CN117428229A - Numerical control drilling machine and control system thereof - Google Patents

Abstract

The invention discloses a CNC drilling machine and its control system. The CNC drilling machine and its control system include a CNC drilling machine data acquisition center, a CNC drilling machine data processing center and a CNC drilling machine control center. The invention obtains the drilling data of the designated CNC drilling machine within the preset time period through the CNC drilling machine data collection center and sends it to the CNC drilling machine data processing center. Then the CNC drilling machine data processing center processes the drilling data according to the received drilling data. Calculate the drilling quality score, drilling efficiency score, drilling stability score and drilling profit score of the designated CNC drilling machine, then comprehensively calculate the comprehensive drilling efficiency score of the designated CNC drilling machine and send the calculated results to The data drilling machine control center is finally received by the CNC drilling machine control center and control measures are taken based on the measured comprehensive benefits, which improves the accuracy of drilling comprehensive benefit monitoring and solves the problem of drilling comprehensive benefit monitoring accuracy in the existing technology. low question.

Description

A CNC drilling machine and its control system

Technical field

The present invention relates to the field of numerical control technology, and in particular to a numerical control drilling machine and its control system.

Background technique

Drilling machine refers to the collective name of machinery and equipment that uses tools that are harder and sharper than the target object to leave cylindrical holes or holes in the target object through rotating cutting or rotating extrusion. Achieve desired results by drilling precision parts. With the increase in human resource costs, most companies are considering CNC drilling machines as their development direction. CNC drilling machines are mainly used for drilling, reaming, chamfering and other processing. They are widely used in the automotive, aerospace, and engineering machinery industries. They are especially suitable for some hardware parts that have multiple holes that need to be processed. The drilling accuracy and drilling speed of CNC drilling machines are significantly improved compared to ordinary drilling machines. In order to improve the efficiency, quality and reliability of drilling processing and maximize economic benefits, CNC drilling machines need to be improved. The comprehensive benefits of drilling are controlled.

In the existing technology, the comprehensive drilling benefits of CNC drilling machines are often controlled by professionals analyzing a large amount of data.

For example, the public application number is: CN104793562A, a control system and control method for a drilling machine, including: a feeding mechanism, a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, and a fifth solenoid valve. and a controller, which is electrically connected to the feeding mechanism, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve and the fifth solenoid valve respectively.

For example, the public application number is: CN106873531A, a circuit board drilling machine based on a motion control board is controlled by a general PC, an ADT850 motion control board, an AC servo motor and its corresponding servo driver and ball screw. It consists of platform, grating ruler, data acquisition card, etc. The control system software is developed using VC++6.0. Both the motion control board and the data acquisition card provide library functions used for VC underlying development, providing a shortcut for secondary development.

However, in the process of implementing the technical solutions invented in the embodiments of the present application, the inventor of the present application discovered that the above technology has at least the following technical problems:

In the existing technology, a large amount of data needs to be collected for manual analysis, which is time-consuming, labor-intensive, subjective, and has the problem of low accuracy in monitoring the comprehensive benefits of drilling.

Contents of the invention

By providing a CNC drilling machine and its control system, the embodiment of the present application solves the problem of low accuracy of drilling comprehensive benefit monitoring in the prior art and improves the accuracy of drilling comprehensive benefit monitoring.

The embodiment of the present application provides a CNC drilling machine control system, including a CNC drilling machine data acquisition center, a CNC drilling machine data processing center and a CNC drilling machine control center: wherein, the CNC drilling machine data acquisition center Used to: obtain the drilling data of the designated CNC drilling machine within the preset time period, and send the collected drilling data to the CNC drilling machine data processing center; the CNC drilling machine data processing center is used to: receive CNC drilling machine data processing center. The drilling machine data collection center sends drilling data, calculates the comprehensive drilling efficiency score of the designated CNC drilling machine based on the drilling data, and sends the calculated comprehensive drilling efficiency score to the data drilling machine control center; The CNC drilling machine control center is used to: receive the comprehensive drilling benefit score sent by the CNC drilling machine, measure the comprehensive benefit of the designated CNC drilling machine based on the comprehensive drilling benefit score, and take control measures to control the designated CNC drilling machine The comprehensive benefits are controlled.

Further, the CNC drilling machine data collection center includes a tool division module, a drilling quality data collection module, a drilling efficiency data collection module, a drilling stability data collection module and a drilling profit data collection module: the tool division Module: used to divide and number each preset tool on the cutterhead of a designated CNC drilling machine, in which the functions of each preset tool are different; the drilling quality data acquisition module: used to Collect drilling quality data of each preset tool of the designated CNC drilling machine within a preset time period. The drilling quality data of each preset tool includes drilling accuracy data, surface roughness data of the drilled workpiece and the drilled workpiece. The surface damage data; the drilling efficiency data collection module: used to collect the drilling efficiency data of each preset tool of the designated CNC drilling machine within a preset time period. The drilling efficiency data of each preset tool includes Drilling speed data, feed speed data of the drilled workpiece and single drilling time; the drilling stability data collection module: used to collect drilling of each preset tool of the designated CNC drilling machine within a preset time period Stability data, the drilling stability data of each preset tool includes drilling axial error, drilling radial error and drilling failure rate; the drilling profit data collection module: used to collect the preset time period The drilling profit data of the designated CNC drilling machine within the preset time period. The drilling cost data includes the total price data of the drilling workpiece and the drilling cost data within the preset time period. The drilling cost data includes the designated CNC drilling machine within the preset time period. Labor cost data, material cost data and maintenance cost data of the drilling machine; the drilling data includes drilling quality data, drilling efficiency data, drilling stability data and drilling profit data.

Further, the CNC drilling machine data processing center includes a reference drilling data storage module, a drilling quality data processing module, a drilling efficiency data processing module, a drilling stability data processing module and a drilling profit data processing module: The reference drilling data storage module is used to store the reference drilling quality data, reference drilling efficiency data, reference drilling stability data and reference drilling cost data of the designated CNC drilling machine; the drilling quality data processing module : Used to process the drilling accuracy data of each preset tool in the specified CNC drilling machine, the surface roughness data and surface damage data of the drilled workpiece within the preset time period collected by the drilling quality data acquisition module, and combine it with the reference The drilling quality data calculates the drilling quality score of the designated CNC drilling machine within the preset time period; the drilling efficiency data processing module is used to process the designated CNC drilling machine within the preset time period collected by the drilling efficiency data acquisition module. The drilling speed data of each preset tool in the drilling machine, the single drilling time and the feed speed data of the drilling workpiece are combined with the reference drilling efficiency data to calculate the drilling of the specified CNC drilling machine within the preset time period. Efficiency score, where drilling speed data refers to the number of drilling workpieces that can be drilled by each preset tool per minute; the drilling stability data processing module: used to process the preset time collected by the drilling stability data acquisition module The drilling axial error data, drilling radial error data and drilling failure rate of each preset tool in the designated CNC drilling machine within the period are combined with the reference drilling stability data to calculate the designated CNC drilling machine within the preset time period. The drilling stability score of the drilling machine; the drilling profit data processing module: used to process the total price data of drilling workpieces and drilling cost data within the preset time period collected by the drilling cost data collection module, and combine it with the reference drilling The hole profit data calculates the drilling profit score of the specified CNC drilling machine within the preset time period, and then calculates the corresponding comprehensive drilling benefit score.

