Jewelry micro-welding equipment and method thereof

Abstract

The invention relates to the technical field of welding, and discloses jewelry micro-welding equipment and a method thereof.The jewelry micro-welding equipment comprises a machine body used for jewelry welding, a welding bin and a laser welding head, the welding bin and the laser welding head are installed on the machine body, the laser welding head is used for welding jewelry in the welding bin, and a microscope used for jewelry welding observation is installed on the machine body; the laser welding device is characterized in that a laser emitting end of the laser welding head is provided with a protection head for spraying gas, and the protection head sprays inert gas to empty air at a welding position. The protection head and the adjusting head work cooperatively, and a powerful and uniform inert gas protection layer can be formed around the welding position. The protection head exhausts inert gas from the upper portion, the adjusting head exhausts inert gas from the lower portion, and the inert gas is headed at the same speed and counteracts airflow impact force mutually, so that air at the welding position is emptied, the jewelry is prevented from being oxidized and discolored with oxygen and the like in the welding process, and the surface is prevented from being oxidized and discolored.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a jewelry micro welding device and a method thereof. Background Art

[0002] Jewelry micro welding equipment is a professional equipment used for jewelry processing. It is mainly used in the field of fine jewelry making and repair. Jewelry micro welding equipment uses the principle of welding technology. It usually generates high heat through a laser energy source to melt the connection parts of jewelry materials (such as gold, silver, platinum and other metals), and then cools and solidifies, so as to firmly connect the various parts together. Unlike ordinary welding equipment, it is equipped with a microscope. The microscope can magnify the welding part, allowing the operator to clearly see the fine structure and welding points of the jewelry, so that very delicate operations can be performed to ensure the accuracy and quality of welding.

[0003] At present, jewelry is very easy to undergo oxidation reaction with oxygen in the air during welding, causing the surface of the jewelry to change color, seriously affecting the appearance quality and commercial value of the jewelry. The high temperature generated by the laser ionizes the material on the surface of the material to form an ion layer. The ion layer can absorb part of the laser energy, resulting in a reduction in the effective laser energy reaching the welding molten pool. This is like adding an absorption layer in the optical path, reducing the utilization rate of the laser. On the other hand, the existence of the ion layer may also cause the laser energy to scatter in a local area, change the energy distribution of the laser, and affect the shape and size of the molten pool. To this end, the present invention provides a jewelry micro welding device and method. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a jewelry micro-welding device and method thereof, which uses two mutually offset inert gases to evacuate the air at the welding position and blow away the ion layer, thereby enhancing the welding effect.

[0005] The present invention provides the following technical solution: a jewelry micro welding device, comprising a body for jewelry welding, a welding chamber and a laser welding head installed on the body, wherein the laser welding head welds the jewelry in the welding chamber, and a microscope for jewelry welding observation is installed on the body, characterized in that: a protective head for spraying gas is installed at the laser emitting end of the laser welding head, and the protective head sprays inert gas to exhaust the air at the welding position;

[0006] An adjusting head is installed at the bottom of the welding chamber, and the adjusting head is located directly below the laser welding head. The inert gas is sprayed together by the adjusting head and the protective head, so that the inert gas impacts each other at the same speed, offsets the impact force of the airflow, and diffuses the inert gas to exhaust the air at the welding position;

[0007] A solenoid valve A is installed on the pipeline connected to the protective head, and the release of the inert gas on the protective head is controlled by the solenoid valve A;

[0008] The regulating head extends to the inside of the machine body through a pipeline and is installed on the B solenoid valve. The release of the inert gas on the regulating head is controlled by the B solenoid valve. An atomizer is provided inside the machine body, and the atomizer is connected to the pipeline connected to the regulating head through a pipeline, so that the inert gas carries atomized water out during the release process, so that the welding output is cooled by the atomized water after welding, and the regulating head can control the on and off of the A solenoid valve, the B solenoid valve and the atomizer.

[0009] Preferably, the protective head includes a metal sleeve connected to the laser welding head, a threaded bin is installed on the top of the metal sleeve, and the metal sleeve is connected to the laser welding head through the inner wall threads of the threaded bin, an air guide port extending to the inside of the threaded bin is installed on the outside of the metal sleeve, a light outlet for laser passing is provided in the middle of the metal sleeve, and a plurality of exhaust ports distributed around the light outlet are opened on the metal sleeve, and inert gas is discharged through the plurality of exhaust ports.

