CN108555653A - A kind of milling machine X-axis brake protection device - Google Patents
A kind of milling machine X-axis brake protection device Download PDFInfo
- Publication number
- CN108555653A CN108555653A CN201810530292.8A CN201810530292A CN108555653A CN 108555653 A CN108555653 A CN 108555653A CN 201810530292 A CN201810530292 A CN 201810530292A CN 108555653 A CN108555653 A CN 108555653A
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- China
- Prior art keywords
- contactor
- time relay
- milling machine
- relay
- closed contact
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Links
- 238000003801 milling Methods 0.000 title claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 238000000819 phase cycle Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- 230000001681 protective effect Effects 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
- B23Q5/58—Safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
The present invention discloses a kind of milling machine X-axis brake protection device; it include the major loop being made of with milling machine X-axis motor the first A.C. contactor, the second A.C. contactor, electrothermal relay, D.C. contactor, DC injection braking power supply, and the control loop being made of the auxiliary contact of positive switch, reverser, first time relay, second time relay, the auxiliary contact of the first A.C. contactor, the second A.C. contactor；The braking that first time relay controls milling machine X-axis motor stops, second time relay is introduced on this basis, even if operative employee is frequently changed operation direction, second time relay also can while changing direction the constrained delay preset time, the switch operation of operative employee just works after this preset time, to avoid operative employee's apparatus failure caused by frequent switching operates direction, maintenance cost is reduced, the service life of equipment is extended.
Description
Technical field
The present invention relates to milling machine technical field, specifically a kind of milling machine X-axis brake protection device.
Background technology
Milling machine refers to a kind of lathe being processed to a variety of surfaces of workpiece with milling cutter, including three X-axis, Y-axis and Z axis directions
Movement.Currently, the X-axis movement of most of milling machines all realizes that frictional force is small, movement is fast, so making by ball-screw
Dynamic generally all to introduce dynamic braking process when stopping, it is excellent that the mode of this braking has that circuit is simple, at low cost, debugging is simple etc.
Point.
Currently, operative employee carries out the forward direction and reverse movement of X-axis using control stick, it is forward and reverse in switching, it is necessary to make behaviour
Vertical pole is parked in intermediate position of rest, wait brakings stop after, then to reverse operation move.But operative employee is past in operation
It is past to be frequently changed operation direction according to operating instruction, will produce problems in this way：One, braking contactor contact by
Easily contact is burnt in frequently braking, striking sparks in the short time；Two, motor is frequently added direct current electric braking and be easy to cause in a short time
Easily fever, seriously burns motor；Three, motor positive and inverse frequently brakes easy arc short-circuit, and electric tripping is matched in workshop when serious；Four, electric
The machine service life is reduced.
Invention content
The purpose of the present invention is to provide a kind of milling machine X-axis brake protection device, which can avoid operative employee because of frequency
Apparatus failure caused by numerous handover operation direction reduces maintenance cost, extends the service life of equipment.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of milling machine X-axis brake protection device, including the first A.C. contactor, the second A.C. contactor, electrothermal relay, direct current connect
Tentaculum, DC injection braking power supply, positive switch, reverser, first time relay and second time relay；First exchange connects
Tentaculum is connect with the main contacts of the second A.C. contactor by phase negative-phase sequence, the input terminal connection three of two A.C. contactor main contacts
Phase power supply, output end are sequentially connected electrothermal relay and milling machine X-axis motor, and the input terminal of D.C. contactor main contacts connects DC system
Dynamic power supply, output end connect milling machine X-axis motor；
The normally-closed contact of D.C. contactor, the on-delay normally-closed contact of second time relay, positive switch, the second exchange connect
The auxiliary normally-closed contact of tentaculum and the coil of the first A.C. contactor are connected to after being sequentially connected in series between firewire and zero curve；Reversely open
The coil of pass, the auxiliary normally-closed contact of the first A.C. contactor and the second A.C. contactor is connected in parallel on positive switch after being sequentially connected in series
With the both ends of the first ac contactor coil；The auxiliary normally-closed contact of first A.C. contactor, the auxiliary of the second A.C. contactor
The coil of normally-closed contact, the power cut off delay normally opened contact of first time relay and D.C. contactor is connected to fire after being sequentially connected in series
Between line and zero curve；The coil both ends of first time relay and second time relay are separately connected firewire and zero curve；First
The control terminal of first time relay, direct current are connected after A.C. contactor is in parallel with the auxiliary normally opened contact of the second A.C. contactor
The auxiliary normally opened contact of contactor connects the control terminal of second time relay；The preset time of first time relay is less than the
The preset time of two time relays.
The invention has the advantages that the braking of first time relay control milling machine X-axis motor stops, on this basis
Second time relay is introduced, even if operative employee can change direction if being frequently changed operation second time relay of direction
While the constrained delay preset time, the switch operation of operative employee just works after this preset time, to avoid operating
Work apparatus failure caused by frequent switching operates direction, reduces maintenance cost, extends the service life of equipment.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples：
Fig. 1 is the electronic schematic diagram of the present invention.
Specific implementation mode
As shown in Figure 1, the present invention provides a kind of milling machine X-axis brake protection device, including the first A.C. contactor KM1, the
Two A.C. contactor KM2, electrothermal relay FR, D.C. contactor KM3, DC injection braking power supply DC, positive switch SQ7, reverser
SQ8, first time relay KT1 and the second time relay KT2；First A.C. contactor KM1 and the second A.C. contactor KM2
Main contacts connected by phase negative-phase sequence, input terminal connection three phase mains, the output end of two A.C. contactor main contacts connect successively
Connect electrothermal relay FR and milling machine X-axis motor M, the input terminal connection DC injection braking power supply DC of D.C. contactor KM3 main contacts, output
End connection milling machine X-axis motor M；
The normally-closed contact of D.C. contactor KM3, the on-delay normally-closed contact of the second time relay KT2, positive switch SQ7,
The auxiliary normally-closed contact of second A.C. contactor KM2 and the coil of the first A.C. contactor KM1 are connected to firewire after being sequentially connected in series
Between L1 and zero curve N；Reverser SQ8, the auxiliary normally-closed contact of the first A.C. contactor KM1 and the second A.C. contactor KM2
Coil be sequentially connected in series after be connected in parallel on the both ends of forward direction switch SQ7 and the first A.C. contactor KM1 coils；First A.C. contactor
The power cut off delay of the auxiliary normally-closed contact of KM1, the auxiliary normally-closed contact of the second A.C. contactor KM2, first time relay KT1
The coil of normally opened contact and D.C. contactor KM3 are connected to after being sequentially connected in series between firewire L1 and zero curve N；First time relay
The coil both ends of KT1 and the second time relay KT2 are separately connected firewire L1 and zero curve N；First A.C. contactor KM1 and second
The control terminal of first time relay KT1, D.C. contactor KM3 are connected after the auxiliary normally opened contact parallel connection of A.C. contactor KM2
Auxiliary normally opened contact connect the second time relay KT2 control terminal.
The entrance of firewire L1 is also in series with the normally-closed contact of total control switch SB1 and electrothermal relay FR, forward direction switch SQ7 with
Positive X-axis limit switch SQ1, positive Y-axis limit switch are also in series between the auxiliary normally-closed contact of second A.C. contactor KM2
It is also gone here and there between SQ3 and forward direction Z axis limit switch SQ5, reverser SQ8 and the auxiliary normally-closed contact of the first A.C. contactor KM1
It is associated with reversed X-axis limit switch SQ2, reversed Y-axis limit switch SQ4 and reversed Z axis limit switch SQ6.
It powers to control loop in use, pressing total control switch SB1 first, swinging control stick makes forward direction switch SQ7 close
It closes, so that the first A.C. contactor KM1 coils is obtained electric, main contacts and be closed, the movement of milling machine X-axis motor M forward directions；When control stick is flapped toward instead
During switch SQ8, positive switch SQ7 is disconnected, the first A.C. contactor KM1 coil losing electricities, the first A.C. contactor KM1
Auxiliary normally opened contact disconnect, to trigger first time relay KT1 work, the power cut off delay of first time relay KT1
It is electric that normally opened contact closure makes the coil of D.C. contactor KM3 obtain, and the main contacts closure of D.C. contactor KM3 makes DC injection braking power supply
DC, which provides braking power, enables milling machine X-axis motor M brakings stop, and the preset time of the present embodiment first time relay KT1 is 2s,
At the same time, D.C. contactor KM3 auxiliary normally opened contact be closed, to triggering the second time relay KT2, the second time after
The on-delay normally-closed contact of electric appliance KT2 is opened, to disconnect the power supply of forward direction switch SQ7 and branch where reverser SQ8；
At this point, even if operative employee does not press regulation, control stick is swung into reverser SQ8, the first A.C. contactor KM2 coils
It will not obtain electric, milling machine X-axis motor M will not start, only after the arrival of the second time relay KT2 preset times, when second
Between the on-delay normally-closed contact of relay KT2 re-close, just again to the operation of forward direction switch SQ7 or reverser SQ8
Effectively, the preset time of second time relay of the present embodiment KT2 is 3s.
By this protective device so that operative employee is not superficial phenomenon by guidelines, and Operation switch does not make circuit true
Positive work, avoids milling machine X-axis motor M frequently forward and reverse startups, avoids operative employee's electricity caused by frequent switching operates direction
Device failure reduces maintenance cost, extends the service life of equipment.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form；Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure above
Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore, every content without departing from technical solution of the present invention, according to the technical essence of the invention does above example
Any simple modification, equivalent replacement, equivalence changes and modification, still fall within technical solution of the present invention protection in the range of.
Claims (1)
1. a kind of milling machine X-axis brake protection device, which is characterized in that including the first A.C. contactor, the second A.C. contactor, heat
Relay, D.C. contactor, DC injection braking power supply, positive switch, reverser, first time relay and the second time relay
Device；First A.C. contactor is connect with the main contacts of the second A.C. contactor by phase negative-phase sequence, two A.C. contactor main contacts
Input terminal connection three phase mains, output end be sequentially connected electrothermal relay and milling machine X-axis motor, D.C. contactor main contacts it is defeated
Enter end connection DC injection braking power supply, output end connects milling machine X-axis motor；
The normally-closed contact of D.C. contactor, the on-delay normally-closed contact of second time relay, positive switch, the second exchange connect
The auxiliary normally-closed contact of tentaculum and the coil of the first A.C. contactor are connected to after being sequentially connected in series between firewire and zero curve；Reversely open
The coil of pass, the auxiliary normally-closed contact of the first A.C. contactor and the second A.C. contactor is connected in parallel on positive switch after being sequentially connected in series
With the both ends of the first ac contactor coil；The auxiliary normally-closed contact of first A.C. contactor, the auxiliary of the second A.C. contactor
The coil of normally-closed contact, the power cut off delay normally opened contact of first time relay and D.C. contactor is connected to fire after being sequentially connected in series
Between line and zero curve；The coil both ends of first time relay and second time relay are separately connected firewire and zero curve；First
The control terminal of first time relay, direct current are connected after A.C. contactor is in parallel with the auxiliary normally opened contact of the second A.C. contactor
The auxiliary normally opened contact of contactor connects the control terminal of second time relay；The preset time of first time relay is less than the
The preset time of two time relays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810530292.8A CN108555653A (en) | 2018-05-29 | 2018-05-29 | A kind of milling machine X-axis brake protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810530292.8A CN108555653A (en) | 2018-05-29 | 2018-05-29 | A kind of milling machine X-axis brake protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108555653A true CN108555653A (en) | 2018-09-21 |
Family
ID=63540357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810530292.8A Withdrawn CN108555653A (en) | 2018-05-29 | 2018-05-29 | A kind of milling machine X-axis brake protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108555653A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB970613A (en) * | 1962-06-08 | 1964-09-23 | Planeta Veb Druckmasch Werke | Improvements in safety circuits for electrically-driven machines |
| CH496512A (en) * | 1969-01-17 | 1970-09-30 | R K Leblond Machine Tool Co | Tool changer for a machine tool |
| US4607804A (en) * | 1984-10-29 | 1986-08-26 | Goldberg Brothers, Inc. | Film winding and rewinding apparatus |
| CN203406809U (en) * | 2013-08-09 | 2014-01-22 | 无锡吉兴汽车声学部件科技有限公司 | Vacuum adsorption apparatus motor control circuit of automobile foaming component processing pressure maintaining device |
| CN103633888A (en) * | 2013-11-25 | 2014-03-12 | 国家电网公司 | Motor positive and negative rotation control circuit |
| CN105842570A (en) * | 2016-06-03 | 2016-08-10 | 句容市博远电子有限公司 | Liquid cold and thermal shock device |
| CN208467863U (en) * | 2018-05-29 | 2019-02-05 | 安徽晶菱机床制造有限公司 | A kind of milling machine X-axis brake protection device |
-
2018
- 2018-05-29 CN CN201810530292.8A patent/CN108555653A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB970613A (en) * | 1962-06-08 | 1964-09-23 | Planeta Veb Druckmasch Werke | Improvements in safety circuits for electrically-driven machines |
| CH496512A (en) * | 1969-01-17 | 1970-09-30 | R K Leblond Machine Tool Co | Tool changer for a machine tool |
| US4607804A (en) * | 1984-10-29 | 1986-08-26 | Goldberg Brothers, Inc. | Film winding and rewinding apparatus |
| CN203406809U (en) * | 2013-08-09 | 2014-01-22 | 无锡吉兴汽车声学部件科技有限公司 | Vacuum adsorption apparatus motor control circuit of automobile foaming component processing pressure maintaining device |
| CN103633888A (en) * | 2013-11-25 | 2014-03-12 | 国家电网公司 | Motor positive and negative rotation control circuit |
| CN105842570A (en) * | 2016-06-03 | 2016-08-10 | 句容市博远电子有限公司 | Liquid cold and thermal shock device |
| CN208467863U (en) * | 2018-05-29 | 2019-02-05 | 安徽晶菱机床制造有限公司 | A kind of milling machine X-axis brake protection device |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180921 |
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| WW01 | Invention patent application withdrawn after publication |