A method and system for punch manual production line die change time statistics

Abstract

The application provides a stamping manual production line die changing time statistical method and system, the method comprises the following steps: determining whether the position of the stamping machine slider needs to be acquired based on the working mode; if so, acquiring the first start time of the die dismounting stage based on the position of the stamping machine slider, acquiring the first end time of the die dismounting stage based on the state information of the workbench, and then acquiring the die dismounting time; selecting the first end time as the second start time of the die mounting stage, and selecting the completion time of the stamping detection as the second end time of the die mounting stage, and then acquiring the die mounting time; determining the validity of the die dismounting time and the die mounting time to acquire the die changing time. The acquisition of the die dismounting time and the die mounting time is automatically completed, specific definitions are given for each time node of the die changing, the validity of the die dismounting time and the die mounting time is determined, the accuracy and reliability of the die changing time acquisition are improved while the automatic time statistics is completed.

Description

Technical Field

[0001] This invention relates to the field of production and processing technology, and in particular to a method and system for statistical analysis of die change time in a manual stamping production line. Background Technology

[0002] In modern factory production, accurately tracking production line uptime and analyzing the proportion of each component is crucial for improving production efficiency. Production line uptime primarily encompasses production time, downtime, mold changeover time, and other lost time. Production lines are further categorized into manual and automated lines.

[0003] In terms of calculating mold change time, automated production lines demonstrate a clear advantage. Due to their high level of automation, they operate as a unified whole during production and have clear start and end instructions for mold change, making the calculation of mold change time relatively simple and accurate.

[0004] The manual production line lacks clear start and end instructions for mold changing, making it difficult for statisticians to accurately determine the start and end times of the mold changing operation. This leads to difficulties in defining the start and end points of time statistics, affecting the accuracy of mold changing time statistics and making the recording of production data unreliable, which greatly hinders subsequent production analysis and decision-making. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a method and system for statistical analysis of die change time in a manual stamping production line. This solution addresses the technical problem that existing manual production lines lack clear start and end instructions for die change, making it difficult to define the start and end points of time statistics. This affects the accuracy of die change time statistics, leading to unreliable production data recording and significantly hindering subsequent production analysis and decision-making.

[0006] To achieve the above objectives, in a first aspect, embodiments of this application provide a method for statistically analyzing the die-changing time of a manual stamping production line, used to statistically analyze the effective die-changing time. The die-changing includes a sequentially performed die-disassembly stage and a die-assembly stage. The method for statistically analyzing the die-changing time of a manual stamping production line includes the following steps:

[0007] The working mode of the manual production line is detected, and based on the working mode, it is determined whether it is necessary to obtain the position of the press slide.

[0008] If it is necessary to obtain the position of the press slide, the first start time of the demolding stage is obtained based on the position of the press slide, the first end time of the demolding stage is obtained based on the status information of the worktable, and the demolding time is obtained through the first start time and the first end time.

[0009] The first end time is selected as the second start time of the die mounting stage, and first position information of the workbench is acquired, whether stamping detection needs to be performed is determined through the first position information, if stamping detection needs to be performed, a completion time of the stamping detection is selected as a second end time of the die mounting stage, and a die mounting time is acquired through the second start time and the second end time;

[0010] Whether the die mounting time and the die removing time are effective die mounting time and effective die removing time is determined respectively, if the die mounting time is the effective die mounting time and the die removing time is the effective die removing time, the effective die mounting time and the effective die removing time are combined as a die changing time.

[0011] Compared with the prior art, the beneficial effects of the present application are that the first start time of the die removing stage is automatically acquired through the position of the stamping machine slide, the first end time of the die removing stage is automatically acquired through the state information of the workbench, further, the acquisition rules of the second start time and the second end time of the die mounting stage are set, and then the acquisition of the die removing time and the die mounting time can be automatically completed, specific definitions of each time node of die changing are given, through the validity determination of the die removing time and the die mounting time, the accuracy and reliability of the die changing time acquisition are improved while the automatic time statistics is completed.

[0012] Further, the work mode includes a single production mode and a non-production mode, and the step of determining whether the position of the stamping machine slide needs to be acquired based on the work mode includes:

[0013] If the work mode is the single production mode, it is determined that the position of the stamping machine slide does not need to be acquired;

[0014] If the work mode is the non-production mode, it is determined that the position of the stamping machine slide needs to be acquired.

[0015] Further, the step of acquiring the first start time of the die removing stage based on the position of the stamping machine slide specifically includes:

[0016] The real-time position of the stamping machine slide is continuously detected until the stamping machine slide is located at the top dead center, and the time is selected as the first start time of the die removing stage.

[0017] Further, the step of acquiring the first end time of the die removing stage based on the state information of the workbench includes:

[0018] A first pressure signal of a hydraulic fixture is acquired, and whether the workbench is lifted is detected;

[0019] If the first pressure signal is zero and the workbench is lifted, second position information of the workbench is acquired, and whether the workbench moves out of the processing area is determined based on the second position information;

[0020] If the workbench moves out of the processing area, the time is selected as the first end time of the stripping stage.

[0021] Further, the step of determining whether stamping detection is needed based on the first position information comprises:

[0022] Determining whether the workbench moves into the processing area based on the first position information;

[0023] If the workbench moves into the processing area, a second pressure signal of the hydraulic fixture is continuously acquired, and the second pressure signal is compared with a pressure threshold;

[0024] If the second pressure signal is greater than the pressure threshold, it is determined that stamping detection is needed.

[0025] Further, the steps of respectively determining whether the stripping time and the clamping time are valid stripping time and valid clamping time comprise:

[0026] Comparing the stripping time with a first time threshold range and comparing the clamping time with a second time threshold range;

[0027] If the stripping time is within the first time threshold range, it is selected as the valid stripping time;

[0028] If the clamping time is within the second time threshold range, it is selected as the valid clamping time.

[0029] Further, the first time threshold range is 120s-1800s, and the second time threshold range is 180s-2400s.

[0030] In a second aspect, an embodiment of the present application provides a stamping manual production line die changing time statistical system, which is applied to the stamping manual production line die changing time statistical method in the first aspect, and the system comprises:

[0031] A first detection module is configured to detect a work mode of the manual production line and determine whether the position of the stamping machine slide needs to be acquired based on the work mode;

[0032] The second detection module is configured to, if it is necessary to acquire the position of the punch press slider, acquire a first start time of the stripping stage based on the position of the punch press slider, acquire a first end time of the stripping stage based on the state information of the workbench, and acquire a stripping time based on the first start time and the first end time.

[0033] The third detection module is configured to select the first end time as a second start time of the mould loading stage, acquire first position information of the workbench, determine whether it is necessary to perform punch detection based on the first position information, select a completion time of the punch detection as a second end time of the mould loading stage if it is necessary to perform punch detection, and acquire a mould loading time based on the second start time and the second end time.

[0034] The selection module is configured to determine whether the stripping time and the mould loading time are valid stripping time and valid mould loading time respectively, and combine the valid stripping time and the valid mould loading time as a die changing time if the stripping time is the valid stripping time and the mould loading time is the valid mould loading time.

[0035] In a third aspect, an embodiment of the present application provides a computer, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the punch manual production line die changing time statistical method according to the first aspect when executing the computer program.

[0036] In a fourth aspect, an embodiment of the present application provides a storage medium, which stores a computer program, and the computer program is executable on a processor to implement the punch manual production line die changing time statistical method according to the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 A flow chart of the punch manual production line die changing time statistical method in the first embodiment of the present application;

[0038] Figure 2 A structural block diagram of the punch manual production line die changing time statistical system in the second embodiment of the present application;

[0039] The following specific embodiments will further illustrate the present application in combination with the above-mentioned drawings. DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The drawings show several embodiments of the present application. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0041] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element is described as being "connected" or "coupled" to another element, it can be directly connected or coupled or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0043] Referring to Figure 1 The stamping manual production line die changing time statistical method provided by the first embodiment of the application is used for statistically counting the die changing time of effective die changing. The die changing includes a disassembling stage and an assembling stage which are sequentially performed. Understandably, the upper die and the lower die are arranged from top to bottom on the stamping manual production line. The upper die is connected with the slide block of the stamping machine. The stamping machine slide block can drive the upper die to move close to or away from the lower die, thereby completing stamping. The lower die is connected to the workbench and is used for bearing the workpiece to be processed. The die changing refers to taking down the old upper die and the old lower die and replacing them with new upper die and new lower die. The stamping manual production line die changing time statistical method includes the following steps:

[0044] S10: detecting the working mode of the manual production line and determining whether the position of the stamping machine slide block needs to be acquired based on the working mode;

[0045] The working mode includes a single production mode and a non-production mode. The step S10 includes:

[0046] S110: if the working mode is the single production mode, it is determined that the position of the stamping machine slide block does not need to be acquired;

[0047] S120: if the working mode is the non-production mode, it is determined that the position of the stamping machine slide block needs to be acquired.

