Automatic laser head protection device for laser cutting machine

Abstract

The utility model relates to the technical field of laser head protection, and discloses an automatic laser head protection device for a laser cutting machine, which comprises a laser device, the top of the periphery of the outer wall of the laser device is fixedly connected with connecting columns, the front sides of the connecting columns are fixedly connected with buttons, the periphery of the outer wall of the laser device is fixedly connected with first springs, and the first springs are fixedly connected with second springs. First protection plates are fixedly connected to the front sides of the multiple first springs, two base plates are fixedly connected to the top of the periphery of the outer wall of the laser, second springs are fixedly connected to the bottom of the periphery of the outer wall of the laser, and a controller is fixedly connected to the top of the laser. When the laser collides, the first protection plate extrudes the first spring and triggers the button, the base plate prevents the first protection plate from excessively rebounding, the second spring buffers, the button is electrically connected with the controller after being extruded, the circuit is rapidly cut off, the laser stops moving, and therefore the safety of the laser is guaranteed, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of laser head protection technology, and in particular to an automatic protection device for laser heads used in laser cutting machines. Background Technology

[0002] The laser head of a laser cutting machine is one of the core components of laser cutting equipment. It is a device that focuses the high-energy laser beam generated by the laser generator onto the surface of the material to be cut. Its function is similar to the blade of a traditional cutting tool. The laser head contains an optical focusing device. When the laser beam is transmitted from the laser generator, it is focused by a series of optical lenses. These lenses can change the propagation direction and focal length of the laser, so that the laser beam forms a highly concentrated spot of energy on the material surface. However, the laser head may collide with the workpiece during laser cutting, causing damage. Therefore, a protective device is required.

[0003] Automatic protection devices typically employ infrared or mechanical contact sensors around the laser head. When an object approaches the laser head within a certain distance or comes into contact with it, the sensor immediately sends a signal. However, the collision sensors in these automatic laser head protection devices are overly sensitive. During normal operation of the laser cutting machine, minor vibrations in the surrounding environment, contact with dust particles, or molten slag splashes during cutting can all be misinterpreted as collision events. Existing technology allows users to adjust the sensor sensitivity according to the actual working environment. In a relatively stable and clean working environment, the sensitivity can be appropriately increased to ensure timely detection of potential collisions. In noisier environments with more interference, the sensitivity can be reduced to decrease false triggering. However, even with reduced sensitivity, the laser head can still experience minor collisions in actual use. These minor collisions can damage the laser head, leading to frequent replacements and increased production costs. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automatic protection device for the laser head of a laser cutting machine, which aims to improve the problem in the prior art where the laser head still experiences slight collisions due to reduced sensitivity. These slight collisions can damage the laser head, leading to the need for frequent replacements and increased production costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic laser head protection device for a laser cutting machine, comprising a laser, wherein connecting columns are fixedly connected to the top of the outer walls of the laser, buttons are fixedly connected to the front of the connecting columns, springs are fixedly connected to the outer walls of the laser, protective plates are fixedly connected to the front of the springs, two pads are fixedly connected to the top of the outer walls of the laser, springs are fixedly connected to the bottom of the outer walls of the laser, a controller is fixedly connected to the top of the laser, and protective mechanisms are provided on the left and right sides of the bottom of the protective plates, the protective mechanisms being used to increase the protection area of ​​the laser head.

[0006] As a further description of the above technical solution:

[0007] The protective mechanism includes multiple hinges, each of which is fixedly connected to the bottom of the outer wall of the first protective plate. The bottom rear side of each of the first protective plates is fixedly connected to a second protective plate. The bottom of each of the second protective plates has a fixing block. The top rear side of each of the second protective plates has a groove fixedly connected to it. The rear side of each groove has a locking block fixedly connected to it.

[0008] As a further description of the above technical solution:

[0009] A connecting plate is fixedly connected to the top front side of the laser, and a warning sign is fixedly connected to the front side of each connecting plate.

[0010] As a further description of the above technical solution:

[0011] Multiple flexible hoses are fixedly connected to the front side of each of the multiple protective plates, and all of the multiple flexible hoses are designed to be rounded.

[0012] As a further description of the above technical solution:

[0013] A lamp holder is fixedly connected to the top right side of the laser, and an indicator light is fixedly connected to the top of the lamp holder.

[0014] As a further description of the above technical solution:

[0015] The multiple connecting posts are fixedly connected to the outer wall of the laser at equal intervals, and the multiple springs correspond to the positions of the connecting posts.

