Numerical control special machine for drilling and milling outer diameter of flange of wind power main engine and use method of numerical control special machine

Abstract

The invention discloses a wind power main machine flange outer diameter drilling and milling numerical control special machine and a using method thereof, and belongs to the technical field of drilling and milling numerical control special machines. The wind power main machine flange outer diameter drilling and milling numerical control special machine comprises a machining table and further comprises a supporting seat, a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft, and the supporting seat is fixedly arranged on the machining table and used for supporting a wind power main machine flange; a plurality of balls are arranged at the top of the supporting seat; the machining part is arranged on the upper side of the machining table through a connecting plate and used for machining the wind power main engine flange placed on the supporting base; the clamping blocks are connected to the machining table in a sliding mode, and the multiple clamping blocks are evenly arranged on the machining table in a circumferential mode; according to the flange clamping device, a flange can be conveniently and automatically centered and clamped, when the flange is pushed in the clamping period, abrasion between the flange and a workbench face is effectively avoided, after pushing is completed, the contact face between the flange clamping device and the bottom wall of the flange is automatically increased, then the friction force between the clamping blocks and the flange is increased, the flange clamping stability is improved, and the flange machining quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of CNC drilling and milling machines, and in particular to a CNC drilling and milling machine for the outer diameter of a wind turbine main engine flange and a use method thereof. Background Art

[0002] Wind turbine flanges are important connecting components in wind turbines. During the processing of wind turbine flanges, special drilling equipment is needed to drill holes in the flanges. Drilling and milling machines are one of the main mechanical processing equipment. The method of processing workpieces with milling cutters on milling and drilling machines is called milling. It can be used to process planes, steps, bevels, grooves, formed surfaces, gears and cuts, etc. This device is widely used in various industrial production fields to assist workers and greatly improve the work efficiency of workers.

[0003] In the prior art, an invention patent with patent application number CN201811011508.6 discloses a fixing device for flange drilling processing, which fixes the flange in four directions at the same time by driving four clamping blocks to move synchronously, thereby solving the problem of position change of the flange during drilling processing; however, in the specific operation process, since the flange is not in the center position when it is initially placed, when the four clamping blocks move at the same time, some clamping blocks first abut against the flange and some clamping blocks subsequently abut against the flange. The clamping blocks that first abut against the flange will push the flange to slide on the workbench, causing wear between the flange and the workbench, especially for large-mass flanges such as wind turbine main engine flanges, which have large friction during the pushing process, and are prone to scratches and wear on the flange or the processing table, affecting the flange qualification rate. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange and a method of using the machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A CNC machine for drilling and milling the outer diameter of a flange of a wind turbine main engine, comprising a processing table and: A support seat, which is fixed on the processing table and used to support the flange of the wind turbine main engine, and a plurality of balls are arranged on the top of the support seat; A processing part, which is arranged on the upper side of the processing table through a connecting plate and is used to process the flange of the wind turbine main engine placed on the support seat; A clamping block, wherein the clamping block is slidably connected to the processing table, a plurality of the clamping blocks are arranged evenly on the processing table in a circumferential manner, a slide groove for sliding the clamping block is provided on the processing table, and an elastic telescopic rod is provided between the processing table and the clamping block; A winding assembly, which is arranged at the lower side of the processing table and is used to drive the clamping block to clamp and position the flange of the wind turbine main engine; Wherein, the clamping block is provided with an auxiliary positioning component for fixing the flange of the wind turbine main engine.

[0006] Preferably, the winding assembly includes a winding motor fixed in the processing table, the output shaft of the winding motor is connected to a winding rod, the winding rod is connected to a first reel, a first pull rope is wound around the first reel, and the end of the first pull rope away from the first reel is connected to the clamping block.

[0007] Preferably, a first air cavity is opened on the clamping block, a first piston is slidably connected in the first air cavity, a first elastic element is arranged between the first piston and the inner wall of the first air cavity, a first connecting rod is fixed on the first piston, and the end of the first connecting rod away from the first piston passes through the first air cavity and is connected to the abutment block.

[0008] Preferably, the auxiliary positioning assembly includes a movable groove provided in the clamping block, a movable block is slidably connected in the movable groove, a third elastic element is arranged between the movable block and the inner wall of the movable groove, a connecting plate is connected to the end of the movable block away from the third elastic element, a positioning rod is arranged on the connecting plate, and a plurality of sockets matching the positioning rods are arranged at the bottom of the support seat.

[0009] Preferably, a plurality of the positioning rods are provided, and the plurality of the positioning rods are arranged on the connecting plate at unequal intervals, and the positioning rods are arranged as elastic telescopic rods.

[0010] Preferably, a plurality of second air cavities are provided on the clamping block, each of the second air cavities is connected one by one with the first air cavities in the remaining clamping blocks through an air pipe, a second piston is slidably connected in the second air cavity, a second elastic element is arranged between the second piston and the inner wall of the second air cavity, a second connecting rod is fixed on the second piston, and a positioning hole matching the second connecting rod is provided on the movable block.

[0011] Preferably, a groove is provided in the movable block, the inner wall of the groove is slidably connected to the limiting block, a fourth elastic element is arranged between the limiting block and the inner wall of the groove, a limiting hole matching the limiting block is provided on the inner wall of the movable groove, and a supporting strip plate that is movably abutted against the flange of the wind turbine main engine is fixed on the outer side of the movable block.

