CN207448192U - A kind of eccentric shaft universal connector - Google Patents
A kind of eccentric shaft universal connector Download PDFInfo
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- CN207448192U CN207448192U CN201721158689.6U CN201721158689U CN207448192U CN 207448192 U CN207448192 U CN 207448192U CN 201721158689 U CN201721158689 U CN 201721158689U CN 207448192 U CN207448192 U CN 207448192U
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- shaft part
- universal joint
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- shaft
- eccentric shaft
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Abstract
The utility model discloses a kind of eccentric shaft universal connector, including universal joint and eccentric shaft, one end connecting power device of universal joint；Eccentric shaft includes the first shaft part, second shaft part and threeth shaft part coaxial with the universal joint other end, first shaft part, the axis of the 3rd shaft part form angle between the axis of the second shaft part, and second shaft part affixed first shaft part in one end, affixed 3rd shaft part of the other end；The other end of universal joint is connected with the first shaft part, and universal joint is located at the top of the first shaft part.The utility model drives universal joint forward or reverse by the way that universal joint is fixedly connected with eccentric shaft, using power lathe, and the wobbler action of eccentric shaft can realize swing again, so that eccentric shaft movement locus is cambered surface.Therefore, the utility model is simple in structure, rotation is flexible, easy to use.
Description
Technical field
The utility model belongs to grinding operation field, and in particular to a kind of eccentric shaft universal connector.
Background technology
Parts with spheroid character often have spherical surface in all trades and professions are using very extensive steel industries rolling equipment
The sphericals parts such as pad, existing single-piece, small lot processing method are with reference to grinding, polishing, are scraped by underhand polish, pincers worker
Grind, grinder reconditioning the methods of obtain higher machining accuracy.But these method efficiency are low, of high cost, some processing sides
Method dimensional accuracy is difficult to ensure that.
In general, the method for fine finishing of the spherical parts such as milling train spherical surface copper sheathing has, pincers worker triangular scraper reconditioning, angle grinder is repaiied
Mill, uses grinder etc..
Manual scraping is to utilize scraper, reference surface, survey tool and developer, in a manner of handwork, Bian Yanbian
Measurement, side scraping processing smear red lead powder in mating spherical surfaces face（Developer）It carries out to grinding, then checks respectively for colored spots, it is right
Undeliverable color dot, that is, high point carries out scraping, and Xun Huan carries out, until mating surface contact (area) pattern meets the requirements.Workpiece reaches defined ruler
One finishing step of the requirements such as very little, geometry, surface roughness and adaptation.
The advantages of hand lapping is：Simple using instrument, versatility is stronger, and allowance is few, and precision is high, widely applies
In the manufacture of machine and instrument and the repair work of mechanical equipment, generally, milling area can be stepped up to more than 75%.
But hand lapping is there are operating personnel's great work intensity, work efficiency extremely low the defects of more demanding to bench skill, by hand
Grinding is only applicable to single-piece, small lot production.
Angle grinder reconditioning is on the basis of hand lapping, and to improve operating efficiency, reconditioning is carried out using electric angle grinder.
But since angle grinder rotating speed is high, has vibrations, operation difficulty increases, and easily injures other portions of spherical surface when polishing high point in reconditioning
Position, so as to which high point is polished into low spot so that mating surface Percentage bound is not high.
Line contact-type grinder forms circumferential line contact when grinding spherical surface.The equipment knot of spherical surface line grinder grinding
Structure is complicated, there are cost of equipment it is high, not easy to repair the defects of.
The content of the invention
The purpose of this utility model is to provide a kind of eccentric shaft universal connector, the device using power lathe as power,
It is connected by power connector body with universal joint, and in the fixed eccentric shaft in the lower section of universal joint so that the universal connection dress of eccentric shaft
Swing can be realized again while circular-rotation is realized by putting.
