Automobile bumper metal plate laser cutting machining equipment and technology

Abstract

The invention relates to the technical field of laser cutting, in particular to automobile bumper sheet metal laser cutting machining equipment and technology.The automobile bumper sheet metal laser cutting machining equipment comprises a supporting frame, a mechanical arm is arranged on the outer wall of the bottom of the supporting frame, and a laser cutting head body is fixedly connected to the outer wall of one end of the mechanical arm; a nozzle is fixedly connected to the outer wall of the bottom of the laser cutting head body, and a solution channel is fixedly connected to the middle of the interior of the laser cutting head body. The flow and speed of the cooling liquid passing through the output pipe can be increased as the aperture of the large hole is larger than that of the small hole, so that the cooling liquid can quickly circulate in the mounting groove, and the effect that the cooling liquid drives the temperature of a laser beam in the solution channel due to low circulation speed of the cooling liquid is avoided; the temperature of the laser beam is reduced when light alloy is cut, thermal deformation of materials caused by high temperature of the laser beam is prevented, and therefore cutting precision and finished product quality are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser cutting, and particularly relates to a laser cutting processing device and process for automobile bumper sheet metal. Background Art

[0002] The laser cutting processing device for automobile bumper sheet metal is an advanced manufacturing device specifically used for cutting automobile bumper sheet metal parts. This device uses a high-energy laser beam as a cutting tool, and by precisely controlling the moving trajectory and power output of the laser beam, it realizes rapid and high-precision cutting of sheet metal materials. The laser cutting device is suitable for cutting sheet metal of various materials, including carbon steel, stainless steel, aluminum alloy, etc., and is particularly suitable for cutting sheet metal parts with complex shapes and structures such as automobile bumpers.

[0003] However, the following problems still exist when the traditional device is in use:

[0004] The patent with the publication number of CN118060760B discloses a laser cutting processing device for sheet metal parts. The X-direction positioning unit set in this laser cutting processing device for sheet metal parts can perform centering positioning of the metal plate in the X direction. Through the stable positioning of the transfer positioning unit and the X-direction positioning unit on the metal plate, it can avoid the movement of the metal plate due to the continuous change of the center of gravity during the cutting process, and ensure the uniformity of the cutting position of the louver holes and the stability of the cutting quality.

[0005] In the prior art, when using the same laser cutting head to cut light alloys such as aluminum alloy, in order to ensure the cutting quality, the device needs to adopt a more gentle cutting strategy, aiming to minimize the heat affected zone and the resulting deformation, so as to maintain the original mechanical properties and surface quality of the material. However, the current laser cutting head is not convenient for adjusting and controlling the temperature of the laser beam, resulting in the high temperature of the laser beam easily causing thermal deformation of the material when cutting light alloys, affecting the cutting accuracy and the quality of the finished product;

[0006] Therefore, we need a laser cutting processing device and process for automobile bumper sheet metal to solve the problem that the laser cutting head is not convenient for adjusting and controlling the temperature of the laser beam, and can make the laser cutting head convenient for adjusting and controlling the temperature of the laser beam. Summary of the Invention

[0007] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a laser cutting processing device and process for automobile bumper sheet metal, which has the advantage of making it convenient for the laser cutting head to adjust and control the temperature of the laser beam.

[0008] To achieve the above object, the present invention provides the following technical solutions: including a support frame, an outer wall of the bottom of the support frame is provided with a robotic arm, an outer wall of one end of the robotic arm is fixedly connected with a laser cutting head body, an outer wall of the bottom of the laser cutting head body is fixedly connected with a nozzle, a solution channel is fixedly connected to a middle position inside the laser cutting head body, a cooling mechanism is provided on an outer wall of the top of the laser cutting head body, an adjusting mechanism is provided on the cooling mechanism, the cooling mechanism includes a water pump, an input pipe and an output pipe, the bottom of the water pump is fixedly connected with the top of the laser cutting head body, an output end of the water pump is fixedly connected with one end of the input pipe, an input end of the water pump is fixedly connected with one end of the output pipe, the adjusting mechanism includes a U-shaped groove, and an outer wall of the U-shaped groove is fixedly connected with an inside of the output pipe.

