CN108637761A - Magnechuck fixture safety guard and circuit and process equipment control circuit - Google Patents
Magnechuck fixture safety guard and circuit and process equipment control circuit Download PDFInfo
- Publication number
- CN108637761A CN108637761A CN201810587998.8A CN201810587998A CN108637761A CN 108637761 A CN108637761 A CN 108637761A CN 201810587998 A CN201810587998 A CN 201810587998A CN 108637761 A CN108637761 A CN 108637761A
- Authority
- CN
- China
- Prior art keywords
- fixture
- control circuit
- magnechuck
- normally opened
- opened contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 description 8
- 239000004576 sand Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005259 measurement 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
- B23Q3/154—Stationary devices
- B23Q3/1543—Stationary devices using electromagnets
-
- 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
-
- 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
- B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
- B23Q11/0092—Safety devices protecting the operator, e.g. against accident or noise actuating braking or stopping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention provides a kind of magnechuck fixture safety guards and circuit and process equipment control circuit, device to include：Undercurrent relay, the relay coil of undercurrent relay is series in the electromagnetic control circuit of magnechuck, the normally opened contact of undercurrent relay is series in process equipment control circuit, when the electric current for flowing through undercurrent relay coil in electromagnetic control circuit is more than its setting valve, normally opened contact is closed, and the otherwise normally opened contact disconnection makes process equipment control circuit be stopped.The device carries out safeguard protection by using undercurrent relay, and device and circuit structure are simple, easy to implement, and can be arranged as required to undercurrent setting valve, is suitable for different types of magnechuck fixture, and practicability is preferable.
Description
Technical field
The present invention relates to the security protection technology field of magnechuck fixture, more particularly to a kind of magnechuck fixture safety
Protective device and circuit and process equipment control circuit.
Background technology
The function of magnechuck fixture is that the sucker generates magnetic by electricity, and then metal class workpiece is firmly adsorbed on electromagnetism
On sucker, cutter or abrasive grinding wheel above can be processed this workpiece, if magnechuck loses magnetism, metal
Class workpiece cannot be fixed, and cutter or abrasive grinding wheel will be stopped, and otherwise workpiece can fly out and hurt people.Actually make
With middle discovery, the coil open circuit in the DC voltage out of power of the coil offer in magnechuck or magnechuck is given sometimes
, therefore coil of no electric current out of magnechuck is flowed through, would not generate magnetic force, but cutter above or grinding sand
Wheel still works, and workpiece will fly out and cause accident at this time.
Specifically, by taking grinding machine (unprotect device) as an example, Fig. 1 is a kind of existing grinding wheel motor control circuit, Fig. 2
For a kind of corresponding magnechuck electromagnetic control circuit, Fig. 3 is corresponding grinding wheel motor main circuit, the operation principle of Fig. 1 and Fig. 3
It is：After pressing the grinding wheel motor starting button SB in control circuit Fig. 1, the KM1 coils of A.C. contactor obtain it is electric, with starting button
The KM1 normally opened contacts of SB parallel connections are closed self-locking, and self-locking is meant even if unclamping SB buttons at this time, KM1 coils still it is electric, together
When Fig. 3 grinding wheel motor main circuits in tri- normally opened contacts of KM1 be closed, grinding wheel motor M1 obtains three-phase alternating current 380V and starts to revolve
Turn, workpiece is ground, the QF in wherein Fig. 3 is breaker, for carrying out open-phase protection and overloading to protect to grinding wheel motor M1
Shield.The operation principle of magnechuck electromagnetic control circuit in Fig. 2 is：To in magnechuck fixture (workbench 11) in Fig. 2
Electromagnetic coil 12 lead to 100V direct currents, will magnechuck fixture (workbench 11) surface generate magnetic force, to adsorb
Then metal class workpiece is restarted above-mentioned grinding wheel motor work, is ground to metal class workpiece.If electric in this process
Unexpected coil of no electric current out of magnechuck flows through in magnetic-disc, can not generate the magnetic force of adsorbing metal workpiece, and grinding wheel
It is still rotating, is then be easy to causeing the accident that workpiece flies out.
Invention content
The purpose of the present invention is to provide a kind of magnechuck fixture safety guards and circuit to be controlled with process equipment
Circuit, when being easy to happen unexpected coil of no electric current out of magnechuck to solve existing magnechuck fixture and flow through, work
Part, which flies out, causes unexpected problem.
To achieve the above object, the present invention provides a kind of magnechuck fixture safety guards, including：Undercurrent after
The relay coil of electric appliance, the undercurrent relay is series in the electromagnetic control circuit of magnechuck, the undercurrent after
The normally opened contact of electric appliance is series in process equipment control circuit, when the electricity for flowing through relay coil in the electromagnetic control circuit
When stream is more than its setting valve, the normally opened contact is closed, and the otherwise normally opened contact disconnection makes process equipment control circuit stop
Work.
Preferably, the electromagnetic control circuit further includes concatenated DC voltage and fixture electromagnetic coil, the fixture electricity
Magnetic coil is installed in the workbench of magnechuck fixture, for generating the magnetic force for adsorbing metal works to be added, institute after powered up
State DC voltage for be the fixture solenoid.
Preferably, the process equipment control circuit further include driving power, start button, A.C. contactor are normally opened touches
The normally opened contact and ac contactor coil of point, undercurrent relay, the start button and A.C. contactor normally opened contact are simultaneously
It connects again with the driving power, the normally opened contact of undercurrent relay and ac contactor coil after connection..
Preferably, the process equipment control circuit is the control circuit of cutting tool or abrasive grinding wheel.
Preferably, any one in the model JL14-ZQ series of products of the undercurrent relay, the setting valve
It is set as 1A.
The present invention also provides a kind of magnechuck fixture safety protective circuits, including concatenated DC voltage and fixture electricity
The relay coil of magnetic coil and undercurrent relay, the fixture electromagnetic coil are installed on the workbench of magnechuck fixture
In, for generating the magnetic force for adsorbing metal works to be added after powered up, the DC voltage is used to be the fixture electromagnetic coil
Power supply, when the electric current for flowing through relay coil in the electromagnetic control circuit is more than its setting valve, the normally opened contact is closed,
Otherwise the normally opened contact disconnects.
The present invention also provides a kind of process equipment control circuits of magnechuck fixture, including：Driving power, start
The normally opened contact and ac contactor coil of button, A.C. contactor normally opened contact, undercurrent relay, the start button with
After A.C. contactor normally opened contact parallel connection again with the driving power, the normally opened contact of undercurrent relay and A.C. contactor line
Circle series connection, when flowing through the electric current of relay coil of the undercurrent relay more than its setting valve, the normally opened contact closes
It closes, the otherwise normally opened contact disconnection makes process equipment control circuit be stopped.
Magnechuck fixture safety guard and circuit provided by the invention have following with process equipment control circuit
Advantageous effect：
When due to only having magnechuck fixture (workbench) to have electric current, magnetic can be just generated in coil, undercurrent at this time
The coil of relay just it is electric so that normally opened contact action and is closed, process equipment control circuit be powered make process equipment electricity
Machine could start.On the contrary, if magnechuck fixture (workbench) no current or electric current are smaller, undercurrent relay restores normal
State, normally opened contact disconnect, so that processing motor is powered down and is stopped, play a protective role.The device and circuit structure
Simply, easy to implement, and it can be arranged as required to undercurrent setting valve, it is suitable for different types of magnechuck fixture, it is practical
Property is preferable.
Description of the drawings
Fig. 1 is a kind of existing grinding wheel motor control circuit；
Fig. 2 is a kind of existing magnechuck electromagnetic control circuit；
Fig. 3 is a kind of grinding wheel motor main circuit corresponding with Fig. 1, Fig. 2；
Fig. 4 is a kind of plus protection grinding wheel motor control circuit that the preferred embodiment of the present invention provides；
Fig. 5 is a kind of plus protection magnechuck electromagnetic control circuit that the preferred embodiment of the present invention provides.
Label declaration：11- magnechucks fixture (workbench 11)；12- electromagnetic coils 12.
