Automatic correcting and positioning mechanism for substrate detection

Abstract

The utility model discloses an automatic correcting and positioning mechanism for substrate detection, comprising a bearing platform used for placing a substrate; the X-axis direction limiting assembly comprises two X-axis direction limiting plates capable of being opened and closed and is used for limiting the substrate in the X-axis direction; the Y-axis direction limiting assembly comprises two Y-axis direction limiting plates capable of being opened and closed and is used for limiting the substrate in the Y-axis direction; the bearing platform is provided with long slotted holes for a plurality of connecting rods to penetrate through, and the connecting rods are connected with the X-axis direction limiting plate and the Y-axis direction limiting plate respectively. The limiting blocks in the X-axis direction and the Y-axis direction are arranged on the bearing platform, the limiting blocks in the X-axis direction and the Y-axis direction can be independently driven by the motor to move, the positions are automatically switched according to the specification of the circuit substrate, and the circuit substrate is accurately positioned; and during equipment model switching, manual participation is not needed in the midway, so that the labor cost is saved, and the working efficiency and the detection quality of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of substrate inspection technology, and in particular to an automatic correction and positioning mechanism for substrate inspection. Background Technology

[0002] Before leaving the factory, the circuit board needs to be electrically tested for short circuits, open circuits, etc. During the test, the board is fixed on the positioning mechanism, the test fixture on the test device moves to above the board, and the probes on the test fixture contact the terminals on the board to perform electrical testing.

[0003] Currently, substrates come in various specifications and sizes, but the positioning mechanisms are relatively simple and cannot meet the requirements of freely switching between multiple models. During testing, the mechanism needs to be adjusted manually, which is not only time-consuming and labor-intensive, but may also lead to deviations during adjustment, resulting in omissions in the testing and affecting the substrate testing results. Utility Model Content

[0004] To address the aforementioned issues, this invention provides an automatic calibration and positioning mechanism for substrate inspection, which allows for free switching between different machine types, enabling automatic feeding and alignment adjustments, thereby improving production efficiency.

[0005] Therefore, the technical solution of this utility model is: an automatic calibration and positioning mechanism for substrate inspection, comprising:

[0006] A support platform for placing the substrate;

[0007] The X-axis direction limiting assembly includes two openable X-axis direction limiting plates for limiting the substrate in the X-axis direction.

[0008] The Y-axis direction limiting assembly includes two openable Y-axis direction limiting plates for limiting the substrate in the Y-axis direction;

[0009] The X-axis positioning sensor group is used to detect the positioning status of the X-axis direction limiting plate.

[0010] The Y-axis positioning sensor group is used to detect the positioning status of the Y-axis direction limiting plate.

[0011] The bearing platform is provided with long slots for multiple connecting rods to pass through, and the connecting rods are respectively connected to the X-axis direction limiting plate and the Y-axis direction limiting plate.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: a substrate positioning detection sensor is provided at the center of the bearing platform.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: the X-axis direction limiting component further includes a first driving component that drives the X-axis direction limiting plate to open and close, and the first driving component is located below the bearing platform.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme: the first drive assembly includes a first drive motor and a first pulley group connected by a first belt, the X-axis direction limiting plate is fixed on the first movable base by a first connecting rod, and the first movable base is fixed on the first belt.

[0015] Based on the above scheme and as a preferred embodiment of the above scheme: the X-axis positioning detection sensor group includes a first sensing plate and several first sensors. The first sensing plate is fixed to the side of one of the first movable bases, and the first sensors are fixed to the lower surface of the bearing platform. The two work together.

[0016] Based on the above scheme and as a preferred embodiment of the above scheme: the lower surface of the bearing platform is provided with a first slide rail arranged in the X-axis direction, and the first movable base is provided with a first slider that slides and engages with the first slide rail.

[0017] Based on the above scheme and as a preferred embodiment of the above scheme: the Y-axis direction limiting component further includes a second driving component that drives the Y-axis direction limiting plate to open and close. The second driving component is installed on the base, and the base is located below the bearing platform.

[0018] Based on the above scheme and as a preferred embodiment of the above scheme: the second drive assembly includes a second drive motor and a second pulley group connected by a second belt, the Y-axis direction limiting plate is fixed on the second movable base by the second connecting rod, and the second movable base is fixed on the second belt.

[0019] Based on the above scheme and as a preferred embodiment of the above scheme: the Y-axis positioning detection sensor group includes a second sensing plate and several second sensors. The second sensing plate is fixed on the second movable base, and the second sensors are fixed on the base. The two work together.

[0020] Based on the above scheme and as a preferred embodiment of the above scheme: the upper surface of the base is provided with a second slide rail arranged in the Y-axis direction, and the second movable base is provided with a second slider that slides and engages with the second slide rail.

