PCB laser etching jig and laser etching machine

Abstract

The utility model relates to the technical field of jigs, in particular to a PCB laser etching jig and a laser etching machine. The PCB laser etching jig comprises a bottom plate, a limiting plate, a fixing assembly, a sensor and a smoke suction box. Wherein the limiting plate is fixed on the bottom plate in a spacing adjustable manner through a fixing assembly, and the sensing plate provided with a sensor is arranged on the limiting plate. In the working process, the PCB is fed in a sliding mode along the step, the sensor on the induction plate is triggered after the PCB slides in place, laser etching is conducted after it is confirmed that the PCB is accurately in place, and the laser etching quality is guaranteed. Due to the fact that the distance between the limiting plates can be adjusted, the PCB laser etching jig can be suitable for PCBs with different widths, and the application range of the PCB laser etching jig is widened. And the PCB can be automatically changed into a horizontal state due to gravity in the step sliding process, so that the working efficiency is higher, and the laser etching quality can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a PCB laser engraving jig and a laser engraving machine. Background Art

[0002] PCB board, whose Chinese name is printed circuit board, also known as printed circuit board, is an important electronic component, a support for electronic components, and a carrier for electrical connections of electronic components.

[0003] After the PCB board is completed, it will be laser engraved on it to facilitate the next process or realize QR code identity authentication, etc.

[0004] Laser engraving jigs are used during PCB laser engraving to ensure the laser engraving position of the PCB. However, some laser engraving jigs on the market are usually only suitable for PCBs of a single size and specification, and have a small scope of application. At the same time, some laser engraving jigs also have the problem of low work efficiency.

[0005] For example, the Chinese patent application number: CN201820567633.4 A quick positioning laser engraving jig specifically discloses "A quick positioning laser engraving jig, characterized in that it includes: a common jig for laser engraving and a laser engraving jig, the common jig for laser engraving is fixedly installed on the laser engraving machine, the common jig for laser engraving is provided with a positioning groove with the same external structure as the laser engraving jig in the middle, and the laser engraving jig is installed in the positioning groove". There are at least the following problems: 1. The product is placed in the product structure groove for laser engraving, and the product structure groove is fixed and can only be applied to one product, and there is a problem of a single applicable environment. 2. When the product is placed in the product structure groove, there may be a problem of warping. At this time, the product needs to be pressed down, otherwise the laser engraving will deviate and cause quality problems, and the work efficiency is also low.

[0006] Another example is China's patent application number: CN202122663544.4, a laser engraving jig, which also positions the product through a fixed groove and has the same problems as above. Utility Model Content

[0007] In view of this, the utility model aims at the deficiencies of the prior art, and its main purpose is to provide a PCB laser engraving fixture, which is not only applicable to PCBs of various sizes, but also has high efficiency and guaranteed quality, thereby overcoming the deficiencies of the prior art.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] The present application provides a PCB laser engraving jig, comprising a bottom plate and a limiting plate arranged on the bottom plate; a narrow and long limiting hole is formed through the bottom plate;

[0010] The fixing component passes through the limiting plate and the limiting hole, and fixes the limiting plate at the position of the limiting hole with an adjustable spacing;

[0011] The inner edge of the limit plate is provided with a step; the limit plate is provided with a sensing plate, and the sensing plate is provided with at least one sensor and a plurality of first holes; a smoking box is provided on the rear side of the sensing plate, and the smoking box is provided with a second hole;

[0012] The PCB is suspended on the step, and the PCB can trigger the sensor along the step.

[0013] Preferably, the limiting plate is an L-shaped structure; a notch is provided at the orifice position of the limiting hole away from the limiting plate; the fixing assembly includes a first fixing member and a second fixing member; the second fixing member is limited in the notch; the first fixing member passes through the limiting plate and is fastened together with the second fixing member.

[0014] Preferably, the first fixing member is a screw, and the second fixing member is a nut.

[0015] Preferably, the nut is one of a square nut, a hexagonal nut and an octagonal nut.

[0016] Preferably, the sensor is a photoelectric sensor or a pressure sensor.

[0017] Preferably, there are two sensors, and the two sensors are located in the same plane.

[0018] The present application provides a laser engraving machine, comprising the PCB laser engraving jig; the PCB laser engraving jig is arranged on the top plate of the frame; the top plate is also provided with a display and a safety grating; the safety grating is arranged on the side of the PCB laser engraving jig close to the worker; a laser head and a detection camera are arranged on the upper side of the PCB laser engraving jig.

[0019] Preferably, the top plate is further provided with a lifting module, the laser head is arranged on a mounting frame of the lifting module, the mounting frame has legs, and the legs can be supported on the top plate.

