Statistical method and system for die change time of stamping manual production line

Abstract

The invention provides a stamping manual production line die change time statistical method and system. The method comprises the steps that whether the position of a stamping machine sliding block needs to be obtained or not is judged based on a working mode; if yes, the first starting time of the mold removal stage is obtained based on the position of the punching machine sliding block, the first ending time of the mold removal stage is obtained based on the state information of the workbench, and then the mold removal time is obtained; the first ending time is selected as the second starting time of the die filling stage, the completion time of stamping detection is selected as the second ending time of the die filling stage, and then the die filling time is obtained; and judging the effectiveness of the mold dismounting time and the mold mounting time to obtain the mold changing time. According to the method, the mold removal time and the mold filling time are automatically obtained, a specific definition is given for each time node of mold replacement, and the mold removal time and the mold filling time are subjected to validity judgment, so that the accuracy and the reliability of obtaining the mold replacement time are improved while time statistics is automatically completed.

Description

Technical Field

[0001] The present invention relates to the technical field of production and processing, and in particular to a method and system for counting die change time of a manual stamping production line. Background Art

[0002] In modern factory production, accurately counting the running time of the production line and deeply analyzing the proportion of each part are crucial to improving production efficiency. The running time of the production line mainly includes production time, failure time, mold change time and other loss time. Among them, the production line is divided into manual line and automatic line.

[0003] In terms of mold change time statistics, the automatic line shows obvious advantages. Due to its high level of equipment automation, it works as a whole during production and has clear mold change start and end instructions, making the mold change time statistics relatively simple and accurate.

[0004] However, the manual line does not have clear instructions for the start and end of mold changing, so it is difficult for statisticians to accurately determine the start and end times of the mold changing operation, which makes it difficult to define the starting and end points of time statistics, affecting the accuracy of mold changing time statistics, making the recording of production data unreliable, and bringing great obstacles to subsequent production analysis and decision-making. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a method and system for counting the die change time of a manual stamping production line, aiming to solve the technical problem that the manual line in the prior art does not have clear die change start and end instructions, which makes it difficult to define the starting and end points of time statistics, affects the accuracy of die change time statistics, makes the recording of production data unreliable, and brings great obstacles to subsequent production analysis and decision-making.

[0006] In order to achieve the above-mentioned purpose, in a first aspect, an embodiment of the present application provides a method for counting the die change time of a stamping manual production line, which is used to count the die change time of an effective die change, wherein the die change includes a die removal stage and a die installation stage performed sequentially, and the method for counting the die change time of a stamping manual production line includes the following steps:

[0007] Detecting the working mode of the manual production line, and determining whether it is necessary to obtain the position of the punching machine slide based on the working mode;

[0008] If the position of the punching machine slider needs to be obtained, the first start time of the demolding phase is obtained based on the position of the punching machine slider, the first end time of the demolding phase is obtained based on the status information of the workbench, 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 loading stage, and the first position information of the workbench is obtained, and whether a stamping test is required is determined according to the first position information; if the stamping test is required, the completion time of the stamping test is selected as the second end time of the die loading stage, and the die loading time is obtained according to the second start time and the second end time;

[0010] It is determined whether the demolding time and the mold loading time are the effective demolding time and the effective mold loading time respectively; if the demolding time is the effective demolding time and the mold loading time is the effective mold loading time, the effective demolding time and the effective mold loading time are combined into the mold changing time.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the first start time of the demolding phase is automatically obtained by obtaining the position of the punching machine slider, and the first end time of the demolding phase is automatically obtained by the status information of the workbench; further, the acquisition rules of the second start time and the second end time of the mold loading phase are set, so that the acquisition of the demolding time and the mold loading time can be automatically completed, and specific definitions are given for each time node of the mold change. By judging the validity of the demolding time and the mold loading time, the accuracy and reliability of the mold change time acquisition are improved while the time statistics are automatically completed.

