A laser pipe cutting machine head structure

Abstract

The utility model relates to the technical fields of laser pipe cutting machine, propose a kind of laser pipe cutting machine head structure, including laser head and be used to support the cantilever of laser head, the cantilever is horizontally arranged, the laser head is rotatably connected on cantilever by connecting frame, the connecting frame includes the rotary table rotatably connected with cantilever, the rotary table is driven to rotate by a drive device, the central axis of the rotary table is horizontally arranged, the rotary table is fixed with the rotating arm perpendicular to its central axis, the rotating arm is fixed with the mounting arm perpendicular to it, the mounting arm is fixed with the mounting bracket of the laser head connected to the laser head, the laser emission point of the laser head is located on the central axis of rotary table. The utility model has the beneficial effects that: by the connecting frame being set, can guarantee that the laser emission point of laser head is always located in fixed point position when rotating, will not occur deviation, to ensure the cutting accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of laser tube cutting machines, specifically to a laser tube cutting machine head structure. Background Technology

[0002] When a laser tube cutting machine performs beveling, the laser head needs to be rotated. As the laser head rotates, the emission point at the bottom of the laser head also swings synchronously with the laser head, forming an arc-shaped movement trajectory. The swinging of the emission point affects the accuracy of the beveling. At the same time, the laser head is connected to an optical fiber tube. During processing, the optical fiber tube will be displaced or flung as the laser head moves. After long-term use, the laser head will be pulled by the optical fiber tube, resulting in a certain degree of displacement. Utility Model Content

[0003] This invention proposes a laser tube cutting machine head structure. Through the set connecting frame, it can be ensured that the laser emission point of the laser head is always located at a fixed position when the laser head rotates, and will not be offset, thereby ensuring the cutting accuracy.

[0004] Therefore, the technical solution adopted is as follows:

[0005] A laser tube cutting machine head structure includes a laser head and a cantilever for supporting the laser head. The cantilever is horizontally arranged, and the laser head is rotatably connected to the cantilever via a connecting frame. The connecting frame includes a turntable rotatably connected to the cantilever. The turntable is driven to rotate by a driving device. The central axis of the turntable is horizontally arranged, and a rotating arm perpendicular to the central axis is fixed on the turntable. A mounting arm perpendicular to the rotating arm is fixed on the rotating arm, and a mounting bracket for connecting the laser head is fixed on the mounting arm. The laser emission point of the laser head is located on the central axis of the turntable.

[0006] A further technical solution is that the cantilever is fixed on a cross slide, the cross slide includes a vertical sliding mechanism and a horizontal sliding mechanism that can slide vertically connected to the vertical sliding mechanism, and the cantilever is horizontally connected to the horizontal sliding mechanism.

[0007] A further technical solution is that the vertical sliding mechanism includes a vertical column, a vertical slide rail fixed on the vertical column, a vertical slider slidably connected to the vertical slide rail, a vertical slide block fixed on the vertical slider, a horizontal sliding mechanism fixed on the vertical slide block, a vertical lead screw rotatably connected to the vertical column, a vertical lead screw nut threadedly connected to the vertical lead screw, the vertical lead screw nut fixed on the vertical slide block, and the vertical lead screw being driven to rotate by a driving device.

[0008] A further technical solution is that the horizontal sliding mechanism includes a horizontal slide rail fixed on a vertical slide block, a horizontal slider slidably connected to the horizontal slide rail, a cantilever fixed on the horizontal slider, a horizontal lead screw fixed on the vertical slide block, a horizontal lead screw nut threadedly connected to the horizontal lead screw, the horizontal lead screw nut fixed on the cantilever, a synchronous pulley fixed at one end of the horizontal lead screw, a drive wheel connected to the synchronous pulley via a synchronous belt, and the drive wheel rotating via a drive device.

[0009] A further technical solution is that an optical fiber tube is connected to the laser head, a protective cover is fixed on the horizontal sliding mechanism, and the protective cover is respectively provided with a receiving hole one and a receiving hole two for accommodating the cantilever and the optical fiber tube to pass through.

