Machining control system based on casting drilling

Abstract

The invention relates to the technical field of drilling machining control, and discloses a machining control system based on casting drilling, the machining control system comprises a chip removal monitoring module, a channel monitoring module and a chip removal control module, and real-time monitoring and automatic control of chip accumulation and chip removal channel blockage in the drilling machining process are achieved; the chip removal monitoring module utilizes a reflective optical sensor to accurately detect the chip accumulation amount, and ensures the accuracy of monitoring data by establishing a relation model between the light intensity and the chip accumulation amount; the channel monitoring module judges the unblocked condition of the chip removal channel in real time through a flow sensor, and the blocked position is accurately positioned; the chip removal control module automatically adjusts the wind power of a dust collection fan or triggers a vibrator to conduct dredging treatment according to the monitoring result, it is ensured that cuttings are discharged in time, and machining quality reduction and equipment faults are avoided; according to the system, the machining efficiency and quality are remarkably improved, and manual intervention and equipment maintenance cost are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of drilling processing control, and in particular to a processing control system based on casting drilling. Background Art

[0002] In the field of modern mechanical processing, drilling is a common and important processing method, which is widely used in the processing of metal, plastic, composite materials and other workpieces. However, a large amount of chips will be generated during the drilling process. If the chips cannot be discharged in time, it will cause chip accumulation, which will affect the processing quality, tool life and even equipment operation safety. Especially in high-precision and high-efficiency processing scenarios, chip accumulation and chip removal channel blockage are particularly prominent, which may cause problems such as reduced processing accuracy, increased tool wear, and increased equipment failure rate.

[0003] Traditional chip removal methods mainly rely on manual cleaning or simple mechanical chip removal devices, which have the following shortcomings: Poor real-time performance: Manual cleaning cannot monitor chip accumulation in real time and intervention can often only be made after a problem occurs, resulting in reduced processing efficiency.

[0004] Low degree of automation: Traditional mechanical chip removal devices lack intelligent monitoring and control functions and are unable to dynamically adjust chip removal strategies based on chip accumulation or blockage in the chip removal channel.

[0005] Low efficiency in blockage treatment: When the chip removal channel is blocked, the traditional method usually requires shutdown and manual cleaning, which not only affects production efficiency but also increases labor costs.

[0006] Therefore, there is an urgent need for an intelligent machining control system that can monitor the chip accumulation and chip removal channel status in real time and achieve precise control, so as to improve machining efficiency, ensure machining quality, reduce equipment failure rate, and reduce manual intervention. Summary of the invention

[0007] The purpose of the present invention is to provide a machining control system based on casting drilling, which solves the technical problems raised in the background technology.

[0008] The purpose of the present invention can be achieved through the following technical solutions: The machining control system based on casting drilling includes: A chip removal monitoring module is used to detect the amount of chip accumulation during the drilling process by arranging multiple reflective optical sensors around the drill hole; A channel monitoring module is used to set a flow sensor in the chip removal channel and detect the air flow in the channel through the flow sensor to determine whether the chip removal channel is unobstructed; The chip removal control module is used to control the chip removal process according to the information obtained by the chip removal monitoring module and the channel monitoring module.

[0009] As a further solution of the present invention: before the chip removal monitoring module works, it measures the light intensity under different chip accumulation amounts through experiments in advance, and then establishes a relationship model between light intensity and chip accumulation amount based on the experimental measurement results, and calculates the chip accumulation coefficient, which represents the change in light intensity caused by unit chip accumulation amount.

[0010] As a further solution of the present invention: the calculation method of the chip accumulation coefficient is as follows: Formulate the equation of the straight line: Q=Q0-K×M; Where Q0 is the reference light intensity when there is no chip accumulation, K is the slope, which indicates the rate of change of light intensity with chip accumulation, that is, the chip accumulation coefficient, M is the chip accumulation, and Q is the light intensity when the chip accumulation is M; The chip accumulation coefficient K is calculated by the least squares method, where the goal of the least squares method is to minimize the sum of squared errors, and the following formula is obtained: ; Where E is the error sum of squares, Q i Different light intensities were measured during the experiment. i To measure different chip accumulation amounts during the experiment, i=1, 2, ... n, where n represents the number of measurements of different chip accumulation amounts; Then set the value of E to 0 and take the partial derivative with respect to K to get the value of K.

