CN204221791U - Self-locking workpiece grabbing mechanism - Google Patents
Self-locking workpiece grabbing mechanism Download PDFInfo
- Publication number
- CN204221791U CN204221791U CN201420675571.0U CN201420675571U CN204221791U CN 204221791 U CN204221791 U CN 204221791U CN 201420675571 U CN201420675571 U CN 201420675571U CN 204221791 U CN204221791 U CN 204221791U
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- CN
- China
- Prior art keywords
- limiting plate
- self
- bar hole
- control lever
- pedestal
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of self-locking workpiece grabbing mechanism, comprise pedestal, by two jaws of hinge on pedestal and with two control levers be connected with two jaw drive ends respectively, one end of two bearing pins is connected with two jaws respectively, also comprise limiting plate and force application rod, pedestal has bar hole in the horizontal direction, the other end of two bearing pins is provided with screw thread and passes bar hole, bearing pin is locked through the threaded one end of bearing pin by nut, limiting plate is horizontally set on the below of bar hole, the lower surface of two control levers and the upper surface conllinear of limiting plate, force application rod and two control levers are articulated with a bit, control lever can offset with limiting plate, control lever is expansion link.The utility model utilizes the characteristic of two control lever conllinear, under making the effect of workpiece between jaw or else time external force, is in the state of self-locking, does not need special external force clamping, reduce cost, relative to employing spring clamp, more stablize.
Description
Technical field
The utility model belongs to the technical field of clamping device.
Background technology
Workpiece grabbing mechanism not only needs workpiece grabbing, and needs to keep clamped condition, in case workpiece drops when not reaching requirement.
Workpiece grabbing mechanism is made now to keep the method for clamped condition to be external force clamping or spring clamp.Clamp as adopted external force and then need a lasting external force, special actuating unit certainly will be needed, which increase the cost of grasping mechanism.As adopted spring clamp, need the spring changing different length and coefficient of elasticity to adapt to the workpiece of difformity size, trouble very; And spring fatiguability, can not clamp well by workpiece.
Utility model content
The utility model provides a kind of self-locking workpiece grabbing mechanism, adopts external force clamping cost high to solve; Adopt the problem of spring clamp instability.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme: a kind of self-locking workpiece grabbing mechanism, comprise pedestal, by two jaws of hinge on pedestal and with two control levers be connected with two jaw drive ends respectively, one end of two bearing pins is connected with two jaws respectively, also comprise limiting plate and force application rod, pedestal has bar hole in the horizontal direction, the other end of two bearing pins is provided with screw thread and passes bar hole, bearing pin is locked through the threaded one end of bearing pin by nut, limiting plate is horizontally set on the below of bar hole, the lower surface of two control levers and the upper surface conllinear of limiting plate, force application rod and two control levers are articulated with a bit, control lever can offset with limiting plate, control lever is expansion link.
Principle of the present utility model is: pull force application rod, makes two control levers not conllinear, and the length because of two control lever conllinear is greater than control lever not collinear lengths.Two control levers not conllinear time, jaw bare terminal end can be in the state of opening.When workpiece enters between two jaws, oppositely promote force application rod, force application rod can drive two control levers conllinear gradually.Because of the lower surface of two control levers and the upper surface conllinear of limiting plate, when two control lever conllinear, force application rod just can not continue promotion, just the bare terminal end of jaw is just in clamped condition, two control lever conllinear, be equivalent to the position that two control levers are in dead point, two jaws are in the state of self-locking, when not applying external force, two jaws also can not unclamp.
Compared with prior art, the utility model has the advantage of: the characteristic 1, utilizing two control lever conllinear, under making the effect of workpiece between jaw or else time external force, be in the state of self-locking, do not need special external force clamping, reduce cost, relative to employing spring clamp, more stablize.2, control lever is expansion link, by adjustable telescopic rod regulate be in self-locking position time, the size that two jaws open, does not need to change different jaws and control lever according to the shape of workpiece and size, very convenient.
Further, the quantity of limiting plate is two, and two limiting plates lay respectively at the below of two control levers, can carry out spacing to two control levers simultaneously.
Further, jaw, bar hole, control lever and bearing pin are symmetrical arranged along force application rod, and because large multi-work piece is axial symmetrical work pieces, this structure also adopts and is symmetrical arranged.
