A grinding and trimming machine tool and a trimming method for a sealing ring

Abstract

The present invention discloses a grinding and trimming machine tool and a trimming method for a sealing ring, which relates to the field of grinding equipment and includes a grinding table. A rotatable grinding wheel is arranged on the grinding table, and a vacuum adsorption assembly is arranged on the grinding table. The vacuum adsorption assembly includes two groups of vacuum adsorption units, a negative pressure unit and a flipping unit. The vacuum adsorption unit includes an adsorption disc which can rotate, and a number of adsorption holes are formed in the adsorption disc. Adsorbing the workpiece on the adsorption disc makes the workpiece more stable and not easy to shake during the grinding process. After the upper surface of the workpiece is ground, the two adsorption discs flip to drive the workpiece to flip and grind the other side of the workpiece, resulting in a better grinding effect on the workpiece, eliminating the operation of manually flipping the workpiece, improving the grinding efficiency, saving time and effort. When the workpiece flips, the two adsorption discs approach each other to press the workpiece tightly to prevent the workpiece from falling during the flipping process and improve the stability.

Description

Technical Field

[0001] The present invention relates to the field of grinding equipment, and particularly to a grinding and trimming machine tool and a trimming method for sealing rings. Background Art

[0002] Grinding and trimming machine tools are mechanical devices specifically used for grinding and trimming the edges of various workpieces. They are widely used in industries such as metal processing, woodworking, and stone processing to improve the machining accuracy and surface finish of workpieces. Sealing ring grinding and trimming refers to processing the edges of sealing rings to remove excess materials, burrs, or unevenness, ensuring the precise dimensions and smooth appearance of the sealing rings, thereby improving their sealing performance and overall quality. In industrial applications, especially in high-pressure or high-temperature environments, the integrity of the sealing rings is crucial. Therefore, grinding and trimming is a key processing step.

[0003] Chinese Patent Application CN108942472A discloses a vacuum automatic friction plate trimming machine, including a machine case, a main shaft part, a fixed grinding tool rack part, a transverse grinding tool rack part, and a grinding tool assembly plate part. A main shaft part is provided at the middle position inside the machine case. A table board is provided above the machine case, and a pneumatic chuck is provided above the table board. A friction plate is clamped on the pneumatic chuck. A fixed grinding tool rack part is provided on the right side above the machine case. A transverse grinding tool rack part is slidably provided on the fixed grinding tool rack part through a vertical rail, and a grinding tool assembly plate part is slidably provided on the transverse grinding tool rack part through a horizontal rail; by providing adjusting lead screws and adjusting collars on both the fixed grinding tool rack part and the transverse grinding tool rack part, the horizontal position and height position of the grinding tool can be finely adjusted, ensuring the stability of the grinding tool and improving the trimming quality; by means of a guide rod, the feeding direction of the grinding tool rod can be controlled, ensuring the working position of the grinding tool. During operation, the buffer can effectively stop the impact block, extending the service life of the machine;

[0004] Chinese Patent CN104057379B discloses a sealing ring trimming machine, including: a machine body; a fixture, including a first chuck and a second chuck arranged oppositely, the first chuck is fixed on the machine body, and the second chuck cooperates with the first chuck to clamp the above-mentioned sealing ring; a control device, arranged on the machine body and connected to the second chuck, the control device controls the opening and closing of the fixture by driving the second chuck; trimming parts, including a first trimming part and a second trimming part, the first trimming part is located between the first chuck and the second chuck, the first trimming part corresponds to the burrs on the inner ring of the sealing ring and is close to the burrs on the inner ring of the sealing ring; the second trimming part corresponds to the burrs on the outer ring of the sealing ring and is close to the burrs on the outer ring of the sealing ring; the first trimming part and the second trimming part slide relative to the sealing ring, realizing automatic trimming, with a fast trimming speed and reducing the manual input.

[0005] The following defects also exist in the above patents and the prior art:

[0006] The workpiece is adsorbed on the processing table using vacuum negative pressure. However, the bottom of the workpiece is blocked, and trimming and grinding cannot be performed, resulting in burrs remaining on the bottom of the workpiece. The quality and accuracy of the workpiece are low. It is necessary to manually flip the workpiece and then grind and trim the top and side surfaces of the workpiece again. Manual operation is rather troublesome, with a large investment in labor and low efficiency.

