CN114686875A

CN114686875A - Broadband high-speed laser cladding system

Info

Publication number: CN114686875A
Application number: CN202011644731.1A
Authority: CN
Inventors: 杨龙刚; 李坦; 郑松刚
Original assignee: Tianjin Zhongke Mast Laser Technology Co ltd
Current assignee: Tianjin Zhongke Mast Laser Technology Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2022-07-01

Abstract

The invention relates to a broadband high-speed laser cladding system which comprises a workbench, a laser working head, a mechanical arm, a powder feeding device, a cooling subsystem, a motion execution subsystem, a high-power laser, a main control subsystem, an environment protection subsystem, a real-time operation monitoring device and a pressure stabilizing device. Through using powerful laser instrument and laser working head and relevant equipment, utilize broadband facula form, the energy is higher, it is faster to melt and cover, can all-round information monitoring and processing of carrying on, a broadband high-speed laser melts and covers system has been formed, high working efficiency, realize intelligent control, the job stabilization is reliable, and outstanding guarantee man-machine safety, the environmental protection performance is high, can video local and remote monitoring, possess complete set of light path, powder, gas, heat control solution, satisfy the many-sided demand of manufacturing.

Description

Broadband high-speed laser cladding system

Technical Field

The invention belongs to the technical field of laser manufacturing, and particularly relates to a broadband high-speed laser cladding system.

Background

Laser cladding, that is, melting a metal material by using a high-energy laser beam and metallurgically bonding the metal material with a base material, is widely used for material surface strengthening, repairing and the like. The laser cladding technology is characterized in that the characteristic of extremely high energy accumulation of a high-power laser beam is utilized, the surface of a workpiece to be processed is instantly subjected to micro-melting, and simultaneously, alloy powder preset on the surface of a part or automatically fed synchronously with the laser beam is completely melted to obtain a compact coating layer metallurgically combined with a matrix. The high-speed laser cladding technology is based on the laser cladding technology, namely, the powder is melted or semi-melted on a molten pool by changing the action process of laser and powder, and simultaneously, a matrix is melted and rapidly solidified with the matrix to form a metallurgically bonded surface coating; the existing laser cladding and laser high-speed cladding also have certain technical shortages, the cost is greatly reduced, the efficiency is improved and promoted, but the existing laser cladding system is not fast enough, the automation and intelligence degrees are not high, the monitored process parameters are less, the comprehensive performance is not high, the light spot area is too small, the requirements of high-speed laser cladding cannot be met, and the requirements of the existing manufacturing industry cannot be met, so that a broadband high-speed laser cladding system is needed to solve the problems existing in the existing laser cladding technology.

Disclosure of Invention

The invention aims to provide a broadband high-speed laser cladding system, which aims to solve the problems that the speed is not fast enough, the intelligent degree is low and the actual requirements of the manufacturing industry cannot be met in the existing laser cladding and laser high-speed cladding processes; the broadband high-speed laser cladding system provided by the system can be applied to the fields of laser cladding, laser material increase, laser 3d printing and the like so as to meet various requirements of the current manufacturing industry.

In order to achieve the above purpose, an embodiment of the present invention provides a broadband high-speed laser cladding system, which includes a workbench, a laser working head, a mechanical arm, a powder feeding device, a cooling subsystem, and a motion execution subsystem, wherein the laser working head is mounted on the mechanical arm to realize movement of the laser working head, a workpiece is placed on the workbench, the powder feeding device provides metal powder for the workpiece, the cooling subsystem performs cooling treatment on the laser working head, and the motion execution subsystem realizes movement of the workpiece; further, the broadband high-speed laser cladding system further comprises a high-power laser, the high-power laser is connected with the laser working head through an optical fiber, the power of the high-power laser is 6000-20000W, and the tolerance power of the laser working head is 20000-30000W.

Further, the light spot form of the laser working head is a line light spot with the length of 5-30 mm and the width of 1-2 mm; the cladding linear speed of the broadband high-speed laser cladding system is 10-200 m/min.

The system further comprises a main control subsystem, wherein the main control subsystem is provided with a control terminal; the main control subsystem is electrically and/or communicatively connected with the high-power laser, the laser working head, the mechanical arm, the motion execution subsystem, the cooling subsystem and the powder feeding device respectively.

