CN120886136A - A butterfly valve inner seat machining device and machining method - Google Patents
A butterfly valve inner seat machining device and machining methodInfo
- Publication number
- CN120886136A CN120886136A CN202511393772.0A CN202511393772A CN120886136A CN 120886136 A CN120886136 A CN 120886136A CN 202511393772 A CN202511393772 A CN 202511393772A CN 120886136 A CN120886136 A CN 120886136A
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- Prior art keywords
- polishing
- sleeve
- push
- assembly
- guide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention belongs to the technical field of valve seat polishing and grinding, and particularly relates to a device and a method for processing a valve seat in a butterfly valve, wherein the device comprises a workbench, a transmission assembly, a flushing assembly and a grinding assembly; the polishing assembly comprises a hollow shaft and a polishing sleeve, the transmission assembly comprises a motor and a transmission box, the motor is installed inside the transmission box, the motor drives the polishing assembly and the flushing assembly to rotate, and the liquid supply assembly is installed inside the transmission box and connected with the flushing assembly. According to the invention, the air cylinder stretches out, the push rod drives the push rod to move leftwards, the push rod drives the push block I and the push block II to synchronously move through the lantern ring, the fixing component is released from fixing the polishing sleeve, along with the movement of the push rod, the convex block on the push rod jacks up one of the half shaft sleeves, the half shaft sleeve drives the inner annular plate to move through the support plate, the polishing sleeve is separated from the polishing surface, the polishing sleeve is separated from the hole wall, the cutting fluid directly washes metal fragments on the polishing surface, and the abrasion of the metal fragments on the polishing surface is reduced.
Description
Technical Field
The invention belongs to the technical field of valve seat polishing and grinding, and particularly relates to a device and a method for processing a valve seat in a butterfly valve.
Background
The butterfly valve seat is a critical part in the butterfly valve, and the main function is to realize the sealing of the butterfly valve and prevent the leakage of fluid. The butterfly valve is arranged in the valve body, and when the butterfly plate (valve clack) rotates to a closing position, the butterfly valve is tightly attached to the butterfly plate, so that the medium flow is blocked. Its sealing properties directly affect the overall effect and safety of the valve.
During the production of the valve seat, the inner hole of the valve seat is milled by a milling machine, and then transferred to a polishing working procedure, the polishing operation is carried out on the inner hole of the valve seat by a polishing device so as to ensure the smoothness of the inner hole. The existing polishing device is operated by using a polishing head, wherein chips generated by polishing are mainly attached to a hole wall and the polishing head, so that chips in the hole need to be washed by matching with a cutting fluid washing assembly, for example, the invention patent with publication number CN 116787247A.
During polishing of an inner hole of a valve seat, the polishing head continuously clings to the hole wall, if chips enter between the polishing head and the hole wall, cutting fluid cannot directly permeate a polishing surface between the polishing head and the hole wall, the polishing surface is difficult to rinse, and abrasion of the polishing surface is aggravated.
Disclosure of Invention
The invention aims to provide a device and a method for processing a valve seat in a butterfly valve, aiming at the defects of the prior art, so as to solve the technical problems in the prior art.
The butterfly valve inner valve seat machining device comprises a workbench and a polishing table arranged on the workbench, wherein a transmission assembly is slidably arranged on the workbench, the transmission assembly is connected with a flushing assembly and a polishing assembly, a valve seat fixing frame is arranged on the polishing table, the polishing assembly comprises a hollow shaft and a polishing sleeve, the transmission assembly comprises a motor and a transmission box, the motor is internally arranged in the transmission box, the motor drives the polishing assembly and the flushing assembly to rotate, a liquid supply assembly is arranged in the transmission box, the liquid supply assembly is connected with the flushing assembly, a guide block is arranged on the hollow shaft, an inner ring plate is arranged on the inner wall of the polishing sleeve, a guide groove is reserved between the inner ring plate and the polishing sleeve, the guide block is in sliding fit with the guide groove, the guide block is connected with the inner wall of the polishing sleeve through a spring II, a cylinder is arranged in the transmission box, the output end of the cylinder is connected with a push-pull rod, the push rod sequentially penetrates through the flushing assembly and the polishing assembly, a fixing assembly is arranged on the inner ring plate, the rod is connected with the fixing assembly through an adapter sleeve and a push rod, the top of the push-pull plate is respectively connected with two half shaft sleeves through a supporting plate, a magnet is arranged between the two half shaft sleeves, the half shaft sleeves are arranged between the half shaft sleeves and the half shaft sleeve, the half shaft sleeve is matched with the half shaft sleeve and the half shaft sleeve in sliding fit with the bump, and the half shaft sleeve is matched with the half shaft sleeve through the bump sleeve in sliding sleeve.
As a further optimization or improvement of the scheme, the fixing component comprises a first push block and a second push block which are respectively arranged on two sides of the inner annular plate, one side of the inner annular plate is provided with a first sliding groove, a first sliding block is arranged in the first sliding groove in a sliding mode, a first guide sleeve is arranged at the bottom of the first sliding block, a first guide pillar is arranged in the first guide sleeve in a sliding mode, a first push block is arranged at the bottom of the first guide pillar, a first inclined rod is arranged at the bottom of the first push block, and the first inclined rod is in sliding fit with the inclined groove table on the hollow shaft.
