A milling mechanism for scalable high-precision wind turbine blade end face bolt sleeve processing equipment

CN122559293APending Publication Date: 2026-08-14JIANGSU ZHONGCHENG FASTENING TECH DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-15
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0003]现有的铣削设备(数控车床)在将螺栓套加工时,需要在刀座上安装切削刀具,但是刀具的种类不同,则尺寸也不同,而在对不同的刀具安装使用时,会导致刀具与螺纹套的中心偏移,需要后续添加垫片等辅助件配合,将刀具固定,此方式会导致较大的误差,降低螺纹套的铣削精度

Benefits of technology

本发明通过将长杆转把转动,则锥齿轮二则通过锥齿轮一传动螺纹杆旋转,内螺纹架会通过内框带动升降座升降调节,则刀座会带动刀具一起调节高度,使刀具精准调节到与螺栓套同一轴心水平,此方式能够将刀具安装后微调,大幅减少误差,从而提高后续的铣削精度。

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Abstract

This invention relates to the field of milling equipment technology, and discloses a milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment. The mechanism includes a base, a spindle box fixedly connected to the top left side of the base, a control panel mounted on the front of the spindle box, and a three-jaw chuck mounted on the right output end of the spindle box. An X-axis moving mechanism and a Y-axis moving mechanism are provided on the top of the base. The mechanism also includes a milling mechanism mounted on the Y-axis moving mechanism, comprising a tool holder mounted on the right side of the three-jaw chuck. By rotating the long lever handle, the second bevel gear drives the threaded rod to rotate via the first bevel gear. The internal threaded frame then drives the lifting seat to adjust its height via the inner frame. This, in turn, adjusts the tool holder and the cutting tool together, precisely adjusting the tool to be level with the bolt sleeve on the same axis. This method allows for fine-tuning of the tool after installation, significantly reducing errors and improving subsequent milling accuracy.
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Description

Technical Field

[0001] This invention relates to the field of milling equipment technology, specifically to a milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment. Background Technology

[0002] During the layup stage of wind turbine blades, bolt sleeves are placed between the layers in advance and then integrally cast. During the processing of the bolt sleeves, milling equipment is required to process them. Since the bolt sleeves are cylindrical in shape, they are usually processed by CNC lathes.

[0003] When machining bolt sleeves, existing milling equipment (CNC lathes) requires the installation of cutting tools on the tool holder. However, different types of tools have different dimensions. When different tools are installed and used, the center of the tool and the threaded sleeve will be offset. It is necessary to add shims or other auxiliary parts to fix the tool. This method will lead to a large error and reduce the milling accuracy of the threaded sleeve. Summary of the Invention

[0004] The purpose of this invention is to provide a milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment, comprising a base, a spindle box fixedly connected to the top left side of the base, a control panel mounted on the front of the spindle box, a three-jaw chuck mounted on the right output end of the spindle box, and an X-axis moving mechanism and a Y-axis moving mechanism disposed on the top of the base, and further comprising: A milling mechanism is provided, mounted on a Y-axis moving mechanism. The milling mechanism includes a tool holder located on the right side of a three-jaw chuck. A fixed base is fixedly connected to the top of the Y-axis moving mechanism, and a lifting base is mounted on the bottom of the tool holder. The fixed base has an internal cavity, and an inner frame is fixedly connected to the bottom of the lifting base. An internal threaded bracket is fixedly connected to the bottom of the inner frame, and a stabilizing frame is fixedly connected to the inner side of the fixed base. A threaded rod is rotatably connected inside the stabilizing frame, and a first bevel gear is fixedly connected to the bottom of the threaded rod. A long lever handle is rotatably connected to the front of the fixed base, and a second bevel gear is fixedly connected to the back of the long lever handle. By rotating the long lever handle, the second bevel gear drives the threaded rod to rotate via the first bevel gear. The internal threaded bracket, through the inner frame, drives the lifting base to adjust its height, thus adjusting the tool holder and the cutting tool together. This allows the tool to be precisely adjusted to be horizontally aligned with the bolt sleeve. This method allows for fine-tuning of the tool after installation, significantly reducing errors and improving subsequent milling accuracy.

[0006] Furthermore, the second bevel gear meshes with the first bevel gear, the bottom of the threaded rod is rotatably connected to the bottom of the fixed seat, the threaded rod is threadedly connected to the internal threaded frame, the inner frame slides through the fixed seat and extends into the interior, and the front of the long rod handle is threaded with a bolt, which contacts the front of the fixed seat; after the long rod handle has rotated, the bolt on the long rod handle is locked and fixed so that the bolt contacts the surface of the fixed seat, thereby preventing the long rod handle from rotating.

