CN202174391U

CN202174391U - Crankshaft fillet rolling machine

Info

Publication number: CN202174391U
Application number: CN2011202431916U
Authority: CN
Inventors: 李建平
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-04
Filing date: 2011-07-04
Publication date: 2012-03-28
Anticipated expiration: 2021-07-04

Abstract

The utility model provides a crankshaft fillet rolling machine and belongs to crankshaft machining equipment. A headstock is installed at one side of the upper surface of a lathe, and a tail seat is installed at the other side of the upper surface of the lathe; a rolling clamp device is installed on the upper surface of a lathe body through a frame; a plurality of shaft rods which are arranged on the rolling clamp device in parallel are installed on the frame; the lower end of a hanging plate of which the upper end is hinged on a lifting lug is hinged with the middle part of an upper rolling support frame; an upper rolling head is fixed at the front end of the upper rolling support frame; the lower side of the middle part of the upper rolling support frame is hinged with a connecting plate on a lower rolling support frame together; a lower rolling head is fixed at the front end of the lower rolling support frame; and a hydraulic oil cylinder is hinged between the rear parts of the two rolling support frames. The rolling machine can be used for rolling both a main shaft neck and a connecting rod neck, thereby greatly improving the machining efficiency, reducing the machining cost, solving the problem of worse bounce of the main shaft neck of a rolled product, reducing the deformation of a crankshaft, omitting alignment steps and improving the safety coefficient of the crankshaft. The crankshaft fillet rolling machine has stable performance and low failure rate.

Description

The crankshaft fillet roller press

Technical field

The utility model provides a kind of bent axle process equipment, especially a kind of roll unit of crankshaft fillet.

Background technology

Along with the continuous development of domestic and international engine towards aspects such as environmental protection, high-power, low emission, low noise and superchargings, as the bent axle of engine heart part, qualitative performance requirements is also increasingly high.The processing technology of tradition bent axle and the requirement that process of surface treatment is difficult to satisfy available engine show that mainly fatigue fracture takes place bent axle easily, very easily causes potential safety hazard.For improving the comprehensive fatigue strength of bent axle; Kinds of surface treatment process such as axle journal quenching, nitrogenize, shot-peening, fillet rolling are arranged at present both at home and abroad; Wherein fillet rolling is the effective means that improves crankshaft fatigue strength; The words of handling well can be accomplished " with iron for steel ", promptly substitute forged steel crankshaft with spherulitic iron crankshaft.In present crankshaft fillet knurling machine, generally be that 2-4 milled head arranged, adopt manual operations, operation inconvenience, moreover because of the gradation roll extrusion, the product trunnion that processes is beated overproof, causes bulk article to scrap, and has increased production cost; Domestic also having developed, but complex structure with the whole axle journals of the bent axle lathe of roll extrusion together, unstable properties, equipment failure rate is higher.

Summary of the invention

The utility model technical problem to be solved is a kind of crankshaft fillet roller press to be provided, to improve working (machining) efficiency and crudy.

The utility model is to realize like this; The crankshaft fillet roller press, it has lathe bed, and a top side of lathe bed is equipped with headstock, opposite side is equipped with tailstock; On described lathe bed, also the roll extrusion clamp device is installed through framework; On the roll extrusion clamp device, have many axostylus axostyles that are arranged in parallel to be installed on the framework, be respectively installed with hanger on each axostylus axostyle, the lower end that the upper end is hinged on the boatswain chair on the hanger is hinged on the middle part of roll extrusion support; The front end of last roll extrusion support is fixed with milled head; The middle part downside of last roll extrusion support is hinged with the connecting plate on the following roll extrusion support, and following roll extrusion support front end is fixed with down milled head, is hinged with hydraulic jack between the two roll extrusion support rear portions.

Adopt the crankshaft fillet roller press of said structure; Can improve working (machining) efficiency greatly to trunnion or the roll extrusion in the lump of connecting rod neck, reduce processing cost; Solved the overproof problem of beating of the product trunnion after the roll extrusion; Reduce the deflection of bent axle, saved many alignment procedures, improved the safety coefficient of bent axle.This machine stable performance, fault rate is low.

