CN117047392A - Anti-deformation device for additive manufacturing of sealing surface of valve seat of metal sealing valve - Google Patents

Anti-deformation device for additive manufacturing of sealing surface of valve seat of metal sealing valve Download PDF

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Publication number
CN117047392A
CN117047392A CN202311252211.XA CN202311252211A CN117047392A CN 117047392 A CN117047392 A CN 117047392A CN 202311252211 A CN202311252211 A CN 202311252211A CN 117047392 A CN117047392 A CN 117047392A
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CN
China
Prior art keywords
clamping
valve seat
power wheel
seat
block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311252211.XA
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Chinese (zh)
Inventor
吴娜
吴洪涛
张旭峰
李静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Quanshun Flow Control Science & Technology Co ltd
Original Assignee
Henan Quanshun Flow Control Science & Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Henan Quanshun Flow Control Science & Technology Co ltd filed Critical Henan Quanshun Flow Control Science & Technology Co ltd
Priority to CN202311252211.XA priority Critical patent/CN117047392A/en
Publication of CN117047392A publication Critical patent/CN117047392A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

The invention relates to the technical field of welding processing, in particular to a metal seal valve seat sealing surface additive manufacturing anti-deformation device, which comprises a base, a driving unit and a clamping unit, wherein the driving unit comprises a power wheel, and the outer circumferential surface of the power wheel is a conical surface; the clamping unit comprises a clamping seat, an adjusting assembly and at least two clamping blocks, one side of the valve seat is slidably arranged on the clamping seat, and the other side of the valve seat is in friction contact with the conical surface of the power wheel so as to rotate along with the power wheel; the at least two clamping blocks are respectively positioned at two sides of the valve seat and are respectively used for clamping the two sides of the valve seat. The power wheel drives the valve seat to rotate, so that the clamping positions of the clamping seat and the clamping block on the valve seat are changed, the local uneven stress of the valve seat caused by fixed-point clamping is avoided, and the deformation of the clamping position of the valve seat is reduced; the rotating speed of the valve seat is regulated by changing the contact position of the power wheel and the valve seat, so that the welding speed can be adapted to different welding speeds, and the clamping effect of the clamping seat and the clamping block on the valve seat is more uniform.

