Laser processing head with centering function

Abstract

The utility model provides a laser processing head with a centering function, which belongs to the field of laser processing equipment and comprises a laser head mounting frame, a laser head body is mounted on the laser head mounting frame, a workpiece centering clamping mechanism is further mounted on the laser head mounting frame, and the workpiece centering clamping mechanism is provided with a first clamping arm and a second clamping arm. The first clamping arm and the second clamping arm are symmetrically arranged on the two sides of the laser head body. The laser head has the beneficial effects that the workpiece between the clamping arm I and the clamping arm II can be centered and clamped under the action of the workpiece centering and clamping mechanism, so that the laser head body can be always positioned at the central position of the workpiece, and the cutting track of the laser head body is prevented from deviating from a preset path; and therefore, the precision requirement of centering cutting of the workpiece is met.

Description

Technical Field

[0001] This utility model belongs to the field of laser processing equipment, and specifically relates to a laser processing head with a centering function. Background Technology

[0002] In modern industrial processing, H-beams are widely used in many industries such as construction and machinery manufacturing due to their unique structure and excellent mechanical properties. Furthermore, as the manufacturing industry continues to demand higher processing precision and efficiency, the application of laser cutting technology in H-beam processing is becoming increasingly common.

[0003] Currently, the laser processing head in existing H-beam laser cutting equipment mainly consists of an optical system, a mechanical support system, and a cooling system. The optical system is the core component, comprising a laser generator, a reflector, and a focusing lens. The laser generator produces a high-energy laser beam, which is guided by the reflector to accurately propagate to the area to be cut. The focusing lens focuses the laser beam onto the surface of the H-beam profile, increasing energy density and achieving efficient cutting. The mechanical support system provides stable physical support for the entire laser processing head, ensuring the relative positional accuracy of each component during operation and allowing the laser processing head to move flexibly to the designated position under the movement of the cutting equipment. The cooling system uses circulating coolant to remove heat generated by the laser generator and optical components, preventing damage from overheating and ensuring cutting performance.

[0004] However, the laser processing heads of existing H-beam laser cutting equipment have a relatively simple structure. When processing shorter H-beam profiles, or those with regular shapes and minimal dimensional deviations, they can complete the cutting task relatively smoothly thanks to their established optical system and mechanical structure. However, once the processing object changes to longer H-beam profiles, their limitations become apparent. Specifically, due to factors such as gravity and vibration of the conveying equipment during the transport process, long profiles are prone to horizontal positional shifts. Lacking an effective centering structure, existing laser processing heads struggle to track and correct the cutting position in real time. This easily leads to deviations from the preset cutting path, making it difficult to guarantee the dimensional accuracy of the cut profile, significantly reducing cut quality, severely impacting product quality and production efficiency, and even causing material waste. Utility Model Content

[0005] The purpose of this invention is to address the problem that existing laser processing heads, lacking an effective centering structure, struggle to track and correct the cutting position in real time. This invention proposes and designs a laser processing head with a centering function to solve the aforementioned problem, thereby ensuring the processing accuracy of the laser processing head and guaranteeing the precision of the product processing.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a laser processing head with a centering function, comprising a laser head mounting frame, a laser head body mounted on the laser head mounting frame, and a workpiece centering clamping mechanism mounted on the laser head mounting frame. The workpiece centering clamping mechanism is provided with clamping arm one and clamping arm two, which are symmetrically arranged on both sides of the laser head body. Under the action of the workpiece centering clamping mechanism, the workpiece located between clamping arm one and clamping arm two can be centered and clamped, thereby ensuring that the laser head body can always be located at the center position of the workpiece, avoiding the cutting trajectory of the laser head body from deviating from the preset path, and thus meeting the accuracy requirements of centering and cutting the workpiece.

