Output head assembly, laser output device and laser processing equipment

Abstract

The utility model discloses an output head assembly, a laser output device and laser processing equipment, and relates to the technical field of laser processing, the output head assembly comprises a connecting pipe and an output head module, the connecting pipe is provided with a light guide channel; the output head module is provided with an insertion hole and a light outlet communicated with the insertion hole, the light outlet end of the connecting pipe is inserted into the insertion hole, and the output head module can move in the length direction of the connecting pipe so as to adjust the insertion distance between the output head module and the connecting pipe. According to the technical scheme, the applicability of the laser output device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, and in particular to an output head assembly, a laser output device, and a laser processing equipment. Background Technology

[0002] Laser processing utilizes the thermal effect generated by a laser beam projected onto a material surface to perform operations such as engraving, cutting, welding, and laser marking. Depending on the specific laser processing operation, the relative height between the laser focus and the processing surface will vary.

[0003] Currently, in laser processing equipment, laser nozzles are usually installed on the laser output device used to emit laser light to guide the laser beam. However, the installation height of the laser nozzle in the laser processing equipment is fixed, and it is impossible to adjust the height position of the light outlet relative to the laser focus by adjusting the height of the laser nozzle. This makes it difficult for the laser processing equipment to be adapted to different working conditions. Utility Model Content

[0004] The main purpose of this invention is to provide an output head assembly, a laser output device, and a laser processing equipment, aiming to improve the applicability of the laser output device.

[0005] To achieve the above objectives, the output head assembly proposed in this utility model includes:

[0006] Connecting tube, the connecting tube being provided with a light guiding channel; and

[0007] The output head module is provided with a plug-in hole and a light-emitting port communicating with the plug-in hole. The light-emitting end of the connecting tube is inserted into the plug-in hole. The output head module can move along the length direction of the connecting tube to adjust the plug-in distance between the output head module and the connecting tube.

[0008] In one embodiment, the output head module includes a fixing ring and a laser nozzle. The fixing ring is provided with the insertion hole, and the laser nozzle is detachably connected to the end of the fixing ring away from the connecting tube. The laser nozzle is provided with the light outlet.

[0009] In one embodiment, the retaining ring includes:

[0010] A fixed body is provided with the insertion hole, and the laser nozzle is detachably connected to the fixed body;

[0011] A hoop, located at the end of the fixing body away from the laser nozzle, and having a connecting hole coaxial with the insertion hole; the hoop has a first locking end and a second locking end spaced apart circumferentially therefrom; and the connecting tube passes through the connecting hole; and

[0012] A locking structure is provided, which is connected to the first locking end and the second locking end, to adjust the distance between the first locking end and the second locking end so that the hoop tightens or loosens the connecting pipe.

[0013] In one embodiment, the locking structure includes:

[0014] A pull rod, which passes through a first locking end and a second locking end, with one end of the pull rod being limitedly connected to the first locking end; and

[0015] The hand-operated handle is provided with a cam structure, which abuts against the surface of the second locking end opposite to the first locking end and is rotatably connected to the pull rod.

[0016] In one embodiment, a buffer pad is sandwiched between the cam structure and the second locking end;

[0017] And / or, the end of the pull rod away from the second locking end is provided with a blocking structure, the blocking structure abutting against the surface of the first locking end.

[0018] In one embodiment, a limiting groove is recessed on the outer wall of the connecting pipe, and the limiting groove extends through both ends along the tangential direction at its location.

[0019] The output head module also includes a limiting pin, which is inserted into the hoop along the tangent direction of the connecting hole. Part of the structure of the limiting pin is exposed in the connecting hole and passes through the limiting groove.

[0020] In one embodiment, the output head module further includes a ceramic ring and a locking ring. The ceramic ring is disposed at one end of the fixed ring, the laser nozzle is connected to the ceramic ring and is located at the end of the ceramic ring opposite to the fixed ring, and the locking ring is threadedly connected to the fixed ring and fixes the ceramic ring to the fixed ring.

[0021] In one embodiment, the outer wall of the connecting tube is provided with a plurality of adjusting teeth arranged along the length direction of the connecting tube, and the output head assembly further includes an adjusting knob, which is rotatably inserted into the output head module. The rotation axis of the adjusting knob is set at an angle to the length direction of the connecting tube, and the adjusting knob is provided with actuating teeth that mesh with the adjusting teeth.

