CN209491676U - A kind of spiral clamping device - Google Patents
A kind of spiral clamping device Download PDFInfo
- Publication number
- CN209491676U CN209491676U CN201822117794.6U CN201822117794U CN209491676U CN 209491676 U CN209491676 U CN 209491676U CN 201822117794 U CN201822117794 U CN 201822117794U CN 209491676 U CN209491676 U CN 209491676U
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- China
- Prior art keywords
- connecting rod
- sleeve
- hinged
- top cover
- movable plate
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Abstract
The utility model relates to a kind of spiral clamping devices, it include a sleeve, the sleeve upper end is bolted with a top cover, running through vertically in the middle part of the top cover has threaded hole, a screw rod is provided with above top cover to wear by threaded hole to sleeve inner, described sleeve pipe upper end lateral wall central symmetry is hinged with first connecting rod, groove bar is offered on the first connecting rod, the first connecting rod lower end is hinged with second connecting rod, the second connecting rod lower end is hinged with collet, a U-shaped movable plate is bolted on screw rod above the top cover, the movable plate is opening down, and both ends pass through groove bar of the pin on the first screw rod and connect with movable plate, the spiral clamping device is structurally reasonable, it is easy to use.
Description
Technical field
The present invention relates to machinery fields, are a kind of spiral clamping devices.
Background technique
Clamping device is widely used in production practices and daily life.At present mainly using link mechanism, convex
Wheel mechanism or worm drive clamp to realize, being essentially all is single machine structure, and such clamping is not very reliable.If some
Component is acted on by load, and whole device is easy to loosen, and leads to clamping failures.
Utility model content
In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a kind of spiral clamp to fill
It sets, it is not only structurally reasonable but also easy to use.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of spiral clamping device includes
One sleeve, the sleeve upper end are bolted with a top cover, and running through vertically in the middle part of the top cover has threaded hole, is provided with one above top cover
Screw rod is worn by threaded hole to sleeve inner, and the sleeve upper end lateral wall central symmetry is hinged with first connecting rod, and described first
Groove bar is offered on connecting rod, the first connecting rod lower end is hinged with second connecting rod, and the second connecting rod lower end is hinged with collet,
A U-shaped movable plate is bolted on screw rod above the top cover, the movable plate is opening down, and both ends are worn by pin
The groove bar crossed on the first screw rod is connect with movable plate.
Further, sleeve upper end inner wall is provided with internal screw thread, and top cover peripheral part is provided with external screw thread, top cover it is outer
Screw thread is screwed on the internal screw thread of sleeve.
Further, the collet includes straight-bar and curved rod, and end is fixed is integrated, one end of the straight-bar
Hinged with second connecting rod, the other end and the fixed place of being integrated of curved rod are hinged on sleeve bottom end outer surface.
Further, the curved rod is relative orientation, i.e. two curved rods are towards far from one lateral bending of sleeve central axes
It is bent.
Further, a nut is fixed in the middle part of the movable plate horizontal segment, and movable plate is connect by nut with screw rod,
Groove bar on the first connecting rod extends along first connecting rod length direction.
Further, the screw rod is bolted with two bearings, the diameter and sleeve diameter of the bearing in sleeve inner side
It is identical to limit left and right freedom degree of the screw rod in sleeve.
Further, the sleeve upper end side wall central symmetry is installed with articulated slab, and every side is arranged in parallel with two pieces of hinges
Between fishplate bar and two articulated slabs there are gap for first connecting rod be inserted into, and through a pin through articulated slab with it is hinged on first connecting rod
Hole is hinged, and the sleeve lower end side and upper end side are installed with articulated slab with central symmetry, every side be arranged in parallel with two pieces it is hinged
It is hinged for straight-bar and the fixed place of being integrated of curved rod that there are gaps between plate and two articulated slabs.
