CN214924557U

CN214924557U - Pneumatic finger of adjustable stroke

Info

Publication number: CN214924557U
Application number: CN202121436410.2U
Authority: CN
Inventors: 杨立军
Original assignee: Zhuji Yida Machinery Co ltd
Current assignee: Zhuji Yida Machinery Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-11-30
Anticipated expiration: 2031-06-25

Abstract

The utility model provides a pneumatic finger of adjustable stroke, including having mesoporous assembly seat, adorn the cylinder admittedly on the bottom surface of assembly seat, the telescopic link of cylinder freely stretches into the mesopore of assembly seat, link firmly the connecting rod on the telescopic link, the both sides of assembly seat are the articulated centre gripping subassembly of symmetry, two centre gripping subassemblies are located the both sides of connecting rod respectively, two centre gripping subassembly swing joint are on the connecting rod, the connecting rod passes through bolt assembly stroke locating plate, the screw post is established to the epirelief on the stroke locating plate, insert product set screw in the screw post, product set screw forms screw-thread fit with the screw post and is connected, product set screw has product location head, product location head is located between two centre gripping subassemblies. The utility model can freely adjust the opening stroke; when the workpiece needs to be accurately positioned, a positioning plate does not need to be additionally arranged; the characteristics of durability and flexibility are considered, the use cost is greatly reduced in the aspect of later maintenance, and good use experience is brought to a user.

Description

Pneumatic finger of adjustable stroke

Technical Field

The utility model belongs to the technical field of machinery, a pneumatic finger of centre gripping frock, especially adjustable stroke is related to.

Background

The pneumatic finger is also called a pneumatic clamping jaw or a pneumatic clamping finger, and is an executing device which uses compressed air as power and is used for clamping or grabbing a workpiece. The clamp can be generally divided into Y-shaped clamp fingers and flat clamp fingers according to styles, and the clamp has the main function of replacing the grabbing work of people, so that the production efficiency and the working safety can be effectively improved.

The market universal pneumatic finger has the following 4 problems in the automation field:

1. the whole pneumatic finger needs to be replaced due to external force impact, and the price is high;

2. the opening stroke cannot be adjusted, so that inconvenience is brought to automatic debugging;

3. when a product is clamped, if the product needs to be accurately positioned, a positioning plate needs to be additionally arranged, and the additional arrangement operation is complex, so that unnecessary manual labor is brought;

4. after the cylinder block is abraded, the whole pneumatic finger needs to be replaced, and the use cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided one kind through setting up dual screw-thread fit structure to realize the pneumatic finger of stroke regulation and control and the adjustable stroke of location regulation and control.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a pneumatic finger of adjustable stroke, is including having mesoporous assembly seat, adorn the cylinder admittedly on the bottom surface of assembly seat, the telescopic link of cylinder freely stretches into the mesopore of assembly seat, link firmly the connecting rod on the telescopic link, the both sides of assembly seat are the articulated centre gripping subassembly of symmetry, two the centre gripping subassembly is located respectively the both sides of connecting rod, two centre gripping subassembly swing joint in on the connecting rod, the connecting rod passes through bolt assembly stroke locating plate, the screw hole post is established to the epirelief on the stroke locating plate, insert the product set screw in the screw hole post, the product set screw with the screw hole post forms screw-thread fit and connects, the product set screw has the product location head, the product location head is located two between the centre gripping subassembly.

In the pneumatic finger with the adjustable stroke, the bolt assembly comprises a stroke positioning screw and a locking nut, a first threaded hole is formed in the connecting rod, the stroke positioning screw penetrates into the first threaded hole to form threaded assembly, a second threaded hole is formed in the stroke positioning plate, the stroke positioning screw penetrates through the second threaded hole to form threaded assembly, and the locking nut is sleeved with the stroke positioning screw and abuts against the stroke positioning plate to form threaded fastening connection.

In the pneumatic finger with the adjustable stroke, the clamping assembly comprises a swing arm and a clamping jaw which are fixedly connected, the swing arm is an L-shaped arm body, a hinge hole is formed in an L-shaped corner of the swing arm, a cylindrical shaft penetrates through the hinge hole, and the cylindrical shaft is hinged to the assembling seat; a waist groove is formed in the L-shaped cross arm of the swing arm, a cylindrical pin penetrates into the waist groove, and the cylindrical pin is fixed on the connecting rod.

In the above pneumatic finger with the adjustable stroke, the clamping jaw comprises an installation plate and a chuck, the installation plate is fixedly connected with the swing arm through a screw, and the chuck is provided with a concave arc type clamping surface.

In the stroke-adjustable pneumatic finger, the product positioning head is located between the two clamping jaws.

In the pneumatic finger with the adjustable stroke, the connecting rod comprises a cylinder and a U-shaped body which are fixedly connected into a whole, a mounting hole is formed in the cylinder, and the telescopic rod penetrates through the mounting hole to form the fixed connection.

In the above-mentioned pneumatic finger with adjustable stroke, the cylinder is specifically an SDA cylinder.

Compared with the prior art, the pneumatic finger with the adjustable stroke has the following advantages:

1. a thread matching structure for stroke adjustment is designed, so that the opening stroke can be freely adjusted;

2. a thread matching structure for positioning adjustment is designed, so that a positioning plate does not need to be additionally arranged when a workpiece needs to be accurately positioned;

3. the characteristics of durability and flexibility are considered, the use cost is greatly reduced in the aspect of later maintenance, and good use experience is brought to a user.

Drawings

Figure 1 is an assembled perspective view of the present stroke adjustable pneumatic finger.

Fig. 2 is an exploded perspective view of the present adjustable stroke pneumatic finger.

In the figure, 1, cylinder; 2. assembling a seat; 3. a connecting rod; 4. swinging arms; 5. a cylindrical shaft; 6. a cylindrical pin; 7. a clamping jaw; 8. a stroke positioning plate; 9. a stroke positioning screw; 10. locking the nut; 11. a product positioning screw; 12. and (5) a workpiece.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the stroke-adjustable pneumatic finger comprises an assembly seat 2 with a middle hole, a cylinder 1 is fixedly installed on the bottom surface of the assembly seat 2, a telescopic rod of the cylinder 1 freely extends into the middle hole of the assembly seat 2, a connecting rod 3 is fixedly connected onto the telescopic rod, two sides of the assembly seat 2 are symmetrically hinged to clamping components, the two clamping components are respectively located on two sides of the connecting rod 3, the two clamping components are movably connected onto the connecting rod 3, the connecting rod 3 is assembled with a stroke positioning plate 8 through a bolt component, a threaded column is convexly arranged on the stroke positioning plate 8, a product positioning screw 11 is inserted into the threaded column, the product positioning screw 11 is in threaded fit connection with the threaded column, the product positioning screw 11 is provided with a product positioning head, and the product positioning head is located between the two clamping components.

This pneumatic finger of adjustable stroke adopts high strength alloy steel to make pneumatic finger's assembly seat 2, redesign 4 stress position of swing arm and increase

cylindric spindle

5, 6 sizes of cylindric lock, makes it be difficult to damage when receiving external force striking.

The bolt assembly comprises a stroke positioning screw 9 and a locking nut 10, a first threaded hole is formed in the connecting rod 3, the stroke positioning screw 9 penetrates the first threaded hole to form threaded assembly, a second threaded hole is formed in the stroke positioning plate 8, the stroke positioning screw 9 penetrates the second threaded hole to form threaded assembly, and the locking nut 10 is sleeved with the stroke positioning screw 9 and abuts against the stroke positioning plate 8 to form threaded fastening connection.

The clamping assembly comprises a swing arm 4 and a clamping jaw 7 which are fixedly connected, the swing arm 4 is an L-shaped arm body, a hinge hole is formed in the L-shaped corner of the swing arm 4, a cylindrical shaft 5 penetrates into the hinge hole, and the cylindrical shaft 5 is hinged to the assembly base 2; a waist groove is formed in the L-shaped cross arm of the swing arm 4, a cylindrical pin 6 penetrates into the waist groove, and the cylindrical pin 6 is fixed on the connecting rod 3.

The clamping jaw 7 comprises a mounting plate and a chuck, the mounting plate is fixedly connected with the swing arm 4 through a screw, and the chuck is provided with a concave arc-shaped clamping surface.

The product positioning head is located between the two jaws 7.

The connecting rod 3 comprises a cylinder and a U-shaped body which are fixedly connected integrally, a mounting hole is formed in the cylinder, and the telescopic rod penetrates through the mounting hole to form the fixed connection. The both sides wall of the U-shaped body is provided with an assembly hole, and the waist groove of the swing arm 4 and the assembly hole form a movable connection through a cylindrical pin 6.

The cylinder 1 is specifically an SDA cylinder. The design has used general SDA cylinder, only need when cylinder 1 damages change alone can, need not change other moving parts to reduce the maintenance cost.

The action method of the stroke-adjustable pneumatic finger is that when the piston of the cylinder 1 drives the connecting rod 3 to do reciprocating motion, the connecting rod 3 is pushed forwards to drive the swing arms 4 and the clamping jaws 7 located on two sides to rotate and open around a hinge point through the cylindrical pin 6 and the waist groove, the connecting rod 3 is pulled backwards to drive the swing arms 4 and the clamping jaws 7 located on two sides to rotate and close around the hinge point, so that the workpiece 12 is grabbed, after the clamping jaws 7 grab the workpiece 12, the round head of the workpiece 12 abuts against the product positioning head of the product positioning screw 11. The position of the stroke positioning plate 8 is adjusted by screwing the stroke positioning screw 9 and the locking nut 10 so as to correspondingly regulate and control the opening degree of the swing arms 4 and the clamping jaws 7 on two sides, thereby achieving an ideal opening position. The extension length of the product positioning head is adjusted by screwing the product positioning screw 11, so that the clamping position of the clamping workpiece 12 is regulated and controlled, and an external manipulator can accurately control the assembly position of a product through the pneumatic finger.

2. a thread matching structure for positioning adjustment is designed, so that a positioning plate does not need to be additionally arranged when the workpiece 12 needs to be accurately positioned;

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the cylinder 1 is used more herein; an assembly base 2; a connecting rod 3; a swing arm 4; a cylindrical shaft 5; a cylindrical pin 6; a clamping jaw 7; a stroke positioning plate 8; a stroke positioning screw 9; a lock nut 10; a product set screw 11; workpiece 12, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a pneumatic finger of adjustable stroke, is including having mesoporous assembly seat, its characterized in that, adorn the cylinder admittedly on the bottom surface of assembly seat, the telescopic link of cylinder freely stretches into the mesopore of assembly seat, link firmly the connecting rod on the telescopic link, the both sides of assembly seat are the articulated centre gripping subassembly of symmetry, two the centre gripping subassembly is located respectively the both sides of connecting rod, two centre gripping subassembly swing joint in on the connecting rod, the connecting rod passes through bolt assembly stroke locating plate, the screw hole post is established to the protruding stroke locating plate, insert the product set screw in the screw hole post, the product set screw with the screw hole post forms screw-thread fit and is connected, the product set screw has the product location head, the product location head is located two between the centre gripping subassembly.

2. The stroke-adjustable pneumatic finger as claimed in claim 1, wherein the bolt assembly comprises a first stroke positioning screw and a locking nut, the connecting rod is provided with a first threaded hole, the first stroke positioning screw penetrates through the first threaded hole to form a threaded assembly, the stroke positioning plate is provided with a second threaded hole, the second stroke positioning screw penetrates through the second threaded hole to form a threaded assembly, and the locking nut is sleeved with the stroke positioning screw and abuts against the stroke positioning plate to form a threaded fastening connection.

3. The stroke-adjustable pneumatic finger according to claim 1, wherein the clamping assembly comprises a swing arm and a clamping jaw which are fixedly connected, the swing arm is an L-shaped arm body, a hinge hole is formed in an L-shaped corner of the swing arm, a cylindrical shaft penetrates through the hinge hole, and the cylindrical shaft is hinged to the assembling seat; a waist groove is formed in the L-shaped cross arm of the swing arm, a cylindrical pin penetrates into the waist groove, and the cylindrical pin is fixed on the connecting rod.

4. The adjustable stroke pneumatic finger according to claim 3, wherein the clamping jaw comprises a mounting plate and a clamping head, the mounting plate is fixedly connected with the swing arm through a screw, and the clamping head has a concave arc type clamping surface.

5. The adjustable stroke pneumatic finger of claim 3 wherein said product positioning head is located between two of said jaws.

6. The pneumatic finger with the adjustable stroke according to claim 1, wherein the connecting rod comprises a cylinder body and a U-shaped body which are fixedly connected with each other integrally, a mounting hole is formed in the cylinder body, and the telescopic rod penetrates through the mounting hole to form the fixed connection.

7. The stroke adjustable pneumatic finger according to claim 1, characterized in that the cylinder is in particular an SDA cylinder.