CN120680322B

CN120680322B - A drilling device for automatic indexing flanges of large-diameter valves

Info

Publication number: CN120680322B
Application number: CN202511203481.0A
Authority: CN
Inventors: 洪成鑫; 王汉清; 洪小刚
Original assignee: Xiamen Freet Fluid Control Co ltd
Current assignee: Xiamen Freet Fluid Control Co ltd
Priority date: 2025-08-27
Filing date: 2025-08-27
Publication date: 2025-11-11
Anticipated expiration: 2045-08-27
Also published as: CN120680322A

Abstract

This invention relates to the field of valve drilling technology and discloses an automatic indexing flange drilling device for large-diameter valves. The device includes a base and a crossbeam column fixedly mounted above the base. An X-axis platform is positioned above the crossbeam column, and a Z-axis platform is slidably mounted on one side of the X-axis platform. A drilling machine is fixed on the Z-axis platform. A servo motor-driven rotary table is positioned above the base, and a valve is positioned above the rotary table. The rotary table supports the valve's rotation for indexing flange drilling. A braking system is provided on the outer side of the rotary table. The device also includes a clamping part positioned above the base. This invention utilizes the cooperation between a first telescopic plate and a mounting seat, and then the cooperation between an extension plate, the mounting seat, and the valve to push the extension plate out from inside the mounting seat. This allows the extension plate to extend to the upper surface of the valve and adsorb drilling debris, improving the cleanliness of the valve borehole.

Description

Automatic indexing flange drilling equipment for large-caliber valve

Technical Field

The invention relates to the technical field of valve drilling, in particular to automatic indexing flange drilling equipment for a large-caliber valve.

Background

The valve drilling processing of the large-caliber valve has higher requirements on precision, efficiency and automation degree, the traditional manual or semi-automatic equipment has the problems of large positioning error, low production efficiency and the like, and the automatic indexing flange drilling equipment realizes the high-precision drilling processing of the large-caliber valve by integrating mechanical, electrical, numerical control systems and intelligent indexing technologies and is widely applied to the valve manufacturing in the fields of petrochemical industry, electric power, metallurgy and the like.

In the process of drilling a large-caliber valve, certain defects generally occur, such as large dead weight of the large-caliber valve, more burrs exist on the surface of the valve during drilling, and the burrs remain in the hole, so that manual intervention is difficult to treat in time, and the valve is easy to vibrate when clamping is unstable, so that the problems of rough hole wall, poor hole diameter or cutter breakage are caused, and hidden dangers affecting the stability and the machining precision of the valve can exist.

Disclosure of Invention

The invention provides a drilling device for an automatic indexing flange plate of a large-caliber valve, which reduces vibration during drilling by using clamping force applied to the inner diameter and the outer diameter of the valve, timely adjusts the height and the like required by the valve according to the clamping force, and simultaneously triggers an adsorption part to adsorb burrs on the surface of the valve, thereby improving stability and avoiding secondary pollution so as to promote finish machining.

In order to solve the technical problems, the technical scheme of the invention is as follows:

In a first aspect, a drilling equipment for automatic indexing flange plate of heavy-calibre valve, including base and fixed mounting at the crossbeam stand of base top, crossbeam stand top is provided with X axle platform, one side of X axle platform slides and is provided with Z axle platform, be fixed with the drilling machine on the Z axle platform, the base top is provided with by servo motor drive swivel work head, swivel work head top is provided with the valve, and swivel work head supports the valve rotation in order to carry out indexing flange drilling, the swivel work head outside is provided with braking system, still includes:

the clamping part is arranged above the base and is positioned outside the rotary workbench so as to clamp the valve;

The clamping part comprises a clamping piece and a downward moving piece, the clamping piece is arranged above the valve and connected with the base, the clamping piece is connected with the downward moving piece, and the downward moving piece is arranged on the inner wall of the clamping piece;

The chip removing part is arranged above the valve and on the inner wall of the valve so as to clean chips after drilling the valve;

The chip removing part comprises an adsorption piece and a storage piece, the adsorption piece is arranged above the valve, the universal piece is arranged on the inner wall of the valve, and the storage piece is connected with the adsorption piece;

the circulating piece is arranged at the outer side of the valve and connected with the chip removing part so as to recover burrs;

the circulation piece includes air outlet piece and driving piece, the air outlet piece sets up in storage piece one side, and is connected with the driving piece, the driving piece sets up in the air outlet piece outside.

