Electrical system for realizing accurate control based on laser detection and PLC linkage

Abstract

The invention relates to the technical field of positioning control, and discloses an electrical system for realizing accurate control based on laser detection and PLC linkage, which comprises a support frame, and a plurality of pairs of driving rollers are rotatably mounted on the support frame. The problem of inertia overtravel in conveying and positioning of heavy workpieces is solved, position signals are captured in real time through the laser detection assembly, after the position signals are analyzed through the signal processing terminal, the PLC precisely regulates and controls starting and stopping of the driving motor, meanwhile, the lifting roller and the baffle are linked to form mechanical cooperation, dynamic intervention can be achieved according to the inertia characteristic of the workpieces, and the positioning precision is improved. The inclined guiding of the lifting roller is matched with the blocking of the baffle, so that the overtravel deviation is counteracted, the positioning precision is stably controlled in a high-precision range, the overall adaptability is high, heavy workpieces with different weights and speeds can be coped with, and fixed parameter compensation does not need to be relied on; and electric and mechanical cooperative actions avoid equipment abrasion caused by pure braking, step-by-step speed reduction is not needed, and the conveying efficiency is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of positioning and control technology, specifically, it relates to an electrical system that achieves precise control based on laser detection and PLC linkage. Background Technology

[0002] In modern industrial automation, efficient workpiece transport and precise positioning are crucial for ensuring continuous and stable production line operation and improving product quality, directly impacting the accuracy and efficiency of subsequent processing, assembly, and inspection. As the manufacturing industry moves towards higher precision and automation, the requirements for workpiece positioning accuracy are becoming increasingly stringent, especially in production scenarios involving heavy workpieces such as automobile manufacturing, heavy machinery assembly, and large sheet metal processing.

[0003] Currently, most mainstream workpiece conveying and positioning systems employ a mechanical conveying mechanism combined with an electrical control system to achieve automated operation. A drive motor rotates the conveying components to transport the workpiece, various sensors detect the workpiece position, and the controller starts and stops the drive motor based on the detection signals, thus stopping the workpiece at the target station. However, in the conveying and positioning of heavy workpieces, due to their large mass, their inertia is much greater than that of light workpieces. When the sensor detects that the workpiece is approaching the target station and sends a stop signal to the controller, although the controller can promptly instruct the drive motor to stop, the inertia of the heavy workpiece prevents it from immediately stopping with the drive components; instead, it continues to slide a distance along the conveying direction. This overtravel phenomenon causes a significant deviation between the actual stopping position and the preset station, and the deviation fluctuates with the workpiece weight and conveying speed, making it difficult to accurately compensate for using electrical control with fixed parameters, thus affecting subsequent processing.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: An electrical system based on laser detection and PLC linkage for precise control includes a support frame on which several pairs of drive rollers are rotatably mounted.

[0006] The support frame is also equipped with a laser detection component; A baffle is vertically slidably disposed in the gap between the pair of drive rollers, and a synchronization plate is installed at the bottom of the baffle; Two pairs of lifting rollers are installed on the support frame. The two pairs of lifting rollers are located in the gap between adjacent drive rollers. The lifting rollers are eccentric rollers, and the eccentricity of the lifting roller far from the guide roller is greater than that of the other lifting roller. A pressure arm is installed at the rotation center of the lifting roller. A push rod is slidably installed on the pressure arm, and the end of the push rod is slidably connected to a guide block installed below the synchronous plate. The guide block has an inclined surface for driving the push rod to move. The movement of the push rod drives the two lifting rollers to rotate and causes the workpiece on the lifting rollers to tilt and lift. This allows the workpiece that exceeds the working position due to inertia to slide onto the baffle in an inclined state during the shutdown process, thereby improving the positioning accuracy.

[0007] In a preferred embodiment of the present invention, the bottom of the support frame is provided with several pairs of support legs. Cross ribs are installed between adjacent support legs on the same side, and horizontal ribs are installed between adjacent support legs on both sides. The connection points of the horizontal ribs and the cross ribs on the support legs are different, which is used to reduce stress concentration and damage to the support legs.