[0009] Preferably, a groove is provided at a position of an outer wall of the top of the output pipe corresponding to an adjusting plate, an installation plate is fixedly connected to an outer wall of the groove, support rods are fixedly connected to opposite sides of the two installation plates, a gear is rotatably connected to an outer wall of the support rod, and an adjusting plate is rotatably connected to an inner wall of the U-shaped groove.

[0010] Preferably, a main shaft is rotatably connected through a middle position of the adjusting plate, an outer wall of the main shaft is fixedly connected with an inner wall of the U-shaped groove, a first circulation hole is provided on the U-shaped groove, a large hole is provided on the adjusting plate, a small hole is provided on the adjusting plate, teeth are provided on an outer wall of the adjusting plate, and an outer wall of the gear is meshed with an outer wall of the teeth.

[0011] Preferably, an inlet is provided on an outer wall of the top of the laser cutting head body, the other end of the output pipe is movably connected with an outer wall of the top of the inlet, and an installation groove is fixedly connected to an outer wall of the inside of the laser cutting head body corresponding to the solution channel.

[0012] Preferably, one side of the top of the installation groove is connected through the outer wall of the inlet, a track is fixedly connected to the inside of the installation groove, and a round hole is provided on an outer wall of the bottom of the installation groove.

[0013] Preferably, a heat conduction frame is fixedly connected to a lower part inside the installation groove, a heat conduction plate is fixedly connected to the inside of the heat conduction frame, a second circulation hole is provided on the heat conduction plate, a heat dissipation plate is fixedly connected to an outer wall of the heat conduction frame, and the outer wall of the heat dissipation plate penetrates through the inside of the laser cutting head body.

[0014] Preferably, a sliding groove is provided on the heat conduction plate, a mounting frame is slidably connected to the inside of the sliding groove, a rotating hole is provided on an outer wall of one side of the mounting frame, a rotating rod is rotatably connected to the inside of the rotating hole, a fan blade is fixedly connected to an outer wall of one end of the rotating rod, a return spring is fixedly connected to the inside of the mounting frame, and an outer wall of one end of the return spring is fixedly connected to an outer wall of one side of the heat conduction plate.

[0015] Preferably, an air chamber is provided below the inside of the laser cutting head body, air holes are provided below the inside of the air chamber, a converging shell is fixedly connected to the outer wall of the bottom of the laser cutting head body and located on the outer wall of the nozzle, and an air duct is provided above the air chamber.

[0016] Preferably, a first connecting pipe is fixedly connected to the outer wall of the air duct, a second connecting pipe is fixedly connected to the outer wall of the top of the first connecting pipe, and a connecting sleeve is threadedly connected to the outer wall of one end of the first connecting pipe.

[0017] An automobile bumper sheet metal laser cutting process is realized based on an automobile bumper sheet metal laser cutting device. This automobile bumper sheet metal laser cutting process includes the following steps:

[0018] S1: Adjust the coolant flow rate: Put a finger on the gear between the two mounting plates and turn the gear clockwise. Through the meshing connection between the gear and the teeth, drive the adjusting plate to rotate on the main shaft. When the adjusting plate rotates, the large hole and the small hole move accordingly, changing their positions relative to the first circulation hole. When the large hole reaches the position of the first circulation hole, the coolant flow rate increases, improving the circulation speed.

[0019] S2: Start the coolant circulation system: Start the water pump to make the coolant start to circulate inside the installation groove. Through the input pipe and the output pipe, a closed coolant circulation system is formed. The coolant continuously circulates inside the installation groove, continuously absorbing and carrying away the heat of the laser beam.

[0020] S3: Set the coolant track and enhance heat exchange: Ensure that the coolant rotates downward along the track around the solution channel and enters the installation groove, and passes through the stepped track to increase turbulence and vortices, so that the coolant surrounds the solution channel, increasing the heat exchange area and efficiency between the coolant and the laser beam. The laser beam is fully cooled, avoiding local overheating or insufficient cooling.

[0021] S4: Lower the coolant temperature: The coolant enters the heat conduction frame through the path set by the track, and uses the high heat conductivity of the heat conduction frame to conduct the heat to the heat conduction frame. The heat dissipation plate connected to one side of the heat conduction frame transfers the heat to the outside of the laser cutting head body to ensure the stability of the coolant temperature.