Further, the clamping member includes:

The electric rods are symmetrically arranged above the base and surround the valve, and three first motors are symmetrically arranged on the base around the rotary workbench and drive the rotary workbench to vertically upwards;

the electric rod is fixed at the driving end of the first motor;

The electric telescopic plate is arranged above the electric rod;

The transverse strip plate is connected to the inner wall of the electric expansion plate in a sliding way;

And two clamping plates, one of which is fixed below the electric expansion plate and the other of which is fixed on the transverse slat.

Further, the downward moving member includes:

the fixed arc plate is arranged on the inner wall of the clamping plate at one side;

the vertical plate is fixed below the fixed arc plate;

further, the downward moving member further includes:

And the rotating shaft is arranged on the outer side of the vertical plate.

Further, the downward moving member further includes:

The sealing upper cover is rotatably arranged at the outer side of the rotating shaft and is contacted with the inner side of the vertical plate;

The sealing lower cover is arranged outside the rotating shaft and matched with the sealing upper cover;

The storage tube is fixedly arranged at the bottom end of the vertical plate.

Further, the adsorbing member includes:

the electric rotating shaft is arranged at the outer side of the beam upright post, one end is provided with a direct-drive motor and is connected with the output end of the direct-drive motor;

The sealing lower cover is arranged below the sealing upper cover and can be matched with the sealing upper cover in a sealing way;

the first expansion plate is arranged outside the electric rotating shaft;

the placement seat is arranged on one side of the electric rotating shaft and is positioned below the first expansion plate;

The extension plate is arranged on the inner side of the placement seat;

The plurality of suction strips are fixedly arranged below the extension plate;

the locking part is arranged on the inner wall of the placement seat.

Further, the locking part includes:

the annular slat is arranged on the inner wall of the placement seat;

the inserting connection rod is arranged above the annular slat;

The elastic strip is movably arranged above the inserting connection rod and penetrates through the inner wall of the placement seat;

the lower surface of the placement seat is provided with a plurality of notches matched with the elastic strips so as to facilitate the insertion and positioning of the elastic strips;

a positioning lock hole is formed in one side of the placement seat;

the locking strip is fixedly arranged on one side of the placement seat and is matched with a positioning lock hole formed in the other side of the placement seat;

Further, the storage member includes:

the recovery block is fixedly arranged on the inner wall of the placement seat;

the second pipelines are symmetrically arranged at the outer sides of the recovery blocks;

the three-way valve is fixedly arranged above the second pipeline, and a control valve is arranged above the three-way valve;

the first pipeline is fixedly arranged on one side of the three-way valve;

The fan is arranged above the main shaft;

the air inlet pipe is arranged at the outer side of the storage pipe;

a through groove is formed between the placement seat and the recovery block.

Further, the air outlet member includes:

the vacuum bag is arranged at the inner side of the placement seat;

the spray heads are arranged outside the vacuum bag and can be matched with the extension plate.

Further, the driving member includes:

the main shaft is rotationally arranged at the center of the valve;

the bottom end of the main shaft is connected with a second motor and is connected with the driving end of the second motor;

the second expansion plate is fixedly arranged on the outer side of the main shaft.

