CN202291518U - Hydraulic control system of drilling machine capable of automatically controlling stroke through hydraulic pressure - Google Patents
Hydraulic control system of drilling machine capable of automatically controlling stroke through hydraulic pressure Download PDFInfo
- Publication number
- CN202291518U CN202291518U CN 201120356861 CN201120356861U CN202291518U CN 202291518 U CN202291518 U CN 202291518U CN 201120356861 CN201120356861 CN 201120356861 CN 201120356861 U CN201120356861 U CN 201120356861U CN 202291518 U CN202291518 U CN 202291518U
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- hydraulic
- hydraulic circuit
- control system
- drilling machine
- directional valve
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- Expired - Fee Related
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Abstract
The utility model discloses a hydraulic control system of a drilling machine capable of automatically controlling stroke through hydraulic pressure, which comprises an oil tank, an oil pump and a hydraulic circuit in series connection with the oil tank and driving a power head spindle to feed. The hydraulic control system is characterized by further comprising a programmable logic controller (PLC) and a displacement sensor which is used for detecting the position of the power head spindle. A ratio directional valve for adjusting the flow and direction of hydraulic oil in the hydraulic circuit is arranged in the hydraulic circuit, and the PLC is used for receiving a signal of the displacement sensor and outputting a control signal of the ratio directional valve. The PLC can control the state change of the ratio directional valve according to a position signal of the power head spindle sent by the displacement sensor and adjust the flow speed and direction of the hydraulic circuit through the ratio directional valve so that the feeding speed and motion direction of the power head spindle can be automatically adjusted, and knife tipping phenomenon is reduced.
Description
Technical field
The utility model relates to a kind of hydraulic control system, particularly a kind of hydraulic control system of hydraulic pressure automatic control stroke drilling machine.
Background technology
The hydraulic circuit of traditional automatic control stroke drilling machine through soon/slow control valve carries out the switching that fast feed and worker advance, if under the operating mode of advancing to need to regulate continuously the worker, utilizes the fast/loop designed of valve more complicated that will become at a slow speed.And use conventional hydraulic valve not adjust drilling speed and pressure automatically according to the process of boring, and often cause collapsing the cutter phenomenon, influence the service life of cutter.
Summary of the invention
The problem that the utility model will solve is: a kind of hydraulic control system of hydraulic pressure automatic control stroke drilling machine is provided, makes it can regulate the feed speed and the direction of motion of dynamic head main spindle automatically.
For addressing the above problem; The utility model comprises the hydraulic circuit that the oil cylinder of fuel tank, oil pump and the feeding of driving dynamic head main spindle is connected in series; It is characterized in that: also include PLC controller and the displacement transducer that detects the dynamic head main spindle position; Be provided with the proportion directional valve of hydraulic fluid flow rate and direction in the regulator solution hydraulic circuit in the described hydraulic circuit, the PLC controller is used to receive the signal and the Comparative Examples direction valve output control signal of displacement transducer.
For native system can in time be adjusted centripetal force, and can guarantee constant feed speed according to the operating mode difference, improve working (machining) efficiency, be provided with the pressure compensator of the flow of stabilization ratio proportional direction valve under certain opening degree in the described hydraulic circuit.
In order to remove the impurity of hydraulic oil in the hydraulic circuit, be provided with filter in the described hydraulic circuit.
The beneficial effect of the utility model: the utility model PLC controller is according to the variation of the state of the position signalling control ratio direction valve of the dynamic head main spindle of the transmission of displacement transducer; The flow velocity and the direction of passing ratio direction valve regulator solution hydraulic circuit; Realize regulating automatically the feed speed and the direction of motion of dynamic head main spindle, reduced and collapsed the cutter phenomenon.
Description of drawings
Fig. 1 is the flow chart of the utility model;
Fig. 2 is the dynamic head main spindle working state figure of the utility model;
Among the figure: 1, filter, 2, pressure compensator, 3, the proportion directional valve, 3-1, amplifier, 4, hydraulic cylinder, 5, the PLC controller, 6, fuel tank, 7, oil pump, 8, displacement transducer, 9, dynamic head main spindle, 10, workpiece.
The specific embodiment
Like Fig. 1, a kind of specific embodiment shown in Figure 2; It comprises fuel tank 6, oil pump 7, filter 1 and drives the hydraulic circuit that the hydraulic cylinder 4 of dynamic head main spindle 9 feedings is connected in series; Be provided with the proportion directional valve 3 of hydraulic fluid flow rate and direction in the regulator solution hydraulic circuit in the hydraulic circuit, be provided with the pressure compensator 2 of the flow of stabilization ratio proportional direction valve 3 under certain opening degree in the hydraulic circuit.A side at piston upper piston rod place is the A chamber in the hydraulic cylinder 4, and a side that deviates from piston rod on the piston is the B chamber.Dynamic head main spindle 9 is connected with the piston rod of hydraulic cylinder 4.
This specific embodiment also includes PLC controller 5 and the displacement transducer 8 that detects dynamic head main spindle 9 positions, and PLC controller 5 is used to receive the signal of displacement transducer 8 and exports control signals through the signal contrast proportional direction valve 3 of displacement transducer 8.The control signal of PLC controller 5 is the amplifier 3-1 that pass to proportion directional valve 3.
As shown in Figure 2, below to drill through the concrete control mode that the hole is this hydraulic control system of example explanation:
Dynamic head main spindle 9 comprises following five key points in motion process: the upper limit Q1 of dynamic head main spindle 9 motion, be positioned under the Q1 and be positioned at certain distance on the upper surface of workpiece 10 Q2, contact workpiece 10 upper surface position Q3, be about to bore position Q4 when passing through workpiece 10, bore the position Q5 that passes through workpiece 10.
When PLC controller 5 receives dynamic head main spindle 9 that displacement transducer 8 sends when moving to the position signalling of Q1, Q2, Q4 and Q5, PLC controller 5 sends the control signal of state variation to proportion directional valve 3.
When dynamic head main spindle 9 moved to Q1, PLC controller 5 control ratio direction valves 3 regulator solution hydraulic circuits were fuel-displaced from the A chamber to the B chamber oil-feed of hydraulic cylinder 4 with the speed of maximum.To reach the maximum feed speed of dynamic head main spindle 9.
When dynamic head main spindle 9 moved to Q2, PLC controller 5 control ratio direction valves 3 reduced the oil speed of hydraulic circuit.The drill bit of dynamic head main spindle 9 is slowly contacted with workpiece 10.
After dynamic head main spindle 9 moves to Q3, under the control of pressure compensator 2, system can in time be adjusted centripetal force, and can guarantee constant feed speed according to the operating mode difference, improve working (machining) efficiency.
When dynamic head main spindle 9 moved to Q4, PLC controller 5 control ratio direction valves 3 further reduced the oil speed of hydraulic circuit.Under low feed speed, bore and pass through workpiece 10; Can guarantee that like this deep hole machining process reduces cutter workpiece frictional heating amount; Prolong cutter life and improve the aperture crudy, low feed speed can also prevent to bore the impact of workpiece 10 back drill bits, prevents to collapse the blade phenomenon.
When dynamic head main spindle 9 moved to Q5, PLC controller 5 control ratio direction valves 3 regulator solution hydraulic circuits were fuel-displaced from the B chamber to the A chamber oil-feed of hydraulic cylinder 4 with the speed of maximum, make the quick return of drill bit, reach work upper limit Q1.Accomplish the time processing process, so circulate repeatedly, until process finishing.
This hydraulic control system not only can be used for control and drills through the hole, changes the control program of PLC controller according to the manufacturing procedure of blind hole, can be used for controlling processing blind hole.
Claims (3)
1. the hydraulic control system of a hydraulic pressure automatic control stroke drilling machine; Comprise the hydraulic circuit that the oil cylinder of fuel tank, oil pump and the feeding of driving dynamic head main spindle is connected in series; It is characterized in that: also include PLC controller and the displacement transducer that detects the dynamic head main spindle position; Be provided with the proportion directional valve of hydraulic fluid flow rate and direction in the regulator solution hydraulic circuit in the described hydraulic circuit, the PLC controller is used to receive the signal and the Comparative Examples direction valve output control signal of displacement transducer.
2. the hydraulic control system of hydraulic pressure automatic control stroke drilling machine according to claim 1 is characterized in that: the pressure compensator that is provided with the flow of stabilization ratio proportional direction valve under certain opening degree in the described hydraulic circuit.
3. the hydraulic control system of hydraulic pressure automatic control stroke drilling machine according to claim 1 and 2 is characterized in that: be provided with filter in the described hydraulic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120356861 CN202291518U (en) | 2011-09-22 | 2011-09-22 | Hydraulic control system of drilling machine capable of automatically controlling stroke through hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120356861 CN202291518U (en) | 2011-09-22 | 2011-09-22 | Hydraulic control system of drilling machine capable of automatically controlling stroke through hydraulic pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202291518U true CN202291518U (en) | 2012-07-04 |
Family
ID=46360497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120356861 Expired - Fee Related CN202291518U (en) | 2011-09-22 | 2011-09-22 | Hydraulic control system of drilling machine capable of automatically controlling stroke through hydraulic pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202291518U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921989A (en) * | 2012-11-05 | 2013-02-13 | 陈相贤 | Hydraulic pressure multiple-spindle boring machine |
| CN106001672A (en) * | 2016-05-27 | 2016-10-12 | 盛奇石 | Automatic drilling machine |
-
2011
- 2011-09-22 CN CN 201120356861 patent/CN202291518U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921989A (en) * | 2012-11-05 | 2013-02-13 | 陈相贤 | Hydraulic pressure multiple-spindle boring machine |
| CN106001672A (en) * | 2016-05-27 | 2016-10-12 | 盛奇石 | Automatic drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20140922 |
|
| EXPY | Termination of patent right or utility model |