Galvanometer pneumatic box
By controlling the processing module and sensors to monitor the air pressure and water flow of the air knife and galvanometer, the problem of frequent contamination of the outer protective lens of the galvanometer was solved, and the stable operation of the galvanometer system and cost reduction were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2026-04-07
AI Technical Summary
The outer protective lens of the galvanometer is easily contaminated, leading to frequent replacements and high usage costs.
The system employs a control processing module and pressure sensors to monitor the air pressure of the air knife and galvanometer, ensuring a clean air supply for the air knife and galvanometer systems. It also prevents contamination by controlling the laser to suppress light emission and monitors water flow using a water flow sensor, ensuring stable operation of the galvanometer.
It effectively prevents spatter and fumes from contaminating the outer protective lens during galvanometer welding, reducing the frequency of lens replacement and usage costs.
Smart Images

Figure CN224088191U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a galvanometer pneumatic box related technical field, especially a kind of galvanometer pneumatic box. BACKGROUND
[0002] Galvanometer is a kind of fast deflection mirror device based on electromagnetic drive principle, mainly used for accurately controlling the pointing of laser beam or other light path. Galvanometer welding system controls the accurate movement of laser beam through high-speed galvanometer (scanning mirror), realizes quick, high-precision welding, and is especially suitable for welding requirements of thin plate material, precision parts and complex geometry. Laser can provide laser beam for galvanometer. The pneumatic box of galvanometer is a protective device for protecting galvanometer system from dust, smoke, particulate matter or other environmental pollutants. Its core function is to form a positive pressure environment around the galvanometer through clean airflow, prevent external pollutants from entering, and thus ensure the long-term stable operation of the galvanometer. At the same time, the clean gas entering the galvanometer can cool the mirror inside the galvanometer, thereby improving the precision of the galvanometer system. The air knife in the galvanometer system is a device that uses high-speed airflow to intercept splashes, smoke, particles and other substances during welding process, reduces the pollution of the outer protective lens of the galvanometer, and thus reduces the replacement frequency of the outer protective lens of the galvanometer.
[0003] When the air knife is not turned on or the air pressure is insufficient, splashes, smoke and other substances generated during the galvanometer welding process can easily pollute the outer protective lens, resulting in frequent replacement of the outer protective lens and high use cost. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of galvanometer pneumatic box to solve the problem that the above-mentioned outer protective lens is easily polluted.
[0005] To this end, the utility model adopts the technical scheme: a kind of galvanometer pneumatic box, including box, first air knife gas path system and control processing module, the first air knife gas path system includes first air knife pipeline, first air knife gas inlet, first air knife solenoid valve, first oil-water separator, pressure sensor and first air knife gas outlet;The first air knife gas inlet and the first air knife gas outlet are respectively fixedly installed on the left and right two side walls of box, the first air knife solenoid valve, first oil-water separator and pressure sensor are all fixedly installed in box, the first air knife pipeline is connected with first air knife gas inlet, first air knife solenoid valve, first oil-water separator, pressure sensor and first air knife gas outlet;Side-blowing plasma gas outlet is fixedly installed on the right side wall of box, the side-blowing plasma gas outlet is connected with side-blowing pipeline, the side-blowing pipeline is connected with first air knife pipeline, and is connected with pressure flow regulating valve, the pressure flow regulating valve is fixedly installed in box, the box is also provided with galvanometer gas path system to provide clean air for galvanometer, the control processing module is electrically connected with first air knife solenoid valve, pressure sensor and laser control system of galvanometer.
[0006] As a preferred embodiment of the above solution, the galvanometer gas path system includes a galvanometer inlet, a galvanometer solenoid valve, a triple air filter assembly, a gas flow sensor, a dual air filter assembly, a first clean air outlet, a second clean air outlet, and galvanometer piping. The galvanometer inlet is fixedly installed on the left side wall of the housing, and the first and second clean air outlets are fixedly installed on the right side wall of the housing. The galvanometer solenoid valve, the triple air filter assembly, the gas flow sensor, and the dual air filter assembly are all fixedly installed inside the housing. The galvanometer piping connects the galvanometer inlet, the solenoid valve, the triple air filter assembly, the gas flow sensor, the dual air filter assembly, and the first clean air outlet. The second clean air outlet is connected to a branch line, which is connected to the galvanometer piping. The galvanometer solenoid valve and the gas flow sensor are both electrically connected to the control processing module. Using the control processing module and the gas flow sensor enables real-time monitoring of the clean air flow supplied to the galvanometer, thereby ensuring the normal and stable operation of the galvanometer.
