Laser device and laser processing equipment

Abstract

The utility model discloses a laser device and laser processing equipment. The laser device comprises a laser emitting component and a light shield arranged at one end of the laser emitting component. The laser emitting component comprises a cooling fan and a laser component which are arranged in a stacked mode. A light outlet is formed in the end, away from the laser emitting component, of the light shield. And laser emitted from the laser component enters the interior of the light shield and is emitted from the light outlet. The outer surface of the light shield is used for guiding heat dissipation airflow output by the heat dissipation fan outside the light shield. The heat dissipation airflow is not located in the light shield, so that the heat dissipation airflow cannot flow in series and rotate in the light shield, smoke dust attached in the rotating airflow is prevented from making contact with the laser component, the possibility that smoke dust generated by a workpiece is accumulated in the laser component when laser acts on the workpiece is reduced, and therefore the machining efficiency of the laser device is improved; and the service life of the laser component is prolonged.

Description

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on April 7, 2023, with application number 202320805133.0 and application name “Laser device and laser processing equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of laser processing technology, and in particular to a laser device and laser processing equipment. Background Art

[0003] The laser device is an important part of laser processing equipment (such as laser engraving equipment). The laser device achieves the purpose of processing the workpiece by emitting laser. Since the laser processing equipment does not directly contact the workpiece, it is not affected by mechanical movement and the surface of the workpiece is not easily deformed.

[0004] To protect the eyes of relevant personnel, laser devices are usually equipped with a hood to prevent laser leakage. However, while providing protection, the hood also blocks the heat dissipation airflow inside the hood, causing the heat dissipation airflow to converge inside the hood, resulting in the accumulation of smoke and dust generated by the workpiece when the laser acts on the workpiece, affecting the processing efficiency of the laser device. Utility Model Content

[0005] In order to solve the aforementioned problems, the present application provides a laser device and laser processing equipment that can improve processing efficiency.

[0006] In the first aspect, an embodiment of the present application provides a laser device, comprising a laser emitting component and a light shield arranged at one end of the laser emitting component, wherein the laser emitting component comprises a heat dissipation fan and a laser component arranged in a stacked manner; a light outlet is provided on the end of the light shield facing away from the laser emitting component, the laser emitted from the laser component enters the interior of the light shield and is emitted from the light outlet, and the outer surface of the light shield is used to guide the heat dissipation airflow output from the heat dissipation fan outside the light shield.

[0007] The arrangement direction of the light shield and the laser emitting component is a first direction, the light shield includes a first end and a second end arranged opposite to each other along the first direction, the first end is arranged at an end of the light shield close to the laser emitting component, the maximum dimension of the first end in the second direction is smaller than the maximum dimension of the second end in the second direction, and the second direction is different from the first direction.

[0008] In a possible implementation manner, a maximum dimension of the first end in a third direction is smaller than a maximum dimension of the second end in the third direction, and the third direction is different from the second direction, and the third direction is different from the first direction.

[0009] In one possible implementation, the outer surface of the light shield includes a first guide surface, a second guide surface, a third guide surface and a fourth guide surface, the first guide surface and the second guide surface are arranged opposite to each other along the second direction, the third guide surface and the fourth guide surface are arranged opposite to each other along the third direction, and / or at least one of the first guide surface, the second guide surface, the third guide surface and the fourth guide surface is a curved surface.

[0010] In a possible implementation, the light shield is provided with a first channel, the first channel passes through an end surface of the light shield close to one end of the laser emitting component and is connected to the light outlet.

[0011] The laser component comprises a body and a laser emitting portion protruding from one end of the body facing the light shield, and the laser emitting portion is accommodated in the first channel.

[0012] In a possible implementation, the light shield also includes a second channel, the second channel includes an inlet and a connecting port, the inlet passes through the end surface of the light shield at one end close to the laser emitting component, and the connecting port is connected to the first channel; the auxiliary heat dissipation airflow flowing in from the inlet enters the first channel through the second channel and flows out from the light outlet.

[0013] In a possible implementation, the laser emitting component further includes an air guide tube, one end of which is passed through the inlet, and the air guide tube is used to transport auxiliary heat dissipation airflow.

[0014] In one possible implementation, the light shield includes a shield body and a cover body, one end of the shield body is connected to the laser emitting component, the cover body is connected to an end of the shield body away from the laser emitting component, and the light outlet is arranged on at least one of the shield body and the cover body.

[0015] In a possible implementation, the light shield further includes a first magnetic component and a second magnetic component, the first magnetic component is disposed on the cover body, the second magnetic component is disposed on the cover body, and the first magnetic component and the second magnetic component are magnetically attracted to each other.

[0016] In a second aspect, an embodiment of the present application further provides a laser processing device, the laser processing device comprising a laser device and a supporting device according to the first aspect, wherein the laser device is disposed on the supporting device.

[0017] The laser device and laser processing equipment provided by the present application, since the outer surface of the light shield is used to guide the heat dissipation airflow output from the heat dissipation fan, that is, the heat dissipation airflow is not located inside the light shield, so the heat dissipation airflow will not flow and swirl in the light shield, thereby preventing the smoke and dust attached to the swirling airflow from contacting the laser components, reducing the possibility of the smoke and dust generated by the workpiece when the laser acts on the workpiece accumulating on the laser components, thereby improving the processing efficiency of the laser device and also helping to extend the life of the laser components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional assembly diagram of a laser processing device provided in one embodiment of the present application.

[0020] Figure 2 yes Figure 1 An exploded schematic diagram of a laser device of a laser processing device is shown.

[0021] Figure 3 yes Figure 2 A further exploded schematic diagram of the laser device is shown.

[0022] Figure 4 It is a three-dimensional schematic diagram of the shell.

[0023] Figure 5 It is a three-dimensional schematic diagram of a cooling fan.

[0024] Figure 6 It is a stereoscopic schematic diagram of the laser device from another perspective.

[0025] Figure 7 is along Figure 6 A cross-sectional view along line D1-D1 is shown.

[0026] Figure 8 It is a three-dimensional schematic diagram of the air deflector.

[0027] Fig. 9 This is a top view of the laser device with the cover and cooling fan removed.

[0028] Fig.10 It is a three-dimensional schematic diagram of the heat dissipation structure.

[0029] Fig.11 It is a three-dimensional schematic diagram of the cover.

[0030] Fig.12 is along Figure 6 A cross-sectional view along line D2-D2 is shown.

[0031] Fig.13 is a top view of the laser device with the cover removed.

[0032] Fig.14 is along Fig.13 A cross-sectional view along line AA is shown.

[0033] Fig.15 is along Fig.13 A cross-sectional view along line BB is shown.

[0034] Fig.16 is along Fig.13 A cross-sectional view along line CC is shown.

[0035] Fig.17 It is a three-dimensional assembly diagram of the lens hood.

[0036] Fig.18 is along Fig.17 A three-dimensional cross-sectional view of line II.

[0037] Fig.19 yes Fig.17 A schematic exploded perspective view of the sunshade. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] See also Figure 1 In one embodiment of the present application, a laser processing device 100 is provided for processing a workpiece (not shown). In this embodiment, the laser processing device 100 is a desktop laser engraving and cutting machine. It is understood that the present application does not limit the laser processing device 100 to a laser engraving and cutting machine, and it may also be other laser processing devices.

[0040] The laser processing device 100 includes a support device 101 and a laser device 103. The laser device 103 is movably disposed on the support device 101. It is understood that the present application does not limit the structure of the laser processing device 100. For example, the laser processing device 100 may also include a stage for carrying a workpiece, etc.

[0041] The laser device 103 includes a laser emitting component 10 and a light shield 30 disposed at one end of the laser emitting component 10. The laser emitting component 10 is used to emit laser light to process a workpiece. The light shield 30 is used to prevent the laser light from leaking out to protect the eyes of relevant personnel.

[0042] See also Figure 2 and Figure 3 The laser emitting component 10 includes a housing 11, a heat dissipation fan 12, a shroud 14, a laser component 15, a cover 16, an air duct 17 and a fastener 18. The laser component 15, the heat dissipation fan 12 and the shroud 14 are all accommodated in the housing 11. The cover 16, the heat dissipation fan 12, the shroud 14 and the laser component 15 are stacked in sequence along a first direction. The laser component 15 is connected to the light shield 30 for emitting laser light. The heat dissipation fan 12 is used to dissipate heat for the laser component 15. The shroud 14 is located between the heat dissipation fan 12 and the laser component 15 in the first direction, and is used to guide the heat dissipation airflow output by the heat dissipation fan 12 to the laser component 15. The cover 16 is used to close the top of the housing 11. The air duct 17 is provided through the housing 11, the cover 16 and the heat dissipation fan 12, and the air duct 17 is used to be connected to an air pump (not shown) to deliver auxiliary heat dissipation airflow to the light shield 30 to assist in heat dissipation of the laser component 15. The fastener 18 penetrates the housing 11 , the cover plate 16 , and the cooling fan 12 to connect the housing 11 , the cover plate 16 , and the cooling fan 12 together.

[0043] See also Figure 4The housing 11 includes a main housing 112, a first support portion 114 and a second support portion 116. The first support portion 114 is convexly disposed on the inner surface of the main housing 112, and the second support portion 116 is convexly disposed on the inner surface of the main housing 112. The first support portion 114 is provided with a first assembly hole 1142 for passing the air duct 17. The second support portion 116 is provided with a second assembly hole 1162 for passing the fastener 18. It can be understood that the first support portion 114 and the second support portion 116 can be omitted, and the first assembly hole 1142 and the second assembly hole 1162 are directly disposed on the main housing 112 of the housing 11. In this embodiment, the main housing 112 is substantially square in a cross section perpendicular to the first direction, that is, the main housing 112 includes four corners, the number of the first assembly hole 1142 is one, the number of the second assembly holes 1162 is three, the first assembly hole 1142 is located at one of the corners of the main housing 112, and the three second assembly holes 1162 are respectively located at the other three corners. In the present application, the length of the first assembly hole 1142 extending along the first direction is greater than the length of the second assembly hole 1162 along the first direction, so as to improve the installation stability of the air guide tube 17 in the first assembly hole 1142. It can be understood that the present application does not limit the length of the first assembly hole 1142 extending along the first direction to be greater than the length of the second assembly hole 1162 along the first direction. The present application does not limit the shape of the main shell 112, the shape and structure of the main shell 112, the number of the first assembly holes 1142, and the number of the second assembly holes 1162.

[0044] See also Figure 5 The cooling fan 12 includes a frame 122 and a fan body 124. The frame 122 is provided with a first mounting hole 1222 and a second mounting hole 1224. The first mounting hole 1222 is aligned with the first assembly hole 1142 along the first direction, and the first mounting hole 1222 is used to pass the air duct 17. The second mounting hole 1224 is aligned with the second assembly hole 1162 along the first direction, and the second mounting hole 1224 is used to pass the fastener 18. In this embodiment, the number of the first mounting holes 1222 corresponds to the number of the first assembly holes 1142, the number of the second mounting holes 1224 corresponds to the number of the second assembly holes 1162, and the number of the fasteners 18 corresponds to the number of the second mounting holes 1224. Please refer to Figure 6 and Figure 7 Each fastener 18 is inserted into a corresponding second mounting hole 1224 and a corresponding second assembly hole 1162 .

[0045] The first assembly hole 1142 of the housing 11 originally used for setting the fastener and the first mounting hole 1222 of the cooling fan 12 originally used for setting the fastener are used to pass the air duct 17, that is, to set the built-in air duct. Since no other holes or grooves are added to set the built-in air duct, the volume of the laser device 103 will not be increased. Since the air duct 17 is not built into the laser device 103, that is, the air duct 17 is hidden and not placed outside the laser device 103, it is beneficial to improve the appearance and decorativeness of the laser device 103.

[0046] The fan body 124 is mounted on the frame body 122 and can rotate relative to the frame body 122. The fan body 124 includes a center column 1242 and a plurality of fan blades 1244 arranged along the circumference of the center column 1242. The air inlet of the heat dissipation fan 12 is arranged toward the cover plate 16, and the air outlet of the heat dissipation fan 12 is arranged away from the cover plate 16.

[0047] See also Figure 8 , the air guide cover 14 includes a connector 142 and an air guide portion 144 which are connected. The connector 142 is connected to the middle column 1242 of the heat dissipation fan 12. The air guide portion 144 is connected to the laser component 15. In a second direction different from the first direction, the size of the end of the air guide portion 144 connected to the laser component 15 is larger than the size of the end of the air guide portion 144 connected to the connector 142, so that the air guide cover 14 is roughly trumpet-shaped to guide the heat dissipation airflow output by the heat dissipation fan 12 to the laser component 15. The projection of the connector 142 on the middle column 1242 along the first direction is located inside the middle column 1242 to reduce the resistance of the connector 142 to the heat dissipation airflow and reduce the backflow of the heat dissipation airflow, so that the heat dissipation airflow output by the heat dissipation fan 12 is blown to the laser component 15 as much as possible. Since the resistance of the connector 142 to the heat dissipation airflow is reduced, the noise of the heat dissipation fan 12 during heat dissipation is reduced. It can be understood that the air guide cover 14 can be omitted.

[0048] The air guide portion 144 includes a first portion 1441, a second portion 1442, a third portion 1443 and a fourth portion 1444. The first portion 1441 and the second portion 1442 are arranged opposite to each other along the second direction. The third portion 1443 is connected between the first portion 1441 and the second portion 1442 in the circumferential direction of the air guide portion 144. The fourth portion 1444 is connected between the first portion 1441 and the second portion 1442 in the circumferential direction of the air guide portion 144. The third portion 1443 and the fourth portion 1444 are arranged opposite to each other in the third direction. The air guide portion 144 is divided into four portions, which is conducive to outputting the heat dissipation airflow output by the heat dissipation fan 12 to the laser component 15 through the first portion 1441, the second portion 1442, the third portion 1443 and the fourth portion 1444, i.e., along the four sides of the air guide portion 144.

[0049] The air guide cover 14 further includes a plurality of spacers 146 protruding from the outer surface of the air guide portion 144 away from the connector 142. Each two adjacent spacers 146 form a flow diversion channel 1460 for diverting the heat dissipation airflow output by the heat dissipation fan 12. The first portion 1441, the second portion 1442, and the third portion 1443 are all provided with spacers 146.

[0050] The air deflector 14 further includes a reinforcement 148, and the end of the plurality of spacers 146 on the third portion 1443 away from the air deflector 144 is connected to the reinforcement 148. The reinforcement 148 is used to strengthen the strength of the plurality of spacers 146 on the third portion 1443, reduce the possibility of deformation of the plurality of spacers 146 on the third portion 1443, and also reduce the difficulty in the manufacturing process of the air deflector 14. It can be understood that the end of the plurality of spacers 146 of at least one of the first portion 1441, the second portion 1442, and the third portion 1443 away from the air deflector 144 is connected by the reinforcement 148.

[0051] See also Fig. 9 The area where the air outlet of the cooling fan 12 is aligned with the air guide portion 144 is roughly the shaded filled portion 120 . It can be seen that the air guide portion 144 can cover most of the air outlet area of ​​the cooling fan 12 , thereby improving the air outlet efficiency of the cooling fan 12 .

[0052] Please refer again Figure 3 The laser component 15 includes a body 151, a laser emitting portion 153 and a heat dissipation structure 155. A laser light source is provided on the body 151. The laser emitting portion 153 is convexly arranged at one end of the body 151 facing the light shield 30, and the laser emitting portion 153 is connected to the light shield 30. A laser outlet 1533 is provided on the laser emitting portion 153 for emitting the laser light generated by the laser light source. The heat dissipation structure 155 is sleeved on the body 151. The heat dissipation structure 155 is arranged along the circumference of the body 151. The air guide 14 is used to guide the heat dissipation airflow output by the heat dissipation fan 12 to the heat dissipation structure 155. By guiding the heat dissipation airflow output by the heat dissipation fan 12 to the heat dissipation structure 155 through the air guide 14, the obstruction of the cross-sectional structure of the laser component 15 on the heat dissipation airflow can be reduced, and the possibility of the heat dissipation airflow swirling can be reduced. While improving the heat dissipation efficiency of the laser device 103, the noise of the heat dissipation fan 12 is also reduced.

[0053] A plurality of flow channels 1550 are provided on the heat dissipation structure 155 , and each flow channel 1550 is connected to a corresponding flow diversion channel 1460 for conveying heat dissipation airflow to dissipate heat when the laser component 15 emits laser.

[0054] See also Fig.10, the heat dissipation structure 155 includes a first heat dissipation division 1551, a second heat dissipation division 1552, a third heat dissipation division 1553 and a mounting portion 1554. The first heat dissipation division 1551 and the second heat dissipation division 1552 are arranged opposite to each other along the second direction. The third heat dissipation division 1553 is connected between the first heat dissipation division 1551 and the second heat dissipation division 1552 in the circumferential direction of the heat dissipation structure 155. The mounting portion 1554 is connected between the first heat dissipation division 1551 and the second heat dissipation division 1552 in the circumferential direction of the heat dissipation structure 155. The mounting portion 1554 and the third heat dissipation division 1553 are arranged opposite to each other along the third direction. The first heat dissipation division 1551, the second heat dissipation division 1552 and the third heat dissipation division 1553 are all provided with a flow channel 1550. It can be understood that the flow channel 1550 can also be provided on the mounting portion 1554 to increase the setting area of ​​the flow channel 1550. It can be understood that the mounting portion 1554 can be omitted. It can be understood that one or two of the first heat dissipation division 1551 , the second heat dissipation division 1552 , and the third heat dissipation division 1553 can be omitted from the heat dissipation structure 155 , and the heat dissipation structure 155 can also include more heat dissipation divisions.

[0055] The heat dissipation structure 155 is disposed circumferentially around the body 151 , which is beneficial to increasing the arrangement area of ​​the flow channel 1550 and improving the heat dissipation efficiency of the laser device 103 .

[0056] See also Fig.11 The cover plate 16 includes an air inlet hole 161, a first mounting hole 163 and a second mounting hole 165. The cooling fan 12 introduces cooling airflow through the air inlet hole 161. The first mounting hole 163, the first mounting hole 1222 and the first assembly hole 1142 are arranged in sequence along the first direction, and the second mounting hole 165, the second mounting hole 1224 and the second assembly hole 1162 are arranged in sequence along the first direction. Please refer to Figure 7 The air guide tube 17 is sequentially inserted into the first mounting hole 163 , the first mounting hole 1222 , and the first assembly hole 1142 , and the fastener 18 is sequentially inserted into the second mounting hole 165 , the second mounting hole 1224 , and the second assembly hole 1162 .

[0057] Please refer again Figure 2 and Figure 3The air duct 17 includes a first tube body 171, a second tube body 173, a first joint 175 and a second joint 177. The first tube body 171 is connected and communicated with the second tube body 173. The first tube body 171 is a straight tube, and the first tube body 171 is sequentially penetrated through the first installation hole 163, the first mounting hole 1222, and the first assembly hole 1142. The second tube body 173 is a curved tube, which is used to change the extension direction of the air duct 17. The first joint 175 is connected to one end of the first tube body 171 away from the second tube body 173 and is located outside the housing 11, and is used to connect with the air pump. The second joint 177 is connected to one end of the second tube body 173 away from the first tube body 171. The second joint 177 is used to connect with the light shield 30. It can be understood that in some embodiments of the present application, the air duct 17 can be an external air duct, that is, the air duct 17 may not be inserted into the cover plate 16, the cooling fan 12 and the shell 11, for example, the air duct 17 is directly bonded to the outside of the shell 11.

[0058] See also Fig.12 The end of the light shield 30 away from the laser emitting member 10 is provided with a light outlet 331. The laser emitted from the laser outlet 1533 of the laser emitting portion 153 enters the interior of the light shield 30 and is emitted from the light outlet 331. Fig.13 , Fig.14 , Fig.15 and Fig.16 The outer surface of the light shield 30 is used to guide the heat dissipation airflow output from the flow channel 1550 of the laser emitting component 10 outside the light shield 30. The heat dissipation airflow blown by the heat dissipation fan 12 passes through the first heat dissipation sub-portion 1551 (such as Fig.14 As shown), the second heat dissipation subdivision 1552 (as Fig.15 ) and the third heat dissipation subdivision 1553 (as shown Fig.16 The diverted flow of the flow channel 1550 on the light shield 30 reaches the outer surface of the light shield 30.

[0059] Since the outer surface of the light shield 30 guides the heat dissipation airflow output from the flow channel 1550 of the laser emitting component 10, that is, the heat dissipation airflow is not located inside the light shield 30, the heat dissipation airflow will not flow or swirl in the light shield 30, thereby preventing the smoke and dust included in the swirling airflow from contacting the laser component 15, reducing the possibility of the smoke and dust generated by the workpiece when the laser acts on the workpiece accumulating on the laser component 15, thereby improving the processing efficiency of the laser device 103 and also helping to extend the life of the laser component 15.

[0060] In this implementation, please refer to Fig.17 , Fig.18The light shield 30 includes a cover body 31 and a cover body 33. One end of the cover body 31 is connected to the laser emitting portion 153. The cover body 33 is detachably connected to the end of the cover body 31 away from the laser emitting component 10. The light outlet 331 is provided on the cover body 33. The cover body 31 and the cover body 33 can enclose a relatively closed space, thereby preventing the laser from overflowing. In the present embodiment, the cover body 33 is a glass plate to facilitate the cleaning of dirt such as smoke. It can be understood that the present application does not limit the material of the cover body 33. For example, the material of the cover body 33 can also be plastic or other materials.

[0061] The cover body 31 is roughly trumpet-shaped. The maximum dimension of the end of the cover body 31 close to the laser emitting component 10 in the second direction is smaller than the maximum dimension of the end of the light shielding cover 30 away from the laser emitting component 10 in the second direction. The maximum dimension of the end of the cover body 31 close to the laser emitting component 10 in the third direction is smaller than the maximum dimension of the end of the light shielding cover 30 away from the laser emitting component 10 in the second direction.

[0062] The outer surface of the cover body 31 includes a first guide surface 311, a second guide surface 312, a third guide surface 313 and a fourth guide surface 314. The first guide surface 311 and the second guide surface 312 are arranged opposite to each other along the second direction, and the third guide surface 313 and the fourth guide surface 314 are arranged opposite to each other along the third direction. The heat dissipation airflow output by the flow channel 1550 of the first heat dissipation division 1551 can be blown toward the first guide surface 311. The heat dissipation airflow output by the flow channel 1550 of the second heat dissipation division 1552 can be blown toward the second guide surface 312. The heat dissipation airflow output by the flow channel 1550 of the third heat dissipation division 1553 can be blown toward the third guide surface 313. The heat dissipation airflow output from the fourth part 1443 can be blown toward the fourth guide surface 314.

[0063] The first guide surface 311 , the second guide surface 312 , the third guide surface 313 and the fourth guide surface 314 all include arc surfaces to reduce the resistance of the heat dissipation airflow when flowing through the outer surface of the cover body 31 , thereby improving the heat dissipation efficiency of the laser device 103 .

[0064] It can be understood that at least one of the first guide surface 311 , the second guide surface 312 , the third guide surface 313 and the fourth guide surface 314 is a curved surface.

[0065] The cover body 31 is further provided with a first channel 315, one end of which passes through the end surface of the cover body 31 near the laser emitting member 10. The first channel 315 is used to accommodate the laser emitting portion 153. The laser emitting portion 153 is accommodated in the first channel 315. In this embodiment, the inner surface of the cover body 31 is provided with a first convex portion 3150, and the first channel 315 is provided on the first convex portion 3150 and passes through the first convex portion 3150.

[0066] Please refer to Fig.19, a first connection hole 316 is provided on the outer surface of the cover body 31. The first connection hole 316 can penetrate the inner wall of the first channel 315. The light shield 30 also includes a first connection member 35, which is passed through the first connection hole 316 and connected to the laser emitting portion 153, thereby connecting the cover body 31 and the laser emitting portion 153. In this embodiment, the first connection member 35 is passed through the first connection hole 316 and abuts against the laser emitting portion 153, thereby pressing the laser emitting portion 153 against the inner wall of the first channel 315.

[0067] Please refer again Fig.18 The cover body 31 is also provided with a second channel 317, which includes an inlet 3172 and a connecting port 3174. The inlet 3172 penetrates the end surface of the light shield 30 close to the laser emitting component 10, and the connecting port 3174 is connected to the first channel 315. The second connector 177 is received in the inlet 3172 of the second channel 317 for conveying auxiliary heat dissipation airflow. Please refer again Fig.12 The auxiliary heat dissipation airflow flowing in from the inlet 3172 enters the first channel 315 through the second channel 317 and flows out from the light outlet 331. In this embodiment, the inner surface of the cover body 31 is provided with a second convex portion 3170 (such as Fig.18 As shown), the second channel 317 is disposed on the second protrusion 3170.

[0068] Please refer again Fig.19 , a second connection hole 318 is provided on the outer surface of the cover body 31. The second connection hole 318 passes through the inner wall of the second channel 317. The light shield 30 further includes a second connection member 36, which is passed through the second connection hole 318 and connected to the air duct 17, thereby connecting the cover body 31 to the air duct 17. In this embodiment, the second connection member 36 is passed through the second connection hole 318 and abuts against the air duct 17, thereby pressing the air duct 17 against the inner wall of the second channel 317.

