Intelligent numerical control angle steel assembly line

Abstract

The utility model provides an intelligent numerical control angle steel assembly line equipment, including conveying mechanism for conveying angle steel, be provided with actuating mechanism on the conveying path of conveying mechanism, actuating mechanism is used for angle steel's making and cutting angle, conveying mechanism includes the placement platform for placing angle steel and the drive assembly for leading angle steel to move along the length direction of placement platform, the both ends of conveying mechanism are provided with trigger device respectively, and trigger device is elastically abuts with angle steel after angle steel is placed on placement platform and sends trigger signal to control drive assembly and actuating mechanism, the beneficial effects of the utility model are: through mechanical trigger device replaces visual equipment, effectively avoids the interference of dust, smoke and other pollutants to detection system, thereby improves the reliability and stability of production line, reduces the identification error, misjudgment or system failure caused by image blur or distortion, reduces maintenance cost and downtime, is applicable to welding workshop and other dusty environment.

Description

Technical Field

[0001] This invention relates to a production equipment, and more particularly to an intelligent CNC angle steel production line equipment. Background Technology

[0002] Intelligent CNC angle steel production lines play a crucial role in modern industry, widely used in building structures, bridge engineering, machinery manufacturing, and aerospace, for the efficient production of standard or customized angle steel components to meet the needs of large-scale infrastructure construction. The typical process begins with the automatic feeding and uncoiling of raw steel coils, followed by straightening to eliminate internal stress and ensure straightness, and then cutting to preset dimensions using high-precision cutting equipment. When needed, the production line integrates punching units for hole processing, or welding workstations for connecting and reinforcing the angle steel. In the forming stage, rolling or bending machinery is used to form the required L-shape or other cross-sectional shapes, followed by cooling to stabilize material properties. Finally, quality is monitored by an automated inspection system, and qualified products proceed to packaging, completing the entire production cycle. This process relies heavily on automated control, achieving seamless integration from raw materials to finished products, significantly improving production efficiency and product standardization, and reducing human intervention and operational errors.

[0003] However, existing intelligent CNC angle steel production line equipment has significant shortcomings in terms of intelligent transformation. To improve monitoring accuracy and automation levels, most systems use vision devices for real-time detection and control. However, in practical applications, especially in welding workshops or multi-functional integrated workshops, pollutants such as dust and fumes generated during processing can severely affect the performance of vision devices. Dust adhering to camera lenses causes image blurring or distortion, leading to recognition errors, misjudgments, or system malfunctions. This not only reduces the reliability and efficiency of the production line but may also increase maintenance costs and downtime, limiting the widespread application of intelligent technology in harsh industrial environments and potentially even causing production safety accidents. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an intelligent CNC angle steel production line that improves the stable operation of intelligent CNC angle steel production line equipment in harsh environments.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: An intelligent CNC angle steel production line equipment includes a conveying mechanism for conveying angle steel, an execution mechanism is provided on the conveying path of the conveying mechanism, the execution mechanism is used for printing and cutting angle steel, the conveying mechanism includes a placement table for placing angle steel and a driving component for driving the angle steel to move along the length direction of the placement table, and triggering devices are respectively provided at both ends of the conveying mechanism. After the angle steel is placed on the placement table, the triggering device elastically abuts against the angle steel and sends a trigger signal to control the driving component and the execution mechanism.

[0006] The beneficial effects of this invention are: by replacing vision equipment with a mechanical triggering device, interference from pollutants such as dust and smoke on the detection system is effectively avoided, thereby improving the reliability and stability of the production line, reducing identification errors, misjudgments, or system failures caused by image blurring or distortion, lowering maintenance costs and downtime, and making it suitable for dusty environments such as welding workshops. Furthermore, the mechanical triggering device has a fast response speed, simple structure, and is easy to maintain, improving the accuracy of automated control and ensuring production safety. As a preferred embodiment, the triggering device may include a mechanical switch assembly. This assembly contacts an angle steel via an elastic element. When the angle steel is positioned correctly, the elastic element deforms under pressure, causing the switch contacts to close and sending an electrical signal to the control system to start or stop the relevant mechanism. For example, the switch assembly uses a lever principle, amplifying the triggering action through the minute displacement of the angle steel, ensuring reliable triggering even when the angle steel's position deviates, without the need for complex calibration. As another preferred approach, the triggering device can integrate a position sensor and a robotic arm. A buffer pad is set on the robotic arm to elastically abut against the angle steel. When the angle steel moves to the designated position, the buffer pad senses the pressure change and converts it into an electrical signal through a linkage mechanism to control the start and stop of the drive components and actuators, achieving seamless collaborative operation and avoiding the delay or failure of the vision system in harsh environments.