[0010] Preferably, the top end of the light outlet is pressed against the laser emitting end of the laser welding head through a sealing ring, so that the inert gas is discharged from a plurality of exhaust ports.

[0011] Preferably, the protective head also includes an annular groove formed on the side of the metal sleeve, and a wiring groove distributed around the surface of the annular groove is formed, a heat dissipation pipe is laid in the wiring groove, the annular groove on the side of the protective head is connected by two semicircular rings, and one end of the heat dissipation pipe is connected to the air guide port through a pipeline, and the other end of the heat dissipation pipe extends into the threaded bin, so that the inert gas is introduced into the threaded bin through the air guide port and discharged through the exhaust port, carrying the heat of the metal sleeve, and at the same time, the inert gas introduced by the air guide port is introduced into the heat dissipation pipe to cool the side of the metal sleeve, and finally the inert gas is introduced into the threaded bin.

[0012] Preferably, the adjusting head includes a positioning sleeve installed at the bottom of the welding bin, the bottom of the side of the positioning sleeve is connected to a side connecting pipe extending to the inside of the machine body, the top of the positioning sleeve extends to the inside of the welding bin and is provided with a rotatable internal threaded ring, a movable threaded tube is provided in the positioning sleeve, a piston is installed on the outside of the bottom end of the threaded tube, the threaded tube slides on the inner wall of the positioning sleeve through the piston, a rotatable positioning head is provided at the top of the positioning sleeve, and a plurality of groups of air holes for inert gas discharge are provided on the positioning head, and an anti-torque structure is provided inside the threaded tube.

[0013] Preferably, the anti-torque structure includes a bracket installed inside the positioning sleeve, the top end of the threaded tube is rotatably connected to the positioning head through an axis core, a spline shaft is installed at the bottom end of the bracket, a slidable sleeve is provided at the bottom end of the spline shaft, and the bottom end of the sleeve is connected to the bottom end of the positioning sleeve.

[0014] Preferably, the top end of the threaded tube is provided with two A contacts L, two B contacts L, two C contacts L and two D contacts L distributed in a circular array, and the two A contacts L, two B contacts L and two C contacts L are extended to the inside of the body through wires, and the bottom end of the positioning head is equipped with two E contacts L, and the two E contacts L are connected by wires.

[0015] Preferably, two symmetrically distributed notches are provided at the bottom end of the positioning head, and the two E contacts L slide up and down in the two notches.

[0016] Preferably, the A contact L, B contact L, C contact L, D contact L and E contact L are all made of magnetic conductive materials;

[0017] When the two E contacts L come into contact with the two A contacts L, the atomizer and the B solenoid valve are energized, and the inert gas containing water mist is released from the regulating head to cool the jewelry;

[0018] When the two E contacts L come into contact with the two B contacts L, the A solenoid valve and the B solenoid valve are energized, and the protective head and the regulating head jointly discharge the inert gas, providing gas protection from the upper and lower parts of the jewelry, thereby increasing the gas coverage area;

[0019] When the two E contacts L come into contact with the two C contacts L, the B solenoid valve is energized, and the inert gas is released from the regulating head, which protects the jewelry from below and reduces the amount of inert gas released;

[0020] When the two E contacts L come into contact with the two D contacts L, the A solenoid valve, the B solenoid valve and the atomizer all stop running.

[0021] A jewelry micro-welding method, the specific operation is as follows:

[0022] S1. During the jewelry welding process, the regulating head is adjusted to open the A solenoid valve and the B solenoid valve, and the protective head and the regulating head jointly discharge the inert gas. The jewelry is welded under the inert gas cover. After welding, the regulating head is adjusted again to open the atomizer and the B solenoid valve. The regulating head releases the inert gas containing water mist to cool the jewelry.

[0023] S2. The B solenoid valve can be opened separately through the adjusting head to release the inert gas from the adjusting head, and the jewelry can be protected from the bottom by gas to reduce the amount of inert gas released. At the same time, the A solenoid valve, the B solenoid valve and the atomizer can be closed at the same time through the adjusting head.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The protective head and the adjusting head work together to form a strong and uniform inert gas protective layer around the welding position. The protective head discharges inert gas from the top, and the adjusting head discharges inert gas from the bottom, and they collide with each other at the same speed to offset the impact of the airflow. This not only evacuates the air at the welding position to prevent the jewelry from oxidizing with oxygen during welding and preventing surface oxidation and discoloration, but also increases the gas coverage area, destroys the ion layer, ensures that the welding process is not disturbed by the outside air, and greatly improves the welding quality.

