Self-resetting cutting head anti-collision structure and laser cutting machine

Abstract

The invention discloses a self-resetting cutting head anti-collision structure and a laser cutting machine. The cutting head anti-collision structure comprises a cutting head mounting piece, a magnetic base, a magnetic suction plate, an inductive switch, a positioning pin and a reset spring. The magnetic base is located in the cutting head installation piece, and the bottom face of the magnetic base is attached to the top face of the magnetic suction plate. One end of each positioning pin is located in the magnetic base, and the other end of each positioning pin is installed in the magnetic suction plate. The multiple inductive switches are installed in the cutting head installation piece, the number of the inductive switches is the same as that of the positioning pins, and the bottom face of each inductive switch makes contact with the top end of one positioning pin. One end of each reset spring is installed on the cutting head installation piece, and the other end of each reset spring is installed on the magnetic suction plate. The laser cutting machine comprises the cutting head anti-collision structure and the cutting head. According to the cutting head anti-collision structure, the cutting head anti-collision function of the laser cutting machine and self-resetting after collision can be achieved.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting machine tools, specifically relating to a self-resetting cutting head anti-collision structure and a laser cutting machine. Background Technology

[0002] In actual use, laser cutting machines have a high probability of colliding with the cutting head and the sheet metal. Minor collisions can damage the nozzle or ceramic body of the cutting head, while severe collisions can damage the entire cutting head. Therefore, the anti-collision function of the cutting head is particularly necessary. Currently, a few cutting head products in the industry have anti-collision designs, but the effects are not ideal. Either the anti-collision effect is poor, or after a collision, it requires operator intervention and the recovery accuracy is poor.

[0003] Patent CN202021096125.6 discloses a magnetic anti-collision head device for a laser cutting machine. This device uses a strong magnet protruding from the anti-collision connecting plate to a suction groove on the laser head connecting plate, effectively fixing the laser head during normal operation and ensuring high-speed lateral movement for cutting. When the laser head experiences an impact, the laser head connecting plate and the anti-collision connecting plate can detach promptly, effectively protecting the laser head and preventing damage. However, once the anti-collision function is triggered, the device must be reinstalled before continued use, and operators cannot immediately detect the collision. Summary of the Invention

[0004] The purpose of this invention is to provide a self-resetting anti-collision structure for a cutting head and a laser cutting machine. This self-resetting anti-collision structure can automatically reset itself after each triggering of the anti-collision function, automatically rearrange the anti-collision function, and has good anti-collision effect and high recovery accuracy. When applied to a laser cutting machine, it can solve the problems in the prior art.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows:

[0006] A self-resetting anti-collision structure for a cutting head includes a cutting head mounting component, a magnetic base, a magnetic suction plate, inductive switches, positioning pins, and reset springs. The magnetic base is located inside the cutting head mounting component, and the bottom surface of the magnetic base is in contact with the top surface of the magnetic suction plate. One end of each of the positioning pins is located inside the magnetic base, and the other end is installed inside the magnetic suction plate. A plurality of inductive switches are installed inside the cutting head mounting component, and the number of inductive switches and positioning pins is the same, with the bottom surface of each inductive switch contacting the top surface of a positioning pin. One end of each of the reset springs is installed on the cutting head mounting component, and the other end is installed on the magnetic suction plate.

[0007] By setting multiple inductive switches and positioning pins, with the same number and corresponding positions, when the cutting head mounted on the cutting head mounting component collides, the collision will cause the inductive switches and positioning pins to become misaligned, thus enabling the anti-collision structure to sense the collision. Furthermore, a reset spring is provided, which, combined with the magnetic effect of the anti-collision structure itself, allows the structure to self-reset promptly after a collision. During self-reset, the magnetic correction of the positions by the magnetic suction plate and magnetic base ensures that the inductive switches and positioning pins return to the same positional relationship as before the collision, guaranteeing the recovery accuracy of the anti-collision structure.

[0008] Preferably, the bottom opening of the cutting head mounting component; the bottom surface of the magnetic base is flush with the bottom surface of the cutting head mounting component; the bottom surfaces of the plurality of inductive switches are flush with the top surface of the magnetic base; the plurality of reset springs pass sequentially through the magnetic plate, the magnetic base, and the cutting head mounting component, and one end of each reset spring is fixed to the outside of the top surface of the cutting head mounting component, while the other end is located outside the bottom surface of the magnetic plate.