[0020] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be known from the above technical scheme that a PCB laser engraving jig includes a base plate, a limit plate, a fixing component, a sensor, and a smoking box. The limit plate is fixed to the base plate with an adjustable spacing through the fixing component, and the induction plate provided with a sensor is arranged on the limit plate. During operation, the PCB is slid in along the step, and the sensor on the induction plate is triggered after the PCB slides into place. After confirming that the PCB is precisely in place, laser engraving is performed, and the quality of laser engraving is guaranteed. Since the spacing between the limit plates is adjustable, it can be applied to PCBs of different widths, thereby increasing the scope of application of the PCB laser engraving jig. During the sliding process of the step, the PCB will automatically become horizontal due to gravity, which has higher working efficiency and is also conducive to ensuring the quality of laser engraving. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0022] Figure 2 It is a bottom view schematic diagram of the first embodiment of the utility model.

[0023] Figure 3 It is a schematic diagram of a laser engraving machine according to the second embodiment of the present utility model.

[0024] Description of the accompanying drawings:

[0025] 10, bottom plate 11, limiting hole 12, notch 13, first fixing member 14, second fixing member 20, limiting plate 21, step 22, PCB 30, induction plate 31, sensor 32, first hole 40, smoking box 41, second hole

[0026] 50, frame 51, top plate 52, display 53, safety grating 54, laser head 55, detection camera 56, lifting module 57, mounting frame 58, supporting legs. DETAILED DESCRIPTION

[0027] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments. Embodiment 1

[0028] Please refer to Figure 1 to Figure 2 As shown, it shows the specific structure of the preferred embodiment of the utility model, which is a PCB laser engraving fixture.

[0029] The spacing between the limit plates 20 is adjustable, and can be applied to PCBs 22 of different widths. During the sliding process of the step 21, the PCB 22 will automatically become a horizontal state due to gravity, and the working efficiency is higher.

[0030] The present application provides a PCB laser engraving jig, comprising a base plate 10, and a limiting plate 20 arranged on the base plate 10; a narrow and long limiting hole 11 is formed through the base plate 10; a fixing component is passed through the limiting plate 20 and the limiting hole 11, and the limiting plate 20 is fixed at the position of the limiting hole 11 with an adjustable spacing; a step 21 is arranged on the inner edge of the limiting plate 20; the limiting plate 20 is arranged by a sensing plate 30, and the sensing plate 30 is provided with at least one sensor 31 and a plurality of first holes 32; a smoking box 40 is arranged on the rear side of the sensing plate 30, and the smoking box 40 is provided with a second hole 41; a PCB 22 is suspended on the step 21, and the PCB 22 can trigger the sensor 31 along the step 21. The limiting plate 20 is arranged on the base plate 10 through the fixing component. The fixing component is adjustable in tightness, and when the spacing between the limiting plates 20 is required, it can be adjusted by simply loosening the fixing component. The spacing between the limit plates 20 can be adjusted to accommodate PCBs 22 of different widths. The length of the limit plate 20 is usually longer than that of the PCB 22, so the PCB laser engraving jig can adapt to PCBs 22 of different lengths and widths. During operation, the PCB 22 is slid in along the step 21, and the sensor 31 on the induction plate 30 is triggered after the PCB 22 slides into place, so that the position of the PCB 22 can be accurately confirmed, and then the laser engraving is performed, and the quality of the laser engraving is guaranteed. When the PCB 22 slides on the step 21, the PCB 22 will automatically become horizontal under the action of gravity, and there will be no warping, which is more efficient and the quality of the laser engraving is guaranteed. The step 21 can provide a limiting effect. The PCB 22 is suspended on the step 21, and the heat dissipation speed of the PCB 22 can also be increased. When the PCB 22 is mounted on the step 21, the front edge of the PCB 22 is completely exposed, which is convenient for workers to load and unload materials and makes work more convenient. The smoking box 40 is used to absorb the smoke from the laser engraving, and the first hole 32 and the second hole 41 are conducive to the circulation of the smoke. The air duct of the smoking box 40 is connected to the fan, which can extract the smoke in time and is very convenient to deploy.

[0031] Preferably, the limiting plate 20 is an L-shaped structure; a notch 12 is provided at the orifice position of the limiting hole 11 away from the limiting plate 20; the fixing assembly includes a first fixing member 13 and a second fixing member 14; the second fixing member 14 is limited in the notch 12; the first fixing member 13 passes through the limiting plate 20 and is fastened together with the second fixing member 14. The limiting plate 20 with an L-shaped structure is conveniently assembled on the bottom plate 10. The notch 12 can limit the second fixing member 14 to prevent it from moving. The first fixing member 13 is fastened to the second fastener, thereby fastening the limiting plate 20 and the bottom plate 10 together.

[0032] Preferably, the first fixing member 13 is a screw, and the second fixing member 14 is a nut.

[0033] Preferably, the nut is one of a square nut, a hexagonal nut and an octagonal nut.

