Metal plate automatic centering device based on laser sensor

Abstract

The invention discloses an automatic metal plate centering device based on a laser sensor, and relates to the field of metal plate centering, the automatic metal plate centering device comprises a base plate and a supporting frame, a centering mechanism is fixedly installed on the upper surface of the base plate, the centering mechanism comprises a positioning frame and a bearing plate, and a connecting plate is fixedly connected to the lower surface of the bearing plate; conical convex teeth are installed on the lower surface of the connecting plate, and a first positioning block and a second positioning block are fixedly installed on the upper surface of the positioning frame. The first connecting gear can push the connecting plate to move transversely, the second connecting gear can push the connecting plate to move longitudinally, and the position of the connecting plate is continuously adjusted, so that the bearing plate can be finally and rapidly centered; the laser sensor main body is arranged on the bearing plate, the detection modules used for being matched with the laser sensor main body for use are arranged at the four corners of the bearing plate, in the centering process, the whole device conducts centering with the position of the laser sensor main body as the center, and therefore the effect of increasing the centering speed is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal plate centering, and in particular to an automatic metal plate centering device based on a laser sensor. Background Art

[0002] The automatic centering device for metal sheets is a device used to accurately position sheets in the field of metal sheet processing, which can significantly improve processing accuracy and efficiency.

[0003] However, in the existing technology, in the metal sheet processing industry, such as stamping, cutting, welding and other process links, the precise centering of metal sheets is crucial. Traditional centering methods mostly rely on manual operation or simple mechanical positioning devices. Manual operation is not only inefficient, but the centering accuracy is greatly affected by the operator's skills and working conditions, making it difficult to meet the needs of high-precision processing. Simple mechanical positioning devices have poor adaptability. For plates of different sizes and shapes, positioning components often need to be frequently replaced. The adjustment process is cumbersome, which seriously restricts the improvement of production efficiency. With the continuous improvement of the manufacturing industry's requirements for production accuracy and efficiency, the existing centering technology can no longer meet the development needs of the industry. For example, in the production of automotive parts, the centering accuracy of metal sheets directly affects the dimensional accuracy and quality stability of the parts, and thus affects the overall performance and safety of the car. Therefore, it is of great practical significance to develop a high-precision, high-efficiency, and highly adaptable automatic centering device for metal sheets. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic centering device for metal plates based on laser sensors to solve the problems of low efficiency, poor accuracy and insufficient adaptability of metal plate centering proposed in the above-mentioned background technology. By adopting laser sensors and automatic control structures, metal plates can be quickly and accurately centered, production efficiency and processing quality can be improved, and the adaptability of the device to plates of different specifications can be enhanced.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a metal sheet automatic centering device based on a laser sensor, comprising a base plate and a support frame, a centering mechanism fixedly installed on the upper surface of the base plate, the centering mechanism comprising a positioning frame and a carrying plate, a connecting plate fixedly connected to the lower surface of the carrying plate, a conical convex tooth installed on the lower surface of the connecting plate, a first positioning block and a second positioning block fixedly installed on the upper surface of the positioning frame, a first servo motor fixedly installed on one side of the first positioning block, a second servo motor fixedly installed on one side of the second positioning block, the first servo motor and the second servo motor being perpendicular to each other, a first connecting gear and a second connecting gear fixedly installed on the output end of the first servo motor and the output end of the second servo motor respectively, the first connecting gear and the second connecting gear are both meshed with the connecting plate, a longitudinal guide rail fixedly installed on the top of the support frame, a transverse guide rail slidably connected to the top of the longitudinal guide rail, a movable platform is provided on one side of the transverse guide rail, a laser sensor body is fixedly installed on the outer wall of the movable platform, and detection modules are fixedly installed at the four corners of the carrying plate.

[0006] Preferably, a first limiting sleeve is fixedly installed on the upper surface of the connecting plate, a connecting rod is fixedly installed inside the first limiting sleeve, and the connecting rod is perpendicular to the positioning frame.

[0007] Preferably, a second limiting sleeve is sleeved on the outer wall of the positioning frame, a through hole is provided at the end of the second limiting sleeve, and the second limiting sleeve is fixedly connected to the connecting rod through the through hole.

[0008] Preferably, a rectangular frame is sleeved on the outer wall of the transverse guide rail, a vertical plate is fixedly connected to one side of the rectangular frame, and the vertical plate is slidably connected to the movable platform.

