AI automatic laser spot welding detection packaging equipment

Abstract

The invention discloses AI automatic laser spot welding detection packaging equipment, and relates to the field of laser spot welding, the AI automatic laser spot welding detection packaging equipment comprises a control base, the upper end of the control base is connected with a laser welding mechanism, a bracket is fixed on the side surface of the control base, a rotating shaft is rotatably connected in the bracket, rotating rollers are fixed outside the rotating shaft, and a crawler belt is connected between the two rotating rollers; a plurality of clamping mechanisms arranged at equal intervals are fixed to the crawler belt, through grooves are formed in the positions, corresponding to the clamping mechanisms, of the crawler belt, grooves are formed in the side face of the control base and correspond to the laser welding mechanisms in position, and abutting mechanisms are arranged on one sides of the laser welding mechanisms and correspond to the abutting mechanisms in position. A conveying mechanism rotationally connected to the interior of the support is arranged, the conveying mechanism is located below the abutting mechanism, and a driving mechanism is arranged outside the rotating shaft; automation in laser electric welding can be improved, the stability of welding points is ensured, then the welding quality is improved, meanwhile, detection is conducted after welding, and automatic separation of defective products is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser spot welding, and in particular to an AI automatic laser spot welding detection and packaging device. Background Art

[0002] Laser spot welding machine uses high-energy laser pulses to locally heat the material in a small area. The energy of laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool. It is a new type of welding method. Laser welding is mainly used for welding thin-walled materials and precision parts. It can realize spot welding, butt welding, lap welding, sealing welding, etc. It has a high aspect ratio, a small weld width, a small heat-affected zone, small deformation, fast welding speed, smooth and beautiful welds, no post-welding treatment or only simple treatment, high weld quality, no pores, can be precisely controlled, small focusing spot, high positioning accuracy, and easy automation.

[0003] Furthermore, for precision parts such as the casing used to install semiconductor integrated circuit chips, it plays the role of placing, fixing, sealing, protecting the chip and enhancing the electrical and thermal performance. It is also a bridge between the internal world of the chip and the external circuit. The contacts on the chip are connected to the pins of the package casing with wires, and these pins are connected to other devices through wires on the printed circuit board.

[0004] In the related art, after the chip is packaged, its pins need to be electrically connected to the integrated circuit board. The connection method is usually spot welding. The distance between the pins of the chip package is the same, and the distance between each spot welding position is fixed. During each spot welding operation, the operator needs to position and adjust the spot welding position, move the spot welding machine or move the circuit board to align the spot welding machine with the pins.

[0005] Regarding the above-mentioned related technologies, the inventors believe that there are the following defects: the spot welding machine is aligned with the integrated circuit board through manual movement. During a long time and multiple movements, errors are prone to occur in the moving distance, which can easily lead to spot welding position deviation, thereby causing a decrease in the quality of the spot welding process. Summary of the invention

[0006] The purpose of the present invention is to improve the automation in laser welding, ensure the stability of welding points, and thus improve the welding quality. At the same time, detection is performed after welding to achieve automatic separation of defective products.

[0007] To achieve the above object, the present invention provides the following technical solutions: An AI automatic laser spot welding detection and packaging device comprises a control base, wherein the upper end of the control base is connected to a laser welding mechanism, a bracket fixed to the side of the control base is provided on one side of the control base, a rotating shaft is rotatably connected inside the bracket, two rotating shafts are provided, a rotating roller is fixed outside the rotating shaft, a track is connected between the two rotating rollers, a plurality of equidistantly arranged clamping mechanisms are fixed on the track, the clamping mechanisms are used to fix the welding workpiece, a through groove is provided at a position of each clamping mechanism on the track, a control device for controlling the operation of the laser welding mechanism is provided inside the control base, a groove is provided on the side of the control base, the groove is provided corresponding to the position of the laser welding mechanism, a resistance mechanism is provided on one side of the laser welding machine mechanism, the resistance mechanism is used to open the clamping mechanism, a transport mechanism rotatably connected inside the bracket is provided corresponding to the position of the resistance mechanism, the transport mechanism is located below the resistance mechanism, wherein a driving mechanism is provided outside the rotating shaft for driving the track to rotate differentially.

