A method for automatically indicating tool loading parameters and bending position on a bending machine

Abstract

The present application relates to a kind of methods for automatically indicating tool mounting parameters and bending position on bending machine, comprising the following steps: step one: read the sheet metal drawing of product to be processed, obtain bending process parameters;Step two: according to the bending process parameters and preset die library information, the required tool mounting parameters for calculating bending die on bending machine by bending tool algorithm;Step three: the starting point P of the tool and the tool length Q are converted into control signals, and the control signals are used to control the light-up position and light-up length of corresponding lamp beads on programmable light belt arranged along the length direction of bending machine;Step four: the programmable light belt is according to the control signal, in the position corresponding to the starting point P of the tool and the tool length Q;Step five: in the bending process, according to the bending position corresponding to the current bending step sequence. Operator (especially novice) does not need to carry out complex calculation, just follow the light belt indication to complete accurate tool mounting and bending positioning.

Description

Technical Field

[0001] This invention belongs to the field of bending processing technology, and relates to a method for automatically indicating tool loading parameters and bending position on a bending machine. Specifically, it is a method for automatically indicating tool loading position, tool loading length, and bending position on a bending machine. Background Technology

[0002] In the sheet metal processing industry, bending machines are crucial forming equipment. When processing a product using a bending machine, a series of bending dies (i.e., "die setting") need to be installed at appropriate positions on the machine according to the product's shape and bending process requirements. This process is typically performed by experienced operators. They need to accurately calculate the splicing length of each die segment (i.e., "die length") and determine its installation position along the length of the bending machine (i.e., "die starting position") to ensure that all bending steps can be completed within the machine's limitations. Furthermore, they need to instruct other operators on the specific positions where each bending step should be positioned and bent.

[0003] The existing operating method has significant technical problems: it relies heavily on the operator's personal experience and process knowledge, resulting in a high operational threshold. For new operators, understanding and mastering the methods for determining the tool placement, tool length, and bending position is extremely difficult, easily leading to tool placement errors, low bending accuracy, and even safety accidents. Currently, there is a lack of a technical means to intuitively and automatically instruct operators on this crucial information. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned problems existing in the prior art and provide a method and system for automatically indicating the tool loading parameters and bending position on a bending machine.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a method for automatically indicating tool loading parameters and bending position on a bending machine, comprising the following steps: Step 1: Read the sheet metal drawing of the product to be processed and obtain the bending process parameters, which include at least the bending line length L; Step 2: Based on the bending process parameters and the preset mold library information, the required blade alignment parameters for installing the bending mold on the bending machine are calculated using the bending blade alignment algorithm. The blade alignment parameters include the blade arrangement start point P and the blade arrangement length Q. Step 3: Convert the starting point P of the blade rack and the blade rack length Q into control signals. The control signals are used to control the lighting position and lighting length of the corresponding LED beads on the programmable LED strip arranged along the length direction of the bending machine. Step 4: According to the control signal, the programmable light strip illuminates the corresponding length of LED beads in the first color at the position corresponding to the starting point P and the length Q of the cutter bar, so as to intuitively guide the operator to install the mold. Step 5: During the bending process, according to the bending position corresponding to the current bending sequence, control the programmable light strip to light up the LED beads in the second color at the point corresponding to the bending position, so as to intuitively guide the operator to perform the bending and positioning of the sheet metal.

[0006] Optimally, the knife-jointing algorithm in step two specifically includes: Establish a mathematical model: The target bending line length L is equal to the sum of the products of the lengths of each type of die segment used and the quantity used, i.e. In the formula, n represents the number of available mold segment types; l i x is the length of the i-th type of mold segment; i Let x be the number of the i-th type of mold segment used and x i The integer is x, and satisfies the constraint 0 ≤ x. i ≤m i m i The maximum number of available mold segments of type i; Find the set of integer solutions {x1, x2, ..., xn} that satisfy the given equations and constraints. n}, as a knife-fighting strategy.

[0007] Optimally, in step three, the method for converting the tool loading parameters into the LED lighting position includes: Obtain the total length S of the bending machine, the installation direction E of the LED strip, and the spacing D between the LED beads; When the LED strip is installed from left to right, then: The starting position of the LED light is P * D; The endpoint of the LED light being lit = (P + Q) * D; When the LED strip is installed from right to left, then: The starting position of the LED light is calculated as: [S - (P + Q)] * D; The endpoint of the LED light being lit = (S - P) * D.

[0008] Furthermore, in step three, the programmable light strip is a series of LED beads, the control signal is a digital signal following a timing protocol, and is sent through a controller; the digital signal contains a color data packet corresponding to each LED bead, each LED bead receives its own color data, updates its display, and passes the remaining data to the next LED bead.

