CN111687247B - Control method and device suitable for automatic plate rolling machine - Google Patents
Control method and device suitable for automatic plate rolling machine Download PDFInfo
- Publication number
- CN111687247B CN111687247B CN202010548521.6A CN202010548521A CN111687247B CN 111687247 B CN111687247 B CN 111687247B CN 202010548521 A CN202010548521 A CN 202010548521A CN 111687247 B CN111687247 B CN 111687247B
- Authority
- CN
- China
- Prior art keywords
- lifting roller
- value
- displacement value
- difference
- displacement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/004—Bending sheet metal along straight lines, e.g. to form simple curves with program control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides a control method and a device suitable for an automatic plate bending machine, wherein the method comprises the following steps: acquiring a first displacement value of a first end of a lifting roller and a second displacement value of a second end of the lifting roller in real time; calculating a difference between the first displacement value and the second displacement value; and adjusting the motion states of the first end and the second end of the lifting roller in real time according to the setting conditions of real-time regulation and control of the lifting roller on the basis of the data and the related parameter setting values of the plate bending machine. The device comprises a controller, a human-computer interaction terminal and a monitoring unit; the controller receives a control instruction input by the human-computer interaction terminal and controls the plate bending machine to move according to the control instruction; the monitoring unit is respectively connected with the controller and the human-computer interaction terminal; the monitoring unit is used for monitoring the first displacement value and the second displacement value in real time; the controller adjusts the motion states of the first end and the second end of the lifting roller in real time. The invention is used for solving the problem of overlarge processing error caused by the fact that the running difference value of the two ends of the lifting roller exceeds the preset range.
Description
Technical Field
The invention relates to the field of automatic control of plate rolling machines, in particular to a control method and a control device suitable for an automatic plate rolling machine.
Background
The plate bending machine is a device for bending and forming a plate by using a working roll, can form parts in different shapes such as a cylindrical part, a conical part and the like, and is very important processing equipment. The working principle of the plate bending machine is that the working roll moves under the action of external force such as hydraulic pressure, mechanical force and the like, so that the plate is bent or rolled and formed. According to the rotary motion and the position change of the working rollers with different shapes, parts such as an elliptical part, an arc part, a cylindrical part and the like can be processed.
The existing automatic plate rolling machine has the control mechanism that: after the parameters are adjusted by the staff, starting a plate rolling machine to roll the plate according to the set parameters; the plate rolling process is to roll the plate in a mode that the lifting roller is controlled by the oil cylinder in a hydraulic mode to move up and down. However, after the plate bending machine is used for a long time, due to the deformation of the whole equipment, the sealing performance of the oil cylinder and other reasons, the two ends of the lifting roller run asynchronously or the running difference value exceeds the preset range, so that the machining error is too large, and the production efficiency is influenced.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention provides a control method and a control device suitable for an automatic plate bending machine, which are used for solving the problem of machining errors caused by asynchronous operation at two ends of a lifting roller or operation difference values exceeding a preset range in the prior art.
In order to achieve the above objects and other objects, the present invention provides a control method for an automatic plate bending machine, comprising the steps of:
acquiring a first displacement value of a first end of the lifting roller and a second displacement value of a second end of the lifting roller in real time;
calculating a difference between the first displacement value and the second displacement value;
and adjusting the motion states of the first end of the lifting roller and the second end of the lifting roller in real time according to the set conditions of real-time regulation and control of the lifting roller on the basis of the first displacement value, the second displacement value, the difference value of the first displacement value and the second displacement value and the related parameter set values of the plate bending machine.
In one embodiment, before the step of acquiring in real time a first displacement value of the first end of the lifting roller and a second displacement value of the second end of the lifting roller, the method further comprises:
and acquiring a related parameter set value of the plate bending machine by taking the plate to be processed as a basis.
In one embodiment, before the step of obtaining the relevant parameter setting values of the plate bending machine based on the substitute machining plate, the method further comprises the following steps:
and acquiring the processing mode of the plate.
