Die laser welding device and welding method

Abstract

The invention discloses a mold laser welding device and method, and relates to the field of welding equipment.The mold laser welding device comprises a welding main machine, a water cooling machine and an operation table, the water cooling machine and the operation table are connected with the welding main machine, a laser emitting head is installed on the welding main machine, and a microscope is installed on the laser emitting head; the laser emission head is located above the operation table, a water return pipe and a water inlet pipe are connected between the welding main machine and the water cooling machine, an emergency stop switch is installed on one side of the water cooling machine, and the welding main machine and the water cooling machine are both electrically connected with the emergency stop switch. It needs to be explained that in the embodiment of the invention, when the water cooling machine has the problem of water outlet blockage or refrigeration effect reduction, the two sealing plates are automatically opened, so that the two switching boxes convey water in the auxiliary water tank into the switching pipe, and the water enters the water inlet pipe through the switching pipe to help the welding main machine to carry out auxiliary cooling; the problem that the welding host is overheated is avoided, and safe use of the welding host is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to a mold laser welding device and a welding method. Background Art

[0002] Mold laser welding is a high-precision welding method that uses a high-energy laser beam to locally heat a small area of ​​the mold to melt and combine the materials. This method is also called a mold laser repair machine. It effectively makes up for the shortcomings of traditional welding technology in repairing and welding fine surfaces. Specifically, the working principle of mold laser welding is to use the high thermal energy of the laser and concentrated fixed-point welding technology to accurately and quickly weld and repair the mold. The laser beam is focused on a very small area or the joint of the workpiece through an optical system, so that the welded area forms a heat source area with highly concentrated energy, thereby melting the welded material and forming a firm weld point and weld.

[0003] It should be noted that in the process of welding the mold, since the repair position is basically small, a microscope is needed for auxiliary observation during welding, and a water cooler is needed to assist in cooling the welding host to ensure the temperature of the welding host. However, in actual use, a machine generally needs to be used for a long time. Therefore, in the long-term use process, the equipment is bound to malfunction, resulting in a decrease in the cooling effect of the water cooler or a blockage in the water cooler, causing the water temperature out of the water cooler to be high, unable to achieve the cooling effect, and even causing the temperature of the welding host to rise; in addition, when the water cooler is blocked, the water in the welding host continues to decrease, which also causes the temperature in the welding host to continue to rise, and then the welding host is damaged due to high temperature. Summary of the invention

[0004] The purpose of the present invention is to provide a mold laser welding device and a welding method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A mold laser welding device, comprising a welding host, a water cooler and an operating table connected to the welding host, wherein a laser emitter is installed on the welding host, a microscope is installed on the laser emitter, and the laser emitter is located above the operating table. A return pipe and a water inlet pipe are connected between the welding host and the water cooler, an emergency stop switch is installed on one side of the water cooler, and the welding host and the water cooler are both electrically connected to the emergency stop switch; It also includes an auxiliary water tank, the auxiliary water tank is installed on one side of the water cooler, an auxiliary switching mechanism is installed on the auxiliary water tank, the water inlet pipe is connected to the auxiliary switching mechanism, and the auxiliary switching mechanism is used to transport the cold water in the auxiliary water tank to the water inlet pipe; the auxiliary switching mechanism includes a closing box, the closing box is installed on the water inlet pipe, two switching boxes are installed on the bottom side of the auxiliary water tank, the two switching boxes are connected to a switching pipe, the two switching pipes are connected to the water inlet pipe, and closing plates for closing the switching boxes are rotatably installed in the two switching boxes, an expansion push plate is movably installed in the closing box, a synchronization rod is installed on the top side of the expansion push plate, a trigger frame is installed on the top of the synchronization rod, a lifting frame is installed on the trigger frame, the lifting frame is movably installed on one of the switching boxes, and the lifting frame is used to block the closing plate; It also includes a water shortage switching mechanism, which is installed on the water inlet pipe and is used to transport the cold water in the auxiliary water tank to the water inlet pipe; the water shortage switching mechanism includes an amplifying tube, which is connected to the water inlet pipe, and a rebound frame is installed on the bottom side of the amplifying tube, which is movably installed on one side of the closed box, and is used to block the corresponding closed plate in another switching box, and the rebound frame is connected to the lifting frame.

[0006] Furthermore, in a preferred embodiment of the present invention, the auxiliary switching mechanism further comprises two water-passing racks, the two water-passing racks are respectively installed in the two switching boxes, and the two closing plates are respectively used to close the two water-passing racks; A mounting seat is installed on the inner wall of the two switching boxes on the side away from each other, and a torsion groove is opened on the two mounting seats. A rotating shaft is rotatably installed in the two torsion grooves, and the two closing plates are installed on the rotating shaft. A torsion spring is installed on the inner wall of the torsion groove, and the other end of the torsion spring is installed on the inner wall of the torsion groove.

[0007] Furthermore, in a preferred embodiment of the present invention, a retraction spring is connected between the closed box and the trigger frame, and the retraction spring is used to pull the trigger frame to reset; One side of the trigger frame is arranged in an arc shape, and the trigger frame is in contact with the emergency stop switch.

[0008] Furthermore, in a preferred embodiment of the present invention, an alarm switch is installed on one side of the water cooler, an alarm light is installed on the top side of the auxiliary water tank, the alarm light is electrically connected to the alarm switch, and the trigger frame is moved upward to trigger the alarm switch and the emergency stop switch.

[0009] Furthermore, in a preferred embodiment of the present invention, the water shortage switching mechanism also includes a limit rod, a support shaft is installed on the top side of the switching box, the limit rod is rotatably installed on the support shaft, and the limit rod is rotated to block the rebound frame.

[0010] Furthermore, in a preferred embodiment of the present invention, a rebound groove is provided on one side of the closed box, a rebound block is slidably installed in the rebound groove, and the rebound block is installed on the rebound frame; A pull-up spring is installed on the inner wall of the rebound groove, and the other end of the pull-up spring is installed on the rebound block.

[0011] Furthermore, in a preferred embodiment of the present invention, an automatic protection mechanism is also included, wherein the automatic protection mechanism is installed on the laser emitting head, and the automatic protection mechanism is used to close the laser emitting head; The automatic protection mechanism comprises a protection plate, which is used to close the laser emitting head. A mounting frame is installed on one side of the laser emitting head, a transverse frame is slidably installed on one side of the mounting frame, and the protection plate is installed on the transverse frame.

[0012] Further, in a preferred embodiment of the present invention, a rotating frame is rotatably mounted on one side of the mounting frame, and two driving shafts are mounted on the rotating frame; A driving groove is provided on the transverse moving frame, one of the driving shafts is movably installed in the driving groove, and the other driving shaft is rotatably installed on the mounting frame.

[0013] Further, in a preferred embodiment of the present invention, a driving gear is installed on one side of the rotating frame, and a pushing gear rack is slidably installed on one side of the mounting frame, and the pushing gear rack is meshed with the driving gear; A push pad is installed on the top side of the pushing gear frame, and the push pad is made of silicone material. A return spring is installed on the pushing gear frame, and the other end of the return spring is installed on the inner wall of the mounting frame.

[0014] A mold laser welding method is performed according to the mold laser welding device described above, comprising the following steps: S1. When the water cooler fails and the cooling effect decreases, the water temperature in the water inlet pipe continues to rise, causing the temperature of the closed box to continue to rise, and then the air in the closed box expands due to the heat and pushes the expansion push plate to move. The expansion push plate drives the trigger frame to move through the synchronization rod, and the upward movement of the trigger frame drives the lifting frame to move synchronously, or the water cooler is blocked, causing the water in the water inlet pipe to continue to decrease. Under the pulling force of the upward pull spring, the rebound block is pulled upward, and the rebound block drives the rebound frame to move upward and drives the lifting frame to move synchronously; S2, the trigger frame moves the squeeze alarm switch and the emergency stop switch, so that the water cooler and the welding host are shut down in time, and the alarm light is turned on for warning; S3, the lifting frame moves up and away from the closing plate, and under the resilience of the torsion spring, the two closing plates are driven to rotate, and the water-passing frame is opened, so that the two switching boxes transfer the water in the auxiliary water tank to the switching pipe, and then enter the water inlet pipe through the switching pipe for cooling; S4. When using a microscope, the user's head presses the push pad, so that the push pad drives the push gear frame to move, and the movement of the push gear frame drives the driving gear to rotate, so that the driving gear drives the rotating frame to rotate, and the rotating frame drives the transverse frame to move through the driving shaft, and the movement of the transverse frame drives the protective plate to move, so that the laser transmitter head is exposed for use. After use, the protective plate automatically closes and protects the laser transmitter head.

