Full-automatic wind power blade die assembly anti-disengaging clamp

Abstract

The utility model discloses a full-automatic wind power blade die assembly anti-disengaging clamp. The device comprises an electric control part, a fixed connection unit, an anti-falling control part, and a lifting control part and a rotation control part which are coaxially mounted, and the electric control part for providing power realizes lifting or rotation of the anti-falling control part through the lifting control part and the rotation control part which are connected with the electric control part. The anti-dropping clamp can ensure that the upper die blade can be clamped on the die shell more conveniently and stably, and can also be disassembled quickly, so that the time required for die assembly is saved, and heavy loss caused by failure die assembly due to curing of structural adhesive is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to large -scale wind turbine blade mould field, concretely is a kind of wind turbine blade mould prevents blade from falling when clamping electric control full-automatic clamp. BACKGROUND

[0002] Wind power generation is one of the most promising new energy generation technologies in the world today, and its large-scale research and utilization has become the focus of new energy development in the 21st century in the world. Wind turbine is the mechanical work conversion of wind energy, mechanical work drives the rotor rotation, and ultimately outputs alternating current power equipment. The principle of wind power generation is to use wind power to drive wind power blade rotation, and then to improve the speed of rotation through speed increaser to promote generator to generate electricity.

[0003] Blade is one of the important components of wind power generation equipment, and its demand and production cycle are also strengthened. One of the key steps in the process of making blades is to turn over the upper mold blade and press it on the lower mold blade. This process is called clamping.

[0004] Since the blade is bonded together using structural adhesive, the curing time of the structural adhesive is limited, which limits the control of clamping time. Therefore, the control of clamping time is very important, not only to control the glue time of the lower mold blade edge, but also to ensure the time of turning over and pressing the upper mold blade, and to ensure that the upper mold blade does not fall off the mold shell during the turning over process. Therefore, relying on vacuum extraction on the mold shell cannot guarantee that the upper mold blade will not fall off. At this time, we need to use a large number of clamps to clamp the upper mold blade around the edge of the upper mold shell. At the same time, when turning over in place, all clamps are removed one by one, and finally the upper mold blade is slowly pressed onto the lower mold blade to complete the entire clamping process.

[0005] For example, the Chinese patent CN 210758662 U discloses a kind of anti-falling tooling for wind power blade mold, the mold includes mold shell and mold steel frame, comprising: fixing device, for fixing on the mold steel frame, up-down adjusting device, the up-down adjusting device is connected with the fixing device, relative to the fixing device can move up and down, pressing component, for pressing the wind power blade, one end of the pressing component is connected with the up-down adjusting device, moves with the up-down adjusting device movement and moves, realizes in wind power blade production manufacturing process, blade is mechanically pressed to mold surface, prevent blade to produce larger displacement, to effectively control the misregistration of two half products after moulding, solve the quick pressing of upper half blade for blade mold, and the anti-falling tooling projects out of the range of mold, little influence to the range of activity of operating personnel.But, this technical scheme belongs to mechanical clamping, needs manual installation and adjustment one by one, low working efficiency, thereby leading to moulding time extension, very easy to let the structure glue on the lower mold solidify, thereby leading to moulding failure, high defect rate.

[0006] For example, the Chinese patent CN 209037051 U discloses a kind of wind power blade anti-falling tool, including "L" type clamp body and fixed seat, the transverse rod end of "L" type clamp body is equipped with profiled pressing plate, the profiled pressing plate is made according to the PS mold shape of shell contact side;The vertical rod of "L" type clamp body is equipped with rotary connecting piece in the middle, and the bottom is installed with the top pressing screw with cylindrical structure of inner side end face through threaded sleeve;Rotary connecting piece is connected with connecting arm through pin shaft, and the connecting arm end is fixed with fixed seat.This demolding tool can be molded by rotating "L" type clamp body, which saves working time, is easy to operate, and is safe and reliable.But this technical scheme in actual operation process, this anti-falling tool also because installation efficiency is low, because the structure glue on the lower mold solidifies due to too long moulding time, thus there is the risk of moulding failure. Utility model content

[0007] The utility model discloses a kind of full-automatic wind power blade moulding anti-falling clamps, the anti-falling clamp can ensure that the upper mould blade is more conveniently and stably clamped on mold shell, simultaneously can also be quickly removed, so as to save the time required for moulding, prevent the significant loss caused by failure moulding due to structure glue solidification.

[0008] Technical scheme: in order to realize the above object, the utility model provides a kind of full-automatic wind power blade moulding anti-falling clamps, including; electric control portion, fixed connection unit, anti-falling control portion, and coaxial installation's lifting control portion and rotating control portion, for providing power electric control portion is connected with its lifting control portion and rotating control portion and realizes the lifting or rotation of anti-falling control portion;

[0009] The lifting control part is sleeved outside the rotating control part, the electric control part is located below the lifting control part and the rotating control part, the anti-falling control part is located above the lifting control part and the rotating control part, and the rotating control part is fixedly installed on the steel frame of the upper die through the fixed connection unit.

[0010] As a further preferred embodiment of the utility model, the electric control part comprises a servo reduction motor and a central control end, signals are sent to the servo reduction motor through the central control end, and the output end of the servo reduction motor is connected with the lifting control part or the rotating control part to realize the lifting or rotation of the anti-falling control part.

[0011] As a further preferred embodiment of the utility model, the anti-falling control part comprises a circular nut, a pressing plate and an upper and lower sliding pipe, the U-shaped hole provided on the pressing plate is clamped in the limiting groove at the top end of the upper and lower sliding pipe, the circular nut is sleeved on the top end portion of the upper and lower sliding pipe penetrating through the pressing plate, thereby realizing the vertical installation of the pressing plate and the upper and lower sliding pipe, and the bottom end of the upper and lower sliding pipe is connected with the rotating control part.

[0012] As a further preferred embodiment of the utility model, the rotating control part comprises a guide pin, a main body guide sleeve, a rotating guide sleeve and a hollow rotating platform, the guide pin penetrates through the bottom end of the upper and lower sliding pipe in the radial direction, the two ends of the guide pin are clamped in the rotating waist-shaped grooves on the rotating guide sleeve, thereby realizing the connection of the upper and lower sliding pipe and the rotating guide sleeve, the bottom of the rotating guide sleeve is connected with the rotating table in the middle of the hollow rotating platform, and the main body guide sleeve with a hollow structure is sleeved outside the rotating guide sleeve and is fixed with the hollow rotating platform.

[0013] As a further preferred embodiment of the utility model, when the hollow rotating platform is powered by the output end of the servo reduction motor, the rotating table in the middle of the hollow rotating platform starts to rotate and drives the rotating guide sleeve connected therewith to rotate, thereby driving the rotation of the upper and lower sliding pipe clamped in the rotating guide sleeve, and realizing the rotation of the pressing plate fixedly connected with the upper and lower sliding pipe.

[0014] As a further preferred embodiment of the utility model, the length of the rotating waist-shaped groove is the distance that the upper and lower sliding pipe realizes the up and down movement.

[0015] As a further preferred embodiment of the utility model, a gap is arranged between the guide pin penetrating through the upper and lower sliding pipe and the main body guide sleeve, so as to prevent the upper and lower sliding pipe from being clamped with the main body guide sleeve during the rotation or up and down movement.

[0016] As a further preferred embodiment of the present application, the lifting control part comprises: a screw nut, a ball screw, a flat key, an oil-free bushing and a retaining ring, one end of the ball screw passes through the oil-free bushing and the retaining ring and is connected to the output end of the servo reducer motor through the flat key, the other end of the ball screw is threaded into the screw nut, and the upper end surface of the screw nut abuts against the upper and lower sliding pipes.

[0017] As a further preferred embodiment of the present application, one end of the ball screw is rotated by the power provided by the output end of the servo reducer motor, the other end of the ball screw is threaded into the screw nut located in the rotating guide sleeve, and the screw nut sleeved on the outer side of the ball screw moves up and down under the rotation of the ball screw, thereby driving the upper and lower sliding pipes abutting against the screw nut to move up and down, and finally driving the pressing plate fixedly connected with the upper and lower sliding pipes to move up and down.

[0018] The screw nut and the ball screw herein belong to a typical screw nut mechanism, and the working principle of the screw nut mechanism is to convert spiral rotation into linear movement. Since the screw nut mechanism as the prior art has very wide application in the mechanical field, the rotation of the ball screw driving the up and down movement of the screw nut will not be repeated herein.

[0019] As a further preferred embodiment of the present application, the fixed connection unit comprises a clamp fixing sleeve and a ball head plunger, one end of the clamp fixing sleeve is sleeved on the main body guide sleeve, and the other end of the clamp fixing sleeve is fixed on the steel frame of the upper die through the ball head plunger.

[0020] Working principle

[0021] Before the mold is closed, all the anti-ejection clamps at the edge of the upper die are lifted by driving the ball screw through the servo reducer motor 13, thereby lifting the upper and lower sliding pipes and lifting the pressing plate upward.