The technical solution of the utility model is as follows：
A kind of eccentric shaft universal connector, including universal joint and eccentric shaft, one end connection power dress of the universal joint
It puts；
The eccentric shaft includes the first shaft part, second shaft part and threeth shaft part coaxial with the universal joint other end, and described the
One shaft part, the axis of the 3rd shaft part form angle, and one end affixed first of the second shaft part between the axis of the second shaft part
Shaft part, affixed 3rd shaft part of the other end；
The other end of the universal joint is connected with the first shaft part, and universal joint is located at the top of the first shaft part.
A kind of above-mentioned eccentric shaft universal connector, the axis of first shaft part is parallel with the axis of the 3rd shaft part,
And the 3rd the axis of shaft part be located on the right side of the axis of the first shaft part.
A kind of above-mentioned eccentric shaft universal connector, the lower end of the 3rd shaft part are provided with convex spherical abrasive body, should
Convex spherical abrasive body is contacted with workpiece, and spherical surface body workpiece is ground under the drive of power set.
A kind of above-mentioned eccentric shaft universal connector is additionally provided with compacting machine on the universal joint with power set junction
Structure, the hold-down mechanism include taper shank spindle, slide-bar, and one end of the slide-bar is fixed with compression spring, and the other end is fixed with universal joint to be connected
It connects；
The taper shank spindle is formed by taper shank portion and with the cylindrical portion that taper shank portion big end is fixedly connected, and the taper shank portion is with moving
The inner cavity cooperation of power connector, to realize being fixedly connected for taper shank spindle and power connector body；The cylindrical portion is equipped with pressure supply
The cavity that spring and slide-bar stretch into, the power connector body apply uniform active force by compression spring, slide-bar to universal joint；
The bar hole for connecting with cavity and extending along axis is additionally provided on the outer wall of the cylindrical portion；The slide-bar is equipped with
With the anti-falling piece of bar hole cooperation, which can prevent slide-bar from departing from cavity during exercise.
The beneficial effects of the utility model：
The utility model drives universal joint rotating forward or anti-by the way that universal joint is fixedly connected with eccentric shaft, using power lathe
Turn, the wobbler action of eccentric shaft can realize swing again, so that eccentric shaft movement locus is cambered surface.Therefore, the utility model
It is simple in structure, rotate it is flexible, easy to use.
The utility model is described in further details below with reference to accompanying drawings and embodiments.
Description of the drawings
Fig. 1 is the structure diagram of the present apparatus；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the partial enlarged view of scraping slot；
Fig. 4 is the structure diagram of hold-down mechanism；
Fig. 5 is the structure diagram of scraping slot；
Fig. 6 is eccentric shaft schematic diagram；
Fig. 7 is by honing copper sheathing（Workpiece）Schematic diagram；
Fig. 8 is to rotate in the forward direction with reversely rotating grinding device schematic diagram；
Fig. 9 is when not having universal joint, and eccentric shaft plays the role of swing schematic diagram；
Figure 10 is that angular misalignment differential when universal joint works with eccentric shaft is intended to.
In figure：1. couple taper shank；2. anti-falling piece；3. sliding axle；4. universal joint；5. eccentric shaft；51. the first shaft part；52.
Second shaft part；53. the 3rd shaft part；6. connector；7. clamp；8. conjunction piece；9. convex spherical body；10. workpiece；11. compression spring；
12. scraping slot.
Specific embodiment
For the technological means and effect that the utility model is reached predetermined purpose and taken is expanded on further, below in conjunction with attached drawing
And embodiment, to specific embodiment of the present utility model, structure feature and its effect, detailed description are as follows.
Embodiment 1：
In order to make the spherical surface grinder mentioned in background technology simple in structure, easy to use, one is present embodiments provided
Kind eccentric shaft universal connector, including universal joint 4 and eccentric shaft 5, one end connecting power device of universal joint 4；
Eccentric shaft 5 includes the first shaft part 51, second shaft part 52 and threeth shaft part 53 coaxial with 4 other end of universal joint, the
One shaft part 51, the axis of the 3rd shaft part 53 form angle, and one end of the second shaft part 52 between the axis of the second shaft part 52
Affixed first shaft part 51, affixed 3rd shaft part 53 of the other end；
The other end of universal joint 4 is connected with the first shaft part 51, and universal joint 4 is located at the top of the first shaft part 51.
