Welding machine and process for chip in current sensor

Abstract

The invention provides a welding machine and process for a chip in a current sensor. The welding machine comprises a supporting table and a supporting frame used for supporting the supporting table. The rotating disc is externally connected with a first driving mechanism used for driving the rotating disc to rotate. A profiling groove is formed in the top of each supporting seat, a shell of a current sensor is clamped in each profiling groove, and the supporting seats are located at the top of the rotating disc; the welding base is externally connected with a second driving mechanism used for controlling the position of the welding base, a laser head and a wire feeding mechanism are arranged on the welding base, the wire feeding mechanism is used for conveying tin wires, and the laser head is used for melting the free ends of the tin wires. According to the welding machine for the chip in the current sensor, the welding efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of production of current sensors, and relates to a welding machine and process for a chip in a current sensor. Background Art

[0002] A current sensor is a detection device that can sense the information of the measured current and can transform the sensed information into an electrical signal or other required form of information output that meets certain standards according to certain rules, so as to meet the requirements of information transmission, processing, storage, display, recording and control. Current sensors are also called magnetic sensors, which can be used in household appliances, smart grids, electric vehicles, automobiles, wind power generation, etc. There are many magnetic sensors used in our lives, such as computer hard drives, compasses, household appliances, etc.

[0003] At present, the structure of the common current sensor in the car is as follows Fig.21 As shown, it mainly includes a shell 81, a fisheye terminal 82, a PCB board 83 and a chip, and the chip also includes a pin 84 (or pin), and is connected to the PCB board 83 through the pin 84. At the same time, there is a capacitor 85 on the PCB, and each chip side has a corresponding capacitor 85; during the production process, the fisheye terminal 82, the PCB board 83 and the chip need to be assembled on the shell 81 to form a complete product. Summary of the invention

[0004] The purpose of the present invention is to provide a welding machine and process for a chip in a current sensor, aiming to achieve the effects of efficient assembly and welding.

[0005] In order to solve the above technical problems, the present invention provides a welding machine for a chip in a current sensor, comprising:

[0006] A support platform and a support frame for supporting the support platform;

[0007] A rotating disk, wherein the rotating disk is externally connected to a first driving mechanism for driving the rotating disk to rotate;

[0008] Support seats, each of which has a profiled groove on its top, each of which is used to engage a housing of a current sensor, and the support seats are located on the top of the rotating disk;

[0009] The welding seat is externally connected to a second driving mechanism for controlling the position of the welding seat. The welding seat is provided with a laser head and a wire feeding mechanism. The wire feeding mechanism is used to transport the tin wire, and the laser head is used to melt the free end of the tin wire.

[0010] The present invention is further configured such that the wire feeding mechanism comprises a tin wire rack vertically arranged on the top of the welding seat, a tin wire barrel rod is horizontally arranged on the side of the tin wire rack, a tin wire barrel is rotatably sleeved on the outer wall of the tin wire barrel rod, and a tin wire is rotatably wound around the tin wire barrel;

[0011] A wire guide cylinder is obliquely arranged at the bottom of the support seat, the tin wire movably passes through the wire guide cylinder, and the bottom of the wire guide cylinder faces the PCB board at the corresponding position;

[0012] An active wire feeding wheel and two passive wire feeding wheels are rotatably arranged on the side of the support seat, a motor for driving the active wire feeding wheel to rotate is arranged on the outer side of the active wire feeding wheel, the two passive wire feeding wheels are both located on the side of the active wire feeding wheel, a wire feeding piece is movably sleeved on the outer wall of the two passive wire feeding wheels, the outer wall of the wire feeding piece is attached to the outer wall of the active wire feeding wheel, and the part of the tin wire between the tin wire drum and the wire guide drum is located between the wire feeding piece and the outer wall of the active wire feeding wheel;

[0013] It also includes a guide cylinder, the top of which is used to receive the tin wire at the bottom of the wire feeding member, and the bottom of the guide cylinder is used to feed the tin wire into the top of the wire guide cylinder.

[0014] The present invention is further configured such that a clearance hole is opened in the middle of the support platform, the first driving mechanism includes a vertical frame in a vertical shape, a vertical portion is rotatably connected and arranged on the outer wall of the vertical frame, the bottom of the rotating disk is connected to the top of the vertical portion, and a plurality of passive teeth are vertically arranged on the side of the vertical portion;

[0015] The first driving mechanism also includes a power motor arranged on the support frame, a driving gear is arranged on the output shaft of the power motor, the driving gear is meshed with the passive gear, and both the driving gear and the passive gear are movably located in the clearance hole.

[0016] The present invention is further configured such that the second driving mechanism comprises:

[0017] A first frame, the first frame is in an inverted U shape and is arranged on the top of the support platform;

[0018] A first motor, the first motor is horizontally arranged on the outer side of the first frame;

[0019] A first screw rod, both ends of which are rotatably connected to the middle parts of both ends of the first frame, and an outer end of the first screw rod is connected to the output shaft of the first motor;

[0020] A second frame, wherein the second frame is vertically arranged on the top of the first frame, the bottom of the second frame is movably sleeved on the middle of the first frame, and the first screw rod is threadedly matched with the bottom end of the second frame;

[0021] A top plate body and a bottom plate body, wherein the top plate body is arranged on the top of the second frame body, and the bottom plate body is arranged on the bottom of the second frame body, and two lifting rails are vertically arranged between the outer ends of the top plate body and the bottom plate body, and the outer sides of the lifting rails are vertically opened with lifting grooves with T-shaped cross sections;

[0022] A second motor, the second motor is vertically arranged on the top of the top plate body, a second screw rod is vertically arranged on the output shaft of the second motor, and the second screw rod is rotatably connected to both the top plate body and the bottom plate body;

[0023] A lifting member, wherein two matching parts are vertically arranged on the inner side of the lifting member, the matching parts are movably fitted to the inner wall of the lifting slot, and the inner side of the lifting member is threadably matched with the second screw rod;

[0024] A third frame, the third frame being horizontally arranged on the outside of the lifting member, the length direction of the third frame being perpendicular to the length direction of the first frame, and a translation groove having a T-shaped longitudinal section being horizontally opened on the outside of the third frame;

[0025] A translation member, wherein the translation member is movably attached to the inner wall of the translation slot, and an outer end of the translation member is connected to the welding seat;

[0026] The third motor is arranged at one end of the third frame, and third screw rods are arranged at both ends of the third frame for horizontal rotation. The output shaft of the third motor is connected to the third screw rod, and the third screw rod is threadedly matched with the translation member.

[0027] The present invention is further configured such that a hole for the vertical frame to pass through is opened in the middle of the rotating disk, a fixed disk is fixedly provided on the outer wall of the vertical frame, the fixed disk is located above the rotating disk, an auxiliary frame is vertically provided on the top of the fixed disk, a first cylinder body is vertically provided on the outer side of the auxiliary frame, a U-shaped auxiliary part is horizontally provided at the bottom of the output shaft of the first cylinder body, and the auxiliary part is used to press the tops of both ends of the shell below the welding seat.

