A laser cutting device for producing office desk panels

Abstract

This utility model discloses a laser cutting device for producing office desk panels, relating to the field of laser cutting devices. The utility model includes a main body comprising a machine tool, a first linear motor, and a second linear motor. A protective mechanism is mounted on the outer surface of the main body via a transmission mechanism. The device comprises a transmission mechanism, a lead screw seat, a slide groove, a lead screw, a servo motor, a lead screw slide, a protective mechanism, a mounting frame, bolts, an arc-shaped baffle, a second connecting frame, and a sensing plate. During laser cutting, a Hall sensor activates and senses the sensing plate, driving the lead screw slide to move the arc-shaped baffle synchronously with the laser cutting head in real time, forming a dynamic protective barrier. The dark, transparent arc-shaped baffle blocks laser spatter and strong light radiation while allowing the operator to observe the cutting status, achieving all-time safety protection without the need for a protective face mask and effectively solving the problem of operator fatigue.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting devices, specifically a laser cutting device for producing office desk panels. Background Technology

[0002] The laser cutting device for office desks is an advanced processing equipment that integrates high precision, high efficiency, and automated control. It uses a high-energy-density laser beam focused on the surface of the board to achieve precise cutting of wood, engineered wood such as particleboard and MDF, which are commonly used in office desk production. It can meet the needs of diversified office desk design and customized production.

[0003] Currently, the sheet metal laser cutting equipment used in the office desk manufacturing industry can be divided into two categories based on its scale and purpose: small and medium-sized and large. For small and medium-sized machine tools, a dedicated isolation cover is usually installed for safety reasons. This cover acts as a sturdy barrier, effectively blocking the high temperatures, spatter, and potentially harmful light generated during laser cutting, providing comprehensive protection for workers from accidental injury. However, when the machine tool malfunctions and needs repair, this protective cover becomes an obstacle. Maintenance personnel must first spend time and effort removing the cover before they can conduct a detailed inspection and effective repair, undoubtedly increasing the complexity and time cost of maintenance. Large sheet metal laser cutting equipment, due to its large size and complex structure, cannot be equipped with a fully covering isolation cover like small and medium-sized machine tools. Therefore, in actual operation, workers are generally required to wear professional protective masks. While these masks can block laser light and spatter to a certain extent, providing necessary protection, prolonged wear can cause discomfort. The weight of the mask can put significant pressure on the worker's neck and head, leading to increased fatigue. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a laser cutting device for producing office desks, so as to solve the technical problems of inconvenient maintenance of fixed isolation covers and poor operating comfort caused by reliance on protective masks in existing equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a laser cutting device for producing office desks, comprising a device body, the device body including a machine tool, a first linear motor and a second linear motor, and a protective mechanism installed on the outer surface of the device body through a transmission mechanism;

[0006] The protective mechanism includes a mounting frame, which is fixedly connected to a lead screw slide by bolts. An arc-shaped baffle is provided on the mounting frame. The arc-shaped baffle is a transparent black structure. A second connecting frame is provided on the top of the mounting frame, and a sensor plate is installed on the second connecting frame.

[0007] A Hall sensor is mounted on one side of the second linear motor via a first connecting bracket, and the Hall sensor is horizontally positioned at the same height as the sensing element.

[0008] By adopting the above technical solution, the mounting frame integrates a black transparent arc-shaped baffle, combined with the horizontal alignment design of the Hall sensor and the sensing plate, laying a structural foundation for dynamic protection. It physically blocks strong light splashes during the cutting process, while allowing operators to observe the operation status.

[0009] Furthermore, when the Hall sensor is activated, it can cause the Hall sensor to sense the sensing plate and is used to ensure that the lead screw slide moves with the second linear motor, thereby blocking the laser spatter and strong light emitted by the laser cutting head in real time.

[0010] By adopting the above technical solution, the Hall sensor senses the sensing plate in real time when it starts up, and drives the lead screw slide to move the arc baffle to accurately follow the second linear motor, forming a protective barrier that continuously shields the working area of ​​the laser cutting head.

[0011] Furthermore, when the Hall sensor is off, an external controller can be used to control the servo motor to manipulate the position of the mounting bracket.

[0012] By adopting the above technical solution, when the Hall sensor is off, the external controller can directly control the servo motor to independently drive the mounting bracket and arc baffle to move, quickly opening the maintenance channel.

[0013] Furthermore, the transmission mechanism includes a lead screw seat, which is fixedly connected to the machine tool. A sliding groove is provided at the front end of the lead screw seat, and a lead screw is rotatably connected in the sliding groove. A servo motor is provided at the front end of the lead screw seat, and the output end of the servo motor is fixedly connected to the lead screw.

