CN219924912U - Highly self-adaptive laser cutting head and laser cutting equipment - Google Patents

Abstract

The utility model relates to the technical field of laser cutting, in particular to a highly self-adaptive laser cutting head and laser cutting equipment; the laser cutting head comprises a cutting head body and a sensor, wherein the sensor is arranged at the bottom of the cutting head body, a circuit box is arranged on the outer wall of the cutting head body, a wire outlet hole is formed in the cutting head body, a wire passage which is mutually communicated is formed in the sensor and the cutting head body, the sensor is electrically connected with the circuit box, and a connecting wire is distributed through the wire passage and the wire outlet hole. According to the utility model, the connecting lines between the sensor and the circuit box are arranged in the sensor and the cutting head body, so that interference between the connecting lines and irregular workpieces caused by swinging along with the connecting lines in the rotating or swinging working process of the cutting head is avoided, and the laser cutting efficiency and the laser cutting effect are influenced.

Description

Highly self-adaptive laser cutting head and laser cutting equipment

Technical Field

The utility model relates to the technical field of laser cutting, in particular to a highly self-adaptive laser cutting head and laser cutting equipment.

Background

Along with the continuous development of laser technology, the laser cutting technology is increasingly and widely applied to various fields including automobile thermoforming and aerospace, and can realize the procedures of cutting, punching, trimming and the like on plates, pipes, covering parts and three-dimensional parts with complex special-shaped curved surface structures. Based on the characteristics of laser processing, the distance from the laser focus to the surface of the workpiece is required to be kept constant all the time in the high-speed cutting process, so that a sensor structure is required to be arranged on a cutting head to realize the function.

The existing sensor needs to be connected with an external amplifier through a cable, and BNC connectors are arranged on a shell of the sensor and used for cable connection, so that a longer part of the cable of the sensor is located outside a shell of a cutting head, the exposed cable can swing due to movement in the working process of the cutting head, the service life of the cable is influenced, and even the problem that the cable interferes with an irregular workpiece and the cutting efficiency and the cutting effect are influenced.

Disclosure of Invention

In order to solve the problems, in one aspect, the utility model provides a highly adaptive laser cutting head, which comprises a cutting head body and a sensor, wherein the sensor is arranged at the bottom of the cutting head body, a circuit box is arranged on the outer wall of the cutting head body, a wire outlet hole is arranged on the cutting head body, a wire running channel which is mutually communicated is arranged in the sensor and the cutting head body, the sensor is electrically connected with the circuit box, and a connecting wire is arranged through the wire running channel and the wire outlet hole.

Further, a transition circuit structure is arranged in the cutting head body and is positioned in the wiring channel, a connecting wire at one side of the sensor is connected with the transition circuit structure, and a connecting wire at one side of the circuit box is connected with the transition circuit structure.

Further, the transition circuit structure comprises a first circuit board and a first induction board, wherein the first circuit board is connected with the first induction board through a first thimble, the first induction board is connected with a connecting wire at one side of the sensor, and the first circuit board is connected with a connecting wire at one side of the circuit box.

Further, the cutting head body comprises a plurality of detachably connected shells, the routing channels are arranged in the shells, and the transition circuit structure is located between two adjacent shells.

Further, a cable pipeline is arranged between the wire outlet hole and the circuit box, and the connecting wires are further distributed through the cable pipeline.

Further, the wire outlet hole and the circuit box are positioned on the same side wall of the cutting head body.

Further, the sensor comprises a sensor body, an insulating ring and a sensor shell, wherein the insulating ring is connected with the cutting head body, the sensor body is connected with the insulating ring, one end, far away from the insulating ring, of the sensor body is connected with a nozzle, a ceramic body is further arranged between the nozzle and the sensor body, the sensor shell is sleeved outside the sensor body, and the bottom of the sensor shell is connected with the ceramic body.

Further, a second circuit board is arranged on the insulating ring, a second induction plate is arranged on the sensor body, the second induction plate is connected with the second circuit board through a second thimble, a third thimble is arranged on the ceramic body, the third thimble is electrically connected with the second induction plate, and the third thimble is electrically connected with the nozzle.

Further, a fixing ring for insulation is arranged on the outer side of the third thimble.

In another aspect, the present utility model also provides a laser cutting apparatus comprising a highly adaptive laser cutting head as described above.

Compared with the prior art, the utility model has the following beneficial effects due to the adoption of the technical scheme:

1) According to the highly-adaptive laser cutting head provided by the utility model, the circuit box is arranged on the outer wall of the cutting head body, and the connecting line between the sensor and the circuit box is distributed inside the cutting head body through the sensor, so that the phenomenon that the connecting line interferes with an irregular workpiece along with swinging in the rotating or swinging working process of the cutting head, and the laser cutting efficiency and the laser cutting effect are affected is avoided;

2) According to the highly-adaptive laser cutting head provided by the utility model, the transition circuit structure is arranged on the wiring channel, plug-in connection can be realized through the first thimble, the rapid disassembly and maintenance of the shell of the cutting head body can be met, and the connection line between the sensor and the circuit box is not influenced;

3) According to the highly-adaptive laser cutting head provided by the utility model, the cable pipeline is arranged between the wire outlet hole of the cutting head body and the circuit box, so that the connecting wire can be further stored and protected;

4) The highly self-adaptive laser cutting head provided by the utility model has the advantages that the sensor can monitor the distance between the sensor and a workpiece and feed back signals to the system, so that the cutting head is driven to move, the distance between the nozzle and the surface of the workpiece is fixed, the dynamic response and the height following function of the cutting head are realized, and the cutting head cuts a three-dimensional complex irregularly-shaped curved surface;

5) The highly self-adaptive laser cutting head provided by the utility model has the advantages that the sensor, the ceramic body and the nozzle are made into the integral slender conical structure, the variety of the workpiece capable of being cut into complex special-shaped workpieces is wider, the applicability is wider, and the practicability is strong.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a highly adaptive laser cutting head according to the present utility model;

FIG. 2 is a schematic view of a portion of the structure of a highly adaptive laser cutting head according to the present utility model;

FIG. 3 is a schematic diagram of the structure of a sensor in a highly adaptive laser cutting head according to the present utility model;

fig. 4 is a schematic structural diagram of embodiment 2 of the present utility model.

1-a cutting head body; 11-wire outlet holes; 12-wiring channels; 13-a first housing; 14-a second housing; 15-a first circuit board; 16-a first sensing plate; 17-a first thimble; 2-a sensor; 21-a sensor body; 22-insulating rings; 23-a sensor housing; 24-pin shafts; 25-a second circuit board; 26-a second sensing plate; 27-a second thimble; 28-a third thimble; 29-a fixed block; 210-a fixing ring; 3-nozzles; 4-through holes; 5-a circuit box; 51-cable duct; 6-connecting wires; 7-a ceramic body; 8-a rotation mechanism; 9-swinging mechanism.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model. In the drawings, the size and relative sizes of certain parts may be exaggerated for clarity.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected" and "coupled" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be used in any form, such as directly or indirectly through an intermediate medium, or may be used in any form of communication between two elements or in any form of interaction between two elements, and the terms are specifically understood by those of ordinary skill in the art.

In the description of the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "center", "horizontal", "vertical", "top", "bottom", "inner", "outer", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, in the description of the present utility model, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not necessarily for indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

Example 1

As shown in fig. 1-3 of the specification, the utility model provides a highly self-adaptive laser cutting head, which comprises a cutting head body 1 and a sensor 2, wherein the sensor 2 and the cutting head body 1 are provided with mutually communicated through holes 4 for laser to pass through, the sensor 2 is arranged at the bottom of the cutting head body 1, the outer wall of the cutting head body 1 is provided with a circuit box 5, the cutting head body 1 is provided with a wire outlet 11, the sensor 2 and the cutting head body 1 are internally provided with mutually communicated wire channels 12, the sensor 2 is electrically connected with the circuit box 5, a connecting wire 6 is distributed through the wire channels 12 and the wire outlet 11, and the connecting wire 6 is preferably a cable and can be selected according to actual requirements; specifically, the connecting wire 6 of sensor 2 output is connected with circuit box 5 after walking line passageway 12, wire hole 11 in proper order, and sensor 2 walks the line in the casing inside, avoids the connecting wire of sensor 2 to expose, leads to the fact the influence to the laser cutting, also can protect connecting wire 6 to receive the damage simultaneously, prolongs the life of connecting wire 6.

Specifically, the one end that cutting head body 1 kept away from sensor 2 is connected with fiber connector, and the laser that launches is through cutting head body 1, 2 back cutting of sensor treat the machined part in proper order, the bottom of sensor is equipped with nozzle 3, and sensor 2 will detect the capacitance value between nozzle 3 and the machined part treats, can control according to this capacitance value distance between nozzle 3 and the surface of machined part is used for adjusting the height of cutting head, realizes the high following function of cutting head dynamic response, realizes the cutting head and cuts three-dimensional complicated dysmorphism curved surface.

Specifically, an integrated circuit board of a sensor and an amplifier is arranged in the circuit box 5, and a connecting wire of the output end of the sensor is connected with the integrated circuit board in the circuit box.

In an optimized embodiment, a transition circuit structure is arranged in the cutting head body 1, and the transition circuit structure is positioned in the wiring channel 12 and is used for conducting a connecting wire between the sensor 2 and the circuit box 5; the transition circuit structure can adopt a plug-in type connection structure, so that connection wires between the sensor 2 and the circuit box are convenient to conduct.

According to a refinement embodiment, the cutting head body 1 comprises a plurality of detachably connected shells, the cutting head body 1 is assembled by the shells, when the shells between the circuit box and the sensor 2 are disassembled, the connecting wire 6 between the sensor 2 and the circuit box is affected, so that disassembly and overhaul are inconvenient, the connecting wire 6 is arranged into two sections, adjacent ends of the connecting wire 6 are connected through the transition circuit structure, as shown in the attached drawing 2 of the specification, the cutting head body 1 comprises a first shell 13 and a second shell 14, the first shell 13 and the second shell 14 are detachably connected, the first shell 13 and the second shell 14 are positioned on the wiring channel 12, and the transition circuit structure is arranged between the first shell 13 and the second shell 14, so that the connection wire can be conducted and disconnected through the transition circuit structure when the first shell 13 and the second shell 14 are disassembled and overhauled, and the damage to the connection wire cannot be caused. Of course, the cutting head body 1 further includes other housings for connection assembly, and the transition circuit structure may be disposed at other positions of the routing channel 12, and the position of the transition circuit structure is not limited in this embodiment.

In an optimized embodiment, the transition circuit structure comprises a first circuit board 15 and a first induction plate 16, the first circuit board 15 and the first induction plate 16 are connected through a first thimble 17, specifically, one end of the first thimble 17 is connected with the first circuit board 15, the other end of the first thimble 17 is inserted into the first induction plate 16 to realize plug-in connection, the first induction plate 16 is connected with a connecting wire on one side of the sensor 2, the first circuit board 15 is connected with a connecting wire on one side of the circuit box 5, specifically, the first circuit board 15 is arranged on the first casing 13 and can be fixed in a threaded connection and bonding manner, the first induction plate 16 is arranged on the second casing 14 and can be fixed in a threaded connection and bonding manner, when the first casing 13 and the second casing 14 are detached, the first thimble 17 is separated from the first induction plate 16, and the connection between the sensor 2 and the circuit box can be disconnected, and when the first casing 13 and the second casing 14 are assembled, the first thimble 17 is connected with the first induction plate 16, and the electrical connection between the sensor 2 and the circuit box is enabled.

In an optimized embodiment, a cable duct 51 is disposed between the wire outlet hole 11 and the circuit box 5, connectors are disposed on the wire outlet hole 11 and the circuit box, the cable duct 51 is disposed between the two connectors, and the connecting wire is threaded in the cable duct 51, so that on one hand, the cable duct 51 is disposed outside the connecting wire, the connecting wire can be protected, damage to the connecting wire is avoided, the service life of the connecting wire is prolonged, the connecting wire is convenient to store, and the appearance is beautified; on the other hand, the cable duct 51 has a certain strength, and can be attached to the cutting head body 1, so that the swing of the cutting head in the moving process is avoided, and the workpiece to be processed is influenced.

In an optimized embodiment, the wire outlet hole 11 and the circuit box 5 are located on the same side wall of the cutting head body 1, and the wire outlet hole 11 is close to the circuit box, so that the cable duct 51 can be saved.

The sensor 2 comprises a sensor body 21, an insulating ring 22 and a sensor housing 23, wherein the sensor body 21 is installed on the insulating ring 22, one end of the insulating ring 22, which is far away from the sensor body 21, is detachably connected with the cutting head body 1 and is used for assembling the sensor 2 on the cutting head body 1, the cutting head body 1 rotates and swings under the driving of a rotating shaft and a swinging shaft, in the process, the sensor 2, an amplifier circuit are always connected with the nozzle 3, the ceramic body 7 is installed at one end of the sensor body 1, which is far away from the insulating ring 22, can be installed according to actual demands, the nozzle 3 is installed at one end of the ceramic body 7, which is far away from the sensor body 21, can be installed according to the actual demands, the insulating ring 22, the sensor body 21, the ceramic body 7 and the nozzle 3 are provided with mutually communicated through holes 4 for passing through, and the sensor housing 23 is sleeved outside the sensor body 21 and the ceramic body 7 is connected with the bottom of the ceramic body 7.

Specifically, the sensor shell 23 with threaded connection between the sensor body 21, the upper end of ceramic body 7 is provided with the boss, the sensor shell 23 bottom is provided with the accommodation groove with boss looks adaptation, and when screwing sensor shell 23, the accommodation groove can compress tightly the boss, fixes ceramic body 7 on sensor body 21, in order to avoid taking place to rotate between ceramic body 7 and the sensor body 21, ceramic body 7 with be connected through round pin axle 24 between the sensor body 21, fix a position in the annular.

In an optimized embodiment, the sensor body 21 and the insulating ring 22 are fixed in a circumferential direction through a plurality of jackscrews.

In an optimized embodiment, the insulating ring 22 is provided with a second circuit board 25, the second circuit board is fixed on the insulating ring through threaded connection or adhesion, the sensor body 21 is provided with a second sensing board 26, the second sensing board is fixed on the sensor body through threaded connection or adhesion, the second sensing board 26 and the second circuit board 25 are connected through a second thimble 27, the ceramic body 7 is provided with a third thimble 28, the ceramic body is provided with a contact, the third thimble is connected with the contact of the ceramic body, the third thimble 28 is electrically connected with the second sensing board 26, the third thimble 28 is electrically connected with the nozzle 3, and a connecting wire of the output end of the sensor is connected through the second circuit board; the third thimble is preferably a spring thimble.

Specifically, the sensor 2 further includes a fixing block 29, the fixing block 29 is sleeved outside the sensor body 21 and is located below the insulating ring 22, and the second sensing plate 26 is disposed on the fixing block 29; the fixing block 29 and the sensor body 21 are fixed in a circumferential direction through a plurality of jackscrews, and the circumferential position can be adjusted according to actual needs.

In an optimized embodiment, a fixing ring 210 is disposed on the outer side of the third thimble 28, and the fixing ring is made of an insulating material, and the fixing ring 210 plays an insulating role, so that the third thimble 28 is insulated from the sensor body 21.

The sensor is a capacitance sensor and is used for being arranged on a laser cutting head, when the sensor is used, the nozzle is arranged on the ceramic body, the sensor is used for monitoring the gap between the nozzle and a workpiece to be processed, and laser emitted by the laser passes through holes which are communicated with each other on the ceramic body and the sensor body and is emitted from the nozzle for cutting the workpiece to be processed.