[0008] As a preferred solution of the present invention, the driving mechanism includes a first gear and a second gear fixed outside the rotating shaft, the radius of the first gear is equal to that of the second gear, and the number of teeth of the first gear is smaller than that of the second gear.

[0009] As a preferred solution of the present invention, a first driving gear is meshed with the outside of the first gear, and a second driving gear is meshed with the outside of the second gear. Both the first driving gear and the second driving gear are half gear structures. The meshing time of the first driving gear and the second driving gear is alternate. When the first driving gear is meshed with the first gear, the second driving gear remains in an idling state. A driving shaft is inserted into the inside of the first driving gear and the second driving gear, and a motor is connected to one end of the driving shaft, and the motor screw is installed on the bracket.

[0010] As a preferred embodiment of the present invention, the clamping mechanism includes a fixed plate fixed on the track, a through hole is provided on one side of the fixed plate, the through hole and the through groove are located correspondingly, clamping plates are provided on both sides of the through hole, a first spring is fixed to the end of the clamping plate facing the inner wall of the fixed plate, several first springs are provided along the length direction of the clamping plate, and the other end of the first spring is fixed to the inner wall of the fixed plate.

[0011] As a preferred embodiment of the present invention, the resistance mechanism includes a fixed rail fixed on the control base, one end of the fixed rail is arc-shaped, a sliding block is slidably connected inside the fixed rail, a second spring is fixed to the side of the sliding block, the second spring is fixedly connected to a connecting block away from the sliding block, a rubber rack is fixed to the end of the connecting block away from the second spring, a third driving gear is meshed with the rubber rack away from the connecting block, the third driving gear rotates inside the control base, the third driving gear is connected to a servo motor, the rubber gear is set with a pointed end facing the fixed disk end, and the front end of the rubber gear slides along the inner wall of the clamping plate in resistance.

[0012] As a preferred solution of the present invention, the servo motor electrical signal is connected to a beam laser control switch, the transmitting end of the beam laser control switch is located below the groove, the receiving end of the beam laser control switch is located above the groove, and both the transmitting end and the receiving end are fixed on the control base.

[0013] As a preferred embodiment of the present invention, the transport mechanism includes a support frame fixed on a bracket, a conical roller is rotatably connected inside the support frame, a plurality of conical rollers are provided along the length direction of the support frame, and the plurality of conical rollers are symmetrically arranged about the support frame, the inside of the conical roller is covered with a conveyor belt, and the conveyor is driven to rotate when the conical roller rotates, a connecting rod is fixed inside one of the conical rollers, the connecting rod extends along one end of the support frame, and a motor is connected to the extended end.

[0014] As a preferred solution of the present invention, a magnet is embedded on the side of the conical roller, a metal block is embedded on the inner wall of the conveyor belt, and the magnet is adsorbed on the metal block.

