Large-diameter valve automatic indexing flange plate drilling equipment

Abstract

The invention relates to the technical field of valve drilling, and discloses large-diameter valve automatic indexing flange plate drilling equipment which comprises a base and a cross beam stand column fixedly installed above the base, an X-axis platform is arranged above the cross beam stand column, a Z-axis platform is arranged on one side of the X-axis platform in a sliding mode, a drilling machine is fixed to the Z-axis platform, and the drilling machine is fixed to the base. A rotary working table driven by a servo motor is arranged above the base, a valve is arranged above the rotary working table, the rotary working table supports the valve to rotate so as to conduct indexing flange drilling, a brake system is arranged on the outer side of the rotary working table, and the clamping and fixing part is arranged above the base. According to the device, the first telescopic plate is matched with the placement seat, and then the extension plate and the placement seat are matched with the valve, so that the extension plate is pushed out from the interior of the placement seat, the extension plate extends to the upper surface of the valve to adsorb drilling chips on the valve, and the cleaning effect of a valve hole is improved.

Description

Technical Field

[0001] The invention relates to the technical field of valve drilling, in particular to automatic indexing flange drilling equipment for large-caliber valves. Background Art

[0002] The valve drilling processing of large-diameter valves has high requirements for precision, efficiency and degree of automation. Traditional manual or semi-automatic equipment has problems such as large positioning error and low production efficiency. Automatic indexing flange drilling equipment integrates mechanical, electrical, CNC systems and intelligent indexing technology to achieve high-precision drilling processing of large-diameter valves. It is widely used in valve manufacturing in the fields of petrochemical, electric power, metallurgy, etc.

[0003] During the drilling process of large-diameter valves, certain defects usually occur. For example, large-diameter valves have a large weight, and there will be many burrs on the valve surface during drilling, and even burrs will remain in the hole. It is difficult to deal with them in time through manual intervention, and it is easy to vibrate when the clamping is not stable, resulting in rough hole walls, poor hole diameters or broken tools, which will pose a hidden danger to the valve stability and processing accuracy. Summary of the Invention

[0004] The present invention provides an automatic indexing flange drilling device for large-diameter valves. The device uses the clamping force applied to the inner and outer diameters of the valve to reduce vibration during drilling, and then timely adjusts the required height of the valve according to the clamping force. At the same time, it triggers the adsorption part to adsorb burrs on the valve surface, thereby improving stability and avoiding secondary pollution, thereby promoting fine processing.

[0005] In order to solve the above technical problems, the technical solutions of the present invention are as follows: In a first aspect, an automatic indexing flange drilling device for large-diameter valves includes a base and a beam column fixedly mounted above the base, an X-axis platform is provided above the beam column, a Z-axis platform is slidably provided on one side of the X-axis platform, a drilling machine is fixed on the Z-axis platform, a rotary table driven by a servo motor is provided above the base, a valve is provided above the rotary table, the rotary table supports the valve to rotate for indexing flange drilling, a brake system is provided on the outside of the rotary table, and further includes: The clamping portion is arranged above the base and located outside the rotary table to clamp the valve; The clamping part includes a clamping member and a downward moving member, wherein the clamping member is arranged above the valve and connected to the base, the clamping member is connected to the downward moving member, and the downward moving member is arranged on the inner wall of the clamping member; The chip removal part is set above the valve and on the inner wall of the valve to clean the debris after the valve is drilled; The chip removal part includes an adsorption part and a receiving part, the adsorption part is arranged above the valve, the universal part is arranged on the inner wall of the valve, and the receiving part is connected to the adsorption part; A circulation part is arranged outside the valve and connected to the chip removal part to recover burrs; The circulation member includes an air outlet member and a driving member. The air outlet member is arranged on one side of the storage member and is connected to the driving member. The driving member is arranged outside the air outlet member.

