SU1380874A1 - Method of monitoring the process of deep drilling - Google Patents
Method of monitoring the process of deep drilling Download PDFInfo
- Publication number
- SU1380874A1 SU1380874A1 SU864073061A SU4073061A SU1380874A1 SU 1380874 A1 SU1380874 A1 SU 1380874A1 SU 864073061 A SU864073061 A SU 864073061A SU 4073061 A SU4073061 A SU 4073061A SU 1380874 A1 SU1380874 A1 SU 1380874A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pressure
- rotation frequency
- coolant
- deep drilling
- machine
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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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
- G05B19/406—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 characterised by monitoring or safety
- G05B19/4065—Monitoring tool breakage, life or condition
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37245—Breakage tool, failure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Drilling And Boring (AREA)
Abstract
Изобретение относитс к обработке материалов резанием и может быть использовано при контроле процессов глубокого сверлени . Цель изобретени - повышение надежности за счет исключени поломок инструмента. Дл этого одртовременно измер ютс давление СОЖ, подаваемой в зону резани , и частота вращени шпиндел . Если давление СОЖ выходит за предельно заданные значени или частота вращени шпиндел отличаетс от заданной, рабоча подача станка выключаетс , включаетс отвод инструмента из зоны резани и по вл етс информаци об аварийной ситуации. При одновременном падении давлени СОЖ и частоты вращени шпиндел по окончании обработки по вление ложной информации об аварийной ситуации исключаетс ., I ил. (ОThe invention relates to the processing of materials by cutting and can be used to control the process of deep drilling. The purpose of the invention is to increase reliability by eliminating tool breakage. For this, the pressure of the coolant supplied to the cutting zone and the spindle rotation frequency are measured simultaneously. If the coolant pressure is out of the limit or the spindle speed is different from the set one, the machine’s working feed is turned off, the tool is turned off from the cutting zone, and an emergency is reported. With a simultaneous drop in the coolant pressure and rotation frequency at the end of processing, the occurrence of false information about an emergency situation is eliminated. I Il. (ABOUT
Description
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Изобретение относитс к обработке металлов резанием и может быть ис пользовано при контроле процессов глубокого сверлени .The invention relates to metal cutting and can be used in the control of deep drilling processes.
Цель изобретени - повышение надежности за счет исключени поломок инструмента и получени определенной информации о ходе процесса сверлени .The purpose of the invention is to increase reliability by eliminating tool failures and obtaining certain information about the drilling process.
На чертеже представлена блок-схема , иллюстрирующа способ.The drawing shows a block diagram illustrating the method.
Давление СПЖ, подаваемой в зону обработки станка 1, учитываетс датчиком 2 давлени и блоком 3 измерени давлени . Сравнение давлени СОЖ с предельно заданными уровн ми осуществл етс с помощью схемы 4 сравнени , один вход которой соединен с выThe pressure of the ASM supplied to the treatment area of the machine 1 is taken into account by the pressure sensor 2 and the pressure measurement unit 3. Comparison of the pressure of the coolant with the maximum specified levels is carried out using the comparison circuit 4, one input of which is connected to
ходом блока 3 измерени давлени , а два других - с выходами блока 5 исходно заданных результатов.the flow of the pressure measurement unit 3, and the other two with the outputs of the unit 5 of the initially specified results.
Выход схемы 4 сравнени соединен с первым входом схемы 6 ИСКЛЮЧАЮЩЕЕ ИЛИ, выход которой соединен с входом блока 7 управлени станком, св занного с исполнительным устройством 1 станка. Частота вращени шпиндел измер етс с помощью датчика 8 частоты вращени и блока 9 измерени часто- ты, выход которого соединен с первым входом cxeNtbi 10 сравнени , второй вход которой подключен к выходу блока II исходно заданной частоты. Выход схемы 10 сравнени частоты сое- динен с вторым входом схемы 6 ИСКЛЮЧАЮЩЕЕ ИЛИ.The output of the comparison circuit 4 is connected to the first input of the EXCLUSIVE OR circuit 6, the output of which is connected to the input of the machine control unit 7 connected to the actuator 1 of the machine. The spindle rotation frequency is measured by a rotation speed sensor 8 and a frequency measuring unit 9, the output of which is connected to the first input cxeNtbi 10 of the comparison, the second input of which is connected to the output of the unit II of the initial set frequency. The output of the frequency comparison circuit 10 is connected to the second input of the circuit 6 EXCLUSIVE OR.
