Mechanical life test tool and test method

[0058] Embodiment 1 of the mechanical life test tool in the present invention:

[0059] like figure 1 As shown, the mechanical life test tool is used to carry out the mechanical life test of the inflatable joint, including the fixed base 11 , the support frame 21 , the pusher 31 and the cam 41 and other parts.

[0060] like figure 1 , figure 2 and image 3 , the fixed base 11 includes a machine tool connecting seat 12 and a detachable mounting plate 15 , and the machine tool connecting seat 12 includes a clamping handle 13 and a connecting plate 14 . The clamping handle 13 is in the shape of a rectangular block, protruding from the back of the connecting plate 14, and is used to be directly fixed on the turning tool holder of the lathe. Tighten the screws on the top. The connection plate 14 of the machine tool connection seat 12 is provided with four threaded holes, the detachable installation plate 15 is detachably fixed on the connection plate 14 of the machine tool conne

[0064] Embodiment 2 of the mechanical life test tool in the present invention:

[0065] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the cam 41 is an eccentric cam, which is fixed on the camshaft 42 by a cam fixing screw, while in this embodiment, such as Figure 7 , the cam 41 is a polygonal cam, and the axis of the cam wheel body 43 coincides with the axis of the camshaft 42 . Meanwhile, a threaded connection hole 44 is provided in the center of the cam wheel body 43 , an external thread is provided on the cam shaft 42 , and the cam 41 is threadedly connected and fixed on the cam shaft 42 .

[0066] Embodiment 3 of the mechanical life test tool in the present invention:

[0067] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the pushing member 31 is a pushing pin, the head is a cylindrical structure, and the end surface is a flat surface, while in this embodiment, as Figure 8 , the head of the ejector 31 is spherical. In other embodiments, the head of the ejector may also have other shapes, such as a parabolic shape, or the ejector adopts an equal-diameter ejector column.