CN215036712U

CN215036712U - Strong holding and clamping mechanism

Info

Publication number: CN215036712U
Application number: CN202120391631.6U
Authority: CN
Inventors: 刘建营; 罗兵
Original assignee: Guangzhou Yuanhao Automation Intelligent Technology Group Co ltd
Current assignee: Guangzhou Yuanhao Automation Intelligent Technology Group Co ltd
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-12-07
Anticipated expiration: 2031-02-22

Abstract

The utility model discloses a powerful holding and clamping mechanism, which comprises a support, wherein the support comprises a bearing platform and support plates arranged at two sides of the bearing platform; an air cylinder is fixed at the bottom of the bearing platform, a piston rod of the air cylinder is connected with a push block, two sides of the push block are connected with first connecting rods which are symmetrically arranged, and the first connecting rods are connected with second connecting rods; one end of the first connecting rod is hinged with the push block, the other end of the first connecting rod is hinged with the bottom end of the second connecting rod, the top end of the second connecting rod is connected with clamping blocks, and the two clamping blocks protrude out of the bearing platform and are symmetrically positioned on two sides of the bearing platform; the inner side of the middle part of the second connecting rod is hinged with the supporting plate through a horizontal rotating shaft. The cylinder utilizes first connecting rod and second connecting rod drive two clamp blocks to embrace and press from both sides the action, can effectively exert the power of cylinder, and under 0.5MPa atmospheric pressure condition, embrace the power of pressing from both sides and can reach 12KN, make the work piece by effective clamp tightly, avoid the work piece to take place the condition emergence that the displacement leads to processing failure.

Description

Strong holding and clamping mechanism

Technical Field

The utility model relates to an embrace and press from both sides technical field of the mechanism, especially relate to a powerful armful of press from both sides mechanism.

Background

When the mechanical industry processes the workpiece, devices capable of fixing the workpiece, such as various clamps, are needed; the work piece just can be fixed to anchor clamps need manual setting in the past, along with the development of science and technology, has appeared a lot of automatic anchor clamps, if utilize power components such as cylinder, electric jar to fix the work piece. However, the existing automatic clamp has some problems, such as insufficient clamping force for holding the workpiece in the process of fixing the workpiece, so that the workpiece is displaced in the machining process, and the workpiece machining fails.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a powerful armful of clamp mechanism can solve the problem that the current anchor clamps embrace the clamp power degree not enough to the work piece to a certain extent at least.

The technical scheme of the utility model is realized like this:

a powerful clamping mechanism comprises a support, wherein the support comprises a bearing platform and support plates arranged on two sides of the bearing platform; an air cylinder is fixed at the bottom of the bearing platform, a piston rod of the air cylinder is connected with a push block, two sides of the push block are connected with first connecting rods which are symmetrically arranged, and the first connecting rods are connected with second connecting rods; one end of the first connecting rod is hinged with the push block, the other end of the first connecting rod is hinged with the bottom end of the second connecting rod, the top end of the second connecting rod is connected with clamping blocks, and the two clamping blocks protrude out of the bearing platform and are symmetrically positioned on two sides of the bearing platform; the inner side of the middle part of the second connecting rod is hinged with the supporting plate through a horizontal rotating shaft.

As a further alternative of the strong holding and clamping mechanism, two ends of the horizontal rotating shaft are distributed and fixed on the two supporting plates, a sleeve portion is arranged on the inner side of the middle portion of the second connecting rod and sleeved on the horizontal rotating shaft, and a bearing is arranged between the sleeve portion and the horizontal rotating shaft.

As a further alternative of the powerful holding and clamping mechanism, two supporting plates are provided with through holes for sleeving the horizontal rotating shaft, the outer circumference of one end of the horizontal rotating shaft is provided with a clamping groove which is radially and concavely arranged along the outer circumference of the one end of the horizontal rotating shaft, the clamping groove is positioned outside the supporting plates, clamping plates are detachably fixed on the outer side surfaces of the supporting plates, and the clamping plates are inserted in the clamping grooves.

As a further alternative of the powerful holding and clamping mechanism, the support further comprises a bottom plate, the bottom plate is arranged between the two supporting plates, a guide block is arranged on the bottom plate, a guide groove which is vertically arranged is formed in the guide block, and the push block is arranged in the guide groove in a lifting manner.

As a further alternative of the strong holding and clamping mechanism, the cross section of the push block is in a cross shape, and the cross section of the guide groove is matched with the cross section of the push block.

As a further alternative of the strong clamping mechanism, a first sensor and a second sensor are arranged on the inner side surface of one of the supporting plates, an induction block is arranged on the side surface of the second connecting rod, and the first sensor and the second sensor are respectively located at the limit positions of the moving path of the induction block.

