Rough and fine milling process of high torque wind turbine cross unit

Abstract

The present invention relates to a rough and fine milling process for a high-torque wind power cross unit. The front side of the wind power cross unit frame is facing upward, and each supporting end of the wind power cross unit frame is correspondingly installed on a fixing component, and each supporting end of the wind power cross unit frame is fixed by the fixing component. A positioning device is placed on a milling machine together with the wind power cross unit frame, and then the blank surfaces of each supporting end of the wind power cross unit frame are leveled. Then, one side of the blank surface of each supporting end is milled by the milling machine, and the positioning device is removed. The back side of the wind power cross unit frame is facing upward and clamped again, and then the other side of the blank surface of each supporting end is milled by the milling machine, and rough and fine milling is completed to adapt to different wind power cross unit frames of different sizes. By pushing the abutting ends in various directions, each supporting end of the wind power cross unit frame is abutted, clamped and fixed, and further fixed, and adapted to the supporting ends of different wind power cross unit frames, so as to maintain stable clamping.

Description

Technical Field

[0001] The invention relates to the technical field of milling processing, and in particular to a rough and fine milling process for a high-torque wind power cross unit. Background Art

[0002] Milling machine is a widely used machine tool. It can process planes (horizontal and vertical surfaces), grooves (keyways, T-slots, dovetail grooves, etc.), toothed parts (gears, spline shafts, sprockets), spiral surfaces (threads, spiral grooves) and various curved surfaces. In addition, it can also be used for machining the surface of rotating bodies, inner holes and cutting.

[0003] The patent document with the publication number CN108405938A discloses a mixed processing equipment for rough milling and fine milling of workpieces, including a frame, on which a rough milling component and a fine milling component are arranged, and a first product fixing mechanism corresponding to the rough milling component and a second product fixing mechanism corresponding to the fine milling component are arranged at the bottom of the frame, and a guide rail is arranged between the first product fixing mechanism and the second product fixing mechanism, and a mobile driving mechanism for controlling the rotation of the first product fixing mechanism and the second product fixing mechanism is arranged on the guide rail. The first product fixing mechanism and the second product fixing mechanism are provided with product installation stations, and the first product fixing mechanism and the second product fixing mechanism can be controlled to rotate by moving the mobile driving mechanism on the guide rail, so as to facilitate the rough milling tool and the fine milling tool to process the product below. The equipment realizes the simultaneous rough milling and fine milling of products at multiple product stations, thereby improving the processing efficiency.

[0004] The above device has the following shortcomings: when in use, the above device cannot adapt and adjust the high-torque wind power cross unit, and the scope of application is small; and when in use, the above device cannot stably clamp the high-torque wind power cross unit, and the stability is low. Summary of the invention

[0005] The purpose of the present invention is to provide a high-torque wind power cross unit roughing and finishing milling process to address the above-mentioned problems and shortcomings, thereby improving the overall work efficiency.

[0006] The technical problems solved by the present invention are:

[0007] (1) The above device cannot be used to adapt and adjust the high-torque wind power cross unit, and its application scope is small;

[0008] (2) When in use, the above device cannot stably clamp the high-torque wind power cross unit and has low stability.

[0009] The purpose of the present invention can be achieved by the following technical solution: a high torque wind power cross unit roughing and finishing milling process, the process comprising the following steps:

[0010] Step 1: Adjust the position of each fixed component on the clamping tool according to the size and shape of the wind power cross unit frame;

[0011] Step 2: With the front side of the wind turbine cross unit frame facing upward, each support end of the wind turbine cross unit frame is correspondingly mounted on the fixing assembly, and each support end of the wind turbine cross unit frame is fixed by the fixing assembly;

[0012] Step 3: Place the positioning device together with the wind turbine cross unit frame on a milling machine, then level the blank surfaces of each support end of the wind turbine cross unit frame, and then mill one side of the blank surface of each support end through the milling machine;

[0013] Step 4: Remove the positioning device, turn the back of the wind turbine cross unit frame upward and clamp it again, then use the milling machine to mill the other side of the blank surface of each support end and complete the rough and fine milling process.

