A laser welding apparatus having a laser welding head cooling mechanism

Abstract

This invention discloses a laser welding device with a laser welding head cooling mechanism, comprising: a laser welding head, with a housing on each of the left and right sides; copper tubes, which are respectively inserted through and fixed to the front of the inner walls of the two housings, with several water outlets on the back of the copper tubes; several water pipes, which are respectively fixed to the back of the water outlets of the two sets of copper tubes; a cold water plate, which is fixedly installed on the inner walls of the two housings; a cooling assembly, which is disposed on the front of the cold water plate; a U-shaped plate, which is fixed to the back of the cold water plate; and two guide rods, which are fixed to the bottom and top of the U-shaped plate. This invention uses a tank shell to evenly blow gas to the back of the laser welding head, thereby avoiding the problem of heat accumulation in a localized area of ​​the laser welding head, which causes thermal lensing effect and beam quality degradation.

Description

Technical Field

[0001] This invention belongs to the field of laser welding head cooling, specifically relating to a laser welding device with a laser welding head cooling mechanism. Background Technology

[0002] Laser welding equipment with a laser welding head cooling mechanism can actively and precisely control the temperature of key parts of the welding head through an external cooling mechanism, maintain the long-term stability of laser beam parameters and output power, ensure the consistency of welding penetration and weld morphology, and guarantee the welding process quality and equipment operation reliability under high power and long-term continuous operation.

[0003] Patent CN218193147U discloses a laser welding head and its cooling mechanism, as well as laser welding equipment, belonging to the field of welding equipment technology. This patent describes a laser welding head and its cooling mechanism, comprising: a cooling element, mounted on the outer surface of the laser welding head's housing and capable of thermal coupling with the optical elements inside the housing; a cooling channel formed inside the cooling element, the cooling channel having a cooling inlet for introducing cooling medium into the cooling channel and a cooling outlet for discharging the cooling medium; and a heat dissipation element, abutting a portion of the outer surface of the cooling element. When the laser welding head is working, cooling medium is introduced into the cooling channel within the cooling element, and the cooling element thermally couples with the laser welding head. The cooling medium carries away some heat from the cooling outlet, and some heat is dissipated into the environment through the heat dissipation element, thereby cooling the optical elements of the laser welding head.

[0004] Since the laser welding head of the laser welding equipment is mainly used for welding stainless steel plates of 60mm and below, with a welding power of 30KW, the high heat generated during the welding process under high power causes the temperature of the optical lens inside the welding head to rise sharply. The heat of the laser welding head accumulates locally, leading to the thermal lensing effect of the lens and the deterioration of the beam quality. At the same time, during the up-and-down reciprocating movement of the tank shell and the blowing process, the screw surface ages and rusts, which can easily cause the tank shell to jam. Furthermore, during the up-and-down reciprocating movement of the tank shell and the air pump hose, the air pump hose is prone to bending and aging, which can lead to the problem of leakage at the air pores of the tank shell and the connection of the hose. Summary of the Invention

[0005] The purpose of this invention is to provide a laser welding device with a laser welding head cooling mechanism to solve the problem that the high-intensity heat generated during the welding process causes the temperature of the optical lens inside the welding head to rise sharply, and the heat of the laser welding head to accumulate locally, which in turn leads to the thermal lensing effect of the lens and the degradation of the beam quality.

