Patent ID: 8657275

Claim:
A material-saving and energy-saving multifunctional bench clamp, comprising: a movable clamp body; a fixed clamp body; and a transmission screw and a nut, said fixed clamp body being provided with a single holding accessory and a retractably movable locating-guiding apparatus, said retractably movable locating-guiding apparatus extending through said fixed clamp body, said movable clamp body being comprised of two parts, a left part and a right part, said right part being comprised of a cylinder guide rail slideable into an inner opening of the fixed clamp body, wherein said left part is provided with at least two work heads, each of the heads having a set of holding members installed thereon respectively, said holding accessory installed on said fixed clamp body being removably aligned with each of said set of holding members, so as to clamp a work piece between said movable clamp body and said fixed clamp body, and wherein an outer surface of said cylinder guide rail on said right part of said movable clamp body is provided with at least two longer-journeyed, axially locating-guiding key grooves cooperative with said retractably movable locating-guiding apparatus and corresponding to each of the heads on said left part, the key grooves extending along a partial length of said cylindrical guide rail toward said nut.