate. A wheel frame is fixedly installed at the top of the displacement component. A grinding wheel is rotatably installed inside the wheel frame via a rotating shaft. A traction roller is also fixedly installed at the top of the displacement component. An annular sanding belt is sleeved on the outside of the grinding drive wheel, the grinding wheel, and the traction roller.

[0012] Preferably, the displacement assembly includes a displacement cylinder fixedly installed at the bottom of the fixed plate and a slide rail fixedly installed at the top of the fixed plate. The driving direction of the displacement cylinder is towards the grinding wheel side. A movable seat is slidably installed at the top of the slide rail. The output end of the displacement cylinder is fixedly connected to the movable seat through a support rod.

[0013] Preferably, the grinding and polishing mechanism further includes a fine-tuning component for adjusting the tension of the annular abrasive belt. The fine-tuning component includes a fine-tuning cylinder fixedly installed on the top of the movable seat. A fine-tuning shaft is fixedly installed at the output end of the fine-tuning cylinder. A fine-tuning wheel is rotatably installed on the outside of the fine-tuning shaft, and the fine-tuning wheel is in close contact with the inner wall surface of the annular abrasive belt.

[0014] Preferably, the grinding and polishing mechanism further includes a clamping assembly for clamping the annular abrasive belt. The clamping assembly includes a clamping handle and a guide rail fixedly installed on the top of the movable seat. A clamping frame is fixedly installed at the output end of the clamping handle. A clamping wheel is rotatably installed inside the clamping frame and is in close contact with the outer wall of the annular abrasive belt. A slide is fixedly installed at the bottom end of the clamping frame and is slidably installed outside the guide rail.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention utilizes the combined operation of a grinding and polishing mechanism and a rotary lifting mechanism. In actual use, when the lifting rod rotates, it also drives the eccentric rod to rotate. The eccentric rod then moves the protrusion within the arc-shaped frame. When the eccentric rod drives the protrusion to rotate upwards, the protrusion moves from one end of the arc-shaped frame to the other end. When the protrusion acts on the other end of the arc-shaped frame, it pulls the arc-shaped frame upwards. Simultaneously, when the protrusion rotates to the top and continues to rotate towards the bottom, it moves from the other end of the arc-shaped frame to one end, also driving the arc-shaped frame downwards. Since the arc-shaped frame and the lifting slide plate are fixedly connected, when the arc-shaped frame moves up and down... This also causes the lifting slide to move up and down. Therefore, through the connection of the connecting frame, the lifting rod can be moved up and down, thereby enabling the mechanical seal to move up and down. This ensures that the mechanical seal can contact the annular sanding belt at both the top and bottom positions, avoiding uneven polishing caused by the mechanical seal being too long and the annular sanding belt being too short. Furthermore, the rotation and lifting of the lifting rod are performed alternately. Therefore, the mechanical seal is polished at the top and bottom, and then slightly rotated and polished at the top and bottom again at a different position. This ensures the integrity of the polishing of the mechanical seal and allows for small adjustments to the polishing position of the mechanical seal, preventing overheating caused by polishing one position for a long time. Attached Figure Description

[0017] Figure 1 A first-view perspective perspective view of a grinding and polishing device for machining mechanical seals;

[0018] Figure 2 A second-view perspective perspective view of a grinding and polishing device for machining mechanical seals;

[0019] Figure 3 A perspective view of the grinding and polishing mechanism and the rotary lifting mechanism of a grinding and polishing device for processing mechanical seals;

[0020] Figure 4 A schematic diagram of the grinding and polishing mechanism of a grinding and polishing device for processing mechanical seals;

[0021] Figure 5 A partial structural diagram of the grinding and polishing mechanism of a grinding and polishing device for processing mechanical seals, viewed from a first perspective.

[0022] Figure 6 A partial structural diagram of the grinding and polishing mechanism of a grinding and polishing device for processing mechanical seals, viewed from a second perspective.

