One-sided, temporary holding device with constant pressure functionality

摘要

Temporary holding device (410) which can be operated from one side or one side, in order to fasten at least two workpieces (191, 192; 391, 392) to one another, with a partial area of the holding device (410) being arranged in essentially aligned holes or bores made in the workpieces ( 191, 192; 391, 392), the one-sided or one-sided operable temporary holding device (410) comprising: a clamping sleeve body (130); a holding device housing (110) with a first end and a second end, the second end having a bore to enable an extending or retracting translational movement of the clamping sleeve body (130) within the holding device housing (110); an inner sleeve (620) which engages around the second end; an outer sleeve (615) which is made of a material with memory properties and which the inner sleeve (620) encloses and is held on the inner sleeve (620), with a counter surface (42 5) is present between the outer sleeve (615) and the inner sleeve (620), the outer sleeve (615) executing a relative rotational movement with respect to the inner sleeve (620) around the mating surface (425), which is induced by the clamping pressure when the at least two workpieces (191, 192; 391, 392) are fixed; anda compressible memory ring (630) which is arranged between the inner sleeve (620) and the outer sleeve (615) and which is compressed during clamping of the holding device (410), the memory ring (630) acting as a spring in the compressed state to provide a clamping force so that when clamping non-parallel workpieces (391, 392) the outer sleeve (615) is displaced under the thrust of the memory ring and / or the clamping force, the resilient material of the outer sleeve (615) being deformed in order to align itself with to realize an angled surface of a part to be clamped, and then return to its original position under the thrust of the memory ring (630).