Visual identification device and processing equipment

Abstract

The utility model relates to a visual identification device and processing equipment. The visual identification device comprises a first supporting module, a second supporting module, a driving module and a camera module, the driving module is arranged on the first supporting module; the camera module is arranged on the second supporting module and is used for shooting the PCB; the driving module is connected with the second supporting module and used for driving the second supporting module to reciprocate along the optical axis of the camera module, and the second supporting module comprises a first supporting block; a shielding hole is formed in the first supporting block and penetrates through the first supporting block along the optical axis of the camera module; the image acquisition end of the camera module is located in the shielding hole. When the thicknesses of the PCBs are different, the position of the camera module in the optical axis direction of the camera module can be adjusted, so that the distance between the camera module and the PCBs is proper, the images of the PCBs shot by the camera module are clear, and the adaptability of the visual identification device to the PCBs with different thicknesses is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of PCB processing equipment, and in particular relates to a visual recognition device and processing equipment. Background Technology

[0002] With the continuous advancement of the information industry, the speed and frequency of digital signal transmission are getting faster and faster. The traditional method of connecting different layers of circuits with electroplated through holes on PCB boards can no longer meet the needs of such high-frequency circuits.

[0003] To meet the needs of high-frequency circuits, PCB design and manufacturing plants have developed a 3D back-drilling process. Its main feature is the removal of unwanted copper layers from the walls of plated through-holes connecting different layers of circuitry. The process involves first machining through-holes on the PCB board—a process generally referred to as "one-drill" in the PCB manufacturing industry—and then electroplating the through-holes. Finally, the unwanted copper layers are removed by drilling (with controlled drilling depth). This drilling process is generally known as 3D back-drilling in the PCB manufacturing industry.

[0004] According to the requirements of 3D back drilling, the primary drill hole and the 3D back drill hole must be coaxial to ensure the drilling quality. After the primary drill, the PCB board must be removed from the drilling machine table, and after electroplating and other processes, it is reinstalled on the drilling machine table for 3D back drilling. During the electroplating process and reinstallation, the board may experience expansion and contraction, and the positioning error during reinstallation may cause the actual drilling position to deviate from the theoretical machine coordinate position. This results in the back drill hole being misaligned with the primary drill hole during 3D back drilling, affecting the 3D back drilling quality and even causing the PCB board to be scrapped.

[0005] To solve this problem, in the prior art, a vision recognition device is installed at the output end of the drilling machine. The vision recognition device identifies the Mark points or positioning holes set around the PCB board. By reading the coordinates of the Mark points or positioning holes and comparing the theoretical distance and actual distance of the Mark points or positioning holes in the X and Y directions, the expansion and contraction values ​​of the PCB board in the X and Y directions are calculated, thereby determining the theoretical position of all actual drilled holes on the worktable.

[0006] However, existing visual recognition devices have poor adaptability to PCB boards of different thicknesses and cannot meet different processing requirements. Utility Model Content

[0007] The technical problem to be solved by this utility model is that, in the existing technology, visual recognition devices have poor adaptability to PCB boards of different thicknesses and cannot meet different processing requirements. Therefore, this utility model provides a visual recognition device and processing equipment.

[0008] To address the aforementioned technical problems, this utility model provides a visual recognition device, including a first support module, a second support module, a drive module, and a camera module. The drive module is disposed on the first support module; the camera module is disposed on the second support module and is used to photograph a PCB board. The drive module is connected to the second support module and is used to drive the second support module to reciprocate along the optical axis of the camera module, causing the camera module to move closer to or further away from the PCB board, thereby adjusting the distance between the camera module and the PCB board. The second support module includes a first support block; the first support block has a blocking hole that passes through the first support block along the optical axis of the camera module; the image acquisition end of the camera module is located within the blocking hole.

[0009] Optionally, the second support module further includes a drive plate and a second support block; the drive plate is connected to the drive module; the first support block and the second support block are both disposed on the drive plate and are spaced apart along the optical axis of the camera module; the camera module includes a camera and a lens, one end of the camera is connected to the lens, and the end of the lens facing away from the camera is the image acquisition end; the first support block is connected to the lens, and the second support block is connected to the camera module.

[0010] Optionally, the second support block is provided with a positioning structure, which is used to define the connection position of the camera on the second support block; the positioning structure includes a positioning groove, in which the camera is mounted; the positioning groove is disposed on the surface of the second support block opposite to the drive plate; the positioning groove extends along the optical axis of the camera module to the surface of the second support block near the first support block; and / or, the positioning groove extends along the optical axis of the camera module to the surface of the second support block opposite to the first support block.