[0022] And / or, the outer wall of the connecting pipe is provided with scale markings.

[0023] In one embodiment, the output head assembly further includes a ranging module, which includes a capacitive sensor and an external connector. The capacitive sensor is disposed in the output head module, one end of the external connector is inserted into the output head module and electrically connected to the capacitive sensor, and the other end of the external connector is located outside the output head module.

[0024] This utility model also proposes a laser output device, which includes a laser component and an output head component as described in any of the foregoing embodiments, wherein the light-incident end of the connecting tube of the output head component is connected to the laser outlet of the laser component.

[0025] In one embodiment, the laser assembly includes a laser host, an optical fiber, and a laser head, with both ends of the optical fiber connected to the laser host and the laser head, respectively, and a connecting tube connected to the laser head.

[0026] This utility model also proposes a laser processing equipment, including a laser output device as described in any of the foregoing embodiments.

[0027] The technical solution of this utility model involves an output head assembly used to guide a laser beam. The connecting tube of the output head assembly connects to the laser component that generates the laser, allowing the laser beam generated by the laser component to enter the output head module through the light guide channel of the connecting tube and then exit. The output head module is adjustable relative to the connecting tube, allowing adjustment of the depth to which the connecting tube is inserted into the output head module, thereby adjusting the distance between the light outlet and the connecting tube. This design allows for adjustment of the relative height between the light outlet and the laser focus when the output head assembly is applied to laser processing equipment, enabling the laser focus to be positioned at different heights relative to the light outlet to suit different processing conditions and improve applicability. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 A structural diagram of an embodiment of the laser processing equipment provided by this utility model;

[0030] Figure 2 A structural diagram of the laser head and output head assembly in one embodiment of the laser processing apparatus provided by this utility model;

[0031] Figure 3 This is a structural diagram of an embodiment of the output head assembly provided by this utility model;

[0032] Figure 4 for Figure 3 Exploded view;

[0033] Figure 5 for Figure 3 A cross-sectional view of the output header component;

[0034] Figure 6 for Figure 3 Another cross-sectional view of the output head component;

[0035] Figure 7 for Figure 3 Another cross-sectional view of the output head component;

[0036] Figure 8 This is a diagram showing the fit between the connecting pipe and the pin.

[0037] Explanation of icon numbers:

[0038] 1000. Laser processing equipment; 100. Laser output device; 10. Output head assembly; 11. Connecting pipe; 111. Light guide channel; 112. Adjusting gear; 113. Limiting groove; 12. Output head module; 121. Fixing ring; 1211. Fixing body; 1211a. Insertion hole; 1211b. First limiting hole; 1211c. Gear hole; 1211d. Second limiting hole; 1212. Hoop; 1212a. Connecting hole; 1212b. First locking end; 1212c. Second locking end;

[0039] 1213. Locking structure; 1213a. Pull rod; 1213b. Hand handle; 1213c. Cam structure; 1214. Buffer pad; 122. Laser nozzle; 1221. Light outlet; 123. Ceramic ring; 124. Locking ring; 125. Adjustment knob; 1251. Rotating handwheel; 1252. Gear shaft; 1252a. Stop; 1253. Connector; 1254. Actuating gear; 126. Distance measuring module; 1261. Capacitive sensor; 1262. External connector; 127. Limit pin;

[0040] 20. Laser components; 21. Laser main unit; 22. Laser head; 23. Optical fiber;

[0041] 200, frame; 300, moving component; 301, first slide rail; 302, second slide rail; 303, lifting mechanism.

[0042] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 scope of protection of the present utility model.

[0044] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0046] Laser processing utilizes the thermal effect generated by a laser beam projected onto a material surface to perform operations such as engraving, cutting, welding, and laser marking. Depending on the specific laser processing operation, the relative height between the laser focus and the processing surface will vary.

[0047] Currently, in laser processing equipment, laser nozzles are usually installed on the laser output device used to emit laser light to guide the laser beam. However, the installation height of the laser nozzle in the laser processing equipment is fixed, and it is impossible to adjust the height position of the light outlet relative to the laser focus by adjusting the height of the laser nozzle. This makes it difficult for the laser processing equipment to be adapted to different working conditions.

[0048] Based on the above problems, this utility model proposes an output head assembly 10.

[0049] Please see Figure 2 and Figure 3In one embodiment of the present invention, the output head assembly 10 includes a connecting tube 11 and an output head module 12. The connecting tube 11 is provided with a light guide channel 111. The output head module 12 is provided with a plug hole 1211a and a light outlet 1221 communicating with the plug hole 1211a. The light outlet end of the connecting tube 11 is inserted into the plug hole 1211a. The output head module 12 can move along the length direction of the connecting tube 11 to adjust the plugging distance between the output head module 12 and the connecting tube 11.

[0050] The output head assembly 10 proposed in this application is used in the laser output device 100 of a laser processing equipment 1000 to guide the laser beam. The laser processing equipment 1000 can be used to perform laser processing operations such as laser cutting, laser welding, laser engraving, and laser marking. In specific applications, the relative height between the laser focus and the processing surface varies depending on the different processing requirements. For example, positive defocus processing requires the laser focus to be above the workpiece surface, negative defocus processing requires the cutting focus to be below the workpiece surface, and zero defocus processing requires the cutting focus to be on the workpiece surface.

[0051] The laser processing equipment 1000 includes a frame 200, a moving component 300, and a laser output device 100. The moving component 300 is mounted on the frame 200 and includes a translation mechanism and a lifting mechanism 303. The translation mechanism can be a dual-axis translation mechanism, including a first slide rail 301 and a second slide rail 302 arranged at an angle in the horizontal direction. The second slide rail 302 is slidably mounted on the first slide rail 301, and the lifting mechanism 303 is slidably mounted on the second slide rail 302.

[0052] The laser output device 100 is provided with a laser component 20 for generating laser light. The laser component 20 can be an integrated laser; the laser component 20 can also be configured to include a laser host 21, an optical fiber 23, and a laser head 22; the laser component 20 can be mounted entirely on the lifting mechanism 303, or only the laser head 22 can be fixed on the lifting mechanism 303. The lifting mechanism 303 drives the laser head 22 of the laser output device 100 to rise and fall, thereby adjusting the height of the laser focus to suit different processing conditions.

[0053] The output head assembly 10 is used to guide the laser beam. The output head assembly 10 includes a connecting tube 11 and an output head module 12. The connecting tube 11 is used to connect to the laser assembly 20, so that the laser beam generated by the laser assembly 20 can be injected into the output head module 12 through the light guide channel 111 of the connecting tube 11 and then emitted outward.

[0054] In this embodiment, the output head module 12 is adjustable relative to the connecting tube 11 to adjust the depth of the connecting tube 11 inserted into the output head module 12, thereby adjusting the distance between the light emission port 1221 and the connecting tube 11. This adjusts the height of the output head module 12 relative to the laser head 22, thus adjusting the relative height between the output head module 12 and the laser focal point. Therefore, in practical applications, the light emission port 1221 of the output head assembly 10 and the processing surface can be kept at a fixed distance, ensuring a fixed emission distance of the laser beam after exiting the light emission port 1221 and guaranteeing processing quality. For example, when positive defocusing is required, the laser head 22 needs to be raised to raise the laser focus. At this time, the position of the output head module 12 in the output head assembly 10 in the connecting tube 11 can be adjusted so that the output head module 12 does not rise with the laser head 22, thereby avoiding the light outlet 1221 being too far from the processing surface. When negative defocusing is required, the laser head 22 needs to be lowered. At this time, the position of the output head module 12 in the output head assembly 10 in the connecting tube 11 can be adjusted to avoid the laser head 22 module colliding with the processing surface.

[0055] The output head module 12 and the connecting pipe 11 can be connected by a thread, and the height of the output head module 12 can be adjusted by rotating the output head module 12; or, in the following embodiment, an adjustable hoop 1212 can be provided on the output head module 12 so that the hoop 1212 is tightened at different height positions on the connecting pipe 11.

