CN117428229A - Numerical control drilling machine and control system thereof - Google Patents
Numerical control drilling machine and control system thereof Download PDFInfo
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- CN117428229A CN117428229A CN202311317956.XA CN202311317956A CN117428229A CN 117428229 A CN117428229 A CN 117428229A CN 202311317956 A CN202311317956 A CN 202311317956A CN 117428229 A CN117428229 A CN 117428229A
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- 238000005553 drilling Methods 0.000 title claims abstract description 975
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
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Abstract
The invention discloses a numerical control drilling machine and a control system thereof. The numerical control drilling machine and the control system thereof comprise a numerical control drilling machine data acquisition center, a numerical control drilling machine data processing center and a numerical control drilling machine control center. According to the invention, the numerical control drilling machine data acquisition center is used for acquiring drilling data of the specified numerical control drilling machine in a preset time period and sending the drilling data to the numerical control drilling machine data processing center, then the numerical control drilling machine data processing center is used for calculating the drilling quality fraction, the drilling efficiency fraction, the drilling stability fraction and the drilling profit fraction of the specified numerical control drilling machine according to the received drilling data, then the comprehensive drilling benefit fraction of the specified numerical control drilling machine is comprehensively calculated and sent to the data drilling machine control center, finally the numerical control drilling machine control center is used for receiving and taking control measures according to the measured comprehensive benefit condition, so that the drilling comprehensive benefit monitoring accuracy is improved, and the problem of low drilling comprehensive benefit monitoring accuracy in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of numerical control, in particular to a numerical control drilling machine and a control system thereof.
Background
A drill refers to a machine and equipment that leaves a cylindrical hole or bore in a target by means of rotary cutting or rotary extrusion with a tool that is harder and sharper than the target. The desired effect is achieved by drilling the precision part. With the increase of the cost of human resources, most enterprises consider the numerical control drilling machine as a development direction. The numerical control drilling machine is mainly used for drilling, reaming, chamfering and other processing, is widely applied to the industries of automobiles, aerospace and engineering machinery, and is particularly suitable for a plurality of holes on some hardware parts to be processed. Compared with the common drilling machine, the drilling precision and the drilling speed of the numerical control drilling machine are obviously improved, and in order to improve the efficiency, quality and reliability of drilling processing and realize the maximization of economic benefits, the comprehensive drilling benefits of the numerical control drilling machine are required to be controlled.
In the prior art, the comprehensive drilling benefit of the numerical control drilling machine is often controlled by the analysis of a large amount of data by professionals.
For example, publication No.: a control system and a control method for a drilling machine disclosed in CN104793562a, comprising: the device comprises a feeding mechanism, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve and a controller, wherein the controller is electrically connected with the feeding mechanism, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve and the fifth electromagnetic valve respectively.
For example, publication No.: the control system software adopts VC++6.0 for development, and the motion control board card and the data acquisition card both provide library functions for developing a VC bottom layer, thereby providing shortcuts for secondary development.
However, in the process of implementing the technical scheme of the invention in the embodiment of the application, the inventor of the application finds that at least the following technical problems exist in the above technology:
in the prior art, a large amount of data needs to be collected for manual analysis, so that time and labor are consumed, subjectivity exists, and the problem of low comprehensive benefit monitoring accuracy of drilling exists.
Disclosure of Invention
According to the numerical control drilling machine and the control system thereof, the problem that the drilling comprehensive benefit monitoring accuracy is low in the prior art is solved, and the improvement of the drilling comprehensive benefit monitoring accuracy is achieved.
The embodiment of the application provides a numerical control drilling machine control system, which comprises a numerical control drilling machine data acquisition center, a numerical control drilling machine data processing center and a numerical control drilling machine control center: wherein, numerical control drilling machine data acquisition center is used for: acquiring drilling data of a designated numerical control drilling machine in a preset time period, and transmitting the acquired drilling data to a numerical control drilling machine data processing center; the numerical control drilling machine data processing center is used for: receiving drilling data sent by a data acquisition center of the numerical control drilling machine, calculating comprehensive drilling benefit fraction of the designated numerical control drilling machine according to the drilling data, and sending the calculated comprehensive drilling benefit fraction to a control center of the numerical control drilling machine; the numerical control drilling machine control center is used for: and receiving the comprehensive drilling benefit fraction sent by the numerical control drilling machine, measuring the comprehensive benefit of the appointed numerical control drilling machine according to the comprehensive drilling benefit fraction, and taking control measures to control the comprehensive benefit of the appointed numerical control drilling machine.
Further, the numerical control drilling machine data acquisition center comprises a cutter dividing module, a drilling quality data acquisition module, a drilling efficiency data acquisition module, a drilling stability data acquisition module and a drilling profit data acquisition module: the cutter dividing module is used for: the numerical control drilling machine is used for dividing each preset cutter on a cutter head of a specified numerical control drilling machine and numbering each preset cutter, wherein the functions of each preset cutter are different; the drilling quality data acquisition module is used for: the method comprises the steps of acquiring drilling quality data of each preset cutter of a designated numerical control drilling machine in a preset time period, wherein the drilling quality data of each preset cutter comprise drilling precision data, surface roughness data of a drilling workpiece and surface damage degree data of the drilling workpiece; the drilling efficiency data acquisition module is as follows: the method comprises the steps of acquiring drilling efficiency data of each preset cutter of a designated numerical control drilling machine in a preset time period, wherein the drilling efficiency data of each preset cutter comprise drilling speed data, feeding speed data of a drilling workpiece and single drilling time; the drilling stability data acquisition module is as follows: the method comprises the steps of acquiring drilling stability data of each preset cutter of a designated numerical control drilling machine in a preset time period, wherein the drilling stability data of each preset cutter comprise a drilling axial error, a drilling radial error and a drilling failure rate; the drilling profit data acquisition module: the drilling cost data comprises total price data of drilling workpieces and drilling cost data of the preset time period, wherein the drilling cost data comprises labor cost data, material cost data and maintenance cost data of the appointed numerical control drilling machine in the preset time period; the borehole data includes borehole quality data, borehole efficiency data, borehole stability data, and borehole profit data.
Further, the numerical control drilling machine data processing center comprises 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 borehole data storage module: the method comprises the steps of storing reference drilling quality data, reference drilling efficiency data, reference drilling stability data and reference drilling cost data of a designated numerical control drilling machine; the drilling quality data processing module is used for: the drilling quality data acquisition module is used for processing drilling precision data of each preset cutter, surface roughness data and surface damage degree data of a drilling workpiece in the designated numerical control drilling machine in a preset time period, and calculating the drilling quality fraction of the designated numerical control drilling machine in the preset time period by combining reference drilling quality data; the drilling efficiency data processing module is used for: the drilling efficiency data acquisition module is used for processing the drilling speed data, single drilling time and feeding speed data of each preset cutter in the numerical control drilling machine in a preset time period, and calculating the drilling efficiency fraction of the specified numerical control drilling machine in the preset time period by combining with reference drilling efficiency data, wherein the drilling speed data refers to the number of drilling workpieces which can be drilled by each preset cutter per minute; the drilling stability data processing module is used for: the drilling stability data acquisition module is used for processing the drilling axial error data, the drilling radial error data and the drilling failure rate of each preset cutter in the designated numerical control drilling machine in the preset time period acquired by the drilling stability data acquisition module, and calculating the drilling stability fraction of the designated numerical control drilling machine in the preset time period by combining the reference drilling stability data; the drilling profit data processing module: the drilling cost data acquisition module is used for processing the total price data of the drilling workpiece and the drilling cost data in a preset time period, and calculating the drilling profit score of the designated numerical control drilling machine in the preset time period by combining the reference drilling profit data, so as to calculate the corresponding comprehensive drilling benefit score.