[0008] In a preferred embodiment of the present invention, each of the drive rollers is equipped with a connecting shaft at its rotation center, and both ends of the connecting shaft are disposed inside the support frame. The drive rollers rotate in the same direction. The drive rollers are used to transport workpieces. The side wall of the support frame is equipped with a suitable bending bracket, and a drive motor is mounted on the bending bracket. The output end of the drive motor is connected to the suitable connecting shaft.

[0009] In a preferred embodiment of the present invention, the laser detection assembly includes a laser signal transmitter and a laser signal receiver, which are located on both sides of the support frame. The laser signal transmitter and the laser signal receiver are connected to the baffle. An L-shaped bracket is installed on the outer shell of the laser signal transmitter and the laser signal receiver. The L-shaped bracket is connected to the side wall of the support frame by bolts. Several pairs of inclined plates are installed at the bend of the L-shaped bracket, and the inclined plates are triangular.

[0010] In a preferred embodiment of the present invention, a PLC controller is installed on the side wall of the support frame. The PLC controller is electrically connected to several pairs of drive motors and to a signal processing terminal. The signal processing terminal is electrically connected to a laser detection component, which is used to detect the position of the workpiece and transmit the signal to the signal processing terminal. The signal processing terminal processes the signal and sends it to the PLC controller, which is used to control the start and stop of the drive motors.

[0011] In a preferred embodiment of the present invention, an electric push rod is installed at the bottom of the synchronization plate, and the outer shell of the electric push rod is connected to the foundation.

[0012] In a preferred embodiment of the present invention, a pair of retaining shafts are rotatably mounted on the side wall of the support frame, and a rocker arm is rotatably mounted on the retaining shafts. A torsion spring is sleeved on the retaining shafts, one end of the torsion spring is engaged with the side wall of the rocker arm, and the other end is engaged with the side wall of the support frame. The rocker arm is in an inclined state, and a synchronizing rod is mounted on one end of the rocker arm. The synchronizing rod is slidably disposed in a slot opened in the side wall of the synchronizing plate. A fixing block is mounted on the other end of the rocker arm, and a synchronizing shaft is mounted on the fixing block. A guide roller is mounted at the end of the synchronizing shaft, and the upper surface of the guide roller is flush with the upper surface of the drive roller.

[0013] In a preferred embodiment of the present invention, the upper surface of the lifting roller is flush with the upper surface of the drive roller, a positioning shaft is installed at the eccentric position of the lifting roller, the positioning shaft is rotatably connected to the support frame, the positioning shaft is connected to the pressure arm, and a plurality of pairs of rollers are installed on the lifting roller.

[0014] In a preferred embodiment of the present invention, a strip groove is provided on the pressure arm, a slide rod is slidably arranged on the strip groove, a top rod is installed at the end of the slide rod, and the top rod is horizontally slidably arranged at the bottom of the support frame. A ball is installed at the end of the top rod, and the ball rolls on the guide block.

[0015] In a preferred embodiment of the present invention, a positioning seat is installed at the bottom of the support frame, the positioning seat is movably connected to the top rod, a positioning plate is installed on the top rod, and a return spring is sleeved on the top rod. One end of the return spring is engaged with the positioning seat, and the other end of the return spring is engaged with the positioning plate. The return spring is used to press the top rod so that the top rod fits against the guide block.

[0016] Compared with the prior art, the present invention has the following advantages: This invention solves the problem of inertial overtravel in the positioning and conveying of heavy workpieces. It uses a laser detection component to capture position signals in real time. After analysis by a signal processing terminal, a PLC controller precisely controls the start and stop of the drive motor. Simultaneously, the lifting roller and the baffle work together mechanically. This design can dynamically intervene based on the workpiece's inertial characteristics, using the tilting guidance of the lifting roller and the blocking action of the baffle to offset the overtravel deviation, thus stabilizing the positioning accuracy within a high precision range. Furthermore, it has strong overall adaptability, capable of handling heavy workpieces of varying weights and speeds without relying on fixed parameter compensation. The coordinated electrical and mechanical action avoids equipment wear caused by simple braking and eliminates the need for step-by-step deceleration, ensuring conveying efficiency.

