Routing machine for PCB (Printed Circuit Board) production

Abstract

The utility model relates to the technical field of PCB production and processing, and discloses a milling machine for PCB production, which comprises a milling cutter assembly, an XYZ moving mechanism and a platform surface for placing a PCB, and the milling cutter assembly is arranged above the platform surface through the XYZ moving mechanism; the milling cutter assembly comprises a cutter shaft, and a cutter is mounted at the bottom of the cutter shaft; a suction cover shell is coaxially arranged outside the cutter shaft, and the top of one side of the suction cover shell communicates with a suction pipe; a spray head is arranged on the other side of the suction housing and connected with one end of an injection pipe, and the other end of the injection pipe communicates with a dry ice powder supply pipe and a high-pressure gas supply pipe. According to the scheme, burrs on the PCB can be removed, water consumption can be reduced, and environmental protection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB boards, in particular to a gong machine for producing PCB boards. Background Art

[0002] Electronic products have higher and higher requirements for circuit boards, but the size requirements are getting smaller and smaller. Semi-hole PCB is becoming more and more common because of its convenient welding, small module area, and multiple functional requirements. Metal semi-hole (slot), after drilling and hole-forming, and then drilling again, the shape, finally retains half of the metallized hole, in simple terms, the metallized hole on the edge of the board is cut in half. The semi-metallized hole process on the edge of the board is also called stamp hole in the PCB industry. It can directly weld the hole edge with the main edge, which can save connectors and space. It usually appears in signal circuits.

[0003] Metallized half-hole PCB is prone to burrs during processing, which is a difficult problem in the processing procedures. In the secondary drilling process, the half-hole processing requires a large drilling area and a large amount of dust. After the secondary drilling, board powder is likely to remain in the half-PTH hole, which must be removed by high-pressure water washing. However, the manual high-pressure water washing method takes a long time to operate and requires a large amount of water, which is not conducive to environmental protection.

[0004] Therefore, a gong machine for PCB board production is proposed, which can remove burrs on PCB boards and can help remove residual board powder in processed holes, reduce water use, and be more environmentally friendly. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a gong machine for PCB board production, which is provided with a nozzle that can spray a mixture of high-pressure gas and dry ice powder. During the processing, burrs on the PCB board can be removed, and the board powder remaining in the processing hole can be removed, reducing the use of water and being more environmentally friendly.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A gong machine for producing PCB boards, comprising a gong knife assembly, an XYZ moving mechanism, and a platform surface for placing PCB boards, wherein the gong knife assembly is arranged above the platform surface through the XYZ moving mechanism; the gong knife assembly comprises a knife shaft, and a knife is installed at the bottom of the knife shaft; a suction cover shell is coaxially arranged outside the knife shaft, and a suction pipe is connected to the top of one side of the suction cover shell; a nozzle is arranged on the other side of the suction cover shell, and the nozzle is connected to one end of an injection pipe, and the other end of the injection pipe is connected to a dry ice powder supply pipe and a high-pressure gas supply pipe.

[0008] In a preferred embodiment of the present scheme, the other end of the injection pipe is connected to a gas-powder mixing chamber, and the powder input port and the gas input port of the gas-powder mixing chamber are connected to the dry ice powder supply pipe and the high-pressure gas supply pipe respectively.

[0009] In a preferred embodiment of the present scheme, the gong machine also includes a cabinet and a shell cover; the shell cover is arranged on the upper part of the cabinet, and an operation port is provided on the front side of the shell cover; the XYZ moving mechanism and the platform surface are both arranged inside the shell cover, and the platform surface is located on the top of the cabinet.

[0010] In a preferred embodiment of this solution, the operation port is obliquely opened on the front side of the housing, and a protective cover is hingedly connected to the top of the operation port in a transverse direction, and the protective cover is a transparent cover body, which is convenient for observation.

[0011] In a preferred embodiment of the present invention, a handle is further provided on the transparent cover to facilitate opening and closing the cover.

[0012] In a preferred embodiment of the present scheme, a bottom end of a spring support rod is provided on each side of the top of the operating port; the top end of the spring support rod is correspondingly connected to the protective cover to form support for the protective cover when the protective cover is opened.

[0013] In a preferred embodiment of the present scheme, the nozzle is arranged on the other side of the suction hood shell through a lifting mechanism; the lifting mechanism includes a mounting plate arranged on the other side of the suction hood shell, a lifting cylinder is provided on the mounting plate, a lifting and retracting end of the lifting cylinder is downwardly passed through the mounting plate and a fixed block is provided, and the nozzle is installed on the fixed block.

[0014] In a preferred embodiment of the present invention, a mounting plate is provided on the left and right sides of the exterior of the nozzle, and the nozzle is detachably mounted on the fixing block through the mounting plate and screws. The structure is simple and easy to disassemble and assemble.

[0015] In a preferred embodiment of the present invention, a set of magnetic switches are respectively provided at the top and bottom of the lifting cylinder; when the nozzle moves down to below the suction cover, the magnetic switch at the bottom of the lifting cylinder is closed, which can facilitate accurate positioning of the nozzle height.

[0016] The beneficial effects of the utility model are:

[0017] In this solution, a nozzle is arranged on one side of the tool, the nozzle is connected to one end of the injection tube, and the other end of the injection tube is connected to a gas-powder mixing chamber, the gas-powder mixing chamber is provided with a powder input port and a gas input port, the powder input port is connected to a dry ice powder supply pipe, and the gas input port is connected to a high-pressure gas supply pipe, so that the nozzle can spray a high-pressure gas-powder mixture onto the PCB board surface. After the gong cutter assembly has gonged some holes, the gong cutter assembly can be raised by the XYZ moving mechanism, and then the nozzle can be moved down to the bottom of the suction cover shell by the lifting mechanism, and the nozzle can be started to remove burrs on the PCB board surface, and the board powder remaining in the processing hole can also be flushed out, so that the solution does not need to consume a large amount of high-pressure water to wash the PCB board in the subsequent process, which is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of an enlarged view of the gong knife assembly of the utility model. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is further described in detail below in conjunction with specific embodiments, but the protection scope of the present utility model is not limited to the following.

[0021] Example

[0022] like Figure 1 , Figure 2 As shown, a gong machine for PCB board production includes a cabinet 1, two sets of gong knife assemblies 2, and two sets of XYZ moving mechanisms; wherein, a shell cover 101 is provided on the upper part of the cabinet 1, an operation port is provided on the front side of the shell cover 101, a platform surface 3 is provided inside the shell cover 101, the XYZ moving mechanism is installed behind the platform surface 3, the gong knife assembly 2 is arranged above the platform surface 3 through the XYZ moving mechanism, and a placement position for fixing the PCB board is provided on the front side of the platform surface 3 corresponding to the gong knife assembly 2.

[0023] Specifically, in the present embodiment, the gong cutter assembly 2 comprises a cutter shaft, and a cutter is installed at the bottom of the cutter shaft; a suction cover shell 5 is coaxially provided on the outside of the cutter shaft, and a suction pipe 6 is connected to the top of one side of the suction cover shell 5 to suck out a large amount of residue and dust generated during the gong drilling process; a nozzle 7 is provided on the other side of the suction cover shell 5, and the nozzle 7 is connected to one end of an injection pipe 8, and the other end of the injection pipe 8 is connected to a dry ice powder supply pipe and a high-pressure gas supply pipe. A high-pressure gas-powder mixture can be sprayed onto the PCB board surface through the nozzle. After the gong cutter assembly has gonged some holes, the nozzle can be started to remove burrs on the PCB board and residual board powder in the holes.

[0024] Furthermore, in this embodiment, the injection pipe 8 is connected to a gas-powder mixing chamber, and the powder input port and the gas input port of the gas-powder mixing chamber are connected to the dry ice powder supply pipe and the high-pressure gas supply pipe respectively.

[0025] To prevent the operator from inhaling dust, the operation port of this embodiment is obliquely opened on the front side of the shell cover 101, and a protective cover 102 is hingedly connected to the top of the operation port; and the protective cover 102 is a transparent cover body to facilitate observation by the operator.

[0026] In this embodiment, the bottom ends of the spring support rods 103 are respectively disposed on both sides of the top of the operation port; the top ends of the spring support rods 103 are correspondingly connected to the protection cover 102 to support the protection cover 102 .

[0027] Furthermore, in this embodiment, a handle is provided at the front end of the protective cover 102 for facilitating opening and closing the protective cover.

[0028] Further, refer to Figure 2 As shown, in this embodiment, the nozzle 7 is arranged on the other side of the suction hood shell 5 through a lifting mechanism; the lifting mechanism includes a mounting plate arranged on the other side of the suction hood shell 5, and a lifting cylinder 9 is provided on the mounting plate, and a fixing block 10 is provided after the lifting and retracting end of the lifting cylinder 9 passes downward through the mounting plate; a mounting plate is respectively provided on the left and right sides of the outside of the nozzle 7, and the nozzle 7 is detachably mounted on the fixing block 10 through the mounting plate and via screws.

[0029] In this embodiment, a group of magnetic switches are respectively provided at the top and bottom of the lifting cylinder 9 to facilitate accurate positioning of the height position of the nozzle.

[0030] It should be noted that the XYZ moving mechanism in this embodiment is a common structure on existing gong machines, which is used to move the gong knife assembly 2 in three-dimensional space and will not be elaborated in detail in this embodiment.

[0031] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A gong machine for PCB board production, characterized in that: It comprises a gong cutter assembly (2), an XYZ moving mechanism, and a platform surface (3) for placing a PCB board, wherein the gong cutter assembly (2) is arranged above the platform surface (3) via the XYZ moving mechanism; The gong knife assembly (2) comprises a knife shaft, and a knife is installed at the bottom of the knife shaft; A suction cover (5) is coaxially arranged outside the blade shaft, and a suction pipe (6) is connected to the top of one side of the suction cover (5); A nozzle (7) is provided on the other side of the suction housing (5), the nozzle (7) is connected to one end of a spray pipe (8), and the other end of the spray pipe (8) is connected to a dry ice powder supply pipe and a high-pressure gas supply pipe.

2. A gong machine for PCB board production according to claim 1, characterized in that: The other end of the injection pipe (8) is connected to a gas-powder mixing chamber, and the powder input port and the gas input port of the gas-powder mixing chamber are connected to a dry ice powder supply pipe and a high-pressure gas supply pipe respectively.

3. A gong machine for PCB board production according to claim 1, characterized in that: The gong machine also includes a cabinet (1) and a shell cover (101); The shell cover (101) is arranged on the upper part of the cabinet (1), and an operation port is arranged on the front side of the shell cover (101); The XYZ moving mechanism and the platform surface (3) are both arranged inside the shell cover (101), and the platform surface (3) is located on the top of the cabinet (1).

4. A gong machine for PCB board production according to claim 3, characterized in that: The operation port is obliquely opened on the front side of the shell cover (101), and a protective cover (102) is laterally hinged on the top of the operation port; Furthermore, the protective cover (102) is a transparent cover.

5. The gong machine for PCB board production according to claim 3, characterized in that: The bottom ends of the spring support rods (103) are respectively provided on both sides of the top of the operation port; The top end of the spring support rod (103) is correspondingly connected to the protective cover (102) to form support for the protective cover (102) when the protective cover (102) is opened.

6. A gong machine for PCB board production according to any one of claims 1 to 5, characterized in that: The spray head (7) is arranged on the other side of the suction housing (5) through a lifting mechanism; The lifting mechanism comprises a mounting plate arranged on the other side of the suction cover shell (5), a lifting cylinder (9) is arranged on the mounting plate, a fixing block (10) is arranged after the lifting and retracting end of the lifting cylinder (9) passes downward through the mounting plate, and the nozzle (7) is mounted on the fixing block (10).

7. The gong machine for PCB board production according to claim 1, characterized in that: A mounting plate is provided on the left and right sides of the outside of the spray head (7), respectively. The spray head (7) is detachably mounted on the fixing block (10) via the mounting plate and screws.

8. The gong machine for PCB board production according to claim 6, characterized in that: A group of magnetic switches are respectively provided at the top and bottom ends of the lifting cylinder (9); When the spray head (7) moves downward to below the suction housing (5), the magnetic switch located at the bottom of the lifting cylinder (9) is closed.

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