[0006] To achieve the above objectives, the present invention provides a laser welding device with a laser welding head cooling mechanism, comprising: a laser welding head, wherein a housing is provided on both the left and right sides of the laser welding head; Copper pipes are respectively inserted through and fixed to the front of the inner wall of the two machine housings, and several water inlets are opened on the back of the copper pipes; Several water pipes are fixed to the back of the outlets of the two sets of copper pipes respectively. Cold water plate, which is fixedly installed on the inner wall of the two housings; A refrigeration assembly, wherein the refrigeration assembly is disposed on the front side of the cold water plate; A U-shaped plate, which is fixed to the back of the cold water plate; Two guide rods are fixed inside the bottom and top of the spiral plate; A screw, which is rotatably mounted through and on the top surface of the spiral plate; An internal threaded ring block is slidably mounted on the outer wall of the screw, and the inner walls of the two circular holes of the internal threaded ring block are in sliding contact with the outer walls of the two guide rods. The groove shell is fixed to the front of the inner threaded ring block, and two air holes are opened on the back of the groove shell for connecting the air pump. The groove shell is used to move air to the back of the laser welding head. The screw rotates back and forth in the spiral plate. Under the constraint of the guide rod, the inner threaded ring block moves up and down in the threaded groove of the screw. The inner threaded ring block moves up and down on the guide rod. The inner threaded ring block drives the groove shell to move up and down. The air pump delivers gas to the inside of the groove shell through the hose. During the up and down movement of the groove shell, the groove shell blows gas evenly to the back of the laser welding head, causing the heat accumulated on the back of the laser welding head to move forward.

[0007] In one or more embodiments of the present invention, a micro servo motor is provided in the middle of the top surface of the spiral plate, the top surface of the screw is fixedly connected to the bottom surface of the rotating shaft of the micro servo motor, a non-self-locking thread groove is provided on the outer wall of the screw, and the inner wall of the inner threaded ring block meshes with the thread groove of the screw.

[0008] In one or more embodiments of the present invention, the bottom of the left copper pipe is provided with a water inlet and the bottom of the right copper pipe is provided with a water outlet, and the copper pipe is used to circulate cold water. The inner wall of the cold water plate is coated with thermally conductive silicone grease, and the thermally conductive silicone grease of the cold water plate is filled on the outer wall of the laser welding head. The space between the cold water plate and the laser welding head is filled with thermally conductive silicone grease to increase the contact area for heat conduction between the two. The cold water plate absorbs the heat below the laser welding head. The inner wall of the tank is equipped with a dustproof net.

[0009] In one or more embodiments of the present invention, the cooling assembly includes: a copper plate, a semiconductor block, and a semiconductor cooler, wherein the copper plate is fixed to the front of the cooling water plate, the semiconductor block is fixedly installed in the middle of the front of the copper plate, and the semiconductor cooler is fixedly installed in the middle of the front of the semiconductor block.

[0010] In one or more embodiments of the present invention, a plurality of water pipes are located behind the laser welding head, the cold water plate is disposed below the laser welding head, and the U-shaped plate is disposed behind the laser welding head.

[0011] In one or more embodiments of the present invention, a balancing device is provided on the top surface of the groove shell, the balancing device being used to lubricate the thread groove of the screw. The top surface of the uniform motion device is provided with an anti-bending device, which is used to support the hose on the air hole of the tank shell.

[0012] In one or more embodiments of the present invention, the stabilizing device includes: a plate, the plate being fixed in the middle of the top surface of the groove shell; A grooved arc frame, which is fixed to the top surface of the plate; A semi-circular groove, wherein the semi-circular groove is fixed to the front side of the inner wall of the groove arc frame; A sponge ring is fixed to the inner wall of a semi-circular groove. The inner wall of the sponge ring is filled with lubricating oil, and the sponge ring is sleeved on the outer wall of the screw. The plate drives the groove arc frame to move up and down reciprocally, the groove arc frame drives the semi-arc groove to move up and down reciprocally, and the semi-arc groove drives the sponge ring to move up and down reciprocally. The sponge ring is used to apply lubricating oil to the outer wall of the screw.

[0013] In one or more embodiments of the present invention, two loop-shaped blocks are fixed to the outer wall of the slotted arc frame, an L-shaped frame is fixed to the bottom surface of each of the two loop-shaped blocks, and an annular tube is fixed to the outer wall of each of the two L-shaped frames. The inner walls of the two annular tubes slide in contact with the outer walls of the two guide rods. The loop-shaped blocks drive the L-shaped frames to move up and down reciprocally, and the L-shaped frames drive the annular tubes to move up and down reciprocally. The annular tubes slide up and down on the surface of the guide rods.