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram: Figure 1This is an overall diagram of an electrical system that achieves precise control based on laser detection and PLC linkage. Figure 2 A front view of an electrical system that achieves precise control based on laser detection and PLC linkage; Figure 3 A side view of an electrical system that achieves precise control based on laser detection and PLC linkage; Figure 4 This is a partial description of an electrical system that achieves precise control based on laser detection and PLC linkage. Figure 1 ; Figure 5 This is a partial description of an electrical system that achieves precise control based on laser detection and PLC linkage. Figure 2 ; Figure 6 This is a diagram of the lifting roller connection structure of an electrical system that achieves precise control based on laser detection and PLC linkage. Figure 7 This is a diagram showing the connection structure of a synchronization board for an electrical system that achieves precise control based on laser detection and PLC linkage. Figure 8 An electrical system for achieving precise control based on laser detection and PLC linkage. Figure 7 Enlarged view of point A in the middle; Figure 9 This is an electrical signal flow diagram of an electrical system that achieves precise control based on laser detection and PLC linkage.

[0019] In the picture: 1. Support frame; 11. Drive roller; 111. Drive motor; 112. Connecting shaft; 113. Bending bracket; 12. Support leg; 121. Cross rib; 122. Horizontal rib; 13. Laser signal transmitter; 131. Laser signal receiver; 132. L-shaped bracket; 133. Inclined plate; 14. PLC controller; 2. Electric push rod; 21. Baffle; 211. Synchronizing plate; 22. Guide roller; 221. Synchronizing shaft; 222. Fixing block; 23. Rocker arm; 231. Shaft retainer; 232. Torsion spring; 233. Synchronizing rod; 234. Slotted groove; 3. Lifting roller; 31. Positioning shaft; 311. Roller; 32. Pressure arm; 321. Strip groove; 322. Slide rod; 33. Top rod; 331. Positioning seat; 332. Positioning plate; 333. Return spring; 34. Guide block; 341. Inclined surface; 342. Ball bearing. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0021] Example 1: like Figures 1 to 9 As shown, an electrical system based on laser detection and PLC linkage to achieve precise control includes a support frame 1, on which several pairs of drive rollers 11 are rotatably mounted.

[0022] A laser detection assembly is also installed on support frame 1; A baffle 21 is vertically slidably disposed in the gap between a pair of drive rollers 11, and a synchronization plate 211 is installed at the bottom of the baffle 21; Two pairs of lifting rollers 3 are installed on the support frame 1. The two pairs of lifting rollers 3 are located in the gap between adjacent drive rollers 11. The lifting rollers 3 are eccentric rollers. The eccentricity of the lifting roller 3 away from the guide roller 22 is greater than that of the other lifting roller 3. A pressure arm 32 is installed at the rotation center of the lifting roller 3. A push rod 33 is slidably installed on the pressure arm 32. The end of the push rod 33 is slidably connected to the guide block 34 installed below the synchronous plate 211. The guide block 34 has an inclined surface 341 for driving the push rod 33 to move. The movement of the push rod 33 drives the two lifting rollers 3 to rotate and causes the workpiece on the lifting rollers 3 to tilt and lift. Thus, during the shutdown process, the workpiece that exceeds the station due to inertia slides onto the baffle 21 in an inclined state, improving the positioning accuracy. The lifting roller 3, which adopts an eccentric design, can tilt the workpiece by rotating to create a height difference, effectively guiding the workpiece that is sliding inertia towards the baffle 21. Furthermore, the top rod 33 cooperates with the inclined surface 341 of the guide block 34 to achieve synchronous driving of the lifting roller 3 and ensure coordinated action.

[0023] like Figures 1 to 9 As shown in the specific embodiment, several pairs of support legs 12 are installed at the bottom of the support frame 1. Cross ribs 121 are installed between adjacent support legs 12 on the same side, and horizontal ribs 122 are installed between adjacent support legs 12 on opposite sides. The connection points of the horizontal ribs 122 and the cross ribs 121 on the support legs 12 are different, which is used to reduce stress concentration and damage to the support legs 12. The reinforcement of the support legs 12 by the cross ribs 121 and the horizontal ribs 122 can improve the overall stability of the support frame 1. The different connection points of the cross ribs 121 and the horizontal ribs 122 can disperse stress to reduce damage to the support legs 12 caused by stress concentration, thereby enhancing the structural load-bearing capacity and extending the service life of the equipment.