[0022] S5: Connect the cold air source and the auxiliary gas source: Insert the connecting head of the cold air source into the first connecting pipe and fix it by rotating the connecting sleeve. At the same time, connect the required auxiliary gas source to the second connecting pipe, so that the cold air enters the air chamber through the first connecting pipe and is ejected through the air holes. At the same time, make the auxiliary gas be ejected together with the cold air. The cold air reduces the temperature at the cutting part of the sheet metal, reducing thermal deformation. The auxiliary gas accelerates the cutting process and improves the cutting efficiency.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] Since the aperture of the large holes is larger than that of the small holes, the flow rate and speed of the coolant passing through the output pipe will increase, thereby enabling the coolant to quickly circulate inside the installation groove, avoiding the slow circulation speed of the coolant and the effect of affecting the temperature of the laser beam inside the solution channel. Correspondingly, by adjusting the flow rate of the coolant, the temperature of the laser beam can be reduced when cutting light alloys, preventing the high temperature of the laser beam from causing thermal deformation of the material, thereby improving the cutting accuracy and the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the present invention.

[0026] Figure 2 For the present invention Figure 1 It is an enlarged schematic structural diagram at position A.

[0027] Figure 3 It is a schematic structural diagram of the laser cutting head body of the present invention.

[0028] Figure 4 For the present invention Figure 3 It is an enlarged schematic structural diagram at position C.

[0029] Figure 5 For the present invention Figure 4 It is an enlarged schematic structural diagram at position H.

[0030] Figure 6 It is a schematic structural diagram of the interior of the output pipe of the present invention.

[0031] Figure 7 It is a schematic structural diagram of the adjusting plate of the present invention.

[0032] Figure 8 It is a schematic cross-sectional view structural diagram of the laser cutting head body of the present invention.

[0033] Figure 9 For the present invention Figure 8 It is an enlarged schematic structural diagram at position D.

[0034] Figure 10 For the present invention Figure 8 It is an enlarged schematic structural diagram at position E.

[0035] Figure 11 For the present invention Figure 10 It is an enlarged schematic structural diagram at position G.

[0036] Figure 12 For the present invention Figure 8 It is an enlarged schematic structural diagram at position F.

[0037] Figure 13This is a schematic structural diagram of the figure connecting pipe of the present invention.

[0038] Figure 14 This is a flow chart of the present invention.

[0039] In the figure: 1. Support frame; 11. Robot arm; 12. Laser cutting head body; 13. Nozzle; 14. Solution channel; 2. Water pump; 21. Input pipe; 22. Output pipe; 23. Track; 24. Installation groove; 25. Round hole; 26. Entrance; 3. Mounting plate; 31. Gear; 32. Adjusting plate; 33. U-shaped groove; 34. First circulation hole; 35. Main shaft; 36. Large hole; 37. Small hole; 38. Tooth; 4. Heat conduction frame; 41. Heat conduction plate; 42. Mounting frame; 43. Second circulation hole; 44. Rotating rod; 45. Fan blade; 46. Return spring; 47. Heat dissipation plate; 5. Air chamber; 51. Air hole; 52. Converging shell; 53. Air duct; 54. Connecting sleeve; 55. First connecting pipe; 56. Second connecting pipe. Specific embodiments

[0040] In order to clearly and completely describe the purpose, technical solution of the present invention and make the advantages more clear, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present invention.

[0041] Example 1, please refer to Figures 1 to 14, the present invention provides an automotive bumper sheet metal laser cutting processing equipment and process technical solution: including a support frame 1, an outer wall of the bottom of the support frame 1 is provided with a robotic arm 11, an outer wall of one end of the robotic arm 11 is fixedly connected with a laser cutting head body 12, an outer wall of the bottom of the laser cutting head body 12 is fixedly connected with a nozzle 13, a solution channel 14 is fixedly connected at an intermediate position inside the laser cutting head body 12, a cooling mechanism is provided on an outer wall of the top of the laser cutting head body 12, and an adjusting mechanism is provided on the cooling mechanism. The cooling mechanism includes a water pump 2, an input pipe 21 and an output pipe 22. The bottom of the water pump 2 is fixedly connected with the top of the laser cutting head body 12. One end of the output of the water pump 2 is fixedly connected with one end of the input pipe 21. One end of the input of the water pump 2 is fixedly connected with one end of the output pipe 22. The adjusting mechanism includes a U-shaped groove 33. The outer wall of the U-shaped groove 33 is fixedly connected with the inside of the output pipe 22. A main shaft 35 is rotatably connected through the middle of an adjusting plate 32. The outer wall of the main shaft 35 is fixedly connected with the inner wall of the U-shaped groove 33. A first circulation hole 34 is opened on the U-shaped groove 33. A large hole 36 is opened on the adjusting plate 32. A small hole 37 is opened on the adjusting plate 32. Teeth 38 are provided on the outer wall of the adjusting plate 32. The outer wall of a gear 31 is meshed with the outer wall of the teeth 38.

[0042] Since the aperture of the large hole 36 is larger than that of the small hole 37, the flow rate and speed of the coolant passing through the output pipe 22 will be increased, so that the coolant quickly circulates inside the installation groove 24, avoiding the slow circulation speed of the coolant and affecting the effect of the coolant driving the temperature of the laser beam inside the solution channel 14. Correspondingly, by adjusting the flow rate of the coolant, the temperature of the laser beam is reduced when cutting light alloys, preventing the high temperature of the laser beam from causing thermal deformation of the material, thereby improving the cutting accuracy and the quality of the finished product.

[0043] Embodiment 2, on the basis of Embodiment 1, a groove is opened on the outer wall of the top of the output pipe 22 at the position of the adjusting plate 32. An installation plate 3 is fixedly connected to the outer wall of the groove. Support rods are fixedly connected to opposite sides of the two installation plates 3. A gear 31 is rotatably connected to the outer wall of the support rod. An adjusting plate 32 is rotatably connected to the inner wall of the U-shaped groove 33. An inlet 26 is opened on the outer wall of the top of the laser cutting head body 12. The outer wall of the other end of the output pipe 22 is movably connected to the outer wall of the top of the inlet 26. An installation groove 24 is fixedly connected to the outer wall of the laser cutting head body 12 inside the solution channel 14. One side of the top of the installation groove 24 is connected through the outer wall of the inlet 26. A track 23 is fixedly connected inside the installation groove 24. A round hole 25 is opened on the outer wall of the bottom of the installation groove 24.

[0044] A closed system is formed by the cooling mechanism, enabling the coolant to circulate inside the installation groove 24, thereby reducing the temperature of the laser beam inside the solution channel 14. This avoids the poor cooling effect of static coolant, which cannot quickly reduce the temperature of the laser beam. Correspondingly, the cooling effect is improved through the circulating cooling method, enabling the coolant to continuously absorb the heat of the laser beam and continuously carry away the heat through circulation.

[0045] The track 23 is shaped like a step. When the coolant moves downward through the track 23, due to the change in height, additional turbulence and vortices will be generated. These turbulence and vortices can more effectively agitate the coolant, increasing the heat exchange area and efficiency between the coolant and the laser beam in the solution channel 14, avoiding local overheating or insufficient cooling, and correspondingly ensuring that the laser beam can be sufficiently cooled.

[0046] Embodiment 3: On the basis of Embodiment 2, a heat conduction frame 4 is fixedly connected to the lower part inside the installation groove 24. A heat conduction plate 41 is fixedly connected inside the heat conduction frame 4. A second circulation hole 43 is formed in the heat conduction plate 41. A heat dissipation plate 47 is fixedly connected to the outer wall of the heat conduction frame 4, and the outer wall of the heat dissipation plate 47 penetrates through the inside of the laser cutting head body 12.

[0047] The heat inside the coolant is conducted to the heat conduction frame 4, and then through the heat dissipation plate 47 connected to one side of the heat conduction frame 4, the heat absorbed on the heat conduction frame 4 is transferred to the outside of the laser cutting head body 12 for heat dissipation, avoiding the excessive temperature of the coolant itself from reducing the working performance. Correspondingly, it ensures that the temperature of the coolant is in a lower and stable range, which helps to improve the stability and precision of the laser cutting head body 12.

[0048] The heat conduction plate 41 further drives the heat inside the coolant, avoiding the temperature of the coolant rising when it moves halfway inside the installation groove 24, and reducing the cooling effect of the coolant on the laser beam when the coolant continues to circulate downward. Correspondingly, it ensures that the coolant can maintain a lower temperature during the recirculation process, which helps to continuously and effectively absorb and carry away the temperature of the laser beam, preventing the cooling effect from decreasing due to the increase in the coolant temperature.