[0034] Preferably, the sensor 31 is a photoelectric sensor 31 or a pressure sensor 31. The photoelectric sensor 31 is a device that converts an optical signal into an electrical signal. The pressure sensor 31 (Pressure Transducer) is a device or apparatus that can sense a pressure signal and convert the pressure signal into an available output electrical signal according to a certain rule. The sensor 31 can be used to sense the position of the PCB 22. Only when the PCB 22 is completely in place can the laser engraving work be carried out, and the quality of the laser engraving is guaranteed.

[0035] Preferably, there are two sensors 31, and the two sensors 31 are in the same plane. The cooperation of the two sensors 31 can confirm that the edge of the PCB 22 is flush and not tilted, which guarantees the quality of laser engraving. Embodiment 2

[0036] Please refer to Figure 3As shown, the present application provides a laser engraving machine, including the PCB laser engraving jig; the PCB laser engraving jig is arranged on the top plate 51 of the frame 50; the top plate 51 is also provided with a display 52 and a safety grating 53; the safety grating 53 is arranged on the side of the PCB laser engraving jig close to the worker; the upper side of the PCB laser engraving jig is provided with a laser head 54 and a detection camera (not shown in the figure). An industrial computer generally refers to an industrial control computer. The display 52, the safety grating 53, the laser head 54, and the detection camera (not shown in the figure) are connected to the industrial computer. After PCB22 is precisely in place, the industrial computer sends a laser engraving instruction, and the laser head 54 of the laser performs laser engraving on PCB22; after the laser engraving is completed, the detection camera (not shown in the figure) takes a photo of PCB22 for inspection, and the industrial computer processes the information from the detection camera (not shown in the figure), and the processed information is sent to the display 52 for display, so as to realize integrated laser engraving and detection, and the work efficiency is higher. The safety grating 53 senses the worker's hand, and the industrial computer receives the information of the safety grating 53, and does not perform laser engraving, so the equipment is highly safe. The detection camera is preferably a CCD camera.

[0037] Preferably, the top plate 51 is further provided with a lifting module 56, and the laser head 54 is provided on a mounting frame 57 of the lifting module 56, and the mounting frame 57 has legs 58, and the legs 58 can be supported on the top plate 51. The lifting module 56 is preferably a hand-cranked linear module. The legs 58 ensure that the laser head 54 is always at a certain distance from the PCB laser engraving machine, which is conducive to protecting the laser head 54.

[0038] In summary, the design focus of the utility model is that the limit plate 20 is fixed to the bottom plate 10 with an adjustable spacing through a fixing component, and the sensing plate 30 provided with a sensor 31 is arranged on the limit plate 20. The spacing between the limit plates 20 is adjustable, which can adapt to the PCB 22 of different widths, and the accuracy is guaranteed. In addition, when the PCB 22 is loaded, it will automatically become a horizontal state due to gravity, and the working efficiency is higher.

[0039] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A PCB laser engraving jig, characterized by: It comprises a bottom plate and a limiting plate arranged on the bottom plate; a narrow and long limiting hole is formed through the bottom plate; The fixing component passes through the limiting plate and the limiting hole, and fixes the limiting plate at the position of the limiting hole with an adjustable spacing; The inner edge of the limit plate is provided with a step; the limit plate is provided with a sensing plate, and the sensing plate is provided with at least one sensor and a plurality of first holes; a smoking box is provided on the rear side of the sensing plate, and the smoking box is provided with a second hole; The PCB is suspended on the step, and the PCB can trigger the sensor along the step.

2. The PCB laser engraving jig according to claim 1, characterized in that: The limiting plate is an L-shaped structure; a notch is provided at the position of the limiting hole away from the hole opening of the limiting plate; the fixing assembly includes a first fixing member and a second fixing member; the second fixing member is limited in the notch; the first fixing member passes through the limiting plate and is fastened together with the second fixing member.

3. The PCB laser engraving jig according to claim 2, characterized in that: The first fixing member is a screw, and the second fixing member is a nut.

4. The PCB laser engraving jig according to claim 3, characterized in that: The nut is one of a square nut, a hexagonal nut and an octagonal nut.

5. The PCB laser engraving jig according to claim 1, characterized in that: The sensor is a photoelectric sensor or a pressure sensor.

6. The PCB laser engraving jig according to claim 1 or 5, characterized in that: There are two sensors, and the two sensors are located in the same plane.

7. A laser engraving machine, characterized in that: It comprises the PCB laser engraving jig as described in any one of claims 1 to 6; the PCB laser engraving jig is arranged on the top plate of the frame; the top plate is also provided with a display and a safety grating; the safety grating is arranged on the side of the PCB laser engraving jig close to the worker; the upper side of the PCB laser engraving jig is provided with a laser head and a detection camera.

8. The laser engraving machine according to claim 7, characterized in that: The top plate is also provided with a lifting module, and the laser head is arranged on a mounting frame of the lifting module, and the mounting frame has legs, and the legs can be supported on the top plate.

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