A multi-wire saw deviation correction and self-adaptive wire arranging control method

Abstract

This invention discloses a method for correcting wire deviation and adaptive wire laying control in a multi-wire cutting machine, comprising the following steps: Step S1: Reduce the tension of the cutting wire 1; Step S2: Control the wire feeding motor, spindle motor, and take-up motor to operate synchronously, and obtain the wire feeding direction through the correction signal of the wire laying mechanism; Step S3: The wire laying mechanism selects the correction signal control for following control to determine the edge position of the wire wheel in the width direction; Step S4: Control the wire laying mechanism to follow the movement according to the correction signal, and calculate the wire laying pitch through iterative calculation; Step S5: The wire laying mechanism and the wire feeding wheel operate in linkage, and the wire laying mechanism moves a certain pitch for each rotation of the wire feeding wheel. This invention can abandon the traditional step compensation mechanism and adopt an adaptive dynamic adjustment strategy based on real-time feedback to achieve continuous and stable laying of the cutting wire 1, fundamentally suppressing tension fluctuations.

Description

Technical Field

[0001] This invention relates to wire cutting equipment, and more specifically, to a method for correcting deviation and adaptive wire arrangement control in a multi-wire cutting machine. Background Technology

[0002] Multi-wire cutting machines, with their advantages of high precision and low wear, have become key equipment in the field of high-precision material cutting. With the development of intelligent manufacturing and unmanned factories, higher requirements are being placed on the reliability, stability, and automation level of multi-wire cutting technology.

[0003] As a core component of multi-wire cutting, the wire guide system directly affects the synchronization of the cutting wire speed, and its state can be intuitively reflected by the fluctuation of the tension lever. Currently, most common wire guide systems use physical sensors such as photoelectric sensors to detect the cutting wire position. This method is prone to sudden changes in wire length during the correction process, leading to drastic tension fluctuations and even increasing the risk of wire breakage. This has become a major uncertainty factor affecting the stable operation of the system.

[0004] Moreover, in the current correction system, it is impossible for technicians to make corrections and adjustments to the wire layout based on experience; in unmanned production scenarios, the cutting line must have extremely high operational reliability, and the current wire layout equipment of multi-wire cutting equipment cannot achieve automatic adjustment.

[0005] Therefore, there is an urgent need for a better adaptive cable management solution. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method for correction and adaptive wire arrangement control of a multi-wire cutting machine. It adopts an adaptive dynamic adjustment strategy based on real-time feedback to achieve continuous and stable arrangement of cutting wires and fundamentally suppress tension fluctuations.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A method for correcting wire deviation and adaptive wire arrangement control of a multi-wire cutting machine includes the following steps:

[0009] Step S1: Reduce the tension of the cutting wire;

[0010] Step S2: Control the pay-off motor, spindle motor and take-up motor to run synchronously, and obtain the pay-off direction through the correction signal of the wire laying mechanism;

[0011] Step S3: The cable laying mechanism selects the correction signal control for following control to determine the edge position of the cable wheel in the width direction;

[0012] Step S4: Control the cable laying mechanism to follow the movement according to the correction signal, and calculate the cable laying pitch through iterative calculation;

[0013] Step S5: The wire laying mechanism and the wire feeding wheel operate in conjunction. For every rotation of the wire feeding wheel, the wire laying mechanism moves one pitch.

[0014] Further, in step S1, the cutting wire tension is adjusted to 2 / 3 of the normal cutting tension.

[0015] Further, step S2 includes:

[0016] Step S201: The wiring mechanism remains stationary;

[0017] Step S202: Control the pay-off motor, spindle motor and take-up motor to run synchronously, and the correction sensor detects the line position deviation and outputs the corresponding correction signal;

[0018] Step S203: If a left correction signal is detected, control the wiring mechanism to move to the left according to the preset pitch, and continue to control the wiring mechanism to move to the left until a right correction signal is triggered. Record the current direction Dir.0 = -1. If a right correction signal is detected, control the wiring mechanism to move to the right according to the preset pitch, and continue to control the wiring mechanism to move to the right until a left correction signal is triggered. Record the current direction Dir.0 = 1.

[0019] Furthermore, step S2 also includes:

[0020] Step S204: Pause the cable laying mechanism and continue laying the cable, waiting for the next layer correction signal;

[0021] Step S205: Repeat steps S203 and S204;

[0022] Step S206: Check the Dir.0 record value. If it is the same for 3 consecutive times, the initial direction has been successfully identified; otherwise, return to S205 to continue the detection.

