Laser head

Abstract

The invention relates to the technical field of laser heads, in particular to a laser head which comprises a ceramic body and a nozzle, a first channel for laser to penetrate through is formed in the middle of the ceramic body, and the top of the ceramic body is connected with a lens cone through a connecting piece. A second channel is formed in the ceramic body, a water inlet and a water outlet which are communicated with the second channel are formed in the outer side of the ceramic body, and the water inlet and the water outlet are located in the same side. A baffle is arranged below the water inlet and the water outlet of the ceramic body in a sleeving mode, a third channel is arranged between the baffle and the outer side of the ceramic body, an air inlet communicated with the third channel is formed in the position, above the baffle, of the ceramic body, and the air inlet and the water inlet are located in the two sides of the ceramic body respectively. Therefore, two kinds of cooling, namely water cooling and air cooling, are achieved through the arrangement of the second channel and the third channel and in cooperation with the water inlet, the water outlet and the air inlet, meanwhile, water cooling is conducted from inside to outside, air cooling is conducted from outside to inside, and therefore the cooling efficiency can be improved at the same time through the two kinds of cooling.

Description

Technical Field

[0001] The invention relates to the technical field of laser heads, in particular to a laser head. Background Art

[0002] The laser head is a device for emitting and receiving lasers, and its structure includes a lens barrel for placing lenses and a nozzle located below the lens barrel, and a ceramic body is arranged between the lens barrel and the nozzle. At the same time, the laser head will generate a lot of heat when working. If the heat cannot be dissipated in time, it will affect the operation of the laser head, so it needs to be cooled well. This includes the cooling of the nozzle, and the cooling of the nozzle is mainly not to cool the nozzle directly, but to cool the nozzle by cooling the ceramic body connected to it. Secondly, the existing cooling method of the laser head generally adopts air cooling or water cooling, that is, there is only a single cooling method, and by opening an internal channel, liquid or gas is input for cooling, but the ceramic body also has a certain thickness and length, so a single cooling method is adopted, and its 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, which realizes two types of cooling, namely water cooling and air cooling, through the setting of channel two and channel three, and in conjunction with water inlets and outlets and air inlets. At the same time, water cooling is performed from the inside to the outside, and air cooling is performed from the outside to the inside, so the two types of cooling can improve the cooling efficiency at the same time, thereby solving the problem that a single cooling method takes a long time and is inefficient.

[0004] The object of the present invention is achieved in that: A laser head, comprising a ceramic body and a nozzle arranged at the bottom of the ceramic body, wherein a channel 1 for laser to pass through is opened in the middle of the ceramic body, and the top of the ceramic body is connected to a lens barrel through a connecting piece, wherein the connecting piece is used to separate the ceramic body and the lens barrel so as to reduce heat conduction, and the connecting piece is opened with a channel 7 for laser to pass through, and the connecting piece is opened with an inlet and a channel 4 for water circulation; The ceramic body is provided with a second channel for water circulation, and the inlet is connected to the second channel through a fourth channel, and the ceramic body is provided with a water inlet and a water outlet connected to the second channel, and the water inlet and the water outlet are located on the same side; The ceramic body is provided with a baffle plate below the water inlet and the water outlet, and a channel three for air circulation is provided between the baffle plate and the outside of the ceramic body, and the ceramic body is provided with an air inlet connected to the channel three above the baffle plate, and the air inlet and the water inlet are respectively located on both sides of the ceramic body.

[0005] Preferably, the channel four includes an annular channel and an outlet connected to the annular channel, the connecting piece is provided with a groove for connecting the annular channel with the inlet, and the ceramic body is provided with a through hole three for connecting the outlet with the channel two.

[0006] Preferably, the ceramic body comprises a base and an upper cover arranged on the base, wherein a nozzle is arranged at the bottom of the base, a channel 1 is opened in the middle of the base, and the top of the upper cover is used to connect with the connecting piece, and a through hole 1 is opened in the upper cover corresponding to the channel 1; A second channel for water circulation is provided between the base and the upper cover, and a water inlet and a water outlet connected to the second channel are provided on the outer side of the upper cover, and the water inlet and the water outlet are located on the same side of the upper cover; A baffle is sleeved on the outside of the base, and a channel three for air circulation is arranged between the baffle and the outside of the base, and an air inlet connected to the channel three is opened on the outside of the upper cover, and the air inlet and the water inlet are respectively located on both sides of the upper cover.