[0056] Please see Figures 2 to 4 In one embodiment, the output head module 12 includes a fixing ring 121 and a laser nozzle 122. The fixing ring 121 is provided with a plug hole 1211a. The laser nozzle 122 is detachably connected to the end of the fixing ring 121 away from the connecting tube 11. The laser nozzle 122 is provided with a light outlet 1221.

[0057] In this embodiment, the fixing ring 121 includes a fixing body 1211 and a hoop 1212 connected to each other. The laser nozzle 122 is located at the end of the fixing body 1211 away from the hoop 1212. Both the fixing body 1211 and the hoop 1212 are sleeved on the connecting pipe 11. The hoop 1212 is tightened by the locking structure 1213. When the hoop 1212 is loosened, the output head module 12 can move relative to the connecting pipe 11 to adjust the height of the output head module 12. After adjusting to the required height position, the hoop 1212 is locked by the locking structure 1213 so that the hoop 1212 is tightly clamped on the connecting pipe 11. Optionally, the locking structure 1213 can be a bolt, with the bolt threaded to the locking end away from the bolt head, or a nut can be sleeved on the bolt so that the two locking ends are located between the nut and the bolt head; or, the locking structure 1213 can be a pull rod 1213a and a hand handle 1213b as in the following embodiment, which will not be described in detail here.

[0058] See also Figures 3 to 6 In one embodiment, the fixing ring 121 includes a fixing body 1211, a hoop 1212, and a locking structure 1213. The fixing body 1211 is provided with a plug hole 1211a, and the laser nozzle 122 is detachably connected to the fixing body 1211. The hoop 1212 is located at the end of the fixing body 1211 away from the laser nozzle 122, and is provided with a connecting hole 1212a coaxial with the plug hole 1211a. The hoop 1212 has a first locking end 1212b and a second locking end 1212c spaced apart along its circumference. The connecting tube 11 passes through the connecting hole 1212a. The locking structure 1213 is connected to the first locking end 1212b and the second locking end 1212c to adjust the distance between the first locking end 1212b and the second locking end 1212c so that the hoop 1212 tightens or loosens the connecting tube 11.

[0059] In this embodiment, the fixing ring 121 includes a fixing body 1211 and a hoop 1212. The fixing body 1211 is provided with an insertion hole 1211a, and the hoop 1212 is provided with a connection hole 1212a and has two locking ends arranged circumferentially thereon, namely a first locking end 1212b and a second locking end 1212c. The laser nozzle 122 is located at the end of the fixing body 1211 away from the hoop 1212. The connecting pipe 11 passes through the connection hole 1212a of the hoop 1212 and is inserted into the fixing body 1211. The tightness of the hoop 1212 is adjusted by the locking structure 1213. When the hoop 1212 is loosened, the output head module 12 can move relative to the connecting pipe 11 to adjust the height of the output head module 12. After adjusting to the desired height position, the hoop 1212 is locked by the locking structure 1213 so that the hoop 1212 is tightly clamped onto the connecting pipe 11. Optionally, the locking structure 1213 can be a bolt, with the bolt threaded to the locking end away from the bolt head, or a nut can be fitted onto the bolt so that the two locking ends are located between the nut and the bolt head; or, the locking structure 1213 can be a pull rod 1213a and a hand handle 1213b as described in the following embodiments, which will not be elaborated here.

[0060] Please see Figure 3 and Figure 4 In one embodiment, the locking structure 1213 includes a pull rod 1213a and a hand handle 1213b. The pull rod 1213a passes through the first locking end 1212b and the second locking end 1212c. One end of the pull rod 1213a is limitedly connected to the first locking end 1212b. The hand handle 1213b is provided with a cam structure 1213c. The cam structure 1213c abuts against the surface of the second locking end 1212c away from the first locking end 1212b and is rotatably connected to the pull rod 1213a.