[0048] S20: if the position of the stamping machine slide block needs to be acquired, the first start time of the disassembling stage is acquired based on the position of the stamping machine slide block, the first end time of the disassembling stage is acquired based on the state information of the workbench, and the disassembling time is acquired through the first start time and the first end time;

[0049] The step S20 includes:

[0050] S210: continuously detecting the real-time position of the punch slider until the punch slider is at the top dead center, and selecting the time as the first start time of the stripping stage;

[0051] The punch slider at the top dead center means that the punch slider is at the highest point, at which the upper die and the lower die are farthest apart in the vertical direction.

[0052] S220: obtaining a first pressure signal of a hydraulic fixture and detecting whether the workbench is lifted;

[0053] The hydraulic fixture is used to fix the lower die on the workbench. The upper die is screwed with the punch slider. The essence of stripping is to unlock the upper die from the punch slider and unlock the lower die from the workbench.

[0054] S230: if the first pressure signal is zero and the workbench is lifted, obtaining second position information of the workbench and determining whether the workbench moves out of the processing area based on the second position information;

[0055] By simultaneously detecting the first pressure signal and whether the workbench is lifted, the false judgment of the state caused by the sensor failure of the single sensor detection method can be avoided, and different production equipment can also be adapted.

[0056] S240: if the workbench moves out of the processing area, selecting the time as the first end time of the stripping stage.

[0057] The stripping time is equal to the difference between the first start time and the first end time.

[0058] S30: selecting the first end time as the second start time of the die setting stage, obtaining first position information of the workbench, determining whether stamping detection is needed through the first position information, if stamping detection is needed, selecting the completion time of the stamping detection as the second end time of the die setting stage, and obtaining the die setting time through the second start time and the second end time;

[0059] The step S30 comprises:

[0060] S310: determining whether the workbench moves into the processing area based on the first position information;

[0061] S320: if the workbench moves into the processing area, continuously obtaining a second pressure signal of the hydraulic fixture, and comparing the second pressure signal with a pressure threshold;

[0062] S330: if the second pressure signal is greater than the pressure threshold, it is determined that stamping detection is needed.

[0063] It can be understood that when the second pressure signal is greater than the pressure threshold, the hydraulic fixture re-fixes a new lower die on the workbench, that is, the replacement of the lower die is completed. The die mounting time is the difference between the second start time and the second end time.

[0064] S40: respectively judge whether the die dismounting time and the die mounting time are effective die dismounting time and effective die mounting time, if the die dismounting time is the effective die dismounting time and the die mounting time is the effective die mounting time, combine the effective die dismounting time and the effective die mounting time as die replacement time;

[0065] The step S40 comprises:

[0066] S410: compare the die dismounting time with a first time threshold range, and compare the die mounting time with a second time threshold range;

[0067] Preferably, the first time threshold range is 120s-1800s, and the second time threshold range is 180s-2400s.

[0068] S420: if the die dismounting time is within the first time threshold range, select it as the effective die dismounting time;

[0069] S430: if the die mounting time is within the second time threshold range, select it as the effective die mounting time;

[0070] It should be noted that if the die dismounting time is not the effective die dismounting time and / or the die mounting time is not the effective die mounting time, the current operation is recorded as an abnormal operation and stored in the abnormal data table to support subsequent root cause analysis.

[0071] By acquiring the position of the punch press slide, the first start time of the die dismounting stage is automatically acquired, and by acquiring the state information of the workbench, the first end time of the die dismounting stage is automatically acquired. Further, the acquisition rules of the second start time and the second end time of the die mounting stage are set, and the acquisition of the die dismounting time and the die mounting time is automatically completed. The specific definition of each time node of die replacement is given, and through the effectiveness determination of the die dismounting time and the die mounting time, the accuracy and reliability of the die replacement time acquisition are improved while the time statistics is automatically completed. At the same time, by storing the abnormal data table, the effective operation and invalid interruption are effectively distinguished, high-value data support is provided for production line optimization, the operation process is forcedly standardized, the equipment safety hidden danger is reduced, and finally the overall production efficiency and decision-making ability are improved.