[0010] A further technical solution is that an optical fiber tube is connected to the laser head, and an optical fiber insertion hole and an optical fiber extension hole are provided on the cantilever.

[0011] A further technical solution is that the cantilever is a hollow box structure.

[0012] A further technical solution is that the first drive device, the second drive device, and the third drive device all include a servo motor and a reducer.

[0013] The working principle and beneficial effects of this application are as follows:

[0014] 1. By setting up a connecting frame, when the laser head needs to rotate on the cantilever for bevel cutting, the position of the laser emission point remains unchanged regardless of how it rotates, thus avoiding the problem of inaccurate cutting accuracy caused by the position changing with the laser head.

[0015] 2. At the same time, the connecting frame reduces the rotation range of the laser head and the fiber optic tube connection without affecting the rotation angle of the laser head. In addition, the cantilever is used to position the fiber optic tube, which can reduce the swinging of the fiber optic tube when the laser head rotates. Thus, the laser head will not be deviated due to the swinging and pulling of the fiber optic tube. Attached Figure Description

[0016] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a side view of the structure of this application;

[0018] Figure 2 This is a schematic diagram of the main view structure of this application;

[0019] Figure 3 This is a schematic diagram of the overall structure of this application;

[0020] Figure 4 This is a side view of the cross slide table described in this application.

[0021] Figure 5 This is a bottom view of the cross slide table described in this application.

[0022] Figure 6 This is a schematic diagram of the connecting frame described in this application;

[0023] Figure 7 This is a schematic diagram of the structure of the protective cover described in this application.

[0024] In the diagram: 100, Laser head; 2, Cantilever; 3, Turntable; 31, Drive device one; 32, Rotating arm; 33, Mounting arm; 34, Mounting bracket; 1, Laser emission point; 41, Vertical sliding mechanism; 42, Horizontal sliding mechanism; 411, Vertical column; 412, Vertical slide rail; 413, Vertical slider; 414, Vertical slide block; 415, Vertical lead screw; 416, Vertical lead screw nut; 417, Drive device two; 421, Horizontal slide rail; 422, Horizontal slider; 423, Horizontal lead screw; 424, Horizontal lead screw nut; 425, Synchronous pulley; 426, Drive wheel; 427, Drive device three; 5, Fiber optic tube; 6, Protective cover; 61, Receiving hole one; 62, Receiving hole two. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figures 1-7 As shown, a laser tube cutting machine head structure includes a laser head 100 and a cantilever 2 for supporting the laser head 100. The cantilever 2 is horizontally arranged, and the laser head 100 is rotatably connected to the cantilever 2 via a connecting frame. The connecting frame includes a turntable 3 rotatably connected to the cantilever 2. The turntable 3 is driven to rotate by a driving device 31. The central axis of the turntable 3 is horizontally arranged, and a rotating arm 32 perpendicular to its central axis is fixed on the turntable 3. A mounting arm 33 perpendicular to the rotating arm 32 is fixed on the rotating arm 32, and a mounting bracket 34 for connecting the laser head 100 is fixed on the mounting arm 33. The laser emission point 1 of the laser head 100 is located on the central axis of the turntable 3.

[0027] When the laser head 100 of the laser tube cutting machine is in a vertical position, it can cut the tube vertically. When beveling is required, the drive device 31 drives the turntable 3 to rotate, which in turn drives the rotating arm 32, mounting arm 33, and mounting bracket 34 to rotate synchronously, thereby driving the laser head 100 to rotate and beveling the tube. Under the drive of the drive device 31, the rotating arm 32 can drive the laser head 100 to rotate within a 50° reciprocating range, thereby changing the cutting angle for beveling. Since the rotating arm 32 is always perpendicular to the central axis of the turntable 3, and the mounting arm 33 is perpendicular to the rotating arm 32, the laser head 100 is set to be parallel to the rotating arm 32, and its laser emission point 1 is located on the central axis of the turntable 3. At this time, if... Figures 2-3 As shown, no matter how the turntable 3 drives the laser head 100 to rotate, the position of the laser emission point 1 remains unchanged, thus avoiding the problem of inaccurate cutting accuracy caused by the position changing with the laser head 100.