[0015] In summary, the beneficial technical effects of the present invention are: 1. A driving mechanism is set, wherein the number of teeth of the first driving gear and the second driving gear are not equal, and the number of teeth of the second driving gear is greater than that of the first driving gear. Then, when the second driving gear is used as the driving member of the crawler track under the drive of the motor with equal power, the rotation speed of the crawler track decreases, and then the first driving gear drives the crawler track to rotate, and the fixed plate moves to the bottom of the laser welding mechanism, and the welding workpiece is placed inside the next fixed plate. Then, after the fixed plate moves a spacing, it is switched to the second driving gear for driving. At this time, the fixed plate moves slowly along the bottom of the laser welding mechanism for welding. After the welding is completed, it is switched to the first driving gear again. This reciprocating process can automatically perform welding and feeding, effectively improving the degree of automation of welding. At the same time, during the welding process, the welding workpiece is kept moving at a uniform speed to ensure the welding quality. 2. Set the distance between the rack and the laser welding mechanism to be the spacing distance between the two fixed plates, and then the fixed plate at the rack passes through the opposing laser switch. Since there are gaps and holes at the unsuccessful welding location, the laser can pass through the hole location, and then the receiving end can still receive the laser. At this time, the opposing laser switch can trigger an electrical signal to control the rotation of the third drive gear, thereby driving the rack to move and resisting the movement of the clamping plate, so that the unsuccessful welded workpiece falls freely onto the transmission track below, thereby realizing the automatic separation of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification, but do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of an AI automatic laser spot welding detection and packaging device in this embodiment; Figure 2 This is an AI automatic laser spot welding detection packaging device of this embodiment. Figure 1 The enlarged schematic diagram at A in the middle; Figure 3 This is an AI automatic laser spot welding detection packaging device of this embodiment. Figure 1 The enlarged schematic diagram of point B in the middle; Figure 4 This is an AI automatic laser spot welding detection packaging device of this embodiment. Figure 1 Enlarged schematic diagram at point C in the middle.

[0017] In the figure, 1. control base; 2. laser welding mechanism; 3. bracket; 4. rotating shaft; 5. rotating roller; 6. crawler track; 7. through slot; 8. groove; 9. first gear; 10. second gear; 11. first driving gear; 12. second driving gear; 13. driving shaft; 14. motor; 15. fixed plate; 16. through hole; 17. clamping plate; 18. first spring; 19. fixed track; 20. sliding block; 21. second spring; 22. connecting block; 23. rubber rack; 24. third driving gear; 25. servo motor; 26. opposite laser control switch; 27. supporting frame; 28. conical roller; 29. ​​conveyor belt; 30. connecting rod; 31. magnet; 32. metal block; 33. motor. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0019] 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.

[0020] See also Figure 1-4The present invention provides a technical solution: an AI automatic laser spot welding detection and packaging device, the device includes a control base 1, a laser welding mechanism 2 is connected to the upper end of the control base 1, a bracket 3 fixed to the side of the control base 1 is provided on one side of the control base 1, a rotating shaft 4 is rotatably connected inside the bracket 3, two rotating shafts 4 are provided, a rotating roller 5 is fixed outside the rotating shaft 4, a crawler 6 is connected between the two rotating rollers 5, a plurality of equidistantly arranged clamping mechanisms are fixed on the crawler 6, the clamping mechanism is used to fix the welding workpiece, and a through groove 7 is provided at the position of each clamping mechanism of the crawler 6, a control device for controlling the operation of the laser welding mechanism 2 is provided inside the control base 1, a groove 8 is provided on the side of the control base 1, and the groove 8 is provided corresponding to the position of the laser welding mechanism 2, a resistance mechanism is provided on one side of the laser welding machine mechanism, and the resistance mechanism is used to open the clamping mechanism, and a transportation mechanism rotatably connected to the inside of the bracket 3 is provided corresponding to the position of the resistance mechanism, and the transportation mechanism is located below the resistance mechanism, wherein a driving mechanism is provided outside the rotating shaft 4 for driving the crawler 6 to rotate differentially.

[0021] The driving mechanism includes a first gear 9 and a second gear 10 fixed outside the rotating shaft 4 . The radius of the first gear 9 is equal to that of the second gear 10 , and the number of teeth of the first gear 9 is smaller than that of the second gear 10 .

[0022] Specifically, a first driving gear 11 is meshed on the outside of the first gear 9, and a second driving gear 12 is meshed on the outside of the second gear 10. Both the first driving gear 11 and the second driving gear 12 are semi-gear structures. The meshing time of the first driving gear 11 and the second driving gear 12 is alternate. When the first driving gear 11 is meshed with the first gear 9, the second driving gear 12 remains in an idling state. A driving shaft 13 is inserted into the first driving gear 11 and the second driving gear 12. One end of the driving shaft 13 is connected to a motor 14, and the motor 14 is screwed on the bracket 3.