[0007] Therefore, the present application provides a grinding and trimming machine tool and a trimming method for sealing rings to meet the requirements. Summary of the Invention

[0008] The purpose of the present application is to provide a grinding and trimming machine tool and a trimming method for sealing rings, which adsorb the workpiece on the suction disc, making the workpiece more stable and less likely to shake during the grinding process. After the upper surface of the workpiece is ground, the two suction discs are flipped to drive the workpiece to flip, and the other side of the workpiece is ground, resulting in a better grinding effect on the workpiece. The operation of manually flipping the workpiece is omitted, improving the grinding efficiency, saving time and effort. When the workpiece is flipped, the two suction discs approach each other to press the workpiece tightly, preventing the workpiece from falling during the flipping process and improving stability.

[0009] To achieve the above object, the present application provides the following technical solution: A grinding and trimming machine tool, including a grinding table, a grinding wheel capable of rotating is arranged on the grinding table, a vacuum adsorption assembly is arranged on the grinding table, the vacuum adsorption assembly includes two groups of vacuum adsorption units, a negative pressure unit and a flipping unit, the vacuum adsorption unit includes a suction disc, the suction disc can rotate, a plurality of adsorption holes are formed on the suction disc, the suction disc can move horizontally, and the flipping unit can make the two suction discs rotate;

[0010] During the rotation process, the two suction discs are in close contact with each other, and when the two suction discs rotate to the horizontal state, they are separated from each other;

[0011] The negative pressure unit includes a negative pressure pipe, the negative pressure pipe can move vertically and is communicated with the suction disc located below in the two vacuum adsorption units.

[0012] Preferably, the vacuum adsorption unit further includes a fixed frame, a rotation motor, a rotation gear, a rotation gear ring and a connecting pipe. The suction disc is rotatably connected in the fixed frame, the rotation motor is fixedly installed in the fixed frame, the rotation gear is fixedly installed at the output end of the rotation motor, the rotation gear ring is fixedly installed on the suction disc, the rotation gear and the rotation gear ring are meshed with each other, the connecting pipe is rotatably connected to the suction disc, and a sealing ring is fixedly installed on the connecting pipe.

[0013] Preferably, the vacuum adsorption unit further includes a sliding block, a sliding bar, and a release spring. The sliding block is fixedly installed on the fixed frame. The sliding bar is provided with a sliding groove corresponding to the sliding block. The sliding block is slidably fitted in the sliding groove. One end of the release spring is fixedly installed on the side of the sliding bar close to another vacuum adsorption unit, and the other end of the release spring is fixedly installed on the fixed frame.

[0014] Preferably, the vacuum adsorption unit further includes a translation cylinder. The output end of the translation cylinder is fixedly installed on the stabilizing plate, and the translation cylinder is fixedly installed on the stabilizing frame.

[0015] Preferably, the flipping unit includes an installation housing, a stabilizing plate, a stabilizing bar, a stabilizing frame, a flipping ring, a flipping plate, and a flipping motor. The installation housing is fixedly installed on the grinding table. The stabilizing plate is fixedly installed on the sliding bar. The stabilizing bar is fixedly installed on the stabilizing frame. The sliding bar and the stabilizing plate are both provided with stabilizing grooves. The stabilizing bar is slidably fitted in the stabilizing grooves. The sliding bar and the stabilizing plate slide along the stabilizing bar. The flipping ring and the flipping plate are fixedly installed on the stabilizing frame, and the flipping motor is fixedly installed on the grinding table.

[0016] Preferably, the flipping unit further includes a flipping belt member, a pressing plate, and two pressing rods. The flipping belt member includes a driving pulley, a driven pulley, and a driving belt. The driving pulley is fixedly installed on the flipping plate. The driven pulley is fixedly installed on the output end of the flipping motor. The driving belt is connected between the driving pulley and the driven pulley. The pressing plate is fixedly installed on the grinding table. The two pressing rods are fixedly installed on the pressing plate. The fixed frame is provided with a pressing groove corresponding to the pressing rod. The pressing groove is semicircular. The fixed frame is provided with a release groove, and the release groove communicates with the pressing groove. When the pressing rod is located in the release groove, the fixed frame is in a horizontal state.

