A multi-step automatic continuous die punching machine and control method

Abstract

The present invention relates to the technical field of stamping machines, and in particular to a multi-step automatic continuous die stamping machine and a control method, wherein the stamping machine comprises a supporting mechanism; a detecting mechanism, comprising a first visual detecting device arranged above the front end of a supporting platform for detecting initial state information of a steel plate, a laser sensor arranged above and connected to the supporting platform for detecting the bottom height of the steel plate after stamping, and a second visual detecting device arranged above the rear end of the supporting platform for detecting state information of the steel plate after stamping; a die mechanism, comprising a first die, a second die and a third die arranged below and connected to the die platform for stamping the steel plate; a control structure, which is arranged in a control box in front of the supporting platform; the present invention adopts a plurality of die stamping to improve efficiency, and also reduces waste of resources by improving the accuracy of the control process of the stamping machine.

Description

Technical Field

[0001] The invention relates to the technical field of punching machines, and in particular to a multi-step automatic continuous die punching machine and a control method thereof. Background Art

[0002] Stamping machines are advanced basic processing equipment in modern manufacturing industry, widely used in production departments such as automobile industry, agricultural machinery, household appliances, electronic instruments, national defense industry and daily necessities. However, most traditional stamping machines use a single mold for stamping, which is not only inefficient but also increases the risk of raw material transportation during the stamping process.

[0003] Chinese patent application publication number: CN101421095A discloses a control device for a stamping machine, which includes: a motor; a rotating body driven by the motor to rotate and converting the rotational motion into reciprocating motion; and a slider connected to the conversion mechanism for reciprocating motion, wherein when the motor is rotated at a constant command speed, the actual torque of the motor varies with the rotation angle of the rotating body, wherein the control device of the stamping machine includes: an angle detection device for detecting the rotation angle of the rotating body; a torque determination device for determining the required motor torque corresponding to the characteristics of the stamping machine based on the value of the rotation angle input from the angle detection device; and a speed adjustment device for increasing the rotation command speed of the motor from the constant command speed when the rotation angle of the rotating body is an angle at which the required motor torque is less than a predetermined motor torque reference value.

[0004] It can be seen that the existing technology has the problem that the working mode of the stamping machine is single and the control of the working process of the stamping machine is not precise enough, resulting in a large number of unqualified waste products and causing waste of resources. Summary of the invention

[0005] To this end, the present invention provides a multi-step automatic continuous die punching machine and a control method to overcome the problems in the prior art of the single working mode of the punching machine and the inaccurate control of the working process of the punching machine, which leads to a large amount of unqualified waste and waste of resources.

[0006] To achieve the above object, the present invention provides a multi-step automatic continuous die punching machine, comprising:

[0007] The supporting mechanism includes a supporting platform arranged at the bottom to support the punching machine, a plurality of supporting columns arranged above the supporting platform and connected to the supporting platform to support the steel plate, a plurality of supporting rods arranged above the supporting platform and connected to the supporting platform to support the visual inspection device, and a plurality of hydraulic rods arranged above the supporting platform and connected to the supporting platform to drive the mold table to move vertically;

[0008] The detection mechanism includes a first visual detection device arranged above the front end of the support platform for detecting the initial state information of the steel plate, a laser sensor arranged above the support platform and connected to the support platform for detecting the bottom height of the steel plate after stamping, and a second visual detection device arranged above the rear end of the support platform for detecting the state information of the steel plate after stamping;

[0009] The die mechanism comprises a first die, a second die and a third die which are arranged below the die table and connected to the die table and are used for stamping the steel plate;

[0010] The control structure is arranged in a control box in front of the support platform, and includes:

[0011] A data analysis module, which is used to determine the transmission state of the steel plate according to the eligibility of the initial state of the steel plate detected by the first visual inspection device;

[0012] A control module connected to the data analysis module for determining the working state of the punching machine according to the bottom height of the punched steel plate processing area detected by the laser sensor;

[0013] The adjustment module is connected to the control module and is used to determine the adjustment of the working process of the punching machine according to the frequency of occurrence of unqualified steel plates after punching detected by the second visual inspection device.