[0014] As a further solution of the invention, in step three, the blank surfaces of each support end of the wind turbine cross unit frame are leveled so that the two-point jump of each support end during milling is controlled within one millimeter, and the height difference of the blank surface between the first support end and the third support end is 428 millimeters through the positioning device.

[0015] As a further solution of the invention, in step four, the two-point jump of each support end is controlled within 2% of a millimeter by leveling, and the height difference of the blank surface between the first support end and the third support end is 428 millimeters.

[0016] As a further solution of the invention, in step one, a C-shaped positioning frame is moved on the supporting frame, and each fixing component is moved on each supporting cross bar, and each fixing component is fixed by threaded connection of the positioning screw and the positioning nut, so as to adapt to different wind power cross unit frames.

[0017] As a further solution of the invention, in step two, the second screw is rotated by the second rotating wheel to move the support slider, and then the position of each second support plate is moved so that the second support plates correspond to the through openings on each support end of the wind turbine cross unit frame, and then each support end of the wind turbine cross unit frame is placed on the support blocks of each fixed component, and the height of the first telescopic rod is adjusted.

[0018] As a further solution of the invention, in step two, by rotating the third rotating wheel, the third screw is driven to rotate the second telescopic cylinder, thereby pushing the two mounting seats together, and then pushing the connecting rod to rotate, pushing the outer support of the pushing seat, so that the pushing seat is abutted and fixed against the inner side wall of the through opening on each support end of the wind power cross unit frame, thereby fixing each support end of the wind power cross unit frame.

[0019] As a further solution of the invention, in step two, by rotating the first rotating wheel, rotating the first screw rod, pushing the first telescopic cylinder, and pushing the abutting end, the abutting ends in various directions are pushed to abut, clamp and fix each supporting end of the wind power cross unit frame, thereby further fixing it and adapting it to the supporting ends of different wind power cross unit frames.

[0020] Beneficial effects of the present invention:

[0021] (1) Adjust the position of each fixing component according to the size and shape of the wind turbine cross unit frame, turn the front of the wind turbine cross unit frame upward, install each support end of the wind turbine cross unit frame on the fixing component accordingly, fix each support end of the wind turbine cross unit frame by the fixing component, place the positioning device together with the wind turbine cross unit frame on the milling machine, then level the blank surfaces of each support end of the wind turbine cross unit frame, then mill one side of the blank surface of each support end by the milling machine, remove the positioning device, turn the back of the wind turbine cross unit frame upward and clamp it again, then mill the other side of the blank surface of each support end by the milling machine, and complete the rough and fine milling process to adapt to different wind turbine cross unit frames of different sizes;

[0022] (2) Rotate the second screw rod by the second rotating wheel to move the support slider, and then move the position of each second support plate, so that the second support plate corresponds to the through opening on each support end of the wind power cross unit frame, and then place each support end of the wind power cross unit frame on the support block of each fixed component, and adjust the height of the first telescopic rod, and drive the third screw rod by rotating the third rotating wheel to rotate the second telescopic cylinder, so as to push the two mounting seats together, and then push the connecting rod to rotate, and push the outer support of the pushing seat, so that the pushing seat and the inner side wall of the through opening on each support end of the wind power cross unit frame are abutted and fixed, thereby fixing each support end of the wind power cross unit frame, and rotating the first rotating wheel, rotating the first screw rod, pushing the first telescopic cylinder, and pushing the abutting end, so as to abut and clamp each support end of the wind power cross unit frame by pushing the abutting end in each direction, and further fix it, and adapt to different support ends of the wind power cross unit frame, so as to maintain stable clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0024] Figure 1 It is a flowchart of the present invention;

[0025] Figure 2 It is the front view of the overall structure of the present invention;

