Method for optimizing blanking position of feeding system

Abstract

According to the method for optimizing the blanking position of the feeding system, the actual blanking position of the material is compared with the predicted blanking position to judge whether the deviation between the actual blanking position and the predicted blanking position exceeds the corresponding deviation preset threshold value or not, and then the influence parameters are correspondingly adjusted according to the judgment result, so that the blanking position of the feeding system is optimized. Therefore, the blanking position of the feeding system is effectively optimized through model simulation and actual operation, corresponding influence factors are adjusted by comparing a simulation prediction result with an actual operation result and comparing a comparison deviation with a preset threshold value, so that the actual blanking point of the material is further close to the predicted blanking position, and the blanking accuracy of the feeding system is improved. And therefore, the working efficiency and the working quality of follow-up automatic laser cutting are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of feeding device control technology, and in particular to a method for optimizing a material drop position of a feeding system. Background Art

[0002] The loading process of the loading system is often to place the material on the feed end of the feeding component, send the material from the feed end to the discharge end through the feeding component, and then lift the material to the height of the chuck by the lifting device at the discharge end. After the material is clamped by the extension and retraction of the chuck, it is transported to the rear machine tool for corresponding laser cutting and other corresponding operations.

[0003] During the loading process, since the subsequent laser cutting work is often performed by automated control, once there is a large deviation between the actual landing position of the material on the top of the machine tool and the predicted landing position, it will have an adverse effect on the subsequent automated laser cutting work efficiency and work quality.

[0004] Therefore, there is an urgent need to provide a method for optimizing the blanking position of a feeding system to solve the defects and shortcomings in the above-mentioned prior art. Summary of the invention

[0005] In order to solve the defects and shortcomings in the prior art, the present invention provides a method for optimizing the blanking position of a feeding system.

[0006] The specific scheme provided by the present invention is: A method for optimizing the blanking position of a feeding system, characterized in that it comprises the following steps: S1: Input the feeding system parameters and establish the feeding system model; S2: Input the initial position of the lifting device into the established feeding system model and predict the landing point of the material; S3: Determine threshold parameters and optimization parameters according to the established feeding system model; S4: Put the material into the inlet of the feeding device, feed it to the outlet through the feeding device, lift it through the lifting device, clamp it on the chuck and feed it to the top of the machine tool, and finally drop it to the top of the machine tool; S5: record the actual landing point of the material; S6: Compare the actual material landing position with the predicted landing position to determine whether the deviation between the two exceeds the corresponding deviation preset threshold; S7: Adjust the influencing parameters accordingly based on the judgment results: S7.1: When the material exceeds the preset threshold of axial deviation only in the axial direction, the influencing parameters are adjusted accordingly according to the preset axial priority and the preset axial adjustment amount; S7.2: When the material exceeds the preset radial deviation threshold only in the radial direction, the influencing parameters are adjusted accordingly according to the preset radial priority and the preset radial adjustment amount; S7.3: When the material exceeds the preset radial deviation threshold in both the axial and radial directions, the influencing parameters are adjusted accordingly according to the preset axial priority and the preset axial adjustment amount, and steps S4 to S7 are repeated. When the judgment condition is met, the influencing parameters are adjusted accordingly according to the preset radial priority and the preset radial adjustment amount; S8: Repeat steps S4 to S7 until the deviation between the actual material landing point and the predicted landing point does not exceed the corresponding deviation preset threshold; S9: Record the optimized data and correct the parameters to be corrected in step S2.

[0007] As a further preferred embodiment of the present invention, the initial position of the lifting device in step S2 and the threshold parameter in step S3 are determined by empirical data combined with optimization data.

[0008] As a further preferred embodiment of the present invention, in step S3, The threshold parameters at least include an axial deviation preset threshold and a radial deviation preset threshold; The optimization parameters at least include a preset axial priority, a preset radial priority, a preset axial adjustment amount, and a preset radial adjustment amount.

[0009] As a further preferred embodiment of the present invention, in step S7, the influencing parameters at least include the position of the lifting device, the rotation angle of the lifting shaft, and the telescopic displacement of the chuck.

[0010] As a further preferred embodiment of the present invention, in the step S7.1, the preset axial priority satisfies: the adjustment priority of the rotation angle of the lifting shaft is higher than the adjustment priority of the position of the lifting device, and the adjustment priority of the position of the lifting device is higher than the adjustment priority of the telescopic displacement of the chuck.

[0011] As a further preferred embodiment of the present invention, in step S7.2, the preset radial priority satisfies: the adjustment priority of the position of the lifting device is higher than the adjustment priority of the telescopic displacement of the chuck, and the adjustment priority of the telescopic displacement of the chuck is higher than the adjustment priority of the rotation angle of the lifting shaft.

[0012] As a further preferred embodiment of the present invention, in steps S7.1 to S7.3, the preset axial adjustment amounts of the position of the lifting device and the telescopic displacement of the chuck are both greater than the corresponding preset radial adjustment amounts.

[0013] As a further preferred embodiment of the present invention, in step S7.3, the judgment condition is that the axial deviation between the actual landing position of the material and the predicted landing position does not exceed a preset threshold value of the axial deviation.

[0014] As a further preferred embodiment of the present invention, the optimization data recorded in step S9 at least includes influencing parameters of the optimization adjustment and corresponding optimization adjustment amounts.

[0015] As a further preferred embodiment of the present invention, the parameters to be corrected in step S9 at least include an initial position of the lifting device and a threshold parameter.

[0016] Compared with the prior art, the present invention can achieve the following technical effects: 1) The present invention provides a method for optimizing the drop position of a feeding system, by comparing the actual drop position of the material with the predicted drop position to determine whether the deviation between the two exceeds a preset threshold of the corresponding deviation, and then adjusting the influencing parameters accordingly according to the judgment result, thereby effectively optimizing the drop position of the feeding system through model simulation and actual operation, and adjusting the corresponding influencing factors based on the comparison of the simulation prediction results with the actual operation results and the comparison of the comparison deviation with the preset threshold, so that the actual drop point of the material is further approached to the predicted drop position, thereby ensuring the efficiency and quality of subsequent automated laser cutting work.

[0017] 2) The present invention provides a method for optimizing the blanking position of a feeding system, by adjusting the influencing parameters that are most likely to cause blanking deviation according to preset priorities and preset adjustment amounts based on the judgment results, thereby further improving the optimization effectiveness and efficiency, and providing effective guarantee for subsequent automated laser cutting work.

[0018] 3) The present invention provides a method for optimizing the material drop position of a feeding system. By combining the optimization data and the empirical data as a basis for determining the initial position and threshold parameters of the lifting device, the material drop position can be continuously corrected and optimized, thereby further improving the accuracy and stability of the material drop position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A flowchart of the steps of the optimization method provided by the present invention.