[0009] Preferably, the anti-collision structure of the cutting head further includes a permanent magnet; the bottom of the magnetic base is provided with a plurality of permanent magnet mounting holes; the plurality of permanent magnets are installed one-to-one in the plurality of permanent magnet mounting holes, and the side of the permanent magnet facing the magnetic suction plate is in contact with the top surface of the magnetic suction plate.

[0010] This configuration further enhances the magnetic correction capability of the anti-collision structure with permanent magnets.

[0011] Preferably, one end of the positioning pin is a countersunk end and the other end is a threaded end; the magnetic seat has multiple countersunk holes; the magnetic suction plate has multiple threaded holes; the countersunk end is located inside the countersunk hole; and the threaded end is fixedly installed inside the threaded hole.

[0012] This setup secures the threaded end of the locating pin to the magnetic plate, while the countersunk end of the locating pin prevents the magnetic seat from shifting too much when the cutting head collides, further improving reset accuracy.

[0013] Preferably, the cutting head mounting component has a light-transmitting hole at its center; the magnetic base has a light-transmitting hole at its center; a hollow conical column is convexly provided in the middle of the top surface of the magnetic suction plate; the centers of the light-transmitting hole, the light-transmitting hole, and the hollow conical column are correspondingly positioned; the size of the light-transmitting hole is larger than the size of the light-transmitting hole; the upper half of the hollow conical column is located within the light-transmitting hole and fits against each other; the lower half of the hollow conical column is located within the light-transmitting hole and fits against each other.

[0014] This design ensures that the anti-collision structure will not affect the laser beam path and cutting process of the cutting head.

[0015] Preferably, the anti-collision structure of the cutting head further includes a sealing ring; a plurality of the sealing rings are sleeved on the outside of the light-transmitting hole or the light-transmitting hole.

[0016] This design ensures a tight seal between the hollow cone column and the light-transmitting holes, as well as between the light-transmitting and hole pairs.

[0017] Preferably, a first fixing member is provided on the outer surface of the top surface of the cutting head mounting component; a second fixing member is provided on the outer surface of the bottom surface of the magnetic suction plate; a first mounting hook is provided at one end of the reset spring; a second mounting hook is provided at the other end of the reset spring; the first mounting hook is connected to the first fixing member; and the second mounting hook is connected to the second fixing member.

[0018] This design fixes the positions of both ends of the return spring, thus enabling the return function of this anti-collision structure.

[0019] Preferably, the cutting head mounting component is provided with multiple switch holes; one end of each of the multiple inductive switches is installed in one-to-one within the switch hole; the other end of each inductive switch is provided with a signal terminal; the signal terminal is located outside the top surface of the cutting head mounting component.

[0020] This configuration allows multiple sensor switches to be partially located within the cutting head mounting assembly, and further limits the movement of these switches. When the signal terminal is connected to the control center of the laser cutting machine, the control center can receive signals indicating when the sensor switches and positioning pins collide or become misaligned, enabling the laser cutting machine to issue an alarm to notify the operator.

[0021] Preferably, the anti-collision structure of the cutting head further includes a base; the top end of the base is connected to the bottom end of the cutting head mounting component; the magnetic suction plate is located inside the base; the anti-collision structure of the cutting head further includes a first mounting screw and a second mounting screw; the magnetic base is installed inside the cutting head mounting component by the first mounting screw; the magnetic suction plate is installed inside the base by the second mounting screw.

[0022] With this configuration, the base and cutting head mounting components can act as the external integral part of the anti-collision structure, providing further protection for the internal parts. Furthermore, the cutting head mounting components and magnetic base form the upper half of the anti-collision structure, while the base and magnetic plate form the lower half. When the cutting head collides, only the contact surfaces of the magnetic base and magnetic plate are misaligned.

[0023] The present invention also provides a laser cutting machine, including the above-mentioned self-resetting cutting head anti-collision structure; the laser cutting machine further includes a cutting head; the cutting head anti-collision structure is mounted on the cutting head through the cutting head mounting component.