[0023] Figure 7 A schematic diagram of the rotating lifting mechanism of a grinding and polishing device for processing mechanical seals;

[0024] Figure 8 A partial structural diagram of the rotary lifting mechanism of a grinding and polishing device for processing mechanical seals;

[0025] Figure 9 A schematic diagram of the roller and lifting rod structure of a grinding and polishing device for processing mechanical seals;

[0026] Figure 10 This is a schematic diagram of the roller structure of a grinding and polishing device for processing mechanical seals.

[0027] In the diagram: 10-Frame; 20-Worktable; 30-Grinding and polishing mechanism; 31-Motor; 32-Fixed plate; 33-Grinding drive wheel; 34-Annular sanding belt; 35-Moving seat; 351-Traction roller; 36-Grinding wheel; 361-Wheel frame; 37-Fine-adjustment assembly; 371-Fine-adjustment cylinder; 372-Fine-adjustment shaft; 373-Fine-adjustment wheel; 38-Pressure assembly; 381-Pressure frame; 382-Pressure handle; 383-Guide rail; 384-Slide; 385-Pressure wheel; 39-Displacement assembly; 391-Displacement cylinder; 392-Slide rail; 40-Controller; 50-Rotation lifting mechanism; 51-Pulling roller; 511-Inner cylinder; 512-Pulling groove; 513 52-Limiting groove; 52-Transmission assembly; 521-Transmission shaft; 522-First bevel gear; 523-Second bevel gear; 524-First drive pulley; 525-First belt; 526-First driven pulley; 53-Gripper cylinder; 54-Actuating assembly; 541-Lifting rod; 542-Second drive pulley; 543-Eccentric rod; 544-Protrusion; 545-Second belt; 546-Arc frame; 547-Actuating rod; 548-Second driven pulley; 549-Fixing sleeve; 5491-Actuating lever; 55-Support plate; 56-Lifting rod; 561-Connecting frame; 562-Limiting strip; 563-Lifting slide plate; 57-Lifting slide block; 58-Positioning sleeve. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-3 The present invention provides a technical solution: a grinding and polishing device for processing mechanical seals, including a frame 10, a worktable 20 fixedly installed on one side of the top of the frame 10, a controller 40 fixedly installed on the other side of the top of the frame 10, a grinding and polishing mechanism 30 for grinding and polishing mechanical seals provided at the top of the worktable 20, a rotary lifting mechanism 50 for gradually rotating and lifting the mechanical seals provided inside the frame 10, the rotary lifting mechanism 50 including a support plate 55 fixedly installed at the bottom of the worktable 20 and a transmission component 52 cooperating with the grinding and polishing mechanism 30, a rotary lifting structure provided near the top on one side of the support plate 55, a gripper cylinder 53 for fixing the mechanical seals provided at the top of the rotary lifting structure, and a toggle component 54 for driving the rotary lifting structure to move at the bottom of the rotary lifting structure.

[0030] In the preferred embodiment of this technical solution, please refer to Figures 7-10 The rotary lifting structure includes two sets of positioning sleeves 58, which are fixedly connected to the support plate 55 via a support plate. An inner cylinder 511 is rotatably installed inside the positioning sleeve 58, and a roller 51 is fixedly installed outside the inner cylinder 511. The two sets of positioning sleeves 58 are located at the upper and lower ends of the roller 51 to limit its movement. Several actuation grooves 512 are formed on the outer surface of the roller 51, and these grooves are inclined. A lifting rod 56 is slidably installed inside the inner cylinder 511. A gripper cylinder 53 is fixedly installed on the support plate 55. A lifting slide 57 is fixedly installed on one side of the support plate 55 below the roller 51. A lifting groove is formed at one end of the lifting slide 57, and a lifting slide plate 563 is slidably installed inside the lifting groove. A connecting frame 561 is fixedly installed at one end of the lifting rod 56 near the top. The connecting frame 561 is fixedly installed at the bottom of the lifting rod 56. When the roller 51 rotates under the drive of the actuating component 54, the roller 51 will also drive the inner cylinder 511 to rotate. At the same time, the inner cylinder 511 will also drive the lifting rod 56 to rotate. Therefore, the gripper cylinder 53 can be driven to rotate slightly, so that the mechanical seal fixed on the gripper cylinder 53 will also rotate slightly. This allows for a slight adjustment of the polishing position of the mechanical seal, avoiding the situation of excessive temperature due to polishing one position for a long time. It also enables all-round polishing of the mechanical seal without the need for manual adjustment of the mechanical seal position.