Wherein, the axis of the first shaft part 51 is parallel with the axis of the 3rd shaft part 53, and the axis of the 3rd shaft part 53 is located at the
On the right side of the axis of one shaft part 51.The lower end of 3rd shaft part 53 is provided with convex spherical body 9, the convex spherical body 9 and spherical surface body workpiece
Convex spherical contacts, and spherical surface body workpiece is ground under the drive of power set.
The device is connected using power lathe as power, by power connector body with universal joint 4, and under universal joint 4
The fixed eccentric shaft 5 in side so that eccentric shaft universal connector can realize swing again while circular-rotation is realized；
The present embodiment by the way that universal joint 4 is fixedly connected with eccentric shaft 5, using power lathe drive universal joint 4 rotate forward or
Reversion, the wobbler action of eccentric shaft 5 can realize swing again, so that 5 movement locus of eccentric shaft is cambered surface.Therefore, this implementation
Example is simple in structure, it is flexible, easy to use to rotate.
Embodiment 2：
It is specific as follows this gives a kind of application of eccentric shaft universal connector with reference to embodiment 1：
It is high, not easy to repair there are cost of equipment in order to overcome the device structure of existing spherical surface line grinder grinding complicated
The defects of, present embodiments provide a kind of device for being used to grind spherical parts.
As shown in Fig. 1-Fig. 7, the device of the present embodiment includes power connector body, eccentric shaft universal connector, convex spherical
Body 9, wherein：
The rigid connecting rod of power connector body, similar boring and milling machine knife bar or drilling machine drilling rod, afterbody is according to using difference
Equipment and be designed to Morse's taper or 7:24 tapers, wherein, the connection of Mohs centrum is to act on locking by pin.7:24 vertebras
Body is by tailing screw flight hole draw lever locking.
Eccentric shaft universal connector, the eccentric shaft 5 in the device play convex spherical body 9 and are realizing the same of circular-rotation
When can swing again, form spherical surface track, achieve the purpose that spherical surface is ground.Universal joint 4 is Cardon universal joint rigidity nonconstant velocity universal joint,
For compensating because of the position deviation of axis direction caused by eccentric shaft 5, and ensure that abrasive body each rotation has certain dislocation
Difference, to realize smooth motion, solve because axis direction it is misaligned caused by card resistance phenomenon.
Convex spherical body 9 is the convex spherical body portion of milling tool body or spherical surface body workpiece according to workpiece situation.
If workpiece, periphery sets clip 7, ensures that spherical surface body is mutually opposite and grinds.
The present embodiment is that the power of power lathe is transferred to convex spherical body 9 by eccentric shaft universal connector so that
Convex spherical body 9 is ground.Preferably, the upper surface of the convex spherical body 9 of the present embodiment is additionally provided with convex spherical body connector, convex spherical
Body connector is with convex spherical body 9 by the way that conjunction piece is fixedly connected.
It may be noted that the slot scraping of the present embodiment, is concave surface circular groove and cross recess, cross-section structure is semi arch, plays scraping
Effect improves grinding efficiency.The taper-shank arbor of the present embodiment uses Ying Shi 7:24 cones；The straight section of taper-shank arbor processes endoporus and outside
A logical long slot bore, slide-bar and taper-shank arbor inner hole are processed on circle, the pin hole with long slot bore cooperation is drilled out on slide-bar, it will
Compression spring is packed into, and prevents the two from coming off with axis pin.
As shown in Figure 1, the device of the present embodiment further includes hold-down mechanism, power connector body and eccentric shaft universal connector
Between be additionally provided with hold-down mechanism, which applies uniform pressure to convex spherical body 9, to realize the uniform of spherical surface body workpiece
Grinding.
It may be noted that the hold-down mechanism of the present embodiment can be any form, as long as can meet the needs of uniformly exerting a force.
