Radial drilling mechanism for wind power flange plate

Abstract

The invention relates to the field of flange plate drilling, in particular to a wind power flange plate radial drilling mechanism which comprises an outer frame and an inner frame, the outer frame and the inner frame horizontally slide through a fastening module, outer rollers are arranged at the two ends of the outer frame, inner rollers are arranged at the two ends of the inner frame, and the outer frame comprises a drilling device frame and a drilling motor. The drilling device frame is in sliding connection with the drilling motor, the drilling motor horizontally slides through the feeding driving module and drives the drill bit clamp to rotate, the drill bit is fixed to the front end of the drill bit clamp and points to the inner frame, and the axis of the drill bit is perpendicular to the axis connecting line of the outer rollers at the two ends of the outer frame. According to the radial drilling mechanism for the wind power flange plate, under the condition that the flange plate is not moved, it can be guaranteed that the drill bit points to the circle center all the time during machining, and the drilling requirement for more accurate drilling position requirements can be met through automatic control.

Description

Technical Field

[0001] The present invention relates to the field of flange drilling, and specifically to a radial drilling mechanism for wind power flange. Background Art

[0002] With the development of wind power technology, large wind power equipment is widely used because it can better provide wind power generation capacity. Among them, the flange is a key component of wind power equipment. In wind power equipment, large-sized flanges are mostly used as connecting components. It connects the fan blades and the main shaft, as well as between the sections of the tower barrel, ensuring the stability and integrity of the entire wind turbine structure. This connection not only requires the flange to have high strength and high precision, but also needs to be able to withstand huge wind forces and torques, and balance and transfer these forces to the support structure. During the processing of the flange, radial drilling needs to be performed on its edge to make it adaptable to different models and specifications of wind turbines, and high requirements are imposed on the accuracy and quality of drilling in order to meet the requirements of high-strength loads and torques.

[0003] When using traditional drilling processing technology for large flanges, large equipment and lifting and hoisting equipment are often required to cooperate to complete the processing. The processing is not flexible enough, the processing speed is slow, and the accuracy is not high. Therefore, in view of the above current situation, there is an urgent need to develop a radial drilling mechanism for wind power flange to overcome the deficiencies in current practical applications. Summary of the Invention

[0004] The purpose of the present invention is to provide a radial drilling mechanism for large flanges in view of the problems of inflexible processing, slow processing speed, and low accuracy in the radial drilling of large flanges.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A radial drilling mechanism for wind power flange, including an outer frame and an inner frame. The outer frame and the inner frame are horizontally slid through a fastening module. Outer rollers are provided at both ends of the outer frame, and inner rollers are provided at both ends of the inner frame. The outer frame includes a drilling device frame and a drilling motor. The drilling device frame is slidably connected to the drilling motor. The drilling motor is horizontally slid through a feed drive module. The drilling motor drives the drill chuck to rotate. The drill is fixed at the front end of the drill chuck, and the drill points in the direction of the inner frame, and the axis of the drill is perpendicular to the axis connection line of the outer rollers at both ends of the outer frame.

[0006] Preferably, the fastening module includes a fastening motor, a fastening screw rod, and a fastening screw hole seat. The fastening motor is fixedly connected to the outer frame. The fastening motor drives the fastening screw rod to rotate. The fastening screw hole seat is fixedly connected to the inner frame. The fastening screw rod is threadedly connected to the fastening screw hole seat.

[0007] Preferably, the feed drive module includes a feed motor, a feed screw rod, and a feed screw hole seat. The feed screw hole seat is fixedly connected to the drilling motor, the feed motor is fixedly connected to the inner frame, the feed motor drives the feed screw rod to rotate, and the feed screw hole seat is threadedly connected to the feed screw rod.

[0008] Preferably, the outer frame and the inner frame are horizontally slidably connected through a fastening slide rail fixedly connected to the inner frame and a fastening slide rod fixedly connected to the outer frame.

