CN105856606B - A kind of down-regulation type high-precision fast hydraulic pressure forcing press and its mode transfer oil cylinder, method for adjusting mould - Google Patents
A kind of down-regulation type high-precision fast hydraulic pressure forcing press and its mode transfer oil cylinder, method for adjusting mould Download PDFInfo
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- CN105856606B CN105856606B CN201610443104.9A CN201610443104A CN105856606B CN 105856606 B CN105856606 B CN 105856606B CN 201610443104 A CN201610443104 A CN 201610443104A CN 105856606 B CN105856606 B CN 105856606B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
- B30B15/0035—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height using an adjustable connection between the press drive means and the press slide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
- B30B15/0041—Control arrangements therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a kind of down-regulation type high-precision fast hydraulic pressure forcing press and its mode transfer oil cylinder, method for adjusting mould, belong to hydraulic press field, which solve big, complicated, maintenance cost the is high problems of existing hydraulic press mode transfer error, its mode transfer oil cylinder includes master cylinder, the master cylinder includes master cylinder body and the main cylinder piston-rod that is arranged in master cylinder body, further include secondary cylinder and adjusting screw rod, the secondary cylinder includes fast cylinder piston rod, and the fast cylinder cylinder intracavitary in the main cylinder piston-rod upper end is arranged in the fast cylinder piston rod；The fast cylinder piston rod is fixedly connected with master cylinder body；The adjusting screw rod is arranged in the adjustment hole of main cylinder piston-rod lower end.The present invention can improve mode transfer precision, and it is simple in structure, convenient for safeguarding, punching, stretching, pressing process can be integrated.
Description
Technical field
The invention belongs to hydraulic press fields, specifically, being related to a kind of down-regulation type high-precision fast hydraulic pressure forcing press
And its mode transfer oil cylinder, method for adjusting mould.
Background technology
Forcing press includes mechanical press and hydraulic press, and mechanical press is with crank connecting link or elbow-bar mechanism, convex
Take turns mechanism, the forging and stamping machine that screw mechanism is driven, mechanical press generally uses following steps to adjust mold：1) machine is engaged manually
Body clutch；2) the big flywheel of fuselage is repeatedly rotated manually, finds bottom dead center of slider；3) the stroke adjustment spiral shell above adjusting slider
Bar selects rational height of packing compact.The mode transfer mode has the following disadvantages：1) mold, clutch, big flywheel relatively far apart, are grasped
It bothers, the adjustment mold time is longer；2) because adjusting bottom dead centre by rotating big flywheel, the position not determined need to repeatedly be tested
Lower dead point position is demonstrate,proved, efficiency is low；3) mechanical press is because using force-increasing mechanism, and nominal pressure stroke is generally within 10mm, stroke
In cannot stop, so can only be used as punching and shallow drawing process, be not suitable for pressing process.Hydraulic press is to use hydraulic pressure
The forcing press that oil cylinder is driven.Lower dead point position is controlled by travel switch when existing hydraulic press adjustment mold, because of electricity
There are response time error, lower dead point positions to increase with downstream rate and increase for gas and solenoid valve, error generally within 10mm,
So being generally only suitable for pressing process, if you need to be punched, need by reducing slide block down speed control bottom dead center of slider position
Efficiency substantially reduces when setting, but being punched.
Chinese Patent Application No. 201420145508.6, the patent document in publication date on July 23rd, 2014, discloses one kind
The mould adjusting mechanism of mechanical press.To overcome the defect that the mould adjusting mechanism load of existing machinery forcing press is small, mode transfer amount is small, the reality
Technical solution with novel use includes connecting rod, sliding block, the upper table being connected to below sliding block, and the lower part of the connecting rod is cased with
The oil cylinder of one bottom belt oil inlet, the oil cylinder are connect with connecting rod by a lifting assembly, are equipped with positioned at in-oil cylinder connecting rod bottom
Axis pin, axis pin are equipped with a block, and the outer wall of the block and the inner wall of oil cylinder are adapted, and the sliding block is mounted on the bottom of oil cylinder
Portion；The oil cylinder by lifting assembly along length of connecting rod direction upper and lower translation, to realize the upper and lower translation of upper table.Its advantage
It is：Contact area between oil cylinder and sliding block is big, and the power that can be born is big, can be used for big load operation；Pressure oil passes through oil inlet
Mouth enters in oil cylinder, and oil cylinder is pushed to move down, the pressure oil height i.e. displacement of upper table being packed into, and mode transfer amount is big.
