Mechanical-inductance double-interlocking laser head quick-change safety mechanism

Abstract

The invention discloses a mechanical-inductance double-interlocking laser head quick-change safety mechanism, and relates to the technical field of laser, the mechanical-inductance double-interlocking laser head quick-change safety mechanism comprises a laser output head used for outputting laser, one end of the laser output head is provided with a butt joint seat, the laser output direction is consistent with the axial direction of the butt joint seat, the laser output head is rotatably provided with a locking nut, and the locking nut is connected with the butt joint seat. And the connector is arranged close to one end of the butt-joint seat. Under the rotation action of the torsion spring, the main body light-transmitting hole piece is shielded and protected, through the structural design, the situation that when an operator accidentally forgets to interrupt laser output, the laser is autonomously cut off on the inner side of the butt joint main body can be effectively prevented, autonomous protection on the operator, laser equipment and the surrounding environment is achieved, and the working efficiency is improved. The safety protection performance of the laser equipment during misoperation is improved, and the safety of laser operation is further improved.

Description

Technical Field

[0001] This invention relates to the field of laser technology, specifically to a quick-change safety mechanism for laser heads with mechanical-inductive dual interlocking. Background Technology

[0002] Laser technology is increasingly widely used in industrial processing, medical treatment, scientific research, and other fields. As a core component, the need for rapid replacement of laser output heads is becoming increasingly urgent, and safety protection is a critical aspect of this process. Currently, various quick-change structures for laser heads exist on the market. The authorized publication number "CN206178225U" describes "a quick-change multi-functional plug-in structure." This structure uses magnetic adsorption to achieve rapid installation and removal of optical lenses. While it solves the problem of inconvenient replacement in traditional fixed structures and can adapt to various functional lens switching, it lacks an effective safety interlock design. It relies solely on the principle of magnetic attraction and repulsion for fixation and separation, lacking optical path blocking and misoperation protection mechanisms. This makes it susceptible to laser leakage due to magnetic adsorption failure or mis-plugging, posing a safety threat to personnel, equipment, and the surrounding environment. Furthermore, this structure lacks sealing protection, making the optical path channel susceptible to dust contamination, affecting laser transmission stability. The absence of inductive detection feedback makes it impossible to accurately confirm the docking status, failing to meet the safety and stability requirements of high-precision laser operations.

[0003] Furthermore, most existing quick-change laser head structures suffer from problems such as limited safety features, insufficient sealing performance, and high risk of misoperation. They lack both mechanical and inductive protection mechanisms, making them highly susceptible to safety accidents when plugging or unplugging without interrupting laser output. Therefore, there is an urgent need for a laser head quick-change safety mechanism that combines convenient quick-change, safe interlocking, and sealed protection to address the shortcomings of existing technologies. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides the following technical solution: a mechanical-inductive dual interlocking laser head quick-change safety mechanism, comprising a laser output head for outputting laser light, a docking seat mounted on one end of the laser output head, the docking seat being hollow, the laser output direction being consistent with the axial direction of the docking seat, and a locking nut rotatably mounted on the laser output head, located near the docking seat, the docking seat and the locking nut being threadedly connected; further comprising: A safety component for protecting the laser includes a connector body fixed to the laser output head and mounted near the docking seat. A flap is mounted on the end of the connector body near the docking seat, which opens and blocks the laser path along the central axis of the connector body. A docking guide head is mounted on the end of the connector body away from the laser output head, which limits the flap to the connector body. A locking nut is mounted on the connector body and is fixed in place; the locking nut does not move along the axis of the connector body but can rotate circumferentially around its central axis. The plug-in is used to lock the connector body and the docking seat together to ensure laser transmission. The plug-in includes a tapered groove on the inner side of the docking seat, and a positioning pin and a proximity switch that are centrally symmetrically threaded on the docking seat. The positioning pin and the proximity switch are located on the same axis and both protrude from the inner side of the docking seat. A ring is also fixedly installed on the inner side of the docking seat to limit the movement when the docking guide head is inserted into the inner side of the docking seat.

[0005] Preferably, the end of the docking guide head away from the locking nut is provided with a first conical surface. The positioning groove is formed on the first conical surface of the docking guide head, and the two positioning grooves correspond one-to-one with the proximity switch and the positioning pin, respectively. The docking guide head is inserted into the docking seat through the cooperation of the first conical surface and the conical groove, and the docking guide head is completely fitted into the docking seat through the cooperation of the first conical surface and the conical groove. The parts of the positioning pin and the proximity switch exposed from the inside of the docking seat correspond to the two positioning grooves, respectively. The positioning pin and the proximity switch together cover the docking guide head until the end of the first conical surface is in close contact with the ring retainer; Figure 2 As shown, the docking seat has a notch symmetrically arranged at one end near the docking guide head, and the notch corresponds to the positioning groove.

