CN107010401B - PCB clamping and conveying mechanism - Google Patents
PCB clamping and conveying mechanism Download PDFInfo
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- CN107010401B CN107010401B CN201710245950.4A CN201710245950A CN107010401B CN 107010401 B CN107010401 B CN 107010401B CN 201710245950 A CN201710245950 A CN 201710245950A CN 107010401 B CN107010401 B CN 107010401B
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- clamping arm
- arm
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- supporting beam
- clamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/907—Devices for picking-up and depositing articles or materials with at least two picking-up heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/901—Devices for picking-up and depositing articles or materials provided with drive systems with rectilinear movements only
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to a PCB (printed circuit board) clamping and conveying mechanism, which comprises a left clamping arm, a right clamping arm, a left clamping arm supporting beam and a right clamping arm supporting beam which are arranged in pair and have the same structure, wherein the left clamping arm or the right clamping arm comprises a bottom plate and a clamping component; each clamping assembly is in sliding fit with the corresponding bottom plate, and the sliding direction of the clamping assembly is perpendicular to the sliding direction of the left clamping arm or the right clamping arm; so that the supporting component of the left clamping arm and the supporting component of the right clamping arm can slide towards the opposite inner sides of the left clamping arm supporting beam and the right clamping arm supporting beam on the bottom plate, and the opposite inner side ends of the clamping components are provided with transverse U-shaped openings.
Description
Technical Field
The invention relates to the technical field of PCB automatic production equipment, in particular to a PCB clamping and conveying mechanism and a working method thereof.
Background
With the rapid development of electronic technology, electronic products are more and more widely used, and the PCB is one of the important components of the electronic products. At present, in the manufacturing process of the PCB, according to different processes of each step, the PCB needs to be conveyed to another device by one device, the PCB to be processed is generally manually conveyed to a corresponding workbench one by one, the labor is wasted, the efficiency is low, meanwhile, the pollution of the PCB is very easily caused due to the fact that an operator touches the PCB by hands, the subsequent processes are not facilitated to be processed, the method is also a main reason that the full automation cannot be realized in the existing PCB processing process, and the automation process of the PCB production is seriously influenced.
Disclosure of Invention
The invention aims to provide a PCB clamping and conveying mechanism which is simple in structure and easy to operate and a working method thereof.
In order to solve the above technical problem, the PCB clamping and transferring mechanism provided by the present invention comprises: the clamping device comprises a left clamping arm, a right clamping arm, a left clamping arm supporting beam and a right clamping arm supporting beam which are arranged in pair and have the same structure, wherein the left clamping arm or the right clamping arm comprises a base plate and a clamping assembly; each clamping assembly is in sliding fit with the corresponding bottom plate, and the sliding direction of the clamping assembly is perpendicular to the sliding direction of the left clamping arm or the right clamping arm; so that the supporting component of left arm lock, the supporting component of right arm lock can slide on the bottom plate in opposite directions to the relative inboard of left arm lock supporting beam and right arm lock supporting beam, and the relative medial extremity of each centre gripping subassembly sets up horizontal U type opening for can press from both sides the PCB circuit board after left arm lock, right arm lock slide in opposite directions, drive the PCB circuit board when the bottom plate slides and slide along the extending direction of left arm lock supporting beam or right arm lock supporting beam, accomplish the conveying of PCB circuit board.
Furthermore, the left clamping arm or the right clamping arm further comprises a screw rod and a third motor, the clamping assembly comprises a first clamping arm longitudinal support, a clamping arm transverse support and a second clamping arm longitudinal support, two ends of the clamping arm transverse support are fixedly connected with opposite outer side ends of the first clamping arm longitudinal support and the second clamping arm longitudinal support respectively, and the transverse U-shaped opening is formed in opposite inner side ends of the first clamping arm longitudinal support and the second clamping arm longitudinal support; the up end both sides of bottom plate set up the guide rail, first arm lock indulge prop, the second arm lock indulge the lower extreme setting of propping with guide rail sliding fit's spout, the third motor is fixed to be set up on the bottom plate, the output shaft of third motor with the one end fixed connection of lead screw, the relative other end of lead screw with the middle part screw-thread fit of arm lock stull, so that when third motor drive lead screw was rotatory, can drive the centre gripping subassembly is in slide on the bottom plate.
Furthermore, the lower terminal surface protrusion of bottom plate sets up the guide block, set up on left arm lock supporting beam or the right arm lock supporting beam with the direction spout of guide block looks adaptation, so that the bottom plate can slide along left arm lock supporting beam or right arm lock supporting beam.
Further, PCB circuit board centre gripping transport mechanism is still including being used for driving left arm lock and right arm lock synchronous slip's hold-in range transport mechanism, and this hold-in range transport mechanism includes left transmission band and right transmission band that is driven by same pivot, the bottom plate of left arm lock or right arm lock is fixed continuous with corresponding left transmission band or right transmission band, so that when the pivot rotated, can drive left arm lock, right arm lock synchronous motion.
Furthermore, the PCB clamping and conveying mechanism also comprises a lifting mechanism for driving the left clamping arm supporting beam and the right clamping arm supporting beam to move up and down, the lifting mechanism comprises a turbine and a worm which are matched with each other, a first motor and at least two lifting brackets, and an output shaft of the first motor is in transmission fit with the turbine so that the first motor can drive the worm to rotate; the both ends of this worm are fixed respectively and are set up the connecting block, and each connecting block links to each other with the bottom stationary phase of lifting support respectively, lifting support's top both sides respectively with a left arm lock supporting beam and a right arm lock supporting beam are fixed and link to each other, so that the worm can drive the lifting support swing when rotating, and then drives a left arm lock supporting beam and a right arm lock supporting beam and go up and down in step to the position of the PCB circuit board of arranging left arm lock supporting beam and right arm lock supporting beam in between is arranged in the change.
A working method of a PCB clamping and conveying mechanism comprises the following steps: arranging a first left clamping arm and a first right clamping arm which can synchronously stretch, lift and translate at a feeding station of a PCB production line; a second left clamping arm and a second right clamping arm which can synchronously stretch, lift and translate are arranged at a printing station of a PCB production line; firstly, a first left clamping arm and a first right clamping arm extend out to clamp a PCB to be printed at a feeding station, and a second left clamping arm and a second right clamping arm extend out to clamp a printed PCB at a printing station; secondly, synchronously lifting and moving the first left clamping arm, the first right clamping arm, the second left clamping arm and the second right clamping arm forwards, so that the printed PCB reaches the upper part of the discharging station and the PCB to be printed reaches the upper part of the printing station, and synchronously contracting the first left clamping arm, the first right clamping arm, the second left clamping arm and the second right clamping arm, so that the printed PCB enters the discharging station and the PCB to be printed enters the printing station; synchronously descending and moving the first left clamping arm, the first right clamping arm, the second left clamping arm and the second right clamping arm backwards again, so that the first left clamping arm and the first right clamping arm are reset to the feeding station, and the second left clamping arm and the second right clamping arm are reset to the printing station; after the PCB to be printed is printed and arranged on the printing station, the first left clamping arm, the first right clamping arm, the second left clamping arm and the second right clamping arm repeatedly and synchronously extend, ascend and move forwards to finish the conveying of the PCB among the feeding station, the printing station and the discharging station.
The working method of the PCB clamping and conveying mechanism specifically comprises the following steps:
A. stopping the PCB to be printed at a feeding station and completing alignment, synchronously starting third motors of a first left clamping arm, a first right clamping arm, a second left clamping arm and a second right clamping arm, so that a first clamping arm longitudinal support and a second clamping arm longitudinal support of the first left clamping arm, the first right clamping arm, the second left clamping arm and the second right clamping arm extend inwards, the PCB to be printed is placed between two U-shaped openings to form clamping, and the PCB to be printed is clamped by means of extrusion of the first left clamping arm and the first right clamping arm; and the second left clamping arm and the second right clamping arm are arranged below the printing station in front of the feeding station.