[0014] In one or more embodiments of the present invention, the anti-bending device includes: a double arc plate, the double arc plate being fixed to the top surface of two loop-shaped blocks respectively; L-shaped rods, which are respectively fixed to the top surfaces of the two double-arc plates; Diagonal strips, which are respectively fixed to the bottom of the outer wall of two L-shaped rods; Hard rubber open rings are fixed to the ends of two inclined plates that are far apart from each other, and the hard rubber open rings are located behind the air holes of the groove shell. The L-shaped rod drives the inclined plate to move up and down reciprocally, and the inclined plate drives the hard rubber open ring to move up and down reciprocally. The hard rubber open ring is used to support the bottom of the hose.

[0015] In one or more embodiments of the present invention, a circular plate is fixed to one end of the two inclined plates that are close to each other, and a spring is fixed to one side of the two circular plates that are far from each other. The two springs are in a compressed state, and a straight plate is fixed to one end of the two springs that are far from the two circular plates. The front of the two straight plates is fixedly connected to the back of the groove shell. The inclined plates drive the circular plates to move up and down reciprocally, the circular plates drive the springs to move up and down reciprocally, and the straight plates support the springs to move up and down reciprocally. Under the action of the spring compression force, the hard rubber open ring is firmly pressed against the bottom of the air pump hose.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention uses a laser welding head, housing, copper pipe, water pipe, cold water plate, refrigeration component, U-shaped plate, guide rod, screw and inner threaded ring block to cooperate with the groove shell. The space between the cold water plate and the laser welding head is filled with thermal conductive silicone grease to increase the contact area for heat conduction between the two. The cold water plate absorbs the heat below the laser welding head. The screw rotates back and forth in the U-shaped plate. Under the restriction of the guide rod, the inner threaded ring block moves up and down in the thread groove of the screw. The inner threaded ring block moves up and down on the guide rod. The inner threaded ring block drives the groove shell to move up and down. The air pump delivers gas to the inside of the groove shell through the hose. During the up and down movement of the groove shell, the groove shell blows gas evenly to the back of the laser welding head, so that the heat accumulated on the back of the laser welding head moves forward and prevents the heat of the laser welding head from accumulating locally, causing the lens thermal lensing effect and the deterioration of the beam quality.

[0017] (2) By setting up a uniform motion device, the plate, the groove arc frame and the semi-arc groove cooperate with the sponge ring. The plate drives the groove arc frame to move up and down repeatedly, the groove arc frame drives the semi-arc groove to move up and down repeatedly, the semi-arc groove drives the sponge ring to move up and down repeatedly, and the sponge ring wipes the lubricating oil on the screw surface to prevent the screw surface from aging and rusting, which would cause the groove shell to move and get stuck.

[0018] (3) By setting up a uniform device, the present invention enables the circular block and the L-shaped frame to work together with the ring tube. The circular block drives the L-shaped frame to move up and down repeatedly, and the L-shaped frame drives the ring tube to move up and down repeatedly. The ring tube slides up and down on the surface of the guide rod, preventing the high vibration frequency of the groove arc frame from causing poor wiping effect of the sponge ring.

[0019] (4) By setting up an anti-bending device, the double arc plate, L-shaped rod and inclined plate work together with hard rubber open ring. The L-shaped rod drives the inclined plate to move up and down repeatedly, and the inclined plate drives the hard rubber open ring to move up and down repeatedly. The hard rubber open ring supports the air pump hose and moves up and down repeatedly, preventing the air pump hose from easily bending and aging, causing the air holes of the tank shell and the hose connection to bend and leak.

