CN212497393U - Pneumatic clamping claw with adjustable clamping force - Google Patents

Abstract

The utility model discloses a pneumatic centre gripping of adjustable centre gripping dynamics is grabbed, including the claw body, prop cover and cylinder, the one end of the claw body is through the corresponding end fixed connection who props cover and cylinder, piston rod on the cylinder passes and props the cover and extend to the inboard of the claw body, and the piston rod is located the one end and the activity grip block fixed connection of the internal portion of claw, the one end department that the piston rod is located the cylinder is equipped with the cock body, the cylinder is located both ends punishment and does not communicate and have first trachea and second trachea, first trachea is connected with the cylinder through adjustable relief pressure valve, the second trachea passes through the trachea and connects and be connected with the cylinder, be equipped with the third trachea between adjustable relief pressure valve and the. The utility model discloses in, adopt the stroke be greater than with the cylinder of the claw body centre gripping distance, and apart from the cylinder that comparatively is close, when needs claw body centre gripping object, high-pressure gas is gone into to first trachea, and gaseous promotion cock body removes after getting into the cylinder to drive piston rod and activity grip block and remove, realize the centre gripping.

Description

Pneumatic clamping claw with adjustable clamping force

Technical Field

The utility model relates to a pneumatic clamping device field specifically is a pneumatic centre gripping of adjustable centre gripping dynamics is grabbed.

Background

On the production line of electronic products, all parts are driven by pneumatic parts, so that on one hand, the pneumatic parts act faster and are not easy to break down in continuous action; on the other hand, the pneumatic component only utilizes air in the using process, so that pollution is not generated, and the pneumatic component is very suitable for electronic products with certain environmental requirements.

The pneumatic clamping claw is one of important parts for transferring products, is usually driven by a specific air cylinder, and is a standard part, so that the pneumatic clamping claw can only be customized, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic centre gripping of adjustable centre gripping dynamics is grabbed to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a pneumatic centre gripping of adjustable centre gripping dynamics is grabbed, includes the claw body, props cover and cylinder, the one end of the claw body is through the corresponding end fixed connection who props cover and cylinder, piston rod on the cylinder passes and props the cover and extend to the inboard of the claw body, and the piston rod is located the one end and the activity grip block fixed connection of the internal portion of claw, the one end department that the piston rod is located the cylinder is equipped with the cock body, the cylinder is located both ends punishment and do not communicates there are first trachea and second trachea, first trachea is connected with the cylinder through adjustable relief pressure valve, the second trachea passes through the pipe connection and is connected with the cylinder, be equipped with the third trachea between relief pressure valve and the pipe connection with adjustable, be equipped with the check valve.

Furthermore, the supporting sleeve is in clearance fit with the piston rod, and a sliding sleeve is sleeved at the position where the piston rod is matched with the claw body.

Further, the first air pipe is located at one end of the air cylinder, which is far away from the claw body.

Further, the first air pipe and the second air pipe are communicated with an air supply device.

Further, the plug body is in sealing fit with the inner wall of the cylinder.

Further, the effective travel distance of the movable clamping block is smaller than that of the plug body in the cylinder.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, in order to avoid adopting the higher cost that the customization cylinder produced, so the cylinder adopts the stroke to be greater than with the claw body centre gripping distance, and the cylinder that comparatively is close, when the claw body centre gripping object of needs, high-pressure gas is gone into to first trachea, promotes the cock body and removes behind the gas entering cylinder to drive the piston rod and remove with movable grip block, realize the centre gripping.

When the centre gripping dynamics is adjusted to needs, only need the inside pressure differential that just is located the cock body both sides of adjusting cylinder can, reduce the gas pressure that first trachea got into the cylinder inside through adjustable relief pressure valve, the pressure that reduces passes through during third trachea and check valve direction third trachea, because when first trachea admits air, the second trachea is in the closure state, so gas can get into the cylinder from the trachea joint, be used for the pressure differential of balanced cock body both sides, thereby realize the adjustment of the claw body centre gripping dynamics.

Drawings

FIG. 1 is a schematic view of a pneumatic clamping claw with adjustable clamping force;

fig. 2 is a top view of a pneumatic clamping middle claw body with adjustable clamping force.