[0007] Preferably, the baffle comprises a horizontal plate and an annular plate with holes, and 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, and the annular plate is sleeved on the outside of the base, and a channel three is provided between the annular plate and the outside of the base; A diverter plate is arranged between the upper cover and the horizontal plate, and the diverter plate is provided with a second through hole for air circulation, and a protrusion is arranged on the inner wall of the second through hole, and the protrusion is provided with at least one diverter groove; Or / and, a limiting ring is arranged in the bottom opening of the annular plate, and 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.

[0008] Preferably, the second channel includes a first water flow groove and a second water flow groove, and the bottom of the upper cover is provided with the second water flow groove, and the second water flow groove is connected with the first through hole; The base has a water flow groove 1 on the top, a convex plate 1 on the outside of the water flow groove 1, and a convex plate 2 between the water flow groove 1 and the channel 2, and the convex plate 2 is located in the through hole 1 to separate the water flow groove 2 and the through hole 1; The convex plate 1 is shorter than the convex plate 2, and the bottom of the upper cover contacts the convex plate 1 and is detachably connected to the convex plate 1, and the upper cover is sleeved on the outer side of the convex plate 2.

[0009] Preferably, a mounting portion is provided at the bottom of the upper cover, and at least one slider is provided on the outer side of the mounting portion, and an L-shaped slide groove is provided on the inner wall of the convex plate, the mounting portion is located in the water flow groove, and the slider moves in the L-shaped slide groove and matches with the L-shaped slide groove to achieve the connection between the upper cover and the base; Or / and, the inner wall of the through hole 1 is provided with a protrusion 2, and the protrusion plate 2 is provided with a connecting groove 1 corresponding to the protrusion 2.

[0010] Preferably, a connecting portion is provided on the top of the nozzle, and the connecting portion is located in the channel 1 and is detachably connected to the inner wall of the channel 1; At least one slider 2 is arranged outside the connection part, and an L-shaped slide groove 2 is opened on the inner wall of the channel 1, and the slider 2 moves in the L-shaped slide groove 2 and adapts to the L-shaped slide groove 2 to realize the connection between the nozzle and the base.

[0011] Preferably, the inner wall of the first channel is provided with a step, and the connecting portion is provided with a second connecting groove corresponding to the step; Or / and, the nozzle includes a nozzle head and a connecting part, and a bevel portion is provided between the nozzle head and the connecting part, and the outer diameter of the top of the bevel portion is smaller than the outer diameter of the bottom of the bevel portion, and the outer diameter of the top of the bevel portion is less than or equal to the bottom diameter of the channel.

[0012] Preferably, a detachable cooling box is provided on one side of the lens barrel, and a channel five for water circulation is provided in the cooling box, and a filler for absorbing heat is provided between the inner wall of the cooling box and the outer wall of the channel five; A movable groove is provided on one side of the cooling box, and a movable connecting plate is provided in the movable groove, and one end of the connecting plate is located outside the cooling box, and a spring is provided between the other end of the connecting plate and the movable groove, a hook is provided on the connecting plate near the lens barrel, and a hole connected to the movable groove is provided on the cooling box so that the hook can move, and an installation groove is provided on the outside of the lens barrel, and a card slot adapted to the hook is provided in the installation groove; The cooling box is arranged on the lens barrel by matching the hook with the slot, and the hook is driven to separate from the mounting slot by moving the connecting plate to achieve disassembly.

[0013] Preferably, two L-shaped limit plates are symmetrically arranged on the outer side of the lens barrel, and the cooling box is located between the two L-shaped limit plates; Or / and, a diverter valve is provided below the cooling box, and a port 1 is provided on one side of the diverter valve, and a port 2 and a port 3 are provided on the other side of the diverter valve, wherein the port 1 is connected to the cooling box, and the port 2 and the port 3 are connected to the inlet and the water inlet respectively; The diverter valve is provided with a channel six for connecting the first port, the second port and the third port, and a movable rod is arranged in the channel six, and the rod is provided with a through hole four; When the bottom of the rod contacts the bottom of channel six, opening one is connected to opening two through through hole four; when the bottom of the rod does not contact the bottom of channel six and through hole four is not blocked by the inner wall of channel six, opening one is connected to opening two through through hole four, and opening one is connected to opening three through channel six; when through hole four is blocked by the inner wall of channel six, opening one is connected to opening three through channel six.

[0014] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: 1. The present invention realizes two types of cooling, namely water cooling and air cooling, by setting up channel two and channel three, and coordinating water inlets and outlets and air inlets. At the same time, water cooling is performed from the inside to the outside, and air cooling is performed from the outside to the inside, so the two types of cooling can improve the cooling efficiency at the same time.

[0015] At the same time, the connection piece can be used to separate the ceramic body and the lens barrel so as to reduce heat conduction, and the connection piece itself is also provided with cooling, so as to further reduce heat conduction.

[0016] 2. The preferred solution of the present invention is to provide detachable connections between components, such as a detachable setting of the nozzle, so as to facilitate maintenance and replacement.

[0017] 3. The preferred solution of the present invention is to ensure that the water entering the connecting piece and the ceramic body is cold by setting a cooling box, and the cooling box is detachable, so it is easy to repair and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is one of the cross-sectional views without the lens barrel.

[0020] Figure 3 This is the second cross-sectional view without the lens barrel.

[0021] Figure 4 Schematic diagram of the disassembly with the lens barrel removed.

[0022] Figure 5 Schematic diagram of the structure of the manifold.

[0023] Figure 6 Schematic diagram of the structure of the insulation board.

[0024] Figure 7 It is a schematic structural diagram of the cross-section of the ceramic body and the nozzle.

[0025] Figure 8 One of the structural schematic diagrams of the ceramic body and nozzle being separated.

[0026] Fig. 9 This is the second structural schematic diagram of the ceramic body and nozzle being separated.

[0027] Fig.10 Schematic diagram of the structure of the lens barrel and cooling box.

[0028] Fig.11 Schematic diagram of the structure with the lens barrel and cooling box separated.

[0029] Fig.12 This is one of the schematic diagrams of the structure of the cooling box cross section.

[0030] Fig.13 This is the second schematic diagram of the structure of the cooling box cross-section.

[0031] Fig.14 It is a schematic diagram of the structure of the diverter valve in cross section.

[0032] Reference numerals: 1-ceramic body; 11-base; 111-channel 1; 112-convex plate 1; 113-convex plate 2; 114-L-type slide slot 1; 115-connection slot 1; 116-step; 117-L-type slide slot 2; 12-upper cover; 121-through hole 1; 122-water inlet; 123-water outlet; 124-air inlet; 125-installation portion; 126-slider 1; 127-protrusion 2; 13-channel 2; 131-water flow trough 1; 132-water flow trough 2; 14-through hole three; 2-nozzle; 21-connecting part; 22-slider two; 23-connecting groove two; 24-spray head; 25- inclined surface; 3- baffle; 31- horizontal plate; 32- annular plate; 33- limiting ring; 331- inclined surface; 4-channel three; 5-diverter plate; 51-through hole two; 52-protrusion one; 53-diverter slot; 6-connector; 61-inlet; 62-channel four; 63-barrel; 64-plate; 65-channel seven; 66-groove; 7-insulating gasket; 8-connector; 9-cooling box; 91-channel five; 92-moving slot; 93-connecting plate; 94-hole; 95-hook; 10-lens tube; 101-mounting slot; 102-card slot; 103- L-shaped limit plate; 20- diverter valve; 201- port one; 202- port two; 203- port three; 204- channel six; 205-rod; 206-through hole four. DETAILED DESCRIPTION

[0033] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0034] like Figure 1-Figure 14 As shown, a laser head includes a ceramic body 1 and a nozzle 2 arranged at the bottom of the ceramic body 1, and a channel 111 for laser to pass through is opened in the middle of the ceramic body 1, and the top of the ceramic body 1 is connected to the lens barrel 10 through a connecting member 6, and the connecting member 6 is used to separate the ceramic body 1 and the lens barrel 10 so as to reduce heat conduction, and the connecting member 6 is opened with a channel 7 65 for laser to pass through, and the connecting member 6 is opened with an inlet 61 and a channel 4 62 for water circulation.

[0035] At the same time, a channel 2 13 for water circulation is opened in the ceramic body 1, and the inlet 61 is connected to the channel 2 13 through the channel 4 62, and a water inlet 122 and a water outlet 123 connected to the channel 2 13 are opened on the outside of the ceramic body 1, and the water inlet 122 and the water outlet 123 are located on the same side.

[0036] Secondly, the ceramic body 1 is provided with a baffle 3 below the water inlet 122 and the water outlet 123, and a channel three 4 for air circulation is provided between the baffle 3 and the outer side of the ceramic body 1, and the ceramic body 1 is provided with an air inlet 124 connected with the channel three 4 above the baffle 3, and the air inlet 124 and the water inlet 122 are respectively located on both sides of the ceramic body 1.

[0037] Therefore, in actual use, through the setting of channel two 13 and channel three 4, and in conjunction with the water inlet and outlet 122 and the air inlet 124, two types of cooling, namely water cooling and air cooling, are achieved. At the same time, water cooling is performed from the inside to the outside, and air cooling is performed from the outside to the inside, so the two types of cooling can improve the cooling efficiency at the same time.

[0038] Moreover, the connection piece 6 can be used to separate the ceramic body 1 and the lens barrel 10 so as to reduce heat conduction, and the connection piece 6 itself is also provided with cooling, that is, water enters from the inlet 61 and passes through the channel four 62 and the channel two 13, and then goes out from the water outlet 123, thereby further reducing heat conduction.

[0039] The second channel 13 and the third channel 4 are both 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 to avoid mutual interference.

[0040] At the same time, the connecting member 6 includes a barrel 63 and a plate 64, wherein the barrel 63 is connected to the ceramic body 1, and the plate 64 is connected to the lens barrel 10, and the internal structure of the lens barrel 10 itself is not a patent of this application, so the drawings and text are not described in detail. Secondly, sealing rings are also arranged between each component to achieve sealing and avoid leakage. For example, an insulating gasket 7 is arranged between the ceramic body 1 and the connecting member 6, and the insulating gasket 7 is provided with an 8-shaped groove, so that the 8-shaped sealing ring is placed, so that two places can be sealed at the same time, that is, one piece has multiple uses.

[0041] like Figure 2-Figure 3 As shown, channel four 62 includes an annular channel and an outlet connected to the annular channel, and the connecting piece 6 is provided with a groove 66 for connecting the annular channel with the inlet 61, and the ceramic body 1 is provided with a through hole three 14 for connecting the outlet with channel two 13.

[0042] The bottom of the groove 66 is provided with an opening so that the groove 66 is connected to the annular channel, and the outlet and the water inlet 122 are respectively located on both sides of the upper cover 12, thereby avoiding merging directly near the water inlet 122, thus avoiding the formation of a large impact force.

[0043] like Figure 2-Figure 6 As shown, the ceramic body 1 includes a base 11 and an upper cover 12 arranged on the base 11, wherein a nozzle 2 is arranged at the bottom of the base 11, and a channel 111 is opened in the middle of the base 11, and the top of the upper cover 12 is used to connect with the connecting piece 6, and the upper cover 12 is opened with a through hole 121 corresponding to the channel 111.

[0044] At the same time, a second channel 13 for water circulation is opened between the base 11 and the upper cover 12, and a water inlet 122 and a water outlet 123 connected to the second channel 13 are opened on the outer side of the upper cover 12, and the water inlet 122 and the water outlet 123 are located on the same side of the upper cover 12.

[0045] Moreover, a baffle plate 3 is sleeved on the outer side of the base 11, and a channel three 4 for air circulation is provided between the baffle plate 3 and the outer side of the base 11, and an air inlet 124 connected to the channel three 4 is opened 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.

[0046] Therefore, in actual use, there is channel two 13 between the base 11 and the upper cover 12, and there is channel three 4 between the base 11 and the baffle 3, and the baffle 3 is located below the upper cover 12, so water cooling is mainly used to cool the upper middle part of the ceramic body 1, and air cooling is mainly used to cool the lower middle part of the ceramic body 1, so the two types of cooling can improve the cooling efficiency at the same time.

[0047] like Figure 2-Figure 4 As shown, the baffle 3 includes a horizontal plate 31 with an opening and an annular plate 32, and the horizontal plate 31 is located below the upper cover 12 and connected to the upper cover 12, and the top of the annular plate 32 is connected to the horizontal plate 31, and the annular plate 32 is sleeved on the outside of the base 11, and a channel 3 4 is set between the annular plate 32 and the outside of the base 11.

[0048] Therefore, in actual use, the horizontal plate 31 is used for connection, and the annular plate 32 is used for limiting the flow direction of air.

[0049] Meanwhile, a diverter plate 5 is disposed between the upper cover 12 and the transverse plate 31 , and the diverter plate 5 is provided with a second through hole 51 for air circulation, and a protrusion 52 is disposed on the inner wall of the second through hole 51 , and the protrusion 52 is provided with at least one diverter groove 53 .

[0050] Therefore, in actual use, the diversion groove 53 can be provided to achieve diversion, increase space and allow more air to flow.

[0051] Furthermore, a limiting ring 33 is disposed in the bottom opening of the annular plate 32 , and the inner wall of the limiting ring 33 is a slope 331 , and the diameter of the top opening of the limiting ring 33 is larger than the diameter of the bottom opening of the limiting ring 33 .

[0052] Therefore, in actual use, the limiting ring 33 and the inclined surface 331 are provided to guide and limit the air, thereby moving the air toward the ceramic body 1. The bottom of the annular plate 32 is opened and grooved to allow the limiting ring 33 to be placed.

[0053] Secondly, the transverse plate 31, the diverter plate 5, the upper cover 12 and the connecting member 6 are connected by fasteners, namely screws, and the connecting member 6 is connected to the lens barrel 10 by fasteners, namely screws.

[0054] like Figure 2-Figure 9 As shown, the structure between the upper cover 12 and the base 11 is as follows: first, the channel 2 13 includes a water flow groove 1 131 and a water flow groove 2 132 , and the water flow groove 2 132 is opened at the bottom of the upper cover 12 , and the water flow groove 2 132 is connected to the through hole 1 121 .

[0055] At the same time, a water flow groove 131 is opened on the top of the base 11, and a convex plate 112 is set on the outside of the water flow groove 131, and a convex plate 2 113 is set between the water flow groove 131 and the channel 2 13, and the convex plate 2 113 is located in the through hole 121 to separate the water flow groove 2 132 and the through hole 121.

[0056] Moreover, the convex plate 112 is shorter than the convex plate 2 113 , and the bottom of the upper cover 12 contacts the convex plate 112 and is detachably connected to the convex plate 112 , and the upper cover 12 is sleeved on the outer side of the convex plate 2 113 .

[0057] Therefore, in actual use, the convex plate 113 is located in the through hole 121 to separate the water flow channel 132 and the through hole 121, and the bottom of the upper cover 12 contacts the convex plate 112, and the upper cover 12 is sleeved on the outside of the convex plate 113, thereby connecting the upper cover 12 and the base 11.

[0058] The bottom of the upper cover 12 and the convex plate 112 are connected for disassembly, and the specific structure is as follows: first, a mounting portion 125 is provided at the bottom of the upper cover 12, and at least one slider 126 is provided on the outer side of the mounting portion 125, and an L-shaped slide groove 114 is provided on the inner wall of the convex plate 112, the mounting portion 125 is located in the water flow groove 131, and the slider 126 moves in the L-shaped slide groove 114.

[0059] Therefore, in actual use, the connection between the upper cover 12 and the base 11 is achieved by matching the slider 126 with the L-shaped slot 114. In order to tighten the connection, a protrusion and a groove can be matched between the slider 126 and the L-shaped slot 114.

[0060] Meanwhile, the structure between the upper cover 12 and the base 11 is that a second protrusion 127 is disposed on the inner wall of the first through hole 121 , and a first connecting groove 115 is formed on the second protrusion plate 113 corresponding to the second protrusion 127 .

[0061] Therefore, in actual use, the connection and limiting between the upper cover 12 and the base 11 are achieved through the adaptation of the second protrusion 127 and the first connecting groove 115.

[0062] like Figure 4-Figure 7 As shown, the structure between the nozzle 2 and the base 11 is that first, a connecting portion 21 is provided on the top of the nozzle 2, and the connecting portion 21 is located in the channel 1 111 and is detachably connected to the inner wall of the channel 1 111.

[0063] The detachable connection structure is as follows: first, at least one slider 22 is disposed on the outer side of the connection portion 21 , and an L-shaped slide groove 217 is provided on the inner wall of the channel 111 , and the slider 22 moves in the L-shaped slide groove 217 .

[0064] Therefore, in actual use, the connection between the nozzle 2 and the base 11 is achieved by matching the slider 22 with the L-shaped slot 117. In order to tighten the connection, a protrusion and a groove can be matched between the slider 22 and the L-shaped slot 117.

[0065] Meanwhile, a step 116 is disposed on the inner wall of the first channel 111 , and a second connecting groove 23 is formed on the connecting portion 21 corresponding to the step 116 .

[0066] Therefore, in actual use, the connection and limiting between the nozzle 2 and the base 11 are achieved through the adaptation of the step 116 and the second connecting groove 23.

[0067] The nozzle 2 includes a nozzle head 24 and a connecting portion 21, and a chamfered portion 25 is provided between the nozzle head 24 and the connecting portion 21, and the outer diameter of the top of the chamfered portion 25 is smaller than the outer diameter of the bottom of the chamfered portion 25, and the outer diameter of the top of the chamfered portion 25 is less than or equal to the bottom diameter of the channel 111.

[0068] Therefore, in actual use, by setting the bevel portion 25, and because the outer diameter of the top of the bevel portion 25 is smaller than the outer diameter of the bottom of the bevel portion 25, and the outer diameter of the top of the bevel portion 25 is less than or equal to the bottom diameter of the through hole 121, the limitation between the nozzle 2 and the base 11 is achieved.

[0069] like Figure 10-Figure 14As shown, a detachable cooling box 9 is provided on one side of the lens barrel 10, and a channel 5 91 for water circulation is provided in the cooling box 9, and a filler for absorbing heat is provided between the inner wall of the cooling box 9 and the outer wall of the channel 5 91.

[0070] Therefore, in actual use, the cooling box 9 is provided to ensure that the water entering the connecting piece 6 and the ceramic body 1 is cold.

[0071] Secondly, the cooling box is detachable, so it is easy to repair and replace. The specific structure is: first, a movable groove 92 is opened on one side of the cooling box 9, and a movable connecting plate 93 is arranged in the movable groove 92, and one end of the connecting plate 93 is located on the outside of the cooling box 9, and a spring is arranged between the other end of the connecting plate 93 and the movable groove 92.

[0072] Moreover, the connecting plate 93 is provided with a hook 95 on the side close to the lens barrel 10 , and the cooling box 9 is provided with a hole 94 connected to the movable groove 92 so that the hook 95 can move, and the outer side of the lens barrel 10 is provided with a mounting groove 101 , and the mounting groove 101 is provided with a card slot 102 adapted to the hook 95 .

[0073] Therefore, in actual use, the cooling box 9 is set on the lens barrel 10 by matching the hook 95 with the slot 102, and the hook 95 is driven to separate from the installation slot 101 by moving the connecting plate 93 to achieve disassembly.

[0074] At the same time, 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 , and preliminary positioning and limiting can be achieved through the L-shaped limiting plates 103 .

[0075] Therefore, the specific operation is: first move the connecting plate 93 and then place the cooling box 9 between the two L-shaped limiting plates 103, so as to achieve preliminary positioning, so that the later reset can ensure that the hook 95 is adapted to the slot 102. At this time, loosen the connecting plate 93, so that the connecting plate 93 moves under the action of the spring and drives the hook 95 to move, so that the hook 95 is adapted to the slot 102. When disassembling, the connecting plate 93 is moved to drive the hook 95 to separate from the installation slot 101.

[0076] Secondly, since the cooling box 9 is connected to the inlet 61 and the water inlet 123 respectively, a diverter valve 20 is required. The specific structure is: first, a diverter valve 20 is arranged under the cooling box 9, and a port 1 201 is opened on one side of the diverter valve 20, and a port 202 and a port 3 203 are opened on the other side of the diverter valve 20, wherein the port 1 201 is connected to the cooling box 9, and the port 202 and the port 3 203 are connected to the inlet 61 and the water inlet 122 respectively.

[0077] At the same time, the diverter valve 20 is provided with a channel six 204 for connecting the port one 201, the port two 202 and the port three 203, and a movable rod 205 is arranged in the channel six 204, and the rod 205 is provided with a through hole four 206.

