Machining device and machining method for conical groove in surface of grooved pin

Abstract

The invention discloses a machining device and method for a conical groove in the surface of a grooved pin, and belongs to the technical field of machining. The machining device comprises a hydraulic machine used for applying pressure, an extrusion clamp used for clamping a workpiece and an extrusion tool installed in the extrusion clamp, wherein the extrusion clamp comprises a bottom plate which is arranged at the bottom end of the machining device and makes contact with a workbench, a base installed on one side of the bottom plate, an extrusion tool apron installed at the upper end of the base, a guide block installed at the upper end of the extrusion tool apron, a pressing handle connected to the interior of the base through a shaft and a movable guide sleeve arranged at the upper end of the guide block, through holes for placing workpieces are formed in the middle positions of the extrusion tool apron, the guide block and the movable guide sleeve, an extrusion cutter is installed on the outer sides of the through holes of the extrusion cutter holder and the guide block, and the device is used for machining the conical groove of the surface of the grooved pin. According to the machining device and machining method for the conical groove in surface of the grooved pin, one-time forming machining of the conical groove in the surface of the grooved pin is achieved, the shape and size precision of the conical groove is improved, and the phenomena that in the prior art, finished products are difficult to assemble, and scraps are generated and piled up are avoided.

Description

technical field [0001] The invention relates to the technical field of machining, in particular to a processing device and a processing method for tapered grooves on the surface of a grooved pin. Background technique [0002] The grooved pin in the engine is installed between the crankshaft and the crankshaft gear for the positioning of the crankshaft gear; in the prior art, a tooling is used to radially extrude the cylindrical pin, thereby forming three half-length tapered grooves on its surface. [0003] The shortcoming that prior art exists: [0004] (1) The installation of the grooved pin is difficult, and it is easy to cause chips, piles, and chips to appear during the installation process, resulting in a loose fit between the crankshaft and the gear, and it is easy to fall off after installation; [0005] (2) The tapered groove is obviously wide and deep; [0006] (3) The deformation caused by the extrusion of the cone groove is large, and the outer circle of the ent...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a processing device and processing method for tapered grooves on the surface of grooved pins, using radial extrusion technology, by setting a cleverly structured base, pressing handle, extrusion tool seat, guide block and extrusion For processing devices such as pressing tools, the tapered groove on the surface of the grooved pin processed by the processing method of this processing device effectively improves the shape and dimensional accuracy of the tapered groove, and solves the difficulties in the assembly of finished products in the prior art, and the problem of chip removal and chip accumulation question

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