Automatic punching machine for wind turbine blades

Abstract

The present invention provides an automatic wind turbine blade drilling machine, comprising a frame, a mobile frame movably arranged on the frame, a controller, a walking mechanism for driving the mobile frame to move, a turntable rotatably arranged on the mobile frame, a rotating mechanism for driving the turntable to rotate, a mounting frame movably arranged on the mobile frame, a distance adjustment mechanism for adjusting the position of the mounting frame, a mounting seat movably installed on the mobile frame and having a drilling assembly, a swing frame rotatably installed on the mounting frame and a driving mechanism for driving the swing frame to rotate, a transmission rod is hingedly arranged on the mounting seat, an adjusting block hinged to the transmission rod is movably provided on the swing frame, and an adjusting mechanism for adjusting the position of the adjusting block is provided on the swing frame, the axial, radial and angular position adjustment of the drilling assembly can be achieved through the cooperation of the walking mechanism, the distance adjustment mechanism, the driving mechanism, the swing frame, the adjusting block, the transmission rod and the rotating mechanism, and the drilling depth can be adjusted through the adjusting mechanism, so as to realize automatic drilling of the blades and improve the hole position accuracy and the drilling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine blade processing, and in particular to an automatic punching machine for wind turbine blades. Background Art

[0002] The design of the blades in a wind turbine directly affects the efficiency of wind energy conversion and its annual power generation, and is an important part of wind energy utilization. Large wind turbine blades are usually made of fiberglass, which is a reinforced plastic made of epoxy resin, unsaturated resin and other plastics infiltrated with glass fibers or carbon fibers of different lengths. Reinforced plastics have high strength, light weight, and are resistant to aging. The surface can be wrapped with glass fibers and coated with epoxy resin. Wind turbine blades usually need to have holes opened at their cylindrical ends and connected to the rotor through the holes using connectors. Traditional blade holes need to be manually marked and positioned after the blade position is fixed by the support frame. This type of punching method has low work efficiency, low hole position accuracy, high labor intensity, and poor overall processing quality. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the above-mentioned technology and to propose an automatic wind turbine blade punching machine to solve the above-mentioned problems.

[0004] The present invention provides an automatic wind turbine blade punching machine, comprising:

[0005] A frame, a mobile frame is movably arranged on the frame, a controller and a walking mechanism for driving the mobile frame to move are arranged on the mobile frame, a turntable is rotatably arranged on the mobile frame, a rotating mechanism for adjusting the deflection angle of the turntable is arranged on the mobile frame, and a mounting frame that moves radially along the turntable is arranged on the turntable;

[0006] A distance adjustment mechanism, the distance adjustment mechanism is arranged on the rotary table, the distance adjustment mechanism is transmission-connected with the mounting frame and drives the mounting frame to move;

[0007] A mounting seat, the mounting seat is movably mounted on the mounting frame, a drilling assembly is provided on the mounting seat, and a transmission rod is hingedly provided on the mounting seat;

[0008] A swing frame, the swing frame is rotatably mounted on the mounting frame, an adjustment block is movably arranged on the swing frame, and the adjustment block is hinged to the transmission rod;

[0009] An adjusting mechanism, wherein the adjusting mechanism is arranged on the swing frame, the adjusting mechanism is in transmission connection with the adjusting block and adjusts the position of the adjusting block;

[0010] A driving mechanism is connected to the swing frame in a transmission manner and drives the swing frame to rotate.

[0011] Furthermore, the adjustment mechanism includes an adjustment motor and a screw, the screw is rotatably mounted on the swing frame, the adjustment motor is arranged on the swing frame, the adjustment motor is transmission-connected to the screw and drives the screw to rotate, and the adjustment block is provided with a screw hole that cooperates with the screw.

[0012] Furthermore, the driving mechanism includes a driving cylinder, a rack and a driving gear. The driving gear is coaxially connected to the swing frame and drives the swing frame to rotate. The rack is movably installed on the mounting frame and meshes with the driving gear. The driving cylinder is arranged on the mounting frame. The driving cylinder is transmission-connected to the rack and drives the rack to move.

[0013] Furthermore, the drilling assembly includes a drilling motor, a connecting block and a drill rod. The drilling motor is arranged on the mounting seat. The drilling motor is transmission-connected to the connecting block and drives the connecting block to rotate. The connecting block is detachably provided with a drill rod.