Specific implementation mode
Below with reference to the attached drawing of the present invention, technical solution in the embodiment of the present invention carries out clear, complete description
And discussion, it is clear that as described herein is only a part of example of the present invention, is not whole example, based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, belongs to protection scope of the present invention.
For the ease of the understanding to the embodiment of the present invention, make further by taking specific embodiment as an example below in conjunction with attached drawing
It illustrates, and each embodiment does not constitute the restriction to the embodiment of the present invention.
A kind of magnechuck fixture safety guard is present embodiments provided, which includes：Undercurrent relay.It owes
Electric current relay is a kind of relay, and when being more than its setting valve by the electric current of the relay coil, undercurrent relay is just
It being attracted, normally opened contact is just closed, when the electric current by the relay coil is decreased below its setting valve, undercurrent relay
With regard to release, normally opened contact restores to disconnect, thus referred to as undercurrent relay.Undercurrent setting value can generally be set by panel button
It sets, setting ranging from measurement range, control accuracy is high.General panel is additionally provided with undercurrent indicator light, is internally provided with alarm bee
Ring device.
The relay coil of the undercurrent relay of the present embodiment is series in the electromagnetic control circuit of magnechuck, should
The normally opened contact of undercurrent relay is series in process equipment control circuit, when flowing through relay coil in electromagnetic control circuit
Electric current be more than its setting valve when, normally opened contact be closed, otherwise normally opened contact disconnection so that process equipment control circuit is stopped.
Wherein, electromagnetic control circuit further includes concatenated DC voltage and fixture electromagnetic coil, the fixture electromagnetic coil
It is installed in the workbench of magnechuck fixture, the magnetic force for generating absorption metal works to be added after powered up, and direct current
Pressure is for being the fixture solenoid.And process equipment control circuit further includes driving power, start button, exchange connects
The normally opened contact and ac contactor coil of tentaculum normally opened contact, undercurrent relay, start button are normally opened with A.C. contactor
It connects again with the driving power, the normally opened contact of undercurrent relay and ac contactor coil after contact shunt.
The process equipment control circuit of the present embodiment is the control circuit of cutting tool or abrasive grinding wheel, for controlling respectively
And the corresponding cutting tool of driving or abrasive grinding wheel are cut or are ground to the metal works on magnechuck fixture.
The present embodiment additionally provides a kind of magnechuck fixture safety protective circuit, including concatenated DC voltage and fixture
The relay coil of electromagnetic coil and undercurrent relay, fixture electromagnetic coil are installed in the workbench of magnechuck fixture,
For generating the magnetic force for adsorbing metal works to be added after powered up, DC voltage is used to be the fixture solenoid, when
When flowing through the electric current of relay coil in electromagnetic control circuit more than its setting valve, normally opened contact is closed, and otherwise normally opened contact is disconnected
It opens.Wherein, normally opened contact can be arranged in series as needed in the process equipment control circuit for being processed to metal works
In.
The present embodiment additionally provides a kind of process equipment control circuit of magnechuck fixture, including：Driving power, open
Dynamic button, A.C. contactor normally opened contact, undercurrent relay normally opened contact and ac contactor coil, start button with exchange
It connects again with driving power, undercurrent relay normally opened contact and ac contactor coil after contactor normally opened contact parallel connection, when
When flowing through the electric current of the relay coil of undercurrent relay more than its setting valve, the normally opened contact is closed, otherwise described normal
Opening contact and disconnecting makes process equipment control circuit be stopped.Wherein, relay coil can be arranged in series as needed in for
In the control circuit of magnechuck fixture.
Any one in the model JL14-ZQ series of products of the undercurrent relay of above-described embodiment, setting valve is set
For 1A.
The operation principle of undercurrent relay, generally when circuit works normally, the armature and iron core of undercurrent relay
Always it is to be attracted.Only when electric current is brought down below setting valve, undercurrent relay release sends out signal, to change electricity
The state on road.The attraction electric current of undercurrent relay is generally 0.3~0.65 times of coil rating electric current, and release current is specified
0.1~0.2 times of electric current.
