CN201322055Y - Assembly mould for cylindrical roller bearing of outward-bending claw Z-shaped holder - Google Patents

Abstract

The utility model belongs to a bearing assembly frock and proposes an assembly mould for the cylindrical roller bearing of an outward-bending claw Z-shaped holder. The assembly mould comprises an assembly auxiliary means and a main mould, wherein the auxiliary means comprises a supporting seat 19 and a special outer ring 11; the upper end surface of the supporting seat 19 is provided with a counter bore and a ring-shaped groove; the internal diameter of the special outer ring 11 is the same as that of a bearing outer ring, and a locating pin 20 is arranged on the excircle surface of the special outer ring 11; the pore diameter of the upper part of a guide frame 8 is equal to the internal diameter of the assembled bearing outer ring; the pore diameter of the internal hole of a cover plate 12 is equal to the external diameter of the bearing outer ring; and the upper end surface of the cover plate 12 is provide with a locating groove. The assembly mould realizes the accurate location of components before the components in the bearing enter the main mould, the circumferential-direction location when the components enter the main mould, and the radial location of the excircle of a roller when the components enter the main mould and effectively avoids the roller is clamped tightly by the claw of the holder or a plunged tip is damaged by pressing when the claw of the holder is bent in the main mould, thereby ensuring the assembly quality and improving the working efficiency.

Description

The assembling mould of excurvation pawl second shape retainer roller bearing

Technical field

The utility model belongs to the bearing assembly tooling, mainly proposes a kind of assembling mould of excurvation pawl second shape retainer roller bearing.

Background technique

Adopt the single-row centripetal cylindrical roller bearing of excurvation pawl second shape retainer, its retainer is owing to the needs of assembly technology, and when retainer was made, claw had only been done slight bending; During assembling, with roller and inner ring embedded retainer, curved pawl is bent to product requirement on the assembling mould again.Existing technology status is: before inner assemblies such as roller, inner ring and retainer entered the assembling mould, the relative position between each assembly was uncertain; Inner assembly does not have circumferential location with respect to mould when entering the assembling mould; Inner assembly is curved pawl position in the assembling mould, and the outer width of cloth circle of roller does not have the location, and a lot of rollers are not pressed close to interior raceway, and roller is moved to the inner ring raceway direction by the drift effect during curved pawl, and roller is held the dead or drift of frame pawl folder through regular meeting and weighs wounded during curved pawl; Roller is held the dead or drift of frame pawl folder and weighs wounded to have only by manual roller is pushed the position of inner ring when avoiding curved pawl, and this method not only efficient is low, and assembly quality is difficult to guarantee.

Summary of the invention

The purpose of this utility model provides a kind of assembling mould of excurvation pawl second shape retainer roller bearing, to solve the prior art above shortcomings.

The purpose of this utility model can adopt following technological scheme to realize: a kind of assembling mould of excurvation pawl second shape retainer roller bearing, mainly include base, saddle and push-off pin and drift in its main mould, the endoporus ring set of described saddle bottom supports on base and by the step surface of base bottom, the saddle upper-end surface has in order to the short slot of drift to be set along circumference, saddle top has cover plate, oblique die body on saddle top also is provided with in order to the slip of realization drift, base top has to be used so that the ring-shaped step of inner assembly radial location; Described push-off pin is positioned at centre hole of base and can slides up and down, and its top has boss, and boss is corresponding with the short slot that base top is uniformly distributed along the circumference; On the mould seat, have the slide plate guide groove mechanism that is slided in the shaped portion front and back, make the trapezoid block of push-off pin knee-action when before and after the mould seat also is provided with shaped portion, sliding; It is characterized in that: be provided with the assembling assistant tool, it comprises bearing and special outer ring, the bearing upper-end surface has in order to place the counterbore of bearing inner race, its aperture and the degree of depth are joined with highly kissing with the external diameter of the upper and lower end face flange of inner ring respectively, and the bearing upper-end surface also has in order to hold the circular groove of second shape retainer lower edge; The special outer ring of tubular structure is enclosed within the roller periphery, relative position is stable before making inner assembly enter the assembling mould, the inwall of special outer ring have be uniformly distributed along the circumference, in order to hold crooked before the axial groove of retainer pawl, on the periphery of special outer ring, locating stud is set, the circumferential location when putting into main mould in order to inner assembly; The aperture of described main mould saddle top endoporus is identical with the internal diameter of bearing outer ring, and the endoporus aperture of described cover plate is identical with the external diameter of bearing outer ring; The cover plate upper-end surface is provided with the locating slot that matches with locating stud on the periphery of special outer ring.