[0007] Further preferably, it also includes a second air knife air circuit system, which includes a second air knife pipeline, a second air knife inlet, a second air knife solenoid valve, a second oil-water separator, and a second air knife outlet. The second air knife inlet and the second air knife outlet are respectively fixedly installed on the left and right side walls of the housing. The second air knife solenoid valve and the second oil-water separator are both fixedly installed inside the housing. The second air knife pipeline connects the second air knife inlet, the second air knife solenoid valve, the second oil-water separator, and the second air knife outlet. The second air knife solenoid valve is electrically connected to the control processing module.
[0008] A further preferred embodiment includes a water flow system, which comprises a water flow pipe, an inlet, a water flow sensor, and an outlet. The inlet and outlet are fixedly installed on the left and right side walls of the housing, respectively. The water flow sensor is fixedly installed inside the housing. The water flow pipe connects the inlet, the water flow sensor, and the outlet. The water flow sensor is electrically connected to the control processing module. Using the control processing module and the water flow sensor enables real-time monitoring of the water flow supplied to the galvanometer, thereby better ensuring the normal and stable operation of the galvanometer.
[0009] A further preferred embodiment is that a handle is fixedly provided at the top of the box.
[0010] A further preferred embodiment is that a lifting ring is fixedly provided at the top of the box.
[0011] A further preferred embodiment is that a mounting plate is fixedly provided on the housing, and the mounting plate has mounting holes.
[0012] The beneficial effects of this utility model are as follows: by using a control processing module and a pressure sensor, the laser of the galvanometer can be controlled to stop emitting light when the air knife is not turned on (i.e., the air knife is empty) or the air pressure is insufficient, thus stopping the welding of the galvanometer. This avoids the contamination of the outer protective lens by spatter, smoke and other pollutants generated during the welding process of the galvanometer, improves the safety of the outer protective lens, and reduces the frequency and cost of replacing the outer protective lens. Attached Figure Description
[0013] Fig. 1 This is a schematic diagram of the structure of this utility model.
[0014] Fig. 2 This is a schematic diagram of the structure of the left end of the box in this utility model.
[0015] Fig. 3 This is a schematic diagram of the internal structure of the box in this utility model. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] like Figs. 1-3 As shown, a galvanometer pneumatic box includes a box body 1, a first air knife air circuit system, and a control processing module. The first air knife air circuit system includes a first air knife pipe 24, a first air knife inlet 9, a first air knife solenoid valve 21, a first oil-water separator 23, a pressure sensor 22, and a first air knife outlet 5. The first air knife inlet 9 and the first air knife outlet 5 are respectively fixedly installed on the left and right side walls of the box body 1. The first air knife solenoid valve 21, the first oil-water separator 23, and the pressure sensor 22 are all fixedly installed inside the box body 1. The first air knife pipe 24 connects the first air knife inlet 9, the first air knife solenoid valve 21, the first oil-water separator 23, the pressure sensor 22, and the first air knife outlet 5. A side-blowing plasma outlet 4 is fixedly installed on the right side wall of the housing 1. The side-blowing plasma outlet 4 is connected to a side-blowing pipe 26, which is connected to a first air knife pipe 24 and a pressure and flow regulating valve 25. The pressure and flow regulating valve 25 is fixedly installed inside the housing 1. A galvanometer air circuit system is also provided on the housing 1 to provide clean air to the galvanometer. The control and processing module is electrically connected to the first air knife solenoid valve 21, the pressure sensor 22, and the laser control system of the galvanometer.
[0018] When supplying air to the air knife, the control processing module controls the opening of the first air knife solenoid valve 21, allowing the airflow to enter the first air knife pipeline 24 from the first air knife inlet 9. After passing through the first air knife solenoid valve 21, the first oil-water separator 23, and the pressure sensor 22, the airflow is split into two streams. One stream exits from the first air knife outlet 5, and the other stream passes through the side-blowing pipeline 26 and the pressure-flow regulating valve 25 before exiting from the side-blowing plasma outlet 4. The first air knife outlet 5 and the side-blowing plasma outlet 4 can be connected to the corresponding air paths of the galvanometer, thereby enabling the airflow exiting from the first air knife outlet 5 to directly supply the air knife, ensuring that the air supply pressure and flow rate of the air knife reach the predetermined range. The supply pressure is above 6 Bar, and the airflow exiting from the side-blowing plasma outlet 4 can be used for plasma side-blowing. The control processing module is electrically connected to the laser control system board of the galvanometer. The pressure sensor 22 will feed back pressure data to the control processing module through analog signals. When the air knife is not turned on or the air pressure is insufficient, the control processing module will know that the air pressure in the first air knife pipeline 24 is lower than the predetermined value and will send a PLCInterlock signal to the board. When the board receives the transition of this signal, it will disconnect the modulation signal and power analog control signal to the laser. The laser will be prohibited from emitting light, thereby stopping the welding of the galvanometer. The control processing module can be a PLC, and the airflow is flowing compressed air.