[0017] Preferably, the negative pressure unit further includes a vacuum pump, a negative pressure hose, a pushing plate, and a pushing cylinder. A grinding box is fixedly installed below the grinding table. The vacuum pump is fixedly installed in the grinding box. The grinding table is provided with a moving hole. The negative pressure pipe is slidably fitted in the moving hole. The pushing plate is fixedly installed on the negative pressure pipe. The pushing cylinder is fixedly installed on the grinding table. The output end of the pushing cylinder is fixedly installed on the pushing plate. One end of the negative pressure hose is fixedly installed at the bottom of the negative pressure pipe, and the other end of the negative pressure hose is fixedly communicated with the vacuum pump.

[0018] Preferably, a number of grinding components are provided on the grinding table. The grinding component includes a fixing column, a fixing seat, and a fixing cylinder. The fixing column is fixedly installed on the grinding table. The fixing seat is connected to the fixing column by bolts. The fixing cylinder is fixedly installed on the fixing seat. The grinding wheel is arranged at the output end of the fixing cylinder.

[0019] Preferably, the grinding component further includes a grinding motor, a driving gear, a driven gear, a grinding shaft, a fixing frame, and a grinding wheel. The fixing frame is fixedly installed at the output end of the fixing cylinder. The grinding motor is fixedly installed on the fixing frame. The driving gear is fixedly installed at the output end of the grinding motor. The grinding shaft is rotatably connected to the fixing frame. The driven gear is fixedly installed on the grinding shaft. The driving gear and the driven gear are meshed with each other. The grinding wheel is fixedly installed at the end of the grinding shaft.

[0020] A trimming method for a sealing ring, using the above-mentioned grinding trimming machine tool, includes the following steps:

[0021] The suction cup located above moves horizontally, exposing the suction cup located below;

[0022] Place the sealing ring on the suction cup located below. The negative pressure pipe is communicated with the suction cup to form negative pressure in the suction holes, and the sealing ring is adsorbed on the suction cup;

[0023] The grinding wheel rotates to grind the inner ring, outer ring, and top of the sealing ring, and grind off the burrs on the upper surface of the sealing ring;

[0024] The suction cup located above moves horizontally to above the sealing ring;

[0025] The flipping unit drives the two suction cups to rotate, so that the positions of the two suction cups are exchanged, the sealing ring is flipped, and the two suction cups move closer to each other during the rotation process to press the sealing ring between them;

[0026] After the sealing ring is flipped, the suction cup located above moves horizontally, exposing the suction cup and the sealing ring located below;

[0027] The grinding wheel rotates to grind off the burrs on the other surface of the sealing ring.

[0028] In summary, the technical effects and advantages of the present invention:

[0029] 1. In the present invention, the workpiece is adsorbed on the adsorption disc, making the workpiece more stable during the grinding process and not prone to shaking. After the upper surface of the workpiece is ground, the two adsorption discs are flipped to drive the workpiece to flip, and the other side of the workpiece is ground, resulting in a better grinding effect on the workpiece. The operation of manually flipping the workpiece is omitted, improving the grinding efficiency, saving time and effort. When the workpiece is flipped, the two adsorption discs approach each other to clamp the workpiece, preventing the workpiece from falling during the flipping process and improving the stability.

[0030] 2. In the present invention, the rotation motor drives the rotation gear to rotate, the rotation gear drives the rotation ring gear to rotate, the rotation ring gear drives the adsorption disc to rotate, and the adsorption disc drives the adsorbed workpiece to rotate, enabling the grinding wheel to contact and grind different positions of the workpiece, resulting in a better grinding effect on the workpiece and fewer dead corners.

[0031] 3. In the present invention, the pushing cylinder drives the pushing plate to move vertically, and the pushing plate drives the negative pressure pipe to move vertically. When the adsorption disc flips, the negative pressure pipe does not block the rotation of the adsorption disc. The fixing cylinder can drive the grinding wheel to move, enabling the grinding wheel to extend into the grinding position of the workpiece to grind the workpiece and then retract, without blocking the flipping of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 It is a schematic structural diagram of the grinding table, vacuum adsorption assembly, grinding box and grinding assembly in the present invention;

[0034] Figure 2 It is a schematic structural diagram of the vacuum adsorption unit, negative pressure unit, flipping unit and grinding table in the present invention;

[0035] Figure 3 It is a schematic structural diagram of the negative pressure pipe, vacuum pump, negative pressure hose, pushing plate and pushing cylinder in the present invention;

[0036] Figure 4 It is a schematic structural diagram of the installation housing, stabilizing frame and flipping plate in the present invention;

[0037] Figure 5 For the present invention Figure 4 The enlarged view of part A;

[0038] Figure 6 It is a schematic structural diagram of the adsorption disc, fixing frame, translation cylinder and stabilizing plate in the present invention;

[0039] Figure 7 Schematic structural diagram of the suction disc, fixed frame, sliding block, sliding bar and release spring in the present invention;

[0040] Figure 8 Schematic structural diagram of the suction disc, fixed frame, rotating motor, rotating gear and rotating ring gear in the present invention;

[0041] Figure 9 Schematic structural diagram of the fixed column, fixed seat, fixed cylinder and grinding wheel in the present invention;

[0042] Figure 10 Schematic structural diagram of the fixed cylinder, grinding motor, driving gear, driven gear, grinding shaft and grinding wheel in the present invention.

