Automatic grinding equipment for sealing butt joint surfaces of valves

Abstract

The invention discloses automatic polishing equipment for a valve sealing butt joint face in the technical field of valve machining, and the automatic polishing equipment comprises a base, a moving assembly and two workpiece positioning mechanisms. Each workpiece positioning mechanism comprises a bidirectional rotating assembly, a rotating table, a placing assembly, a driving assembly, a first limiting assembly and a second limiting assembly, the two workpiece positioning mechanisms are arranged, double-station machining is achieved, and feeding, discharging and grinding of different stations are conducted at the same time; during feeding and discharging, the butterfly plate is in a horizontal state, positioning operation on the butterfly plate is facilitated, and during grinding, the butterfly plate workpiece and the grinding disc are in an inclined state, so that waste and the like generated by grinding can directly fall down; the placement and supporting effects are provided through the placement assembly, the mounting cylinder of the butterfly plate is positioned in different directions through the first limiting assembly and the second limiting assembly, the top of the butterfly plate is positioned through the pressing plate, and the positioning effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of valve processing, in particular to an automatic grinding device for valve sealing butt surfaces. Background Art

[0002] Valves are control components in fluid delivery systems, performing functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, flow diversion, or overflow and pressure relief. Valves come in a wide variety of types and specifications. Butterfly valves are used for on / off control of low-pressure pipeline media. The closing element of a butterfly valve, the disc or disk, is a disc-shaped element that rotates around the valve shaft to open and close.

[0003] The sealing interface of the butterfly valve is the side contact surface of the butterfly plate. Therefore, it is usually necessary to set a two-level step surface on the circumferential side of the butterfly plate, and set a cylinder seat and a mounting cylinder on the butterfly plate, and install the shaft and other structures through the mounting cylinder, such as 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 clamping plate. The sealing ring is fixed to the side of the butterfly plate through the annular clamping plate and the butterfly plate body to play a sealing role during the working process.

[0004] Therefore, during the processing of the butterfly plate, after the step surface and the mounting hole are processed, the step surface on the side of the butterfly plate needs to be further polished to improve the surface quality and the position accuracy of the sealing ring and the annular splint during installation.

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

[0006] The above-mentioned device can realize the grinding of the sealing surface of the butterfly plate, but the butterfly plate can only rotate back and forth within a certain angle. Therefore, only the side part of the butterfly plate can be ground, and the sealing surface of the butterfly plate with an annular structure cannot be ground. Moreover, the butterfly plate is in a horizontal state during grinding, and the waste dust generated is easy to splash around and fall on the grinding structure or the butterfly plate body, affecting subsequent processing and treatment.

[0007] Based on this, the present invention designs an automatic polishing device for valve sealing interface to solve the above problems. Summary of the Invention

[0008] The object of the present invention is to provide an automated polishing device for valve sealing surfaces to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions: An automated grinding device for valve sealing butt joint surfaces comprises a base and fixing frames fixed to both sides of the top of the base, wherein a workpiece positioning mechanism is provided on the top surface of the base at a position corresponding to the position between the two fixing frames, and a grinding assembly is provided above the workpiece positioning mechanism; Two workpiece positioning mechanisms are symmetrically provided, 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; First limiting assemblies are symmetrically provided on both sides of the top of the rotating table, and second limiting assemblies are respectively provided on the tops of the opposite sides of the two first limiting assemblies. A driving assembly is provided in the middle of the top of the rotating table, and placement assemblies are symmetrically provided on both sides of the driving assembly, and the first limiting assemblies and the second limiting assemblies are correspondingly connected to the driving assembly. A moving assembly is provided on the top of the fixed frame, and an inclined moving seat is connected to the moving assembly. A circular pressing plate is provided at the bottom of the moving seat and is connected to the moving seat via a rotating telescopic assembly. The pressing plate is parallel to the moving seat. The grinding assembly is connected to the moving assembly and is located at the rear side of the pressing plate. The grinding assembly includes a grinding disc and a blowing pipe, and the grinding disc is parallel to the pressing plate. A dust collecting assembly is provided on the top rear side of the base, the polishing assembly is located above the dust collecting assembly, and the inner side of the rotating table is close to the dust collecting assembly and higher than the front side of the dust collecting assembly.

[0010] Preferably, the first limiting assembly includes two vertical fixed columns symmetrically fixed to the top of the rotating table, the driving assembly is connected between the two fixed columns, and an adjustment seat slidably connected to the top of the rotating table is provided on the inner side of the fixed column, the adjustment seat is correspondingly connected to the driving assembly, a transmission cavity is provided in the adjustment seat, a second transmission gear is rotatably connected in the transmission cavity, a third transmission gear is engaged with 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 assembly, and the second limiting assembly is located in the middle of the top of the adjustment seat and is correspondingly connected to the second transmission gear.

[0011] Preferably, the second limit assembly includes a threaded cylinder rotatably connected to the middle of the top of the adjusting seat, the threaded cylinder is fixed with a first transmission gear, the first transmission gear is meshed with the top of the second transmission gear, an adjusting screw is threadedly connected in 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, a plurality of arc-shaped positioning plates are evenly provided between the fixed ring platform and the movable ring platform along the circumferential direction, a rubber pad is provided on the outer surface of the positioning plate, and two symmetrical and inclined push-pull rods are rotatably connected to the inner side surface of the positioning plate, a plurality of grooves are evenly provided on the fixed ring platform and the movable ring platform respectively along the circumferential direction, and the other end of the push-pull rod is rotatably connected to the corresponding groove.