[0024] Beneficial effects:

[0025] This invention discloses a self-resetting anti-collision structure for a cutting head and a laser cutting machine. The anti-collision structure utilizes multiple inductive switches and positioning pins, all in equal numbers and corresponding positions. When a collision occurs between the cutting head and the mounting component, the inductive switches and positioning pins are misaligned, allowing the anti-collision structure to detect the collision. Furthermore, a reset spring, passing sequentially through a magnetic plate, a magnetic base, and the cutting head mounting component, combined with the structure's own magnetic properties, enables timely self-resetting after a collision. During self-resetting, the magnetic correction by the magnetic plate and magnetic base restores the inductive switches and positioning pins to their pre-collision positional relationship, ensuring the structure's accuracy. This anti-collision structure, when applied to a laser cutting machine, solves the problems of poor anti-collision performance, the need for manual restoration, and poor restoration accuracy found in previous anti-collision structures. Attached Figure Description

[0026] Figure 1 The figure shown is an external structural diagram of a self-resetting cutting head anti-collision structure according to this embodiment;

[0027] Figure 2 As shown Figure 1 The first exploded view;

[0028] Figure 3 As shown Figure 1 The second exploded diagram;

[0029] Figure 4 As shown Figure 1 Parts drawings;

[0030] Figure 5 As shown Figure 1 The structural diagram of the magnetic chuck.

[0031] Figure Labels

[0032] 10. Magnetic base; 11. Light-transmitting hole; 12. Countersunk hole; 13. Permanent magnet mounting hole; 14. Light-transmitting hole; 20. Magnetic suction plate; 21. Hollow conical column; 22. Threaded hole; 30. Inductive switch; 31. Signal terminal; 40. Positioning pin; 50. Return spring; 51. First fixing component; 52. Second fixing component; 53. First mounting hook; 54. Second mounting hook; 60. Permanent magnet; 70. Sealing ring; 81. Limiting post; 82. First mounting screw; 91. Second mounting screw; 92. Third mounting screw; 100. Cutting head mounting component; 101. Switch hole; 200. Base; 201. Side hole. Detailed Implementation

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0034] The technical solution of the present invention will be described in detail below with specific embodiments.

[0035] Example 1

[0036] like Figures 1-5 As shown, this embodiment presents a self-resetting anti-collision structure for a cutting head, installed on the cutting head of a laser cutting machine. This anti-collision structure includes a cutting head mounting component 100, a magnetic base 10, a magnetic suction plate 20, inductive switches 30, positioning pins 40, and a reset spring 50. The cutting head mounting component 100 has a bottom opening. The magnetic base 10 is located within the cutting head mounting component 100, and the bottom surface of the magnetic base 10 is flush with the bottom surface of the cutting head mounting component 100. Multiple inductive switches 30 are installed within the cutting head mounting component 100, and the bottom surfaces of the multiple inductive switches 30 are flush with the top surface of the magnetic base 10. The bottom surface of the force base 10 is in contact with the top surface of the magnetic suction plate 20; one end of a plurality of positioning pins 40 is located inside the magnetic force base 10, and the other end is installed inside the magnetic suction plate 20; the number of induction switches 30 and positioning pins 40 is the same, and the bottom surface of each induction switch 30 is in contact with the top end of a positioning pin 40; one end of a plurality of return springs 50 passes through the magnetic suction plate 20, the magnetic force base 10, and the cutting head mounting part 100 in sequence, and the end of one end of the return spring 50 is fixed to the outside of the top surface of the cutting head mounting part 100, and the end of the other end of the return spring 50 is fixed to the outside of the bottom surface of the magnetic suction plate 20.

[0037] This embodiment presents a self-resetting anti-collision structure for a cutting head. A cutting head mounting component 100 is installed onto the cutting head of a laser cutting machine. Multiple inductive switches 30 and positioning pins 40 are provided, with the same number and corresponding positions. When the cutting head collides, the collision causes the inductive switches 30 and positioning pins 40 to shift, thus enabling the anti-collision structure to sense the collision. A reset spring 50 is provided, passing sequentially through a magnetic plate 20, a magnetic base 10, and the cutting head mounting component 100. Combined with the magnetic properties of the anti-collision structure itself, it can promptly self-reset after a collision. During self-reset, the magnetic correction of the positions by the magnetic plate 20 and the magnetic base 10 restores the inductive switches 30 and positioning pins 40 to their original positions before the collision, ensuring the recovery accuracy of the anti-collision structure.