[0009] Preferably, a vertical lifting module is provided between the drilling device frame and the drilling motor. The vertical lifting module includes a vertical frame, a vertical drive motor, a vertical screw rod, and a vertical screw hole seat. The vertical frame is horizontally slidably connected to the drilling device frame. The vertical drive motor is placed inside the vertical frame and fixedly connected to the vertical frame. A plurality of groups of vertical screw rods are provided inside the vertical frame. The vertical screw rods are arranged vertically. One end of the vertical screw rod is driven by the vertical drive motor, and the other end is rotatably connected to the top of the vertical frame. The drilling motor is fixedly connected to the vertical screw hole seat, and the vertical screw hole seat is threadedly connected to the vertical screw rod.

[0010] Preferably, a vertical slide rod is vertically placed inside the vertical frame, and both ends of the vertical slide rod are fixedly connected to the upper and lower surfaces of the vertical frame.

[0011] Preferably, there are a pair of feed drive modules, symmetrically arranged on both sides of the drilling motor.

[0012] Preferably, a long strip-shaped opening is provided at the bottom of the drilling device frame. A pin is fixedly connected to the vertical frame perpendicular to it. The other end of the pin is fixedly connected to a pin head. The pin and the pin head form a pin structure. The diameter of the pin is slightly smaller than the width of the opening, and the diameter of the pin head is slightly larger than the width of the opening.

[0013] Preferably, a motor drive is built into the inner roller or the outer roller.

[0014] Preferably, an image sensor module is provided on the inner frame. The motor built into the inner roller or the outer roller is a stepping motor, and the stepping motor is controlled by a program in the microcomputer through the image sensor module.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The present invention can drive the inner frame and the outer frame to clamp the inner and outer walls of the flange through a feed motor, and the rollers arranged at the ends of the inner frame and the outer frame are in contact with the inner and outer walls of the flange, so that the drilling mechanism can perform a circular motion along the flange. The drill bit of the drilling motor is perpendicular to the connection line of the outer rollers at the end of the outer frame. According to the vertical chord theorem, no matter how the drilling mechanism moves, the drill bit always points to the center of the flange, ensuring that the drilling direction is towards the center of the flange. In addition, the drilling motor can move vertically up and down, that is, drilling can be performed at different heights as required. The drilling device can also perform a fully automatic drilling operation through laser engraving, an image sensor module, and a program control in a microcomputer. Compared with the traditional wind power flange drilling process, the wind power flange radial drilling mechanism provided by the present invention can place the drilling mechanism on the flange for drilling without moving the flange, and has no strict requirements on whether the flange is placed horizontally, making the processing more flexible. It does not require large equipment assistance and can perform fully automatic drilling, making the processing more convenient and fast. During processing, it can ensure that the drill bit always points to the center, and through automatic control, it can meet the drilling requirements with more precise drilling positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of a wind power flange radial drilling mechanism of the present invention.

[0017] Figure 2 is another schematic diagram of the overall structure of the present invention.

[0018] Figure 3 is a schematic diagram when the present invention is working.

[0019] Figure 4 is a schematic diagram of the present invention with a pair of horizontal driving devices for the drilling mechanism.

[0020] Figure 5 is a schematic diagram of the present invention with a vertical driving device for the drilling mechanism added.

[0021] Figure 6 is another schematic diagram of the present invention with a vertical driving device for the drilling mechanism added.

[0022] Figure 7 is a schematic diagram of the present invention with a horizontal slide rail mechanism for the drilling mechanism added.

[0023] Figure 8 is a schematic diagram of the present invention with a laser engraving and image sensor module added.

[0024] In the figure: 1 - outer frame, 2 - inner frame, 3 - roller, 301 - outer roller, 302 - inner roller, 4 - drill bit fixture, 5 - slide rail, 6 - feed screw hole seat, 7 - feed screw rod, 8 - fastening screw rod, 9 - feed motor, 10 - fastening motor, 11 - drilling motor, 12 - drill bit, 13 - support sliding member, 14 - flange, 15 - vertical frame, 16 - vertical drive motor, 17 - vertical screw rod, 18 - drilling motor bracket, 19 - vertical slide bar, 20 - image sensor module, 101 - drilling device frame, 102 - fastening slide bar, 103 - outer roller shaft, 104 - opening, 151 - pin, 152 - pin cap, 181 - vertical screw hole seat, 201 - feed motor bracket, 202 - fastening screw hole seat, 203 - support member, 204 - inner roller shaft, 205 - fastening slide rail. Detailed implementation manners

[0025] The technical solutions of the present application will be further described in detail below in combination with specific implementation manners.