[0028] The present invention is further configured such that six support seats are provided on the rotating disk, and the six support seats are evenly distributed on the rotating disk in a circular shape;

[0029] The support platform includes upper and lower stations, a pressing station, a welding station, an inspection station, a painting station and a material unloading station distributed in sequence, and the six support seats are respectively opposite to the upper and lower stations, the pressing station, the welding station, the inspection station, the painting station and the material unloading station, and the welding seat is located at the welding station;

[0030] The pressing station is provided with a pressing unit, and the pressing unit is used to press the PCB board downward;

[0031] The inspection station is provided with an inspection unit, and the inspection unit is used to inspect the welding condition;

[0032] The painting station is provided with a painting unit, and the painting unit is used to paint the welding position;

[0033] The unloading station is provided with an unloading machine unit, and the unloading machine unit is used to take out the unqualified products after inspection.

[0034] The present invention is further configured such that the pressing unit includes a fourth frame body arranged on the top of the support platform, the fourth frame body is in a U-shape with an opening downward, a fourth motor is vertically arranged on the top of the fourth frame body, a fourth screw rod is arranged on the output shaft of the fourth motor, and the top and bottom of the fourth screw rod are rotatably connected to the fourth frame body and the support platform respectively;

[0035] The outer side of the fourth frame is vertically movably sleeved with a compression sleeve, the inner side of the compression sleeve is threadedly matched with the fourth screw rod, a horizontal plate is horizontally arranged on the outer side, two hinge seats are relatively arranged on the lower side of the horizontal plate, a hinge table is hingedly arranged between the two hinge seats, and there is a set pressure between the outer side of the hinge table and the inner sides of the two hinge seats, a transmission member is arranged at the bottom of the hinge table, the middle part of the transmission member is connected to the hinge table, and through holes are vertically penetrated at both ends, and an annular pressure ring is arranged on the top inner wall of the through hole;

[0036] It also includes a connecting block, both ends of the connecting block are vertically provided with anti-slip rods, the top of the anti-slip rod is provided with an anti-slip disk, the outer wall of the anti-slip rod is movably fitted to the center of the pressure ring, the bottom of the anti-slip disk is in contact with the top of the transmission member, the top of the connecting block is provided with an elastic member that is continuously in a compressed state, the top of the elastic member is in contact with the bottom of the pressure ring, and the bottom of the middle part of the transmission member is provided with a force block, when the bottom of the force block is in contact with the top of the connecting block, the anti-slip disk and the transmission member are in a separated state;

[0037] A clamping block is horizontally arranged at the bottom of the connecting block, and four air-avoiding openings are opened at the bottom of the clamping block, one of the air-avoiding openings is used for the top of the fisheye terminal to enter, and the other three air-avoiding openings are used for adjacent pins and capacitors to enter respectively.

[0038] The present invention is further configured that the paint spraying unit comprises:

[0039] A fifth frame is horizontally arranged on the top of the support platform, the fifth frame is in a U-shape with an opening downward, a fifth motor is horizontally arranged at the outer end of the fifth frame, and a fifth screw rod is horizontally rotatably arranged at both ends of the fifth frame, and one end of the fifth screw rod is connected to the output shaft of the fifth motor;

[0040] A sixth frame, the bottom of which is movably sleeved on the middle of the fifth frame, and the bottom end of which is threadably engaged with the fifth screw rod;

[0041] A seventh frame, wherein the seventh frame is horizontally arranged on the inner side of the top of the sixth frame, the length direction of the seventh frame is perpendicular to the length direction of the fifth frame, the cross section of the seventh frame is in a square shape, a sixth motor is horizontally arranged at one end of the seventh frame, a sixth screw rod is horizontally rotatably arranged between the two ends of the seventh frame, and one end of the sixth screw rod is connected to the output shaft of the sixth motor;

[0042] A paint spray frame, the paint spray frame is horizontally movable and buckled on the outer side of the seventh frame, and the inner end of the paint spray frame is threadedly matched with the sixth screw rod;

[0043] A cleaning nozzle and a paint spray head, wherein the cleaning nozzle and the paint spray head are both arranged on the outside of the paint spray frame, the cleaning nozzle is used to blow negative ion wind to the top of the PCB board, and the paint spray head is used to spray conformal paint on the PCB board;

[0044] The second cylinder body is horizontally arranged on the fixed plate, and a paint blocking member with an L-shaped longitudinal section is arranged on the piston rod of the second cylinder body. The second cylinder body is used for driving the paint blocking member to approach or move away from the fifth frame, and a paint hole is vertically opened on the horizontal part of the paint blocking member, and the pins and capacitors are located below the paint hole when spraying paint.

[0045] The present invention is further configured as follows: the inspection unit includes an eighth frame, the eighth frame is in a U-shape with an opening downward, a seventh motor is horizontally arranged at the outer end of the eighth frame, a seventh screw rod is horizontally rotatably arranged at both ends of the eighth frame, one end of the seventh screw rod is connected to the output shaft of the seventh motor, a ninth frame is movably sleeved on the top of the eighth frame, the bottom end of the ninth frame is threadedly matched with the seventh screw rod, a camera is arranged on the inner side of the top of the ninth frame, and the camera is used to collect image information of the PCB board;

[0046] The unloading unit comprises an unloading plate arranged on the support platform in an inclined shape, an L-shaped unloading rack is arranged on the top of the fixed plate, an unloading rail is arranged horizontally on the top of the unloading rack, an unloading seat is movably buckled on the unloading rail, and a third cylinder for driving the unloading seat to move horizontally is arranged on the unloading rack;

[0047] A fourth cylinder body is vertically arranged on the outer side of the unloading seat, and a pneumatic clamp is arranged on the piston rod of the fourth cylinder body. Both clamping jaws of the pneumatic clamp are provided with clamping members, and the clamping members are used to send the shell from the corresponding support seat to the top of the unloading plate.

[0048] The present invention also provides a process for using a welding machine for a chip in a current sensor as described in any one of the above items, comprising the following steps:

[0049] S1, placing the shell into the contoured groove;

[0050] S2, the rotating disk rotates to send the shell to the bottom of the welding seat;

[0051] S3, the welding seat is driven to move to the specified position;

[0052] S4, the wire feeding mechanism transports the tin wire downward, the laser head emits laser to melt the tin wire, and the molten tin wire flows to the connection between the pin and the PCB board. After one welding is completed, the wire feeding mechanism and the laser head stop;

[0053] S5, the welding seat is driven to the next designated position, and the wire feeding mechanism and the laser head weld the corresponding pins and PCB board here until completion;

[0054] S6, repeat S4-S5 until all pins are soldered;

[0055] S7, the welding seat is reset, and the rotating disk rotates so that the shell moves to the outside of the welding seat;

[0056] S8, remove the welded product and replace it with a new shell.

