CN218052288U

CN218052288U - Rotary clamping mechanism

Info

Publication number: CN218052288U
Application number: CN202222239437.3U
Authority: CN
Inventors: 张云芯; 蒋楚辉
Original assignee: Dongguan Mingji Automation Technology Co ltd
Current assignee: Dongguan Mingji Automation Technology Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-12-16
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses a rotary clamping mechanism, which comprises a frame, rotary driving mechanism, the rolling disc, the elastic component, locating part and clamping jaw, rotary driving mechanism installs in the frame, rotary driving mechanism's output has rotatable driving-disc, the rolling disc is rotationally installed on the driving-disc, the elastic component is located between driving-disc and the rolling disc, the locating part is installed in the frame and is used for allowing the rolling disc to rotate along the first direction, be equipped with the guiding hole on the rolling disc, the guiding hole is located with the centre gripping or unclamp to the clamping jaw with sliding, borrow the rotation of driving disc along the first direction and make the rolling disc rotate and link the smooth clamping jaw of locating the guiding hole of locating along the first direction under the traction of elastic component and the permission of locating part and be in unclamping the form, borrow the clamping jaw that the rotation of driving disc along the second direction made the rolling disc stop and link the smooth locating the guiding hole under the spacing of locating part and be in the clamping form. The utility model discloses a rotary clamping mechanism has the advantage that degree of automation is high and with low costs.

Description

Rotary clamping mechanism

Technical Field

The utility model relates to a machine-building equipment field especially relates to a rotary clamping mechanism.

Background

The workpiece is required to be clamped in the production line frequently, the existing jig is clamped by the aid of the manual clamping block, and the jig is complex in positioning mode structure, low in automation degree, and high in waste of labor cost and time cost, so that the existing production requirement cannot be met.

In order to solve the above problems, it is necessary to provide a rotary clamping mechanism.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a degree of automation is high and with low costs rotary clamping mechanism.

In order to achieve the above object, the utility model provides a rotary clamping mechanism includes frame, rotary driving mechanism, rolling disc, elastic component, locating part and clamping jaw, rotary driving mechanism install in the frame, rotary driving mechanism's output has rotatable driving-disc, the rolling disc rotationally install in on the driving-disc, the elastic component is located the driving-disc with between the rolling disc, the locating part install in the frame and be used for allowing the rolling disc rotates along the first direction, be equipped with the guiding hole on the rolling disc, the clamping jaw is located with the centre gripping or unclamp slidingly the guiding hole, borrow by the driving disc is followed the rotation of first direction makes the rolling disc is in under the traction of elastic component and along the permission of locating part the first direction rotates and interlock cunning locates the clamping jaw of guiding hole is in the form of unclamping, borrow the rotation of driving disc along the second direction makes the rolling disc stop and interlock cunning under the spacing of locating part is located the guiding hole the clamping jaw is in the clamp form, the first direction with the second direction is opposite.

Preferably, the rotation driving mechanism further includes a rotation driving device and a transmission belt, the rotation driving device is mounted on the frame, the transmission belt is disposed between the rotation driving device and the driving disc, and the driving disc is driven by the rotation driving device to rotate.

Preferably, the rotating disc is provided with a first tooth along a circumferential direction thereof, the limiting member has a limiting latch engaged with the first tooth, and the limiting latch is engaged with the first tooth to allow the rotating disc to rotate in the first direction and limit the rotating disc to rotate in the second direction.

Specifically, the limiting part further comprises a torsion spring, the torsion spring provides an elastic force, and the elastic force enables the limiting latch to have a tendency of being engaged with the first tooth.

Preferably, the guide hole comprises a clamping channel and a loosening channel, the clamping channel is communicated with the loosening channel, the clamping jaws are close to each other when the clamping jaws are located in the clamping channel, and the clamping jaws are separated from each other when the clamping jaws are located in the loosening channel.

Specifically, the number of the guide holes is at least two, the number of the clamping jaws corresponds to that of the guide holes, the guide holes are arranged at intervals along the circumferential direction of the rotating disc, and the clamping jaws correspond to the guide holes one to one.

Preferably, the clamping jaw includes a sliding mounting seat, the sliding mounting seat is mounted on the driving disc, and the clamping jaw is slidably arranged on the sliding mounting seat along the radial direction of the sliding mounting seat.

Specifically, the sliding installation seat is provided with a sliding hole corresponding to the clamping jaw, and the sliding installation seat is slidably arranged in the sliding hole.

Specifically, the clamping jaw includes clamping jaw body and traveller, the clamping jaw body cunning is located the slide opening, the traveller by the clamping jaw body outwards extends and forms, the traveller cunning is located the guiding hole.

