ES264162U - Pneumatic or hydraulic block device of axes. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Pneumatic or hydraulic axle locking device, applicable to all types of advancement automations with fixed or variable pitch, especially feeder trucks, step by step variable stroke, in welding machines, especially for welding grills, lattices or similar, with different interbar spacing distances, essentially characterized by comprising a tubular casing provided with a perimeter straight step defining the internal edges of its mouthpieces, in whose recessed profile they seat the end flanges of a cylindrical sleeve of slightly smaller diameter, which it is inserted inside said casing, being fixed thereto at said end points, by the aid of cylindrical pieces or caps, doubly stepped, according to three coaxial sections of decreasing radius, which are plugged into the two mouths of the casing. Case; so that they clamp between its second step and the smaller cylindrical wall, to the flanges of the sleeve, anchoring them in effective retention, whose element or sleeve is made of a plastic material, deformable elastomer, or metallic, with high resistance to friction and abrasion, defining in relation to the internal walls of the casing an annular chamber, to which a compressed fluid intake and a discharge orifice, differentiated or not, is related, with the axis or stem to be blocked through this assembly, in coaxiality, for allowing the diameter of the caps that is superior, with slight tolerance, to the aforementioned stem, achieving a blockage of the stem by injecting pressure into the annular chamber, which causes a sudden deformation of the elastomeric or metallic jacket, of high resistance to the pressure and with a high coefficient of elasticity that is hugging the shaft and immobilizing it very effectively in its advance stroke. (Machine-translation by Google Translate, not legally binding)