[0061] In this embodiment, the locking structure 1213 is configured as an adjustment structure for the hand handle 1213b and the pull rod 1213a. One end of the pull rod 1213a is limitedly connected to the first locking end 1212b. This can be done by fixing the pull rod 1213a to the first locking end 1212b, or by providing a blocking structure at the end of the pull rod 1213a. The blocking structure can abut against the first locking end 1212b to pull the first locking end 1212b closer to the second locking end 1212c when the pull rod 1213a moves toward the second locking end 1212c. The hand-operated handle 1213b is equipped with a cam structure 1213c. When the hand-operated handle 1213b is rotated, the distance between the rotation axis of the cam structure 1213c and the second locking end 1212c changes as the cam structure 1213c rotates, thereby adjusting the distance between the first locking end 1212b and the second locking end 1212c. This design allows for the application of greater pressure to the second locking end 1212c with a smaller force, thus ensuring that the clamp 1212 is stably clamped onto the connecting pipe 11, and the tightness adjustment of the clamp 1212 is also relatively convenient.

[0062] Please see Figure 3 In one embodiment, a buffer pad 1214 is sandwiched between the cam structure 1213c and the second locking end 1212c; wherein, the buffer pad 1214 can be a brass pad, a copper pad, or the like, which can provide preload and reduce the risk of wear on the cam structure 1213c and the hoop 1212, prevent deformation and aging, and improve service life.

[0063] In one embodiment, the end of the pull rod 1213a away from the second locking end 1212c is provided with a blocking structure, which abuts against the surface of the first locking end 1212b.

[0064] In this embodiment, a blocking structure is provided at one end of the pull rod 1213a. The blocking structure can be a structure similar to a bolt head, or it can be a protruding post perpendicular to the main body of the pull rod 1213a; no limitation is made here. The blocking structure is located on the side of the first locking end 1212b away from the second locking end 1212c. The blocking structure can abut against the first locking end 1212b so that when the pull rod 1213a moves toward the second locking end 1212c, it pulls the first locking end 1212b closer to the second locking end 1212c.

[0065] See also Figure 5 and Figure 8In one embodiment, the outer wall of the connecting pipe 11 is recessed with a limiting groove 113, which extends through both ends along the tangent direction of its location; the output head module 12 also includes a limiting pin 127, which is inserted into the hoop 1212 along the tangent direction of the connecting hole 1212a, and part of the structure of the limiting pin 127 is exposed in the connecting hole 1212a and passes through the limiting groove 113.

[0066] In this embodiment, the use of the limiting pin 127 and the limiting groove 113 can prevent relative rotation between the connecting pipe 11 and the output head module 12, thus maintaining the output head module 12 in a fixed installation position. Alternatively, the limiting groove 113 and the limiting pin 127 can be used to limit the length of the connecting pipe 11, thereby restricting the adjustment distance. Furthermore, in the following embodiment, an adjustment knob 125 is provided to engage with the connecting pipe 11, maintaining the fixed installation position of the output head module 12 and the connecting pipe 11, and ensuring that the actuating teeth 1254 on the adjustment knob 125 always engage with the adjusting teeth 112 of the connecting pipe 11.

[0067] Please see Figures 2 to 6 In one embodiment, the output head module 12 further includes a ceramic ring 123 and a locking ring 124. The ceramic ring 123 is disposed at one end of the fixed ring 121. The laser nozzle 122 is connected to the ceramic ring 123 and is located at the end of the ceramic ring 123 away from the fixed ring 121. The locking ring 124 is threadedly connected to the fixed ring 121 and fixes the ceramic ring 123 to the fixed ring 121.

[0068] In this embodiment, the locking ring 124 includes a perimeter with internal threads and a bottom wall connected to the perimeter. The bottom wall has an installation port for inserting the ceramic ring 123. The locking ring 124 is threadedly connected to the fixing ring 121, and a portion of the ceramic ring 123 is sandwiched between the bottom wall and the fixing ring 121, thereby connecting the ceramic ring 123 to the fixing ring 121. The laser nozzle 122 can be connected to the ceramic ring 123 by means of threaded connection, plug-in connection, etc. The ceramic ring 123 can play a heat insulation role, keeping the capacitive sensor 1261 at a suitable operating temperature, avoiding the high temperature generated during laser processing from affecting the performance of the capacitive sensor 1261, reducing the impact on measurement accuracy, and further ensuring the accuracy and reliability of height measurement.