Further, the specific calculation process of the drilling quality score is as follows: According to the i-th drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period received drilling diameter data Drilling depth data/> Drilling location data/> Combined with reference drill diameter data/> Drilling depth data Drilling location data/> Calculate the drilling accuracy score DA _h of the specified CNC drilling machine in the h-th preset time period through the drilling accuracy score formula, which is

Where e is a natural constant, h=1,2,...,H, H is the total number of preset time periods, i=1,2,...,J, J is the tool of the designated CNC drilling machine The total number of preset tools on the disk, i→k=1,2,...,i→K, i→K is the total number of drilling workpieces of the i-th preset tool, α is the drilling workpiece The correction factor of the drilling diameter data, β is the correction factor of the drilling position data of the drilling workpiece, χ is the correction factor of the drilling depth data of the drilling workpiece; and then specified according to the received hth preset time period The surface roughness data of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the CNC drilling machine after the completion of drilling. and surface damage data/> Combined with reference surface roughness data of drilled workpieces Calculate the drilling quality fraction DQ _h of the designated CNC drilling machine within the h-th preset time period through the drilling quality fraction formula, which is

where δ is the correction factor for the drilling accuracy score of the drilled workpiece, φ is the correction factor for the surface damage data of the drilled workpiece after drilling is completed, is the correction factor for the surface roughness data of the drilled workpiece after drilling is completed; the drilling accuracy data includes drilling diameter data, drilling depth data and drilling position data; the drilling position data is determined by the specified CNC drill When each tool on the cutterhead of the drilling machine drills each drilling workpiece, it is determined by the coordinates of the combination of the X-direction moving device, the Y-direction moving device and the Z-direction moving device on the designated CNC drilling machine; the X-direction moving device can move along To move in the X-axis direction, the Y-axis moving device can move in the Y-axis direction, and the Z-axis moving device can move in the Z-axis direction.

Further, the specific calculation process of the drilling efficiency score is as follows: According to the received i-th → k-th drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period feed speed data Obtain the first feed speed data Max, FR _h,i and the second feed speed data Min of each drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period. ,FR _h,i , where Max,FR _h,i is Min,FR _h,i is/> Combined with the received reference feed rate data of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period/> Calculate the drilling feed speed index FD _h of the designated CNC drilling machine within the h-th preset time period through the drilling feed speed index formula. The drilling feed speed index formula is:

Combined with the received drilling speed data DV h,i of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period _, the reference drilling speed data ΔDV _h,i and the h-th The drilling time index TD _h of the designated CNC drilling machine within the preset time period is calculated through the drilling efficiency score formula. The drilling efficiency score DE _h of the designated CNC drilling machine within the h-th preset time period is calculated. The efficiency score formula is

Among them, λ is the correction factor of the drilling speed data of each preset tool, μ is the safety factor of the drilling feed speed index of the specified CNC drilling machine, ν is the safety factor of the drilling time index of the specified CNC drilling machine, And μ+ν=1.

Further, the specific calculation process of the drilling time index is as follows: according to the i-th → k drilling workpiece of the i-th preset tool on the cutterhead of the specified CNC drilling machine within the h-th preset time period. single drilling time Obtain the first single drilling time Max, DT _h,i and the second single drilling time of each drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine in the h-th preset time period. Time Min,DT _h,i , where Max,DT _h,i is Min,DT _h,i is/> Combined with the reference single drilling time of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period/> Calculate the drilling time index TD _h of the specified CNC drilling machine in the h-th preset time period through the drilling time index formula. The drilling time index formula is

Further, the specific calculation process of the drilling stability score is as follows: according to the i-th → k-th drilling of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period. Drilling axial error data of the workpiece and drilling radial error data/> Obtain the first drilling axial error data Max, AD _h,i and the first drilling radial error data of the i-th preset tool on the cutterhead of the specified CNC drilling machine within the h-th preset time period. Error data Max,RD _h,i , where Max,AD _h,i is/> Max,RD _h,i is Combined with the received failure rate F _{h,i of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period, and} the single drilling number of each drilling workpiece on the preset tool The first time Max,DT _h,i and the second time Min,DT _h,i of a single drilling, calculate the drilling stability score of the specified CNC drilling machine in the h-th preset time period through the drilling stability score formula DS _h , the drilling stability fraction formula is

Among them, λ is the correction factor of the first drilling axial error data of the designated CNC drilling machine, and ν is the correction factor of the first drilling radial error data of the designated CNC drilling machine.

Further, the specific calculation process of the drilling profit score is as follows: based on the total price P _h of the drilling workpiece of the designated CNC drilling machine within the h-th preset time period received, combined with the total price of the drilling workpiece within the h-th preset time period The drilling cost data DC _h of the specified CNC drilling machine and the reference drilling cost data ΔDC _h are used to calculate the drilling profit fraction DP _h of the specified CNC drilling machine in the h-th preset time period through the drilling profit fraction formula, so The drilling profit fraction formula is Among them/> is the correction factor for the total drilling price.

Further, the specific calculation process of the comprehensive drilling efficiency score is as follows: combined with the drilling quality score DQ _h , drilling efficiency score DE _h and drilling stability score of the designated CNC drilling machine within the h-th preset time period DS _h and drilling profit score DP _h , the comprehensive benefit score DB _h of the designated CNC drilling machine in the h-th preset time period is calculated through the drilling benefit score formula. The drilling profit score formula is

Among them θ, ρ and σ are the safety factors for specifying the drilling profit score, drilling stability score, drilling efficiency score and drilling quality score of the CNC drilling machine.

The embodiment of the present application provides a CNC drilling machine, including a base and a processing table: an X-direction moving device is provided on the base, and the X-direction moving device can move along the X-axis direction; A Y-direction moving device is provided, and the Y-direction moving device can move along the Y-axis direction; the Y-direction moving device is provided with a Z-direction moving device, and the Z-direction moving device can move along the Z-axis direction; the Z-direction moving device A spindle is installed on the X-direction moving device; a rotation driving device is provided on the outside of the X-direction moving device, the rotation driving device is installed on the base, and the processing table is installed on the rotation driving device, which is The rotary driving device controls the rotation. The processing table is provided with at least two installation stations, and clamps are installed on each of the installation stations. A tool magazine is provided on the outside of the processing table, and the tool magazine includes a driver and a tool. The driver is installed on the base and is used to drive the cutterhead to rotate. The cutterhead is provided with a number of tool accommodation stations arranged in a circular array; it also includes a controller, the control unit The device is used to control the movement of the X-direction moving device, Y-direction moving device, Z-direction moving device, spindle, tool magazine and rotary drive device.

