CN106763180B - A kind of groove infall has the rolling guide of central symmetry variable curvature reciprocal curve - Google Patents
A kind of groove infall has the rolling guide of central symmetry variable curvature reciprocal curve Download PDFInfo
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- CN106763180B CN106763180B CN201710181525.3A CN201710181525A CN106763180B CN 106763180 B CN106763180 B CN 106763180B CN 201710181525 A CN201710181525 A CN 201710181525A CN 106763180 B CN106763180 B CN 106763180B
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- endpoint
- guide rail
- reciprocal curve
- point
- curve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C31/00—Bearings for parts which both rotate and move linearly
- F16C31/04—Ball or roller bearings
Abstract
The present invention proposes a kind of variable curvature reciprocal curve for using in guide rail groove infall and being centrosymmetric about ditch groove center line intersection point, it is characterized by: endpoint (4) and endpoint (10), endpoint (6) and endpoint (12), endpoint (7) and endpoint (13), endpoint (9) and endpoint (15), (1) section reciprocal curve (61) and (3) section reciprocal curve (63), (2) section reciprocal curve (62) is centrosymmetric with (4) section reciprocal curve (64) respectively about ditch groove center line intersection point (16).This variable curvature reciprocal curve being centrosymmetric about ditch groove center line intersection point, it can release when the contact point of two ball of groove infall is just in the trench on heart line, and the direction of motion of moving platform is just perpendicular to the two ball lines of centres and when two balls are pressed to trench wall, the movement catching phenomenon that two balls are generated in guide rail groove infall, keep guide rail movement steady, reduces the abrasion of guide rail.
Description
Technical field
The present invention relates to two-dimensional scrolling guide rail technology, in particular to a kind of two-dimensional scrolling guide rail groove cross transition curve.
Background technique
The purpose of two-dimensional scrolling guide rail is to guarantee that carrier can carry out the smooth smooth motion of any direction in the horizontal plane, is made
For the planar contact pair of low contact stress, which are mainly applied to need equipment flexible caused by freely discharging because of factors such as temperature changes
And precise machining equipment temperature-compensating fulcrum, such as superconduction Cryo Equipment, forging forming equipment, processing work platform and precision
Operate occasion etc..
The guide rail groove of two-dimensional scrolling guide rail is generally in the reciprocal curve of infall about two guide rail ditch groove center lines
Symmetrical iso-curvature circular arc, when two ball contact point of the groove infall just direction of motion of moving platform on heart line in the trench
When just perpendicular to the two ball lines of centres, two ball stress are symmetrical about ditch groove center line, thus cause two balls in guide rail
Groove infall clamping stagnation blocks the movement of moving platform and aggravates way rub.
The present invention proposes that in guide rail groove infall, the reciprocal curve is about in groove using a kind of variable curvature reciprocal curve
Heart line intersection point is centrosymmetric structure, and this variable curvature reciprocal curve being centrosymmetric about ditch groove center line intersection point can
So that two-dimensional scrolling guide rail, under above-mentioned moving condition, two ball stress are asymmetric about ditch groove center line, to make two balls
Separation, avoids above-mentioned ball in the catching phenomenon of guide rail groove infall.
Summary of the invention
The invention adopts the following technical scheme:
To avoid two balls in guide rail groove infall clamping stagnation, uses in guide rail groove infall and handed over about ditch groove center line
The variable curvature reciprocal curve that point is centrosymmetric, so that when the contact point 27 of two ball 25 and 26 of groove infall is just in groove
On center line 21-22, and two balls just perpendicular to the two ball lines of centres and are pressed to trench wall by the direction of motion of moving platform
When, the normal 17-18 and normal 19-20 at the point of contact 23 and 24 of two balls 25 and 26 and reciprocal curve are about ditch groove center line
21-22 is asymmetric, and the suffered resultant force of two balls is unequal perpendicular to the component on the direction ditch groove center line 21-22, to make two
Ball separation, releases the clamping stagnation of guide rail groove infall.
Invention the utility model has the advantages that
It is proposed by the present invention that the variable curvature being centrosymmetric about ditch groove center line intersection point is used in guide rail groove infall
Reciprocal curve can be released when the contact point of two ball of groove infall is just in the trench on heart line, and the movement of moving platform
Just perpendicular to the two ball lines of centres and when two balls are pressed to trench wall, two balls are generated in guide rail groove infall in direction
Movement catching phenomenon, keep guide rail movement steady, reduce the abrasion of guide rail.
Detailed description of the invention
Fig. 1 is the guide rail base for removing moving platform, in figure, 1- guide rail base, and 2- ball, 3- guide rail groove.
Fig. 2 is ball in guide rail groove infall, figure, 17-18- normal, 19-20- normal, 21-22- ditch groove center
Line, 23,24- point of contacts, 25,26- balls, the contact point 27-.
