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A workpiece clamping device is formed of a first handle and a second handle which is pivoted with the first handle by a pivot in conjunction with a torsion spring. The first and the second handles are provided with a clamping portion having a head end. The head end is provided with a spherical cavit

A workpiece clamping device is formed of a first handle and a second handle which is pivoted with the first handle by a pivot in conjunction with a torsion spring. The first and the second handles are provided with a clamping portion having a head end. The head end is provided with a spherical cavity and a spring for fastening a clamping block which can be adjusted in angle and surface to facilitate the clamping of workpieces of various dimensions. The first and the second handles are provided in the pivoting portions thereof with a ratchet for providing a retaining mechanism so as to hold securely a workpiece. The workpiece is let go by a press block which causes the disengagement of the ratchets.

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[ What is claimed is:] [1.]1. A workpiece clamping device comprising:a first handle provided with a first clamping portion, a first pivoting portion, and a first grip portion, said first clamping portion having a head end which is provided with a retaining rib and a stepped through hole, said first

[ What is claimed is:] [1.]1. A workpiece clamping device comprising:a first handle provided with a first clamping portion, a first pivoting portion, and a first grip portion, said first clamping portion having a head end which is provided with a retaining rib and a stepped through hole, said first pivoting portion being hollow and having an insertion slot;a second handle provided with a second clamping portion, a second pivoting portion, and a second grip portion, said second handle being fastened pivotally with said first handle by a pivot in conjunction with a spring, said second clamping portion having a head end which is provided with a retaining rib and a stepped through hole, said second pivoting portion provided with a ratchet;a retaining block provided with a ratchet which is engaged with said ratchet of said second pivoting portion of said second handle, said retaining block further provided with a spring which is disposed in said insertion slot of said first handle;a press block fastened pivotally by a pivot to said first pivoting portion of said first handle such that one end of said press block urges said retaining block, and that other end of said press block extends beyond said first grip portion of said first handle; andtwo clamping blocks each being provided in an inner side thereof with a clamping surface, and in an outer side thereof with a spherical cavity and a rib slot whereby said two clamping blocks are fastened respectively with said head ends of said first clamping portion and said second clamping portion by a fastening bolt which is fitted into a spring.