[0015] The beneficial effects of a mold laser welding device and a welding method proposed by the present invention are: In the present invention, through the arrangement of the auxiliary water tank and the auxiliary switching mechanism, when the welding host is welding through the laser transmitter head, if the water cooler fails and the cooling effect decreases, the water temperature in the water inlet pipe continues to rise, so that the temperature of the closed box continues to rise, and then the air in the closed box expands due to the heat and pushes the expansion push plate to move. The expansion push plate drives the trigger frame to move through the synchronization rod, and drives the retraction spring to be stretched. The trigger frame moves and squeezes the alarm switch and the emergency stop switch, so that the water cooler and the welding host are shut down in time, and the alarm light is started at the same time for warning. The lifting frame moves up and moves synchronously with the lifting frame. The lifting frame moves up and separates from the closed plate. At this time, under the rebound force of the torsion spring, the rotating shaft is helped to rotate, and the two closed plates are driven to rotate, so that the two switching boxes transport the water in the auxiliary water tank to the switching pipe, and enter the water inlet pipe through the switching pipe, which helps the welding host to perform auxiliary cooling and avoids the problem of overheating of the welding host.

[0016] Furthermore, in the present invention, through the setting of the water shortage switching mechanism, during the use of the water cooler, if blockage occurs, the water in the water inlet pipe will continue to decrease. At this time, under the pulling force of the upper pull spring, the rebound block is pulled upward, and then the rebound block drives the rebound frame to move. The rebound frame moves upward, so that the rebound frame is separated from the closing plate, and then under the rebound force of the torsion spring, the rotating shaft drives the two closing plates to rotate, and the water frame is no longer closed, so that the water in the auxiliary water tank is transported into the water inlet pipe, which can also help the welding host to perform auxiliary cooling and avoid the problem of overheating of the welding host.

[0017] Furthermore, in the present invention, through the setting of the automatic protection mechanism, when using the microscope, the user's head presses the push pad, so that the push pad drives the push gear rack to move, and the movement of the push gear rack drives the driving gear to rotate, so that the driving gear drives the rotating frame to rotate, and the rotating frame drives the transverse frame to move through the driving shaft, and the movement of the transverse frame drives the protective plate to move, so that the laser transmitter head can be exposed for use; after use, the laser transmitter head can be automatically closed by the protective plate to avoid accidental injury to the staff when the laser transmitter head is used, or the laser transmitter head is damaged by collision, thereby ensuring the safe use of the laser transmitter head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a mold laser welding device provided by an embodiment of the present invention; Figure 2 A schematic diagram of the back structure of a mold laser welding device provided by an embodiment of the present invention; Figure 3 A schematic structural diagram of a mold laser welding device provided by an embodiment of the present invention, showing a closed box connected to an amplifying tube and other structures; Figure 4 A schematic diagram of a partial structure of a mold laser welding device provided by an embodiment of the present invention, wherein a closed box and a switching tube and other structures are connected; Figure 5 A schematic diagram of the structure of a switching box and a lifting frame and other structures of a mold laser welding device provided by an embodiment of the present invention; Figure 6 A mold laser welding device provided in an embodiment of the present invention Figure 3 Schematic diagram of the structure of part A; Figure 7 A partial cross-sectional structural schematic diagram of a mold laser welding device provided by an embodiment of the present invention, wherein a closing box and a switching box and other structures are connected; Figure 8 A partial cross-sectional structural schematic diagram of the connection between a closing plate and a mounting seat and other structures of a mold laser welding device provided by an embodiment of the present invention; Fig. 9 A schematic diagram of the structure of the connection between a protective plate and a mounting frame and other structures of a mold laser welding device provided by an embodiment of the present invention; Fig.10 A schematic structural diagram of the connection between a transverse frame and a driving shaft and other structures of a mold laser welding device provided in an embodiment of the present invention.