Compared with prior art, the utility model has the following beneficial effects: the spiral clamping device, passes through rotating wire
Bar drives movable plate to move up and down, and then drives first connecting rod and second connecting rod hingedly to form revolute pair rotation, finally drives two
Collet is clamped and unclamps, and the utility model is clamped using the combined mechanism that worm drive and link mechanism form to realize,
Improve the reliability of clamping.
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the utility model embodiment organigram；
Fig. 2 is the connection schematic diagram of screw rod and movable plate in Fig. 1；
Fig. 3 is the part drawing of Fig. 1 middle sleeve；
Fig. 4 is the part drawing of collet in Fig. 1.
In figure: 1- sleeve, 2- top cover, 3- threaded hole, 4- screw rod, 5- first connecting rod, 6- groove bar, 7- second connecting rod, 8- folder
Head, 9- movable plate, 10- pin, 11- straight-bar, 12- curved rod, 13- nut, 14- bearing, 15- articulated slab, 16- hinge hole.
Specific embodiment
As shown in Fig. 1 ~ 4, a kind of spiral clamping device includes a sleeve 1, and the sleeve upper end is bolted with a top cover
2, the top cover middle part through there is threaded hole 3, is provided with a screw rod 4 above top cover and is worn by threaded hole to sleeve inner vertically,
The sleeve upper end lateral wall central symmetry is hinged with first connecting rod 5, offers groove bar 6 on the first connecting rod, and described first
Connecting rod lower end is hinged with second connecting rod 7, and the second connecting rod lower end is hinged with collet 8, spiral shell on the screw rod above the top cover
It is connected to a U-shaped movable plate 9, the movable plate is opening down, and both ends pass through slot of the pin 10 on the first screw rod
Item is connect with movable plate.
In the utility model embodiment, sleeve upper end inner wall is provided with internal screw thread, and top cover peripheral part is provided with outer
Screw thread, the external thread bolt connection of top cover is on the internal screw thread of sleeve.
In the utility model embodiment, the folder includes straight-bar 11 and curved rod 12, and end is fixed is integrated,
One end of the straight-bar is hinged with second connecting rod, and the other end and the fixed place of being integrated of curved rod are hinged on sleeve bottom end appearance
Face.
In the utility model embodiment, the curved rod is relative orientation, i.e. two curved rods are towards far from sleeve
Central axes curving.
In the utility model embodiment, it is fixed with a nut 13 in the middle part of the movable plate horizontal segment, and movable plate passes through
Nut is connect with screw rod, and the groove bar on the first connecting rod extends along first connecting rod length direction.
In the utility model embodiment, the screw rod is bolted with two bearings 14 in sleeve inner side, the bearing
Diameter is identical as sleeve diameter to limit left and right freedom degree of the screw rod in sleeve.
In the utility model embodiment, the sleeve upper end side wall central symmetry is installed with articulated slab 15, and every side is flat
Row is provided between two pieces of articulated slabs and two articulated slabs that there are gaps to be inserted into for first connecting rod, and through a pin through articulated slab and the
Hinge hole 16 on one connecting rod is hinged, and the sleeve lower end side and upper end side are installed with articulated slab with central symmetry, and every side is flat
Row is provided between two pieces of articulated slabs and two articulated slabs that there are gaps for straight-bar and the fixed place of being integrated of curved rod hingedly.
The working principle of the utility model embodiment: when rotating clockwise screw rod, movable plate will be driven and move upwards, and move
Movable plate both ends drive first connecting rod to make rotating motion, and first connecting rod drives second connecting rod rotation, and second connecting rod drives the straight of collet
Bar is rotated towards close to sleeve direction, and the curved rod of collet passes through the articulated slab hinging rotary with sleeve lower end in turn, realizes collet
Opening action；When rotary screw counterclockwise, movable plate will be driven and move downward, and mobile board ends drive first connecting rod, which is done, to be rotated
Movement, first connecting rod drive second connecting rod rotation, and second connecting rod drives the straight-bar of collet to rotate towards far from sleeve direction, collet
Curved rod and then by the articulated slab hinging rotary with sleeve lower end, realizes collet pinching action, after clamping first connecting rod with
Second connecting rod reaches the dead point of double rocking lever on the same line and between collet, stuck state occurs, realizes and clamps and improve
The reliability clamped.
The utility model is not limited to above-mentioned preferred forms, anyone can obtain under the enlightenment of the utility model
Other various forms of spiral clamping devices out.All equivalent changes done according to present utility model application the scope of the patents with repair
Decorations, should all belong to the covering scope of the utility model.
Claims (7)
1. a kind of spiral clamping device, it is characterised in that: include a sleeve, the sleeve upper end is bolted with a top cover, institute
It states in the middle part of top cover vertically through there is threaded hole, is provided with a screw rod above top cover and is worn by threaded hole to sleeve inner, the set
Cylinder upper end lateral wall central symmetry is hinged with first connecting rod, and groove bar, the first connecting rod lower end are offered on the first connecting rod
It is hinged with second connecting rod, the second connecting rod lower end is hinged with collet, and it is U-shaped to be bolted with one on the screw rod above the top cover
Movable plate, the movable plate is opening down, and both ends pass through groove bar of the pin on the first screw rod and connect with movable plate.
2. a kind of spiral clamping device according to claim 1, it is characterised in that: sleeve upper end inner wall is provided with
Internal screw thread, top cover peripheral part are provided with external screw thread, and the external thread bolt connection of top cover is on the internal screw thread of sleeve.
3. a kind of spiral clamping device according to claim 1, it is characterised in that: the collet includes straight-bar and arc
Shape bar, and end is fixed is integrated, one end of the straight-bar is hinged with second connecting rod, the other end and curved rod it is fixed be one
Sleeve bottom end outer surface is hinged at body.
4. a kind of spiral clamping device according to claim 3, it is characterised in that: the curved rod is relative orientation
, i.e. two curved rods are towards far from sleeve central axes curving.
5. a kind of spiral clamping device according to claim 1, it is characterised in that: solid in the middle part of the movable plate horizontal segment
It is connected with a nut, and movable plate is connect by nut with screw rod, the groove bar on the first connecting rod is along first connecting rod length direction
Extend.
6. a kind of spiral clamping device according to claim 1, it is characterised in that: the screw rod is in sleeve inner side
Two bearings are bolted with, the diameter of the bearing is identical as sleeve diameter to limit left and right freedom degree of the screw rod in sleeve.
7. a kind of spiral clamping device according to claim 1, it is characterised in that: the sleeve upper end side wall center pair
Title is installed with articulated slab, and every side is arranged in parallel between two pieces of articulated slabs and two articulated slabs that there are gaps to be inserted into for first connecting rod,
And, the sleeve lower end side and upper end side same central symmetry hinged through articulated slab and the hinge hole on first connecting rod through a pin
It is installed with articulated slab, it is fixed with curved rod for straight-bar that every side is arranged in parallel between two pieces of articulated slabs and two articulated slabs that there are gaps
It is hinged to be integrated place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822117794.6U CN209491676U (en) | 2018-12-17 | 2018-12-17 | A kind of spiral clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822117794.6U CN209491676U (en) | 2018-12-17 | 2018-12-17 | A kind of spiral clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209491676U true CN209491676U (en) | 2019-10-15 |
Family
ID=68153207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822117794.6U Active CN209491676U (en) | 2018-12-17 | 2018-12-17 | A kind of spiral clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209491676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397146A (en) * | 2018-12-17 | 2019-03-01 | 福州大学 | A kind of spiral clamping device and its working method |
-
2018
- 2018-12-17 CN CN201822117794.6U patent/CN209491676U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397146A (en) * | 2018-12-17 | 2019-03-01 | 福州大学 | A kind of spiral clamping device and its working method |
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