Fan blade mold overturning machine driven by double cylinders to overturn

Abstract

The utility model discloses a fan blade mould turnover machine driven by double cylinders to turn over, which relates to the technical field of mould turnover machines and comprises a support arm, a turnover arm is movably arranged at the top end of the support arm and is rotatably connected with the support arm through a pin shaft, and the turnover arm is connected with the support arm through a pin shaft. Traction assemblies capable of rotating along with the pin shaft are symmetrically arranged on the two sides of the supporting arm, the two sets of driving sleeve bases can be driven to move through the elastic force of a driving spring, so that the two-way lead screw is driven to rotate, the other two sets of driving sleeve bases also move, and therefore the clamping arms clamp a mold. The synchronous fluted disc and the inner gear ring are separated through the electric shaft, so that a meshing locking structure between the synchronous fluted disc and the inner gear ring is released, it is guaranteed that the clamping arms can always form auxiliary clamping and fixing on the movable mold in the follow-up mold closing and opening process, a plurality of stress points are provided for the mold and a turnover machine, and it is guaranteed that the connecting position of the mold and the turnover machine is not prone to deformation or loosening; the device is well protected, and potential safety hazards during use are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of mold turning machines, in particular to a fan blade mold turning machine driven by double cylinders. Background Art

[0002] As the name suggests, a wind turbine blade mold is a mold used to manufacture wind turbine blades. When in use, the staff pours the hot-melt material into the wind turbine blade mold after mold closing, and demolds it after cooling and shaping. However, in actual applications, the length and weight of the fan blade mold are getting longer and longer. During the process of mold closing and mold opening, even a slight shake will cause the blade mold to vibrate too much or twist and deform, thereby damaging the performance of the wind turbine blade. Therefore, many factories use mold turning machines to close and open the blade mold.

[0003] However, when most of the existing fan blade molds are used with a turning machine, the mold is closed and opened after the movable mold and the fixed mold are installed thereon by bolts. However, during the mold opening process, the cooled blades may be adhered to the movable mold. At this time, the required mold opening traction force is relatively large, and the force point between the movable mold and the turning machine is relatively single. During long-term use, the connection will be deformed or loosened, which not only causes certain damage to the device, but also poses a huge safety hazard. Utility Model Content

[0004] The utility model aims to provide a fan blade mold turning machine driven by double cylinders to solve the technical problem that most existing fan blade mold turning machines are prone to deformation or loosening of the movable mold mounting position on the turning machine when the mold is opened.

[0005] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0006] A fan blade mold turning machine driven by double cylinders.

[0007] It comprises a support arm, a flip arm is movably provided at the top of the support arm, and the flip arm is rotatably connected to the support arm through a pin shaft, and traction components that rotate with the pin shaft are symmetrically provided on both sides of the support arm, and a safety component for clamping the blade mold is provided on the side of the flip arm away from the support arm in the mold opening state;

[0008] The safety assembly includes an auxiliary bracket connected to the flip arm, two sets of bidirectional screws rotatably arranged inside the auxiliary bracket, and the bidirectional screws are symmetrically distributed at both ends of the auxiliary bracket, two sets of guide rods arranged inside the auxiliary bracket and below the bidirectional screws, four sets of active sleeves symmetrically sleeved at both ends of the guide rods and the bidirectional screws, a clamping arm arranged on the active sleeve for clamping the blade mold, an anti-slip block arranged at the top of the clamping arm, and a driving spring arranged on the outside of the auxiliary bracket and the bidirectional screw near the flip arm.

[0009] The two groups of active sleeves close to the driving springs are connected to the traction assembly through alloy steel cables. In the mold opening state, the alloy steel cables pull the active sleeves to squeeze the driving springs.

[0010] As a further solution of the utility model: a mold fixing plate for fixing the blade mold is installed on the side of the support arm and the flip arm in the mold opening state that is away from each other.

