Alignment laminating device for rear camera lens of mobile phone

Abstract

The utility model provides an aligning and laminating device for a rear camera lens of a mobile phone. The aligning and laminating device comprises a base, a three-axis moving mechanism, a lens picking mechanism and a visual photographing mechanism, the three-axis moving mechanism is arranged on the base; the lens picking mechanism is fixed on the three-axis moving mechanism, and the three-axis moving mechanism drives the lens picking mechanism to move to the position above the mobile phone in the X-axis direction, the Y-axis direction or the Z-axis direction; the visual photographing mechanism is fixed to the three-axis moving mechanism, electrically connected with the three-axis moving mechanism and used for photographing and recognizing the lens to be picked up and the mobile phone to be attached. In the aligning and laminating device for the rear camera lens of the mobile phone, the three-axis moving mechanism drives the lens to move to the position to be laminated which is corrected by the visual photographing mechanism, so that the mobile phone and the lens are accurately aligned and laminated, the camera can be quickly and accurately mounted, personal errors are reduced, and the production efficiency is improved. And the alignment precision of the camera and the mobile phone is improved, so that the yield and the overall quality of finished products are improved.

Description

Technical Field

[0001] This utility model belongs to the field of mobile device processing technology, specifically relating to a device for aligning and bonding a rear camera lens of a mobile phone. Background Technology

[0002] In modern smartphone design, the installation of the rear camera is a crucial step, typically achieved by applying adhesive to the back of the phone and then attaching it. However, with the rapid development of mobile phone technology and consumers' increasing demands for image quality, traditional manual adhesive application and assembly methods are no longer sufficient to meet the growing precision requirements. Currently, most camera installation work still relies on manual operation, which is not only slow but also, due to human factors, makes it difficult to ensure that each rear camera is precisely aligned and fixed to the phone's back cover.

[0003] As the precision requirements for mobile phone component assembly continue to increase, the limitations of manual assembly are becoming increasingly apparent. For example, the difficulty in aligning the camera with the phone is becoming more and more prominent. This not only affects the optical center alignment of the camera but may also lead to a decrease in image quality, and in extreme cases, even damage to the camera. These problems ultimately result in lower yield rates, increased production costs, and a decline in the product's market competitiveness. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies in the existing technology and provide a device for aligning and bonding a rear camera lens of a mobile phone. The three-axis moving mechanism drives the lens to the bonding position after being corrected by the visual imaging mechanism, so that the mobile phone and the lens can be accurately aligned and bonded. This enables faster and more accurate camera installation, reduces human error, improves the alignment accuracy between the camera and the mobile phone, and thus improves the yield and overall quality of the finished product.

[0005] This utility model is achieved through the following technical solution:

[0006] A device for aligning and bonding a rear camera lens of a mobile phone includes a base, a three-axis moving mechanism, a lens picking mechanism, and a visual imaging mechanism. The three-axis moving mechanism is disposed on the base. The lens picking mechanism is fixed to the three-axis moving mechanism, and the three-axis moving mechanism drives the lens picking mechanism to move along the X-axis, Y-axis, or Z-axis to above the mobile phone. The visual imaging mechanism is fixed to the three-axis moving mechanism and electrically connected to the three-axis moving mechanism. The visual imaging mechanism is used to photograph and identify the lens to be picked up and the mobile phone to be bonded.

[0007] In the mobile phone rear camera lens alignment and bonding device provided by this utility model, a three-axis moving mechanism is mounted on a base, and a lens picking mechanism is fixed on the three-axis moving mechanism. Driven by the three-axis moving mechanism, the lens picking mechanism can move along the X, Y, and Z axes. Since the visual imaging mechanism is electrically connected to the three-axis moving mechanism, the visual imaging mechanism is used to photograph and identify the lens to be picked up and the mobile phone to be bonded. The visual imaging mechanism can identify the offset between the lens and the mobile phone by taking pictures, and use the three-axis moving mechanism to move the lens to the bonding position after correction by the visual imaging mechanism, thereby enabling the mobile phone and the lens to complete precise alignment and bonding. The mobile phone rear camera lens alignment and bonding device provided by this utility model can achieve faster and more accurate camera installation, reduce human error, improve the alignment accuracy between the camera and the mobile phone, thereby improving the yield and overall quality of the finished product.

