Multipurpose modular laser processing head

Abstract

The invention belongs to the field of laser processing equipment, and provides a multipurpose modular laser processing head which comprises a module mounting mechanism, the module mounting mechanism comprises a laser processing head body, a functional module is arranged at the front end of the laser processing head body, and a connecting mechanism is arranged at the rear end of the laser processing head. A mounting groove is formed in the front end of the laser processing head, a plurality of quick-change interfaces are formed in the mounting groove, a sealing gasket is arranged on the surface of a laser processing head main body on the outer side of the mounting groove, and the sealing gasket is used for preventing dust and impurities from entering the processing head; multiple functions are integrated through one treatment head, the equipment purchase cost and the occupied area are reduced, various surface treatment requirements are met, the equipment utilization rate is increased, automobile remanufacturing enterprises do not need to purchase multiple pieces of single-function laser equipment, and the equipment input cost is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of laser processing equipment, and more specifically, it is a multi-purpose modular laser processing head. Background Art

[0002] In the fields of automotive remanufacturing and other industrial product processing, there is a wide demand for removing paint, rust, oil, and stains from the surface of workpieces. Traditional laser processing heads have a single function. When facing different processing tasks, the entire equipment needs to be replaced, which is cumbersome to operate and costly. For example, during the remanufacturing of an automotive engine block, it is necessary to remove the old paint on the surface and clean the internal oil and rust. Using a single-function laser head requires multiple equipment replacements, seriously affecting production efficiency. In addition, the specifications of different-function laser heads vary greatly, and the optical components cannot be used interchangeably, resulting in high maintenance and usage costs, which limits the efficient application of laser processing technology in multiple scenarios.

[0003] Therefore, those skilled in the art have proposed a multi-purpose modular laser processing head to solve the problems raised in the background art. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a multi-purpose modular laser processing head to solve the problems that a single-function laser head requires multiple equipment replacements, seriously affecting production efficiency. In addition, the specifications of different-function laser heads vary greatly, the optical components cannot be used interchangeably, and the maintenance and usage costs are high, which limits the efficient application of laser processing technology in multiple scenarios.

[0005] The multi-purpose modular laser processing head includes a module installation mechanism. The module installation mechanism includes a laser processing head main body. A function module is provided at the front end of the laser processing head main body. A connection mechanism is provided at the rear end of the laser processing head. An installation groove is provided at the front end of the laser processing head. A plurality of quick-change interfaces are provided inside the installation groove. A sealing gasket is provided on the surface of the laser processing head main body outside the installation groove. The sealing gasket is used to prevent dust and impurities from entering the inside of the processing head. A retaining pin is provided inside each quick-change interface. Each retaining pin is equipped with a spring. The plurality of quick-change interfaces are arranged in a circular array. An installation ring is provided outside the quick-change interface. The two ends of the spring are respectively fixed to the retaining pin and the installation ring. A telescopic rod is provided inside the spring. The connection mechanism includes a connection base, and the connection base is fixedly connected to the laser processing head main body.

[0006] Preferably, the laser processing head main body is cylindrical, with an overall length of 300 mm and a diameter of about 80 mm. The connection base is cylindrical, with a diameter of 80 mm and a length of 80 mm. The quick-change interfaces are located at the front end of the base and are in a circular structure, with a diameter of about 70 mm.

[0007] Preferably, a connection groove is formed on one side of the connection base away from the laser processing head body. A standard interface assembly is arranged inside the connection groove. The standard interface assembly is used for connecting with the laser device body. The standard interface assembly includes an optical fiber interface for transmitting laser. There is a fixing device around the optical fiber interface to ensure stable optical fiber connection.

[0008] Preferably, a control circuit interface and a gas pipeline interface are also arranged on the side surface of the connection base. The control circuit interface and the gas pipeline interface are respectively used for connecting the control circuit and the gas pipeline. The control circuit interface and the gas pipeline interface are used to provide control signals and auxiliary gas for the laser processing head body. There are several heat sinks on the outer surface of the connection base. The heat sinks are strip-shaped and evenly distributed on the circumferential surface of the connection base. The heat sinks are used to dissipate the heat generated when the laser processing head body works.