In one embodiment, the parameter settings of the rolling machine include: at least one of a first end deviation set value, a second end error set value, a first end error set value, a difference deviation set value of the first end and the second end, and a press-down set value.
In one embodiment, the setting conditions for real-time control of the lifting roller include: a linkage descent condition, a first-end individual descent condition, and a second-end individual descent condition; the linkage lowering condition includes: linkage descending signal and linkage descending starting condition; the first terminal individual descent condition includes: a first-end individual falling signal and a first-end individual falling starting condition; the second end individual descent condition includes: the second terminal single falling signal and the second terminal single falling starting condition.
In one embodiment, the linkage lowering start condition is:
the difference between the second displacement value and the set value of the depression is greater than the set deviation of the second end; and is
The difference between the first displacement value and the set value of the depression is larger than the set deviation of the first end; and is
The absolute value of the difference between the second displacement value and the first displacement value is smaller than the difference deviation set value of the first end and the second end.
In one embodiment, the first-end individual descent start conditions are:
the difference between the first displacement value and the depression set value is greater than the first end deviation set value; and the difference between the first end and the second end is greater than the difference deviation set value.
In one embodiment, the second end-only descent start condition is:
the difference between the second displacement value and the depression set value is greater than the second end deviation set value; and the second displacement value minus the first displacement value is greater than a difference deviation set value of the first end and the second end.
To achieve the above and other objects, the present invention also provides an apparatus for performing the method, the apparatus being used for controlling a plate bending machine, characterized in that the apparatus comprises: the system comprises a controller, a human-computer interaction terminal and a monitoring unit; the controller receives a control instruction input by the human-computer interaction terminal and controls the plate rolling machine to move according to the control instruction; the monitoring unit is respectively connected with the controller and the man-machine interaction terminal; the monitoring unit is used for monitoring a first displacement value of the first end of the lifting roller and a second displacement value of the second end of the lifting roller in real time; and the controller adjusts the motion states of the first end and the second end of the lifting roller in real time according to the data monitored by the detection unit, the control instruction acquired by the human-computer interaction terminal and the set conditions of real-time regulation and control of the lifting roller.
In one embodiment, the monitoring unit comprises: the pulse encoder adopts a counting mode as follows: absolute value counting manner.
In conclusion, the invention has the following beneficial effects: the technical scheme of the invention obtains a first displacement value of a first end of the lifting roller and a second displacement value of a second end of the lifting roller in real time; and the controller adjusts the motion states of the first end of the lifting roller and the second end of the lifting roller in real time according to the setting conditions of real-time regulation and control of the lifting roller by taking the first displacement value, the second displacement value, the difference value of the first displacement value and the second displacement value and the related parameter setting value of the plate rolling machine as the basis so as to ensure that the running states and running deviations of the two ends of the lifting roller are within the preset range and realize the synchronous motion of the two ends of the lifting roller. Through the technical scheme, the operation errors at the two ends of the lifting roller can be controlled within 0.01mm, so that the processing error of a product is controlled within a qualified range.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are schematic and are not to be understood as limiting the invention in any way, and in which:
fig. 1 is a flow chart of a method according to an embodiment of the invention.
Fig. 2 is a flowchart illustrating a method according to an embodiment of the invention.
FIG. 3 is a flowchart illustrating a zeroing step according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of an apparatus according to an embodiment of the invention.
Fig. 5 is a schematic diagram of a human-computer interaction terminal according to an embodiment of the invention.
Fig. 6 is a schematic diagram of a zero-point calibration interface according to an embodiment of the invention.
Fig. 7 is a schematic diagram of a setting page interface according to an embodiment of the present invention.