[0006] Furthermore, the clamping member includes: There are three electric rods, which are symmetrically arranged above the base and surround the valve. Three first motors are symmetrically arranged on the base around the rotating workbench and drive vertically upward; an electric rod fixed to the driving end of the first motor; An electric telescopic plate is arranged above the electric pole; A horizontal strip plate is slidably connected to the inner wall of the electric telescopic plate; There are two clamping plates, one is fixed under the electric telescopic plate, and the other is fixed on the horizontal plate.

[0007] Furthermore, the downward moving member includes: A fixed arc plate is arranged on the inner wall of the clamping plate on one side; A vertical plate, fixed below the fixed arc plate; Furthermore, the downward moving member further includes: The rotating shaft is arranged on the outer side of the vertical plate.

[0008] Furthermore, the downward moving member further includes: The sealing upper cover is rotatably arranged on the outside of the rotating shaft and contacts the inner side of the vertical plate; The sealing lower cover is arranged outside the rotating shaft and matches the sealing upper cover; The storage tube is fixedly installed at the bottom end of the vertical plate.

[0009] Furthermore, the adsorption element includes: The electric shaft is arranged outside the beam column, and a direct drive motor is arranged at one end and connected to the output end of the direct drive motor; The sealing lower cover is arranged below the sealing upper cover and can be sealed with the sealing upper cover; A first telescopic plate is arranged outside the electric shaft; A placement seat is provided on one side of the electric rotating shaft and is located below the first telescopic plate; An extension plate is arranged on the inner side of the placement seat; There are multiple suction strips fixedly installed under the extension plate; The locking part is arranged on the inner wall of the placement seat.

[0010] Furthermore, the locking part includes: An annular strip plate is arranged on the inner wall of the placement seat; A plug-in rod is arranged above the annular strip; The elastic strip is movably mounted above the plug rod and passes through the inner wall of the placement seat; The lower surface of the placement seat is provided with a plurality of notches that cooperate with the elastic strips to facilitate the insertion and positioning of the elastic strips; A positioning lock hole is provided on one side of the placement seat; The lock bar is fixedly installed on one side of the placement seat and cooperates with the positioning lock hole opened on the other side of the placement seat; Furthermore, the storage unit includes: The recovery block is fixedly mounted on the inner wall of the placement seat; Pipeline 2, having three, symmetrically arranged outside the recovery block; A three-way valve is fixedly installed above pipe 2 and a control valve is provided above it; Pipeline 1, fixedly installed on one side of the three-way valve; The fan is arranged above the main shaft; An air intake pipe is arranged on the outside of the storage pipe; A through slot is provided between the placement seat and the recovery block.

[0011] Furthermore, the gas outlet member includes: A vacuum bag is arranged inside the placement seat; There are multiple nozzles, which are installed outside the vacuum bag and can be matched with the extension plate.

[0012] Furthermore, the driving member includes: The main shaft is rotatably set in the center of the valve; The bottom end of the main shaft is connected to the second motor and is connected to the driving end of the second motor; The second telescopic plate is fixedly mounted on the outside of the main shaft.

[0013] The above solution of the present invention includes at least the following beneficial effects: The present invention describes an automatic indexing flange drilling device for large-diameter valves. Through the cooperation of the first telescopic plate and the mounting seat, and then through the cooperation of the extension plate, the mounting seat and the valve, the extension plate is pushed out from the inside of the mounting seat, so that the extension plate extends to the upper surface of the valve. The extension plate extends to the upper surface of the valve to absorb the drilling debris on the valve, thereby improving the cleaning effect of the valve hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 A schematic diagram of the overall three-dimensional structure provided by an embodiment of the present invention; Figure 2A schematic diagram of the three-dimensional structure of the X-axis platform, Z-axis platform and valve assembly provided in an embodiment of the present invention; Figure 3 A three-dimensional exploded view of a horizontal strip plate, an electric rod, and a valve assembly provided in an embodiment of the present invention; Figure 4 This is an exploded schematic diagram of the combination of the rotary worktable and the horizontal strip plate of the present invention; Figure 5 This is a schematic diagram of the combined structure of the clamping plate, fixed arc plate and horizontal strip plate of the present invention; Figure 6 It is a schematic diagram of the explosion of the toggle plate and the toggle plate of the present invention; Figure 7 This invention Figure 6 A magnified schematic diagram of the local structure at center A; Figure 8 This invention Figure 6 A magnified schematic diagram of the local structure at point D in the middle; Figure 9 It is a schematic diagram of the thin strip structure of the pipeline, vacuum bag and placement seat of the present invention; Figure 10 It is a schematic diagram of the thin strip structure of the toggle plate and the placement seat of the present invention; Figure 11 This is an exploded schematic diagram of the combined structure of the vacuum bag, the ring plate and the nozzle of the present invention; Figure 12 This is an exploded schematic diagram of the assembly of the placement seat and the recovery block of the present invention; Figure 13 This invention Figure 12 A magnified schematic diagram of the local structure at point B in the middle; Figure 14 It is a schematic diagram of the cooperation between the base and the rotary workbench of the present invention.

