A micro-engraving repair machine for detecting and repairing short circuits on PCB boards

Abstract

The present invention provides a micro-engraving repair machine for detecting and repairing short circuits on a PCB board, which includes a main control console, a processing table, a support frame, a first driving device, a first sliding platform, a second driving device, a second sliding platform, a first imaging device, a processing device, a tool alignment device and a third driving device. The first imaging device and the processing device are both oriented towards the processing table, and the main control console is electrically connected to the first driving device, the second driving device, the first imaging device, the processing device, the tool alignment device and the third driving device respectively. The micro-engraving repair machine for detecting and repairing short circuits on a PCB board can effectively solve the problem that it is difficult to repair the surface short circuit caused by large residual copper, metal debris or contact between adjacent metals during printing inside the previous PCB board, thus effectively saving the material cost of enterprises.

Description

Technical Field

[0001] The present invention relates to the technical field of engraving machines, and in particular to a micro-engraving repair machine for detecting and repairing short circuits on PCB boards. Background Art

[0002] For various electronic devices and equipment, whether it is a lightweight portable device or a large-scale machine, the PCB board installed inside is an indispensable component. With the increasing maturity of the printed circuit board industry, PCB boards manufactured using various different technologies have been successively introduced. Although manufacturers strictly view the improvement and control of product yield during the manufacturing process, it is difficult to ensure that the yield of the finished product remains in a perfect state of 100%;

[0003] With the progress of technology, nowadays the line width and spacing of printed PCB boards are getting smaller and smaller, and it is easier for short circuits to occur between two adjacent lines. The occurrence of short circuits on the PCB board will directly affect the normal use of the circuit. Therefore, when a short circuit occurs on the surface of the PCB board, targeted treatment can be directly carried out. When the short circuit area is inside the PCB board, the traditional repair method is to use a wire burning machine (fusing machine) to fuse the short circuit area. However, this repair method can only repair short circuits of fine residual copper inside the PCB board, and it is difficult to repair larger residual copper, metal debris inside the PCB board or surface short circuits caused by the contact of adjacent metals during printing. After the surface of the PCB board is short-circuited, most manufacturers dispose of it as scrap, and currently, the equipment for repairing surface short circuits on PCB boards in the market is extremely scarce;

[0004] Therefore, it is necessary to propose a micro-engraving repair machine for detecting and repairing short circuits on PCB boards to solve the problem of the scarcity of equipment for repairing surface short circuits on PCB boards in the market. Summary of the Invention

[0005] To solve the above problems, the present invention proposes a micro-engraving repair machine for detecting and repairing short circuits on PCB boards to more precisely solve the problem of the scarcity of equipment for repairing surface short circuits on PCB boards in the market.

[0006] The present invention is achieved through the following technical solutions:

[0007] The present invention provides a micro-engraving repair machine for detecting and repairing short circuits on a PCB board, which includes a main control console, a processing table, a support frame, a first driving device, a first sliding platform, a second driving device, a second sliding platform, a first imaging device, a processing device, a tool alignment device, and a third driving device. The support frame is fixedly connected to the surface of the main control console. The third driving device is fixedly connected to the main control console and is movably connected to the processing table. The support frame partially shields the processing table. The first driving device is fixedly connected to one side of the support frame. The first sliding platform is movably connected to the first driving device and is also movably connected to the support frame. The second driving device is fixedly connected to the first sliding platform. The second sliding platform is movably connected to the first sliding platform and is also movably connected to the second driving device. The first imaging device and the processing device are respectively fixedly connected to the second sliding platform. The first imaging device is located on one side of the processing device. Both the first imaging device and the processing device face the processing table. The tool alignment device is fixedly connected to the main control console, is located on one side of the support frame and close to the processing table. The main control console is electrically connected to the first driving device, the second driving device, the first imaging device, the processing device, the tool alignment device, and the third driving device. The first driving device can drive the first sliding platform to slide relative to the support frame, and then drive the second sliding platform to slide and stop above the processing table, so that the first imaging device can stay above the processing table and perform image detection on the external PCB board to be processed.

[0008] Further, the tool alignment device includes a second imaging device, a fixing frame, and a tool alignment prism. The second imaging device and the tool alignment prism are respectively fixedly connected to the upper surface of the fixing frame. The second imaging device faces the tool alignment prism. The second imaging device is electrically connected to the main control console.

[0009] Further, the tool alignment prism is provided with a light guiding inclined plane. The angle between the straight line connecting the center point of the second imaging device and the center point of the tool alignment prism and the light guiding inclined plane is 45 degrees.

