Multifunctional fixture with high clamping efficiency
A high-efficiency and multi-functional technology, applied in the field of parts machining, can solve the problems of low clamping efficiency of thin-shell ring parts, deformation of ring parts under local stress, etc., and achieve high clamping efficiency and high efficiency
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Embodiment 1
[0029] Such as figure 1 and figure 2 As shown, the multifunctional fixture with high clamping efficiency includes a base 1, a pressing member 5, a column 4 fixed on the base 1, and an elastic ring 9 sleeved on the column 4;
[0030] The pressing member 5 is used to apply a compressive stress along the axial direction of the elastic ring 9 to the end surface of the elastic ring 9; under the action of the compressive stress, the side of the elastic ring 9 can expand outward;
[0031] The pressing member 5 is a cam hingedly connected to the column 4, and a rotating handle for driving the cam to rotate around the hinge point is fixed on the cam.
[0032] Specifically, when the fixture is in use, the workpiece 3 which is a ring part is sleeved on the outside of the elastic ring 9, and the above elastic ring 9 is passed through the center hole on the column 4, and the above pressing member 5 is used for elastically The end face of the ring 9 exerts compressive stress along the ax...
Embodiment 2
[0035] Such as figure 1 and figure 2 As shown, this embodiment is further limited on the basis of Embodiment 1: as a specific implementation of the elastic ring 9, the shape of the elastic ring 9 is concentric and different-diameter tubular with a diameter at one end greater than that at the other end, and the elastic ring 9 A notch 91 is also provided on the side of the elastic ring 9, and the notch 91 extends from one end of the elastic ring 9 to the other end of the elastic ring 9. In this solution, under the above compressive stress, since the side of the elastic ring 9 has a gap 91, the large end of the elastic ring 9 expands outward and contacts the inner wall surface of the workpiece 3 during the elastic deformation process, so that the elastic ring 9 is large The side of the end is in surface contact or line contact with the inner wall of the workpiece 3, and the positive pressure at the surface contact or line contact realizes the fixation of the workpiece 3 on the ...
Embodiment 3
[0042] Such as figure 1 and figure 2 As shown, this embodiment further limits this case on the basis of any one of the technical solutions provided by any one of the above embodiments, in order to enable this fixture to provide a pre-determined position for the workpiece 3 before the workpiece 3 is subjected to the compressive stress of the elastic ring 9 . constraints, so as to prevent the elastic ring 9 from partially contacting the workpiece 3 in the initial state of deformation, causing the center position of the workpiece 3 to shift, and also includes a first fixing part 2 arranged on the base 1, and the first fixing part 2 is used for Preconstraint of the position of the workpiece 3 on the base 1 .
[0043] As a specific implementation of the first fixing part 2, the first fixing part 2 includes a plurality of pre-constraint subdivisions, and the plurality of pre-constraint subdivisions are evenly distributed around the column 4, and each pre-constraint subdivision inc...
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