[0069] Please see Figure 6 and Figure 6 In one embodiment, the outer wall of the connecting tube 11 is provided with a plurality of adjusting teeth 112 arranged along the length direction of the connecting tube 11. The output head assembly 10 also includes an adjusting knob 125, which is rotatably inserted into the output head module 12. The rotation axis of the adjusting knob 125 is perpendicular to the connecting tube 11. The adjusting knob 125 is provided with a toggle tooth 1254 that meshes with the adjusting teeth 112.

[0070] In this embodiment, the outer wall of a portion of the connecting tube 11 inserted into the insertion hole 1211a is provided with several adjusting teeth 112. The output head module 12 is provided with a gear hole 1211c, located on one side of the insertion hole 1211a. The axis of the gear hole 1211c is perpendicular to the axis of the insertion hole 1211a, and the gear hole 1211c communicates with the insertion hole 1211a. The gear shaft 1252 of the adjusting knob 125, equipped with a toggle tooth 1254, is inserted into the gear hole 1211c and meshes with the adjusting teeth 112 of the connecting tube 11. This arrangement allows the output head module 12 to move up and down simply by rotating the adjusting knob 125, improving the convenience of adjusting the height of the output head module 12. Furthermore, the meshing structure of the toggle tooth 1254 and the adjusting teeth 112 allows for more accurate control of the adjustment distance, improving adjustment precision.

[0071] Optionally, the output head module 12 is provided with a first limiting hole 1211b, a gear hole 1211c, and a second limiting hole 1211d connected in sequence. One side of the gear hole 1211c is connected to the insertion hole 1211a. The connection position of the first limiting hole 1211b and the gear hole 1211c forms a first limiting step facing the first limiting hole 1211b. The connection position of the second limiting hole 1211d and the gear hole 1211c forms a second limiting step facing the second limiting hole 1211d. The adjusting knob 125 includes a rotating handwheel 1251 and a gear... The axle 1252 and gear shaft 1252 are provided with actuating teeth 1254, which pass through the gear hole 1211c. The part of the rotating handwheel 1251 is inserted into the first limiting hole 1211b and is arranged opposite to the first limiting step. The end of the gear shaft 1252 away from the first limiting hole 1211b is provided with a stop part 1252a. The stop part 1252a is located in the second limiting hole 1211d and is arranged opposite to the second limiting step. This allows the adjusting knob 125 to maintain a stable connection with the output head module 12 and prevents the adjusting knob 125 from disengaging from the output head module 12. The rotating handwheel 1251 can be threaded, plugged, bonded, or integrally formed with the gear shaft 1252. In some embodiments, a bolt or other connecting part 1253 can also be provided, with the bolt head located on the side of the gear shaft 1252 away from the rotating handwheel 1251, and the bolt shank passing through the gear shaft 1252 and connecting to the rotating handwheel 1251, clamping the gear shaft 1252 between the bolt head and the rotating handwheel 1251. The specific setting of the adjusting knob 125 is not specifically limited here.

[0072] Please see Figure 3 In one embodiment, the outer wall of the connecting tube 11 is provided with scale markings. This arrangement facilitates observation of the connection position of the output head module 12 on the connecting tube 11 and improves the accuracy of adjusting the installation height of the output head module 12.

[0073] In one embodiment, the output head assembly 10 further includes a ranging module 126, which includes a capacitive sensor 1261 and an external connector 1262. The capacitive sensor 1261 is disposed in the output head module 12, one end of the external connector 1262 is inserted into the output head module 12 and electrically connected to the capacitive sensor 1261, and the other end of the external connector 1262 is located outside the output head module 12.

[0074] In this embodiment, the ranging module 126 uses capacitance detection for distance measurement. Specifically, the ranging component includes a capacitance sensor 1261 and an external connector 1262. The external connector 1262 can be used to connect to the control circuit of the laser processing equipment 1000, thereby powering the capacitance sensor 1261 and transmitting a sensing signal. The capacitance sensor 1261 can generate different sensing capacitances and sensing voltages or currents according to the distance between it and the processing area. The distance between the laser nozzle 122 and the processing area can be measured by the measured sensing voltage or current, thereby accurately adjusting the height of the output head assembly 10. This ensures that the distance between the light outlet 1221 of the output head module 12 and the processing area remains stable and reliable over a long period, guaranteeing processing quality and improving processing accuracy and effect. Furthermore, embedding the capacitance sensor 1261 within the output head module 12, for example, by embedding it within the fixing ring 121 of the above embodiment, can reduce the risk of damage to the capacitance sensor 1261.

