Sheet metal stamping system and stamping method thereof

Abstract

The invention relates to a metal plate stamping system and a stamping method thereof, in particular to the metal plate stamping system which comprises a stamping device, a feeding device, a conveying device, a recycling device, a parameter detection module and a control module. The parameter detection module is used for obtaining metal plate parameters, operation stamping parameters, conveying parameters and recovery parameters; the control module is electrically connected with the feeding device, the stamping device, the conveying device, the recycling device and the parameter detection module and used for adjusting the working state according to parameters obtained by the parameter detection module. According to the above content, the sheet metal stamping system and the stamping method thereof are provided, and the problems that a sheet metal stamping system in the prior art lacks a unified control module to conduct real-time monitoring and dynamic adjustment on all links, all the devices operate independently, and the cost is low are solved. The problems that the overall operation efficiency of the system is low, and efficient and stable production is difficult to achieve due to the fact that cooperative work cannot be conducted according to overall operation parameters of the system are solved.

Description

Technical Field

[0001] This invention relates to the field of sheet metal stamping technology, and in particular to a sheet metal stamping system and stamping method thereof. Background Technology

[0002] Metal sheet stamping is an important forming process widely used in industrial production. It involves applying pressure to a metal sheet using a stamping device, causing it to undergo plastic deformation under the action of a die, thereby obtaining parts with the desired shape, size, and properties. This processing method has advantages such as high production efficiency, high material utilization, and stable product quality, and is widely used in many industries including automotive manufacturing, electronics, aerospace, and machinery manufacturing.

[0003] However, existing sheet metal stamping systems lack a unified control module for real-time monitoring and dynamic adjustment of each stage. The various devices operate relatively independently and cannot work collaboratively based on the overall system operating parameters, resulting in low overall system efficiency and difficulty in achieving efficient and stable production. Summary of the Invention

[0004] The purpose of this invention is to propose a metal sheet stamping system and its stamping method, which solves the problem that existing metal sheet stamping systems lack a unified control module to monitor and dynamically adjust each link in real time, and the various devices operate relatively independently and cannot work together according to the overall system operating parameters, resulting in low overall system operating efficiency and difficulty in achieving efficient and stable production.

[0005] To achieve this objective, the present invention adopts the following technical solution: A metal sheet stamping system includes a stamping device, a feeding device, a conveying device, a recycling device, a parameter detection module, and a control module; The feeding device is located at the feeding end of the stamping device. The feeding device is used to absorb and feed the metal sheet into the stamping device. The stamping device is used to stamp the metal sheet into shape. The stamping device is provided with a discharge funnel. The discharge end of the discharge funnel is directly opposite the conveying device. The conveying device is used to convey the stamping waste to the recycling device. The feeding device includes a gantry frame, a placement platform, a movable seat, a lifting seat, suction cups, a third drive unit, and a fourth drive unit; the placement platform is located below the gantry frame and is used to place metal sheets; the movable seat is movably mounted on the gantry frame; the third drive unit is used to drive the movable seat to move left and right; the lifting seat is movably mounted on the movable seat and is equipped with multiple suction cups; and the fourth drive unit is used to drive the lifting seat to move up and down. The recycling device includes a first recycling rack, a second recycling rack, a mounting frame, and a first drive unit; The second recycling rack is rotatably mounted on the mounting frame. The first driving unit is used to drive the second recycling rack to rotate. One end of the first recycling rack is located at the discharge end of the conveying device, and the other end of the first recycling rack is located above the inlet end of the second recycling rack. The parameter detection module is used to acquire parameters of the metal sheet, running stamping parameters, conveying parameters, and recycling parameters; The control module is electrically connected to the feeding device, the stamping device, the conveying device, the recycling device, and the parameter detection module, respectively. The control module is used to adjust the working state according to the parameters obtained by the parameter detection module.

[0006] Furthermore, the recycling device also includes a second drive unit, a mounting plate, and a hinge seat; The first drive unit is mounted on the mounting frame, the output end of the first drive unit is mounted on the mounting plate, the mounting plate is mounted on the hinge seat, the second recycling frame is swayably mounted on the hinge seat, and the inlet end of the second recycling frame is provided with a baffle. The second drive unit is used to drive the hinge seat to sway.

[0007] Specifically, the conveying device includes a first conveying section, a second conveying section, a third conveying section, a fourth conveying section, a fifth conveying section, a sixth conveying section, and a seventh conveying section; One end of the first conveying section is located below the material discharge hopper, and the other end of the first conveying section is connected to one end of the second conveying section. The second conveying section is inclined, and the other end of the second conveying section is connected to one end of the third conveying section. The other end of the third conveying section overlaps with one end of the fourth conveying section. The other end of the fourth conveying section is connected to one end of the fifth conveying section. The fifth conveying section is inclined, and the other end of the fifth conveying section is connected to one end of the sixth conveying section. The other end of the sixth conveying section is connected to one end of the seventh conveying section. The seventh conveying section is inclined, and the other end of the seventh conveying section is connected to the inlet end of the first recycling rack.

[0008] Preferably, the parameter detection module includes a sheet metal parameter sensor, a stamping parameter sensor, a conveying parameter sensor, and a recycling parameter sensor; The plate parameter sensor is installed in the feeding device, and the plate parameter sensor is used to detect the thickness and material of the metal plate. The stamping parameter sensor is installed in the stamping device, and the stamping parameter sensor is used to detect the stamping frequency, stamping pressure and stamping stroke; The conveying parameter sensor is installed on the conveying device, and the conveying parameter sensor is used to detect the conveying speed and the conveying load; The recycling parameter sensor is located at the recycling point of the recycling device, and is used to detect the amount of waste filling and the position of the waste cart.

