Model utility content
The technical problems to be solved in the utility model is to provide a kind of hydraulic type fixture control system, and its structure is simple, and has processing ease, the features such as safe pressurize, decompression ftercompction, gas-liquid linked and anti-leak.
Be achieved through the following technical solutions above-mentioned purpose:
Hydraulic type fixture control system, comprise four groups or above fixture control group, described fixture control group comprises a flowline and an oil returning tube respectively, be connected to interactive oil outlet tube hydraulic control fixture oil cylinder after described flowline is connected with safety pressure maintaining device or be connected to rolling clamp hydraulic jack, after described oil returning tube is connected with return filter, connecting fuel tank; Fixture control group described in each comprises the solenoid directional control valve, solenoid check valve and the control group that connect successively; Described control group comprises pressure relay, accumulator and pressure meter switch; Wherein the fixture control group of two groups connects a reduction valve respectively.
Above-described hydraulic type fixture control system, described safety pressure maintaining device comprises the filter connected successively, the vane pump started by asynchronous motor, one-way valve and pressure relay; Described pressure relay also connects a pressure meter switch.
A kind of hydraulic type clamp device using described hydraulic type fixture control system, one worktable is arranged four or above fixture control group, the solenoid directional control valve of described fixture control group is side by side in work edge of table, the asynchronous motor of vane pump power is provided to be arranged at worktable center, the accumulator of each fixture control group is arranged at worktable edge, and the display surface of each pressure relay control knob and pressure meter switch is integrated on a control panel.
Above-described hydraulic type clamp device, the flowline and the oil returning tube that connect each structure are integrated in below worktable.
The beneficial effects of the utility model are: the logical overlay order of each group fixture control group can ensure it everything goes well with your work same and can superpose fixture control group in addition, ensure that frequently can not produce ftercompction situation causes machine to damage by safety pressure maintaining device simultaneously, automatic compensation in damage pressure situation once in a while, can pressure stability be ensured, there is the effect of efficient energy-saving.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in further detail, it should be noted that, the direction term mentioned in following examples, such as " upper and lower, left and right " are only the directions with reference to accompanying drawing, therefore, the direction term of use is used to illustrate and is not used for limiting the utility model.
As Figure 1-3, following as specific embodiment, as in Fig. 1 being the fixture control group embodiment of four groups of superpositions, middle extension is the Outlet of connection for subsequent use, the fixture control group of superposition in addition can be connected, hydraulic type fixture control system, comprise four groups or above fixture control group, described fixture control group comprises a flowline and an oil returning tube respectively, and described flowline and safety pressure maintaining device are connected to hydraulic fixture oil cylinder that interactive flowline controls or are connected to rolling clamp hydraulic jack (without showing in figure).Described oil returning tube connects fuel tank after being connected with return filter 12; Fixture control group described in each comprise connect successively solenoid directional control valve 81,82,83,84, solenoid check valve Z1, Z2, Z3, Z4 and control group; Described control group comprises pressure relay J1, J2, J3, J4, accumulator A, B, C, D and pressure meter switch B1, B2, B3, B4; Wherein the fixture control group of two groups connects reduction valve YP1, a YP2 respectively.
Above-described hydraulic type fixture control system, described safety pressure maintaining device comprises the filter 2 connected successively, the vane pump 4 started by asynchronous motor 3, one-way valve 5 and pressure relay JP; Described pressure relay JP also connects a pressure meter switch B0.
After energising, asynchronous motor 3 and pressure-sensitive switch (without showing in figure) contact, vane pump buy oil after oil sump tank.After operator operates and compresses button, control the solenoid directional control valve 84 first action in fixture D group, precompressed is carried out or periphery is spacing fixing to needing the workpiece of processing, then solenoid check valve Z4 is communicated with the accumulator A controlled in fixture A group, overlength pressure maintaining effect can be played, pressure relay J4 uses as ftercompction when being used for not enough to oil circuit pressure, and reduction valve YP2 regulates the pressure used in oil circuit; Pressure meter switch B4 uses as pressurize display list.
When after deferred action, control solenoid directional control valve 83 action of fixture C group, workpiece is compressed or unclamps, simultaneously to accumulator B pressurising accumulation of energy; Pressure relay JP as the anti-detecting switch of safety monitors all pressure securities and reaches, and to instruction machine start, stop to the instruction electric control delay time motor that continues out, system is state of dormancy in pressurize, reaches the high energy-conservation object of environmental protection simultaneously.Pressure meter switch B0 can detect use in minimum, pressure meter switch B3 can see use pressure, and pressure meter switch B3 is communicated with accumulator B, rise overlength pressure maintaining effect, pressure relay J3 as pressure switch, detected pressures drop-out value, automatic compensation.Store hydraulic pressure three-position four-way electromagnetic directional valve 83, air-operated solenoid valve is reset to meta.Oil pump off-load is to fuel tank, and motor and oil pump stop, and avoids fuel tank to produce temperature rise; Solenoid check valve Z3 and accumulator B supplements the pressure loss that in chucking appliance system, issuable minute leakage or oil cylinder string chamber produce simultaneously, thus ensures the zero pressure drop of fixture.After work pieces process completes, manual/auto pressing loosens button.
Solenoid directional control valve 83 and solenoid check valve Z3 action simultaneously, accumulator C and fixture pressure release are simultaneously to fuel tank, and workpiece unclamps.Press or the meta of the three bit manipulation buttons that reset, can stop or starting electrical machinery oil pump group.The pressure relay JP of solenoid directional control valve 82, solenoid check valve Z2, accumulator C, pressure relay J2, pressure meter switch B2 and safety monitoring switch is analogized by this; Pressure relay JP monitors all pressure securities and reaches, and to instruction machine start, continue out to instruction electric control delay time, motor stops, and system is state of dormancy in pressurize simultaneously.Reach the high energy-conservation object of environmental protection.Analogize by this, all the other two groups: the pressure relay JP of solenoid directional control valve 81, solenoid check valve Z1, accumulator D, pressure relay J1, pressure meter switch B1, safety monitoring switch; Pressure relay JP monitors all pressure securities and reaches, to instruction machine start, simultaneously give instruction electric control delay time continue out motor stop, system is state of dormancy in pressurize.Reach the high energy-conservation object of environmental protection.If frequent ftercompction, pressure relay JP can send instruction and go alarm to sound a buzzer, and at this time then detects chucking appliance system and whether leaks pressure too frequently, maintenance break-off.
A kind of hydraulic type clamp device using described hydraulic type fixture control system, one worktable 1 is arranged four or above fixture control group, the solenoid directional control valve 2 of described fixture control group is side by side in the edge of worktable 1, the asynchronous motor 3 of vane pump power is provided to be arranged at worktable 1 center, the accumulator 5 of each fixture control group is arranged at worktable 1 edge, and the display surface of each pressure relay control knob and pressure meter switch to be integrated on a control panel 4.
Above-described hydraulic type clamp device, the flowline and the oil returning tube that connect each structure are integrated in below worktable 1.
The above not imposes any restrictions this novel technical scope, all above embodiment is done according to the utility model technical spirit any amendment, equivalent variations and modification, all still belong in the scope of this novel technological scheme.