[0031] In the preferred embodiment of this technical solution, please refer to Figures 7-10The actuating assembly 54 includes a lifting rod 541 rotatably mounted inside the frame 10 and an actuating rod 547 rotatably mounted at the bottom of the worktable 20. A second drive pulley 542 is fixedly mounted on the outside of the lifting rod 541. An eccentric rod 543 is fixedly mounted on the end of the lifting rod 541 away from the second drive pulley 542. A protrusion 544 is fixedly mounted on one end of the eccentric rod 543. An arc-shaped frame 546 is sleeved on the outside of the protrusion 544 and fixedly mounted on the outer wall of the lifting slide plate 563. A second driven pulley 548 is fixedly mounted on the outside of the actuating rod 547. A second belt 545 is sleeved on the outside of the second driven pulley 548 and the second drive pulley 542. A fixing sleeve 549 is also fixedly mounted on the outside of the actuating rod 547. A lever 5491, adapted to the actuating groove 512, is fixedly mounted on both sides of the outer wall of the fixing sleeve 549. Driven by the transmission assembly 52, the first drive pulley 542 rotates, which in turn drives the second drive pulley 548 to rotate. Under the transmission of the second belt 545, the second driven pulley 548 also rotates, causing the actuating lever 547 to rotate as well. This drives the fixed sleeve 549 installed outside the actuating lever 547 to rotate. The fixed sleeve 549 then drives the two levers 5491 to rotate. When one of the levers 5491 rotates to the position of the actuating roller 51, the end of the lever 5491 enters from the bottom of the actuating groove 512. Then, the lever 5491 moves upward along the actuating groove 512. Since the actuating groove 512 is inclined, when the lever 5491 moves from the bottom to the top of the actuating groove 512, the lever 5491 acts on the inner wall of the actuating groove 512, thus driving the actuating roller 51 to rotate.

[0032] To further elaborate, when the lifting rod 541 rotates, it also drives the eccentric rod 543 to rotate. The eccentric rod 543 then drives the protrusion 544 to move within the arc-shaped frame 546. When the eccentric rod 543 drives the protrusion 544 to rotate and move upwards, the protrusion 544 moves from one end of the arc-shaped frame 546 to the other end. When the protrusion 544 acts on the other end of the arc-shaped frame 546, it pulls the arc-shaped frame 546 upwards. Simultaneously, when the protrusion 544 rotates to the top and continues to rotate towards the bottom, the protrusion 544 moves from one end of the arc-shaped frame 546 to the other end. When the other end of the arc frame 546 moves to one end of the arc frame 546, it will also cause the arc frame 546 to move downward. Since the arc frame 546 and the lifting slide plate 563 are fixedly connected, when the arc frame 546 moves up and down, it will also cause the lifting slide plate 563 to move up and down. Therefore, through the connection of the connecting frame 561, the lifting rod 56 can be driven to move up and down, thereby realizing the up and down movement of the mechanical seal. This ensures that the mechanical seal can contact the annular sanding belt at both the upper and lower positions, avoiding uneven polishing caused by the mechanical seal being too long and the annular sanding belt being too short.

[0033] It should be noted that when the arc-shaped frame 546 moves from the top to the bottom, the protrusion 544 is located at one end of the arc-shaped frame 546. When the protrusion 544 continues to move from one end of the arc-shaped frame 546 to the other end, the arc-shaped frame 546 does not move up and down during this intermediate process, and therefore does not drive the lifting rod 56 to move up and down. However, at this time, the lever 5491 will enter the actuation groove 512, which will drive the actuation roller 51 to rotate. Therefore, when the lifting rod 56 does not move up and down, the lifting rod 56 is in a rotating state. When the lifting rod 56 moves up and down, the lever 5491 will leave the actuation groove 512, and the lifting rod 56 will not rotate. That is to say, the rotation and lifting of the lifting rod 56 are alternated. Therefore, the mechanical seal is polished at the top and bottom, then slightly rotated, and then polished at the top and bottom again in a different position to ensure the integrity of the polishing of the mechanical seal.

