Articulated clamp fixture for wind turbine blade

A sliding bearing block arrangement, comprising:

• a fixture mount;
• a support beam having a bearing slide area;
• a bearing block configured to slide proximate the bearing slide area;
• a bearing disposed within the bearing block;
• a retention member coupled to bridge across the dropped center area and configured to prevent the bearing block from separating from the bearing slide area;
• an axle shaft portion of the fixture mount configured to engage the bearing in the bearing block to define a lateral axis of rotation of the fixture mount;
• and
• a locking member configured to rotate to interfere with movement of the fixture mount.

A bearing block, comprising:

• a block of steel having upper and lower recesses and a hole disposed through the block;
• an upper slide plate configured to engage the upper recess;
• a lower slide plate configured to engage the lower recess;
• and
• a pair of opposing flanged sleeve bearings configured to engage a first and second ends of the hole.