Clamping device for machining blade root milling face of wind power blade

Abstract

The utility model discloses a wind power blade root milling surface clamping device which comprises an equipment support, two supporting rods and a blade root, the two supporting rods and the blade root are fixedly connected to the equipment support, the equipment support is fixedly connected with equipment frames through the supporting rods, a motor is arranged on one of the equipment frames, and the other of the equipment frames is provided with a clamping device. Telescopic arms are fixedly connected to the two equipment frames, clamping supporting arms are movably connected to the interiors of the telescopic arms, and the motor is in transmission connection with a clamping mechanism through a transmission assembly; through the equipment, the problem that surface stress concentration of the blade is easily caused by traditional external clamping is avoided, the structural strength and the service life of the blade are guaranteed, meanwhile, the friction force between the rubber pads at the clamping ends of the clamping rods and the root of the blade is increased, the blade is prevented from sliding during machining, the auxiliary rotating effect is further enhanced, and the machining efficiency is improved. The blades are prevented from shaking or shifting in the machining process, the machining precision is greatly improved, and meanwhile the universality of the device to the roots of the blades of different models is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power blade root milling surface processing clamping technical field, specifically a kind of processing wind power blade root milling surface clamping device. BACKGROUND

[0002] Wind power blade root milling surface clamping device is the key auxiliary equipment in the wind power blade manufacturing process, in the production of wind turbine generator unit, wind power blade root needs to be processed by milling, to form the connecting surface meeting the design requirement, to ensure the reliable connection with hub, so as to guarantee the stable operation and power generation efficiency of unit, the main role of the clamping device, it is accurate positioning and firmly fixed to blade during root milling, provide stable support basis for milling operation, through reasonable clamping design, it can effectively constrain the degree of freedom of blade, prevent the influence of vibration, displacement and other factors on processing accuracy during processing, while avoiding blade damage during clamping process, so as to guarantee the quality and efficiency of root milling, provide important guarantee for high-quality manufacturing of wind power blade.

[0003] However, the existing equipment generally adopts external clamping method to fix root, mainly through mechanical clamp to apply pressure from the outside of root, to fix root on processing platform, to ensure the stability of milling process, however, with the development of wind power blade to large-scale, light weight, this external clamping not only easily causes local damage due to stress concentration on blade surface, affects blade structural strength and service life, and external clamping device usually needs to be customized according to blade size, poor universality, difficult to meet the rapid switching processing demand of different types of blades.

[0004] Therefore, the utility model provides a kind of processing wind power blade root milling surface clamping device to solve above-mentioned problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides a kind of processing wind power blade root milling surface clamping device, solve the problem that the above-mentioned external clamping not only easily causes local damage due to stress concentration on blade surface, affects blade structural strength and service life.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of processing wind power blade root milling surface clamping device, including equipment support, two support rods and blade root fixedly connected on equipment support, the equipment support is fixedly connected with equipment frame by support rod, one of the equipment frame is provided with motor, two equipment frames are fixedly connected with telescopic arm, the inside of telescopic arm is movably connected with clamping arm, the motor is drivenly connected with clamping mechanism by transmission assembly;

[0007] The clamping mechanism comprises a rotating rod fixedly connected to the output shaft of the motor, rotating shafts and rotating discs movably connected to the upper and lower ends of the rotating rod, support discs fixedly connected to the two ends of the rotating rod, and an active seat sleeved on the rotating rod, wherein one of the support discs is movably connected to the active seat through a plurality of connecting rods, and the two support discs are movably connected to clamping rods through a plurality of connecting rods.

[0008] Preferably, an auxiliary mechanism is movably connected between the two equipment racks, the auxiliary mechanism comprises an active disc, sliding seats are fixedly connected to the two sides of the active disc, and a track for sliding of the active disc is formed in the inner side wall of the equipment rack, sliding grooves matched with the track are formed in the side surfaces of the two sliding seats, two auxiliary cylinders are fixedly connected to the upper and lower ends of the active disc, clamping rods are movably connected to the auxiliary cylinders through adjusting rods, and auxiliary wheels for auxiliary rotation are movably connected to the ends of the adjusting rods.

