A multi-axis drilling device for flange machining

Abstract

This application belongs to the field of flange processing technology, and particularly relates to a multi-axis drilling device for flange processing, including a flange body to be processed, a drilling platform, flange clamps, and a drilling bit. The top of the drilling platform has at least two evenly distributed moving slots, and a flange clamp is movably installed in each moving slot. The flange body to be processed is placed at the center of the top of the drilling platform and positioned between the flange clamps. In this invention, when the linear moving frame moves downward, the vertical frame drives the first piezoelectric plate downward until it contacts the second piezoelectric plate, energizing the switching solenoid block. Then, under the magnetic repulsion between the switching solenoid block and the magnetic slider, the magnetic slider drives the pusher to slide away from the switching solenoid block, i.e., the pusher drives the flange clamps to move, causing the flange clamps to close, thus fixing the flange body to be processed at the center of the drilling platform, making the drilling position more precise and automatically completing the positioning action.

Description

Technical Field

[0001] This invention relates to a multi-axis drilling device, specifically a multi-axis drilling device for flange processing. Background Technology

[0002] A valve is a device used in fluid systems to control the direction, pressure, and flow rate of a fluid. It allows the medium within piping and equipment to flow or stop and controls its flow rate. Valves are control components in pipeline fluid transport systems, used to change the cross-sectional area of ​​the passage and the direction of medium flow, and have functions such as guiding, stopping, throttling, check valve, diverting, or overflowing and relieving pressure. Valve flanges are essential components of valves; to facilitate valve installation, holes need to be drilled in the valve flanges. Most existing drilling equipment lacks corresponding clamping devices, reducing the stability of the drilling equipment and making it easy for the valve flange to shift, resulting in reduced drilling quality and affecting its use.

[0003] To address this, those skilled in the art have conducted research and improvements, such as the valve flange multi-axis drilling device with high processing efficiency proposed in application number CN202122397034.7. In this technical solution, the clamping plate is tightly attached to the outside of the valve flange under the action of the torque spring, which can improve the drilling stability. However, this device can only perform drilling of a single hole position, affecting the overall processing efficiency.

[0004] In view of this, the present invention designs a multi-axis drilling device for flange processing. Summary of the Invention

[0005] The main objective of this disclosure is to provide a multi-axis drilling apparatus for flange processing, so as to effectively solve the problems raised by the inventors in the above-mentioned background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A multi-axis drilling device for flange processing includes a flange body to be processed, a drilling platform, flange clamps, and a drilling bit. The top of the drilling platform has at least two evenly distributed movable slots, and a flange clamp is movably installed in each movable slot. The flange body to be processed is placed at the center of the top of the drilling platform and is located between the flange clamps. At least two hydraulic push rods are fixedly installed on the top of the drilling platform, and the output end of the hydraulic push rods is fixedly connected to a linear moving frame. The linear moving frame is located directly above the drilling platform, and a multi-axis mounting frame is fixedly installed at the center of the bottom of the linear moving frame. Several alignment multi-axis are rotatably installed in a circular array within the multi-axis mounting frame. The bottom end of each alignment multi-axis extends downward and is fixedly connected to a drilling bit.

[0007] Preferably, the portion of the alignment multi-axis located within the multi-axis mounting frame is fixedly equipped with a driven gear, a drive shaft is rotatably mounted at the center of the bottom of the linear moving frame, and the bottom end of the drive shaft extends into the multi-axis mounting frame and is fixedly connected to a drive gear, each of the driven gears meshing and transmitting with the drive gear, and an active drive motor is fixedly mounted on the top of the linear moving frame, and the output end of the active drive motor is fixedly connected to the top end of the drive shaft.

[0008] Preferably, the drill bit has an internal cavity and several evenly distributed flares on its side. Each flare has an expansion drill bit rotatably mounted on it via a pin. A sealing seat is fixedly mounted on the inside of the flare, and an X-axis through rod is slidably mounted through the sealing seat. One end of the X-axis through rod inside the flare slides in contact with the expansion drill bit, and the other end of the X-axis through rod has a smooth protrusion integrally formed. A compression spring is fixedly connected between the smooth protrusion and the sealing seat, and the sealing seat and the inside of the expansion drill bit are magnetically attracted.