[0038] Preferably, the anti-collision structure of the cutting head also includes a permanent magnet 60; the bottom of the magnetic base 10 is provided with a plurality of permanent magnet mounting holes 13; the plurality of permanent magnets 60 are installed one-to-one in the plurality of permanent magnet mounting holes 13, and the side of the permanent magnet 60 facing the magnetic suction plate 20 is in contact with the top surface of the magnetic suction plate 20.

[0039] This embodiment provides a self-resetting cutting head anti-collision structure. Through this configuration, the permanent magnet 60 can further enhance the magnetic correction capability of the anti-collision structure.

[0040] Preferably, one end of the positioning pin 40 is a countersunk end and the other end is a threaded end; the magnetic base 10 is provided with multiple countersunk holes 12; the magnetic suction plate 20 is provided with multiple threaded holes 22; the countersunk end is located in the countersunk hole 12; and the threaded end is fixedly installed in the threaded hole 22.

[0041] This embodiment provides a self-resetting anti-collision structure for the cutting head. Through this setting, the threaded end of the positioning pin 40 is fixedly installed inside the magnetic plate, and the countersunk end of the positioning pin 40 can prevent the magnetic seat 10 from undergoing too severe positional displacement when the cutting head collides, and further improve the reset accuracy.

[0042] Preferably, the cutting head mounting component 100 has a light-transmitting hole 11 at its center; the magnetic base 10 has a light-transmitting hole 14 at its center; a hollow conical column 21 is convexly provided in the middle of the top surface of the magnetic suction plate 20; the center of the light-transmitting hole 11, the center of the light-transmitting hole 14, and the center of the hollow conical column 21 are positioned correspondingly; the size of the light-transmitting hole 14 is larger than the size of the light-transmitting hole 11; the upper half of the hollow conical column 21 is located inside the light-transmitting hole 11 and fits against each other; the lower half of the hollow conical column 21 is located inside the light-transmitting hole 14 and fits against each other.

[0043] This embodiment provides a self-resetting anti-collision structure for the cutting head. This design ensures that the anti-collision structure will not affect the laser beam path and cutting process of the cutting head.

[0044] Preferably, the anti-collision structure of the cutting head also includes a sealing ring 70; a plurality of sealing rings 70 are sleeved on the outside of the light-transmitting hole 11 or the light-transmitting hole 14.

[0045] The self-resetting cutting head anti-collision structure of this embodiment ensures the fit and sealing of the hollow cone column 21, the light-transmitting hole 11, and the light-transmitting mating hole 14.

[0046] Preferably, a first fixing member 51 is provided on the outer surface of the top surface of the cutting head mounting member 100; a second fixing member 52 is provided on the outer surface of the bottom surface of the magnetic suction plate 20; a first mounting hook 53 is provided at one end of the return spring 50; a second mounting hook 54 is provided at the other end of the return spring 50; the first mounting hook 53 is connected to the first fixing member 51; and the second mounting hook 54 is connected to the second fixing member 52.

[0047] This embodiment provides a self-resetting cutting head anti-collision structure. By setting the two ends of the reset spring 50 in this way, the reset function of this anti-collision structure can be realized.

[0048] Preferably, the cutting head mounting component 100 is provided with a plurality of switch holes 101; one end of a plurality of inductive switches 30 is installed in a switch hole 101 one by one.

[0049] This embodiment provides a self-resetting anti-collision structure for the cutting head. Through this arrangement, multiple inductive switches 30 are only partially located within the cutting head mounting member 100, and the inductive switches 30 located within the cutting head mounting member 100 are further limited.

[0050] Preferably, the other end of the inductive switch 30 is provided with a signal terminal 31; the signal terminal 31 is located outside the top surface of the cutting head mounting 100.

[0051] This embodiment provides a self-resetting anti-collision structure for the cutting head. With this configuration, when the signal terminal 31 is connected to the control center of the laser cutting machine, the control center can receive a signal when the inductive switch 30 and the positioning pin 40 collide and become misaligned, so that the laser cutting machine can issue an alarm to notify the staff.

[0052] Preferably, the anti-collision structure of the cutting head also includes a base 200; the top of the base 200 is connected to the bottom of the cutting head mounting component 100; the magnetic suction plate 20 is located inside the base 200.

[0053] This embodiment provides a self-resetting cutting head anti-collision structure. With this configuration, the base 200 and the cutting head mounting component 100 can serve as the external whole of the anti-collision structure, further protecting the internal parts of the anti-collision structure.

