Width detector for 2D bonding wire

Abstract

The utility model relates to a width detector, in particular to a width detector for a 2D bonding wire. Comprising a fixed plate, a left-right moving mechanism, a first moving plate, a first sliding rail, an up-down moving mechanism, a second sliding rail, a second moving plate and the like. A left-right moving mechanism is arranged on the upper side of the fixing plate, a first moving plate is connected to the front side of the left-right moving mechanism, a first sliding rail is installed on the upper portion of the fixing plate, and the first moving plate is in sliding connection with the first sliding rail. A second sliding rail is installed on the front side of the first moving plate, and the second moving plate is slidably connected with the second sliding rail. According to the utility model, the plurality of light sources and the angle adjusting mechanism are arranged, so that the welding wire can be irradiated from a plurality of angles, each part of the welding wire can be fully illuminated and detected, and the tiny defect of possible omission caused by shadow shielding or light reflection is avoided.

Description

Technical Field

[0001] This utility model relates to a width detector, and more particularly to a 2D wire bonding width detector. Background Technology

[0002] A 2D wire bonding width detector is a precision instrument specifically designed to measure the width of wire bonding lines on a 2D plane. It enables rapid and accurate measurement of wire bonding width and is widely used in welding quality inspection in industries such as electronics, semiconductors, automobiles, and aerospace. The working principle of the 2D wire bonding width detector is mainly based on the principles of laser diffraction or photoelectric measurement. It generates a laser stripe or photoelectric signal of a specific width on the surface of the wire bonding line being measured and reflects it back. Then, the signal is detected and processed by the detector or sensor in the device to finally obtain the width value of the wire bonding line.

[0003] Existing detectors have a limited range of light sources, which cannot adequately illuminate the solder wires from multiple angles. As a result, during actual testing, some areas of the solder wires may be under-illuminated or subject to light interference due to shadows or abnormal light reflections. This can lead to the missed detection of minor defects, affecting the test results and reducing the accuracy and reliability of the test. Utility Model Content

[0004] To overcome the drawback that a single light source may lead to poor image quality, the technical problem of this utility model is to provide a 2D wire bonding width detector.

[0005] The technical solution is as follows: A 2D wire bonding width detector includes a fixed plate, a left-right moving mechanism, a first moving plate, a first slide rail, a right-up moving mechanism, a second slide rail, a second moving plate, a detector, a connecting plate, a light shield, a mounting plate, a light source, and an angle adjustment mechanism. The fixed plate has a left-right moving mechanism on its upper side, with the first moving plate connected to the front of the left-right moving mechanism. The fixed plate has a first slide rail mounted on its upper side, and the first moving plate is slidably connected to the first slide rail. The right side of the first moving plate has a right-up moving mechanism, and the left side of the right-up moving mechanism is connected to the second moving plate. The first moving plate has a second slide rail mounted to its front side, and the second moving plate is slidably connected to the second slide rail. A detector is mounted to the front of the second moving plate. The lower side of the first moving plate has a connecting plate, and the lower side of the connecting plate has a light shield. The light shield has a mounting plate circumferentially mounted on it. Multiple light sources are rotatably mounted on the lower side of the mounting plate, and each light source has an angle adjustment mechanism between it and the mounting plate.

[0006] Furthermore, the left and right moving mechanism includes a first servo motor, a first lead screw, and a first nut. The first servo motor is mounted on the upper part of the fixed plate, the output shaft of the first servo motor is connected to the first lead screw, the first lead screw is rotatably connected to the fixed plate, and the first nut is fitted on the first lead screw. The first nut is connected to the first moving plate.

[0007] Furthermore, the up-and-down moving mechanism includes a second servo motor, a second lead screw, and a second nut. The second servo motor is mounted on the front side of the first moving plate. The output shaft of the second servo motor is connected to the second lead screw. The second lead screw is rotatably connected to the first moving plate. The second nut is fitted on the second lead screw and is connected to the second moving plate.

