Laser processing head and laser processing equipment

Abstract

The utility model is applicable to the technical field of laser equipment, and provides a laser processing head and laser processing equipment, the laser processing head comprises a first fixing assembly, a control unit, a second fixing assembly and a processing nozzle; a first light through hole is formed in the first fixing assembly, and the control unit is arranged in the first fixing assembly; the second fixing assembly is arranged on the first fixing assembly, and a second light through hole and a second water cooling channel are formed in the second fixing assembly; the second water cooling channel surrounds the second light through hole; the machining nozzle is arranged at the end, away from the first fixing assembly, of the second fixing assembly, the machining nozzle is electrically connected with the control unit, and a third light through hole is formed in the machining nozzle; the first light-transmitting hole, the second light-transmitting hole and the third light-transmitting hole are communicated in sequence, and the center lines thereof coincide with each other. The machining nozzle is directly arranged on the second fixing assembly, so that the cooling effect of cooling water in the second water cooling channel on the machining nozzle can be improved, and the detection precision of the distance between the machining nozzle and the workpiece is improved.

Description

Technical Field

[0001] The present application relates to the technical field of laser equipment, and in particular to a laser processing head and laser processing equipment. Background Art

[0002] When the laser processing equipment cuts the workpiece, the height of the workpiece surface is inconsistent, and the workpiece itself may also be tilted. Therefore, the laser processing head of the laser processing equipment needs to rise and fall with the rise and fall of the workpiece surface, that is, to keep the distance between the laser processing head and the workpiece surface as consistent as possible, so as to avoid collision between the laser processing head and the workpiece. In order to control the distance between the laser processing head and the workpiece surface, a capacitive sensor is usually set on the laser processing head to detect the distance between the laser processing head and the workpiece surface.

[0003] When the laser processing head emits laser to process the workpiece, the molten material at the cutting position on the surface of the workpiece and the laser itself will generate radiation, causing the temperature of the laser processing head to rise. After the temperature of the laser processing head rises, the temperature will affect the detection accuracy of the capacitive sensor, resulting in the inability to accurately control the distance between the laser processing head and the workpiece.

[0004] In order to improve the detection accuracy of the capacitive sensor, an air cooling channel is usually set on the laser processing head to cool the laser processing head, thereby improving the detection accuracy of the capacitive sensor. However, the heat taken away by the air cooling channel is limited, and the cooling effect on the laser processing head is not obvious, so the detection accuracy of the capacitive sensor is still low. Utility Model Content

[0005] The embodiments of the present application provide a laser processing head and a laser processing device, which can improve the detection accuracy of a capacitive sensor on the laser processing head.

[0006] In a first aspect, an embodiment of the present application provides a laser processing head, the laser processing head comprising:

[0007] A first fixing component, wherein a first light-through hole is provided in the first fixing component;

[0008] a control unit, wherein the control unit is disposed in the first fixing component;

[0009] a second fixing component, the second fixing component being arranged on the first fixing component, a second light-through hole and a second water-cooling channel being arranged in the second fixing component; the second light-through hole being in communication with the first light-through hole, a center line of the second light-through hole being coincident with a center line of the first light-through hole, and the second water-cooling channel surrounding the second light-through hole;

[0010] A processing nozzle, wherein the processing nozzle is arranged at one end of the second fixing component away from the first fixing component, the processing nozzle is electrically connected to the control unit, and a third light-through hole is arranged in the processing nozzle; the third light-through hole is connected to the second light-through hole, and the center line of the third light-through hole coincides with the center line of the second light-through hole.

[0011] In some possible implementations of the first aspect, a first water cooling channel is further disposed in the first fixing assembly, and the first water cooling channel surrounds the first light passing hole.

[0012] In some possible implementations of the first aspect, a liquid inlet and a liquid outlet are provided on the first fixing component, the liquid inlet is connected to the first water cooling channel, the first water cooling channel is connected to the second water cooling channel, and the second water cooling channel is connected to the liquid outlet.