[0020] Figure 2 This is a schematic structural diagram of the feeding system provided by the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] [First embodiment] like Figure 1-2 The present invention shows a method for optimizing the material drop position of a feeding system, which comprises the following steps: S1: Inputting feeding system parameters, establishing a feeding system model, simulating the feeding process through the established model to predict the location of the material landing point. In this embodiment, the input feeding system parameters should at least include feeding device parameters, lifting device parameters and chuck parameters; S2: Input the initial position of the lifting device into the established feeding system model, and predict the landing position of the material; in this embodiment, the initial position of the lifting device is determined by empirical data combined with optimization data. By combining the optimization data and empirical data as the basis for determining the initial position of the lifting device, the material landing position can be continuously corrected and optimized, thereby further improving the accuracy and stability of the material landing position; S3: Determine the threshold parameters and optimization parameters according to the established feeding system model; the threshold parameters are determined by combining the empirical data with the optimization data. By combining the optimization data and the empirical data as the basis for determining the threshold parameters, the continuous correction and optimization of the blanking position can be achieved, thereby further improving the accuracy and stability of the blanking position; in this embodiment, The determined threshold parameters include at least an axial deviation preset threshold and a radial deviation preset threshold; thus, when the actual material landing position is subsequently compared with the predicted landing position, it is determined whether the comparison difference is within the axial and radial deviation preset thresholds to provide a basis for judgment. The determined optimization parameters at least include a preset axial priority, a preset radial priority, a preset axial adjustment amount, and a preset radial adjustment amount. The preset axial priority and the preset radial priority respectively determine the adjustment priority of the influencing factors in the axial and radial directions. The preset axial adjustment amount and the preset radial adjustment amount respectively determine the adjustment amplitude of the influencing factors in the axial and radial directions. Both the adjustment priority and the adjustment amplitude will affect the accuracy and efficiency of the optimization adjustment. S4: Put the material into the inlet of the feeding device 1, feed it to the outlet through the feeding device 1, lift it through the lifting device 2, clamp it through the chuck (not shown) on the slide 3, and then feed it to the top of the machine tool, and finally drop it to the top of the machine tool; Figure 2 As shown, the length extension direction of the material A is taken as the axial direction in this embodiment, and the width extension direction of the material A is taken as the radial direction in this embodiment. Since the height direction change of the material A during the loading process is negligible relative to the landing point deviation in the length and width directions, the radial direction in this embodiment does not include the height extension direction in the usual sense. S5: Record the actual landing position of the material; S6: Compare the actual material landing position with the predicted landing position to determine whether the deviation between the two exceeds the corresponding deviation preset threshold; S7: adjusting the influencing parameters accordingly according to the judgment result: by comparing the actual material landing point with the predicted landing point to determine whether the deviation between the two exceeds the corresponding deviation preset threshold, and then adjusting the influencing parameters accordingly according to the judgment result, so as to effectively optimize the material drop position of the feeding system through model simulation and actual operation, and by comparing the simulation prediction results with the actual operation results, and comparing the comparison deviation with the preset threshold, the corresponding influencing factors are adjusted to make the actual material drop point closer to the predicted drop position, thereby ensuring the efficiency and quality of subsequent automated laser cutting work; In this embodiment, the determined influencing parameters at least include the position of the lifting device, the rotation angle of the lifting shaft, and the telescopic displacement of the chuck, wherein the position of the lifting device will affect both the axial and radial directions of the actual landing point of the material, and the rotation angle of the lifting shaft can reflect the displacement change of the axis of the material during the lifting process, and ultimately affect the axial position of the actual landing point of the material, and in order to achieve the clamping operation of the material lifted to a high position, the telescopic displacement of the chuck will also affect the axial and radial positions of the actual landing point of the material; The specific adjustment steps are: S7.1: When the material exceeds the preset threshold of the axial deviation only in the axial direction, the influencing parameters are adjusted accordingly according to the preset axial priority and the preset axial adjustment amount; in this embodiment, the preset axial priority satisfies: the adjustment priority of the rotation angle of the lifting shaft is higher than the adjustment priority of the position of the lifting device, and the adjustment priority of the position of the lifting device is higher than the adjustment priority of the telescopic displacement of the chuck; this is because when the lifting device lifts the material, the material at the top of the lifting shaft may move axially relative to the lifting shaft. On the one hand, this axial movement is to ensure that the material can find the best axial position after the movement so as to achieve stable support at the top of the lifting shaft. At the same time, it can also indicate that the lifting device can lift No unexpected damage occurs while lifting the material, so the axial movement is inevitable, and the axial deviation of the material in the axial direction is also the largest, so it needs to be adjusted first; the setting position of the lifting device includes its axial setting position and radial setting position, so it has an impact on the deviation of the material in the axial direction and radial direction, but in order to achieve stable clamping with the top chuck, this impact is relatively small compared to the impact caused by the rotation angle of the lifting shaft, so its adjustment priority is second; the telescopic displacement of the chuck is to achieve clamping with the material, and it only realizes axial and radial telescopic movement within a small range (the chuck is arranged in the axial and radial directions at the same time), so it has the lowest adjustment priority; S7.2: When the material exceeds the preset threshold of radial deviation only in the radial direction, the influencing parameters are adjusted accordingly according to the preset radial priority and the preset radial adjustment amount; in this embodiment, the preset radial priority satisfies: the adjustment priority of the position of the lifting device is higher than the adjustment priority of the telescopic displacement of the chuck, and the adjustment priority of the telescopic displacement of the chuck is higher than the adjustment priority of the rotation angle of the lifting shaft; this is set because the setting position of the lifting device includes its axial setting position and radial setting position, so it will affect the deviation of the material in the axial direction and the radial direction, so in the radial adjustment process, its adjustment priority needs to be set to the highest; the telescopic position of the chuck only realizes axial and radial telescopic movements within a small range, so its adjustment priority can be set to a relatively low level; and the rotation angle of the lifting shaft will only cause the material to change in the axial direction (the material is clamped on both sides of the radial direction), and will not change in the radial direction, so it will not affect the radial position of the actual landing point of the material, so its adjustment priority is set to the lowest; S7.3: When the material exceeds the preset threshold of radial deviation in both axial and radial directions, the influencing parameters are adjusted accordingly according to the preset axial priority and the preset axial adjustment amount, and steps S4 to S7 are repeated. When the judgment condition is met, that is, the axial deviation between the actual landing point of the material and the predicted landing point does not exceed the preset threshold of axial deviation, the influencing parameters are adjusted accordingly according to the preset radial priority and the preset radial adjustment amount. This is because, on the one hand, the influence of the axial deviation of the actual landing point of the material by the feeding device, the lifting device and the chuck device is greater than the influence of the radial deviation. On the other hand, in the subsequent corresponding operations such as automated laser cutting on the rear machine tool, the influence caused by the axial deviation of the actual landing point of the material is also greater than the influence caused by the radial deviation. Therefore, it is necessary to reduce or eliminate the axial deviation as much as possible before considering the radial deviation. Therefore, correspondingly, as a preferred embodiment, in this embodiment, the preset axial adjustment amount of the position of the lifting device and the telescopic displacement of the chuck are both greater than the corresponding preset radial adjustment amount. S8: Repeat steps S4 to S7 until the deviation between the actual material landing point and the predicted landing point does not exceed the corresponding deviation preset threshold; S9: Record the optimization data and correct the parameters to be corrected. In this step, the recorded optimization data at least includes the influencing parameters of the optimization adjustment and the corresponding optimization adjustment amount, so that the process and amplitude of each adjustment are recorded to provide a basis for the subsequent optimization process; and the parameters to be corrected at least include the initial position and threshold parameters of the lifting device. By combining the optimization data and the empirical data as the basis for determining the initial position and threshold parameters of the lifting device, the blanking position can be continuously corrected and optimized, thereby further improving the accuracy and stability of the blanking position.