[0021] Compared with the prior art, the beneficial effects of this utility model are: limit blocks in the X-axis and Y-axis directions are set on the bearing platform, and the limit blocks in the two directions can be moved by two sets of motors independently, and the position can be automatically switched according to the specifications of the circuit board for precise positioning; when switching equipment types, no manual intervention is required, saving labor costs and improving the working efficiency and testing quality of the equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of this utility model (view orientation and...) Figure 1 on the contrary);

[0024] Figure 3 for Figure 2 A magnified view of point A;

[0025] Figure 4 for Figure 2 A magnified view of point B;

[0026] Figure 5 This is a side view of the structure of this utility model;

[0027] Figure 6 for Figure 5 SS sectional view;

[0028] Figure 7 for Figure 5 PP sectional view.

[0029] The diagram is marked as follows:

[0030] Support platform 1, first long slot 11, second long slot 12, first slide rail 13, detection hole 14;

[0031] Base 2, second slide rail 21;

[0032] X-axis direction limiting assembly 3, X-axis direction limiting plate 31, first connecting rod 32, first moving base 33, first drive motor 34, first belt 35, first driving pulley 36, first coaxial double pulley 37, first driven pulley 38, first auxiliary belt 39, first slider 310;

[0033] Y-axis direction limiting assembly 4, Y-axis direction limiting plate 41, second connecting rod 42, second moving base 43, second drive motor 44, second belt 45, second driving pulley 46, second coaxial double pulley 47, second driven pulley 48, second auxiliary belt 49, second slider 410;

[0034] X-axis position detection sensor group 5, first sensing plate 51, first sensor 52;

[0035] Y-axis position detection sensor group 6, second sensing plate 61, second sensor 62;

[0036] 7. Substrate positioning detection sensor. Detailed Implementation

[0037] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0039] See the attached figures. The automatic calibration and positioning mechanism for substrate inspection described in this embodiment includes a support platform 1, a base 2, an X-axis direction limiting component 3, a Y-axis direction limiting component 4, an X-axis position detection sensor group 5, a Y-axis position detection sensor group 6, and a substrate position detection sensor 7.

[0040] The support platform 1 is used to place the substrate. The support platform 1 has several first elongated slots 11 distributed in the X-axis direction, and a second elongated slot 12 distributed in the Y-axis direction in the middle of the support platform 1. A detection hole 14 is provided at the center of the support platform 1. The substrate placement detection sensor 7 is placed below the support platform 1, and the detection head of the substrate placement detection sensor 7 extends into the detection hole 14 to detect whether a substrate has been placed on the support platform 1, preventing it from being unloaded.

[0041] The X-axis direction limiting component 3 includes two openable X-axis direction limiting plates 31, and a first driving component that drives the X-axis direction limiting plates 31 to open and close. The first driving component is located below the support platform 1. The X-axis direction limiting plates 31 are elongated structures, and two can be provided for limiting the substrate in the X-axis direction.

[0042] Multiple first connecting rods 32 are fixed below the X-axis direction limiting plate 31. The first connecting rods 32 pass through the first long slot 11 of the bearing platform 1, and the other end of the first connecting rod 32 is fixedly connected to the first movable base 33, thereby fixing the X-axis direction limiting plate 31 and the first movable base 33 together.

[0043] The first drive assembly includes a first drive motor 34 and a first pulley group connected by a first belt 35. The first pulley group can be configured with a first driving pulley 36, a first coaxial double pulley 37, and a first driven pulley 38 according to usage requirements. The first driving pulley 36 is driven to rotate by the first drive motor 34. The first driving pulley 36 is connected to the first coaxial double pulley 37 via a first auxiliary belt 39. The first coaxial double pulley 37 is connected to the first driven pulley 38 via the first belt 35. The first belt 35 is arranged along the X-axis direction. Two first movable bases 33 are fixed on both sides of the first belt 35. The first belt 35 can drive the two first movable bases 33 to move closer or further apart. The lower surface of the bearing platform 1 is provided with a first slide rail 13 arranged in the X-axis direction. The first movable base 33 is provided with a first slider 310 that slides in cooperation with the first slide rail 13, making the movement of the first movable base more stable.

[0044] The X-axis positioning detection sensor group 5 includes a first sensing plate 51 and several first sensors 52. The first sensing plate 51 is fixed to the side of one of the first movable bases 33, and the first sensors 52 are fixed to the lower surface of the support platform 1. The first sensors 52 are provided with sensing grooves, and photoelectric sensors are provided in the middle of the sensing grooves. When the first sensing plate 51 passes through the sensing grooves, it can block the transmission of photoelectric signals, thereby determining the X-axis direction limiting plate 31 and facilitating the movement of the X-axis direction limiting plate 31 back to its original position.

[0045] The Y-axis direction limiting assembly 4 includes two openable Y-axis direction limiting plates 41 and a second driving assembly that drives the Y-axis direction limiting plates 41 to open and close. The second driving assembly is mounted on the base 2, which is located below the support platform 1. The Y-axis direction limiting plates 41 are located in the middle of the support platform 1 and are used to limit the substrate in the Y-axis direction. The Y-axis direction limiting plates 41 are connected to a second connecting rod 42 on their side. The second connecting rod 42 passes through the second elongated slot 12 of the support platform 1 and is fixedly connected to the second movable base 43, so that the Y-axis direction limiting plates 41 and the second movable base 43 are fixed together.