[0043] In the figure: 1, grinding table; 2, vacuum adsorption assembly; 21, vacuum adsorption unit; 210, translation cylinder; 211, suction disc; 212, fixed frame; 2121, pressing groove; 2122, release groove; 213, rotating motor; 214, rotating gear; 215, rotating ring gear; 216, connecting pipe; 217, sliding block; 218, sliding bar; 219, release spring; 22, negative pressure unit; 221, negative pressure pipe; 222, vacuum pump; 223, negative pressure hose; 224, pushing plate; 225, pushing cylinder; 23, flipping unit; 230, mounting shell; 231, stabilizing plate; 232, stabilizing bar; 233, stabilizing frame; 234, flipping ring; 235, flipping plate; 236, flipping motor; 237, flipping belt member; 238, pressing plate; 239, pressing rod; 3, grinding box; 4, grinding assembly; 41, fixed column; 42, fixed seat; 43, fixed cylinder; 44, grinding motor; 45, driving gear; 46, driven gear; 47, grinding shaft; 48, fixing frame; 49, grinding wheel. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Embodiment 1: Refer to Figures 1 - 10A grinding and trimming machine tool shown in the figure comprises a grinding table 1, on which a rotatable grinding wheel 49 is arranged, and on which a vacuum adsorption assembly 2 is arranged, and the vacuum adsorption assembly 2 comprises two groups of vacuum adsorption units 21, a negative pressure unit 22 and a flip unit 23, and the vacuum adsorption unit 21 comprises an adsorption disk 211, and the adsorption disk 211 can rotate, and a plurality of adsorption holes are opened on the adsorption disk 211, and the adsorption disk 211 can move horizontally, and the flip unit 23 can make the two adsorption disks 211 rotate;

[0046] The two adsorption plates 211 are pressed against each other during the rotation process, and the two adsorption plates 211 are separated from each other when they are rotated to a horizontal state;

[0047] The negative pressure unit 22 includes a negative pressure pipe 221 , which can move vertically and is connected to the suction disk 211 located at the lower side of the two vacuum suction units 21 .

[0048] The suction disk 211 located at the top moves horizontally to expose the suction disk 211 located at the bottom, and the workpiece is placed on the suction disk 211 located at the bottom. The negative pressure pipe 221 is connected to the suction disk 211, so that negative pressure is formed in the suction hole, and the workpiece is adsorbed on the suction disk 211. The grinding wheel 49 rotates to grind the inner ring, outer ring and top of the workpiece, and grinds off the burrs on the upper surface of the workpiece. The suction disk 211 located at the top moves horizontally to the top of the workpiece, and the negative pressure pipe 221 moves downward. The flipping unit 23 drives the two suction disks 211 to rotate, so that the positions of the two suction disks 211 are swapped, and the workpiece is flipped. The two suction disks 211 move closer to each other during the rotation process to press the workpiece between them. After the workpiece is flipped, the suction disk 211 located at the top moves horizontally to expose the suction disk 211 and the workpiece located at the bottom, and the negative pressure pipe 221 moves upward to be connected to the suction disk 211 located at the bottom, and the grinding wheel 49 rotates to grind off the burrs on the other surface of the workpiece.

[0049] The workpiece is adsorbed on the adsorption plate 211, so that the workpiece is more stable and not easy to shake during the grinding process. After the upper surface of the workpiece is polished, the two adsorption plates 211 are turned over to drive the workpiece to turn over, and the other side of the workpiece is polished, which has a better grinding effect on the workpiece, eliminates the operation of manually turning the workpiece, improves the grinding efficiency, saves time and effort, and when the workpiece is turned over, the two adsorption plates 211 are close to each other to press the workpiece tightly to prevent the workpiece from falling during the turning process and improve stability.