[0006] Preferably, in the initial state, before the main body of the connector is inserted into the docking seat, the flap, under the cooperation of the flap pivot and the torsion spring, is located inside the flap mounting groove and is perpendicular to the central axis of the main body of the connector. At this time, the top of the flap's actuating force surface protrudes from the flap mounting groove, and the diameter of the circle where the top of the flap's actuating force surface is located is larger than the inner diameter of the docking seat's port. During the insertion of the main body of the connector into the docking seat, under the blocking and pushing of the inner wall of the docking seat, the flap's actuating force surface tilts towards the locking nut inside the flap mounting groove, causing the second sealing surface of the flap to disengage from the second-level sealing step, and the first sealing surface of the flap to disengage from the first-level sealing step, thus fully opening the flap, as shown in the image. Figure 4 As shown, at this time, the torsion spring is compressed, which releases the first sealing surface of the flap from the protection of the light-transmitting hole of the main body. The light-transmitting hole of the main body is aligned with the docking seat, and the light path is unobstructed.

[0007] Preferably, a flapper shaft is threadedly mounted on the main body of the connector. The flapper is rotatably mounted to the main body of the connector via the flapper shaft. The flapper is composed of a flapper actuating force-bearing surface and a flapper second sealing surface. A flapper shaft hole is formed through the center of the flapper actuating force-bearing surface in a direction perpendicular to the central axis of the main body of the connector. The flapper shaft hole is located as follows: Figure 9 The flap shown is opened in the cross-sectional direction of the force-bearing surface; and as shown Figure 5 As shown in Figure 7, the first sealing surface of the flap is fixedly installed in the middle of the side of the flap's second sealing surface that faces away from the docking guide head.

[0008] Preferably, a central groove is provided in the middle of the flip-plate actuating force-bearing surface and along the central axis of the connector body. A torsion spring is installed in the central groove of the flip-plate actuating force-bearing surface. The flip-plate rotating shaft inserts and limits the torsion spring in the central groove of the flip-plate actuating force-bearing surface through the flip-plate rotating shaft hole. After passing through one side of the connector body, the flip-plate rotating shaft passes through the flip-plate actuating force-bearing surface and the torsion spring through the flip-plate rotating shaft hole and is threaded to the other side of the connector body.

[0009] Preferably, the main body of the connector has a light-transmitting hole through its central axis on the inner side, which aligns with the docking seat to ensure unobstructed light path; a flip plate mounting groove is provided on the surface of the connector body near the docking seat, and the flip plate flips within the mounting groove through a flip plate pivot and a torsion spring; a second conical surface is provided on the central surface of the connector body facing the laser output head, and a matching conical surface is provided on the inner side of the locking nut in contact with the connector body, and the connector body is fitted and installed with the locking nut through the cooperation of the second conical surface and the matching conical surface.

[0010] Preferably, a first-level sealing step with a larger aperture than the light-transmitting hole of the main body is provided at one end of the inner side of the main body of the connector and near the docking seat. It is located inside the main body of the connector and, based on the first-level sealing step, that is, with the first-level sealing step as the base, a second-level sealing step with a larger aperture than the first-level sealing step is also provided at one end near the docking seat.

[0011] Preferably, the first sealing surface of the flap plate is used to engage with the first sealing step, and the diameter of the first sealing surface is the same as the diameter of the hole in the cross section of the first sealing step. The second sealing surface of the flap plate is used to engage with the second sealing step, and the groove structure formed by the portion of the cross section of the second sealing step that overlaps with the flap plate mounting groove is used to fit and contact the second sealing surface. In the initial state, under the torsion action of the torsion spring, the first sealing surface of the flap plate on the second sealing surface of the flap plate fits and contacts the first sealing step inside the body of the connector.

[0012] Preferably, the end of the docking guide head away from the laser output head is centrally symmetrically threaded with a set of screws. The docking guide head is bolted to the docking head body by the screws. The end of the docking head body near the docking guide head has a protruding boss. A through groove is opened through the path corresponding to the light transmission hole of the main body at the central axis position of the docking guide head. The docking guide head is fitted and installed with the docking head body by the cooperation of the boss and the through groove.