[0026] Three embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0027] The following is the first embodiment. The example of the first embodiment is shown in the attached Figure 1 , attached Figure 2 , attached Figure 3 , attached Figure 4 , and shown as follows.

[0028] A radial drilling mechanism for a wind power flange, such as Figure 1 and Figure 2As shown in the figure, it includes an outer frame 1, an inner frame 2 and rollers 3. The rollers 3 include outer rollers 301 placed at both ends of the outer frame 1 and inner rollers 302 placed at both ends of the inner frame 2. The outer rollers 301 can rotate horizontally around the axis through an outer roller shaft 103 fixedly connected to the outer frame 1, and the inner rollers 302 can rotate horizontally around the axis through an inner roller shaft 204 fixedly connected to the inner frame 2. A drilling device is provided on the outer side of the outer frame 1. The drilling device includes a drilling device frame 101 and a drilling motor 11. The drilling motor 11 is slidably connected to the drilling device frame 101 through a slide rail 5, and the sliding direction is perpendicular to the connection line of the centers of the outer rollers 301 at the end of the outer frame. A feed drive module is provided on the drilling motor 11. The feed drive module includes a feed motor 9 fixedly connected to the inner frame 2, a feed lead screw 7 fixedly connected to the drive shaft of the feed motor 9, and a feed thread hole seat 6 fixedly connected to the drilling motor 11. The outer frame 1 and the inner frame 2 are horizontally slidably connected through a fastening slide rail 205 fixedly connected to the inner frame 2 and a fastening slide bar 102 fixedly connected to the outer frame 1. The feed motor 9 is fixedly connected to the inner frame 2 through a feed motor bracket 201. The feed motor 9 drives the feed lead screw 7 to rotate, and the feed thread hole seat 6 and the feed lead screw 7 are mutually matched through a threaded connection. Driven by the feed motor 9, the feed lead screw 7 rotates and enables the drilling motor 11 to move horizontally along the axis through cooperation with the feed thread hole seat 6. A fastening device is provided between the outer frame 1 and the inner frame 2. The fastening device includes a fastening motor 10 fixedly connected to the outer frame 1, a fastening lead screw 8 fixedly connected to the drive shaft of the fastening motor 10, and a fastening thread hole seat 202 fixedly connected to the inner frame 2. The fastening lead screw 8 and the fastening thread hole seat 202 are mutually matched through a threaded connection. The fastening motor 10 can drive the fastening lead screw 8 to rotate axially, and through cooperation with the fastening thread hole seat 202, it further drives the outer frame 1 and the inner frame 2 to move horizontally, thereby clamping the flange 14, as Figure 3 shown. The support member 203 is fixedly connected to the inner frame 2. The support sliding member 13 can freely rotate in the groove of the support member 203. The groove faces the upper plane of the lower flange 14. The drilling motor 11 drives the drill chuck 4 to rotate. The drill bit 12 is fixed at the front end of the drill chuck 4, and the drill bit points in the direction of the inner frame 2. According to the chord theorem, both the drill bit 12 and the sliding direction provided by the slide rail 5 point to the center of the flange. In addition, the rollers 3 are internally driven by a motor and can be driven by the motor to rotate, and then move on the side wall of the flange.

[0029] As Figure 4 shown, in order to provide stronger drilling pressure and a more stable drilling direction, this effect is achieved by setting the feed motor 9 and the feed lead screw 7 as a pair symmetric about the center line.

[0030] The schematic diagram of the second embodiment is shown in Appendix Figure 5 , Appendix Figure 6 , Appendix Figure 7 as follows.

