A laser head

Abstract

The present invention relates to the technical field of laser heads, and particularly refers to a laser head, which includes a ceramic body and a nozzle. A first channel for the laser to pass through is provided in the middle of the ceramic body, and the top of the ceramic body is connected to a lens barrel through a connecting member; a second channel is provided in the ceramic body, and a water inlet and a water outlet communicating with the second channel are provided on the outer side of the ceramic body, and the water inlet and the water outlet are located on the same side; a baffle is sleeved below the water inlet and the water outlet of the ceramic body, and a third channel is provided between the baffle and the outer side of the ceramic body. An air inlet communicating with the third channel is provided above the baffle of the ceramic body, and the air inlet and the water inlet are located on both sides of the ceramic body respectively. Therefore, through the arrangement of the second channel and the third channel, and in cooperation with the water inlet / outlet and the air inlet, two cooling methods, namely water cooling and air cooling, are realized. At the same time, the water cooling is from the inside to the outside, and the air cooling is from the outside to the inside. Therefore, the two cooling methods can improve the cooling efficiency simultaneously.

Description

Technical Field

[0001] The present invention relates to the technical field of laser heads, and particularly refers to a laser head. Background Art

[0002] A laser head is a device for emitting and receiving laser light, and its structure includes a lens barrel for placing lenses and a nozzle located below the lens barrel, and a ceramic body is provided between the lens barrel and the nozzle. At the same time, a large amount of heat is generated when the laser head is working. If the heat cannot be dissipated in time, it will affect the operation of the laser head, so cooling needs to be done well. This includes cooling the nozzle, and the cooling of the nozzle is mainly not to directly cool the nozzle, but to cool the nozzle by cooling the ceramic body connected to it. Secondly, the existing cooling methods of laser heads generally use air cooling or water cooling, that is, there is only a single cooling method, and by opening an internal channel, and then inputting liquid or gas for cooling. However, the ceramic body also has a certain thickness and length, so using a single cooling method, the cooling time is relatively long and the efficiency is not high. Summary of the Invention

[0003] The purpose of the present invention is to provide a laser head. Through the settings of channel two and channel three, and in cooperation with the water inlet and outlet and the air inlet, two cooling methods, namely water cooling and air cooling, are realized. At the same time, the water cooling is from the inside to the outside, and the air cooling is from the outside to the inside. Therefore, the two coolings can improve the cooling efficiency at the same time, thus solving the problem of long time and low efficiency of a single cooling method.

[0004] The purpose of the present invention is realized as follows:

[0005] A laser head includes a ceramic body and a nozzle provided at the bottom of the ceramic body. A channel one for the laser to pass through is opened in the middle of the ceramic body. The top of the ceramic body is connected to the lens barrel through a connector. The connector is used to separate the ceramic body and the lens barrel so as to reduce heat conduction. The connector is provided with a channel seven for the laser to pass through, and the connector is provided with an inlet and a channel four for water flow;

[0006] A channel two for water flow is opened in the ceramic body. The inlet is communicated with channel two through channel four. An inlet and an outlet for water are opened on the outside of the ceramic body, and the inlet and the outlet are located on the same side;

[0007] A baffle is sleeved below the inlet and the outlet of the ceramic body. A channel three for air flow is provided between the baffle and the outside of the ceramic body. An air inlet communicated with channel three is opened above the baffle of the ceramic body, and the air inlet and the inlet are located on both sides of the ceramic body respectively.

[0008] Preferably, the fourth channel includes an annular channel and an outlet communicating with the annular channel, and the connecting member is provided with a groove for communicating the annular channel with the inlet, and the ceramic body is provided with a third through hole for communicating the outlet with the second channel.

[0009] Preferably, the ceramic body includes a base and an upper cover disposed on the base. A nozzle is provided at the bottom of the base, a first channel is provided in the middle of the base, the top of the upper cover is used for connecting with the connecting member, and a first through hole is provided in the upper cover corresponding to the first channel;

[0010] A second channel for water flow is provided between the base and the upper cover, and an inlet and an outlet communicating with the second channel are provided on the outer side of the upper cover, and the inlet and the outlet are located on the same side of the upper cover;

[0011] A baffle is sleeved on the outer side of the base, and a third channel for air flow is provided between the baffle and the outer side of the base. An air inlet communicating with the third channel is provided on the outer side of the upper cover, and the air inlet and the inlet are located on both sides of the upper cover respectively.