Further, the concrete calculation process of the drilling mass fraction is as follows: according to the received drilling diameter data of the ith-kth drilling workpiece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time periodDrilling depth data->Drilling position data->Reference borehole diameter data->Drilling depth dataDrilling position data->Calculating the drilling precision fraction DA of the appointed numerical control drilling machine in the h preset time period through a drilling precision fraction formula h The drilling precision fraction formula is as follows
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 total number of preset tools on a cutterhead of a numerical control drilling machine, i→k=1, 2,..i→k, i→k is the total number of drilling work pieces of the i-th preset tool, α is a correction factor of drilling diameter data of the drilling work pieces, β is a correction factor of drilling position data of the drilling work pieces, χ is a correction factor of drilling depth data of the drilling work pieces; then according to the received ith-kth drilling work piece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period, after the drilling of the drilling work piece is completed, the surface roughness data of the drilling work piece is obtained And surface damage data->Combining reference surface roughness data of a drilled workpieceCalculating the drilling quality score DQ of the appointed numerical control drilling machine in the h preset time period through a drilling quality score formula h The drilling mass fraction formula is as follows
Wherein delta is a correction factor of the drilling precision fraction of the drilling workpiece, phi is a correction factor of the surface damage degree data of the drilling workpiece after the drilling is completed,a correction factor of surface roughness data of the drilling workpiece after drilling is completed; the drilling accuracy data comprises drilling diameter data, drilling depth data and drilling position data; the drilling position data is X-direction moving device and Y-direction moving device on the appointed numerical control drilling machine when each cutter on the cutterhead of the appointed numerical control drilling machine drills for each drilling workpieceCoordinate determination combined by the Z-direction moving device; 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.
Further, the specific calculation process of the drilling efficiency fraction is as follows: according to the received feeding speed data of the ith-k drilling work piece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period Obtaining first feed speed data Max, FR of each drilling workpiece of the ith preset cutter on a cutter head of the appointed numerical control drilling machine in the h preset time period h,i And second feed speed data Min, FR h,i Wherein Max, FR h,i Is thatMin,FR h,i Is->Combining the received reference feed speed data of the ith-k drilling work piece of the ith preset cutter on the cutter head of the numerical control drilling machine in the h preset time period>Calculating a drilling feed speed index FD of a designated numerical control drilling machine in a h preset time period through a drilling feed speed index formula h The drill feed speed index formula is
Combining the received drilling speed data DV of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period h,i Reference borehole velocity data ΔDV h,i Designating a drilling time index TD of the numerical control drilling machine in an h preset time period h Through the drillCalculating the drilling efficiency score DE of the appointed numerical control drilling machine in the h preset time period by using a hole efficiency score formula h The drilling efficiency fraction formula is as follows
Wherein λ is a correction factor of drilling speed data of each preset tool, μ is a safety factor specifying a drilling feed speed index of the numerical control drilling machine, ν is a safety factor specifying a drilling time index of the numerical control drilling machine, and μ+ν=1.
Further, the specific calculation process of the drilling time index is as follows: designating single drilling time of the ith-kth drilling workpiece of the ith preset cutter on the cutter head of the numerical control drilling machine according to the received h preset time periodObtaining a single drilling first time Max, DT of each drilling workpiece of the ith preset cutter on a cutter head of the appointed numerical control drilling machine in the h preset time period h,i And a single drilling second time Min, DT h,i Wherein Max, DT h,i Is thatMin,DT h,i Is->Combining the received reference single drilling time of the ith-k drilling workpiece of the ith preset cutter on the cutter head of the numerical control drilling machine in the h preset time period>Calculating a drilling time index TD of the appointed numerical control drilling machine in the h preset time period through a drilling time index formula h The drilling time index formula is that
Further, the specific calculation process of the drilling stability score is as follows: according to the received drilling axial error data of the ith-kth drilling workpiece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time periodAnd drilling radial error data>Obtaining first drilling axial error data Max, AD of a drilling workpiece of an ith preset cutter on a cutter head of a designated numerical control drilling machine in an h preset time period h,i And first borehole radial error data Max, RD h,i Wherein Max, AD h,i Is->Max,RD h,i Is thatThen combining the received failure rate F of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period h,i A single drilling of each drilling workpiece on the preset cutter for a first time Max, DT h,i And a single drilling second time Min, DT h,i Calculating a drilling stability score DS of the appointed numerical control drilling machine in the h preset time period through a drilling stability score formula h The drilling stability fraction formula is as follows
Wherein λ is a correction factor of first borehole axial error data of the specified numerical control drilling machine, and ν is a correction factor of first borehole radial error data of the specified numerical control drilling machine.
Further, the concrete calculation process of the profit score of the drill hole is as follows: designating total value P of drilling workpieces of the numerical control drilling machine according to the received h preset time period h And combining drilling cost data DC of the appointed numerical control drilling machine in the h preset time period h And referencing borehole cost data ΔDC h Calculating a drilling profit score DP of the appointed numerical control drilling machine in the h preset time period through a drilling profit score formula h The drilling profit score formula is thatWherein->And (3) a correction factor for the total price of the drilling hole.
Further, the specific calculation process of the comprehensive drilling benefit fraction is as follows: combining drilling quality fraction DQ of a designated numerical control drilling machine in the h preset time period h Drilling efficiency fraction DE h Drill stability score DS h And a borehole profit score DP h Calculating the comprehensive benefit score DB of the appointed numerical control drilling machine in the h preset time period through a drilling benefit score formula h The drilling benefit fraction formula is as follows
Wherein θ is,ρ and σ are safety factors specifying a drilling profit fraction, a drilling stability fraction, a drilling efficiency fraction, and a drilling quality fraction for a numerical control drilling machine.