[0024] like Figures 1 to 9As shown, each drive roller 11 has a connecting shaft 112 mounted at its rotation center. Both ends of the connecting shaft 112 pass through the support frame 1. Several drive rollers 11 rotate in the same direction. The drive rollers 11 are used to transport workpieces. A suitable bending bracket 113 is mounted on the side wall of the support frame 1. A drive motor 111 is mounted on the bending bracket 113, and the output end of the drive motor 111 is connected to the suitable connecting shaft 112. The drive motor 111 drives the drive rollers 11 to rotate via the connecting shaft 112, enabling stable workpiece transport. The simultaneous rotation of multiple drive rollers 11 ensures consistent workpiece transport direction to avoid deviation. The bending bracket 113 provides a stable mounting position for the drive motor 111, ensuring stable power transmission.

[0025] Example 2: The difference between the above embodiments and this embodiment is that: Figures 1 to 9 As shown, the laser detection assembly includes a laser signal transmitter 13 and a laser signal receiver 131, which are located on opposite sides of the support frame 1. The laser signal transmitter 13 and laser signal receiver 131 are connected to a baffle 21. An L-shaped bracket 132 is mounted on the outer shell of the laser signal transmitter 13 and laser signal receiver 131. The L-shaped bracket 132 is bolted to the side wall of the support frame 1. Several pairs of triangular inclined plates 133 are installed at the bend of the L-shaped bracket 132. The laser signal transmitter 13 and laser signal receiver 131 work together to accurately detect the workpiece position. The bolted connection of the L-shaped bracket 132 facilitates the installation and adjustment of the laser detection assembly. The triangular inclined plates 133 enhance the strength of the bend of the L-shaped bracket 132 to ensure the stability of the detection assembly, thereby improving detection accuracy.

[0026] like Figures 1 to 9 As shown, in a specific embodiment, a PLC controller 14 is installed on the side wall of the support frame 1. The PLC controller 14 is electrically connected to several pairs of drive motors 111, and is also electrically connected to a signal processing terminal. The signal processing terminal is electrically connected to a laser detection component, which detects the workpiece position and transmits the signal to the signal processing terminal. The signal processing terminal processes the signal and sends it back to the PLC controller 14, which controls the start and stop of the drive motors 111. The laser detection component, signal processing terminal, and PLC controller 14 form a closed-loop control system, enabling real-time control of workpiece conveying. The precise control of the drive motors 111 by the PLC controller 14 improves the system response speed, and the electrical connections of each component ensure timely and accurate signal transmission, thereby improving control precision.

[0027] Example 3: The difference between the above embodiments and this embodiment is that: Figures 1 to 9As shown, an electric push rod 2 is installed at the bottom of the synchronization plate 211. The outer shell of the electric push rod 2 is connected to the foundation. A pair of retaining shafts 231 are rotatably installed on the side wall of the support frame 1. A rocker arm 23 is rotatably installed on the retaining shafts 231. A torsion spring 232 is sleeved on the retaining shafts 231. One end of the torsion spring 232 is engaged with the side wall of the rocker arm 23, and the other end is engaged with the side wall of the support frame 1. The rocker arm 23 is in an inclined state. A synchronization rod 233 is installed at one end of the rocker arm 23. The synchronization rod 233 is slidably arranged in a slot 234 opened in the side wall of the synchronization plate 211. A fixing block 222 is installed at the other end of the rocker arm 23. A synchronization shaft 221 is installed on the fixing block 222. A guide roller 22 is installed at the end of the synchronization shaft 221. The upper surface of the guide roller 22 is flush with the upper surface of the drive roller 11. The electric push rod 2 provides power to the synchronization plate 211, enabling the linkage control of the baffle 21 and the guide roller 22. The torsion spring 232 can reset the rocker arm 23 to ensure that the guide roller 22 is flush with the drive roller 11 when not in operation. The synchronization rod 233 and the slot 234 cooperate to convert the vertical movement of the synchronization plate 211 into the rotational movement of the rocker arm 23 to achieve the precise movement of the guide roller 22. When working, the guide roller 22 can be retracted downwards to avoid interference with the inclined workpiece, and when not working, it ensures the smooth transport of the workpiece.