The scheme of the invention at least comprises the following beneficial effects:

According to the drilling equipment for the large-caliber valve automatic indexing flange plate, through the cooperation of the first expansion plate and the placement seat and the cooperation of the expansion plate and the placement seat with the valve, the expansion plate is pushed out from the interior of the placement seat, so that the expansion plate extends to the upper surface of the valve, the expansion plate extends to the upper surface of the valve to absorb drilling fragments on the valve, and the cleaning effect of a valve hole is improved.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of an overall three-dimensional structure according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of an X-axis platform, Z-axis platform and valve assembly according to an embodiment of the present invention;

FIG. 3 is a perspective exploded view of a cross slat, electric lever and valve combination provided in an embodiment of the present invention;

FIG. 4 is a schematic diagram of a combined explosion of a rotary table and a cross slat of the present invention;

FIG. 5 is a schematic view of the combined structure of the clamping plate, the fixed arc plate and the cross bar plate of the invention;

FIG. 6 is an exploded view of the toggle plate and toggle plate combination of the present invention;

FIG. 7 is an enlarged schematic view of the partial structure of FIG. 6A according to the present invention;

FIG. 8 is an enlarged schematic view of a portion of the structure of FIG. 6 at D in accordance with the present invention;

FIG. 9 is a schematic view of the structure of the thin strips of tubing, vacuum bladder and seat of the present invention;

FIG. 10 is a schematic view of a strip structure of the toggle plate and the setting bed of the present invention;

FIG. 11 is an exploded schematic view of the combination of the vacuum bladder, ring plate and showerhead of the present invention;

FIG. 12 is a schematic diagram of a combined explosion of the nest and recovery block of the present invention;

FIG. 13 is an enlarged schematic view of a part of the structure of FIG. 12B according to the present invention;

FIG. 14 is a schematic view of the invention in combination with a rotating table.

In the figure, 1, a base, 11, an electric rod, 12, a horizontal bar plate, 13, an electric expansion plate, 15, a clamping plate, 16, a fixed arc plate, 17, a vertical plate, 18, a rotating shaft, 19, a sealing upper cover, 20, a sealing lower cover, 21, a storage tube, 3, a horizontal beam upright post, 30, a main shaft, 300, a second expansion plate, 301, an annular slat, 302, an inserting rod, 303, a locking bar, 304, an elastic bar, 311, an electric rotating shaft, 321, a first pipeline, 322, a second pipeline, 323, a three-way valve, 324, a fan, 325, an air inlet pipe, 31, a first expansion plate, 32, a recovery block, a placement seat, 34, an expansion plate, 35, an absorbing bar, 36, a vacuum bag, 38, a spray head, 4, an X-axis platform, 5, a Z-axis platform, 6, a drilling machine, 7, a rotary workbench, 8, a braking system and 9 and a valve.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 1 to 14, a drilling device for an automatic indexing flange plate of a large-caliber valve comprises a base 1 and a beam column 3 fixedly installed above the base 1, an X-axis platform 4 is arranged above the beam column 3, a Z-axis platform 5 is slidably arranged on one side of the X-axis platform 4, a drilling machine 6 is fixed on the Z-axis platform 5, a rotary workbench 7 driven by a servo motor is arranged above the base 1, a valve 9 is arranged above the rotary workbench 7, the rotary workbench 7 supports the valve 9 to rotate for indexing flange drilling, a brake system 8 is arranged outside the rotary workbench 7, and the drilling device further comprises:

the clamping part is arranged above the base 1 and is positioned outside the rotary workbench 7 so as to clamp the valve 9;

The clamping part comprises a clamping piece and a downward moving piece, the clamping piece is arranged above the valve 9 and connected with the base 1, the clamping piece is connected with the downward moving piece, and the downward moving piece is arranged on the inner wall of the clamping piece;

the chip removing part is arranged above the valve 9 and on the inner wall of the valve 9 to clean chips after drilling the valve 9;

the chip removing part comprises an adsorption piece and a storage piece, the adsorption piece is arranged above the valve 9, the universal piece is arranged on the inner wall of the valve 9, and the storage piece is connected with the adsorption piece;

the circulating piece is arranged outside the valve 9 and connected with the chip removing part to recover burrs;

The circulation piece includes air outlet piece and driving piece, and air outlet piece sets up in storage piece one side, and is connected with the driving piece, and the driving piece sets up in the air outlet piece outside.

