Rotating disc type continuous machining laser welding device

Abstract

The invention relates to the technical field of laser welding auxiliary equipment, in particular to a rotating disc type continuous machining laser welding device which comprises a conveying frame arranged at the position close to a rotating disc, a conveying device is arranged on the conveying frame, a plurality of pre-fixing assemblies are evenly arranged on the conveying device, and the rotating disc type continuous machining laser welding device further comprises a reciprocating assembly which comprises a mounting box. A reciprocating screw rod is rotatably arranged in the mounting box, a moving plate is slidably arranged in the mounting box, the moving plate is in threaded connection with the reciprocating screw rod, a servo motor is arranged at the end of the mounting box, and the output end of the servo motor is fixedly connected with the reciprocating screw rod; a fixing mechanism is arranged on the rotary disc, and an ejector rod and a rack are arranged on the movable plate. When the center positions of the pre-fixing assembly, the ejector rod and the fixing mechanism are aligned, the movable plate drives the ejector rod from the half-stroke position to convey a workpiece to the center position of the fixing mechanism, and the movable plate drives the rack from the half-stroke position to enable the fixing mechanism to release clamping. The moving plate drives the fixing mechanism to complete clamping when conveying the workpiece to the center of the fixing mechanism to return.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding auxiliary equipment, in particular to a turntable type continuous processing laser welding device. Background Art

[0002] As an advanced metal processing technology, the basic principle of laser welding is to use a laser oscillator to generate laser light and transmit it to the vicinity of the workpiece through an optical fiber. Near the workpiece, the laser processing head focuses the transmitted laser light to a state suitable for processing. The use of lenses allows the light energy to be highly concentrated in a small area, thereby obtaining the high energy required to melt the metal. In order to prevent the molten metal from oxidizing, protective gases such as argon and nitrogen are usually blown during the welding process.

[0003] In practical applications, existing laser welding devices cannot be separated from the cooperation of auxiliary devices, which are designed to accurately position the workpiece and lay a solid foundation for subsequent laser welding operations. However, most of the commonly used auxiliary devices are limited to a single clamping function. Whether it is pneumatic clamping or manual operation, manual assistance is required to accurately place the workpiece in the preset position. This process is not only cumbersome, but also greatly restricts the improvement of production efficiency.

[0004] Based on this, the present invention discloses a turntable type continuous processing laser welding device. Summary of the invention

[0005] In order to solve the problem that the laser welding auxiliary equipment proposed in the background technology is mainly based on a single clamping device and relies on manual positioning, thereby affecting the overall production efficiency, the present invention provides a turntable type continuous processing laser welding device, which includes a workbench and a laser welding machine arranged on the workbench, and the workbench is also provided with an intermittently rotating turntable;

[0006] As a further improvement of the technical solution, a conveying rack is arranged near the position of the turntable, a conveying device for intermittent conveying is arranged on the conveying rack, a plurality of pre-fixing components for pre-fixing workpieces are evenly arranged on the conveying device, and a reciprocating component is arranged near the position of the turntable and the pre-fixing component at the same horizontal line;

[0007] Among them, the reciprocating component includes an installation box, a reciprocating screw is rotatably arranged in the installation box, a movable plate is slidably arranged in the installation box, the movable plate is threadedly connected to the reciprocating screw, a servo motor is arranged at the end of the installation box, and the output end of the servo motor is fixedly connected to the reciprocating screw; a fixing mechanism is arranged on the turntable, and a push rod and a rack are arranged on the movable plate; when the center positions of the pre-fixing component, the push rod and the fixing mechanism are aligned, the movable plate drives the push rod from the half-stroke position to send the workpiece to the center position of the fixing mechanism, and the movable plate drives the rack from the half-stroke position to release the clamping of the fixing mechanism; when the movable plate sends the workpiece to the center of the fixing mechanism and returns, it drives the fixing mechanism to complete the clamping.

[0008] As a further improvement of the present technical solution, a servo drive device is arranged on the workbench below the laser welding machine, a rotating rod is arranged at the output end of the servo drive device, the turntable is fixed on the rotating rod, and the servo drive device drives the turntable to adapt to the servo motor and the conveying frame for intermittent rotation through the rotating rod.

[0009] As a further improvement of the present technical solution, the fixing mechanism comprises a gear plate rotatably connected to the rotating rod, the gear plate having a plurality of inclined grooves evenly arranged around its center, and a clamping assembly matching the appearance of the workpiece being slidably arranged in the inclined groove.

[0010] As a further improvement of the present technical solution, the clamping assembly includes a support rod slidably connected in the inclined groove, a first sliding groove corresponding to the inclined groove is radially penetrated on the turntable, the support rod is slidably connected to the first sliding groove, the top end of the support rod extending to the outside of the first sliding groove is fixedly connected with a telescopic cylinder, a second spring is arranged in the telescopic cylinder, a telescopic rod is slidably connected in the telescopic cylinder through the second spring, and the other end of the telescopic rod extends to the outside of the telescopic cylinder and is fixedly connected with a clamping plate that matches the appearance of the workpiece.