But the mould adjusting mechanism structure is more complicated, and later stage working service cost is higher.
Chinese Patent Application No. 200820160443.7, the patent document in publication date on June 17th, 2009, discloses one kind
Forcing press with hydraulic control system belongs to press technologies field, is mainly characterized by setting hydraulic station and hydraulic pressure stand control
The upper cylinder body being arranged in the cope plate of press pressure machine sliding block, workbench lower template, lower cylinder body, when forcing press punching press is upper and lower
When mold is closed, product forms similar shallow drawing between upper and lower cylinder and stretches technique, is during which pressure maintaining period, to realize forcing press
When slide body is run from top dead-centre to bottom dead centre, the suitable molding pressure value of upper and lower cylinder body is adjusted according to workpiece thickness, to prevent
Only hypertonia mold damage, when hypotony punching press, can make die deformation, play the effect similar to hydraulic pressure process for machining
Fruit；The utility model stamped workpieces can be once-forming, and multiple tracks link is avoided to process, and the effectively save time reduces workplace；
It improves work efficiency and stamped workpieces quality, reduces labor intensity, there is very strong practicability and significant economic
Benefit.Technical solution actually belongs to hydraulic press disclosed in the utility model, and compacting and control are synchronized by hydraulic system
Molding pressure value requires complicated system structure, maintenance cost high.
Invention content
1, it to solve the problems, such as
For big, complicated, maintenance cost the is high problem of existing hydraulic press mode transfer error, the present invention provides a kind of
Down-regulation type high-precision fast hydraulic pressure forcing press and its mode transfer oil cylinder, method for adjusting mould, can improve mode transfer precision, and simple in structure, just
In maintenance, punching, stretching, pressing process can be integrated.
2, technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of mode transfer oil cylinder of down-regulation type high-precision fast hydraulic pressure forcing press, including master cylinder, the master cylinder include master cylinder
Cylinder body and the main cylinder piston-rod being arranged in master cylinder body, further include secondary cylinder and adjusting screw rod, and the secondary cylinder includes fast cylinder
The fast cylinder cylinder intracavitary in the main cylinder piston-rod upper end is arranged in piston rod, the fast cylinder piston rod；The fast the cylinder piston
Bar is fixedly connected with master cylinder body；The adjusting screw rod is arranged in the adjustment hole of main cylinder piston-rod lower end.
Preferably, it is provided with oil duct in the middle part of the fast cylinder piston rod, the oil duct is connected to the fast cylinder cylinder chamber.
Preferably, the main cylinder piston-rod upper end is stretched out outside master cylinder body；It is fixedly installed on the fast cylinder piston rod
There is fast cylinder fixed seat；The fast cylinder fixed seating is fixedly connected in main cylinder piston-rod upper end, and with master cylinder body.
Preferably, the main cylinder piston-rod upper end outer wall side is provided with stroke limit block.
Preferably, the main cylinder piston-rod lower end is fixedly installed adjusting nut；The adjusting nut and adjusting spiral shell
Bar is threadedly coupled；It is provided with locking nut on the adjusting screw rod.
Preferably, the adjusting screw rod lower end is provided with sliding block connecting flange.
A kind of down-regulation type high-precision fast hydraulic pressure forcing press, including hydraulic system, the hydraulic system include above-mentioned tune
Mould oil cylinder.
Preferably, solenoid directional control valve one end is connected with oil pump component in the hydraulic system, the other end and mode transfer oil cylinder
Upper master cylinder downlink hydraulic fluid port, master cylinder uplink hydraulic fluid port and secondary cylinder hydraulic fluid port are connected；The solenoid directional control valve is connected with oil pump component
Overflow valve and electro connecting pressure gauge are set on pipeline；Setting sequence on the pipeline that solenoid directional control valve is connect with master cylinder downlink hydraulic fluid port
Valve；Master cylinder downlink hydraulic fluid port is also directly connect with fuel tank pipeline by prefill valve.
A kind of method for adjusting mould of down-regulation type high-precision fast hydraulic pressure forcing press, steps are as follows：
S1. it is installed respectively on sliding block and workbench, lower mold；
S2. oil pump component start button is pressed, control high-voltage oil liquid by solenoid directional control valve enters from secondary cylinder hydraulic fluid port, master cylinder
Piston rod downlink, main cylinder piston-rod upper end stroke limit block are encountered at the top of master cylinder body, and oil pump component stop button is pressed；
S3. manual rotation adjusting screw rod, adjustment sliding block is supreme, lower mold is closed；
S4. locking nut, the position of secured adjusted screw rod are rotated, mode transfer is completed.