[0026] (2) The unique design of the protective head, such as the exhaust port design and the ring groove on the side of the metal sleeve and the laying of the heat dissipation pipe, uses the introduced inert gas to cool the metal sleeve. During continuous welding operations, it can effectively reduce the high temperature generated by the laser irradiation of the protective head, ensure its normal operation and service life, reduce equipment failures caused by overheating, and improve the stability of the equipment.

[0027] (3) The height adjustment design of the head makes it easier to place the jewelry on the welding rod during welding to avoid shaking when holding it. By rotating the adjustment head, a variety of gas protection and cooling functions can be achieved. For example, the gas coverage can be strengthened during welding; the jewelry can be cooled after welding; and the amount of inert gas released can be reduced according to the special requirements for the amount of inert gas used to meet the needs of different jewelry welding processes. It has strong flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the laser welding head and welding chamber of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the protective head of the present invention;

[0031] Figure 4 For the present invention Figure 3 Schematic diagram of the split structure;

[0032] Figure 5 It is a structural schematic diagram of the regulating head of the present invention;

[0033] Figure 6 It is a schematic diagram of the split structure of the regulating head of the present invention;

[0034] Figure 7 This is a schematic diagram of the anti-torque structure of the present invention;

[0035] Figure 8 This is a schematic diagram of the positioning head structure of the present invention;

[0036] Fig. 9 It is a schematic diagram of the structure of the threaded pipe end of the present invention;

[0037] Fig.10 It is a schematic diagram of the circuit connection structure of the present invention.

[0038] In the figure: 1. body; 2. welding chamber; 3. laser welding head; 4. microscope; 5. protective head; 6. adjustment head; 7. A solenoid valve; 8. B solenoid valve; 9. atomizer; 51. metal sleeve; 52. threaded chamber; 53. air guide port; 54. light outlet; 55. exhaust port; 56. ring groove; 57. heat dissipation pipe; 58. semicircular ring; 61. positioning sleeve; 62. side connecting pipe; 63. internal thread ring; 64. threaded pipe; 65. piston; 66. positioning head; 67. air hole; 68. anti-torque structure; 681. bracket; 682. spline shaft; 683. sleeve; L1. A contact; L2. B contact; L3. C contact; L4. D contact; L0. E contact. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of known functions and known components to avoid unnecessary confusion of the concepts of the present invention.

[0040] See also Figure 1 and Figure 2 A jewelry micro welding device consists of a body 1, a welding chamber 2, a laser welding head 3, a microscope 4, a protective head 5, an adjustment head 6 and related control components such as an A solenoid valve 7, a B solenoid valve 8, an atomizer 9, etc.

[0041] The body 1, as the main body of the whole equipment, is made of high-strength and stable metal material, providing a solid installation foundation for other components. The welding chamber 2 is firmly installed on the body 1, and its internal space provides a special working area for jewelry welding operations, which can effectively prevent the strong light and spatter generated during the welding process from affecting the external environment. The laser welding head 3 is installed at a suitable position of the body 1 to ensure that the laser beam it emits can accurately irradiate the jewelry welding position in the welding chamber 2 to achieve high-quality welding operations. The microscope 4 is also installed on the body 1, which is convenient for the operator to observe the fine structure and welding parts of the jewelry in real time during the welding process to ensure the accuracy and quality of the welding.

[0042] See also Figure 3 and Figure 4 An A solenoid valve 7 is installed on the pipeline connected to the protective head 5, and the release of the inert gas on the protective head 5 is controlled by the A solenoid valve 7.

[0043] The protective head 5 includes a metal sleeve 51, a threaded bin 52, an air guide port 53, a light outlet 54, an exhaust port 55, an annular groove 56, a heat dissipation pipe 57 and a semicircular ring 58. The threaded bin 52 at the top of the metal sleeve 51 is tightly connected to the laser welding head 3 through the inner wall thread to ensure the stability and sealing of the connection. The air guide port 53 on the outside of the metal sleeve 51 extends to the inside of the threaded bin 52 to provide a channel for the introduction of inert gas. The light outlet 54 is located in the middle of the metal sleeve 51 to ensure that the laser can pass smoothly and act on the jewelry welding part. Several groups of exhaust ports 55 are evenly distributed around the light outlet 54, which are used to exhaust inert gas, so that the gas is discharged around the laser, the laser is covered, and the air outside the laser is emptied to avoid oxidation and discoloration of the jewelry surface during welding.

