Circuit board processing technology without hitting inner pins

Abstract

The invention discloses a circuit board processing technology without drilling inner pins. The circuit board processing technology comprises the following steps: S1, taking a large board material and positioning the large board material on a workbench of a numerical control gong machine through jig pins of two groups of peripheral positioning holes; s2, a numerical control milling machine is used for milling and cutting the large board in the direction away from the positioning angle to the direction close to the positioning angle so that at least one first type of circuit board can be obtained through milling and cutting; s3, adjusting the milling cutting speed of the numerical control milling machine until the Ath edge of the first type of circuit board is completely separated from the large board; s4, pausing the numerical control gong machine; s5, the numerical control milling machine is used for milling and cutting the large board in the direction away from the positioning angle to the direction close to the positioning angle so that at least one Nth type circuit board can be milled and cut; s6, adjusting the milling cutting speed of the numerical control milling machine until the Cth edge of the Nth type circuit board is completely separated from the large board; s7, pausing the numerical control milling machine; and S8, waste materials are taken down. The processing mode is simple and convenient. And inner pins do not need to be punched, time is saved, operation efficiency is high, and cost is low.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit board processing technology, and in particular relates to a circuit board processing technology without inner pins. Background Art

[0002] Circuit board manufacturers process the appearance of finished and semi-finished boards according to process requirements or customer needs. Traditional forming methods include machine gong, beer board, hand gong, hand cutting, etc. CNC gong machines are now widely used due to their safe operation, high efficiency, and high forming accuracy.

[0003] like Figure 1 As shown, in the process of producing circuit boards, in order to improve efficiency and save costs, each small-area circuit board is manufactured on a large-area sheet, and then the small-area circuit board is cut from the sheet by a CNC gong machine. In order to avoid relative displacement of the circuit board being gonged during the gong-cutting process, which affects the gong-cutting accuracy of the circuit board, it is necessary to set a large number of positioning pins on the workbench of the CNC gong machine for each circuit board being gonged, and set corresponding pin holes for the positioning pins to be inserted on each circuit board, and then align the pin holes on the circuit board with the positioning pins that have been nailed on the workbench, so that the circuit board is positioned and installed on the workbench through the positioning pins, and then the gong-cutting process of the circuit board is performed to produce the corresponding model of circuit boards. This makes the process of positioning and cutting the circuit board on the material board very cumbersome and time-consuming. When changing to a different model of product, the staff needs to remove the positioning pins drilled for the previous model, reset the positioning pins on the workbench, and re-drill the corresponding pin holes on the new model of the circuit board to meet the positioning operation of cutting the new model of the circuit board. With the increase in production costs such as materials and labor, and the higher requirements of end customers for process requirements, the positioning method of matching positioning pins with pin holes can no longer meet these requirements. In addition, during the cutting process of some small circuit boards, it is impossible to reserve pin holes in the small position of the circuit board, resulting in technical problems of positioning difficulties.

