Extended blade mold closing tool

Abstract

The utility model discloses an extension blade mold closing tool which comprises an original blade clamping mechanism and an extension section clamping mechanism, and the original blade clamping mechanism comprises a fixed frame, a wing-shaped clamping groove and an original blade pressing mechanism; the two sides of the bottom of the fixed frame are each fixedly provided with a pair of sliding rails, an extension joint clamping mechanism vertically sliding relative to the variable-pitch axis of an original blade is arranged between the bottoms of each pair of sliding rails in a sliding mode, and the two extension joint clamping mechanisms are symmetrically arranged. The extension joint clamping mechanism comprises a sliding frame, an extension joint pressing mechanism and a clamping mechanism. The extension joint clamping mechanism has the advantages that the extension joint clamping mechanism can slide along the track, so that the PS surface shell and the SS surface shell of the extension joint are attached to the surfaces of the two sides of the original blade in the left-right direction, the phenomenon that the extension joint makes contact with the original blade and rubs glue is avoided in the process, and the bonding quality is guaranteed; moreover, through the cooperation of the telescopic rod and the connecting rod, the clamping position of the fixing clamp can be adjusted, and the positioning accuracy is ensured; and the wing-shaped clamping grooves can be replaced, so that the device is suitable for blades of any model and high in applicability.

Description

Technical field:

[0001] The utility model relates to the technical field of wind power blades, in particular to an extended blade mold tooling. Background technology:

[0002] When the wind turbine blades are extended, the extension section needs to be installed on the tip of the original blade. At present, the extension section and the original blade are mostly connected by a sleeve method, that is, first apply structural glue on the outside of the original blade in the sleeve area, and then insert the extension section from the tip of the original blade, so that the overlapping area of ​​the extension section and the original blade are bonded by structural glue. However, it is inevitable that the extension section and the original blade will touch and rub against the glue during the sleeve process. This rubbing of glue will become more and more obvious as the length of the sleeve area increases, seriously affecting the bonding quality.

[0003] To solve the problem of glue rubbing, the air mold can be used to divide the extension section into two parts, which are composed of a PS face shell and an SS face shell. During installation, first apply structural glue to the outside of the original blade in the socket area, and then bond the PS face shell and the SS face shell to both sides of the original blade, and then use a tightening belt to tie and assist in fixing. Although the above method solves the problem of glue rubbing, due to the long length of the extension section, the accuracy of its spanwise positioning and chordwise positioning cannot be guaranteed during the joint mold, which will seriously affect the conformity of the extension wing and the original blade, which is not conducive to power generation. Utility model content:

[0004] The utility model aims to provide a tooling for extending a blade mold.

[0005] The utility model is implemented by the following technical scheme: an extended blade clamping tooling, which includes an original blade clamping mechanism and an extended section clamping mechanism, the original blade clamping mechanism includes a fixed frame, an airfoil slot and an original blade pressing mechanism, an airfoil slot is fixed on one side of the interior of the fixed frame, the notch of the airfoil slot is an arc-shaped notch matching the shape of the original blade, and the arc-shaped notch is arranged horizontally toward the interior of the fixed frame; an original blade pressing mechanism is installed on the fixed frame opposite to the arc-shaped notch, the arc-shaped notch and the pressure plate of the original blade pressing mechanism are in contact with two surfaces of the original blade respectively; A pair of slide rails are fixed on both sides of the bottom of the frame, and an extension section clamping mechanism that slides vertically relative to the pitch axis of the original blade is slidably provided between the bottom of each pair of the slide rails, and the two extension section clamping mechanisms are symmetrically arranged; the extension section clamping mechanism includes a sliding frame, an extension section clamping mechanism and a clamping mechanism, the top of the sliding frame slides along the slide rails, and a plurality of clamping mechanisms for clamping the extended folded edges of the leading and trailing edges of the extension section are arranged on both sides of the sliding frame; a plurality of extension section clamping mechanisms are installed on the sliding frame, and the pressure plate of the extension section clamping mechanism is in contact with the outer surface of the extension section.