[0011] As a further solution of the present invention: the reflective optical sensor detects the amount of chip accumulation as follows: The current light intensity is obtained through a reflective optical sensor, and then combined with Q=Q0-K×M to calculate the current chip accumulation.

[0012] As a further solution of the present invention: when measuring the chip accumulation amount, the light intensity is measured at the same time, that is, the chip accumulation amount and the light intensity are measured synchronously.

[0013] As a further solution of the present invention: the method for judging whether the chip removal channel is unobstructed is as follows: Obtain the air flow rate of the chip removal channel when there is no chip flowing through it, and mark it as K0; At the same time, the air flow rate of the chip removal channel when chips flow through it is monitored in real time, that is, the air flow rate of the chip removal channel when chips are discharged, and it is marked as K; Then, the blockage coefficient D of the chip removal channel is calculated by: D=K / K0; Then the blocking coefficient D of the chip removal channel is compared with the preset blocking threshold DY. When D≥DY, it is determined that the chip removal channel is blocked; otherwise, it is determined that the chip removal channel is unblocked. As a further solution of the present invention: when judging whether the chip removal channel is unobstructed, a flow sensor is provided at the tail of the chip removal channel for judgment; the tail of the chip removal channel refers to the end away from the drilling site.

[0014] As a further solution of the present invention: the chip removal control method is as follows: Accumulation treatment: The chip accumulation amount M obtained by the chip removal monitoring module is compared with the preset accumulation threshold M0: When M>M0, there is a lot of chip accumulation in the current drilling position, which may affect the processing, and a chip cleaning signal is generated; The chip cleaning signal is used to increase the wind force of the dust suction fan set at the entrance of the chip removal channel, so that the chips at the current drilling position can be quickly sucked into the chip removal channel; When M≤M0, the chip accumulation amount at the current drilling position is normal, does not affect the processing, and does not generate a chip cleaning signal. At this time, the dust suction fan set at the entrance of the chip removal channel operates normally according to the preset wind force, so that the chips at the current drilling position are normally sucked into the chip removal channel; Blockage treatment: When the chip removal channel is blocked, the air flow in each part of the chip removal channel is detected by flow sensors evenly set in the chip removal channel and marked as K. j , j =1, 2, ...m, m represents the number of flow sensors in the chip removal channel; The specific method is as follows: Calculate the absolute value of the difference between the air flow rates obtained by the flow sensors at two adjacent locations in the chip removal channel; The calculation formula is: ; Where, the value of j is not 1, KC （j，j-1） is the absolute value of the difference between adjacent air flow rates; Then the absolute value of the difference is compared with the pre-set flow difference threshold: When the absolute value of the difference between two adjacent air flow rates is greater than or equal to the flow difference threshold, it is determined that there is a blockage between the corresponding parts of the adjacent flow sensors in the chip removal channel, and a monomer unblocking signal is generated; When the absolute value of the difference between two adjacent air flow rates is less than the flow difference threshold, the absolute value of the difference between the air flow rates obtained by the flow sensors arranged at the head and the tail of the chip removal channel is calculated; The calculation formula is: ; In the formula, KC（1，m） It is the absolute value of the difference between the air flow rates at the beginning and the end of the chip removal channel; Then the absolute value of the difference is compared with the pre-set flow difference threshold: If the absolute value of the difference between the first and last air flows is greater than or equal to the flow difference threshold, and at the same time, the absolute value of the difference between all two adjacent air flows is less than the flow difference threshold, it is determined that there is a long-distance blockage in the chip removal channel, and a full unblocking signal is generated; If the absolute value of the difference between the first and last air flows is less than the flow difference threshold, and at the same time, the absolute value of the difference between all adjacent air flows is less than the flow difference threshold, it is determined that there is no blockage between the corresponding parts of the adjacent flow sensors in the chip removal channel.

[0015] As a further solution of the present invention: wherein, the vibrator is arranged in the middle of the corresponding part of the adjacent flow sensor.