[0026] Figure 3 is a top view of the fixing assembly of the present invention;

[0027] Figure 4 is a side view of the fixing assembly of the present invention;

[0028] Figure 5 It is a front view of the first telescopic cylinder of the present invention;

[0029] Figure 6 It is a side view of the overall structure of the third support tube of the present invention;

[0030] Figure 7 It is a side view of the internal structure of the third support tube of the present invention;

[0031] Figure 8 A top view of the overall structure of the wind power cross unit frame of the present invention;

[0032] Fig. 9 It is a side view of the overall structure of the wind power cross unit frame of the present invention;

[0033] Fig.10 This is a front view of the overall structure of the wind power cross unit frame of the present invention;

[0034] In the figure: 1, support frame; 2, C-shaped positioning frame; 3, support cross bar; 4, fixing assembly; 5, wind power cross unit frame; 500, cross frame; 501, first support end; 502, second support end; 503, third support end; 504, fourth support end; 6, through slide; 7, first support plate; 8, positioning screw; 9, positioning clamp; 10, positioning nut; 11, first telescopic rod; 12, mounting plate; 13, support slide rail; 14, support slide seat; 15 , second telescopic rod; 16, first support tube; 17, first telescopic tube; 18, first screw; 19, first rotating wheel; 20, abutment end; 21, second support tube; 22, second screw; 23, second rotating wheel; 24, second support plate; 25, support slider; 26, C-shaped support frame; 27, third rotating wheel; 28, third support tube; 29, support block; 30, second telescopic tube; 31, third screw; 32, mounting seat; 33, connecting rod; 34, push seat. DETAILED DESCRIPTION

[0035] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0036] See also Figure 1-9 Shown: High torque wind power cross unit roughing and finishing milling process, the process includes the following steps:

[0037] Step 1: Adjust the position of each fixing component 4 on the clamping tool according to the size and shape of the wind power cross unit frame 5;

[0038] Step 2: With the front side of the wind turbine cross unit frame 5 facing upward, each supporting end of the wind turbine cross unit frame 5 is correspondingly mounted on the fixing assembly 4, and each supporting end of the wind turbine cross unit frame 5 is fixed by the fixing assembly 4;

[0039] Step 3: Place the positioning device together with the wind turbine cross unit frame 5 on a milling machine, then level the blank surfaces of each support end of the wind turbine cross unit frame 5, and then mill one side of the blank surface of each support end by the milling machine;

[0040] Step 4: Remove the positioning device, turn the back of the wind turbine cross unit frame 5 upward and clamp it again, then use a milling machine to mill the other side of the blank surface of each support end, and complete the rough and fine milling process.

[0041] In step three, the rough surfaces of each support end of the wind turbine cross unit frame 5 are leveled so that the two-point jump of each support end during milling is controlled within one millimeter, and the height difference of the rough surface between the first support end 501 and the third support end 503 is 428 millimeters through the positioning device.

[0042] In step 4, the two-point jump of each support end is controlled within 2% of a millimeter by leveling, and the height difference of the blank surface between the first support end 501 and the third support end 503 is 428 millimeters.

[0043] In step one, the C-shaped positioning frame 2 is moved on the supporting frame 1, and each fixing component 4 is moved on each supporting cross bar 3. Each fixing component 4 is fixed by threaded connection of the positioning screw 8 and the positioning nut 10, so as to be compatible with different wind power cross unit frames 5.

[0044] In step two, the second screw rod 22 is rotated by the second rotating wheel 23 to move the support slider 25, thereby moving the position of each second support plate 24 so that the second support plate 24 corresponds to the through opening on each support end of the wind power cross unit frame 5, and then the each support end of the wind power cross unit frame 5 is placed on the support block 29 of each fixed component 4, and the height of the first telescopic rod 11 is adjusted.

