CN203509658U - Bearing bush inner side face machining positioning mechanism and bearing bush inner side face machining device - Google Patents

Abstract

The utility model discloses a bearing bush inner side face machining positioning mechanism and a bearing bush inner side face machining device. The two ends of the cambered surface of a limiting block are provided with two limiting clamping pieces respectively, and the limiting clamping pieces can rotate around a fixing shaft. Before a bearing bush is placed, the limiting clamping pieces are rotated out of the cambered surface, and after the bearing bush is placed, the limiting clamping pieces are rotated back to the cambered surface and make contact with the two end faces of the bearing bush, and the limiting clamping pieces are fixed through limiting locks. Due to the fact that the length of the limiting clamping pieces is smaller than the thickness of the bearing bush, the limiting clamping pieces can fix the bearing bush and cannot extend into the inner side face of the bearing bush either, and the machining of a cutter is not affected.

Description

A kind of bearing shell medial surface processing detent mechanism and bearing shell medial surface processing unit (plant)

Technical field

The utility model relates to bearing shell processing technique field, relates in particular to a kind of bearing shell medial surface processing detent mechanism and bearing shell medial surface processing unit (plant).

Background technology

Bearing is in mechanical transmission course, to work the parts of fixing and reducing load coefficient of friction.Also can say, be other parts while producing relative motion each other on axle, is used for reducing the fixing parts of coefficient of friction and retainer shaft center in power transmission process.Press the difference of motor element frictional property, bearing can be divided into rolling bearing and sliding bearing two classes.Bearing shell be sliding bearing directly be coupling tactile part, very smooth, generally with high-abrasive materials such as bronze, antifriction alloys, make, be shaped as the semi-cylindrical of watt shape.The effect of bearing shell is the active force that applies of carrying axle journal, keeps oil film stable, makes bearing smooth working and reduces the friction loss of bearing.Bearing shell generally comprises: main bearing shell, be arranged on the main bearing seat of body, and its effect is the wearing and tearing that reduce the frictional resistance of axle journal and reduce axle journal; Thrust bearing shell, is arranged on the inner side of main bearing seat, the thrust of axial float during the rotation of bearing bent axle, and there is anti-attrition effect; Crankshaft bearing liner, is arranged on the analog bracket of bent axle and cylinder body.

During sliding bearing work, between bearing shell and rotating shaft, require to have the oil film lubricate that one deck is very thin.If insufficient lubrication, just exists directly and rub between bearing shell and rotating shaft, friction can produce very high temperature, although bearing shell is because special high-temperature alloy material is made, the high temperature that direct friction generation occurs is still enough to be burnt out.In addition, in order to reduce frictional force, need to guarantee the radian of bearing shell medial surface, and bearing shell medial surface is polished to smooth enough, to reduce the frictional force between bearing shell and axle as far as possible.

In prior art, bearing shell is processed, after need to being fixed bearing shell, used cutter to process bearing shell medial surface.To the fixed form of bearing shell, be to arrange and there is the spatial accommodation coordinating with bearing shell lateral surface on lathe base at present, add man-hour, bearing shell is placed in spatial accommodation, edge is used the instruments such as position limiting clamp to be fixed, guarantee that bearing shell can not move, re-use the rotation of driven by motor cutter bearing shell medial surface is processed.Yet, in prior art, position limiting clamp, by bearing shell edge is added and fastened, causes cutter to process bearing shell marginal portion, can only after using tool sharpening, take off bearing shell, two undressed parts of manual edge processing of polishing again, wastes time and energy.

Utility model content

In order to solve the technical problem existing in background technology, the utility model proposes a kind of bearing shell medial surface processing detent mechanism and bearing shell medial surface processing unit (plant), bearing shell is not blocked to bearing shell medial surface edge fixedly time, can process at one time bearing shell medial surface.

A kind of bearing shell medial surface processing detent mechanism the utility model proposes, comprising:

Base;

Limited block, is arranged on described base, and described limited block has the spatial accommodation coordinating with bearing shell lateral surface, for fixed placement bearing shell to be processed;

Two limited blocks, be separately positioned on the two ends of limited block cambered surface, respectively can be around two fixed axis rotations, before placing bearing shell, limited block is produced to cambered surface, after placing bearing shell, limited block is gone back to cambered surface, and conflict with described bearing shell both ends of the surface, and use limiting lock that limited block is fixed.

Preferably, described limited block is two long slabs, and length direction is identical with bearing shell axis direction; Or be a plurality of rectangular blocks.

Preferably, described limiting lock is buckle or set bolt.