[0004] For example, patent application No. 201710019052.7 discloses a circuit board cutting process without nailing pins on a workbench, and uses a CNC cutting machine to cut at least one circuit board on a material plate. The circuit board cutting process without nailing pins on a workbench includes the following steps: using an air clamp to position and fix the material plate, wherein the air clamp includes a first positioning pin and a second positioning pin, the first positioning pin is a fixed pin, the second positioning pin can move relative to the first positioning pin to clamp and fix the material plate, and the edge of the material plate is provided with a first positioning pin hole and a second positioning pin hole corresponding to the first positioning pin and the second positioning pin; using The CNC gong machine performs the first gong cutting process on the material board along the edge of the circuit board. During the first gong cutting process, a plurality of break positions are reserved between the circuit board and the material board. The plurality of break positions are spaced at intervals on the circumferential edge of the circuit board, and the circuit board and the material board are connected through the break positions. After the first gong cutting process is completed, the CNC gong machine performs the second gong cutting process on each of the break positions to separate the circuit board from the material board. During the second gong cutting process, the presser foot device of the CNC gong machine is used to simultaneously press the material board and the circuit board currently being gong cut on the workbench of the CNC gong machine, wherein the air clamp is installed on the workbench. This circuit board gong cutting process without pinning on the workbench can complete the circuit board gong cutting without pinning. However, in this process, a plurality of break positions need to be reserved between the circuit board and the material board, and the processing method is complicated and inconvenient. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides a circuit board processing technology which has a simple processing method and does not require internal pins.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A circuit board processing technology without internal pins is completed by a CNC gong machine and a workbench of the CNC gong machine. The workbench of the CNC gong machine is provided with at least two groups of peripheral positioning holes, the two groups of peripheral positioning holes are combined to form a positioning angle, and a fixture pin is provided in the peripheral positioning hole, including the following steps: S1, take a large plate and position the large plate on the workbench of the CNC gong machine through two sets of jig pins of peripheral positioning holes; S2. Use a CNC gong machine to perform gong cutting on the large sheet material in a direction from away from the positioning angle to close to the positioning angle to gong cut out at least one first type of circuit board, wherein the first type of circuit board has A+B edges, the Ath edge of the first type of circuit board is the edge closest to the positioning angle, the CNC gong machine first performs gong cutting on the Bth edge of the first type of circuit board, and then the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board, where A is 1 and B is a positive integer greater than or equal to 2; S3, when the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board to the remaining set distance between the Ath edge of the first type of circuit board and the large plate, the presser foot device of the CNC gong machine is started to simultaneously press the large plate and the first type of circuit board on the workbench, and then the gong cutting speed of the CNC gong machine is adjusted until the Ath edge of the first type of circuit board is completely separated from the large plate; S4, pausing the CNC gong machine and removing the first type of circuit board; S5. Use a CNC gong machine to perform gong cutting on the large sheet material in a direction from away from the positioning angle to close to the positioning angle to gong cut out at least one Nth type of circuit board, wherein the Nth type of circuit board has C+D edges, the Cth edge of the Nth type of circuit board is the edge closest to the positioning angle, the CNC gong machine first performs gong cutting on the Dth edge of the Nth type of circuit board, and then the CNC gong machine performs gong cutting on the Cth edge of the Nth type of circuit board, C is 1, D is a positive integer greater than or equal to 2, and N is a positive integer greater than or equal to 2; S6, when the CNC gong machine performs gong cutting on the Cth edge of the Nth type of circuit board to the remaining set distance between the Cth edge of the Nth type of circuit board and the large plate, the presser foot device of the CNC gong machine is started to press the large plate and the Nth type of circuit board on the workbench at the same time, and then the gong cutting speed of the CNC gong machine is adjusted until the Cth edge of the Nth type of circuit board is completely separated from the large plate; S7, pause the CNC gong machine and remove the Nth type of circuit board; S8. Remove the remaining waste of the large plate material after gong cutting on the workbench of the CNC gong machine, and continue to start the CNC gong machine until all types of circuit boards are gong cut.

[0007] Preferably, the positioning angle is a right angle.

[0008] Preferably, when the first type of circuit board is a quadrilateral circuit board, B is 3 and the B sides of the first type of circuit board are B1 side, B2 side and B3 side, wherein B1 side and B3 side are connected to the two ends of the Ath side of the first type of circuit board, and B2 side is located between B1 side and B3 side. In S2, the CNC gong machine first selects an arc starting point or a straight line starting point at the angle between the Ath side and B1 side of the first type of circuit board to cut, and then the CNC gong machine processes the B1 side of the first type of circuit board, then the CNC gong machine processes the B2 side of the first type of circuit board, and then the CNC gong machine processes the B3 side of the first type of circuit board, and then the CNC gong machine completes the knife closing at the angle between the Ath side and B3 side of the first type of circuit board, pauses the CNC gong machine, and then starts the CNC gong machine to perform gong cutting on the Ath side of the first type of circuit board; When the Nth type of circuit board is a quadrilateral circuit board, D is 3 and the D sides of the Nth type of circuit board are D1, D2 and D3 respectively, wherein D1 and D3 are connected to the two ends of the Cth side of the Nth type of circuit board, and D2 is located between D1 and D3. In S5, the CNC gong machine first selects an arc starting point or a straight line starting point at the angle between the Cth side and the D1 side of the Nth type of circuit board to cut, and then the CNC gong machine processes the D1 side of the Nth type of circuit board, then the CNC gong machine processes the D2 side of the Nth type of circuit board, and then the CNC gong machine processes the D3 side of the Nth type of circuit board, and then the CNC gong machine completes the knife closing at the angle between the Cth side and the D3 side of the Nth type of circuit board, pauses the CNC gong machine, and then starts the CNC gong machine to perform gong cutting on the Cth side of the Nth type of circuit board.