[0031] As Figure 5 shown, a vertical lifting module is further provided between the drilling device frame 101 and the drilling motor 11 in the drilling device. The vertical lifting module includes a vertical frame 15, a vertical driving motor 16, a vertical lead screw 17, and a vertical threaded hole seat 181. The vertical frame 15 is horizontally slidably connected to the drilling device frame 101. The vertical driving motor 16 is placed inside the vertical frame 15 and fixedly connected to the vertical frame 15. A plurality of groups of vertical lead screws 17 are provided inside the vertical frame 15. The vertical lead screws 17 are vertically placed, one end is driven by a plurality of groups of vertical driving motors 16, and the other end is rotatably connected to the top of the vertical frame 15. The drilling motor 11 is fixedly connected to the drilling motor bracket 18. Vertical threaded hole seats 181 are provided around the drilling motor bracket 18. The vertical threaded hole seats 181 are in threaded connection and cooperate with the vertical lead screws 17. When the vertical driving motor 16 vertically drives the lead screw to rotate, the vertical threaded hole seats 181 that cooperate with the vertical lead screws 17, and the drilling motor 11 and the drilling motor bracket 18 fixedly connected to the threaded holes can move up and down along the vertical direction, achieving the effect of drilling at different heights of the flange.

[0032] As Figure 6 shown, vertical slide bars 19 are vertically placed inside the vertical frame 15. Both ends of the slide bars are fixedly connected to the upper and lower inner sides of the vertical frame 15. The vertical slide bars 19 pass through the drilling motor bracket 18, enabling the drilling motor bracket 18 to freely slide vertically through the vertical slide bars 19. Adding the vertical slide bars 19 can further limit the moving direction of the vertical movement of the drilling motor and improve the stability of the movement.

[0033] As Figure 7 shown, a long strip-shaped opening 104 is provided at the bottom of the drilling device frame 101. A cylindrical pin 151 and a pin cap 152 form a pin structure. One end of the pin 151 is fixedly connected to the vertical frame 15, and the other end is fixedly connected to the pin cap 152. The diameter of the pin 151 is slightly smaller than the width of the opening 104, and the diameter of the pin cap 152 is slightly larger than the width of the opening 104. The pin structure formed by the pin 151 and the top cap 152 passes through the opening 104 and can slide horizontally in the opening, and the feeding stroke of the drilling device is limited by the length of the opening 104, further improving the sliding stability of the vertical frame 15.

[0034] The diagram of Embodiment 3 is shown in the appendix Figure 8 as follows.

[0035] As Figure 8As shown, an image sensor module 20 is provided on the inner frame 2. The laser emission direction is vertically downward. The motor in the inner roller 302 is a stepper motor, and the stepper motor and the image sensor module 20 are controlled by a program in the microcomputer. When the device is working, first, marks are made by manual dotting or line drawing on the upper surface of the flange 14. The image sensor module 20 records the marked position as the starting point. The microcomputer drives the stepper motor in the inner roller 302 to drive the inner roller 302 to rotate and move on the side wall of the flange. When the image sensor module 20 recognizes the mark again, the microcomputer records the rotation stroke of the inner roller 302, which is the inner circumference of the flange. By equally dividing the circumference or at any interval position, the microcomputer can control the roller motor to drive the inner roller 302 to drive the overall drilling device to automatically run to the set equally divided position or the set arbitrary position for drilling, realizing drilling at any position or equally divided position of the flange and achieving semi-automatic operation.

[0036] The feed motor 9 is a stepper motor or a servo motor, which can achieve more precise clamping force. The fastening motor 10 is a stepper motor or a servo motor, which can achieve more precise position control.

[0037] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent.