[0012] Preferably, the baffle includes a perforated horizontal plate and an annular plate. The horizontal plate is located below the upper cover and connected to the upper cover. The top of the annular plate is connected to the horizontal plate, the annular plate is sleeved on the outer side of the base, and a third channel is provided between the annular plate and the outer side of the base;

[0013] A flow dividing plate is provided between the upper cover and the horizontal plate, and the flow dividing plate is provided with a second through hole for air flow. A first protrusion is provided on the inner wall of the second through hole, and at least one flow dividing groove is provided in the first protrusion;

[0014] Or / and, a limiting ring is provided in the bottom opening of the annular plate, the inner wall of the limiting ring is an inclined surface, and the diameter of the top opening of the limiting ring is larger than the diameter of the bottom opening of the limiting ring.

[0015] Preferably, the second channel includes a first water flow groove and a second water flow groove. The second water flow groove is provided at the bottom of the upper cover, and the second water flow groove communicates with the first through hole;

[0016] The first water flow groove is provided at the top of the base, a first convex plate is provided on the outer side of the base in the first water flow groove, and a second convex plate is provided between the first water flow groove and the second channel of the base. The second convex plate is located in the first through hole to separate the second water flow groove and the first through hole;

[0017] The first convex plate is shorter than the second convex plate, the bottom of the upper cover contacts the first convex plate and is detachably connected to the first convex plate, and the upper cover is sleeved on the outer side of the second convex plate.

[0018] Preferably, an installation part is provided at the bottom of the upper cover, and at least one first slider is provided on the outer side of the installation part. An L-shaped first sliding groove is formed in the inner wall of the first convex plate. The installation part is located in the first water flow groove, and the first slider moves in the L-shaped first sliding groove and is adapted to the L-shaped first sliding groove, so as to realize the connection between the upper cover and the base;

[0019] Or / and, a second protrusion is provided on the inner wall of the first through hole, and a first connection groove is formed in the second convex plate corresponding to the second protrusion.

[0020] Preferably, a connection part is provided at the top of the nozzle, and the connection part is located in the first channel and is detachably connected to the inner wall of the first channel;

[0021] At least one second slider is provided on the outer side of the connection part. An L-shaped second sliding groove is formed in the inner wall of the first channel. The second slider moves in the L-shaped second sliding groove and is adapted to the L-shaped second sliding groove, so as to realize the connection between the nozzle and the base.

[0022] Preferably, a step is provided on the inner wall of the first channel, and a second connection groove is formed in the connection part corresponding to the step;

[0023] Or / and, the nozzle includes a spray head and a connection part, and an inclined surface part is provided between the spray head and the connection part. The outer diameter of the top of the inclined surface part is smaller than the outer diameter of the bottom of the inclined surface part, and the outer diameter of the top of the inclined surface part is less than or equal to the bottom diameter of the first channel.

[0024] Preferably, a detachable cooling box is provided on one side of the lens barrel. A fifth channel for water circulation is provided in the cooling box. A heat-absorbing filler is provided between the inner wall of the cooling box and the outer wall of the fifth channel;

[0025] A moving groove is formed on one side of the cooling box. A movable connecting plate is provided in the moving groove. One end of the connecting plate is located outside the cooling box. A spring is provided between the other end of the connecting plate and the moving groove. A hook is provided on the side of the connecting plate close to the lens barrel. A hole communicating with the moving groove is formed in the cooling box for the hook to move. An installation groove is formed on the outer side of the lens barrel, and a clamping groove adapted to the hook is formed in the installation groove;

[0026] The cooling box is arranged on the lens barrel by the adaptation of the hook and the clamping groove, and the hook is separated from the installation groove by moving the connecting plate to realize disassembly.

[0027] Preferably, two L-shaped limiting plates are symmetrically provided on the outer side of the lens barrel, and the cooling box is located between the two L-shaped limiting plates;

[0028] Or / and, a flow dividing valve is provided below the cooling box. An opening one is formed on one side of the flow dividing valve. An opening two and an opening three are formed on the other side of the flow dividing valve. The opening one is connected to the cooling box, and the opening two and the opening three are respectively connected to the inlet and the water inlet;

[0029] The flow dividing valve is provided with a passage six for communicating with port one, port two and port three. A movable rod is arranged in the passage six, and a through hole four is provided in the rod.

[0030] When the bottom of the rod contacts the bottom of the passage six, port one is communicated with port two through the through hole four. When the bottom of the rod does not contact the bottom of the passage six and the through hole four is not blocked by the inner wall of the passage six, port one is communicated with port two through the through hole four, and port one is communicated with port three through the passage six. When the through hole four is blocked by the inner wall of the passage six, port one is communicated with port three through the passage six.