[0013] In some possible implementations of the first aspect, the first fixing component includes:

[0014] A fixing unit, wherein the liquid inlet, the liquid outlet and the control unit are all arranged on the fixing unit, and the fixing unit is provided with an annular groove, a first through hole, a first longitudinal channel and a second longitudinal channel, wherein two ends of the first longitudinal channel are respectively communicated with the liquid inlet and the annular groove, and one end of the second longitudinal channel is communicated with the liquid outlet;

[0015] A fixing member, wherein the fixing member is sleeved on the fixing unit, and the fixing member covers the annular groove to form the first water-cooling channel; the fixing member is provided with a second through hole, a third longitudinal channel and a fourth longitudinal channel, the second through hole is connected with the first through hole to form the first light-transmitting hole, the two ends of the third longitudinal channel are respectively connected with the annular groove and the second water-cooling channel, and the two ends of the fourth longitudinal channel are respectively connected with the second water-cooling channel and the other end of the second longitudinal channel.

[0016] In some possible implementations of the first aspect, the fixing unit includes:

[0017] A first fixed seat, the liquid inlet and the liquid outlet are both arranged on the end surface of the first fixed seat, and the first fixed seat is provided with a first hole section, a first channel and a second channel;

[0018] A second fixing seat, the second fixing seat is arranged at one end of the first fixing seat away from the liquid inlet, the second fixing seat is provided with a second hole section, a mounting groove, the annular groove, a third channel and a fourth channel, the notch of the mounting groove faces the first fixing seat, the notch of the annular groove faces the direction away from the first through hole, and the control unit is arranged in the mounting groove; the fixing piece is sleeved on the second fixing seat, the second hole section is connected with the first hole section to form the first through hole, the third channel is connected with the first channel to form the first longitudinal channel, and the fourth channel is connected with the second channel to form the second longitudinal channel.

[0019] In some possible implementations of the first aspect, the second fixing component includes:

[0020] a third fixing seat, the third fixing seat being arranged on the first fixing assembly, and the second light-through hole being arranged in the third fixing seat;

[0021] A fourth fixing seat, wherein the fourth fixing seat is sleeved on the third fixing seat, the second water-cooling channel is formed between the fourth fixing seat and the third fixing seat, and the processing nozzle is arranged on the third fixing seat.

[0022] In some possible implementations of the first aspect, an air cooling groove is provided in the third fixing seat, the air cooling groove surrounds the second light through hole, and a notch of the air cooling groove faces the processing nozzle.

[0023] In some possible implementations of the first aspect, the laser processing head further includes:

[0024] An insulating seat, one end of which is arranged on the first fixing component, and the second fixing component is arranged on the end of the insulating seat away from the first fixing component; a fourth light-through hole is arranged in the insulating seat, and both ends of the fourth light-through hole are respectively connected with the second light-through hole and the third light-through hole.

[0025] In some possible implementations of the first aspect, the laser processing head further includes:

[0026] The locking ring has a boss on the peripheral side of the insulating seat, and the boss extends into the first fixing component. The locking ring is sleeved on the first fixing component and the insulating seat, and the locking ring can be used to press the bottom of the boss.

[0027] In a second aspect, an embodiment of the present application provides a laser processing device, which includes a laser processing head as described in any one of the above technical solutions.

[0028] In the laser processing head and laser processing equipment provided by the embodiments of the present application, the first light hole, the second light hole and the third light hole are connected in sequence, and the center lines of the first light hole, the second light hole and the third light hole coincide, so that the laser beam can pass through, thereby being used to process the workpiece; the first fixed component is used to install the control unit, and the control unit is electrically connected to the processing nozzle to obtain the voltage of the processing nozzle through the control unit, so as to calculate and adjust the distance between the processing nozzle and the workpiece; a second water cooling channel is provided in the second fixed component, and the second water cooling channel is used to circulate cooling water, so that the cooling water can take away the heat of the second fixed component, thereby reducing the second The temperature of the fixed component; the processing nozzle is arranged on the second fixed component. When the temperature of the processing nozzle rises, the processing nozzle transfers heat to the second fixed component by heat conduction, and then reduces the temperature of the second fixed component by the circulation of cooling water in the second water-cooling channel, thereby realizing cooling of the processing nozzle; the second water-cooling channel surrounds the second light hole to increase the length of the second water-cooling channel and improve the cooling effect on the second fixed component; since the processing nozzle is directly arranged on the second fixed component, the cooling effect of the cooling water in the second water-cooling channel on the processing nozzle can be improved, thereby improving the detection accuracy of the distance between the processing nozzle and the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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 the structures shown in these drawings without paying any creative work.

