A PCB laser window opening device

Abstract

The invention discloses a PCB laser window opening device. A first loading and unloading mechanism drives a first loading and unloading platform to reciprocate between a first loading and unloading station and a first processing station. A second loading and unloading mechanism drives a second loading and unloading platform to reciprocate between a second loading and unloading station and a second processing station. The alternate operation of the first loading and unloading platform and the second loading and unloading platform reduces the waiting time of the PCB laser window opening device in performing laser window opening work. The laser window opening mechanism drives a laser to reciprocate between a first processing station and a second processing station, thereby realizing efficient use of the laser. The lens cleaning mechanism cleans the laser passing through the lens cleaning station, so that the laser lens after each laser window opening work is completed can be effectively cleaned in the process of moving to the next processing station, thereby ensuring the stability of the light transmittance of the laser lens, and further ensuring the processing accuracy of the PCB board window opening.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board processing equipment, and in particular to a PCB laser window opening device. Background Art

[0002] Circuit board, or PCB (Printed Circuit Board), is an indispensable component in modern electronic devices, carrying the electrical connection and signal transmission between electronic components. In the process of circuit board manufacturing, coating the surface of the board with a solder mask to protect the circuit and prevent short circuit of component pins is an important key step. The solder mask is usually composed of a layer of solder mask ink (commonly known as green oil in the industry), which is coated on the etched circuit board through a specific process. However, in order to meet specific application requirements, such as heat dissipation, contact, etc., it is necessary to remove the solder mask at certain welding positions. This step is called windowing.

[0003] For example, the utility model patent with patent authorization announcement number: CN214256767U discloses a solder resist window opening device for performing solder resist window opening processing on a circuit board. The solder resist window opening device includes: a frame, a laser main body mechanism and a feeding mechanism. The frame is provided with a processing station; the laser main body mechanism moves the frame and is located above the processing station. The laser main body mechanism includes a plurality of laser processing heads, and the light outlet of the laser processing head is arranged toward the processing station; the feeding mechanism is arranged on the frame, and the feeding mechanism is used to transport the circuit board, thereby improving the solder resist window opening efficiency of the circuit board and improving the effectiveness efficiency of the circuit board.

[0004] Based on the search of the above patent authorization announcement number and the shortcomings found therein:

[0005] During the operation of existing PCB board laser window opening equipment, the laser cutting action will generate dust on the surface of the PCB board. This dust tends to spread around. During the diffusion process, some dust will inevitably adhere to the lens at the laser light outlet. The accumulation of dust on the lens will cause the light transmittance of the lens to decrease, causing the laser effect emitted by the laser through the lens to deviate from the expected laser effect, thereby affecting the processing accuracy of the PCB board window opening. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a PCB laser window opening device to solve the problem that during the operation of the existing PCB board laser window opening equipment, the laser cutting action will generate dust on the surface of the PCB board, and the dust has a tendency to spread around. During the diffusion process, it is inevitable that some dust will adhere to the lens of the laser light outlet. The dust accumulation on the lens will cause the light transmittance of the lens to decrease, so that the laser effect emitted by the laser through the lens deviates from the expected laser effect, thereby affecting the technical problem of the processing accuracy of the PCB board window opening.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] An embodiment of the present invention provides a PCB laser window opening device, comprising: a machine base, on which a first loading and unloading station, a second loading and unloading station, a first processing station, a lens cleaning station and a second processing station are arranged, the lens cleaning station is located between the first processing station and the second processing station, and the lens cleaning station, the first processing station and the second processing station are arranged on the same straight line;

[0009] A first loading and unloading mechanism, the first loading and unloading mechanism comprising a first loading and unloading platform, the first loading and unloading platform reciprocating between the first loading and unloading station and the first processing station;

[0010] A second loading and unloading mechanism, the second loading and unloading mechanism comprising a second loading and unloading platform, the second loading and unloading platform reciprocating between the second loading and unloading station and the second processing station;

[0011] A laser window opening mechanism, wherein the laser window opening mechanism comprises a laser module with a light emitting direction facing downward, the laser module comprises a plurality of lasers with light emitting ports facing downward, and the laser module reciprocates above the first processing station, the lens cleaning station, and the second processing station;

[0012] A lens cleaning mechanism, the lens cleaning mechanism comprising a first mounting frame arranged on the machine base, the first mounting frame being provided with a cleaning assembly located above the lens cleaning station, the cleaning assembly being used for cleaning the laser lens;

[0013] The laser module is used to perform a preset laser window opening operation on the PCB board located at the first processing station or the second processing station. When the laser module passes through the lens cleaning station, the cleaning component contacts the laser lens to clean it.

[0014] Furthermore, the first mounting frame includes a crossbeam placed horizontally above the machine base, a side of the crossbeam close to the laser window opening mechanism is horizontally provided with an extension plate in the direction of the lens cleaning station, and the cleaning assembly is arranged on the upper side of the extension plate;

[0015] Wherein, the cleaning component includes a cleaning piece, and the cleaning piece includes a soft brush and a lens-wiping cloth. The soft brush and the lens-wiping cloth are alternately and evenly arranged on the extension plate along the movement path of the laser. The coverage area of ​​the soft brush and the lens-wiping cloth is greater than or equal to the area of ​​the laser lens. When the laser passes over the lens cleaning station, the soft brush and the lens-wiping cloth contact the laser lens in turn to clean it.

