CN211414418U

CN211414418U - Quick positioning and machining die for rotating shaft hole of valve body

Info

Publication number: CN211414418U
Application number: CN201922288342.9U
Authority: CN
Inventors: 陈建勋; 牛海军; 许丛; 王松松; 许建锋
Original assignee: ZHENGZHOU VALVE FACTORY
Current assignee: ZHENGZHOU VALVE FACTORY
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-04
Anticipated expiration: 2029-12-18

Abstract

The utility model relates to a quick location mold processing in valve body pivot hole belongs to the technical field of valve processing equipment, and it is including the frame of installing drilling tool, and the drilling tool level sets up, and drilling tool just right one side is provided with mounting platform, mounting platform's last fixed surface is provided with the holding ring, and the central axis of holding ring is located the coplanar with drilling tool's horizontal axis, and the fixed eccentric ring that is provided with of intermediate position department of holding ring has an eccentric distance b between the central axis of eccentric ring and holding ring, installs the triangle chuck that is used for pressing from both sides tight work piece on the mounting platform, and the assembly groove with the surface butt of eccentric ring is seted up to the bottom of triangle chuck, the utility model discloses have the.

Description

Quick positioning and machining die for rotating shaft hole of valve body

Technical Field

The utility model belongs to the technical field of the technique of valve processing equipment and specifically relates to a quick location mold processing in valve body pivot hole is related to.

Background

The butterfly valve is also called a flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media. The butterfly valve is a valve in which a closing member (a valve clack or a disc plate) is a disc and rotates around a valve shaft to open and close, and mainly plays a role in cutting off and throttling on a pipeline.

The existing butterfly valve structure is shown in fig. 1, and includes a valve seat 7, two opposite ends of the valve seat 7 are provided with communicating liquid discharge holes 71, a valve rod 73 mounting post 72 is fixedly provided on the circumferential surface of the valve seat 7, a shaft groove 721 communicated with the liquid discharge holes 71 is provided in the valve rod 73 mounting post 72, a valve rod 73 is inserted in the shaft groove 721, a reversible valve flap 74 is provided inside the liquid discharge hole 71, and the valve rod 73 is fixedly connected with the valve flap 74 to drive the valve flap 74 to rotate through the valve rod 73 to open and close the valve. In the manufacture of the conventional butterfly valve, the valve seat 7 is manufactured by casting and welding, and then the shaft slot 721 is drilled in the mounting post 72 of the valve stem 73. In the existing butterfly valves such as the double-eccentric butterfly valve and the triple-eccentric butterfly valve, an eccentric distance b exists between the central line of the liquid discharge hole 71 and the rotation axis of the valve rod 73, and the eccentric distance can greatly eliminate unnecessary excessive extrusion and scraping phenomena of the valve clack 74 and the valve seat 7, reduce abrasion and prolong the service life of the valve.

When the existing butterfly valve is manufactured, firstly, a valve seat is manufactured by casting and welding processes, then, a shaft groove is drilled on a valve rod mounting column, an eccentric distance b exists between the central line of the shaft groove and the central line of a liquid discharge hole, and in the prior art, the position of the valve seat relative to a milling cutter is manually adjusted to drill holes during manufacturing, so that the eccentric requirement is met, but the conditions of insufficient adjustment precision and poor manufacturing precision of a valve body exist in manual adjustment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a quick location mold processing in valve body pivot hole, it has the effect that improves valve body manufacturing accuracy.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a quick location mold processing in valve body pivot hole, is including the frame of installing drilling cutter, and drilling cutter level sets up, and drilling cutter just right one side is provided with mounting platform, mounting platform's last fixed surface is provided with the holding ring, and the central axis of holding ring is located the coplanar with drilling cutter's horizontal axis, and the fixed eccentric ring that is provided with in intermediate position department of holding ring has an eccentric distance b between the central axis of eccentric ring and the central axis of holding ring, installs the triangle chuck that is used for pressing from both sides tight work piece on the mounting platform, and the assembly groove with the surface butt of eccentric ring is seted up to the bottom.

