Laser welding equipment

Abstract

The invention relates to the technical field of welding equipment, and specifically discloses a laser welding device, comprising a machine body and an electrode roller, and also comprising two movable electrode shafts, each electrode shaft comprising a fixed shaft, a limiting member is fixedly arranged on the fixed shaft, and a blocking plate is elastically arranged on the fixed shaft; a replacement mechanism comprises a mounting frame fixedly arranged on the machine body, and a limiting mechanism and a releasing mechanism are installed on the mounting frame; the laser welding device of the invention controls the electrode shaft to move and insert the electrode roller in the accommodating channel, and then controls the electrode shaft to move away from the mounting frame, and at the same time controls the releasing mechanism to drive the rotating arm to deflect so that the push rod moves away from the entrance, so that the electrode roller is smoothly moved out, and the installation of the electrode roller is completed; the electrode roller on the electrode shaft is controlled to pass over the push rod and enter the conveying channel, and then the electrode shaft is controlled to move in the opposite direction, so that the electrode roller is blocked by the push rod and forced to pass over the blocking plate and be removed, so that the electrode roller can be replaced, the process is convenient and fast, and the technical requirements for workers are reduced.

Description

Technical Field

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

[0002] A laser, or semiconductor laser, is a device that uses the interaction between electronic excitation and radiation of semiconductor materials to produce a laser beam with high coherence and narrow spectrum. It is widely used in fiber optic communications, laser printing, industrial cutting, industrial welding, biomedical laser therapy and other fields, and plays an important role in modern science and technology.

[0003] like Figure 1 As shown, the shell of the laser includes a base 1a and a cap 1b. During assembly, the base 1a and the cap 1b need to be connected by welding to encapsulate and protect the internal components. The welding method in the related art is to vacuum bake the part to be encapsulated to remove moisture, and under the protection of an inert gas, a pair of electrode rollers 50 are discharged while rolling over the edge of the part to be encapsulated. Due to the contact resistance between the electrode rollers 50 and the cap 1b, the welding current will generate heat at the two contact resistances, and local heating is performed to achieve seam welding, thereby achieving the purpose of welding the base 1a and the cap 1b.

[0004] This process will not only form a molten welding area on the pipe cap, but also cause wear of the electrode roller to a certain extent. Especially under high-frequency pulse heating, the wear rate of the electrode roller may accelerate. The excessively worn electrode roller cannot effectively transmit current and pressure, which in turn affects the welding quality. Therefore, the electrode roller must be checked regularly and replaced in time to ensure welding quality and efficiency. In the related technology, the laser sealing equipment installs the electrode roller on the machine body through threaded fasteners. When the electrode roller needs to be replaced, it needs to be disassembled and installed directly by hand, which has the risk of scalding the human body. This process has high technical requirements for workers and the process is relatively cumbersome. Summary of the invention

[0005] The present invention provides a laser welding device, aiming to solve the problem that the laser welding device in the related art needs to be directly disassembled and installed manually when replacing the electrode roller, which has the risk of scalding the human body, has high technical requirements for workers, and the process is relatively cumbersome.

[0006] The laser welding device of the present invention comprises a body and at least four electrode rollers, each of which has a mounting hole and a clamping table, and further comprises:

[0007] Two movable electrode shafts, each of which comprises a fixed shaft, a limiting member is fixedly arranged on the fixed shaft, a blocking plate is elastically arranged on the fixed shaft, and the electrode roller can pass over the blocking plate;

[0008] Two replacement mechanisms, each of which includes a mounting frame fixed on the machine body, on which a limiting mechanism and a releasing mechanism are installed; the mounting frame has a accommodating path, a conveying path and an entrance which are connected in sequence, and the electrode roller is accommodated in the accommodating path; the limiting mechanism includes a second bracket fixed on the mounting frame, a rotating arm is hinged on the second bracket, and an elastic member second is fixed on the second bracket and the rotating arm, a push rod placed in the entrance is hinged on the rotating arm, and an elastic member three is fixed on the rotating arm and the push rod; the releasing mechanism can drive the rotating arm to deflect so that the push rod moves away from the entrance.