[0016] Furthermore, the extension plate is provided with a plurality of vertical grooves, and the cleaning member is slidably installed in the vertical grooves; a plurality of horizontal grooves are provided on a side of the crossbeam close to the laser window opening mechanism, and a cleaning trigger slider is provided in the horizontal groove, and the cleaning trigger slider is slidably installed in the horizontal groove in the horizontal direction, and the height of the cleaning trigger slider is the same as the height of the mounting plate, and the laser module is arranged on the mounting plate; wherein the cleaning trigger slider is arranged in a one-to-one correspondence with the cleaning member, and a linkage component connected between the cleaning trigger slider and the corresponding cleaning member is arranged in the crossbeam and the extension plate;

[0017] When the lens cleaning mechanism is in a first state, the cleaning trigger slider extends out of the horizontal groove, the cleaning trigger slider is separated from the mounting plate, and the movement paths of the cleaning trigger slider and the mounting plate overlap, and the cleaning member is completely received in the vertical groove; when the lens cleaning mechanism is in a second state, the cleaning trigger slider is squeezed by the mounting plate to penetrate into the horizontal groove, and the cleaning trigger slider drives the cleaning member to extend upward from the horizontal groove through the linkage assembly, and the movement paths of the cleaning member and the laser lens overlap.

[0018] Furthermore, a first return spring is provided in the vertical groove, the first return spring is connected between the cleaning member and the extension plate, and the first return spring is used to provide an elastic force for the cleaning member to extend out of the vertical groove; a second return spring is provided in the horizontal groove, the second return spring is connected between the cleaning trigger slider and the cross beam, and the second return spring is used to provide an elastic force for the cleaning trigger slider to extend out of the horizontal groove; wherein the elastic force of the second return spring is greater than the elastic force of the first return spring.

[0019] Furthermore, an active cavity is provided between the vertical groove and the horizontal groove, and the linkage assembly includes a vertical connecting rod and a horizontal connecting rod arranged in the active cavity, the upper end of the vertical connecting rod is connected to the cleaning trigger slider, the end of the horizontal connecting rod close to the laser window opening mechanism is connected to the cleaning member, the lower end of the vertical connecting rod is provided with a first guide slope, and the end of the horizontal connecting rod away from the laser window opening mechanism is provided with a second guide slope corresponding to the first guide slope, and the first guide slope is in contact with the second guide slope; wherein, the first guide slope is an inclined surface which is gradually inclined from top to bottom toward a direction away from the laser window opening mechanism.

[0020] Furthermore, a dust cover is provided at the notch of the vertical slot, the dust cover is hinged to the extension plate, a return torsion spring is provided at the hinge between the dust cover and the extension plate, and the return torsion spring is used to provide elastic force for the dust cover to rotate to open the notch of the vertical slot;

[0021] A through slot is provided on one side of the crossbeam close to the laser window opening mechanism, the through slot is inwardly connected to the active cavity, a shift rod is provided in the through slot, the shift rod is slidably installed in the through slot along a horizontal direction, and the shift rod is connected to the vertical connecting rod in the active cavity;

[0022] When the lens cleaning mechanism is in a first state, the shift rod abuts against the upper side of the dust cover to limit the rotation of the dust cover; when the lens cleaning mechanism is in a second state, the shift rod moves horizontally along with the vertical connecting rod toward the direction of the cross beam to disengage from the area directly above the dust cover to release the rotation limit of the dust cover.

[0023] Furthermore, the first loading and unloading platform includes a first horizontal moving plate, a first height adjustment component, and a first load-bearing positioning plate. The first load-bearing positioning plate is connected to the upper side of the first horizontal moving plate through the first height adjustment component. The first horizontal moving plate is used to drive the first height adjustment component and the first load-bearing positioning plate to reciprocate between the first loading and unloading station and the first processing station. The first height adjustment component is used to adjust the height difference between the first load-bearing positioning plate and the first horizontal moving plate. The first load-bearing positioning plate is used to carry and position the PCB board.

[0024] Further, the first height adjustment assembly includes: a first vertical guide rail and a first vertical slider, the first vertical slider being slidably connected to the first vertical guide rail along a vertical direction; wherein the first vertical guide rail is arranged on the upper side of the first horizontal movable plate, and the first vertical slider is arranged on the lower side of the first bearing positioning plate, or the first vertical guide rail is arranged on the lower side of the first bearing positioning plate, and the first vertical slider is arranged on the upper side of the first horizontal movable plate;

[0025] The first height adjustment assembly further includes: a first driving cylinder, a first tilting slider, and a second tilting slider, wherein the first tilting slider is slidably connected to the upper side of the first horizontal moving plate, the second tilting slider is fixedly connected to the lower side of the first bearing positioning plate, the fixed end of the first driving cylinder is connected to the first horizontal moving plate, and the telescopic end of the first driving cylinder is connected to the first tilting slider;

[0026] Among them, a first inclined surface with a gradually changing height is provided on the upper side of the first inclined slider, and a second inclined surface corresponding to and fitting the first inclined surface is provided on the lower side of the second inclined slider. The first inclined surface is slidably connected with the second inclined surface, and the first driving cylinder is used to drive the first inclined slider to move in the height change direction of the first inclined surface, so that the second inclined slider drives the first bearing positioning plate to lift or lower.

