Stamping die automation simulation device

Abstract

The present invention relates to the technical field of automobile stamping die automation devices, and specifically refers to a stamping die automation simulation device. It comprises a condition simulator for simulating the operating parameters of each die automation device in the stamping line; a central processing unit for processing the simulation signal sent by the condition simulator and issuing corresponding instructions; an air circuit execution unit for receiving the instructions sent by the central processing unit to control the operation of the die automation device; a signal receiving unit for receiving the operating signal of each die automation device in the stamping line and sending it to the central processing unit; a human-computer interaction unit for staff to operate the condition simulator and monitor the operating signal; and a communication unit for data and signal transmission between the condition simulator, the central processing unit, the air circuit execution unit, the signal receiving unit and the human-computer interaction unit. The device of the present invention can completely replace the stamping line to realize die automation debugging, reducing testing time and work intensity.

Description

Technical Field

[0001] The invention relates to the technical field of automobile stamping die automation devices, in particular to a stamping die automation simulation device. Background Art

[0002] In the field of automotive stamping, stamping dies (hereinafter referred to as dies) are the key link in stamping operations. Mold automation is the abbreviation for the automatic movement of the internal structure of the mold during stamping to achieve a specific stamping process (according to its function, it can be divided into: switching mechanism, positioning mechanism, ejection mechanism, punching, hemming, shearing, etc.). When the stamping die is produced online, the stamping line control system controls the automatic movement of the corresponding solenoid valve group. The solenoid valve group is connected to the air circuit of the internal automation structure of the mold to control the movement of the cylinder and other actuators inside the mold, and promotes the movement of the ejection device, wedge and other structures in the mold to achieve functions such as mold flanging, forming and ejection. There are generally multiple automation devices inside the mold. The stamping process is completed by continuously controlling different automation devices to perform sequential or synchronous actions at different time nodes. Therefore, the movement of the mold automation device is required to be stable, smooth, and precise in timing;

[0003] When a stamping die is newly introduced and after routine maintenance, cleaning, inspection, and repair, the mold automation needs to be tested to determine whether the automated devices within the mold are functioning properly. Currently, offline testing of mold automation requires the cooperation of multiple people. The operation of a mold automation device is tested by manually plugging and unplugging the air circuit connectors of the mold-related automation devices. However, manual operation requires the cooperation of multiple people and frequent manual switching of air circuits, which is labor-intensive and inefficient. Furthermore, it is impossible to fully simulate the sequential, intermittent, coordinated, smooth, and timed movements of multiple mold automation devices that are consistent with the beat and timing of the stamping production line. Complete mold automation testing can only be performed during stamping line production, which requires production time. Because the press slide is running, personnel cannot enter the press to closely observe the details of the mold automation's movement. Therefore, repeated testing and confirmation are required, resulting in the idleness of other production equipment and personnel on the stamping line. Furthermore, the press consumes a lot of energy when in operation. Online testing of mold automation results in a significant waste of production capacity, electricity, and labor. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology and provide an automatic simulation device for stamping dies.

[0005] The technical solution of the present invention is: a stamping die automation simulation device, comprising:

[0006] A condition simulator, which is used to simulate the operating parameters and production conditions of each mold automation device in the stamping line;

[0007] A central processing unit, the central processing unit is used to process the simulation signal sent by the condition simulator and issue corresponding instructions;

[0008] An air circuit execution unit, which receives instructions from a central processing unit to control the operation of the mold automation device;

[0009] A signal receiving unit, which is used to receive the operation signal of each mold automation device in the stamping line and send it to the central processing unit;

[0010] A human-computer interaction unit, which is used for staff to operate the condition simulator and monitor the operation signals;

[0011] The communication unit is used for transmitting data and signals among the condition simulator, the central processing unit, the gas path execution unit, the signal receiving unit and the human-computer interaction unit.

[0012] According to a stamping die automation simulation device provided by the present invention, the condition simulator includes:

[0013] The transport position simulator is used to simulate the action enable signal of the mold automation device when the mold automation device is at different transport positions in the transport stroke according to the action displacement curve of the automated transport equipment in the mold automation device.

[0014] According to a stamping die automation simulation device provided by the present invention, the condition simulator includes:

[0015] A slider position simulator is used to simulate the action enable signal of the mold automation device when the punching machine slider is at different positions during the punching stroke according to the slider action displacement curve of the punching machine in the mold automation device.

[0016] According to a stamping die automation simulation device provided by the present invention, the condition simulator includes:

[0017] An angle simulator is used to simulate an action enable signal for the mold automation device when the punching machine cam is at different angles during the punching stroke according to the cam angle curve of the punching machine in the mold automation device.

