An automatic device for surface treatment of valve seat sealing rings

Abstract

The utility model discloses a kind of valve seat sealing ring surface treatment's automation equipment, it is related to sealing ring processing technical field for valve seat, to solve the problem of high rejection rate caused by the inconvenience of clamping sealing ring in the process of using traditional sealing ring surface treatment equipment, including rack assembly, clamping assembly and polishing assembly;The rack assembly includes workbench, the machining table being set at the top of workbench, the curved frame being set at the top of one side of workbench, the top frame being set at the top of curved frame.The utility model is clamped by setting clamping assembly, and sealing ring is adsorbed in the clamping surface of fixed clamping plate by vacuum suction hole, so that sealing ring is tightly attached to the clamping piece of fixed clamping plate, and the adsorption force generated by vacuum suction is evenly distributed on the contact surface of sealing ring and fixed clamping plate, without causing local extrusion to sealing ring, which can realize stable clamping and maintain the original shape of sealing ring during polishing process.

Description

Technical Field

[0001] This utility model relates to the field of valve seat sealing ring processing technology, and more specifically, to an automated device for surface treatment of valve seat sealing rings. Background Technology

[0002] Valve seat seals, as core components of valve sealing systems, play a crucial role in ensuring the sealing performance, safety, and reliability of fluid transport systems. By tightly fitting the valve seat and valve core, they effectively prevent media leakage and are widely used in various fields such as petroleum, chemical, power, metallurgy, and water supply and drainage. Depending on the material, valve seat seals can be classified into rubber seals, polytetrafluoroethylene (PTFE) seals, and metal seals; structurally, common types include O-rings, Y-rings, and V-rings.

[0003] During the manufacturing process of sealing rings, microscopic defects may still exist on the surface of the sealing ring, such as tiny grooves, pores, or uneven areas. These defects can easily become channels for media leakage in high-pressure or high-precision sealing scenarios. Surface treatments, such as grinding and polishing, can reduce surface roughness, allowing for a tighter fit between the sealing ring and the valve seat / core, reducing gaps, and thus significantly improving the sealing effect to achieve stricter zero-leakage or low-leakage requirements. Because the sealing ring material is soft, insufficient clamping force during processing can cause displacement and product damage, while excessive clamping force can lead to deformation of the sealing ring, affecting its sealing performance. Based on these issues, we propose an automated device for the surface treatment of valve seat sealing rings. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an automated equipment for surface treatment of valve seat sealing rings, so as to solve the problem that traditional sealing ring surface treatment equipment is not convenient to clamp the sealing rings during use, which leads to a high defect rate.

[0005] To solve the above technical problems, this utility model provides the following technical solution: an automated device for surface treatment of valve seat sealing rings, including a frame assembly, a clamping assembly, and a polishing assembly; the frame assembly includes a worktable, a processing table disposed on top of the worktable, a curved frame disposed on one side of the top of the worktable, and a top frame disposed on top of the curved frame; the clamping assembly includes fixed plates disposed on both sides of the top of the worktable, a clamping cylinder disposed on one side of the fixed plate, a fixed clamping plate disposed at the output end of the clamping cylinder, a vacuum adsorption hole disposed on the opposite side of the fixed clamping plate, and a first negative pressure pump disposed at the bottom of the worktable, wherein the output end of the first negative pressure pump is connected to one side of the fixed clamping plate through a first connecting pipe; the polishing assembly includes a lifting cylinder disposed on top of the top frame, a drive motor disposed at the bottom output end of the lifting cylinder, a turntable disposed at the output end of the drive motor, a high-speed motor disposed on one side of the top of the turntable, and a polishing column disposed on one side of the bottom of the turntable and connected to the output end of the high-speed motor; During the process of clamping the sealing ring to be polished by the fixed clamping plate, when the fixed clamping plate is in contact with both sides of the sealing ring, the first negative pressure pump works, and the vacuum adsorption hole adsorbs the sealing ring onto the clamping surface of the fixed clamping plate.