[0007] Furthermore, the triggering device includes a first triggering component and a second triggering component. The first triggering component is disposed on the side of the placement platform away from the actuator and is used to start the drive component. The second triggering component is disposed on the side of the placement platform close to the actuator and is used to start the actuator and stop the drive component.

[0008] By setting up a first trigger component and a second trigger component, automated segmented control of the angle steel conveying and processing process is achieved, optimizing the workflow of the production line. The first trigger component automatically starts the drive component when the angle steel is initially placed, reducing manual intervention and improving production efficiency. The second trigger component starts the processing operation in advance when the angle steel approaches the actuator, ensuring precise processing timing and avoiding delays. At the same time, it shuts off the drive component promptly after the angle steel leaves, saving energy and preventing idling. This helps coordinate the operation of the entire production line and reduces the risk of misoperation. As a preferred approach, the first trigger component can adopt a proximity switch mechanism. When the angle steel is placed onto the placement table by external equipment (such as a gantry), the end of the angle steel presses against a spring-loaded contact rod. The contact rod triggers a micro switch, sending a start signal to the controller of the drive motor, causing the conveyor belt to start running. The second trigger component includes a rotatable stop block connected to the placement table via a torsion spring. When the angle steel moves to the processing position, it pushes the stop block to rotate, triggering a limit switch to start the printing or cutting mechanism. After the angle steel passes, the stop block resets and sends a stop signal to stop the drive. As another preferred method, both the first and second triggering components are based on the principle of magnetic induction. Magnets and Hall sensors are embedded on both sides of the placement platform. When the angle steel, as a magnetic conductor, approaches, it changes the magnetic field. The sensor outputs a signal to control the relay, thereby managing the circuit switching of the drive and execution components, realizing non-contact triggering and enhancing durability.

[0009] Furthermore, the first triggering component and the second triggering component have the same structure.

[0010] The first and second trigger components have identical structures, simplifying the design and manufacturing process of the production line, reducing parts inventory and procurement costs, and facilitating quick identification and replacement of faulty components by maintenance personnel, thus reducing downtime. This standardized design improves the modularity of the system, facilitating production line expansion or modification, and enhancing overall maintainability and reliability. As a preferred option, both trigger components can employ the same lever-type mechanical switch, including a housing, spring, trigger button, and linkage; when the angle steel contacts, the spring compresses, causing the linkage to move, the trigger button closes the circuit, and a signal is sent. This structure is simple, durable, adaptable to harsh environments, and requires no frequent adjustments. Alternatively, the trigger components can be designed as pluggable modules, containing a universal sensor head and signal processor. The sensor head is fixed to the platform by threads or clips, and the processor is uniformly programmed to differentiate the functions of the first and second components. Simply replacing the sensor head allows for adaptation to different location requirements, enabling rapid deployment and upgrades.

[0011] Furthermore, the second triggering component sends a trigger signal to the actuator to start the actuator when the angle steel comes into contact with it, and sends a trigger signal to the drive component to shut down the drive component when the angle steel leaves its contact with it.

[0012] The second triggering component controls the start-up of the actuator and the shutdown of the drive component through contact and disengagement actions, respectively. This achieves precise timing management of the processing process, ensuring that the actuator starts working immediately when the angle steel is in place, improving processing efficiency and quality. Simultaneously, the drive component stops promptly after the angle steel leaves, avoiding resource waste and equipment wear. This optimizes energy utilization and reduces failures caused by over-operation. As a preferred embodiment, the second triggering component includes a swingable contact arm, hinged to the side of the placement table and connected to a pressure sensor. When the angle steel moves to the contact arm's position, the arm swings under pressure, and the pressure sensor detects a threshold signal, activating the actuator's motor or cylinder. As the angle steel continues to move away, the contact arm rebounds under the action of a return spring, the sensor signal disappears, and a shutdown command is sent to the drive component's controller, cutting off the power. As another preferred method, the second triggering component adopts an optomechanical combination, which includes a light shield and a photosensitive switch. The light shield contacts the angle steel through an elastic hinge. When the angle steel is against it, it pushes the light shield to block the light, and the photosensitive switch outputs a high level to start the actuator. After the angle steel is removed, the light shield resets, the light is restored, and the photosensitive switch outputs a low level to shut down the drive component, realizing contactless signal switching.