[0027] Furthermore, the first inclined slider is arranged at the middle position of the first horizontal movable plate, the second inclined slider is arranged at the middle position of the first load-bearing positioning plate, and the first vertical guide rail and the first vertical slider are respectively arranged at the four corners of the first horizontal movable plate and the first load-bearing positioning plate.

[0028] Furthermore, a plurality of adsorption holes are arranged on the upper side of the first bearing and positioning plate, a negative pressure chamber connected to the adsorption holes is arranged inside the first bearing and positioning plate, and the negative pressure chamber is connected to the vacuum pumping device through an air pipe.

[0029] The PCB laser window opening device of the present invention reduces the waiting time of the PCB laser window opening device in performing laser window opening work by alternating operation of the first loading and unloading platform and the second loading and unloading platform; drives the laser to reciprocate between the first processing station and the second processing station by the laser window opening mechanism, thereby realizing efficient use of the laser; cleans the laser passing through the lens cleaning station by the lens cleaning mechanism, so that the laser lens after each laser window opening work is completed can be effectively cleaned in the process of moving to the next processing station, so that the dust attached to the laser lens is removed, thereby ensuring the stability of the light transmittance of the laser lens, and further ensuring the processing accuracy of the PCB board window opening.

[0030] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a side view of a PCB laser window opening device according to an embodiment of the present invention;

[0032] Figure 2 A top view of a PCB laser window opening device according to an embodiment of the present invention;

[0033] Figure 3 This is a three-dimensional view of the first loading and unloading platform in the PCB laser window opening device according to an embodiment of the present invention;

[0034] Figure 4 This is a first state view of the first loading and unloading platform in the PCB laser window opening device according to an embodiment of the present invention;

[0035] Figure 5 This is a second state view of the first loading and unloading platform in the PCB laser window opening device according to an embodiment of the present invention;

[0036] Figure 6 It is a schematic diagram of the coordination structure of the laser window opening mechanism and the lens cleaning mechanism when the mounting plate in the PCB laser window opening device according to an embodiment of the present invention is located at the first loading and unloading station or the second loading and unloading station;

[0037] Figure 7 It is a schematic diagram of the coordination structure of the laser window opening mechanism and the lens cleaning mechanism when the mounting plate in the PCB laser window opening device according to an embodiment of the present invention is located at the lens cleaning station;

[0038] Figure 8 This is a schematic diagram of the structure of the PCB laser window opening device when the dust cover is closed in the embodiment of the present invention;

[0039] Fig. 9 This is a schematic diagram of the structure when the dust cover is opened in the PCB laser window opening device according to an embodiment of the present invention;

[0040] Fig.10 This is a schematic diagram of the structure when the mounting plate in the PCB laser window opening device according to an embodiment of the present invention passes through the lens cleaning station;

[0041] Fig.11 This is a first state view of the lens cleaning mechanism in the PCB laser window opening device according to an embodiment of the present invention;

[0042] Fig.12 This is a second state view of the lens cleaning mechanism in the PCB laser window opening device according to an embodiment of the present invention.

[0043] Description of reference numerals:

[0044] 1. Machine base; 2. First loading and unloading mechanism; 21. First loading and unloading platform; 211. First horizontal moving plate; 212. First height adjustment assembly; 2121. First vertical guide rail; 2122. First vertical slider; 2123. First driving cylinder; 2124. First inclined slider; 2125. Second inclined slider; 213. First bearing positioning plate; 22. First horizontal moving module; 3. Second loading and unloading mechanism; 31. Second loading and unloading platform; 32. Second horizontal moving module; 4. Laser window opening mechanism; 41 , second mounting frame; 42, third horizontal moving module; 43, mounting plate; 44, laser module; 441, laser; 5, lens cleaning mechanism; 51, first mounting frame; 511, crossbeam; 512, extension plate; 52, cleaning piece; 521, brush; 522, lens cleaning cloth; 53, cleaning trigger slider; 54, first return spring; 55, second return spring; 56, vertical connecting rod; 561, first guide slope; 57, horizontal connecting rod; 571, second guide slope; 58, dust cover; 59, gear lever. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0047] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “resin”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0052] Please see attached Figure 1 to Figure 2The embodiment of the present invention provides a PCB laser window opening device, comprising: a machine base 1, on which a first loading and unloading station, a second loading and unloading station, a first processing station, a lens cleaning station and a second processing station are arranged, the lens cleaning station is located between the first processing station and the second processing station, and the lens cleaning station, the first processing station and the second processing station are arranged on the same straight line; a first loading and unloading mechanism 2, the first loading and unloading mechanism 2 includes a first loading and unloading platform 21, and the first loading and unloading platform 21 reciprocates between the first loading and unloading station and the first processing station; a second loading and unloading mechanism 3, the second loading and unloading mechanism 3 includes a second loading and unloading platform 31, and the second loading and unloading platform 31 reciprocates between the second loading and unloading station and the second processing station; a laser window opening mechanism 4, the laser window opening mechanism 4 includes a light emitting direction downward A laser module 44, the laser module 44 includes a plurality of lasers 441 with light outlets facing downwards, the laser module 44 reciprocates with the movable part of the third horizontal movable module 42 above the first processing station, the lens cleaning station and the second processing station; a lens cleaning mechanism 5, the lens cleaning mechanism 5 includes a first mounting frame 51 arranged on the machine base 1, the first mounting frame 51 is provided with a cleaning component located above the lens cleaning station, and the cleaning component is used to clean the laser 441 lens; wherein, the first loading and unloading platform 21 and the second loading and unloading platform 31 are both used to carry and position the PCB board, the laser window opening mechanism 4 is used to perform a preset laser window opening operation on the PCB board located at the first processing station or the second processing station, and when the laser module 44 passes through the lens cleaning station, the cleaning component contacts the laser 441 lens to clean it.