[0030] Figure 1 This is a schematic structural diagram of an embodiment of a laser processing head of the present application;

[0031] Figure 2 A cross-sectional view of an embodiment of a laser processing head of the present application;

[0032] Figure 3 This is a cross-sectional view of another embodiment of the laser processing head of the present application.

[0033] Description of Figure Numbers:

[0034] 1. first fixing assembly; 11. fixing unit; 111. first fixing seat; 1111. liquid inlet; 1112. liquid outlet; 1113. first hole section; 1114. air inlet; 112. second fixing seat; 1121. second hole section; 1122. mounting groove; 1123. annular groove; 113. first through hole; 12. fixing member; 121. second through hole; 13. first light hole; 14. first water cooling channel; 15. first air cooling channel;

[0035] 2. Control unit; 3. Second fixing assembly; 31. Third fixing seat; 311. Second light hole; 312. Air cooling groove; 32. Fourth fixing seat; 33. Second water cooling channel;

[0036] 4. Processing nozzle; 41. Third light-through hole; 5. Insulating seat; 51. Fourth light-through hole; 52. Boss; 53. Second air-cooling channel; 6. Locking ring.

[0037] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. 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] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] It should be understood that the term “and / or” used in the specification of this application and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] The embodiments of the present application provide a laser processing head and a laser processing device, which are used to solve the technical problem of low detection accuracy of a capacitive sensor.

[0044] In the embodiments of the present application, Figure 1 and Figure 2 As shown, the laser processing head includes a first fixing component 1, a control unit 2, a second fixing component 3 and a processing nozzle 4. A first light through hole 13 is provided in the first fixing component 1, and the control unit 2 is provided in the first fixing component 1. The second fixing component 3 is provided in the first fixing component 1, and a second light through hole 311 and a second water cooling channel 33 are provided in the second fixing component 3. The second light through hole 311 is communicated with the first light through hole 13, the center line of the second light through hole 311 coincides with the center line of the first light through hole 13, and the second water cooling channel 33 surrounds the second light through hole 311. The processing nozzle 4 is provided at one end of the second fixing component 3 away from the first fixing component 1, the processing nozzle 4 is electrically connected to the control unit 2, and a third light through hole 41 is provided in the processing nozzle 4. The third light through hole 41 is communicated with the second light through hole 311, and the center line of the third light through hole 41 coincides with the center line of the second light through hole 311.

[0045] The first light hole 13, the second light hole 311 and the third light hole 41 are connected, and the center lines of the first light hole 13, the second light hole 311 and the third light hole 41 coincide with each other to allow the laser beam to pass through, so that the laser beam emitted from the third light hole 41 can process the workpiece.

[0046] The first fixing component 1 is used to install the control unit 2, and the second fixing component 3 is used to install the processing nozzle 4. When the laser beam passes through the third light hole 41, the temperature of the processing nozzle 4 will gradually increase. Since the processing nozzle 4 is directly arranged on the second fixing component 3, the processing nozzle 4 will transfer its own heat to the second fixing component 3 through heat conduction. A second water cooling channel 33 is arranged in the second fixing component 3. When cooling water flows in the second water cooling channel 33, the cooling water will take away the heat of the second fixing component 3 to improve the heat dissipation efficiency of the second fixing component 3, thereby indirectly improving the cooling effect of the processing nozzle 4.

[0047] The processing nozzle 4 is electrically connected to the control unit 2, so that when the processing nozzle 4 processes the workpiece above the workpiece, the voltage change of the processing nozzle 4 can be obtained by the control unit 2. The distance between the processing nozzle 4 and the workpiece is calculated according to the voltage of the processing nozzle 4, so as to adjust the distance between the processing nozzle 4 and the workpiece.

[0048] The first light hole 13, the second light hole 311 and the third light hole 41 of the embodiment of the present application are connected in sequence, and the center lines of the first light hole 13, the second light hole 311 and the third light hole 41 coincide with each other, so that the laser beam can pass through, thereby being used to process the workpiece; the first fixing component 1 is used to install the control unit 2, and the control unit 2 is electrically connected to the processing nozzle 4 to obtain the voltage of the processing nozzle 4 through the control unit 2, so as to calculate and adjust the distance between the processing nozzle 4 and the workpiece; the second fixing component 3 is provided with a second water cooling channel 33, and the second water cooling channel 33 is used for cooling water circulation, so that the cooling water takes away the heat of the second fixing component 3, thereby reducing the second fixing component 3 temperature; the processing nozzle 4 is arranged on the second fixed component 3. When the temperature of the processing nozzle 4 increases, the processing nozzle 4 transfers the heat to the second fixed component 3 by heat conduction, and then reduces the temperature of the second fixed component 3 by the circulation of cooling water in the second water cooling channel 33, thereby realizing cooling of the processing nozzle 4; the second water cooling channel 33 surrounds the second light hole 311 to increase the length of the second water cooling channel 33 and improve the cooling effect on the second fixed component 3; since the processing nozzle 4 is directly arranged on the second fixed component 3, the cooling effect of the cooling water in the second water cooling channel 33 on the processing nozzle 4 can be improved, thereby improving the detection accuracy of the distance between the processing nozzle 4 and the workpiece.

[0049] In one embodiment, if Figure 1 and Figure 2 As shown, a first water cooling channel 14 is further provided in the first fixed component 1, and the first water cooling channel 14 surrounds the first light-through hole 13. The first water cooling channel 14 is used for cooling water to flow, so that the cooling water takes away the heat of the first fixed component 1, thereby cooling the first fixed component 1. The heat generated by the control unit 2 can be transferred to the first fixed component 1 by heat conduction, so that the control unit 2 is indirectly cooled by the cooling water in the first water cooling channel 14. The first cooling channel surrounds the first light-through hole 13 to increase the length of the first water cooling channel 14 and improve the cooling effect on the first fixed component 1.

[0050] In one embodiment, if Figure 1 and Figure 2 As shown, the first fixing assembly 1 is provided with a liquid inlet 1111 and a liquid outlet 1112, the liquid inlet 1111 is communicated with the first water cooling channel 14, the first water cooling channel 14 is communicated with the second water cooling channel 33, and the second water cooling channel 33 is communicated with the liquid outlet 1112. The cooling water can be circulated in the first water cooling channel 14 and the second water cooling channel 33, and the number of the liquid inlet 1111 and the liquid outlet 1112 can be reduced.

[0051] In one embodiment, if Figure 1 and Figure 2As shown, the first fixing assembly 1 includes a fixing unit 11 and a fixing member 12. The liquid inlet 1111, the liquid outlet 1112 and the control unit 2 are all arranged on the fixing unit 11, and the fixing unit 11 is provided with an annular groove 1123, a first through hole 113, a first longitudinal channel and a second longitudinal channel. The two ends of the first longitudinal channel are respectively connected with the liquid inlet 1111 and the annular groove 1123, and one end of the second longitudinal channel is connected with the liquid outlet 1112. The fixing member 12 is sleeved on the fixing unit 11, and the fixing member 12 covers the annular groove 1123 to form a first water-cooling channel 14. The fixing member 12 is provided with a second through hole 121, a third longitudinal channel and a fourth longitudinal channel, and the second through hole 121 is connected with the first through hole 113 to form a first light hole 13. The two ends of the third longitudinal channel are respectively connected with the annular groove 1123 and the second water-cooling channel 33, and the two ends of the fourth longitudinal channel are respectively connected with the second water-cooling channel 33 and the other end of the second longitudinal channel.