[0014] Further, the data analysis module determines that the transmission state of the steel plate is transmission under the condition that the initial state of the steel plate is qualified; the data analysis module determines that the transmission state of the steel plate is stop under the condition that the initial state of the steel plate is unqualified.

[0015] Furthermore, the data analysis module determines that the initial state of the steel plate is qualified based on the comparison result that the initial state evaluation value of the steel plate is less than the preset initial state evaluation value, and the data analysis module determines that the initial state of the steel plate is unqualified based on the comparison result that the initial state evaluation value of the steel plate is greater than or equal to the preset initial state evaluation value.

[0016] Furthermore, when the data analysis module determines that the transmission state of the steel plate is transmission, the control module determines that the punching machine maintains its original state according to the comparison result that the bottom height of the steel plate processing area is greater than or equal to the preset bottom height, and the control module determines that the punching machine stops urgently according to the comparison result that the bottom height of the steel plate processing area is less than the preset bottom height.

[0017] Furthermore, under the condition that the control module controls the punching machine to maintain its original state, the adjustment module determines to adjust the working process of the punching machine according to the comparison result that the frequency of unqualified steel plates after punching within a preset time is greater than or equal to a preset frequency.

[0018] Furthermore, the adjustment module determines that the stamped steel plate is qualified based on a comparison result in which the similarity between the stamped steel plate and the steel plate in the database is greater than or equal to a preset similarity, and the adjustment module determines that the stamped steel plate is unqualified based on a comparison result in which the similarity between the stamped steel plate and the steel plate in the database is less than a preset similarity.

[0019] Furthermore, under the condition of determining that the working process of the stamping machine needs to be adjusted, the adjustment module determines to stop the stamping machine according to the comparison result that the working time of the stamping machine is greater than or equal to the preset working time, and the adjustment module determines to make a secondary determination on the adjustment method of the working process of the stamping machine according to the comparison result that the working time of the stamping machine is less than the preset working time.

[0020] Furthermore, under the condition of making a secondary judgment on the adjustment method of the working process of the stamping machine, the adjustment module determines to adjust the preset bottom height with a first adjustment coefficient based on the comparison result that the integrity of the unqualified steel plate after stamping is greater than or equal to the preset integrity.

[0021] Furthermore, under the condition of making a secondary judgment on the adjustment method of the working process of the stamping machine, the adjustment module determines to adjust the preset initial state evaluation value with a second adjustment coefficient according to the comparison result that the integrity of the unqualified steel plate after stamping is less than the preset integrity.

[0022] Furthermore, a control method applied to the multi-step automatic continuous die punching machine comprises:

[0023] The data analysis module determines the eligibility of the initial state according to the roughness and chromaticity value of the steel plate to be punched, and determines the working state of the punching machine according to the eligibility of the initial state;

[0024] The control module determines the qualification of the stamping process according to the bottom height of the steel plate after stamping, and controls the working state of the stamping machine according to the qualification of the stamping process;

[0025] The adjustment module determines the eligibility of the stamped steel plate by the similarity between the stamped steel plate and the steel plates in the database, and determines the adjustment of the working process of the stamping machine according to the frequency of occurrence of unqualified steel plates after stamping;

[0026] The adjustment module determines the adjustment method for the working process of the punching machine according to the working time of the punching machine and the integrity of the steel plate.

[0027] Compared with the prior art, the beneficial effect of the present invention lies in that the stamping machine of the present invention includes multiple working-step molds and has an automatic feeding system. The material can be stamped in multiple working steps in a single mold to form the required product, thereby reducing material handling and intermediate processing links, reducing production costs and time, and controlling the entire stamping process through a PLC program to achieve precise control of each working step and coordination of the action sequence, thereby ensuring the stability of the stamping process and the consistency of the product, and providing a stamping equipment with high production efficiency, high precision and high reliability.