[0057] Compared with the prior art, the present invention provides a welding machine for the chip in the current sensor. When welding, the shell is first placed in the profiling groove; the rotating disk rotates to send the shell to the bottom of the welding seat; the welding seat is driven to move to the specified position; the wire feeding mechanism conveys the tin wire downward, and the laser head (which is a directly purchased product, used to emit a high-temperature laser to weld the end of the tin wire) emits a laser to melt the tin wire, and the molten tin wire flows to the connection between the pin and the PCB board. After completing one welding, the wire feeding mechanism and the laser head stop; the welding seat is driven to the next specified position, and the wire feeding mechanism and the laser head weld the corresponding pin and PCB board here until it is completed; repeat S4-S5 until all the pins are welded; the welding seat is reset, and the rotating disk rotates to move the shell to the outside of the welding seat; remove the welded product, and put on a new shell. Since the welding process is automatic, the welding efficiency can be well improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 The structure of the welding machine of the chip in the current sensor of the present invention is shown in FIG. Figure 1 ;

[0059] Figure 2 yes Figure 1 A magnified view of part A;

[0060] Figure 3 yes Figure 2 A magnified view of the A1 section;

[0061] Figure 4 yes Figure 1 A magnified view of part B;

[0062] Figure 5 yes Figure 1 Enlarged view of part C;

[0063] Figure 6 The structure of the welding machine of the chip in the current sensor of the present invention is shown in FIG. Figure 2 ;

[0064] Figure 7 yes Figure 6 A magnified view of part D in the middle;

[0065] Figure 8 It is a top view of a welding machine for a chip in a current sensor of the present invention;

[0066] Fig. 9 It is a schematic diagram of a pressing unit in a welding machine for a chip in a current sensor of the present invention;

[0067] Fig.10 yes Fig. 9 Enlarged view of part E in the middle;

[0068] Fig.11 It is a cross-sectional view of a transfer member in a welding machine for a chip in a current sensor of the present invention;

[0069] Fig.12 It is a schematic diagram of a welding station in a welding machine for a chip in a current sensor of the present invention;

[0070] Fig.13 yes Fig.12 Enlarged view of part F;

[0071] Fig.14 yes Fig.12 Enlarged view of section G;

[0072] Fig.15 yes Fig.12 Enlarged view of section H;

[0073] Fig.16 It is a schematic diagram of an active wire feeding wheel part in a welding machine of a chip in a current sensor of the present invention;

[0074] Fig.17 It is a schematic diagram of an inspection unit in a welding machine for a chip in a current sensor of the present invention;

[0075] Fig.18 It is a schematic diagram of a paint spraying unit in a welding machine for a chip in a current sensor of the present invention;

[0076] Fig.19 yes Fig.18 Enlarged view of the middle J section;

[0077] Fig. 20 It is a schematic diagram of a material unloading unit in a welding machine for a chip in a current sensor of the present invention;

[0078] Fig.21 is a schematic diagram of the current sensor.

[0079] Among them, 1, support platform; 2, support frame; 3, rotating disk; 4, support seat; 5, profiling groove; 6, welding seat; 7, laser head; 8, tin wire rack; 9, tin wire barrel rod; 10, wire guide barrel; 11, active wire feeding wheel; 12, passive wire feeding wheel; 13, wire feeding member; 14, guide barrel; 15, clearance hole; 16, vertical frame; 17, vertical part; 18, passive gear; 19, power motor; 20, active gear; 21, first frame; 22, first motor; 2 3. First screw rod; 24. Second frame; 25. Top plate; 26. Bottom plate; 27. Lifting rail; 28. Lifting slot; 29. ​​Second motor; 30. Second screw rod; 31. Lifting member; 32. Third frame; 32a. Translation slot; 33. Third motor; 34. Third screw rod; 35. Fixed plate; 36. Auxiliary frame; 37. First cylinder; 38. Auxiliary member; 39. Fourth frame; 40. Fourth motor; 41. Fourth screw rod; 42. Pressing sleeve; 43. Horizontal plate; 44. Articulated seat; 45. Articulated platform; 46. Transmission member; 47. Through hole; 48. Pressure ring; 49. Connecting block; 50. Anti-slip rod; 51. Anti-slip plate; 52. Elastic member; 53. Force block; 54. Pressing block; 55. Avoidance; 56. Fifth frame; 57. Fifth motor; 58. Fifth screw rod; 59. Sixth frame; 60. Seventh frame; 61. Sixth motor; 62. Spray paint frame; 63. Cleaning nozzle; 64. Paint spray head; 65, second cylinder body; 66, paint blocking piece; 67, paint hole; 68, eighth frame; 69, seventh motor; 70, seventh screw rod; 71, ninth frame; 72, camera; 73, unloading plate; 74, unloading rack; 75, unloading rail; 76, unloading seat; 77, third cylinder body; 78, fourth cylinder body; 79, pneumatic gripper; 80, clamping piece; 81, shell; 82, fisheye terminal; 83, PCB board; 84, pin; 85, capacitor. DETAILED DESCRIPTION

[0080] The following is a further detailed description of a chip welding machine and process in a current sensor proposed by the present invention in combination with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will become clearer. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. The same or similar reference numerals in the accompanying drawings represent the same or similar components.

[0081] A welding machine for chips in current sensors, such as Figures 1 to 21 As shown, including:

[0082] A support platform 1 and a support frame 2 for supporting the support platform 1;

[0083] A rotating disk 3, wherein the rotating disk 3 is externally connected to a first driving mechanism for driving the rotating disk 3 to rotate;

[0084] Support seats 4, each of which has a contoured groove 5 on its top, each of which is used to engage a housing 81 of a current sensor (wherein the housing 81 is not a structure claimed for protection in the present application and is only used for auxiliary explanation), and the support seats 4 are located on the top of the rotating disk 3;

[0085] The welding seat 6 is externally connected to a second driving mechanism for controlling the position of the welding seat 6. The welding seat 6 is provided with a laser head 7 and a wire feeding mechanism. The wire feeding mechanism is used to transport the tin wire, and the laser head 7 is used to melt the free end of the tin wire.

[0086] The wire feeding mechanism comprises a tin wire rack 8 vertically arranged on the top of the welding seat 6, a tin wire barrel rod 9 is horizontally arranged on the side of the tin wire rack 8, a tin wire barrel is rotatably sleeved on the outer wall of the tin wire barrel rod 9, and a tin wire is rotatably wound around the tin wire barrel;

[0087] A wire guide cylinder 10 is obliquely arranged at the bottom of the support seat 4, and the tin wire moves through the wire guide cylinder 10, and the bottom of the wire guide cylinder 10 faces the PCB board 83 at the corresponding position;

[0088] An active wire feeding wheel 11 and two passive wire feeding wheels 12 are rotatably arranged on the side of the support seat 4, a motor for driving the active wire feeding wheel 11 to rotate is arranged on the outer side of the active wire feeding wheel 11, the two passive wire feeding wheels 12 are both located on the side of the active wire feeding wheel 11, a wire feeding piece 13 (preferably a flexible belt with a certain thickness) is movably sleeved on the outer wall of the two passive wire feeding wheels 12, the outer wall of the wire feeding piece 13 is attached to the outer wall of the active wire feeding wheel 11, and the part of the tin wire between the tin wire drum and the wire guide drum 10 is located between the wire feeding piece 13 and the outer wall of the active wire feeding wheel 11;

[0089] A guide cylinder 14 is also included, the top of which is used to receive the tin wire at the bottom of the wire feeding member 13 , and the bottom of which is used to feed the tin wire into the top of the wire guide cylinder 10 .

[0090] A clearance hole 15 is provided in the middle of the support platform 1, and the first driving mechanism includes a vertical frame 16 in a vertical shape, and a vertical portion 17 is rotatably connected to the outer wall of the vertical frame 16, and the bottom of the rotating disk 3 is connected to the top of the vertical portion 17, and a plurality of passive teeth 18 are vertically provided on the side of the vertical portion 17;

[0091] The first driving mechanism also includes a power motor 19 disposed on the support frame 2 , and a driving gear 20 is disposed on the output shaft of the power motor 19 . The driving gear 20 is meshed with the passive gear 18 , and both the driving gear 20 and the passive gear 18 are movably located in the clearance hole 15 .