When the valve 9 is required to be drilled, the embodiment of the invention is used, firstly, a low-speed and constant feeding setting mode is adopted through an operation numerical control system interface, a clamping piece is driven to rotate to the outer side of the valve 9 by electrifying, the valve 9 is placed above a rotary workbench 7, then the adsorption piece is stretched to the inner diameter of the valve 9 by electrifying, the valve 9 is supported and matched by the rotary workbench 7 in a rotating way, the inner diameter and the outer diameter of the valve 9 are clamped through the threaded transmission of the clamping piece, the valve 9 is ensured to be attached to the clamping piece, the optimal drilling position is corrected through an X-axis platform 4 and a Z-axis platform 5, the drilling machine 6 is driven downwards to sequentially drill the valve 9 in a stepped mode, and further the drilling finish machining treatment is completed;

After drilling, the surface of the valve 9, which is drilled, can be provided with a plurality of fragments, the fragments are easy to enter a machine to influence the accuracy of subsequent drilling, after the valve 9 is fixed by the clamping piece, the driving piece is started to generate outward telescopic force, the telescopic force extrudes the air outlet piece, the air outlet piece is deformed and then ejects air, the air pushes the absorbing piece to extend along the surface of the valve 9 from the inner side to the outer side, the fragments on the surface of the valve 9, which are drilled, and burrs in the drilling are absorbed, are reset to an initial position after absorption, at the moment, the receiving piece is started, the fragments and the burrs are blown off by wind force and are temporarily collected at one position, a negative pressure area is formed at the bottom of the wind force, and the fragments and the burrs collected at the high position are pumped to the bottom by the negative pressure for closed-loop storage.

The rotary workbench 7 mainly comprises a base, a rotary support bearing, a workbench surface, a worm gear reducer, a servo motor, a circular grating and the like, and is a full-closed loop control system, the repeated positioning accuracy is high, the rotary support bearing is of a single-row crossed roller type, the arrangement is compact, and the rotary workbench can bear axial force, overturning moment and larger radial force at the same time.

Because the table top of the rotary workbench 7 is large, the braking system 8 is added to ensure stable working conditions, the supporting system can be simply understood as a mechanical four-bar linkage capable of self-locking, and the air cylinder drives the connecting bar to give the upward supporting force to the rotary workbench 7, so that the machine is only used when the machine works, the working stability of the machine is improved, and the punching precision of a workpiece is ensured;

The brake system 8 is also simply understood to be a self-locking four-bar structure, a connecting bar is driven by a cylinder, and a brake pad contacts with the side surface of the workbench to assist the servo motor to brake, so that the load of the motor is reduced, the service life of the motor is prolonged, and stable braking is ensured;

The machine table adopts an air cylinder counterweight, the air cylinder is connected with the spindle unit, pressure is transmitted to the spindle unit through adjusting the pressure of the air cylinder, and the spindle unit is balanced with a force of a spindle ram under working conditions, so that the motor is protected, the air cylinder counterweight pressure is adjustable, failure is not easy to occur, and the machine tool can adapt to the characteristics of quick movement of the machine tool.

As shown in fig. 3 to 5, the clip includes:

The electric rods 11 are symmetrically arranged above the base 1 and surround the valve 9, and three first motors are symmetrically arranged on the base 1 around the rotary workbench 7 and drive the electric rods to vertically upwards;

The electric rod 11 is fixed at the driving end of the first motor;

An electric expansion plate 13 arranged above the electric rod 11;

the transverse slat 12 is connected to the inner wall of the electric expansion plate 13 in a sliding way;

The clamping plates 15 are two, one is fixed below the electric expansion plate 13, and the other is fixed on the transverse strip plate 12 inside the electric expansion plate 13, and the transverse strip plate 12 is the expansion part inside the electric expansion plate 13.