[0016] As a further description of the above technical solution:

[0017] The adjacent protective plates are fixedly connected at equal intervals to the front side of the spring, and the adjacent pads are fixedly connected at equal intervals to the left and right sides of the outer wall of the laser.

[0018] As a further description of the above technical solution:

[0019] The multiple hinges are equidistantly fixed to the bottom of the outer wall of the protective plate, and the diameter of the multiple fixing blocks is larger than the diameter of the locking block.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when the laser is hit by a collision, the protective plate 1 squeezes the spring 1 and touches the button. The pad prevents the protective plate 1 from rebounding excessively, and the bottom spring 2 also participates in buffering. After the button is squeezed, it is electrically connected to the controller, which quickly cuts off the circuit and stops the laser from moving, minimizing the collision damage, thereby ensuring the safety of the laser and reducing production costs.

[0022] 2. In this utility model, when the laser is hit or needs to be reinforced, the external force pushes the second protective plate to rotate around the hinge. During the rotation, the bottom fixing block of the second protective plate and the top rear locking block approach each other. When it is rotated to a specific angle, the locking block is precisely embedded in the groove of the fixing block to achieve a stable engagement, so that the first protective plate and the second protective plate are tightly connected, and the buffer is enhanced from the bottom, thereby increasing the protection area. Attached Figure Description

[0023] Figure 1 This is a perspective view of the automatic laser head protection device for laser cutting machines proposed in this utility model;

[0024] Figure 2 This is a front view of the automatic laser head protection device for laser cutting machines proposed in this utility model;

[0025] Figure 3 This is a right view of the automatic laser head protection device for laser cutting machines proposed in this utility model;

[0026] Figure 4 This is an exploded view of the button of the automatic laser head protection device for laser cutting machines proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the groove structure of the automatic protection device for the laser head of the laser cutting machine proposed in this utility model.

[0028] Legend:

[0029] 1. Laser; 2. Protective mechanism; 201. Hinge; 202. Protective plate two; 203. Fixing block; 204. Groove; 205. Locking block; 3. Connecting post; 4. Button; 5. Spring one; 6. Protective plate one; 7. Pad; 8. Spring two; 9. Controller; 10. Connecting plate; 11. Warning sign; 12. Hoses; 13. Lamp holder; 14. Indicator light. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0031] Reference Figure 1 and Figure 4 This utility model provides an embodiment of an automatic laser head protection device for a laser cutting machine, comprising a laser 1, with connecting posts 3 fixedly connected to the top of the outer wall of the laser 1, buttons 4 fixedly connected to the front of the connecting posts 3, springs 5 ​​fixedly connected to the outer wall of the laser 1, and protective plates 6 fixedly connected to the front of the springs 5. When the laser 1 collides with the laser, the protective plates 6 squeeze the springs 5, causing the buttons 4 on the front of the connecting posts 3 to be squeezed inside. Two pads 7 are fixedly connected to the top of the outer wall of the laser 1 to protect the protective plates 6 from collisions with the laser 1. Springs 8 are fixedly connected to the bottom of the outer wall of the laser 1. When the bottom of the protective plates 6 squeezes the springs 8, the top of the protective plates 6 also squeezes the buttons 4. A controller 9 is fixedly connected to the top of the laser 1. The buttons 4 are electrically connected to the controller 9. When the buttons 4 are triggered, the controller 9 cuts off the circuit, and the laser 1 stops moving. Protective mechanisms 2 are provided on the left and right sides of the bottom of the multiple protective plates 6 to increase the protection area of ​​the laser head.

[0032] Specifically, connecting posts 3 are evenly distributed around the top of the outer wall of laser 1. Multiple connecting posts 3 have buttons 4 fixed to their front sides, which play a crucial triggering role. Springs 5 ​​around the outer wall of laser 1 are connected to protective plates 6. Springs 5 ​​provide buffering force for the protective action. Under normal conditions, protective plates 6 maintain a certain distance from the outer wall of laser 1 under the support of springs 5. Once laser 1 collides, protective plates 6 are forced to compress springs 5. During the contraction of springs 5, protective plates 6 will contact and compress the buttons 4 on the front side of the connecting posts 3. The two pads 7 at the top of the outer wall of laser 1 can effectively prevent protective plates 6 from excessively colliding with laser 1 itself, avoiding additional damage. Springs 8 at the bottom also play a role in the collision. Protective plates 6 will compress springs 8 at the bottom and also compress buttons 4 at the top. The controller 9 located at the top of laser 1 is electrically connected to buttons 4. As soon as buttons 4 are triggered, controller 9 will quickly cut off the circuit, causing laser 1 to stop moving immediately, thereby protecting laser 1 from further damage.