[0009] Preferably, the clamping rods are threadedly connected to the adjusting rods, so that rotation of the adjusting rods drives the clamping rods to move in and out of the auxiliary cylinders, so as to cope with wind turbine blade roots of different outer diameters.

[0010] Preferably, the telescopic arms are electric telescopic arms capable of controlling the telescopic length, the ends of the two clamping arms are provided with arc grooves matched with the rotating disc, and the arc grooves are movably connected to balls for reducing friction.

[0011] Preferably, the clamping ends of the clamping rods are provided with rubber pads for increasing the friction with the wind turbine blade roots, the auxiliary wheels are made of rubber, and the surfaces of the auxiliary wheels are provided with anti-skid lines.

[0012] Preferably, the transmission assembly comprises two guide wheels and a belt, the guide wheels are fixedly connected to the rotating shaft and the output shaft of the motor respectively, and the two guide wheels are connected through the belt.

[0013] Advantages

[0014] The machining wind turbine blade root milling clamping device has the following advantages compared with the prior art.

[0015] (1), the processing wind power blade root milling clamping device, through the clamping mechanism realizes the stable and reliable clamping effect to the blade root, in the clamping mechanism, the motor drives the rotating rod to rotate, the movable seat on the rotating rod moves under the action of electric control, the clamping rod is stretched or retracted through the connecting rod, avoid the problem that the traditional external clamping is easy to cause the stress concentration of the blade surface, guarantee the blade structure strength and service life, at the same time, the rubber pad of the clamping end of the clamping rod increases the friction with the blade root, prevents the blade from sliding during processing, cooperates with the coordinated operation of the telescopic arm and the clamping arm, ensures that the blade root remains stable during the milling process, provides a solid guarantee for high-precision processing.

[0016] (2), the processing wind power blade root milling clamping device, through the auxiliary mechanism realizes the effect of improving the processing stability and adapting to different blade roots, the sliding seat on the both sides of the movable disc in the auxiliary mechanism slides on the track of the equipment frame, can flexibly adapt to the rotation of the blade root, the adjusting rod is screw connected with the clamping rod, can adjust the position of the clamping rod according to the outer diameter of the blade root, so that the auxiliary wheel can effectively contact and assist the rotation of the blade, the auxiliary wheel is made of rubber material and has anti-skid lines, further enhances the auxiliary rotation effect, avoids the shaking or deviation of the blade during processing, greatly improves the processing precision, and also improves the versatility of the device for different types of blade roots. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the utility model;

[0018] Figure 2 It is the overall structure split perspective view of the utility model;

[0019] Figure 3 It is the auxiliary mechanism structure section perspective view of the utility model;

[0020] Figure 4 It is the clamping mechanism structure perspective view of the utility model.

[0021] In the drawing, 1, equipment support; 2, support rod; 3, motor; 4, equipment frame; 5, telescopic arm; 6, clamping arm; 7, blade root;

[0022] 8, auxiliary mechanism; 81, movable disc; 82, sliding seat; 83, sliding groove; 84, auxiliary cylinder; 85, clamping rod; 86, adjusting rod; 87, auxiliary wheel;

[0023] 9, clamping mechanism; 91, rotating rod; 92, rotating shaft; 93, rotating disc; 94, support disc; 95, movable seat; 96, connecting rod; 97, clamping rod;

[0024] 10, transmission assembly. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Embodiment one:

[0027] Please refer to Figures 1 to 4 A kind of processing wind power blade root milling surface clamping device, including equipment support 1, two support rods 2 and blade root 7 of fixed connection on equipment support 1, equipment support 1 is fixedly connected with equipment frame 4 by support rod 2, one equipment frame 4 is provided with motor 3, two equipment frames 4 are fixedly connected with telescopic arm 5, the inside movable connection of telescopic arm 5 has clamping arm 6, motor 3 is drivenly connected with clamping mechanism 9 by transmission assembly 10;