[0019] The galvanometer pneumatic system includes a galvanometer inlet 8, a galvanometer solenoid valve 15, a triple air filter assembly 17, a gas flow sensor 18, a dual air filter assembly 19, a first clean air outlet 2, a second clean air outlet 3, and a galvanometer pipeline 16. The galvanometer inlet 8 is fixedly installed on the left side wall of the housing 1. The first clean air outlet 2 and the second clean air outlet 3 are fixedly installed on the right side wall of the housing 1. The galvanometer solenoid valve 15, the triple air filter assembly 17, the gas flow sensor 18, and the dual air filter assembly 19 are all fixedly installed inside the housing 1. The galvanometer pipeline 16 connects the galvanometer inlet 8, the galvanometer solenoid valve 15, the triple air filter assembly 17, the gas flow sensor 18, the dual air filter assembly 19, and the first clean air outlet 2. The second clean air outlet 3 is connected to a diversion pipeline 20, which is connected to the galvanometer pipeline 16. The galvanometer solenoid valve 15 and the gas flow sensor 18 are both electrically connected to the control processing module.
[0020] When supplying air to the galvanometer, the control processing module controls the galvanometer solenoid valve 15 to open, allowing cooled and dried compressed air to enter the galvanometer pipeline 16 through the galvanometer inlet 8. The cooled and dried compressed air then passes through the solenoid valve 15 into the air filter triplet 17, and then through the gas flow sensor 18 into the air filter duplex 19. After passing through the air filter duplex 19, the cooled and dried compressed air becomes clean air meeting ISO 8573 1-4-1 standards, and is divided into two paths. One path of clean air exits from the first clean air outlet 2, and the other path exits from the second clean air outlet 3 through the split pipeline 20. The first clean air outlet 2 and the second clean air outlet 3 can be connected to the corresponding air paths of the galvanometer, thus ensuring that the air exiting from the first clean air outlet 2 enters the galvanometer and creates positive pressure to prevent external dust from entering, while the air exiting from the second clean air outlet 3 enters the galvanometer and cools it. The gas flow sensor 18 can feed back gas flow data to the control processing module via analog signals. The air filter triplet 17 is a modular integration of an air filter, an oil mist separator, and a micro-mist separator, which is existing technology and will not be described in detail here. The air filter dualt 19 is a modular integration of a polymer membrane air dryer and a deodorizing filter, which is existing technology and will not be described in detail here.
[0021] It also includes a second air knife air circuit system, which includes a second air knife pipeline 29, a second air knife inlet 10, a second air knife solenoid valve 27, a second oil-water separator 28, and a second air knife outlet 6. The second air knife inlet 10 and the second air knife outlet 6 are respectively fixedly installed on the left and right side walls of the housing 1. The second air knife solenoid valve 27 and the second oil-water separator 28 are both fixedly installed inside the housing 1. The second air knife pipeline 29 connects the second air knife inlet 10, the second air knife solenoid valve 27, the second oil-water separator 28, and the second air knife outlet 6. The second air knife solenoid valve 27 is electrically connected to the control processing module.
[0022] When air is supplied to the air knife, the control module controls the second air knife solenoid valve 27 to open, allowing airflow to enter the second air knife pipeline 29 through the second air knife inlet 10. The airflow then passes through the second air knife solenoid valve 27 and the second oil-water separator 28, and exits from the second air knife outlet 6. The second air knife outlet 6 connects to the air knife air path of the galvanometer, thus enabling the airflow exiting the second air knife outlet 6 to enter the air knife for supply. The first and second air knife air path systems are two independent air path systems. Using two independent air path systems to supply air to the galvanometer's air knife makes it easier to ensure that the air knife pressure and flow rate reach the predetermined range.
[0023] It also includes a water flow system, which includes a water flow pipe 31, a water inlet 11, a water flow sensor 30, and a water outlet 7. The water inlet 11 and the water outlet 7 are respectively fixedly installed on the left and right side walls of the housing 1. The water flow sensor 30 is fixedly installed inside the housing 1. The water flow pipe 31 connects the water inlet 11, the water flow sensor 30, and the water outlet 7. The water flow sensor 30 is electrically connected to the control processing module.
[0024] Deionized water is introduced into the water flow pipe 31 through the inlet 11. After passing through the water flow sensor 30, the deionized water is discharged through the outlet 7. The outlet 7 is connected to the corresponding water system of the galvanometer. The water flow sensor 30 feeds back water flow data to the control processing module via analog signals to detect whether the water flow rate entering the galvanometer meets the standard. The control processing module can transmit the gas flow data and water flow data to the software interface for display, facilitating the tracing of welding defects.
[0025] A handle 13 is fixedly installed at the top of the box 1.
[0026] The handle 13 makes it easier to move and transport the entire box 1.