[0052] The fixing member 12 is sleeved on the fixing unit 11, so that the fixing member 12 covers the annular groove 1123 to form the first water cooling channel 14, thereby facilitating the setting of the first water cooling channel 14. The first through hole 113 and the second through hole 121 are connected to form the first light hole 13 for the laser beam to pass through. The two ends of the first longitudinal channel are respectively connected to the liquid inlet 1111 and the annular groove 1123, and one end of the second longitudinal channel is connected to the liquid outlet 1112; the two ends of the third longitudinal channel are respectively connected to the annular groove 1123 and the second water cooling channel 33, and the two ends of the fourth longitudinal channel are respectively connected to the second water cooling channel 33 and the other end of the second longitudinal channel, so that the first water cooling channel 14 and the second water cooling channel 33 form a circulation passage.

[0053] In one embodiment, if Figure 1 and Figure 2 As shown, the fixing unit 11 includes a first fixing seat 111 and a second fixing seat 112. The liquid inlet 1111 and the liquid outlet 1112 are both arranged on the end surface of the first fixing seat 111, and the first fixing seat 111 is provided with a first hole section 1113, a first channel and a second channel. The second fixing seat 112 is arranged at the end of the first fixing seat 111 away from the liquid inlet 1111, and the second fixing seat 112 is provided with a second hole section 1121, a mounting groove 1122, an annular groove 1123, a third channel and a fourth channel. The notch of the mounting groove 1122 faces the first fixing seat 111, and the notch of the annular groove 1123 faces the direction away from the first through hole 113, and the control unit 2 is arranged in the mounting groove 1122. The fixing member 12 is sleeved on the second fixing seat 112, the second hole section 1121 is connected with the first hole section 1113 to form a first through hole 113, the third channel is connected with the first channel to form a first longitudinal channel, and the fourth channel is connected with the second channel to form a second longitudinal channel. The first fixing seat 111, the second fixing seat 112 and the fixing member 12 can be connected by screws.

[0054] The mounting groove 1122 is used to mount the control unit 2. The notch of the mounting groove 1122 faces the first fixing seat 111, so when the first fixing seat 111 and the second fixing seat 112 are fixed together, the first fixing seat 111 can cover the mounting groove 1122 to encapsulate the fixing unit 11 in the mounting groove 1122. The notch of the annular groove 1123 faces away from the first through hole 113, so that when the fixing member 12 is sleeved on the second fixing seat 112, the fixing member 12 covers the annular groove 1123 to form the first water cooling channel 14.

[0055] The first hole section 1113 is connected to the second hole section 1121 to form a first through hole 113 for the laser beam to pass through. The third channel is connected to the first channel to form a first longitudinal channel for connecting the liquid inlet 1111 and the annular groove 1123. The fourth channel is connected to the second channel to form a second longitudinal channel for connecting the liquid outlet 1112 and the fourth longitudinal channel.

[0056] like Figure 1 As shown, a is the flow direction of cooling water.

[0057] In one embodiment, if Figure 1 and Figure 2 As shown, the second fixing assembly 3 includes a third fixing seat 31 and a fourth fixing seat 32. The third fixing seat 31 is arranged on the first fixing assembly 1, and a second light-through hole 311 is arranged in the third fixing seat 31. The fourth fixing seat 32 is sleeved on the third fixing seat 31, and a second water-cooling channel 33 is formed between the fourth fixing seat 32 and the third fixing seat 31, and the processing nozzle 4 is arranged on the third fixing seat 31.

[0058] After the fourth fixing seat 32 is sleeved on the third fixing seat 31 , a second water cooling channel 33 can be formed between the fourth fixing seat 32 and the third fixing seat 31 , thereby facilitating the arrangement of the second water cooling channel 33 .

[0059] In one embodiment, if Figure 1 and Figure 2 As shown, an air cooling groove 312 is provided in the third fixing seat 31, and the air cooling groove 312 surrounds the second light-through hole 311, and the notch of the air cooling groove 312 faces the processing nozzle 4. The air cooling groove 312 is used for cooling air to pass through. Since the notch of the air cooling groove 312 faces the processing nozzle 4, when the cooling air is ejected from the notch of the air cooling groove 312, it can take away the heat of the processing nozzle 4, thereby realizing the cooling of the processing nozzle 4. Through the dual heat dissipation of cooling air and cooling water, the heat dissipation efficiency of the processing nozzle 4 can be improved. The air cooling groove 312 surrounds the second light-through hole 311, so that the cooling air is evenly distributed in the air cooling groove 312, so that the cooling air can be evenly ejected from the notch of the air cooling groove 312.