[0010] Further, the tool alignment prism is provided with a tool alignment hole, and the tool alignment hole is located on a straight line perpendicular to the light guiding inclined plane.

[0011] Further, the tool alignment device includes a light transmitting block. The light transmitting block is fixedly connected to the fixing frame. The light transmitting block is located on one side of the tool alignment prism. The connection line between the center of the light transmitting block and the center of the tool alignment prism is perpendicular to the connection line between the center of the tool alignment prism and the center of the second imaging device.

[0012] Further, the light-transmitting block is provided with a light-transmitting hole, and the light-transmitting hole is aligned with the tool setting prism.

[0013] Further, the micro-engraving repair machine for detecting and repairing short circuits of PCB boards includes a shielding plate, the shielding plate is fixedly connected to the second sliding platform, and the shielding plate partially shields the first imaging device.

[0014] Further, the shielding plate is provided with an observation hole, and the observation hole is aligned with the first imaging device.

[0015] Further, the processing device includes a high-speed motor, a fastener, and a clamping member for clamping an external milling cutter. The high-speed motor is electrically connected to the main control machine table. The fastener is fixedly connected to the second sliding platform. The high-speed motor penetrates through the fastener and is fixedly connected to the fastener. The clamping member is fixedly connected to the rotating shaft of the high-speed motor.

[0016] Further, the processing table is provided with a plurality of placement grooves, and the plurality of placement grooves are arranged in sequence.

[0017] Advantages of the present invention:

[0018] The present invention provides a micro-engraving repair machine for detecting and repairing short circuits on a PCB board, which includes a main control console, a processing table, a support frame, a first driving device, a first sliding platform, a second driving device, a second sliding platform, a first imaging device, a processing device, a tool alignment device and a third driving device. The support frame is fixedly connected to the surface of the main control console. The third driving device is fixedly connected to the main control console and is movably connected to the processing table. The support frame partially shields the processing table. The first driving device is fixedly connected to one side of the support frame. The first sliding platform is movably connected to the first driving device and is also movably connected to the support frame. The second driving device is fixedly connected to the first sliding platform. The second sliding platform is movably connected to the first sliding platform and is also movably connected to the second driving device. The first imaging device and the processing device are respectively fixedly connected to the second sliding platform. The first imaging device is located on one side of the processing device. Both the first imaging device and the processing device face the processing table. The tool alignment device is fixedly connected to the main control console and is located on one side of the support frame and close to the processing table. The main control console is electrically connected to the first driving device, the second driving device, the first imaging device, the processing device, the tool alignment device and the third driving device respectively. The first driving device can drive the first sliding platform to slide relative to the support frame, and then drive the second sliding platform to slide and stay above the processing table, so that the first imaging device can stay above the processing table and perform image detection on the external PCB board to be processed. After the external PCB board to be processed is placed on the processing table, the first imaging device first performs image detection on the external PCB board to be processed, and the image data after the image detection is sent to the main control console. After the main control console processes the data, it is sent to an external computer. After the worker determines the processing and repair position of the external PCB board to be processed, the processing program is started through the external computer to start the micro-engraving repair machine for detecting and repairing short circuits on the PCB board. After starting, the processing device processes and repairs the external PCB board to be processed according to the processing route preset by the worker. In summary, the micro-engraving repair machine for detecting and repairing short circuits on the PCB board can effectively solve the problem that it is difficult to repair the surface short circuit caused by large residual copper, metal debris or contact between adjacent metals during printing inside the previous PCB board, thus effectively saving the material cost of the enterprise. Brief Description of the Drawings

[0019] Figure 1 It is an overall schematic diagram of the micro-engraving repair machine for detecting and repairing short circuits on a PCB board proposed by the present invention;

[0020] Figure 2 It is a partial structural schematic diagram of the micro-engraving repair machine for detecting and repairing short circuits on a PCB board proposed by the present invention;

[0021] Figure 3 is Figure 1 A partial enlarged schematic diagram of label A;

[0022] Figure 4 For Figure 3 A partially enlarged schematic view of reference numeral B. Specific implementation manners