[0014] By adopting the above technical solution, the transmission mechanism uses the lead screw seat as the base, constrains the rotational freedom of the lead screw through the slide groove, and provides a highly stable drive output in conjunction with the servo motor.

[0015] Furthermore, two lead screw slides are screwed onto the lead screw, and a mounting bracket is installed between the two lead screw slides.

[0016] By adopting the above technical solution, the double lead screw slides are symmetrically screwed to the lead screw, jointly supporting the mounting frame and enhancing the stability of the arc baffle displacement and its resistance to eccentric loads.

[0017] Furthermore, the top of the machine tool is driven by two sets of first linear motors, which in turn drive a set of second linear motors. A laser cutting head is mounted on one side of the second linear motor.

[0018] By adopting the above technical solution, the two sets of first linear motors drive the second linear motor to move in the Y direction, and the laser cutting head under its load achieves precise movement in the X direction.

[0019] Furthermore, a pusher is provided at the rear end of the machine tool, and a needle placement bed is mounted on the top of the pusher via a linear motor. The top of the needle placement bed is used to place the office desk board.

[0020] By adopting the above technical solution, the pusher and needle bed combination structure is used to stabilize the bearing plate through the support needle array of the needle bed, reducing the risk of scratching the contact surface.

[0021] Furthermore, the needle bed is driven by a linear motor to slide along the pusher tool, used to feed the office desk board into the laser cutting working area of ​​the machine tool.

[0022] By adopting the above technical solution, the needle bed is driven by a linear motor to slide along the pusher, accurately feeding the sheet metal into the laser cutting work area.

[0023] In summary, the present invention has the following main advantages:

[0024] This invention, through the configuration of a transmission mechanism, lead screw seat, slide groove, lead screw, servo motor, lead screw slide, protective mechanism, mounting bracket, bolts, arc-shaped baffle, second connecting bracket, and sensing plate, allows the Hall sensor to activate and sense the sensing plate during laser cutting operations. This drives the lead screw slide to move the arc-shaped baffle synchronously with the laser cutting head in real time, forming a dynamic protective barrier. At this time, the dark transparent arc-shaped baffle blocks laser spatter and strong light radiation, while allowing operators to observe the cutting status, achieving all-time safety protection without the need for protective masks and effectively solving the problem of operator fatigue. When the equipment is under maintenance or adjustment, the Hall sensor is turned off, and the servo motor is independently controlled by an external controller to move the lead screw slide, freely adjusting the position of the arc-shaped baffle. This allows the maintenance space to be opened without disassembly, completely solving the technical defect of inconvenient maintenance caused by fixed isolation covers. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0027] Figure 3 This is a side view of the three-dimensional structure of the present invention;

[0028] Figure 4 This utility model Figure 3 A magnified structural diagram at point B in the middle.

[0029] In the diagram: 1. Main body of the device; 101. Machine tool; 102. First linear motor; 103. Second linear motor; 104. Laser cutting head; 105. Pushing machine tool; 106. Needle bed; 107. First connecting frame; 108. Hall sensor; 2. Transmission mechanism; 201. Lead screw seat; 202. Slide groove; 203. Lead screw; 204. Servo motor; 205. Lead screw slide; 3. Protective mechanism; 301. Mounting frame; 302. Bolt; 303. Arc-shaped baffle; 304. Second connecting frame; 305. Sensing plate. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] A laser cutting device for producing office desk panels, such as Figure 1-4 As shown, the device includes a main body 1, which includes a machine tool 101, a first linear motor 102 and a second linear motor 103. A protective mechanism 3 is installed on the outer surface of the main body 1 through a transmission mechanism 2.

[0032] The protective mechanism 3 includes a mounting frame 301, which is fixedly connected to the lead screw slide 205 by bolts 302. An arc-shaped baffle 303 is provided on the mounting frame 301. The arc-shaped baffle 303 is a black transparent structure. A second connecting frame 304 is provided on the top of the mounting frame 301. A sensor plate 305 is installed on the second connecting frame 304.

[0033] A Hall sensor 108 is mounted on one side of the second linear motor 103 via a first connecting bracket 107. The Hall sensor 108 and the sensing plate 305 are set at the same horizontal height. The mounting bracket 301 and the lead screw slide 205 are rigidly connected by bolts 302 to ensure overall stability. The arc-shaped baffle 303 is made of a black transparent material, which has both laser splash blocking function and operation visualization capability. The top second connecting bracket 304 fixes the position of the sensing plate 305, so that it is strictly horizontally aligned with the Hall sensor 108 mounted on the first connecting bracket 107 on the side of the second linear motor 103, providing accurate position sensing conditions for the subsequent important synchronous following mechanism and avoiding the need to add additional detection components.