[0092] The second driving mechanism comprises:

[0093] A first frame 21, wherein the first frame 21 is in an inverted U shape and is disposed on the top of the support platform 1;

[0094] A first motor 22, wherein the first motor 22 is horizontally disposed on the outer side of the first frame 21;

[0095] A first screw rod 23, both ends of the first screw rod 23 are rotatably connected to the middle parts of both ends of the first frame 21, and the outer end of the first screw rod 23 is connected to the output shaft of the first motor 22;

[0096] The second frame 24 is vertically arranged on the top of the first frame 21, the bottom of the second frame 24 is movably sleeved in the middle of the first frame 21, and the first screw rod 23 is threadedly matched with the bottom end of the second frame 24;

[0097] A top plate body 25 and a bottom plate body 26, wherein the top plate body 25 is arranged on the top of the second frame body 24, and the bottom plate body 26 is arranged on the bottom of the second frame body 24, and two lifting rails 27 are vertically arranged between the outer ends of the top plate body 25 and the bottom plate body 26, and the outer sides of the lifting rails 27 are vertically opened with lifting grooves 28 with a T-shaped cross section;

[0098] A second motor 29, the second motor 29 is vertically arranged on the top of the top plate 25, a second screw rod 30 is vertically arranged on the output shaft of the second motor 29, and the second screw rod 30 is rotatably connected to both the top plate 25 and the bottom plate 26;

[0099] A lifting member 31, wherein two matching parts are vertically arranged on the inner side of the lifting member 31, wherein the matching parts are movably fitted to the inner wall of the lifting slot 28, and the inner side of the lifting member 31 is threadedly matched with the second screw rod 30;

[0100] A third frame 32, the third frame 32 is horizontally arranged on the outer side of the lifting member 31, the length direction of the third frame 32 is perpendicular to the length direction of the first frame 21, and a translation groove 32a with a T-shaped longitudinal section is horizontally opened on the outer side of the third frame 32;

[0101] A translation member, the translation member is movably attached to the inner wall of the translation groove 32a, and the outer end of the translation member is connected to the welding seat 6;

[0102] The third motor 33 is arranged at one end of the third frame 32. The third screw rods 34 are arranged at both ends of the third frame 32 for horizontal rotation. The output shaft of the third motor 33 is connected to the third screw rod 34. The third screw rod 34 is threadedly matched with the translation member.

[0103] A hole is opened in the middle of the rotating disk 3 for the vertical frame 16 to pass through, and a fixed disk 35 is fixedly provided on the outer wall of the vertical frame 16. The fixed disk 35 is located above the rotating disk 3, and an auxiliary frame 36 is vertically provided on the top of the fixed disk 35. A first cylinder body 37 is vertically provided on the outer side of the auxiliary frame 36, and a U-shaped auxiliary part 38 is horizontally provided at the bottom of the output shaft of the first cylinder body 37. The auxiliary part 38 is used to press the tops of both ends of the shell 81 under the welding seat 6.

[0104] Six support seats 4 are arranged on the rotating disk 3, and the six support seats 4 are evenly distributed on the rotating disk 3 in a circular shape;

[0105] The support platform 1 includes upper and lower stations, a pressing station, a welding station, an inspection station, a painting station and a material unloading station, which are distributed in sequence. The six support seats 4 are respectively opposite to the upper and lower stations, the pressing station, the welding station, the inspection station, the painting station and the material unloading station, and the welding seat 6 is located at the welding station;

[0106] The pressing station is provided with a pressing unit, and the pressing unit is used to press the PCB board 83 downward;

[0107] The inspection station is provided with an inspection unit, and the inspection unit is used to inspect the welding condition;

[0108] The painting station is provided with a painting unit, and the painting unit is used to paint the welding position;

[0109] The unloading station is provided with an unloading machine unit, and the unloading machine unit is used to take out the unqualified products after inspection.

[0110] The pressing unit includes a fourth frame 39 disposed on the top of the support platform 1, the fourth frame 39 is in a U-shape with an opening facing downward, a fourth motor 40 is vertically disposed on the top of the fourth frame 39, a fourth screw rod 41 is disposed on the output shaft of the fourth motor 40, and the top and bottom of the fourth screw rod 41 are rotatably connected to the fourth frame 39 and the support platform 1 respectively;

[0111] The outer side of the fourth frame 39 is vertically movably sleeved with a clamping sleeve 42, the inner side of the clamping sleeve 42 is threadedly matched with the fourth screw rod 41, and a horizontal plate 43 is horizontally arranged on the outer side, and two hinge seats 44 are arranged opposite to each other on the lower side of the horizontal plate 43, and a hinge platform 45 is hingedly arranged between the two hinge seats 44, and there is a set pressure between the outer side of the hinge platform 45 and the inner sides of the two hinge seats 44, and a transmission member 46 is arranged at the bottom of the hinge platform 45, and the middle part of the transmission member 46 is connected to the hinge platform 45, and through holes 47 are vertically penetrated at both ends, and an annular pressure ring 48 is arranged on the top inner wall of the through hole 47;

[0112] It also includes a connecting block 49, both ends of which are vertically provided with anti-slip rods 50, the top of which is provided with an anti-slip disk 51, the outer wall of the anti-slip rod 50 is movably fitted to the center of the pressure ring 48, the bottom of the anti-slip disk 51 abuts against the top of the transmission member 46, the top of the connecting block 49 is provided with an elastic member 52 which is continuously in a compressed state, the top of the elastic member 52 abuts against the bottom of the pressure ring 48, and the bottom of the middle part of the transmission member 46 is provided with a force block 53, when the bottom of the force block 53 abuts against the top of the connecting block 49, the anti-slip disk 51 and the transmission member 46 are in a separated state;

[0113] A clamping block 54 is horizontally arranged at the bottom of the connecting block 49, and four air-avoiding openings 55 are opened at the bottom of the clamping block 54. One of the air-avoiding openings 55 is used for the top of the fisheye terminal 82 to enter, and the other three air-avoiding openings 55 are used for adjacent pins and capacitors 85 to enter.

[0114] The paint spraying unit comprises:

[0115] A fifth frame 56 is horizontally arranged on the top of the support platform 1, and the fifth frame 56 is in a U-shape with an opening downward. A fifth motor 57 is horizontally arranged at the outer end of the fifth frame 56, and a fifth screw rod 58 is horizontally rotatably arranged at both ends of the fifth frame 56, and one end of the fifth screw rod 58 is connected to the output shaft of the fifth motor 57;

[0116] A sixth frame 59, the bottom of which is movably sleeved on the middle of the fifth frame 56, and the bottom end of which is threadably engaged with the fifth screw rod 58;

[0117] The seventh frame 60 is horizontally arranged on the inner side of the top of the sixth frame 59, the length direction of the seventh frame 60 is perpendicular to the length direction of the fifth frame 56, the cross section of the seventh frame 60 is in the shape of a square, a sixth motor 61 is horizontally arranged at one end of the seventh frame 60, a sixth screw rod is horizontally rotatably arranged between the two ends of the seventh frame 60, and one end of the sixth screw rod is connected to the output shaft of the sixth motor 61;

[0118] A paint spray frame 62, wherein the paint spray frame 62 is horizontally movable and buckled on the outer side of the seventh frame 60, and the inner end of the paint spray frame 62 is threadedly matched with the sixth screw rod;

[0119] A cleaning nozzle 63 and a paint spray head 64, both of which are arranged on the outside of the paint spray frame 62, the cleaning nozzle 63 is used to blow negative ion wind to the top of the PCB board 83, and the paint spray head 64 is used to spray three-proof paint on the PCB board 83;

[0120] The second cylinder body 65 is horizontally arranged on the fixed plate 35, and a paint blocking member 66 with an L-shaped longitudinal section is arranged on the piston rod of the second cylinder body 65. The second cylinder body 65 is used to drive the paint blocking member 66 to approach or move away from the fifth frame 56. A paint hole 67 is vertically opened on the horizontal part of the paint blocking member 66. When spraying paint, the pins and the capacitor 85 are located below the paint hole 67.