Preferably, fluid enters master cylinder downlink hydraulic fluid port through prefill valve while main cylinder piston-rod downlink in step S2.
3, advantageous effect
Compared with the prior art, beneficial effects of the present invention are：
(1) the secondary cylinder of mode transfer oil cylinder of the invention setting can carry out mode transfer action, fast cylinder piston rod and master with quick acting
Cylinder piston rod is separately positioned, reduces the difficulty of processing of master cylinder, is convenient for the maintenance of oil cylinder；Adjusting screw rod is arranged can be quick and convenient
Bottom dead center of slider is found, and is set to sliding block top position, it is easy to adjust, it is easy to operation；
(2) oil duct is arranged in the middle part of fast cylinder piston rod in mode transfer oil cylinder of the present invention, facilitates the disengaging of hydraulic oil, not with master cylinder cylinder
Soma relates to；
(3) fast cylinder fixed seat, which is arranged, in mode transfer oil cylinder of the present invention can improve the stability of fast cylinder piston rod, while by fast
Fast cylinder piston rod is fixedly connected by cylinder fixed seat indirectly with master cylinder body, is conducive to later maintenance, maintenance, the replacement of parts,
Reduce maintenance cost；
(4) mode transfer oil cylinder setting stroke limit block of the present invention is mechanical position limitation, and repetitive positioning accuracy is high；It is limited by the machinery
Position block controls repetitive positioning accuracy, is not influenced by the speed of sliding block, and sliding block fast downlink hydraulic press is suitable for；
(5) on the one hand adjusting screw rod can be indirectly secured to main cylinder piston-rod by mode transfer oil cylinder setting adjusting nut of the present invention
On the other hand lower end, easy to process, parts disassembling, assembling and replacing and repair improve the flexible adjustment of adjusting screw rod, facilitate work
Personnel operate, while can further increase the degree of regulation of adjusting screw rod；
(6) the sliding block connecting flange of mode transfer oil cylinder adjusting screw rod lower end of the present invention is for being connected and fixed sliding block；
(7) forcing press of the present invention is fast with mode transfer speed, precision is high, and sliding block limit accuracy is high, whole to improve
Machining accuracy；
(8) hydraulic system carries out pressure control, strength and deflection phase using electro connecting pressure gauge in forcing press of the present invention
It coincide, further improves the repetitive positioning accuracy of machine；
(9) method for adjusting mould of the present invention then can quickly mode transfer, accurate mode transfer, allow forcing press of the present invention collect punching, draw
It the operations such as stretches, suppress to be integrated, and precision is high, speed is fast；
(10) master cylinder filling liquid can be further processed by prefill valve the action of press ram in method for adjusting mould of the present invention
Speed improves production efficiency.
Description of the drawings
Fig. 1 is the overall structure diagram of hydraulic press of the present invention；
Fig. 2 is the front view of hydraulic press of the present invention；
Fig. 3 is in Fig. 2 along line B-B sectional view；
Fig. 4 is the stereoscopic schematic diagram of mode transfer oil cylinder of the present invention；
Fig. 5 is the front view of mode transfer oil cylinder of the present invention；
Fig. 6 is in Fig. 5 along line A-A sectional view；
Fig. 7 is hydraulic scheme in hydraulic press of the present invention.
In figure：1, fuselage；2, workbench；3, sliding block；4, mode transfer oil cylinder；5, hydraulic valve bank；6, fuel tank；7, oil pump component；
40, sliding block connecting flange；41, adjusting screw rod；42, limited block is adjusted；43, main cylinder piston-rod；44, master cylinder body；
45, fast cylinder piston rod；46, fast cylinder fixed seat；47, stroke limit block；48, adjusting nut；49, locking nut；
102, oil pump；103, motor；104, overflow valve；105, electro connecting pressure gauge；106, solenoid directional control valve；107, sequence
Valve；109, prefill valve.