Preferably, the hold-down mechanism of the present embodiment includes connection taper shank 1, sliding axle 3, one end of sliding axle 3 is fixed with compression spring 11, separately
One end is fixedly connected with universal joint 4；
Connection taper shank 1 is formed by taper shank portion and with the cylindrical portion that taper shank portion big end is fixedly connected, taper shank portion and power connector
The inner cavity interference fit of body, to realize being fixedly connected for connection taper shank 1 and power connector body；Cylindrical portion is equipped with for 11 He of compression spring
The cavity that sliding axle 3 stretches into, power connector body apply uniform active force by compression spring 11, sliding axle 3 to universal joint 4；
The bar hole for connecting with cavity and extending along axis is additionally provided on the outer wall of cylindrical portion；Sliding axle 3 is equipped with and item
The anti-falling piece 2 of shape hole cooperation, the anti-falling piece 2 can prevent sliding axle 3 from departing from cavity during exercise.
The course of work of the present embodiment is such：First by equal power spring pocket on universal joint 4, on universal joint 4 and partially
Mandrel 5 is welded, and eccentric shaft 5 with grinding spherical workpiece welding, allows workpiece 10 to be ground spherical surface and come into contact with grinding contact surface again,
Equal power spring top provides rotary power by transmission device, and workpiece 10 contacts with each other with donut cross scraping slot 12 and ground
Mill, transmission device eccentric rotation axis 5 drive grinding contact surface eccentric rotary, while universal joint 4 can adjust angle at any time, transmission
Device is by rotating forward and rotating backward so that lapped face forms network texture, can increase 10 ball-type surface of milling train workpiece
Big contact (area) pattern.
It may be noted that the 10 preferred milling train copper sheathing of workpiece of the present embodiment, specifically：
Universal joint axostylus axostyle is driven to rotate in the forward direction, power spindle declines, and honing spherical workpiece in lower end is ground spherical surface with copper sheathing
It comes into contact with and increases with reference to power, start to grind spherical surface.It smears red lead powder and is combined face inspection.Rotate in the forward direction the spherical surface of grinding
Surface texture is one-way spiral line.Machine tool chief axis inverts, and machine tool chief axis declines, repetitive process, reversely rotates the spherical surface table of grinding
Face texture is bidirectional screw line so that copper sheathing ball-type surface Percentage bound improves.The universal grinding of milling train copper sheathing is filled after workpiece qualification
It puts and removes.
To sum up, compared with prior art, the present embodiment has the advantages that the present embodiment：Equal power spring is added,
So that abrasive power is uniform between abradant surface, cardan axis makes the abrasive wire of abradant surface be cambered surface with eccentric shaft 5, and transmission device passes through
Rotate forward and rotate backward mode so that lapped face forms network texture, can make 10 ball-type surface of milling train workpiece increase knot
Between conjunction rate reaches 75% ~ 90%, 4 times of work efficiency or more is improved compared with underhand polish.
In order to make the grinding of the present embodiment more flexible, in the present embodiment, eccentric shaft universal connector includes universal
Section 4 and eccentric shaft 5, one end connecting power device of universal joint 4；Eccentric shaft 5 includes the first shaft part 51 and 4 other end of universal joint
Coaxial the second shaft part 52 and the 3rd shaft part 53, the axis of the first shaft part 51, the axis of the 3rd shaft part 53 with the second shaft part 52
Between form angle, and affixed first shaft part 51 in one end of the second shaft part 52, affixed 3rd shaft part 53 of the other end；Universal joint 4
The other end is connected with the first shaft part 51, and universal joint 4 is located at the top of the first shaft part 51.The axis and the 3rd axis of first shaft part 51
The axis of section 53 is parallel, and the axis of the 3rd shaft part 53 is located on the right side of the axis of the first shaft part 51.
With reference to Fig. 3-Fig. 5, the spherical surface of the convex spherical body 9 of the present embodiment is equipped with to improve the scraping slot of grinding efficiency
12, the scraping slot 12 of the present embodiment can be any form, as long as can be beneficial to grinding spherical surface, preferably, this implementation
The scraping slot 12 of example includes annular slot scraping and the cross slot scraping through annular slot scraping diameter.It may be noted that the slot scraping of the present embodiment was both
Grinding efficiency can be improved, can also be used as channel of chip removal.