As further optimization or improvement, a second sliding groove is formed in the other side of the inner ring plate, a second sliding block is arranged in the second sliding groove in a sliding mode, a second guide sleeve is arranged at the bottom of the second sliding block, a second guide pillar is arranged in the second guide sleeve in a sliding mode, a second push block is fixedly arranged at the bottom of the second guide pillar, an inclined rod is arranged at the top of the second push block, the inclined rod is matched with one inclined surface of the hollow shaft, lantern rings are respectively sleeved on the first push block and the second push block, and a push rod is arranged on the lantern rings.
As further optimization or improvement of this scheme, wash the subassembly and include the hydrojet pipe, offer out the liquid hole on the hydrojet pipe, the intraductal leading cock plate of installation of hydrojet, leading cock plate passes through the rubber nipple and connects the rearmounted plectane, fixed mounting push ring on the push-pull rod, slidable mounting guide arm on the push ring, electromagnetic chuck one and electromagnetic chuck two are installed respectively at the guide arm both ends, install magnetism on leading cock plate and the rearmounted plectane and inhale the piece two respectively, electromagnetic chuck one circular telegram adsorbs magnetism and inhale piece one, electromagnetic chuck two circular telegrams and adsorbs magnetism and inhale piece two.
As a further optimization or improvement of the scheme, the liquid supply assembly comprises a hydraulic pump arranged in the transmission case, the hydraulic pump is connected with a liquid supply head through a pipeline, and the liquid supply head is fixedly arranged on the front plug board.
As a further optimization or improvement of the scheme, the rear circular plate is provided with the slot, the inside of the slot is provided with the retractable insert block, the liquid spraying pipe is provided with the transverse groove, the insert block slides in the transverse groove, the outer wall of the liquid spraying pipe is sleeved with the rotating sleeve, the inside of the rotating sleeve is provided with the spiral groove, the insert block is in sliding fit with the spiral groove, the through holes on the rotating sleeve are larger than the liquid outlet holes, the through holes are obliquely arranged, and the gap between the through holes of the rotating sleeve is smaller than the gap between the liquid outlet holes.
As a further optimization or improvement of the scheme, the inserting block is slidably arranged in the inserting groove and connected with the inner wall of the inserting groove through the spring I, the bolt is arranged on the inserting block, the rear circular plate is provided with the longitudinal groove, and the bolt is located in the longitudinal groove and slides.
As a further optimization or improvement of the scheme, the guide rail is arranged on the workbench and is in sliding connection with the guide table, and the transmission assembly is arranged on the guide table.
A method for processing a valve seat in a butterfly valve, the method being applied to the device for processing a valve seat in a butterfly valve, the method comprising the steps of:
Step S1, fixing a piece to be polished on a polishing table through a clamp, driving a polishing assembly to extend into a hole through the matching of a guide rail and a guide table, starting a motor, driving a flushing assembly and the polishing assembly to rotate, polishing a hole wall through a polishing sleeve, and simultaneously providing cutting fluid for the interior of a liquid spraying pipe through a liquid supply assembly, wherein the cutting fluid flushes the hole wall through a liquid outlet on the liquid spraying pipe;
step S2, during polishing of an inner hole of the valve seat, if a polishing surface between the polishing sleeve and the hole wall enters metal scraps, the air cylinder stretches out, the push rod is driven by the push rod to move, the push rod drives the push block I and the push block II to synchronously move through the lantern ring, and the fixing of the polishing sleeve by the fixing assembly is released;
Step 3, along with the movement of the push-pull rod, a lug on the push-pull rod jacks one of the half-shaft sleeves, the half-shaft sleeves drive the inner annular plate to move through the support plate, the polishing sleeve is separated from the polishing surface, the polishing sleeve is separated from the hole wall, and the cutting fluid directly washes metal scraps on the polishing surface;
step S4, along with rotation of the polishing assembly, the metal scraps attached to the polishing sleeve are thrown off under the action of inertia force, so that the metal scraps attached to the polishing sleeve are cleaned;
and S5, along with the movement of the push-pull rod, the push-pull rod drives the front plug plate to move synchronously, and the front plug plate plugs part of the liquid outlet hole to promote the water pressure of cutting liquid in the liquid spraying pipe to increase and accelerate the flushing force.
The invention has the beneficial effects that:
(1) According to the invention, the air cylinder stretches out, the push rod drives the push rod to move leftwards, the push rod drives the push block I and the push block II to synchronously move through the lantern ring, the fixing component is released from fixing the polishing sleeve, along with the movement of the push rod, the convex block on the push rod jacks up one of the half shaft sleeves, the half shaft sleeve drives the inner annular plate to move through the support plate, the polishing sleeve is separated from the polishing surface, the polishing sleeve is separated from the hole wall, the cutting fluid directly washes metal fragments on the polishing surface, and the abrasion of the metal fragments on the polishing surface is reduced.