[0011] Optionally, the drive module includes a motor, a lead screw mechanism, and a guide mechanism; the motor is connected to the first support module and to the lead screw of the lead screw mechanism; the nut of the lead screw mechanism is connected to the drive plate, and the nut of the lead screw mechanism, the first support block, and the second support block are disposed on the same side of the drive plate; the motor drives the drive plate to reciprocate along the optical axis of the camera module through the lead screw mechanism; the guide mechanism is disposed between the first support module and the drive plate, and is respectively connected to the first support module and the drive plate, for guiding the movement of the drive plate along the optical axis of the camera module.

[0012] Optionally, the nut of the lead screw mechanism, the first support block, and the second support block are all disposed on the side of the drive plate away from the first support module; along the optical axis of the camera module, the nut of the lead screw mechanism is located on the side of the second support block away from the first support block; a clearance hole is provided on the surface of the second support block near the nut of the lead screw mechanism, and the lead screw of the lead screw mechanism can extend into the clearance hole.

[0013] Optionally, the visual recognition device further includes a light source for projecting light onto the PCB board; the light source is disposed on the end face of the first support block along the axial direction of the blocking hole; wherein, when the camera module moves along the direction from the first support block to the light source, it approaches the PCB board; when the camera module moves along the direction from the light source to the first support block, it moves away from the PCB board.

[0014] Optionally, the light source is a ring light source and surrounds the shielding hole.

[0015] Optionally, the visual recognition device further includes a sensor and a sensing sheet; one of the sensor and the sensing sheet is connected to the first support module, and the other is connected to the second support module; when the driving module drives the camera module to approach the PCB board, the sensor can detect the sensing sheet to limit the maximum displacement of the camera module when it approaches the PCB board.

[0016] Optionally, the visual recognition device further includes a limiting block disposed on the first support module; when the driving module drives the camera module to approach the PCB board, after the sensor detects the sensing sheet, the limiting block can abut against the second support module and / or the driving module to prevent the camera module from approaching the PCB board.

[0017] Optionally, the drive module is configured as an electrically adjustable module and is adapted to connect to a control device; the first support module includes a support plate and a mounting block; in a first direction, the support plate has a first surface and a second surface disposed opposite to each other; the mounting block is disposed on the first surface; the drive module is disposed on the second surface; in a second direction, neither of the opposite ends of the mounting block protrudes from the support plate; in a third direction, both opposite ends of the mounting block protrude from the support plate, and the portion of the mounting block protruding from the support plate is used to connect to a supporting object; the first direction, the second direction, and the third direction are perpendicular to each other, and the second direction is parallel to the optical axis of the camera module.

[0018] To solve the above-mentioned technical problems, this utility model embodiment also provides a processing device, including a base, a worktable, a processing device, and a visual recognition device as described in any one of the above; the worktable, the processing device, and the visual recognition device are all connected to the base; the visual recognition device is used to photograph the PCB board placed on the worktable; the processing device is used to process the PCB board placed on the worktable.

[0019] Optionally, the processing device is a drilling device, which is used to drill holes in the PCB board placed on the worktable.

[0020] Optionally, the processing equipment further includes a support frame, a first driving device, and a second driving device; the first driving device is disposed on the base and connected to the worktable, and is used to drive the worktable to reciprocate along a first direction; the support frame is disposed on the base, and the second driving device is disposed on the support frame and spaced apart from the base in a second direction; the processing device and the visual recognition device are both connected to the second driving device, and the second driving device is used to drive the processing device and the visual recognition device to reciprocate along a third direction; the first direction, the second direction, and the third direction are perpendicular to each other, and the second direction is parallel to the optical axis of the camera module.

[0021] Optionally, multiple visual recognition devices, worktables, processing devices, first driving devices, and second driving devices are provided; multiple visual recognition devices are spaced apart along the second direction; multiple worktables are spaced apart along the second direction; multiple processing devices are spaced apart along the second direction; multiple first driving devices are spaced apart along the second direction; multiple second driving devices are spaced apart along the second direction; the visual recognition devices, worktables, processing devices, first driving devices, and second driving devices correspond one-to-one; the first driving device is used to drive the worktable corresponding to it to reciprocate along the first direction; the second driving device is used to drive the processing device and the visual recognition device corresponding to it to reciprocate along the third direction; the visual recognition device is used to capture images of the PCB board placed on the worktable corresponding to it; the processing device is used to process the PCB board placed on the worktable corresponding to it.

