Abstract: A direct tensile and acoustic testing machine under rock seepage includes a sample and a support frame. A top of the support frame is fixed with a top plate, a bearing plate is provided above the top plate, the bearing plate is provided with a plurality of vertical force transferring rods, the force transferring rods vertically penetrate through the top plate and sliding fit with the top plate, lower ends of the force transferring rods are provided with a tensile base, a top of the tensile base is provided with a lower clamp holder, a bottom of the top plate is provided with an upper clamp holder, and a clamp center of the upper clamp holder overlaps with a clamp center of the lower clamp holder. An acoustic component and a seepage component are provided in the upper clamp holder and the lower clamp holder.

Abstract: A rock direct tensile test platform suitable for all material test machines includes a support frame. A top of the support frame is fixed with a top plate, and a bearing plate is provided above the top plate. The bearing plate is provided with a plurality of vertical force transferring rods. The force transferring rods vertically penetrate through the top plate and have a sliding fit with the top plate. Lower ends of the force transferring rods are provided with a tensile base. A top of the tensile base is provided with a lower clamp holder. A bottom of the top plate is provided with an upper clamp holder, and a clamp center of the upper clamp holder coincides with a clamp center of the lower clamp holder.

Abstract: The present invention relates to a slider driving mechanism on a CNC assembly machine for assembled camshaft. The mechanism includes a servo motor (1), the host frame (5), ball screw (6), linear guides (9) and the slider body (8), wherein, the servo motor (1), ball screw (6) and linear guides (9) are mounted vertically on the host frame (5). The servo motor (1) connects with the ball screw. The slider body (8) connects with both the ball screw (6) and the linear guides (9). It is driven by a ball screw (6) and moves along a linear guides (9) in the vertical direction. The present invention is novel. It not only can greatly improve the assembly speed of cam, hexahedron on assembled camshaft and improve productivity, but also can eliminate complex gear system. It makes the manufacturing and processing more simple. The installation is also more convenient. It can further improve product quality and manufacturing precision of assembled camshaft.