Visual positioning laser marking device

Abstract

The utility model relates to a visual positioning laser marking device, which comprises a laser generator, a galvanometer controller and a visual camera assembly, the galvanometer controller is arranged at the front end of the laser generator, the visual camera assembly is arranged below the laser generator in parallel, and a spectroscope is arranged at the intersection of the galvanometer controller and the visual assembly at an angle of 45 degrees. The laser generator and the visual camera assembly form a same light path system through the spectroscope. According to the utility model, the laser generator and the visual camera assembly form a same optical path system through the spectroscope, so that laser marking is realized, and visual positioning and detection are realized. In addition, the laser generator generates laser beams of engraved characters through the galvanometer controller, and the laser beams do not affect and damage the visual detection assembly. Meanwhile, the laser generator is connected to the lifting mechanism based on the rolling lead screw in a rotating mode, the height position of the visual positioning laser marking mechanism can be manually, rapidly and accurately adjusted, and practicability and universality are better.

Description

Technical Field

[0001] The utility model relates to the technical field of laser marking, in particular to a visual positioning laser marking device. Background Art

[0002] After IC chip burning or testing, it is generally necessary to use a laser marking machine to mark the chip. With the integration and miniaturization of IC chips, the marking position and the marking itself are getting smaller and smaller, so the accuracy, stability and marking quality requirements of the marking device are getting higher and higher.

[0003] The existing laser marking mechanism is generally fixed at a specified position on the burning machine. If the chip size is changed during production, the laser marking mechanism needs to be dismantled and readjusted. The operation procedure is relatively complicated, which is not conducive to batch automatic burning or testing.

[0004] Moreover, recalibration and positioning work is required to ensure the position and accuracy of the engraving. Many existing laser marking mechanisms use manual adjustment of the position of the chip carrier, but manual adjustment of miniaturized chips is time-consuming and labor-intensive, and the marking accuracy is difficult to guarantee. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a laser marking device with integrated visual positioning.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A visual positioning laser marking device, comprising a laser generator, a galvanometer controller and a visual camera assembly, wherein the galvanometer controller is arranged at the front end of the laser generator, the visual camera assembly is arranged in parallel below the laser generator, a beam splitter is arranged at a 45° angle between the intersection of the galvanometer controller and the visual camera assembly, and the laser generator forms a same optical path system with the visual camera assembly through the beam splitter; the laser generator generates a laser beam, and generates a laser beam for engraving characters through the galvanometer controller, and the laser beam for engraving characters passes through the beam splitter downward, passes through an optical cavity and a light outlet, and then performs laser engraving on a chip below the light outlet; the chip below the light outlet emits light that is emitted by the beam splitter and enters the optical cavity; Visual positioning and detection are performed in the visual camera assembly; it also includes a lifting mechanism that drives the laser generator to move up and down; the lifting mechanism includes a knob, a lifting screw, a slider and a slide rail, the slider is connected to the slide rail through a bearing, the slider is fixedly connected to the roller bearing of the lifting screw, the knob drives the lifting screw to rotate, and the lifting screw converts the rotary motion into linear motion through the roller bearing to drive the slider to move up and down on the slide rail; the lifting screw, the slider and the slide rail are arranged inside the lifting mechanism, the lifting screw passes through the top connection knob of the lifting mechanism, and slide grooves are opened on the left and right sides of the lifting mechanism, and the laser generator is fixedly connected to the slider through the slide groove via an adapter frame.

[0008] Furthermore, a locking screw assembly for locking the lifting screw is also provided at the upper end of the lifting mechanism.

[0009] Furthermore, a protective cover is provided around the optical cavity and the beam splitter for protection.

[0010] Furthermore, a fume hood interface is also provided on the periphery of the optical cavity, and the fume hood interface is connected to the dust collection box through a pipeline.

[0011] Furthermore, the visual positioning laser marking device is fixed on the table top of the machine, and the interior of the machine is used to arrange the control system and the electrical system.

[0012] The beneficial effects of the utility model are:

[0013] The utility model uses a beam splitter to form a laser generator and a visual camera component into a same optical path system, which realizes laser marking and visual positioning and detection. Moreover, the laser beam for marking characters generated by the laser generator through the galvanometer controller will not affect or damage the visual detection component. At the same time, by transferring the laser generator to a lifting mechanism based on a rolling screw, the height position of the visual positioning laser marking mechanism can be manually adjusted quickly and accurately, which is more practical and versatile. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of the hidden part structure of the utility model;

[0015] Figure 2 It is a three-dimensional structural diagram of the utility model;

[0016] Figure 3 for Figure 1 A side view and a cross-sectional view of the lifting mechanism marked 8 in FIG.

[0017] Figure 4 It is an assembly diagram of an embodiment of the utility model;

[0018] The markings in the figure are:

[0019] 1. Laser generator, 2. Galvanometer controller, 3. Beam splitter, 4. Visual camera assembly, 5. Optical cavity, 6. Fume hood interface, 7. Adapter frame, 8. Lifting mechanism, 9. Machine platform;

[0020] 501, light outlet, 502, protective cover, 801, knob, 802, locking screw, 803, lifting screw, 8031, rolling bearing, 804, slider, 805, bearing, 806, slide rail. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] like Figure 1-2As shown, the utility model provides a visual positioning laser marking device, including a laser generator 1, a galvanometer controller 2, a beam splitter 3 and a visual camera assembly 4, the galvanometer controller 2 is arranged at the front end of the laser generator 1, the visual camera assembly 4 is arranged in parallel below the laser generator 1, the beam splitter 3 is arranged at an angle of 45° between the galvanometer controller 2 and the visual camera assembly 4, and the laser generator 1 forms a same optical path system with the visual camera assembly 4 through the 45° beam splitter 3.

[0024] like Figure 1 As shown, the laser generator 1 generates a laser beam, which generates the required laser beam for engraving characters through the galvanometer controller 2. The laser beam for engraving characters is emitted downward through the beam splitter 3, passes through the optical cavity 5 and the light outlet 501, and then performs laser engraving on the IC chip below the light outlet. The reflected light of the IC chip below the light outlet is reflected by the beam splitter 3 and enters the visual camera component 4 for visual positioning and detection.

[0025] In order to avoid safety hazards such as human body burns caused by the laser beam, the visual camera assembly, the beam splitter and the periphery of the optical cavity are all arranged with a protective cover 502. The periphery of the optical cavity is also provided with a smoke hood interface 6, which is connected to the dust collection box through a pipeline to collect and process the smoke generated by laser marking.

[0026] Furthermore, in order to improve the practicality and versatility of the visual positioning laser marking device of the utility model, as Figure 1 and Figure 3 As shown, a lifting mechanism 8 is also included. The laser generator 1 is connected to the lifting mechanism 8 through an adapter frame 7, and the height position of the laser generator is adjusted through the lifting mechanism 8.

[0027] like Figure 3 As shown, the lifting mechanism 8 includes a knob 801, a lifting screw 803, a slider 804 and a slide rail 806. The adapter frame 7 is fixed to the slider 804. The left and right sides of the slider 804 are slidably connected to the slide rails 806 on the left and right sides through bearings 805. The middle of the slider 804 is slidably connected to the lifting screw 803, and the knob 801 is fixed to the top of the lifting screw 803. By rotating the knob 801, the lifting screw 803 is driven to rotate, and then the rotation force is converted into a lifting force through the roller bearing on the lifting screw 803, driving the slider 804 to slide up and down on the slide rail 806. The lifting screw 803, the slider 804 and the slide rail 806 are all arranged inside the lifting mechanism 8. The top of the lifting screw 803 passes through the top of the lifting mechanism 8 to connect the knob 801. The lifting mechanism 8 has slide grooves on the left and right sides. The adapter frame 7 passes through the slide grooves and is fixedly connected to the slider 804.

[0028] Further, such as Figure 3As shown, the upper end of the lifting mechanism 8 is also provided with a locking screw assembly 802 for locking the lifting screw. By locking and releasing the locking screw 802, the lifting screw 803 is locked and released.

[0029] like Figure 4 As shown, the visual positioning laser marking device with a lifting function of the utility model is fixed on the table of the machine platform 9 to form an independent visual positioning laser marking device, and the inside of the machine platform 9 is used to arrange the control system and the electrical system.

[0030] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A visual positioning laser marking device, comprising a laser generator, a galvanometer controller and a visual camera assembly, characterized in that: The galvanometer controller is arranged at the front end of the laser generator, the visual camera assembly is arranged in parallel below the laser generator, a beam splitter is arranged at a 45° angle between the intersection of the galvanometer controller and the visual camera assembly, and the laser generator forms a same optical path system with the visual camera assembly through the beam splitter; the laser generator generates a laser beam, and generates a laser beam for engraving characters through the galvanometer controller, and the laser beam for engraving characters passes through the beam splitter downward, through the optical cavity and the light outlet, and then performs laser engraving on the chip below the light outlet; the chip below the light outlet emits light through the beam splitter and then enters the visual camera assembly for visual positioning and detection; The lifting mechanism further comprises a lifting mechanism for driving the laser generator to move up and down, the lifting mechanism comprising a knob, a lifting screw, a slider and a slide rail, the slider being connected to the slide rail via a bearing, the slider being fixedly connected to a roller bearing of the lifting screw, the knob driving the lifting screw to rotate, the lifting screw converts the rotary motion into a linear motion via the roller bearing to drive the slider to move up and down on the slide rail; the lifting screw, the slider and the slide rail are arranged inside the lifting mechanism, the lifting screw passes through the top of the lifting mechanism to connect the knob, slide grooves are provided on the left and right sides of the lifting mechanism, and the laser generator passes through the slide grooves via an adapter frame and is fixedly connected to the slider.

2. A visual positioning laser marking device as claimed in claim 1, characterized in that: The upper end of the lifting mechanism is also provided with a locking screw assembly for locking the lifting screw.

3. A visual positioning laser marking device as claimed in claim 2, characterized in that: A protective cover is arranged around the periphery of the optical cavity and the beam splitter for protection.

4. A visual positioning laser marking device as claimed in claim 3, characterized in that: A smoke hood interface is also provided on the periphery of the optical cavity, and the smoke hood interface is connected to the dust collecting box through a pipeline.

5. A visual positioning laser marking device as claimed in claim 4, characterized in that: The visual positioning laser marking device is fixed on the table top of the machine, and the interior of the machine is used to arrange the control system and the electrical system.

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