[0044] The annular groove 56 is provided on the side of the metal sleeve 51, and a heat dissipation pipe 57 is laid in the wiring groove distributed around the surface. The annular groove 56 on the side of the protective head 5 is connected by two semicircular rings 58, which plays a role in protecting and fixing the heat dissipation pipe 57. One end of the heat dissipation pipe 57 is connected to the air guide port 53 through a pipeline, and the other end extends into the threaded bin 52. When the inert gas is introduced from the air guide port 53, a part of it directly enters the threaded bin 52 and is discharged through the exhaust port 55. In this process, the inert gas can take away the heat generated by the laser irradiation of the metal sleeve 51. At the same time, another part of the inert gas enters the heat dissipation pipe 57, cools down the side of the metal sleeve 51, and is finally introduced into the threaded bin 52.

[0045] For example, during continuous welding operations, the continuous operation of the laser welding head 3 will cause the temperature of the protective head 5 to rise. At this time, the circulation of the inert gas in the heat dissipation pipe 57 can effectively reduce the temperature of the protective head 5, and the inert gas can also cool down through the exhaust port 55, thereby ensuring its normal operation and service life.

[0046] The top of the light outlet 54 is tightly pressed against the laser emitting end of the laser welding head 3 through a sealing ring, ensuring that the inert gas can only be discharged from a plurality of exhaust ports 55. When the A solenoid valve 7 is opened, the inert gas enters the protective head 5 from the air guide port 53, and is ejected at a certain flow rate through the exhaust port 55, exhausting the air around the welding position, forming an inert gas protection area, preventing the jewelry from oxidizing with oxygen in the air during the welding process, and improving the welding quality.

[0047] See also Figure 5 The regulating head 6 extends to the inside of the machine body 1 through a pipeline and is installed on the B solenoid valve 8. The release of the inert gas on the regulating head 6 is controlled by the B solenoid valve 8. An atomizer 9 is provided inside the machine body 1, and the atomizer 9 is connected to the pipeline connected to the regulating head 6 through a pipeline, so that the inert gas carries the atomized water out during the release process, so that the welding output is cooled by the atomized water after welding, and the regulating head 6 can control the on and off of the A solenoid valve 7, the B solenoid valve 8 and the atomizer 9.

[0048] See also Figure 6 The regulating head 6 includes a positioning sleeve 61, a side connecting pipe 62, an internal threaded ring 63, a threaded pipe 64, a piston 65, a positioning head 66, an air hole 67 and an anti-torque structure 68. The positioning sleeve 61 is installed at the bottom of the welding chamber 2, and the side connecting pipe 62 connected to the bottom of the side extends to the inside of the body 1, which is used to connect the external inert gas source and the atomizer 9. The top of the positioning sleeve 61 extends to the inside of the welding chamber 2 and is provided with a rotatable internal threaded ring 63. The threaded pipe 64 in the positioning sleeve 61 slides on its inner wall through the piston 65, and the piston 65 is installed on the outer side of the bottom end of the threaded pipe 64 to ensure the sealing of the gas channel. The top of the positioning sleeve 61 is provided with a rotatable positioning head 66, and the positioning head 66 is provided with a plurality of groups of air holes 67 for the discharge of inert gas. By rotating the internal threaded ring 63, the height of the threaded tube 64 can be adjusted, thereby adjusting the height of the positioning head 66. During the welding process, the jewelry can be placed on the positioning head 66 for welding, and the positioning head 66 can be used to prevent shaking during the holding process. If not needed, the positioning head 66 can be adjusted to the lowest position without affecting the welding.

[0049] See also Figure 7 The anti-torque structure 68 is composed of a bracket 681, a spline shaft 682 and a sleeve 683. The bracket 681 is installed inside the positioning sleeve 61, and the top of the threaded tube 64 is rotatably connected to the positioning head 66 through the shaft core. A spline shaft 682 is installed at the bottom end of the bracket 681, and a slidable sleeve 683 is provided at the bottom end of the spline shaft 682, and the bottom end of the sleeve 683 is connected to the bottom end of the positioning sleeve 61. When the threaded tube 64 moves up and down in the positioning sleeve 61, the anti-torque structure 68 can effectively prevent the threaded tube 64 from twisting, ensuring its stable operation. For example, during the adjustment process of the adjusting head 6, the lifting and lowering action of the threaded tube 64 may produce a twisting tendency due to uneven force, and the anti-torque structure 68 can eliminate this tendency and ensure the accuracy and stability of the adjustment.