[0023] The first drive gear 11 and the second drive gear 12 are kept rotating synchronously, and when the first drive gear 11 is meshed with the first gear 9, the second gear 10 and the second drive gear 12 are kept idling, and when the second drive gear 12 is meshed with the second gear 10, the first gear 9 is kept idling.

[0024] When the motor 14 is driven, the motor 14 can drive the driving shaft 13 to rotate, and then the driving shaft 13 drives the first driving gear 11 and the second driving gear 12 to rotate. As the driving shaft 13 continues to rotate, the first driving gear 11 meshes with the first gear 9, driving the first gear 9 to rotate. At this time, the track 6 starts to rotate. At the same time, as the first driving gear 11 continues to rotate, the latching teeth thereon are no longer in contact with the first gear 9, and then the second driving gear 12 starts to mesh with the second gear 10, and the track 6 is driven to rotate by the second driving gear 12. In this embodiment, the number of teeth of the first driving gear 11 and the second driving gear 12 are not equal, and the number of teeth of the second driving gear 12 is greater than the number of teeth of the first driving gear 11, and then under the drive of the motor 14 of equal power, when the second driving gear 12 is used as the driving member of the track 6, the rotation speed of the track 6 decreases.

[0025] Among them, the clamping mechanism includes a fixed plate 15 fixed on the track 6, a through hole 16 is provided on one side of the fixed plate 15, the through hole 16 is located corresponding to the through slot 7, and clamping plates 17 are provided on both sides of the through hole 16. The clamping plate 17 is fixed with a first spring 18 toward the inner wall end of the fixed plate 15. Several first springs 18 are provided along the length direction of the clamping plate 17. The other end of the first spring 18 is fixed on the inner wall of the fixed plate 15, and the welding workpiece is clamped and fixed by two clamping plates 17.

[0026] Among them, the resistance mechanism includes a fixed rail 19 fixed on the control base 1, one end of the fixed rail 19 is arc-shaped, and a sliding block 20 is slidably connected inside the fixed rail 19. A second spring 21 is fixed to the side of the sliding block 20, and the second spring 21 is fixedly connected to the end away from the sliding block 20 with a connecting block 22. A rubber rack 23 is fixed to the end of the connecting block 22 away from the second spring 21, and the rubber rack 23 is meshed with a third driving gear 24 on the side away from the connecting block 22. The third driving gear 24 rotates inside the control base 1, and the third driving gear 24 is connected to a servo motor 25. The rubber gear is set with a pointed end facing the fixed disk 15, and the front end of the rubber gear slides along the inner wall of the clamping plate 17 in resistance.

[0027] At the same time, the servo motor 25 is electrically connected to a laser beam control switch 26 , the transmitting end of the laser beam control switch 26 is located below the groove 8 , and the receiving end of the laser beam control switch 26 is located above the groove 8 , and both the transmitting end and the receiving end are fixed on the control base 1 .

[0028] When the servo motor 2514 drives the third drive gear 24 to rotate, after the third drive gear 24 rotates, the rack starts to rotate. In the present embodiment, when the servo motor 25 rotates forward, the rack is kept moving in the direction toward the fixed disk 15, and when the rack moves, the connecting block 22, the second spring 21 and the sliding block 20 are driven to move. The sliding block 20 slides along the inside of the fixed track 19. Since the fixed track 19 is in an arc shape, when the sliding block 20 moves to the arc section of the fixed track 19, the second spring 21 is stretched, and the connecting block 22 is pulled toward the side of the fixed track 19, and the rack starts to bend. At this time, the front end of the rack enters the inner wall of the clamping plate 17. As the rack continues to bend, the rack continues to resist the movement of the clamping plate 17. At this time, the first spring 18 is compressed, and the distance between the two clamping plates 17 continues to increase, and the welding workpiece between the two clamping plates 17 falls freely along the through groove 7.

