Test tool for PCB appearance detection

Abstract

The utility model discloses a test tool for PCB appearance detection, which comprises a base, a back frame, a movable seat structure, an appearance detection structure, a built-in plate, a clamping structure, a flatness detection structure and a display, the back frame is mounted on one side of the surface of the base, the movable seat structure is mounted above the inner side of the back frame, and the built-in plate is mounted on the movable seat structure. An appearance detection structure is arranged in the middle of the rear side of the movable seat structure and located in the middle of the inner side wall of the back frame, a built-in plate is installed on the inner surface of the base, clamping structures are installed on the two sides of the outer wall of the back frame in a penetrating mode, and a flatness detection structure is arranged at the bottom of the movable seat structure. A displayer is installed on the edge of one side of the surface of the base. According to the test tool for PCB appearance detection, the flatness detection structure can be moved and adjusted through the moving seat structure according to the height and width of a PCB material or the fixed position after the PCB material is clamped by the clamping structure in the use process, and flatness detection operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB appearance detection equipment, in particular to a test tool for PCB appearance detection. Background Art

[0002] PCB is a key interconnection part of electronic products, and its quality is directly related to the reliability of electronic equipment. Therefore, PCB appearance inspection is an indispensable part of the production process. PCB appearance inspection mainly includes the identification and judgment of defects such as stains, scratches, bubbles, bruises, exposed copper, defects, foreign matter, character errors, etc. on the board surface.

[0003] Existing PCB appearance inspection devices do not have the functions of object clamping and surface flatness inspection during use, such as a PCB appearance inspection station disclosed in application number CN202223374658.8. Existing PCB appearance inspection test devices of this type cannot clamp the object itself during use, and cannot ensure the stability of the object to be tested after placement, which will also reduce the progress of the inspection. At the same time, the flatness detection function cannot detect flatness problems, which increases the risk of subsequent use, thereby affecting the quality of the product and reducing the efficiency of the device inspection.

[0004] Therefore, it is necessary to invent a test fixture for PCB appearance inspection to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a test fixture for PCB appearance detection, so as to solve the problem that the test fixture has no object clamping and surface flatness detection functions during use.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a test tool for PCB appearance inspection, comprising a base, a back frame, a movable seat structure and an appearance inspection structure, wherein a back frame is installed on one side of the surface of the base, a movable seat structure is installed on the upper inner side of the back frame, an appearance inspection structure is arranged in the middle of the rear side of the movable seat structure, the appearance inspection structure is located in the middle of the inner side wall of the back frame, a built-in plate is installed on the inner surface of the base, clamping structures are installed on both sides of the outer wall of the back frame, a flatness inspection structure is arranged at the bottom of the movable seat structure, and a display is installed on the edge of one side of the surface of the base.

[0007] Preferably, the movable seat structure includes a base, a fixed seat, a transverse movable seat and a longitudinal movable seat, the base is fixedly mounted on one side of the inner wall of the back frame, a fixed seat is installed between one side of the base and the other side of the inner wall of the back frame, a transverse movable seat is installed on the surface of the fixed seat, and a longitudinal movable seat is arranged below the transverse movable seat.

[0008] Preferably, the appearance detection structure includes a welding plate, a motor, a telescopic rod and a mounting frame, the welding plate is fixedly welded to the upper inner wall of the back frame, a motor is arranged above the middle part of the welding plate, a telescopic rod is installed at the output end of the motor, and a mounting frame is installed at the output end of the telescopic rod.

[0009] Preferably, a CCD camera is installed in the installation frame, a sliding block is installed on the rear side of the installation frame, and a sliding groove that slidably matches the sliding block is opened in the middle of the inner side of the back frame.

[0010] Preferably, the thickness of the lower edge of the installation frame is the same as the thickness of the built-in plate, and after the installation frame is lowered, the front lens of the CCD camera is parallel to the surface angle of the built-in plate.

[0011] Preferably, the clamping structure includes a cylinder, a push rod and a clamping plate, the cylinder is respectively installed at the lower sides of the outer wall of the back frame, the output end of the cylinder is installed with a push rod, the push rod passes through the back frame and is located on the inner side of the back frame, and the output end of the push rod is installed with a clamping plate.

[0012] Preferably, the flatness detection structure includes an instrument screen, a mounting part and a detachable part. The instrument screen is located at the bottom of the movable seat structure. The top surface of the instrument screen is fixed to the movable seat structure through the mounting part. The detachable part is installed at the bottom of the instrument screen.

