CN205393196U - Self -lubricating joint bearing extrusion mould - Google Patents
Self -lubricating joint bearing extrusion mould Download PDFInfo
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- CN205393196U CN205393196U CN201620127577.3U CN201620127577U CN205393196U CN 205393196 U CN205393196 U CN 205393196U CN 201620127577 U CN201620127577 U CN 201620127577U CN 205393196 U CN205393196 U CN 205393196U
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- knuckle bearing
- lubricating knuckle
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Abstract
The utility model provides a self -lubricating joint bearing extrusion mould goes up model intracavity wall, drag intracavity wall is the sphere column structure, goes up the mould and towards the supreme mould of lower mould motion during with lower mould looks butt position, goes up model intracavity wall and drag intracavity wall and lie in same sphere. The extrusion in -process, inwards contract at die cavity combined action in the outer lane, and because the die cavity inner wall be spherical surface structure, therefore the outer lane part that takes place to warp is spherical shape all the time, and the spherical outside surface of inner circle is at the participation greatly reduced of extrusion deformation in -process, and the spherical surface contact of sphere and inner circle spherical outside surface is even in the outer lane, has improved 5 homogeneities of self -lubricating joint bearing to self -lubricating joint bearing life -span and reliability have been improved, simultaneously, in the extrusion process, the outer lane is the deformation of sphere form, compares in conical surface extrusion deformation, and the outer lane leans on proximal end portion's partial atress situation of change even more and mild, is difficult for leading to the fact " excessive pressure " phenomenon, is difficult for leading to the fact the damage to the liner.
Description
Technical field
This utility model relates to a kind of self-lubricating knuckle bearing extrusion molding dies.
Background technology
The self-lubricating knuckle bearing of current domestic production there is also no small gap on service life and reliability, except relevant with selflubricating liner material, another major reason is in bearing sagittal plane, and in the radial direction, between outer ring Internal Spherical Surface and inner ring spherical outside surface, distance difference is inconsistent for difference, namely 5 uniformities of bearing are poor, cause that bearing is in rotary course, liner discontinuity, the position abrasion that stress is bigger is very fast, causing bearing life relatively low, reliability is poor.
In domestic existing extrusion die, as shown in Figure 1, upper model cavity and counterdie die cavity are cone structure, in extruded process, the envelope of inner ring is relied on the combined effect of die cavity and inner ring to complete by outer ring, first outer ring starts to contract under the effect of taper die cavity, after treating that outer ring touches inner ring, owing to the intensity of inner ring is higher than outer ring, outer ring deforms according to the spherical outside surface of inner ring and finally wraps on inner ring, sphere-contact between outer ring Internal Spherical Surface and inner ring spherical outside surface relies primarily on inner ring spherical outside surface " passively " and realizes, very easily cause the sphere-contact between outer ring and inner ring uneven, cause that 5 uniformities are bad, thus reducing bearing life and reliability；Furthermore, in extrusion process, the outer ring portion extrusion near end is violent, it is easy to causes " overvoltage " phenomenon and causes that liner damages.
Utility model content
For the problems referred to above, this utility model provides a kind of self-lubricating knuckle bearing extrusion molding dies.
The technical scheme of this self-lubricating knuckle bearing extrusion molding dies is achieved in that
Described self-lubricating knuckle bearing extrusion molding dies, including upper die and lower die, upper mould offers model cavity, counterdie offers the counterdie die cavity matched with upper model cavity, counterdie is also movably set with the plug coaxial with counterdie die cavity, described upper model cavity inwall, drag cavity wall are dome shape structure, upper mould towards counterdie move to upper mould and counterdie abut against position time, upper model cavity inwall and drag cavity wall are positioned on same sphere.
Further, described upper model cavity is perpendicular in the Series of Plane Section circle of mould moving direction, be arranged in the cross section circular diameter of mould end more extruded than self-lubricating knuckle bearing outer ring before the big 0.05-0.1mm of external diameter.
Further, sphere sphere diameter corresponding to described upper model cavity inwall and drag cavity wall more extruded than outer ring in self-lubricating knuckle bearing before the big 0.1-0.3mm of external diameter.
Further, described plug includes the portion that wears and top, and the portion of wearing is positioned at plug upper end, and top is positioned at plug lower end, wears portion's diameter more than top diameter.
Further, described in wear portion and top transition position is provided with the step-like shaft shoulder, the shaft shoulder is recessed near the part wearing portion.
