CN205009649U - Mechanical press hydraulic die cushion controlling means - Google Patents
Mechanical press hydraulic die cushion controlling means Download PDFInfo
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- CN205009649U CN205009649U CN201520579048.2U CN201520579048U CN205009649U CN 205009649 U CN205009649 U CN 205009649U CN 201520579048 U CN201520579048 U CN 201520579048U CN 205009649 U CN205009649 U CN 205009649U
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Abstract
The utility model relates to a mechanical press hydraulic die cushion controlling means belongs to mechanical press technical field, main solves that the current ejecting speed of mechanical press is slow, the impulsive noise is big, ejecting position is uncontrollable, drawing of patterns inefficiency, the nontunable scheduling problem of tension impact short, the tensile pressure of big, tensile stroke. This device proportion of utilization bi -pass inserted valve hydraulic control system adopts high -low pressure energy storage ware to control respectively, and low pressure satisfies quick ejecting action, and speed is controlled by the proportion choke valve, can realize cushioning, in step, finally stopping elevation positioning's accurate control, the high pressure satisfies high -pressure drawing of patterns action, by the action of solenoid valve control switch, and the action of giving of the biggest release volume of proportional valve control of the total route of high -pressure accumulator and the drawing of patterns, tensile process adopts the proportion overflow valve to cushion and the linear control. The device can extensively be used for the control of taking blame for others when carrying out the action of complicated technology and requiring with large -scale mechanical press.
Description
Technical field
The utility model relates to punching machine hydraulic cushion control device, belongs to punching machine technical field.
Background technology
At present, punching machine is the lathe for carrying out pressure processing to material, makes it deform and rupture to be processed into part by applying powerful pressure to blank.Stable working, operating accuracy are high, operating condition good, productivity ratio is high, is easy to realize mechanization, automation, are suitable for working on transfer matic, are widely used in the industrial machinery such as automobile, boats and ships forcing press.Usual large pressing machine is suppressed heavy parts or dark drawing to stretch part and often adopt air cushion, also known as stretching pad.Stretch pad except be used for stretch time flanging prevent wrinkling except, also can be used as liftout or do bottom workpiece locally-shaped.
Hydraulic die cushion in the past main and hydraulic press supports the use, and as found application on punching machine, its serviceability, compared with pure gas formula air cushion in the past, will have many good characteristics.Though pure gas formula air cushion is widely applied on punching machine, due to the restriction of self structure, it has many inevitable defects.As when slide block clashes into air cushion, because air cushion is all the time by gases at high pressure upwards jack-up, easily produces strong vibration, thus make workpiece occur the phenomenons such as fold.The promising impact reducing to impact again, effective stretching travel of reduction air cushion of having to.Also have the pressure-pad-force of pure gas formula air cushion non-adjustable, easily occur situation about being pulled off.In addition, air cushion also cannot meet and ejects at a high speed, ejects the industrial requirements such as location, fast demoulding.
Utility model content
The purpose of this utility model is the above-mentioned defect overcoming the existence of existing machinery forcing press, propose a kind of punching machine hydraulic cushion control device, proportion of utilization two-way plug-in valve hydraulic control system, high-low pressure accumulator is adopted to control respectively, low pressure is satisfied ejects action fast, speed is controlled by proportional throttle valve, can realize the accurate control cushioned, synchronous, final shutheight is located; High pressure meets high pressure stripping action, by solenoid control switch motion, and the action of giving of the maximum release volume of high pressure accumulator total route proportional valve control and the demoulding; Drawing process adoption rate overflow valve carries out cushioning and Linear Control.Thus solve that the speed of ejecting is slow, impact noise is large, eject the problems such as position is uncontrollable, demoulding efficiency is low, tension impact is large, stretching travel is short, tensile pressures is non-adjustable.
The utility model adopts following technical scheme to realize: a kind of punching machine hydraulic cushion control device, comprise high voltage control oil circuit, low voltage control oil circuit and location back body, high voltage control oil circuit is connected with location back body with low voltage control oil circuit, high voltage control oil circuit comprises pump A, low voltage control oil circuit comprises pump B, and location back body comprises takes blame for others.
The pump A of high voltage control oil circuit and number one pressure valve plug-in unit, number one magnetic valve, number one filter is connected, number one overflow valve is communicated with number one magnetic valve and is communicated with number one pressure valve plug-in unit simultaneously, number one filter is communicated with number one check valve plug-in unit, number one check valve plug-in unit and number one accumulator, number one Pressure gauge, number one pressure sensor, pressure-reducing valve, high-voltage ratio choke valve is communicated with, pressure-reducing valve is communicated with number one check valve, number one check valve is connected with high-voltage ratio choke valve, high-voltage ratio choke valve and No. second magnetic valve, choke valve plug-in unit is communicated with, choke valve plug-in unit and No. second magnetic valve, No. second check valve is communicated with.