[0011] As a further solution of the utility model: a No. 1 oil cylinder and a No. 2 oil cylinder are rotatably arranged inside the support arm, and the top of the No. 1 oil cylinder is rotatably connected to the highest point of the flip arm in the mold opening state, and the top of the No. 2 oil cylinder is rotatably connected to the middle part of the flip arm in the mold opening state.

[0012] As a further solution of the utility model: the difference between the rotation angles of the No. 1 oil cylinder and the No. 2 oil cylinder is between 35° and 65°.

[0013] As a further solution of the utility model: a positioning bottom frame is provided at the bottom of the support arm, and a threaded hole is opened on the positioning bottom frame.

[0014] As a further solution of the utility model: the traction assembly includes a cross transmission shaft that rotates together with the pin shaft, a top plate is provided at one end of the cross transmission shaft, and a synchronous gear disc is provided on the outer sliding sleeve of the cross transmission shaft.

[0015] As a further solution of the utility model: inner gear rings meshing with synchronous gear discs are rotatably provided on both sides of the support arm, an annular groove for limiting the inner gear ring is opened on the support arm, and a limiting slider matching the annular groove is provided on the inner gear ring, a winding wheel for winding up the alloy steel cable is embedded on the outer side of the inner gear ring, and an electric shaft for driving the synchronous gear disc to move is provided on the top plate.

[0016] As a further solution of the utility model: an anti-skid pad is laid on the side wall of the clamp arm, and the material of the anti-skid pad is wear-resistant elastic rubber.

[0017] As a further solution of the utility model: guide modules for guiding the movement of the alloy steel cable are symmetrically arranged on both sides of the support arm, and the guide modules include a shell, and two groups of limiting wheels for limiting the alloy steel cable are symmetrically and rotatably arranged inside the shell.

[0018] As a further solution of the utility model: a plurality of groups of line clips and pipe sleeves are arranged on the support arm and the flip arm.

[0019] Beneficial effects of the utility model:

[0020] 1. In the utility model, the elastic force of the driving spring can be used to drive the two sets of active sleeves to move, thereby driving the bidirectional screw rod to rotate, so that the other two sets of active sleeves also move, thereby realizing the clamping of the mold by the clamping arm, and separating the synchronous gear plate and the inner gear ring through the electric shaft to release the meshing locking structure between the two, ensuring that the clamping arm can always form auxiliary clamping and fixing for the movable mold in the subsequent mold closing and mold opening process, providing multiple force points for the mold and the turning machine, ensuring that the connection between the two is not easily deformed or loosened, forming a good protection for the device, and eliminating the safety hazards during use;

[0021] 2. In the utility model, the winding of the alloy steel cable is achieved by driving the cross transmission shaft and the synchronous gear plate to rotate through the pin shaft, and then using the synchronous gear plate to drive the inner gear ring and the winding wheel to rotate. When the mold needs to be replaced, the electric shaft is used to engage the synchronous gear plate with the inner gear ring, and then the flip arm is opened. The rotation of the flip arm is used to make the winding wheel wind up the alloy steel cable, thereby driving the clamping arm to open and release the clamping fixation of the mold, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a three-dimensional schematic diagram of the whole device in the utility model;

[0024] Figure 2 It is a three-dimensional schematic diagram of the No. 1 oil cylinder in the utility model;

[0025] Figure 3 It is a three-dimensional schematic diagram of the traction assembly in the utility model;

[0026] Figure 4 It is a three-dimensional schematic diagram of the insurance component in the utility model;

[0027] Figure 5 It is a schematic diagram of the guide module structure in the utility model.

