Abstract: A zero-positioning mechanism of a metalworking machine contains: a base, a locking jig, and a pneumatic cylinder. The base includes at least one installation area. The locking jig includes a body, a slider assembly, and a fixing plate. The pneumatic cylinder includes the piston and a push unit. The body includes a through orifice, the slider assembly includes two pushers and four sliders. A respective pusher has a lower fringe, two beveled fringes, and multiple receiving orifices. A respective receiving orifice is configured to accommodate a respective one of multiple resilient elements. A respective slider is arranged on the respective beveled fringe of the respective pusher and has a conical positioning portion. The fixing plate includes a first face and a second face. The first face has multiple coupling apertures and four locking apertures, and the second face has a groove with multiple chutes.

Abstract: An auto-positioning hydraulic pneumatic fixture contains a base, at least one locking device, multiple pistons, multiple positioning modules, and multiple platforms. The base includes at least one installation zone for fixing at least one locking device. A respective one locking device includes a fixing module and a clamping module. The fixing module has a body, a connection segment, and an affix portion. The clamping module includes a positioning bolt and a pair of clamp units, and each clamp unit has a clamping face. The affix portion has a defining groove and a linear slot. The body has at least one tilted rail, and a respective one positioning module has a mounting unit and at least one locating unit. The mounting unit has two oblique faces and multiple fringes, and s respective one platform is configured to fix the respective one workpiece.

Abstract: A zero-positioning mechanism of a metalworking machine contains: a base, a locking jig, and a pneumatic cylinder. The base includes at least one installation area. The locking jig includes a body, a slider assembly, and a fixing plate. The pneumatic cylinder includes the piston and a push unit. The body includes a through orifice, the slider assembly includes two pushers and four sliders. A respective pusher has a lower fringe, two beveled fringes, and multiple receiving orifices. A respective receiving orifice is configured to accommodate a respective one of multiple resilient elements. A respective slider is arranged on the respective beveled fringe of the respective pusher and has a conical positioning portion. The fixing plate includes a first face and a second face. The first face has multiple coupling apertures and four locking apertures, and the second face has a groove with multiple chutes.

Abstract: An auto-positioning hydraulic pneumatic fixture contains a base, at least one locking device, multiple pistons, multiple positioning modules, and multiple platforms. The base includes at least one installation zone for fixing at least one locking device. A respective one locking device includes a fixing module and a clamping module. The fixing module has a body, a connection segment, and an affix portion. The clamping module includes a positioning bolt and a pair of clamp units, and each clamp unit has a clamping face. The affix portion has a defining groove and a linear slot. The body has at least one tilted rail, and a respective one positioning module has a mounting unit and at least one locating unit. The mounting unit has two oblique faces and multiple fringes, and s respective one platform is configured to fix the respective one workpiece.

Abstract: A workpiece clamp device capable for changing clamp angle is arranged on a base plane and comprises a first and a second movable blocks, a driving block, at least one first and at least one second elastic members, at least one first and at least one second cylinders, and at least one third and at least one fourth elastic members. Since the first and the second cylinders are slightly rotatably and detachably respectively embedded in the first and the second embedding grooves to make the first and the second rough surfaces be exposed and the elasticity of the third and the fourth elastic members is cooperated therewith, the first and the second rough surfaces are slightly fine-tuned based on the shapes and sizes of the workpieces so as to be suitable for clamping and fastening the workpieces with different shapes.

Abstract: A workpiece clamp device capable for changing clamp angle is arranged on a base plane and comprises a first and a second movable blocks, a driving block, at least one first and at least one second elastic members, at least one first and at least one second cylinders, and at least one third and at least one fourth elastic members. Since the first and the second cylinders are slightly rotatably and detachably respectively embedded in the first and the second embedding grooves to make the first and the second rough surfaces be exposed and the elasticity of the third and the fourth elastic members is cooperated therewith, the first and the second rough surfaces are slightly fine-tuned based on the shapes and sizes of the workpieces so as to be suitable for clamping and fastening the workpieces with different shapes.