[0011] As a further improvement of the technical solution, a third slide groove is provided on one side of the installation box, a connecting rod is slidably connected in the third slide groove, one end of the connecting rod is fixedly connected to the rack, and the other end is fixedly connected to the movable plate, and the rack is meshed with the gear plate;

[0012] A second slide groove is provided in the middle of the top of the installation box, and the push rod is slidably connected in the second slide groove, with one end of the push rod facing the center of the fixing mechanism and the other end fixedly connected to the top of the moving plate.

[0013] As a further improvement of the technical solution, when the movable plate returns inside the installation box and passes the middle position of the installation box, the rack is disengaged from the gear plate.

[0014] As a further improvement of the technical solution, a plurality of limit grooves are arranged in a circle around the center of the bottom of the gear plate, and a limit component is provided on the workbench for limiting the gear plate through the limit grooves when the gear plate is disengaged from the rack.

[0015] As a further improvement of the present technical solution, the limiting assembly includes a accommodating box fixed on the workbench and located directly below the limiting groove, a third spring is arranged in the accommodating box, and an extrusion block is slidably connected in the accommodating box through the third spring; both sides of the extrusion block along the movement direction of the moving plate are wedge-shaped structures, an extrusion plate is fixed on the rack, and before the rack engages with the gear plate, the extrusion plate first contacts with the extrusion block; the top end of the extrusion block is adapted to the structure of the limiting groove.

[0016] As a further improvement of the technical solution, the pre-fixing assembly includes a mounting plate fixed on the conveying device, and the mounting plate is symmetrically fixed with fixing plates at both ends perpendicular to the conveying direction of the conveying device, and a sliding cavity is opened in the fixing plate, and a first spring is arranged in the sliding cavity, and the sliding cavity is slidably connected to a clamping block through the first spring;

[0017] A positioning plate is fixedly provided on the side of the mounting plate away from the push rod, and a through opening of a wedge-shaped structure is formed in the middle of the two positioning plates along the extension and retraction direction of the push rod, and the end of the through opening away from the push rod is adapted to the outer diameter of the workpiece; a clamping opening adapted to the outer diameter of the workpiece is formed in the middle of the two clamping blocks, and the top of the clamping block is a wedge-shaped structure; a connecting groove plate adapted to the workpiece is fixedly provided at a position adjacent to the through opening on the conveying rack, and a positioning groove adapted to the workpiece is radially opened on the turntable, one end of the connecting groove plate is connected to the positioning groove, and the other end of the connecting groove plate is connected to the through opening formed by the two positioning plates; and the end of the positioning groove away from the connecting groove plate is located at the center position of the fixing mechanism.

[0018] As a further improvement of the present technical solution, annular airbags are symmetrically arranged on both sides of the movable plate in the installation box, and the tops of the ends of the annular airbags that are away from each other are connected to air blowing pipes, and the air blowing pipes on the two annular airbags are connected to each other, and the ends of the air blowing pipes away from the annular airbags are arranged at the position where the workpiece is to be welded near the center of the fixing mechanism, and the bottoms of the ends of the annular airbags that are away from each other are connected to ventilation pipes; a one-way valve that only allows exit but not entry compared to the annular airbag is arranged in the air blowing pipe, and a one-way valve that only allows entry but not exit is arranged in the ventilation pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In this turntable type continuous processing laser welding device, through the cooperation of the pre-fixing component and the conveying device, the workpiece is first pre-fixed by the clamping block and the first spring. With the intermittent operation of the conveying device, the workpiece on the mounting plate is transported to the designated position in an orderly manner, which is conducive to reducing manual intervention, improving production efficiency, and ensuring that each workpiece can enter the subsequent process accurately.

[0021] 2. In this turntable type continuous processing laser welding device, a push rod, a connecting groove plate and a positioning groove are set to ensure a smooth transition from the pre-fixed component to the turntable, avoiding the workpiece from falling or shifting during the transfer process, which not only improves the safety and stability of the operation, but also ensures the smooth operation of the entire production line.

[0022] 3. In this turntable type continuous processing laser welding device, the reciprocating motion of the moving plate driven by the reciprocating assembly combined with the servo motor ensures that the workpiece can be accurately pushed to the center position of the fixed mechanism, and the gear plate is unlocked and locked in the process, which helps to ensure the position accuracy of each welding operation, thereby improving the welding quality.