B. Starting a first motor of the lifting mechanism to enable the worm connecting block to move to a high point to drive the left clamping arm supporting beam and the right clamping arm supporting beam to lift, and simultaneously starting a second motor of the synchronous belt conveying mechanism to enable the synchronous belt transmission mechanism to drive the first left clamping arm and the first right clamping arm to move forwards synchronously, so that the PCB to be printed moves from a loading station to a printing station, and at the moment, the second left clamping arm and the second right clamping arm move forwards synchronously to a discharging station in front of the printing station; the third motor of the first left arm lock of synchronous start, first right arm lock, the left arm lock of second and the right arm lock of second for third motor antiport drives first left arm lock, first right arm lock, the first arm lock of the left arm lock of second and the right arm lock of second is indulged to prop and outwards contract with the second arm lock, treat that the printed PCB circuit board breaks away from between two U type openings of first left arm lock and first right arm lock, reach the print position, treat printed PCB circuit board processing by the PCB circuit board lithography apparatus of peripheral hardware to the print position, treat that the printed PCB circuit board becomes printed PCB circuit board and place in on the print position after the printing is accomplished.
C. And starting the first motor of the lifting mechanism again to enable the first motor to continue to rotate, enabling the worm connecting block to move to a low point, driving the left clamping arm supporting beam and the right clamping arm supporting beam to descend, starting the second motor of the synchronous belt conveying mechanism simultaneously, enabling the second motor to rotate reversely, driving the first left clamping arm, the first right clamping arm, the second left clamping arm and the second right clamping arm to move backwards synchronously, and enabling the first left clamping arm and the first right clamping arm to reset to the feeding station and the second left clamping arm and the second right clamping arm to reset to the printing station.
D. Stop one again and treat printed PCB circuit board at the material loading station and accomplish the counterpoint, the third motor of synchronous start first left arm lock, first right arm lock, second left arm lock and second right arm lock for first arm lock of first left arm lock, first right arm lock, the first arm lock of second left arm lock and second right arm lock is indulged to prop and inwards stretch out with the second arm lock, make treating printed PCB circuit board of material loading station arrange in between two U type openings of first left arm lock and first right arm lock and form the centre gripping, arrange printed PCB circuit board of print station in between two U type openings of second left arm lock and second right arm lock and form the centre gripping.
E. Starting the first motor of the lifting mechanism again to enable the first motor to continue to rotate, enabling the worm connecting block to move to a high point again, driving the left clamping arm supporting beam and the right clamping arm supporting beam to lift, simultaneously starting the second motor of the synchronous belt conveying mechanism to enable the second motor to rotate in the forward direction, driving the first left clamping arm, the first right clamping arm, the second left clamping arm and the second right clamping arm to move forward synchronously, enabling the second left clamping arm and the second right clamping arm to move to a discharging station, clamping the printed circuit board to the discharging station, moving the first left clamping arm and the first right clamping arm to a printing station, and clamping the printed circuit board to be printed to the printing station; synchronously starting a third motor of the first left clamping arm, the first right clamping arm, the second left clamping arm and the second right clamping arm, so that the third motor reversely rotates to drive a first clamping arm longitudinal support and a second clamping arm longitudinal support of the first left clamping arm, the first right clamping arm, the second left clamping arm and the second right clamping arm to contract outwards, and the printed PCB circuit board is separated from between two U-shaped openings of the second left clamping arm and the second right clamping arm and reaches a discharging station; and when the printed PCB is separated from the space between the two U-shaped openings of the first left clamping arm and the first right clamping arm and reaches the printing station, the PCB to be printed at the printing station is processed by the peripheral PCB printing equipment, and the printed PCB becomes a printed PCB and is placed on the printing station after printing is finished.
F. And D, repeating the steps C to E to finish the automatic movement of conveying the PCB to be printed to the printing station from the feeding station and conveying the printed PCB to the discharging station from the printing station, so that the automatic movement is suitable for the continuous automatic production of the PCB.