(2) Along with the rotation of the polishing assembly, the metal scraps attached to the polishing sleeve are thrown down under the action of inertia force, so that the metal scraps attached to the polishing sleeve are cleaned, meanwhile, along with the movement of the push-pull rod, the push-pull rod drives the front plug plate to move synchronously, the front plug plate is used for plugging part of the liquid outlet hole, the water pressure of cutting liquid in the liquid spraying pipe is increased, and the flushing force is accelerated.
(3) The invention enables a push-pull rod to be connected with a rear circular plate in a mode of absorbing a magnetic suction block II through an electromagnetic chuck II, then pushes an inserting block to enable the inserting block to penetrate through a transverse groove to be matched with a spiral groove on the inner wall of a rotating sleeve, the rear circular plate drives the rotating sleeve to be sleeved on a liquid outlet hole through the inserting block along with the synchronous movement of the push-pull rod, the rear circular plate drives the rotating sleeve to rotate through the inserting block along with the continuous movement of the push-pull rod to enable a through hole on the rotating sleeve to coincide with the liquid outlet hole one by one, and meanwhile, the push-pull rod pushes a front plug plate to move through a push ring to enable the front plug plate to compress gas in a liquid spraying pipe and impact the liquid outlet hole one by one through compressing gas in the liquid spraying pipe, so that cleaning of each liquid outlet hole is realized.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the transmission assembly.
Fig. 3 is a schematic view of the connection structure of the transmission assembly with the flushing assembly and the polishing assembly.
Fig. 4 is a schematic view of the internal structure of the sanding assembly and the rinsing assembly.
Fig. 5 is a schematic view of the internal structure of the grinding assembly.
Fig. 6 is an enlarged view of the a-site structure of fig. 5.
Fig. 7 is an enlarged view of the B-site structure of fig. 5.
Fig. 8 is a schematic structural diagram of the half shaft sleeve.
Fig. 9 is an enlarged view of the C-site structure of fig. 8.
FIG. 10 is a schematic view of the internal structure of the liquid spraying pipe.
Fig. 11 is an enlarged view of the D-site structure of fig. 10.
Fig. 12 is a schematic view of a rotor structure.
Fig. 13 is a schematic view of a spiral groove structure.
The drawing is marked as:
1. a work table; 2, a grinding table, 3, a guide rail, 4, a guide table;
5. the device comprises a transmission assembly, a motor, 502, a transmission case, 503, a driving gear, 504, a driven gear ring, 505, a cylinder, 506 and a push-pull rod;
6. Grinding assembly, 601, hollow shaft, 602, grinding sleeve, 603, inner ring plate, 604, support plate, 605, half shaft sleeve, 606, bump, 607, adapter sleeve, 608, push rod, 609, collar, 610, spring II, 611, guide block, 612, guide groove, 613, magnet;
7. The device comprises a liquid supply assembly 701, a hydraulic pump 702 and a liquid supply head;
8. Flushing assembly, 801, spray pipe, 802, front plug board, 803, rubber sleeve, 804, rear circular board, 805, push ring, 806, guide rod, 807, electromagnetic chuck II, 808, electromagnetic chuck I, 809, magnetic chuck I, 810, magnetic chuck II, 811, rotating sleeve, 812, liquid outlet hole, 813, transverse groove, 814, spiral groove, 815, slot, 816, spring I, 817, longitudinal groove, 818, plug block 819, bolt;
9. Fixing assembly, 901, push block one, 902, push block two, 903, chute table, 904, chute one, 905, slide one, 906, guide sleeve one, 907, guide post one, 908, chute two, 909, chute two, 910, slide two, 911, guide sleeve two, 912, guide post two, 913, chute one.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the valve seat machining device in a butterfly valve comprises a workbench 1 and a polishing table 2 arranged on the workbench 1, wherein a transmission assembly 5 is arranged on the workbench 1 in a sliding manner, the transmission assembly 5 is connected with a flushing assembly 8 and a polishing assembly 6, and a valve seat fixing frame is arranged on the polishing table 2; the polishing assembly 6 comprises a hollow shaft 601 and a polishing sleeve 602, the transmission assembly 5 comprises a motor 501 and a transmission box 502, the motor 501 is installed in the transmission box 502, the motor 501 drives the polishing assembly 6 and the flushing assembly 8 to rotate, a liquid supply assembly 7 is installed in the transmission box 502, the liquid supply assembly 7 is connected with the flushing assembly 8, a guide block 611 is installed on the hollow shaft 601, an inner annular plate 603 is installed on the inner wall of the polishing sleeve 602, a guide groove 612 is reserved between the inner annular plate 603 and the polishing sleeve 602, the guide block 611 is in sliding fit with the guide groove 612, the guide block 611 is connected with the inner wall of the polishing sleeve 602 through a spring II 610, a cylinder 505 is installed in the transmission box 502, the output end of the cylinder 505 is connected with a push-pull rod 506, the push-pull rod 506 sequentially penetrates through the flushing assembly 8 and the polishing assembly 6, a fixing assembly 9 is installed on the inner annular plate 603, the push-pull rod 506 is connected with the fixing assembly 9 through a supporting plate 607 and a push rod 608, the top and the bottom of the inner annular plate 603 are respectively connected with two half sleeves 605 through a supporting plate 604, a magnet is installed between the two half sleeves 605, the push-pull rod 506 is in sliding fit with the half sleeves 606, the bump 606 is fixedly installed on the inner annular plate 603, the half sleeves 606 is matched with the half sleeves 605, the bump 606 is matched with the bump 606, and the bump 606 is matched with the bump 606 is separated from the bump 602, and the bump 602 by the bump 602.