[0008] Furthermore, the base includes two side-by-side support seats, forming an operating space between the two support seats for accommodating the mobile phone to be attached; the three-axis moving mechanism is disposed on the two support seats. The three-axis moving mechanism being disposed on the two support seats helps to increase the stability of the lens movement.

[0009] Furthermore, the three-axis moving mechanism includes an X-axis moving mechanism, a Y-axis moving mechanism, and a Z-axis moving mechanism; the Y-axis moving mechanism is mounted on two support bases; the X-axis moving mechanism is fixed to the Y-axis moving mechanism; the Z-axis moving mechanism is fixed to the X-axis moving mechanism; the lens picking mechanism is fixed to the Z-axis moving mechanism; and the visual imaging mechanism is fixed to the Z-axis moving mechanism and located on one side of the lens picking mechanism.

[0010] Furthermore, the Y-axis moving mechanism includes two Y-axis tracks, two Y-axis connecting blocks, and a Y-axis drive motor. The two Y-axis tracks are respectively mounted on the two support seats along the Y-axis direction. The two Y-axis connecting blocks are movably mounted side-by-side on the Y-axis tracks. The Y-axis drive motor is driven by the two Y-axis connecting blocks and drives them to move along the extension direction of the Y-axis tracks. Both ends of the X-axis moving mechanism are respectively connected to the two Y-axis movable blocks. The Y-axis connecting blocks move along the Y-axis direction under the drive of the Y-axis drive motor to adjust the displacement of the lens pickup mechanism in the Y-axis direction. The two Y-axis tracks contribute to the stability of the lens pickup mechanism's movement.

[0011] Furthermore, the X-axis moving mechanism includes an X-axis connecting frame, an X-axis track, an X-axis connecting block, and an X-axis drive motor. Both ends of the X-axis connecting frame are connected to two Y-axis movable blocks respectively. The X-axis track is disposed on the X-axis connecting frame along the X-axis direction. The X-axis connecting block is movably mounted on the X-axis track. The X-axis drive motor is driven by the X-axis connecting block and drives the X-axis connecting block to move along the extension direction of the X-axis track. The Z-axis moving mechanism is connected to the X-axis connecting block. Both ends of the X-axis connecting frame are connected to two Y-axis movable blocks respectively, used to securely fix the X-axis moving mechanism to the two Y-axis connecting blocks and provide space for laying the X-axis track. The X-axis connecting block moves along the X-axis direction under the drive of the X-axis drive motor to adjust the displacement of the lens pickup mechanism in the X-axis direction.

[0012] Furthermore, the Z-axis moving mechanism includes a Z-axis track, a Z-axis connecting block, and a Z-axis drive motor; the Z-axis track is disposed on the X-axis connecting block along the Z-axis direction; the Z-axis connecting block is movably mounted on the Z-axis track; the Z-axis drive motor is drivenly connected to the Z-axis connecting block and drives the Z-axis connecting block to move along the extension direction of the Z-axis track; the lens pickup mechanism and the visual imaging mechanism are disposed on the Z-axis movable block. The Z-axis connecting block moves along the Z-axis direction under the drive of the Z-axis drive motor to adjust the displacement of the lens pickup mechanism in the Z-axis direction.

[0013] Furthermore, the lens pickup mechanism includes a nozzle connecting plate, a lens nozzle, a nozzle drive motor, and a reciprocating motion assembly; the nozzle connecting plate is fixed to the three-axis drive device; both the lens nozzle and the reciprocating motion assembly are mounted on the nozzle connecting plate; the nozzle drive motor is driven by the reciprocating motion assembly, and the nozzle drive motor drives the reciprocating motion assembly to move along the Z-axis; the lens nozzle is fixed to the reciprocating motion assembly along the Z-axis. The lens nozzle and the reciprocating motion assembly are both mounted on the nozzle connecting plate, thereby connecting the lens pickup mechanism to the three-axis moving mechanism; the nozzle drive motor drives the reciprocating motion assembly to move along the Z-axis, causing the lens nozzle to move downwards to pick up the lens, and then return to its original position under the action of the reciprocating motion assembly.