The invention has the technical effects that: (1) Compared with the prior art, the clamping and conveying mechanism for the PCB realizes clamping of the PCB through the opposite sliding of the left clamping arm and the right clamping arm; (2) The transmission of the PCB is realized through the sliding fit of the bottom plates of the left clamping arm and the right clamping arm with the left clamping arm supporting beam and the right clamping arm supporting beam; (3) The left conveying belt and the right conveying belt are driven by the same rotating shaft to synchronously move, so that the left clamping arm and the right clamping arm are synchronously conveyed; (4) The worm wheel is matched with the worm, the lifting brackets at two ends of the worm are driven to swing, and then the left clamping arm supporting beam and the right clamping arm supporting beam are driven to synchronously lift; (5) The PCB clamping and conveying mechanism is simple in structure, easy to achieve, low in cost and suitable for large-area popularization.
Drawings
The invention is described in further detail below with reference to the drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the clamp arm of the present invention;
FIG. 3 is an enlarged view of a portion of the area A in FIG. 1;
fig. 4 is a partially enlarged view of the region B in fig. 1.
In the figure: the device comprises a PCB (printed circuit board) to be printed 11, a printed PCB 12, a left clamping arm supporting beam 21, a right clamping arm supporting beam 22, a lifting mechanism 3, a first motor 31, a worm 32, a connecting block 33, a vertical rod 34, a cross brace 35, a left longitudinal brace 36, a right longitudinal brace 37, a turbine 38, a synchronous belt conveying mechanism 4, a second motor 41, a left supporting plate 42, a right supporting plate 43, a rotating shaft 44, a driving wheel 45, a left conveying belt 46, a first guide wheel 47, a second guide wheel 48, a driven wheel 49, a first left clamping arm 5, a third motor 51, a bottom plate 52, a lead screw 53, a first clamping arm longitudinal brace 54, a second clamping arm longitudinal brace 55, a clamping arm cross brace 56, a U-shaped opening 57, a guide block 58, a mounting hole 59, a first right clamping arm 6, a second left clamping arm 7 and a second right clamping arm 8.
Detailed Description
Embodiment 1 as shown in fig. 1, the PCB clamping and transferring mechanism of this embodiment includes: the clamping device comprises a left clamping arm supporting beam 21 and a right clamping arm supporting beam 22 which are arranged in parallel, a first left clamping arm 5, a first right clamping arm 6, a second left clamping arm 7 and a second right clamping arm 8 which are used for clamping a PCB (printed circuit board), guide chutes are respectively arranged on the upper end surfaces of the left clamping arm supporting beam 21 and the right clamping arm supporting beam 22, the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 are identical in structure and are arranged in pairs, as shown in fig. 2, each clamping arm comprises a bottom plate 52, a clamping assembly, a lead screw 53 and a third motor 51, a guide block 58 which is in sliding fit with the guide chutes is arranged in a protruding manner on the lower end surface of each bottom plate 52, so that the first left clamping arm 5 and the second left clamping arm 7 can slide on the left clamping arm supporting beam 21, and the first right clamping arm 6 and the second right clamping arm 8 can slide on the right clamping arm supporting beam 22; each clamping assembly comprises a first clamping arm longitudinal support 54, a clamping arm transverse support 56 and a second clamping arm longitudinal support 55, two ends of the clamping arm transverse support 56 are fixedly connected with the opposite outer side ends of the first clamping arm longitudinal support 54 and the second clamping arm longitudinal support 55 respectively, and the opposite inner side ends of the first clamping arm longitudinal support 54 and the second clamping arm longitudinal support 55 are provided with a transverse U-shaped opening 57 matched with the thickness of a PCB to be clamped so as to clamp the PCB; guide rails are arranged on two sides of the upper end face of the base plate 52, sliding chutes in sliding fit with the guide rails are arranged at the lower ends of the first clamping arm longitudinal support 54 and the second clamping arm longitudinal support 55, the third motor 51 is fixedly arranged on the base plate 52, an output shaft of the third motor 51 is fixedly connected with one end of the lead screw 53, and the other end of the lead screw 53 is in threaded fit with the middle of the clamping arm cross support 56, so that when the third motor 51 drives the lead screw 53 to rotate, the clamping assembly can be driven to slide on the base plate 52, and the sliding direction of the clamping assembly is perpendicular to the sliding direction of the clamping arms.