[0028] like Figures 1 to 9 As shown, in a specific embodiment, the upper surface of the lifting roller 3 is flush with the upper surface of the drive roller 11. A positioning shaft 31 is installed at the eccentric position of the lifting roller 3. The positioning shaft 31 is rotatably connected to the support frame 1 and is connected to the pressure arm 32. Several pairs of rollers 311 are installed on the lifting roller 3. A strip groove 321 is opened on the pressure arm 32. A slide rod 322 is slidably arranged on the strip groove 321. A top rod 33 is installed at the end of the slide rod 322 and is horizontally slidably arranged at the bottom of the support frame 1. A ball bearing 342 is installed at the end of the top rod 33 and rolls on the guide block 34. The flush upper surfaces of the lifting roller 3 and the drive roller 11 ensure smooth workpiece conveying. The roller 311 reduces the friction between the workpiece and the lifting roller 3 to facilitate workpiece sliding and position adjustment. The sliding rod 322 and the strip groove 321 cooperate to smoothly convert the horizontal movement of the push rod 33 into the rotational movement of the pressure arm 32. The ball bearing 342 reduces the friction between the push rod 33 and the guide block 34 to ensure smooth movement and extend the service life of the components.

[0029] like Figures 1 to 9As shown, furthermore, a positioning seat 331 is installed at the bottom of the support frame 1. The positioning seat 331 is movably connected to the top rod 33. A positioning plate 332 is installed on the top rod 33. A return spring 333 is sleeved on the top rod 33. One end of the return spring 333 is engaged with the positioning seat 331, and the other end is engaged with the positioning plate 332. The return spring 333 is used to press the top rod 33, so that the top rod 33 is in contact with the guide block 34. The positioning seat 331 provides guidance for the top rod 33 to ensure its horizontal sliding stability. The return spring 333 ensures that the top rod 33 is always in contact with the guide block 34 to ensure timely action response. The positioning plate 332 provides a force point for the return spring 333 to ensure that the spring function is effective, thereby maintaining the stable working state of the top rod 33.

[0030] The implementation principle of an electrical system based on laser detection and PLC linkage for precise control according to the present invention is as follows: During operation, the drive motor 111 drives the drive roller 11 to rotate via the connecting shaft 112. Several drive rollers 11 maintain the same direction of rotation, thus stably conveying the workpiece. During workpiece conveying, the laser detection component monitors the workpiece position in real time: the laser signal transmitter 13 and the laser signal receiver 131 are located on opposite sides of the support frame 1, forming a detection optical path. When a workpiece passes by, changes in the optical path state are captured, and the relevant signals are transmitted to the signal processing terminal. The signal processing terminal processes the received signals and sends the processing results to the PLC controller 14. The PLC controller 14 is electrically connected to the drive motor 111, thereby controlling the start and stop of the drive motor 111 and achieving real-time control of the workpiece conveying.

[0031] However, for heavy workpieces, even if the PLC controller 14 has issued a stop signal and the drive motor 111 has stopped running, the workpiece will still continue to slide forward a distance due to its own large inertia, which may easily exceed the preset station range and affect the subsequent positioning accuracy.

[0032] Therefore, when the laser detection component detects that the leading edge of the workpiece is approaching the preset target station boundary through the change in the obstruction of the laser signal, it will immediately send a trigger signal to the signal processing terminal. After calculation and analysis, the signal processing terminal outputs an early intervention command to the PLC controller 14. This command simultaneously activates the coordinated action of the electric push rod 2 and the lifting mechanism: the piston rod of the electric push rod 2 extends rapidly, pushing the top-connected synchronous plate 211 to move vertically upward. The baffle 21 at the top of the synchronous plate 211 then rises from the gap between the drive rollers 11 until the upper edge of the baffle 21 is a certain height above the conveying plane of the drive rollers 11, forming a mechanical barrier.

[0033] Furthermore, when the synchronizing plate 211 moves upward under the drive of the electric push rod 2, the slot 234 on its side wall rises along with it. The synchronizing rod 233, which is slidably connected in the slot, is subjected to an upward force, causing the rocker arm 23 to rotate around the retaining shaft 231 as the fulcrum. Since the rocker arm 23 is in an inclined state, and the torsion spring 232 sleeved on the retaining shaft 231 was originally in a pre-tightened state, the rocker arm 23 now overcomes the elastic force of the torsion spring 232 and swings towards the inside of the support frame 1. The synchronizing shaft 221 connected to the other end of the rocker arm 23 then pulls the guide roller 22 downward to flip.

