A laser projection positioning device for prefabricated components

Abstract

This invention discloses a laser projection positioning device for prefabricated components, including a controller, a laser emitter, and a mounting bracket. The mounting bracket includes a base plate, with adjustable feet installed at each of the four corners. A bubble level is mounted on the surface of the base plate. A linear slide is mounted on the front surface of the vertical support platform, and a connecting seat is mounted on the surface of the linear slide. The connecting seat has locking grooves located at its front and bottom ends. A locking plate is slidably embedded inside the locking grooves, and an angle adjustment mechanism is mounted on the surface of the locking plate. The laser emitter is installed inside the angle adjustment mechanism. This invention achieves precise control of the laser beam through a signal connection between the controller and the laser emitter. The electronic bubble level and adjustable feet enable automated leveling of the device, improving the overall operational intelligence level, while ensuring the base plate remains level, thus guaranteeing high-precision laser projection positioning.

Description

Technical Field

[0001] This invention relates to the fields of construction and manufacturing, and in particular to a laser projection positioning device for prefabricated components. Background Technology

[0002] Precise positioning and installation are crucial for ensuring component quality and construction efficiency during the production and installation of precast components. In the production process, laser projection provides precise positioning for cutting, drilling, and other processing, ensuring the accuracy of component dimensions. Automated laser projection positioning reduces the time spent on manual measurement and marking, improving production efficiency. On the construction site, laser projection helps workers accurately install precast components in the correct positions, ensuring the accuracy of the building structure and guaranteeing that the manufacturing and installation quality of precast components meets design requirements, reducing errors and rework. Laser projection can directly project design drawings onto the components, allowing workers to intuitively understand construction requirements and reducing misunderstandings and mistakes.

[0003] In summary, laser projection positioning technology, as an emerging high-precision positioning technology, is increasingly being applied to the production and installation of precast components. Laser projection positioning devices emit laser beams from a laser emitter, forming clear projection lines or points on the surface of the precast component, providing accurate positioning references. Compared to traditional manual layout methods, laser projection positioning technology offers advantages such as high precision, speed, and ease of operation, significantly improving construction efficiency and quality.

[0004] Currently available laser projection positioning devices mainly consist of a single laser emitter and a simple mechanical structure, offering limited functionality and failing to meet the high-precision positioning requirements of complex construction environments. Therefore, this invention provides a laser projection positioning device for prefabricated components to overcome the technical deficiencies of existing technologies. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a laser projection positioning device for prefabricated components.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] This invention provides a laser projection positioning device for prefabricated components, comprising a controller, a laser emitter, and a mounting bracket. The controller is signal-connected to the laser emitter. The mounting bracket includes a base plate, with adjustable feet installed at each of the four corners of the base plate. A bubble level is installed on the surface of the base plate. Support plates are installed on both sides of the top surface of the base plate. An auxiliary sliding rod is fixedly connected between the support plates. A lead screw is provided at the bottom of the auxiliary sliding rod. A first servo motor is provided on the outer side of one of the support plates, and the first servo motor is drively connected to the lead screw. A sliding seat is threaded onto the outer periphery of the lead screw, and a flat plate is slidably sleeved onto the outer periphery of the auxiliary sliding rod. The sliding plate has a sliding seat fixedly connected to its bottom end. A vertical support platform is installed at the top of the sliding plate. A linear slide is installed on the front surface of the vertical support platform. A second servo motor is installed at the top of the linear slide. A connecting seat is installed on the surface of the linear slide. The surface of the connecting seat has two locking slots, located at the front and bottom ends of the connecting seat respectively. A locking plate is slidably embedded inside the locking slot. An angle adjustment mechanism is installed on the surface of the locking plate. The horizontal orientation of the angle adjustment mechanism is changed by engaging the locking plate with the locking slots at different positions. A laser emitter is installed inside the angle adjustment mechanism.

[0008] As a preferred embodiment of the present invention, bearings are provided at the points where the lead screw passes through the support plate, and there are two auxiliary sliding rods, which are distributed in an inverted triangular shape with the lead screw.