[0016] In the figure: 1. base; 11. electric rod; 12. horizontal strip; 13. electric telescopic plate; 15. clamping plate; 16. fixed arc plate; 17. vertical plate; 18. rotating shaft; 19. sealed upper cover; 20. sealed lower cover; 21. storage tube; 3. crossbeam column; 30. main shaft; 300. second telescopic plate; 301. annular strip; 302. plug-in rod; 303. locking strip; 304. elastic strip; 311. electric rotating shaft; 321. pipeline 1; 322. pipeline 2; 323. three-way valve; 324. fan; 325. air inlet pipe; 31. first telescopic plate; 32. recovery block; 33. placement seat; 34. extension plate; 35. suction strip; 36. vacuum bag; 38. nozzle; 4. X-axis platform; 5. Z-axis platform; 6. drilling machine; 7. rotary table; 8. brake system; 9. valve. DETAILED DESCRIPTION

[0017] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0018] like Figures 1 to 14 As shown, an automatic indexing flange drilling device for large-caliber valves includes a base 1 and a beam column 3 fixedly mounted above the base 1. An X-axis platform 4 is provided above the beam column 3. A Z-axis platform 5 is slidably provided on one side of the X-axis platform 4. A drilling machine 6 is fixed on the Z-axis platform 5. A rotary table 7 driven by a servo motor is provided above the base 1. A valve 9 is provided above the rotary table 7. The rotary table 7 supports the valve 9 for rotation to perform indexing flange drilling. A brake system 8 is provided on the outside of the rotary table 7. The device also includes: The clamping portion is provided above the base 1 and located outside the rotary table 7 to clamp the valve 9; The clamping part includes a clamping member and a downward moving member. The clamping member is arranged above the valve 9 and connected to the base 1. The clamping member is connected to the downward moving member, and the downward moving member is arranged on the inner wall of the clamping member. A chip removal part is provided above the valve 9 and on the inner wall of the valve 9 to clean the chips left after the valve 9 is drilled; The chip removal part includes an adsorption part and a receiving part. The adsorption part is arranged above the valve 9, the universal part is arranged on the inner wall of the valve 9, and the receiving part is connected to the adsorption part. The circulation part is arranged outside the valve 9 and is connected to the chip removal part to recover the burrs; The circulation member comprises an air outlet member and a driving member. The air outlet member is arranged on one side of the storage member and is connected to the driving member. The driving member is arranged outside the air outlet member.