[0014] Furthermore, the visual imaging mechanism includes a visual camera and an illumination source, the visual camera and the illumination source being coaxially arranged, with the illumination source located on the side of the visual camera furthest from the lens; the visual camera is electrically connected to the three-axis motion mechanism. The visual camera is used to take pictures and identify the relative position between the lens and the mobile phone, the illumination source being coaxially arranged with the visual camera to provide illumination; the visual camera is electrically connected to the three-axis motion mechanism, enabling the three-axis motion mechanism to receive adjustment information from the visual camera and adjust the placement position of the lens suction nozzle on the mobile phone.

[0015] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the alignment and bonding device for the rear camera lens of a mobile phone.

[0017] Figure 2 This is a schematic diagram of a three-axis moving mechanism.

[0018] Figure 3 This is a schematic diagram showing the connection between the Z-axis movement mechanism and the vision imaging mechanism.

[0019] Figure 4 This is a schematic diagram of the lens pickup mechanism. Detailed Implementation

[0020] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the embodiments of the present invention, and not all of the structures.

[0021] Similarly, the terms "fixed" and "connected" are used in the specification and claims and should not be construed as limited to a direct connection. Therefore, the expression "device A is connected to device B" should not be limited to device A being directly connected to device B in a device or system; it means that there is a path between device A and device B, which can be a path that includes other devices or tools.

[0022] Example 1

[0023] This embodiment provides a device for aligning and bonding a rear camera lens of a mobile phone. Figure 1 This is a structural diagram of the alignment and bonding device for the rear camera lens of a mobile phone. Please refer to [link / reference]. Figure 1 The alignment and bonding device for the rear camera lens of a mobile phone includes a base 1, a three-axis moving mechanism 2, a lens picking mechanism 3, and a visual imaging mechanism 4. The three-axis moving mechanism 2 is mounted on the base 1. The lens picking mechanism 3 is fixed on the three-axis moving mechanism 2, and the three-axis moving mechanism 2 drives the lens picking mechanism 3 to move along the X-axis, Y-axis, or Z-axis to the top of the mobile phone. The visual imaging mechanism 4 is fixed on the three-axis moving mechanism 2 and is electrically connected to the three-axis moving mechanism 2. The visual imaging mechanism 4 is used to take pictures and identify the lens to be picked up and the mobile phone to be bonded.

[0024] In the mobile phone rear camera lens alignment and bonding device provided in this embodiment, the three-axis moving mechanism 2 is mounted on the base 1, and the lens picking mechanism 3 is fixed on the three-axis moving mechanism 2. Driven by the three-axis moving mechanism 2, the lens picking mechanism 3 can move along the X-axis, Y-axis, and Z-axis directions. Since the visual imaging mechanism 4 is electrically connected to the three-axis moving mechanism 2, the visual imaging mechanism 4 is used to photograph and identify the lens to be picked up and the mobile phone to be bonded. The visual imaging mechanism 4 can identify the offset between the lens and the mobile phone by taking pictures, and use the three-axis moving mechanism 2 to drive the lens to the bonding position after correction by the visual imaging mechanism 4, so that the mobile phone and the lens can be accurately aligned and bonded. The mobile phone rear camera lens alignment and bonding device provided in this embodiment can achieve faster and more accurate camera installation, reduce human error, improve the alignment accuracy between the camera and the mobile phone, thereby improving the yield and overall quality of the finished product.

[0025] Figure 2 This is a structural diagram of a three-axis moving mechanism. Please refer to [link / reference]. Figure 1-2 In this embodiment, the base 1 includes two parallel support seats 11, forming an operating space between the two support seats 11 for accommodating the mobile phone to be attached; a three-axis moving mechanism 2 is disposed on the two support seats 11. The three-axis moving mechanism 2 is disposed on the two support seats 11, which helps to increase the stability of the lens movement.

[0026] Please see Figure 1-2 In this embodiment, the three-axis moving mechanism 2 includes an X-axis moving mechanism 21, a Y-axis moving mechanism 22, and a Z-axis moving mechanism 23; the Y-axis moving mechanism 22 is mounted on two support bases 11; the X-axis moving mechanism 21 is fixed to the Y-axis moving mechanism 22; the Z-axis moving mechanism 23 is fixed to the X-axis moving mechanism 21; the lens picking mechanism 3 is fixed to the Z-axis moving mechanism 23; and the visual imaging mechanism 4 is fixed to the Z-axis moving mechanism 23 and is located on one side of the lens picking mechanism 3.