[0006] Furthermore, a roller is rotatably provided on the top of the sliding frame and rolls along the sliding rail.

[0007] Furthermore, a push-pull mechanism is provided on the slide rail for driving the extension section clamping mechanism to move along the corresponding slide rail.

[0008] Furthermore, the push-pull mechanism is any one of an electric push rod, an oil cylinder or a gas cylinder, one end of the push-pull mechanism is fixed to the slide rail, and the other end of the push-pull mechanism is fixed to the slide frame.

[0009] Furthermore, a plurality of laterally arranged connecting rods are fixed inside the sliding frame, and the clamping mechanism is slidably arranged along the connecting rods.

[0010] Furthermore, the clamping mechanism includes a telescopic rod and a fixing clamp, one end of the telescopic rod is provided with a sliding groove sliding along the connecting rod, and the fixing clamp is fixed to the other end of the telescopic rod.

[0011] Furthermore, scale lines are arranged along the length direction of the piston rod of the telescopic rod.

[0012] Furthermore, the original leaf clamping mechanism and the extension section clamping mechanism have the same structure, and the extension section clamping mechanism includes a pressure plate and a pressure screw, and the inner end of the pressure screw is connected to the pressure plate through a universal ball head; the pressure screw of the extension section clamping mechanism is threadedly connected to the sliding frame, and the pressure screw of the original leaf clamping mechanism is threadedly connected to the fixed frame.

[0013] Furthermore, the wing-shaped slot is connected to the fixing frame by bolts.

[0014] Furthermore, fastening screws are fixed on both sides of the bottom of the frame of one extension section clamping mechanism, and threaded holes matching the fastening screws are respectively opened on both sides of the bottom of the frame of the other extension section clamping mechanism.

[0015] The advantages of the utility model are as follows: the clamping mechanism of the extension section can slide along the track, and then the PS surface shell and the SS surface shell of the extension section can be respectively attached to the left and right surfaces of the two sides of the original blade. During the process, there will be no phenomenon of the extension section and the original blade touching and rubbing the glue, thereby ensuring the bonding quality; and, through the cooperation of the telescopic rod and the connecting rod, the clamping position of the fixed clamp can be adjusted, thereby ensuring the accuracy of positioning; the wing-shaped slot can be replaced, and it is suitable for blades of any model, with strong applicability. Description of the drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the clamping mechanism structure.

[0018] Figure 3 This is the piston rod structure diagram of the clamping mechanism.

[0019] Figure 4 It is a structural diagram of the extension section.

[0020] Figure 5 This is a usage status reference diagram of this embodiment.

[0021] Figure 6 This is another reference diagram of the usage state of this embodiment.

[0022] Tag Name

[0023] 1-blade clamping mechanism, 11-fixed frame, 12-wing-shaped slot, 13-original blade clamping mechanism, 14-arc-shaped notch, 15-bolt, 2-extension section clamping mechanism, 21-sliding frame, 22-extension section clamping mechanism, 221-pressure plate, 222-pressure screw, 223-universal ball head, 23-clamping mechanism, 231-telescopic rod, 232-fixed clip, 234-slide, 235-fixed sleeve, 236-piston rod, 237-long hole, 238-rack, 239-rotating shaft, 240-gear, 241-knob, 242-scale line, 24-roller, 25-connecting rod, 3-original blade, 4-slide rail, 5-extension section, 6-push-pull mechanism, 7-fastening screw, 8-threaded hole, 9-expansion folding edge. Specific implementation method:

[0024] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] like Figures 1 to 6As shown, an extended blade clamping tooling includes an original blade clamping mechanism 1 and an extended section clamping mechanism 2. The original blade clamping mechanism 1 includes a fixed frame 11, an airfoil slot 12 and an original blade clamping mechanism 13. The airfoil slot 12 is fixed on one side of the interior of the fixed frame 11. The notch of the airfoil slot 12 is an arc-shaped notch 14 that matches the shape of the original blade 3, and the arc-shaped notch 14 is arranged horizontally toward the interior of the fixed frame 11. The airfoil slot 12 and the fixed frame 11 are detachably connected by bolts 15. The airfoil slot 12 with arc-shaped notches 14 of different curvatures can be replaced according to different original blades 3 to meet different usage requirements. The original blade clamping mechanism 13 is installed on the fixed frame 11 opposite to the arc-shaped notch 14. The arc-shaped notch 14 and the pressure plate 221 of the original blade clamping mechanism are in contact with the two surfaces of the original blade 3 respectively. The original blade 3 can be clamped and fixed inside the airfoil slot 12 by the original leaf clamping mechanism 13.

[0026] A pair of slide rails 4 are fixed on both sides of the bottom of the fixed frame 11, and an extension section clamping mechanism 2 that slides vertically relative to the pitch axis of the original blade 3 is slidably provided between the bottoms of each pair of slide rails 4, and the two extension section clamping mechanisms 2 are symmetrically arranged; the extension section clamping mechanism 2 includes a sliding frame 21, an extension section clamping mechanism 22 and a clamping mechanism 23, the top of the sliding frame 21 slides along the slide rail 4, and a roller 24 that rolls along the slide rail 4 is provided at the top of the sliding frame 21, and the extension section clamping mechanism 2 is connected to the slide rail 4 through the roller 24. A push-pull mechanism 6 is provided on the slide rail 4 to drive the extension section clamping mechanism 2 to move along the corresponding slide rail 4, and the push-pull mechanism 6 is any one of an electric push rod, an oil cylinder or an air cylinder, one end of the push-pull mechanism 6 is fixed to the slide rail 4, and the other end of the push-pull mechanism 6 is fixed to the slide frame 21. The two clamping mechanisms 23 can be controlled to move on the slide rail 4 through the push-pull mechanism 6 to realize automatic control instead of manual operation.

[0027] On both sides of the sliding frame 21, there are a number of clamping mechanisms 23 for clamping the extended folding edges 9 of the front and rear edges of the extension section 5; the two extension section clamping mechanisms 2 respectively clamp the PS surface shell and the SS surface shell of the extension section 5 through their corresponding clamping mechanisms 23, and then the two extension section clamping mechanisms 2 are relatively slid along the track until they fit the original blade 3, and the mold closing can be completed. A number of extension section clamping mechanisms 22 are installed on the sliding frame 21, and the pressing plate 221 of the extension section clamping mechanism 22 contacts the outer surface of the extension section 5. After the mold closing, the extension section 5 can be pressed against the outside of the original blade 3 by the extension section clamping mechanism 22 to ensure the bonding effect.

[0028] A plurality of laterally arranged connecting rods 25 are fixed inside the sliding frame 21, and the clamping mechanism 23 is slidably arranged along the connecting rods 25. The clamping mechanism 23 includes a telescopic rod 231 and a fixed clamp 232. A sliding groove 234 that slides along the connecting rod 25 is arranged at one end of the telescopic rod 231, and a fixed clamp 232 is fixed at the other end of the telescopic rod 231. The telescopic rod 231 can slide along the connecting rod 25, and the relative distance between the fixed clamps of each clamping mechanism can be adjusted by adjusting the length of the telescopic rod 231, thereby meeting the use requirements of extension sections 5 of different sizes. A scale line 242 arranged along the length direction of the piston rod 236 of the telescopic rod 231 is arranged outside the piston rod 236 of the telescopic rod 231, and the scale line 242 provides a basis for adjusting the length of the telescopic rod 231, which is convenient to use. The telescopic rod 231 is a common telescopic rod 231 structure, or as shown in the present embodiment, the telescopic rod 231 includes a fixed sleeve 235 and a piston rod 236 with one end slidably inserted in the top of the fixed sleeve 235, a slide groove 234 is provided at the bottom end of the fixed sleeve 235, and a fixing clamp 232 is fixed at the top of the piston rod 236; a long hole 237 is opened in the middle of the piston rod 236, and a rack 238 is fixed on a hole wall on one side of the long hole 237; a rotating shaft 239 is rotatably provided on the side of the fixed sleeve 235, one end of the rotating shaft 239 is rotatably connected to the inner wall of the fixed sleeve 235, the other end of the rotating shaft 239 is inserted into the outside of the fixed sleeve 235, and a knob 241 is fixed to the other end of the rotating shaft 239; the rotating shaft 239 is inserted into the inside of the long hole 237, and a gear 240 meshing with the rack 238 is fixed on the outside of the rotating shaft 239. The rotating shaft 239 can be rotated in the fixed sleeve 235 by rotating the knob 241, thereby driving the gear 240 to rotate. The piston rod 236 is driven to extend or retract through the cooperation between the gear 240 and the rack 238.

