An automated grinding equipment for valve sealing surfaces

Abstract

This invention discloses an automated grinding device for valve sealing surfaces in the field of valve processing technology. It includes a base, a moving assembly, and two workpiece positioning mechanisms. The moving assembly is equipped with a pressure plate and a grinding assembly. The workpiece positioning mechanism includes a bidirectional rotating assembly, a rotating table, a placement assembly, a driving assembly, a first limiting assembly, and a second limiting assembly. This invention achieves dual-station processing by setting up two workpiece positioning mechanisms, allowing loading / unloading and grinding at different stations to occur simultaneously. During loading / unloading, the disc is in a horizontal state, facilitating positioning. During grinding, the disc workpiece and grinding disc are in an inclined state, allowing grinding waste to fall directly. The placement assembly provides placement and support, and the first and second limiting assemblies position the disc's mounting cylinder in different directions. The pressure plate positions the top of the disc, further improving the positioning effect.

Description

Technical Field

[0001] This invention relates to the field of valve processing technology, specifically to an automated grinding device for valve sealing surfaces. Background Technology

[0002] Valves are control components in fluid transport systems, possessing functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, and pressure relief. They come in a wide variety of types and specifications. Among them, butterfly valves are used for the on / off control of low-pressure pipeline media. The closing element of a butterfly valve, namely the valve disc or butterfly plate, is disc-shaped and rotates around the valve shaft to achieve opening and closing.

[0003] The sealing surface of a butterfly valve is the side contact surface of the butterfly plate. Therefore, it is usually necessary to provide a two-stage stepped surface on the circumferential side of the butterfly plate, and to install a cylinder seat and mounting cylinder on the butterfly plate. Structures such as rotating shafts are mounted through the mounting cylinder. Figure 16 , Figure 17 As shown, the first step surface is used to install the sealing ring, and the second step surface is provided with multiple mounting holes for installing the annular clamp. The sealing ring is fixed to the side of the butterfly plate by the annular clamp and the butterfly plate body so as to play a sealing role during operation.

[0004] Therefore, during the processing of the butterfly plate, after machining the stepped surface and mounting holes, it is necessary to further polish the stepped surface on the side of the butterfly plate to improve the surface quality and the positional accuracy of the sealing ring and annular clamp during installation.

[0005] Common butterfly plate grinding devices generally include a positioning structure and a grinding structure. For example, a butterfly plate sealing surface automatic grinding processing equipment with patent publication number CN110549213B mainly includes a chassis, an electric turntable located in the middle of the chassis, arc-shaped slide rails located on both sides inside the chassis, positioning devices fixed to the left and right ends of the electric turntable, and support frames fixed to the left and right ends of the electric turntable. Two layer-by-layer grinding devices are installed at the front and rear ends of the chassis. The positioning device grinds the inside of the butterfly plate's shaft hole, and the electric turntable and positioning device drive the butterfly plate to rotate back and forth so that the arc edges on both sides of the butterfly plate can be ground by the layer-by-layer grinding devices.

[0006] The above-mentioned device can perform grinding on the sealing surface of the butterfly plate. However, the butterfly plate can only rotate back and forth within a certain angle. Therefore, it can only grind the side part of the butterfly plate and cannot grind the sealing surface of the annular butterfly plate. Moreover, when the butterfly plate is in a horizontal state during grinding, the waste dust generated is easy to splash everywhere and fall onto the grinding structure or the butterfly plate body, affecting subsequent processing and treatment.

[0007] Based on this, the present invention designs an automated grinding device for valve sealing mating surfaces to solve the above problems. Summary of the Invention

[0008] The purpose of this invention is to provide an automated grinding device for valve sealing mating surfaces to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] An automated grinding device for valve sealing mating surfaces includes a base and fixed frames on both sides of the top of the base. A workpiece positioning mechanism is provided on the top surface of the base corresponding to the position between the two fixed frames, and a grinding component is provided above the workpiece positioning mechanism.

[0011] Two workpiece positioning mechanisms are symmetrically arranged, and each workpiece positioning mechanism includes a bidirectional rotating component connected to the base and a circular rotating platform connected to the top of the bidirectional rotating component.

[0012] The top of the rotating platform is symmetrically provided with first limiting components on both sides, and second limiting components are respectively provided on the top of the opposite sides of the two first limiting components. A driving component is provided in the middle of the top of the rotating platform, and placement components are symmetrically provided on both sides of the driving component. The first and second limiting components are connected to the driving component.

[0013] The top of the fixed frame is provided with a movable component, and an inclined movable seat is connected to the movable component. The bottom of the movable seat is provided with a circular pressure plate connected to it via a rotating telescopic component. The pressure plate is parallel to the movable seat. The grinding component is connected to the movable component and is located behind the pressure plate. The grinding component includes a grinding disc and a blow pipe, and the grinding disc is parallel to the pressure plate.

[0014] The base has a dust collection component on the top rear side, the grinding component is located above the dust collection component, and the inner side of the rotating table is close to the dust collection component and higher than the front side of the dust collection component.

[0015] Preferably, the first limiting component includes two vertical fixed columns symmetrically fixed to the top of the rotating platform, a driving component connected between the two fixed columns, and an adjusting seat slidably connected to the top of the rotating platform on the inner side of the fixed columns. The adjusting seat is correspondingly connected to the driving component. The adjusting seat has a transmission cavity, a second transmission gear is rotatably connected in the transmission cavity, a third transmission gear is meshed at the bottom of the second transmission gear, a transmission cylinder is rotatably connected at the center of the third transmission gear, and the transmission cylinder is correspondingly connected to the driving component. The second limiting component is located at the top center of the adjusting seat and is correspondingly connected to the second transmission gear.