[0013] Furthermore, the first triggering component is disposed on the end face of the placement platform facing the angle steel. The first triggering component includes a trigger button and a trigger lever that cooperates with the trigger button. The two ends of the trigger lever cooperate with the angle steel and the trigger button respectively, and the stroke of the trigger button side of the trigger lever is greater than the stroke of the angle steel side.

[0014] A roller with a V-shaped cross-section is installed on the placement platform to cooperate with the angle steel, which helps to stabilize and center the angle steel, reduce offset during transportation, and improve processing accuracy. The first trigger component achieves stroke multiplication through a trigger lever, so that the small displacement of the angle steel can amplify the action of the trigger button, enhancing trigger sensitivity and reliability, and ensuring accurate signal transmission even if the angle steel is not fully placed or in a vibrating environment. This reduces the probability of false triggering and improves the stability of automated control. As a preferred method, the trigger lever can be designed as an L-shaped rod, with one end fixed to the end face of the placement platform via a rotating shaft, and the other end extending into a contact head that elastically abuts against the end of the angle steel. When the angle steel is placed, the contact head is pressed, causing the lever to rotate around the rotating shaft, and the pressure head at the other end presses the trigger button with a larger displacement. The trigger button is a micro switch, which sends a start signal after closing. The lever's arm length ratio optimizes force transmission and can operate without an external power supply. As another preferred method, the trigger lever is integrated into the groove of the placement platform, including a slider and linkage mechanism. The slider contacts the angle steel through a spring. When the angle steel moves, it pushes the slider to slide linearly. The slider is converted into rotational motion through the inclined plane and roller, which drives a cam to press the trigger button, realizing multi-stage stroke amplification and ensuring that the mechanical parts can still operate smoothly in dusty environments.

[0015] Furthermore, the trigger lever includes a fixed end, a trigger end, and a rotating rod. An elastic fulcrum is provided between the fixed end and the trigger end for moving the trigger end toward the trigger button. One end of the elastic fulcrum is fixed to the placement platform, and the other end is connected to the rotating rod. A pressing protrusion is provided between the rotating rod and the trigger end toward the angle steel. After the angle steel is placed on the placement platform, the pressing protrusion abuts against the angle steel and deforms to move the trigger end toward the trigger button.

[0016] The specific structure of the trigger lever achieves efficient force transmission and motion conversion through the coordinated action of the fixed end, trigger end, rotating rod, and elastic fulcrum. The elastic fulcrum provides a reset capability, ensuring that the trigger lever automatically resets after the angle steel is removed, improving the system's reusability and durability. The pressing protrusion is in direct contact with the angle steel, absorbing impact through deformation and protecting the triggering components from damage, while ensuring the smoothness and accuracy of the triggering action. This helps extend equipment life and reduce maintenance requirements. As a preferred method, the elastic fulcrum can be a torsion spring or leaf spring. The torsion spring is sleeved on the fixed shaft, with one end fixed to the placement platform and the other end connected to the rotating rod. When the angle steel presses against the pressing protrusion, the rotating rod rotates around the elastic fulcrum, causing the trigger end to move in an arc trajectory. The trigger end is equipped with a roller to reduce friction with the trigger button, ensuring stable signal output. The entire structure is enclosed in a protective cover, providing dust and impact protection. As another preferred method, the pressing protrusion is made of an elastic material such as rubber or polyurethane, with an embedded metal core to enhance rigidity; when the angle steel is pressed against it, the protrusion is compressed and deformed, pushing the rotating rod to pivot around the elastic fulcrum. The elastic fulcrum is elastically supported by a spring plate, and the trigger end is designed as a wedge block, which gradually presses the contact of the trigger button during the movement to achieve progressive triggering and avoid malfunctions caused by instantaneous impact.

[0017] Furthermore, the elastic fulcrum is hook-shaped, and the placement platform is provided with a fixed shaft for the elastic fulcrum to engage; the placement platform is provided with a limiting platform for wrapping the fixed end, and the limiting platform is provided with a limiting groove corresponding to the fixed end for it to be inserted into.