[0009] Ideally, in step five, the programmable LED strip is controlled to indicate different colors when the bending machine is in different operating states, including standby, running, fault, and emergency stop.

[0010] Ideally, the first color and the second color are different colors.

[0011] Optimized, after step five, the following steps are also included: when the current bending sequence is completed, the system automatically switches to the next bending sequence, the programmable light strip turns off the second color LED indicating the current bending position, and according to the bending position corresponding to the next bending sequence, the LED is relit in the second color at the updated position until all bending sequences are completed.

[0012] Optimized, step four specifically includes: when the blade assembly parameters include multiple discontinuous blade mounting intervals, the programmable light strip simultaneously or at different times illuminates the corresponding length of LED beads in the first color at the positions corresponding to each blade mounting interval, so as to intuitively instruct the operator to install the segmented mold; wherein, the discontinuous blade mounting intervals are determined by the mold installation positions corresponding to the multiple non-adjacent bending steps required for bending the product.

[0013] Compared with the prior art, the present invention has the following significant advantages: Reduced operational difficulty: Operators (especially beginners) do not need to perform complex calculations. They can complete precise tool loading and bending positioning simply by following the indicator light, which greatly shortens the training cycle and learning curve.

[0014] Improved efficiency: The automatic calculation and direct display of the die-cutting scheme eliminates the need for manual calculation and measurement, thereby improving the efficiency of mold installation and product changeover.

[0015] Reduce errors: Avoid tool placement misalignment or length mismatch caused by human calculation or memory errors, thereby reducing the risk of product scrap and mold damage.

[0016] Enhanced safety: Clear visual indicators help operators concentrate better, reducing misoperations caused by unclear positioning and improving processing safety.

[0017] Standardized operations are achieved: any operator can operate according to uniform visual instructions, ensuring the consistency and repeatability of the processing. Attached Figure Description

[0018] Figure 1 This is a flowchart of the method for automatically indicating tool loading parameters and bending position on a bending machine according to the present invention; Figure 2 This is a diagram showing the tool arrangement information in the method for automatically indicating tool loading parameters and bending position on a bending machine according to the present invention. Figure 3 This is a programmable LED strip parameter display diagram illustrating the method for automatically indicating tool loading parameters and bending position on a bending machine according to the present invention. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail.

[0020] The foregoing descriptions and other technical contents, features, and effects of this invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms used in the following embodiments, such as up, down, left, right, front, or back, are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0021] The following detailed description of various embodiments of the present invention, with reference to the accompanying drawings. Besides these detailed descriptions, the present invention can be widely implemented in other embodiments, and any easy substitutions, modifications, or equivalent changes to the described embodiments are included within the scope of the present invention and are subject to the claims. In the description of the specification, many specific details are provided to give the reader a more complete understanding of the present invention; however, the present invention may still be implemented even if some or all of the specific details are omitted. Furthermore, well-known steps or components are not described in the details to avoid unnecessarily limiting the present invention. The same or similar components in the drawings will be represented by the same or similar symbols. It should be noted that the drawings are for illustrative purposes only and do not represent the actual size or quantity of components; some details may not be fully drawn for the sake of simplicity.

[0022] like Figure 1 The method shown for automatically indicating tool loading parameters and bending position on a bending machine can be implemented or deployed in a control system. This control system comprises a next-generation CNC controller, an LED strip (programmable LED strip) mounted along the length of the bending machine bed (X-axis direction), a mold library database, and operating software. The LED strip uses WS2812 or similar protocol-compatible smart LED beads connected in series (each bead preferably has a built-in control chip as needed). Data signals are sent from the controller, enter the first LED bead, process its own color data, and then output to the second LED bead, and so on. The controller sends a series of digital signals consisting of 0s and 1s, following a strict timing protocol. A high level lasting a specific duration represents "1", and a shorter duration represents "0". In the signal sequence, the first 24 bits of data (8 bits red + 8 bits green + 8 bits blue) control the color of the first LED bead, the second 24 bits control the second LED bead, and so on. By sending the corresponding number of data packets, the number of LED beads lit (i.e., the length) can be controlled; by setting the RGB value of each data packet, the color of each LED bead can be controlled.

[0023] The above-mentioned method for automatically indicating the tool loading parameters and bending position on a bending machine includes the following steps: Step 1: Read the sheet metal drawing of the product to be processed and obtain the bending process parameters. The bending process parameters include at least the bending line length L (e.g., ...). Figure 2 and Figure 3 (As shown).

[0024] Step 2: Based on the bending process parameters and the preset mold library information, the required tooling parameters for installing the bending mold on the bending machine are calculated using the bending tooling algorithm. The tooling parameters include the tooling start point P (measured from the zero point at one end of the machine tool (e.g., the left end) and the tooling length Q.

[0025] The knife-joining algorithm in step two specifically includes: Establish a mathematical model: The target bending line length L is equal to the sum of the products of the lengths of each type of die segment used and the quantity used, i.e. In the formula, n represents the number of available mold segment types; l i x is the length of the i-th type of mold segment; i Let x be the number of the i-th type of mold segment used and x i The integer is x, and satisfies the constraint 0 ≤ x. i ≤m i m i The maximum number of available mold segments of type i; Find the set of integer solutions {x1, x2, ..., xn} that satisfy the given equations and constraints. n}, as a knife-fighting strategy.

[0026] Specifically as follows: The blade length L = 100, the mold length segment l = [80, 50, 30, 15, 10] (unit mm), and the quantity m = [1, 2, 2, 3, 3]. We need to solve for the integer x = [x1, x2, x3, x4, x5], which satisfies: 80x1 + 50x2 + 20x3 + 15x4 + 10x5 = 200, 0 ≤ x1 ≤ 1, 0 ≤ x2 ≤ 2, 0 ≤ x3 ≤ 2, 0 ≤ x4 ≤ 3, 0 ≤ x5 ≤ 3. This equation has multiple solutions, for example: Solution 1: X = [1, 0, 0, 0, 2] (1 80mm + 2 10mm); Solution 2: X = [0, 2, 0, 0, 0] (2 x 50mm); Solution 3: X = [0, 1, 1, 0, 2] (1 50mm + 1 30mm + 2 10mm); The system can select an optimal solution from preset strategies (such as prioritizing the use of long molds, minimizing the number of molds, etc.) and output it.

[0027] In step three, the method for converting the tool loading parameters into the LED lighting position includes: Obtain the total length S of the bending machine, the installation direction E of the LED strip (from left to right or from right to left), and the spacing D between the LED beads; When the LED strip is installed from left to right, then: The starting position of the LED light is P * D; The endpoint of the LED light being lit = (P + Q) * D; When the LED strip is installed from right to left, then: The starting position of the LED light is calculated as: [S - (P + Q)] * D; The endpoint of the LED light being lit = (S - P) * D.

[0028] Step 3: Convert the starting point P of the blade arrangement and the blade length Q into control signals. The control signals are used to control the lighting position and lighting length of the corresponding LED beads on the programmable LED strip arranged along the length direction of the bending machine.

[0029] The programmable light strip is a chain of LED beads connected in series. The control signal is a digital signal that follows a timing protocol and is sent through a controller. The digital signal contains a color data packet corresponding to each LED bead. Each LED bead receives its own color data, updates its display, and passes the remaining data to the next LED bead.

[0030] Step 4: According to the control signal, the programmable light strip illuminates the corresponding length of LED beads in the first color at the position corresponding to the starting point P and the length Q of the blade, so as to intuitively guide the operator to install the mold.

[0031] Step four specifically includes: when the blade assembly parameters include multiple discontinuous blade mounting intervals, the programmable light strip simultaneously or at different times illuminates the corresponding length of LED beads in the first color at the positions corresponding to each blade mounting interval, so as to intuitively instruct the operator to install the segmented mold; wherein, the discontinuous blade mounting intervals are determined by the mold installation positions corresponding to the multiple non-adjacent bending steps required for bending the product.

[0032] Step 5: During the bending process, according to the bending position corresponding to the current bending sequence, control the programmable light strip to light up the LED beads in the second color at the point corresponding to the bending position (the first color and the second color are different colors) to intuitively guide the operator to perform sheet bending and positioning.

[0033] In step five, when the bending machine is in different operating states, the programmable light strip is controlled to indicate with different colors. The operating states include standby, running, fault, and emergency stop.

[0034] Step five includes the following steps: when the current bending sequence is completed, the system automatically switches to the next bending sequence. The programmable LED strip turns off the second-color LED indicating the current bending position and, according to the bending position corresponding to the next bending sequence, relights the LED at the updated position with the second color until all bending sequences are completed.

[0035] The method of automatically indicating tool loading parameters and bending position on a bending machine according to the present invention has the following technical effects: Reduced operational difficulty: Operators (especially beginners) do not need to perform complex calculations. They can complete precise tool loading and bending positioning simply by following the indicator light, which greatly shortens the training cycle and learning curve.