[0012] Preferably, a second reel is provided on the winding rod, and a second pull rope is wound around the second reel. The end of the second pull rope away from the second reel passes through the clamping block and the movable block in sequence and is connected to the limit block. The bottom of the processing table is connected to a plurality of guide pulleys through a support plate, and the second pull rope is slidably connected to the guide pulleys.

[0013] Preferably, the processing part includes a top plate fixedly connected to the connecting plate, a first motor is fixedly provided on the top plate, an output shaft of the first motor is connected to a U-shaped plate rotating on the lower side of the top plate, a second motor is fixedly provided on the U-shaped plate, an output shaft of the second motor is connected to a screw rotating on the U-shaped plate, a sleeve is threadedly connected to the screw, an electric push rod is fixedly provided at the bottom of the sleeve, a third motor is connected to the end of the electric push rod away from the sleeve, and a drill bit for processing the flange of the wind turbine main engine is connected to the output shaft of the third motor.

[0014] The present invention also discloses a method for using a special CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange, comprising the following steps: S1: The staff places the flange of the wind turbine main engine on the support seat, and then controls the winding motor to run. The output shaft of the winding motor drives the winding rod to rotate. The first drum on the winding rod winds up the first pull rope, and the second drum releases the second pull rope. The first pull rope applies tension to the clamping block, and each clamping block on the processing table moves along the slide slot. The elastic telescopic rod is compressed, and the clamping block moves toward the placed wind turbine main engine flange; S2: The clamping block close to the flange of the wind turbine main engine first touches the flange of the wind turbine main engine through the abutment block. During the contact between the abutment block and the flange of the wind turbine main engine, the first piston is driven to slide in the first air cavity through the first connecting rod, and the first elastic element is deformed to buffer the force when the clamping block and the flange of the wind turbine main engine are in contact. After the abutment block can no longer shrink into the inside of the clamping block, the abutment block pushes the flange of the wind turbine main engine, and the flange of the wind turbine main engine slides smoothly under the action of the ball arranged on the upper side of the support seat, and the flange of the wind turbine main engine moves to the clamping block in other directions; When the abutment block contracts into the clamping block, the first piston guides the air in the first air cavity of the clamping block into the second air cavity of the other clamping block through the air pipe, so that the second piston in the second air cavity drives the second connecting rod to move out of one of the positioning holes of the movable block; As the clamping blocks continue to push the flange of the wind turbine main engine onto the support seat, eventually all the clamping blocks simultaneously contact the side of the flange of the wind turbine main engine through the abutment blocks. At this time, the movable blocks in each clamping block are released from restrictions, and the second connecting rods plugged into the movable blocks are all moved out. At this time, the movable blocks move upwards under the elastic force of the compressed third elastic element, and the movable blocks plug the positioning plug rod into the socket on the lower side of the support seat through the connecting rod, thereby fixing the position of the clamping blocks at this time, maintaining the clamping state of the flange of the wind turbine main engine formed by each clamping block at this time, and controlling the winding motor to stop working; S3: When the movable block moves upward in the movable groove, it drives the supporting strip to move upward synchronously. When the limit block on the movable block is aligned with the limit hole in the movable groove, the limit block is inserted into the limit hole under the elastic force of the compressed fourth elastic element, so that the position of the movable block remains unchanged. At this time, the top surface of the supporting strip that moves upward with the movable block is in the same plane as the upper end surface of the ball. The supporting strip fits with the bottom wall of the wind turbine main engine flange in the clamping, increasing the contact surface of the clamping block with the wind turbine main engine flange, thereby increasing the contact friction with the bottom of the wind turbine main engine flange; S4: Then, according to the size of the wind turbine main engine flange, the staff controls the second motor to operate, so that the second motor drives the screw to rotate. When the screw rotates, the sleeve moves along its axial direction, and the sleeve drives the third motor and the drill bit to move, so that the drill bit moves to the position where the wind turbine main engine flange is to be drilled, and controls the electric push rod and the third motor to operate, so that the drill bit rotates and moves downward to drill the wind turbine main engine flange in the clamping. After one hole is processed, the staff controls the first motor to operate, so that the first motor drives the U-shaped plate to rotate, so that the drill bit moves to the position where another hole is to be drilled in the wind turbine main engine flange, and repeats the above operation to achieve the drilling operation of the wind turbine main engine flange; S5: After the drilling of the wind turbine main engine flange is completed, the staff controls the winding motor to run, the first drum on the winding rod releases the first pull rope, the second drum reels the second pull rope, the second pull rope pulls the limit block, so that the limit block shrinks into the groove, the limit block no longer restricts the movable block, the limit block drives the movable block to move downward, the movable block drives the supporting strip plate to move downward and no longer fits with the lower side of the wind turbine main engine flange, the movable block drives the positioning rod to move downward through the connecting plate, the clamping block is no longer restricted, the clamping block is reset under the elastic force of the compressed elastic telescopic rod, the clamping block releases the clamping positioning of the wind turbine main engine flange, the abutment block is no longer subjected to force, the first piston and the second piston are reset, the second connecting rod is reinserted on the movable block, and the staff removes the processed wind turbine main engine flange from the support seat.