[0075] Optionally, the laser nozzle 122 can be configured as a conductive structure, so that the capacitive sensor 1261 is electrically connected to the laser nozzle 122. Using the laser nozzle 122 as a probe, it is understood that compared with the built-in capacitive sensor 1261, there are no other devices obstructing the laser nozzle 122 and the processing surface. When measuring distance, the changes in the sensing capacitance or sensing current are more sensitive, which can improve the detection accuracy.

[0076] Please see Figure 1 and Figure 2 This utility model also proposes a laser output device 100, which includes a laser component 20 and an output head component 10. The specific structure of the output head component 10 is as described in the above embodiment. The light-inlet end of the connecting tube 11 of the output head component 10 is connected to the laser outlet of the laser component 20. The laser output device 100 can be used in a laser processing equipment 1000 for outputting lasers for laser cutting, laser welding, laser engraving, and laser marking. The laser component 20 of the laser output device 100 is used to generate lasers. The laser component 20 can be an integrated laser; the laser component 20 can also be configured to include a laser host 21, an optical fiber 23, and a laser head 22.

[0077] Since this laser output device 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0078] Please see Figure 1 In one embodiment, the laser assembly 20 includes a laser host 21, an optical fiber 23, and a laser head 22. The two ends of the optical fiber 23 are connected to the laser host 21 and the laser head 22, respectively, and the connecting tube 11 is connected to the laser head 22.

[0079] In this embodiment, the laser host 21 of the laser assembly 20 is used to generate laser light. The laser light generated by the laser host 21 is transmitted to the laser head 22 through the optical fiber 23, and the laser light is emitted outward from the laser output head for laser processing. When specifically applied to the laser processing equipment 1000, the laser host 21 can be placed outside the frame 200 of the laser processing equipment 1000, and the laser head 22 can be placed inside the frame 200, which helps to reduce the size of the frame 200.

[0080] Please see Figure 1 This utility model also proposes a laser processing equipment 1000, including a frame 200, a moving component 300, and a laser output device 100. The moving component 300 is mounted on the frame 200 and includes a translation mechanism and a lifting mechanism 303. The translation mechanism can be a dual-axis translation mechanism, including a first slide rail 301 and a second slide rail 302 arranged at an angle in the horizontal direction. The second slide rail 302 is slidably mounted on the first slide rail 301. The lifting mechanism 303 is slidably mounted on the second slide rail 302. The laser component 20 of the laser output device 100 can be an integrated laser, with the entire laser component 20 mounted on the lifting mechanism 303. Alternatively, the laser component 20 can be configured to include a laser host 21, an optical fiber 23, and a laser head 22, with the laser head 22 fixed on the lifting mechanism 303. That is, the lifting mechanism 303 can at least drive the laser head 22 and the output head assembly 10 of the laser output device 100 to rise and fall, and the translation mechanism can drive the lifting mechanism 303 to move the laser head 22 and the output head assembly 10 to translate.

[0081] Optionally, in specific applications, depending on different processing requirements, the lifting mechanism 303 drives the laser head 22 and the output head assembly 10 to lift and lower, so as to adjust the relative height between the laser focus and the processing surface. For example, it may be necessary to make the laser focus above the workpiece surface for positive defocusing processing, make the cutting focus below the workpiece surface for negative defocusing processing, and make the cutting focus on the workpiece surface for zero defocusing processing.

[0082] In this embodiment, the relative height between the output head module 12 and the laser focus can also be adjusted by adjusting the height distance between the output head module 12 and the connecting tube 11 and the laser head 22 in the output head assembly 10. This keeps the distance between the light outlet 1221 of the output head assembly 10 and the processing surface fixed, and keeps the emission distance of the laser beam after it is emitted from the light outlet 1221 fixed, thus ensuring the processing quality.

[0083] For example, when positive defocusing is required, the laser head 22 needs to be raised to raise the laser focus. At this time, the position of the output head module 12 in the output head assembly 10 in the connecting tube 11 can be adjusted so that the output head module 12 does not rise with the laser head 22, thereby avoiding the light outlet 1221 being too far from the processing surface. When negative defocusing is required, the laser head 22 needs to be lowered. At this time, the position of the output head module 12 in the output head assembly 10 in the connecting tube 11 can be adjusted to avoid the laser head 22 module colliding with the processing surface.

