3results about How to "Improve surface machining accuracy" patented technology

This invention discloses a cutting device and process for crankshaft machining, relating to the technical field of crankshaft machining equipment. It includes a support frame, a feeding trough, a guiding mechanism, a feeding mechanism, a tilting mechanism, a lifting mechanism, a CNC machining mechanism, a top-pressure rotation mechanism, a vibration stabilization mechanism, and a control system. The feeding trough, guiding mechanism, and feeding mechanism achieve automatic workpiece sorting and conveying; the tilting mechanism rotates the workpiece to a horizontal machining position; the lifting mechanism precisely lifts the workpiece to the machining position; the top-pressure rotation mechanism provides rotational power and works with the vibration stabilization mechanism to achieve automatic centering; the vibration stabilization mechanism detects vibration in real time through an accelerometer, and when vibration exceeds limits, drives an auxiliary pin assembly to press the crankshaft balance block, dynamically applying a damping force to counteract chatter. This invention solves the problems of large vibration, low centering accuracy, and insufficient automation in existing devices, significantly improving crankshaft machining accuracy and extending tool life, and is suitable for mass production of high-precision crankshafts.

The invention relates to the technical field of milling equipment, in particular to sectional material milling equipment which comprises a machining table and a fixing platform for fixing sectional materials, a moving platform is slidably arranged on the machining table, a sliding assembly for driving the moving platform to slide is arranged on the machining table, and a hollow conversion disc is arranged on the moving platform. A main cutter cylinder and a secondary cutter cylinder which are the same in structure are arranged on the conversion disc, mounting hole positions for mounting milling cutters are formed in the main cutter cylinder and the secondary cutter cylinder, the main cutter cylinder is coaxially and rotatably arranged on the conversion disc in a penetrating manner, a feeding plate is coaxially and rotatably arranged on the conversion disc, and the secondary cutter cylinder is rotatably arranged on the feeding plate; an avoiding arc groove allowing the secondary cutter cylinder to rotationally penetrate through is coaxially formed in the conversion disc, a milling part for driving the main cutter cylinder to rotate is arranged on the moving platform, a transmission part for transmitting torque is arranged between the main cutter cylinder and the secondary cutter cylinder, and a feeding part for driving the feeding plate to rotate is arranged on the conversion disc. The profile milling device has the effect of improving the profile milling efficiency and the surface precision.

The present invention discloses a new type of high-speed spindle tool-pulling mechanism with self-locking and force-enhancing pull claws, including a spindle rotating shaft core, a BBT tool handle, a tool handle pull nail, a water spray push rod, a self-locking force-enhancing pull claw, a pull claw outer diameter sleeve, a one-way valve, a push spring, a disc spring front gasket, a tool-pulling rod, a disc spring assembly, a disc spring middle spacer, a spindle rear cover, and a tool-releasing pressure sleeve. Compared with the prior art, the present invention has the following advantages: this type of spindle tool-pulling mechanism adopts a BBT tool system and a self-locking force-enhancing pull claw, and can apply a new process of high-pressure water spray high-speed cutting processing of the spindle center. Combining the advantages of the three, it is applied to high-speed spindles of high-end CNC machine tools, effectively ensuring the high-speed operation of the spindle, improving processing efficiency, surface processing accuracy, and stable operation, creating excellent value.