[0121] The inspection unit includes an eighth frame 68, which is in a U-shape with an opening downward, a seventh motor 69 is horizontally arranged at the outer end of the eighth frame 68, and a seventh screw rod 70 is horizontally rotatably arranged at both ends of the eighth frame 68, one end of the seventh screw rod 70 is connected to the output shaft of the seventh motor 69, and a ninth frame 71 is movably sleeved on the top of the eighth frame 68, and the bottom end of the ninth frame 71 is threadedly matched with the seventh screw rod 70, and a camera 72 is arranged on the inner side of the top of the ninth frame 71, and the camera 72 is used to collect image information of the PCB board 83;

[0122] The unloading unit comprises an unloading plate 73 arranged on the support platform 1 in an inclined shape, an L-shaped unloading frame 74 is arranged on the top of the fixed plate 35, and an unloading rail 75 is arranged horizontally on the top of the unloading frame 74, and an unloading seat 76 is movably buckled on the unloading rail 75, and a third cylinder 77 for driving the unloading seat 76 to move horizontally is arranged on the unloading frame 74;

[0123] A fourth cylinder 78 is vertically arranged on the outer side of the unloading seat 76, and a pneumatic clamp 79 is arranged on the piston rod of the fourth cylinder 78. Both clamping jaws of the pneumatic clamp 79 are provided with clamping members 80, and the clamping members 80 are used to send the shell 81 from the corresponding supporting seat 4 to the top of the unloading plate 73.

[0124] The present invention also provides a process for using a welding machine for a chip in a current sensor as described in any one of the above items, comprising the following steps:

[0125] S1, placing the housing 81 into the contoured groove 5;

[0126] S2, the rotating disk 3 rotates to send the shell 81 to the bottom of the welding seat 6;

[0127] S3, the welding seat 6 is driven to move to a specified position;

[0128] S4, the wire feeding mechanism feeds the tin wire downward, the laser head 7 emits a laser to melt the tin wire, and the molten tin wire flows to the connection between the pin 84 and the PCB board 83. After one welding is completed, the wire feeding mechanism and the laser head 7 stop;

[0129] S5, the welding seat 6 is driven to the next designated position, and the wire feeding mechanism and the laser head 7 weld the corresponding pins 84 and the PCB board 83 until completion;

[0130] S6, repeat S4-S5 until all pins 84 are soldered;

[0131] S7, the welding seat 6 is reset, and the rotating disk 3 rotates so that the housing 81 moves to the outside of the welding seat 6;

[0132] S8, remove the welded product and replace it with a new shell 81.

[0133] The present invention provides a welding machine for a chip in a current sensor. When welding, the housing 81 is first placed in the profiling groove 5; the rotating disk 3 rotates to send the housing 81 to the bottom of the welding seat 6; the welding seat 6 is driven to move to a designated position; the wire feeding mechanism conveys the tin wire downward, and the laser head 7 (which is a directly purchased product and is used to emit a high-temperature laser to weld the end of the tin wire) emits a laser to melt the tin wire, and the molten tin wire flows to the connection between the pin 84 and the PCB board 83. After completing one welding, the wire feeding mechanism and the laser head 7 stop; the welding seat 6 is driven to the next designated position, and the wire feeding mechanism and the laser head 7 weld the corresponding pin 84 and the PCB board 83 here until it is completed; repeat S4-S5 until all the pins 84 are welded; the welding seat 6 is reset, and the rotating disk 3 rotates to move the housing 81 to the outside of the welding seat 6; remove the welded product, and put on a new housing 81. Since the welding process is automatic, the welding efficiency can be well improved.

[0134] During actual welding, the welding seat 6 descends and tin wire is ejected at the same time. When the tin wire moves to the top of the welding place (i.e., the clamping place between the pin and the PCB board), the laser head 7 runs and emits laser, the tin wire melts and flows into the welding place, and the tin wire is continuously ejected at the same time. After the tin wire is finished ejected (here it means that the tin wire required for welding at a certain place is finished ejected or sent out, not that all the tin wire on the tin wire tube is finished ejected), the laser will delay for a period of time before stopping the light to ensure the welding quality.

[0135] When actually welding, first the worker needs to pre-insert the fisheye terminal 82 into the housing 81 (or integrate the two through equipment, or the two are already integrated during the production process), and also pre-place the PCB board 83 with the chip into the housing 81; wherein the PCB board 83 has three chips, each chip has three pins 84 (or pins), and the PCB board 83 has holes through which the pins 84 pass; at the same time, there is also a capacitor 85 on the side of each group of three pins 84.

[0136] When placing, it is necessary to first remove the qualified shell 81 on the support seat 4 at the upper and lower stations, and place the shell 81 to be processed (i.e. to be welded) in the profiling groove 5 of the support seat 4 at the upper and lower stations (the shape of the profiling groove 5 is the same as the shape of the bottom of the shell 81, which can just clamp the bottom of the shell 81 to prevent the shell 81 from shaking or moving); then the power motor 19 drives the passive gear 18 to rotate through the active gear 20, and the passive gear 18 drives the rotating disk 3 to rotate 60 degrees through the vertical portion 17, so that the shell 81 at this time moves to the pressing station; then the fourth motor 4 0 drives the fourth screw rod 41 to rotate, thereby lowering the clamping sleeve 42. When the clamping sleeve 42 descends, it also drives the hinge seat 44 and all the structures below; at a certain node, the clamping block 54 contacts the top of the PCB board 83, and then the fourth motor 40 continues to operate to lower the height of the clamping sleeve 42, until the force block 53 applies a certain force to the top of the connecting block 49, at which time the clamping of the PCB board 83 and the shell 81 is completed; finally, the clamping sleeve 42 rises, so that the clamping block 54 is separated from the shell 81 here, so that the support seat 4 here can rotate normally.

[0137] When the PCB board 83 is pre-placed in the housing 81, it is not placed properly (i.e., not horizontally); however, there is a certain pressure between the inner side of the hinge 45 and the hinge seat 44 (the specific pressure can be determined according to the actual situation), and the hinge 45 and the hinge seat 44 bracket form a damping effect, that is, when no external force is applied, the hinge 45 and the hinge seat 44 can ensure that they are relatively still, but if a certain force is applied on one side, the hinge 45 and the hinge seat 44 can still produce a certain rotation; in this case, even if the PCB board 83 is tilted, , that is, one end is slightly higher than the other end. Then, when the pressing block 54 is in the downward process, the bottom of the pressing block 54 will first act on one end of the higher PCB board 83, so that the PCB board 83 will apply a reaction force to the pressing block 54, and enable the hinge table 45 and the hinge seat 44 to rotate relative to each other. In this way, one end of the higher PCB board 83 can be subjected to pressure earlier, and at the same time, the higher end of the PCB board 83 can be better pressed downward, and the PCB board 83 can be adjusted to a horizontal state, which can better prevent the PCB board 83 from being damaged, thereby improving the assembly quality.