[0022] After the pressing plate is lifted to a limited height, the rotating guide sleeve is rotated through the hollow rotating platform, thereby rotating the upper and lower sliding pipes and the pressing plate, so that the pressing plate is turned to the inside of the mold and is kept perpendicular to the edge of the mold. Finally, the servo reducer motor is signaled by the central control end to control the servo reducer motor to operate in reverse, thereby moving the pressing plate downward, and the clamping of the anti-ejection clamps on the blade is completed.

[0023] After the upper die is reversed, the upper die is located directly above the lower die, and the upper die is supported by the jacks on the side of the lower die.

[0024] Finally, the action before the anti-ejection clamps are operated in reverse is performed, thereby opening the anti-ejection clamps and folding them at the edge of the mold, finally lowering the jacks, and locking the locking system on both sides of the mold, thereby completing the entire mold closing process.

[0025] Beneficial effects: a full-automatic wind power blade mold combining anti-drop clamp, compared with prior art, has the following advantages:

[0026] (1), full automation can greatly shorten the time of mold combining, thereby ensuring that the blade will not produce risk due to short curing time of structural adhesive in mold combining process;

[0027] (2), by using full automation operation, manual operation is not needed, labor cost is reduced, real-time monitoring data is realized, and work efficiency is higher;

[0028] (3), compared with manual installation of tooling for clamping, full automation mechanical clamping is more stable, more efficient, and more in line with the trend of future full automation of wind power blade manufacturing. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is the installation distribution diagram of the utility model;

[0030] Figure 2 is the structure schematic diagram of the utility model;

[0031] Figure 3 is the explosion view of the utility model;

[0032] Figure 4 is the partial half-sectional view;

[0033] Figure 5 is the structure schematic diagram of the lower mold before mold combining;

[0034] Figure 6 is the structure schematic diagram of the upper mold before mold combining;

[0035] Figure 7 is the anti-drop clamp in the initial retracted state;

[0036] Figure 8 is the state of the anti-drop clamp after rising;

[0037] Figure 9 is the structure schematic diagram of the anti-drop clamp after rotating;

[0038] Figure 10 is the schematic diagram of the anti-drop clamp in the clamping state of the upper mold after rotating;

[0039] Figure 11 is the schematic diagram of the clamping state of the anti-drop clamp before mold combining;

[0040] Figure 12 is the schematic diagram of the anti-drop clamp after mold combining. DETAILED DESCRIPTION

[0041] The utility model is further illustrated below in combination with the drawings and specific embodiments.

[0042] The fully automatic wind turbine blade clamping and anti-detachment fixture of this utility model is composed of electrical control components and mechanical components. The electrical control components are used to control the mechanical components to perform up-down and rotational movements, thereby realizing the clamping and retraction of the upper mold blade by the anti-detachment fixture.

[0043] To complete mold closing more quickly and safely, we must first ensure the stability and firmness of the tooling fixtures, so that the upper mold blade 100 will not fall off during the entire flipping process. Secondly, we must minimize the time spent installing and removing the tooling fixtures to reduce the risk of mold failure due to the structural adhesive layer 300 hardening caused by prolonged mold closing time. Figure 1 As shown, the required number of anti-detachment clamps is calculated based on the weight distribution of the blades, and the clamps are installed and arranged in a reasonable position. Then, the anti-detachment clamps are adjusted and installed according to the distance between the upper mold steel frame 101 and the upper mold housing 102. Figure 2 As shown.

[0044] The specific arrangement of the anti-detachment clamps is determined by the design and manufacturing process of different blades. The weight of a blade varies; the area closer to the blade root is thicker and heavier, while the area closer to the blade tip is thinner and lighter. Of course, modern blades are very heavy; currently, mainstream blades over 80 meters in length can reach around 25 tons, while the largest blades around 110 meters in length have reached nearly 60 tons. After calculating the weight distribution data of the blades, we determine the weight per meter of the upper mold blade area. Subtracting the suction force provided by the vacuum in that area, we obtain the minimum clamping force that the clamps must provide. Then, with a safety factor of 2, we install the corresponding number of anti-detachment clamps to ensure safety during the flipping process.

[0045] like Figure 3 As shown, the fully automatic wind turbine blade mold closing and anti-detachment clamp of this utility model includes: a round nut 1, a pressure plate 2, upper and lower sliding tubes 3, a guide pin 4, a screw nut 5, a main guide sleeve 6, a rotating guide sleeve 7, a ball screw 8, a flat key 9, an oil-free bushing 10, a retaining ring 11, a hollow rotating platform 12, a servo geared motor 13, a clamp fixing sleeve 14, and a ball plunger 15.

[0046] like Figure 4 As shown, first connect the 7 rotating guide sleeve to the rotating platform in the middle of the 12 hollow rotating platform, and then install the 6 main body guide sleeve on the 12 hollow rotating platform. This way, the rotation of the 7 rotating guide sleeve can be controlled. At the same time, the 3 upper and lower sliding tubes combined with the 4 guide pin are stuck by the limiting groove on the 7 rotating guide sleeve and rotate together. Then, the rotation is transmitted to the 2 pressure plate, so that the 2 pressure plate also rotates together.

[0047] And 13 servo deceleration motor is installed in 12 hollow rotating platform lower end, with 8 ball screw interface, combined with 9 key action, 13 servo deceleration can rotate 8 ball screw, because 8 ball screw is limited by 10 oilless bushing and 11 stop ring up and down movement, so only do rotation, and 5 screw nut will do up and down movement because of 8 ball screw rotation, 5 screw nut is installed in 3 upper and lower slide pipe lower end, so that 3 upper and lower slide pipe and 2 pressure plate do up and down movement, realize 2 pressure plate on the upper die blade clamping and opening.

[0048] After the whole assembly, it is installed to the upper die steel frame 101, according to the blade weight distribution calculation results, reasonable distribution to the edge of the upper die 100, each position of the anti drop clamp is adjusted according to the size of the site steel frame and shell, and then welded, finally connect the power supply data line to complete the whole installation.

[0049] Embodiment

[0050] The whole wind power blade mold closing process is mainly to combine the opened upper die blade 100 and the lower die blade 200 into one. In the mold opening state, the upper die and the lower die blade are first made, then the structure glue layer 300 is coated on the butt joint area of the lower die 200, and the anti drop clamp of the upper die clamps the upper die blade 100, as shown in Figure 5 、 Figure 6 , clamping the upper die blade 100 can be divided into four steps: folding, lifting, rotating and pressing down.

[0051] First, the anti drop clamp is in the initial folding state, as shown in Figure 7 , its 2 pressure plate is close to the edge of the die flange along the direction of the die, which can effectively reduce the influence on the operator when making the blade.

[0052] Secondly, the computer program controls the servo deceleration motor 13 to rotate, drives the ball screw 8, and slowly lifts the upper and lower slide pipe 3 together with the pressure plate 2 to the highest position, as shown in Figure 8 .

[0053] Then, the computer program controls the hollow rotating platform 13 to rotate, drives the rotating guide sleeve 7, and slowly rotates the upper and lower slide pipe 3 together with the pressure plate 2 by 90°, at this time, the pressure plate 2 of all anti drop clamps on the edge of the upper die is towards the inside of the upper die shell, as shown in Figure 9 .

[0054] Finally, the computer program controls the servo deceleration motor 13 to rotate again, drives the ball screw 8, and slowly moves the upper and lower slide pipe 3 together with the pressure plate 2 down, so as to clamp the upper die blade 100, as shown in Figure 10 .

[0055] After all the processes in the open mold state are completed, the mold is closed, and when the upper mold 100 is turned over 180° and buckled on top of the lower mold 200, it is supported by the jack of the lower mold 200. At this moment, all the blade anti-drop clamps need to be retracted.

[0056] The retraction and clamping steps of the anti-drop clamp are just the opposite, first lifting, then rotating, and finally shrinking. After the anti-drop clamp is retracted, the jack slowly lowers the upper mold, and the upper mold shell and the lower mold shell are immediately tightly combined and extrude the structural adhesive layer 300. Finally, the locking system on both sides of the mold buckles the upper and lower molds together, warms and solidifies the structural adhesive at the joint, completes the combination of the upper and lower blades, and is shown as follows. Figure 11 、 Figure 12

[0057] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the skilled in the art to understand the content of the present application and to implement it, and it cannot limit the protection scope of the present application. Any equivalent transformation or modification made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.​

Claims

1. A full-automatic wind power blade mold clamping anti-falling clamp, characterized in that: Including; electric control part, fixed connection unit, anti-off control part, and coaxial installation of lifting control part and rotation control part, the electric control part for providing power realizes the lifting or rotation of the anti-off control part through the lifting control part and the rotation control part connected therewith; The lifting control part is sleeved outside the rotation control part, the electric control part is located below the lifting control part and the rotation control part, and the anti-off control part is located above the lifting control part and the rotation control part, and the rotation control part is fixedly installed on the steel frame (101) of the upper die through the fixed connection unit.

