Pultrusion plate laser polishing device for wind power blade main beam

Abstract

The utility model belongs to the technical field of polishing devices, and discloses a pultrusion plate laser polishing device for a wind power blade girder, which comprises a central control system and a multi-axis moving workbench which are arranged on a rack, a lifting cylinder is arranged on the rack, a lifting column is arranged in the lifting cylinder in a sliding mode, a first telescopic cylinder is arranged on the bottom side of the rack, and a second telescopic cylinder is arranged on the bottom side of the rack. The lifting column is provided with a lifting plate, and the lifting plate is provided with a spherical hinge column; the spherical hinge column is provided with a spherical hinge groove and a first limiting groove, the spherical hinge column is provided with an avoiding groove, second limiting grooves are formed in the two side walls of the interior of the avoiding groove, a displacement block is installed in the second limiting grooves in the two sides in a sliding mode, a second telescopic cylinder is installed on the lifting plate, and a fork opening is formed in the end of the displacement block. A spherical hinge head is installed in the spherical hinge groove in a spherical hinge mode, the spherical hinge head is connected with a connecting block, the connecting block is provided with a matching opening, and a matching column is installed in the matching opening; the spherical hinge head is connected with an installation support, and the installation support is provided with a pulse laser.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding devices, and in particular relates to a pultruded plate laser grinding device for a main beam of a wind turbine blade. Background Art

[0002] Wind turbine blades are the core components of wind power generation. They are driven by wind to rotate and drive the generator to generate current. The existing technology generally uses pultrusion to make the main beam or auxiliary beam of wind turbine blades. Specifically, the pultrusion process is used to make standard-sized plates, which are then laid in the main beam or auxiliary beam mold, and then the assembled plates are bonded together by vacuum infusion to form the main beam or auxiliary beam.

[0003] The pultruded plate for the main beam of wind turbine blades was born out of necessity with the iteration of the main beam process of wind turbine blades. The traditional main beam preparation process is to lay multiple layers of glass fiber cloth, then evacuate and implement the resin introduction and infusion process. Compared with the main beam pultruded plate process, this process has low fiber content, low production efficiency, and poor product quality stability. At present, the new process of pultruded plate for the main beam of wind turbine blades has solved the problems of the previous infusion process. Regarding the main beam pultruded plate process, in order to meet the secondary bonding problem of the pultruded plate and the resin, the pultruded plate is often directly applied with a release cloth on the upper and lower sides during the preparation process. When the pultruded plate is used to prepare the blade main beam, the release cloth is torn off to ensure that the surface of the plate has concave and convex textures, that is, to increase the surface roughness to increase the secondary bonding ability.

[0004] This method is currently widely used, and the main problems are:

[0005] 1. During the pultrusion process, applying the release cloth will affect the pultrusion speed and ultimately affect the production efficiency;

[0006] 2. The release cloth needs to be torn off twice, which causes waste and adds an extra process of tearing off the release cloth. Utility Model Content

[0007] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a laser grinding device for pultruded plates used in the main beam of wind turbine blades.

[0008] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0009] A pultruded plate laser grinding device for a main beam of a wind turbine blade comprises a central control system and a multi-axis movable workbench installed on a frame, wherein a lifting cylinder is installed on the frame at a middle position between the central control system and the multi-axis movable workbench, a lifting column is slidably installed in the lifting cylinder, a first telescopic cylinder whose output end is connected to the bottom of the lifting column is installed on the bottom side of the frame, a lifting plate is installed on the lifting column, and a ball joint column is installed on the lifting plate;

[0010] The ball joint column is provided with a ball joint groove and a first limit groove which are connected to each other, the ball joint column is provided with an avoidance groove which is connected to the bottom of the ball joint groove, the two side walls inside the avoidance groove are provided with second limit grooves, displacement blocks are slidably installed in the second limit grooves on both sides, the lifting plate is provided with a second telescopic cylinder whose output end is connected to the displacement block, a fork is provided at the end of the displacement block, a ball joint head is installed in the ball joint groove in a ball joint type, the ball joint head is connected to a connection block located inside the avoidance groove, the connection block is provided with a matching opening, and a matching column located in the fork is installed in the matching opening;

[0011] The ball joint head is connected with a mounting bracket, the mounting bracket is symmetrical with the connecting block, and a pulse laser is installed on the mounting bracket.