[0046] The second drive assembly includes a second drive motor 44 and a second pulley assembly connected by a second belt 45. The second pulley assembly can be configured with a second driving pulley 46, a second coaxial double pulley 47, and a second driven pulley 48 according to usage requirements. The second driving pulley 46 is driven to rotate by the second drive motor 44. The second driving pulley 46 is connected to the second coaxial double pulley 47 via a second auxiliary belt 49. The second coaxial double pulley 47 is connected to the second driven pulley 48 via the second belt 45. The second belt 45 is arranged along the Y-axis direction. Two second movable bases 43 are fixed on both sides of the second belt 45. The second belt 45 can drive the two second movable bases 43 to move closer or further apart. The upper surface of the base 2 is provided with a second slide rail 21 arranged along the Y-axis direction. The second movable base 43 is provided with a second slider 410 that slides in cooperation with the second slide rail 21, making the movement of the second movable base 43 more stable.

[0047] The Y-axis positioning sensor group 6 includes a second sensing plate 61 and several second sensors 62. The second sensing plate 61 is fixed to the lower surface of one side of the second movable base 43, and the second sensors 62 are fixed to the base 2. The two work together. The second sensors 62 are provided with sensing grooves, and photoelectric sensors are provided in the middle of the sensing grooves. When the second sensing plate 61 passes through the sensing grooves, it can block the transmission of photoelectric signals, thereby determining the Y-axis direction limiting plate 41 and facilitating the movement of the Y-axis direction limiting plate 41 back to its original position.

[0048] In use, the device is reset to its origin, and both the X-axis limiting plate 31 and the Y-axis limiting plate 41 are moved to their outermost positions. The circuit board is placed in the middle of the support platform 1, and the corresponding program is selected on the main screen according to the size of the circuit board. The first drive motor 34 and the second drive motor 44 are started, and the first belt 35 and the second belt 45 are moved through the pulley group, so that the X-axis limiting plate 31 and the Y-axis limiting plate 41 are moved to the set position, which can just limit the circuit board, so that the terminals on the circuit board are aligned with the probe position of the detection fixture, and the detection results are more accurate.

[0049] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An automatic correction positioning mechanism for substrate detection, characterized by: The utility model relates to a substrate positioning device, including: a bearing platform for placing a substrate; an X-axis direction limiting assembly including two openable X-axis direction limiting plates for limiting the substrate in the X-axis direction; a Y-axis direction limiting assembly including two openable Y-axis direction limiting plates for limiting the substrate in the Y-axis direction; an X-axis position detection sensor group for detecting the position of the X-axis direction limiting plates; a Y-axis position detection sensor group for detecting the position of the Y-axis direction limiting plates; the bearing platform is provided with long slot holes for a plurality of connecting rods to pass through, and the connecting rods are connected to the X-axis direction limiting plates and the Y-axis direction limiting plates, respectively.

2. The self-correcting positioning mechanism for substrate detection according to claim 1, wherein: a substrate position detection sensor is arranged at the center of the bearing platform.

3. The self-correcting positioning mechanism for substrate detection of claim 1, wherein: The X-axis direction limiting assembly further includes a first driving assembly for driving the X-axis direction limiting plates to open and close, and the first driving assembly is located below the bearing platform.

4. The self-correcting positioning mechanism for substrate detection of claim 3, wherein: The first driving assembly includes a first driving motor and a first pulley set connected by a first belt, the X-axis direction limiting plates are fixed on first moving bases through first connecting rods, and the first moving bases are fixed on the first belt.

5. The self-correcting positioning mechanism for substrate detection of claim 4, wherein: The X-axis position detection sensor group includes a first sensing sheet and a plurality of first sensors, the first sensing sheet is fixed on the side surface of one of the first moving bases, the first sensors are fixed on the lower surface of the bearing platform, and the two work in cooperation.

6. The self-correcting positioning mechanism for substrate detection of claim 4, wherein: The lower surface of the bearing platform is provided with a first sliding rail arranged in the X-axis direction, and the first moving bases are provided with first sliding blocks in sliding cooperation with the first sliding rail.

7. The self-correcting positioning mechanism for substrate detection of claim 1, wherein: The Y-axis direction limiting assembly further includes a second driving assembly for driving the Y-axis direction limiting plates to open and close, and the second driving assembly is installed on a base, which is located below the bearing platform.

8. The self-correcting positioning mechanism for substrate detection of claim 7, wherein: The second driving assembly includes a second driving motor and a second pulley set connected by a second belt, the Y-axis direction limiting plates are fixed on second moving bases through second connecting rods, and the second moving bases are fixed on the second belt.

9. The self-correcting positioning mechanism for substrate detection of claim 8, wherein: The Y-axis position detection sensor group includes a second sensing sheet and a plurality of second sensors, the second sensing sheet is fixed on the second moving bases, and the second sensors are fixed on the base, and the two work in cooperation.

10. The self-correcting positioning mechanism for substrate detection of claim 8, wherein: The upper surface of the base is provided with a second sliding rail arranged in the Y-axis direction, and the second moving bases are provided with second sliding blocks in sliding cooperation with the second sliding rail.

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