[0138] Moreover, after the PCB board 83 is aligned, during the downward movement of the transmission member 46, the pressure ring 48 first indirectly applies pressure downward to the connection block 49 through the elastic member 52, so that the PCB board 83 can be gently applied with pressure, and the PCB board 83 can be further aligned stably; in the final state of pressing down the PCB board 83, the force block 53 acts on the middle part of the connection block 49, so that the connection block 49 is subjected to sufficient pressure, and the PCB board 83 and the housing 81 can be sufficiently clamped (the housing 81 and the PCB board 83 are fixedly connected through the fisheye terminal 82, that is, when pressing down, the PCB board 83 and the fisheye terminal 82 are clamped to each other). The air avoidance 55 at the bottom of the clamping block 54 can prevent the fisheye terminal 82, the pin 84 and the capacitor 85 from being pressed, that is, the clamping block 54 only exerts pressure on the PCB board 83, so that the PCB board 83 can be better prevented from being damaged. In addition, the bottom of the pressing block 54 can also be provided with other openings according to the actual situation or structure, which can play the role of avoiding air and providing protection.

[0139] Since the diameter of the anti-slip rod 50 is equal to the inner diameter of the center of the pressure ring 48, the outer wall of the anti-slip rod 50 is movably fitted to the center of the pressure ring 48, so that the connecting block 49 and the transmission member 46 can only move closer to or farther from each other, but cannot shake left and right, thus ensuring the angle and position of the connecting block 49 and the pressing block 54, and the pressing angle of the PCB board 83 is better. Secondly, after the pressing is completed, when the height of the transmission member 46 is increased, the top of the transmission member 46 can be made to contact the lower side of the anti-slip disk 51, at this time, the connecting block 49 and the pressing block 54 can be raised by the anti-slip disk 51 and the anti-slip rod 50, and the elastic member 52 can always remain in a compressed state.

[0140] After the PCB board 83 is pressed down, the rotating disk 3 rotates another 60 degrees, so that the PCB board 83 is now moved to the welding station; at this time, the first cylinder 37 first drives the auxiliary part 38 downward, and the two ends of the auxiliary part 38 are pressed tightly against the two ends of the shell 81, thereby further improving the position stability of the shell 81; then the second motor 29 drives the second screw rod 30 to rotate, and the second screw rod 30 drives the lifting part 31 to descend until the position is suitable. Afterwards, the motor drives the active wire feeding wheel 11 to rotate, wherein the static friction between the active wire feeding wheel 11 and the wire feeding piece 13 (made of belt material, which has both a large width and a large static friction coefficient) drives the wire feeding piece 13 and the two passive wire feeding wheels 12 to rotate; wherein part of the tin wire is clamped between the active wire feeding wheel 11 and the wire feeding piece 13, so under the action force between the active wire feeding wheel 11 and the wire feeding piece 13, the tin wire moves downward and enters the guide cylinder 14, and finally enters the wire guide cylinder 10 through the guide cylinder 14, and then extends outward through the wire guide cylinder 10, so that the free end of the tin wire is the pin 84, and then the laser head 7 emits a high-temperature laser to melt the end of the tin wire, and the melted tin wire welds the pin 84 and the PCB board 83 together.

[0141] Two electric push rods are vertically arranged on the welding seat 6, and the two electric push rods are used to control the lifting and lowering of the laser head 7 and the wire guide tube 10, so that the welding point can be fine-tuned and adapted, and the welding can be carried out better; the guide tube 14 is flexible, and when the wire guide tube 10 is lifted and lowered, it can continue to guide the tin wire after it is deformed. Secondly, the tin wire is also deformable, so that even if the position of the wire guide tube 10 changes, welding and wire guiding can be carried out normally.

[0142] When the active wire feeding wheel 11 is rotating, it can apply a pulling force to the tin wire, under the action of the pulling force, the tin wire tube rotates, and the tin wire is pulled out for use; however, when welding is stopped, there is a certain pressure damping effect between the inner wall of the tin wire tube and the outer wall of the tin wire tube rod 9 (the specific pressure size needs to be selected according to actual conditions), so that the two can remain stationary.

[0143] The first motor 22 and the first screw rod 23 can drive the second frame 24 to move forward and backward in the X direction, the second motor 29 and the second screw rod 30 can control the welding seat 6 to move up and down in the X direction, and the third motor 33 and the third screw rod 34 can drive the translation part and the welding seat 6 to move forward and backward in the Y direction. In this way, when welding, pins 84 at different positions can be welded.

[0144] After the welding is completed, the welding seat 6 and the auxiliary part 38 are both raised, and then the active disk is rotated 60 degrees again, so that the welded shell 81 is moved to the inspection station; at this time, the seventh motor 69 drives the seventh screw rod 70 to rotate, and the length direction of the seventh screw rod 70 is parallel to the length direction of the support seat 4 here, and the camera 72 is located above the shell 81; in this way, the seventh screw rod 70 can drive the camera 72 to move through the ninth frame 71, and shoot the shell 81 and the PCB board 83; after shooting, it is compared with the internal preset image or picture to analyze whether the welding of this shell 81 is qualified. If it is qualified, subsequent operations such as painting are carried out. If it is unqualified, no painting is carried out, but it is directly moved to the unloading station and sent out. Among them, the camera 72 is a commonly purchased camera on the market, etc., and its specific structure and principle are not described in detail here.

[0145] After that, the rotating disk 3 rotates 60 degrees so that the support seat 4 reaches the painting station. If the welding is unqualified, the painting unit for this product will not work; but if the welding is qualified, the second cylinder 65 drives the paint blocking member 66 outward, and makes the horizontal part of the paint blocking member 66 located above the shell 81, wherein the fisheye terminal 82 and the like cannot be painted, so the paint blocking member 66 is needed to block it, but the pin 84 and the capacitor 85 need to be protected by paint.

[0146] After the paint blocking part 66 is in the right position, the cleaning nozzle 63 is first moved downward, and the externally connected negative ion blower blows negative ion wind into the cleaning nozzle 63. Under the action of the negative ion wind, the surface of the shell 81 can be cleaned by blowing, and secondly, the electrons or charges can be neutralized. After the cleaning is completed, the paint spraying head 64 moves downward, and the air jet hole is sprayed with paint (there are two channels in the paint spraying head 64, one is a compressed air channel, and the other is a three-proof paint channel. The three-proof paint is sprayed out by compressed air and applied to the place that needs to be covered), and the pin 84 and the capacitor 85 are sprayed with paint for protection.

[0147] The length direction of the seventh frame 60 is perpendicular to the length direction of the support seat 4, so when cleaning and painting, only the sixth motor 61 and the sixth screw rod need to drive the spray paint frame 62, which is simple and convenient. At the same time, the fifth motor 57 and the fifth screw rod 58 can drive the sixth frame 59 to reciprocate, so that when cleaning and painting, the cleaning and painting range can be adjusted according to the actual width of the shell 81, so that it is more suitable for the current shell 81.

