A radial drilling mechanism for a wind power flange

Abstract

The present invention relates to the field of flange drilling, and specifically to a radial drilling mechanism for a wind power flange, which includes: 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 driving module. The drilling motor drives the drill bit fixture to rotate. A drill bit is fixed at the front end of the drill bit fixture, and the drill bit points in the direction of the inner frame, and the axis of the drill bit is perpendicular to the connecting line of the centers of the outer rollers at both ends of the outer frame. The radial drilling mechanism for a wind power flange provided by the present invention can ensure that the drill bit always points to the center during processing without moving the flange, and through automatic control, it can meet the drilling requirements with more precise drilling positions.

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 plates. Background Art

[0002] With the development of wind power technology, large wind power equipment has been widely used due to its better ability to provide wind power generation. Among them, flange plates are key components of wind power equipment. In wind power equipment, larger-sized flange plates 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 plate 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 plate, radial drilling is required on its edge to make it adaptable to different models and specifications of wind turbines, and high requirements are placed on the accuracy and quality of the drilling in order to meet the high-strength load and torque requirements.

[0003] When using traditional drilling processing techniques for large flange plates, large equipment and lifting and hoisting equipment are often required for cooperation 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 plates 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 flange plates in view of the problems of inflexible processing, slow processing speed, and low accuracy in the radial drilling of large flange plates.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A radial drilling mechanism for wind power flange plates includes 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 driving module. The drilling motor drives the drill bit clamp to rotate. The drill bit is fixed at the front end of the drill bit clamp, and the drill bit points in the direction of the inner frame, and the axis of the drill bit is perpendicular to the connecting line of the axles of the outer rollers at both ends of the outer frame.

[0007] 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.

[0008] 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.

[0009] 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 bar fixedly connected to the outer frame.

[0010] 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. There are several groups of vertical screw rods 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.

[0011] Preferably, a vertical slide bar is vertically placed inside the vertical frame, and both ends of the vertical slide bar are fixedly connected to the upper and lower surfaces of the vertical frame.

[0012] Preferably, there are a pair of feed drive modules, symmetrically arranged on both sides of the drilling motor.

[0013] 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, and 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.

[0014] Preferably, a motor drive is built into the inner roller or the outer roller.

[0015] Preferably, an image sensor module is provided on the inner frame. The motor built into the inner roller or the outer roller is a stepper motor, and the stepper motor is controlled by a program in a microcomputer through the image sensor module.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 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 provided 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 line connecting the centers 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 needed. The drilling device can also perform fully automatic drilling operations 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 there are no strict requirements for 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

[0018] Figure 1 is the overall structural schematic diagram of a wind power flange radial drilling mechanism of the present invention.

[0019] Figure 2 is another overall structural schematic diagram of the present invention.

[0020] Figure 3 is the schematic diagram when the present invention is working.

[0021] Figure 4 is the schematic diagram of the present invention with a pair of horizontal driving devices for the drilling mechanism.

[0022] Figure 5 is the schematic diagram of the present invention with a vertical driving device for the drilling mechanism added.

[0023] Figure 6 is another schematic diagram of the present invention with a vertical driving device for the drilling mechanism added.

[0024] Figure 7 is the schematic diagram of the present invention with a horizontal sliding rail mechanism for the drilling mechanism added.

[0025] Figure 8 is the schematic diagram of the present invention with a laser engraving and image sensor module added.

[0026] 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

[0027] The technical solution of the present application will be further described in detail below in conjunction with the specific implementation manners.

[0028] Three embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0029] 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 in the attached

[0030] A radial drilling mechanism for a wind power flange, 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. 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 in the axial direction 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 can drive 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 rotate freely 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 12 is fixed at the front end of the drill chuck 4, and the drill points in the direction of the inner frame 2. According to the vertical chord theorem, both the drill 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.

[0031] 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 midline.

[0032] The diagram of the second embodiment is shown in Appendix Figure 5 , Appendix Figure 6 , Appendix Figure 7 and the specific implementation method is as follows.

[0033] As shown Figure 5 in the figure, 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 threadedly connected 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, as well as 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.

[0034] As shown Figure 6 in the figure, a vertical sliding rod 19 is vertically placed inside the vertical frame 15. Both ends of the sliding rod are fixedly connected to the upper and lower inner sides of the vertical frame 15. The vertical sliding rod 19 passes through the drilling motor bracket 18, enabling the drilling motor bracket 18 to freely slide vertically through the vertical sliding rod 19. Adding the vertical sliding rod 19 can further restrict the moving direction of the vertical movement of the drilling motor and improve the stability of the movement.

[0035] As shown Figure 7 in the figure, 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 restricted by the opening length of the opening 104, further improving the sliding stability of the vertical frame 15.

[0036] The illustration of Embodiment 3 is shown in the appendix Figure 8 as follows.

[0037] As shown 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 works, first, marks are made manually by drawing points or lines 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 setting positions at arbitrary intervals, 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 on the flange and achieving semi-automatic operation.

[0038] 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.

[0039] 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 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 power flange, characterized in that, It includes an outer frame (1) and an inner frame (2). The outer frame (1) and the inner frame (2) slide horizontally through 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). The inner rollers (302) or the outer rollers (301) are internally driven by a motor. The outer frame (1) includes a drilling device frame (101) and a drilling motor (11). The drilling device frame (101) is slidably connected to the drilling motor (11). The drilling motor (11) slides horizontally through a feed drive module. The drilling motor (11) drives a drill chuck (4) to rotate. A drill bit (12) is fixed at the front end of the drill chuck (4). The drill bit (12) points in the direction of the inner frame (2), and the axis of the drill bit (12) is perpendicular to the axis connection line of the outer rollers (301) at both ends of the outer frame (1).

2. The radial drilling mechanism for a wind power flange according to claim 1, characterized in that, The fastening module includes 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). The fastening screw rod (8) is threadedly connected to the fastening screw hole seat (202).

3. The radial drilling mechanism for a wind power flange according to claim 1, characterized in that, The feed drive module includes a feed motor (9), a feed screw rod (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 rod (7) to rotate. The feed screw hole seat (6) is threadedly connected to the feed screw rod (7).

4. The radial drilling mechanism for a wind power flange according to claim 1, characterized in that, 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).

5. The radial drilling mechanism for a wind power flange according to claim 1, wherein A vertical lifting module is provided between the drilling device frame (101) and the drilling motor (11). The vertical lifting module includes 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 inside the vertical frame (15) and fixedly connected to the vertical frame (15). Several groups of vertical screw rods (17) are provided inside the vertical frame (15). The vertical screw rods (17) are vertically arranged. One end of the vertical screw rod (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). The vertical screw hole seat (181) is threadedly connected to the vertical screw rod (17).

6. The radial drilling mechanism for a wind power flange according to claim 5, characterized in that, A vertical slide bar (19) is vertically placed inside the vertical frame (15). 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 power 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 power flange according to claim 5, characterized in that The bottom of the drilling device frame (101) is provided with a long strip-shaped opening (104). A pin (151) is vertically and fixedly connected to the vertical frame (15). The other end of the pin (151) is fixedly connected to a pin head (152). The pin (151) and the pin head (152) form a pin structure. The diameter of the pin (151) is slightly smaller than the width of the opening (104), and the diameter of the pin head (152) is slightly larger than the width of the opening (104).

9. The radial drilling mechanism for a wind power flange according to claim 1, characterized in that An image sensor module (20) is provided on the inner frame (2). The motors built in the inner roller (302) or the outer roller (301) are stepper motors, and the stepper motors and the image sensor module (20) are controlled by a program in a microcomputer.

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