[0050] Both the A solenoid valve 7 and the B solenoid valve 8 are direct-acting solenoid valves, and their working principle is that when the coil is energized, the electromagnetic coil generates electromagnetic force to lift the closing piece from the valve seat, and the valve opens; when the power is off, the electromagnetic force disappears, the spring presses the closing piece onto the valve seat, and the valve closes.

[0051] See also Figure 8 and Fig. 9, the top of the threaded tube 64 is provided with two A contacts L1, two B contacts L2, two C contacts L3 and two D contacts L4 distributed in a circular array, and the two A contacts L1, two B contacts L2 and two C contacts L3 are all extended to the inside of the body 1 through wires. Two E contacts L0 are installed at the bottom of the positioning head 66, and the two E contacts L0 are connected through wires. The bottom of the positioning head 66 is provided with two symmetrically distributed notches, and the two E contacts L0 slide up and down in the two notches. The A contact L1, the B contact L2, the C contact L3, the D contact L4 and the E contact L0 are all made of magnetic conductive materials. When the E contact L0 is adsorbed with the A contact L1, the B contact L2, the C contact L3 and the D contact L4, the circuit is turned on. When the positioning head 66 is rotated, the E contact L0 will contact different contacts, thereby realizing different control functions.

[0052] See also Fig.10 When the two E contacts L0 contact the two A contacts L1, the circuit is turned on, and the atomizer 9 and the B solenoid valve 8 are energized. At this time, the B solenoid valve 8 opens, and the inert gas enters the positioning sleeve 61 from the side connecting pipe 62, and is discharged through the threaded pipe 64 and the air hole 67 on the positioning head 66. At the same time, the atomizer 9 atomizes the water, so that the inert gas carries the atomized water during the release process, and cools the jewelry after welding.

[0053] When the two E contacts L0 are in contact with the two B contacts L2, the A solenoid valve 7 and the B solenoid valve 8 are energized at the same time. The protective head 5 and the regulating head 6 work at the same time, the protective head 5 discharges the inert gas from the top, and the regulating head 6 discharges the inert gas from the bottom. The inert gases collide with each other at the same speed, offsetting the impact of the airflow, forming a more uniform and powerful inert gas protective layer around the jewelry, strengthening the gas coverage area, and ensuring that the welding process is not disturbed by the outside air.

[0054] When the two E contacts L0 come into contact with the two C contacts L3, the B solenoid valve 8 is energized, and the regulating head 6 works alone to release inert gas from under the jewelry to protect the jewelry. This method is suitable for situations where there is a certain requirement for the amount of inert gas used and the amount of inert gas released needs to be reduced.

[0055] When the two E contacts L0 are in contact with the two D contacts L4, the circuits of the A solenoid valve 7, the B solenoid valve 8 and the atomizer 9 are cut off, and the equipment stops the corresponding gas discharge and atomization and cooling functions.

[0056] The invention can be provided with a gas recovery system to recover the released inert gas to avoid waste of the inert gas. At the same time, regulating valves need to be provided in the gas pipelines connecting the protective head 5 and the regulating head 6 in the inert gas release pipeline so that the gas flow rates discharged from the protective head 5 and the regulating head 6 are the same.

[0057] A jewelry micro-welding method, the specific operation is as follows:

[0058] Preparation before welding: Place the jewelry to be welded at a suitable position in the welding chamber 2, and adjust the observation angle through the microscope 4 to ensure that the welding part can be clearly observed. Check whether the connection of each component of the equipment is firm, whether the electrical circuit is normal, and whether the inert gas source is sufficient.

[0059] Welding process: adjust the adjustment head 6, rotate the positioning head 66, make the two E contacts L0 contact the two B contacts L2, and then the A solenoid valve 7 and the B solenoid valve 8 are opened. The protective head 5 exhausts the inert gas through the exhaust port 55 and the adjustment head 6 exhausts the inert gas through the air hole 67, forming an inert gas protection area around the welding position. Turn on the laser welding head 3, the worker holds the jewelry to move and perform welding operations, and the operator observes the welding situation in real time through the microscope 4 to ensure the welding quality.