[0029] The original leaf pressing mechanism 13 and the extension section pressing mechanism 22 have the same structure. The extension section pressing mechanism 22 includes a pressing plate 221 and a pressing screw 222. The inner end of the pressing screw 222 is connected to the pressing plate 221 through a universal ball head 223. The pressing screw 222 of the extension section pressing mechanism 22 is threadedly connected to the sliding frame 21, and the pressing screw 222 of the original leaf pressing mechanism 13 is threadedly connected to the fixed frame 11. By screwing the pressing screw 222 on the corresponding sliding frame 21 or fixed frame 11, the pressing plate 221 can be fitted with the outer surface of the corresponding extension section 5 or original leaf 3 to achieve pressing and fixing.

[0030] A fastening screw 7 is fixed on both sides of the bottom of the frame of one extension section clamping mechanism 2, and a threaded hole 8 matching the fastening screw 7 is respectively opened on both sides of the bottom of the frame of the other extension section clamping mechanism 2. The two extension section clamping mechanisms 2 are connected and fixed by the cooperation of the fastening screw 7 and the threaded hole 8.

[0031] like Figure 4As shown, this embodiment is applied to an extension section 5 having an extended edge on the outer edge, and the specific use process is as follows:

[0032] (1) Ground installation

[0033] First, adjust the position of each clamping mechanism 23 on the connecting rod 25 and the length of the telescopic rod 231 on the ground according to the shape of the extension section 5; and install the PS surface and SS surface of the extension section 5 on the inner side of the sliding frame 21 of the two extension section clamping mechanisms 2 on the ground through the fixing clamps of the clamping mechanism 23.

[0034] (2) Hoisting

[0035] Next, hoist the tooling and the extension section 5 as a whole to a high altitude. During the hoisting process, pass the tip of the original blade 3 through the gap between the airfoil slot 12 and the original blade clamping mechanism, and tighten the pressure screw 222 of the original blade clamping mechanism 13 until the pressure plate 221 of the original blade clamping mechanism 13 fits with the outer surface of the original blade 3;

[0036] (3) Trial mold closing

[0037] The PS surface and SS surface of the extension section 5 are pushed relative to each other to contact the surface of the original blade 3 by the push-pull mechanism 6, and the length of the telescopic rod 231 is adjusted during the process to ensure that the PS surface and SS surface of the extension section 5 are completely in contact with the sleeve area of ​​the original blade 3;

[0038] (4) Gluing

[0039] After the trial mold closing is completed, the two extension section clamping mechanisms 2 are separated by the push-pull mechanism 6, and then the structural glue is applied to the sleeve area of ​​the original blade 3;

[0040] (5) Mold closing

[0041] The PS surface and SS surface of the extension section 5 are pushed relative to each other to contact the surface of the original blade 3 through the push-pull mechanism 6, and the expanded folded edge 9 of the extension section 5 is connected with the bolt 15 to achieve locking to prevent the extension section clamping mechanism 22 from deviating when pressurized; then the sliding frames 21 of the two extension section clamping mechanisms 2 are connected and fixed by tightening the screw 7; finally, the PS surface and SS surface of the extension section 5 are tightened by the extension section clamping mechanism 22, and the blade tip of the extension section 5 is tied and fixed with a tightening belt.