[0028] Furthermore, the present invention determines the initial state evaluation value of the steel plate to be stamped by setting a first visual inspection device to detect the roughness and chromaticity value of the steel plate to be stamped. If the initial state evaluation value is greater than or equal to the preset initial state evaluation value, it means that the steel plate to be stamped is rough or has quality defects, and the data analysis module determines that the transportation state of the steel plate to be stamped is stopped. If the initial state evaluation value is less than the preset initial state evaluation value, it means that the steel plate to be stamped has good quality, and the data analysis module determines that the transportation state of the steel plate to be stamped is transmitted. By analyzing the roughness of the steel plate to be stamped, it is possible to avoid damage to the mold and waste of resources during the stamping process due to the large roughness of the steel plate to be stamped. By analyzing the chromaticity value of the steel plate to be stamped, it is possible to avoid the phenomenon that the steel plate to be stamped is broken during the stamping process due to quality defects caused by large differences in the chromaticity values ​​of the steel plates, causing damage to the mold and the support column. The above method improves the accuracy of the analysis of the working process of the stamping machine, thereby improving the intelligence and reliability of the working process of the stamping machine.

[0029] Furthermore, the present invention determines the working state of the punching machine according to the bottom height of the steel plate after stamping through the control module. If the bottom height of the steel plate after stamping is less than the preset bottom height, it means that the steel plate after stamping is broken, and the control module determines to control the punching machine to stop urgently. If the bottom height of the steel plate after stamping is greater than or equal to the preset bottom height, the control module controls the punching machine to maintain its original state. The above method avoids the phenomenon of damage to the support column caused by the breakage of the steel plate during the stamping process, improves the accuracy of the analysis of the working process of the punching machine, and reduces resource waste.

[0030] Furthermore, the present invention determines the qualification of the stamped steel plate according to the similarity between the stamped steel plate and the steel plate in the database through an adjustment module, and determines the qualification of the stamped steel plate by analyzing the contour trajectory, chromaticity value and position of the steel plate, thereby improving the accuracy of judging the qualification of the stamped steel plate. The adjustment module determines the adjustment of the working process of the stamping machine based on the comparison result of the frequency of occurrence of unqualified steel plates after stamping within a preset time and the preset frequency. If the frequency is greater than or equal to the preset frequency, it means that a large number of unqualified steel plates appear due to a failure of the stamping machine, and the working process of the stamping machine needs to be adjusted. The above method improves the accuracy of controlling the working process of the stamping machine and reduces resource waste.

[0031] Furthermore, the present invention determines the adjustment method of the working process of the stamping machine according to the comparison result of the working time of the stamping machine with the preset working time through the adjustment module. If the working time is greater than or equal to the preset working time, it means that the stamping machine has increased friction, heat accumulation or material deformation due to the long working time, resulting in unqualified stamping parts. The adjustment module determines to stop the stamping machine. If the working time is less than the preset working time, the adjustment module determines to reduce the preset bottom height by the first adjustment coefficient according to the integrity of the steel plate after stamping is greater than or equal to the preset integrity. The adjustment module determines to increase the preset initial state evaluation value by the second adjustment coefficient according to the integrity of the steel plate after stamping is less than the preset integrity. The above method is used to improve the accuracy of the control of the working process of the stamping machine and reduce resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a multi-step automatic continuous die punching machine according to an embodiment of the present invention;

[0033] Figure 2 It is a structural schematic diagram of a control mechanism of a multi-step automatic continuous die punching machine according to an embodiment of the present invention;

[0034] Figure 3 A flowchart for determining the initial state eligibility of a steel plate by a multi-step automatic continuous die punching machine according to an embodiment of the present invention;

[0035] Figure 4 This is a working flow chart of a multi-step automatic continuous die punching machine control method according to an embodiment of the present invention;

[0036] In the figure, 1-first visual inspection device, 2-support rod, 3-support column, 4-steel plate, 5-support table, 6-control box, 7-second visual inspection device, 8-hydraulic rod, 9-mold table, 10-first mold, 11-second mold, 12-third mold, 13-laser sensor. DETAILED DESCRIPTION

[0037] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0039] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0040] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] See also Figure 1-Figure 3 As shown, Figure 1 It is a structural schematic diagram of a multi-step automatic continuous die punching machine according to an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a control mechanism of a multi-step automatic continuous die punching machine according to an embodiment of the present invention; Figure 3 The present invention is a flowchart of a multi-step automatic continuous die punching machine for determining the initial state qualification of a steel plate.

