CN216682252U - Flexible clamping mechanism and clamping device - Google Patents

Abstract

The utility model relates to the technical field of clamping equipment, and particularly discloses a flexible clamping mechanism and a clamping device, wherein the flexible clamping mechanism comprises a flexible clamping jaw and an adapter for connecting an air source system; one end of the flexible clamping jaw is provided with at least two clamping fingers, and the other end of the flexible clamping jaw is provided with an air cavity communicated with the adapter; one end of the air cavity, which is far away from the adapter, extends into each claw finger; and an interval space for the fingers to be folded and deformed is arranged between every two adjacent fingers. The flexible clamping mechanism and the clamping device provided by the utility model can effectively solve the problem that a clamped workpiece is easily damaged by a traditional clamp.

Description

Flexible clamping mechanism and clamping device

Technical Field

The utility model relates to the technical field of clamping equipment, in particular to a flexible clamping mechanism and a clamping device.

Background

In actual production process, when the operation is snatched to the work piece to needs, generally can use traditional anchor clamps such as the hard clamping jaw of machinery, the clamping jaw of traditional anchor clamps is the rigid structure, can't take place the adaptability according to the appearance of the work piece that is snatched and change, consequently, traditional anchor clamps often can receive the influence of product different shapes, material, position, lead to unable smooth completion snatch the operation.

Further, the clamping jaws of the conventional clamp are rigid, the clamping force is difficult to adjust, and when fine workpieces such as scissor legs of a keyboard are clamped, the workpieces are easily crushed or damaged.

Therefore, there is a need for an improved conventional clamp to solve the problem that it is easy to damage a clamped workpiece.

The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is currently known to one of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a flexible clamping mechanism and a clamping device, which can effectively solve the problem that the conventional clamp is easy to damage the clamped workpiece.

In order to achieve the above objects, in one aspect, the present invention provides a flexible clamping mechanism, including a flexible clamping jaw and an adapter for connecting an air source system;

one end of the flexible clamping jaw is provided with at least two jaw fingers, and the other end of the flexible clamping jaw is provided with an air cavity communicated with the adapter;

one end of the air cavity, which is far away from the adapter, extends into each claw finger;

and an interval space for the fingers to be folded and deformed is arranged between every two adjacent fingers.

Optionally, each of the jaw finger loops is equally spaced about the axis of the flexible jaw.

Optionally, the number of the fingers is three.

Optionally, the flexible clamping jaw is of an integrally formed structure.

Optionally, the flexible clamping jaw is made of rubber or silica gel.

Optionally, one end of the adapter is provided with a slot for inserting the flexible clamping jaw, and the other end of the adapter is provided with an air hole for communicating the slot with the external space of the adapter.

Optionally, the slot wall of the slot is provided with an annular abdicating slot;

and a sealing ring is arranged in the annular abdicating groove.

Optionally, the part of the air cavity extending into each claw finger is a conical cavity;

the thickness of the outer wall of the claw finger positioned outside the conical cavity is gradually reduced towards the direction far away from the adapter;

the claw indicates that to be located the inboard inner wall thickness in conical cavity is towards keeping away from the direction of adapter is crescent.

In another aspect, a clamping device is provided, which comprises any one of the flexible clamping mechanism and the air source system,

and the air source system is communicated with the adapter of the flexible clamping mechanism and is used for providing positive pressure or negative pressure for the air cavity.

The utility model has the beneficial effects that: the flexible clamping mechanism and the clamping device have the advantages that the flexible clamping jaw is used for replacing a traditional rigid clamping jaw, when each claw finger grabs a workpiece, each finger can generate self-adaptive deformation according to the size and the surface shape of the workpiece after being grabbed by the workpiece, so that the workpiece can be accurately clamped, and the workpiece cannot be damaged due to overlarge clamping force.

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, and 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 inventive exercise.

FIG. 1 is a general schematic view of a flexible clamping mechanism provided by an embodiment;

FIG. 2 is a schematic view of section B-B of FIG. 1;

fig. 3 is an exploded schematic view of the flexible clamping mechanism provided by the embodiment.

In the figure:

1. a flexible jaw;

101. a claw finger; 1011. an outer wall; 1012. an inner wall;

102. an air cavity; 1021. a conical cavity;

103. an intervening space;

2. an adapter;

201. a slot; 2011. an annular abdicating groove;

202. and (4) air holes.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that 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 a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.

The present invention will be described in detail below with reference to specific embodiments shown in the accompanying drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

The utility model provides a flexible clamping mechanism and a clamping device with the flexible clamping mechanism and an air source system. It should be noted that the clamping device of the present invention can be used for clamping chips or keyboard scissors, and the like, unlike the rigid structure of the traditional clamp, the flexible clamping mechanism has soft pneumatic "fingers", can self-adaptively coat the clamped workpiece, does not need to be pre-adjusted according to the size and shape of the workpiece, and gets rid of the constraint that the traditional production line requires the production objects to be equal in size.

Referring to fig. 1 to 3, the flexible clamping mechanism comprises a flexible clamping jaw 1 and an adapter 2 connected with an air source system. One end of the flexible clamping jaw 1 is provided with at least two jaw fingers 101, and the other end of the flexible clamping jaw is provided with an air cavity 102 communicated with the adapter 2. One end of the air cavity 102 away from the adapter 2 extends into each of the fingers 101.