As a further alternative of the strong clasping mechanism, the support further comprises a protective cover covering the second link.

The beneficial effects of the utility model are that: through the unique connecting rod structure of design, the cylinder utilizes two clamp blocks of first connecting rod and the drive of second connecting rod to embrace the clamp action, can effectively exert the power of cylinder, and under 0.5MPa atmospheric pressure condition, embrace the clamp power and can reach 12KN, make the work piece effectively pressed from both sides tightly, avoid the work piece to take place the condition emergence that the displacement leads to processing failure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a strong holding and clamping mechanism of the present invention;

fig. 2 is a schematic view of the internal structure of a strong clasping mechanism of the present invention;

FIG. 3 is a schematic structural view of the support plate;

FIG. 4 is a schematic view of a connection structure of the cylinder and the clamping block;

FIG. 5 is a schematic view of the mounting of the first and second sensors on the support plate;

fig. 6 is an exploded view of the horizontal rotary shaft and the support plate;

fig. 7 is a schematic structural view of the strong holding and clamping mechanism of the present invention with a protective cover.

In the figure: 1. a support; 11. a bearing platform; 12. a support plate; 121. a through hole; 122. clamping a plate; 123. a first sensor; 124. a second sensor; 13. a base plate; 131. a guide block; 132. a guide groove; 14. a protective cover; 2. a cylinder; 3. a push block; 4. a first link; 5. a second link; 51. a sleeve portion; 52. an induction block; 6. a clamping block; 7. a horizontal rotating shaft; 71. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-7, a strong clasping mechanism is shown, which comprises a support 1, wherein the support 1 comprises a bearing platform 11 and support plates 12 arranged on two sides of the bearing platform 11; an air cylinder 2 is fixed at the bottom of the bearing platform 11, a piston rod of the air cylinder 2 is connected with a push block 3, two sides of the push block 3 are connected with first connecting rods 4 which are symmetrically arranged, and the first connecting rods 4 are connected with second connecting rods 5; one end of the first connecting rod 4 is hinged with the push block 3, the other end of the first connecting rod is hinged with the bottom end of the second connecting rod 5, the top end of the second connecting rod 5 is connected with clamping blocks 6, and the two clamping blocks 6 protrude above the bearing platform 11 and are symmetrically positioned on two sides of the bearing platform 11; the inner side of the middle part of the second connecting rod 5 is hinged with the supporting plate 12 through a horizontal rotating shaft 7.

Specifically, referring to fig. 2 and 4, a piston rod of the cylinder 2 faces downward, and the cylinder 2 drives the push block 3 to lift in a vertical direction; when the cylinder 2 pushes the push block 3 to move downwards, the push block 3 enables the bottom ends of the second connecting rods 5 to be far away from each other through the first connecting rods 4, so that the top ends of the second connecting rods 5 are close to each other, and clamping action of the two clamping blocks 6 is achieved; when the two clamping blocks 6 need to release the workpiece, the air cylinder 2 pulls the push block 3 to ascend, and the specific process is opposite to the clamping holding action.

So, through the unique connecting rod structure of design, cylinder 2 utilizes two clamp splice 6 of first connecting rod 4 and the drive of second connecting rod 5 to embrace and press from both sides the action, can effectively exert 2's of cylinder power, under 0.5MPa atmospheric pressure condition, embraces the power of pressing from both sides and can reach 12KN, makes the work piece by effective clamp tightly, avoids the work piece to take place the condition emergence that the displacement leads to processing failure. The cylinder 2 is a common thin cylinder.

In the above embodiment, in order to ensure that the second connecting rod 5 can stably and smoothly rotate with the horizontal rotating shaft 7, referring to fig. 2 and 4, two ends of the horizontal rotating shaft 7 are distributed and fixed on the two support plates 12, a sleeve portion 51 is disposed on an inner side of a middle portion of the second connecting rod 5, the sleeve portion 51 is sleeved on the horizontal rotating shaft 7, and a bearing is disposed between the sleeve portion 51 and the horizontal rotating shaft 7. In addition, in order to make the structure simple and easy to produce and maintain, referring to fig. 3 and 6 again, through holes 121 for sleeving the horizontal rotating shafts 7 are formed in the two support plates 12, clamping grooves 71 which are recessed along the radial direction of the outer circumference of one end of each horizontal rotating shaft 7 are formed in the outer circumference of one end of each horizontal rotating shaft 7, the clamping grooves 71 are located outside the support plates 12, clamping plates 122 are detachably fixed on the outer side surfaces of the support plates 12, and the clamping plates 122 are inserted into the clamping grooves 71. Thus, when the clamping plate 122 is inserted into the clamping groove 71, the horizontal rotating shaft 7 cannot move axially in the through hole 121 and cannot rotate; when the horizontal rotating shaft 7 needs to be detached, the clamping plate 122 is firstly detached from the supporting plate 12, so that the clamping plate 122 is not inserted into the clamping groove 71; wherein the clamping plate 122 is connected with the supporting plate 12 by a screw.

In some specific embodiments, since a workpiece may be subjected to a torsion force during machining, referring to fig. 2, the support 1 further includes a bottom plate 13, the bottom plate 13 is disposed between the two support plates 12, a guide block 131 is disposed on the bottom plate 13, a guide groove 132 vertically disposed is disposed on the guide block 131, and the push block 3 is disposed in the guide groove 132 in a liftable manner. In this way, the pushing block 3 moves along the guide groove 132, so that the pushing block 3 is stably lifted, and the actions of the first connecting rod 4, the second connecting rod 5 and the clamping block 6 are more stable. In addition, preferably, the cross section of the pushing block 3 is cross-shaped, and the cross section of the guide groove 132 is adapted to the cross section of the pushing block 3. Thus, the guiding groove 132 ensures that the pushing block 3 cannot rotate, and the torsion force applied to the workpiece can be shared by the guiding block 131 and the base, so that the workpiece can be fixed more stably.

In the above embodiment, in order to control the clasping action of the clamping block 6 conveniently, referring to fig. 2 and 5, a first sensor 123 and a second sensor 124 are disposed on an inner side surface of one of the supporting plates 12, a sensing block 52 is disposed on a side surface of the second connecting rod 5, and the first sensor 123 and the second sensor 124 are respectively located at extreme positions of a moving path of the sensing block 52. Thus, when a workpiece needs to be clamped, the cylinder 2 drives the push block 3 to drive the induction block 52 to move, and when the induction block 52 is induced by the first sensor 123, the clamping block 6 clamps the workpiece; when the workpiece needs to be loosened, the air cylinder 2 drives the push block 3 to drive the induction block 52 to move, and when the induction block 52 is induced by the second sensor 124, the clamping block 6 is represented to loosen the workpiece.

In the above embodiment, in order to avoid the first link 4, the second link 5, and the like from being affected by the outside, referring to fig. 7, the support 1 further includes a protective cover 14 covering the second link 5. In this way, the protection cover 14 isolates the first link 4, the second link 5 and other members from the outside to a certain extent, so as to reduce the possibility that the outside may affect the first link 4, the second link 5 and other members.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A powerful clamping mechanism is characterized by comprising a support, wherein the support comprises a bearing platform and support plates arranged on two sides of the bearing platform; an air cylinder is fixed at the bottom of the bearing platform, a piston rod of the air cylinder is connected with a push block, two sides of the push block are connected with first connecting rods which are symmetrically arranged, and the first connecting rods are connected with second connecting rods; one end of the first connecting rod is hinged with the push block, the other end of the first connecting rod is hinged with the bottom end of the second connecting rod, the top end of the second connecting rod is connected with clamping blocks, and the two clamping blocks protrude out of the bearing platform and are symmetrically positioned on two sides of the bearing platform; the inner side of the middle part of the second connecting rod is hinged with the supporting plate through a horizontal rotating shaft.

2. A strong clasping mechanism as claimed in claim 1, wherein two ends of the horizontal shaft are fixed on two supporting plates, a sleeve is provided on the inner side of the middle portion of the second connecting rod, the sleeve is sleeved on the horizontal shaft, and a bearing is provided between the sleeve and the horizontal shaft.

3. A strong holding and clamping mechanism as claimed in claim 2, wherein two of said supporting plates are provided with through holes for receiving said horizontal shaft, the outer circumference of one end of said horizontal shaft is provided with a slot recessed along the radial direction thereof, said slot is located outside said supporting plates, the outer side of said supporting plates is detachably fixed with a clamping plate, and said clamping plate is inserted into said slot.

4. A strong holding and clamping mechanism according to claim 1, wherein said supporting base further comprises a bottom plate, said bottom plate is disposed between two supporting plates, said bottom plate is provided with a guide block, said guide block is provided with a vertically disposed guide groove, and said push block is liftably disposed in said guide groove.

5. A strong clasping mechanism as in claim 4, wherein the cross section of the push block is cross-shaped, and the cross section of the guide groove is adapted to the cross section of the push block.

6. A strong clasping mechanism as claimed in claim 1, wherein a first sensor and a second sensor are provided on the inner side of one of the support plates, and a sensing block is provided on the side of the second link, and the first sensor and the second sensor are respectively located at the extreme positions of the moving path of the sensing block.

7. A strong clasping mechanism as in claim 1 wherein said mount further comprises a protective shield covering said second link.