CN201231327Y

CN201231327Y - Boring-bar bearing device

Info

Publication number: CN201231327Y
Application number: CNU2008201153856U
Authority: CN
Inventors: 黄世勇; 黎福兆; 范瀚夫
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2008-06-13
Filing date: 2008-06-13
Publication date: 2009-05-06
Anticipated expiration: 2018-06-13

Abstract

The utility model discloses a boring bar supporting device which comprises a boring bar guide sleeve arranged in a bearing hole of a lathe mould frame base, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are respectively arranged at two side ends of the bearing hole of the lathe mould frame base; the boring bar guide sleeve is provided with a bearing, an inner space ring and an outer space ring, and a pressure bearing inner race end cover, and a sealing ring is arranged between the front end cover and the boring bar guide sleeve; and a sealing ring is arranged between the rear end cover and the pressure bearing inner race end cover. The utility model has the advantages that the boring bar supporting device has good handle of rotating the boring bar guide sleeve when the bearing is adjusted, and can conveniently judge whether the pretightening force of the bearing is enough or not; and the utility model also has the function of preventing splashed cooling fluid, scrap iron or impurity from entering the bearing. The utility model can be suitable to occasions of the boring bar supporting for the lathe combining cylinder block crank holes with horizontal precise grade and large flow cooling, cam shaft holes and positioning ring holes.

Description

A kind of boring bar supporting arrangement

Technical field

The utility model relates to the boring bar supporting arrangement of the building-block machine of a kind of cylinder block processing, a kind of boring bar supporting arrangement that the occasion of the boring bar supporting of the horizontal micron order of especially applicable machined factory, the cylinder block crankshaft hole of big flow cooling, camshaft hole, location annular distance building-block machine is used.

Background technology

The end cap of existing boring bar supporting arrangement and adjacent elements adopt matched in clearance, and end cap is not installed seal member, if its fit clearance is excessive, the iron powder that produces in the processing, foreign material enter in the bearing easily, reduce the service life of bearing widely; If its fit clearance is too small, rotate when bearing pre-tightened is installed the boring bar guide pin bushing to control feel poor, be difficult to confirm whether pretightning force enough, the iron powder foreign material that produce in the processing still can enter in the bearing, also reduce the service life of bearing widely, generally only be 1～3 month the service life of bearing.Particularly owing to crudy and its substantial connection, it generally adopts the import high-precision bearing, working condition requirement height, and present situation very severe.Changing bearing needs the regular hour, can influence production, has improved the product processing cost widely.

The utility model content

In order to overcome the deficiency of existing boring bar supporting arrangement structure, the utility model provides a kind of good hand touch of rotating the boring bar guide pin bushing when adjusting bearing, can judge easily whether bearing pre-fastening is enough, can prevent that the cooling fluid, iron filings or the foreign material that splash from entering in the bearing, prolong the bearing boring bar supporting arrangement in service life.

The utility model provides a kind of boring bar supporting arrangement, comprise the boring bar guide pin bushing, drive end bearing bracket, the rear end cap that are installed in the lathe mould bases seat dead eye, described drive end bearing bracket and rear end cap are located at the two side ends of described lathe mould bases seat dead eye respectively, on described boring bar guide pin bushing, bearing, internal space ring and external space ring and last item are installed and hold the inner ring end cap, between described drive end bearing bracket and described boring bar guide pin bushing, be provided with sealing ring; Hold at described rear end cap and described last item and also to be provided with sealing ring between the inner ring end cap.

Be provided with the O RunddichtringO between described drive end bearing bracket and the described boring bar guide pin bushing.

Hold between the inner ring end cap at described rear end cap and described last item and to be provided with backbone sealing ring.

Described last item holds the inner ring end cap and is provided with endoporus, this inner hole sleeve is contained on the described boring bar guide pin bushing and with described boring bar guide pin bushing and is slidingly connected, described last item holds inner ring end cap and described boring bar guide pin bushing and is connected by the adjustment screw that runs through described last item and hold the inner ring end cap, holds the shift position of inner ring end cap on the boring bar guide pin bushing by the amount of the stretching into control last item of adjusting adjustment screw.

Described forward and backward end cap is connected by the two side ends of screw with described lathe mould bases seat dead eye.

The utility model by between drive end bearing bracket and boring bar guide pin bushing and rear end cap and last item hold between the inner ring end cap sealing ring be set, rotate the good hand touch of boring bar guide pin bushing when adjusting bearing, can judge easily whether bearing pre-fastening is enough, it also has certain dustproof, water-proof function, prevent that the cooling fluid, iron filings or the foreign material that splash from entering in the bearing, can be extended to half a year the service life of bearing more than.The occasion of boring bar supporting that is applicable to cylinder block crankshaft hole, camshaft hole, the location annular distance building-block machine of the horizontal micron order of machined factory, the cooling of big flow is used.

Description of drawings

Fig. 1 is that boring bar supporting arrangement of the present utility model is always schemed.

Fig. 2 A is the side view that the last item of boring bar supporting arrangement of the present utility model holds the inner ring end cap.

Fig. 2 B is the front view that the last item of boring bar supporting arrangement of the present utility model holds the inner ring end cap.

Fig. 3 A is the side view of the drive end bearing bracket of boring bar supporting arrangement of the present utility model.

Fig. 3 B is the front view of the drive end bearing bracket of boring bar supporting arrangement of the present utility model.

Fig. 4 A is the side view of the rear end cap of boring bar supporting arrangement of the present utility model.

Fig. 4 B is the front view of the rear end cap of boring bar supporting arrangement of the present utility model.