One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

1. Use the tool division module in the CNC drilling machine data collection center to divide each preset tool of the designated CNC drilling machine, and then use other modules to obtain the drilling quality data of the designated CNC drilling machine within the preset time period. , drilling efficiency data, drilling stability data and drilling profit data, and send the collected data to the corresponding processing module of the CNC drilling machine data processing center, and then combine it with the reference drilling of the CNC drilling machine data processing center For each reference data in the hole data storage module, each corresponding processing module calculates the drilling quality score, drilling efficiency score, drilling stability score and drilling profit score of the specified CNC drilling machine, and then comprehensively calculates the specified The comprehensive drilling benefit score of the CNC drilling machine is sent to the data drilling machine control center. Finally, the comprehensive benefit situation is measured by the CNC drilling machine control center based on the received comprehensive drilling benefit score. Control measures are taken to achieve accurate monitoring of the comprehensive benefits of drilling, thereby achieving more accurate monitoring of the comprehensive benefits of drilling, effectively solving the problem of low accuracy in monitoring comprehensive benefits of drilling in the existing technology.

2. By comparing the received feed speed data of each drilling workpiece of each preset tool of the designated CNC drilling machine within each preset time period, the corresponding first feed speed and second feed speed are obtained, and then combined The corresponding reference feed speed data is used to obtain the drilling feed speed index of the designated CNC drilling machine within the preset time period, and then by comparing the received values of each preset tool of the designated CNC drilling machine within each preset time period. The single drilling time of the drilled workpiece is obtained, and the corresponding first single drilling time and the second single drilling time are obtained, and then combined with the corresponding reference single drilling time to calculate the designated CNC drilling in each preset time period. The drilling time index of the machine is finally combined with the drilling speed data and the reference drilling speed data to calculate the drilling efficiency score of the designated CNC drilling machine within each preset time period, thereby achieving an accurate assessment of drilling efficiency and thus achieving Improved accuracy of drilling efficiency assessment.

3. By comparing the received drilling axial error data of each drilling workpiece of each preset tool of the designated CNC drilling machine within each preset time period, the corresponding first drilling axial error data is obtained, and then compared The received drilling radial error data of each drilling workpiece of each preset tool is used to obtain the corresponding first drilling radial error data, and finally combined with the received failure rate of each preset tool within the corresponding preset time period and the received The first single drilling time and the second single drilling time of each drilling workpiece on the preset tool are preset, and the drilling stability score of the designated CNC drilling machine within each preset time period is calculated, thus achieving a comprehensive Evaluate the drilling stability of CNC drilling machines, thereby achieving a more accurate assessment of drilling stability.

Description of the drawings

Figure 1 is a schematic structural diagram of a CNC drilling machine control system provided by an embodiment of the present application;

Figure 2 is a schematic structural diagram of a CNC drilling machine data acquisition center in a CNC drilling machine control system provided by an embodiment of the present application;

Figure 3 is a schematic structural diagram of a CNC drilling machine data processing center in a CNC drilling machine control system provided by an embodiment of the present application;

Figure 4 is a schematic structural diagram of a CNC drilling machine provided by an embodiment of the present application;

Figure 5 is a schematic structural diagram of the clamp in the CNC drilling machine provided by the embodiment of the present application;

Figure 6 is an enlarged schematic diagram of position A in Figure 5 provided by the embodiment of the present application;

Figure 7 is a partial schematic diagram of a cross-sectional view of the processing table in the CNC drilling machine of the present application.

Markings in the picture:

1. Base; 2. Processing table; 3. X-direction moving device; 4. Y-direction moving device; 5. Z-direction moving device; 6. Spindle; 7. Rotary drive device; 8. Fixture; 9. Tool magazine;

21. Fixed groove; 22. Chip removal channel; 23. Air vent; 24. Connecting block; 241. Air cavity; 242. Air inlet; 243. Air outlet;

81. Installation box; 811. Guide column; 812. Sensing parts; 82. Pressure parts; 821. Cylinder; 822. Connecting rod; 823. Pressure rod; 83. Support plate; 831. Code plate; 84. Electric push rod ;

91. Driver; 92. Cutterhead.

Detailed ways

By providing a CNC drilling machine and its control system, the embodiment of the present application solves the problem of low accuracy in drilling comprehensive benefit monitoring in the prior art. The designated drilling is divided into the tool division module in the data acquisition center of the CNC drilling machine. Each preset tool of the machine is divided, and then the drilling quality data acquisition module, drilling efficiency data acquisition module, drilling stability data acquisition module and drilling profit data acquisition module respectively obtain the designated CNC drills within the preset time period. The drilling quality data, drilling efficiency data, drilling stability data and drilling profit data of the drilling machine are sent to the CNC drilling machine data processing center, and then the drilling quality data are stored in the CNC drilling machine data processing center. The processing module, drilling efficiency data processing module, drilling stability data processing module and drilling profit data processing module respectively calculate the drilling quality score, drilling efficiency score and drilling stability of the designated CNC drilling machine based on the drilling data. The drilling profit data processing module then comprehensively calculates the comprehensive drilling profit score of the specified CNC drilling machine and sends the calculated results to the data drilling machine control center, which is finally controlled by the CNC drilling machine. The center measures the comprehensive benefits based on the calculation results and takes control measures, thereby improving the accuracy of monitoring the comprehensive benefits of drilling.

The technical solution in the embodiment of this application is to solve the above-mentioned problem of low accuracy in monitoring comprehensive benefits of drilling. The general idea is as follows:

Obtain the drilling data of the designated CNC drilling machine within the preset time period through each module in the CNC drilling machine data acquisition center, and send the collected drilling data to the CNC drilling machine data processing center, and then the CNC drilling machine The data processing center receives the drilling data sent by the CNC drilling machine data acquisition center, and calculates the drilling quality score, drilling efficiency score, drilling stability score and drilling profit score of the designated CNC drilling machine based on the drilling data. Then the comprehensive drilling efficiency score of the designated CNC drilling machine is comprehensively calculated, and the calculated comprehensive drilling efficiency score is sent to the data drilling machine control center, and then the CNC drilling machine control center receives the comprehensive drilling efficiency score sent by the CNC drilling machine. Borehole benefit score, and finally control measures are taken based on the comprehensive benefit measured by the comprehensive borehole benefit score, which achieves the effect of improving the accuracy of borehole comprehensive benefit monitoring.

In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation modes.

As shown in Figure 1, it is a structural schematic diagram of a CNC drilling machine control system provided by an embodiment of the present application. The CNC drilling machine control system provided by an embodiment of the present application includes a CNC drilling machine data acquisition center, a CNC drilling machine data acquisition center, and a CNC drilling machine control system. Drilling machine data processing center and CNC drilling machine control center: The CNC drilling machine data acquisition center is used to: obtain drilling data of the designated CNC drilling machine within a preset time period, and send the collected drilling data to CNC drilling machine data processing center; CNC drilling machine data processing center is used to: receive drilling data sent by the CNC drilling machine data collection center, and calculate the comprehensive drilling efficiency score of the designated CNC drilling machine based on the drilling data, And send the calculated comprehensive drilling benefit score to the data drilling machine control center; the CNC drilling machine control center is used to: receive the comprehensive drilling benefit score sent by the CNC drilling machine, and measure the designated CNC drilling machine according to the comprehensive drilling benefit score The comprehensive benefit of the drilling machine, and take control measures to control the comprehensive benefit of the designated CNC drilling machine.