[0023] 4. In this turntable continuous processing laser welding device, through the design of the annular airbag and the air blow pipe, the welding area will be automatically cleaned before the workpiece is in place and after the welding is completed to prevent dust and impurities from affecting the welding effect, effectively improving the welding quality and the overall aesthetics of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the workbench of the present invention;

[0026] Figure 3 It is a schematic structural diagram of the conveying device of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the pre-fixing assembly of the present invention;

[0028] Figure 5 It is a structural cross-sectional view of the fixing plate of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the turntable of the present invention;

[0030] Figure 7 It is a structural exploded diagram of the fixing mechanism of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the mud scraping assembly of the present invention;

[0032] Fig. 9It is a structural cross-sectional view of the telescopic tube of the present invention;

[0033] Fig.10 It is a top view of the structure of the gear plate of the present invention;

[0034] Fig.11 A bottom view of the structure of the gear plate of the present invention;

[0035] Fig.12 It is a schematic diagram of the structure of the limiting groove of the present invention;

[0036] Fig.13 It is a structural schematic diagram of the limiting assembly of the present invention;

[0037] Fig.14 It is a cross-sectional view of the structure of the limiting component of the present invention;

[0038] Fig.15 It is a structural schematic diagram of the reciprocating assembly of the present invention;

[0039] Fig.16 It is a cross-sectional view of the structure of the reciprocating assembly of the present invention;

[0040] Fig.17 It is a schematic structural diagram of the annular airbag of the present invention;

[0041] Fig.18 It is a schematic diagram of the state of the extruded plate of the present invention;

[0042] Fig.19 It is a schematic structural diagram of the extruded plate of the present invention.

[0043] The meaning of each number in the figure is:

[0044] 1. Workbench; 2. Laser welding machine; 3. Conveyor rack; 4. Conveyor device; 5. Pre-fixation assembly; 6. Turntable; 7. First slide slot; 8. Fixing mechanism; 9. Positioning slot; 10. Connecting slot plate; 11. Rotating rod; 12. Limiting slot; 13. Limiting assembly; 14. Reciprocating assembly; 15. Ejector rod; 16. Rack; 17. Extrusion plate; 18. Servo drive device;

[0045] 51. Mounting plate; 52. Fixing plate; 53. Sliding cavity; 54. Clamping block; 55. First spring; 56. Positioning plate;

[0046] 81. gear plate; 82. inclined slot; 83. clamping assembly;

[0047] 831, support rod; 832, telescopic cylinder; 833, telescopic rod; 834, second spring; 835, clamping plate;

[0048] 131. accommodating box; 132. extrusion block; 133. third spring;

[0049] 141. Installation box; 142. Servo motor; 143. Reciprocating screw rod; 144. Moving plate; 145. Annular airbag; 146. Second slide slot; 147. Third slide slot; 148. Connecting rod; 149. Blowing pipe; 150. Ventilation pipe. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Existing laser welding auxiliary equipment mainly relies on a single clamping device and relies on manual positioning, which affects the overall production efficiency.

[0052] To this end, the present invention provides a turntable type continuous processing laser welding device, see Figure 1-Figure 2 As shown, it includes a workbench 1 and a laser welding machine 2 arranged on the workbench 1, the workbench 1 is also provided with an intermittently rotating turntable 6, a conveying rack 3 is arranged near the turntable 6, a conveying device 4 for intermittent conveying is arranged on the conveying rack 3, a plurality of pre-fixing components 5 for pre-fixing workpieces are evenly arranged on the conveying device 4, and a reciprocating component 14 is arranged near the turntable 6 and the pre-fixing component 5 at the same horizontal line.

[0053] The conveying device 4 intermittently conveys the pre-fixed component 5 on the conveying rack 3. When the pre-fixed component 5 reaches the designated position, the conveying device 4 pauses and waits for the next operation.

[0054] Among them, Figure 1 and Figure 7 As shown, a servo drive device 18 is provided on the workbench 1 below the laser welding machine 2, a rotating rod 11 is provided at the output end of the servo drive device 18, a turntable 6 is fixed on the rotating rod 11, and the servo drive device 18 drives the turntable 6 to adapt the reciprocating assembly 14 and the conveying frame 3 to intermittently rotate through the rotating rod 11.

[0055] Specifically, refer to Figure 1-Figure 5As shown, the pre-fixing component 5 includes a mounting plate 51 fixedly mounted on the conveying device 4, and the mounting plate 51 is symmetrically fixed with fixing plates 52 at both ends perpendicular to the conveying direction of the conveying device 4, a sliding cavity 53 is opened in the fixing plate 52, and a clamping block 54 is slidably connected in the sliding cavity 53, and a first spring 55 is arranged in the sliding cavity 53, one end of the first spring 55 is fixedly connected to the inner wall of the sliding cavity 53, and the other end of the sliding cavity 53 is fixedly connected to one end of the clamping block 54 located in the sliding cavity 53; a positioning plate 56 is fixedly mounted on the side of the mounting plate 51 away from the push rod 15, and a through opening of a wedge-shaped structure is formed between the two positioning plates 56 along the telescopic direction of the push rod 15, and the end of the through opening away from the push rod 15 is adapted to the outer diameter of the workpiece; a clamping opening adapted to the outer diameter of the workpiece is formed between the two clamping blocks 54, and the top of the clamping block 54 is a wedge-shaped structure; as shown Figure 3 and Figure 6 As shown, a connecting groove plate 10 adapted to the workpiece is fixedly provided at a position near the through-opening on the conveying frame 3, and a positioning groove 9 adapted to the workpiece is radially opened on the turntable 6, one end of the connecting groove plate 10 is connected to the positioning groove 9, and the other end of the connecting groove plate 10 is connected to the through-opening formed by the two positioning plates 56; and the end of the positioning groove 9 away from the connecting groove plate 10 is located at the center of the fixing mechanism 8.