[0034] Driven by the rocker arm 23, the guide roller 22 gradually moves downward from its original conveying position flush with the upper surface of the drive roller 11 to below the gap between the drive rollers 11, ensuring that it will not interfere with the inclined workpiece.

[0035] Meanwhile, the guide block 34, which moves downward in sync with the synchronous plate 211, forms a slidable contact with the ball bearing 342 at the end of the push rod 33 through its inclined surface 341 designed at its bottom. As the guide block 34 continues to move downward, the inclined surface 341 gradually generates a horizontal thrust on the ball bearing 342, forcing the push rod 33 to overcome the preload of the return spring 333 and slide horizontally away from the baffle 21 along the guide hole in the positioning seat 331. The slide rod 322 at the end of the push rod 33 is embedded in the slot 321 of the pressure arm 32. When the push rod 33 moves horizontally, the relative sliding of the slide rod 322 in the slot 321 causes the pressure arm 32 to deflect around the positioning shaft 31 as the center of rotation, thereby driving the lifting roller 3, which is rigidly connected to the pressure arm 32, to rotate synchronously.

[0036] Because there is a specific difference in the eccentricity of the two lifting rollers 3 (the eccentricity of the lifting roller 3 farther from the guide roller 22 is greater than that of the other lifting roller 3), during synchronous rotation at the same angle, a height difference is formed at the top of the two lifting rollers 3: the top of the lifting roller 3 closer to the baffle 21 rises to a lower height, while the top of the lifting roller 3 farther from the baffle 21 rises to a higher height. This causes the workpiece, which was originally placed horizontally on the drive roller 11, to tilt towards the baffle 21 after being lifted. At this time, even if the workpiece has a large inertia due to its own weight and continues to slide forward even after the drive motor 111 has stopped running, its sliding trajectory will be guided by the inclined surface: the center of gravity of the workpiece shifts towards the baffle 21, and the friction between the bottom and the surface of the lifting roller 3 forms a component force pointing towards the baffle 21, causing the workpiece to gradually move closer to the baffle 21 while sliding due to inertia.

[0037] When the workpiece finally contacts the raised baffle 21, the blocking force of the baffle 21 and the guiding force generated by the inclined surface work together to stop the workpiece from sliding within a short distance, and its front edge just fits against the surface of the baffle 21, achieving precise alignment with the preset work station.

Claims

1. An electrical system based on laser detection and PLC linkage to achieve precise control, comprising a support frame (1), characterized in that: A plurality of pairs of driving rollers (11) are rotatably installed on the support frame (1); ​ A laser detection assembly is also installed on the support frame (1); A baffle (21) is vertically slidably arranged in the gap of a pair of the driving rollers (11), and a synchronous plate (211) is installed at the bottom of the baffle (21); Two pairs of lifting rollers (3) are installed on the support frame (1), and the two pairs of lifting rollers (3) are respectively arranged in the gaps between adjacent driving rollers (11), the lifting rollers (3) are eccentric rollers, the eccentric distance of the lifting roller (3) away from the guide roller (22) is greater than that of the other lifting roller (3), a pressing arm (32) is installed at the rotation center of the lifting roller (3), a top rod (33) is slidably arranged on the pressing arm (32), the end of the top rod (33) is slidably connected with a guide block (34) installed below the synchronous plate (211), an inclined surface (341) for driving the movement of the top rod (33) is formed in the guide block (34), the movement of the top rod (33) drives the rotation of the two lifting rollers (3), and the workpiece on the lifting roller (3) is tilted and lifted, so that the workpiece exceeding the station due to inertia during shutdown is slid along the inclined state to the baffle (21), and the positioning accuracy is improved.

2. The electrical system based on laser detection and PLC linkage for precise control according to claim 1, characterized in that, A plurality of pairs of support legs (12) are installed at the bottom of the support frame (1), a cross rib (121) is installed between adjacent support legs (12) on the same side, a horizontal rib (122) is installed between adjacent support legs (12) on both sides, the connection points of the horizontal rib (122) and the cross rib (121) on the support leg (12) are not the same, and the stress concentration is reduced to reduce damage to the support leg (12).

