A pneumatic mechanical claw

Abstract

The present invention discloses a pneumatic mechanical claw, including an overall structure. The overall structure includes a first cover body, a second cover body and a mounting disc, and a rotating shaft is provided in the middle of the three. A rotating disc is provided below the rotating shaft. A rotating groove is formed on the rotating disc, and a slider pin is arranged in the rotating groove. The slider pin is connected to a slider, and a clamp is equipped below the slider. The structure of the present invention is simple and reasonable. A rotating groove is formed on the rotating disc, so that the movement stroke of the slider pin and the slider is larger. There is a self-locking function between the rotating groove and the slider pin. A key pin connection is adopted between the slider and the clamp, which also realizes the self-locking function. The flat end set screw adopts an internal design, and a scale mark is provided on the slider, making it more convenient and fast to adjust the clamp.

Description

Technical Field

[0001] The present invention relates to a pneumatic mechanical claw, belonging to the technical field of automation equipment. Background Art

[0002] As is well known, automation equipment plays an increasingly important role in assisting production. With the development of science and technology, the types of automation equipment are increasing, and the robotic arms and mechanical claws on automation equipment are important components that help automation equipment perform its functions.

[0003] Currently, more and more enterprises are starting to use automation equipment and adopting automatic machinery to replace manual operations in fields such as assembly and production. In the fields of automated production and assembly, mechanical claws are the most basic grasping tools. Currently, in the design of pneumatic mechanical claws, the design mechanism is mostly that the upper end of the mechanical claw is connected to a pneumatic device, and a support frame or support shaft is provided in the middle. Driven by the starting device, the fixture rotates around the support frame and support shaft. The disadvantage of this design is that the movement stroke of the fixture is small and the opening angle is limited. According to the size of the product to be processed, it is necessary to frequently replace the compatible fixture. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] To solve the above problems, the present invention proposes a pneumatic mechanical claw with a large movement stroke, a large opening range, no need for frequent replacement, and with scale markings and a self-locking function.

[0006] (II) Technical Solutions

[0007] A pneumatic mechanical claw of the present invention includes a first cover body, a second cover body, a mounting disc, and a rotating shaft provided in the middle of the three. A rotating disc is provided below the rotating shaft, and a rotating groove is opened on the rotating disc. A slider pin is adhesively connected in the rotating groove. A slider is provided below the slider pin, and a fixture is assembled below the slider at the same time.

[0008] Furthermore, an in-built flat-end set screw is used to fix between the slider and the fixture. The slider and the fixture form a concave-convex trapezoidal mating structure, and scale markings are provided on the end face of the slider facing the fixture. A self-locking structure is formed between the slider and the fixture, which is not easy to fall off and has stronger firmness. At the same time, the provided scale markings can achieve better precision control when the slider is adjusted.

[0009] Further, an air inlet hole is provided at the upper end of the second cover body. At the same time, a chamber is formed after the first cover body and the second cover body are assembled, and a sealing ring is installed at the assembly position. A rotating block and an air path dividing block are provided in the chamber. The air path dividing block is fixed at the air path dividing block positioning hole in the chamber. A spline is provided on the inner wall of the rotating block and is assembled with the rotating shaft. When compressed air enters the chamber from the air inlet hole, it pushes the rotating block, driving the rotating groove on the rotating disk to reciprocate and expand.

[0010] Further, counterbores are provided on the first cover body and the second cover body, and bearings are provided in the counterbores. A limiting groove is provided at the upper part of the rotating shaft, and a limiting ring is provided in the limiting groove. The limiting ring is stuck in the limiting groove to lock the axial positioning of the rotating disk.

[0011] Further, first bolt holes, second bolt holes, a push rod guiding cavity, and push rod fixing holes are respectively provided on the first cover body and the second cover body. First mounting bolts and second mounting bolts are respectively installed in the first bolt holes and the second bolt holes. The first mounting bolt is installed in a direct mounting manner to fix the fixture, and the second mounting bolt is installed in an inverted mounting manner to fix the first cover body, the second cover body, and the mounting disk. A push rod is provided in the push rod guiding cavity. While fixing the first cover body and the second cover body, the push rod can reciprocate in the push rod guiding cavity.