[0009] As a preferred embodiment of the present invention, the angle adjustment mechanism includes two arched frames, an electric telescopic rod, and an L-shaped plate. The arched frames are fixedly connected to the surface of the snap-fit ​​plate, and the other end of the arched frames is fixedly connected to the L-shaped plate. Multiple fixed crossbars connect the L-shaped plates to form a single unit. Each L-shaped plate includes a bottom plate and a vertical plate, with the vertical plate being higher than the bottom plate. The bottom plate of the L-shaped plate has an arc-shaped groove that is higher in the front and lower in the back. A synchronous moving head is slidably fitted inside the arc-shaped groove. The outer side of the synchronous moving head is hinged to the electric telescopic rod, and the other end of the electric telescopic rod is hinged to the snap-fit ​​plate. A Z-shaped folding plate is hinged to the inner side of the synchronous moving head. The other end of the Z-shaped folding plate is hinged to the top of the vertical plate of the L-shaped plate, and a transmission rod is hinged to it. The inner end of the Z-shaped folding plate is hinged to the midpoint of the top of the outer side of the laser emitter, and the inner end of the synchronous moving head is hinged to the bottom of the rear end of the laser emitter. The angle of the laser emitter is adjusted by pushing the Z-shaped folding plate through the electric telescopic rod.

[0010] As a preferred embodiment of the present invention, a position sensor is provided on the top surface of the laser emitter. The position sensor is a non-contact photoelectric sensor, and the position sensor is connected to the laser emitter via an optical fiber.

[0011] As a preferred embodiment of the present invention, the controller has a built-in high-performance processor and a large-capacity memory. The controller receives signals from the position sensor and controls the first servo motor, the linear slide, and the second servo motor. The controller also includes a wireless communication module, which can transmit data and remotely control external devices through a wireless network to achieve remote monitoring and operation.

[0012] As a preferred embodiment of the present invention, a temperature and humidity sensor and a light sensor are also installed on the top surface of the base plate. The sensors transmit the monitored environmental data to the controller, and the controller automatically adjusts the operating parameters of the laser emitter based on the received environmental data.

[0013] As a preferred embodiment of the present invention, both the bubble level and the adjustable foot support are electronic. The bubble level converts the horizontal state into an electrical signal and transmits it to the controller. The controller automatically adjusts the height of the adjustable foot support according to the received horizontal signal.

[0014] As a preferred embodiment of the present invention, a cap is fitted at the inlet of the snap-fit ​​groove, and matching concave and convex positioning points are provided on the inner side of the snap-fit ​​groove and the outer side of the cap.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. This invention enables precise control of the laser beam through signal connection between the controller and the laser emitter. The electronic bubble level and adjustable foot support realize the automatic leveling of the device, improving the overall intelligence level of operation, while ensuring that the base plate always remains level, thereby ensuring high-precision positioning of the laser projection.

[0017] 2: This invention is equipped with temperature and humidity sensors and light sensors to monitor the surrounding environment in real time. According to changes in the environment, the device can automatically adjust its working parameters to adapt to different environmental conditions and maintain the clarity and stability of the laser projection.

[0018] 3: The angle adjustment mechanism of the present invention includes two arched frames, an electric telescopic rod, an L-shaped plate and other components. By pushing the Z-shaped folding plate with the electric telescopic rod, the laser emitter can be adjusted in multiple angles and directions to adapt to different construction needs.

[0019] 4. The laser emitter of the present invention is equipped with a position sensor, which adopts a non-contact photoelectric sensor and can maintain stable detection accuracy under different ambient temperatures. The position sensor and the laser emitter are connected by optical fiber. The optical fiber can not only transmit signals, but also isolate interference, ensuring that the actual position of the laser beam can be accurately detected even in an environment with strong electromagnetic interference, thus achieving high-precision positioning.

[0020] 5. The controller of the present invention also includes a wireless communication module, which can transmit data and remotely control external devices through a wireless network, realize remote monitoring and operation, and improve the intelligence level and ease of operation of the device.