3. The electrical system based on laser detection and PLC linkage for precise control according to claim 1, characterized in that, A connecting shaft (112) is installed at the rotation center of each driving roller (11), the connecting shaft (112) is arranged through the support frame (1), the rotation directions of the driving rollers (11) are the same, the driving rollers (11) are used for conveying workpieces, a matching bending support (113) is installed on the side wall of the support frame (1), a driving motor (111) is installed on the bending support (113), and the output end of the driving motor (111) is connected with the matching connecting shaft (112).

4. The electrical system based on laser detection and PLC linkage for precise control according to claim 1, characterized in that, The laser detection assembly comprises a laser signal transmitter (13) and a laser signal receiver (131), the laser signal transmitter (13) and the laser signal receiver (131) are respectively arranged on both sides of the support frame (1), the laser signal transmitter (13) and the laser signal receiver (131) are connected with the baffle (21), L-shaped supports (132) are installed on the shells of the laser signal transmitter (13) and the laser signal receiver (131), the L-shaped supports (132) are connected with the side walls of the support frame (1) through bolts, a plurality of pairs of inclined plates (133) are installed at the bending portions of the L-shaped supports (132), and the inclined plates (133) are triangular.

5. The electrical system based on laser detection and PLC linkage for precise control according to claim 2, characterized in that, The support frame (1) is provided with a PLC controller (14) on the side wall, the PLC controller (14) is electrically connected with a plurality of pairs of driving motors (111), the PLC controller is electrically connected with a signal processing terminal, the signal processing terminal is electrically connected with a laser detection assembly, the laser detection assembly is used for detecting the position of a workpiece, and signals are transmitted to the signal processing terminal, the signals are processed by the signal processing terminal and then transmitted to the PLC controller (14), and the PLC controller (14) is used for controlling the start and stop of the driving motor (111).

6. The electrical system based on laser detection and PLC linkage for precise control according to claim 1, characterized in that, The bottom of the synchronization plate (211) is provided with an electric push rod (2), and the shell of the electric push rod (2) is connected with the foundation.

7. The electrical system based on laser detection and PLC linkage for precise control according to claim 1, characterized in that, The support frame (1) is provided with a pair of clamping shafts (231) on the side wall, the clamping shafts (231) are provided with rocking arms (23) which are rotatably connected to the clamping shafts (231), torsional springs (232) are arranged on the clamping shafts (231) in a sleeved mode, one end of the torsional spring (232) is clamped to the side wall of the rocking arm (23), the other end of the torsional spring (232) is clamped to the side wall of the support frame (1), the rocking arm (23) is in an inclined state, one end of the rocking arm (23) is provided with a synchronization rod (233), the synchronization rod (233) is slidably arranged in a slot (234) formed in the side wall of the synchronization plate (211), the other end of the rocking arm (23) is provided with a fixed block (222), the fixed block (222) is provided with a synchronization shaft (221), and the synchronization shaft (221) is provided with a guide roller (22) at the tail end. 8.The electrical system based on laser detection and PLC linkage for precise control according to claim 1, wherein, The upper surface of the lifting roller (3) is flush with the upper surface of the driving roller (11), the eccentric position of the lifting roller (3) is provided with a positioning shaft (31), the positioning shaft (31) is rotatably connected with the support frame (1), the positioning shaft (31) is connected with a pressing arm (32), and the lifting roller (3) is provided with a plurality of pairs of rollers (311). 9.The electrical system based on laser detection and PLC linkage for precise control according to claim 1, wherein, The pressing arm (32) is provided with a strip-shaped slot (321), the strip-shaped slot (321) is slidably provided with a sliding rod (322), the tail end of the sliding rod (322) is provided with a jacking rod (33), the jacking rod (33) is horizontally slidably arranged at the bottom of the support frame (1), the tail end of the jacking rod (33) is provided with a ball (342), and the ball (342) rolls on the guide block (34).

10. The electrical system based on laser detection and PLC linkage for precise control according to claim 1, characterized in that, The bottom of the support frame (1) is provided with a positioning seat (331), the positioning seat (331) is movably penetrated by the jacking rod (33), the jacking rod (33) is provided with a positioning plate (332), and the jacking rod (33) is provided with a reset spring (333) in a sleeved mode, one end of the reset spring (333) is clamped to the positioning seat (331), the other end of the reset spring (333) is clamped to the positioning plate (332), and the reset spring (333) is used for pressing the jacking rod (33) so that the jacking rod (33) is attached to the guide block (34).

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