Wide deviation correction sensor device

Abstract

The utility model belongs to the technical field of laser, and particularly relates to a wide deviation correction sensor device which comprises a transmitting part and a receiving part which are relatively fixed, a gap is preset between the transmitting part and the receiving part, a first convex lens is arranged at the transmitting end of the transmitting part, and a light source is arranged at the focus of the side, opposite to the receiving part, of the first convex lens in the transmitting part. A connecting line segment between the transmitting part and the receiving part is L, at least two lasers are arranged on the face, facing the transmitting part, of the receiving part, a gap is preset between any two adjacent lasers on the receiving part, and light beams transmitted by the two lasers are parallel to the L. A moving driver is arranged in the transmitting part. A light source is fixedly arranged at the execution end of the moving driver through a mounting plate, the moving direction of the light source driven by the moving driver is parallel to the L. An industrial camera for shooting the light source is arranged in the emitting part and is in signal connection with the moving driver. The problem that no device capable of automatically adjusting the position relation between the laser diode and the focus of the first convex lens exists at present is solved.

Description

Technical Field

[0001] The present application belongs to the field of laser technology, and specifically relates to a wide-width deviation correction sensor device. Background Art

[0002] Laser diodes have been widely used as light sources in various optical fields. However, the direct emission from laser diodes has a large divergence angle, so they are often paired with a collimating lens and a receiver to form a collimated optical path. Specifically, the laser diode is abstracted as a point light source. The beam emitted by the laser diode is then parallelized after passing through a convex lens. However, this technology requires ensuring that the laser diode is positioned at the focal point of the convex lens to achieve parallelization. However, current methods for adjusting the positional relationship between the laser diode and the focal point of the convex lens are imprecise. During high-precision measurements, the laser diode can easily deviate from the focal point of the convex lens due to vibration during equipment transportation or handling, as well as after repairs or replacements of the laser diode or convex lens. This necessitates readjustment of the positional relationship between the laser diode and the convex lens during use. Currently, there is no device in the collimated optical path that can automatically adjust the positional relationship between the laser diode and the focal point of the convex lens. Utility Model Content

[0003] The purpose of this application is mainly to address the shortcomings of the existing technology. By setting up a mobile driver in conjunction with an industrial camera and a laser, a wide-width correction sensor device is designed. The device can automatically adjust the light source to the focus of the first convex lens according to actual conditions, thereby obtaining parallel light that is easy for the receiving part to receive. This solves the problem that there is currently no device that can automatically adjust the positional relationship between the laser diode and the focus of the first convex lens.

[0004] In order to achieve the above objectives, the technical solution adopted in this application is:

[0005] A wide-width correction sensor device includes a relatively fixed transmitting part and a receiving part, with a preset gap between the transmitting part and the receiving part, a first convex lens is provided at the transmitting end of the transmitting part, and a light source is provided in the transmitting part at the focus of the first convex lens on the side facing away from the receiving part, the connecting line segment between the transmitting part and the receiving part is L, at least two lasers are provided on the side of the receiving part facing the transmitting part, a preset gap is provided between any two adjacent lasers on the receiving part, the light beams emitted by the two lasers are parallel to the L, and the light beams emitted by the two lasers can pass through the first convex lens, a mobile driver is provided in the transmitting part, the execution end of the mobile driver fixes the light source through a mounting plate, the moving direction of the light source driven by the mobile driver is parallel to L, an industrial camera for photographing the light source is provided in the transmitting part, and the industrial camera signal is connected to the mobile driver.

[0006] Preferably, the mobile driver includes a servo motor, a screw rod, and a nut. The screw rod is rotatably arranged in the transmitting part, and a mounting hole is provided on the side of the transmitting part facing the receiving part. The screw rod is parallel to the axis of the mounting hole, and the nut is threadedly connected between the two ends of the screw rod. A plane on the nut parallel to the screw rod is in the mounting hole, and a sliding groove is provided axially on the circumferential wall of the mounting hole for the nut to slide along the axis direction of the mounting hole. The nut is fixedly connected to the mounting plate in the mounting hole, the industrial camera signal is connected to the servo motor, and the output shaft of the servo motor is connected to the screw rod.

[0007] Preferably, the light source is a laser diode.

[0008] Preferably, the distance between the transmitting part and the receiving part is 10 cm.

[0009] Preferably, a photosensor is provided at the light source, and the photosensor signal is connected to the servo motor.

[0010] Preferably, a through hole is provided on the receiving part, the axis of the through hole is parallel to L, a second convex lens is coaxially provided in the through hole, the connecting line segment between the focus of the first convex lens and the focus of the second convex lens is N, and N is parallel to L, and a CMOS receiver is provided in the through hole on the side of the second convex lens facing away from the first convex lens.

[0011] Preferably, it further comprises a connecting block, one end of the connecting block is radially fixedly connected to the transmitting part; the other end of the connecting block is radially fixedly connected to the receiving part; a U-shape is formed among the connecting block, the transmitting part and the receiving part.

[0012] Compared with the prior art, this application has the following beneficial effects:

[0013] 1. This application adopts the method of setting up a mobile driver in conjunction with an industrial camera and a laser to design a wide-width correction sensor device, which can automatically adjust the light source to the focus of the first convex lens according to actual conditions, thereby obtaining parallel light that is easy for the receiving part to receive, solving the problem that there is currently no device that can automatically adjust the positional relationship between the laser diode and the focus of the first convex lens.

[0014] 2. After receiving a signal from the industrial camera, the servo motor in this application drives the screw to rotate. This rotation of the screw causes the nut to slide within the slot, thereby moving the mounting plate. Of course, the servo motor is equipped with a controller, which controls the operation of the industrial camera after receiving the signal from the industrial camera.

[0015] 3. In the present application, after the mounting plate is adjusted to the focal point of the first convex lens, the light sensor senses light and transmits a signal to the servo motor, and the servo motor stops working. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the external structure of this application;

[0017] Figure 2 This is the structural diagram on the right side of this application;

[0018] Figure 3 for Figure 2 Middle AA section;

[0019] Figure 4 for Figure 2 Middle BB cross-section;

[0020] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0021] Figure 6 This is a diagram of the relationship between the mounting plate and the nut.

[0022] Among them, 1. Transmitter; 2. Receiver; 3. First convex lens; 4. Laser; 5. Mounting plate; 6. Industrial camera; 7. Servo motor; 8. Screw; 9. Nut; 10. Mounting hole; 11. Slide groove; 12. Laser diode; 13. Photosensitive sensor; 14. Through hole; 15. Second convex lens; 16. Connector; 17. CMOS receiver; 18. Plane mirror. DETAILED DESCRIPTION

[0023] like Figure 1-6As shown, a wide-width correction sensor device includes a relatively fixed transmitting part 1 and a receiving part 2, a preset gap between the transmitting part 1 and the receiving part 2, a first convex lens 3 is provided at the transmitting end of the transmitting part 1, and a light source is provided at the focus of the first convex lens 3 on the side facing away from the receiving part 2 in the transmitting part 1, the connecting line segment between the transmitting part 1 and the receiving part 2 is L, at least two lasers 4 are provided on the side of the receiving part 2 facing the transmitting part 1, a preset gap is provided between any two adjacent lasers 4 on the receiving part 2, the light beams emitted by the two lasers 4 are parallel to the L, and the light beams emitted by the two lasers 4 can pass through the first convex lens 3, a mobile driver is provided in the transmitting part 1, the execution end of the mobile driver fixes the light source through the mounting plate 5, and the moving direction of the light source driven by the mobile driver is parallel to L, an industrial camera 6 for photographing the light source is provided in the transmitting part, and the signal of the industrial camera 6 is connected to the mobile driver.

[0024] In this embodiment, the light emitted from the light source's emitting unit 1 must be parallel. Therefore, the light source must be located at the focal point of the first convex lens 3 to ensure that the emitted light is parallel and straight. Therefore, adjustment is required before use. Before use, the two lasers 4 are turned on without turning on the light source. After the light emitted by the two lasers 4 passes through the first convex lens 3, the light emitted by the two lasers 4 is focused at the focal point of the first convex lens 3. At this point, the industrial camera 6 captures the light emitted by the two lasers 4 after passing through the first convex lens 3 to see if they converge to a single point on the mounting plate 5. If they do, it indicates that the mounting plate 5 is now at the focal point of the first convex lens 3. If the light emitted by the two lasers 4 still results in two spots on the mounting plate after passing through the first convex lens 3, the industrial camera transmits a signal to the mobile driver, which drives the mounting plate 5 to move until it reaches the focal point of the first convex lens 3. This automatic adjustment eliminates manual intervention. This solves the current problem of a lack of a device capable of automatically adjusting the positional relationship between the laser diode and the focal point of the first convex lens.

[0025] As a preferred embodiment, the mobile driver includes a servo motor 7, a screw 8, and a nut 9. The screw 8 is rotatably mounted within the transmitter 1. A mounting hole 10 is provided on the transmitter 1 on the side facing the receiver 2. The screw 8 is parallel to the axis of the mounting hole 10. The nut 9 is threadedly connected between the two ends of the screw 8. A flat surface on the nut 9, parallel to the screw 8, is located within the mounting hole 10. A slot 11 is provided axially within the circumferential wall of the mounting hole 10 for the nut 9 to slide along the axis of the mounting hole 10. The nut 9 is fixedly connected to the mounting plate 5 within the mounting hole 10. The industrial camera 6 is connected to the servo motor 7 via a signal. The output shaft of the servo motor 7 is connected to the screw 8. With this arrangement, when the servo motor 7 receives a signal from the industrial camera 6, it drives the screw 8 to rotate. The rotation of the screw 8 causes the nut 9 to slide within the slot 11, thereby driving the movement of the mounting plate 5. Of course, the servo motor 7 is provided with a controller. After receiving the signal from the industrial camera 6, the controller controls the operation of the industrial camera 6.

[0026] As a preferred embodiment, the light source is a laser diode 12 .

[0027] As a preferred embodiment, the distance between the transmitting part 1 and the receiving part 2 is 10 cm.

[0028] As a preferred embodiment, a light sensor 13 is provided at the light source, and the signal of the light sensor 13 is connected to the servo motor 7. After such arrangement, when the mounting plate 5 is adjusted to the focal point of the first convex lens 3, the light sensor 13 senses light and transmits a signal to the servo motor 7, and the servo motor 7 stops working.

[0029] As a preferred embodiment, the receiving portion 2 is provided with a through hole 14, the axis of which is parallel to L. A second convex lens 15 is coaxially disposed within the through hole 14, the connecting line segment between the focal point of the first convex lens 3 and the focal point of the second convex lens 15 being N, which is parallel to L. A CMOS receiver is disposed within the through hole 14 on the side of the second convex lens 15 facing away from the first convex lens 3. The CMOS receiver receives and processes light passing through the second convex lens 15.

[0030] As a preferred embodiment, the device further includes a connecting block 16, one end of which is radially fixedly connected to the transmitter 1; the other end of which is radially fixedly connected to the receiver; and the connecting block 16, the transmitter 1, and the receiver 2 form a U-shape. This arrangement allows the connecting block 16, the transmitter 1, and the receiver 2 to form a single unit, making them easy to handle and carry.

[0031] As a preferred embodiment, a plane mirror 18 is provided in the mounting hole 10. The plane mirror 18 is located on one side of the light source. The industrial camera 6 is located on one side wall of the mounting hole 10. The plane mirror 18 is provided on the other side wall of the mounting hole 10 opposite the side wall where the industrial camera 6 is provided. The image of the mounting plate 10 in the plane mirror 18 can enter the shooting range of the industrial camera 6. With this arrangement, the industrial camera 6 will not block the light emitted by the light source from entering the receiving part 2.

Claims

1. A wide-width deviation correction sensor device, characterized in that: The invention comprises a relatively fixed transmitting part (1) and a receiving part (2), wherein a gap is preset between the transmitting part (1) and the receiving part (2), a first convex lens (3) is provided at the transmitting end of the transmitting part (1), a light source is provided in the transmitting part (1) at the focus of the first convex lens (3) on the side facing away from the receiving part (2), a connecting line segment between the transmitting part (1) and the receiving part (2) is L, at least two lasers (4) are provided on the side of the receiving part (2) facing the transmitting part (1), a gap is preset between any two adjacent lasers (4) on the receiving part (2), the light beams emitted by the two lasers (4) are parallel to the L, and the light beams emitted by the two lasers (4) can pass through the first convex lens (3), a mobile driver is provided in the transmitting part (1), the execution end of the mobile driver is fixed with the light source through the mounting plate (5), the moving direction of the light source driven by the mobile driver is parallel to the L, an industrial camera (6) for photographing the light source is provided in the transmitting part (1), and the signal of the industrial camera (6) is connected to the mobile driver.

2. A wide-width deviation correction sensor device according to claim 1, characterized in that: The mobile driver includes a servo motor (7), a screw rod (8), and a nut (9), wherein the screw rod (8) is rotatably arranged in the transmitting part (1), and a mounting hole (10) is provided on the side of the transmitting part (1) facing the receiving part (2), the screw rod (8) is parallel to the axis of the mounting hole (10), and the nut (9) is threadedly connected between the two ends of the screw rod (8), a plane on the nut (9) parallel to the screw rod (8) is in the mounting hole (10), and a sliding groove (11) for the nut (9) to slide along the axis direction of the mounting hole (10) is provided on the circumferential wall of the mounting hole (10), and the nut (9) is fixedly connected to the mounting plate (5) in the mounting hole (10), the industrial camera (6) is connected to the servo motor (7) by signal, and the output shaft of the servo motor (7) is connected to the screw rod (8) by transmission.

3. A wide-width deviation correction sensor device according to claim 1, characterized in that: The light source is a laser diode (12).

4. A wide-width deviation correction sensor device according to claim 1, characterized in that: The distance between the transmitting part (1) and the receiving part (2) is 10 cm.

5. The wide-width deviation correction sensor device according to claim 2, characterized in that: A photosensor (13) is provided at the light source, and a signal of the photosensor (13) is connected to the servo motor (7).

6. A wide-width deviation correction sensor device according to claim 1, characterized in that: The receiving portion (2) is provided with a through hole (14), the axis of the through hole (14) is parallel to L, a second convex lens (15) is coaxially provided in the through hole (14), a connecting line segment between the focus of the first convex lens (3) and the focus of the second convex lens (15) is N, and N is parallel to L, and a CMOS receiver is provided in the through hole (14) on the side of the second convex lens (15) facing away from the first convex lens (3).

7. The wide-width deviation correction sensor device according to claim 1, characterized in that: It also includes a connecting block (16), one end of which is radially fixedly connected to the transmitting part (1); the other end of which is radially fixedly connected to the receiving part; and a U-shape is formed among the connecting block (16), the transmitting part (1) and the receiving part (2).

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