Pneumatic mechanical gripper for circular workpiece

Abstract

The utility model belongs to the technical field of mechanical gripper equipment, and particularly relates to a pneumatic type mechanical gripper for a circular workpiece. A pneumatic type mechanical gripper for a circular workpiece comprises a main driving rod, a gripper base and a plurality of grippers. The gripper base is fixedly connected with the main driving rod, and the main driving rod is located over the gripper base. A mounting groove is formed in the bottom of the gripper base, a rotating air cylinder is arranged in the mounting groove, a rotating disc is arranged at the bottom of the rotating air cylinder, and a plurality of rotating rails are arranged on the rotating disc and evenly arranged in a spiral ring shape.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical gripper equipment technology, specifically relating to a pneumatic mechanical gripper for a circular workpiece. Background Technology

[0002] Pneumatic mechanical grippers use compressed air as a power source. The rapid inflation and deflation of the gas drives the piston movement of the cylinder, which in turn drives the opening and closing action of the gripper. It has a simple structure, low cost, and extremely fast response speed, and can complete multiple gripping operations in a short time. It is suitable for occasions with high gripping speed requirements and relatively light loads, such as the rapid sorting and assembly of electronic components.

[0003] Mechanical grippers are typically used to handle workpieces of varying sizes. Conventional mechanical grippers usually cannot adjust their minimum gripping size. To achieve the minimum gripping size, the mechanical gripper typically needs to be replaced.

[0004] In order to achieve adjustable minimum gripping size, this utility model aims to provide a pneumatic mechanical gripper for circular workpieces. Utility Model Content

[0005] The purpose of this invention is to provide a pneumatic mechanical gripper for circular workpieces to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pneumatic mechanical gripper for a circular workpiece includes a main drive rod, a gripper base, and several grippers; the gripper base is fixedly connected to the main drive rod, which is located directly above the gripper base; the bottom of the gripper base is provided with a mounting groove, a rotary cylinder is provided in the mounting groove, a rotating disk is provided at the bottom of the rotary cylinder, and several rotating tracks are provided at the rotating disk, which are evenly arranged in a spiral ring.

[0008] The bottom of the gripper base is provided with a circular enclosure, and the rotary cylinder is located on the inner side of the circular enclosure; the inner wall of the circular enclosure is provided with a track disk, the track disk including a plurality of gripper tracks, the plurality of gripper tracks being evenly arranged in a spoke-like pattern; the number of grippers is equal to the number of gripper tracks, the grippers and gripper tracks are matched one-to-one, and the grippers slide on the gripper tracks; the top of the gripper is provided with a connecting post, the connecting post passing through the rotary track;

[0009] The outer wall of the circular enclosure is provided with a number of adjustable threaded pins, the number of which is equal to the number of grippers, and the positions of the threaded pins correspond one-to-one with the positions of the grippers; the grippers are Z-shaped, and the outer wall of the grippers is provided with an adjustment baffle, and the threaded pins are located inside the adjustment baffle; the adjustment baffle is provided with an adjustment hole, and the position of the adjustment hole is directly opposite the threaded pin.

[0010] Preferably, it includes several positioning sub-rods, which are parallel to the main drive rod.

[0011] Preferably, the rotating track is arc-shaped.

[0012] Preferably, the rotating disk is provided with three rotating tracks, and correspondingly, the track disk includes three gripper tracks.

[0013] Preferably, the inner wall of the gripper is provided with a rubber pad.

[0014] Preferably, the diameter of the top crown of the threaded nail is larger than the diameter of the adjusting hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) The pneumatic mechanical gripper for a round workpiece provided by this utility model adopts a combination of a rotary cylinder, a rotating disk, a gripper track and a gripper, which can realize the gripping action of several grippers converging towards the center or dispersing from the center.

[0017] (2) The pneumatic mechanical gripper for a circular workpiece provided by this utility model has an adjustable baffle at the bend of the gripper and a threaded pin at the enclosure. By rotating the threaded pin, the length of the threaded pin extending out of the enclosure can be adjusted. When the gripper converges towards the center, the pin crown of the threaded pin presses against the adjustable baffle, limiting the maximum distance at which the gripper converges towards the center, thereby achieving the setting of the minimum gripping size. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the main drive rod and gripper base structure of this utility model.

[0020] Figure 3 This is a structural diagram of the gripper base, gripper, circular enclosure, and other components of this utility model.

[0021] Figure 4 This is a bottom view of the present invention.

[0022] In the diagram: 1. Main drive rod; 2. Gripper base; 3. Three grippers; 4. Positioning auxiliary rod; 5. Mounting slot; 6. Rotary cylinder; 7. Rotary disc; 8. Rotary track; 9. Circular enclosure; 10. Track disc; 11. Gripper track; 12. Connecting column; 13. Adjustable baffle; 14. Threaded nail; 15. Adjustment hole; 16. Rubber gasket. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] A pneumatic mechanical gripper for a circular workpiece includes a main drive rod 1, a gripper base 2, and three grippers 3. The lower end of the main drive rod 1 is fixedly connected to the gripper base 2, and the three grippers 3 are disposed in the gripper base 2.