Способ осуществл етс следуюсцим образом.The method is carried out in the following manner.
В исходном состо нии, когда давле нйе в линии нагнетани СОЖ станка 1 равно нулю и шпиндель не вращаетс , на выходах схем 4 и 10 сравнени и схемы 6 ИСКЛЮЧАЮЩЕЕ ШШ присутствуют сигналы О.In the initial state, when the pressure in the coolant line of the machine 1 is zero and the spindle does not rotate, at the outputs of the comparison circuits 4 and 10 and the EXCLUSIVE SHW circuit 6 there are O signals.
При подаче СОЖ в линию нагнетани и включении вращени шпиндел с помощью датчика 2 давлени , датчи0When coolant is supplied to the discharge line and spindle rotation is enabled using the pressure sensor 2, sensor
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ка 8 частоты, блока 3 измерени давлени и блока 9 измерени частоты вращени давление и частота вращени шпиндел преобразуютс в напр жение посто нного тока. С помощью схем 4 и 10 сравнени давление и частота вращени сравниваютс с заданными уровн ми. Если давление Находитс в заданных пределах, а частота вращени соответствует исходно заданной, на выходах схем 4 и 10 сравнени по вл ютс 1, на выходе схемы 6 ИСКЛЮЧАЮЩЕЕ остаетс О. Включаетс рабоча подача станка 1.At frequency 8, pressure measurement unit 3 and rotation frequency measurement unit 9, the pressure and spindle rotation frequency are converted to direct current voltage. Using the comparison circuits 4 and 10, the pressure and rotation frequency are compared with predetermined levels. If the pressure is within the specified limits, and the rotational speed corresponds to the initial set, at the outputs of the circuits 4 and 10 the comparison appears 1, the output of the circuit 6 EXCLUSIVE O remains. The working feed of the machine 1 is turned on.
Если во врем работы давление или частота вращени отличаютс от исходно заданных, на выходе одной из схем сравнени по вл етс О. При этом на входах схемы 6 ИСКЛЮЧАЮЩЕЕ ИЛИ - разноименные сигналы, а на ее выходе по вл етс сигнал 1, сигнализирующий об аварийной ситуации. Блок 7 управлени станком выключает рабочую подачу и включает отвод инструмента из зоны резани . При одновременном снижении давлени и частоты вращени , что происходит по окончании обработки и не может произойти во врем сверлени , на входах и выходе схемы ИСКЛЮЧАЮЩЕЕ ИЛИ будут О, чем исключаетс по вление ложного сигнала аварийной ситуации конца обработки.If during operation the pressure or rotation frequency differs from the initial set, O will appear at the output of one of the comparison circuits. In this case, the inputs of circuit 6 EXCLUSIVE OR will show different signals, and at its output a signal 1 will appear, signaling an emergency . The machine control unit 7 switches off the working feed and turns the tool out of the cutting zone. With simultaneous decrease in pressure and rotation frequency, which occurs at the end of processing and cannot occur during drilling, the inputs and outputs of the EXCLUSIVE OR circuit will be O, which eliminates the appearance of a false alarm at the end of processing.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864073061A SU1380874A1 (en) | 1986-02-24 | 1986-02-24 | Method of monitoring the process of deep drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864073061A SU1380874A1 (en) | 1986-02-24 | 1986-02-24 | Method of monitoring the process of deep drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1380874A1 true SU1380874A1 (en) | 1988-03-15 |
Family
ID=21239790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU864073061A SU1380874A1 (en) | 1986-02-24 | 1986-02-24 | Method of monitoring the process of deep drilling |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1380874A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595462A (en) * | 1994-11-17 | 1997-01-21 | Western Atlas, Inc. | Machine tool coolant delivery method and apparatus |
-
1986
- 1986-02-24 SU SU864073061A patent/SU1380874A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Автоматические линии и металлорежущие станки. Экспресс-информаци . 1974, № 2, с. 30. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595462A (en) * | 1994-11-17 | 1997-01-21 | Western Atlas, Inc. | Machine tool coolant delivery method and apparatus |
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