Optionally, the part of the air cavity 102 extending into each finger 101 is a conical cavity 1021, so that a gripping action occurs. An interval space 103 for the contraction and deformation of each finger 101 is arranged between two adjacent fingers 101. The air source system is communicated with the adapter 2 of the flexible clamping mechanism and is used for providing positive pressure or negative pressure for the air cavity 102. It should be noted that each finger 101 has a conical cavity 1021, and the conical cavities 1021 have the same shape and size. Fig. 2 is limited in location by section B-B, and fails to show all of the conical cavities 1021.

It can be understood that, in the clamping device provided by the present embodiment, the flexible clamping jaw 1 is used to replace the conventional rigid clamping jaw, when the each finger 101 grabs the workpiece, the each finger can generate self-adaptive deformation according to the size and surface shape of the workpiece after being grabbed by the workpiece, so as to accurately clamp the workpiece, and the workpiece cannot be damaged due to excessive clamping force.

In this embodiment, the thickness of the outer wall 1011 of the finger 101 located outside the conical cavity 1021 gradually decreases in a direction away from the adapter 2; the thickness of the inner wall 1012 of the fingers 101 inside the conical cavity 1021 increases gradually away from the adapter 2. Such structural design can be so that when changing the atmospheric pressure in air cavity 102, the inner wall 1012 and the outer wall 1011 atress of finger 101 are inhomogeneous, specifically, when air supply system let in high-pressure gas through adapter 2 to air cavity 102, each finger 101 can outwards strut, reserve the interstitial space 103 that supplies the work piece to get into, the work piece is arranged in interstitial space 103 back, and air supply system passes through adapter 2 and to the evacuation of air cavity 102, and each finger 101 can inwards draw in to press from both sides the work piece in the tight interstitial space 103.

In some other embodiments, the thickness of the outer wall 1011 of the finger 101 outside the conical cavity 1021 may be gradually increased toward the direction away from the adapter 2; the thickness of the inner wall 1012 of the fingers 101 inside the conical cavity 1021 decreases away from the adapter 2. Then, when the air supply system vacuumizes the air cavity 102 through the adapter 2, each finger 101 is stretched outwards, a space 103 for a workpiece to enter is reserved, after the workpiece is located in the space 103, the air supply system inputs high-pressure air to the air cavity 102 through the adapter 2, and each finger 101 is folded inwards, so that the workpiece in the space 103 is clamped.

In this embodiment, the fingers 101 are equally spaced around the axis of the flexible clamping jaw 1 so that the clamping force applied by the fingers 101 to the workpiece is uniformly controllable.

Optionally, the number of the fingers 101 is two, three, four or more, preferably three, and the three-jaw design can reduce the cost and realize reliable clamping.

In this embodiment, flexible clamping jaw 1 is integrated into one piece structure, and further, flexible clamping jaw 1 is rubber or silica gel material.

Optionally, the one end of adapter 2 is equipped with the confession flexible clamping jaw 1 male slot 201, and the other end is equipped with the intercommunication slot 201 extremely the gas pocket 202 of adapter 2's exterior space. Further, the groove wall of the slot 201 is provided with an annular abdicating groove 2011; be equipped with the sealing washer in the cyclic annular groove of stepping down 2011 to prevent the gap gas leakage between adapter 2 and the flexible clamping jaw 1.

The flexible clamping mechanism and the clamping device provided by the embodiment have the following advantages:

the device can be suitable for workpieces such as scissor legs with different sizes and different shapes;

secondly, the workpiece such as the scissor legs and the like cannot be deformed and damaged when being clamped;

the clamping process is stable and reliable, the workpiece is not easy to drop, and the workpiece can withstand shaking, swinging and vibration.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims (9)

1. A flexible clamping mechanism is characterized by comprising a flexible clamping jaw and an adapter for connecting an air source system;

one end of the flexible clamping jaw is provided with at least two clamping fingers, and the other end of the flexible clamping jaw is provided with an air cavity communicated with the adapter;

one end of the air cavity, which is far away from the adapter, extends into each claw finger;

and an interval space for the fingers to be folded and deformed is arranged between every two adjacent fingers.

2. The flexible clamping mechanism of claim 1 wherein each of said jaw finger loops are equally spaced about an axis of said flexible clamping jaw.

3. The flexible clamping mechanism of claim 2 wherein the number of fingers is three.

4. The flexible clamping mechanism of claim 1 wherein the flexible clamping jaw is of unitary construction.

5. The flexible clamping mechanism as recited in claim 4, wherein the flexible clamping jaw is made of rubber or silicone.

6. The flexible clamping mechanism as claimed in claim 1, wherein the adapter is provided with a slot for inserting the flexible clamping jaw at one end and an air hole for communicating the slot with the external space of the adapter at the other end.

7. The flexible clamping mechanism of claim 6 wherein the slot wall of the slot is provided with an annular relief groove;

and a sealing ring is arranged in the annular abdicating groove.

8. The flexible clamping mechanism according to claim 1, wherein the part of the air cavity extending into each claw finger is a conical cavity;

the thickness of the outer wall of the claw finger positioned outside the conical cavity is gradually reduced towards the direction far away from the adapter;

the claw indicates that to be located the inboard inner wall thickness in conical cavity is towards keeping away from the direction of adapter is crescent.

9. A clamping device, comprising an air supply system and a flexible clamping mechanism as claimed in any one of claims 1 to 8,

and the air source system is communicated with the adapter of the flexible clamping mechanism and is used for providing positive pressure or negative pressure for the air cavity.

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