Specific implementation mode
The present invention is further described below with reference to specific embodiment.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, a kind of down-regulation type high-precision fast hydraulic pressure forcing press, including fuselage 1, workbench 2,
Sliding block 3 and hydraulic system, hydraulic system include hydraulic valve bank 5, fuel tank 6, oil pump component 7 and mode transfer oil cylinder 4, and workbench 2 is adjusted
Mould oil cylinder 4, hydraulic valve bank 5, fuel tank 6 and oil pump component 7 are each attached on fuselage 1, and sliding block 3 is fixed on 4 lower end of mode transfer oil cylinder；
As shown in Figure 4, Figure 5 and Figure 6, it includes master cylinder cylinder that mode transfer oil cylinder 4, which includes master cylinder, secondary cylinder and adjusting screw rod 41, master cylinder,
Body 44 and the main cylinder piston-rod 43 being arranged in master cylinder body 44,43 upper end of main cylinder piston-rod are stretched out outside master cylinder body 44；It is secondary
Cylinder includes fast cylinder piston rod 45, and the fast cylinder cylinder intracavitary in 43 upper end of main cylinder piston-rod, fast cylinder piston rod is arranged in fast cylinder piston rod 45
45 are fixedly connected with master cylinder body 44, are fixedly connected indirectly particular by fast cylinder fixed seat 46, more specifically, fast the cylinder piston
Be welded and fixed on bar 45 and be provided with fast cylinder fixed seat 46, fast cylinder fixed seat 46 is sleeved on 43 upper end of main cylinder piston-rod, and with master cylinder cylinder
Body 44 is fixedly connected by screw；45 middle part of fast cylinder piston rod is provided with oil duct, the oil duct upper end and 45 top of fast cylinder piston rod
Secondary cylinder hydraulic fluid port connection, lower end is connected to fast cylinder cylinder chamber；43 upper end outer wall side of main cylinder piston-rod is provided with stroke limit block 47, should
Stroke limit block 47 is mechanical position limitation, and repetitive positioning accuracy is high, controls repetitive positioning accuracy by the mechanical position limitation block, is not slided
The influence of block speed is conducive to improve hydraulic machine slide block down speed；43 lower end of main cylinder piston-rod is provided with adjustment hole, adjustment hole
Lower end is fixedly installed adjusting nut 48；Adjusting nut 48 is threadedly coupled with adjusting screw rod 41, and adjusting screw rod 41, which passes through, adjusts spiral shell
Mother 48 stretches into adjustment hole, and one end that adjusting screw rod 41 stretches into adjustment hole, which is fixedly installed, adjusts limited block 42, adjusting limit
Position block 42 can effectively prevent adjusting screw rod 41 to push up bad main cylinder piston-rod 43, it is ensured that degree of regulation, realization are accurately positioned；Adjust spiral shell
It is provided with locking nut 49 on bar 41, is used for the adjusting position of lock adjustment screw rod 41,41 lower end of adjusting screw rod is provided with sliding block
Connecting flange 40, sliding block 3, which is bolted, to be arranged on sliding block connecting flange 40；
As shown in fig. 7, hydraulic valve bank 5 includes solenoid directional control valve 106, sequence valve 107, prefill valve 109；Oil pump component 7
Including oil pump 102, motor 103, oil pump 102 is connected with fuel tank 6；Wherein 106 one end of solenoid directional control valve is connected with oil pump component 7,
The other end is connected with master cylinder downlink hydraulic fluid port, master cylinder uplink hydraulic fluid port and secondary cylinder hydraulic fluid port on mode transfer oil cylinder 4, and master cylinder downlink hydraulic fluid port is main
The hydraulic fluid port that oil pocket being formed between cylinder piston rod 43, master cylinder body 44, on the inside of 44 upper end of master cylinder body is in communication with the outside, from
The hydraulic oil liquid that the hydraulic fluid port enters controls 43 downlink of main cylinder piston-rod, and master cylinder uplink hydraulic fluid port is main cylinder piston-rod 43, master cylinder body
The hydraulic fluid port that is in communication with the outside of oil pocket being formed between 44, in 44 lower end inside of master cylinder body, the hydraulic oil entered from the hydraulic fluid port
43 uplink of hydraulic control main cylinder piston-rod；Overflow is arranged on the pipeline that oil pump 102 is connected in oil pump component 7 in solenoid directional control valve 106
Valve 104 and electro connecting pressure gauge 105；Sequence valve 107 is set on the pipeline that solenoid directional control valve 106 is connect with master cylinder downlink hydraulic fluid port；
Master cylinder downlink hydraulic fluid port is also directly connect with 6 pipeline of fuel tank by prefill valve 109.