[0021] 6: The inlet of the snap-fit ​​groove of the present invention is fitted with a cap, and the inner side and the outer side of the cap are provided with matching concave and convex positioning points to ensure that the connection between the snap-fit ​​plate and the snap-fit ​​groove is stable and reliable. By adjusting the snap-fit ​​plate to snap-fit ​​grooves at different positions, the horizontal orientation of the laser emitter can be flexibly changed to adapt to different construction scenarios and needs. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a partial schematic diagram of the angle adjustment mechanism of the present invention;

[0025] Figure 3 This is a schematic diagram of the connector structure of the present invention;

[0026] Figure 4 This is a side view of the angle adjustment mechanism and laser emitter part of the present invention;

[0027] Figure 5 This is an installation diagram of the laser emitter when the prefabricated component is located directly in front in the embodiment;

[0028] Figure 6 This is an installation diagram of the laser emitter when the prefabricated component is located directly below in the embodiment;

[0029] In the diagram: 1. Controller; 2. Laser emitter; 3. Base plate; 4. Adjustable foot support; 5. Bubble level; 6. Support plate; 7. Auxiliary sliding rod; 9. Lead screw; 10. First servo motor; 11. Sliding seat; 12. Translation plate; 13. Vertical support platform; 14. Linear slide table; 15. Connecting seat; 16. Snap-fit ​​groove; 17. Angle adjustment mechanism; 18. Snap-fit ​​plate; 19. Second servo motor; 20. Position sensor; 21. Temperature and humidity sensor; 22. Light sensor; 171. Arch frame; 172. Electric telescopic rod; 173. L-shaped plate; 174. Arc groove; 175. Synchronous moving head; 176. Z-shaped folding plate; 177. Transmission rod; 161. Cap. Detailed Implementation

[0030] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0031] Example 1

[0032] like Figure 1-6 As shown, the present invention provides a laser projection positioning device for prefabricated components, including a controller 1, a laser emitter 2, and a mounting bracket. The controller 1 is signal-connected to the laser emitter 2. The mounting bracket includes a base plate 3, with adjustable foot supports 4 installed at each of the four corners of the base plate 3. A bubble level 5 is installed on the surface of the base plate 3. Support plates 6 are installed on both sides of the top surface of the base plate 3. An auxiliary sliding rod 7 is fixedly connected between the support plates 6. A lead screw 9 is provided at the bottom of the auxiliary sliding rod 7. A first servo motor 10 is provided on the outer side of one of the support plates 6. The first servo motor 10 is connected to the lead screw 9. A sliding seat 11 is threaded onto the outer periphery of the lead screw 9. A translation plate 12 is slidably sleeved onto the outer periphery of the auxiliary sliding rod 7. The bottom end of the translation plate 12 is fixedly connected to the translation plate 12. A vertical support platform 13 is installed on the top end of the translation plate 12. A linear slide 14 is installed on the front surface of the vertical support platform 13. A second servo motor 19 is installed on the top end of the linear slide 14. A connecting seat 15 is installed on the slide surface of the linear slide 14. The surface of the connecting seat 15 has two locking slots 16, which are located at the front end and the bottom end of the connecting seat 15 respectively. A locking plate 18 is slidably embedded inside the locking slot 16. An angle adjustment mechanism 17 is installed on the surface of the locking plate 18. The horizontal orientation of the angle adjustment mechanism 17 is changed by locking the locking plate 18 with the locking slots 16 at different positions. A laser emitter 2 is installed inside the angle adjustment mechanism 17.

[0033] Furthermore, bearings are installed at each point where the lead screw 9 passes through the support plate 6, and there are two auxiliary sliding rods 7, which are distributed in an inverted triangle shape with the lead screw 9 to improve the stability and accuracy of the device.

[0034] Furthermore, the angle adjustment mechanism 17 includes two arched frames 171, an electric telescopic rod 172, and an L-shaped plate 173. The arched frames 171 are fixedly connected to the surface of the snap-fit ​​plate 18, and the other end of the arched frames 171 is fixedly connected to the L-shaped plate 173. Multiple fixed crossbars connect the L-shaped plates 173 to form a single unit. The L-shaped plate 173 includes a bottom plate and a vertical plate, with the vertical plate being higher than the bottom plate. The bottom plate of the L-shaped plate 173 has an arc-shaped groove 174 that is higher in the front and lower in the back. A synchronous moving head 175 is slidably sleeved inside the arc-shaped groove 174, and the outer side of the synchronous moving head 175 is connected to... The electric telescopic rod 172 is hinged to one end, and the other end of the electric telescopic rod 172 is hinged to the snap-fit ​​plate 18. The inner side of the synchronous moving head 175 is hinged to a Z-shaped folding plate 176. The other end of the Z-shaped folding plate 176 is hinged to the top of the vertical plate of the L-shaped plate 173, and a transmission rod 177 is hinged to it. The inner end of the Z-shaped folding plate 176 is hinged to the middle point of the top of the outer side of the laser emitter 2. The inner end of the synchronous moving head 175 is hinged to the bottom of the rear end of the laser emitter 2. The angle of the laser emitter 2 is adjusted by pushing the Z-shaped folding plate 176 through the electric telescopic rod 172, so as to realize multi-angle and multi-directional laser projection.

[0035] Furthermore, a position sensor 20 is provided on the top surface of the laser emitter 2. The position sensor 20 is a non-contact photoelectric sensor. The non-contact photoelectric sensor has an automatic temperature compensation function, which can maintain stable detection accuracy under different ambient temperatures. The position sensor 20 is connected to the laser emitter 2 through an optical fiber. The optical fiber can not only transmit signals, but also isolate interference, ensuring that even in an environment with strong electromagnetic interference, the position sensor 20 can accurately detect the actual position of the laser beam, thereby achieving high-precision positioning of the laser projection on the prefabricated component.

[0036] Furthermore, the controller 1 has a built-in high-performance processor and a large-capacity memory. The controller 1 receives signals from the position sensor 20 and controls the first servo motor 10, the linear slide 14, and the second servo motor 19. The servo motors are precisely driven according to the instructions issued by the control unit 4. It also has an overload protection program that can automatically stop when encountering excessive external resistance to avoid damaging the equipment and ensure the accuracy and safety of the laser beam position adjustment. The controller 1 also includes a wireless communication module, which can transmit data and remotely control external devices through a wireless network to achieve remote monitoring and operation.

[0037] The processor runs complex algorithms, including temperature compensation, position calibration, and servo motor control algorithms, to ensure precise control of the laser emitter 2. The memory also records operation logs and device status for easy maintenance and troubleshooting. The wireless communication module supports Wi-Fi, Bluetooth, or cellular network connectivity, enabling the controller to transmit data and communicate with external devices such as smartphones, tablets, or computers. Users can remotely input projection parameters, start or stop the device, and adjust the operating status of the laser emitter 2, achieving remote control and operation. They can also monitor the device's operating status in real time, receive alarm notifications and maintenance prompts, improving operational convenience and equipment management efficiency.

[0038] Furthermore, a cap 161 is fitted into the inlet of the snap-fit ​​groove 16, and matching concave and convex positioning points are provided on the inner side of the snap-fit ​​groove 16 and the outer side of the cap 161.

[0039] Specifically, first, the laser projection positioning device is placed in the working area of ​​the precast component, and the height of the adjustable foot support 4 is adjusted to adapt to the unevenness of different precast component surfaces to ensure that the base plate 3 is level. The bubble level 5 is then used to further confirm the levelness of the base plate 3.

[0040] Connect the laser emitter 2 to the connector 15, align the snap-fit ​​plate 18 with the inlet of the snap-fit ​​groove 16, and gently insert it into the snap-fit ​​groove. The snap-fit ​​plate 18 slides into the interior of the snap-fit ​​groove 16, ensuring a tight fit between the snap-fit ​​plate and the snap-fit ​​groove. After inserting the snap-fit ​​plate 18, insert the cap 161 into the inlet of the snap-fit ​​groove 16. The cap 161 fits tightly with the inner side of the snap-fit ​​groove 16 through the concave and convex positioning points, ensuring that the snap-fit ​​plate 18 is fixed in the snap-fit ​​groove and will not loosen or fall off. If the prefabricated component is located directly in front, this state is usually during the installation of the prefabricated component. At this time, the connection state is as follows. Figure 5 As shown; if the precast component is located directly below, this state is usually during the precast component production process, and the connection state is as follows. Figure 6 As shown.

[0041] Connect controller 1 to laser emitter 2 and ensure all electrical connections are normal. Start controller 1 and input preset projection parameters, including laser beam direction, intensity, and projection position, through the control panel of controller 1. Laser emitter 2 starts working, emitting a laser beam to form projection lines or points on the surface of the precast component. Use the first servo motor 10 and the second servo motor 19 to adjust the horizontal and vertical positions of laser emitter 2 to ensure accurate projection position.

[0042] The horizontal position adjustment process is as follows: the first servo motor 10 is connected to the lead screw 9 for transmission. By rotating the lead screw, the sliding seat 11 is driven to move horizontally along the auxiliary sliding rod 7. The sliding seat 11 is fixedly connected to the translation plate 12. The translation plate 12 drives the vertical support platform 13 and the laser emitter 2 to move together, thereby realizing the horizontal position adjustment of the laser emitter.

[0043] The vertical position adjustment process is as follows: The second servo motor 19 is mounted on the top of the linear slide 14. By driving the sliding mechanism of the linear slide, the vertical position of the connecting seat 15 and the laser emitter 2 is adjusted. The controller 1 precisely controls the movement of the second servo motor 19 according to the real-time feedback signal to ensure the precise positioning of the laser emitter in the vertical direction.

[0044] The position of the laser emitter 2 is then detected and adjusted in real time. The sensor 20 emits a light signal, which is reflected or interrupted when the laser emitter 2 is operating. The position sensor 20 receives the reflected or interrupted light signal and converts it into an electrical signal. Changes in the intensity, phase, or frequency of the light signal reflect the actual position of the laser beam. A photodetector inside the position sensor 20, such as a photodiode or phototransistor, converts the received light signal into an electrical signal. This electrical signal is amplified and filtered to remove noise and interference, resulting in a stable position signal. An optical fiber serves as the transmission medium, transmitting the light signal detected by the position sensor 20 to the controller 1. Upon receiving the light signal transmitted through the optical fiber, the controller 1 uses its internal photoelectric conversion module to convert the light signal back into an electrical signal. The controller 1 further processes and analyzes the electrical signal to obtain precise position data of the laser beam. Based on preset calibration parameters and feedback from the position sensor 20, the controller 1 automatically adjusts the direction and intensity of the laser emitter 2.

[0045] The direction adjustment process of laser emitter 2 is as follows: When controller 1 sends a command, electric telescopic rod 172 extends and retracts, driving synchronous moving head 175 to slide in arc groove 174. The extension and retraction of electric telescopic rod 172 is transmitted to Z-shaped folding plate 176 through synchronous moving head 175, changing the angle of Z-shaped folding plate. Through the extension and retraction of electric telescopic rod 172, Z-shaped folding plate 176 drives laser emitter 2 to adjust its angle in multiple directions, realizing multi-angle and multi-directional laser projection to adapt to different construction needs.

[0046] Example 2

[0047] like Figure 1-6 As shown, the present invention provides a laser projection positioning device for prefabricated components. Based on embodiment 1, a temperature and humidity sensor 21 and a light sensor 22 are also installed on the top surface of the base plate 3. The sensors transmit the monitored environmental data to the controller 1. The controller 1 automatically adjusts the operating parameters of the laser emitter 2 according to the received environmental data.

[0048] Specifically, in environments with large changes in light intensity, controller 1 will adjust the intensity of the laser beam from laser emitter 2 to ensure clear projection; in environments with large changes in temperature, temperature compensation will be performed to maintain the stability of laser emitter 2.