[0060] In one embodiment, if Figure 2and Figure 3 As shown, the first fixed component 1 is provided with an air inlet 1114 and a first air cooling channel 15, and both ends of the first air cooling channel 15 are respectively connected to the air inlet 1114 and the air cooling groove 312, so that cooling air can be filled into the air cooling groove 312 through the air inlet 1114 and the first air cooling channel 15.

[0061] In one embodiment, if Figure 1 and Figure 2 As shown, the laser processing head further includes an insulating seat 5, one end of which is arranged on the first fixing component 1, and the second fixing component 3 is arranged on the end of the insulating seat 5 away from the first fixing component 1. A fourth light through hole 51 is arranged in the insulating seat 5, and both ends of the fourth light through hole 51 are respectively connected to the second light through hole 311 and the third light through hole 41.

[0062] The fourth light-through hole 51 is used for the laser beam to pass through. The insulating seat 5 has the function of insulating the processing nozzle 4 to improve the accuracy of detecting the distance between the processing nozzle 4 and the workpiece.

[0063] In one embodiment, the insulating seat 5 is further provided with a fifth longitudinal channel and a sixth longitudinal channel, the two ends of the fifth longitudinal channel are respectively connected to the third longitudinal channel and the second water cooling channel 33, and the two ends of the sixth longitudinal channel are respectively connected to the fourth longitudinal channel and the second water cooling channel 33. Thus, the first water cooling channel 14 and the second water cooling channel 33 are connected.

[0064] In one embodiment, if Figure 2 and Figure 3 As shown, a second air cooling channel 53 is further provided in the insulating seat 5 , and two ends of the second air cooling channel 53 are respectively connected to the first air cooling channel 15 and the air cooling groove 312 .

[0065] like Figure 3 As shown, b is the flow direction of cooling air.

[0066] In one embodiment, if Figure 1 and Figure 2 As shown, the laser processing head also includes a locking ring 6, and the peripheral side surface of the insulating seat 5 has a boss 52, the boss 52 extends into the first fixing component 1, and the locking ring 6 is sleeved on the first fixing component 1 and the insulating seat 5. The locking ring 6 can be used to press the bottom of the boss 52. The locking ring 6 is sleeved on the first fixing component 1 so as to be fixed to the first fixing component 1. The boss 52 of the insulating seat 5 extends into the first fixing component 1, and the bottom of the locking ring 6 is also sleeved on the insulating seat 5 so that the locking ring 6 presses the bottom of the boss 52 to prevent the boss 52 of the insulating seat 5 from being separated from the first fixing component 1, thereby fixing the insulating seat 5 to the first fixing component 1.

[0067] In this embodiment, the bottom of the locking ring 6 is sleeved under the boss 52 , so that the locking ring 6 can press against the bottom of the boss 52 , thereby fixing the insulating seat 5 to the first fixing component 1 .

[0068] In one embodiment, if Figure 1 and Figure 2 As shown, the boss 52 of the insulating seat 5 extends into the bottom of the fixing member 12, and the locking ring 6 is sleeved on the bottom of the fixing member 12 and below the boss 52, so as to fix the insulating seat 5 to the bottom of the fixing member 12. The locking ring 6 can be threadedly connected to the fixing member 12.

[0069] In addition, an embodiment of the present application also provides a laser processing device, which includes a laser processing head. The specific structure of the laser processing head refers to the above embodiment. Since the laser processing equipment adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments.

