CN2858113Y - Hydraulic pressure device of numerical control full hydraulic drop hammer - Google Patents
Hydraulic pressure device of numerical control full hydraulic drop hammer Download PDFInfo
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- CN2858113Y CN2858113Y CN 200520128397 CN200520128397U CN2858113Y CN 2858113 Y CN2858113 Y CN 2858113Y CN 200520128397 CN200520128397 CN 200520128397 CN 200520128397 U CN200520128397 U CN 200520128397U CN 2858113 Y CN2858113 Y CN 2858113Y
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Abstract
The utility model relates to a hydraulic pressure device of numerical control full hydraulic drop hammer which is controlled by NC technology, which includes a main oil cylinder, a hammer rod piston which divides the main oil cylinder into an upper chamber and a lower chamber, and the lower chamber is constantly open connected with an energy accumulator, and the upper chamber is connected to the energy accumulator and an oil tank through a strike valve which will open to the oil tank when hammer is being lifting and which will switch on to connect the energy accumulator when the hammer is striking, and the strike valve is a two-position fourway valve with controlling oil passages at both ends, and two oil inlet ports of the strike valve are respectively connected to the two oil passages of the upper chamber of the main oil cylinder, and two oil outlet ports are respectively connected to the oil tank and the energy accumulator, and the control oil passages disposed at the two ends of the strike valve are respectively connected to the energy accumulator and a main oil passage of a second pilot valve which is a two-position threeway valve, and a first pilot valve is also a two-position threeway valve and is used for controlling the second pilot valve, and the second pilot valve is used for controlling the strike valve. The utility model has advantages of reasonable structure, safety and reliability, facilitation for numerical controlling, easy manipulation, precisely control.
Description
Technical field
The utility model belongs to the forging equipment technical field of metal forming, specifically a kind of hydraulic means of the digital complete hydraulic die forging hammer that uses on the complete hydraulic die forging hammer that utilizes Numeric Control Technology to control.
Background technology
Domestic existing die hammer can be divided into steam and air stamping hammer, liquid gas die hammer, plain edition complete hydraulic die forging hammer.Steam and air stamping hammer is with steam or the compressed air hammer as driving medium, because during the air inlet of control valve control cavity of resorption (or epicoele), epicoele (or cavity of resorption) exhaust simultaneously, so energy utilization rate is very low.Liquid gas die hammer epicoele is the high pressure nitrogen of sealing, hits valve and controls cavity of resorption separately, and oil extraction is hit, hammer is carried in oil-feed, because cavity of resorption need be built pressure carrying hammer moment again, therefore vexed mould phenomenon is arranged, the master cylinder epicoele is an air cavity simultaneously, and cavity of resorption is an oil pocket, oil gas takes place easily scurry phenomenon mutually.Though the plain edition complete hydraulic die forging hammer is a master cylinder upper and lower cavity medium all is hydraulic oil, hitting valve is not combination valve, is split-body valve, and controlled by the one-level pilot valve, can't realize the accurate control of blow energy.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of blow energy can realize the hydraulic means of the complete hydraulic die forging hammer of Digital Control.
Technical solution of the present utility model is: comprise master cylinder, be arranged on the hammer stem piston that in the master cylinder master cylinder is divided into epicoele and cavity of resorption, the cavity of resorption and the accumulator of master cylinder often switch on, the epicoele of master cylinder is connected by hitting valve and accumulator and fuel tank, when carrying hammer, hitting valve and fuel tank connects, during strike, hit valve and accumulator and connect.Hitting valve is that two ends have two position four-way valves of controlling oil circuit, two oil-ins that hit valve connect two oil circuits of master cylinder epicoele respectively, two oil-outs of strike valve are connected tank and accumulator respectively, hits the control oil circuit difference turn-on accumulator and the secondary pilot valve working connection at valve two ends.The secondary pilot valve is a two-position three-way valve, and the one-level pilot valve is a two-position three-way valve, one-level pilot valve control secondary pilot valve, and valve is hit in the control of secondary pilot valve.
Described one-level pilot valve is that an end has back-moving spring, and the other end is the two-position three-way valve of magnetic valve, the commutation of solenoid control one-level pilot valve, and the control oil circuit of the working connection of one-level pilot valve and secondary pilot valve is connected.
Described secondary pilot valve is that two ends have the two-position three-way valve of controlling oil circuit, the control oil circuit of one end and accumulator are connected, the control oil circuit of the other end and the working connection of one-level pilot valve are connected, and the working connection of secondary pilot valve is connected with the control oil circuit that hits valve one end.
Be provided with main oil pump in fuel tank, the oil circuit of main oil pump and accumulator is provided with unloader, adjusts valve, and unloader and adjustment valve are connected in parallel in this oil circuit.In the oil circuit that master cylinder cavity of resorption and accumulator often switch on, be provided with safety valve.
The utility model has been arranged rationally hydraulic circuit reliably, the blow energy and the hitting process that have guaranteed this hammer are realized numerical control, and can guarantee that the required energy of forging does not produce extra impact kinetic energy again, therefore the life-span of mould improved greatly about some key components and parts such as hammer stem, tup reached, can obtain consistent blow energy and cycle with a kind of forging, so forging quality is comparatively stable.Therefore the utlity model has advantage rational in infrastructure, safe and reliable, as to be convenient to numerical control, flexible operation, precise control.
Description of drawings
Fig. 1 is a hydraulic schematic diagram of the present utility model.
The specific embodiment
Accompanying drawing 1 has been described embodiment of the present utility model.In this embodiment, three hydraulic valves are arranged, promptly unloader 9, hit valve 4, adjust valve 10 and elemental motions such as pilot valve 6,7 is realized pressurization, off-load, carried hammer, strike, adjustment.
Hitting valve 4 is the self-control combination valves that are subjected to the control of two-stage pilot valve, can realize master cylinder epicoele damping oil extraction function and the quick linkage function of upper and lower cavity respectively, and digitization system hits the length realization energy of the pilot valve closing time of valve and accurately controls by control.
Therefore the utility model comprises master cylinder 1, be arranged on the hammer stem piston 2 that in the master cylinder master cylinder is divided into epicoele and cavity of resorption, the cavity of resorption of master cylinder 1 and accumulator 3 often switch on, the epicoele of master cylinder 1 is connected with accumulator 3 and fuel tank 5 by hitting valve 4, when carrying hammer, hitting valve 4 connects with fuel tank 5, during strike, hitting valve 4 connects with accumulator 3, hit valve 4 and have two position four-way valves of controlling oil circuit for two ends, two oil-ins that hit valve 4 connect two oil circuits of master cylinder 1 epicoele respectively, two oil-outs of strike valve 4 are connected tank 5 and accumulator 3 respectively, hit the control oil circuit difference turn-on accumulator 3 and secondary pilot valve 6 working connections at valve 4 two ends, secondary pilot valve 6 is a two-position three-way valve, and one-level pilot valve 7 is a two-position three-way valve, one-level pilot valve 7 control secondary pilot valves 6, valve 4 is hit in 6 controls of secondary pilot valve.
Described one-level pilot valve 7 is that an end has back-moving spring, and the other end is the two-position three-way valve of magnetic valve, 7 commutations of solenoid control one-level pilot valve, and the control oil circuit of the working connection of one-level pilot valve 7 and secondary pilot valve 6 is connected.
Described secondary pilot valve 6 has the two-position three-way valve of controlling oil circuit for two ends, the control oil circuit of one end and accumulator 3 are connected, the control oil circuit of the other end and the working connection of one-level pilot valve 7 are connected, and the working connection of secondary pilot valve 6 is connected with the control oil circuit that hits valve 4 one ends.
Be provided with main oil pump 8 in fuel tank 5, main oil pump 8 is provided with unloader 9, adjusts valve 10 with the oil circuit of accumulator 3, and unloader 9 and adjustment valve 10 are connected in parallel in this oil circuit.In the oil circuit that master cylinder 1 cavity of resorption and accumulator 3 often switch on, be provided with safety valve 11.
The logical all the time accumulator of the constant pressure liquid potential source that the utility model adopts pump-accumulator-unloader to form, master cylinder cavity of resorption is a normal pressure, hits valve and controls epicoele separately, epicoele is connected fuel tank, realizes carrying hammer, and epicoele is connected cavity of resorption, the upper and lower cavity oil pressure equates that area is different, realizes " differential strike ".Hitting valve is the self-control combination valve that is subjected to the control of two-stage pilot valve, can realize master cylinder epicoele damping oil extraction function and the quick linkage function of upper and lower cavity respectively, and digitization system hits the length realization energy of the pilot valve closing time of valve and accurately controls by control.Described strike valve is a combination valve, be contained in the big valve piece, and controlled by the two-stage pilot valve, the elemental motion that has three hydraulic valves (be unloader, hit valve, adjust valve) to realize hammering into shape in the hydraulic means also can add cooling oil circuit and heating oil circuit etc. certainly in the oil circuit.