[0036] Improved efficiency: The automatic calculation and direct display of the die-cutting scheme eliminates the need for manual calculation and measurement, thereby improving the efficiency of mold installation and product changeover.

[0037] Reduce errors: Avoid tool placement misalignment or length mismatch caused by human calculation or memory errors, thereby reducing the risk of product scrap and mold damage.

[0038] Enhanced safety: Clear visual indicators help operators concentrate better, reducing misoperations caused by unclear positioning and improving processing safety.

[0039] Standardized operations are achieved: any operator can operate according to uniform visual instructions, ensuring the consistency and repeatability of the processing.

[0040] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for automatically indicating tool loading parameters and bending position on a bending machine, characterized in that, Includes the following steps: Step 1: Read the sheet metal drawing of the product to be processed and obtain the bending process parameters, which include at least the bending line length L; Step 2: Based on the bending process parameters and the preset mold library information, the required blade alignment parameters for installing the bending mold on the bending machine are calculated using the bending blade alignment algorithm. The blade alignment parameters include the blade arrangement start point P and the blade arrangement length Q. Step 3: Convert the starting point P and the length Q of the blade rack into control signals. The control signals are used to control the lighting position and lighting length of the corresponding LED beads on the programmable LED strip arranged along the length direction of the bending machine. Step 4: According to the control signal, the programmable light strip illuminates the corresponding length of LED beads in the first color at the position corresponding to the starting point P and the length Q of the cutter bar, so as to intuitively guide the operator to install the mold. Step 5: During the bending process, according to the bending position corresponding to the current bending sequence, control the programmable light strip to light up the LED beads in the second color at the point corresponding to the bending position, so as to intuitively guide the operator to perform the bending and positioning of the sheet metal.

2. The method for automatically indicating tool loading parameters and bending position on a bending machine according to claim 1, characterized in that, The knife-joining algorithm in step two specifically includes: Establish a mathematical model: The target bending line length L is equal to the sum of the products of the lengths of each type of die segment used and the quantity used, i.e. In the formula, n represents the number of available mold segment types; l i x is the length of the i-th type of mold segment; i Let x be the number of the i-th type of mold segment used and x i The integer is x, and satisfies the constraint 0 ≤ x. i ≤m i m i The maximum number of available mold segments of type i; Find the set of integer solutions {x1, x2, ..., xn} that satisfy the given equations and constraints. n }, as a knife-fighting strategy.

3. The method for automatically indicating tool loading parameters and bending position on a bending machine according to claim 1, characterized in that, In step three, the method for converting the tool loading parameters into the LED lighting position includes: Obtain the total length S of the bending machine, the installation direction E of the LED strip, and the spacing D between the LED beads; When the LED strip is installed from left to right, then: The starting position of the LED light is P * D; The endpoint of the LED light being lit = (P + Q) * D; When the LED strip is installed from right to left, then: The starting position of the LED light is calculated as: [S - (P + Q)] * D; The endpoint of the LED light being lit = (S - P) * D.

4. The method for automatically indicating tool loading parameters and bending position on a bending machine according to claim 1 or 3, characterized in that: In step three, the programmable light strip is a chain of LED beads connected in series, and the control signal is a digital signal that follows a timing protocol and is sent through the controller. The digital signal contains a color data packet corresponding to each LED bead. Each LED bead receives its own color data, updates its display, and passes the remaining data to the next LED bead.

5. The method for automatically indicating tool loading parameters and bending position on a bending machine according to claim 1, characterized in that: In step five, when the bending machine is in different operating states, the programmable light strip is controlled to indicate with different colors. The operating states include standby, running, fault, and emergency stop.

6. The method for automatically indicating tool loading parameters and bending position on a bending machine according to claim 1, characterized in that: The first color and the second color are different colors.

7. The method for automatically indicating tool loading parameters and bending position on a bending machine according to claim 1, characterized in that, Step five includes the following steps: when the current bending sequence is completed, the system automatically switches to the next bending sequence. The programmable LED strip turns off the second-color LED indicating the current bending position and, according to the bending position corresponding to the next bending sequence, relights the LED at the updated position with the second color until all bending sequences are completed.

8. The method for automatically indicating tool loading parameters and bending position on a bending machine according to claim 1, characterized in that, Step four specifically includes: When the blade assembly parameters include multiple discontinuous blade mounting intervals, the programmable light strip simultaneously or at different times illuminates the corresponding length of LED beads in the first color at the positions corresponding to each blade mounting interval, so as to intuitively instruct the operator to install the segmented mold; wherein, the discontinuous blade mounting intervals are determined by the mold installation positions corresponding to the multiple non-adjacent bending steps required for bending the product.

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