[0148] After the painting is completed, the paint blocking member 66 and the paint spraying frame 62 are reset, and the rotating disk 3 rotates 60 degrees; if the shell 81 is qualified and painted at this time, the unloading unit at this time does not operate; but if the shell 81 is unqualified and not painted at this time, the unloading unit at this time operates to move the unqualified products to the outside. When moving, the fourth cylinder 78 first drives the pneumatic clamp 79 downward, and the two clamps 80 are located on both sides of the shell 81; after the pneumatic clamp 79 is started, it is clamped on both sides of the shell 81 by the clamps 80, and then the fourth cylinder 78 raises the pneumatic clamp 79 and separates the shell 81 from the support seat 4; then the third cylinder 77 drives the unloading seat 76 to move on the unloading rail 75, so that the pneumatic clamp 79 moves to the top of the unloading plate 73, and then the fourth cylinder 78 lowers the height of the pneumatic clamp 79 and releases the shell 81 to prevent the shell 81 from being damaged. Finally, the housing 81 is guided outward by the blanking plate 73 .

[0149] Finally, the rotating disk 3 is rotated another 60 degrees to move the support seat 4 to the upper and lower workstations. If there are qualified products on the support seat 4 at this time, the worker will remove the qualified products and place new shells 81 to be processed; if the unqualified products on the support seat 4 have been removed, the shells 81 to be processed can be directly placed.

[0150] Since there are six support seats 4 and each of them is opposite to one of the six workstations, each time the rotating disk 3 rotates 60 degrees, there is a support seat 4 at each workstation, and corresponding processing or machining is performed at the corresponding workstation (no action is also a kind of processing), which can greatly improve production efficiency and effects.

[0151] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A welding machine for chips in current sensors, characterized in that: include: A support platform (1) and a support frame (2) used for supporting the support platform (1); A rotating disk (3), the rotating disk (3) being externally connected to a first driving mechanism for driving the rotating disk (3) to rotate; A support seat (4), each of the support seats (4) having a contoured groove (5) on its top, each of the contoured grooves (5) being used to engage a housing (81) of a current sensor, the support seat (4) being located on the top of the rotating disk (3); A welding seat (6), the welding seat (6) is externally connected to a second driving mechanism for controlling the position of the welding seat (6), the welding seat (6) is provided with a laser head (7) and a wire feeding mechanism, the wire feeding mechanism is used to transport tin wire, and the laser head (7) is used to melt the free end of the tin wire.

2. A welding machine for a chip in a current sensor according to claim 1, characterized in that: The wire feeding mechanism comprises a tin wire rack (8) vertically arranged on the top of the welding seat (6), a tin wire barrel rod (9) is horizontally arranged on the side of the tin wire rack (8), a tin wire barrel is rotatably sleeved on the outer wall of the tin wire barrel rod (9), and a tin wire is rotatably wound around the tin wire barrel; A wire guide cylinder (10) is obliquely arranged at the bottom of the support seat (4), the tin wire movably passes through the wire guide cylinder (10), and the bottom of the wire guide cylinder (10) faces the PCB board (83) at a corresponding position; An active wire feeding wheel (11) and two passive wire feeding wheels (12) are rotatably arranged on the side of the support seat (4); a motor for driving the active wire feeding wheel (11) to rotate is arranged on the outer side of the active wire feeding wheel (11); the two passive wire feeding wheels (12) are both located on the side of the active wire feeding wheel (11); a wire feeding member (13) is movably sleeved on the outer wall of the two passive wire feeding wheels (12); the outer wall of the wire feeding member (13) is attached to the outer wall of the active wire feeding wheel (11); the part of the tin wire between the tin wire drum and the wire guide drum (10) is located between the wire feeding member (13) and the outer wall of the active wire feeding wheel (11); It also includes a guide cylinder (14), the top of which is used to receive the tin wire at the bottom of the wire feeding member (13), and the bottom of which is used to feed the tin wire into the top of the wire guide cylinder (10).

3. A welding machine for a chip in a current sensor according to claim 2, characterized in that: A clearance hole (15) is provided in the middle of the support platform (1), the first driving mechanism comprises a vertical frame (16) in a vertical shape, a vertical portion (17) is rotatably connected to the outer wall of the vertical frame (16), the bottom of the rotating disk (3) is connected to the top of the vertical portion (17), and a plurality of passive teeth (18) are vertically provided on the side of the vertical portion (17); The first driving mechanism further comprises a power motor (19) arranged on the support frame (2); a driving gear (20) is arranged on the output shaft of the power motor (19); the driving gear (20) is meshed with the passive gear (18); and both the driving gear (20) and the passive gear (18) are movably located in the clearance hole (15).

4. A welding machine for a chip in a current sensor according to claim 3, characterized in that: The second driving mechanism comprises: A first frame (21), the first frame (21) is in an inverted U shape and is arranged on the top of the support platform (1); A first motor (22), the first motor (22) being horizontally arranged on the outside of the first frame (21); A first screw rod (23), both ends of which are rotatably connected to the middle parts of both ends of the first frame (21), and the outer end of the first screw rod (23) is connected to the output shaft of the first motor (22); A second frame (24), the second frame (24) is vertically arranged on the top of the first frame (21), the bottom of the second frame (24) is movably sleeved on the middle of the first frame (21), and the first screw rod (23) is threadedly matched with the bottom end of the second frame (24); A top plate body (25) and a bottom plate body (26), wherein the top plate body (25) is arranged on the top of the second frame body (24), and the bottom plate body (26) is arranged on the bottom of the second frame body (24), and two lifting rails (27) are vertically arranged between the outer ends of the top plate body (25) and the bottom plate body (26), and the outer sides of the lifting rails (27) are vertically opened with lifting grooves (28) with T-shaped cross sections; a second motor (29), the second motor (29) being vertically arranged on the top of the top plate (25), a second screw rod (30) being vertically arranged on the output shaft of the second motor (29), and the second screw rod (30) being rotatably connected to both the top plate (25) and the bottom plate (26); A lifting member (31), wherein two matching parts are vertically arranged on the inner side of the lifting member (31), wherein the matching parts are movably fitted to the inner wall of the lifting groove (28), and the inner side of the lifting member (31) is threadably matched with the second screw rod (30); A third frame (32), the third frame (32) being horizontally arranged on the outer side of the lifting member (31), the length direction of the third frame (32) being perpendicular to the length direction of the first frame (21), and a translation groove (32a) having a T-shaped longitudinal section being horizontally opened on the outer side of the third frame (32); A translation member, the translation member movably fits the inner wall of the translation groove (32a), and the outer end of the translation member is connected to the welding seat (6); A third motor (33), wherein the third motor (33) is arranged at one end of the third frame (32), and third screw rods (34) are arranged at both ends of the third frame (32) for horizontal rotation, and the output shaft of the third motor (33) is connected to the third screw rod (34), and the third screw rod (34) is threadedly matched with the translation member.

5. A welding machine for a chip in a current sensor according to claim 4, characterized in that: A hole for the vertical frame (16) to pass through is provided in the middle of the rotating disk (3); a fixed disk (35) is fixedly provided on the outer wall of the vertical frame (16); the fixed disk (35) is located above the rotating disk (3); an auxiliary frame (36) is vertically provided on the top of the fixed disk (35); a first cylinder body (37) is vertically provided on the outer side of the auxiliary frame (36); a U-shaped auxiliary part (38) is horizontally provided at the bottom of the output shaft of the first cylinder body (37); the auxiliary part (38) is used to press the tops of both ends of the shell (81) located below the welding seat (6).