[0013] Preferably, the surface of the docking guide head is provided with a set of positioning grooves in a centrally symmetrical manner, and the holes through which the screws and docking guide head pass are in the same plane as the positioning grooves. A protruding tongue is fixedly connected to one end of the docking guide head near the main body of the docking head. The protruding tongue is correspondingly provided with the flapper mounting groove. The protruding tongue is used to limit the flapper within the flapper mounting groove, preventing the flapper from rotating 180° around its axis within the flapper mounting groove. With the first sealing step and the first sealing surface of the flapper, and the second sealing step and the second sealing surface of the flapper correspondingly and in close contact, the rotation range of the flapper around its axis within the flapper mounting groove is limited to 0-90°. Figures 5 to 4 The changing states, among which, Figure 5 This refers to the initial state of the flap within the flap mounting slot, in the original state of the torsion spring, i.e., the flap is closed. Figure 4 When the torsion spring is compressed, the flap rotates 90° around the flap axis to the open state, at which time the light path is unobstructed.

[0014] This invention provides a mechanical-inductive dual interlocking laser head quick-change safety mechanism. It has the following beneficial effects: (i) The mechanical-inductive double interlocking laser head quick-change safety mechanism, through the combined use of the triple interlocking locking structure, can effectively ensure the safety and stability of laser output, improve the tightness of the interlocking action between structures, and effectively protect the laser output head inside the interlocking structure, prevent external environment interference to laser output during laser operation, ensure stable laser output, and ensure the continuity of laser operation.

[0015] (ii) The mechanical-inductive dual interlocking laser head quick-change safety mechanism, through the first sealing surface of the flip plate contacting the first sealing step and the second sealing surface of the flip plate contacting the second sealing step, can achieve dual protection and shielding of the main body light-transmitting hole by using the first sealing surface and the second sealing surface of the flip plate, to prevent dust from contaminating the main body light-transmitting hole and the laser output head.

[0016] (III) The mechanical-inductive dual interlocking laser head quick-change safety mechanism, through the setting of the flap and the proximity switch, enables the two to cooperate with each other. Even if the flap gradually opens during the insertion of the laser output head and the docking seat, the light will not be emitted immediately. The locking nut needs to be tightened into place to generate an open signal for the proximity switch to ensure the final output of the laser. This dual light emission guarantee of mechanical and inductive means provides double protection for the safety of laser operation and improves the rigor of laser operation.

[0017] (iv) The mechanical-inductive dual interlocking laser head quick-change safety mechanism can automatically block and protect the main body's light-transmitting hole under the rotation of the torsion spring when separated. This structure design can effectively prevent the laser from being cut off inside the connector body when the operator accidentally forgets to interrupt the laser output, thus achieving autonomous protection for the operator, the laser equipment, and the surrounding environment. It improves the safety performance of the laser equipment in case of misoperation and further enhances the safety of laser operations.

[0018] (v) The mechanical-inductive dual interlocking laser head quick-change safety mechanism, through the corresponding setting of the notch and positioning slot, standardizes the operator's insertion and connection actions of the laser output head and the docking seat. This ensures that the laser will only be output after the corresponding operation steps are followed. While standardizing the operator's work behavior, it avoids the operator's blind insertion and removal between the docking seat and the laser output head, improves the standardization and rigor of laser operation, and avoids some unnecessary laser operation errors and losses. Attached Figure Description

[0019] Figure 1 This is a disassembly diagram of the laser output head and docking seat in this invention; Figure 2 This is a schematic diagram of the assembly of the proximity switch and the locking nut in this invention; Figure 3 This is a schematic diagram of the internal structure of the docking seat in this invention; Figure 4 This is a schematic diagram of the flap opening state in this invention; Figure 5 This is a schematic diagram of the flap being closed in this invention; Figure 6 This is a front view of the flap in the open state on the connector body in this invention; Figure 7 This is a disassembly diagram of the flap and the main body of the connector in this invention; Figure 8 This is a schematic diagram of the overall structure of the flap in this invention; Figure 9 This is a schematic diagram of the structure of the flip-plate's force-bearing surface on the flip plate in this invention; Figure 10 This is an overall schematic diagram of the docking guide head in this invention; Figure 11 for Figure 10 Front view; Figure 12 This is a rear-view structural diagram of the docking guide head in this invention.