[0023] Step S207: Assign the direction recognition result Dir.0 to the system cabling direction variable Dir. as the reference direction for subsequent cabling control.

[0024] Further, step S3 includes:

[0025] Step S301: Maintain synchronous operation of take-up and feed with the spindle and feed the wire freely;

[0026] Step S302: Select a correction signal based on the Dir. value for follow-up control;

[0027] Step S303: Determine the current edge position of the thread spool;

[0028] Step S304: Assign edge position parameters based on the Dir. value;

[0029] Step S305: Calculate the width of the thread spool;

[0030] Step S306: Set the origin of the cabling system and define the positive direction of the cabling and the total width of the cabling on the spool.

[0031] Further, in step S302, if Dir. = 1, speed interpolation is performed using the left correction signal as feedback; if Dir. = -1, speed interpolation is performed using the right correction signal as feedback.

[0032] In step S303, when the correction signal is read for the first five consecutive scanning cycles, the current position of the cable servo motor is recorded as P. Edge -0; if the signal persists after the deceleration, then P is confirmed. Edge -0 represents the current edge position;

[0033] In step S304, if Dir. = 1, let P Edge -1 = P Edge -0; if Dir. = -1, let P Edge -2 = P Edge -0;

[0034] In step S305, the width P of the thread spool is calculated. Edge =P Edge -1-P Edge -2;

[0035] In step S306: P obtained when Dir. = -1 Edge -0 is set as the origin of the cabling system; Dir. = 1 is defined as the positive direction of cabling, and the total width of the cabling on the reel is P. Edge .

[0036] Further, step S4 includes:

[0037] Step S401: Pause the cable laying mechanism and continue synchronous free cable laying;

[0038] Step S402: Signal time monitoring;

[0039] In step S402, if Dir. = 1, record time t0' when the left correction signal disappears and t1' when the right correction signal is triggered; if Dir. = -1, record t0' when the right correction signal disappears and t1' when the left correction signal is triggered; calculate the time difference t' = t1' - t0' in the corresponding directions.

[0040] Step S403: First adaptive run, record the starting position P 11 and time point t 11 Start the cable laying mechanism to run along the Dir. direction, with a preset pitch of 1mm, until a reverse correction signal is triggered; stop the cable laying and record position P. 12With time point t 12 ;

[0041] Step S404: Second adaptive run, record the starting position P 21 and time t 21 Start the cable laying mechanism to run along the Dir. direction, with the preset pitch set to 2mm, until the reverse correction signal is triggered; stop the cable laying and record the position P. 22 With time point t 22 ;

[0042] Step S405: If the cabling reaches the edge in step S403 or 404, the corresponding step is re-executed;

[0043] Step S406: Calculate the difference:

[0044] P 10 =P 12 -P 11 , t 10 =t 12 -t 11 ;

[0045] P 20 =P 22 -P 21 , t 20 =t 22 -t 21 ;

[0046] Step S407: Calculate the initial value λ of the cable pitch:

[0047] (t) 10 +t')×λ1×20 / 60=P 10 ;

[0048] (t) 20 +t')×λ2×20 / 60=P 20 ;

[0049] The average value of λ1 and λ2 is taken as the initial pitch value λ.

[0050] Furthermore, step S4 also includes:

[0051] Step S408: Pause the cabling, and re-execute steps S402 and S403 to correct the time difference t';

[0052] Step S409: Adaptive iterative operation, record the initial position P0 and time t0, start the cable laying mechanism to run along the Dir. direction at a pitch of 2λ until the reverse correction signal is triggered; stop the cable laying, record the position P1 and time t 1；

[0053] Calculate: t = t1 - t0, P = P1 - P0;

[0054] Step S410: Adaptive iterative calculation: (t+t')×λ×20 / 60=P; Calculate the new λ and assign it to λ.

[0055] Furthermore, step S4 also includes:

[0056] Step S411: Take the average of the current λ and the previous λ, and update the λ value;

[0057] Step S412: Repeat steps S408 to S411 until the deviation of the most recent 5 λ calculation values ​​is within ±1‰, at which point the adaptive iteration is considered complete.

[0058] Further, step S5 includes:

[0059] Step S501: Calculate the midpoint of the cutting wire relative to the left and right correction sensors based on the time difference t', and control the wire laying mechanism to move to that position so that the cutting wire and the wire wheel remain tangential.