Description of the element reference
Detailed Description
The following embodiments of the present invention are provided by specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present invention. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It should be noted that the drawings provided in the present embodiment are only for schematically illustrating the basic idea of the present invention, and although the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation, the form, quantity and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated. The structures, proportions, and dimensions shown in the drawings and described in the specification are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, so as not to obscure the disclosure with details that will be readily apparent to those skilled in the art, and it is not intended to limit the scope of the present invention to the exact construction and modification, or to change the proportions, or to modify the dimensions, without affecting the efficacy and attainment of the same. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1, the present invention provides a control method for an automatic plate rolling machine, including the steps of: s1, acquiring a first displacement value of the first end of the lifting roller and a second displacement value of the second end of the lifting roller in real time; s2, calculating the difference between the first displacement value and the second displacement value; and S3, adjusting the motion states of the first end of the lifting roller and the second end of the lifting roller in real time according to the setting conditions of real-time regulation and control of the lifting roller by taking the first displacement value, the second displacement value, the difference value between the first displacement value and the second displacement value and the related parameter setting values of the plate rolling machine as the basis until the first displacement value, the second displacement value and the difference value between the first displacement value and the second displacement value accord with the preset conditions.
The first end and the second end of the lifting roller are respectively the end of the lifting roller facing to a fixed side and the end of the lifting roller facing to a turnover side, wherein the fixed side refers to one side of the automatic plate rolling machine for fixing the lifting roller (the lifting roller is a roller capable of running up and down in the plate rolling machine) and a bearing roller (the bearing roller is a roller for bearing in the plate rolling machine), and the lifting roller cannot be turned over; the turnover side refers to the side which can be used for taking out the workpiece from the side after turnover through the action of the turnover oil cylinder on the automatic plate rolling machine.
In different embodiments of the invention, the difference between the first displacement value and the second displacement value can be calculated by monitoring the first displacement value and the second displacement value at two ends of the lifting roller in real time; and then comparing the three data with the set conditions of real-time regulation and control of the lifting roller, and adjusting the motion states of the two ends of the lifting roller in real time by using a controller according to the set conditions of real-time regulation and control of the lifting roller so as to enable the operation states and the operation deviations of the two ends of the lifting roller to be within the preset conditions, thereby ensuring that the synchronous operation and the operation deviations of the two ends of the lifting roller are within the allowable deviation range, and finally ensuring that the processing error of the product is controlled within the qualified range. Through the technical scheme, the running errors of the two ends of the lifting roller can be controlled within 0.01 mm.
As shown in fig. 2, in one embodiment, before step S1, the method further includes the steps of: and S01, acquiring the processing mode of the plate through the human-computer interaction terminal. The machining mode includes: a barrel processing mode or a cone processing mode.
As shown in fig. 2, in one embodiment, before step S1 and after step S01, the method further includes the steps of: and S02, acquiring the related parameter set value of the plate bending machine according to the plate to be processed. The related parameter setting values of the plate bending machine can comprise: at least one of a first end deviation set value, a second end error set value, a first end error set value, a difference value deviation set value of the first end and the second end, and a press-down set value. The pressing set value is a pressing set value every time.
As shown in fig. 2, in one embodiment, before step S1 and after step S02, the method further includes the steps of: and S03, based on the processing mode, performing zero calibration on the positions of the first end of the lifting roller and the second end of the lifting roller.
As shown in fig. 3, in one embodiment, the zeroing process comprises the steps of: s031, zero calibration is selected on the interface of the zero calibration of the human-computer interaction terminal; s032, moving the lifting roller to a horizontal contact surface of the lifting roller and the bearing roller; s033, zeroing the current position of the first end of the lifting roller and the current position of the second end of the lifting roller.
In one embodiment, when the processing mode is the cone processing mode, after the step of zeroing the positions of the first end of the lifting roller and the second end of the lifting roller according to the processing mode, the method further comprises: and acquiring the height difference between the first end of the lifting roller and the second end of the lifting roller through a human-computer interaction terminal, and adjusting the first end of the lifting roller and the second end of the lifting roller according to the height difference. The height difference between the first end of the lifting roller and the second end of the lifting roller determines the taper of the tapered cylinder, and in one embodiment, the position of the end of the lifting roller facing the turnover side is set to be low.
