Four-axis pneumatic clamp

Abstract

The utility model provides a four-axis pneumatic clamp which comprises a lower base, an air cylinder, an upper base and a positioning plate, the lower base is arranged above the positioning plate, the upper base is arranged on the lower base, the air cylinder is arranged between the positioning plate and the lower base, a clamping assembly is arranged on the upper base, and the air cylinder is arranged on the upper base. The clamping assembly is driven by the air cylinder to do clamping or loosening motion. The pneumatic clamp is used for clamping, clamping time is shortened, multiple sets of products are clamped at a time, machining efficiency is improved, only the upper base needs to be replaced for products of different sizes, and universality is good.

Description

Technical Field

[0001] This utility model relates to the field of drilling and machining of nut products, specifically to a four-axis pneumatic clamp for drilling and machining nut products. Background Technology

[0002] Nuts typically require leak detection holes to be machined on their hexagonal surfaces. Currently, the common machining method involves clamping the nuts onto a four-axis machine using screws. This clamping method is inefficient due to its short clamping time, making it impossible to deliver large orders in a short period of time. It urgently needs improvement. Utility Model Content

[0003] The purpose of this utility model is to provide a four-axis pneumatic clamp that solves the technical problem of low efficiency in the clamping time of existing nut products drilling processing, as pointed out in the background art.

[0004] To achieve the above objectives, this utility model provides a four-axis pneumatic clamp, including a lower base, a cylinder, an upper base, and a positioning plate. The lower base is disposed above the positioning plate, and the upper base is disposed on the lower base. The cylinder is disposed between the positioning plate and the lower base. A clamping assembly is disposed on the upper base, the clamping assembly including an OK clamp and a pressure block. The OK clamp is connected to the cylinder, and the pressure block is symmetrically disposed on both sides of the OK clamp. The pressure block has V-shaped teeth on the side opposite to the OK clamp. The upper base has a V-shaped surface corresponding to the V-shaped teeth. The clamping assembly performs clamping or releasing movements under the drive of the cylinder.

[0005] Furthermore, a manual valve is provided on the positioning plate, and the manual valve is connected to the air circuit of the cylinder.

[0006] Furthermore, a connecting cylinder is provided between the cylinder and the OK clamp.

[0007] Furthermore, a support block is provided between the lower base and the positioning plate.

[0008] Compared with the prior art, the advantages of this utility model are that it shortens the clamping time by using pneumatic clamps; it can clamp multiple sets of products at once, thus improving processing efficiency; and it can accommodate products of different sizes simply by changing the base, making it highly versatile. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the state after clamping;

[0010] Figure 2 for Figure 1 A cross-sectional view along the AA direction;

[0011] Figure 3for Figure 1 A schematic diagram of the decomposition process;

[0012] Figure 4 This is a schematic diagram of the structure of the pressure block in this utility model;

[0013] Figure 5 This is a schematic diagram of the upper base in this utility model;

[0014] In the diagram: 1. Lower base; 2. Nut; 3. Cylinder rod; 4. Cylinder; 5. OK clamp; 6. Pressure block; 7. Upper base; 8. Positioning plate; 9. Support block; 10. Pin; 11. Connecting cylinder; 12. Manual valve; 13. Connecting block; 14. V-shaped tooth; 15. V-shaped surface; 16. Clamping groove; 17. Upper air inlet; 18. Lower air inlet; 19. Handle; 20. Main air inlet; 21. First air outlet; 22. Second air outlet; 23. Muffler. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings.

[0022] like Figure 1-3 As shown, the four-axis pneumatic clamp of this utility model includes a lower base 1, a cylinder 4, an upper base 7, and a positioning plate 8. The lower base 1, upper base 7, and positioning plate 8 are elongated, and the positioning plate 8 is used to connect to a four-axis machining table. The cylinder 4 is mounted on the positioning plate 8, and multiple sets of cylinders 4 can be provided. In this embodiment, there are two sets of cylinders 4. The lower base 1 is mounted on the cylinder 4, and the upper base 7 is mounted on the lower base 1. The lower base 1 is connected to the positioning plate 8 by hexagonal screws, and the cylinder 4 is confined therein. Preferably, a support block 9 is also provided between the lower base 1 and the positioning plate 8. The support block 9 is located outside the cylinder 4 and is fixedly connected to the lower base 1 and the positioning plate 8 by hexagonal screws. The support block 9 is used to support the lower base 1 and prevent the cylinder 4 from being damaged by pressure.

[0023] The upper base 7 is fixedly connected to the lower base 1 by pins 10. A clamping assembly is provided on the upper base 7, including an OK clamp 5 and pressure blocks 6. The OK clamp 5 is a double-sided M8 type, located in the clamping groove 16 of the upper base 7. The pressure blocks 6 are symmetrically connected to both sides of the OK clamp 5 by screws. The wedge of the OK clamp 5 is connected to the cylinder rod 3 of the cylinder 4 by screws. If the cylinder rod 3 does not extend sufficiently, a connecting sleeve 11 can be provided between the OK clamp 5 and the cylinder rod 4 (see attached diagram). Figure 2 As shown, the connecting cylinder 11 has a hollow structure and can function as an extension rod. When the cylinder 4 is vented, the cylinder rod 3 moves in and out of the cylinder 4 under the action of air pressure, which drives the wedge block of the OK clamp 5 to move up and down. The wedge block pushes the main body to move left and right, and the main body in turn drives the pressure block 6 to clamp or loosen. Preferably, the pressure block 6 is provided with V-shaped teeth 14 on the side away from the OK clamp, and the upper base 7 is provided with V-shaped surfaces 15 corresponding to the V-shaped teeth 14. See the attached diagram for details. Figure 4 and attached Figure 5 The V-shaped surface 15 is located at both ends of the clamping groove 16. During machining, the V-shaped surface 15 and the V-shaped teeth 14 together clamp the nut 2.

[0024] A manual valve 12 is also provided on one end of the positioning plate 8, which is attached to the appendix. Figure 1 A connecting block 13 is located below the manual valve 12, adjacent to the support block 9. The manual valve 12 and the connecting block 13 are fixed to the positioning plate 8 with screws. The manual valve 12 is a two-position five-way directional valve, such as the 4H210-06 type manual valve. The main air inlet 20 on the manual valve 12 is connected to the air source through an air pipe and an air pipe connector. The first air outlet 21 is connected to the upper air inlet 17 of the cylinder 4 through a three-way connector and an air pipe. The second air outlet 22 is connected to the lower air inlet 18 of the cylinder 4 through another three-way connector and an air pipe. The manual valve 12 is used to control the air supply status of the cylinder 4. To avoid excessive airflow noise during air supply, a silencer 23 is also provided on the manual valve 12, with silencers 23 located on both sides of the main air inlet 20.

[0025] The working principle of this utility model is as follows: First, fix the positioning plate 8 on the machining table of the four-axis machine. Place the nut 2 in the clamping groove 16 of the upper base 7, so that the six sides of the nut 2 abut against the V-shaped surface 15. Move the handle 19 of the manual valve 12 so that the first air outlet 21 of the manual valve 12 is connected to the upper air inlet 17 of the cylinder 4. At this time, the cylinder rod 3 moves downward under the action of air pressure, and at the same time drives the wedge of the OK clamp 5 to move downward. The wedge pushes the pressure block 6 to move horizontally, and the V-shaped teeth 14 of the pressure block 6 abut against the other six sides of the nut 2, thereby clamping the nut 2. Start the four-axis machine to drill. After drilling is completed, move the handle 19 in the opposite direction so that the second air outlet 22 of the manual valve 12 is connected to the lower air inlet 18 of the cylinder 4. At this time, the cylinder rod 3 moves upward under the push of air pressure, and at the same time drives the wedge of the OK clamp 5 to move upward. The pressure block 6 moves horizontally to loosen the nut 2, and the nut 2 can be removed. This invention is simple to operate; one cylinder can drive two workstations to clamp simultaneously, improving processing efficiency. When processing nuts of different sizes, simply replace the upper base 7; it has good versatility.

[0026] The basic principles and advantages of this utility model have been described above. For those skilled in the art, the above embodiments are merely illustrative of the technical solutions of this utility model and not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some or all of the technical features by reading this specification. Any obvious substitutions are within the protection scope of this utility model without departing from its concept.

Claims

1. A four-axis pneumatic clamp, characterized in that, The device includes a lower base (1), a cylinder (4), an upper base (7), and a positioning plate (8). The lower base (1) is located above the positioning plate (8), and the upper base (7) is located on the lower base (1). The cylinder (4) is located between the positioning plate (8) and the lower base (1). The upper base (7) is provided with a clamping assembly, which includes an OK clamp (5) and a pressure block (6). The OK clamp (5) is connected to the cylinder (4). The pressure block (6) is symmetrically arranged on both sides of the OK clamp (5). The pressure block (6) has a V-shaped tooth (14) on the side away from the OK clamp (5). The upper base (7) is provided with a V-shaped surface (15) corresponding to the V-shaped tooth (14). The clamping assembly performs clamping or releasing movements under the drive of the cylinder (4).

2. A four-axis pneumatic clamp according to claim 1, characterized in that, The positioning plate (8) is provided with a manual valve (12), which is connected to the air circuit of the cylinder (4).

3. A four-axis pneumatic clamp according to claim 2, characterized in that, A connecting cylinder (11) is provided between the cylinder (4) and the OK clamp (5).

4. A four-axis pneumatic clamp according to claim 3, characterized in that, A support block (9) is provided between the lower base (1) and the positioning plate (8).

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