[0006] Preferably, it also includes a dust collection assembly, which includes a mounting bracket disposed in the middle of the front surface of the curved frame, a dust collection nozzle disposed on the front surface of the mounting bracket, a dust collection box disposed at the bottom of the workbench, and a second negative pressure pump. One end of the dust collection box is connected to the dust collection nozzle through a second connecting pipe, and the other side of the dust collection box is connected to the output port of the second negative pressure pump through a pipe.

[0007] Preferably, a liner is provided at the bottom center of the turntable. The liner is arranged in a notched annular shape, and the notch of the annular shape is located at the position of the polishing column. A cleaning brush is provided on the inner side wall of the liner. The cleaning brush is curved and evenly distributed in a ring along the inner side wall of the liner.

[0008] Preferably, a slag discharge hole is provided in the middle of the top of the processing table, and the slag discharge hole penetrates the worktable and the processing table, and the slag discharge hole is located directly below the liner plate.

[0009] Preferably, the interior of the fixing clamp is vacuum-sealed, forming a vacuum cavity, which is connected to the vacuum adsorption hole and the first connecting pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model designs a clamping assembly with vacuum adsorption holes on the opposite side of the fixed clamping plate. During the clamping process of the fixed clamping plate, a negative pressure is formed in the vacuum cavity inside the fixed clamping plate through a first negative pressure pump and a first connecting pipe connected to the fixed clamping plate. The vacuum adsorption holes adsorb the sealing ring onto the clamping surface of the fixed clamping plate, making the sealing ring tightly fit against the clamping plate. The adsorption force generated by the vacuum adsorption is evenly distributed on the contact surface between the sealing ring and the fixed clamping plate, which will not cause local compression of the sealing ring. This not only achieves stable clamping but also maintains the original shape of the sealing ring during the polishing process.

[0011] 2. This utility model also incorporates a dust collection component. The output end of the second negative pressure pump is connected to the dust collection box. When the second negative pressure pump is working, a negative pressure is formed inside the dust collection box. At the same time, one end of the dust collection box is connected to the suction nozzle through the second connecting pipe. During the polishing process, the negative pressure generated by the second negative pressure pump causes the suction nozzle to suck in the polishing debris and dust, which are then transferred to the dust collection box through the second connecting pipe. This achieves efficient dust removal, ensures a clean processing environment, and prevents dust from affecting the polishing quality and normal operation of the equipment.

[0012] 3. This utility model also incorporates a polishing assembly with a liner plate at the bottom of the turntable. When the turntable contacts the top of the sealing ring, the liner plate inserts into the inner ring of the sealing ring, supporting the inner wall of the sealing ring. This prevents the sealing ring from deforming during polishing, which would affect product quality. Additionally, a cleaning brush is installed on the inner wall of the liner plate to remove polishing debris. The removed debris is discharged directly from the slag discharge hole at the top of the processing table, further improving the quality of the production process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the frame assembly structure of this utility model; Figure 3 This is a schematic diagram of the clamping component structure of this utility model; Figure 4 This is a schematic diagram of the polishing component structure of this utility model; Figure 5 This is a schematic diagram of the bottom structure of the turntable of this utility model; Figure 6 This is a schematic diagram of the dust collection component structure of this utility model; Figure 7 This is a schematic diagram of the working structure of the polishing component of this utility model.

