CN204913313U - Anchor clamps of 8 word oil grooves on sphere in processing joint bearing - Google Patents

Abstract

The utility model relates to a processing bearing oil groove's anchor clamps especially relate to an anchor clamps of 8 word oil grooves on sphere in processing joint bearing. These anchor clamps comprise mould, clamping hole, screw hole and the fastening screw who has the alpha edged surface, and the screw hole is located the mould surface, the corresponding screw in screw hole of fastening screw, the central line perpendicular to of mould the alpha edged surface of mould, the central line of mould is alpha angle, 0 <with the axis of rotation of lathe spindle, alpha <= 15. Utilizing 8 word oil grooves on the sphere in this anchor clamps processing joint bearing, having realized on center lathe that copperhead fastening screw can effectively protect the bearing to the processing of 8 word oil grooves on the circular arc sphere in the dualthrust joint bearing overcoat, can realize alignment clamping many times during the clamping bearing, application method easy operation, size control are convenient more accurate.

Description

A kind of fixture processing oscillating bearing Internal Spherical Surface 8 word oil groove

Technical field

The utility model relates to a kind of fixture of machining bearing oil groove, particularly relates to a kind of fixture processing oscillating bearing Internal Spherical Surface 8 word oil groove.

Background technology

Oscillating bearing is a kind of sliding bearing, and primarily of an Internal Spherical Surface outer ring and spherical outside surface inner ring composition, the oscillating motion that the speed that is generally used for is lower, banking motion and rotary motion, have larger bearing capacity.Oscillating bearing, according to its different structures and type, can bear radial load, axial load, or radial, axial simultaneous joint load, is thisly called dual thrust oscillating bearing.

Lubrication is on the fatigue life, friction, wearing and tearing, temperature, vibration etc. of bearing having impact, and do not lubricate normally, bearing just cannot work, and therefore, the good lubrication of bearing is the effective measures reducing friction and wear.The lubricating system that sliding bearing is commonly used is the shallow slot processing certain trend at bearing outside inner surface, as 8 word oil grooves, in order to pass through and to retain lubricating oil, reduces the frictional force on bearing enclose surface, plays the effect of lubrication.

The conventional machining mode of oil groove utilizes screw mandrel to drive forming tool turning on the inner surface of bearing outside.Be sphere-contact between inside and outside circle due to oscillating bearing, there is certain radian, therefore on the Inner arc sphere of bearing outside, processing oil groove has sizable difficulty, common lathe and the processing method of routine all cannot complete the processing of this oil groove, and auxiliary clamp must be utilized just to be achieved.

Summary of the invention

The utility model, according to the technological gap in above-mentioned existing lathe process field, provides a kind of fixture processing oscillating bearing Internal Spherical Surface 8 word oil groove, especially processes the fixture of dual thrust oscillating bearing overcoat Inner arc sphere 8 word oil groove.

The technical scheme that the utility model solves this problem is:

A kind of fixture processing oscillating bearing Internal Spherical Surface 8 word oil groove, form by having the mold of α edged surface, clamping hole, screw hole and fastening screw, described screw hole is positioned at described mold surface, described fastening screw correspondence screws in described screw hole, the central axis of described mold is in the α edged surface of described mold, the center line of described mold and the axis of rotation of lathe spindle are α angle, 0 ° of < α≤15 °.

Described α angle is that the angle of 8 word oil grooves needed for bearing outside Inner arc sphere is determined.

The quantity of described screw hole is 2, lays respectively at the both sides of mold upper surface.

The quantity of described fastening screw is 2, is copperhead fastening screw.

This fixture working inner sphere 8 word oil groove is utilized to have following characteristics:

1. achieve the processing to dual thrust oscillating bearing overcoat Inner arc sphere 8 word oil groove on engine lathe;

2. available protecting bearing, crushing bearing outside outer round surface when copperhead fastening screw can avoid clamping;

3. clamping bearing is reliable, with chuck clamping mold and after centering, by the copperhead screw rod clamping on mold and fastening bearing, without the need to centering again in the clamping process of follow-up bearing, achieves a centering multiple clamping;

4. process operation is simple, after completing the processing of two, front and back oil groove in the same way, can process two other oil groove, complete the processing of 8 word oil grooves by swivel bearing 180 °;

5. size Control is convenient, and can control axial dimension by rotating little supporting plate, in rotation, supporting plate can control radial dimension;

6. size Control is accurate, this clamp for machining fixing under, ensure that the radial beat eccentricity of Inner arc sphere is less than 0.1mm.

Accompanying drawing explanation

Fig. 1 is the front view of the utility model fixture.

Fig. 2 is the sectional view along A-A line in Fig. 1.

Sectional structure schematic diagram when Fig. 3 is the utility model fixture clamping bearing outside.

Fig. 4 is the sectional structure schematic diagram of bearing outside Inner arc sphere 8 word oil groove.

Coding in accompanying drawing is respectively: 1 for having the mold of α edged surface, and 2 is clamping hole, and 3 is screw hole, and 4 is fastening screw, line centered by 5, and 6 is α edged surface, and 7 is lathe spindle, and 8 is axis of rotation, and 9 is bearing outside.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is further detailed and description, but structure of the present utility model is not limited only to following examples.

As shown in Figures 1 and 2, a kind of fixture processing oscillating bearing Internal Spherical Surface 8 word oil groove, by the mold 1 with α edged surface, clamping hole 2, screw hole 3 and fastening screw 4 form, the center line 5 of described mold 1 is perpendicular to the α edged surface 6 of mold 1, the center line 5 of described mold 1 and the axis of rotation 8 of lathe spindle 7 are in α angle, α angle is 12 °, described α angle is that the angle of 8 word oil grooves needed for bearing outside 9 Inner arc sphere is determined, the quantity of described screw hole 3 is 2, lay respectively at the both sides of mold 2 upper surface, the quantity of described fastening screw 4 is 2, be copperhead fastening screw.

As shown in Figure 3, the oscillating bearing Internal Spherical Surface 8 word oil groove utilizing the utility model fixture to process as shown in Figure 4 for appearance when utilizing the utility model fixture clamping bearing outside.

Claims (4)

1. process the fixture of oscillating bearing Internal Spherical Surface 8 word oil groove for one kind, it is characterized in that: by the mold (1) with α edged surface, clamping hole (2), screw hole (3) and fastening screw (4) composition, described screw hole (3) is positioned at described mold (1) surface, described fastening screw (4) correspondence screws in described screw hole (3), the center line (5) of described mold (1) is perpendicular to the α edged surface (6) of described mold (1), the center line (5) of described mold (1) and the axis of rotation (8) of lathe spindle (7) are in α angle, 0 ° of < α≤15 °.

2. fixture according to claim 1, is characterized in that: described α angle is that the angle of 8 word oil grooves needed for bearing outside (9) Inner arc sphere is determined.

3. fixture according to claim 1, is characterized in that: the quantity of described screw hole (3) is 2, lays respectively at the both sides of mold (1) upper surface.

4. fixture according to claim 1, is characterized in that: the quantity of described fastening screw (4) is 2, is copperhead fastening screw.