Laser welding equipment for manufacturing gas generator

Abstract

The invention provides laser welding equipment for manufacturing a gas generator, and relates to the technical field of laser welding. Comprising a vibration reduction mounting base, a reciprocating driving structure, a double-shaft laser welding mechanism, a bidirectional driving structure, a gas generator shell clamping structure and a four-shaft manipulator, and the gas generator shell clamping structure comprises a vertical plate, an inclined plate, a V-shaped included angle and a hinged type clamping structure; the two-way driving structure drives the left part and the right part of the gas generator shell clamping structure to be close to or away from each other, the gas generator shell clamping structure clamps a columnar gas generator through V-shaped included angles on the two sides, hinged type clamping structures are assembled on the opposite faces of inclined plates on the two sides forming the V-shaped included angles, and the hinged type clamping structures on the two sides clamp a disc-shaped gas generator. The shape of the gas generator shell clamping structure can be changed according to requirements, the gas generator shell clamping structure is suitable for clamping a cylindrical gas generator or a disc-shaped gas generator, the clamping stability can be kept, and the welding quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and in particular to a laser welding device for manufacturing a gas generator. Background Art

[0002] The descriptions in this part only provide background information related to the present disclosure and do not constitute prior art.

[0003] A gas generator usually consists of a metal shell, an end cap and internal components. Its manufacturing requires sealed connection through welding. The welded parts are the end cap and the metal shell. The common shapes of gas generators are usually cylindrical or disc-shaped. Before using the traditional laser welding device, it is necessary to clamp the gas generator shell. After the clamping is stable, welding is carried out. The clamping structure of the traditional laser welding device is single. When clamping a cylindrical or disc-shaped gas generator, it cannot ensure the clamping stability, which affects the stability of laser welding and cannot guarantee the welding quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a laser welding device for manufacturing a gas generator, which has the advantage that the clamping structure of the gas generator shell can change its shape according to requirements and is suitable for clamping cylindrical or disc-shaped gas generators, and solves the technical problems that the clamping structure of the traditional laser welding device is single and cannot ensure the clamping stability when clamping cylindrical or disc-shaped gas generators, affecting the stability of laser welding.

[0005] The present invention provides a laser welding device for manufacturing a gas generator, including: A vibration damping mounting base, on the front side of the upper end of which a reciprocating driving structure is horizontally assembled, and on the upper end of the slider of the reciprocating driving structure a double-axis laser welding mechanism is assembled; In the middle of the upper end of the vibration damping mounting base, a bidirectional driving structure is horizontally assembled, and on the two sliders of the bidirectional driving structure, gas generator shell clamping structures are symmetrically assembled; In the middle of the rear side of the upper end of the vibration damping mounting base, a four-axis manipulator is assembled; The gas generator shell clamping structure includes: Vertical plates, with two arranged in parallel on the left and right; The lower ends of the two vertical plates are respectively fixedly connected to the upper ends of the two sliders of the bidirectional driving structure; On the front and rear sides of the opposite surfaces of the two vertical plates, inclined plates are symmetrically and fixedly assembled, and a V-shaped angle is formed between the two inclined plates; A cylindrical gas generator is clamped at the position between the two V-shaped angles; On the opposite surfaces of the two inclined plates, articulated clamping structures are assembled; A disc-shaped gas generator is clamped at the position between the two articulated clamping structures.

[0006] As a further optimization solution, in order to clamp the disc-shaped gas generator by using the articulated clamping structure, the articulated clamping structure includes: A strip-shaped groove, which is opened on the inner side of the inclined plate along the length direction; One end of the strip-shaped groove close to the vertical plate is hinged with a strip-shaped plate; One end of the strip-shaped plate away from the vertical plate is fixedly assembled with a clamping plate; One end of the outer wall of the inclined plate away from the vertical plate is vertically fixedly assembled with an electric push rod, and its telescopic end penetrates through the inclined plate and abuts against the outer wall of the strip-shaped plate on the same side; The telescopic ends of the electric push rods on both sides extend to push the clamping plates on both sides to fit together.

[0007] As a further optimization solution, in order to perform lateral drive on the double-axis laser welding mechanism, cooperate with the double-axis laser welding mechanism to realize three-axis drive of X, Y, and Z, and facilitate adjustment of the welding position, the reciprocating drive structure includes: A first strip-shaped window, which is horizontally opened on the front side of the upper end of the damping mounting base; A screw rod is rotationally assembled along the length direction of the inner wall of the first strip-shaped window; A first driving motor is fixedly assembled on the outer wall of the upper end of the damping mounting base corresponding to the first strip-shaped window, and its output end penetrates through the outer wall of the first strip-shaped window and is fixedly connected to the end of the screw rod; A first mounting seat is screwed on the outer wall of the screw rod, and it is slidably assembled in the first strip-shaped window; The lower end of the double-axis laser welding mechanism is fixedly assembled on the upper end of the first mounting seat through bolts.