[0014] The following are the labeling instructions in the diagram: 1. Frame assembly; 101. Workbench; 102. Processing table; 103. Curved frame; 104. Top frame; 105. Slag discharge hole; 2. Clamping assembly; 201. Fixing plate; 202. Clamping cylinder; 203. Fixing clamping plate; 204. Vacuum adsorption hole; 205. First negative pressure pump; 206. First connecting pipe; 3. Polishing assembly; 301. Lifting cylinder; 302. Drive motor; 303. Turntable; 304. High-speed motor; 305. Polishing column; 306. Liner plate; 307. Cleaning brush; 4. Dust collection assembly; 401. Mounting bracket; 402. Dust suction nozzle; 403. Dust collection box; 404. Second connecting pipe; 405. Second negative pressure pump. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: This utility model relates to an automated device for surface treatment of valve seat seals, including a frame assembly 1, a clamping assembly 2, and a polishing assembly 3. The frame assembly 1 includes a worktable 101, a processing table 102 fixedly connected to the top of the worktable 101, a curved frame 103 fixedly connected to one side of the top of the worktable 101, and a top frame 104 fixedly connected to the top of the curved frame 103. The worktable 101 provides a stable support platform for the entire device, the processing table 102 is used to place the valve seat seals to be treated, and the curved frame 103 and the top frame 104 provide structural support for the installation of other components. The clamping assembly 2 includes a fixed... The workbench 101 is equipped with fixed plates 201 on both sides of the top, a clamping cylinder 202 fixedly connected to one side of the fixed plate 201, a fixed clamping plate 203 fixedly connected to the output end of the clamping cylinder 202, a vacuum adsorption hole 204 on the opposite side of the fixed clamping plate 203, and a first negative pressure pump 205 fixedly connected to the bottom of the workbench 101, with the output end of the first negative pressure pump 205 connected to one side of the fixed clamping plate 203 via a first connecting pipe 206. The fixed plate 201 is used to install the clamping cylinder 202, the clamping cylinder 202 is used to drive the fixed clamping plate 203 to move relative to each other, and the fixed clamping plate 203 is used to clamp the workbench 101. The sealing ring is clamped, and the vacuum adsorption hole 204 is used to adsorb the sealing ring onto the surface of the fixed clamping plate 203. The first negative pressure pump 205 is used to provide the power for adsorption vacuum adsorption. The first connecting pipe 206 is used to connect the first negative pressure pump 205 to the vacuum chamber inside the fixed clamping plate 203. The polishing assembly 3 includes a lifting cylinder 301 fixedly connected to the top of the top frame 104, a drive motor 302 fixedly connected to the bottom output end of the lifting cylinder 301, a turntable 303 installed at the output end of the drive motor 302, a high-speed motor 304 installed on one side of the top of the turntable 303, and a high-speed motor 304 installed on one side of the bottom of the turntable 303. The high-speed motor 304 is connected to the polishing column 305 at its output end. The lifting cylinder 301 is used to drive the drive motor 302 to move up and down. The drive motor 302 is used to drive the turntable 303 to rotate. The turntable 303 presses and limits the sealing ring. The high-speed motor 304 is used to drive the polishing column 305 to rotate. The polishing column 305 is used to polish the inner wall of the sealing ring. During the process of the fixed clamping plate 203 clamping the sealing ring to be polished, when the fixed clamping plate 203 is in contact with both sides of the sealing ring, the first negative pressure pump 205 works, and the vacuum adsorption hole 204 adsorbs the sealing ring onto the clamping surface of the fixed clamping plate 203.This invention, through the design of the clamping component 2, utilizes vacuum adsorption holes 204 on the opposite side of the fixed clamping plate 203. During the clamping process of the fixed clamping plate 203, a negative pressure is created within the vacuum chamber of the fixed clamping plate 203 via a first negative pressure pump 205 and a first connecting pipe 206. This creates negative pressure, which adsorbs the sealing ring onto the clamping surface of the fixed clamping plate 203 through the vacuum adsorption holes 204. This ensures the sealing ring is tightly fitted to the clamping surface of the fixed clamping plate 203. The adsorption force generated by the vacuum adsorption is evenly distributed on the contact surface between the sealing ring and the fixed clamping plate 203, preventing localized compression of the sealing ring. This achieves stable clamping while maintaining the original shape of the sealing ring during polishing.