[0033] Reference Figure 5The protection mechanism 2 includes multiple hinges 201, which are fixedly connected to the bottom of the outer wall of the first protection plate 6. The bottom rear side of the first protection plate 6 is fixedly connected to the second protection plate 202. The second protection plate 202 rotates through the hinges 201. The bottom of the second protection plate 202 is provided with a fixing block 203. The top rear side of the second protection plate 202 is fixedly connected with a groove 204. The rear side of the groove 204 is fixedly connected with a locking block 205. When the second protection plate 202 rotates, the locking block 205 is locked into the groove 204 at the bottom of the fixing block 203 to form a locking.

[0034] Specifically, multiple hinges 201 are adjacent to each other, and their connecting ends are all fixed to the bottom of the outer wall of the first protective plate 6. The second protective plate 202 is fixed to the bottom rear side of the first protective plate 6. The second protective plate 202 can rotate flexibly by means of the hinges 201. A fixing block 203 is set at the bottom of the second protective plate 202, and a groove 204 is fixed at the top rear side. A locking block 205 is further connected to the rear side of the groove 204. When encountering a collision or needing to strengthen protection, the second protective plate 202 rotates around the hinges 201 until the locking block 205 is precisely locked into the groove 204 at the bottom of the fixing block 203, forming a stable engagement, which further improves the protection effect of the laser 1.

[0035] Reference Figure 1 and Figure 2 A connecting plate 10 is fixedly connected to the top front side of the laser 1. A warning sign 11 is fixedly connected to the front side of each connecting plate 10 to remind people to pay attention to safety. Multiple flexible hoses 12 are fixedly connected to the front side of each of the multiple protective plates 6. The multiple flexible hoses 12 are all rounded to reduce the impact force. A lamp holder 13 is fixedly connected to the top right side of the laser 1. An indicator light 14 is fixedly connected to the top of the lamp holder 13. When there is a collision, the light will illuminate to remind the operator.

[0036] Specifically, a warning sign 11 is connected to the top front of the laser 1 via a connecting plate 10. Its conspicuous markings constantly remind people around to pay attention to safety and avoid accidental approach. The front of the protective plate 6 is equipped with multiple smoothly designed flexible tubes 12, which can effectively buffer the impact force and reduce the risk of equipment damage in the event of a collision. On the top right side of the laser 1, the lamp holder 13 firmly supports the indicator light 14. Once a collision occurs, the indicator light 14 will light up immediately, providing a clear and conspicuous warning to the operator so that they can respond quickly and ensure operational safety and equipment integrity.

[0037] Reference Figure 4 and Figure 5Multiple connecting posts 3 are fixedly connected to the outer wall of the laser 1 at equal intervals. Multiple springs 5 ​​are positioned corresponding to the connecting posts 3. Multiple protective plates 6 are fixedly connected to the front side of the springs 5 ​​at equal intervals. Multiple pads 7 are fixedly connected to the left and right sides of the outer wall of the laser 1 at equal intervals. Multiple hinges 201 are fixedly connected to the bottom of the outer wall of the protective plates 6 at equal intervals. The diameter of multiple fixing blocks 203 is larger than the diameter of the locking blocks 205.

[0038] Specifically, multiple connecting columns 3 are equidistantly arranged around the outer wall of the laser 1, working in conjunction with springs 5 ​​at corresponding positions. On the front side of springs 5, multiple protective plates 6 are also equidistantly arranged to ensure all-round protection. On the left and right sides of the outer wall of the laser 1, multiple pads 7 are also equidistantly distributed to provide buffer protection. At the bottom of the outer wall of the protective plate 6, multiple hinges 201 are equidistantly fixed to provide support for the rotation of the protective plate 202. The diameter of the fixing block 203 is larger than that of the locking block 205 to ensure that the locking block 205 can be accurately engaged and achieve a stable connection.