Specifically, the included angle between the jaw bodies is 45 degrees.

Compared with the prior art, the utility model discloses a rotary clamping mechanism is through combining rotary driving mechanism, the rolling disc, the elastic component, locating part and clamping jaw etc. together, rotary driving mechanism installs in the frame, rotary driving mechanism's output has rotatable driving-disc, the rolling disc is rotationally installed on the driving-disc, the elastic component is located between driving-disc and the rolling disc, the locating part is installed in the frame and is used for allowing the rolling disc to rotate along first direction, be equipped with the guiding hole on the rolling disc, the clamping jaw is slided and is located the clamping jaw of guiding hole and is in the form of loosening with the slip under the traction of elastic component and the permission of locating part by the rotation of driving disc along first direction, in other words, when the driving disc rotates along first direction, the elastic component can drag the rolling disc and rotate along first direction in step, the clamping jaw that the guiding hole was located to the clamping hole and the link and loosen under the permission of locating part, in other words, the rotation of driving disc makes the rolling disc stop and slide the clamping jaw that locates the clamping jaw of guiding hole under the spacing of guiding hole and is in other practical use, thereby the clamping jaw is realized the clamping jaw and is the clamping jaw that the rotation of the clamping jaw is the rotation of the clamping jaw along the second direction, thereby the clamping jaw and the clamping jaw is the rotation of the clamping jaw and is to the clamping jaw and is limited to the common rotation of the clamping jaw.

Drawings

Fig. 1 is a perspective view of the rotary clamping mechanism of the present invention.

Fig. 2 is a perspective view of the rotary clamping mechanism of the present invention at another angle.

Fig. 3 is an internal perspective view of the rotary clamping mechanism of the present invention.

Fig. 4 is an internal perspective view of the rotary clamping mechanism of the present invention.

Fig. 5 is an internal perspective view of the rotary clamping mechanism of the present invention with the clamping jaws in a released state.

Fig. 6 is an internal perspective view of the rotary clamping mechanism and the clamping jaw of the present invention in a clamped state.

Detailed Description

Referring to fig. 1 to 6, a specific structure of the rotary clamping mechanism 100 of the present invention is shown, the rotary clamping mechanism 100 of the present invention includes a frame 1, a rotary driving mechanism 2, a rotary disc 3, an elastic member 4, a limiting member 5 and a clamping jaw 6, the rotary driving mechanism 2 is mounted on the frame 1, an output end of the rotary driving mechanism 2 has a rotatable driving disc 21, the driving disc 21 can rotate along a first direction and a second direction, in this embodiment, the first direction is a counterclockwise direction (as indicated by an arrow a in fig. 6), the second direction is a clockwise direction (as indicated by an arrow a in fig. 6), the rotary disc 3 is rotatably mounted on the driving disc 21, the elastic member 4 is disposed between the driving disc 21 and the rotary disc 3, the elastic member 4 can be a spring or a torsion spring, the limiting member 5 is mounted on the frame 1, the limiting member 5 is used for allowing the rotary disc 3 to rotate along the first direction and limiting the rotary disc 3 to rotate along the second direction, the rotating disc 3 is provided with a guiding hole 31, the clamping jaw 6 is slidably disposed in the guiding hole 31 for clamping or unclamping, that is, the clamping jaw 6 slides by the cooperation between the clamping jaw 6 and the guiding hole 31, the rotating disc 3 rotates in a first direction under the traction of the elastic element 4 and the permission of the limiting element 5 by the rotation of the driving disc 21 in the first direction and the clamping jaw 6 slidably disposed in the guiding hole 31 is in an unclamped state (as shown in fig. 5), in other words, when the driving disc 21 rotates in the first direction, the elastic element 4 will drag the rotating disc 3 to rotate synchronously in the first direction, the clamping jaw 6 slides to the end of the guiding hole 31 under the guidance of the guiding hole 31 and drives the clamping jaw 6 to unclamp, the rotation of the driving disc 21 in the second direction makes the rotating disc 3 stop under the limitation of the limiting element 5 and the clamping jaw 6 slidably disposed in the guiding hole 31 is interlocked with the rotation of the clamping jaw 6 In a clamped state (as shown in fig. 6), the first direction is opposite to the second direction, in other words, when the driving disc 21 rotates along the second direction, the rotating disc 3 overcomes the elastic force of the elastic element 4 due to the limitation of the limiting element 5 and stops rotating, that is, the driving disc 21 rotates along the second direction relative to the rotating disc 3, and the clamping jaw 6 slides to the other end position of the guiding hole 31 under the guidance of the guiding hole 31 and moves the clamping jaw 6 to clamp, thereby achieving the positioning of the workpiece. More specifically, the following:

referring to fig. 1 to 6, the rotation driving mechanism 2 further includes a rotation driving device 22 and a transmission belt 23, the rotation driving device 22 is mounted on the frame 1, the transmission belt 23 is disposed between the rotation driving device 22 and the driving disc 21, and the driving disc 21 is driven by the rotation driving device 22 to rotate. The rotating disc 3 is provided with a first tooth 32 along the circumferential direction thereof, and the limiting member 5 has a limiting latch 51 engaged with the first tooth 32, so as to allow the rotating disc 3 to rotate in the first direction and limit the rotating disc 3 to rotate in the second direction by means of the engagement of the limiting latch 51 and the first tooth 32. Specifically, the limiting member 5 further includes a torsion spring 52, the torsion spring 52 provides an elastic force, the elastic force makes the limiting latch 51 have a tendency to engage with the first tooth 32, and when the driving disc 21 rotates in the first direction, the rotating disc 3 rotates in the first direction against the elastic force of the torsion spring 52.

Referring to fig. 5 to 6, the guide hole 31 includes a clamping passage 311 and a loosening passage 312, the clamping passage 311 is communicated with the loosening passage 312, the clamping jaws 6 are switched between the clamping passage 311 and the loosening passage 312, when the clamping jaws 6 are located in the clamping passage 311, the clamping jaws 6 are close to each other, and when the clamping jaws 6 are located in the loosening passage 312, the clamping jaws 6 are separated from each other. The number of the guide holes 31 is at least two, the number of the clamping jaws 6 corresponds to the number of the guide holes 31, the guide holes 31 are arranged at intervals along the circumferential direction of the rotating disc 3, and the clamping jaws 6 correspond to the guide holes 31 one by one. In the present embodiment, the number of the clamping jaws 6 is four, and the number of the guide holes 31 is four, but the present invention is not limited thereto.

Referring to fig. 5 to 6, the clamping jaw 6 includes a sliding mounting seat 61, the sliding mounting seat 61 is mounted on the driving disc 21, and the clamping jaw 6 is slidably disposed on the sliding mounting seat 61 along a radial direction of the sliding mounting seat 61. Specifically, the sliding mounting seat 61 is provided with a sliding hole 611 corresponding to the clamping jaw 6, and the sliding mounting seat 61 is slidably provided in the sliding hole 611. The clamping jaw 6 comprises a clamping jaw body 62 and a sliding column 63, wherein the clamping jaw body 62 is arranged in the sliding hole 611 in a sliding mode, the sliding column 63 is formed by extending the clamping jaw body 62 outwards, and the sliding column 63 is arranged in the guide hole 31 in a sliding mode and is switched between the feeding channel and the loosening channel 312. Preferably, the included angle between the jaw bodies 62 is 45 degrees, but is not limited thereto, i.e., one jaw body 62 is disposed every 45 degrees.

In summary, please refer to fig. 1 to fig. 6, a detailed description is made of the working process of the rotary clamping mechanism 100 of the present invention:

the driving disc 21 is driven by the rotary driving device 22 to rotate in the first direction, the rotation of the driving disc 21 in the first direction causes the rotating disc 3 to rotate in the first direction under the traction of the elastic member 4 and the permission of the limiting member 5, the sliding columns 63 of the clamping jaws 6 slide from the clamping channels 311 to the releasing channels 312 in the guide holes 31, all the clamping jaws 6 are in a releasing state, and with the continuous rotation of the driving disc 21 in the first direction, the rotating disc 3 also continuously rotates in the first direction, and the clamping jaws 6 are always in the releasing state.

When a workpiece needs to be clamped, the driving disc 21 is driven by the rotary driving device 22 to rotate in the second direction, the rotating disc 3 overcomes the elastic force of the elastic element 4 due to the limiting action of the limiting element 5 and stops rotating, that is, the driving disc 21 rotates relative to the rotating disc 3 in the second direction, the sliding columns 63 of the clamping jaws 6 slide in the guide holes 31 from the loosening channels 312 to the clamping channels 311, and all the clamping jaws 6 are in a clamping state, so that the workpiece is clamped quickly. When the workpiece needs to be loosened again, the rotary driving device 22 drives the driving disc 21 to rotate in the first direction again.