[0019] In the figure: 1-welding host; 2-laser transmitter; 3-microscope; 4-operating table; 5-water cooler; 6-auxiliary water tank; 7-auxiliary switching mechanism; 701-closing box; 702-switching box; 703-switching tube; 704-expansion push plate; 705-synchronizing rod; 706-trigger frame; 707-retraction spring; 708-water rack; 709-closing plate; 710-mounting seat; 711-torsion groove; 712-rotating shaft; 713-torsion spring; 714-lifting frame; 715-alarm light; 716-alarm switch ;8-water shortage switching mechanism;801-amplifying tube;802-rebound frame;803-rebound groove;804-rebound block;805-pull-up spring;806-limit rod;807-support shaft;9-automatic protection mechanism;901-protection plate;902-mounting frame;903-transverse frame;904-rotating frame;905-driving gear;906-driving groove;907-driving shaft;908-pushing gear frame;909-pushing pad;910-reset spring;10-return pipe;11-water inlet pipe;12-emergency stop switch. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In addition, in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical", "perpendicular" and the like do not mean that the components are required to be absolutely vertical, but can be slightly tilted. For example, "vertical" only means that its direction is more vertical than "horizontal", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to the attached manual Figure 1-10 A mold laser welding device provided by an embodiment of the present invention includes a welding host 1 and a water cooler 5 and an operating table 4 connected to the welding host 1. A laser transmitter 2 is installed on the welding host 1, and a microscope 3 is installed on the laser transmitter 2. The laser transmitter 2 is located above the operating table 4. A return pipe 10 and a water inlet pipe 11 are connected between the welding host 1 and the water cooler 5. An emergency stop switch 12 is installed on one side of the water cooler 5. The welding host 1 and the water cooler 5 are both electrically connected to the emergency stop switch 12.

[0027] For further information, please refer to the attached manual. Figure 3-8The embodiment of the present invention provides a mold laser welding device, which also includes an auxiliary water tank 6, which is installed on one side of the water cooler 5, and an auxiliary switching mechanism 7 is installed on the auxiliary water tank 6. The water inlet pipe 11 is connected to the auxiliary switching mechanism 7, and the auxiliary switching mechanism 7 is used to transport the cold water in the auxiliary water tank 6 to the water inlet pipe 11; the auxiliary switching mechanism 7 includes a closed box 701, which is installed on the water inlet pipe 11, and two switching boxes 702 are installed on the bottom side of the auxiliary water tank 6, and the two switching boxes 702 are connected There is a switching tube 703, and the two switching tubes 703 are both connected to the water inlet pipe 11. The two switching boxes 702 are both rotatably installed with a closing plate 709 for closing the switching box 702. An expansion push plate 704 is movably installed in the closing box 701. A synchronization rod 705 is installed on the top side of the expansion push plate 704. A trigger frame 706 is installed on the top of the synchronization rod 705. A lifting frame 714 is installed on the trigger frame 706. The lifting frame 714 is movably installed on a switching box 702, and the lifting frame 714 is used to block the closing plate 709.

[0028] It should be noted that, in the embodiment of the present invention, when the welding host 1 is welding, the water cooler 5 fails, causing the cooling effect to decrease. At this time, the outlet water temperature of the water cooler 5 continues to rise, causing the temperature in the closed box 701 to continue to rise, thereby causing the air in the closed box 701 to expand due to the heat and push the expansion push plate 704 to move. The expansion push plate 704 drives the trigger frame 706 to move through the synchronization rod 705. The trigger frame 706 moves to squeeze the alarm switch 716 and the emergency stop switch 12, so that the water cooler 5 and the welding host 1 are closed in time, and when the trigger frame 706 moves up, it simultaneously drives the lifting frame 714 to move. The lifting frame 714 moves up and separates from the closed plate 709, so that the two switching boxes 702 transport the water in the auxiliary water tank 6 to the switching pipe 703, and enters the water inlet pipe 11 through the switching pipe 703, helping the welding host 1 to perform auxiliary cooling and avoid the problem of overheating of the welding host 1.

[0029] More specifically, in the embodiment of the present invention, a water shortage switching mechanism 8 is further included. The water shortage switching mechanism 8 is installed on the water inlet pipe 11. The water shortage switching mechanism 8 is used to transport the cold water in the auxiliary water tank 6 to the water inlet pipe 11. The water shortage switching mechanism 8 includes an amplifying tube 801. The amplifying tube 801 is connected to the water inlet pipe 11. A rebound frame 802 is installed on the bottom side of the amplifying tube 801. The rebound frame 802 is movably installed on one side of the closed box 701. The rebound frame 802 is used to block the corresponding closed plate 709 in another switching box 702. The rebound frame 802 is connected to the lifting frame 714. It should be noted that in the embodiment of the present invention, when the water chiller 5 is blocked and the water output is reduced, the amount of water in the amplifying tube 801 continues to decrease, thereby causing the rebound frame 802 to move up, so that the closed plate 709 is unlocked, thereby achieving the purpose of auxiliary water inlet.

[0030] Please continue to refer to the instruction manual Figure 3-8 Furthermore, in a mold laser welding device provided by an embodiment of the present invention, the auxiliary switching mechanism 7 further includes two water racks 708, the two water racks 708 are respectively installed in two switching boxes 702, and the two closing plates 709 are respectively used to close the two water racks 708; In addition, mounting seats 710 are installed on the inner walls of the two switching boxes 702 on the side away from each other, and torsion grooves 711 are opened on the two mounting seats 710. Rotating shafts 712 are rotatably installed in the two torsion grooves 711. The two closing plates 709 are installed on the rotating shafts 712. A torsion spring 713 is installed on the inner wall of the torsion groove 711, and the other end of the torsion spring 713 is installed on the inner wall of the torsion groove 711. It should be noted that, in the embodiment of the present invention, when the temperature of the closed box 701 continues to rise, the air in the closed box 701 is heated and expanded, and pushes the expansion push plate 704 to move. The expansion push plate 704 drives the trigger frame 706 to move through the synchronization rod 705, and then drives the lifting frame 714 to move. The lifting frame 714 moves up and disengages from the closed plate 709. At this time, under the rebound force of the torsion spring 713, the rotating shaft 712 is helped to rotate, and the two closed plates 709 are driven to rotate, so that the two switching boxes 702 transport the water in the auxiliary water tank 6 to the switching pipe 703, and enter the water inlet pipe 11 through the switching pipe 703, which helps the welding host 1 to perform auxiliary cooling and avoids the problem of overheating of the welding host 1.

[0031] More specifically, in the embodiment of the present invention, a retraction spring 707 is connected between the closed box 701 and the trigger frame 706, and the retraction spring 707 is used to pull the trigger frame 706 to reset; one side of the trigger frame 706 is arranged in an arc shape, and the trigger frame 706 is in contact with the emergency stop switch 12. It should be noted that in the embodiment of the present invention, when the closed box 701 is overheated so that the air in the closed box 701 expands due to heat, the expansion push plate 704 is pushed up, so that the expansion push plate 704 drives the trigger frame 706 to move through the synchronization rod 705, and drives the retraction spring 707 to stretch, so that the trigger frame 706 squeezes the emergency stop switch 12, and the purpose of automatic emergency stop is achieved.

[0032] Please continue to refer to the instruction manual Figure 3-8, more specifically, in the embodiment of the present invention, an alarm switch 716 is installed on one side of the water cooler 5, an alarm light 715 is installed on the top side of the auxiliary water tank 6, the alarm light 715 is electrically connected to the alarm switch 716, and the trigger frame 706 moves up to trigger the alarm switch 716 and the emergency stop switch 12. It should be noted that in the embodiment of the present invention, when the water cooler 5 has refrigeration failure or water shortage, the trigger frame 706 moves up to trigger the alarm switch 716 and the emergency stop switch 12, so that the alarm light 715 sounds an alarm, and the welding host 1 is turned off to avoid the problem of overheating and damage of the welding host 1, and remind the staff to deal with it in time.

[0033] For further information, please refer to the attached manual. Figure 5-6 In a mold laser welding device provided by an embodiment of the present invention, the water shortage switching mechanism 8 further includes a limit rod 806, a support shaft 807 is installed on the top side of the switching box 702, the limit rod 806 is rotatably installed on the support shaft 807, and the limit rod 806 is rotated to block the rebound frame 802. It should be noted that in the embodiment of the present invention, when the water cooler 5 stops working, the limit rod 806 is rotated to block the rebound frame 802, so that the closing plate 709 remains in a closed state.

[0034] More specifically, in the embodiment of the present invention, a rebound groove 803 is provided on one side of the closed box 701, a rebound block 804 is slidably installed in the rebound groove 803, and the rebound block 804 is installed on the rebound frame 802; in addition, a pull-up spring 805 is installed on the inner wall of the rebound groove 803, and the other end of the pull-up spring 805 is installed on the rebound block 804. It should be noted that in the embodiment of the present invention, when the rebound frame 802 moves, the rebound block 804 slides along the rebound groove 803, and the pull-up spring 805 is stressed. Therefore, when there is a lack of water, the rebound frame 802 is driven to move upward by the pull-back force of the pull-up spring 805.

[0035] For further information, please refer to the attached manual. Figure 9-10 A mold laser welding device provided in an embodiment of the present invention further includes an automatic protection mechanism 9, which is installed on the laser emitting head 2 and is used to close the laser emitting head 2; specifically, the automatic protection mechanism 9 includes a protection plate 901, which is used to close the laser emitting head 2, a mounting frame 902 is installed on one side of the laser emitting head 2, a traverse frame 903 is slidably installed on one side of the mounting frame 902, and the protection plate 901 is installed on the traverse frame 903. It should be noted that in the embodiment of the present invention, when welding is performed, the protection plate 901 slides automatically, thereby exposing the laser emitting head 2 for use, and when welding is stopped, the protection plate 901 is automatically reset to achieve the purpose of automatically closing and protecting the laser emitting head 2.

[0036] Please continue to refer to the instruction manual Figure 9-10, more specifically, in the embodiment of the present invention, a rotating frame 904 is rotatably mounted on one side of the mounting frame 902, and two driving shafts 907 are mounted on the rotating frame 904; in addition, a driving groove 906 is provided on the transverse frame 903, and one driving shaft 907 is movably mounted in the driving groove 906, and the other driving shaft 907 is rotatably mounted on the mounting frame 902. It should be noted that in the embodiment of the present invention, when the gear rack 908 is pushed to move and drive the driving gear 905 to rotate, the driving gear 905 drives the rotating frame 904 to rotate, and the rotating frame 904 rotates on the mounting frame 902 through a driving shaft 907, and at the same time, the rotating frame 904 rotates and drives the transverse frame 903 to move through another driving shaft 907, thereby achieving the purpose of driving the transverse frame 903 to move when the rotating frame 904 rotates.

[0037] Please refer to the instruction manual Figure 1-10 , further specifically, in the embodiment of the present invention, a driving gear 905 is installed on one side of the rotating frame 904, and a pushing gear frame 908 is slidably installed on one side of the mounting frame 902, and the pushing gear frame 908 is meshed with the driving gear 905; In addition, a push pad 909 is installed on the top side of the push gear rack 908, and the push pad 909 is made of silicone material. A reset spring 910 is installed on the push gear rack 908, and the other end of the reset spring 910 is installed on the inner wall of the mounting frame 902. It should be noted that in the embodiment of the present invention, when welding, the user's head presses the push pad 909, so that the push pad 909 drives the push gear rack 908 to move, and the push gear rack 908 moves in the mounting frame 902, and drives the reset spring 910 to be stressed, and the push gear rack 908 moves to drive the driving gear 905 to rotate, so that the driving gear 905 drives the rotating frame 904 to rotate, and then the protective plate 901 moves, so that the laser transmitter head 2 can be exposed for use; similarly, after use, under the reaction force of the reset spring 910, the protective plate 901 automatically closes the laser transmitter head 2 to protect the laser transmitter head 2.

[0038] In summary, the working principle of a mold laser welding device provided by an embodiment of the present invention, that is, the welding method using the mold laser welding device of the embodiment of the present invention is: When the welding host 1 is welding through the laser transmitting head 2, the water cooler 5 transports cold water to the welding host 1 through the water inlet pipe 11 for heat dissipation. The hot water after heat dissipation returns to the water cooler 5 through the return pipe 10 for cooling. The water cooler 5 is prone to failure during long-term use. When the water cooler 5 fails and the cooling effect decreases, the water temperature in the water inlet pipe 11 continues to rise, causing the temperature of the closed box 701 to continue to rise, thereby causing the air in the closed box 701 to expand due to the heat and push the expansion push plate 704 to move. The expansion push plate 704 drives the trigger frame 706 to move through the synchronization rod 705, and drives the retraction spring 707 to be stretched, triggering The frame 706 moves to squeeze the alarm switch 716 and the emergency stop switch 12, so that the water cooler 5 and the welding host 1 are shut down in time, and the alarm light 715 is started for warning, and the lifting frame 714 is synchronously driven to move when the trigger frame 706 moves up, and the lifting frame 714 moves up and separates from the closing plate 709. At this time, under the resilience of the torsion spring 713, the rotary shaft 712 is helped to rotate, and the two closing plates 709 are driven to rotate, so that the two switching boxes 702 transport the water in the auxiliary water tank 6 to the switching pipe 703, and enter the water inlet pipe 11 through the switching pipe 703, so as to help the welding host 1 to perform auxiliary cooling and avoid the problem of overheating of the welding host 1; Furthermore, when the water cooler 5 is started, the water inlet pipe 11 transports the cold water in the water cooler 5 to the welding main machine 1, so that the amplifying tube 801 on the water inlet pipe 11 is filled with cold water, thereby causing the rebound frame 802 to sink under force. At this time, the limit rod 806 is rotated to separate the limit rod 806 from the rebound frame 802. Therefore, during the use of the water cooler 5, if a blockage occurs, the water in the water inlet pipe 11 continues to decrease. At this time, under the pulling force of the pull-up spring 805, the rebound block 804 is pulled upward. The rebound block 804 slides vertically in the rebound groove 803, so that the rebound block 804 drives the rebound frame 802 to move, and the rebound frame 802 moves up, so that the rebound frame 802 is separated from the closing plate 709, and then under the rebound force of the torsion spring 713, the rotary shaft 712 drives the two closing plates 709 to rotate, and the water-passing frame 708 is no longer closed, so that the water in the auxiliary water tank 6 is transported into the water inlet pipe 11, which can also help the welding host 1 to perform auxiliary cooling and avoid the problem of overheating of the welding host 1; Furthermore, when using the microscope 3, the user's head presses the push pad 909, so that the push pad 909 drives the push gear rack 908 to move, and the gear rack 908 moves in the mounting frame 902, and drives the reset spring 910 to be subjected to force, so as to drive the gear rack 908 to move and drive the driving gear 905 to rotate, so that the driving gear 905 drives the rotating frame 904 to rotate, and the rotating frame 904 drives the transverse frame 903 to move through the driving shaft 907, and the movement of the transverse frame 903 drives the protective plate 901 to move, so that the laser transmitter head 2 can be exposed for use. After use, the laser transmitter head 2 can be automatically closed by the protective plate 901 to avoid accidental damage to the staff when the laser transmitter head 2 is not in use, or the laser transmitter head 2 is damaged by collision, thereby ensuring the safe use of the laser transmitter head 2.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mold laser welding device, characterized in that: It includes a welding host, a water cooler and an operating table connected to the welding host, a laser transmitter head installed on the welding host, a microscope installed on the laser transmitter head, the laser transmitter head is located above the operating table, a return pipe and a water inlet pipe are connected between the welding host and the water cooler, an emergency stop switch is installed on one side of the water cooler, and the welding host and the water cooler are both electrically connected to the emergency stop switch; It also includes an auxiliary water tank, the auxiliary water tank is installed on one side of the water cooler, an auxiliary switching mechanism is installed on the auxiliary water tank, the water inlet pipe is connected to the auxiliary switching mechanism, and the auxiliary switching mechanism is used to transport the cold water in the auxiliary water tank to the water inlet pipe; the auxiliary switching mechanism includes a closing box, the closing box is installed on the water inlet pipe, two switching boxes are installed on the bottom side of the auxiliary water tank, the two switching boxes are connected to a switching pipe, the two switching pipes are connected to the water inlet pipe, and closing plates for closing the switching boxes are rotatably installed in the two switching boxes, an expansion push plate is movably installed in the closing box, a synchronization rod is installed on the top side of the expansion push plate, a trigger frame is installed on the top of the synchronization rod, a lifting frame is installed on the trigger frame, the lifting frame is movably installed on one of the switching boxes, and the lifting frame is used to block the closing plate; It also includes a water shortage switching mechanism, which is installed on the water inlet pipe and is used to transport the cold water in the auxiliary water tank to the water inlet pipe; the water shortage switching mechanism includes an amplifying tube, which is connected to the water inlet pipe, and a rebound frame is installed on the bottom side of the amplifying tube, which is movably installed on one side of the closed box, and is used to block the corresponding closed plate in another switching box, and the rebound frame is connected to the lifting frame.

2. A mold laser welding device according to claim 1, characterized in that: The auxiliary switching mechanism further comprises two water-passing racks, which are respectively installed in the two switching boxes, and the two closing plates are respectively used to close the two water-passing racks; A mounting seat is installed on the inner wall of the two switching boxes on the side away from each other, and a torsion groove is opened on the two mounting seats. A rotating shaft is rotatably installed in the two torsion grooves, and the two closing plates are installed on the rotating shaft. A torsion spring is installed on the inner wall of the torsion groove, and the other end of the torsion spring is installed on the inner wall of the torsion groove.

3. A mold laser welding device according to claim 2, characterized in that: A retraction spring is connected between the closed box and the trigger frame, and the retraction spring is used to pull the trigger frame to reset; One side of the trigger frame is arranged in an arc shape, and the trigger frame is in contact with the emergency stop switch.

4. A mold laser welding device according to claim 3, characterized in that: An alarm switch is installed on one side of the water cooler, an alarm light is installed on the top side of the auxiliary water tank, the alarm light is electrically connected to the alarm switch, and the trigger frame moves upward to trigger the alarm switch and the emergency stop switch.

5. A mold laser welding device according to claim 1, characterized in that: The water shortage switching mechanism also includes a limit rod. A support shaft is installed on the top side of the switching box. The limit rod is rotatably installed on the support shaft. The limit rod is rotated to block the rebound frame.

6. A mold laser welding device according to claim 5, characterized in that: A rebound groove is provided on one side of the closed box, a rebound block is slidably installed in the rebound groove, and the rebound block is installed on the rebound frame; A pull-up spring is installed on the inner wall of the rebound groove, and the other end of the pull-up spring is installed on the rebound block.

7. A mold laser welding device according to claim 1, characterized in that: It also includes an automatic protection mechanism, which is installed on the laser emitting head and is used to close the laser emitting head; The automatic protection mechanism comprises a protection plate, which is used to close the laser emitting head. A mounting frame is installed on one side of the laser emitting head, a transverse frame is slidably installed on one side of the mounting frame, and the protection plate is installed on the transverse frame.

8. A mold laser welding device according to claim 7, characterized in that: A rotating frame is rotatably mounted on one side of the mounting frame, and two driving shafts are mounted on the rotating frame; A driving groove is provided on the transverse moving frame, one driving shaft is movably installed in the driving groove, and the other driving shaft is rotatably installed on the mounting frame.

9. A mold laser welding device according to claim 8, characterized in that: A driving gear is installed on one side of the rotating frame, and a pushing gear rack is slidably installed on one side of the mounting frame, and the pushing gear rack is meshed with the driving gear; A push pad is installed on the top side of the pushing gear frame, and the push pad is made of silicone material. A return spring is installed on the pushing gear frame, and the other end of the return spring is installed on the inner wall of the mounting frame.

10. A mold laser welding method, which is performed according to the mold laser welding device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When the water cooler fails and the cooling effect decreases, the water temperature in the water inlet pipe continues to rise, causing the temperature of the closed box to continue to rise, and then the air in the closed box expands due to the heat and pushes the expansion push plate to move. The expansion push plate drives the trigger frame to move through the synchronization rod, and the upward movement of the trigger frame drives the lifting frame to move synchronously, or the water cooler is blocked, causing the water in the water inlet pipe to continue to decrease. Under the pulling force of the upward spring, the rebound block is pulled upward, and the rebound block drives the rebound frame to move upward and drives the lifting frame to move synchronously; S2, the trigger frame moves the squeeze alarm switch and the emergency stop switch, so that the water cooler and the welding host are shut down in time, and the alarm light is turned on for warning; S3, the lifting frame moves up and away from the closing plate, and under the resilience of the torsion spring, the two closing plates are driven to rotate, and the water-passing frame is opened, so that the two switching boxes transfer the water in the auxiliary water tank to the switching pipe, and then enter the water inlet pipe through the switching pipe for cooling; S4. When using a microscope, the user's head presses the push pad, so that the push pad drives the push gear frame to move, and the movement of the push gear frame drives the driving gear to rotate, so that the driving gear drives the rotating frame to rotate, and the rotating frame drives the transverse frame to move through the driving shaft, and the movement of the transverse frame drives the protective plate to move, so that the laser transmitter head is exposed for use. After use, the protective plate automatically closes and protects the laser transmitter head.

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