In this embodiment, the comprehensive benefit of the CNC drilling machine intuitively reflects the drilling quality, drilling efficiency, drilling stability and drilling profit. The current comprehensive drilling benefit score is used to realize the evaluation of the designated CNC drilling machine. More effective control of comprehensive benefits, maximum utilization of resources, and more accurate monitoring of comprehensive benefits of drilling.

Further, as shown in Figure 2, it is a schematic structural diagram of a CNC drilling machine data collection center in a CNC drilling machine control system provided by an embodiment of the present application. The CNC drilling machine data collection center includes a tool dividing module, a drilling machine Quality data collection module, drilling efficiency data collection module, drilling stability data collection module and drilling profit data collection module: Tool division module: used to divide and classify the preset tools on the cutterhead of the specified CNC drilling machine. Each preset tool is numbered, and the functions of each preset tool are different; the drilling quality data collection module: used to collect the drilling quality data of each preset tool of the designated CNC drilling machine within the preset time period. The drilling quality data of the tool includes drilling accuracy data, surface roughness data of the drilling workpiece and surface damage data of the drilling workpiece; drilling efficiency data acquisition module: used to collect specified CNC drilling within a preset time period The drilling efficiency data of each preset tool on the machine includes drilling speed data, feed speed data of the drilled workpiece and single drilling time; drilling stability data acquisition module: The drilling stability data of each preset tool of the specified CNC drilling machine is collected within the preset time period. The drilling stability data of each preset tool includes drilling axial error, drilling radial error and drilling failure rate. ;Drilling profit data acquisition module: used to collect drilling profit data of designated CNC drilling machines within a preset time period. Drilling cost data includes total price data of drilling workpieces and drilling cost data in the preset time period, where Drilling profit data includes labor cost data, material cost data and maintenance cost data of the designated CNC drilling machine within a preset time period; drilling data includes drilling quality data, drilling efficiency data, drilling stability data and drilling data. Profit data.

In this embodiment, the cutter head is provided with tool storage stations arranged in a circular array to store preset tools; surface roughness refers to the small spacing and the unevenness of tiny peaks and valleys on the machined surface. The distance between two wave crests or two wave troughs is very small, which is a micro-geometric shape error. The smaller the surface roughness, the smoother the surface; the surface damage refers to the degree of damage to the workpiece surface caused during the drilling process, including scratches, Cutting, cracking or surface burrs, etc., these damages may lead to unevenness, cracks, weaknesses or reduced fatigue life of the drilled surface; achieving more accurate acquisition of drilling data for CNC drilling machines.

Further, as shown in Figure 3, it is a schematic structural diagram of a CNC drilling machine data processing center in a CNC drilling machine control system provided by an embodiment of the present application. The CNC drilling machine data processing center includes a reference drilling data storage module. , drilling quality data processing module, drilling efficiency data processing module, drilling stability data processing module and drilling profit data processing module: reference drilling data storage module: used to store the reference drilling quality of the specified CNC drilling machine data, reference drilling efficiency data, reference drilling stability data and reference drilling cost data; drilling quality data processing module: used to process the specified CNC drilling machine within the preset time period collected by the drilling quality data acquisition module The drilling accuracy data of each preset tool, the surface roughness data and surface damage data of the drilled workpiece are combined with the reference drilling quality data to calculate the drilling quality score of the designated CNC drilling machine within the preset time period; Hole efficiency data processing module: used to process the drilling speed data, single drilling time and feed of the drilled workpiece of each preset tool in the specified CNC drilling machine within the preset time period collected by the drilling efficiency data acquisition module The speed data is combined with the reference drilling efficiency data to calculate the drilling efficiency score of the specified CNC drilling machine within the preset time period, where the drilling speed data refers to the number of drilling workpieces that can be drilled by each preset tool per minute; Drilling stability data processing module: used to process the drilling axial error data, drilling radial error data and drilling stability data of each preset tool in the specified CNC drilling machine within the preset time period collected by the drilling stability data acquisition module. Drilling failure rate, and combined with the reference drilling stability data to calculate the drilling stability score of the specified CNC drilling machine within the preset time period; drilling profit data processing module: used to process the drilling cost data collection module. The total price data of drilling workpieces and drilling cost data within the preset time period are combined with the reference drilling cost data to calculate the drilling profit score of the designated CNC drilling machine within the preset time period, and then calculate the corresponding comprehensive drilling benefits. Fraction.

In this embodiment, the feed speed data of the drilled workpiece reflects the speed at which the drill bit moves at each feed of the specified CNC drilling machine. A higher feed speed can speed up the drilling process and improve drilling efficiency; Drilling axial error refers to the deviation between the drilling axis and the set axis, which can evaluate the axial stability of the drilling machine; drilling radial error refers to the deviation between the drilling aperture and the target aperture, which can Evaluate the radial stability of the drilling machine; the comprehensive drilling efficiency score is determined by the drilling quality score, drilling efficiency score, drilling stability score and drilling profit score; achieving a more intuitive assessment of the comprehensive drilling efficiency situation .

Further, the specific calculation process of the drilling quality score is as follows: According to the received drilling results of the i-th → k-th drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period Hole diameter data Drilling depth data/> Drilling location data/> Combined with reference drill diameter data/> Drilling depth data/> Drilling location data/> Calculate the drilling accuracy score DA _h of the designated CNC drilling machine in the h-th preset time period through the drilling accuracy score formula. The drilling accuracy score formula is

Where e is a natural constant, h=1,2,...,H, H is the total number of preset time periods, i=1,2,...,J, J is the tool of the designated CNC drilling machine The total number of preset tools on the disk, i→k=1,2,...,i→K, i→K is the total number of drilling workpieces of the i-th preset tool, α is the drilling workpiece The correction factor of the drilling diameter data, β is the correction factor of the drilling position data of the drilling workpiece, χ is the correction factor of the drilling depth data of the drilling workpiece; and then specified according to the received hth preset time period The surface roughness data of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the CNC drilling machine after the completion of drilling. and surface damage data/> Combined with reference surface roughness data of drilled workpieces Calculate the drilling quality fraction DQ _h of the specified CNC drilling machine in the h-th preset time period through the drilling quality fraction formula. The drilling quality fraction formula is

where δ is the correction factor for the drilling accuracy score of the drilled workpiece, φ is the correction factor for the surface damage data of the drilled workpiece after drilling is completed, It is the correction factor for the surface roughness data of the drilled workpiece after drilling is completed; the drilling accuracy data includes drilling diameter data, drilling depth data and drilling position data; the drilling position data is determined by the tool of the designated CNC drilling machine. When each tool on the plate is drilling for each drilling workpiece, the coordinates of the X-direction moving device, Y-direction moving device and Z-direction moving device on the designated CNC drilling machine are determined; the X-direction moving device can move along the X-axis direction, Y The moving device can move along the Y-axis direction, and the Z-moving device can move along the Z-axis direction.

In this embodiment, the drilling diameter refers to the size of the drilling hole, which is extremely important when it needs to match, fit or assemble with other parts. If it deviates from the design requirements, it may cause assembly problems, sealing sexual or functional problems; drilling depth refers to the length or depth of the drilling. If the drilling depth is too shallow or too deep, it may affect the assembly, connection or function of the parts; for the assembly of porous parts or the positioning of key components , the accuracy of the drilling position is crucial; drilling accuracy is one of the most basic and critical metrics, which determines whether the drilling meets the design requirements and directly affects the assembly and functionality of the product; lower surface roughness The degree of surface damage can provide better sealing, lubrication and wear resistance, affecting the friction, durability and appearance quality of the parts; the lower degree of surface damage can reduce the brittleness and damage of the workpiece and maintain the integrity and strength of the drilled hole. ;The maximum value of the drilling accuracy score is 1, and the maximum value of the drilling quality score is also 1; achieving a more accurate measurement of the drilling quality of the CNC drilling machine.

Further, the specific calculation process of the drilling efficiency score is as follows: according to the received progress of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the specified CNC drilling machine within the h-th preset time period. Give speed data Obtain the first feed speed data Max, FR _h,i and the second feed speed data Min of each drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period. ,FR _h,i , where Max,FR _h,i is Min,FR _h,i is/> Combined with the received reference feed rate data of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period/> Calculate the drilling feed speed index FD _h of the specified CNC drilling machine in the h-th preset time period through the drilling feed speed index formula. The drilling feed speed index formula is:

Combined with the received drilling speed data DV h,i of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period _, the reference drilling speed data ΔDV _h,i and the h-th The drilling time index TD _h of the designated CNC drilling machine within the preset time period is calculated through the drilling efficiency score formula. The drilling efficiency score DE _h of the designated CNC drilling machine within the h-th preset time period is calculated. The drilling efficiency score is The formula is

Among them, λ is the correction factor of the drilling speed data of each preset tool, μ is the safety factor of the drilling feed speed index of the specified CNC drilling machine, ν is the safety factor of the drilling time index of the specified CNC drilling machine, And μ+ν=1.

In this embodiment, when the first feed speed and the second feed speed of each drilling workpiece are equal and both are equal to the reference feed speed, the corresponding drilling feed speed index reaches the maximum, which is 1; A high feed speed can speed up the drilling process and improve drilling efficiency; a higher drilling speed means that the machine can complete the drilling task faster and improve production efficiency; when the actual drilling speed data is the same as the reference drilling speed data , and when the drilling feed speed index and drilling time index are both 1, the drilling efficiency reaches the optimum; a more accurate evaluation of the drilling efficiency of the CNC drilling machine is achieved.

Further, the specific calculation process of the drilling time index is as follows: According to the received single data of the i → k drilling workpiece of the i th preset tool on the cutterhead of the specified CNC drilling machine within the h th preset time period. drilling time Obtain the first single drilling time Max, DT _h,i and the second single drilling time of each drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine in the h-th preset time period. Time Min,DT _h,i , where Max,DT _h,i is Min,DT _h,i is/> Combined with the reference single drilling time of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period/> Calculate the drilling time index TD _h of the designated CNC drilling machine in the h-th preset time period through the drilling time index formula. The drilling time index formula is

In this embodiment, a shorter drilling time means that the machine can complete the drilling task faster and improve drilling efficiency; similarly, when the first time of a single drilling of each drilling workpiece and the third time of a single drilling When the two times are the same and equal to the reference single drilling time, the corresponding drilling time index reaches the maximum; achieving a more efficient evaluation of the drilling efficiency of the CNC drilling machine.

Further, the specific calculation process of the drilling stability score is as follows: According to the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period, the i-th → k-th drilling workpiece is Drilling axial error data and drilling radial error data/> Obtain the first drilling axial error data Max, AD _h,i and the first drilling radial error data of the i-th preset tool on the cutterhead of the specified CNC drilling machine within the h-th preset time period. Error data Max,RD _h,i , where Max,AD _h,i is/> Max,RD _h,i is/> Combined with the received failure rate F _{h,i of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period, and} the single drilling number of each drilling workpiece on the preset tool The first time Max,DT _h,i and the second time Min,DT _h,i of a single drilling, calculate the drilling stability score of the specified CNC drilling machine in the h-th preset time period through the drilling stability score formula DS _h , the drilling stability fraction formula is

Among them, λ is the correction factor of the first drilling axial error data of the designated CNC drilling machine, and ν is the correction factor of the first drilling radial error data of the designated CNC drilling machine.

In this embodiment, when the first time for a single drilling of each drilling workpiece and the second time for a single drilling are the same, it means that the speed at which the preset tool drills holes for each drilling workpiece within the preset time period is the same. are the same; a smaller axial error means that the drilling machine can maintain a higher axial stability; a smaller radial error means that the drilling machine can maintain a higher radial stability; when the drilling workpiece The first drilling axial error data and the first drilling radial error data are both 0, and the failure rate of the preset tool within the preset time period is 0. At the same time, the first time of a single drilling and the first time of a single drilling are The second time is the same, and the corresponding drilling stability reaches the maximum value, indicating that the drilling state of the specified CNC drilling machine is very stable within the preset time period; achieving a more accurate assessment of the stability of the CNC drilling machine.

Further, the specific calculation process of the drilling profit score is as follows: based on the total price P _h of the drilling workpiece of the designated CNC drilling machine received within the h-th preset time period, and combined with the designated CNC drilling machine within the h-th preset time period. The drilling cost data DC _h of the drilling machine and the reference drilling cost data ΔDC _h are used to calculate the drilling profit fraction DP _h of the specified CNC drilling machine in the h-th preset time period through the drilling profit fraction formula. The drilling profit The fraction formula is Among them/> is the correction factor for the total drilling price.

In this embodiment, drilling profit is a key indicator to evaluate the economic benefits of the drilling process; when the actual drilling cost and the reference drilling cost are equal, the drilling profit score reaches the maximum, the maximum value is 1, and the corresponding profit reaches Maximum; when the drilling profit score is low, improvements need to be made from the aspects of cost and drilling quality, efficiency and stability of the CNC drilling machine; a more direct assessment of the profitability of the CNC drilling machine is achieved.

Further, the specific calculation process of the comprehensive drilling efficiency score is as follows: combined with the drilling quality score DQ _h , drilling efficiency score DE _h , and drilling stability score DS _h of the designated CNC drilling machine within the h-th preset time period and drilling profit score DP _h , calculate the comprehensive benefit score DB _h of the specified CNC drilling machine in the h-th preset time period through the drilling profit score formula. The drilling profit score formula is

Among them θ, ρ and σ are the safety factors for specifying the drilling profit score, drilling stability score, drilling efficiency score and drilling quality score of the CNC drilling machine.