The embodiment of the application provides a numerical control drilling machine, including base and processing platform: the base is provided with an X-direction moving device which 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 main shaft is arranged on the Z-direction moving device; the X-direction moving device is provided with a rotary driving device at the outer side, the rotary driving device is arranged on the base, the processing table is arranged on the rotary driving device and is controlled to rotate by the rotary driving device, the processing table is provided with at least two mounting stations, and a clamp is arranged on each mounting station; the outer side of the processing table is provided with a tool magazine, the tool magazine comprises a driver and a cutter head, the driver is arranged on the base and used for driving the cutter head to rotate, and a plurality of tool accommodating stations which are arranged in a circumferential array are arranged on the cutter head; the device also comprises a controller, wherein the controller is used for controlling the X-direction moving device, the Y-direction moving device, the Z-direction moving device, the main shaft, the tool magazine and the rotary driving device to move.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
1. dividing each preset cutter of a designated numerical control drilling machine through a cutter dividing module in the numerical control drilling machine data acquisition center, then respectively acquiring drilling quality data, drilling efficiency data, drilling stability data and drilling profit data of the designated numerical control drilling machine in a preset time period through other modules, transmitting each acquired data to a processing module corresponding to a numerical control drilling machine data processing center, then respectively calculating the drilling quality score, the drilling efficiency score, the drilling stability score and the drilling profit score of the designated numerical control drilling machine through the corresponding processing modules by combining each reference data in a reference drilling data storage module of the numerical control drilling machine data processing center, comprehensively calculating the comprehensive drilling benefit score of the designated numerical control drilling machine, transmitting the calculated comprehensive drilling benefit score to a data drilling machine control center, and finally adopting control measures through the numerical control drilling machine control center according to the comprehensive situation measured by the received comprehensive drilling benefit score, thereby realizing accurate monitoring of drilling comprehensive benefits and further realizing more accurate monitoring of drilling comprehensive benefits and effectively solving the problem of low drilling comprehensive benefit monitoring accuracy in the prior art.
2. The method comprises the steps of obtaining corresponding first feeding speed and second feeding speed by comparing received feeding speed data of each drilling workpiece of each preset cutter of the numerical control drilling machine in each preset time period, obtaining drilling feeding speed indexes of the numerical control drilling machine in the preset time period by combining corresponding reference feeding speed data, obtaining corresponding first single drilling time and second single drilling time by comparing received single drilling time of each drilling workpiece of each preset cutter of the numerical control drilling machine in each preset time period, calculating drilling time indexes of the numerical control drilling machine in each preset time period by combining corresponding reference single drilling time, and finally calculating drilling efficiency scores of the numerical control drilling machine in each preset time period by combining drilling speed data and reference drilling speed data, so that accurate assessment of drilling efficiency is achieved, and further improvement of drilling efficiency assessment accuracy is achieved.
3. The drilling stability score of the appointed numerical control drilling machine in each preset time period is calculated by comparing the received drilling axial error data of each drilling workpiece of each preset cutter of the numerical control drilling machine in each preset time period, then obtaining corresponding first drilling axial error data, then comparing the received drilling radial error data of each drilling workpiece of each preset cutter to obtain corresponding first drilling radial error data, and finally combining the received failure rate of each preset cutter in each preset time period and the first single drilling time and the second single drilling time of each drilling workpiece on each preset cutter, thereby realizing comprehensive evaluation of the drilling stability of the numerical control drilling machine and further realizing more accurate evaluation of the drilling stability.
Drawings
Fig. 1 is a schematic structural diagram of a control system of a numerical control drilling machine according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a data acquisition center of a numerical control drilling machine in a numerical control drilling machine control system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a data processing center of a numerical control drilling machine in a numerical control drilling machine control system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a numerical control drilling machine according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a fixture in a numerical control drilling machine according to an embodiment of the present application;
FIG. 6 is an enlarged schematic view of FIG. 5A provided in an embodiment of the present application;
FIG. 7 is a partial schematic view of a cross-sectional view of a processing station in the numerical control drilling machine of the present application.
The marks in the figure:
1. a base; 2. a processing table; 3. an X-direction moving device; 4. a Y-direction moving device; 5. a Z-direction moving device; 6. a main shaft; 7. a rotation driving device; 8. a clamp; 9. a tool magazine;
21. a fixing groove; 22. chip removal channel; 23. a wind discharging hole; 24. a connecting block; 241. an air cavity; 242. an air inlet; 243. an air outlet;
81. a mounting box; 811. a guide post; 812. an induction member; 82. a pressing member; 821. a cylinder; 822. a connecting rod; 823. a compression bar; 83. a support plate; 831. a code wheel; 84. an electric push rod;
91. A driver; 92. and a cutter head.
Detailed Description
According to the numerical control drilling machine and the control system thereof, the problem that in the prior art, the comprehensive drilling benefit monitoring accuracy is low is solved, the preset cutters of the appointed drilling machine are divided by the cutter division module in the numerical control drilling machine data acquisition center, then the drilling quality data, the drilling efficiency data, the drilling stability data and the drilling profit data of the appointed drilling machine in a preset time period are respectively acquired by the drilling quality data acquisition module, the drilling efficiency data, the drilling stability data and the drilling profit data acquisition module and are sent to the numerical control drilling machine data processing center, then the drilling quality data processing module, the drilling efficiency data processing module, the drilling stability data processing module and the drilling profit data processing module respectively calculate the drilling quality score, the drilling efficiency score, the drilling stability score and the drilling profit score of the appointed drilling machine according to the drilling data in the numerical control drilling machine data acquisition center, the comprehensive drilling benefit score of the appointed drilling machine is comprehensively calculated by the drilling profit data processing module and the calculated result is sent to the data drilling machine control center, and finally the numerical control machine control center takes comprehensive drilling benefit and control measures according to the calculated result, and the comprehensive drilling benefit monitoring accuracy is improved.
The technical scheme in the embodiment of the application aims to solve the problem of low accuracy of monitoring the comprehensive benefits of drilling, and the overall thought is as follows:
the method comprises the steps of acquiring drilling data of a designated numerical control drilling machine in a preset time period through each module in a numerical control drilling machine data acquisition center, transmitting the acquired drilling data to a numerical control drilling machine data processing center, then receiving the drilling data transmitted by the numerical control drilling machine data acquisition center by the numerical control drilling machine data processing center, calculating the drilling quality fraction, the drilling efficiency fraction, the drilling stability fraction and the drilling profit fraction of the designated numerical control drilling machine according to the drilling data, then comprehensively calculating the comprehensive drilling benefit fraction of the designated numerical control drilling machine, transmitting the calculated comprehensive drilling benefit fraction to a data drilling machine control center, receiving the comprehensive drilling benefit fraction transmitted by the numerical control drilling machine control center, and finally taking control measures according to the comprehensive benefit condition measured by the comprehensive drilling benefit fraction, thereby achieving the effect of improving the drilling comprehensive benefit monitoring accuracy.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
As shown in fig. 1, for a schematic structural diagram of a control system of a numerical control drilling machine provided in an embodiment of the present application, the control system of a numerical control drilling machine provided in an embodiment of the present application includes a data acquisition center of a numerical control drilling machine, a data processing center of a numerical control drilling machine, and a control center of a numerical control drilling machine: the numerical control drilling machine data acquisition center is used for: acquiring drilling data of a designated numerical control drilling machine in a preset time period, and transmitting the acquired drilling data to a numerical control drilling machine data processing center; the numerical control drilling machine data processing center is used for: receiving drilling data sent by a data acquisition center of the numerical control drilling machine, calculating comprehensive drilling benefit fraction of the designated numerical control drilling machine according to the drilling data, and sending the calculated comprehensive drilling benefit fraction to a control center of the numerical control drilling machine; the numerical control drilling machine control center is used for: and receiving the comprehensive drilling benefit fraction sent by the numerical control drilling machine, measuring the comprehensive benefit of the appointed numerical control drilling machine according to the comprehensive drilling benefit fraction, and taking control measures to control the comprehensive benefit of the appointed numerical control drilling machine.