[0056] The pre-fixing assembly 5 realizes the pre-fixing of the workpiece through the fixing plate 52 on the mounting plate 51 and the clamping block 54 in the sliding cavity 53, in cooperation with the elastic force of the first spring 55. When the workpiece is inserted into the clamping opening, the clamping block 54 is forced to retract into the sliding cavity 53, and the first spring 55 is compressed. After the workpiece is fully inserted, the clamping block 54 clamps the workpiece under the elastic force of the first spring 55. In other words, through the cooperation of the clamping block 54 and the first spring 55, the workpiece is quickly pre-fixed, without manual operation, and the work efficiency is improved. At the same time, the clamping opening is adapted to the workpiece structure, protecting the workpiece from being scratched.

[0057] Further, see Figure 2 and Figure 15-17As shown, the reciprocating assembly 14 includes an installation box 141, a reciprocating screw rod 143 is rotatably arranged in the installation box 141, a moving plate 144 is slidably arranged in the installation box 141, the moving plate 144 is threadedly connected to the reciprocating screw rod 143, a servo motor 142 is arranged at the end of the installation box 141, the output end of the servo motor 142 is fixedly connected to the reciprocating screw rod 143, and annular air bags 145 are symmetrically arranged on both sides of the moving plate 144 in the installation box 141, and the ends of the annular air bags 145 that are away from each other are topped The two annular airbags 145 are connected to each other with a blowing pipe 149, and the blowing pipes 149 on the two annular airbags 145 are connected to each other. The end of the blowing pipe 149 away from the annular airbag 145 is arranged at a position where the workpiece is to be welded near the center of the fixing mechanism 8, and the bottoms of the ends of the annular airbags 145 away from each other are connected to a ventilation pipe 150; and the blowing pipe 149 is provided with a one-way valve that only allows exit but not entry compared to the annular airbag 145, and the ventilation pipe 150 is provided with a one-way valve that only allows entry but not exit compared to the annular airbag 145.

[0058] The servo motor 142 in the reciprocating assembly 14 drives the reciprocating screw 143 to rotate, drives the moving plate 144 to reciprocate, and then drives the push rod 15 to push the workpiece from the pre-fixing assembly 5 into the positioning groove 9 of the turntable 6; that is, through the cooperation of the reciprocating assembly 14 and the push rod 15, the automatic pushing of the workpiece is realized, which reduces manual intervention and improves production efficiency. At the same time, the push plate of the push rod 15 is adapted to the workpiece structure to protect the workpiece from damage.

[0059] Furthermore, Figure 6-Figure 10 As shown, a fixing mechanism 8 is provided on the turntable 6, and the fixing mechanism 8 includes a gear plate 81 rotatably connected to the rotating rod 11, and a plurality of inclined grooves 82 are evenly opened on the gear plate 81 around its center, and a clamping assembly 83 matching the appearance of the workpiece is slidably provided in the inclined groove 82;

[0060] Among them, refer to Figure 8-Figure 9 As shown, the clamping assembly 83 includes a support rod 831 slidably connected in the inclined groove 82, and a first sliding groove 7 corresponding to the inclined groove 82 is radially penetrated on the turntable 6, the support rod 831 is slidably connected to the first sliding groove 7, and the support rod 831 extends to the top end outside the first sliding groove 7 and is fixedly connected with a telescopic cylinder 832, and a telescopic rod 833 is slidably connected inside the telescopic cylinder 832, and a second spring 834 is arranged inside the telescopic cylinder 832, one end of the second spring 834 is fixedly connected to the inner wall of the telescopic cylinder 832, and the other end of the second spring 834 is fixedly connected to one end of the telescopic rod 833 located in the telescopic cylinder 832, and the other end of the telescopic rod 833 extends to the outside of the telescopic cylinder 832 and is fixedly connected with a clamping plate 835 that matches the appearance of the workpiece.