[0028] In the figure: 1. Support arm; 2. Flip arm; 3. Module fixing plate; 4. No. 1 oil cylinder; 5. No. 2 oil cylinder; 6. Positioning bottom frame; 7. Traction assembly; 71. Cross transmission shaft; 72. Top plate; 73. Synchronous gear plate; 74. Inner gear ring; 75. Winding wheel; 76. Electric shaft; 8. Insurance assembly; 81. Auxiliary bracket; 82. Bidirectional screw rod; 83. Guide rod; 84. Active sleeve; 85. Clamp arm; 86. Anti-slip block; 87. Anti-slip pad; 88. Driving spring; 9. Alloy steel cable; 10. Guide module; 101. Shell; 102. Limit wheel. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-5 As shown, a fan blade mold turning machine driven by double cylinders,

[0031] It comprises a support arm 1, a flip arm 2 is movably provided at the top of the support arm 1, and the flip arm 2 is rotatably connected to the support arm 1 through a pin shaft, and traction components 7 that rotate with the pin shaft are symmetrically provided on both sides of the support arm 1, and a safety component 8 for clamping the blade mold is provided on the side of the flip arm 2 away from the support arm 1 in the mold opening state;

[0032] Among them, the insurance component 8 includes an auxiliary bracket 81 connected to the flip arm 2, two groups of bidirectional screws 82 rotatably arranged inside the auxiliary bracket 81, and the bidirectional screws 82 are symmetrically distributed at both ends of the auxiliary bracket 81, two groups of guide rods 83 arranged inside the auxiliary bracket 81 and located below the bidirectional screw 82, four groups of active sleeves 84 symmetrically sleeved on both ends of the guide rods 83 and the bidirectional screw 82, a clamping arm 85 arranged on the active sleeve 84 for clamping the blade mold, an anti-slip block 86 arranged at the top of the clamping arm 85, and a driving spring 88 arranged on the outside of the auxiliary bracket 81 and the bidirectional screw 82 near the flip arm 2. The two groups of active sleeves 84 near the driving spring 88 are connected to the traction component 7 through an alloy steel cable 9. In the mold opening state, the alloy steel cable 9 The traction active sleeve 84 squeezes the driving spring 88, and the traction component 7 includes a cross transmission shaft 71 that rotates with the pin shaft, and a top plate 72 is provided at one end of the cross transmission shaft 71. The outer sliding sleeve of the cross transmission shaft 71 is provided with a synchronous gear disk 73, and the two sides of the support arm 1 are rotatably provided with an inner gear ring 74 that meshes with the synchronous gear disk 73. The support arm 1 is provided with an annular groove for limiting the inner gear ring 74, and the inner gear ring 74 is provided with a limiting slider matching the annular groove. The outer side of the inner gear ring 74 is embedded with a winding wheel 75 for winding the alloy steel cable 9, and the top plate 72 is provided with an electric shaft 76 for driving the synchronous gear disk 73 to move. The support arm 1 and the flip arm 2 are both welded by H-shaped steel, which has extremely high strength and can be used for blade molds. The tool forms a good support, and the angle range between the support arm 1 and the flip arm 2 is 0°~180°, which can smoothly carry out mold closing and mold opening operations. The active sleeve 84 is threadedly connected with the bidirectional screw rod 82, and the active sleeve 84 is slidably connected with the guide rod 83. The bidirectional screw rod 82 is rotatably set. When the alloy steel cable 9 pulls the two groups of active sleeves 84 to move to one end, the driving spring 88 is compressed, and the bidirectional screw rod 82 also rotates, causing the other two groups of active sleeves 84 to move in the opposite direction. At this time, the clamping arm 85 is opened. When the alloy steel cable 9 does not pull the corresponding two groups of active sleeves 84, the driving spring 88 restores its deformation and drives the corresponding two groups of active sleeves 84 to reset, and the other two groups are also reset. At this time, the clamping arm 85 is closed, and the winding of the alloy steel cable 9 is driven by the pin to drive the cross The transmission shaft 71 and the synchronous gear plate 73 rotate, and then the synchronous gear plate 73 drives the inner gear ring 74 and the winding wheel 75 to rotate. When the device has not yet installed the mold, the electric shaft 76 is started to make the synchronous gear plate 73 and the inner gear ring 74 mesh with each other, and then the flip arm 2 is opened. The rotation of the flip arm 2 makes the clamping arm 85 open, and then the mold is fixed at the predetermined point of the support arm 1 and the flip arm 2. Then the electric shaft 76 contracts to disengage the synchronous gear plate 73 from the inner gear ring 74. At this time, the meshing locking structure between the two is released, and the clamping arm 85 moves relative to each other under the action of the driving spring 88. At this time, the clamping arm 85 can form an auxiliary clamping fixation for the movable mold, and also ensure that the clamping arm 85 can always clamp the fan blade mold during the subsequent mold closing and mold opening process.It ensures that during the mold opening process, the mold and the turning machine form multiple stress points, ensuring that the connection between the two is not easily deformed or loosened, forming a good protection for the device and eliminating the potential safety hazards during use. When the mold needs to be replaced, the electric shaft 76 is used to make the synchronous gear disc 73 and the inner gear ring 74 mesh again, and then the turning arm 2 is opened to release the clamping fixation of the mold, which is convenient and quick.