[0012] Furthermore, the working mode includes a single production mode and a non-production mode, and the step of determining whether it is necessary to obtain the position of the punching machine slide based on the working mode includes:

[0013] If the working mode is the single production mode, it is determined that there is no need to obtain the position of the punching machine slide;

[0014] If the working mode is the non-production mode, it is determined that the position of the punching machine slide needs to be obtained.

[0015] Furthermore, the step of obtaining the first start time of the demolding phase based on the position of the punching machine slide is specifically:

[0016] The real-time position of the punching machine slide is continuously detected until the punching machine slide is located at the top dead center, and this moment is selected as the first starting time of the demolding stage.

[0017] Furthermore, the step of obtaining the first end time of the demoulding stage based on the status information of the workbench includes:

[0018] Acquiring a first pressure signal of the hydraulic fixer and detecting whether the workbench is lifted;

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

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

[0021] Furthermore, the step of determining whether stamping detection is required based on the first position information includes:

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

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

[0024] If the second pressure signal is greater than the pressure threshold, it is determined that a stamping test is required.

[0025] Furthermore, the step of respectively judging whether the demolding time and the mold loading time are effective demolding time and effective mold loading time comprises:

[0026] Comparing the demolding time with a first time threshold range, and comparing the mold loading time with a second time threshold range;

[0027] If the demolding time is within the first time threshold range, then it is selected as the effective demolding time;

[0028] If the mold loading time is within the second time threshold range, it is selected as the effective mold loading time.

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

[0030] In a second aspect, an embodiment of the present application provides a stamping manual production line die change time statistics system, which is applied to the stamping manual production line die change time statistics method as described in the first aspect above, and the system includes:

[0031] A first detection module is used to detect the working mode of the manual production line and determine whether it is necessary to obtain the position of the punching machine slide based on the working mode;

[0032] A second detection module is used for obtaining the first start time of the demolding phase based on the position of the stamping slide, obtaining the first end time of the demolding phase based on the status information of the workbench, and obtaining the demolding time through the first start time and the first end time if the position of the stamping slide needs to be obtained;

[0033] a third detection module, configured to select the first end time as the second start time of the die loading stage, and obtain the first position information of the workbench, and determine whether a stamping test is required based on the first position information; if a stamping test is required, the completion time of the stamping test is selected as the second end time of the die loading stage, and the die loading time is obtained based on the second start time and the second end time;

[0034] The selection module is used to respectively determine whether the demolding time and the mold loading time are the effective demolding time and the effective mold loading time. If the demolding time is the effective demolding time and the mold loading time is the effective mold loading time, the effective demolding time and the effective mold loading time are combined into the mold changing time.

[0035] In a third aspect, an embodiment of the present application provides a computer, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein when the processor executes the computer program, the method for counting mold change time of a manual stamping production line as described in the first aspect above is implemented.

[0036] In a fourth aspect, an embodiment of the present application provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements the method for counting mold change time of a manual stamping production line as described in the first aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a flow chart of the method for counting die change time of a stamping manual production line in the first embodiment of the present invention;

[0038] Figure 2 It is a structural block diagram of a stamping manual production line die change time statistics system in the second embodiment of the present invention;

[0039] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention 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 invention more thorough and comprehensive.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0043] See also Figure 1 The first embodiment of the present invention provides a method for counting the die change time of a manual stamping production line, which is used to count the effective die change time. The die change includes a die removal stage and a die installation stage performed in sequence. It can be understood that the manual stamping production line is provided with an upper die and a lower die arranged from top to bottom. The upper die is connected to the slider of the stamping machine. The sliding of the stamping machine can drive the upper die to approach or move away from the lower die, thereby completing the stamping. The lower die is connected to the workbench and is used to carry the workpiece to be processed. The die change refers to removing the old upper die and the lower die and replacing them with new upper die and the lower die. The method for counting the die change time of a manual stamping production line includes the following steps:

[0044] S10: Detecting the working mode of the manual production line, and determining whether it is necessary to obtain the position of the punching machine slide based on the working mode;

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

[0046] S110: If the working mode is the single production mode, it is determined that there is no need to obtain the position of the punching machine slide;

[0047] S120: If the working mode is the non-production mode, it is determined that the position of the punching machine slider needs to be obtained;

[0048] S20: if it is necessary to obtain the position of the punching machine slider, then obtain the first start time of the demolding phase based on the position of the punching machine slider, obtain the first end time of the demolding phase based on the status information of the workbench, and obtain the demolding time through the first start time and the first end time;

[0049] The step S20 comprises:

[0050] S210: Continuously detecting the real-time position of the punching machine slide until the punching machine slide is located at the top dead center, and selecting this moment as the first start time of the demolding stage;

[0051] The punching machine slider being located at the top dead center means that the punching machine slider is located at the highest point. At this time, the upper die and the lower die are farthest apart in the vertical direction.

[0052] S220: Acquire a first pressure signal of the hydraulic fixer, and detect whether the workbench is lifted;

[0053] The hydraulic fixer is used to fix the lower die on the workbench. The upper die is screwed to the punching machine slider. The essence of demoulding is to unlock the upper die from the punching machine 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 is moved 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, misjudgment of the state caused by sensor failure through detection by a single sensor can be avoided. At the same time, different production equipment can also be adapted.

[0056] S240: If the workbench moves out of the processing area, this moment is selected as the first end time of the demolding stage.

[0057] The assembly / disassembly 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 loading stage, and obtaining the first position information of the workbench, judging whether a stamping test is required based on the first position information, and if a stamping test is required, selecting the completion time of the stamping test as the second end time of the die loading stage, and obtaining the die loading time based on the second start time and the second end time;

[0059] The step S30 comprises:

[0060] S310: Determine whether the workbench has moved into a processing area based on the first position information;

[0061] S320: If the workbench moves into the processing area, continuously obtain a second pressure signal of the hydraulic fixture, and compare 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 a stamping test is required.

[0063] It can be understood that when the second pressure signal is greater than the pressure threshold, the hydraulic fixer re-fixes the new lower mold on the workbench, which means that the lower mold is replaced. The mold loading time is the difference between the second start time and the second end time.

[0064] S40: respectively judging whether the demolding time and the mold loading time are the effective demolding time and the effective mold loading time; if the demolding time is the effective demolding time and the mold loading time is the effective mold loading time, combining the effective demolding time and the effective mold loading time into a mold changing time;

[0065] The step S40 comprises:

[0066] S410: comparing the demolding time with a first time threshold range, and comparing the mold loading time with a second time threshold range;

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

[0068] S420: If the demolding time is within the first time threshold range, select it as the effective demolding time;

[0069] S430: If the mold loading time is within the second time threshold range, select it as the effective mold loading time;

[0070] It should be noted that if the demolding time is not the effective demolding time and / or the mold loading time is not the effective mold loading time, this operation will be recorded as an abnormal operation and stored in the abnormal data table to support subsequent root cause analysis.

[0071] The first start time of the demolding phase is automatically obtained by obtaining the position of the punching machine slider, and the first end time of the demolding phase is automatically obtained through the status information of the workbench. Furthermore, the acquisition rules of the second start time and the second end time of the mold loading phase are set, so that the demolding time and the mold loading time can be automatically acquired, and specific definitions are given for each time node of the mold change. By determining the effectiveness of the demolding time and the mold loading time, the accuracy and reliability of the mold change time acquisition are improved while the time statistics are automatically completed. At the same time, by storing the abnormal data table, effective operations and invalid interruptions can be effectively distinguished, providing high-value data support for production line optimization, and forcing standardized operation procedures to reduce equipment safety hazards, and ultimately achieving a comprehensive improvement in production efficiency and decision-making capabilities.