[0018] The flexible fulcrum is hook-shaped and snaps onto the fixed shaft, simplifying the installation and disassembly process and facilitating quick replacement or repair of the trigger lever. It also enhances the stability of the fulcrum, preventing loosening or detachment during repeated use. The design of the limiting platform and limiting groove encloses the fixed end, providing mechanical protection and centering, reducing lever offset and wear during movement, and ensuring the accuracy and consistency of the triggering action. This improves the reliability and service life of the entire triggering device. As a preferred embodiment, the hook-shaped flexible fulcrum is made of spring steel, with its hook fitting into the annular groove of the fixed shaft and locked in place by a snap-fit. The fixed shaft is a stainless steel column, vertically mounted on a bracket on the placement platform. The limiting platform is a plastic or metal cover with a square limiting groove inside. After the shaft at the fixed end is inserted, it is secured by a retaining spring to prevent axial movement, ensuring that the lever can only rotate within its designed plane. As another preferred approach, the elastic fulcrum is designed as an adjustable hook structure, including an adjusting screw for micro-fulcrum tension; the fixed shaft is threaded and can be screwed into the base of the placement platform; the limiting platform integrates a guide rail with a dovetail groove, and the fixed end slider slides along the guide rail and is locked by bolts to adapt to the triggering requirements of angle steel of different sizes, thereby enhancing the versatility and adaptability of the system. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a partial enlarged view of the contact point between the trigger lever and the angle steel in an embodiment of the present invention; Figure 3 This is a partial enlarged view of the trigger lever in an embodiment of the present invention. Detailed Implementation

[0020] An embodiment of the present invention provides an intelligent CNC angle steel production line equipment, such as... Figure 1-3 As shown: This includes a conveying mechanism 1 for conveying angle steel 4 and an actuator 2 disposed on the conveying path. The actuator 2 is used for processing operations such as printing and corner cutting on the angle steel 4. Its specific structure, such as stamping and cutting devices, is prior art and will not be described in detail here. The conveying mechanism 1 includes a placement platform 11 for stably placing and supporting the angle steel 4, and a drive assembly 12 for driving the angle steel 4 to move along the length of the placement platform 11. The drive assembly 12 can be, for example, a transmission mechanism such as a motor-driven roller, belt, or chain.

[0021] To ensure stable and reliable automatic control of the production line in harsh environments such as workshops where oil and dust may be present, this embodiment provides mechanical triggering devices 3 at both ends of the conveying mechanism 1. Specifically, a first triggering component 31 is provided on the side of the placement platform 11 away from the actuator 2 (i.e., the feeding end), and a second triggering component (not shown in the figure) is provided on the side of the placement platform 11 closer to the actuator 2 (i.e., the discharging end). The first triggering component 31 and the second triggering component (not shown in the figure) have identical structures, which facilitates spare parts management and maintenance replacement. When the angle steel 4 is placed on the placement platform 11, its end will elastically abut against the corresponding triggering device 3, thereby sending an electrical signal to control the operation of the drive component 12 and the actuator 2.

[0022] Each triggering device 3 includes a trigger button 33 and a corresponding trigger lever 34. The trigger button 33 is, for example, a micro switch or a limit switch. The trigger lever 34 is a key component for achieving mechanical triggering and signal amplification. It is mounted on the placement platform 11 via an elastic fulcrum 343. Specifically, a limiting platform 111 is provided on the end face of the placement platform 11, and a limiting groove is formed on the limiting platform 111. The fixed end 341 of the trigger lever 34 (i.e., the fulcrum of the lever) is placed into the limiting groove, allowing rotation but restricting large displacement. The elastic fulcrum 343 is hook-shaped, with one end engaged with a fixed shaft 112 on the placement platform 11, and the other end connected to the rotating rod 344 of the trigger lever 34. The elastic fulcrum 343 itself is elastic, providing a restoring force for the rotation of the trigger lever 34.

[0023] The trigger lever 34 also includes a trigger end 342 that directly contacts the angle steel 4. A pressing protrusion 345 is provided between the rotating rod 344 and the trigger end 342, facing the angle steel 4. When the angle steel 4 is placed on the placement platform 11 and moved to its end, its end face abuts against and presses the pressing protrusion 345. The distance from the pressing protrusion 345 to the fixed end 341 (fulcrum) constitutes the power arm, while the distance from the trigger end 342 to the fixed end 341 constitutes the resistance arm. This embodiment achieves a lever effect with a multiplied stroke by designing the power arm length to be greater than the resistance arm length. That is, a small displacement at the end of the angle steel 4, after being amplified by the lever, allows the trigger end 342 to produce a large stroke sufficient to reliably press the trigger button 33. The pressing protrusion 345 may undergo slight elastic deformation when pressed by the angle steel 4 to ensure tight contact.

[0024] The working principle of this production line is as follows: In the initial state, the placement platform 11 is empty, and both the drive component 12 and the actuator 2 are in a stopped state.

