Self-cleaning laser drilling jig for copper foil

Abstract

The invention relates to the technical field of laser drilling jigs, and discloses a self-cleaning copper foil laser drilling jig which comprises a jig plate and an integrated intelligent jig box body matched with the jig plate, a micropore array is arranged on the surface of the jig plate, clamping grooves are formed in the periphery of the jig plate, and the integrated intelligent jig box body is arranged in the clamping grooves. Spiral lifting levers connected with the clamping grooves are arranged on the periphery of the integrated intelligent jig box body. According to the self-cleaning jig, the non-displacement online self-cleaning action of the jig is achieved through temporary shutdown operation, the key point of the jig is that after an original jig plate ascends and descends under the interaction of a clamping groove and a spiral lifting lever, cleaning liquid and gas are sprayed through a strip-shaped mist spray nozzle telescopic lever and a strip-shaped gas spray nozzle telescopic lever correspondingly, and the cleaning effect is achieved. The laser carbonized copper powder cleaning and jig air drying are synchronized, finally, a vacuum back suction mode is utilized, cleaning liquid is recycled to a liquid tank through a guide pipe, the cleaning liquid is automatically recycled and reused, generalization is achieved through the jig, and only an upper cover plate is needed for flexible installation and allocation of special products.

Description

Technical Field

[0001] The invention relates to the technical field of laser drilling jigs, in particular to a self-cleaning copper foil laser drilling jig. Background Art

[0002] The via holes of the flexible circuit board are formed by copper foil laser drilling. During the laser drilling process, carbonized copper chips are often formed, so it is necessary to add a professional chip suction fixture between the laser drilling platform and the copper foil product. Considering factors such as product diversity, easy processing, and cost-effectiveness, the drilling fixture material often uses FR4 material, which is a composite material of glass fiber and epoxy resin.

[0003] During the operation of the copper foil laser drilling machine, due to the hollow position of the glass fiber drilling, the inner wall is often rough mesh, which is very easy to absorb powder. In the accumulation of batch operations, due to the absorption of powder, the jig slots are often made smaller, making it difficult to discharge waste, resulting in copper foil pressure points, drilling failures and other quality abnormalities. If the jig slots are simply enlarged, the jig plate will collapse or become unable to be processed. Therefore, in order to keep the jig in normal use, it is often necessary to stop the machine to take the board and then put it into a professional micro-etching tank for hole wall dissolution, pressure, spraying, cleaning, drying and other operations. This method greatly reduces the utilization rate of the drilling machine and affects the production capacity of other products of the micro-etching line, as well as the consumption of energy materials such as water, electricity, and liquid medicine, increased labor costs, and difficulty in monitoring the frequency of cleaning. Summary of the invention

[0004] The purpose of the present invention is to provide a self-cleaning copper foil laser drilling jig to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-cleaning copper foil laser drilling jig, comprising a jig plate and a matching integrated intelligent jig box, wherein a microhole array is provided on the surface of the jig plate, and positioning grooves are provided around the jig plate, and spiral lifting bars connected to the positioning grooves are provided around the integrated intelligent jig box, and a driving motor is connected to one end of the spiral lifting bar, and the spiral lifting bar is raised or lowered by the rotation of the driving motor, thereby realizing precise positioning and rapid replacement of the copper foil; the microhole array of the jig plate is treated with a nano-scale coating to improve the efficiency and self-cleaning ability of laser drilling and reduce the maintenance frequency.

[0006] Preferably, one side of the bottom of the integrated intelligent fixture box is formed into a concave groove for collecting waste gas and waste residue generated during the drilling process to reduce pollution in the working area, and a slightly leaky water storage and diversion is formed at a corner of the concave groove to facilitate centralized treatment of waste gas and waste residue. At the same time, the water storage and diversion design effectively prevents the erosion of wastewater on other parts of the fixture, thereby improving the service life and stability of the fixture.

[0007] Preferably, a clearance hole is provided at the middle bottom plate of the integrated intelligent fixture box at the same position as the platform vacuum air guide hole, so that the waste gas and waste residue generated by the fixture during the drilling process can be promptly sucked away through the clearance hole, further optimizing the working environment and reducing the harm to the operator.

[0008] Preferably, a telescopic plate is provided on the side of the integrated intelligent fixture box body, a strip mist nozzle telescopic rod is provided on the telescopic plate, and is connected to a liquid tank, a strip air jet nozzle telescopic rod is provided on the telescopic plate, and is connected to an air tank, and the strip mist nozzle telescopic rod cooperates with the strip air jet nozzle telescopic rod to achieve precise control of the jet and mist liquid spray, provide sufficient cooling and cleaning for the drilling operation, and can effectively reduce noise pollution during the operation, thereby improving the overall operation efficiency and environmental protection performance.

[0009] Preferably, the concave groove and the liquid tank are connected by a conduit to form a closed circulation system to ensure the effective recycling of waste water and waste residue during the operation. At the same time, the system is also equipped with an intelligent detection module that can monitor the working status of the fixture in real time and automatically alarm when an abnormal situation occurs to remind the operator to deal with it in time.

[0010] The present invention provides a self-cleaning copper foil laser drilling jig, which has the following beneficial effects:

[0011] (1) The present invention realizes the online self-cleaning action of the fixture without displacement by briefly stopping the machine. The focus of the fixture is to use the original fixture plate to lift and lower under the interaction of the positioning groove and the spiral lifting rod, and then use the strip mist nozzle telescopic rod and the strip air nozzle telescopic rod to spray cleaning liquid and gas respectively to perform laser carbide copper powder cleaning and fixture air drying simultaneously. Finally, the vacuum back suction method is used to recover the cleaning liquid to the liquid tank through the catheter, and the cleaning liquid is automatically recovered for reuse. The fixture is universalized, and only the upper cover plate is required for flexible installation and deployment of special products.

[0012] (2) The jig cleaning of the present invention does not require manual transfer operations; there is no need to unload and take copper foil products, and stop the machine for operation; there is no need to occupy other micro-etching lines for special cleaning, occupy production capacity, consume water, electricity, and liquid materials; the self-cleaning frequency can be monitored and set; in order to effectively control the quality abnormalities caused by blockage and plugging of the through holes, the yield of this special project has increased to 99%, which not only improves production efficiency, but also greatly reduces production costs.

[0013] (3) The present invention provides a concave groove and a slightly lower leak-shaped water storage diversion formed at a corner of the concave groove to effectively guide the flow of the cleaning liquid, avoid the accumulation of residual liquid inside the fixture, and ensure the thoroughness of the cleaning process. Finally, the cleaning liquid is automatically recovered through a conduit to a liquid tank by vacuum suction for reuse, and the fixture is made universal, thereby realizing the automation of the cleaning process, further reducing labor costs, making the production process smoother, and improving the equipment startup rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is a schematic diagram of the overall structure of the present invention.

[0015] In the figure: a positioning groove 1, a spiral lifting rod 2, a concave groove 3, a water storage diversion 4, a clearance through hole 5, a telescopic plate 6, a strip mist nozzle telescopic rod 7, a strip air nozzle telescopic rod 8, a liquid tank 9, a gas tank 10, a conduit 11, and a fixture plate 12. DETAILED DESCRIPTION

[0016] 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0018] 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 a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] A preferred embodiment of a self-cleaning copper foil laser drilling jig provided by the present invention is shown in FIG1 : a self-cleaning copper foil laser drilling jig, comprising a jig plate 12 and a matching integrated intelligent jig box body, a micro-hole array is provided on the surface of the jig plate 12, a clamping groove 1 is provided around the jig plate 12, a spiral lifting bar 2 connected to the clamping groove 1 is provided around the integrated intelligent jig box body, one end of the spiral lifting bar 2 is connected to a driving motor, and the spiral lifting bar 2 is raised or lowered by the rotation of the driving motor, thereby realizing precise positioning and rapid replacement of the copper foil; the micro-hole array of the jig plate 12 is treated with a nano-scale coating to improve the efficiency and self-cleaning ability of laser drilling and reduce the maintenance frequency;

[0020] The bottom side of the integrated intelligent fixture box body is formed into a concave groove 3, which is used to collect waste gas and waste residue generated during the drilling process to reduce pollution in the working area, and a slightly leaky water storage and diversion 4 is formed at one corner of the concave groove 3 to facilitate centralized treatment of waste gas and waste residue. At the same time, the design of the water storage and diversion 4 effectively prevents wastewater from eroding other parts of the fixture, thereby improving the service life and stability of the fixture;

[0021] A clearance hole 5 is provided at the middle bottom plate of the integrated intelligent fixture box body and at the same position as the platform vacuum air guide hole, so that the waste gas and waste residue generated by the fixture during the drilling process can be sucked away in time through the clearance hole 5, further optimizing the working environment and reducing the harm to the operator;

[0022] A telescopic plate 6 is provided on the side of the integrated intelligent fixture box body, a strip mist nozzle telescopic rod 7 is provided on the telescopic plate 6, and a liquid tank 9 is connected thereto, a strip air nozzle telescopic rod 8 is provided on the telescopic plate 6, and a gas tank 10 is connected thereto, and the strip mist nozzle telescopic rod 7 cooperates with the strip air nozzle telescopic rod 8 to achieve precise control of air jet and mist spray, provide sufficient cooling and cleaning for drilling operations, and effectively reduce noise pollution during operations, thereby improving overall operation efficiency and environmental protection performance;

[0023] The concave groove 3 and the liquid tank 9 are connected by a conduit 11 to form a closed circulation system to ensure the effective recycling of waste water and waste residue during the operation. At the same time, the system is also equipped with an intelligent detection module, which can monitor the working status of the fixture in real time, and automatically alarm when an abnormal situation occurs, reminding the operator to deal with it in time.

[0024] When in use, during the copper foil processing, when the predetermined frequency of use is reached, the machine can be paused to perform the self-cleaning action of the jig: first, the spiral lifting lever 2 is started by the switch to lower the upper cover plate of the jig to the half-middle height; then the bottom of the side is fitted to make way for the through hole 5, leaving the concave groove position vacant, without covering, so as to retain the cleaning liquid for collection and reuse; the aqueous cleaning liquid is turned on through the strip mist nozzle telescopic lever 7, and the cleaning liquid is sprayed at a uniform speed and synchronously from the left side to the right side of the jig; after the strip mist nozzle telescopic lever 7 is returned to its position, the gas is turned on through the strip air nozzle telescopic lever 8, and the cleaning liquid is sprayed at a uniform speed and synchronously from the left side to the right side of the jig, so that the residual aqueous cleaning liquid is dried and cleaned with high-pressure gas; in this process, the cleaning liquid is recovered to the liquid tank through the conduit 11 by vacuum suction; the spiral lifting lever 2 is started again to raise the upper cover plate of the jig to its original position, and the drilling machine is started to continue the operation.

[0025] In summary, by briefly stopping the machine, the online self-cleaning action of the jig without displacement can be achieved. The focus of the jig is to lift the original jig plate under the interaction of the positioning groove 1 and the spiral lifting rod 2, and then use the strip mist nozzle telescopic rod 7 and the strip air nozzle telescopic rod 8 to spray cleaning liquid and gas respectively, so as to carry out laser carbide copper powder cleaning and jig air drying simultaneously, and finally use the vacuum back suction method to recover the cleaning liquid to the liquid tank through the conduit 11, and automatically recover the cleaning liquid for reuse, and realize universalization with the jig, and only need the upper cover plate to flexibly install and deploy special products.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-cleaning copper foil laser drilling jig, comprising a jig plate (12) and a matching integrated intelligent jig box, characterized in that: The surface of the jig plate (12) is provided with a micro-hole array, the jig plate (12) is provided with a locking groove (1) on its periphery, the integrated intelligent jig box body is provided with a spiral lifting bar (2) connected to the locking groove (1) on its periphery, one end of the spiral lifting bar (2) is connected to a driving motor, and the spiral lifting bar (2) is raised or lowered by the rotation of the driving motor; the micro-hole array of the jig plate (12) is treated with a nano-scale coating.

2. The self-cleaning copper foil laser drilling jig according to claim 1, characterized in that: One side of the bottom of the integrated intelligent fixture box body is in the form of a concave groove (3), and a slightly lower leak-shaped water storage and diversion (4) is formed at a corner of the concave groove (3).

3. The self-cleaning copper foil laser drilling jig according to claim 1, characterized in that: A clearance through hole (5) is provided at the middle bottom plate of the integrated intelligent fixture box body, co-located with the platform vacuum air guide hole.

4. The self-cleaning copper foil laser drilling jig according to claim 1, characterized in that: A telescopic plate (6) is provided on the side of the integrated intelligent fixture box body, a strip-shaped mist nozzle telescopic rod (7) is provided on the telescopic plate (6), and is connected to a liquid tank (9), and a strip-shaped air jet nozzle telescopic rod (8) is provided on the telescopic plate (6), and is connected to an air tank (10).

5. The self-cleaning copper foil laser drilling jig according to claim 2, characterized in that: The concave groove (3) and the liquid tank (9) are connected via a conduit (11) to form a closed circulation system, thereby ensuring effective recycling of waste water and waste residue during the operation process.

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