[0042] An embodiment of the present invention provides a multi-step automatic continuous die punching machine, comprising:

[0043] The supporting mechanism includes a supporting platform 5 arranged at the bottom to support the punching machine, a plurality of supporting columns 3 arranged above the supporting platform and connected to the supporting platform to support the steel plate 4, a plurality of supporting rods 2 arranged above the supporting platform and connected to the supporting platform to support the visual inspection device, and a plurality of hydraulic rods 8 arranged above the supporting platform and connected to the supporting platform to drive the mold table 9 to move vertically;

[0044] The detection mechanism includes a first visual detection device 1 disposed above the front end of the support platform 5 for detecting the initial state information of the steel plate, a laser sensor 13 disposed above the support platform and connected to the support platform for detecting the bottom height of the steel plate after stamping, and a second visual detection device 7 disposed above the rear end of the support platform 5 for detecting the state information of the steel plate after stamping;

[0045] The die mechanism includes a first die 10, a second die 11 and a third die 12 which are arranged below the die table and connected to the die table for punching the steel plate;

[0046] The control structure, which is arranged in the control box 6 in front of the support platform, includes:

[0047] A data analysis module, which is used to determine the transmission state of the steel plate according to the eligibility of the initial state of the steel plate detected by the first visual inspection device;

[0048] A control module connected to the data analysis module for determining the working state of the punching machine according to the bottom height of the punched steel plate processing area detected by the laser sensor;

[0049] The adjustment module is connected to the control module and is used to determine the adjustment of the working process of the punching machine according to the frequency of occurrence of unqualified steel plates after punching detected by the second visual inspection device.

[0050] In the embodiment of the present invention, the first visual inspection device and the second visual inspection device can use Hikvision industrial cameras, and the initial state information is not limited to "roughness information, color value information and position information". The first mold, the second mold and the third mold are not limited to "punching mold, shearing mold, bending mold, stretching mold and forming mold".

[0051] Specifically, the stamping machine of the present invention includes multiple working-step molds and has an automatic feeding system. The material can be stamped through multiple working steps in a single mold to form the desired product, thereby reducing material handling and intermediate processing links, reducing production costs and time, and controlling the entire stamping process through a PLC program to achieve precise control of each working step and coordination of the action sequence, thereby ensuring the stability of the stamping process and the consistency of the product, and providing a stamping equipment with high production efficiency, high precision and high reliability.

[0052] Specifically, the data analysis module determines the eligibility of the initial state of the steel plate according to the comparison result of the initial state evaluation value P of the steel plate and the preset initial state evaluation value P0;

[0053] If P<P0, the data analysis module determines that the initial state of the steel plate is qualified;

[0054] If P≥P0, the data analysis module determines that the initial state of the steel plate is unqualified;

[0055] Among them, the preset initial state evaluation value P0 is the historical average value of the initial state evaluation value of the steel plate when the punching machine works normally, but the above value is not limited to this, and technicians in this field can also adjust the value according to actual needs.

[0056] Specifically, the initial state evaluation value P is calculated by the following formula:

[0057] ;

[0058] Its value, M0 represents the preset roughness, M represents the roughness of the steel plate, S0 represents the preset chromaticity value, and S represents the chromaticity value of the steel plate.

[0059] In the embodiment of the present invention, the value of the preset roughness M0 is the historical average value of the roughness of the steel plate measured when the punching machine is working normally under a uniform light source, and the value of the preset chromaticity value S0 is the chromaticity value of the same batch of steel plates with a clean surface and no dust, stains or other impurities measured under a uniform light source using a spectrocolorimeter.

[0060] Specifically, the data analysis module determines that the transmission state of the steel plate is transmission under the condition that the initial state of the steel plate is qualified;

[0061] The data analysis module determines that the transmission state of the steel plate is stopped under the condition that the initial state of the steel plate is determined to be unqualified.

[0062] Specifically, the present invention sets a first visual inspection device to detect the roughness and chromaticity value of the steel plate to be stamped to determine the initial state evaluation value of the steel plate to be stamped. If the initial state evaluation value is greater than or equal to the preset initial state evaluation value, it means that the steel plate to be stamped is rough or has quality defects, and the data analysis module determines that the transportation state of the steel plate to be stamped is stopped. If the initial state evaluation value is less than the preset initial state evaluation value, it means that the steel plate to be stamped has good quality, and the data analysis module determines that the transportation state of the steel plate to be stamped is transmitted. By analyzing the roughness of the steel plate to be stamped, it is possible to avoid damage to the mold and waste of resources during the stamping process due to the large roughness of the steel plate to be stamped. By analyzing the chromaticity value of the steel plate to be stamped, it is possible to avoid the phenomenon that the steel plate to be stamped during the stamping process is broken and the mold and the support column are damaged due to quality defects caused by large differences in the chromaticity values ​​of the steel plates. The above method improves the accuracy of the analysis of the working process of the stamping machine, thereby improving the intelligence and reliability of the working process of the stamping machine.

