Hydraulic forming equipment
Technical field
The present invention designs a kind of hydraulic forming equipment.
Background technology
Supercharging device in the existing hydraulic forming equipment adopts the pressure increase that will be hanged down hydraulic fluid by the mode of driven by motor high-low pump, and the high pressure liquid of output is driven into carries out expander in the pipe fitting.This supercharging device, the power of consumption is very big, and because high and low press pump is not very sensitive for speed with starting the control that stops, having influenced the crudy of pipe fitting.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic forming equipment that has supercharging device self-locking system, that be convenient to control, this supercharging device has well guaranteed the quality of workpiece in the hydraulic pressure process.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of hydraulic forming equipment, it comprises main cylinder pressure, be arranged on finishing die, the separation of main cylinder pressure below the liftout cylinder that is arranged on the finishing die below, be arranged on liftout cylinder top workbench, be arranged on the workbench both sides thrust device, be used for supercharging device to work piece supply liquid, it is characterized in that:
Supercharging device comprise be used for low pressure liquid be pressurized to high pressure liquid booster body, be used for providing the driving mechanism of power to booster body;
Booster body comprises that first cylinder barrel, an end slidably are inserted in the first piston of the first cylinder barrel inside, first piston and the mutually airtight connection of the inwall of first cylinder barrel, be formed with liquid storage cylinder between the part inwall of the first piston and first cylinder barrel, first cylinder barrel is provided with an outlet that is connected with liquid storage cylinder, the cross-sectional area of outlet is less than the cross-sectional area of liquid storage cylinder, and first piston is in transmission connection mutually with driving mechanism;
Driving mechanism comprises motor, screw rod, the nut that is meshed with screw rod, and any one in two parts of screw rod and nut is in transmission connection mutually with motor, and another the direction of motion is in transmission connection mutually with first piston.
Supercharging device also comprises a casing that is used for carrying to liquid storage cylinder liquid, the setting that casing is connected with liquid storage cylinder.Motor is a servomotor.
Because the employing of technique scheme, the present invention compared with prior art has the following advantages:
Design and manufacture a kind of hydraulic forming equipment that has the supercharging device different, and reached technique effect same as the prior art with conventional art;
Adopted servomotor, high pressure liquid fluid speed is relevant with rotating speed of motor, and servomotor is a kind of control and feedback device accurately, and it also can well be controlled and begins and the concluding time;
The plunger booster system that has been in transmission connection on the output of servomotor is a kind of pressure charging system of being convenient to control;
Increased by screw rod and nut and formed propulsive mechanism, on the basis of above-mentioned booster body, increased auto-lock function, when servomotor stops operating, the propulsive mechanism that is used to connect servomotor and booster body is self-locking in the state that stops eve, like this, the pressure on the booster body not because of servomotor stop to reduce pressure, guaranteed the fluid quality of high pressure liquid.
Description of drawings
Accompanying drawing 1 is a front view of the present invention, has provided the annexation of each several part;
Accompanying drawing 2 is a side view of the present invention, has provided the annexation of supercharging device and shaped by fluid pressure equipment;
Accompanying drawing 3 is the front view of supercharging device part of the present invention, has provided the annexation of each part of the present invention;
Accompanying drawing 4 has provided a kind of embodiment that more has of supercharging device part of the present invention;
Wherein:
1, driving mechanism; 11, motor; 121, screw rod; 122, nut; 13, deceleration device; 14, chain
2, booster body; 21, passage; 22, first cylinder barrel; 23, second cylinder barrel; 24, oil through; 25, first piston; 26, second piston; 27, liquid storage cylinder; 29, outlet;
3, the 3rd piston; 31, push rod; 4, casing;
5, high pressure liquid derives parts;
61, main cylinder pressure; 62, finishing die; 63, liftout cylinder; 64, workbench; 65, thrust device; 66, supercharging device.
The specific embodiment
A kind of hydraulic forming equipment, comprise main cylinder pressure 61, be arranged on main cylinder pressure 61 belows finishing die 62, the liftout cylinder 63 that is arranged on finishing die 62 belows that separates, be arranged on liftout cylinder 63 tops workbench 64, be arranged on workbench 64 both sides thrust device 65, be used for supercharging device 66 to work piece supply liquid, supercharging device 66 comprise be used for low pressure liquid be pressurized to high pressure liquid booster body 2, be used for providing the driving mechanism 1 of power to booster body 2;
Booster body 2 comprises that first cylinder barrel 22, an end slidably are inserted in the first piston 25 of first cylinder barrel, 22 inside, first piston 25 and the mutually airtight connection of the inwall of first cylinder barrel 22, be formed with liquid storage cylinder 27 between the part inwall of the first piston 25 and first cylinder barrel, first cylinder barrel 22 is provided with an outlet 29 that is connected with liquid storage cylinder 27, the cross-sectional area of outlet 29 is less than the cross-sectional area of liquid storage cylinder 27, and first piston 25 is in transmission connection mutually with driving mechanism 1;
Driving mechanism 1 comprises motor 11, screw rod 121, the nut 122 that is meshed with screw rod 121, and any one in 122 two parts of screw rod 121 and nut is in transmission connection mutually with motor 11, and another the direction of motion is in transmission connection mutually with first piston 25.Motor 11 is a servomotor.
Supercharging device 66 also comprises a casing 4 that is used for carrying to liquid storage cylinder 27 liquid, the setting that casing 4 is connected with liquid storage cylinder 27.
The liquid storage of liquid storage cylinder 27 partly is connected with a high pressure liquid and derives parts 5, and in the present embodiment, high pressure liquid derives the mode and outlet 29 settings that are connected that parts 5 adopt unidirectional conducting, will output to processed parts through the liquid of booster body supercharging.
As preferred embodiment, between first piston 25 and propulsive mechanism 12, also be provided with following mechanism:
Second cylinder barrel 23 of the setting that is connected with first cylinder barrel 22, sealing and slidably be arranged on second piston 26 and the 3rd piston 3 of second cylinder barrel, 23 inside, second piston 26 is fixedly connected with first piston 25, and the 3rd piston 3 is connected with nut 122 by push rod 31.Sealing is provided with fluid between second piston 26 and the 3rd piston 3.The part with the 3rd piston 3 homonymies of second cylinder barrel 23 is provided with a passage 21, be used for gas is fed in the chamber of the 3rd piston 3 one sides, the part with second piston, 26 homonymies of second cylinder barrel 23 is provided with an oil through 24, be used for fluid is imported in the chamber of homonymy, this part fluid has played the effect of lubricated and sealing.
Casing 4 comprises a low hydraulic fluid introduction part part that is provided with liquid storage cylinder 27 unidirectional conductings.In the present embodiment, the setting that low hydraulic fluid introduction part part and pore 29 link, low hydraulic fluid imports liquid storage cylinder 27 by low hydraulic fluid introduction part part and pore 29.
As preferred embodiment, the present invention can also realize two-stage supercharging in the following ways:
The part that is positioned at second piston, 26 right sides of second cylinder barrel 23 is decreased to the cross-sectional area that be positioned at three piston 3 left part of cross-sectional area less than second cylinder barrel 23, like this, on the basis of above-mentioned supercharging device, has realized two-stage supercharging.