CN105134760A - Double-leaf spring flexible joint without axis drift - Google Patents
Double-leaf spring flexible joint without axis drift Download PDFInfo
- Publication number
- CN105134760A CN105134760A CN201510487641.9A CN201510487641A CN105134760A CN 105134760 A CN105134760 A CN 105134760A CN 201510487641 A CN201510487641 A CN 201510487641A CN 105134760 A CN105134760 A CN 105134760A
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- connecting rod
- spring
- leaf spring
- connection rod
- bottom sheet
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Abstract
The invention discloses a double-leaf spring flexible joint without axis drift. The joint is assembled through integrated machining or split machining of a linear cutting machine; the middle of a left connection rod is of an arc structure and the two ends of the left connection rod are straight-line segments, and a right connection rod is of a cylindrical structure; an upper leaf spring and a lower leaf spring are in the shapes of symmetrical arcs and symmetrically arranged at the two ends of the right connection rod; the arc-structure ends of the upper leaf spring and the lower leaf spring are connected with the left connection rod; and the middles of the left connection rod, the upper leaf spring, the lower leaf spring and the right connection rod form a closed hollow area. The structure ingeniously realizes no drift of a rotation axis of the flexible joint during a rotation process by using the two completely same arc-shaped leaf springs; the double-leaf spring flexible joint is low in structurally internal stress, thus expanding a rotation range, prolonging a fatigue life, and enhancing the bearing capacities of the connection rods and the structural stiffness in non-functional directions; and the double-leaf spring flexible joint disclosed by the invention is simple in structure, convenient to integrally machine by using the linear cutting machine to avoid introduction for assembly errors, and also capable of being assembled through split machining.
Description
Technical field
The present invention relates to a kind of submissive joint, specifically, refer to the submissive joint of the shaftless drift of a kind of biplate spring type.
Background technique
Submissive joint is a kind of under the effect of external force or moment, utilizes the resiliently deformable of material between adjacent rigid rod member, produce the structural type of a kind of kinematic pair of relative movement, has a great difference with the structure of traditional rigid motion pair.Submissive joint is a kind of typical submissive element in compliant mechanism.Compared to traditional rigidity joint (mechanism), submissive joint and compliant structure have lot of advantages: (1) gapless and friction, can realize the motion of degree of precision; (2) avoid wearing and tearing, improve the life-span; (3) avoid lubrication, avoid polluting; (4) can integration (or integration) design and processing; (5) effectively can alleviate impact during high-speed motion and not collide.The fields such as microposition, Fine Feed, micro-pose adjustment, microactrator, micromanipulator and micro assemby can be used in.But the submissive range of motion of traditional undercut profile is little, be difficult to the occasion adapting to some large corners.And although the range of movement in the common submissive joint of sheet spring type increases, the drift of rotation process axis is serious, and from axle poor rigidity, is difficult to improve rotation precision when large deformation.
The submissive joint that a kind of two faces relative at rectangular cubic are shaped with the groove of circular arc bottom is respectively disclosed in publication number CN2459740Y, be solid design between two circular arcs in this submissive joint, there is the problems such as slewing area is little, stress is large, use under being not suitable for large deformation situation.
Disclose in publication number CN101025187A a kind of on relative two faces of a rectangular cubic symmetry be cut with left and right two sheet springs, longitudinal rib has been cut by the longitudinal center of rectangular cubic, the transverse center of rectangular cubic has cut horizontal bar, and rectangular cubic is divided into upper and lower two bars by longitudinal rib.This submissive joint adopts hollow design, is the design being improved to similar spring type on the basis of publication number CN2459740Y, but the internal stress of longitudinal rib and horizontal bar is still very large, and actual effectively corner is little.Because this design is the same with the design in publication number CN2459740Y in essence, so serious in the drift of rotation process axis.