In the embodiment, the comprehensive benefits of the numerical control drilling machine intuitively embody drilling quality, drilling efficiency, drilling stability and drilling profits, more effective control of the comprehensive benefits of the specified numerical control drilling machine is realized through the current comprehensive drilling benefit fraction, resources are utilized to the greatest extent, and more accurate monitoring of the comprehensive benefits of drilling is realized.
Further, as shown in fig. 2, for the structural schematic diagram of the numerical control drilling machine data acquisition center in the numerical control drilling machine control system provided in the embodiment of the present application, the numerical control drilling machine data acquisition center includes a cutter dividing module, a drilling quality data acquisition module, a drilling efficiency data acquisition module, a drilling stability data acquisition module and a drilling profit data acquisition module: the cutter dividing module is as follows: the numerical control drilling machine is used for dividing each preset cutter on a cutter head of a specified numerical control drilling machine and numbering each preset cutter, wherein the functions of each preset cutter are different; drilling quality data acquisition module: the method comprises the steps of acquiring drilling quality data of each preset cutter of a designated numerical control drilling machine in a preset time period, wherein the drilling quality data of each preset cutter comprise drilling precision data, surface roughness data of a drilling workpiece and surface damage degree data of the drilling workpiece; drilling efficiency data acquisition module: the method comprises the steps of acquiring drilling efficiency data of each preset cutter of a designated numerical control drilling machine in a preset time period, wherein the drilling efficiency data of each preset cutter comprise drilling speed data, feeding speed data of a drilling workpiece and single drilling time; drilling stability data acquisition module: the method comprises the steps of acquiring drilling stability data of each preset cutter of a designated numerical control drilling machine in a preset time period, wherein the drilling stability data of each preset cutter comprise a drilling axial error, a drilling radial error and a drilling failure rate; drilling profit data acquisition module: the drilling profit data comprises drilling workpiece total price data and drilling cost data of the preset time period, wherein the drilling profit data comprises labor cost data, material cost data and maintenance cost data of the appointed numerical control drilling machine in the preset time period; the borehole data includes borehole quality data, borehole efficiency data, borehole stability data, and borehole profit data.
In the embodiment, cutter accommodating stations which are arranged in a circumferential array are arranged on the cutter head and used for storing preset cutters; the surface roughness refers to the smaller spacing and the unevenness of tiny peaks and valleys on the processed surface, the distance between two peaks or two valleys is small, the surface roughness is smoother as the surface roughness is smaller, and the surface roughness is smaller; surface damage refers to the degree of damage to the surface of a workpiece during drilling, and specifically includes scratches, cuts, breaks, or surface burrs, etc., which may result in non-uniformity, cracks, weaknesses, or reduced fatigue life of the drilled surface; the drilling data of the numerical control drilling machine can be accurately acquired.
Further, as shown in fig. 3, a schematic structural diagram of a numerical control drilling machine data processing center in a numerical control drilling machine control system provided in the embodiments of the present application is provided, where the numerical control 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: reference borehole data storage module: the method comprises the steps of storing reference drilling quality data, reference drilling efficiency data, reference drilling stability data and reference drilling cost data of a designated numerical control drilling machine; drilling quality data processing module: the drilling quality data acquisition module is used for processing drilling precision data of each preset cutter, surface roughness data and surface damage degree data of a drilling workpiece in the designated numerical control drilling machine in a preset time period, and calculating the drilling quality fraction of the designated numerical control drilling machine in the preset time period by combining reference drilling quality data; drilling efficiency data processing module: the drilling efficiency data acquisition module is used for processing the drilling speed data, single drilling time and feeding speed data of each preset cutter in the numerical control drilling machine in a preset time period, and calculating the drilling efficiency fraction of the specified numerical control drilling machine in the preset time period by combining with reference drilling efficiency data, wherein the drilling speed data refers to the number of drilling workpieces which can be drilled by each preset cutter per minute; drilling stability data processing module: the drilling stability data acquisition module is used for processing the drilling axial error data, the drilling radial error data and the drilling failure rate of each preset cutter in the designated numerical control drilling machine in the preset time period acquired by the drilling stability data acquisition module, and calculating the drilling stability fraction of the designated numerical control drilling machine in the preset time period by combining the reference drilling stability data; drilling profit data processing module: the drilling cost data acquisition module is used for processing the total price data of the drilling workpiece and the drilling cost data in a preset time period, and calculating the drilling profit score of the designated numerical control drilling machine in the preset time period by combining the reference drilling cost data, so as to calculate the corresponding comprehensive drilling benefit score.
In the embodiment, the feeding speed data of the drilling workpiece reflects the speed of the drill bit moving when the numerical control drilling machine feeds each time, and the higher feeding speed can accelerate the drilling process and improve the drilling efficiency; the axial error of the drilling refers to the deviation between the drilling axis and the set axis, and the axial stability of the drilling machine can be evaluated; the radial error of drilling refers to the deviation between the drilling aperture and the target aperture, and the radial stability of the drilling machine can be evaluated; the comprehensive drilling benefit fraction is determined by the drilling quality fraction, the drilling efficiency fraction, the drilling stability fraction and the drilling profit fraction; and the comprehensive drilling benefit condition is more intuitively evaluated.
Further, the concrete calculation process of the drilling mass fraction is as follows: according to the received drilling diameter data of the ith-kth drilling workpiece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time periodDrilling depth data->Drilling position data->Reference borehole diameter data->Drilling depth data->Drilling position data->Calculating the drilling precision fraction DA of the appointed numerical control drilling machine in the h preset time period through a drilling precision fraction formula h The drilling precision fraction formula is as follows
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 total number of preset tools on a cutterhead of a numerical control drilling machine, i→k=1, 2,..i→k, i→k is the total number of drilling work pieces of the i-th preset tool, α is a correction factor of drilling diameter data of the drilling work pieces, β is a correction factor of drilling position data of the drilling work pieces, χ is a correction factor of drilling depth data of the drilling work pieces; then according to the received ith-kth drilling work piece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period, after the drilling of the drilling work piece is completed, the surface roughness data of the drilling work piece is obtainedAnd surface damage data->Combining reference surface roughness data of a drilled workpieceCalculating the drilling quality score DQ of the appointed numerical control drilling machine in the h preset time period through a drilling quality score formula h The mass fraction formula of the drilling hole is as follows
Wherein delta is a correction factor of the drilling precision fraction of the drilling workpiece, phi is a correction factor of the surface damage degree data of the drilling workpiece after the drilling is completed,a correction factor of surface roughness data of the drilling 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 coordinates formed by combining an X-direction moving device, a Y-direction moving device and a Z-direction moving device on a designated numerical control drilling machine when each cutter on a cutter head of the designated numerical control drilling machine drills for each drilling workpiece; 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.