When the valve 9 works, as the valve 9 has various models, different heights and different inner and outer diameter sizes and has the condition of clamping discomfort, the embodiment of the invention is used, the first motor is driven to drive the electric rod 11 to rotate by clicking a button on the interface of the numerical control system, the electric rod 11 is linked with the electric expansion plate 13 to change the position, the electric expansion plate 13 moves from the inner side to the outer side, at the moment, a space is reserved in the middle of the valve 9, the valve 9 is placed on the rotary workbench 7, the electric expansion plate 13 is twisted back, the electric expansion plate 13 is driven to stretch the transverse slat 12 to a proper clamping position, the two clamping plates 15 are gradually closed by contracting the transverse slat 12, and the inner diameter and the outer diameter of the valve 9 are clamped so as to fix the valve 9 and prevent the vibration from affecting the processing precision;

When the height of the valve 9 needs to be adjusted, the electric rod 11 is operated, and the telescopic rod in the electric rod 11 is moved upwards to a height matched with the valve 9, so that the cross bar plate 12 is attached to the valve 9 downwards, and a certain gap is reserved between the valve 9 and the cross bar plate 12, so that the suction piece is not blocked from moving outwards normally;

as shown in fig. 5, the down-shift member includes:

A fixed arc plate 16 provided on an inner wall of the one side holding plate 15;

A vertical plate 17 fixed below the fixed arc plate 16;

a rotation shaft 18 provided outside the vertical plate 17;

a sealing upper cover 19 rotatably provided outside the rotation shaft 18 and contacting the inside of the vertical plate 17;

the storage tube 21 is fixedly arranged at the bottom end of the vertical plate 17;

The sealing lower cover 20 is arranged below the sealing upper cover 19 and can be in sealing fit with the sealing upper cover 19.

When the chips left on the surface of the drilling hole and the burrs left in the hole of the valve 9 are required to be adsorbed, the initial state of the adsorbing piece is positioned in the inner diameter of the valve 9, and extends outwards to clean the chips on the surface of the valve 9, the adsorbing piece contacts the fixed arc plate 16 on the path during cleaning and is extruded with one end of the fixed arc plate 16, the end part of the fixed arc plate 16 is arranged to be a downward cambered surface, the adsorbing piece moves downwards along the cambered surface of the fixed arc plate 16, the movement direction is changed, and the adsorption of the burrs in the hole is convenient;

After drilling is completed, in order to enhance the collection effect, according to the preferred embodiment of the invention, the adsorption piece is blocked after stretching movement and contact with the fixed arc plate 16, the sealing upper cover 19 is pressed downwards, the sealing upper cover 19 rotates along the outer side of the rotating shaft 18 to approach the direction of the storage tube 21, the sealing upper cover 19 is in butt joint with the storage tube 21, and a closed environment is formed, so that the adsorption piece has the functions of collection and sealing, and the effect is stronger when the adsorption of burrs is facilitated.

As shown in fig. 9, the adsorbing member includes:

The electric rotating shaft 311 is arranged outside the beam upright post 3, one end of the electric rotating shaft is provided with a direct drive motor, and the electric rotating shaft is connected with the output end of the direct drive motor;

a first expansion plate 31 disposed outside the electric rotating shaft 311;

The placement seat 33 is arranged on one side of the electric rotating shaft 311 and is positioned below the first expansion plate 31;

An extension plate 34 disposed inside the seating seat 33;

a plurality of suction bars 35 fixedly installed below the extension plate 34;

The locking part is arranged on the inner wall of the placement seat 33 so as to adjust to the proper inner diameter of the valve 9;

When the suction device is required to be placed into the valve 9 to suck chips, the preferred embodiment of the invention is used, the first expansion plate 31 is linked with the placement seat 33 to be stretched in the inner diameter of the valve 9, the driving device rotates after working, the air outlet device is extruded to work when rotating, the air outlet device is extruded to spray air, the air gradually pushes the stretching plate 34, the stretching plate 34 is pushed out from the inside of the placement seat 33, the stretching plate 34 forms a trend of stretching, the stretching plate 34 moves to the upper surface of the valve 9, the suction strip 35 gradually absorbs burrs on the stretching plate, so that the device has a rapid suction effect, and the cleaning effect on the valve 9 is improved.