6. A chip welding machine for a current sensor according to claim 5, characterized in that: Six support seats (4) are arranged on the rotating disk (3), and the six support seats (4) are evenly distributed on the rotating disk (3) in a circular shape; The support platform (1) includes upper and lower workstations, a pressing workstation, a welding workstation, an inspection workstation, a painting workstation and a material unloading workstation, which are sequentially distributed. The six support seats (4) are respectively opposite to the upper and lower workstations, the pressing workstation, the welding workstation, the inspection workstation, the painting workstation and the material unloading workstation. The welding seat (6) is located at the welding workstation. The pressing station is provided with a pressing unit, and the pressing unit is used to press the PCB board (83) downwards; The inspection station is provided with an inspection unit, and the inspection unit is used to inspect the welding condition; The painting station is provided with a painting unit, and the painting unit is used to paint the welding position; The unloading station is provided with an unloading machine unit, and the unloading machine unit is used to take out the unqualified products after inspection.

7. A chip welding machine for a current sensor according to claim 6, characterized in that: The compacting unit comprises a fourth frame (39) arranged on the top of the support platform (1), the fourth frame (39) is in a U-shape with an opening facing downward, a fourth motor (40) is vertically arranged on the top of the fourth frame (39), a fourth screw rod (41) is arranged on the output shaft of the fourth motor (40), and the top and bottom of the fourth screw rod (41) are rotatably connected to the fourth frame (39) and the support platform (1) respectively; The outer side of the fourth frame (39) is vertically movably sleeved with a clamping sleeve (42), the inner side of the clamping sleeve (42) is threadedly matched with the fourth screw rod (41), and a horizontal plate (43) is horizontally arranged on the outer side, and two hinge seats (44) are relatively arranged on the lower side of the horizontal plate (43), and a hinge table (45) is hingedly arranged between the two hinge seats (44), and there is a set pressure between the outer side of the hinge table (45) and the inner side of the two hinge seats (44), and a transmission member (46) is arranged at the bottom of the hinge table (45), and the middle part of the transmission member (46) is connected to the hinge table (45), and through holes (47) are vertically penetrated at both ends, and the top inner wall of the through hole (47) is provided with an annular pressure ring (48); It also includes a connecting block (49), both ends of which are vertically provided with anti-slip rods (50), the top of which is provided with an anti-slip disk (51), the outer wall of which is movably fitted to the center of the pressure ring (48), the bottom of which is in contact with the top of the transmission member (46), the top of which is provided with an elastic member (52) which is continuously in a compressed state, the top of which is in contact with the bottom of the pressure ring (48), and the bottom of the middle part of the transmission member (46) is provided with a force block (53), when the bottom of which is in contact with the top of the connecting block (49), the anti-slip disk (51) and the transmission member (46) are in a separated state; A pressing block (54) is horizontally arranged at the bottom of the connecting block (49), and four air-avoiding openings (55) are opened at the bottom of the pressing block (54), one of the air-avoiding openings (55) is used for the top of the fisheye terminal (82) to enter, and the other three air-avoiding openings (55) are used for adjacent pins and capacitors (85) to enter.

8. A chip welding machine for a current sensor according to claim 6 or 7, characterized in that: The paint spraying unit comprises: A fifth frame (56) is horizontally arranged on the top of the support platform (1), the fifth frame (56) is in a U-shape with an opening facing downward, a fifth motor (57) is horizontally arranged at the outer end of the fifth frame (56), and a fifth screw rod (58) is horizontally rotatably arranged at both ends of the fifth frame (56), and one end of the fifth screw rod (58) is connected to the output shaft of the fifth motor (57); A sixth frame (59), the bottom of the sixth frame (59) is movably sleeved on the middle of the fifth frame (56), and the bottom end of the sixth frame (59) is threadedly matched with the fifth screw rod (58); A seventh frame (60), the seventh frame (60) is horizontally arranged on the inner side of the top of the sixth frame (59), the length direction of the seventh frame (60) is perpendicular to the length direction of the fifth frame (56), the cross section of the seventh frame (60) is in the shape of a square, a sixth motor (61) is horizontally arranged at one end of the seventh frame (60), a sixth screw rod is horizontally rotatably arranged between the two ends of the seventh frame (60), and one end of the sixth screw rod is connected to the output shaft of the sixth motor (61); A paint spray frame (62), the paint spray frame (62) is horizontally movable and buckled on the outer side of the seventh frame (60), and the inner end of the paint spray frame (62) is threadably matched with the sixth screw rod; A cleaning nozzle (63) and a paint spray head (64), wherein the cleaning nozzle (63) and the paint spray head (64) are both arranged on the outside of the paint spray frame (62), the cleaning nozzle (63) is used to blow negative ion wind to the top of the PCB board (83), and the paint spray head (64) is used to spray conformal paint on the PCB board (83); The second cylinder body (65) is horizontally arranged on the fixed plate (35), and a paint blocking member (66) having an L-shaped longitudinal section is arranged on the piston rod of the second cylinder body (65). The second cylinder body (65) is used to drive the paint blocking member (66) to approach or move away from the fifth frame (56). A paint hole (67) is vertically opened on the horizontal part of the paint blocking member (66), and the pin and the capacitor (85) are both located below the paint hole (67) when spraying paint.

9. A welding machine for a chip in a current sensor according to claim 6 or 7, characterized in that: The inspection unit comprises an eighth frame (68), the eighth frame (68) is in a U-shape with an opening facing downward, a seventh motor (69) is horizontally arranged at the outer end of the eighth frame (68), a seventh screw rod (70) is horizontally rotatably arranged at both ends of the eighth frame (68), one end of the seventh screw rod (70) is connected to the output shaft of the seventh motor (69), a ninth frame (71) is movably sleeved on the top of the eighth frame (68), the bottom end of the ninth frame (71) is threadedly matched with the seventh screw rod (70), and a camera (72) is arranged on the inner side of the top of the ninth frame (71), and the camera (72) is used to collect image information of the PCB board (83); The unloading unit comprises an unloading plate (73) arranged in an inclined shape on the support platform (1); an L-shaped unloading frame (74) is arranged on the top of the fixed plate (35); a unloading rail (75) is arranged horizontally on the top of the unloading frame (74); a unloading seat (76) is movably buckled on the unloading rail (75); and a third cylinder (77) is arranged on the unloading frame (74) for driving the unloading seat (76) to move horizontally; A fourth cylinder body (78) is vertically arranged on the outer side of the unloading seat (76), and a pneumatic clamp (79) is arranged on the piston rod of the fourth cylinder body (78). Both clamping jaws of the pneumatic clamp (79) are provided with clamping members (80), and the clamping members (80) are used to transport the shell (81) from the corresponding support seat (4) to the top of the unloading plate (73).

10. A process for using a welding machine for a chip in a current sensor as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, placing the housing (81) into the contoured groove (5); S2, the rotating disk (3) rotates to move the housing (81) to the bottom of the welding seat (6); S3, the welding seat (6) is driven to move to a designated position; S4, the wire feeding mechanism feeds the tin wire downward, the laser head (7) emits a laser to melt the tin wire, and the molten tin wire flows to the connection between the pin (84) and the PCB board (83). After one welding is completed, the wire feeding mechanism and the laser head (7) stop; S5, the welding seat (6) is driven to the next designated position, and the wire feeding mechanism and the laser head (7) weld the corresponding pins (84) and the PCB board (83) until completion; S6, repeat S4-S5 until all pins (84) are soldered; S7, the welding seat (6) is reset, and the rotating disk (3) is rotated so that the housing (81) moves to the outside of the welding seat (6); S8, remove the welded product and replace it with a new shell (81).

Images