The pump B of low voltage control oil circuit is connected with No. three pressure valve plug-in unit, No. eight magnetic valve, No. second filter, No. three overflow valve is communicated with and is communicated with simultaneously No. three pressure valve plug-in unit with No. eight magnetic valve, No. second filter is communicated with No. three check valve plug-in unit, No. three check valve plug-in unit is communicated with low pressure proportional throttle valve, No. four Pressure gauge, No. four pressure sensor, No. three accumulator, No. five check valve, stop valve, No. five magnetic valve, No. four magnetic valve, No. three magnetic valve
The plug chamber of taking blame for others of location back body is communicated with No. second check valve, No. second Pressure gauge, No. second pressure sensor, No. second check valve plug-in unit, No. three check valve, No. second pressure valve plug-in unit, No. second overflow valve, No. six magnetic valve, No. second pressure valve plug-in unit is communicated with No. second overflow valve, No. six magnetic valve, proportional pressure control valve is communicated with No. six magnetic valve, and No. three check valve is communicated with No. seven magnetic valve.
High-voltage ratio choke valve is communicated with magnetic valve, choke valve plug-in unit, choke valve plug-in unit is communicated with magnetic valve, check valve, and plug chamber of taking blame for others is communicated with check valve, Pressure gauge, pressure sensor, check valve plug-in unit, check valve, pressure valve plug-in unit, overflow valve, magnetic valve.
Check valve plug-in unit is communicated with low pressure proportional throttle valve, Pressure gauge, pressure sensor, accumulator, check valve, stop valve, magnetic valve, magnetic valve, magnetic valve, low pressure proportional throttle valve is communicated with direction valve plug-in unit, direction valve plug-in unit, and direction valve plug-in unit is communicated with magnetic valve, check valve plug-in unit.
Take blame for others bar chamber and direction valve plug-in unit, dynamically valve plug-in unit is communicated with, and dynamic valve plug-in unit is communicated with magnetic valve, pressure valve plug-in unit, check valve.
Proportional throttle valve controls high-low pressure oil circuit control respectively, and does not have bar oil circuit to be all parallel with accumulator, to meet the traffic demand that quick acting of taking blame for others is; The external control oil of two proportional throttle valves is external separately, and provides stable oil pressure by an accumulator; The control of the high speed motion passing ratio choke valve of taking blame for others; Tensile pressures passing ratio overflow valve controls.
The high pressure that the utility model punching machine hydraulic cushion control device can realize taking blame for others ejects, and low-pressure ejecting, ejects location, takes blame for others and returns, and stretching is return, high-pressure liquid-filling, the reliable control of low pressure topping up seven actions.
The operation principle of the utility model punching machine hydraulic cushion control device is as follows:
High pressure ejects, electromagnet YV1, electromagnet YV4, electromagnet YV8 are energized, and proportional throttle valve YAA is to signal, and system pressure valve plug-in unit is closed, pump A high-pressure oil flow is out through filter, direction valve plug-in unit, high-voltage ratio choke valve, choke valve plug-in unit, check valve enters the plug chamber of taking blame for others, and the hydraulic oil simultaneously in high pressure accumulator also flows through high-voltage ratio choke valve, choke valve plug-in unit, check valve enters the plug chamber of taking blame for others, and the oil in bar chamber of taking blame for others, by dynamic valve plug-in unit oil return box, realizes high-pressure jack and goes out action.
Low-pressure ejecting, electromagnet YV2, electromagnet YV4, electromagnet YV5 are energized, proportional throttle valve YAB is to signal, system pressure valve plug-in unit is closed, pump B low pressure oil out flows through filter, direction valve plug-in unit, low pressure proportional throttle valve, direction valve plug-in unit, direction valve plug-in unit enter the plug chamber of taking blame for others, hydraulic oil simultaneously in low pressure accumulator also flows through low pressure proportional throttle valve, direction valve plug-in unit, check valve plug-in unit enter the plug chamber of taking blame for others, take blame for others the oil in bar chamber by dynamic valve plug-in unit oil return box, realizes low-pressure ejecting action.
Eject location, electromagnet YV4, electromagnet YV7 are energized, and the hydraulic oil in low pressure accumulator flows through magnetic valve YA7, check valve enters the plug chamber of taking blame for others, and the oil in bar chamber of taking blame for others, by dynamic valve plug-in unit oil return box, realizes ejecting location action.