[0016] Preferably, the second limiting component includes a threaded cylinder rotatably connected to the middle of the top of the adjusting seat. A first transmission gear is fixed on the threaded cylinder, and the first transmission gear meshes with the top of a second transmission gear. An adjusting screw is threadedly connected to the threaded cylinder. One end of the adjusting screw extends out of the threaded cylinder and is fixed with a movable ring platform. A fixed ring platform is provided on the side wall of the adjusting seat corresponding to the outer position of the threaded cylinder. Multiple arc-shaped positioning plates are evenly provided along the circumferential direction between the fixed ring platform and the movable ring platform. A rubber pad is provided on the outer surface of the positioning plate. Two symmetrical and inclined push-pull rods are rotatably connected to the inner surface of the positioning plate. Multiple grooves are evenly provided along the circumferential direction on the fixed ring platform and the movable ring platform, and the other end of the push-pull rod is rotatably connected to the corresponding groove.

[0017] Preferably, the drive assembly includes two axle mounting plates symmetrically fixed to the middle of the top of the rotating platform. The lower and upper parts of the two axle mounting plates are respectively rotatably connected to a first drive shaft and a second drive shaft. The two ends of the first drive shaft and the second drive shaft are rotatably connected to fixed columns on both sides.

[0018] The two sides of the first drive shaft are provided with threads of opposite directions and are respectively threaded to the lower part of the adjusting seats on both sides. The two sides of the second drive shaft are provided with multiple transmission grooves evenly along the circumferential direction. The second drive shaft passes through the transmission cylinders on both sides. Multiple transmission blocks are fixed on the inner side wall of the transmission cylinders and the transmission blocks are slidably connected in the transmission grooves.

[0019] A first gear is fixed on the first drive shaft, and a second gear meshes with the first gear. A third gear is fixed on the second drive shaft, and a fourth gear meshes with the third gear. Both the second and fourth gears are rotatably connected to the wheel and axle mounting plate and are respectively connected to a motor.

[0020] Preferably, the placement assembly includes connecting rings fixed to the upper part of the fixed column, horizontal fixed arc plates are fixed on both sides of the two connecting rings respectively, and a placement arc plate is connected above the fixed arc plate by a plurality of springs evenly arranged. A plurality of vertical guide shafts are evenly fixed at the bottom of the placement arc plate, and the bottom ends of the guide shafts pass through the fixed arc plate and are slidably connected to the fixed arc plate.

[0021] Preferably, the rotary telescopic assembly includes a rotary circular seat rotatably connected to a movable base. A plurality of spring rods are evenly arranged on the rotary circular seat along the circumferential direction. The bottom ends of the plurality of spring rods pass through the rotary circular seat and are fixedly connected to the top surface of the pressure plate. A spring plate is fixed to the top of the spring rods. The spring plate is connected to the top surface of the rotary circular seat through a spring. A first electromagnet and a second electromagnet are fixed to the bottom of the rotary circular seat and the top surface of the pressure plate, respectively. The first electromagnet and the second electromagnet are electrically connected to a power source and a switch.

[0022] Preferably, the grinding assembly includes two parallel first guide frames symmetrically fixed to the rear side of the movable base. The first guide frames are parallel to the movable base, and a sliding seat is slidably connected to the first guide frame. A through groove is provided in the sliding seat corresponding to the position of the first guide frame. A traveling gear is rotatably connected inside the through groove. The traveling gear is connected to a motor. A plurality of teeth are evenly provided at the bottom of the first guide frame, and the teeth mesh with the traveling gear.

[0023] A mounting plate is fixed between the lower parts of the two sliding seats. The bottom of the mounting plate is connected to a lifting plate via two lifting hydraulic rods. The grinding disc is rotatably connected to the middle of the bottom of the lifting plate, and a motor is connected to the top.

[0024] The two ends of the blowpipe are fixedly connected to the front sides of the two sliding seats through brackets, and multiple nozzles are evenly provided at the bottom of the blowpipe. One of the sliding seats is equipped with an air pump, and one end of the blowpipe is connected to the air pump through a pipe.

[0025] Preferably, a second guide frame is vertically fixed to the bottom rear end of the first guide frame, a guide rod is fixed between the middle rear sides of the two fixed frames, and the bottom ends of the two second guide frames are slidably connected to the guide rod.

[0026] Preferably, the bidirectional rotating assembly includes two symmetrically and parallelly arranged rotating frames. The inner ends of the rotating frames are rotatably connected to the top surface of the base, and a connecting plate is fixed between their rear ends. A gate-shaped mounting frame is fixed to the top of the two rotating frames. A central column is rotatably connected to the middle of the mounting frame. The rotating platform is fixed to the top of the central column. Multiple teeth are evenly fixed along the circumferential direction on the lower part of the side wall of the central column, and a drive gear is engaged through the teeth. The drive gear is connected to a motor, and the motor is fixed to the mounting frame.

[0027] The mounting bracket has symmetrically arranged and rotatably connected inclined adjustment rods at both ends. An adjustment block is rotatably connected to the outer end of the adjustment rod. An adjustment hydraulic rod is connected between the inner end of the adjustment block and the top of the base. The bottom of the connecting plate has a downward-facing groove corresponding to the position of the two adjustment hydraulic rods.

[0028] Preferably, the moving component includes two moving screws arranged in parallel and threadedly connected to the moving base. The two ends of the moving screws extend out of the moving base and are rotatably connected to the top of the corresponding fixed frame, and one end of the moving screw is connected to a motor.

