A portable laser cleaning device

Abstract

The application provides a portable laser cleaning device, which comprises a handle, a cleaning head and a light source part; a laser, a control card and a wireless communication module are arranged in the light source part; the control card is connected with a control end of the laser through a signal line and establishes communication with a remote terminal through the wireless communication module; the cleaning head comprises a hammer handle and a hammer head; the hammer handle is fixed with the light source part, and an optical isolator and a beam splitter are arranged in the hammer handle; the optical isolator is connected with a light emitting end of the laser through a single-mode optical fiber and is aligned with the beam splitter; the hammer head is fixed with the handle, and a plurality of mirrors, a galvanometer system and a focusing lens are arranged in the hammer head; the galvanometer system comprises an electronic drive amplifier and an X-Y optical scanning head composed of a galvanometer X and a galvanometer Y; based on a remote instruction, the control card is used for starting and stopping control of the laser and parameter modulation or real-time adjustment of the angle of the galvanometer X or the galvanometer Y. The application can solve the problems that the existing laser cleaning device cannot control the galvanometer in real time, the signal has poor anti-interference ability and the device cannot be remotely controlled.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of laser technology, in particular to a portable laser cleaning device. BACKGROUND

[0002] In the power industry, after the metal material (especially the ground wire) rusts, its dielectric properties and conductive properties change, which adversely affects the normal development of electrical tests during maintenance, thereby adversely affecting the state evaluation of power equipment by test personnel.

[0003] At present, the traditional laser cleaning device includes a backpack type low-power laser cleaning equipment and a handheld type medium and low-power laser cleaning equipment. However, the above laser cleaning devices need to be operated under the control of an industrial computer or a computer, and do not have the functions of real-time control of a galvanometer and remote control, and the optical system has large laser energy loss, poor signal anti-interference ability caused by long signal lines, which causes these laser cleaning devices to exist only in the laboratory.

[0004] Therefore, there is an urgent need for a new laser cleaning device to solve the problems of the existing laser cleaning device, such as the inability to real-time control the galvanometer, poor signal anti-interference ability, and the inability to remote control. SUMMARY

[0005] The technical problem to be solved by the embodiments of the present application is to provide a portable laser cleaning device to solve the problems of the existing laser cleaning device, such as the inability to real-time control the galvanometer, poor signal anti-interference ability, and the inability to remote control.

[0006] In order to solve the above technical problems, the embodiments of the present application provide a portable laser cleaning device, which comprises a handle, a cleaning head and a light source part; wherein,

[0007] The light source part is a hollow column, and a laser and a controller composed of a control card and a wireless communication module are arranged in the light source part; wherein, one end of the control card is connected with a remote terminal through the wireless communication module, and the other end is connected with the control end of the laser through a signal line;

[0008] The cleaning head is hollow hammer-shaped, comprising an interconnected hammer handle and hammer head; the hammer handle is provided with a light isolator and a beam splitter, and the outer wall of the side away from the hammer head is fixed with the light source part; the incident end of the light isolator passes through the single-mode optical fiber out of the outer wall of the side away from the hammer head of the hammer handle and enters the light source part to be connected with the light emitting end of the laser, and the emitting end is aligned with the center point of the beam splitter; the beam splitter is arranged at the intersection of the hammer handle and the hammer head; the hammer head is provided with a plurality of mirrors, a galvanometer system and a focusing lens, and the outer wall of the side away from the hammer handle is fixed with the handle; the plurality of mirrors are located between the galvanometer system and the focusing lens, and cooperate with the beam splitter, the galvanometer system and the focusing lens to respectively incident two light beams split by the beam splitter on the galvanometer system and the focusing lens; the galvanometer system and the focusing lens are both arranged perpendicular to the hammer handle and are respectively located on the opposite two end ports of the hammer head; the galvanometer system comprises an electronic drive amplifier and an X-Y optical scanning head composed of a galvanometer X and a galvanometer Y; one end of the electronic drive amplifier passes through another signal line along the hammer handle out of the outer wall of the side away from the hammer head of the hammer handle and enters the light source part to be connected with the control card, and the other end is connected with the driving motor preset on the X-Y optical scanning head;

[0009] Wherein, based on the instruction remotely issued by the remote terminal, the control card controls the start-stop of the laser and the parameter modulation; or, the control card controls the electronic drive amplifier in the galvanometer system to drive the driving motor on the X-Y optical scanning head to move, so as to realize the real-time adjustment of the angle of the galvanometer X or the galvanometer Y.