[0020] (5) By setting up an anti-bending device, the circular plate and the spring cooperate with the straight plate. The inclined plate drives the circular plate to move up and down repeatedly, the circular plate drives the spring to move up and down repeatedly, and the straight plate supports the spring to move up and down repeatedly. Under the compression force of the spring, the hard rubber open ring is firmly pressed against the bottom of the air pump hose, preventing the hard rubber open ring from shaking and causing poor support effect of the hard rubber open ring. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of one embodiment of the present invention; Figure 2 This is a schematic diagram of the laser welding head according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the casing in one embodiment of the present invention; Figure 4 This is a cross-sectional view of the casing in one embodiment of the present invention; Figure 5 This is a schematic diagram of the back of the casing in one embodiment of the present invention; Figure 6 This is a schematic diagram of internal components in one embodiment of the present invention; Figure 7 This is a schematic diagram of the back side of the spiral plate in one embodiment of the present invention; Figure 8 This is a schematic diagram of a stabilizing device in one embodiment of the present invention; Figure 9 As shown in one embodiment of the present invention Figure 8 A magnified view of part A; Figure 10 This is a schematic diagram of an anti-bending device in one embodiment of the present invention; Figure 11 As shown in one embodiment of the present invention Figure 10 A magnified view of part B.

[0022] Explanation of key figure labels: 1. Laser welding head; 2. Housing; 3. Copper pipe; 4. Water pipe; 5. Cold water plate; 6. Refrigeration component; 601. Copper plate; 602. Semiconductor block; 603. Semiconductor cooler; 7. U-shaped plate; 8. Guide rod; 9. Screw; 10. Internal threaded ring block; 11. Slot shell; 12. Uniform device; 121. Plate; 122. Slot arc frame; 123. Semi-arc slot; 124. Sponge ring; 125. U-shaped block; 126. L-shaped frame; 127. Ring tube; 13. Anti-bending device; 131. Double arc plate; 132. L-shaped rod; 133. Slanted strip plate; 134. Hard rubber open ring; 135. Round plate; 136. Spring; 137. Straight plate. Detailed Implementation

