CN117983972B - Online laser marking, feeding and positioning device for PCB (printed circuit board) - Google Patents
Online laser marking, feeding and positioning device for PCB (printed circuit board) Download PDFInfo
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- CN117983972B CN117983972B CN202410404763.6A CN202410404763A CN117983972B CN 117983972 B CN117983972 B CN 117983972B CN 202410404763 A CN202410404763 A CN 202410404763A CN 117983972 B CN117983972 B CN 117983972B
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- 238000010330 laser marking Methods 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 230000003139 buffering effect Effects 0.000 claims description 32
- 210000000078 claw Anatomy 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 17
- 238000013016 damping Methods 0.000 claims description 16
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- FPWNLURCHDRMHC-UHFFFAOYSA-N 4-chlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1 FPWNLURCHDRMHC-UHFFFAOYSA-N 0.000 description 34
- 230000008569 process Effects 0.000 description 17
- 230000033001 locomotion Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 9
- 238000002372 labelling Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000001960 triggered effect Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- NMWSKOLWZZWHPL-UHFFFAOYSA-N 3-chlorobiphenyl Chemical group ClC1=CC=CC(C=2C=CC=CC=2)=C1 NMWSKOLWZZWHPL-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 101001082832 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) Pyruvate carboxylase 2 Proteins 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyoxymethylene Polymers 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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Abstract
The feeding positioning device for the online laser marking of the PCB comprises a laser marking machine and a feeding positioning device, wherein the feeding positioning device is fixedly arranged on a laser marking machine workbench and is connected with a PCB production line to realize online automatic laser marking of the PCB; the feeding positioning device comprises a bottom plate, a feeding positioning guide rail combination and a feeding driving combination, and the feeding positioning guide rail combination and the feeding driving combination are fixedly arranged on the bottom plate; the two feeding positioning guide rail combinations are symmetrically arranged, and the PCB moves and is positioned between the two feeding positioning guide rail combinations; the feeding driving combination is arranged between the two feeding driving combinations and is used for driving the PCB to move; the PCB online laser marking feeding positioning device does not need a sensing element and an independent control system, has the advantages of simple system, reliable operation, low cost and convenient maintenance and adjustment, saves a great deal of manpower, reduces the product customer withdrawal rate caused by electrostatic damage of chips, and improves the economic benefit and the substitute reputation of enterprises.
Description
Technical Field
The invention relates to the technical field of PCB welding, automatic testing and automatic marking (or labeling) production lines, in particular to an online laser marking feeding positioning device for a PCB.
Background
The existing PCB welding production generally adopts surface mounting and reflow soldering automatic production lines, and is matched with automatic plug-in components and wave soldering automatic production lines, and the PCB test and marking (or labeling) after welding still adopts a manual assembly line operation mode; the automatic equipment is adopted in the PCB welding production, the production efficiency is high, the PCB needs to be manually taken and placed in the PCB testing and marking (or labeling) process, and the PCB needs to be positioned, so that the production efficiency is low, the production beats between the PCB and the PCB are uncoordinated, and a large amount of labor is occupied in the PCB testing and marking (or labeling) process, so that the enterprise benefit is influenced; in addition, during the process of testing and marking (or labeling) the PCB, the manual picking and placing of the PCB can cause electrostatic damage to the welded chips on the PCB, and although various anti-electrostatic measures are adopted on the assembly line, the electrostatic damage to the chips still cannot be completely avoided; the chip part damaged by static electricity can be screened out in the aging of the subsequent products, but still part of the chip part can flow to the market, and damage occurs in the initial use period of the subsequent users, so that the customer withdrawal rate of the products can not be controlled fundamentally, and the reputation of enterprises is influenced.
In order to solve the problems, automatic equipment is used for replacing manual PCB test and marking (or labeling) is a better solution; in the automatic equipment for testing and marking (or labeling) of the PCB, the transmission and positioning device of the PCB usually needs to be entrusted to the design and manufacture of a professional non-standard manufacturer (the PCB testing equipment is designed and manufactured by the manufacturer, the marking and labeling equipment or purchased or directly integrated with the PCB transmission and positioning device), and the scheme of the automatic equipment is often provided with a plurality of sensing and detecting elements, executing parts and control systems, so that the cost of the scheme is high, the system is complex, once the fault occurs in the operation process, the time for removing the fault is often longer, and the economic benefit of enterprises is also influenced.
Disclosure of Invention
In order to overcome the defects in the background technology, the invention discloses an online laser marking feeding positioning device for a PCB, which comprises a laser marking machine and a feeding positioning device, wherein the feeding positioning device is fixedly arranged on a laser marking machine workbench and is connected with a PCB production line to realize online automatic laser marking of the PCB; the feeding positioning device comprises a bottom plate, a feeding positioning guide rail combination and a feeding driving combination, and the feeding positioning guide rail combination and the feeding driving combination are fixedly arranged on the bottom plate; the two feeding positioning guide rail combinations are symmetrically arranged, and the PCB moves and is positioned between the two feeding positioning guide rail combinations; the feeding driving combination is arranged between the two feeding driving combinations and used for driving the PCB to move.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: the feeding positioning device for the online laser marking of the PCB comprises a laser marking machine and a feeding positioning device, wherein the feeding positioning device is fixedly arranged on a laser marking machine workbench and is connected with a PCB production line to realize online automatic laser marking of the PCB; the feeding positioning device comprises a bottom plate, a feeding positioning guide rail combination and a feeding driving combination, and the feeding positioning guide rail combination and the feeding driving combination are fixedly arranged on the bottom plate; the two feeding positioning guide rail combinations are symmetrically arranged, the PCB moves along the two feeding positioning guide rail combinations, a plurality of PCB round head positioning pins are arranged in the feeding positioning guide rail combinations, when the PCB moves in the feeding positioning guide rail combinations, the positioning ball heads of the PCB round head positioning pins are pressed on the edges of the PCB, friction is generated between the PCB and the positioning ball heads in the moving process of the PCB, and after the PCB moves in place, the PCB is automatically positioned by utilizing the friction between the PCB and the positioning ball heads, so that a movable positioning mechanism of the PCB is not required to be arranged any more, and an execution part of the feeding positioning device is simplified; the feeding driving combination is arranged between the two feeding driving combinations and is used for driving the PCB to move; in the whole feeding and positioning device, only a servo motor driving execution part is arranged in the feeding and driving combination, so that the whole feeding and positioning device is extremely simple to drive, and a control system is not required to be independently arranged correspondingly, so that the cost of the scheme of the feeding and positioning device is extremely low, the feeding and positioning device is easy to reform and integrate with the existing production line, and the cost investment of automatic reformation of enterprises is reduced;
the feeding driving combination is provided with a buffering limit time delay module which is used for buffering when driving the PCB to be in place and delaying and triggering the PCB in place signal, and the PCB in place signal (the signal replaces the original pedal switch signal of the laser marking machine) is transmitted to a control system at the front end of the laser marking machine and the feeding positioning device after being delayed and triggered and is used for controlling the laser marking machine to start marking and the automatic line at the front end of the feeding positioning device to transmit the PCB to the feeding positioning device.
