A pneumatic chuck assembly

Abstract

This utility model discloses a pneumatic chuck assembly, including a mounting base with a through hole in the middle for a square tube to pass through. A rotating connecting plate is rotatably connected to one side of the mounting base, and a slide rod assembly is located on one side of the rotating connecting plate. Two sets of clamping roller assemblies are mounted on the slide rod assembly, arranged vertically. Two sets of cylinder clamping drive components are located on one side of the rotating connecting plate, driving the opening and closing of the two sets of clamping roller assemblies. The rotating connecting plate has two air holes, and the air inlet and outlet of the cylinder clamping drive components are connected to one side of the air holes via conduits. Two cylinder mounting seats are located on one side of the mounting base. This pneumatic chuck assembly has a simple structure and is easy to operate. It can automatically clamp square tubes during laser cutting and avoids air pipe entanglement when the square tube rotates, making it more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic chuck technology, specifically a pneumatic chuck assembly. Background Technology

[0002] Stainless steel square tubes are square-section tubes made from stainless steel. Due to their excellent corrosion resistance, high strength, and aesthetics, they are widely used in construction, machinery, decoration, chemical and other fields. When processing stainless steel square tubes, a laser cutting device is needed to cut the tubes, resulting in smooth cut edges. However, existing square tube cutting methods require not only feeding the workpiece forward but also flipping it over to cut holes on one side. Furthermore, existing devices require re-fixing the workpiece after each hole is processed, necessitating manual clamping and making automatic clamping inconvenient. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a pneumatic chuck assembly with simple structure and easy operation. It can realize the function of automatic clamping when laser cutting square tubes and avoid air tube entanglement when the square tube rotates, making it more convenient to use and effectively solving the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic chuck assembly, including a mounting base, a through hole in the middle of the mounting base for a square tube to pass through, a rotating connecting plate rotatably connected to one side of the mounting base, a slide rod assembly on one side of the rotating connecting plate, two sets of clamping roller assemblies on the slide rod assembly, the two sets of clamping roller assemblies being vertically arranged, and two sets of cylinder clamping drive components for opening and closing the two sets of clamping roller assemblies on one side of the rotating connecting plate, two air holes on the rotating connecting plate, the air inlet and outlet of the cylinder clamping drive components being connected to one side of the air holes via conduits, two cylinder mounting seats on one side of the mounting base, each cylinder mounting seat having a retractable air head assembly mounted on it, the two retractable air head assemblies corresponding to the two air holes.

[0005] Furthermore, the retractable air head assembly includes a medium-capacity air cylinder fixedly connected to the air cylinder mounting base. The retractable end of the medium-capacity air cylinder is provided with a rubber connector that is sealed to one side of the air hole. The extension of the medium-capacity air cylinder can drive the rubber connector to move. The rubber connector is sealed to one side of the air hole, thereby enabling an external air pump to control the air cylinder clamping drive component.

[0006] Furthermore, the slide rod assembly includes four L-shaped fixing seats mounted on one side of the rotating connecting plate, two transverse slide rods connected between the four L-shaped fixing seats, and two longitudinal slide rods connected between the four L-shaped fixing seats, with the two transverse slide rods and the two longitudinal slide rods arranged in a vertical state.

[0007] Furthermore, each set of clamping roller assemblies consists of two units, with the two sets of clamping roller assemblies respectively mounted on two longitudinal slide bars and two transverse slide bars. Each clamping roller assembly includes a sliding seat that is slidably connected to the longitudinal slide bars or the slide bars. Each set of clamping roller assemblies has a clamping roller rotatably connected to one side of the two sliding seats opposite to each other.

