CN1298475C

CN1298475C - Surface matrix type pit machining method and apparatus

Info

Publication number: CN1298475C
Application number: CNB2004100122664A
Authority: CN
Inventors: 祝锡晶; 谢解春; 王爱玲; 孙旭东; 翟宁
Original assignee: 王爱玲
Priority date: 2004-04-30
Filing date: 2004-04-30
Publication date: 2007-02-07
Anticipated expiration: 2024-04-30
Also published as: CN1569372A

Abstract

The present invention relates to a surface matrix type pit machining method and a device thereof, which comprises a cutter bar 1, a motor 2 and a transmission shaft 3, wherein the cutter bar is provided with a rotor shaft 8 which is provided with a bearing 5 and is arranged in a bearing seat 4, and the bearing seat is fixed on the cutter bar by bolts; the motor is connected with the rotor shaft through a soft shaft, a milling cutter 6 is arranged in front of the rotor shaft at the end part of the cutter bar, and the milling cutter 6 is fastened by a cap nut 7. The milling cutter is used for processing the surface of a work piece, the milling cutter rotates and moves relative to the work piece, and the milling cutter moves in a direction which is perpendicular to the direction of the work piece in an aligning cutter mode. Under the function of three kinds of composite motion, pits on the surface of the work piece are completed in two processes of the cutting and the pressing of the milling cutter. The present invention can carry out the reprocessing of the surface without needing honing or grinding process. The processsing efficiency of components is increased, and the present invention can also be used for processing the components with high surface hardness. The pits of the surface which are processed by the present invention are distributed in a matrix form, and the pits have the advantages of good arrangement regularity and uniform distribution. The present invention is suitable for the processing of the pits of the surfaces of the components of various rubbing pairs, and is especially suitable for the processing and the shaping of the pits of the inner surfaces and the axial outer surfaces of cylinder sleeves and bushings.

Description

The surface matrix hole processing unit (plant) that declines

Technical field

The invention belongs to field of machining, relate to and adopt cutter to carry out the parts with frication pair surface matrix hole processing unit (plant) that declines.

Background technology

In plant equipment,, various friction pairs are arranged for realizing different motions and function.Be friction force and the wearing and tearing of reducing friction, improve the service life of friction pair parts, people have adopted various lubricating oil and preserved lubricating oil method and structure in friction pairs.As improve parts with frication pair case hardness, precision and degree of making slightly, open oily trough or soak in the oil sump or the like.For tribology theory, propose a kind of newer micro-elasticity tribology theory in recent years, be provided with little hole that rule is arranged on the surface of parts with frication pair, increase the oil storage of friction pair, lubricate guaranteeing.For this reason, people have proposed the processing method and the device thereof of some surface micro-pits.A kind of surface pit machining method and device are disclosed as Chinese patent ZL98115377.1.It is to use one or more spherical tool heads, and it is relatively moved along processing plane or curved surface, applies low-frequency vibration simultaneously on tool heads, relies on vibratory impulse to form little hole at work surface.Though its little hole processing unit (plant) is simple in structure, is easy to make, assembles, adjusts.But, owing to be that what to adopt is a kind of mode of hammering, being the little hole that forms after the flow of metal, the edge in little hole can highly rise, and so just needs technology such as honing to reprocess.Therefore, the process time of part is longer, and efficient is also lower.And, adopt this method also to be difficult to processing for the higher part of case hardness.

Summary of the invention

The present invention is directed to above the deficiencies in the prior art is improved, provide and use the milling cutter one-shot forming, can improve the surface micro-pit working (machining) efficiency of whole parts with frication pair, the hole processing unit (plant) can decline to the surface matrix that the surface micro-pit of harder parts with frication pair is processed.

Technical scheme of the present invention is achieved in that

A kind of surface matrix hole processing unit (plant) that declines, it is loaded on the lathe, comprising: knife bar, motor and power transmission shaft; Characteristics are that knife bar is installed on the small tool of lathe slip crate, and motor mounting is at the tail stock place, and motor and gyroaxis join by the soft power transmission shaft of flexibility, and motion is delivered to gyroaxis; The gyroaxis tape spool is housed in the bearing seat, and bearing is sat by being bolted on the knife bar; Milling cutter is installed before the gyroaxis, fastening by acorn nut.