[0009] Preferably, a linear lead screw is rotatably installed inside the cavity, and a movable cone is threaded onto the linear lead screw. The movable cone is slidably installed inside the cavity, and the smooth protrusion contacts the lower inclined surface of the movable cone. A small servo motor is fixedly installed on the top of the drilling bit, and the output end of the small servo motor is fixedly connected to the top end of the linear lead screw.

[0010] Preferably, the magnetic attraction between the sealing seat and the extended drill bit is greater than the elastic force of the compression spring.

[0011] Preferably, a guide slide column is fixedly installed in the movable groove, and a magnetic slider is slidably installed on the guide slide column. A push frame is fixedly connected to the magnetic slider, and the push frame is fixedly connected to a flange clamp. The flange clamp is sleeved on the guide slide column. A switch electromagnetic block is fixedly installed on the guide slide column, and a return spring is fixedly connected between the switch electromagnetic block and the magnetic slider. The return spring is sleeved on the guide slide column. When energized, the switch electromagnetic block and the magnetic slider repel each other magnetically, and the magnetic repulsion force is greater than the elastic force of the return spring.

[0012] Preferably, a bracket is fixedly installed on the outer shell of the hydraulic push rod, and a second piezoelectric plate is fixedly installed on the bracket. A vertical frame is fixedly connected to the bottom of the linear moving frame, and a first piezoelectric plate is fixedly connected to the bottom end of the vertical frame. The first piezoelectric plate and the second piezoelectric plate are electrically connected to the energizing switch of the switching solenoid block.

[0013] Preferably, the top of the drilling platform is provided with alignment slots arranged in a ring array, and the alignment slots are located directly below the drilling bit.

[0014] In view of this, compared with the prior art, the beneficial effects of the present invention are: (i) In this application, during drilling, the hydraulic push rod and the active drive motor are started. The hydraulic push rod drives the linear moving frame to move downward, causing the multi-axis mounting frame and the active drive motor to move downward. The active drive motor drives the drive shaft to rotate. Under the meshing transmission effect of the drive gear and the driven gear, each aligned multi-axis rotates simultaneously. Then each drilling bit rotates and moves downward until the rotating drilling bit drills the flange body to be processed. All the required holes can be drilled in one go, greatly improving work efficiency.

[0015] (ii) In this application, the small servo motor works, causing the linear lead screw to rotate. The moving cone will move downward, and its inclined surface will squeeze the smooth protrusion, causing the X-axis through rod to move towards the expansion drill bit. The compression spring is compressed, and the X-axis through rod pushes the expansion drill bit outward. Under the magnetic attraction between the expansion drill bit and the sealing seat, the X-axis through rod can always be stressed and attached to the expansion drill bit. This method will change the diameter of the drilling bit, so that holes of different diameters can be opened on the flange, making it more adaptable and flexible.

[0016] (III) In this application, when the linear moving frame moves down, the vertical frame drives the first piezoelectric piece to move down until it contacts the second piezoelectric piece, so that the switch solenoid block is energized. Then, under the magnetic repulsion between the switch solenoid block and the magnetic slider, the magnetic slider drives the push frame to slide away from the switch solenoid block. The return spring is stretched, that is, the push frame drives the flange clamp to move, so that each flange clamp makes a closing movement to fix the flange body to be processed at the center of the drilling platform, making the drilling position more accurate, and automatically completing the positioning action before drilling. Attached Figure Description

[0017] Figure 1 The diagram shown is a structural schematic of the multi-axis drilling device for flange processing provided by the present invention. Figure 2 As shown Figure 1 A schematic diagram of a local structure in the image; Figure 3 The diagram shown is a schematic of the internal structure of a drilling bit. Figure 4 The diagram shown is a top view of the connection between the driving gear and each driven gear. Figure 5 As shown Figure 1 A schematic diagram of the structure after the linear moving frame moves downwards; Figure 6 As shown Figure 5 A schematic diagram of a local structure.

[0018] icon: 1-Flange body to be processed; 2-Drilling platform; 3-Flange clamp; 4-Hydraulic push rod; 5-Linear moving frame; 6-Multi-axis mounting frame; 7-Alignment multi-axis; 8-Drill bit; 9-Drive shaft; 10-Driving gear; 11-Driven gear; 12-Active drive motor; 13-Extended drill bit; 14-Sealing seat; 15-X-axis through rod; 16-Compression spring; 17-Linear lead screw; 18-Moving cone; 19-Small servo motor; 20-Guide slide column; 21-Magnetic slider; 22-Push frame; 23-Switch electromagnetic block; 24-Reset spring; 25-Vertical frame; 26-First piezoelectric piece; 27-Second piezoelectric piece; 28-Alignment groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-6 The present invention provides the following embodiments: A multi-axis drilling device for flange processing includes a flange body 1 to be processed, a drilling platform 2, a flange clamp 3, and a drilling bit 8. The top of the drilling platform 2 has at least two evenly distributed moving slots, and a flange clamp 3 is movably installed in each moving slot. The flange body 1 to be processed is placed at the center of the top of the drilling platform 2 and is located between the flange clamps 3. At least two hydraulic push rods 4 are fixedly installed on the top of the drilling platform 2, and the output end of the hydraulic push rod 4 is fixedly connected to a linear moving frame 5. The linear moving frame 5 is located directly above the drilling platform 2, and a multi-axis mounting frame 6 is fixedly installed at the center of the bottom of the linear moving frame 5. Several alignment multi-axis 7 arranged in a circular array are rotatably installed inside the multi-axis mounting frame 6. The bottom end of each alignment multi-axis 7 extends downward and is fixedly connected to a drilling bit 8.

[0021] Specifically, the driven gear 11 is fixedly installed on the part of the alignment multi-axis 7 located within the multi-axis mounting frame 6. A drive shaft 9 is rotatably installed at the center of the bottom of the linear moving frame 5, and the bottom end of the drive shaft 9 extends into the multi-axis mounting frame 6 and is fixedly connected to the drive gear 10. Each driven gear 11 is meshed and transmitted with the drive gear 10. An active drive motor 12 is fixedly installed on the top of the linear moving frame 5, and the output end of the active drive motor 12 is fixedly connected to the top end of the drive shaft 9. During drilling, the hydraulic push rod 4 and the main... The active drive motor 12 starts, and the hydraulic push rod 4 drives the linear moving frame 5 to move downward, causing the multi-axis mounting frame 6 and the active drive motor 12 to move downward. The active drive motor 12 drives the drive shaft 9 to rotate. Under the meshing transmission effect of the active gear 10 and the driven gear 11, each aligned multi-axis 7 rotates simultaneously. Then each drilling bit 8 rotates and moves downward until the rotating drilling bit 8 drills the flange body 1 to be processed. All the required holes can be drilled in one go, greatly improving work efficiency.

[0022] Specifically, the drill bit 8 has an internal cavity, and several evenly distributed flares are formed on its side. An expansion drill bit 13 is rotatably mounted in each flare via a pin. A sealing seat 14 is fixedly mounted inside the flare, and an X-axis through rod 15 is slidably mounted through the sealing seat 14. One end of the X-axis through rod 15 inside the flare slides in contact with the expansion drill bit 13, and the other end of the X-axis through rod 15 has a smooth protrusion integrally formed. A compression spring 16 is fixedly connected between the smooth protrusion and the sealing seat 14. The sealing seat 14 and the inner side of the expansion drill bit 13 are magnetically attracted. A linear lead screw 17 is rotatably mounted inside the cavity, and a movable cone 18 is threaded onto the linear lead screw 17. The movable cone 18 is slidably mounted within the cavity, and the smooth protrusion and the movable cone 18 are slidably mounted through the cavity. The lower inclined surfaces of the moving cone 18 are in contact with each other. A small servo motor 19 is fixedly installed on the top of the drill bit 8, and the output end of the small servo motor 19 is fixedly connected to the top of the linear lead screw 17. The magnetic attraction between the sealing seat 14 and the extended drill bit 13 is greater than the elastic force of the compression spring 16. When the small servo motor 19 works, the linear lead screw 17 is rotated, and the moving cone 18 will move downward. Its inclined surface will squeeze the smooth protrusion, causing the X-axis through rod 15 to move towards the extended drill bit 13. The compression spring 16 is compressed, and the X-axis through rod 15 pushes the extended drill bit 13 outward. Under the magnetic attraction between the extended drill bit 13 and the sealing seat 14, the X-axis through rod 15 can always be stressed and attached to the extended drill bit 13. This method will change the diameter of the drill bit 8.

[0023] Specifically, a guide slide column 20 is fixedly installed inside the moving slot, and a magnetic slider 21 is slidably installed on the guide slide column 20. A push frame 22 is fixedly connected to the magnetic slider 21, and the push frame 22 is fixedly connected to the flange clamp 3. The flange clamp 3 is sleeved on the guide slide column 20. A switch solenoid block 23 is fixedly installed on the guide slide column 20, and a return spring 24 is fixedly connected between the switch solenoid block 23 and the magnetic slider 21. The return spring 24 is sleeved on the guide slide column 20. When energized, the switch solenoid block 23 and the magnetic slider 21 repel each other magnetically, and the magnetic repulsion force is greater than the elastic force of the return spring 24. A bracket is fixedly installed on the outer shell of the hydraulic push rod 4, and a second piezoelectric piece 27 is fixedly installed on the bracket. A vertical frame 25 is fixedly connected to the bottom of the linear moving frame 5. The bottom end of the vertical frame 25 is fixedly connected to a first piezoelectric piece 26. The first piezoelectric piece 26 and the second piezoelectric piece 27 are electrically connected to the energizing switch of the switching solenoid block 23. When the linear moving frame 5 moves down, the vertical frame 25 drives the first piezoelectric piece 26 to move down until it contacts the second piezoelectric piece 27, so that the switching solenoid block 23 is energized. Then, under the magnetic repulsion between the switching solenoid block 23 and the magnetic slider 21, the magnetic slider 21 drives the pusher 22 to slide away from the switching solenoid block 23. The return spring 24 is stretched, that is, the pusher 22 drives the flange clamp 3 to move, so that each flange clamp 3 performs a closing movement to fix the flange body 1 to be processed at the center of the drilling platform 2. The vertical frame 25 is made of elastic material, so that it has a certain deformation performance.

[0024] Specifically, the top of the drilling platform 2 is provided with alignment grooves 28 arranged in a ring array, and the alignment grooves 28 are located directly below the drilling bit 8. Drilling waste falls into the alignment grooves 28 for cleaning and to avoid damage to the flange.

[0025] The specific implementation method of this embodiment is as follows: The flange body 1 to be processed is placed on the drilling platform 2 and positioned between the flange clamps 3, so that the flange body 1 to be processed is initially positioned. During drilling, the hydraulic push rod 4 and the active drive motor 12 are started. The hydraulic push rod 4 drives the linear moving frame 5 to move downward, so that the multi-axis mounting frame 6 and the active drive motor 12 move downward. The active drive motor 12 drives the drive shaft 9 to rotate. Under the meshing transmission effect of the drive gear 10 and the driven gear 11, each aligned multi-axis 7 rotates simultaneously. Then each drilling bit 8 rotates and moves downward until the drilling bit 8 in the rotating state drills the flange body 1 to be processed. All the required holes can be drilled in one go, and the work efficiency is greatly improved. When the small servo motor 19 operates, the linear lead screw 17 is rotated, and the moving cone 18 will move downward. Its inclined surface will press against the smooth protrusion, causing the X-axis through rod 15 to move towards the extension drill plate 13. The compression spring 16 is compressed, and the X-axis through rod 15 pushes the extension drill plate 13 outward. Under the magnetic attraction between the extension drill plate 13 and the sealing seat 14, the X-axis through rod 15 can always be stressed and attached to the extension drill plate 13. This method will change the diameter of the drilling bit 8, so that holes of different diameters can be opened on the flange, making it more adaptable and flexible. When the linear moving frame 5 moves downward, the vertical frame 25 drives the first piezoelectric piece 26 to move downward until it contacts the second piezoelectric piece 27, which energizes the switch solenoid block 23. Then, under the magnetic repulsion between the switch solenoid block 23 and the magnetic slider 21, the magnetic slider 21 drives the pusher 22 to slide away from the switch solenoid block 23. The return spring 24 is stretched, that is, the pusher 22 drives the flange clamp 3 to move, so that each flange clamp 3 performs a closing movement to fix the flange body 1 to be processed at the center of the drilling platform 2, making the drilling position more accurate and automatically completing the positioning action before drilling.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-axis drilling device for flange processing, characterized in that: The assembly includes a flange body (1) to be processed, a drilling platform (2), flange clamps (3) and a drilling bit (8). The top of the drilling platform (2) has at least two evenly distributed moving slots, and each moving slot is movably installed with a flange clamp (3). The flange body (1) to be processed is placed at the center of the top of the drilling platform (2) and is located between each flange clamp (3). At least two hydraulic push rods (4) are fixedly installed on the top of the drilling platform (2), and the output end of the hydraulic push rods (4) is fixedly connected to a linear moving frame (5). The linear moving frame (5) is located directly above the drilling platform (2), and a multi-axis mounting frame (6) is fixedly installed at the center of the bottom of the linear moving frame (5). Several alignment multi-axis (7) arranged in a ring array are rotatably installed inside the multi-axis mounting frame (6). The bottom end of each alignment multi-axis (7) extends downward and is fixedly connected to a drilling bit (8). A guide slide column (20) is fixedly installed in the movable groove, and a magnetic slider (21) is slidably installed on the guide slide column (20). A push frame (22) is fixedly connected to the magnetic slider (21), and the push frame (22) is fixedly connected to the flange clamp (3). The flange clamp (3) is sleeved on the guide slide column (20). A switch electromagnetic block (23) is fixedly installed on the guide slide column (20), and a reset spring (24) is fixedly connected between the switch electromagnetic block (23) and the magnetic slider (21). The reset spring (24) is sleeved on the guide slide column (20). When the switch electromagnetic block (23) is energized, it and the magnetic slider (21) repel each other magnetically, and the magnetic repulsion force is greater than the elastic force of the reset spring (24). A bracket is fixedly installed on the outer shell of the hydraulic push rod (4), and a second piezoelectric piece (27) is fixedly installed on the bracket. A vertical frame (25) is fixedly connected to the bottom of the linear moving frame (5), and a first piezoelectric piece (26) is fixedly connected to the bottom end of the vertical frame (25). The first piezoelectric piece (26), the second piezoelectric piece (27), and the energizing switch of the switching solenoid block (23) are electrically connected.