[0013] Preferably, a pressing plate is installed below the detachable part, a front end of the pressing plate is connected to a spirit level, and the bottom surface of the pressing plate and the bottom surface of the spirit level are on the same horizontal line.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] The test fixture for PCB appearance inspection, when the moving seat structure moves, the flatness detection structure installed at the bottom of the longitudinal moving seat below it will be attached to the surface of the PCB material. A level meter is installed in the flatness detection structure, so when the level meter is attached to the surface of the PCB material, the surface flatness detection effect can be achieved, and the data generated by the level meter will be displayed on the instrument screen;

[0016] During use, the flatness detection structure can be moved and adjusted through the movable seat structure according to the height and width of the PCB material or the fixed position after being clamped by the clamping structure, so as to facilitate the flatness detection operation;

[0017] After the surface flatness inspection of the PCB material is completed, a liftable CCD camera is installed in the middle of the inner side of the back frame, which can be moved up and down according to the position or thickness of the material. In this way, the lens of the CCD camera can collect image information of the PCB material placed on the built-in board, and can collect the color, shape and appearance characteristics of the object being tested, and then display them in real time through the display installed on the front side of the base. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the appearance detection structure of the utility model;

[0020] Figure 3 It is a rear view structural schematic diagram of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the mobile seat of the utility model;

[0022] Figure 5 It is a schematic diagram of the flatness detection structure of the utility model.

[0023] Description of reference numerals:

[0024] 1. Base; 2. Back frame; 3. Moving seat structure; 301. Base; 302. Fixed seat; 303. Horizontal moving seat; 304. Vertical moving seat; 4. Appearance detection structure; 401. Welding plate; 402. Motor; 403. Telescopic rod; 404. Mounting frame; 405. CCD camera; 406. Slider; 407. Slide; 5. Built-in plate; 6. Clamping structure; 601. Cylinder; 602. Push rod; 603. Clamping plate; 7. Flatness detection structure; 701. Instrument screen; 702. Mounting part; 703. Removable part; 704. Press plate; 705. Level; 8. Display. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figure 1-5A test fixture for PCB appearance inspection shown in the figure comprises a base 1, a back frame 2, a movable seat structure 3 and an appearance inspection structure 4, the back frame 2 is installed on one side of the surface of the base 1, the movable seat structure 3 is installed on the upper inner side of the back frame 2, the movable seat structure 3 comprises a base 301, a fixed seat 302, a transverse movable seat 303 and a longitudinal movable seat 304, the base 301 is fixedly installed on one side of the inner wall of the back frame 2, the fixed seat 302 is installed between one side of the base 301 and the other side of the inner wall of the back frame 2, the transverse movable seat 303 is installed on the surface of the fixed seat 302, the longitudinal movable seat 304 is arranged below the transverse movable seat 303, the appearance inspection structure 4 is arranged in the middle of the rear side of the movable seat structure 3, and the appearance inspection structure 4 is located at the back frame 2 In the middle of the inner wall of the back frame 2, the appearance detection structure 4 includes a welding plate 401, a motor 402, a telescopic rod 403 and a mounting frame 404. The welding plate 401 is fixedly welded to the upper inner wall of the back frame 2. A motor 402 is arranged on the upper middle part of the welding plate 401. The output end of the motor 402 is installed with a telescopic rod 403. The output end of the telescopic rod 403 is installed with a mounting frame 404. A CCD camera 405 is installed in the mounting frame 404. A slider 406 is installed on the rear side of the mounting frame 404. A slide groove 407 that slides and matches with the slider 406 is opened in the middle of the inner side of the back frame 2. The thickness of the lower edge of the mounting frame 404 is the same as the thickness of the built-in plate 5. After the mounting frame 404 is lowered, the front lens of the CCD camera 405 is parallel to the surface angle of the built-in plate 5.

[0027] The inner surface of the base 1 is installed with a built-in plate 5, and the outer walls of the back frame 2 are penetrated by a clamping structure 6 on both sides. The clamping structure 6 includes a cylinder 601, a push rod 602 and a clamping plate 603. The cylinder 601 is respectively installed at the lower sides of the outer wall of the back frame 2, and the output end of the cylinder 601 is installed with a push rod 602. The push rod 602 penetrates the back frame 2 and is located on the inner side of the back frame 2. The output end of the push rod 602 is installed with a clamping plate 603. The bottom of the movable seat structure 3 is provided with a flatness detection structure 7, and the flatness detection structure 7 includes An instrument screen 701, a mounting member 702 and a detachable member 703, wherein the instrument screen 701 is located at the bottom of the movable seat structure 3, and the top surface of the instrument screen 701 is fixed to the movable seat structure 3 via the mounting member 702. A detachable member 703 is mounted at the bottom of the instrument screen 701, and a pressure plate 704 is mounted below the detachable member 703. A spirit level 705 is connected to the front end of the pressure plate 704, and the bottom surface of the pressure plate 704 and the bottom surface of the spirit level 705 are on the same horizontal line. A display 8 is mounted on one edge of the surface of the base 1.