[0007] Furthermore, positioning holes are provided at the four corners of the top of the lifting base, and positioning shafts are fixedly connected to the four corners of the bottom of the tool holder. Two mounting plates are fixedly connected to the bottom of the tool holder. The positioning shafts are positioned and inserted into the lifting base through the positioning holes. The bottom of the tool holder contacts the top of the lifting base, and the mounting plates are fixedly connected to the lifting base with bolts. By removing the bolts on the mounting plates, the tool holder can be lifted and disassembled, which facilitates the replacement of different tool holders and achieves the effect of expansion to meet different needs. The bottom of the tool holder is positioned and inserted into the positioning holes through the positioning shafts, and the mounting plates and the lifting base are locked and fixed with bolts, which facilitates disassembly and assembly and improves replacement efficiency.

[0008] Furthermore, a support mechanism is provided on the right side of the tool holder. The support mechanism includes a support base fixedly connected to the top of the base. A movable slide is provided in front of the support base. A rotating shaft is rotatably connected to the left side of the movable slide via a bearing. A conical clamp is installed on the left side of the rotating shaft. Pushing the movable slide to the left makes the conical clamp fit tightly against the bolt sleeve. Then, turning the internal thread knob clockwise locks the movable slide in place. At this time, the conical clamp and the rotating shaft cooperate to assist in supporting the bolt sleeve, ensuring that the bolt sleeve is more stable when rotating and reducing swaying. This method allows for quick adjustment by pushing and pulling, and the operation is simple and convenient.

[0009] Furthermore, a sliding groove is provided on the top of the support base, and two sliding rods are fixedly connected to the inner side of the support base. The sliding rods slide through the movable slide block, and a threaded shaft is fixedly connected to the top of the movable slide block. An internal threaded knob is threadedly connected to the outer surface of the threaded shaft. The threaded shaft is set in the sliding groove, and the bottom of the internal threaded knob contacts the top of the support base. Since the threaded shaft is set in the sliding groove, it will not affect the movement of the movable slide block, and the movable slide block can be easily locked and fixed after it moves.

[0010] Furthermore, an insertion hole is provided on the left side of the rotating shaft, and an insertion shaft is fixedly connected to the right side of the tapered clamping block. Flanges are fixedly connected to the outer surfaces of both the tapered clamping block and the rotating shaft. The insertion shaft is inserted into the rotating shaft through the insertion hole, and the tapered clamping block is fixedly connected to the rotating shaft by bolts. By removing the bolts on the flange, the tapered clamping block can be removed, making it convenient to replace different tapered clamping blocks to meet expansion needs and different support requirements.

[0011] The present invention has the following beneficial effects: This invention rotates the long lever throttle, which in turn drives the bevel gear two to rotate the threaded rod through the bevel gear one. The internal threaded frame then drives the lifting seat to rise and fall through the inner frame, which in turn drives the tool holder to adjust the height of the tool. This allows the tool to be precisely adjusted to be level with the bolt sleeve on the same axis. This method allows for fine-tuning of the tool after installation, greatly reducing errors and thus improving the subsequent milling accuracy.

[0012] This invention allows the tool holder to be lifted and disassembled by removing the bolts on the mounting plate, facilitating the replacement of different tool holders and achieving an expansion effect to meet different needs. Furthermore, the bottom of the tool holder is positioned and inserted into the positioning hole via a positioning shaft, and the mounting plate and lifting seat are locked and fixed with bolts, which facilitates disassembly and assembly and improves replacement efficiency.

[0013] This invention pushes the movable slide to the left, so that the conical clamping block is in close contact with the bolt sleeve. Then, the internal thread knob is turned clockwise to lock and fix the movable slide. At this time, the conical clamping block and the rotating shaft cooperate to assist in supporting the bolt sleeve, ensuring that the bolt sleeve is more stable when rotating and reducing swaying. This method can be quickly adjusted by pushing and pulling, and the operation is simple and convenient.