[0063] Specifically, the data analysis module determines that the transmission state of the steel plate is transmission, and the control module determines the working state of the punching machine according to the comparison result of the bottom height H of the steel plate processing area and the preset bottom height H0;

[0064] If H≥H0, the control module controls the punching machine to maintain the original state;

[0065] If H<H0, the control module controls the stamping machine to stop urgently;

[0066] Among them, the preset value of the bottom height H0 is the historical average value of the bottom height of the same batch of steel plates during the stamping process, but the above value is not limited to this, and technical personnel in this field can also adjust the value according to actual needs.

[0067] Specifically, the present invention determines the working state of the punching machine according to the bottom height of the steel plate after stamping through the control module. If the bottom height of the steel plate after stamping is less than the preset bottom height, it means that the steel plate after stamping is broken, and the control module determines to control the punching machine to stop urgently. If the bottom height of the steel plate after stamping is greater than or equal to the preset bottom height, the control module controls the punching machine to maintain its original state. The above method avoids the phenomenon of damage to the support column caused by the breakage of the steel plate during the stamping process, improves the accuracy of the analysis of the working process of the punching machine, and reduces resource waste.

[0068] Specifically, the control module controls the punching machine to maintain its original state, and the adjustment module determines the adjustment of the working process of the punching machine, including determining the adjustment of the working process of the punching machine according to the comparison result of the frequency F of unqualified steel plates appearing after punching within a preset time and the preset frequency F0;

[0069] If F≥F0, the adjustment module determines to adjust the working process of the punching machine;

[0070] If F<F0, the adjustment module determines not to adjust the working process of the punching machine;

[0071] The value of the preset frequency F0 is the average value of the frequency of defective products when the punching machine works normally during several preset periods of time, but the above value is not limited to this. Technical personnel in this field can also adjust the value according to actual needs.

[0072] The preset time in the embodiment of the present invention is set to the historical average value of the normal working time of the punching machine, but the above value is not limited thereto, and those skilled in the art can also adjust the value according to actual needs.

[0073] Specifically, the adjustment module determines the eligibility of the stamped steel plate according to the comparison result between the similarity R of the stamped steel plate and the steel plate in the database and the preset similarity R0;

[0074] If R≥R0, the adjustment module determines that the stamped steel plate is qualified;

[0075] If R<R0, the adjustment module determines that the stamped steel plate is unqualified;

[0076] Among them, the preset similarity R0 value is the historical average value of the similarity between the steel plates that have passed the stamping and the steel plates in the database, but the above value is not limited to this, and technical personnel in this field can also adjust the value according to actual needs.

[0077] The similarity between the stamped steel plate and the steel plate in the database in the embodiment of the present invention includes but is not limited to "similar contour trajectories, similar chromaticity values ​​and similar positions".

[0078] Specifically, the present invention determines the qualification of the stamped steel plate according to the similarity between the stamped steel plate and the steel plate in the database through an adjustment module, and determines the qualification of the stamped steel plate by analyzing the contour trajectory, chromaticity value and position of the steel plate, thereby improving the accuracy of judging the qualification of the stamped steel plate. The adjustment module determines the adjustment of the working process of the stamping machine based on the comparison result of the frequency of occurrence of unqualified steel plates after stamping within a preset time and the preset frequency. If the frequency is greater than or equal to the preset frequency, it means that a large number of unqualified steel plates appear due to a failure of the stamping machine, and the working process of the stamping machine needs to be adjusted. The above method improves the accuracy of controlling the working process of the stamping machine and reduces resource waste.