[0016] Specifically, it also includes a dust collection assembly 4, which includes a mounting bracket 401 fixedly connected to the middle of the front surface of the curved frame 103, a dust collection nozzle 402 inserted into the front surface of the mounting bracket 401, a dust collection box 403 installed at the bottom of the workbench 101, and a second negative pressure pump 405. One end of the dust collection box 403 is connected to the dust collection nozzle 402 through a second connecting pipe 404, and the other end of the dust collection box 403 is connected to the output port of the second negative pressure pump 405 through a pipe. Further, the mounting bracket 401 is used to install the dust collection nozzle 402, which is used to absorb and collect polishing debris. The dust collection box 403 is used to store the debris. The second connecting pipe... 404 is used to connect the suction nozzle 402 and the dust collection box 403. This utility model also designs a suction component 4, with the output end of the second negative pressure pump 405 connected to the dust collection box 403. When the second negative pressure pump 405 is working, a negative pressure is formed inside the dust collection box 403. At the same time, one end of the dust collection box 403 is connected to the suction nozzle 402 through the second connecting pipe 404. During the polishing process, the negative pressure generated by the second negative pressure pump 405 causes the suction nozzle 402 to suck in the polishing debris and dust, which is then transmitted to the dust collection box 403 through the second connecting pipe 404. This achieves efficient dust removal, ensures a clean processing environment, and avoids dust affecting the polishing quality and normal operation of the equipment.

[0017] More specifically, a liner 306 is provided at the bottom center of the turntable 303. The liner 306 is arranged in a notched annular shape, with the notch located at the position of the polishing column 305. A cleaning brush 307 is provided on the inner wall of the liner 306. The cleaning brush 307 is curved and evenly distributed in a ring along the inner wall of the liner 306. The liner 306 is used to support the inner wall of the sealing ring and prevent deformation of the sealing ring during polishing. The cleaning brush 307 can clean up the waste generated during polishing. This utility model also improves upon the design... The polishing assembly 3 has a liner 306 at the bottom of the turntable 303. When the turntable 303 contacts the top of the sealing ring, the liner 306 is inserted into the inner ring of the sealing ring to support the inner wall of the sealing ring. This can prevent the sealing ring from deforming during the polishing process and affecting the quality of the product. At the same time, a cleaning brush 307 is provided on the inner wall of the liner 306 to clean the waste generated during polishing. The cleaned waste is directly discharged from the slag discharge hole 105 at the top of the processing table 102, further improving the quality of production and processing.

[0018] It is worth mentioning that a slag discharge hole 105 is provided in the middle of the top of the processing table 102, and the slag discharge hole 105 passes through the worktable 101 and the processing table 102. The slag discharge hole 105 is located directly below the liner plate 306. In this way, the cleaning brush 307 can directly push the waste generated by polishing into the slag discharge hole 105 and discharge it directly.

[0019] It is worth noting that the interior of the fixing plate 203 is set with a vacuum, forming a vacuum chamber, which is connected to the vacuum adsorption hole 204 and the first connecting pipe 206 respectively. The adsorption force generated by the vacuum adsorption is evenly distributed on the contact surface between the sealing ring and the fixing plate 203, and will not cause local compression to the sealing ring.

[0020] Working Principle: This embodiment provides an automated device for surface treatment of valve seat seals. During use, connect the corresponding air pipes and wires; debug the device, checking the smooth operation of the clamping cylinder 202 and lifting cylinder 301, and ensuring the speed of the drive motor 302 meets requirements; place the valve seat seal to be polished on the processing table 102, between two fixed clamping plates 203; start the device, and the clamping cylinder 202 pushes the fixed clamping plates 203 towards the seal. As the fixed clamping plates 203 gradually approach the seal, when they are in contact with both sides of the seal, the first negative pressure pump 205 starts. The negative pressure pump 205 transmits negative pressure to the vacuum chamber of the fixed clamping plate 203 through the first connecting pipe 206, and then adsorbs the sealing ring onto the clamping surface of the fixed clamping plate 203 through the vacuum adsorption hole 204, thus completing the stable clamping of the sealing ring. Then, the lifting cylinder 301 drives the turntable 303 to descend until the turntable 303 is in contact with the top of the sealing ring. The high-speed motor 304 drives the polishing column 305 to rotate at high speed, realizing the polishing of the inner wall of the sealing ring. During the polishing process, the second negative pressure pump 405 works, and the dust suction nozzle 402 sucks in the polishing debris and dust under the action of negative pressure, and transmits it to the dust collection box 403 through the second connecting pipe 404. When the dust in the dust collection box 403 reaches a certain amount, the dust collection box 403 can be removed for cleaning to ensure the normal operation of the dust collection component 4.