[0009] A stamping method for a metal sheet stamping system includes the following steps: S0: Input preset stamping parameters into the human-machine interface of the control module. The preset stamping parameters include preset stamping pressure, preset stamping stroke and preset stamping frequency. S1: The stack of metal sheets is placed on the placement platform of the feeding device. The control module drives the corresponding placement platform to move along the slide rail to the feeding station. The sheet parameter sensor immediately detects the sheet, obtains the metal sheet parameters and transmits them to the control module. The metal sheet parameters include the thickness and material of the metal sheet. The control module adjusts the vacuum pressure of the suction cup according to the metal sheet parameters. S2: The control module issues a command to move the third drive unit to move the moving seat to directly above the placement table, and the fourth drive unit drives the lifting seat to descend until the suction cup adsorbs the metal sheet and places the metal sheet on the conveyor table of the stamping device. S3: The stamping device starts according to the preset stamping parameters and metal sheet parameters. During the stamping process, the stamping parameter sensor collects the running stamping parameters in real time and feeds them back to the control module. The running stamping parameters include running stamping pressure, running stamping stroke and running stamping frequency. The control module adjusts the stamping device according to the running stamping parameters. The waste generated by stamping falls into the conveying device through the discharge funnel. S4: The conveying device transports the waste to the recycling device. During the conveying process, the conveying parameter sensor collects the conveying parameters in real time and feeds them back to the control module. The conveying parameters include the conveying speed and the conveying load. The control module adjusts the conveying device according to the conveying parameters so that the conveying device matches the production rhythm of the stamping device. S5: After the waste truck stops at the receiving point, the recycling parameter sensor collects the recycling parameters in real time and feeds them back to the control module. The recycling parameters include the position of the waste truck and the amount of waste filling. The control module adjusts the unloading angle of the second recycling rack according to the recycling parameters. During the waste unloading process, the control module adjusts the unloading direction of the second recycling rack according to the recycling parameters.

[0010] Furthermore, in step S1, the suction cup can be adjusted according to the thickness and material of the metal sheet to obtain different vacuum pressure levels, as shown in the table below:

[0011] The vacuum levels are ranked as follows: First vacuum level < Second vacuum level < Third vacuum level < Fourth vacuum level < Fifth vacuum level.

[0012] Specifically, in step S3, when the stamping device is started, it can be adjusted according to the metal sheet parameters and preset stamping parameters to obtain different initial grades, as shown in the table below:

[0013] Among them, the first initial level < the second initial level < the third initial level < the fourth initial level < the fifth initial level.

[0014] Preferably, in step S3, when the stamping device is stamping, the initial grade can be adjusted according to the operating stamping pressure, operating stamping stroke, and operating stamping frequency, including the following sub-steps: If the operating stamping pressure is greater than or equal to the second threshold and the operating stamping pressure is less than or equal to the first threshold, then the initial level is maintained; If the operating stamping pressure remains higher than the first threshold and the operating stamping stroke remains greater than the upper limit of the stamping stroke of the initial level, then the first level adjustment is executed; If the operating stamping pressure remains above the first threshold and the operating stamping frequency remains below the lower limit of the initial stamping frequency, then the first-level adjustment is executed. If the operating stamping pressure remains below the second threshold and the operating stamping stroke remains below the lower limit of the stamping stroke of the initial level, then the second level adjustment is executed. If the operating stamping pressure remains below the second threshold and the operating stamping frequency remains above the upper limit of the stamping frequency of the initial level, then the second level adjustment is executed.

[0015] In some embodiments, in step S4, the conveying device can be adjusted according to the conveying speed and conveying load to obtain different conveying levels, including the following steps: Obtain the conveying speed and conveying load; If the conveying speed is within the target speed range of the current conveying level, and the conveying load is greater than or equal to the fourth threshold and less than or equal to the third threshold, then the conveying level is maintained. If the conveying speed remains below the lower limit of the target speed range for the current conveying level, and the conveying load remains above the third threshold, then the third-level adjustment will be executed. If the conveying speed consistently reaches the upper limit of the target speed range for the current conveying level, and the conveying load remains below the fourth threshold, then the fourth level adjustment will be executed.

[0016] Compared with the prior art, one of the above technical solutions has the following beneficial effects: By setting up parameter detection and control modules, the system achieves real-time acquisition and dynamic adjustment of operating parameters. The feeding device adopts a dual-platform alternating feeding system and adjusts the suction cup adsorption pressure according to the sheet metal parameters. Combined with the slide rail design, it improves the accuracy and continuity of feeding, eliminating the need to stop the machine to wait for refills. The speed of the conveying device can be dynamically adjusted according to the stamping frequency to avoid waste accumulation or empty conveying, ensuring that waste conveying is synchronized with the stamping process. Furthermore, the recycling device detects the waste cart filling amount through recycling parameter sensors and automatically switches the waste receiving station without stopping the machine to change boxes, achieving continuous waste recycling and significantly improving stamping efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a metal sheet stamping system according to one embodiment of the present invention; Figure 2 This is a schematic diagram of the layout structure of the feeding device, stamping device, conveying device and recycling device according to one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a baffle according to one embodiment of the present invention; Figure 4 This is a schematic diagram of the hinge base and mounting plate according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a conveying device according to one embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a feeding device according to one embodiment of the present invention; Figure 7 This is a schematic diagram of the suction cup structure according to one embodiment of the present invention; The components include: stamping device 1, feeding device 2, gantry frame 21, placement platform 22, limiting component 221, moving seat 23, lifting seat 24, suction cup 25, conveying device 3, first conveying section 31, second conveying section 32, third conveying section 33, fourth conveying section 34, fifth conveying section 35, sixth conveying section 36, seventh conveying section 37, recycling device 4, first unloading rack 41, unloading cover 411, second unloading rack 42, baffle 421, mounting frame 43, first drive unit 44, second drive unit 45, mounting plate 46, hinge seat 47, parameter detection module 5, and control module 6. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In one embodiment of the present invention, such as Figure 1-7As shown, a metal sheet stamping system includes a stamping device 1, a feeding device 2, a conveying device 3, a recycling device 4, a parameter detection module 5, and a control module 6. The feeding device 2 is located at the feeding end of the stamping device 1 and is used to absorb and feed the metal sheet onto the stamping device 1. The stamping device 1 is used to stamp the metal sheet into shape. The stamping device is equipped with a discharge funnel, the discharge end of which is directly opposite the conveying device 3. The conveying device 3 is used to transport stamping waste to the recycling device 4. The feeding device 2 includes a gantry frame 21, a placement platform 22, a movable seat 23, a lifting seat 24, a suction cup 25, a third drive unit, and a fourth drive unit. The placement platform 22 is located below the gantry frame 21 and is used to place the metal sheet. The movable seat 23 is movably mounted on the gantry frame 21. The third drive unit is used to drive the movable seat 23 to move left and right. The lifting seat 24... The lifting seat 24 is movably installed on the movable seat 23 and is equipped with multiple suction cups 25. The fourth drive unit is used to drive the lifting seat 24 to move up and down. The recycling device 4 includes a first recycling frame 41, a second recycling frame 42, a mounting frame 43, and a first drive unit 44. The second recycling frame 42 is rotatably installed on the mounting frame 43. The first drive unit 44 is used to drive the second recycling frame 42 to rotate. One end of the first recycling frame 41 is located at the discharge end of the conveying device 3, and the other end of the first recycling frame 41 is located above the inlet end of the second recycling frame 42. The parameter detection module 5 is used to acquire metal sheet parameters, running stamping parameters, conveying parameters, and recycling parameters. The control module 6 is electrically connected to the feeding device 2, the stamping device 1, the conveying device 3, the recycling device 4, and the parameter detection module 5, respectively. The control module is used to adjust the working state according to the parameters acquired by the parameter detection module 5. In this embodiment, the stamping device 1 is existing technology, a commercially available stamping equipment. The metal sheet parameters include, but are not limited to, the thickness, material, and quantity of the metal sheet. The stamping operation parameters include, but are not limited to, stamping frequency, stamping pressure, and stamping stroke. The conveying parameters include, but are not limited to, conveying speed. The recycling parameters include, but are not limited to, the amount of waste material filled. The control module 6 is a PLC controller. The third drive unit is a structure consisting of an electric cable chain, a servo motor, and a ball screw. The fourth drive unit is a cylinder. A conveying platform for the stamping device 1 is located below the middle of the gantry frame 21. Slide rails are located below the left and right ends of the gantry frame 21. There are two placement platforms 22, two moving seats 23, two lifting seats 24, two third drive units, and two fourth drive units. The two placement platforms 22 are slidably mounted on the slide rails. Each placement platform is equipped with a limiting member 221, which allows for the positioning and placement of a stack of metal sheets for precise subsequent feeding. The first recycling rack 41 is installed on the frame of the conveying device 3.Four scrap carts are parked around the outer periphery of the mounting frame 43, and the four scrap carts are evenly spaced along the circumference of the mounting frame 43. The first drive unit 44 is mounted on the mounting frame 43. The first drive unit 44 is a rotary cylinder. The output end of the first drive unit 44 is connected to the second recycling rack 42. The two placement platforms 22 are driven to move by corresponding third drive units. The two movable seats 23 are respectively mounted on the front and rear sides of the gantry frame 21. During operation, the third drive unit drives the movable seats 23 to move above the placement platforms 22. Then, the fourth drive unit drives the lifting seat 24 to move downward and picks up the metal sheet through multiple suction cups 25. Then, it rises and resets, and the third drive unit loads the metal sheet. The metal sheet is stamped onto the conveyor table of the stamping device 1. During the stamping process, the waste material generated slides from the discharge funnel to one end of the conveyor device 3 below it. The conveyor device 3 then transports the stamping waste to the recycling device 4 at its discharge end. Specifically, the waste material enters the first recycling rack 41 from the discharge end of the conveyor device 3, then enters the second recycling rack 42 from the discharge end of the first recycling rack 41, and is discharged into a scrap cart from the discharge end of the second recycling rack 42. If one scrap cart is full, the first drive unit 44 can drive the second recycling rack 42 to rotate, specifically by 90°, so that the discharge end of the second recycling rack 42 rotates above another adjacent scrap cart and continues... In the stamping process of the metal sheet, the suction force of the suction cup 25 is adjusted according to the obtained metal sheet parameters, such as the material and thickness of the sheet. Thin sheets require low pressure to prevent damage, while thick sheets require high pressure to prevent them from falling off, thus avoiding sheet drop or damage. Furthermore, in conjunction with the slide rail design of the dual placement tables 22, sheet parameters (such as the remaining sheet quantity) can assist the control module 6 in determining when to switch placement tables 22 (automatically driving the right table into the working position when the left table runs out of sheet material), eliminating the need to stop the machine and wait for manual replenishment, thus improving feeding efficiency. Based on the operating stamping parameters and conveying parameters, such as the stamping frequency directly determining the scrap generation speed, the control module 6 can dynamically adjust the drive motor speed of the conveying device according to these parameters to ensure that scrap generation matches the conveying speed, preventing... Slow conveying can cause waste material to accumulate and clog the discharge hopper or conveying section, while excessively fast conveying will not waste energy. The stamping pressure and stroke parameters can be monitored in real time to ensure the stamping process is normal. If the pressure exceeds the threshold, control module 6 will issue an overload warning and reduce the stamping speed to prevent damage to the mold and stamping device's mechanical structure due to overload. If the stroke deviates, it indicates mold wear or equipment failure, prompting timely shutdown for maintenance to prevent the production of batches of defective stamped parts. Based on recycling parameters, such as waste material filling volume, the waste cart filling volume parameter (e.g., weight reaching 50kg) serves as a trigger signal for switching workstations: when the current waste cart is detected to be full, control module 6 drives it to rotate to the empty waste cart station. The entire process requires no downtime for manual removal of full carts and replacement with empty carts, making it convenient and fast.High recycling efficiency; this invention achieves real-time acquisition and dynamic adjustment of system operating parameters through the setting of parameter detection module 5 and control module 6. The feeding device 2 uses dual placement platforms 22 for alternating feeding, and adjusts the suction pressure of the suction cups according to the sheet parameters. Combined with the slide rail design, it improves the accuracy and continuity of feeding, eliminating the need to stop the machine to wait for refilling. The speed of the conveying device 3 can be dynamically adjusted according to the stamping frequency, avoiding waste accumulation or empty conveying, and ensuring that waste conveying is synchronized with the stamping process. Furthermore, the recycling device 4 detects the filling amount of the waste cart through recycling parameter sensors and automatically switches the waste receiving station, eliminating the need to stop the machine to change boxes, achieving continuous waste recycling, and significantly improving stamping efficiency.