[0009] Preferably, an electric cylinder is fixedly installed at the edge of the vertical plate, one end of the electric cylinder piston rod is fixedly connected to the movable platform, a first motor is fixedly installed on the top of the movable platform, and the output end of the first motor is fixedly connected to the threaded rod.

[0010] Preferably, one end of the threaded rod is threadedly connected to a movable end head, the inner side of the movable end head is rotatably connected to a processing block, and the movable end head is located at the bottom of the movable platform.

[0011] Preferably, an extension plate is fixedly mounted on one side of the movable end head, and a second motor is fixedly mounted on one side of the extension plate. The output end of the second motor is fixedly connected to a turntable, and the turntable is detachably connected to the processing block.

[0012] Preferably, a third servo motor is fixedly mounted on the top of the rectangular frame, and an output end of the third servo motor is meshedly connected to a gear rod on the upper surface of the transverse guide rail.

[0013] Preferably, a centering system is used, which includes a data acquisition module, a mechanical motion control module and a data processing and control module. The data acquisition module consists of a laser sensor body and a detection module at the corner of the supporting plate. The laser sensor body is installed on a movable table, and is used to emit a laser beam and receive reflected light, so as to obtain distance information from the surface of the plate, and then infer the position of the plate. The mechanical motion control module is used to control the centering mechanism, longitudinal guide rail, transverse guide rail, electric cylinder, first motor, second motor and third servo motor to complete the centering of the plate. The data processing and control module is used to receive data collected by the laser sensor body, calculate the position deviation of the plate, generate control instructions according to a preset algorithm, and send them to each motor and electric cylinder of the mechanical motion control module.

[0014] Preferably, the centering mechanism of the mechanical motion control module drives the first connecting gear and the second connecting gear respectively through the first servo motor and the second servo motor, driving the connecting plate and the supporting plate to realize lateral and longitudinal movement, completing the centering of the plate. The longitudinal guide rail and the transverse guide rail cooperate to enable the movable table and the laser sensor body to move in a two-dimensional plane to meet the detection requirements of plates of different sizes. The electric cylinder is used to adjust the vertical height of the movable table to adapt to plates of different thicknesses. The first motor, the second motor and the third servo motor respectively realize fine-tuning of the height of the movable end head, rotation of the processing block and longitudinal movement of the transverse guide rail.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a first servo motor and a second servo motor are provided to respectively drive the first connecting gear and the second connecting gear, wherein the first connecting gear can push the connecting plate to move horizontally, and the second connecting gear can push the connecting plate to move longitudinally. By continuously adjusting the position of the connecting plate, the supporting plate can eventually be quickly centered, and detection modules for use with the laser sensor body are provided at the four corners of the supporting plate. During the centering process, the entire device will be centered with the position of the laser sensor body as the center, thereby accelerating the centering speed.

[0016] 2. In the present invention, the first motor is started by the controller, and the first motor drives the threaded rod to rotate, so that the movable end drives the processing block to perform fine adjustments in the vertical direction, ensuring that the relative position of the cutting tool and the plate is accurate. During the cutting process, if the cutting angle needs to be adjusted, the second motor is started, and the second motor drives the turntable to rotate, driving the cutting tool to rotate to the appropriate angle to complete the processing requirements of cutting at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a metal plate automatic centering device based on a laser sensor according to the present invention; Figure 2This is a front view of a metal plate automatic centering device based on a laser sensor according to the present invention; Figure 3 This is a side view of a metal plate automatic centering device based on a laser sensor according to the present invention; Figure 4 This is a schematic diagram of the disassembled structure of the support plate and positioning frame of a metal plate automatic centering device based on a laser sensor of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the transverse guide rail and the longitudinal guide rail of the metal plate automatic centering device based on the laser sensor of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of a movable platform of a metal plate automatic centering device based on a laser sensor according to the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the structure of part A; Figure 8 This is a schematic diagram of a control system for a metal plate automatic centering device based on a laser sensor of the present invention.

