CN208163447U - It is a kind of can adjust automatically clamped position clamp system - Google Patents
It is a kind of can adjust automatically clamped position clamp system Download PDFInfo
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- CN208163447U CN208163447U CN201820344045.4U CN201820344045U CN208163447U CN 208163447 U CN208163447 U CN 208163447U CN 201820344045 U CN201820344045 U CN 201820344045U CN 208163447 U CN208163447 U CN 208163447U
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- tightly
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- feed screw
- screw nut
- claw
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Abstract
The utility model disclose it is a kind of can adjust automatically clamped position clamp system, holding claw, feed screw nut, the pawl, compressed spring being oppositely arranged in positive anti-leading screw including positive anti-leading screw, two, positive anti-leading screw and feed screw nut are realized by trapezoid spiral line to be sequentially connected, the outer circle and holding claw inner hole of feed screw nut pass through ratchet and connect, pawl is fixed on feed screw nut by pin shaft, and compressed spring both ends are separately fixed on feed screw nut and pawl.The utility model makes the mechanism that can determine to treat the clamped condition for holding object tightly automatically during clamping movement by angle by ratchet and compressed spring elastic force, advance is automatically stopped when holding claw clamping holding object rear claw tightly, it avoids holding claw tightly and interaction force between object is excessive to cause composition deformation to be held tightly or damage wait holding tightly, also can avoid holding claw movement stopping not in place tightly and cause the case where cannot clamping.
Description
Technical field
The utility model relates to synchronous clamping mechanism technical fields, and in particular to it is a kind of can adjust automatically clamped position folder
Tight mechanism.
Background technique
Refer to that lead screw both ends screw thread is respectively left hand thread and dextrorotation spiral shell by the way of the clamping of positive anti-leading screw implementation mechanism
Line can drive feed screw nut realization (relatively close or opposite along the relative motion of lead screw axis direction when the rotation of positive anti-leading screw
Separate), and then realize the movement for clamping (or release).
As shown in Figs. 1-2, it is existing using positive anti-leading screw realize clamp with isolated mechanism, usually directly will hold tightly pawl and
Lead screw is connected by helix or lead screw connects feed screw nut, and feed screw nut and holding pawl are directly connected.Silk under the structure
Thick stick rotates under motor driven, realizes the clamping and separation of clamp system.Whether this mode realizes pair claw
The pinching action for holding object tightly generally passes through two methods control：Method passes through strain first is that mount foil gauge on object to be clamped
The holding state of claw is held in the variation judgement of on piece power tightly；Method second is that by calculate preset motor rotating cycle (or
Rotate angle) whether the linear movement distance that calculates claw, moved in place with the rotation of motor control claw.Both methods is all
There are some disadvantages, first is that increasing electrical component and electrical control, cause product complicated, increased costs, and due to electrical
The increase of route will cause certain special occasions and use upper inconvenience；Second is that two sides claw motion synchronicity is not easy to guarantee,
It is easy to cause side claw to have moved to position and even has been subjected to clamping and feelings that other side claw is not contacted with object to be held tightly also
Condition.
Utility model content
The purpose of this utility model is to be directed to technological deficiency existing in the prior art, and providing one kind can adjust automatically folder
The clamp system of tight position.
It is for technical solution used by realization the purpose of this utility model：
It is a kind of can adjust automatically clamped position clamp system, including positive anti-leading screw, two be oppositely arranged on positive anti-leading screw
On holding claw, feed screw nut, pawl, compressed spring, positive anti-leading screw and feed screw nut are realized by trapezoid spiral line and are driven
Connection, the outer circle and holding claw inner hole of feed screw nut are connected by ratchet, and pawl is fixed on feed screw nut by pin shaft, is pressed
Contracting both ends of the spring is separately fixed on feed screw nut and pawl.
The holding claw includes arc-shaped holding face.
The utility model is cooperated by the inner hole helix of feed screw nut and the helix on lead screw surface, positive anti-leading screw rotation
When drive feed screw nut to move forward or back, feed screw nut and holding tightly is connected using ratchet between claw, is passed through and is rationally designed ratchet
Angle and compressed spring elastic force make the mechanism that can determine to treat the clamped condition for holding object tightly automatically during clamping movement, when
It holds claw tightly and clamps and hold object rear claw tightly and be automatically stopped advances, avoid holding claw and excessive wait hold interaction force between object tightly
Composition deformation to be held tightly or damage are caused, holding claw movement stopping not in place also being can avoid and causes the case where cannot clamping.
Detailed description of the invention
Fig. 1 is the schematic front view of clamp system in the prior art；
Fig. 2 is the diagrammatic cross-section of the line A-A of Fig. 1；
Fig. 3 be the utility model can adjust automatically clamped position clamp system schematic front view；
Fig. 4 is the diagrammatic cross-section of the line A-A of Fig. 3；
Fig. 5 be the utility model can adjust automatically clamped position clamp system schematic side view.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description is only used to explain the utility model, is not used to limit the utility model.
Referring to shown in Fig. 3-5, it is a kind of can adjust automatically clamped position clamp system, including：
Holding claw 2, feed screw nut 3, the pawl 4, compressed spring 5 that positive anti-leading screw 1, two is oppositely arranged, positive anti-leading screw
It is realized and is sequentially connected by trapezoid spiral line with feed screw nut, connected between the outer circle and holding claw inner hole of feed screw nut by ratchet
It connects, pawl is fixed on feed screw nut by pin shaft, and compressed spring both ends are separately fixed on feed screw nut and pawl, the mechanism
For two outer dimensions it is identical hold tightly claw is realized under the induced effect of forward lead screw treat holding object clamping and
It unclamps.
