Circuit board laser etching equipment

Abstract

The utility model discloses circuit board laser etching equipment which comprises a laser etching cabin, a laser etching device and an automatic conveying line are arranged in the laser etching cabin, the automatic conveying line is arranged at the bottom of the laser etching device and used for carrying and conveying PCBs, and the laser etching cabin is provided with feeding and discharging grooves matched with the two ends of the automatic conveying line in a one-to-one correspondence mode. The laser carving device comprises a laser carving carrying seat and a displacement driving mechanism used for driving the laser carving carrying seat to conduct laser carving displacement, and the laser carving carrying seat is provided with a laser used for conducting laser carving on the PCB and a laser carving visual detection mechanism used for detecting a laser carving forming body on the PCB. According to the utility model, automatic conveying and laser etching forming operation of the PCB are met, laser etching forming and on-line detection can be realized, and the operation is efficient, smooth and safe. And a visual guiding mechanism is arranged, so that the laser etching track operation is more accurate, and the product forming qualification rate is remarkably improved. And on-line overturning can be achieved, and the double-face laser etching forming requirement of the PCB is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of circuit board engraving equipment, belong to the technical field of laser engraving equipment. BACKGROUND

[0002] PCB is printed circuit board, as the key component of electronic component, its precision requirement in processing process is extremely strict.Under the prerequisite of not affecting the integrity of electric board, various clear visible codes, graphics and text marks, parameters, model and two-dimensional code information need to be accurately engraved.In order to meet this demand, laser marking machine specially designed for PCB board emerges as the times require.With the continuous progress of science and technology, fully automatic laser marking machine has gradually become the new trend of industry development.

[0003] Laser marking technology, through high energy density laser, PCB board is accurately irradiated, so that material surface layer vaporizes or color change occurs, thereby forming durable mark.This non-contact processing mode can produce high-definition two-dimensional code in very small space, with high precision and high quality.In addition, laser marking has excellent durability, is not affected by high and low temperature, pH change and external friction, and does not need to use chemical substances, is safe and harmless to personnel and environment.In the field of PCB board laser marking, UV laser marking and CO2 laser marking are highly respected due to small heat influence, good processing effect, high precision and fast speed, and have become the preferred technology for PCB board surface marking.

[0004] In prior art, circuit board engraving equipment is all closed type operation, which realizes by fixed carrier mode, i.e.frequent opening and closing of hatch for material replacement, low operation efficiency and certain safety hazard.In addition, traditional circuit board engraving equipment realizes displacement by fixed control of control end, which will exist certain position deviation in actual operation, so that engraving printing qualified rate is greatly affected, and online detection requirement cannot be met. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the deficiency of prior art, and proposes a kind of circuit board engraving equipment for the problems of frequent material switching of traditional engraving and unable to meet displacement precision and online detection.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] A kind of circuit board engraving equipment, including engraving cabin, the engraving cabin is equipped with engraving device and the automatic conveying line for carrying PCB board conveying arranged in the bottom of the engraving device, the engraving cabin has the inlet and outlet slot corresponding with the two ends of the automatic conveying line;

[0008] The laser etching device comprises a laser etching carrier and a displacement driving mechanism for driving the laser etching carrier to displace, the laser etching carrier is provided with a laser etching laser for laser etching on a PCB and a laser etching visual detection mechanism for detecting a laser etching formed body on the PCB.

[0009] Preferably, the laser etching carrier is provided with a laser etching visual guiding mechanism in communication connection with the displacement driving mechanism for laser etching visual guiding.

[0010] Preferably, the displacement driving mechanism comprises a first horizontal rail, a second horizontal rail arranged on the first horizontal rail, and a bearing sliding seat arranged on the second horizontal rail for carrying the laser etching carrier.

[0011] The second horizontal rail is provided with linear sliding displacement along the direction of the first horizontal rail, the bearing sliding seat is provided with linear sliding displacement along the direction of the second horizontal rail, and the linear sliding displacement direction of the bearing sliding seat is perpendicular to the linear sliding displacement direction of the second horizontal rail.