[0028] Clamping mechanism 9 includes the rotary bar 91 of fixed connection on the output shaft of motor 3, the upper and lower ends of rotary bar 91 movable connection have rotary shaft 92 and turntable 93, the both ends of rotary bar 91 are fixedly connected with support disc 94, rotary bar 91 is sleeved with movable seat 95, one support disc 94 is movably connected with movable seat 95 by multiple connecting rods 96, two support discs 94 are movably connected with clamping rod 97 by multiple connecting rods 96, transmission assembly 10 includes two guide wheels and belt, guide wheel is fixedly connected on rotary shaft 92 and the output shaft of motor 3 respectively, and two guide wheels are drivenly connected using belt, telescopic arm 5 is electric telescopic arm that can control telescopic length, the end of two clamping arms 6 is provided with the arc groove matched with turntable 93, and the arc groove inside movable connection has ball for reducing friction, the clamping end of clamping rod 97 is equipped with rubber pad for increasing the friction force of wind power blade root 7, and auxiliary wheel 87 adopts rubber material, and the surface of auxiliary wheel 87 is provided with anti-skid lines;

[0029] When working, before the machining operation, the electric telescopic arm 5 is started, the motor inside the electric telescopic arm 5 drives the telescopic mechanism to work, drives the clamping support arm 6 to stretch to the predetermined position, uses the lifting tool to accurately lift the blade root 7 to the equipment, ensures that the blade root 7 is located outside the clamping mechanism 9, starts the equipment, the motor 3 on the equipment frame 4 starts to work, the output shaft of the motor 3 drives the guide wheel fixed thereon to rotate, the guide wheel is connected with another guide wheel fixed on the rotating shaft 92 through a belt, and then drives the rotating shaft 92 to rotate, the rotating rod 91 movably connected with the rotating shaft 92 rotates accordingly, the outer side of the movable seat 95 is provided with a linear motor (not marked in the figure), (the linear motor of the movable seat 95 is controlled by the PLC, the PLC obtains the running signal of the motor 3 through the control line connected to the motor 3 driving circuit, and receives the control instruction from the equipment operation panel, when the operator inputs the instruction of clamping action on the operation panel, the PLC analyzes and processes the instruction), when the blade root 7 needs to be clamped, (the PLC sends an electric signal to the linear motor driver installed on one side of the rotating rod 91 according to the preset program logic, the linear motor driver is connected with the movable seat 95, after receiving the electric signal, the linear motor is driven to work, which is a common technical means for those skilled in the art, and will not be described in detail here), the linear motor drives the movable seat 95 to move on the rotating rod 91, when the movable seat 95 moves along the rotating rod 91, the support disc 94 movably connected with the movable seat 95 through a plurality of connecting rods 96 is pulled or pushed, since the two support discs 94 are movably connected with the clamping rod 97 through a plurality of connecting rods 96, the movement of the movable seat 95 is transmitted through the connecting rods 96, drives the clamping rod 97 to stretch outward, and realizes the clamping of the blade root 7, at this time, the telescopic length of the telescopic arm 5 is adjusted, the clamping support arm 6 is driven to move, and it is ensured that the clamping mechanism 9 always stably clamps the blade root 7, the end of the clamping support arm 6 is provided with an arc groove matched with the rotating disc 93, a ball is movably connected in the arc groove, when the rotating disc 93 rotates, the ball can reduce the friction between the rotating disc 93 and the clamping support arm 6, so that the rotation of the clamping mechanism 9 is more smooth, and the stability of clamping is further improved, the rubber pad arranged at the clamping end of the clamping rod 97 increases the friction with the wind power blade root 7, effectively prevents the blade root 7 from sliding in the machining process, and ensures the machining precision, when the machining is completed, the motor 3 stops working, at the same time, the PLC sends a reverse motion signal to the linear motor driver, the linear motor driver drives the linear motor to drive the movable seat 95 to move reversely, the movable seat 95 drives the clamping rod 97 to retract through the connecting rods 96, and releases the blade root 7, then the operator drives the motor inside the electric telescopic arm 5 to drive the telescopic structure to retract again, drives the clamping support arm 6 to move, so that the blade root 7 is out of the clamping range, finally, the lifting tool is used to take down the blade root 7 from the equipment.