[0020] In the diagram: 1. Laser output head; 2. Locking nut; 3. Docking seat; 31. Conical groove; 32. Positioning pin; 33. Ring stop; 34. Proximity switch; 4. Docking connector body; 5. Flip plate; 6. Flip plate shaft; 7. Torsion spring; 8. Docking guide head; 81. Positioning groove; 82. Protruding tongue; 83. Screw; 9. Main body light passage hole; 10. First-level sealing step; 11. Second-level sealing step; 12. Flip plate mounting groove; 13. First sealing surface of flip plate; 14. Second sealing surface of flip plate; 15. Flip plate shaft hole; 16. Flip plate actuating force-bearing surface; 17. Second conical surface. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] For examples, please refer to Figures 1 to 12 This invention provides a technical solution: a mechanical-inductive dual interlocking laser head quick-change safety mechanism, including a laser output head 1 for outputting laser light, a docking seat 3 mounted on one end of the laser output head 1, the docking seat 3 being hollow, the laser output direction being consistent with the axial direction of the docking seat 3, and a locking nut 2 rotatably mounted on the laser output head 1, located near the end of the docking seat 3, the docking seat 3 and the locking nut 2 being threadedly installed; further comprising: A safety component, used to protect the laser, includes a connector body 4, which is fixed to the laser output head 1 and installed at one end near the docking seat 3. A flap 5 is installed at the end of the connector body 4 near the docking seat 3, which is used to open and block the path of the laser at the central axis of the connector body 4. A docking guide head 8 is installed at the end of the connector body 4 away from the laser output head 1, which is used to limit the flap 5 on the connector body 4. A locking nut 2 is installed on the connector body 4 and will not move in the axial direction of the connector body 4, but can rotate circumferentially around the central axis of the connector body 4. The plug-in is used to lock the connector body 4 and the docking seat 3 together to ensure laser transmission. The plug-in includes a tapered groove 31 set inside the docking seat 3, and a positioning pin 32 and a proximity switch 34 that are centrally symmetrically threaded on the docking seat 3. The positioning pin 32 and the proximity switch 34 are located on the same axis and both protrude from the inside of the docking seat 3. A ring stop 33 is also fixedly installed inside the docking seat 3 to limit the movement when the docking guide head 8 is inserted into the inside of the docking seat 3.

[0023] It should be further explained that the proximity switch 34 has a detection range of 1mm. Inside the proximity switch 34 is a high-frequency oscillation coil. When energized, this coil generates a high-frequency alternating electromagnetic field, emitted from the sensing surface of the switch, i.e., the part of the proximity switch 34 exposed inside the docking seat 3. When a metal object enters this electromagnetic field range—that is, when the proximity switch 34 is located at the exposed part inside the docking seat 3 and can contact the positioning groove 81 (i.e., when the distance between the sensing surface of the proximity switch 34 and the innermost inner wall of the positioning groove 81 decreases)—eddy currents will be generated inside the metal object according to the principle of electromagnetic induction. Because the eddy currents "absorb" some of the oscillation energy, the oscillation amplitude of the coil weakens or even stops. Based on this, the detection circuit inside the switch monitors the changes in the oscillation state in real time. When the oscillation changes reach the set threshold range, the circuit will determine that "an object is approaching the predetermined position" and output a switch signal, usually "on" or "off". Specifically, when the sensing surface of the proximity switch senses that the distance between the metal structure and the proximity switch is less than 1mm, the circuit outputs an "on" signal and the laser is output at this time; when the sensing surface of the proximity switch senses that the distance between the metal structure and the proximity switch is greater than or equal to 1mm, the circuit outputs an "off" signal and the laser is not output at this time.

[0024] The end of the docking guide head 8 furthest from the locking nut 2 is provided with a first conical surface. A positioning groove 81 is formed on the first conical surface of the docking guide head 8, and the two positioning grooves 81 correspond one-to-one with the proximity switch 34 and the positioning pin 32, respectively. The docking guide head 8 is inserted into the docking seat 3 through the cooperation of the first conical surface and the conical groove 31, and the docking guide head 8 is completely fitted into the docking seat 3. The parts of the positioning pin 32 and the proximity switch 34 exposed from the inside of the docking seat 3 correspond to the two positioning grooves 81, respectively. The positioning pin 32 and the proximity switch 34 together cover the docking guide head 8 until the end of the first conical surface is in contact with the ring stop 33; Figure 2 As shown, the docking seat 3 has a notch symmetrically arranged at one end near the docking guide head 8, and the notch corresponds to the positioning groove 81.

[0025] By setting the corresponding positions of the notch and the positioning slot 81, the operator's insertion and connection actions between the docking seat 3 and the laser output head 1 are standardized. This ensures that the laser will only output laser light after the corresponding operation steps are followed. This standardizes the operator's work behavior and avoids blind insertion and removal between the docking seat 3 and the laser output head 1, thereby improving the standardization and rigor of laser operations and avoiding unnecessary laser operation errors and losses.