[0014] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the top structure of the base of the present invention; Figure 3 This is a schematic cross-sectional view of the right side of the fixing base of the present invention; Figure 4 This is a schematic diagram of the internal structure of the fixing base of the present invention; Figure 5 This is a schematic diagram of the separate structure of the tool holder and the lifting seat of the present invention; Figure 6 This is a schematic diagram of the overall structure of the support base of the present invention; Figure 7 This is a schematic diagram of the separation structure of the conical clamping block and the rotating shaft of the present invention; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Base; 11. Spindle box; 12. Control panel; 13. Three-jaw chuck; 14. X-axis moving mechanism; 15. Y-axis moving mechanism; 2. Milling mechanism; 21. Tool holder; 22. Fixed seat; 221. Stabilizer; 222. Threaded rod; 223. Bevel gear one; 224. Long rod throttle; 225. Bevel gear two; 23. Lifting seat; 231. Inner frame; 232. Internal threaded bracket; 24. Positioning hole; 25. Positioning shaft; 26. Mounting plate; 3. Support mechanism; 31. Support seat; 311. Slide groove; 312. Slide rod; 32. Moving slide; 321. Threaded shaft; 322. Internal threaded knob; 33. Rotating shaft; 331. Conical clamp; 332. Insert shaft; 333. Insertion hole; 334. Flange. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-7 As shown, this invention is a milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment, including a base 1, a spindle box 11 fixedly connected to the top left side of the base 1, a control panel 12 mounted on the front of the spindle box 11, a three-jaw chuck 13 mounted on the right output end of the spindle box 11, an X-axis moving mechanism 14 and a Y-axis moving mechanism 15 provided on the top of the base 1, and further including: Milling mechanism 2 is mounted on Y-axis moving mechanism 15. Milling mechanism 2 includes a tool holder 21 located on the right side of three-jaw chuck 13. A fixed base 22 is fixedly connected to the top of Y-axis moving mechanism 15. A lifting base 23 is mounted on the bottom of tool holder 21. The fixed base 22 has an internal cavity. An inner frame 231 is fixedly connected to the bottom of lifting base 23. An internal threaded bracket 232 is fixedly connected to the bottom of inner frame 231. A stabilizing bracket 221 is fixedly connected to the inside of fixed base 22. A threaded rod 222 is rotatably connected inside stabilizing bracket 221. The bottom of threaded rod 222 is fixedly connected to... The bevel gear 223 and the fixed base 22 are rotatably connected to the front of the long rod handle 224, and the long rod handle 224 is fixedly connected to the back of the bevel gear 225. By rotating the long rod handle 224, the bevel gear 225 drives the threaded rod 222 to rotate through the bevel gear 223. The internal threaded frame 232 will drive the lifting seat 23 to rise and fall through the inner frame 231. The tool holder 21 will drive the tool to adjust its height together, so that the tool is precisely adjusted to be horizontal with the same axis as the bolt sleeve. This method allows for fine adjustment of the tool after installation, greatly reducing errors and improving the subsequent milling accuracy.

[0019] The second bevel gear 225 meshes with the first bevel gear 223. The bottom of the threaded rod 222 is rotatably connected to the bottom of the fixed seat 22. The threaded rod 222 is threadedly connected to the inner threaded frame 232. The inner frame 231 slides through the fixed seat 22 and extends into the interior. The front of the long rod handle 224 is threaded with bolts. The bolts on the long rod handle 224 are in contact with the front of the fixed seat 22. After the long rod handle 224 is rotated, the bolts on the long rod handle 224 are locked and fixed, so that the bolts are in contact with the surface of the fixed seat 22, thereby preventing the long rod handle 224 from rotating.

[0020] The lifting base 23 has positioning holes 24 at each of its four top corners, and the tool holder 21 has positioning shafts 25 fixedly connected to each of its four bottom corners. Two mounting plates 26 are fixedly connected to the bottom of the tool holder 21. The positioning shafts 25 are positioned and inserted into the lifting base 23 through the positioning holes 24, and the bottom of the tool holder 21 contacts the top of the lifting base 23. The mounting plates 26 are fixedly connected to the lifting base 23 by bolts. By removing the bolts on the mounting plates 26, the tool holder 21 can be lifted and disassembled, which facilitates the replacement of different tool holders 21 in the future, achieving the effect of expansion and meeting different needs. The bottom of the tool holder 21 is positioned and inserted into the positioning holes 24 through the positioning shafts 25, and the mounting plates 26 and the lifting base 23 are locked and fixed with bolts, which facilitates disassembly and assembly and improves replacement efficiency.

