Automatic detection device for PCB milling machine processing

By designing an automatic inspection device for PCB router processing, the device utilizes a power mechanism and inspection structure to automatically inspect circuit boards, solving the problem of the inability to self-inspect in existing technologies and achieving highly efficient automated inspection.

CN224455751UActive Publication Date: 2026-07-03HUIZHOU WEIDING ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU WEIDING ELECTRONICS CO LTD
Filing Date
2025-04-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing CNC milling machines cannot perform self-inspection when processing circuit boards, especially they cannot automatically detect the dimensions of circuit board holes, resulting in low inspection efficiency and the inability to achieve full inspection.

Method used

Design an automatic inspection device for PCB router processing, including a support frame, a power mechanism, a guide rail structure, a moving seat, an inspection structure, and a stabilizing frame structure. The power mechanism drives the moving seat to move along the guide rail structure, which in turn drives the inspection structure to automatically inspect each processing position of the PCB. The measuring probe and the spring rod are used to achieve automatic measurement of dimensions such as hole diameter.

Benefits of technology

It has enabled automated testing of circuit boards after processing, improved testing efficiency, can replace manual testing, meet full inspection requirements, and significantly improve testing results.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an automatic inspection device for PCB router processing, belonging to the technical field of circuit board processing equipment. It includes: a support frame, a power mechanism, a guide rail structure, a movable seat, a detection structure, and a stabilizing frame structure. The power mechanism is located on the upper part of the support frame, and the guide rail structure is located below the power mechanism on the side of the support frame. The movable seat is movably disposed within the guide rail structure, and the power mechanism is drivenly connected to the movable seat. The detection structure is connected below the movable seat, and the stabilizing frame structure is disposed on the side of the support frame, with the detection structure and the stabilizing frame structure being movably connected. This utility model's automatic inspection device for PCB router processing solves the technical problem of how to improve the inspection efficiency of circuit boards after router processing.
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Description

Technical Field

[0001] This utility model relates to the technical field of circuit board processing equipment, and in particular to an automatic detection device for PCB router processing. Background Technology

[0002] CNC routers are a precision machining process based on CNC technology, mainly used in the cutting, drilling, and shaping processes of PCB (Printed Circuit Board) manufacturing. CNC routers utilize CNC machine tools, commonly known as "computerized routers" or CNC machining centers, to automate the processing of PCBs; they use preset programs to control the tool path and complete operations such as cutting, drilling, and grooving.

[0003] Specifically, a CNC milling machine is an automated machining equipment based on CNC technology, mainly used for precision milling, cutting, drilling, and other operations, especially widely used in PCB manufacturing and metal processing. A CNC milling machine is a type of CNC machine tool that uses computer programs, such as G-code, to control the tool path, achieving high-precision and high-efficiency machining. Its core functions include cutting, drilling, milling, and shaping.

[0004] Based on this, Chinese patent CN207612473U discloses a CNC milling machine for PCB board manufacturing, comprising: a side seat, a protective cover, and a cutter; a rotating shaft is installed at the upper inner end of the side seat and the second side seat, and the side seat and the second side seat are connected to the rotating shaft through a bushing; the rotating shaft is provided with a cutter and an adjustment mechanism, and the rotating shaft is connected to the cutter through a fitting mechanism; an operating table is installed at the lower inner end of the side seat and the second side seat, and the operating table is connected to the side seat and the second side seat through a snap-fit ​​mechanism. This utility model, through structural improvements and in conjunction with existing technology, features adjustable lateral distance of the cutter, enabling the cutting of PCB boards of various sizes without burrs or rough edges, reducing production costs. Furthermore, the operating table has a lifting function, allowing adjustment according to the thickness of the PCB board. These advantages solve the problems and shortcomings of existing devices, making it more practical.