Specifically, the fixing component 9 includes a first push block 901 and a second push block 902 that are separately disposed on two sides of the inner ring plate 603, a first slide groove 904 is formed on one side of the inner ring plate 603, a first slide block 905 is slidably mounted in the first slide groove 904, a first guide sleeve 906 is mounted at the bottom of the first slide block 905, a first guide post 907 is slidably mounted in the first guide sleeve 906, a first push block 901 is mounted at the bottom of the first guide post 907, a first diagonal rod 913 is mounted at the bottom of the first push block 901, and the first diagonal rod 913 is slidably matched with the chute 903 on the hollow shaft 601.
Specifically, a second sliding groove 909 is formed on the other side of the inner ring plate 603, a second sliding block 910 is slidably mounted in the second sliding groove 909, a second guide sleeve 911 is mounted at the bottom of the second sliding block 910, a second guide post 912 is slidably mounted in the second guide sleeve 911, a second push block 902 is fixedly mounted at the bottom of the second guide post 912, a second inclined rod 908 is mounted at the top of the second push block 902, the second inclined rod 908 is in inclined plane fit with one side of the hollow shaft 601, a lantern ring 609 is sleeved on each of the first push block 901 and the second push block 902, and a push rod 608 is mounted on the lantern ring 609.
Specifically, a guide rail 3 is installed on the workbench 1, the guide rail 3 is in sliding connection with a guide table 4, and a transmission assembly 5 is installed on the guide table 4.
It should be noted that, referring to fig. 5 to 7, the present invention makes the polishing sleeve 602 movably connected with the hollow shaft 601 by sliding fit between the guide groove 612 between the polishing sleeve 602 and the inner ring plate 603 and the guide block 611 on the hollow shaft 601.
The first diagonal member 913 and the second diagonal member 908 are obliquely arranged such that the first diagonal member 913 is obliquely arranged upward and the second diagonal member 908 is obliquely arranged downward. In the initial state, referring to fig. 6, the cylinder 505 is contracted, the push rod 506 drives the push rod 608 to move, the first slider 905 slides to the rightmost side of the first chute 904, the first chute 903 is matched with the first chute 913, the first chute 913 drives the first push block 901 and the first guide post 907 to move downwards, the first guide post 907 stretches the spring arranged in the first guide sleeve 906, when the first guide post 907 slides to the bottom of the first guide sleeve 906, the first guide post 907 applies a pulling force to the polishing sleeve 602 through the first guide sleeve 906 and the first slider 905, and further one side of the polishing sleeve 602 and the inner ring plate 603 is fixedly connected with the hollow shaft 601, and similarly, the second slider 910 moves to the rightmost side of the second chute 909, and is matched with the inclined surface of the hollow shaft 601 through the second chute 908, the second guide post 912 drives the second guide sleeve 911 to move downwards, and the second guide post 912 applies a pulling force to the inner ring plate 603 and the polishing sleeve 602 through the second guide sleeve 911, and further the other side of the polishing sleeve 602 and the inner ring plate 603 are fixedly connected with the hollow shaft 601.
The piece of waiting to polish is fixed on polishing platform 2 through anchor clamps, drives polishing assembly 6 and stretches into downthehole through guide rail 3 and guide 4 cooperation, starts motor 501, and motor 501 drives driving gear 503 and rotates, through driving gear 503 and driven ring gear 504 meshing, and motor 501 drives and washes subassembly 8 and polishing assembly 6 and rotate, polishes the pore wall through polishing cover 602, and simultaneously, liquid feed assembly 7 provides the cutting fluid to inside liquid spray pipe 801, and the cutting fluid washes the pore wall through the play liquid hole 812 on the liquid spray pipe 801.
During polishing of an inner hole of a valve seat, if a polishing surface between a polishing sleeve 602 and a hole wall enters metal scraps, a cylinder 505 stretches out, a push rod 506 drives a push rod 608 to move leftwards, the push rod 608 drives a push block I901 and a push block II 902 to synchronously move through a lantern ring 609, the fixation of a fixing component 9 to the polishing sleeve 602 is released, as the push rod 506 moves, a lug 606 on the push rod 506 jacks one half shaft sleeve 605, and the half shaft sleeve 605 drives an inner ring plate 603 to move through a support plate 604 so as to separate the polishing sleeve 602 from the polishing surface;
As the polishing assembly 6 rotates, the metal scraps attached to the polishing sleeve 602 are thrown off under the action of inertia force, so that the metal scraps attached to the polishing sleeve 602 are cleaned, meanwhile, as the push-pull rod 506 moves, the push-pull rod 506 drives the front plug plate 802 to move synchronously, the front plug plate 802 is used for plugging part of the liquid outlet hole 812, the water pressure of the cutting liquid in the liquid spraying pipe 801 is increased, the flushing force is accelerated, and the metal scraps thrown on the hole wall and scraps on the polishing surface are cleared away together.