[0034] See Figure 3 , Figure 4When the Hall sensor 108 is activated, it can cause the Hall sensor 108 to sense the sensing plate 305 and ensure that the lead screw slide 205 moves with the second linear motor 103. This is used to block the laser spatter and strong light emitted by the laser cutting head 104 in real time. When the Hall sensor 108 is activated, it forms a continuous inductive coupling with the sensing plate 305 on the top of the mounting bracket 301. The generated position signal triggers the servo motor 204 to run, which in turn drives the lead screw 203 to rotate. This forces the lead screw slide 205, which is screwed onto the lead screw 203, to synchronize with the displacement trajectory of the second linear motor 103. This ensures that the arc baffle 303 blocks the strong light radiation path and spatter scattering range of the laser cutting head 104 in real time, without manual intervention or mechanical delay.

[0035] See Figure 3 , Figure 4 When the Hall sensor 108 is off, the servo motor 204 can be controlled by an external controller to manipulate the position of the mounting bracket 301. When the Hall sensor 108 is off, the linkage mechanism between the sensing plate 305 and the Hall sensor 108 is released. At this time, the external controller sends an independent command to the servo motor 204, which drives the lead screw slide 205 to move freely along the axial direction through the precise rotation of the lead screw 203, thereby causing the mounting bracket 301 and the arc-shaped baffle 303 to leave the working position, providing an unobstructed maintenance space for the internal components of the machine tool 101 and completely avoiding the disassembly steps of the traditional fixed isolation cover.

[0036] See Figure 1 , Figure 4 The transmission mechanism 2 includes a lead screw seat 201, which is fixedly connected to the machine tool 101. A slide groove 202 is provided at the front end of the lead screw seat 201, and a lead screw 203 is rotatably connected in the slide groove 202. A servo motor 204 is provided at the front end of the lead screw seat 201, and the output end of the servo motor 204 is fixedly connected to the lead screw 203. The lead screw seat 201 and the machine tool 101 are rigidly connected to form a stable base. The slide groove 202 at its front end restricts the radial displacement of the lead screw 203, ensuring that the lead screw 203 retains only rotational freedom. The output shaft of the servo motor 204 is coaxially fixed with the end of the lead screw 203, realizing zero-loss power transmission and providing a high-rigidity, low-vibration transmission path for the linear movement of the lead screw slide 205.

[0037] See Figure 1 , Figure 2 Two screw rod slides 205 are screwed onto the screw rod 203, and a mounting bracket 301 is installed between the two screw rod slides 205. The two screw rod slides 205 are symmetrically screwed onto a single screw rod 203 to form a double-point synchronous support structure. The two ends of the mounting bracket 301 are fixed between the two screw rod slides 205, so that the weight of the arc-shaped baffle 303 and the external impact force are evenly transmitted to the screw rod 203, effectively suppressing the torsional risk of single-point support and ensuring the rigidity requirements of the protective mechanism 3 during large-span displacement.

[0038] See Figure 1 , Figure 2 The top of the machine tool 101 is driven by two sets of first linear motors 102, which drive a set of second linear motors 103. A laser cutting head 104 is mounted on one side of the second linear motor 103. The two sets of first linear motors 102 are mounted in parallel on the top of the machine tool 101, and together drive the second linear motor 103 to move along the Y-axis. The second linear motor 103 carries the laser cutting head 104 and controls its X-axis displacement, forming a two-dimensional precision motion system with dual linear motors working together to meet the high-speed and high-precision cutting requirements of complex contours of office desk panels.

[0039] See Figure 1 , Figure 2 The rear end of the machine tool 101 is equipped with a pusher 105. The top of the pusher 105 is equipped with a needle bed 106 via a linear motor. The top of the needle bed 106 is used to place the office desk board. The pusher 105 is fixed to the rear end of the machine tool 101 as a movable base, and the needle bed 106 is mounted on its top via a linear motor. The surface of the needle bed 106 is densely covered with support needles, so that the office desk board is supported only by the discrete needle tips, which greatly reduces the probability of scratches. The weight of the board is evenly distributed to the needle bed 106, ensuring that there is no risk of deformation during the pushing process.

[0040] See Figure 1 The needle bed 106 is driven by a linear motor to slide along the pusher 105, which is used to feed the office desk board into the laser cutting working area of ​​the machine tool 101. The linear motor receives control commands and drives the needle bed 106 to slide along the preset track of the pusher 105. The office desk board supported on the top of the needle bed 106 moves accordingly until it enters directly below the laser cutting working area of ​​the machine tool 101. This process eliminates manual handling and ensures automatic alignment of the board positioning with the cutting coordinate system.