[0061] Specifically, refer to Figure 15-16As shown, in order to drive the clamping and releasing of the fixing mechanism 8, a push rod 15 and a rack 16 are provided on the movable plate 144, wherein a second slide groove 146 is provided at the middle position of the top of the installation box 141, and the push rod 15 is slidably connected in the second slide groove 146, and one end of the push rod 15 is directly opposite to the center of the fixing mechanism 8, and the other end is fixedly connected to the top of the movable plate 144; secondly, a third slide groove 147 is provided on one side of the installation box 141, and a connecting rod 148 is slidably connected in the third slide groove 147, and one end of the connecting rod 148 is fixedly connected to the rack 16, and the other end is fixedly connected to the movable plate 144, wherein the rack 16 is meshed with the gear plate 81; combined with Figure 2 and Figure 1 ,6, and when the movable plate 144 returns in the installation box 141 and passes the middle position of the installation box 141, the rack 16 disengages from the gear plate 81; and when the center positions of the pre-fixing component 5, the push rod 15 and the fixing mechanism 8 are aligned, the movable plate 144 drives the push rod 15 from the half-stroke position to send the workpiece to the center position of the fixing mechanism 8, and in this process, the movable plate 144 drives the rack 16 from the half-stroke position to release the clamping of the fixing mechanism 8; when the movable plate 144 sends the workpiece to the center of the fixing mechanism 8 and returns, it drives the fixing mechanism 8 to complete the clamping.

[0062] The rack 16 meshes with the gear plate 81 under the drive of the moving plate 144, drives the gear plate 81 to rotate, drives the clamping components 83 to move away from or toward each other, and realizes the clamping or release of the workpiece. In other words, through the cooperation of the rack 16 and the gear plate 81, the automatic clamping and release of the workpiece is realized, and the work efficiency is improved. At the same time, the elastic expansion and contraction setting of the clamping component 83 provides error correction space and buffer space for the positioning of the workpiece, protecting the workpiece from being over-clamped.

[0063] Further, see Figure 11-Figure 14 As shown, in the process of clamping the workpiece by the fixing mechanism 8, in order to ensure the stability of the clamping, it is necessary to limit the gear plate 81 to prevent the gear plate 81 from rotating and causing unstable clamping when the rack 16 and the gear plate 81 are out of mesh. Therefore, a plurality of limiting grooves 12 are arranged in a circumferential manner around the center of the circle at the bottom of the gear plate 81, and a limiting component 13 is provided on the workbench 1 to limit the gear plate 81 through the limiting grooves 12 when the gear plate 81 and the rack 16 are out of mesh.

[0064] Among them, Fig.14As shown, the limiting assembly 13 includes a accommodating box 131 fixedly arranged on the workbench 1 and located directly below the limiting groove 12. An extruding block 132 is slidably connected in the accommodating box 131. A third spring 133 is arranged in the accommodating box 131. One end of the third spring 133 is fixedly connected to the inner wall of the bottom of the accommodating box 131, and the other end of the third spring 133 is fixedly connected to the bottom of one end of the extruding block 132 located in the extruding block 132. It should be noted that both sides of the extruding block 132 along the movement direction of the moving plate 144 are wedge-shaped structures.

[0065] Reference Figure 17-Figure 19 As shown, an extrusion plate 17 is fixed on the rack 16. Before the rack 16 engages with the gear plate 81, the extrusion plate 17 first contacts the extrusion block 132; and here the top end of the extrusion block 132 is adapted to the structure of the limiting groove 12, ensuring that the extrusion block 132 can be inserted into the limiting groove 12 to limit the gear plate 81.

[0066] Before the rack 16 is meshed with the gear plate 81, the extrusion plate 17 first contacts the extrusion block 132 and squeezes it into the receiving box 131. When the rack 16 is disengaged from the gear plate 81, the extrusion block 132 is clamped into the limiting groove 12 under the elastic force of the third spring 133 to limit the gear plate 81; that is, through the cooperation of the limiting assembly 13 and the extrusion plate 17, the automatic limiting of the gear plate 81 is achieved, ensuring the stable clamping of the workpiece during the welding process. At the same time, the design of the limiting assembly 13 is simple and reliable, easy to implement and maintain.

[0067] In summary, by providing a pre-fixing component 5 with a wedge-shaped clamping opening, a positioning plate 56 and an elastic clamping block 54, in conjunction with an intermittent conveying device 4, the workpiece can be quickly pre-fixed and automatically aligned with the transmission path through a downward pressing action; at the same time, the servo drive device 18 is used to drive the turntable 6 to rotate intermittently, and the radial telescopic clamping component 83 controlled by the gear plate 81 is used to automatically trigger the elastic clamping when the workpiece reaches the welding station; secondly, the reciprocating screw 143 drives the moving plate 144 to link the ejector 15, the rack 16 and the extrusion plate 17. While the ejector 15 pushes the workpiece to the center of the turntable 6, the rack 16 drives the gear plate 81 to release the clamping state of the previous workpiece; finally, the moving plate 144 is used to synchronously squeeze the annular airbag 145 when it moves, thereby effectively solving the problem that the existing laser welding auxiliary equipment is mainly based on a single clamping device and relies on manual positioning, thereby affecting the overall production efficiency:

[0068] Working principle:

[0069] When the whole system is working, the worker first clamps the workpiece from top to bottom into the clamping opening formed by the two clamping blocks 54. Since the top of the clamping block 54 is a wedge-shaped structure, it is convenient for the workpiece to be clamped in. During the clamping process, the clamping block 54 enters the sliding cavity 53. Then, when the workpiece completely enters the clamping opening of the clamping block 54, the workpiece is pre-fixed with the help of the clamping block 54 and the first spring 55. In other words, the pre-fixation of the workpiece is achieved through the action of clamping the bracket.