[0029] Preferably, the dust collection assembly includes a waste trough fixed to the rear side of the top of the base. The top of the front side of the waste trough is lower than the top of the rear side. An arc-shaped collection filter screen is fixed in the waste trough, and the two ends of the collection filter screen are higher than the middle. A suction fan is provided on the rear side of the waste trough. Suction pipes are provided on both sides of the suction fan, and multiple suction ports are evenly provided on the suction pipes. The front end of the suction port extends into the lower part of the inner cavity of the waste trough.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] 1. This invention enables dual-station processing by setting two workpiece positioning mechanisms in the equipment. While one station is loading the material, the other station is simultaneously grinding the workpiece, thus shortening the interval between the two workpiece processing and improving processing efficiency.

[0032] 2. During loading and unloading, the rotating table and the disc plate are in a horizontal state, which facilitates the adjustment and positioning of the disc plate. During grinding, the disc plate workpiece and the grinding disc are in an inclined state, so that the waste generated during grinding can fall directly into the integrated component, avoiding the waste from falling into other positions of the equipment and workpiece.

[0033] 3. In this invention, while grinding is performed by the grinding component, the grinding area of ​​the disc plate is cleaned by blowing through the blow pipe, thereby improving the cleaning effect of the workpiece;

[0034] 4. The present invention provides placement and support through the placement component, and positions the mounting cylinder of the butterfly plate in different directions through the first limiting component and the second limiting component, and positions the top of the butterfly plate through the rotating telescopic component and the pressure plate, thereby further improving the positioning effect and the positional stability of the workpiece during grinding. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of the present invention;

[0037] Figure 2 This is a schematic diagram showing the positions of the rotating platform and the waste trough in this invention;

[0038] Figure 3 This is a schematic diagram of the structure of the base of the present invention;

[0039] Figure 4 This is a schematic diagram of the structure of the movable base of the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of the pressure plate of the present invention;

[0041] Figure 6 This is a schematic diagram of the structure of the grinding disc of the present invention;

[0042] Figure 7 This is a schematic diagram of the top structure of the rotating platform of the present invention;

[0043] Figure 8 This is a schematic diagram of the bottom structure of the rotating platform of the present invention;

[0044] Figure 9 This is a schematic diagram showing the tilt state of the rotating platform of the present invention;

[0045] Figure 10 This is a schematic diagram of the positioning plate of the present invention;

[0046] Figure 11 This is a schematic diagram of the internal structure of the adjusting seat of the present invention;

[0047] Figure 12 This is a schematic diagram of the structure of the threaded cylinder of the present invention;

[0048] Figure 13 for Figure 11 Schematic diagram of the structure at point A in the middle;

[0049] Figure 14 for Figure 12 Schematic diagram of the structure at point B;

[0050] Figure 15 This is a schematic diagram of the structure of the first drive shaft and the second drive shaft of the present invention;

[0051] Figure 16 This is a schematic diagram of the top structure of the butterfly plate of the present invention;

[0052] Figure 17 This is a schematic diagram of the bottom structure of the butterfly plate of the present invention.

[0053] The attached diagram lists the components represented by each number as follows:

[0054] 100-Base, 101-Fixed frame, 102-Moving screw, 103-Guide rod, 104-Waste trough, 105-Collection filter screen, 106-Fan suction fan, 107-Suction pipe;

[0055] 200-Moving seat, 201-Rotating round seat, 202-Spring rod, 203-Spring plate, 204-Pressure plate, 205-First electromagnet, 206-Second electromagnet;

[0056] 300-Sliding seat, 301-First guide frame, 302-Second guide frame, 303-Grinding disc, 304-Traveling gear, 305-Mounting horizontal plate, 306-Lifting hydraulic rod, 307-Lifting horizontal plate, 308-Blow pipe, 309-Air pump;

[0057] 400-Rotating table, 401-Fixed column, 402-Mounting bracket, 403-Rotating bracket, 404-Connecting plate, 405-Adjusting connecting rod, 406-Adjusting block, 407-Adjusting hydraulic rod, 408-Center column, 409-Drive gear;

[0058] 500-Adjusting seat, 501-Transmission cylinder, 502-Transmission block, 503-Second transmission gear, 504-Third transmission gear;

[0059] 600 - Placement of arc plate, 601 - Guide shaft, 602 - Fixing arc plate, 603 - Support rod, 604 - Connecting hoop;

[0060] 700-Positioning plate, 701-Fixed ring platform, 702-Moving ring platform, 703-Adjusting screw, 704-Threaded cylinder, 705-First transmission gear, 706-Push-pull rod;

[0061] 800-First drive shaft, 801-Second drive shaft, 802-Transmission groove, 803-First gear, 804-Second gear, 805-Third gear, 806-Fourth gear, 807-Wheel axle mounting plate;

[0062] 900-Butterfly plate, 901-Mounting cylinder, 902-Cylinder base, 903-First step surface, 904-Second step surface. Detailed Implementation

[0063] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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.

[0064] Example 1: Please refer to the accompanying drawings. This invention provides a technical solution:

[0065] An automated grinding device for valve sealing surfaces, such as Figure 1 , Figure 2 As shown, it includes a base 100 and a fixing bracket 101 fixed to both sides of the top of the base 100. A workpiece positioning mechanism is provided on the top surface of the base 100 at the position between the two fixing brackets 101. A grinding component is provided above the workpiece positioning mechanism.

[0066] Two workpiece positioning mechanisms are symmetrically arranged, and each workpiece positioning mechanism includes a bidirectional rotating component connected to the base 100 and a circular rotating table 400 connected to the top of the bidirectional rotating component.

[0067] The top of the rotating platform 400 is symmetrically provided with first limiting components on both sides, and the top of the opposite sides of the two first limiting components is respectively provided with second limiting components. The top of the rotating platform 400 is provided with a driving component in the middle, and the two sides of the driving component are symmetrically provided with placement components. The first limiting components and the second limiting components are both connected to the driving component.

[0068] The top of the fixed frame 101 is provided with a movable component, and an inclined movable seat 200 is connected to the movable component. The bottom of the movable seat 200 is provided with a circular pressure plate 204 connected by a rotating telescopic component. The pressure plate 204 is parallel to the movable seat 200. The grinding component is connected to the movable component and is located behind the pressure plate 204. The grinding component includes a grinding disc 303 and a blow pipe 308, and the grinding disc 303 is parallel to the pressure plate 204.

[0069] A dust collection component is provided on the top rear side of the base 100, the grinding component is located above the dust collection component, and the inner side of the rotating table 400 is close to the dust collection component and higher than the front side of the dust collection component.

[0070] When grinding the sealing surface of the butterfly plate 900, the butterfly plate 900 is first placed on the placement component of one of the workpiece positioning mechanisms. The placement component provides placement and support for the butterfly plate 900, which facilitates subsequent positioning operations.

[0071] The drive assembly is activated, and the positions of the two first limiting components are adjusted so that they contact the two ends of the mounting cylinder 901 at the bottom of the butterfly plate 900, thus limiting the two ends of the mounting cylinder 901. The second limiting component is then inserted into the interior of the mounting cylinder 901. The position of the second limiting component is then adjusted so that it contacts the inner wall of the mounting cylinder 901, thus limiting the mounting cylinder 901 in the circumferential direction. In this way, the positioning operation of the butterfly plate 900 is achieved through the placement assembly, the first limiting component, and the second limiting component, making the position of the butterfly plate 900 more stable and accurate, which is convenient for subsequent grinding and processing.

[0072] After the positioning operation is completed, the bidirectional rotating assembly causes the rotating table 400 and the butterfly plate 900 on it to rotate and tilt towards the dust collection assembly, and makes the butterfly plate 900 parallel to the grinding disc 303 and the pressure plate 204. Then, the rotating telescopic assembly moves the pressure plate 204 and presses it tightly on the top of the butterfly plate 900 to further press and position the butterfly plate 900.

[0073] Then, the position of the polishing assembly relative to the center of the butterfly plate 900 is adjusted so that the position of the polishing disc 303 corresponds to the radius position of the first step surface 903 on the butterfly plate 900, and the polishing disc 303 contacts the corresponding polishing position. At the same time, the butterfly plate 900 is rotated by the bidirectional rotating assembly to perform circumferential polishing on the first step surface 903 of the butterfly plate 900. After the first step surface 903 is polished, the position of the polishing disc 303 is readjusted so that it contacts the second step surface 904 on the butterfly plate 900 to perform polishing on the second step surface 904.

[0074] After the grinding operation of the butterfly plate 900 is completed, the pressure plate 204 and the grinding disc 303 return to their original positions and disengage from the butterfly plate 900. The bidirectional rotating assembly drives the rotating table 400 and the butterfly plate 900 to rotate to a horizontal position so that the processed butterfly plate 900 can be unloaded and reloaded.

[0075] The grinding equipment is equipped with two workpiece positioning mechanisms to realize dual-station processing. When one workpiece positioning mechanism is loading and unloading the workpiece, the grinding components and pressure plate 204 and other structures are moved to the other workpiece positioning mechanism through the action of the moving component to grind the butterfly plate 900 workpiece on it, thereby reducing the processing interval time between the two workpieces and improving processing efficiency.

[0076] During loading and unloading, the rotating table 400 and butterfly plate 900 are in a horizontal position, which facilitates the adjustment and positioning of the butterfly plate 900. During grinding, the butterfly plate 900, the workpiece, and the grinding disc 303 are all in an inclined position, and the grinding position is at the lowest point of the butterfly plate 900. This allows the waste generated during grinding to fall directly into the integrated assembly, preventing the waste from falling into other parts of the equipment and workpiece, which would affect subsequent grinding and processing. The grinding position of the butterfly plate 900 is cleaned by blowing through the blow pipe 308 in the grinding assembly, improving the cleaning effect of the workpiece.

[0077] Example 2: The structure of this example is basically the same as that of Example 1, except that, as shown in Example 2... Figure 7 As shown, the first limiting component includes two vertical fixed posts 401 symmetrically fixed to the top of the rotating platform 400. A drive component is connected between the two fixed posts 401, and an adjusting seat 500 is provided on the inner side of each fixed post 401, which is slidably connected to the top of the rotating platform 400. The adjusting seat 500 is correspondingly connected to the drive component, as shown below. Figure 11As shown, the adjusting seat 500 is provided with a transmission cavity, in which a second transmission gear 503 is rotatably connected. The bottom of the second transmission gear 503 is meshed with a third transmission gear 504. A transmission cylinder 501 is rotatably connected at the center of the third transmission gear 504, and the transmission cylinder 501 is correspondingly connected to the drive assembly. The second limiting assembly is located at the top center of the adjusting seat 500 and is correspondingly connected to the second transmission gear 503.

[0078] When adjusting the position of the adjusting seat 500, the driving component moves both adjusting seats 500 inwards simultaneously. This allows the adjusting seats 500 to limit the two ends of the mounting cylinder 901 at the bottom of the butterfly plate 900, and drives the second limiting component to move into the interior of the mounting cylinder 901. This allows the driving component to adjust the second limiting component and position the mounting cylinder 901 in the circumferential direction. Thus, through the cooperation of the first and second limiting components, the butterfly plate 900 can be quickly positioned.

[0079] like Figure 10 As shown, the second limiting assembly includes a threaded cylinder 704 rotatably connected to the center of the top of the adjusting seat 500. A first transmission gear 705 is fixed on the threaded cylinder 704, and the first transmission gear 705 meshes with the top of the second transmission gear 503. An adjusting screw 703 is threadedly connected to the threaded cylinder 704, and one end of the adjusting screw 703 extends out of the threaded cylinder 704 and is fixed with a movable ring platform 702. Figure 12 As shown, a fixed ring platform 701 is provided on the side wall of the adjusting seat 500 corresponding to the outer position of the threaded cylinder 704. Multiple arc-shaped positioning plates 700 are evenly arranged circumferentially between the fixed ring platform 701 and the movable ring platform 702. Rubber pads are provided on the outer surface of the positioning plates 700. Two symmetrical and inclined push-pull rods 706 are rotatably connected to the inner surface of the positioning plates 700. Figure 14 As shown, the fixed ring platform 701 and the movable ring platform 702 are provided with multiple grooves evenly along the circumferential direction, and the other end of the push-pull rod 706 is rotatably connected to the corresponding groove.

[0080] When the adjusting seat 500 moves to both ends of the mounting cylinder 901, multiple positioning plates 700 extend into the interior of the mounting cylinder 901. The drive assembly causes the transmission cylinder 501 to rotate, and through the transmission of the third transmission gear 504, the second transmission gear 503, and the first transmission gear 705, the threaded cylinder 704 rotates. The adjusting screw 703 is restricted by the moving ring platform 702, the fixed ring platform 701, the push-pull rod 706, and other structures, and can only move along the horizontal axis. This drives the moving ring platform 702 and the ends of multiple push-pull rods 706 on one side to move closer to the adjusting seat 500. Then, through the movement of multiple push-pull rods 706 on both sides, the positioning plates 700 are pushed outward, so that multiple positioning plates 700 simultaneously contact the inner wall of the mounting cylinder 901, thereby realizing the positioning operation of the mounting cylinder 901 and the butterfly plate 900.

[0081] like Figure 15 As shown, the drive assembly includes two wheel axle mounting plates 807 symmetrically fixed in the middle of the top of the rotating platform 400. The lower and upper parts of the two wheel axle mounting plates 807 are respectively rotatably connected to a first drive shaft 800 and a second drive shaft 801. The two ends of the first drive shaft 800 and the second drive shaft 801 are rotatably connected to the fixed columns 401 on both sides.

[0082] The first drive shaft 800 has oppositely threaded sections on both sides, which are respectively threaded to the lower part of the adjusting seats 500 on both sides. The second drive shaft 801 has multiple transmission grooves 802 evenly distributed along the circumferential direction on both sides, and the second drive shaft 801 passes through the transmission cylinders 501 on both sides. Figure 13 As shown, multiple transmission blocks 502 are fixed on the inner side wall of the transmission cylinder 501, and the transmission blocks 502 are slidably connected in the transmission groove 802.

[0083] A first gear 803 is fixed on the first drive shaft 800, and a second gear 804 meshes with the first gear 803. A third gear 805 is fixed on the second drive shaft 801, and a fourth gear 806 meshes with the third gear 805. The second gear 804 and the fourth gear 806 are rotatably connected to the wheel and axle mounting plate 807 and are respectively connected to a motor.

[0084] During the positioning operation of the butterfly plate 900, the first drive shaft 800 is rotated by the drive of the motor and the transmission of the first gear 803 and the second gear 804. This causes the two adjusting seats 500 to move towards the center simultaneously through the thread action, thereby limiting the two ends of the mounting cylinder 901 and allowing the multiple positioning plates 700 of the second limiting assembly to extend into the interior of the mounting cylinder 901. The second drive shaft 801 is rotated by the drive of the motor and the transmission of the third gear 805 and the fourth gear 806. During the movement of the adjusting seats 500, the transmission block 502 on the transmission cylinder 501 remains connected to the transmission groove 802 on the second drive shaft 801. Thus, when the second drive shaft 801 rotates, the transmission cylinder 501 rotates accordingly, thereby adjusting the position of the multiple positioning plates 700 through transmission to achieve circumferential limiting of the mounting cylinder 901.

[0085] Example 3: The structure of this example is basically the same as that of Example 2, except that, as shown in Example 3... Figure 7 As shown, the placement assembly includes connecting rings 604 fixed to the upper part of the fixed column 401. Horizontal fixed arc plates 602 are fixed on both sides of the two connecting rings 604 respectively. A placement arc plate 600 is connected to the upper part of the fixed arc plate 602 by a plurality of springs evenly arranged. A plurality of vertical guide shafts 601 are evenly fixed to the bottom of the placement arc plate 600, and the bottom end of the guide shaft 601 passes through the fixed arc plate 602 and is slidably connected to the fixed arc plate 602.

[0086] When the butterfly plate 900 is being loaded, it is placed on top of the two placement arc plates 600. Under the action of gravity, the compression springs of the placement arc plates 600 are moved downward, and the mounting cylinder 901 of the butterfly plate 900 is moved downward and close to the second limiting component, so that the butterfly plate 900 can be positioned by the first limiting component and the second limiting component. The shape of the placement arc plate 600 can ensure effective contact and support on both sides of the bottom of the butterfly plate 900.

[0087] like Figure 7 , Figure 8 As shown, the bidirectional rotating assembly includes two symmetrically and parallelly arranged rotating frames 403. The inner ends of the rotating frames 403 are rotatably connected to the top surface of the base 100, and a connecting plate 404 is fixed between their rear ends. A gate-shaped mounting frame 402 is fixed to the top of the two rotating frames 403. A central column 408 is rotatably connected to the middle of the mounting frame 402. The rotating platform 400 is fixed to the top of the central column 408. Multiple teeth are evenly fixed along the circumferential direction on the lower side wall of the central column 408, and a drive gear 409 is meshed with the teeth. The drive gear 409 is connected to a motor, and the motor is fixed to the mounting frame 402.

[0088] The mounting bracket 402 has symmetrically arranged and rotatably connected inclined adjusting rods 405 at both ends. The outer end of the adjusting rod 405 is rotatably connected to an adjusting block 406. An adjusting hydraulic rod 407 is connected between the inner end of the adjusting block 406 and the top of the base 100. The bottom of the connecting plate 404 is provided with a downward-facing groove corresponding to the positions of the two adjusting hydraulic rods 407.

[0089] After the positioning operation of the butterfly plate 900 is completed, the adjusting block 406 is moved inward along the top of the base 100 by adjusting the hydraulic rod 407. This causes the top of the adjusting rod 405 to push the mounting bracket 402 and the rotating bracket 403 to rotate. In turn, the rotating bracket 403 and the mounting bracket 402, etc., drive the rotating table 400 and the butterfly plate 900 workpiece on it to tilt towards the dust collection assembly. Figure 9 As shown, the butterfly plate 900 is kept parallel to the pressure plate 204 and the polishing disc 303;

[0090] After the pressure plate 204 contacts the top of the butterfly plate 900 and achieves positioning, the central column 408 drives the rotating table 400 to rotate through the motor and drive gear 409. Then, the first limiting component and the second limiting component drive the butterfly plate 900 to rotate in the circumferential direction so as to cooperate with the grinding disc 303 to grind the first step surface 903 and the second step surface 904 on the butterfly plate 900.

[0091] Example 4: The structure of this example is basically the same as that of Example 1, except that, as shown in Example 4... Figure 4 , Figure 5 As shown, the rotary telescopic assembly includes a rotary circular seat 201 rotatably connected to the movable seat 200. A plurality of spring rods 202 are evenly arranged along the circumferential direction on the rotary circular seat 201. The bottom ends of the plurality of spring rods 202 pass through the rotary circular seat 201 and are fixedly connected to the top surface of the pressure plate 204. A spring plate 203 is fixed to the top of the spring rods 202. The spring plate 203 is connected to the top surface of the rotary circular seat 201 through a spring. A first electromagnet 205 and a second electromagnet 206 are fixed to the bottom of the rotary circular seat 201 and the top surface of the pressure plate 204, respectively. The first electromagnet 205 and the second electromagnet 206 are electrically connected to a power source and a switch.

[0092] When the rotating table 400 positions the butterfly plate 900 and rotates parallel to the pressure plate 204, the first electromagnet 205 and the second electromagnet 206 are energized and repel each other. This causes the pressure plate 204 to move towards the butterfly plate 900 under the guidance of the spring rod 202 and press tightly onto the butterfly plate 900, thereby pressing and positioning the top of the butterfly plate 900, improving the positioning effect and the positional stability of the workpiece. During the rotation and grinding process of the butterfly plate 900, the pressure plate 204 and the rotating round seat 201 and other structures rotate accordingly without hindering the rotation of the butterfly plate 900, thus avoiding affecting the rotation and grinding of the butterfly plate 900.

[0093] like Figure 5 , Figure 6 As shown, the grinding assembly includes two parallel first guide frames 301 symmetrically fixed to the rear side of the movable base 200. The first guide frames 301 are parallel to the movable base 200, and a sliding seat 300 is slidably connected to the first guide frame 301. A through groove is provided in the sliding seat 300 corresponding to the position of the first guide frame 301. A traveling gear 304 is rotatably connected inside the through groove. The traveling gear 304 is connected to a motor. A plurality of teeth are evenly provided at the bottom of the first guide frame 301, and the teeth mesh with the traveling gear 304.

[0094] A mounting plate 305 is fixed between the lower parts of the two sliding seats 300. The bottom of the mounting plate 305 is connected to a lifting plate 307 via two lifting hydraulic rods 306. The grinding disc 303 is rotatably connected to the bottom middle of the lifting plate 307, and a motor is connected to the top.

[0095] The two ends of the blow pipe 308 are fixedly connected to the front sides of the two sliding seats 300 through brackets, and multiple nozzles are evenly provided at the bottom of the blow pipe 308. An air pump 309 is provided on one of the sliding seats 300, and one end of the blow pipe 308 is connected to the air pump 309 through a pipe.

[0096] When adjusting the position of the pressure plate 204 and the grinding disc 303, the moving component drives the moving seat 200 and the first guide frame 301 to move, thereby adjusting the position of the grinding disc 303 and the pressure plate 204.

[0097] When the grinding assembly is working, the motor drives the walking gear 304 to rotate, which in turn drives the sliding seat 300 and its grinding disc 303 and other structures to move along the first guide frame 301, adjusting the position of the grinding disc 303 relative to the center of the butterfly plate 900 so that it corresponds to the radius position of the first step surface 903 or the second step surface 904 on the butterfly plate 900.

[0098] Then, the lifting hydraulic rod 306 is activated, causing the lifting horizontal plate 307 to move the grinding disc 303 closer to the butterfly plate 900 and into contact with the grinding position, so that the grinding disc 303 can be rotated by the motor to grind the butterfly plate 900.

[0099] While grinding, the grinding area of ​​the butterfly plate 900 is cleaned by air pump 309 and blow pipe 308, so that the waste dust generated by grinding falls from the butterfly plate 900 and is collected in the dust collection component to ensure the cleaning effect of the butterfly plate 900.

[0100] like Figure 3As shown, the moving assembly includes two moving screws 102 arranged in parallel and threadedly connected to the moving base 200. The two ends of the moving screws 102 extend out of the moving base 200 and are rotatably connected to the top of the corresponding fixed frame 101. A motor is connected to one end of the moving screws 102.

[0101] When adjusting the position of the grinding disc 303 and the pressure plate 204, the moving screw 102 is driven to rotate by the motor, and then the moving seat 200 drives the first guide rod 103 and its structure to move through the thread action, so that the grinding disc 303 moves back and forth between the two workstations to perform grinding work in turn.

[0102] like Figure 2 , Figure 3 As shown, the dust collection assembly includes a waste trough 104 fixed to the rear side of the top of the base 100. The top of the front side of the waste trough 104 is lower than the top of the rear side. An arc-shaped collection filter 105 is fixed in the waste trough 104, and the two ends of the collection filter 105 are higher than the middle. A suction fan 106 is provided on the rear side of the waste trough 104. Suction pipes 107 are provided on both sides of the suction fan 106, and multiple suction ports are evenly provided on the suction pipes 107. The front end of the suction port extends into the lower part of the inner cavity of the waste trough 104.

[0103] During the grinding process, the waste generated falls into the waste tank 104. Through the cooperation of the blow pipe 308 and the suction pipe 107, fine waste and dust are carried into the waste tank 104 by the airflow. The waste and dust blown down are collected by the collection filter 105, making the collection of waste and dust faster and more convenient, and preventing it from falling onto other structures of the grinding equipment. Furthermore, by setting the collection filter 105 to be arc-shaped, the collected dust can gradually concentrate in the middle of the collection filter 105, which is convenient for subsequent cleaning and removal operations.

[0104] Example 5: The structure of this example is basically the same as that of Example 4, except that, as shown in Example 5... Figure 5 As shown, a second guide frame 302 is vertically fixed to the bottom rear end of the first guide frame 301. A guide rod 103 is fixed between the middle rear sides of the two fixed frames 101. The bottom ends of the two second guide frames 302 are slidably connected to the guide rod 103. During the movement of the first guide frame 301 with the moving seat 200, the second guide frame 302 and the guide rod 103 provide support and guidance for the rear end of the first guide frame 301, further improving the positional stability of the grinding disc 303 and other structures.

[0105] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0106] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automated grinding device for valve sealing mating surfaces, comprising a base (100) and fixed brackets (101) fixed to both sides of the top of the base (100), wherein a workpiece positioning mechanism is provided on the top surface of the base (100) corresponding to the position between the two fixed brackets (101), and a grinding assembly is provided above the workpiece positioning mechanism, characterized in that: Two workpiece positioning mechanisms are symmetrically arranged, and each workpiece positioning mechanism includes a bidirectional rotating component connected to the base (100) and a circular rotating platform (400) connected to the top of the bidirectional rotating component. The bidirectional rotation assembly includes two symmetrically and parallelly arranged rotating frames (403). The top of the two rotating frames (403) is fixed together with a gate-shaped mounting frame (402). The two ends of the mounting frame (402) are symmetrically arranged and rotatably connected with inclined adjusting rods (405). The outer end of the adjusting rod (405) is rotatably connected with an adjusting block (406). The inner end of the adjusting block (406) and the top of the base (100) are connected with an adjusting hydraulic rod (407). The top of the rotating platform (400) is symmetrically provided with first limiting components on both sides, and second limiting components are respectively provided on the top of the opposite sides of the two first limiting components. The top of the rotating platform (400) is provided with a driving component in the middle, and placement components are symmetrically provided on both sides of the driving component. The first limiting components and the second limiting components are both connected to the driving component. The first limiting component includes two vertical fixed columns (401) symmetrically fixed to the top of the rotating platform (400), a driving component connected between the two fixed columns (401), and an adjusting seat (500) slidably connected to the top of the rotating platform (400) on the inner side of the fixed column (401), the adjusting seat (500) being correspondingly connected to the driving component; The second limiting component includes a threaded cylinder (704) rotatably connected to the middle of the top of the adjusting seat (500). An adjusting screw (703) is threadedly connected to the threaded cylinder (704). One end of the adjusting screw (703) extends out of the threaded cylinder (704) and is fixed with a movable ring platform (702). A fixed ring platform (701) is provided on the side wall of the adjusting seat (500) at the outer position of the threaded cylinder (704). Multiple arc-shaped positioning plates (700) are evenly provided in the circumferential direction between the fixed ring platform (701) and the movable ring platform (702). Two symmetrical and inclined push-pull rods (706) are rotatably connected to the inner side of the positioning plate (700). Multiple grooves are evenly provided in the circumferential direction on the fixed ring platform (701) and the movable ring platform (702), and the other end of the push-pull rod (706) is rotatably connected to the corresponding groove. The top of the fixed frame (101) is provided with a movable component, and an inclined movable seat (200) is connected to the movable component. The bottom of the movable seat (200) is provided with a circular pressure plate (204) connected by a rotating telescopic component. The pressure plate (204) is parallel to the movable seat (200). The grinding component is connected to the movable component and is located on the rear side of the pressure plate (204). The grinding component includes a grinding disc (303) and a blow pipe (308). The grinding disc (303) is parallel to the pressure plate (204). The base (100) has a dust collection component on its top rear side, the grinding component is located above the dust collection component, and the inner side of the rotating table (400) is close to the dust collection component and higher than the front side of the dust collection component.

2. The automated grinding equipment for valve sealing mating surfaces according to claim 1, characterized in that: The adjusting seat (500) is provided with a transmission cavity, in which a second transmission gear (503) is rotatably connected. The bottom of the second transmission gear (503) is meshed with a third transmission gear (504). A transmission cylinder (501) is rotatably connected at the center of the third transmission gear (504), and the transmission cylinder (501) is correspondingly connected to the drive assembly. The second limiting assembly is located at the top center of the adjusting seat (500) and is correspondingly connected to the second transmission gear (503).

3. The automated grinding equipment for valve sealing mating surfaces according to claim 2, characterized in that: The threaded cylinder (704) is fixed with a first transmission gear (705), which meshes with the top of the second transmission gear (503). A rubber pad is provided on the outer side of the positioning plate (700).

4. The automated grinding equipment for valve sealing mating surfaces according to claim 3, characterized in that: The drive assembly includes two axle mounting plates (807) symmetrically fixed in the middle of the top of the rotating platform (400). The lower and upper parts of the two axle mounting plates (807) are respectively rotatably connected to a first drive shaft (800) and a second drive shaft (801). The two ends of the first drive shaft (800) and the second drive shaft (801) are rotatably connected to the fixed columns (401) on both sides. The first drive shaft (800) has threads with opposite directions on both sides and is threaded to the lower part of the adjusting seats (500) on both sides respectively. The second drive shaft (801) has multiple transmission grooves (802) evenly arranged along the circumferential direction on both sides. The second drive shaft (801) passes through the transmission cylinders (501) on both sides. Multiple transmission blocks (502) are fixed on the inner sidewall of the transmission cylinder (501) respectively. The transmission blocks (502) are slidably connected in the transmission grooves (802). A first gear (803) is fixed on the first drive shaft (800), and a second gear (804) meshes with the first gear (803). A third gear (805) is fixed on the second drive shaft (801), and a fourth gear (806) meshes with the third gear (805). The second gear (804) and the fourth gear (806) are rotatably connected to the wheel and axle mounting plate (807) and are respectively connected to a motor.

5. The automated grinding equipment for valve sealing mating surfaces according to claim 2, characterized in that: The placement assembly includes connecting rings (604) fixed to the upper part of the fixed column (401). Horizontal fixed arc plates (602) are fixed on both sides of the two connecting rings (604). A placement arc plate (600) is connected above the fixed arc plate (602) by a plurality of springs evenly arranged. A plurality of vertical guide shafts (601) are evenly fixed at the bottom of the placement arc plate (600), and the bottom end of the guide shaft (601) passes through the fixed arc plate (602) and is slidably connected to the fixed arc plate (602).

6. The automated grinding equipment for valve sealing mating surfaces according to claim 1, characterized in that: The rotating telescopic assembly includes a rotating circular seat (201) rotatably connected to a movable seat (200). A plurality of spring rods (202) are evenly arranged along the circumferential direction on the rotating circular seat (201). The bottom ends of the plurality of spring rods (202) pass through the rotating circular seat (201) and are fixedly connected to the top surface of the pressure plate (204). A spring plate (203) is fixed to the top of the spring rods (202). The spring plate (203) is connected to the top surface of the rotating circular seat (201) through a spring. A first electromagnet (205) and a second electromagnet (206) are fixed to the bottom of the rotating circular seat (201) and the top surface of the pressure plate (204) respectively. The first electromagnet (205) and the second electromagnet (206) are electrically connected to a power source and a switch.

7. The automated grinding equipment for valve sealing mating surfaces according to claim 1, characterized in that: The polishing assembly includes two parallel first guide frames (301) symmetrically fixed to the rear side of the movable base (200). The first guide frames (301) are parallel to the movable base (200), and a sliding seat (300) is slidably connected to the first guide frame (301). A through groove is provided in the sliding seat (300) corresponding to the position of the first guide frame (301). A traveling gear (304) is rotatably connected inside the through groove. The traveling gear (304) is connected to a motor. The bottom of the first guide frame (301) is evenly provided with multiple teeth, which mesh with the traveling gear (304) through the teeth. A mounting plate (305) is fixed between the lower parts of the two sliding seats (300). The bottom of the mounting plate (305) is connected to a lifting plate (307) via two lifting hydraulic rods (306). The grinding disc (303) is rotatably connected to the middle of the bottom of the lifting plate (307), and a motor is connected to the top. The two ends of the blow pipe (308) are fixedly connected to the front side of the two sliding seats (300) through the bracket, and the bottom of the blow pipe (308) is evenly provided with multiple nozzles. One of the sliding seats (300) is provided with an air pump (309), and one end of the blow pipe (308) is connected to the air pump (309) through a pipe.

8. The automated grinding equipment for valve sealing mating surfaces according to claim 1, characterized in that: The inner end of the rotating frame (403) is rotatably connected to the top surface of the base (100), and a connecting plate (404) is fixed between the rear ends. The middle of the mounting frame (402) is rotatably connected to the central column (408). The rotating table (400) is fixed to the top of the central column (408). Multiple teeth are evenly fixed along the circumferential direction on the lower part of the side wall of the central column (408), and a drive gear (409) is meshed through the teeth. The drive gear (409) is connected to a motor, and the motor is fixed to the mounting frame (402). The bottom of the connecting plate (404) is provided with downward-facing grooves corresponding to the positions of the two adjusting hydraulic rods (407).

9. The automated grinding equipment for valve sealing mating surfaces according to claim 1, characterized in that: The moving component includes two moving screws (102) arranged in parallel and threadedly connected to the moving base (200). The two ends of the moving screws (102) extend out of the moving base (200) and are rotatably connected to the top of the corresponding fixed frame (101). A motor is connected to one end of the moving screws (102).

10. The automated grinding equipment for valve sealing mating surfaces according to claim 1, characterized in that: The dust collection assembly includes a waste trough (104) fixed to the rear side of the top of the base (100). The top of the front side of the waste trough (104) is lower than the top of the rear side. An arc-shaped collection filter (105) is fixed in the waste trough (104), and the two ends of the collection filter (105) are higher than the middle. A suction fan (106) is provided on the rear side of the waste trough (104). Suction pipes (107) are provided on both sides of the suction fan (106), and multiple suction ports are evenly provided on the suction pipes (107). The front end of the suction port extends into the lower part of the inner cavity of the waste trough (104).

Images