[0033] In this embodiment, specifically, a module fixing plate 3 for fixing the blade mold is installed on the side away from each other of the support arm 1 and the flip arm 2 in the mold opening state, and the installation positions therebetween are one-to-one, ensuring that the fixed mold and the movable mold of the blade mold can be accurately fitted during the subsequent mold closing process.

[0034] In the present embodiment, specifically, a No. 1 oil cylinder 4 and a No. 2 oil cylinder 5 are rotatably provided inside the support arm 1, and the top of the No. 1 oil cylinder 4 is rotatably connected to the highest point of the flip arm 2 in the mold opening state, and the top of the No. 2 oil cylinder 5 is rotatably connected to the middle part of the flip arm 2 in the mold opening state. The difference in rotation angle between the No. 1 oil cylinder 4 and the No. 2 oil cylinder 5 is between 35° and 65°. In conjunction with the hydraulic synchronization valve provided on the device, the angular velocity error of the flip arm 2 in the range of 0°-180° is ≤0.5° / s, thereby preventing deformation of the mold due to non-uniform force. The device is particularly suitable for flipping large blade molds of more than 60m, and can synchronously flip with high precision. The hydraulic system used in the device adopts pressure adaptive compensation technology, which automatically switches to the pressure holding mode when the cylinder is not in motion, thereby reducing energy waste.

[0035] In this embodiment, specifically, a positioning bottom frame 6 is provided at the bottom of the support arm 1 , and a threaded hole is opened on the positioning bottom frame 6 .

[0036] In this embodiment, specifically, an anti-skid pad 87 is laid on the side wall of the clamp arm 85, and the material of the anti-skid pad 87 is wear-resistant elastic rubber. The friction coefficient of the wear-resistant elastic rubber surface of the anti-skid pad 87 is ≥0.8, and it can still maintain effective clamping in an oily environment.

[0037] In the present embodiment, specifically, guide modules 10 for guiding the movement of the alloy steel cable 9 are symmetrically arranged on both sides of the support arm 1, and the guide module 10 includes a shell 101, and two groups of limiting wheels 102 for limiting the alloy steel cable 9 are symmetrically and rotatably arranged inside the shell 101. The limiting wheels 102 of the guide module 10 form a double-point constraint on the alloy steel cable 9, play an anti-offset guiding role, and control the lateral offset of the alloy steel cable 9 within ±2mm, thereby reducing the traction loss by more than 15%.

[0038] In this embodiment, specifically, a plurality of groups of wire clips and pipe sleeves are provided on the support arm 1 and the flip arm 2, and the wire clips and pipe sleeves can fix and store the cables and hydraulic oil pipes arranged on the device.