[0023] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0024] Please refer to Figures 1-4 , the present invention provides a micro-engraving repair machine for detecting and repairing short circuits on a PCB board, including a main control console 1, a processing table 2, a support frame 3, a first driving device 4, a first sliding platform 5, a second driving device 6, a second sliding platform 7, a first imaging device 8, a processing device 9, a tool alignment device 101 and a third driving device 102. The support frame 3 is fixedly connected to the surface of the main control console 1. The third driving device 102 is fixedly connected to the main control console 1 and is movably connected to the processing table 2. The support frame 3 partially shields the processing table 2. The first driving device 4 is fixedly connected to one side of the support frame 3. The first sliding platform 5 is movably connected to the first driving device 4 and is movably connected to the support frame 3. The second driving device 6 is fixedly connected to the first sliding platform 5. The second sliding platform 7 is movably connected to the first sliding platform 5. The second driving device 6 is movably connected to the second sliding platform 7. The first imaging device 8 and the processing device 9 are respectively fixedly connected to the second sliding platform 7. The first imaging device 8 is located on one side of the processing device 9. Both the first imaging device 8 and the processing device 9 face the processing table 2. The tool alignment device 9 is fixedly connected to the main control console 1. The tool alignment device 101 is located on one side of the support frame 3 and close to the processing table 2. The main control console 1 is electrically connected to the first driving device 4, the second driving device 6, the first imaging device 8, the processing device 9, the tool alignment device 101 and the third driving device 102 respectively. The first driving device 4 can drive the first sliding platform 5 to slide relative to the support frame 3, and then drive the second sliding platform 7 to slide and stop above the processing table 2, so that the first imaging device 8 can stop above the processing table 2 and perform image detection on the external PCB board to be processed.

[0025] In this embodiment:

[0026] The main control console 1 is used to provide a stable support structure for the support frame 3, the tool setting device 101, and the third driving device 102. At the same time, a main control module, a driving module, an image processing module, and a processing module are provided inside the main control console 1. The main control module is electrically connected to the driving module, the image processing module, and the processing module respectively. The main control module can receive and process the processing instructions sent by an external computer, and then send corresponding instructions to the driving module, the image processing module, and the processing module respectively. The driving module is used to issue corresponding instructions to the first driving device 4, the second driving device 6, and the third driving device 102. The image processing module can process the image information transmitted back by the first imaging device 8 and send the processed image information to the main control module. The processing module is used to issue corresponding instructions to the processing device 9;

[0027] The processing table 2 is used to provide a stable placement structure for an external PCB board to be processed;

[0028] The support frame 3 is used to provide a stable support structure for the first driving device 4 and the first sliding platform 5;

[0029] The first driving device 4 is a stepping motor, which is used to provide the power for the first sliding platform 5 to slide;

[0030] The first sliding platform 5 is used to provide a stable placement structure for the second driving device 6 and the second sliding platform 7;

[0031] The second driving device 6 is a stepping motor, which is used to provide the power for the second sliding platform 7 to slide;

[0032] The second sliding platform 7 is used to provide a stable placement structure for the first imaging device 8 and the processing device 9;

[0033] The first imaging device 8 is a high-definition camera, which is used to obtain the image information of the external PCB board to be processed placed on the processing table 2 and provide the image information for tool path editing for workers;

[0034] The processing device 9 is equipped with a micro milling cutter. When the micro milling cutter rotates at high speed, it can process and repair the large residual copper, metal debris inside the external PCB board to be processed, or the surface short circuit caused by the contact of adjacent metals during printing;

[0035] The tool setting device 101 is used to determine the origin position of the processing device 9 and provide a starting point for workers to edit the tool path;

[0036] The third driving device 102 is a combination of a stepping motor and a transmission mechanism, which is used to provide the power for the processing table 2 to slide;

[0037] Specifically, after the external PCB board to be processed is placed on the processing table, the first imaging device 8 first performs image detection on the external PCB board to be processed, and the image data after the image detection is sent to the main control console 1. After the main control console 1 processes the data, it is sent to an external computer. After the worker determines the processing and repair position of the external PCB board to be processed, the tool path of the processing device 3 is edited by editing the tool path program. After the tool path editing is completed, the processing program is started on the external computer. At this time, the micro-engraving repair machine originally used for detecting and repairing PCB board short circuits is started. After starting, the processing device 9 can process and repair the external PCB board to be processed according to the processing route preset by the worker;

[0038] After the processing device 9 completes the repair tool path movement, it will return to the tool setting device 101. At this time, the main control console 1 will issue another command to the first driving device 4. The first driving device 4 drives the first sliding platform 5 to slide relative to the support frame 3, so as to drive the first imaging device 8 to reach above the external PCB board that has completed processing. At this time, the first imaging device 8 obtains the image information of the processed external PCB board, and this image information is transmitted back to the main control console 1. Then the main control console 1 processes the image information and transmits it back to the external computer. If the worker confirms that the repair of the external PCB board is correct, the processing device 9 returns to the tool setting device 101 again. If the external PCB board is not repaired perfectly after processing, the processing device 9 is started again and processes and repairs the external PCB board along the previously edited tool path;

[0039] In summary, the micro-engraving repair machine originally used for detecting and repairing PCB board short circuits can effectively solve the problem that it is difficult to repair the surface short circuits caused by large residual copper, metal debris or the contact of adjacent metals during printing inside the previous PCB boards, thus effectively saving the material costs of enterprises.