Through adopting above-mentioned technical scheme, because the central axis of holding ring is located the coplanar with the horizontal axis of drilling cutter, and when the installation triangle chuck, the assembly groove is seted up to the bottom of triangle chuck, eccentric ring surface and assembly groove looks adaptation, an eccentric distance b has between the central axis of eccentric ring and the central axis of holding ring, therefore the triangle chuck is after the installation finishes, place the disk seat again and fix on the triangle chuck, make the valve rod erection column just to the drilling cutter this moment, there is an eccentric distance b between the vertical central line that can realize the shaft groove central line of drilling out and outage during drilling, and the holding ring can make the triangle chuck remain to be installed stably on mounting platform, the manufacturing accuracy of valve body has been improved.

The present invention may be further configured in a preferred embodiment as: the upper surface of the positioning ring is provided with a threaded hole, and a screw rod for connecting the positioning ring and the mounting platform in a threaded manner is inserted into the threaded hole.

Through adopting above-mentioned technical scheme, the holding ring inserts the screw rod of establishing through the threaded hole and forms effective fixed with mounting platform, therefore the holding ring is higher to the joint stability of triangle chuck, and then makes triangle chuck higher to the location effect of disk seat, has improved the precision and the stability of disk seat manufacturing.

The present invention may be further configured in a preferred embodiment as: the triangular chuck comprises a chuck body which is fixedly connected with the mounting platform and has a vertical axis, a plurality of movable clamping jaws are arranged on the chuck body along the radial sliding of the chuck body, the chuck body comprises a mounting ring which is abutted against the upper surface of the mounting platform and a clamping ring which is fixedly arranged above the mounting ring, the movable clamping jaws are arranged on the upper surface of the clamping ring in a sliding manner, the mounting ring is fixedly connected with the mounting platform body, and the mounting groove is arranged at the bottom of the mounting ring.

Through adopting above-mentioned technical scheme, the collar provides great supporting area to improve and the mounting platform between place stability and the installation after the stability, and the clamping ring provides the structural support for the normal sliding adjustment of activity jack catch, make the disk seat can be by more tightly of activity jack catch card when placing in clamping ring top, improved the stability of disk seat in drilling operation in-process, when needs bore out the axle slot, at first install the disk seat on three-jaw chuck, concrete mounting means does: the liquid discharge hole axis of the valve seat is vertically placed, the valve seat is placed above the chuck body, the movable clamping jaws are utilized to fix the valve seat, the valve rod mounting column is right opposite to a drilling tool, after the valve rod mounting column is mounted, the drilling tool can be utilized to drill out an axial groove in the valve rod mounting column, drilling operation perpendicular to the axis direction of the liquid discharge hole is achieved, the three-jaw chuck can stably position and mount the valve seat, and drilling stability and convenience of the axial groove are improved.

The present invention may be further configured in a preferred embodiment as: the fixed installation guide that is provided with in one side position department that the mounting ring is close to drilling cutter, the installation guide include with mounting ring fixed connection and the guide pole of vertical setting, the top fixed connection of guide pole has the horizontally side lever, the side lever is parallel with drilling cutter, when the disk seat was by the movable clamping jaw chucking, the upper surface of side lever and the bottom butt of valve rod erection column and axle box and drilling cutter coincidence.

Through adopting above-mentioned technical scheme, place the disk seat in the chuck body top and utilize movable jack catch to fix the back to the disk seat, the upper surface of side lever and the bottom butt of valve rod erection column, consequently can support the valve rod erection column to be favorable to the position of location valve rod erection column, thereby ensure to make the central line of valve rod erection column and the coincidence of the central line of drilling tool when placing the disk seat, improve drilling accuracy.

The present invention may be further configured in a preferred embodiment as: the upper surface of the side rod is provided with an arc-shaped groove, and the arc-shaped groove is in butt fit with the bottom of the valve rod mounting column.

