CN110142642B - Electrical control system for numerical control milling machine safety protection - Google Patents
Electrical control system for numerical control milling machine safety protection Download PDFInfo
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- CN110142642B CN110142642B CN201910509381.9A CN201910509381A CN110142642B CN 110142642 B CN110142642 B CN 110142642B CN 201910509381 A CN201910509381 A CN 201910509381A CN 110142642 B CN110142642 B CN 110142642B
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- control system
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- numerical control
- relay
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- 238000003801 milling Methods 0.000 title claims abstract description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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
Abstract
The invention discloses an electrical control system for the safety protection of a numerical control milling machine, which comprises a safety relay, an emergency stop button, an amplifier, a numerical control system power-on relay, a numerical control system input/output (I/O) unit, a numerical control system, a Z-axis servo motor, a numerical control system power-off button, a numerical control system power-on button, a Z-axis servo motor band-type brake normally-open contact and a switching power supply. The invention can effectively solve the problems that the power supply of the numerical control system can be cut off when the emergency stop button is not pressed in the traditional numerical control milling machine electric control system, foolproof measures are not provided, and the safety of equipment is not high.
Description
Technical Field
The invention relates to an electrical control system for numerical control milling machine safety protection.
Background
At present, in the existing numerical control machine tool, a single-contact control numerical control system and a servo driving unit of an emergency stop button are generally in an emergency stop state, a band-type brake circuit of a Z-axis servo motor is not controlled through an emergency stop loop, a power supply of the numerical control system can be cut off when the emergency stop button is not pressed, foolproof measures are not taken, and safety of equipment is not high.
Disclosure of Invention
The invention aims to provide an electric control system for the safety protection of a numerical control milling machine, which solves the problems that the electric control system in county is capable of cutting off the power supply of the numerical control system when an emergency stop button is not pressed, has no foolproof measure and has low safety of equipment.
The technical scheme adopted for solving the technical problems is as follows: an electrical control system for the safety protection of a numerical control milling machine comprises a safety relay 1, an emergency stop button SB3, an amplifier 4, a numerical control system power-on relay 9, a numerical control system input/output I/O unit 3, a numerical control system 10, a Z-axis servo motor 6, a numerical control system power-off button SB1, a numerical control system power-on button SB2, a Z-axis servo motor 6 band-type brake normally open contact KA15 and a switch power source GS1,
the emergency stop button SB3 is connected with the signal input end of the safety relay 1 and is used for controlling the working state of the safety relay 1; the signal output end Y32 of the safety relay 1 is connected with the digital control system power-on relay 9, and the signal output end of the digital control system power-on relay 9 is connected with the digital control system 10 through the digital control system input/output I/O unit 3;
the safety relay 1 is provided with three groups of normally open contacts and a group of normally closed contacts, wherein the group of normally open contacts are respectively arranged between a 13 pin and a 14 pin, between a 23 pin and a 24 pin, and between a 33 pin and a 34 pin, and the group of normally closed contacts are respectively arranged between a 41 pin and a 42 pin;
the 13 pin and the 23 pin of the safety relay 1 are connected with the positive electrode of the switch source GS 1; two ends of the scram loop CX4 of the amplifier 4 are correspondingly connected with a pin 33 and a pin 34 of the safety relay 1 respectively; the power output end CZ2N of the amplifier 4, the coding control output end JF3 and the Z-axis servo motor 6 are connected;
the positive electrode input end of the band-type brake power supply of the Z-axis servo motor 6 is connected to 24 pins of the safety relay 1 through a normally open contact KA15 of the band-type brake relay of the Z-axis motor; the negative output end of the power source of the Z-axis servo motor 6 is connected with the negative electrode of the switch power source GS 1;
one end of a numerical control system power-on button SB2 is connected with one end of a numerical control system power-off button SB1 and a 14 pin of a safety relay 1, and the other end of the numerical control system power-on button SB2 is connected with the negative electrode of a switch power source GS1 through a first coil KA18 of a numerical control system power-on relay 9; the normally open contacts of the first coil KA18 are connected in parallel with the two ends of the power-on button SB2 of the numerical control system;
the second coil KA18 of the numerical control system power-on relay 9, a normally open contact of the first coil KA18 and the switch power source GS1 are connected in series;
the numerical control system 10, the normally open contact of the second coil KA17 and the switching power supply GS1 are connected in series;
the pin A1 of the safety relay 1 is connected with the positive electrode of the switching power supply GS1 through a normally open contact of the second coil KA17, and the pin A2 is connected with the negative electrode of the switching power supply GS 1;
the emergency stop button SB3 is normally closed, the numerical control system power-off button SB1 is normally open, and the numerical control system power-on button SB2 is normally closed.
Further, the emergency stop button SB3 is provided with two groups of normally closed contacts which are opened and closed simultaneously, wherein two ends of one group of normally closed contacts are respectively connected with the S21 pin and the S22 pin of the safety relay 1; one end of the other group of normally closed contacts is connected with the S11 pin of the safety relay 1, and the other end is connected with the S12 pin and the S34 pin of the safety relay 1.
Further, each of the three groups of normally open contacts of the safety relay 1 is provided with two normally open contacts connected in series, and each group of normally closed contacts is also provided with two normally closed contacts connected in series.
The invention has the beneficial effects that: the emergency stop button and the safety relay are matched to control the emergency stop of the numerical control system and the servo driving unit, the Z-axis motor is driven to lock in preference to the numerical control system to prevent the vertical shaft from sliding down, the anti-fool performance of power failure of the numerical control system is achieved, and the equipment safety and personal safety are improved. Meanwhile, two groups of normally closed contacts of the emergency stop button output two groups of signals and are connected to the two channels of the safety relay, the safety relay is controlled together by inputting signals to the two channels, the safety relay cannot work normally as long as any one group of contact signals are not connected or short circuits exist between contacts of the two channels of signals, the numerical control system and the amplifier are in an emergency stop state, and the Z-axis servo motor is locked due to the fact that the band-type brake is powered off; the above-mentioned two channels refer to two channels of a first safety channel between the S21 pin and the S22 pin and a second safety channel between the S11 pin and the S12 pin of the safety relay. Each path of output of the safety relay is composed of double contacts, any group of contacts in the double contacts have faults, the emergency stop state of the numerical control system can be ensured, and a safety insurance is added.
The invention will be described in more detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic diagram of a power-on relay for a digital control system.
Fig. 3 is a schematic diagram of a switching power supply.
Detailed Description
An embodiment, as shown in fig. 1 to 3, of an electrical control system for the safety protection of a numerically controlled milling machine, comprising a safety relay 1, an emergency stop button SB3, an amplifier 4, a numerically controlled system power-on relay 9, a numerically controlled system input/output I/O unit 3, a numerically controlled system 10, a Z-axis servo motor 6, a numerically controlled system power-off button SB1, a numerically controlled system power-on button SB2, a normally open contact KA15 of the band-type brake of the Z-axis servo motor 6, a switch source GS1,
the emergency stop button SB3 is connected with the signal input end of the safety relay 1 and is used for controlling the working state of the safety relay 1; the signal output end Y32 of the safety relay 1 is connected with the digital control system power-on relay 9, and the signal output end of the digital control system power-on relay 9 is connected with the digital control system 10 through the digital control system input/output I/O unit 3;
the safety relay 1 is provided with three groups of normally open contacts and a group of normally closed contacts, wherein the group of normally open contacts are respectively arranged between a 13 pin and a 14 pin, between a 23 pin and a 24 pin, and between a 33 pin and a 34 pin, and the group of normally closed contacts are respectively arranged between a 41 pin and a 42 pin;
the 13 pin and the 23 pin of the safety relay 1 are connected with the positive electrode of the switch source GS 1; two ends of the scram loop CX4 of the amplifier 4 are correspondingly connected with a pin 33 and a pin 34 of the safety relay 1 respectively; the power output end CZ2N of the amplifier 4, the coding control output end JF3 and the Z-axis servo motor 6 are connected;
the positive electrode input end of the band-type brake power supply of the Z-axis servo motor 6 is connected to 24 pins of the safety relay 1 through a normally open contact KA15 of the band-type brake relay of the Z-axis motor; the negative output end of the power source of the Z-axis servo motor 6 is connected with the negative electrode of the switch power source GS 1; the normally open contact KA15 of the band-type brake relay of the Z-axis motor is a common setting mode in a numerical control system and is controlled by the numerical control system, and is not specifically described herein because the normally open contact KA15 is not a main innovation point of the invention and belongs to the prior art. The brake is mainly used for controlling the Z-axis servo motor.
One end of a numerical control system power-on button SB2 is connected with one end of a numerical control system power-off button SB1 and a 14 pin of a safety relay 1, and the other end of the numerical control system power-on button SB2 is connected with the negative electrode of a switch power source GS1 through a first coil KA18 of a numerical control system power-on relay 9; the normally open contacts of the first coil KA18 are connected in parallel with the two ends of the power-on button SB2 of the numerical control system;
the second coil KA17 of the numerical control system power-on relay 9, the normally open contact of the first coil KA18 and the switch source GS1 are connected in series;
the numerical control system 10, the normally open contact of the second coil KA17 and the switching power supply GS1 are connected in series;
the pin A1 of the safety relay 1 is connected with the positive electrode of the switching power supply GS1 through a normally open contact of the second coil KA17, and the pin A2 is connected with the negative electrode of the switching power supply GS 1;
the emergency stop button SB3 is normally closed, the numerical control system power-off button SB1 is normally open, and the numerical control system power-on button SB2 is normally closed.
The emergency stop button SB3 is provided with two groups of normally closed contacts which are opened and closed simultaneously, wherein two ends of one group of normally closed contacts are respectively connected with the S21 pin and the S22 pin of the safety relay 1 to form a first safety channel; one end of the other group of normally closed contacts is connected with the S11 pin of the safety relay 1, the other end of the other group of normally closed contacts is connected with the S12 pin of the safety relay 1 to form a second safety channel, and the other group of normally closed contacts is connected with the S34 pin and is used for controlling Reset signals corresponding to Reset indicator lamps.
Each of the three groups of normally open contacts of the safety relay 1 is provided with two normally open contacts connected in series, and each group of normally closed contacts is also provided with two normally closed contacts connected in series.
The power input end of the numerical control system power-on relay 9 is connected with the switch power source GS1, and the specific structure of the numerical control system power-on relay 9 is shown in the accompanying drawing.
The pin of Y32 of the safety relay 1 is used for the numerical control system 10 to monitor its operating state, and it outputs a high level signal when the safety relay is operating normally. The safety relay 1 is PNOZ S4, and is provided with a group of indicator lamps, namely an OUT indicator lamp corresponding to a Y32 pin and used for displaying the state of an output signal, a Reset signal indicator lamp Reset indicator lamp corresponding to an S34 pin, an In1 indicator lamp corresponding to a first safety channel, and an In2 indicator lamp corresponding to a second safety channel, and is used for displaying the Power indicator lamp of the Power supply state. The switching power supply GS1 is a DC24V power supply.
Working principle:
1. when the numerical control system Power-on button SB2 is pressed, the normally open contact of the first coil KA18 is self-locked, so that the first coil KA18 of the numerical control system Power-on relay 9 is attracted, and after the normally open contact of the first coil KA18 is electrified and normally closed, the coil of the second coil KA17 is attracted, at the moment, the normally open contact of the second coil KA17 connected with the numerical control system 10 is closed, the numerical control system 10 is electrified through the switch Power source GS1, and meanwhile, a DC24V Power source is provided for the A1 pin and the A2 pin of the safety relay 1, and when the Power indicator is normally on, the Power source is normal.
2. Pressing an emergency stop button SB3, when the first safety channel is disconnected S11 and S12, the In1 is turned off, and the second safety channel is disconnected S21 and S22, and when the In2 indicator light is turned off, the safety relay 1 enters an emergency stop alarm state, and the Reset indicator light is turned off; y32 has no high level output OUT indicator lamp to be turned off, and the numerical control system 10 enters an emergency stop alarm state; the 13-14 normally open contacts of the safety relay are disconnected; the 23-24 normally open contacts are disconnected, the Z-axis servo motor 6 band-type brake, and the Z axis of the machine tool cannot work normally; the normally open contacts 33-34 are opened, and the scram loop CX4 of the amplifier 4 is opened to enter the scram alarm state.