Take blame for others and return, electromagnet YV2, electromagnet YV3, electromagnet YV6 are energized, proportional throttle valve YAB is to signal, system pressure valve plug-in unit is closed, pump B low pressure oil out flows through filter, check valve plug-in unit, low pressure proportional throttle valve, direction valve plug-in unit enter the bar chamber of taking blame for others, hydraulic oil simultaneously in low pressure accumulator also flows through low pressure proportional throttle valve, direction valve plug-in unit enters the bar chamber of taking blame for others, and the oil in plug chamber of taking blame for others, by pressure valve plug-in unit, check valve oil return box, realizes ejecting returning action.
Stretching is return, electromagnet YV4, electromagnet YV6 is energized, proportional pressure control valve YAC is to signal, to take blame for others passive returning, the oil filling in chamber of taking blame for others steadily is released via pressure valve plug-in unit, the oil part that pressure valve plug-in unit is released arrives via dynamic valve plug-in unit bar chamber of taking blame for others and carries out repairing, a part is via check valve oil return box, the controlled pressure of pressure valve plug-in unit is accurately controlled by proportional pressure control valve, simultaneously when pulling action just starts, electromagnet YV7 is energized instantaneously, disconnect afterwards, fluid instantaneously in low pressure accumulator flows through magnetic valve YA7, check valve enters the plug chamber repairing of taking blame for others, object makes stretching pressurization steady.
High-pressure liquid-filling, electromagnet YV1 is energized, and system pressure valve plug-in unit is closed, and pump A hydraulic oil out, flows through filter, check valve plug-in unit enters high pressure accumulator, realize high-pressure liquid-filling.
Low pressure topping up, electromagnet YV2 is energized, and system pressure valve plug-in unit is closed, and pump B low pressure oil out, flows through filter, check valve plug-in unit enters accumulator.Fluid flows through another check valve further and enters the outer controlled energy accumulator of proportional throttle valve simultaneously, realizes low pressure topping up.
The beneficial effects of the utility model are:
The utility model punching machine hydraulic cushion control device, it be the high frequency sound performance of proportion of utilization throttle cartridge valve in turn ensure that realizing that low pressure ejects fast, while high-voltage high-speed stripping action action buffering, synchronously and accurately control; Adopt moment repairing and proportional pressure control valve to the Linear Control of pressure at drawing process, thus solve that the speed of ejecting is slow, impact noise is large, eject the problems such as position is uncontrollable, demoulding efficiency is low, tension impact is large, stretching travel is short, tensile pressures is non-adjustable.This device can be widely used in taking blame for others with big machinery forcing press when carrying out complicated technology action and requiring and control.
Accompanying drawing explanation
Fig. 1 is hydraulic schematic diagram of the present utility model.
In figure: 1 number one magnetic valve, 2 number one overflow valves, 3 number one pressure valve plug-in units, 4 pump A, 5 number one pressure sensors, 6 number one Pressure gauges, 7 number one filters, 8 number one check valve plug-in units, 9 number one accumulators, 10 pressure-reducing valves, 11 number one check valves, 12 high-voltage ratio choke valves, 13 choke valve plug-in units, 14 No. second magnetic valves, 15 No. second check valves, 16 No. second check valve plug-in units, 17 No. second pressure sensors, 18 No. second Pressure gauges, 19 take blame for others, 20 No. three magnetic valves, 21 number one direction valve plug-in units, 22 No. four magnetic valves, 23 No. second direction valve plug-in units, 24 dynamic valve plug-in units, 25 No. five magnetic valves, 26 low pressure proportional throttle valves, 27 No. second pressure valve plug-in units, 28 No. six magnetic valves, 29 No. second overflow valves, 30 proportional pressure control valves, 31 No. three check valves, 32 No. seven magnetic valves, 33 No. four check valves, 34 No. second accumulators, 35 No. three pressure sensors, 36 No. three Pressure gauges, 37 No. three accumulators, 38 No. five check valves, 39 No. four pressure sensors, 40 stop valves, 41 No. four Pressure gauges, 42 No. three check valve plug-in units, 43 No. eight magnetic valves, 44 No. three overflow valves, 45 No. three pressure valve plug-in units, 46 No. second filters, 47 pump B.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, punching machine hydraulic cushion control device described in the utility model, comprise high voltage control oil circuit, low voltage control oil circuit and location back body, high voltage control oil circuit is connected with location back body with low voltage control oil circuit, high voltage control oil circuit comprises pump A4, low voltage control oil circuit comprises pump B47, and location back body comprises takes blame for others 19.