[0012] Preferably, the laser etching carrier is provided with lifting adjustment displacement.

[0013] Preferably, the automatic conveying line comprises two bearing rails arranged at intervals, any of the bearing rails is provided with a circulating conveying belt, and the conveying path of the automatic conveying line is provided with a stop and release positioning mechanism for stopping or releasing the PCB.

[0014] Preferably, two horizontal supporting conveying parts arranged at intervals along the direction of the automatic conveying line are arranged between the two bearing rails, and a turnover mechanism for clamping and overturning the PCB is arranged between the two horizontal supporting conveying parts.

[0015] The turnover mechanism is provided with a pushing power mechanism for pushing the PCB to any of the horizontal supporting conveying parts.

[0016] Preferably, the turnover mechanism comprises two turnover rails arranged at intervals, a rotary driving source in transmission connection with any of the turnover rails, and two feeding belt bodies provided with clamping gaps and arranged oppositely on the turnover rails.

[0017] Preferably, the pushing power mechanism comprises a power source in driving connection with the feeding belt body.

[0018] Preferably, the pushing power mechanism comprises a pushing power source provided with lifting displacement and horizontal telescopic displacement.

[0019] The beneficial effects of the utility model mainly embody in:

[0020] 1. Meet the PCB board automation conveying and laser engraving forming operation, can realize laser engraving forming and online detection, run high efficiency, smooth and safe.

[0021] 2. With visual guidance mechanism, so that the laser engraving track runs more accurately, and the product forming qualified rate is significantly improved.

[0022] 3. Can realize online turnover, meet the demand of double-sided laser engraving forming of PCB board. BRIEF DESCRIPTION OF DRAWINGS

[0023] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, read in conjunction with the accompanying drawings:

[0024] Figure 1 is a structural schematic diagram of a circuit board laser engraving equipment of the utility model.

[0025] Figure 2 is a whole structural schematic diagram of a circuit board laser engraving equipment of the utility model.

[0026] Figure 3 is a structural schematic diagram of a laser engraving device in a circuit board laser engraving equipment of the utility model.

[0027] Figure 4 is another perspective structural schematic diagram of a laser engraving device in a circuit board laser engraving equipment of the utility model.

[0028] Figure 5 is a structural schematic diagram of an automatic conveying line in a circuit board laser engraving equipment of the utility model.

[0029] Figure 6 is another perspective structural schematic diagram of an automatic conveying line in a circuit board laser engraving equipment of the utility model. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not to limit the utility model. In addition, it should be noted that only parts related to the utility model are shown in the drawings for ease of description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0032] The utility model provides a kind of circuit board engraving equipment, as shown in Figures 1 to 6 It includes engraving cabin 1, engraving device 2 and the automatic conveying line 3 for carrying PCB board 100 conveying being set in the bottom of engraving device 2 are equipped in engraving cabin 1, engraving cabin 1 has the in-out material slot 10 corresponding with the two ends of automatic conveying line.

[0033] Engraving device 2 includes engraving carrier 4 and displacement driving mechanism 5 for driving engraving carrier to engrave displacement, laser 41 for being used to engrave on PCB board is equipped on engraving carrier 4, and engraving visual detection mechanism 42 for detecting engraving shaped body on PCB board.

[0034] Specific implementation process and principle explanation:

[0035] PCB board 100 is fed by in-out material slot 10, and PCB board enters engraving cabin 1 and is located at the bottom of engraving device 2 along automatic conveying line.

[0036] At this time, engraving device 2 runs, and displacement driving mechanism 5 drives engraving carrier 4 to displace engraving path, and laser 41 realizes the formation of engraving pattern on PCB board, and when engraving is completed, online engraving pattern detection is carried out by engraving visual detection mechanism 42, including scanning code identification detection, surface defect detection and other detection items, and the scheme of meeting online engraving and online detection is within the protection scope of the case.

[0037] In one specific embodiment, engraving visual guidance mechanism 43 for carrying out engraving displacement visual guidance is equipped on engraving carrier 4 and is connected with displacement driving mechanism 5.

[0038] Specifically, displacement driving mechanism 5 needs to run according to pattern trajectory during engraving process, and displacement driving mechanism 5 has certain mechanical displacement deviation during long-term operation, in order to make engraving trajectory more accurate, engraving visual guidance mechanism 43 is adopted, which is as shown in Figure 1 And Figure 4As shown, the inclined laser engraving device is directed to the laser engraving position, so that real-time image capture can be realized, and online deviation correction is realized. The deviation correction operation control associated with the image data belongs to the prior art, and will not be described here. The scheme that meets the requirements of online visual guidance of laser engraving is within the protection scope of the present case.

[0039] In one embodiment, the displacement driving mechanism 5 includes a first horizontal rail 51, a second horizontal rail 52 arranged on the first horizontal rail, and a carrying slide 53 arranged on the second horizontal rail for carrying the laser engraving carrier.

[0040] The second horizontal rail 52 has a linear sliding displacement in the direction of the first horizontal rail, and the carrying slide 53 has a linear sliding displacement in the direction of the second horizontal rail. The linear sliding displacement direction of the carrying slide is perpendicular to the linear sliding displacement direction of the second horizontal rail.

[0041] That is, the carrying slide 53 satisfies the carrying of the laser engraving carrier and satisfies the driving requirement of arbitrary switching displacement in the horizontal plane, and realizes the path operation of various laser engraving patterns. The vertical double horizontal linear displacement driving mechanism has cost advantage and efficient and smooth operation.

[0042] In one embodiment, the laser engraving carrier 4 has a lifting adjustment displacement.

[0043] Through the lifting displacement adjustment, the differentiated laser engraving stroke interval requirement is satisfied, which is more widely applicable. Combined with the intensity adjustment of the laser, the laser engraving texture is more rich.

[0044] In one embodiment, the automatic conveying line 3 includes two supporting rails 31 arranged at intervals, and each supporting rail 31 is provided with a circulating conveying belt 32. The automatic conveying line is provided with a blocking and positioning mechanism 6 for blocking or releasing the PCB.

[0045] Specific implementation process and principle explanation:

[0046] The PCB is supplied through the feeding and discharging slot 10, and the PCB is automatically conveyed on the supporting rail 31 along the circulating conveying belt 32. When the blocking and positioning mechanism 6 is reached, it is blocked. After the laser engraving of the PCB is completed, the blocking and positioning mechanism 6 releases the current PCB, which continues to displace along the automatic conveying line 3 from another feeding and discharging slot 10.

[0047] The blocking and positioning mechanism 6 is described, which is a mechanism that can interfere with the running of the PCB through lifting displacement.

[0048] In one embodiment, two supporting tracks 31 are provided with two horizontal supporting conveying parts 310 arranged at intervals along the direction of the automatic conveying line, and a turnover mechanism 7 for clamping and overturning the PCB is arranged between the two horizontal supporting conveying parts 310. The turnover mechanism is provided with a pushing power mechanism 70 for pushing the PCB to any horizontal supporting conveying part.

[0049] Specifically, the turnover mechanism 7 can realize the turnover operation of the PCB, thereby meeting the demand of double-sided laser etching operation. In addition, the pushing power mechanism is adopted to realize the pushing of the overturned PCB, thereby meeting the demand of the PCB reaching the horizontal supporting conveying part for conveying.

[0050] In one embodiment, the turnover mechanism 7 comprises two turnover track bodies 71 arranged at intervals, a rotary driving source 72 in driving connection with any turnover track body, and two oppositely arranged conveying belt bodies 710 with clamping gaps formed on the turnover track bodies.

[0051] Specifically, the PCB is conveyed by the horizontal supporting conveying part into the clamping gap and is pushed into position by the pushing power mechanism 70, and then the turnover track body 71 is driven by the rotary driving source 72 to overturn by 180°, thereby meeting the demand of double-sided laser etching processing.

[0052] The pushing power mechanism 70 is described as follows:

[0053] In one embodiment, the pushing power mechanism comprises a power source in driving connection with the conveying belt body, i.e. the automatic conveying of the PCB is realized by the transmission structure of the conveying belt body itself.