[0021] like Figure 3-4As shown, the recycling device 4 further includes a second drive unit 45, a mounting plate 46, and a hinge seat 47; the first drive unit 44 is mounted on the mounting frame 43, the output end of the first drive unit 44 is mounted on the mounting plate 46, the mounting plate 46 is mounted on the hinge seat 47, the second recycling frame 42 is swayably mounted on the hinge seat 47, and the feed end of the second recycling frame 42 is provided with a baffle 421, and the second drive unit 45 is used to drive the hinge seat 47 to sway. In this embodiment, the second drive unit 45 is mounted on the mounting plate 46. The second drive unit 45 is a telescopic cylinder. The output end of the second drive unit 45 is hinged to the bottom surface of the discharge end of the second recycling rack 42. During operation, according to the recycling parameters, when the waste filling amount reaches a set value, the output shaft of the second drive unit 45 extends, causing the discharge end of the second recycling rack 42 to swing upward along the hinge seat 47, making the discharge end of the second recycling rack 42 higher than the inlet end, preventing waste from falling from the discharge end. Furthermore, its inlet end is equipped with a baffle 421 to prevent waste from falling from the inlet end. Simultaneously, the first drive unit 44 drives the mounting plate 46 at its output end to rotate. The mounting plate 46 drives the second recycling rack through the hinge seat 47. The second recycling rack 42 rotates to the loading area of ​​another waste cart. Then, the second drive unit 45 drives the discharge end of the second recycling rack 42 to swing downwards and reset, continuing to drop waste into the waste cart. This prevents waste from falling to the ground while the second recycling rack 42 is rotating to another waste cart, and the conveying device 3 can continue to work without stopping to wait, which helps to improve the recycling efficiency of waste. Furthermore, according to the recycling parameters, such as the recycling distance parameter (the distance between the discharge end of the second recycling rack and the waste cart), the swing angle of the second drive unit 45 can be adjusted to ensure that the waste falls accurately into the waste cart, avoids waste spilling on the ground due to distance deviation, reduces manual cleaning costs, and ensures a clean recycling environment. Preferably, the inlet end of the first recycling rack 41 is installed on the frame of the conveying device 3, and the outlet end of the first recycling rack 41 is provided with a discharge cover 411. The discharge port of the discharge cover 11 is directly above the inlet end of the second recycling rack 42. The discharge cover 11 can prevent waste from sliding off the outlet end of the first recycling rack 41 and flying out to the outside, which is safe and reliable and ensures that waste can be transferred from the first recycling rack 41 to the second recycling rack 42.