2. The multi-axis drilling device for flange processing according to claim 1, characterized in that: The portion of the alignment multi-axis (7) located within the multi-axis mounting frame (6) is fixedly equipped with a driven gear (11). A drive shaft (9) is rotatably mounted at the center of the bottom of the linear moving frame (5), and the bottom end of the drive shaft (9) extends into the multi-axis mounting frame (6) and is fixedly connected to a drive gear (10). Each of the driven gears (11) is meshed and connected to the drive gear (10). An active drive motor (12) is fixedly mounted on the top of the linear moving frame (5), and the output end of the active drive motor (12) is fixedly connected to the top end of the drive shaft (9).

3. The multi-axis drilling device for flange processing according to claim 2, characterized in that: The drill bit (8) has a cavity inside and several evenly distributed flares on its side. Each flare is fitted with an extension drill bit (13) by a pin. A sealing seat (14) is fixedly installed on the inside of the flare, and an X-axis through rod (15) is slidably installed on the sealing seat (14). One end of the X-axis through rod (15) inside the flare slides in contact with the extension drill bit (13), and the other end of the X-axis through rod (15) is integrally formed with a smooth protrusion. A compression spring (16) is fixedly connected between the smooth protrusion and the sealing seat (14). The sealing seat (14) and the inside of the extension drill bit (13) are magnetically attracted.

4. The multi-axis drilling device for flange processing according to claim 3, characterized in that: A linear lead screw (17) is rotatably installed inside the cavity, and a movable cone (18) is threaded onto the linear lead screw (17). The movable cone (18) is slidably installed inside the cavity. The smooth protrusion contacts the lower inclined surface of the movable cone (18). A small servo motor (19) is fixedly installed on the top of the drilling bit (8), and the output end of the small servo motor (19) is fixedly connected to the top end of the linear lead screw (17).

5. The multi-axis drilling device for flange processing according to claim 4, characterized in that: The magnetic attraction between the sealing seat (14) and the extended drill bit (13) is greater than the elastic force of the compression spring (16).

6. The multi-axis drilling device for flange processing according to claim 5, characterized in that: The top of the drilling platform (2) is provided with alignment slots (28) arranged in a ring array, and the alignment slots (28) are located directly below the drilling bit (8).

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