Claims (5)
1, a kind of hydraulic means of digital complete hydraulic die forging hammer comprises master cylinder (1), is arranged on the hammer stem piston (2) that in the master cylinder master cylinder is divided into epicoele and cavity of resorption, it is characterized in that:
The cavity of resorption of a, master cylinder (1) and accumulator (3) often switch on, and the epicoele of master cylinder (1) is connected with accumulator (3) and fuel tank (5) by hitting valve (4), when carrying hammer, hitting valve (4) connects with fuel tank (5), during strike, hit valve (4) and connect with accumulator (3)
B, strike valve (4) have two position four-way valves of controlling oil circuit for two ends, two oil-ins that hit valve (4) connect two oil circuits of master cylinder (1) epicoele respectively, two oil-outs of strike valve (4) are connected tank (5) and accumulator (3) respectively, hit the control oil circuit difference turn-on accumulator (3) and secondary pilot valve (6) working connection at valve (4) two ends
C, secondary pilot valve (6) they are two-position three-way valve, and one-level pilot valve (7) is a two-position three-way valve, one-level pilot valve (7) control secondary pilot valve (6), and valve (4) is hit in secondary pilot valve (6) control.
2, the hydraulic means of a kind of digital complete hydraulic die forging hammer according to claim 1, it is characterized in that: described one-level pilot valve (7) is that an end has back-moving spring, the other end is the two-position three-way valve of magnetic valve, solenoid control one-level pilot valve (7) commutation, the control oil circuit of the working connection of one-level pilot valve (7) and secondary pilot valve (6) is connected.
3, the hydraulic means of a kind of digital complete hydraulic die forging hammer according to claim 1, it is characterized in that: described secondary pilot valve (6) has the two-position three-way valve of controlling oil circuit for two ends, the control oil circuit of one end and accumulator (3) are connected, the working connection of the control oil circuit of the other end and one-level pilot valve (7) is connected, and the working connection of secondary pilot valve (6) is connected with the control oil circuit that hits valve (4) one ends.
4, the hydraulic means of a kind of digital complete hydraulic die forging hammer according to claim 1, it is characterized in that: in fuel tank (5), be provided with main oil pump (8), main oil pump (8) is provided with unloader (9), adjusts valve (10) with the oil circuit of accumulator (3), and unloader (9) and adjustment valve (10) are connected in parallel in this oil circuit.
5, the hydraulic means of a kind of digital complete hydraulic die forging hammer according to claim 1 is characterized in that: be provided with safety valve (11) in the oil circuit that master cylinder (1) cavity of resorption and accumulator (3) often switch on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520128397 CN2858113Y (en) | 2005-12-06 | 2005-12-06 | Hydraulic pressure device of numerical control full hydraulic drop hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520128397 CN2858113Y (en) | 2005-12-06 | 2005-12-06 | Hydraulic pressure device of numerical control full hydraulic drop hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2858113Y true CN2858113Y (en) | 2007-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520128397 Expired - Fee Related CN2858113Y (en) | 2005-12-06 | 2005-12-06 | Hydraulic pressure device of numerical control full hydraulic drop hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2858113Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890467A (en) * | 2010-07-07 | 2010-11-24 | 杜洋 | Hydraulic upsetter |
| CN102357630A (en) * | 2011-08-23 | 2012-02-22 | 山东理工大学 | Numerical control forming method of hot die forging |
| CN102430680A (en) * | 2011-10-25 | 2012-05-02 | 中南大学 | Super-slow hydraulic system for synchro-driven die-forging hydraulic press |
| CN104353770A (en) * | 2014-10-23 | 2015-02-18 | 湖南明诚机械制造有限公司 | High frequency hammer pile hydraulic system of hydraulic hammer pile machine and hammering cartridge valve of hydraulic hammer pile machine |
-
2005
- 2005-12-06 CN CN 200520128397 patent/CN2858113Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890467A (en) * | 2010-07-07 | 2010-11-24 | 杜洋 | Hydraulic upsetter |
| CN101890467B (en) * | 2010-07-07 | 2015-07-08 | 葫芦岛龙源采油配套设备有限公司 | Hydraulic upsetter |
| CN102357630A (en) * | 2011-08-23 | 2012-02-22 | 山东理工大学 | Numerical control forming method of hot die forging |
| CN102357630B (en) * | 2011-08-23 | 2013-06-12 | 山东理工大学 | Numerical control forming method of hot die forging |
| CN102430680A (en) * | 2011-10-25 | 2012-05-02 | 中南大学 | Super-slow hydraulic system for synchro-driven die-forging hydraulic press |
| CN104353770A (en) * | 2014-10-23 | 2015-02-18 | 湖南明诚机械制造有限公司 | High frequency hammer pile hydraulic system of hydraulic hammer pile machine and hammering cartridge valve of hydraulic hammer pile machine |
| CN104353770B (en) * | 2014-10-23 | 2016-03-23 | 湖南明诚机械制造有限公司 | Hydraulic hammer stake machine high frequency is hammered stake hydraulic system into shape and is beaten hammer inserted valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070117 Termination date: 20131206 |