[0022] like Figure 5As shown, the conveying device 3 includes a first conveying section 31, a second conveying section 32, a third conveying section 33, a fourth conveying section 34, a fifth conveying section 35, a sixth conveying section 36, and a seventh conveying section 37. One end of the first conveying section 31 is located below the material discharge hopper, and the other end of the first conveying section 31 is connected to one end of the second conveying section 32. The second conveying section 32 is inclined, and the other end of the second conveying section 32 is connected to one end of the third conveying section 33. The other end of the third conveying section 33 overlaps with one end of the fourth conveying section 34. The other end of the fourth conveying section 34 is connected to one end of the fifth conveying section 35. The fifth conveying section 35 is inclined, and the other end of the fifth conveying section 35 is connected to one end of the sixth conveying section 36. The other end of the sixth conveying section 36 is connected to one end of the seventh conveying section 37. The seventh conveying section 37 is inclined, and the other end of the seventh conveying section 37 is connected to the inlet end of the first recycling rack 41. In this embodiment, the second conveying section 32, the fifth conveying section 35, and the seventh conveying section 37 are all upwardly inclined conveying sections. The sixth conveying section 36, the seventh conveying section 37, and the first recycling rack 41 are specifically installed on a height frame. During operation, the waste material generated by the stamping device 1 falls through the discharge funnel to the first conveying section 31, and is then conveyed along the second conveying section 32, the third conveying section 33, the fourth conveying section 34, the fifth conveying section 35, the sixth conveying section 36, and the seventh conveying section 37 to the first recycling rack 41. This is convenient and fast, and by extending the conveying process, there is sufficient time to deal with emergencies, avoiding the accumulation of waste material during transportation.

[0023] like Figure 1-2As shown, the parameter detection module 5 includes a sheet metal parameter sensor, a stamping parameter sensor, a conveying parameter sensor, and a recycling parameter sensor. The sheet metal parameter sensor is located on the feeding device 2 and is used to detect the thickness and material of the metal sheet. The stamping parameter sensor is located on the stamping device 1 and is used to detect the stamping frequency, stamping pressure, and stamping stroke. The conveying parameter sensor is located on the conveying device 3 and is used to detect the conveying speed and conveying load. The recycling parameter sensor is located at the recycling point of the recycling device 4 and is used to detect the amount of waste material filled and the position of the waste cart. In this embodiment, the sheet metal parameter sensor is a laser rangefinder and a material identification sensor. During operation, a stack of metal sheets is placed on the placement platform 22. The number of metal sheets placed in the stack is constant each time, so the thickness and remaining quantity can be measured by the laser rangefinder. The stamping parameter sensor is a frequency counter, a pressure sensor, and a displacement sensor. The conveying parameter sensor is an encoder and a torque sensor. The torque sensor is installed on the output shaft of the drive motor or the transmission chain of the conveying device to directly measure the torque output by the motor. The greater the load, the greater the torque required by the motor. For example, when waste is piled up, the motor needs to rotate with more effort, and the torque increases. The smaller the load, the smaller the torque. The torque data can directly reflect the load size. The encoder is installed on the shaft of the drive motor. The recycling parameter sensor is located at the waste truck corresponding to the recycling device, for example, the waste truck is parked on a weighbridge. The recycling parameter sensor is a weight sensor and an infrared rangefinder.

[0024] like Figure 1-2As shown, a stamping method for a metal sheet stamping system includes the following steps: S0: Input preset stamping parameters into the human-machine interface of the control module 6. The preset stamping parameters include preset stamping pressure, preset stamping stroke, and preset stamping frequency; S1: Place the stack of metal sheets on the placement table 22 of the feeding device 2. The control module 6 drives the corresponding placement table 22 to move along the slide rail to the feeding station. The sheet parameter sensor immediately detects the sheet, obtains the metal sheet parameters, and transmits them to the control module 6. The metal sheet parameters include the thickness and material of the metal sheet. The control module 6 adjusts the vacuum pressure of the suction cup 25 according to the metal sheet parameters; S2: The control module 6 issues a command to drive the third drive unit to move the moving seat 23 to directly above the placement table 22. The fourth drive unit drives the lifting seat 24 to descend until the suction cup 25 adsorbs the metal sheet and places the metal sheet on the conveying table of the stamping device 1; S3: The stamping device 1 starts according to the preset stamping parameters and the metal sheet parameters, and the stamping process... During the process, the stamping parameter sensor collects the running stamping parameters in real time and feeds them back to the control module 6. The running stamping parameters include the running stamping pressure, running stamping stroke, and running stamping frequency. The control module 6 adjusts the stamping device 1 according to the running stamping parameters. The waste generated by stamping falls into the conveying device 3 through the discharge funnel. S4: The conveying device 3 transports the waste to the recycling device 4. During the conveying process, the conveying parameter sensor collects the conveying parameters in real time and feeds them back to the control module 6. The conveying parameters include the conveying speed and the conveying load. The control module 6 adjusts the conveying device 3 according to the conveying parameters to make the conveying device 3 match the production rhythm of the stamping device 1. S5: After the waste cart stops at the receiving point, the recycling parameter sensor collects the recycling parameters in real time and feeds them back to the control module 6. The recycling parameters include the position of the waste cart and the amount of waste filling. The control module 6 adjusts the unloading angle of the second recycling rack 42 according to the recycling parameters. During the waste unloading process, the control module 6 adjusts the unloading direction of the second recycling rack 42 according to the recycling parameters.In this embodiment, in step S1, the control module 6 drives the placement platform to move along the slide rail to the loading station without manual intervention. It also acquires parameters such as the thickness and material of the metal sheet through the sheet parameter sensor and transmits these parameters to the control module 6. The control module 6 adjusts the vacuum pressure of the suction cup accordingly. This precise adjustment ensures that thin sheets are adsorbed at low pressure to prevent damage due to excessive suction, while thick sheets are adsorbed at high pressure to avoid detachment due to insufficient suction. This effectively protects the integrity of the metal sheet during the adsorption and loading process, improves the quality and reliability of loading, and reduces production interruptions and material waste caused by sheet damage. In step S2, the third and fourth drive units work together to precisely place the metal sheet on the conveyor table of the stamping device. In step S3, the stamping device performs stamping operations based on preset parameters and real-time collected parameters. Specifically, the stamping parameter sensor collects parameters such as the running stamping pressure, running stamping stroke, and running stamping frequency in real time and feeds them back to the control module 6. The control module 6 adjusts accordingly to obtain different levels of stamping. This real-time monitoring and dynamic adjustment mechanism can promptly detect abnormalities in the stamping process, such as pressure exceeding thresholds or stroke deviations, and quickly make adjustments to prevent damage to the mechanical structure of the mold and stamping device due to overload. It also prevents batch defects in stamped parts caused by mold wear or equipment failure, ensuring the stability of the stamping process and product quality. In step S4, the conveying device automatically adjusts the conveying speed according to the stamping rhythm. Furthermore, the conveying parameter sensor collects parameters such as conveying speed and load in real time and feeds them back to the control module 6. The control module 6 adjusts the conveying device based on these parameters, ensuring precise matching between the conveying device and the production rhythm of the stamping device. This prevents waste material from accumulating and clogging in the discharge hopper or conveying section due to excessively slow conveying, thus affecting production continuity; and also prevents energy waste due to excessively fast conveying, achieving efficient resource utilization and further improving overall production efficiency. In step S5, the recycling device automatically adjusts the discharge angle and direction according to the waste cart situation. The system operates with close coordination across all stages, boasting a high degree of automation. This significantly improves production efficiency and reduces labor costs. Parameter sensors collect real-time data on the waste cart's position and waste filling level, feeding this information back to control module 6. Control module 6 then adjusts the unloading angle and direction of the second recycling rack based on these parameters. When the waste cart is full, the system automatically switches to a different waste receiving station without requiring machine downtime for bin replacement, enabling continuous waste recycling and greatly improving recycling efficiency. Simultaneously, adjusting the unloading angle and direction ensures precise waste placement into the waste cart, preventing spillage and reducing manual cleaning costs. This maintains a clean recycling environment and facilitates the management and maintenance of the production site.