Description of drawings

Fig. 1 is the front view of the utility model structure.

Fig. 2 is the right view after the utility model removes tailstock.

The vertical view of Fig. 3 Fig. 1.

Fig. 4 is the sketch map of the headstock structure in the utility model.

Fig. 5 is the sketch map of the tailstock structure in the utility model.

Fig. 6 is the sketch map of the roll extrusion clamp device structure in the utility model.

The specific embodiment

The embodiment that provides below in conjunction with accompanying drawing explains the concrete structure and the operation principle of the utility model.

Shown in accompanying drawing; The crankshaft fillet roller press of the utility model, it has lathe bed I, and a top side of lathe bed is equipped with headstock II, opposite side is equipped with tailstock III; On described lathe bed, also roll extrusion clamp device IV is installed through framework 50; On the roll extrusion clamp device, have the many axostylus axostyles 32 that are arranged in parallel to be installed on the framework, be respectively installed with hanger 31 on each axostylus axostyle, the lower end that the upper end is hinged on the boatswain chair 33 on the hanger is hinged on the middle part of roll extrusion support 34; The front end of last roll extrusion support is fixed with milled head 35; The middle part downside of last roll extrusion support is hinged with the connecting plate 38 on the following roll extrusion support 37, and following roll extrusion support front end is fixed with down between milled head 36, the two roll extrusion support rear portions and is hinged with hydraulic jack 39.

Identical on the structure of described headstock, tailstock and the existing machine tool.As shown in Figure 4, headstock is made up of parts such as reductor 1, bearing (ball) cover 2, bearing block 3, ring flange 4, rotation finger 5, positioning core axle 6, base 7, main shaft 8, bearing 9, locking nuts 10.Reductor directly is connected to form with main shaft and rotatablely moves, and workpiece is put into positioning core axle and rotated finger, realize workpiece axially and angle locate.As shown in Figure 5, tailstock is made up of parts such as live centre 21, tailstock main shaft 22, tailstock body 23, tailstock hydraulic cylinder 24, tailstock hydraulic cylinder 25, slide plate 26 and middle base 27.The tailstock hydraulic cylinder is realized top advance fast or retreating through coupled tailstock main shaft, makes live centre hold out against or unclamps workpiece.

During use, whole trunnions that can a bent axle of an equipment roll extrusion, whole connecting rod necks of a bent axle of another equipment roll extrusion.

The job order of the utility model is following: the workpiece bent axle is packed into locate on the ring flange of headstock; The tailstock hydraulic cylinder drives the live centre top tight workpiece; Move forward to main bearing journal or connecting rod neck position successively through manually dragging upper and lower roll extrusion support; Make two milled heads on the two relative roll extrusion supports clamp main bearing journal or connecting rod neck through hydraulic jack then, headstock drives workpiece and rotates, and upper and lower milled head carries out roll extrusion to the trunnion or the connecting rod neck of bent axle.Roll extrusion makes two milled heads on the two roll extrusion supports unclamp bent axle through hydraulic jack after accomplishing, and manually two roll extrusion supports is return initial position, waits for the operation of roll extrusion next time.

Also comprise electrical system and hydraulic system when obviously, the utility model uses.

Claims

1. crankshaft fillet roller press; It has lathe bed (I), and a top side of lathe bed is equipped with headstock (II), opposite side is equipped with tailstock (III), it is characterized in that; On described lathe bed, also roll extrusion clamp device (IV) is installed through framework (50); On the roll extrusion clamp device, have the many axostylus axostyles (32) that are arranged in parallel to be installed on the framework, be respectively installed with hanger (31) on each axostylus axostyle, the lower end that the upper end is hinged on the boatswain chair (33) on the hanger is hinged on the middle part of roll extrusion support (34); The front end of last roll extrusion support is fixed with milled head (35); The middle part downside of last roll extrusion support is hinged with the connecting plate (38) on the following roll extrusion support (37), and following roll extrusion support front end is fixed with down milled head (36), is hinged with hydraulic jack (39) between the two roll extrusion support rear portions.