Summary of the invention
The object of the present invention is to provide the submissive joint of the shaftless drift of a kind of biplate spring type, the shaftless drift achieving submissive joint by being symmetrical arranged two identical circular arc reeds in two rigid link in submissive joint is rotated, increase the range of movement in submissive joint, strengthen the structural rigidity on the bearing capacity of connecting rod and non-functional direction, wire cutting machine tool integration processing or split type processing and assembling can be adopted.
To achieve these goals, this invention takes following technological scheme:
A kind of submissive joint of the biplate shaftless drift of spring type, it comprises left connecting rod 1, upper slice spring 2, bottom sheet spring 3, right connecting rod 4 and hollow section 5; Above-mentioned joint adopts wire cutting machine tool integration processing or split type processing and assembling; Integration processing is cut with left connecting rod 1 and right connecting rod 4 in the left side of a rectangular cubic and right side, cut upper slice spring 2 and bottom sheet spring 3 in the upper side and lower side symmetry, and upper slice spring 2, bottom sheet spring 3 form hollow section 5 with left connecting rod 1.Split type processing and assembling processes left connecting rod 1, upper slice spring 2, bottom sheet spring 3, right connecting rod 4 respectively, then be bolted or the mode such as welding is assembled; The centre of described left connecting rod 1 is arc structure two ends is straightway, and right connecting rod 4 is round column structure; Described upper slice spring 2 and bottom sheet spring 3 are symmetrical circular shape and are symmetricly set on the two ends of right connecting rod 4; Upper slice spring 2 is connected with left connecting rod 1 with the arc structure end of bottom sheet spring 3; The hollow section 5 that in the middle of left connecting rod 1, upper slice spring 2, bottom sheet spring 3, right connecting rod 4, composition is closed; The submissive joint of this structure composition makes its center of rotation while slewing area is large not drift about.
The submissive joint of the shaftless drift of biplate spring type of the present invention is a little:
1, two identical circular arc sheet springs are adopted to achieve center of rotation nothing drift in rotation process in submissive joint dexterously.
2, the structurally internal stress in the submissive joint of biplate spring type is little, improves slewing area and fatigue life, strengthens the structural rigidity on the bearing capacity of connecting rod and non-functional direction.
3, structure is simple, and convenient employing wire cutting machine tool integration processing, avoids assembly error and introduce, also can adopt split type processing and assembling.
Accompanying drawing explanation
Fig. 1 integrated design front view of the present invention
Fig. 2 split-type design front view of the present invention
Fig. 3 structural parameter schematic diagram of the present invention
In figure: 1, left connecting rod; 2, upper slice spring; 3, bottom sheet spring; 4, right connecting rod; 5, hollow section.
Embodiment
The present invention will be further described for composition graphs 1-Fig. 3:
A kind of submissive joint of the biplate shaftless drift of spring type, it comprises left connecting rod 1, upper slice spring 2, bottom sheet spring 3, right connecting rod 4 and hollow section 5.Wire cutting machine tool integration processing or split type processing and assembling can be adopted.Integration processing is cut with left connecting rod 1 and right connecting rod 4 in the left side of a rectangular cubic and right side, cut upper slice spring 2 and bottom sheet spring 3 in the upper side and lower side symmetry, and upper slice spring 2, bottom sheet spring 3 form hollow section 5 with left connecting rod 1.Split type processing and assembling first processes left connecting rod 1, upper slice spring 2, bottom sheet spring 3, right connecting rod 4 respectively, then be bolted or the mode such as welding is assembled.
Above-mentioned circular arc upper slice spring 2 and bottom sheet spring 3 subtended angle θ=45 °, the radius of curvature R of upper slice spring 2 and thickness D
2meet R/D
2>=40, the radius of curvature R of bottom sheet spring 3 and thickness D
3meet R/D
3>=40, upper slice spring 2 and bottom sheet spring 3 space D
1=10mm, center of rotation O are positioned at a spring 2 and bottom sheet spring 3 neutral position, the distance D of O point and upper slice spring 2 and bottom sheet spring 3 end
4meet D
4=8mm.