The above content is combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, several simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (4)
1. a kind of eccentric shaft universal connector, which is characterized in that including universal joint (4) and eccentric shaft (5), the universal joint
(4) one end connecting power device；
The eccentric shaft (5) includes the first shaft part (51), second shaft part (52) and threeth axis coaxial with universal joint (4) other end
Section (53), first shaft part (51), the axis of the 3rd shaft part (53) form angle between the axis of the second shaft part (52),
And second shaft part (52) affixed first shaft part (51) in one end, affixed 3rd shaft part (53) of the other end；
The other end of the universal joint (4) is connected with the first shaft part (51), and universal joint (4) is located at the upper of the first shaft part (51)
Side.
2. eccentric shaft universal connector as described in claim 1, which is characterized in that the axis of first shaft part (51) with
The axis of 3rd shaft part (53) is parallel, and the axis of the 3rd shaft part (53) is located on the right side of the axis of the first shaft part (51).
3. eccentric shaft universal connector as claimed in claim 2, which is characterized in that the lower end of the 3rd shaft part (53) is set
Convex spherical abrasive body is equipped with, which contacts with workpiece, and spherical surface body workpiece is carried out under the drive of power set
Grinding.
4. eccentric shaft universal connector as described in claim 1, which is characterized in that filled on the universal joint (4) with power
Put junction and be additionally provided with hold-down mechanism, the pressing device include connection taper shank (1), sliding axle (3), the one of the sliding axle (3)
End is fixed with compression spring (11), and the other end is fixedly connected with universal joint (4)；
The connection taper shank (1) forms by taper shank portion and with the cylindrical portion that taper shank portion big end is fixedly connected, and the taper shank portion is with moving
The inner cavity cooperation of power connector, to realize that connection taper shank (1) is fixedly connected with power connector body；The cylindrical portion, which is equipped with, to be supplied
The cavity that compression spring (11) and sliding axle (3) stretch into, the power connector body is by compression spring (11), sliding axle (3) to universal joint (4)
Apply uniform active force；
The bar hole for connecting with cavity and extending along axis is additionally provided on the outer wall of the cylindrical portion；It is set on the sliding axle (3)
There is the anti-falling piece (2) with bar hole cooperation, which can prevent sliding axle (3) from departing from cavity during exercise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721158689.6U CN207448192U (en) | 2017-09-11 | 2017-09-11 | A kind of eccentric shaft universal connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721158689.6U CN207448192U (en) | 2017-09-11 | 2017-09-11 | A kind of eccentric shaft universal connector |
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| Publication Number | Publication Date |
|---|---|
| CN207448192U true CN207448192U (en) | 2018-06-05 |
Family
ID=62282719
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721158689.6U Active CN207448192U (en) | 2017-09-11 | 2017-09-11 | A kind of eccentric shaft universal connector |
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| CN (1) | CN207448192U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108861269A (en) * | 2018-06-15 | 2018-11-23 | 湖南志合众信科技有限公司 | A kind of access goods flexible connecting device |
| CN109236846A (en) * | 2018-10-22 | 2019-01-18 | 中国船舶重工集团公司第七0七研究所 | The spherical surface scraping method of buffer multi-directional ball hinge |
| CN114383824A (en) * | 2020-10-16 | 2022-04-22 | 富准精密模具(嘉善)有限公司 | Tension testing device |
-
2017
- 2017-09-11 CN CN201721158689.6U patent/CN207448192U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108861269A (en) * | 2018-06-15 | 2018-11-23 | 湖南志合众信科技有限公司 | A kind of access goods flexible connecting device |
| CN109236846A (en) * | 2018-10-22 | 2019-01-18 | 中国船舶重工集团公司第七0七研究所 | The spherical surface scraping method of buffer multi-directional ball hinge |
| CN114383824A (en) * | 2020-10-16 | 2022-04-22 | 富准精密模具(嘉善)有限公司 | Tension testing device |
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