By combining the rotary driving mechanism 2, the rotary disk 3, the elastic member 4, the limiting member 5 and the clamping jaws 6 together, the rotary driving mechanism 2 is mounted on the frame 1, the output end of the rotary driving mechanism 2 is provided with the rotatable driving disk 21, the rotary disk 3 is rotatably mounted on the driving disk 21, the elastic member 4 is arranged between the driving disk 21 and the rotary disk 3, the limiting member 5 is mounted on the frame 1 and is used for allowing the rotary disk 3 to rotate along a first direction, the rotary disk 3 is provided with the guiding hole 31, the clamping jaws 6 are slidably arranged in the guiding hole 31 for clamping or releasing, by means of the rotation of the driving disk 21 along the first direction, the rotary disk 3 rotates along the first direction under the traction of the elastic member 4 and the permission of the limiting member 5 and the clamping jaws 6 slidably arranged in the guiding hole 31 are in a release state, in other words, when the driving disk 21 rotates along the first direction, the elastic element 4 will drag the rotating disc 3 to rotate synchronously along the first direction, the clamping jaws 6 slide to the end of the guiding hole 31 under the guiding of the guiding hole 31 and drive the clamping jaws 6 to release, the rotation of the driving disc 21 along the second direction makes the rotating disc 3 stop under the limiting of the limiting element 5 and the clamping jaws 6 slidably arranged in the guiding hole 31 are in a clamping state, the first direction is opposite to the second direction, in other words, when the driving disc 21 rotates along the second direction, the rotating disk 3 overcomes the elastic force of the elastic member 4 and stops rotating due to the restriction of the stopper 5, i.e. the driving disc 21 rotates in the second direction relative to the rotating disc 3, the clamping jaws 6 slide under the guide of the guide holes 31 to the other end positions of the guide holes 31 and the clamping jaws 6 are connected for clamping, thereby realize the location to the work piece, the utility model discloses a rotary clamping mechanism 100 only needs the rotation direction of control driving-disc 21 can realize that clamping jaw 6's clamp is tight or loosen jointly.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and the same changes and modifications as the claims of the present invention are also included.

Claims

1. A rotary clamping mechanism is characterized by comprising a rack, a rotary driving mechanism, a rotary disc, an elastic piece, a limiting piece and clamping jaws, wherein the rotary driving mechanism is installed on the rack, a rotatable driving disc is arranged at the output end of the rotary driving mechanism, the rotary disc is rotatably installed on the driving disc, the elastic piece is arranged between the driving disc and the rotary disc, the limiting piece is installed on the rack and used for allowing the rotary disc to rotate along a first direction, a guide hole is formed in the rotary disc, the clamping jaws are slidably arranged in the guide hole in a clamping or loosening mode, the rotary disc is driven by the elastic piece and allowed by the limiting piece to rotate along the first direction and is slidably arranged in the clamping jaws of the guide hole in a loosening mode, the rotary disc is stopped under the limiting of the limiting piece and is slidably arranged in the clamping mode by the rotation of the driving disc along a second direction, and the first direction is opposite to the second direction.

2. The rotary clamping mechanism according to claim 1, wherein said rotary drive mechanism further comprises a rotary drive device mounted to said frame and a drive belt disposed between said rotary drive device and said drive disk, said drive disk being driven by said rotary drive device to rotate.

3. The rotary clamping mechanism according to claim 1, wherein said rotatable disk is provided with first teeth along a circumferential direction thereof, and said retainer has a retainer pawl engaging with said first teeth, whereby engagement of said retainer pawl and said first teeth allows rotation of said rotatable disk in said first direction and restricts rotation of said rotatable disk in said second direction.

4. The rotary clamping mechanism according to claim 3, wherein said retaining member further comprises a torsion spring, said torsion spring providing a spring force that causes said retaining latch to constantly have a tendency to engage said first tooth.

5. The rotary clamping mechanism according to claim 1, wherein said guide bore includes a clamping channel and a release channel, said clamping channel and said release channel being in communication, said jaws being movable toward one another when in said clamping channel and away from one another when in said release channel.

6. The rotary clamping mechanism according to claim 5, wherein said guide holes are provided in at least two, the number of said clamping jaws corresponds to the number of said guide holes, said guide holes are provided at intervals in the circumferential direction of said rotary disk, and said clamping jaws correspond to said guide holes one to one.

7. The rotary clamping mechanism as claimed in claim 1, wherein said clamping jaws include slide mounts mounted to said drive plate, said clamping jaws being slidably disposed on said slide mounts in a radial direction of said slide mounts.

8. The rotary clamping mechanism as claimed in claim 7, wherein said sliding mounting seat has a sliding hole corresponding to said clamping jaw, and said sliding mounting seat is slidably disposed in said sliding hole.

9. The rotary clamping mechanism as claimed in claim 8, wherein said clamping jaw includes a clamping jaw body and a sliding column, said clamping jaw body is slidably disposed in said sliding hole, said sliding column is formed by extending said clamping jaw body outward, and said sliding column is slidably disposed in said guiding hole.

10. The rotary clamping mechanism of claim 9 wherein said jaw bodies are angled at 45 degrees.