[0010] Wherein, further comprising: a height-adjustable focal point fixer; wherein,

[0011] The focal point fixer comprises a moving base, a support rod, two guide rails and a fastener; the two guide rails are both long hollow grooves, and are fixed on the upper surface of the moving base in parallel with each other; one end of the support rod is fixed with the end of the handle close to the cleaning head, the other end extends into the gap between the two guide rails, and a plurality of through holes are formed in the middle part between the two ends; the fastener comprises a bolt and a nut;

[0012] Wherein, the bolt passes through the corresponding through hole of the two guide rails and the support rod, and is locked by the nut, so as to fix the support rod and the two guide rails together.

[0013] The light source part is externally provided with a start-stop button.

[0014] The handle is made of aluminum alloy and its length is adjustable.

[0015] The handle is externally provided with an emergency switch.

[0016] The emergency switch comprises a button and a signal transmitter connected to the button.

[0017] The signal transmitter is connected to the control card through a wireless communication module in the controller.

[0018] The galvanometer system further comprises an f-θ scanning lens.

[0019] The light isolator guides the laser beam emitted by the laser to directly enter the focusing lens through a first light path split by the beam splitter.

[0020] The signal lines connected between the single-mode optical fiber and the electronic driving amplifier and the control card are bundled together.

[0021] The laser emits a laser power of 20 W / cm2 and a central wavelength of 1.06-1.07 um.

[0022] The control card is integrated with a DSP chip and an FPGA single-chip microcomputer.

[0023] The embodiment of the present application has the following beneficial effects:

[0024] Compared with the traditional portable laser cleaning device, the application can solve the problems of the existing laser cleaning device, such as the inability to control the galvanometer in real time, poor signal anti-interference ability and the inability to be remotely controlled, by using a control card integrated with DSP and FPGA to automatically remotely control the opening of the laser, parameter setting and movement of the galvanometer system (such as angle adjustment of the galvanometer X or the galvanometer Y). BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, which still belong to the scope of the present application.

[0026] Figure 1 It is an external structure diagram of the portable laser cleaning device provided in the embodiment of the present application.

[0027] Figure 2 It is an internal logic structure connection diagram of the portable laser cleaning device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in combination with the drawings.

[0029] As shown in Figure 1 and Figure 2 , it is a portable laser cleaning device provided in the embodiment of the present application, which comprises a handle 1, a cleaning head 2 and a light source part 3; wherein,

[0030] The light source part 3 is made of aluminum alloy into a hollow column, which is internally provided with a laser G1 and a controller composed of a control card G2 and a wireless communication module G3; wherein, the emission laser power of the laser G1 is 20W / cm2, and the center wavelength of the emission is 1.06-1.07um; the control card G2 is integrated with a DSP chip and an FPGA single-chip microcomputer, one end of which establishes communication with a remote terminal (not shown) through the wireless communication module G3, and the other end is connected with the control end of the laser G1 through a signal line L1; the wireless communication module G3 is a 4G, 5G, Zigbee, Bluetooth or other communication module; it can be understood that the laser G1 can also be manually controlled to start and stop, at this time, the outside of the light source part 3 (i.e. the shell) is provided with a start-stop button 31; wherein, the start-stop button 31 is connected with the laser G1, and is used to start the laser G1 when being pressed from a first initial position to a first predetermined position; or, the start-stop button 31 is used to turn off the laser G1 when being pressed from the first predetermined position to the first initial position;