[0053] Specifically, the first loading and unloading station and the second loading and unloading station are located on the same side of the machine base 1, and the distance from the first loading and unloading station to the first processing station is equal to the distance from the second loading and unloading station to the second processing station. Specifically, the first loading and unloading mechanism 2 includes a first horizontal moving module 22 disposed between the first loading and unloading station and the first processing station, the stator portion of the first horizontal moving module 22 is fixed to the machine base 1, the first loading and unloading platform 21 is connected to the moving portion of the first horizontal moving module 22, and the first loading and unloading platform 21 reciprocates between the first loading and unloading station and the first processing station along with the moving portion of the first horizontal moving module 22. Specifically, the second loading and unloading mechanism 3 includes a second horizontal moving module 32 disposed between the second loading and unloading station and the second processing station, the stator portion of the second horizontal moving module 32 is fixed to the machine base 1, the second loading and unloading platform 31 is connected to the movable portion of the second horizontal moving module 32, and the second loading and unloading platform 31 reciprocates between the second loading and unloading station and the second processing station with the movable portion of the second horizontal moving module 32. Specifically, the laser window opening mechanism 4 includes a second mounting frame 41 mounted on the machine base 1, the second mounting frame 41 is provided with a third horizontal moving module 42 spanning over the first processing station, the lens cleaning station, and the second processing station, the stator portion of the third horizontal moving module 42 is fixed to the mounting frame, the movable portion of the third horizontal moving module 42 is fixed with a mounting plate 43, and the laser module is provided on the mounting plate 43.

[0054] In this embodiment, when the first loading and unloading platform 21 sends the PCB board to the first processing station for window opening, the second loading and unloading platform 31 can simultaneously send another PCB board with completed window opening to the second loading and unloading station to wait for unloading and reloading. After the PCB board on the first loading and unloading platform 21 is processed, the first loading and unloading platform 21 returns to the first loading and unloading station to take out the next PCB board. At the same time, the second loading and unloading platform 31 sends the waiting PCB board to the second processing station for window opening. When one station is performing laser window opening processing, another station can perform loading and unloading operations at the same time. This alternating loading method significantly improves the overall processing speed and production efficiency of the equipment. At the same time, here, taking the laser 441 being located above the first processing station to perform the laser windowing operation as an example, when the laser 441 above the first processing station completes the laser windowing operation task, the third horizontal moving module 42 drives the laser 441 to pass through the lens cleaning station to reach the second processing station. When the laser 441 passes above the lens cleaning station, it will contact the cleaning component of the lens cleaning mechanism 5 to achieve the purpose of automatically cleaning the lens, so that the lens of the laser 441 is in a clean state when it reaches the second processing station, ensuring that the laser 441 always maintains a good working state, improving the laser effect and windowing accuracy. Optionally, the first horizontal moving module 22, the second horizontal moving module 32, and the third horizontal moving module 42 in this embodiment are all linear motors. Optionally, a PCB laser window opening device includes a laser window opening mechanism 4 and two lens cleaning mechanisms 5, and the first mounting frames 51 of the two lens cleaning mechanisms 5 are respectively arranged on both sides of the second mounting frame 41. In this embodiment, the laser module 44 of the laser window opening mechanism 4 includes two rows of lasers 441, and the arrangement direction of the two rows of lasers 441 is the same as the movement direction of the mounting plate 43, so that the two lens cleaning mechanisms 5 correspond to the two rows of lasers 441 in the laser module 44 respectively.

[0055] For further information, see Figures 3 to 5 The first loading and unloading platform 21 includes a first horizontal moving plate 211, a first height adjustment component 212, and a first bearing and positioning plate 213. The first horizontal moving plate 211 is connected to the upper side of the moving part of the first horizontal moving module 22. The first bearing and positioning plate 213 is connected to the upper side of the first horizontal moving plate 211 through the first height adjustment component 212. The first height adjustment component 212 is used to adjust the height difference between the first bearing and positioning plate 213 and the first horizontal moving plate 211. The first bearing and positioning plate 213 is used to carry and position the PCB board. It should be explained that the second loading and unloading platform 31 has the same structure as the first loading and unloading platform 21. In this embodiment, according to the thickness and processing requirements of the PCB board, the first height adjustment component 212 can adjust the height of the first bearing and positioning plate 213, thereby changing the focal length of the laser irradiation.