[0009] When it is necessary to install the electrode roller, the electrode shaft is controlled to move so that the electrode shaft enters from the entrance and is inserted into the installation hole of the electrode roller in the accommodating path, so that the electrode roller passes over the blocking plate and is placed between the blocking plate and the limiting member to complete the installation of the electrode roller. Subsequently, the electrode shaft with the electrode roller installed is controlled to move away from the mounting frame, and the release mechanism is controlled to drive the rotating arm to deflect so that the push rod moves away from the entrance, so that the electrode roller installed on the electrode shaft can be smoothly moved out; when it is necessary to remove the electrode roller on the electrode shaft, the electrode shaft is controlled to enter from the entrance, and the electrode roller on it pushes the push rod to deflect to pass over the push rod, and the electrode roller passing over the push rod enters the conveying path, and the push rod is reset under the elastic force of the elastic member three, and then the electrode shaft is controlled to move in the opposite direction, and the electrode roller on the electrode shaft will be blocked by the push rod, and the electrode roller is forced to pass over the blocking plate to complete the removal of the electrode roller on the electrode shaft, and the removed electrode roller falls into the conveying path. Repeating the operation can install a new electrode roller again, thereby realizing the replacement of the electrode roller, avoiding manual direct disassembly and installation, effectively reducing the risk of scalding the human body, and the process is convenient and fast, reducing the technical requirements for workers.

[0010] Preferably, the limiting member comprises a limiting ring fixed on a fixed shaft, and at least three supporting members are arranged on a side of the limiting ring close to the blocking plate, and all the supporting members are evenly distributed along the circumferential direction of the limiting ring.

[0011] Providing the support member can reduce the contact area between the restriction ring and the electrode roller, thereby reducing the friction between the restriction ring and the electrode roller.

[0012] Preferably, a guide hole 1 is opened on the fixed shaft, and the blocking plate is slidably connected in the guide hole 1 with a single degree of freedom. An elastic member 1 is fixed between the blocking plate and the inner wall of the guide hole 1, and the elastic force of the elastic member 1 can drive the blocking plate to protrude out of the guide hole 1. The blocking plate is provided with inclined surface 1 and inclined surface 2.

[0013] External force is applied to insert the electrode roller along the fixed axis, and the electrode roller can press the inclined surface 2 to force the blocking plate to overcome the elastic force of the elastic member 1 and shrink into the guide hole 1, thereby achieving the purpose of the electrode roller passing over the blocking plate. After the electrode roller passes over the blocking plate, the elastic force of the elastic member 1 drives the blocking plate to extend out of the guide hole 1, so that the electrode roller is restricted between the blocking plate and the restriction member to complete the installation of the electrode roller; conversely, external force is applied to pull the electrode roller outward along the fixed axis, and the electrode roller can press the inclined surface 1 to force the blocking plate to overcome the elastic force of the elastic member 1 and shrink into the guide hole 1, thereby achieving the purpose of the electrode roller passing over the blocking plate to complete the removal of the electrode roller.

[0014] Preferably, it also includes a driving mechanism installed on the machine body, the driving mechanism includes two vertical rails, a transverse driving device is installed between the two vertical rails and the machine body to drive the two vertical rails to move in opposite directions, each of the vertical rails is slidably connected with a mounting head, the two electrode shafts are respectively fixed on the two mounting heads, and each of the vertical rails is installed with a longitudinal driving device to drive the mounting head to move.

[0015] Preferably, the transverse driving device includes a transverse rail fixed on the machine body and a driving motor fixed on the machine body, two slides are slidably connected to the transverse rail, and the two slides are respectively fixedly connected to the two vertical rails, and a bidirectional screw is fixed at the output end of the driving motor, and the two threaded sections of the bidirectional screw are respectively threadedly connected to the two slides.

[0016] Preferably, the longitudinal drive device comprises a second drive motor fixedly mounted on the vertical rail, a one-way screw is fixedly mounted on the output end of the second drive motor, and the one-way screw is threadedly connected to the mounting head.

[0017] Preferably, the conveying path is designed to be inclined, the mounting frame is further provided with a collecting chamber, and the lowest end of the conveying path is connected to the collecting chamber.

