CN107314008B - Linkage locking mechanism for plane cam - Google Patents
Linkage locking mechanism for plane cam Download PDFInfo
- Publication number
- CN107314008B CN107314008B CN201710669980.8A CN201710669980A CN107314008B CN 107314008 B CN107314008 B CN 107314008B CN 201710669980 A CN201710669980 A CN 201710669980A CN 107314008 B CN107314008 B CN 107314008B
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- block
- plane cam
- cam
- locking
- linkage shaft
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- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Classifications
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/18—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to a plane cam linkage locking mechanism, which comprises a left pressing block, a left locking block, a linkage shaft, a right locking block, a right pressing block, a movable plane cam and a fixed plane cam, wherein the movable plane cam is arranged on the left pressing block; the left pressing block is fixedly connected with the left end of the linkage shaft; the left locking block is sleeved on the linkage shaft and is arranged close to the left pressing block; the fixed plane cam is fixedly arranged at the right end of the linkage shaft, the movable plane cam is arranged on the linkage shaft corresponding to the fixed plane cam, a circumferential groove is formed in the linkage shaft corresponding to the movable plane cam, a limiting screw II is arranged on the movable plane cam, and the inner end of the limiting screw II is arranged in the groove; the right locking block and the right pressing block are sleeved on the universal driving shaft, and the right pressing block is located between the right locking block and the movable plane cam. The invention has simple structure, convenient operation, time and labor saving and improved operation efficiency; the contact surface of the left locking block and the left compression block and the contact surface of the right compression block and the right locking block are arc-tooth-shaped surfaces, so that the locking reliability is improved.
Description
Technical Field
The invention belongs to the technical field of mechanical locking devices, and particularly relates to a plane cam linkage locking mechanism.
Background
In the locking mechanism of the prior art, when the moving part and the reference part move relatively, the locking mechanism generally tightly attaches the moving part and the reference part, and the locking is achieved by generating a large friction force. This approach has several disadvantages: firstly, the moving part and the reference part are abraded, and secondly, the locking and unlocking actions take a long time.
Disclosure of Invention
In order to solve the technical problems, the invention provides the plane cam linkage locking mechanism which is simple and compact in structure, quick and convenient to operate and reliable in locking.
The technical scheme adopted by the invention is as follows: a linkage locking mechanism of a plane cam comprises a left pressing block, a left locking block, a linkage shaft, a right locking block, a right pressing block, a movable plane cam and a fixed plane cam; the left pressing block is fixedly connected with the left end of the linkage shaft; the left locking block is sleeved on the linkage shaft and is arranged close to the left pressing block; the fixed plane cam is fixedly arranged at the right end of the linkage shaft, the movable plane cam is arranged on the linkage shaft corresponding to the fixed plane cam, a circumferential groove is formed in the linkage shaft corresponding to the movable plane cam, a limiting screw II is arranged on the movable plane cam, and the inner end of the limiting screw II is arranged in the groove; the right locking block and the right pressing block are sleeved on the linkage shaft and are positioned between the left locking block and the movable planar cam, and the right pressing block is positioned between the right locking block and the movable planar cam.
The plane cam linkage locking mechanism further comprises an adjusting washer sleeved on the linkage shaft and located between the right pressing block and the movable plane cam.
In the planar cam linkage locking mechanism, the middle part of the linkage shaft is provided with a limiting key groove.
In the plane cam linkage locking mechanism, the right side of the left pressing block and the left side of the right locking block on the linkage shaft are respectively provided with a spring, embedded in the body and sleeved on the linkage shaft.
In the planar cam linkage locking mechanism, the movable planar cam and the fixed planar cam adopt self-locking planar cams which are matched with each other.
In the plane cam linkage locking mechanism, the contact surface of the left locking block and the left pressing block and the contact surface of the right pressing block and the right locking block are arc tooth-shaped surfaces.
In the plane cam linkage locking mechanism, the handle is arranged on the side surface of the movable plane cam.
In the plane cam linkage locking mechanism, the left locking block and the right locking block are combined into a whole.
Compared with the prior art, the invention has the beneficial effects that:
the distance between the left locking block and the right locking block is controlled by the movable planar cam and the fixed planar cam which are matched with each other, so that the left locking block and the right locking block clamp the body, the structure is simple, the operation is convenient and fast, time and labor are saved, and the operation efficiency is improved; in addition, the contact surface of the left locking block and the left compression block and the contact surface of the right compression block and the right locking block are arc tooth-shaped surfaces, so that the locking reliability is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an expanded view of the fixed plane cam.