[0049] Embodiment 4: On the basis of Embodiment 3, a chute is formed in the heat conduction plate 41. An installation frame 42 is slidably connected inside the chute. A rotation hole is formed in the outer wall of one side of the installation frame 42. A rotating rod 44 is rotatably connected inside the rotation hole. A fan blade 45 is fixedly connected to the outer wall of one end of the rotating rod 44. A return spring 46 is fixedly connected inside the installation frame 42, and the outer wall of one end of the return spring 46 is fixedly connected to the outer wall of one side of the heat conduction plate 41.

[0050] The resistance generated by the forward movement of the fan blade 45 against the coolant can cause the fan blade 45 to drive the rotating rod 44 to rotate on the mounting bracket 42. The rotation of the mounting bracket 42 then breaks the movement path of the coolant, enabling the coolant in the heat conducting frame 4 to mix and flow more fully, which helps to distribute heat more evenly throughout the heat conducting frame 4, thereby improving the cooling efficiency.

[0051] Embodiment 5, based on Embodiment 1, an air chamber 5 is provided below the interior of the laser cutting head body 12. An air hole 51 is provided below the interior of the air chamber 5. A converging shell 52 is fixedly connected to the outer wall of the bottom of the laser cutting head body 12 at the outer wall of the nozzle 13. An air duct 53 is provided above the air chamber 5. A first connecting pipe 55 is fixedly connected to the outer wall of the air duct 53. A second connecting pipe 56 is fixedly connected to the outer wall of the top of the first connecting pipe 55. A connecting sleeve 54 is threadedly connected to the outer wall of one end of the first connecting pipe 55.

[0052] Through the provision of the converging shell 52, the cold air can be converged, preventing the cold air ejected from the air hole 51 from dissipating heat everywhere and reducing the effect of the cold air. When the laser beam is ejected from the nozzle 13, the cold air contacts the laser beam while blowing on the position of the plate to be cut, thereby reducing the temperature of the cutting area of the plate, further reducing the thermal deformation caused by high temperature, and thus improving the cutting accuracy, especially when cutting thin plates, the effect is particularly remarkable. At the same time, the addition of cold air helps to reduce the heat affected zone during the cutting process, making the cutting edge smoother and burr-free.

[0053] Since the second connecting pipe 56 is movably connected to the auxiliary gas source, different auxiliary gas sources can be used according to different plates, improving the flexibility and adaptability of cutting. When the cold air drives the auxiliary gas to be ejected together, the cold air can quickly reduce the temperature of the cutting area to prevent the material from overheating, while the auxiliary gas helps to accelerate the cutting process. The two work together to significantly improve the cutting efficiency and shorten the cutting time.

[0054] The working principle and usage process of the present invention: During operation, first, when cutting lightweight alloys, the high temperature of the laser beam easily causes thermal deformation of the material, thereby affecting the cutting accuracy and the quality of the finished product. Therefore, the temperature of the laser beam is reduced by controlling the laser beam cooling mechanism.

[0055] First, when it is necessary to increase the cooling effect of the cooling mechanism, the operator puts a finger on the gear 31 between the two mounting plates 3, and then uses the finger to turn the gear 31 clockwise, and then through the meshing connection between the gear 31 and the teeth 38, while the teeth 38 rotate, the teeth 38 drive the adjustment plate 32 to rotate on the main shaft 35, and then through the rotation of the adjustment plate 32, the large hole 36 and the small hole 37 can be driven to move accordingly, so that the position of the small hole 37 and the large hole 36 is replaced. When the small hole 37 leaves the flow hole 3 4, so that the large hole 36 reaches the position of the flow hole 34. Since the aperture of the large hole 36 is larger than the aperture of the small hole 37, the flow rate and speed of the coolant passing through the output pipe 22 will be increased, so that the coolant can circulate quickly inside the mounting groove 24, avoiding the slow circulation speed of the coolant, which affects the effect of the coolant driving the temperature of the laser beam inside the solution channel 14. Accordingly, by adjusting the flow rate of the coolant, the temperature of the laser beam is reduced when cutting light alloys, and the high temperature of the laser beam is prevented from causing thermal deformation of the material, thereby improving the cutting accuracy and the quality of the finished product.