Referring to fig. 10-13, the flushing assembly 8 includes a liquid spraying pipe 801, a liquid outlet 812 is formed in the liquid spraying pipe 801, a front plug plate 802 is installed in the liquid spraying pipe 801, the front plug plate 802 is connected with a rear circular plate 804 through a rubber sleeve 803, a push ring 805 is fixedly installed on the push rod 506, a guide rod 806 is slidably installed on the push ring 805, a first electromagnetic chuck 808 and a second electromagnetic chuck 807 are respectively installed at two ends of the guide rod 806, a first magnetic chuck 809 and a second magnetic chuck 810 are respectively installed on the front plug plate 802 and the rear circular plate 804, the first electromagnetic chuck 808 is electrified to adsorb the first magnetic chuck 809, and the second electromagnetic chuck 807 is electrified to adsorb the second magnetic chuck 810.
Specifically, the liquid supply assembly 7 includes a hydraulic pump 701 mounted inside the transmission case 502, the hydraulic pump 701 is connected to a liquid supply head 702 through a pipe, and the liquid supply head 702 is fixedly mounted on the front plug 802.
Specifically, a slot 815 is formed on the rear circular plate 804, a retractable insert 818 is mounted in the slot 815, a transverse slot 813 is formed on the liquid spraying pipe 801, the insert 818 slides in the transverse slot 813, a rotating sleeve 811 is sleeved on the outer wall of the liquid spraying pipe 801, a spiral groove 814 is formed in the rotating sleeve 811, the insert 818 is in sliding fit with the spiral groove 814, through holes in the rotating sleeve 811 are larger than the liquid outlet holes 812, the through holes are obliquely arranged, and gaps among the through holes of the rotating sleeve 811 are smaller than those among the liquid outlet holes 812.
Specifically, the insert block 818 is slidably mounted in the slot 815, the insert block 818 is connected to the inner wall of the slot 815 through a first spring 816, a bolt 819 is mounted on the insert block 818, a longitudinal slot 817 is formed in the rear circular plate 804, and the bolt 819 is located in the longitudinal slot 817 to slide.
In the initial state, referring to fig. 10, the first electromagnetic chuck 808 is electrified to adsorb the first magnetic chuck 809, so that the push-pull rod 506 is connected with the front plug plate 802, at this time, the push-pull rod 506 drives the front plug plate 802 to move, and the front plug plate 802 blocks part of the liquid outlet hole 812, so that the water pressure of the cutting liquid inside the liquid spraying pipe 801 is increased, and the flushing force is accelerated.
Because the cutting fluid needs to be filtered and recycled, the cutting fluid used for the second time inevitably leaves tiny filtered scraps, and the scraps are very easy to block the liquid outlet hole 812, therefore, the invention ensures that the push-pull rod 506 is connected with the rear circular plate 804 in a mode that the electromagnetic chuck II 807 adsorbs the magnetic suction block II 810 by powering off the electromagnetic chuck II 808, then pushes the insert 818, and the insert 818 passes through the transverse groove 813 to be matched with the spiral groove 814 on the inner wall of the rotating sleeve 811;
Along with the continuous movement of the push-pull rod 506, the rear circular plate 804 drives the rotating sleeve 811 to rotate through the inserting block 818, so that through holes in the rotating sleeve 811 are overlapped with the liquid outlet holes 812 one by one, meanwhile, the push-pull rod 506 pushes the front plug plate 802 to move through the push ring 805, so that the front plug plate 802 compresses gas in the liquid spraying pipe 801, and the liquid outlet holes 812 are impacted one by one through the gas in the liquid spraying pipe 801, so that cleaning of each liquid outlet hole 812 is realized.