[0060] Step S502: Restore the output tension of the wire feeding tension lever to the set value required for the cutting process;

[0061] Step S503: The final wire laying pitch λ is assigned to the wire laying mechanism, so that the wire laying mechanism's wire feeding wheel operates in conjunction with the wire feeding wheel, realizing synchronous linkage control that the wire laying mechanism moves one pitch λ for every revolution of the wire feeding wheel.

[0062] In summary, the present invention has the following beneficial effects:

[0063] This solution, by acquiring feedback signals from the correction mechanism in real time and dynamically predicting and correcting the wire laying pitch, can construct a complete wire laying control logic. This enables the movement of the wire laying mechanism and the wire laying action to be linked, achieving accurate wire laying at the wire laying reel. Moreover, during the wire laying process, the initial wire laying direction and offset can be detected and controlled by the changes in sensor signals, allowing for dynamic detection and identification of the state during the wire laying process.

[0064] In this scheme, the cable laying servo motor is controlled via bus communication, and the adjustment commands generated by the method are executed in real time to dynamically optimize the cable laying speed and position, thereby achieving high-precision and high-stability cable laying control. During actual control, the left and right directions of the correction mechanism are initially defined, eliminating the need for manual intervention in the initial control phase and improving the automation of the entire control system. Attached Figure Description

[0065] Figure 1 This is a schematic diagram of the wire feeding wheel and the wire laying mechanism in this embodiment;

[0066] Figure 2 This is a partial structural diagram of this embodiment;

[0067] Figure 3 This is a schematic diagram of the structure at the location where the left correction signal is triggered in this embodiment;

[0068] Figure 4 This is a schematic diagram of the structure at the location where the right correction signal is triggered in this embodiment.

[0069] Reference numerals: 1. Cutting line; 2. Wire feeding wheel; 3. Wire laying mechanism; 4. Correction sensor; 41. Left correction sensor wheel; 42. Right correction sensor wheel. Detailed Implementation

[0070] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0071] This embodiment discloses a method for correcting wire deviation and adaptive wire arrangement control of a multi-wire cutting machine, referring to... Figures 1-4 As shown, the wire feeding wheel 2 of the cutting wire 1 and the wire laying mechanism 3 can be linked for control, so that the wire laying action of the wire laying mechanism 3 can be consistent with the wire feeding action of the wire feeding wheel 2, avoiding the step compensation situation during the wire feeding process. The adaptive dynamic adjustment strategy based on real-time feedback is adopted to achieve continuous and stable laying of the cutting wire 1, fundamentally suppressing tension fluctuations.

[0072] The control method in this embodiment includes the following steps: step S1 tension pre-reduction, step S2 initial direction identification of wire laying, step S3 edge position identification of the wire wheel, step S4 adaptive adjustment of wire laying pitch, and step S5 system recovery of cutting state.

[0073] Step S1: Adjust the tension of cutting wire 1 to below 80% of the normal cutting tension;

[0074] In step S1, the tension of the cutting wire 1 should be adjusted to 2 / 3 of the normal cutting tension. This is to ensure that even if abnormal wire routing occurs during subsequent adaptive adjustment, the cutting wire 1 can be prevented from breaking or excessively wearing due to overload to the greatest extent possible, while maintaining the basic holding tension required by the roller.

[0075] Step S2: Control the pay-off motor, spindle motor and take-up motor to run synchronously, and obtain the pay-off direction through the correction signal of the wire laying mechanism 3;

[0076] Specifically, step S2 includes:

[0077] Step S201: The wire laying mechanism 3 remains stationary. Since the winding direction of the newly installed cutting wire 1 roll is unknown, the wire laying mechanism 3 on the wire feeding side is stopped first.

[0078] Step S202: Control the pay-off motor, spindle motor, and take-up motor to operate synchronously. The pay-off motor speed is set to a typical value n0 = 20 r / min. This speed strikes a balance between protecting the cutting wire 1 and shortening the recognition time. The wire laying mechanism 3 remains inactive, allowing the cutting wire 1 to be in a free-paying state. After a period of time, the correction sensor 4 detects the wire position deviation and outputs a corresponding correction signal (left or right). The correction sensor 4 includes a left correction sensing wheel 41 and a right correction sensing wheel 42. The left and right correction directions are detected and controlled by the left correction sensing wheel 41 and the right correction sensing wheel 42, respectively. When the cutting wire 1 contacts the corresponding sensing wheel, the pressure of the cutting wire 1 on the sensing wheel increases, thereby acquiring the corresponding detection signal.