[0008] Furthermore, the cylinder clamping drive includes a slide cylinder mounted on one side of the rotating connecting plate. The upper surface of the slide cylinder is connected to two connecting rods by a pin. The ends of the two connecting rods away from the slide cylinder are respectively connected to one end of a set of two clamping roller assemblies by a pin. The slide cylinder can drive the slide on its upper surface to move, and then the two connecting rods drive the two clamping roller assemblies of each set to clamp towards the middle. The clamping roller assemblies can clamp the square tube, and while clamping the square tube, they can also ensure that the square tube slides back and forth.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the extension of the central air cylinder can drive the rubber connector to move, and the rubber connector is sealed to one side of the air hole, thereby enabling the external air pump to control the cylinder clamping drive component. The slide cylinder can drive the slide on its upper surface to move, and then the two connecting rods drive the two clamping roller assemblies of each group to clamp in the middle. The clamping roller assembly can clamp the square tube, and at the same time as clamping the square tube, it can ensure that the square tube slides back and forth. This pneumatic chuck assembly has a simple structure and is easy to operate. When laser cutting the square tube, it can realize the function of automatic clamping, and avoid the air tube entanglement when the square tube rotates, making it more convenient to use. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention. Figure 3 This is a schematic diagram of the connection structure between the slide bar assembly and the clamping roller assembly of this utility model.

[0011] In the figure: 1 Mounting base, 2 Rotating connecting plate, 3 Air hole, 4 Telescopic air head assembly, 41 Medium air cylinder, 42 Rubber connector, 5 Cylinder connecting support, 6 Cylinder clamping drive, 61 Connecting rod, 62 Slide table cylinder, 7 Slide rod assembly, 71 Longitudinal slide rod, 72 L-shaped fixed seat, 73 Transverse slide rod, 8 Clamping roller assembly, 81 Clamping roller, 82 Sliding seat. Detailed Implementation

[0012] 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.

[0013] Please see Figure 1-3This utility model provides a technical solution: a pneumatic chuck assembly, including a mounting base 1, a through hole in the middle of the mounting base 1 for a square tube to pass through, a rotating connecting plate 2 rotatably connected to one side of the mounting base 1, a slide rod assembly 7 on one side of the rotating connecting plate 2, two sets of clamping roller assemblies 8 on the slide rod assembly 7, the two sets of clamping roller assemblies 8 being vertically arranged, and two sets of cylinder clamping drive components 6 for opening and closing the two sets of clamping roller assemblies 8 on one side of the rotating connecting plate 2, two air holes 3 on the rotating connecting plate 2, the air inlet and air outlet of the cylinder clamping drive component 6 being connected to one side of the air holes 3 through conduits, and one side of the mounting base 1... Two cylinder mounting seats 5 are provided, each with a retractable air head assembly 4. The two retractable air head assemblies 4 correspond to two air holes 3. Each retractable air head assembly 4 includes a medium-capacity air cylinder 41 fixedly connected to the cylinder mounting seat 5. The telescopic end of the medium-capacity air cylinder 41 is equipped with a rubber connector 42 that seals one side of the air hole 3. The extension of the medium-capacity air cylinder 41 can drive the rubber connector 42 to move. The rubber connector 42 is sealed to one side of the air hole 3, thereby enabling an external air pump to control the cylinder clamping drive component 6. The slide rod assembly 7 includes four L-shaped fixing seats 72 mounted on one side of the rotating connecting plate 2. Two transverse slide rods 73 are connected between the four L-shaped fixed seats 72, and two longitudinal slide rods 71 ​​are also connected between the four L-shaped fixed seats 73. The two transverse slide rods 73 and the two longitudinal slide rods 71 ​​are arranged in a vertical state. There are two clamping roller assemblies 8 in each group. The two clamping roller assemblies 8 are respectively set on the two longitudinal slide rods 71 ​​and the two transverse slide rods 73. The clamping roller assembly 8 includes a sliding seat 82 that is slidably connected to the longitudinal slide rod 71 or the slide rod 73. The two sliding seats 82 of each clamping roller assembly 8 are provided with a clamping roller 81 rotatably connected on opposite sides. The cylinder clamping drive 6 includes a slide cylinder 62 installed on one side of the rotating connecting plate 2. The slide of the slide cylinder 62 is a slide. The upper surface is connected by two connecting rods 61 via pins. The ends of the two connecting rods 61 away from the slide cylinder 62 are respectively connected to one end of two clamping roller assemblies 8 in a group via pins. The slide cylinder 62 can drive the slide on its upper surface to move, and then the two connecting rods 61 drive the two clamping roller assemblies 8 in each group to clamp in the middle. The clamping roller assemblies 8 can clamp the square tube, and while clamping the square tube, the clamping rollers 81 can also ensure that the square tube slides back and forth. This pneumatic chuck assembly has a simple structure and is easy to operate. When laser cutting the square tube, it can realize the function of automatic clamping, and avoids air tube entanglement when the square tube rotates, making it more convenient to use.

