CN211614970U

CN211614970U - Wedge gate valve sealing surface machining tool

Info

Publication number: CN211614970U
Application number: CN201922189275.5U
Authority: CN
Inventors: 王辉; 杜利波; 范红杰; 李吉恩; 王亚兵
Original assignee: Yuanda Vavle Group Co ltd
Current assignee: Yuanda Vavle Group Co ltd
Priority date: 2019-12-07
Filing date: 2019-12-07
Publication date: 2020-10-02
Anticipated expiration: 2029-12-07

Abstract

The utility model relates to a wedge gate valve sealing surface processing tool, which comprises a clamp base and a swing disc arranged on the clamp base through a central shaft, wherein the swing disc makes reciprocating swing motion relative to the clamp base by taking the central shaft as an axis; a swing arm is fixedly arranged on one side of the swing disc, and a swing cylinder for driving the swing disc to reciprocate is arranged at the other end of the swing arm; the valve body positioning disc is fixedly arranged on the swinging disc, a valve body is fixedly arranged on the valve body positioning disc and placed in parallel with the swinging disc, and the central axis of the medium inlet pipe on the valve body, the central axis of the medium outlet pipe on the valve body and the central axis of the upper pipe on the valve cover on the valve body are all parallel to the plane where the swinging disc is located. The angle of the sealing surfaces can be adjusted in a rotating mode, so that the sealing surfaces on two sides can be machined by one-time clamping, and the machining efficiency is greatly improved.

Description

Wedge gate valve sealing surface machining tool

Technical Field

The utility model belongs to gate valve processing equipment, concretely relates to sealed face processing frock of wedge gate valve.

Background

Gate valves are widely used in industrial fields, with the aim of controlling the flow of fluid in a valve body duct through the gate valve. Therefore, in order to ensure reliable sealing of the gate valve, the opposing sealing surfaces of the gate plate and the valve seat are designed to be wedge-shaped structures with a wide top and a narrow bottom, and when the gate plate is closed downwards, the opposing sealing surfaces of the gate plate and the valve seat are gradually squeezed to ensure reliable sealing.

At present, when a valve seat sealing surface of a valve body is machined, an end flange of the valve body is usually clamped and positioned, see Chinese patent applications with application numbers of 201620063345.6 and 201510058865.8, a tool used for machining the valve seat sealing surface is an angle plate fixed on a lathe chuck, a sealing surface on one side is machined by positioning a flange on one side, then the sealing surface on the other side is machined by positioning a flange on the other side after being disassembled, the tool can only machine the sealing surface at one angle by one-time clamping, and the machining efficiency is low, and the size precision and the angle are not easy to control.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a sealed face processing frock of wedge gate valve.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a wedge gate valve sealing surface machining tool comprises a clamp base and a swing disc arranged on the clamp base through a central shaft, wherein the swing disc takes the central shaft as an axis and does reciprocating swing motion relative to the clamp base; a swing arm is fixedly arranged on one side of the swing disc, and a swing cylinder for driving the swing disc to reciprocate is arranged at the other end of the swing arm; the valve body positioning disc is fixedly arranged on the swinging disc, a valve body is fixedly arranged on the valve body positioning disc and placed in parallel with the swinging disc, and the central axis of the medium inlet pipe on the valve body, the central axis of the medium outlet pipe on the valve body and the central axis of the upper pipe on the valve cover on the valve body are all parallel to the plane where the swinging disc is located.

Furthermore, a through hole is formed in the clamp base, the inner diameter of the lower portion of the through hole is larger than the inner diameter of the upper portion of the through hole, so that a yielding hole is formed in the lower portion of the through hole, one end of the center shaft is fixedly connected with the swing disc, the other end of the center shaft penetrates through the upper portion of the through hole and then is provided with a locking nut, and the locking nut is arranged in the yielding hole.

Furthermore, the locking nut is rotatably connected with the bottom wall of the abdicating hole through a first pressure bearing, the swing disc is rotatably connected with the clamp base through a second pressure bearing, and the middle shaft is rotatably connected with the hole wall of the through hole through at least one centering bearing.

Further, still be provided with the lateral wall board on the anchor clamps base, be provided with the pendulum hole on the lateral wall board, the swing arm passes through set up behind the pendulum hole the swing cylinder, the swing arm with the piston rod of swing cylinder is articulated, the body of swing cylinder fixed set up in on the lateral wall board.

Furthermore, the swing disc and/or the valve body positioning disc are/is provided with positioning blocks, and 2 positioning columns are arranged on the side wall plate corresponding to the positioning blocks.