[0056] It should be noted that: in the absence of an external force, the gear 31 will not rotate on the support rod. Even if there is a small external force or disturbance, the friction between the gear 31 and the support rod is sufficient to prevent the gear 31 from starting to rotate.

[0057] Through the movement of the water pump 2, the internal coolant of the installation groove 24 can be circulated. Through the setting of the input pipe 21, the coolant transported to the bottom of the installation groove 24 is extracted, and then enters the inlet 26 through the output pipe 22, and finally enters the interior of the installation groove 24 through the inlet 26, so that the cooling mechanism forms a closed system, and the coolant circulates inside the installation groove 24, thereby reducing the temperature of the laser beam inside the solution channel 14, avoiding the poor cooling effect of the static coolant, and failing to quickly reduce the temperature of the laser beam. Accordingly, the cooling effect is improved by circulating cooling, so that the coolant can continuously absorb the heat of the heat laser beam and continuously take the heat away through circulation.

[0058] The track 23 is arranged to rotate downward around the solution channel 14, so that the coolant can move along the track 23 when entering the interior of the installation groove 24, so that the coolant completes surrounding the solution channel 14, thereby increasing the cooling effect of the coolant on the laser beam. The track 23 is shaped like a step. When the coolant moves downward through the track 23, additional turbulence and vortices will be generated due to the change in height. These turbulence and vortices can stir the coolant more effectively, increase the heat exchange area and efficiency between the coolant and the laser beam in the solution channel 14, avoid local overheating or insufficient cooling, and accordingly ensure that the laser beam can be sufficiently cooled.

[0059] When the coolant enters the interior of the heat conduction frame 4 through the path set by the track 23 under the movement installation groove 24, and then by virtue of the high thermal conductivity of the material of the heat conduction frame 4 itself, when the coolant enters the interior of the heat conduction frame 4, the heat inside the coolant is conducted to the heat conduction frame 4, and then through the heat dissipation plate 47 connected to one side of the heat conduction frame 4, the heat absorbed on the heat conduction frame 4 is transferred to the external heat dissipation of the laser cutting head body 12, avoiding the excessive temperature of the coolant itself from reducing the working performance, and correspondingly ensuring that the temperature of the coolant is in a relatively low and stable range, which helps to improve the stability and precision of the laser cutting head body 12.

[0060] Furthermore, through the heat conduction plate 41 arranged inside the heat conduction frame 4, when the coolant flows inside the heat conduction plate 41, the coolant can pass through the circulation holes II 43 on the heat conduction plate 41, thereby increasing the contact area between the coolant and the heat conduction plate 41, enabling the heat conduction plate 41 to further drive the heat inside the coolant. This avoids the temperature of the coolant rising when it moves halfway inside the installation groove 24, and when the coolant continues to circulate downward, it prevents the cooling effect of the coolant on the laser beam from decreasing. Correspondingly, it ensures that the coolant can maintain a relatively low temperature during the recirculation process, which helps to continuously and effectively absorb and remove the temperature of the laser beam, preventing the cooling effect from decreasing due to the increase in the coolant temperature.

[0061] It should be noted that: by providing a round hole 25 at the bottom of the installation groove 24, the cooled coolant can continue to move downward through the round hole 25.

[0062] When the coolant moves in one direction inside the heat conduction frame 4, the impact force generated by the movement of the coolant can be utilized to push the mounting frame 42 to move inside the sliding groove, so that the mounting frame 42 drives the fan blade 45 to move forward. Then, by using the resistance generated by the forward movement of the fan blade 45 and the coolant, the fan blade 45 can drive the rotating rod 44 to rotate on the mounting frame 42. Through the rotation of the mounting frame 42, the movement path of the coolant is broken, enabling the coolant inside the heat conduction frame 4 to be more fully mixed and flow, which helps the heat to be more evenly distributed throughout the heat conduction frame 4, thereby improving the cooling efficiency.

[0063] After the connector of the cold air source is inserted into the interior of the first connecting pipe 55 and then the connecting sleeve 54 is rotated to fix the connector of the cold air source to the first connecting pipe 55, the connection between the cold air source and the first connecting pipe 55 can be completed. After the cold air enters the interior of the air chamber 5 through the first connecting pipe 55, it can be ejected through the air holes 51. Through the arrangement of the converging shell 52, the cold air can be converged, avoiding the dissipation of the cold air ejected from the air holes 51 everywhere and reducing the effect of the cold air. When the laser beam is ejected from the nozzle 13, while the cold air contacts the laser beam, the cold air is blown at the position of the plate to be cut, thereby reducing the temperature of the cutting part of the plate, further reducing the thermal deformation caused by high temperature, and thus improving the cutting accuracy. Especially when cutting thin plates, the effect is particularly remarkable. At the same time, the addition of cold air helps to reduce the heat affected zone during the cutting process, making the cutting edge smoother and burr-free.

[0064] After the required auxiliary gas source is connected to the second connecting pipe 56, the auxiliary gas can be ejected together with the cold air through the air holes 51, and the auxiliary gas source is sprayed on the laser beam. Since the second connecting pipe 56 is movably connected to the auxiliary gas source, different auxiliary gas sources can be used according to different plates, improving the flexibility and adaptability of cutting. When the cold air drives the auxiliary gas to be ejected together, the temperature of the cutting area can be quickly reduced by the cold air to prevent the material from overheating, while the auxiliary gas helps to accelerate the cutting process. The two work together, which can significantly improve the cutting efficiency and shorten the cutting time.

[0065] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting processing device for automobile bumper sheet metal, comprising a support frame (1), characterized in that: The outer wall at the bottom of the support frame (1) is provided with a mechanical arm (11), the outer wall at one end of the mechanical arm (11) is fixedly connected to a laser cutting head body (12), the outer wall at the bottom of the laser cutting head body (12) is fixedly connected to a nozzle (13), the middle position inside the laser cutting head body (12) is fixedly connected to a solution channel (14), and the outer wall at the top of the laser cutting head body (12) is provided with a cooling mechanism, and the cooling mechanism is provided with an adjustment mechanism; The cooling mechanism comprises a water pump (2), an input pipe (21) and an output pipe (22); the bottom of the water pump (2) is fixedly connected to the top of the laser cutting head body (12); the output end of the water pump (2) is fixedly connected to one end of the input pipe (21); and the input end of the water pump (2) is fixedly connected to one end of the output pipe (22); The regulating mechanism comprises a U-shaped groove (33), and the outer wall of the U-shaped groove (33) is fixedly connected to the inside of the output pipe (22).

2. The automobile bumper sheet metal laser cutting processing equipment according to claim 1 is characterized in that: The outer wall of the top of the output pipe (22) is provided with a groove at the position of the adjustment plate (32); the outer wall of the groove is fixedly connected to a mounting plate (3); the two mounting plates (3) are fixedly connected to a support rod on opposite sides; the outer wall of the support rod is rotatably connected to a gear (31); and the inner wall of the U-shaped groove (33) is rotatably connected to the adjustment plate (32).

3. The automobile bumper sheet metal laser cutting processing equipment according to claim 2 is characterized in that: A main shaft (35) is rotatably connected to the middle of the adjustment plate (32); the outer wall of the main shaft (35) is fixedly connected to the inner wall of the U-shaped groove (33); a flow hole (34) is provided on the U-shaped groove (33); a large hole (36) is provided on the adjustment plate (32); a small hole (37) is provided on the adjustment plate (32); teeth (38) are provided on the outer wall of the adjustment plate (32); and the outer wall of the gear (31) is meshedly connected with the outer wall of the teeth (38).

4. The automobile bumper sheet metal laser cutting processing equipment according to claim 1 is characterized in that: An inlet (26) is provided on the outer wall at the top of the laser cutting head body (12), and the outer wall at the top of the inlet (26) is movably connected to the outer wall at the other end of the output tube (22). An installation groove (24) is fixedly connected to the outer wall of the solution channel (14) inside the laser cutting head body (12).

5. The automobile bumper sheet metal laser cutting processing equipment according to claim 4 is characterized in that: One side of the top of the installation groove (24) is connected to the outer wall of the entrance (26), a track (23) is fixedly connected inside the installation groove (24), and a circular hole (25) is opened on the outer wall of the bottom of the installation groove (24).

6. The automobile bumper sheet metal laser cutting processing equipment according to claim 4 is characterized in that: A heat-conducting frame (4) is fixedly connected to the lower part of the interior of the mounting groove (24), a heat-conducting plate (41) is fixedly connected to the interior of the heat-conducting frame (4), a second flow hole (43) is provided on the heat-conducting plate (41), and a heat-dissipating plate (47) is fixedly connected to the outer wall of the heat-conducting frame (4), and the outer wall of the heat-dissipating plate (47) passes through the interior of the laser cutting head body (12).

7. The automobile bumper sheet metal laser cutting processing equipment according to claim 6 is characterized in that: The heat conducting plate (41) is provided with a slide groove, the interior of the slide groove is slidably connected to a mounting frame (42), an outer wall of one side of the mounting frame (42) is provided with a rotating hole, the interior of the rotating hole is rotatably connected to a rotating rod (44), a fan blade (45) is fixedly connected to the outer wall of one end of the rotating rod (44), a return spring (46) is fixedly connected to the interior of the mounting frame (42), and the outer wall of one end of the return spring (46) is fixedly connected to the outer wall of one side of the heat conducting plate (41).

8. The automobile bumper sheet metal laser cutting processing equipment according to claim 1 is characterized by: An air chamber (5) is provided at the lower part of the interior of the laser cutting head body (12), an air hole (51) is provided at the lower part of the interior of the air chamber (5), a gathering shell (52) is fixedly connected to the outer wall of the nozzle (13) on the outer wall of the bottom of the laser cutting head body (12), and an air passage (53) is provided above the air chamber (5).

9. The automobile bumper sheet metal laser cutting processing equipment according to claim 8, characterized in that: The outer wall of the airway (53) is fixedly connected to a connecting pipe 1 (55), the outer wall at the top of the connecting pipe 1 (55) is fixedly connected to a connecting pipe 2 (56), and the outer wall at one end of the connecting pipe 1 (55) is threadedly connected to a connecting sleeve (54).

10. A laser cutting process for automobile bumper sheet metal, which is realized based on the automobile bumper sheet metal laser cutting process equipment according to any one of claims 1 to 9, characterized in that: The automobile bumper sheet metal laser cutting process comprises the following steps: S1: Adjust the coolant flow rate: put a finger on the gear (31) between the two mounting plates (3), turn the gear (31) clockwise, and drive the adjustment plate (32) to rotate on the main shaft (35) through the meshing connection between the gear (31) and the teeth (38). When the adjustment plate (32) rotates, the large hole (36) and the small hole (37) move accordingly, changing their positions relative to the circulation hole 1 (34). When the large hole (36) reaches the position of the circulation hole 1 (34), the coolant flow rate increases, thereby improving the circulation speed; S2: Start the coolant circulation system: Start the water pump (2) to make the coolant circulate inside the installation groove (24) through the input pipe (21) and the output pipe (22), so as to form a closed coolant circulation system. The coolant circulates continuously in the installation groove (24), continuously absorbing and taking away the heat of the laser beam; S3: Setting a coolant track and enhancing heat exchange: ensuring that the coolant rotates along the track (23) around the solution channel (14) and is set downward to enter the installation groove (24), and increases turbulence and vortex through the step-shaped track (23), so that the coolant surrounds the solution channel (14), increases the heat exchange area and efficiency between the coolant and the laser beam, and the laser beam is fully cooled, avoiding local overheating or insufficient cooling; S4: lowering the temperature of the coolant: the coolant enters the interior of the heat-conducting frame (4) through the path set by the track (23), and conducts heat to the heat-conducting frame (4) by utilizing the high-efficiency conductivity of the heat-conducting frame (4). The heat sink (47) connected to one side of the heat-conducting frame (4) transfers the heat to the outside of the laser cutting head body (12), thereby ensuring that the temperature of the coolant is stable; S5: Connect the cold air source and the auxiliary gas source: insert the connector of the cold air source into the interior of the connecting tube 1 (55), rotate the connecting sleeve (54) to fix the connection, and at the same time, connect the required auxiliary gas source to the connecting tube 2 (56), so that the cold air enters the gas chamber (5) through the connecting tube 1 (55) and is ejected through the air hole (51). At the same time, the auxiliary gas is ejected together with the cold air. The cold air reduces the temperature at the cutting point of the plate and reduces thermal deformation. The auxiliary gas accelerates the cutting process and improves the cutting efficiency.

Images