As shown in fig. 9, the storage member includes:

the recovery block 32 is fixedly arranged on the inner wall of the placement seat 33;

the second pipeline 322 is provided with three pipelines and is symmetrically arranged outside the recovery block 32;

The three-way valve 323 is fixedly arranged above the second pipeline 322, and a control valve is arranged above the three-way valve 323;

a first pipeline 321 fixedly installed at one side of the three-way valve 323;

a blower 324 disposed above the main shaft 30;

the intake pipe 325 is provided outside the storage pipe 21.

A through slot is provided between the mounting seat 33 and the recovery block 32 to collect burrs in the recovery block 32.

In operation, when it is desired to recover the burrs adsorbed by the extension plate 34, using the preferred embodiment of the present invention, the extension plate 34 adsorbs the burrs to the inside of the seat 33 and enters the recovery block 32 through the through slot of the seat 33, and the recovery block 32 receives the chips.

As shown in fig. 13, the locking part includes:

an annular slat 301 disposed on an inner wall of the seat 33 and below the seat 33;

A plug rod 302 disposed above the annular slat 301;

an elastic strip 304 movably mounted above the insertion rod 302;

the lower surface of the placement seat 33 is provided with a plurality of notches matched with the elastic strips 304 so as to facilitate the insertion of the elastic strips 304 for positioning, and one side of the placement seat 33 is provided with a positioning lock hole;

the locking strip 303 is fixedly arranged on one side of the placement seat 33 and is matched with a positioning lock hole formed on the other side of the placement seat 33;

Before the valve 9 is subjected to burr adsorption during operation, the inner diameter of the valve 9 needs to be adjusted because of different specifications, the annular slat 301 is pulled to move to the other side by using a tool, the annular slat 301 is linked with the inserting rod 302 to gradually slide, the inserting rod 302 slides to the inner wall of the positioning seat 33 at the other side, at the moment, the elastic strip 304 is propped against the inner wall of the positioning seat 33 to move, when the elastic strip 304 meets a proper position, the elastic strip 304 loses the propping force to be inserted into a notch on the positioning seat 33, meanwhile, the annular slat 301 can be linked with the positioning seat 33 at one side to be butted to the other side, and when the two positioning seats 33 are butted together, the locking strip 303 is inserted into a positioning hole on the positioning seat 33 at the other side to complete the adjustment of universality, so that the valve 9 is more suitable.

As shown in fig. 10 and 11, the air outlet member includes:

a vacuum bag 36 provided inside the seat 33;

a plurality of spray heads 38 mounted outside the vacuum bag 36 and engageable with the extension plate 34;

when the device is in use, when the expansion plate 34 needs to be pushed, the driving piece is in contact with the vacuum bag 36 when rotating, the vacuum bag 36 is impacted to deform, and gas in the vacuum bag 36 is sprayed to the side edge of the expansion plate 34 through the spray head 38, so that the expansion plate 34 has an extending function, and the surface of the valve 9 is conveniently adsorbed.

As shown in fig. 10, the driving member includes:

a main shaft 30 rotatably disposed at the center of the valve 9;

The bottom end of the main shaft 30 is connected with a second motor and is connected with the driving end of the second motor;

the second expansion plate 300 is fixedly installed at the outer side of the main shaft 30.

When the blowing device is in operation, when blowing treatment is needed, the second motor is driven, the main shaft 30 is driven to move after the second motor rotates, the main shaft 30 rotates while driving the second expansion plate 300 to stretch, the second expansion plate 300 stretches and then contacts with the vacuum bag 36, the vacuum bag 36 is extruded to deform and the internal gas is sprayed out to push the expansion plate 34 out of the installation seat 33, the expansion plate 34 extends to the upper surface of the valve 9 and moves, and the expansion plate is extended to absorb scraps on the upper surface of the valve 9 through the suction strip 35, so that the expansion plate 34 and the suction strip 35 are driven in time to absorb scraps and burrs in holes.