In one embodiment, when the processing mode is the cone processing mode, the method further includes, after the step of zeroing the positions of the first end of the lifting roller and the second end of the lifting roller based on the processing mode: set up a long time t of awl section of thick bamboo processing through human-computer interaction terminal, the processing speed V1 of the first end of lift roller or the processing speed V2 of lift roller second end, V1 and V2 set up any one can, according to awl section of thick bamboo processing mode and panel, acquire the difference in height h of the first end of lift roller and lift roller second end, the controller acquires the processing speed that the processing speed was not established to the lift roller according to h ═ (V1-V2) t, thereby realized automatically that both ends difference in height has been realized, the step of artifical adjustment difference in height has been saved. The height difference h between the first end of the lifting roller and the second end of the lifting roller can be calculated according to the plate and technological parameters, and a worker can adjust the calculation result of the height difference according to the work experience and input the correction value of the height difference through the human-computer interaction terminal. By setting the height difference correction value input option at the human-computer interaction terminal, the occurrence probability of the increase of the processing error of the plate caused by equipment aging or other reasons in the processing process can be further reduced, and the quality of the formed plate is ensured. The step realizes the processing of the taper from 0 to the required taper through the fixed speed difference at the two ends.
In a certain practical mode, the method further includes, when the machining mode is the conical tube machining mode, after the step of zeroing the positions of the first end of the lifting roller and the second end of the lifting roller based on the machining mode, the steps of: the method comprises the steps that a man-machine interaction terminal is used for setting the machining time t of the cone, the oil flow Q1 of the oil cylinder at the first end of the lifting roller or the oil flow Q2 of the oil cylinder at the second end of the lifting roller, and Q1 and Q2 can be set to be any one, the height difference h between the first end of the lifting roller and the second end of the lifting roller is obtained according to the cone machining mode and a plate, a controller obtains the oil flow of the oil cylinder at the end, where the oil flow of the oil cylinder is not set, of the lifting roller according to h ═ Q1-Q2) t \ A, wherein A is the sectional area of the oil cylinder, and the height difference between two ends is automatically realized, and the step of manually adjusting the height difference is omitted. The height difference h between the first end of the lifting roller and the second end of the lifting roller can be calculated according to the plate and technological parameters, and the correction value of the height difference can be input by a worker through a human-computer interaction terminal according to the working experience and the calculation result of the height difference. By setting the height difference correction value input option at the human-computer interaction terminal, the occurrence probability of increased processing errors of the plate due to equipment aging or other reasons in the processing process can be further reduced, and the quality of the plate after being formed is ensured. In the step, the taper is processed from 0 to the required taper by fixing the speed difference at two ends.
In one embodiment, the setting conditions for real-time control of the lifting roller in step S3 include: a linkage descent condition, a first-end individual descent condition, and a second-end individual descent condition; the linkage lowering condition includes: linkage descending signal and linkage descending starting condition; the first-end-individual-descent condition includes: a first-end individual falling signal and a first-end individual falling start condition; the second-end-individual-descent condition includes: the second terminal single falling signal and the second terminal single falling start condition.
In one embodiment, the linked-down signal includes: the device comprises a lifting roller operation starting signal, a falling edge signal of a lifting roller first end independent falling relay or a falling edge signal of a lifting roller second end independent falling relay. The linkage descending starting conditions are as follows: the difference between the second displacement value and the set value of the depression is greater than the set deviation of the second end; and the difference between the first displacement value and the set value of the depression is larger than the set deviation of the first end; and the absolute value of the difference between the second displacement value and the first displacement value is smaller than the difference deviation set value between the first end and the second end.
And when the controller receives the linkage descending signal and meets the linkage descending starting condition, the controller controls the lifting roller of the automatic plate rolling machine to descend in a linkage manner, and the linkage descending is realized by descending the first end of the lifting roller and the second end of the lifting roller together.
In one embodiment, the first terminal-individual-falling signal includes: and a lifting roller operation starting signal or a falling edge signal for linkage falling. The starting conditions for the first end to descend alone are as follows: the difference between the first displacement value and the depression set value is larger than the deviation set value of the first end; and the difference between the first displacement value and the second displacement value is larger than the difference deviation set value of the first end and the second end.