[0054] Preferably, the anti-collision structure of the cutting head also includes a first mounting screw 82 and a second mounting screw 91; the magnetic base 10 is installed in the cutting head mounting part 100 by the first mounting screw 82; and the magnetic suction plate 20 is installed in the base 200 by the second mounting screw 91.

[0055] This embodiment provides a self-resetting anti-collision structure for a cutting head. With this configuration, the cutting head mounting component 100 and the magnetic base 10 form the upper half of the anti-collision structure, while the base 200 and the magnetic suction plate 20 form the lower half. When the cutting head collides, only the contact surfaces of the magnetic base 10 and the magnetic suction plate 20 are misaligned.

[0056] Specifically, the number of permanent magnets 60 in this embodiment is adjusted according to the magnitude of the anti-collision force required by this anti-collision structure; the light-transmitting hole 11 is conical, which can form a positioning function with the hollow conical column 21 on the magnetic suction plate 20; the permanent magnets 60 are evenly distributed around the center of the light-transmitting hole 11. In this embodiment, the magnetic base 10 is provided with two countersunk holes 12, and the magnetic suction plate 20 is provided with two threaded holes 22, that is, there are also two induction switches 30 and positioning pins 40, which are symmetrical about the center of the light-transmitting hole 11.

[0057] Specifically, the magnetic plate 20 in this embodiment is made of carbon steel; the reset spring 50 in this embodiment is set to 4, which are also evenly and symmetrically distributed with the center of the light-transmitting hole 11 as the center.

[0058] In actual operation, when the cutting head does not collide, the magnetic plate 20 and the magnetic seat 10 are tightly attracted due to the action of the permanent magnet 60; the reset spring 50 is in a slightly stretched state; at this time, the bottom surface of the induction switch 30 just contacts the top surface of the positioning pin 40, and the signal terminal 31 of the induction switch 30 is connected to the control center of the laser cutting machine, at which time the laser cutting machine is in normal working condition.

[0059] When the cutting head collides, under the action of external force, the contact surfaces of the magnetic suction plate 20 and the magnetic base 10 separate, the reset spring 50 is stretched, the bottom surface of the induction switch 30 disengages from the top surface of the positioning pin 40, and the signal terminal 31 of the induction switch 30 sends an alarm signal to the control center to indicate that a collision has occurred. At this time, the laser cutting machine stops working.

[0060] After the cutting head is removed from the colliding object, the magnetic suction plate 20 will be pulled back in the reset direction under the action of the return spring 50, so that the magnetic suction plate 20 and the magnetic base 10 are reset, the magnetic force is restored, and the magnetic suction plate 20 and the magnetic base 10 are tightly attached. The induction switch 30 is also reset with the positioning pin 40, the bottom surface of the induction switch 30 re-contacts the top surface of the positioning pin 40, and the signal terminal 31 of the induction switch 30 sends an alarm cancellation signal to the control center. At this time, the laser cutting machine is in normal working condition.

[0061] In this embodiment, the inductive switch 30 and the positioning pin 40 are high-precision sensing devices. Even if the cutting head experiences a minor collision, an alarm signal can be issued in time, causing the laser cutting machine to stop working promptly, thus preventing damage to the cutting head and achieving a good anti-collision effect.

[0062] Example 2

[0063] This embodiment of a laser cutting machine includes the self-resetting cutting head anti-collision structure of Embodiment 1;

[0064] Preferably, the laser cutting machine also includes a cutting head; the cutting head anti-collision structure is mounted on the cutting head via the cutting head mounting component 100.

[0065] The foregoing detailed embodiments of the self-resetting cutting head anti-collision structure and laser cutting machine provided by this invention. Specific examples have been used to illustrate the principles and implementation methods of this invention, and the descriptions of the embodiments above are merely for the purpose of helping to understand the core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A self-resetting anti-collision structure for a cutting head, characterized in that, The device includes a cutting head mounting component (100), a magnetic base (10), a magnetic suction plate (20), a sensor switch (30), a positioning pin (40), and a return spring (50). The magnetic base (10) is located inside the cutting head mounting component (100). The bottom surface of the magnetic base (10) and the top surface of the magnetic suction plate (20) are in contact. One end of each of the positioning pins (40) is located inside the magnetic base (10), and the other end is installed inside the magnetic suction plate (20). A plurality of sensor switches (30) are installed inside the cutting head mounting component (100), and the number of sensor switches (30) and positioning pins (40) is the same, and the bottom surface of each sensor switch (30) is in contact with the top end of a positioning pin (40). One end of each of the return springs (50) is installed on the cutting head mounting component (100), and the other end is installed on the magnetic suction plate (20).