Further, the feeding positioning guide rail assembly comprises a feeding fixed guide rail, a feeding adjusting guide rail and a feeding guide rail fixing plate, wherein the feeding guide rail fixing plate is fixedly arranged at the upper part of the feeding fixed guide rail through bolts, the feeding adjusting guide rail is arranged between the feeding fixed guide rail and the feeding guide rail fixing plate, and is connected with the feeding guide rail fixing plate through a feeding adjusting guide rail guide post and a feeding adjusting guide rail adjusting stud, a tightening double nut is arranged on the feeding adjusting guide rail adjusting stud, a PCB guide groove is formed between the feeding fixed guide rail and the feeding adjusting guide rail, and when the PCB moves in the two feeding positioning guide rail assemblies, the PCB is clamped in the PCB guide groove; when the thickness of the PCB is changed, the height of the PCB guide groove is adjusted by adjusting the backup nut on the feeding adjusting guide rail adjusting stud so as to adapt to different thicknesses of the PCB.
Further, a feeding adjusting guide rail spring is arranged between the feeding adjusting guide rail and the feeding guide rail fixing plate, and the spring is used for ensuring that the height of the PCB guide groove is kept unchanged in the working process; in addition, when the height of the PCB guide groove is adjusted by the spring, the feeding adjusting guide rail is automatically adjusted downwards by loosening the spare nut; when the feeding adjusting guide rail is adjusted upwards, the nut is screwed down, and the feeding adjusting guide rail spring is compressed to enable the feeding adjusting guide rail to be adjusted upwards.
Further, a plurality of PCB round head positioning pins are fixedly arranged on the feeding adjustment guide rail, the PCB round head positioning pins are commercial finished products, one end of each PCB round head positioning pin is elastically and movably provided with a positioning ball head, each positioning ball head protrudes into each PCB guide groove, when the edges of the PCB are clamped in the PCB guide grooves, the positioning ball heads are contacted with the edges of the PCB and pressed on the upper parts of the edges of the PCB (the edges of the PCB are not contacted with the feeding adjustment guide rail in practice), friction is generated between the PCB and the positioning ball heads in the moving process of the PCB, and after the PCB moves in place, the friction between the PCB and the positioning ball heads is utilized for automatic positioning, so that a movable positioning mechanism of the PCB is not required to be independently arranged any more, and an executing part of the feeding positioning device is simplified; in order to prevent the metal positioning ball from rubbing and scraping green oil on the PCB, a flat head positioning ball can be adopted, a positioning ball made of plastic (polyoxymethylene or nylon) is fixed by utilizing an inner threaded hole of the flat head positioning ball, and friction between the positioning ball and the PCB is reduced.
Further, a feeding positioning adjustment guide rail is fixedly arranged on the bottom plate, and a feeding positioning adjustment sliding seat is arranged on the feeding positioning adjustment guide rail; the feeding fixed guide rail is fixedly arranged on the feeding positioning adjustment slide seat through a feeding positioning guide rail combined bracket; when the width of the PCB is changed, the distance between the two feeding positioning guide rail combinations is adjusted by utilizing the movement of the feeding positioning adjustment sliding seat on the feeding positioning adjustment guide rail so as to adapt to the PCB with different widths; when the distance between the two feeding positioning guide rail combinations is adjusted, the position of the feeding positioning adjustment sliding seat on the feeding positioning adjustment guide rail is locked.
Further, the feeding driving combination comprises a feeding driving guide rail, a feeding driving sliding block combination and a feeding driving mechanism; the two feeding driving guide rails are symmetrically arranged and fixedly arranged on the bottom plate through the feeding driving combined support; the feeding driving slide block combination is movably arranged between the two feeding driving guide rails, the feeding driving mechanism drives the feeding driving slide block combination to reciprocate along the feeding driving guide rails, and the feeding driving slide block combination drives the PCB to move in one direction on the two feeding positioning guide rail combinations.
Further, the feeding driving slide block assembly comprises a feeding driving slide block, a slide block connecting rod and a pushing claw; the two feeding driving sliding blocks are fixedly connected through the sliding block connecting rod, reverse threads are arranged at the two ends of the sliding block connecting rod, threaded holes are formed in the ends of the corresponding feeding driving sliding blocks, and when the length of the PCB changes, the distance between the two feeding driving sliding blocks can be adjusted by rotating the sliding block connecting rod so as to adapt to the PCB with different lengths; a through groove is formed in the middle of the feeding driving sliding block, a limit stop is arranged in the through groove, the pushing claw is hinged in the through groove of the feeding driving sliding block, when the pushing claw rotates around the hinge shaft, the limit stop in the through groove limits the rotation angle of the pushing claw, the pushing claw actually has a lifting state and a withdrawing state, and when the pushing claw is in the lifting state, the PCB can be pushed to move in one direction between two feeding positioning guide rail combinations; damping oil is smeared between the contact surfaces of the feeding driving sliding block and the feeding driving guide rail, so that movement resistance is arranged between the contact surfaces of the feeding driving sliding block and the feeding driving guide rail.
Further, the feeding driving mechanism comprises a screw rod, a screw rod nut, a buffering limit delay module, a driving rod and a driving block; the screw rod is rotatably arranged on the bottom plate through brackets at two ends, one end of the screw rod is connected with a servo motor through a coupler, the servo motor works in a torque feedback working mode, and when the working torque of the servo motor is larger than a set value, the rotation is automatically stopped; the screw nut is arranged on the screw, the driving rod is fixedly connected with the screw nut, and the driving block is fixedly arranged at two ends of the driving rod; the driving block and the pushing claw are respectively provided with a chute, and hinged bolts are arranged in the chute of the driving block and the chute of the pushing claw to realize hinged connection of the driving block and the pushing claw; when the driving block drives the pushing claw, the pushing claw is firstly driven to rotate around the hinge shaft, and when the pushing claw rotates to a working state and a retraction state, the pushing claw drives the feeding driving sliding block to move along the feeding driving guide rail; the buffer limiting delay modules are arranged at two ends of the screw rod and fixedly connected with the bottom plate, when the screw rod is driven by the servo motor to rotate, the screw rod nut moves linearly along the screw rod, when the screw rod nut collides with the buffer limiting delay modules, the output torque of the servo motor is increased, and when the output torque of the servo motor is increased to a set torque, the servo motor stops rotating, so that the positioning of the driving block is realized; when the position of the buffering limit time delay module on the bottom plate is adjusted, the positioning position of the driving block can be realized, so that the positioning position of the PCB in the feeding positioning guide rail combination is realized.
Further, the buffer limit time-delay module comprises a buffer limit seat, a buffer shaft, a signal time-delay trigger shaft, an isolating ring, a buffer spring and a time-delay spring; the buffer limiting seat is provided with a through hole, and the buffer shaft, the isolating ring and the signal delay trigger shaft are sequentially arranged in the through hole; the isolating ring is fixedly connected with the through hole, and the buffer shaft and the signal delay trigger shaft slide along the through hole; the buffer spring is arranged between the buffer shaft and the isolation ring; the delay spring is arranged between the isolating ring and the signal delay trigger shaft, and two ends of the delay spring are respectively connected with the buffer shaft and the signal delay trigger shaft; damping oil is smeared in the through hole of the buffering limit seat and the inner hole of the isolating ring; when the screw nut moves along the screw and contacts with the buffer shaft, the buffer shaft plays a role of gradually increasing resistance to the screw nut due to the action of gradually compressing damping oil and the buffer spring, so that the screw nut is prevented from rigidly impacting the buffer limit delay module to play a role of buffering, and when the screw nut is completely contacted with the buffer limit delay module (at the moment, the buffer shaft is completely pressed into the buffer limit seat), the screw nut stops moving, and the positioning of the PCB is realized; in the synchronous motion process of the buffer shaft pushed by the screw nut, the buffer shaft compresses a delay spring, the delay spring pushes a signal delay trigger shaft to move, the motion speed of the signal delay trigger shaft is smaller than that of the buffer shaft due to the action of damping oil, when the screw nut is completely contacted with the buffer limit delay module, the signal delay trigger shaft continues to move under the pushing of the delay spring after the buffer shaft is completely pressed into the buffer limit seat, and the signal delay trigger shaft triggers the micro switch, so that the trigger of a signal when the screw nut moves in place is delayed; the action of delaying the in-place signal of the screw nut is triggered by delay, and the supplementary explanation is as follows: assuming that the feeding driving mechanism is not provided with a buffering limit delay module, but is provided with a limit block and a micro switch for limiting the movement position of the screw nut, the following situations may occur: 1. before the lead screw nut is completely contacted with the limiting block, the micro switch is triggered by the lead screw nut, and when the situation occurs, the laser marking machine starts marking operation before the PCB is completely positioned, so that the distortion of a laser marking pattern can be caused; 2. the situation that the lead screw nut is fully contacted with the limiting block and the trigger of the micro switch is synchronous is ideal, but the actual adjustment is extremely difficult, and the situation of the micro switch is changed in the continuous working process of the PCB online laser marking and feeding positioning device, so that the lead screw nut is fully contacted with the limiting block frequently, but the micro switch is not triggered, and the PCB online laser marking and feeding positioning device cannot work normally; 3. the lead screw nut is in full contact with the limiting block, but the micro switch is not triggered due to insufficient action stroke, and the PCB online laser marking, feeding and positioning device cannot work normally; based on the description of the above assumed situation, it can be seen that if the on-line laser marking feeding positioning device for the PCB board is not provided with the buffering limit delay module, in practice, the on-line laser marking feeding positioning device for the PCB board is difficult to realize normal operation.
Further, a micro switch is fixedly arranged in the buffering limit time delay module, the micro switch corresponds to the signal time delay trigger shaft, and the time delay trigger block triggers the micro switch and is used for detecting a lead screw nut in-place signal, the signal is transmitted to a control system transmitted to the front ends of the laser marking machine and the feeding positioning device and used for controlling the laser marking machine to start marking operation, and an automatic line at the front end of the feeding positioning device transmits a PCB (printed Circuit Board) to the feeding positioning device.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the invention discloses an online laser marking feeding positioning device for a PCB, which comprises a laser marking machine and a feeding positioning device, wherein the feeding positioning device is fixedly arranged on a laser marking machine workbench and is connected with a PCB production line to realize online automatic marking of the PCB; the feeding positioning device comprises a bottom plate, a feeding positioning guide rail combination and a feeding driving combination, and the feeding positioning guide rail combination and the feeding driving combination are fixedly arranged on the bottom plate; the two feeding positioning guide rail combinations are symmetrically arranged, and the PCB moves and is positioned between the two feeding positioning guide rail combinations; the feeding driving combination is arranged between the two feeding driving combinations and is used for driving the PCB to move; the PCB online laser marking feeding positioning device does not need a sensing detection element and an independent control system, has the advantages of simple system, reliable operation, low cost and convenient maintenance and adjustment, is easy to automatically reform the existing production line, saves a large amount of manpower, reduces the product customer withdrawal rate caused by electrostatic damage of chips, and improves the economic benefit and the substitute reputation of enterprises.
Drawings
Fig. 1 is an appearance schematic diagram of a working state of an on-line laser marking, feeding and positioning device for a PCB;
fig. 2 is an appearance schematic diagram of an online laser marking feeding and positioning device for a PCB board;
FIG. 3 is a schematic view of the assembly of the feed positioning rail;
FIG. 4 is a schematic diagram of an exploded view of a feed positioning rail assembly;
FIG. 5 is a schematic cross-sectional view of a feed positioning rail assembly turn;
FIG. 6 is a schematic view of the feed drive assembly;
FIG. 7 is a schematic cross-sectional view of a connection structure of a feed drive slider and a pusher dog;
FIG. 8 is a schematic view of the feed drive slider assembly;
FIG. 9 is a schematic view of the appearance of the pusher dog;
FIG. 10 is a schematic view of the feed drive mechanism;
FIG. 11 is a schematic cross-sectional view of a buffer stop delay module;
FIG. 12 is a schematic diagram of the sequence of assembly of the buffer shaft, buffer spring, spacer ring, delay spring, and signal delay trigger shaft;
FIG. 13 is a schematic view of the initial state of the feed drive assembly;
FIG. 14 is a schematic diagram of a combined pushing state of the feeding drive;
FIG. 15 is a schematic diagram of a feed drive combination pushing in position;
fig. 16 is a schematic diagram of a feed drive combination reset state.
In the figure: 1. a laser marking machine; 2. a feeding positioning device; 2.1, a bottom plate; 2.2, feeding and positioning guide rail combination; 2.2.1, feeding fixed guide rails; 2.2.1.1, feeding fixed guide rail guide surface; 2.2.1.2, feeding fixed guide rail side surfaces; 2.2.2, feeding and adjusting guide rails; 2.2.2.1, feeding and adjusting guide rail guide posts; 2.2.2.2, feeding adjusting guide rail adjusting stud; 2.2.2.3, a PCB round head positioning needle; 2.2.2.4, feeding and adjusting a guide rail spring; 2.2.2.5, feeding and adjusting guide rail guide surfaces; 2.2.3, a feeding guide rail fixing plate; 2.2.4, PCB guide slots; 2.3, feeding driving combination; 2.3.1, feeding driving guide rails; 2.3.2, feeding driving slide block combination; 2.3.2.1, feeding driving sliding blocks; 2.3.2.2, slider links; 2.3.2.3, pushing claws; 2.3.2.3.1, pawl hinge holes; 2.3.2.3.2, pawl chute; 2.3.3, a feeding driving mechanism; 2.3.3.1, lead screw; 2.3.3.2; a lead screw nut; 2.3.3.3, buffering limit time delay module; 2.3.3.3.1, a buffer limit seat; 2.3.3.3.2, a buffer shaft; 2.3.3.3.3, signal delay triggering shaft; 2.3.3.3.4, isolating rings; 2.3.3.3.5, a buffer spring; 2.3.3.3.6, a time delay spring; 2.3.3.3.7, cover plate; 2.3.3.3.8, a microswitch; 2.3.3.4, drive rod; 2.3.3.5, a drive block; 2.3.3.6, a coupling; 2.3.3.7, a servo motor; 2.3.3.8, a screw rod seat; 2.3.3.9, a motor base; 2.4, feeding and driving the combined bracket; 2.5, a feeding positioning guide rail combined bracket; 2.6, feeding, positioning and adjusting a sliding seat; 2.7, feeding, positioning and adjusting the guide rail; 3. and a PCB board.
Detailed Description
The invention will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the invention.
On-line laser marking feeding and positioning device for PCB (printed circuit board), see figure 1 of the specification: the automatic marking device comprises a laser marking machine 1 and a feeding and positioning device 2, wherein the feeding and positioning device 2 is fixedly arranged on a workbench of the laser marking machine 1 and is connected with a PCB production line to realize online automatic marking of the PCB; see fig. 2 of the specification: the feeding positioning device 2 comprises a bottom plate 2.1, a feeding positioning guide rail combination 2.2 and a feeding driving combination 2.3, wherein the feeding positioning guide rail combination 2.2 and the feeding driving combination 2.3 are fixedly arranged on the bottom plate 2.1; two feeding positioning guide rail combinations 2.2 are symmetrically arranged, and the PCB 3 moves and is positioned between the two feeding positioning guide rail combinations 2.2; the feeding driving combination 2.3 is arranged between the two feeding driving combinations 2.3 and is used for driving the PCB 3 to move and position between the two feeding positioning guide rail combinations 2.2;
See fig. 3,4 of the description: the feeding positioning guide rail combination 2.2 comprises a feeding fixed guide rail 2.2.1, a feeding adjusting guide rail 2.2.2 and a feeding guide rail fixed plate 2.2.3, wherein the feeding guide rail fixed plate 2.2.3 is fixedly arranged at the upper part of the feeding fixed guide rail 2.2.1 through bolts; the feeding adjustment guide rail 2.2.2 is fixedly provided with a feeding adjustment guide rail 2.2.1 and a feeding adjustment guide rail adjustment stud 2.2.2.2, the outer circumference of the feeding adjustment guide rail 2.2.2.1 is provided with a feeding adjustment guide rail spring 2.2.2.4, the feeding guide rail fixing plate 2.2.3 is provided with a through hole corresponding to the feeding adjustment guide rail 2.2.1 and the feeding adjustment guide rail adjustment stud 2.2.2.2, and the feeding adjustment guide rail 2.2.2 is arranged between the feeding fixing guide rail 2.2.1 and the feeding guide rail fixing plate 2.2.3 and is movably connected with the corresponding through hole on the feeding guide rail fixing plate 2.2.3 through the feeding adjustment guide rail 2.2.2.1 and the feeding adjustment stud 2.2.2. The feeding adjusting guide rail spring 2.2.2.4 is positioned between the feeding adjusting guide rail 2.2.2 and the feeding guide rail fixing plate 2.2.3, the feeding adjusting guide rail guide post 2.2.2.1 and the feeding adjusting guide rail adjusting stud 2.2.2.2 extend to the upper plate surface of the feeding guide rail fixing plate 2.2.3, and the feeding adjusting guide rail adjusting stud 2.2.2.2 is provided with a tightening double nut;
See fig. 4, 5 of the description: a feeding fixed guide rail 2.2.1 is provided with a feeding fixed guide rail guide surface 2.2.1.1 and a feeding fixed guide rail side surface 2.2.1.2, a feeding adjusting guide rail guide surface 2.2.2.5 is arranged on the feeding adjusting guide rail 2.2.2.1.1, a PCB guide groove 2.2.4 is formed between the feeding fixed guide rail guide surface 2.2.1 and the feeding adjusting guide rail guide surface 2.2.2.5, and when the PCB 3 moves, the PCB 3 is clamped in the PCB guide groove 2.2.4 to realize the guide of the PCB 3 in the space height direction, and the feeding fixed guide rail side surfaces 2.2.1.2 of the two feeding fixed guide rails 2.2.1 are opposite to realize the guide of the PCB 3 in the width direction when moving;
See fig. 4,5 of the description: a plurality of through holes are also equidistantly formed in the feeding adjusting guide rail 2.2.2, a finished PCB round head positioning needle 2.2.3 is fixedly arranged in the through holes through interference fit, an elastically movable positioning head is arranged at the lower end of the PCB round head positioning needle 2.2.2.3, a positioning ball head made of plastic materials (polyformaldehyde or nylon) is fixedly arranged at the end part of the positioning head through internal threads, and the positioning ball head protrudes out of the feeding adjusting guide rail guide surface 2.2.2.5 by about 0.4mm; when the PCB 3 is clamped in the PCB guide groove 2.2.4, the positioning ball head is contacted with the upper part of the board edge of the PCB 3 and is pressed on the upper part of the board edge of the PCB 3 (the board edge of the PCB 3 is not contacted with the feeding adjusting guide rail guide surface 2.2.2.5 actually), so that friction is generated between the PCB 3 and the positioning ball head in the moving process, and when the PCB 3 moves in place, the free movement of the PCB 3 is limited by utilizing the friction between the PCB 3 and the positioning ball head, so that a positioning mechanism of the PCB 3 is not required to be independently arranged any more, and an executing part of a feeding positioning device is omitted;
See fig. 5 of the specification: when the width of the PCB guide groove 2.2.4 is adjusted, the double nuts are used for adjustment; if the thickness of the PCB 3 is 1.2mm, firstly loosening the double spare and tightening nuts, rotating the double spare and tightening nuts anticlockwise, and moving the feeding adjustment guide rail 2.2.2 downwards under the guide of the feeding adjustment guide rail guide post 2.2.2.1 to reduce the PCB guide groove 2.2.4, and then rotating the double spare and tightening nuts clockwise to gradually enlarge the PCB guide groove 2.2.4; in the adjustment process, continuously checking the width of the PCB guide groove 2.2.4 by using a feeler gauge, and locking and tightening double nuts when the width of the PCB guide groove 2.2.4 reaches 1.4mm, wherein the positioning ball head has 0.2mm of prepressing on the PCB;
See fig. 2 of the specification: a feeding positioning adjustment guide rail 2.7 is fixedly arranged on the bottom plate 2.1, and a feeding positioning adjustment sliding seat 2.6 is arranged on the feeding positioning adjustment guide rail 2.7; the feeding fixed guide rail 2.2.1 is fixedly arranged on the feeding positioning adjustment slide seat 2.6 through the feeding positioning guide rail combined bracket 2.5; when the width between the feeding positioning guide rail assemblies 2.2 needs to be adjusted, the locking of the feeding positioning adjustment sliding seat 2.6 on the feeding positioning adjustment guide rail 2.7 is firstly released, the PCB is arranged in the PCB guide grooves 2.2.4 of the two feeding positioning guide rail assemblies 2.2, the two feeding positioning guide rail assemblies 2.2 are pushed inwards by hands, and then the position of the feeding positioning adjustment sliding seat 2.6 on the feeding positioning adjustment guide rail 2.7 is locked.
See fig. 6 of the specification: in the drawing, one side of the feeding driving guide rail 2.3.1 is omitted in order to facilitate understanding of the structure of the feeding driving combination 2.3; the feeding driving combination 2.3 comprises a feeding driving guide rail 2.3.1, a feeding driving slide block combination 2.3.2 and a feeding driving mechanism 2.3.3; two feeding driving guide rails 2.3.1 are symmetrically arranged and fixedly arranged on the bottom plate 2.1 through feeding driving combined brackets 2.4; the feeding driving slide block combination 2.3.2 is movably arranged between the two feeding driving guide rails 2.3.1, the feeding driving mechanism 2.3.3 drives the feeding driving slide block combination 2.3.2 to reciprocate along the feeding driving guide rails 2.3.1, and the feeding driving slide block combination 2.3.2 pushes the PCB 3 to move along the feeding positioning guide rail combination 2.2 in one direction;
See fig. 7 of the specification: the feeding driving slide block combination 2.3.2 comprises a feeding driving slide block 2.3.2.1, a slide block connecting rod 2.3.2.2 and a pushing claw 2.3.2.3; the two feeding driving sliding blocks 2.3.2.1 are fixedly connected through the sliding block connecting rod 2.3.2.2, the two ends of the sliding block connecting rod 2.3.2.2 are provided with reverse threads, the two ends of the corresponding feeding driving sliding block 2.3.2.1 are provided with threaded holes, and when the sliding block connecting rod 2.3.2.2 is rotated, the distance between the two feeding driving sliding blocks 2.3.2.1 can be adjusted so as to adapt to different lengths of the PCB 3; damping oil is smeared between the contact surfaces of the feeding driving slide 2.3.2.1 and the feeding driving guide rail 2.3.1, and when the feeding driving slide 2.3.2.1 moves between the feeding driving guide rails 2.3.1, damping force exists;
See fig. 8, 9 of the specification: a through groove is formed in the middle of the feeding driving slide block 2.3.2.1, hinge holes are formed in two sides of the through groove, limit stops are arranged in the through groove, a pushing claw hinge hole 2.3.2.3.1 and a pushing claw sliding groove 2.3.2.3.2 are formed in the pushing claw 2.3.2.3, and the pushing claw 2.3.2.3 is arranged in the through groove of the feeding driving slide block 2.3.2.1 and is hinged with the feeding driving slide block 2.3.2.1 through the pushing claw hinge hole 2.3.2.3.1; when the pawl 2.3.2.3 rotates around the hinge shaft, the limit stop in the through groove limits the rotation angle of the pawl 2.3.2.3, so that the pawl 2.3.2.3 has a lifted state and a retracted state; when the pushing claw 2.3.2.3 is in a lifting state, the pushing claw 2.3.2.3 is in a retracting state and cannot be matched with the PCB 3, so that the PCB 3 moves along the feeding positioning guide rail combination 2.2 in one direction;
See fig. 10 of the specification: the feeding driving mechanism 2.3.3 comprises a lead screw 2.3.3.1, a lead screw nut 2.3.3.2, a buffering limit time delay module 2.3.3.3, a driving rod 2.3.3.4 and a driving block 2.3.3.5; the screw rod 2.3.3.1 is rotatably arranged on the bottom plate 2.1 through brackets at two ends, one end of the screw rod 2.3.3.1 is connected with a servo motor 2.3.3.7 through a coupler 2.3.3.6, and the servo motor 2.3.3.7 works in a torque feedback working mode; the screw nut 2.3.3.2 is arranged on the screw 2.3.3.1, the driving rod 2.3.3.4 is fixedly arranged on the upper part of the screw nut 2.3.3.2, the driving blocks 2.3.3.5 are fixedly arranged at two ends of the driving rod 2.3.3.4 through bolts, when the connecting bolts of the driving blocks 2.3.3.5 and the driving rod 2.3.3.4 are loosened, the driving blocks 2.3.3.5 can move along the driving rod 2.3.3.4 and are used for synchronously adjusting the positions of the driving blocks 2.3.3.5 and the feeding driving sliding blocks 2.3.2.1; a sliding groove is arranged on the driving block 2.3.3.5, and a hinge bolt is arranged in the driving block 2.3.3.5 and the pushing claw sliding groove 2.3.2.3.2 to realize the hinge connection of the driving block 2.3.3.5 and the pushing claw 2.3.2.3; see fig. 6 of the specification: when the pawl 2.3.2.3 is in the lifted state, the driving block 2.3.3.5 pushes the pawl 2.3.2.3 to the left, because of the damping force between the feed driving slide 2.3.2.1 and the feed driving rail 2.3.1, the pawl 2.3.2.3 first rotates clockwise about the hinge axis, when the pawl 2.3.2.3 hits the bump stop, the pawl 2.3.2.3 does not rotate (is in the retracted state), at this time the pawl 2.3.2.3 drives the feed driving slide assembly 2.3.2 to move to the left along the feed driving rail 2.3.1, at this time the pawl 2.3.2.3 does not contact the PCB board 3, so that the PCB 3 cannot be pushed to move; when the pusher jaw 2.3.2.3 is in the retracted state and the driving block 2.3.3.5 pushes the pusher jaw 2.3.2.3 to the right, the pusher jaw 2.3.2.3 first rotates counterclockwise about the hinge axis, when the pusher jaw 2.3.2.3 hits the bump stop, the pusher jaw 2.3.2.3 no longer rotates (is in the lifted state), the pusher jaw 2.3.2.3 drives the feed drive slider assembly 2.3.2 to move together to the right along the feed drive rail 2.3.1, at this time, the pusher jaw 2.3.2.3 contacts the PCB 3 to push the PCB 3 to move to the right, so when the feed drive mechanism 2.3.3 drives the feed drive slider assembly 2.3.2 to reciprocate along the feed drive rail 2.3.1, the feeding driving slide block combination 2.3.2 only pushes the PCB 3 to move along the feeding positioning guide rail combination 2.2 to the right direction; the buffering limit time delay modules 2.3.3.3 are arranged at two ends of the screw rod 2.3.3.1 and fixedly connected with the bottom plate 2.1, and the positions of the buffering limit time delay modules can be adjusted along the direction of the screw rod 2.3.3.1 according to specific requirements; when the servo motor 2.3.3.7 drives the screw rod 2.3.3.1 to rotate, the screw rod nut 2.3.3.2 moves linearly along the screw rod 2.3.3.1, when the screw rod nut 2.3.3.2 collides with the buffering limit delay module 2.3.3.3, the output torque of the servo motor 2.3.3.7 is increased, when the output torque is increased to the set torque, the servo motor 2.3.3.7 stops rotating, the positioning of the driving block 2.3.3.5 is realized, and therefore the moving positioning of the PCB 3 in the feeding positioning guide rail combination 2.2 is realized; when the position of the buffer limit delay module 2.3.3.3 on the bottom plate is adjusted, the adjustment of the positioning position of the driving block 2.3.3.5 can be realized, so that the adjustment of the positioning position of the PCB 2 in the feeding positioning guide rail combination 2.2 is realized;
See fig. 11, 12 of the specification: the buffering and limiting delay module 2.3.3.3 comprises a buffering and limiting seat 2.3.3.3.1, a buffering shaft 2.3.3.3.2, a signal delay trigger shaft 2.3.3.3.3, a spacer 2.3.3.3.4, a buffering spring 2.3.3.3.5 and a delay spring 2.3.3.3.6, wherein the buffering shaft 2.3.3.3.2 and the signal delay trigger shaft 2.3.3.3.3 are in a step short shaft shape, and the spacer 2.3.3.3.4 is in a short ring shape; a through hole is formed in the buffer limiting seat 2.3.3.3.1, and a buffer shaft 2.3.3.3.2, a spacer 2.3.3.3.4 and a signal delay trigger shaft 2.3.3.3.3 are sequentially arranged in the through hole; the isolating ring 2.3.3.3.4 is fixedly connected with the through hole in an interference fit manner; the large cylinders of the buffer shaft 2.3.3.3.2 and the signal delay trigger shaft 2.3.3.3.3 are in clearance fit with the through holes of the buffer limiting seat 2.3.3.3.1, the small cylinder at the left end of the buffer shaft 2.3.3.3.2 is in clearance fit with the round hole of the isolating ring 2.3.3.3.4, and the buffer shaft 2.3.3.3.2 and the isolating ring 2.3.3.3.4 can slide along the through holes of the buffer limiting seat 2.3.3.3.1; the buffer spring 2.3.3.3.5 is arranged between the buffer shaft 2.3.3.3.2 and the isolating ring 2.3.3.3.4, and two ends of the buffer spring are respectively abutted against the large cylindrical end face of the buffer shaft 2.3.3.3.2 and the end face of the isolating ring 2.3.3.3.4; the delay spring 2.3.3.3.6 is arranged between the isolating ring 2.3.3.3.4 and the signal delay triggering shaft 2.3.3.3.3, two ends of the delay spring 2.3.3.3.6 are respectively connected with a small cylinder on the right side of the buffer shaft 2.3.3.3.2 and a small cylinder on the left side of the signal delay triggering shaft 2.3.3.3.3 (hooks which are inwards bent are arranged at two ends of the delay spring 2.3.3.3.6, radial through holes are arranged on the small cylinder on the right side of the buffer shaft 2.3.3.3.2 and the small cylinder on the left side of the signal delay triggering shaft 2.3.3.3.3, and the hooks at two ends of the delay spring 2.3.3.3.6 are respectively arranged on the buffer shaft 2.3.3.3.2, The radial through hole of the signal delay trigger shaft 2.3.3.3.3 is used for realizing the connection between the delay spring 2.3.3.3.6 and the buffer shaft 2.3.3.3.2 and the signal delay trigger shaft 2.3.3.3.3); cover plates 2.3.3.3.7 are fixedly arranged on the two end surfaces of the buffer limiting seat 2.3.3.3.1 through countersunk bolts; damping oil is smeared in the through hole of the buffer limit seat 2.3.3.3.1 and the inner hole of the isolating ring 2.3.3.3.4; in addition, four assembly process holes are uniformly distributed on the large cylindrical end face of the signal delay trigger shaft 2.3.3.3.3, when in assembly, the buffer shaft 2.3.3.3.2, the buffer spring 2.3.3.3.5, the isolation ring 2.3.3.3.4, the delay spring 2.3.3.3.6 and the signal delay trigger shaft 2.3.3.3.3 are assembled in advance, and a special assembly tool is utilized to penetrate through the assembly process holes of the signal delay trigger shaft 2.3.3.3.3 to press the isolation ring 2.3.3.3.4 into the set position of the through hole of the buffer limit seat 2.3.3.3.1; the right end face of the buffer limiting seat 2.3.3.3.1 is also fixedly provided with a micro switch 2.3.3.3.8, and the micro switch 2.3.3.3.8 corresponds to a small cylinder on the right side of the signal delay trigger shaft 2.3.3.3.3; in the initial state, the small cylinder on the left side of the buffer shaft 2.3.3.3.2 is 8mm higher than the outer side surface of the cover plate 2.3.3.3.7, the small cylinder on the right side of the signal delay triggering shaft 2.3.3.3.3 is level with the outer side surface of the cover plate 2.3.3.3.7, and a gap of 6mm is formed between the small cylinder and a contact of the micro switch 2.3.3.3.8; the buffer limit time delay module 2.3.3.3 works as follows: when the servo motor 2.3.3.7 rotates, the screw rod 2.3.3.1 is driven to rotate, and the screw rod nut 2.3.3.2 moves linearly along the screw rod 2.3.3.1; compressing the buffer spring 2.3.3.3.5 when the lead screw nut 2.3.3.2 is in contact with the buffer shaft 2.3.3.3.2, and simultaneously damping the movement of the buffer shaft 2.3.3.3.2 by damping oil, under the damping action of the damping oil and the gradually increasing elastic action of the buffer spring 2.3.3.3.5, buffering the impact of the lead screw nut 2.3.3.2 on the buffer limit delay module 2.3.3.3 until the lead screw nut 2.3.3.2 is in full contact with the buffer limit delay module 2.3.3, stopping the rotation when the output torque of the servo motor 2.3.3.7 reaches the set maximum working torque, and stopping the movement of the lead screw nut 2.3.3.2; in the above process, the buffer shaft 2.3.3.3.2 moves synchronously under the pushing of the screw nut 2.3.3.2, the delay spring 2.3.3.3.6 is compressed synchronously, and the delay spring 2.3.3.3.6 pushes the signal delay trigger shaft 2.3.3.3.3 to move, so that the movement speed of the signal delay trigger shaft 2.3.3.3.3 is smaller than the movement speed of the buffer shaft 2.3.3.3.2 due to the damping action of the damping oil; when the lead screw nut 2.3.3.2 is in full contact with the buffer limiting delay module 2.3.3.3, the signal delay trigger shaft 2.3.3.3.3 still continues to move under the pushing of the delay spring 2.3.3.3.6 until the signal delay trigger shaft 2.3.3.3.3 pushes the contact of the micro switch 2.3.3.3.8 to move, and the trigger of the in-place signal of the movement of the lead screw nut 2.3.3.2 is delayed, so that the laser marking machine 1 is prevented from starting marking operation in advance before the PCB 3 is completely positioned, and distortion of a laser marking pattern is formed; in addition, the signal delay trigger shaft 2.3.3.3.3 can adjust the action stroke of the contact of the micro switch 2.3.3.3.8 to have a certain overvoltage, so as to prevent the micro switch 2.3.3.3.8 from being unable to trigger due to insufficient action stroke.