[0041] The implementation principle of this embodiment is as follows: First, when performing laser cutting of sheet metal, the Hall sensor 108 is activated. At this time:

[0042] Dynamic protection mode activated: The second linear motor 103 drives the laser cutting head 104 to move in the X / Y plane, driven by the first linear motor 102 in the Y direction and the second linear motor 103 in the X direction;

[0043] Inductive linkage control: The Hall sensor 108 fixed on the side of the second linear motor 103 and the sensing plate 305 fixed on the mounting bracket 301 are always at the same horizontal height, generating a continuous position sensing signal;

[0044] Precise follow-up protection: The sensing signal triggers the servo motor 204 to drive the lead screw 203 to rotate, so that the two lead screw slides 205 screwed on the lead screw 203 drive the mounting bracket 301 and the arc baffle 303 to move synchronously with the second linear motor 103 in the X direction in a precise follow-up protection.

[0045] Safety isolation and visualization: The arc-shaped baffle 303 with a black transparent structure is always in real time blocking the working path of the laser cutting head 104, blocking laser spatter and strong radiation light, while allowing the operator to observe the cutting status, achieving all-time protection without wearing a mask.

[0046] Secondly, when it is necessary to inspect or adjust the position of the protection:

[0047] Independent control mode activated: Hall sensor 108 is turned off, and sensor linkage is disabled;

[0048] External command drive: The servo motor 204 is directly controlled by an external controller;

[0049] Freely adjustable position: The servo motor 204 drives the lead screw 203 to rotate, so that the lead screw slide 205 drives the mounting bracket 301 and the arc-shaped baffle 303 to move independently along the lead screw axis, opening up the maintenance space or adjusting the initial protection position without disassembling structural components.

[0050] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A laser cutting apparatus for producing panels for office desks, characterized by: The device includes a main body (1), which includes a machine tool (101), a first linear motor (102) and a second linear motor (103). A protective mechanism (3) is installed on the outer surface of the main body (1) through a transmission mechanism (2). The protective mechanism (3) includes a mounting frame (301), which is fixedly connected to the lead screw slide (205) by bolts (302). An arc-shaped baffle (303) is provided on the mounting frame (301), which is a black transparent structure. A second connecting frame (304) is provided on the top of the mounting frame (301), and a sensor plate (305) is installed on the second connecting frame (304). A Hall sensor (108) is mounted on one side of the second linear motor (103) via a first connecting bracket (107), and the Hall sensor (108) and the sensing plate (305) are set at the same horizontal height.

2. The laser cutting device for producing office desks according to claim 1, characterized in that: When the Hall sensor (108) is activated, it can cause the Hall sensor (108) to sense the sensing plate (305) and is used to ensure that the lead screw slide (205) moves with the second linear motor (103) and to block the laser spatter and strong light emitted by the laser cutting head (104) in real time.

3. The laser cutting device for producing office desks according to claim 1, characterized in that: When the Hall sensor (108) is off, the servo motor (204) can be controlled by an external controller to manipulate the position of the mounting bracket (301).

4. The laser cutting device for producing office desks according to claim 1, characterized in that: The transmission mechanism (2) includes a lead screw seat (201), which is fixedly connected to the machine tool (101). A slide groove (202) is provided at the front end of the lead screw seat (201), and a lead screw (203) is rotatably connected in the slide groove (202). A servo motor (204) is provided at the front end of the lead screw seat (201), and the output end of the servo motor (204) is fixedly connected to the lead screw (203).

5. The laser cutting device for producing office desks according to claim 1, characterized in that: Two lead screw slides (205) are screwed onto the lead screw (203), and a mounting bracket (301) is installed between the two lead screw slides (205).

6. The laser cutting device for producing office desks according to claim 1, characterized in that: The top of the machine tool (101) is driven by two sets of first linear motors (102) to drive a set of second linear motors (103), and a laser cutting head (104) is installed on one side of the second linear motor (103).

7. The laser cutting device for producing office desks according to claim 1, characterized in that: The rear end of the machine tool (101) is provided with a pusher machine tool (105), and the top of the pusher machine tool (105) is equipped with a needle bed (106) via a linear motor. The top of the needle bed (106) is used to place the office desk board.

8. The laser cutting device for producing office desks according to claim 7, characterized in that: The placement needle bed (106) is driven by a linear motor to slide along the pushing machine tool (105) to feed the office desk board into the laser cutting working area of ​​the machine tool (101).

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