With reference to a concrete application example, to the work of magnechuck fixture safety guard provided in an embodiment of the present invention
It is illustrated as process：
Corresponding to the prior art that attached drawing 1-3 is provided, here still by taking grinding machine (having protective device) as an example, Fig. 4 is to add
The grinding wheel motor control circuit of protective device, Fig. 5 are the magnechuck electromagnetic control circuit for adding protective device.Wherein, this implementation
The relay coil and normally opened contact of the undercurrent relay for the magnechuck fixture safety guard that example provides are respectively set
In magnechuck electromagnetic control circuit and grinding wheel motor control circuit.Wherein, Fig. 4 is gone here and there on the basis of 1 application examples of artwork
The normally opened contact KA, Fig. 5 for joining a undercurrent relay are a undercurrent relays of having connected on the basis of 2 application examples of artwork
Coil KA.
The concrete operating principle of the device is：When the electromagnetic coil 12 of the magnechuck fixture (workbench 11) in Fig. 5 has
Electric current flows through, then the coil KA of undercurrent relay just it is electric, then the undercurrent relay in Fig. 4 contact KA be closed, this
When press starting button SB after, KM1 coils just it is electric, grinding wheel motor M1 in Fig. 3 just electric rotation, once electromagnetism is inhaled in Fig. 5
12 no electric current of electromagnetic coil of plate clamp (workbench 11) flows through, the coil KA dead electricity of undercurrent relay, then in Fig. 4
The contact KA of undercurrent relay restores to disconnect, KM1 coil losing electricities, and the grinding wheel motor M1 stallings in Fig. 3 play a protective role.
Only have magnechuck fixture (workbench) to have electric current in this way, that is, generates magnetic, undercurrent relay KA is just acted, sand
Turbin generator could start.On the contrary, if magnechuck fixture (workbench) no current or electric current are smaller, undercurrent relay KA is extensive
Multiple normality, grinding wheel motor is stopped, to play a protective role.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those skilled in the art in the technical scope disclosed by the present invention, to deformation or replacement that the present invention is done, should be covered
Within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the scope of the claims.
Claims (7)
1. a kind of magnechuck fixture safety guard, which is characterized in that including：Undercurrent relay, the undercurrent after
The relay coil of electric appliance is series in the electromagnetic control circuit of magnechuck, the normally opened contact series connection of the undercurrent relay
In process equipment control circuit, when the electric current for flowing through undercurrent relay coil in the electromagnetic control circuit is adjusted more than it
When value, the normally opened contact is closed, and the otherwise normally opened contact disconnection makes process equipment control circuit be stopped.
2. magnechuck fixture safety guard according to claim 1, which is characterized in that the electromagnetic control circuit
Further include concatenated DC voltage and fixture electromagnetic coil, the fixture electromagnetic coil is installed on the workbench of magnechuck fixture
In, for generating the magnetic force for adsorbing metal works to be added after powered up, the DC voltage is used to be the fixture electromagnetic coil
Power supply.
3. magnechuck fixture safety guard according to claim 1, which is characterized in that the process equipment control
Circuit further includes that driving power, start button, A.C. contactor normally opened contact, the normally opened contact of undercurrent relay and exchange connect
Tentaculum coil, after the start button is in parallel with A.C. contactor normally opened contact again with the driving power, undercurrent relay
Normally opened contact and ac contactor coil series connection.
4. magnechuck fixture safety guard according to claim 1 or 3, which is characterized in that the process equipment
Control circuit is the control circuit of cutting tool or abrasive grinding wheel.
5. magnechuck fixture safety guard according to claim 1, which is characterized in that the undercurrent relay
Model JL14-ZQ series of products in any one, the setting valve is set as 1A.
6. a kind of magnechuck fixture safety protective circuit, which is characterized in that including concatenated DC voltage and fixture electromagnetic wire
The relay coil of circle and undercurrent relay, the fixture electromagnetic coil are installed in the workbench of magnechuck fixture, are used
In generating the magnetic force for adsorbing metal works to be added after powered up, the DC voltage is used to be the fixture solenoid,
When the electric current for flowing through undercurrent relay coil in the electromagnetic control circuit is more than its setting valve, the normally opened contact closes
It closes, otherwise the normally opened contact disconnects.