In this embodiment, the diameter of the drill hole refers to the size of the bore hole, which is extremely important in the case of matching, nesting or assembling with other parts, and if the design requirement is deviated, assembly problems, sealing problems or functional problems may be caused; drilling depth refers to the length or depth of a borehole, which, if too shallow or too deep, may affect the assembly, connection or function of the parts; for the situation of porous member assembly or positioning of critical components, the accuracy of the drilling position is critical; drilling accuracy is one of the most basic and key metrics, which determines whether drilling meets design requirements and directly affects assembly and functionality of the product; the lower surface roughness can provide better sealing, lubricating and wear resistance, affecting the friction, durability and appearance quality of the part; the lower surface damage degree can reduce the brittleness and damage degree of the workpiece, and maintain the integrity and strength of the drilling; the maximum value of the drilling precision fraction is 1, and the maximum value of the drilling quality fraction is also 1; the drilling quality condition of the numerical control drilling machine is accurately measured.
Further, the specific calculation process of the drilling efficiency fraction is as follows: according to the received feeding speed data of the ith-k drilling work piece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period Obtaining first feed speed data Max, FR of each drilling workpiece of the ith preset cutter on a cutter head of the appointed numerical control drilling machine in the h preset time period h,i And second feed speed data Min, FR h,i Wherein Max, FR h,i Is thatMin,FR h,i Is->Combining the received reference feed speed data of the ith-k drilling work piece of the ith preset cutter on the cutter head of the numerical control drilling machine in the h preset time period>Calculating a drilling feed speed index FD of a designated numerical control drilling machine in a h preset time period through a drilling feed speed index formula h The index formula of the drilling feeding speed is
Combining the received drilling speed data DV of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period h,i Reference borehole velocity data ΔDV h,i H thDesignating drilling time index TD of numerical control drilling machine in preset time period h Calculating the drilling efficiency score DE of the appointed numerical control drilling machine in the h preset time period through a drilling efficiency score formula h The drilling efficiency fraction formula is as follows
Wherein λ is a correction factor of drilling speed data of each preset tool, μ is a safety factor specifying a drilling feed speed index of the numerical control drilling machine, ν is a safety factor specifying a drilling time index of the numerical control 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 a maximum of 1; the higher feeding speed can accelerate the drilling process and improve the drilling efficiency; the higher drilling speed means that the machine can complete drilling tasks faster, and the production efficiency is improved; when the actual drilling speed data is the same as the reference drilling speed data and the drilling feeding speed index and the drilling time index are both 1, the drilling efficiency is optimal; the drilling efficiency condition of the numerical control drilling machine is accurately evaluated.
Further, the specific calculation process of the drilling time index is as follows: designating single drilling time of the ith-kth drilling workpiece of the ith preset cutter on the cutter head of the numerical control drilling machine according to the received h preset time periodObtaining a single drilling first time Max, DT of each drilling workpiece of the ith preset cutter on a cutter head of the appointed numerical control drilling machine in the h preset time period h,i And a single drilling second time Min, DT h,i Wherein Max, DT h,i Is thatMin,DT h,i Is->Combining the received reference single drilling time of the ith-k drilling workpiece of the ith preset cutter on the cutter head of the numerical control drilling machine in the h preset time period >Calculating a drilling time index TD of the appointed numerical control drilling machine in the h preset time period through a drilling time index formula h The drilling time index formula is
In this embodiment, a shorter drilling time means that the machine can complete the drilling task faster, improving the drilling efficiency; similarly, when the first time of single drilling and the second time of single drilling of each drilling workpiece are the same and are equal to the reference single drilling time, the corresponding drilling time index reaches the maximum; the drilling efficiency of the numerical control drilling machine is evaluated more efficiently.
Further, the specific calculation process of the drilling stability score is as follows: according to the received drilling axial error data of the ith-kth drilling workpiece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time periodAnd drilling radial error data>Obtaining first drilling axial error data Max, AD of a drilling workpiece of an ith preset cutter on a cutter head of a designated numerical control drilling machine in an h preset time period h,i And first borehole radial error data Max, RD h,i Wherein Max, AD h,i Is->Max,RD h,i Is->Then combining the received failure rate F of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period h,i A single drilling of each drilling workpiece on the preset cutter for a first time Max, DT h,i And a single drilling second time Min, DT h,i Calculating a drilling stability score DS of the appointed numerical control drilling machine in the h preset time period through a drilling stability score formula h The drilling stability fraction formula is
Wherein λ is a correction factor of first borehole axial error data of the specified numerical control drilling machine, and ν is a correction factor of first borehole radial error data of the specified numerical control drilling machine.
In this embodiment, when the single drilling first time and the single drilling second time of each drilling workpiece are the same, it is indicated that the drilling speeds of the preset cutters for each drilling workpiece are the same in the preset time period; a smaller axial error means that the drill can maintain higher axial stability; a smaller radial error means that the drill can maintain a higher radial stability; when the first drilling axial error data and the first drilling radial error data of each drilling workpiece are both 0, the failure rate of the preset cutter in the preset time period is 0, and the first time of single drilling is the same as the second time of single drilling, the corresponding drilling stability reaches the maximum value, and the drilling state of the designated numerical control drilling machine in the preset time period is stable; the stability condition of the numerical control drilling machine is accurately evaluated.
Further, the concrete calculation process of the profit score of the drilling hole is as follows: designating total value P of drilling workpieces of the numerical control drilling machine according to the received h preset time period h And combining drilling cost data DC of the appointed numerical control drilling machine in the h preset time period h And referencing borehole cost data ΔDC h General purpose medicineCalculating the drilling profit score DP of the appointed numerical control drilling machine in the h preset time period through a drilling profit score formula h The drilling profit score formula isWherein->And (3) a correction factor for the total price of the drilling hole.
In this embodiment, the profit of the drilling is a key index for evaluating the economic benefit of the drilling process; when the actual drilling cost and the reference drilling cost are equal, the drilling profit fraction reaches the maximum, the maximum value is 1, and the corresponding profit reaches the maximum; when the profit fraction of drilling is low, improvements are needed in terms of cost and drilling quality, efficiency and stability of the numerical control drilling machine; a more direct assessment of the profitability of the numerically controlled drilling machine is achieved.
Further, the specific calculation process of the comprehensive drilling benefit fraction is as follows: combining drilling quality fraction DQ of a designated numerical control drilling machine in the h preset time period h Drilling efficiency fraction DE h Drill stability score DS h And a borehole profit score DP h Calculating the comprehensive benefit score DB of the appointed numerical control drilling machine in the h preset time period through a drilling benefit score formula h The drilling benefit fraction formula is as follows
Wherein θ is,ρ and σ are safety factors specifying a drilling profit fraction, a drilling stability fraction, a drilling efficiency fraction, and a drilling quality fraction for a numerical control drilling machine.