The PCB clamping and conveying mechanism further comprises a synchronous belt conveying mechanism 4 for driving the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 to move, as shown in fig. 4, the synchronous belt conveying mechanism 4 comprises a second motor 41, a rotating shaft 44, a left conveying belt 46 and a right conveying belt (not shown in the figure), a left supporting plate 42 and a right supporting plate 43 are symmetrically arranged at the lower sides of the left clamping arm supporting beam 21 and the right clamping arm supporting beam 22, the top ends of the left supporting plate 42 and the right supporting plate 43 are respectively fixedly connected with the bottom ends of the left clamping arm supporting beam 21 and the right clamping arm supporting beam 22, the second motor 41 is fixedly arranged on the left supporting plate 42, a rotatable rotating shaft 44 is arranged between the left supporting plate 42 and the right supporting plate 43, and the output shaft of the second motor 41 is connected with the end of the rotating shaft 44 through a chain so as to drive the rotating shaft 44 to rotate; a group of rotatable guide wheels, namely a first guide wheel 47 and a second guide wheel 48, are arranged on the opposite inner sides of the left supporting plate 42, driven wheels 49 are respectively arranged at two ends of the left clamping arm supporting beam 21, the tangent at the bottom end of each driven wheel 49 is coincident with the tangents at the top ends of the first guide wheel 47 and the second guide wheel 48, a driving wheel 45 is fixedly arranged on the inner side of the left supporting plate 42 on the rotating shaft 44, the driving wheel 45, the driven wheels 49, the first guide wheel 47 and the second guide wheel 48 are arranged on the same plane, so that a conveying loop can be formed when the left conveying belt 46 is wound on the driving wheel 45, the driven wheels 49, the first guide wheel 47 and the second guide wheel 48, and mounting holes 59 are formed in the bottom plates 52 of the first left clamping arm 5 and the second left clamping arm 7, so that the first left clamping arm 5 and the second left clamping arm 7 can be fixedly connected with the left conveying belt 46 through bolts or rivets; the opposite inner sides of the right supporting plate 43 are also provided with a set of rotatable guide wheels (not shown in the figure), two ends of the right arm support beam 22 are also respectively provided with a driven wheel, the tangent line at the bottom end of the driven wheel coincides with the tangent lines at the top ends of the two guide wheels, the rotating shaft 44 is fixedly provided with a driving wheel at the inner side of the right supporting plate 43, the driving wheel, the driven wheel and the guide wheels are also arranged in the same plane, so that a right transmission belt is wound on the driving wheel, the driven wheel and the two guide wheels to form a transmission loop, the bottom plate 52 of the first right arm lock 6 and the second right arm lock 8 are also provided with mounting holes 59, so that the first right arm lock 6 and the second right arm lock 8 can be fixedly connected with the right transmission belt through bolts or rivets, and the second motor 41 can drive the first left arm lock 5, the first right arm lock 6, the second left arm lock 7 and the second right arm lock 8 to synchronously slide along the left arm support beam 21 or the right arm support beam 22.
The PCB clamping and conveying mechanism further comprises a lifting mechanism 3 for driving the left arm support beam 21 and the right arm support beam 22 to perform lifting movement, as shown in fig. 3, the lifting mechanism 3 comprises a worm wheel 38 and a worm 32 which are matched with each other, a first motor 31, and two lifting brackets with the same structure, wherein an output shaft of the first motor 31 is in transmission fit with the worm wheel 38, so that the first motor 31 can drive the worm 32 to rotate; the both ends of this worm 32 are fixed respectively and are set up connecting block 33, each connecting block 33 links to each other with a lifting support is fixed respectively, lifting support includes pole setting 34, stull 35, a left side is indulged and is propped 36, a right side is indulged and is propped 37, the bottom of pole setting 34 links to each other with connecting block 33 is fixed, the top of pole setting 34 links to each other with the middle part of stull 35 is fixed, the both ends of this stull 35 are indulged 36 with a left side respectively, the bottom fixed phase of indulging 37 in the right side links to each other, the top of indulging 36 in the left side links to each other with the end fixing of left arm lock supporting beam 21, the top of indulging 37 in the right side links to each other with the end fixing of right arm lock supporting beam 22, it rotates to make worm 32 rotate, and then drive lifting support and rotate and go up and down, make left arm lock supporting beam 21 and right arm lock supporting beam 22 go up and down in step, in order to change the position of arranging the PCB circuit board between left arm supporting beam 21 and right arm supporting beam 22.