Self-lubricating knuckle bearing extrusion molding dies provided by the utility model is by upper model cavity inwall, drag cavity wall is become spherical structure from cone structure, in extruded process, outer ring starts to contract under die cavity combined effect, owing to die cavity inwall is spherical structure, therefore the part that outer ring deforms is always spherical shape, the spherical outside surface of inner ring participation in extrusion process used for forming is substantially reduced, sphere-contact between outer ring Internal Spherical Surface and inner ring spherical outside surface relies primarily on the self-deformation " actively " of outer ring and realizes, outer ring Internal Spherical Surface is uniform with the sphere-contact of inner ring spherical outside surface, substantially increase 5 uniformities of self-lubricating knuckle bearing, thus improve self-lubricating knuckle bearing life and reliability；Meanwhile, in extrusion process, outer ring spherically shape deforms, and compared to conical surface crimp, the outer ring part stress situation of change near end more uniformly with mild, do not easily cause " overvoltage " phenomenon, not easily liner caused damage.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is existing self-lubricating knuckle bearing squeezing moulded mould structure schematic diagram；
Fig. 2 is self-lubricating knuckle bearing squeezing moulded mould structure schematic diagram described in the utility model；
Fig. 3 adopts the extruded self-lubricating knuckle bearing view of self-lubricating knuckle bearing extrusion molding dies described in the utility model.
Description of reference numerals:
In figure: 1. go up mould, 2. go up model cavity, 3. outer ring, 4. inner ring, 5. counterdie, 6. plug, 7. counterdie die cavity, 61. wear portion, 62. tops, 63. shaft shoulders.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in this utility model and the feature in embodiment can be mutually combined.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " etc. are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can express or implicitly include one or more these features.In description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model by concrete condition.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Self-lubricating knuckle bearing extrusion molding dies described in the utility model, as shown in Figure 2,3, including upper mould 1 and counterdie 5, upper mould 1 offers model cavity 2, counterdie 5 offers the counterdie die cavity 7 matched with upper model cavity 2, counterdie 5 is also movably set with the plug 6 coaxial with counterdie die cavity 7, described upper model cavity 2 inwall, counterdie die cavity 7 inwall are dome shape structure, upper mould 1 towards counterdie 5 move to upper mould 1 abut against position with counterdie 5 time, upper model cavity 2 inwall and counterdie die cavity 7 inwall are positioned on same sphere.
This self-lubricating knuckle bearing extrusion molding dies is by upper model cavity 2 inwall, counterdie die cavity 7 inwall is become spherical structure from cone structure, in extruded process, outer ring 3 starts to contract under die cavity combined effect, owing to die cavity inwall is spherical structure, therefore the part that outer ring 3 deforms is always spherical shape, the spherical outside surface of inner ring 4 participation in extrusion process used for forming is substantially reduced, sphere-contact between outer ring 3 Internal Spherical Surface and inner ring 4 spherical outside surface relies primarily on the self-deformation " actively " of outer ring 3 and realizes, outer ring 3 Internal Spherical Surface is uniform with the sphere-contact of inner ring 4 spherical outside surface, substantially increase 5 uniformities of self-lubricating knuckle bearing, thus improve self-lubricating knuckle bearing life and reliability；Meanwhile, in extrusion process, outer ring 3 spherically shape deforms, and compared to conical surface crimp, the outer ring part stress situation of change near end more uniformly with mild, do not easily cause " overvoltage " phenomenon, not easily liner caused damage.
In this self-lubricating knuckle bearing extrusion molding dies, described upper model cavity 2 is perpendicular in the Series of Plane Section circle of mould 1 moving direction, is arranged in the cross section circular diameter front external diameter big 0.05-0.1mm more extruded than self-lubricating knuckle bearing outer ring 3 of mould 1 end.
The big 0.1-0.3mm of external diameter in this self-lubricating knuckle bearing extrusion molding dies, before sphere sphere diameter corresponding to described upper model cavity 2 inwall and counterdie die cavity 7 inwall is more extruded than outer ring in self-lubricating knuckle bearing 3.
In this self-lubricating knuckle bearing extrusion molding dies, described plug 6 includes the portion that wears 61 and top 62, wears portion 61 and is positioned at plug 6 upper end, and top 62 is positioned at plug 6 lower end, wears portion 61 diameter more than top 62 diameter.
In this self-lubricating knuckle bearing extrusion molding dies, described in wear portion 61 and top 62 transition position is provided with the step-like shaft shoulder 63, the shaft shoulder 63 is recessed near the part wearing portion 61.
Adopt above-mentioned self-lubricating knuckle bearing extrusion molding dies to carry out the process that self-lubricating knuckle bearing is extruded, comprise the following steps:
One, process outer ring 3, inner ring 4 according to designing requirement, and selflubricating liner is pasted on the inwall of outer ring 3；
Two, counterdie 5 is fixed on hydraulic press lower bottom base, and successively inner ring 4, outer ring 3 set is through on plug 6；
Three, upper mould 1 is steadily placed on outer ring 3 and plug 6, controls hydraulic press upper press head and upper mould 1 is applied downward axial force, upper model cavity 2 and counterdie die cavity 7 combined effect, by outer ring 3 crimp envelope on inner ring 4；
Four, extruded self-lubricating knuckle bearing is taken out in counterdie 5.
