Retractable mold built-in precision pins to locate components during layup process for fabrication of wind turbine blades
A wind turbine blade mold including a first mold surface, at least one aperture located within the first mold surface, the at least one aperture configured to receive at least one pin, the least one pin having a first end and a second end defining a length extending therebetween, the second end of the pin disposed within a pin driver, the pin driver disposed on a second mold surface, the pin driver configured to displace the at least one pin from a retracted position wherein the first end of the at least one pin is disposed below the first mold surface, to an extended position wherein the first end of the at least one pin is disposed above the first mold surface.
1. A wind turbine blade mold comprising:
a first mold surface;
at least one aperture located within the first mold surface, the at least one aperture configured to receive at least one pin;
the at least one pin having a first end and a second end defining a length extending therebetween, wherein the at least one pin is configured to pierce at least one layer of layup segment deposited on the first mold surface,
the second end of the pin disposed within a pin driver, and a sensor incorporated into the first end of the pin, the sensor configured to detect when all layers of layup segments disposed on the first mold surface have been pierced;
the pin driver disposed on a second mold surface, the pin driver configured to displace the at least one pin from a retracted position wherein the first end of the at least one pin is disposed below the first mold surface, to an extended position wherein the first end of the at least one pin is disposed above the first mold surface.
2. The mold of claim 1 , wherein the pin driver displacement generates rotational movement of the at least one pin.
3. The mold of claim 1 , wherein the pin driver displacement generates linear movement of the pin.
4. The mold of claim 1 , wherein the pin driver is displaced via rotational movement of a driver casing.
5. The mold of claim 1 , wherein the pin driver and the at least one pin are coupled via a threaded coupling.
6. The mold of claim 1 , further comprising a plurality of apertures disposed about and along a span of the first mold surface.
7. The mold of claim 1 , further comprising a bushing disposed within the at least one aperture, the bushing including a channel for receiving the at least one pin.
8. The mold of claim 1 , further comprising a sealing gasket disposed within the at least one aperture.
9. The mold of claim 1 , further comprising at least one layer of layup segments disposed on the first surface of the mold, with the second end of the at least one pin disposed above the at least one layup segment.
10. The mold of claim 1 , wherein a portion of the at least one pin is configured to engage a structural component of a wind turbine blade.
11. The mold of claim 1 , wherein the at least one pin includes a first portion telescopingly received within a second portion of the at least one pin, with both the first and second portion of the at least one pin configured to extend through the at least one layer of layup segment deposited on the first mold surface, the first portion having a round head and the second portion having a sharp head.