[0031] The cleaning head 2 is made of aluminum alloy into a hollow hammer shape, including an interconnected hammer handle 21 and a hammer head 22; the hammer handle 21 is provided with an optical isolator Q1 and a beam splitter Q2, and the outer wall away from the hammer head 21 is fixed with the light source part 3; the incident end of the optical isolator Q1 passes through the single-mode optical fiber Q3 out of the outer wall of the side of the hammer handle 21 away from the hammer head 22 and enters the light source part 3 (for example, the opposite two side walls of the hammer handle 21 and the light source part 3 are provided with through holes to allow the single-mode optical fiber Q3 to enter and exit) and is connected with the light emitting end of the laser G1, and the emitting end is aligned with the center point of the beam splitter Q2; the beam splitter Q2 is arranged at the intersection of the hammer handle 21 and the hammer head 22, used to guide the laser beam emitted by the laser G1 out and into the beam splitter Q2 for two-way splitting; the hammer head 22 is provided with a plurality of mirrors Q4, a galvanometer system Q5 and a focusing lens Q6, and the outer wall away from the hammer handle 21 is fixed with the handle 1; the plurality of mirrors Q4 are located between the galvanometer system Q5 and the focusing lens Q6, and cooperate with the beam splitter Q2, the galvanometer system Q5 and the focusing lens Q6 to respectively enter the galvanometer system Q5 and the focusing lens Q6 (for example, the first light path of the laser beam emitted by the optical isolator Q1 is directly entered into the focusing lens Q6 through the beam splitter Q2, and the second light path of the laser beam emitted by the optical isolator Q1 is entered into the galvanometer system Q5 through the plurality of mirrors Q4 after multiple reflections) ; the galvanometer system Q5 and the focusing lens Q6 are both arranged perpendicular to the hammer handle 21 and are respectively located at the opposite two end ports of the hammer head 22, so that the laser can be emitted outward to the workpiece to be cleaned of the surface oxide layer; the galvanometer system Q5 is a commonly used component on the market, which includes an electronic drive amplifier and an X-Y optical scanning head composed of a galvanometer X and a galvanometer Y; one end of the electronic drive amplifier is connected with the control card G2 through another signal line L2 along the hammer handle 21 out of the outer wall of the side of the hammer handle 21 away from the hammer head 22 and into the light source part 1, and the other end is connected with the pre-set driving motor on the X-Y optical scanning head; at this time, the signal line L2 connected between the electronic drive amplifier and the control card G2 is bundled with the single-mode optical fiber Q3 to improve the bending resistance to avoid the problem of poor signal anti-interference ability; the focusing lens Q6 is a commonly used component on the market, and the focal point thereof is adjustable; it can be understood that the galvanometer system Q5 also includes an f-θ scanning lens Q7; wherein the f-θ scanning lens Q7 is arranged on the X-Y optical scanning head, used for correcting and focusing the emitted laser on the working surface; the beam splitter Q2 can also be arranged in the hammer head 22 and at the intersection of the hammer handle 21 and the hammer head 22, and the specific situation can be adjusted according to the actual situation;

[0032] The handle 1 is made of aluminum alloy hollow tube, and its length is adjustable; wherein, the handle 1 is provided with an emergency switch 11; the emergency switch 11 comprises a button S1 and a signal transmitter S2 connected therewith; the button S1 is used for triggering the signal transmitter S2 to generate a fast start signal when being pressed from a second initial position to a second predetermined position, or closing the signal transmitter S2 to generate an emergency stop signal when being pressed from the second predetermined position to the second initial position; the signal transmitter S2 is connected with a control card G2 through a wireless communication module G3 in the controller, and is used for sending the fast start signal to the control card G2 to make the control card G2 instantaneously start the laser G1 to work when the fast start signal is generated, or sending the emergency stop signal to the control card G2 to make the control card G2 instantaneously shut down the laser G1 to work when the emergency stop signal is generated.

[0033] Wherein, based on the instruction remotely issued by the remote terminal, the control card G2 controls the start-stop of the laser G1 and the parameter modulation; or the control card G1 controls the electronic drive amplifier in the galvanometer system Q5 to drive the drive motor on the X-Y optical scanning head to act, so as to realize the real-time adjustment of the angle of the galvanometer X or the galvanometer Y.

[0034] It can be understood that the parameters of the laser G1 modulated by the control card G2 include but are not limited to laser power, scanning range, shape, scanning line spacing and scanning speed, etc. At this time, a liquid crystal screen which can input and output can be arranged on the light source part 3 or the handle 1 to locally control the start-stop of the laser G1, the parameter modulation and the real-time adjustment of the angle of the galvanometer X or the galvanometer Y, and to display the operation content and related results of the control card G2 in real time.

[0035] In the embodiment of the application, considering that the distance from the X-Y optical scanning head to the workpiece surface cannot be guaranteed to be constant during movement, a height-adjustable focal point fixer 4 is designed on the portable laser cleaning device to ensure that the focal point position does not change during a certain process. At this time, the focal point fixer 4 comprises a moving base 41, a support rod 42, two guide rails 43 and fasteners 44; the two guide rails 43 are both long hollow grooves, and are fixed on the upper surface of the moving base 41 in parallel with each other; one end of the support rod 42 is fixed to the end of the handle 1 close to the cleaning head 2, the other end extends into the gap between the two guide rails 43, and a plurality of through holes 421 are formed in the middle part between the two ends; the fastener 44 comprises a bolt and a nut; when the bolt is inserted into the corresponding through hole 421 on the two guide rails 43 and the support rod 42 and locked by the nut, the support rod 42 and the two guide rails 43 are fixed together.

[0036] The use principle of the portable laser cleaning device in the embodiment of the present application is as follows: first, the preparation work of removing the surface oxide layer of the workpiece is performed: the laser G1 is started and stopped, the parameters are modulated, and the angle of the galvanometer X Q52 or the galvanometer Y Q53 is adjusted in real time through the liquid crystal screen, or the laser G1 is started and stopped, the parameters are modulated, and the angle of the galvanometer X Q52 or the galvanometer Y Q53 is adjusted in real time through the remote terminal. Second, the construction site is entered and the work surface is positioned: after it is determined that all the preparation work is completed, the galvanometer system Q5 or the focusing lens Q6 is aligned to the work surface of the workpiece, and the height of the focal point fixer 4 is adjusted to ensure that the distance from the surface of the workpiece is constant. Finally, the laser G1 is started to work: the laser G1 is started to work through the local start and stop button 31 or through the remote terminal control control card G2, until the surface oxide layer of the workpiece is removed. At this time, when the workpiece has different work surfaces, the laser G1 can be repeatedly adjusted to work on and off, and the height of the focal point fixer 4 can be adjusted to meet the removal of the surface oxide layer of the workpiece. It should be noted that the emergency switch 11 on the handle 1 can also be used to cope with the emergency working condition of the laser G1 and the change requirement of the removal of the surface oxide layer of the workpiece.

[0037] The embodiment of the present application has the following beneficial effects:

[0038] Compared with the traditional portable laser cleaning device, the present application can solve the problems that the existing laser cleaning device cannot control the galvanometer in real time, the signal anti-interference ability is poor, and the remote control is not available, by using the control card integrated based on DSP and FPGA to automatically and remotely control the starting of the laser, the parameter setting, and the movement of the galvanometer system (such as the angle adjustment of the galvanometer X or the galvanometer Y).

[0039] The above only discloses the preferred embodiment of the present application, and of course cannot limit the scope of the right of the present application, so the equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A portable laser cleaning device, characterized in that, The utility model relates to a kind of laser cleaning device, including handle, cleaning head and light source part;Wherein, The light source part is hollow column, and laser and controller consisting of control card and wireless communication module are arranged in it;Wherein, one end of the control card is communicated with remote terminal through the wireless communication module, and the other end is connected with the control end of the laser through a signal line; The cleaning head is hollow hammer, including interconnected hammer handle and hammer head;Hammer handle is equipped with optical isolator and beam splitter, and the outer wall of the side away from the hammer head is fixed with the light source part;The incident end of the optical isolator is connected with the light emitting end of the laser through single-mode optical fiber and enters the light source part, and the exit end is aligned with the center point of the beam splitter;The beam splitter is arranged at the intersection of the hammer handle and the hammer head;The hammer head is equipped with multiple mirrors, galvanometer system and focusing lens, and the outer wall of the side away from the hammer handle is fixed with the handle;Multiple mirrors are located between the galvanometer system and the focusing lens, and cooperate with the beam splitter, the galvanometer system and the focusing lens, so that two light rays separated by the beam splitter are incident on the galvanometer system and the focusing lens respectively;The galvanometer system and the focusing lens are both arranged perpendicular to the hammer handle, and are located on the opposite ends of the hammer head respectively;The galvanometer system includes electronic drive amplifier and X-Y optical scanning head consisting of galvanometer X and galvanometer Y;One end of the electronic drive amplifier is connected with the control card through another signal line along the hammer handle and enters the light source part, and the other end is connected with the drive motor preset on the X-Y optical scanning head; Wherein, based on the instruction issued by the remote terminal, the control card controls the laser to start and stop and modulate parameters;Or, the control card controls the electronic drive amplifier in the galvanometer system to drive the drive motor on the X-Y optical scanning head to move, so as to adjust the angle of the galvanometer X or the galvanometer Y in real time.

2. The portable laser cleaning device of claim 1, wherein, Further comprising: Height-adjustable focal point fixer;Wherein, The focal point fixer includes moving base, support rod, two guide rails and fastener;The two guide rails are both long hollow grooves, and are fixed on the upper surface of the moving base in parallel with each other;One end of the support rod is fixed with the end of the handle close to the cleaning head, and the other end extends into the gap between the two guide rails, and a plurality of through holes are formed in the middle part between the two ends;The fastener includes bolt and nut; Wherein, the bolt passes through the corresponding through hole of the two guide rails and the support rod, and is locked by the nut, so as to fix the support rod and the two guide rails together.

3. The portable laser cleaning device of claim 2, wherein, The outer part of the light source part is provided with start-stop button;Wherein, the start-stop button is connected with the laser, and when it is pressed from the first initial position to the first predetermined position, the laser is started;Or, when it is pressed from the first predetermined position to the first initial position, the laser is turned off.

4. The portable laser cleaning device of claim 3, wherein, The handle is made of aluminum alloy and its length is adjustable.

5. The portable laser cleaning device of claim 4, wherein, The handle is provided with an emergency switch. The emergency switch comprises a button and a signal transmitter connected to the button. When the button is pressed from the second initial position to the second predetermined position, the signal transmitter generates a fast start signal.

6. The portable laser cleaning device of claim 5, wherein, When the button is pressed from the second predetermined position to the second initial position, the signal transmitter generates an emergency stop signal.

7. The portable laser cleaning device of claim 6, wherein, The signal transmitter is connected to the control card through a wireless communication module in the controller.

8. The portable laser cleaning device of claim 7, wherein, The f-θ scanning lens is arranged on the X-Y optical scanning head.

9. The portable laser cleaning device of claim 8, wherein, The light isolator directs the laser beam emitted by the laser to the focusing lens through the first light path split by the beam splitter.

10. The portable laser cleaning device of claim 9, wherein, The single-mode optical fiber is bundled with the signal lines connected between the electronic driving amplifier and the control card. The laser emits a laser power of 20 W / cm2 and a central wavelength of 1.06-1.07 um. The control card is integrated with a DSP chip and an FPGA single-chip microcomputer.

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