[0072] Please refer to Figure 2The second embodiment of the present application provides a stamping manual production line die changing time statistical system, which is applied to the stamping manual production line die changing time statistical method in the above embodiment, and the description of which has been made. As used below, the terms "module", "unit", "sub-unit" and the like can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, hardware, or a combination of software and hardware can also be implemented and conceived.

[0073] The system comprises:

[0074] A first detection module 10 is configured to detect a working mode of the manual production line, and determine whether the position of the slide of the stamping machine needs to be acquired based on the working mode.

[0075] The first detection module 10 comprises:

[0076] A first unit is configured to determine that the position of the slide of the stamping machine does not need to be acquired if the working mode is the single production mode.

[0077] A second unit is configured to determine that the position of the slide of the stamping machine needs to be acquired if the working mode is the non-production mode.

[0078] A second detection module 20 is configured to acquire a first start time of the die dismounting stage based on the position of the slide of the stamping machine, acquire a first end time of the die dismounting stage based on the state information of the workbench, and acquire the die dismounting time based on the first start time and the first end time if the position of the slide of the stamping machine needs to be acquired.

[0079] The second detection module 20 comprises:

[0080] A third unit is configured to continuously detect the real-time position of the slide of the stamping machine until the slide of the stamping machine is located at the top dead center, and select the time as the first start time of the die dismounting stage.

[0081] A fourth unit is configured to acquire a first pressure signal of a hydraulic fixture, and detect whether the workbench is lifted.

[0082] A fifth unit is configured to acquire second position information of the workbench if the first pressure signal is zero and the workbench is lifted, and determine whether the workbench moves out of the processing area based on the second position information.

[0083] A sixth unit is configured to select the time as the first end time of the die dismounting stage if the workbench moves out of the processing area.

[0084] The third detection module 30 is configured to select the first end time as a second start time of the die mounting stage, acquire first position information of the workbench, determine whether stamping detection is needed according to the first position information, select a completion time of the stamping detection as a second end time of the die mounting stage if the stamping detection is needed, and acquire a die mounting time according to the second start time and the second end time.

[0085] The third detection module 30 comprises:

[0086] A seventh unit is configured to determine whether the workbench moves into a processing area based on the first position information.

[0087] An eighth unit is configured to continuously acquire a second pressure signal of the hydraulic fixture if the workbench moves into the processing area, and compare the second pressure signal with a pressure threshold.

[0088] A ninth unit is configured to determine that the stamping detection is needed if the second pressure signal is greater than the pressure threshold.

[0089] The selection module 40 is configured to determine whether the die dismounting time and the die mounting time are valid die dismounting time and valid die mounting time respectively, and combine the valid die dismounting time and the valid die mounting time as a die changing time if the die dismounting time is the valid die dismounting time and the die mounting time is the valid die mounting time.

[0090] The selection module 40 comprises:

[0091] A tenth unit is configured to compare the die dismounting time with a first time threshold range, and compare the die mounting time with a second time threshold range.

[0092] An eleventh unit is configured to select the die dismounting time as the valid die dismounting time if the die dismounting time is within the first time threshold range.

[0093] A twelfth unit is configured to select the die mounting time as the valid die mounting time if the die mounting time is within the second time threshold range.

[0094] The present application also provides a computer comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the stamping manual production line die changing time statistical method as described in the above technical solution.

[0095] The present application also provides a storage medium having a computer program stored thereon, wherein the computer program is executable on a processor to implement the stamping manual production line die changing time statistical method as described in the above technical solution.