[0016] As a further solution of the present invention: the monomer unblocking signal is used to trigger the start of a vibrator arranged at a corresponding position of the chip removal channel, and at the same time increase the wind force of the dust suction fan arranged at the entrance of the chip removal channel, and the vibrator vibrates and knocks at the blocked position of the chip removal channel to evacuate the blocked chips, and the chips are made to flow and be discharged through the dust suction fan; The overall unblocking signal is used to trigger the start-up of the vibrators set at all positions of the chip removal channel, and at the same time increase the wind force of the dust suction fan set at the entrance of the chip removal channel. The vibrator vibrates and knocks the entire part of the chip removal channel to evacuate the blocked chips, and the chips are flowed and discharged through the dust suction fan.

[0017] As a further solution of the present invention: after the vibrator is started at time S0, S0 is a preset time period value; The channel monitoring module continues to detect the air flow by setting a flow sensor at the tail of the chip removal channel to determine whether the chip removal channel is unobstructed; At this time, if D≥DY, the drilling operation is stopped and a fault alarm is issued to remind the operator that the chip removal channel is seriously blocked and then manually clean it; On the contrary, it means that the blockage is cleared successfully and the chip removal channel returns to normal.

[0018] Beneficial effects of the present invention: In the present invention, the chip removal monitoring module detects the chip accumulation in real time through a reflective optical sensor, and accurately determines the chip accumulation situation in combination with a chip accumulation coefficient model. The chip removal control module automatically adjusts the wind force of the dust suction fan according to the chip accumulation amount to ensure that the chips are discharged in time, avoiding the influence of processing accuracy and efficiency due to excessive chip accumulation, thereby significantly improving processing quality and production efficiency.

[0019] In the present invention, the channel monitoring module detects the air flow of the chip removal channel in real time through the flow sensor, calculates the blockage coefficient, and can quickly determine whether the chip removal channel is unobstructed. When blockage is detected, the system automatically triggers the vibrator and the dust suction fan to perform local or overall dredging, effectively preventing the chip removal channel from being blocked and ensuring the continuity and stability of the processing process.

[0020] In the present invention, through the coordinated operation of multiple flow sensors in the chip removal channel, the system can accurately locate the blockage position and generate a single clearing signal or a whole clearing signal according to the blockage type (local blockage or long-distance blockage). The linkage operation of the vibrator and the dust suction fan can quickly evacuate the blocked chips, restore the normal operation of the chip removal channel, and reduce downtime.

[0021] The present invention sets a time period detection mechanism after the vibrator is started to continuously monitor the air flow of the chip removal channel to determine the dredging effect. If the blockage problem is not solved, the system will automatically stop the drilling operation and issue a fault alarm to prompt the operator to perform manual cleaning. This intelligent design reduces the frequency of manual intervention and improves the automation level of the system.

[0022] The present invention establishes a relationship model between chip accumulation and light intensity through experiments, and calculates the chip accumulation coefficient by combining the least square method, thereby ensuring the accuracy and reliability of the monitoring data. At the same time, the logic design of the chip removal channel blockage judgment and dredging treatment is scientific and reasonable, which can meet the needs of different processing scenarios and has high practicality and reliability.

[0023] The present invention, through real-time monitoring and automatic control, can effectively prevent equipment failures caused by chip accumulation or chip removal channel blockage, extend the service life of the equipment, and reduce maintenance costs. At the same time, the automatic dredging process reduces the frequency of manual cleaning, further reducing labor costs.

[0024] In summary, the present invention significantly improves the efficiency, quality and reliability of drilling processing through intelligent and automated design, while reducing equipment failure rate and maintenance costs, and is suitable for high-precision and high-efficiency industrial production scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a system block diagram of the processing control system based on casting drilling of the present invention.

[0027] Figure 2 It is a flow chart of a chip removal control module in a machining control system based on casting drilling according to the present invention. DETAILED DESCRIPTION

[0028] 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.

[0029] Embodiment 1 See also Figure 1 and Figure 2 As shown, the present invention is a machining control system based on casting drilling, comprising: A chip removal monitoring module is used to detect the amount of chip accumulation during the drilling process by arranging multiple reflective optical sensors around the drill hole; Among them, under normal circumstances, that is, when there is no chip accumulation and there is air near the drilling area, the light reflection of the reflective optical sensor is normal; when there is chip accumulation, the light is scattered and blocked, and the light intensity received by the reflective optical sensor changes: Before the chip removal monitoring module works, it measures the light intensity under different chip accumulation amounts through experiments. Then, it establishes the relationship model between light intensity and chip accumulation amount through the experimental measurement results, and calculates the chip accumulation coefficient, which represents the change of light intensity caused by unit chip accumulation amount. The chip accumulation factor is calculated as follows: Formulate the equation of the straight line: Q=Q0-K×M; Where Q0 is the reference light intensity when there is no chip accumulation, K is the slope, which indicates the rate of change of light intensity with chip accumulation, that is, the chip accumulation coefficient, M is the chip accumulation, and Q is the light intensity when the chip accumulation is M; The chip accumulation coefficient K is calculated by the least squares method, where the goal of the least squares method is to minimize the sum of squared errors, and the following formula is obtained: ; Where E is the error sum of squares, Q i Different light intensities were measured during the experiment. i In order to obtain different chip accumulation amounts measured during the experiment, i=1, 2, ... n, where n represents the number of times different chip accumulation amounts are measured. When measuring the chip accumulation amount, the light intensity is measured at the same time, that is, the chip accumulation amount and the light intensity are measured synchronously; Then let the value of E be 0, and then find the partial derivative of K to get the value of K; The reflective optical sensor detects chip accumulation as follows: The current light intensity is obtained through a reflective optical sensor, and then combined with Q=Q0-K×M to calculate the current chip accumulation; A chip removal control module is used to pile up the chips around the drilling hole according to the information obtained by the chip removal monitoring module; The chip removal control module is used to ensure that the chips can be removed in a timely and effective manner during the drilling process, maintaining a good processing environment; The accumulation process is as follows: The chip accumulation amount M obtained by the chip removal monitoring module is compared with the preset accumulation threshold M0: When M>M0, there is a lot of chip accumulation in the current drilling position, which may affect the processing, and a chip cleaning signal is generated; The chip cleaning signal is used to increase the wind force of the dust suction fan set at the entrance of the chip removal channel, so that the chips at the current drilling position are quickly sucked into the chip removal channel to reduce the amount of chip accumulation and ensure the normal processing; The dust suction fan is an existing technology. Its working principle is that the motor drives the fan impeller to rotate at high speed, so that the air is discharged at high speed, and the air in the dust suction part at the front end of the fan continuously replenishes the air in the fan, causing an instantaneous vacuum to be generated inside the dust suction fan, forming a negative pressure difference with the external atmospheric pressure. Under the action of this pressure difference, the chips at the current drilling position are sucked in; When M≤M0, the chip accumulation amount at the current drilling position is normal, does not affect processing, and does not generate a chip cleaning signal. At this time, the dust suction fan set at the entrance of the chip removal channel operates normally according to the pre-set wind force, so that the chips at the current drilling position are normally sucked into the chip removal channel.

[0030] Embodiment 1 sets a chip removal monitoring module and uses a reflective optical sensor to monitor the amount of chip accumulation during the drilling process in real time, which can effectively avoid the impact of excessive chip accumulation on processing quality. By establishing a relationship model between light intensity and chip accumulation, and combining the least squares method to calculate the chip accumulation coefficient, the system can accurately determine the chip accumulation situation. The chip removal control module automatically adjusts the wind speed of the dust suction fan according to the amount of chip accumulation to ensure that the chips are discharged in time and maintain a good processing environment, thereby improving processing efficiency and product quality.