[0079] Specifically, under the condition that the working process of the punching machine is adjusted, the adjustment module determines the adjustment method of the working process of the punching machine according to the comparison result of the working time T of the punching machine and the preset working time T0;

[0080] If T≥T0, the adjustment module determines to adjust the working process of the punching machine in a first adjustment manner;

[0081] If T<T0, the adjustment module determines to make a secondary determination on the adjustment method of the working process of the punching machine;

[0082] Among them, the value of the preset working time T0 is the historical average value of the normal working time of the punching machine, but the above value is not limited to this, and technical personnel in this field can also adjust the value according to actual needs.

[0083] Specifically, the adjustment module determines the adjustment method for the working process of the stamping machine according to the comparison result between the integrity D of the unqualified steel plate after stamping and the preset integrity D0 under the condition of determining the secondary judgment of the adjustment method for the working process of the stamping machine;

[0084] If D≥D0, the adjustment module determines to adjust the working process of the punching machine in a second adjustment manner;

[0085] If D<D0, the adjustment module determines to adjust the working process of the punching machine in a third adjustment manner.

[0086] The integrity described in the embodiment of the present invention is the area of ​​the steel plate after stamping, and the preset value of the integrity D0 is the area of ​​the qualified steel plate after stamping.

[0087] Specifically, the adjustment module determines to stop the punching machine under the condition that the working process of the punching machine is adjusted in the first adjustment mode;

[0088] Under the condition that the adjustment module determines to adjust the working process of the punching machine in the second adjustment mode, the adjustment module determines to adjust the preset bottom height in accordance with the first adjustment coefficient K1;

[0089] Under the condition that the adjustment module determines to adjust the working process of the punching machine in the third adjustment mode, the adjustment module determines to adjust the preset initial state evaluation value in accordance with the second adjustment coefficient K2.

[0090] Specifically, the first adjustment coefficient K1 is calculated and set by the following formula:

[0091] ;

[0092] Specifically, the second adjustment coefficient K2 is calculated and set by the following formula:

[0093] ;

[0094] Set the adjusted preset bottom height to H0'=K1×H0;

[0095] The adjusted preset initial state evaluation value is set to P0'=K2×P0.

[0096] Specifically, the present invention determines the adjustment method of the working process of the stamping machine according to the comparison result of the working time of the stamping machine with the preset working time through the adjustment module. If the working time is greater than or equal to the preset working time, it means that the stamping machine has increased friction, heat accumulation or material deformation due to the long working time, resulting in unqualified stamping parts. The adjustment module determines to stop the stamping machine. If the working time is less than the preset working time, the adjustment module determines to reduce the preset bottom height by the first adjustment coefficient according to the integrity of the steel plate after stamping is greater than or equal to the preset integrity. The adjustment module determines to increase the preset initial state evaluation value by the second adjustment coefficient according to the integrity of the steel plate after stamping is less than the preset integrity. The above method is used to improve the accuracy of the control of the working process of the stamping machine and reduce resource waste.

[0097] See also Figure 4 As shown, Figure 4 The present invention is a flowchart of a multi-step automatic continuous die punching machine control method according to an embodiment of the present invention.

[0098] Specifically, a control method applied to the multi-step automatic continuous die punching machine includes:

[0099] Step S1, the data analysis module determines the eligibility of the initial state according to the roughness and chromaticity value of the steel plate to be punched, and determines the working state of the punching machine according to the eligibility of the initial state;

[0100] Step S2, the control module determines the qualification of the stamping process according to the bottom height of the steel plate after stamping, and controls the working state of the stamping machine according to the qualification of the stamping process;

[0101] Step S3, the adjustment module determines the eligibility of the stamped steel plate by the similarity between the stamped steel plate and the steel plates in the database, and determines the adjustment of the working process of the stamping machine according to the frequency of occurrence of unqualified steel plates after stamping;

[0102] Step S4, the adjustment module determines the adjustment method for the working process of the punching machine according to the working time of the punching machine and the integrity of the steel plate.