[0045] In step 2, by rotating the third rotating wheel 27, the third screw rod 31 is driven to rotate the second telescopic cylinder 30, thereby pushing the two mounting seats 32 together, and then pushing the connecting rod 33 to rotate, pushing the push seat 34 outward, so that the push seat 34 is abutted and fixed with the inner side wall of the through opening on each supporting end of the wind power cross unit frame 5, thereby fixing each supporting end of the wind power cross unit frame 5.

[0046] In step two, by rotating the first rotating wheel 19, rotating the first screw rod 18, pushing the first telescopic cylinder 17, and pushing the abutment end 20, each supporting end of the wind power cross unit frame 5 is abutted, clamped and fixed by pushing the abutment end 20 in each direction, and further fixed and adapted to different supporting ends of the wind power cross unit frame 5.

[0047] The clamping tooling includes a support frame 1, two C-shaped positioning frames 2 are installed on both sides of the support frame 1, two support cross bars 3 are arranged in the middle of the support frame 1, each support cross bar 3 corresponds to each pair of C-shaped positioning frames 2, the support cross bars 3 and the C-shaped positioning frames 2 are connected correspondingly, a through slide groove 6 is opened in the middle of the support cross bars 3, and a fixing component 4 for fixing the wind power cross unit frame 5 is installed on each support cross bar 3;

[0048] The wind power cross unit frame 5 includes a cross frame 500, and the cross frame 500 is provided with four support ends, and the cross frame 500 is respectively provided with a first support end 501, a second support end 502, a third support end 503 and a fourth support end 504;

[0049] The fixing assembly 4 includes a first support plate 7, both sides of the lower part of the first support plate 7 are fixedly connected with positioning screws 8, and the positioning screws 8 are movably penetrated through the slide groove 6, and a positioning clamping plate 9 is provided below the first support plate 7, and the positioning screws 8 are movably penetrated through the positioning clamping plate 9, and the lower end of the positioning screw 8 is threadedly sleeved with a positioning nut 10, and the positioning nut 10 is threadedly sleeved on the positioning screw 8 to push the positioning clamping plate 9, and then cooperate with the first support plate 7 to clamp the supporting cross bar 3, so as to determine the position of the fixing assembly 4 on the supporting cross bar 3;

[0050] A first telescopic rod 11 is installed on the upper part of the first support plate 7, and a mounting plate 12 is fixedly connected to the telescopic end of the first telescopic rod 11. The mounting plate 12 is square, and support rails 13 are fixedly connected to the four sides of the mounting plate 12. The support rails 13 are slidably connected to support slides 14, and a second telescopic rod 15 is installed on the support slide 14;

[0051] A side wall of the C-shaped positioning frame 2, an outer side wall of the first telescopic rod 11 and an outer side wall of the second telescopic rod 15 are all threadedly provided with a limit bolt for limiting position;

[0052] The telescopic end of the second telescopic rod 15 is installed with a first support tube 16, at least two first support tubes 16 are provided and arranged side by side, one end of the first support tube 16 close to the mounting plate 12 is movably sleeved with a first telescopic tube 17, one end of the first telescopic tube 17 located in the first support tube 16 is threadedly sleeved with a first screw rod 18, one end of the first telescopic tube 17 located outside the first support tube 16 is fixedly connected with an abutment end 20, one end of the first screw rod 18 passes through one end of the first support tube 16 and is rotatably connected to the first support tube 16, and one end of the first screw rod 18 located outside the first support tube 16 is fixedly sleeved with a first rotating wheel 19;

[0053] The mounting plate 12 is a square structure, and a second support cylinder 21 is mounted on the upper surface of the mounting plate 12. There are four second support cylinders 21, and the four second support cylinders 21 are evenly distributed at equal angles. A through groove is opened on the upper surface of the second support cylinder 21. A second screw rod 22 is rotatably connected in the second support cylinder 21. One end of the second screw rod 22 penetrates the second support cylinder 21, and one end of the second screw rod 22 is fixedly connected to a second rotating wheel 23. A support slider 25 is movably mounted on the second support cylinder 21.