[0015] Compared with the prior art, the present invention provides a CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange and a method for using the same, which has the following beneficial effects: 1. The CNC machine for drilling and milling the outer diameter of the flange of the wind turbine main engine and the method for using the same, drives the clamping block to slide on the processing table through the winding component, so as to realize the automatic centering clamping and positioning of the flange, and when the flange is pushed during the clamping period, the flange slides on the ball bearing, so as to effectively avoid the wear between the flange and the work table; 2. The CNC machine for drilling and milling the outer diameter of the flange of the wind turbine main engine and the method for using the same, by elastically arranging an abutment block on the clamping block, the initial impact force when the clamping block touches the flange is reduced, thereby avoiding damage to the clamping block or the flange, and ensuring the service life of the clamping block and the flange. When the abutment block is forced to shrink into the clamping block, the first air cavity and the second air cavity cooperate with each other to automatically move out the second connecting rod inserted into the movable block. After the abutment blocks of all the clamping blocks are abutted and clamped against the side wall of the flange, the movable block is no longer restricted and will move upward under the push of the compressed third elastic element, so that the movable block drives the positioning plug rod to be inserted into the socket on the lower side of the support seat through the connecting plate, fixes the position of the clamping block at this time, maintains the clamping state formed by each clamping block on the flange of the wind turbine main engine at this time, avoids the clamping block from loosening during the flange processing, and ensures the flange processing quality. 3. The CNC machine for drilling and milling the outer diameter of the flange of a wind turbine main engine and the method for using the same drive the supporting strip to move upward synchronously when the movable block moves upward in the movable groove. When the limit block on the movable block is aligned with the limit hole in the movable groove, the limit block is inserted into the limit hole under the push of the elastic force of the compressed fourth elastic element, so that the position of the movable block remains unchanged at this time. At this time, the top surface of the supporting strip that moves upward with the movable block is in the same plane as the upper end surface of the ball. The supporting strip fits with the bottom wall of the wind turbine main engine flange being clamped, increasing the contact surface of the clamping block with the wind turbine main engine flange, thereby increasing the contact friction with the bottom of the wind turbine main engine flange, improving the stability of the flange clamping, avoiding loosening during flange processing, and ensuring the flange processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 It is a structural schematic diagram of the top of the processing table of the present invention; Figure 4 It is a schematic diagram of the external structure of the clamping block of the present invention; Figure 5 It is a schematic cross-sectional structure diagram of the processing table of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged structural diagram of the middle part; Figure 7 It is a structural schematic diagram of the clamping block of the present invention; Figure 8 The cross-sectional structure of the clamping block of the present invention is shown in FIG. Figure 1 ; Fig. 9 The cross-sectional structure of the clamping block of the present invention is shown in FIG. Figure 2 ; Fig.10The cross-sectional structure of the clamping block of the present invention is shown in FIG. Figure 3 ; Fig.11 It is a structural schematic diagram of the movable block of the present invention.

[0017] In the figure: 1, processing table; 101, connecting plate; 102, slide; 2, support seat; 201, ball bearing; 202, jack; 3, clamping block; 4, elastic telescopic rod; 5, winding motor; 501, winding rod; 502, first reel; 5021, first pull rope; 503, second reel; 5031, second pull rope; 6, first air cavity; 601, first piston; 602, first elastic element; 603, first connecting rod; 604, abutment block; 7, movable groove; 701, movable block; 7011, positioning hole; 70 2. The third elastic element; 703. The connecting plate; 704. The positioning rod; 8. The second air cavity; 801. The second piston; 802. The second elastic element; 803. The second connecting rod; 9. The groove; 901. The limit block; 902. The fourth elastic element; 10. The limit hole; 11. The supporting strip; 12. The guide pulley; 13. The top plate; 131. The first motor; 132. The U-shaped plate; 133. The second motor; 134. The screw; 135. The sleeve; 136. The electric push rod; 137. The third motor; 138. The drill bit. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a CNC machine for drilling and milling the outer diameter of a flange of a wind turbine main engine, comprising a processing table 1, and also comprising: Support seat 2, the support seat 2 is fixed on the processing table 1, and is used to support the flange of the wind turbine main engine. A plurality of balls 201 are arranged on the top of the support seat 2; A processing part, which is arranged on the upper side of the processing table 1 through a connecting plate 101 and is used to process the flange of the wind turbine main engine placed on the support seat 2; A clamping block 3, the clamping block 3 is slidably connected to the processing table 1, a plurality of clamping blocks 3 are provided and are evenly arranged on the processing table 1 in a circumferential manner, a slide groove 102 for the clamping block 3 to slide is provided on the processing table 1, and an elastic telescopic rod 4 is provided between the processing table 1 and the clamping block 3; and The winding assembly is arranged at the lower side of the processing table 1 and is used to drive the clamping block 3 to clamp and position the flange of the wind turbine main engine; Among them, the clamping block 3 is provided with an auxiliary positioning component for fixing the flange of the wind turbine main engine.