[0050] Example 2, reference Figures 1 - 10, the vacuum adsorption unit 21 further includes a fixed frame 212, a rotating motor 213, a rotating gear 214, a rotating gear ring 215 and a connecting pipe 216. The adsorption disc 211 is rotatably connected within the fixed frame 212. The rotating motor 213 is fixedly installed within the fixed frame 212. The rotating gear 214 is fixedly installed at the output end of the rotating motor 213. The rotating gear ring 215 is fixedly installed on the adsorption disc 211. The rotating gear 214 meshes with the rotating gear ring 215. The connecting pipe 216 is rotatably connected to the adsorption disc 211, and a sealing ring is fixedly installed on the connecting pipe 216.

[0051] The rotating motor 213 drives the rotating gear 214 to rotate. The rotating gear 214 drives the rotating gear ring 215 to rotate. The rotating gear ring 215 drives the adsorption disc 211 to rotate. The adsorption disc 211 drives the adsorbed workpiece to rotate, enabling the grinding wheel 49 to contact and grind different positions of the workpiece, resulting in a better grinding effect on the workpiece with fewer dead corners.

[0052] The negative pressure pipe 221 moves upward to abut against the corresponding connecting pipe 216. The negative pressure pipe 221 abuts against and communicates with the connecting pipe 216. The adsorption disc 211 is rotatably connected to the connecting pipe 216. The adsorption holes on the adsorption disc 211 communicate with the connecting pipe 216, enabling the negative pressure pipe 221 to maintain communication with the adsorption holes while the adsorption disc 211 is rotating, keeping negative pressure within the adsorption holes to adsorb the workpiece.

[0053] Example 3, refer to Figures 1 - 10 , the vacuum adsorption unit 21 further includes a sliding block 217, a sliding strip 218 and a release spring 219. The sliding block 217 is fixedly installed on the fixed frame 212. The sliding strip 218 is provided with a sliding groove corresponding to the sliding block 217. The sliding block 217 is slidably fitted within the sliding groove. One end of the release spring 219 is fixedly installed on the side of the sliding strip 218 close to another vacuum adsorption unit 21, and the other end of the release spring 219 is fixedly installed on the fixed frame 212.

[0054] When the two adsorption discs 211 are flipped, the negative pressure pipe 221 moves downward without interfering with the rotation of the adsorption disc 211. The two fixed frames 212 and the adsorption discs 211 move closer to each other. The fixed frame 212 drives the sliding block 217 to slide within the sliding groove, making the movement of the adsorption disc 211 more stable and less likely to shake. At the same time, the fixed frame 212 compresses the release spring 219 to store energy in the release spring 219. When the adsorption disc 211 flips to the horizontal state, the release spring 219 drives the two adsorption discs 211 to move away from each other, causing the upper adsorption disc 211 to move horizontally after detaching from the workpiece, exposing the workpiece for grinding. Then the negative pressure pipe 221 moves upward to communicate with the adsorption holes on the adsorption disc 211 to adsorb the workpiece.

[0055] Example 4, refer to Figures 1 - 10, the vacuum adsorption unit 21 further includes a translation cylinder 210. The output end of the translation cylinder 210 is fixedly installed on the stable plate 231, and the translation cylinder 210 is fixedly installed on the stable frame 233.

[0056] The translation cylinder 210 drives the fixed frame 212 to move horizontally, and the fixed frame 212 drives the adsorption disc 211 to move horizontally.

[0057] Example 5, refer to Figures 1 - 10 , the flipping unit 23 includes a mounting housing 230, a stable plate 231, a stable strip 232, a stable frame 233, a flipping ring 234, a flipping plate 235 and a flipping motor 236. The mounting housing 230 is fixedly installed on the grinding table 1, the stable plate 231 is fixedly installed on the sliding strip 218, the stable strip 232 is fixedly installed on the stable frame 233. Stable grooves are provided on both the sliding strip 218 and the stable plate 231, and the stable strip 232 is slidably engaged in the stable grooves. The sliding strip 218 and the stable plate 231 slide along the stable strip 232. The flipping ring 234 and the flipping plate 235 are fixedly installed on the stable frame 233, and the flipping motor 236 is fixedly installed on the grinding table 1.