2. The anti-collision structure for the cutting head according to claim 1, characterized in that, The bottom opening of the cutting head mounting component (100); the bottom surface of the magnetic base (10) is flush with the bottom surface of the cutting head mounting component (100); the bottom surfaces of the plurality of inductive switches (30) are flush with the top surface of the magnetic base (10); the plurality of reset springs (50) pass through the magnetic suction plate (20), the magnetic base (10), and the cutting head mounting component (100) in sequence, and one end of the plurality of reset springs (50) is fixed to the outside of the top surface of the cutting head mounting component (100), and the other end is located outside the bottom surface of the magnetic suction plate (20).

3. The anti-collision structure for the cutting head according to claim 2, characterized in that, The anti-collision structure of the cutting head also includes a permanent magnet (60); the bottom of the magnetic base (10) is provided with a plurality of permanent magnet mounting holes (13); the plurality of permanent magnets (60) are installed one-to-one in the plurality of permanent magnet mounting holes (13), and the permanent magnet (60) is in contact with the top surface of the magnetic suction plate (20) on the side facing the magnetic suction plate (20).

4. The anti-collision structure for the cutting head according to claim 2, characterized in that, One end of the positioning pin (40) is set as a countersunk end and the other end is set as a threaded end; the magnetic base (10) is provided with multiple countersunk holes (12); the magnetic suction plate (20) is provided with multiple threaded holes (22); the countersunk end is located in the countersunk hole (12); the threaded end is fixedly installed in the threaded hole (22).

5. The anti-collision structure for the cutting head according to claim 2, characterized in that, The cutting head mounting component (100) has a light-transmitting hole (11) in its center; the magnetic base (10) has a light-transmitting hole (14) in its center; a hollow conical column (21) is convexly provided on the top surface of the magnetic suction plate (20); the center of the light-transmitting hole (11), the center of the light-transmitting hole (14), and the center of the hollow conical column (21) are positioned correspondingly; the size of the light-transmitting hole (14) is larger than the size of the light-transmitting hole (11); the upper half of the hollow conical column (21) is located inside the light-transmitting hole (11) and fits against each other; the lower half of the hollow conical column (21) is located inside the light-transmitting hole (14) and fits against each other.

6. The anti-collision structure for the cutting head according to claim 5, characterized in that, The anti-collision structure of the cutting head also includes a sealing ring (70); a plurality of the sealing rings (70) are sleeved on the outside of the light-transmitting hole (11) or the light-transmitting hole (14).

7. The anti-collision structure for the cutting head according to claim 2, characterized in that, The top surface of the cutting head mounting component (100) is provided with a first fixing member (51); the bottom surface of the magnetic suction plate (20) is provided with a second fixing member (52); one end of the reset spring (50) is provided with a first mounting hook (53); the other end of the reset spring (50) is provided with a second mounting hook (54); the first mounting hook (53) is connected to the first fixing member (51); the second mounting hook (54) is connected to the second fixing member (52).

8. The anti-collision structure for the cutting head according to claim 2, characterized in that, The cutting head mounting component (100) is provided with a plurality of switch holes (101); one end of a plurality of inductive switches (30) is installed in the switch hole (101) one by one; the other end of the inductive switch (30) is provided with a signal terminal (31); the signal terminal (31) is located outside the top surface of the cutting head mounting component (100).

9. The anti-collision structure for the cutting head according to claim 2, characterized in that, The anti-collision structure of the cutting head also includes a base (200); the top end of the base (200) is connected to the bottom end of the cutting head mounting component (100); the magnetic suction plate (20) is located inside the base (200); the anti-collision structure of the cutting head also includes a first mounting screw (82) and a second mounting screw (91); the magnetic base (10) is installed inside the cutting head mounting component (100) by the first mounting screw (82); the magnetic suction plate (20) is installed inside the base (200) by the second mounting screw (91).

10. A laser cutting machine, characterized in that, The laser cutting machine includes a self-resetting cutting head anti-collision structure as described in any one of claims 1 to 9; the laser cutting machine also includes a cutting head; the cutting head anti-collision structure is mounted on the cutting head via the cutting head mounting component (100).

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