CN108500467A - Laser marking device - Google Patents

Abstract

A laser marking device, comprising a workbench, a material feeding device installed on the workbench, a laser arranged on the material feeding device, and a detection mechanism arranged on the material feeding device; The material feeding device includes an X-axis driving mechanism, a Y-axis driving mechanism connected to the X-axis driving mechanism, and a bearing plate connected to the Y-axis driving mechanism; the detection mechanism includes a The initial positioning camera on the top and the fine positioning camera arranged on the material feeding device; the initial positioning camera, the fine positioning camera and the laser are set correspondingly; the camera port of the fine positioning camera is close to the laser output settings. Preliminary detection of the position of the carrier through the initial positioning camera, and the laser marking and positioning of the adjacent micro components are carried out synchronously by the laser and the fine positioning camera, thereby improving the laser marking efficiency of the laser marking equipment for micro components .

Description

Laser marking equipment

technical field

The invention relates to laser marking control technology, in particular to a laser marking device.

Background technique

With the increasing requirements for the quality and reliability of electronic products, it is required to implement individual quality management for tiny components in electronic products, and it is necessary to implement a separate number for each component as its identity authentication, so as to ensure the production and testing of each component The information is recorded to achieve the purpose of quality tracking. This is a demand from high-end electronic products that did not exist before. However, the existing laser marking equipment generally performs positioning and laser marking on the same marked product at the same time, resulting in low efficiency, and is not suitable for laser marking of tiny components in electronic products.

Contents of the invention

Based on this, it is necessary to provide a laser marking device that can simultaneously position and mark different tiny components to solve the problem of low efficiency of existing laser marking devices.

A laser marking device, comprising a workbench, a material feeding device installed on the workbench, a laser arranged on the material feeding device, and a detection mechanism arranged on the material feeding device; The material feeding device includes an X-axis driving mechanism, a Y-axis driving mechanism connected to the X-axis driving mechanism, and a bearing plate connected to the Y-axis driving mechanism; the detection mechanism includes a The initial positioning camera on the top and the fine positioning camera arranged on the material feeding device; the initial positioning camera, the fine positioning camera and the laser are set correspondingly; the camera port of the fine positioning camera is close to the laser output settings.

The above-mentioned laser marking equipment performs preliminary detection of the position of the carrier through the initial positioning camera, and the laser and the fine positioning camera perform laser marking and positioning on adjacent tiny components simultaneously, thereby improving the accuracy of the laser marking equipment for tiny components. Device laser marking efficiency.

In one embodiment, the detection mechanism further includes a mirror; the fine positioning camera is arranged horizontally, and the mirror is connected to one end of the fine positioning camera provided with an imaging port.

In one of the embodiments, the detection mechanism further includes a random inspection camera, and the random inspection camera is arranged between the preliminary positioning camera and the laser.

In one of the embodiments, the X-axis drive mechanism includes an X-axis screw assembly, an X-axis motor connected to the X-axis screw assembly, an X-axis slider connected to the X-axis screw assembly, and the X-axis slider connected to the X-axis screw assembly. The first adapter plate of the X-axis slider; the X-axis motor drives the X-axis slider to move linearly through the X-axis screw assembly, and at the same time, the first adapter plate follows the X-axis The slider moves; the Y-axis drive mechanism includes a Y-axis screw assembly, a Y-axis motor connected to the Y-axis screw assembly, a Y-axis slider connected to the Y-axis screw assembly, and a Y-axis The second adapter plate of the slider; the Y-axis motor drives the Y-axis slider to move linearly through the Y-axis screw assembly, and at the same time, the second adapter plate moves with the Y-axis slider .

In one of the embodiments, the material transfer device further includes a rotating mechanism, the rotating mechanism includes a base installed on the second adapter plate, and a turntable mounted on the base; The carrying plate is mounted on the turntable.

In one of the embodiments, a stand is also included, and the laser and the detection mechanism are installed on the workbench through the stand; a transverse bar is connected to the stand, and one end of the transverse bar extends above the material feeding device; the initial positioning camera is installed on the transverse bar.

In one of the embodiments, it also includes a Z-axis driving mechanism installed on one side of the stand, and the Z-axis driving mechanism includes a Z-axis screw assembly connected to the stand, a Z-axis screw assembly connected to the The Z-axis motor, the Z-axis slider connected to the Z-axis screw assembly, and the support table connected to the Z-axis slider; the Z-axis motor drives the Z-axis slider through the Z-axis screw assembly The block moves linearly, and at the same time, the support table moves along with the Z-axis slider; the laser and the fine positioning camera are installed on the support table.

In one of the embodiments, a feeding mechanism is further included, and the feeding mechanism includes a manipulator installed on the workbench and an adsorption clamp connected to the movable end of the manipulator.

In one of the embodiments, it also includes a material transfer device installed on the workbench, the material transfer device includes a material receiving base installed on the workbench, a lifting mechanism installed on the material receiving base , and a lower connecting mechanism arranged on one side of the lifting mechanism.

In one of the embodiments, a pumping mechanism is further included, and the pumping inlet of the pumping mechanism is arranged correspondingly to the output port of the laser.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the laser marking equipment of a preferred embodiment of the present invention;

Fig. 2 is a three-dimensional schematic diagram of the laser marking device shown in Fig. 1 at another angle;

Fig. 3 is a three-dimensional schematic diagram of the material feeding device in Fig. 1;

Fig. 4 is an exploded schematic view of the material feeding device in Fig. 1;

Fig. 5 is a three-dimensional schematic diagram of the laser and the detection mechanism in Fig. 1;

Fig. 6 is a three-dimensional schematic diagram of the laser and the detection mechanism in Fig. 1 at another angle;

Fig. 7 is a three-dimensional schematic diagram of the feeding mechanism in Fig. 1;

Fig. 8 is a three-dimensional schematic diagram of the feeding mechanism in Fig. 1 at another angle;

FIG. 9 is a working diagram of the laser marking equipment shown in FIG. 1 .

Detailed ways

In order to facilitate the understanding of the present invention, the following will describe the present invention more fully. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

Please refer to FIG. 1 and FIG. 2 , which shows a laser marking device 100 according to a preferred embodiment of the present invention, which is used for laser marking tiny components in electronic products, wherein the tiny components are arranged on a carrier. The laser marking equipment 100 includes a workbench 10, a material feeding device 20 installed on the workbench 10, a laser 30 arranged on the material feeding device 20, and a detection mechanism 40 arranged on the material feeding device 20; The material feeding device 20 includes an X-axis driving mechanism 21, a Y-axis driving mechanism 22 connected to the X-axis driving mechanism 21, and a bearing plate 23 connected to the Y-axis driving mechanism 22; The initial positioning camera 41 and the fine positioning camera 42 arranged on the material feeding device 20; the preliminary positioning camera 41, the fine positioning camera 42 are arranged correspondingly to the laser 30; the camera port of the fine positioning camera 42 is arranged near the output end of the laser 30. When performing laser marking processing, the carrier is placed on the carrier plate 23, and the material feeding device 20 moves and adjusts the position of the tiny components and the carrier; the initial positioning camera 41 conducts a preliminary detection of the position of the carrier to facilitate the material The feeding device 20 moves the slide to the position corresponding to the fine positioning camera 42 and the laser 30; the laser 30 and the fine positioning camera 42 perform laser marking and positioning on adjacent tiny components synchronously, thereby improving the laser marking equipment. 100 pairs of laser marking efficiency for tiny components.

Please refer to Fig. 5 and Fig. 6, in order to avoid fine positioning camera 42 and laser device 30 to overlap on the vertical direction, make fine positioning camera 42 can be close to the output port of laser device 30 as far as possible, to adapt to the relatively dense arrangement of tiny devices, detection mechanism 40 It also includes a mirror 43; the fine positioning camera 42 is arranged horizontally, and the mirror 43 is connected to one end of the fine positioning camera 42 provided with a camera port.

The reflected light of the tiny electronic components below the fine positioning camera 42 enters the camera port of the fine positioning camera 42 after being reflected by the reflector 43; The angle of the incident light, so as to avoid affecting the distance between the imaging port of the precise positioning camera 42 and the output port of the laser 30 due to the limitation of the housing of the laser 30 .

Further, in order to ensure the marking quality of the laser 30 and realize random inspection of the tiny components that have been marked by laser, the detection mechanism 40 also includes a random inspection camera 44 , which is arranged between the initial positioning camera 41 and the laser 30 .

After all the tiny components on the same slide have been written with laser identification codes, the material feeding device 20 moves the slide to the bottom of the sampling camera 44, and then detects the effect of the identification codes of some tiny components on the slide to ensure that the laser 30 marking quality.

In order to ensure that the recording effects of the initial positioning camera 41, the fine positioning camera 42, and the sampling camera 44 are clear, the detection mechanism 40 also includes a first light source generator 45 corresponding to the initial positioning camera 41, and a first light source generator 45 corresponding to the fine positioning camera 42. The second light source generator 46 and the third light source generator 47 correspondingly arranged with the sampling camera 44; The above light, thereby ensuring the clear recording effect of the preliminary positioning camera 41, the fine positioning camera 42, and the random inspection camera 44, and ensuring the positioning and detection effect.