[0103] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-step automatic continuous die punching machine, characterized in that: include: The supporting mechanism includes a supporting platform arranged at the bottom to support the punching machine, a plurality of supporting columns arranged above the supporting platform and connected to the supporting platform to support the steel plate, a plurality of supporting rods arranged above the supporting platform and connected to the supporting platform to support the visual inspection device, and a plurality of hydraulic rods arranged above the supporting platform and connected to the supporting platform to drive the mold table to move vertically; The detection mechanism includes a first visual detection device arranged above the front end of the support platform for detecting the initial state information of the steel plate, a laser sensor arranged above the support platform and connected to the support platform for detecting the bottom height of the steel plate after stamping, and a second visual detection device arranged above the rear end of the support platform for detecting the state information of the steel plate after stamping; The die mechanism comprises a first die, a second die and a third die which are arranged below the die table and connected to the die table and are used for stamping the steel plate; The control structure is arranged in a control box in front of the support platform, and includes: A data analysis module, which is used to determine the transmission state of the steel plate according to the eligibility of the initial state of the steel plate detected by the first visual inspection device; A control module connected to the data analysis module for determining the working state of the punching machine according to the bottom height of the punched steel plate processing area detected by the laser sensor; An adjustment module, which is connected to the control module and is used to determine the adjustment of the working process of the punching machine according to the frequency of occurrence of unqualified steel plates after punching detected by the second visual inspection device; The control module controls the punching machine to maintain its original state, and the adjustment module determines to adjust the working process of the punching machine according to the comparison result that the frequency of unqualified steel plates after punching within a preset time is greater than or equal to the preset frequency; The adjustment module determines that the stamped steel plate is qualified according to the comparison result that the similarity between the stamped steel plate and the steel plate in the database is greater than or equal to the preset similarity, and the adjustment module determines that the stamped steel plate is unqualified according to the comparison result that the similarity between the stamped steel plate and the steel plate in the database is less than the preset similarity; The adjustment module, under the condition of determining that the working process of the punching machine is to be adjusted, determines to stop the punching machine according to the comparison result that the working time of the punching machine is greater than or equal to the preset working time, and determines to make a secondary determination on the adjustment method of the working process of the punching machine according to the comparison result that the working time of the punching machine is less than the preset working time; The adjustment module determines to adjust the preset bottom height by a first adjustment coefficient according to a comparison result that the integrity of the unqualified steel plate after stamping is greater than or equal to the preset integrity under the condition that the adjustment method of the working process of the stamping machine is determined to be secondary judged; Under the condition that the adjustment method of the punching machine working process is determined to be secondary judged, the adjustment module determines to adjust the preset initial state evaluation value with a second adjustment coefficient according to the comparison result that the integrity of the unqualified steel plate after stamping is less than the preset integrity.

2. The multi-step automatic continuous die punching machine according to claim 1, characterized in that: The data analysis module determines that the transmission state of the steel plate is transmission if the initial state of the steel plate is qualified; the data analysis module determines that the transmission state of the steel plate is stop if the initial state of the steel plate is unqualified.

3. The multi-step automatic continuous die punching machine according to claim 2, characterized in that: The data analysis module determines that the initial state of the steel plate is qualified based on the comparison result that the initial state evaluation value of the steel plate is less than the preset initial state evaluation value, and the data analysis module determines that the initial state of the steel plate is unqualified based on the comparison result that the initial state evaluation value of the steel plate is greater than or equal to the preset initial state evaluation value.

4. The multi-step automatic continuous die punching machine according to claim 3, characterized in that: When the data analysis module determines that the transmission state of the steel plate is transmission, the control module determines that the punching machine maintains the original state according to the comparison result that the bottom height of the steel plate processing area is greater than or equal to the preset bottom height, and the control module determines that the punching machine stops urgently according to the comparison result that the bottom height of the steel plate processing area is less than the preset bottom height.

5. A control method for the multi-step automatic continuous die punching machine according to any one of claims 1 to 4, comprising: The data analysis module determines the eligibility of the initial state according to the roughness and chromaticity value of the steel plate to be punched, and determines the working state of the punching machine according to the eligibility of the initial state; The control module determines the eligibility of the stamping process according to the bottom height of the steel plate after stamping, and controls the working state of the stamping machine according to the eligibility of the stamping process; The adjustment module determines the eligibility of the stamped steel plate by the similarity between the stamped steel plate and the steel plates in the database, and determines the adjustment of the working process of the stamping machine according to the frequency of occurrence of unqualified steel plates after stamping; The adjustment module determines the adjustment method for the working process of the punching machine according to the working time of the punching machine and the integrity of the steel plate.

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