CN202239422U - Rapid hydraulic forging press - Google Patents

Rapid hydraulic forging press Download PDF

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Publication number
CN202239422U
CN202239422U CN2011203127580U CN201120312758U CN202239422U CN 202239422 U CN202239422 U CN 202239422U CN 2011203127580 U CN2011203127580 U CN 2011203127580U CN 201120312758 U CN201120312758 U CN 201120312758U CN 202239422 U CN202239422 U CN 202239422U
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CN
China
Prior art keywords
pressure
switch
pumping plant
forging press
reversal valve
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011203127580U
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Chinese (zh)
Inventor
张书康
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张书康
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Priority to CN2011203127580U priority Critical patent/CN202239422U/en
Application granted granted Critical
Publication of CN202239422U publication Critical patent/CN202239422U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a rapid hydraulic forging press which comprises high pressure pump stations (1), low pressure pump stations (2), a low pressure energy accumulator (3), a medium pressure energy accumulator (4), reversing valves (5), incremental launching reversing valves (6), and the like, wherein the high pressure pump stations (1) are connected with the medium pressure energy accumulator (4) through a switching valve (7), connected with ejecting oil cylinders (9) through the incremental launching reversing valves (6), and further connected with main oil cylinders (8) through medium high pressure reversing valves (5-2); and the low pressure pump stations (2) and the low pressure energy accumulator (3) are further connected with the main oil cylinders (8) through low pressure reversing valves (5-1). The rapid hydraulic forging press disclosed by the utility model has the advantages of rapid forging speed, high production efficiency, energy conservation, multiple pressure supply, high alignment precision, low noises, small vibrations, high stability and good product quality.