In this embodiment, the quality of the drilled holes is critical for many applications, especially for workpieces requiring high precision and quality surfaces, which can ensure proper assembly and function of the workpiece; drilling efficiency is critical for mass production and high productivity applications, and a rapid and efficient drilling process can reduce production costs, shorten production cycle time, and increase throughput; drilling stability is critical to ensure workpiece and machine safety and operator comfort, and stable drilling processes can reduce vibration, reduce noise, extend equipment life, and reduce operator fatigue and work injury risks; increasing the profit margin of the borehole may mean reducing costs, increasing productivity, increasing yield, and improving product quality; the comprehensive drilling benefit condition of the numerical control drilling machine is more intuitively evaluated.
The embodiment of the application provides a use above-mentioned control system's numerical control drilling machine, including base 1 and processing platform 2, wherein: an X-direction moving device 3 is arranged on the base 1, and the X-direction moving device 3 can move along the X-axis direction; the X-direction moving device 3 is provided with a Y-direction moving device 4, and the Y-direction moving device 4 can move along the Y-axis direction; the Y-direction moving device 4 is provided with a Z-direction moving device 5, and the Z-direction moving device 5 can move along the Z-axis direction; a main shaft 6 is arranged on the Z-direction moving device 5; the outside of the X-direction moving device 3 is provided with a rotary driving device 7, the rotary driving device 7 is arranged on the base 1, the processing table 2 is arranged on the rotary driving device 7 and is controlled to rotate by the rotary driving device 7, the processing table 2 is provided with at least two mounting stations, each mounting station is provided with a clamp 8, the outside of the processing table 2 is provided with a tool magazine 9, the tool magazine 9 comprises a driver 91 and a cutter 92, the driver 91 is arranged on the base 1 and is used for driving the cutter 92 to rotate, and a plurality of tool accommodating stations which are arranged in a circumferential array are arranged on the cutter 92; the device also comprises a controller, wherein the controller is used for controlling the X-direction moving device 3, the Y-direction moving device 4, the Z-direction moving device 5, the main shaft 6, the tool magazine 9 and the rotary driving device 7 to move; the numerical control drilling machine comprises the following using processes: the workpiece to be processed is arranged on any fixture 8, the rotary driving device 7 drives the processing table 2 to rotate, so that the fixture 8 moves below the spindle 6, then the X-direction moving device 3, the Y-direction moving device 4 and the Z-direction moving device 5 cooperate with the control spindle 6 to drive the cutter to perform drilling and milling processing on a specific position of the workpiece, in the process, workers place the workpiece to be processed on the fixtures 8 of other mounting stations, and after the workpiece on any fixture 8 finishes processing, the rotary driving device 7 drives the processing table 2 to rotate, so that the other workpiece moves below the spindle 6 to perform processing; by adopting the design of the application, the synchronous drilling and workpiece disassembly and replacement can be realized, and then the main shaft 6 can uninterruptedly process each workpiece, so that the production efficiency is greatly improved.
In this embodiment, a tool magazine 9 is disposed on the outer side of the processing table 2, the tool magazine 9 includes a driver 91 and a cutter 92, the driver 91 is mounted on the base 1 and is used for driving the cutter 92 to rotate, and a plurality of tool accommodating stations arranged in a circumferential array are disposed on the cutter 92. Specifically, the tool accommodating station is configured to accommodate different tools, and according to a tool changing requirement, the driver 91 drives the cutter head 92 to rotate, so that the corresponding tools move to the tool taking position, so that the spindle 6 can automatically change the tools.
And a partition plate is arranged between two adjacent installation stations and is fixedly connected to the processing table 2. By adopting the design, scraps generated during drilling and milling can be prevented from splashing onto the body of a worker.
The clamp 8 comprises a mounting box 81 and a plurality of pressing pieces 82 arranged on the mounting box 81; the mounting box 81 is mounted on the processing table 2; the pressing member 82 includes a cylinder 821, a link 822, and a pressing rod 823, the cylinder 821 is mounted on the mounting case 81, an end of the pressing rod 823 is hinged to an output end of the cylinder 821, one end of the link 822 is hinged to the cylinder 821, and the other end is hinged to the pressing rod 823. Specifically, after the workpiece is placed on the mounting box 81, the output end of the air cylinder 821 drives one end of the pressing rod 823 to lift upwards, and the other end of the pressing rod 823 automatically moves downwards, so that the workpiece is pressed.
The mounting box 81 is provided with a support plate 83, a rotating shaft is arranged at the bottom of the support plate 83, the rotating shaft is rotationally connected with the mounting box 81, and a plurality of pressing pieces 82 are arranged on the support plate 83; the mounting box 81 is provided with two electric push rods 84, the two electric push rods 84 are all arranged below the support plate 83 and are positioned on two sides of the rotating shaft, the output end of each electric push rod 84 is provided with a roller, and the rollers are abutted against the support plate 83. Specifically, according to the processing requirement of the workpiece, any one of the electric push rods 84 can be driven to jack up the support plate 83 upwards, and the other electric push rod 84 correspondingly descends, so that the support plate 83 rotates to a specific angle, even if the workpiece inclines to form a specific angle, at the moment, the Z-direction moving device 5 drives the main shaft 6 to descend, and the cutter can drill and mill inclined holes on the workpiece. By adopting the design, the drilling and milling of the straight holes and the inclined holes of the workpiece can be realized at one time, and the processing efficiency is effectively improved.
Guide grooves are formed in both ends of the support plate 83, guide columns 811 are formed in the mounting box 81 and are matched with the guide grooves, and the guide columns 811 are arranged in the guide grooves. The stability of the support plate 83 during swinging can be improved by adopting the cooperation of the guide post 811 and the guide groove.
The rotating shaft is provided with a code disc 831, and the mounting box 81 is provided with a sensing piece 812 at a position corresponding to the code disc 831. The cooperation of the code disc 831 and the sensing element 812 can be used to detect whether the support 83 is rotated into place.