[0021] A support mechanism 3 is provided on the right side of the tool holder 21. The support mechanism 3 includes a support base 31 fixedly connected to the top of the base 1. A movable slide 32 is provided in front of the support base 31. A rotating shaft 33 is rotatably connected to the left side of the movable slide 32 via a bearing. A conical clamp 331 is installed on the left side of the rotating shaft 33. Push the movable slide 32 to the left so that the conical clamp 331 is tightly attached to the bolt sleeve. Then, rotate the internal thread knob 322 clockwise to lock the movable slide 32. At this time, the conical clamp 331 and the rotating shaft 33 cooperate to assist in supporting the bolt sleeve, ensuring that the bolt sleeve is more stable when rotating and reducing swaying. This method can be quickly adjusted by pushing and pulling, and the operation is simple and convenient.

[0022] The support base 31 has a groove 311 on its top. Two slide rods 312 are fixedly connected to the inner side of the support base 31. The slide rods 312 slide through the movable slide block 32. A threaded shaft 321 is fixedly connected to the top of the movable slide block 32. An internal threaded knob 322 is threadedly connected to the outer surface of the threaded shaft 321. The threaded shaft 321 is set in the groove 311. The bottom of the internal threaded knob 322 contacts the top of the support base 31. Since the threaded shaft 321 is set in the groove 311, it will not affect the movement of the movable slide block 32. After the movable slide block 32 moves, it can be locked and fixed smoothly.

[0023] A socket 333 is provided on the left side of the rotating shaft 33, and a socket 332 is fixedly connected to the right side of the tapered clamp 331. A flange 334 is fixedly connected to the outer surface of both the tapered clamp 331 and the outer surface of the rotating shaft 33. The socket 332 is inserted into the rotating shaft 33 through the socket 333, and the tapered clamp 331 is fixedly connected to the rotating shaft 33 by bolts. By removing the bolts on the flange 334, the tapered clamp 331 can be removed, making it easy to replace different tapered clamps 331 to meet expansion needs and different support requirements.

[0024] In use, the bolt set for the end face of the wind turbine blade is clamped and fixed on the three-jaw chuck 13. Then, the required cutting tool is fixed on the tool holder 21, and the height of the lifting seat 23 is adjusted according to the position of the cutting tool. By rotating the long rod handle 224, the second bevel gear 225 is driven to rotate. The second bevel gear 225 then drives the threaded rod 222 to rotate through the first bevel gear 223. Since the inner threaded frame 232 is threadedly connected to the threaded rod 222, the inner threaded frame 232 will drive the lifting seat 23 to rise and fall through the inner frame 231. The inner frame 231 slides inside the fixed seat 22, so the tool holder 21 will drive the cutting tool to adjust its height, so that the cutting tool is precisely adjusted to the position of the blade. The bolts are aligned horizontally on the same axis to improve subsequent milling accuracy. After adjustment, the bolts on the long lever handle 224 are tightened to make the bolts contact the surface of the fixed seat 22, thus preventing the long lever handle 224 from rotating. This method allows for fine-tuning after tool installation, significantly reducing errors. Meanwhile, the bottom of the tool holder 21 is positioned and inserted into the positioning hole 24 via the positioning shaft 25, and the mounting plate 26 is locked and fixed to the lifting seat 23 via bolts. Therefore, the tool holder 21 is detachable. By removing the bolts on the mounting plate 26, the tool holder 21 can be lifted and disassembled, facilitating the replacement of different tool holders 21 and achieving an expansion effect to meet different needs.

[0025] When the bolt sleeve is long, the internal thread knob 322 can be turned counterclockwise to release the fixation of the movable slide 32. Then, the movable slide 32 is pushed to the left, and the movable slide 32 slides on the slide rod 312, making the conical clamp 331 fit tightly against the bolt sleeve. Then, the internal thread knob 322 is turned clockwise to lock the movable slide 32. At this time, the conical clamp 331 cooperates with the rotating shaft 33 to assist in supporting the bolt sleeve, ensuring that the bolt sleeve is more stable when rotating and reducing swaying. This method can be quickly adjusted by pushing and pulling, and the operation is simple and convenient. At the same time, it is detachable. By removing the bolts on the flange 334, the conical clamp 331 can be taken out, making it easy to replace different conical clamps 331 to meet the expansion needs and different support requirements.

[0026] Finally, the spindle box 11 is started by the control panel 12 to drive the three-jaw chuck 13 to rotate, and the bolt sleeve will rotate accordingly. Since the rotating shaft 33 is rotatably connected to the movable slide 32 through the bearing, it will not affect the rotation of the bolt sleeve. At the same time, the cooperation of the X-axis moving mechanism 14 and the Y-axis moving mechanism 15 drives the tool to move, and milling work can be performed.