[0030] Example two:

[0031] Please refer toFigures 1 to 4 The embodiment provides a technical scheme on the basis of the embodiment one: the auxiliary mechanism 8 is movably connected between the two equipment racks 4, the auxiliary mechanism 8 comprises a movable disc 81, sliding seats 82 are fixedly connected to the two sides of the movable disc 81, and the inner side wall of the equipment rack 4 is provided with a track for sliding of the movable disc 81, sliding grooves 83 are formed in the side surfaces of the two sliding seats 82 and matched with the track, two auxiliary cylinders 84 are fixedly connected to the upper end and the lower end of the movable disc 81, a clamping rod 85 is movably connected to the inside of the auxiliary cylinder 84 through an adjusting rod 86, the position of the clamping rod 85 is adjusted, an auxiliary wheel 87 for auxiliary rotation is movably connected to the end of the clamping rod 85, and the clamping rod 85 is screw-connected with the adjusting rod 86, so that rotating the adjusting rod 86 drives the clamping rod 85 to move in and out of the auxiliary cylinder 84, so as to cope with the blade roots 7 with different outer diameters;

[0032] When the blade root 7 is hoisted to the equipment, four adjusting rods 86 are synchronously rotated through the motor according to the outer diameter size of the blade root 7, the clamping rod 85 moves in and out of the auxiliary cylinder 84 when the adjusting rod 86 is rotated because the clamping rod 85 is screw-connected with the adjusting rod 86, the auxiliary wheel 87 just contacts the surface of the blade root 7 and keeps a certain pressure when the position is adjusted to be appropriate, the equipment starts to process after the blade root 7 is hoisted to the equipment and the clamping mechanism 9 completes clamping of the blade root 7, the blade root 7 starts to rotate under the driving of the clamping mechanism 9 in the processing process, the auxiliary wheel 87 rotates with the rotation of the blade root 7 because the auxiliary wheel 87 contacts the surface of the blade root 7 and there is a friction force, the auxiliary wheel 87 is made of rubber material and is provided with anti-skid lines on the surface, which increases the friction force with the surface of the blade root 7, the auxiliary wheel 87 can assist the blade root 7 to rotate stably at this time, the sliding seats 82 on the two sides of the movable disc 81 slide on the track of the inner side wall of the equipment rack 4, so that the auxiliary mechanism 8 can flexibly adapt to the rotation of the blade root 7, the stability of the whole clamping device in the processing process is further enhanced, the high-precision milling surface processing is ensured to be completed, the blade root 7 is separated from the clamping range after the control motor 3 stops working and the electric telescopic arm 5 retracts, the clamping arm 6 is driven to move, and then the control movable seat 95 drives the clamping rod 97 to release the blade root 7, and finally the blade root 7 is taken out from the equipment by the hoisting tool.

[0033] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0034] Working principle: when working, first start the electric telescopic arm 5, make it drive the clamping support arm 6 to stretch to the appropriate position, use the lifting tool to lift the blade root 7 to the equipment, outside the clamping mechanism 9, and the linear motor drives the movable seat 95 to move on the rotating rod 91, through the connecting rod 96, the clamping rod 97 is stretched outside to clamp the blade root 7, at the same time, adjust the telescopic arm 5 to ensure the clamping stability, the ball in the arc groove at the end of the clamping support arm 6 reduces the friction with the rotating disc 93, the rubber pad on the clamping rod 97 prevents the blade root 7 from sliding, and according to the outer diameter, four adjusting rods 86 are rotated by the motor, (the motor (not marked in the figure) is arranged at the end of the adjusting rod 86, and the four motors are started and stopped synchronously through PLC control, so as to ensure that the rotating number of the four adjusting rods 86 is consistent, the above control principle is a common technical means for those skilled in the art, and will not be described in detail here), the clamping rod 85 is stretched and retracted in the auxiliary cylinder 84, the auxiliary wheel 87 contacts the blade root 7 and keeps the pressure, and the blade root 7 always keeps the central position, when machining, the auxiliary wheel 87 rotates with the blade root 7, the rubber material and the anti-skid pattern assist the blade to rotate stably, the movable disc 81 slides on the track of the equipment frame 4 through the sliding groove 83, so as to ensure that the blade root 7 is fully milled, and the clamping stability is enhanced, the motor 3 is started to work, the motor output shaft drives the guide wheel to rotate, the guide wheel on the rotating shaft 92 is driven to rotate through the belt, and then the rotating rod 91 is driven to rotate, so that the blade root 7 is milled, after the machining is completed, the motor 3 stops working, the electric telescopic arm 5 is retracted again, the clamping support arm 6 is driven to move, the movable seat 95 is controlled to move reversely, the clamping rod 97 is retracted to release the blade root 7, and finally the blade root 7 is taken down by the lifting tool.