[0026] In the initial state, before the main body 4 of the connector is inserted into the docking seat 3, the flap 5, with the cooperation of the flap shaft 6 and the torsion spring 7, is located inside the flap mounting groove 12 and is perpendicular to the central axis of the main body 4. At this time, the top of the flap actuating force surface 16 protrudes from the flap mounting groove 12, and the diameter of the circle where the top of the flap actuating force surface 16 is located is larger than the inner diameter of the port of the docking seat 3. During the process of the main body 4 being inserted into the docking seat 3, under the blocking and pushing of the inner wall of the docking seat 3, the flap actuating force surface 16 tilts towards the locking nut 2 inside the flap mounting groove 12, causing the second sealing surface 14 of the flap to disengage from the second sealing step 11, and the first sealing surface 13 of the flap to disengage from the first sealing step 10, so that the flap 5 is fully opened, as shown in the figure. Figure 4 As shown, at this time, the torsion spring 7 is compressed, which releases the obstruction protection of the main body light-transmitting hole 9 by the first sealing surface 13 of the flap, and the main body light-transmitting hole 9 is aligned with the docking seat 3, so the light path is unobstructed.

[0027] A flaper shaft 6 is threaded onto the main body 4 of the connector. The flaper 5 is rotatably mounted to the main body 4 of the connector via the flaper shaft 6. The flaper 5 is composed of a flaper actuation force-bearing surface 16 and a flaper second sealing surface 14. A flaper shaft hole 15 is formed through the center of the flaper actuation force-bearing surface 16 in a direction perpendicular to the central axis of the main body 4 of the connector. The flaper shaft hole 15 is located as follows: Figure 9 The flapper is shown to be opened along the cross-sectional direction of the force-bearing surface 16; and as shown Figure 5 As shown in Figure 7, the first sealing surface 13 of the flap is fixedly installed in the middle of the side of the flap second sealing surface 14 that is opposite to the docking guide head 8.

[0028] A central groove is provided in the middle of the flip-plate actuating force-bearing surface 16 and along the central axis of the connector body 4. A torsion spring 7 is installed in the central groove of the flip-plate actuating force-bearing surface 16. The flip-plate rotating shaft 6 inserts and limits the torsion spring 7 in the central groove of the flip-plate actuating force-bearing surface 16 through the flip-plate rotating shaft hole 15. After the flip-plate rotating shaft 6 passes through one side of the connector body 4, it passes through the flip-plate actuating force-bearing surface 16 and the torsion spring 7 through the flip-plate rotating shaft hole 15 and is threaded to the other side of the connector body 4.

[0029] A light-passing hole 9 is provided in the middle of the inner side of the connector body 4 along its central axis, which aligns with the docking seat 3 to ensure unobstructed light path. A flip plate mounting groove 12 is provided on the surface of the connector body 4 near the docking seat 3. The flip plate 5 flips in the flip plate mounting groove 12 through the cooperation of the flip plate pivot 6 and the torsion spring 7. A second conical surface 17 is provided in the middle of the surface of the connector body 4 facing the laser output head 1. A matching conical surface is provided on the inner side of the locking nut 2 at the contact part with the connector body 4. The connector body 4 is fitted and installed with the locking nut 2 through the cooperation of the second conical surface 17 and the matching conical surface.

[0030] With the second conical surface 17, when the locking nut 2 and the mating seat 3 are tightened and installed, the front end of the mating body 4 can not only be completely attached to and inserted into the conical groove 31 through the first conical surface at the end of the positioning groove 81, but also the rear end of the mating body 4 can be limited and locked by the locking nut 2 through the cooperation of the second conical surface 17 and the mating conical surface, thus realizing bidirectional locking and positioning of the mating body 4 in the axial direction; at the same time, the flap 5 installed on the mating body 4 can be flipped normally in the flap mounting groove 12.

[0031] A first-level sealing step 10 with a larger aperture than the light-transmitting hole 9 of the main body 4 is provided on the central axis of the inner side of the connector body 4 and near the docking seat 3. It is located inside the connector body 4 and, based on the first-level sealing step 10, that is, with the first-level sealing step 10 as the base, a second-level sealing step 11 with a larger aperture than the first-level sealing step 10 is also provided at the end near the docking seat 3.

[0032] The first sealing surface 13 of the flap 5 is used to engage with the first sealing step 10. The diameter of the first sealing surface 13 is the same as the diameter of the hole in the cross section of the first sealing step 10. The second sealing surface 14 of the flap 5 is used to engage with the second sealing step 11. The groove structure formed by the part of the cross section of the second sealing step 11 that overlaps with the flap mounting groove 12 is used to fit and contact the second sealing surface 14. In the initial state, under the torsion action of the torsion spring 7, the first sealing surface 13 of the flap 5 on the second sealing surface 14 fits and contacts the first sealing step 10 inside the connector body 4.

[0033] The end of the docking guide head 8 away from the laser output head 1 is centrally symmetrically threaded with a set of screws 83. The docking guide head 8 is bolted to the docking head body 4 by the screws 83. The end of the docking head body 4 near the docking guide head 8 has a protruding boss. A through groove is opened through the path of the central axis of the docking guide head 8 corresponding to the light transmission hole 9 of the main body. The docking guide head 8 is fitted and installed with the docking head body 4 by the cooperation of the boss and the through groove.