13, 14, 15 And 16 of the specification, the working process of the on-line laser marking feeding and positioning device for the PCB is specifically described; in the specification, fig. 13 shows a situation that the feeding driving mechanism 2.3.3 is at the leftmost end, the pushing claw 2.3.2.3 is in a retracted state, and an automatic line connected with the on-line laser marking feeding positioning device for the PCB board transmits the PCB board 3 to the left end of the feeding positioning device; see fig. 14 of the specification: the control system at the front end of the feeding positioning device 2 sends a control signal, the servo motor 2.3.3.7 rotates clockwise, the lead screw nut 2.3.3.2 moves rightwards, the driving push claw 2.3.2.3 rotates around the hinge shaft, when the hinge shaft rotates to a lifting state, the feeding driving slide block combination 2.3.2 is driven to move rightwards integrally, and the push claw 2.3.2.3 pushes the PCB 3 to move rightwards; see fig. 15 of the specification: stopping moving after the screw nut 2.3.3.2 is completely contacted with the right buffer limit delay module 2.3.3.3, and completely moving the PCB 3 in place, wherein the positioning ball head of the PCB round head positioning pin 2.2.2.3 applies pressure to the PCB 3, so that the position of the PCB 3 is kept unchanged; after delaying for 1 second, the signal delay triggering shaft 2.3.3.3.3 triggers the micro switch 2.3.3.3.8 to act, the signal of the micro switch 2.3.3.3.8 is transmitted to the control system at the front ends of the laser marking machine 1 and the feeding positioning device 2, the control system starts timing (the timing time is equal to the operation time of the laser marking machine 1), and the laser marking machine 1 starts marking operation; see fig. 16 of the specification: the control system at the front end receives the trigger signal of the micro switch 2.3.3.3.8 and then sends a control signal, the servo motor 2.3.3.7 rotates anticlockwise, the lead screw nut 2.3.3.2 moves leftwards and drives the push claw 2.3.2.3 to rotate around the hinge shaft, when the hinge shaft rotates to a retracted state, the feed driving slide block combination 2.3.2 is driven to move leftwards integrally, and at the moment, the push claw 2.3.2.3 is not contacted with the PCB 3 and does not push the PCB 3 to move; when the screw nut 2.3.3.2 is completely contacted with the left buffering limit delay module 2.3.3.3 and then stops moving, after delay time is 1 second, the signal delay triggering shaft 2.3.3.3.3 triggers the micro switch 2.3.3.3.8 to act, the signal of the micro switch 2.3.3.3.8 is transmitted to the control system at the front end of the feeding positioning device 2, the control system sends a control signal to control an automatic line connected with the PCB on-line laser marking feeding positioning device, the PCB 3 is transmitted to the left end of the feeding positioning device, and at the moment, the PCB on-line laser marking feeding positioning device is in an initial state shown in an attached drawing 13 of the specification; when the control system starts timing and ends, the control system sends out a control signal, and the process is repeated to finish the movement and positioning of the PCB 3 on the feeding and positioning device 2; when the feeding and positioning device 2 is used, the contact of a PCB board is not needed to be manually participated in the laser marking process, and the probability of electrostatic damage of a chip is greatly reduced.
The feeding and positioning device 2 can also be applied to an automatic labeling machine for the PCB.
The invention is not described in detail in the prior art.
Claims (8)
1. The on-line laser marking, feeding and positioning device for the PCB comprises a laser marking machine (1) and a feeding and positioning device (2), wherein the feeding and positioning device (2) is fixedly arranged on a workbench of the laser marking machine (1); the on-line laser marking feeding positioning device of the PCB is connected with the PCB production line, so that on-line automatic laser marking of the PCB is realized; the method is characterized in that: the feeding positioning device (2) comprises a bottom plate (2.1), a feeding positioning guide rail combination (2.2) and a feeding driving combination (2.3), wherein the feeding positioning guide rail combination (2.2) and the feeding driving combination (2.3) are fixedly arranged on the bottom plate (2.1); two feeding positioning guide rail combinations (2.2) are symmetrically arranged, and the PCB (3) moves and is positioned between the two feeding positioning guide rail combinations (2.2); the feeding driving combination (2.3) is arranged between the two feeding positioning guide rail combinations (2.2) and is used for driving the PCB (3) to move;
The feeding driving combination (2.3) comprises a feeding driving guide rail (2.3.1), a feeding driving sliding block combination (2.3.2) and a feeding driving mechanism (2.3.3); two feeding driving guide rails (2.3.1) are symmetrically arranged and fixedly arranged on the bottom plate (2.1) through feeding driving combined brackets (2.4); the feeding driving slide block combination (2.3.2) is movably arranged between the two feeding driving guide rails (2.3.1), and the feeding driving mechanism (2.3.3) drives the feeding driving slide block combination (2.3.2) to reciprocate along the feeding driving guide rails (2.3.1);
The feeding driving slide block combination (2.3.2) comprises a feeding driving slide block (2.3.2.1), a slide block connecting rod (2.3.2.2) and a pushing claw (2.3.2.3); two feeding driving sliding blocks (2.3.2.1) are arranged and fixedly connected through a sliding block connecting rod (2.3.2.2), and a pushing claw (2.3.2.3) is hinged in the feeding driving sliding blocks (2.3.2.1); damping oil is smeared between the contact surfaces of the feeding driving sliding block (2.3.2.1) and the feeding driving guide rail (2.3.1);
the feeding driving combination (2.3) is provided with a buffering limit delay module (2.3.3.3) which is used for buffering when the PCB (3) is driven to be in place and delay triggering of signals of the PCB (3) in place.