[0018] The effect is that the electrode roller removed from the electrode shaft can be placed in the conveying path, and the electrode roller can be rolled along the inclined conveying path to the collecting chamber for collection, thereby improving the convenience of use.

[0019] Preferably, the rotating arm has a limiting portion, and the limiting portion abuts against the ejector rod.

[0020] Preferably, the release mechanism includes a guide rail fixed on the mounting frame, a slide rod is slidably connected with a single degree of freedom on the guide rail, an elastic member four is fixed on the slide rod and the guide rail, a push rod is slidably connected with a single degree of freedom on the slide rod, a slope three is provided on the push rod, an elastic member five is fixed on the push rod and the slide rod, a top bar is fixed on the slide rod, and the movement of the top bar can force the rotating arm to deflect.

[0021] When the electrode roller leaves the mounting frame along with the electrode shaft, the electrode roller can push the inclined surface three on the push rod and drive the push rod to move synchronously. The movement of the push rod drives the sliding rod to overcome the elastic member four and move synchronously. The movement of the sliding rod drives the top bar to move, so that the top bar pushes the rotating arm to force the rotating arm to deflect. The deflection of the rotating arm drives the top rod to move, so that the top rod is away from the entrance, so that the entrance is no longer blocked by the top rod. When the sliding rod moves to the end of the guide rail, it is blocked and no longer moves, while the electrode roller is still moving. At this time, the electrode roller will press the inclined surface three on the push rod, and force the push rod to retract into the guide hole two, so that the electrode roller passes over the push rod. Subsequently, the push rod is reset under the elastic force of the elastic member five, and the sliding rod is reset under the elastic force of the elastic member four and returns to the initial state.

[0022] The beneficial effects of the present invention are as follows: when it is necessary to install the electrode roller, the electrode shaft is controlled to move so that the electrode shaft enters from the entrance and is inserted into the installation hole of the electrode roller in the accommodating channel, so that the electrode roller passes over the blocking plate and is placed between the blocking plate and the limiting member to complete the installation of the electrode roller. Subsequently, the electrode shaft with the electrode roller installed is controlled to move away from the mounting frame, and at the same time, the release mechanism is controlled to drive the rotating arm to deflect so that the push rod moves away from the entrance, so that the electrode roller installed on the electrode shaft can be smoothly moved out; when it is necessary to remove the electrode roller on the electrode shaft, the electrode shaft is controlled to enter from the entrance, and at the same time, the electrode roller on it pushes the top rod. The push rod is deflected to pass over the push rod, and the electrode roller that passes over the push rod enters the conveying path. At the same time, the push rod is reset under the elastic force of the elastic member three, and then the electrode shaft is controlled to move in the opposite direction. The electrode roller on the electrode shaft will be blocked by the push rod, and the electrode roller is forced to pass over the blocking plate to complete the removal of the electrode roller on the electrode shaft. The removed electrode roller falls into the conveying path, and the new electrode roller can be installed again by repeating the operation, thus realizing the replacement of the electrode roller and avoiding direct manual disassembly and installation, effectively reducing the risk of scalding the human body, and the process is convenient and fast, reducing the technical requirements for workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the electrode roller and the laser housing in the prior art.

[0024] Figure 2 It is a structural schematic diagram of a specific embodiment of the present invention.

[0025] Figure 3 It is a schematic structural diagram of a machine body according to a specific embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of the electrode shaft of a specific embodiment of the present invention.

[0027] Figure 5 It is a cross-sectional view of a fixed shaft and a blocking plate according to a specific embodiment of the present invention.

[0028] Figure 6It is a schematic structural diagram of the electrode shaft, driving mechanism and replacement mechanism of a specific embodiment of the present invention.

[0029] Figure 7 It is a schematic diagram of the structure of the driving mechanism of a specific embodiment of the present invention.

[0030] Figure 8 It is a schematic structural diagram of a longitudinal drive device in a specific embodiment of the present invention.

[0031] Fig. 9 It is a structural schematic diagram of a replacement mechanism in a specific embodiment of the present invention.

[0032] Fig.10 It is a three-dimensional cross-sectional view of a mounting frame according to a specific embodiment of the present invention.

[0033] Fig.11 It is a schematic structural diagram of a limiting mechanism in a specific embodiment of the present invention.