[0027] It should be noted that the control of the spindle box 11, the X-axis moving mechanism 14 and the Y-axis moving mechanism 15 in this application can all be achieved by using the program set in the control panel 12 and inputting relevant parameters as needed for automated control. This control method can be achieved using existing technologies, such as PLC.

[0028] 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 milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment, comprising a base (1), a spindle box (11) fixedly connected to the top left side of the base (1), a control panel (12) mounted on the front of the spindle box (11), a three-jaw chuck (13) mounted on the right output end of the spindle box (11), and an X-axis moving mechanism (14) and a Y-axis moving mechanism (15) provided on the top of the base (1), characterized in that, Also includes: A milling mechanism (2) is set on a Y-axis moving mechanism (15). The milling mechanism (2) includes a tool holder (21) set on the right side of a three-jaw chuck (13). A fixed seat (22) is fixedly connected to the top of the Y-axis moving mechanism (15). A lifting seat (23) is installed at the bottom of the tool holder (21). The fixed seat (22) is hollow inside. An inner frame (231) is fixedly connected to the bottom of the lifting seat (23). An internal threaded frame (232) is fixedly connected to the bottom of the inner frame (231). A stabilizing frame (221) is fixedly connected to the inside of the fixed seat (22). A threaded rod (222) is rotatably connected inside the stabilizing frame (221). A bevel gear (223) is fixedly connected to the bottom of the threaded rod (222). A long rod handle (224) is rotatably connected to the front of the fixed seat (22). A bevel gear (225) is fixedly connected to the back of the long rod handle (224).

2. The milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment according to claim 1, characterized in that: The second bevel gear (225) meshes with the first bevel gear (223), the bottom of the threaded rod (222) is rotatably connected to the bottom of the fixed seat (22), and the threaded rod (222) is threadedly connected to the internal threaded frame (232).

3. The milling mechanism of the expandable high-precision wind turbine blade end face bolt sleeve processing equipment according to claim 2, characterized in that: The inner frame (231) slides through the fixed seat (22) and extends into the interior. The long rod handle (224) has a bolt threaded on its front side, and the bolt on the long rod handle (224) is in contact with the front side of the fixed seat (22).

4. The milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment according to claim 3, characterized in that: The lifting seat (23) has positioning holes (24) at the four corners of its top, and the tool holder (21) has positioning shafts (25) fixedly connected to the four corners of its bottom. The tool holder (21) has two mounting plates (26) fixedly connected to its bottom.

5. The milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment according to claim 4, characterized in that: The positioning shaft (25) is positioned and inserted into the lifting seat (23) through the positioning hole (24), the bottom of the knife holder (21) is in contact with the top of the lifting seat (23), and the mounting plate (26) is fixedly connected to the lifting seat (23) by bolts.

6. The milling mechanism of the expandable high-precision wind turbine blade end face bolt sleeve processing equipment according to claim 2, characterized in that: A support mechanism (3) is provided on the right side of the tool holder (21). The support mechanism (3) includes a support seat (31) fixedly connected to the top of the base (1). A movable slide (32) is provided in front of the support seat (31). A rotating shaft (33) is rotatably connected to the left side of the movable slide (32) via a bearing. A conical clamp (331) is installed on the left side of the rotating shaft (33).

7. The milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment according to claim 6, characterized in that: The top of the support base (31) is provided with a sliding groove (311), and two sliding rods (312) are fixedly connected to the inner side of the support base (31). The sliding rods (312) slide through the movable slide (32).

8. The milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment according to claim 7, characterized in that: The top of the movable slide (32) is fixedly connected to a threaded shaft (321), and the outer surface of the threaded shaft (321) is threaded with an internal thread knob (322). The threaded shaft (321) is set in the slide groove (311), and the bottom of the internal thread knob (322) is in contact with the top of the support seat (31).

9. The milling mechanism for an expandable high-precision wind turbine blade end face bolt sleeve processing equipment according to claim 6, characterized in that: The rotating shaft (33) has an insertion hole (333) on the left side, and the tapered clamp (331) is fixedly connected to the insertion shaft (332) on the right side. The outer surface of the tapered clamp (331) and the outer surface of the rotating shaft (33) are both fixedly connected to the flange (334). The insertion shaft (332) is inserted into the rotating shaft (33) through the insertion hole (333), and the tapered clamp (331) is fixedly connected to the rotating shaft (33) by bolts.