[0070] Then the conveying device 4 drives intermittent transmission, forming intermittent transmission of the workpiece in the clamping opening on the mounting plate 51, and when the clamping opening of the mounting plate 51 is facing the connecting slot plate 10, and at this time, the positioning slot 9 on the turntable 6 is also facing the connecting slot plate 10, and at this time, the servo motor 142 drives the moving plate 144 to be exactly in the middle position of the mounting box 141, and the push rod 15 is always facing the positioning slot 9 and the connecting slot plate 10. Therefore, when the clamping opening of the mounting plate 51, that is, the workpiece is in a line of the push rod 15, the positioning slot 9, and the connecting slot plate 10, the conveying device 4 drives the workpiece to intermittently suspend transmission, and then the push rod 15 continues to move forward under the drive of the moving plate 144. It should be noted here that Fig.16 It can be seen that the entire installation box 141 and the movable plate 144 are both rectangular, which can limit the movable plate 144 and ensure that the servo motor 142 can make the movable plate 144 reciprocate in the installation box 141 through the reciprocating screw 143, thereby driving the top rod 15 to reciprocate, which will not be repeated below.

[0071] The push rod 15 moves forward to push the workpiece out of the clamping opening, and Figure 4 It can be seen that the clamping opening is adapted to the workpiece structure. The present invention takes the workpiece as a circular structure as an example, and a push plate adapted to the workpiece structure is also provided at the top of the push rod 15, so as to improve the protection of the workpiece and prevent the workpiece from being scratched. The end of the clamping opening away from the push rod 15 is smooth, ensuring that the push rod 15 can push the workpiece out of the clamping opening. After the workpiece leaves the clamping opening, due to the lack of pre-clamping and fixation of the clamping block 54, the workpiece may be offset during the pushing process. Therefore, with the help of the wedge-shaped opening formed by the two positioning plates 56, the workpiece is allowed to face the connecting groove plate 10 when it goes out of the opening, and the connecting groove plate 10 and the positioning groove 9 are just adapted to the workpiece structure. Therefore, after the workpiece is pushed out of the opening by the push rod 15, it enters the connecting groove plate 10 for transfer. Then, when the turntable 6 rotates to the point where the positioning groove 9 is connected to the connecting groove plate 10, it is also in a paused state. In this way, the workpiece can enter the positioning groove 9 through the transfer of the connecting groove plate 10, and is finally pushed into the rear end of the positioning groove 9, that is, the center position of the fixing mechanism 8.

[0072] The connection setting of the connecting groove plate 10 here is to prevent the workpiece from falling when sliding from the mounting plate 51 to the turntable 6, while not affecting the transmission of the entire pre-fixed component 5 on the conveying device 4. It is also worth noting that the present invention takes into account the problem of not affecting the transportation of the conveying device 4 when designing the reciprocating component 14 and the top rod 15, the rack 16, and the extrusion plate 17.

[0073] In the process of the moving plate 144 being driven forward by the reciprocating screw rod 143, that is, before the push rod 15 pushes the workpiece to gradually move to the center position of the fixing mechanism 8, Fig.18 It can be seen that the extrusion plate 17 first contacts the extrusion block 132, and then the extrusion plate 17 squeezes the extrusion block 132 into the accommodating box 131, and then the rack 16 is meshed with the gear plate 81, and then the rack 16 and the extrusion plate 17 are continuously pushed forward by the moving plate 144, and then the extrusion plate 17 will cover the extrusion block 132, so that the extrusion block 132 is always located in the accommodating box 131, so that the extrusion block 132 will not be engaged in the limiting groove 12, and the gear plate 81 will not be limited, ensuring that the rack 16 can drive the gear plate 81 to rotate, and then causing the plurality of clamping assemblies 83 to move away from each other, so as to facilitate the entry of the workpiece. Providing position and space also means that the welding of the previous workpiece has been completed. When the multiple clamping assemblies 83 are away from each other, the previous welded workpiece can be taken away to make room and position for the next one. The elastic telescopic setting of the telescopic cylinder 832 and the support rod 831 can provide a certain error correction space for the positioning of the workpiece, rather than relying on the rigid contact between the clamping plate 835 and the workpiece to cause the workpiece to be clamped. This can protect the workpiece during the correction process and avoid the workpiece being over-clamped when the rack 16 drives the gear plate 81 to rotate, thereby providing a buffer space for the clamping plate 835 to clamp the workpiece.

[0074] When the workpiece is sent to the center position of the fixing mechanism 8, the moving plate 144 starts to return. When the entire workpiece is sent to the center position of the fixing mechanism 8, only half of the moving plate 144 is used. During this period, the moving plate 144 will also squeeze the annular air bag 145, causing the air blowing pipe 149 to clean the dust at the position to be welded, so as to prevent dust and impurities from affecting the welding effect after the workpiece is in place, and at the same time prevent impurities on the positioning groove 9 from affecting the sliding effect of the workpiece and causing damage to the workpiece; when the workpiece reaches the predetermined position, the moving plate 144 drives the ejector rod 15, the rack 16 and the extrusion plate 17 to return. During this period, the extrusion block 132 is always squeezed by the extrusion plate 17, that is to say, the gear plate 81 always remains in an unrestricted state. Then the moving plate 144 returns, driving the rack 16 to drive the gear plate 81 to rotate in the opposite direction. It is worth mentioning that It should be noted that during this period, the conveyor frame 3 always remains in a paused state, and the servo drive device 18 also remains in a paused state. Then the gear plate 81 rotates in the opposite direction to drive the several clamping components 83 to move toward each other to clamp the workpiece. When the movable plate 144 returns to the middle position of the installation box 141, that is, the initial state, the rack 16 is about to disengage from the gear plate 81. At this time, the extrusion plate 17 also ends the extrusion of the extrusion block 132. The extrusion block 132 is inserted into the limit groove 12 to limit the gear plate 81, ensuring that the clamping components 83 are stable on the workpiece. At this time, the servo drive device 18 and the laser welding machine 2 start working. The servo drive device 18 drives the entire rotating rod 11 to rotate, and then drives the turntable 6 and the fixing mechanism 8 as well as the workpiece to rotate, and the laser welding machine 2 completes the welding of the workpiece around.

[0075] Among them, when the moving plate 144 returns beyond the middle position, the moving plate 144 begins to squeeze another annular airbag 145, and the previously squeezed annular airbag 145 completes inflation and recovery through the ventilation pipe 150, then the blowing pipe 149 will continue to blow air near the workpiece to improve the environment near the welding position and prevent impurities from affecting the working environment; and after the moving plate 144 returns beyond the middle position, the conveying frame 3 starts to start and conveys the next workpiece until the moving plate 144 completes the second half and returns to the middle position of the installation box 141, that is, the initial position, the conveying frame 3 just conveys the next workpiece to the position of the push rod 15, and at the same time, the opening of the positioning plate 56 is facing the connecting groove plate 10; and during this period, the turntable 6 also completes a circle of rotation welding under the drive of the servo drive device 18, so that the positioning groove 9 is also facing the position of the connecting groove plate 10, and thus the next workpiece is pushed according to the above process, and so on.

[0076] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turntable type continuous processing laser welding device, comprising a workbench (1) and a laser welding machine (2) arranged on the workbench (1), wherein an intermittently rotating turntable (6) is also arranged on the workbench (1), characterized in that: A conveying frame (3) is arranged near the rotating disk (6), a conveying device (4) for intermittent conveying is arranged on the conveying frame (3), a plurality of pre-fixing components (5) for pre-fixing workpieces are evenly arranged on the conveying device (4), and a reciprocating component (14) is arranged near the rotating disk (6) and the pre-fixing component (5) at the same horizontal line position; The reciprocating assembly (14) comprises an installation box (141), a reciprocating screw rod (143) is rotatably arranged in the installation box (141), a movable plate (144) is slidably arranged in the installation box (141), the movable plate (144) is threadedly connected to the reciprocating screw rod (143), a servo motor (142) is arranged at the end of the installation box (141), and the output end of the servo motor (142) is fixedly connected to the reciprocating screw rod (143); The rotating disk (6) is provided with a fixing mechanism (8), and the movable plate (144) is provided with a push rod (15) and a rack (16); When the pre-fixing assembly (5) and the push rod (15) are aligned with the center position of the fixing mechanism (8), the movable plate (144) drives the push rod (15) from the half-stroke position to send the workpiece to the center position of the fixing mechanism (8), and the movable plate (144) drives the rack (16) from the half-stroke position to release the clamping of the fixing mechanism (8); The movable plate (144) delivers the workpiece to the center of the fixing mechanism (8) and drives the fixing mechanism (8) to complete clamping when returning.

2. The rotary disk type continuous processing laser welding device according to claim 1 is characterized in that: A servo drive device (18) is arranged on the workbench (1) below the laser welding machine (2); a rotating rod (11) is arranged at the output end of the servo drive device (18); the turntable (6) is fixed on the rotating rod (11); and the servo drive device (18) drives the turntable (6) to intermittently rotate through the rotating rod (11) and the servo motor (142) and the conveying frame (3).

3. The rotary disk type continuous processing laser welding device according to claim 2 is characterized in that: The fixing mechanism (8) comprises a gear plate (81) rotatably connected to the rotating rod (11), the gear plate (81) being provided with a plurality of inclined grooves (82) evenly arranged around its center, and a clamping assembly (83) matching the appearance of the workpiece being slidably arranged in the inclined groove (82).