[0058] The flipping motor 236 drives the flipping plate 235 to rotate, the flipping plate 235 drives the stable frame 233 to rotate, the stable frame 233 drives the fixed frame 212 to rotate through the stable plate 231 and the sliding strip 218, and the fixed frame 212 drives the adsorption disc 211 to rotate, so that the adsorption disc 211 flips. When the fixed frame 212 and the adsorption disc 211 move horizontally, the translation cylinder 210 drives the stable plate 231 to move horizontally, the stable plate 231 drives the fixed frame 212 to move horizontally, and the fixed frame 212 drives the adsorption disc 211 to move horizontally. The stable strip 232 slides in the stable grooves on the sliding strip 218 and the stable plate 231, making the movement of the sliding strip 218 and the fixed frame 212 more stable.

[0059] Example 6, refer to Figures 1 - 10 , the flipping unit 23 further includes a flipping belt member 237, a pressing plate 238 and two pressing rods 239. The flipping belt member 237 includes a driving pulley, a driven pulley and a driving belt. The driving pulley is fixedly installed on the flipping plate 235, the driven pulley is fixedly installed on the output end of the flipping motor 236, and the driving belt is connected between the driving pulley and the driven pulley. The pressing plate 238 is fixedly installed on the grinding table 1, and two pressing rods 239 are fixedly installed on the pressing plate 238. A pressing groove 2121 is provided on the fixed frame 212 corresponding to the pressing rod 239, and the pressing groove 2121 is semicircularly arranged. A release groove 2122 is provided on the fixed frame 212, and the release groove 2122 communicates with the pressing groove 2121. When the pressing rod 239 is located in the release groove 2122, the fixed frame 212 is in a horizontal state.

[0060] The translation cylinder 210 drives the sliding bar 218 to move horizontally. The sliding bar 218 drives the fixed frame 212 to move horizontally. The fixed frame 212 drives the suction cups 211 to move horizontally, so that the two suction cups 211 are located above and below the workpiece. The two pressing rods 239 enter the release slots 2122 opened in the corresponding fixed frames 212. The flipping motor 236 drives the driving pulley to rotate. The driving pulley drives the driving belt to rotate. The driving belt makes the driven pulley rotate. The driven pulley drives the flipping plate 235 to rotate. The flipping plate 235 drives the two fixed frames 212 to rotate. As the fixed frames 212 rotate, the pressing rods 239 move from the release slots 2122 into the pressing slots 2121. The pressing rods 239 squeeze the fixed frames 212 to move, so that the two fixed frames 212 move closer to each other. The two fixed frames 212 drive the corresponding suction cups 211 to move closer to each other. The two suction cups 211 press the workpiece between them to prevent the workpiece from detaching during flipping. When the two fixed frames 212 rotate to the horizontal state again, the two pressing rods 239 enter the corresponding release slots 2122. The release springs 219 push the fixed frames 212 to move, so that the two fixed frames 212 move away from each other. The suction cup 211 located above the workpiece detaches from the workpiece and moves horizontally, exposing the workpiece for grinding.

[0061] Example 7, refer to Figures 1 - 10 , the negative pressure unit 22 further includes a vacuum pump 222, a negative pressure hose 223, a push plate 224 and a push cylinder 225. A grinding box 3 is fixedly installed below the grinding table 1. The vacuum pump 222 is fixedly installed in the grinding box 3. A moving hole is opened on the grinding table 1. The negative pressure pipe 221 is slidably fitted in the moving hole. The push plate 224 is fixedly installed on the negative pressure pipe 221. The push cylinder 225 is fixedly installed on the grinding table 1. The output end of the push cylinder 225 is fixedly installed on the push plate 224. One end of the negative pressure hose 223 is fixedly installed at the bottom of the negative pressure pipe 221. The other end of the negative pressure hose 223 is fixedly connected and communicated with the vacuum pump 222.

[0062] The vacuum pump 222 pumps the negative pressure hose 223 to negative pressure. The negative pressure hose 223 pumps the negative pressure pipe 221 to negative pressure. After the negative pressure pipe 221 moves upward, it abuts against the corresponding connecting pipe 216, pumping the connecting pipe 216 to negative pressure. The connecting pipe 216 pumps the suction holes to negative pressure. The suction holes adsorb the workpiece. The push cylinder 225 drives the push plate 224 to move vertically. The push plate 224 drives the negative pressure pipe 221 to move vertically. When the suction cup 211 flips, the negative pressure pipe 221 does not block the rotation of the suction cup 211.