[0084] Since this laser processing equipment 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0085] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An output head assembly, characterized in that, include: Connecting tube, wherein the connecting tube is provided with a light guiding channel; and The output head module is provided with a plug-in hole and a light-emitting port communicating with the plug-in hole. The light-emitting end of the connecting tube is inserted into the plug-in hole. The output head module can move along the length direction of the connecting tube to adjust the plug-in distance between the output head module and the connecting tube.

2. The output head assembly as claimed in claim 1, characterized in that, The output head module includes a fixing ring and a laser nozzle. The fixing ring is provided with the insertion hole. The laser nozzle is detachably connected to the end of the fixing ring away from the connecting tube. The laser nozzle is provided with the light outlet.

3. The output head assembly as described in claim 2, characterized in that, The fixing ring includes: A fixed body is provided with the insertion hole, and the laser nozzle is detachably connected to the fixed body; A hoop, located at the end of the fixing body away from the laser nozzle, and having a connecting hole coaxial with the insertion hole; the hoop has a first locking end and a second locking end spaced apart circumferentially therefrom; and the connecting tube passes through the connecting hole; and A locking structure is provided, which is connected to the first locking end and the second locking end, to adjust the distance between the first locking end and the second locking end so that the hoop tightens or loosens the connecting pipe.

4. The output head assembly as described in claim 3, characterized in that, The locking structure includes: A pull rod, which passes through a first locking end and a second locking end, with one end of the pull rod being limitedly connected to the first locking end; and The hand-operated handle is provided with a cam structure, which abuts against the surface of the second locking end opposite to the first locking end and is rotatably connected to the pull rod.

5. The output head assembly as described in claim 4, characterized in that, A buffer pad is sandwiched between the cam structure and the second locking end; And / or, the end of the pull rod away from the second locking end is provided with a blocking structure, the blocking structure abutting against the surface of the first locking end.

6. The output head assembly as claimed in claim 3, characterized in that, The outer wall of the connecting pipe is recessed with a limiting groove, and the limiting groove extends through both ends along the tangential direction at its location. The output head module also includes a limiting pin, which is inserted into the hoop along the tangent direction of the connecting hole. Part of the structure of the limiting pin is exposed in the connecting hole and passes through the limiting groove.

7. The output head assembly as claimed in claim 2, characterized in that, The output head module also includes a ceramic ring and a locking ring. The ceramic ring is located at one end of the fixed ring. The laser nozzle is connected to the ceramic ring and is located at the end of the ceramic ring away from the fixed ring. The locking ring is threaded to the fixed ring and fixes the ceramic ring to the fixed ring.

8. The output head assembly as claimed in claim 1, characterized in that, The outer wall of the connecting tube is provided with a plurality of adjusting teeth arranged along the length direction of the connecting tube. The output head assembly also includes an adjusting knob, which is rotatably inserted into the output head module. The rotation axis of the adjusting knob is set at an angle to the length direction of the connecting tube. The adjusting knob is provided with actuating teeth that mesh with the adjusting teeth. And / or, the outer wall of the connecting pipe is provided with scale markings.

9. The output head assembly as described in any one of claims 1 to 8, characterized in that, The output head assembly also includes a ranging module, which includes a capacitive sensor and an external connector. The capacitive sensor is located in the output head module, one end of the external connector is inserted into the output head module and electrically connected to the capacitive sensor, and the other end of the external connector is located outside the output head module.

10. A laser output device, characterized in that, The laser output device includes a laser component and an output head assembly as described in any one of claims 1 to 9, wherein the light-inlet end of the connecting tube of the output head assembly is connected to the laser outlet of the laser component.

11. The laser output device as described in claim 10, characterized in that, The laser assembly includes a laser host, an optical fiber, and a laser head. The two ends of the optical fiber are connected to the laser host and the laser head, respectively, and the connecting tube is connected to the laser head.

12. A laser processing device, characterized in that, Includes the laser output device as described in claim 10 or 11.

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