[0009] Preferably, when there are two or more first-type circuit boards in S2, the CNC gong machine first completes gong cutting processing on the Bth edge of all first-type circuit boards in sequence, and then completes gong cutting processing on the Ath edge of all first-type circuit boards in sequence; When there are two or more Nth type circuit boards in S5, the CNC guillotine cutting machine first sequentially completes the guillotine cutting process on the Dth edges of all the Nth type circuit boards and then sequentially completes the guillotine cutting process on the Cth edges of all the Nth type circuit boards.

[0010] The present invention also discloses a circuit board processing technology without internal pins, which is completed by a numerical control gong machine and a working table of the numerical control gong machine. The working table of the numerical control gong machine is provided with at least two groups of peripheral positioning holes, the two groups of peripheral positioning holes are combined to form a positioning angle, and a fixture pin is provided in the peripheral positioning hole, comprising the following steps: S1, take a large plate and position the large plate on the workbench of the CNC gong machine through two sets of jig pins of peripheral positioning holes; S2. Use a CNC gong machine to perform gong cutting on the large sheet material in a direction from away from the positioning angle to close to the positioning angle to gong cut out at least one first type of circuit board, wherein the first type of circuit board has A+B edges, the Ath edge of the first type of circuit board is the edge closest to the positioning angle, the CNC gong machine first performs gong cutting on the Bth edge of the first type of circuit board, and then the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board, where A is 1 and B is a positive integer greater than or equal to 2; S3, when the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board to the remaining set distance between the Ath edge of the first type of circuit board and the large plate, the presser foot device of the CNC gong machine is started to simultaneously press the large plate and the first type of circuit board on the workbench, and then the gong cutting speed of the CNC gong machine is adjusted until the Ath edge of the first type of circuit board is completely separated from the large plate; S4, pausing the CNC gong machine and removing the first type of circuit board; S5. Remove the remaining waste from the large sheet material after gong cutting on the workbench of the CNC gong machine.

[0011] Preferably, when the first type of circuit board is a quadrilateral circuit board, B is 3 and the B sides of the first type of circuit board are B1, B2 and B3, respectively, wherein the B1 and B3 sides are connected to the two ends of the Ath side of the first type of circuit board, and the B2 side is located between the B1 and B3 sides. In S2, the CNC gong machine first selects an arc starting point or a straight line starting point at the angle between the Ath side and the B1 side of the first type of circuit board to cut, and then the CNC gong machine processes the B1 side of the first type of circuit board, and then the CNC gong machine processes the B2 side of the first type of circuit board, and then the CNC gong machine processes the B3 side of the first type of circuit board, and then the CNC gong machine completes the knife closing at the angle between the Ath side and the B3 side of the first type of circuit board, pauses the CNC gong machine, and then starts the CNC gong machine to perform gong cutting on the Ath side of the first type of circuit board.

[0012] Preferably, when there are two or more first type circuit boards in S2, the CNC guillotine cutting machine first sequentially completes guillotine cutting processing on the Bth edge of all first type circuit boards and then sequentially completes guillotine cutting processing on the Ath edge of all first type circuit boards.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects: In the present invention, the peripheral positioning holes on the working table of the CNC gong machine are directly used to set the jig pins to assist in positioning the large material plate, and then the gong cutting process is performed. When processing circuit boards of different sizes and types, it is not necessary to punch the internal pins, which can save the time of disassembling and assembling the pins and the time of taking the circuit board after the processing is completed, which greatly improves the working efficiency, saves the cost of jig loss, and has a simple processing method. In summary, the present invention has the advantages of simple processing, no need to drive internal pins, saving time, high working efficiency, low cost, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of processing a circuit board by punching inner pins in the prior art; Figure 2 It is a schematic diagram of the process of the present invention; Figure 3 It is a structural schematic diagram of the present invention for processing a large sheet material without driving an inner pin; Figure 4 It is a schematic diagram of the cutting direction when the first type of circuit board in the present invention is a quadrilateral circuit board and is processed clockwise; Figure 5 It is a schematic diagram of the gong cutting direction when the first type of circuit board in the present invention is a quadrilateral circuit board and is processed counterclockwise; Figure 6 It is a schematic diagram of the gong cutting direction when the Nth type of circuit board in the present invention is a quadrilateral circuit board and is processed clockwise; Figure 7 It is a schematic diagram of the cutting direction when the Nth type of circuit board in the present invention is a quadrilateral circuit board and is processed counterclockwise. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0017] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Example 1 In the present embodiment, a circuit board processing technology without inserting an internal pin 100 is proposed in the present embodiment. The internal pin 100 is not required, and the purpose is to solve the problem of complicated positioning and installation procedures and difficult positioning during the circuit board gong cutting process in the prior art. Since the peripheral holes of the circuit board can be made into fixed spacing and fixed size, the positioning holes can be used to position the sheet when processing different types of circuit boards, thereby saving the time for removing and planting pins and the time for removing materials and taking out boards after processing, greatly improving the working efficiency and saving the cost of fixture loss.

[0021] like Figure 2 and Figure 3 As shown, in one embodiment of the present invention, when it is necessary to process a plurality of different types of circuit boards on a large plate, that is, when processing two or more types of circuit boards (it can be understood that the different types of circuit boards mentioned in the present invention refer to circuit boards of different types and sizes, which can be triangular, quadrilateral, pentagonal or even more deformed circuit boards, which are of different sizes, and there are two or more such circuit boards on the large plate), the circuit board processing technology of the present invention without inner pins 100 can be adopted. The technology is completed by a CNC gong machine and a workbench 3 of the CNC gong machine. The workbench 3 of the CNC gong machine is provided with at least two groups of peripheral positioning holes 4, and the two groups of peripheral positioning holes 4 are combined to form a positioning angle, which can be various angles, such as acute angles, right angles and obtuse angles, etc., preferably right angles. A jig pin is arranged in the peripheral positioning hole 4. The peripheral holes of the large sheet can be fixed in spacing and size and can be directly positioned by means of two groups of peripheral positioning holes 4 on the working table 3 of the CNC gong machine. It can be understood that in the present invention, at least two groups of peripheral positioning holes 4 are arranged on the working table 3 of the CNC gong machine. The peripheral positioning holes 4 can be two groups, three groups, four groups, etc. When there are two groups, it can refer to Figure 3As shown, they are respectively arranged on the left and the bottom and enclose a positioning angle similar to a right angle, and then the large sheet is positioned on the left and the bottom through these two groups of peripheral positioning holes 4. When there are three groups of peripheral positioning holes 4, they can be arranged on the left, the bottom and the right (top), etc. When there are four groups of peripheral positioning holes 4, they can be arranged on the left, the bottom, the right and the top. The two adjacent groups of peripheral positioning holes 4 are enclosed to form a positioning angle. Any simple transformation should be covered within the scope of protection of the present invention. In this embodiment of the present invention, two groups of peripheral positioning holes 4 are mainly arranged on the left and the bottom for positioning. Specifically, the circuit board processing technology without inner pins 100 of the present invention includes the following steps: S1, take a large plate and position the large plate on the workbench 3 of the CNC gong machine through the jig pins of two groups of peripheral positioning holes 4 (if the peripheral positioning holes 4 are three, four or more groups, the large plate can be positioned through the corresponding number of peripheral positioning holes 4 respectively); S2. Use a CNC gong machine to perform gong cutting on the large plate material along the direction away from the positioning angle to the direction close to the positioning angle to gong cut out at least one first type circuit board 1, wherein the first type circuit board 1 has A+B edges, and the Ath edge of the first type circuit board 1 is the edge closest to the positioning angle. It can be understood that when there are multiple edges closest to the positioning angle, you can choose any one of them or choose the edge with a longer connection distance with the large plate material. The CNC gong machine first performs gong cutting on the B edge of the first type circuit board 1, and then the CNC gong machine performs gong cutting on the Ath edge of the first type circuit board 1, A is 1, and B is a positive integer greater than or equal to 2. When there are two or more first type circuit boards in S2, the CNC gong machine first performs gong cutting on all the first types. After the Bth edge of the circuit board is processed in sequence, the Ath edge of all the first type circuit boards is processed in sequence. Specifically, there are one or more first type circuit boards 1. For example, circuit boards of the same type arranged along the same column or the same row can be processed together at one time. The processing direction of the CNC gong machine can be processed in clockwise, counterclockwise or other suitable directions. When there are multiple first type circuit boards 1, it can also choose a suitable processing direction for processing. For example, if there are three first type circuit boards, they are arranged from top to bottom in the same column. At this time, the left side of the three circuit boards is the Ath edge, which is processed last. The processing direction of the remaining edges is that it can first process the uppermost edge of the uppermost circuit board. , then process the right sides of the three circuit boards at one time, then process the lower side of the third circuit board, and finally process the first circuit board and the second circuit board and the second circuit board and the third circuit board. The processing direction at this time can be set according to the needs, and finally process the left sides of the three circuit boards. More specifically, when the first type of circuit board is a quadrilateral circuit board, B is 3 and the B sides of the first type of circuit board are B1, B2 and B3, respectively, wherein the B1 side and the B3 side are connected to the two ends of the Ath side of the first type of circuit board, and the B2 side is located between the B1 side and the B3 side. The CNC gong machine in S2 first selects the arc starting point or the straight line starting point at the angle between the Ath side and the B1 side of the first type of circuit board. Cut, then the CNC gong machine processes the B1 side of the first type of circuit board, then the CNC gong machine processes the B2 side of the first type of circuit board, then the CNC gong machine processes the B3 side of the first type of circuit board, then the CNC gong machine completes the knife closing at the angle between the Ath side and the B3 side of the first type of circuit board, pauses the CNC gong machine, and then starts the CNC gong machine to perform gong cutting on the Ath side of the first type of circuit board. Selecting the straight line starting point to cut in S2 means using the CNC gong machine to feed along the straight line, that is, in S2, the CNC gong machine first moves the tool of the CNC gong machine in a straight line at the angle between the Ath side and the B1 side of the first type of