[0070] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A laser processing head, characterized in that: The laser processing head comprises: A first fixing component, wherein a first light-through hole is provided in the first fixing component; a control unit, wherein the control unit is disposed in the first fixing component; a second fixing component, the second fixing component being arranged on the first fixing component, a second light-through hole and a second water-cooling channel being arranged in the second fixing component; the second light-through hole being in communication with the first light-through hole, a center line of the second light-through hole being coincident with a center line of the first light-through hole, and the second water-cooling channel surrounding the second light-through hole; A processing nozzle, wherein the processing nozzle is arranged at one end of the second fixing component away from the first fixing component, the processing nozzle is electrically connected to the control unit, and a third light-through hole is arranged in the processing nozzle; the third light-through hole is connected to the second light-through hole, and the center line of the third light-through hole coincides with the center line of the second light-through hole.

2. The laser processing head according to claim 1, characterized in that A first water cooling channel is also provided in the first fixing component, and the first water cooling channel surrounds the first light-transmitting hole.

3. The laser processing head according to claim 2, characterized in that The first fixing component is provided with a liquid inlet and a liquid outlet, the liquid inlet is communicated with the first water cooling channel, the first water cooling channel is communicated with the second water cooling channel, and the second water cooling channel is communicated with the liquid outlet.

4. The laser processing head according to claim 3, characterized in that The first fixing assembly comprises: A fixing unit, wherein the liquid inlet, the liquid outlet and the control unit are all arranged on the fixing unit, and the fixing unit is provided with an annular groove, a first through hole, a first longitudinal channel and a second longitudinal channel, wherein two ends of the first longitudinal channel are respectively communicated with the liquid inlet and the annular groove, and one end of the second longitudinal channel is communicated with the liquid outlet; A fixing member, wherein the fixing member is sleeved on the fixing unit, and the fixing member covers the annular groove to form the first water-cooling channel; the fixing member is provided with a second through hole, a third longitudinal channel and a fourth longitudinal channel, the second through hole is connected with the first through hole to form the first light-transmitting hole, the two ends of the third longitudinal channel are respectively connected with the annular groove and the second water-cooling channel, and the two ends of the fourth longitudinal channel are respectively connected with the second water-cooling channel and the other end of the second longitudinal channel.

5. The laser processing head according to claim 4, characterized in that The fixing unit comprises: A first fixed seat, the liquid inlet and the liquid outlet are both arranged on the end surface of the first fixed seat, and the first fixed seat is provided with a first hole section, a first channel and a second channel; A second fixing seat, the second fixing seat is arranged at one end of the first fixing seat away from the liquid inlet, the second fixing seat is provided with a second hole section, a mounting groove, the annular groove, a third channel and a fourth channel, the notch of the mounting groove faces the first fixing seat, the notch of the annular groove faces the direction away from the first through hole, and the control unit is arranged in the mounting groove; the fixing piece is sleeved on the second fixing seat, the second hole section is connected with the first hole section to form the first through hole, the third channel is connected with the first channel to form the first longitudinal channel, and the fourth channel is connected with the second channel to form the second longitudinal channel.

6. The laser processing head according to claim 1, characterized in that: The second fixing assembly comprises: a third fixing seat, the third fixing seat being arranged on the first fixing assembly, and the second light-through hole being arranged in the third fixing seat; A fourth fixing seat, wherein the fourth fixing seat is sleeved on the third fixing seat, the second water-cooling channel is formed between the fourth fixing seat and the third fixing seat, and the processing nozzle is arranged on the third fixing seat.

7. The laser processing head according to claim 6, characterized in that An air cooling groove is arranged in the third fixing seat, the air cooling groove surrounds the second light-through hole, and the notch of the air cooling groove faces the processing nozzle.

8. The laser processing head according to claim 1, characterized in that: The laser processing head also includes: An insulating seat, one end of which is arranged on the first fixing component, and the second fixing component is arranged on the end of the insulating seat away from the first fixing component; a fourth light-through hole is arranged in the insulating seat, and both ends of the fourth light-through hole are respectively connected with the second light-through hole and the third light-through hole.

9. The laser processing head according to claim 8, characterized in that The laser processing head also includes: The locking ring has a boss on the peripheral side of the insulating seat, and the boss extends into the first fixing component. The locking ring is sleeved on the first fixing component and the insulating seat, and the locking ring can be used to press the bottom of the boss.

10. A laser processing device, characterized in that: The laser processing equipment comprises the laser processing head according to any one of claims 1 to 9.

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