[0019] During operation, when it is necessary to drill a hole in the valve 9, the embodiment of the present invention is used. First, the low-speed, constant-feed setting mode is adopted by operating the numerical control system interface, and the power is applied to drive the clamping member to rotate to the outside of the valve 9. The valve 9 is placed on the rotary table 7. Then, the power is applied to extend the adsorption member to the inner diameter of the valve 9. The rotary table 7 supports and rotates the valve 9. The inner and outer diameters of the valve 9 are clamped by the threaded transmission of the clamping member. After ensuring that the valve 9 fits the clamping member, the optimal drilling position is corrected by the X-axis platform 4 and the Z-axis platform 5. The drilling machine 6 is driven downward to perform step-by-step drilling on the valve 9 in sequence, thereby completing the drilling finishing process. After drilling, there will be a lot of debris on the drilled surface of the valve 9, which can easily enter the machine and affect the accuracy of subsequent drilling. Using the embodiment of the present invention, after the clamping part fixes the valve 9, the driving part is started to generate an outward telescopic force. The telescopic force squeezes the air outlet part, and the air outlet part ejects gas after deformation. The gas pushes the adsorption part to extend from the inside to the outside along the surface of the valve 9, and adsorbs the surface debris of the drilled hole of the valve 9 and the burrs in the drilled hole; after adsorption, it resets to the initial position, and at this time the storage part is started, and the debris and burrs are blown away by wind power and temporarily collected in one place, and a negative pressure area is formed at the bottom of the wind power, and the debris and burrs collected at a high place are drawn to the bottom by negative pressure for closed-loop storage.

[0020] It should be noted that the rotary worktable 7 is mainly composed of: a base, a slewing support bearing, a work table, a worm gear reducer, a servo motor, a circular grating, etc., which form a fully closed-loop control system with high repeatability and positioning accuracy. The slewing support bearing is a single-row cross roller type with a compact arrangement, which can simultaneously withstand axial force, overturning torque and large radial force.

[0021] Because the rotary table 7 has a large surface, a brake system 8 is added to ensure stable working conditions. The support system can be simply understood as a self-locking mechanical four-bar linkage. The cylinder drives the connecting rod to give the rotary table 7 an upward support force. It is only used when the machine is working, increasing the stability of the machine and ensuring the drilling accuracy of the workpiece. The brake system 8 can also be simply understood as a self-locking four-link structure. The connecting rod is driven by the cylinder, and the brake pad contacts the side surface of the workbench to assist the servo motor in braking, reducing the motor load, increasing the motor life, and ensuring stable braking. A counterweight system is set on the outside. The counterweight system includes the movement of the machine tool spindle unit, which is transmitted by a ball screw, and the rotational motion of the motor is converted into linear motion. The motor and ball screw load the spindle unit, and only half of it bears gravity. To prevent such a load situation from causing unstable movement of the spindle unit, thereby causing serious consequences such as errors in machining accuracy, and the motor and screw are also prone to accelerated damage due to excessive load. Therefore, a counterweight structure is added to the Z-axis design; this machine uses a cylinder counterweight, which is connected to the spindle unit. By adjusting the pressure of the cylinder, the pressure is transferred to the spindle unit, giving the spindle unit an upward force to achieve a force balance with the spindle slide under working conditions, thereby protecting the motor. The cylinder counterweight pressure is adjustable, not prone to failure, and can adapt to the characteristics of rapid movement of the machine tool.

[0022] like Figures 3 to 5 As shown, the clamping member includes: There are three electric rods 11, which are symmetrically arranged above the base 1 and surround the valve 9. Three first motors are symmetrically arranged on the base 1 around the rotating workbench 7 and are driven vertically upward; The electric rod 11 is fixed to the driving end of the first motor; The electric telescopic plate 13 is arranged above the electric rod 11; The horizontal strip plate 12 is slidably connected to the inner wall of the electric telescopic plate 13; There are two clamping plates 15 , one fixed below the electric telescopic plate 13 , and the other fixed on the horizontal strip plate 12 inside the electric telescopic plate 13 ; it should be noted that the horizontal strip plate 12 is the telescopic part inside the electric telescopic plate 13 .