Among the figure: 1-lathe mould bases seat; 2-boring bar guide pin bushing; The 3-bearing; The 4-outer ring spacer; The 5-cone spacer; The 6-O RunddichtringO; The 7-drive end bearing bracket; The 8-screw; The 9-rear end cap; The 10-backbone sealing ring; The 11-last item holds the inner ring end cap; The 12-adjustment screw.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is elaborated.

As shown in Figure 1, in the utility model boring bar supporting arrangement, on the boring bar guide pin bushing 2 in being fit into lathe mould bases seat 1 dead eye, bearing and cone spacer 5 thereof and outer ring spacer 4 are installed, last item holds inner ring end cap 11 and adjustment screw 12, last item holds inner ring 11 end caps and is provided with endoporus (as Fig. 2 A, shown in the 2B), this inner hole sleeve is contained on the boring bar guide pin bushing 2 and with boring bar guide pin bushing 2 and is slidingly connected, last item holds inner ring end cap 11 and boring bar guide pin bushing 2 and is connected by the adjustment screw 12 that runs through last item and hold inner ring end cap 11, holds the shift position of inner ring end cap 11 on boring bar guide pin bushing 2 by the amount of the stretching into control last item of adjusting adjustment screw 12.

The forward and

backward end cap

7,9 that sealing

ring

6,10 has been installed is installed at lathe mould bases seat dead eye two ends respectively.Forward and backward

end cap

7,9 is fixed on the two side ends of lathe mould bases seat 1 dead eye by screw 8.The utlity model has certain dustproof, water-proof function, prevent that the cooling fluid, iron filings or the foreign material that splash from entering in the bearing.

During use, bearing 3 and cone spacer 5 thereof at first are installed on boring bar guide pin bushing 2, outer ring spacer 4, last item holds inner ring end cap 11 and adjustment screw 12, last item holds inner ring end cap 11 and can move on boring bar guide pin bushing 2 by adjustment screw 12, then boring bar guide pin bushing 2 is fit in the lathe mould bases seat dead eye, install respectively at lathe mould bases seat dead eye two ends installed O RunddichtringO 6 drive end bearing bracket 7 (as Fig. 3 A, shown in the 3B), the rear end cap 9 that has installed backbone sealing ring 10 is (as Fig. 4 A, shown in the 4B), drive end bearing bracket 7, rear end cap 9 is fixed on the lathe mould bases seat 1 by screw 8.Adjustment screw 12 is given bearing 3 pretightning forces, according to the feel of rotating boring bar guide pin bushing 2, judges whether bearing pre-fastening is enough.Examination processing is carried out next step bearing pre-fastening adjustment according to the crudy situation of product, till the crudy that satisfies product.

During use, carry out according to the following steps:

Bearing 3 is installed on boring bar guide pin bushing 2, is noted: bearing 3 is pressed onto the position;

Cone spacer 5 is installed;

Outer ring spacer 4 is installed;

Bearing 3 is installed, is noted: bearing 3 is pressed onto the position;

Last item is installed is held inner ring end cap 11;

Adjustment screw 12 is installed, simultaneously last item is held inner ring end cap 11 and be fixed on the boring bar guide pin bushing 2;

Boring bar guide pin bushing 2 is fit in the dead eye of lathe mould bases seat 1;

Drive end bearing bracket 7 is installed, the drive end bearing bracket 7 that installs O RunddichtringO 6 is fixed on the lathe mould bases seat 1 by screw 8;

Rear end cap 9 is installed, the rear end cap 9 that installs backbone sealing ring 10 is fixed on the lathe mould bases seat 1 by screw 8;

Adjust bearing 3 gaps, give bearing 3 with pretightning force, Yi Bian adjust adjustment screw 12, Yi Bian rotate boring bar guide pin bushing 2 with hand, whether nimbly and freely to judge it, the feel during by rotation confirms whether pretightning force is enough;

Examination processing is carried out next step bearing 3 pretightning force adjustment according to the crudy situation of product, and it is rapid to repeat previous step, till the crudy that satisfies product.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.

Claims

1, a kind of boring bar supporting arrangement, comprise the boring bar guide pin bushing, drive end bearing bracket, the rear end cap that are installed in the lathe mould bases seat dead eye, described drive end bearing bracket and rear end cap are located at the two side ends of described lathe mould bases seat dead eye respectively, on described boring bar guide pin bushing, bearing, internal space ring and external space ring and last item are installed and hold the inner ring end cap, it is characterized in that: between described drive end bearing bracket and described boring bar guide pin bushing, be provided with sealing ring; Hold at described rear end cap and described last item and also to be provided with sealing ring between the inner ring end cap.

2, boring bar supporting arrangement according to claim 1 is characterized in that: be provided with the O RunddichtringO between described drive end bearing bracket and the described boring bar guide pin bushing.

3, boring bar supporting arrangement according to claim 1 and 2 is characterized in that: hold between the inner ring end cap at described rear end cap and described last item and be provided with backbone sealing ring.

4, boring bar supporting arrangement according to claim 1, it is characterized in that: described last item holds the inner ring end cap and is provided with endoporus, this inner hole sleeve is contained on the described boring bar guide pin bushing and with described boring bar guide pin bushing and is slidingly connected, and described last item holds inner ring end cap and described boring bar guide pin bushing and is connected by the adjustment screw that runs through described last item and hold the inner ring end cap.

5, boring bar supporting arrangement according to claim 1 is characterized in that: described forward and backward end cap is connected by the two side ends of screw with described lathe mould bases seat dead eye.