[0007] Furthermore, the workpiece centering and clamping mechanism includes a gear rotatably mounted on the laser head mounting bracket. Two racks, rack one and rack two, mesh simultaneously on the outer side of the gear. Rack one and rack two are arranged parallel to each other and are horizontally slidably mounted on the laser head mounting bracket via linear guide pairs. Rack one is fixedly connected to clamping arm one, and rack two is fixedly connected to clamping arm two, with clamping arms one and two positioned opposite each other on either side of the gear. Rack one or rack two is driven by a linear motion actuator, or clamping arms one or two are driven by a linear motion actuator, or the gear is driven by a rotary motion actuator. In this case, when centering and clamping is required, the linear motion actuator can directly drive rack one or rack two to linear motion, or the rotary motion actuator can drive the gear to rotate. The meshing transmission between the gear and racks one and two controls racks one and rack two to perform opposite and synchronous linear movements. At this time, the clamping arm 1 connected to rack 1 and the clamping arm 2 connected to rack 2 will move closer or further away from each other at the same speed, thereby accurately clamping the workpiece in the center position, ensuring centering accuracy and meeting the requirements of high-precision machining.

[0008] Furthermore, the workpiece centering and clamping mechanism includes a lead screw rotatably mounted on the laser head mounting bracket, with a rotary motion actuator connected to the lead screw. The lead screw has a threaded section one and a threaded section two at its two ends, with opposite rotation directions. Threaded section one is threadedly connected to a nut seat one, which is fixedly connected to a clamping arm one. The nut seat one and / or clamping arm one are horizontally slidably mounted on the laser head mounting bracket via a linear guide pair. Threaded section two is threadedly connected to a nut seat two, which is fixedly connected to a clamping arm two. The nut seat two and / or clamping arm two are horizontally slidably mounted on the laser head mounting bracket via a linear guide pair. When centering and clamping is required, the rotary motion actuator drives the lead screw to rotate, and the nut seats one and two, threadedly engaged on the oppositely rotating threaded sections one and two, drive the clamping arms one and two to move in opposite linear directions along the lead screw axis, thereby achieving simultaneous movement towards the center or to both sides, thus achieving the purpose of centering and clamping.

[0009] Furthermore, the workpiece centering and clamping mechanism includes a rotating shaft rotatably mounted on the laser head mounting bracket. Connecting rod one and connecting rod two are simultaneously hinged to the outer side of the rotating shaft. The hinge points of connecting rod one and connecting rod two are symmetrically arranged on both sides of the rotating shaft. Connecting rod one is hinged to clamping arm one, and connecting rod two is hinged to clamping arm two. Both clamping arms one and two are horizontally slidably mounted on the laser head mounting bracket via linear guide rails, and are positioned opposite each other on both sides of the rotating shaft. Clamping arm one or clamping arm two is driven by a linear motion actuator, or the rotating shaft is driven by a rotary motion actuator. At this time, when centering and clamping actions are required, it can directly drive clamping arm one or clamping arm two to move linearly through linear motion actuators, or drive the rotating shaft to rotate through rotary motion actuators. By utilizing the linkage structure formed between the rotating shaft and connecting rod one, connecting rod two, clamping arm one, and clamping arm two, it controls clamping arm one and clamping arm two to move closer or further away from each other at the same speed, thereby accurately clamping the workpiece in the center position, ensuring centering accuracy, and meeting the requirements of high-precision machining.

[0010] Furthermore, both the lower parts of clamping arm one and clamping arm two are equipped with horizontal rotating wheels, which directly contact the workpiece during actual operation. When clamping arms one and two perform centering and clamping actions on the workpiece, the horizontal rotating wheels, with their flexible rotation characteristics, greatly reduce the friction between the clamping arms and the workpiece. This ensures smooth horizontal movement of the entire laser processing head, effectively preventing scratches on the workpiece surface due to excessive friction, thus ensuring the integrity of the workpiece surface and providing a high-quality foundation for subsequent processing steps.

[0011] Furthermore, a horizontal floating mechanism is installed on one side of the laser head mounting bracket. This allows the laser head body and workpiece alignment and clamping mechanism to function effectively even if the workpiece's transport path deviates to some extent after alignment and clamping. This ensures that the laser head body and workpiece alignment and clamping mechanism mounted on the laser head mounting bracket can float precisely and flexibly in the horizontal direction. This effectively avoids the risk of deformation of the workpiece alignment and clamping mechanism and the workpiece due to excessive external force during the process, greatly ensuring the stability of equipment operation and the accuracy of workpiece processing.