[0023] During operation, since the valve 9 has various models with different heights and inner and outer diameters, there is a situation where the clamping is not compatible. The embodiment of the present invention is used: by clicking the button on the CNC system interface, the first motor is driven to drive the electric rod 11 to rotate, and the electric rod 11 is linked to the electric telescopic plate 13 to change its position. The electric telescopic plate 13 moves from the inside to the outside. At this time, space is reserved in the middle of the valve 9, and the valve 9 is placed on the rotary workbench 7. The electric telescopic plate 13 is then twisted back and the electric telescopic plate 13 is driven to extend the horizontal plate 12 to a suitable clamping position. By contracting the horizontal plate 12, the two clamping plates 15 are gradually brought closer, and the inner and outer diameters of the valve 9 are clamped to fix the valve 9 and prevent vibration from affecting the processing accuracy. When the height of the valve 9 needs to be adjusted, the electric rod 11 is operated and the telescopic rod inside the electric rod 11 is moved upward to a height suitable for the valve 9; so that the horizontal strip 12 is moved downward to fit the valve 9; it should be noted that a certain gap is reserved between the valve 9 and the horizontal strip 12 so as not to hinder the normal outward extension movement of the adsorption member; like Figure 5 As shown, the lower moving part includes: A fixed arc plate 16 is provided on the inner wall of the clamping plate 15 on one side; The vertical plate 17 is fixed below the fixed arc plate 16; The rotating shaft 18 is arranged on the outside of the vertical plate 17; The sealing upper cover 19 is rotatably arranged on the outside of the rotating shaft 18 and contacts the inner side of the vertical plate 17; The storage tube 21 is fixedly mounted on the bottom end of the vertical plate 17; The sealing lower cover 20 is disposed below the sealing upper cover 19 and can be sealed with the sealing upper cover 19 .

[0024] When it is necessary to adsorb the debris left on the surface of the valve 9 and the burrs left in the hole due to drilling, the embodiment of the present invention is used. The adsorption member is initially located within the inner diameter of the valve 9 and extends outward to clean the debris on the surface of the valve 9. During cleaning, it contacts the fixed arc plate 16 on the path and is squeezed by one end of the fixed arc plate 16. The end of the fixed arc plate 16 is set to a downward arc surface. The adsorption member moves downward along the arc surface of the fixed arc plate 16. After changing the direction of movement, it is convenient to adsorb the burrs in the hole. It should be noted that the height of the arc surface of the fixed arc plate 16 determines the width of the surface of the valve 9 adsorbed by the adsorption member, and the arc surface of the fixed arc plate 16 is set to a height adapted to the width of the surface of the valve 9. After the drilling process is completed, in order to improve the collection effect, a preferred embodiment of the present invention is used. The adsorption component extends and contacts the fixed arc plate 16 and is blocked, squeezing the sealing upper cover 19 downward. The sealing upper cover 19 rotates along the outer side of the rotating shaft 18 toward the storage tube 21, and is docked with the storage tube 21 through the sealing upper cover 19, forming a closed environment, thereby having the functions of collection and sealing, which is conducive to a stronger effect when adsorbing burrs.

[0025] like Figure 9 As shown, the adsorption part includes: The electric shaft 311 is arranged outside the beam column 3, and a direct drive motor is provided at one end and is connected to the output end of the direct drive motor; The first telescopic plate 31 is arranged outside the electric shaft 311; The mounting seat 33 is provided on one side of the electric rotating shaft 311 and is located below the first telescopic plate 31; The extension plate 34 is arranged on the inner side of the placement seat 33; Suction strips 35 , of which there are a plurality, are fixedly mounted below the extension plate 34 ; The locking part is arranged on the inner wall of the seating seat 33 to adjust to the appropriate inner diameter of the valve 9; During operation, when it is necessary to place the adsorption part into the valve 9 to adsorb debris, a preferred embodiment of the present invention is used. First, the first telescopic plate 31 is linked with the mounting seat 33 to be extended into the inner diameter of the valve 9. After the driving part works, it rotates. During rotation, the air outlet part is squeezed to work. The air outlet part sprays gas due to being squeezed. The gas gradually pushes the extension plate 34. The extension plate 34 is pushed out from the inside of the mounting seat 33. The extension plate 34 forms an extension trend. The extension plate 34 moves to the upper surface of the valve 9, and the suction strip 35 gradually adsorbs the burrs on it, so that the equipment has a rapid adsorption effect, thereby improving the cleaning effect on the valve 9. It should be noted that the interior of the extension plate 34 is a cavity, and a reset spring is arranged between the extension plate 34 and the mounting seat 33.