Further, the powder feeding device comprises at least a first powder cylinder and a second powder cylinder; the first powder cylinder and the second powder cylinder of the powder feeding device are respectively connected with the laser working head through powder feeding pipelines. .

Furthermore, the cooling subsystem is provided with two cooling pipelines and internally provided with cooling liquid, and the two cooling pipelines are respectively monitored and controlled by adopting a double-temperature double-control mode; the cooling subsystem is also provided with an exhaust fan; one cooling pipeline of the cooling subsystem is connected with the high-power laser, and the other cooling pipeline is connected with the laser working head.

Preferably, the system also comprises a protection workshop, wherein the protection workshop is provided with an alarm device; the control terminal is arranged outside the protection workshop; the main control subsystem, the high-power laser, the laser working head, the mechanical arm, the motion execution subsystem, the cooling subsystem and the powder feeding device are arranged inside the protection workshop.

Optionally, the system further comprises an environment protection subsystem, wherein the environment protection subsystem is electrically and/or communicatively connected with the main control subsystem; the environment protection subsystem comprises at least one of a dust removal device, an oxygen sensor, a helium sensor, an argon sensor and a particle detection sensor.

Optionally, the system further comprises a real-time operation monitoring device, wherein the real-time operation monitoring device comprises at least one of a monitor and a video camera, the monitor is installed outside the protection workshop, and the video camera is electrically and/or communicatively connected with the main control subsystem and the monitor.

Optionally, the powder feeder further comprises a voltage stabilizing device, wherein the voltage stabilizing device is electrically connected with the main control subsystem, the high-power laser, the mechanical arm, the motion execution subsystem, the cooling subsystem, the powder feeding device and the environment protection subsystem respectively and provides stable power supply.

Furthermore, a chuck and a tip device are also arranged on the workbench; the motion execution subsystem is in driving connection with the chuck, and the precision of the whole motion mechanism of the motion execution subsystem is within +/-0.10 mm.

The invention relates to a broadband high-speed laser cladding system, which has the beneficial effects that: the broadband high-speed laser cladding system provided by the invention forms a broadband high-speed laser cladding system by using a high-power laser, a laser working head and related equipment, increases cladding area by using line light spots, has high working efficiency, more intelligent control, stable and reliable work, outstanding guarantee of man-machine safety and high environmental protection performance, can perform video local and remote monitoring, has a complete set of light path, powder, gas and heat control solution, and solves the problems that the existing laser cladding and laser high-speed cladding processes are not fast enough, the efficiency is low, the intelligent degree is low and the actual requirements of the manufacturing industry cannot be met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.

Fig. 1 is a three-dimensional structure diagram of a broadband high-speed laser cladding system (unprotected workshop) according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an electrical connection of a primary control subsystem according to an embodiment of the present invention;

fig. 3 is a front view of a broadband high-speed laser cladding system (without a protection workshop) according to an embodiment of the present invention;

fig. 4 is a top view of a broadband high-speed laser cladding system (without a protection workshop) according to an embodiment of the present invention;

fig. 5 is a front view of a broadband high-speed laser cladding system (with a protection workshop) according to an embodiment of the present invention;

fig. 6 is a front view of a broadband high-speed laser cladding system (without a protection workshop) according to a second embodiment of the present invention;

fig. 7 is a front view of a broadband high-speed laser cladding system (without a protection workshop) according to a third embodiment of the invention;

fig. 8 is a front view of a broadband high-speed laser cladding system (without a protection workshop) according to a fourth embodiment of the present invention.

In the figure:

1. a motion execution subsystem; 2. a work table; 3. a chuck; 4. a centre device; 5. a primary control subsystem; 501. a control terminal; 502. a monitor; 6. a high power laser; 7. a powder feeding device; 701. a first powder cartridge; 702. a second powder cartridge; 8. a laser working head; 9. a mechanical arm; 901. a track; 10. a cooling subsystem; 1001. an exhaust fan; 11. a dust removal device; 12. a voltage stabilizer; 13. a protection workshop; 1301. and an alarm device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. In the embodiments, the positions of the described objects in the drawings, such as "upper", "lower", "left", "right", "front", "back", "inner", "outer", etc., are used merely to indicate relative positional relationships, and when the absolute positions of the described objects are changed in the embodiments, the relative positional relationships may also be changed accordingly.

The broadband high-speed laser cladding system according to the embodiment of the invention is described in detail below with reference to the accompanying drawings.

Example one

Fig. 1 shows a three-dimensional structure diagram of a broadband high-speed laser cladding system (unprotected workshop) according to an embodiment of the present invention; FIG. 2 is a schematic diagram of an electrical connection of a primary control subsystem according to an embodiment of the present invention; fig. 3 is a front view of a broadband high-speed laser cladding system (unprotected workshop) according to an embodiment of the present invention; fig. 4 is a top view of a broadband high-speed laser cladding system (without a protection workshop) according to an embodiment of the present invention; fig. 5 is a front view of a broadband high-speed laser cladding system (with a protection workshop) according to an embodiment of the invention. Fig. 1 to 5 show a broadband high-speed laser cladding system according to a first embodiment of the present invention.

The broadband high-speed laser cladding system provided by the embodiment of the invention comprises a workbench 2, a laser working head 8, a mechanical arm 9, a powder feeding device 7, a cooling subsystem 10 and a motion execution subsystem 1, wherein the laser working head 8 is installed on the mechanical arm 9 to realize the movement of the laser working head 8, the bottom of the mechanical arm 9 is provided with a track 901, at least 3 axial movements of the laser working head 8 can be realized according to the type of the mechanical arm 9, a workpiece is placed on the workbench 2, the powder feeding device 7 provides metal powder for supply, the cooling subsystem 10 performs cooling treatment on the laser working head 8 to provide circulating cooling liquid for the laser working head 8, so that the laser working head 8 is prevented from being damaged due to overhigh temperature, and the motion execution subsystem 1 drives related devices to realize the movement of the workpiece; the broadband high-speed laser cladding system further comprises a high-power laser 6, the high-power laser 6 is connected with the laser working head 8 through optical fibers to achieve laser transmission, laser emitted by the high-power laser 6 is transmitted to the laser working head 8, energy loss is reduced as far as possible, the power of the high-power laser 6 is 6000-20000W, the tolerance power of the laser working head 8 is 20000-30000W, and the laser working head 8 is prevented from being damaged due to overlarge energy.

Alternatively, the high power laser 6 may use one of a semiconductor direct output laser, a semiconductor fiber laser, a gas laser, a solid laser, and a fiber laser.

Specifically, a high-power laser is used as an energy source in the broadband high-speed laser cladding system, sufficient energy distribution is provided for realizing laser broadband high-speed cladding, and the selected power of the laser is 6000-20000W; synchronously, the laser working head 8 also needs to be specially designed and needs to withstand the working condition of 20000-30000W, and the laser working head 8 is used as a core working unit for high-speed laser cladding and directly relates to the quality of high-speed laser cladding. The powder feeding device 7 is used for meeting the requirement of high-speed laser cladding and providing accurate metal powder supply for the laser working head 8, and an internal control unit of the powder feeding device comprises key components such as a powder feeding amount dynamic fitting sensor unit, a powder feeding amount sensor unit and a powder storage amount real-time monitoring sensor unit, so that the monitoring, the measurement and the intelligent control of the metal powder supply are facilitated, and the laser cladding quality is ensured.

In the broadband high-speed laser cladding system provided by the first embodiment of the invention, the light spot form of the laser working head 8 is a linear light spot with the length of 5-30 mm and the width of 1-2 mm; the cladding linear speed of the broadband high-speed laser cladding system is 10-200 m/min. Specifically, the specific size of the line light spot can be realized by selecting and matching laser working heads with different specifications; on the other hand, a laser working head in a variable light spot form can be selected, and the size of the linear light spot is adjusted by switching an optical system in the laser working head, so that various cladding requirements of users are met.

The broadband high-speed laser cladding system provided by the embodiment of the invention also comprises a main control subsystem 5, wherein the main control subsystem 5 is provided with a control terminal 501; the main control subsystem 5 is electrically and/or communicatively connected with the high-power laser 6, the laser working head 8, the mechanical arm 9, the motion execution subsystem 1, the cooling subsystem 10 and the powder feeding device 7 respectively. Optionally, the communication mode between the main control subsystem 5 and the above units may be at least one of PLC communication, RS485 communication, RS232 communication, RS422 communication, and ethernet communication.

Specifically, the main control subsystem 5 is further provided with a control cabinet, a control circuit and accessory components are arranged in the control cabinet, and the functions of setting, selecting, reading, storing and the like of human-computer interaction high-speed laser cladding parameters are realized through the control terminal 501; the monitor 502 can observe the high-speed laser cladding process more clearly, and display the relevant high-speed laser cladding parameter information, which is convenient for the operator to observe. In order to realize the automation and intelligent control of high-speed laser cladding, a main control subsystem 5 is respectively in electric connection and/or communication connection with a high-power laser 6, a laser working head 8, a mechanical arm 9, a motion execution subsystem 1, a cooling subsystem 10 and a powder feeding device 7, state parameters in the subsystems or device components are read, monitored, analyzed, judged, adjusted and the like, all units are integrally controlled through the main control subsystem 5, so that a closed-loop, safe and stable integrated equipment system is formed, and specific electric connection can be shown in a schematic diagram shown in fig. 2.

More specifically, the main control subsystem 5 is used as a control core of the broadband high-speed laser cladding system, performs closed-loop control on the operation of each component subsystem and each unit, and can perform coordination configuration through state information fed back by each component unit, thereby ensuring the complete, safe and reliable operation of the whole broadband high-speed laser cladding system.

For the high-power laser 6, the main control subsystem 5 controls the output power of the high-power laser 6, the laser start and stop, monitors the temperature and water flow information of the high-power laser 6, the temperature of each laser internal module, and gives an alarm, and performs system control including the cooling subsystem 10, the motion execution subsystem 1, the environment protection subsystem and other related actions according to data interaction.

For the laser working head 8, the main control subsystem 5 monitors the temperature of the collimating part, the temperature of the focusing part, the temperature of the nozzle part and the lens cleaning condition of the laser working head 8, and if the temperature is found to exceed the set threshold range, the main control subsystem carries out alarm feedback to stop the machine, stop the machine or prompt information such as maintenance, replacement and the like. Wherein the laser working head 8 comprises an optical laser optical shaping module, a laser molten pool on-line monitoring module, a protective lens cleaning and temperature monitoring module, a working head heat exchange module and the like, which provide guarantee for production work, and each module realizes data cross-linking with the main control subsystem 5, thereby being convenient for data analysis and subsequent processing.

For the powder feeding device 7, the main control subsystem 5 controls the output speed, gas flow, alarm failure, etc. of the powder feeding device 7 and performs related system control according to data interaction.

For the cooling subsystem 10, the main control subsystem 5 controls the cooling subsystem 10 to start and stop, monitor temperature, water flow information, alarm faults and the like, and performs related system control according to data interaction, particularly ensures that the high-power laser 6 performs safety protection in time when the temperature is abnormal.

For the motion execution subsystem 1, the main control subsystem 5 controls the motion execution subsystem 1 to control the laser processing head and the workpiece attached to the robot arm 9 to perform desired motions, perform real-time motion state monitoring, alarm failure, and the like, and perform related system control according to data interaction.

Optionally, the mechanical arm 9 can be a multi-degree-of-freedom robot as required, and can complete more than 3 axial movements, so that the cladding requirement of high-speed laser cladding on the curved surface workpiece is met.

In a broadband high-speed laser cladding system provided by the first embodiment of the present invention, the powder feeding device 7 includes at least one of a first powder cylinder 701 and a second powder cylinder 702; the first powder cylinder 701 and the second powder cylinder 702 of the powder feeding device 7 are respectively connected with the laser working head 8 through powder feeding pipelines; the laser working head 8 is provided with a laser cladding nozzle, and is connected with a powder barrel on the powder feeding device 7 through a powder feeding pipeline, so that metal powder is supplied in the high-speed laser cladding process, and the laser cladding nozzle determines the indexes of the feeding amount, the feeding speed, the feeding precision and the like of each broadband detail position in the high-speed laser cladding process. The arrangement of the first powder cylinder 701 and the second powder cylinder 702 can realize the supply requirement of one main powder feeding and one standby powder feeding, and can also meet the supply and proportioning requirements of alloy powder with two different components.

Of course, more than two powder cylinders can be arranged in the broadband high-speed laser cladding system to meet the requirements of more than two kinds of metal powder supply and proportioning.

In the broadband high-speed laser cladding system provided by the first embodiment of the invention, the cooling subsystem 10 is provided with two cooling pipelines and internally provided with cooling liquid, and the two cooling pipelines are respectively monitored and controlled in a double-temperature and double-control mode; the cooling subsystem 10 is further provided with an exhaust fan 1001 to rapidly cool the cooling liquid and discharge excess heat; specifically, one cooling pipeline of the cooling subsystem 10 is connected with the high-power laser 6, and the other cooling pipeline is connected with the laser working head 8, so that the circulating refrigeration of the cooling liquid is realized. Two kinds of cooling liquid with adjustable temperature are provided according to the difference of the high-power laser 6 and the laser working head 8 so as to meet the requirement of high-speed laser cladding.

The cooling subsystem 10 is equipped with a cooling tank for holding a cooling liquid and a cooling liquid circulation device for circulating and supplying the cooling liquid.

The broadband high-speed laser cladding system provided by the embodiment of the invention further comprises a protection workshop 13, wherein the protection workshop 13 is provided with an alarm device 1301 for alarming in sound, light and other types when the broadband high-speed laser cladding system is abnormal, and the alarm device 1301 is connected with the main control subsystem 5, so that the related abnormal signals of the broadband high-speed laser cladding system can be conveniently received, an alarm instruction is sent to the alarm device 1301, and abnormal alarm is realized; the control terminal 501 and the monitor 502 are arranged outside the protection workshop 13, so that an operator can conveniently perform operation control on the broadband high-speed laser cladding system outside the protection workshop 13, and the operator can be prevented from being influenced from the environmental protection perspective; the inside of protection workshop 13 is arranged in to main control subsystem 5, high-power laser 6, laser working head 8, arm 9, motion execution subsystem 1, cooling subsystem 10, powder feeding device 7, is convenient for protect above-mentioned unit, prevents that the dust from piling up, also makes harmful gas and particulate matter such as waste gas, dust in the high-speed laser cladding process to reduce the influence to external environment.

The broadband high-speed laser cladding system provided by the embodiment of the invention also comprises an environment protection subsystem, wherein the environment protection subsystem is electrically and/or communicatively connected with the main control subsystem 5 to realize the acquisition and processing of various monitoring information; optionally, the environmental protection subsystem includes at least one of a dust removal device 11, an oxygen sensor, a helium sensor, an argon sensor, and a particle detection sensor, and the oxygen sensor, the helium sensor, the argon sensor, and the particle detection sensor may be installed on the protection workshop 13, or may be installed at a corresponding position on the workbench 2.

Specifically, the environmental protection subsystem of the broadband high-speed laser cladding system provided in the first embodiment of the present invention has a dual protection function, and firstly, an atmosphere control system in the cladding process is provided to meet the requirements of argon, helium, and oxygen concentration required in the cladding process; secondly, the personnel safety in the process of operation transfer and shutdown maintenance is ensured, and the personnel health hazard caused by gas reasons is avoided by arranging the multi-position gas detection sensor, the gas collection channel and the laser safety glass. Through the protection workshop 13, a totally-enclosed laser safe operation workshop is provided, and zero negative influences of light, gas and the like on the external environment and people in the operation process are ensured. The main control subsystem 5 enables operators to operate under the condition of reliable environment through information data of all gas sensors, environment monitoring sensors, laser safety light curtains and the like of the environment protection subsystem, guarantees cladding production and physical safety of workers, and realizes data interaction such as real-time data detection and alarm failure to perform related system control.

The broadband high-speed laser cladding system provided by the embodiment of the invention further comprises a real-time operation monitoring device, wherein the real-time operation monitoring device comprises at least one of a monitor 502 and a video camera, the video camera is electrically and/or communicatively connected with the main control subsystem 5 and the monitor 502, the video camera can be installed at a corresponding position on the protection workshop 13, and the monitor 502 is arranged outside the protection workshop 13. The broadband high-speed laser cladding system provided by the invention realizes real-time video acquisition, automatic storage and remote monitoring functions through the real-time operation monitoring device, can perform local display on the monitor 502, can also perform video remote transmission in modes of WIFI, Ethernet TCP/IP and the like, and is convenient for 24-hour safety control of the broadband high-speed laser cladding system. The main control subsystem 5 carries out real-time state monitoring and information data of an internet real-time laser safety light curtain and the like through a network video acquisition device, a monitor 502, a built-in memory and the like of the real-time operation monitoring device, ensures that personnel operate under the condition of reliable environment, and ensures cladding production and physical safety of the personnel.

The broadband high-speed laser cladding system provided by the embodiment of the invention further comprises a voltage stabilizing device 12, wherein the voltage stabilizing device 12 is electrically connected with the main control subsystem 5, the high-power laser 6, the mechanical arm 9, the motion execution subsystem 1, the cooling subsystem 10, the powder feeding device 7 and the environment protection subsystem respectively and provides stable power supply, the voltage stabilizing treatment is carried out on external power supply, and the influence on the broadband high-speed laser cladding system and each working unit caused by power supply fluctuation is reduced.

In the broadband high-speed laser cladding system provided by the embodiment of the invention, the worktable 2 is also provided with the chuck 3 and the tip device 4, so that the broadband high-speed laser cladding system is particularly suitable for realizing cladding of cylindrical workpieces and driving the workpieces to rotate; the motion execution subsystem 1 is in driving connection with the chuck 3, the chuck 3 is driven to rotate according to a set speed, and the precision of the whole motion mechanism of the motion execution subsystem 1 is within +/-0.10 mm, so that the control of a cladding layer is facilitated, and the cladding quality is ensured to meet requirements.

According to the broadband high-speed laser cladding system provided by the embodiment of the invention, by using a high-power laser, a laser working head and related equipment, the cladding area is increased by using a line light spot, the working efficiency is high, the control is more intelligent, the working is stable and reliable, the man-machine safety is remarkably ensured, the environmental protection performance is high, the local and remote monitoring can be performed through video, a complete set of light path, powder, gas and heat control solution is provided, and the problems of low speed, low efficiency, low intelligent degree and incapability of meeting the actual requirements of the manufacturing industry in the existing laser cladding and laser high-speed cladding processes are solved.

Example two

Fig. 6 is a front view of a broadband high-speed laser cladding system (unprotected workshop) according to a second embodiment of the present invention; in the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and only the differences will be described below, but the broadband high-speed laser cladding system provided by the second embodiment of the present invention is appropriately simplified, removes the voltage stabilizing device 12 and the corresponding connection, and is suitable for the case where the front end of the system for supplying power to the broadband high-speed laser cladding system has been subjected to voltage stabilization processing, and the power supply quality is good, compared with the first embodiment.

EXAMPLE III

Fig. 7 is a front view of a broadband high-speed laser cladding system (unprotected workshop) provided by a third embodiment of the invention; in the third embodiment, the same parts as those in the second embodiment are denoted by the same reference numerals, and only the differences will be described below, but the broadband high-speed laser cladding system provided by the third embodiment of the invention is simplified, the environmental protection subsystem is eliminated, and the dust removal device 11 and various corresponding sensor devices, such as an oxygen sensor, a helium sensor, an argon sensor, a particle detection sensor and the like, are deleted synchronously.

Example four

Fig. 8 is a front view of a broadband high-speed laser cladding system (unprotected workshop) according to the fourth embodiment of the invention; in the fourth embodiment, the same parts as those in the third embodiment are denoted by the same reference numerals, and only the differences are described below, but the broadband high-speed laser cladding system provided by the fourth embodiment of the invention is simplified compared with the third embodiment, and a real-time operation monitoring device is removed, so that a video camera is omitted, a monitor 502 is also omitted, and corresponding connections are also omitted synchronously.

Compared with the prior art, the broadband high-speed laser cladding system provided by the invention forms a broadband high-speed laser cladding system by using a high-power laser, a laser working head and related equipment and utilizing a broadband facula form, has high working efficiency, higher cladding speed, more intelligent control and stable and reliable work, the system has the advantages of remarkably ensuring human-computer safety, having high environmental protection performance, being capable of carrying out video local and remote monitoring, having a complete set of light path, powder, gas and heat control solution, solving the problems of insufficient speed, low efficiency, low intelligent degree and incapability of meeting the actual requirements of the manufacturing industry in the existing laser cladding and laser high-speed cladding processes, being applicable to the fields of laser cladding, laser material increase, laser 3d printing and the like, and adapting to various requirements of the current manufacturing industry.

The following points need to be explained:

(1) in the embodiments of the present invention and the drawings, the same reference numerals refer to the same meanings unless otherwise defined.

(2) The drawings of the embodiments of the invention only relate to the structures related to the embodiments of the invention, and other structures can refer to common designs.

(3) In the drawings, which are used to describe embodiments of the invention for purposes of clarity, certain features may be exaggerated or minimized in size, i.e., the drawings are not drawn to scale.

(4) Without conflict, embodiments of the present invention and features of the embodiments may be combined with each other to arrive at new embodiments.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A broadband high-speed laser cladding system comprises a workbench (2), a laser working head (8), a mechanical arm (9), a powder feeding device (7), a cooling subsystem (10) and a motion execution subsystem (1), wherein the laser working head (8) is installed on the mechanical arm (9) to realize the movement of the laser working head (8), a workpiece is placed on the workbench (2), the powder feeding device (7) provides metal powder for supply, the cooling subsystem (10) performs cooling treatment on the laser working head (8), and the motion execution subsystem (1) realizes the motion of the workpiece; the broadband high-speed laser cladding system is characterized by further comprising a high-power laser (6), wherein the high-power laser (6) is connected with the laser working head (8) through an optical fiber, the power of the high-power laser (6) is 6000-20000W, and the tolerance power of the laser working head (8) is 20000-30000W.

2. The broadband high-speed laser cladding system according to claim 1, wherein the light spot form of the laser working head (8) is a line light spot with a length of 5-30 mm and a width of 1-2 mm; the cladding linear speed of the broadband high-speed laser cladding system is 10-200 m/min.

3. The broadband high-speed laser cladding system according to claim 2, further comprising a main control subsystem (5), wherein the main control subsystem (5) is provided with a control terminal (501); the main control subsystem (5), the high-power laser (6), the laser working head (8), the mechanical arm (9), the motion execution subsystem (1), the cooling subsystem (10) and the powder feeding device (7) are electrically connected and/or in communication connection respectively.

4. The broadband high-speed laser cladding system according to claim 3, wherein the powder feeding device (7) comprises at least a first powder cylinder (701) and a second powder cylinder (702); the first powder cylinder (701) and the second powder cylinder (702) of the powder feeding device (7) are respectively connected with the laser working head (8) through powder feeding pipelines.

5. The broadband high-speed laser cladding system according to claim 3, wherein the cooling subsystem (10) is provided with two cooling pipelines and is internally provided with cooling liquid, and the two cooling pipelines are respectively monitored and controlled in a double-temperature double-control mode; the cooling subsystem (10) is also provided with an exhaust fan (1001); one cooling pipeline of the cooling subsystem (10) is connected with the high-power laser (6), and the other cooling pipeline is connected with the laser working head (8).

6. The broadband high-speed laser cladding system according to claim 3, further comprising a protection workshop (13), wherein the protection workshop (13) is provided with an alarm device (1301); the control terminal (501) is arranged outside the protection workshop (13); the high-power laser device comprises a main control subsystem (5), a high-power laser device (6), a laser working head (8), a mechanical arm (9), a motion execution subsystem (1), a cooling subsystem (10) and a powder feeding device (7) which are arranged inside a protection workshop (13).

7. The broadband high-speed laser cladding system according to claim 6, further comprising an environmental protection subsystem, wherein said environmental protection subsystem is electrically and/or communicatively connected to said main control subsystem (5); the environmental protection subsystem comprises at least one of a dust removal device (11), an oxygen sensor, a helium sensor, an argon sensor and a particle detection sensor.

8. The broadband high-speed laser cladding system according to claim 6, further comprising a real-time operation monitoring device, wherein the real-time operation monitoring device comprises at least one of a monitor (502) and a video camera, the monitor (502) is installed outside the protection workshop (13), and the video camera is electrically and/or communicatively connected with the main control subsystem (5) and the monitor (502).

9. The broadband high-speed laser cladding system according to claim 6, further comprising a voltage stabilizer (12), wherein the voltage stabilizer (12) is electrically connected to the main control subsystem (5), the high power laser (6), the robot arm (9), the motion execution subsystem (1), the cooling subsystem (10), the powder feeding device (7), and the environmental protection subsystem respectively and provides a stable power supply.

10. The broadband high-speed laser cladding system according to claim 1, wherein a chuck (3) and a tip device (4) are further arranged on the worktable (2); the motion execution subsystem (1) is in driving connection with the chuck (3), and the precision of the whole motion mechanism of the motion execution subsystem (1) is within +/-0.10 mm.