[0012] It is further defined that a guide rod is installed at the bottom of the frame, a positioning mounting frame is slidably installed on the guide rod, an infrared locator is installed on the positioning mounting frame, and a locking screw is installed on the positioning mounting frame whose output end contacts the guide rod. Such a design can use the infrared locator to emit infrared rays to the horizontal edge of the pultruded sheet and record the length of time the infrared rays are reflected back to the infrared positioning sensor to determine the position of the target pultruded sheet, so as to achieve the purpose of quickly determining the position of the sheet.

[0013] It is further defined that arc grooves are installed on both side walls inside the avoidance groove, and cylinders located in the arc grooves are installed on both sides of the connection block. Such a design further limits the moving angle range of the ball joint head.

[0014] It is further defined that the second telescopic cylinder is a double-axis telescopic cylinder, and such a design ensures the pushing and pulling force and the supporting force when stopping.

[0015] It is further defined that the mounting bracket is L-shaped, and when the back side of the mounting bracket contacts the back side of the first limiting groove, the longitudinal rod of the mounting bracket is perpendicular to the horizontal plane of the rack. Such a design makes it more convenient and quick to determine the position of the mounting bracket when used normally.

[0016] The beneficial effects of adopting the utility model are:

[0017] By adopting the structural design of the utility model, a process device is designed under the premise of effectively ensuring the preparation efficiency of the pultruded board and no longer using the demoulding cloth that needs to be torn off later. Compared with the process of the prior art, a change is made. After the pultruded board is prepared and solidified, a laser grinding treatment is performed to increase the surface roughness of the board and improve the secondary bonding ability of the pultruded board.

[0018] By adopting the structural design of the utility model, the second telescopic cylinder can be controlled to achieve fine adjustment of the angle of the pulse laser, thereby adapting to the grinding conditions requiring a certain angle to ensure the grinding effect;

[0019] By adopting the structural design of the utility model, the height can be adjusted by controlling the first telescopic cylinder, and the grinding depth can be adjusted by coordinating the power adjustment of the pulse laser, so that the surface of the pultruded plate can be ground to different depths, thereby achieving rough treatment of the surface of the pultruded plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0021] Figure 1 This is a schematic diagram of the structure of a laser grinding device for pultruded plates used in the main beam of a wind turbine blade according to the utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of a laser grinding device for pultruded plates used in the main beam of a wind turbine blade according to the utility model. Figure 2 ;

[0023] Figure 3 The cross-sectional structure of a laser grinding device for pultruded plates used in the main beam of a wind turbine blade according to the utility model is shown in FIG. Figure 1 ;

[0024] Figure 4 The cross-sectional structure of a laser grinding device for pultruded plates used in the main beam of a wind turbine blade according to the utility model is shown in FIG. Figure 2 ;

[0025] Figure 5 It is a schematic diagram of the exploded structure of the connection block position of a laser grinding device for a pultruded plate used for a main beam of a wind turbine blade according to the utility model;

[0026] The main component symbols are described as follows:

[0027] Frame 1; central control system 2; multi-axis mobile workbench 3; lifting cylinder 4; lifting column 5; first telescopic cylinder 6; lifting plate 7; ball joint column 8; ball joint groove 9; first limit groove 10; avoidance groove 11; second limit groove 12; displacement block 13; second telescopic cylinder 14; fork 15; ball joint head 16; connecting block 17; matching mouth 18; matching column 19; mounting bracket 20; pulse laser 21; guide rod 22; positioning mounting bracket 23; infrared locator 24; locking screw 25; arc groove 26; cylinder 27. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1 to Figure 5As shown, a pultruded plate laser grinding device for a main beam of a wind turbine blade of the utility model comprises a central control system 2 and a multi-axis movable workbench 3 installed on a frame 1, a lifting cylinder 4 is installed on the frame 1 at a middle position between the central control system 2 and the multi-axis movable workbench 3, a lifting column 5 is slidably installed in the lifting cylinder 4, a first telescopic cylinder 6 whose output end is connected to the bottom of the lifting column 5 is installed on the bottom side of the frame 1, a lifting plate 7 is installed on the lifting column 5, and a ball joint column 8 is installed on the lifting plate 7;

[0030] The ball joint column 8 is provided with a ball joint groove 9 and a first limit groove 10 which are connected to each other, the ball joint column 8 is provided with an avoidance groove 11 which is connected to the bottom of the ball joint groove 9, the two side walls inside the avoidance groove 11 are provided with second limit grooves 12, and displacement blocks 13 are slidably installed together with the second limit grooves 12 on both sides, the lifting plate 7 is provided with a second telescopic cylinder 14 whose output end is connected to the displacement block 13, and a fork 15 is provided at the end of the displacement block 13, the ball joint groove 9 is ball-jointedly provided with a ball joint head 16, the ball joint head 16 is connected with a connection block 17 located inside the avoidance groove 11, the connection block 17 is provided with a matching opening 18, and a matching column 19 located in the fork 15 is installed in the matching opening 18;

[0031] The ball joint head 16 is connected with a mounting bracket 20 , the mounting bracket 20 and the connecting block 17 are symmetrical to each other, and a pulse laser 21 is installed on the mounting bracket 20 .

[0032] In this embodiment, when using a pultruded plate laser grinding device for a wind turbine blade main beam, the workpiece is placed on a multi-axis movable worktable 3, and the multi-axis movable worktable 3 drives the workpiece to move, and the workpiece is ground in cooperation with the central control system 2 and the pulse laser 21. During the grinding, the first telescopic cylinder 6 is controlled to adjust the height of the mounting bracket 20, and the power of the pulse laser 21 is controlled to adjust the intensity, thereby adjusting the grinding depth;

[0033] When the angle needs to be adjusted, the second telescopic cylinder 14 is controlled to operate, driving the displacement block 13 to move in the second limit groove 12. Under the movement of the displacement block 13, the matching column 19 located in the fork 15 is pulled to move. Under the cooperation of the ball joint head 16 and the ball joint groove 9, the mounting bracket 20 begins to tilt the angle, thereby realizing the tilt of the output end of the pulse laser 21 installed on the mounting bracket 20, so as to achieve the purpose of grinding the workpiece surface with an inclination. It should be noted that the second telescopic cylinder 14 is equipped with a travel switch, which is conducive to the rapid control of the angle. This technology is a prior art and is not difficult to understand for technicians in the relevant field.

[0034] When the height needs to be adjusted, the first telescopic cylinder 6 is controlled to operate, and the lifting column 5 is lifted and lowered under the limit position of the lifting cylinder 4;

[0035] The height adjustment, power adjustment and angle tilt ensure the adaptability of the laser grinding device.

[0036] Preferably, a guide rod 22 is installed at the bottom of the frame 1, and a positioning mounting frame 23 is slidably installed on the guide rod 22. The positioning mounting frame 23 is installed with an infrared locator 24, and the positioning mounting frame 23 is installed with a locking screw 25 whose output end contacts the guide rod 22. Such a design can use the infrared locator 24 to emit infrared rays to the horizontal edge of the pultruded plate and record the length of time the infrared rays are reflected back to the infrared positioning sensor to determine the position of the target pultruded plate, so as to achieve the purpose of quickly determining the position of the plate. In fact, measures to determine the position of the pultruded plate can also be considered according to specific circumstances.

