CN113523482B - Integrated circuit board welding leg cutting device - Google Patents
Integrated circuit board welding leg cutting device Download PDFInfo
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- CN113523482B CN113523482B CN202110895871.4A CN202110895871A CN113523482B CN 113523482 B CN113523482 B CN 113523482B CN 202110895871 A CN202110895871 A CN 202110895871A CN 113523482 B CN113523482 B CN 113523482B
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- sliding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention discloses an integrated circuit board welding leg cutting device which comprises a welding leg clamping mechanism, a movable cutting mechanism, a supporting mechanism and a fixing mechanism, wherein the welding leg clamping mechanism is connected to the top of the supporting mechanism in a sliding mode, the movable cutting mechanism is arranged on the top of the welding leg clamping mechanism along the length direction of the welding leg clamping mechanism, and the fixing mechanism is arranged above the supporting mechanism. By arranging the welding leg clamping mechanism, the welding legs positioned in the same row can be clamped and fixed individually, so that the welding legs are prevented from being bent during cutting, and the cutting quality and effect are improved; the clamping assembly can synchronously clamp a plurality of welding feet at different positions in the same row or similar row, so that circuit board cutting at different welding foot positions is met; the tip both sides of expansion plate are the inclined plane, and the lateral wall of laminating leg that can be better plays good supporting effect.
Description
Technical Field
The invention relates to the technical field of circuit board welding leg cutting. In particular to a welding foot cutting device of an integrated circuit board.
Background
With the continuous development of the electronic information manufacturing industry, the demand of the circuit board is gradually increased, after the circuit board is manufactured, different components are required to be welded on the circuit board, after the components are welded, the welding feet of the components protrude out of the circuit board, and the welding feet are required to be cut; in the prior art, the welding leg of the circuit board is often directly cut by using a cutter disc rotating at a high speed, thrust parallel to the motion direction of the circuit board or the motion direction of the cutter disc and tangential force in the rotation direction of the cutter disc are applied to the welding leg during cutting, when the cutting feeding speed is overlarge or the sharpness of the cutter disc is reduced, the welding leg is bent, after the welding leg is bent, the cutting quality is firstly influenced, the use of the circuit board is secondly influenced, and even the welding leg is loosened, so that a lot of unnecessary troubles are brought; the cutting and the cutting position of the welding leg are polished generally in two steps, synchronous cutting and polishing cannot be carried out, and certain inconvenience is brought.
Disclosure of Invention
Therefore, the present invention is to provide a device for cutting solder tails of an integrated circuit board, which is not easy to bend during cutting, can directly polish the solder tails after cutting, and has high applicability.
In order to solve the technical problems, the invention provides the following technical scheme: the integrated circuit board welding leg cutting device comprises a welding leg clamping mechanism, a movable cutting mechanism, a supporting mechanism and a fixing mechanism, wherein the welding leg clamping mechanism is connected to the top of the supporting mechanism in a sliding mode, the movable cutting mechanism is arranged at the top of the welding leg clamping mechanism along the length direction of the welding leg clamping mechanism, the fixing mechanism is arranged above the supporting mechanism, and the welding leg clamping mechanism and the movable cutting mechanism are located between the supporting mechanism and the fixing mechanism; and the welding leg clamping mechanism clamps the welding leg of the circuit board. Through setting up leg fixture, can carry out the centre gripping to the leg, crooked when avoiding the leg cutting.
According to the integrated circuit board welding leg cutting device, the welding leg clamping mechanism comprises a groove plate and clamping units which are connected in the groove plate in a sliding mode, the number of the clamping units is two or more, the top of the inner wall and the bottom of the inner wall of the groove plate are fixedly connected with a first linear slide rail along the length direction of the groove plate, a through groove is formed in the side vertical surface of the groove plate, the top of the groove plate is fixedly connected with two second linear slide rails along the length direction of the groove plate, baffle plates are fixedly connected in the two ends of the groove plate, air cylinders are fixedly connected to the side vertical surfaces, far away from the length central line of the groove plate, of the two baffle plates, and the end portions of piston rods of the air cylinders penetrate through the baffle plates and are close to the length central line of the groove plate;
the clamping unit comprises a sliding frame, a telescopic plate and a spring, the telescopic plate is connected in the sliding frame in a sliding mode, second sliding grooves are formed in the top of the inner wall and the bottom of the inner wall of the sliding frame along the length direction of the sliding frame, sliding blocks are fixedly connected to the top and the bottom of the telescopic plate along the length direction of the telescopic plate and are connected in the second sliding grooves in a sliding mode, the first end of the telescopic plate protrudes out of the open end of the sliding frame, the thickness of the first end of the telescopic plate is smaller than that of the second end of the telescopic plate, the first end of the spring is fixedly connected with the second end of the telescopic plate, the second end of the spring is fixedly connected with the inner side wall of the sliding frame, and first sliding grooves are formed in the top and the bottom of the sliding frame along the width direction of the sliding frame; the first sliding groove at the top of the sliding frame is in sliding connection with the first linear sliding rail at the top of the inner wall of the groove plate, the first sliding groove at the bottom of the sliding frame is in sliding connection with the first linear sliding rail at the bottom of the inner wall of the groove plate, the closed end of the sliding frame penetrates through the through groove and the two piston rod end parts of the cylinders are in lap joint with the side walls of the clamping units at two ends in the clamping units. The expansion plate can contract after contacting the leg, and the sliding frame can remove along the length direction of frid, utilizes cylinder extrusion sliding frame to realize compressing tightly the leg.
