CN219054414U

CN219054414U - Pneumatic clamping mechanism

Info

Publication number: CN219054414U
Application number: CN202223589439.1U
Authority: CN
Inventors: 吴杰都
Original assignee: Guangzhou Panuo Automation Equipment Co ltd
Current assignee: Guangzhou Panuo Automation Equipment Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-23
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a pneumatic clamping mechanism, which relates to the technical field of clamping devices and comprises a double-shaft double-acting cylinder, wherein an upper piston rod and a lower piston rod are arranged at the output end of the double-shaft double-acting cylinder. The pneumatic clamping mechanism is reasonable in structure, the upper piston rod and the lower piston rod move towards the clamping jaw through controlling an external air source, the movable block is driven to move, the movable block rotates through the connecting key, the connecting key is connected with the movable block through the pin, the other side of the connecting key drives the bottoms of the movable clamp and the fixed clamp to be close to the inner side, so that the clamping jaw is opened, otherwise, the bottoms of the movable clamp and the fixed clamp on the other side of the connecting key are close to the outer side, the clamping jaw is clamped, the clamping jaw can deeply clamp a specific workpiece in a smaller space, when the air is broken, the effect same as that of the air of the first air port is achieved due to the action of the spring, and the pneumatic clamping mechanism can achieve a clamping state under the condition that the air source is not provided.

Description

Pneumatic clamping mechanism

Technical Field

The utility model relates to the technical field of clamping devices, in particular to a pneumatic clamping mechanism.

Background

The pneumatic clamping jaw is also called a pneumatic finger and clamp cylinder, is used for clamping or grabbing a workpiece by using compressed air as power, and is a common pneumatic element in automatic equipment; the most widely used pneumatic clamping jaw is Y-shaped clamping finger and flat clamping finger at present, but the pneumatic clamping jaw cannot deeply clamp a specific workpiece in a smaller space, and under the condition that the equipment suddenly breaks off gas, the pneumatic clamping jaw cannot be still in a clamping state to ensure that the workpiece cannot fall off, so that the pneumatic clamping jaw is disclosed to meet the demands of people.

Disclosure of Invention

An object of the present application is to provide a pneumatic clamping mechanism, so as to solve the problems set forth in the background art.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a pneumatic fixture, includes biax compound cylinder, upper piston rod and lower piston rod are installed to biax compound cylinder's output, lower piston rod's bottom pass through reset assembly with biax compound cylinder's bottom is connected, the mount pad is installed at biax compound cylinder's top, two connecting blocks are installed on the top of mount pad, the through-hole has been seted up at the top of mount pad, upper piston rod's output runs through the through-hole and has the movable block through first bolted connection, two the connecting block all pass through the second bolt with biax compound cylinder's top is connected, two the both sides of mount pad all are provided with the apron, two the apron all pass through four third bolts with two the lateral part of mount pad is connected, two install three rotation subassembly on the apron, wherein two rotation subassembly are connected with the fixed clamp, remaining rotation on the rotation subassembly is installed movable clamp with be provided with the connecting key between the movable clamp, the both ends of connecting key all pass through respectively with the movable clamp the rotation pin is connected with the movable clamp.

Preferably, two avoidance holes are formed in the top of the mounting seat, and one ends of the two second bolts penetrate through the two avoidance holes respectively.

Preferably, the dual-shaft compound cylinder is provided with a first air port and a second air port, the second air port is far away from the fixed clamp, and the first air port is close to the fixed clamp.

Preferably, four mounting holes are formed in the side portion of the double-shaft resetting cylinder, and the four mounting holes, the first air port and the second air port are located on different side faces of the double-shaft resetting cylinder.

Preferably, the reset component comprises an adjusting nut fixedly mounted at the bottom end of the lower piston rod, a fixing nut is connected to the top of the adjusting nut through a spring, threads of the fixing nut are sleeved on the lower piston rod, and the spring is movably sleeved on the lower piston rod.

Preferably, the rotating assembly comprises a hinge screw, two self-locking nuts are sleeved on the hinge screw in a threaded manner, and the side parts, close to each other, of the two self-locking nuts are respectively abutted against the side parts, far away from each other, of the two cover plates.

Preferably, the lateral part of the fixed clamp is provided with two first connecting holes, two first connecting holes are parallel to the central axis of the adjusting nut, two second connecting holes are respectively formed in the lateral parts of the two cover plates, the hinged screw connected with the fixed clamp is located in the corresponding two second connecting holes and the first connecting holes, the lateral part of the movable clamp, which is close to the fixed clamp, is provided with a protruding block, the lateral part of the protruding block is provided with a first driving hole, two lateral parts of the two cover plates, which are close to each other, are provided with second driving holes, and the hinged screw connected with the movable clamp is located in the two second driving holes and the first driving hole.

In summary, the utility model has the technical effects and advantages that:

the clamping jaw is reasonable in structure, the upper piston rod and the lower piston rod move towards the clamping jaw by controlling an external air source, the movable block is driven to move, the movable block rotates through the connecting key, the connecting key is connected with the movable block through the pin, the other side of the connecting key drives the bottoms of the movable clamp and the fixed clamp to be close to the inner side, so that the clamping jaw is opened, otherwise, the bottoms of the movable clamp and the fixed clamp on the other side of the connecting key are close to the outer side, the clamping jaw is clamped, the clamping jaw can deeply clamp a specific workpiece in a smaller space, when the air is broken, the effect same as that of the air of the first air port is achieved due to the action of the spring, and the clamping mechanism can achieve a clamping state under the condition that the air source is not provided.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded perspective view of an embodiment of the present application;

FIG. 2 is a perspective view of an embodiment of the present application;

FIG. 3 is a schematic perspective view of a cover plate lacking one embodiment of the present application;

fig. 4 is a clamping and unclamping diagram of an embodiment of the present application.

In the figure: 1. double-shaft double-acting type air cylinder; 2. a fixed clamp; 3. a movable clamp; 4. a movable block; 5. a mounting base; 6. a connecting key; 7. a cover plate; 8. a pin; 9. a hinge screw; 10. a self-locking nut; 11. a first bolt; 12. a second bolt; 13. a third bolt; 14. a fixing nut; 15. an adjusting nut; 16. a spring; 17. a mounting hole; 18. a first gas port; 19. a second gas port; 20. an upper piston rod; 21. and a lower piston rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to a pneumatic clamping mechanism shown in fig. 1-4, including biax compound cylinder 1, upper piston rod 20 and lower piston rod 21 are installed to biax compound cylinder 1's output, lower piston rod 21's bottom is connected with biax compound cylinder 1's bottom through reset assembly, mount pad 5 is installed at biax compound cylinder 1's top, two connecting blocks are installed on mount pad 5's top, the through-hole has been seted up at mount pad 5's top, upper piston rod 20's output runs through the through-hole and is connected with movable block 4 through first bolt 11, two connecting blocks are all connected with biax compound cylinder 1's top through second bolt 12, two both sides of two mount pad 5 are provided with apron 7, two apron 7 are all connected with the lateral part of two mount pads 5 through four third bolts 13, install three rotation assemblies on two apron 7, wherein two rotation assemblies are connected with fixed clamp 2, install movable clamp 3 on the rotation assembly of the surplus, be provided with connecting key 6 between movable clamp 3 and the movable clamp 4, the both ends of connecting key 6 are all connected with movable clamp 3's rotation respectively through pin 8.

By the above structure: through controlling external air source for upper piston rod 20 and lower piston rod 21 are to clamping jaw direction activity, and then drive movable block 4 and remove, and movable block 4 passes through connecting key 6 and rotates, and connecting key 6 passes through to be connected through pin 8 with movable block 4, makes connecting key 6 opposite side drive movable clamp 3 and fixed clamp 2 bottom inwards draw close, thereby makes the clamping jaw open, on the contrary, makes connecting key 6 opposite side movable clamp 3 and fixed clamp 2 bottom outwards draw close, thereby makes the clamping jaw press from both sides tightly, and the clamping jaw can go deep into the interior special work piece of clamping of less space.

Two avoidance holes are formed in the top of the mounting seat 5, and one ends of the two second bolts 12 penetrate through the two avoidance holes respectively. Avoidance can be performed through the avoidance holes.

The double-shaft compound cylinder 1 is provided with a first air port 18 and a second air port 19, the second air port 19 is far away from the fixed clamp 2, and the first air port 18 is close to the fixed clamp 2. The first air port 18 and the second air port 19 can perform air intake, and the clamping mechanism is controlled by controlling the air intake in cooperation with the electromagnetic valve.

Four mounting holes 17 are formed in the side portion of the double-shaft double-acting cylinder 1, and the four mounting holes 17, the first air port 18 and the second air port 19 are located on different side faces of the double-shaft double-acting cylinder 1. Can install fixedly according to four mounting holes 17, install on robot, frock clamp or tongs according to own needs.

The reset assembly comprises an adjusting nut 15 fixedly arranged at the bottom end of a lower piston rod 21, the top of the adjusting nut 15 is connected with a fixing nut 14 through a spring 16, the fixing nut 14 is in threaded sleeve joint with the lower piston rod 21, and the spring 16 is movably sleeved on the lower piston rod 21. When the air is cut off, the spring 16 which is originally compressed stretches back due to the action of the spring 16, so that the upper piston rod 20 and the lower piston rod 21 are driven to move in the opposite direction of the clamping jaw, namely, the same effect as when the first air port 18 is in air is achieved, and the clamping mechanism can be in a clamping state under the condition that an air source is not provided.

The rotating assembly comprises a hinging screw 9, two self-locking nuts 10 are sleeved on the hinging screw 9 in a threaded manner, and the side parts of the two self-locking nuts 10, which are close to each other, are respectively abutted against the side parts of the two cover plates 7, which are far away from each other. The fixed clamp 2 and the movable clamp 3 are convenient to connect through the arrangement of the rotating assembly.

Two first connecting holes are formed in the side portion of the fixed clamp 2, the two first connecting holes are parallel to the central axis of the adjusting nut 15, two second connecting holes are formed in the side portion, close to each other, of the two cover plates 7, the hinge screw 9 connected with the fixed clamp 2 is located in the corresponding two second connecting holes and the first connecting holes, the side portion, close to the fixed clamp 2, of the movable clamp 3 is provided with a protruding block, the side portion of the protruding block is provided with a first driving hole, the side portion, close to each other, of the two cover plates 7 is provided with a second driving hole, and the hinge screw 9 connected with the movable clamp 3 is located in the two second driving holes and the first driving hole. This has the advantage that the fixed jaw 2 is fixed in position and the movable jaw 3 can be rotated to facilitate clamping.

The working principle of the utility model is as follows:

the second air port 19 of the double-shaft double-acting type air cylinder 1 is controlled to enable the upper piston rod 20 and the lower piston rod 21 to move towards the clamping jaw direction by controlling an external air source, the movable block 4 is driven to move, the movable block 4 rotates through the connecting key 6, the connecting key 6 is connected with the movable block 4 through the pin 8, the other side of the connecting key 6 drives the bottoms of the movable clamp 3 and the fixed clamp 2 to be close to the inner side, so that the clamping jaw is opened, the spring 16 deforms, otherwise, the first air port 18 of the double-shaft double-acting type air cylinder 1 is enabled to enable the bottoms of the movable clamp 3 and the fixed clamp 2 on the other side of the connecting key 6 to be close to the outer side, so that the clamping jaw is clamped, when the air is broken, due to the action of the spring 16, the compressed spring 16 can stretch back, the upper piston rod 20 and the lower piston rod 21 are driven to move towards the opposite direction of the clamping jaw, namely the effect same as that when the air source is enabled to be in the air supply of the first air port 18, and the clamping mechanism can realize the clamping state under the condition that no air source is provided.

Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present utility model can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present utility model should be included in the scope of the present utility model.

Claims

1. Pneumatic fixture, including biax complex type cylinder (1), its characterized in that: the output of biax is compound type cylinder (1) installs last piston rod (20) and lower piston rod (21), the bottom of lower piston rod (21) pass through reset assembly with the bottom of biax is compound type cylinder (1) is connected, mount pad (5) are installed at the top of biax is compound type cylinder (1), two connecting blocks are installed on the top of mount pad (5), the through-hole has been seted up at the top of mount pad (5), the output of last piston rod (20) runs through the through-hole and is connected with movable block (4) through first bolt (11), two the connecting block all pass through second bolt (12) with the top of biax is compound type cylinder (1), two the both sides of mount pad (5) all are provided with apron (7), two apron (7) all pass through four third bolts (13) and two the lateral part of mount pad (5) is connected, installs three rotation components on apron (7), and wherein two rotation components are connected with remaining fixed rotation component (2), on the rotation component (3) are connected with movable block (4), clamp (6) are connected with movable block (6) respectively through the movable block (6), clamp (6) are connected with movable block (6) respectively, and the movable block is connected with each other The side parts of the movable clamp (3) are rotationally connected.

2. The pneumatic clamping mechanism of claim 1, wherein: two avoidance holes are formed in the top of the mounting seat (5), and one ends of the two second bolts (12) penetrate through the two avoidance holes respectively.

3. The pneumatic clamping mechanism of claim 1, wherein: the double-shaft resetting cylinder (1) is provided with a first air port (18) and a second air port (19), the second air port (19) is far away from the fixed clamp (2), and the first air port (18) is close to the fixed clamp (2).

4. A pneumatic clamping mechanism as claimed in claim 3, wherein: four mounting holes (17) are formed in the side portions of the double-shaft-type cylinder (1), and the four mounting holes (17) are located on different side faces of the double-shaft-type cylinder (1) together with the first air port (18) and the second air port (19).

5. The pneumatic clamping mechanism of claim 1, wherein: the resetting component comprises an adjusting nut (15) fixedly arranged at the bottom end of the lower piston rod (21), the top of the adjusting nut (15) is connected with a fixing nut (14) through a spring (16), the fixing nut (14) is in threaded sleeve joint with the lower piston rod (21), and the spring (16) is in movable sleeve joint with the lower piston rod (21).

6. The pneumatic clamping mechanism of claim 5, wherein: the rotating assembly comprises a hinging screw (9), two self-locking nuts (10) are sleeved on the hinging screw (9) in a threaded mode, and side parts, close to each other, of the two self-locking nuts (10) are respectively abutted to side parts, far away from each other, of the two cover plates (7).

7. The pneumatic clamping mechanism of claim 6, wherein: two first connecting holes are formed in the side portions of the fixed clamp (2), the two first connecting holes are parallel to the central axis of the adjusting nut (15), two second connecting holes are formed in the side portions, close to each other, of the cover plate (7), the hinge screws (9) connected with the fixed clamp (2) are located in the corresponding two second connecting holes and the first connecting holes, the side portions, close to the fixed clamp (2), of the movable clamp (3) are provided with protruding blocks, the side portions of the protruding blocks are provided with first driving holes, the side portions, close to each other, of the cover plate (7) are provided with second driving holes, and the hinge screws (9) connected with the movable clamp (3) are located in the two second driving holes and the first driving holes.