[0034] In the preferred embodiment of this technical solution, please refer to Figure 4 and Figure 7 The transmission assembly 52 includes a transmission shaft 521 rotatably mounted on the bottom of the worktable 20. A second bevel gear 523 is fixedly mounted on one end of the transmission shaft 521. The second bevel gear 523 meshes with a first bevel gear 522. The first bevel gear 522 is fixedly mounted on the output shaft of the motor 31. A first drive pulley 524 is fixedly mounted on the end of the transmission shaft 521 away from the second bevel gear 523. A first belt 525 is sleeved on the outside of the first drive pulley 524. A first driven pulley 525 is sleeved on one end of the first belt 525. 26. The first driven pulley 526 is fixedly installed outside the lifting rod 541. When the motor 31 is working, it can drive the first bevel gear 522 to rotate. Since the first bevel gear 522 is meshed with the second bevel gear 523, it can drive the transmission shaft 521 to rotate through the second bevel gear 523. At the same time, it can also drive the first drive pulley 524 to rotate. Through the transmission of the first belt 525, it can drive the first driven pulley 526 to rotate. Therefore, the lifting rod 541 will also rotate.

[0035] It should be noted that the diameter of the first drive pulley 524 is smaller than the diameter of the first driven pulley 526. Therefore, the first driven pulley 526 will only rotate once after the first drive pulley 524 rotates multiple times. Thus, the mechanical seal will only perform the up-and-down lifting and rotation operation after the annular sanding belt 34 polishes several times under the drive of the motor 31. This prevents the seal from lifting and rotating before polishing a single position.

[0036] In the preferred embodiment of this technical solution, please refer to Figure 10The inner cylinder 511 has limit grooves 513 on both sides of its inner wall, and the lifting rod 56 has limit strips 562 on both sides of its outer wall that are adapted to the limit grooves 513. The limit strips 562 are slidably installed inside the limit grooves 513. Therefore, the inner cylinder 511 can drive the lifting rod 56 to rotate, and the lifting rod 56 can also slide up and down inside the inner cylinder 511.

[0037] In the preferred embodiment of this technical solution, please refer to Figures 3-6 The grinding and polishing mechanism 30 includes a motor 31 fixedly installed at the bottom of the worktable 20 and a fixed plate 32 fixedly installed at the top of the worktable 20. The output end of the motor 31 extends to the top of the worktable 20 and a grinding drive wheel 33 is fixedly installed thereon. A displacement component 39 is provided at the top of the fixed plate 32. A wheel frame 361 is fixedly installed at the top of the displacement component 39. A grinding wheel 36 is rotatably installed inside the wheel frame 361 via a rotating shaft. A traction roller 351 is also fixedly installed at the top of the displacement component 39. An annular sanding belt 34 is sleeved on the outside of the grinding drive wheel 33, the grinding wheel 36, and the traction roller 351. When the motor 31 works, it drives the grinding drive wheel 33 to rotate. In conjunction with the grinding wheel 36 and the traction roller 351, the annular sanding belt 34 can be driven to rotate rapidly. Thus, the rotation of the annular sanding belt 34 can achieve grinding and polishing of the seal.

[0038] In the preferred embodiment of this technical solution, please refer to Figure 5 The displacement assembly 39 includes a displacement cylinder 391 fixedly installed at the bottom of the fixed plate 32 and a slide rail 392 fixedly installed at the top of the fixed plate 32. The driving direction of the displacement cylinder 391 is towards the side of the grinding wheel 36. A movable seat 35 is slidably installed at the top of the slide rail 392. The output end of the displacement cylinder 391 is fixedly connected to the movable seat 35 through a support rod. When the displacement cylinder 391 works, it can drive the movable seat 35 to move, which can drive the grinding wheel 36 to move, thus controlling the position of the annular sand belt 34 on the outside of the grinding wheel 36, ensuring that the annular sand belt 34 can contact the surface of the seal.