3. Releasing the emergency stop button SB3, when the first safety channels S11 and S12 are closed, the In1 indicator lamp is normally on, and the second safety channels S21 and S22 are closed, and after the In2 indicator lamp is normally on, the safety relay 1 works normally: the Y32 pin of the safety relay 1 outputs a high-level OUT lamp to be normally on until the numerical control system input/output I/O unit 3 is turned on, and the numerical control system 10 releases the scram alarm to enter a reset state; the normally open contacts 13-14 of the safety relay 1 are closed, at the moment, the power-off button SB1 of the numerical control system is pressed, and the power-on relay 9 of the numerical control system and the numerical control system 10 cannot be powered off, so that misoperation can be prevented; the normally open contacts 23-24 of the safety relay 1 are closed, so that preparation is made for releasing the band-type brake of the Z-axis servo motor 6, when the numerical control system does not give an alarm, the normally open contact KA15 of the band-type brake of the Z-axis servo motor 6 of the on-power relay 9 of the numerical control system is closed and output, and the Z-axis of the machine tool can work normally; and 33-34, the normally open contact is closed, so that the CX4 scram loop of the amplifier 4 is closed, and the amplifier 4 releases the scram and enters a ready working state.
The invention is described above by way of example with reference to the accompanying drawings. It will be clear that the invention is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present invention; or the invention is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the invention.
Claims (3)
1. An electric control system for numerical control milling machine safety protection is characterized in that: comprises a safety relay (1), an emergency stop button (SB 3), an amplifier (4), a numerical control system power-on relay (9), a numerical control system input/output I/O unit (3), a numerical control system (10), a Z-axis servo motor (6), a numerical control system power-off button (SB 1), a numerical control system power-on button (SB 2), a Z-axis servo motor (6) band-type brake normally open contact (KA 15) and a switch power source (GS 1),
the emergency stop button (SB 3) is connected with the signal input end of the safety relay (1) and is used for controlling the working state of the safety relay (1); the signal output end (Y32) of the safety relay (1) is connected with the digital control system power-on relay (9), and the signal output end of the digital control system power-on relay (9) is connected with the digital control system (10) through the digital control system input/output I/O unit (3);
the safety relay (1) is provided with three groups of normally open contacts and a group of normally closed contacts, wherein the group of normally open contacts are respectively arranged between a 13 pin and a 14 pin, between a 23 pin and a 24 pin, and between a 33 pin and a 34 pin, and the group of normally closed contacts are respectively arranged between a 41 pin and a 42 pin;
the 13 pin and the 23 pin of the safety relay (1) are connected with the positive electrode of the switch power supply (GS 1); two ends of an emergency stop loop (CX 4) of the amplifier (4) are correspondingly connected with a pin 33 and a pin 34 of the safety relay (1) respectively; the power output end (CZ 2N) of the amplifier (4), the coding control output end (JF 3) and the Z-axis servo motor (6) are connected;
the positive electrode input end of the band-type brake power supply of the Z-axis servo motor (6) is connected to 24 pins of the safety relay (1) through a normally open contact (KA 15) of the band-type brake relay of the Z-axis motor; the negative electrode output end of the power source of the Z-axis servo motor (6) is connected with the negative electrode of the switch power source (GS 1);
one end of a numerical control system power-on button (SB 2) is connected with one end of a numerical control system power-off button (SB 1) and a 14 pin of a safety relay (1), and the other end of the numerical control system power-on button (SB 2) is connected with the negative electrode of a switch power source (GS 1) through a first coil (KA 18) of a numerical control system power-on relay (9); the normally open contacts of the first coil (KA 18) are connected in parallel to the two ends of a power-on button (SB 2) of the numerical control system;
the second coil (KA 17) of the numerical control system power-on relay (9), the normally open contact of the first coil (KA 18) and the switching power supply (GS 1) are connected in series;
the numerical control system (10), a normally open contact of the second coil (KA 17) and the switch power supply (GS 1) are connected in series;
the pin A1 of the safety relay (1) is connected with the positive electrode of the switch power supply (GS 1) through a normally open contact of the second coil (KA 17), and the pin A2 is connected with the negative electrode of the switch power supply (GS 1);
the emergency stop button (SB 3) is normally closed, the numerical control system power-off button (SB 1) is normally open, and the numerical control system power-on button (SB 2) is normally closed.