[0063] Example 8, refer to Figures 1 - 10, several grinding components 4 are arranged on the grinding table 1. The grinding component 4 includes a fixing column 41, a fixing seat 42 and a fixing cylinder 43. The fixing column 41 is fixedly installed on the grinding table 1. The fixing seat 42 is connected to the fixing column 41 by bolts. The fixing cylinder 43 is fixedly installed on the fixing seat 42. The grinding wheel 49 is arranged at the output end of the fixing cylinder 43.

[0064] The fixing cylinder 43 can drive the grinding wheel 49 to move, so that the grinding wheel 49 can extend into the grinding position of the workpiece to grind the workpiece, and then can retract without blocking the flipping of the workpiece.

[0065] Example 9, refer to Figures 1 - 10 , the grinding component 4 further includes a grinding motor 44, a driving gear 45, a driven gear 46, a grinding shaft 47, a fixing frame 48 and a grinding wheel 49. The fixing frame 48 is fixedly installed at the output end of the fixing cylinder 43. The grinding motor 44 is fixedly installed on the fixing frame 48. The driving gear 45 is fixedly installed at the output end of the grinding motor 44. The grinding shaft 47 is rotatably connected to the fixing frame 48. The driven gear 46 is fixedly installed on the grinding shaft 47. The driving gear 45 and the driven gear 46 are meshed with each other. The grinding wheel 49 is fixedly installed at the end of the grinding shaft 47.

[0066] The grinding motor 44 drives the driving gear 45 to rotate. The driving gear 45 drives the driven gear 46 to rotate. The driven gear 46 drives the grinding shaft 47 to rotate. The grinding shaft 47 drives the grinding wheel 49 to rotate. The rotation of the grinding wheel 49 grinds the workpiece, and the grinding effect on the workpiece is better and the grinding speed is faster.

[0067] A trimming method for a sealing ring uses the above-mentioned grinding trimming machine tool, and includes the following steps:

[0068] The suction disc 211 located above moves horizontally to expose the suction disc 211 located below;

[0069] Place the sealing ring on the suction disc 211 located below. The negative pressure pipe 221 is communicated with the suction disc 211 to form negative pressure in the suction holes, and adsorb the sealing ring on the suction disc 211;

[0070] The grinding wheel 49 rotates to grind the inner ring, outer ring and top of the sealing ring, and grind off the burrs on the upper surface of the sealing ring;

[0071] The suction disc 211 located above moves horizontally above the sealing ring;

[0072] The flipping unit 23 drives the two suction discs 211 to rotate, so that the positions of the two suction discs 211 are exchanged, the sealing ring is flipped, and the two suction discs 211 move closer to each other during the rotation to press the sealing ring between them;

[0073] After the sealing ring is turned over, the suction cup 211 located above moves horizontally, exposing the suction cup 211 and the sealing ring located below;

[0074] The grinding wheel 49 rotates to grind off the burrs on the other surface of the sealing ring.

[0075] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grinding and trimming machine tool, comprising a grinding table, characterized in that: The grinding table is provided with a rotatable grinding wheel, and the grinding table is provided with a vacuum adsorption assembly, which includes two groups of vacuum adsorption units, a negative pressure unit and a flip unit, and the vacuum adsorption unit includes an adsorption disk, which is rotatable, and has a plurality of adsorption holes, and the adsorption disk can move horizontally, and the flip unit can make the two adsorption disks rotate; The two adsorption plates are pressed against each other during the rotation process, and are separated from each other when the two adsorption plates are rotated to a horizontal state; The negative pressure unit includes a negative pressure pipe, which can move vertically and is connected to the adsorption disk located at the lower part of the two vacuum adsorption units; The vacuum adsorption unit further comprises a fixed frame, a rotating motor, a rotating gear, a rotating gear ring and a connecting pipe, the adsorption plate is rotatably connected in the fixed frame, the rotating motor is fixedly installed in the fixed frame, the rotating gear is fixedly installed at the output end of the rotating motor, the rotating gear ring is fixedly installed on the adsorption plate, the rotating gear and the rotating gear ring are meshed, the connecting pipe is rotatably connected to the adsorption plate, and a sealing ring is fixedly installed on the connecting pipe; The vacuum adsorption unit further comprises a sliding block, a sliding bar and a release spring, wherein the sliding block is fixedly mounted on the fixed frame, the sliding bar is provided with a sliding groove corresponding to the sliding block, the sliding block is slidably fitted in the sliding groove, one end of the release spring is fixedly mounted on a side of the sliding bar close to another vacuum adsorption unit, and the other end of the release spring is fixedly mounted on the fixed frame; The flip unit includes an installation shell, a stabilizing plate, a stabilizing bar, a stabilizing frame, a flip ring, a flip plate and a flip motor. The installation shell is fixedly installed on the grinding table, the stabilizing plate is fixedly installed on the sliding bar, the stabilizing bar is fixedly installed on the stabilizing frame, the sliding bar and the stabilizing plate are both provided with stabilizing grooves, the sliding bar and the stabilizing plate slide along the stabilizing bar, the flip ring and the flip plate are fixedly installed on the stabilizing frame, and the flip motor is fixedly installed on the grinding table.