[0014] Furthermore, the drill rod is provided with a mounting column, the connecting block is provided with a slot for inserting the mounting column, and the inserting column is connected to the connecting block by bolts.

[0015] Furthermore, the distance adjustment mechanism includes a driving motor and a threaded rod, the threaded rod is rotatably mounted on the mounting frame, the driving motor is arranged on the mounting frame, the driving motor is transmission-connected to the threaded rod and drives the threaded rod to rotate, and the mounting frame is provided with a screw hole that cooperates with the threaded rod.

[0016] Furthermore, the rotating mechanism includes a stepper motor, a worm, a worm wheel, a transmission gear and a ring gear, the stepper motor is arranged on the mobile frame, the worm wheel and the worm are both rotatably mounted on the mobile frame, the worm is meshed with the worm wheel, the stepper motor is transmission-connected to the worm and drives the worm to rotate, the transmission gear is coaxially connected to the worm wheel and rotates with the worm wheel, and the ring gear is arranged on the turntable and meshes with the transmission gear.

[0017] Furthermore, the walking mechanism is a hydraulic cylinder, the hydraulic cylinder is arranged on the frame, and the piston rod of the hydraulic cylinder is connected to the moving frame.

[0018] Furthermore, a radial distance measuring mechanism is arranged on the rotating table, an electric telescopic rod is arranged on the rotating table, and an axial distance measuring mechanism is arranged at the driving end of the electric telescopic rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] After the cylinder at the end of the blade is installed and fixed, the moving frame is driven to move by the walking mechanism to adjust the axial position of the drilling assembly relative to the cylinder at the end of the blade, and the position of the mounting frame is adjusted by the distance adjustment mechanism to adjust the initial position of the drilling assembly before drilling. Then, the swing frame is driven to rotate by the driving mechanism. During the rotation of the swing frame, the mounting seat is driven to reciprocate by the adjusting block and the transmission rod. The drilling assembly drills holes on the blade during the reciprocating movement of the mounting seat, and cooperates with the rotating mechanism to adjust the angular position of the turntable to adjust the angular position of the drilling assembly, that is, to achieve axial, radial and angular position adjustment of the drilling assembly, and perform circumferential positioning and drilling on the blade, and the position of the adjusting block relative to the swing frame can be adjusted by the adjusting mechanism as needed, thereby adjusting the travel range of the drilling assembly, that is, to achieve drilling depth adjustment to meet drilling processing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0023] Figure 2 It is a structural schematic diagram of a turntable, a mounting frame and a mounting seat in a certain embodiment of the present invention;

[0024] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0025] Figure 4 It is a structural schematic diagram of a rotating mechanism in a certain embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of a drilling component in a certain embodiment of the present invention.

[0027] In the figure, 1-frame; 11-mobile frame; 12-travel mechanism; 2-turntable; 21-mounting frame; 22-radial distance measuring mechanism; 23-electric telescopic rod; 24-axial distance measuring mechanism; 3-rotating mechanism; 31-stepping motor; 32-worm; 33-worm wheel; 34-transmission gear; 35-gear ring; 4-pitch adjustment mechanism; 41-drive motor; 42-threaded rod; 5-mounting seat; 51-transmission rod; 6-drilling assembly; 61-drilling motor; 62-connecting block; 621-slot; 63-drill rod; 631-mounting column; 7-swinging frame; 71-adjusting block; 8-adjusting mechanism; 81-adjusting motor; 82-screw; 9-driving mechanism; 91-driving cylinder; 92-rack; 93-driving gear; 10-blade end cylinder. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] Reference Figures 1 to 5 The present invention provides an automatic punching machine for wind turbine blades, comprising:

[0031] A frame 1, a mobile frame 11 is movably arranged on the frame 1, a controller and a walking mechanism 12 for driving the mobile frame 11 to move are arranged on the mobile frame 11, a turntable 2 is rotatably arranged on the mobile frame 11, a rotating mechanism 3 for adjusting the deflection angle of the turntable 2 is arranged on the mobile frame 11, and a mounting frame 21 is arranged on the turntable 2 for moving along the radial direction of the turntable 2;

[0032] The distance adjusting mechanism 4 is arranged on the turntable 2, and the distance adjusting mechanism 4 is connected to the mounting frame 21 by transmission and drives the mounting frame 21 to move;

[0033] A mounting seat 5, the mounting seat 5 is movably mounted on the mounting frame 21, a drilling assembly 6 is provided on the mounting seat 5, and a transmission rod 51 is hingedly provided on the mounting seat 5;

[0034] The swing frame 7 is rotatably mounted on the mounting frame 21, and an adjusting block 71 is movably arranged on the swing frame 7, and the adjusting block 71 is hinged to the transmission rod 51;

[0035] An adjusting mechanism 8, which is arranged on the swing frame 7, and is transmission-connected with the adjusting block 71 and adjusts the position of the adjusting block 71;

[0036] The driving mechanism 9 is in transmission connection with the swing frame 7 and drives the swing frame 7 to rotate.