[0079] Step S203: If a left correction signal is detected, control the cable laying mechanism 3 to move to the left according to a preset pitch of 1 mm (i.e., the cable laying mechanism 3 moves 1 mm for every revolution of the cable wheel). Continue to control the cable laying mechanism 3 to move to the left until a right correction signal is triggered, and record the current direction Dir.0 = -1.

[0080] If a right correction signal is detected, control the cable laying mechanism 3 to move to the right according to the preset pitch, and continue to control the cable laying mechanism 3 to move to the right until the left correction signal is triggered, and record the current direction Dir.0 = 1;

[0081] Step S204: Pause the cable laying mechanism 3 and continue laying the cable, maintaining the free cable laying state, and wait for the next correction signal;

[0082] Step S205: Repeat steps S203 and S204 to continuously record the value of Dir.0;

[0083] Step S206: Direction consistency determination; check the Dir.0 record value. If it is the same for 3 consecutive times, the initial direction is considered to have been successfully identified; otherwise, return to S205 to continue detection. This mechanism can eliminate misjudgments caused by accidentally reaching the edge of the spool.

[0084] Step S207: Direction parameter confirmation; Assign the direction identification result Dir.0 to the system cabling direction variable Dir. as the reference direction for subsequent cabling control.

[0085] Step S3: The cable laying mechanism 3 selects the correction signal control for follow control to determine the edge position of the cable wheel in the width direction;

[0086] Specifically, step S3 includes:

[0087] Step S301: Maintain synchronous operation of take-up and feed-out with the main shaft and feed the wire freely, keeping the feed-out motor speed n0 = 20 r / min;

[0088] Step S302: Select a correction signal based on the Dir. value for follow-up control;

[0089] In step S302, if Dir. = 1 (line drawing from left to right), the speed interpolation is performed using the left correction signal as feedback, so that it is in the critical state between triggering and not triggering, that is, the signal shows a regular change in each scan cycle, such as the number of times the signal is present or absent within 10 cycles is approximately equal; if Dir. = -1 (line drawing from right to left), then the same control is performed using the right correction signal.

[0090] Step S303: Determine the current edge position of the thread spool;

[0091] In step S303, when the correction signal is read for the first five consecutive scanning cycles, the current position of the cable servo motor is recorded as P. Edge -0; if the signal persists after the deceleration, then P is confirmed. Edge -0 represents the current edge position;

[0092] Step S304: Assign edge position parameters based on the Dir. value;

[0093] In step S304, if Dir. = 1, let P Edge -1 = P Edge -0; if Dir. = -1, let P Edge -2 = P Edge -0;

[0094] Step S305: Calculate the width of the thread spool;

[0095] In step S305, the width P of the thread spool is calculated. Edge =P Edge -1-P Edge -2;

[0096] Step S306: Set the origin of the cabling system and define the positive direction of the cabling and the total width of the cabling on the spool.

[0097] In step S306: P obtained when Dir. = -1 Edge -0 is set as the origin of the cabling system; Dir. = 1 is defined as the positive direction of cabling, and the total width of the cabling on the reel is P. Edge .

[0098] Step S4: Control the cable laying mechanism 3 to follow the movement according to the correction signal, and calculate the cable laying pitch through iterative calculation;

[0099] Specifically, step S4 includes:

[0100] Step S401: Pause the wire feeding mechanism 3 again and continue to feed the wire synchronously and freely. The wire feeding motor speed is n0 = 20 r / min.

[0101] Step S402: Signal time monitoring;

[0102] In step S402, if Dir. = 1, record time t0' when the left correction signal disappears and record t1' when the right correction signal is triggered; if Dir. = -1, record t0' when the right correction signal disappears and record t1' when the left correction signal is triggered (time unit: seconds).

[0103] Calculate the time difference t' = t1' - t0' in the corresponding direction;

[0104] Step S403: First adaptive run, record the starting position P 11 and time point t 11 Start the cable laying mechanism 3 to run along the Dir. direction, with a preset pitch of 1mm, until the reverse correction signal is triggered; stop the cable laying and record the position P. 12 With time point t 12 ;

[0105] Step S404: Second adaptive run, record the starting position P 21 and time t 21 Start the cable laying mechanism 3 to run along the Dir. direction, with the preset pitch set to 2mm, until the reverse correction signal is triggered; stop the cable laying and record the position P. 22 With time point t 22 ;

[0106] Step S405: If the cabling reaches the edge in step S403 or 404, the corresponding step is re-executed;

[0107] Step S406: Calculate the difference:

[0108] P 10 =P 12 -P 11 , t 10 =t 12 -t 11 ;

[0109] P 20 =P 22 -P 21 , t 20 =t 22 -t 21 ;

[0110] Step S407: Calculate the initial value λ of the cable pitch:

[0111] (t) 10 +t')×λ1×20 / 60=P 10 ;

[0112] (t) 20 +t')×λ2×20 / 60=P 20 ;

[0113] The average value of λ1 and λ2 is taken as the initial pitch value λ.