[0037] Preferably, arc grooves 26 are installed on both side walls inside the avoidance groove 11, and cylinders 27 located in the arc grooves 26 are installed on both sides of the connecting block 17. This design further limits the moving angle range of the ball joint 16. In fact, a structure that ensures the angle movement effect can also be considered according to specific circumstances.

[0038] Preferably, the second telescopic cylinder 14 is a double-axis telescopic cylinder. Such a design ensures the pushing and pulling force and the supporting force when stopping. In fact, the selection of the second telescopic cylinder 14 can also be considered according to specific circumstances.

[0039] Preferably, the mounting bracket 20 is L-shaped. When the back side of the mounting bracket 20 contacts the back side of the first limiting groove 10, the longitudinal rod of the mounting bracket 20 is perpendicular to the horizontal plane of the frame 1. Such a design makes it more convenient and quick to determine the position of the mounting bracket 20 when used normally. In fact, the matching structure between the mounting bracket 20 and the first limiting groove 10 can also be considered according to specific circumstances.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A laser grinding device for pultruded plates for wind turbine blade main beams, comprising a central control system (2) and a multi-axis movable workbench (3) mounted on a frame (1), characterized in that: The frame (1) is provided with a lifting cylinder (4) at a middle position between the central control system (2) and the multi-axis movable workbench (3), a lifting column (5) is slidably installed in the lifting cylinder (4), a first telescopic cylinder (6) whose output end is connected to the bottom of the lifting column (5) is installed on the bottom side of the frame (1), a lifting plate (7) is installed on the lifting column (5), and a ball joint column (8) is installed on the lifting plate (7); The ball joint column (8) is provided with a ball joint groove (9) and a first limit groove (10) which are connected to each other. The ball joint column (8) is provided with an avoidance groove (11) which is connected to the bottom of the ball joint groove (9). The two side walls inside the avoidance groove (11) are provided with second limit grooves (12). The second limit grooves (12) on both sides are slidably installed with displacement blocks (13). The lifting plate (7) is provided with a second telescopic cylinder (14) whose output end is connected to the displacement block (13). The end of the displacement block (13) is provided with a fork (15). The ball joint groove (9) is provided with a ball joint head (16) in a ball joint manner. The ball joint head (16) is connected to a connection block (17) located inside the avoidance groove (11). The connection block (17) is provided with a matching opening (18). A matching column (19) located in the fork opening (15) is installed in the matching opening (18). The ball joint head (16) is connected to a mounting bracket (20), the mounting bracket (20) and the connecting block (17) are symmetrical to each other, and a pulse laser (21) is installed on the mounting bracket (20).

2. A laser grinding device for pultruded plates for wind turbine blade main beams according to claim 1, characterized in that: A guide rod (22) is installed at the bottom of the frame (1), a positioning mounting frame (23) is slidably installed on the guide rod (22), an infrared locator (24) is installed on the positioning mounting frame (23), and a locking screw (25) is installed on the positioning mounting frame (23) whose output end contacts the guide rod (22).

3. A laser grinding device for pultruded plates for wind turbine blade main beams according to claim 2, characterized in that: The inner side walls of the avoidance groove (11) are provided with arc-shaped grooves (26), and the two sides of the connection block (17) are provided with cylinders (27) located in the arc-shaped grooves (26).

4. A laser grinding device for pultruded plates for wind turbine blade main beams according to claim 3, characterized in that: The second telescopic cylinder (14) is a double-axis telescopic cylinder.

5. The laser grinding device for pultruded plate for wind turbine blade main beam according to claim 4 is characterized in that: The mounting bracket (20) is L-shaped, and when the back side of the mounting bracket (20) contacts the back side of the first limiting groove (10), the longitudinal rod of the mounting bracket (20) is perpendicular to the horizontal plane of the frame (1).

Images