[0029] Among them, the transportation mechanism includes a support frame 27 fixed on the bracket 3, and a conical roller 28 is rotatably connected inside the support frame 27. Several conical rollers 28 are provided along the length direction of the support frame 27, and the several conical rollers 28 are symmetrically arranged about the support frame 27. The inside of the conical roller 28 is covered with a conveyor belt 29. When the conical roller 28 rotates, it drives the transport to rotate. A connecting rod 30 is fixed inside one of the conical rollers 28, and the connecting rod 30 extends along one end of the support frame 27, and the extended end is connected to a motor 33.

[0030] A magnet 31 is embedded on the side of the conical roller 28, and a metal block 32 is embedded on the inner wall of the conveyor belt. The magnet 31 is attracted to the metal block 32. When the conveyor belt rotates above the conical roller 28, the magnet 31 attracts the conveyor belt to form a V-shape for transmission.

[0031] The fallen welding workpiece falls on the conveyor belt and is located at the V-shaped structure, which receives the welding workpiece and prevents the welding workpiece from falling.

[0032] In the present invention, the meshing driving stroke of the first driving gear 11 and the first gear 9 is set to be consistent with the spacing between the two fixed disks 15, and the meshing driving stroke of the second driving gear 12 and the second gear 10 is set to be consistent with the width of the fixed disk 15; during specific processing, the workpiece to be welded is placed between the two clamping plates 17, and then the motor 14 is turned on. After the motor 14 is driven, the first driving gear 11 first drives the track 6 to rotate, and the fixed disk 15 moves to the bottom of the laser welding mechanism 2. At the same time, the welding workpiece is placed inside the next fixed disk 15, and then after the fixed disk 15 moves a spacing, it is switched to the second driving gear 12 for driving. At this time, the fixed disk 15 moves slowly along the bottom of the laser welding mechanism 2 for welding. After welding is completed, it is switched to the first driving gear 11 again. This reciprocating process can automatically perform welding and feeding.

[0033] After welding, the workpiece continues to rotate with the track 6 to the next fixed disk 15 spacing position, stops, and starts to move slowly. Therefore, in this embodiment, the distance between the rack and the laser welding mechanism 2 is the spacing distance between the two fixed disks 15, and then the fixed disk 15 at the rack passes through the opposing laser switch. Since there are gaps and holes at the unsuccessful welding, the laser can pass through the hole position, and then the receiving end can still receive the laser. At this time, the opposing laser switch can trigger an electrical signal to control the rotation of the third drive gear 24, thereby driving the rack to move, resisting the movement of the clamping plate 17, so that the unsuccessful welding workpiece falls freely onto the transmission track 6 below, thereby separating the defective products.

[0034] The laser welding mechanism and its corresponding control equipment are both conventional laser welding technologies.

[0035] 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.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An AI automatic laser spot welding detection and packaging equipment, characterized in that: The device comprises a control base (1), the upper end of the control base (1) is connected to a laser welding mechanism (2), a bracket (3) fixed to the side of the control base (1) is provided on one side of the control base (1), a rotating shaft (4) is rotatably connected inside the bracket (3), two rotating shafts (4) are provided, a rotating roller (5) is fixed outside the rotating shaft (4), a crawler (6) is connected between the two rotating rollers (5), a plurality of equidistantly arranged clamping mechanisms are fixed on the crawler (6), the clamping mechanisms are used to fix the welding workpiece, and the crawler (6) corresponds to each clamping mechanism at a position A through groove (7) is provided, a control device for controlling the operation of the laser welding mechanism (2) is arranged inside the control base (1), a groove (8) is provided on the side of the control base (1), the groove (8) is arranged corresponding to the position of the laser welding mechanism (2), a resistance mechanism is provided on one side of the laser welding mechanism, the resistance mechanism is used to open the clamping mechanism, a transport mechanism rotatably connected to the inside of the bracket (3) is provided corresponding to the position of the resistance mechanism, the transport mechanism is located below the resistance mechanism, wherein a driving mechanism is provided outside the rotating shaft (4) for driving the crawler (6) to rotate differentially.