circuit board, and selecting the arc starting point to cut in S2 means using the CNC gong machine to feed along a certain arc direction.That is, in S2, the CNC guillotine cuts the edge of the first type of circuit board in an arc at the angle between the Ath side and the B1th side, and after the CNC guillotine cuts the edge of the first type of circuit board and stops cutting at the angle between the Ath side and the B3th side, the CNC guillotine cuts the edge of the first type of circuit board in a straight line when the CNC guillotine cuts the edge of the first type of circuit board again; S3, when the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board 1 to the remaining set distance between the Ath edge of the first type of circuit board 1 and the large plate, the set distance is within several millimeters, the presser foot device of the CNC gong machine is started to press the large plate and the first type of circuit board 1 on the workbench 3 at the same time, and then the gong cutting speed of the CNC gong machine is adjusted until the Ath edge of the first type of circuit board 1 is completely separated from the large plate. More specifically, the CNC gong machine of the present invention is a prior art, which has been disclosed in detail in the background technology. The specific operation steps are to ensure that the soft brush does not move to press the large plate and the first type of circuit board 1 on the workbench 3, slow down the gong cutting speed of the CNC gong machine, and ensure that the last gong break of the gong-cut first type of circuit board 1 has no obvious convex point; S4, pausing the CNC gong machine and removing the first type of circuit board 1; S5, please refer to Figure 4-Figure 7 , using a numerically controlled gong machine to perform gong cutting on a large sheet material in a direction from away from the positioning angle to close to the positioning angle to gong cut out at least one Nth type of circuit board 2, wherein the Nth type of circuit board 2 has C+D edges, the Cth edge of the Nth type of circuit board 2 is the edge closest to the positioning angle, the numerically controlled gong machine first performs gong cutting on the D edge of the Nth type of circuit board 2, and then the numerically controlled gong machine performs gong cutting on the Cth edge of the Nth type of circuit board 2, C is 1, D is a positive integer greater than or equal to 2, and N is a positive integer greater than or equal to 2. If the Nth type of circuit board is a quadrilateral circuit board, D is 3 and the D edges of the Nth type of circuit board are D1 edge, D2 edge and D3 edge respectively. , wherein the D1 side and the D3 side are connected to the two ends of the Cth side of the Nth type of circuit board, and the D2 side is located between the D1 side and the D3 side. In the S5, the CNC gong machine first selects the arc starting point or the straight line starting point at the angle between the Cth side and the D1 side of the Nth type of circuit board to cut, and then the CNC gong machine processes the D1 side of the Nth type of circuit board, and then the CNC gong machine processes the D2 side of the Nth type of circuit board, and then the CNC gong machine processes the D3 side of the Nth type of circuit board, and then the CNC gong machine completes the knife closing at the angle between the Cth side and the D3 side of the Nth type of circuit board, pauses the CNC gong machine, and then starts the CNC gong machine to perform gong cutting on the Cth side of the Nth type of circuit board; When there are two or more N-type circuit boards in S5, the CNC gong machine first completes the gong cutting process on the D-th edges of all the N-type circuit boards in sequence, and then completes the gong cutting process on the C-th edges of all the N-type circuit boards in sequence, that is, there are also multiple N-type circuit boards 2. For example, circuit boards of the same type arranged along the same column or the same row can be processed together at one time. The processing direction of the CNC gong machine can be processed in a clockwise, counterclockwise or other suitable directions. When there are multiple N-type circuit boards 2, it can also select a suitable processing direction for processing. For example, there are two N-type circuit boards, which are arranged from left to right in the same row. At this time, the lower edges of the two circuit boards are the C-th edge, which is processed last. The processing direction of the remaining edges is that it can first process the leftmost edge of the leftmost circuit board, then process the upper sides of the two circuit boards at one time, and then process the right side of the right circuit board. The processing direction at this time can be set according to demand. The selection of the arc starting point or the straight line starting point in S5 is to cut along a straight line or an arc. There are circuit boards of various shapes on the same large plate. In the present invention, the whole is cut from the upper right to the lower right, and then from right to left. The CNC gong machine completes the cutting at the angle between the Cth edge and the D3 edge of the Nth type of circuit board. After the CNC gong machine is paused, the CNC gong machine is started again to perform gong cutting on the Cth edge of the Nth type of circuit board. The gong cutting is also performed in a straight line. S6, when the CNC gong machine performs gong cutting on the Cth edge of the Nth type of circuit board 2 to the remaining set distance between the Cth edge of the Nth type of circuit board 2 and the large plate, similarly, the set distance is within a few millimeters, such as within 10mm, start the presser foot device of the CNC gong machine to press the large plate and the Nth type of circuit board 2 on the workbench 3 at the same time, and then adjust the gong cutting speed of the CNC gong machine until the Cth edge of the Nth type of circuit board 2 is completely separated from the large plate. Similarly, the specific operation steps are to ensure that the soft brush does not move to press the large plate and the Nth type of circuit board 2 on the workbench 3, slow down the gong cutting speed of the CNC gong machine, and ensure that the breakpoint of the last gong break of the Nth type of circuit board 2 being gong cut has no obvious convex point; S7, suspend the CNC gong machine and remove the Nth type of circuit board 2; S8, remove the remaining waste of the large plate material after gong cutting on the working table 3 of the CNC gong machine, and continue to start the CNC gong machine until all types of circuit boards are gong cut.

[0022] In the present invention, one or more large sheets can be processed simultaneously according to the needs. The circuit board processing technology without the inner pin 100 of the present invention is only for the step of cutting multiple different types or a single type of circuit boards from the large sheet. Before that, it also includes the step of cutting the inner groove of the circuit board. In order to ensure the cutting quality, the cutting step of the inner groove of the circuit board still chooses the processing method of positioning the inner pin 100 in the prior art.

[0023] Example 2 Embodiment 1 is a processing technology for processing different types of circuit boards on a large plate. If there is only one type of circuit board on the large plate, the circuit board processing technology of the present invention without internal pins 100 is completed by a CNC gong machine and a workbench 3 of the CNC gong machine. The workbench 3 of the CNC gong machine is provided with at least two groups of peripheral positioning holes 4, and the two groups of peripheral positioning holes 4 are combined to form a positioning angle. The positioning angle can be various angles, such as acute angles, right angles and obtuse angles, etc., and a fixture pin is provided in the peripheral positioning hole 4, including the following steps: S1, take a large plate and position the large plate on the workbench 3 of the CNC gong machine through the jig pins of the two sets of peripheral positioning holes 4; S2. Use a CNC gong machine to perform gong cutting on the large sheet material in a direction from away from the positioning angle to close to the positioning angle to gong cut out at least one first type of circuit board 1, wherein the first type of circuit board 1 has A+B edges, the Ath edge of the first type of circuit board 1 is the edge closest to the positioning angle, the CNC gong machine first performs gong cutting on the Bth edge of the first type of circuit board 1, and then the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board 1, A is 1, and B is a positive integer greater than or equal to 2; S3, when the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board 1 to the remaining set distance between the Ath edge of the first type of circuit board 1 and the large plate, the presser foot device of the CNC gong machine is started to simultaneously press the large plate and the first type of circuit board 1 on the workbench 3, and then the gong cutting speed of the CNC gong machine is adjusted until the Ath edge of the first type of circuit board 1 is completely separated from the large plate; S4, pausing the CNC gong machine and removing the first type of circuit board 1; S5. Remove the waste remaining from the large sheet after gong cutting on the workbench 3 of the CNC gong machine. In this embodiment, there is only one type of circuit board, and its operation steps are the same as the processing process of the first type of circuit board in Example 1. Specifically, when the first type of circuit board is a quadrilateral circuit board, B is 3 and the B edges of the first type of circuit board are B1 edge, B2 edge and B3 edge, respectively, wherein the B1 edge and the B3 edge are connected to the two ends of the Ath edge of the first type of circuit board, and the B2 edge is located between the B1 edge and the B3 edge. The CNC gong machine in S2 first selects the starting point of the arc or the straight line at the angle between the Ath edge and the B1 edge of the first type of circuit board. The cutting starts at the starting point, and then the CNC gong machine processes the B1 side of the first type of circuit board, and then the CNC gong machine processes the B2 side of the first type of circuit board, and then the CNC gong machine processes the B3 side of the first type of circuit board, and then the CNC gong machine completes the cutting at the angle between the Ath side and the B3 side of the first type of circuit board, pauses the CNC gong machine, and then starts the CNC gong machine to perform gong cutting on the Ath side of the first type of circuit board. In this embodiment S2, when there are two or more first type circuit boards, the CNC gong machine first completes the gong cutting on all the Bth sides of the first type of circuit boards in sequence, and then completes the gong cutting on all the Ath sides of the first type of circuit boards in sequence.