[0072] See also Figure 2The second embodiment of the present invention provides a stamping manual production line die change time statistics system, which is applied to the stamping manual production line die change time statistics method in the above embodiment, and will not be repeated here. As used below, the terms "module", "unit", "sub-unit", etc. can be a combination of software and / or hardware that implements predetermined functions. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0073] The system comprises:

[0074] A first detection module 10 is used to detect the working mode of the manual production line and determine whether it is necessary to obtain the position of the punching machine slide based on the working mode;

[0075] The first detection module 10 includes:

[0076] The first unit is used for determining that it is not necessary to obtain the position of the punching machine slide if the working mode is the single production mode;

[0077] The second unit is used for determining that the position of the punching machine slide needs to be obtained if the working mode is the non-production mode;

[0078] The second detection module 20 is used for obtaining the first start time of the demolding phase based on the position of the stamping slide if it is necessary to obtain the position of the stamping slide, obtaining the first end time of the demolding phase based on the status information of the workbench, and obtaining the demolding time through the first start time and the first end time;

[0079] The second detection module 20 includes:

[0080] The third unit is used to continuously detect the real-time position of the punching machine slide until the punching machine slide is located at the top dead center, and select this moment as the first start time of the demolding stage;

[0081] A fourth unit is used to obtain a first pressure signal of the hydraulic fixer and detect whether the workbench is lifted;

[0082] a fifth unit, configured to obtain second position information of the workbench if the first pressure signal is zero and the workbench is lifted, and determine whether the workbench is moved out of the processing area based on the second position information;

[0083] The sixth unit is used for selecting a moment as the first end time of the demoulding stage if the workbench moves out of the processing area;

[0084] A third detection module 30 is used to select the first end time as the second start time of the die loading stage, and obtain the first position information of the workbench, and determine whether a stamping test is required based on the first position information. If a stamping test is required, the completion time of the stamping test is selected as the second end time of the die loading stage, and the die loading time is obtained based on the second start time and the second end time.

[0085] The third detection module 30 includes:

[0086] A seventh unit is used to determine whether the workbench has moved into a processing area based on the first position information;

[0087] an eighth unit, 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, configured to determine that a stamping test is required if the second pressure signal is greater than the pressure threshold;

[0089] A selection module 40 is used to determine whether the demolding time and the mold loading time are effective demolding time and effective mold loading time, respectively. If the demolding time is the effective demolding time and the mold loading time is the effective mold loading time, the effective demolding time and the effective mold loading time are combined into a mold change time.

[0090] The selection module 40 comprises:

[0091] A tenth unit, for comparing the demoulding time with a first time threshold range, and comparing the mold loading time with a second time threshold range;

[0092] An eleventh unit is used for selecting the demolding time as the effective demolding time if the demolding time is within the first time threshold range;

[0093] The twelfth unit is used to select the mold loading time as the effective mold loading time if the mold loading time is within the second time threshold range.

[0094] The present invention also provides a computer, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method for counting the die change time of a manual stamping production line as described in the above technical solution is implemented.

[0095] The present invention also provides a storage medium on which a computer program is stored. When the computer program is executed by a processor, the method for counting the die change time of a stamping manual production line as described in the above technical solution is implemented.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0097] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for counting the die change time of a stamping manual production line, which is used to count the effective die change time, wherein the die change includes a die removal stage and a die installation stage performed in sequence, and is characterized in that: The method for counting die change time of a stamping manual production line comprises the following steps: Detecting the working mode of the manual production line, and determining whether it is necessary to obtain the position of the punching machine slide based on the working mode; If the position of the punching machine slider needs to be obtained, the first start time of the demolding phase is obtained based on the position of the punching machine slider, the first end time of the demolding phase is obtained based on the status information of the workbench, and the demolding time is obtained through the first start time and the first end time; The first end time is selected as the second start time of the die loading stage, and the first position information of the workbench is obtained, and whether a stamping test is required is determined according to the first position information; if the stamping test is required, the completion time of the stamping test is selected as the second end time of the die loading stage, and the die loading time is obtained according to the second start time and the second end time; It is determined whether the demolding time and the mold loading time are the effective demolding time and the effective mold loading time respectively; if the demolding time is the effective demolding time and the mold loading time is the effective mold loading time, the effective demolding time and the effective mold loading time are combined into the mold changing time.