Description

Anti-deformation device for additive manufacturing of sealing surface of valve seat of metal sealing valve
Technical Field
The invention relates to the technical field of welding processing, in particular to an anti-deformation device for additive manufacturing of a sealing surface of a valve seat of a metal seal valve.
Background
The metal sealing valve generally comprises a valve body, a valve seat, a valve plate, a pressing ring and other structures, the valve seat is of an annular structure, the pressing ring is used for pressing and fixing after being installed on the valve body, the valve plate is rotatably installed in the valve body and matched with the valve seat to realize the opening and closing of the sealing valve, and the sealing valve can cause larger abrasion to the sealing surfaces of the valve seat and the valve plate due to frequent rotation of the valve plate in the use process, so that the inner surface of the valve seat and/or the outer surface of the valve plate are required to be subjected to surfacing welding, and the abrasion resistance of the valve plate or the valve seat is increased. When overlaying welding is carried out on valve seats with larger sizes, the valve seats are clamped, the valve seats are enabled to rotate, the inner surface of the valve seats are conveniently overlaid, and the clamping positions of the valve seats are easily deformed due to the fact that the local temperature of the welding positions is too high, so that the precision of the valve seats is affected.
Disclosure of Invention
The invention provides an anti-deformation device for additive manufacturing of a sealing surface of a valve seat of a metal seal valve, which aims to solve the problem that the clamping position of the valve seat is easy to deform during surfacing of the valve seat in the prior art.
The invention relates to an anti-deformation device for additive manufacturing of a valve seat sealing surface of a metal seal valve, which adopts the following technical scheme:
the anti-deformation device for additive manufacturing of the sealing surface of the valve seat of the metal sealing valve is used for clamping the valve seat to be processed and comprises a base, a driving unit and a clamping unit, wherein the driving unit comprises a power wheel, the outer circumferential surface of the power wheel is a conical surface, and the power wheel can rotate and can be axially and slidably arranged on the base along the self; the clamping unit comprises a clamping seat, an adjusting assembly and at least two clamping blocks, wherein the clamping seat is slidably arranged on the base along the radial direction of the power wheel, one side of the valve seat is slidably arranged on the clamping seat, and the other side of the valve seat is in friction contact with the conical surface of the power wheel so as to rotate along with the power wheel; the at least two clamping blocks are respectively positioned at two sides of the valve seat and are respectively used for clamping two parts of the valve seat between the clamping seat and the power wheel; the adjusting component adjusts the contact position of the power wheel and the valve seat, so that the rotation speed of the valve seat is changed, and meanwhile, the adjusting component adjusts the positions of the clamping seat and the clamping block, so that the clamping seat and the clamping block keep clamping action on the valve seat.
Further, the adjusting component comprises a screw, a push block, a rotary drum and a sliding block, the screw is arranged along the radial direction of the power wheel and is rotatably arranged on the base, and the clamping seat is in threaded fit with the screw; the pushing block is arranged on the base in a sliding way along the radial direction of the power wheel and is matched with the screw thread; the rotary drum is coaxially and rotationally connected with the power wheel and can synchronously move up and down with the power wheel; the outside of the rotary drum is provided with a wedge block used for being abutted with the push block, the push block moves under the transmission of the screw rod and pushes the rotary drum to move along the axial direction of the power wheel through the wedge block, so that the power wheel is driven to move along the axial direction of the power wheel; at least two sliding blocks are arranged on two sides of the valve seat respectively, and are arranged on the base in a sliding manner along the radial direction of the power wheel; the rotary drum is provided with a table top for being abutted with the sliding block, and the sliding block is pushed to slide along the radial direction of the power wheel when the rotary drum moves along the axial direction of the power wheel; each clamping block is slidably mounted on one sliding block along the direction perpendicular to the sliding direction of the sliding block, and the clamping blocks are slidably connected with the base through inclined planes so as to move towards the direction close to or away from the valve seat when the clamping blocks slide along the radial direction of the power wheel.
Further, the rotary drum is connected with the base through a first elastic piece, the sliding block is connected with the base through a second elastic piece, and the rotary drum and the sliding block are driven to move and reset when the screw rod reversely rotates through the first elastic piece and the second elastic piece.
Further, the driving unit further comprises a first motor, the first motor is mounted on the base, and the power wheel is connected with an output shaft of the first motor through a spline along the axial direction of the power wheel, so that the power wheel can rotate under the driving of the first motor and can axially move along the self relative to the first motor.
Further, one side of the clamping seat, which is close to the valve seat, is provided with a first clamping seat, a first clamping groove is formed in the first clamping seat, one side of the clamping block, which is close to the valve seat, is provided with a second clamping groove, and the first clamping groove and the second clamping groove are arc-shaped grooves matched with the valve seat.
Further, the first clamping seat is arranged on the clamping seat in a sliding mode along the radial direction of the power wheel, and a pressure sensor is arranged between the first clamping seat and the clamping seat and used for monitoring the clamping force of the clamping seat on the valve seat.
Further, the screw thread on the screw rod is provided with two sections, and the clamping seat and the pushing block are respectively matched with the two sections of screw threads on the screw rod.
Further, the outer circumference of the rotary drum is provided with at least one limiting protrusion, a central hole for installing the rotary drum is formed in the base, a limiting groove matched with the limiting protrusion is formed in the hole wall of the central hole, the rotary drum is installed in the central hole, and the limiting protrusion and the limiting groove are in sliding fit along the axial direction of the rotary drum.
Further, a sliding groove along the radial direction of the power wheel is formed in the base, the clamping seat and the pushing block are both slidably mounted in the sliding groove, and the sliding groove limits the clamping seat and the pushing block to rotate under the cooperation of the clamping seat and the pushing block with the screw rod.
Further, the plurality of clamping units are distributed circumferentially around the power wheel.
The beneficial effects of the invention are as follows: according to the anti-deformation device for the material-adding manufacturing of the sealing surface of the valve seat of the metal seal valve, the valve seat is driven to rotate by the power wheel, so that the clamping positions of the clamping seat and the clamping block on the valve seat are changed, the problem that the valve seat is subjected to uneven local stress during fixed-point clamping is avoided, and the deformation of the clamping position of the valve seat is reduced; the surfacing processing position of the valve seat can be changed, the rotating speed of the valve seat is adjusted by the adjusting component through changing the contact position of the power wheel and the valve seat, the clamping position of the clamping seat and the clamping block on the valve seat is further accelerated, different welding speeds can be adapted, and the clamping effect of the clamping seat and the clamping block on the valve seat is more uniform.
Further, through setting up pressure sensor, can feed back the clamping force of grip slipper to the disk seat in actual course of working to according to the rotational speed of clamping force's change adjustment disk seat, and then reduce the deformation influence of clamping position to the disk seat in the course of working.
Further, by arranging a plurality of clamping units, a plurality of valve seats can be machined simultaneously, and machining efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic overall structure of an embodiment of an additive manufacturing anti-deformation device for a valve seat sealing surface of a metal seal valve according to the present invention;
FIG. 2 is a top view of the overall structure of an embodiment of an additive manufacturing anti-deformation device for a valve seat sealing surface of a metal seal valve of the present invention;
FIG. 3 is a schematic view in section in the direction A-A of FIG. 2;
FIG. 4 is a schematic view in section in the direction B-B in FIG. 2;
FIG. 5 is a side view of the overall structure of an embodiment of an additive manufacturing anti-deformation device for a valve seat sealing surface of a metal seal valve of the present invention;
FIG. 6 is a schematic view in section in the direction C-C of FIG. 5;
FIG. 7 is an enlarged schematic view of FIG. 6 at D;
FIG. 8 is a schematic structural view of a transfer cylinder and a first elastic member in an embodiment of an anti-deformation device for additive manufacturing of a valve seat sealing surface of a metal seal valve according to the present invention;
FIG. 9 is an exploded schematic view of a part of the structure of an embodiment of an additive manufacturing anti-deformation device for a valve seat sealing surface of a metal seal valve according to the present invention;
in the figure: 100. a base; 110. a chute; 120. pushing the push rod; 200. a valve seat; 300. a driving unit; 310. a power wheel; 320. a first motor; 400. a clamping unit; 410. a clamping seat; 411. a clamping seat; 430. a clamping block; 440. a pressure sensor; 510. a screw; 520. a pushing block; 530. a rotating drum; 531. wedge blocks; 532. a limit protrusion; 540. a slide block; 550. a first elastic member; 560. a second elastic member; 570. and a second motor.
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.
An embodiment of a metal seal valve seat sealing surface additive manufacturing anti-deformation device of the present invention is used for clamping a valve seat 200 to be processed, as shown in fig. 1 to 9, and comprises a base 100, a driving unit 300 and a clamping unit 400.
The driving unit 300 includes a power wheel 310, wherein the outer peripheral surface of the power wheel 310 is a conical surface, and the power wheel 310 can rotate and can be axially and slidably arranged on the base 100; specifically, the outer peripheral surface of the power wheel 310 has a large end at an end close to the base 100 and a small end at an end far from the base 100.
The clamping unit 400 includes a clamping seat 410, an adjusting assembly and at least two clamping blocks 430, wherein the clamping seat 410 is slidably mounted on the base 100 along the radial direction of the power wheel 310, one side of the valve seat 200 is slidably mounted on the clamping seat 410, and the other side of the valve seat 200 is in frictional contact with the conical surface of the power wheel 310 so as to rotate with the power wheel 310. At least two clamping blocks 430 are respectively located at two sides of the valve seat 200 and are respectively used for clamping two parts of the valve seat 200 between the clamping seat 410 and the power wheel 310; specifically, the two clamping blocks 430 closest to the power wheel 310 at two sides of the valve seat 200 are a first clamping block and a second clamping block respectively, and an included angle formed by connecting the first clamping block and the second clamping block with the center of the circle of the valve seat 200 is not more than 180 ° towards one side of the power wheel 310, so as to ensure stability of the valve seat 200 when the valve seat 200 is clamped by coacting with the clamping seat 410. The adjusting component adjusts the contact position of the power wheel 310 and the valve seat 200, thereby changing the rotation speed of the valve seat 200, and simultaneously adjusts the positions of the clamping seat 410 and the clamping block 430, so that the clamping seat 410 and the clamping block 430 maintain the clamping action on the valve seat 200.
The power wheel 310 drives the valve seat 200 to rotate, so that the clamping positions of the clamping seat 410 and the clamping block 430 on the valve seat 200 are changed, uneven local stress on the valve seat 200 caused by fixed-point clamping is avoided, the surfacing processing position of the valve seat 200 can be changed, the rotating speed of the valve seat 200 is adjusted by the adjusting component through changing the contact position of the power wheel 310 and the valve seat 200, the clamping positions of the clamping seat 410 and the clamping block 430 on the valve seat 200 are further quickened, different welding speeds can be adapted, and the clamping effect of the clamping seat 410 and the clamping block 430 on the valve seat 200 is more uniform.
In this embodiment, the adjusting assembly includes a screw 510, a push block 520, a drum 530, and a slider 540, the screw 510 is disposed along a radial direction of the power wheel 310 and rotatably mounted to the base 100, and the base 100 restricts the movement of the screw 510 along the radial direction of the power wheel 310; the clamping seat 410 is in threaded fit with the screw 510; the push block 520 is slidably mounted to the base 100 along the radial direction of the power wheel 310 and is threadedly engaged with the screw 510. The rotary drum 530 is coaxially and rotatably connected with the power wheel 310 and can move up and down synchronously with the power wheel 310; specifically, the drum 530 is sleeved outside the power wheel 310, an annular protrusion is provided outside the power wheel 310, an annular groove is provided on the inner wall of the drum 530, and the annular protrusion is in running fit with the annular groove, so that the power wheel 310 can rotate relative to the drum 530 and move up and down synchronously with the drum 530. The rotary drum 530 is externally provided with a wedge 531 which is used for being abutted with the push block 520, the push block 520 moves under the transmission of the screw 510 and pushes the rotary drum 530 to axially move along the power wheel 310 through the wedge 531, and then the power wheel 310 is driven to axially move along the self; the side of the wedge 531 contacting the push block 520 is a slope inclined to the axial direction of the drum 530, and the push block 520 moves the drum 530 axially along the power wheel 310 by pushing the slope of the wedge 531.
At least two sliding blocks 540 are arranged, and the at least two sliding blocks 540 are respectively positioned at two sides of the valve seat 200 and are both arranged on the base 100 in a sliding way along the radial direction of the power wheel 310; the rotary drum 530 is provided with a table surface for abutting against the sliding block 540, and when the rotary drum 530 moves along the axial direction of the power wheel 310, the sliding block 540 is pushed to slide along the radial direction of the power wheel 310; specifically, the sliding block 540 is provided with an inclined plane inclined relative to the axial direction of the drum 530, and the edge of the table top of the drum 530 pushes the inclined plane on the sliding block 540, so as to push the sliding block 540 to move.
Each clamping block 430 is slidably mounted on one of the sliders 540 in a direction perpendicular to the sliding direction of the slider 540, and the clamping blocks 430 are slidably connected with the base 100 through inclined planes so as to move in a direction approaching or separating from the valve seat 200 when sliding along the power wheel 310 along with the sliders 540 in a radial direction; specifically, the base 100 is provided with a push rod 120, one side surface of the clamping block 430 is an inclined surface parallel to the axial direction of the power wheel 310 and inclined relative to the sliding direction of the sliding block 540, and the inclined surfaces of the push rod 120 and the clamping block 430 can be slidably connected through a T-shaped groove, so that the push rod 120 and the clamping block 430 are kept connected, and further, the clamping block 430 can be driven to move reversely when the sliding block 540 moves reversely.
In this embodiment, the drum 530 is connected to the base 100 through the first elastic member 550, the slider 540 is connected to the base 100 through the second elastic member 560, the drum 530 is pushed to move away from the base 100 by the push block 520 during the forward rotation of the screw 510, the drum 530 pushes the slider 540 to move away from the power wheel 310, and the first elastic member 550 and the second elastic member 560 urge the drum 530 and the slider 540 to move and reset during the reverse rotation of the screw 510. And the first elastic member 550 supports the drum 530, in some other embodiments, a telescopic sleeve may be sleeved outside the first elastic member 550, so that the telescopic sleeve connects the drum 530 and the base 100, to increase the stability of supporting the drum 530.
In this embodiment, the driving unit 300 further includes a first motor 320, the first motor 320 is mounted on the base 100, and the power wheel 310 is connected to an output shaft of the first motor 320 through a spline along an axial direction of the power wheel 310, so that the power wheel 310 can rotate under the driving of the first motor 320 and can move along its own axial direction relative to the first motor 320.
In this embodiment, a first clamping seat 411 is disposed on one side of the clamping seat 410 close to the valve seat 200, a first clamping groove is disposed on the first clamping seat 411, a second clamping groove is disposed on one side of the clamping block 430 close to the valve seat 200, and the first clamping groove and the second clamping groove are arc grooves adapted to the valve seat 200.
In the present embodiment, the first clamping seat 411 is slidably mounted on the clamping seat 410 along the radial direction of the power wheel 310, and a pressure sensor 440 is disposed between the first clamping seat 411 and the clamping seat 410, and the pressure sensor 440 is used for monitoring the clamping force of the clamping seat 410 on the valve seat 200. The adjusting assembly further comprises a second motor 570, the second motor 570 is mounted on the base 100 and is used for driving the screw 510 to rotate, the second motor 570 and the pressure sensor 440 can be connected to a control system, the control system can control the start and stop of the second motor 570 according to the pressure value sensed by the pressure sensor 440, for example, when the inner surface of the valve seat 200 is subjected to surfacing, the hardness of the valve seat 200 is reduced due to the influence of high temperature during welding, the reaction force of the valve seat 200 to the clamping seat 410 is reduced, so that the pressure sensed by the pressure sensor 440 is reduced, at the moment, the control system controls the second motor 570 to start, the second motor 570 drives the screw 510 to rotate, the screw 510 enables the power wheel 310 to move away from the base 100 through the push block 520 and the rotary drum 530, and the diameter of the contact position of the power wheel 310 and the valve seat 200 is further increased, so that the rotating speed of the valve seat 200 is increased, and the deformation influence of the clamping position on the valve seat 200 is reduced through the clamping seat 410 and the clamping block 430. In this embodiment, the screw 510 has two threads, and the clamping seat 410 and the pushing block 520 are respectively engaged with the two threads of the screw 510. By arranging two sections of threads, the clamping seat 410 and the pushing block 520 can have different transmission speeds under the transmission with the threads of the screw 510, so that different transmission ratios between the clamping seat 410 and the screw 510 and between the pushing block 520 and the screw 510 can be conveniently set according to the needs.
In this embodiment, at least one limiting protrusion 532 is disposed on the outer circumference of the drum 530, the base 100 is provided with a central hole for installing the drum 530, the hole wall of the central hole is provided with a limiting groove matched with the limiting protrusion 532, the drum 530 is installed in the central hole, and the limiting protrusion 532 and the limiting groove are slidably matched along the axial direction of the drum 530.
In the present embodiment, a sliding groove 110 along the radial direction of the power wheel 310 is provided on the base 100, and the clamping seat 410 and the pushing block 520 are slidably mounted on the sliding groove 110, and the sliding groove 110 limits the clamping seat 410 and the pushing block 520 to rotate under the cooperation with the screw 510.
In this embodiment, there are a plurality of clamping units 400, the plurality of clamping units 400 are circumferentially distributed around the power wheel 310, so that a plurality of valve seats 200 can be machined simultaneously, and two corresponding clamping blocks 430 between two adjacent clamping units 400 are mounted on the same sliding block 540 together, and the second motor 570 of the plurality of clamping units 400 controls the plurality of screws 510 to rotate simultaneously to adjust the rotation speed of the valve seats 200.
When the anti-deformation device for additive manufacturing of the sealing surface of the valve seat of the metal sealing valve is used, the valve seat 200 is clamped in the first clamping groove on the clamping seat 410 and the second clamping groove of the clamping block 430, the valve seat 200 is in friction contact with the conical surface of the power wheel 310, the first motor 320 is started to drive the power wheel 310 to rotate, the clamping positions of the clamping seat 410 and the clamping block 430 on the valve seat 200 are changed by the rotation of the valve seat 200 under the friction contact with the power wheel 310, and meanwhile, the inner wall surface of the valve seat 200 can be subjected to surfacing by welding equipment in the prior art, and the welding equipment can reciprocate along the axial direction of the valve seat 200 to be welded.
The hardness of the valve seat 200 is reduced under the high temperature effect of welding in the welding process, so that the clamping force of the clamping seat 410 on the valve seat 200 is reduced, the pressure sensed by the pressure sensor 440 is reduced, at the moment, the control system controls the second motor 570 to start, the second motor 570 drives the screw 510 to rotate, the screw 510 enables the power wheel 310 to move away from the base 100 through the push block 520 and the rotary drum 530, the diameter of the contact position of the power wheel 310 and the valve seat 200 is increased, and the rotating speed of the valve seat 200 is increased; meanwhile, the clamping seat 410 moves in a direction away from the power wheel 310 under the threaded fit of the screw 510, so that the valve seat 200 integrally moves in a direction away from the power wheel 310, the rotary drum 530 pushes the sliding block 540 to move in a direction away from the power wheel 310 when moving in a direction away from the base 100, the sliding block 540 drives the clamping block 430 to move, and meanwhile, the clamping block 430 moves in a direction close to the valve seat 200 under the sliding fit of the pushing rod 120, so that a second clamping groove on the clamping block 430 keeps fit with the valve seat 200. The displacement of the clamping block 430 can be matched with the displacement of the clamping block 430 by adjusting the angle of the inclined plane of the sliding connection of the clamping block 430 and the push rod 120, and the displacement of the clamping seat 410 can be matched with the displacement of the push valve seat 200 when the power wheel 310 moves by adjusting the pitch of the threads matched with the clamping seat 410.
When the welding speed of the valve seat 200 needs to be adjusted, the rotation speed of the valve seat 200 may be adjusted by the adjustment method described above.
When the valve seat 200 needs to be slowed down, the second motor 570 drives the screw 510 to reversely rotate, the push block 520 moves away from the power wheel 310 under the threaded fit of the screw 510, the push block 520 is separated from the wedge 531 outside the rotary drum 530, the rotary drum 530 is allowed to drive the power wheel 310 to move towards the direction close to the base 100 under the action of the first elastic piece 550 until the inclined surface of the wedge 531 is abutted against the push block 520 again, and the diameter of the contact position of the power wheel 310 and the valve seat 200 is further reduced, so that the rotating speed of the valve seat 200 is reduced; simultaneously, the clamping seat 410 moves to a direction approaching the power wheel 310 under the threaded fit of the screw 510, so that the valve seat 200 integrally moves to a direction approaching the power wheel 310; and the table edge of the rotating drum 530 is separated from the sliding block 540 while the rotating drum 530 moves, so that the sliding block 540 is allowed to move towards the direction approaching the power wheel 310 under the action of the second elastic piece 560 until the inclined surface of the sliding block 540 is abutted against the edge of the table of the rotating drum 530 again; the clamping block 430 moves away from the valve seat 200 in cooperation with the push rod 120 while moving with the slider 540, so as to keep the valve seat 200 always engaged with the second clamping groove when the valve seat 200 moves toward the power wheel 310 as a whole.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (10)

1. Anti-deformation device for additive manufacturing of sealing surface of valve seat of metal sealing valve, which is used for clamping valve seat to be processed, and is characterized in that: comprises a base, a driving unit and a clamping unit,
the driving unit comprises a power wheel, the peripheral surface of the power wheel is a conical surface, and the power wheel can rotate and can axially slide along the power wheel to be arranged on the base;
the clamping unit comprises a clamping seat, an adjusting component and at least two clamping blocks,
the clamping seat is arranged on the base in a sliding manner along the radial direction of the power wheel, one side of the valve seat is arranged on the clamping seat in a sliding manner, and the other side of the valve seat is in friction contact with the conical surface of the power wheel so as to rotate along with the power wheel; the at least two clamping blocks are respectively positioned at two sides of the valve seat and are respectively used for clamping two parts of the valve seat between the clamping seat and the power wheel; the adjusting component adjusts the contact position of the power wheel and the valve seat, so that the rotation speed of the valve seat is changed, and meanwhile, the adjusting component adjusts the positions of the clamping seat and the clamping block, so that the clamping seat and the clamping block keep clamping action on the valve seat.
2. The additive manufacturing anti-deformation device for a valve seat sealing surface of a metal seal valve according to claim 1, wherein: the adjusting component comprises a screw rod, a pushing block, a rotary drum and a sliding block,
the screw is arranged along the radial direction of the power wheel and is rotatably arranged on the base, and the clamping seat is in threaded fit with the screw;
the pushing block is arranged on the base in a sliding way along the radial direction of the power wheel and is matched with the screw thread;
the rotary drum is coaxially and rotationally connected with the power wheel and can synchronously move up and down with the power wheel; the outside of the rotary drum is provided with a wedge block used for being abutted with a push block, the push block moves under the transmission of a screw rod and pushes the rotary drum to axially move along a power wheel through the wedge block,
thereby driving the power wheel to axially move along the self;
at least two sliding blocks are arranged on two sides of the valve seat respectively, and are arranged on the base in a sliding manner along the radial direction of the power wheel; the rotary drum is provided with a table top for being abutted with the sliding block, and the sliding block is pushed to slide along the radial direction of the power wheel when the rotary drum moves along the axial direction of the power wheel;
each clamping block is slidably mounted on one sliding block along the direction perpendicular to the sliding direction of the sliding block, and the clamping blocks are slidably connected with the base through inclined planes so as to move towards the direction close to or away from the valve seat when the clamping blocks slide along the radial direction of the power wheel.
3. The additive manufacturing anti-deformation device for the valve seat sealing surface of the metal seal valve according to claim 2, wherein: the rotary drum is connected with the base through a first elastic piece, the sliding block is connected with the base through a second elastic piece, and the rotary drum and the sliding block are driven to move and reset when the screw rod reversely rotates through the first elastic piece and the second elastic piece.
4. The additive manufacturing anti-deformation device for a valve seat sealing surface of a metal seal valve according to claim 1, wherein: the driving unit further comprises a first motor, the first motor is arranged on the base, and the power wheel is connected with an output shaft of the first motor through a spline along the axial direction of the power wheel, so that the power wheel can rotate under the driving of the first motor and can axially move along the self relative to the first motor.
5. The additive manufacturing anti-deformation device for the valve seat sealing surface of the metal seal valve according to claim 2, wherein: one side of the clamping seat, which is close to the valve seat, is provided with a first clamping seat, a first clamping groove is formed in the first clamping seat, one side of the clamping block, which is close to the valve seat, is provided with a second clamping groove, and the first clamping groove and the second clamping groove are arc-shaped grooves matched with the valve seat.
6. The additive manufacturing anti-deformation device for the valve seat sealing surface of the metal seal valve according to claim 5, wherein: the first clamping seat is arranged on the clamping seat in a sliding manner along the radial direction of the power wheel, and a pressure sensor is arranged between the first clamping seat and the clamping seat and used for monitoring the clamping force of the clamping seat on the valve seat.
7. The additive manufacturing anti-deformation device for the valve seat sealing surface of the metal seal valve according to claim 2, wherein: the screw thread on the screw rod is provided with two sections, and the clamping seat and the pushing block are respectively matched with the two sections of screw threads on the screw rod.
8. The additive manufacturing anti-deformation device for the valve seat sealing surface of the metal seal valve according to claim 2, wherein: the rotary drum outer circumference is provided with at least one spacing arch, and the centre bore that is used for installing the rotary drum has been seted up to the base, and has seted up on the pore wall of centre bore with spacing protruding complex spacing groove, the rotary drum is installed in the centre bore, and spacing protruding and spacing groove follow the axial sliding fit of rotary drum.
9. The additive manufacturing anti-deformation device for the valve seat sealing surface of the metal seal valve according to claim 2, wherein: the base is provided with a chute along the radial direction of the power wheel, the clamping seat and the pushing block are both slidably arranged in the chute, and the chute limits the clamping seat and the pushing block to rotate under the cooperation of the clamping seat and the pushing block with the screw rod.
10. The additive manufacturing anti-deformation device for a valve seat sealing surface of a metal seal valve according to claim 1, wherein: the clamping units are distributed circumferentially around the power wheel.
CN202311252211.XA 2023-09-26 2023-09-26 Anti-deformation device for additive manufacturing of sealing surface of valve seat of metal sealing valve Pending CN117047392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311252211.XA CN117047392A (en) 2023-09-26 2023-09-26 Anti-deformation device for additive manufacturing of sealing surface of valve seat of metal sealing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311252211.XA CN117047392A (en) 2023-09-26 2023-09-26 Anti-deformation device for additive manufacturing of sealing surface of valve seat of metal sealing valve

Publications (1)

Publication Number Publication Date
CN117047392A true CN117047392A (en) 2023-11-14

Family

ID=88659281

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311252211.XA Pending CN117047392A (en) 2023-09-26 2023-09-26 Anti-deformation device for additive manufacturing of sealing surface of valve seat of metal sealing valve

Country Status (1)

Country Link
CN (1) CN117047392A (en)

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Inventor after: Wu Na

Inventor after: Wu Hongtao

Inventor after: Zhang Xufeng

Inventor after: Li Jing

Inventor before: Wu Na

Inventor before: Wu Hongtao

Inventor before: Zhang Xufeng

Inventor before: Li Jing