Example 2

As shown in an attached drawing 4 of the specification, the utility model also provides another highly self-adaptive laser cutting head, which is a three-dimensional five-axis laser cutting head, and comprises a rotating mechanism 8, a swinging mechanism 9 and a cutting head body 1, wherein the swinging mechanism 9 is connected with the rotating mechanism 8, the cutting head body 1 is connected with the swinging mechanism 9, through holes which are communicated with the cutting head body 1 and used for allowing laser to pass through are formed in the rotating mechanism 8 and the swinging mechanism 9, the cutting head body 1 is driven by the rotating mechanism 8 and the swinging mechanism 9 to rotate and swing so as to drive the cutting head body 1 to move, and a signal is fed back to a control system through the distance between a nozzle 3 monitored by a sensor 2 and a workpiece to be processed, and the system receives the signal and then controls the rotating mechanism 8 and the swinging mechanism 9 to move so that the distance from the nozzle 3 to the surface of the workpiece to be processed is fixed, thereby realizing the dynamic corresponding height following function of the cutting head and realizing the three-dimensional complex shaped curved surface cutting of the cutting head. And when the nozzle at the bottom of the sensor or the side surface of the shell collides with a workpiece to be machined and the like, the system cuts off the light emission of the laser and gives out an alarm, so that the bottom surface and the side surface are crashproof, and the safety of equipment and operators is ensured.

Example 3

The utility model also provides a laser cutting apparatus comprising a highly adaptive laser cutting head as described in embodiment 1.

And all that is not described in detail in this specification is well known to those skilled in the art.

It will be appreciated by those skilled in the art that the utility model can be embodied in many other specific forms without departing from the spirit or scope of the utility model. Although an embodiment of the present utility model has been described, it is to be understood that the utility model is not limited to this embodiment, and that variations and modifications may be effected by one skilled in the art within the spirit and scope of the utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a high self-adaptation's laser cutting head, includes cutting head body and sensor, the sensor sets up the bottom of cutting head body, its characterized in that, install the circuit box on the cutting head body outer wall, be equipped with the wire hole on the cutting head body, the sensor with this internal wiring passageway that communicates that is equipped with each other of cutting head, the sensor with electrical connection between the circuit box, the connecting wire warp walk the wiring passageway with the wire hole is laid.

2. The highly adaptive laser cutting head of claim 1, wherein a transition circuit structure is disposed in the cutting head body, the transition circuit structure is disposed in the routing channel, the connection line on the sensor side is connected to the transition circuit structure, and the connection line on the circuit box side is connected to the transition circuit structure.

3. The highly adaptive laser cutting head of claim 2, wherein the transition circuit structure comprises a first circuit board and a first sensing board, the first circuit board and the first sensing board are connected by a first thimble, the first sensing board is connected with a connecting wire on one side of the sensor, and the first circuit board is connected with a connecting wire on one side of the circuit box.

4. The highly adaptive laser cutting head of claim 2 wherein the cutting head body comprises a plurality of detachably connected housings, the routing channels being disposed within a plurality of the housings, the transition circuit structure being located between two adjacent housings.

5. The highly adaptive laser cutting head of claim 1, wherein a cable duct is disposed between the wire outlet and the circuit box, the connection wires also routed via the cable duct.

6. The highly adaptive laser cutting head of claim 1 wherein the wire exit hole is located on the same side wall of the cutting head body as the circuit box.

7. The highly adaptive laser cutting head of claim 1, wherein the sensor comprises a sensor body, an insulating ring and a sensor housing, the insulating ring is connected with the cutting head body, the sensor body is connected with the insulating ring, one end of the sensor body far away from the insulating ring is connected with a nozzle, a ceramic body is further arranged between the nozzle and the sensor body, the sensor housing is sleeved outside the sensor body, and the bottom is connected with the ceramic body.

8. The highly adaptive laser cutting head according to claim 7, wherein a second circuit board is disposed on the insulating ring, a second sensing board is disposed on the sensor body, the second sensing board is connected with the second circuit board through a second thimble, a third thimble is disposed on the ceramic body, the third thimble is electrically connected with the second sensing board, and the third thimble is electrically connected with the nozzle.

9. The highly adaptive laser cutting head of claim 8, wherein a retaining ring is provided on the outside of the third thimble for insulation.

10. A laser cutting apparatus comprising a highly adaptive laser cutting head according to any one of claims 1 to 9.