[0031] The prominent and beneficial technical effects of the present invention compared with the prior art are as follows:

[0032] 1. Through the arrangement of passage two and passage three, and in cooperation with the water inlet / outlet and the air inlet, the present invention realizes two types of cooling, namely water cooling and air cooling. At the same time, the water cooling is from the inside to the outside, and the air cooling is from the outside to the inside. Therefore, the two types of cooling can improve the cooling efficiency simultaneously.

[0033] Meanwhile, the setting of the connecting piece can be used to separate the ceramic body and the lens barrel, thereby reducing heat conduction. Moreover, the connecting piece itself is also provided with cooling, so heat conduction can be further reduced.

[0034] 2. The preferred solution of the present invention is that the components are detachably connected, such as the detachable setting of the nozzle, etc., which is convenient for maintenance and replacement.

[0035] 3. The preferred solution of the present invention is that through the setting of the cooling box, it is ensured that the water entering the connecting piece and the ceramic body is cold. Moreover, the cooling box is detachable, which is convenient for maintenance and replacement. Brief Description of the Drawings

[0036] Figure 1 It is a structural schematic diagram of the present invention.

[0037] Figure 2 It is one of the sectional views after removing the lens barrel.

[0038] Figure 3 It is another sectional view after removing the lens barrel.

[0039] Figure 4 It is a disassembled schematic diagram after removing the lens barrel.

[0040] Figure 5 It is a structural schematic diagram of the flow dividing plate.

[0041] Figure 6 It is a structural schematic diagram of the insulating plate.

[0042] Figure 7 It is a sectional structural schematic diagram of the ceramic body and the nozzle.

[0043] Figure 8 One of the schematic structural diagrams of the split ceramic body and nozzle.

[0044] Figure 9 Another schematic structural diagram of the split ceramic body and nozzle.

[0045] Figure 10 Schematic structural diagram of the lens barrel and the cooling box.

[0046] Figure 11 Schematic structural diagram of the split lens barrel and cooling box.

[0047] Figure 12 One of the schematic structural diagrams of the cross-section of the cooling box.

[0048] Figure 13 Another schematic structural diagram of the cross-section of the cooling box.

[0049] Figure 14 Schematic structural diagram of the cross-section of the flow dividing valve.

[0050] Reference numerals: 1 - ceramic body; 11 - base; 111 - channel one; 112 - convex plate one; 113 - convex plate two;

[0051] 114 - L-shaped chute one; 115 - connecting groove one; 116 - step; 117 - L-shaped chute two; 12 - upper cover;

[0052] 121 - through hole one; 122 - water inlet; 123 - water outlet; 124 - air inlet; 125 - mounting part;

[0053] 126 - slider one; 127 - protrusion two; 13 - channel two; 131 - water flow groove one; 132 - water flow groove two;

[0054] 14 - through hole three; 2 - nozzle; 21 - connecting part; 22 - slider two; 23 - connecting groove two; 24 - nozzle head;

[0055] 25 - inclined surface part; 3 - baffle; 31 - horizontal plate; 32 - annular plate; 33 - limiting ring; 331 - inclined surface;

[0056] 4 - channel three; 5 - flow dividing plate; 51 - through hole two; 52 - protrusion one; 53 - flow dividing groove; 6 - connecting piece;

[0057] 61 - inlet; 62 - channel four; 63 - barrel body; 64 - plate member; 65 - channel seven; 66 - groove;

[0058] 7 - insulating gasket; 8 - joint; 9 - cooling box; 91 - channel five; 92 - moving groove; 93 - connecting plate;

[0059] 94 - Hole; 95 - Hook; 10 - Lens barrel; 101 - Mounting groove; 102 - Card slot; 103 - L-shaped limiting plate;

[0060] 20 - Diverting valve; 201 - Orifice one; 202 - Orifice two; 203 - Orifice three; 204 - Passage six;

[0061] 205 - Rod; 206 - Through hole four. Detailed implementation mode

[0062] The following further elaborates on the detailed implementation mode of the present invention in conjunction with the attached drawings.

[0063] As Figures 1-14 shown, a laser head includes a ceramic body 1 and a nozzle 2 provided at the bottom of the ceramic body 1. A passage one 111 for laser to pass through is provided in the middle of the ceramic body 1. The top of the ceramic body 1 is connected to a lens barrel 10 through a connector 6. The connector 6 is used to separate the ceramic body 1 and the lens barrel 10 so as to reduce heat conduction. The connector 6 is provided with a passage seven 65 for laser to pass through. The connector 6 is provided with an inlet 61 and a passage four 62 for water flow.