7. a kind of process equipment control circuit of magnechuck fixture, which is characterized in that including：Driving power, start button, friendship
Flow the normally opened contact and ac contactor coil of contactor normally opened contact, undercurrent relay, the start button connects with exchanging
After tentaculum normally opened contact parallel connection again with the driving power, the normally opened contact of undercurrent relay and ac contactor coil string
Connection, when the electric current for flowing through the undercurrent relay coil is more than its setting valve, the normally opened contact is closed, otherwise described normal
Opening contact and disconnecting makes process equipment control circuit be stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810587998.8A CN108637761A (en) | 2018-06-08 | 2018-06-08 | Magnechuck fixture safety guard and circuit and process equipment control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810587998.8A CN108637761A (en) | 2018-06-08 | 2018-06-08 | Magnechuck fixture safety guard and circuit and process equipment control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108637761A true CN108637761A (en) | 2018-10-12 |
Family
ID=63752020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810587998.8A Pending CN108637761A (en) | 2018-06-08 | 2018-06-08 | Magnechuck fixture safety guard and circuit and process equipment control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108637761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401487A (en) * | 2022-08-11 | 2022-11-29 | 同济大学 | Cutting process scram device based on electro-magnet control effect |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4647268A (en) * | 1976-11-16 | 1987-03-03 | Emag Maschinenfabrik Gmbh | Part handling device |
| US5267119A (en) * | 1991-05-31 | 1993-11-30 | Electro-Matic Products Co. | Electric permanent magnet chuck control |
| HK1153698A1 (en) * | 2008-09-19 | 2012-04-05 | Boeing Co | Electromagnetic clamping device |
| CN105252410A (en) * | 2015-09-15 | 2016-01-20 | 芜湖日升重型机床有限公司 | Flat grinder and electric control system thereof |
| CN107984391A (en) * | 2017-12-30 | 2018-05-04 | 襄阳福坦铁路轴承有限公司 | A kind of power supply device of grinding machine |
| CN208945697U (en) * | 2018-06-08 | 2019-06-07 | 苏州工业职业技术学院 | Magnechuck fixture safety guard and circuit and process equipment control circuit |
-
2018
- 2018-06-08 CN CN201810587998.8A patent/CN108637761A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4647268A (en) * | 1976-11-16 | 1987-03-03 | Emag Maschinenfabrik Gmbh | Part handling device |
| US5267119A (en) * | 1991-05-31 | 1993-11-30 | Electro-Matic Products Co. | Electric permanent magnet chuck control |
| HK1153698A1 (en) * | 2008-09-19 | 2012-04-05 | Boeing Co | Electromagnetic clamping device |
| CN105252410A (en) * | 2015-09-15 | 2016-01-20 | 芜湖日升重型机床有限公司 | Flat grinder and electric control system thereof |
| CN107984391A (en) * | 2017-12-30 | 2018-05-04 | 襄阳福坦铁路轴承有限公司 | A kind of power supply device of grinding machine |
| CN208945697U (en) * | 2018-06-08 | 2019-06-07 | 苏州工业职业技术学院 | Magnechuck fixture safety guard and circuit and process equipment control circuit |
Non-Patent Citations (2)
| Title |
|---|
| 李丽;: "巧改M7120平面磨床电磁吸盘控制线路", 机床电器, vol. 1, no. 03, pages 202 - 206 * |
| 黄南雄: "M7120 平面磨床电气控制原理分析、接线、故障分析", 科技创新, pages 178 - 179 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401487A (en) * | 2022-08-11 | 2022-11-29 | 同济大学 | Cutting process scram device based on electro-magnet control effect |
| CN115401487B (en) * | 2022-08-11 | 2024-04-23 | 同济大学 | Cutting machining scram device based on electromagnet control effect |
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| PB01 | Publication | ||
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Application publication date: 20181012 |