[0018] In the figure: 1. Base plate; 2. Centering mechanism; 3. Support frame; 4. Longitudinal guide rail; 5. Transverse guide rail; 6. Movable table; 7. Laser sensor body; 8. Processing block; 9. Third servo motor; 10. Rectangular frame; 11. Vertical plate; 12. First motor; 13. Threaded rod; 14. Movable end; 15. Turntable; 16. Electric cylinder; 17. Second motor; 21. Positioning frame; 22. Carrying plate; 23. First positioning block; 24. Second positioning block; 25. Second servo motor; 26. Second connecting gear; 27. Connecting plate; 28. First servo motor; 29. ​​First connecting gear; 210. First limiting sleeve; 211. Connecting rod; 212. Second limiting sleeve; 213. Through hole. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] Example 1: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown: A metal sheet automatic centering device based on a laser sensor includes a base plate 1 and a support frame 3. A centering mechanism 2 is fixedly installed on the upper surface of the base plate 1. The centering mechanism 2 includes a positioning frame 21 and a supporting plate 22. A connecting plate 27 is fixedly connected to the lower surface of the supporting plate 22. A conical convex tooth is installed on the lower surface of the connecting plate 27. A first positioning block 23 and a second positioning block 24 are fixedly installed on the upper surface of the positioning frame 21. A first servo motor 28 is fixedly installed on one side of the first positioning block 23. A second servo motor 25 is fixedly installed on one side of the second positioning block 24. The first servo motor 28 is perpendicular to the second servo motor 25. The output ends of the first servo motor 28 and the second servo motor 25 are fixedly installed with a first connecting gear 29 and a second connecting gear 26, respectively. The first connecting gear 29 and the second connecting gear 26 are both engaged with the connecting plate 27. A longitudinal guide rail 4 is fixedly installed on the top of the support frame 3, and a transverse guide rail 5 is slidably connected to the top of the longitudinal guide rail 4. A movable platform 6 is provided on one side of the transverse guide rail 5. A laser sensor body 7 is fixedly installed on the outer wall of the movable platform 6. Detection modules are fixedly installed at the four corners of the bearing plate 22. A first limiting sleeve 210 is fixedly installed on the upper surface of the connecting plate 27. A connecting rod 211 is fixedly installed inside the first limiting sleeve 210. The connecting rod 211 is perpendicular to the positioning frame 21. A second limiting sleeve 212 is sleeved on the outer wall of the positioning frame 21. A through hole 213 is opened at the end of the second limiting sleeve 212. The second limiting sleeve 212 is fixedly connected to the connecting rod 211 through the opened through hole 213.