In this embodiment, drilling quality is crucial for many applications, especially for workpieces that require high precision and high-quality surfaces. High-quality drilling can ensure the normal assembly and function of the workpiece; drilling efficiency is important for High-volume production and high-productivity applications are critical. A fast and efficient drilling process can reduce production costs, shorten production cycles, and increase output; drilling stability is essential to ensure the safety of workpieces and machines, as well as operator comfort. Importantly, a stable drilling process can reduce vibration, reduce noise, extend equipment life, and reduce operator fatigue and risk of work-related injuries; improving drilling profit scores can mean lower costs, increased productivity, increased output, and improved product quality; achieved In order to more intuitively evaluate the comprehensive drilling efficiency of CNC drilling machines.

The CNC drilling machine using the above control system provided by the embodiment of the present application includes a base 1 and a processing table 2, wherein: the base 1 is provided with an X-direction moving device 3, and the X-direction moving device 3 can move along the X-axis direction; The Y-moving device 3 is provided with a Y-moving device 4, which can move along the Y-axis direction; the Y-moving device 4 is provided with a Z-moving device 5, which can move along the Z-axis direction. ; A spindle 6 is installed on the Z-direction moving device 5; a rotational driving device 7 is provided on the outside of the X-direction moving device 3, the rotating driving device 7 is installed on the base 1, and the processing table 2 is installed on the rotating driving device 7 , its rotation is controlled by a rotary drive device 7. The processing table 2 is provided with at least two installation stations. Each installation station is equipped with a clamp 8. A tool magazine 9 is provided on the outside of the processing table 2. The tool magazine 9 includes a driver. 91 and cutterhead 92, the driver 91 is installed on the base 1, and is used to drive the cutterhead 92 to rotate. The cutterhead 92 is provided with several tool accommodation stations arranged in a circular array; it also includes a controller, and the controller is used for Control the movement of the X-direction moving device 3, Y-direction moving device 4, Z-direction moving device 5, spindle 6, tool magazine 9 and rotary drive device 7; the use process of the CNC drilling machine is: the workpiece to be processed is installed on any fixture 8 , the rotary drive device 7 drives the processing table 2 to rotate, so that the fixture 8 moves below the spindle 6, and then the X-direction moving device 3, Y-direction moving device 4 and Z-direction moving device 5 cooperate to control the spindle 6 to drive the tool at a specific position of the workpiece. Drilling and milling processing is performed on the position, and during this process, the staff places the workpiece to be processed on the fixture 8 of other installation stations. When the workpiece on any fixture 8 is processed, the rotary drive device 7 will drive the processing table 2 is rotated to move another workpiece below the spindle 6 for processing; using the design of this application, drilling processing and workpiece removal can be carried out simultaneously, and then the spindle 6 can process each workpiece without interruption, achieving A substantial improvement in production efficiency.

In this embodiment, a tool magazine 9 is provided on the outside of the processing table 2. The tool magazine 9 includes a driver 91 and a cutterhead 92. The driver 91 is installed on the base 1 and is used to drive the cutterhead 92 to rotate. The cutterhead 92 is provided with a tool magazine 9. There are several tool holding stations arranged in a circular array. Specifically, the tool storage station is used to place different tools. According to the tool changing requirements, the driver 91 will drive the cutterhead 92 to rotate, so that the corresponding tool moves to the tool retrieval position, so that the spindle 6 can carry the tool. automatic replacement.

A partition is provided between two adjacent installation stations, and the partition is fixedly connected to the processing table 2. This design prevents waste chips generated during drilling and milling from splashing onto workers.

The clamp 8 includes an installation box 81 and a number of holding parts 82 provided on the installation box 81; the installation box 81 is installed on the processing table 2; the holding parts 82 include a cylinder 821, a connecting rod 822 and a pressure rod 823, and the cylinder 821 is installed on On the installation box 81, the end of the pressure rod 823 is hinged with the output end of the cylinder 821, one end of the connecting rod 822 is hinged with the cylinder 821, and the other end is hinged with the pressure rod 823. Specifically, after the workpiece is placed on the installation box 81, the output end of the cylinder 821 drives one end of the pressure rod 823 to lift upward, and the other end of the pressure rod 823 automatically moves downward, thereby compressing the workpiece.

The installation box 81 is provided with a support plate 83, and a rotating shaft is installed at the bottom of the support plate 83. The rotating shaft is rotationally connected to the installation box 81, and a number of pressing parts 82 are installed on the support plate 83; the installation box 81 is provided with two electric pushers. Rod 84 and two electric push rods 84 are located below the support plate 83 and located on both sides of the rotating shaft. The output ends of the electric push rods 84 are provided with rollers, and the rollers are in contact with the support plate 83 . Specifically, according to the processing requirements of the workpiece, any electric push rod 84 can be driven to push the support plate 83 upward, and the other electric push rod 84 can move downward accordingly, thereby rotating the support plate 83 to a specific angle, that is, the workpiece The tilt forms a specific angle. At this time, when the Z-moving device 5 drives the spindle 6 downward, the tool can drill and mill an oblique hole on the workpiece. Using this design, the straight hole and inclined hole drilling and milling of the workpiece can be realized at one time, effectively improving the processing efficiency.

Both ends of the support plate 83 are provided with guide grooves, and the installation box 81 is provided with guide posts 811 that match the guide grooves, and the guide posts 811 are arranged in the guide grooves. The cooperation between the guide pillar 811 and the guide groove can improve the stability of the support plate 83 when swinging.

A code wheel 831 is installed on the rotating shaft, and the installation box 81 is provided with a sensing component 812 at a position corresponding to the code wheel 831 . Through the cooperation between the code wheel 831 and the sensing member 812, it is detected whether the support plate 83 is rotated in place.

The processing table 2 is provided with a number of fixing slots 21, and the fixture 8 is provided with fixing blocks that match the fixing slots 21, and the fixing blocks are installed in the fixing slots 21; one side of the processing table 2 is provided with the fixing slots 21 There are corresponding number of chip discharge channels 22. One side of each fixed groove 21 is provided with a corresponding chip discharge channel 22. One side of the chip discharge channel 22 is provided with a number of diagonally opened ventilation holes 23. Preferably, , the angle between the axis of the air vent 23 and the axis of the chip removal channel 22 is 45°-60°, and the air vent 23 at the side end of each chip removal channel 22 is connected to the corresponding fixed groove 21 Pass; the side end of the processing table 2 is provided with a connecting block 24, and an air cavity 241 is provided in the middle of the connecting block 24. One side of the connecting block 24 is provided with an air inlet 242 connected to the air cavity 241, and the other side is provided with an air inlet 242. There are a plurality of air outlets 243 connected with the air chamber 241, and the positions of each air outlet 243 correspond to the positions of each chip removal channel 22. When the workpiece is processed, more waste chips will fall into the fixed groove 21. After the compressed air is introduced through the air inlet 242, the compressed air will flow into each chip removal channel 22 and be discharged through each air vent. 23 is discharged to remove the waste chips in the fixed groove 21. This design makes the chip removal operation simple and efficient.