[0025] First, the angle steel 4 to be processed is placed on the feed end of the placement table 11 by external equipment (such as a gantry crane). During placement, the angle steel 4 is positioned so that its end abuts against the pressing protrusion 345 of the first trigger assembly 31. The pressing protrusion 345 is pushed, forcing the elastic fulcrum 343 to deform, thereby driving the rotating rod 344 to rotate around the fixed end 341, which in turn causes the trigger end 342 to press down the trigger button 33 of the first trigger assembly 31. After the trigger button 33 is pressed, a "start" trigger signal is sent to the control system (such as a PLC) of the drive assembly 12. The drive assembly 12 then starts, driving the angle steel 4 to move at a constant speed along the placement table 11 toward the actuator 2.

[0026] Next, as the front end of the angle steel 4 moves to the discharge end of the placement table 11 and is about to reach the processing position of the actuator 2, its end will abut against the pressing protrusion 345 of the second trigger component (not shown in the figure). Under the same lever principle, the trigger button 33 of the second trigger component (not shown in the figure) is pressed. At this time, the second trigger component (not shown in the figure) sends a "start" trigger signal to the actuator 2. After receiving the signal, the actuator 2 starts in advance (for example, the punch head starts to descend). Since the angle steel 4 is still being conveyed, when it reaches the processing position precisely, the actuator 2 is just ready to perform the action and can immediately perform printing or corner cutting, improving the processing cycle and accuracy.

[0027] Finally, when the tail end of angle steel 4 is completely removed from the placement platform 11 and leaves the pressing protrusion 345 of the second trigger assembly (not shown in the figure), the trigger lever 34 resets under the restoring force of the elastic fulcrum 343, the trigger end 342 leaves the trigger button 33, and the button pops up. The popped-up state of the trigger button 33 (i.e., the disconnect signal) is detected by the second trigger assembly (not shown in the figure), and a "close" trigger signal is immediately sent to the drive assembly 12. The drive assembly 12 stops running and waits for the arrival of the next angle steel 4. This cycle repeats, realizing the fully automated control of angle steel loading, conveying, processing, and unloading.

[0028] The above embodiments are merely one preferred embodiment of the present invention. Ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included within the protection scope of the present invention.

Claims

1. An intelligent CNC angle steel production line equipment, comprising a conveying mechanism for conveying angle steel, wherein an execution mechanism is arranged on the conveying path of the conveying mechanism, the execution mechanism being used for marking and cutting angle steel, the conveying mechanism comprising a placement table for placing angle steel and a driving component for driving the angle steel to move along the length direction of the placement table, characterized in that: Triggering devices are respectively provided at both ends of the conveying mechanism. After the angle steel is placed on the placement platform, the triggering device elastically abuts against the angle steel and sends a trigger signal to control the drive assembly and the actuator. The triggering device includes a first triggering component and a second triggering component. The first triggering component is located on the side of the placement platform away from the actuator and is used to start the drive assembly. The second triggering component is located on the side of the placement platform closer to the actuator and is used to start the actuator and stop the drive assembly. The first triggering component is located on the end face of the placement platform facing the angle steel. The first triggering component includes a trigger button and a trigger lever that cooperates with the trigger button. The two ends of the trigger lever cooperate with the angle steel and the trigger button respectively, and the travel of the trigger button side of the trigger lever is greater than the travel of the angle steel side. The trigger lever includes a fixed end and a trigger end. The structure includes a rotating rod, a flexible fulcrum between the fixed end and the trigger end for moving the trigger end toward the trigger button, one end of the flexible fulcrum being fixed to the placement platform and the other end connected to the rotating rod; a pressing protrusion between the rotating rod and the trigger end, facing the angle steel, is provided, and the pressing protrusion deforms against the angle steel after the angle steel is placed on the placement platform, thereby moving the trigger end toward the trigger button; the flexible fulcrum is hook-shaped, and a fixed shaft is provided on the placement platform for the flexible fulcrum to engage; a limiting platform is provided on the placement platform for wrapping the fixed end, and a limiting groove is provided on the limiting platform corresponding to the fixed end for it to be inserted into; the flexible fulcrum is a torsion spring or a leaf spring; the entire structure is enclosed in a protective cover for dust and impact protection; the pressing protrusion is made of elastic material with an embedded metal core; the trigger end is a wedge-shaped block.

2. The intelligent CNC angle steel production line equipment according to claim 1, characterized in that: The first triggering component and the second triggering component have the same structure.

3. The intelligent CNC angle steel production line equipment according to claim 1, characterized in that: The second triggering component sends a trigger signal to the actuator to start the actuator when the angle steel comes into contact with it, and sends a trigger signal to the drive component to turn off the drive component when the angle steel leaves the contact with it.

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