[0025] The main drive rod 1 is used to raise and lower the mechanical gripper. Two positioning auxiliary rods 4 are also provided at the gripper base 2. The two positioning auxiliary rods 4 are parallel to the main drive rod 1. The function of the positioning auxiliary rods 4 is to prevent the gripper base 2 from rotating around the main drive rod 1 when the main drive rod 1 is moving longitudinally, thereby enhancing the stability of the gripper base 2.

[0026] The bottom of the gripper base 2 is provided with a mounting groove 5, and a rotary cylinder 6 is installed in the mounting groove 5. A rotating disk 7 is provided at the bottom of the rotary cylinder 6, and the rotary cylinder 6 drives the rotating disk 7 to rotate. Three rotating tracks 8 are provided at the rotating disk 7. The three rotating tracks 8 are arc-shaped and evenly arranged in a spiral ring.

[0027] The bottom of the gripper base 2 is also provided with a circular enclosure 9. The rotary cylinder 6 is located inside the circular enclosure 9, so the rotating disk 7 is also located on the inner wall of the circular enclosure 9. A track disk 10 is provided on the inner wall of the circular enclosure 9. The track disk 10 includes three gripper tracks 11, which are evenly arranged in a spoke-like pattern. The number of grippers 3 is equal to the number of gripper tracks 11, and each gripper 3 corresponds to one gripper track 11. The grippers 3 can slide on the gripper tracks 11. To drive the grippers 3 to move, a connecting post 12 is provided at the top of the grippers 3, and the connecting post 12 transmits to the rotating track 8. When the rotating disk 7 rotates, due to the special orientation design of the rotating track 8, the three grippers 3 can converge towards the center or disperse from the center, realizing the gripping and releasing of the three grippers 3.

[0028] The gripper 3 is Z-shaped, and an adjustable baffle 13 is provided at the bend of its outer wall. Three adjustable threaded pins 14 are located on the outer wall of the circular enclosure 9. Rotating the threaded pins 14 adjusts the length of the threaded pins extending beyond the circular enclosure 9. The positions of the threaded pins 14 correspond one-to-one with the positions of the adjustable baffles 13, with the threaded pins 14 located inside the adjustable baffles 13. To facilitate adjustment of the threaded pins 14, an adjusting hole 15 is provided on the adjustable baffle 13, positioned directly opposite the threaded pin 14. The diameter of the top of the threaded pin 14 is larger than the diameter of the adjusting hole 15, allowing the threaded pin 14 to effectively press against the adjustable baffle 13, achieving the purpose of distance limiting.

[0029] During use, a rubber pad 16 is provided on the inner wall of the gripper 3 to facilitate gripping. Driven by the rotary cylinder 6, the three grippers 3 begin to perform gripping actions. By adjusting the threaded pin 14, the maximum degree to which the three grippers 3 converge towards the center can be achieved, that is, the minimum gripping size can be set.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic mechanical gripper for circular workpieces, characterized by: It includes a main drive rod, a gripper base, and several grippers; the gripper base is fixedly connected to the main drive rod, and the main drive rod is located directly above the gripper base; the bottom of the gripper base is provided with a mounting groove, the mounting groove is provided with a rotary cylinder, the bottom of the rotary cylinder is provided with a rotating disk, and the rotating disk is provided with several rotating tracks, which are evenly arranged in a spiral ring. The bottom of the gripper base is provided with a circular enclosure, and the rotary cylinder is located on the inner side of the circular enclosure; the inner wall of the circular enclosure is provided with a track disk, the track disk including a plurality of gripper tracks, the plurality of gripper tracks being evenly arranged in a spoke-like pattern; the number of grippers is equal to the number of gripper tracks, the grippers and gripper tracks are matched one-to-one, and the grippers slide on the gripper tracks; the top of the gripper is provided with a connecting post, the connecting post passing through the rotary track; The outer wall of the circular enclosure is provided with a number of adjustable threaded pins, the number of which is equal to the number of grippers, and the positions of the threaded pins correspond one-to-one with the positions of the grippers; the grippers are Z-shaped, and the outer wall of the grippers is provided with an adjustment baffle, and the threaded pins are located inside the adjustment baffle; the adjustment baffle is provided with an adjustment hole, and the position of the adjustment hole is directly opposite the threaded pin.

2. A pneumatic mechanical gripper for circular workpieces according to claim 1, characterized in that: It includes several positioning rods, which are parallel to the main drive rod.

3. The pneumatic mechanical gripper for a circular workpiece according to claim 1, characterized in that: The rotating track is arc-shaped.

4. The pneumatic mechanical gripper for a circular workpiece according to claim 1, characterized in that: The rotating disk has three rotating tracks, and correspondingly, the track disk includes three gripper tracks.

5. The pneumatic mechanical gripper for a circular workpiece according to claim 1, characterized in that: The inner wall of the gripper is equipped with a rubber pad.

6. The pneumatic mechanical gripper for a circular workpiece according to claim 1, characterized in that: The diameter of the top crown of the threaded nail is larger than the diameter of the adjustment hole.

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