The above-mentioned technical solutions in the embodiments of the present application have at least the following technical effects or advantages: Compared with the control system and control method of a drilling machine disclosed in the publication number: CN104793562A, the embodiments of the present application have received Specify the feed speed data of each drilling workpiece of each preset tool of the CNC drilling machine within the preset time period, obtain the corresponding first feed speed and second feed speed, and then combine it with the corresponding reference feed speed data Obtain the drilling feed speed index of the designated CNC drilling machine within the preset time period, and then compare the received single drilling results of each drilling workpiece of each preset tool of the designated CNC drilling machine within each preset time period. hole time, get the corresponding first single drilling time and second single drilling time, and then combine it with the corresponding reference single drilling time to calculate the drilling time index of the designated CNC drilling machine in each preset time period. Finally, the drilling speed data and the reference drilling speed data are combined to calculate the drilling efficiency score of the designated CNC drilling machine within each preset time period, thereby achieving an accurate assessment of drilling efficiency, and thereby achieving an accurate assessment of drilling efficiency. Improvement; Compared with a circuit board drilling machine control based on the motion control board length published in the publication number: CN106873531A, the embodiment of the present application compares the presets of the designated CNC drilling machine within each preset time period received. The drilling axial error data of each drilling workpiece of the tool is then obtained, and then the corresponding first drilling axial error data is obtained, and then the received drilling radial error data of each drilling workpiece of each preset tool is compared to obtain the corresponding The first drilling radial error data is finally combined with the received failure rate of each preset tool within the corresponding preset time period and the first single drilling time and second single drilling time of each drilling workpiece on each preset tool. Drilling time, calculates the drilling stability score of the specified CNC drilling machine within each preset time period, thereby achieving a comprehensive evaluation of the drilling stability of the CNC drilling machine, thereby achieving a more accurate evaluation of drilling stability Evaluate.

Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The invention is described with reference to flowchart illustrations and/or block diagrams of systems, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and combinations of processes and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the instructions executed by the processor of the computer or other programmable data processing device produce a use A device for realizing the functions specified in one process or multiple processes of the flowchart and/or one block or multiple blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction means, the instructions The device implements the functions specified in a process or processes of the flowchart and/or a block or blocks of the block diagram.

These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device. Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.

Although the preferred embodiments of the present invention have been described, those skilled in the art will be able to make additional changes and modifications to these embodiments once the basic inventive concepts are apparent. Therefore, it is intended that the appended claims be construed to include the preferred embodiments and all changes and modifications that fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the invention. In this way, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims (10)