[0031] Embodiment 2 See also Figure 1 and Figure 2 As shown, as the second embodiment of the present invention, when the present application is implemented, compared with the first embodiment, the technical solution of this embodiment is different from that of the first embodiment only in that the present embodiment further includes: A channel monitoring module is used to set a flow sensor in the chip removal channel and detect the air flow in the channel through the flow sensor to determine whether the chip removal channel is unobstructed; The specific method is as follows: Obtain the air flow rate of the chip removal channel when there is no chip flowing through it, and mark it as K0; At the same time, the air flow rate of the chip removal channel when chips flow through it is monitored in real time, that is, the air flow rate of the chip removal channel when chips are discharged, and it is marked as K; Then, the blockage coefficient D of the chip removal channel is calculated by: D=K / K0; Then the blocking coefficient D of the chip removal channel is compared with the preset blocking threshold DY. When D≥DY, it is determined that the chip removal channel is blocked; otherwise, it is determined that the chip removal channel is unblocked. When judging whether the chip removal channel is unobstructed, a flow sensor is set at the tail of the chip removal channel to make a judgment; The tail end of the chip removal channel refers to the end away from the drilling site; The chip removal control module is also used to block the chip removal channel according to the information obtained by the channel monitoring module; The blockage is handled as follows: When the chip removal channel is blocked, the air flow in each part of the chip removal channel is detected by flow sensors evenly set in the chip removal channel and marked as K. j , j = 1, 2, ... m, m represents the number of flow sensors in the chip removal channel; The specific method is as follows: The absolute value of the difference between the air flow rates obtained by the flow sensors at two adjacent locations in the chip removal channel is calculated, and then the absolute value of the difference is compared with the preset flow difference threshold: When the absolute value of the difference between two adjacent air flow rates is greater than or equal to the flow difference threshold, it is determined that there is a blockage between the corresponding parts of the adjacent flow sensors in the chip removal channel, and a monomer unblocking signal is generated; The single-unit unblocking signal is used to trigger the start-up of the vibrator set at the corresponding position of the chip removal channel, and at the same time increase the wind force of the dust suction fan set at the entrance of the chip removal channel. The vibrator vibrates and knocks at the blocked position of the chip removal channel to evacuate the blocked chips, and the dust suction fan makes the chips flow and discharge, so as to ensure the normal use of the chip removal channel; Wherein, the vibrator is arranged in the middle of the corresponding part of the adjacent flow sensor; In this embodiment, the vibrator adopts an electromagnetic vibrator, which is a prior art. The electromagnetic vibrator is composed of a vibrating body, a resonant spring, an electromagnet, a base and other components. According to the resonance principle of mechanical vibration, when the circuit is connected, a positive half-cycle pulsating DC voltage is applied to the electromagnetic coil, and a pulse electromagnetic force is generated between the vibrating body and the base by the action of the electromagnet, and the vibrating body is attracted. At this time, the elastic system stores potential energy. In the negative half-cycle, the diode is not turned on, the electromagnetic force disappears, and the vibrating body vibrates in the opposite direction with the help of the potential energy stored in the elastic system. When the absolute value of the difference between two adjacent air flow rates is less than the flow difference threshold, the absolute value of the difference between the air flow rates obtained by the flow sensors at the head and tail of the chip removal channel is calculated, and then the absolute value of the difference is compared with the preset flow difference threshold: If the absolute value of the difference between the first and last air flows is greater than or equal to the flow difference threshold, and at the same time, the absolute value of the difference between all two adjacent air flows is less than the flow difference threshold, it is determined that there is a long-distance blockage in the chip removal channel, and a full unblocking signal is generated; The overall unblocking signal is used to trigger the vibrators set at all positions of the chip removal channel to start, and at the same time increase the wind force of the dust suction fan set at the entrance of the chip removal channel. The vibrator vibrates and knocks the entire part of the chip removal channel to evacuate the blocked chips, and the chips are flowed and discharged through the dust suction fan to ensure the normal use of the chip removal channel; If the absolute value of the difference between the first and last air flow rates is less than the flow difference threshold, and at the same time, the absolute value of the difference between all two adjacent air flow rates is less than the flow difference threshold, it is determined that there is no blockage between the corresponding parts of the adjacent flow sensors in the chip removal channel; Embodiment 2 adds a channel monitoring module based on Embodiment 1. The air flow rate of the chip removal channel is detected in real time by the flow sensor, and it can determine whether the chip removal channel is unobstructed. By calculating the blockage coefficient, the system can promptly detect the blockage of the chip removal channel and trigger the vibrator and dust suction fan to clear the blockage. This solution can not only effectively prevent the blockage of the chip removal channel, but also quickly restore the normal operation of the chip removal channel through local or overall unblocking measures, further improving the reliability and processing efficiency of the system.