And when the controller receives the first-end independent descending signal and meets the first-end independent descending starting condition, the controller controls the lifting roller of the automatic plate rolling machine to independently descend the first end.
In one embodiment, the second end-only-down signal includes: a lifting roller operation starting signal or a descending edge signal of linkage descending. The second end individual descent start conditions are: the difference between the second displacement value and the depression set value is larger than the deviation set value of the second end; and the second displacement value minus the first displacement value is greater than a difference deviation set value of the first end and the second end.
And when the controller receives the second end independent descending signal and meets the second end independent descending starting condition, the controller controls the lifting roller of the automatic plate rolling machine to independently descend the second end.
The linkage descending, the first end independent descending and the second end independent descending all belong to the downward pressing movement of the automatic plate bending machine, the controller receives downward pressing movement instructions and judges whether corresponding starting conditions are met or not in real time, and when the starting conditions are met, downward pressing action is executed, and downward pressing is conducted in an automatic mode. The push movement indication comprises: a movement start signal is depressed. The push-down movement start signal includes: the device comprises at least one of a lifting roller operation starting signal, a falling edge signal of a lifting roller first end independent falling relay, a falling edge signal of a lifting roller second end independent falling relay or a falling edge signal of linkage falling.
In one embodiment, the method further comprises the steps of: and acquiring a horizontal movement instruction of the automatic plate bending machine, and controlling the lifting roller to horizontally move.
When the lifting roller is controlled to move horizontally, a worker needs to press the horizontal movement option of the human-computer interaction terminal for a long time. Before the lifting roller moves horizontally, the lifting roller needs to be moved to an intermediate position, and the position is set as a zero point on a correction interface of the man-machine interaction terminal. The man-machine interaction terminal comprises a touch screen and is used for receiving an operation instruction or inputting a control option. The lifting roller can move according to a set numerical value input by the man-machine interaction terminal, and in a certain embodiment, if the set numerical value is a positive number, the lifting roller moves forwards after a horizontal movement option on the touch screen is pressed; if the set numerical value is negative, the lifting roller moves backwards after the horizontal moving button on the touch screen is pressed. An operating option (e.g., a button or touch option) needs to be pressed all the time in this process to move the lift roller.
In one embodiment, the method further comprises the steps of: and acquiring a lifting roller reset indication through a lifting roller reset indication option of the human-computer interaction terminal, and resetting the lifting roller. And the lifting roller is reset by long pressing the lifting roller on the touch screen, the lifting roller returns to the central limit position, and the turnover side can be turned over to load and unload the plate or the workpiece.
As shown in fig. 4, the present invention also provides an apparatus for implementing the method, the apparatus being used for controlling a plate bending machine, the apparatus comprising: the system comprises a controller 1, a human-computer interaction terminal 2 and a monitoring unit 3; the controller 1 receives an operation instruction input by the human-computer interaction terminal 2 and controls the plate rolling machine to move according to the operation instruction; the monitoring unit 3 is respectively connected with the controller 1 and the human-computer interaction terminal 2; the monitoring unit 3 is used for monitoring a first displacement value of the first end of the lifting roller and a second displacement value of the second end of the lifting roller in real time; the controller 1 adjusts the motion states of the first end of the lifting roller and the second end of the lifting roller in real time according to the data monitored by the detection unit 3, the control instruction acquired by the human-computer interaction terminal 2 and the set conditions of real-time regulation and control of the lifting roller.
The human-computer interaction terminal 2 transmits the received operation instruction or data to the controller 1, the monitoring unit 3 transmits the monitored real-time data to the controller 1, and the controller 1 controls the automatic plate bending machine after receiving the data.
In one embodiment, the controller 1 is, for example, a PLC controller.
In one embodiment, the PLC controller may be an ohilon PLC controller.