In the figure: 1. a claw body; 2. supporting sleeves; 3. a cylinder; 4. a piston rod; 5. a movable clamping block; 6. a plug body; 7. a first air pipe; 8. a second air pipe; 9. an adjustable pressure reducing valve; 10. a gas pipe joint; 11. a third air pipe; 12. a one-way valve; 13. and (4) a sliding sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the technical solution of the present invention is realized as follows:

the utility model provides a pneumatic centre gripping of adjustable centre gripping dynamics is grabbed, including the claw body 1, prop cover 2 and cylinder 3, the one end of the claw body 1 is through the corresponding end fixed connection of propping cover 2 and cylinder 3, piston rod 4 on the cylinder 3 passes and props cover 2 and extend to the inboard of the claw body 1, and piston rod 4 is located the one end and the 5 fixed connection of activity grip block of the 1 inside of the claw body, the one end department that piston rod 4 is located cylinder 3 is equipped with cock body 6, cylinder 3 is located both ends department and communicates respectively that there are first trachea 7 and second trachea 8, first trachea 7 is connected with cylinder 3 through adjustable relief pressure valve 9, second trachea 8 passes through trachea joint 10 and is connected with cylinder 3, be equipped with third trachea 11 between adjustable relief pressure valve 9 and the trachea joint 10, be equipped with check valve 12 on the third trachea 11.

In order to avoid the higher cost of adopting customization cylinder 3 to produce, so cylinder 3 adopts the stroke to be greater than with 1 centre gripping distance of the claw body, and the cylinder 3 that is comparatively close, and when needs 1 centre gripping object of claw body, high-pressure gas lets in first trachea 7, and gas promotes cock body 6 and removes after getting into cylinder 3 to drive piston rod 4 and the removal of activity grip block 5, realize the centre gripping.

When the centre gripping dynamics is adjusted to needs, only need adjust 3 inside and be located the pressure differential of cock body 6 both sides of cylinder can, reduce the gas pressure that first trachea 7 got into 3 insides of cylinder through adjustable relief pressure valve 9, the pressure that reduces passes through in third trachea 11 and the 12 direction third trachea 11 of check valve, when owing to first trachea 7 admits air, second trachea 8 is in the closure state, so gas can follow trachea joint 10 and get into cylinder 3, a pressure differential for 6 both sides of balanced cock body, thereby realize the adjustment of the 1 centre gripping dynamics of the claw body.

In addition, prop cover 2 and 4 clearance fit of piston rod, piston rod 4 and the 1 cooperation department cover of claw body are equipped with sliding sleeve 13, and sliding sleeve 13 reduces the friction of piston rod 4 and claw body 1 for the action of piston rod 4 is high-efficient quick more.

The first air pipe 7 is located at one end of the cylinder 3 far away from the claw body 1, when the first air pipe 7 is ventilated, the claw body 1 realizes clamping action, and the clamping force can be realized through the adjustable pressure reducing valve 9.

First trachea 7 and second trachea 8 all communicate with air feeder, realize the reciprocal action of cylinder 3, and when first trachea 7 ventilated, the clamping action was realized to the claw body 1, and when second trachea 8 ventilated, the claw body 1 unclamped.

The plug body 6 is in sealing fit with the inner wall of the cylinder 3, so that a certain pressure difference exists in the cylinder 3, and the clamping force of the claw body 1 can be adjusted.

The effective stroke distance of the movable clamping block 5 is smaller than that of the plug body 6 in the cylinder 3, so that the moving distance of the plug body 6 can meet the clamping distance of the movable clamping block 5, and the matching of the cylinder 3 and the claw body 1 is realized.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a pneumatic centre gripping of adjustable centre gripping dynamics is grabbed, its characterized in that, includes the claw body (1), props cover (2) and cylinder (3), the one end of the claw body (1) is through the corresponding end fixed connection who props cover (2) and cylinder (3), piston rod (4) on the cylinder (3) pass prop cover (2) and extend to the inboard of the claw body (1), and piston rod (4) are located the inside one end of claw body (1) and activity grip block (5) fixed connection, the one end department that piston rod (4) are located cylinder (3) is equipped with cock body (6), cylinder (3) are located both ends punishment and do not communicate and have first trachea (7) and second trachea (8), first trachea (7) are connected with cylinder (3) through adjustable relief pressure valve (9), second trachea (8) are connected with cylinder (3) through air pipe connector (10), a third air pipe (11) is arranged between the adjustable pressure reducing valve (9) and the air pipe joint (10), and a one-way valve (12) is arranged on the third air pipe (11).

2. The pneumatic clamping claw with adjustable clamping force of claim 1, wherein: the supporting sleeve (2) is in clearance fit with the piston rod (4), and a sliding sleeve (13) is sleeved at the matching position of the piston rod (4) and the claw body (1).

3. The pneumatic clamping claw with adjustable clamping force of claim 1, wherein: the first air pipe (7) is located at one end, far away from the claw body (1), of the air cylinder (3).

4. The pneumatic clamping claw with adjustable clamping force of claim 1, wherein: the first air pipe (7) and the second air pipe (8) are communicated with an air supply device.

5. The pneumatic clamping claw with adjustable clamping force of claim 1, wherein: the plug body (6) is in sealing fit with the inner wall of the cylinder (3).

6. The pneumatic clamping claw with adjustable clamping force of claim 1, wherein: the effective travel distance of the movable clamping block (5) is smaller than that of the plug body (6) in the cylinder (3).

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