CN216781051U

CN216781051U - Clamping mechanism

Info

Publication number: CN216781051U
Application number: CN202122234042.XU
Authority: CN
Inventors: 黄荣舜; 刘新兵; 刘军兵; 谢涛; 郭建; 姜表菊
Original assignee: Hongfujin Precision Electronics Chengdu Co Ltd
Current assignee: Hongfujin Precision Electronics Chengdu Co Ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-06-21
Anticipated expiration: 2031-09-15

Abstract

A clamping mechanism comprises a driver, a connecting assembly and a clamping assembly. The connecting assembly comprises a transmission rod, a connecting piece and a gear assembly, one end of the transmission rod is connected with a driver, the driver is used for driving the transmission rod to move and/or rotate, the other end of the transmission rod is rotationally connected with the connecting piece, and the gear assembly is arranged on the transmission rod. The clamping assembly comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are arranged in parallel and detachably connected to the connecting piece, and the gear assembly is in transmission connection with the first clamping piece, the second clamping piece and the transmission rod. Above-mentioned fixture utilizes and is connected to first holder, second holder in same driver, reaches the purpose of multiple spot position centre gripping to through setting up the gear assembly, utilize transfer line and driver can drive first holder, second holder and rotate, make the motion mode of holder diversified, satisfy multiple complicated location demand.

Description

Clamping mechanism

Technical Field

The application relates to the field of mechanical equipment, in particular to a clamping mechanism.

Background

In the metal casing cutting processing procedure of 3C electronic product such as panel computer, all-in-one, notebook computer, need use quick clamping tool to improve production efficiency, for the stability that improves the product clamping, the tool needs to realize the multiple spot in narrow and small space and presss from both sides tightly, and adopts the centre gripping that a cylinder can only realize a position usually, can't realize two and more centre gripping positions, and the motion mode of holder is single, is difficult to satisfy multiple complicated location demand.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, the application provides a fixture, utilize and be connected to first holder, second holder in same driver, reach the purpose of multiple spot position centre gripping to through setting up the gear assembly, utilize transfer line and driver can drive first holder, second holder and rotate, make the motion mode of holder diversified, satisfy multiple complicated location demand.

The clamping mechanism comprises a driver, a connecting assembly and a clamping assembly, wherein the connecting assembly is in transmission connection with the driver and the clamping assembly. Coupling assembling includes transfer line, connecting piece and gear assembly, the one end of transfer line is connected the driver, the driver is used for driving the transfer line removes and/or rotates, the other end of transfer line rotates and connects the connecting piece, the gear assembly install in on the transfer line. The clamping assembly comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are arranged side by side and detachably connected to the connecting piece, and the gear assembly is in transmission connection with the first clamping piece, the second clamping piece and the transmission rod.

In some embodiments, the gear assembly includes a driving wheel, a first driven wheel, and a second driven wheel, the driving wheel is sleeved on the transmission rod, the first driven wheel is sleeved on the first clamping member, the second driven wheel is sleeved on the second clamping member, and the first driven wheel and the second driven wheel are respectively engaged with the driving wheel.

In some embodiments, the connecting member is further provided with a first groove and a second groove, one end of the first clamping member is rotatably arranged in the first groove and penetrates through the connecting member to be connected with the first driven wheel; one end of the second clamping piece is rotatably arranged in the second groove and penetrates through the connecting piece to be connected with the second driven wheel.

In some embodiments, the first clamping member includes a first connecting portion and a first positioning portion, one end of the first connecting portion is connected to the first driven wheel, the other end of the first connecting portion is connected to the first positioning portion, and the first positioning portion is used for abutting against a workpiece; the second clamping piece comprises a second connecting portion and a second positioning portion, one end of the second connecting portion is connected with the second driven wheel, the other end of the second connecting portion is connected with the second positioning portion, and the second positioning portion is used for abutting against a workpiece.

In some embodiments, a first recess is disposed on the first connecting portion, and the first recess is disposed in the first groove; and a second concave part is arranged on the second connecting part and is arranged in the second groove.

In some embodiments, along the axial direction of the transmission rod, the two end surfaces of the first groove respectively abut against the step surfaces at the two ends of the first recess, and the two end surfaces of the second groove respectively abut against the step surfaces at the two ends of the second recess.

In some embodiments, a positioning groove is formed at an end of the first positioning portion, a mounting groove and a positioning protrusion are formed at an end of the first connecting portion away from the connecting member, the end of the first positioning portion is received in the mounting groove, and the positioning protrusion is partially disposed in the positioning groove.

In some embodiments, fixture still includes the mount pad, follows the axial direction of transfer line, the mount pad includes relative first installation department and the second installation department that sets up, first installation department with be equipped with the cavity between the second installation department, coupling assembling removes and locates in the cavity, the driver with the centre gripping subassembly install respectively in the second installation department with first installation department.