[0078] Therefore, in actual use, when the bottom of the rod 205 contacts the bottom of the channel six 204, the opening 1 201 is connected with the opening 2 202 through the through hole 4 206; when the bottom of the rod 205 does not contact the bottom of the channel six 204 and the through hole 4 206 is not blocked by the inner wall of the channel six 204, the opening 1 201 is connected with the opening 2 202 through the through hole 4 206, and the opening 1 201 is connected with the opening 3 203 through the channel six 204; when the through hole 4 206 is blocked by the inner wall of the channel six 204, the opening 1 201 is connected with the opening 3 203 through the channel six 204.

[0079] The moving structure of the rod 205 is that one end of the rod 205 is located outside the diverter valve 20, and the end is controlled by an electromagnetic component. Specifically, after the electromagnetic component is energized, 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 is cut off, the moving iron core will reset under the action of the spring and drive the rod 205 to reset.

[0080] The above shows and describes the basic principle and main features of the present invention and the advantages of the present invention. At the same time, the present invention is not limited by the above embodiments, so without departing from the principle and scope of the present invention, the present invention will also 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: The invention comprises a ceramic body (1) and a nozzle (2) arranged at the bottom of the ceramic body (1), wherein a channel 1 (111) for laser to pass through is provided in the middle of the ceramic body (1), and the top of the ceramic body (1) is connected to a lens barrel (10) via a connecting piece (6), wherein the connecting piece (6) is used to separate the ceramic body (1) and the lens barrel (10) so as to reduce heat conduction, and the connecting piece (6) is provided with a channel 7 (65) for laser to pass through, and the connecting piece (6) is provided with an inlet (61) and a channel 4 (62) for water to flow; The ceramic body (1) is provided with a second channel (13) for water circulation, and the inlet (61) is connected to the second channel (13) through the fourth channel (62), and the ceramic body (1) is provided with a water inlet (122) and a water outlet (123) connected to the second channel (13), and the water inlet (122) and the water outlet (123) are located on the same side; The ceramic body (1) is provided with a baffle (3) below the water inlet (122) and the water outlet (123), and a channel three (4) for air circulation is provided between the baffle (3) and the outside of the ceramic body (1), and the ceramic body (1) is provided with an air inlet (124) above the baffle (3) and connected to the channel three (4), and the air inlet (124) and the water inlet (122) are respectively located on both sides of the ceramic body (1).

2. A laser head according to claim 1, characterized in that: The channel four (62) comprises an annular channel and an outlet connected to the annular channel, the connecting piece (6) is provided with a groove (66) for connecting the annular channel with the inlet (61), and the ceramic body (1) is provided with a through hole three (14) for connecting the outlet with the channel two (13).

3. A laser head according to claim 1, characterized in that: The ceramic body (1) comprises a base (11) and an upper cover (12) arranged on the base (11), wherein a nozzle (2) is arranged at the bottom of the base (11), a channel (111) is opened in the middle of the base (11), and a top of the upper cover (12) is used to connect with a connecting piece (6), and a through hole (121) is opened in the upper cover (12) corresponding to the channel (111); A second channel (13) for water circulation is provided between the base (11) and the upper cover (12), and a water inlet (122) and a water outlet (123) in communication with the second channel (13) are provided on the outer side of the upper cover (12), and the water inlet (122) and the water outlet (123) are located on the same side of the upper cover (12); The base (11) is sleeved with a baffle (3) on the outside, and a channel three (4) for air circulation is provided between the baffle (3) and the outside of the base (11), and an air inlet (124) in communication with the channel three (4) is provided on the outside of the upper cover (12), and the air inlet (124) and the water inlet (122) are respectively located on two sides of the upper cover (12).

4. A laser head according to claim 3, characterized in that: The baffle (3) comprises a horizontal plate (31) with an opening and an annular plate (32), wherein the horizontal plate (31) is located below the upper cover (12) and is 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 on the outside of the base (11), and a channel three (4) is provided between the annular plate (32) and the outside of the base (11); A flow divider plate (5) is provided between the upper cover (12) and the horizontal plate (31), and the flow divider plate (5) is provided with a second through hole (51) for air circulation, and a protrusion (52) is provided on the inner wall of the second through hole (51), and the protrusion (52) is provided with at least one flow divider groove (53); Or / and, a limiting ring (33) is disposed in the bottom opening of the annular plate (32), the inner wall of the limiting ring (33) is a slope (331), and the caliber of the top opening of the limiting ring (33) is larger than the caliber of the bottom opening of the limiting ring (33).