[0008] As a further optimization solution, in order to facilitate driving the left and right parts of the gas generator housing clamping structure to approach and separate from each other to clamp the gas generator, the bidirectional drive structure includes: A second strip-shaped window, which is horizontally opened in the middle of the upper end of the damping mounting base; A bidirectional screw rod is rotationally assembled along the length direction of the inner wall of the second strip-shaped window; A second driving motor is fixedly assembled on the outer wall of the upper end of the damping mounting base corresponding to the second strip-shaped window, and its output end penetrates through the outer wall of the second strip-shaped window and is fixedly connected to the end of the bidirectional screw rod; Both sides of the outer wall of the bidirectional screw rod are screwed with second mounting seats, and they are slidably assembled in the second strip-shaped window; The lower ends of the two vertical plates are respectively fixedly assembled on the upper ends of the second mounting seats on the same side through bolts.

[0009] As a further optimization solution, in order to perform damping support on the device and improve the stability of the device operation, the damping mounting base includes: The vibration damping mounting plate is fixedly assembled with support frames on the front and rear sides of its lower end respectively; The vibration damping mounting plate includes: A top plate and a bottom plate, which are arranged parallel to each other up and down; Fixing bolts penetrate through the four corners of the upper surface of the top plate, and penetrate through the four corners of the bottom plate and are screwed to the upper ends of the support frames; A vibration damping structure is assembled between the top plate and the bottom plate.

[0010] As a further optimization scheme, in order to buffer the vibration generated during the welding process and improve the stability during the welding process, the vibration damping structure includes: Dampers and vibration damping springs, which are uniformly and longitudinally fixedly connected between the top plate and the bottom plate; The dampers and the vibration damping springs are staggered.

[0011] As a further optimization scheme, in order to cooperate with the dust removal device to discharge the dust generated during the welding process, a protective outer cover is fixedly assembled on the outer side of the upper end of the vibration damping mounting base; The reciprocating drive structure, the bidirectional drive structure, the double-axis laser welding mechanism, the four-axis manipulator and the gas generator housing clamping structure are all located inside the protective outer cover; The top surface of the protective outer cover is fixedly communicated with a dust removal device.

[0012] As a further optimization scheme, in order to shield and protect the devices at the upper end of the vibration damping mounting base and cooperate with the dust removal device to discharge the dust generated during the welding process, the protective outer cover includes: A rectangular cover body, the lower end of which is fixedly assembled on the upper end of the vibration damping mounting base through bolts; An exhaust window is opened on the top surface of the rectangular cover body, and is fixedly communicated with the input end of the dust removal device; An operation window is opened in the middle of the rear wall of the rectangular cover body; Transverse drive mechanisms are horizontally assembled on the left and right sides of the upper end of the rear wall of the rectangular cover body, and a baffle is fixedly assembled at the lower end of the slider; The transverse drive mechanism drives the baffle to move to the innermost side to shield the outside of the operation window.

[0013] As a further optimization scheme, in order to discharge the dust generated during the welding process, the dust removal device includes: A bag dust removal mechanism, the input end of which is fixedly communicated with the top surface of the protective outer cover; A support seat for fixing the bag of the bag dust removal mechanism is fixedly assembled on the top surface of the protective outer cover corresponding to the bag; An arc-shaped groove is horizontally opened on the top surface of the support seat; The bag of the bag dust removal mechanism is inserted into the arc-shaped groove.

[0014] As a further optimization solution, in order to facilitate the disassembly of the cloth bag cage frame and the dust removal cloth bag and facilitate the cleaning of the dust removal cloth bag, the cloth bag dust removal mechanism includes: A centrifugal fan, the input end of which is fixedly communicated with the top surface of the protective outer cover; One end of a connecting cylinder is fixedly assembled outside the output end of the centrifugal fan, and the other end of which is screwed and communicated with a cloth bag cage frame; The outer wall of the cloth bag cage frame is fixedly sleeved with a dust removal cloth bag, and an outer hemp pattern ring body is fixedly adhered to one side of the outer wall close to the centrifugal fan.

[0015] The present invention provides a laser welding device for manufacturing a gas generator through improvement. Compared with the prior art, it has the following improvements and advantages: A reciprocating drive structure is adopted to drive the biaxial laser welding mechanism to move horizontally, cooperate with the biaxial laser welding mechanism for three-axis movement, a bidirectional drive structure drives the left and right parts of the gas generator housing clamping structure to approach or move away from each other. The gas generator housing clamping structure uses the V-shaped angles on both sides to clamp the cylindrical gas generator. The opposite surfaces of the two inclined plates forming the V-shaped angle are equipped with articulated clamping structures, and the articulated clamping structures on both sides clamp the disc-shaped gas generator. The gas generator housing clamping structure can change its shape according to requirements, and is respectively suitable for clamping cylindrical or disc-shaped gas generators, and can maintain the stability of clamping. The feeding of the four-axis manipulator and the three-axis movement of the laser welding head ensure the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a schematic partial structural diagram of the present invention; Figure 3 It is a schematic structural diagram of the articulated clamping structure of the present invention in the use state; Figure 4 It is a schematic structural diagram of the articulated clamping structure of the present invention in the non-use state; Figure 5 It is a schematic structural diagram of the gas generator housing clamping structure of the present invention in the state of clamping a cylindrical gas generator; Figure 6 It is a schematic structural diagram of the gas generator housing clamping structure of the present invention in the state of clamping a disc-shaped gas generator; Figure 7 Schematic diagram of the two-way drive structure and the shock-absorbing mounting plate assembly structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structure schematic diagram at location A in; Figure 9 Schematic diagram of the protective outer cover structure of the present invention; Figure 10 Schematic diagram of the bag dust removal mechanism structure of the present invention; Figure 11 Schematic sectional view of the assembly structure of the connecting cylinder, the bag cage, and the dust removal bag of the present invention; Figure 12 Schematic diagram of the four-axis manipulator structure of the present invention; Figure 13 Schematic diagram of the two-axis laser welding mechanism structure of the present invention; Figure 14 Schematic diagram of the support frame structure of the present invention.

[0018] Explanation of reference numerals: 1 - shock-absorbing mounting base, 11 - support frame, 12 - shock-absorbing mounting plate, 121 - bottom plate, 122 - top plate, 123 - fixing bolt, 124 - shock-absorbing structure, 1241 - damper, 1242 - shock-absorbing spring, 2 - protective outer cover, 21 - rectangular cover body, 22 - exhaust window, 23 - operation window, 24 - lateral drive mechanism, 25 - baffle, 26 - guide slider, 27 - guide chute, 3 - dust removal device, 31 - bag dust removal mechanism, 311 - centrifugal fan, 312 - connecting cylinder, 313 - dust removal bag, 314 - bag cage, 32 - support seat, 33 - arc-shaped groove, 4 - reciprocating drive structure, 41 - first drive motor, 42 - first strip-shaped window, 43 - screw, 44 - first mounting seat, 5 - two-way drive structure, 51 - second drive motor, 52 - second strip-shaped window, 53 - two-way screw, 54 - second mounting seat, 6 - two-axis laser welding mechanism, 61 - first linear module, 62 - second linear module, 63 - angle-adjustable laser head, 631 - connecting block, 632 - U-shaped seat, 633 - third drive motor, 634 - collar, 635 - laser welding head, 636 - limit bolt, 64 - protective gas blowing device, 7 - four-axis manipulator, 71 - fixed seat, 72 - four-axis robotic arm, 73 - suction cup gripper, 731 - connecting plate, 732 - sleeve, 733 - internal thread seat, 734 - connecting bolt, 735 - cross plate, 736 - suction cup, 8 - gas generator housing clamping structure, 81 - vertical plate, 82 - inclined plate, 83 - articulated clamping structure, 831 - strip-shaped groove, 832 - strip-shaped plate, 833 - electric push rod, 834 - clamping plate. Detailed implementation manners

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0021] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Please refer to Figures 1-14 , the present invention provides a technical solution: a laser welding device for manufacturing a gas generator, including: A vibration damping mounting base 1, on the front side of the upper end of which a reciprocating driving structure 4 is horizontally assembled, and on the upper end of the slider of the reciprocating driving structure 4, a double-axis laser welding mechanism 6 is assembled; In the middle of the upper end of the vibration damping mounting base 1, a bidirectional driving structure 5 is horizontally assembled, and on the two sliders of the bidirectional driving structure 5, a gas generator housing clamping structure 8 is symmetrically assembled; In the middle of the rear side of the upper end of the vibration damping mounting base 1, a four-axis manipulator 7 is assembled; The gas generator housing clamping structure 8 includes: Vertical plates 81, and two are provided in parallel on the left and right; The lower ends of the two vertical plates 81 are respectively fixedly connected to the upper ends of the two sliders of the bidirectional driving structure 5; On the front and rear sides of the opposite surfaces of the two side vertical plates 81, inclined plates 82 are symmetrically and fixedly assembled, and a V-shaped angle is formed between the two inclined plates 82 on both sides; A columnar gas generator is clamped at the position between the two V-shaped angles on both sides; On the opposite surfaces of the two inclined plates 82 on both sides, articulated clamping structures 83 are assembled; A disc-shaped gas generator is clamped at the position between the two articulated clamping structures 83 on both sides.

[0023] Specifically, in this embodiment, the vibration damping mounting base 1 is a base with vibration damping function, which improves the operation stability of the device through vibration damping, and cooperates with the stability of clamping to ensure the welding quality; the dual-axis laser welding mechanism 6 and the reciprocating driving structure 4 are electrically connected to an external PLC controller and an external power supply to control the welding position. The dual-axis laser welding mechanism 6 includes: a first linear module 61, which is longitudinally arranged and its lower end is fixed to the upper end of the slider of the reciprocating driving structure 4 by bolts. A second linear module 62 is fixed to the sliding end of the first linear module 61, which is transversely arranged. The lower end of the slider of the second linear module 62 is fixedly assembled with an angle-adjustable laser head 63, and the angle of the laser welding head 635 of the angle-adjustable laser head 63 can be adjusted; The four-axis manipulator 7 includes a main body part four-axis robotic arm 72, which is a direct application of the existing technology. A suction cup gripper 73 is assembled at its end, which can drive the suction cup gripper 73 to rotate at an angle and move in a total of four axes of X, Y, and Z, and is used to adsorb and move the gas generator housing to be welded to the gas generator housing clamping structure 8. The lower end of the four-axis robotic arm 72 is fixed with a fixing seat 71, and the fixing seat 71 is fixed to the middle part of the upper rear side of the vibration damping mounting base 1 by bolts; The suction cup gripper 73 includes: a connecting plate 731, one end of which is welded to the end of the four-axis robotic arm 72, and the other end of the connecting plate 731 is sleeved with a sleeve 732; a female thread seat 733 is fixed to one side of the outer wall of the sleeve 732, and a connecting bolt 734 passes through the sleeve 732 corresponding to the female thread seat 733. The screw of the connecting bolt 734 passes through the reserved through hole on the connecting plate 731 and is screwed into the female thread seat 733; a cross plate 735 is fixedly assembled on the side of the sleeve 732 away from the end of the four-axis robotic arm 72, and suction cups 736 are uniformly fixed on its bottom surface. After the above settings, the cross plate 735 and the suction cups 736 are convenient for disassembly, maintenance or replacement. When disassembling, only the connecting bolt 734 needs to be disassembled. When installing, the reverse operation is performed. The suction cups 736 are special suction cups for the manipulator, which are connected to a negative pressure air source and communicated with the atmosphere through an intake valve, and have two states of suction and release. Multiple suction cups 736 cooperate to adsorb and move the gas generator housing to be welded to the gas generator housing clamping structure 8; Further, the bidirectional driving structure 5 drives the left and right parts of the gas generator housing clamping structure 8 to approach or move away from each other. The gas generator housing clamping structure 8 clamps the columnar gas generator by using the V-shaped angles on both sides. This design of the V-shaped angles can clamp columnar gas generators of different sizes within a certain range. Since the inner walls of the V-shaped angles are closely attached to the outer walls of the columnar gas generators, the stability of the clamping can be ensured. Articulated clamping structures 83 are assembled on the opposite surfaces of the two inclined plates 82 that form the V-shaped angles. The articulated clamping structures 83 on both sides clamp the disc-shaped gas generator. Since the distance between the left and right parts of the gas generator housing clamping structure 8 is adjustable, disc-shaped gas generators of different sizes can be clamped within a certain range. More specifically, when clamping the columnar gas generator, first place one end face of the columnar gas generator facing upwards, and the upward end face is the welding surface to be welded. After welding one end face, flip the columnar gas generator and re-clamp it to weld the other end face. When clamping the disc-shaped gas generator, use the articulated clamping structures 83 on both sides to clamp the fixed ear plates on the outside of the disc-shaped gas generator. At this time, the welding surface to be welded of the disc-shaped gas generator is in the longitudinal direction. Adjust the angle of the laser welding head 635 through the angle-adjustable laser head 63 to make it tilt towards the welding gap of the end face of the disc-shaped gas generator. First, weld the semi-circular gap on the upper side, and then re-clamp and fix the disc-shaped gas generator so that the semi-circular gap on the un-welded side faces upwards, and weld this semi-circular gap. It can be understood that the reciprocating driving structure 4 is used to drive the double-axis laser welding mechanism 6 to move horizontally. The double-axis laser welding mechanism 6 itself has the ability to drive the laser welding head 635 longitudinally and back and forth. With the cooperation of the two, the X, Y, and Z three-axis driving of the laser welding head 635 is realized.

[0024] In some embodiments, the articulated clamping structure 83 includes: A strip-shaped groove 831 is opened on the inner side surface of the inclined plate 82 along the length direction; One end of the inner wall of the strip-shaped groove 831 close to the vertical plate 81 is hinged with a strip-shaped plate 832; One end of the strip-shaped plate 832 away from the vertical plate 81 is fixedly assembled with a clamping plate 834; One end of the outer wall of the inclined plate 82 away from the vertical plate 81 is vertically fixedly assembled with an electric push rod 833, and its telescopic end penetrates through the inclined plate 82 and abuts against the outer wall of the strip-shaped plate 832 on the same side; The telescopic ends of the electric push rods 833 on both sides extend to push the clamping plates 834 on both sides to fit together.

[0025] Specifically in this embodiment, the electric push rod 833 is connected to an external power supply, and the electric push rod 833 is connected to an external PLC controller and an external power supply to work; Further, the telescopic end of the electric push rod 833 is not fixed to the strip plate 832 on the same side. Only by pushing, the two clamping plates 834 are made to fit. When the telescopic end of the electric push rod 833 is fully retracted, it is in the same plane as the bottom surface of the strip groove 831. When a V-shaped angle is needed, the strip plate 832 needs to be manually flipped and reset into the corresponding strip groove 831. When the strip plate 832 is inserted into the corresponding strip groove 831, the clamping plate 834 is located outside the strip groove 831 without being blocked; More specifically, during use, the electric push rods 833 on both sides extend to the maximum, and the strip plates 832 on both sides are pushed and flipped, so that the two clamping plates 834 fit together to clamp the fixing ear plates outside the disc-shaped gas generator.

[0026] In some embodiments, the reciprocating drive structure 4 includes: The first strip window 42 is horizontally opened on the front side of the upper end of the damping mounting base 1; A screw rod 43 is rotatably assembled along the length direction of the inner wall of the first strip window 42; A first drive motor 41 is fixedly assembled on the outer wall of the upper end of the damping mounting base 1 corresponding to the first strip window 42, and its output end penetrates through the outer wall of the first strip window 42 and is fixedly connected to the end of the screw rod 43; A first mounting seat 44 is screwed on the outer wall of the screw rod 43 and is slidably assembled in the first strip window 42; The lower end of the double-axis laser welding mechanism 6 is fixedly assembled on the upper end of the first mounting seat 44 by bolts.

[0027] Specifically in this embodiment, the first drive motor 41 is a servo motor, which is electrically connected to an external PLC controller and an external power supply, and the outer wall of the first mounting seat 44 fits against the inner wall of the first strip window 42; Further, the first drive motor 41 drives the screw rod 43 to rotate clockwise or counterclockwise. The screw rod 43 drives the first mounting seat 44 screwed thereon to slide left and right along the first strip window 42. According to needs, the rotation direction of the first drive motor 41 is controlled by the PLC controller, and then the moving direction of the first mounting seat 44 is controlled. The first mounting seat 44 drives the double-axis laser welding mechanism 6 to move accordingly; It can be understood that the double-axis laser welding mechanism 6 can be disassembled from the upper end of the first mounting seat 44 by removing the bolts fixed at the lower end, which is convenient for inspection and maintenance.

[0028] In some embodiments, the bidirectional drive structure 5 includes: The second strip window 52 is horizontally opened in the middle of the upper end of the damping mounting base 1; A bidirectional screw rod 53 is rotatably assembled along the length direction of the inner wall of the second strip window 52; A second driving motor 51 is fixedly assembled on the outer wall of the upper end of the vibration damping mounting base 1 corresponding to the second strip-shaped window 52, and its output end penetrates through the outer wall of the second strip-shaped window 52 and is fixedly connected to the end of the bidirectional screw 53; Both sides of the outer wall of the bidirectional screw 53 are threadedly connected with second mounting seats 54, which are slidably assembled in the second strip-shaped window 52; The lower ends of the two vertical plates 81 are respectively fixedly assembled on the upper ends of the second mounting seats 54 on the same side through bolts.

[0029] Specifically, in this embodiment, the second driving motor 51 is specifically a servo motor, which is electrically connected to an external PLC controller and an external power supply, and the outer wall of the second mounting seat 54 fits against the inner wall of the second strip-shaped window 52; Furthermore, the second driving motor 51 drives the bidirectional screw 53 to rotate clockwise or counterclockwise. The bidirectional screw 53 is a screw with opposite thread directions on the left and right sides. A second mounting seat 54 is threadedly connected to each of the reverse threads on both sides. The rotation of the bidirectional screw 53 drives the second mounting seats 54 on both sides to move closer to or away from each other along the second strip-shaped window 52. According to needs, the rotation direction of the second driving motor 51 is controlled by the PLC controller, and then the moving directions of the second mounting seats 54 on both sides are controlled. The second mounting seats 54 on both sides drive the two vertical plates 81 to move, driving the left and right parts of the gas generator housing clamping structure 8 to move closer to or away from each other.

[0030] In some embodiments, the vibration damping mounting base 1 includes: A vibration damping mounting plate 12, with support frames 11 fixedly assembled on the front and rear sides of its lower end respectively; The vibration damping mounting plate 12 includes: A top plate 122 and a bottom plate 121, which are arranged parallel to each other up and down; Fixing bolts 123 penetrate through the four corners of the upper surface of the top plate 122, and penetrate through the four corners of the bottom plate 121 and are threadedly connected to the upper ends of the support frames 11; A vibration damping structure 124 is assembled between the top plate 122 and the bottom plate 121.