The upper and lower end of described special outer ring inwall has the guiding oblique angle, and endoporus upper end in described main mould saddle top has the guiding oblique angle.

The utility model modern design, simple in structure, realized that bearing inner assembly enters the correct location of each assembly before the main mould, the circumferential location when entering main mould and the outer width of cloth of roller is justified in main mould time the radial location, roller is held the phenomenon that frame pawl folder is dead or drift weighs wounded when effectively having avoided retainer to bend pawl in main mould, guarantee assembly quality, improved working efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model master mould.

Fig. 2 is the plan view of Fig. 1.

Structural representation when Fig. 3 works for the assembling assistant tool.

Fig. 4 is the A-A revolved sectional view of Fig. 3.

Fig. 5 is the curved pawl working state structure schematic representation of the utility model master mould.

Among the figure: 1, guide plate, 2, handle, 3, trapezoid block, 4, lower bottom base, 5,6,10,15, screw, 7, base, 8, saddle, 9, go up oblique die body, 11, special outer ring, 12, cover plate, 13, pin, 14, Returnning spring, 16, push-off pin, 17, straight pin, 18, slide plate, 19, bearing, 20, locating stud, 21, drift.

Embodiment

The embodiment who provides in conjunction with the accompanying drawings is illustrated structure of the present utility model:

Shown in Fig. 1,2,3,4, the utility model is by with so that the assembling assistant tool that bearing inner race, roller, retainer assembled in advance put in place and retainer pawl bending deflection to the main mould of product requirement is constituted.

Shown in Fig. 3,4, the assembling assistant tool is that the bearing 19 and the special outer ring 11 of inner assembly formed jointly by placing bearing inner race, roller, retainer in advance; Bearing 19 is the round vase lid shape of hollow, its upper-end surface has counterbore, in order to place bearing inner race, the aperture of bearing 19 upper-end surface counterbores and the degree of depth are joined with highly kissing with the external diameter of the upper and lower end face flange of inner ring respectively, bearing 19 upper-end surfaces also have circular groove, hold the lower edge of second shape retainer when pre-installing on bearing in order to second shape retainer and roller; Special outer ring 11 is for tubular structure and be enclosed within the roller periphery, its internal diameter is identical with the internal diameter size of bearing outer ring, before making that inner assemblies such as roller, inner ring and retainer enter the assembling mould, relative position between roller, inner ring and the retainer is stable, its inwall has the axial groove that is uniformly distributed along the circumference to hold the retainer pawl before crooked, the upper and lower end of special outer ring 11 also has the guiding oblique angle, the circumferential location the when locating stud 20 that setting matches with main die cover plate 12 upper-end surface locating slots on the periphery of special outer ring 11 is put into main mould in order to the realization inner assembly.