In one embodiment, the monitoring unit 3 may include a pulse encoder using an absolute value counting method. The pulse encoder adopting the absolute value counting mode can monitor the first displacement value and the second displacement value respectively in real time.
The human-computer interaction terminal 2 can display manual interaction options for selecting operation options or inputting operation instructions. The manipulation indication includes all parameter settings involved in the present invention. The displacement of the two ends of the lifting roller can be respectively displayed on the man-machine interaction terminal 2, and the position value of the lifting roller required to move can also be set. The process control interface of the human-computer interaction terminal 2 can select a cylinder processing mode or a cone processing mode, processing parameters such as allowable deviation and processing allowable error of the two ends of the lifting roller are set on the parameter setting interface, an automatic control mode can be selected, the automatic plate rolling machine can automatically run according to the set numerical value and the detected numerical value of the pulse encoder, synchronous running of the two ends of the lifting roller is achieved, and the error is within the range of 0.01 mm.
It should be noted that, in this embodiment, a fixed side where the human-computer interaction terminal appears refers to a value related to the fixed side; the overturning side appearing on the human-computer interaction terminal refers to a numerical value related to the overturning side; the value related to the fixed side refers to the value of the lifting roller towards one end of the fixed side, and the value related to the overturning side refers to the value of the lifting roller towards one end of the overturning side.
As shown in fig. 5, through the human-computer interaction terminal 2, a worker can select a zero calibration 4 interface, a setting page 5 interface and an operation interface 6; the worker can also set parameters such as the position of the cone head 7, the position of the cone tail 8, the horizontal setting 9, the setting 10 of the lifting roller, the overturning side 11, the fixed side 12, the horizontal movement 131 and the like; the worker can also select operation instructions such as horizontal movement 132, lift roller operation 14, lift roller stop 15, and lift roller reset 16.
As shown in fig. 6, in the zero point 4 calibration interface, the worker can check the current values of the roll-over side, the fixed side, and the horizontal movement, and has options 41 of the roll-over side, the fixed side, and the horizontal movement zero calibration, and can perform the horizontal movement zero calibration at the end of the lift roller facing the roll-over side and at the end of the lift roller facing the fixed side.
Meanwhile, in the zero point 4 calibration interface, the operator can select the operation monitor 17, the setting page 5, and the calculation interface 6.
As shown in fig. 7, in the setting page 5 interface, the worker can perform the pulse parameter setting 18 for allowing deviation (i.e., the pulse parameter setting of the difference deviation setting value between the first end and the second end of the lifting roller), the pulse parameter setting 19 on the falling side (i.e., the pulse parameter setting of the second displacement value), the pulse parameter setting 20 on the fixed side (i.e., the pulse parameter setting of the first displacement value), the pulse parameter setting 21 for the height difference (i.e., the pulse parameter setting of the height difference between both ends of the lifting roller), and the pulse parameter setting 22 for the horizontal movement.
Meanwhile, in the setting page 5 interface, the operator can select the operation monitor 17, the zero calibration point 4, and the operation interface 6.
In conclusion, the lifting roller displacement monitoring device is simple in structure, the displacement values of the two ends of the lifting roller are monitored in real time through the monitoring unit, the monitoring unit sends the real-time monitored values to the controller, and the controller regulates and controls the plate bending machine in real time, so that the operation deviation of the two ends of the lifting roller is guaranteed to be within a preset range, and the machining error of a product is guaranteed to be controlled within a qualified range. Therefore, the invention effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.