[0021] In this embodiment, the basic structure of the automatic centering device is composed of a base plate 1 and a support frame 3. The base plate 1 serves as the bottom support platform of the entire device, providing a stable installation foundation for the centering mechanism 2 to ensure the stability of the entire device during the centering process. The support frame 3 is located above the base plate 1, and the longitudinal guide rail 4 and the transverse guide rail 5 fixedly installed on its top form a two-dimensional motion track system. The longitudinal guide rail 4 and the transverse guide rail 5 adopt high-precision linear guide rails with the characteristics of low friction, high rigidity and high precision, which can ensure that the movable table 6 moves smoothly and accurately thereon. The centering mechanism 2 is the core component for realizing the centering of metal plates and is installed on the upper surface of the base plate 1. It is mainly composed of a positioning frame 21 and a supporting plate 22. The supporting plate 22 is used to place the material to be centered. The metal plate, the connecting plate 27 fixedly connected to its lower surface plays a key transmission role, the conical convex teeth installed on the lower surface of the connecting plate 27 are tightly meshed with the first connecting gear 29 and the second connecting gear 26. This special tooth design can effectively increase the friction and transmission efficiency between the gear and the connecting plate, ensuring stable power transmission during the centering process. The upper surface of the positioning frame 21 is provided with a first positioning block 23 and a second positioning block 24, which are respectively used to install the first servo motor 28 and the second servo motor 25. The first servo motor 28 and the second servo motor 25 are installed perpendicular to each other. This layout enables them to control the horizontal and vertical movement of the plate respectively. The output end of the first servo motor 28 is fixed with the first connecting gear 29 , and the second connecting gear 26 fixedly installed at the output end of the second servo motor 25 are all meshed and connected with the connecting plate 27. When the first servo motor 28 or the second servo motor 25 is started, the connecting plate 27 is driven to move in the corresponding direction through gear transmission, thereby realizing the position adjustment of the carrying plate 22 and the plate. In order to further improve the stability and accuracy of the movement of the connecting plate 27, a first limiting sleeve 210 is fixedly installed on the upper surface of the connecting plate 27, and the connecting rod 211 installed inside is perpendicular to the positioning frame 21. At the same time, a second limiting sleeve 212 is sleeved on the outer wall of the positioning frame 21, and the through hole 213 opened at its end is fixedly connected to the connecting rod 211. The first limiting sleeve 210, the connecting rod 211 and the second limiting sleeve 212 together constitute A stable limiting guide system. When the connecting plate 27 moves laterally, the second limiting sleeve 212 moves laterally along the direction of the positioning frame 21 to limit the lateral deviation of the connecting plate 27; when it moves longitudinally, the first limiting sleeve 210 moves along the direction of the connecting rod 211 to ensure the accuracy of the longitudinal movement of the connecting plate 27. This double limiting structure greatly improves the stability and reliability of the centering process, effectively avoids the shaking and deviation of the connecting plate 27 during the movement, and ensures the centering accuracy. The movable platform 6 is set on one side of the transverse guide rail 5. The laser sensor body 7 fixedly installed on its outer wall is the key component for realizing plate position detection. The laser sensor body 7 adopts a high-precision laser displacement sensor that can emit a high-energy laser beam.And receive the light signal reflected back from the detection module at the four corners of the carrier plate 22. The detection module is made of special reflective material, which can enhance the laser reflection effect and improve the accuracy of detection. By measuring the time of the laser beam going back and forth, the laser sensor body 7 can accurately calculate the distance between it and the detection module, thereby obtaining the initial position information of the plate. The position adjustment of the movable platform 6 is achieved through the transverse guide rail 5 and the longitudinal guide rail 4. The transverse guide rail 5 can move along the direction of the longitudinal guide rail 4, and the movable platform 6 can move along the direction of the transverse guide rail 5. This two-dimensional movement mode enables the laser sensor body 7 to adjust its position within a larger range. When the transverse guide rail 5 is at the center of the longitudinal guide rail 4, the movable platform 6 is at the center of the transverse guide rail 5. When the laser sensor body 7 is in the center of the entire device, it provides a reference position for the subsequent automatic centering operation. In actual use, the metal plate to be aligned is first carefully placed on the carrier plate 22 to ensure that the plate is placed stably and roughly in the center. After the placement is completed, the entire device is started, and the laser sensor body 7 starts working immediately, emitting a laser beam to detect the reflected light of the detection module at the four corners of the carrier plate 22, obtaining the initial position information of the plate, and transmitting this data to the controller in real time. The controller has a built-in preset centering algorithm, which accurately calculates the horizontal and vertical position deviations of the plate based on the data transmitted by the laser sensor body 7. When it is detected that the plate has a horizontal deviation, the controller quickly issues a command to start The first servo motor 28 is started. After receiving the command, the first servo motor 28 drives the first connecting gear 29 to rotate. The first connecting gear 29 is tightly meshed with the connecting plate 27, thereby pushing the connecting plate 27 to move laterally. Since the connecting plate 27 is fixedly connected to the supporting plate 22, the supporting plate 22 will move laterally with the connecting plate 27, thereby driving the plate to adjust its lateral position. Similarly, when it is detected that there is a longitudinal deviation of the plate, the controller starts the second servo motor 25, and the second servo motor 25 drives the second connecting gear 26 to rotate to achieve longitudinal position adjustment of the plate. During the entire adjustment process, the first limiting sleeve 210, the connecting rod 211 and the second limiting sleeve 212 play an important role. They not only ensure the movement of the connecting plate 27, but also ensure the longitudinal position adjustment of the plate. Stability and accuracy also provide precise guidance for the movement of the connecting plate 27. As the plate position gradually approaches the centered state, the deviation detected by the laser sensor will gradually decrease. When the deviation is reduced to within the preset centering accuracy range, the controller determines that the plate centering is complete, and the entire centering operation is completed. It is worth noting that the first servo motor 28 and the second servo motor 25 are respectively installed on one side of the first positioning block 23 and the second positioning block 24. Their own positions remain fixed throughout the entire centering process. This installation method ensures the stability of the motor when providing power and avoids the problem of centering accuracy being affected by changes in motor position. At the same time, the stable motor installation position also helps to extend the service life of the motor and improve the reliability of the entire device.