[0022] In the visual recognition device and processing equipment provided in this embodiment of the invention, when the drive module drives the second support module to move along the optical axis of the camera module, it can also drive the camera module to move along its own optical axis, thus enabling adjustment of the focal length of the camera module. Specifically, when the PCB board has different thicknesses, the position of the camera module along its optical axis can be adjusted, thereby adjusting the distance between the camera module and the PCB board. This ensures a suitable distance between the camera module and the PCB board, resulting in a clear image of the PCB board captured by the camera module, improving the accuracy of subsequent PCB board recognition. This enhances the adaptability of the visual recognition device to PCB boards of different thicknesses.

[0023] In addition, placing the image acquisition end of the camera module inside the shielding hole can effectively prevent dust and other contaminants from entering the camera module from the end face of the image acquisition end, thereby ensuring improved imaging performance of the camera module. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a visual recognition device provided in an embodiment of the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of a visual recognition device provided in an embodiment of the present invention. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the structure of a visual recognition device provided in an embodiment of the present invention. Figure 3 ;

[0027] Figure 4 This is a schematic diagram of the structure of a processing device provided in one embodiment of the present invention.

[0028] The reference numerals in the accompanying drawings are as follows:

[0029] 10. Visual recognition device; 20. Workbench; 30. Base; 40. Processing device; 50. Support frame; 60. First drive device; 70. Second drive device;

[0030] 1. First support module; 11. Support plate; 111. First surface; 112. Second surface; 12. Mounting block;

[0031] 2. Second support module; 21. First support block; 211. Blocking hole; 22. Drive plate; 23. Second support block; 231. Positioning structure; 232. Clearance hole;

[0032] 3. Drive module; 31. Motor; 32. Lead screw mechanism; 321. Lead screw; 322. Nut; 33. Guide mechanism; 331. Guide rail; 332. Slider; 34. Base; 341. Receiving cavity; 342. First plate; 343. Second plate; 344. Third plate; 345. Fourth plate; 346. Fifth plate; 347. Second through hole; 35. Coupling; 36. Connecting block; 37. Bearing;

[0033] 4. Camera module; 41. Camera; 42. Lens; 421. First end; 422. Second end;

[0034] 5. Light source;

[0035] 6. Sensors;

[0036] 7. Sensor sheet;

[0037] 8. Limit block. Detailed Implementation

[0038] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0039] like Figures 1 to 3 As shown, in one embodiment, the visual recognition device 10 includes a first support module 1, a second support module 2, a drive module 3, and a camera module 4; the drive module 3 is disposed on the first support module 1; the camera module 4 is disposed on the second support module 2 and is used to photograph the PCB board; the drive module 3 is connected to the second support module 2 and is used to drive the second support module 2 to reciprocate along the optical axis of the camera module 4, so that the camera module 4 moves closer to or further away from the PCB board, thereby adjusting the distance between the camera module 4 and the PCB board.

[0040] When the driving module 3 drives the second support module 2 to move along the optical axis of the camera module 4, it can also drive the camera module 4 to move along its own optical axis, thus allowing adjustment of the focal length of the camera module 4. Furthermore, when the PCB board has varying thicknesses, the driving module 3 can drive the second support module 2 to adjust the position of the camera module 4 along its optical axis in real time, thereby adjusting the distance between the camera module 4 and the PCB board. This ensures a suitable distance between the camera module 4 and the PCB board, resulting in a clear image of the PCB board captured by the camera module 4 and improving the accuracy of subsequent PCB board recognition.

[0041] In the prior art, along the optical axis of the camera module 4, the camera module 4 and the worktable 20 for placing the PCB board (see reference) are positioned... Figure 4The spacing between the PCB boards is constant. At this time, the spacing between the PCB board and the camera module 4 is different for different thicknesses in the optical axis direction. At this time, there is a problem that the distance between the PCB board and the camera module 4 is not suitable for some thicknesses of PCB boards, which makes the image obtained by the camera module 4 after capturing the PCB board unclear, and the PCB board cannot be identified or the accuracy of identifying the PCB board is reduced. The visual recognition device 10 has poor adaptability to PCB boards of different thicknesses.

[0042] The configuration in this embodiment can effectively solve this problem, thereby improving the adaptability of the visual recognition device 10 to PCB boards of different thicknesses.

[0043] It should be understood that the optical axis direction of camera module 4 refers to the direction in which the optical axis extends. The optical axis of camera module 4 can be regarded as the axis of lens 42 of camera module 4.

[0044] like Figure 1 As shown, in one embodiment, the second support module 2 includes a first support block 21; the first support block 21 is provided with a blocking hole 211, which passes through the first support block 21 along the optical axis of the camera module 4; the image acquisition end of the camera module 4 is located inside the blocking hole 211.

[0045] The camera module 4 mainly includes a camera 41 and a lens 42, with one end of the camera 41 and the lens 42 connected together. Specifically, on the optical axis, the lens 42 has a first end 421 and a second end 422 arranged opposite to each other. The first end 421 of the lens 42 is connected to the camera 41, and the second end 422 of the lens 42 is the image acquisition end. The light reflected from the PCB board enters the lens 42 from the end face of the second end 422 of the lens 42, and then passes through the lens inside the lens 42 before being transmitted to the camera 41. The camera 41 can then form an image of the PCB board based on this light.

[0046] The image acquisition end is located inside the obstruction hole 211, which can mean that the end face of the second end 422 is located inside the obstruction hole 211.

[0047] In addition, the lens 42 includes a lens barrel and several lenses installed inside the lens barrel. The first end 421 and the second end 422 of the lens 42 are both ends of the lens barrel. The end face of the second end 422 of the lens 42 is the surface of the lens barrel that is away from the camera module 4.

[0048] During operation, in the optical axis direction, the end face of the second end 422 can be the surface of the lens 42 closest to the worktable 20 used to place the PCB board.

[0049] The design of this embodiment effectively prevents dust and other contaminants from entering the lens barrel from the end face of the image acquisition end, thereby ensuring the imaging effect of the camera module 4.

[0050] like Figure 1 and Figure 2 As shown, in one embodiment, the second support module 2 further includes a drive plate 22 and a second support block 23; the drive plate 22 is connected to the drive module 3; the first support block 21 and the second support block 23 are both disposed on the drive plate 22 and are spaced apart along the optical axis of the camera module 4; the first support block 21 is connected to the lens 42, and the second support block 23 is connected to the camera module 4. This improves the support effect on the camera module 4, making the camera module 4 more securely installed.

[0051] like Figure 1 As shown, in one embodiment, the second support block 23 is provided with a positioning structure 231, which is used to define the connection position of the camera 41 on the second support block 23. This makes it easier to install the camera 41 on the second support module 2, and at the same time, it also helps to improve the installation accuracy of the camera module 4.

[0052] The positioning structure 231 can be a positioning groove, in which the camera 41 is mounted. The positioning groove is located on the surface of the second support block 23 facing away from the drive plate 22, and extends along the optical axis of the camera module 4. Furthermore, the positioning groove extends along the optical axis of the camera module 4 to the surface of the second support block 23 near the first support block 21; and / or, the positioning groove extends along the optical axis of the camera module 4 to the surface of the second support block 23 facing away from the first support block 21.

[0053] The second support block 23 and the drive plate 22 are arranged along the first direction. The optical axis of the camera module 4 is parallel to the second direction, and the first direction is perpendicular to the second direction. The positioning grooves on the two side walls in the third direction are used to position the camera module 4.

[0054] In one application scenario, the first direction is the forward / backward direction, the second direction is the up / down direction, and the third direction is the left / right direction. Figure 1 and Figure 2 Of the directions shown, the first direction is parallel to the X-axis, the second direction is parallel to the Z-axis, and the third direction is parallel to the Y-axis. Furthermore, in this application scenario, the first support block 21 is located below the second support block 23. The end face of the second end 422 refers to the lower surface of the lens 422.

[0055] Of course, in other embodiments, the positioning structure 231 may also be a positioning block or the like, to define the mounting position of the camera 41.

[0056] In one embodiment, the drive module 31 is configured as an electrically adjustable module, meaning that the drive module 31 has electrical components and requires power to operate. The drive module 31 is adapted to be connected to a control device so that the control device can control the operation of the drive module 31, enabling the drive module 31 to drive the second support module 2 to reciprocate along the optical axis of the camera module 4. This allows for automatic focusing of the camera module 4, improving production efficiency.

[0057] like Figure 1 and Figure 2 As shown, in one embodiment, the drive module 3 includes a motor 31, a lead screw mechanism 32, and a guide mechanism 33; the motor 31 is connected to the first support module 1 and to the lead screw 321 of the lead screw mechanism 32; the nut 322 of the lead screw mechanism 32 is connected to the drive plate 22, and the nut 322, the first support block 21, and the second support block 23 of the lead screw mechanism 32 are disposed on the same side of the drive plate 22; the motor 31 drives the drive plate 22 to reciprocate along the optical axis of the camera module 4 through the lead screw mechanism 32; the guide mechanism 33 is disposed between the first support module 1 and the drive plate 22, and is connected to the first support module 1 and the drive plate 22 respectively, for guiding the movement of the drive plate 22 along the optical axis of the camera module 4.

[0058] By placing the nut 322, the first support block 21, and the second support block 23 of the lead screw mechanism 32 on the same side of the drive plate 22, the size of the visual recognition device 10 in the first direction can be reduced, which is beneficial to the miniaturization design of the visual recognition device 10.

[0059] In addition, by placing the guide mechanism 33 between the drive plate 22 and the first support module 1, the gap between the drive plate 22 and the first support module 1 can be effectively utilized, which is beneficial to the miniaturization design of the visual recognition device 10.

[0060] In one embodiment, the motor 31 may be a servo motor, a stepper motor, or the like.

[0061] like Figure 3 As shown, in one embodiment, the guiding mechanism 33 includes a guide rail 331 and a slider 332, which cooperate with each other. The guide rail 331 may be connected to the first support module 1 and extend along a second direction; the slider 332 is connected to the drive plate 22. Of course, in other embodiments, the guide rail 331 may be connected to the drive plate 22, and the slider 332 may be connected to the first support module 1.

[0062] like Figure 1 and Figure 2As shown, in one embodiment, the nut 322, the first support block 21, and the second support block 23 of the lead screw mechanism 32 are all disposed on the side of the drive plate 22 away from the first support module 1, which can reduce the distance between the drive plate 22 and the first support module 1 in the first direction.

[0063] Along the optical axis of the camera module 4, the nut 322 of the lead screw mechanism 32 is located on the side of the second support block 23 away from the first support block 21; in addition, a clearance hole 232 is provided on the surface of the second support block 23 near the nut 322 of the lead screw mechanism 32 (see reference). Figure 3 The lead screw 321 of the lead screw mechanism 32 can extend into the clearance hole 232. This arrangement allows the second support block 23 to be positioned closer to the nut 322, thereby reducing the size of the visual recognition device 10 in the second direction and facilitating the miniaturization design of the visual recognition device 10.

[0064] like Figure 1 and Figure 2 As shown, in one embodiment, the drive module 3 further includes a base 34 and a coupling 35; the base 34 is connected to the first support module 1; the base 34 has a receiving cavity 341, which extends through the base 34 along the optical axis of the camera module 4; the motor 31 is connected to the base 34 and is located outside the receiving cavity 341; the coupling 35 is located inside the receiving cavity 341; the lead screw 321 of the lead screw mechanism 32 is connected to the base 34; the motor 31 is connected to the lead screw 321 of the lead screw mechanism 32 through the coupling 35.

[0065] Specifically, the base 34 includes a first plate 342, a second plate 343, a third plate 344, a fourth plate 345, and a fifth plate 346. The first plate 342 and the second plate 343 are spaced apart along a second direction, and the third plate 344 and the fourth plate 345 are spaced apart along a third direction. The first plate 342 is connected to the third plate 344 and the fourth plate 345, and the second plate 343 is connected to the third plate 344 and the fourth plate 345. The first plate 342, the second plate 343, the third plate 344, and the fourth plate 345 form a cavity. The first plate 342, the second plate 343, the third plate 344, and the fourth plate 345 are all connected to the fifth plate 346. The fifth plate 346 closes one end of the cavity and is also connected to the first support module 1.

[0066] Additionally, the first plate 342 has a first through hole that extends through the first plate 342 along the second direction, and the second plate 343 has a second through hole 347 (see reference). Figure 3 The second perforation 347 penetrates the second plate 343 along the second direction, and the first perforation, the second perforation 347 and the cavity form the receiving cavity 341.

[0067] The first plate 342 is located on the side of the second plate 343 opposite to the nut 322; specifically, the first plate 342 is located above the second plate 343. The motor 31 is mounted on the side of the first plate 342 opposite to the second plate 343, and the main shaft of the motor 31 extends into the cavity through the first through hole; the coupling 35 is located in the cavity; and the lead screw 321 extends into the cavity through the second through hole 347.

[0068] In addition, such as Figure 3 As shown, the drive module 3 also includes a connecting block 36 and a bearing 37. The connecting block 36 has a shaft hole, and the bearing 37 is installed in the shaft hole. The bearing 37 is sleeved on the lead screw 321 and the second plate 343 connected to the connecting block 36, thereby realizing the connection between the lead screw 321 and the base 34. This arrangement facilitates the installation of the coupling 35.

[0069] like Figure 1 and Figure 2 As shown, in one embodiment, the visual recognition device 10 further includes a light source 5, which is used to project light onto the PCB board, thereby making the image of the PCB board captured by the camera module 4 clearer.

[0070] Furthermore, along the axial direction of the blocking hole 211, the light source 5 is positioned on the end face of the first support block 21. When the camera module 4 moves along the direction from the first support block 21 to the light source 5, it approaches the PCB board; when the camera module 4 moves along the direction from the light source 5 to the first support block 21, it moves away from the PCB board. That is, the light source 5 is positioned on the lower surface of the first support block 21. This avoids the camera module 4 or the second support module 2 from blocking the light from the light source 5, thus facilitating the projection of light onto the PCB board.

[0071] In one embodiment, the light source 5 is a ring light source that surrounds the blocking hole 211. This avoids overexposure of the central area captured by the camera module 4, thereby improving the imaging effect of the camera module 4.

[0072] like Figure 2 As shown, in one embodiment, the visual recognition device 10 further includes a sensor 6 and a sensing sheet 7; one of the sensor 6 and the sensing sheet 7 is connected to the first support module 1, and the other is connected to the second support module 2; when the drive module 3 drives the camera module 4 to approach the PCB board, the sensor 6 can detect the sensing sheet 7 to limit the maximum displacement of the camera module 4 when it approaches the PCB board. The sensor 6 can be a proximity switch, etc., and the sensing sheet 7 can be a metal sheet.

[0073] During operation, the visual recognition device 10 connects to a corresponding control device, which controls the operation of components such as the drive module 3 and the light source 5. The sensor 6 is also connected to the control device. When the sensor 6 detects the sensing element 7, it indicates that the camera module 4 has moved to its maximum position near the PCB board. At this time, the sensor 6 generates a corresponding electrical signal, which is transmitted to the control device. The control device can then control the drive module 3 to stop operating based on this signal, thus preventing the camera module 4 from approaching the PCB board. This improves the safety of the visual recognition device 10 and protects the camera module 4, effectively preventing it from colliding with the PCB board.

[0074] like Figure 2 As shown, in one embodiment, the visual recognition device 10 further includes a limiting block 8, which is disposed on the first support module 1; when the driving module 3 drives the camera module 4 to approach the PCB board, after the sensor 6 detects the sensing sheet 7, the limiting block 8 can abut against the second support module 2 and / or the driving module 3 to prevent the camera module 4 from approaching the PCB board.

[0075] In some scenarios, if the sensor 6 or sensor plate 7 is damaged, causing the camera module 4 to move closer to the PCB board after reaching its maximum permissible position, a limiting block 8 can be used to hard limit its movement, preventing the camera module 4 from continuing to approach the PCB board. This further improves the safety of the visual recognition device 10 and effectively avoids collisions between the camera module 4 and the PCB board.

[0076] In one embodiment, the limiting block 8 can be a slider 332 that abuts against the guide mechanism 33 in the drive module 3 to prevent the camera module 4 from continuing to approach the PCB board. Of course, in other embodiments, the limiting block 8 can also prevent the camera module 4 from continuing to approach the PCB board by abutting against the drive plate 22 or other means.

[0077] like Figure 1 and Figure 2 As shown, in one embodiment, the first support module 1 includes a support plate 11 and a mounting block 12. In a first direction, the support plate 11 has a first surface 111 and a second surface 112 disposed opposite to each other. The mounting block 12 is disposed on the first surface 111. The drive module 3 is disposed on the second surface 112. In a third direction, both opposite ends of the mounting block 12 protrude from the support plate 11, and the portion of the mounting block 12 protruding from the support plate 11 is used to connect to a supported object. This arrangement makes it easier to connect the mounting block 12 to the supported object from the front (i.e., the side where the second surface 112 is located), thereby realizing the installation of the entire visual recognition device 10 on the supported object.

[0078] Furthermore, in the second direction, neither end of the mounting block 12 protrudes from the support plate 11, thus reducing the size of the mounting block 12 in the second direction. The mounting block 12 effectively increases the distance between the support plate 11 and the supported object, which helps to avoid interference with the corresponding object on the support due to the excessive size of the mounting block 12 in the second direction.

