3results about How to "Guaranteed connection stiffness" patented technology

This utility model provides a combined tool holder using an NT50 to Capto C5 converter, comprising an NT50 tool holder, a connecting plate, and a Capto C5 tool holder. The connecting plate has a first inner hole and a second inner hole. One end of the NT50 tool holder is used to simultaneously engage with the inner conical surface and end face of the spindle of a CNC turning and boring machine. The other end of the NT50 tool holder is fixedly connected to the connecting plate by multiple first bolts. The Capto C5 tool holder is fixedly connected to the connecting plate by multiple screws. The Capto C5 tool holder includes a core sleeve, which is inserted into the second inner hole and interference-fitted with it. The inner wall of the core sleeve is triangularly conical, with the edges of the triangularly conical cone evenly distributed circumferentially and forming arcs. A second bolt for fixing the tool is threaded into the second inner hole. This utility model can achieve a tool change time of less than 2 minutes, a tool change repeatability accuracy of less than 0.005 mm, excellent connection rigidity, and can achieve cutting operations with a length-to-diameter ratio of 5, meeting the requirements of cutting operations.

The application provides an engine high-pressure oil pump system, an engine assembly and a vehicle, and relates to the technical field of vehicle structures. The engine high-pressure oil pump system comprises: a high-pressure oil pump inlet pipe, a middle-section connecting oil pipe and a high-pressure oil pump body connected in sequence; and an elastic fuel sensor arranged on the high-pressure oil pump inlet pipe; wherein the elastic fuel sensor is suitable for detecting the ethanol content of fuel in the high-pressure oil pump inlet pipe. The elastic fuel sensor is directly installed at the high-pressure oil pump inlet pipe through integrated design, the length of the oil circuit is shortened, and the detection accuracy is improved.

The application discloses a flexible connection telescopic pin mechanism, and belongs to the technical field of telescopic pin mechanisms. The telescopic pin mechanism comprises a cylinder, a fixed sleeve fixedly installed on a cylinder cover of the cylinder and covering the outside of a piston rod of the cylinder, a guide sleeve fixedly arranged at the top of the fixed sleeve, a telescopic pin body slidably connected to the guide sleeve, and an elastic compensation assembly arranged between the telescopic pin body and the piston rod of the cylinder. The telescopic pin mechanism further comprises a locking structure arranged on the telescopic pin body and connected to the elastic compensation assembly. Through cooperation of the capsule, the through hole, the positioning bead and the inflation assembly, the telescopic pin mechanism can make the capsule expand and extrude the positioning bead after the telescopic pin body is telescopically extended to a position, so that the positioning bead is extended outward and tightly pressed against a counterpart workpiece, locking is realized, the connecting rigidity between the telescopic pin body and the workpiece is ensured, and therefore the stability and reliability of operation are improved.