[0012] Further, the horizontal floating mechanism comprises a fixed bottom plate horizontally slidingly installed on one side of the laser head mounting frame through a linear guide pair; both ends of the fixed bottom plate are provided with floating baffles, and the floating baffles at both ends of the fixed bottom plate are oppositely arranged on the left and right sides of the laser mounting frame; a horizontal elastic element is installed on the inner side of the floating baffle, and one end of the horizontal elastic element away from the corresponding floating baffle abuts against the laser head mounting frame. At this time, the fixed bottom plate can be installed on the cross beam of the laser cutting equipment for fixing the Z-axis output end of the laser processing head, and the horizontal floating of the laser mounting frame on the fixed bottom plate is realized through the cooperation of the horizontal elastic element and the floating baffle, that is, the horizontal floating of the laser mounting frame on the cross beam of the laser cutting equipment is realized, thereby ensuring the stability of the equipment operation and the precision of the workpiece processing.

[0013] Further, the laser head mounting frame comprises a centering bottom plate and a laser head fixing plate arranged in parallel, the upper and lower ends of the centering bottom plate and the upper and lower ends of the laser head fixing plate are fixedly connected through a connecting block, the workpiece centering and clamping mechanism is installed on the centering bottom plate, and the laser head body is installed on the laser head fixing plate. At this time, the centering bottom plate and the laser head fixing plate can form a stable frame structure, effectively disperse various stresses generated in the laser cutting process, prevent the laser head mounting frame from deforming due to uneven stress, ensure the relative position accuracy of the laser head body and the workpiece centering and clamping mechanism, and guarantee the stability and accuracy of the cutting and centering operation.

[0014] Further, the workpiece centering and clamping mechanism is located between the centering bottom plate and the laser head fixing plate. Since the workpiece centering and clamping mechanism is arranged between the centering bottom plate and the laser head fixing plate, the space inside the laser head mounting frame is fully utilized, the structure of the entire laser head mounting frame is compact, the floor area of the equipment is reduced, the space utilization rate is improved, and it is especially suitable for limited space working scenes.

[0015] Further, the clamping arm one and the clamping arm two are oppositely arranged on both sides of the laser head fixing plate, and the width of the laser head fixing plate is greater than the width of the laser head body, so as to avoid collision between the clamping arm one, the clamping arm two and the laser head body during the centering process.

[0016] From the above technical scheme can be seen, the utility model has the following advantages: first, the utility model can be under the action of workpiece centering clamping mechanism, the workpiece between clamping arm one and clamping arm two is clamped to center, thereby guaranteeing that laser head body can always be located at the center position of workpiece, avoiding the cutting trajectory of laser head body deviating from the preset path, and further meeting the precision requirement of workpiece centering cutting;Second, the utility model can be under the action of horizontal floating mechanism, when the conveying path of workpiece appears a certain degree of deflection, ensure that the laser head body installed on the laser head mounting frame and the workpiece centering clamping mechanism can accurately and flexibly float in the horizontal direction, thereby effectively avoiding the risk of deformation of the workpiece centering clamping mechanism and workpiece in this process due to bearing excessive external force, greatly guaranteeing the stability of equipment operation and the precision of workpiece processing. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the utility model, the drawings needed to be used in the description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0018] Figure 1 It is the structural schematic diagram of the embodiment of the utility model;

[0019] Figure 2 It is the structural schematic diagram of the workpiece centering clamping mechanism of the embodiment one in the utility model;

[0020] Figure 3 It is the structural schematic diagram of the workpiece centering clamping mechanism of the embodiment two in the utility model;

[0021] Figure 4 It is the structural schematic diagram of the workpiece centering clamping mechanism of the embodiment three in the utility model.

[0022] In the drawing: 1, connecting block;2, laser head fixed plate;3, fixed bottom plate;4, floating baffle;5, horizontal elastic element;6, centering bottom plate;7, workpiece centering clamping mechanism;8, clamping arm one;9, horizontal rotary wheel;10, laser head body;11, rack one;12, gear;13, rack two;14, linear motion execution element;15, clamping arm two;16, connecting rod one;17, rotating shaft;18, connecting rod two;19, lead screw;20, nut seat two. DETAILED DESCRIPTION

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] Example 1

[0025] like Figure 1 As shown, this embodiment provides a first type of laser processing head with centering function, which includes a laser head mounting frame, on which a laser head body 10 for cutting workpieces and a workpiece centering clamping mechanism 7 for centering and clamping workpieces are mounted.