The pump A4 of high voltage control oil circuit and number one pressure valve plug-in unit 3, number one magnetic valve 1, number one filter 7 is connected, number one overflow valve 2 is communicated with number one magnetic valve 1 and is communicated with number one pressure valve plug-in unit 3 simultaneously, number one filter 7 is communicated with number one check valve plug-in unit 8, number one check valve plug-in unit 8 and number one accumulator 9, number one Pressure gauge 6, number one pressure sensor 5, pressure-reducing valve 10, high-voltage ratio choke valve 12 is communicated with, pressure-reducing valve 10 is communicated with number one check valve 11, number one check valve 11 is connected with high-voltage ratio choke valve 12, high-voltage ratio choke valve 12 and No. second magnetic valve 14, choke valve plug-in unit 13 is communicated with, choke valve plug-in unit 13 and No. second magnetic valve 14, No. second check valve 15 is communicated with.
The pump B47 of low voltage control oil circuit is connected with No. three pressure valve plug-in unit 45, No. eight magnetic valve 43, No. second filter 46, No. three overflow valve 44 is communicated with and is communicated with simultaneously No. three pressure valve plug-in unit 45 with No. eight magnetic valve 43, No. second filter 46 is communicated with No. three check valve plug-in unit 42, and No. three check valve plug-in unit 42 is communicated with low pressure proportional throttle valve 26, No. four Pressure gauge 41, No. four pressure sensor 39, No. three accumulator 37, No. five check valve 38, stop valve 40, No. five magnetic valve 25, No. four magnetic valve 22, No. three magnetic valve 20.
15, No. second Pressure gauge in 19 plug chambeies and No. second check valve, 18, No. second pressure sensor, 17, No. second check valve plug-in unit 16 of taking blame for others of location back body, No. three check valve 31, No. second pressure valve plug-in unit 27, No. second overflow valve 29, No. six magnetic valve 28 are communicated with, No. second pressure valve plug-in unit 27 is communicated with No. second overflow valve 29, No. six magnetic valve 28, proportional pressure control valve 30 is communicated with No. six magnetic valve 28, and No. three check valve 31 is communicated with No. seven magnetic valve 32.
High-voltage ratio choke valve 12 is communicated with No. second magnetic valve 14, choke valve plug-in unit 13, choke valve plug-in unit 13 and No. second magnetic valve 14, No. second check valve 15 is communicated with, and 15, No. second Pressure gauge 18 in 19 plug chambeies and No. second check valve of taking blame for others, pressure sensor 17, No. second check valve plug-in unit 16, No. three check valve 31, No. second pressure valve plug-in unit 27, No. second overflow valve 29, magnetic valve 28 are communicated with.
No. three check valve plug-in unit 42 is communicated with low pressure proportional throttle valve 26, No. four Pressure gauge 41, pressure sensor 39, No. three accumulator 37, No. five check valve 38, stop valve 40, No. five magnetic valve 25, No. four magnetic valve 22, No. three magnetic valve 20, low pressure proportional throttle valve 26 is communicated with No. second direction valve plug-in unit 23, number one direction valve plug-in unit 21, and number one direction valve plug-in unit 21 and No. three magnetic valve 20, No. second check valve plug-in unit 16 is communicated with.
Take blame for others 19 bar chambeies and No. second direction valve plug-in unit 23, dynamically valve plug-in unit 24 is communicated with, and dynamic valve plug-in unit 24 and No. five magnetic valve 25, No. second pressure valve plug-in unit 27, No. four check valve 33 are communicated with.
Proportional throttle valve controls high-low pressure oil circuit control respectively, and does not have bar oil circuit to be all parallel with accumulator, to meet the traffic demand that 19 quick actings of taking blame for others are; The external control oil of two proportional throttle valves is external separately, and provides stable oil pressure by an accumulator; Take blame for others 19 the control of high speed motion passing ratio choke valve; Tensile pressures passing ratio overflow valve 30 controls.