[0028] How this utility works:

[0029] Refer to the instruction manual Figure 1-5For this type of test fixture for PCB appearance inspection, when in use, first place the PCB material to be inspected on the built-in plate 5 on the surface of the base 1, and then it can be clamped and fixed by the clamping structures 6 installed at the bottom of both sides of the back frame 2. At this time, the bottom of the PCB material is placed on the built-in plate 5, and at the same time, the upper movable seat structure 3 is moved. Before the movable seat structure 3 moves, the surface of the CPB material below is facing upward. During the movement of the movable seat structure 3, the flatness detection structure 7 installed at the bottom of the longitudinal movable seat 304 below it will be in contact with the surface of the PCB material. A level meter 705 is installed in the flatness detection structure 7, so when the level meter 705 is in contact with the surface of the PCB material, The effect of surface flatness detection can be achieved, and the data generated by the spirit level 705 will be displayed on the instrument screen. The flatness detection structure 7 can be moved and adjusted through the movable seat structure 3 according to the height and width of the PCB material or the fixed position after clamping during use. When the surface flatness detection of the PCB material is completed, a liftable CCD camera 405 is installed in the middle of the inner side of the back frame 2, which can be moved up and down according to the position or thickness of the material, so that the lens of the CCD camera 405 can collect image information of the PCB material placed on the built-in board 5, and can collect the color, shape and appearance characteristics of the object to be measured, so as to display it in real time through the display 8 installed on the front side of the base 1.

Claims

1. A test fixture for PCB appearance inspection, comprising a base (1), a back frame (2), a movable seat structure (3), an appearance inspection structure (4), a built-in plate (5), a clamping structure (6), a flatness inspection structure (7) and a display (8), characterized in that: A back frame (2) is installed on one side of the surface of the base (1), a movable seat structure (3) is installed on the inner upper side of the back frame (2), an appearance detection structure (4) is arranged in the middle of the rear side of the movable seat structure (3), and the appearance detection structure (4) is located in the middle of the inner wall of the back frame (2), a built-in plate (5) is installed on the inner surface of the base (1), clamping structures (6) are installed through both sides of the outer wall of the back frame (2), a flatness detection structure (7) is arranged at the bottom of the movable seat structure (3), and a display (8) is installed on the edge of one side of the surface of the base (1).

2. The test fixture for PCB appearance inspection according to claim 1, characterized in that: The movable seat structure (3) comprises a base (301), a fixed seat (302), a transverse movable seat (303) and a longitudinal movable seat (304); the base (301) is fixedly mounted on one side of the inner wall of the back frame (2); a fixed seat (302) is mounted between one side of the base (301) and the other side of the inner wall of the back frame (2); a transverse movable seat (303) is mounted on the surface of the fixed seat (302); and a longitudinal movable seat (304) is arranged below the transverse movable seat (303).

3. The test tool for PCB appearance inspection according to claim 1, characterized in that: The appearance detection structure (4) comprises a welding plate (401), a motor (402), a telescopic rod (403) and a mounting frame (404); the welding plate (401) is fixedly welded to the upper inner wall of the back frame (2); a motor (402) is arranged above the middle of the welding plate (401); a telescopic rod (403) is installed at the output end of the motor (402); and a mounting frame (404) is installed at the output end of the telescopic rod (403).

4. The test fixture for PCB appearance inspection according to claim 3, characterized in that: A CCD camera (405) is installed in the installation frame (404), a slider (406) is installed on the rear side of the installation frame (404), and a slide groove (407) that slidably matches the slider (406) is opened in the middle of the inner side of the back frame (2).

5. The test fixture for PCB appearance inspection according to claim 3, characterized in that: The thickness of the lower edge of the installation frame (404) is the same as the thickness of the built-in plate (5), and after the installation frame (404) is lowered, the front lens of the CCD camera (405) is parallel to the surface angle of the built-in plate (5).

6. The test tool for PCB appearance inspection according to claim 1, characterized in that: The clamping structure (6) comprises a cylinder (601), a push rod (602) and a clamping plate (603); the cylinder (601) is respectively installed at the lower sides of the outer wall of the back frame (2); the output end of the cylinder (601) is installed with a push rod (602); the push rod (602) passes through the back frame (2) and is located on the inner side of the back frame (2); the output end of the push rod (602) is installed with a clamping plate (603).

7. The test tool for PCB appearance inspection according to claim 1, characterized in that: The flatness detection structure (7) comprises an instrument screen (701), a mounting member (702) and a detachable member (703); the instrument screen (701) is located at the bottom of the movable seat structure (3); the top surface of the instrument screen (701) is fixed to the movable seat structure (3) via the mounting member (702); and the detachable member (703) is installed at the bottom of the instrument screen (701).

8. The test fixture for PCB appearance inspection according to claim 7, characterized in that: A pressing plate (704) is installed below the detachable part (703), a front end of the pressing plate (704) is connected to a level meter (705), and the bottom surface of the pressing plate (704) and the bottom surface of the level meter (705) are on the same horizontal line.

Images