[0034] Fig.12 It is a specific embodiment of the present invention Fig.11 Schematic diagram of the structure enlarged at point A in the middle.

[0035] Fig.13 It is a schematic diagram of the structure of the limiting mechanism and the releasing mechanism of a specific embodiment of the present invention.

[0036] Fig.14 It is a three-dimensional cross-sectional view of a guide rail and a slide rod according to a specific embodiment of the present invention.

[0037] Fig.15 It is a schematic diagram of the three-dimensional structure of an electrode roller in a specific embodiment of the present invention.

[0038] Fig.16 It is a cross-sectional view of an electrode roller according to a specific embodiment of the present invention.

[0039] Fig.17 It is a structural schematic diagram of a state in which the ejector rod of a specific embodiment of the present invention leaves the entrance.

[0040] Fig.18 It is a structural schematic diagram of a state in which a top rod in a specific embodiment of the present invention is blocked at an entrance.

[0041] Reference numerals:

[0042] 10. Machine body; 11. Bracket 1; 12. Protective box; 121. Gloves; 20. Electrode shaft; 21. Fixed shaft; 211. Guide hole 1; 22. Limiting member; 221. Limiting ring; 222. Support member; 23. Blocking plate; 231. Inclined surface 1; 232. Inclined surface 2; 24. Elastic member 1; 30. Driving mechanism; 31. Vertical rail; 311. T-shaped slide; 32. Horizontal driving device; 321. Horizontal rail; 322. Driving motor 1; 323. Slide plate; 324. Bidirectional screw; 33. Mounting head; 331. T-shaped boss; 34. Longitudinal driving device; 341. Driving motor 2; 342 , one-way screw; 40, replacement mechanism; 41, mounting frame; 411, accommodating channel; 412, conveying channel; 413, collecting chamber; 414, entrance; 42, limiting mechanism; 421, bracket two; 422, rotating arm; 4221, limiting part; 423, elastic member two; 424, push rod; 425, elastic member three; 43, release mechanism; 431, guide rail; 432, sliding rod; 4321, guide hole two; 433, elastic member four; 434, push rod; 4341, inclined plane three; 435, elastic member five; 436, top strip; 50, electrode roller; 51, mounting hole; 52, card table; 53, contact inclined plane. DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0044] like Figures 2 to 18 As shown, the laser sealing device of the present invention includes a body 10 and two symmetrically arranged electrode shafts 20. The body 10 is provided with a driving mechanism 30, which can drive the two electrode shafts 20 to move. Two replacement mechanisms 40 are both arranged on the body 10, and the two replacement mechanisms 40 correspond to the two electrode shafts 20 respectively. At least two electrode rollers 50 are arranged in each replacement mechanism 40. The electrode roller 50 can be installed on the electrode shaft 20 by controlling the electrode shaft 20 to move toward the replacement mechanism 40, and the electrode roller 50 on the electrode shaft 20 can be removed by controlling the electrode shaft 20 to move toward the replacement mechanism 40.

[0045] like Figure 2 and Figure 3As shown, the body 10 includes a bracket 11, a placing table is installed on the top of the bracket 11 for placing the laser, a protective box 12 is arranged on the bracket 11, the protective box 12 and the bracket 11 form a sealed cavity, an air inlet is arranged on the protective box 12 for allowing an inert gas to enter the sealed cavity, the inert gas can isolate the welding area, prevent impurities such as oxygen and water vapor in the air from having a negative impact on the welding process and the weld, so as to improve the welding quality, a glass plate is provided on the protective box 12, an operating hole is opened on the glass plate, a glove 121 is installed in the operating hole, a person can put on the glove 121 through the operating hole, so that the person can operate the welding parts in the protective box 12 by hand (the structure of the body 10 is the prior art and will not be repeated).

[0046] refer to Figure 2 , Figure 4 and Figure 5 As shown, the electrode shaft 20 includes a fixed shaft 21, to which a limiting member 22 is fixedly connected, at least two guide holes 211 are provided on the fixed shaft 21, and all the guide holes 211 are evenly distributed along the circumferential direction of the fixed shaft 21, and a blocking plate 23 is slidably connected in each guide hole 211 with a single degree of freedom, and an elastic member 24 is fixedly connected between the blocking plate 23 and the inner wall of the guide hole 211. In the present embodiment, the elastic member 24 is a spring, and the elastic force of the elastic member 24 can drive the blocking plate 23 to protrude out of the guide hole 211, and the blocking plate 23 is provided with an inclined surface 231 and an inclined surface 232.