According to the integrated circuit board welding leg cutting device, the movable cutting mechanism comprises a driving assembly and a cutting assembly, the driving assembly comprises two lead screw supports, a lead screw and a first driving motor, optical axis parts at two ends of the lead screw are respectively and rotatably connected to the side walls of the two lead screw supports, an output shaft of the first driving motor is in transmission connection with one end of the lead screw, and a nut is in threaded connection with the surface of the lead screw;
the cutting assembly comprises an outer shell, a cutter head and a second driving motor, a first gear and a second gear are arranged in the outer shell, the outer shell of the second driving motor is fixedly connected with the bottom of the outer shell, and the output shaft of the second driving motor vertically penetrates one end of the shell body, the middle part of the cutter head is in transmission connection with a rotating shaft, one end of the rotating shaft vertically penetrates the other end of the shell body, the axis of the rotating shaft is parallel to the axis of the output shaft of the second driving motor, the output shaft of the second driving motor is connected with a second gear in a transmission way, the surface of the rotating shaft is connected with a first gear in a transmission way, the first gear is meshed with the second gear, the bottom of the outer shell is provided with two parallel third sliding grooves along the width direction of the outer shell, and the top of the nut is fixedly connected with the bottom of the outer shell; the bottom of the outer shell is connected to the top of the welding leg clamping mechanism in a sliding mode through the third sliding groove, and the two lead screw supports are fixedly connected to the side wall of the welding leg clamping mechanism respectively.
According to the integrated circuit board welding leg cutting device, the cutter disc comprises a disc body, the edge of the disc body is provided with a cutting part along the circumferential direction of the disc body, the top of the disc body is provided with a polishing area, and the axis of the disc body is fixedly connected with the rotating shaft; the point of blade disc cutting part and leg of weld contact is point A, the direction of rotation of blade disc is: point a rotates in a direction closer to the fillet clamping mechanism. Through setting up the blade disc, can carry out the leg cutting to utilize the district of polishing, can polish the leg after the cutting.
According to the integrated circuit board welding leg cutting device, the disc body is disc-shaped, and the distance between the blade line of the blade part and the axis of the top of the polishing area is larger than zero. The distance between the blade line of the blade part and the axis of the top of the polishing area is greater than zero, so that the situation that the cutting point of the welding leg does not contact the polishing area after cutting can be avoided.
In the integrated circuit board fillet cutting device, the supporting mechanism comprises two or more parallel guide rails and linear sliding plates movably connected to the guide rails, two ends of one side of each guide rail are rotatably connected with synchronous wheels, the surfaces of the two synchronous wheels are in transmission connection with a synchronous belt, a power input shaft of one synchronous wheel is in transmission connection with a third driving motor, and the side wall of each synchronous belt is fixedly connected with the side wall of the corresponding linear sliding plate; the bottom of the welding leg clamping mechanism is fixedly connected to the top of the linear sliding plate.
The integrated circuit board weld leg cutting device is characterized in that the fixing mechanism comprises two first supporting rods, two second supporting rods, a first linear guide rod and a second linear guide rod, the two first supporting rods are arranged on one side of the supporting mechanism, the two second supporting rods are arranged on the other side of the supporting mechanism, the first linear guide rod is fixedly connected between the two second supporting rods, the second linear guide rod is fixedly connected between the two first supporting rods, the surface of the first linear guide rod is slidably connected with a first sliding sleeve, the surface of the second linear guide rod is slidably connected with a second sliding sleeve, the side walls of the first sliding sleeve and the second sliding sleeve are respectively provided with a threaded through hole, the threaded through hole is internally threaded with a bolt, one end of the bolt on the side wall of the first sliding sleeve is tightly pressed on the side wall of the first linear guide rod, one end of a bolt on the side wall of the second sliding sleeve is tightly pressed on the side wall of the second linear guide rod, the side walls of the first sliding sleeve and the second sliding sleeve are fixedly connected with threaded sleeves, a threaded rod is connected in the threaded sleeve in a threaded manner, the bottom end of the threaded rod is a polished rod, the bottom end of the threaded rod on the side wall of the first sliding sleeve is rotatably connected with a supporting plate, the other end of the supporting plate is rotationally connected with the bottom end of the threaded rod of the side wall of the second sliding sleeve, two or more threaded holes are arranged at the top of the supporting plate along the thickness direction of the supporting plate, two or more threaded holes are arranged along the length direction of the supporting plate, the top of the supporting plate is provided with a pressing plate, the top of the pressing plate is provided with a fixing hole, a bolt is arranged in the fixing hole in a penetrating way, the other end of the bolt is in threaded connection with the threaded hole, and the pressing plate is tightly pressed on the top of the supporting plate through the bolt.
In the integrated circuit board leg cutting device, the third chute at the bottom of the outer shell in the movable cutting mechanism is slidably connected to the second linear slide rail at the top of the groove plate in the leg clamping mechanism; the side walls of the two lead screw supports in the movable cutting mechanism are fixedly connected with two ends of the side vertical surface of the groove plate in the weld leg clamping mechanism respectively; the top of the linear sliding plate of the supporting mechanism is fixedly connected with the bottom of the groove plate in the welding leg clamping mechanism.
The technical scheme of the invention achieves the following beneficial technical effects:
1. by arranging the welding leg clamping mechanism, each welding leg positioned in the same row can be clamped, fixed or supported, so that the welding legs are prevented from being bent during cutting, and the cutting quality and effect are improved; the clamping assembly can synchronously clamp a plurality of welding feet at different positions in the same row or similar row, so that circuit board cutting at different welding foot positions is met; the tip both sides of expansion plate are the inclined plane, and the lateral wall of laminating leg that can be better plays good supporting effect.
2. The cutting width of the traditional fillet cutting device mainly depends on the diameter of a cutter disc, the diameter of the cutter disc needs to be correspondingly increased along with the increase of a circuit board, but the increase of the cutter disc can directly increase the manufacturing cost and the manufacturing difficulty, and the cutter disc in the invention can meet the cutting requirement by the cutter disc with smaller diameter under the driving of a driving assembly, can be suitable for cutting the circuit boards with different widths and lengths, and can not increase the manufacturing cost of the cutter disc; the movable cutting mechanism can support the welding leg in the advancing cutting process, the welding leg is prevented from being bent along the advancing direction of the movable cutting mechanism, and the tangential force applied to the welding leg by the cutter head in rotation is prevented from being bent under the support of the contracted clamping unit.
3. The grinding area is arranged at the top of the cutter head, and after the welding leg is cut at the edge part of the cutter head, the grinding area is utilized to directly grind the cutting position of the welding leg, so that the cutting and grinding are finished at one time, and the working efficiency is improved; the cutting blade is adopted for cutting, so that less dust is generated, and the cutting efficiency is higher.
4. Through setting up mobilizable layer board, and two layer boards mutually support with, it is convenient to adjust during the circuit board of fixed equidimension not, the fixed not circuit board of equidimension of being convenient for, the cooperation removes cutting mechanism, and the height-adjustable of layer board, can adjust the length of cutting leg.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the assembly of the leg clamping mechanism and the movable cutting mechanism of the present invention;
FIG. 3 is a schematic perspective view of a leg clamping mechanism according to the present invention;
FIG. 4 is a schematic perspective view of a clamping unit according to the present invention;
FIG. 5 is a schematic side sectional view of the mobile cutting mechanism of the present invention;
FIG. 6 is a schematic perspective view of a cutter head according to the present invention;
FIG. 7 is a schematic top view of the solder tail of the present invention contacting two clamping units;
FIG. 8 is a schematic top view of the solder tail of the present invention contacting three clamping units;
the reference numbers in the figures denote: 1-a fillet clamping mechanism; 101-a groove plate; 102-a clamping unit; 103-a first linear slide rail; 104-a second linear slide rail; 105-a through slot; 106-a baffle; 107-cylinder; 108-a sliding frame; 109-a first chute; 110-a retractable plate; 111-a slider; 112-a spring; 113-a second chute; 2-moving the cutting mechanism; 201-a screw rod support; 202-a first drive motor; 203-a screw rod; 204-an outer shell; 205-a cutter head; 206-a first gear; 207-second gear; 208-a second drive motor; 209-third chute; 210-a polishing area; 211-a nut; 212-a disk body; 213-blade part; 3-a support mechanism; 301-a guide rail; 302-linear slide; 303-a third drive motor; 304-a synchronous belt; 305-a synchronizing wheel; 4-a fixing mechanism; 401-a first support bar; 402-a second support bar; 403-a first linear guide; 404-a first runner; 405-a threaded sleeve; 406-a threaded rod; 407-a threaded hole; 408-a pressure plate; 409-a supporting plate; 410-a second sliding sleeve; 411-a second linear guide; 5-welding feet.
Detailed Description
Referring to fig. 1, the integrated circuit board fillet cutting device includes a fillet clamping mechanism 1, a movable cutting mechanism 2, a supporting mechanism 3 and a fixing mechanism 4, wherein the fillet clamping mechanism 1 is slidably connected to the top of the supporting mechanism 3, the movable cutting mechanism 2 is arranged at the top of the fillet clamping mechanism 1 along the length direction of the fillet clamping mechanism 1, the fixing mechanism 4 is arranged above the supporting mechanism 3, and the fillet clamping mechanism 1 and the movable cutting mechanism 2 are located between the supporting mechanism 3 and the fixing mechanism 4; and the welding leg clamping mechanism 1 clamps the circuit board welding leg 5.
The supporting mechanism 3 comprises two or more parallel guide rails 301 and linear sliding plates 302 movably connected to the guide rails 301, two ends of one side of each guide rail 301 are rotatably connected with synchronizing wheels 305, the surfaces of the two synchronizing wheels 305 are in transmission connection with a synchronizing belt 304, the power input shaft of one synchronizing wheel 305 is in transmission connection with a third driving motor 303, and the side walls of the synchronizing belts 304 are fixedly connected with the side walls of the corresponding linear sliding plates 302; the bottom of the leg clamping mechanism 1 is fixedly connected to the top of the linear sliding plate 302.
The fixing mechanism 4 comprises two first supporting rods 401, two second supporting rods 402, a first linear guide rod 403 and a second linear guide rod 411, the two first supporting rods 401 are arranged on one side of the supporting mechanism 3, the two second supporting rods 402 are arranged on the other side of the supporting mechanism 3, the first linear guide rod 403 is fixedly connected between the two second supporting rods 402, the second linear guide rod 411 is fixedly connected between the two first supporting rods 401, a first sliding sleeve 404 is slidably connected to the surface of the first linear guide rod 403, a second sliding sleeve 410 is slidably connected to the surface of the second linear guide rod 411, threaded through holes are respectively formed in the side walls of the first sliding sleeve 404 and the second sliding sleeve 410, bolts are connected to the threaded through holes in a threaded manner, one end of each bolt on the side wall of the first sliding sleeve 404 is pressed against the side wall of the first linear guide rod 403, one end of a bolt on the side wall of the second sliding sleeve 410 is tightly pressed on the side wall of the second linear guide rod 411, the side walls of the first sliding sleeve 404 and the second sliding sleeve 410 are fixedly connected with a threaded sleeve 405, a threaded rod 406 is in threaded connection with the threaded sleeve 405, the bottom end of the threaded rod 406 is a polished rod, the bottom end of the threaded rod 406 on the side wall of the first sliding sleeve 404 is rotatably connected with a supporting plate 409, the other end of the supporting plate 409 is rotatably connected with the bottom end of the threaded rod 406 on the side wall of the second sliding sleeve 410, the top of the supporting plate 409 is provided with two or more threaded holes 407 along the thickness direction, two or more threaded holes 407 are arranged along the length direction of the supporting plate 409, the top of the supporting plate 409 is provided with a pressing plate 408, the top of the pressing plate 408 is provided with a fixing hole, a bolt penetrates through the fixing hole, and the other end of the bolt is in the threaded hole 407, the pressing plate 408 is pressed on the top of the supporting plate 409 through a bolt, the two supporting plates 409 are movable through the arrangement of the supporting plate 409, the two supporting plates 409 are matched with each other, the circuit boards with different sizes can be conveniently fixed through adjustment, the circuit boards with different sizes can be fixed, the cutting mechanism 2 is moved through matching, the height of the supporting plate 409 can be adjusted, and the length of the cutting welding leg 5 can be conveniently adjusted.
As shown in fig. 2-3, the fillet clamping mechanism 1 includes a groove plate 101 and two or more clamping units 102 slidably connected in the groove plate 101, the number of the clamping units 102 is two or more, the top and the bottom of the inner wall of the groove plate 101 are both fixedly connected with a first linear slide rail 103 along the length direction thereof, a through groove 105 is opened on the side elevation of the groove plate 101, the top of the groove plate 101 is fixedly connected with two second linear slide rails 104 along the length direction thereof, baffles 106 are both fixedly connected in both ends of the groove plate 101, cylinders 107 are both fixedly connected on the side elevations of the two baffles 106 away from the length center line of the groove plate 101, the ends of the piston rods of the cylinders 107 penetrate through the baffles 106 and approach the length center line of the groove plate 101, and by providing the fillet clamping mechanism 1, the single clamping and fixing can be performed on the fillets 5 located in the same row, thereby avoiding the welding leg 5 from bending when cutting and improving the cutting quality and effect; the clamping assembly can synchronously clamp a plurality of welding feet 5 at different positions in the same row or similar row, so that circuit board cutting at different positions of the welding feet 5 is met; the tip both sides of expansion plate 110 are the inclined plane, and the lateral wall of laminating fillet 5 that can be better plays good supporting effect, and removal cutting mechanism 2 is advancing the cutting in-process, and fillet fixture 1 can support fillet 5, avoids fillet 5 to follow the crooked direction of advance that removes cutting mechanism 2.
As shown in fig. 4, the grip unit 102 includes a sliding frame 108, a telescopic plate 110 and a spring 112, the expansion plate 110 is slidably connected in the sliding frame 108, the top of the inner wall and the bottom of the inner wall of the sliding frame 108 are both provided with a second sliding chute 113 along the length direction, the top and bottom of the expansion plate 110 are fixedly connected with sliders 111 along the length direction thereof, the sliding block 111 is slidably connected in the second sliding slot 113, a first end of the expansion plate 110 protrudes out of the open end of the sliding frame 108, the first end of the expansion plate 110 has a thickness less than the thickness of the second end of the expansion plate 110, a first end of the spring 112 is fixedly connected with a second end of the expansion plate 110, a second end of the spring 112 is fixedly connected with an inner side wall of the sliding frame 108, the top and the bottom of the sliding frame 108 are both provided with a first sliding chute 109 along the width direction; the first sliding groove 109 at the top of the sliding frame 108 is slidably connected to the first linear sliding rail 103 at the top of the inner wall of the groove plate 101, the first sliding groove 109 at the bottom of the sliding frame 108 is slidably connected to the first linear sliding rail 103 at the bottom of the inner wall of the groove plate 101, the closed end of the sliding frame 108 passes through the through groove 105, the end portions of the piston rods of the two cylinders 107 are overlapped with the side walls of the clamping units 102 at two ends of the two or more clamping units 102, the top of the linear sliding plate 302 of the supporting mechanism 3 is fixedly connected with the bottom of the groove plate 101 in the fillet clamping mechanism 1, in actual use, the sliding frame 108 and the expansion plate 110 can be made of materials with certain elasticity, so that when the cylinders 107 push to clamp, the sliding frame 108 and the expansion plate 110 can generate certain elastic deformation to better fix the fillet 5, and the thicknesses of the sliding frame 108 and the expansion plate 110 are smaller than the diameter of the fillet 5, facilitating the clamping of the solder foot 5.
As shown in fig. 5, the movable cutting mechanism 2 includes a driving assembly and a cutting assembly, the driving assembly includes two lead screw supports 201, a lead screw 203 and a first driving motor 202, optical axis portions at two ends of the lead screw 203 are respectively and rotatably connected to side walls of the two lead screw supports 201, an output shaft of the first driving motor 202 is in transmission connection with one end of the lead screw 203, and a nut 211 is in threaded connection with a surface of the lead screw 203; the cutting assembly comprises an outer shell 204, a cutter disc 205 and a second driving motor 208, wherein a first gear 206 and a second gear 207 are arranged in the outer shell 204, a shell of the second driving motor 208 is fixedly connected with the bottom of the outer shell 204, an output shaft of the second driving motor 208 vertically penetrates through one end of the outer shell 204, a rotating shaft is connected to the middle of the cutter disc 205 in a transmission manner, one end of the rotating shaft vertically penetrates through the other end of the shell, the axis of the rotating shaft is parallel to the axis of the output shaft of the second driving motor 208, the second gear 207 is connected to the output shaft of the second driving motor 208 in a transmission manner, a first gear 206 is connected to the surface of the rotating shaft in a transmission manner, the first gear 206 is meshed with the second gear 207 in a mutual engagement manner, and two parallel third sliding grooves 209 are formed in the bottom of the outer shell 204 along the width direction of the bottom of the outer shell, the top of the nut 211 is fixedly connected with the bottom of the outer shell 204; the third sliding groove 209 at the bottom of the outer shell 204 in the movable cutting mechanism 2 is slidably connected to the second linear sliding rail 104 at the top of the groove plate 101 in the leg clamping mechanism 1, two side walls of the screw rod support 201 and two ends of the side vertical surface of the groove plate 101 in the leg clamping mechanism 1 are fixedly connected in the movable cutting mechanism 2, the cutting width of the conventional leg cutting device mainly depends on the diameter of the cutter disc 205, along with the increase of a circuit board, the diameter of the cutter disc 205 needs to be correspondingly increased, but the increase of the cutter disc 205 can directly increase the manufacturing cost and the manufacturing difficulty, and the cutter disc 205 in the invention is driven by a driving assembly, so that the requirement of cutting can be met by the cutter disc 205 with a smaller diameter, and the movable cutting device can be suitable for cutting circuit boards with different widths and lengths without increasing the manufacturing cost of the cutter disc 205.
As shown in fig. 6, the cutter disc 205 includes a disc body 212, the disc body 212 is disc-shaped, the edge of the disc body 212 is provided with a cutting portion 213 along the circumferential direction thereof, the top of the disc body 212 is provided with a polishing area 210, the axis of the disc body 212 is fixedly connected with the rotating shaft, the distance between the cutting line of the cutting portion 213 and the axis of the top of the polishing area 210 is greater than zero, the top of the cutter disc 205 is provided with the polishing area 210, and after the welding foot 5 is cut by the cutting portion 213 of the cutter disc 205, the cutting position of the welding foot 5 is directly polished by using the polishing area 210, so that the cutting and polishing are completed at one time, and the working efficiency is improved; as shown in fig. 7-8, the point where the blade 213 of the cutter disc 205 contacts the fillet 5 is point a, and the rotation direction of the cutter disc 205 is: point a rotates in a direction approaching the fillet clamping mechanism 1, and tangential force exerted by the cutter head 205 on the fillet 5 during rotation is supported by the contracted clamping unit 102 to prevent the fillet 5 from bending.
The working process is as follows: the distance between the two supporting plates 409 is adjusted according to the size of the circuit board, so that the circuit board can be conveniently placed, the height positions of the supporting plates 409 can be adjusted, and during adjustment, the corresponding threaded rods 406 are rotated to enable the supporting plates 409 to move up and down, so that the length of the cutting welding feet 5 can be conveniently controlled; placing the circuit board on the top or the bottom of the two supporting plates 409, fixing the circuit board through the pressing plate 408 and the bolts, starting the whole device through an external controller, and in actual use, arranging a travel switch connected with the controller between the telescopic plate 110 and the sliding frame 108; in actual production, the circuit board is generally produced in batch, and the thickness, material and position of the clamping unit 102 can be adaptively adjusted according to the diameter and position of the solder feet 5 of the circuit board in actual production;
firstly, the external controller controls the third driving motor 303 to start, the third driving motor 303 drives the synchronizing wheel 305 to rotate, so that the synchronizing belt 304 advances, and drives the linear sliding plate 302 and the welding leg clamping mechanism 1 installed at the top of the linear sliding plate 302 to synchronously move, after the welding leg clamping mechanism 1 contacts the welding leg 5, under the driving force of the driving motor, the clamping unit 102 contacting the welding leg 5 contracts, namely the expansion plate 110 presses the spring 112 to contract towards the inside of the sliding frame 108, after the expansion plate 110 contracts and triggers the travel switch, the third driving motor 303 stops rotating, the two cylinders 107 extend, and press the clamping units 102 at two ends, so that the clamping units 102 approach each other, and the welding leg 5 is fixed; then the second driving motor 208 is started, the cutter disc 205 is driven to rotate through the first gear 206 and the second gear 207, the first driving motor 202 is synchronously started to drive the screw rod 203 to rotate, the screw rod 203 drives the nut 211 matched with the screw rod 203 to axially move after rotating, the outer shell 204 and the cutter disc 205 are driven to move, the blade part 213 of the cutter disc 205 firstly cuts the welding feet 5, the grinding area 210 is utilized to grind cutting points along with the advancing of the cutter disc 205, the quality after cutting is ensured, after the cutting of a row of welding feet 5 is finished, the air cylinders 107 on two sides shrink, the clamping along with the clamping of the welding feet 5 is loosened, and the cut welding feet 5 fall off; the third driving motor 303 moves to drive the welding leg clamping mechanism 1 to advance again, and the clamping and cutting steps are repeated until the welding legs 5 are completely cut.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (5)
1. The integrated circuit board welding leg cutting device is characterized by comprising a welding leg clamping mechanism (1), a movable cutting mechanism (2), a supporting mechanism (3) and a fixing mechanism (4), wherein the welding leg clamping mechanism (1) is connected to the top of the supporting mechanism (3) in a sliding mode, the movable cutting mechanism (2) is arranged at the top of the welding leg clamping mechanism (1) along the length direction of the welding leg clamping mechanism (1), the fixing mechanism (4) is arranged above the supporting mechanism (3), and the welding leg clamping mechanism (1) and the movable cutting mechanism (2) are located between the supporting mechanism (3) and the fixing mechanism (4); the welding leg clamping mechanism (1) clamps the circuit board welding leg (5);
the welding leg clamping mechanism (1) comprises a groove plate (101) and a clamping unit (102) connected in the groove plate (101) in a sliding manner, the number of the clamping units (102) is two or more, the top part of the inner wall and the bottom part of the inner wall of the groove plate (101) are fixedly connected with a first linear slide rail (103) along the length direction, a through groove (105) is arranged on the side vertical surface of the groove plate (101), the top of the groove plate (101) is fixedly connected with two second linear slide rails (104) along the length direction, baffles (106) are fixedly connected in the two ends of the trough plate (101), air cylinders (107) are fixedly connected on the side vertical surfaces of the two baffles (106) far away from the length center line of the trough plate (101), the end part of a piston rod of the cylinder (107) penetrates through the baffle plate (106) and approaches to the length center line of the groove plate (101);
the clamping unit (102) comprises a sliding frame (108), a telescopic plate (110) and a spring (112), the telescopic plate (110) is connected in the sliding frame (108) in a sliding mode, a second sliding groove (113) is formed in the top and the bottom of the inner wall of the sliding frame (108) along the length direction of the inner wall, a sliding block (111) is fixedly connected to the top and the bottom of the telescopic plate (110) along the length direction of the sliding plate, the sliding block (111) is connected in the second sliding groove (113) in a sliding mode, the first end of the telescopic plate (110) protrudes out of the open end of the sliding frame (108), the thickness of the first end of the telescopic plate (110) is smaller than that of the second end of the telescopic plate (110), the first end of the spring (112) is fixedly connected with the second end of the telescopic plate (110), the second end of the spring (112) is fixedly connected with the inner side wall of the sliding frame (108), the top and the bottom of the sliding frame (108) are both provided with a first sliding chute (109) along the width direction; the first sliding chute (109) at the top of the sliding frame (108) is connected to the first linear sliding rail (103) at the top of the inner wall of the groove plate (101) in a sliding manner, the first sliding chute (109) at the bottom of the sliding frame (108) is connected to the first linear sliding rail (103) at the bottom of the inner wall of the groove plate (101) in a sliding manner, the closed end of the sliding frame (108) penetrates through the through groove (105), and the end parts of piston rods of two cylinders (107) are lapped with the side walls of the clamping units (102) at two ends of two or more clamping units (102);
the supporting mechanism (3) comprises two or more parallel guide rails (301) and linear sliding plates (302) movably connected to the guide rails (301), two ends of one side of each guide rail (301) are rotatably connected with synchronizing wheels (305), the surfaces of the two synchronizing wheels (305) are connected with a synchronous belt (304) in a transmission manner, a power input shaft of one synchronizing wheel (305) is connected with a third driving motor (303) in a transmission manner, and the side walls of the synchronous belts (304) are fixedly connected with the corresponding side walls of the linear sliding plates (302); the bottom of the welding leg clamping mechanism (1) is fixedly connected to the top of the linear sliding plate (302);
the fixing mechanism (4) comprises two first supporting rods (401), two second supporting rods (402), a first linear guide rod (403) and a second linear guide rod (411), the two first supporting rods (401) are arranged on one side of the supporting mechanism (3), the two second supporting rods (402) are arranged on the other side of the supporting mechanism (3), the first linear guide rod (403) is fixedly connected between the two second supporting rods (402), the second linear guide rod (411) is fixedly connected between the two first supporting rods (401), the surface of the first linear guide rod (403) is connected with a first sliding sleeve (404) in a sliding manner, the surface of the second linear guide rod (411) is connected with a second sliding sleeve (410) in a sliding manner, and threaded through holes are formed in the side walls of the first sliding sleeve (404) and the second sliding sleeve (410), the threaded through hole is connected with a bolt in a threaded manner, one end of the bolt on the side wall of the first sliding sleeve (404) is tightly pressed on the side wall of the first linear guide rod (403), one end of the bolt on the side wall of the second sliding sleeve (410) is tightly pressed on the side wall of the second linear guide rod (411), the side walls of the first sliding sleeve (404) and the second sliding sleeve (410) are fixedly connected with a threaded sleeve (405), the threaded sleeve (405) is connected with a threaded rod (406) in a threaded manner, the bottom end of the threaded rod (406) is a polished rod, the bottom end of the threaded rod (406) on the side wall of the first sliding sleeve (404) is rotatably connected with a supporting plate (409), the other end of the supporting plate (409) is rotatably connected with the bottom end of the threaded rod (406) on the side wall of the second sliding sleeve (410), the top of the supporting plate (409) is provided with two or more threaded holes (407) along the thickness direction thereof, and the two or more threaded holes (407) are arranged along the length direction of the supporting plate (409), the top of the supporting plate (409) is provided with a pressing plate (408), the top of the pressing plate (408) is provided with a fixing hole, a bolt penetrates through the fixing hole, the other end of the bolt is in threaded connection with the threaded hole (407), and the pressing plate (408) is tightly pressed on the top of the supporting plate (409) through the bolt.
2. The integrated circuit board leg cutting device according to claim 1, wherein the movable cutting mechanism (2) comprises a driving assembly and a cutting assembly, the driving assembly comprises two lead screw supports (201), a lead screw (203) and a first driving motor (202), optical axis parts at two ends of the lead screw (203) are respectively and rotatably connected to side walls of the two lead screw supports (201), an output shaft of the first driving motor (202) is in transmission connection with one end of the lead screw (203), and a nut (211) is in threaded connection with the surface of the lead screw (203);
the cutting assembly comprises an outer shell (204), a cutter head (205) and a second driving motor (208), wherein a first gear (206) and a second gear (207) are arranged in the outer shell (204), a shell of the second driving motor (208) is fixedly connected with the bottom of the outer shell (204), an output shaft of the second driving motor (208) vertically penetrates through one end of the outer shell (204), a rotating shaft is connected with the middle transmission of the cutter head (205), one end of the rotating shaft vertically penetrates through the other end of the shell, the axis of the rotating shaft is parallel to the axis of the output shaft of the second driving motor (208), the second gear (207) is connected with the output shaft of the second driving motor (208) in a transmission manner, the surface of the rotating shaft is connected with the first gear (206), and the first gear (206) and the second gear (207) are mutually meshed, two parallel third sliding grooves (209) are formed in the bottom of the outer shell (204) along the width direction of the outer shell, and the top of the nut (211) is fixedly connected with the bottom of the outer shell (204); the bottom of shell body (204) passes through third spout (209) sliding connection be in the top of leg fixture (1), two lead screw support (201) fixed connection respectively is in the lateral wall of leg fixture (1).
3. The integrated circuit board fillet cutting device according to claim 2, wherein the cutter disc (205) comprises a disc body (212), a cutting part (213) is provided along a circumferential direction of the edge of the disc body (212), a polishing area (210) is provided on a top of the disc body (212), and the rotating shaft is fixedly connected to an axial center of the disc body (212); the point that blade disc (205) cutting part (213) and leg (5) contact is point A, the direction of rotation of blade disc (205) is: the point A rotates towards the direction close to the welding leg clamping mechanism (1).
4. The apparatus as claimed in claim 3, wherein the tray (212) is a circular disk, and the distance between the edge line of the blade (213) and the axis of the top of the polishing region (210) is greater than zero.
5. The apparatus for cutting solder tails on an integrated circuit board according to claim 2, wherein a third sliding slot (209) at the bottom of the outer casing (204) in the mobile cutting mechanism (2) is slidably connected to a second linear sliding rail (104) at the top of the slot plate (101) in the solder tail holding mechanism (1); the side walls of the two screw rod supports (201) in the movable cutting mechanism (2) are fixedly connected with two ends of the side vertical surface of the groove plate (101) in the welding leg clamping mechanism (1); the top of a linear sliding plate (302) of the supporting mechanism (3) is fixedly connected with the bottom of the groove plate (101) in the welding leg clamping mechanism (1).
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| CN202110895871.4A CN113523482B (en) | 2021-08-05 | 2021-08-05 | Integrated circuit board welding leg cutting device |
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| CN202110895871.4A CN113523482B (en) | 2021-08-05 | 2021-08-05 | Integrated circuit board welding leg cutting device |
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| CN114101472B (en) * | 2021-11-30 | 2023-04-21 | 内蒙古工业大学 | Aluminum alloy creep aging forming equipment |
| CN113909624B (en) * | 2021-12-08 | 2022-04-26 | 浙江连成环保科技有限公司 | Automatic soldering tin pin shearing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4515048A (en) * | 1983-08-01 | 1985-05-07 | Forsell Glenn W | Method and apparatus for trimming lead wires projecting from printed circuit boards |
| US4586252A (en) * | 1985-02-15 | 1986-05-06 | Avco Corporation | Tool for removing soldered components |
| US8523161B2 (en) * | 2010-08-05 | 2013-09-03 | Hiwin Mikrosystem Corp. | Clamping mechanism automatically adaptable to change of thickness of printed circuit board |
| JP6281242B2 (en) * | 2013-10-28 | 2018-02-21 | 富士電機機器制御株式会社 | Electronic board lead cutting device |
| CN204262248U (en) * | 2014-10-27 | 2015-04-15 | 苍南凯迪电气有限公司 | For the cutter of circuit board cutting |
| CN106670347A (en) * | 2015-11-09 | 2017-05-17 | 江苏施诺照明有限公司 | Cutting machine for weld legs of circuit board |
| CN109894701A (en) * | 2019-03-22 | 2019-06-18 | 夏安祥 | A kind of circuit board foot needle dismounting equipment |
| CN210359014U (en) * | 2019-07-19 | 2020-04-21 | 深圳市创仁科技有限公司 | Welding leg cutting machine |
| CN211248106U (en) * | 2019-11-25 | 2020-08-14 | 蓝科微电子(深圳)有限公司 | Welding pin cutting device of LED integrated circuit board |
| CN211437905U (en) * | 2019-12-20 | 2020-09-08 | 池州市新晟电子科技有限公司 | Welding pin cutting device for integrated circuit board processing |
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