[0064] At the same time, a passage two 13 for water flow is provided in the ceramic body 1. The inlet 61 is communicated with the passage two 13 through the passage four 62. An inlet 122 and an outlet 123 communicated with the passage two 13 are provided on the outside of the ceramic body 1. The inlet 122 and the outlet 123 are located on the same side.

[0065] Secondly, a baffle 3 is sleeved below the inlet 122 and the outlet 123 of the ceramic body 1. A passage three 4 for air flow is provided between the baffle 3 and the outside of the ceramic body 1. An air inlet 124 communicated with the passage three 4 is provided above the baffle 3 of the ceramic body 1. The air inlet 124 and the inlet 122 are located on both sides of the ceramic body 1 respectively.

[0066] Therefore, in the actual use process, through the settings of the passage two 13 and the passage three 4, and in cooperation with the inlet and outlet 122 and the air inlet 124, two types of cooling are realized, namely water cooling and air cooling. At the same time, the water cooling is from the inside to the outside for cooling, and the air cooling is from the outside to the inside for cooling. Therefore, the two types of cooling can improve the cooling efficiency at the same time.

[0067] Moreover, the setting of the connector 6 can be used to separate the ceramic body 1 and the lens barrel 10 so as to reduce heat conduction. The connector 6 itself is also provided with cooling, that is, water enters from the inlet 61 and passes through the passage four 62 and the passage two 13, and then exits from the outlet 123. Therefore, heat conduction can be further reduced.

[0068] Among them, both the second channel 13 and the third channel 4 are annular and centered on the central axis of the ceramic body 1, and the inlet 61, the water inlet 122, the water outlet 123, and the air inlet 124 are all connected to the water pipe through the joint 8. Moreover, the air inlet 124 and the water inlet 122 are respectively located on both sides of the upper cover 12, so as to avoid mutual interference.

[0069] At the same time, the connecting piece 6 includes a barrel body 63 and a plate member 64. The barrel body 63 is connected to the ceramic body 1, and the plate member 64 is connected to the lens barrel 10. Moreover, the internal structure of the lens barrel 10 itself is not the patent of this application, so the drawings and text will not be described in detail. Secondly, sealing rings are also provided between each component to achieve sealing and thus avoid leakage. For example, an insulating gasket 7 is provided between the ceramic body 1 and the connecting piece 6, and the insulating gasket 7 is provided with an 8-shaped groove for placing an 8-shaped sealing ring, so that two places can be sealed at the same time, that is, one piece can be used for multiple purposes.

[0070] Such as Figures 2-3 As shown, the fourth channel 62 includes an annular channel and an outlet communicating with the annular channel. The connecting piece 6 is provided with a groove 66 for communicating the annular channel with the inlet 61, and the ceramic body 1 is provided with a through hole three 14 for communicating the outlet with the second channel 13.

[0071] The bottom of the groove 66 is provided with an opening to communicate the groove 66 with the annular channel, and the outlet and the water inlet 122 are respectively located on both sides of the upper cover 12, so as to avoid directly converging near the water inlet 122, so as to avoid forming a large impact force.

[0072] Such as Figures 2-6 As shown, the ceramic body 1 includes a base 11 and an upper cover 12 provided on the base 11. A nozzle 2 is provided at the bottom of the base 11, a first channel 111 is provided in the middle of the base 11, the top of the upper cover 12 is used to connect with the connecting piece 6, and the upper cover 12 is provided with a through hole one 121 corresponding to the first channel 111.

[0073] At the same time, a second channel 13 for water flow is provided between the base 11 and the upper cover 12, and water inlets 122 and water outlets 123 communicating with the second channel 13 are provided on the outer side of the upper cover 12, and the water inlets 122 and the water outlets 123 are located on the same side of the upper cover 12.

[0074] Moreover, a baffle 3 is sleeved outside the base 11, a third channel 4 for air flow is provided between the baffle 3 and the outer side of the base 11, an air inlet 124 communicating with the third channel 4 is provided on the outer side of the upper cover 12, and the air inlet 124 and the water inlet 122 are respectively located on both sides of the upper cover 12.

[0075] Therefore, during actual use, there is a second channel 13 between the base 11 and the upper cover 12, and a third channel 4 between the base 11 and the baffle 3. Also, the baffle 3 is located below the upper cover 12. So, water cooling mainly cools the upper and middle parts of the ceramic body 1, and air cooling mainly cools the lower and middle parts of the ceramic body 1. Thus, the two cooling methods can improve the cooling efficiency simultaneously.

[0076] As Figures 2-4 shown, the baffle 3 includes a perforated horizontal plate 31 and an annular plate 32. The horizontal plate 31 is located below the upper cover 12 and connected to the upper cover 12. The top of the annular plate 32 is connected to the horizontal plate 31. The annular plate 32 is sleeved outside the base 11, and a third channel 4 is provided between the annular plate 32 and the outside of the base 11.