The cutter tooth processing work surface micro-pit of milling cutter has cutting, and extruding is also arranged; That is to say that the little hole of surface of the work is to finish in two processes of cutting and extruding of milling cutter.

Decline hole processing method and device thereof of surface matrix provided by the invention compared with background technology, this device more simple in structure be easy to manufacturing.It has overcome the high shortcoming that rises in edge in the little hole of flow of metal that a kind of mode of hammering exists, and need not honing or grinding process and carries out re-surface.Improved the whole efficiency of the processing of part.And also can process for the higher part of case hardness.The surface micro-pit of its processing is matrix form and distributes, and the arrangement regulation in little hole is good, is evenly distributed.Be applicable to the processing of the surface micro-pit of various parts with frication pair, be particularly suitable for the machine-shaping in little hole of the outer surface of the inner surface of cylinder sleeve, axle bush and axle.

Description of drawings

Fig. 1 is the surface matrix hole processing unit (plant) structural front view that declines;

Fig. 2 is the surface matrix hole processing unit (plant) structure side view that declines;

Fig. 3 is the surface matrix hole processing unit (plant) structure vertical view that declines;

Fig. 4 be surface matrix decline the hole processing unit (plant) milling cutter construction figure.

The specific embodiment

Fig. 1, Fig. 2 and shown in Figure 3, surface matrix of the present invention hole processing unit (plant) that declines comprises: knife bar 1, motor 2, and power transmission shaft 3.Gyroaxis 8 is arranged on the knife bar, and the gyroaxis tape spool holds 5 and is contained in the bearing seat 4, and bearing is sat by being bolted on the knife bar; Motor is connected by flexible soft power transmission shaft 3 with gyroaxis, and milling cutter 6 is installed before the gyroaxis of the end of knife bar, and fastening by acorn nut 7.

Shown in Figure 4, surface matrix declines and cheats the milling cutter of processing unit (plant), 16 to 40 millimeters of milling cutter diameters, cutter tooth number: 4,6,8,12,16 etc.

Below be to use surface matrix to decline and cheat the process of processing unit (plant) processing cylinder sleeve:

Cylinder sleeve is installed on the main shaft of lathe, knife bar 1 is installed on the small tool of lathe slip crate, motor 2 is installed in the tail stock place, by the soft power transmission shaft 3 of flexibility motion is delivered to gyroaxis 8, gyroaxis 8 is installed on the bearing block 4 by bearing 5, milling cutter 6 is installed before the gyroaxis 8, fastening by acorn nut 7.Add man-hour, matrix declines the hole shaped device with the transverse movement of lathe slip crate, cylinder sleeve is carried out gyration with main shaft, milling cutter also carries out gyration (branch that rotating is arranged with respect to the revolution of cylinder sleeve) by the transmission of the soft power transmission shaft 3 of flexibility, by adjusting the small tool of lathe, can carry out the tool setting (to deciding the cutting-in amount) of the cutter tooth of inner surface of cylinder liner and milling cutter.Under the effect of these three compound motions, just process the surface, little hole that satisfactory matrix form is arranged at inner surface of cylinder liner.Process characteristic:

When 1, the milling cutter revolution was cut, 70% leaned on the cutter tooth of milling cutter to finish, and 30% leans on the extruding of the cutter tooth of milling cutter to finish.

2, adjust different main shaft gyration speed, different milling cutter speeds of gyration, different knife bar traverse feed speed, and cutter tooth with respect to inner surface of cylinder liner to deciding cutting-in, can process and meet different occasions, little hole molded surface of the cylinder sleeve under the different working condition requirements.

The surface micro-pit of its processing is matrix form and distributes, and the arrangement regulation in little hole is good, is evenly distributed.

Claims

1, a kind of surface matrix hole processing unit (plant) that declines, it is loaded on the lathe, comprising: knife bar (1), motor (2) and power transmission shaft (3); It is characterized in that: knife bar is installed on the small tool of lathe slip crate, motor mounting is at the tail stock place, motor and gyroaxis (8) join by flexible soft power transmission shaft (3), and the gyroaxis tape spool holds (5) and is contained in the bearing seat (4), and bearing is sat by being bolted on the knife bar; Milling cutter (6) is installed before the gyroaxis, fastening by acorn nut (7).