Automatic circular pipe cutting device

Abstract

The invention discloses an automatic circular pipe cutting device which comprises a support. A conveying roller, a feeding assembly and a cutting mechanism are arranged on the upper portion of the support. The feeding assembly comprises a supporting rod, two movable plates are installed on a rod body of the supporting rod in a sliding mode, roller frames are hinged to the upper ends of the two movable plates, two oppositely-arranged rollers are rotationally installed on the two roller frames, a motor for driving the rollers to rotate is arranged at the end of one roller frame, and connecting rods are movably inserted into the ends, on the same side, of the two roller frames. And a telescopic driving device is arranged between the supporting rod and the connecting rod. The feeding assembly capable of switching the working postures is arranged, the telescopic driving device is used for controlling the two rollers to be switched between the horizontal state and the vertical state, the circular pipe can be driven to rotate in the horizontal state so as to be matched with circumferential cutting, the circular pipe can be pushed to be axially fed in the vertical state, feeding and rotating integrated operation is achieved, and the working efficiency is improved. And the cutting efficiency and the automation degree are obviously improved.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment technology, specifically to an automatic round tube cutting device. Background Technology

[0002] In fields such as machinery manufacturing, building decoration, furniture production, and piping engineering, round tubes are a common structural material widely used in various products and projects. To meet different usage requirements, round tubes typically undergo processing operations such as fixed-length cutting, bevel cutting, or irregular end face cutting. Traditional round tube cutting mostly relies on manual operation of handheld cutting equipment or semi-automatic cutting machines, which suffers from problems such as high labor intensity, low cutting accuracy, low efficiency, and safety hazards.

[0003] With the development of automation technology, some automated round tube cutting equipment has emerged on the market, which typically includes components such as a feeding mechanism, a clamping and positioning mechanism, and a cutting mechanism. However, existing equipment still has many shortcomings in practical applications: on the one hand, most feeding mechanisms can only achieve axial conveying of the round tube and cannot drive the round tube to rotate, making it difficult to cooperate with laser or plasma cutting heads to complete circumferential continuous cutting; on the other hand, if both feeding and rotation functions are required, two independent drive systems are often needed, resulting in complex structure, increased cost, large space occupation, and poor coordination between the various mechanisms. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide an automatic round tube cutting device that can drive the round tube to rotate in a horizontal state to cooperate with circumferential cutting, and can also push the round tube to feed axially in a vertical state, realizing integrated feeding and rotation operation, significantly improving cutting efficiency and automation, saving costs, and effectively solving the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic round tube cutting device, comprising a support frame, with multiple conveying rollers on the upper part of the support frame, a feeding assembly on one side of the support frame opposite to the conveying rollers, and a cutting mechanism on the other side of the support frame opposite to the feeding assembly; the feeding assembly includes a support rod, both ends of which are fixedly connected to the support frame via support plates, and two movable plates are slidably mounted on the support rod body, with roller frames hinged to the upper ends of the two movable plates, and two opposing rollers rotatably mounted on each of the two roller frames, one of which has a motor at its end for driving the roller rotation, and a connecting rod movably inserted into one end of each of the two roller frames on the same side; a telescopic drive device is provided between the support rod and the connecting rod, wherein when the telescopic drive device is extended to its full position, the two rollers remain horizontal and are used to drive the round tube to rotate, and when the telescopic drive device is retracted to its full position, the two rollers remain vertical and are used to drive the round tube to move axially.

[0006] Preferably, the movable plate has a vertically arranged long groove on its surface, through which the support rod passes. Both sides of the movable plate are provided with locking nuts that are threadedly engaged with the support rod, corresponding to the long groove.

[0007] Preferably, the surface of the movable plate is provided with a positioning plate for positioning the roller frame and keeping it in a horizontal state.

[0008] Preferably, the movable plate has an opening groove on its surface for positioning the connecting rod and keeping the roller frame in a vertical position.

[0009] Preferably, the end of the roller frame is provided with a through hole for the connecting rod to pass through.

[0010] Preferably, the cutting mechanism includes a laser cutting head and a two-axis robotic arm, the two-axis robotic arm driving the laser cutting head to move up and down and to move closer to or away from the circular tube.

[0011] Preferably, the telescopic drive device is one of a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder, and both ends of the telescopic drive device are connected to the support rod and the connecting rod respectively through lugs.

[0012] Preferably, the surfaces of the conveying roller and the roller are covered with an anti-slip rubber layer.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a feeding component with switchable working posture, and using a telescopic drive device to control the two rollers to switch between horizontal and vertical states, it can drive the round tube to rotate in the horizontal state to cooperate with circumferential cutting, and push the round tube to feed axially in the vertical state, realizing integrated feeding and rotation operation, significantly improving cutting efficiency and automation level. It has the advantages of compact structure, simple operation, high degree of automation, and efficient collaborative completion of axial feeding and circumferential rotation of the round tube. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the feeding assembly structure of the present invention; Figure 4 for Figure 3 Side view; Figure 5 This is a schematic diagram of another working state of the feeding component of the present invention.

[0015] In the picture: 1 bracket; 2. Conveyor rollers; 3. Feeding assembly, 3.1 Motor, 3.2 Roller frame, 3.3 Roller, 3.4 Movable plate, 3.41 Positioning plate, 3.42 Long groove, 3.43 Open groove, 3.5 Support plate, 3.6 Telescopic drive device, 3.7 Support rod, 3.8 Locking nut, 3.9 Connecting rod; 4. Cutting mechanism, 4.1 Laser cutting head, 4.2 Two-axis robotic arm. Detailed Implementation

[0016] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation.

[0017] Please see Figure 1-5 The present invention provides the following technical solutions: Example 1: An automatic round tube cutting device includes a support 1, a plurality of conveying rollers 2 on the upper part of the support 1, a feeding assembly 3 on the side of the support 1 opposite to the conveying rollers 2, and a cutting mechanism 4 on the side of the support 1 opposite to the feeding assembly 3. The feeding assembly 3 includes a support rod 3.7. Both ends of the support rod 3.7 are fixedly connected to the bracket 1 via support plates 3.5. Two movable plates 3.4 are slidably mounted on the body of the support rod 3.7. Roller frames 3.2 are hinged to the upper ends of the two movable plates 3.4. Two opposing rollers 3.3 are rotatably mounted on the two roller frames 3.2. A motor 3.1 for driving the roller 3.3 to rotate is provided at the end of one of the roller frames 3.2. A connecting rod 3.9 is movably inserted into one end of the same side of the two roller frames 3.2. A through hole for the connecting rod 3.9 to pass through is provided at the end of the roller frame 3.2. A telescopic drive device 3.6 is provided between the support rod 3.7 and the connecting rod 3.9. When the telescopic drive device 3.6 is extended to the full position, the two rollers 3.3 remain horizontal and are used to drive the round tube to rotate. When the telescopic drive device 3.6 is shortened to the full position, the two rollers 3.3 remain vertical and are used to drive the round tube to move axially. It is understandable that the two rollers 3.3 in the feeding assembly 3 are controlled by the telescopic drive device 3.6. When extended to the desired position, the two rollers 3.3 are horizontal, clamping and driving the round tube to rotate around its own axis. When shortened to the desired position, the rollers are vertical, pushing the round tube to move linearly along the axial direction (i.e., feeding). There is no need to set up an additional independent rotation drive mechanism and feeding mechanism, saving space and simplifying the structure. The switching process is completed by the same set of mechanisms, with high coordination of actions. By precisely controlling the stroke of the telescopic drive device 3.6, the two rollers 3.3 can stably switch between two working postures, and together with the conveying roller 2 and the cutting mechanism 4, they form a complete processing flow, automatically completing the entire process of feeding, rotating, and cutting, reducing manual intervention, and improving production consistency and efficiency. It should be noted that the movable plate 3.4 has a positioning plate 3.41 for positioning the roller frame 3.2 and keeping it in a horizontal position. The positioning plate 3.41 is in positioning contact with the roller frame 3.2. The movable plate 3.4 has an opening groove 3.43 for positioning the connecting rod 3.9 and keeping the roller frame 3.2 in a vertical position. The roller frame 3.2 is reliably limited in both horizontal and vertical positions to ensure stable working posture, improve cutting accuracy and equipment operation reliability. Specifically, the cutting mechanism 4 includes a laser cutting head 4.1 and a two-axis robotic arm 4.2. The two-axis robotic arm 4.2 drives the laser cutting head 4.1 to move up and down and move closer to or away from the round tube. By using the laser cutting head 4.1 in conjunction with the two-axis robotic arm 4.2, the up and down movement of the laser cutting head 4.1 and its relative distance to the round tube can be precisely controlled, adapting to different tube diameters and cutting path requirements, and achieving high-quality, burr-free, and high-precision cutting results. Specifically, the telescopic drive device 3.6 is one of a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder, and both ends of the telescopic drive device 3.6 are connected to the support rod 3.7 and the connecting rod 3.9 respectively through lugs.

[0018] Example 2: Unlike Example 1, the movable plate 3.4 has a vertically arranged long groove 3.42. The support rod 3.7 passes through the long groove 3.42. Both sides of the movable plate 3.4 are provided with locking nuts 3.8 that are threadedly engaged with the support rod 3.7, corresponding to the long groove 3.42. This allows adjustment of the position of the two movable plates 3.4, facilitating flexible adjustment of the distance between the two rollers 3.3 according to the diameter of the round tubes. This allows the two rollers 3.3 to match different specifications of round tubes when in a vertical position. Another effect of the long groove 3.42 is that after the connecting rod 3.9 enters the opening groove 3.43, the telescopic drive device 3.6 extends or shortens. Since the position of the support rod 3.7 is fixed, the extension or shortening of the telescopic drive device 3.6 can drive the two movable plates 3.4 to move up and down, changing the height of the two rollers 3.3. This allows the two rollers 3.3 to match different specifications of round tubes when in a horizontal position, enhancing the expandability of the equipment. In addition, the surfaces of conveying rollers 2 and 3.3 are covered with anti-slip rubber layers, which effectively increase the friction between the rollers and the tube, prevent slippage, and ensure that the tube rotates and moves axially smoothly and synchronously, avoiding cutting deviations caused by slippage.

[0019] The parts of this invention not described in detail are prior art. It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to encompass all changes that fall within the meaning and scope of equivalents in the content of this invention.

Claims

1. An automatic round tube cutting device, comprising a support (1), characterized in that: The upper part of the bracket (1) is provided with multiple conveying rollers (2), and a feeding assembly (3) is provided on one side of the bracket (1) opposite to the conveying rollers (2). A cutting mechanism (4) is provided on one side of the bracket (1) opposite to the feeding assembly (3). The feeding assembly (3) includes a support rod (3.7). Both ends of the support rod (3.7) are fixedly connected to the bracket (1) through support plates (3.5). Two movable plates (3.4) are slidably installed on the body of the support rod (3.7). Roller frames (3.2) are hinged to the upper ends of the two movable plates (3.4). The two roller frames (3.2) are rotatably installed with... Two opposing rollers (3.3) are provided, one of which has a motor (3.1) at its end that drives the roller (3.3) to rotate. A connecting rod (3.9) is movably inserted into one end of both rollers (3.2) on the same side. A telescopic drive device (3.6) is provided between the support rod (3.7) and the connecting rod (3.9). When the telescopic drive device (3.6) is extended to the end, the two rollers (3.3) remain horizontal and are used to drive the circular tube to rotate. When the telescopic drive device (3.6) is shortened to the end, the two rollers (3.3) remain vertical and are used to drive the circular tube to move axially.

2. The automatic round tube cutting device according to claim 1, characterized in that: The movable plate (3.4) has a vertically arranged long groove (3.42) on its surface. The support rod (3.7) passes through the long groove (3.42). The movable plate (3.4) has locking nuts (3.8) on both sides of the long groove (3.42) that are threaded to the support rod (3.7).

3. The automatic round tube cutting device according to claim 1, characterized in that: The movable plate (3.4) has a positioning plate (3.41) on its surface for positioning the roller frame (3.2) and keeping it in a horizontal position.

4. The automatic round tube cutting device according to claim 1, characterized in that: The movable plate (3.4) has an opening slot (3.43) on its surface for positioning the connecting rod (3.9) and keeping the roller frame (3.2) in a vertical position.

5. The automatic round tube cutting device according to claim 1, characterized in that: The end of the roller frame (3.2) is provided with a through hole for the connecting rod (3.9) to pass through.

6. The automatic round tube cutting device according to claim 1, characterized in that: The cutting mechanism (4) includes a laser cutting head (4.1) and a two-axis robotic arm (4.2). The two-axis robotic arm (4.2) drives the laser cutting head (4.1) to move up and down and to move closer to or away from the circular tube.

7. The automatic round tube cutting device according to claim 1, characterized in that: The telescopic drive device (3.6) is one of a pneumatic cylinder, an electric cylinder or a hydraulic cylinder. Both ends of the telescopic drive device (3.6) are connected to the support rod (3.7) and the connecting rod (3.9) respectively through lugs.

8. The automatic round tube cutting device according to claim 1, characterized in that: The surfaces of the conveying rollers (2) and (3.3) are both covered with an anti-slip rubber layer.

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