[0025] In step S1, the suction cup 25 can be adjusted according to the thickness and material of the metal sheet to obtain different vacuum pressure levels, as shown in the table below:

[0026] The vacuum levels are ranked as follows: First vacuum level < Second vacuum level < Third vacuum level < Fourth vacuum level < Fifth vacuum level. In this embodiment, the first vacuum level ranges from -25 kPa to -35 kPa, the second vacuum level ranges from -35 kPa to -45 kPa, the third vacuum level ranges from -45 kPa to -55 kPa, the fourth vacuum level ranges from -55 kPa to -65 kPa, and the fifth vacuum level ranges from -65 kPa to -80 kPa. The control module 6 automatically identifies the material and thickness of the metal sheet and matches the corresponding vacuum pressure level. For soft or easily damaged surfaces such as aluminum sheets and galvanized sheets, the system automatically adopts a lower first or second vacuum level pressure, fundamentally avoiding... The system significantly improves product surface quality and yield, addressing issues such as indentations, scratches, or coating damage caused by excessive adsorption pressure. For heavy or smooth materials like stainless steel and thick plates, the system can apply fourth or fifth vacuum level pressure, ensuring that the plates do not slip, fall off, or shift position due to insufficient adsorption force during handling, alignment, and stamping. This not only guarantees stamping accuracy but also eliminates production interruptions or safety hazards, improving the stability and reliability of the entire system. It automatically adapts to different production tasks and material changes without manual pressure adjustment. When facing flexible production demands for multiple varieties and small batches, the system responds quickly, instantly adapting the adsorption pressure configuration based on the material and thickness parameters of the incoming materials, significantly reducing equipment setup time and improving production efficiency.

[0027] In step S3, when stamping device 1 is started, it can be adjusted according to the metal sheet parameters and preset stamping parameters to obtain different initial grades, as shown in the table below:

[0028] The initial grade is ranked as follows: First Initial Grade < Second Initial Grade < Third Initial Grade < Fourth Initial Grade < Fifth Initial Grade. In this embodiment, the stamping pressure range of the first initial grade is 50-200kN, the stamping stroke range is 10-25mm, and the stamping frequency is 60-100 SMPM (times / minute). The first initial grade is used for thin and soft materials that do not require deep drawing, employing a small stroke and high frequency to achieve high-speed production. The stamping pressure range of the second initial grade is 200-400kN, the stamping stroke range is 25-40mm, and the stamping frequency is 40-60 SMPM. The second initial grade is used for medium-demand applications, achieving a balance between pressure, stroke, and frequency to ensure quality and efficiency. The stamping pressure range of the third initial grade is... The first initial stage has a stamping pressure range of 400-600kN, a stamping stroke range of 40-60mm, and a stamping frequency of 20-40 SMPM. The third initial stage is used when greater force is needed to overcome material strength; the stroke may increase, therefore the frequency is reduced. The fourth initial stage has a stamping pressure range of 600-800kN, a stamping stroke range of 60-100mm, and a stamping frequency of 10-20 SMPM. The fourth initial stage is used for thick, high-strength materials, requiring extremely high pressure and a long stroke to ensure forming; the equipment operates slowly, and the frequency is the lowest. Stamping frequency (SPM) is a direct and universal indicator of production efficiency. This solution achieves accurate prediction and maximization of production cycle time by automatically matching the optimal frequency for different tasks, greatly facilitating production planning and management. Precise control of the stamping stroke avoids ineffective idle movements, saving cycle time. Meanwhile, by linking the stroke with pressure and material thickness, the sufficiency and consistency of the deep drawing or punching process are ensured, and material flow and springback are effectively controlled. Furthermore, by coordinating the control of rated punching pressure and punching stroke, the energy output of the equipment is ensured to be precisely matched with the energy required for workpiece forming.