[0034] The surface of the docking guide head 8 is centrally symmetrically provided with a set of positioning grooves 81, and the holes through which the screws 83 and the docking guide head 8 pass are in the same plane as the positioning grooves 81. A protruding tongue 82 is fixedly connected to one side of the docking guide head 8 near the docking head body 4. The protruding tongue 82 is correspondingly provided with the flip plate mounting groove 12. The protruding tongue 82 is used to limit the flip plate 5 within the flip plate mounting groove 12, preventing the flip plate 5 from rotating 180° around the flip plate shaft 6 within the flip plate mounting groove 12. With the corresponding contact and cooperation between the first sealing step 10 and the first sealing surface 13 of the flip plate, and the second sealing step 11 and the second sealing surface 14 of the flip plate, the rotation range of the flip plate 5 around the flip plate shaft 6 within the flip plate mounting groove 12 is limited to 0-90°. Figures 5 to 4 The changing states, among which, Figure 5 This refers to the initial state of the flap 5 inside the flap mounting slot 12 with the torsion spring 7 in its original state, i.e., the closed state of the flap 5. Figure 4 When the torsion spring 7 is compressed, the flap 5 rotates 90° around the flap pivot 6 to the open state, at which time the light path is unobstructed.

[0035] In use, align the positioning groove 81 with the notch at the end of the docking seat 3, and slowly insert the docking connector body 4 along with the docking guide head 8 horizontally into the docking seat 3 until the positioning pin 32 is completely in the middle of one of the positioning grooves 81 and abuts against the side of the positioning groove 81 away from the docking seat 3, at which point it can no longer be inserted; at the same time, the proximity switch 34 enters the middle of the other positioning groove 81 and abuts against the side of the positioning groove 81 away from the docking seat 3. Since the docking guide head 8 is made of metal, when the proximity switch 34 enters the innermost side of the positioning groove 81 along the positioning groove 81, that is, when the distance between the sensing surface of the proximity switch 34 and the innermost inner wall of the positioning groove 81 is small. When the distance is 1mm, the proximity switch 34 will determine that "an object is approaching the predetermined position" and output an open signal, indicating that the laser output head 1 and the docking seat 3 have completed docking. During this period, the above process is achieved by continuously tightening the locking nut 2 and the docking seat 3. Only when the threads of the locking nut 2 and the docking seat 3 are tightened in place, the distance between the sensing surface of the proximity switch 34 and the innermost side of the positioning groove 81 is less than 1mm, and the open signal output condition will be met. At this time, the locking nut 2 and the docking seat 3 are in a fully tightened state, that is, the docking seat 3 and the docking head body 4 are rotated and locked, and at this time, the first conical surface at the end of the positioning groove 81 is completely attached and inserted into the conical groove 31. Meanwhile, as the docking guide head 8 follows the docking head body 4 into the docking seat 3, the flipping force-bearing surface 16 of the flipping plate 5 will contact the inner wall of the cylindrical docking seat 3, causing the torsion spring 7 to be compressed. This forces the flipping force-bearing surface 16 to rotate 90° around the flipping axis 6 within the flipping mounting groove 12. The flipping force-bearing surface 16 opens, and the main body light-transmitting hole 9 aligns with the docking seat 3. The light path is now unobstructed and can smoothly enter the docking seat 3, ensuring unobstructed light path.

[0036] During separation, the flap moves the force-bearing surface 16 outward along the inner wall of the docking seat 3. After complete separation, the torsion spring 7 drives the flap 5 to rotate to the initial position. The first sealing surface 13 of the flap contacts the first sealing step 10, and the second sealing surface 14 of the flap contacts the second sealing step 11, isolating the laser output head 1. This completes the docking, interlocking, and disassembly process between the laser output head 1 and the docking seat 3.