[0023] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0024] like Figure 1-11 As shown, a laser welding device with a laser welding head cooling mechanism includes: a laser welding head 1, and a housing 2 is provided on both the left and right sides of the laser welding head 1. Copper pipe 3, copper pipe 3 respectively penetrates and is fixed to the front of the inner wall of the two machine housings 2, and several water inlets are opened on the back of copper pipe 3; Several water pipes 4 are fixed to the back of the outlets of two sets of copper pipes 3 respectively; Cold water plate 5 is fixedly installed on the inner wall of the two housings 2; The cooling component 6 is disposed on the front side of the cold water plate 5. The cooling component 6 includes: a copper plate 601, a semiconductor block 602 and a semiconductor cooler 603. The copper plate 601 is fixed on the front side of the cold water plate 5, the semiconductor block 602 is fixedly installed in the middle of the front side of the copper plate 601, and the semiconductor cooler 603 is fixedly installed in the middle of the front side of the semiconductor block 602. The U-shaped plate 7 is fixed to the back of the cold water plate 5; Two guide rods 8 are fixed inside the bottom and top of the spiral plate 7; Screw 9 is mounted through and rotatably on the top surface of the spiral plate 7; The inner threaded ring block 10 is slidably mounted on the outer wall of the screw 9, and the inner walls of the two circular holes of the inner threaded ring block 10 are in sliding contact with the outer walls of the two guide rods 8. The groove shell 11 is fixed to the front of the inner threaded ring block 10. Two air holes are opened on the back of the groove shell 11. The two air holes of the groove shell 11 are used to connect the air pump. The housing 11 is used to move the air blower to the back of the laser welding head 1; A micro servo motor is set in the middle of the top surface of the U-shaped plate 7. The top surface of the screw 9 is fixedly connected to the bottom surface of the shaft of the micro servo motor. The outer wall of the screw 9 is provided with a non-self-locking thread groove. The inner wall of the inner threaded ring block 10 meshes with the thread groove of the screw 9. The bottom of the left copper pipe 3 is provided with a water inlet, and the bottom of the right copper pipe 3 is provided with a water outlet. The copper pipe 3 is used to circulate cold water. The inner wall of the cold water plate 5 is coated with thermal conductive silicone grease. The thermal conductive silicone grease of the cold water plate 5 is filled on the outer wall of the laser welding head 1. The inner wall of the tank shell 11 is provided with a dustproof net. Several water pipes 4 are located behind the laser welding head 1. The cold water plate 5 is located below the laser welding head 1. The U-shaped plate 7 is located behind the laser welding head 1. When using this cooling mechanism, the laser welding head 1 supports the housing 2, and the housing 2 supports the copper pipe 3. Cold water is input through the inlet of the left copper pipe 3, and the cold water enters the left copper pipe 3. The left copper pipe 3 then transports the cold water into the water inlet pipe 4, which in turn transports it into the right copper pipe 3. The outlet of the right copper pipe 3 is used to discharge the cold water heated by the laser welding head 1. At the same time, the housing 2 supports the cold water plate 5, and the cold water plate 5 supports the cooling assembly 6. The operator starts the semiconductor cooler 603, and the semiconductor block 602 on the semiconductor cooler 603 begins to cool. The semiconductor block 602 absorbs heat from the copper plate 601, and the copper plate 601 absorbs heat from the cold water plate 5. Thermal grease is used to fill the space between the cold water plate 5 and the laser welding head 1 to increase the contact area for heat conduction. The cold water plate 5 absorbs heat from below the laser welding head 1. Simultaneously, the operator activates the U-shaped plate 7. The micro servo motor's shaft begins to rotate in both directions, driving the screw 9 to rotate in both directions. The screw 9 rotates in both directions on the guide plate 7. Under the constraint of the guide rod 8, the inner threaded ring block 10 moves up and down in the threaded groove of the screw 9. The inner threaded ring block 10 moves up and down on the guide rod 8, driving the slot shell 11 to move up and down. The operator starts the air pump, which delivers gas into the slot shell 11 through a hose. During the up and down movement of the slot shell 11, the slot shell 11 blows gas evenly to the back of the laser welding head 1, causing the heat accumulated on the back of the laser welding head 1 to move forward, allowing the cooling plate 5 to cool it quickly. This avoids the problem of heat accumulation in the laser welding head 1 causing the lens thermal lensing effect and beam quality degradation during the welding process. The top surface of the tank shell 11 is provided with a uniform motion device 12, which is used to lubricate the thread groove of the screw 9. The top surface of the uniform motion device 12 is provided with an anti-bending device 13, which is used to support the hose on the air hole of the tank shell 11.

[0025] The uniform motion device 12 includes: a plate 121, which is fixed in the middle of the top surface of the tank shell 11; The grooved arc frame 122 is fixed to the top surface of the plate 121; The semi-circular groove 123 is fixed to the front of the inner wall of the groove arc frame 122; Sponge ring 124 is fixed to the inner wall of semi-arc groove 123. The inner wall of sponge ring 124 is filled with lubricating oil. Sponge ring 124 is sleeved on the outer wall of screw 9. Sponge ring 124 is used to apply lubricating oil to the outer wall of screw 9; While the inner threaded ring block 10 drives the groove shell 11 to move up and down reciprocally, the groove shell 11 drives the plate 121 to move up and down reciprocally, the plate 121 drives the groove arc frame 122 to move up and down reciprocally, the groove arc frame 122 drives the semi-arc groove 123 to move up and down reciprocally, and the semi-arc groove 123 drives the sponge ring 124 to move up and down reciprocally. During the up and down reciprocating motion, the sponge ring 124 wipes lubricating oil on the surface of the screw 9, thereby avoiding the problem of the groove shell 11 getting stuck due to aging and rusting of the screw 9 surface during the welding process of the laser welding equipment.

[0026] Two loop-shaped blocks 125 are fixed to the outer wall of the slot arc frame 122. An L-shaped frame 126 is fixed to the bottom surface of each of the two loop-shaped blocks 125. An annular tube 127 is fixed to the outer wall of each of the two L-shaped frames 126. The inner walls of the two annular tubes 127 are in sliding contact with the outer walls of the two guide rods 8. While the groove arc frame 122 drives the semi-arc groove 123 to move up and down reciprocally, the groove arc frame 122 drives the spiral block 125 to move up and down reciprocally, the spiral block 125 drives the L-shaped frame 126 to move up and down reciprocally, the L-shaped frame 126 drives the ring tube 127 to move up and down reciprocally, and the ring tube 127 slides up and down reciprocally on the surface of the guide rod 8. Under the restriction of the guide rod 8, the vibration frequency of the groove arc frame 122 is reduced, thereby avoiding the problem of poor wiping effect of the sponge ring 124 caused by the high vibration frequency of the groove arc frame 122 during the welding process of the laser welding equipment.

[0027] The anti-bending device 13 includes: a double arc plate 131, which is fixed to the top surface of two loop blocks 125 respectively; L-shaped rod 132, L-shaped rod 132 is fixed on the top surface of the two double arc plates 131 respectively; Diagonal strip 133 is fixed to the bottom of the outer wall of the two L-shaped rods 132 respectively; Hard rubber open ring 134 is fixed to the two inclined strips 133 at opposite ends. The hard rubber open ring 134 is located behind the air hole of the groove shell 11. The rigid rubber open ring 134 is used to support the bottom of the hose; While the U-shaped block 125 drives the L-shaped frame 126 to move up and down reciprocally, the U-shaped block 125 drives the double arc plate 131 to move up and down reciprocally, the double arc plate 131 drives the L-shaped rod 132 to move up and down reciprocally, the L-shaped rod 132 drives the inclined strip plate 133 to move up and down reciprocally, and the inclined strip plate 133 drives the hard rubber open ring 134 to move up and down reciprocally. The hard rubber open ring 134 moves up and down reciprocally under the air pump hose, thereby avoiding the problem of air pump hose bending and aging during the laser welding process, which causes air holes in the tank shell 11 and leakage at the hose connection.

[0028] Two inclined plates 133 are respectively fixed with a circular plate 135 at their close ends, and a spring 136 is respectively fixed at the far ends of the two circular plates 135. The two springs 136 are in a compressed state, and a straight plate 137 is respectively fixed at the far ends of the two springs 136. The front of the two straight plates 137 is fixedly connected to the back of the groove shell 11. While the L-shaped rod 132 drives the inclined plate 133 to move up and down reciprocally, the inclined plate 133 drives the circular plate 135 to move up and down reciprocally, and the circular plate 135 drives the spring 136 to move up and down reciprocally. At the same time, the slot shell 11 drives the straight plate 137 to move up and down reciprocally, and the straight plate 137 supports the spring 136 to move up and down reciprocally. Under the compression force of the spring 136, the hard rubber open ring 134 is firmly pressed against the bottom of the air pump hose, reducing the shaking of the hard rubber open ring 134. This avoids the problem of poor support effect of the hard rubber open ring 134 caused by the shaking of the hard rubber open ring 134 during the welding process of the laser welding equipment.