[0027] Please see Figure 1-2 In this embodiment, the Y-axis moving mechanism 22 includes two Y-axis tracks 221, two Y-axis connecting blocks 222, and a Y-axis drive motor 223. The two Y-axis tracks 221 are respectively disposed on two support seats 11 along the Y-axis direction. The two Y-axis connecting blocks 222 are respectively movably mounted side by side on the Y-axis tracks 221. The Y-axis drive motor 223 is driven by the two Y-axis connecting blocks 222 and drives the two Y-axis connecting blocks 222 to move along the extension direction of the Y-axis tracks 221. The two ends of the X-axis moving mechanism 21 are respectively connected to the two Y-axis movable blocks. The Y-axis connecting blocks 222 move along the Y-axis direction under the drive of the Y-axis drive motor 223 to adjust the displacement of the lens picking mechanism 3 in the Y-axis direction. The two Y-axis tracks 221 are beneficial to the stability of the movement of the lens picking mechanism 3.

[0028] Please see Figure 1-2 In this embodiment, the X-axis moving mechanism 21 includes an X-axis connecting frame 214, an X-axis track 211, an X-axis connecting block 212, and an X-axis drive motor 213. The two ends of the X-axis connecting frame 214 are respectively connected to two Y-axis movable blocks. The X-axis track 211 is arranged on the X-axis connecting frame 214 along the X-axis direction. The X-axis connecting block 212 is movably mounted on the X-axis track 211. The X-axis drive motor 213 is drivenly connected to the X-axis connecting block 212 and drives the X-axis connecting block 212 to move along the extension direction of the X-axis track 211. The Z-axis moving mechanism 23 is connected to the X-axis connecting block 212. The two ends of the X-axis connecting frame 214 are respectively connected to two Y-axis movable blocks, which are used to securely fix the X-axis moving mechanism 21 on the two Y-axis connecting blocks 222 and provide space for laying the X-axis track 211; the X-axis connecting block 212 moves along the X-axis direction under the drive of the X-axis drive motor 213 to adjust the displacement of the lens picking mechanism 3 in the X-axis direction.

[0029] Figure 3 This is a schematic diagram showing the connection between the Z-axis movement mechanism and the vision imaging mechanism. Please refer to [link / reference]. Figure 2-3 In this embodiment, the Z-axis moving mechanism 23 includes a Z-axis track 231, a Z-axis connecting block 232, and a Z-axis drive motor 233. The Z-axis track 231 is disposed on the X-axis connecting block 212 along the Z-axis direction. The Z-axis connecting block is movably mounted on the Z-axis track 231. The Z-axis drive motor 233 is drivenly connected to the Z-axis connecting block 232 and drives the Z-axis connecting block 232 to move along the extension direction of the Z-axis track 231. The lens pickup mechanism 3 and the visual imaging mechanism 4 are disposed on the Z-axis movable block. The Z-axis connecting block 232 moves along the Z-axis direction under the drive of the Z-axis drive motor 233 to adjust the displacement of the lens pickup mechanism 3 in the Z-axis direction.

[0030] Figure 4 This is a schematic diagram of the lens pickup mechanism. Please refer to it. Figure 3-4 In this embodiment, the lens pickup mechanism 3 includes a nozzle connecting plate 31, a lens nozzle 32, a nozzle drive motor 33, and a reciprocating motion assembly 34. The nozzle connecting plate 31 is fixed to the three-axis drive device. The lens nozzle 32 and the reciprocating motion assembly 34 are both mounted on the nozzle connecting plate 31. The nozzle drive motor 33 is driven to move along the Z-axis direction. The lens nozzle 32 is fixed to the reciprocating motion assembly 34 along the Z-axis direction. The lens nozzle 32 and the reciprocating motion assembly 34 are both mounted on the nozzle connecting plate 31, thereby connecting the lens pickup mechanism 3 to the three-axis moving mechanism 2. The nozzle drive motor 33 drives the reciprocating motion assembly 34 to move along the Z-axis direction, causing the lens nozzle 32 to move downward to pick up the lens, and then return to its original position under the action of the reciprocating motion assembly 34.

[0031] Please see Figure 3-4In one embodiment, the reciprocating motion assembly 34 includes a nozzle mounting plate 341, a nozzle vertical moving track 342, a nozzle vertical moving block 343, a return spring 344, and a return connecting plate 345.

[0032] The nozzle mounting plate 341 is connected to the output shaft of the nozzle drive motor 33. A vertical moving track 342 for the nozzle is provided on the side of the nozzle mounting plate 341 that is away from the Z-axis track 231. The vertical moving block 343 for the nozzle is movably mounted on the vertical moving track 342.

[0033] The reset connecting plate 345 is U-shaped. A spring mounting through hole is provided on the first end of the reset connecting plate. One end of the reset spring 344 is fixed to the side of the nozzle mounting plate 341 away from the nozzle drive motor 33, and the other end is fixed in the spring mounting through hole.

[0034] The middle part of the reset connecting plate 345 is fixed to the vertical moving block 343 of the suction nozzle; the lens suction nozzle 32 is fixedly connected to the second end of the reset connecting plate 345.

[0035] Driven by the nozzle drive motor 33, the nozzle mounting plate 341 moves downward, causing the nozzle vertical moving block 343 to move downward on the nozzle vertical moving track 342, thereby causing the reset connecting plate 345 to move downward, so that the nozzle moves downward to adsorb the lens. At this time, the reset spring 344 is compressed. The nozzle drive motor 33 removes the driving force, the reset spring 344 releases the elastic potential energy, and drives the lens suction nozzle 32 to move upward, thus completing the reciprocating motion.

[0036] Please see Figure 3 In this embodiment, the visual imaging mechanism 4 includes a visual camera 41 and an illumination source 42, which are coaxially arranged. The illumination source 42 is located on the side of the visual camera 41 away from the lens. The visual camera 41 is electrically connected to the three-axis moving mechanism 2. The visual camera 41 is used to take pictures and identify the relative position between the lens and the mobile phone. The illumination source 42 is coaxially arranged with the visual camera 41 to provide illumination. The visual camera 41 is electrically connected to the three-axis moving mechanism 2, so that the three-axis moving mechanism 2 receives the adjustment information from the visual camera 41 and adjusts the placement position of the lens suction nozzle 32 on the mobile phone.

[0037] In one embodiment, the machine vision camera 41 is a CCD camera or a CMOS camera.

[0038] During operation, the three-axis moving mechanism 2 drives the lens picking mechanism 3 to move to the lens placement position. The vision camera 41 takes a picture of the lens to be picked up and acquires the first image information. The suction nozzle drive motor 33 drives the reciprocating motion component 34 to move downward, thereby driving the lens suction nozzle 32 to move downward to pick up the lens after the picture is taken. The lens suction nozzle 32 is reset under the drive of the reciprocating motion component 34 and moves to the top of the mobile phone to be mounted under the drive of the three-axis moving mechanism 2. The vision camera 41 takes a picture of the mobile phone to be mounted and acquires the second image information. The first image information and the second image information are compared to correct the lens and the lens. The offset between the mobile phones is adjusted to avoid optical center misalignment. The mobile phone to be bonded is placed in the operating space formed by two parallel support bases 11. The vision camera 41 is electrically connected to the three-axis moving mechanism 2 and transmits the identified correction signal to the three-axis moving mechanism 2. The three-axis moving mechanism 2 adjusts the displacement of the lens suction nozzle 32 in the X, Y, and Z axes according to the correction signal until it moves to the correction position in the operating space. The suction nozzle drive motor 33 drives the reciprocating motion component 34 to move downward to drive the lens suction nozzle 32 to move downward. The lens suction nozzle 32 releases the lens onto the mobile phone, completing the alignment and bonding between the lens and the mobile phone.