[0049] The temperature compensation method is as follows: Temperature and humidity sensor 21 monitors the ambient temperature in real time and transmits the temperature data to controller 1. Controller 1 receives and records the current ambient temperature data. Controller 1 has a built-in temperature compensation algorithm based on a preset temperature-current relationship curve (lookup table method). The bias current values ​​required by laser emitter 2 at different temperatures are pre-stored in the memory of controller 1. When the temperature changes, the controller looks up the corresponding bias current value from the lookup table according to the current temperature; controller 1 adjusts the bias current (Ibias) of laser emitter 2 according to the data in the lookup table. When the ambient temperature rises, the threshold current (Ith) of laser emitter increases, and the controller increases the bias current to maintain the stable output optical power of laser emitter. When the ambient temperature decreases, the threshold current (Ith) of laser emitter decreases, and the controller decreases the bias current to prevent over-driving of laser emitter. The backlight detection detector (PD) inside laser emitter 2 monitors the laser output optical power in real time and transmits the feedback signal to controller 1. Controller 1 further fine-tunes the bias current according to the feedback signal from the backlight detection detector to ensure that the output optical power of laser emitter remains stable at different temperatures. After activating the temperature compensation function, controller 1 continuously monitors the ambient temperature and the output optical power of the laser emitter. Based on temperature changes and feedback signals, the controller adjusts the bias current of the laser emitter in real time to ensure the stability of the laser beam's intensity and direction, thus maintaining projection accuracy.

[0050] Example 3

[0051] like Figure 1-6 As shown, the present invention provides a laser projection positioning device for prefabricated components. Based on embodiment 1, both the bubble level 5 and the adjustable foot support 4 are electronic. The bubble level 5 converts the horizontal state into an electrical signal and transmits it to the controller 1. The controller 1 automatically adjusts the height of the adjustable foot support 4 according to the received horizontal signal to ensure that the laser emitter 2 always remains in a horizontal state.

[0052] Specifically, the electronic bubble level 5 has a built-in high-precision sensor that can detect the tilt angle of the level. When the base plate 3 tilts, the sensor detects the change in tilt angle, converts the detected tilt angle into an electrical signal, and transmits it to the controller 1. The electronic bubble level uses a capacitive or inductive principle, measuring the tilt angle through the voltage change of a pendulum or induction coil. The controller 1 receives the electrical signal from the electronic bubble level 5, analyzes the current tilt angle, and calculates the height difference that needs to be adjusted according to preset leveling parameters to restore the base plate 3 to a level state. The adjustable foot support 4 is equipped with an electric actuator (such as a stepper motor or servo motor, not shown in the figure), which can precisely adjust the height according to the controller's instructions. The controller 1 sends adjustment instructions to the adjustable foot support 4, and the electric actuator adjusts the height of the foot support according to the instructions. The adjustment process includes raising or lowering the foot support to eliminate the tilt angle and restore the base plate 3 to a level state. The electronic bubble level 5 continuously monitors the leveling status of the base plate 3 and transmits real-time data to the controller 1. The controller 1 dynamically adjusts the height of the adjustable foot support 4 based on real-time data to ensure that the laser emitter 2 always remains horizontal, achieving high-precision laser projection positioning, which is more convenient and accurate than manual adjustment.

[0053] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser projection positioning device for prefabricated components, characterized in that, The system includes a controller (1), a laser emitter (2), and a mounting bracket. The controller (1) is signal-connected to the laser emitter (2). The mounting bracket includes a base plate (3), with adjustable foot supports (4) installed at each of the four corners of the base plate (3). A bubble level (5) is installed on the surface of the base plate (3). Support plates (6) are installed on both sides of the top surface of the base plate (3). An auxiliary sliding rod (7) is fixedly connected between the support plates (6). A lead screw (9) is provided at the bottom of the auxiliary sliding rod (7). A first servo motor (10) is provided on the outer side of one of the support plates (6). The first servo motor (10) is connected to the lead screw (9) in a transmission connection. A sliding seat (11) is threaded onto the outer circumference of the lead screw (9). A translation plate (12) is slidably sleeved onto the outer circumference of the auxiliary sliding rod (7). The sliding seat (11) and the translation plate (12) are connected in a transmission connection. The bottom end is fixedly connected, and a vertical support platform (13) is installed at the top of the translation plate (12). A linear slide (14) is installed on the front surface of the vertical support platform (13). A second servo motor (19) is installed at the top of the linear slide (14). A connecting seat (15) is installed on the slide surface of the linear slide (14). A snap-fit ​​groove (16) is opened on the surface of the connecting seat (15). There are two snap-fit ​​grooves (16), which are located at the front and bottom ends of the connecting seat (15) respectively. A snap-fit ​​plate (18) is slidably embedded inside the snap-fit ​​groove (16). An angle adjustment mechanism (17) is installed on the surface of the snap-fit ​​plate (18). The horizontal orientation of the angle adjustment mechanism (17) is changed by snapping the snap-fit ​​plate (18) with the snap-fit ​​groove (16) at different positions. A laser emitter (2) is installed inside the angle adjustment mechanism (17). The angle adjustment mechanism (17) includes two arched frames (171), an electric telescopic rod (172), and an L-shaped plate (173). The arched frames (171) are fixedly connected to the surface of the snap-fit ​​plate (18), and the other end of the arched frames (171) is fixedly connected to the L-shaped plate (173). Multiple fixed crossbars connect the L-shaped plates (173) to form a whole. The L-shaped plate (173) includes a bottom plate and a vertical plate, with the vertical plate being higher than the bottom plate. The bottom plate of the L-shaped plate (173) has an arc-shaped groove (174) that is higher in the front and lower in the back. A synchronous moving head (175) is slidably sleeved inside the arc-shaped groove (174). The outer side of the synchronous moving head (175) is hinged to the electric telescopic rod (172), the other end of the electric telescopic rod (172) is hinged to the snap plate (18), the inner side of the synchronous moving head (175) is hinged to the Z-shaped folding plate (176), the other end of the Z-shaped folding plate (176) is hinged to the top of the vertical plate of the L-shaped plate (173) and a transmission rod (177) is hinged to it, the inner end of the Z-shaped folding plate (176) is hinged to the middle point of the top of the outer side of the laser emitter (2), and the inner end of the synchronous moving head (175) is hinged to the bottom of the rear end of the laser emitter (2). The angle of the laser emitter (2) is adjusted by pushing the Z-shaped folding plate (176) through the electric telescopic rod (172).

2. The laser projection positioning device for prefabricated components according to claim 1, characterized in that, Bearings are provided at the points where the lead screw (9) passes through the support plate (6). There are two auxiliary sliding rods (7), which are distributed in an inverted triangle shape with the lead screw (9).

3. The laser projection positioning device for prefabricated components according to claim 1, characterized in that, A position sensor (20) is provided on the top surface of the laser emitter (2). The position sensor (20) is a non-contact photoelectric sensor. The position sensor (20) is connected to the laser emitter (2) via an optical fiber.

4. The laser projection positioning device for prefabricated components according to claim 3, characterized in that, The controller (1) has a built-in high-performance processor and a large-capacity memory. The controller (1) receives signals from the position sensor (20) and controls the first servo motor (10), the linear slide (14), and the second servo motor (19). The controller (1) also includes a wireless communication module, which can transmit data and remotely control external devices through a wireless network to realize remote monitoring and operation.

5. The laser projection positioning device for prefabricated components according to claim 4, characterized in that, The top surface of the base plate (3) is also equipped with a temperature and humidity sensor (21) and a light sensor (22). The sensors transmit the monitored environmental data to the controller (1). The controller (1) automatically adjusts the working parameters of the laser emitter (2) according to the received environmental data.

6. The laser projection positioning device for prefabricated components according to claim 5, characterized in that, Both the bubble level (5) and the adjustable foot support (4) are electronic. The bubble level (5) converts the horizontal state into an electrical signal and transmits it to the controller (1). The controller (1) automatically adjusts the height of the adjustable foot support (4) according to the received horizontal signal.

7. The laser projection positioning device for prefabricated components according to claim 1, characterized in that, A cap (161) is fitted at the inlet of the snap-fit ​​groove (16), and matching concave and convex positioning points are provided on the inner side of the snap-fit ​​groove (16) and the outer side of the cap (161).

Images