[0039] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A fan blade mold turning machine driven by double cylinders, characterized in that: The invention comprises a support arm (1), a top end of the support arm (1) being movably provided with a flip arm (2), and the flip arm (2) being rotatably connected to the support arm (1) via a pin shaft, and traction components (7) which rotate together with the pin shaft being symmetrically provided on both sides of the support arm (1), and a safety component (8) for clamping the blade mold being provided on the side of the flip arm (2) away from the support arm (1) in the mold opening state; The safety assembly (8) comprises an auxiliary bracket (81) connected to the flip arm (2), two groups of bidirectional screw rods (82) rotatably arranged inside the auxiliary bracket (81), and the bidirectional screw rods (82) are symmetrically distributed at both ends of the auxiliary bracket (81), two groups of guide rods (83) arranged inside the auxiliary bracket (81) and below the bidirectional screw rods (82), four groups of active sleeves (84) symmetrically sleeved at both ends of the guide rods (83) and the bidirectional screw rods (82), a clamping arm (85) arranged on the active sleeve (84) for clamping the blade mold, an anti-slip block (86) arranged at the top of the clamping arm (85), and a driving spring (88) arranged on the outside of the auxiliary bracket (81) and the bidirectional screw rod (82) at one end close to the flip arm (2); The two groups of active sleeves (84) close to the driving springs (88) are connected to the traction assembly (7) via alloy steel cables (9). In the mold opening state, the alloy steel cables (9) pull the active sleeves (84) to squeeze the driving springs (88).

2. A fan blade mold turning machine driven by double cylinders according to claim 1, characterized in that: A mold assembly fixing plate (3) for fixing the blade mold is installed on the side of the support arm (1) and the flip arm (2) in the mold opening state that is away from each other.

3. The fan blade mold turning machine driven by double cylinders according to claim 1 is characterized in that: A No. 1 oil cylinder (4) and a No. 2 oil cylinder (5) are rotatably arranged inside the support arm (1), and the top end of the No. 1 oil cylinder (4) is rotatably connected to the highest point of the flip arm (2) in the mold opening state, and the top end of the No. 2 oil cylinder (5) is rotatably connected to the middle part of the flip arm (2) in the mold opening state.

4. The fan blade mold turning machine driven by double cylinders according to claim 3 is characterized in that: The difference in rotation angle between the No. 1 oil cylinder (4) and the No. 2 oil cylinder (5) is between 35° and 65°.

5. The fan blade mold turning machine driven by double cylinders according to claim 1 is characterized in that: A positioning bottom frame (6) is provided at the bottom of the support arm (1), and a threaded hole is provided on the positioning bottom frame (6).

6. The fan blade mold turning machine driven by double cylinders according to claim 1 is characterized in that: The traction assembly (7) comprises a cross transmission shaft (71) that rotates together with the pin shaft, a top plate (72) is provided at one end of the cross transmission shaft (71), and a synchronous gear disc (73) is provided on the outer sliding sleeve of the cross transmission shaft (71).

7. A fan blade mold turning machine driven by double cylinders according to claim 6, characterized in that: The support arm (1) is rotatably provided with inner gear rings (74) meshing with the synchronous gear disc (73) on both sides, the support arm (1) is provided with an annular groove for limiting the inner gear ring (74), and the inner gear ring (74) is provided with a limiting slider matching the annular groove, a reel (75) for reeling in the alloy steel cable (9) is provided on the outer side of the inner gear ring (74), and an electric shaft (76) for driving the synchronous gear disc (73) to move is provided on the top plate (72).

8. The fan blade mold turning machine driven by double cylinders according to claim 1 is characterized in that: An anti-skid pad (87) is provided on the side wall of the clamp arm (85), and the material of the anti-skid pad (87) is wear-resistant elastic rubber.

9. The fan blade mold turning machine driven by double cylinders according to claim 1 is characterized in that: Guide modules (10) for guiding the movement of the alloy steel cable (9) are symmetrically arranged on both sides of the support arm (1), and the guide module (10) comprises a shell (101), and two groups of limiting wheels (102) for limiting the position of the alloy steel cable (9) are symmetrically and rotatably arranged inside the shell (101).

10. The fan blade mold turning machine driven by double cylinders according to claim 1, characterized in that: A plurality of sets of line clips and pipe sleeves are arranged on the support arm (1) and the flip arm (2).

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