[0026] like Figure 9 As shown, the storage unit includes: The recovery block 32 is fixedly mounted on the inner wall of the placement seat 33; The second pipe 322 has three pipes and is symmetrically arranged outside the recovery block 32; The three-way valve 323 is fixedly installed above the second pipe 322 and has a control valve on it; Pipe 1 321 is fixedly installed on one side of the three-way valve 323; The fan 324 is arranged above the main shaft 30; The air intake pipe 325 is provided outside the storage pipe 21 .

[0027] A through slot is defined between the seating seat 33 and the recovery block 32 to collect the burrs in the recovery block 32 .

[0028] During operation, when the burrs adsorbed by the extension plate 34 need to be recovered, the preferred embodiment of the present invention is used, and the extension plate 34 adsorbs the burrs to the inside of the placement seat 33, and enters the recovery block 32 through the through groove of the placement seat 33, and the recovery block 32 collects the debris.

[0029] like Figure 13 As shown, the locking parts include: The annular strip plate 301 is provided on the inner wall of the placement seat 33 and is located below the placement seat 33; The plug rod 302 is arranged above the annular strip 301; The elastic strip 304 is movably mounted above the plug rod 302; The lower surface of the placement seat 33 is provided with a plurality of notches that cooperate with the elastic strip 304 to facilitate the insertion of the elastic strip 304 for positioning; a positioning lock hole is provided on one side of the placement seat 33; The locking bar 303 is fixedly mounted on one side of the mounting seat 33 and cooperates with the positioning lock hole provided on the other side of the mounting seat 33; When the cam 310 is in the closed position, the spring 304 is in the closed position, and the spring 304 is in the closed position, so that the cam 310 is in the open position and the spring 304 is in the closed position.

[0030] like Figure 10 、 Figure 11 As shown, the gas outlet includes: The vacuum bag 36 is arranged inside the placement seat 33; The nozzle 38, of which there are a plurality, is mounted outside the vacuum bag 36 and can cooperate with the extension plate 34; During operation, when the extension plate 34 needs to be pushed, the embodiment of the present invention is used. When the driving member rotates, it contacts the vacuum bag 36, and the vacuum bag 36 is deformed by the impact. The gas inside the vacuum bag 36 is ejected to the side of the extension plate 34 through the nozzle 38, so that the extension plate 34 has an extension function, thereby facilitating the adsorption of the valve 9 surface.

[0031] like Figure 10 As shown, the driving parts include: The main shaft 30 is rotatably arranged at the center of the valve 9; The bottom end of the main shaft 30 is connected to the second motor and is connected to the driving end of the second motor; The second telescopic plate 300 is fixedly mounted on the outside of the main shaft 30 .

[0032] During operation, when air blowing is required, the second motor is driven. After the second motor rotates, it drives the main shaft 30 to move. While the main shaft 30 rotates, it drives the second telescopic plate 300 to extend. After the second telescopic plate 300 extends, it contacts the vacuum bag 36. The vacuum bag 36 is squeezed and deformed, and the internal gas is ejected to push the extension plate 34 out from the inside of the placement seat 33. The extension plate 34 extends to move toward the upper surface of the valve 9, and while extending, it absorbs debris on the upper surface of the valve 9 through the suction strip 35, so as to facilitate timely driving of the extension plate 34 and the suction strip 35 to absorb debris and burrs in the hole.

[0033] Working principle: First, place the valve 9 on the rotary table 7. Use the electric rod 11 to adjust the height of the clamping piece, and use the horizontal strip 12 to clamp the inner and outer diameters of the valve 9 to ensure stability. The shockproof design improves processing quality, and the circulating cleaning system extends the life of the equipment. The Z-axis platform 5 on the beam column 3 drives the drilling machine 6 to move to the preset drilling position; The rotary table 7 rotates the valve 9 according to the indexing requirements, and the drilling machine 6 drills holes layer by layer in a low-speed constant feed mode, first drilling small holes and then drilling the large holes formed around them to complete the fine processing.