[0037] During the interlocking of the laser output head 1 and the docking seat 3, the docking guide head 8 is installed by the continuous threaded twisting of the locking nut 2 and the docking seat 3. The first conical surface at the end of the docking guide head 8 is gradually inserted into the conical groove 31 until it is fully fitted, thus realizing the internal docking lock between the laser output head 1 and the docking seat 3. During this period, the external docking lock between the laser output head 1 and the docking seat 3 is realized by the threaded installation of the locking nut 2 and the docking seat 3. The positioning pin 32 limits the docking guide head 8 inside the positioning groove 81, and the proximity switch 34 provides a switch signal notification to the limiter inside another positioning groove 81, thus realizing the third docking lock between the laser output head 1 and the docking seat 3. Finally, when the distance between the sensing surface of the proximity switch 34 and the innermost side of the positioning groove 81 is less than 1mm, the condition for opening signal output is met, and the flip plate 5 is in the open state. Under these dual conditions, this quick-connect safety mechanism not only realizes multiple locking and anti-disengagement functions, but also plays a multiple docking protection role and a safe light output protection mechanism under the condition of dual state satisfaction. Docking can only be performed when both the flip plate 5 is in the open state and the proximity switch 34 generates an open signal. The normal and safe output of the laser is ensured by the combination of the above-mentioned multiple locking mechanisms and the judgment of the proximity switch 34. If the first condition (flip plate 5 is in the open state) and the second condition (proximity switch 34 generates an open signal) cannot be met at the same time, no light will be emitted. When the locking nut 2 is not tightened enough or is left loose by a few turns, it can prevent laser mistransmission or laser leakage, as well as injury to operators or instruments, thus ensuring the safe use of laser equipment and improving the safety of laser operations.

[0038] The use of the triple interlocking structure described above can effectively ensure the safety and stability of laser output, and effectively protect the laser output head 1 inside the interlocking structure, preventing external environmental interference with laser output during laser operation, ensuring stable laser output, and guaranteeing the continuity of laser operation.

[0039] During separation, the first sealing surface 13 of the flap contacts the first sealing step 10, and the second sealing surface 14 of the flap contacts the second sealing step 11. The first sealing surface 13 and the second sealing surface 14 of the flap can be used to achieve dual protection and shielding of the main body light-transmitting hole 9, preventing dust from contaminating the main body light-transmitting hole 9 and the laser output head 1.

[0040] During use, the flap 5 and proximity switch 34 work together to ensure that even when the flap 5 gradually opens during the insertion of the laser output head 1 and the docking seat 3, light will not be emitted immediately. The locking nut 2 needs to be tightened to the correct position to generate an open signal from the proximity switch 34, ensuring the final laser output. This dual light output guarantee, combining mechanical and inductive methods, provides double protection for laser operation safety and enhances the rigor of laser operations. Furthermore, during separation, the torsion spring 7 automatically blocks and protects the main body's light-transmitting hole 9. This structural design effectively prevents the laser from being accidentally cut off inside the docking body 4 if the operator forgets to interrupt the laser output, thus achieving autonomous protection for the operator, the laser equipment, and the surrounding environment. This improves the safety performance in case of laser equipment misoperation and further enhances the safety of laser operations.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-change safety mechanism for a laser head with mechanical-inductive dual interlocking, characterized in that, Includes a laser output head (1) for outputting laser light, with a docking seat (3) mounted on one end of the laser output head (1). The laser output direction is consistent with the axial direction of the docking seat (3). A locking nut (2) is rotatably mounted on the laser output head (1) and is located near the docking seat (3). The docking seat (3) is threadedly installed with the locking nut (2). Also includes: A safety component for protecting the laser includes a connector body (4), which is fixed to the laser output head (1) and installed at one end near the docking seat (3). A flap (5) is installed at the end of the connector body (4) near the docking seat (3). The flap (5) is used to open and block the path of the laser at the central axis of the connector body (4). A docking guide head (8) is installed at the end of the connector body (4) away from the laser output head (1). The locking nut (2) is limited and installed on the connector body (4) and can rotate around the central axis of the connector body (4). The plug is used to lock the connector body (4) and the docking seat (3) to ensure laser transmission. The plug includes a tapered groove (31) set inside the docking seat (3), and a positioning pin (32) and a proximity switch (34) that are centrally symmetrically threaded on the docking seat (3). The positioning pin (32) and the proximity switch (34) are located on the same axis and both protrude from the inside of the docking seat (3). A ring stop (33) is also fixedly installed inside the docking seat (3) to limit the movement when the docking guide head (8) is inserted into the inside of the docking seat (3).

2. The laser head quick-change safety mechanism with mechanical-inductive dual interlocking as described in claim 1, characterized in that: The main body (4) of the connector has a light-passing hole (9) in the middle of its inner side and along its central axis, which is aligned with the docking seat (3) to ensure that the light path is unobstructed. The main body (4) of the connector has a flip plate mounting groove (12) on its surface and near the docking seat (3). The flip plate (5) flips in the flip plate mounting groove (12) through the cooperation of the flip plate rotating shaft (6) and the torsion spring (7). The main body (4) of the connector has a second conical surface (17) in the middle of its surface and facing the laser output head (1). The locking nut (2) has a matching conical surface in the contact part with the main body (4). The main body (4) of the connector is fitted and installed with the locking nut (2) through the cooperation of the second conical surface (17) and the matching conical surface.

