CN102166709A - Steel roof aluminum skirt piston machining process - Google Patents

Abstract

The invention discloses a steel roof aluminum skirt piston machining process, which comprises the following steps of: a, performing rough turning on a head and an excircle, and performing rough turning on a seam allowance and the excircle; b, roughly boring a pin hole, and milling the radius; c, performing finish turning on the seam allowance, milling a central hole, and performing semi-finish turning on the excircle and a top surface; d, performing semi-finish boring on the pin hole; e, boring the inner distance; f, checking the shape of an inner cavity; g, drilling; h, milling a spherical surface of a counter bore; i, drilling an oil return hole; j, turning a lock groove, and turning chamfering of the pin hole; k, milling an oil groove of the pin hole; l, performing finish boring on the pin hole; m, imitating an ellipse; n, turning holes and chamfering; and o, forming fitter chamfering, removing burr and flashing, and cleaning. By the steel roof aluminum skirt piston machining process, the machining accuracy is high, the process flow is precise and the quality of the machined product is high.

Description

The steel crown and aluminum skirt piston processing technology

Technical field

The present invention relates to a kind of steel crown and aluminum skirt piston processing technology.

Background technology

Traditional steel crown and aluminum skirt piston processing technology because technological process is meticulous inadequately, and on the artificial aging link technological requirement inaccuracy, cause the piston precision that processes by this kind processing technology not enough, product quality is relatively poor.

Summary of the invention

The purpose of this invention is to provide a kind of steel crown and aluminum skirt piston processing technology.

The technical scheme that the present invention is adopted for achieving the above object is: a kind of steel crown and aluminum skirt piston processing technology may further comprise the steps:

Step a, rough turn head and cylindrical, rough turn seam and cylindrical;

Step b, the heavy boring pin-and-hole mills radius;

Step c, the finish turning seam mills centre bore, half finish turning cylindrical and end face;

Steps d, half precision bored hole;

Step e, distance in the boring;

Step f checks cavity shape;

Step g, boring;

Step h mills the counterbore sphere;

Step j bores spill port;

Step k, lock annular groove, car pin-and-hole chamfering;

Step L mills the pin-and-hole oil duct;

Step m, precision bored hole;

Step n, imitative car ellipse;

Step o, car hole, chamfering;

Step p, pincers worker chamfered edge and deburring burr clean.

Boring is interior apart from being distances in boring 60,62 and 100 among the described step e.

Boring is for boring 6-8,4-13,6.5 and 2-9 holes in the described step g.

Steel crown and aluminum skirt piston processing technology of the present invention, the machining accuracy height, technological process is rigorous, and the product processed quality is higher.

Description of drawings

The invention will be further described below in conjunction with the drawings and specific embodiments.

Fig. 1 is the process chart of steel crown and aluminum skirt piston processing technology of the present invention.

The specific embodiment

As shown in Figure 1, steel crown and aluminum skirt piston processing technology of the present invention may further comprise the steps: step a, rough turn head and cylindrical, rough turn seam and cylindrical; Step b, the heavy boring pin-and-hole mills 4-25 radiuses; Step c, the finish turning seam mills centre bore, half finish turning cylindrical and end face; Steps d, half precision bored hole; Step e, distance in the boring 60,62 and 100; Step f checks cavity shape; Step g is bored 6-8,4-13,6.5 and 2-9 holes; Step h mills 4-27 counterbore spheres; Step j bores 2-6 spill ports; Step k, lock annular groove, car pin-and-hole chamfering; Step L mills the pin-and-hole oil duct; Step m, precision bored hole; Step n, imitative car ellipse; Step o, car 20 holes, 4-13,2-9,6.5 chamferings; Step p, pincers worker chamfered edge and deburring burr clean.

Claims (3)

1. a steel crown and aluminum skirt piston processing technology is characterized in that, may further comprise the steps:

Step a, rough turn head and cylindrical, rough turn seam and cylindrical;

Step b, the heavy boring pin-and-hole mills radius;

Step c, the finish turning seam mills centre bore, half finish turning cylindrical and end face;

Steps d, half precision bored hole;

Step e, distance in the boring;

Step f checks cavity shape;

Step g, boring;

Step h mills the counterbore sphere;

Step j bores spill port;

Step k, lock annular groove, car pin-and-hole chamfering;

Step L mills the pin-and-hole oil duct;

Step m, precision bored hole;

Step n, imitative car ellipse;

Step o, car hole, chamfering;

Step p, pincers worker chamfered edge and deburring burr clean.

2. steel crown and aluminum skirt piston processing technology according to claim 1 is characterized in that: boring is interior apart from being distances in boring 60,62 and 100 among the described step e.

3. steel crown and aluminum skirt piston processing technology according to claim 1 is characterized in that: boring is for boring 6-8,4-13,6.5 and 2-9 holes in the described step g.

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