A bearing shell medial surface processing unit (plant), comprises described bearing shell medial surface processing detent mechanism; Also comprise:

Support, is arranged on base;

The first guide rail, one end is arranged on the top of support, and the other end suspends downwards, can be along the second guide rail arranging on support along sliding with axle bearing shell line parallel direction;

Rotating shaft, is arranged on described the first guide rail, can slide up and down along described the first guide rail;

Cutter, is arranged in rotating shaft, along with the rotation of rotating shaft is processed bearing shell medial surface.

In the utility model, at the two ends of limited block cambered surface, two limited blocks are set respectively, can rotate around fixed axis, before placing bearing shell, limited block is produced to cambered surface, after placing bearing shell, limited block is gone back to cambered surface, and conflict with described bearing shell both ends of the surface, and use limiting lock that limited block is fixed.Because the length of limited block is less than half bearing thickness, therefore, both fixing bearing shell, can not be projected into bearing shell medial surface again, affected the processing of cutter.

Accompanying drawing explanation

Fig. 1 is that a kind of bearing shell medial surface the utility model proposes is processed fixedly pre-structure figure of detent mechanism;

Fig. 2 is the fixing rear structure chart of a kind of bearing shell medial surface processing detent mechanism the utility model proposes.

Reference numeral:

1, base; 2, limited block; 3, bearing shell medial surface; 4, bearing shell lateral surface; 51,52, limited block; 61,62, axis.

The specific embodiment

Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate the technical solution of the utility model:

The utility model embodiment provides a kind of bearing shell medial surface processing detent mechanism, as depicted in figs. 1 and 2, comprising: base 1; Limited block 2, is arranged on described base 1, and described limited block 2 has the spatial accommodation coordinating with bearing shell lateral surface 4, for fixed placement bearing shell to be processed; Two limited blocks 51,52, be separately positioned on the two ends of limited block cambered surface, respectively can be around fixed axis 61,62 rotations (axis is consistent with bearing shell axis direction), before placing bearing shell, limited block 51,52 is produced to cambered surface, after placing bearing shell, limited block 51,52 is gone back to cambered surface, and conflict with described bearing shell both ends of the surface, and use limiting lock that limited block is fixed.Wherein, limited block 51,52 can be two long slabs, and length direction is identical with bearing shell axis direction; Also can be a plurality of rectangular blocks.Limiting lock can be buckle or set bolt etc.

The utility model embodiment provides a kind of bearing shell medial surface processing unit (plant), has increased with lower member on the basis of Fig. 1 and Fig. 2: support, is arranged on base 1; The first guide rail, one end is arranged on the top of support, and the other end suspends downwards, can be along the second guide rail arranging on support along sliding with axle bearing shell line parallel direction; Rotating shaft, is arranged on described the first guide rail, can slide up and down along described the first guide rail; Cutter, is arranged in rotating shaft, along with the rotation of rotating shaft is processed bearing shell medial surface.

In the utility model, at the two ends of limited block cambered surface, two limited blocks are set respectively, can rotate around fixed axis, before placing bearing shell, limited block is produced to cambered surface, after placing bearing shell, limited block is gone back to cambered surface, and conflict with described bearing shell both ends of the surface, and use limiting lock that limited block is fixed.Because the length of limited block is less than half bearing thickness, therefore, both fixing bearing shell, can not be projected into bearing shell medial surface again, affected the processing of cutter.

The utility model embodiment provide the above; it is only the preferably specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection domain of the present utility model.

Claims (4)

1. a bearing shell medial surface processing detent mechanism, is characterized in that, comprising:

Base;

Limited block, is arranged on described base, and described limited block has the spatial accommodation coordinating with bearing shell lateral surface, for fixed placement bearing shell to be processed;

Two limited blocks, be separately positioned on the two ends of limited block cambered surface, respectively can be around two fixed axis rotations, before placing bearing shell, limited block is produced to cambered surface, after placing bearing shell, limited block is gone back to cambered surface, and conflict with described bearing shell both ends of the surface, and use limiting lock that limited block is fixed.

2. bearing shell medial surface processing detent mechanism according to claim 1, is characterized in that, described limited block is two long slabs, and length direction is identical with bearing shell axis direction; Or be a plurality of rectangular blocks.

3. bearing shell medial surface processing detent mechanism according to claim 1, is characterized in that, described limiting lock is buckle or set bolt.

4. a bearing shell medial surface processing unit (plant), is characterized in that, comprises the processing of the bearing shell medial surface described in any one detent mechanism in claims 1 to 3; Also comprise:

Support, is arranged on base;

The first guide rail, one end is arranged on the top of support, and the other end suspends downwards, can be along the second guide rail arranging on support along sliding with axle bearing shell line parallel direction;

Rotating shaft, is arranged on described the first guide rail, can slide up and down along described the first guide rail;

Cutter, is arranged in rotating shaft, along with the rotation of rotating shaft is processed bearing shell medial surface.

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