The upper slice spring 2 in above-mentioned submissive joint can adopt 65Mn spring steel with bottom sheet spring 3, and submissive joint also can adopt the cutting of 65Mn spring steel one.The desirable 20mm of radius of curvature R of upper slice spring 2 and bottom sheet spring 3, thickness D
2with thickness D
3desirable 0.5mm.
The submissive joint of the shaftless drift of biplate spring type of the present invention compared with existing undercut profile, the submissive joint of sheet spring type, large, the shaftless drift of slewing area, long service life, and rigidity on non-functional direction is larger.
Claims (2)
1. the submissive joint of the shaftless drift of biplate spring type, is characterized in that: this joint comprises left connecting rod (1), upper slice spring (2), bottom sheet spring (3), right connecting rod (4) and hollow section (5); The centre of described left connecting rod (1) is arc structure two ends is straightway, and right connecting rod (4) is round column structure; Described upper slice spring (2) and bottom sheet spring (3) are symmetrical circular shape and are symmetricly set on the two ends of right connecting rod (4); Upper slice spring (2) is connected with left connecting rod (1) with the arc structure end of bottom sheet spring (3); The hollow section (5) that in the middle of left connecting rod (1), upper slice spring (2), bottom sheet spring (3), right connecting rod (4), composition is closed.
2. the submissive joint of the shaftless drift of biplate spring type according to claim 1, is characterized in that: this joint adopts wire cutting machine tool integration processing or split type processing and assembling; Integration processing is cut with left connecting rod (1) and right connecting rod (4), cut upper slice spring (2) and bottom sheet spring (3) in the upper side and lower side symmetry, upper slice spring (2), bottom sheet spring (3) form hollow section (5) with left connecting rod (1); Split type processing and assembling processes left connecting rod (1), upper slice spring (2), bottom sheet spring (3), right connecting rod (4) respectively, then be bolted or the mode such as welding is assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510487641.9A CN105134760B (en) | 2015-08-10 | 2015-08-10 | The shaftless submissive joint of drift of biplate spring type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510487641.9A CN105134760B (en) | 2015-08-10 | 2015-08-10 | The shaftless submissive joint of drift of biplate spring type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105134760A true CN105134760A (en) | 2015-12-09 |
| CN105134760B CN105134760B (en) | 2018-12-07 |
Family
ID=54720254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510487641.9A Expired - Fee Related CN105134760B (en) | 2015-08-10 | 2015-08-10 | The shaftless submissive joint of drift of biplate spring type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134760B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662010A (en) * | 2018-05-29 | 2018-10-16 | 湖南大学 | A kind of zero axle drift reed-type flexible hinge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201982483U (en) * | 2010-12-30 | 2011-09-21 | 三门峡中原精密有限公司 | Rigid body hinging structure using leaf spring hinge and leaf spring hinge thereof |
| US20140255083A1 (en) * | 2013-03-08 | 2014-09-11 | Paccar Inc | Compliant isolator |
-
2015
- 2015-08-10 CN CN201510487641.9A patent/CN105134760B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201982483U (en) * | 2010-12-30 | 2011-09-21 | 三门峡中原精密有限公司 | Rigid body hinging structure using leaf spring hinge and leaf spring hinge thereof |
| US20140255083A1 (en) * | 2013-03-08 | 2014-09-11 | Paccar Inc | Compliant isolator |
Non-Patent Citations (3)
| Title |
|---|
| 孙炜: "新型大行程柔顺并联机构理论与实验研究", 《中国博士学位论文全文数据库》 * |
| 裴旭等: "大行程转动柔性铰链性能测试及实验", 《光学精密工程》 * |
| 赵宏哲等: "三角形柔性铰链的建模与分析", 《机械工程学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662010A (en) * | 2018-05-29 | 2018-10-16 | 湖南大学 | A kind of zero axle drift reed-type flexible hinge |
| CN108662010B (en) * | 2018-05-29 | 2020-08-07 | 湖南大学 | Zero-axis floating reed type flexible hinge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105134760B (en) | 2018-12-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 Termination date: 20210810 |