[0042] (6) Mold opening

[0043] After the structural adhesive is cured, loosen the extension section clamping mechanism 22 and the extension section clamping mechanism 2, shorten the push-pull mechanism 6, loosen the original leaf clamping mechanism 13, remove all tooling, cut off the expanded folded edges 9 at the front and rear edges of the extension section 5, and grind the cut surface.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A blade extension mold fixture, characterized in that: It includes an original blade clamping mechanism and an extension section clamping mechanism, the original blade clamping mechanism includes a fixed frame, an airfoil slot and an original blade pressing mechanism, an airfoil slot is fixed on one side of the interior of the fixed frame, the notch of the airfoil slot is an arc-shaped notch matching the shape of the original blade, and the arc-shaped notch is arranged horizontally toward the interior of the fixed frame; An original leaf pressing mechanism is installed on the fixed frame opposite to the arc-shaped notch, and the arc-shaped notch and the pressing plate of the original leaf pressing mechanism are in contact with two surfaces of the original leaf respectively; A pair of slide rails are fixed on both sides of the bottom of the fixed frame, and an extension section clamping mechanism that slides vertically relative to the pitch axis of the original blade is slidably provided between the bottom of each pair of the slide rails, and the two extension section clamping mechanisms are symmetrically arranged; the extension section clamping mechanism includes a sliding frame, an extension section clamping mechanism and a clamping mechanism, the top of the sliding frame slides along the slide rails, and a plurality of clamping mechanisms for clamping the extended folded edges of the leading and trailing edges of the extension section are arranged on both sides of the sliding frame; a plurality of extension section clamping mechanisms are installed on the sliding frame, and the pressure plate of the extension section clamping mechanism is in contact with the outer surface of the extension section.

2. The extended blade mold clamping tooling according to claim 1, characterized in that: A roller is rotatably provided on the top of the sliding frame and rolls along the sliding rail.

3. The extended blade mold fixture according to claim 1, characterized in that: A push-pull mechanism is arranged on the slide rail to drive the extension section clamping mechanism to move along the corresponding slide rail.

4. The extended blade mold clamping tooling according to claim 3, characterized in that: The push-pull mechanism is any one of an electric push rod, an oil cylinder or a gas cylinder. One end of the push-pull mechanism is fixed to the slide rail, and the other end of the push-pull mechanism is fixed to the slide frame.

5. The blade extension mold fixture according to claim 1, characterized in that: A plurality of laterally arranged connecting rods are fixed inside the sliding frame, and the clamping mechanism is slidably arranged along the connecting rods.

6. The extended blade mold clamping tooling according to claim 5, characterized in that: The clamping mechanism comprises a telescopic rod and a fixing clamp, one end of the telescopic rod is provided with a sliding groove sliding along the connecting rod, and the fixing clamp is fixed to the other end of the telescopic rod.

7. The extended blade mold clamping tooling according to claim 6, characterized in that: The piston rod of the telescopic rod is provided with scale lines arranged along the length direction thereof.

8. The extended blade mold clamping tooling according to claim 1, characterized in that: The structures of the original leaf clamping mechanism and the extension section clamping mechanism are the same. The extension section clamping mechanism includes a pressure plate and a pressure screw. The inner end of the pressure screw is connected to the pressure plate through a universal ball head; the pressure screw of the extension section clamping mechanism is connected to the sliding frame through a threaded connection, and the pressure screw of the original leaf clamping mechanism is connected to the fixed frame through a threaded connection.

9. The extended blade mold clamping tooling according to claim 1, characterized in that: The wing-shaped slot is connected to the fixing frame via bolts.

10. The extended blade mold clamping tooling according to claim 1, characterized in that: Fastening screws are fixed on both sides of the bottom of the frame of one extension section clamping mechanism, and threaded holes matching the fastening screws are respectively opened on both sides of the bottom of the frame of the other extension section clamping mechanism.

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