[0012] 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 rotatably connected to the first drive shaft and the second drive shaft respectively, and the ends of the first drive shaft and the second drive shaft are rotatably connected to the fixed columns on both sides; The two side segments of the first drive shaft are provided with threads with opposite rotation directions, and are respectively threadedly connected to the lower part of the adjustment seat on both sides. The two side segments of the second drive shaft are respectively provided with a plurality of transmission grooves evenly distributed along the circumferential direction, and the second drive shaft passes through the transmission cylinders on both sides. A plurality of transmission blocks are correspondingly fixed on the inner side walls of the transmission cylinders, and the transmission blocks are slidably connected to the transmission grooves; A first gear is fixed on the first drive shaft, and a second gear is meshed on the first gear. A third gear is fixed on the second drive shaft, and a fourth gear is meshed on the third gear. The second gear and the fourth gear are both rotatably connected to the axle mounting plate and are respectively connected to motors.

[0013] Preferably, the placement assembly includes a connecting hoop fixed to the upper part of the fixed column, and horizontal fixed arc plates are fixed on both sides of the two connecting hoops respectively. The top of the fixed arc plate is connected to the placement arc plate through a plurality of evenly arranged springs, and the bottom of the placement arc plate is evenly fixed with a plurality of vertical guide shafts, and the bottom end of the guide shaft passes through the fixed arc plate and is slidably connected to the fixed arc plate.

[0014] Preferably, the rotating telescopic assembly includes a rotating round seat rotatably connected to the movable seat, and a plurality of spring rods are evenly arranged on the rotating round seat along the circumferential direction. The bottom ends of the plurality of spring rods pass through the rotating round seat and are fixedly connected to the top surface of the pressure plate, and a spring plate is fixed to the top end of the spring rod, and the spring plate is connected to the top surface of the rotating round seat through a spring. The bottom of the rotating round seat and the top surface of the pressure plate are respectively fixed with a first electromagnet and a second electromagnet, and the first electromagnet and the second electromagnet are electrically connected to a power supply and a switch.

[0015] 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 the first guide frames are slidably connected to the sliding base, a through slot is provided in the sliding base at a position corresponding to the first guide frame, a traveling gear is rotatably connected inside the through slot, the traveling gear is connected to the motor, and a plurality of teeth are evenly provided on the bottom of the first guide frame, and meshed with the traveling gear through the teeth; A mounting horizontal plate is fixed between the lower parts of the two sliding seats. The bottom of the mounting horizontal plate is connected to the lifting horizontal plate through two lifting hydraulic rods. The grinding disc is rotatably connected to the middle of the bottom of the lifting horizontal plate, and the top is connected to a motor. The two ends of the blow pipe are fixedly connected to the front sides of the two sliding seats through a bracket, and multiple nozzles are evenly arranged on the bottom of the blow pipe. An air pump is provided on one of the sliding seats, and one end of the blow pipe is connected to the air pump through a pipe.

[0016] Preferably, a second guide frame is vertically fixed to the bottom of the rear end of the first guide frame, a guide rod is fixed between the middle parts of the rear sides of the two fixing frames, and the bottom ends of the two second guide frames are slidably connected to the guide rod.

[0017] Preferably, the bidirectional rotation assembly includes two rotating frames arranged symmetrically and in parallel, the inner ends of the rotating frames are rotatably connected to the top surface of the base, and a connecting plate is commonly fixed between the rear ends, a door-shaped mounting frame is commonly fixed on the top of the two rotating frames, the middle of the mounting frame is rotatably connected to the center column, the rotating platform is fixed to the top of the center column, a plurality of teeth are evenly fixed on the lower part of the side wall of the center column along the circumferential direction, and a driving gear is meshed with the teeth, the driving gear is connected to the motor, and the motor is fixed to the mounting frame; The two ends of the mounting frame are symmetrically arranged and rotatably connected with inclined adjustment rods, the outer ends of the adjustment rods are rotatably connected with adjustment blocks, an adjustment hydraulic rod is connected between the inner end of the adjustment block and the top of the base, and the bottom of the connecting plate is provided with grooves with openings facing downwards at the positions corresponding to the two adjustment hydraulic rods.

[0018] Preferably, the moving assembly includes two moving screws arranged in parallel and threadedly connected to the moving seat, both ends of the moving screws extend out of the moving seat and are respectively rotatably connected to the top of the fixed frame on the corresponding side, and one end of the moving screw is connected to a motor.