[0047] When installing the electrode roller 50 on the electrode shaft 20, an external force is applied to insert the electrode roller 50 along the fixed shaft 21, and the electrode roller 50 can press the inclined surface 232 to force the blocking plate 23 to overcome the elastic force of the elastic member 24 and shrink into the guide hole 211, thereby achieving the purpose of the electrode roller 50 passing over the blocking plate 23. After the electrode roller 50 passes over the blocking plate 23, the elastic force of the elastic member 24 drives the blocking plate 23 to extend out of the guide hole 211, so that the electrode roller 50 is restricted between the blocking plate 23 and the restriction member 22, so as to complete the installation of the electrode roller 50; conversely, when removing the electrode roller 50 on the electrode shaft 20, an external force is applied to pull the electrode roller 50 outward along the fixed shaft 21, and the electrode roller 50 can press the inclined surface 231 to force the blocking plate 23 to overcome the elastic force of the elastic member 24 and shrink into the guide hole 211, thereby achieving the purpose of the electrode roller 50 passing over the blocking plate 23, so as to complete the removal of the electrode roller 50.

[0048] Continue to refer Figure 4As shown, the limiting member 22 includes a limiting ring 221 welded on the fixed shaft 21, and at least three support members 222 are provided on the side of the limiting ring 221 close to the blocking plate 23, and all the support members 222 are evenly distributed along the circumferential direction of the limiting ring 221. In the present embodiment, the support member 222 is a ball, and the limiting ring 221 is provided with a groove connected to the rolling of the ball. In other embodiments, the support member 222 is a hemispherical protrusion welded on the limiting ring 221. The provision of the support member 222 can reduce the contact area between the limiting ring 221 and the electrode roller 50, thereby reducing the friction between the limiting ring 221 and the electrode roller 50.

[0049] refer to Figure 2 , Figures 5 to 8 As shown, the driving mechanism 30 includes two vertical rails 31, and a horizontal driving device 32 is installed between the two vertical rails 31 and the body 10 to drive the two vertical rails 31 to move closer to or away from each other. Each vertical rail 31 is slidably connected with a mounting head 33 in a single degree of freedom, and the electrode shaft 20 is fixedly mounted on the mounting head 33. It should be noted that a T-shaped groove 311 is provided on the vertical rail 31, and a T-shaped boss 331 adapted to the T-shaped groove 311 is provided on the mounting head 33 to realize the single degree of freedom sliding of the T-shaped boss 331 in the T-shaped groove 311. A longitudinal driving device 34 is installed on each vertical rail 31 to drive the mounting head 33 to move along the T-shaped groove 311 of the vertical rail 31.

[0050] Continue to refer Figure 6 and Figure 7 As shown, the transverse drive device 32 includes a transverse rail 321 welded on the body 10 and a drive motor 322 fixedly installed on the body 10. The transverse rail 321 is slidably connected with two slides 323 in a single degree of freedom. The two slides 323 are respectively fixedly connected to the two vertical rails 31. The output end of the drive motor 322 is fixedly connected with a bidirectional screw 324. The bidirectional screw 324 has two thread segments with opposite rotation directions. The two thread segments on the bidirectional screw 324 are respectively threadedly connected to the two slides 323. The drive motor 322 can drive the bidirectional screw 324 to rotate. When the bidirectional screw 324 rotates, it can force the two slides 323 to move in the opposite direction through spiral driving. The movement of the two slides 323 then drives the two vertical rails 31 to move respectively, thereby realizing the function of the two vertical rails 31 approaching or moving away from each other.