[0025] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A method for optimizing the blanking position of a feeding system, characterized in that: The following steps are involved: S1: Input the feeding system parameters and establish the feeding system model; S2: Input the initial position of the lifting device into the established feeding system model and predict the landing point of the material; S3: Determine threshold parameters and optimization parameters according to the established feeding system model; S4: Put the material into the inlet of the feeding device, feed it to the outlet through the feeding device, lift it through the lifting device, clamp it on the chuck and feed it to the top of the machine tool, and finally drop it to the top of the machine tool; S5: Record the actual landing position of the material; S6: Compare the actual material landing position with the predicted landing position to determine whether the deviation between the two exceeds the corresponding deviation preset threshold; S7: Adjust the influencing parameters accordingly based on the judgment results: S7.1: When the material exceeds the preset threshold of axial deviation only in the axial direction, the influencing parameters are adjusted accordingly according to the preset axial priority and the preset axial adjustment amount; S7.2: When the material exceeds the preset radial deviation threshold only in the radial direction, the influencing parameters are adjusted accordingly according to the preset radial priority and the preset radial adjustment amount; S7.3: When the material exceeds the preset radial deviation threshold in both the axial and radial directions, the influencing parameters are adjusted accordingly according to the preset axial priority and the preset axial adjustment amount, and steps S4 to S7 are repeated. When the judgment condition is met, the influencing parameters are adjusted accordingly according to the preset radial priority and the preset radial adjustment amount; S8: Repeat steps S4 to S7 until the deviation between the actual material landing point and the predicted landing point does not exceed the corresponding deviation preset threshold; S9: Record the optimized data and correct the parameters to be corrected in step S2.

2. The method for optimizing the blanking position of a feeding system according to claim 1, characterized in that: The initial position of the lifting device in step S2 and the threshold parameter in step S3 are determined by empirical data combined with optimization data.

3. The method for optimizing the blanking position of a feeding system according to claim 1, characterized in that: In the step S3, The threshold parameters at least include an axial deviation preset threshold and a radial deviation preset threshold; The optimization parameters at least include a preset axial priority, a preset radial priority, a preset axial adjustment amount, and a preset radial adjustment amount.

4. The method for optimizing the blanking position of a feeding system according to claim 3, characterized in that: In the step S7, the influencing parameters at least include the position of the lifting device, the rotation angle of the lifting shaft, and the telescopic displacement of the chuck.

5. The method for optimizing the material drop position of a feeding system according to claim 4, characterized in that: In the step S7.1, the preset axial priority satisfies: the adjustment priority of the rotation angle of the lifting shaft is higher than the adjustment priority of the position of the lifting device, and the adjustment priority of the position of the lifting device is higher than the adjustment priority of the telescopic displacement of the chuck.

6. The method for optimizing the blanking position of a feeding system according to claim 4, characterized in that: In the step S7.2, the preset radial priority satisfies: the adjustment priority of the position of the lifting device is higher than the adjustment priority of the telescopic displacement of the chuck, and the adjustment priority of the telescopic displacement of the chuck is higher than the adjustment priority of the rotation angle of the lifting shaft.

7. The method for optimizing the material drop position of a feeding system according to claim 4, characterized in that: In the steps S7.1 to S7.3, the preset axial adjustment amounts of the position of the lifting device and the telescopic displacement of the chuck are both greater than the corresponding preset radial adjustment amounts.

8. The method for optimizing the material drop position of a feeding system according to claim 4, characterized in that: In step S7.3, the determination condition is that the axial deviation between the actual material landing position and the predicted landing position does not exceed a preset axial deviation threshold.

9. The method for optimizing the blanking position of a feeding system according to claim 1, characterized in that: The optimization data recorded in step S9 at least includes the influencing parameters of the optimization adjustment and the corresponding optimization adjustment amount.

10. The method for optimizing the material drop position of a feeding system according to claim 1, characterized in that: The parameters to be corrected in step S9 at least include the initial position of the lifting device and the threshold parameter.

Images