[0019] Preferably, the dust collecting 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 aggregate filter is fixed in the waste trough, and the two ends of the aggregate filter are higher than the middle part, 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, and the front end of the suction port extends into the lower part of the inner cavity of the waste trough.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes double-station processing by setting two workpiece positioning mechanisms in the equipment. When loading is carried out at one station, grinding is carried out at the other station at the same time, thereby shortening the interval time between the two workpiece processing and improving the processing efficiency. 2. When loading and unloading, the rotary table and the butterfly plate are in a horizontal state, which is convenient for adjusting and positioning the position of the butterfly plate. When grinding, the butterfly plate workpiece and the grinding disc are in an inclined state, so that the waste generated by grinding can fall directly into the integrated component, avoiding the waste from falling into other positions of the equipment and workpiece. 3. While the grinding component is being used for grinding, the present invention also realizes the cleaning of the grinding position of the butterfly plate through the blowing pipe, thereby improving the cleaning effect of the workpiece; 4. The present invention provides placement and support functions through a placement component, and positions the mounting tube of the butterfly plate in different directions through a first limit component and a second limit component, and positions the top of the butterfly plate through a rotating telescopic component and a pressure plate, thereby further improving the positioning effect and the position stability of the workpiece during grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 A schematic diagram of the positions of the rotating table and the waste trough of the present invention; Figure 3 It is a structural schematic diagram of the base of the present invention; Figure 4 It is a structural schematic diagram of the mobile seat of the present invention; Figure 5 It is a structural schematic diagram of the pressing plate of the present invention; Figure 6 It is a structural schematic diagram of the grinding disc of the present invention; Figure 7 Schematic diagram of the top structure of the turntable of the present invention; Figure 8 Schematic diagram of the bottom structure of the rotating platform of the present invention; Figure 9 Schematic diagram of the tilted state of the rotating platform of the present invention; Figure 10 This is a schematic structural diagram of the positioning plate of the present invention; Figure 11 This is a schematic diagram of the internal structure of the adjustment seat of the present invention; Figure 12 It is a structural schematic diagram of the threaded barrel of the present invention; Figure 13 for Figure 11 Schematic diagram of the structure at A in the middle; Figure 14 for Figure 12 Schematic diagram of the structure at B in the middle; Figure 15 This is a schematic structural diagram of the first drive shaft and the second drive shaft of the present invention; Figure 16 Schematic diagram of the top structure of the butterfly plate of the present invention; Figure 17 It is a schematic diagram of the bottom structure of the butterfly plate of the present invention.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows: 100-base, 101-fixed frame, 102-moving screw, 103-guide rod, 104-waste chute, 105-aggregate filter, 106-suction fan, 107-suction pipe; 200-moving seat, 201-rotating round seat, 202-spring rod, 203-spring plate, 204-pressing plate, 205-first electromagnet, 206-second electromagnet; 300-sliding seat, 301-first guide frame, 302-second guide frame, 303-grinding disc, 304-travel gear, 305-mounting horizontal plate, 306-lifting hydraulic rod, 307-lifting horizontal plate, 308-blowing pipe, 309-air pump; 400 - rotating platform, 401 - fixed column, 402 - mounting frame, 403 - rotating frame, 404 - connecting plate, 405 - adjusting connecting rod, 406 - adjusting block, 407 - adjusting hydraulic rod, 408 - center column, 409 - driving gear; 500-adjusting seat, 501-transmission cylinder, 502-transmission block, 503-second transmission gear, 504-third transmission gear; 600-arc plate placement, 601-guide shaft, 602-arc plate fixing, 603-support rod, 604-connecting hoop; 700-positioning plate, 701-fixed ring platform, 702-movable ring platform, 703-adjusting screw, 704-threaded cylinder, 705-first transmission gear, 706-push-pull rod; 800 - first drive shaft, 801 - second drive shaft, 802 - transmission slot, 803 - first gear, 804 - second gear, 805 - third gear, 806 - fourth gear, 807 - axle mounting plate; 900-butterfly plate, 901-mounting cylinder, 902-cylinder seat, 903-first step surface, 904-second step surface. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Example 1, please refer to the accompanying drawings, the present invention provides a technical solution: An automatic grinding device for valve sealing surface, such as Figure 1 、 Figure 2 As shown, it includes a base 100 and fixing frames 101 fixed on both sides of the top of the base 100, and a workpiece positioning mechanism is provided on the top surface of the base 100 corresponding to the position between the two fixing frames 101, and a grinding assembly is provided above the workpiece positioning mechanism; There are two symmetrical workpiece positioning mechanisms, 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; First limiting assemblies are symmetrically provided on both sides of the top of the rotating platform 400, and second limiting assemblies are respectively provided on the tops of the opposite sides of the two first limiting assemblies. A driving assembly is provided in the middle of the top of the rotating platform 400, and placement assemblies are symmetrically provided on both sides of the driving assembly, and the first limiting assemblies and the second limiting assemblies are respectively connected to the driving assembly. A moving assembly is provided on the top of the fixed frame 101, and an inclined moving base 200 is connected to the moving assembly. A circular pressing plate 204 is provided at the bottom of the moving base 200, which is connected to the moving base 200 via a rotating telescopic assembly. The pressing plate 204 is parallel to the moving base 200. The grinding assembly is connected to the moving assembly and is located on the rear side of the pressing plate 204. The grinding assembly includes a grinding disc 303 and a blowing pipe 308, and the grinding disc 303 is parallel to the pressing plate 204. A dust collecting assembly is provided on the top rear side of the base 100 , the polishing assembly is located above the dust collecting assembly, and the inner side of the rotating platform 400 is close to the dust collecting assembly and higher than the front side of the dust collecting assembly.