[0032] Embodiment 3 See also Figure 1 and Figure 2 As shown, as the third embodiment of the present invention, when the present application is implemented, compared with the first and second embodiments, the technical solution of this embodiment is to combine the solutions of the first and second embodiments, and the difference between the technical solution of this embodiment and the first and second embodiments is that in this embodiment: after the S0 time when the vibrator is started, S0 is a preset time period value; The channel monitoring module continues to detect the air flow by setting a flow sensor at the tail of the chip removal channel to determine whether the chip removal channel is unobstructed; At this time, if D≥DY, the drilling operation is stopped and a fault alarm is issued to remind the operator that the chip removal channel is seriously blocked and then manually clean it; On the contrary, it means that the blockage is cleared successfully and the chip removal channel returns to normal; Example 3 combines the technical solutions of Example 1 and Example 2, and sets a time period detection mechanism after the vibrator is started. By continuously monitoring the air flow of the chip removal channel, the system can determine whether the chip removal channel has returned to normal after the dredging operation. If the blockage problem is not solved, the system will automatically stop the drilling operation and issue a fault alarm, prompting the operator to perform manual cleaning. This solution further improves the intelligence level of the system, ensuring that manual intervention can be taken in time when automated processing is ineffective to avoid equipment damage or processing accidents.

[0033] Embodiment 4 See also Figure 1 and Figure 2 As shown, as the fourth embodiment of the present invention, when the present application is implemented specifically, compared with the first, second and third embodiments, the technical solution of this embodiment is to combine the solutions of the above-mentioned first, second and third embodiments for implementation.

[0034] Embodiment 4 combines the technical solutions of Embodiment 1, Embodiment 2 and Embodiment 3 to form a complete processing control system. By integrating chip removal monitoring, channel monitoring and dredging processing functions, the system can realize the full process automation management from chip accumulation detection to chip removal channel dredging. This solution not only significantly improves the stability and efficiency of the processing process, but also reduces the frequency of manual intervention, reduces the occurrence of equipment failures and processing accidents, and is suitable for high-precision and high-efficiency industrial production scenarios.

[0035] The above formulas are all dimensionless and numerical calculations. The formula is a formula for the most recent real situation obtained by collecting a large amount of data and performing software simulation. The preset parameters and thresholds in the formula are set by technicians in this field according to actual conditions.

[0036] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A machining control system based on casting drilling, characterized in that: include: A chip removal monitoring module is used to detect the amount of chip accumulation during the drilling process by setting multiple reflective optical sensors around the drill hole; A channel monitoring module is used to set a flow sensor in the chip removal channel and detect the air flow in the channel through the flow sensor to determine whether the chip removal channel is unobstructed; The chip removal control module is used to control the chip removal process according to the information obtained by the chip removal monitoring module and the channel monitoring module.

2. The machining control system based on casting drilling according to claim 1 is characterized in that: The method of judging whether the chip removal channel is unobstructed is as follows: Obtain the air flow rate of the chip removal channel when there is no chip flowing through it, and mark it as K0; At the same time, the air flow rate of the chip removal channel when chips flow through it is monitored in real time, that is, the air flow rate of the chip removal channel when chips are discharged, and it is marked as K; Then, the blockage coefficient D of the chip removal channel is calculated by: D=K / K0; Then the blockage coefficient D of the chip removal channel is compared with a preset blockage threshold DY. When D≥DY, it is determined that the chip removal channel is blocked; otherwise, it is determined that the chip removal channel is unblocked.

3. The machining control system based on casting drilling according to claim 2 is characterized in that: When judging whether the chip removal channel is unobstructed, the judgment is made by setting a flow sensor at the tail of the chip removal channel; the tail of the chip removal channel refers to the end away from the drilling position.