[0079] like Figure 4 As shown, this utility model embodiment also provides a processing device 100, which includes a base 30, a worktable 20, a processing device 40, and a visual recognition device 10 described in any of the above embodiments; the worktable 20, the processing device 40, and the visual recognition device 10 are all connected to the base 30; the visual recognition device 10 is used to photograph the PCB board placed on the worktable 20; the processing device 40 is used to process the PCB board placed on the worktable 20.

[0080] In one embodiment, the processing device 40 is a drilling device used to drill holes in a PCB board placed on the worktable 20. In this case, the processing equipment 100 is a drilling device. Alternatively, the drilling device can be a mechanical drilling device that uses a drill bit or similar material to achieve drilling, or a laser drilling device that uses a laser to achieve drilling. Of course, in other embodiments, the processing device 40 can also be other processing devices, such as a laser cutting device.

[0081] like Figure 4 As shown, in one embodiment, the processing equipment 100 further includes a support frame 50, a first driving device 60, and a second driving device 70; the first driving device 60 is disposed on the base 30 and connected to the worktable 20, and is used to drive the worktable 20 to reciprocate along a first direction; the support frame 50 is disposed on the base 30, and the second driving device 70 is disposed on the support frame 50 and spaced apart from the base 30 in a second direction; the processing device 40 and the vision recognition device 10 are both connected to the second driving device 70, and the second driving device 70 is used to drive the processing device 40 and the vision recognition device 10 to reciprocate along a third direction.

[0082] During operation, the first drive device 60 and the second drive device 70 can adjust the position of the worktable 20 (and the PCB board on the worktable 20) in the XY plane, allowing the vision recognition device 10 to capture images of different areas of the PCB board. This also facilitates the processing device 40 in processing different areas of the PCB board.

[0083] The structures of the first driving device 60 and the second driving device 70 can both be the same as those of the driving module 3 described above.

[0084] In addition, the second drive device 70 can be regarded as the aforementioned support object.

[0085] In one embodiment, multiple visual recognition devices 10, worktables 20, processing devices 40, first driving devices 60, and second driving devices 70 are provided. Multiple visual recognition devices 10 are spaced apart along a second direction; multiple worktables 20 are spaced apart along a second direction; multiple processing devices 40 are spaced apart along a second direction; multiple first driving devices 60 are spaced apart along a second direction; multiple second driving devices 70 are spaced apart along a second direction; the visual recognition devices 10, worktables 20, processing devices 40, first driving devices 60, and second driving devices 70 correspond one-to-one; the first driving device 60 drives its corresponding worktable 20 to reciprocate along a first direction; the second driving device 70 drives its corresponding processing device 40 and visual recognition device 10 to reciprocate along a third direction; the visual recognition device 10 is used to capture images of PCB boards placed on its corresponding worktable 20; the processing device 40 is used to process the PCB boards placed on its corresponding worktable 20. In this way, the processing equipment 100 can process multiple PCB boards simultaneously, thereby improving processing efficiency.

[0086] 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.

[0087] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A visual recognition device, characterized in that, It includes a first support module, a second support module, a drive module, and a camera module; The drive module is mounted on the first support module; The camera module is mounted on the second support module and is used to photograph the PCB board; The driving module is connected to the second support module and is used to drive the second support module to reciprocate along the optical axis of the camera module, so that the camera module moves closer to or further away from the PCB board, thereby adjusting the distance between the camera module and the PCB board; The second support module includes a first support block; The first support block is provided with a blocking hole, which passes through the first support block along the optical axis of the camera module; The image acquisition end of the camera module is located inside the obstruction hole.

2. The visual recognition device according to claim 1, characterized in that, The second support module also includes a drive plate and a second support block; The drive board is connected to the drive module; Both the first support block and the second support block are disposed on the drive plate and are spaced apart along the optical axis of the camera module; The camera module includes a camera and a lens, with one end of the camera connected to the lens and the end of the lens facing away from the camera being the image acquisition end; The first support block is connected to the lens, and the second support block is connected to the camera module.

3. The visual recognition device according to claim 2, characterized in that, The second support block is provided with a positioning structure, which is used to define the connection position of the camera on the second support block; The positioning structure includes a positioning groove, and the camera is installed in the positioning groove; The positioning groove is disposed on the surface of the second support block opposite to the drive plate; The positioning groove extends along the optical axis of the camera module to the surface of the second support block near the first support block; And / or, the positioning groove extends along the optical axis of the camera module to the surface of the second support block opposite to the first support block.

4. The visual recognition device according to claim 2, characterized in that, The drive module includes a motor, a lead screw mechanism, and a guide mechanism; The motor is connected to the first support module and to the lead screw of the lead screw mechanism; The nut of the lead screw mechanism is connected to the drive plate, and the nut of the lead screw mechanism, the first support block and the second support block are arranged on the same side of the drive plate; The motor drives the drive plate to reciprocate along the optical axis of the camera module via the lead screw mechanism; The guiding mechanism is disposed between the first support module and the driving plate, and connects the first support module and the driving plate respectively, for guiding the movement of the driving plate along the optical axis of the camera module.

5. The visual recognition device according to claim 4, characterized in that, The nut, the first support block, and the second support block of the lead screw mechanism are all located on the side of the drive plate away from the first support module. Along the optical axis of the camera module, the nut of the lead screw mechanism is located on the side of the second support block opposite to the first support block; The second support block has a clearance hole on its surface near the nut of the lead screw mechanism, and the lead screw of the lead screw mechanism can extend into the clearance hole.

6. The visual recognition device according to claim 1, characterized in that, The visual recognition device also includes a light source, which is used to project light onto the PCB board; The light source is disposed on the end face of the first support block along the axial direction of the shielding hole; When the camera module moves along the direction from the first support block to the light source, it moves closer to the PCB board; when the camera module moves along the direction from the light source to the first support block, it moves away from the PCB board.

7. The visual recognition device according to claim 6, characterized in that, The light source is a ring light source and surrounds the blocking hole.

8. The visual recognition device according to claim 1, characterized in that, The visual recognition device also includes a sensor and a sensor sheet; One of the sensor and the sensing sheet is connected to the first support module, and the other is connected to the second support module; When the driving module drives the camera module to approach the PCB board, the sensor can detect the sensing sheet to limit the maximum displacement of the camera module when it approaches the PCB board.

9. The visual recognition device according to claim 8, characterized in that, The visual recognition device further includes a limiting block, which is disposed on the first support module; When the driving module drives the camera module to approach the PCB board, after the sensor detects the sensing sheet, the limiting block can abut against the second support module and / or the driving module to prevent the camera module from approaching the PCB board.

10. The visual recognition device according to claim 1, characterized in that, The drive module is configured as an electric adjustment module and is suitable for connection to a control device; The first support module includes a support plate and a mounting block; In a first direction, the support plate has a first surface and a second surface disposed opposite to each other; The mounting block is disposed on the first surface; The drive module is disposed on the second surface; In the second direction, neither of the opposite ends of the mounting block protrudes from the support plate; In the third direction, both opposite ends of the mounting block protrude from the support plate, and the portion of the mounting block protruding from the support plate is used to connect to the supporting object; The first direction, the second direction, and the third direction are perpendicular to each other, and the second direction is parallel to the optical axis of the camera module.

11. A processing device, characterized in that, It includes a base, a worktable, a processing device, and the visual recognition device as described in any one of claims 1-10; The workbench, the processing device, and the visual recognition device are all connected to the base. The visual recognition device is used to photograph the PCB board placed on the workbench; The processing device is used to process the PCB board placed on the workbench.

12. The processing equipment according to claim 11, characterized in that, The processing device is a drilling device, which is used to drill holes in the PCB board placed on the workbench.

13. The processing equipment according to claim 11, characterized in that, The processing equipment also includes a support frame, a first drive device, and a second drive device; The first driving device is mounted on the base and connected to the worktable, and is used to drive the worktable to reciprocate along a first direction; The support frame is mounted on the base, and the second driving device is mounted on the support frame and spaced apart from the base in the second direction; Both the processing device and the visual recognition device are connected to the second driving device, which is used to drive the processing device and the visual recognition device to reciprocate along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other, and the second direction is parallel to the optical axis of the camera module.

14. The processing equipment according to claim 13, characterized in that, The visual recognition device, the worktable, the processing device, the first driving device, and the second driving device are all provided in multiple ways; Multiple visual recognition devices are arranged at intervals along the second direction; The plurality of said worktables are spaced apart along the second direction; Multiple processing devices are arranged at intervals along the second direction; Multiple first driving devices are spaced apart along the second direction; Multiple second drive devices are spaced apart along the second direction; The visual recognition device, the workbench, the processing device, the first drive device, and the second drive device correspond one-to-one. The first driving device is used to drive the corresponding worktable to reciprocate along the first direction; The second driving device is used to drive the corresponding processing device and the visual recognition device to reciprocate along the third direction; The visual recognition device is used to photograph the PCB board placed on the corresponding workbench; The processing device is used to process the PCB board placed on the corresponding workbench.

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