[0029] In step S3, when the stamping device 1 is stamping, the initial level can be adjusted according to the operating stamping pressure, operating stamping stroke, and operating stamping frequency, including the following sub-steps: if the operating stamping pressure is greater than or equal to the second threshold and the operating stamping pressure is less than or equal to the first threshold, the initial level is maintained; if the operating stamping pressure is continuously higher than the first threshold and the operating stamping stroke is continuously greater than the upper limit of the stamping stroke of the initial level, the first level adjustment is performed; if the operating stamping pressure is continuously higher than the first threshold and the operating stamping frequency is continuously lower than the lower limit of the stamping frequency of the initial level, the first level adjustment is performed; if the operating stamping pressure is continuously lower than the second threshold and the operating stamping stroke is continuously less than the lower limit of the stamping stroke of the initial level, the second level adjustment is performed; if the operating stamping pressure is continuously lower than the second threshold and the operating stamping frequency is continuously higher than the upper limit of the stamping frequency of the initial level, the second level adjustment is performed. In this embodiment, the first threshold is 90% to 98% of the upper limit of the stamping pressure range of the current initial level, and the second threshold is 80% to 85% of the lower limit of the stamping pressure range of the current initial level. The first level adjustment is based on the current initial level and adjusted upward by one level, for example, the first initial level is adjusted to the second initial level. The second level adjustment is based on the current initial level and adjusted downward by one level, for example, the third initial level is adjusted to the second initial level. By comparing the running stamping pressure, running stamping stroke, running stamping frequency and the preset range of the initial level in real time, the system can immediately and automatically adjust the appropriate stamping level when the material properties fluctuate or the working conditions change slightly. This dynamic feedback control mechanism effectively compensates for the impact caused by batch differences in sheet metal, slight wear of the mold, or changes in lubrication, ensuring that the stamping energy, forming depth and production cycle of each workpiece are kept in the optimal range, thereby greatly ensuring the high consistency and reliability of mass-produced products.

[0030] In step S4, the conveying device 3 can be adjusted according to the conveying speed and the conveying load to obtain different conveying levels, including the following steps: obtaining the conveying speed and the conveying load; if the conveying speed is within the target speed range of the current conveying level, and the conveying load is greater than or equal to the fourth threshold and less than or equal to the third threshold, then the conveying level is maintained; if the conveying speed is continuously lower than the lower limit of the target speed range of the current conveying level, and the conveying load is continuously higher than the third threshold, then the third level adjustment is performed; if the conveying speed continuously and stably reaches the upper limit of the target speed range of the current conveying level, and the conveying load is continuously less than the fourth threshold, then the fourth level adjustment is performed. In this embodiment, the target speed range of the first conveying level is 80-120 m / min, suitable for light load conditions; the target speed range of the second conveying level is 50-80 m / min, suitable for standard load conditions; and the target speed range of the third conveying level is 20-50 m / min, suitable for heavy load conditions. The third level adjustment is to adjust upwards by one level based on the current conveying level, for example, adjusting the first conveying level to the second conveying level. The fourth level adjustment is to adjust downwards by one level based on the current conveying level, for example, adjusting the third conveying level to the second conveying level. The third threshold is 85% to 95% of the preset load capacity upper limit of the current conveying level, and the fourth threshold is 50% to 70% of the preset load capacity upper limit of the current conveying level. By acquiring the conveying speed and conveying load parameters in real time, a multi-dimensional conveying level adjustment mechanism is established, enabling the conveying device 3 to accurately match the requirements of different working conditions such as light load, standard load, and heavy load, avoiding conveying jams and equipment damage caused by overload; and achieving stable and efficient conveying under different working conditions.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A metal sheet stamping system, characterized by: The punch device, the feeding device, the conveying device, the recycling device, the parameter detection module and the control module are included. The feeding device is arranged at the feeding end of the punch device, and is used for adsorbing and feeding the metal plate to the punch device. The feeding device includes a portal frame, a placing table, a moving seat, a lifting seat, a suction cup, a third driving part and a fourth driving part. The recycling device includes a first recycling frame, a second recycling frame, a mounting frame and a first driving part. The second recycling frame is rotatably arranged on the mounting frame, and the first driving part is used for driving the second recycling frame to rotate. The parameter detection module is used for acquiring the parameters of the metal plate, the operation punch parameters, the conveying parameters and the recycling parameters. The control module is electrically connected with the feeding device, the punch device, the conveying device, the recycling device and the parameter detection module, and is used for adjusting the working state according to the parameters acquired by the parameter detection module.

2. The sheet metal stamping system of claim 1, wherein: The recycling device further includes a second driving part, a mounting plate and a hinged seat. The first driving part is arranged on the mounting frame, and the output end of the first driving part is provided with the mounting plate.