The foregoing embodiments are merely illustrative of the principles of this invention and its efficacy, rather than limiting it, and various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (5)
1. A control method suitable for an automatic plate bending machine is characterized by comprising the following steps:
acquiring a first displacement value of a first end of a lifting roller and a second displacement value of a second end of the lifting roller in real time;
calculating a difference between the first displacement value and the second displacement value;
adjusting the motion states of the first end of the lifting roller and the second end of the lifting roller in real time according to the setting conditions of real-time regulation and control of the lifting roller on the basis of the first displacement value, the second displacement value, the difference value of the first displacement value and the second displacement value and the related parameter setting value of the plate bending machine;
the related parameter setting values of the plate bending machine comprise: at least one of a first end deviation set value, a second end error set value, a first end error set value, a difference deviation set value of the first end and the second end, and a press-down set value;
the set conditions for real-time regulation and control of the lifting roller comprise: a linkage descent condition, a first-end individual descent condition, and a second-end individual descent condition; the linkage lowering condition includes: a linkage descent signal and a linkage descent starting condition; the first terminal individual descent condition includes: a first-end individual falling signal and a first-end individual falling start condition; the second-end-individual-descent condition includes: a second terminal individual falling signal and a second terminal individual falling start condition;
the linkage descending starting conditions are as follows:
the difference between the second displacement value and the set value of the depression is greater than the set deviation of the second end; and is
The difference between the first displacement value and the set value of the depression is larger than the set deviation of the first end; and is
The absolute value of the difference between the second displacement value and the first displacement value is smaller than the difference deviation set value of the first end and the second end;
the starting conditions for the first end independent descent are as follows:
the difference between the first displacement value and the depression set value is greater than the first end deviation set value; the difference value between the first end and the second end is larger than the difference value deviation set value of the first end and the second end;
the starting conditions for the second end independent descent are as follows:
the difference between the second displacement value and the depression set value is larger than the deviation set value of the second end; and the second displacement minus the first displacement is greater than the difference between the first end and the second end.
2. The control method for the automatic plate bending machine as claimed in claim 1, further comprising the step of, before the step of obtaining the first displacement value of the first end of the lifting roller and the second displacement value of the second end of the lifting roller in real time:
and acquiring a related parameter set value of the plate bending machine by taking the plate to be processed as a basis.
3. The control method for the automatic plate bending machine as claimed in claim 2, wherein the step of obtaining the parameter setting values of the plate bending machine based on the substitute machining plate further comprises:
and acquiring the processing mode of the plate.
4. An apparatus for performing the method of any of claims 1-3, the apparatus being used to control an automatic sheet rolling machine, the apparatus comprising: the system comprises a controller, a human-computer interaction terminal and a monitoring unit; the controller receives a control instruction input by the human-computer interaction terminal and controls the plate rolling machine to move according to the control instruction; the monitoring unit is respectively connected with the controller and the man-machine interaction terminal; the monitoring unit is used for monitoring a first displacement value of the first end of the lifting roller and a second displacement value of the second end of the lifting roller in real time; and the controller adjusts the motion states of the first end and the second end of the lifting roller in real time according to the data monitored by the monitoring unit, the control instruction acquired by the human-computer interaction terminal and the set conditions of real-time regulation and control of the lifting roller.
5. The apparatus of claim 4, wherein the monitoring unit comprises: the pulse encoder has the following counting mode: absolute value counting manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548521.6A CN111687247B (en) | 2020-06-16 | 2020-06-16 | Control method and device suitable for automatic plate rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548521.6A CN111687247B (en) | 2020-06-16 | 2020-06-16 | Control method and device suitable for automatic plate rolling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111687247A CN111687247A (en) | 2020-09-22 |