4. The rotary disk type continuous processing laser welding device according to claim 3 is characterized in that: The clamping assembly (83) includes a support rod (831) slidably connected in the inclined groove (82); a first sliding groove (7) corresponding to the inclined groove (82) is radially penetrated on the turntable (6); the support rod (831) is slidably connected to the first sliding groove (7); the top end of the support rod (831) extending to the outside of the first sliding groove (7) is fixedly connected with a telescopic cylinder (832); a second spring (834) is arranged in the telescopic cylinder (832); a telescopic rod (833) is slidably connected in the telescopic cylinder (832) via the second spring (834); the other end of the telescopic rod (833) extends to the outside of the telescopic cylinder (832) and is fixedly connected with a clamping plate (835) adapted to the appearance of the workpiece.

5. The rotary disc type continuous processing laser welding device according to claim 4, characterized in that: A third slide groove (147) is provided on one side of the installation box (141), and a connecting rod (148) is slidably connected in the third slide groove (147), one end of the connecting rod (148) is fixedly connected to the rack (16), and the other end is fixedly connected to the movable plate (144), and the rack (16) is meshed with the gear plate (81); A second slide groove (146) is provided in the middle of the top of the installation box (141), and the push rod (15) is slidably connected in the second slide groove (146), and one end of the push rod (15) is directly opposite to the center of the fixing mechanism (8), and the other end is fixedly connected to the top of the movable plate (144).

6. The rotary disk type continuous processing laser welding device according to claim 5, characterized in that: When the movable plate (144) returns inside the installation box (141) and passes the middle position of the installation box (141), the rack (16) is disengaged from the gear plate (81).

7. The rotary disk type continuous processing laser welding device according to claim 6, characterized in that: The bottom of the gear plate (81) is provided with a plurality of limiting grooves (12) arranged in a circumferential manner around the center of the circle, and the workbench (1) is provided with a limiting assembly (13) for limiting the gear plate (81) through the limiting grooves (12) when the gear plate (81) is out of mesh with the rack (16).

8. The rotary disk type continuous processing laser welding device according to claim 7, characterized in that: The limiting assembly (13) comprises a containing box (131) fixedly mounted on the workbench (1) and located directly below the limiting groove (12); a third spring (133) is arranged in the containing box (131); and an extrusion block (132) is slidably connected in the containing box (131) via the third spring (133); Both sides of the extrusion block (132) along the moving direction of the moving plate (144) are wedge-shaped structures, and an extrusion plate (17) is fixedly provided on the rack (16). Before the rack (16) meshes with the gear plate (81), the extrusion plate (17) first contacts the extrusion block (132); The top end of the extrusion block (132) is adapted to the structure of the limiting groove (12).

9. The rotary disk type continuous processing laser welding device according to claim 1, characterized in that: The pre-fixing assembly (5) comprises a mounting plate (51) fixedly mounted on the conveying device (4), the mounting plate (51) being symmetrically fixedly mounted with fixing plates (52) at both ends perpendicular to the conveying direction of the conveying device (4), the fixing plate (52) being provided with a sliding cavity (53), the sliding cavity (53) being provided with a first spring (55), and the sliding cavity (53) being slidably connected with a clamping block (54) via the first spring (55); A positioning plate (56) is fixedly provided on the side of the mounting plate (51) away from the push rod (15), and a through opening of a wedge-shaped structure is formed between the two positioning plates (56) along the extension direction of the push rod (15), and one end of the through opening away from the push rod (15) is adapted to the outer diameter of the workpiece; A clamping opening adapted to the outer diameter of the workpiece is formed between the two clamping blocks (54), and the top end of the clamping block (54) is a wedge-shaped structure; A connecting groove plate (10) adapted to the workpiece is fixedly provided at a position adjacent to the through-opening on the conveying frame (3), a positioning groove (9) adapted to the workpiece is radially provided on the rotating disk (6), one end of the connecting groove plate (10) is connected to the positioning groove (9), and the other end of the connecting groove plate (10) is connected to the through-opening formed by the two positioning plates (56); Furthermore, one end of the positioning groove (9) away from the connecting groove plate (10) is located at the center of the fixing mechanism (8).

10. The rotary disk type continuous processing laser welding device according to claim 1, characterized in that: Annular air bags (145) are symmetrically arranged on both sides of the movable plate (144) in the installation box (141); the tops of the ends of the annular air bags (145) that are away from each other are connected to air blowing pipes (149); the air blowing pipes (149) on the two annular air bags (145) are connected to each other; the ends of the air blowing pipes (149) that are away from the annular air bags (145) are arranged at positions where workpieces are to be welded near the center of the fixing mechanism (8); and the bottoms of the ends of the annular air bags (145) that are away from each other are connected to ventilation pipes (150); The blowing tube (149) is provided with a one-way valve that allows only outflow but not inflow, compared to the annular airbag (145), and the ventilation tube (150) is provided with a one-way valve that allows only inflow but not outflow, compared to the annular airbag (145).

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