[0021] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An automated device for surface treatment of valve seat seal rings, characterized in that, The assembly includes a frame assembly (1), a clamping assembly (2), and a polishing assembly (3); the frame assembly (1) includes a worktable (101), a processing table (102) disposed on the top of the worktable (101), a curved frame (103) disposed on one side of the top of the worktable (101), and a top frame (104) disposed on the top of the curved frame (103); the clamping assembly (2) includes a fixing plate (201) disposed on both sides of the top of the worktable (101), a clamping cylinder (202) disposed on one side of the fixing plate (201), a fixing clamping plate (203) disposed at the output end of the clamping cylinder (202), and a vacuum adsorption hole disposed on the opposite side of the fixing clamping plate (203). (204) A first negative pressure pump (205) is set at the bottom of the workbench (101), and the output end of the first negative pressure pump (205) is connected to one side of the fixed clamp plate (203) through the first connecting pipe (206); the polishing assembly (3) includes a lifting cylinder (301) set at the top of the top frame (104), a drive motor (302) set at the bottom output end of the lifting cylinder (301), a turntable (303) set at the output end of the drive motor (302), a high-speed motor (304) set at the top side of the turntable (303), and a polishing column (305) set at the bottom side of the turntable (303) and connected to the output end of the high-speed motor (304); During the process of clamping the sealing ring to be polished by the fixed clamping plate (203), when the fixed clamping plate (203) is in contact with both sides of the sealing ring, the first negative pressure pump (205) works, and the vacuum adsorption hole (204) adsorbs the sealing ring onto the clamping surface of the fixed clamping plate (203).

2. The automated equipment for surface treatment of valve seat sealing rings according to claim 1, characterized in that, It also includes a dust collection assembly (4), which includes a mounting bracket (401) disposed in the middle of the front surface of the curved frame (103), a dust suction nozzle (402) disposed on the front surface of the mounting bracket (401), a dust collection box (403) disposed at the bottom of the workbench (101), and a second negative pressure pump (405). One end of the dust collection box (403) is connected to the dust suction nozzle (402) through a second connecting pipe (404), and the other side of the dust collection box (403) is connected to the output port of the second negative pressure pump (405) through a pipe.

3. The automated equipment for surface treatment of valve seat sealing rings according to claim 2, characterized in that, A liner plate (306) is provided at the bottom center of the turntable (303). The liner plate (306) is arranged in a ring with a notch, and the notch of the ring is located at the position of the polishing column (305). A cleaning brush (307) is provided on the inner side wall of the liner plate (306). The cleaning brush (307) is curved and is evenly distributed in a ring along the inner side wall of the liner plate (306).

4. The automated equipment for surface treatment of valve seat sealing rings according to claim 3, characterized in that, The processing table (102) has a slag discharge hole (105) in the middle of its top, and the slag discharge hole (105) passes through the workbench (101) and the processing table (102). The slag discharge hole (105) is located directly below the liner plate (306).

5. The automated equipment for surface treatment of valve seat sealing rings according to claim 4, characterized in that, The interior of the fixed clamp (203) is set with a vacuum, forming a vacuum cavity, which is connected to the vacuum adsorption hole (204) and the first connecting pipe (206) respectively.

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