[0014] In use: First, place the device on the laser cutting machine, then pass the square tube workpiece through the middle position of the four clamping rollers 81. The extension of the central air cylinder 41 can drive the rubber connector 42 to move. The rubber connector 42 is sealed to one side of the air hole 3, so that the external air pump controls the cylinder clamping drive 6. The slide cylinder 62 can drive the slide on its upper surface to move. Then, the two connecting rods 61 drive the two clamping roller assemblies 8 of each group to clamp in the middle. The clamping roller assembly 8 can clamp the square tube, and while clamping the square tube, the clamping roller 81 can also ensure that the square tube slides back and forth. When the clamping roller assembly 8 clamps, the sliding rod assembly 7 makes the sliding more stable.

[0015] 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.

Claims

1. A pneumatic chuck assembly, comprising a mounting base (1), wherein the mounting base (1) has a through hole in the middle for a square tube to pass through, characterized in that: A rotating connecting plate (2) is provided on one side of the mounting base (1). A slide rod assembly (7) is provided on one side of the rotating connecting plate (2). Two sets of clamping roller assemblies (8) are provided on the slide rod assembly (7). The two sets of clamping roller assemblies (8) are vertically arranged. Two sets of cylinder clamping drive components (6) that drive the two sets of clamping roller assemblies (8) to open and close are provided on one side of the rotating connecting plate (2). Two air holes (3) are provided on the rotating connecting plate (2). The air inlet and air outlet of the cylinder clamping drive component (6) are respectively connected to one side of the air hole (3) through a conduit. Two cylinder mounting seats (5) are provided on one side of the mounting base (1). A telescopic air head assembly (4) is installed on each cylinder mounting seat (5). The two telescopic air head assemblies (4) correspond to the two air holes (3).

2. A pneumatic chuck assembly according to claim 1, characterized in that: The retractable air head assembly (4) includes an intermediate air cylinder (41) fixedly connected to the cylinder mounting base (5), and the retractable end of the intermediate air cylinder (41) is provided with a rubber connector (42) sealed to one side of the air hole (3).

3. A pneumatic chuck assembly according to claim 1, characterized in that: The slide rod assembly (7) includes four L-shaped fixing seats (72) installed on one side of the rotating connecting plate (2). Two transverse slide rods (73) are connected between the four L-shaped fixing seats (72), and two longitudinal slide rods (71) are also connected between the four L-shaped fixing seats (72). The two transverse slide rods (73) and the two longitudinal slide rods (71) are arranged in a vertical state.

4. A pneumatic chuck assembly according to claim 3, characterized in that: There are two clamping roller assemblies (8) in each group. The two clamping roller assemblies (8) are respectively set on two longitudinal slide bars (71) and two transverse slide bars (73). The clamping roller assembly (8) includes a sliding seat (82) that is slidably connected to the longitudinal slide bar (71) or the slide bar (73). The two sliding seats (82) of each clamping roller assembly (8) are provided with a clamping roller (81) rotatably connected on the opposite side.

5. A pneumatic chuck assembly according to claim 1, characterized in that: The cylinder clamping drive (6) includes a slide cylinder (62) installed on one side of the rotating connecting plate (2). The upper surface of the slide cylinder (62) is connected to two connecting rods (61) by a pin. The ends of the two connecting rods (61) away from the slide cylinder (62) are respectively connected to one end of a set of two clamping roller assemblies (8) by a pin.

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