A plurality of fixing grooves 21 are formed in the processing table 2, fixing blocks matched with the fixing grooves 21 are arranged on the clamp 8, and the fixing blocks are arranged in the fixing grooves 21; chip removal channels 22 corresponding to the number of the fixed grooves 21 are formed in one side of the processing table 2, one chip removal channel 22 is correspondingly formed in one side of each fixed groove 21, a plurality of inclined air leakage holes 23 are formed in one side of each chip removal channel 22, and preferably, the included angle between the axis of each air leakage hole 23 and the axis of each chip removal channel 22 is 45-60 degrees, and the air leakage holes 23 at the side end of each chip removal channel 22 are communicated with the corresponding fixed groove 21; the side end of the processing table 2 is provided with a connecting block 24, the middle part of the connecting block 24 is provided with an air cavity 241, one side of the connecting block 24 is provided with an air inlet 242 communicated with the air cavity 241, the other side is provided with a plurality of air outlets 243 communicated with the air cavity 241, and the positions of the air outlets 243 are in one-to-one correspondence with the positions of the chip removal channels 22. When the workpiece is processed, more scraps fall into the fixed groove 21, and after compressed air is introduced into the air inlet 242, the compressed air is split into the chip removing grooves 22 and discharged from the air discharging holes 23, so that the scraps in the fixed groove 21 are removed. By adopting the design, the chip removal operation is simple, convenient and efficient.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages: relative to publication No.: according to the control system and the control method of the drilling machine disclosed by the CN104793562A, the corresponding first feeding speed and second feeding speed are obtained by comparing the received feeding speed data of each drilling workpiece of each preset cutter of the numerical control drilling machine in each preset time period, then the drilling feeding speed index of the numerical control drilling machine in the preset time period is obtained by combining the corresponding reference feeding speed data, then the corresponding first single drilling time and the second single drilling time are obtained by comparing the received single drilling time of each drilling workpiece of each preset cutter of the numerical control drilling machine in each preset time period, the drilling time index of the numerical control drilling machine in each preset time period is calculated by combining the corresponding reference single drilling time, and finally the drilling efficiency score of the numerical control drilling machine in each preset time period is calculated by combining the drilling speed data and the reference drilling speed data, so that the accurate assessment of the drilling efficiency is realized, and the improvement of the accuracy of the drilling efficiency assessment is realized; relative to publication No.: according to the embodiment of the invention, through comparing received drilling axial error data of each drilling workpiece of each preset cutter of the numerical control drilling machine in each preset time period, corresponding first drilling axial error data are obtained, then received drilling radial error data of each drilling workpiece of each preset cutter are compared, corresponding first drilling radial error data are obtained, and finally, the received failure rate of each preset cutter in each preset time period and the first single drilling time and the second single drilling time of each drilling workpiece on each preset cutter are combined, so that the drilling stability score of the specified numerical control drilling machine in each preset time period is calculated, the drilling stability of the numerical control drilling machine is comprehensively evaluated, and further the more accurate evaluation of the drilling stability is realized.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present 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, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of systems, apparatuses (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The numerical control drilling machine control system is characterized by comprising a numerical control drilling machine data acquisition center, a numerical control drilling machine data processing center and a numerical control drilling machine control center:
wherein, numerical control drilling machine data acquisition center is used for: acquiring drilling data of a designated numerical control drilling machine in a preset time period, and transmitting the acquired drilling data to a numerical control drilling machine data processing center;
the numerical control drilling machine data processing center is used for: receiving drilling data sent by a data acquisition center of the numerical control drilling machine, calculating comprehensive drilling benefit fraction of the designated numerical control drilling machine according to the drilling data, and sending the calculated comprehensive drilling benefit fraction to a control center of the numerical control drilling machine;
the numerical control drilling machine control center is used for: and receiving the comprehensive drilling benefit fraction sent by the numerical control drilling machine, measuring the comprehensive benefit of the appointed numerical control drilling machine according to the comprehensive drilling benefit fraction, and taking control measures to control the comprehensive benefit of the appointed numerical control drilling machine.
2. The numerically controlled drilling machine control system of claim 1, wherein the numerically controlled drilling machine data collection center comprises a tool partitioning 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 cutter dividing module is used for: the numerical control drilling machine is used for dividing each preset cutter on a cutter head of a specified numerical control drilling machine and numbering each preset cutter, wherein the functions of each preset cutter are different;
the drilling quality data acquisition module is used for: the method comprises the steps of acquiring drilling quality data of each preset cutter of a designated numerical control drilling machine in a preset time period, wherein the drilling quality data of each preset cutter comprise drilling precision data, surface roughness data of a drilling workpiece and surface damage degree data of the drilling workpiece;
the drilling efficiency data acquisition module is as follows: the method comprises the steps of acquiring drilling efficiency data of each preset cutter of a designated numerical control drilling machine in a preset time period, wherein the drilling efficiency data of each preset cutter comprise drilling speed data, feeding speed data of a drilling workpiece and single drilling time;
the drilling stability data acquisition module is as follows: the method comprises the steps of acquiring drilling stability data of each preset cutter of a designated numerical control drilling machine in a preset time period, wherein the drilling stability data of each preset cutter comprise a drilling axial error, a drilling radial error and a drilling failure rate;
The drilling profit data acquisition module: the method comprises the steps of acquiring drilling profit data of a designated numerical control drilling machine in a preset time period, wherein the drilling profit data comprise drilling workpiece total price data and drilling cost data in the preset time period, and the drilling cost data comprise labor cost data, material cost data and maintenance cost data of the designated numerical control drilling machine in the preset time period;
the borehole data includes borehole quality data, borehole efficiency data, borehole stability data, and borehole profit data.
3. The numerically controlled drilling machine control system of claim 2, wherein the numerically controlled drilling machine data processing center comprises a reference borehole data storage module, a borehole quality data processing module, a borehole efficiency data processing module, a borehole stability data processing module, and a borehole profit data processing module:
the reference borehole data storage module: the method comprises the steps of storing reference drilling quality data, reference drilling efficiency data, reference drilling stability data and reference drilling cost data of a designated numerical control drilling machine;
the drilling quality data processing module is used for: the drilling quality data acquisition module is used for processing drilling precision data of each preset cutter, surface roughness data and surface damage degree data of a drilling workpiece in the designated numerical control drilling machine in a preset time period, and calculating the drilling quality fraction of the designated numerical control drilling machine in the preset time period by combining reference drilling quality data;
The drilling efficiency data processing module is used for: the drilling efficiency data acquisition module is used for processing the drilling speed data, single drilling time and feeding speed data of each preset cutter in the numerical control drilling machine in a preset time period, and calculating the drilling efficiency fraction of the specified numerical control drilling machine in the preset time period by combining with reference drilling efficiency data, wherein the drilling speed data refers to the number of drilling workpieces which can be drilled by each preset cutter per minute;
the drilling stability data processing module is used for: the drilling stability data acquisition module is used for processing the drilling axial error data, the drilling radial error data and the drilling failure rate of each preset cutter in the designated numerical control drilling machine in the preset time period acquired by the drilling stability data acquisition module, and calculating the drilling stability fraction of the designated numerical control drilling machine in the preset time period by combining the reference drilling stability data;
the drilling profit data processing module: the drilling cost data acquisition module is used for processing the total price data of the drilling workpiece and the drilling cost data in a preset time period, and calculating the drilling profit score of the designated numerical control drilling machine in the preset time period by combining the reference drilling cost data, so as to calculate the corresponding comprehensive drilling benefit score.