[0039] In the preferred embodiment of this technical solution, please refer to Figure 6 The grinding and polishing mechanism 30 also includes a fine-tuning component 37 for adjusting the tension of the annular sanding belt 34. The fine-tuning component 37 includes a fine-tuning cylinder 371 fixedly installed on the top of the movable seat 35. A fine-tuning shaft 372 is fixedly installed at the output end of the fine-tuning cylinder 371. A fine-tuning wheel 373 is rotatably installed on the outside of the fine-tuning shaft 372. The fine-tuning wheel 373 is in close contact with the inner wall surface of the annular sanding belt 34. The operation of the fine-tuning cylinder 371 can drive the fine-tuning wheel 373 to move, so that the annular sanding belt 34 is always in a taut state.

[0040] In the preferred embodiment of this technical solution, please refer to Figure 6The grinding and polishing mechanism 30 also includes a clamping assembly 38 for clamping the annular sanding belt 34. The clamping assembly 38 includes a clamping handle 382 and a guide rail 383 fixedly installed on the top of the movable seat 35. A clamping frame 381 is fixedly installed at the output end of the clamping handle 382. A clamping wheel 385 is rotatably installed inside the clamping frame 381 and is in close contact with the outer wall of the annular sanding belt 34. A slide 384 is fixedly installed at the bottom end of the clamping frame 381 and is slidably installed outside the guide rail 383. By pulling the clamping handle 382 upward, the clamping frame 381 can be moved towards the position of the annular sanding belt 34, so that the clamping wheel 385 can be pressed against the annular sanding belt 34, ensuring that the annular sanding belt 34 is in close contact with the outside of the grinding wheel 36.

[0041] 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 process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding and polishing device for processing mechanical seals, comprising a frame (10), wherein a worktable (20) is fixedly installed on one side of the top of the frame (10), and a controller (40) is fixedly installed on the other side of the top of the frame (10), characterized in that: The top of the workbench (20) is provided with a polishing mechanism (30) for polishing mechanical seals. The frame (10) is provided with a rotary lifting mechanism (50) for gradually rotating and lifting mechanical seals. The rotary lifting mechanism (50) includes a support plate (55) fixedly installed at the bottom of the workbench (20) and a transmission assembly (52) that cooperates with the polishing mechanism (30). A rotary lifting structure is provided on one side of the support plate (55) near the top. A gripper cylinder (53) for fixing mechanical seals is provided at the top of the rotary lifting structure. A toggle assembly (54) for driving the rotary lifting structure is provided at the bottom of the rotary lifting structure. The rotary lifting structure includes... The device includes two sets of positioning sleeves (58), which are fixedly connected to the support plate (55) via a support plate. An inner cylinder (511) is rotatably installed inside each positioning sleeve (58), and a roller (51) is fixedly installed outside the inner cylinder (511). The two sets of positioning sleeves (58) are located at the upper and lower ends of the roller (51) to limit its movement. Several actuation grooves (512) are formed on the outer surface of the roller (51), and these grooves (512) are inclined. A lifting rod (56) is slidably installed inside the inner cylinder (511). A lifting slide (57) is fixedly installed on one side of the support plate (55) below the roller (51), and a lifting groove is formed at one end of the lifting slide (57). A lifting slide plate (563) is slidably installed inside the lifting slide groove. A connecting frame (561) is fixedly installed near the top of the lifting slide plate (563), and the connecting frame (561) is fixedly installed at the bottom of the lifting rod (56). The actuating assembly (54) includes a lifting rotating rod (541) rotatably installed inside the frame (10) and an actuating rotating rod (547) rotatably installed at the bottom of the worktable (20). A second drive pulley (542) is fixedly installed on the outside of the lifting rotating rod (541). An eccentric rod (543) is fixedly installed at the end of the lifting rotating rod (541) away from the second drive pulley (542). A protrusion (544) is fixedly installed at one end of the eccentric rod (543). An arc-shaped frame (546) is fitted on the outside of the lifting slide plate (563), and the arc-shaped frame (546) is fixedly installed on the outer wall of the lifting slide plate (563). A second driven pulley (548) is fixedly installed on the outside of the actuating lever (547). A second belt (545) is fitted on the outside of the second driven pulley (548) and the second driving pulley (542). A fixed sleeve (549) is also fixedly installed on the outside of the actuating lever (547). A lever (5491) that matches the actuating groove (512) is fixedly installed on both sides of the outer wall of the fixed sleeve (549). The transmission assembly (52) includes a transmission shaft (521) that is rotatably installed on the bottom of the worktable (20). A second bevel gear (523) is fixedly installed on one end of the transmission shaft (521).The second bevel gear (523) is meshed with the first bevel gear (522). A first drive pulley (524) is fixedly installed at the end of the drive shaft (521) away from the second bevel gear (523). A first belt (525) is sleeved on the outside of the first drive pulley (524). A first driven pulley (526) is sleeved at one end of the first belt (525), and the first driven pulley (526) is fixedly installed outside the lifting rod (541). The diameter of the first drive pulley (524) is smaller than the diameter of the first driven pulley (526). Limiting grooves (513) are opened on both sides of the inner wall of the inner cylinder (511). Limiting strips (562) adapted to the limiting grooves (513) are opened on both sides of the outer wall of the lifting rod (56), and the limiting strips (562) are slidably installed inside the limiting grooves (513).