2. The method for counting die change time of a stamping manual production line according to claim 1 is characterized in that: The working mode includes a single production mode and a non-production mode, and the step of determining whether it is necessary to obtain the position of the punching machine slide based on the working mode includes: If the working mode is the single production mode, it is determined that there is no need to obtain the position of the punching machine slide; If the working mode is the non-production mode, it is determined that the position of the punching machine slide needs to be obtained.

3. The method for counting die change time of a stamping manual production line according to claim 1 is characterized in that: The step of obtaining the first start time of the demolding phase based on the position of the punching machine slide is specifically: The real-time position of the punching machine slide is continuously detected until the punching machine slide is located at the top dead center, and this moment is selected as the first starting time of the demolding stage.

4. The method for counting die change time of a stamping manual production line according to claim 1 is characterized in that: The step of obtaining the first end time of the demoulding stage based on the status information of the workbench includes: Acquiring a first pressure signal of the hydraulic fixer and detecting whether the workbench is lifted; If the first pressure signal is zero and the workbench is lifted, obtaining second position information of the workbench, and judging whether the workbench is moved out of the processing area based on the second position information; If the workbench moves out of the processing area, this moment is selected as the first end time of the demolding stage.

5. The method for counting die change time of a stamping manual production line according to claim 1 is characterized in that: The step of judging whether stamping detection is required based on the first position information comprises: Determining whether the workbench has moved into a processing area based on the first position information; If the workbench moves into the processing area, continuously acquiring a 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 a stamping test is required.

6. The method for counting die change time of a manual stamping production line according to claim 1 is characterized in that: The step of respectively judging whether the demoulding time and the mold loading time are effective demoulding time and effective mold loading time comprises: Comparing the demolding time with a first time threshold range, and comparing the mold loading time with a second time threshold range; If the demolding time is within the first time threshold range, then it is selected as the effective demolding time; If the mold loading time is within the second time threshold range, it is selected as the effective mold loading time.

7. The method for counting die change time of a stamping manual production line according to claim 6 is characterized in that: The first time threshold range is 120s to 1800s, and the second time threshold range is 180s to 2400s.

8. A stamping manual production line die change time statistics system, applied to the stamping manual production line die change time statistics method as claimed in any one of claims 1 to 7, characterized in that: The system comprises: A first detection module is used to detect the working mode of the manual production line and determine whether it is necessary to obtain the position of the punching machine slide based on the working mode; A second detection module is used for obtaining the first start time of the demolding phase based on the position of the stamping slide, obtaining the first end time of the demolding phase based on the status information of the workbench, and obtaining the demolding time through the first start time and the first end time if the position of the stamping slide needs to be obtained; a third detection module, configured to select the first end time as the second start time of the die loading stage, and obtain the first position information of the workbench, and determine whether a stamping test is required based on the first position information; if a stamping test is required, the completion time of the stamping test is selected as the second end time of the die loading stage, and the die loading time is obtained based on the second start time and the second end time; The selection module is used to respectively determine whether the demolding time and the mold loading time are the effective demolding time and the effective mold loading time. If the demolding time is the effective demolding time and the mold loading time is the effective mold loading time, the effective demolding time and the effective mold loading time are combined into the mold changing time.

9. A computer comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method for counting die change time of a stamping manual production line according to any one of claims 1 to 7 is implemented.

10. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for counting die change time of a stamping manual production line as claimed in any one of claims 1 to 7 is implemented.

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