[0051] Continue to refer Figure 7 and Figure 8As shown, the longitudinal drive device 34 includes a second drive motor 341 fixedly set on the vertical rail 31, and the output end of the second drive motor 341 is fixedly connected with a one-way screw 342, and the one-way screw 342 is threadedly connected to the mounting head 33. The second drive motors 341 on the two longitudinal drive devices 34 are controlled to synchronously drive the one-way screw 342 to rotate. The rotation of the one-way screw 342 drives the mounting head 33 to move through the threaded connection with the mounting head 33, and the movement of the mounting head 33 drives the electrode shaft 20 to move.

[0052] refer to Figure 2 , Figures 9 to 14 As shown, each replacement mechanism 40 includes a mounting frame 41 fixedly arranged on the body 10, and a limiting mechanism 42 and a releasing mechanism 43 are installed on the mounting frame 41. The limiting mechanism 42 can prevent the electrode roller 50 in the replacement mechanism 40 from leaving the mounting frame 41, and the releasing mechanism 43 can control the limiting mechanism 42 to no longer block the electrode roller 50.

[0053] Continue to refer Figures 9 to 11 As shown, the mounting frame 41 has a housing channel 411, a conveying channel 412 connected to the housing channel 411, a collecting chamber 413 connected to the conveying channel 412, and an entrance 414 connected to the conveying channel 412. It should be noted that the housing channel 411 is used to accommodate the electrode rollers 50, and the electrode rollers 50 are vertically stacked in the housing channel 411 in sequence. The conveying channel 412 is inclined in design, and the lowest end of the conveying channel 412 is connected to the collecting chamber 413. The electrode rollers 50 removed from the electrode shaft 20 can be placed in the conveying channel 412, and the electrode rollers 50 can roll along the inclined conveying channel 412 to the collecting chamber 413 for collection.

[0054] Continue to refer Figures 11 to 13 As shown, the limiting mechanism 42 includes a second bracket 421 fixedly mounted on the mounting frame 41, a rotating arm 422 is hinged on the second bracket 421 through a rotating shaft, and an elastic member 423 is fixedly connected between the second bracket 421 and the rotating arm 422. In the present embodiment, the elastic member 423 is a spring sheet, a top rod 424 is hinged on the rotating arm 422 through a rotating shaft, and an elastic member 3 425 is arranged on the rotating arm 422 and the top rod 424. In the present embodiment, the elastic member 423 is a spring sheet, and a limiting portion 4221 is provided on the rotating arm 422. The elastic force of the elastic member 425 drives the limiting portion 4221 to maintain contact with the top rod 424.

[0055] Continue to refer Fig.13 and Fig.14As shown, the release mechanism 43 includes a guide rail 431 welded on the mounting frame 41, a slide bar 432 is slidably connected with a single degree of freedom on the guide rail 431, and an elastic member 433 is fixedly connected to the slide bar 432 and the guide rail 431. In the present embodiment, the elastic member 433 is a tension spring, and a guide hole 2 4321 is provided at one end of the slide bar 432 close to the conveying path 412, and a push rod 434 is slidably connected with the inner wall of the guide hole 2 4321 with a single degree of freedom, and a slope 3 4341 is provided on the push rod 434, and an elastic member 5 435 is fixedly provided between the push rod 434 and the inner wall of the guide hole 2 4321, and a top strip 436 is welded on one end of the slide bar 432 away from the conveying path 412, and the movement of the top strip 436 can force the rotating arm 422 to deflect, and the deflection of the rotating arm 422 drives the push rod 424 to move, so that the push rod 424 is away from the entrance 414.

[0056] refer to Fig.15 and Fig.16 The electrode roller 50 shown has a mounting hole 51, a clamping platform 52 and a contact slope 53. The mounting hole 51 is for the electrode shaft 20 to insert, the clamping platform 52 can cooperate with the blocking plate 23 to limit the position of the electrode roller 50, and the contact slope 53 can contact the welding part to achieve welding.