3. The sheet metal stamping system of claim 1, wherein: The conveying device includes a first conveying section, a second conveying section, a third conveying section, a fourth conveying section, a fifth conveying section, a sixth conveying section and a seventh conveying section. The parameter detection module includes a plate parameter sensor, a punch parameter sensor, a conveying parameter sensor and a recycling parameter sensor.

4. The sheet metal stamping system of claim 1, wherein: ​ The plate parameter sensor is arranged on the feeding device, and is used for detecting the thickness of the metal plate and the material of the metal plate; The stamping parameter sensor is arranged on the stamping device, and is used for detecting the stamping frequency, the stamping pressure and the stamping stroke; The conveying parameter sensor is arranged on the conveying device, and is used for detecting the conveying speed and the conveying load; The recycling parameter sensor is arranged at the recycling position of the recycling device, and is used for detecting the waste filling amount and the position of the waste vehicle.

5. A method of stamping using a metal sheet stamping system according to any one of claims 1 to 4, characterized in that, The method comprises the following steps: S0: inputting preset stamping parameters on the human-computer interaction interface of the control module, wherein the preset stamping parameters comprise a preset stamping pressure, a preset stamping stroke and a preset stamping frequency; S1: placing the whole stack of metal plates on the placing table of the feeding device, driving the corresponding placing table to move to the feeding station along the slide rail, immediately detecting the plates by the plate parameter sensor, obtaining the metal plate parameters and transmitting the metal plate parameters to the control module, wherein the metal plate parameters comprise the thickness of the metal plate and the material of the metal plate, and adjusting the vacuum pressure of the suction cup according to the metal plate parameters; S2: the control module sends an instruction to drive the third driving part to drive the moving seat to move to the top of the placing table, the fourth driving part drives the lifting seat to descend until the suction cup adsorbs the metal plate, and the metal plate is placed on the conveying table of the stamping device; S3: the stamping device is started according to the preset stamping parameters and the metal plate parameters, during the stamping process, the stamping parameter sensor collects the running stamping parameters in real time and feeds back to the control module, the running stamping parameters comprise a running stamping pressure, a running stamping stroke and a running stamping frequency, the control module adjusts the stamping device according to the running stamping parameters, and the waste produced by stamping falls into the conveying device through the falling funnel; S4: the conveying device conveys the waste to the recycling device, during the conveying process, the conveying parameter sensor collects the conveying parameters in real time and feeds back to the control module, the conveying parameters comprise a conveying speed and a conveying load, the control module adjusts the conveying device according to the conveying parameters, so that the production rhythm of the conveying device and the stamping device is adapted; S5: after the waste vehicle stops at the material receiving position, the recycling parameter sensor collects the recycling parameters in real time and feeds back to the control module, the recycling parameters comprise the position of the waste vehicle and the waste filling amount, the control module adjusts the unloading angle of the second recycling frame according to the recycling parameters, and during the waste unloading process, the control module adjusts the unloading direction of the second recycling frame according to the recycling parameters.

6. The method of punching according to claim 5, wherein In the S1 step, the suction cup can be adjusted according to the thickness of the metal plate and the material of the metal plate to obtain different vacuum pressure levels, as shown in the following table: Wherein, the first vacuum level < the second vacuum level < the third vacuum level < the fourth vacuum level < the fifth vacuum level.

7. The method of punching according to claim 5, wherein In the S3 step, the stamping device can be adjusted according to the metal plate parameters and the preset stamping parameters when starting to obtain different initial levels, as shown in the following table: Wherein, the first initial level < the second initial level < the third initial level < the fourth initial level < the fifth initial level.

8. The method of punching according to claim 7, wherein In the S3 step, the stamping device is punched, and the initial level can be adjusted according to the running stamping pressure, the running stamping stroke and the running stamping frequency, including the following sub-steps: If the running stamping pressure is greater than or equal to the second threshold value, and the running stamping pressure is less than or equal to the first threshold value, the initial level is maintained; If the running stamping pressure continues to be higher than the first threshold value, and the running stamping stroke continues to be greater than the upper limit of the stamping stroke of the initial level, the first level adjustment is performed; If the running stamping pressure continues to be higher than the first threshold value, and the running stamping frequency continues to be lower than the lower limit of the stamping frequency of the initial level, the first level adjustment is performed; If the running stamping pressure continues to be lower than the second threshold value, and the running stamping stroke continues to be less than the lower limit of the stamping stroke of the initial level, the second level adjustment is performed; If the running stamping pressure continues to be lower than the second threshold value, and the running stamping frequency continues to be higher than the upper limit of the stamping frequency of the initial level, the second level adjustment is performed.

9. The method of claim 5, wherein the method further comprises: In the S4 step, the conveying device can be adjusted according to the conveying speed and the conveying load to obtain different conveying levels, including the following steps: Obtain the conveying speed and the conveying load; If the conveying speed is within the target speed range of the current conveying level, and the conveying load is greater than or equal to the fourth threshold value and the conveying load is less than or equal to the third threshold value, the conveying level is maintained; If the conveying speed continues to be lower than the lower limit of the target speed range of the current conveying level, and the conveying load continues to be higher than the third threshold value, the third level adjustment is performed; If the conveying speed continues to be stable to reach the upper limit of the target speed range of the current conveying level, and the conveying load continues to be less than the fourth threshold value, the fourth level adjustment is performed.

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