3 and 4, specifically, the X-axis drive mechanism 21 includes an X-axis screw assembly 211, an X-axis motor 212 connected to the X-axis screw assembly 211, and an X-axis slider 213 connected to the X-axis screw assembly 211. , and the first adapter plate 214 connected to the X-axis slider 213; the X-axis motor 212 drives the X-axis slider 213 to move linearly through the X-axis screw assembly 211, and at the same time, the first adapter plate 214 follows the X-axis slider 213 moves; the Y-axis driving mechanism 22 includes a Y-axis screw assembly 221, a Y-axis motor 222 connected to the Y-axis screw assembly 221, a Y-axis slider 223 connected to the Y-axis screw assembly 221, and a Y-axis slider 223 connected The second adapter plate 224; the Y-axis motor 222 drives the Y-axis slider 223 to move linearly through the Y-axis screw assembly 221, and at the same time, the second adapter plate 224 moves with the Y-axis slider 223.

In one embodiment, the Y-axis screw assembly 221 is installed on the first adapter plate 214 , and the bearing plate 23 is installed on the second adapter plate 224 , so that precise movement on the plane of the bearing plate 23 can be realized. In order to prevent the carrier sheet from sliding relative to the carrier plate 23 during laser marking, the carrier plate 23 is provided with an adsorption hole 231 , so that the carrier sheet can be reliably attached to the carrier plate 23 through a vacuum air source. In one embodiment, in order to adjust the height of the carrying plate 23 conveniently, the X-axis driving mechanism 21 is installed on the workbench 10 through the carrying base 25 .

In another embodiment, in order to realize the angle adjustment of the carrier plate 23, so as to avoid the angle deviation when the carrier is placed on the carrier plate 23, resulting in deflection of the identification code written on the tiny components, the material transfer device 80 also includes The rotating mechanism 24, the rotating mechanism 24 includes a base 241 installed on the second adapter plate 224, and a rotating disk 242 arranged on the base 241; The drive of the motor realizes the angle adjustment of the carrier plate 23 and the carrier sheet.

Please refer to FIG. 5 and FIG. 6 , specifically, the laser marking equipment 100 further includes a stand 50 through which the laser 30 and the detection mechanism 40 are installed on the workbench 10 . A horizontal bar 51 is connected to the stand 50 , and one end of the horizontal bar 51 extends above the material feeding device 20 . The initial positioning camera 41 and the random inspection camera 44 are installed on the horizontal bar 51 .

Further, in order to facilitate the adjustment of the distance of the laser 30 relative to the material feeding device 20, to ensure that the marking light of the laser 30 can adapt to the heights of different tiny components, the laser marking equipment 100 also includes a The Z-axis drive mechanism 60, the Z-axis drive mechanism 60 includes a Z-axis screw assembly 61 connected to the stand 50, a Z-axis motor 62 connected to the Z-axis screw assembly 61, a Z-axis slide block 63 connected to the Z-axis screw assembly, and the support table 64 connected to the Z-axis slider 63; the Z-axis motor 62 drives the Z-axis slider 63 to move linearly through the Z-axis screw assembly 61, and at the same time, the support table 64 moves with the Z-axis slider 63; the laser 30 and precision The positioning camera 42 is installed on the support platform 64, so that the height of the laser 30 and the fine positioning camera 42 relative to the material feeding assembly can be adjusted through the Z-axis driving mechanism 60 mechanism.

Specifically, in order to adapt to the tiny components with different arrangement pitches, the detection mechanism 40 also includes a fine-tuning assembly 48, and the fine-positioning camera 42 is connected to the support table 64 through the fine-tuning assembly 48; At the same time, the fine adjustment assembly 48 can also adjust the distance relative to the supporting platform 64 through the screw.

Please refer to Fig. 1 and Fig. 2 again, in order to realize that the carrier sheet is automatically placed on the carrier plate 23 and taken out from the carrier plate 23 in a start-up manner, the laser marking equipment 100 also includes a feeding mechanism 70, and the feeding mechanism 70 includes a The manipulator 71 on the workbench 10 and the adsorption jig 72 connected to the movable end of the manipulator 71, the adsorption jig 72 includes a number of suction nozzles, so as to generate adsorption effect on the carrier chips arranged with tiny components.

Before putting in the slides, the carrier plate 23 moves to a position close to the manipulator 71 through the X-axis drive mechanism 21 and the Y-axis drive mechanism 22, and the material is fed through the movement, lifting, and the suction of the suction clamp 72 at the movable end of the manipulator 71. The mechanism 70 places the slide on the carrier plate 23, and then the carrier plate 23 moves below the initial positioning camera 41 for initial positioning and preliminary position adjustment; when the tiny components on the carrier sheet are laser marked, the carrier plate 23 moves again To a position close to the manipulator 71 , through the movement, lifting, and suction of the suction fixture 72 at the movable end of the manipulator 71 , the feeding mechanism 70 places the slides on the carrier plate 23 and takes them away.

Please refer to Figure 1, Figure 2, Figure 7 and Figure 8. In order to avoid touching the slides with human hands, the slides are generally placed in special trays during the production process; in order to save space, the trays are generally stacked; for Automatically place the slides in the overlapping trays on the carrier plate 23, the laser marking device 100 also includes a material transfer device 80 installed on the workbench 10, the material transfer device 80 includes a bearing installed on the workbench 10 The material bottom plate 81, the lifting mechanism 82 installed on the material receiving bottom plate 81, and the lower connection mechanism 83 arranged on one side of the lifting mechanism 82.

Specifically, the lifting mechanism 82 includes a first moving screw assembly 821 connected to the material receiving base 81 , a first moving motor 822 connected to the first moving screw assembly 821 , a first moving screw assembly 821 connected to the first moving screw assembly 821 The first tray slider 823, the first upper ejector pin 824 connected to the first tray slider 823, the first supporting plate 825 connected to the upper end of the first upper ejector pin 824, and the first tray 825 arranged on the receiving bottom plate 81 Limiting frame 826, the first inner push cylinder 827 that is arranged on the first limit frame 826 upper side, and the first spacer 828 that connects the first inner push cylinder 827; The second pan screw assembly 831, the second pan motor 832 connected to the second pan screw assembly 831, the second pan slider 833 connected to the second pan screw assembly 831, the second pan slider connected to The second upper push rod 834 of the block 833, the second supporting plate 835 connected to the upper end of the second upper push rod 834, the second limit frame 836 arranged on the material receiving base plate 81, and the second limit frame 836 upper side The second push-in cylinder 837 and the second separator 838 connected to the second push-in cylinder 837.

The stacked trays loaded with tiny components to be laser marked are placed on the first pallet 825, and an empty tray is initially placed on the second pallet 835; Disc screw rod assembly 821, the first moving disc slider 823 and the first upper ejector rod 824, the first supporting plate 825 will raise the top layer of the overlapping material disc to a proper position, and then the feeding mechanism 70 will successively lift the top layer of the lifting mechanism 82 The carrier in the top layer tray is taken out, and placed on the carrying plate 23 for marking processing, and the marked carrier sheet is placed in the tray on the lower connection mechanism 83; the top layer tray in the lifting mechanism 82 is emptied Finally, the feeding mechanism 70 transfers the top layer tray to the lower connection mechanism 83 through the adsorption fixture 72, and the first separator 828 restricts the second top layer tray, thereby preventing the second top layer material from following the top layer tray to rise.

Please refer to Fig. 5 and Fig. 6 again, further, in order to eliminate the gas generated when the laser 30 marks tiny components, the laser marking equipment 100 also includes an air pumping mechanism 90, the air pumping inlet of the air pumping mechanism 90 is connected with the laser The output port of 30 corresponds to the setting.

The pumping mechanism 90 realizes the suction of the gas near the pumping inlet through the movement of the internal motor and the piston.

Please refer to Fig. 9, specifically, the distance between the output end of the laser 30 and the imaging port of the fine positioning camera 42 corresponds to the distance between the adjacent tiny components on the slide; The actual position of the tiny electronic components below; Simultaneously, the laser 30 outputs the marking light, and the surface of the tiny electronic components located below the output port of the laser 30 is engraved with an identification code. In this embodiment, the laser 30 is located below the output port of the laser 30 Two-dimensional codes are written on the surface of the tiny electronic components; after the positioning is completed under the fine positioning camera 42, the tiny electronic components are moved to the bottom of the output port of the laser 30 through the material feeding device 20, and during the movement, the material feeding device 20 according to the precision Position the actual position of the tiny electronic component obtained by the camera 42 to adjust the moving distance in the X-axis direction and the Y-axis direction, so that the laser 30 can accurately write the identification code on the surface of the tiny electronic component; under the fine positioning camera 42 During the process of moving one of the tiny electronic components below the output port of the laser 30, another tiny electronic component synchronously moves below the fine positioning camera 42, so that the positioning of the laser marking equipment 100 and the laser marking process are accurate to the adjacent tiny electronic components on the slide. The components are carried out synchronously, thereby improving the laser marking efficiency of the tiny components of the laser marking equipment 100, and helping to realize the independent quality management of the laser marking of the tiny components.

Specifically, the detection mechanism 40 also includes a controller 49, and the controller 49 determines the actual position of the tiny component under the camera port of the fine positioning camera 42 according to the captured image of the fine positioning camera 42, and determines the actual position of the tiny component according to the actual position of the tiny component And calculate the amount of movement required by the X-axis drive mechanism 21 and the Y-axis drive mechanism 22, to ensure that the tiny electronic components below the fine positioning camera 42 are accurately moved below the output port of the laser 30. Compared with the general method, this embodiment is The position is adjusted while the tiny component is moved below the output port of the laser 30 , thereby improving the operating efficiency of the laser marking device 100 .

In this embodiment, the initial positioning camera is used to initially detect the position of the slide, and the laser and the fine positioning camera are used to perform laser marking and positioning of adjacent tiny components simultaneously, thereby improving the accuracy of the laser marking equipment for tiny components. laser marking efficiency.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. a kind of laser marking device, which is characterized in that the material feeding dress including workbench, on the workbench The laser set, being arranged on the material feed arrangement and the testing agency being arranged on the material feed arrangement；It is described Material feed arrangement includes that X-axis driving mechanism, the Y-axis driving mechanism of the connection X-axis driving mechanism and the connection Y-axis are driven The loading plate of motivation structure；The testing agency includes the first positioning camera being arranged on the material feed arrangement and is arranged in institute State the fine positioning camera on material feed arrangement；The just positioning camera, the fine positioning camera is corresponding with the laser sets It sets；The camera shooting mouth of the fine positioning camera is arranged close to the output end of the laser.

2. laser marking device according to claim 1, which is characterized in that the testing agency further includes speculum；Institute It states fine positioning camera to be horizontally disposed with, the speculum connects one end that the fine positioning camera is equipped with camera shooting mouth.

3. laser marking device according to claim 1, which is characterized in that the testing agency further includes sampling observation camera, Sampling observation camera setting is described just between positioning camera and the laser.

4. laser marking device according to claim 1, which is characterized in that the X-axis driving mechanism includes X-axis lead screw group Part, the X-axis motor of the connection X-axis screw component, the X-axis slide block of the connection X-axis screw component and the connection X-axis are slided First pinboard of block；The X-axis motor drives the X-axis slide block to move linearly by the X-axis screw component, together When, first pinboard follows the X-axis slide block to move；The Y-axis driving mechanism includes Y-axis screw component, the connection Y Second switching of the y-axis motor of axial filament bar assembly, the Y-axis sliding block of the connection Y-axis screw component and the connection Y-axis sliding block Plate；The y-axis motor drives the Y-axis sliding block to move linearly by the Y-axis screw component, meanwhile, described second turn Fishplate bar follows the Y-axis sliding block to move.

5. laser marking device according to claim 4, which is characterized in that the material transferring device further includes rotating machine Structure, the rotating mechanism include the pedestal being mounted on second pinboard and the turntable being rotatably arranged on the pedestal； The loading plate is mounted on the turntable.

6. laser marking device according to claim 1, which is characterized in that further include stand, the laser, the inspection Mechanism is surveyed to be mounted on the workbench by the stand；Cross slat, one end of the Cross slat are connected in the stand It extends to above the material feed arrangement；The just positioning camera is mounted on the Cross slat.

7. laser marking device according to claim 6, which is characterized in that further include the Z mounted on the stand side Axis driving mechanism, the Z axis driving mechanism include the Z axis screw component for connecting the stand, the connection Z axis screw component The supporting table of Z axis motor, the Z axis sliding block of the connection Z axis lead screw assembly and the connection Z axis sliding block；The Z axis motor is logical Crossing the Z axis screw component drives the Z axis sliding block to move linearly, meanwhile, the supporting table follows the Z axis sliding block to move It is dynamic；The laser and fine positioning camera installation are on the supporting table.

8. laser marking device according to claim 1, which is characterized in that further include feeding machanism, the feeding machanism It include the suction jig of the movable end of the manipulator and the connection manipulator on the workbench.

9. laser marking device according to claim 8, which is characterized in that further include the object being mounted on the workbench Expect that transfer device, the material transferring device include the bearing material bottom plate being mounted on the workbench, the installation bearing material bottom plate On elevation mechanism and lower connection mechanism in the elevation mechanism side is set.

10. laser marking device according to claim 1, which is characterized in that further include extraction sector, the extraction sector The delivery outlet of bleed air inlet and the laser be correspondingly arranged.