[0039] Working principle: Connecting posts 3 are evenly distributed around the top of the outer wall of laser 1. The buttons 4 fixed to the front of the multiple connecting posts 3 are the key trigger points of the entire protection mechanism. Springs 5 ​​are connected around the outer wall of laser 1, and the other end of springs 5 ​​is connected to protective plate 6. Under normal circumstances, the protective plate 6 maintains a certain distance from the outer wall of laser 1 under the elastic support of springs 5, so as not to interfere with the normal operation of laser 1. Once laser 1 is hit by a collision, the external impact force puts force on the protective plate 6, which in turn squeezes springs 5. During the process of springs 5 ​​contracting and deforming, the protective plate 6 squeezes the front of the connecting posts 3. The button 4 on the side and the two pads 7 on the top of the outer wall of the laser 1 can prevent the excessive displacement of the protective plate 6 when it rebounds, thus preventing secondary damage to the laser 1. The spring 8 at the bottom also participates in buffering during the collision. When the bottom of the protective plate 6 squeezes the spring 8, the top will also squeeze the button 4. Since the controller 9 located at the top of the laser 1 is electrically connected to the button 4, as long as the button 4 is triggered, the controller 9 will receive a signal instantly and quickly cut off the circuit, so that the laser 1 will stop moving immediately, thereby controlling the damage caused by the collision to a minimum and ensuring the safe and stable operation of the laser 1.

[0040] Furthermore, multiple hinges 201 are adjacent to each other, and their connecting ends are firmly fixed to the bottom of the outer wall of the first protective plate 6. The second protective plate 202, which is fixed to the bottom of the rear side of the first protective plate 6, has the ability to rotate flexibly by relying on the hinges 201. When the laser 1 is hit by a collision or when protection needs to be strengthened, the external force causes the second protective plate 202 to rotate around the hinges 201. During the rotation, the fixing block 203 at the bottom of the second protective plate 202 gradually approaches the rear top groove 204 and its connected locking block 205 until it rotates to a specific angle. Under the guidance of the mechanical structure, the locking block 205 is precisely embedded in the groove 204 at the bottom of the fixing block 203, achieving a stable engagement. This makes the second protective plate 202 and the first protective plate 6 form a tighter and more stable protective structure, further buffering the impact force from the bottom, comprehensively improving the protection effect of the laser 1, and minimizing the risk of damage.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic laser head protection device for a laser cutting machine, comprising a laser (1), characterized in that: The laser (1) has connecting posts (3) fixedly connected to the top of its outer wall. Buttons (4) are fixedly connected to the front of each of the connecting posts (3). Springs (5) are fixedly connected to the top of the outer wall of the laser (1). Protective plates (6) are fixedly connected to the front of each of the springs (5). Two pads (7) are fixedly connected to the top of the outer wall of the laser (1). Springs (8) are fixedly connected to the bottom of the outer wall of the laser (1). A controller (9) is fixedly connected to the top of the laser (1). Protective mechanisms (2) are provided on the left and right sides of the bottom of each of the protective plates (6). The protective mechanisms (2) are used to increase the protection area of ​​the laser head.

2. The automatic laser head protection device for laser cutting machines according to claim 1, characterized in that: The protective mechanism (2) includes multiple hinges (201), which are fixedly connected to the bottom of the outer wall of the first protective plate (6). The bottom of the rear side of the first protective plate (6) is fixedly connected to the second protective plate (202). The bottom of the second protective plate (202) is provided with a fixing block (203). The top of the rear side of the second protective plate (202) is fixedly connected to a groove (204). The rear side of the groove (204) is fixedly connected to a locking block (205).

3. The automatic laser head protection device for laser cutting machines according to claim 1, characterized in that: A connecting plate (10) is fixedly connected to the top front side of the laser (1), and a warning sign (11) is fixedly connected to the front side of each connecting plate (10).

4. The automatic laser head protection device for laser cutting machines according to claim 1, characterized in that: Multiple hoses (12) are fixedly connected to the front side of each of the multiple protective plates (6), and the multiple hoses (12) are all of a smooth design.

5. The automatic laser head protection device for laser cutting machines according to claim 1, characterized in that: A lamp holder (13) is fixedly connected to the top right side of the laser (1), and an indicator light (14) is fixedly connected to the top of the lamp holder (13).

6. The automatic laser head protection device for laser cutting machines according to claim 1, characterized in that: The multiple connecting posts (3) are fixedly connected at equal intervals around the outer wall of the laser (1), and the multiple springs (5) correspond to the positions of the connecting posts (3).

7. The automatic laser head protection device for laser cutting machines according to claim 1, characterized in that: The adjacent protective plates (6) are fixedly connected at equal intervals to the front side of the spring (5), and the adjacent pads (7) are fixedly connected at equal intervals to the left and right sides of the outer wall of the laser (1).

8. The automatic laser head protection device for laser cutting machines according to claim 2, characterized in that: The multiple hinges (201) are fixedly connected at equal intervals to the bottom of the outer wall of the protective plate (6), and the diameter of the multiple fixing blocks (203) is larger than the diameter of the locking block (205).

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