[0008] Furthermore, it also includes a protective box, with the detector located inside the protective box on the front side of the first movable plate.

[0009] Furthermore, the protective box has multiple ventilation holes.

[0010] Furthermore, the angle adjustment mechanism includes an electric slide rail, an annular push plate, a push rod, and a connecting rod. The electric slide rail is located on the underside of the mounting plate. The annular push plate is connected to the moving part of the electric slide rail. Multiple push rods are located on the underside of the annular push plate. Each push rod is rotatably connected to the connecting rod, and the connecting rod is rotatably connected to the light source.

[0011] Furthermore, it also includes a limiting block. The side wall of the light shield is provided with a limiting block, and the limiting block has a groove. The shape of the groove matches the connecting rod.

[0012] The beneficial effects of this utility model are as follows: 1. Through the coordinated work of the left and right moving mechanism and the up and down moving mechanism, this utility model can accurately control the movement of the detector in the horizontal and vertical directions, ensuring that the detector can accurately align with the position of the solder wire to be detected, thereby improving the detection accuracy. Through the setting of multiple light sources and angle adjustment mechanisms, the solder wire can be illuminated from multiple angles, ensuring that every part of the solder wire can be fully illuminated and detected, avoiding minor defects that may be missed due to shadows or light reflection.

[0013] 2. This utility model provides a relatively closed and safe working environment for the detector through the design of the protective box, which can effectively prevent external factors such as dust and debris from interfering with and damaging the detector. The multiple ventilation holes on the protective box help to dissipate the heat generated by the detector during operation in a timely manner, preventing the internal temperature from being too high and affecting the performance and stability of the detector. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention after the protective box has been removed.

[0016] Figure 3 This is a three-dimensional structural diagram of the first servo motor, the first lead screw, and the first nut.

[0017] Figure 4This is a three-dimensional structural diagram of the second servo motor, the second lead screw, and the second nut.

[0018] Figure 5 This is a three-dimensional structural diagram of the second lead screw, the second nut, and the second movable plate.

[0019] Figure 6 This is a three-dimensional structural diagram of the detector, connecting plate, and light shield of this utility model.

[0020] Figure 7 This is a three-dimensional structural diagram of the light source, electric slide rail, and annular push plate of this utility model.

[0021] Figure 8 for Figure 7 A magnified view of a portion of point A in the middle.

[0022] Reference numerals: 1_Fixed plate, 2_First servo motor, 3_First lead screw, 4_First nut, 5_First moving plate, 6_First slide rail, 7_Second servo motor, 8_Second lead screw, 9_Second nut, 10_Second slide rail, 11_Second moving plate, 12_Detector, 13_Protective box, 14_Connecting plate, 15_Light shield, 16_Mounting plate, 17_Light source, 18_Electric slide rail, 19_Annular push plate, 20_Push rod, 21_Connecting rod, 22_Limit block. Detailed Implementation

[0023] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0024] A 2D wire bonding width detector, such as Figures 1-7As shown, the device includes a fixed plate 1, a left-right moving mechanism, a first moving plate 5, a first slide rail 6, a right-up moving mechanism, a second slide rail 10, a second moving plate 11, a detector 12, a connecting plate 14, a light shield 15, a mounting plate 16, a light source 17, and an angle adjustment mechanism. The fixed plate 1 has a left-right moving mechanism on its upper side, and the first moving plate 5 is connected to the front of the left-right moving mechanism. Two first slide rails 6 are installed on the upper part of the fixed plate 1, located at the top and bottom of the left-right moving mechanism respectively. Both first slide rails 6 are slidably connected to the first moving plate 5. The right side of the first moving plate 5 has a right-up moving mechanism. The moving mechanism has a second moving plate 11 connected to the left side of the up-down moving mechanism. Two second slide rails 10 are installed on the front side of the first moving plate 5. Both second slide rails 10 are slidably connected to the second moving plate 11. A detector 12 is installed on the front side of the second moving plate 11. A connecting plate 14 is provided on the lower side of the first moving plate 5. A light shield 15 is provided on the lower side of the connecting plate 14. A through hole is opened in the middle of the light shield 15. A mounting plate 16 is provided around the light shield 15. Multiple light sources 17 are rotatably arranged around the middle of the light shield 15 on the lower side of the mounting plate 16. An angle adjustment mechanism is provided between each light source 17 and the mounting plate 16.

[0025] In use, the left-right moving mechanism drives the first moving plate 5 to move left and right. The first moving plate 5 slides on the first slide rail 6 until the detector 12 is aligned with the object to be detected. The up-down moving mechanism drives the second moving plate 11 and the detector 12 to move up and down. The second moving plate 11 slides on the second slide rail 10 until the detector 12 moves to a suitable detection height. Then the light source 17 lights up and illuminates from multiple angles to ensure that every part of the solder wire can be fully illuminated and detected, improving the accuracy of the image. The angle adjustment mechanism can adjust the angle of the light source 17, which can better control the distribution of light and reduce the influence of external ambient light on the detection results.

[0026] like Figure 2 and Figure 3 As shown, the left and right moving mechanism includes a first servo motor 2, a first lead screw 3, and a first nut 4. The first servo motor 2 is installed on the upper left side of the fixed plate 1. The output shaft of the first servo motor 2 is connected to the first lead screw 3. The first lead screw 3 is rotatably connected to the fixed plate 1. The first nut 4 is fitted on the first lead screw 3. The first nut 4 can move left and right under the drive of the first lead screw 3. The front side of the first nut 4 is connected to the first moving plate 5. When left and right movement is required, the first servo motor 2 drives the first lead screw 3 to rotate, and the first lead screw 3 will drive the first nut 4 to move left and right on it. The first nut 4 drives the first moving plate 5 and its components to move left and right.

[0027] like Figure 4 and Figure 5As shown, the up-and-down moving mechanism includes a second servo motor 7, a second lead screw 8, and a second nut 9. The second servo motor 7 is mounted on the front side of the first moving plate 5. The output shaft of the second servo motor 7 is connected to the second lead screw 8. The second lead screw 8 is rotatably connected to the first moving plate 5. The second nut 9 is fitted on the second lead screw 8. The second nut 9 can move up and down under the drive of the second lead screw 8. The second nut 9 is connected to the second moving plate 11. When up-and-down movement is required, the second servo motor 7 drives the second lead screw 8 to rotate, the second lead screw 8 drives the second nut 9 to move up and down, and the second nut 9 drives the second moving plate 11 and the detector 12 and other components to move up and down.

[0028] like Figure 1 As shown, it also includes a protective box 13. The protective box 13 is provided on the front side of the first movable plate 5, and the detector 12 is located inside the protective box 13. The protective box 13 is used to protect the detector 12 from interference or damage from the external environment, such as preventing dust or other debris from directly contacting and damaging the detector 12.

[0029] The protective box 13 has multiple ventilation holes on its side wall; the ventilation holes can dissipate the heat generated inside the protective box 13 due to the operation of the detector 12, and prevent the internal temperature from being too high and affecting the operation of the detector 12.

[0030] like Figure 7 and Figure 8 As shown, the angle adjustment mechanism includes an electric slide rail 18, an annular push plate 19, a push rod 20, and a connecting rod 21. Electric slide rails 18 are provided on both the front and rear sides of the lower side of the mounting plate 16. The moving parts of both electric slide rails 18 are connected to the annular push plate 19. The lower side of the annular push plate 19 has the same number of push rods 20 as the light source, positioned opposite each other. Each push rod 20 is rotatably connected to the connecting rod 21, which is rotatably connected to the light source 17. When the angle of the light source 17 needs to be adjusted, the electric slide rail 18 drives the annular push plate 19 to move up or down. The annular push plate 19 drives the push rod 20 to move, and the push rod 20 pulls or pushes the connecting rod 21. Since the light source 17 and the mounting plate 16 are rotatably connected, the connecting rod 21 pulls or pushes the lower part of the light source 17, achieving the purpose of adjusting the angle of the light source 17.