4. The machining control system based on casting drilling according to claim 2 is characterized in that: The chip removal control method is as follows: Accumulation treatment: The chip accumulation amount M obtained by the chip removal monitoring module is compared with the preset accumulation threshold M0: When M>M0, there is a lot of chip accumulation in the current drilling position, which may affect the processing, and a chip cleaning signal is generated; The chip cleaning signal is used to increase the wind force of the dust suction fan set at the entrance of the chip removal channel, so that the chips at the current drilling position can be quickly sucked into the chip removal channel; When M≤M0, the chip accumulation amount at the current drilling position is normal, does not affect the processing, and does not generate a chip cleaning signal. At this time, the dust suction fan set at the entrance of the chip removal channel operates normally according to the preset wind force, so that the chips at the current drilling position are normally sucked into the chip removal channel; Blockage treatment: When the chip removal channel is blocked, the air flow in each part of the chip removal channel is detected by flow sensors evenly set in the chip removal channel and marked as K. j , j =1, 2, ...m, m represents the number of flow sensors in the chip removal channel; The specific method is as follows: Calculate the absolute value of the difference between the air flow rates obtained by the flow sensors at two adjacent locations in the chip removal channel; Then the absolute value of the difference is compared with the pre-set flow difference threshold: When the absolute value of the difference between two adjacent air flow rates is greater than or equal to the flow difference threshold, it is determined that there is a blockage between the corresponding parts of the adjacent flow sensors in the chip removal channel, and a monomer unblocking signal is generated; When the absolute value of the difference between two adjacent air flow rates is less than the flow difference threshold, the absolute value of the difference between the air flow rates obtained by the flow sensors arranged at the head and the tail of the chip removal channel is calculated; Then the absolute value of the difference is compared with the pre-set flow difference threshold: If the absolute value of the difference between the first and last air flows is greater than or equal to the flow difference threshold, and at the same time, the absolute value of the difference between all two adjacent air flows is less than the flow difference threshold, it is determined that there is a long-distance blockage in the chip removal channel, and a full unblocking signal is generated; If the absolute value of the difference between the first and last air flows is less than the flow difference threshold, and at the same time, the absolute value of the difference between all adjacent air flows is less than the flow difference threshold, it is determined that there is no blockage between the corresponding parts of the adjacent flow sensors in the chip removal channel.

5. The machining control system based on casting drilling according to claim 4 is characterized in that: The single clearing signal is used to trigger the vibrator set at the corresponding position of the chip removal channel to start, and at the same time increase the wind force of the dust suction fan set at the entrance of the chip removal channel. The vibrator vibrates and knocks at the blocked position of the chip removal channel to evacuate the blocked chips, and the chips are flowed and discharged through the dust suction fan; The overall unblocking signal is used to trigger the start-up of the vibrators set at all positions of the chip removal channel, and at the same time increase the wind force of the dust suction fan set at the entrance of the chip removal channel. The vibrator vibrates and knocks the entire part of the chip removal channel to evacuate the blocked chips, and the chips are flowed and discharged through the dust suction fan.

6. The machining control system based on casting drilling according to claim 5, characterized in that: After the S0 time when the vibrator is started, S0 is the preset time period value; The channel monitoring module continues to detect the air flow by setting a flow sensor at the tail of the chip removal channel to determine whether the chip removal channel is unobstructed; At this time, if D≥DY, the drilling operation is stopped and a fault alarm is issued to remind the operator that the chip removal channel is seriously blocked and then manually clean it; On the contrary, it means that the blockage is cleared successfully and the chip removal channel returns to normal.

7. The machining control system based on casting drilling according to claim 5, characterized in that: in, The vibrator is arranged in the middle of the corresponding part of the adjacent flow sensor.

8. The machining control system based on casting drilling according to claim 1, characterized in that: Before working, the chip removal monitoring module measures the light intensity under different chip accumulation amounts through experiments, and then establishes a relationship model between light intensity and chip accumulation amount based on the experimental measurement results, and calculates the chip accumulation coefficient, which represents the change in light intensity caused by unit chip accumulation amount.

9. The machining control system based on casting drilling according to claim 8, characterized in that: The chip accumulation factor is calculated as follows: Formulate the equation of the straight line: Q=Q0-K×M; Where Q0 is the reference light intensity when there is no chip accumulation, K is the slope, which indicates the rate of change of light intensity with chip accumulation, that is, the chip accumulation coefficient, M is the chip accumulation, and Q is the light intensity when the chip accumulation is M; The chip accumulation coefficient K is calculated by the least squares method, where the goal of the least squares method is to minimize the sum of squared errors, and the following formula is obtained: ； Where E is the error sum of squares, Q i Different light intensities were measured during the experiment. i To measure different chip accumulation amounts during the experiment, i=1, 2, ... n, where n represents the number of measurements of different chip accumulation amounts; Then set the value of E to 0 and take the partial derivative with respect to K to get the value of K.

10. The machining control system based on casting drilling according to claim 9, characterized in that: The reflective optical sensor detects the amount of chip accumulation as follows: The current light intensity is obtained through a reflective optical sensor, and then combined with Q=Q0-K×M to calculate the current chip accumulation.

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