Description

The fast hydraulic pressure forging press
Technical field
The utility model relates to a kind of hydrostatic forging equipment, particularly a kind of fast hydraulic pressure forging press.The utility model is applicable to that the forging equipment to workpiece such as blanks uses.The utility model belongs to mechanical molding's technical field of processing equipment.
Background technology
The English name of hydraulic press is hydraulic and oil press.Hydraulic press is claimed hydraulic forming press or hydraulic forging press again, is the equipment that is used for various metals and nonmetallic materials processing and forming.Hydraulic forging press promotes oil cylinder through control system control hydraulic system and drives the work that upper and lower mould is accomplished the forging workpiece.Existing hydraulic forging press includes high pressure pumping plant, intermediate-pressure accumulator, reversal valve, transfer valve, master cylinder, ejects oil cylinder, also includes pressure switch, and the high pressure pumping plant is connected with intermediate-pressure accumulator through transfer valve.Though existing hydraulic forging press can be accomplished the forging and pressing of workpiece; But exist following defective: have only a cover high pressure pumping plant, intermediate-pressure accumulator in the hydraulic forging press; It is slow that the high pressure pumping plant ejects the speed of oil cylinder, and a kind of forging pressure only is provided, and forge speed is slow in the process of hydraulic press forging workpiece, production efficiency is low; Power consumption is big; And be unfavorable for that Workpiece shaping, upper and lower mould aligning accuracy are poor, can't accomplish, also exist the noise problem big with vibration to forging the forging of the high workpiece of required precision.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes prior art, provide a kind of multiple pressure can be provided, forge speed is fast, production efficiency is high, energy-conservation, aligning accuracy is high, noise is little, vibration is little, the fast hydraulic pressure forging press of good stability, good product quality.
Realize that the above-mentioned purpose technical scheme is: a kind of fast hydraulic pressure forging press; Include high pressure pumping plant, intermediate-pressure accumulator, reversal valve, transfer valve, master cylinder, eject oil cylinder; Also include pressure switch, the high pressure pumping plant is connected with intermediate-pressure accumulator through transfer valve.The utility model also includes low pressure pumping plant, low pressure accumulator and top and moves back reversal valve; Described reversal valve is a combined directional valve; Combined directional valve is made up of low pressure reversal valve and mesohigh reversal valve; The high pressure pumping plant moves back reversal valve and ejects oil cylinder and be connected through the top, and the high pressure pumping plant also is connected with master cylinder through the mesohigh reversal valve, and the low pressure pumping plant is connected with master cylinder through the low pressure reversal valve with low pressure accumulator.
Further, also include travel switch being arranged on the master cylinder place and be arranged on No. two travel switches that eject the oil cylinder place.
Further, also include the Pressure gauge that is connected with master cylinder.
Further, described high pressure pumping plant and low pressure pumping plant are formed by motor and oil pump.
Further, described pressure switch comprise a pressure switch being connected with master cylinder, with No. three pressure switches that eject No. two pressure switches that oil cylinder is connected, link to each other and No. four pressure switches that are connected with intermediate-pressure accumulator with low pressure accumulator.
Further, the setting pressure of described No. two pressure switches is 10MPa, and the setting pressure of No. three pressure switches is 1.2MPa, and the setting pressure of No. four pressure switches is 15MPa.
Further, a described pressure switch is one group of pressure switch, is made up of A pressure switch, B pressure switch and C pressure switch.The setting pressure of further on this basis described A pressure switch is 31.5MPa, and the setting pressure of B pressure switch is 13MPa, and the setting pressure of C pressure switch is 1MPa.
After adopting technique scheme, have a lot of benefits:
(1) the utility model is owing to also include low pressure pumping plant, low pressure accumulator and reversal valve, and reversal valve is combined directional valve, and combined directional valve is made up of low pressure reversal valve and mesohigh reversal valve.The utlity model has low pressure accumulator and mesohigh accumulator two cover accumulators and high-pressure pump direct-furnish oil, so the utility model high, normal, basic three kinds of pressure that can automatically switch, forge speed is fast in the process of hydraulic forging press forging workpiece; Production efficiency is high; It is little to consume energy, and the conversion of these three kinds of pressure helps Workpiece shaping, and the upper and lower mould aligning accuracy is good; Can accomplish the forging of forging the high workpiece of required precision, realize finish forge.In addition, feasible no big noise of the structure of the utility model and vibration.
(2) the utility model is cut off the electricity supply when accumulator reaches the pressure of setting automatically, need not power consumption, few with few power consumption, good energy-conserving effect, usefulness often the time drive a few table oil pumps more, with can close a few table oil pumps after a little while, decide as required.Little can do more than hundred tons, and big can accomplish more than ten thousand tons.Because the utility model good stability can be equipped with numerical control hydraulic machinery hand, realizes full-automatic.
Therefore, the utility model fast hydraulic pressure forging press forge speed is fast, and production efficiency is high, and is energy-conservation, and multiple pressure is provided, and aligning accuracy is high, and noise is little, vibrate little, good stability, good product quality.