[0009] Preferably, the functional module includes a paint removal module, a rust removal module, an oil removal module, and a stain removal module.

[0010] Preferably, the paint removal module is cylindrical, with an overall length of 150 mm and a diameter of 60 mm. A laser emission window is arranged at the front end of the paint removal module. The laser emission window is made of special optical material, which can effectively protect the internal optical elements. A cooling component is arranged around the laser emission window. The cooling component adopts the water-cooling method to take away the heat generated during laser emission through circulating water. There is a laser generator inside the paint removal module. The laser generator is cuboid-shaped, with dimensions of 100 mm × 40 mm × 30 mm. The laser generator is used to generate high-energy short-pulse laser.

[0011] Preferably, the rust removal module is cylindrical, with an overall length of 150 mm and a diameter of 60 mm. A laser emission window is arranged at the front end of the rust removal module. The laser emission window is made of high-temperature resistant material and can withstand the high-temperature rust removal process. A laser generator is arranged inside the rust removal module. The laser generator inside the rust removal module adopts medium-power continuous laser technology and can generate a stable laser beam. There is an auxiliary gas injection port on the side surface of the rust removal module. The auxiliary gas injection port is circular, with a diameter of 10 mm, and is used for injecting inert gas to prevent secondary oxidation of the metal surface.

[0012] Preferably, the degreasing module has a length of 150 mm and a diameter of 60 mm. A laser emission window is provided at the front end of the degreasing module. The laser emission window at the front end of the degreasing module adopts wide-width laser technology, and the window width is about 30 mm, which can achieve large-area degreasing. There is a gas mixing component inside the degreasing module. The gas mixing component can mix the auxiliary gas and the environmentally friendly surfactant and spray them out from the spray port to improve the degreasing effect. The spray port is strip-shaped with a length of about 40 mm, which can evenly spray the mixed gas.

[0013] Preferably, the stain removal module has a length of 150 mm and a diameter of 60 mm. A laser emission window is provided at the front end of the stain removal module. The laser emission window at the front end of the stain removal module can adjust the laser wavelength and pulse frequency according to the stain characteristics. There is an optical adjustment module inside the stain removal module. The optical adjustment module can focus and adjust the laser beam to ensure the processing effect.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By integrating multiple functions in one processing head, the present invention reduces the equipment procurement cost and floor area, is applicable to various surface treatment requirements, improves the equipment utilization rate, and automobile remanufacturing enterprises do not need to purchase multiple single-function laser devices, reducing the equipment investment cost.

[0016] 2. Each functional module of the present invention is independent. When damaged, only the corresponding module needs to be replaced, without overall repair or replacement, shortening the downtime and reducing the maintenance cost and difficulty. For example, if the laser generator of the paint removal module is damaged, only the generator of this module needs to be replaced, without repairing the entire processing head. Moreover, the paint removal module uses short-pulse high-energy laser to instantly vaporize the paint layer, precisely controlling the energy density to avoid damaging the workpiece substrate; the rust removal module uses medium-power continuous laser, and uses the laser thermal effect to make the rust layer expand and peel off by heating, and cooperates with inert gas purging to prevent secondary oxidation; the degreasing module combines wide-width laser with auxiliary gas, and the laser heating liquefies the oil stain, and the auxiliary gas (such as compressed air or nitrogen) blows it off the workpiece surface. For stubborn oil stains, an environmentally friendly surfactant can be added to enhance the cleaning effect; the stain removal module adjusts the laser wavelength and pulse frequency according to the stain characteristics to decompose the stain molecules and achieve the cleaning purpose.