[0034] Adsorption start: When air blowing is required, the second motor is driven. After the second motor rotates, it drives the main shaft 30 to move. While the main shaft 30 rotates, it drives the second telescopic plate 300 to extend. After the second telescopic plate 300 extends, it contacts the vacuum bag 36. The vacuum bag 36 is squeezed and deformed, and the internal gas is ejected to push the extension plate 34 out of the placement seat 33. The extension plate 34 extends to move toward the upper surface of the valve 9, and while extending, it adsorbs the debris on the upper surface of the valve 9 through the suction strip 35, so that the extension plate 34 and the suction strip 35 are driven in time to adsorb the debris and burrs in the hole; Dynamic chip removal: The gas-driven adsorption component covers the surface of the valve 9 and the hole, combined with negative pressure recovery to avoid secondary pollution; High-precision drilling and automatic chip removal are integrated to reduce manual intervention; Burr recovery: After the debris on the upper surface of the valve 9 is absorbed by the suction strip 35, the second telescopic plate 300 gradually retracts, and the extension plate 34 moves back and resets to the inside of the placement seat 33. The placement seat 33 is connected to the recovery block 32. At this time, the control valve opening of the three-way valve 323 is opened, and the pipe 2 322 and the pipe 1 321 are closed, and the air inlet pipe 325 is opened, and then the fan 324 is started to work. The upper part of the fan 324 is the air outlet area. The fan 324 blows the wind upwards, and the wind blows to the extension plate 34, and the extension plate 34 is extended. The vibration of the display board 34 shakes off the burrs and debris on the suction strip 35 and puts them into the recovery block 32. A negative pressure area is formed at the bottom of the fan 324. The negative pressure enters the storage tube 21 through the air inlet pipe 325, and negative pressure is generated inside the storage tube 21. The negative pressure draws the debris and burrs inside the recovery block 32 into the storage tube 21 through pipe 2 322 and pipe 1 321, thereby forming a closed loop to complete centralized processing; closed-loop control: The fully closed-loop system of the rotary worktable 7 ensures indexing accuracy, and the brake system 8 reduces load fluctuations.

[0035] Hole cleaning: The suction strip 35 absorbs the debris on the upper surface of the valve 9 and sucks out the burrs in the drilled hole; the sealing cover 19 is closed to form a sealed space to enhance the negative pressure effect.

[0036] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic indexing flange drilling device for large-caliber valves, comprising a base (1) and a beam column (3) fixedly mounted above the base (1), an X-axis platform (4) being provided above the beam column (3), a Z-axis platform (5) being slidably provided on one side of the X-axis platform (4), a drilling machine (6) being fixed on the Z-axis platform (5), a rotary table (7) driven by a servo motor being provided above the base (1), a valve (9) being provided above the rotary table (7), the rotary table (7) supporting the valve (9) to rotate for indexing flange drilling, a brake system (8) being provided on the outer side of the rotary table (7), and characterized in that: Also includes: A clamping portion is provided above the base (1) and located outside the rotary table (7) to clamp the valve (9); The clamping portion comprises a clamping member and a downward moving member, the clamping member is arranged above the valve (9) and connected to the base (1), the clamping member is connected to the downward moving member, and the downward moving member is arranged on the inner wall of the clamping member; A chip removal portion is provided above the valve (9) and on the inner wall of the valve (9) to clean the chips left after the valve (9) is drilled; The chip removal part includes an adsorption part and a receiving part, the adsorption part is arranged above the valve (9), the universal part is arranged on the inner wall of the valve (9), and the receiving part is connected to the adsorption part; A circulation part is arranged outside the valve (9) and is connected to the chip removal part to recover burrs; The circulation member includes an air outlet member and a driving member. The air outlet member is arranged on one side of the storage member and is connected to the driving member. The driving member is arranged outside the air outlet member.