1. A CNC drilling machine control system, characterized in that it includes a CNC drilling machine data acquisition center, a CNC drilling machine data processing center and a CNC drilling machine control center: Wherein, the CNC drilling machine data collection center is used to: obtain the drilling data of the designated CNC drilling machine within a preset time period, and send the collected drilling data to the CNC drilling machine data processing center; The CNC drilling machine data processing center is used to: receive drilling data sent by the CNC drilling machine data acquisition center, calculate the comprehensive drilling efficiency score of the designated CNC drilling machine based on the drilling data, and use the calculated comprehensive drilling efficiency score to The hole efficiency score is sent to the data drilling machine control center; The CNC drilling machine control center is used to: receive the comprehensive drilling benefit score sent by the CNC drilling machine, measure the comprehensive benefit of the designated CNC drilling machine according to the comprehensive drilling benefit score, and take control measures to control the designated CNC drilling machine. The comprehensive benefit of the hole machine is controlled. 2. A CNC drilling machine control system as claimed in claim 1, characterized in that the CNC drilling machine data collection center includes a tool dividing module, a drilling quality data collection module, a drilling efficiency data collection module, Hole stability data collection module and drilling profit data collection module: The tool division module is used to divide each preset tool on the cutterhead of the designated CNC drilling machine and number each preset tool, where the functions of each preset tool are different; The drilling quality data collection module is used to collect drilling quality data of each preset tool of the specified CNC drilling machine within a preset time period. The drilling quality data of each preset tool includes drilling accuracy data, drilling accuracy data, and drilling quality data. Surface roughness data of hole workpieces and surface damage data of drilled workpieces; The drilling efficiency data collection module is used to collect drilling efficiency data of each preset tool of the designated CNC drilling machine within a preset time period. The drilling efficiency data of each preset tool includes drilling speed data, drilling speed data, and drilling efficiency data. Feed speed data and single drilling time of the hole workpiece; The drilling stability data collection module is used to collect drilling stability data of each preset tool of the designated CNC drilling machine within a preset time period. The drilling stability data of each preset tool includes the drilling axis. directional error, drilling radial error and drilling failure rate; The drilling profit data collection module is used to collect the drilling profit data of the specified CNC drilling machine within a preset time period. The drilling profit data includes the total price data of the drilling workpiece and the drilling cost during the preset time period. Data, wherein drilling cost data includes labor cost data, material cost data and maintenance cost data of the designated CNC drilling machine within a preset time period; The drilling data includes drilling quality data, drilling efficiency data, drilling stability data and drilling profit data. 3. A CNC drilling machine control system as claimed in claim 2, characterized in that the CNC drilling machine data processing center includes a reference drilling data storage module, a drilling quality data processing module, and a drilling efficiency data processing module. Module, drilling stability data processing module and drilling profit data processing module: The reference drilling data storage module is used to store reference drilling quality data, reference drilling efficiency data, reference drilling stability data and reference drilling cost data of the specified CNC drilling machine; The drilling quality data processing module is used to process the drilling accuracy data of each preset tool in the specified CNC drilling machine within the preset time period collected by the drilling quality data collection module, the surface roughness data of the drilled workpiece and The surface damage data is combined with the reference drilling quality data to calculate the drilling quality score of the specified CNC drilling machine within the preset time period; The drilling efficiency data processing module is used to process the drilling speed data, single drilling time and drilling workpiece of each preset tool in the specified CNC drilling machine within the preset time period collected by the drilling efficiency data acquisition module. The feed speed data is combined with the reference drilling efficiency data to calculate the drilling efficiency score of the specified CNC drilling machine within the preset time period, where the drilling speed data refers to the drilling holes that each preset tool can complete per minute. Number of workpieces; The drilling stability data processing module is used to process the drilling axial error data and drilling radial error of each preset tool in the specified CNC drilling machine within the preset time period collected by the drilling stability data acquisition module. data and drilling failure rate, and combined with the reference drilling stability data to calculate the drilling stability score of the specified CNC drilling machine within the preset time period; The drilling profit data processing module is used to process the total price data of drilling workpieces and drilling cost data within the preset time period collected by the drilling cost data collection module, and calculate the drilling cost data within the preset time period based on the reference drilling cost data. The drilling profit score of the designated CNC drilling machine is then calculated as the corresponding comprehensive drilling benefit score. 4. A CNC drilling machine control system as claimed in claim 3, characterized in that the specific calculation process of the drilling quality fraction is as follows: According to the received drilling diameter data of the i→k-th drilling workpiece of the i-th preset tool on the cutterhead of the specified CNC drilling machine within the h-th preset time period Drilling depth data/> Drilling location data/> Combined with reference drill diameter data/> Drilling depth data/> Drilling location data/> Calculate the drilling accuracy score DA _h of the specified CNC drilling machine in the h-th preset time period through the drilling accuracy score formula, which is Where e is a natural constant, h=1,2,...,H, H is the total number of preset time periods, i=1,2,...,J, J is the tool of the designated CNC drilling machine The total number of preset tools on the disk, i→k=1,2,...,i→K, i→K is the total number of drilling workpieces of the i-th preset tool, α is the drilling workpiece The correction factor of the drilling diameter data, β is the correction factor of the drilling position data of the drilling workpiece, χ is the correction factor of the drilling depth data of the drilling workpiece; Then based on the received h-th preset time period, the surface roughness data of the i-th preset tool on the i-th preset tool on the cutterhead of the CNC drilling machine after the drilling of the i-th drilled workpiece is completed. and surface damage data/> Combined with reference surface roughness data of drilled workpieces/> Calculate the drilling quality fraction DQ _h of the designated CNC drilling machine within the h-th preset time period through the drilling quality fraction formula, which is /> where δ is the correction factor for the drilling accuracy score of the drilled workpiece, φ is the correction factor for the surface damage data of the drilled workpiece after drilling is completed, It is the correction factor for the surface roughness data of the drilled workpiece after drilling is completed; The drilling accuracy data includes drilling diameter data, drilling depth data and drilling position data; The drilling position data is a combination of the X-direction moving device, the Y-direction moving device and the Z-direction moving device on the designated CNC drilling machine when each tool on the cutterhead of the designated CNC drilling machine drills each drilling workpiece. Coordinate determination; The X-direction moving device can move along the X-axis direction, the Y-direction moving device can move along the Y-axis direction, and the Z-direction moving device can move along the Z-axis direction. 5. A CNC drilling machine control system as claimed in claim 4, characterized in that the specific calculation process of the drilling efficiency score is as follows: According to the received feed speed data of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the specified CNC drilling machine within the h-th preset time period Obtain the first feed speed data Max, FR _h,i and the second feed speed data Min of each drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period. ,FR _h,i , where Max,FR _h,i is/> Min,FR _h,i is Combined with the received reference feed rate data of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period/> Calculate the drilling feed speed index FD _h of the designated CNC drilling machine within the h-th preset time period through the drilling feed speed index formula. The drilling feed speed index formula is: Combined with the received drilling speed data DV h,i of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period _, the reference drilling speed data ΔDV _h,i and the h-th The drilling time index TD _h of the designated CNC drilling machine within the preset time period is calculated through the drilling efficiency score formula. The drilling efficiency score DE _h of the designated CNC drilling machine within the h-th preset time period is calculated. The efficiency score formula is Among them, λ is the correction factor of the drilling speed data of each preset tool, μ is the safety factor of the drilling feed speed index of the specified CNC drilling machine, ν is the safety factor of the drilling time index of the specified CNC drilling machine, And μ+ν=1. 6. A CNC drilling machine control system as claimed in claim 5, characterized in that the specific calculation process of the drilling time index is as follows: According to the single drilling time of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the specified CNC drilling machine within the h-th preset time period Obtain the first single drilling time Max, DT _h,i and the second single drilling time of each drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine in the h-th preset time period. Time Min,DT _h,i , where Max,DT _h,i is/> Min,DT _h,i is Combined with the reference single drilling time of the i→k drilling workpiece of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period/> Calculate the drilling time index TD _h of the specified CNC drilling machine in the h-th preset time period through the drilling time index formula. The drilling time index formula is/> 7. A CNC drilling machine control system as claimed in claim 6, characterized in that the specific calculation process of the drilling stability score is as follows: According to the received drilling axial error data of the i→k-th drilling workpiece of the i-th preset tool on the cutterhead of the specified CNC drilling machine within the h-th preset time period and drilling radial error data/> Obtain the first drilling axial error data Max, AD _h,i and the first drilling radial error data of the i-th preset tool on the cutterhead of the specified CNC drilling machine within the h-th preset time period. Error data Max,RD _h,i , where Max,AD _h,i is/> Max,RD _h,i is/> Combined with the received failure rate F _{h,i of the i-th preset tool on the cutterhead of the designated CNC drilling machine within the h-th preset time period, and} the single drilling number of each drilling workpiece on the preset tool The first time Max,DT _h,i and the second time Min,DT _h,i of a single drilling, calculate the drilling stability score of the specified CNC drilling machine in the h-th preset time period through the drilling stability score formula DS _h , the drilling stability fraction formula is Among them, λ is the correction factor of the first drilling axial error data of the designated CNC drilling machine, and ν is the correction factor of the first drilling radial error data of the designated CNC drilling machine. 8. A CNC drilling machine control system as claimed in claim 7, characterized in that the specific calculation process of the drilling profit score is as follows: According to the received total price P _h of the drilling workpiece of the designated CNC drilling machine within the h-th preset time period, combined with the drilling cost data DC _h of the designated CNC drilling machine within the h-th preset time period and the reference drilling The hole cost data ΔDC _h is used to calculate the drilling profit fraction DP _h of the specified CNC drilling machine in the h-th preset time period through the drilling profit fraction formula. The drilling profit fraction formula is Among them/> is the correction factor for the total drilling price. 9. A CNC drilling machine control system as claimed in claim 8, characterized in that the specific calculation process of the comprehensive drilling benefit score is as follows: Combining the drilling quality score DQ _h , drilling efficiency score DE _h , drilling stability score DS _h and drilling profit score DP _h of the designated CNC drilling machine in the h-th preset time period, the drilling efficiency score formula is used Calculate the comprehensive benefit score DB _h of the designated CNC drilling machine within the h-th preset time period. The drilling benefit score formula is Among them θ, ρ and σ are the safety factors for specifying the drilling profit score, drilling stability score, drilling efficiency score and drilling quality score of the CNC drilling machine. 10. A CNC drilling machine using a control system as claimed in any one of claims 1 to 9, characterized in that it includes a base and a processing table: The base is provided with an X-direction moving device, and the X-direction moving device can move along the X-axis direction; the X-direction moving device is provided with a Y-direction moving device, and the Y-direction moving device can move along the Y-axis direction. ; The Y-direction moving device is provided with a Z-direction moving device, and the Z-direction moving device can move along the Z-axis direction; A spindle is installed on the Z-direction moving device; a rotational driving device is provided on the outside of the X-direction moving device, the rotational driving device is installed on the base, and the processing table is installed on the rotational driving device. Its rotation is controlled by the rotary drive device. The processing table is provided with at least two installation stations, and clamps are installed on each of the installation stations; A tool magazine is provided on the outside of the processing table. The tool magazine includes a driver and a cutterhead. The driver is installed on the base and is used to drive the cutterhead to rotate. The cutterhead is provided with a circumferential Several tool holding stations arranged in an array; It also includes a controller, which is used to control the movement of the X-direction moving device, the Y-direction moving device, the Z-direction moving device, the spindle, the tool magazine and the rotational driving device.