Patent ID: 7124618
Filing Date: 2006-10-24
Classification: B21D,Y10T

Abstract:
1. A clamp assembly for a hydroforming die comprising: a stationary lower bed to support a lower die half of the hydroforming die; a stationary upper bed spaced above said lower bed; at least one guide post extending between said lower bed and said upper bed; a movable slide disposed between said upper bed and said lower bed and movable along said at least one guide post to support an upper die half of the hydroforming die; at least one lifting cylinder operatively connected to said movable slide to move said movable slide and the upper die half toward and away relative to the lower die half; at least one link mechanism connected to said upper bed and said movable slide to equalize a force on the hydroforming die; and at least one linkage cylinder operatively connected to said at least one link mechanism to activate said at least one link mechanism to prevent said movable slide and the upper die half from moving away from the lower die half to keep the hydroforming die closed during a hydroforming process.