[0012] Further, a spring is also provided outside the push rod, and a nut is provided at the lower part of the spring. A thread is provided at the tail end of the push rod, and a push rod block is assembled through this thread connection, forming the pushing component of the pneumatic mechanical claw to realize the action of pushing the workpiece forward by the front push rod block.

[0013] Further, a slot is provided at the rear part of the slider, and an oil-water sealing sheet is provided in the slot, which has a sealing effect on the pneumatic mechanical claw.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention has the following beneficial effects: The structure of the present invention is simple and reasonable. A rotating groove is provided on the rotating disk, making the movement stroke of the slider pin and the slider larger. There is a self-locking function between the rotating groove and the slider pin. A key and pin connection is adopted between the slider and the fixture, also realizing a self-locking function. The flat-end set screw adopts an internal design, and a scale mark is provided on the slider, making it more convenient and fast to adjust the fixture. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is an exploded structural schematic diagram of a pneumatic mechanical claw of the present invention.

[0018] Figure 2 It is a complete structural schematic diagram of a pneumatic mechanical claw of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the internal rotating block of a pneumatic mechanical claw of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the bottom of a pneumatic mechanical claw of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the clamping part of a pneumatic mechanical claw of the present invention.

[0022] 1. Limit ring, 2. Bearing, 3. Air inlet hole, 4. First cover body, 5. Second mounting bolt, 7. Slide block pin, 8. Rotation groove, 9. Slide block, 10. Push rod, 11. Spring, 12. Push rod block, 13. Flat end set screw, 14. Fixture, 15. Rotating disc, 16. Rotating shaft, 17. Mounting disc, 18. Sealing ring, 19. Second cover body, 20. Rotating block, 21. Push rod guiding cavity, 22. First bolt hole, 23. Air path dividing block, 24. Air path dividing block positioning hole, 25. Oil-water sealing sheet, 26. Second bolt hole, 27. First mounting bolt, 28. Push rod fixing hole. Specific embodiments

[0023] A pneumatic mechanical claw as shown in the attached drawings, comprising a first cover body 4, a second cover body 19, a mounting disc 17 and a rotating shaft 16 provided in the middle of the three. A rotating disc 15 is provided at the lower part of the rotating shaft 16. A rotating groove 8 is formed on the rotating disc 15. A slider pin 7 is adhesively connected in the rotating groove 8. A slider 9 is provided at the lower part of the slider pin 7. At the same time, a fixture 14 is equipped at the lower part of the slider 9. An internal flat-end set screw 13 is provided between the slider 9 and the fixture 14 for fixation. The slider 9 and the fixture 14 are in a concave-convex trapezoidal mating structure, and a scale mark is provided on the end face of the slider 9 facing the fixture 14. An air inlet hole 3 is provided at the upper end of the second cover body 19. At the same time, a chamber is formed after the first cover body 4 and the second cover body 19 are assembled, and a sealing ring 18 is installed at the mating place. A rotating block 20 and an air path dividing block 23 are provided in the chamber. The air path dividing block 23 is fixed at the air path dividing block positioning hole 24 in the chamber. Splines are provided on the inner wall of the rotating block 20 and are assembled with the rotating shaft 16. Counterbores are provided on the first cover body 4 and the second cover body 19. Bearings 2 are provided in the counterbores. A limiting groove is formed at the upper part of the rotating shaft 16. A limiting ring 1 is provided in the limiting groove, and the limiting ring 1 is stuck in the limiting groove to lock the axial positioning of the rotating disc 15. First bolt holes 22, second bolt holes 26, a push rod guiding cavity 21 and push rod fixing holes 28 are respectively provided on the first cover body 4 and the second cover body 19. First mounting bolts 27 and second mounting bolts 5 are respectively installed in the first bolt holes 22 and the second bolt holes 26. Among them, the first mounting bolts 27 are installed in a direct mounting manner to fix the fixture, and the second mounting bolts 5 are installed in an inverted mounting manner to fix the first cover body 4, the second cover body 19 and the mounting disc 17. A push rod 10 is provided in the push rod guiding cavity 21. An external spring 11 and a nut provided at the lower part of the spring 11 are further included on the push rod 10. The tail end of the push rod 10 is provided with a thread, and a push rod block 12 is assembled through the thread connection. An oil-water sealing sheet 25 is provided in a slot opened at the rear part of the slider 9.

[0024] When inflating, the gas enters the chamber formed by the first cover body 4 and the second cover body 19. When the inflation amount reaches, it pushes the rotating block 20 to drive the key groove formed on the rotating shaft 16 to rotate. Since the key groove of the rotating shaft 16 and the rotating disc 15 are integrated, the rotating groove 8 on the rotating disc 15 is driven to rotate at the same time. At this time, the slider pin 7 moves away from the original position along with the change of the rotating groove 8, so as to achieve the large-stroke movement of the slider 9 and the fixture 14 for grasping. The structural design of the slider pin 7 and the rotating groove 8 also plays a self-locking function of power-off and air-off. At this time, according to the size of the product to be processed, the flat-end set screw 13 on the fixture 14 and the scale mark on the slider 9 can be adjusted to the corresponding fixed position. It is more convenient and fast to adjust the fixture 14.

[0025] The structure of the present invention is simple and reasonable. A rotating groove is provided on the rotating disk, which enables a larger movement stroke of the slider pin and the slider. There is a self-locking function between the rotating groove and the slider pin. A key and pin connection is adopted between the slider and the fixture, which also realizes the self-locking function. The flat-end set screw adopts an internal design, and a scale mark is provided on the slider, making it more convenient and fast to adjust the fixture.

[0026] The embodiments described above are only used to describe the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various variations and improvements made by those of ordinary skill in the art to the technical solution of the present invention shall fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. A pneumatic mechanical claw, comprising a first cover body (4), a second cover body (19), a mounting disc (17) and a rotating shaft (16) disposed in the middle of the three, characterized in that: A rotating disk (15) is provided at the lower part of the rotating shaft (16). A rotating groove (8) is formed in the rotating disk (15). A slider pin (7) is adhesively connected in the rotating groove (8). A slider (9) is provided at the lower part of the slider pin (7). Meanwhile, a fixture (14) is assembled at the lower part of the slider (9). An air inlet hole (3) is provided at the upper end of the second cover body (19). Meanwhile, a chamber is formed after the first cover body (4) and the second cover body (19) are assembled, and a sealing ring (18) is installed at the assembling position. A rotating block (20) and an air path dividing block (23) are provided in the chamber. The air path dividing block (23) is fixed at an air path dividing block positioning hole (24) in the chamber. Splines are provided on the inner wall of the rotating block (20) and are assembled with the rotating shaft (16).

2. The pneumatic mechanical claw according to claim 1, characterized in that: An in-built flat-end set screw (13) is provided between the slider (9) and the fixture (14) for fixation. A concave-convex trapezoidal mating structure is formed between the slider (9) and the fixture (14), and a scale mark is provided on the end face of the slider (9) facing the fixture (14).

3. The pneumatic mechanical claw according to claim 1, characterized in that: The first cover body (4) and the second cover body (19) are provided with counterbores. Bearings (2) are provided in the counterbores. A limiting groove is formed in the upper part of the rotating shaft (16). A limiting ring (1) is provided in the limiting groove, and the limiting ring (1) is stuck in the limiting groove to lock the axial positioning of the rotating disk (15).

4. The pneumatic mechanical claw according to claim 1, wherein: The first cover body (4) and the second cover body (19) are respectively provided with a first bolt hole (22), a second bolt hole (26), a push rod guiding cavity (21) and a push rod fixing hole (28). A first mounting bolt (27) and a second mounting bolt (5) are respectively installed in the first bolt hole (22) and the second bolt hole (26). Among them, the first mounting bolt (27) is installed in a direct mounting manner to fix the fixture, and the second mounting bolt (5) is installed in an inverted mounting manner to fix the first cover body (4), the second cover body (19) and the mounting disk (17). A push rod (10) is provided in the push rod guiding cavity (21).

5. The pneumatic mechanical claw according to claim 4, wherein: An external spring (11) is also included on the push rod (10), and a nut is provided at the lower part of the spring (11). A thread is provided at the tail end of the push rod (10), and a push rod block (12) is assembled through this thread connection.

6. The pneumatic mechanical claw according to claim 1, characterized in that: A slot is formed at the rear part of the slider (9), and an oil-water sealing sheet (25) is provided in the slot.

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