[0028] Currently, laser tube cutting machines typically employ a gantry structure, with the machine head mounted on a crossbeam of the gantry for movement. This gantry structure increases the overall height of the laser tube cutting machine, increases the volume of the protective cover for the machine head, and also hinders equipment transportation. Therefore, if... Figures 4-5 As shown, the cantilever 2 is fixed on the cross slide table, which includes a vertical sliding mechanism 41 and a horizontal sliding mechanism 42 that can slide vertically connected to the vertical sliding mechanism 41. The cantilever 2 is horizontally connected to the horizontal sliding mechanism 42.

[0029] One embodiment of the cross slide table includes a vertical sliding mechanism 41 comprising a vertical column 411, a vertical slide rail 412 fixed on the vertical column 411, a vertical slider 413 slidably connected to the vertical slide rail 412, a vertical slide block 414 fixed on the vertical slider 413, a horizontal sliding mechanism 42 fixed on the vertical slide block 414, and a vertical lead screw 415 rotatably connected to the vertical column 411. A vertical lead screw nut 416 threadedly connected to the vertical lead screw 415 is fitted onto the vertical lead screw 415, and the vertical lead screw nut 416 is fixed on the vertical slide block 414. The vertical lead screw 415 is driven to rotate by a driving device 417. The vertical movement of the vertical slide block 414 is achieved by the rotation of the vertical lead screw 415.

[0030] The horizontal sliding mechanism 42 includes a horizontal slide rail 421 fixed on a vertical slide block 414, a horizontal slider 422 slidably connected to the horizontal slide rail 421, and a cantilever 2 fixed on the horizontal slider 422. A horizontal lead screw 423 is also fixed on the vertical slide block 414, and a horizontal lead screw nut 424 threadedly connected to the horizontal lead screw 423 is fitted onto it. The horizontal lead screw nut 424 is fixed on the cantilever 2. A synchronous pulley 425 is fixed to one end of the horizontal lead screw 423. The synchronous pulley 425 is connected to a drive wheel 426 via a synchronous belt. The drive wheel 426 is driven to rotate by a drive device 427. The drive wheel 426 drives the synchronous pulley 425, which in turn drives the horizontal lead screw 423 to rotate, thus enabling the horizontal slider 422 to slide the cantilever 2 horizontally.

[0031] By utilizing the cantilever type 2 structure of the cross slide, the limitation of the existing laser cutting mechanism being fixed on the gantry beam is overcome, the overall height of the laser tube cutting machine is reduced, and the rotation mode of the laser head 100 during beveling is adjusted in conjunction with the connecting frame, so that the swing range of the laser head 100 is smaller and the processing accuracy of beveling is improved.

[0032] like Figure 1 and Figure 7 As shown, an optical fiber tube 5 is connected to the laser head 100, and a protective cover 6 is fixed to the horizontal sliding mechanism 42. The protective cover 6 has two accommodating holes, 61 and 62, respectively, to accommodate the cantilever 2 and the optical fiber tube 5. The protective cover protects the equipment inside. Accommodating holes 61 and 62 respectively accommodate the cantilever 2 and the optical fiber tube 5, with the second accommodating hole 62 located above the first accommodating hole 61. An optical fiber tube 5 is connected to the rear of the laser head 100 and passes through the second accommodating hole 62, which positions the optical fiber tube 5 and reduces the swinging motion of the optical fiber tube 5 when the laser head 100 rotates, thus reducing the displacement of the laser head 100 caused by the swinging motion of the optical fiber tube 5. The cantilever 2 and its corresponding guide rail pass through the hole in the cantilever 2, ensuring that the protective cover does not obstruct the horizontal movement of the cantilever 2.

[0033] like Figure 1 and Figure 3As shown, the cantilever 2 is a hollow box structure with a large internal space, which reduces weight and provides space for the fiber optic tube 5. The fiber optic tube 5 is connected to the laser head 100, and the cantilever 2 has fiber optic insertion holes and fiber optic extension holes. The fiber optic insertion hole is located at the top of the cantilever 2, and the fiber optic extension hole is located at the bottom. The fiber optic tube 5 connected to the laser head 100 passes through the fiber optic insertion hole, extends into the fiber optic insertion hole, and extends outward from the fiber optic extension hole. The box-like structure of the cantilever 2 provides space for the fiber optic tube 5, preventing interference with other equipment and providing some fixation, further reducing the swaying of the fiber optic tube 5 caused by the rotation of the laser head 100.

[0034] Among them, drive device 1 31, drive device 2 417 and drive device 3 427 all include servo motors and reducers. This enables high-precision positioning and control of the movement and rotation of the laser head 100, significantly improving the system response speed and optimizing energy efficiency, while the overall size is small, the structure is compact and saves space.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A laser tube cutting machine head structure, comprising a laser head (100) and a cantilever (2) for supporting the laser head (100), characterized in that, The cantilever (2) is horizontally set, and the laser head (100) is rotatably connected to the cantilever (2) through a connecting frame. The connecting frame includes a turntable (3) rotatably connected to the cantilever (2). The turntable (3) is driven to rotate by a driving device (31). The central axis of the turntable (3) is horizontally set. A rotating arm (32) perpendicular to the central axis is fixed on the turntable (3). A mounting arm (33) perpendicular to the rotating arm (32) is fixed on the rotating arm (32). A mounting bracket (34) for connecting the laser head (100) is fixed on the mounting arm (33). The laser emission point (1) of the laser head (100) is located on the central axis of the turntable (3).

2. The laser tube cutting machine head structure according to claim 1, characterized in that, The cantilever (2) is fixed on the cross slide table, which includes a vertical sliding mechanism (41) and a horizontal sliding mechanism (42) that can slide up and down with the vertical sliding mechanism (41). The cantilever (2) and the horizontal sliding mechanism (42) can slide horizontally.

3. The laser tube cutting machine head structure according to claim 2, characterized in that, The vertical sliding mechanism (41) includes a vertical column (411), a vertical slide rail (412) fixed on the vertical column (411), a vertical slider (413) slidably connected to the vertical slide rail (412), a vertical slide block (414) fixed on the vertical slider (413), a horizontal sliding mechanism (42) fixed on the vertical slide block (414), a vertical screw (415) rotatably connected to the vertical column (411), a vertical screw nut (416) threadedly connected to the vertical screw (415), the vertical screw nut (416) fixed on the vertical slide block (414), and the vertical screw (415) driven to rotate by a driving device (417).

4. The laser tube cutting machine head structure according to claim 3, characterized in that, The horizontal sliding mechanism (42) includes a horizontal slide rail (421) fixed on a vertical slide block (414), a horizontal slider (422) slidably connected to the horizontal slide rail (421), a cantilever (2) fixed on the horizontal slider (422), a horizontal lead screw (423) fixed on the vertical slide block (414), a horizontal lead screw nut (424) threadedly connected to the horizontal lead screw (423), the horizontal lead screw nut (424) fixed on the cantilever (2), a synchronous pulley (425) fixed at one end of the horizontal lead screw (423), a drive wheel (426) connected to the synchronous pulley (425) via a synchronous belt, and the drive wheel (426) being driven to rotate by a drive device (427).

5. The laser tube cutting machine head structure according to claim 2, characterized in that, The laser head (100) is connected to an optical fiber tube (5), and a protective cover (6) is fixed on the horizontal sliding mechanism (42). The protective cover (6) is provided with a first accommodating hole (61) and a second accommodating hole (62) for accommodating the cantilever (2) and the optical fiber tube (5) to pass through.

6. The laser tube cutting machine head structure according to claim 1, characterized in that, The laser head (100) is connected to an optical fiber tube (5), and the cantilever (2) is provided with an optical fiber insertion hole and an optical fiber extension hole.

7. The laser tube cutting machine head structure according to claim 1, characterized in that, The cantilever (2) is a hollow box structure.

8. The laser tube cutting machine head structure according to claim 4, characterized in that, The drive device one (31), drive device two (417) and drive device three (427) all include a servo motor and a reducer.

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