As shown in Figure 1, 2, main mould mainly comprises base 7, saddle 8, push-off pin 16 and drift 21, base 7 is for having the hollow ladder oblique crank Z of four sections various outer diameters, the upper-end surface of the periphery of its first cylinder of top and second cylinder cooperates with the inner headed face and the lower end surface of institute's running in bearings inner ring, the axially locating and the radial location of bearing inner race when realizing bending pawl; The endoporus ring set of described saddle 8 bottoms supports on the disc of base 7 bottoms and by step surface, the aperture of saddle 8 top endoporus is identical with the internal diameter of bearing outer ring, saddle 8 upper-end surfaces have in order to the short slot of drift 21 to be set along circumference, drift 21 is joined with described short slot kiss and can be radially slided along short slot, drift 21 bottoms are provided with pin 13, pin 13 connects with the Returnning springs 14 that are placed in the short slot bottom groove, sells 13 and realizes automatically reseting of drift 21 with its Returnning spring that links 14; Saddle 8 tops have cover plate 12, and its upper-end surface is provided with the locating slot that matches with locating stud 20 on the periphery of special outer ring; The endoporus aperture of described cover plate 12 is identical with the external diameter of bearing outer ring.Oblique die body 9 on saddle top also is provided with in order to the slip of realization drift; The top of first cylinder of base 7 tops and second cylinder has three short slots that are uniformly distributed along the circumference, and described push-off pin 16 is positioned at centre hole of base and can slides up and down, and its top has boss, and boss is corresponding with the short slot of base top circumference uniform distribution; On the mould seat, have and make the slide plate guide groove mechanism of sliding before and after the shaped portion, two guide plates 1 connect firmly with lower bottom base 4 by screw 6 and straight pin 17 about described slide plate guide groove mechanism, slide plate 18 is set in the chute of guide plate 1, slide in slide plate front and back under handle 2 pulling functions, described base 7 is positioned at above the slide plate 18 and by screw 5 and slide plate 18 and connects firmly, base 7 slides with slide plate 18 front and back together with main bearing of die, also is provided with the trapezoid block 3 that makes the push-off pin knee-action when slide in the shaped portion front and back on the lower bottom base 4 of mould seat.

Working procedure of the present utility model is: as Fig. 1, earlier roller is put into the pocket hole of second shape retainer and the bearing inner race that closes, bearing inner assembly is placed on the bearing 19, more special outer ring 11 is enclosed within the bearing inner assembly periphery; Pulling handle 2 makes main bearing of die slide along guide plate 1 with slide plate 18, and makes push-off pin 16 lower end sphericals move to the last end face of trapezoid block 3; Special outer ring 11 is placed on saddle top, and makes locating stud 20 be positioned at the locating slot of cover plate 12 upper-end surfaces, inner assembly is placed on the boss on push-off pin 16 tops, and bearing inner race is enclosed within on first periphery of base 7 tops simultaneously; As Fig. 3, pulling handle 2 makes main bearing of die slide and make push-off pin 16 lower end sphericals be in the inclined-plane lowest part of trapezoid block 3 along guide plate 1 with slide plate 18, thereby oblique die body 9 being pressed down the drift 21 that is distributed in saddle top circumference is slided to mold center by press machine realizes the curved pawl shaping of retainer.

Claims (2)

1, a kind of assembling mould of excurvation pawl second shape retainer roller bearing, mainly include base (7), saddle (8) and push-off pin and drift (21) in its main mould, the endoporus ring set of described saddle bottom is gone up and is supported by the step surface of base bottom at base (7), saddle (8) upper-end surface has in order to the short slot of drift (21) to be set along circumference, saddle (8) top has cover plate (12), oblique die body (9) on saddle top also is provided with in order to the slip of realization drift, base (7) top has to be used so that the ring-shaped step of inner assembly radial location; Described push-off pin (16) is positioned at centre hole of base and can slides up and down, and its top has boss, and boss is corresponding with the short slot of base top circumference uniform distribution; On the mould seat, have the slide plate guide groove mechanism that is slided in the shaped portion front and back, make the trapezoid block (3) of push-off pin knee-action when before and after the mould seat also is provided with shaped portion, sliding; It is characterized in that: be provided with the assembling assistant tool, it comprises bearing (19) and special outer ring (11), bearing (19) upper-end surface has in order to place the counterbore of bearing inner race, its aperture and the degree of depth are joined with highly kissing with the external diameter of the upper and lower end face flange of inner ring respectively, and bearing (19) upper-end surface also has in order to hold the circular groove of second shape retainer lower edge; The special outer ring (11) of tubular structure is enclosed within the roller periphery, the inwall of special outer ring (11) have be uniformly distributed along the circumference, in order to hold crooked before the axial groove of retainer pawl, the periphery of special outer ring (11) is provided with locating stud (20); The aperture of described main mould saddle (7) top endoporus is identical with the internal diameter of bearing outer ring; The aperture of described cover plate (12) endoporus is identical with the external diameter of bearing outer ring; Cover plate (12) upper-end surface is provided with the locating slot that matches with locating stud (20) on the periphery of special outer ring.

2, excurvation pawl second shape retainer roller bearing assembling mould according to claim 1, it is characterized in that: the upper and lower end of described special outer ring (11) inwall has the guiding oblique angle.

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