[0026] Specifically, in this first embodiment, the laser head mounting bracket includes a centering base plate 6 and a laser head fixing plate 2 arranged in parallel. One side of the centering base plate 6 is used to mount the Z-axis output end of the Z-axis drive mechanism located at the crossbeam position of the laser cutting equipment, and the other side of the centering base plate 6 is used to mount the workpiece centering clamping mechanism 7. The laser head fixing plate 2 is positioned in front of the workpiece centering clamping mechanism 7, i.e., the workpiece centering clamping mechanism 7 is located between the centering base plate 6 and the laser head fixing plate 2; moreover, both the upper and lower ends of the laser head fixing plate 2 are fixedly connected to the upper and lower ends of the centering base plate 6 via connecting blocks 1, and the laser head body 10 is mounted on the side of the laser head fixing plate 2 away from the centering base plate 6. At this point, the centering base plate 6 and the laser head fixing plate 2 not only form a stable frame structure, effectively dispersing various stresses generated during laser cutting and preventing deformation of the laser head mounting frame due to uneven stress, but also ensure the relative positional accuracy of the laser head body 10 and the workpiece centering clamping mechanism 7, guaranteeing the stability and accuracy of cutting and centering operations; they can also make full use of the internal space of the laser head mounting frame, making the entire laser head mounting frame structure compact, reducing the equipment's footprint, and improving space utilization, making it especially suitable for work scenarios with limited space.

[0027] like Figure 2As shown, the workpiece centering and clamping mechanism 7 comprises a gear 12 rotatably mounted on the laser head mounting frame, the outer side of the gear 12 is engaged with rack one 11 and rack two 13 at the same time, the rack one 11 and the rack two 13 are arranged in parallel and are both horizontally slidably mounted on the laser head mounting frame through a linear guide pair. At the same time, the rack one 11 in the first embodiment is fixedly connected with the clamping arm one 8, and the rack two 13 is fixedly connected with the clamping arm two 15; the clamping arm one 8 and the clamping arm two 15 are oppositely arranged on both sides of the gear 12, and the clamping arm one 8 and the clamping arm two 15 are symmetrically arranged on both sides of the laser head body 10. The rack one 11 or the rack two 13 in the first embodiment is drivingly connected with a linear motion executing element 14 such as an air cylinder or a hydraulic cylinder, or the clamping arm one 8 or the clamping arm two 15 is drivingly connected with a linear motion executing element 14 such as an air cylinder or a hydraulic cylinder, or the gear 12 is drivingly connected with a rotary motion executing element such as a motor or a rotary air cylinder. In this way, when it needs to perform a centering and clamping action, it can directly drive the rack one 11 or the rack two 13 to move linearly through the linear motion executing element 14, or drive the gear 12 to rotate through the rotary motion executing element, and control the rack one 11 and the rack two 13 to move linearly in opposite and synchronous directions through the meshing transmission of the gear 12, the rack one 11 and the rack two 13. At this time, the clamping arm one 8 connected to the rack one 11 and the clamping arm two 15 connected to the rack two 13 will relatively approach or move away at the same speed, so as to accurately clamp the workpiece at the center position, ensure the centering accuracy, and meet the high-precision machining requirement.

[0028] Moreover, as a preferred, the first embodiment can be provided with a horizontal rotary wheel 9 at the lower part of the clamping arm one 8 and the lower part of the clamping arm two 15, and the contact between the corresponding clamping arm and the workpiece is realized through the horizontal rotary wheel 9 in the actual working process. In this way, when the clamping arm one 8 and the clamping arm two 15 perform a centering and clamping action on the workpiece, the horizontal rotary wheel 9 can greatly reduce the friction between the clamping arm and the workpiece by virtue of its flexible rotation, so as to ensure that the workpiece can move smoothly, effectively avoid the situation that the workpiece surface is scratched due to excessive friction, and thus ensure the integrity of the workpiece surface, providing a high-quality basis for subsequent machining procedures. At the same time, in order to avoid the clamping arm one 8 and the clamping arm two 15 from colliding with the laser head body 10, the first embodiment can oppositely arrange the clamping arm one 8 and the clamping arm two 15 on both sides of the laser head fixing plate 2, and make the width of the laser head fixing plate 2 greater than the width of the laser head body 10.