[0060] After welding is completed, the adjusting head 6 is adjusted again, and the positioning head 66 is rotated to make the two E contacts L0 contact the two A contacts L1, and the atomizer 9 and the B solenoid valve 8 are opened. The inert gas containing water mist is released from the adjusting head 6 to cool down the jewelry after welding to prevent the jewelry from being deformed or changing in performance due to high temperature.

[0061] Flexible gas protection adjustment: In some cases where there are special requirements for the amount of inert gas, the positioning head 66 can be rotated separately through the adjusting head 6 to make the two E contacts L0 contact with the two C contacts L3. At this time, the B solenoid valve 8 is energized, and the inert gas is released from the adjusting head 6 to protect the jewelry from the bottom, reducing the amount of inert gas released. When the gas protection and cooling functions are not needed, the positioning head 66 is rotated to make the two E contacts L0 contact with the two D contacts L4, and the A solenoid valve 7, the B solenoid valve 8 and the atomizer 9 all stop running.

[0062] Through the above specific implementation methods, the jewelry micro welding equipment of the present invention can achieve efficient and high-quality jewelry welding operations. Through the synergistic effect of the protective head 5 and the adjustment head 6, it can effectively protect the welding part and improve the welding quality. Through the flexible gas protection and temperature reduction adjustment functions, it can meet the needs of different jewelry welding processes.

[0063] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A jewelry micro welding device, comprising a body (1) for jewelry welding, a welding chamber (2) and a laser welding head (3) mounted on the body (1), wherein the laser welding head (3) welds the jewelry in the welding chamber (2), and a microscope (4) for jewelry welding observation is mounted on the body (1), characterized in that: The laser emitting end of the laser welding head (3) is equipped with a protective head (5) for spraying gas, and the protective head (5) sprays inert gas to exhaust the air at the welding position; An adjusting head (6) is installed at the bottom end of the welding chamber (2), and the adjusting head (6) is located directly below the laser welding head (3). The adjusting head (6) and the protective head (5) are used to spray inert gas together, so that the inert gas impacts each other at the same speed, offsetting the impact force of the airflow, and diffusing the inert gas to exhaust the air at the welding position; An A solenoid valve (7) is installed on the pipeline connected to the protective head (5), and the release of the inert gas on the protective head (5) is controlled by the A solenoid valve (7); The regulating head (6) is extended to the inside of the machine body (1) through a pipeline and is installed on the B electromagnetic valve (8). The release of the inert gas on the regulating head (6) is controlled by the B electromagnetic valve (8). An atomizer (9) is provided inside the machine body (1), and the atomizer (9) is connected to a pipeline connected to the regulating head (6) through a pipeline, so that the inert gas carries atomized water to be discharged during the release process, so that the atomized water can be used to cool the weld after welding, and the regulating head (6) can control the on and off of the A electromagnetic valve (7), the B electromagnetic valve (8) and the atomizer (9).

2. The jewelry micro soldering equipment according to claim 1, characterized in that: The protective head (5) comprises a metal sleeve (51) connected to the laser welding head (3); a threaded bin (52) is installed at the top of the metal sleeve (51), and the metal sleeve (51) is connected to the laser welding head (3) through the inner wall thread of the threaded bin (52); an air guide port (53) extending to the inside of the threaded bin (52) is installed on the outer side of the metal sleeve (51); a light outlet (54) for laser to pass through is arranged in the middle of the metal sleeve (51); a plurality of exhaust ports (55) distributed around the light outlet (54) are opened on the metal sleeve (51), and inert gas is discharged through the plurality of exhaust ports (55).

3. A jewelry micro soldering device according to claim 2, characterized in that: The top end of the light outlet (54) is pressed against the laser emitting end of the laser welding head (3) through a sealing ring, so that the inert gas is discharged from a plurality of exhaust ports (55).

4. The jewelry micro soldering equipment according to claim 2, characterized in that: The protective head (5) further comprises an annular groove (56) provided on the side of the metal sleeve (51), and a wiring groove distributed around the surface of the annular groove (56) is provided, and a heat dissipation pipe (57) is laid in the wiring groove. The annular groove (56) on the side of the protective head (5) is connected by two semicircular rings (58), and one end of the heat dissipation pipe (57) is connected to the air guide port (53) through a pipeline, and the other end of the heat dissipation pipe (57) extends into the threaded bin (52), so that the inert gas is introduced into the threaded bin (52) through the air guide port (53) and discharged through the exhaust port (55), carrying the heat of the metal sleeve (51). At the same time, the inert gas introduced by the air guide port (53) is introduced into the heat dissipation pipe (57), and the side of the metal sleeve (51) is cooled. Finally, the inert gas is introduced into the threaded bin (52).