[0024] This embodiment does not impose any formal limitation on the shape, material, structure, etc. of the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A circuit board processing technology without internal pins, which is completed by a CNC gong machine and a workbench of the CNC gong machine. The workbench of the CNC gong machine is provided with at least two groups of peripheral positioning holes, which enclose a positioning angle, and a fixture pin is provided in the peripheral positioning hole, characterized in that: The following steps are involved: S1, take a large plate and position the large plate on the workbench of the CNC gong machine through two sets of jig pins of peripheral positioning holes; S2. Use a CNC gong machine to perform gong cutting on the large sheet material in a direction from away from the positioning angle to close to the positioning angle to gong cut out at least one first type of circuit board, wherein the first type of circuit board has A+B edges, the Ath edge of the first type of circuit board is the edge closest to the positioning angle, the CNC gong machine first performs gong cutting on the Bth edge of the first type of circuit board, and then the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board, where A is 1 and B is a positive integer greater than or equal to 2; S3, when the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board to the remaining set distance between the Ath edge of the first type of circuit board and the large plate, the presser foot device of the CNC gong machine is started to simultaneously press the large plate and the first type of circuit board on the workbench, and then the gong cutting speed of the CNC gong machine is adjusted until the Ath edge of the first type of circuit board is completely separated from the large plate; S4, pausing the CNC gong machine and removing the first type of circuit board; S5. Use a CNC gong machine to perform gong cutting on the large sheet material in a direction from away from the positioning angle to close to the positioning angle to gong cut out at least one Nth type of circuit board, wherein the Nth type of circuit board has C+D edges, the Cth edge of the Nth type of circuit board is the edge closest to the positioning angle, the CNC gong machine first performs gong cutting on the Dth edge of the Nth type of circuit board, and then the CNC gong machine performs gong cutting on the Cth edge of the Nth type of circuit board, C is 1, D is a positive integer greater than or equal to 2, and N is a positive integer greater than or equal to 2; S6, when the CNC gong machine performs gong cutting on the Cth edge of the Nth type of circuit board to the remaining set distance between the Cth edge of the Nth type of circuit board and the large plate, the presser foot device of the CNC gong machine is started to press the large plate and the Nth type of circuit board on the workbench at the same time, and then the gong cutting speed of the CNC gong machine is adjusted until the Cth edge of the Nth type of circuit board is completely separated from the large plate; S7, pause the CNC gong machine and remove the Nth type of circuit board; S8. Remove the remaining waste of the large plate material after gong cutting on the workbench of the CNC gong machine, and continue to start the CNC gong machine until all types of circuit boards are gong cut.

2. The circuit board processing technology without inner pins according to claim 1 is characterized in that: The positioning angle is a right angle.

3. The circuit board processing technology without inner pins according to claim 1 is characterized in that: When the first type of circuit board is a quadrilateral circuit board, B is 3 and the B sides of the first type of circuit board are B1 side, B2 side and B3 side, wherein B1 side and B3 side are connected to the two ends of the Ath side of the first type of circuit board, and B2 side is located between B1 side and B3 side. In S2, the CNC gong machine first selects an arc starting point or a straight line starting point at the angle between the Ath side and the B1 side of the first type of circuit board to cut, and then the CNC gong machine processes the B1 side of the first type of circuit board, then the CNC gong machine processes the B2 side of the first type of circuit board, and then the CNC gong machine processes the B3 side of the first type of circuit board, and then the CNC gong machine completes the knife closing at the angle between the Ath side and the B3 side of the first type of circuit board, pauses the CNC gong machine, and then starts the CNC gong machine to perform gong cutting on the Ath side of the first type of circuit board; When the Nth type of circuit board is a quadrilateral circuit board, D is 3 and the D sides of the Nth type of circuit board are D1, D2 and D3 respectively, wherein D1 and D3 are connected to the two ends of the Cth side of the Nth type of circuit board, and D2 is located between D1 and D3. In S5, the CNC gong machine first selects an arc starting point or a straight line starting point at the angle between the Cth side and the D1 side of the Nth type of circuit board to cut, and then the CNC gong machine processes the D1 side of the Nth type of circuit board, then the CNC gong machine processes the D2 side of the Nth type of circuit board, and then the CNC gong machine processes the D3 side of the Nth type of circuit board, and then the CNC gong machine completes the knife closing at the angle between the Cth side and the D3 side of the Nth type of circuit board, pauses the CNC gong machine, and then starts the CNC gong machine to perform gong cutting on the Cth side of the Nth type of circuit board.

4. The circuit board processing technology without inner pins according to claim 1 is characterized in that: When there are two or more first-type circuit boards in S2, the CNC gong machine first completes gong cutting processing on the Bth edge of all first-type circuit boards in sequence, and then completes gong cutting processing on the Ath edge of all first-type circuit boards in sequence; When there are two or more Nth type circuit boards in S5, the CNC guillotine cutting machine first sequentially completes the guillotine cutting process on the Dth edges of all the Nth type circuit boards and then sequentially completes the guillotine cutting process on the Cth edges of all the Nth type circuit boards.

5. A circuit board processing technology without internal pins, which is completed by a CNC gong machine and a workbench of the CNC gong machine. The workbench of the CNC gong machine is provided with at least two groups of peripheral positioning holes, which enclose a positioning angle, and a fixture pin is provided in the peripheral positioning hole, characterized in that: The following steps are involved: S1, take a large plate and position the large plate on the workbench of the CNC gong machine through two sets of jig pins of peripheral positioning holes; S2. Use a CNC gong machine to perform gong cutting on the large sheet material in a direction from away from the positioning angle to close to the positioning angle to gong cut out at least one first type of circuit board, wherein the first type of circuit board has A+B edges, the Ath edge of the first type of circuit board is the edge closest to the positioning angle, the CNC gong machine first performs gong cutting on the Bth edge of the first type of circuit board, and then the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board, where A is 1 and B is a positive integer greater than or equal to 2; S3, when the CNC gong machine performs gong cutting on the Ath edge of the first type of circuit board to the remaining set distance between the Ath edge of the first type of circuit board and the large plate, the presser foot device of the CNC gong machine is started to simultaneously press the large plate and the first type of circuit board on the workbench, and then the gong cutting speed of the CNC gong machine is adjusted until the Ath edge of the first type of circuit board is completely separated from the large plate; S4, pausing the CNC gong machine and removing the first type of circuit board; S5. Remove the remaining waste from the large sheet material after gong cutting on the workbench of the CNC gong machine.

6. The circuit board processing technology without inner pins according to claim 5 is characterized in that: When the first type of circuit board is a quadrilateral circuit board, B is 3 and the B sides of the first type of circuit board are B1, B2 and B3, respectively, wherein B1 and B3 are connected to the two ends of the Ath side of the first type of circuit board, and B2 is located between B1 and B3. In S2, the CNC gong machine first selects an arc starting point or a straight line starting point at the angle between the Ath side and the B1 side of the first type of circuit board to cut, and then the CNC gong machine processes the B1 side of the first type of circuit board, then the CNC gong machine processes the B2 side of the first type of circuit board, and then the CNC gong machine processes the B3 side of the first type of circuit board, and then the CNC gong machine completes the knife closing at the angle between the Ath side and the B3 side of the first type of circuit board, pauses the CNC gong machine, and then starts the CNC gong machine to perform gong cutting on the Ath side of the first type of circuit board.

7. The circuit board processing technology without inner pins according to claim 5 is characterized in that: When there are two or more first type circuit boards in S2, the CNC guillotine cutting machine first sequentially completes guillotine cutting processing on the Bth edge of all first type circuit boards and then sequentially completes guillotine cutting processing on the Ath edge of all first type circuit boards.

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