Further, described self-lubricating knuckle bearing extrusion forming process, further comprising the steps of:
Five, self-lubricating knuckle bearing is overturn, and set is through on plug 6；
Six, upper mould 1 is steadily placed on plug 6, controls hydraulic press upper press head and upper mould 1 is applied downward axial force, upper model cavity 2 and counterdie die cavity 7 combined effect, self-lubricating knuckle bearing is extruded again；
Seven, the self-lubricating knuckle bearing after extruding again is taken out in counterdie 5.
Through twice extruding, it is possible to make further to reach good sphere-contact between outer ring 3 Internal Spherical Surface of self-lubricating knuckle bearing and inner ring 4 spherical outside surface, thus improving 5 uniformities of bearing, improve self-lubricating knuckle bearing life and reliability.
Further, adapt with the step-like shaft shoulder 63 on plug 6, in described self-lubricating knuckle bearing extrusion forming process step 2, first inner ring 4 set is through in the portion of wearing 61, inner ring 4 bottom is resisted against in part recessed in the step-like shaft shoulder 63, being through on inner ring 4 by outer ring 3 set again, bottom, outer ring 3 is resisted against in the step-like shaft shoulder 63 away from the part wearing portion 61.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (5)
1. a self-lubricating knuckle bearing extrusion molding dies, including upper mould (1) and counterdie (5), upper mould (1) offers model cavity (2), counterdie (5) offers the counterdie die cavity (7) matched with upper model cavity (2), counterdie (5) is also movably set with the plug (6) coaxial with counterdie die cavity (7), it is characterized in that: described upper model cavity (2) inwall, counterdie die cavity (7) inwall is dome shape structure, upper mould (1) towards counterdie (5) move to upper mould (1) and counterdie (5) abut against position time, upper model cavity (2) inwall and counterdie die cavity (7) inwall are positioned on same sphere.
2. self-lubricating knuckle bearing extrusion molding dies according to claim 1, it is characterized in that: described upper model cavity (2) is perpendicular in the Series of Plane Section circle of mould (1) moving direction, be arranged in the cross section circular diameter front external diameter big 0.05-0.1mm more extruded than self-lubricating knuckle bearing outer ring (3) of mould (1) end.
3. self-lubricating knuckle bearing extrusion molding dies according to claim 1, it is characterised in that: the big 0.1-0.3mm of external diameter before sphere sphere diameter corresponding to described upper model cavity (2) inwall and counterdie die cavity (7) inwall is more extruded than outer ring in self-lubricating knuckle bearing (3).
4. self-lubricating knuckle bearing extrusion molding dies according to claim 1, it is characterized in that: described plug (6) includes the portion that wears (61) and top (62), wear portion (61) and be positioned at plug (6) upper end, top (62) is positioned at plug (6) lower end, wears portion (61) diameter more than top (62) diameter.
5. self-lubricating knuckle bearing extrusion molding dies according to claim 4, it is characterized in that: described in wear portion (61) and top (62) transition position is provided with the step-like shaft shoulder (63), the shaft shoulder (63) is recessed near the part wearing portion (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127577.3U CN205393196U (en) | 2016-02-18 | 2016-02-18 | Self -lubricating joint bearing extrusion mould |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127577.3U CN205393196U (en) | 2016-02-18 | 2016-02-18 | Self -lubricating joint bearing extrusion mould |
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| CN205393196U true CN205393196U (en) | 2016-07-27 |
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| CN201620127577.3U Active CN205393196U (en) | 2016-02-18 | 2016-02-18 | Self -lubricating joint bearing extrusion mould |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499298A (en) * | 2016-02-18 | 2016-04-20 | 航天精工股份有限公司 | Self-lubricating knuckle bearing extrusion forming mold and technology |
| CN109848359A (en) * | 2019-01-30 | 2019-06-07 | 上海大学 | Monoblock type oscillating bearing bidirectional rotary forges manufacturing process |
-
2016
- 2016-02-18 CN CN201620127577.3U patent/CN205393196U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499298A (en) * | 2016-02-18 | 2016-04-20 | 航天精工股份有限公司 | Self-lubricating knuckle bearing extrusion forming mold and technology |
| CN109848359A (en) * | 2019-01-30 | 2019-06-07 | 上海大学 | Monoblock type oscillating bearing bidirectional rotary forges manufacturing process |
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