Fig. 3 is guide rail groove infall variable curvature reciprocal curve, and in figure, 61- first segment reciprocal curve, 62- second segment is fallen
Angular curve, 63- third section reciprocal curve, the 4th section of reciprocal curve of 64-, 4, the first end point and second of 6- first segment reciprocal curve
Endpoint, the first intermediate point of 5- first segment reciprocal curve, 7, the third endpoint and the 4th endpoint of 9- second segment reciprocal curve, 8-
Second intermediate point of two sections of reciprocal curves, 10, the 5th endpoint and the 6th endpoint of 12- third section reciprocal curve, 11- third section are fallen
The third intermediate point of angular curve, 13, the 7th endpoint and the 8th endpoint of the 4th section of reciprocal curve of 15-, the 4th section of reciprocal curve of 14-
The 4th intermediate point, 16- ditch groove center line intersection point.
Specific embodiment
It is a kind of to use the variable curvature reciprocal curve being centrosymmetric about ditch groove center line intersection point in guide rail groove infall
As shown in Figure 3, wherein from first end point 4, through the first intermediate point 5, to the second endpoint 6, each point is bent on first segment reciprocal curve 61
Rate is gradually reduced, and tangent in first end point 4 and the second endpoint 6 and guide rail trench wall.From third endpoint 7, through the second intermediate point
8, to the 4th endpoint 9, each point curvature is gradually reduced on second segment reciprocal curve 62, and third endpoint 7 and the 4th endpoint 9 with lead
Rail trench wall is tangent.From the 5th endpoint 10, through third intermediate point 11, to the 6th endpoint 12, each point on third section reciprocal curve 63
Curvature is gradually reduced, and tangent in the 5th endpoint 10 and the 6th endpoint 12 and guide rail trench wall.From the 7th endpoint 13, in the 4th
Between put 14, to the 8th endpoint 15, each point curvature is gradually reduced on the 4th section of reciprocal curve 64, and at the 7th endpoint 13 and the 8th end
Point 15 is tangent with guide rail trench wall.First end point 4 and the 5th endpoint 10, the second endpoint 6 and the 6th endpoint 12, third endpoint 7 with
7th endpoint 13, the 4th endpoint 9 and the 8th endpoint 15, first segment reciprocal curve 61 and third section reciprocal curve 63, second segment fall
Angular curve 62 is centrosymmetric with the 4th section of reciprocal curve 64 respectively about ditch groove center line intersection point 16.
Reciprocal curve can also be made of the tangent combination circular arc of adjacent circular arc, from first end point 4, through the first intermediate point 5,
To the second endpoint 6, first segment reciprocal curve 61 is gradually reduced by k sections of curvature, the tangent combination circular arc composition of adjacent circular arc, and
First end point 4 and the second endpoint 6 and guide rail trench wall are tangent.From third endpoint 7, through the second intermediate point 8, to the 4th endpoint 9,
Two sections of reciprocal curves 62 are gradually reduced by k sections of curvature, the tangent combination circular arc composition of adjacent circular arc, and in third endpoint 7 and the
Four endpoints 9 and guide rail trench wall are tangent.From the 5th endpoint 10, through third intermediate point 11, to the 6th endpoint 12, third section chamfering is bent
Line 63 is gradually reduced by k sections of curvature, the tangent combination circular arc composition of adjacent circular arc, and the 5th endpoint 10 and the 6th endpoint 12 with
Guide rail trench wall is tangent.From the 7th endpoint 13, through the 4th intermediate point 14, to the 8th endpoint 15, the 4th section of reciprocal curve 64 is by k sections
Curvature is gradually reduced, the tangent combination circular arc composition of adjacent circular arc, and in the 7th endpoint 13 and the 8th endpoint 15 and guide rail groove
Wall is tangent.First end point 4 and the 5th endpoint 10, the second endpoint 6 and the 6th endpoint 12, third endpoint 7 and the 7th endpoint the 13, the 4th
Endpoint 9 and the 8th endpoint 15, first segment reciprocal curve 61 and third section reciprocal curve 63, second segment reciprocal curve 62 and the 4th section
Reciprocal curve 64 is centrosymmetric respectively about ditch groove center line intersection point 16.The wherein natural number of k desirable 2 to 100.
Claims (2)
1. a kind of have the variable curvature reciprocal curve being centrosymmetric about ditch groove center line intersection point in guide rail groove infall
Two-dimensional scrolling guide rail, wherein from first end point (4), through the first intermediate point (5), to the second endpoint (6), first segment reciprocal curve
(61) each point curvature is gradually reduced on, and tangent in first end point (4) and the second endpoint (6) and guide rail trench wall, from third end
Point (7), through the second intermediate point (8), to the 4th endpoint (9), each point curvature is gradually reduced on second segment reciprocal curve (62), and
Third endpoint (7) and the 4th endpoint (9) and guide rail trench wall are tangent, from the 5th endpoint (10), through third intermediate point (11), to
Six endpoints (12), each point curvature is gradually reduced on third section reciprocal curve (63), and in the 5th endpoint (10) and the 6th endpoint
(12) tangent with guide rail trench wall, from the 7th endpoint (13), through the 4th intermediate point (14), to the 8th endpoint (15), the 4th section is fallen
Each point curvature is gradually reduced on angular curve (64), and tangent in the 7th endpoint (13) and the 8th endpoint (15) and guide rail trench wall,
It is characterized by: first end point (4) and the 5th endpoint (10), the second endpoint (6) and the 6th endpoint (12), third endpoint (7) with
7th endpoint (13), the 4th endpoint (9) and the 8th endpoint (15), first segment reciprocal curve (61) and third section reciprocal curve
(63), second segment reciprocal curve (62) is in center pair respectively about ditch groove center line intersection point (16) with the 4th section of reciprocal curve (64)
Claim.