2. A grinding and trimming machine tool according to claim 1, characterized in that: The vacuum adsorption unit further comprises a translation cylinder, an output end of which is fixedly mounted on the stabilizing plate, and the translation cylinder is fixedly mounted on the stabilizing frame.

3. The grinding and trimming machine tool according to claim 1, characterized in that: The flipping unit also includes a flipping belt member, a clamping plate and two clamping rods. The flipping belt member includes a driving pulley, a passive pulley and a driving belt. The driving pulley is fixedly mounted on the flipping plate, the passive pulley is fixedly mounted on the output end of the flipping motor, the driving belt is connected to the driving pulley and the passive pulley, the clamping plate is fixedly mounted on the grinding table, the two clamping rods are fixedly mounted on the clamping plate, a clamping groove is provided on the fixed frame corresponding to the clamping rod, the clamping groove is semicircular, a release groove is provided on the fixed frame, the release groove is connected to the clamping groove, and when the clamping rod is located in the release groove, the fixed frame is in a horizontal state.

4. The grinding and trimming machine tool according to claim 1, characterized in that: The negative pressure unit also includes a vacuum pump, a negative pressure hose, a pushing plate and a pushing cylinder. A grinding box is fixedly installed under the grinding table. The vacuum pump is fixedly installed in the grinding box. A movable hole is opened on the grinding table. The negative pressure tube is slidably fitted in the movable hole. The pushing plate is fixedly installed on the negative pressure tube. The pushing cylinder is fixedly installed on the grinding table. The output end of the pushing cylinder is fixedly installed on the pushing plate. One end of the negative pressure hose is fixedly installed on the bottom of the negative pressure tube, and the other end of the negative pressure hose is fixedly connected to the vacuum pump.

5. The grinding and trimming machine tool according to claim 1, characterized in that: A plurality of grinding components are arranged on the grinding table, and the grinding components include a fixed column, a fixed seat and a fixed cylinder. The fixed column is fixedly installed on the grinding table, the fixed seat is connected to the fixed column by bolts, the fixed cylinder is fixedly installed on the fixed seat, and the grinding wheel is arranged at the output end of the fixed cylinder.

6. A grinding and trimming machine tool according to claim 5, characterized in that: The grinding assembly also includes a grinding motor, a driving gear, a passive gear, a grinding shaft, a fixed frame and a grinding wheel. The fixed frame is fixedly mounted on the output end of the fixed cylinder, the grinding motor is fixedly mounted on the fixed frame, the driving gear is fixedly mounted on the output end of the grinding motor, the grinding shaft is rotatably connected to the fixed frame, the passive gear is fixedly mounted on the grinding shaft, the driving gear and the passive gear are meshed, and the grinding wheel is fixedly mounted on the end of the grinding shaft.

7. A method for trimming a sealing ring, using the grinding and trimming machine tool as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: The adsorption plate located above moves horizontally to expose the adsorption plate located below; The sealing ring is placed on the adsorption plate at the bottom, and the negative pressure pipe is connected to the adsorption plate, so that negative pressure is formed in the adsorption hole, and the sealing ring is adsorbed on the adsorption plate; The grinding wheel rotates to grind the inner ring, outer ring and top of the sealing ring, and grinds off the burrs on the upper surface of the sealing ring; The adsorption plate located above moves horizontally to above the sealing ring, and the negative pressure tube moves downward; The flip unit drives the two adsorption plates to rotate, so that the positions of the two adsorption plates are swapped, and the sealing ring is flipped. The two adsorption plates move closer to each other during the rotation process, and the sealing ring between them is pressed tightly; After the sealing ring is turned over, the adsorption plate located above moves horizontally to expose the adsorption plate and the sealing ring located below, and the negative pressure tube moves upward to contact and communicate with the adsorption plate located below; The grinding wheel rotates to grind off the burrs on the other surface of the sealing ring.

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