[0037] After the blade end cylinder 10 is installed and fixed, the controller is used to control each electrical appliance, and the moving frame 11 is driven to move by the walking mechanism 12 to adjust the axial position of the drilling assembly 6 relative to the blade end cylinder 10, so that the drilling assembly 6 moves into the inner cavity of the blade end cylinder 10, and the position of the mounting frame 21 is adjusted by the distance adjustment mechanism 4 to adjust the initial position of the drilling assembly 6 before drilling, and then the swing frame 7 is driven to rotate by the driving mechanism 9. During the rotation of the swing frame 7, the mounting seat 5 is driven to reciprocate by the adjustment block 71 and the transmission rod 51. The drilling assembly 6 performs drilling work on the blade during the reciprocating movement of the mounting seat 5, and cooperates with the rotation mechanism 3 to adjust the angular position of the turntable 2 to adjust the angular position of the drilling assembly 6, that is, to achieve the axial, radial and angular position adjustment of the drilling assembly 6, and perform circumferential positioning and drilling work on the blade, and the position of the adjustment block 71 relative to the swing frame 7 can be adjusted by the adjustment mechanism 8 as needed, so as to adjust the travel range of the drilling assembly 6, that is, to achieve the depth adjustment of the drilling to meet the drilling processing requirements. Among them, the controller is a PLC control panel.

[0038] Specifically, the adjustment mechanism 8 includes an adjustment motor 81 and a screw 82. The screw 82 is rotatably mounted on the swing frame 7. The adjustment motor 81 is arranged on the swing frame 7. The adjustment motor 81 is transmission-connected to the screw 82 and drives the screw 82 to rotate. A screw hole cooperating with the screw 82 is arranged on the adjustment block 71.

[0039] The adjusting motor 81 drives the screw 82 to rotate, and the screw 82 cooperates with the thread on the adjusting block 71 to drive the adjusting block 71 to move relative to the swing frame 7, so as to adjust the position of the adjusting block 71. By adjusting the position of the adjusting block 71, the rotation radius of the adjusting block 71 is adjusted to adjust the stroke distance of the drilling assembly 6 on the mounting seat 5, so as to facilitate the adjustment of the drilling depth according to the thickness of the cylinder 10 at the end of the blade, and is suitable for drilling holes in blades of different thicknesses, with good versatility.

[0040] Specifically, the driving mechanism 9 includes a driving cylinder 91, a rack 92 and a driving gear 93. The driving gear 93 is coaxially connected to the swing frame 7 and drives the swing frame 7 to rotate. The rack 92 is movably installed on the mounting frame 21 and meshes with the driving gear 93. The driving cylinder 91 is set on the mounting frame 21. The driving cylinder 91 is transmission-connected to the rack 92 and drives the rack 92 to move.

[0041] When the driving cylinder 91 drives the rack 92 to move back and forth, the rack 92 drives the swing frame 7 to rotate through the driving gear 93, thereby driving the mounting seat 5 to drive the drilling assembly 6 to move back and forth to perform drilling work through the transmission action of the adjustment block 71 and the transmission rod 51. Compared with the structure that uses the screw slider to drive the drilling assembly 6 to move back and forth, this embodiment uses the fast response of the driving cylinder 91, and cooperates with the swing frame 7, the adjustment block 71, the adjustment mechanism 8 and the transmission rod 51 structure to achieve rapid drilling and can adjust the drilling depth according to the thickness of the cylinder 10 at the end of the blade, so as to meet the processing requirements of various blades, and has good general performance on the basis of improving the drilling efficiency.