[0022] Example 2: According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7 As shown, a rectangular frame 10 is sleeved on the outer wall of the transverse guide rail 5, and a vertical plate 11 is fixedly connected to one side of the rectangular frame 10, and the vertical plate 11 is slidably connected to the movable table 6. An electric cylinder 16 is fixedly installed at the edge of the vertical plate 11, and one end of the piston rod of the electric cylinder 16 is fixedly connected to the movable table 6. A first motor 12 is fixedly installed on the top of the movable table 6, and the output end of the first motor 12 is fixedly connected to a threaded rod 13, and one end of the threaded rod 13 is threadedly connected to a movable end head 14, and the inner side of the movable end head 14 is rotatably connected to the processing block 8, and the movable end head 14 is located at the bottom of the movable table 6. An extension plate is fixedly installed on one side of the movable end 14, and a second motor 17 is fixedly installed on one side of the extension plate, and the output end of the second motor 17 is fixedly connected to a turntable 15, and the turntable 15 is detachably connected to the processing block 8. A third servo motor 9 is fixedly installed on the top of the rectangular frame 10, and the output end of the third servo motor 9 is meshed with the gear rod on the upper surface of the transverse guide rail 5.

[0023] In this embodiment, the movable table 6 serves as a key platform for installing the laser sensor body 7 and carrying the processing components. The first motor 12 and the threaded rod 13 installed on the top of the movable table 6 form a set of precise fine-tuning mechanisms. The output end of the first motor 12 is fixedly connected to the threaded rod 13. When the first motor 12 is running, the threaded rod 13 rotates accordingly. Since the threaded rod 13 and the movable end head 14 are threadedly connected, this structural design enables the movable end head 14 to be driven by the threaded rod 13 and move accurately along the axial direction of the threaded rod. The movable end head 14 is located at the bottom of the movable table 6, and the inner side thereof is rotatably connected to the processing block 8. This design allows the processing block 8 to rotate freely within a certain range, providing flexibility for subsequent processing operations. The movable end head 14 An extension plate is fixedly installed on one side of the rectangular frame 10. The second motor 17 installed on the extension plate and the turntable 15 constitute an angle adjustment mechanism for the processing block 8. The output end of the second motor 17 is fixedly connected to the turntable 15, and the turntable 15 is detachably connected to the processing block 8. This connection method is not only convenient for quickly replacing the processing block 8 according to different processing requirements, but also can drive the turntable 15 to rotate by the second motor 17, thereby driving the processing block 8 to rotate, thereby achieving precise adjustment of the processing angle. The third servo motor 9 is fixedly installed on the top of the rectangular frame 10, and its output end is engaged with the gear rod on the upper surface of the transverse guide rail 5. The operation of the third servo motor 9 can drive the transverse guide rail 5 to move smoothly on the longitudinal guide rail 4, thereby expanding the laser sensor body 7 The detection range enables it to adapt to metal plates of different sizes, further enhancing the versatility of the device. In actual operation, when metal plates of different thicknesses are placed on the carrier plate 22, the system is started. At this time, the laser sensor body 7 starts working. With its high-precision detection capability, it quickly detects changes in the thickness of the plate. The laser sensor body 7 transmits the detected signal to the controller, which analyzes and processes the signal according to a preset program and then issues a command to start the electric cylinder 16. The piston rod of the electric cylinder 16 accurately extends or retracts according to the specific situation of the plate thickness, pushing the movable table 6 up or down along the vertical plate 11, ensuring that the laser sensor body 7 always maintains an appropriate detection distance with the plate surface to achieve After accurately detecting the position of the plate and completing the height adjustment, the centering and processing preparation stage is entered. In this stage, the plate centering operation is performed according to the centering process of Example 1. Through the coordinated work of the first servo motor 28 and the second servo motor 25 in the centering mechanism, the position of the carrier plate 22 is accurately adjusted so that the metal plate reaches the preset centering accuracy. After the centering is completed, according to the specific processing requirements, a suitable processing block 8 is selected and installed on the movable end head 14. For example, when cutting processing is required, an appropriate cutting tool is selected as the processing block 8, and the cutting tool is quickly and firmly installed in place through the detachable connection structure between the movable end head 14 and the processing block 8. Then, the processing operation link is entered, and the first motor 12 is started through the controller.The first motor 12 drives the threaded rod 13 to rotate at a preset speed and direction, allowing the movable end 14 to fine-tune the cutting tool in the vertical direction. This fine-tuning process is extremely critical, as it ensures the precise relative position of the cutting tool and the plate, laying the foundation for subsequent high-quality cutting processing. During the cutting process, if the cutting angle needs to be adjusted, the controller will promptly activate the second motor 17. The second motor 17 drives the turntable 15 to rotate, and the turntable 15 drives the connected cutting tool to rotate synchronously, rotating the cutting tool to the appropriate angle to meet the processing requirements of cutting at different angles. The entire processing process is carried out efficiently and stably under the precise control of the automated control system, greatly improving the processing quality and production efficiency of metal plates.