[0114] Step S408: Pause the cabling, and re-execute steps S402 and S403 to correct the time difference t';

[0115] Step S409: Adaptive iterative operation;

[0116] Record the initial position P0 and time t0, start the cable laying mechanism 3 to run along the Dir. direction at a pitch of 2λ until the reverse correction signal is triggered; stop the cable laying, and record the position P1 and time t. 1；

[0117] Calculate: t = t1 - t0, P = P1 - P0;

[0118] Step S410: Adaptive iterative calculation;

[0119] (t+t')×λ×20 / 60=P; Calculate the new λ and assign it to λ.

[0120] Step S411: Take the average of the current λ and the previous λ, and update the λ value;

[0121] Step S412: Repeat steps S408 to S411 until the deviation of the most recent 5 λ calculation values ​​is within ±1‰, at which point the adaptive iteration is considered complete.

[0122] Step S5: The wire laying mechanism 3 and the wire feeding wheel 2 operate in conjunction. For every rotation of the wire feeding wheel 2, the wire laying mechanism 3 moves at a certain pitch.

[0123] Specifically, step S5 includes:

[0124] Step S501: Calculate the midpoint position of the cutting line 1 relative to the left and right correction sensors 4 based on the time difference t', and control the wire laying mechanism 3 to move to that position so that the cutting line 1 and the wire wheel maintain a tangential posture.

[0125] Step S502: Restore the output tension of the wire feeding tension lever to the set value required for the cutting process;

[0126] Step S503: The final wire laying pitch λ is assigned to the wire laying mechanism 3, so that the wire laying mechanism 3 and the wire feeding wheel 2 operate in tandem, realizing synchronous linkage control that the wire laying mechanism 3 moves one pitch λ for every revolution of the wire feeding wheel 2.

[0127] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for correcting deviation and adaptive wire arrangement control of a multi-wire cutting machine, characterized in that, Including the following steps: Step S1: Reduce the tension of the cutting wire; Step S2: Control the pay-off motor, spindle motor and take-up motor to run synchronously, and obtain the pay-off direction through the correction signal of the wire laying mechanism; Step S3: The cable laying mechanism selects the correction signal control for following control to determine the edge position of the cable wheel in the width direction; Step S4: Control the cable laying mechanism to follow the movement according to the correction signal, and calculate the cable laying pitch through iterative calculation; Step S5: The wire laying mechanism and the wire feeding wheel operate in conjunction. For every rotation of the wire feeding wheel, the wire laying mechanism moves one pitch. Step S2 includes: Step S201: The wiring mechanism remains stationary; Step S202: Control the pay-off motor, spindle motor and take-up motor to run synchronously, and the correction sensor detects the line position deviation and outputs the corresponding correction signal; Step S203: If a left correction signal is detected, control the cable laying mechanism to move to the left according to the preset pitch, and continue to control the cable laying mechanism to move to the left until a right correction signal is triggered, and record the current direction Dir.0 = -1; If a right correction signal is detected, control the cable laying mechanism to move to the right according to the preset pitch, and continue to control the cable laying mechanism to move to the right until a left correction signal is triggered, and record the current direction Dir.0 = 1; Step S2 further includes: Step S204: Pause the cable laying mechanism and continue laying the cable, waiting for the next layer correction signal; Step S205: Repeat steps S203 and S204; Step S206: Check the Dir.0 record value. If it is the same for 3 consecutive times, the initial direction has been successfully identified; otherwise, return to S205 to continue the detection. Step S207: Assign the direction recognition result Dir.0 to the system cabling direction variable Dir. as the reference direction for subsequent cabling control.

2. The method for correction and adaptive wire arrangement control of a multi-wire cutting machine according to claim 1, characterized in that, In step S1, the cutting wire tension is adjusted to 2 / 3 of the normal cutting tension.