[0042] Embodiment 2:

[0043] Reference Figures 1 to 5 Combined with the technical solution of Example 1, in this embodiment, the drilling assembly 6 includes a drilling motor 61, a connecting block 62 and a drill rod 63. The drilling motor 61 is arranged on the mounting seat 5. The drilling motor 61 is transmission-connected to the connecting block 62 and drives the connecting block 62 to rotate. The connecting block 62 is detachably provided with a drill rod 63.

[0044] The drilling assembly 6 drives the connecting block 62 to drive the drill rod 63 to rotate, and cooperates with the driving mechanism 9 to drive the mounting seat 5 to drive the drill rod 63 to move, so as to drive the drill rod 63 to move and rotate, thereby realizing the drilling work of the drill rod 63.

[0045] Specifically, the drill rod 63 is provided with a mounting column 631 , and the connecting block 62 is provided with a slot 621 for the mounting column 631 to be inserted into. The inserting column and the connecting block 62 are connected by bolts.

[0046] Among them, both the plug column and the connecting block 62 are provided with mounting holes for bolts to pass through. After the plug column is inserted into the slot 621 on the connecting block 62, the plug column and the connecting block 62 can be detachably installed by passing the bolt through the mounting hole and tightening with the nut, so that drill rods 63 of different calibers can be replaced as needed to meet the radial processing requirements of the hole.

[0047] Specifically, the distance adjustment mechanism 4 includes a driving motor 41 and a threaded rod 42. The threaded rod 42 is rotatably mounted on the mounting frame 21. The driving motor 41 is arranged on the mounting frame 21. The driving motor 41 is transmission-connected to the threaded rod 42 and drives the threaded rod 42 to rotate. The mounting frame 21 is provided with a screw hole that cooperates with the threaded rod 42.

[0048] The driving motor 41 drives the threaded rod 42 to rotate, and the threaded rod 42 cooperates with the screw hole on the mounting frame 21 to drive the mounting frame 21 to move. The mounting frame 21 drives the drilling assembly 6 to move through the mounting seat 5 to adjust the radial position of the drilling assembly 6.

[0049] Embodiment 3:

[0050] Reference Figures 1 to 5 Combined with the technical solution of Example 1, in this embodiment, the rotating mechanism 3 includes a stepping motor 31, a worm 32, a worm wheel 33, a transmission gear 34 and a ring gear 35. The stepping motor 31 is arranged on the moving frame 11. The worm wheel 33 and the worm 32 are both rotatably installed on the moving frame 11. The worm 32 is meshed with the worm wheel 33. The stepping motor 31 is connected to the worm 32 for transmission and drives the worm 32 to rotate. The transmission gear 34 is coaxially connected to the worm wheel 33 and rotates with the worm wheel 33. The ring gear 35 is arranged on the turntable 2 and meshes with the transmission gear 34.

[0051] The worm 32 is driven to rotate by the stepping motor 31 , and the worm 32 drives the turntable 2 to rotate through the transmission action of the worm wheel 33 , the transmission gear 34 and the ring gear 35 to achieve the angular position adjustment of the drilling assembly 6 .

[0052] Specifically, the traveling mechanism 12 is a hydraulic cylinder, which is disposed on the frame 1 , and a piston rod of the hydraulic cylinder is connected to the moving frame 11 .

[0053] The axial position adjustment of the drilling assembly 6 is achieved by driving the movable frame 11 to move through the hydraulic cylinder.

[0054] Specifically, a radial distance measuring mechanism 22 is provided on the turntable 2 , an electric telescopic rod 23 is provided on the turntable 2 , and an axial distance measuring mechanism 24 is provided at the driving end of the electric telescopic rod 23 .

[0055] The radial distance measuring mechanism 22 and the axial distance measuring mechanism 24 both use infrared distance measuring sensors of model XKC-KL200-UART. The position of the axial distance measuring mechanism 24 is adjusted by the electric telescopic rod 23 so that the axial distance measuring mechanism 24 is directly opposite to the annular end face of the blade end cylinder 10. The axial distance measuring mechanism 24 emits infrared light to the annular end face and can measure the axial distance of the entire turntable 2 relative to the blade end cylinder 10. Since the distance between the drilling assembly 6 and the turntable 2 is fixed, the controller can adjust the position of the axial distance measuring mechanism 24 according to the information. By calculating the axial distance of the drilling assembly 6 relative to the blade end cylinder 10, and controlling the walking mechanism 12 to drive the moving frame 11 to drive the turntable 2 and the drilling assembly 6 to move, the axial adjustment of the hole processing position on the blade end cylinder 10 can be achieved. Subsequently, the radial distance measuring mechanism 22 emits infrared light to the inner wall of the blade end cylinder 10 to measure the radius of the cylinder. The controller controls the distance adjusting mechanism 4 according to the information to adjust the radial position of the drilling assembly 6, that is, to realize the automatic positioning of the axial and radial positions of the drilling assembly 6.