[0031] Specifically, in this embodiment, the upper end of the vibration damping mounting plate 12 is used to install various devices, and the support frames 11 are used to support the vibration damping mounting plate 12 away from the ground, providing a convenient height for use; Furthermore, the vibration damping structure 124 between the top plate 122 and the bottom plate 121 is used to buffer the vibration during device operation, ensuring the stability of the working environment. There is a space between the top plate 122 and the bottom plate 121, and welding waste may enter this space. After the device is used, this part of the waste can be removed by blowing with high-pressure air to avoid affecting the operation of the vibration damping structure 124; It can be understood that the support frames 11 can be disassembled by removing the fixing bolts 123, which is convenient for maintenance and repair.

[0032] In some embodiments, the vibration damping structure 124 includes: a damper 1241 and a vibration damping spring 1242, both of which are longitudinally and fixedly connected between the top plate 122 and the bottom plate 121; the damper 1241 and the vibration damping spring 1242 are staggered; the damper 1241 and the vibration damping spring 1242 cooperate to function as a shock absorber, and the uniform distribution of the damper 1241 and the vibration damping spring 1242 ensures the vibration damping effect.

[0033] In some embodiments, a protective outer cover 2 is fixedly assembled on the outer side of the upper end of the vibration damping mounting base 1; the reciprocating drive structure 4, the bidirectional drive structure 5, the double-axis laser welding mechanism 6, the four-axis manipulator 7, and the gas generator housing clamping structure 8 are all located inside the protective outer cover 2; the top surface of the protective outer cover 2 is fixedly communicated with a dust removal device 3.

[0034] Specifically, in this embodiment, the protective outer cover 2 is used to shield the outside of the devices at the upper end of the vibration damping mounting base 1, playing a protective role to prevent the splashing waste from leaking out. An operation window 23 is provided on the outer wall of the protective outer cover 2, through which the internal waste is cleaned. The operation window 23 can be closed. The dust removal device 3 is used to extract the dust generated during the welding process from the protective outer cover 2. Air inlet holes are provided on the outer wall of the protective outer cover 2, and dust-proof nets are pasted in the air inlet holes for air intake.

[0035] In some embodiments, the protective outer cover 2 includes: a rectangular cover body 21, the lower end of which is fixedly assembled on the upper end of the vibration damping mounting base 1 by bolts; an exhaust window 22 is provided on the top surface of the rectangular cover body 21, which is fixedly communicated with the input end of the dust removal device 3; an operation window 23 is provided in the middle of the rear wall of the rectangular cover body 21; transverse drive mechanisms 24 are horizontally assembled on the left and right sides of the upper end of the rear wall of the rectangular cover body 21, and a baffle 25 is fixedly assembled at the lower end of the slider thereof; the transverse drive mechanism 24 drives the baffle 25 to move to the innermost side to block the outside of the operation window 23.

[0036] Specifically, in this embodiment, the exhaust window 22 is rectangular. The four-axis manipulator 7 adsorbs and fixes the gas generator to be welded and enters through the exhaust window 22. After welding, the four-axis manipulator 7 adsorbs and fixes the welded gas generator and completes the discharging through the exhaust window 22; Further, there are two baffles 25. The two side baffles 25 are fitted together to completely block the operation window 23. The baffles 25 are driven by corresponding transverse drive mechanisms 24. The transverse drive mechanism 24 is specifically a linear module in this embodiment, which is connected to an external power supply and an external PLC controller to work. The dust removal device 3 extracts dust from the exhaust window 22 at the top; It can be understood that the rectangular cover 21 can be detached from the upper end of the shock-absorbing mounting base 1 by removing the bolts for fixing the lower end, which is convenient for the inspection and maintenance of the devices installed at the upper end of the shock-absorbing mounting base 1.

[0037] In some embodiments, a guiding chute 27 is transversely opened on the rear wall of the rectangular cover 21. A guiding slider 26 is fixedly provided on the outer wall of the baffle 25 corresponding to the guiding chute 27. The guiding slider 26 is slidably assembled in the guiding chute 27. Through the guiding cooperation of the guiding chute 27 and the guiding slider 26, the left and right sliding of the baffle 25 can be made more stable.

[0038] In some embodiments, the dust removal device 3 includes: A bag dust removal mechanism 31, whose input end is fixedly communicated with the top surface of the protective outer cover 2; A support seat 32 for fixedly assembling the bag of the bag dust removal mechanism 31 is provided on the top surface of the protective outer cover 2 corresponding to the bag; An arc-shaped groove 33 is transversely opened on the top surface of the support seat 32; The bag of the bag dust removal mechanism 31 is inserted into the arc-shaped groove 33.