Referring to fig. 1 to 8, the present invention is a method for processing an inner valve seat of a butterfly valve, which is applied to the apparatus for processing an inner valve seat of a butterfly valve according to the above embodiment, and includes the following steps:
Step S1, a piece to be polished is fixed on a polishing table 2 through a clamp, a polishing assembly 6 is driven to extend into a hole through the cooperation of a guide rail 3 and a guide table 4, a motor 501 is started, the motor 501 drives a flushing assembly 8 and the polishing assembly 6 to rotate, the hole wall is polished through a polishing sleeve 602, meanwhile, a liquid supply assembly 7 supplies cutting liquid to the interior of a liquid spraying pipe 801, and the cutting liquid flushes the hole wall through a liquid outlet 812 on the liquid spraying pipe 801;
step S2, during polishing of an inner hole of a valve seat, if a polishing surface between the polishing sleeve 602 and a hole wall enters metal scraps, the air cylinder 505 stretches out, the push rod 506 drives the push rod 608 to move, the push rod 608 drives the push block I901 and the push block II 902 to synchronously move through the lantern ring 609, and the fixing of the fixing assembly 9 to the polishing sleeve 602 is released;
step S3, along with the movement of the push-pull rod 506, a lug 606 on the push-pull rod 506 jacks up one of the half shaft sleeves 605, the half shaft sleeves 605 drive an inner ring plate 603 to move through a support plate 604, so that the polishing sleeve 602 is separated from the polishing surface, the polishing sleeve 602 is separated from the hole wall, and metal scraps on the polishing surface are directly washed by cutting fluid;
step S4, as the polishing assembly 6 rotates, the metal scraps attached to the polishing sleeve 602 are thrown off under the action of inertia force, so that the metal scraps attached to the polishing sleeve 602 are cleaned;
Step S5, along with the movement of the push-pull rod 506, the push-pull rod 506 drives the front plug plate 802 to synchronously move, and the front plug plate 802 blocks part of the liquid outlet 812 through the movement of the front plug plate 802, so that the water pressure of cutting liquid in the liquid spraying pipe 801 is increased, and the flushing force is accelerated.
The implementation principle of the invention is as follows:
In the initial state, referring to fig. 6, the cylinder 505 is contracted, the push rod 506 drives the push rod 608 to move, the first slider 905 slides to the rightmost side of the first chute 904, the first chute 903 is matched with the first chute 913, the first chute 913 drives the first push block 901 and the first guide post 907 to move downwards, the first guide post 907 stretches the spring arranged in the first guide sleeve 906, when the first guide post 907 slides to the bottom of the first guide sleeve 906, the first guide post 907 applies a pulling force to the polishing sleeve 602 through the first guide sleeve 906 and the first slider 905, and further one side of the polishing sleeve 602 and the inner ring plate 603 is fixedly connected with the hollow shaft 601, and similarly, the second slider 910 moves to the rightmost side of the second chute 909, and is matched with the inclined surface of the hollow shaft 601 through the second chute 908, the second guide post 912 drives the second guide sleeve 911 to move downwards, and the second guide post 912 applies a pulling force to the inner ring plate 603 and the polishing sleeve 602 through the second guide sleeve 911, and further the other side of the polishing sleeve 602 and the inner ring plate 603 are fixedly connected with the hollow shaft 601.
The piece of waiting to polish is fixed on polishing platform 2 through anchor clamps, drives polishing assembly 6 and stretches into downthehole through guide rail 3 and guide 4 cooperation, starts motor 501, and motor 501 drives driving gear 503 and rotates, through driving gear 503 and driven ring gear 504 meshing, and motor 501 drives and washes subassembly 8 and polishing assembly 6 and rotate, polishes the pore wall through polishing cover 602, and simultaneously, liquid feed assembly 7 provides the cutting fluid to inside liquid spray pipe 801, and the cutting fluid washes the pore wall through the play liquid hole 812 on the liquid spray pipe 801.
During polishing of an inner hole of a valve seat, if a polishing surface between a polishing sleeve 602 and a hole wall enters metal scraps, a cylinder 505 stretches out, a push rod 506 drives a push rod 608 to move leftwards, the push rod 608 drives a push block I901 and a push block II 902 to synchronously move through a lantern ring 609, the fixation of a fixing component 9 to the polishing sleeve 602 is released, as the push rod 506 moves, a lug 606 on the push rod 506 jacks one half shaft sleeve 605, and the half shaft sleeve 605 drives an inner ring plate 603 to move through a support plate 604 so as to separate the polishing sleeve 602 from the polishing surface;
As the polishing assembly 6 rotates, the metal scraps attached to the polishing sleeve 602 are thrown off under the action of inertia force, so that the metal scraps attached to the polishing sleeve 602 are cleaned, meanwhile, as the push-pull rod 506 moves, the push-pull rod 506 drives the front plug plate 802 to move synchronously, the front plug plate 802 is used for plugging part of the liquid outlet hole 812, the water pressure of the cutting liquid in the liquid spraying pipe 801 is increased, the flushing force is accelerated, and the metal scraps thrown on the hole wall and scraps on the polishing surface are cleared away together.
It should be noted that, because the cutting fluid needs to be filtered and recycled, the cutting fluid used for the second time inevitably remains tiny fragments which cannot be filtered, and the fragments are very easy to block the liquid outlet 812, therefore, the invention makes the push-pull rod 506 connected with the rear circular plate 804 in a mode that the electromagnetic chuck II 807 adsorbs the magnetic chuck II 810 by powering off the electromagnetic chuck II 808, then pushes the insert 818, makes the insert 818 pass through the transverse groove 813 to be matched with the spiral groove 814 on the inner wall of the rotating sleeve 811;
Along with the continuous movement of the push-pull rod 506, the rear circular plate 804 drives the rotating sleeve 811 to rotate through the inserting block 818, so that through holes in the rotating sleeve 811 are overlapped with the liquid outlet holes 812 one by one, meanwhile, the push-pull rod 506 pushes the front plug plate 802 to move through the push ring 805, so that the front plug plate 802 compresses gas in the liquid spraying pipe 801, and the liquid outlet holes 812 are impacted one by one through the gas in the liquid spraying pipe 801, so that cleaning of each liquid outlet hole 812 is realized.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (9)
1. The valve seat machining device in the butterfly valve is characterized by comprising a workbench (1) and a polishing table (2) arranged on the workbench (1), wherein a transmission assembly (5) is arranged on the workbench (1) in a sliding manner, the transmission assembly (5) is connected with a flushing assembly (8) and a polishing assembly (6), and a valve seat fixing frame is arranged on the polishing table (2);
the polishing assembly (6) comprises a hollow shaft (601) and a polishing sleeve (602), the transmission assembly (5) comprises a motor (501) and a transmission case (502), the motor (501) is internally installed in the transmission case (502), the motor (501) drives the polishing assembly (6) and the flushing assembly (8) to rotate, a liquid supply assembly (7) is installed in the transmission case (502), the liquid supply assembly (7) is connected with the flushing assembly (8), a guide block (611) is installed on the hollow shaft (601), an inner annular plate (603) is installed on the inner wall of the polishing sleeve (602), a guide groove (612) is reserved between the inner annular plate (603) and the polishing sleeve (602), the guide block (611) is in sliding fit with the guide groove (612), and the guide block (611) is connected with the inner wall of the polishing sleeve (602) through a second spring (610);
The novel polishing device is characterized in that an air cylinder (505) is arranged in the transmission case (502), the output end of the air cylinder (505) is connected with a push-pull rod (506), the push-pull rod (506) sequentially penetrates through a flushing component (8) and a polishing component (6), a fixing component (9) is arranged on an inner ring plate (603), the push-pull rod (506) is connected with the fixing component (9) through an adapter sleeve (607) and a push rod (608), the top and the bottom of the inner ring plate (603) are respectively connected with two half-shaft sleeves (605) through a support plate (604), a magnet (613) is arranged between the two half-shaft sleeves (605), the push-pull rod (506) is in sliding fit with one half-shaft sleeve (605), a lug (606) is fixedly arranged on the push-pull rod (506) and is matched with one half-shaft sleeve (605), and the lug (606) moves synchronously along with the push-pull rod (506) and pushes the polishing sleeve (602) to be separated from the hole wall through being matched with the half-shaft sleeves (605).
2. The device for machining the valve seat in the butterfly valve according to claim 1, wherein the fixing component (9) comprises a first push block (901) and a second push block (902) which are respectively arranged on two sides of the inner annular plate (603), one side of the inner annular plate (603) is provided with a first sliding groove (904), a first sliding block (905) is slidably arranged in the first sliding groove (904), a first guide sleeve (906) is arranged at the bottom of the first sliding block (905), a first guide post (907) is slidably arranged in the first guide sleeve (906), the first push block (901) is arranged at the bottom of the first guide post (907), a first inclined rod (913) is arranged at the bottom of the first push block (901), and the first inclined rod (913) is in sliding fit with the inclined groove table (903) on the hollow shaft (601).
3. The device for machining the valve seat in the butterfly valve according to claim 2, wherein a second sliding groove (909) is formed in the other side of the inner ring plate (603), a second sliding block (910) is installed in the second sliding groove (909) in a sliding mode, a second guide sleeve (911) is installed at the bottom of the second sliding block (910), a second guide post (912) is installed in the second guide sleeve (911) in a sliding mode, a second pushing block (902) is fixedly installed at the bottom of the second guide post (912), a second inclined rod (908) is installed at the top of the second pushing block (902), the second inclined rod (908) is in inclined plane fit with one side of the hollow shaft (601), lantern rings (609) are sleeved on the first pushing block (901) and the second pushing block (902), and a push rod (608) is installed on the lantern rings (609).
4. The valve seat machining device in the butterfly valve is characterized in that the flushing assembly (8) comprises a liquid spraying pipe (801), a liquid outlet hole (812) is formed in the liquid spraying pipe (801), a front plug plate (802) is installed in the liquid spraying pipe (801), the front plug plate (802) is connected with a rear circular plate (804) through a rubber connecting sleeve (803), a push ring (805) is fixedly installed on the push rod (506), a guide rod (806) is slidably installed on the push ring (805), a first electromagnetic chuck (808) and a second electromagnetic chuck (807) are respectively installed at two ends of the guide rod (806), a first magnetic chuck (809) and a second magnetic chuck (810) are respectively installed on the front plug plate (802) and the rear circular plate (804), the first electromagnetic chuck (808) is electrified to adsorb the first magnetic chuck (809), and the second electromagnetic chuck (807) is electrified to adsorb the second magnetic chuck (810).
5. The device for machining an inner valve seat of a butterfly valve according to claim 4, wherein the fluid supply assembly (7) comprises a hydraulic pump (701) arranged in the transmission case (502), the hydraulic pump (701) is connected with a fluid supply head (702) through a pipeline, and the fluid supply head (702) is fixedly arranged on the front plug plate (802).