| CN111687247B true CN111687247B (en) | 2022-07-22 |
Family
ID=72481262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010548521.6A Active CN111687247B (en) | 2020-06-16 | 2020-06-16 | Control method and device suitable for automatic plate rolling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111687247B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814364A (en) * | 2012-09-07 | 2012-12-12 | 四川惊雷压力容器制造有限责任公司 | Automatic control system of plate rolling machine |
| CN102989844A (en) * | 2011-09-09 | 2013-03-27 | 西安兰石重工机械有限公司 | Lifting roller displacement control device in plate rolling machine |
| WO2016097984A1 (en) * | 2014-12-15 | 2016-06-23 | Mauro Meliga | Bending machine for bending tubes, profiled sections, sheets and the like, with a measuring system for measuring the reaction force applied by the workpiece on the bending roller(s) of the machine |
| JP2019104019A (en) * | 2017-12-11 | 2019-06-27 | 川崎重工業株式会社 | Apparatus and method for manufacturing roll-formed component |
| WO2019193497A1 (en) * | 2018-04-03 | 2019-10-10 | Promau S.R.L. | Method and apparatus for controlling a process for curving elongated pieces and roller curving machine |
| US10646909B2 (en) * | 2016-11-11 | 2020-05-12 | Mega Manufacturing, Inc. | Plate roll bending machine with roll position feedback contained within roll positioning cylinder |
-
2020
- 2020-06-16 CN CN202010548521.6A patent/CN111687247B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989844A (en) * | 2011-09-09 | 2013-03-27 | 西安兰石重工机械有限公司 | Lifting roller displacement control device in plate rolling machine |
| CN102814364A (en) * | 2012-09-07 | 2012-12-12 | 四川惊雷压力容器制造有限责任公司 | Automatic control system of plate rolling machine |
| WO2016097984A1 (en) * | 2014-12-15 | 2016-06-23 | Mauro Meliga | Bending machine for bending tubes, profiled sections, sheets and the like, with a measuring system for measuring the reaction force applied by the workpiece on the bending roller(s) of the machine |
| US10646909B2 (en) * | 2016-11-11 | 2020-05-12 | Mega Manufacturing, Inc. | Plate roll bending machine with roll position feedback contained within roll positioning cylinder |
| JP2019104019A (en) * | 2017-12-11 | 2019-06-27 | 川崎重工業株式会社 | Apparatus and method for manufacturing roll-formed component |
| WO2019193497A1 (en) * | 2018-04-03 | 2019-10-10 | Promau S.R.L. | Method and apparatus for controlling a process for curving elongated pieces and roller curving machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111687247A (en) | 2020-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE112005002229T5 (en) | Servo press control system and servo press control method | |
| CN207827495U (en) | A kind of stretched film deviation correcting device | |
| CN103334973A (en) | Synchronizing system for multiple hydraulic cylinders and control method for synchronizing system for multiple hydraulic cylinders | |
| US20140165855A1 (en) | Press machine and method for adjusting slide position thereof | |
| CN111687247B (en) | Control method and device suitable for automatic plate rolling machine | |
| CN110573332A (en) | punching system | |
| CN109877689A (en) | The grinding wheel automatic cutting device of continuous circumferentially cutting cylindrical rod and compensation method | |
| US5297478A (en) | Method of operating a press | |
| EP3532425B1 (en) | Method for the compensation of diagonal pull in cranes | |
| CN208083175U (en) | A kind of cable testing bridge automatic assembly line | |
| CN206731444U (en) | A kind of lithium battery coating machine die head fine position device | |
| CN105290120B (en) | A kind of autocontrol method of mill roll-gap, device and its system | |
| CN205056650U (en) | Automatic control system of rolling mill clearning between rolls | |
| CN106269909B (en) | A kind of continuous hot-rolling mill dynamic deviation control method | |
| CN210851028U (en) | Roller clearance device is adjusted to sloping block | |
| JP2014237157A (en) | Press machine | |
| CN102096393A (en) | Method for dynamically limiting amplitude during non-automatic control of straightening machine and system thereof | |
| US20180181100A1 (en) | Numerical controller | |
| CN207642112U (en) | A kind of automatic moulding punch and shears | |
| WO2022158414A1 (en) | Press system and method for controlling press system | |
| JPS63120000A (en) | Nc mechanical press for powder molding | |
| JP7389663B2 (en) | Press equipment and pressing method | |
| CN215758294U (en) | Automatic leveling on-line detection device for welded turnout base plate | |
| CN202837943U (en) | Intelligent control system of straightener | |
| CN113976848B (en) | Control method and device for fan-shaped section roll gap of slab continuous casting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Control Method and Device Suitable for Automatic Plate Rolling Machine Effective date of registration: 20230323 Granted publication date: 20220722 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2023980035948 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |