Rotary protective door device for cross beam of laser cutting machine

Abstract

A rotary protective door device for a beam of a laser cutting machine comprises a machine frame, a rotating shaft is installed above the beam of the machine frame, the two ends of the rotating shaft are rotationally connected with the machine frame, a protective door is installed on the machine frame and comprises a top plate, a main plate and two side plates, the two side plates are fixedly connected with the two ends of the rotating shaft respectively, and the two sides of the machine frame are each provided with a thrust cylinder. A cylinder base of the thrust cylinder is rotationally connected with the rack, the end of a piston rod of the thrust cylinder is rotationally connected with the protective door, and the thrust cylinder drives the protective door to rotate with the rotating shaft as the center to be opened or closed. By adopting the rotary protective door, the occupied area is reduced when the protective door is opened or closed, the cost of the protective door is saved, and the protective door is easy to disassemble and maintain.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machine technology, specifically a rotating protective door device for the crossbeam of a laser cutting machine. Background Technology

[0002] CNC laser cutting machines are high-precision machine tools that use the high heat energy generated by lasers to cut materials. During the process, the laser emitter moves on a crossbeam. When working, the laser emitter and the crossbeam need to be protected to avoid external interference. Currently, most laser cutting machines use hinged doors, which occupy a large area, have high costs, and are inconvenient to operate during maintenance or disassembly. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a rotating protective door device for the crossbeam of a laser cutting machine.

[0004] The specific solution of this utility model is: a rotating protective door device for the crossbeam of a laser cutting machine, including a frame, a rotating shaft mounted on the top of the crossbeam of the frame, the two ends of the rotating shaft being rotatably connected to the frame, a protective door mounted on the frame, the protective door including a top plate, a main plate and two side plates, the two side plates being fixedly connected to the two ends of the rotating shaft respectively, a thrust cylinder mounted on each side of the frame, the cylinder seat of the thrust cylinder being rotatably connected to the frame, the piston rod end of the thrust cylinder being rotatably connected to the protective door, the thrust cylinder driving the protective door to rotate around the rotating shaft to open or close.

[0005] Furthermore, a pad is provided on the frame corresponding to the opening limit position and the closing limit position of the protective door.

[0006] Furthermore, the pad is made of an elastic material and has a cushioning effect.

[0007] Furthermore, the thrust cylinder is a pneumatic cylinder, and both pneumatic cylinders are connected to the main control system of the laser cutting machine via signal connection.

[0008] Compared with the prior art, this utility model has the following advantages: it adopts a rotating protective door, which reduces the area occupied when opening or closing, saves the cost of the protective door, and is easy to disassemble and maintain. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the back of the machine tool when the protective door is closed.

[0010] Figure 2 This is a front view of the machine tool when the protective door of this utility model is open;

[0011] Figure 3 yes Figure 2 The left view;

[0012] Figure 4 yes Figure 1 AA view;

[0013] Figure 5 This is an exploded view of the present invention;

[0014] In the diagram: 1. Crossbeam; 2. Laser emitter head; 3. Cylinder; 4. Frame; 5. Protective door; 51. Side plate; 52. Main board; 53. Top plate; 6. Shaft; 7. Door closing pad; 8. Door opening pad. Detailed Implementation

[0015] See Figure 1-5 This embodiment discloses a rotating protective door 5 device for a laser cutting machine beam 1, comprising a frame 4, a rotating shaft 6 mounted on the top of the beam 1 of the frame 4, the two ends of the rotating shaft 6 being rotatably connected to the frame 4, a protective door 5 mounted on the frame 4, the protective door 5 comprising a top plate 53, a main plate 52 and two side plates 51, the two side plates 51 being fixedly connected to the two ends of the rotating shaft 6 respectively, a thrust cylinder mounted on each side of the frame 4, the cylinder seat of the thrust cylinder being rotatably connected to the frame 4, the piston rod end of the thrust cylinder being rotatably connected to the protective door 5, the thrust cylinder driving the protective door 5 to rotate around the rotating shaft 6 to open or close.

[0016] Furthermore, a pad is provided on the frame 4 corresponding to the opening limit position and closing limit position of the protective door 5.

[0017] Furthermore, the pad is made of an elastic material and has a cushioning effect.

[0018] Furthermore, the thrust cylinder is a pneumatic cylinder 3, and both pneumatic cylinders 3 on both sides are connected to the main control system of the laser cutting machine.

[0019] The working principle of this utility model is as follows: When the protective door 5 is opened, the two cylinders 3 receive the signal from the main control system, the piston rods of the two cylinders 3 extend, and the two sides of the protective door 5 are pushed by the cylinders 3. The protective door 5 will rotate upward continuously around the rotating shaft 6. Finally, when the protective door 5 rotates about 90°, it stops when it hits the two door opening pads 8 on the frame 4. At this time, the protective door 5 is in the open state, and the crossbeam 1 and the laser emitter 2 are exposed. At this time, the top plate 53 of the protective door 5 rotates to the back of the crossbeam 1, and the main board 52 rotates to the position of the top plate 53. When the protective door 5 is closed, the two cylinders 3 receive signals from the main control system, and the piston rods of the two cylinders 3 retract. The two sides of the protective door 5 are pulled by the cylinders 3, and the protective door 5 rotates downwards continuously around the pivot 6. Finally, the protective door 5 rotates until it is stopped by the two closing position pads 7. At this time, the rotating protective door 5 is in the closed state, the crossbeam 1 and the laser emitter 2 are in the protected state, the main board 52 is located on the front of the crossbeam 1, and the top plate 53 is located above the crossbeam 1. This utility model can also control the opening position by adjusting the stroke of the cylinders 3.

Claims

1. A rotating protective door device for the crossbeam of a laser cutting machine, characterized in that: The system includes a frame, with a rotating shaft mounted above the crossbeam of the frame. The two ends of the rotating shaft are rotatably connected to the frame. A protective door is mounted on the frame, consisting of a top plate, a main plate, and two side plates. The two side plates are fixedly connected to the two ends of the rotating shaft, respectively. A thrust cylinder is mounted on each side of the frame. The cylinder seat of the thrust cylinder is rotatably connected to the frame, and the piston rod end of the thrust cylinder is rotatably connected to the protective door. The thrust cylinder drives the protective door to rotate around the rotating shaft to open or close.

2. The rotating protective door device for the crossbeam of a laser cutting machine according to claim 1, characterized in that: The frame is equipped with a pad for each of the opening and closing limit positions of the protective door.

3. A rotating protective door device for a laser cutting machine crossbeam according to claim 2, characterized in that: The pad is made of elastic material and has a cushioning effect.

4. A rotating protective door device for a laser cutting machine crossbeam according to claim 1, characterized in that: The thrust cylinder is a pneumatic cylinder, and both pneumatic cylinders are connected to the main control system of the laser cutting machine.

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