[0026] When polishing the sealing surface of the butterfly plate 900, first place the butterfly plate 900 on a placement component of one of the workpiece positioning mechanisms. The placement component provides placement and support for the butterfly plate 900, facilitating subsequent positioning operations. Start the driving assembly, first adjust the positions of the two first limit assemblies through the driving assembly so that they contact the two ends of the mounting tube 901 at the bottom of the butterfly plate 900, limit the two ends of the mounting tube 901, and make the second limit assembly enter the interior of the mounting tube 901, then adjust the position of the second limit assembly through the driving assembly so that it contacts the inner wall of the mounting tube 901, and limit the mounting tube 901 in the circumferential direction, so that the positioning operation of the butterfly plate 900 is realized by placing the assembly, the first limit assembly and the second limit assembly, so that the position of the butterfly plate 900 is more stable and accurate, which is convenient for subsequent grinding processing.

[0027] After the positioning operation is completed, the rotating table 400 and the butterfly plate 900 thereon are first rotated and tilted toward the dust collecting assembly through the bidirectional rotating assembly, and the butterfly plate 900 is parallel to the grinding disc 303 and the pressing plate 204. Then, the pressing plate 204 is moved by the rotating telescopic assembly and pressed against the top of the butterfly plate 900 to further press and position the butterfly plate 900. Then adjust the position of the grinding assembly relative to the center of the butterfly plate 900 so that the position of the grinding disc 303 corresponds to the radial position of the first step surface 903 on the butterfly plate 900, and make the grinding disc 303 contact the corresponding grinding position. At the same time, the butterfly plate 900 is rotated by the bidirectional rotation assembly to grind the first step surface 903 of the butterfly plate 900 in the circumferential direction. After completing the grinding of the first step surface 903, readjust the position of the grinding disc 303 so that it contacts the second step surface 904 on the butterfly plate 900, and grind the second step surface 904.

[0028] 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 as to unload the processed butterfly plate 900 and reload it.

[0029] The grinding equipment is provided with two workpiece positioning mechanisms to realize double-station processing. When one of the workpiece positioning mechanisms is performing loading and unloading operations on the workpiece, the grinding assembly and the pressing plate 204 and other structures are moved to the other workpiece positioning mechanism through the action of the moving assembly to grind the butterfly plate 900 workpiece thereon, thereby reducing the processing interval time between the two workpieces and improving the processing efficiency. When loading and unloading, the rotating table 400 and the butterfly plate 900 and other structures are in a horizontal state, which is convenient for adjusting and positioning the position of the butterfly plate 900. When grinding, the butterfly plate 900 workpiece and the grinding disc 303 and other structures are in an inclined state, and the grinding position is at the lowest point of the butterfly plate 900, so that the waste generated by grinding can fall directly into the integrated component, avoiding the waste from falling to other positions of the equipment and workpiece, affecting subsequent grinding and processing, and the grinding position of the butterfly plate 900 is blown clean through the blow pipe 308 in the grinding component, thereby improving the workpiece cleaning effect.

[0030] Example 2: The structure of this example is basically the same as that of Example 1, except that Figure 7 As shown, the first limiting assembly includes two vertical fixed columns 401 symmetrically fixed to the top of the rotating table 400, the driving assembly is connected between the two fixed columns 401, and the inner side of the fixed columns 401 is provided with an adjustment seat 500 slidably connected to the top of the rotating table 400, and the adjustment seat 500 is correspondingly connected to the driving assembly, as shown in FIG. Figure 11 As shown, a transmission cavity is provided in the adjustment seat 500, in which a second transmission gear 503 is rotatably connected, a third transmission gear 504 is engaged with the bottom of the second transmission gear 503, 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 driving assembly, and the second limiting assembly is located in the middle of the top of the adjustment seat 500 and is correspondingly connected to the second transmission gear 503.

[0031] When adjusting the position of the adjustment seat 500, the two adjustment seats 500 are moved inward at the same time through the driving component, so that the two ends of the mounting cylinder 901 at the bottom of the butterfly plate 900 can be limited by the adjustment seat 500, and the second limiting component can be driven to move and enter the interior of the mounting cylinder 901, so that the second limiting component can be adjusted by the driving component later and the mounting cylinder 901 can be positioned in the circumferential direction, thereby realizing the rapid positioning operation of the butterfly plate 900 through the cooperation of the first limiting component and the second limiting component.

[0032] like Figure 10 As shown, the second limiting assembly includes a threaded barrel 704 rotatably connected to the middle of the top of the adjustment base 500, a first transmission gear 705 is fixed on the threaded barrel 704, the first transmission gear 705 is engaged with the top of the second transmission gear 503, an adjusting screw 703 is threadedly connected to the threaded barrel 704, one end of the adjusting screw 703 extends out of the threaded barrel 704 and is fixed with a movable ring stage 702, as shown in FIG. Figure 12As shown, a fixed ring platform 701 is provided on the side wall of the adjustment seat 500 at the outer position corresponding to the threaded cylinder 704. A plurality of arc-shaped positioning plates 700 are evenly arranged along the circumferential direction between the fixed ring platform 701 and the movable ring platform 702. A rubber pad is provided on the outer surface of the positioning plate 700. Two symmetrical and inclined push-pull rods 706 are rotatably connected to the inner side surface of the positioning plate 700. Figure 14 As shown, a plurality of grooves are evenly arranged on the fixed ring platform 701 and the movable ring platform 702 along the circumferential direction, and the other end of the push-pull rod 706 is rotatably connected to the corresponding groove.