Description of drawings
Accompanying drawing is the work structuring sketch map of the utility model.
Among the figure: 1, high pressure pumping plant, 2, the low pressure pumping plant, 3, low pressure accumulator, 4, intermediate-pressure accumulator, 5, reversal valve; 5-1, low pressure reversal valve, 5-2, mesohigh reversal valve, 6, the top moves back reversal valve, 7, transfer valve, 8, master cylinder; 9, eject oil cylinder, 10, travel switches, 11, No. two travel switches, 12, pressure switches, 12-1, A pressure switch; 12-2, B pressure switch, 12-3, C pressure switch, 13, No. two pressure switches, 14, No. three pressure switches; 15, No. four pressure switches, 16, motor, 17, oil pump, 18, Pressure gauge.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Embodiment
Shown in accompanying drawing; A kind of fast hydraulic pressure forging press; Include high pressure pumping plant 1, intermediate-pressure accumulator 4, reversal valve 5, transfer valve 7, master cylinder 8, eject oil cylinder 9, also include low pressure pumping plant 2, low pressure accumulator 3 and top and move back reversal valve 6, also include a travel switch 10 that is arranged on master cylinder 8 places and be arranged on No. two travel switches 11 that eject oil cylinder 9 places; Also include the Pressure gauge 18 that is connected with master cylinder 8, also include pressure switch.High pressure pumping plant 1 is formed by motor 16 and oil pump 17 with low pressure pumping plant 2.High pressure pumping plant 1 is connected with intermediate-pressure accumulator 4 through transfer valve 7.Described reversal valve 5 is a combined directional valve, and combined directional valve is made up of low pressure reversal valve 5-1 and mesohigh reversal valve 5-2.High pressure pumping plant 1 moves back reversal valve 6 and ejects oil cylinder 9 and be connected through the top, and high pressure pumping plant 1 also is connected with master cylinder 8 through mesohigh reversal valve 5-2, and low pressure pumping plant 2 is connected with master cylinder 8 through low pressure reversal valve 5-1 with low pressure accumulator 3.
Described pressure switch comprise a pressure switch 12 being connected with master cylinder 8, with No. three pressure switches 14 that eject No. two pressure switches 13 that oil cylinder 9 is connected, link to each other and No. four pressure switches 15 that are connected with intermediate-pressure accumulator 4 with low pressure accumulator 3.The setting pressure of No. two pressure switches 13 is 10MPa, and the setting pressure of No. three pressure switches 14 is 1.2MPa, and the setting pressure of No. four pressure switches 15 is 15MPa.A pressure switch 12 is one group of pressure switch, is made up of A pressure switch 12-1, B pressure switch 12-2 and C pressure switch 12-3.The setting pressure of A pressure switch 12-1 is 31.5MPa, and the setting pressure of B pressure switch 12-2 is 13MPa, and the setting pressure of C pressure switch 12-3 is 1MPa.
The operation principle of the utility model is: the utlity model has low pressure accumulator and mesohigh accumulator two cover accumulators and high-pressure pump direct-furnish oil.Use 1~1.2MPa up and down during dry running at piston and piston rod and mould.When reality is forged, automatically with hand switch be transferred to automatic on.The self-insurance of often making war of floor push crawl, relay adhesive, the pressure switch 1-1.2MPa low pressure of master cylinder 8 is normally closed.Master cylinder 8 pressure raise when forging die is pressed onto workpiece, and pressure switch 12-3 low-pressure contact separates when rising 1MPa is above, presses the closing of contact among the pressure switch 12-2; Pressure, intermediate-pressure accumulator 4 fuel feeding in the switching; When forging moulding soon, the pressure of master cylinder 8 reaches 13MPa, and pressure switch 12-1 high-voltage contact is closed; Intermediate-pressure accumulator 4 oil circuits cut off, and start high pressure pumping plant 1 DFF Direct Fuel Feed simultaneously and give master cylinder 8.Because the closing of intermediate-pressure accumulator 4, by high pressure pumping plant 1 fuel feeding, delivery rate is slow, when having only intermediate-pressure accumulator 4 fuel feeding 1/tens of speed, helps the moulding of workpiece like this, and does not have excessive impulsive force, prolongs the service life of mould.Pressure also can be regulated pressure switch 12-1 according to the size of workpiece, the height of forging temperature up and down at any time at 31.5MPa, and manual adjustments is very convenient.When pressure reached the position of manual adjustments pressure, pressure switch 12-1 high pressure spot was closed, and low spot cuts off, and switches to the piston that low pressure withdraws from master cylinder 8.Eject when the travel switch 10 in the position that is withdrawn into setting switches to, when ejecting required height, No. two travel switch 11 closures that eject are pressed in the switching and are withdrawed from.Eject piston when falling back on the end when what eject oil cylinder 9, pressure switch 13 pressure raise, and when being elevated to 10MPa, cutting off the electricity supply and can guarantee that like this piston that ejects that ejects oil cylinder 9 falls back on the end, has guaranteed to eject the height of plug.Workpiece is forged, waits for the forging of workpiece next time.
Pressure switch in the utility model is to utilize the pressure of liquid to open and close the hydraulic pressure electric conversion element of electrical contact.When system pressure reaches the setting of pressure switch, send the signal of telecommunication, make electrical equipment action, make oil circuit release, switching-over, executive component is realized sequentially-operating, or disable motor quits work system, plays safeguard protection effect etc.
The utility model is not limited to the foregoing description, and all employings are equal to technical scheme that replacement or equivalence replacement form and all belong to the utility model and require the scope protected.

Claims (8)

1. fast hydraulic pressure forging press; Include high pressure pumping plant (1), intermediate-pressure accumulator (4), reversal valve (5), transfer valve (7), master cylinder (8), eject oil cylinder (9); Also include pressure switch; High pressure pumping plant (1) is connected with intermediate-pressure accumulator (4) through transfer valve (7); It is characterized in that: also include low pressure pumping plant (2), low pressure accumulator (3) and top and move back reversal valve (6); Described reversal valve (5) is a combined directional valve, and combined directional valve is made up of low pressure reversal valve (5-1) and mesohigh reversal valve (5-2), and high pressure pumping plant (1) moves back reversal valve (6) and ejects oil cylinder (9) and be connected through the top; High pressure pumping plant (1) also is connected with master cylinder (8) through mesohigh reversal valve (5-2), and low pressure pumping plant (2) is connected with master cylinder (8) through low pressure reversal valve (5-1) with low pressure accumulator (3).
2. fast hydraulic pressure forging press according to claim 1 is characterized in that: also include to be arranged on the travel switch (10) that master cylinder (8) locates and to be arranged on and eject No. two travel switches (11) that oil cylinder (9) is located.
3. fast hydraulic pressure forging press according to claim 1 is characterized in that: also include the Pressure gauge (18) that is connected with master cylinder (8).
4. fast hydraulic pressure forging press according to claim 1 is characterized in that: described high pressure pumping plant (1) and low pressure pumping plant (2) are formed by motor (16) and oil pump (17).
5. fast hydraulic pressure forging press according to claim 1 is characterized in that: described pressure switch comprise the pressure switch (12) that is connected with master cylinder (8), with eject No. two pressure switches (13), No. three pressure switches (14) that link to each other with low pressure accumulator (3) and No. four pressure switches (15) that are connected with intermediate-pressure accumulator (4) that oil cylinder (9) is connected.
6. fast hydraulic pressure forging press according to claim 5; It is characterized in that: the setting pressure of described No. two pressure switches (13) is 10MPa; The setting pressure of No. three pressure switches (14) is 1.2MPa, and the setting pressure of No. four pressure switches (15) is 15MPa.
7. fast hydraulic pressure forging press according to claim 5; It is characterized in that: a described pressure switch (12) is one group of pressure switch, is made up of A pressure switch (12-1), B pressure switch (12-2) and C pressure switch (12-3).
8. fast hydraulic pressure forging press according to claim 7; It is characterized in that: the setting pressure of described A pressure switch (12-1) is 31.5MPa; The setting pressure of B pressure switch (12-2) is 13MPa, and the setting pressure of C pressure switch (12-3) is 1MPa.
CN2011203127580U 2011-08-25 2011-08-25 Rapid hydraulic forging press Expired - Fee Related CN202239422U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203127580U CN202239422U (en) 2011-08-25 2011-08-25 Rapid hydraulic forging press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203127580U CN202239422U (en) 2011-08-25 2011-08-25 Rapid hydraulic forging press

Publications (1)

Publication Number Publication Date
CN202239422U true CN202239422U (en) 2012-05-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203127580U Expired - Fee Related CN202239422U (en) 2011-08-25 2011-08-25 Rapid hydraulic forging press

Country Status (1)

Country Link
CN (1) CN202239422U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102688968A (en) * 2012-06-15 2012-09-26 辽宁工程技术大学 Hydraulic air hammer controlling device
CN104226883A (en) * 2013-06-11 2014-12-24 镇江市申茂机械有限公司 Forged work-piece ejecting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102688968A (en) * 2012-06-15 2012-09-26 辽宁工程技术大学 Hydraulic air hammer controlling device
CN102688968B (en) * 2012-06-15 2014-04-02 辽宁工程技术大学 Hydraulic air hammer controlling device
CN104226883A (en) * 2013-06-11 2014-12-24 镇江市申茂机械有限公司 Forged work-piece ejecting device

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120530

Termination date: 20140825

EXPY Termination of patent right or utility model