Furthermore, 2 positioning holes are formed in the side wall plate, positioning bolts are adopted for the positioning columns, studs of the positioning bolts penetrate through the positioning holes and slide along the positioning holes, nuts of the positioning bolts are arranged on one sides, close to the swing air cylinders, of the studs, and nuts of the positioning bolts are arranged on one sides, close to the positioning blocks, of the studs.

Further, be provided with 3 valve body locating racks on the valve body positioning disk, be provided with the constant head tank on the valve body locating rack, 3 the constant head tank respectively with the medium import pipe of valve body, medium outlet pipe and valve gap top tube looks adaptation.

The power head assembly is arranged on the base in a sliding mode through a sliding rail and comprises a cutter bar and a milling cutter arranged on the cutter bar; the clamp base is fixedly arranged on the machine base, and the valve body is fixedly arranged on the valve body positioning disc through the pressing device.

Furthermore, the compressing device comprises a clamping plate fixedly arranged at one end of the machine base, a telescopic stand column fixedly arranged at the other end of the machine base, a cross beam arranged at the top of the telescopic stand column, a compressing cylinder arranged on the cross beam, a cylinder body fixedly arranged on the cross beam, a piston rod of the compressing cylinder and the valve body butt, a positioning stand column arranged at the other end of the cross beam, and a clamping hook matched with the clamping plate and arranged at the bottom of the positioning stand column.

Furthermore, the positioning upright post is hinged to the cross beam and comprises an upper post, a middle post and a lower post which are sequentially connected, two ends of the middle post are respectively hinged to the upper post and the lower post, and the clamping hook is fixedly arranged on the lower post.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model arranges the swing disc and arranges the valve body and the swing disc in parallel, thereby adjusting the angle of the sealing surface in a rotating way, and completing the processing of the sealing surfaces at two sides by one-time clamping, thereby greatly improving the processing efficiency; the utility model adopts the swing cylinder to drive the swing disc, realizes the automatic operation of the angle adjustment of the sealing surface and saves the manpower; for the swing terminal point to the swing dish fixes a position, the utility model discloses set up 2 reference columns, when swing dish or valve body positioning disk push up one of them positioning bolt, a sealed face of valve body is perpendicular with the cutter arbor, can carry out the processing of this sealed face, when swing dish or valve body positioning disk rotate to another positioning bolt, another sealed face of valve body is perpendicular with the cutter arbor, can carry out the processing of another sealed face, the utility model discloses the automation of location has been realized through the setting of 2 reference columns, the uncontrollable of angle when having avoided the swing of swing dish, has still improved the precision of processing simultaneously; for different valve bodies, the inclination angle of the sealing surface is often inconsistent, in order to make the utility model be suitable for all inclination angles of the sealing surface, the utility model discloses a set up the reference column as positioning bolt, and set up positioning bolt's screw post in the locating hole with sliding, through nut and nut restriction screw post in the locating hole gliding displacement distance, through the position of adjustment nut, limit the length of screw post in the inboard of lateral wall board, to different valve bodies, sealing surface of different inclination, only need to rotate the nut, can adjust the length of screw post in the inboard of lateral wall board, reach the purpose of adjusting the location angle of swinging tray, make it can be applied to the valve body of the sealing surface of different inclination, very big reinforcing this processing frock's application range; to different valve bodies, the size of valve body also has the difference, the utility model discloses a with the valve body with swing dish parallel placement to spacing between valve body positioning disk and closing device with the valve body through compressing tightly the cylinder, the setting of this structural style has made things convenient for the interval between adjustment valve body positioning disk and the closing device, thereby can be applicable to the processing of the valve body of multiple size.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a perspective cross-sectional view of another angle according to an embodiment of the present invention;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 is a perspective view of a valve body positioning plate according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of a clamp base in an embodiment of the invention;

FIG. 6 is a schematic structural view of the present invention when a sealing surface is processed;

FIG. 7 is a schematic structural view of the present invention when another sealing surface is processed;

