Easy clamp

A clamping device for fastening an injection mold to a tool plate comprising:

• an upper part and a lower part, said lower part having a mounting surface, suitable to be arranged flat against the tool plate, and first, second, third and fourth side surfaces perpendicular to said mounting surface:
• said upper part having first, second, third and fourth side surfaces, and where said upper and lower parts are connected by a first bolt;
• where the first bolt has an axis of symmetry defining an axis;
• where a resilient member is arranged in connection with the first bolt between the upper and lower parts, concentrically with the first bolt's axis, and where the first bolt is provided with a non-threaded section such that the lower part or upper part may move along the first bolt in the direction of the axis;
• where the resilient member when unloaded retains a defined distance between the upper and lower parts;
• where at least an oblique part of said first side surface of the lower part is arranged at an oblique angle β with respect to the axis, and where at least an oblique part of said first surface of the upper part is arranged with an oblique angle −β;
• where the oblique part of the first side surface of the lower part is facing the oblique part of first side surface of the upper part such that the two first side surfaces are parallel;
• where, when the upper and lower parts are forced together the lower part's oblique surface and the upper part's oblique surface are displaced in parallel causing the surfaces parallel to the first side surfaces of the upper and lower parts to be displaced laterally with respect to the axis;
• and
• wherein the upper part's side surface opposite to the first surface is offset relative to the corresponding surface of the lower part, where the offset is the distance y, when the clamping device is unloaded, where y is between 1 mm and 10 mm.