[0039] Specifically in this embodiment, the support seat 32 is used to support the bag of the bag dust removal mechanism 31. The opening of the arc-shaped groove 33 at the upper end of the support seat 32 improves the stability of the support for the bag of the bag dust removal mechanism 31.

[0040] In some embodiments, the bag dust removal mechanism 31 includes: A centrifugal fan 311, whose input end is fixedly communicated with the top surface of the protective outer cover 2; One end of a connecting cylinder 312 is fixedly assembled outside the output end of the centrifugal fan 311, and the other end is screwed and communicated with a bag cage 314; A dust removal bag 313 is fixedly sleeved on the outer wall of the bag cage 314, and an outer hemp texture ring body is fixedly pasted on the outer wall thereof near the centrifugal fan 311 side.

[0041] Specifically in this embodiment, an adhesive layer is provided on the inner wall of the dust removal bag 313 near the centrifugal fan 311 side. The dust removal bag 313 is fixedly sleeved on the outer wall of the bag cage 314 through this adhesive layer, and the adhesive layer can be torn off when the dust removal bag 313 needs to be replaced; Further, the centrifugal fan 311 is connected to an external power supply to operate, discharging the dust in the protective cover 2 into the dust removal cloth bag 313. The dust removal cloth bag 313 filters out the dust therein and discharges the air. The cloth bag cage 314 is used to support the dust removal cloth bag 313; More specifically, a connecting cylinder 312 is provided outside the output end of the centrifugal fan 311. The cloth bag cage 314 is screwed to the end of the connecting cylinder 312 and can be detached when needed, facilitating the cleaning and maintenance of the dust removal cloth bag 313; It can be understood that the dust removal cloth bag 313 is made of a flexible material. When pressing the outer corrugated ring body, the dust removal cloth bag 313 can be pressed against the cloth bag cage 314. When applying a rotational force while pressing at the outer corrugated ring body, the cloth bag cage 314 can be unscrewed from the connecting cylinder 312, and the reverse operation can be performed during installation.

[0042] In some embodiments, the angle-adjustable laser head 63 includes: A connecting block 631, the upper end of which is fixed to the lower end of the slider of the second linear module 62, and a U-shaped seat 632 is hinged to the lower end of the connecting block 631; a third driving motor 633 is fixed to the outer wall of the U-shaped seat 632, and its driving end is fixedly connected to the end of the hinge shaft of the U-shaped seat 632 and the connecting block 631; A collar 634 is detachably fixed to the outer wall of the U-shaped seat 632 through bolts and ear plates. A laser welding head 635 is inserted into the collar 634. A limit bolt 636 is screwed to the outer wall of the collar 634, and the end of the limit bolt 636 abuts against the outer wall of the laser welding head 635 to fix the laser welding head 635 in the collar 634. A protective gas blowing device 64 is fixed to the bottom surface of the U-shaped seat 632, its input end is connected to an external protective gas supply device, and the output end of the protective gas blowing device 64 is inclined towards the lower end of the laser welding head 635. The laser welding head 635 is a direct application of the prior art. During use, both the laser welding head 635 and the protective gas blowing device 64 are fixed on the U-shaped seat 632. The third driving motor 633 is connected to an external power supply and an external PLC controller. When the third driving motor 633 drives the U-shaped seat 632 to rotate, the laser welding head 635 and the protective gas blowing device 64 flip together to achieve angle adjustment, and the specific adjustment angle is controlled by the external PLC controller.

[0043] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser welding device for manufacturing a gas generator, characterized in that, Including: A vibration damping mounting base, on the front side of the upper end of which a reciprocating driving structure is horizontally assembled, and a double-shaft laser welding mechanism is assembled on the upper end of the slider of the reciprocating driving structure; A bidirectional driving structure is horizontally assembled in the middle of the upper end of the vibration damping mounting base, and gas generator housing clamping structures are symmetrically assembled on the two sliders of the bidirectional driving structure; A four-axis manipulator is assembled in the middle of the rear side of the upper end of the vibration damping mounting base; The gas generator housing clamping structure includes: Vertical plates, with two arranged in parallel on the left and right; The lower ends of the two vertical plates are respectively fixedly connected to the upper ends of the two sliders of the bidirectional driving structure; Oblique plates are symmetrically and fixedly assembled on the front and rear sides of the opposite surfaces of the two vertical plates, and a V-shaped angle is formed between the two oblique plates; A columnar gas generator is clamped at the position between the two V-shaped angles; Articulated clamping structures are assembled on the opposite surfaces of the two oblique plates; A disc-shaped gas generator is clamped at the position between the two articulated clamping structures.