6. The device for machining the valve seat in the butterfly valve according to claim 5, wherein the rear circular plate (804) is provided with a slot (815), a retractable insert block (818) is arranged in the slot (815), the liquid spraying pipe (801) is provided with a transverse groove (813), the insert block (818) is positioned in the transverse groove (813) to slide, the outer wall of the liquid spraying pipe (801) is sleeved with a rotating sleeve (811), the rotating sleeve (811) is internally provided with a spiral groove (814), the insert block (818) is in sliding fit with the spiral groove (814), through holes in the rotating sleeve (811) are larger than the liquid outlet holes (812), the through holes are obliquely arranged, and gaps among the through holes of the rotating sleeve (811) are smaller than those among the liquid outlet holes (812).
7. The device for machining the valve seat in the butterfly valve of claim 6, wherein the insert block (818) is slidably mounted in the slot (815), the insert block (818) is connected with the inner wall of the slot (815) through a first spring (816), a bolt (819) is mounted on the insert block (818), a longitudinal groove (817) is formed in the rear circular plate (804), and the bolt (819) is located in the longitudinal groove (817) in a sliding mode.
8. The device for machining the valve seat in the butterfly valve of claim 1, wherein the guide rail (3) is arranged on the workbench (1), the guide rail (3) is in sliding connection with the guide table (4), and the transmission assembly (5) is arranged on the guide table (4).
9. A method for machining a valve seat in a butterfly valve, wherein the method is applied to the valve seat machining device in the butterfly valve as claimed in any one of claims 1 to 8, and the method comprises the following steps:
Step S1, fixing a piece to be polished on a polishing table (2) through a clamp, driving a polishing assembly (6) to extend into a hole through the matching of a guide rail (3) and a guide table (4), starting a motor (501), driving a flushing assembly (8) and the polishing assembly (6) to rotate by the motor (501), polishing a hole wall through a polishing sleeve (602), and simultaneously, providing cutting fluid for the interior of a liquid spraying pipe (801) by a liquid supply assembly (7), wherein the cutting fluid flushes the hole wall through a liquid outlet hole (812) on the liquid spraying pipe (801);
Step S2, during polishing of an inner hole of a valve seat, if a polishing surface between a polishing sleeve (602) and a hole wall enters metal scraps, a cylinder (505) stretches out, a push rod (506) drives a push rod (608) to move, the push rod (608) drives a push block I (901) and a push block II (902) to synchronously move through a lantern ring (609), and the fixing of a fixing component (9) to the polishing sleeve (602) is released;
Step S3, along with the movement of the push-pull rod (506), a lug (606) on the push-pull rod (506) jacks one of the half shaft sleeves (605), the half shaft sleeve (605) drives the inner annular plate (603) to move through the support plate (604) so as to separate the polishing sleeve (602) from the polishing surface, the polishing sleeve (602) is separated from the hole wall, and the cutting fluid is used for directly flushing metal scraps on the polishing surface;
step S4, along with rotation of the polishing assembly (6), the metal scraps attached to the polishing sleeve (602) are thrown off under the action of inertia force, so that the metal scraps attached to the polishing sleeve (602) are cleaned;
And S5, along with the movement of the push-pull rod (506), the push-pull rod (506) drives the front plug plate (802) to synchronously move, and the front plug plate (802) blocks part of the liquid outlet hole (812) through the movement of the front plug plate (802) so as to promote the increase of the water pressure of cutting fluid in the liquid spraying pipe (801) and accelerate the flushing force.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511393772.0A CN120886136B (en) | 2025-09-28 | 2025-09-28 | A butterfly valve inner seat machining device and machining method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202511393772.0A CN120886136B (en) | 2025-09-28 | 2025-09-28 | A butterfly valve inner seat machining device and machining method |
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| CN120886136A true CN120886136A (en) | 2025-11-04 |
| CN120886136B CN120886136B (en) | 2025-12-05 |
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| CN202511393772.0A Active CN120886136B (en) | 2025-09-28 | 2025-09-28 | A butterfly valve inner seat machining device and machining method |
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| CN117943940A (en) * | 2024-03-27 | 2024-04-30 | 张家港市豪华模具有限公司 | Automatic rotation-based metal piece polishing device |
| CN118559590A (en) * | 2024-05-28 | 2024-08-30 | 惠州市盈利高精密五金有限公司 | A hole wall polishing device and method for watch strap production |
| CN119238243A (en) * | 2024-10-08 | 2025-01-03 | 聊城市同心轴承有限公司 | An internal grinding machine for machining precision bearings |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204711714U (en) * | 2015-06-05 | 2015-10-21 | 嘉善五洲无油轴承有限公司 | A kind of horizontal bearing inner cylinder face grinding machine |
| CN112935954A (en) * | 2021-04-21 | 2021-06-11 | 莱西市盈德装备技术中心 | Bearing machining and polishing method |
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| CN120886136B (en) | 2025-12-05 |
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