An optical measuring instrument

Abstract

The utility model discloses an optical measuring appearance relates to optical measurement technical field, including the case body, the middle position of case body top is fixed with the detection platform, and the both sides of detection platform are equipped with the feeding conveyor and the discharge conveyor, the upper portion of case body rear side is fixed with the support frame, and the top cooperation of support frame is installed with linear drive module, the cooperation of linear drive module is installed with detection subassembly, the feeding assembly and the unloading assembly, and the detection subassembly is located between the feeding assembly and the unloading assembly, the utility model discloses, the feeding assembly places the newly sucked circuit board to the detection platform, and the unloading assembly moves the circuit board of good measurement to the discharge conveyor top and puts down, and the discharge conveyor exports the circuit board of good measurement, realizes automatic feeding, detection and unloading in the whole process, and does not need manual placement and measurement circuit board one by one, greatly improves work efficiency.

Description

Technical Field

[0001] This utility model specifically relates to the field of optical measurement technology, and more specifically to an optical measuring instrument. Background Technology

[0002] An optical measuring instrument is a type of image measuring instrument. It is a precision measuring instrument based on optical imaging and computer image processing technology. It acquires images of the object being measured using an industrial camera, and combines this with an optical magnification system and dedicated measurement software to achieve non-contact, precise measurement of the object's size, shape, and positional relationships. It is a core testing device in industrial quality inspection and precision manufacturing. Measurement objects include: PCB circuit board trace width / spacing, component pin dimensions, chip package dimensions, connector pin spacing, etc.

[0003] Chinese Patent Application No. 202321003449.4 discloses a high-precision measuring instrument. The high-precision measuring instrument includes a base, a measuring platform, a Z-axis distance adjustment device, a CCD imaging device, a laser detector, and a contact probe. A Y-axis distance adjustment device is mounted on the base, with a horizontal sliding plate mounted at its output end. An X-axis distance adjustment device is mounted on the horizontal sliding plate, and the measuring platform is mounted on the output end of the X-axis distance adjustment device. A mounting column is provided on the outer side of the measuring platform, and the mounting column is mounted on the base, with the Z-axis distance adjustment device mounted on the mounting column.

[0004] Taking circuit board production as an example, when the measuring instrument in the aforementioned patent measures the circuit boards, it is necessary to manually place and measure each circuit board one by one, which results in low work efficiency and makes it impossible to automate the operation of the equipment. Utility Model Content

[0005] The purpose of this utility model is to provide an optical measuring instrument that, when used with automatic feeding and unloading, eliminates the tedious manual material handling and can be used in conjunction with other production equipment, thereby improving the measurement efficiency of circuit boards; thus solving the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An optical measuring instrument includes a housing, a detection platform fixed at the middle of the top of the housing, and a feeding conveyor and a discharging conveyor on both sides of the detection platform. A support frame is fixed on the upper rear side of the chassis, and a linear drive module is installed on the top of the support frame; a detection component, a feeding component, and a discharging component are installed on the linear drive module, wherein the detection component is located between the feeding component and the discharging component. The feeding component is positioned above the feeding conveyor; the unloading component is positioned on the discharging conveyor.

[0007] As a further technical solution of this utility model, the detection component includes a transfer seat that is fitted onto a linear drive module, and a transfer frame is fixedly installed on one side of the transfer seat; a drive motor is fixedly installed on the top of the transfer frame; a lead screw is fitted onto the output shaft of the drive motor through a coupling, and the lead screw is threadedly connected to a nut seat located on the rear side of the sliding frame; an optical measurement component is fixed on the side of the sliding frame away from the lead screw.

[0008] As a further technical solution of this utility model, the feeding component and the unloading component adopt the same structure; the feeding component and the unloading component are electrically connected to the synchronous controller through wires.

[0009] As a further technical solution of this utility model, the feeding assembly includes a mounting bracket that is fitted onto the linear drive module. A lead screw motor is fixed on the top of the mounting bracket, and a drive lead screw is fitted onto the output shaft of the lead screw motor via a coupling. Both ends of the drive lead screw are fitted onto the mounting bracket via bearings with seats. A sliding bracket is also threaded onto the drive lead screw. The sliding frame has sliding blocks fixed at both ends; the sliding blocks are slidably connected to the rails fixed on the mounting frame; a hanger is fixed on one side of the sliding frame; and a suction cup is provided at the bottom of the hanger.

[0010] As a further technical solution of this utility model, the suction cups are provided in multiple forms, arranged in a ring array or a rectangular array at the lower end of the hanger.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the feeding component places the newly picked-up circuit board onto the testing table, the unloading component moves the measured circuit board to the top of the discharge conveyor and puts it down, and the discharge conveyor outputs the measured circuit board; the whole process realizes automatic feeding, testing and unloading, eliminating the need for manual placement and measurement of circuit boards one by one, which greatly improves work efficiency; 2. This utility model can be used in conjunction with other production equipment to further improve the automation level and production efficiency of circuit board measurement. At the same time, the device has a compact structure, a reasonable layout of components, and stable and reliable operation, meeting the high precision and high efficiency requirements of optical measuring instruments in industrial quality inspection and precision manufacturing fields. 3. In this utility model, when measuring a circuit board, the drive motor starts and drives the lead screw to rotate. Since the lead screw is threadedly connected to the nut seat on the rear side of the sliding frame, the rotation of the lead screw is converted into the linear motion of the sliding frame. The sliding frame then drives the optical measurement component fixed on it to move, so that the circuit board on the test table is completely placed within the lens, ensuring the comprehensiveness and accuracy of the measurement. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This utility model Figure 1 The diagram on the right side shows the structure.

[0014] Figure 3 This utility model Figure 2 The main view.

[0015] Figure 4 This utility model Figure 2 The left view.

[0016] Figure 5 This utility model Figure 2 A magnified view of a portion of the image.

[0017] Figure 6 This utility model Figure 3 A magnified view of a portion of the image.

[0018] Figure 7 This utility model Figure 4 A magnified view of a portion of the image.

[0019] In the diagram: 1-Chassis, 2-Feeding conveyor, 3-Discharging conveyor, 4-Inspection table, 5-Inspection component, 6-Loading component, 7-Unloading component, 8-Linear drive module, 9-Support frame; 51-Transfer base, 52-Transfer frame, 53-Drive motor, 54-Sliding frame, 55-Slide rail, 56-Optical measurement assembly; 61-Mounting bracket, 62-Screw motor, 63-Drive screw, 64-Sliding bracket, 65-Hanger, 66-Suction cup, 67-Railway, 68-Slide base. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-7 In this embodiment of the utility model, an optical measuring instrument includes a housing 1, a detection platform 4 is fixed at the middle position of the top of the housing 1, and a feeding conveyor 2 and a discharging conveyor 3 are provided on both sides of the detection platform 4. A support frame 9 is fixed on the upper rear side of the chassis 1, and a linear drive module 8 is installed on the top of the support frame 9; a detection component 5, a feeding component 6 and a discharging component 7 are installed on the linear drive module 8, wherein the detection component 5 is located between the feeding component 6 and the discharging component 7. The feeding component 6 is positioned above the feeding conveyor 2; the unloading component 7 is positioned on the discharging conveyor 3.

[0022] To be more specific, the circuit board manufacturing process involves the following steps: 1. Material cutting: Select copper-clad laminates and cut them into boards that meet production specifications; 2. Pretreatment: Remove oxides and impurities from the copper surface of the copper-clad laminate and roughen the copper surface to enhance the adhesion of the dry film; then apply the dry film using a laminator. 3. Pattern transfer: The designed circuit pattern is transferred onto the dry film using an exposure machine, and then the unexposed dry film is removed by development, forming a "resist pattern" on the surface of the copper clad laminate; 4. Etching: The copper-clad laminate is etched by spraying to remove the copper areas not protected by the resist layer, leaving copper lines that meet the design requirements; 5. Film Removal: Use NaOH solution to remove the dry film from the surface of the circuit, revealing a clean copper circuit pattern; 6. Optical Measurement: At this point, the circuit is complete, and line width / spacing can be detected using a 3D measuring instrument, and circuit defects can be detected using AOI.

[0023] Optical measurements are primarily used to verify the "processing quality of circuit patterns".

[0024] By adopting the above technical solution, during use, after the circuit board has undergone film removal and air drying, before it is conveyed to the equipment of this utility model via a conveyor, a robotic arm places the circuit board onto the feeding conveyor 2. A linear drive module 8 drives the loading component 6 to move above the feeding conveyor 2, then picks up the circuit board. The loading component 6 then moves to the inspection table 4, where the inspection component 5 inspects the circuit board. After inspection, the linear drive module 8 synchronously drives the inspection component 5, the loading component 6, and the unloading component 7 to move. The loading component 6 continues to pick up circuit boards from the feeding conveyor 2, while the unloading component 7 picks up the measured circuit boards from the inspection table 4. Then, the feeding component 6 places the newly picked-up circuit board onto the testing table 4, the unloading component 7 moves the measured circuit board above the discharge conveyor 3 and puts it down, and the discharge conveyor 3 outputs the measured circuit board.

[0025] The entire process achieves automated feeding, inspection, and unloading, eliminating the need for manual placement and measurement of circuit boards, greatly improving work efficiency. It can also be integrated with other production equipment, further enhancing the automation level and production efficiency of circuit board measurement. Furthermore, the device has a compact structure, a rational layout of components, and stable and reliable operation, meeting the high precision and efficiency requirements of optical measuring instruments in industrial quality inspection and precision manufacturing fields.

[0026] In this embodiment, the detection component 5 includes a transfer seat 51 that is fitted onto the linear drive module 8, and a transfer frame 52 is fixedly mounted on one side of the transfer seat 51; a drive motor 53 is fixedly mounted on the top of the transfer frame 52; a lead screw is fitted onto the output shaft of the drive motor 53 via a coupling, and the lead screw is threadedly connected to a nut seat located on the rear side of the sliding frame 54; an optical measurement component 56 is fixed on the side of the sliding frame 54 away from the lead screw.

[0027] By adopting the above technical solution, when measuring the circuit board, the drive motor 53 starts and drives the lead screw to rotate. Since the lead screw is threadedly connected to the nut seat on the rear side of the sliding frame 54, the rotation of the lead screw is converted into the linear motion of the sliding frame 54. The sliding frame 54 then drives the optical measurement component 56 fixed on it to move, so that the circuit board on the detection stage 4 is completely placed within the lens, ensuring the comprehensiveness and accuracy of the measurement.

[0028] It should be noted that this utility model is an improvement on the existing technology of a high-precision measuring instrument to realize automatic loading and unloading of equipment; the optical measuring component 56 is the same as the content described in Chinese Patent Announcement No. CN219798242U, and the CCD camera is connected to the collector for image analysis and transmission to the display screen for display, thereby determining whether the circuit board is qualified.

[0029] The above principles are all existing technologies, and their specific working principles will not be elaborated here.

[0030] In this embodiment, the loading component 6 and the unloading component 7 are composed of the same structure; the loading component 6 and the unloading component 7 are electrically connected to the synchronization controller via wires. The synchronization controller can control the synchronous movement of the loading component 6 and the unloading component 7, thereby ensuring the synchronization effect of the circuit board during loading and unloading.

[0031] In this embodiment, the feeding component 6 includes a mounting bracket 61 that is fitted onto the linear drive module 8. A lead screw motor 62 is fixed on the top of the mounting bracket 61. A drive lead screw 63 is fitted onto the output shaft of the lead screw motor 62 via a coupling. Both ends of the drive lead screw 63 are fitted onto the mounting bracket 61 via bearing seats. A sliding bracket 64 is also threaded onto the drive lead screw 63. The sliding frame 64 has slide seats 68 fixed at both ends; the slide seats 68 are slidably connected to the rails 67 fixed on the mounting frame 61; a hanger 65 is fixed on one side of the sliding frame 64; and a suction cup 66 is provided at the bottom of the hanger 65.

[0032] More specifically, there are multiple suction cups 66 arranged in a ring array or a rectangular array at the lower end of the hanger 65.

[0033] By adopting the above technical solution, when the circuit board is picked up, the lead screw motor 62 starts and drives the drive lead screw 63 to rotate. Since the drive lead screw 63 is threadedly connected to the sliding frame 64, and the sliding frame 64 is slidably connected to the track 67 through the slide block 68, the rotation of the drive lead screw 63 is converted into the linear motion of the sliding frame 64. The sliding frame 64 then drives the fixed hanger 65 and suction cup 66 to move. When the suction cup 66 moves above the circuit board, the suction cup 66 works to generate suction force and picks up the circuit board. Then, the loading component 6 moves to the top of the inspection table 4 under the drive of the linear drive module 8, the suction cup 66 stops working, and the circuit board is placed on the inspection table 4 for subsequent inspection operations.