[0054] The second screw rod 22 threadably penetrates the support slider 25, and the support slider 25 is slidably connected to the second support cylinder 21, a C-shaped support frame 26 is installed on the support slider 25, a third support cylinder 28 is installed on the upper part of the C-shaped support frame 26, a support block 29 is fixedly sleeved on the outer periphery of the third support cylinder 28 and located above the C-shaped support frame 26, a third screw rod 31 is movably penetrated in the middle part of the C-shaped support frame 26, the lower part of the third screw rod 31 is rotatably connected to the C-shaped support frame 26, a third rotating wheel 27 is installed at the lower end of the third screw rod 31 and located in the C-shaped support frame 26, the upper part of the third screw rod 31 extends into the third support cylinder 28, and the third The upper threaded sleeve of the three screws 31 is connected with the second telescopic cylinder 30, the upper part of the second telescopic cylinder 30 movably passes through the third support cylinder 28, the top of the second telescopic cylinder 30 is fixedly connected with the second support plate 24, the upper end periphery of the second telescopic cylinder 30 and the middle periphery of the third support cylinder 28 are fixedly connected with a plurality of mounting seats 32, the mounting seats 32 on the upper and lower sides correspond to each other one by one, and the mounting seats 32 on the upper and lower sides are evenly distributed at equal angles, two connecting rods 33 are provided between the corresponding two mounting seats 32, and a push seat 34 is provided between each pair of connecting rods 33, and the two ends of the connecting rod 33 are hinged to the mounting seat 32 and the push seat 34 respectively.

[0055] When the present invention is in use, the staff adjusts the position of each fixing component 4 according to the size and shape of the wind power cross unit frame 5, puts the front side of the wind power cross unit frame 5 upward, and installs each supporting end of the wind power cross unit frame 5 on the fixing component 4 accordingly, fixes each supporting end of the wind power cross unit frame 5 by the fixing component 4, places the positioning device together with the wind power cross unit frame 5 on the milling machine, then levels each supporting end blank surface of the wind power cross unit frame 5, then mills one side blank surface of each supporting end by the milling machine, removes the positioning device, puts the back side of the wind power cross unit frame 5 upward and clamps it again, then mills the other side blank surface of each supporting end by the milling machine, and completes the rough and fine milling process, so as to adapt to different wind power cross unit frames 5 of different sizes;

[0056] The second screw rod 22 is rotated by the second rotating wheel 23 to move the support slider 25, thereby moving the position of each second support plate 24, so that the second support plate 24 corresponds to the through opening on each support end of the wind power cross unit frame 5, and then each support end of the wind power cross unit frame 5 is placed on the support block 29 of each fixing component 4, and the height of the first telescopic rod 11 is adjusted, and the third screw rod 31 is driven by rotating the third rotating wheel 27 to rotate the second telescopic cylinder 30, thereby pushing the two mounting seats 32 together, and then pushing the connecting rod 33 Rotate to push the outer support of the pushing seat 34, so that the pushing seat 34 is abutted and fixed with the inner side wall of the through opening on each support end of the wind power cross unit frame 5, thereby fixing each support end of the wind power cross unit frame 5, and by rotating the first rotating wheel 19, rotating the first screw rod 18, pushing the first telescopic cylinder 17, and pushing the abutting end 20, thereby pushing the abutting end 20 in each direction to abut, clamp and fix each support end of the wind power cross unit frame 5, further fix it, and adapt to different support ends of the wind power cross unit frame 5, so as to maintain stable clamping.

[0057] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. High torque wind power cross unit roughing and finishing milling process, characterized in that: The process includes the following steps: Step 1: adjusting the position of each fixing component (4) on the clamping tool according to the size and shape of the wind power cross unit frame (5); Step 2: Place the front side of the wind turbine cross unit frame (5) upwards, install the supporting ends of the wind turbine cross unit frame (5) on the fixing assembly (4) accordingly, and fix the supporting ends of the wind turbine cross unit frame (5) by using the fixing assembly (4); Step 3: placing the positioning device together with the wind turbine cross unit frame (5) on a milling machine, then leveling the blank surfaces of each support end of the wind turbine cross unit frame (5), and then milling one side of the blank surface of each support end by the milling machine; Step 4: Remove the positioning device, turn the back of the wind turbine cross unit frame (5) upward and clamp it again, then use a milling machine to mill the other side of the blank surface of each support end, and complete the rough and fine milling process; The clamping tool comprises a support frame (1), two C-shaped positioning frames (2) are installed on both sides of the support frame (1), two support cross bars (3) are arranged in the middle of the support frame (1), each support cross bar (3) corresponds to each pair of C-shaped positioning frames (2), the support cross bars (3) and the C-shaped positioning frames (2) are connected correspondingly, a through slide groove (6) is opened in the middle of the support cross bars (3), and a fixing component (4) for fixing the wind power cross unit frame (5) is installed on each support cross bar (3); The wind power cross unit frame (5) comprises a cross frame (500), the cross frame (500) is provided with four support ends, and the cross frame (500) is respectively provided with a first support end (501), a second support end (502), a third support end (503) and a fourth support end (504); The fixing assembly (4) comprises a first support plate (7), both sides of the lower part of the first support plate (7) are fixedly connected with positioning screws (8), and the positioning screws (8) are movably inserted into the through-slide groove (6), a positioning clamping plate (9) is provided below the first support plate (7), the positioning screws (8) are movably inserted into the positioning clamping plate (9), and a positioning nut (10) is threadedly sleeved on the lower end of the positioning screw (8), and the positioning nut (10) is threadedly sleeved on the positioning screw (8) to push the positioning clamping plate (9), and then cooperate with the first support plate (7) to clamp the supporting cross bar (3), thereby determining the position of the fixing assembly (4) on the supporting cross bar (3); A first telescopic rod (11) is installed on the upper part of the first support plate (7); the telescopic end of the first telescopic rod (11) is fixedly connected to a mounting plate (12); the mounting plate (12) is square, and the mounting plate (12) is fixedly connected to support rails (13) on all four sides; the support rails (13) are slidably connected to support slide seats (14); and the second telescopic rod (15) is installed on the support slide seat (14); A side wall of the C-shaped positioning frame (2), an outer side wall of the first telescopic rod (11) and an outer side wall of the second telescopic rod (15) are all threadedly provided with a limit bolt for limiting position; A first support tube (16) is installed at the telescopic end of the second telescopic rod (15), at least two first support tubes (16) are provided and arranged side by side, one end of the first support tube (16) close to the mounting plate (12) is movably sleeved with a first telescopic tube (17), one end of the first telescopic tube (17) located inside the first support tube (16) is threadedly sleeved with a first screw rod (18), one end of the first telescopic tube (17) located outside the first support tube (16) is fixedly connected to an abutment end (20), one end of the first screw rod (18) passes through one end of the first support tube (16) and is rotatably connected to the first support tube (16), and one end of the first screw rod (18) located outside the first support tube (16) is fixedly sleeved with a first rotating wheel (19); The mounting plate (12) is a square structure. A second support tube (21) is mounted on the upper surface of the mounting plate (12). Four second support tubes (21) are provided. The four second support tubes (21) are evenly distributed at equal angles. A through groove is provided on the upper surface of the second support tube (21). A second screw rod (22) is rotatably connected inside the second support tube (21). One end of the second screw rod (22) passes through the second support tube (21). One end of the second screw rod (22) is fixedly connected to a second rotating wheel (23). A support slider (25) is movably mounted on the second support tube (21). The second screw rod (22) is threadedly penetrated through the support slider (25), and the support slider (25) is slidably connected to the second support tube (21); a C-shaped support frame (26) is installed on the support slider (25); a third support tube (28) is installed on the upper part of the C-shaped support frame (26); a support block (29) is fixedly sleeved on the outer periphery of the third support tube (28) and located above the C-shaped support frame (26); a third screw rod (31) is movably penetrated in the middle part of the C-shaped support frame (26); the lower part of the third screw rod (31) is rotatably connected to the C-shaped support frame (26); a third rotating wheel (27) is installed at the lower end of the third screw rod (31) and located in the C-shaped support frame (26); the upper part of the third screw rod (31) extends into the third support tube (28); The upper part of the third screw rod (31) is threadedly sleeved with the second telescopic cylinder (30), the upper part of the second telescopic cylinder (30) movably passes through the third support cylinder (28), the top of the second telescopic cylinder (30) is fixedly connected to the second support plate (24), the upper end periphery of the second telescopic cylinder (30) and the middle periphery of the third support cylinder (28) are fixedly connected with a plurality of mounting seats (32), the mounting seats (32) on the upper and lower sides correspond to each other, and the mounting seats (32) on the upper and lower sides are evenly distributed at equal angles, two connecting rods (33) are arranged between the corresponding two mounting seats (32), a push seat (34) is arranged between each pair of connecting rods (33), and the two ends of the connecting rod (33) are respectively hinged to the mounting seat (32) and the push seat (34).

2. The rough and fine milling process of high torque wind power cross unit according to claim 1 is characterized in that: In step three, the rough surfaces of each support end of the wind turbine cross unit frame (5) are leveled so that the two-point jump of each support end during milling is controlled within one millimeter, and the height difference of the rough surface between the first support end (501) and the third support end (503) is 428 millimeters through the positioning device.

3. The rough and fine milling process of high torque wind power cross unit according to claim 2 is characterized in that: In step 4, the two-point runout of each support end is controlled within 2% of a millimeter by leveling, and the height difference of the blank surface between the first support end (501) and the third support end (503) is 428 millimeters.

4. The rough and fine milling process of high torque wind power cross unit according to claim 1 is characterized in that: In step one, a C-shaped positioning frame (2) is moved on the supporting frame (1), and each fixing component (4) is moved on each supporting cross bar (3). Each fixing component (4) is fixed by threaded connection of a positioning screw (8) and a positioning nut (10), so as to be compatible with different wind power cross unit frames (5).

5. The rough and fine milling process of high torque wind power cross unit according to claim 1 is characterized in that: In step 2, the second screw rod (22) is rotated by the second rotating wheel (23), thereby moving the support slider (25), and then moving the position of each second support plate (24) so ​​that the second support plate (24) corresponds to the through opening on each support end of the wind power cross unit frame (5), and then the each support end of the wind power cross unit frame (5) is placed on the support block (29) of each fixed component (4), and the height of the first telescopic rod (11) is adjusted.

6. The rough and fine milling process of high torque wind power cross unit according to claim 1 is characterized in that: In step 2, the third rotating wheel (27) is rotated to drive the third screw rod (31) and rotate the second telescopic cylinder (30), thereby pushing the two mounting seats (32) together, and then pushing the connecting rod (33) to rotate, pushing the push seat (34) outward, so that the push seat (34) is abutted and fixed with the inner side wall of the through opening on each support end of the wind turbine cross unit frame (5), thereby fixing each support end of the wind turbine cross unit frame (5).

7. The rough and fine milling process of high torque wind power cross unit according to claim 1 is characterized in that: In step two, by rotating the first rotating wheel (19), the first screw rod (18) is rotated, the first telescopic cylinder (17) is pushed, and the abutting end (20) is pushed, so that by pushing the abutting end (20) in various directions, each supporting end of the wind power cross unit frame (5) is abutted, clamped and fixed, and further fixed, and adapted to the supporting ends of different wind power cross unit frames (5).

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