[0031] like Figure 8 As shown, it also includes a limiting block 22. The side wall of the light shield 15 is provided with a limiting block 22, and the limiting block 22 is provided with a groove. The shape of the groove matches the connecting rod 21. The limiting block 22 can limit the movement range of the connecting rod 21, so that the light source 17 will not touch the light shield 15 when adjusting the angle.

[0032] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A 2D wire bonding width detector, comprising a fixed plate (1), a left-right moving mechanism, a first moving plate (5), a first slide rail (6), a right-up moving mechanism, a second slide rail (10), a second moving plate (11), and a detector (12), wherein the fixed plate (1) is provided with a left-right moving mechanism on its upper side, the first moving plate (5) is connected to the front side of the left-right moving mechanism, the first slide rail (6) is installed on the upper part of the fixed plate (1), the first moving plate (5) is slidably connected to the first slide rail (6), the right side of the first moving plate (5) is provided with a right-up moving mechanism, the left side of the right-up moving mechanism is connected to the second moving plate (11), the second slide rail (10) is installed to the front side of the first moving plate (5), the second moving plate (11) is slidably connected to the second slide rail (10), and the detector (12) is installed to the front side of the second moving plate (11), characterized in that, It also includes a connecting plate (14), a light shield (15), a mounting plate (16), a light source (17), and an angle adjustment mechanism. The first moving plate (5) is provided with a connecting plate (14) on its lower side, and a light shield (15) is provided on its lower side. The light shield (15) is provided with a mounting plate (16) around its circumference. Multiple light sources (17) are rotatably provided on the lower side of the mounting plate (16). An angle adjustment mechanism is provided between each light source (17) and the mounting plate (16).

2. A 2D wire bonding width detector according to claim 1, characterized in that, left and right... The moving mechanism includes a first servo motor (2), a first lead screw (3) and a first nut (4). The first servo motor (2) is mounted on the upper part of the fixed plate (1). The output shaft of the first servo motor (2) is connected to the first lead screw (3). The first lead screw (3) is rotatably connected to the fixed plate (1). The first nut (4) is fitted on the first lead screw (3). The first nut (4) is connected to the first moving plate (5).

3. A 2D wire bonding width detector according to claim 2, characterized in that, The up-and-down moving mechanism includes a second servo motor (7), a second lead screw (8), and a second nut (9). The second servo motor (7) is mounted on the front side of the first moving plate (5). The output shaft of the second servo motor (7) is connected to the second lead screw (8). The second lead screw (8) is rotatably connected to the first moving plate (5). The second nut (9) is fitted on the second lead screw (8). The second nut (9) is connected to the second moving plate (11).

4. A 2D wire bonding width detector according to claim 3, characterized in that, It also includes a protective box (13), with the protective box (13) located on the front side of the first movable plate (5), and the detector (12) located inside the protective box (13).

5. A 2D wire bonding width detector according to claim 4, characterized in that, The protective box (13) has multiple ventilation holes.

6. A 2D wire bonding width detector according to claim 5, characterized in that the angle... The adjustment mechanism includes an electric slide rail (18), an annular push plate (19), a push rod (20), and a connecting rod (21). The electric slide rail (18) is provided on the lower side of the mounting plate (16). The annular push plate (19) is connected to the moving part of the electric slide rail (18). Multiple push rods (20) are provided on the lower side of the annular push plate (19). Each push rod (20) is rotatably connected to the connecting rod (21). The connecting rod (21) is rotatably connected to the light source (17).

7. A 2D wire bonding width detector according to claim 6, characterized in that, It also includes a limiting block (22), the side wall of the light shield (15) is provided with a limiting block (22), the limiting block (22) is provided with a groove, the shape of the groove matches the connecting rod (21).

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