Parallel latching mechanism

The utility model provides a parallel latching mechanism because a clamp advantaged by being simple in structure, convenient in operation and high in automated degree is unable to solve low production efficiency when intended for controlling opening dimensions of post-welding workpieces during producing activities of automobile chassis parts. The parallel latching mechanism is characterized in that a driving part is connected with a vertical sliding block and drives the vertical sliding block to perform motion in a vertical direction; a vertical sliding block is provided with a driving pin inserted into chutes of horizontal sliding blocks; the driving pin is driven by the vertical sliding block to slide in the chute and drives the horizontal sliding blocks to perform motion in a horizontal direction; and the end portion of each horizontal sliding block is connected with a positioning and compacting part used for clamping a workpiece with an opening towards a opening and limiting seat. The parallel latching me