[0029] Working principle: Cold water is input into the inlet of the left copper pipe 3. The cold water enters the left copper pipe 3 and is then transported to the inlet pipe 4. The inlet pipe 4 then transports the cold water into the right copper pipe 3. The outlet of the right copper pipe 3 is used to discharge the cold water heated by the laser welding head 1. The semiconductor block 602 on the semiconductor cooler 603 provides cooling. The semiconductor block 602 absorbs heat from the copper plate 601, and the copper plate 601 absorbs heat from the cold water plate 5. Thermal grease is used to fill the space between the cold water plate 5 and the laser welding head 1 to increase the contact area for heat conduction. The cold water plate 5 absorbs heat from below the laser welding head 1 and returns it to the source. The shaft of the micro servo motor on the forming plate 7 drives the screw 9 to rotate back and forth. The screw 9 rotates back and forth in the forming plate 7. Under the restriction of the guide rod 8, the inner threaded ring block 10 moves up and down in the threaded groove of the screw 9. The inner threaded ring block 10 moves up and down on the guide rod 8. The inner threaded ring block 10 drives the groove shell 11 to move up and down. The air pump delivers gas to the inside of the groove shell 11 through the hose. During the up and down movement of the groove shell 11, the groove shell 11 blows gas evenly to the back of the laser welding head 1, so that the heat accumulated on the back of the laser welding head 1 moves forward, allowing the cold water plate 5 to cool it quickly. The slot shell 11 drives the plate 121 to move up and down reciprocally. The plate 121 drives the slot arc frame 122 to move up and down reciprocally. The slot arc frame 122 drives the semi-arc slot 123 to move up and down reciprocally. The semi-arc slot 123 drives the sponge ring 124 to move up and down reciprocally. The sponge ring 124 wipes the lubricating oil on the surface of the screw 9. The slotted arc frame 122 drives the loop block 125 to move up and down reciprocally, the loop block 125 drives the L-shaped frame 126 to move up and down reciprocally, the L-shaped frame 126 drives the ring tube 127 to move up and down reciprocally, and the ring tube 127 slides up and down reciprocally on the surface of the guide rod 8. The U-shaped block 125 drives the double arc plate 131 to move up and down reciprocally. The double arc plate 131 drives the L-shaped rod 132 to move up and down reciprocally. The L-shaped rod 132 drives the inclined strip plate 133 to move up and down reciprocally. The inclined strip plate 133 drives the hard rubber open ring 134 to move up and down reciprocally. The hard rubber open ring 134 is supported below the air pump hose and moves up and down reciprocally. The inclined plate 133 drives the circular plate 135 to move up and down reciprocally. The circular plate 135 drives the spring 136 to move up and down reciprocally. The straight plate 137 supports the spring 136 to move up and down reciprocally. Under the compression force of the spring 136, the hard rubber open ring 134 is firmly pressed against the bottom of the air pump hose.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A laser welding device with a laser welding head cooling mechanism, characterized in that, include: A laser welding head (1) is provided with a housing (2) on both the left and right sides of the laser welding head (1); Copper pipe (3), the copper pipe (3) passes through and is fixed to the front of the inner wall of the two housings (2), and several water inlets are opened on the back of the copper pipe (3); Several water pipes (4) are fixed on the back of the outlets of the two sets of copper pipes (3); Cold water plate (5), the cold water plate (5) is fixedly installed on the inner wall of the two housings (2); A refrigeration assembly (6) is disposed on the front side of the cold water plate (5); A spiral plate (7) is fixed to the back of the cold water plate (5); Two guide rods (8) are fixed inside the bottom and top of the spiral plate (7); Screw (9), which is mounted through and rotatably on the top surface of the spiral plate (7); The inner threaded ring block (10) is slidably mounted on the outer wall of the screw (9), and the inner walls of the two circular holes of the inner threaded ring block (10) are in sliding contact with the outer walls of the two guide rods (8); The groove shell (11) is fixed on the front side of the inner threaded ring block (10). Two air holes are opened on the back side of the groove shell (11). The two air holes of the groove shell (11) are used to connect the air pump. The groove shell (11) is used to move the air blower to the back of the laser welding head (1).

2. The laser welding equipment with a laser welding head cooling mechanism according to claim 1, characterized in that, A micro servo motor is provided in the middle of the top surface of the spiral plate (7). The top surface of the screw (9) is fixedly connected to the bottom surface of the rotating shaft of the micro servo motor. A non-self-locking thread groove is provided on the outer wall of the screw (9). The inner wall of the inner threaded ring block (10) meshes with the thread groove of the screw (9).