2. The on-line laser marking and feeding positioning device for the PCB according to claim 1, wherein the on-line laser marking and feeding positioning device is characterized in that: the feeding positioning guide rail combination (2.2) comprises a feeding fixed guide rail (2.2.1), a feeding adjusting guide rail (2.2.2) and a feeding guide rail fixing plate (2.2.3), wherein the feeding guide rail fixing plate (2.2.3) is fixedly arranged on the upper portion of the feeding fixed guide rail (2.2.1), the feeding adjusting guide rail (2.2.2) is arranged between the feeding fixed guide rail (2.2.1) and the feeding guide rail fixing plate (2.2.3), and a PCB guide groove (2.2.4) is formed between the feeding fixed guide rail (2.2.1) and the feeding adjusting guide rail (2.2.2.2) by connecting the feeding adjusting guide rail guide post (2.2.2.1), the feeding adjusting guide rail adjusting stud (2.2.2.2) and the feeding guide rail fixing plate (2.2.2.3).
3. The on-line laser marking and feeding positioning device for the PCB according to claim 2, wherein the on-line laser marking and feeding positioning device is characterized in that: a feeding adjusting guide rail spring (2.2.2.4) is arranged between the feeding adjusting guide rail (2.2.2) and the feeding guide rail fixing plate (2.2.3).
4. The on-line laser marking and feeding positioning device for the PCB according to claim 1, wherein the on-line laser marking and feeding positioning device is characterized in that: a plurality of PCB round head positioning pins (2.2.2.3) are fixedly arranged on the feeding adjusting guide rail (2.2.2), and positioning balls of the PCB round head positioning pins (2.2.2.3) are protruded into the PCB guide grooves (2.2.4).
5. The on-line laser marking and feeding positioning device for the PCB according to claim 2, wherein the on-line laser marking and feeding positioning device is characterized in that: a feeding positioning adjustment guide rail (2.7) is fixedly arranged on the bottom plate (2.1), and a feeding positioning adjustment sliding seat (2.6) is arranged on the feeding positioning adjustment guide rail (2.7); the feeding fixed guide rail (2.2.1) is fixedly arranged on the feeding positioning adjustment sliding seat (2.6) through the feeding positioning guide rail combined bracket (2.5).
6. The on-line laser marking and feeding positioning device for the PCB according to claim 5, wherein the on-line laser marking and feeding positioning device is characterized in that: the feeding driving mechanism (2.3.3) comprises a screw (2.3.3.1), a screw nut (2.3.3.2), a buffering limit time delay module (2.3.3.3), a driving rod (2.3.3.4) and a driving block (2.3.3.5); the screw rod (2.3.3.1) is rotatably arranged on the bottom plate (2.1) through brackets at two ends, one end of the screw rod (2.3.3.1) is connected with a servo motor (2.3.3.7) through a coupler (2.3.3.6), and the servo motor (2.3.3.7) works in a torque feedback working mode; the screw nut (2.3.3.2) is arranged on the screw (2.3.3.1), the driving rod (2.3.3.4) is fixedly connected with the screw nut (2.3.3.2), and the driving blocks (2.3.3.5) are fixedly arranged at two ends of the driving rod (2.3.3.4); the driving block (2.3.3.5) is hinged with the pushing claw (2.3.2.3); the buffering limit time delay modules (2.3.3.3) are arranged at two ends of the screw rod (2.3.3.1) and fixedly connected with the bottom plate (2.1).
7. The on-line laser marking and feeding positioning device for the PCB according to claim 6, wherein the positioning device is characterized in that: the buffering limit time delay module (2.3.3.3) comprises a buffering limit seat (2.3.3.3.1), a buffering shaft (2.3.3.3.2), a signal time delay trigger shaft (2.3.3.3.3), an isolating ring (2.3.3.3.4), a buffering spring (2.3.3.3.5) and a time delay spring (2.3.3.3.6); a through hole is formed in the buffering limiting seat (2.3.3.3.1), and a buffering shaft (2.3.3.3.2), a spacer ring (2.3.3.3.4) and a signal delay triggering shaft (2.3.3.3.3) are sequentially arranged in the through hole; the isolating ring (2.3.3.3.4) is fixedly connected with the through hole, and the buffer shaft (2.3.3.3.2) and the signal delay triggering shaft (2.3.3.3.3) slide along the through hole; the buffer spring (2.3.3.3.5) is arranged between the buffer shaft (2.3.3.3.2) and the isolating ring (2.3.3.3.4); the delay spring (2.3.3.3.6) is arranged between the isolating ring (2.3.3.3.4) and the signal delay trigger shaft (2.3.3.3.3), and two ends of the delay spring (2.3.3.3.6) are respectively connected with the buffer shaft (2.3.3.3.2) and the signal delay trigger shaft (2.3.3.3.3); damping oil is smeared in the through hole of the buffering limit seat (2.3.3.3.1) and the inner hole of the isolating ring (2.3.3.3.4).
8. The on-line laser marking and feeding positioning device for the PCB according to claim 7, wherein the on-line laser marking and feeding positioning device is characterized in that: and a micro switch (2.3.3.3.8) is also fixedly arranged in the buffer limit time delay module (2.3.3.3), and the micro switch (2.3.3.3.8) corresponds to the signal time delay trigger shaft (2.3.3.3.3).
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| CN112811096A (en) * | 2021-01-06 | 2021-05-18 | 李�杰 | Cast member conveyer |
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| CN214392817U (en) * | 2020-12-07 | 2021-10-15 | 陕西法士特齿轮有限责任公司 | Full-automatic laser marking machine |
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| CN218987831U (en) * | 2023-02-03 | 2023-05-09 | 三佳泰克诺（天津）机械设备有限公司 | Workpiece pushing and conveying device |
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| CN116689981A (en) * | 2023-07-11 | 2023-09-05 | 苏州光宝科技股份有限公司 | Circuit board clamping rail |
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