in the figure, 1, a clamp base, 2, a middle shaft, 3, a swing disc, 4, a swing arm, 5 and a swing cylinder; 6. the valve body positioning plate 7, the valve body 8, the medium inlet pipe 9, the medium outlet pipe 10, the valve cover upper pipe 11, the abdicating hole 12 and the through hole; 13. the locking device comprises a locking nut, 14, a first pressure bearing, 15, a centering bearing, 16, a side wall plate, 17, a swing hole, 18, a strip-shaped hinge hole, 19, a hinge shaft, 20, a positioning block, 21, a positioning bolt, 22, a stud, 24, a nut, 25, a nut, 26, a valve body positioning frame, 27, a sealing surface, 28, a machine base, 29, a power head assembly, 30, a cutter rod, 31 and a milling cutter; 32. the clamp plate, 33, the telescopic upright post, 34, the cross beam, 35, the pressing cylinder, 36, the positioning upright post, 37, the clamping hook, 38, the upper post, 39, the middle post, 40, the lower post, 41 and the second pressure bearing.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model relates to a wedge gate valve sealing surface processing tool, as shown in fig. 1-7, comprising a clamp base 1, a swing disc 3 arranged on the clamp base 1 through a central shaft 2, wherein the swing disc 3 makes reciprocating swing motion relative to the clamp base 1 by taking the central shaft 2 as an axis; a swing arm 4 is fixedly arranged on one side of the swing disc 3, and a swing cylinder 5 for driving the swing disc 3 to reciprocate is arranged at the other end of the swing arm 4; the swing disc 3 is fixedly provided with a valve body positioning disc 6, the valve body positioning disc 6 is fixedly provided with a valve body 7 placed in parallel with the swing disc 3, and the central axis of a medium inlet pipe 8 on the valve body 7, the central axis of a medium outlet pipe 9 on the valve body 7 and the central axis of a valve cover upper pipe 10 on the valve body 7 are all parallel to the plane where the swing disc 3 is located. The utility model discloses a set up swing dish 3, and with valve body 7 with swing dish 3 parallel placement to can adjust the angle of sealed face 27 through the pivoted mode, thereby make the processing that the sealed face 27 of both sides can be accomplished to clamping, very big improvement the efficiency of processing.

Further, a through hole 12 is formed in the fixture base, the inner diameter of the lower portion of the through hole 12 is larger than the inner diameter of the upper portion of the through hole 12, so that a yielding hole 11 is formed in the lower portion of the through hole 12, one end of the center shaft 2 is fixedly connected with the swing disc 3, a locking nut 13 is arranged after the other end of the center shaft 2 penetrates through the upper portion of the through hole 12, and the locking nut 13 is arranged in the yielding hole 11.

Furthermore, the locking nut 13 is rotatably connected to the bottom wall of the relief hole 11 through a first pressure bearing 14, the swing disc 3 is rotatably connected to the fixture base 1 through a second pressure bearing 41, and the central shaft 2 is rotatably connected to the hole wall of the through hole 12 through at least one centering bearing 15.

Further, a side wall plate 16 is further arranged on the clamp base 1, a swing hole 17 is formed in the side wall plate 16, the swing arm 4 is provided with the swing cylinder 5 after passing through the swing hole 17, the swing arm 4 is hinged to a piston rod of the swing cylinder 5, and a cylinder body of the swing cylinder 5 is fixedly arranged on the side wall plate 16;

the swing arm 4 is provided with a strip-shaped hinge hole 18, a hinge shaft 19 is arranged on a piston rod of the swing cylinder 5, and the width of the strip-shaped hinge hole 18 is equal to the outer diameter of the hinge shaft 19. The utility model discloses swing dish 3 adopts swing cylinder 5 drives, has realized the automation mechanized operation of sealed 27 angular adjustment of face, has practiced thrift the manpower.

Furthermore, the swing disc 3 and/or the valve body positioning disc 6 are provided with positioning blocks 20, and 2 positioning columns are arranged on the side wall plate 16 at positions corresponding to the positioning blocks 20. For fixing a position swing terminal point to swing dish 3, the utility model discloses set up 2 reference columns, when swing dish 3 or 6 tight one of them positioning bolt 21 in top of valve body positioning disk, a sealed face 27 of valve body 7 is perpendicular with cutter arbor 30, can carry out the processing of this sealed face 27, when swing dish 3 or 6 rotations of valve body positioning disk to another positioning bolt 21, another sealed face 27 of valve body 7 is perpendicular with cutter arbor 30, can carry out the processing of another sealed face 27, the utility model discloses a setting up of 2 reference columns has realized the automation of location, and the uncontrollable of angle when having avoided swing dish 3 to swing has still improved the precision of processing simultaneously.

