CN2150949Y

CN2150949Y - Shaft sleeve boring machine with declined head

Info

Publication number: CN2150949Y
Application number: CN 92235348
Authority: CN
Inventors: 蔡道清
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-27
Filing date: 1992-11-27
Publication date: 1993-12-29
Anticipated expiration: 2002-11-27

Abstract

The utility model relates to a bearing shell boring machine with an inclined installed boring head and two boring tools arranged on a boring tool bar. The method of the present bearing shell boring machine reducing the wall thickness of the bearing shell is realized by that a clamp is used to extrude the joint face of the bearing shell to enforce the bearing shell to generate elastic deformation, and another one layer of metal adjacent to the joint face is bored when the inner surface of the bearing shell is bored. The method is adopted; the amount of the wall thickness reduction and the size of the thickness reduction region of the bearing shell are difficult to be controlled; the quality is hard to be guaranteed; the rejection rate is high. The main axis of the boring head and the axial line of the bearing shell of the utility model form a micro included angle; two boring tools with unequal boring diameters are arranged at intervals of a certain distance on the boring tool bar. When the main axis rotates, the rotation centers of the two boring tools exist a desired center height deviation e for boring the amount of the wall thickness reduction. When the boring head of slide carriage feed along the axis direction of the bearing shell, one boring tool bores the inner surface and the other boring tool bores the amount of the wall thickness reduction to simultaneously process out the inner diameter and the amount of the wall thickness reduction of the bearing shell.

Description

Shaft sleeve boring machine with declined head

The utility model relates to a kind of boring head and tilts to install, and the bearing shell boring machine of two boring cutters is housed on boring cutter bar.Bearing shell adds man-hour, needs to process to the inner surface of bearing shell with near the wall thickness reduction amount at place, composition surface.Present bearing shell boring machine is in fact only processed the inner surface of bearing shell; And the processing of liner wall thickness attenuate amount is by anchor clamps bearing shell inwardly to be pushed near the local of composition surface, forces the bearing shell strain, will locate many borings near the composition surface and go some to realize when the boring inner surface.Use the way of extruding bearing shell, the elastic deformation amount of bearing shell and strain zone are wayward, so crudy is difficult for guaranteeing the percent defective height.Though two boring head bearing shell boring machines of number of patent application 92212275 can overcome above-mentioned shortcoming, owing to adopt two boring heads, the structure more complicated, the manufacturing cost height, and production efficiency is low.

The purpose of this utility model just is to design a kind of bearing shell that need not push and makes it strain, and only can accurately process the inner surface of bearing shell and the bearing shell boring machine of wall thickness reduction amount according to the designing requirement of bearing shell with a boring head again.

The utility model bearing shell boring machine is made up of boring head ［ 1 ］, boring cutter bar ［ 2 ］, anchor clamps ［ 6 ］, slide carriage ［ 7 ］, base ［ 8 ］ etc.It is characterized in that the main-shaft axis of boring head ［ 1 ］ and the axis of bearing shell ［ 5 ］ constitute a small angle α; The segment distance L of being separated by on boring cutter bar ［ 2 ］ installs two boring cutter ［ 3 ］ and ［ 4 ］ that the boring diameter does not wait.When boring cutter bar turned round, just there was a required eccentric amount e of processing liner wall thickness attenuate amount in the centre of gyration of boring cutter ［ 3 ］ and boring cutter ［ 4 ］.

The utility model bearing shell boring machine both can be fixed by boring head, and bearing shell is sent to, also can the bearing shell relative fixed, and boring head is sent to.

Accompanying drawing 1 is the bearing shell boring machine schematic diagram that bearing shell is sent to.Boring head ［ 1 ］ is mounted obliquely within on the base ［ 8 ］, and bearing shell ［ 5 ］ is contained on the anchor clamps ［ 6 ］, and anchor clamps ［ 6 ］ are contained on the slide carriage ［ 7 ］.Boring cutter ［ 3 ］ is used for the wall thickness reduction amount of boring bearing shell, and boring cutter ［ 4 ］ is used for the inner surface of boring bearing shell.Because boring cutter ［ 3 ］ and ［ 4 ］ alternate segment distance L on boring cutter bar, and the existence of angle α, during the boring cutter bar revolution, just there is the needed eccentric amount e of boring wall thickness reduction amount in the centre of gyration of two boring cutters.Adjust spacing L or angle α, can adjust the size of eccentric amount e.The size of wall attenuate amount is decided by adjusting boring cutter ［ 3 ］, and the size of bearing shell internal diameter is decided by adjusting boring cutter ［ 4 ］.

Accompanying drawing 2 is another kind of forms of the present utility model.With the main difference part of accompanying drawing 1 be: anchor clamps ［ 6 ］ are fixed on the base ［ 8 ］, and boring head ［ 1 ］ is mounted obliquely within on the slide carriage ［ 7 ］, when slide carriage ［ 7 ］ when horizontal direction moves, drive boring head ［ 1 ］ and finish the feed campaign.

The utility model can also be made the bearing shell boring machine of vertical or tilting with reference to the principle of accompanying drawing 1 and accompanying drawing 2.

Claims

1, a kind of double-pole bearing shell boring machine of boring head inclination, form by boring head [1], boring cutter bar [2], anchor clamps [6], slide carriage [7], base [8], it is characterized in that the main-shaft axis of boring head [1] and the axis of bearing shell [5] constitute a small angle α, go up an alternate segment distance L at boring cutter bar [2] two boring cutter [3] and [4] that the boring diameter does not wait are installed, just there are a required high deviation e in center of processing liner wall thickness attenuate amount in the main axis rotation of boring head [1], the centre of gyration of boring cutter [3] and [4].

2, according to the described bearing shell boring machine of claim 1, it is characterized in that boring head is fixed on the base ［ 8 ］, slide carriage drive bearing shell slides on base and realizes feeding.

3, according to the described bearing shell boring machine of claim 1, it is characterized in that bearing shell fixes, slide carriage drives boring head and slides and realize feeding.