[0039] This utility model is not limited to the above-described embodiments. If any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A device for aligning and bonding a rear camera lens for a mobile phone, characterized in that: Includes a base, a three-axis motion mechanism, a lens pickup mechanism, and a visual imaging mechanism; The three-axis moving mechanism is mounted on the base; the lens picking mechanism is fixed to the three-axis moving mechanism, and the three-axis moving mechanism drives the lens picking mechanism to move along the X-axis, Y-axis or Z-axis to above the mobile phone; the visual imaging mechanism is fixed to the three-axis moving mechanism, and the visual imaging mechanism is electrically connected to the three-axis moving mechanism. The visual imaging mechanism is used to take pictures and identify the lens to be picked up and the mobile phone to be attached.

2. The alignment and bonding device for the rear camera lens of a mobile phone according to claim 1, characterized in that: The base includes two side-by-side support seats, forming an operating space between the two support seats for accommodating the mobile phone to be attached; the three-axis moving mechanism is disposed on the two support seats.

3. The alignment and bonding device for the rear camera lens of a mobile phone according to claim 2, characterized in that: The three-axis moving mechanism includes an X-axis moving mechanism, a Y-axis moving mechanism, and a Z-axis moving mechanism; The Y-axis moving mechanism is mounted on the two support bases; the X-axis moving mechanism is fixed to the Y-axis moving mechanism; the Z-axis moving mechanism is fixed to the X-axis moving mechanism. The lens pickup mechanism is fixed to the Z-axis moving mechanism; The visual imaging mechanism is fixed to the Z-axis moving mechanism and is located on one side of the lens picking mechanism.

4. The alignment and bonding device for the rear camera lens of a mobile phone according to claim 3, characterized in that: The Y-axis moving mechanism includes two Y-axis tracks, two Y-axis connecting blocks, and a Y-axis drive motor; the two Y-axis tracks are respectively disposed on the two support seats along the Y-axis direction; the two Y-axis connecting blocks are respectively movably mounted side by side on the Y-axis tracks; the Y-axis drive motor is drivenly connected to the two Y-axis connecting blocks and drives the two Y-axis connecting blocks to move along the extension direction of the Y-axis tracks; The two ends of the X-axis moving mechanism are respectively connected to the two Y-axis movable blocks.

5. The alignment and bonding device for the rear camera lens of a mobile phone according to claim 4, characterized in that: The X-axis moving mechanism includes an X-axis connecting frame, an X-axis track, an X-axis connecting block, and an X-axis drive motor; both ends of the X-axis connecting frame are respectively connected to two Y-axis movable blocks; the X-axis track is arranged on the X-axis connecting frame along the X-axis direction; the X-axis connecting block is movably mounted on the X-axis track; the X-axis drive motor is drivenly connected to the X-axis connecting block and drives the X-axis connecting block to move along the extension direction of the X-axis track; The Z-axis moving mechanism is connected to the X-axis connecting block.

6. The alignment and bonding device for the rear camera lens of a mobile phone according to claim 5, characterized in that: The Z-axis moving mechanism includes a Z-axis track, a Z-axis connecting block, and a Z-axis drive motor; The Z-axis track is disposed on the X-axis connecting block along the Z-axis direction; the Z-axis connecting block is movably mounted on the Z-axis track; the Z-axis drive motor is drivenly connected to the Z-axis connecting block and drives the Z-axis connecting block to move along the extension direction of the Z-axis track; The lens pickup mechanism and the visual imaging mechanism are mounted on the Z-axis connecting block.

7. The alignment and bonding device for the rear camera lens of a mobile phone according to claim 1, characterized in that: The lens pickup mechanism includes a nozzle connecting plate, a lens nozzle, a nozzle drive motor, and a reciprocating motion assembly; the nozzle connecting plate is fixed to the three-axis moving mechanism; the lens nozzle and the reciprocating motion assembly are both mounted on the nozzle connecting plate; The suction nozzle drive motor is connected to the reciprocating motion component, and the suction nozzle drive motor drives the reciprocating motion component to move along the Z-axis direction; The lens suction nozzle is fixed to the reciprocating motion assembly along the Z-axis.

8. The alignment and bonding device for the rear camera lens of a mobile phone according to claim 1, characterized in that: The visual imaging mechanism includes a visual camera and an illumination source. The visual camera and the illumination source are coaxially arranged, and the illumination source is located on the side of the visual camera away from the lens. The visual camera is electrically connected to the three-axis moving mechanism.

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