[0057] When in use, the control driving mechanism 30 drives the electrode shaft 20 to move toward the mounting frame 41, so that the electrode shaft 20 enters from the entrance 414, and then the electrode shaft 20 passes through the conveying path 412 and enters the accommodating path 411. At this time, the mounting hole 51 of the electrode roller 50 located at the bottom of the accommodating path 411 is aligned with the electrode shaft 20, and the electrode shaft 20 entering the accommodating path 411 is inserted into the mounting hole 51 of the electrode roller 50. At the same time, the electrode roller 50 penetrates along the fixed axis 21, and the electrode roller 50 presses against the inclined surface 232 to force the blocking plate 23 to overcome the elastic force of the elastic member 24 and retract into the guide hole 211, thereby achieving the purpose of the electrode roller 50 passing over the blocking plate 23. After the electrode roller 50 passes over the blocking plate 23, the elastic force of the elastic member 24 drives the blocking plate 23 to extend out of the guide hole 211, so that the electrode roller 50 is restricted between the blocking plate 23 and the limiting member 22 to complete the installation of the electrode roller 50.

[0058] Subsequently, the driving mechanism 30 is controlled to drive the electrode shaft 20 to move in the opposite direction. At the same time, the electrode roller 50 on the electrode shaft 20 can push the inclined surface 3 4341 on the push rod 434 and drive the push rod 434 to move synchronously. The movement of the push rod 434 drives the sliding bar 432 to overcome the elastic member 433 and move synchronously. The movement of the sliding bar 432 drives the top bar 436 to move, so that the top bar 436 pushes the rotating arm 422 to force the rotating arm 422 to deflect. The rotating arm 422 deflects to drive the top bar 424 to move, so that the top bar 424 moves away from the entrance 414. At this time, the entrance 414 is no longer blocked by the top bar 424, so that the electrode roller 50 protrudes out of the entrance 414 (such as Fig.17), when the slide bar 432 moves to the end of the guide rail 431, it is blocked and no longer moves, while the electrode roller 50 is still moving. At this time, the electrode roller 50 will press the inclined surface three 4341 on the push rod 434, forcing the push rod 434 to retract into the guide hole two 4321, so that the electrode roller 50 passes over the push rod 434, and then the push rod 434 is reset under the elastic force of the elastic member five 435, the slide bar 432 is reset under the elastic force of the elastic member four 433, and the rotating arm 422 moves under the elastic force of the elastic member two 423. Due to the obstruction of the electrode roller 50, the push rod 424 falls on the side of the electrode roller 50, and the electrode roller 50 continues to move until it is completely out of the entrance 414. Subsequently, the rotating arm 422 is also completely reset under the elastic force of the elastic member two 423, and drives the push rod 424 to block the entrance 414, so that the electrode roller 50 can be controlled to move for welding.

[0059] When the electrode roller 50 needs to be removed, the driving mechanism 30 is controlled to drive the electrode shaft 20 to move toward the mounting frame 41, and the electrode roller 50 on the electrode shaft 20 pushes the push rod 424 to deflect and pass over the push rod 424. The electrode roller 50 that passes over the push rod 424 enters the conveying path 412, and at the same time, the push rod 424 is reset under the elastic force of the elastic member 425. Then, the driving mechanism 30 is controlled to drive the electrode shaft 20 to move in the opposite direction, and the electrode roller 50 on the electrode shaft 20 will be blocked by the push rod 424 (such as Fig.18 As shown in the figure, the electrode roller 50 presses against the inclined surface 231 to force the blocking plate 23 to overcome the elastic force of the elastic member 24 and retract into the guide hole 211, thereby enabling the electrode roller 50 to pass over the blocking plate 23 to complete the removal of the electrode roller 50 on the electrode shaft 20. The removed electrode roller 50 falls into the conveying path 412 and rolls along the inclined conveying path 412 to the collecting chamber 413 for collection. The electrode shaft 20 is repeatedly controlled to enter the accommodating path 411, and a new electrode roller 50 can be installed again.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A laser welding device, comprising a body (10) and at least four electrode rollers (50), characterized in that: Each of the electrode rollers (50) has a mounting hole (51) and a clamping platform (52), and further comprises: Two movable electrode shafts (20), each of the electrode shafts (20) comprising a fixed shaft (21), a limiting member (22) being fixedly provided on the fixed shaft (21), a blocking plate (23) being elastically provided on the fixed shaft (21), and the electrode roller (50) being able to pass over the blocking plate (23); Two replacement mechanisms (40), each of the replacement mechanisms (40) comprises a mounting frame (41) fixedly mounted on the machine body (10), the mounting frame (41) being mounted with a limiting mechanism (42) and a releasing mechanism (43); the mounting frame (41) having a receiving passage (411), a conveying passage (412) and an entrance (414) which are connected in sequence, the electrode roller (50) being received in the receiving passage (411), and the removed electrode roller (50) falling into the conveying passage (412); the limiting mechanism (42) comprising a A second bracket (421) is mounted on the mounting frame (41); a rotating arm (422) is hingedly connected to the second bracket (421); a second elastic member (423) is fixedly provided on the second bracket (421) and the rotating arm (422); a top rod (424) placed in the entrance (414) is hingedly connected to the rotating arm (422); and a third elastic member (425) is fixedly provided on the rotating arm (422) and the top rod (424); the release mechanism (43) is capable of driving the rotating arm (422) to deflect so that the top rod (424) moves away from the entrance (414).