[0029] Based on this, when using the first embodiment to cut a H-shaped steel profile, that is, when using the first embodiment to cut a H-shaped steel profile into two T-shaped profiles, the workpiece centering and clamping mechanism 7 can be controlled to act when the workpiece runs under the laser head body 10, that is, the workpiece centering and clamping mechanism 7 can be controlled to center and clamp the workpiece between the clamping arm one 8 and the clamping arm two 15; then the laser head body 10 is controlled to cut, so as to ensure that the laser head body 10 is always located at the center position of the workpiece, avoid the cutting track of the laser head body 10 deviating from the preset path, and thus meet the precision requirement of the centering cutting of the workpiece.

[0030] In addition, it should be noted that in addition to the cutting operation of the H-shaped steel profile, the first embodiment can also be applied to other laser cutting operations that require centering and clamping of the workpiece.

[0031] Embodiment Two

[0032] The second embodiment provides a second laser processing head with a centering function. Compared with the first embodiment, the difference between the second embodiment and the first embodiment is that the structure of the workpiece centering and clamping mechanism 7 in the second embodiment is different from that in the first embodiment.

[0033] Specifically, in the second embodiment, as shown in Figure 3 the workpiece centering and clamping mechanism 7 includes a lead screw 19 rotatably installed on the laser head mounting rack, and the lead screw 19 is drivingly connected with a motor, a rotary cylinder and other rotary motion execution elements. Moreover, the two ends of the lead screw 19 are respectively provided with a threaded segment one and a threaded segment two, and the threaded segment one and the threaded segment two are opposite in rotation direction; the threaded segment one is threadedly connected with a nut seat one, the nut seat one is fixedly connected with the clamping arm one 8, and the nut seat one and / or the clamping arm one 8 are horizontally slidably installed on the laser head mounting rack through a linear guide pair; the threaded segment two is threadedly connected with a nut seat two 20, the nut seat two 20 is fixedly connected with the clamping arm two 15, and the nut seat two 20 and / or the clamping arm two 15 are horizontally slidably installed on the laser head mounting rack through a linear guide pair.

[0034] At this time, when the centering and clamping action is needed, the lead screw 19 can be driven to rotate by the rotary motion execution elements, and the nut seat one and the nut seat two 20 threadedly matched on the threaded segment one and the threaded segment two opposite in rotation direction can drive the clamping arm one 8 and the clamping arm two 15 to move in opposite linear directions along the axis direction of the lead screw 19, so as to achieve the purpose of moving to the middle or to both sides at the same time, that is, to achieve the purpose of centering and clamping.

[0035] Embodiment Three

[0036] This third embodiment provides a third type of laser processing head with centering function. Compared with the first embodiment, the difference in this third embodiment is that the structure of the workpiece centering clamping mechanism 7 is different from that in the first embodiment.

[0037] Specifically, in this third embodiment, as follows: Figure 4 As shown, the workpiece centering and clamping mechanism 7 includes a rotating shaft 17 rotatably mounted on a laser head mounting frame. A connecting rod 16 and a connecting rod 18 are hinged to the outer side of the rotating shaft 17, with the hinge points of connecting rod 16 and the rotating shaft 17 and connecting rod 18 symmetrically arranged on both sides of the rotating shaft 17. Furthermore, a clamping arm 8 is hinged to connecting rod 16, and a clamping arm 15 is hinged to connecting rod 18. Both clamping arms 8 and 15 are horizontally slidably mounted on the laser head mounting frame via linear guide rails, and are positioned opposite each other on both sides of the rotating shaft 17. Simultaneously, either clamping arm 8 or clamping arm 15 is driven by a linear motion actuator 14 such as a cylinder or hydraulic cylinder, or the rotating shaft 17 is driven by a rotary motion actuator such as a motor.

[0038] At this time, when centering and clamping actions are required, the linear motion actuator 14 can directly drive the clamping arm 18 or the clamping arm 2 15 to move linearly, or the rotary motion actuator can drive the rotating shaft 17 to rotate. By utilizing the linkage structure formed between the rotating shaft 17 and the connecting rod 16, the connecting rod 2 18, the clamping arm 18, and the clamping arm 2 15, the clamping arm 18 and the clamping arm 2 15 can be controlled to move closer or further away from each other at the same speed, thereby accurately clamping the workpiece in the center position, ensuring centering accuracy, and meeting the requirements of high-precision processing.