[0018] According to a stamping die automation simulation device provided by the present invention, the condition simulator includes:

[0019] A function simulator is used to simulate the conditional action enable signal of the mold automation device during the part stamping process and after the stamping is completed according to the process requirements of the part at different stages of the stamping process.

[0020] According to a stamping die automation simulation device provided by the present invention, the condition simulator includes:

[0021] A time simulator is used to simulate the time-sensitive action enable signal for the mold automation device during the stamping and forming process of the part and after the stamping is completed according to the process requirements of the part at different stages of the stamping and forming process.

[0022] According to a stamping die automation simulation device provided by the present invention, the gas path execution unit includes:

[0023] An air source input interface, which is used to connect to an external air pressure system;

[0024] An air source output interface, which is used to connect to a mold automation device of a press line;

[0025] The solenoid valve group is located between the gas source input interface and the gas source output interface for switching the gas on and off. The solenoid valve group is connected to the central processing unit data.

[0026] According to a stamping die automation simulation device provided by the present invention, the signal receiving unit includes:

[0027] A signal input interface, the signal input interface is used to obtain the output signal of the sensor of the mold automation device;

[0028] The signal conversion unit is used to convert the signal of the signal input interface into information that can be recognized and read by the central processing unit.

[0029] According to a stamping die automation simulation device provided by the present invention, the communication unit includes a first bus communication element and an Ethernet communication element for the central processing unit to communicate with the condition simulator and the human-computer interaction unit;

[0030] It also includes a second bus communication element and a hard-wire connection element for the central processing unit to communicate with the gas path execution unit and the signal receiving unit.

[0031] According to the stamping die automation simulation device provided by the present invention, the human-computer interaction unit is a terminal device for operating the device, monitoring signals, and setting, storing and calling parameters of the condition simulator.

[0032] The simulation device of the present invention can completely replace the stamping line for mold automation debugging, greatly reducing the time occupied by mold automation debugging on the production stamping line. It does not require multiple manual operations and can automatically perform mold automation continuous action tests for any set number of times, solving the problems of existing debugging methods such as high difficulty, cumbersomeness and time-consuming operation.

[0033] When performing automated debugging of the stamping die, the present invention only requires the plugging and unplugging of the air pipe, power supply and signal lines once, and the simulation device of the present invention can automatically perform an arbitrarily set number of automated continuous action tests of the die. This device can completely replace the stamping line to realize the relevant functions of automated debugging of the die, greatly reducing the automated testing time and work intensity. At the same time, this equipment can be portable and mobile, and has the advantages of high efficiency, simplicity, convenience and low cost, and has extremely high promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 : Schematic diagram of the simulation device structure of the present invention;

[0035] Figure 2 : Schematic diagram of the working principle of the simulation device of the present invention;

[0036] Figure 3 : A schematic structural diagram of the gas path execution unit of the present invention;

[0037] Figure 4 : A structural diagram of a signal receiving unit of the present invention;

[0038] Figure 5 : A schematic diagram of an embodiment of the human-computer interaction unit of the present invention;

[0039] Figure 6 : Flowchart of the press line debugging method of the present invention;

[0040] Among them: 1—cabinet; 2—power supply unit; 3—condition simulator; 4—central processing unit; 5—gas path execution unit; 6—signal receiving unit; 7—human-computer interaction unit; 8—communication unit; 31—position simulator; 32—angle simulator; 33—function simulator; 34—time simulator; 51—gas source input interface; 52—solenoid valve group; 53—gas source output interface; 61—signal input interface; 62—conversion unit; 63—sensor; 81—first bus communication element; 82—Ethernet communication element; 83—second bus communication element; 84—hard-wire connection element. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] like Figures 1 to 6 As shown, the present invention relates to a stamping die automation simulation device. The stamping die automation simulation device of the present invention is mainly used to debug the die automation device on the stamping line (the stamping line includes many die automation devices, such as automatic conveying devices, stamping machines, etc., and the stamping machines have cams and sliders). The debugging is performed by personnel monitoring the working status of the die automation device on the stamping line and the signal fed back from the operation of the die automation device to determine whether the die automation device is working normally.

[0046] The stamping die automation simulation device of this embodiment includes the following modules, namely, a condition simulator 3, a central processing unit 4, an air path execution unit 5, a signal receiving unit 6, a human-computer interaction unit 7 and a communication unit 8. The stamping die automation simulation device of this embodiment includes a cabinet 1. The above-mentioned unit modules are all placed in the cabinet 1. The cabinet 1 adopts a detachable and sealed structure to prevent dust and debris from entering the interior of the cabinet. The cabinet 1 adopts a compact structure design, and the overall dimensions are within a length of 500 mm, a width of 400 mm, and a height of 200 mm, which is convenient for manual carrying and movement.