A kind of operation principle of down-regulation type high-precision fast hydraulic pressure forcing press of the present invention be adjustment mold first, specifically
It is as follows,
A kind of method for adjusting mould of down-regulation type high-precision fast hydraulic pressure forcing press, steps are as follows：
S1. it is installed respectively on sliding block 3 and workbench 2, lower mold；
S2. 7 start button of oil pump component is pressed, control high-voltage oil liquid by solenoid directional control valve 106 enters from secondary cylinder hydraulic fluid port,
43 downlink of main cylinder piston-rod, while fluid enters master cylinder downlink hydraulic fluid port, 43 upper end stroke limit of main cylinder piston-rod through prefill valve 109
Block 47 encounters 44 top of master cylinder body, presses 7 stop button of oil pump component；
S3. locking nut 49 is rotated, so that it is detached with 48 lower face of adjusting nut, then manual rotation adjusting screw rod 41, is adjusted
Whole sliding block 3 is supreme, lower mold is closed；
S4. rotation locking nut 49 makes it be bonded the position for the adjusting screw rod 41 that is locked with 48 lower face of adjusting nut,
Mode transfer is completed；
Then main cylinder piston-rod 43 is resetted, workpiece to be pressed is installed between upper/lower die, after fixed, then presses oil pump group
7 start button of part controls high-voltage oil liquid by solenoid directional control valve 106 and enters from secondary cylinder hydraulic fluid port, 43 downlink of main cylinder piston-rod, simultaneously
Fluid enters master cylinder downlink hydraulic fluid port through prefill valve 109, and when upper mold encounters workpiece to be pressed, resistance increases, and sequence valve 107 is beaten
It opens, pressure oil liquid is directly entered master cylinder downlink hydraulic fluid port through pipeline, so that main cylinder piston-rod 43 is continued traveling downwardly and suppresses workpiece, when
It is detected in electro connecting pressure gauge 105 and presses 7 stop button of oil pump component when pressure value reaches preset value, 102 fuel cut-off of oil pump,
And starting oil pump component 7 after pressurize three minutes makes main cylinder piston-rod 43 reset, and removes workpiece, completes the compacting of workpiece.
Claims (6)
1. a kind of mode transfer oil cylinder of down-regulation type high-precision fast hydraulic pressure forcing press, including master cylinder, the master cylinder include master cylinder cylinder
Body (44) and the main cylinder piston-rod (43) being arranged in master cylinder body (44), it is characterised in that：Further include secondary cylinder and adjusting spiral shell
Bar (41), the secondary cylinder include fast cylinder piston rod (45), and the fast cylinder piston rod (45) is arranged in the master cylinder piston
The fast cylinder cylinder intracavitary of bar (43) upper end；The fast cylinder piston rod (45) is fixedly connected with master cylinder body (44)；The adjusting
Screw rod (41) is arranged in the adjustment hole of main cylinder piston-rod (43) lower end；It is provided with oil in the middle part of the fast cylinder piston rod (45)
Road, the oil duct are connected to the fast cylinder cylinder chamber；Described main cylinder piston-rod (43) lower end is fixedly installed adjusting nut
(48)；The adjusting nut (48) is threadedly coupled with adjusting screw rod (41)；It is provided with locking on the adjusting screw rod (41)
Nut (49)；Master cylinder body (44) is stretched out outside in described main cylinder piston-rod (43) upper end；It is solid on the fast cylinder piston rod (45)
Surely it is provided with fast cylinder fixed seat (46)；The fast cylinder fixed seat (46) is sleeved on main cylinder piston-rod (43) upper end, and with master cylinder cylinder
Body (44) is fixedly connected；Main cylinder piston-rod (43) upper end outer wall side is provided with stroke limit block (47)；It further include master cylinder
Downlink hydraulic fluid port and master cylinder uplink hydraulic fluid port；The master cylinder downlink hydraulic fluid port is shape between main cylinder piston-rod (43), master cylinder body (44)
At, hydraulic fluid port that the oil pocket on the inside of master cylinder body (44) upper end is in communication with the outside；The master cylinder uplink hydraulic fluid port is that master cylinder is lived
The hydraulic fluid port that is in communication with the outside of oil pocket being formed between stopper rod (43), master cylinder body (44), in master cylinder body (44) lower end inside.
2. a kind of mode transfer oil cylinder of down-regulation type high-precision fast hydraulic pressure forcing press according to claim 1, it is characterised in that：
Described adjusting screw rod (41) lower end is provided with sliding block connecting flange (40).