[0035] It should be noted that the standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A kind of processing wind power blade root milling surface clamping device, including equipment support (1), two support rods (2) fixedly connected on equipment support (1) and blade root (7), it is characterized in that: The device support (1) is fixedly connected with a device frame (4) through a support rod (2), one of the device frames (4) is provided with a motor (3), two of the device frames (4) are fixedly connected with telescopic arms (5), the inside of the telescopic arms (5) is movably connected with clamping support arms (6), the motor (3) is drivingly connected with a clamping mechanism (9) through a transmission assembly (10); The clamping mechanism (9) comprises a rotating rod (91) fixedly connected to the output shaft of the motor (3), the upper and lower ends of the rotating rod (91) are movably connected with a rotating shaft (92) and a rotating disc (93), the two ends of the rotating rod (91) are fixedly connected with support discs (94), the rotating rod (91) is sleeved with a movable seat (95), one of the support discs (94) is movably connected with the movable seat (95) through a plurality of connecting rods (96), and the two support discs (94) are movably connected with clamping rods (97) through a plurality of connecting rods (96).

2. The clamping device for milling the root of a wind turbine blade according to claim 1, characterized in that: Two of the device frames (4) are movably connected with an auxiliary mechanism (8), the auxiliary mechanism (8) comprises a movable disc (81), the two sides of the movable disc (81) are fixedly connected with sliding seats (82), the inner side wall of the device frame (4) is provided with a track for sliding of the movable disc (81), the side surfaces of the two sliding seats (82) are provided with sliding grooves (83) matched with the track, the upper and lower ends of the movable disc (81) are fixedly connected with two auxiliary cylinders (84), the inside of the auxiliary cylinder (84) is movably connected with a clamping rod (85) through an adjusting rod (86), the position of the adjusting clamping rod (85) is adjusted, and the tail end of the adjusting clamping rod (85) is movably connected with an auxiliary wheel (87) for auxiliary rotation.

3. A device for clamping a wind turbine blade root milling surface according to claim 2, characterized in that: The clamping rod (85) is threadedly connected with the adjusting rod (86), so that rotating the adjusting rod (86) drives the clamping rod (85) to move in and out of the auxiliary cylinder (84), so as to cope with different outer diameters of the blade root (7).

4. The clamping device for milling the root of a wind turbine blade according to claim 1, characterized in that: The telescopic arm (5) is an electric telescopic arm capable of controlling the telescopic length, the tail ends of the two clamping support arms (6) are provided with arc grooves matched with the rotating disc (93), and the arc grooves are movably connected with balls for reducing friction.

5. The clamping device for milling the root of a wind turbine blade according to claim 2, characterized in that: The clamping end of the clamping rod (97) is provided with a rubber pad for increasing the friction with the wind power blade root (7), and the auxiliary wheel (87) is made of rubber material, and the surface of the auxiliary wheel (87) is provided with anti-skid lines.

6. The clamping device for milling the root of a wind turbine blade according to claim 1, characterized in that: The transmission assembly (10) comprises two guide wheels and a belt, the guide wheels are fixedly connected to the rotating shaft (92) and the output shaft of the motor (3) respectively, and the two guide wheels are drivingly connected through the belt.

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