[0047] In addition, a power supply unit 2 is also provided in the cabinet 1 of this embodiment. The power supply unit 2 is the power supply device of the entire stamping die automation simulation device. The power supply unit 2 consists of a power interface and a transformer module. The power interface is generally directly connected to the 220V AC power at the debugging site. Through the transformer module, it can be transformed into 24V DC and 110V AC respectively, so as to supply each unit in the cabinet 1.

[0048] The condition simulator 3 of this embodiment is used to simulate the signals of the mold automation device on the press line during production and send the simulated signals to the central processing unit 4. The condition simulator 3 of this embodiment is used to perform offline simulation of the position signals of the automated conveying device, the position signals of the press slide, the angle signals of the press cam, and the logical action signals and timing signals of each stage of mold forming, and transmit the simulated signals or data to the central processing unit 4.

[0049] The central processing unit 4 of this embodiment is the data and signal processing center of the entire device. The central processing unit 4 adopts the same control algorithm as the stamping line, and then simulates and outputs the action instructions of the mold automation device at each stage of the stamping line production process offline. The central processing unit 4 transmits the obtained instructions to the air circuit execution unit 5.

[0050] The central processing unit 4 is the data and instruction processing center of the entire equipment. The central processing unit 4 receives the IO signals and data of the condition simulator 3 for comprehensive processing, comprehensively simulates the actual working conditions of stamping such as automatic conveying equipment, stamping machines, and parts forming process requirements on the stamping line, processes related IO signals and data, and outputs execution power signals to the air circuit execution unit 5 according to the actual production conditions, controls the mold automation device to operate, and the central processing unit 4 can be implemented by PLC, industrial computer, etc., and can store and call different mold automation devices or different production condition parameters of the same mold automation device for simulation by setting recipes.

[0051] The air circuit execution unit 5 of this embodiment is a unit module for controlling the operation of the mold automation device in the stamping line. After receiving the control instruction of the central processor 4, the air circuit execution unit 5 drives the corresponding mold automation device.

[0052] The signal receiving unit 6 of this embodiment receives operational feedback from the mold automation device. When the pneumatic circuit execution unit 5 executes a command to drive the mold automation device, the sensor on the mold automation device transmits the operational information to the signal receiving unit 6. The signal receiving unit 6 processes the signal and transmits it to the central processing unit 4. The operator can obtain the operational status of the mold automation device based on the processed signal.

[0053] The human-computer interaction unit 7 of this embodiment is a terminal device for personnel to operate the condition simulator 3 and perform model monitoring. The staff can adjust the parameters of the condition simulator 3, monitor the signals transmitted by the signal receiving unit 6, and operate the condition simulation 3 through the human-computer interaction unit 7.

[0054] The communication unit 8 of this embodiment is used for transmitting data and signals among the condition simulator 3 , the central processing unit 4 , the gas path execution unit 5 , the signal receiving unit 6 and the human-computer interaction unit 7 .

[0055] In actual use, after completing the connection of the air pipe, signal line and power supply, the operator sets the parameters of the condition simulator 3 through the human-computer interaction unit 7. The setting is performed according to the stamping production line. After the setting is completed, the device is started to debug the stamping production line.

[0056] The central processing unit 4 processes the analog signal transmitted by the condition simulator 3 and sends corresponding instructions to the air circuit execution unit 5. After receiving the instructions, the air circuit execution unit 5 drives the corresponding mold automation device. The signal receiving unit 6 receives the signal from the sensor on the mold automation device, processes the signal and sends it to the central processing unit 4. The central processing unit 4 feeds back the signal status to the human-computer interaction unit 7 for easy viewing by the staff.

[0057] The staff judges the operation status of the mold automation device based on the signal display on the human-machine interaction unit 7 and direct observation on site, and debugs the stamping line accordingly.

[0058] In a further embodiment, the present embodiment optimizes the condition simulator 3, such as Figures 1-2 As shown, the condition simulator 3 of this embodiment includes a position simulator 31, and the position simulator includes a transport position simulator. The transport position simulator simulates the displacement-time virtual curve of the automated transport equipment (i.e., one of the mold automation devices) on the stamping line according to the action displacement curve of the automated transport equipment, through PLC, single-chip microcomputer or microcomputer programming, and outputs IO signals or position data to the central processor 4 according to requirements at different position coordinates, simulating the action enable signal of the mold automation device when the automated transport equipment is at different transport positions in the entire transport stroke.