[0040] Furthermore, the tool setting device 101 includes a second imaging device 1011, a fixing bracket 1012, and a tool setting prism 1013. The second imaging device 1011 and the tool setting prism 1013 are respectively fixedly connected to the upper surface of the fixing bracket 1012. The second imaging device 1011 faces the tool setting prism 1013, and the second imaging device 1011 is electrically connected to the main control console 1. A light guiding inclined surface 10131 is provided on the tool setting prism 1013. The angle between the straight line connecting the center point of the second imaging device 1011 and the center point of the tool setting prism 1013 and the light guiding inclined surface 10131 is 45 degrees. A tool setting hole 10132 is provided on the tool setting prism 1013, and the tool setting hole 10132 is located on a straight line perpendicular to the light guiding inclined surface 10131. The tool setting device 101 includes a light transmitting block 1014. The light transmitting block 1014 is fixedly connected to the fixing bracket 1012. The light transmitting block 1014 is located on one side of the tool setting prism 1013. The connection line between the center of the light transmitting block 1014 and the center of the tool setting prism 1013 is perpendicular to the connection line between the center of the tool setting prism 1013 and the center of the second imaging device 1011. A light transmitting hole 10141 is provided on the light transmitting block 1014, and the light transmitting hole 10141 is aligned with the tool setting prism 1013.

[0041] In this embodiment:

[0042] The second imaging device 1011 is a high-definition camera, which is used to obtain the image information of the processing device 9 moved to the tool setting device 101. This image information can assist the worker to perform tool setting for the processing device 9, so as to determine the origin position of the processing device 9.

[0043] The fixing bracket 1012 is used to provide a stable placement platform for the second imaging device 1011, the tool setting prism 1013, and the light transmitting block 1014.

[0044] The tool setting prism 1013 is used to provide a structure for refracting light during tool setting for the processing device 9.

[0045] The light guiding inclined surface 10131 is used to reflect the light incident from the light transmitting block 1014 onto the lens of the second imaging device 1011.

[0046] The tool setting hole 10132 is used to provide a hole position for placing the micro milling cutter loaded on the processing device 9 during tool setting.

[0047] The light transmitting block 1014 is used to provide a pointing structure for the external light emitting device to point to the tool setting prism 1013.

[0048] The light transmitting hole 10141 is used to provide a channel for the light incident on the tool setting prism 1013 to enter.

[0049] Specifically, before processing an external PCB board, the processing device 9 needs to perform tool setting at the tool setting device 101. When performing tool setting, the micro milling cutter loaded on the processing device 9 moves above the tool setting prism 1013 and aligns with the tool setting hole 10132. Since the red light incident from the outside is reflected by the light guiding inclined surface 10131 to the second imaging device 1011, the image information transmitted back by the second imaging device 1011 is the image information with a red dot. When the micro milling cutter loaded on the processing device 9 moves to align with the tool setting hole 10132, the image information transmitted back by the second imaging device 1011 no longer has a red dot, and at this time, the tool setting is completed.

[0050] Furthermore, the micro engraving repair machine for detecting and repairing short circuits of PCB boards includes a shielding plate 103. The shielding plate 103 is fixedly connected to the second sliding platform 7, and the shielding plate 103 partially shields the first imaging device 8; an observation hole 1031 is provided on the shielding plate 103, and the observation hole 1031 is aligned with the first imaging device 8.

[0051] In this embodiment:

[0052] The shielding plate 103 is used to provide a structure for the first imaging device 8 to block the light reflected from the external PCB board to be processed, so that the clarity of the image information obtained by the first imaging device 8 is better;

[0053] The observation hole 1031 is used to provide a channel for the first imaging device 8 to observe the external PCB board to be processed.

[0054] Furthermore, the processing device 9 includes a high-speed motor 91, a fastener 92, and a clamping member 93 for clamping an external milling cutter. The high-speed motor 91 is electrically connected to the main control machine table 1. The fastener 92 is fixedly connected to the second sliding platform 7. The high-speed motor 91 passes through the fastener 92 and is fixedly connected to the fastener 92. The clamping member 93 is fixedly connected to the rotating shaft of the high-speed motor 91; a plurality of placement grooves 21 are provided on the processing table 2, and the plurality of placement grooves 21 are arranged in sequence.

[0055] In this embodiment:

[0056] The high-speed motor 91 is a direct current brushless motor and is used to drive the clamping member 93 to rotate;

[0057] The fastener 92 is used to firmly fix the high-speed motor 91 on the second sliding platform 7;

[0058] The clamping member 93 is used to clamp an external micro milling cutter;

[0059] The placement groove 21 is used to provide a placement space for the external PCB board to be processed.

[0060] Certainly, the present invention may also have many other embodiments. Based on this embodiment, other embodiments obtained by those of ordinary skill in the art without any creative work fall within the scope of protection of the present invention.

Claims

1. A micro-carving repair machine for detecting and repairing short circuits on PCB boards, characterized in that: The present invention comprises a main control machine, a processing table, a support frame, a first driving device, a first sliding platform, a second driving device, a second sliding platform, a first camera device, a processing device, a tool setting device and a third driving device, wherein the support frame is fixedly connected to the surface of the main control machine, the third driving device is fixedly connected to the main control machine, the third driving device is movably connected to the processing table, the support frame partially blocks the processing table, the first driving device is fixedly connected to one side of the support frame, the first sliding platform is movably connected to the first driving device, the first sliding platform is movably connected to the support frame, the second driving device is fixedly connected to the first sliding platform, the second sliding platform is movably connected to the first sliding platform, the second driving device is movably connected to the second sliding platform, the The first camera device and the processing device are respectively fixedly connected to the second sliding platform, the first camera device is located on one side of the processing device, the first camera device and the processing device are both facing the processing table, the tool setting device is fixedly connected to the main control machine, the tool setting device is located on one side of the support frame and close to the processing table, the main control machine is respectively electrically connected to the first driving device, the second driving device, the first camera device, the processing device, the tool setting device and the third driving device, the first driving device can drive the first sliding platform to slide relative to the support frame, and then drive the second sliding platform to slide and stay above the processing table, so that the first camera device can stay above the processing table and perform image detection on the external PCB board to be processed; The tool setting device includes a second camera device, a fixing frame and a tool setting prism, wherein the second camera device and the tool setting prism are respectively fixedly connected to the upper surface of the fixing frame, the second camera device faces the tool setting prism, and the second camera device is electrically connected to the main control machine; The micro-carving repair machine for detecting and repairing short circuits of PCB boards includes a shielding plate, which is fixedly connected to the second sliding platform and partially shields the first camera device.

2. The micro-carving repair machine for detecting and repairing short circuits of PCB boards according to claim 1 is characterized in that: The knife-setting prism is provided with a light-guiding inclined surface, and the angle between the straight line connecting the center point of the second camera device and the center point of the knife-setting prism and the light-guiding inclined surface is 45 degrees.

3. The micro-carving repair machine for detecting and repairing short circuits of PCB boards according to claim 2, characterized in that: The tool setting prism is provided with a tool setting hole, and the tool setting hole is located on a straight line perpendicular to the light guiding inclined surface.

4. The micro-carving repair machine for detecting and repairing short circuits in PCB boards according to claim 1, characterized in that: The tool setting device includes a light-transmitting block, which is fixedly connected to the fixing frame. The light-transmitting block is located on one side of the tool setting prism, and the line connecting the center of the light-transmitting block and the center of the tool setting prism is perpendicular to the line connecting the center of the tool setting prism and the center of the second camera device.

5. The micro-carving repair machine for detecting and repairing short circuits of PCB boards according to claim 4, characterized in that: A light-transmitting hole is provided on the light-transmitting block, and the light-transmitting hole is aligned with the tool-setting prism.

6. The micro-carving repair machine for detecting and repairing short circuits of PCB boards according to claim 1, characterized in that: An observation hole is provided on the shielding plate, and the observation hole is aligned with the first camera device.

7. The micro-carving repair machine for detecting and repairing short circuits in PCB boards according to claim 1, characterized in that: The processing device includes a high-speed motor, a fastener and a clamping member for clamping an external milling cutter. The high-speed motor is electrically connected to the main control machine, the fastener is fixedly connected to the second sliding platform, the high-speed motor passes through the fastener and is fixedly connected to the fastener, and the clamping member is fixedly connected to the rotating shaft of the high-speed motor.

8. The micro-carving repair machine for detecting and repairing short circuits in PCB boards according to claim 1, characterized in that: The processing table is provided with a plurality of placement slots, and the plurality of placement slots are arranged in sequence.

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