[0039] Example 4

[0040] This embodiment four provides a fourth type of laser processing head with centering function. Compared with embodiment one, the difference in embodiment four is that the laser head body 10 in embodiment four can float in the direction perpendicular to the length of the workpiece (i.e., the direction perpendicular to the workpiece conveying direction) during the workpiece processing, thereby ensuring the stability of the equipment operation and the accuracy of workpiece processing.

[0041] Specific to the fourth embodiment, it comprises a laser head mounting rack and a horizontal floating mechanism mounted on the laser head mounting rack. Among them, the fixed base plate 3 is used to mount the Z-axis output end of the Z-axis driving mechanism arranged at the cross beam position of the laser cutting equipment on one side of the fixed base plate 3, and the laser head mounting rack is horizontally slidingly mounted on the other side of the fixed base plate 3 through a linear guide rail pair. At the same time, the floating baffle 4 is installed at both ends of the fixed base plate 3, and the floating baffles 4 at both ends of the fixed base plate 3 are arranged on the left and right sides of the laser mounting rack. The inner side of the floating baffle 4 is provided with a horizontal elastic element 5, and one end of the horizontal elastic element 5 away from the floating baffle 4 connected thereto abuts against the laser head mounting rack.

[0042] The laser head mounting rack comprises a centering base plate 6 and a laser head fixing plate 2 arranged in parallel. Among them, the centering base plate 6 is horizontally slidingly connected with the fixed base plate 3 on one side, and the two ends of the centering base plate 6 abut against the corresponding horizontal elastic elements 5; the other side of the centering base plate 6 is provided with a workpiece centering and clamping mechanism 7, and the structure of the workpiece centering and clamping mechanism 7 can adopt any one of the above three kinds of centering and clamping mechanisms 7 and other conventional centering and clamping mechanisms.

[0043] The laser head fixing plate 2 is arranged at the front side of the workpiece centering and clamping mechanism 7, that is, the workpiece centering and clamping mechanism 7 is located between the centering base plate 6 and the laser head fixing plate 2; and the upper and lower ends of the laser head fixing plate 2 are fixedly connected with the upper and lower ends of the centering base plate 6 through the connecting blocks 1, and the laser head body 10 is mounted on the side of the laser head fixing plate 2 away from the centering base plate 6.

[0044] Based on this, when using the fourth embodiment to cut H steel profiles, that is, when using the fourth embodiment to cut one H steel profile into two T-shaped profiles, it can first control the workpiece centering and clamping mechanism 7 to act when the workpiece runs below the laser head body 10, that is, to control the workpiece centering and clamping mechanism 7 to center and clamp the workpiece located between the first clamping arm 8 and the second clamping arm; then control the laser head body 10 to cut, so as to ensure that the laser head body 10 can always be located at the center position of the workpiece, avoid the cutting track of the laser head body 10 deviating from the preset path, and thus meet the precision requirements of the centering cutting of the workpiece. Moreover, in this process, it can realize the horizontal floating of the laser mounting rack on the fixed base plate 3 through the cooperation of the horizontal elastic element 5 and the floating baffle 4, that is, realize the horizontal floating of the laser mounting rack on the cross beam of the laser cutting equipment, so as to ensure the stability of the equipment operation and the accuracy of the workpiece processing.

[0045] In addition, it should be noted that in addition to the cutting operation of H steel profiles, the fourth embodiment can also be applied to other laser cutting operations that require centering and clamping of workpieces.

[0046] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser processing head having a centering function, comprising a laser head mount on which a laser head body (10) is mounted; characterized by, The laser head mounting frame is further provided with a workpiece centering and clamping mechanism (7), which is provided with a clamping arm one (8) and a clamping arm two (15), and the clamping arm one (8) and the clamping arm two (15) are symmetrically arranged on both sides of the laser head body (10).

2. The laser machining head having a centering function according to claim 1, characterized by, The workpiece centering and clamping mechanism (7) comprises a gear (12) rotatably mounted on the laser head mounting frame, the outer side of the gear (12) is simultaneously engaged with a rack one (11) and a rack two (13), the rack one (11) and the rack two (13) are parallelly arranged and are both horizontally slidably mounted on the laser head mounting frame through a linear guide pair; the rack one (11) is fixedly connected with the clamping arm one (8), the rack two (13) is fixedly connected with the clamping arm two (15), and the clamping arm one (8) and the clamping arm two (15) are oppositely arranged on both sides of the gear (12); the rack one (11) or the rack two (13) is drivingly connected with a linear motion execution element (14), or the clamping arm one (8) or the clamping arm two (15) is drivingly connected with the linear motion execution element (14), or the gear (12) is drivingly connected with a rotary motion execution element.