[0077] Therefore, during actual use, the horizontal plate 31 is used for connection, and the annular plate 32 is used to restrict the air flow direction.

[0078] Meanwhile, a flow dividing plate 5 is provided between the upper cover 12 and the horizontal plate 31. The flow dividing plate 5 is provided with a second through hole 51 for air circulation. The inner wall of the second through hole 51 is provided with a first protrusion 52, and the first protrusion 52 is provided with at least one flow dividing groove 53.

[0079] Therefore, during actual use, the setting of the flow dividing groove 53 can achieve flow division and increase the space, thus allowing more air to flow.

[0080] Moreover, a limiting ring 33 is provided inside the bottom opening of the annular plate 32. The inner wall of the limiting ring 33 is an inclined surface 331, and the diameter of the top opening of the limiting ring 33 is larger than that of the bottom opening of the limiting ring 33.

[0081] Therefore, during actual use, the setting of the limiting ring 33 and the inclined surface 331 plays a guiding and limiting role, thus making the air move towards the ceramic body 1. And the bottom opening of the annular plate 32 is grooved to place the limiting ring 33.

[0082] Secondly, the horizontal plate 31, the flow dividing plate 5, the upper cover 12 and the connecting piece 6 are connected by fasteners, namely screws. And the connecting piece 6 is connected to the lens barrel 10 by fasteners, namely screws.

[0083] As Figures 2-9 shown, the structure between the upper cover 12 and the base 11 is as follows: First, the second channel 13 includes a first water flow groove 131 and a second water flow groove 132. The bottom of the upper cover 12 is provided with the second water flow groove 132, and the second water flow groove 132 is communicated with the first through hole 121.

[0084] Meanwhile, a first water chute 131 is formed at the top of the base 11. A first convex plate 112 is provided outside the first water chute 131 on the base 11. A second convex plate 113 is provided between the first water chute 131 and the second channel 13 on the base 11. The second convex plate 113 is located within the first through hole 121 to separate the second water chute 132 and the first through hole 121.

[0085] Moreover, the first convex plate 112 is shorter than the second convex plate 113. The bottom of the upper cover 12 contacts the first convex plate 112 and is detachably connected to the first convex plate 112. The upper cover 12 is sleeved outside the second convex plate 113.

[0086] Therefore, during actual use, the second convex plate 113 is located within the first through hole 121 to separate the second water chute 132 and the first through hole 121. The bottom of the upper cover 12 contacts the first convex plate 112, and the upper cover 12 is sleeved outside the second convex plate 113, thereby connecting the upper cover 12 and the base 11.

[0087] The structure between the bottom of the upper cover 12 and the first convex plate 112 is a detachable connection. The specific structure is as follows: First, an installation portion 125 is provided at the bottom of the upper cover 12. At least one first slider 126 is provided outside the installation portion 125. An L-shaped first chute 114 is formed on the inner wall of the first convex plate 112. The installation portion 125 is located within the first water chute 131, and the first slider 126 moves within the L-shaped first chute 114.

[0088] Therefore, during actual use, the connection between the upper cover 12 and the base 11 is realized by the adaptation of the first slider 126 and the L-shaped first chute 114. Moreover, for a firm connection, a protrusion and a groove can also be provided to be adapted between the first slider 126 and the L-shaped first chute 114.

[0089] Meanwhile, the structure between the upper cover 12 and the base 11 further includes that a second protrusion 127 is provided on the inner wall of the first through hole 121, and a first connection groove 115 is formed on the second convex plate 113 corresponding to the second protrusion 127.

[0090] Therefore, during actual use, the connection and limitation between the upper cover 12 and the base 11 are realized by the adaptation of the second protrusion 127 and the first connection groove 115.

[0091] As Figures 4-7 shown, the structure between the nozzle 2 and the base 11 is as follows: First, a connection portion 21 is provided at the top of the nozzle 2. The connection portion 21 is located within the first channel 111 and is detachably connected to the inner wall of the first channel 111.

[0092] The detachable connection structure is as follows: First, at least one second slider 22 is provided outside the connection portion 21. An L-shaped second chute 117 is formed on the inner wall of the first channel 111. The second slider 22 moves within the L-shaped second chute 117.

[0093] Therefore, during actual use, the connection between the nozzle 2 and the base 11 is achieved by the slider two 22 being adapted to the L-shaped chute two 117. Moreover, for a firm connection, a protrusion and a groove can also be provided between the slider two 22 and the L-shaped chute two 117 for adaptation.