[0034] The suction cup 66 can be connected to a negative pressure generator or a negative pressure pump through an air pipe to achieve negative pressure drive. The specific principle will not be elaborated here.

[0035] The working principle of this invention is as follows: During use, after the circuit board has undergone film removal and air drying, before being conveyed to the equipment of this invention via a conveyor, a robotic arm places the circuit board onto the feeding conveyor 2. A linear drive module 8 drives the loading assembly 6 to move above the feeding conveyor 2, where it is then picked up. The loading assembly 6 then moves to the inspection table 4, where the inspection assembly 5 inspects the circuit board. After inspection, the linear drive module 8 synchronously drives the inspection assembly 5, the loading assembly 6, and the unloading assembly 7 to move. The loading assembly 6 continues to pick up circuit boards from the feeding conveyor 2, while the unloading assembly 7 picks up the measured circuit boards from the inspection table 4. Then, the feeding component 6 places the newly picked-up circuit board onto the testing table 4, the unloading component 7 moves the measured circuit board above the discharge conveyor 3 and puts it down, and the discharge conveyor 3 outputs the measured circuit board.

[0036] The entire process achieves automated feeding, inspection, and unloading, eliminating the need for manual placement and measurement of circuit boards, greatly improving work efficiency. It can also be integrated with other production equipment, further enhancing the automation level and production efficiency of circuit board measurement. Furthermore, the device has a compact structure, a rational layout of components, and stable and reliable operation, meeting the high precision and efficiency requirements of optical measuring instruments in industrial quality inspection and precision manufacturing fields.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An optical measuring instrument, characterized in that: Includes a chassis (1), with a testing platform (4) fixed at the middle of the top of the chassis (1), and a feeding conveyor (2) and a discharging conveyor (3) on both sides of the testing platform (4). A support frame (9) is fixed on the upper rear side of the chassis (1), and a linear drive module (8) is installed on the top of the support frame (9); a detection component (5), a feeding component (6) and a discharging component (7) are installed on the linear drive module (8), wherein the detection component (5) is located between the feeding component (6) and the discharging component (7); The feeding component (6) is positioned above the feeding conveyor (2); the unloading component (7) is positioned on the unloading conveyor (3).

2. The optical measuring instrument according to claim 1, characterized in that: The detection component (5) includes a transfer seat (51) that is fitted onto the linear drive module (8), and a transfer frame (52) is fixedly mounted on one side of the transfer seat (51); a drive motor (53) is fixedly mounted on the top of the transfer frame (52); a lead screw is fitted onto the output shaft of the drive motor (53) via a coupling, and the lead screw is threadedly connected to a nut seat located on the rear side of the sliding frame (54); an optical measurement component (56) is fixed on the side of the sliding frame (54) away from the lead screw.

3. The optical measuring instrument according to claim 1, characterized in that: The feeding component (6) and the unloading component (7) are composed of the same structure; the feeding component (6) and the unloading component (7) are electrically connected to the synchronous controller through wires.

4. The optical measuring instrument according to claim 3, characterized in that: The feeding assembly (6) includes a mounting bracket (61) that is fitted onto the linear drive module (8). A lead screw motor (62) is fixed on the top of the mounting bracket (61). A drive lead screw (63) is fitted onto the output shaft of the lead screw motor (62) via a coupling. Both ends of the drive lead screw (63) are fitted onto the mounting bracket (61) via bearing seats. A sliding bracket (64) is also threaded onto the drive lead screw (63). The sliding frame (64) has slide seats (68) fixed at both ends; the slide seats (68) are slidably connected to the rail (67) fixed on the mounting frame (61); a hanger (65) is fixed on one side of the sliding frame (64); and a suction cup (66) is provided at the bottom of the hanger (65).

5. The optical measuring instrument according to claim 4, characterized in that: The suction cups (66) are provided in multiple ways, arranged in a ring array or a rectangular array at the lower end of the hanger (65).

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