2. The electrical control system for numerically controlled fraise machine safety protection according to claim 1, wherein: the emergency stop button (SB 3) is provided with two groups of normally closed contacts which are opened and closed simultaneously, wherein two ends of one group of normally closed contacts are respectively connected with an S21 pin and an S22 pin of the safety relay (1); one end of the other group of normally closed contacts is connected with the S11 pin of the safety relay (1), and the other end is connected with the S12 pin and the S34 pin of the safety relay (1).
3. The electrical control system for numerically controlled milling machine safety protection according to claim 1 or 2, wherein: each of the three groups of normally open contacts of the safety relay (1) is provided with two normally open contacts connected in series, and each group of normally closed contacts is also provided with two normally closed contacts connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509381.9A CN110142642B (en) | 2019-06-13 | 2019-06-13 | Electrical control system for numerical control milling machine safety protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509381.9A CN110142642B (en) | 2019-06-13 | 2019-06-13 | Electrical control system for numerical control milling machine safety protection |
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| CN110142642A CN110142642A (en) | 2019-08-20 |
| CN110142642B true CN110142642B (en) | 2024-02-27 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05143132A (en) * | 1991-11-19 | 1993-06-11 | Amada Co Ltd | Safety device for nc machine tool |
| CN1623744A (en) * | 2003-12-03 | 2005-06-08 | 发那科株式会社 | Emergency stop circuit |
| JP2008046710A (en) * | 2006-08-11 | 2008-02-28 | Jtekt Corp | Circuit board for input/output control part |
| CN201259624Y (en) * | 2008-03-31 | 2009-06-17 | 德阳市同佳环保科技有限责任公司 | PLC controlled ray chamber safety interlocking system |
| RU2510555C1 (en) * | 2012-10-05 | 2014-03-27 | Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации | Machine protective device |
| CN204480006U (en) * | 2014-12-29 | 2015-07-15 | 武汉重型机床集团有限公司 | Numerically-controlled machine safe sudden stop device |
| WO2018155423A1 (en) * | 2017-02-21 | 2018-08-30 | オムロン株式会社 | Motor control device and motor control system |
| CN208239873U (en) * | 2018-06-07 | 2018-12-14 | 合肥正帆电子材料有限公司 | A kind of safety return circuit system |
| CN210060578U (en) * | 2019-06-13 | 2020-02-14 | 安徽新诺精工股份有限公司 | Electrical control system for safety protection of numerical control milling machine |
-
2019
- 2019-06-13 CN CN201910509381.9A patent/CN110142642B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05143132A (en) * | 1991-11-19 | 1993-06-11 | Amada Co Ltd | Safety device for nc machine tool |
| CN1623744A (en) * | 2003-12-03 | 2005-06-08 | 发那科株式会社 | Emergency stop circuit |
| JP2008046710A (en) * | 2006-08-11 | 2008-02-28 | Jtekt Corp | Circuit board for input/output control part |
| CN201259624Y (en) * | 2008-03-31 | 2009-06-17 | 德阳市同佳环保科技有限责任公司 | PLC controlled ray chamber safety interlocking system |
| RU2510555C1 (en) * | 2012-10-05 | 2014-03-27 | Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации | Machine protective device |
| CN204480006U (en) * | 2014-12-29 | 2015-07-15 | 武汉重型机床集团有限公司 | Numerically-controlled machine safe sudden stop device |
| WO2018155423A1 (en) * | 2017-02-21 | 2018-08-30 | オムロン株式会社 | Motor control device and motor control system |
| CN208239873U (en) * | 2018-06-07 | 2018-12-14 | 合肥正帆电子材料有限公司 | A kind of safety return circuit system |
| CN210060578U (en) * | 2019-06-13 | 2020-02-14 | 安徽新诺精工股份有限公司 | Electrical control system for safety protection of numerical control milling machine |
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Effective date of registration: 20240131 Address after: No. 19-3001, HSBC Plaza, No. 269, Mount Huangshan Road, Huizhou District, Mount Huangshan City, Anhui Province, 245000 Applicant after: Anhui Zhuopu Intelligent Equipment Co.,Ltd. Country or region after: China Address before: 245000 No. 51, West Ring Road, Yansi Town, Huizhou District, Huangshan City, Anhui. Applicant before: ANHUI SINO SEIKO CO.,LTD. Country or region before: China |
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