CN207363982U - Numerically-controlled machine tool brake hydraulic system and hydraulic station - Google Patents

Abstract

The utility model provides a kind of numerically-controlled machine tool brake hydraulic system, includes hydraulic oil storage conveying mechanism and brake circuit；Brake performance loop includes the first reversal valve, dual hydraulic control one-way valve, Double throttle check valve and the first double acting hydraulic cylinder；First reversal valve, dual hydraulic control one-way valve, Double throttle check valve, the first double acting hydraulic cylinder are sequentially connected；Hydraulic oil storage conveying mechanism includes oil inlet oil circuit and oil return circuit；Oil inlet oil circuit, brake circuit, oil return circuit are sequentially connected；Check valve is provided with oil inlet oil circuit.The utility model additionally provides a kind of hydraulic station, includes main shaft pine folder knife circuit, tool magazine movement circuit and above-mentioned numerically-controlled machine tool brake hydraulic system；Main shaft pine folder knife circuit, tool magazine movement circuit, brake circuit are connected in parallel.The utility model is provided with dual hydraulic control one-way valve and accumulator at the same time in oil circuit, after oil pump fuel cut-off, brake circuit still can effective pressurize for a long time, prevent brake failure from causing danger.

Description

Numerically-controlled machine tool brake hydraulic system and hydraulic station

Technical field

It the utility model is related to a kind of hydraulic system, and in particular, to a kind of numerically-controlled machine tool brake hydraulic system and hydraulic pressure Stand.

Background technology

Patent document CN106286444A provides a kind of novel pincers rotating hydraulic system, and setting is dynamic to perform system System, safety system and brake system, power actuation system are connected with each other with safety system, and safety system is with stopping Car system is connected with each other, and pinpoint module and locking module are included in power actuation system, is equipped with and mends in safety system Oily module and security protection module, brake system is interior to be equipped with skidding module.Directional flow ratio is equipped with hydraulic system Valve, can be very good the flow direction of the hydraulic oil in control hydraulic system, preferably control the rotation angle of clamp, allow the rotation of clamp Gyration is more accurately positioned, and is also equipped with electromagnet cut off valve on output cavity both sides, preferably can be locked clamp bar It is fixed, prevent the claw beam of clamp from the deviation positioned occur, pressure release bridge is equipped with hydraulic system, machinery can be subject to avoid clamp Hydraulic shock.But structure the problem of still having pressurize scarce capacity that the patent document provides.

Utility model content

For in the prior art the defects of, the purpose of this utility model be to provide a kind of numerically-controlled machine tool brake hydraulic system with Hydraulic station.

According to numerically-controlled machine tool brake hydraulic system provided by the utility model, hydraulic oil storage conveying mechanism and brake are included Action circuit；

Brake performance loop includes the first reversal valve, dual hydraulic control one-way valve, Double throttle check valve and the first double acting liquid Cylinder pressure；

First reversal valve, dual hydraulic control one-way valve, Double throttle check valve, the first double acting hydraulic cylinder are sequentially connected；

Hydraulic oil storage conveying mechanism includes oil inlet oil circuit and oil return circuit；

Oil inlet oil circuit, brake circuit, oil return circuit are sequentially connected；

Check valve is provided with oil inlet oil circuit.

Preferably, also comprising oil inlet oil circuit pressure table and accumulator；

Oil inlet oil circuit pressure table, accumulator are in parallel with brake circuit；

Where oil inlet oil circuit pressure table normally opened shut-off valve is provided with branch.

Preferably, first reversal valve is two-position four-way solenoid directional control valve；

Where first reversal valve pressure reducing valve is provided with branch.

Preferably, between Double throttle check valve and the first double acting hydraulic cylinder bypass line is drawn in connecting pipe；

Pressure switch is provided with the bypass line.

Preferably, it is connected between oil inlet oil circuit and oil return circuit by normally closed cut-off valve.

Preferably, the hydraulic oil storage conveying mechanism includes fuel tank, the first oil filter, oil pump, motor and the second filter Oily device；

Motor drives oil pump, and hydraulic oil is reached by the first oil filter, oil pump, oil inlet oil circuit and stopped successively from fuel tank extraction After car action circuit, then return in fuel tank by the second oil filter.

Preferably, hydraulic oil storage conveying mechanism is also comprising filtering cooling circuit；

Filter cooling circuit and include cooling solenoid valve and cooler；

Motor drives oil pump, and hydraulic oil reaches filtering and cool back by the first oil filter, oil pump successively from fuel tank extraction Lu Hou, then returned to by the second oil filter in fuel tank.

Preferably, hydraulic oil storage conveying mechanism also includes liquid level gauge and air filter；

Liquid level gauge is installed on fuel tank；Oil inlet is provided with fuel tank, air filter is installed at oil inlet.

The utility model additionally provides a kind of hydraulic station, presss from both sides knife circuit comprising main shaft pine, tool magazine moves circuit and above-mentioned Numerically-controlled machine tool brake hydraulic system；

Main shaft pine folder knife circuit, tool magazine movement circuit, brake circuit are connected in parallel.

Compared with prior art, the utility model has following beneficial effect：

1st, the utility model is provided with dual hydraulic control one-way valve and accumulator at the same time in oil circuit, after oil pump fuel cut-off, stops Car action circuit still can effective pressurize for a long time, prevent brake failure from causing danger；

2nd, filtering cooling circuit is provided with the utility model, hydraulic oil can be cooled down and filtered, and stopped When car action circuit needs to carry out fuel feeding, cooling solenoid valve only need to be closed, oil pump continues to run with can be to brake circuit Fuel feeding is carried out, response is rapid；

3rd, the utility model connection is rationally compact, and it is dynamic that hydraulic oil storage conveying mechanism can connect multiple such as brakes at the same time Make circuit, main shaft pine folder knife circuit, the function action circuit in tool magazine movement circuit.

Brief description of the drawings

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon：

Fig. 1 is hydraulic station structure figure provided by the utility model；

Fig. 2 is brake loop structure figure；

Fig. 3 is hydraulic station top view；

Fig. 4 is hydraulic station stereogram.

Shown in figure：

Embodiment

The utility model is described in detail with reference to specific embodiment.Following embodiments will be helpful to this area Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that to ability For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made. These belong to the scope of protection of the utility model.

As shown in Figure 1 and Figure 2, in embodiment, numerically-controlled machine tool brake hydraulic system provided by the utility model includes hydraulic oil Storing and conveying mechanism 100 and brake circuit.Wherein, brake circuit includes the first reversal valve 12, dual hydraulic control one-way valve 15th, 16 and first double acting hydraulic cylinder 301 of Double throttle check valve, the first reversal valve 12, dual hydraulic control one-way valve 15, double unidirectional sections Stream valve 16, the first double acting hydraulic cylinder 301 are sequentially connected, and hydraulic oil storage conveying mechanism 100 includes oil inlet oil circuit and oil return oil Road, oil inlet oil circuit, brake circuit, oil return circuit are sequentially connected, and check valve is provided with oil inlet oil circuit.The hydraulic oil reservoir Deposit conveying mechanism 100 and also drive oil pump comprising fuel tank 1, the first oil filter 2, oil pump 5,7 and second oil filter 9 of motor, motor 7 5, hydraulic oil from the extraction of fuel tank 1 successively after the first oil filter 2, oil pump 5, oil inlet oil circuit reach brake circuit, then Returned to by the second oil filter 9 in fuel tank 1, the check valve on oil inlet oil circuit can prevent the hydraulic oil in brake circuit through oil Pump 5 is flowed into fuel tank 1.First reversal valve 12 is two-position four-way solenoid directional control valve, in using the course of work, the first double acting Hydraulic cylinder 301 is connected with brake structure, passes through the action of the first reversal valve 12 so that in brake circuit hydraulic oil disengaging side To change, and then moving back and forth for 301 piston of the first double acting hydraulic cylinder is controlled, be finally completed brake and release.

Hydraulic oil storage conveying mechanism also includes cooling solenoid valve and cooling comprising filtering cooling circuit, filtering cooling circuit Device 8, when cool down solenoid valve open when, motor 7 drive oil pump 5, hydraulic oil from fuel tank 1 extraction in successively by the first oil filter 2, After oil pump 5 reaches filtering cooling circuit, then return in fuel tank 1 by the second oil filter 9.The cooler 8 is cooling fan.When , only need to be to cooling solenoid valve power-off when brake circuit needs to carry out fuel feeding, without restarting oil pump 5, hydraulic oil can pass through Oil inlet oil circuit enters brake circuit.Preferably, can be with set temperature sensor, when 1 temperature of fuel tank is high in fuel tank 1 When setting value, solenoid valves are cooled down, cooling fan is opened, and oil pump 5 is run；It is cold when 1 temperature of fuel tank drops to setting value But solenoid valve powers off, and cooling fan stops, and oil pump 5 then stops or works on according to operating condition.

In preference, oil inlet oil circuit pressure table 17 and accumulator 10, oil inlet oil circuit pressure table 17, accumulator 10 are additionally provided with It is in parallel with brake circuit, it is provided with normally opened shut-off valve on 17 place branch of oil inlet oil circuit pressure table；Double throttle check valve 16 Bypass line is drawn in connecting pipe between the first double acting hydraulic cylinder 301, pressure switch is provided with the bypass line 18.Double throttle check valve 16 maintains the pressure in brake circuit with accumulator 10 jointly, when the pressure in brake circuit During less than setting pressure, pressure switch 18 sends signal, and oil pump 5, which starts to the brake circuit, supplements hydraulic oil.Preferably, Pressure reducing valve 11 is provided with brake circuit, pressure reducing valve 11 is arranged between oil inlet oil circuit and the first reversal valve 12, for controlling Brake speed processed.Preferably, hydraulic oil storage conveying mechanism 100 is also comprising liquid level gauge 3 and air filter 4, liquid level gauge 3 On fuel tank 1；Oil inlet 20 is provided with fuel tank 1, air filter 4 is installed at oil inlet 20.Liquid level gauge 3 is connected with Liquid-level switch, when liquid level is less than setting value in fuel tank 1, sends the low alarm of liquid level.

The utility model additionally provides a kind of hydraulic station, presss from both sides knife circuit comprising main shaft pine, tool magazine moves circuit and above-mentioned Numerically-controlled machine tool brake hydraulic system, main shaft pine folder knife circuit, tool magazine movement circuit, brake circuit are connected in parallel.Main shaft Pine folder knife circuit, tool magazine movement circuit, brake circuit share a hydraulic oil storage conveying mechanism 100.

Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, This has no effect on the substantive content of the utility model.In the case where there is no conflict, the spy in embodiments herein and embodiment Sign can be arbitrarily mutually combined.

Claims (9)

1. a kind of numerically-controlled machine tool brake hydraulic system, it is characterised in that returned comprising hydraulic oil storage conveying mechanism with brake Road；

Brake performance loop includes the first reversal valve, dual hydraulic control one-way valve, Double throttle check valve and the first double acting hydraulic cylinder；

First reversal valve, dual hydraulic control one-way valve, Double throttle check valve, the first double acting hydraulic cylinder are sequentially connected；

Hydraulic oil storage conveying mechanism includes oil inlet oil circuit and oil return circuit；

Oil inlet oil circuit, brake circuit, oil return circuit are sequentially connected；

Check valve is provided with oil inlet oil circuit.

2. numerically-controlled machine tool brake hydraulic system according to claim 1, it is characterised in that also comprising oil inlet oil circuit pressure table With accumulator；

Oil inlet oil circuit pressure table, accumulator are in parallel with brake circuit；

Where oil inlet oil circuit pressure table normally opened shut-off valve is provided with branch.

3. numerically-controlled machine tool brake hydraulic system according to claim 2, it is characterised in that first reversal valve is two Four-way electromagnetic reversing valve；

Where first reversal valve pressure reducing valve is provided with branch.

4. numerically-controlled machine tool brake hydraulic system according to claim 1, it is characterised in that Double throttle check valve and first pair Bypass line is drawn between acting cylinder in connecting pipe；

Pressure switch is provided with the bypass line.

5. numerically-controlled machine tool brake hydraulic system according to claim 1, it is characterised in that oil inlet oil circuit and oil return circuit it Between be connected by normally closed cut-off valve.

6. numerically-controlled machine tool brake hydraulic system according to claim 1, it is characterised in that the hydraulic oil stores conveyer Structure includes fuel tank, the first oil filter, oil pump, motor and the second oil filter；

Motor drives oil pump, and hydraulic oil is dynamic by the first oil filter, oil pump, the arrival brake of oil inlet oil circuit successively from fuel tank extraction After making circuit, then return in fuel tank by the second oil filter.

7. numerically-controlled machine tool brake hydraulic system according to claim 6, it is characterised in that hydraulic oil storage conveying mechanism is also Include filtering cooling circuit；

Filter cooling circuit and include cooling solenoid valve and cooler；

Motor drive oil pump, hydraulic oil from fuel tank extraction in successively by the first oil filter, oil pump reach filtering cooling circuit after, Returned to again by the second oil filter in fuel tank.

8. numerically-controlled machine tool brake hydraulic system according to claim 6, it is characterised in that hydraulic oil storage conveying mechanism is also Include liquid level gauge and air filter；

Liquid level gauge is installed on fuel tank；Oil inlet is provided with fuel tank, air filter is installed at oil inlet.

9. a kind of hydraulic station, it is characterised in that comprising in main shaft pine folder knife circuit, tool magazine movement circuit and claim 1 to 8 Any one of them numerically-controlled machine tool brake hydraulic system；

Main shaft pine folder knife circuit, tool magazine movement circuit, brake circuit are connected in parallel.