5. The jewelry micro soldering equipment according to claim 1, characterized in that: The regulating head (6) comprises a positioning sleeve (61) mounted at the bottom of the welding chamber (2); the bottom of the side of the positioning sleeve (61) is connected to a side connecting pipe (62) extending to the inside of the machine body (1); the top of the positioning sleeve (61) extends to the inside of the welding chamber (2) and is provided with a rotatable internal threaded ring (63); a movable threaded tube (64) is provided inside the positioning sleeve (61); a piston (65) is installed on the outer side of the bottom end of the threaded tube (64); the threaded tube (64) slides on the inner wall of the positioning sleeve (61) through the piston (65); a rotatable positioning head (66) is provided at the top of the positioning sleeve (61), and a plurality of groups of air holes (67) for discharging inert gas are provided on the positioning head (66); an anti-torque structure (68) is provided inside the threaded tube (64).

6. The jewelry micro soldering equipment according to claim 5, characterized in that: The anti-torque structure (68) includes a bracket (681) installed inside the positioning sleeve (61), the top end of the threaded tube (64) is rotatably connected to the positioning head (66) via an axis core, a spline shaft (682) is installed at the bottom end of the bracket (681), a slidable sleeve (683) is provided at the bottom end of the spline shaft (682), and the bottom end of the sleeve (683) is connected to the bottom end of the positioning sleeve (61).

7. The jewelry micro soldering equipment according to claim 1, characterized in that: The top end of the threaded tube (64) is provided with two A contacts (L1), two B contacts (L2), two C contacts (L3) and two D contacts (L4) distributed in a ring array, and the two A contacts (L1), two B contacts (L2) and two C contacts (L3) are all extended to the inside of the body (1) through wires, and the bottom end of the positioning head (66) is equipped with two E contacts (L0), and the two E contacts (L0) are connected through wires.

8. The jewelry micro soldering equipment according to claim 7, characterized in that: The bottom end of the positioning head (66) is provided with two symmetrically distributed notches, and the two E contacts (L0) slide up and down in the two notches.

9. The jewelry micro soldering equipment according to claim 7, characterized in that: The A contact (L1), the B contact (L2), the C contact (L3), the D contact (L4) and the E contact (L0) are all made of magnetic conductive materials; When the two E contacts (L0) come into contact with the two A contacts (L1), the atomizer (9) and the B solenoid valve (8) are energized, and the inert gas containing water mist is released from the regulating head (6) to cool the jewelry; When the two E contacts (L0) come into contact with the two B contacts (L2), the A solenoid valve (7) and the B solenoid valve (8) are energized, and the protective head (5) and the regulating head (6) jointly discharge inert gas to provide gas protection from the upper and lower parts of the jewelry, thereby increasing the gas coverage area; When the two E contacts (L0) are in contact with the two C contacts (L3), the B solenoid valve (8) is energized, and the inert gas is released from the regulating head (6), thereby protecting the jewelry from the bottom and reducing the amount of inert gas released; When the two E contacts (L0) come into contact with the two D contacts (L4), the A solenoid valve (7), the B solenoid valve (8) and the atomizer (9) all stop operating.

10. A jewelry micro-welding method, characterized in that: Using the jewelry micro welding equipment described in any one of claims 1 to 9, the specific operations are as follows: S1. During the jewelry welding process, the regulating head (6) is regulated to open the A solenoid valve (7) and the B solenoid valve (8), and the protective head (5) and the regulating head (6) jointly discharge the inert gas, and the jewelry is welded under the cover of the inert gas. After welding, the regulating head (6) is regulated again to open the atomizer (9) and the B solenoid valve (8), and the regulating head (6) releases the inert gas containing water mist to cool the jewelry; S2. The B electromagnetic valve (8) can be opened separately through the regulating head (6), so that the inert gas is released from the regulating head (6), and the jewelry is protected by gas from below, thereby reducing the amount of inert gas released. At the same time, the A electromagnetic valve (7), the B electromagnetic valve (8) and the atomizer (9) can be closed simultaneously through the regulating head (6).

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