Further, the bare terminal end of described jaw is hook-shaped, can prevent workpiece from dropping out.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, technical solutions of the utility model are further illustrated:
Fig. 1 is the structural representation of the utility model self-locking workpiece grabbing mechanism embodiment.
Detailed description of the invention
Reference numeral in Figure of description comprises: pedestal 1, jaw 2, control lever 3, limiting plate 4, force application rod 5, bar hole 6, bearing pin 7.
A kind of self-locking workpiece grabbing mechanism in the present embodiment, comprise pedestal 1, two jaws 2 be hinged on by bearing pin 7 on pedestal 1, with two control lever 3, two limiting plate 4 and the force application rods 5 be connected with two jaw 2 drive ends respectively, the bare terminal end of jaw 2 is hook-shaped.The front end of two bearing pins 7 is connected with two jaws 2 respectively, and pedestal 1 has bar hole 6 in the horizontal direction, and the rear end of two bearing pins 7 is provided with screw thread and through bar hole 6, bearing pin 7 is locked through the threaded one end of bearing pin 7 by nut.Limiting plate 4 is horizontally set on the below of bar hole 6, the lower surface of two control levers 3 and the upper surface conllinear of limiting plate 4, and force application rod 5 and two control levers 3 are articulated with a bit, and two control levers 3 can offset with two limiting plates 4 respectively.Control lever 3 is expansion link, and control lever 3 is made up of sleeve and screw rod, and turnbarrel can elongate or shorten control lever 3.Above-mentioned jaw 2, bar hole 6, limiting plate 4, control lever 3 and bearing pin 7 are symmetrical arranged along force application rod 5
Before the use, need first to regulate bearing pin 7, when making two control lever 3 conllinear, the distance of two jaw 2 bare terminal ends and work piece match to be held.As shown in Figure 1, upwards pull force application rod 5, two control levers 3 can be in the state of gathering, and the bare terminal end of jaw 2 can open.Downward promotion force application rod 5, two control lever 3 can open gradually, and when two control lever 3 conllinear, two control levers 3 can prop up by two limiting plates 4, make it not move downward.Because of two control lever 3 conllinear, be equivalent to the position that two control levers 3 are in dead point, two jaws 2 are in the state of self-locking, and when not applying external force or external force is less, two jaws 2 can keep this state.
For a person skilled in the art; under the prerequisite not departing from the utility model structure; can also make some distortion and improvement, these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
Claims (4)
1. a self-locking workpiece grabbing mechanism, comprise pedestal, by two jaws of hinge on pedestal and with two control levers be connected with two jaw drive ends respectively, one end of two bearing pins is connected with two jaws respectively, it is characterized in that: also comprise limiting plate and force application rod, pedestal has bar hole in the horizontal direction, the other end of two bearing pins is provided with screw thread and passes bar hole, bearing pin is locked through the threaded one end of bearing pin by nut, limiting plate is horizontally set on the below of bar hole, the lower surface of two control levers and the upper surface conllinear of limiting plate, force application rod and two control levers are articulated with a bit, control lever can offset with limiting plate, control lever is expansion link.
2. self-locking workpiece grabbing mechanism as claimed in claim 1, is characterized in that: the quantity of limiting plate is two, and two limiting plates lay respectively at the below of two control levers.
3. self-locking workpiece grabbing mechanism as claimed in claim 1, is characterized in that: jaw, bar hole, control lever and bearing pin are symmetrical arranged along force application rod.
4. self-locking workpiece grabbing mechanism as claimed in claim 1, is characterized in that: the bare terminal end of described jaw is hook-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675571.0U CN204221791U (en) | 2014-11-13 | 2014-11-13 | Self-locking workpiece grabbing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675571.0U CN204221791U (en) | 2014-11-13 | 2014-11-13 | Self-locking workpiece grabbing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204221791U true CN204221791U (en) | 2015-03-25 |
Family
ID=52919930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420675571.0U Expired - Fee Related CN204221791U (en) | 2014-11-13 | 2014-11-13 | Self-locking workpiece grabbing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204221791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498577A (en) * | 2017-09-22 | 2017-12-22 | 镇江江润电气设备有限公司 | A kind of cable capture apparatus |
-
2014
- 2014-11-13 CN CN201420675571.0U patent/CN204221791U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498577A (en) * | 2017-09-22 | 2017-12-22 | 镇江江润电气设备有限公司 | A kind of cable capture apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20151113 |
|
| EXPY | Termination of patent right or utility model |