2. The large-diameter valve automatic indexing flange drilling equipment according to claim 1 is characterized by: The clamping member comprises: There are three electric rods (11), which are symmetrically arranged above the base (1) and surround the valve (9); three first motors are symmetrically arranged on the base (1) around the rotating workbench (7) and are driven vertically upward; An electric rod (11) is fixed to the driving end of the first motor; An electric telescopic plate (13) is arranged above the electric rod (11); A horizontal strip plate (12) is slidably connected to the inner wall of the electric telescopic plate (13); There are two clamping plates (15), one is fixed below the electric telescopic plate (13), and the other is fixed on the horizontal strip plate (12).

3. The large-diameter valve automatic indexing flange drilling equipment according to claim 2 is characterized by: The downward moving member comprises: A fixed arc plate (16) is arranged on the inner wall of the clamping plate (15) on one side; The vertical plate (17) is fixed below the fixed arc plate (16).

4. The large-diameter valve automatic indexing flange drilling equipment according to claim 3 is characterized by: The downward moving member further comprises: The rotating shaft (18) is arranged on the outside of the vertical plate (17).

5. The large-diameter valve automatic indexing flange drilling equipment according to claim 4 is characterized by: The downward moving member further comprises: A sealing upper cover (19) is rotatably arranged on the outside of the rotating shaft (18) and contacts the inside of the vertical plate (17); A sealing lower cover (20) is disposed below the sealing upper cover (19) and can be sealed with the sealing upper cover (19); The storage tube (21) is fixedly mounted on the bottom end of the vertical plate (17).

6. The large-diameter valve automatic indexing flange drilling equipment according to claim 1 is characterized by: The adsorption member includes: An electric rotating shaft (311) is arranged outside the crossbeam column (3), one end of which is provided with a direct drive motor and is connected to the output end of the direct drive motor; A first telescopic plate (31) is arranged outside the electric rotating shaft (311); A placement seat (33) is provided on one side of the electric rotating shaft (311) and is located below the first telescopic plate (31); An extension plate (34) is arranged on the inner side of the placement seat (33); A plurality of suction strips (35) are fixedly mounted below the extension plate (34); The locking part is arranged on the inner wall of the placement seat (33).

7. The large-diameter valve automatic indexing flange drilling equipment according to claim 6, characterized in that: The locking part includes: An annular strip plate (301) is arranged on the inner wall of the placement seat (33); A plug-in rod (302) is arranged above the annular strip plate (301); An elastic strip (304) is movably mounted above the plug rod (302) and penetrates the inner wall of the placement seat (33); The lower surface of the placement seat (33) is provided with a plurality of notches that cooperate with the elastic strip (304) to facilitate insertion and positioning of the elastic strip (304); A positioning lock hole is provided on one side of the placement seat (33); The locking bar (303) is fixedly mounted on one side of the placement seat (33) and cooperates with a positioning lock hole provided on the other side of the placement seat (33).

8. The large-diameter valve automatic indexing flange drilling equipment according to claim 6, characterized in that: The storage unit includes: A recovery block (32) is fixedly mounted on the inner wall of the placement seat (33); Pipeline 2 (322), having three pieces, symmetrically arranged outside the recovery block (32); A three-way valve (323) is fixedly installed above the second pipe (322) and is provided with a control valve above; Pipeline 1 (321), fixedly installed on one side of the three-way valve (323); A fan (324) is provided above the main shaft (30); An air intake pipe (325) is arranged outside the storage pipe (21); A through slot is provided between the placement seat (33) and the recovery block (32).

9. The large-diameter valve automatic indexing flange drilling equipment according to claim 6, characterized in that: The gas outlet member comprises: A vacuum bag (36) is arranged inside the placement seat (33); The nozzle (38), which is provided in plurality, is mounted outside the vacuum bag (36) and can cooperate with the extension plate (34).

10. The large-diameter valve automatic indexing flange drilling equipment according to claim 1, characterized in that: The driving member includes: A main shaft (30) is rotatably disposed at the center of the valve (9); The bottom end of the main shaft (30) is connected to a second motor and is connected to a driving end of the second motor; The second telescopic plate (300) is fixedly mounted on the outside of the main shaft (30).

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