[0005] However, existing CNC milling machines still have a technical problem in their inability to perform self-inspection when processing circuit boards. Specifically, in the current process practice, although CNC milling machines can automate milling and drilling operations on circuit boards, they cannot automatically detect the processing positions of the circuit boards. For example, some circuit board assembly manufacturers require percentage-based inspection of dimensions such as hole diameters on the processed circuit boards; however, existing milling factories typically use manual sampling with go / no-go gauges to meet this requirement, which is both time-consuming and labor-intensive, and cannot achieve the design requirement of full inspection. Utility Model Content

[0006] Therefore, it is necessary to provide an automatic inspection device for PCB routing to address the technical problem of how to improve the inspection efficiency of circuit boards after routing.

[0007] An automatic inspection device for PCB router processing includes: a support frame, a power mechanism, a guide rail structure, a movable seat, a detection structure, and a stabilizing frame structure; the power mechanism is disposed on the upper part of the support frame, and the guide rail structure is disposed below the power mechanism on the side of the support frame; the movable seat is movably disposed within the guide rail structure, and the power mechanism is drivenly connected to the movable seat; the detection structure is connected below the movable seat, and the stabilizing frame structure is disposed on the side of the support frame, with the detection structure movably connected to the stabilizing frame structure.

[0008] Furthermore, the power mechanism includes a power support, a drive cylinder, a telescopic piston rod, and connecting parts.

[0009] Furthermore, the power bracket is located on the top of the support frame, and the drive cylinder is connected to the power bracket; the drive cylinder is drivenly connected to the telescopic piston rod, and the connecting piece is connected to one end of the telescopic piston rod, and the connecting piece connects the telescopic piston rod and the movable seat respectively.

[0010] Furthermore, the guide rail structure includes a pillow block and a limiting block.

[0011] Furthermore, the pillow block is disposed below the power support on the side of the pillow block, and two limiting blocks are disposed on the pillow block at a relatively interval; the movable seat is movably disposed between the pillow block and the limiting blocks.

[0012] Furthermore, the movable seat has a sliding seat, a connecting sleeve, and a snap-fit ​​connecting seat.

[0013] Furthermore, the sliding seat is movably disposed between the pillow block and the limiting block, and the connecting sleeve is disposed on the sliding seat, with the detection structure connected to the connecting sleeve; the snap-fit ​​connecting seat is disposed on the end side of the sliding seat, and the snap-fit ​​connecting seat is connected to the connecting member.

[0014] Furthermore, the detection structure includes a connecting sleeve, a detection sleeve, a measuring needle, a rebound rod, a detection needle, and several springs.

[0015] Furthermore, the connecting sleeve is connected to the connecting sleeve, the detection sleeve is disposed at the lower end of the connecting sleeve, and the measuring needle is disposed in the detection sleeve; the two rebound rods are respectively disposed opposite to each other on both sides of the detection sleeve, and each rebound rod is movably connected to the connecting sleeve.

[0016] Furthermore, the two detection needles are respectively disposed opposite to each other on both sides of the detection sleeve, and each detection needle is movably connected to the connecting sleeve; a plurality of springs are evenly distributed in the connecting sleeve, and each rebound rod and each detection needle is connected to a spring.

[0017] In summary, the automatic inspection device for PCB router processing of this utility model comprises a support frame, a power mechanism, a guide rail structure, a movable seat, a detection structure, and a stabilizing frame structure. The power mechanism is located on the upper part of the support frame, and the guide rail structure is disposed below the power mechanism on the side of the support frame. The movable seat is movably disposed within the guide rail structure, and the power mechanism is drivenly connected to the movable seat. The detection structure is connected below the movable seat, and the stabilizing frame structure is disposed on the side of the support frame, with the detection structure and the stabilizing frame structure being movably connected. This utility model provides an automatic inspection solution for various processing positions of a PCB, which can replace manual operation and automatically complete the inspection action, significantly improving the efficiency of automated inspection of circuit boards after router processing. Therefore, this utility model solves the technical problem of how to improve the inspection efficiency of circuit boards after router processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic detection device for PCB milling according to this utility model;

[0019] Figure 2 This is a schematic diagram of the automatic detection device for PCB milling from another direction.

[0020] Figure 3 This is an exploded view of the automatic detection device for PCB milling from another direction.

[0021] Figure 4 This is a cross-sectional view of the automatic detection device for PCB milling from another direction.

[0022] Figure 5 This is an exploded structural diagram of another part of the automatic detection device for PCB milling of this utility model. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] Please refer to the following: Figures 1 to 5 The present invention relates to an automatic detection device for PCB router processing, comprising: a support frame 1, a power mechanism 2, a guide rail structure 3, a movable seat 4, a detection structure 5, and a stabilizing frame structure 6; the power mechanism 2 is disposed on the upper part of the support frame 1, and the guide rail structure 3 is disposed below the power mechanism 2 on the side of the support frame 1; the movable seat 4 is movably disposed within the guide rail structure 3, and the power mechanism 2 is drivenly connected to the movable seat 4; the detection structure 5 is connected below the movable seat 4, and the stabilizing frame structure 6 is disposed on the side of the support frame 1, and the detection structure 5 is movably connected to the stabilizing frame structure 6.

[0030] Specifically, when the automatic detection device for PCB router processing of this utility model is in operation, it can be linked with an external router. For example, the automatic detection device for PCB router processing of this utility model can be installed inside the router. After the router completes drilling and other processing on the PCB, the power mechanism 2 of the automatic detection device for PCB router processing of this utility model starts according to a preset program and drives the moving base 4 to descend along the guide rail structure 3. Then, the moving base 4 drives the detection structure 5 to descend, and when the detection structure 5 descends, it can follow the guide rail structure 3. The stabilizing frame structure 6 is activated by limiting the movement of the detection structure 5, thereby making the downward movement of the detection structure 5 more stable and accurate. When the detection structure 5 is driven down to the preset position, it can detect the processing structure on the PCB. After completing one detection, the power mechanism 2 drives the moving seat 4 to move the detection structure 5 upward to reset. Then, the moving structure of the external router drives the PCB to rotate or move to another detection position. Then, the power mechanism 2 drives the detection structure 5 down again to detect the PCB. This continues until all positions on the PCB have been detected. Therefore, the automatic detection device for PCB router processing of this utility model proposes a scheme for automatically detecting each processing position of the PCB. It can replace manual labor and automatically complete the detection action, significantly improving the efficiency of automated detection of circuit boards after router processing.

[0031] Furthermore, the power mechanism 2 includes a power bracket 201, a drive cylinder 202, a telescopic piston rod 203, and a connecting member 204; the power bracket 201 is disposed on the top of the support frame 1, and the drive cylinder 202 is connected to the power bracket 201; the drive cylinder 202 is drivenly connected to the telescopic piston rod 203, and the connecting member 204 is connected to one end of the telescopic piston rod 203, and the connecting member 204 connects the telescopic piston rod 203 and the movable seat 4 respectively.

[0032] Furthermore, the guide rail structure 3 has a pillow block 301 and a limiting block 302; the pillow block 301 is disposed below the power support 201 on the side of the pillow block 301, and two limiting blocks 302 are disposed on the pillow block 301 at a distance from each other; the movable seat 4 is movably disposed between the pillow block 301 and the limiting block 302.

[0033] Furthermore, the movable seat 4 has a sliding seat 401, a connecting sleeve 402, and a snap-fit ​​connecting seat 403; the sliding seat 401 is movably disposed between the pillow block 301 and the limiting block 302, the connecting sleeve 402 is disposed on the sliding seat 401, and the detection structure 5 is connected to the connecting sleeve 402; the snap-fit ​​connecting seat 403 is disposed on the end side of the sliding seat 401, and the snap-fit ​​connecting seat 403 is connected to the connector 204.

[0034] Furthermore, the detection structure 5 includes a connecting sleeve 501, a detection sleeve 502, a measuring needle 503, a rebound rod 504, a detection needle 505, and several springs 506; the connecting sleeve 501 is connected to the connecting sleeve 402, the detection sleeve 502 is disposed at the lower end of the connecting sleeve 501, and the measuring needle 503 is disposed within the detection sleeve 502; two rebound rods 504 are respectively disposed opposite to each other on both sides of the detection sleeve 502, and each rebound rod 504 is movably connected to the connecting sleeve 501; two detection needles 505 are respectively disposed opposite to each other on both sides of the detection sleeve 502, and each detection needle 505 is movably connected to the connecting sleeve 501; several springs 506 are evenly distributed within the connecting sleeve 501, and each rebound rod 504 and each detection needle 505 is connected to one spring 506.

[0035] Furthermore, the stabilizer structure 6 has a sliding connection kit 601, a guide rod 602, and a connecting frame 603; the sliding connection kit 601 is sleeved on the connecting sleeve 501, and the two guide rods 602 are respectively arranged opposite to each other on both sides of the connecting kit 601. Each guide rod 602 connects the sliding connection kit 601 and the connecting frame 603 respectively, and the connecting frame 603 is arranged on the side of the support frame 1.

[0036] Specifically, when the drive cylinder 202 is activated, it can drive the telescopic piston rod 203 to extend or retract. Furthermore, the telescopic piston rod 203, through the connecting member 204, can drive the sliding seat 401 to move downwards or upwards to reset along the limits of the pillow block 301 and the limiting block 302. The sliding seat 401 is disposed between the pillow block 301 and the limiting block 302. The pillow block 301 can be a pad structure, and the channel formed between the limiting block 302 and the pillow block 301 can serve as the sliding limiting track for the sliding seat 401.

[0037] Furthermore, when the sliding seat 401 is driven, it can drive the connecting sleeve 501 to move downwards or upwards via the connecting sleeve 402. When the connecting sleeve 501 is driven, the sliding connecting kit 601 connected to its outer edge can move in the same direction as the connecting sleeve 501. A guide rod 602 is movably connected to each side of the sliding connecting kit 601, allowing the sliding connecting kit 601 to move in a limited position along the guide rod 602 when moving downwards or upwards. This reduces the shaking caused by the movement of the connecting sleeve 501, thereby improving the movement stability of the connecting sleeve 501.

[0038] Specifically, when it is necessary to measure the hole structure of a PCB after router processing, such as measuring the hole diameter, the connecting sleeve 501 descends to allow the measuring needle 503 to enter the corresponding hole structure. If the size is too small, the measuring needle 503 will not be able to enter the hole structure, and a corresponding potential change signal will be generated to the external host computer or other control module. If the size meets the minimum requirement, the measuring needle 503 will enter the hole structure. At this time, the spring rods 504 set on both sides of the detection sleeve 502 begin to abut against the surface of the external PCB. The connecting sleeve 501 continues to be driven downward until the detection needle 505 also begins to abut against the surface of the external PCB. Then, the two detection needles 505 output the corresponding potential signal to the external host computer or other control module. After the detection is completed, the connecting sleeve 501 is driven upward. At this time, the detection needle 505 and the spring rod 504 can be reset under the push of the spring 506.

[0039] More specifically, the measuring needle 503 can be fitted into the detection sleeve 502. If it is necessary to measure parameters of different apertures or other sizes, the measuring needles 503 of different specifications can be replaced from the detection sleeve 502.

[0040] In summary, the automatic inspection device for PCB router processing of this utility model comprises a support frame 1, a power mechanism 2, a guide rail structure 3, a movable seat 4, an inspection structure 5, and a stabilizing frame structure 6. The power mechanism 2 is located on the upper part of the support frame 1, and the guide rail structure 3 is located below the power mechanism 2 on the side of the support frame 1. The movable seat 4 is movably disposed within the guide rail structure 3, and the power mechanism 2 is drivenly connected to the movable seat 4. The inspection structure 5 is connected below the movable seat 4, and the stabilizing frame structure 6 is located on the side of the support frame 1, with the inspection structure 5 and the stabilizing frame structure 6 movably connected. This automatic inspection device for PCB router processing of this utility model proposes a scheme for automatically inspecting various processing positions of a PCB, which can replace manual labor and automatically complete the inspection action, significantly improving the automated inspection efficiency of circuit boards after router processing. Therefore, this automatic inspection device for PCB router processing of this utility model solves the technical problem of how to improve the inspection efficiency of circuit boards after router processing.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic detection device for PCB milling machining, characterized in that, It includes: a support frame (1), a power mechanism (2), a guide rail structure (3), a movable seat (4), a detection structure (5), and a stabilizing frame structure (6); the power mechanism (2) is provided on the upper part of the support frame (1), and the guide rail structure (3) is provided on the side of the support frame (1) below the power mechanism (2); the movable seat (4) is movably disposed in the guide rail structure (3), and the power mechanism (2) is drivenly connected to the movable seat (4); the detection structure (5) is connected to the movable seat (4), and the stabilizing frame structure (6) is provided on the side of the support frame (1), and the detection structure (5) is movably connected to the stabilizing frame structure (6).

2. The automatic detection device for PCB milling machine processing according to claim 1, characterized in that: The power mechanism (2) includes a power support (201), a drive cylinder (202), a telescopic piston rod (203), and a connector (204).

3. The automatic detection device for PCB milling machine processing according to claim 2, characterized in that: The power bracket (201) is disposed on the top of the support frame (1), and the drive cylinder (202) is connected to the power bracket (201); the drive cylinder (202) is drivenly connected to the telescopic piston rod (203), and the connector (204) is connected to one end of the telescopic piston rod (203), and the connector (204) connects the telescopic piston rod (203) and the movable seat (4) respectively.

4. The automatic detection device for PCB milling machine processing according to claim 3, characterized in that: The guide rail structure (3) has a pillow block (301) and a limiting block (302).

5. The automatic detection device for PCB milling machine processing according to claim 4, characterized in that: The pillow block (301) is disposed below the power support (201) on the side of the pillow block (301), and two limiting blocks (302) are disposed on the pillow block (301) at a distance from each other; the movable seat (4) is movably disposed between the pillow block (301) and the limiting blocks (302).

6. The automatic detection device for PCB milling machine processing according to claim 5, characterized in that: The movable seat (4) has a sliding seat (401), a connecting sleeve (402), and a snap-fit ​​connecting seat (403).

7. The automatic detection device for PCB milling machine processing according to claim 6, characterized in that: The sliding seat (401) is movably disposed between the pillow block (301) and the limiting block (302). The connecting sleeve (402) is disposed on the sliding seat (401). The detection structure (5) is connected to the connecting sleeve (402). The snap-fit ​​connecting seat (403) is disposed on the end side of the sliding seat (401). The snap-fit ​​connecting seat (403) is connected to the connector (204).

8. The automatic detection device for PCB milling machine processing according to claim 7, characterized in that: The detection structure (5) includes a connecting sleeve (501), a detection sleeve (502), a measuring needle (503), a rebound rod (504), a detection needle (505), and several springs (506).

9. The automatic detection device for PCB milling machine processing according to claim 8, characterized in that: The connecting sleeve (501) is connected to the connecting sleeve (402), the detection sleeve (502) is disposed at the lower end of the connecting sleeve (501), and the measuring needle (503) is disposed in the detection sleeve (502); the two rebound rods (504) are respectively disposed opposite to each other on both sides of the detection sleeve (502), and each rebound rod (504) is movably connected to the connecting sleeve (501).

10. The automatic detection device for PCB milling machine processing according to claim 9, characterized in that: Two detection needles (505) are oppositely arranged on two sides of the detection sleeve (502), and each detection needle (505) is movably connected with the connecting sleeve (501); a plurality of springs (506) are evenly arranged in the connecting sleeve (501), and each spring (506) is connected with the rebound rod (504) and the detection needle (505).