Wherein, the holding claw includes arc-shaped holding face.
In terms of Fig. 4, hold lead screw when claw is held tightly tightly and feed screw nut driven to rotate counterclockwise, hold tightly claw in compressed spring and
The Forward along lead screw axis direction is realized under the action of pawl, is contacted after holding object tightly when holding claw tightly, due to holding claw tightly and embracing
There are interaction forces between tight object holds claw tightly and stops movement, lead screw when the active force is greater than active force between pawl ratchet
Nut can continue that lead screw is followed to rotate.
The utility model calculates the elastic force of the angle and compressed spring that determine ratchet by reasonably design, so that it may have
The clamping for holding object tightly is treated in the realization of effect, and can effectively prevent claw and contact the lead screw after holding object tightly and continue to rotate to cause claw pair
The case where holding object tightly and cross clamping, or even causing the deformation of object to be held tightly.On the other hand, since the cohesion device is the phase for relying on power
The control to jaw position is held tightly is realized in interaction, therefore two sides are held tightly with the symmetry of claw initial position in positive anti-leading screw
It is not strict with, two holding claws can successively contact object to be held tightly and realize that holding is acted without influencing clamping effect, right
The helix symmetry requirement of positive anti-leading screw reduces, and difficulty of processing reduces.
Referring to shown in Fig. 3-5, the utility model is the control realized by the interaction of power to jaw position is held tightly, because
This symmetry for holding claw initial position in positive anti-leading screw tightly to two sides does not require, and two holding claws can be contacted successively
Object to be held tightly realizes holding movement without influencing clamping effect.Claw movement rear (contacting object to be held tightly) in place is held tightly, even if silk
Thick stick continues to rotate holding claw and will not continue to move to, and the tension for avoiding folder is treated holding object and damaged.
When work, the positive anti-leading screw of motor driven is rotated, under the action of lead screw helix and feed screw nut helix,
Feed screw nut is moved forward along lead screw axis.Under the action of the upper ratchet of feed screw nut, pawl, the holding claw edge of two sides
Lead screw axis direction advances, until contacting after holding object tightly, ratchet skids, and feed screw nut continuation is rotated with lead screw, holds claw tightly
Stop the mobile clamping for realizing and treating and holding object tightly.
When release, motor driven screw rod is rotated backward, under the action of lead screw helix and feed screw nut helix, lead screw
Nut is moved backward along lead screw axis, and under the action of ratchet, detent mechanism, holding claw is moved together with feed screw nut,
The release to object is held tightly is realized, until lead screw stops operating.
The clamp system or the position precision of clamping, two sides are clamped same that conventionally employed positive anti-leading screw is clamped
Step property machining accuracy of less demanding or needing to improve positive anti-leading screw guarantees the synchronism clamped, but even if improves silk
The machining accuracy of thick stick, still more troublesome when being installed and used as the synchronization mechanism more demanding to synchronism, synchronous symmetry tune
Whole difficulty.
The mechanism of the utility model realizes the adjust automatically and control to clamped position with pure mechanic structure, can be by changing
The elastic force for becoming ratchet angle and compressed spring changes enclasping force, and structure is simple, easy for installation, and functional reliability is high.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, without departing from the principle of this utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (2)
1. one kind can adjust automatically clamped position clamp system, which is characterized in that be oppositely arranged on including positive anti-leading screw, two
Holding claw, feed screw nut, pawl, compressed spring in positive anti-leading screw, positive anti-leading screw and feed screw nut pass through trapezoid spiral line
Realize transmission connection, the outer circle and holding claw inner hole of feed screw nut are connected by ratchet, and pawl is fixed on lead screw by pin shaft
On nut, compressed spring both ends are separately fixed on feed screw nut and pawl.
2. it is according to claim 1 can adjust automatically clamped position clamp system, which is characterized in that the holding claw
Including arc-shaped holding face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820344045.4U CN208163447U (en) | 2018-03-14 | 2018-03-14 | It is a kind of can adjust automatically clamped position clamp system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820344045.4U CN208163447U (en) | 2018-03-14 | 2018-03-14 | It is a kind of can adjust automatically clamped position clamp system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208163447U true CN208163447U (en) | 2018-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820344045.4U Active CN208163447U (en) | 2018-03-14 | 2018-03-14 | It is a kind of can adjust automatically clamped position clamp system |
Country Status (1)
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|---|---|
| CN (1) | CN208163447U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109526671A (en) * | 2018-12-24 | 2019-03-29 | 广州供电局有限公司 | Trees swing to control device and its hold-fast body |
| CN110947961A (en) * | 2019-11-15 | 2020-04-03 | 北京航星机器制造有限公司 | Automatic hoop mechanism of laser selective melting additive manufacturing forming cylinder body |
-
2018
- 2018-03-14 CN CN201820344045.4U patent/CN208163447U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109526671A (en) * | 2018-12-24 | 2019-03-29 | 广州供电局有限公司 | Trees swing to control device and its hold-fast body |
| CN110947961A (en) * | 2019-11-15 | 2020-04-03 | 北京航星机器制造有限公司 | Automatic hoop mechanism of laser selective melting additive manufacturing forming cylinder body |
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