CN206920911U - The PLC control system of twin shaft auto-feed heavy machine tool - Google Patents
The PLC control system of twin shaft auto-feed heavy machine tool Download PDFInfo
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- CN206920911U CN206920911U CN201720659128.8U CN201720659128U CN206920911U CN 206920911 U CN206920911 U CN 206920911U CN 201720659128 U CN201720659128 U CN 201720659128U CN 206920911 U CN206920911 U CN 206920911U
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- knife rest
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Abstract
The utility model discloses a kind of PLC control system of twin shaft auto-feed heavy machine tool, including PLC, servo-driver, servomotor, Spindle control module, knife rest control module, tailstock control module, emergency stop switch, a/d converter and D/A converter, Spindle control module, knife rest control module, tailstock control module and emergency stop switch are connected by a/d converter with PLC, servo-driver one end is connected by D/A converter with PLC, and the other end is connected with servomotor.The control command of lathe is transmitted by signal, and the feeding of lathe twin shaft, knife rest and tailstock all drives by servomotor, has banned conventional slip crate and handwheel controlling organization, has avoided the wear problem of knife rest parts；Both manpower is saved, improves machine tool accuracy and operating efficiency again, while avoids potential safety hazard caused by manual operation；Knife rest control module can accurate adjustment knife rest feed speed.
Description
Technical field
Machine tool field is the utility model is related to, more particularly to a kind of PLC control system of twin shaft auto-feed heavy machine tool.
Background technology
During the twin shaft feeding of existing heavy machine tool, Z axis feeding controls generally by slip crate, and X-axis feeding is general
It is by the way that handwheel is hand or common electric machine fast feed controls, is proved by long-term practice, such design has following lack
Fall into：
(1) slip crate feed accuracy is poor
Slip crate feeding mainly passes through gear member engaged transmission stepped gearing, and meshed transmission gear can all exist incomplete
Engagement, gear clearance is excessive, the less defect of Gear Contact Surface, and this critical defect can cause the unstable of knife rest movement numerical value
Property, so as to which the actual numerical value for causing knife rest to feed is not inconsistent with drawing size, it is larger to ultimately cause workpiece tolerance.
(2) labour demand is big
When existing machine Z-axis or X-axis are fed, when particularly lathe needs to process knife, it is required for minimum two people while joins
It is responsible for controlling slip crate with a, people, another people is responsible for observing the distance of cutter and workpiece, and labor intensity is big and waste of manpower.
(3) operating efficiency is low
The slip crate control of existing lathe either Z axis, or the handwheel control of X-axis, are required for artificial lift slip crate
Handle, or hand feed is manually shaken, moving speed of tool post is slower, while complex procedures, greatly reduces processing efficiency.
(4) knife rest feed rate is dull
During existing machine Z-axis feeding, feed speed is single non-adjustable, can only be controlled by slip crate fast feed, X-axis is entered
Can only be controlled completely by hand handwheel to speed, moving speed of tool post is even more to fully rely on manual control, and feed speed is not
Stable, knife rest feeding is unstable.
(5) knife rest parts wear is more serious
For existing machine tool, because slip crate movement is that Z axis, X-axis are continual by feed rod, lead screw transmission
Reciprocal transmission, plus the artificial unstability for shaking leading screw, the abrasion to leading screw is larger, causes leading screw, feed rod service life big
Amplitude reduction, increase the rate of wear of machine tool element.
(6) safe operation performance is relatively low
When existing lathe is to knife, due to feeding twin shaft while not it is observed that tool position, easily causes lathe to hit knife
The generation of accident.Meanwhile when manually feeding, iron filings or wet and slippery bottom surface that lathe is thrown away easily damage to worker, worker
Safety coefficient it is relatively low.
Utility model content
In order to solve the above technical problems, the utility model discloses a kind of PLC of twin shaft auto-feed heavy machine tool controls
System, including PLC, servo-driver, servomotor, Spindle control module, knife rest control module, tailstock control mould
Block, emergency stop switch, a/d converter and D/A converter, the Spindle control module, knife rest control module, tailstock control module with
And emergency stop switch is connected by a/d converter with PLC, described servo-driver one end is controlled by D/A converter and PLC
Device connection processed, the other end are connected with servomotor.
As the further improvement of above-mentioned technical proposal, it is anti-that the Spindle control module includes main shaft rotating forward button, main shaft
Turn button, main shaft stop button and main shaft inching button.
As the further improvement of above-mentioned technical proposal, the knife rest control module enters button, knife rest work including knife rest work
Move back button, knife rest fast forward button, knife rest fast backward button and knife rest feeding speed governing knob.
As the further improvement of above-mentioned technical proposal, the tailstock control module includes tailstock forwarding button and tailstock
Back.
As the further improvement of above-mentioned technical proposal, the servo-driver is provided with three-phase power input end, three-phase electricity
Source output terminal, the first ECP Extended Capabilities Port and the second ECP Extended Capabilities Port, the three-phase power input end connects three-phase alternating-current supply, described
First ECP Extended Capabilities Port connects PLC, and the three-phase power output end and the second ECP Extended Capabilities Port connect servomotor respectively
Both ends.
As the further improvement of above-mentioned technical proposal, the three-phase power input end is connected with breaker.
As the further improvement of above-mentioned technical proposal, the three-phase power input end is also associated with transformer.
As the further improvement of above-mentioned technical proposal, the PLC control system also includes grease pump and switched, the profit
Lubricating oil switch pump is connected with PLC.
The beneficial effects of the utility model are：
PLC is transmitted as core component, the control command of lathe by signal, lathe twin shaft, knife rest and
The feeding of tailstock all drives by servomotor, has banned conventional slip crate and handwheel controlling organization completely, has avoided knife rest
The wear problem of parts；And manual control is converted to and automatically controlled by PLC, is both saved manpower, is improved machine again
Bed precision and operating efficiency, while avoid potential safety hazard caused by manual operation；Knife rest control module can accurate adjustment knife
Frame feed speed, substantially increase the accuracy and stability of knife rest feeding.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model,
For those of ordinary skill in the art, without having to pay creative labor, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the principle schematic of the utility model one embodiment；
Fig. 2 is the circuit theory diagrams of servo-driver.
Marked in figure：
1-PLC controllers；2- servo-drivers；3- servomotors；4- Spindle control modules；5- knife rest control modules；6-
Tailstock control module；7- emergency stop switch；8- grease pumps switch；9-AD converters；10-DA converters.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.
As shown in figure 1, the PLC control system of the twin shaft auto-feed heavy machine tool of the present embodiment, including：PLC
1st, servo-driver 2, servomotor 3, Spindle control module 4, knife rest control module 5, tailstock control module 6, emergency stop switch 7,
Grease pump switch 8, a/d converter 9 and D/A converter 10.
Spindle control module 4, knife rest control module 5, tailstock control module 6, emergency stop switch 7 and grease pump switch 8
It is connected by a/d converter 9 with PLC 1, the one end of servo-driver 2 is connected by D/A converter 10 and PLC 1
Connect, the other end is connected with servomotor 3.
Spindle control module 4 includes main shaft rotating forward, reversion, stopping, electronic main shaft can be controlled to rotate forward button, master respectively
Axle reversion button, main shaft stop button and main shaft inching button.
Knife rest control module 5 includes controlling that knife rest work is entered, work is moved back, F.F., the knife rest work of rewind enter button, knife respectively
Frame work moves back button, knife rest fast forward button, knife rest fast backward button, and can adjust the knife rest feeding speed governing rotation of knife rest feed speed
Button.
Tailstock control module 6 includes controlling the tailstock forwarding button that tailstock moves forward and backward and tailstock retreat by
Button.
Control instruction signal is inputted by above-mentioned each module, switching value (simulation) signal is converted into arteries and veins through a/d converter 9
After rushing (numeral) signal, PLC 1 is conveyed to, then pulse signal is converted into on-off model, servo through D/A converter 10
Driver 2 receives corresponding command signal and drives servomotor 3 to carry out corresponding actions, servomotor 3 and then passes through reduction box
Drive machine tool chief axis rotation；Or moved by leading screw band movable knife rack and tailstock.
As shown in Fig. 2 lathe X-axis and Z axis are respectively driven by a servo-driver 2 and a servomotor 3, servo is driven
Dynamic device 2 is provided with three-phase power input end RST, three-phase power output end UVW, the first ECP Extended Capabilities Port CN1 and the second ECP Extended Capabilities Port
CN2。
Three-phase power input end RST connects three-phase alternating-current supply, the first ECP Extended Capabilities Port with transformer TC by circuit breaker Q F
CN1 connections PLC 1, three-phase power output end UVW and the second ECP Extended Capabilities Port CN2 connect the both ends of servomotor 3 respectively.
PLC 1 is used as core component, and the control command of lathe is transmitted by signal, lathe twin shaft, knife rest and
The feeding of tailstock all drives by servomotor 3, has banned conventional slip crate and handwheel controlling organization completely, has avoided knife rest
The wear problem of parts；And manual control is converted to and automatically controlled by PLC 1, is both saved manpower, is improved machine again
Bed precision and operating efficiency, while avoid potential safety hazard caused by manual operation；Knife rest control module 5 can accurate adjustment knife
Frame feed speed, substantially increase the accuracy and stability of knife rest feeding.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (8)
1. a kind of PLC control system of twin shaft auto-feed heavy machine tool, it is characterised in that including PLC, servo-drive
Device, servomotor, Spindle control module, knife rest control module, tailstock control module, emergency stop switch, a/d converter and DA turn
Parallel operation, the Spindle control module, knife rest control module, tailstock control module and emergency stop switch by a/d converter with
PLC is connected, and described servo-driver one end is connected by D/A converter with PLC, the other end and servomotor
Connection.
2. the PLC control system of twin shaft auto-feed heavy machine tool according to claim 1, it is characterised in that the master
Axle control module includes main shaft and rotates forward button, main shaft reversion button, main shaft stop button and main shaft inching button.
3. the PLC control system of twin shaft auto-feed heavy machine tool according to claim 1, it is characterised in that the knife
Frame control module enters button including knife rest work, knife rest work moves back button, knife rest fast forward button, knife rest fast backward button and knife rest are fed
Speed governing knob.
4. the PLC control system of twin shaft auto-feed heavy machine tool according to claim 1, it is characterised in that the tail
Seat control module includes tailstock forwarding button and tailstock back.
5. the PLC control system of the twin shaft auto-feed heavy machine tool according to claim any one of 1-4, its feature exist
In the servo-driver is provided with three-phase power input end, three-phase power output end, the first ECP Extended Capabilities Port and the second extension end
Mouthful, the three-phase power input end connects three-phase alternating-current supply, and first ECP Extended Capabilities Port connects PLC, the three-phase
Power output end and the second ECP Extended Capabilities Port connect the both ends of servomotor respectively.
6. the PLC control system of twin shaft auto-feed heavy machine tool according to claim 5, it is characterised in that described three
Phase power input is connected with breaker.
7. the PLC control system of twin shaft auto-feed heavy machine tool according to claim 6, it is characterised in that described three
Phase power input is also associated with transformer.
8. the PLC control system of twin shaft auto-feed heavy machine tool according to claim 1, it is characterised in that the PLC
Control system also includes grease pump and switched, and the grease pump switch is connected with PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720659128.8U CN206920911U (en) | 2017-06-07 | 2017-06-07 | The PLC control system of twin shaft auto-feed heavy machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720659128.8U CN206920911U (en) | 2017-06-07 | 2017-06-07 | The PLC control system of twin shaft auto-feed heavy machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206920911U true CN206920911U (en) | 2018-01-23 |
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ID=61315237
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720659128.8U Active CN206920911U (en) | 2017-06-07 | 2017-06-07 | The PLC control system of twin shaft auto-feed heavy machine tool |
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| CN (1) | CN206920911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320852A (en) * | 2019-07-27 | 2019-10-11 | 江苏倍川自动化设备有限公司 | A kind of wire structures of control button |
-
2017
- 2017-06-07 CN CN201720659128.8U patent/CN206920911U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320852A (en) * | 2019-07-27 | 2019-10-11 | 江苏倍川自动化设备有限公司 | A kind of wire structures of control button |
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