[0059] In another preferred embodiment, this embodiment further optimizes the position simulator 31 in the previous embodiment. The position simulator 31 also includes a slider position simulator. The slider position simulator simulates the virtual displacement-time curve of the slider of the punching machine based on the slider action displacement curve of the punching machine. Each punching machine will have a completely different slider action displacement curve due to its different production function or mechanical structure. The displacement curve of the punching machine slider in the entire punching stroke is simulated through PLC, single-chip microcomputer or microcomputer programming, and the IO signal or position data is output to the central processor 4 according to demand at different position coordinates, simulating the action enable signal of the mold automation device when the punching machine slider is in different positions in the entire punching stroke.

[0060] In a preferred embodiment, this embodiment further optimizes the condition simulator 3, such as Figures 1-2 As shown, the condition simulator 3 of this embodiment also includes an angle simulator 32. Some manufacturers' mold automation devices control the stamping process by controlling the angle of the punching machine. To simulate this situation, this embodiment adds an angle simulator 32. The angle simulator 32 simulates a virtual curve of the punching machine cam angle-time based on the punching machine cam angle curve. As required, it outputs IO signals or angle data to the central processor 4 at different angle coordinates, simulating the action enable signal of the mold automation device when the punching machine cam is at different angles throughout the entire stamping stroke.

[0061] In another embodiment, the conditional simulator 3 of this embodiment includes a function simulator 33. The function simulator 33 simulates the logical function conditions such as sequential action, intermittent action, and synchronous action of the mold automation device in different forming stages according to the process requirements of the parts (parts stamped and produced on the stamping line) at different stages of the stamping process, and outputs IO signals to the central processor 4 at different stamping stages to simulate the conditional action enable signal of the mold automation device during the part stamping process and after the forming is completed.

[0062] In a further embodiment, the condition simulator 3 of this embodiment also includes a time simulator 34. The time simulator 34 simulates the seasonal action conditions such as timing on and off, action maintenance, etc. of the mold automation device at different forming stages according to the process requirements of the parts at different stages in the stamping and forming process, and outputs IO signals to the central processor 4 at different stamping and forming stages to simulate the seasonal action enable signal of the mold automation device during the part stamping and forming process and after the forming is completed.

[0063] In another embodiment, the present embodiment optimizes the gas path execution unit 5, such as Figure 3 As shown, the air circuit execution unit 5 of this embodiment includes an air source input interface 51, an electromagnetic valve group 52 and an air source output interface 53. The air source input interface 51 is connected to the external air pressure system (the external power source for the operation of the mold automation device). The electromagnetic valve group 52 and the air source output interface 53 are set according to the number of mold automation devices. The central processing unit 4 outputs a power signal to control the on and off of the electromagnetic valve group 52, thereby realizing the on and off switching of different air source output interfaces 53 and realizing various action controls of the mold automation device.

[0064] In a further embodiment, the signal receiving unit 6 is optimized. Figure 4As shown, the signal receiving unit 6 includes a signal input interface 61 and a signal conversion unit 62. The number of the signal input interfaces 61 is set according to the number of groups of the mold automation device. The signal input interface 61 is connected to the output signal of the sensor 63 of the mold automation device. The signal conversion unit 62 converts the input signal of the signal input interface 61 into information that can be recognized and read by the central processing unit 4. The converted information is further processed by the central processing unit 4 and then sent to the human-computer interaction unit 7. The action status, action time and other information of the corresponding mold automation device are monitored and displayed on the display interface of the human-computer interaction unit 7 as needed.

[0065] In another optional embodiment, this embodiment further optimizes the communication unit 8, which is a device for transmitting data and signals between the condition simulator 3, the central controller 4, the gas path execution unit 5, the signal receiving unit 6 and the human-computer interaction unit 7. Figure 2 As shown, it includes a first bus communication element 81 and an Ethernet communication element 82 for the central controller 4 to communicate with the condition simulator 3 and the human-computer interaction unit 7, and also includes a second bus communication element 83 and a hard-wire connection element 84 for the central controller 4 to communicate with the gas path execution unit 5 and the signal receiving unit 6.

[0066] In another optimized embodiment, the present embodiment further optimizes the human-machine interaction unit 7, which is a terminal device for setting parameters of the condition simulator 3, monitoring the signals of the signal receiving unit 6, and operating the condition simulator 3. Through the human-machine interaction unit 7, the operator can adjust some or all parameters of the condition simulator 3, including parameters such as the automated action position, action angle, action speed, production rhythm, and action time. The adjusted parameters are checked by the central processing unit 4 and then sent to each condition simulator 3 for calculation. At the same time, different parameters of the condition simulator 3 can be stored and called, such as Figure 5 Shown is a schematic diagram of an implementation form of the human-computer interaction unit 7 of this embodiment.