[0021] Specifically, the staff places the wind turbine main engine flange on the support seat 2, and then controls the winding component to work. The winding component drives the multiple clamping blocks 3 on the processing table 1 to slide along their respective slide grooves 102 at the same time. The elastic telescopic rod 4 is compressed, and the clamping block 3 moves toward the placed wind turbine main engine flange to realize automatic centering clamping and positioning of the flange, and when the flange is pushed during the clamping period, the flange slides on the ball 201, which effectively avoids wear between the flange and the work surface. When the winding component is working, it drives the auxiliary positioning component to move, increase the contact surface of the clamping block 3 with the wind turbine main engine flange, and then increase the contact friction with the bottom of the wind turbine main engine flange, improve the stability of the flange clamping, avoid loosening during flange processing, and ensure the flange processing quality.

[0022] Example 2: Reference Figure 2 , Figure 5 and Figure 7 A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange. On the basis of Example 1, further, a winding component includes a winding motor 5 fixedly arranged in a processing table 1, and the output shaft of the winding motor 5 is connected to a winding rod 501, and the winding rod 501 is connected to a first reel 502, and a first pull rope 5021 is wound around the first reel 502, and the end of the first pull rope 5021 away from the first reel 502 is connected to a clamping block 3.

[0023] Specifically, when the winding assembly is working, the winding motor 5 is controlled to run, and the winding motor 5 drives the first reel 502 to rotate through the winding rod 501, so that the first reel 502 reels the first pull rope 5021, and the first pull rope 5021 applies a pulling force to the clamping block 3, so that the clamping block 3 moves along the slide groove 102 toward the flange of the wind turbine main engine, thereby realizing the automatic centering and clamping of the flange of the wind turbine main engine.

[0024] Example 3: Reference Figure 4 , Figure 5 , Figure 7 and Figure 8A CNC machine for drilling and milling the outer diameter of a flange of a wind turbine main engine. On the basis of Example 2, further, a first air cavity 6 is opened on the clamping block 3, a first piston 601 is slidably connected in the first air cavity 6, a first elastic element 602 is arranged between the first piston 601 and the inner wall of the first air cavity 6, a first connecting rod 603 is fixed on the first piston 601, and one end of the first connecting rod 603 away from the first piston 601 passes through the first air cavity 6 and is connected to a contact block 604.

[0025] Specifically, when the clamping block 3 moves toward the flange of the wind turbine main engine, the abutment block 604 on the clamping block 3 abuts against the flange first. During the contact between the abutment block 604 and the flange of the wind turbine main engine, the first piston 601 is driven to slide in the first air cavity 6 through the first connecting rod 603, and the first elastic element 602 is deformed. The first elastic element 602 can be set as a spring to buffer the force when the clamping block 3 contacts the flange of the wind turbine main engine, reduce the initial impact force when the clamping block 3 contacts the flange, avoid damage to the clamping block 3 or the flange, and ensure the service life of the clamping block 3 and the processing quality of the flange.

[0026] Example 4: Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 , a CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange. On the basis of Example 3, further, an auxiliary positioning component includes a movable groove 7 opened in a clamping block 3, a movable block 701 is slidably connected in the movable groove 7, a third elastic element 702 is arranged between the movable block 701 and the inner wall of the movable groove 7, the third elastic element 702 can be set as a spring, and a connecting plate 703 is connected to one end of the movable block 701 away from the third elastic element 702, and a positioning rod 704 is arranged on the connecting plate 703, and a plurality of sockets 202 matching the positioning rod 704 are opened at the bottom of the support seat 2.

[0027] Furthermore, a plurality of second air cavities 8 are provided on the clamping block 3, and each second air cavity 8 is connected one by one with the first air cavities 6 in the remaining clamping blocks 3 through an air pipe. A second piston 801 is slidably connected in the second air cavity 8, and a second elastic element 802 is arranged between the second piston 801 and the inner wall of the second air cavity 8. The second elastic element 802 can be set as a spring. A second connecting rod 803 is fixedly provided on the second piston 801, and a positioning hole 7011 matching the second connecting rod 803 is provided on the movable block 701.

[0028] Specifically, when the plurality of clamping blocks 3 move toward the flange of the wind turbine main engine along the slide groove 102, the clamping block 3 that is close to the flange of the wind turbine main engine first touches the flange of the wind turbine main engine through the abutting block 604. During the contact between the abutting block 604 and the flange of the wind turbine main engine, the first piston 601 is driven to slide in the first air cavity 6 through the first connecting rod 603. The first elastic element 602 is deformed to buffer the force when the clamping block 3 contacts the flange of the wind turbine main engine. After the abutting block 604 cannot continue to shrink into the inside of the clamping block 3, the abutting block 604 pushes the flange of the wind turbine main engine. The flange of the wind turbine main engine slides smoothly under the action of the ball 201 arranged on the upper side of the support seat 2, and the flange of the wind turbine main engine moves toward the clamping block 3 in other directions. When the abutment block 604 contracts toward the clamping block 3, the first piston 601 guides the air in the first air cavity 6 of the clamping block 3 into the second air cavity 8 of the other clamping block 3 through the air pipe, so that the second piston 801 in the second air cavity 8 drives the second connecting rod 803 to move out of one of the positioning holes 7011 of the movable block 701; As the clamping block 3 continues to push the flange of the wind turbine main engine on the support seat 2, all the clamping blocks 3 will eventually contact the side of the flange of the wind turbine main engine through the abutment block 604 at the same time. At this time, the movable block 701 in each clamping block 3 is released from the restriction, and the second connecting rod 803 plugged into the movable block 701 is moved out. At this time, the movable block 701 moves upward under the elastic force of the compressed third elastic element 702, and the movable block 701 inserts the positioning plug rod 704 into the socket 202 on the lower side of the support seat 2 through the connecting rod, fixes the position of the clamping block 3 at this time, maintains the clamping state of each clamping block 3 on the flange of the wind turbine main engine at this time, avoids the loosening of the clamping block 3 during the flange processing, and ensures the flange processing quality.