4. A numerical control drilling machine control system according to claim 3, wherein the specific calculation process of the drilling mass fraction is as follows:
according to the received drilling diameter data of the ith-kth drilling workpiece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time periodDrilling depth data->Drilling position data->Reference borehole diameter data->Drilling depth data->Drilling position data->Calculating the drilling precision fraction DA of the appointed numerical control drilling machine in the h preset time period through a drilling precision fraction formula h The drilling precision fraction formula is as follows
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 total number of preset tools on a cutterhead of a numerical control drilling machine, i→k=1, 2,..i→k, i→k is the total number of drilling work pieces of the i-th preset tool, α is a correction factor of drilling diameter data of the drilling work pieces, β is a correction factor of drilling position data of the drilling work pieces, χ is a correction factor of drilling depth data of the drilling work pieces;
then according to the received ith-kth drilling work piece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period, after the drilling of the drilling work piece is completed, the surface roughness data of the drilling work piece is obtained And surface damage data->Bonding ofReference surface roughness data of a drilled workpiece>Calculating the drilling quality score DQ of the appointed numerical control drilling machine in the h preset time period through a drilling quality score formula h The drilling mass fraction formula is +.>
Wherein delta is a correction factor of the drilling precision fraction of the drilling workpiece, phi is a correction factor of the surface damage degree data of the drilling workpiece after the drilling is completed,a correction factor of surface roughness data of the drilling workpiece after drilling is completed;
the drilling accuracy data comprises drilling diameter data, drilling depth data and drilling position data;
the drilling position data is determined by coordinates formed by combining an X-direction moving device, a Y-direction moving device and a Z-direction moving device on a designated numerical control drilling machine when each cutter on a cutter head of the designated numerical control drilling machine drills for each drilling workpiece;
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. The numerically controlled drilling machine control system of claim 4, wherein the drilling efficiency score is calculated by:
according to the received feeding speed data of the ith-k drilling work piece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period Obtaining first feed speed data Max, FR of each drilling workpiece of the ith preset cutter on a cutter head of the appointed numerical control drilling machine in the h preset time period h,i And second feed speed data Min, FR h,i Wherein Max, FR h,i Is->Min,FR h,i Is thatCombining the received reference feed speed data of the ith-k drilling work piece of the ith preset cutter on the cutter head of the numerical control drilling machine in the h preset time period>Calculating a drilling feed speed index FD of a designated numerical control drilling machine in a h preset time period through a drilling feed speed index formula h The drill feed speed index formula is
Combining the received drilling speed data DV of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period h,i Reference borehole velocity data ΔDV h,i Designating a drilling time index TD of the numerical control drilling machine in an h preset time period h Calculating the drilling efficiency score DE of the appointed numerical control drilling machine in the h preset time period through a drilling efficiency score formula h The drilling efficiency fraction formula is as follows
Wherein λ is a correction factor of drilling speed data of each preset tool, μ is a safety factor specifying a drilling feed speed index of the numerical control drilling machine, ν is a safety factor specifying a drilling time index of the numerical control drilling machine, and μ+ν=1.
6. The numerical control drilling machine control system according to claim 5, wherein the drilling time index is calculated as follows:
designating single drilling time of the ith-kth drilling workpiece of the ith preset cutter on the cutter head of the numerical control drilling machine according to the received h preset time periodObtaining a single drilling first time Max, DT of each drilling workpiece of the ith preset cutter on a cutter head of the appointed numerical control drilling machine in the h preset time period h,i And a single drilling second time Min, DT h,i Wherein Max, DT h,i Is->Min,DT h,i Is thatCombining the received reference single drilling time of the ith-k drilling workpiece of the ith preset cutter on the cutter head of the numerical control drilling machine in the h preset time period>Calculating a drilling time index TD of the appointed numerical control drilling machine in the h preset time period through a drilling time index formula h The drilling time index formula is +.>
7. The numerically controlled drilling machine control system of claim 6, wherein the borehole stability score is calculated by:
according to the received drilling axial error data of the ith-kth drilling workpiece of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period And drilling radial error data>Obtaining first drilling axial error data Max, AD of a drilling workpiece of an ith preset cutter on a cutter head of a designated numerical control drilling machine in an h preset time period h,i And first borehole radial error data Max, RD h,i Wherein Max, AD h,i Is->Max,RD h,i Is->
Then combining the received failure rate F of the ith preset cutter on the cutter head of the appointed numerical control drilling machine in the h preset time period h,i A single drilling of each drilling workpiece on the preset cutter for a first time Max, DT h,i And a single drilling second time Min, DT h,i Calculating a drilling stability score DS of the appointed numerical control drilling machine in the h preset time period through a drilling stability score formula h The drilling stability fraction formula is as follows
Wherein λ is a correction factor of first borehole axial error data of the specified numerical control drilling machine, and ν is a correction factor of first borehole radial error data of the specified numerical control drilling machine.
8. The numerically controlled drilling machine control system of claim 7, wherein the calculation of the profit margin score for the borehole is performed as follows:
designating total value P of drilling workpieces of the numerical control drilling machine according to the received h preset time period h And combining drilling cost data DC of the appointed numerical control drilling machine in the h preset time period h And referencing borehole cost data ΔDC h Calculating a drilling profit score DP of the appointed numerical control drilling machine in the h preset time period through a drilling profit score formula h The drilling profit score formula is thatWherein->And (3) a correction factor for the total price of the drilling hole.
9. The numerically controlled drilling machine control system of claim 8, wherein the overall drilling benefit score is calculated as follows:
combining drilling quality fraction DQ of a designated numerical control drilling machine in the h preset time period h Drilling efficiency fraction DE h Drill stability score DS h And a borehole profit score DP h Calculating the comprehensive benefit score DB of the appointed numerical control drilling machine in the h preset time period through a drilling benefit score formula h The drilling benefit fraction formula is as follows
Wherein θ is,ρ and σ are the installation of the drilling profit score, the drilling stability score, the drilling efficiency score, and the drilling quality score for a given numerical control drilling machineFull factor.
10. A numerical control drilling machine using the control system according to any one of claims 1-9, characterized by comprising a base and a machining table:
the base is provided with an X-direction moving device which 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 main shaft is arranged on the Z-direction moving device; the X-direction moving device is provided with a rotary driving device at the outer side, the rotary driving device is arranged on the base, the processing table is arranged on the rotary driving device and is controlled to rotate by the rotary driving device, the processing table is provided with at least two mounting stations, and a clamp is arranged on each mounting station;
the outer side of the processing table is provided with a tool magazine, the tool magazine comprises a driver and a cutter head, the driver is arranged on the base and used for driving the cutter head to rotate, and a plurality of tool accommodating stations which are arranged in a circumferential array are arranged on the cutter head;
the device also comprises a controller, wherein the controller is used for controlling the X-direction moving device, the Y-direction moving device, the Z-direction moving device, the main shaft, the tool magazine and the rotary driving device to move.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311317956.XA CN117428229A (en) | 2023-10-11 | 2023-10-11 | Numerical control drilling machine and control system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311317956.XA CN117428229A (en) | 2023-10-11 | 2023-10-11 | Numerical control drilling machine and control system thereof |
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