As a preferred embodiment of the utility model relates to a sealed face processing frock of wedge gate valve, be provided with 2 locating holes on the lateral wall board 16, the reference column adopts positioning bolt 21, positioning bolt 21's double-screw bolt 22 runs through the locating hole, and follow the locating hole slides, positioning bolt 21's nut 24 set up in be close to on the double-screw bolt 22 one side of swing cylinder 5, positioning bolt 21's nut 25 set up in be close to one side of locating piece 20 on the double-screw bolt 22. To different valve bodies 7, the inclination of sealed face 27 often is inconsistent, for making the utility model is suitable for a sealed face 27 of all inclination, the utility model discloses a set up the reference column into positioning bolt 21, and slide the screw post with positioning bolt 21 and set up in the locating hole, limit the gliding displacement distance of screw post in the locating hole through nut 24 and nut 25, through adjusting nut 25's position, limit the screw post at the inboard length of lateral wall board 16, to different valve bodies 7, different inclination's sealed face 27, only need rotate nut 25, can adjust the screw post at the inboard length of lateral wall board 16, reach the purpose of adjusting the angle of positioning of wobble plate 3, make its valve body 7 that can be applied to different inclination's sealed face 27, very big reinforcing the application range of this processing frock.

Further, be provided with 3 valve body locating racks 26 on the valve body positioning disk 6, be provided with the constant head tank on the valve body locating rack 26, 3 the constant head tank respectively with the medium import pipe 8 of valve body 7, medium outlet pipe 9 and valve gap top tube 10 looks adaptation.

Further, the power head device further comprises a base 28, wherein a power head assembly 29 is arranged on the base 28 in a sliding mode through a sliding rail, and the power head assembly 29 comprises a cutter bar 30 and a milling cutter 31 arranged on the cutter bar 30; the fixture base 1 is fixedly arranged on the machine base 28.

As the utility model relates to a sealed face processing frock of wedge gate valve another preferred embodiment, valve body 7 through closing device fixed set up in on the valve body positioning disk 6.

Further, the pressing device comprises a clamping plate 32 fixedly arranged at one end of the base 28, a telescopic upright column 33 fixedly arranged at the other end of the base 28, a cross beam 34 arranged at the top of the telescopic upright column 33, a pressing cylinder 35 arranged on the cross beam 34, a cylinder body of the pressing cylinder 35 fixedly arranged on the cross beam 34, a piston rod of the pressing cylinder 35 abutted against the valve body 7, a positioning upright column 36 arranged at the other end of the cross beam 34, and a clamping hook 37 matched with the clamping plate 32 and arranged at the bottom of the positioning upright column 36.

Further, the positioning column 36 is hinged to the cross beam 34, the positioning column 36 includes an upper column 38, a middle column 39 and a lower column 40 which are connected in sequence, two ends of the middle column 39 are hinged to the upper column 38 and the lower column 40 respectively, and the hook 37 is fixedly disposed on the lower column 40. To different valve bodies 7, the size of valve body 7 also has the difference, the utility model discloses a with valve body 7 with 3 parallel placement of swing dish to spacing valve body 7 between valve body positioning disk 6 and closing device through compressing tightly cylinder 35, this structural style's setting has made things convenient for the interval between adjustment valve body positioning disk 6 and the closing device, thereby can be applicable to the processing of the valve body 7 of multiple size.

The utility model discloses a use method:

the utility model discloses during the use, place valve body 7 on valve body positioning disk 6, place trip 37 in the below of cardboard 32, start compressing cylinder 35, along with compressing cylinder 35 piston rod and valve body 7 and supporting tightly, flexible stand 33 extends, location stand 36 stretches, trip 37 and cardboard 32 cooperate, accomplish the fixed of valve body 7, then start swing cylinder 5, drive swing dish 3 and rotate, make swing dish 3 and the reference column support tightly, at this moment, one of them sealed face 27 is perpendicular with cutter arbor 30, slide the unit head at this moment, make milling cutter 31 be located the sealed face 27 department perpendicular with cutter arbor 30, process it; after one sealing surface 27 is machined, the swing air cylinder 5 drives the swing disc 3 to rotate, so that the swing disc 3 is abutted against the other positioning column, at the moment, the other sealing surface 27 is perpendicular to the cutter bar 30, at the moment, the power head is slid, so that the milling cutter 31 is positioned at the other sealing surface 27 perpendicular to the milling cutter, and the milling cutter is machined; after the machining is finished, the pressing cylinder 35 is closed, the telescopic upright column 33 is shortened, and the positioning upright column 36 is bent, so that the clamping hook 37 is separated from the clamping plate 32, and at the moment, the valve body 7 is taken down.

The above-described embodiments are merely preferred examples of the present invention and are not exhaustive of the possible implementations of the present invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.