2. The grinding and polishing device for processing mechanical seals according to claim 1, characterized in that: The grinding and polishing mechanism (30) includes a motor (31) fixedly installed at the bottom of the workbench (20) and a fixed plate (32) fixedly installed at the top of the workbench (20). The output end of the motor (31) extends to the top of the workbench (20) and is fixedly installed with a grinding drive wheel (33). A displacement component (39) is provided at the top of the fixed plate (32). A wheel frame (361) is fixedly installed at the top of the displacement component (39). A grinding wheel (36) is rotatably installed inside the wheel frame (361) via a rotating shaft. A traction roller (351) is also fixedly installed at the top of the displacement component (39). An annular sanding belt (34) is sleeved on the outside of the grinding drive wheel (33), the grinding wheel (36), and the traction roller (351).

3. The grinding and polishing device for processing mechanical seals according to claim 2, characterized in that: The displacement assembly (39) includes a displacement cylinder (391) fixedly installed at the bottom of the fixed plate (32) and a slide rail (392) fixedly installed at the top of the fixed plate (32). The driving direction of the displacement cylinder (391) is towards the grinding wheel (36). A movable seat (35) is slidably installed at the top of the slide rail (392). The output end of the displacement cylinder (391) is fixedly connected to the movable seat (35) through a support rod.

4. The grinding and polishing device for processing mechanical seals according to claim 3, characterized in that: The grinding and polishing mechanism (30) also includes a fine-tuning component (37) for adjusting the tightness of the annular abrasive belt (34). The fine-tuning component (37) includes a fine-tuning cylinder (371) fixedly installed on the top of the movable seat (35). A fine-tuning shaft (372) is fixedly installed at the output end of the fine-tuning cylinder (371). A fine-tuning wheel (373) is rotatably installed on the outside of the fine-tuning shaft (372), and the fine-tuning wheel (373) is in close contact with the inner wall surface of the annular abrasive belt (34).

5. The grinding and polishing device for machining mechanical seals according to claim 3, characterized in that: The grinding and polishing mechanism (30) further includes a clamping assembly (38) for clamping the annular abrasive belt (34). The clamping assembly (38) includes a clamping handle (382) and a guide rail (383) fixedly installed on the top of the movable seat (35). A clamping frame (381) is fixedly installed at the output end of the clamping handle (382). A clamping wheel (385) is rotatably installed inside the clamping frame (381) and the clamping wheel (385) is in close contact with the outer wall of the annular abrasive belt (34). A slide (384) is fixedly installed at the bottom end of the clamping frame (381) and the slide (384) is slidably installed outside the guide rail (383).

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