2. The AI ​​automatic laser spot welding detection and packaging equipment according to claim 1 is characterized in that: The driving mechanism comprises a first gear (9) and a second gear (10) fixed outside the rotating shaft (4); the radius of the first gear (9) and the second gear (10) are equal, and the number of teeth of the first gear (9) is smaller than the number of teeth of the second gear (10).

3. The AI ​​automatic laser spot welding detection and packaging equipment according to claim 2 is characterized in that: The first gear (9) is externally meshed with a first driving gear (11), and the second gear (10) is externally meshed with a second driving gear (12). Both the first driving gear (11) and the second driving gear (12) are half-gear structures. The first driving gear (11) and the second driving gear (12) are meshed at alternate times. When the first driving gear (11) is meshed with the first gear (9), the second driving gear (12) remains in an idling state. A driving shaft (13) is inserted into the first driving gear (11) and the second driving gear (12). One end of the driving shaft (13) is connected to a motor (14), and the motor (14) is screwed onto the bracket (3).

4. The AI ​​automatic laser spot welding detection and packaging equipment according to claim 1 is characterized in that: The clamping mechanism comprises a fixed plate (15) fixed on the crawler (6), a through hole (16) is provided on one side of the fixed plate (15), the through hole (16) is located corresponding to the through groove (7), clamping plates (17) are provided on both sides of the through hole (16), a first spring (18) is fixed on the end of the clamping plate (17) facing the inner wall of the fixed plate (15), a plurality of first springs (18) are provided along the length direction of the clamping plate (17), and the other end of the first spring (18) is fixed on the inner wall of the fixed plate (15).

5. The AI ​​automatic laser spot welding detection and packaging equipment according to claim 4 is characterized in that: The abutment mechanism comprises a fixed rail (19) fixed on the control base (1), one end of the fixed rail (19) is in an arc shape, a sliding block (20) is slidably connected inside the fixed rail (19), a second spring (21) is fixed on the side of the sliding block (20), a connecting block (22) is fixedly connected to the end of the second spring (21) away from the sliding block (20), a rubber rack (23) is fixed to the end of the connecting block (22) away from the second spring (21), a third driving gear (24) is meshed with the side of the rubber rack (23) away from the connecting block (22), the third driving gear (24) rotates inside the control base (1), the third driving gear (24) is connected to a servo motor (25), the rubber gear is set with a tip end facing the fixed disk (15), and the front end of the rubber gear slides along the inner wall of the clamping plate (17) in abutment.

6. The AI ​​automatic laser spot welding detection and packaging equipment according to claim 5 is characterized in that: The servo motor (25) is electrically connected to a laser beam control switch (26), a transmitting end of the laser beam control switch (26) is located below the groove (8), a receiving end of the laser beam control switch (26) is located above the groove (8), and both the transmitting end and the receiving end are fixed on the control base (1).

7. The AI ​​automatic laser spot welding detection and packaging equipment according to claim 1 is characterized in that: The transport mechanism comprises a support frame (27) fixed on the bracket (3), a conical roller (28) is rotatably connected inside the support frame (27), a plurality of conical rollers (28) are provided along the length direction of the support frame (27), the plurality of conical rollers (28) are symmetrically arranged about the support frame (27), a conveyor belt (29) is covered inside the conical roller (28), and the conical roller (28) drives the conveyor to rotate when rotating, a connecting rod (30) is fixed inside one of the conical rollers (28), the connecting rod (30) extends out along one end of the support frame (27), and a motor is connected to the extended end.

8. The AI ​​automatic laser spot welding detection and packaging equipment according to claim 7 is characterized in that: A magnet (31) is embedded on the side of the conical roller (28), a metal block (32) is embedded on the inner wall of the conveyor belt, and the magnet (31) and the metal block (32) are adsorbed.

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