[0056] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the art can use the above technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. An automatic punching machine for wind turbine blades, characterized in that: include: A frame, a mobile frame is movably arranged on the frame, a controller and a walking mechanism for driving the mobile frame to move are arranged on the mobile frame, a turntable is rotatably arranged on the mobile frame, a rotating mechanism for adjusting the deflection angle of the turntable is arranged on the mobile frame, and a mounting frame that moves radially along the turntable is arranged on the turntable; A distance adjustment mechanism, the distance adjustment mechanism is arranged on the rotary table, the distance adjustment mechanism is transmission-connected with the mounting frame and drives the mounting frame to move; A mounting seat, the mounting seat is movably mounted on the mounting frame, a drilling assembly is provided on the mounting seat, and a transmission rod is hingedly provided on the mounting seat; A swing frame, the swing frame is rotatably mounted on the mounting frame, an adjustment block is movably arranged on the swing frame, and the adjustment block is hinged to the transmission rod; An adjusting mechanism, wherein the adjusting mechanism is arranged on the swing frame, the adjusting mechanism is in transmission connection with the adjusting block and adjusts the position of the adjusting block; A driving mechanism is connected to the swing frame in a transmission manner and drives the swing frame to rotate.

2. The automatic wind turbine blade punching machine according to claim 1, characterized in that: The adjusting mechanism comprises an adjusting motor and a screw rod, wherein the screw rod is rotatably mounted on the swing frame, the adjusting motor is arranged on the swing frame, the adjusting motor is drivingly connected with the screw rod and drives the screw rod to rotate, and the adjusting block is provided with a screw hole matching with the screw rod.

3. The automatic wind turbine blade punching machine according to claim 1, characterized in that: The driving mechanism includes a driving cylinder, a rack and a driving gear. The driving gear is coaxially connected to the swing frame and drives the swing frame to rotate. The rack is movably installed on the mounting frame and meshes with the driving gear. The driving cylinder is arranged on the mounting frame. The driving cylinder is connected to the rack and drives the rack to move.

4. The automatic wind turbine blade punching machine according to claim 1, characterized in that: The drilling assembly comprises a drilling motor, a connecting block and a drill rod. The drilling motor is arranged on the mounting seat, the drilling motor is drivingly connected to the connecting block and drives the connecting block to rotate, and the connecting block is detachably provided with a drill rod.

5. The automatic wind turbine blade punching machine according to claim 4, characterized in that: The drill rod is provided with a mounting column, the connection block is provided with a slot for the mounting column to be inserted, and the insertion column is connected to the connection block by bolts.

6. The automatic wind turbine blade punching machine according to claim 1, characterized in that: The distance adjustment mechanism includes a driving motor and a threaded rod. The threaded rod is rotatably mounted on the mounting frame. The driving motor is arranged on the mounting frame. The driving motor is transmission-connected to the threaded rod and drives the threaded rod to rotate. The mounting frame is provided with a screw hole that cooperates with the threaded rod.

7. The automatic wind turbine blade punching machine according to claim 1, characterized in that: The rotating mechanism includes a stepper motor, a worm, a worm wheel, a transmission gear and a ring gear. The stepper motor is arranged on the moving frame. The worm wheel and the worm are both rotatably mounted on the moving frame. The worm is meshed with the worm wheel. The stepper motor is transmission-connected to the worm and drives the worm to rotate. The transmission gear is coaxially connected to the worm wheel and rotates with the worm wheel. The ring gear is arranged on the turntable and meshes with the transmission gear.

8. The automatic wind turbine blade punching machine according to claim 1, characterized in that: The walking mechanism is a hydraulic cylinder, which is arranged on the frame, and a piston rod of the hydraulic cylinder is connected to the moving frame.

9. The automatic wind turbine blade punching machine according to claim 1, characterized in that: The rotating table is provided with a radial distance measuring mechanism, the rotating table is provided with an electric telescopic rod, and the driving end of the electric telescopic rod is provided with an axial distance measuring mechanism.

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