[0056] Furthermore, the first height adjustment component 212 includes: a first vertical guide rail 2121 and a first vertical slider 2122, and the first vertical slider 2122 is slidably connected to the first vertical guide rail 2121 along the vertical direction; wherein the first vertical guide rail 2121 is arranged on the upper side of the first horizontal movable plate 211, and the first vertical slider 2122 is arranged on the lower side of the first bearing positioning plate 213, or, the first vertical guide rail 2121 is arranged on the lower side of the first bearing positioning plate 213, and the first vertical slider 2122 is arranged on the upper side of the first horizontal movable plate 211; the first height adjustment component 212 also includes: a first driving cylinder 2123, a first inclined slider 2124, and a second inclined slider 2125, and the first inclined slider 2124 is slidably connected to the first horizontal movable plate 213. On the upper side of a horizontal moving plate 211, the second inclined slider 2125 is fixedly connected to the lower side of the first bearing positioning plate 213, the fixed end of the first driving cylinder 2123 is connected to the first horizontal moving plate 211, and the telescopic end of the first driving cylinder 2123 is connected to the first inclined slider 2124; wherein, the upper side of the first inclined slider 2124 is provided with a first inclined surface with a gradually changing height, and the lower side of the second inclined slider 2125 is provided with a second inclined surface corresponding to and fitting the first inclined surface, the first inclined surface is slidably connected to the second inclined surface, and the first driving cylinder 2123 is used to drive the first inclined slider 2124 to move in the height change direction of the first inclined surface, so that the second inclined slider 2125 drives the first bearing positioning plate 213 to lift or lower.

[0057] It can be understood that the sliding connection between the first vertical guide rail 2121 and the first vertical slider 2122 in this embodiment provides the first bearing positioning plate 213 with a degree of freedom of movement in the vertical direction, and the cooperation between the first driving cylinder 2123, the first inclined slider 2124 and the second inclined slider 2125 realizes the precise adjustment of the height of the first bearing positioning plate 213. In the initial state, the telescopic end of the first driving cylinder 2123 is in a retracted state, the first inclined slider 2124 and the second inclined slider 2125 remain relatively still through the contact of the inclined surfaces, and the first bearing positioning plate 213 is at the initial height position. When the height of the first bearing positioning plate 213 needs to be adjusted, the control system starts the first driving cylinder 2123, and the telescopic end of the first driving cylinder 2123 begins to extend and retract, driving the first inclined slider 2124 to move in the height change direction of the first inclined surface. Since the first inclined surface and the second inclined surface correspond to each other and are slidably connected, the movement of the first inclined slider 2124 will be converted into the lifting or lowering movement of the second inclined slider 2125 and the first bearing positioning plate 213. When the first bearing positioning plate 213 reaches the target height, the control system stops the operation of the first driving cylinder 2123 and locks its position to keep the first bearing positioning plate 213 stable.

[0058] Specifically, the first inclined slider 2124 is arranged at the middle position of the first horizontal movable plate 211, the second inclined slider 2125 is arranged at the middle position of the first bearing positioning plate 213, and the first vertical guide rail 2121 and the first vertical slider 2122 are arranged at the four corners of the first horizontal movable plate 211 and the first bearing positioning plate 213, respectively. In this embodiment, by arranging the first inclined slider 2124 and the second inclined slider 2125 at the middle position of the first horizontal movable plate 211 and the first bearing positioning plate 213, the first bearing positioning plate 213 can be more effectively lifted or lowered. At the same time, the design of the first vertical guide rail 2121 and the first vertical slider 2122 at the four corners provides stable support to prevent the first bearing positioning plate 213 from tilting or shaking when adjusting the height.

[0059] Specifically, a plurality of adsorption holes are provided on the upper side of the first bearing and positioning plate 213, and a negative pressure cavity connected to the adsorption holes is provided inside the first bearing and positioning plate 213, and the negative pressure cavity is connected to the vacuum pumping device through an air pipe. When the vacuum pumping device is started, the air in the negative pressure cavity is pumped out through the air pipe to form a negative pressure environment, and due to the effect of atmospheric pressure, the adsorption holes on the first bearing and positioning plate 213 will generate an adsorption force on the PCB board, so that the PCB board is closely attached thereto.

[0060] For further information, see Figures 6 to 12 The first mounting frame 51 includes a crossbeam 511 horizontally placed above the machine base 1, and an extension plate 512 is horizontally arranged on one side of the crossbeam 511 close to the laser window opening mechanism 4 in the direction of the lens cleaning station, and a cleaning component is arranged on the upper side of the extension plate 512; wherein, the cleaning component includes a cleaning member 52, and the cleaning member 52 includes a soft brush 521 and a lens wiping cloth 522, and the soft brush 521 and the lens wiping cloth 522 are alternately and evenly arranged on the extension plate 512 along the movement path of the laser 441, and the coverage area of ​​the soft brush 521 and the lens wiping cloth 522 is greater than or equal to the area of ​​the laser 441 lens, and when the laser 441 passes above the lens cleaning station, the soft brush 521 and the lens wiping cloth 522 contact the laser 441 lens in turn to clean it. It is understandable that the soft brush 521 contacts the lens surface with its soft bristles and removes dust and stains on the lens surface by friction, while the lens cleaning cloth 522 further wipes and absorbs residues on the lens surface by its fine fiber structure and good adsorption performance to ensure the cleanliness of the lens. At the same time, by alternately arranging the soft brush 521 and the lens cleaning cloth 522, the advantages of both can be fully utilized to achieve a better cleaning effect.

[0061] Furthermore, in order to prevent the cleaning member 52 from being contaminated by dust in the air when not in operation, a plurality of vertical grooves are provided on the extension plate 512 in the present embodiment, and the cleaning member 52 is slidably installed in the vertical grooves along the vertical direction; a plurality of horizontal grooves are provided on the side of the crossbeam 511 close to the laser window opening mechanism 4, and a cleaning trigger slider 53 is provided in the horizontal groove, and the cleaning trigger slider 53 is slidably installed in the horizontal groove along the horizontal direction, and the height of the cleaning trigger slider 53 is the same as the height of the mounting plate 43; wherein the cleaning trigger slider 53 is arranged one-to-one with the cleaning member 52, and a connection to the cleaning member 52 is provided in the crossbeam 511 and the extension plate 512 A linkage assembly between the trigger slider 53 and the corresponding cleaning member 52; when the lens cleaning mechanism 5 is in a first state, the cleaning trigger slider 53 extends out of the horizontal slot, the cleaning trigger slider 53 is separated from the mounting plate 43, and the movement paths of the cleaning trigger slider 53 and the mounting plate 43 overlap, and the cleaning member 52 is completely received in the vertical slot; when the lens cleaning mechanism 5 is in a second state, the cleaning trigger slider 53 is squeezed by the mounting plate 43 to penetrate into the horizontal slot, and the cleaning trigger slider 53 drives the cleaning member 52 to extend upward out of the horizontal slot through the linkage assembly, and the movement paths of the cleaning member 52 and the laser 441 lens overlap.

[0062] It should be explained that the first state of the lens cleaning mechanism 5 is the initial state, at which the cleaning trigger slider 53 extends out of the horizontal groove and does not contact the mounting plate 43, the cleaning member 52 is completely received in the vertical groove and does not contact the laser 441 lens, and the lens cleaning mechanism 5 is in a non-working state. When the laser window opening mechanism 4 drives the mounting plate 43 to approach the cleaning trigger slider 53, the mounting plate 43 and the cleaning trigger slider 53 come into contact and are squeezed. At this time, the cleaning trigger slider 53 slides inward along the horizontal groove after being squeezed, so that the lens cleaning mechanism 5 reaches the second state. The cleaning trigger slider 53 in the second state drives the cleaning member 52 to slide upward along the vertical groove through the linkage assembly, and extends to a position that coincides with the motion path of the laser 441 lens. At this time, as the laser 441 moves, the lens contacts the cleaning member 52 to achieve the cleaning action.

[0063] Furthermore, a first return spring 54 is provided in the vertical groove, the first return spring 54 is connected between the cleaning member 52 and the extension plate 512, and the first return spring 54 is used to provide an elastic force for the cleaning member 52 to extend out of the vertical groove; a second return spring 55 is provided in the horizontal groove, the second return spring 55 is connected between the cleaning trigger slider 53 and the cross beam 511, and the second return spring 55 is used to provide an elastic force for the cleaning trigger slider 53 to extend out of the horizontal groove; wherein, the elastic force of the second return spring 55 is greater than the elastic force of the first return spring 54.

[0064] Specifically, an active cavity is provided between the vertical groove and the horizontal groove, and the linkage assembly includes a vertical connecting rod 56 and a horizontal connecting rod 57 which are arranged in the active cavity, the upper end of the vertical connecting rod 56 is connected to the cleaning trigger slider 53, and the end of the horizontal connecting rod 57 close to the laser window opening mechanism 4 is connected to the cleaning member 52, the lower end of the vertical connecting rod 56 is provided with a first guide slope 561, and the end of the horizontal connecting rod 57 away from the laser window opening mechanism 4 is provided with a second guide slope 571 corresponding to the first guide slope 561, and the first guide slope 561 is abutted against the second guide slope 571; wherein, the first guide slope 561 is an inclined surface which is gradually inclined from top to bottom toward a direction away from the laser window opening mechanism 4.

[0065] In this embodiment, when the mounting plate 43 contacts and squeezes the cleaning trigger slider 53, the cleaning trigger slider 53 overcomes the elastic force of the second return spring 55 and slides inward along the horizontal groove. At the same time, the cleaning trigger slider 53 drives the vertical connecting rod 56 to move synchronously in the direction away from the laser window opening mechanism 4. Then, under the cooperation of the first guide bevel 561 and the second guide bevel 571 and the elastic force of the first return spring 54, the cleaning member 52 extends to a position that coincides with the movement path of the laser 441 lens. As the laser 441 moves, the lens contacts the cleaning member 52 to achieve a cleaning action. After cleaning is completed, as the mounting plate 43 continues to move, the contact between the mounting plate 43 and the cleaning trigger slider 53 is released. At this time, the elastic force of the second return spring 55 is greater than the elastic force of the first return spring 54. Therefore, the cleaning trigger slider 53 first drives the cleaning member 52 to start resetting through the linkage assembly, and then, with the cooperation of the first guide slope 561 and the second guide slope 571, the vertical connecting rod 56 presses the horizontal connecting rod 57 to move it downward. Driven by the horizontal connecting rod 57, the cleaning member 52 slides downward along the vertical groove back into the vertical groove, and the cleaning trigger slider 53 slides along the horizontal groove under the elastic force of the second return spring 55 to extend out of the horizontal groove.

[0066] Furthermore, although the above embodiment realizes automatic cleaning and resetting of the lens, in the non-working state, the cleaning member 52 and the notch of the vertical groove are exposed to the outside and are easily contaminated by dust, particles, etc., which affects the cleaning effect and the service life of the cleaning member 52. Therefore, in this embodiment, a dust cover 58 is provided at the notch of the vertical groove, and the dust cover 58 is hinged to the extension plate 512. A return torsion spring is provided at the hinge of the dust cover 58 and the extension plate 512, and the return torsion spring is used to provide elastic force for the dust cover 58 to rotate to open the notch of the vertical groove; a through groove is provided on the side of the beam 511 close to the laser window opening mechanism 4, and the through groove is connected to the active cavity inwardly, and a shift rod 59 is provided in the through groove, and the shift rod 59 is slidably installed in the through groove along the horizontal direction, and the shift rod 59 is connected to the vertical connecting rod 56 in the active cavity; when the lens cleaning mechanism 5 is in the first state, the shift rod 59 abuts against the upper side of the dust cover 58 to limit the rotation of the dust cover 58; when the lens cleaning mechanism 5 is in the second state, the shift rod 59 moves horizontally with the vertical connecting rod 56 toward the beam 511 to disengage from the area directly above the dust cover 58, so that the rotation limit of the dust cover 58 is released.

[0067] It is understandable that in this embodiment, the dust cover 58 is hinged to the extension plate 512, and the lever 59 abuts against the upper side of the dust cover 58, so that the dust cover 58 remains closed in the non-working state, covering the notch of the vertical slot to prevent dust from entering. When cleaning is required, the vertical connecting rod 56 drives the lever 59 to move, releases the rotation limit of the dust cover 58, and the dust cover 58 can be rotated open under the elastic force of the reset torsion spring. After cleaning is completed, the cleaning member 52 and the cleaning trigger slider 53 return to the initial position under the action of the reset spring, and the dust cover 58 rotates and closes under the abutment of the lever 59, re-covering the notch of the vertical slot to restore the dust protection state.

[0068] The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but it does not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A PCB laser window opening device, characterized in that: include: A machine base, wherein a first loading and unloading station, a second loading and unloading station, a first processing station, a lens cleaning station and a second processing station are arranged on the machine base, wherein the lens cleaning station is located between the first processing station and the second processing station, and the lens cleaning station, the first processing station and the second processing station are arranged on the same straight line; A first loading and unloading mechanism, the first loading and unloading mechanism comprising a first loading and unloading platform, the first loading and unloading platform reciprocating between the first loading and unloading station and the first processing station; A second loading and unloading mechanism, the second loading and unloading mechanism comprising a second loading and unloading platform, the second loading and unloading platform reciprocating between the second loading and unloading station and the second processing station; A laser window opening mechanism, wherein the laser window opening mechanism comprises a laser module with a light emitting direction facing downward, the laser module comprises a plurality of lasers with light emitting ports facing downward, and the laser module reciprocates above the first processing station, the lens cleaning station, and the second processing station; A lens cleaning mechanism, the lens cleaning mechanism comprising a first mounting frame arranged on the machine base, the first mounting frame being provided with a cleaning assembly located above the lens cleaning station, the cleaning assembly being used for cleaning the laser lens; Wherein, the laser module is used to perform a preset laser window opening operation on the PCB board located at the first processing station or the second processing station, and when the laser module passes through the lens cleaning station, the cleaning component contacts the laser lens to clean it; The first mounting frame includes a crossbeam placed horizontally above the machine base, a side of the crossbeam close to the laser window opening mechanism is horizontally provided with an extension plate in the direction of the lens cleaning station, and the cleaning assembly is arranged on the upper side of the extension plate; The cleaning assembly includes a cleaning member, and the cleaning member includes a soft brush and a lens-wiping cloth. The soft brush and the lens-wiping cloth are alternately and evenly arranged on the extension plate along the movement path of the laser. The coverage area of ​​the soft brush and the lens-wiping cloth is greater than or equal to the area of ​​the laser lens. When the laser passes over the lens cleaning station, the soft brush and the lens-wiping cloth contact the laser lens in turn to clean it. The extension plate is provided with a plurality of vertical grooves, and the cleaning member is slidably installed in the vertical grooves; a plurality of horizontal grooves are provided on a side of the crossbeam close to the laser window opening mechanism, and a cleaning trigger slider is provided in the horizontal groove, and the cleaning trigger slider is slidably installed in the horizontal groove in the horizontal direction, and the height of the cleaning trigger slider is the same as the height of the mounting plate, and the laser module is arranged on the mounting plate; wherein, the cleaning trigger slider is arranged in a one-to-one correspondence with the cleaning member, and a linkage component connected between the cleaning trigger slider and the corresponding cleaning member is arranged in the crossbeam and the extension plate; When the lens cleaning mechanism is in a first state, the cleaning trigger slider extends out of the horizontal slot, the cleaning trigger slider is separated from the mounting plate, and the movement paths of the cleaning trigger slider and the mounting plate overlap, and the cleaning member is completely received in the vertical slot; when the lens cleaning mechanism is in a second state, the cleaning trigger slider is squeezed by the mounting plate to penetrate into the horizontal slot, and the cleaning trigger slider drives the cleaning member to extend upward from the horizontal slot through the linkage assembly, and the movement paths of the cleaning member and the laser lens overlap; A first return spring is arranged in the vertical groove, the first return spring is connected between the cleaning member and the extension plate, and the first return spring is used to provide an elastic force for the cleaning member to extend out of the vertical groove; a second return spring is arranged in the horizontal groove, the second return spring is connected between the cleaning trigger slider and the cross beam, and the second return spring is used to provide an elastic force for the cleaning trigger slider to extend out of the horizontal groove; wherein the elastic force of the second return spring is greater than the elastic force of the first return spring.

2. A PCB laser window opening device according to claim 1, characterized in that: An active cavity is arranged between the vertical groove and the horizontal groove, and the linkage assembly includes a vertical connecting rod and a horizontal connecting rod arranged in the active cavity, the upper end of the vertical connecting rod is connected to the cleaning trigger slider, and the end of the horizontal connecting rod close to the laser window opening mechanism is connected to the cleaning member, the lower end of the vertical connecting rod is arranged with a first guiding slope, and the end of the horizontal connecting rod away from the laser window opening mechanism is arranged with a second guiding slope corresponding to the first guiding slope, and the first guiding slope is in contact with the second guiding slope; wherein, the first guiding slope is an inclined surface which is gradually inclined from top to bottom toward a direction away from the laser window opening mechanism.

3. A PCB laser window opening device according to claim 2, characterized in that: A dust cover is provided at the notch of the vertical slot, the dust cover is hinged to the extension plate, a return torsion spring is provided at the hinge between the dust cover and the extension plate, the return torsion spring is used to provide elastic force for the dust cover to rotate to open the notch of the vertical slot; A through slot is provided on one side of the crossbeam close to the laser window opening mechanism, the through slot is inwardly connected to the active cavity, a shift rod is provided in the through slot, the shift rod is slidably installed in the through slot along a horizontal direction, and the shift rod is connected to the vertical connecting rod in the active cavity; When the lens cleaning mechanism is in a first state, the shift rod abuts against the upper side of the dust cover to limit the rotation of the dust cover; when the lens cleaning mechanism is in a second state, the shift rod moves horizontally along with the vertical connecting rod toward the direction of the cross beam to disengage from the area directly above the dust cover to release the rotation limit of the dust cover.

4. A PCB laser window opening device according to claim 1, characterized in that: The first loading and unloading platform includes a first horizontal moving plate, a first height adjustment component, and a first load-bearing positioning plate. The first load-bearing positioning plate is connected to the upper side of the first horizontal moving plate through the first height adjustment component. The first horizontal moving plate is used to drive the first height adjustment component and the first load-bearing positioning plate to reciprocate between the first loading and unloading station and the first processing station. The first height adjustment component is used to adjust the height difference between the first load-bearing positioning plate and the first horizontal moving plate. The first load-bearing positioning plate is used to carry and position the PCB board.

5. A PCB laser window opening device according to claim 4, characterized in that: The first height adjustment assembly comprises: a first vertical guide rail and a first vertical slider, wherein the first vertical slider is slidably connected to the first vertical guide rail along a vertical direction; wherein the first vertical guide rail is arranged on the upper side of the first horizontal movable plate, and the first vertical slider is arranged on the lower side of the first bearing positioning plate, or the first vertical guide rail is arranged on the lower side of the first bearing positioning plate, and the first vertical slider is arranged on the upper side of the first horizontal movable plate; The first height adjustment assembly further includes: a first driving cylinder, a first tilting slider, and a second tilting slider, wherein the first tilting slider is slidably connected to the upper side of the first horizontal moving plate, the second tilting slider is fixedly connected to the lower side of the first bearing positioning plate, the fixed end of the first driving cylinder is connected to the first horizontal moving plate, and the telescopic end of the first driving cylinder is connected to the first tilting slider; Among them, a first inclined surface with a gradually changing height is provided on the upper side of the first inclined slider, and a second inclined surface corresponding to and fitting the first inclined surface is provided on the lower side of the second inclined slider. The first inclined surface is slidably connected with the second inclined surface, and the first driving cylinder is used to drive the first inclined slider to move in the height change direction of the first inclined surface, so that the second inclined slider drives the first bearing positioning plate to lift or lower.

6. A PCB laser window opening device according to claim 5, characterized in that: The first inclined slider is arranged at the middle position of the first horizontal movable plate, the second inclined slider is arranged at the middle position of the first load-bearing positioning plate, and the first vertical guide rail and the first vertical slider are respectively arranged at the four corners of the first horizontal movable plate and the first load-bearing positioning plate.

7. A PCB laser window opening device according to claim 4, characterized in that: A plurality of adsorption holes are arranged on the upper side of the first bearing and positioning plate, a negative pressure cavity connected to the adsorption holes is arranged inside the first bearing and positioning plate, and the negative pressure cavity is connected to the vacuum pumping device through an air pipe.

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