[0029] Example 5: Reference Figure 8 and Fig.11 A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange. Based on Example 4, further, a plurality of positioning rods 704 are provided, and the plurality of positioning rods 704 are unequally spaced on a connecting plate 703, and the positioning rods 704 are provided as elastic telescopic rods.

[0030] Specifically, when the connecting plate 703 drives multiple positioning rods 704 to move upward synchronously, the multiple positioning rods 704 are unequally spaced on the connecting plate 703, which can ensure that at least one positioning rod 704 is in a plugged state with the socket 202, and the remaining positioning rods 704 that are not plugged with the socket 202 are automatically retracted to ensure the practicality of the equipment.

[0031] Example 6: Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9, Fig.10 and Fig.11 A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange. On the basis of Example 5, a groove 9 is further provided in a movable block 701, and the inner wall of the groove 9 is slidably connected to the limit block 901. A fourth elastic element 902 is provided between the limit block 901 and the inner wall of the groove 9. The fourth elastic element 902 can be set as a spring. A limit hole 10 matching the limit block 901 is provided on the inner wall of the movable groove 7. A supporting strip 11 that is movably against the flange of the wind turbine main engine is fixedly provided on the outer side of the movable block 701.

[0032] Specifically, when the movable block 701 moves upward in the movable groove 7, it drives the supporting strip 11 to move upward synchronously. When the limit block 901 on the movable block 701 is aligned with the limit hole 10 in the movable groove 7, the limit block 901 is inserted into the limit hole 10 under the elastic force of the compressed fourth elastic element 902, so that the position of the movable block 701 remains unchanged at this time. At this time, the top surface of the supporting strip 11 that moves upward with the movable block 701 is in the same plane with the upper end surface of the ball 201, and the supporting strip 11 is in contact with the bottom wall of the wind turbine main engine flange being clamped, thereby increasing the contact surface of the clamping block 3 with the wind turbine main engine flange, thereby increasing the contact friction with the bottom of the wind turbine main engine flange, improving the stability of the flange clamping, avoiding loosening during flange processing, and ensuring the flange processing quality.

[0033] Example 7: Reference Figure 4 , Figure 5 and Figure 6 A CNC machine for drilling and milling the outer diameter of a flange of a wind turbine main engine. On the basis of Example 6, further, a second reel 503 is provided on the winding rod 501, and a second pull rope 5031 is wound around the second reel 503. The end of the second pull rope 5031 away from the second reel 503 passes through the clamping block 3 and the movable block 701 in sequence and is connected to the limit block 901. The bottom of the processing table 1 is connected to a plurality of guide pulleys 12 through a support plate, and the second pull rope 5031 is slidably connected to the guide pulley 12.

[0034] Specifically, after the drilling of the flange of the wind turbine main engine is completed, the staff controls the winding motor 5 to run, the first drum 502 on the winding rod 501 releases the first pull rope 5021, the second drum 503 winds up the second pull rope 5031, and the second pull rope 5031 pulls the limit block 901, so that the limit block 901 shrinks into the groove 9, and the limit block 901 no longer restricts the movable block 701, and the limit block 901 drives the movable block 701 to move downward, and the movable block 701 drives the supporting strip 11 to move downward and no longer fits with the lower side of the flange of the wind turbine main engine, avoiding When the clamping block 3 moves back subsequently, the top wall of the supporting strip 11 rubs against the bottom wall of the wind turbine main engine flange, and the movable block 701 drives the positioning rod 704 to move downward through the connecting plate 703. The clamping block 3 is no longer restricted, and the clamping block 3 is reset under the elastic force of the compressed elastic telescopic rod 4. The clamping block 3 releases the clamping positioning of the wind turbine main engine flange, and the abutment block 604 is no longer subjected to force. The first piston 601 and the second piston 801 are reset, and the second connecting rod 803 is re-inserted on the movable block 701 to prepare for clamping for the subsequent processing of other wind turbine main engine flanges.

[0035] Example 8: Reference Figure 1 and Figure 2 A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange. On the basis of Example 7, further, a processing portion includes a top plate 13 fixedly connected to a connecting plate 101, a first motor 131 is fixedly provided on the top plate 13, an output shaft of the first motor 131 is connected to a U-shaped plate 132 rotating on the lower side of the top plate 13, a second motor 133 is fixedly provided on the U-shaped plate 132, an output shaft of the second motor 133 is connected to a screw rod 134 rotating on the U-shaped plate 132, a sleeve 135 is threadedly connected to the screw rod 134, an electric push rod 136 is fixedly provided at the bottom of the sleeve 135, an end of the electric push rod 136 away from the sleeve 135 is connected to a third motor 137, and an output shaft of the third motor 137 is connected to a drill bit 138 for processing the wind turbine main engine flange.

[0036] Specifically, the staff controls the operation of the second motor 133 according to the size of the wind turbine main engine flange, so that the second motor 133 drives the screw rod 134 to rotate, and when the screw rod 134 rotates, the sleeve 135 moves along its axial direction, and the sleeve 135 drives the third motor 137 and the drill bit 138 to move, so that the drill bit 138 moves to the position where a hole is to be drilled in the wind turbine main engine flange, and controls the operation of the electric push rod 136 and the third motor 137, so that the drill bit 138 rotates and moves downward to drill the clamped wind turbine main engine flange. After one hole is processed, the first motor 131 is controlled to operate, so that the first motor 131 drives the U-shaped plate 132 to rotate, so that the drill bit 138 moves to the position where another hole is to be drilled in the wind turbine main engine flange, and the above operations are repeated to complete the drilling operation of the wind turbine main engine flange.

[0037] The present invention also discloses a method for using a special CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange, comprising the following steps: S1: The staff places the flange of the wind turbine main engine on the support seat 2, and then controls the winding motor 5 to run. The output shaft of the winding motor 5 drives the winding rod 501 to rotate. The first drum 502 on the winding rod 501 winds up the first pull rope 5021, and the second drum 503 releases the second pull rope 5031. The first pull rope 5021 applies tension to the clamping block 3. Each clamping block 3 on the processing table 1 moves along the slide groove 102, the elastic telescopic rod 4 is compressed, and the clamping block 3 moves toward the placed wind turbine main engine flange; S2: The clamping block 3 which is close to the flange of the wind turbine main engine first touches the flange of the wind turbine main engine through the abutting block 604. During the contact between the abutting block 604 and the flange of the wind turbine main engine, the first piston 601 is driven to slide in the first air cavity 6 through the first connecting rod 603. The first elastic element 602 is deformed to buffer the force when the clamping block 3 contacts the flange of the wind turbine main engine. After the abutting block 604 cannot continue to shrink into the clamping block 3, the abutting block 604 pushes the flange of the wind turbine main engine. The flange of the wind turbine main engine slides smoothly under the action of the ball 201 arranged on the upper side of the support seat 2, and the flange of the wind turbine main engine moves toward the clamping block 3 in other directions. When the abutment block 604 contracts toward the clamping block 3, the first piston 601 guides the air in the first air cavity 6 of the clamping block 3 into the second air cavity 8 of the other clamping block 3 through the air pipe, so that the second piston 801 in the second air cavity 8 drives the second connecting rod 803 to move out of one of the positioning holes 7011 of the movable block 701; As the clamping block 3 continues to push the flange of the wind turbine main engine onto the support seat 2, eventually all the clamping blocks 3 contact the side of the flange of the wind turbine main engine at the same time through the abutment block 604. At this time, the movable block 701 in each clamping block 3 is released from restriction, and the second connecting rod 803 plugged into the movable block 701 is moved out. At this time, the movable block 701 moves upward under the elastic force of the compressed third elastic element 702, and the movable block 701 plugs the positioning plug rod 704 into the socket 202 on the lower side of the support seat 2 through the connecting rod, fixes the position of the clamping block 3 at this time, maintains the clamping state formed by each clamping block 3 on the flange of the wind turbine main engine at this time, and controls the winding motor 5 to stop working; S3: When the movable block 701 moves upward in the movable groove 7, it drives the support strip 11 to move upward synchronously. When the limit block 901 on the movable block 701 is aligned with the limit hole 10 in the movable groove 7, the limit block 901 is inserted into the limit hole 10 under the elastic force of the compressed fourth elastic element 902, so that the position of the movable block 701 remains unchanged. At this time, the top surface of the support strip 11 that moves upward with the movable block 701 is in the same plane as the upper end surface of the ball 201, and the support strip 11 is in contact with the bottom wall of the wind turbine main engine flange being clamped, thereby increasing the contact surface of the clamping block 3 with the wind turbine main engine flange, thereby increasing the contact friction with the bottom of the wind turbine main engine flange; S4: Then the staff controls the second motor 133 to operate according to the size of the wind turbine main engine flange, so that the second motor 133 drives the screw 134 to rotate, and when the screw 134 rotates, the sleeve 135 moves along its axial direction, and the sleeve 135 drives the third motor 137 and the drill bit 138 to move, so that the drill bit 138 moves to the position where the wind turbine main engine flange is to be drilled, and controls the electric push rod 136 and the third motor 137 to operate, and the drill bit 138 rotates and moves downward to drill the wind turbine main engine flange being clamped. After one hole is processed, the first motor 131 is controlled to operate, so that the first motor 131 drives the U-shaped plate 132 to rotate, so that the drill bit 138 moves to the position where another hole is to be drilled in the wind turbine main engine flange, and the above operation is repeated to achieve the drilling operation of the wind turbine main engine flange; S5: After the drilling of the flange of the wind turbine main engine is completed, the staff controls the winding motor 5 to run, the first drum 502 on the winding rod 501 releases the first pull rope 5021, the second drum 503 winds up the second pull rope 5031, the second pull rope 5031 pulls the limit block 901, so that the limit block 901 shrinks into the groove 9, the limit block 901 no longer restricts the movable block 701, the limit block 901 drives the movable block 701 to move downward, the movable block 701 drives the support strip 11 to move downward and no longer contact with the support strip 11. The lower side of the wind turbine main engine flange is fitted, and the movable block 701 drives the positioning rod 704 to move downward through the connecting plate 703. The clamping block 3 is no longer restricted, and the clamping block 3 is reset under the elastic force of the compressed elastic telescopic rod 4. The clamping block 3 releases the clamping positioning of the wind turbine main engine flange, and the abutment block 604 is no longer subjected to force. The first piston 601 and the second piston 801 are reset, and the second connecting rod 803 is reinserted into the movable block 701. The staff then removes the processed wind turbine main engine flange from the support seat 2.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange, comprising a processing table (1), characterized in that: Also includes: A support seat (2), the support seat (2) being fixedly mounted on the processing table (1) and used for supporting the flange of the wind turbine main engine, and a plurality of balls (201) being arranged on the top of the support seat (2); A processing part, the processing part is arranged on the upper side of the processing table (1) through a connecting plate (101) and is used for processing a flange of a wind turbine main engine placed on the support seat (2); A clamping block (3), the clamping block (3) being slidably connected to the processing table (1), a plurality of the clamping blocks (3) being arranged evenly and circumferentially on the processing table (1), a slide groove (102) for the clamping block (3) to slide is provided on the processing table (1), and an elastic telescopic rod (4) is provided between the processing table (1) and the clamping block (3); A winding assembly, the winding assembly being arranged on the lower side of the processing table (1) and being used to drive the clamping block (3) to clamp and position the flange of the wind turbine main engine; Wherein, the clamping block (3) is provided with an auxiliary positioning component for fixing the flange of the wind turbine main engine.

2. A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange according to claim 1, characterized in that: The winding assembly comprises a winding motor (5) fixedly arranged in the processing table (1); the output shaft of the winding motor (5) is connected to a winding rod (501); the winding rod (501) is connected to a first reel (502); a first pull rope (5021) is wound around the first reel (502); and one end of the first pull rope (5021) away from the first reel (502) is connected to a clamping block (3).

3. A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange according to claim 2, characterized in that: The clamping block (3) is provided with a first air cavity (6), a first piston (601) is slidably connected in the first air cavity (6), a first elastic element (602) is provided between the first piston (601) and the inner wall of the first air cavity (6), a first connecting rod (603) is fixedly provided on the first piston (601), and an end of the first connecting rod (603) away from the first piston (601) passes through the first air cavity (6) and is connected to an abutment block (604).

4. A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange according to claim 3, characterized in that: The auxiliary positioning assembly comprises a movable groove (7) provided in the clamping block (3), a movable block (701) being slidably connected in the movable groove (7), a third elastic element (702) being provided between the movable block (701) and the inner wall of the movable groove (7), a connecting plate (703) being connected to one end of the movable block (701) away from the third elastic element (702), a positioning plug rod (704) being provided on the connecting plate (703), and a plurality of sockets (202) cooperating with the positioning plug rods (704) being provided at the bottom of the support seat (2).

5. A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange according to claim 4, characterized in that: A plurality of the positioning rods (704) are provided, and the plurality of positioning rods (704) are arranged on the connecting plate (703) at unequal intervals. The positioning rods (704) are arranged as elastic telescopic rods.

6. A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange according to claim 5, characterized in that: The clamping block (3) is provided with a plurality of second air cavities (8), each of the second air cavities (8) being connected one by one with the first air cavities (6) in the remaining clamping blocks (3) through an air pipe, a second piston (801) being slidably connected in the second air cavity (8), a second elastic element (802) being provided between the second piston (801) and the inner wall of the second air cavity (8), a second connecting rod (803) being fixedly provided on the second piston (801), and a positioning hole (7011) matching with the second connecting rod (803) being provided on the movable block (701).

7. A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange according to claim 6, characterized in that: A groove (9) is provided in the movable block (701); the inner wall of the groove (9) is slidably connected to the limit block (901); a fourth elastic element (902) is provided between the limit block (901) and the inner wall of the groove (9); a limit hole (10) matching the limit block (901) is provided on the inner wall of the movable groove (7); and a support strip (11) that movably abuts against the flange of the wind turbine main engine is fixedly provided on the outer side of the movable block (701).

8. A CNC machine for drilling and milling the outer diameter of a flange of a wind turbine main engine according to claim 7, characterized in that: The winding rod (501) is provided with a second winding drum (503), and a second pull rope (5031) is wound around and connected to the second winding drum (503). The end of the second pull rope (5031) away from the second winding drum (503) passes through the clamping block (3), the movable block (701) in sequence, and is connected to the limit block (901). The bottom of the processing table (1) is connected to a plurality of guide pulleys (12) via a support plate, and the second pull rope (5031) is slidably connected to the guide pulleys (12).

9. A CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange according to claim 8, characterized in that: The processing portion comprises a top plate (13) fixedly connected to the connecting plate (101); a first motor (131) is fixedly arranged on the top plate (13); an output shaft of the first motor (131) is connected to a U-shaped plate (132) rotating on the lower side of the top plate (13); a second motor (133) is fixedly arranged on the U-shaped plate (132); an output shaft of the second motor (133) is connected to a screw rod (134) rotating on the U-shaped plate (132); a sleeve (135) is threadedly connected to the screw rod (134); an electric push rod (136) is fixedly arranged at the bottom of the sleeve (135); an end of the electric push rod (136) away from the sleeve (135) is connected to a third motor (137); and an output shaft of the third motor (137) is connected to a drill bit (138) for processing a flange of a wind turbine main engine.

10. A method for using the CNC machine for drilling and milling the outer diameter of a wind turbine main engine flange according to claim 9, characterized in that: The following steps are involved: S1: A staff member places the flange of the wind turbine main engine on the support seat (2), and then controls the winding motor (5) to operate. The output shaft of the winding motor (5) drives the winding rod (501) to rotate. The first reel (502) on the winding rod (501) reels the first pull rope (5021), and the second reel (503) releases the second pull rope (5031). The first pull rope (5021) applies a pulling force to the clamping block (3). Each clamping block (3) on the processing table (1) moves along the slide groove (102), the elastic telescopic rod (4) is compressed, and the clamping block (3) moves toward the placed wind turbine main engine flange; S2: The clamping block (3) which is close to the flange of the wind turbine main engine first contacts the flange of the wind turbine main engine through the abutting block (604). During the contact between the abutting block (604) and the flange of the wind turbine main engine, the first piston (601) is driven to slide in the first air chamber (6) through the first connecting rod (603). The first elastic element (602) is deformed to buffer the force when the clamping block (3) contacts the flange of the wind turbine main engine. After the abutting block (604) can no longer shrink into the inside of the clamping block (3), the abutting block (604) pushes the flange of the wind turbine main engine. The flange of the wind turbine main engine slides smoothly under the action of the ball (201) arranged on the upper side of the support seat (2), and the flange of the wind turbine main engine moves toward the clamping block (3) in other directions. When the abutment block (604) contracts into the clamping block (3), the first piston (601) guides the air in the first air cavity (6) of the clamping block (3) into the second air cavity (8) of the other clamping block (3) through the air pipe, so that the second piston (801) in the second air cavity (8) drives the second connecting rod (803) to move out of one of the positioning holes (7011) of the movable block (701); As the clamping block (3) continues to push the flange of the wind turbine main engine onto the support seat (2), eventually all the clamping blocks (3) simultaneously contact the side of the flange of the wind turbine main engine through the abutment block (604). At this time, the movable block (701) in each clamping block (3) is released from restriction, and the second connecting rod (803) plugged into the movable block (701) is moved out. At this time, the movable block (701) moves upward under the elastic force of the compressed third elastic element (702). The movable block (701) plugs the positioning plug rod (704) into the plug hole (202) on the lower side of the support seat (2) through the connecting rod, fixes the position of the clamping block (3) at this time, maintains the clamping state formed by each clamping block (3) on the flange of the wind turbine main engine at this time, and controls the winding motor (5) to stop working; S3: When the movable block (701) moves upward in the movable groove (7), it drives the support strip (11) to move upward synchronously. When the limit block (901) on the movable block (701) is aligned with the limit hole (10) in the movable groove (7), the limit block (901) is inserted into the limit hole (10) under the elastic force of the compressed fourth elastic element (902), so that the position of the movable block (701) is kept unchanged. At this time, the top surface of the support strip (11) that moves upward with the movable block (701) and the upper end surface of the ball (201) are in the same plane, and the support strip (11) is in contact with the bottom wall of the wind turbine main engine flange being clamped, thereby increasing the contact surface of the clamping block (3) with the wind turbine main engine flange, thereby increasing the contact friction with the bottom of the wind turbine main engine flange; S4: Subsequently, the staff controls the second motor (133) to operate according to the size of the wind turbine main engine flange, so that the second motor (133) drives the screw rod (134) to rotate. When the screw rod (134) rotates, the sleeve (135) moves along its axial direction. The sleeve (135) drives the third motor (137) and the drill bit (138) to move, so that the drill bit (138) moves to the position directly above the wind turbine main engine flange where a hole is to be drilled. The staff controls the electric push rod (136) and the third motor (137) to operate, so that the drill bit (138) rotates downward to perform drilling work on the clamped wind turbine main engine flange. After one hole is processed, the staff controls the first motor (131) to operate, so that the first motor (131) drives the U-shaped plate (132) to rotate, so that the drill bit (138) moves to the position directly above another position to be drilled on the wind turbine main engine flange. The above operation is repeated to achieve drilling work on the wind turbine main engine flange. S5: After the drilling of the flange of the wind turbine main engine is completed, the staff controls the winding motor (5) to operate, the first drum (502) on the winding rod (501) releases the first pull rope (5021), the second drum (503) winds up the second pull rope (5031), the second pull rope (5031) pulls the limit block (901), so that the limit block (901) shrinks into the groove (9), the limit block (901) no longer restricts the movable block (701), the limit block (901) drives the movable block (701) to move downward, the movable block (701) drives the support strip (11) to move downward, and The movable block (701) is no longer in contact with the lower side of the flange of the wind turbine main engine. The movable block (701) drives the positioning rod (704) to move downward through the connecting plate (703). The clamping block (3) is no longer restricted. The clamping block (3) is reset under the elastic force of the compressed elastic telescopic rod (4). The clamping block (3) releases the clamping and positioning of the flange of the wind turbine main engine. The abutting block (604) is no longer subjected to force. The first piston (601) and the second piston (801) are reset. The second connecting rod (803) is reconnected to the movable block (701). The staff then removes the processed flange of the wind turbine main engine from the supporting seat (2).

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