[0054] In another embodiment, the pushing power mechanism comprises a pushing power source with lifting displacement and horizontal telescopic displacement, i.e. the horizontal pushing of the PCB is realized by the lifting displacement of the pushing power source, and the lifting displacement of the pushing power source is used for avoiding the running path of the PCB, thereby facilitating the conveying and running of the PCB.

[0055] It can be found from the above description that the circuit board laser etching equipment can meet the automatic conveying and laser etching forming operation of the PCB, can realize laser etching forming and online detection, and is high in running efficiency, smooth and safe. The visual guiding mechanism is provided, the laser etching track runs more accurately, and the product forming qualification rate is significantly improved. Online overturning can be realized, thereby meeting the demand of double-sided laser etching forming of the PCB.

[0056] The term "comprising" or any other similar word is intended to encompass non-exclusive inclusion, so that a process, method, article or equipment / device including a series of elements includes not only those elements, but also other elements not explicitly listed, or inherent elements of the process, method, article or equipment / device.

[0057] Thus far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the utility model, and the technical schemes after these changes or replacements will all fall within the protection scope of the utility model.

Claims

1. A circuit board laser engraving device, comprising a laser engraving chamber, characterized in that: The laser engraving chamber is equipped with a laser engraving device and an automated conveyor line for carrying PCB boards is located at the bottom of the laser engraving device. The laser engraving chamber has inlet and outlet slots that correspond one-to-one with the two ends of the automated conveyor line. The laser engraving device includes a laser engraving carrier and a displacement driving mechanism for driving the laser engraving carrier to perform laser engraving displacement. The laser engraving carrier is equipped with a laser for performing laser engraving on a PCB board and a laser engraving vision inspection mechanism for inspecting the laser-engraved body on the PCB board.

2. The circuit board laser engraving equipment according to claim 1, characterized in that: The laser engraving carrier is equipped with a laser engraving visual guidance mechanism that is communicatively connected to the displacement driving mechanism for laser engraving displacement visual guidance.

3. The circuit board laser engraving equipment according to claim 1, characterized in that: The displacement driving mechanism includes a first horizontal track, a second horizontal track disposed on the first horizontal track, and a bearing slide disposed on the second horizontal track for mounting the laser engraving carrier. The second horizontal track has a linear sliding displacement along the direction of the first horizontal track, and the bearing slide has a linear sliding displacement along the direction of the second horizontal track. The direction of the linear sliding displacement of the bearing slide is perpendicular to the direction of the linear sliding displacement of the second horizontal track.

4. The circuit board laser engraving equipment according to claim 3, characterized in that: The laser engraving base has adjustable height and displacement.

5. A circuit board laser engraving equipment according to any one of claims 1 to 4, characterized in that: The automated conveyor line includes two support rails spaced apart from each other, and a circulating conveyor belt is provided on either support rail. The conveying path of the automated conveyor line is provided with a blocking and releasing positioning mechanism for stopping or releasing PCB boards.

6. The circuit board laser engraving equipment according to claim 5, characterized in that: Two horizontal support conveying sections are provided between the two support rails and are spaced apart along the direction of the automated conveyor line; a flipping mechanism is provided between the two horizontal support conveying sections for clamping and flipping the PCB board. The flipping mechanism is equipped with a pushing power mechanism for pushing the PCB board onto any of the horizontal support conveying parts.

7. The circuit board laser engraving equipment according to claim 6, characterized in that: The flipping mechanism includes two flipping track bodies arranged at intervals and a rotary drive source that is connected to either of the flipping track bodies. The flipping track bodies are provided with two oppositely arranged conveyor belts forming clamping gaps.

8. The circuit board laser engraving equipment according to claim 7, characterized in that: The pushing power mechanism includes a power source that is driven and connected to the conveyor belt.

9. The circuit board laser engraving equipment according to claim 7, characterized in that: The pushing power mechanism includes a pushing power source with lifting displacement and horizontal telescopic displacement.

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