[0067] like Figure 6 FIG. 1 is a schematic diagram of the working of the stamping die automation simulation device of the present invention. The specific debugging method is carried out according to the following steps:

[0068] S1. Connect the external air pressure system to the air source input interface 51 of the air circuit execution unit, connect the air source output interface 53 to the mold automation device, and connect the sensor 63 of the mold automation device to the signal input interface 61 of the signal receiving unit 7;

[0069] S2, power supply unit 2 is powered on, and the entire stamping die automation simulation device is connected;

[0070] S3. If the system stores the debugging parameters of the conditional simulator 3, the stored conditional simulator parameters can be directly called for debugging. If the system does not store the debugging parameters of the conditional simulator 3, the corresponding debugging parameters need to be set through the human-computer interaction unit 7.

[0071] S4. After the adjustment of the debugging parameters is completed, confirm that the debugging parameters are correct;

[0072] S5. Start the entire device and begin debugging the stamping line. The mold automation device on the production line automatically cycles and starts testing. The signal receiving unit 6 transmits the operation signal of the mold automation device to the central processor 4. The central processor 4 processes the signal and displays it to the staff through the human-computer interaction unit 7. The staff can also directly observe the on-site operation of the mold automation device and make a comprehensive judgment.

[0073] S6. After the debugging of the stamping line is completed and the test is finished, the power supply unit 2 is powered off, the air source input interface 51 on the air circuit execution unit 5 is disconnected from the external air pressure system, the air source output interface 53 is disconnected from the mold automation device, and the signal input interface 61 of the model receiving unit 6 is disconnected from the sensor 63.

[0074] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A stamping die automation simulation device, characterized by: include, A condition simulator, which is used to simulate the operating parameters and production conditions of each mold automation device in the stamping line; A central processing unit, the central processing unit is used to process the simulation signal sent by the condition simulator and issue corresponding instructions; An air circuit execution unit, which receives instructions from a central processing unit to control the operation of the mold automation device; A signal receiving unit, which is used to receive the operation signal of each mold automation device in the stamping line and send it to the central processing unit; A human-computer interaction unit, which is used for staff to operate the condition simulator and monitor the operation signals; A communication unit, which is used for transmitting data and signals between the condition simulator, the central processing unit, the gas path execution unit, the signal receiving unit and the human-computer interaction unit; The condition simulator includes, A transport position simulator, which is used to simulate the action enable signal of the mold automation device at different transport positions during the transport stroke according to the action displacement curve of the automated transport equipment in the mold automation device; The condition simulator includes, A slider position simulator, which is used to simulate the action enable signal of the mold automation device when the slider of the punching machine is at different positions during the punching stroke according to the slider action displacement curve of the punching machine in the mold automation device; The condition simulator includes, An angle simulator, the angle simulator is used to simulate the action enable signal of the mold automation device when the punching machine cam is at different angles during the punching stroke according to the cam angle curve of the punching machine in the mold automation device; The condition simulator includes, A function simulator, which is used to simulate the conditional action enable signal of the mold automation device during the part stamping process and after the stamping is completed according to the process requirements of the part at different stages of the stamping process; The condition simulator includes, A time simulator is used to simulate the time-sensitive action enable signal for the mold automation device during the stamping and forming process of the part and after the stamping is completed according to the process requirements of the part at different stages of the stamping and forming process.

2. The stamping die automation simulation device according to claim 1, characterized in that: The gas path execution unit includes: An air source input interface, which is used to connect to an external air pressure system; An air source output interface, which is used to connect to a mold automation device of a press line; The solenoid valve group is located between the gas source input interface and the gas source output interface for controlling the channel, and the solenoid valve group is data-connected to the central processing unit.

3. The stamping die automation simulation device according to claim 1, characterized in that: The signal receiving unit includes: A signal input interface, the signal input interface is used to obtain the output signal of the sensor of the mold automation device; The signal conversion unit is used to convert the signal of the signal input interface into information that can be recognized and read by the central processing unit.

4. The stamping die automation simulation device according to claim 1, characterized in that: The communication unit includes a first bus communication element and an Ethernet communication element for the central processing unit to communicate with the condition simulator and the human-computer interaction unit; It also includes a second bus communication element and a hard-wire connection element for the central processing unit to communicate with the gas path execution unit and the signal receiving unit.

5. The stamping die automation simulation device according to claim 1, characterized in that: The human-computer interaction unit is a terminal device for operating the device, monitoring signals, and setting, storing and calling various parameters of the condition simulator.

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