2. a kind of have the variable curvature reciprocal curve being centrosymmetric about ditch groove center line intersection point in guide rail groove infall
Two-dimensional scrolling guide rail, wherein from first end point (4), through the first intermediate point (5), to the second endpoint (6), first segment reciprocal curve
(61) it is made of the combination circular arc that k sections of curvature are gradually reduced, adjacent circular arc is tangent, and in first end point (4) and the second endpoint (6)
It is tangent with guide rail trench wall, from third endpoint (7), through the second intermediate point (8), to the 4th endpoint (9), second segment reciprocal curve
(62) it is made of the combination circular arc that k sections of curvature are gradually reduced, adjacent circular arc is tangent, and in third endpoint (7) and the 4th endpoint (9)
Tangent with guide rail trench wall, from the 5th endpoint (10), through third intermediate point (11), to the 6th endpoint (12), third section chamfering is bent
The combination circular arc that line (63) is gradually reduced by k sections of curvature, adjacent circular arc is tangent forms, and in the 5th endpoint (10) and the 6th endpoint
(12) tangent with guide rail trench wall, from the 7th endpoint (13), through the 4th intermediate point (14), to the 8th endpoint (15), the 4th section is fallen
The combination circular arc that angular curve (64) is gradually reduced by k sections of curvature, adjacent circular arc is tangent forms, and in the 7th endpoint (13) and the 8th
Endpoint (15) and guide rail trench wall are tangent, wherein the natural number of k desirable 2 to 100, it is characterised in that: first end point (4) and the 5th
Endpoint (10), the second endpoint (6) and the 6th endpoint (12), third endpoint (7) and the 7th endpoint (13), the 4th endpoint (9) and the
Eight endpoints (15), first segment reciprocal curve (61) and third section reciprocal curve (63), second segment reciprocal curve (62) and the 4th section
Reciprocal curve (64) is centrosymmetric respectively about ditch groove center line intersection point (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181525.3A CN106763180B (en) | 2017-03-24 | 2017-03-24 | A kind of groove infall has the rolling guide of central symmetry variable curvature reciprocal curve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181525.3A CN106763180B (en) | 2017-03-24 | 2017-03-24 | A kind of groove infall has the rolling guide of central symmetry variable curvature reciprocal curve |
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| Publication Number | Publication Date |
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| CN106763180A CN106763180A (en) | 2017-05-31 |
| CN106763180B true CN106763180B (en) | 2019-04-09 |
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| CN201710181525.3A Active CN106763180B (en) | 2017-03-24 | 2017-03-24 | A kind of groove infall has the rolling guide of central symmetry variable curvature reciprocal curve |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4296974A (en) * | 1979-02-14 | 1981-10-27 | Hiroshi Teramachi | Linear ball bearing unit |
| CN2241604Y (en) * | 1995-09-04 | 1996-12-04 | 上银科技股份有限公司 | Linear spherical guide recirculating structure |
| CN1211690A (en) * | 1997-09-17 | 1999-03-24 | 上银科技股份有限公司 | Rolling body circulating path structure of rectilinear motion roll bearing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4051845B2 (en) * | 2000-01-13 | 2008-02-27 | 日本精工株式会社 | Linear motion guide bearing device |
| US20050157962A1 (en) * | 2003-12-02 | 2005-07-21 | Nsk Ltd. | Linear guide apparatus |
| US7934870B2 (en) * | 2008-08-25 | 2011-05-03 | Hiwin Technologies Corp. | Circulating structure for a linear guideway |
-
2017
- 2017-03-24 CN CN201710181525.3A patent/CN106763180B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4296974A (en) * | 1979-02-14 | 1981-10-27 | Hiroshi Teramachi | Linear ball bearing unit |
| CN2241604Y (en) * | 1995-09-04 | 1996-12-04 | 上银科技股份有限公司 | Linear spherical guide recirculating structure |
| CN1211690A (en) * | 1997-09-17 | 1999-03-24 | 上银科技股份有限公司 | Rolling body circulating path structure of rectilinear motion roll bearing |
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| Publication number | Publication date |
|---|---|
| CN106763180A (en) | 2017-05-31 |
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