[0024] Example 3: According to Figure 8 As shown, a centering system is used, which includes a data acquisition module, a mechanical motion control module and a data processing and control module. The data acquisition module is composed of a laser sensor body 7 and a detection module at the corner of the carrier plate 22. The laser sensor body 7 is installed on the movable table 6, which is used to emit a laser beam and receive reflected light, so as to obtain distance information from the surface of the plate, and then calculate the position of the plate. The mechanical motion control module is used to control the centering mechanism 2, the longitudinal guide rail 4, the transverse guide rail 5, the electric cylinder 16, the first motor 12, the second motor 17 and the third servo motor 9 to complete the plate centering. The data processing and control module is used to receive the data collected by the laser sensor body 7, calculate the position deviation of the plate, and generate a control signal according to a preset algorithm. The control instructions are sent to the various motors and electric cylinders 16 of the mechanical motion control module. The centering mechanism 2 of the mechanical motion control module drives the first connecting gear 29 and the second connecting gear 26 respectively through the first servo motor 28 and the second servo motor 25, driving the connecting plate 27 and the supporting plate 22 to achieve lateral and longitudinal movement to complete the plate centering. The longitudinal guide rail 4 and the transverse guide rail 5 cooperate to enable the movable table 6 and the laser sensor body 7 to move in a two-dimensional plane to meet the detection requirements of plates of different sizes. The electric cylinder 16 is used to adjust the vertical height of the movable table 6 to adapt to plates of different thicknesses. The first motor 12, the second motor 17 and the third servo motor 9 respectively realize fine-tuning of the height of the movable end head 14, rotation of the processing block 8 and longitudinal movement of the transverse guide rail 5.

[0025] The method of use and working principle of this device: When in use, first place the metal sheet on the carrier plate 22, turn on the power to start the device. The laser sensor body 7 emits a laser beam, detects the position information of the detection module at the four corners of the carrier plate 22, and calculates the position deviation of the plate. The control system controls the operation of the first servo motor 28, the second servo motor 25, the electric cylinder 16, the first motor 12, the second motor 17 and the third servo motor 9 and other executive components based on the deviation data. The various executive components move in coordination to adjust the relative position of the carrier plate 22 and the laser sensor body 7, so that the plate gradually reaches a centered state. After the centering is completed, if processing operations are required, the processing block 8 can be replaced according to the processing technology, and the position and angle of the processing block 8 can be controlled by the corresponding motor to realize the processing of the metal sheet. The entire process realizes automated control, which improves production efficiency and processing accuracy.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A metal plate automatic centering device based on a laser sensor, comprising a base plate (1) and a support frame (3), characterized in that: A centering mechanism (2) is fixedly mounted on the upper surface of the base plate (1), and the centering mechanism (2) includes a positioning frame (21) and a supporting plate (22). A connecting plate (27) is fixedly connected to the lower surface of the supporting plate (22), and a conical convex tooth is mounted on the lower surface of the connecting plate (27). A first positioning block (23) and a second positioning block (24) are fixedly mounted on the upper surface of the positioning frame (21). A first servo motor (28) is fixedly mounted on one side of the first positioning block (23), and a second servo motor (25) is fixedly mounted on one side of the second positioning block (24). The first servo motor (28) is perpendicular to the second servo motor (25). The output end of the first servo motor (28) and the output end of the second servo motor (25) are respectively fixedly mounted with a first connecting gear (29) and a second connecting gear (26), and the first connecting gear (29) and the second connecting gear (26) are both meshed and connected with the connecting plate (27). A longitudinal guide rail (4) is fixedly mounted on the top of the support frame (3), and a transverse guide rail (5) is slidably connected to the top of the longitudinal guide rail (4). A movable platform (6) is provided on one side of the transverse guide rail (5), and a laser sensor body (7) is fixedly mounted on the outer wall of the movable platform (6). Detection modules are fixedly mounted at the four corners of the carrier plate (22).

2. The metal plate automatic centering device based on a laser sensor according to claim 1, characterized in that: A first limiting sleeve (210) is fixedly mounted on the upper surface of the connecting plate (27), and a connecting rod (211) is fixedly mounted inside the first limiting sleeve (210), wherein the connecting rod (211) is perpendicular to the positioning frame (21).

3. The metal plate automatic centering device based on a laser sensor according to claim 1, characterized in that: A second limiting sleeve (212) is sleeved on the outer wall of the positioning frame (21), a through hole (213) is provided at the end of the second limiting sleeve (212), and the second limiting sleeve (212) is fixedly connected to the connecting rod (211) through the through hole (213).

4. The metal plate automatic centering device based on a laser sensor according to claim 2, characterized in that: A rectangular frame (10) is sleeved on the outer wall of the transverse guide rail (5), a vertical plate (11) is fixedly connected to one side of the rectangular frame (10), and the vertical plate (11) is slidably connected to the movable platform (6).

5. The metal plate automatic centering device based on a laser sensor according to claim 4, characterized in that: An electric cylinder (16) is fixedly mounted on the edge of the vertical plate (11), one end of the piston rod of the electric cylinder (16) is fixedly connected to the movable platform (6), a first motor (12) is fixedly mounted on the top of the movable platform (6), and an output end of the first motor (12) is fixedly connected to a threaded rod (13).

6. The metal plate automatic centering device based on a laser sensor according to claim 5, characterized in that: One end of the threaded rod (13) is threadedly connected to a movable end head (14), the inner side of the movable end head (14) is rotatably connected to a processing block (8), and the movable end head (14) is located at the bottom of the movable table (6).

7. The metal plate automatic centering device based on a laser sensor according to claim 6, characterized in that: An extension plate is fixedly mounted on one side of the movable end head (14), and a second motor (17) is fixedly mounted on one side of the extension plate. The output end of the second motor (17) is fixedly connected to a turntable (15), and the turntable (15) is detachably connected to the processing block (8).

8. The metal plate automatic centering device based on a laser sensor according to claim 4, characterized in that: A third servo motor (9) is fixedly mounted on the top of the rectangular frame (10), and an output end of the third servo motor (9) is meshedly connected to a gear rod on the upper surface of the transverse guide rail (5).

9. The metal plate automatic centering device based on a laser sensor according to claim 1, characterized in that: A centering system is used, which includes a data acquisition module, a mechanical motion control module and a data processing and control module. The data acquisition module is composed of a laser sensor body (7) and a detection module at the corner of a carrier plate (22). The laser sensor body (7) is installed on a movable table (6) and is used to emit a laser beam and receive reflected light to obtain distance information from the surface of the plate, thereby calculating the position of the plate. The mechanical motion control module is used to control the centering mechanism (2), the longitudinal guide rail (4), the transverse guide rail (5), the electric cylinder (16), the first motor (12), the second motor (17) and the third servo motor (9) to complete the centering of the plate. The data processing and control module is used to receive data collected by the laser sensor body (7), calculate the position deviation of the plate, generate control instructions according to a preset algorithm, and send them to each motor and electric cylinder (16) of the mechanical motion control module.

10. The metal plate automatic centering device based on a laser sensor according to claim 9, characterized in that: The centering mechanism (2) of the mechanical motion control module drives the first connecting gear (29) and the second connecting gear (26) respectively through the first servo motor (28) and the second servo motor (25), driving the connecting plate (27) and the supporting plate (22) to realize horizontal and vertical movement, completing the centering of the plate. The longitudinal guide rail (4) and the transverse guide rail (5) cooperate to enable the movable table (6) and the laser sensor body (7) to move in a two-dimensional plane to meet the detection requirements of plates of different sizes. The electric cylinder (16) is used to adjust the vertical height of the movable table (6) to adapt to plates of different thicknesses. The first motor (12), the second motor (17) and the third servo motor (9) respectively realize the fine adjustment of the height of the movable end (14), the rotation of the processing block (8) and the longitudinal movement of the transverse guide rail (5).

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