[0096] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0097] The above-described embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but cannot be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A press hand production line die change time counting method for counting a die change time of an effective die change, the die change including a die removal stage and a die mounting stage which are sequentially performed, characterized by, The stamping manual production line die changing time statistical method comprises the following steps: Detecting the working mode of the manual production line, determining whether the position of the punch slider needs to be acquired based on the working mode; If the position of the punch slider needs to be acquired, acquiring the first start time of the die dismounting stage based on the position of the punch slider, acquiring the first end time of the die dismounting stage based on the state information of the workbench, and acquiring the die dismounting time through the first start time and the first end time; Selecting the first end time as the second start time of the die mounting stage, acquiring the first position information of the workbench, determining whether stamping detection needs to be performed through the first position information, selecting the completion time of the stamping detection as the second end time of the die mounting stage if stamping detection needs to be performed, and acquiring the die mounting time through the second start time and the second end time; Determining whether the die dismounting time and the die mounting time are valid die dismounting time and valid die mounting time respectively, and combining the valid die dismounting time and the valid die mounting time as the die changing time if the die dismounting time is the valid die dismounting time and the die mounting time is the valid die mounting time.

2. The press hand line die change time statistical method according to claim 1, characterized by, The working mode comprises a single production mode and a non-production mode, and the step of determining whether the position of the punch slider needs to be acquired based on the working mode comprises: If the working mode is the single production mode, it is determined that the position of the punch slider does not need to be acquired; If the working mode is the non-production mode, it is determined that the position of the punch slider needs to be acquired.

3. The press hand line die change time statistical method according to claim 1, characterized by, The step of acquiring the first start time of the die dismounting stage based on the position of the punch slider specifically comprises: Continuously detecting the real-time position of the punch slider until the punch slider is located at the top dead center, and selecting the time as the first start time of the die dismounting stage.

4. The press hand line die change time statistical method according to claim 1, characterized by, The step of acquiring the first end time of the die dismounting stage based on the state information of the workbench comprises: Acquiring the first pressure signal of the hydraulic fixture, and detecting whether the workbench is lifted; If the first pressure signal is zero and the workbench is lifted, acquiring the second position information of the workbench, determining whether the workbench moves out of the processing area based on the second position information; If the workbench moves out of the processing area, selecting the time as the first end time of the die dismounting stage.

5. The press hand line die change time statistical method of claim 1, wherein, The step of determining whether stamping detection needs to be performed through the first position information comprises: Determining whether the workbench moves into the processing area based on the first position information; If the workbench moves into the processing area, continuously acquiring the second pressure signal of the hydraulic fixture, and comparing the second pressure signal with a pressure threshold; If the second pressure signal is greater than the pressure threshold, it is determined that stamping detection needs to be performed.

6. The press hand line die change time statistical method of claim 1, wherein, The step of determining whether the die dismounting time and the die mounting time are valid die dismounting time and valid die mounting time respectively comprises: Comparing the die dismounting time with a first time threshold range, and comparing the die mounting time with a second time threshold range; If the stripping time is within the first time threshold range, it is selected as a valid stripping time; If the loading time is within the second time threshold range, it is selected as a valid loading time.

7. The press hand line die change time statistical method according to claim 6, characterized by, The first time threshold range is 120s-1800s, and the second time threshold range is 180s-2400s.

8. A press manual production line die change time statistics system for use in the press manual production line die change time statistics method according to any one of claims 1 to 7, characterized by The system comprises: A first detection module for detecting the working mode of the manual production line, and determining whether the position of the punch press slide needs to be acquired based on the working mode; A second detection module for acquiring the first start time of the stripping stage based on the position of the punch press slide if the position of the punch press slide needs to be acquired, acquiring the first end time of the stripping stage based on the state information of the workbench, and acquiring the stripping time through the first start time and the first end time; A third detection module for selecting the first end time as the second start time of the loading stage, acquiring the first position information of the workbench, determining whether the punch detection needs to be performed through the first position information, selecting the completion time of the punch detection as the second end time of the loading stage if the punch detection needs to be performed, and acquiring the loading time through the second start time and the second end time; A selection module for determining whether the stripping time and the loading time are valid stripping time and valid loading time respectively, and combining the valid stripping time and the valid loading time as the die changing time if the stripping time is the valid stripping time and the loading time is the valid loading time.

9. A computer comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the computer program to realize the die changing time statistical method of the stamping manual production line according to any one of claims 1-7.

10. A storage medium having stored thereon a computer program, characterized in that The computer program is executed by the processor to realize the die changing time statistical method of the stamping manual production line according to any one of claims 1-7.

Images