3. The laser head quick-change safety mechanism with mechanical-inductive dual interlocking as described in claim 2, characterized in that: The flap (5) is located inside the flap mounting groove (12) and perpendicular to the central axis of the connector body (4) under the cooperation of the flap pivot (6) and the torsion spring (7). At this time, the top of the flap actuation force surface (16) protrudes from the flap mounting groove (12), and the diameter of the circle at the top of the flap actuation force surface (16) is greater than the inner diameter of the port of the docking seat (3).

4. The laser head quick-change safety mechanism with mechanical-inductive dual interlocking as described in claim 3, characterized in that: The main body (4) of the connector is threaded with a flap rotating shaft (6). The flap (5) is composed of a flap actuating force surface (16) and a flap second sealing surface (14). The flap actuating force surface (16) is provided with a flap rotating shaft hole (15) in the middle of the flap and perpendicular to the central axis of the main body (4). The flap second sealing surface (14) is fixedly installed with a flap first sealing surface (13) in the middle of the side facing away from the docking guide head (8).

5. The laser head quick-change safety mechanism with mechanical-inductive dual interlocking as described in claim 4, characterized in that: A central groove is provided in the middle of the flip-plate actuating force surface (16) and along the central axis of the connector body (4). A torsion spring (7) is installed in the central groove of the flip-plate actuating force surface (16). The flip-plate shaft (6) inserts and limits the torsion spring (7) in the central groove of the flip-plate actuating force surface (16) through the flip-plate shaft hole (15). After the flip-plate shaft (6) passes through one side of the connector body (4), it passes through the flip-plate actuating force surface (16) and the torsion spring (7) through the flip-plate shaft hole (15) and is threaded to the other side of the connector body (4).

6. The laser head quick-change safety mechanism with mechanical-inductive dual interlocking as described in claim 5, characterized in that: A first-level sealing step (10) with a larger aperture than the main body light hole (9) is provided at one end of the inner middle axis of the main body (4) and near the docking seat (3). It is located inside the main body (4). On the basis of the first-level sealing step (10), a second-level sealing step (11) with a larger aperture than the first-level sealing step (10) is also provided at one end near the docking seat (3).

7. The laser head quick-change safety mechanism with mechanical-inductive dual interlocking as described in claim 6, characterized in that: The first sealing surface (13) of the flap (5) is used to engage with the first sealing step (10), and the second sealing surface (14) of the flap (5) is used to engage with the second sealing step (11). The groove structure formed by the part of the cross section of the second sealing step (11) that overlaps with the flap mounting groove (12) is used to engage with the second sealing surface (14). In the initial state, the flap (5) is torn by the torsion of the torsion spring (7) so that the first sealing surface (13) of the flap (14) engages with the first sealing step (10) inside the connector body (4).

8. The laser head quick-change safety mechanism with mechanical-inductive dual interlocking as described in claim 7, characterized in that: The docking guide head (8) has a set of screws (83) threaded in a centrally symmetrical manner at one end away from the laser output head (1). The docking guide head (8) is bolted to the docking head body (4) by the screws (83). The docking head body (4) has a boss protruding at one end near the docking guide head (8). A through groove is opened on the path corresponding to the light-transmitting hole (9) of the main body at the central axis position of the docking guide head (8). The docking guide head (8) is fitted and installed with the docking head body (4) by the boss and the through groove.

9. A quick-change safety mechanism for a laser head with mechanical-inductive dual interlocking as described in claim 8, characterized in that: The surface of the docking guide head (8) is provided with a set of positioning grooves (81) in a centrally symmetrical manner, and the hole through which the screw (83) and the docking guide head (8) pass are in the same plane as the positioning grooves (81). The docking guide head (8) is fixedly connected to a protruding tongue (82) on one side near the docking head body (4). The protruding tongue (82) is correspondingly provided with the flip plate mounting groove (12). The protruding tongue (82) is used to limit the flip plate (5) in the flip plate mounting groove (12).

10. A quick-change safety mechanism for a laser head with mechanical-inductive dual interlocking as described in claim 9, characterized in that: The docking guide head (8) has a first conical surface at the end away from the locking nut (2). The positioning groove (81) is opened on the first conical surface of the docking guide head (8), and the two positioning grooves (81) correspond one-to-one with the proximity switch (34) and the positioning pin (32). The docking guide head (8) is inserted into the docking seat (3) through the cooperation of the first conical surface and the conical groove (31). The positioning pin (32) and the proximity switch (34) are exposed from the inside of the docking seat (3) and correspond to the two positioning grooves (81). The docking seat (3) has a notch in a centrally symmetrical shape at the end near the docking head body (4), and the notch corresponds to the positioning groove (81).

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