In some embodiments, a first mounting hole is formed in the first mounting portion, and the first connecting portion of the first clamping piece and the second connecting portion of the second clamping piece penetrate through the first mounting hole and are connected with the connecting assembly.

In some embodiments, a second mounting hole is formed in the second mounting portion, a driving shaft is arranged at one end of the driver, the driver is fixedly connected to one side, away from the cavity, of the second mounting portion, and the driving shaft penetrates through the second mounting hole and is connected with the transmission rod.

The application provides a fixture utilizes and is connected to first holder, second holder in same driver, reaches the purpose of multiple spot position centre gripping to through setting up the gear assembly, utilize transfer line and driver can drive first holder, second holder and rotate, make the motion mode of holder diversified, satisfy multiple complicated location demand.

Drawings

Fig. 1 is a schematic structural diagram of a clamping mechanism in an embodiment.

Fig. 2 is a schematic structural view of the clamping mechanism shown in fig. 1 after a cover plate is removed.

Fig. 3 is an exploded view of the clamping mechanism shown in fig. 2.

Fig. 4 is a partial structural schematic view of the clamping mechanism shown in fig. 3.

Fig. 5 is a partial exploded view of the clamping mechanism of fig. 3.

Description of the main element symbols:

the specific implementation mode is as follows:

the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The application provides a fixture, including driver, coupling assembling and centre gripping subassembly, the coupling assembling transmission connect in the driver with between the centre gripping subassembly. Coupling assembling includes transfer line, connecting piece and gear assembly, the one end of transfer line is connected the driver, the driver is used for driving the transfer line removes and/or rotates, the other end of transfer line rotates and connects the connecting piece, the gear assembly install in on the transfer line. The clamping assembly comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are arranged side by side and detachably connected to the connecting piece, and the gear assembly is in transmission connection with the first clamping piece, the second clamping piece and the transmission rod.

Above-mentioned fixture utilizes and is connected to first holder, second holder in same driver, reaches the purpose of multiple spot position centre gripping to through setting up the gear assembly, utilize transfer line and driver can drive first holder, second holder and rotate, make the motion mode of holder diversified, satisfy multiple complicated location demand.

Some embodiments of the present application are described in detail. In the following embodiments, features of the embodiments may be combined with each other without conflict.

Referring to fig. 1 and fig. 2, in an embodiment, the clamping mechanism 100 includes a driver 10, a connecting assembly 20 and a clamping assembly 30, the connecting assembly 20 is connected between the driver 10 and the clamping assembly 30 in a transmission manner, and the driver 10 drives the clamping assembly 30 to abut against a workpiece (not shown) placed in a fixture (not shown) through the connecting assembly 20, so as to clamp and position the workpiece in the fixture. The driver 10 includes, but is not limited to, a cylinder, a motor, and the like.

Specifically, the linkage assembly 20 includes a drive rod 21, a linkage 22, and a gear assembly 23. One end of the transmission rod 21 is connected with the driver 10, and the driver 10 is used for driving the transmission rod 21 to move and/or rotate. The other end of the transmission rod 21 is rotatably connected with the connecting piece 22, and the gear assembly 23 is installed on the transmission rod 21. The clamping assembly 30 comprises a first clamping piece 31 and a second clamping piece 32, the first clamping piece 31 and the second clamping piece 32 are arranged in parallel and detachably connected to the connecting piece 22, and the gear assembly 23 is in transmission connection with the first clamping piece 31, the second clamping piece 32 and the transmission rod 21. When the driver 10 moves the transmission rod 21 in the axial direction, i.e. up and down in the view angle shown in fig. 1, the first clamping part 31 and the second clamping part 32 can be moved synchronously with the transmission rod 21 by the connecting part 22. When the driver 10 drives the transmission rod 21 to rotate, the first clamping member 31 and the second clamping member 32 can rotate synchronously with the transmission rod 21 under the action of the gear assembly 23. Depending on the actual requirements of the clamping assembly 30, a specific sequence of up and down, rotation, rotational interlock up and down, up and down and rotational separate actions of the clamping assembly 30 can be achieved using different types of drives 10.