[0017] 3. The present invention can quickly replace functional modules, reduce equipment switching time, and improve production efficiency. Moreover, through the built-in intelligent chip in the processing head, it is wirelessly connected to the equipment control system. When replacing the module, the chip automatically identifies the module type and transmits its parameters to the control system. The control system automatically adjusts the laser output parameters (power, frequency, pulse width, etc.) according to the preset program and workpiece processing requirements. For example, when switching to the rust removal module after removing the paint from automotive parts, the control system automatically increases the laser power and adjusts the pulse frequency to ensure the precise execution of different processing tasks. The intelligent control system automatically adjusts the parameters to avoid manual setting errors, ensure the consistency of processing effects, and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of the module installation mechanism of the present invention;

[0020] Figure 3 is a schematic diagram of the structure of the connection mechanism of the present invention.

[0021] In the figure:

[0022] 1. Module installation mechanism; 101. Laser processing head main body; 102. Installation groove; 103. Sealing gasket; 104. Quick-change interface; 105. Spring; 106. Pin; 2. Connection mechanism; 201. Connection base; 202. Connection groove; 203. Standard interface component; 204. Heat sink; 205. Control line interface; 206. Gas pipeline interface; 3. Functional module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] As shown in Figure 1 to Figure 3 shown:

[0025] Embodiment 1: The present invention provides a multi-purpose modular laser processing head, including a module installation mechanism 1, the module installation mechanism 1 includes a laser processing head body 101, a functional module 3 is arranged at the front end of the laser processing head body 101, a connecting mechanism 2 is arranged at the rear end of the laser processing head, a mounting groove 102 is arranged at the front end of the laser processing head, a plurality of quick-change interfaces 104 are arranged inside the mounting groove 102, a sealing gasket 103 is arranged on the surface of the laser processing head body 101 outside the mounting groove 102, and the sealing gasket 103 is used to prevent dust and impurities from entering the interior of the processing head, a bayonet 106 is arranged inside each quick-change interface 104, and each bayonet 106 is equipped with a spring 105, and a plurality of quick-change interfaces 104 are arranged in a ring array, and a mounting ring is arranged on the outside of the quick-change interface 104, and two ends of the spring 105 are respectively fixedly connected to the bayonet 106 and the mounting ring, and a telescopic rod is arranged on the inside of the spring 105, and the connecting mechanism 2 includes a connecting base 201, and the connecting base 201 is fixedly connected to the laser processing head body 101.

[0026] Furthermore, the laser processing head body 101 is cylindrical, with an overall length of 300 mm and a diameter of approximately 80 mm. The connecting base 201 is cylindrical, with a diameter of 80 mm and a length of 80 mm. The quick-change interface 104 is located at the front end of the base, has a ring structure, and has a diameter of approximately 70 mm. The laser processing head body 101 has a built-in smart chip that is wirelessly connected to the equipment control system. When replacing the module, the chip automatically identifies the module type and transmits its parameters to the control system. The control system automatically adjusts the laser output parameters (power, frequency, pulse width, etc.) according to the preset program and workpiece processing requirements.

[0027] Furthermore, a connection groove 202 is provided on the side of the connection base 201 away from the laser processing head body 101, and a standard interface component 203 is arranged inside the connection groove 202. The standard interface component 203 is used to connect with the laser equipment body. The standard interface component 203 includes an optical fiber interface, and the optical fiber interface is used to transmit laser. There are fixing devices around the optical fiber interface to ensure the stability of the optical fiber connection.

[0028] Furthermore, a control circuit interface 205 and a gas pipeline interface 206 are also provided on the side of the connecting base 201. The control circuit interface 205 and the gas pipeline interface 206 are respectively used to connect the control circuit and the gas pipeline. The control circuit interface 205 and the gas pipeline interface 206 are used to provide control signals and auxiliary gases for the laser processing head body 101. There are several heat sinks 204 on the outer surface of the connecting base 201. The heat sinks 204 are strip-shaped and evenly distributed on the circumferential surface of the connecting base 201. The heat sinks 204 are used to dissipate the heat generated when the laser processing head body 101 is working.

[0029] Furthermore, the functional module 3 includes a paint removal module, which is cylindrical in shape, with an overall length of 150 mm and a diameter of 60 mm. A laser emission window is provided at the front end of the paint removal module. The laser emission window is made of special optical materials and can effectively protect the internal optical components. A cooling component is provided around the laser emission window. The cooling component adopts water cooling to take away the heat generated during laser emission through circulating water. There is a laser generator inside the paint removal module. The laser generator is in the shape of a rectangular parallelepiped with dimensions of 100 mm×40 mm×30 mm. The laser generator is used to generate high-energy short-pulse laser.

[0030] As can be seen from the above, the staff will take out the paint removal module, align it with the quick-change interface 104 and insert it. When a "click" sound is heard or the indicator light is seen, it means that the module has been correctly installed and locked. Then, the connecting base 201 is connected to the laser equipment body through the standard interface to ensure the correct docking of the laser transmission optical fiber, control line and gas pipeline. After the installation is completed, the equipment is calibrated and the parameters are debugged to make the processing head and the laser equipment work together. At this time, the built-in smart chip of the laser processing head body 101 is wirelessly connected to the equipment control system. The chip automatically identifies the module type and transmits its parameters to the control system. The control system automatically adjusts the laser output parameters (power, frequency, pulse width, etc.) according to the preset program and workpiece processing requirements, and the paint removal task can begin.

[0031] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that the functional module 3 includes a rust removal module, which is cylindrical in shape, with an overall length of 150 mm and a diameter of 60 mm. A laser emission window is provided at the front end of the rust removal module. The laser emission window is made of high-temperature resistant material and can withstand high-temperature rust removal process. A laser generator is provided inside the rust removal module. The laser generator inside the rust removal module adopts medium-power continuous laser technology and can generate a stable laser beam. An auxiliary gas injection port is provided on the side of the rust removal module. The auxiliary gas injection port is circular and has a diameter of 10 mm. It is used to inject inert gas to prevent secondary oxidation of the metal surface.

[0032] As can be seen from the above, the operator only needs to press the unlocking button of the quick-change interface 104 to drive the expansion rod to move the latch 106 upward, and the spring 105 pushes the latch 106 to loosen, then the current module can be easily pulled out. Then align the rust removal module with the quick-change interface 104 and insert it. When hearing a "click" sound or seeing the indicator light on, it indicates that the module has been correctly installed and locked. Then connect the connection base 201 to the main body of the laser device through the standard interface to ensure the correct docking of the laser transmission optical fiber, control circuit and gas pipeline. After the installation is completed, perform equipment calibration and parameter debugging to make the processing head work in coordination with the laser device. At this time, wirelessly connect the built-in intelligent chip of the laser processing head main body 101 to the equipment control system. The chip automatically identifies the module type and transmits its parameters to the control system. The control system automatically adjusts the laser output parameters (power, frequency, pulse width, etc.) according to the preset program and the workpiece processing requirements, and then the rust removal task can be started.

[0033] Embodiment 3: This embodiment is basically the same as the previous embodiment, except that the functional module 3 includes a degreasing module. The length of the degreasing module is 150 mm and the diameter is 60 mm. A laser emission window is provided at the front end of the degreasing module. The laser emission window at the front end of the degreasing module adopts wide-width laser technology, and the window width is about 30 mm, which can achieve large-area degreasing. There is a gas mixing component inside the degreasing module. The gas mixing component can mix the auxiliary gas and the environmentally friendly surfactant and spray them out from the spray port to improve the degreasing effect. The spray port is strip-shaped, with a length of about 40 mm, and can evenly spray the mixed gas.

[0034] As can be seen from the above, the operator only needs to press the unlocking button of the quick-change interface 104 to drive the expansion rod to move the latch 106 upward, and the spring 105 pushes the latch 106 to loosen, then the current module can be easily pulled out. Then align the degreasing module with the quick-change interface 104 and insert it. When hearing a "click" sound or seeing the indicator light on, it indicates that the module has been correctly installed and locked. Then connect the connection base 201 to the main body of the laser device through the standard interface to ensure the correct docking of the laser transmission optical fiber, control circuit and gas pipeline. After the installation is completed, perform equipment calibration and parameter debugging to make the processing head work in coordination with the laser device. At this time, wirelessly connect the built-in intelligent chip of the laser processing head main body 101 to the equipment control system. The chip automatically identifies the module type and transmits its parameters to the control system. The control system automatically adjusts the laser output parameters (power, frequency, pulse width, etc.) according to the preset program and the workpiece processing requirements, and then the degreasing task can be started.

[0035] Embodiment 4: This embodiment is basically the same as the previous embodiment, except that the functional module 3 includes a stain removal module, the stain removal module has a length of 150 mm and a diameter of 60 mm, a laser emission window is provided at the front end of the stain removal module, and the laser emission window at the front end of the stain removal module can adjust the laser wavelength and pulse frequency according to the characteristics of the stains, and an optical adjustment module is provided inside the stain removal module, and the optical adjustment module can focus and adjust the laser beam to ensure the treatment effect.

[0036] As can be seen from the above, the operator only needs to press the unlocking button of the quick-change interface 104, so that the telescopic rod drives the latch 106 to move up, and the spring 105 pushes the latch 106 to release, and the current module can be easily pulled out, and then the stain removal module is aligned with the quick-change interface 104 and inserted. A "click" sound is heard or the indicator light is seen to light up, indicating that the module has been correctly installed and locked. Then, the connection base 201 is connected to the laser equipment body through the standard interface to ensure the correct docking of the laser transmission optical fiber, control line and gas pipeline. After the installation is completed, the equipment is calibrated and the parameters are debugged to make the processing head and the laser equipment work together. At this time, the built-in smart chip of the laser processing head body 101 is wirelessly connected to the equipment control system. The chip automatically identifies the module type and transmits its parameters to the control system. The control system automatically adjusts the laser output parameters (power, frequency, pulse width, etc.) according to the preset program and workpiece processing requirements, and the stain removal task can be started.

[0037] Working principle: The staff takes out the corresponding functional module 3, and inserts the functional module 3 into the quick-change interface 104. When a "click" sound is heard or the indicator light is seen, it indicates that the module has been correctly installed and locked. Then the connecting base 201 is connected to the laser equipment body through the standard interface to ensure the correct docking of the laser transmission optical fiber, control line and gas pipeline. After the installation is completed, the equipment is calibrated and the parameters are debugged to make the processing head and the laser equipment work together. At this time, the built-in smart chip of the laser processing head body 101 is wirelessly connected to the equipment control system. The chip automatically identifies the module type and transmits its parameters to the control system. The control system automatically adjusts the laser output parameters (power, frequency, pulse width, etc.) according to the preset program and workpiece processing requirements, and then the corresponding task can be started.

[0038] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. Multi-purpose modular laser processing head, characterized in that: It includes a module installation mechanism (1), and the module installation mechanism (1) includes a laser processing head body (101). A functional module (3) is provided at the front end of the laser processing head body (101), and a connection mechanism (2) is provided at the rear end of the laser processing head. An installation groove (102) is provided at the front end of the laser processing head, and a number of quick-change interfaces (104) are arranged inside the installation groove (102). A sealing gasket (103) is arranged on the surface of the laser processing head body (101) outside the installation groove (102), and the sealing gasket (103) is used to prevent dust and impurities from entering the inside of the processing head. A retaining pin (106) is arranged inside each quick-change interface (104), and each retaining pin (106) is equipped with a spring (105). The number of quick-change interfaces (104) is arranged in a circular array. An installation ring is arranged outside the quick-change interface (104), and the two ends of the spring (105) are fixedly connected to the retaining pin (106) and the installation ring respectively. An expansion rod is arranged inside the spring (105). The connection mechanism (2) includes a connection base (201), and the connection base (201) is fixedly connected to the laser processing head body (101).

2. The multi-purpose modular laser processing head according to claim 1, wherein: The laser processing head body (101) is arranged in a cylindrical shape, with an overall length of 300 mm and a diameter of about 80 mm. The connection base (201) is arranged in a cylindrical shape, with a diameter of 80 mm and a length of 80 mm. The quick-change interface (104) is located at the front end of the base and is in a ring structure, with a diameter of about 70 mm.

3. The multi-purpose modular laser processing head according to claim 1, wherein: A connection groove (202) is provided on the side of the connection base (201) away from the laser processing head body (101), and a standard interface component (203) is arranged inside the connection groove (202). The standard interface component (203) is used to connect to the laser device body. The standard interface component (203) includes an optical fiber interface, and the optical fiber interface is used to transmit laser. There is a fixing device around the optical fiber interface to ensure stable optical fiber connection.

4. The multi-purpose modular laser processing head according to claim 3, wherein: A control circuit interface (205) and a gas pipeline interface (206) are also arranged on the side of the connection base (201). The control circuit interface (205) and the gas pipeline interface (206) are respectively used to connect the control circuit and the gas pipeline. The control circuit interface (205) and the gas pipeline interface (206) are used to provide a control signal and auxiliary gas for the laser processing head body (101). A number of heat sinks (204) are arranged on the outer surface of the connection base (201). The heat sinks (204) are in a strip shape and are evenly distributed on the circumferential surface of the connection base (201). The heat sinks (204) are used to dissipate the heat generated when the laser processing head body (101) works.

5. The multi-purpose modular laser processing head according to claim 1, wherein: The functional module (3) includes a paint removal module, a rust removal module, an oil removal module, and a stain removal module.

6. The multi-purpose modular laser processing head according to claim 5, wherein: The paint removal module is cylindrical, with an overall length of 150 mm and a diameter of 60 mm. A laser emission window is provided at the front end of the paint removal module. The laser emission window is made of special optical material, which can effectively protect the internal optical components. A cooling component is arranged around the laser emission window. The cooling component adopts the water-cooling method to take away the heat generated during laser emission through circulating water. There is a laser generator inside the paint removal module. The laser generator is arranged in a cuboid shape with dimensions of 100 mm×40 mm×30 mm. The laser generator is used to generate high-energy short-pulse laser.

7. The multi-purpose modular laser processing head according to claim 5, characterized in that: The rust removal module is cylindrical, with an overall length of 150 mm and a diameter of 60 mm. A laser emission window is provided at the front end of the rust removal module. The laser emission window is made of high-temperature resistant material and can withstand the high-temperature rust removal process. A laser generator is arranged inside the rust removal module. The laser generator inside the rust removal module adopts medium-power continuous laser technology and can generate a stable laser beam. There is an auxiliary gas injection port on the side of the rust removal module. The auxiliary gas injection port is circular with a diameter of 10 mm and is used to inject inert gas to prevent secondary oxidation of the metal surface.

8. The multi-purpose modular laser processing head according to claim 5, characterized in that: The oil removal module has a length of 150 mm and a diameter of 60 mm. A laser emission window is provided at the front end of the oil removal module. The laser emission window at the front end of the oil removal module adopts wide-width laser technology, and the window width is about 30 mm, which can achieve large-area oil removal. There is a gas mixing component inside the oil removal module. The gas mixing component can mix the auxiliary gas and the environmentally friendly surfactant and then spray them out from the injection port to improve the oil removal effect. The injection port is strip-shaped with a length of about 40 mm and can evenly spray the mixed gas.

9. The multi-purpose modular laser processing head according to claim 5, characterized in that: The stain removal module has a length of 150 mm and a diameter of 60 mm. A laser emission window is provided at the front end of the stain removal module. The laser emission window at the front end of the stain removal module can adjust the laser wavelength and pulse frequency according to the stain characteristics. There is an optical adjustment module inside the stain removal module. The optical adjustment module can focus and adjust the laser beam to ensure the treatment effect.

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