As shown in Figure 1, punching machine hydraulic cushion control device described in the utility model, comprises pump, inserted valve, magnetic valve, filter, accumulator, overflow valve, proportional throttle valve, proportional pressure control valve 30, check valve etc.Pump A4 and number one pressure valve plug-in unit 3, number one magnetic valve 1, number one filter 7 is connected, and number one overflow valve 2 is communicated with number one magnetic valve 1 and is communicated with number one pressure valve plug-in unit 3 simultaneously, and number one filter 7 is communicated with number one check valve plug-in unit 8, number one check valve plug-in unit 8 and number one accumulator 9, number one Pressure gauge 6, number one pressure sensor 5, pressure-reducing valve 10, high-voltage ratio choke valve 12 is communicated with, and pressure-reducing valve 10 is communicated with number one check valve 11, number one check valve 11 and high-voltage ratio choke valve 12, low pressure proportional throttle valve 26, No. three pressure sensor 35, No. three Pressure gauge 36, No. five check valve 38 is communicated with, high-voltage ratio choke valve 12 and No. second magnetic valve 14, choke valve plug-in unit 13 is communicated with, choke valve plug-in unit 13 and No. second magnetic valve 14, No. second check valve 15 is communicated with, take blame for others 19 plug chambeies and No. second check valve 15, No. second Pressure gauge 18, No. second pressure sensor 17, No. second check valve plug-in unit 16, No. three check valve 31, No. second pressure valve plug-in unit 27, No. second overflow valve 29, No. six magnetic valve 28 is communicated with, No. second pressure valve plug-in unit 27 and No. second overflow valve 29, No. six magnetic valve 28 is communicated with, and proportional pressure control valve 30 is communicated with No. six magnetic valve 28, and No. three check valve 31 is communicated with No. seven magnetic valve 32, pump B47 and No. three pressure valve plug-in unit 45, No. eight magnetic valve 43, No. second filter 46 is connected, and No. three overflow valve 44 is communicated with and is communicated with simultaneously No. three pressure valve plug-in unit 45, No. second filter 46 with No. eight magnetic valve 43 and be communicated with No. three check valve plug-in unit 42, No. three check valve plug-in unit 42 and low pressure proportional throttle valve 26, No. four Pressure gauge 41, No. four pressure sensor 39, No. three accumulator 37, No. five check valve 38, stop valve 40, No. five magnetic valve 25, No. four magnetic valve 22, No. three magnetic valve 20 is communicated with, low pressure proportional throttle valve 26 and No. second direction valve plug-in unit 23, number one direction valve plug-in unit 21 is communicated with, number one direction valve plug-in unit 21 and No. three magnetic valve 20, No. second check valve plug-in unit 16 is communicated with, take blame for others 19 bar chambeies and No. second direction valve plug-in unit 23, dynamic valve plug-in unit 24 is communicated with, dynamic valve plug-in unit 24 and No. five magnetic valve 25, No. second pressure valve plug-in unit 27, No. four check valve 33 is communicated with, and No. second direction valve plug-in unit 23 is communicated with No. four magnetic valve 22, oil return and number one pressure valve plug-in unit 3, number one overflow valve 2, number one magnetic valve 1, pressure-reducing valve 10, high-voltage ratio choke valve 12, No. second magnetic valve 14, No. seven magnetic valve 32, No. six magnetic valve 28, No. second overflow valve 29, proportional pressure control valve 30, No. three magnetic valve 20, No. four magnetic valve 22, No. five magnetic valve 25, low pressure proportional throttle valve 26, No. eight magnetic valve 43, No. three overflow valve 44, No. three pressure valve plug-in unit 45, No. four check valve 33, stop valve 40 is communicated with.Magnetic valve, proportional pressure control valve 30 are board-like, and all the other control valves (comprising two proportional throttle valves) are two-way plug-in valve, and accumulator can be external.
The example of the utility model punching machine hydraulic cushion control device, it comprises pump, inserted valve, magnetic valve, filter, accumulator, overflow valve, proportional throttle valve, proportional pressure control valve 30, check valve etc.Pump A4 and number one pressure valve plug-in unit 3, number one magnetic valve 1, number one filter 7 is connected, and number one overflow valve 2 is communicated with number one magnetic valve 1 and is communicated with number one pressure valve plug-in unit 3 simultaneously, and number one filter 7 is communicated with number one check valve plug-in unit 8, number one check valve plug-in unit 8 and number one accumulator 9, number one Pressure gauge 6, number one pressure sensor 5, pressure-reducing valve 10, high-voltage ratio choke valve 12 is communicated with, and pressure-reducing valve 10 is communicated with number one check valve 11, number one check valve 11 and high-voltage ratio choke valve 12, low pressure proportional throttle valve 26, No. three pressure sensor 35, No. three Pressure gauge 36, No. five check valve 38 is communicated with, high-voltage ratio choke