Claims

1. A radial drilling mechanism for a wind turbine flange, characterized in that: The invention comprises an outer frame (1) and an inner frame (2), wherein the outer frame (1) and the inner frame (2) slide horizontally via a fastening module, outer rollers (301) are provided at both ends of the outer frame (1), and inner rollers (302) are provided at both ends of the inner frame (2), wherein the outer frame (1) comprises a drilling device frame (101) and a drilling motor (11), wherein the drilling device frame (101) and the drilling motor (11) are slidably connected, wherein the drilling motor (11) slides horizontally via a feed drive module, wherein the drilling motor (11) drives a drill bit fixture (4) to rotate, wherein a drill bit (12) is fixed at the front end of the drill bit fixture (4), wherein the drill bit (12) points in the direction of the inner frame (2), and wherein the axis of the drill bit (12) is perpendicular to the axis line connecting the axes of the outer rollers (301) at both ends of the outer frame (1).

2. The radial drilling mechanism for a wind turbine flange according to claim 1, characterized in that: The fastening module comprises a fastening motor (10), a fastening screw rod (8) and a fastening screw hole seat (202); the fastening motor (10) is fixedly connected to the outer frame (1); the fastening motor (10) drives the fastening screw rod (8) to rotate; the fastening screw hole seat (202) is fixedly connected to the inner frame (2); and the fastening screw rod (8) and the fastening screw hole seat (202) are connected via threads.

3. The radial drilling mechanism for a wind turbine flange according to claim 1, characterized in that: The feed drive module comprises a feed motor (9), a feed screw (7) and a feed screw hole seat (6); the feed screw hole seat (6) is fixedly connected to the drilling motor (11); the feed motor (9) is fixedly connected to the inner frame (2); the feed motor (9) drives the feed screw (7) to rotate; and the feed screw hole seat (6) and the feed screw (7) are connected via threads.

4. The radial drilling mechanism for a wind turbine flange according to claim 1, characterized in that: The outer frame (1) and the inner frame (2) are connected in a horizontal sliding manner via a fastening slide rail (205) fixedly connected to the inner frame (2) and a fastening slide rod (102) fixedly connected to the outer frame (1).

5. The radial drilling mechanism for a wind turbine flange according to claim 1, characterized in that: A vertical lifting module is provided between the drilling device frame (101) and the drilling motor (11), the vertical lifting module comprising a vertical frame (15), a vertical drive motor (16), a vertical screw rod (17) and a vertical screw hole seat (181); the vertical frame (15) is horizontally slidably connected to the drilling device frame (101); the vertical drive motor (16) is placed in the vertical frame (15) and fixedly connected to the vertical frame (15); a plurality of groups of vertical screw rods (17) are provided in the vertical frame (15); the vertical screw rods (17) are vertically arranged; one end of the vertical screw rods (17) is driven by the vertical drive motor (16) and the other end is rotatably connected to the top of the vertical frame (15); the drilling motor (11) is fixedly connected to the vertical screw hole seat (181); and the vertical screw hole seat (181) is connected to the vertical screw rod (17) by threads.

6. The radial drilling mechanism for a wind turbine flange according to claim 5, characterized in that: A vertical slide bar (19) is vertically placed in the vertical frame (15), and both ends of the vertical slide bar (19) are fixedly connected to the upper and lower surfaces of the vertical frame (15).

7. The radial drilling mechanism for a wind turbine flange according to claim 1, characterized in that: The feed drive modules are a pair and are symmetrically arranged on both sides of the drilling motor (11).

8. The radial drilling mechanism for a wind turbine flange according to claim 5, characterized in that: A long strip opening (104) is provided at the bottom of the drilling device frame (101), and a pin (151) vertically fixedly connected to the vertical frame (15) is provided on the vertical frame (15), and the other end of the pin (151) is fixedly connected to a nail cap (152), and the pin (151) and the nail cap (152) form a pin structure, wherein the diameter of the pin (151) is slightly smaller than the width of the opening (104), and the diameter of the nail cap (152) is slightly larger than the width of the opening (104).

9. The radial drilling mechanism for a wind turbine flange according to claim 1, characterized in that: The inner roller (302) or the outer roller (301) is internally provided with a motor drive.

10. The radial drilling mechanism for a wind turbine flange according to claim 9, characterized in that: An image sensor module (20) is provided on the inner frame (2); the motor built into the inner roller (302) or the outer roller (301) is a stepper motor; the stepper motor and the image sensor module (20) are controlled by a program in a microcomputer.

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