3. A laser welding device with a laser welding head cooling mechanism according to claim 2, characterized in that, The copper pipe (3) on the left side has an inlet at the bottom and the copper pipe (3) on the right side has an outlet at the bottom. The copper pipe (3) is used to circulate cold water. The inner wall of the cold water plate (5) is coated with thermally conductive silicone grease, and the thermally conductive silicone grease of the cold water plate (5) is filled on the outer wall of the laser welding head (1); The inner wall of the tank shell (11) is provided with a dustproof net.

4. A laser welding device with a laser welding head cooling mechanism according to claim 3, characterized in that, The cooling assembly (6) includes a copper plate (601), a semiconductor block (602), and a semiconductor cooler (603). The copper plate (601) is fixed on the front of the cold water plate (5), the semiconductor block (602) is fixedly installed in the middle of the front of the copper plate (601), and the semiconductor cooler (603) is fixedly installed in the middle of the front of the semiconductor block (602).

5. A laser welding device with a laser welding head cooling mechanism according to claim 4, characterized in that, Several water pipes (4) are located behind the laser welding head (1), the cold water plate (5) is located below the laser welding head (1), and the spiral plate (7) is located behind the laser welding head (1).

6. A laser welding device with a laser welding head cooling mechanism according to claim 5, characterized in that, The top surface of the groove shell (11) is provided with a balancing device (12), which is used to lubricate the thread groove of the screw (9). The top surface of the uniform motion device (12) is provided with an anti-bending device (13), which is used to support the hose on the air hole of the tank shell (11).

7. A laser welding device with a laser welding head cooling mechanism according to claim 6, characterized in that, The uniform motion device (12) includes: a plate (121), which is fixed in the middle of the top surface of the groove shell (11); The groove arc frame (122) is fixed to the top surface of the plate (121); A semi-circular groove (123) is fixed to the front of the inner wall of the groove arc frame (122); A sponge ring (124) is fixed to the inner wall of a semi-arc groove (123). The inner wall of the sponge ring (124) is filled with lubricating oil. The sponge ring (124) is sleeved on the outer wall of the screw (9). The sponge ring (124) is used to apply lubricating oil to the outer wall of the screw (9).

8. A laser welding device with a laser welding head cooling mechanism according to claim 7, characterized in that, Two spiral blocks (125) are fixed to the outer wall of the groove arc frame (122); The inclined strip (133) has an L-shaped frame (126) fixed to the bottom surface of the two spiral blocks (125) respectively. The outer walls of the two L-shaped frames (126) are respectively fixed with a ring tube (127). The inner walls of the two ring tubes (127) slide in contact with the outer walls of the two guide rods (8).

9. A laser welding device with a laser welding head cooling mechanism according to claim 8, characterized in that, The anti-bending device (13) includes: a double arc plate (131), which is fixed on the top surface of two loop blocks (125); L-shaped rods (132) are fixed to the top surfaces of two double-arc plates (131); Plate (133) is fixed to the bottom of the outer wall of two L-shaped rods (132); Hard rubber open ring (134), the hard rubber open ring (134) is fixed to one end of each of the two inclined strips (133) that are far apart from each other, and the hard rubber open ring (134) is located behind the air hole of the groove shell (11); The hard rubber open ring (134) is used to support the bottom of the hose.

10. A laser welding device with a laser welding head cooling mechanism according to claim 9, characterized in that, A circular plate (135) is fixed to one end of each of the two inclined plates (133) that are close to each other. A spring (136) is fixed to one side of each of the two circular plates (135) that are far from each other. The two springs (136) are in a compressed state. A straight plate (137) is fixed to one end of each of the two springs (136) that is far from the two circular plates (135). The front of the two straight plates (137) is fixedly connected to the back of the groove shell (11).

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