valve 12 and No. second magnetic valve 14, choke valve plug-in unit 13 is communicated with, choke valve plug-in unit 13 and No. second magnetic valve 14, No. second check valve 15 is communicated with, take blame for others 19 plug chambeies and No. second check valve 15, No. second Pressure gauge 18, No. second pressure sensor 17, No. second check valve plug-in unit 16, No. three check valve 31, No. second pressure valve plug-in unit 27, No. second overflow valve 29, No. six magnetic valve 28 is communicated with, No. second pressure valve plug-in unit 27 and No. second overflow valve 29, No. six magnetic valve 28 is communicated with, and proportional pressure control valve 30 is communicated with No. six magnetic valve 28, and No. three check valve 31 is communicated with No. seven magnetic valve 32, pump B47 and No. three pressure valve plug-in unit 45, No. eight magnetic valve 43, No. second filter 46 is connected, and No. three overflow valve 44 is communicated with and is communicated with simultaneously No. three pressure valve plug-in unit 45, No. second filter 46 with No. eight magnetic valve 43 and be communicated with No. three check valve plug-in unit 42, No. three check valve plug-in unit 42 and low pressure proportional throttle valve 26, No. four Pressure gauge 41, No. four pressure sensor 39, No. three accumulator 37, No. five check valve 38, stop valve 40, No. five magnetic valve 25, No. four magnetic valve 22, No. three magnetic valve 20 is communicated with, low pressure proportional throttle valve 26 and No. second direction valve plug-in unit 23, number one direction valve plug-in unit 21 is communicated with, number one direction valve plug-in unit 21 and No. three magnetic valve 20, No. second check valve plug-in unit 16 is communicated with, take blame for others 19 bar chambeies and No. second direction valve plug-in unit 23, dynamic valve plug-in unit 24 is communicated with, dynamic valve plug-in unit 24 and No. five magnetic valve 25, No. second pressure valve plug-in unit 27, No. four check valve 33 is communicated with, and No. second direction valve plug-in unit 23 is communicated with No. four magnetic valve 22, oil return and number one pressure valve plug-in unit 3, number one overflow valve 2, number one magnetic valve 1, pressure-reducing valve 10, high-voltage ratio choke valve 12, No. second magnetic valve 14, No. seven magnetic valve 32, No. six magnetic valve 28, No. second overflow valve 29, proportional pressure control valve 30, No. three magnetic valve 20, No. four magnetic valve 22, No. five magnetic valve 25, low pressure proportional throttle valve 26, No. eight magnetic valve 43, No. three overflow valve 44, No. three pressure valve plug-in unit 45, No. four check valve 33, stop valve 40 is communicated with.
The utility model punching machine hydraulic cushion control device can realize taking blame for others 19 high pressure eject, low-pressure ejecting, ejects location, takes blame for others and returns, and stretching is return, high-pressure liquid-filling, the reliable control of low pressure topping up seven actions.
The operation principle of the utility model punching machine hydraulic cushion control device is as follows:
High pressure ejects, electromagnet YV1, electromagnet YV4, electromagnet YV8 is energized, proportional throttle valve YAA is to signal, number one pressure valve plug-in unit 3 is closed, pump A4 high-pressure oil flow is out through number one filter 7, number one check valve plug-in unit 8, high-voltage ratio choke valve 12, choke valve plug-in unit 13, No. second check valve 15 enter take blame for others 19 plug chamber, the hydraulic oil of number one accumulator 9 li also sequentially flows through high-voltage ratio choke valve 12 simultaneously, choke valve plug-in unit 13, No. second check valve 15 enter take blame for others 19 plug chamber, take blame for others 19 the oil in bar chamber by dynamic valve plug-in unit 24, No. four check valve 33 oil return box, realize high-pressure jack and go out action.
Low-pressure ejecting, electromagnet YV2, electromagnet YV4, electromagnet YV5 is energized, proportional throttle valve YAB is to signal, No. three pressure valve plug-in unit 45 is closed, pump B47 low pressure oil out flows through No. second filter 46, No. three check valve plug-in unit 42, low pressure proportional throttle valve 26, number one direction valve plug-in unit 21, direction valve plug-in unit 16 enter take blame for others 19 plug chamber, simultaneously the hydraulic oil of No. three accumulator 37 li also flows through low pressure proportional throttle valve 26, number one direction valve plug-in unit 21, No. second check valve plug-in unit 16 enter take blame for others 19 plug chamber, take blame for others the oil in 19 bar chambeies by dynamic valve plug-in unit 24, No. four check valve 33 oil return box, realize low-pressure ejecting action.
Eject location, electromagnet YV4, electromagnet YV7 are energized, the hydraulic oil of No. three accumulator 37 li flows through No. seven magnetic valve 32, No. three check valve 31 enter take blame for others 19 plug chamber, take blame for others the oil in 19 bar chambeies by dynamic valve plug-in unit 24, No. four check valve 33 oil return box, realizes ejecting location action.
Take blame for others and return, electromagnet YV2, electromagnet YV3, electromagnet YV6 is energized, proportional throttle valve YAB is to signal, No. three pressure valve plug-in unit 45 is closed, pump B47 low pressure oil out, flow through No. second filter 46, No. three check valve plug-in unit 42, low pressure proportional throttle valve 26, No. second direction valve plug-in unit 23 enter take blame for others 19 bar chamber, simultaneously the hydraulic oil of No. three accumulator 37 li also flows through low pressure proportional throttle valve 26, No. second direction valve plug-in unit 23 enter take blame for others 19 bar chamber, take blame for others the oil in 19 plug chambeies by No. second pressure valve plug-in unit 27 No. four check valve 33 oil return box, realization is taken blame for others and is return action.
Stretching is return, electromagnet YV4, electromagnet YV6 is energized, proportional pressure control valve 30YAC is to signal, take blame for others and 19 passively to return, the oil in 19 plug chambeies of taking blame for others steadily is released via No. second pressure valve plug-in unit 27, the oil part that No. second pressure valve plug-in unit 27 is released arrives via dynamic valve plug-in unit 24 19 bar chambeies of taking blame for others and carries out repairing, a part is via No. four check valve 33 oil return box, the controlled pressure of No. second pressure valve plug-in unit 27 is accurately controlled by proportional pressure control valve 30, simultaneously when pulling action just starts, electromagnet YV7 is energized instantaneously, disconnect afterwards, moment, the hydraulic oil of No. three accumulator 37 li also flowed through No. seven magnetic valve 32, No. three check valve 31 enter take blame for others 19 the repairing of plug chamber, object makes stretching pressurization steady.
High-pressure liquid-filling, electromagnet YV1 is energized, and number one pressure valve plug-in unit 3 is closed, pump A4 hydraulic oil out, flows through number one filter 7, number one check valve plug-in unit 8 enters number one accumulator 9, realize high-pressure liquid-filling.
Low pressure topping up, electromagnet YV2 is energized, and No. three pressure valve plug-in unit 45 is closed, pump B47 low pressure oil out, flows through No. second filter 46, No. three check valve plug-in unit 42 enters No. three accumulator 37.Fluid flows through No. five check valve 38 further and enters No. second accumulator 34 simultaneously, realizes low pressure topping up.
Table one is the sequence of movement table of above-mentioned principle.
Certainly, foregoing is only preferred embodiment of the present utility model, can not be considered to for limiting scope of embodiments of the present utility model.The utility model is also not limited in above-mentioned citing, and equalization change and improvement etc. that those skilled in the art make in essential scope of the present utility model, all should belong in patent covering scope of the present utility model.
Claims (8)
1. a punching machine hydraulic cushion control device, it is characterized in that: comprise high voltage control oil circuit, low voltage control oil circuit and location back body, high voltage control oil circuit is connected with location back body with low voltage control oil circuit, high voltage control oil circuit comprises pump A(4), low voltage control oil circuit comprises pump B(47), location back body comprises take blame for others (19).
2. punching machine hydraulic cushion control device according to claim 1, it is characterized in that: the pump A(4 of high voltage control oil circuit) and number one pressure valve plug-in unit (3), number one magnetic valve (1), number one filter (7) is connected, number one overflow valve (2) is communicated with number one magnetic valve (1) and is communicated with number one pressure valve plug-in unit (3) simultaneously, number one filter (7) is communicated with number one check valve plug-in unit (8), number one check valve plug-in unit (8) and number one accumulator (9), number one Pressure gauge (6), number one pressure sensor (5), pressure-reducing valve (10), high-voltage ratio choke valve (12) is communicated with, pressure-reducing valve (10) is communicated with number one check valve (11), number one check valve (11) is connected with high-voltage ratio choke valve (12), high-voltage ratio choke valve (12) and No. second magnetic valve (14), choke valve plug-in unit (13) is communicated with, choke valve plug-in unit (13) and No. second magnetic valve (14), No. second check valve (15) is communicated with.
3. punching machine hydraulic cushion control device according to claim 1, it is characterized in that: the pump B(47 of low voltage control oil circuit) and No. three pressure valve plug-in unit (45), No. eight magnetic valve (43), No. second filter (46) is connected, No. three overflow valve (44) is communicated with and is communicated with simultaneously No. three pressure valve plug-in unit (45) with No. eight magnetic valve (43), No. second filter (46) is communicated with No. three check valve plug-in unit (42), No. three check valve plug-in unit (42) and low pressure proportional throttle valve (26), No. four Pressure gauge (41), No. four pressure sensor (39), No. three accumulator (37), No. five check valve (38), stop valve (40), No. five magnetic valve (25), No. four magnetic valve (22), No. three magnetic valve (20) is communicated with.
4. punching machine hydraulic cushion control device according to claim 1, it is characterized in that: take blame for others (19) plug chamber and No. second check valve (15) of location back body, No. second Pressure gauge (18), No. second pressure sensor (17), No. second check valve plug-in unit (16), No. three check valve (31), No. second pressure valve plug-in unit (27), No. second overflow valve (29), No. six magnetic valve (28) is communicated with, No. second pressure valve plug-in unit (27) and No. second overflow valve (29), No. six magnetic valve (28) is communicated with, proportional pressure control valve (30) is communicated with No. six magnetic valve (28), No. three check valve (31) is communicated with No. seven magnetic valve (32).
5. punching machine hydraulic cushion control device according to claim 1, it is characterized in that: high-voltage ratio choke valve (12) and No. second magnetic valve (14), choke valve plug-in unit (13) is communicated with, choke valve plug-in unit (13) and No. second magnetic valve (14), No. second check valve (15) is communicated with, to take blame for others (19) plug chamber and No. second check valve (15), No. second Pressure gauge (18), No. second pressure sensor (17), No. second check valve plug-in unit (16), No. three check valve (31), No. second pressure valve plug-in unit (27), No. second overflow valve (29), No. six magnetic valve (28) is communicated with.
6. punching machine hydraulic cushion control device according to claim 1, it is characterized in that: No. three check valve plug-in unit (42) and low pressure proportional throttle valve (26), No. four Pressure gauge (41), No. four pressure sensor (39), No. three accumulator (37), No. five check valve (38), stop valve (40), No. five magnetic valve (25), No. four magnetic valve (22), No. three magnetic valve (20) is communicated with, low pressure proportional throttle valve (26) and No. second direction valve plug-in unit (23), number one direction valve plug-in unit (21) is communicated with, number one direction valve plug-in unit (21) and No. three magnetic valve (20), No. second check valve plug-in unit (16) is communicated with.
7. punching machine hydraulic cushion control device according to claim 1, it is characterized in that: (19) bar chamber of taking blame for others is communicated with No. second direction valve plug-in unit (23), dynamically valve plug-in unit (24), and dynamic valve plug-in unit (24) is communicated with No. five magnetic valve (25), No. second pressure valve plug-in unit (27), No. four check valve (33).
8. punching machine hydraulic cushion control device according to claim 1, is characterized in that: proportional throttle valve controls high-low pressure oil circuit control respectively, and does not have bar oil circuit to be all parallel with accumulator, to meet the traffic demand that (19) quick acting of taking blame for others is; The external control oil of two proportional throttle valves is external separately, and provides stable oil pressure by an accumulator; To take blame for others the control of high speed motion passing ratio choke valve of (19); Tensile pressures passing ratio overflow valve (30) controls.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579048.2U CN205009649U (en) | 2015-08-04 | 2015-08-04 | Mechanical press hydraulic die cushion controlling means |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520579048.2U CN205009649U (en) | 2015-08-04 | 2015-08-04 | Mechanical press hydraulic die cushion controlling means |
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| CN205009649U true CN205009649U (en) | 2016-02-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050772A (en) * | 2016-08-16 | 2016-10-26 | 江苏国力锻压机床有限公司 | Quick stable main cylinder hydraulic system |
| CN106391818A (en) * | 2016-09-19 | 2017-02-15 | 南通市腾达锻压机床厂 | Independent quick drive hydraulic system of hydraulic cushion of large-table-board hydraulic sheet metal drawing press |
| CN110871591A (en) * | 2019-11-26 | 2020-03-10 | 重庆江东机械有限责任公司 | High-speed forming press control system |
-
2015
- 2015-08-04 CN CN201520579048.2U patent/CN205009649U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050772A (en) * | 2016-08-16 | 2016-10-26 | 江苏国力锻压机床有限公司 | Quick stable main cylinder hydraulic system |
| CN106391818A (en) * | 2016-09-19 | 2017-02-15 | 南通市腾达锻压机床厂 | Independent quick drive hydraulic system of hydraulic cushion of large-table-board hydraulic sheet metal drawing press |
| CN110871591A (en) * | 2019-11-26 | 2020-03-10 | 重庆江东机械有限责任公司 | High-speed forming press control system |
| CN110871591B (en) * | 2019-11-26 | 2021-04-20 | 重庆江东机械有限责任公司 | High-speed forming press control system |
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Address after: 272001 Shandong city of Jining province high tech Zone Haichuan Road No. 66 Patentee after: Shandong Taifeng intelligent control Limited by Share Ltd Address before: 272001 Shandong city of Jining province high tech Zone Haichuan Road No. 66 Patentee before: Shandong Taifeng Hydraulic Co., Ltd. |