2. The laser welding equipment for manufacturing a gas generator according to claim 1, characterized in that, The articulated clamping structure includes: A strip-shaped groove is opened in the inner side surface of the oblique plate along the length direction; A strip-shaped plate is hinged to one end of the inner wall of the strip-shaped groove close to the vertical plate; A clamping plate is fixedly assembled at one end of the strip-shaped plate away from the vertical plate; An electric push rod is vertically and fixedly assembled at one end of the outer wall of the oblique plate away from the vertical plate, and its telescopic end penetrates through the oblique plate and abuts against the outer wall of the strip-shaped plate on the same side; The telescopic ends of the two electric push rods stretch to push the two clamping plates to fit together.

3. The laser welding equipment for manufacturing a gas generator according to claim 1, wherein, The reciprocating driving structure includes: A first strip-shaped window is horizontally opened on the front side of the upper end of the vibration damping mounting base; A screw rod is rotatably assembled in the inner wall of the first strip-shaped window along the length direction; A first driving motor is fixedly assembled on the outer wall of the upper end of the vibration damping mounting base corresponding to the first strip-shaped window, and its output end penetrates through the outer wall of the first strip-shaped window and is fixedly connected to the end of the screw rod; A first mounting seat is screwed on the outer wall of the screw rod and is slidably assembled in the first strip-shaped window; The lower end of the double-shaft laser welding mechanism is fixedly assembled on the upper end of the first mounting seat through bolts.

4. A laser welding device for manufacturing a gas generator according to claim 1, characterized in that, The bidirectional driving structure includes: A second strip-shaped window is horizontally opened in the middle of the upper end of the vibration damping mounting base; A bidirectional screw rod is rotatably assembled in the inner wall of the second strip-shaped window along the length direction; A second driving motor is fixedly assembled on the outer wall of the upper end of the vibration damping mounting base corresponding to the second strip-shaped window, and its output end penetrates through the outer wall of the second strip-shaped window and is fixedly connected to the end of the bidirectional screw rod; Second mounting seats are screwed on both sides of the outer wall of the bidirectional screw rod and are slidably assembled in the second strip-shaped window; The lower ends of the two vertical plates are respectively fixedly assembled on the upper ends of the second mounting seats on the same side through bolts.

5. A laser welding device for manufacturing a gas generator according to claim 1, characterized in that, The vibration damping mounting base includes: A vibration damping mounting plate, and support frames are respectively fixedly assembled on the front and rear sides of the lower end thereof; The vibration damping mounting plate includes: A top plate and a bottom plate, which are arranged parallel to each other up and down; Fixing bolts penetrate through the four corners of the upper surface of the top plate and are screwed to the upper ends of the support frames through the four corners of the bottom plate; A vibration damping structure is assembled at the position between the top plate and the bottom plate.

6. The laser welding equipment for manufacturing a gas generator according to claim 5, characterized in that, The vibration damping structure includes: Dampers and vibration damping springs are uniformly and longitudinally fixedly connected at the position between the top plate and the bottom plate; The dampers and the vibration damping springs are distributed alternately.

7. A laser welding device for manufacturing a gas generator according to claim 1, characterized in that, A protective outer cover is fixedly assembled on the outer side of the upper end of the vibration damping mounting base; The reciprocating drive structure, the bidirectional drive structure, the dual-axis laser welding mechanism, the four-axis manipulator, and the gas generator housing clamping structure are all located inside the protective outer cover; The top surface of the protective outer cover is fixedly communicated with a dust removal device.

8. A laser welding device for manufacturing a gas generator according to claim 7, characterized in that, The protective outer cover includes: A rectangular cover body, the lower end of which is fixedly assembled to the upper end of the shock-absorbing mounting base by bolts; An exhaust window is opened on the top surface of the rectangular cover body, which is fixedly communicated with the input end of the dust removal device; An operation window is opened in the middle of the rear wall of the rectangular cover body; Transverse drive mechanisms are horizontally assembled on the left and right sides of the upper end of the rear wall of the rectangular cover body, and a baffle is fixedly assembled at the lower end of the slider thereof; The transverse drive mechanism drives the baffle to move to the innermost side to block the outside of the operation window.

9. A laser welding device for manufacturing a gas generator according to claim 7, characterized in that, The dust removal device includes: A bag dust removal mechanism, the input end of which is fixedly communicated with the top surface of the protective outer cover; A support seat for fixedly assembling the dust bag of the bag dust removal mechanism is arranged on the top surface of the protective outer cover; An arc-shaped groove is horizontally opened on the top surface of the support seat; The dust bag of the bag dust removal mechanism is inserted into the arc-shaped groove.

10. A laser welding device for manufacturing a gas generator according to claim 9, characterized in that, The bag dust removal mechanism includes: A centrifugal fan, the input end of which is fixedly communicated with the top surface of the protective outer cover; One end of a connecting cylinder is fixedly assembled outside the output end of the centrifugal fan, and the other end is screwed and communicated with a bag cage; A dust removal bag is fixedly sleeved on the outer wall of the bag cage, and an outer hemp pattern ring body is fixedly adhered to the outer wall of the dust removal bag on the side close to the centrifugal fan.

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