Referring to fig. 3 and 4, the gear assembly 23 includes a driving wheel 231, a first driven wheel 232 and a second driven wheel 233, the driving wheel 231 is sleeved on the transmission rod 21, the first driven wheel 232 is sleeved on the first clamping member 31, the second driven wheel 233 is sleeved on the second clamping member 32, and the first driven wheel 232 and the second driven wheel 233 are respectively engaged with the driving wheel 231. When the transmission rod 21 rotates, the driving wheel 231 and the transmission rod 21 rotate synchronously, so as to drive the first driven wheel 232 and the second driven wheel 233 to rotate, and the first clamping member 31 and the second clamping member 32 rotate synchronously with the first driven wheel 232 and the second driven wheel 233, respectively. In the embodiment of the present application, the diameters of the first driven wheel 232 and the second driven wheel 233 are the same to maintain the same rotation speeds of the first clamping member 31 and the second clamping member 32. In other embodiments, the diameters of the first driven wheel 232 and the second driven wheel 233 may also be different, so that the rotation speeds of the first clamping member 31 and the second clamping member 32 are not the same, which is sufficient for meeting design requirements, and this application does not limit this.

With continued reference to fig. 5, an end of the transmission rod 21 facing away from the driver 10 extends through the connecting element 22 and is rotatably connected to the connecting element 22, i.e. when the transmission rod 21 rotates, the connecting element 22 does not rotate. In the embodiment of the present application, the first clamping member 31 and the second clamping member 32 are symmetrically disposed on both sides of the connecting member 22. The connecting member 22 is further provided with a first groove 221 and a second groove 222. One end of the first clamping member 31 is rotatably disposed in the first groove 221, and the penetrating connecting member 22 is connected to the first driven wheel 232. One end of the second clamping member 32 is rotatably disposed in the second groove, and the penetrating connector 22 is connected to the second driven wheel 233.

The first clamping member 31 includes a first connecting portion 311 and a first positioning portion 312, one end of the first connecting portion 311 passes through the connecting member 22 and is connected to the first driven wheel 232, the other end of the first connecting portion 311 is connected to the first positioning portion 312, and the first positioning portion 312 is used for supporting a workpiece to clamp and position the workpiece. The second clamping member 32 includes a second connecting portion 321 and a second positioning portion 322, one end of the second connecting portion 321 penetrates through the connecting member 22 and is connected to the second driven wheel 233, the other end of the second connecting portion 321 is connected to the second positioning portion 322, and the second positioning portion 322 is used for abutting against a workpiece to clamp and position the workpiece.

Further, a first concave portion 313 is arranged on the first connecting portion 311, the first concave portion 313 is arranged in the first groove 221, and along the axial direction of the transmission rod 21, two end surfaces of the first groove 221 respectively abut against step surfaces at two ends of the first concave portion 313, so that the connecting member 22 can drive the first clamping member 31 to move. The second connecting portion 321 is provided with a second concave portion 323, the second concave portion 323 is disposed in the second groove 222, and along the axial direction of the transmission rod 21, the two end surfaces of the second groove 222 respectively abut against the step surfaces at the two ends of the second concave portion 323, so as to facilitate the connecting member 22 to drive the second clamping member 32 to move.

One end of the first positioning portion 312 is detachably connected to the first connecting portion 311, and the other end of the first positioning portion 312 is provided with a first protruding portion 3121, where the first protruding portion 3121 is used for abutting against a workpiece. Specifically, a positioning groove 3122 is disposed at an end of the first positioning portion 312 away from the first protruding portion 3121, an installation groove 3111 and a positioning protrusion 3112 are disposed at an end of the first connecting portion 311 away from the connecting portion 22, the end of the first positioning portion 312 is received in the installation groove 3111, and the positioning protrusion 3112 is partially disposed in the positioning groove 3122. The structure of the first clamping member 31 is the same as that of the second clamping member 32, and the connection structure between the second positioning portion 322 and the second connecting portion 321 is not described herein again.

In other embodiments, the clamping assembly 30 may further include a third clamping member (not shown) or more clamping members to achieve the multi-point clamping function of one actuator 10. The number of the driven wheels corresponds to the number of the clamping pieces one by one.

Referring to fig. 1, 2 and 3 again, the clamping mechanism 100 further includes a mounting base 40, the connecting assembly 20 is movably disposed in the cavity 43 of the mounting base 40, and the driver 10 and the clamping assembly 30 are respectively mounted on two opposite sides of the mounting base 40.

Specifically, along the axial direction of the transmission rod 21, the mounting seat 40 includes a first mounting portion 41 and a second mounting portion 42 which are oppositely arranged, and the cavity 43 is located between the first mounting portion 41 and the second mounting portion 42.

The first mounting portion 41 is provided with first mounting holes 411, and the number of the first mounting holes 411 corresponds to the number of the clamping members. The first connecting portion 311 and the second connecting portion 321 are movably disposed in the first mounting hole 411 and penetrate the first mounting portion 41 from the first mounting hole 411 to connect the connecting assembly 20. The first mounting portion 41 is used for positioning the clamping assembly 30 and guiding the moving direction of the clamping assembly 30, so that the problem that the clamping assembly 30 is inclined during moving is reduced. Under the positioning action of the first mounting part 41, when the transmission rod 21 drives the first clamping piece 31 and the second clamping piece 32 to rotate through the gear assembly 23, the connecting piece 22 does not rotate, and the transmission rod 21, the first clamping piece 31 and the second clamping piece 32 all rotate relative to the connecting piece 22, so that the movement stability of the first clamping piece 31 and the second clamping piece 32 in the axial direction is maintained, and the positioning accuracy of the clamping mechanism 100 is optimized.