Claims

1. The wedge gate valve sealing surface machining tool is characterized by comprising a clamp base (1), and a swing disc (3) arranged on the clamp base (1) through a central shaft (2), wherein the swing disc (3) performs reciprocating swing motion relative to the clamp base (1) by taking the central shaft (2) as an axis; a swing arm (4) is fixedly arranged on one side of the swing disc (3), and a swing cylinder (5) for driving the swing disc (3) to reciprocate is arranged at the other end of the swing arm (4); the fixed valve body positioning disk (6) that is provided with on swing dish (3), fixed being provided with on valve body positioning disk (6) with swing dish (3) parallel placement's valve body (7), the axis of medium import pipe (8) on valve body (7) the axis of medium outlet pipe (9) on valve body (7) with the axis of valve gap top tube (10) on valve body (7) all with swing dish (3) place plane parallel.

2. The wedge gate valve sealing surface machining tool according to claim 1, wherein a through hole (12) is formed in the fixture base (1), the inner diameter of the lower portion of the through hole (12) is larger than the inner diameter of the upper portion of the through hole (12), so that a yielding hole (11) is formed in the lower portion of the through hole (12), one end of the middle shaft (2) is fixedly connected with the swing disc (3), a locking nut (13) is arranged after the other end of the middle shaft (2) penetrates through the upper portion of the through hole (12), and the locking nut (13) is arranged in the yielding hole (11).

3. The wedge gate valve sealing surface machining tool according to claim 2, wherein the lock nut (13) is rotatably connected with the bottom wall of the abdicating hole (11) through a first pressure bearing (14), the swing disc (3) is rotatably connected with the clamp base (1) through a second pressure bearing (41), and the middle shaft (2) is rotatably connected with the hole wall of the through hole (12) through at least one centering bearing (15).

4. The tool for machining the sealing surface of the wedge gate valve according to claim 1, wherein a side wall plate (16) is further arranged on the clamp base (1), a swing hole (17) is formed in the side wall plate (16), the swing arm (4) is provided with the swing cylinder (5) after passing through the swing hole (17), the swing arm (4) is hinged to a piston rod of the swing cylinder (5), and a cylinder body of the swing cylinder (5) is fixedly arranged on the side wall plate (16).

5. The tool for machining the sealing surface of the wedge gate valve according to claim 4, wherein the swing disc (3) and/or the valve body positioning disc (6) are/is provided with positioning blocks (20), and 2 positioning columns are arranged on the side wall plate (16) at positions corresponding to the positioning blocks (20).

6. The tool for machining the sealing surface of the wedge gate valve according to claim 5, wherein 2 positioning holes are formed in the side wall plate (16), the positioning columns are positioning bolts (21), studs (22) of the positioning bolts (21) penetrate through the positioning holes and slide along the positioning holes, nuts (24) of the positioning bolts (21) are arranged on one sides, close to the swing cylinders (5), of the studs (22), and nuts (25) are arranged on one sides, close to the positioning blocks (20), of the studs (22).

7. The wedge gate valve sealing surface machining tool according to claim 1, wherein 3 valve body positioning frames (26) are arranged on the valve body positioning disc (6), positioning grooves are formed in the valve body positioning frames (26), and the 3 positioning grooves are respectively matched with the medium inlet pipe (8), the medium outlet pipe (9) and the valve cover upper pipe (10) of the valve body (7).

8. The tool for machining the sealing surface of the wedge gate valve according to any one of claims 1 to 7, further comprising a base (28), wherein a power head assembly (29) is slidably arranged on the base (28) through a sliding rail, and the power head assembly (29) comprises a cutter bar (30) and a milling cutter (31) arranged on the cutter bar (30); the clamp base (1) is fixedly arranged on the machine base (28), and the valve body (7) is fixedly arranged on the valve body positioning disc (6) through a pressing device.

9. The tool for machining the sealing surface of the wedge gate valve according to claim 8, wherein the compressing device comprises a clamping plate (32) fixedly arranged at one end of the base (28), a telescopic upright post (33) fixedly arranged at the other end of the base (28), a cross beam (34) arranged at the top of the telescopic upright post (33), a compressing cylinder (35) arranged on the cross beam (34), a cylinder body of the compressing cylinder (35) is fixedly arranged on the cross beam (34), a piston rod of the compressing cylinder (35) is abutted to the valve body (7), a positioning upright post (36) is arranged at the other end of the cross beam (34), and a clamping hook (37) matched with the clamping plate (32) is arranged at the bottom of the positioning upright post (36).

10. The tool for machining the sealing surface of the wedge type gate valve according to claim 9, wherein the positioning column (36) is hinged to the cross beam (34), the positioning column (36) comprises an upper column (38), a middle column (39) and a lower column (40) which are sequentially connected, two ends of the middle column (39) are respectively hinged to the upper column (38) and the lower column (40), and the clamping hook (37) is fixedly arranged on the lower column (40).