Through adopting above-mentioned technical scheme, the arc wall that is used for supporting the location valve rod erection column is seted up to the upper surface of side lever to make the position of valve rod erection column fix a position faster, manufacturing accuracy improves greatly.

The present invention may be further configured in a preferred embodiment as: and a plurality of groups of fixing components for fixing the three-jaw chuck on the mounting platform are arranged between the mounting ring and the mounting platform.

Through adopting above-mentioned technical scheme, multiunit fixed subassembly can make and realize many places between chuck body and the mounting platform fixed, and fixed stability is higher.

The present invention may be further configured in a preferred embodiment as: the fixing assembly comprises a fixing sheet, a fixing bolt, a fixing nut and a gasket, the thickness of the gasket is consistent with that of the mounting ring, the lower surface of the fixing sheet is abutted to the gasket and the upper surface of the mounting ring, and the fixing nut penetrates through the fixing sheet and then is pressed tightly with the fixing sheet by the fixing nut.

Through adopting above-mentioned technical scheme, when fixing the chuck body on mounting platform, at first place the collar in mounting platform's upper surface, then place the gasket in one side of collar, utilize fixing bolt to pass the stationary blade, stationary blade lower surface and collar upper surface and gasket upper surface butt, screw up fixation nut at fixing bolt's top to compress tightly the stationary blade, utilize the stationary blade to compress tightly the collar, thereby make collar and whole chuck body obtain effectual fixed.

The present invention may be further configured in a preferred embodiment as: the upper surface of the movable clamping jaw is arranged in a gradually-decreasing ladder shape along the direction departing from the radial center of the chuck body.

Through adopting above-mentioned technical scheme, the upper surface of activity jack catch is the echelonment setting that reduces gradually along the direction that deviates from the radial center of chuck body, consequently when the outage size of disk seat is different, can put on the ladder face that the activity jack catch is different to can be applicable to the disk seat of making different models, enlarge application scope.

To sum up, the utility model discloses a beneficial technological effect does:

1. the positioning ring is arranged at the bottom of the three-jaw chuck, and the eccentric ring which is in clamping fit with the assembling groove is fixedly arranged on the upper surface of the positioning ring, so that an eccentric distance b can be formed between the central line of the shaft groove and the central line of the liquid discharge hole when the shaft groove is opened;

2. the installation guide piece is arranged, so that when the valve seat is placed, the center line of the valve rod installation column can be guided to coincide with the center line of the drilling tool, the installation efficiency and convenience of the valve seat are improved, and the opening precision of the shaft groove is improved;

3. through the arc wall at the upper surface setting of side lever and valve rod erection column lower surface butt, improve the convenience and the location efficiency of valve rod erection column location, improve the precision of seting up of axial trough simultaneously.

Drawings

FIG. 1 is a schematic diagram of a prior art butterfly valve;

FIG. 2 is a schematic structural diagram of the present embodiment;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

FIG. 4 is a schematic structural diagram of the mounting platform and the structure above the mounting platform in the present embodiment;

FIG. 5 is an exploded view of the mounting platform and the three-jaw chuck thereabove in this embodiment;

fig. 6 is a partial cross-sectional view of the three-jaw chuck on the mounting platform in this embodiment.

In the figure, 1, a frame; 11. a drilling tool; 2. mounting a platform; 21. mounting grooves; 3. a three-jaw chuck; 31. a chuck body; 311. a mounting ring; 3111. assembling a groove; 312. a clamping ring; 32. a movable jaw; 4. a positioning ring; 41. an eccentric ring; 42. a threaded hole; 43. a screw; 5. installing a guide piece; 51. a guide rod; 52. a side lever; 521. an arc-shaped slot; 6. a fixing assembly; 61. a fixing sheet; 611. passing through the slot; 62. fixing the bolt; 621. locking the nut; 63. fixing a nut; 64. a gasket; 7. a valve seat; 71. a drain hole; 72. a valve stem mounting post; 721. a shaft groove; 73. a valve stem; 74. and the valve clack.

Detailed Description

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

Referring to fig. 2 and 4, for the valve body rotating shaft hole fast positioning processing mold disclosed by the utility model, the rapid positioning processing mold comprises a frame 1 with a drilling tool 11, the drilling tool 11 is horizontally arranged, a driving piece for driving the drilling tool 11 to rotate is fixedly arranged in the frame 1, a mounting platform 2 is arranged at one side opposite to the drilling tool 11, a three-jaw chuck 3 is arranged on the upper surface of the mounting platform 2, the central axis of the three-jaw chuck 3 is vertical, and the three-jaw chuck 3 is fixedly connected with the mounting platform 2 through a fixing component 6, when the drilling operation of the shaft slot 721 is required to be performed on the valve seat 7, the valve seat 7 is firstly placed on the three-jaw chuck 3, the axis of the liquid discharge hole 71 of the valve seat 7 is made to be vertical, the three-jaw chuck 3 is used for positioning and clamping the valve seat 7, and the mounting post 72 of the valve stem 73 is facing the drilling tool 11, the drilling operation of the mounting post 72 of the valve stem 73 by the drilling tool 11 can be performed to drill the shaft slot 721. Due to the arrangement of the three-jaw chuck 3, the valve seat 7 is more stable during drilling operation, and the drilling precision is greatly improved.

As shown in fig. 2 and 4, the three-jaw chuck 3 includes a chuck body 31 and movable jaws 32, the chuck body 31 includes an integrally formed mounting ring 311 and a clamping ring 312, wherein the mounting ring 311 is located below the clamping ring 312 and the cross-sectional dimension of the mounting ring 311 is greater than the cross-sectional dimension of the clamping ring 312, the movable jaws 32 are disposed on the upper surface of the clamping ring 312 and are in sliding fit with the clamping ring 312, the sliding direction of the movable jaws 32 is along the radial direction of the clamping ring 312, the tops of the movable jaws 32 are gradually reduced in a step shape along the direction deviating from the center of the three-jaw chuck 3, and the vertical step surfaces of the movable jaws 32 are disposed in an outward convex arc surface shape on the side deviating from the center of the three-jaw chuck 3. The internal structure of the three-jaw chuck 3 is the same as that of the three-jaw chuck 3 of a general machine tool in the prior art, but in the present embodiment, the three-jaw chuck 3 is installed in an axial vertical manner, so that after the valve seat 7 is positioned by the three-jaw chuck 3, drilling work can be performed in the axial direction of the valve seat 7 perpendicular to the drain hole 71.

Referring to fig. 2 and 3, the upper surface of the mounting platform 2 is provided with a plurality of mounting grooves 21 which are parallel to each other and penetrate through two opposite sides of the mounting platform 2, the mounting grooves 21 are perpendicular to the axis of the drilling tool 11, the cross section of each mounting groove 21 is increased in a step shape from top to bottom, the fixing assembly 6 comprises a fixing piece 61, a fixing bolt 62, a fixing nut 63 and a gasket 64, wherein the nut of the fixing bolt 62 slides in from one end of the mounting groove 21, so that the fixing bolt 62 is kept vertical and stably positioned in the mounting groove 21, the gasket 64 is directly placed on the surface of the mounting platform 2, the gasket 64 is close to the outer edge of the mounting ring 311, the thickness of the gasket 64 is consistent with that of the mounting ring 311, and the fixing piece 61 is. When the three-jaw chuck 3 is fixed, the fixing bolt 62 passes through the through groove 611, the bottom surface of the fixing piece 61 abuts against the gasket 64 and the upper surface of the mounting ring 311, and the fixing nut 63 is screwed onto the fixing bolt 62 to press the fixing piece 61, so that the fixing piece 61 can press the mounting ring 311, and the whole three-jaw chuck 3 can be stably mounted on the surface of the mounting platform 2. In order to ensure the fixing firmness degree of the three-jaw chuck 3, the following two better improvement points exist in the embodiment: firstly, the locking nut 621 is screwed on the fixing bolt 62, and the locking nut 621 is located between the fixing plate 61 and the fixing nut 63, so that a double-nut structure is arranged on the fixing bolt 62, the possibility of looseness is effectively reduced, and the compression quality of the fixing assembly 6 is improved; secondly, a plurality of groups of fixing components 6 are arranged along the circumferential direction of the mounting ring 311, so that the mounting ring 311 is fixed at multiple points, and the mounting stability of the mounting ring 311 is further improved.

Referring to fig. 5 and 6, a positioning ring 4 is disposed on the upper surface of the mounting platform 2, a threaded hole 42 is formed in the upper surface of the positioning ring 4, a screw 43 is inserted into the threaded hole 42, the screw 43 passes through the threaded hole 42 and then is screwed into the mounting platform 2, so that the positioning ring 4 and the mounting platform 2 form a detachable threaded connection, the central axis of the positioning ring 4 and the rotation center line of the drilling tool 11 are located in the same plane, an eccentric ring 41 is fixedly disposed on the upper surface of the positioning ring 4, an eccentric distance b exists between the central axis of the eccentric ring 41 and the central axis of the positioning ring 4, a stepped assembling groove 3111 is formed in the bottom of the mounting ring 311, the assembling groove 3111 is reduced in a stepped manner from top to bottom, the position of the minimum cross-sectional dimension of the assembling groove 3111 is in clamping fit with the eccentric ring 41, and, this enables the eccentric ring 41 to position the mounting ring 311 such that the three-jaw chuck 3 is mounted with its central axis at a deviating eccentric distance b from the central axis of the drilling tool 11. When the valve seat 7 is installed on the three-jaw chuck 3, the central axis of the liquid discharge hole 71 on the valve seat 7 is overlapped with the central axis of the three-jaw chuck 3, and after the valve rod 73 installation column 72 is opposite to the drilling tool 11, an eccentric distance b can be formed between the central axis of the shaft slot 721 drilled on the valve rod 73 installation column 72 and the central axis of the liquid discharge hole 71.

Referring back to fig. 2, the upper surface of the mounting ring 311 is provided with a mounting guide 5, the mounting guide 5 is located between the clamping ring 312 and the drilling tool 11, the mounting guide 5 includes a guide rod 51 vertically fixed on the upper surface of the mounting ring 311, a horizontal side rod 52 is fixedly arranged above the guide rod 51, the upper surface of the side rod 52 is provided with an arc-shaped groove 521, the central axis of the arc-shaped groove 521 coincides with the central axis of the drilling tool 11, when the valve seat 7 is placed on the upper surface of the three-jaw chuck 3 for positioning, the lower surface of the mounting post 72 of the valve rod 73 can be adaptively supported by the arc-shaped groove 521 on the upper surface of the side rod 52, so that the valve seat 7 is better in stability when being positioned and mounted on the three-jaw chuck 3, the accuracy is higher, and the accuracy of.

The implementation principle of the embodiment is as follows: when the shaft slot 721 needs to be opened on the valve seat 7, the valve seat 7 is firstly placed above the three-jaw chuck 3, the vertical stepped surface of the movable jaw 32 is abutted to the inner wall of the liquid discharge hole 71 of the valve seat 7, then the movable jaw 32 is used for clamping the valve seat 7, meanwhile, the bottom surface of the valve rod 73 mounting column 72 is abutted to the arc-shaped slot 521 on the upper surface of the side rod 52, and due to the fact that the bottom of the three-jaw chuck 3 is provided with the positioning ring 4 and the eccentric ring 41, an eccentric distance b exists between the drilling position of the drilling tool 11 on the valve rod 73 mounting column 72 and the vertical axis of the liquid discharge hole 71, the positioning stability of the three-jaw chuck 3 is high, and the opening precision of the shaft slot 721 of the valve rod 73.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a quick location mold processing in valve body pivot hole, is including frame (1) of installing drilling cutter (11), and drilling cutter (11) level sets up, and drilling cutter (11) just right one side is provided with mounting platform (2), its characterized in that: the last fixed surface of mounting platform (2) is provided with holding ring (4), the central axis of holding ring (4) is located the coplanar with the horizontal axis of drilling cutter (11), the fixed eccentric ring (41) that is provided with of intermediate position department of holding ring (4), an eccentric distance b has between the central axis of eccentric ring (41) and the central axis of holding ring (4), install the triangle chuck that is used for pressing from both sides tight work piece on mounting platform (2), assembly groove (3111) with the surface butt of eccentric ring (41) is seted up to the bottom of triangle chuck.

2. The rapid positioning and processing die for the rotating shaft hole of the valve body as claimed in claim 1, wherein: the upper surface of the positioning ring (4) is provided with a threaded hole (42), and a screw rod (43) which is used for connecting the positioning ring (4) and the mounting platform (2) in a threaded manner is inserted into the threaded hole (42).

3. The rapid positioning and processing die for the rotating shaft hole of the valve body as claimed in claim 1, wherein: the triangular chuck comprises a chuck body (31) fixedly connected with a mounting platform (2) and vertical in axis, a plurality of movable clamping jaws (32) are arranged on the chuck body (31) along the radial sliding of the chuck body, the chuck body (31) comprises a mounting ring (311) abutted to the upper surface of the mounting platform (2) and a clamping ring (312) fixedly arranged above the mounting ring (311), the movable clamping jaws (32) are arranged on the upper surface of the clamping ring (312) in a sliding manner, the mounting ring (311) is fixedly connected with the mounting platform (2), and the mounting groove (21) is arranged at the bottom of the mounting ring (311).

4. The rapid positioning and processing die for the rotating shaft hole of the valve body as claimed in claim 3, wherein: the fixed installation guide piece (5) that is provided with in one side position department that collar (311) is close to drilling cutter (11), installation guide piece (5) include with collar (311) fixed connection and vertical guide rod (51) that set up, the top fixed connection of guide rod (51) has horizontally side lever (52), side lever (52) are parallel with drilling cutter (11), when disk seat (7) are by activity jack catch (32) chucking, the upper surface of side lever (52) and the bottom butt of valve rod (73) erection column (72) and axle box (721) and drilling cutter (11) coincidence.

5. The rapid positioning and processing die for the rotating shaft hole of the valve body as claimed in claim 4, wherein the die comprises: the upper surface of the side rod (52) is provided with an arc-shaped groove (521), and the arc-shaped groove (521) is in butt fit with the bottom of the valve rod (73) mounting column (72).

6. The rapid positioning and processing die for the rotating shaft hole of the valve body as claimed in claim 3, wherein: and a plurality of groups of fixing components (6) for fixing the three-jaw chuck (3) on the mounting platform (2) are arranged between the mounting ring (311) and the mounting platform (2).

7. The rapid positioning and processing die for the rotating shaft hole of the valve body as claimed in claim 6, wherein: the fixing assembly (6) comprises a fixing piece (61), a fixing bolt (62), a fixing nut (63) and a gasket (64), the thickness of the gasket (64) is consistent with that of the mounting ring (311), the lower surface of the fixing piece (61) is abutted to the gasket (64) and the upper surface of the mounting ring (311), and the fixing nut (63) penetrates through the fixing piece (61) and then is pressed tightly against the fixing piece (61) through the fixing nut (63).

8. The rapid positioning and processing die for the rotating shaft hole of the valve body as claimed in claim 3, wherein: the upper surfaces of the movable clamping jaws (32) are arranged in a step shape which is gradually reduced along the direction departing from the radial center of the chuck body (31).