2. The laser sealing device according to claim 1, characterized in that: The limiting member (22) comprises a limiting ring (221) fixed on the fixed shaft (21), and at least three supporting members (222) are also provided on a side of the limiting ring (221) close to the blocking plate (23), and all the supporting members (222) are evenly distributed along the circumferential direction of the limiting ring (221).

3. The laser welding equipment according to claim 1, characterized in that: A guide hole 1 (211) is provided on the fixed shaft (21), and the blocking plate (23) is slidably connected in the guide hole 1 (211) with a single degree of freedom. An elastic member 1 (24) is fixedly provided between the blocking plate (23) and the inner wall of the guide hole 1 (211), and the elastic force of the elastic member 1 (24) can drive the blocking plate (23) to protrude out of the guide hole 1 (211). The blocking plate (23) is provided with an inclined surface 1 (231) and an inclined surface 2 (232).

4. The laser sealing device according to claim 1, characterized in that: The machine body (10) further comprises a driving mechanism (30) mounted on the machine body (10), the driving mechanism (30) comprising two vertical rails (31), a transverse driving device (32) being mounted between the two vertical rails (31) and the machine body (10) to drive the two vertical rails (31) to move in opposite directions, a mounting head (33) being slidably connected to each of the vertical rails (31), the two electrode shafts (20) being respectively fixed on the two mounting heads (33), and a longitudinal driving device (34) being mounted on each of the vertical rails (31) to drive the mounting head (33) to move.

5. The laser sealing device according to claim 4, characterized in that: The transverse drive device (32) comprises a transverse rail (321) fixedly mounted on the machine body (10) and a drive motor (322) fixedly mounted on the machine body (10); two slide plates (323) are slidably connected to the transverse rail (321); the two slide plates (323) are respectively fixedly connected to the two vertical rails (31); a bidirectional screw (324) is fixedly mounted at the output end of the drive motor (322); two threaded sections of the bidirectional screw (324) are respectively threadedly connected to the two slide plates (323).

6. The laser welding equipment according to claim 4, characterized in that: The longitudinal drive device (34) comprises a second drive motor (341) fixedly mounted on the vertical rail (31); a one-way screw rod (342) is fixedly mounted on the output end of the second drive motor (341); and the one-way screw rod (342) is threadedly connected to the mounting head (33).

7. The laser sealing device according to claim 1, characterized in that: The conveying path (412) is of inclined design, and the mounting frame (41) is also provided with a collecting chamber (413), and the lowest end of the conveying path (412) is in communication with the collecting chamber (413).

8. The laser sealing device according to claim 1, characterized in that: The rotating arm (422) is provided with a limiting portion (4221), and the limiting portion (4221) abuts against the push rod (424).

9. The laser sealing device according to any one of claims 1 to 8, characterized in that: The release mechanism (43) comprises a guide rail (431) fixedly mounted on the mounting frame (41); a slide bar (432) is slidably connected to the guide rail (431) in a single degree of freedom; an elastic member (433) is fixedly mounted on the slide bar (432) and the guide rail (431); a push rod (434) is slidably connected to the slide bar (432) in a single degree of freedom; a slope (4341) is arranged on the push rod (434); an elastic member (435) is fixedly mounted on the push rod (434) and the slide bar (432); and a top bar (436) is fixedly mounted on the slide bar (432); the top bar (436) can move to force the rotating arm (422) to deflect.

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