3. a kind of down-regulation type high-precision fast hydraulic pressure forcing press, including hydraulic system, it is characterised in that：The hydraulic system packet
Include mode transfer oil cylinder described in claim 1.
4. a kind of down-regulation type high-precision fast hydraulic pressure forcing press according to claim 3, it is characterised in that：The hydraulic pressure
Solenoid directional control valve (106) one end is connected with oil pump component (7) in system, master cylinder downlink hydraulic fluid port on the other end and mode transfer oil cylinder (4),
Master cylinder uplink hydraulic fluid port and secondary cylinder hydraulic fluid port are connected；It is set on the pipeline that the solenoid directional control valve (106) is connected with oil pump component (7)
Set overflow valve (104) and electro connecting pressure gauge (105)；It is set on the pipeline that solenoid directional control valve (106) is connect with master cylinder downlink hydraulic fluid port
Set sequence valve (107)；Master cylinder downlink hydraulic fluid port is also directly connect with fuel tank (6) pipeline by prefill valve (109).
5. the method for adjusting mould of down-regulation type high-precision fast hydraulic pressure forcing press described in a kind of claim 3, steps are as follows：
S1. it is installed respectively on sliding block (3) and workbench (2), lower mold；
S2. oil pump component (7) start button is pressed, control high-voltage oil liquid by solenoid directional control valve (106) enters from secondary cylinder hydraulic fluid port,
Main cylinder piston-rod (43) downlink, main cylinder piston-rod (43) upper end stroke limit block (47) are encountered at the top of master cylinder body (44), are pressed
Oil pump component (7) stop button；
S3. manual rotation adjusting screw rod (41), adjustment sliding block (3) is supreme, lower mold is closed；
S4. rotation locking nut (49), the position of secured adjusted screw rod (41), mode transfer are completed.
6. a kind of method for adjusting mould of down-regulation type high-precision fast hydraulic pressure forcing press according to claim 5, it is characterised in that：
Fluid enters master cylinder downlink hydraulic fluid port through prefill valve (109) while main cylinder piston-rod (43) downlink in step S2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610443104.9A CN105856606B (en) | 2016-06-20 | 2016-06-20 | A kind of down-regulation type high-precision fast hydraulic pressure forcing press and its mode transfer oil cylinder, method for adjusting mould |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610443104.9A CN105856606B (en) | 2016-06-20 | 2016-06-20 | A kind of down-regulation type high-precision fast hydraulic pressure forcing press and its mode transfer oil cylinder, method for adjusting mould |
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| CN105856606A CN105856606A (en) | 2016-08-17 |
| CN105856606B true CN105856606B (en) | 2018-09-11 |
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| CN108533564B (en) * | 2018-06-01 | 2023-07-25 | 江西海源复合材料科技股份有限公司 | Novel main oil cylinder structure of winding hydraulic machine |
| CN109203555B (en) * | 2018-10-25 | 2020-07-03 | 扬力集团股份有限公司 | Double-cylinder hydraulic ejection control system and method thereof |
| CN109514903B (en) * | 2019-01-18 | 2024-03-26 | 扬力集团股份有限公司 | High-efficiency precise servo pump control hydraulic punch press and punching processing method thereof |
| CN116811328B (en) * | 2023-07-05 | 2024-01-16 | 广东泰基山科技有限公司 | Hydraulic pressure adjusting press |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3635390A1 (en) * | 1986-10-17 | 1988-04-21 | Rauma Repola Oy | Hydraulic cylinder |
| EP0273604B1 (en) * | 1986-12-04 | 1991-04-17 | Kabushiki Kaisha Kosmek | Die-height adjusting device of mechanical press |
| CN2657917Y (en) * | 2003-09-28 | 2004-11-24 | 江都市锻压机床总厂 | Quick press |
| CN201067977Y (en) * | 2007-07-13 | 2008-06-04 | 扬州锻压机床集团有限公司 | Slide block hydraulic lifting mechanism |
| CN201279930Y (en) * | 2008-10-06 | 2009-07-29 | 倪小银 | High-efficiency energy-saving hydraulic press |
| CN204977549U (en) * | 2015-09-06 | 2016-01-20 | 浙江德孚机械设备有限公司 | Die setting height adjuster for press |
| CN205685777U (en) * | 2016-06-20 | 2016-11-16 | 扬州市工兵机械有限公司 | A kind of down-regulation type high accuracy fast hydraulic pressure forcing press and mode transfer oil cylinder thereof |
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