Embodiment 2 the above-mentioned PCB clamping and conveying mechanism is mainly used for conveying among three stations of feeding, printing and discharging during PCB production, and in an initial state, the first left clamp arm and the first right clamp arm are disposed at the feeding station, and the second left clamp arm and the second right clamp arm are disposed below the printing station.
A working method of a PCB clamping and conveying mechanism comprises the following steps: a first left clamping arm 5 and a first right clamping arm 6 which can synchronously stretch, lift and translate are arranged at a feeding station of a PCB production line; a second left clamping arm 7 and a second right clamping arm 8 which can synchronously stretch, lift and translate are arranged at a printing station of a PCB production line; firstly, a first left clamping arm 5 and a first right clamping arm 6 extend out to clamp a PCB 11 to be printed at a feeding station, and a second left clamping arm 7 and a second right clamping arm 8 extend out to clamp a printed PCB 12 at a printing station; then synchronously lifting and moving the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 forwards, so that the printed PCB 12 reaches the upper part of the discharging station and the PCB 11 to be printed reaches the upper part of the printing station, and the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 synchronously contract, so that the printed PCB 12 enters the discharging station and the PCB 11 to be printed enters the printing station; synchronously descending and moving back the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 again, so that the first left clamping arm 5 and the first right clamping arm 6 are reset to the feeding station, and the second left clamping arm 7 and the second right clamping arm 8 are reset to the printing station; after the PCB 11 to be printed is arranged at the printing station and printed, the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 repeatedly and synchronously extend, ascend and move forwards so as to finish the conveying of the PCB among the feeding station, the printing station and the discharging station.
The specific working steps are as follows:
A. stopping the PCB 11 to be printed at the feeding station and completing alignment, synchronously starting the third motors 51 of the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8, driving the lead screw 53 to rotate, enabling the first clamping arm longitudinal support 54 and the second clamping arm longitudinal support 55 of the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 to be in sliding fit with the base plate 52, enabling the first clamping arm longitudinal support 54 and the second clamping arm longitudinal support 55 to move inwards, placing the PCB 11 to be printed between the two U-shaped openings 57 to form clamping, and clamping the PCB 11 to be printed by means of extrusion of the first left clamping arm 5 and the first right clamping arm 6; and the second left clamping arm 7 and the second right clamping arm 8 are arranged below the printing station in front of the feeding station.
B. Starting a first motor 31 of the lifting mechanism 3, driving a worm 32 to rotate, enabling a connecting block 33 to be located at a high point of the worm to rotate, jointly driving a left clamping arm supporting beam 21 and a right clamping arm supporting beam 22 to be lifted by an upright rod 34, a cross strut 35, a left longitudinal strut 36 and a right longitudinal strut 37, simultaneously starting a second motor 41 of the synchronous belt conveying mechanism 4, driving a rotating shaft 44 to drive a driving wheel 45 to rotate forward, enabling the synchronous belt conveying mechanism 4 to drive a first left clamping arm 5 and a first right clamping arm 6 to move forward synchronously, enabling a PCB 11 to be printed to move from a loading station to a printing station, and enabling a second left clamping arm 7 and a second right clamping arm 8 to move forward synchronously to a discharging station in front of the printing station; the third motor 51 of the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 is synchronously started, so that the third motor 51 reversely rotates to drive the screw 53 to reversely rotate, the first clamping arm 5, the first right clamping arm 6, the first clamping arm longitudinal support 54 and the second clamping arm longitudinal support 55 of the second left clamping arm 7 and the second right clamping arm 8 are in sliding fit with the base plate 52 to be outwards contracted, the printed PCB 11 is separated from between the two U-shaped openings 57 of the first left clamping arm 5 and the first right clamping arm 6 and reaches a printing station, the printed PCB to be printed at the printing station is processed by the peripheral PCB printing equipment, and the printed PCB 11 becomes the printed PCB 12 after printing is completed and is placed on the printing station.
C. The first motor 31 of the lifting mechanism 3 is restarted, so that the first motor 31 continues to rotate, the drive worm 32 continues to rotate, the connecting block 33 is located at a low point of the worm rotation, the vertical rod 34, the cross rod 35, the left longitudinal rod 36 and the right longitudinal rod 37 jointly drive the left clamping arm supporting beam 21 and the right clamping arm supporting beam 22 to descend, meanwhile, the second motor 41 of the synchronous belt conveying mechanism 4 is started, so that the second motor 41 reversely rotates, the drive rotating shaft 44 drives the driving wheel 45 to reversely rotate, the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 are driven to synchronously move backwards, and the first left clamping arm 5 and the first right clamping arm 6 are reset to the feeding station, and the second left clamping arm 7 and the second right clamping arm 8 are reset to the printing station.
D. And stopping one PCB (printed circuit board) 11 to be printed at the feeding station again and completing alignment, synchronously starting the third motors 51 of the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8, driving the screw rods 53 to rotate in the forward direction, enabling the first clamping arm longitudinal support 54 and the second clamping arm longitudinal support 55 of the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 to be in sliding fit with the base plate 52, enabling the first clamping arm longitudinal support 54 and the second clamping arm longitudinal support 55 to move inwards, placing the PCB 11 to be printed at the feeding station between the two U-shaped openings 57 of the first left clamping arm 5 and the first right clamping arm 6 to form clamping, and placing the printed PCB 12 at the printing station between the two U-shaped openings 57 of the second left clamping arm 7 and the second right clamping arm 8 to form clamping.
E. The first motor 31 of the lifting mechanism 3 is started again, so that the first motor 31 continues to rotate, the worm 32 is driven to continue to rotate, the connecting block 33 is located at a high point of the rotation of the worm 32, the upright rod 34, the cross rod 35, the left longitudinal support 36 and the right longitudinal support 37 jointly drive the left clamping arm supporting beam 21 and the right clamping arm supporting beam 22 to lift, meanwhile, the second motor 41 of the synchronous belt conveying mechanism 4 is started, so that the second motor 41 rotates forwards, the driving shaft 44 drives the driving wheel 45 to rotate forwards, the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 are driven to move forwards synchronously, the second left clamping arm 7 and the second right clamping arm 8 are driven to move to the discharging station, the printed circuit board 12 is clamped to the discharging station, the first left clamping arm 5 and the first right clamping arm 6 are moved to the printing station, and the circuit board 11 to be printed is clamped to the printing station; a third motor of the first left clamping arm, the first right clamping arm, the second left clamping arm and the second right clamping arm is synchronously started to drive the screw 53 to reversely rotate, so that a first clamping arm longitudinal support 54 and a second clamping arm longitudinal support 55 of the first left clamping arm 5, the first right clamping arm 6, the second left clamping arm 7 and the second right clamping arm 8 are in sliding fit with the base plate 52, the first clamping arm longitudinal support 54 and the second clamping arm longitudinal support 55 are enabled to move outwards, and the brushed PCB 12 is separated from a position between two U-shaped openings 57 of the second left clamping arm 7 and the second right clamping arm 8 and reaches a discharging station; and after the printed PCB 11 is separated from the space between the two U-shaped openings 57 of the first left clamping arm 5 and the first right clamping arm 6 and reaches the printing station, the PCB to be printed at the printing station is processed by the peripheral PCB printing equipment, and after the printing is finished, the printed PCB 11 becomes the printed PCB 12 and is placed on the printing station.
F. And D, repeating the steps C to E to finish the automatic movement of conveying the PCB 11 to be printed from the feeding station to the printing station and conveying the printed PCB 12 from the printing station to the discharging station, and is suitable for the continuous automatic production of the PCB.
The design of the U-shaped opening enables each clamping arm to only clamp the technical edge of the PCB, is particularly suitable for the production of double-sided printed circuit boards, and has a large adjustment range for the board width of the PCB so as to adapt to the production of PCB with different specifications.
It should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And such obvious variations or modifications which fall within the spirit of the invention are intended to be covered by the scope of the present invention.
Claims (3)
1. The utility model provides a PCB circuit board centre gripping transport mechanism which characterized in that includes: the clamping device comprises a left clamping arm, a right clamping arm, a left clamping arm supporting beam and a right clamping arm supporting beam which are arranged in pair and have the same structure, wherein the left clamping arm or the right clamping arm comprises a base plate and a clamping assembly; each clamping assembly is in sliding fit with the corresponding bottom plate, and the sliding direction of the clamping assembly is perpendicular to the sliding direction of the left clamping arm or the right clamping arm; so that the supporting components of the left clamping arm and the right clamping arm can slide towards the opposite inner sides of the left clamping arm supporting beam and the right clamping arm supporting beam on the bottom plate, and the opposite inner side ends of the clamping components are provided with transverse U-shaped openings;
the PCB circuit board clamping and conveying mechanism also comprises a synchronous belt conveying mechanism for driving the left clamping arm and the right clamping arm to synchronously slide, the synchronous belt conveying mechanism comprises a left conveying belt and a right conveying belt which are driven by the same rotating shaft, and a bottom plate of the left clamping arm or the right clamping arm is fixedly connected with the corresponding left conveying belt or the corresponding right conveying belt;
the PCB circuit board clamping and conveying mechanism further comprises a lifting mechanism for driving the left clamping arm supporting beam and the right clamping arm supporting beam to move up and down, the lifting mechanism comprises a worm wheel and a worm which are matched with each other, a first motor and at least two lifting brackets, and an output shaft of the first motor is in transmission fit with the worm wheel so that the first motor can drive the worm to rotate; the two ends of the worm are respectively and fixedly provided with a connecting block, each connecting block is respectively and fixedly connected with the bottom end of the lifting support, and the two sides of the top end of the lifting support are respectively and fixedly connected with the left clamping arm supporting beam and the right clamping arm supporting beam;
the elevating support includes the pole setting, the stull, the left side is indulged and is propped, the right side is indulged, the bottom of pole setting links to each other with the connecting block is fixed, the top of pole setting links to each other with the middle part of stull is fixed, the both ends of this stull are indulged respectively with the left side and are propped, the bottom end that the right side was indulged and is propped is fixed to be linked to each other, the top that the left side was indulged and the end fixing of left arm lock supporting beam link to each other, the top that the right side was indulged and is propped links to each other with the end fixing of right arm lock supporting beam for the worm drives the connecting block when rotating and rotates, and then drives the elevating support and rotate and go up and down.
2. The PCB clamping and conveying mechanism of claim 1, wherein the left or right clamping arm further comprises a lead screw and a third motor, the clamping assembly comprises a first clamping arm longitudinal support, a clamping arm cross support and a second clamping arm longitudinal support, two ends of the clamping arm cross support are fixedly connected with opposite outer side ends of the first clamping arm longitudinal support and the second clamping arm longitudinal support respectively, and the transverse U-shaped opening is formed in opposite inner side ends of the first clamping arm longitudinal support and the second clamping arm longitudinal support; the utility model discloses a lead screw, including bottom plate, first arm lock, second arm lock, third motor, lead screw, the up end both sides of bottom plate set up the guide rail, first arm lock indulge prop, second arm lock indulge prop the lower extreme set up with guide rail sliding fit's spout, the third motor is fixed to be set up on the bottom plate, the output shaft of third motor with the one end fixed connection of lead screw, the relative other end of lead screw with the middle part screw-thread fit of arm lock stull.
3. The PCB clamping and conveying mechanism of claim 2, wherein a guide block is protruded from the lower end surface of the bottom plate, and a guide chute matched with the guide block is arranged on the left clamping arm support beam or the right clamping arm support beam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710245950.4A CN107010401B (en) | 2017-04-14 | 2017-04-14 | PCB clamping and conveying mechanism |
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| CN201710245950.4A CN107010401B (en) | 2017-04-14 | 2017-04-14 | PCB clamping and conveying mechanism |
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| CN107010401A CN107010401A (en) | 2017-08-04 |
| CN107010401B true CN107010401B (en) | 2022-10-11 |
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