Fig. 3 is an expanded view of the movable flat cam.
Fig. 4 is a schematic structural view of a toothed surface.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the device comprises a left pressing block 1, a connecting pin I2, a left locking block 3, a spring 4, a linkage shaft 6, a spring 16, a right locking block 15, a right pressing block 9, an adjusting washer 10, a movable plane cam 12 and a fixed plane cam 13; the left pressing block 1 is fixedly connected with the left end of the linkage shaft 6 through a connecting pin I2. The left locking block 3 is sleeved on the linkage shaft 6 and is arranged close to the left pressing block 1, and the spring 4 is sleeved on the linkage shaft 6 and is arranged close to the left pressing block 1 and is positioned on the right side of the left pressing block 1. The spring 16 is sleeved on the linkage shaft 6 and is arranged close to the right side of the right pressing block 9, and a limiting key groove is formed in the middle of the linkage shaft 6.
The fixed plane cam 13 is fixedly arranged at the right end of the linkage shaft 6 through a connecting pin II 14, the movable plane cam 12 is arranged on the linkage shaft 6 and is positioned at the left side of the fixed plane cam 13, and the movable plane cam and the fixed plane cam adopt self-locking plane cams matched with each other. A circumferential groove is formed in the linkage shaft 6 corresponding to the movable plane cam 12, a limiting screw II 11 is arranged on the movable plane cam 12, the inner end of the limiting screw II 11 is arranged in the groove, and a handle 8 is arranged on the side face of the movable plane cam 12. Under the action of the limiting screw II 11, the rotating angle of the movable plane cam 12 is limited, and the movable plane cam 12 and the fixed plane cam 13 are prevented from being separated from the highest point of the meshing surface due to excessive force in the locking process, so that the locking is disabled.
And a right locking block 15, a right pressing block 9 and an adjusting washer 10 are sequentially arranged between the left locking block 3 and the movable plane cam 12 on the linkage shaft 6 from left to right. The contact surface of the left locking block 3 and the left compression block 1 and the contact surface of the right compression block 15 and the right locking block 9 are arc-tooth-shaped surfaces. The invention utilizes the method of the tooth root strength and the tooth surface friction force of the arc tooth profile to replace the method of generating friction force by common plane contact fitting, and improves the locking reliability. Along with the clearance between the tooth diminishes, final intermeshing's flank of tooth is laminated each other and is compressed tightly, and the arrangement density and the profile of tooth height of tooth can be according to the relative positioning accuracy of left latch segment 3 and right latch segment 15 and body 5 and make corresponding adjustment to guarantee the intensity of tooth root, guarantee the reliability of locking. The left locking block 3 and the right locking block 15 can be used as two independent parts as in the present embodiment, or can be combined into a whole.
When the universal driving device is used, the linkage shaft 6 penetrates through the through hole of the body 5, the limiting screw I7 is arranged in the through hole of the body 5 corresponding to the limiting key groove, and the tail end of the limiting screw I7 is matched with the axial limiting key groove of the linkage shaft 6, so that the rotation and axial movement distance of the linkage shaft 6 is limited. The left locking block 3 and the right locking block 15 are respectively positioned on two sides of the body 5, when the movable planar cam 12 rotates relative to the fixed planar cam 13, the inclined plane of the movable planar cam 12 climbs relative to the inclined plane of the fixed planar cam, the distance between the end faces of the movable planar cam 12 and the fixed planar cam 13 is increased, at the moment, the movable planar cam 12 can push the adjusting gasket 10 and the right pressing block 9 to move leftwards together, the linkage shaft 6 is driven simultaneously, the left pressing block 1 moves rightwards, and finally the left pressing block 1 and the left locking block 3 as well as the tooth-shaped faces of the right pressing block 9 and the right locking block 15 are meshed with each other, so that the linked quick locking is realized. During unlocking, the handle 8 is rotated reversely, the locking force is relieved, and under the action of the spring 4 and the spring 16, the left pressing block 1 and the right pressing block 9 are separated from the meshing surface with the left locking block 3 and the right locking block 15 simultaneously, so that quick unlocking is realized.
Claims (6)
1. A linkage locking mechanism of a plane cam comprises a left pressing block (1), a left locking block (3), a linkage shaft (6), a right locking block (15), a right pressing block (9), a movable plane cam (12) and a fixed plane cam (13); the left pressing block (1) is fixedly connected with the left end of the linkage shaft (6); the left locking block is sleeved on the linkage shaft (6) and is arranged close to the left pressing block (1); the fixed plane cam (13) is fixedly arranged at the right end of the linkage shaft (6), the movable plane cam (12) is arranged on the linkage shaft (6) corresponding to the fixed plane cam, a circumferential groove is formed in the linkage shaft (6) corresponding to the movable plane cam (12), a limiting screw II (11) is arranged on the movable plane cam (12), and the inner end of the limiting screw II (11) is arranged in the groove; the right locking block (15) and the right pressing block (9) are sleeved on the linkage shaft (6) and are positioned between the left locking block (3) and the movable planar cam (12), and the right pressing block (9) is positioned between the right locking block (15) and the movable planar cam (12); the device also comprises an adjusting washer (10), wherein the adjusting washer (10) is sleeved on the universal driving shaft (6) and is positioned between the right pressing block (9) and the movable plane cam (12); the middle part of the linkage shaft (6) is provided with a limit key slot.
2. The flat cam interlocking lock mechanism as claimed in claim 1, wherein: a spring is respectively arranged on the right side of the left pressing block (1) and the left side of the right locking block (15) on the universal driving shaft (6), embedded in the body (5) and sleeved on the universal driving shaft (6).
3. A flat cam interlocking lock mechanism according to claim 1, wherein: the movable plane cam (12) and the fixed plane cam (13) adopt self-locking plane cams which are matched with each other.
4. The flat cam interlocking lock mechanism according to claim 1, wherein: the contact surface of the left locking block (3) and the left compression block (1) and the contact surface of the right compression block (9) and the right locking block (15) are arc-shaped toothed surfaces.
5. The flat cam interlocking lock mechanism as claimed in claim 1, wherein: the side surface of the movable plane cam (12) is provided with a handle (8).
6. The flat cam interlock locking mechanism according to claim 1, further characterized in that: the left locking block (3) and the right locking block (15) are combined into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669980.8A CN107314008B (en) | 2017-08-08 | 2017-08-08 | Linkage locking mechanism for plane cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669980.8A CN107314008B (en) | 2017-08-08 | 2017-08-08 | Linkage locking mechanism for plane cam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107314008A CN107314008A (en) | 2017-11-03 |
| CN107314008B true CN107314008B (en) | 2023-03-17 |
Family
ID=60170164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710669980.8A Active CN107314008B (en) | 2017-08-08 | 2017-08-08 | Linkage locking mechanism for plane cam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107314008B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511127A (en) * | 1983-04-18 | 1985-04-16 | Jergens, Inc. | Hydraulic-mechanical clamping device |
| CN2853103Y (en) * | 2005-12-28 | 2007-01-03 | 张敏 | Self locking device of tower rail |
| TWM330376U (en) * | 2007-09-28 | 2008-04-11 | jin-chao Zhang | Modularized preloaded quick release structure |
| CN201505891U (en) * | 2009-08-24 | 2010-06-16 | 浙江吉利汽车有限公司 | Cam shaft oil seal tool |
| GB2529880B (en) * | 2014-09-05 | 2016-11-02 | Gardiner Pole Systems Ltd | A clamp assembly |
| CN105313043A (en) * | 2015-11-01 | 2016-02-10 | 四川泛华航空仪表电器有限公司 | Locking clamp for assembling and clamping experiment flow sensor quickly |
| CN207111609U (en) * | 2017-08-08 | 2018-03-16 | 江南工业集团有限公司 | A kind of plane cam linkage locking mechanism |
-
2017
- 2017-08-08 CN CN201710669980.8A patent/CN107314008B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107314008A (en) | 2017-11-03 |
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Effective date of registration: 20231030 Address after: 411100 building b09046, Hunan Jiangnan Machinery Industry Co., Ltd., nanzhushan Town, Yuhu District, Xiangtan City, Hunan Province Patentee after: Hunan Jiangnan Machinery Industry Co.,Ltd. Address before: 411207 nanzhushan Town, Yuhu District, Xiangtan City, Hunan Province Patentee before: JIANGNAN INDUSTRIES GRUOP Co.,Ltd. |
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| TR01 | Transfer of patent right |