3. The laser machining head having a centering function according to claim 1, characterized by, The workpiece centering and clamping mechanism (7) comprises a lead screw (19) rotatably mounted on the laser head mounting frame, and the lead screw (19) is drivingly connected with a rotary motion execution element; both ends of the lead screw (19) are respectively provided with a threaded section one and a threaded section two, and the threaded section one and the threaded section two are oppositely threaded; the threaded section one is threadedly connected with a nut seat one, the nut seat one is fixedly connected with the clamping arm one (8), and the nut seat one and / or the clamping arm one (8) are horizontally slidably mounted on the laser head mounting frame through a linear guide pair; the threaded section two is threadedly connected with a nut seat two (20), the nut seat two (20) is fixedly connected with the clamping arm two (15), and the nut seat two (20) and / or the clamping arm two (15) are horizontally slidably mounted on the laser head mounting frame through a linear guide pair.

4. The laser machining head having a centering function according to claim 1, characterized by, The workpiece centering and clamping mechanism (7) comprises a rotating shaft (17) rotatably mounted on the laser head mounting frame, the outer side of the rotating shaft (17) is simultaneously hingedly connected with a connecting rod one (16) and a connecting rod two (18), the hinging points of the connecting rod one (16) and the rotating shaft (17) and the hinging points of the connecting rod two (18) and the rotating shaft (17) are symmetrically arranged on both sides of the rotating shaft (17); the connecting rod one (16) is hingedly connected with the clamping arm one (8), and the connecting rod two (18) is hingedly connected with the clamping arm two (15); the clamping arm one (8) and the clamping arm two (15) are both horizontally slidably mounted on the laser head mounting frame through a linear guide pair, and the clamping arm one (8) and the clamping arm two (15) are oppositely arranged on both sides of the rotating shaft (17); the clamping arm one (8) or the clamping arm two (15) is drivingly connected with a linear motion execution element (14), or the rotating shaft (17) is drivingly connected with a rotary motion execution element.

5. The laser machining head having a centering function according to claim 1, characterized by, The lower part of the clamping arm one (8) and the lower part of the clamping arm two (15) are both provided with a horizontal rotary wheel (9).

6. The laser machining head having a centering function according to claim 1, characterized by, One side of the laser head mounting frame is provided with a horizontal floating mechanism.

7. The laser machining head having a centering function according to claim 6, characterized in that, The horizontal floating mechanism comprises a fixed bottom plate (3) horizontally slidingly installed on one side of the laser head mounting frame through a linear guide pair; floating baffle plates (4) are installed at both ends of the fixed bottom plate (3), and the floating baffle plates (4) at both ends of the fixed bottom plate (3) are oppositely arranged on the left and right sides of the laser mounting frame; horizontal elastic elements (5) are installed on the inner sides of the floating baffle plates (4), and one end of each horizontal elastic element (5) away from the corresponding floating baffle plate (4) abuts against the laser head mounting frame.

8. The laser machining head having a centering function according to any one of claims 1 to 7, characterized in that, The laser head mounting frame comprises a centering bottom plate (6) and a laser head fixing plate (2) arranged in parallel, the upper and lower ends of the centering bottom plate (6) and the upper and lower ends of the laser head fixing plate (2) are fixedly connected through a connecting block (1), a workpiece centering and clamping mechanism (7) is installed on the centering bottom plate (6), and a laser head body (10) is installed on the laser head fixing plate (2).

9. The laser machining head having a centering function according to claim 8, characterized in that, The workpiece centering and clamping mechanism (7) is located between the centering bottom plate (6) and the laser head fixing plate (2).

10. The laser machining head having a centering function according to claim 8, characterized by, Clamping arm one (8) and clamping arm two (15) are oppositely arranged on both sides of the laser head fixing plate (2), and the width of the laser head fixing plate (2) is greater than the width of the laser head body (10).

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