[0027] A lifting ring 14 is fixedly installed at the top of the box 1.
[0028] The lifting ring 14 facilitates the hoisting of the box 1.
[0029] A mounting plate 12 is fixedly installed on the housing 1, and mounting holes are provided on the mounting plate 12.
[0030] The mounting plate 12 and the mounting holes enable the installation of the box 1, that is, to move the box 1 so that the rods on the side wall of the room pass through the mounting holes to form a suspended installation of the box 1. There can be multiple mounting plates 12.
[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A galvanometer pneumatic box, comprising a box body (1), a first air knife air circuit system, and a control and processing module, characterized in that: The first air knife air circuit system includes a first air knife pipeline (24), a first air knife inlet (9), a first air knife solenoid valve (21), a first oil-water separator (23), a pressure sensor (22), and a first air knife outlet (5); The first air knife inlet (9) and the first air knife outlet (5) are fixedly installed on the left and right side walls of the housing (1), respectively. The first air knife solenoid valve (21), the first oil-water separator (23) and the pressure sensor (22) are all fixedly installed inside the housing (1). The first air knife pipeline (24) connects the first air knife inlet (9), the first air knife solenoid valve (21), the first oil-water separator (23), the pressure sensor (22) and the first air knife outlet (5). A side-blowing plasma outlet (4) is fixedly installed on the right side wall of the housing (1). The side-blowing plasma outlet (4) is connected to a side-blowing pipe (26). The side-blowing pipe (26) is connected to the first air knife pipe (24) and is connected to a pressure and flow regulating valve (25). The pressure and flow regulating valve (25) is fixedly installed inside the housing (1). A galvanometer air path system is also provided on the housing (1) to provide clean air to the galvanometer. The control processing module is electrically connected to the first air knife solenoid valve (21), the pressure sensor (22), and the laser control system of the galvanometer.
2. The galvanometer pneumatic box according to claim 1, characterized in that: The galvanometer gas path system includes a galvanometer inlet (8), a galvanometer solenoid valve (15), a triple air filter assembly (17), a gas flow sensor (18), a dual air filter assembly (19), a first clean air outlet (2), a second clean air outlet (3), and a galvanometer pipeline (16). The galvanometer inlet (8) is fixedly installed on the left side wall of the housing (1), and the first clean air outlet (2) and the second clean air outlet (3) are fixedly installed on the right side wall of the housing (1). The galvanometer solenoid valve (15), the triple air filter assembly (17), the gas flow sensor (18), the first clean air outlet (2), the second clean air outlet (3), and the galvanometer pipeline (16) are all fixedly installed on the right side wall of the housing (1). The flow sensor (18) and the air filter assembly (19) are both fixedly installed inside the housing (1). The galvanometer pipeline (16) is connected to the galvanometer inlet (8), the galvanometer solenoid valve (15), the air filter assembly (17), the gas flow sensor (18), the air filter assembly (19), and the first clean air outlet (2). The second clean air outlet (3) is connected to a diversion pipeline (20), which is connected to the galvanometer pipeline (16). The galvanometer solenoid valve (15) and the gas flow sensor (18) are both electrically connected to the control processing module.
3. The galvanometer pneumatic box according to claim 1, characterized in that: It also includes a second air knife air circuit system, which includes a second air knife pipeline (29), a second air knife inlet (10), a second air knife solenoid valve (27), a second oil-water separator (28), and a second air knife outlet (6). The second air knife inlet (10) and the second air knife outlet (6) are respectively fixedly installed on the left and right side walls of the housing (1). The second air knife solenoid valve (27) and the second oil-water separator (28) are both fixedly installed inside the housing (1). The second air knife pipeline (29) connects the second air knife inlet (10), the second air knife solenoid valve (27), the second oil-water separator (28), and the second air knife outlet (6). The second air knife solenoid valve (27) is electrically connected to the control processing module.
4. A galvanometer pneumatic box according to claim 1, characterized in that: It also includes a water flow system, which includes a water flow pipe (31), an inlet (11), a water flow sensor (30), and an outlet (7). The inlet (11) and the outlet (7) are respectively fixedly installed on the left and right side walls of the housing (1). The water flow sensor (30) is fixedly installed inside the housing (1). The water flow pipe (31) connects the inlet (11), the water flow sensor (30), and the outlet (7). The water flow sensor (30) is electrically connected to the control processing module.
5. A galvanometer pneumatic box according to claim 1, characterized in that: A handle (13) is fixedly installed at the top of the box (1).
6. A galvanometer pneumatic box according to claim 1, characterized in that: A lifting ring (14) is fixedly installed at the top of the box (1).
7. A galvanometer pneumatic box according to claim 1, characterized in that: An installation plate (12) is fixedly installed on the housing (1), and the installation plate (12) has installation holes.