2. The full-automatic wind power blade mold clamping anti-falling clamp according to claim 1, characterized in that: The electric control part includes a servo reduction motor (13) and a central control end, signals are sent to the servo reduction motor (13) through the central control end, and the output end of the servo reduction motor (13) is connected with the lifting control part or the rotation control part to realize the lifting or rotation of the anti-off control part.

3. The full-automatic wind power blade mold clamping anti-falling clamp according to claim 1, characterized in that: The anti-off control part includes a circular nut (1), a pressing plate (2) and an upper and lower sliding pipe (3), the U-shaped hole on the pressing plate (2) is clamped in the limiting groove at the top end of the upper and lower sliding pipe (3), the circular nut (1) is sleeved on the top end portion of the upper and lower sliding pipe (3) penetrating through the pressing plate (2), thereby realizing the vertical installation of the pressing plate (2) and the upper and lower sliding pipe (3), and the bottom end of the upper and lower sliding pipe (3) is connected with the rotation control part.

4. The full-automatic wind power blade mold clamping anti-falling clamp of claim 1, wherein: The rotation control part includes a guide pin (4), a main guide sleeve (6), a rotation guide sleeve (7) and a hollow rotation platform (12), the guide pin (4) penetrates through the bottom end of the upper and lower sliding pipe (3) in the radial direction, the two ends of the guide pin (4) are clamped in the rotation waist-shaped grooves (71) on the rotation guide sleeve (7), thereby realizing the connection of the upper and lower sliding pipe (3) and the rotation guide sleeve (7), the bottom of the rotation guide sleeve (7) is connected with the rotation table in the middle of the hollow rotation platform (12), and the main guide sleeve (6) with a hollow structure is sleeved outside the rotation guide sleeve (7) and is fixed with the hollow rotation platform (12).

5. The full-automatic wind power blade mold clamping anti-falling clamp according to claim 4, characterized in that: The hollow rotation platform (12) starts to rotate after being powered by the output end of the servo reduction motor (13), the rotation table in the middle of the hollow rotation platform (12) starts to rotate and drives the rotation guide sleeve (7) connected therewith to rotate, thereby driving the rotation of the upper and lower sliding pipe (3) clamped in the rotation guide sleeve (7), and thereby realizing the rotation of the pressing plate (2) fixedly connected with the upper and lower sliding pipe (3).

6. The full-automatic wind power blade mold clamping anti-falling clamp of claim 4, wherein: The length of the rotation waist-shaped groove (71) is the distance of the upper and lower sliding pipe (3) to realize the up and down movement.

7. The full-automatic wind power blade mold clamping anti-falling clamp of claim 4, wherein: A gap is arranged between the guide pin (4) penetrating through the upper and lower sliding pipe (3) and the main guide sleeve (6).

8. The full-automatic wind power blade mold clamping anti-falling clamp of claim 1, wherein: The lifting control part includes a screw rod nut (5), a ball screw (8), a flat key (9), an oil-free bushing (10) and a check ring (11), one end of the ball screw (8) penetrates through the oil-free bushing (10) and the check ring (11), is connected with the output end of the servo reduction motor (13) through the flat key (9), the other end of the ball screw (8) penetrates through the screw rod nut (5), and the upper end surface of the screw rod nut (5) abuts against the upper and lower sliding pipe (3).

9. The full-automatic wind power blade mold clamping anti-falling clamp according to claim 8, characterized in that: The one end of the ball screw (8) is powered to rotate by the output end of the servo deceleration motor (13), the other end of the ball screw (8) is threaded on the screw nut (5) located in the rotating guide sleeve (7), the screw nut (5) sleeved on the outer side of the ball screw (8) is moved up and down under the rotation of the ball screw (8), so as to drive the up and down sliding pipe (3) abutting against the screw nut (5) to move up and down, and finally realize the up and down movement of the pressing plate (2) fixedly connected with the up and down sliding pipe (3).

10. The full-automatic wind power blade mold clamping anti-falling clamp of claim 1, wherein: The fixed connection unit comprises a clamp fixing sleeve (14) and a ball head plunger (15), one end of the clamp fixing sleeve (14) is sleeved on the main body guide sleeve (6), and the other end of the clamp fixing sleeve (14) is fixed on the steel frame (101) of the upper die through the ball head plunger (15).

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