Method for positioning and bonding megawatt wind power blade web

The invention discloses a method for positioning and bonding a megawatt wind power blade web. The method comprises the steps as follows: firstly, positioning the web on a big beam of an SS (suction surface) shell and a big beam of a PS (pressure surface) shell, and setting the position of the web by positioning blocks; secondly, applying a mixed bonding agent into a bonding area, lifting the web onto the SS shell by a crane, slightly placing the web onto the scraped bonding agent, just clamping in a gap between the positioning blocks for the trial closing operation, and extruding the web by the weight of the PS shell to bond the web with the SS shell in a fixing way; thirdly, removing the bonding agent from the web bonding area and the front and rear edges of the PS shell; and finally, closing, curing the bonding agent and integrating the PS shell, the SS shell and the web. Through the arrangement of the positioning blocks, the web can be accurately positioned on the shells, and a bonder thickness control piece is arranged in the bonding area to control the thickness of the bonding agent so as to save the usage amount of the bonding agent in the blade closing process and avoid shortage or excessiveness of the bonding agent in the local area in the closing process.