[0094] Meanwhile, a step 116 is provided on the inner wall of the channel one 111, and a connection groove two 23 is correspondingly provided on the connection part 21 for the step 116.

[0095] Therefore, during actual use, the connection and limitation between the nozzle 2 and the base 11 are achieved by the adaptation of the step 116 and the connection groove two 23.

[0096] And the nozzle 2 includes a nozzle head 24 and a connection part 21, and an inclined surface part 25 is provided between the nozzle head 24 and the connection part 21. And the outer diameter of the top of the inclined surface part 25 is smaller than the outer diameter of the bottom of the inclined surface part 25, and the outer diameter of the top of the inclined surface part 25 is less than or equal to the bottom diameter of the channel one 111.

[0097] Therefore, during actual use, through the setting of the inclined surface part 25, and because the outer diameter of the top of the inclined surface part 25 is smaller than the outer diameter of the bottom of the inclined surface part 25, and the outer diameter of the top of the inclined surface part 25 is less than or equal to the bottom diameter of the through hole one 121, the limitation between the nozzle 2 and the base 11 is achieved.

[0098] Such as Figures 10-14 As shown, a detachable cooling box 9 is provided on one side of the lens barrel 10, and a channel five 91 for water circulation is provided in the cooling box 9, and a filler for heat absorption is provided between the inner wall of the cooling box 9 and the outer wall of the channel five 91.

[0099] Therefore, during actual use, through the setting of the cooling box 9, it is ensured that the water entering the connector 6 and the ceramic body 1 is cold.

[0100] Secondly, the cooling box is detachable, which is convenient for maintenance and replacement. The specific structure is as follows: First, a moving groove 92 is provided on one side of the cooling box 9, and a movable connecting plate 93 is provided in the moving groove 92. And one end of the connecting plate 93 is located outside the cooling box 9, and a spring is provided between the other end of the connecting plate 93 and the moving groove 92.

[0101] Moreover, a hook 95 is provided on the connecting plate 93 on the side close to the lens barrel 10, and a hole 94 communicating with the moving groove 92 is provided in the cooling box 9 for the hook 95 to move. And an installation groove 101 is provided on the outside of the lens barrel 10, and a clamping groove 102 adapted to the hook 95 is provided in the installation groove 101.

[0102] Therefore, during actual use, the cooling box 9 is set on the lens barrel 10 by fitting the hook 95 with the clamping groove 102, and is disassembled by moving the connecting plate 93 to drive the hook 95 to separate from the mounting groove 101.

[0103] Meanwhile, two L-shaped limit plates 103 are symmetrically arranged on the outer side of the lens barrel 10, and the cooling box 9 is located between the two L-shaped limit plates 103, and preliminary positioning and limiting can be achieved through the L-shaped limit plates 103.

[0104] So the specific operation is: First, move the connecting plate 93, and then place the cooling box 9 between the two L-shaped limit plates 103 to achieve preliminary positioning, so that the hook 95 can be ensured to be adapted to the clamping groove 102 during later reset. At this time, release the connecting plate 93, so that the connecting plate 93 moves under the action of the spring and drives the hook 95 to move, and then the hook 95 is adapted to the clamping groove 102. When disassembling, drive the hook 95 to separate from the mounting groove 101 by moving the connecting plate 93.

[0105] Secondly, since the cooling box 9 is respectively connected to the inlet 61 and the water inlet 123, a flow dividing valve 20 is needed. The specific structure is: First, the flow dividing valve 20 is arranged below the cooling box 9, and an opening one 201 is opened on one side of the flow dividing valve 20, and an opening two 202 and an opening three 203 are opened on the other side of the flow dividing valve 20. Among them, the opening one 201 is connected to the cooling box 9, and the opening two 202 and the opening three 203 are respectively connected to the inlet 61 and the water inlet 122.

[0106] Meanwhile, the flow dividing valve 20 is provided with a channel six 204 for communicating the opening one 201, the opening two 202 and the opening three 203, and a movable rod 205 is arranged in the channel six 204, and a through hole four 206 is opened on the rod 205.

[0107] Therefore, during actual use, when the bottom of the rod 205 contacts the bottom of the channel six 204, the opening one 201 is communicated with the opening two 202 through the through hole four 206. When the bottom of the rod 205 does not contact the bottom of the channel six 204 and the through hole four 206 is not blocked by the inner wall of the channel six 204, the opening one 201 is communicated with the opening two 202 through the through hole four 206, and the opening one 201 is communicated with the opening three 203 through the channel six 204. When the through hole four 206 is blocked by the inner wall of the channel six 204, the opening one 201 is communicated with the opening three 203 through the channel six 204.

[0108] Among them, the moving structure of the rod 205 is that one end of the rod 205 is located outside the flow dividing valve 20, and this end is controlled by an electromagnetic component. Specifically, after the electromagnetic component is powered on, a magnetic field is generated between the static iron core and the moving iron core, thereby driving the moving iron core to move. At this time, the rod 205 connected to the moving iron core will also move accordingly. At the same time, after power-off, the moving iron core will reset under the action of the spring and drive the rod 205 to reset.

[0109] The above shows and describes the basic principles, main features and advantages of the present invention. At the same time, the present invention is not limited by the above embodiments. Therefore, without departing from the principles and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A laser head, characterized in that, It includes a ceramic body (1) and a nozzle (2) arranged at the bottom of the ceramic body (1). A first channel (111) for the laser to pass through is provided in the middle of the ceramic body (1). The top of the ceramic body (1) is connected to a lens barrel (10) through a connecting piece (6). The connecting piece (6) is used to separate the ceramic body (1) and the lens barrel (10) so as to reduce heat conduction. The connecting piece (6) is provided with a seventh channel (65) for the laser to pass through. The connecting piece (6) is provided with an inlet (61) and a fourth channel (62) for water flow. A second channel (13) for water flow is provided in the ceramic body (1). The inlet (61) is communicated with the second channel (13) through the fourth channel (62). An inlet port (122) and an outlet port (123) communicated with the second channel (13) are provided on the outer side of the ceramic body (1). The inlet port (122) and the outlet port (123) are located on the same side. A baffle (3) is sleeved below the inlet port (122) and the outlet port (123) of the ceramic body (1). A third channel (4) for air flow is provided between the baffle (3) and the outer side of the ceramic body (1). An air inlet (124) communicated with the third channel (4) is provided above the baffle (3) of the ceramic body (1). The air inlet (124) and the inlet port (122) are located on both sides of the ceramic body (1) respectively. A detachable cooling box (9) is provided on one side of the lens barrel (10). A fifth channel (91) for water flow is provided in the cooling box (9). A heat-absorbing filler is provided between the inner wall of the cooling box (9) and the outer wall of the fifth channel (91). A moving groove (92) is provided on one side of the cooling box (9). A movable connecting plate (93) is provided in the moving groove (92). One end of the connecting plate (93) is located outside the cooling box (9). A spring is provided between the other end of the connecting plate (93) and the moving groove (92). A hook (95) is provided on the side of the connecting plate (93) close to the lens barrel (10). A hole (94) communicated with the moving groove (92) is provided in the cooling box (9) for the hook (95) to move. An installation groove (101) is provided on the outer side of the lens barrel (10). A clamping groove (102) adapted to the hook (95) is provided in the installation groove (101). The cooling box (9) is arranged on the lens barrel (10) by the adaptation of the hook (95) and the clamping groove (102), and the hook (95) is separated from the installation groove (101) by moving the connecting plate (93) to realize disassembly.

2. The laser head according to claim 1, characterized in that: The fourth channel (62) includes an annular channel and an outlet communicated with the annular channel. A groove (66) is provided in the connecting piece (6) for communicating the annular channel with the inlet (61). A third through hole (14) is provided in the ceramic body (1) for communicating the outlet with the second channel (13).

3. A laser head according to claim 1, characterized in that: The ceramic body (1) includes a base (11) and an upper cover (12) provided on the base (11). A nozzle (2) is provided at the bottom of the base (11), and a first channel (111) is formed in the middle of the base (11). The top of the upper cover (12) is used to connect to a connector (6), and a first through hole (121) corresponding to the first channel (111) is formed in the upper cover (12). A second channel (13) for water flow is formed between the base (11) and the upper cover (12). An inlet (122) and an outlet (123) communicating with the second channel (13) are formed on the outer side of the upper cover (12), and the inlet (122) and the outlet (123) are located on the same side of the upper cover (12). A baffle (3) is sleeved on the outer side of the base (11), and a third channel (4) for air flow is provided between the baffle (3) and the outer side of the base (11). An air inlet (124) communicating with the third channel (4) is formed on the outer side of the upper cover (12), and the air inlet (124) and the inlet (122) are located on both sides of the upper cover (12).

4. A laser head according to claim 3, characterized in that: The baffle (3) includes a perforated horizontal plate (31) and an annular plate (32). The horizontal plate (31) is located below the upper cover (12) and connected to the upper cover (12). The top of the annular plate (32) is connected to the horizontal plate (31), and the annular plate (32) is sleeved on the outer side of the base (11). A third channel (4) is provided between the annular plate (32) and the outer side of the base (11). A flow dividing plate (5) is provided between the upper cover (12) and the horizontal plate (31). The flow dividing plate (5) is provided with a second through hole (51) for air flow. A first protrusion (52) is provided on the inner wall of the second through hole (51), and at least one flow dividing groove (53) is formed in the first protrusion (52). Or / and, a limiting ring (33) is provided in the bottom opening of the annular plate (32). The inner wall of the limiting ring (33) is an inclined surface (331), and the caliber of the top opening of the limiting ring (33) is larger than that of the bottom opening of the limiting ring (33).

5. The laser head according to claim 3, characterized in that: The second channel (13) includes a first water flow groove (131) and a second water flow groove (132). The second water flow groove (132) is formed at the bottom of the upper cover (12), and the second water flow groove (132) communicates with the first through hole (121). The first water flow groove (131) is formed at the top of the base (11). A first convex plate (112) is provided on the outer side of the first water flow groove (131) of the base (11). A second convex plate (113) is provided between the first water flow groove (131) and the second channel (13) of the base (11). The second convex plate (113) is located in the first through hole (121) to separate the second water flow groove (132) and the first through hole (121). The first convex plate (112) is shorter than the second convex plate (113). The bottom of the upper cover (12) contacts the first convex plate (112) and is detachably connected to the first convex plate (112). The upper cover (12) is sleeved on the outer side of the second convex plate (113).

6. The laser head according to claim 5, wherein: The bottom of the upper cover (12) is provided with an installation part (125), and at least one first slider (126) is arranged on the outer side of the installation part (125). An L-shaped first chute (114) is formed on the inner wall of the first convex plate (112). The installation part (125) is located in the first water chute (131), and the first slider (126) moves in the L-shaped first chute (114) and is adapted to the L-shaped first chute (114), so as to realize the connection between the upper cover (12) and the base (11). Or / and, a second protrusion (127) is arranged on the inner wall of the first through hole (121), and a first connection groove (115) is formed on the second convex plate (113) corresponding to the second protrusion (127).

7. The laser head according to claim 3, characterized in that: The top of the nozzle (2) is provided with a connection part (21), and the connection part (21) is located in the first channel (111) and is detachably connected to the inner wall of the first channel (111). At least one second slider (22) is arranged on the outer side of the connection part (21). An L-shaped second chute (117) is formed on the inner wall of the first channel (111). The second slider (22) moves in the L-shaped second chute (117) and is adapted to the L-shaped second chute (117), so as to realize the connection between the nozzle (2) and the base (11).

8. A laser head according to claim 7, wherein: A step (116) is arranged on the inner wall of the first channel (111), and a second connection groove (23) is formed on the connection part (21) corresponding to the step (116). Or / and, the nozzle (2) comprises a spray head part (24) and a connection part (21). An inclined surface part (25) is arranged between the spray head part (24) and the connection part (21). The outer diameter of the top of the inclined surface part (25) is smaller than the outer diameter of the bottom of the inclined surface part (25), and the outer diameter of the top of the inclined surface part (25) is less than or equal to the bottom diameter of the first channel (111).

9. A laser head according to claim 1, characterized in that: Two L-shaped limiting plates (103) are symmetrically arranged on the outer side of the lens barrel (10), and the cooling box (9) is located between the two L-shaped limiting plates (103). Or / and, a flow dividing valve (20) is arranged below the cooling box (9). An opening one (201) is formed on one side of the flow dividing valve (20), and an opening two (202) and an opening three (203) are formed on the other side of the flow dividing valve (20). The opening one (201) is connected to the cooling box (9), and the opening two (202) and the opening three (203) are respectively connected to the inlet (61) and the water inlet (122). The flow dividing valve (20) is provided with a sixth channel (204) for communicating the opening one (201), the opening two (202) and the opening three (203). A movable rod (205) is arranged in the sixth channel (204), and a fourth through hole (206) is formed in the rod (205). When the bottom of the rod (205) contacts the bottom of the sixth channel (204), the first opening (201) communicates with the second opening (202) through the fourth through-hole (206). When the bottom of the rod (205) does not contact the bottom of the sixth channel (204) and the fourth through-hole (206) is not blocked by the inner wall of the sixth channel (204), the first opening (201) communicates with the second opening (202) through the fourth through-hole (206), and the first opening (201) communicates with the third opening (203) through the sixth channel (204). When the fourth through-hole (206) is blocked by the inner wall of the sixth channel (204), the first opening (201) communicates with the third opening (203) through the sixth channel (204).

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