CN104385291A - Self-locking workpiece grabbing mechanism - Google Patents
Self-locking workpiece grabbing mechanism Download PDFInfo
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- CN104385291A CN104385291A CN201410637777.9A CN201410637777A CN104385291A CN 104385291 A CN104385291 A CN 104385291A CN 201410637777 A CN201410637777 A CN 201410637777A CN 104385291 A CN104385291 A CN 104385291A
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- self
- limiting plate
- grabbing mechanism
- workpiece grabbing
- control rods
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Abstract
The invention discloses a self-locking workpiece grabbing mechanism. The self-locking workpiece grabbing mechanism comprises a seat body, two clamping claws, two control rods, a limiting plate and a force applying rod, wherein the two clamping claws are hinged to the seat body through pin shafts; the two control rods are connected with the driving ends of the two clamping jaws respectively; one end of each of the two pin shafts is connected with the two clamping claws respectively; the seat body is provided with a strip-shaped hole along the horizontal direction; the other ends of the two pin shafts are provided with threads, and pass through the strip-shaped hole; the pin shafts are locked by penetrating a nut through the threaded ends of the pin shafts; the limiting plate is horizontally arranged below the strip-shaped hole; the lower surfaces of the two control rods and the upper surface of the limiting plate are collinear ; the force applying rod and the two control rods are hinged to one point; the control rods can be pressed against the limiting plate; the control rods are telescopic rods. According to the self-locking workpiece grabbing mechanism, a workpiece between the clamping claws is kept in a self-locking state without applying external force by using the characteristic that the two control rods are collinear, and special external force is not required for clamping, so that the cost is reduced, and the stability is higher than spring clamping.
Description
Technical field
The invention 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.
Summary of the invention
The invention provides a kind of self-locking workpiece grabbing mechanism, adopt 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 invention 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 invention 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 invention has the advantages that: 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 solution of the present invention is further illustrated:
Fig. 1 is the structural representation of self-locking workpiece grabbing mechanism embodiment of the present invention.
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 structure of the present invention, can also make some distortion and improvement, these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
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 |
|---|---|---|---|
| CN201410637777.9A CN104385291A (en) | 2014-11-13 | 2014-11-13 | Self-locking workpiece grabbing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637777.9A CN104385291A (en) | 2014-11-13 | 2014-11-13 | Self-locking workpiece grabbing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104385291A true CN104385291A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410637777.9A Pending CN104385291A (en) | 2014-11-13 | 2014-11-13 | Self-locking workpiece grabbing mechanism |
Country Status (1)
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| CN (1) | CN104385291A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479458A (en) * | 2016-02-29 | 2016-04-13 | 昆山—邦泰汽车零部件制造有限公司 | Mechanical arm capable of conveniently taking steel plate |
| CN107398920A (en) * | 2017-09-12 | 2017-11-28 | 北京京东尚科信息技术有限公司 | Clip claw mechanism and mechanical arm |
| CN108068103A (en) * | 2016-11-14 | 2018-05-25 | 中国科学院苏州纳米技术与纳米仿生研究所 | A kind of full Mechanical Driven and with the manipulator of anti-unexpected opener |
| CN109129409A (en) * | 2018-08-28 | 2019-01-04 | 苏州柯牛智能装备有限公司 | A kind of intelligence handling equipment |
| CN113895943A (en) * | 2020-06-22 | 2022-01-07 | 沈阳新松机器人自动化股份有限公司 | Universal automatic grabbing device of self-adaptation |
-
2014
- 2014-11-13 CN CN201410637777.9A patent/CN104385291A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479458A (en) * | 2016-02-29 | 2016-04-13 | 昆山—邦泰汽车零部件制造有限公司 | Mechanical arm capable of conveniently taking steel plate |
| CN108068103A (en) * | 2016-11-14 | 2018-05-25 | 中国科学院苏州纳米技术与纳米仿生研究所 | A kind of full Mechanical Driven and with the manipulator of anti-unexpected opener |
| CN108068103B (en) * | 2016-11-14 | 2024-05-31 | 中国科学院苏州纳米技术与纳米仿生研究所 | Mechanical arm driven by full machinery and provided with accidental opening prevention mechanism |
| CN107398920A (en) * | 2017-09-12 | 2017-11-28 | 北京京东尚科信息技术有限公司 | Clip claw mechanism and mechanical arm |
| CN107398920B (en) * | 2017-09-12 | 2024-04-05 | 北京京东乾石科技有限公司 | Clamping jaw mechanism and mechanical arm |
| CN109129409A (en) * | 2018-08-28 | 2019-01-04 | 苏州柯牛智能装备有限公司 | A kind of intelligence handling equipment |
| CN113895943A (en) * | 2020-06-22 | 2022-01-07 | 沈阳新松机器人自动化股份有限公司 | Universal automatic grabbing device of self-adaptation |
| CN113895943B (en) * | 2020-06-22 | 2023-02-28 | 沈阳新松机器人自动化股份有限公司 | Universal automatic grabbing device of self-adaptation |
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Legal Events
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |