CN116984695B - Automatic brazing device for integrated circuit board - Google Patents
Automatic brazing device for integrated circuit board Download PDFInfo
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- CN116984695B CN116984695B CN202311247186.6A CN202311247186A CN116984695B CN 116984695 B CN116984695 B CN 116984695B CN 202311247186 A CN202311247186 A CN 202311247186A CN 116984695 B CN116984695 B CN 116984695B
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- seat
- integrated circuit
- rod
- pressing
- gear
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- 238000005219 brazing Methods 0.000 title claims abstract description 25
- 230000006835 compression Effects 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 30
- 244000309464 bull Species 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims description 85
- 229910000679 solder Inorganic materials 0.000 claims description 28
- 238000005476 soldering Methods 0.000 claims description 25
- 238000003466 welding Methods 0.000 claims description 16
- 230000006978 adaptation Effects 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000013459 approach Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 12
- 239000000843 powder Substances 0.000 description 9
- 238000005507 spraying Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000001931 thermography Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention relates to the technical field of brazing and discloses an automatic brazing device for an integrated circuit board, which comprises a supporting plate, wherein a sunken positioning groove is formed in the surface of the supporting plate, the positioning groove is matched with the integrated circuit board, mounting holes are formed in four corners of the supporting plate, a compression seat is mounted in the mounting holes, a rotating shaft is fixedly mounted on the lower surface of the compression seat, and the rotating shaft is in threaded connection with the mounting holes; this automatic brazing device of integrated circuit board through the cooperation design of compressing tightly seat, pivot and helicoidal surface and backup pad surface mounting hole and compress tightly piece, hold-down spring and the block and slider, rack bar two, bull stick, gag lever post and spacing ring gear's integrated design, when rotating the compressing tightly seat, compress tightly the piece and can exert the compressive force to the surface of integrated circuit board to after the compressive force reaches qualified compressive force scope, the automatic limitation compresses tightly the seat and rotates, and the operating personnel of being convenient for learn whether integrated circuit board surface compressive force size is qualified.
Description
Technical Field
The invention relates to the technical field of brazing, in particular to an automatic brazing device for an integrated circuit board.
Background
The brazing means a welding method in which a brazing filler metal lower than the melting point of a weldment is heated to a brazing filler metal melting temperature and the weldment is heated, and metal connection is made by filling with a liquid brazing filler metal, and the wave soldering means a soldering method in which the melted brazing filler metal is sprayed into a brazing filler metal wave peak under a certain pressure and the weldment is swept across the wave peak at a certain speed to complete a brazing process.
The integrated circuit board is usually welded and fixed on the integrated circuit board in a wave soldering mode, and before the integrated circuit board is welded, the integrated circuit board needs to be clamped and fixed on a supporting table, so that the electric elements on the surface of the integrated circuit board can be conveniently inserted and installed, and meanwhile, the integrated circuit board can be stably conveyed.
The integrated circuit board clamping and fixing structure is simple in function, the clamping strength of the clamping elastic sheet to the integrated circuit board can not be controlled by the operator through rotation, the operator can not judge whether the clamping strength of the integrated circuit board is qualified or not directly through the clamping elastic sheet, and when the clamping strength of the integrated circuit board is overlarge, the surface of the integrated circuit board can be damaged.
Disclosure of Invention
In order to solve the problem that when the clamping and fixing structure for welding the traditional integrated circuit board is used, an operator cannot directly judge whether the clamping strength of the integrated circuit board is qualified through the clamping elastic sheet, and when the clamping strength of the integrated circuit is overlarge, the surface of the integrated circuit board is damaged.
The invention is realized by the following technical scheme: the utility model provides an automatic brazing device of integrated circuit board, includes the backup pad, the constant head tank that sinks is seted up on the surface of backup pad, constant head tank and integrated circuit board looks adaptation for install the integrated circuit board, the delivery track carries the bottom plate, and carry integrated circuit board to brazing device through the backup pad in, integrated circuit board gets into after brazing device, can pass through scaling powder spraying area, preheating zone and welding zone in proper order, install scaling powder spraying equipment in the scaling powder spraying area, install the pre-heater in the preheating zone, be equipped with wave solder in the welding zone, the mounting hole has all been seted up at the four corners of backup pad, the internally mounted of mounting hole compresses tightly the seat, compresses tightly the seat and is used for fixing the integrated circuit board in the constant head tank;
the lower surface of the pressing seat is fixedly provided with a rotating shaft, the rotating shaft is arranged in a mounting hole and is in threaded connection with the mounting hole, the surface of the rotating shaft is provided with a threaded surface, the inner annular surface of the mounting hole is provided with a threaded ring in threaded engagement with the threaded surface, when the pressing seat rotates, the threaded surface is in threaded engagement with the threaded ring, the pressing seat is rotated to adjust the interval between the pressing seat and the supporting plate, a slotted hole is formed in one side, far away from the rotating shaft, of the lower surface of the pressing seat, and a pressing piece is arranged in the slotted hole and is used for pressing an integrated circuit board;
When the pressing seat is rotated, the pressing piece can approach to the integrated circuit board in the positioning groove, and when the pressing force of the pressing piece on the integrated circuit board reaches the set range of qualified pressing force, the rotating shaft of the pressing seat is locked and kept fixed relative to the supporting plate.
Further, the compressing piece is arranged in the compressing seat in a vertically sliding mode, a compressing spring is arranged on the upper portion of the compressing piece and used for applying elastic pressure to the compressing piece, a blocking block is fixedly connected to the upper end of the compressing spring and used for providing resistance for preventing the compressing spring from rebounding;
the rotating shaft is internally and rotatably provided with a rotating rod, the surface of the rotating rod is fixedly provided with a transmission gear, the inside of the rotating shaft is slidably provided with a limiting rod, the surface of the limiting rod is provided with a tooth surface meshed with the transmission gear, one end of the limiting rod, which is far away from the transmission gear, is provided with a hook-shaped part, the inside of the supporting plate is provided with a limiting gear ring, the limiting gear ring is a one-way ratchet ring, the up-down height of the one-way ratchet ring is larger than the maximum travel of the limiting rod, so that the limiting rod is always positioned in an inner ring of the one-way ratchet ring, when the hook-shaped part of the limiting rod extends out of the side surface of the rotating shaft, the hook-shaped part of the limiting rod can be meshed with a ratchet ring of the inner ring of the limiting gear ring, and when the hook-shaped part of the limiting rod is meshed with the ratchet ring, the rotating shaft and the limiting gear ring are in a relatively fixed state;
The surface of the rotating rod is fixedly provided with a first gear, a toothed bar meshed with the first gear is slidably arranged in the pressing seat, a return spring is arranged between the toothed bar II and the inner wall of the pressing seat, one end, away from the first gear, of the toothed bar II is fixedly provided with a hemispherical sliding block, the sliding block is positioned on an upward moving track of the blocking block, friction resistance exists between the blocking block and the inner wall of the slotted hole, and the top surface inside the slotted hole is positioned at the upper side edge of the sliding block;
when the block pushes the slide block to move, the slide block drives the toothed bar II to move, the toothed bar II drives the rotating rod to rotate through meshing with the gear I, and the transmission gear on the surface of the rotating rod is meshed with the limiting rod, so that the limiting rod extends out of the outer surface of the rotating shaft until the hook-shaped part of the limiting rod is meshed with the ratchet wheel of the inner ring of the limiting gear ring.
The compressing piece has minimum threshold and maximum threshold to the qualified compressing force applied by the surface of the integrated circuit board, and when the resistance of the sliding block and the inner wall of the slotted hole to the blocking block can not prevent the blocking block from moving, the compressing force of the compressing piece to the integrated circuit board is not smaller than the minimum threshold of the qualified compressing force and is not larger than the maximum threshold of the qualified compressing force.
Further, the limiting gear ring is rotatably arranged in the supporting plate, the supporting plate is located at the outer side of the limiting gear ring and provided with an arc limiting groove, a stop block is fixedly arranged on the outer side surface of the limiting gear ring and located in the limiting groove, and a reset spring is arranged between the stop block and the limiting groove.
The block pushes away the sliding block and moves to the top surface position inside the slotted hole, and the rebound length of the compression spring is not greater than the moving distance of the compression piece relative to the supporting plate when the block moves to the maximum stroke inside the limiting groove.
Furthermore, the lower surface of the pressing piece is spherically connected with a ball, so that the indentation of the pressing piece on the surface of the integrated circuit board caused by sliding friction is reduced;
a limiting column is arranged between the compression piece and the compression spring, and continuous V-shaped clamping grooves are distributed on the side surface of the limiting column in an up-down arrangement mode;
the surface fixed mounting of bull stick has the gear two, compress tightly the inside slidable mounting of seat with gear two meshing ratch one, ratch one and ratch two are located the both sides of bull stick, ratch one is kept away from the one end fixed mounting of gear two has conical fixture block, the toper portion of fixture block with V-arrangement draw-in groove looks adaptation, the length of spacing post is greater than compression spring's the biggest deformation volume that compresses tightly, makes the fixture block correspond with spacing post's surface all the time.
When the toothed bar II is meshed with the gear I to drive the rotating rod to rotate, the rotating rod synchronously drives the gear II to rotate, the gear II is meshed with the toothed bar I to drive the toothed bar I to move, and the toothed bar I drives the clamping block to move towards the direction of the V-shaped clamping groove until the clamping block is matched with the V-shaped clamping groove, and at the moment, the clamping block can limit the limiting post to move.
Further, the upper surface fixed mounting who compresses tightly the seat has the holding rod, is convenient for drive through the holding rod and compresses tightly the seat and rotate, slidable mounting has the depression bar about the inside of holding rod, the downshift the depression bar can stretch into inside the slotted hole, when pressing down the depression bar, can make the block reset, be equipped with the spring between depression bar and the holding rod.
Further, the integrated circuit board is arranged in the supporting plate, the bottom plate is positioned in the conveying rail, the bottom plate is of a return structure, the ground of the front side and the rear side of the bottom plate along the advancing direction of the conveying rail is of a concave structure design, the integrated circuit board in the supporting plate is convenient to contact with solder, the supporting plate is positioned in the bottom plate, a mounting groove is formed in the surface, close to one side of the conveying rail, of the supporting plate, a sliding seat is horizontally and slidably arranged in the mounting groove, the supporting plate can move relative to the sliding seat on the front side and the rear side of the conveying rail in the conveying direction, and a vertical groove is formed in the surface of the sliding seat;
The inner side surface of the bottom plate, which corresponds to the mounting groove, is fixedly provided with a supporting rod, one end of the supporting rod, which is far away from the bottom plate, is vertically and slidably arranged in the vertical groove, and the supporting plate can move up and down relative to the bottom plate through the cooperation of the sliding seat and the supporting rod;
the side wall horizontal sliding of vertical groove installs the locking lever, the bracing piece with the lockhole has been seted up to the lateral wall that vertical groove corresponds, the lockhole with locking lever looks adaptation, when locking lever and lockhole cooperation, be relatively fixed state between bracing piece and the slide.
Further, mounting seats are fixedly mounted on the upper surface of the supporting plate along the two sides of the travelling direction of the bottom plate, a sleeve is rotatably mounted in the mounting seats, a linear chute is formed in the sleeve along the rod body direction, and an annular groove is formed in the middle of the linear chute;
an inner rod is arranged in the sleeve, one end of the inner rod, which is positioned in the sleeve, is of a T-shaped structure, and the T-shaped structure of the inner rod is matched with the linear chute and the annular groove;
when the T-shaped structure at one end of the inner rod is positioned in the linear chute, the inner rod can not slide relative to the sleeve at the moment, so that the supporting plate can not move relative to the bottom plate at the front side and the back side of the travelling direction of the conveying track in the state, and when the T-shaped structure at one end of the inner rod is positioned in the linear chute, the inner rod can slide relative to the sleeve at the moment.
The upper surface fixed mounting of bottom plate has the supporting seat, the supporting seat is located in the extension direction of interior pole, the supporting seat is close to vertical guide slot has been seted up on the surface of interior pole one side, vertical guide slot extends to inside the bottom plate, the interior pole is kept away from telescopic one end slidable mounting is in about vertical guide slot is inside, and vertical guide slot is used for the upper and lower direction removal of interior pole.
Further, springs are arranged between the two side surfaces of the sliding seat and the mounting groove, and an electromagnetic group is arranged between the sliding seat and the inner side wall of the mounting groove;
springs are arranged between the upper and lower side surfaces of the support rod and the upper and lower surfaces of the inner wall of the sliding seat, and an electromagnetic group is arranged between the support rod and the inner wall of the sliding seat;
the spring is used for resetting the sliding seat and the supporting rod, meanwhile, the spring is matched with the electromagnetic group to generate vibration, redundant solder can be conveniently shaken off, the phenomenon of tin piling and tin hanging is reduced, and the amplitude and frequency of the vibration of the sliding seat and the supporting rod can be controlled by controlling the magnetic force of the electromagnetic group.
The electromagnetic group consists of an electromagnetic coil and a magnetic block, the electromagnetic coil is arranged in the inner side wall of the mounting groove or the inner wall of the sliding seat, the magnetic block is arranged on the outer side surface of the sliding seat or the surface of the supporting rod, and the supporting plate and the inner part of the sliding seat are respectively provided with a power supply module for supplying current for the corresponding electromagnetic coil;
The soldering device is provided with a wave soldering wave crest real-time monitoring module which is used for monitoring the wave crest height of solder in real time, the wave crest height of the solder can be obtained after the wave crest real-time monitoring module can obtain a real-time image of the wave crest of the solder through image recognition processing, or the wave crest height of the solder can be obtained in real time through an infrared thermal imaging technology, and the wave crest soldering wave crest real-time monitoring module is connected with the supporting plate entering a welding area and a power module inside the sliding seat through an Internet of things module network.
Through carrying out real-time supervision to the crest height of solder, can be according to the crest height of solder height control integrated circuit board in the backup pad to according to the wave crest instantaneous change of solder, under the unchangeable circumstances of delivery track conveying speed, change the travel speed of integrated circuit board, and then can make the better with solder contact of integrated circuit board, in order to improve the welding effect of integrated circuit board.
Further, a key groove is formed in the surface of a rotating shaft on the lower surface of the pressing seat, a linkage gear is rotatably arranged in the supporting plate, and the linkage gear is in sliding connection with the rotating shaft through a spline;
The inside slidable mounting of backup pad with linkage gear engagement's rack, when compressing tightly the seat and rotating, can drive the linkage gear and rotate together, linkage gear and rack engagement drive the rack and remove.
Further, the sliding seat and the surface corresponding to the inner side wall of the mounting groove are elastically provided with stop rods in a telescopic manner, the inner side wall of the mounting groove is provided with through holes matched with the stop rods, when the stop rods are matched with the through holes, the sliding seat and the supporting plate are in a relatively fixed state, the two stop rods are in a group, the two stop rods in the same group are not on the same straight line of the sliding seat moving relative to the mounting groove, and due to the matched design of the two stop rods, the stability of the connection between the sliding seat and the supporting plate can be improved, and meanwhile, the moving stroke of the supporting plate relative to the sliding seat can be prevented from being influenced;
the T-shaped rod is horizontally and slidably arranged in the supporting plate, a spring is arranged between the T-shaped rod and the inner wall of the supporting plate, a pushing plate is fixedly arranged on the surface of the T-shaped rod, a jacking column is fixedly arranged on the surface of the pushing plate, the through hole is positioned in the moving direction of the jacking column, and when the jacking column moves into the through hole, the jacking column can jack the blocking rod out of the through hole;
two groups of racks corresponding to two pressing seats which are diagonally distributed are provided with a lug at one end far away from the linkage gear, the T-shaped rod is positioned in the moving direction of the lug, and when the lug moves towards the T-shaped rod, the T-shaped rod is pushed to move, and the T-shaped rod drives the jacking column to move towards the through hole through the push plate;
The sliding seat is characterized in that a sliding rod is arranged in the sliding seat in a sliding manner up and down, a spring is arranged between the sliding rod and the inner wall of the sliding seat, the lower end of the sliding rod can extend out of the lower surface of the sliding seat, the lower end of the sliding rod is a semi-annular curved surface, a hole structure matched with the lower end of the sliding rod is formed in the bottom surface of the inside of the mounting groove, a wedge block is arranged on the surface of the locking rod, a spring is arranged between the locking rod and the inner wall of the sliding seat, a top block is arranged on the surface of the sliding rod, the wedge block is positioned in the moving direction of the top block, when the sliding seat slides relative to the mounting groove, the sliding rod is pushed back into the sliding seat, the top block on the surface of the sliding rod is contacted with the wedge block, and the locking rod is pushed to move away from the locking hole through the wedge block, so that the locking rod is separated from the locking hole, and the sliding rod can slide up and down relative to the sliding seat.
The sliding rods, the locking rods and the locking holes are all two groups and are used for improving the connection stability of the supporting rods and the sliding seat, and the two groups of sliding rods are not on the same straight line of the sliding seat moving relative to the mounting groove, so that the sliding rods and the locking rods can be prevented from being reset by mistake.
Further, the sleeve is located one end surface fixed mounting in the mount pad has gear structure, two that correspond with another set of diagonal distribution two compress tightly the one end that the seat kept away from the linkage gear is equipped with the straight tooth face, the straight tooth face with gear structure on sleeve surface meshes, and when the rack drove straight tooth face and remove, the straight tooth face meshes with gear structure, drives the sleeve and rotates, and during the sleeve rotation, can adjust the T shape structure of interior pole and the relative position relation of straight line spout and ring channel, and the cross-section shape of the inside straight line spout of sleeve is fan-shaped, and when straight tooth face and gear structure meshing drive sleeve rotation, after the T shape structure of interior pole one end got into straight line spout from the ring channel, the straight tooth face is in subsequent continuous syntropy removal, and T shape structure of interior pole one end is located the fan-shaped section of straight line spout all the time.
Compared with the prior art, the invention has the following beneficial effects:
1. this automatic brazing device of integrated circuit board, through the cooperation design of compressing tightly seat, pivot and helicoidal surface and backup pad surface mounting hole and compress tightly piece, hold-down spring and stop and slider, rack II, bull stick, gag lever post and spacing ring gear's integrated design, when rotating the compressing tightly seat, compress tightly the piece and can exert the compressive force to the surface of integrated circuit board, and after the compressive force reaches qualified compressive force scope, the automatic restriction compresses tightly the seat and rotates, the operating personnel of being convenient for learn whether integrated circuit board surface compressive force size is qualified, the compressing tightly piece is effectual to the compression of integrated circuit board.
2. This automatic brazing device of integrated circuit board, through the combined design of bracing piece and lockhole and slide, slide bar and locking lever, the combined design of linkage gear, rack, T shape pole and push pedal and the combined design of linkage gear and rack and sleeve and interior pole, before fixed integrated circuit board, can make to keep relatively fixed state between backup pad and the bottom plate, be convenient for install the electrical component on integrated circuit board surface, when pressing the fastening to integrated circuit board, can remove the fixed state between backup pad and the bottom plate voluntarily, be convenient for follow-up position to integrated circuit board in the backup pad is adjusted, the integrated circuit board welding of bottom plate and backup pad is with centre gripping brace table excellent in use effect, convenient to use.
Drawings
FIG. 1 is a schematic diagram of a process flow for peak soldering an integrated circuit board according to the present invention;
FIG. 2 is a schematic view showing the combined structure of the bottom plate and the support plate of the integrated circuit board in the conveying track according to the present invention;
FIG. 3 is a schematic view of the internal fitting structure of the pressing seat and the supporting plate of the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3A according to the present invention;
FIG. 5 is a schematic diagram showing the internal cooperation structure of the pressing seat and the supporting plate;
FIG. 6 is a schematic diagram of the fit structure of the transmission gear and the limit lever in the rotating shaft and the limit gear ring;
FIG. 7 is a schematic view showing a combination structure of a support plate and a bottom plate according to the present invention;
FIG. 8 is a schematic view of the structure of FIG. 7B according to the present invention;
FIG. 9 is a schematic view showing the internal cooperation structure of the support rod and the slide base of the present invention;
FIG. 10 is a schematic view showing the combined structure of the longitudinal and transverse directions and the bottom plate inside the support plate of the present invention;
FIG. 11 is a schematic view of the fit structure of the inner rod and the sleeve according to the present invention;
FIG. 12 is a schematic cross-sectional view of the sleeve of the present invention at an annular groove;
FIG. 13 is a schematic view of the structure of FIG. 10C according to the present invention;
FIG. 14 is a schematic view of the structure of FIG. 10 at D in accordance with the present invention;
fig. 15 is a perspective view of the cooperation structure of the bottom plate and the support plate of the present invention.
In the figure: 1. a conveying rail; 2. a bottom plate; 21. a support base; 3. a support plate; 31. a positioning groove; 32. a mounting hole; 33. a mounting groove; 4. a compressing seat; 41. a rotating shaft; 411. a thread surface; 42. a pressing member; 421. a compression spring; 422. a block; 423. a limit column; 43. a rotating rod; 44. a limit rod; 45. a toothed bar I; 451. a clamping block; 46. a grip; 461. a compression bar; 5. limiting the gear ring; 51. a stop block; 6. a toothed bar II; 61. a slide block; 7. a slide; 71. a stop lever; 8. a support rod; 9. a slide bar; 91. a lock lever; 10. an electromagnetic group; 11. a linkage gear; 111. a rack; 12. a T-bar; 121. a push plate; 122. a top column; 13. a mounting base; 14. a sleeve; 141. a straight line chute; 142. an annular groove; 15. an inner rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of the automatic soldering device for an integrated circuit board is as follows:
embodiment one:
referring to fig. 1-5 and 15, an automatic soldering device for an integrated circuit board comprises a conveying track 1, a bottom plate 2 and a supporting plate 3, wherein the integrated circuit board is installed in the supporting plate 3, the bottom plate 2 is positioned inside the conveying track 1, the bottom plate 2 is of a loop structure, and the ground of the front side and the rear side of the bottom plate 2 along the advancing direction of the conveying track 1 adopts a concave structure design, so that the integrated circuit board in the supporting plate 3 is convenient to contact with solder.
The backup pad 3 is located the inside of bottom plate 2, the constant head tank 31 of sinking has been seted up on the surface of backup pad 3, constant head tank 31 and integrated circuit board looks adaptation for install the integrated circuit board, delivery track 1 carries bottom plate 2 to carry the integrated circuit board to the brazing device in through backup pad 3, after the integrated circuit board gets into the brazing device, can pass through scaling powder spraying area in proper order, preheating zone and welding zone, install scaling powder spraying equipment in the scaling powder spraying area, install the pre-heater in the preheating zone, be equipped with wave solder in the welding zone, mounting hole 32 has all been seted up at the four corners of backup pad 3, the internally mounted of mounting hole 32 compresses tightly seat 4, compress tightly seat 4 and be used for fixing the integrated circuit board in constant head tank 31.
The lower surface fixed mounting who compresses tightly seat 4 has pivot 41, pivot 41 installs inside mounting hole 32, the surface of pivot 41 is provided with screw face 411, the inner ring face of mounting hole 32 is equipped with the screwed ring with screw face 411 screw engagement, when compressing tightly seat 4 rotates, screw face 411 and screwed ring screw engagement, compress tightly the interval between seat 4 and the backup pad 3 through rotatory regulation of compressing tightly seat 4, the slotted hole has been seted up to one side that compressing tightly seat 4 lower surface kept away from pivot 41, the inside of slotted hole is provided with compressing tightly piece 42, compressing tightly piece 42 is used for compressing tightly the integrated circuit board, compressing tightly the lower surface spherical connection of piece 42 has the ball, reduce compressing tightly piece 42 because of sliding friction causes the indentation to the integrated circuit board surface.
When rotating and compressing tightly seat 4, compress tightly the piece 42 and can be close to the integrated circuit board of constant head tank 31 inside, compress tightly when the piece 42 reaches the range of the qualified packing force of settlement to the integrated circuit board, compress tightly the pivot 41 lock of seat 4 and keep fixed relative backup pad 3, realize that the pivot 41 lock relative backup pad 3 specific structure of locking includes:
the compression piece 42 is installed inside the compression seat 4 in a vertically sliding mode, a compression spring 421 is arranged on the upper portion of the compression piece 42, the compression spring 421 is used for applying elastic pressure to the compression piece 42, a blocking block 422 is fixedly connected to the upper end of the compression spring 421, and the blocking block 422 is used for providing resistance for preventing the compression spring 421 from rebounding.
The inside rotation of pivot 41 installs bull stick 43, the fixed surface of bull stick 43 installs drive gear, the inside slidable mounting of pivot 41 has gag lever post 44, the surface of gag lever post 44 is equipped with the flank of tooth with drive gear meshing, the one end that gag lever post 44 kept away from drive gear is colluded shape portion, the inside of backup pad 3 is provided with spacing ring gear 5, spacing ring gear 5 is the unidirectional ratchet ring, the upper and lower height of unidirectional ratchet ring is greater than the maximum stroke that gag lever post 44 reciprocated, make gag lever post 44 be located unidirectional ratchet ring's inner ring all the time, the collude shape portion of gag lever post 44 can mesh with the ratchet ring of spacing ring gear 5 inner ring when stretching out the side surface of pivot 41, be relatively fixed state between pivot 41 and the spacing ring gear 5 when colludeing shape portion of gag lever post 44 and the ratchet ring meshing.
The fixed surface mounting of bull stick 43 has the gear one, compresses tightly the inside slidable mounting of seat 4 and is equipped with reset spring with the rack bar second 6 of gear one meshing, is equipped with the hemispherical slider 61 between the inner wall of rack bar second 6 and compressing tightly seat 4, and the one end fixed mounting that rack bar second 6 kept away from the gear one, slider 61 are located the upward movement orbit of block 422, exist frictional resistance between block 422 and the inner wall of slotted hole, and the inside top surface of slotted hole is located the upper side position of slider 61.
When the block piece 422 pushes the slide block 61 to move, the slide block 61 drives the toothed bar II 6 to move, the toothed bar II 6 drives the rotating rod 43 to rotate through meshing with the gear I, and a transmission gear on the surface of the rotating rod 43 is meshed with the limit rod 44, so that the limit rod 44 extends out of the outer side surface of the rotating shaft 41 until the hook-shaped part of the limit rod 44 is meshed with a ratchet wheel of the inner ring of the limit gear ring 5.
The minimum threshold and the maximum threshold exist for the qualified pressing force applied by the pressing piece 42 to the surface of the integrated circuit board, and when the resistance of the sliding block 61 and the inner wall of the slot to the block 422 cannot prevent the block 422 from moving, the pressing force of the pressing piece 42 to the integrated circuit board is not smaller than the minimum threshold of the qualified pressing force and is not larger than the maximum threshold of the qualified pressing force.
The limiting gear ring 5 is rotatably arranged in the supporting plate 3, an arc limiting groove is formed in the outer side position of the supporting plate 3, which is located on the limiting gear ring 5, a stop block 51 is fixedly arranged on the outer side surface of the limiting gear ring 5, the stop block 51 is located inside the limiting groove, and a reset spring is arranged between the stop block 51 and the limiting groove.
The block 422 pushes the slider 61 away and moves to the top surface position inside the slot, and the rebound length of the hold-down spring 421 is not greater than the distance that the hold-down member 42 moves relative to the support plate 3 when the stopper 51 moves to the maximum stroke inside the limit slot.
A limiting column 423 is arranged between the compression piece 42 and the compression spring 421, and continuous V-shaped clamping grooves are distributed on the side surface of the limiting column 423 in an up-down arrangement mode; the surface fixed mounting of bull stick 43 has the gear two, compresses tightly the inside slidable mounting of seat 4 and has the rack one 45 with gear two meshing, rack one 45 and rack two 6 are located the both sides of bull stick 43 respectively, and the one end fixed mounting that rack one 45 kept away from gear two has conical fixture block 451, the conical part and the V-arrangement draw-in groove looks adaptation of fixture block 451, and the length of spacing post 423 is greater than the biggest deformation volume that compresses tightly of compression spring 421, makes fixture block 451 correspond with the surface of spacing post 423 all the time.
When the toothed bar II 6 is meshed with the gear I to drive the rotating rod 43 to rotate, the rotating rod 43 synchronously drives the gear II to rotate, the gear II is meshed with the toothed bar I45 to drive the toothed bar I45 to move, and the toothed bar I45 drives the clamping block 451 to move towards the direction of the V-shaped clamping groove until the clamping block 451 is matched with the V-shaped clamping groove, and at the moment, the clamping block 451 can limit the limiting post 423 to move.
The upper surface fixed mounting who compresses tightly seat 4 has holding rod 46, is convenient for drive through holding rod 46 and compresses tightly seat 4 rotation, and slidable mounting has depression bar 461 about the inside of holding rod 46, and the depression bar 461 that moves down can stretch into the slotted hole inside, and when pressing down depression bar 461, can make the block 422 reset, is equipped with the spring between depression bar 461 and the holding rod 46.
Embodiment two:
referring to fig. 1-15, an automatic soldering device for an integrated circuit board comprises a conveying track 1, a bottom plate 2 and a supporting plate 3, wherein the integrated circuit board is installed in the supporting plate 3, the bottom plate 2 is positioned inside the conveying track 1, the bottom plate 2 is of a loop-shaped structure, and the ground of the front side and the rear side of the bottom plate 2 along the advancing direction of the conveying track 1 adopts a concave structural design, so that the integrated circuit board in the supporting plate 3 is convenient to contact with solder.
The backup pad 3 is located the inside of bottom plate 2, the constant head tank 31 of sinking has been seted up on the surface of backup pad 3, constant head tank 31 and integrated circuit board looks adaptation for install the integrated circuit board, delivery track 1 carries bottom plate 2 to carry the integrated circuit board to the brazing device in through backup pad 3, after the integrated circuit board gets into the brazing device, can pass through scaling powder spraying area in proper order, preheating zone and welding zone, install scaling powder spraying equipment in the scaling powder spraying area, install the pre-heater in the preheating zone, be equipped with wave solder in the welding zone, mounting hole 32 has all been seted up at the four corners of backup pad 3, the internally mounted of mounting hole 32 compresses tightly seat 4, compress tightly seat 4 and be used for fixing the integrated circuit board in constant head tank 31.
The lower surface fixed mounting who compresses tightly seat 4 has pivot 41, pivot 41 installs inside mounting hole 32, the surface of pivot 41 is provided with screw thread face 411, the inner ring face of mounting hole 32 is equipped with the screwed ring with screw thread face 411 screw thread engagement, when compressing tightly seat 4 rotates, screw thread face 411 and screwed ring screw thread engagement, can adjust the distance between compressing tightly seat 4 and backup pad 3, the slotted hole has been seted up to one side that compressing tightly seat 4 lower surface kept away from pivot 41, the inside of slotted hole is provided with compressing tightly piece 42, compressing tightly piece 42 is used for compressing tightly the integrated circuit board.
The compression piece 42 is installed inside the compression seat 4 in a vertically sliding mode, a compression spring 421 is arranged on the upper portion of the compression piece 42, the compression spring 421 is used for applying elastic pressure to the compression piece 42, a blocking block 422 is fixedly connected to the upper end of the compression spring 421, and the blocking block 422 is used for providing resistance for preventing the compression spring 421 from rebounding.
The inside rotation of pivot 41 installs bull stick 43, the fixed surface of bull stick 43 installs drive gear, the inside slidable mounting of pivot 41 has gag lever post 44, the surface of gag lever post 44 is equipped with the flank of tooth with drive gear meshing, the one end that gag lever post 44 kept away from drive gear is colluded shape portion, the inside of backup pad 3 is provided with spacing ring gear 5, spacing ring gear 5 is the unidirectional ratchet ring, the upper and lower height of unidirectional ratchet ring is greater than the maximum stroke that gag lever post 44 reciprocated, make gag lever post 44 be located unidirectional ratchet ring's inner ring all the time, the collude shape portion of gag lever post 44 can mesh with the ratchet ring of spacing ring gear 5 inner ring when stretching out the side surface of pivot 41, be relatively fixed state between pivot 41 and the spacing ring gear 5 when colludeing shape portion of gag lever post 44 and the ratchet ring meshing.
The fixed surface mounting of bull stick 43 has the gear one, compresses tightly the inside slidable mounting of seat 4 and is equipped with reset spring with the rack bar second 6 of gear one meshing, be equipped with hemispherical slider 61 between rack bar second 6 and the inner wall of compressing tightly seat 4, the one end fixed mounting that rack bar second 6 kept away from the gear one, slider 61 is located the upward movement orbit of block 422, has frictional resistance between block 422 and the inner wall of slotted hole, the inside top surface of slotted hole is located the upper side position of slider 61.
When the block piece 422 pushes the slide block 61 to move, the slide block 61 drives the toothed bar II 6 to move, the toothed bar II 6 drives the rotating rod 43 to rotate through meshing with the gear I, and a transmission gear on the surface of the rotating rod 43 is meshed with the limit rod 44, so that the limit rod 44 extends out of the outer side surface of the rotating shaft 41 until the hook-shaped part of the limit rod 44 is meshed with a ratchet wheel of the inner ring of the limit gear ring 5.
The minimum threshold and the maximum threshold exist for the qualified pressing force applied by the pressing piece 42 to the surface of the integrated circuit board, and when the resistance of the sliding block 61 and the inner wall of the slot to the block 422 cannot prevent the block 422 from moving, the pressing force of the pressing piece 42 to the integrated circuit board is not smaller than the minimum threshold of the qualified pressing force and is not larger than the maximum threshold of the qualified pressing force.
The limiting gear ring 5 is rotatably arranged in the supporting plate 3, an arc limiting groove is formed in the outer side position of the supporting plate 3, which is located on the limiting gear ring 5, a stop block 51 is fixedly arranged on the outer side surface of the limiting gear ring 5, the stop block 51 is located inside the limiting groove, and a reset spring is arranged between the stop block 51 and the limiting groove.
The block 422 pushes the slider 61 away and moves to the top surface position inside the slot, and the rebound length of the hold-down spring 421 is not greater than the distance that the hold-down member 42 moves relative to the support plate 3 when the stopper 51 moves to the maximum stroke inside the limit slot.
The mounting groove 33 has been seted up on the surface that backup pad 3 is close to one side of delivery track 1, the inside horizontal slip of mounting groove 33 installs slide 7, the backup pad 3 can be relative slide 7 in the fore-and-aft both sides of delivery track 1's the direction of delivery, all be equipped with the spring between slide 7's both sides surface and the mounting groove 33, be equipped with electromagnetic group 10 between slide 7 and the inside wall of mounting groove 33, electromagnetic group 10 comprises solenoid and magnetic block, the solenoid is installed in the inside wall of mounting groove 33, the magnetic block is installed at the outside surface of slide 7, backup pad 3 internally mounted has the power module for solenoid provides the electric current.
The surface of the sliding seat 7 is provided with a vertical groove; the inboard fixed surface that bottom plate 2 and mounting groove 33 correspond installs bracing piece 8, and the one end that bottom plate 2 was kept away from to bracing piece 8 slidable mounting is inside vertical groove from top to bottom, and backup pad 3 accessible slide 7 and the cooperation of bracing piece 8 reciprocate relative bottom plate 2.
Springs are arranged between the upper surface and the lower surface of the upper side and the lower surface of the lower side of the supporting rod 8 and the upper surface and the lower surface of the inner wall of the sliding seat 7, an electromagnetic group 10 is arranged between the supporting rod 8 and the inner wall of the sliding seat 7, the electromagnetic group 10 consists of an electromagnetic coil and a magnetic block, the electromagnetic coil is arranged in the inner wall of the sliding seat 7, the magnetic block is arranged on the surface of the supporting rod 8, and a power module for supplying current for the electromagnetic coil is arranged in the sliding seat 7.
The spring is used for resetting the sliding seat 7 and the supporting rod 8, meanwhile, the spring is matched with the electromagnetic group 10 to generate vibration, redundant solder can be conveniently shaken off, phenomenon of tin piling and tin hanging is reduced, and the amplitude and frequency of vibration of the sliding seat 7 and the supporting rod 8 can be controlled by controlling the magnetic force of the electromagnetic group 10.
The soldering device is provided with a wave soldering wave crest real-time monitoring module which is used for monitoring the wave crest height of solder in real time, the wave crest height of the solder can be obtained by the wave soldering wave crest real-time monitoring module through obtaining a real-time image of the wave crest of the solder after image identification processing, or the wave crest height of the solder can be obtained in real time through an infrared thermal imaging technology, and the wave crest soldering wave crest real-time monitoring module is connected with a supporting plate 3 entering a welding area and a power module inside a sliding seat 7 through an Internet of things module network.
Through carrying out real-time supervision to the crest height of solder, can be according to the crest height of solder height control integrated circuit board in backup pad 3 to according to the wave crest instantaneous change of solder, under the unchangeable circumstances of delivery track 1 conveying speed, change the travel speed of integrated circuit board, and then can make the better with solder contact of integrated circuit board, in order to improve the welding effect of integrated circuit board.
The side wall horizontal slip in vertical groove installs locking lever 91, and the lockhole has been seted up to the side wall that bracing piece 8 corresponds with vertical groove, lockhole and locking lever 91 looks adaptation, and when locking lever 91 and lockhole cooperation, be relatively fixed state between bracing piece 8 and the slide 7.
The inside of slide 7 slidable mounting has slide bar 9 from top to bottom, be equipped with the spring between the inner wall of slide 9 and slide 7, the lower extreme of slide bar 9 can stretch out the lower surface of slide 7, the lower extreme of slide bar 9 is semi-annular curved surface, the hole structure with the lower extreme looks adaptation of slide bar 9 has been seted up to the bottom surface in mounting groove 33, the surface of lock bar 91 is provided with the voussoir, be equipped with the spring between the inner wall of lock bar 91 and slide 7, the surface of slide bar 9 is provided with the kicking block, the voussoir is located the removal direction of kicking block, when slide 7 slides relative mounting groove 33, slide bar 9 is pushed back inside slide 7, the kicking block and the voussoir contact on slide bar 9 surface, promote the lock bar 91 to the direction removal that keeps away from the lockhole through the voussoir, make lock bar 91 and lockhole separation, the bracing piece 8 can slide up and down relative slide 7 this moment.
The sliding rods 9, the locking rods 91 and the locking holes are all provided with two groups, which are used for improving the stability of the connection between the supporting rods 8 and the sliding seat 7, and the two groups of sliding rods 9 are not on the same straight line of the sliding seat 7 moving relative to the mounting groove 33, so that the sliding rods 9 and the locking rods 91 can be prevented from being reset by mistake.
The upper surface of the supporting plate 3 is fixedly provided with mounting seats 13 on both sides along the advancing direction of the bottom plate 2, a sleeve 14 is rotatably arranged in each mounting seat 13, a linear chute 141 is formed in each sleeve 14 along the rod body direction, and an annular groove 142 is formed in the middle of each linear chute 141; the inside of sleeve 14 is provided with interior pole 15, and the one end that interior pole 15 is located the inside of sleeve 14 is T shape structure, and the T shape structure of interior pole 15 is with sharp spout 141 and ring channel 142 looks adaptation.
The T-shaped structure at one end of the inner rod 15 is located in the annular groove 142, but not in the linear chute 141, and at this time the inner rod 15 cannot slide with respect to the sleeve 14, so that the support plate 3 cannot move with respect to the base plate 2 on both sides of the traveling direction of the conveyor track 1 in this state, and when the T-shaped structure at one end of the inner rod 15 is located in the linear chute 141, at this time the inner rod 15 can slide with respect to the sleeve 14.
The upper surface fixed mounting of bottom plate 2 has supporting seat 21, and supporting seat 21 is located the extension direction of interior pole 15, and vertical guide slot has been seted up on the surface of supporting seat 21 near interior pole 15 one side, and vertical guide slot extends to inside bottom plate 2, and the one end that sleeve 14 was kept away from to interior pole 15 slidable mounting is inside vertical guide slot from top to bottom, and vertical guide slot is used for the upper and lower direction removal of interior pole 15.
A key groove is formed in the surface of a rotating shaft 41 on the lower surface of the pressing seat 4, a linkage gear 11 is rotatably arranged in the supporting plate 3, and the linkage gear 11 is in sliding connection with the rotating shaft 41 through a spline; the rack 111 meshed with the linkage gear 11 is slidably arranged in the support plate 3, and when the pressing seat 4 rotates, the linkage gear 11 is driven to rotate together, and the linkage gear 11 is meshed with the rack 111 to drive the rack 111 to move.
The pin 71 is installed to the corresponding surface elasticity flexible of slide 7 and mounting groove 33's inside wall, the through-hole with pin 71 looks adaptation has been seted up to the inside wall of mounting groove 33, when pin 71 and through-hole cooperation, be the relatively fixed state between slide 7 and the backup pad 3, two pins 71 are a set of, two pins 71 in same group are not on the same straight line that slide 7 moved relative mounting groove 33, the cooperation design of two pins 71 can improve the stability of slide 7 and backup pad 3 connection, can avoid influencing the stroke that backup pad 3 moved relative slide 7 simultaneously.
The inside horizontal slip of backup pad 3 is equipped with T shape pole 12, is equipped with the spring between the inner wall of T shape pole 12 and backup pad 3, and the fixed surface of T shape pole 12 installs push pedal 121, and the fixed surface of push pedal 121 installs jack-prop 122, and the through-hole is located the direction of movement of jack-prop 122, and jack-prop 122 moves to the inside of the through-hole, and jack-prop 122 can be with the ejecting through-hole of pin 71.
Two sets of racks 111 corresponding to two pressing seats 4 distributed diagonally in one set are provided with protruding blocks at one end far away from the linkage gear 11, the T-shaped rod 12 is located in the moving direction of the protruding blocks, when the protruding blocks move towards the direction of the T-shaped rod 12, the T-shaped rod 12 is pushed to move, and the T-shaped rod 12 drives the jacking column 122 to move towards the direction of the through hole through the push plate 121.
The gear structure is fixedly arranged on one end surface of the sleeve 14 positioned in the mounting seat 13, a straight tooth surface is arranged at one end, away from the linkage gear 11, of the two racks 111 corresponding to the other two pressing seats 4 which are distributed diagonally, the straight tooth surface is meshed with the gear structure on the surface of the sleeve 14, when the racks 111 drive the straight tooth surface to move, the straight tooth surface is meshed with the gear structure to drive the sleeve 14 to rotate, the relative position relation between the T-shaped structure of the inner rod 15 and the linear chute 141 and the annular groove 142 can be adjusted when the sleeve 14 rotates, the cross section of the linear chute 141 in the sleeve 14 is in a fan shape, and when the straight tooth surface is meshed with the gear structure to drive the sleeve 14 to rotate, after the T-shaped structure at one end of the inner rod 15 enters the linear chute 141 from the annular groove 142, the straight tooth surface is always positioned in the fan-shaped cross section of the linear chute 141 in the subsequent continuous same direction movement.
During the welding processing of the integrated circuit board, the clamping and fixing principle of the integrated circuit board is as follows:
before the integrated circuit board is placed in the positioning groove 31 in the support plate 3, the support plate 3 and the bottom plate 2 are in a fixed state, the integrated circuit board is placed in the positioning groove 31, after the electric element is inserted and installed on the surface of the integrated circuit board, the holding rod 46 rotates to press the seat 4, the pressing seat 4 drives the rotating shaft 41 to rotate in the mounting hole 32, the threaded surface 411 on the surface of the rotating shaft 41 is meshed with the threaded ring in the mounting hole 32, and the pressing seat 4 moves towards the direction close to the support plate 3.
The rotation of the pressing seat 4 can drive the pressing piece 42 to move to the upper side of the integrated circuit board, meanwhile, the pressing piece 42 can move towards the surface direction of the integrated circuit board and be in contact with the surface of the integrated circuit board, the integrated circuit board applies reverse acting force to the pressing piece 42, the pressing spring 421 is extruded, and the pressing piece 42 is matched with the positioning groove 31 to extrude and fix the integrated circuit board.
When the integrated circuit board pushes the sliding block 61 to move by the reverse acting force of the pressing piece 42, the sliding block 61 drives the toothed bar two 6 to move together, the toothed bar two 6 is meshed with the gear one to drive the rotating rod 43 to rotate, the transmission gear on the surface of the rotating rod 43 is meshed with the limiting rod 44, the limiting rod 44 extends out of the outer side surface of the rotating shaft 41 until the hook-shaped part of the limiting rod 44 is meshed with the ratchet wheel of the inner ring of the limiting gear ring 5, at the moment, the rotating shaft 41 and the limiting gear ring 5 are relatively fixed, the pressing seat 4 continues to rotate, the stop block 51 on the outer side surface of the limiting gear ring 5 moves in the limiting groove, at the moment, the pressing piece 42 can continue to move towards the integrated circuit board until the stop block 51 is limited by the limiting groove to move, at the moment, the pressing seat 4 cannot continue to rotate, and at the same time, the pressing force of the pressing piece 42 on the integrated circuit board is within a qualified pressing force range.
The bull stick 43 drives the rotation of gear two in step, gear two and toothed bar one 45 meshing drive toothed bar one 45 and remove, toothed bar one 45 drives fixture block 451 to the direction removal of V-arrangement draw-in groove, until fixture block 451 and V-arrangement draw-in groove cooperation, fixture block 451 can restrict spacing post 423 and remove this moment, along with compressing tightly the continuation rotation of seat 4, fixture block 451 through the restriction of the removal to spacing post 423, can increase the clamping force of compressing tightly piece 42 to the integrated circuit board, the cooperation of fixture block 451 and V-arrangement draw-in groove can restrict the range that compresses tightly piece 42 from top to bottom beats.
The integrated circuit board can be clamped and fixed in the positioning groove 31 by sequentially rotating the pressing seats 4 at four corners of the supporting plate 3.
When the pressing seat 4 is rotated, the rotating shaft 41 drives the linkage gear 11 to rotate together, the linkage gear 11 drives the rack 111 to move, the lug on the surface of the rack 111 corresponding to the T-shaped rod 12 pushes the T-shaped rod 12 to move, the T-shaped rod 12 pushes the stop rod 71 out of the through hole through the push plate 121 and the jacking column 122, at the moment, the relative fixing state of the sliding seat 7 and the supporting plate 3 is released, the straight tooth surface on the surface of the rack 111 corresponding to the sleeve 14 is meshed with the gear structure on the surface of the sleeve 14, the sleeve 14 is driven to rotate, the T-shaped structure at one end of the inner rod 15 is matched with the straight sliding groove 141 in the sleeve 14, and at the moment, the sleeve 14 and the inner rod 15 can slide relatively.
The wave crest height of the solder is monitored in real time by utilizing the wave crest brazing wave crest real-time monitoring module, and the current magnitude of the electromagnetic coils in the corresponding electromagnetic groups 10 is controlled by the internal power modules of the supporting plate 3 and the sliding seat 7 according to the monitoring result, so that the upper and lower heights of the integrated circuit boards in the supporting plate 3 can be adjusted, the moving speed of the integrated circuit boards is changed under the condition that the conveying speed of the conveying track 1 is unchanged according to the wave crest instantaneous change of the solder, and the integrated circuit boards can be better contacted with the solder so as to improve the welding effect of the integrated circuit boards.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an automatic brazing device of integrated circuit board, includes backup pad (3), constant head tank (31) of sinking have been seted up on the surface of backup pad (3), constant head tank (31) and integrated circuit board looks adaptation, its characterized in that: mounting holes (32) are formed in four corners of the supporting plate (3), and a compression seat (4) is arranged in the mounting holes (32);
The lower surface of the pressing seat (4) is fixedly provided with a rotating shaft (41), the rotating shaft (41) is in threaded connection with the mounting hole (32), the interval between the pressing seat (4) and the supporting plate (3) is adjusted by rotating the pressing seat (4), a slotted hole is formed in one side, far away from the rotating shaft (41), of the lower surface of the pressing seat (4), and a pressing piece (42) is arranged in the slotted hole;
when the pressing seat (4) is rotated, the pressing piece (42) can approach to the integrated circuit board in the positioning groove (31), and when the pressing force of the pressing piece (42) on the integrated circuit board reaches the set range of qualified pressing force, the rotating shaft (41) of the pressing seat (4) is locked and kept fixed relative to the supporting plate (3);
the pressing piece (42) is arranged in the pressing seat (4) in an up-down sliding mode, a pressing spring (421) is arranged on the upper portion of the pressing piece (42), and a blocking block (422) is fixedly connected to the upper end of the pressing spring (421);
the rotating shaft (41) is internally provided with a rotating rod (43) in a rotating way, the surface of the rotating rod (43) is fixedly provided with a transmission gear, the inside of the rotating shaft (41) is provided with a limiting rod (44) in a sliding way, the surface of the limiting rod (44) is provided with a tooth surface meshed with the transmission gear, one end of the limiting rod (44) away from the transmission gear is a hook-shaped part, the inside of the supporting plate (3) is provided with a limiting gear ring (5), the limiting gear ring (5) is a unidirectional ratchet ring, and when the hook-shaped part of the limiting rod (44) extends out of the side surface of the rotating shaft (41), the hook-shaped part can be meshed with a ratchet wheel of the inner ring of the limiting gear ring (5);
The surface of the rotating rod (43) is fixedly provided with a first gear, the inside of the pressing seat (4) is slidably provided with a second toothed bar (6) meshed with the first gear, a return spring is arranged between the second toothed bar (6) and the inner wall of the pressing seat (4), one end, far away from the first gear, of the second toothed bar (6) is fixedly provided with a hemispherical sliding block (61), the sliding block (61) is positioned on an upward moving track of the blocking block (422), frictional resistance exists between the blocking block (422) and the inner wall of the slotted hole, and the top surface inside the slotted hole is positioned at the upper side edge of the sliding block (61);
the lower surface of the pressing piece (42) is spherically connected with a ball;
a limiting column (423) is arranged between the pressing piece (42) and the pressing spring (421), and continuous V-shaped clamping grooves are distributed on the side surface of the limiting column (423) in an up-down arrangement mode;
the surface fixed mounting of bull stick (43) has gear two, compress tightly the inside slidable mounting of seat (4) with gear two meshing rack bar one (45), rack bar one (45) keep away from gear two's one end fixed mounting has conical fixture block (451), the toper portion of fixture block (451) with V-arrangement draw-in groove looks adaptation.
2. The automatic soldering apparatus for integrated circuit boards according to claim 1, wherein: the limiting gear ring (5) is rotatably mounted in the supporting plate (3), the supporting plate (3) is located at the outer side of the limiting gear ring (5) and provided with an arc-shaped limiting groove, a stop block (51) is fixedly mounted on the outer side surface of the limiting gear ring (5), and the stop block (51) is located in the limiting groove.
3. The automatic soldering apparatus for integrated circuit boards according to claim 1, wherein: the upper surface of the pressing seat (4) is fixedly provided with a holding rod (46), a pressing rod (461) is arranged in the holding rod (46) in a sliding manner, and the pressing rod (461) can extend into the groove hole.
4. An integrated circuit board automatic soldering apparatus according to claim 3, wherein: the automatic feeding device is characterized by further comprising a conveying track (1) and a bottom plate (2), wherein the bottom plate (2) is positioned in the conveying track (1), the bottom plate (2) is of a loop-shaped structure, the supporting plate (3) is positioned in the bottom plate (2), a mounting groove (33) is formed in the surface, close to one side of the conveying track (1), of the supporting plate (3), a sliding seat (7) is horizontally and slidably arranged in the mounting groove (33), and a vertical groove is formed in the surface of the sliding seat (7);
The inner side surface of the bottom plate (2) corresponding to the mounting groove (33) is fixedly provided with a supporting rod (8), and one end, far away from the bottom plate (2), of the supporting rod (8) is vertically and slidably arranged in the vertical groove;
the side wall horizontal sliding of vertical groove installs locking lever (91), bracing piece (8) with the lockhole has been seted up to the lateral wall that vertical groove corresponds, the lockhole with locking lever (91) looks adaptation.
5. The automatic soldering apparatus for integrated circuit boards according to claim 4, wherein: the upper surface of the supporting plate (3) is fixedly provided with mounting seats (13) along two sides of the advancing direction of the bottom plate (2), the inside of each mounting seat (13) is rotatably provided with a sleeve (14), the inside of each sleeve (14) is provided with a linear chute (141) along the rod body direction, and the middle position of each linear chute (141) is provided with an annular groove (142);
an inner rod (15) is arranged in the sleeve (14), one end of the inner rod (15) positioned in the sleeve (14) is of a T-shaped structure, and the T-shaped structure of the inner rod (15) is matched with the linear sliding groove (141) and the annular groove (142);
the upper surface fixed mounting of bottom plate (2) has supporting seat (21), supporting seat (21) are located in the extension direction of interior pole (15), vertical guide slot has been seted up on the surface that supporting seat (21) are close to interior pole (15) one side, vertical guide slot extends to inside bottom plate (2), interior pole (15) are kept away from the one end of sleeve (14) is slidable mounting from top to bottom is in inside the vertical guide slot.
6. The automatic soldering apparatus for integrated circuit boards according to claim 5, wherein: springs are arranged between the two side surfaces of the sliding seat (7) and the mounting groove (33), and an electromagnetic group I (10) is arranged between the sliding seat (7) and the inner side wall of the mounting groove (33);
springs are arranged between the upper and lower side surfaces of the supporting rod (8) and the upper and lower surfaces of the inner wall of the sliding seat (7), and an electromagnetic group II (101) is arranged between the supporting rod (8) and the inner wall of the sliding seat (7);
the first electromagnetic group (10) consists of an electromagnetic coil and a magnetic block, the electromagnetic coil is arranged in the inner side wall of the mounting groove (33) or the inner wall of the sliding seat (7), the magnetic block is arranged on the outer side surface of the sliding seat (7) or the surface of the supporting rod (8), and the supporting plate (3) and the sliding seat (7) are internally provided with power supply modules for supplying current to the corresponding electromagnetic coil;
the soldering device is provided with a wave soldering wave crest real-time monitoring module for monitoring the wave crest height of solder in real time, and the wave soldering wave crest real-time monitoring module is connected with a power module inside the supporting plate (3) and the sliding seat (7) which enter a welding area through an Internet of things module network.
7. The automatic soldering apparatus for integrated circuit boards according to claim 6, wherein: a key groove is formed in the surface of a rotating shaft (41) on the lower surface of the pressing seat (4), a linkage gear (11) is rotatably arranged in the supporting plate (3), and the linkage gear (11) is in sliding connection with the rotating shaft (41) through a spline;
the inside of the supporting plate (3) is slidably provided with a rack (111) meshed with the linkage gear (11).
8. The automatic soldering apparatus for integrated circuit boards according to claim 7, wherein: a stop lever (71) is elastically and telescopically arranged on the surface of the sliding seat (7) corresponding to the inner side wall of the mounting groove (33), and a through hole matched with the stop lever (71) is formed in the inner side wall of the mounting groove (33);
the inside of the supporting plate (3) is horizontally and slidably provided with a T-shaped rod (12), the surface of the T-shaped rod (12) is fixedly provided with a pushing plate (121), the surface of the pushing plate (121) is fixedly provided with a jacking column (122), and the through hole is positioned in the moving direction of the jacking column (122);
two groups of racks (111) corresponding to one group of two pressing seats (4) which are distributed diagonally are provided with protruding blocks at one end far away from the linkage gear (11), and the T-shaped rod (12) is positioned in the moving direction of the protruding blocks;
Slide bar (9) are installed to inside upper and lower slidable of slide (7), the lower extreme of slide bar (9) can stretch out the lower surface of slide (7), the lower extreme of slide bar (9) is semi-annular curved surface, hole structure with the lower extreme looks adaptation of slide bar (9) is seted up to the bottom surface of mounting groove (33) inside, the surface of lock bar (91) is provided with the voussoir, the surface of slide bar (9) is provided with the kicking block, the voussoir is located in the direction of movement of kicking block.
9. The automatic soldering apparatus for integrated circuit boards according to claim 7, wherein: one end surface of the sleeve (14) positioned inside the mounting seat (13) is fixedly provided with a gear structure, one end, away from the linkage gear (11), of the two racks (111) corresponding to the other two pressing seats (4) which are distributed diagonally is provided with a straight tooth surface, and the straight tooth surface is meshed with the gear structure on the surface of the sleeve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311247186.6A CN116984695B (en) | 2023-09-26 | 2023-09-26 | Automatic brazing device for integrated circuit board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311247186.6A CN116984695B (en) | 2023-09-26 | 2023-09-26 | Automatic brazing device for integrated circuit board |
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| Publication Number | Publication Date |
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| CN116984695A CN116984695A (en) | 2023-11-03 |
| CN116984695B true CN116984695B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311247186.6A Active CN116984695B (en) | 2023-09-26 | 2023-09-26 | Automatic brazing device for integrated circuit board |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW368785B (en) * | 1995-11-15 | 1999-09-01 | Hitachi Via Mechanics Ltd | Fixture for printed circuit board |
| KR20080007745A (en) * | 2006-07-18 | 2008-01-23 | 페데랄-모굴 비스바덴 게엠베하 | Device for connecting at least two components, use of said device and receiving element |
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| JP2021082579A (en) * | 2019-11-14 | 2021-05-27 | 石雅娟 | Fixing and connecting device for power electronic lead and terminal and operation method |
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2023
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| TW368785B (en) * | 1995-11-15 | 1999-09-01 | Hitachi Via Mechanics Ltd | Fixture for printed circuit board |
| KR20080007745A (en) * | 2006-07-18 | 2008-01-23 | 페데랄-모굴 비스바덴 게엠베하 | Device for connecting at least two components, use of said device and receiving element |
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| DE202016104988U1 (en) * | 2015-09-14 | 2016-09-26 | Tabra s.r.o. | Adjustable child seat |
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| CN108466205A (en) * | 2018-05-28 | 2018-08-31 | 长兴睿鸿耐火材料有限公司 | A kind of power of expansion pressing device used for refractory material |
| JP2021082579A (en) * | 2019-11-14 | 2021-05-27 | 石雅娟 | Fixing and connecting device for power electronic lead and terminal and operation method |
| CN111966155A (en) * | 2020-08-27 | 2020-11-20 | 德州欧瑞电子通信设备制造有限公司 | Intelligent cabinet-based microenvironment monitoring method and system |
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