Be equipped with second mounting hole 421 on the second installation department 42, the one end of driver 10 is equipped with drive shaft 11, driver 10 fixed connection in second installation department 42 deviates from one side of cavity 43, drive shaft 11 runs through second mounting hole 421 and with transfer line 21 is connected. In the embodiment of the present application, the transmission rod 21 is screwed to the drive shaft 11. The driver 10 further includes a positioning element 12, and the positioning element 12 is inserted into the driving shaft 11 and the transmission rod 21 along a radial direction of the driving shaft 11 to fix the driving shaft 11 and the transmission rod 21.

Further, a cover plate 50 is further arranged on the mounting seat 40, and the cover plate 50 is detachably arranged on the mounting seat 40 and used for covering the cavity 43 and protecting the connecting assembly 20 and other structures arranged in the cavity 43.

Although the present application has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the present application.

Claims

1. A clamping mechanism comprises a driver, a connecting assembly and a clamping assembly, wherein the connecting assembly is in transmission connection between the driver and the clamping assembly;

the connecting assembly is characterized by comprising a transmission rod, a connecting piece and a gear assembly, wherein one end of the transmission rod is connected with the driver, the driver is used for driving the transmission rod to move and/or rotate, the other end of the transmission rod is rotationally connected with the connecting piece, and the gear assembly is arranged on the transmission rod;

the clamping assembly comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are arranged side by side and detachably connected to the connecting piece, and the gear assembly is in transmission connection with the first clamping piece, the second clamping piece and the transmission rod.

2. The clamping mechanism as recited in claim 1, wherein the gear assembly includes a driving wheel, a first driven wheel and a second driven wheel, the driving wheel is disposed on the transmission rod, the first driven wheel is disposed on the first clamping member, the second driven wheel is disposed on the second clamping member, and the first driven wheel and the second driven wheel are respectively engaged with the driving wheel.

3. The clamping mechanism as claimed in claim 2, wherein the connecting member is further provided with a first groove and a second groove, one end of the first clamping member is rotatably arranged in the first groove and penetrates through the connecting member to be connected with the first driven wheel; one end of the second clamping piece is rotatably arranged in the second groove and penetrates through the connecting piece to be connected with the second driven wheel.

4. The clamping mechanism as claimed in claim 3, wherein the first clamping member comprises a first connecting part and a first positioning part, one end of the first connecting part is connected with the first driven wheel, the other end of the first connecting part is connected with the first positioning part, and the first positioning part is used for abutting against a workpiece; the second clamping piece comprises a second connecting portion and a second positioning portion, one end of the second connecting portion is connected with the second driven wheel, the other end of the second connecting portion is connected with the second positioning portion, and the second positioning portion is used for abutting against a workpiece.

5. The clamping mechanism of claim 4, wherein said first connecting portion has a first recess disposed therein; and a second concave part is arranged on the second connecting part, and the second concave part is arranged in the second groove.

6. The clamping mechanism as recited in claim 5, wherein along an axial direction of said driving rod, two end surfaces of said first groove respectively abut against step surfaces at two ends of said first recess, and two end surfaces of said second groove respectively abut against step surfaces at two ends of said second recess.

7. The clamping mechanism as claimed in claim 4, wherein a positioning groove is provided at an end of the first positioning portion, a mounting groove and a positioning protrusion are provided at an end of the first connecting portion away from the connecting member, the end of the first positioning portion is received in the mounting groove, and the positioning protrusion is partially provided in the positioning groove.

8. The clamping mechanism as claimed in claim 1, further comprising a mounting seat, wherein the mounting seat comprises a first mounting portion and a second mounting portion which are arranged oppositely along the axial direction of the transmission rod, a cavity is arranged between the first mounting portion and the second mounting portion, the connecting assembly is movably arranged in the cavity, and the driver and the clamping assembly are respectively arranged on the second mounting portion and the first mounting portion.

9. The clamping mechanism as claimed in claim 8, wherein a first mounting hole is formed on the first mounting portion, and the first clamping member and the second clamping member extend through the first mounting hole and connect to the connecting assembly.

10. The clamping mechanism as recited in claim 8, wherein a second mounting hole is formed in the second mounting portion, a driving shaft is disposed at one end of the driver, the driver is fixedly connected to a side of the second mounting portion away from the cavity, and the driving shaft penetrates through the second mounting hole and is connected to the driving rod.