5. A laser head according to claim 3, characterized in that: The second channel (13) comprises a first water flow groove (131) and a second water flow groove (132), and the bottom of the upper cover (12) is provided with the second water flow groove (132), and the second water flow groove (132) is connected to the first through hole (121); The base (11) is provided with a water flow channel 1 (131) on the top, and the base (11) is provided with a convex plate 1 (112) on the outside of the water flow channel 1 (131), and the base (11) is provided with a convex plate 2 (113) between the water flow channel 1 (131) and the second channel (13), and the convex plate 2 (113) is located in the first through hole (121) so as to separate the water flow channel 2 (132) and the first through hole (121); The convex plate one (112) is shorter than the convex plate two (113), and the bottom of the upper cover (12) is in contact with the convex plate one (112) and is detachably connected to the convex plate one (112), and the upper cover (12) is sleeved on the outside of the convex plate two (113).

6. A laser head according to claim 5, characterized in that: The upper cover (12) is provided with a mounting portion (125) at the bottom, and at least one slider (126) is provided on the outer side of the mounting portion (125), and an L-shaped slide groove (114) is provided on the inner wall of the convex plate (112), the mounting portion (125) is located in the water flow groove (131), and the slider (126) moves in the L-shaped slide groove (114) and is adapted to the L-shaped slide groove (114) to achieve connection between the upper cover (12) and the base (11); Or / and, the inner wall of the through hole one (121) is provided with a protrusion two (127), and the protrusion plate two (113) is provided with a connecting groove one (115) corresponding to the protrusion two (127).

7. A laser head according to claim 3, characterized in that: A connecting portion (21) is provided at the top of the nozzle (2), and the connecting portion (21) is located in the first channel (111) and is detachably connected to the inner wall of the first channel (111); At least one slider (22) is arranged on the outside of the connecting portion (21), and an L-shaped slide groove (117) is provided on the inner wall of the channel (111), and the slider (22) moves in the L-shaped slide groove (117) and matches with the L-shaped slide groove (117) to achieve the connection between the nozzle (2) and the base (11).

8. A laser head according to claim 7, characterized in that: The inner wall of the first channel (111) is provided with a step (116), and the connecting portion (21) is provided with a second connecting groove (23) corresponding to the step (116); Or / and, the nozzle (2) comprises a nozzle head (24) and a connecting portion (21), and a bevel portion (25) is provided between the nozzle head (24) and the connecting portion (21), and the outer diameter of the top of the bevel portion (25) is smaller than the outer diameter of the bottom of the bevel portion (25), and the outer diameter of the top of the bevel portion (25) is smaller than or equal to the bottom diameter of the channel 1 (111).

9. A laser head according to any one of claims 1 to 8, characterized in that: A detachable cooling box (9) is provided on one side of the lens barrel (10), a channel five (91) for water circulation is provided in the cooling box (9), and a filler for absorbing heat is provided between the inner wall of the cooling box (9) and the outer wall of the channel five (91); A movable groove (92) is provided on one side of the cooling box (9), and a movable connecting plate (93) is provided in the movable 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 movable groove (92), a hook (95) is provided on the connecting plate (93) at a side close to the lens barrel (10), and the cooling box (9) is provided with a hole (94) connected to the movable groove (92) so as to allow the hook (95) to move, and an installation groove (101) is provided on the outside of the lens barrel (10), and the installation groove (101) is provided with a clamping groove (102) adapted to the hook (95); The cooling box (9) is arranged on the lens barrel (10) by matching the hook (95) with the clamping slot (102), and the hook (95) is driven to separate from the mounting slot (101) by moving the connecting plate (93) to achieve disassembly.

10. A laser head according to claim 9, characterized in that: 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); Or / and, a diverter valve (20) is provided below the cooling box (9), and a first opening (201) is provided on one side of the diverter valve (20), and a second opening (202) and a third opening (203) are provided on the other side of the diverter valve (20), wherein the first opening (201) is connected to the cooling box (9), and the second opening (202) and the third opening (203) are connected to the inlet (61) and the water inlet (122), respectively; The diverter valve (20) is provided with a channel six (204) for connecting 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 the rod (205) is provided with a through hole four (206); When the bottom of the rod (205) contacts the bottom of the channel six (204), the opening one (201) is connected to 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 connected to the opening two (202) through the through hole four (206), and the opening one (201) is connected to 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 connected to the opening three (203) through the channel six (204).

Images