[0033] When the adjustment seat 500 moves to the two ends of the mounting cylinder 901, multiple positioning plates 700 extend into the interior of the mounting cylinder 901, and the transmission cylinder 501 is rotated by the driving assembly, and the threaded cylinder 704 is rotated through the transmission of the third transmission gear 504, the second transmission gear 503 and the first transmission gear 705. The adjusting screw 703 is restricted by the movable ring platform 702, the fixed ring platform 701, the push-pull rod 706 and other structures, and can only move along the horizontal axis, thereby driving the movable ring platform 702 and the ends of the multiple push-pull rods 706 on one side to approach the adjustment seat 500, and then through the movement of the multiple push-pull rods 706 on both sides, the positioning plates 700 are pushed outward, so that the multiple positioning plates 700 are in contact with the inner wall of the mounting cylinder 901 at the same time, realizing the positioning operation of the mounting cylinder 901 and the butterfly plate 900.

[0034] like Figure 15 As shown, the drive assembly includes two axle mounting plates 807 symmetrically fixed to the middle of the top of the rotating platform 400. The lower and upper parts of the two axle mounting plates 807 are rotatably connected to the first drive shaft 800 and the second drive shaft 801 respectively. The 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 two side sections of the first drive shaft 800 are provided with threads with opposite rotation directions, and are respectively connected with the lower part of the adjustment seat 500 on both sides by threads. The two side sections of the second drive shaft 801 are respectively provided with multiple transmission grooves 802 evenly along the circumferential direction, and the second drive shaft 801 passes through the transmission cylinders 501 on both sides. Figure 13 As shown, a plurality of transmission blocks 502 are correspondingly fixed on the inner side wall of the transmission cylinder 501, and the transmission blocks 502 are slidably connected to the transmission groove 802; A first gear 803 is fixed on the first drive shaft 800, and a second gear 804 is meshed with the first gear 803. A third gear 805 is fixed on the second drive shaft 801, and a fourth gear 806 is meshed with the third gear 805. The second gear 804 and the fourth gear 806 are both rotatably connected to the axle mounting plate 807 and are respectively connected to motors.

[0035] When the butterfly plate 900 is positioned, 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, so that the two adjustment seats 500 are moved toward the middle at the same time through the action of the thread, so as to limit the two ends of the mounting cylinder 901 and make the multiple positioning plates 700 of the second limiting assembly 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 adjustment seat 500, the transmission block 502 on the transmission cylinder 501 is always connected with the transmission groove 802 on the second drive shaft 801, so that when the second drive shaft 801 rotates, the transmission cylinder 501 rotates accordingly, and then the positions of the multiple positioning plates 700 are adjusted by transmission to achieve the limitation of the circumferential direction of the mounting cylinder 901.

[0036] Example 3: The structure of this embodiment is basically the same as that of Example 2, except that Figure 7 As shown, the placement assembly includes a connecting hoop 604 fixed to the upper part of the fixed column 401, and horizontal fixed arc plates 602 are fixed on both sides of the two connecting hoop rings 604 respectively. The top of the fixed arc plate 602 is connected to the placement arc plate 600 through a plurality of evenly arranged springs, and the bottom of the placement arc plate 600 is evenly fixed with a plurality of vertical guide shafts 601, 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.

[0037] When the butterfly plate 900 is loaded, it is placed on top of the two placing arc plates 600, and under the action of gravity, the compression spring of the placing arc plate 600 moves downward, and the mounting tube 901 of the butterfly plate 900 moves downward close to the second limit assembly, so that the butterfly plate 900 can be positioned by the first limit assembly and the second limit assembly subsequently, and the shape of the placing arc plate 600 can ensure effective contact and support on both sides of the bottom of the butterfly plate 900.

[0038] like Figure 7 、 Figure 8 As shown, the bidirectional rotation assembly includes two rotating frames 403 arranged symmetrically and in parallel. 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 the rear ends. A door-shaped mounting frame 402 is fixed to the top of the two rotating frames 403. The middle of the mounting frame 402 is rotatably connected to a center column 408. The rotating platform 400 is fixed to the top of the center column 408. A plurality of teeth are evenly fixed on the lower part of the side wall of the center column 408 along the circumferential direction, and a driving gear 409 is meshed with the teeth. The driving gear 409 is connected to a motor, and the motor is fixed to the mounting frame 402. The two ends of the mounting frame 402 are symmetrically arranged and rotatably connected with inclined adjustment links 405, the outer end of the adjustment link 405 is rotatably connected with an adjustment block 406, an adjustment hydraulic rod 407 is connected between the inner end of the adjustment block 406 and the top of the base 100, and the bottom of the connecting plate 404 is provided with grooves with openings facing downwards at the positions corresponding to the two adjustment hydraulic rods 407.

[0039] After the positioning operation of the butterfly plate 900 is completed, the adjustment block 406 is moved inward along the top of the base 100 by adjusting the hydraulic rod 407, so that the top of the adjustment link 405 pushes the mounting frame 402 and the rotating frame 403 to rotate, and then the rotating frame 403 and the mounting frame 402 and other structures drive the rotating table 400 and the butterfly plate 900 workpiece on it to tilt toward the dust collection assembly, as shown in FIG. Figure 9 As shown, the butterfly plate 900 is kept parallel to the pressure plate 204 and the grinding disc 303; After the pressure plate 204 contacts the middle of the top of the butterfly plate 900 and achieves the positioning effect, the center column 408 drives the rotating table 400 to rotate through the motor and the driving gear 409, and then drives the butterfly plate 900 to rotate in the circumferential direction through the first limit assembly and the second limit assembly, 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.

[0040] Example 4: The structure of this example is basically the same as that of Example 1, except that Figure 4 、 Figure 5 As shown, the rotating telescopic assembly includes a rotating round seat 201 rotatably connected to the movable seat 200, and a plurality of spring rods 202 are evenly arranged on the rotating round seat 201 along the circumferential direction. The bottom ends of the plurality of spring rods 202 pass through the rotating round seat 201 and are fixedly connected to the top surface of the pressure plate 204, and a spring plate 203 is fixed to the top end of the spring rod 202, and the spring plate 203 is connected to the top surface of the rotating round seat 201 through a spring, and a first electromagnet 205 and a second electromagnet 206 are fixed to the bottom of the rotating round seat 201 and the top surface of the pressure plate 204 respectively, and the first electromagnet 205 and the second electromagnet 206 are electrically connected to a power supply and a switch.

[0041] When the rotating table 400 positions the butterfly plate 900 and rotates it parallel to the pressure plate 204, the first electromagnet 205 and the second electromagnet 206 are energized to repel each other, so that the pressure plate 204 moves toward the butterfly plate 900 under the guidance of the spring rod 202 and presses tightly on the butterfly plate 900, thereby pressing and positioning the top of the butterfly plate 900, improving the positioning effect and the position 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, which will not hinder the rotation of the butterfly plate 900 and avoid affecting the rotation and grinding of the butterfly plate 900.

[0042] 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 moving base 200. The first guide frames 301 are parallel to the moving base 200, and the sliding base 300 is slidably connected to the first guide frames 301. A through slot is provided in the sliding base 300 at a position corresponding to the first guide frame 301. A traveling gear 304 is rotatably connected inside the through slot. The traveling gear 304 is connected to a motor, and a plurality of teeth are evenly arranged on the bottom of the first guide frame 301, and meshes with the traveling gear 304 through the teeth. A mounting plate 305 is fixed between the lower portions 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 of the plate. The two ends of the blow pipe 308 are fixedly connected to the front sides of the two sliding seats 300 through a bracket, and multiple nozzles are evenly arranged 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.

[0043] When adjusting the positions of the pressing plate 204 and the grinding disc 303 , the moving assembly drives the moving seat 200 and the first guide frame 301 to move, thereby adjusting the positions of the grinding disc 303 and the pressing plate 204 ; When the grinding assembly is working, the motor rotates the travel gear 304, thereby driving the sliding seat 300 and the grinding disc 303 thereon and other structures to move along the first guide frame 301, and adjusting the position of the grinding disc 303 relative to the center of the butterfly plate 900 so as to correspond to the radial position of the first step surface 903 or the second step surface 904 on the butterfly plate 900; Then, the lifting hydraulic rod 306 is started to make the lifting horizontal plate 307 drive the grinding disc 303 to approach the butterfly plate 900 and contact the grinding position, so that the grinding disc 303 is driven by the motor to rotate and grind the butterfly plate 900.

[0044] While polishing, the polishing position of the butterfly plate 900 is sprayed and cleaned through the air pump 309 and the blow pipe 308, so that the waste dust generated by polishing falls from the butterfly plate 900 and enters the dust collecting component for collection, ensuring the cleaning effect of the butterfly plate 900.

[0045] like Figure 3 As shown, the moving assembly includes two moving screws 102 arranged in parallel and threadedly connected to the moving base 200. Both ends of the moving screw 102 extend out of the moving base 200 and are respectively rotatably connected to the top of the fixed frame 101 on the corresponding side, and one end of the moving screw 102 is connected to a motor.

[0046] When adjusting the position of the grinding disc 303 and the pressure plate 204, the movable screw 102 is driven by the motor to rotate, and then through the action of the thread, the movable seat 200 drives the first guide rod 103 and the structure above it to move, so that the grinding disc 303 moves back and forth between the two workstations, performing grinding work in turn.

[0047] like Figure 2 、 Figure 3 As shown, the dust collecting 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 aggregate filter 105 is fixed in the waste trough 104, and the two ends of the aggregate filter 105 are higher than the middle part, a suction fan 106 is provided on the rear side of the waste trough 104, and suction pipes 107 are provided on both sides of the suction fan 106, and a plurality of suction ports are evenly arranged on the suction pipe 107, and the front end of the suction port extends into the lower part of the inner cavity of the waste trough 104.

[0048] During the grinding process, the waste generated by grinding falls into the waste trough 104, and through the cooperation of the blowing pipe 308 and the suction pipe 107, the fine waste and dust enter the waste trough 104 with the air flow, and the waste dust blown down is collected by the aggregate filter 105, making the waste dust collection faster and more convenient, and avoiding falling on other structures of the grinding equipment, and by setting the aggregate filter 105 to an arc shape, the collected dust can gradually concentrate in the middle of the aggregate filter 105, which is convenient for subsequent cleaning and removal operations.

[0049] Example 5: The structure of this embodiment is basically the same as that of Example 4, except that Figure 5 As shown, a second guide frame 302 is vertically fixed to the bottom of the rear end of the first guide frame 301, and a guide rod 103 is fixed between the middle parts of the 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. When the first guide frame 301 moves with the movable 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, thereby further improving the positional stability of structures such as the grinding disc 303.

[0050] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0051] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automated grinding device for a valve sealing interface, comprising a base (100) and fixing frames (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) at a position corresponding to the position between the two fixing frames (101), and a grinding assembly is provided above the workpiece positioning mechanism, characterized in that: Two workpiece positioning mechanisms are symmetrically provided, and each workpiece positioning mechanism comprises a bidirectional rotating component connected to a base (100) and a circular rotating platform (400) connected to the top of the bidirectional rotating component; First limiting assemblies are symmetrically provided on both sides of the top of the rotating table (400), and second limiting assemblies are respectively provided on the tops of the opposite sides of the two first limiting assemblies. A driving assembly is provided in the middle of the top of the rotating table (400), and placement assemblies are symmetrically provided on both sides of the driving assembly, and the first limiting assemblies and the second limiting assemblies are both connected to the driving assembly accordingly. The top of the fixed frame (101) is provided with a moving assembly, and the moving assembly is connected to an inclined moving seat (200), and the bottom of the moving seat (200) is provided with a circular pressing plate (204) connected to the moving seat (200) via a rotating telescopic assembly, and the pressing plate (204) is parallel to the moving seat (200), and the grinding assembly is connected to the moving assembly and is located at the rear side of the pressing plate (204), and the grinding assembly includes a grinding disc (303) and a blowing pipe (308), and the grinding disc (303) is parallel to the pressing plate (204); A dust collecting assembly is provided on the top rear side of the base (100), the polishing assembly is located above the dust collecting assembly, and the inner side of the rotating table (400) is close to the dust collecting assembly and higher than the front side of the dust collecting assembly.

2. The automatic polishing equipment for valve sealing interface according to claim 1, characterized in that: The first limiting component includes two vertical fixed columns (401) symmetrically fixed to the top of the rotating table (400), the driving component is connected between the two fixed columns (401), and an adjustment seat (500) slidably connected to the top of the rotating table (400) is provided at the inner side of the fixed column (401), the adjustment seat (500) is correspondingly connected to the driving component, a transmission cavity is provided in the adjustment seat (500), a second transmission gear (503) is rotatably connected in the transmission cavity, a third transmission gear (504) is meshed with the bottom of the second transmission gear (503), 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 driving component, and the second limiting component is located in the middle of the top of the adjustment seat (500) and is correspondingly connected to the second transmission gear (503).

3. The automated polishing equipment for valve sealing surfaces according to claim 2, characterized in that: The second limiting assembly includes a threaded barrel (704) rotatably connected to the middle of the top of the adjustment seat (500), a first transmission gear (705) is fixed on the threaded barrel (704), the first transmission gear (705) is engaged with the top of the second transmission gear (503), an adjusting screw (703) is threadedly connected in the threaded barrel (704), one end of the adjusting screw (703) extends out of the threaded barrel (704) and is fixed with a movable ring platform (702), and a corresponding threaded barrel (704) is provided on the side wall of the adjustment seat (500). A fixed ring platform (701) is provided at the outer position, and a plurality of arc-shaped positioning plates (700) are evenly provided along the circumferential direction between the fixed ring platform (701) and the movable ring platform (702). A rubber pad is provided on the outer surface of the positioning plate (700), and two symmetrical and inclined push-pull rods (706) are rotatably connected on the inner side surface of the positioning plate (700). A plurality of grooves are evenly provided on the fixed ring platform (701) and the movable ring platform (702) respectively along the circumferential direction, and the other end of the push-pull rod (706) is rotatably connected to the corresponding groove.

4. The automated grinding equipment for valve sealing surfaces according to claim 3, characterized in that: The driving assembly comprises two axle mounting plates (807) symmetrically fixed to the middle of the top of the rotating platform (400), the lower and upper parts of the two axle mounting plates (807) being rotatably connected to a first driving shaft (800) and a second driving shaft (801), respectively, and both ends of the first driving shaft (800) and the second driving shaft (801) being rotatably connected to fixed columns (401) on both sides; The two side sections of the first drive shaft (800) are provided with threads with opposite rotation directions and are respectively threadedly connected to the lower parts of the adjustment seats (500) on both sides. The two side sections of the second drive shaft (801) are respectively provided with a plurality of transmission grooves (802) evenly distributed along the circumferential direction, and the second drive shaft (801) passes through the transmission cylinders (501) on both sides. A plurality of transmission blocks (502) are correspondingly fixed on the inner side walls of the transmission cylinders (501), and the transmission blocks (502) are slidably connected to the transmission grooves (802). A first gear (803) is fixed on the first drive shaft (800), a second gear (804) is meshed with the first gear (803), a third gear (805) is fixed on the second drive shaft (801), a fourth gear (806) is meshed with the third gear (805), and the second gear (804) and the fourth gear (806) are both rotatably connected to the axle mounting plate (807) and are respectively connected to a motor.

5. The automatic grinding equipment for valve sealing interface according to claim 2, characterized in that: The placement assembly includes a connecting hoop (604) fixed to the upper part of the fixed column (401), and horizontal fixed arc plates (602) are fixed on both sides of the two connecting hoop rings (604). The upper part of the fixed arc plate (602) is connected to the placement arc plate (600) through multiple springs evenly arranged. The bottom of the placement arc plate (600) is evenly fixed with multiple vertical guide shafts (601), 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 polishing equipment for valve sealing surfaces according to claim 1, characterized in that: The rotary telescopic assembly comprises a rotary round seat (201) rotatably connected to a movable seat (200), a plurality of spring rods (202) being evenly arranged on the rotary round seat (201) along a circumferential direction, the bottom ends of the plurality of spring rods (202) passing through the rotary round seat (201) and being fixedly connected to the top surface of a pressure plate (204), and a spring plate (203) being fixed to the top end of the spring rod (202), the spring plate (203) being connected to the top surface of the rotary round seat (201) via a spring, a first electromagnet (205) and a second electromagnet (206) being fixed to the bottom of the rotary round seat (201) and the top surface of the pressure plate (204), respectively, and the first electromagnet (205) and the second electromagnet (206) being electrically connected to a power supply and a switch.

7. The automated polishing equipment for valve sealing surfaces according to claim 1, characterized in that: The polishing assembly comprises two parallel first guide frames (301) symmetrically fixed to the rear side of the movable seat (200), the first guide frames (301) being parallel to the movable seat (200), and the first guide frames (301) being slidably connected to the sliding seat (300), a through slot being provided in the sliding seat (300) at a position corresponding to the first guide frame (301), a traveling gear (304) being rotatably connected inside the through slot, the traveling gear (304) being connected to a motor, and a plurality of teeth being evenly provided on the bottom of the first guide frame (301), and meshing with the traveling gear (304) through the teeth; A mounting transverse plate (305) is fixed between the lower portions of the two sliding seats (300), the bottom of the mounting transverse plate (305) is connected to a lifting transverse plate (307) via two lifting hydraulic rods (306), the grinding disc (303) is rotatably connected to the middle of the bottom of the lifting transverse plate (307), and a motor is connected to the top end; The two ends of the blowing pipe (308) are fixedly connected to the front side surfaces of the two sliding seats (300) through a bracket, and a plurality of nozzles are evenly arranged at the bottom of the blowing pipe (308), one of the sliding seats (300) is provided with an air pump (309), and one end of the blowing pipe (308) is connected to the air pump (309) through a pipeline.

8. The automated polishing equipment for valve sealing surfaces according to claim 1, characterized in that: The bidirectional rotation assembly includes two rotating frames (403) arranged symmetrically and in parallel, 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 the rear ends, a door-shaped mounting frame (402) is fixed to the top of the two rotating frames (403), the middle of the mounting frame (402) is rotatably connected to the center column (408), the rotating platform (400) is fixed to the top of the center column (408), a plurality of teeth are evenly fixed on the lower part of the side wall of the center column (408) along the circumferential direction, and a driving gear (409) is meshed with the teeth, the driving gear (409) is connected to the motor, and the motor is fixed to the mounting frame (402); The two ends of the mounting frame (402) are symmetrically arranged and rotatably connected with inclined adjustment connecting rods (405), the outer ends of the adjustment connecting rods (405) are rotatably connected with the adjustment blocks (406), and the inner ends of the adjustment blocks (406) and the top of the base (100) are connected with adjustment hydraulic rods (407), and the bottom of the connecting plate (404) is provided with grooves with openings facing downwards at positions corresponding to the two adjustment hydraulic rods (407).

9. The automated polishing equipment for valve sealing surfaces according to claim 1, characterized in that: The moving assembly comprises two moving screws (102) arranged in parallel and threadedly connected to the moving seat (200), both ends of the moving screws (102) extending out of the moving seat (200) and being rotatably connected to the top of the fixed frame (101) on the corresponding side, and one end of the moving screw (102) is connected to a motor.

10. The automatic grinding equipment for valve sealing surfaces according to claim 1, characterized in that: The dust collecting assembly comprises 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 aggregate filter (105) is fixed in the waste trough (104), and the two ends of the aggregate filter (105) are higher than the middle part, a suction fan (106) is provided on the rear side of the waste trough (104), and suction pipes (107) are provided on both sides of the suction fan (106), and a plurality of suction ports are evenly arranged on the suction pipe (107), and the front end of the suction port extends into the lower part of the inner cavity of the waste trough (104).

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