[0069] The light shield 30 further includes a first magnetic member 37 and a second magnetic member 38. The first magnetic member 37 is disposed on the shield body 31, and the second magnetic member 38 is disposed on the cover body 33. The first magnetic member 37 and the second magnetic member 38 are magnetically attracted to each other, thereby detachably connecting the shield body 31 and the cover body 33. The shield body 31 and the cover body 33 are detachably connected together by magnetic attraction, which facilitates the removal of the cover body 33 from the shield body 31 for cleaning, and also facilitates the assembly of the cover body 33 on the shield body 31.

[0070] In this embodiment, a protrusion 319 is provided on the inner surface of the cover body 31 , and the protrusion 319 extends toward the lid body 33 . The first magnetic member 37 is provided on the protrusion 319 , and the second magnetic member 38 is provided on a side of the lid body 33 facing the cover body 31 .

[0071] It is understandable that the present application does not limit the connection method between the cover body 31 and the cover body 33. The cover body 31 and the cover body 33 can be connected by means of snap connection, bonding, etc.

[0072] It can be understood that in other embodiments of the present application, the housing 11, the cover 16, and the air guide cover 14 can be omitted, and the cooling fan 12 and the laser component 15 can be installed together.

[0073] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A laser device, characterized in that: It comprises a laser emitting component and a light shield arranged at one end of the laser emitting component. The laser emitting component includes a heat dissipation fan and a laser component which are stacked; The end of the light shield away from the laser emitting component is provided with a light outlet, and the laser emitted from the laser component enters the interior of the light shield and is emitted from the light outlet. The outer surface of the light shield is used to guide the heat dissipation airflow output from the heat dissipation fan outside the light shield.

2. The laser device according to claim 1, characterized in that The arrangement direction of the light shield and the laser emitting component is a first direction, the light shield includes a first end and a second end arranged opposite to each other along the first direction, the first end is arranged at an end of the light shield close to the laser emitting component, the maximum dimension of the first end in the second direction is smaller than the maximum dimension of the second end in the second direction, and the second direction is different from the first direction.

3. The laser device according to claim 2, characterized in that: A maximum dimension of the first end in a third direction is smaller than a maximum dimension of the second end in a third direction, the third direction is different from the second direction, and the third direction is different from the first direction.

4. The laser device according to claim 2, characterized in that The outer surface of the light shield includes a first guide surface, a second guide surface, a third guide surface and a fourth guide surface, the first guide surface and the second guide surface are arranged opposite to each other along the second direction, the third guide surface and the fourth guide surface are arranged opposite to each other along a third direction, the third direction is different from the second direction, the third direction is different from the first direction, and / or at least one of the first guide surface, the second guide surface, the third guide surface and the fourth guide surface is a curved surface.

5. The laser device according to claim 1, characterized in that The light shield is provided with a first channel, the first channel passes through the end surface of the light shield close to the laser emitting component and is connected with the light outlet. The laser component comprises a body and a laser emitting portion protruding from one end of the body facing the light shield, and the laser emitting portion is accommodated in the first channel.

6. The laser device according to claim 5, characterized in that The light shield further comprises a second channel, the second channel comprises an inlet and a communication port, the inlet passes through an end surface of the light shield close to the laser emitting component, and the communication port is communicated with the first channel; The auxiliary heat dissipation airflow flowing in from the inlet port enters the first channel through the second channel and flows out from the light outlet port.

7. The laser device according to claim 6, characterized in that The laser emitting component further comprises an air guide tube, one end of which is passed through the inlet, and the air guide tube is used for conveying auxiliary heat dissipation airflow.

8. The laser device according to claim 1, characterized in that The light shield comprises a shield body and a cover body, one end of the shield body is connected to the laser emitting component, the cover body is connected to an end of the shield body away from the laser emitting component, and the light outlet is arranged on at least one of the shield body and the cover body.

9. The laser device according to claim 8, characterized in that The light shield further includes a first magnetic component and a second magnetic component, wherein the first magnetic component is disposed on the shield body, and the second magnetic component is disposed on the cover body, and the first magnetic component and the second magnetic component are magnetically attracted to each other.

10. A laser processing device, characterized in that: The laser processing equipment comprises a laser device according to any one of claims 1 to 9 and a supporting device, wherein the laser device is arranged on the supporting device.

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