3. The method for correction and adaptive wire arrangement control of a multi-wire cutting machine according to claim 1, characterized in that, Step S3 includes: Step S301: Maintain synchronous operation of take-up and feed with the spindle and feed the wire freely; Step S302: Select a correction signal based on the Dir. value for follow-up control; Step S303: Determine the current edge position of the thread spool; Step S304: Assign edge position parameters based on the Dir. value; Step S305: Calculate the width of the thread spool; Step S306: Set the origin of the cabling system and define the positive direction of the cabling and the total width of the cabling on the spool.

4. The method for correction and adaptive wire arrangement control of a multi-wire cutting machine according to claim 3, characterized in that, In step S302, if Dir. = 1, speed interpolation is performed using the left correction signal as feedback; if Dir. = -1, speed interpolation is performed using the right correction signal as feedback. In step S303, when the correction signal is read for the first five consecutive scanning cycles, the current position of the cable servo motor is recorded as P. Edge -0; if the signal persists after the deceleration, then P is confirmed. Edge -0 represents the current edge position; In step S304, if Dir. = 1, let P Edge -1 = P Edge -0; if Dir. = -1, let P Edge -2 = P Edge -0; In step S305, the width P of the thread spool is calculated. Edge =P Edge -1-P Edge -2; In step S306: P obtained when Dir. = -1 Edge -0 is set as the origin of the cabling system; Dir. = 1 is defined as the positive direction of cabling, and the total width of the cabling on the reel is P. Edge .

5. The method for correction and adaptive wire arrangement control of a multi-wire cutting machine according to claim 4, characterized in that, Step S4 includes: Step S401: Pause the cable laying mechanism and continue synchronous free cable laying; Step S402: Signal time monitoring; In step S402, if Dir. = 1, record time t0' when the left correction signal disappears and t1' when the right correction signal is triggered; if Dir. = -1, record t0' when the right correction signal disappears and t1' when the left correction signal is triggered; calculate the time difference t' = t1' - t0' in the corresponding directions. Step S403: First adaptive run, record the starting position P 11 and time point t 11 Start the cable laying mechanism to run along the Dir. direction, with a preset pitch of 1mm, until a reverse correction signal is triggered; stop the cable laying and record position P. 12 With time point t 12 ; Step S404: Second adaptive run, record the starting position P 21 and time t 21 Start the cable laying mechanism to run along the Dir. direction, with the preset pitch set to 2mm, until the reverse correction signal is triggered; stop the cable laying and record the position P. 22 With time point t 22 ; Step S405: If the cabling reaches the edge in step S403 or 404, the corresponding step is re-executed; Step S406: Calculate the difference: P 10 =P 12 -P 11 ,t 10 =t 12 -t 11 ; P 20 =P 22 -P 21 ,t 20 =t 22 -t 21 ; Step S407: Calculate the cable pitch λ: (t 10 +t')×λ1×20 / 60=P 10 ; (t 20 +t')×λ2×20 / 60=P 20 ; The average value of λ1 and λ2 is taken as the cable pitch λ.

6. The method for correction and adaptive wire arrangement control of a multi-wire cutting machine according to claim 5, characterized in that, Step S4 further includes: Step S408: Pause the cabling, and re-execute steps S402 and S403 to correct the time difference t'; Step S409: Adaptive iterative operation, record the initial position P0 and time t0, start the cable laying mechanism to run along the Dir. direction at a pitch of 2λ until the reverse correction signal is triggered; stop the cable laying, record the position P1 and time t 1； Calculate: t = t1 - t0, P = P1 - P0; Step S410: Adaptive iterative calculation: (t+t')×λ×20 / 60=P; Calculate the new λ and assign it to λ.

7. The method for correcting and adaptive wire laying control of a multi-wire cutting machine according to claim 6, characterized in that, Step S4 further includes: Step S411: Take the average of the current λ and the previous λ, and update the λ value; Step S412: Repeat steps S408 to S411 until the deviation of the most recent 5 λ calculation values ​​is within ±1‰, at which point the adaptive iteration is considered complete.

8. The method for correction and adaptive wire arrangement control of a multi-wire cutting machine according to claim 7, characterized in that, Step S5 includes: Step S501: Calculate the midpoint of the cutting wire relative to the left and right correction sensors based on the time difference t', and control the wire laying mechanism to move to that position so that the cutting wire and the wire wheel remain tangential. Step S502: Restore the output tension of the wire feeding tension lever to the set value required for the cutting process; Step S503: The final wire laying pitch λ is assigned to the wire laying mechanism, so that the wire feeding wheel of the wire laying mechanism operates in conjunction with the mechanism, and the wire laying mechanism moves one wire laying pitch λ for each rotation of the wire feeding wheel.

Images