Working principle:

Firstly, the valve 9 is placed on the rotary workbench 7, the height of the clamping piece is adjusted through the electric rod 11, and the inner diameter and the outer diameter of the valve 9 are clamped through the transverse slat 12 to determine stability;

the Z-axis platform 5 on the beam upright post 3 drives the drilling machine 6 to move to a preset drilling position;

the rotary worktable 7 rotates the valve 9 according to the indexing requirement, the drilling machine 6 drills layers by layers in a low-speed constant feeding mode, small holes are drilled first, and large holes formed around the holes are drilled again, so that finish machining is completed.

When the blowing treatment is needed, the second motor is driven, the spindle 30 is driven to move after the second motor rotates, the spindle 30 rotates while driving the second expansion plate 300 to extend, the second expansion plate 300 is contacted with the vacuum bag 36 after extending, the vacuum bag 36 is extruded to deform internal gas to spray out the expansion plate 34 from the inside of the placement seat 33, the expansion plate 34 extends to the upper surface of the valve 9 to move, and the suction strip 35 is used for sucking scraps on the upper surface of the valve 9 while extending, so that the expansion plate 34 and the suction strip 35 are driven in time to suck scraps and burrs in holes;

And the burr recovery, namely after the scraps on the upper surface of the valve 9 are adsorbed by the suction strip 35, the second expansion plate 300 is gradually retracted, at the moment, the expansion plate 34 moves back and returns to the inside of the placement seat 33, the placement seat 33 is communicated with the recovery block 32, at the moment, the control valve opening of the three-way valve 323 is opened, the second pipeline 322 and the first pipeline 321 are closed, the air inlet pipe 325 is opened, the fan 324 is restarted to work, the upper part of the fan 324 is an air outlet area, the fan 324 blows wind force upwards, the wind force blows to the expansion plate 34, the vibration of the expansion plate 34 shakes the burrs and scraps on the suction strip 35 into the inside of the recovery block 32, the bottom of the fan 324 forms a negative pressure area, the negative pressure enters the storage pipe 21 through the air inlet pipe 325, the negative pressure is generated in the storage pipe 21, the negative pressure pumps the scraps and the burrs in the inside of the recovery block 32 into the storage pipe 21 through the second pipeline 322 and the first pipeline 321, thereby forming a closed loop, so as to complete the centralized processing, the closed loop control, the full-loop system of the rotary workbench 7 ensures the indexing precision, and the brake system 8 reduces the load fluctuation.

The cleaning in the hole, that is, the suction strip 35 sucks the scraps on the upper surface of the valve 9 and sucks burrs in the drilled hole, and the sealing upper cover 19 is closed to form a sealing space, so that the negative pressure effect is improved.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an automatic graduation ring flange drilling equipment of heavy-calibre valve, includes base (1) and fixed mounting crossbeam stand (3) in base (1) top, crossbeam stand (3) top is provided with X axle platform (4), one side of X axle platform (4) slides and is provided with Z axle platform (5), be fixed with drilling machine (6) on Z axle platform (5), base (1) top is provided with by servo motor drive swivel work head (7), swivel work head (7) top is provided with valve (9), swivel work head (7) support valve (9) rotatory in order to carry out the graduation flange drilling, swivel work head (7) outside is provided with braking system (8), its characterized in that still includes:

The clamping part is arranged above the base (1) and is positioned outside the rotary workbench (7) so as to clamp the valve (9);

the clamping part comprises a clamping piece and a downward moving piece, the clamping piece is arranged above the valve (9) and is connected with the base (1), the clamping piece is connected with the downward moving piece, and the downward moving piece is arranged on the inner wall of the clamping piece;

the chip removing part is arranged above the valve (9) and on the inner wall of the valve (9) so as to clean chips after the valve (9) is drilled;

the chip removing part comprises an absorption part and a storage part, the absorption part is arranged above the valve (9), the general part is arranged on the inner wall of the valve (9), and the storage part is connected with the absorption part;

the circulating piece is arranged at the outer side of the valve (9) and is connected with the chip removing part so as to recover burrs;

The circulating piece comprises an air outlet piece and a driving piece, wherein the air outlet piece is arranged on one side of the storage piece and is connected with the driving piece, and the driving piece is arranged on the outer side of the air outlet piece;

The adsorbing member includes:

The electric rotating shaft (311) is arranged at the outer side of the cross beam upright post (3), one end of the electric rotating shaft is provided with a direct-drive motor, and the electric rotating shaft is connected with the output end of the direct-drive motor;

The first expansion plate (31) is arranged outside the electric rotating shaft (311);

The placement seat (33) is arranged on one side of the electric rotating shaft (311) and is positioned below the first expansion plate (31);

An extension plate (34) arranged on the inner side of the placement seat (33);

a plurality of suction strips (35) fixedly arranged below the extension plate (34);

The locking part is arranged on the inner wall of the placement seat (33);

the storage member includes:

the recovery block (32) is fixedly arranged on the inner wall of the placement seat (33);

The second pipelines (322) are symmetrically arranged outside the recovery block (32);

The three-way valve (323) is fixedly arranged above the second pipeline (322), and a control valve is arranged above the three-way valve;

The first pipeline (321) is fixedly arranged on one side of the three-way valve (323);

a fan (324) arranged above the main shaft (30);

An intake pipe (325) provided outside the storage pipe (21);

a through groove is formed between the placement seat (33) and the recovery block (32).

2. The apparatus for drilling a large diameter valve automatic indexing flange plate according to claim 1, wherein the clamping member comprises:

The electric rods (11) are symmetrically arranged above the base (1) and surround the valve (9), and three first motors are symmetrically arranged on the base (1) around the rotary workbench (7) and drive the motors to vertically upwards;

The electric rod (11) is fixed at the driving end of the first motor;

An electric expansion plate (13) arranged above the electric rod (11);

The transverse strip plate (12) is connected to the inner wall of the electric expansion plate (13) in a sliding manner;

two clamping plates (15), one of which is fixed below the electric expansion plate (13) and the other of which is fixed on the transverse slat (12).

3. The apparatus for automatically indexing a flange plate for a large diameter valve according to claim 2, wherein the downward moving member comprises:

a fixed arc plate (16) arranged on the inner wall of the clamping plate (15) at one side;

And the vertical plate (17) is fixed below the fixed arc plate (16).

4. The apparatus for automatically indexing a flange plate for a large diameter valve according to claim 3, wherein the lower moving member further comprises:

and a rotation shaft (18) provided outside the vertical plate (17).

5. The apparatus for automatically indexing a flange drilling assembly for a large diameter valve according to claim 4, wherein the lower member further comprises:

a sealing upper cover (19) rotatably arranged outside the rotating shaft (18) and contacted with the inner side of the vertical plate (17);

the sealing lower cover (20) is arranged below the sealing upper cover (19) and can be in sealing fit with the sealing upper cover (19);

The storage pipe (21) is fixedly arranged at the bottom end of the vertical plate (17).

6. The automatic indexing flange drilling assembly according to claim 1, wherein the locking member comprises:

An annular slat (301) provided on the inner wall of the mount (33);

a plug rod (302) arranged above the annular slat (301);

The elastic strip (304) is movably arranged above the inserting connection rod (302) and penetrates through the inner wall of the placement seat (33);

the lower surface of the placement seat (33) is provided with a plurality of notches matched with the elastic strips (304) so as to facilitate the insertion and positioning of the elastic strips (304);

A positioning lock hole is formed in one side of the placement seat (33);

the locking strip (303) is fixedly arranged on one side of the placement seat (33) and is matched with a positioning lock hole formed in the other side of the placement seat (33).

7. The apparatus for drilling a large diameter valve automatic indexing flange plate according to claim 1, wherein the air outlet member comprises:

a vacuum bag (36) arranged on the inner side of the placement seat (33);

a plurality of spray heads (38) are arranged outside the vacuum bag (36) and can be matched with the extension plate (34).

8. The apparatus for automatically indexing a flange plate for a large diameter valve according to claim 1, wherein the driving member comprises:

the main shaft (30) is rotatably arranged in the center of the valve (9);

The bottom end of the main shaft (30) is connected with a second motor and is connected with the driving end of the second motor;

The second expansion plate (300) is fixedly arranged on the outer side of the main shaft (30).