CN110303076A - Hand-hydraulic apparatus for bending - Google Patents
Hand-hydraulic apparatus for bending Download PDFInfo
- Publication number
- CN110303076A CN110303076A CN201910552479.2A CN201910552479A CN110303076A CN 110303076 A CN110303076 A CN 110303076A CN 201910552479 A CN201910552479 A CN 201910552479A CN 110303076 A CN110303076 A CN 110303076A
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- valve
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- hand
- mouth
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- 238000005452 bending Methods 0.000 title claims abstract description 34
- 230000006835 compression Effects 0.000 claims abstract description 26
- 238000007906 compression Methods 0.000 claims abstract description 26
- 239000002828 fuel tank Substances 0.000 claims abstract description 20
- 230000007423 decrease Effects 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 97
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 claims 1
- 239000010720 hydraulic oil Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 241001484259 Lacuna Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
-
- 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
- B30B15/16—Control arrangements for fluid-driven presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanically-Actuated Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of hand-hydraulic apparatus for bending, which solve existing bending machine tool is complicated for operation, operating cost is high, the technical issues of overweight not Easy Move of complete machine uses, it includes oil cylinder, guide pad, upper mold, lower mold, workbench, handle, handle bracket, shaft, shift fork, plunger, fuel tank, guiding axis, integrated valve plate, decline oil pipe, rise oil pipe and lifting switching handle, lower mold is connect with workbench, guide pad is connect by bracket with workbench, oil cylinder is connect with guide pad, guiding axis is fixedly connected with oil cylinder, guiding axis is equipped with central through hole, the bottom of guiding axis is equipped with duct T1；Fuel tank and guiding axis connection, duct T1 are connected to the inner cavity of fuel tank；Plunger passes through the central through hole of guiding axis, and the lower end of plunger is protruded into the compression chamber P1 of oil cylinder rear end；The present invention is widely used in the Bending Processing of plate.
Description
Technical field
The present invention relates to sheet metal bending field shaping techniques, in particular to a kind of hand-hydraulic apparatus for bending.
Background technique
Currently, what the bending of plate was usually realized on dedicated bending machine tool.Such bending machine tool needs individually mating hydraulic
Pumping plant provides bending power, by electric-control board carries out bending operation.In addition, complicated for operation, operating cost is high, and equipment needs mating
Power supply uses, and complete machine is overweight to be not easy frequently to move use.
Summary of the invention
The present invention is exactly that existing bending machine tool is complicated for operation, operating cost is high, the overweight not Easy Move of complete machine makes in order to solve
With the technical issues of, provide it is a kind of it is easy to operate, operating cost is low, is easy to move the hand-hydraulic apparatus for bending used.
The present invention provides a kind of hand-hydraulic apparatus for bending, including oil cylinder, guide pad, upper mold, lower mold, bracket, work
Make platform, handle, handle bracket, shaft, shift fork, plunger, fuel tank, guiding axis, integrated valve plate, decline oil pipe, rise oil pipe and liter
Drop switching handle；
Lower mold is connect with workbench, and lower mold is equipped with the groove for bending；Bracket passes through with workbench to be fixedly connected,
Guide pad is fixedly connected with bracket, and the cylinder body of oil cylinder is fixedly connected with guide pad, and oil cylinder is equipped with piston and telescopic rod, after oil cylinder
End is equipped with compression chamber P1 and compression duct P2, and compression duct P2 is connected to compression chamber P1；The guide pad is equipped with for by stretching
The centre bore of contracting bar, the telescopic rod are slidably connected with guide pad；The connection of the telescopic rod of upper mold and oil cylinder；
Guiding axis is fixedly connected with oil cylinder, and guiding axis is equipped with central through hole, and the bottom of guiding axis is equipped with duct T1；Fuel tank with
It is oriented to axis connection, duct T1 is connected to the inner cavity of fuel tank；The plunger passes through the central through hole of guiding axis, and the lower end of plunger is protruded into
In the compression chamber P1 of oil cylinder rear end；Handle bracket is fixedly connected with oil cylinder, and shaft and handle bracket are rotatablely connected, handle and shaft
It is fixedly connected, shift fork is fixedly connected with shaft；The upper end of plunger is connect with shift fork；The side of the integrated valve plate and guiding axis is solid
Fixed connection；
Hydraulic control guide two-position four way change valve, the second hydraulic control one-way valve, hand-operated direction valve, oil suction list are equipped in integrated valve plate
To valve, the first oiling check valve, the second oiling check valve and the first hydraulic control one-way valve, the hydraulic control guide two-position four way change valve
Equipped with a mouthfuls, b mouthfuls, T mouthfuls, pilot port K1, pilot port K2, hand-operated direction valve is equipped with P mouthfuls, T mouthfuls, input port；First oiling check valve
Entrance and the P mouth of hand-operated direction valve connect, the T mouth connection of the entrance of the second oiling check valve and hand-operated direction valve；First note
The outlet of oily check valve is connect by duct with the A1 of integrated valve plate mouth, and the outlet of the second oiling check valve by duct and integrates
The B1 mouth of valve plate connects；The outlet of second hydraulic control one-way valve is connect by duct with the A1 of integrated valve plate mouth, the second fluid-control one-way
The entrance of valve is connect with a mouth of hydraulic control guide's two-position four way change valve, the pilot port and hand-operated direction valve of the second hydraulic control one-way valve
T mouth connection；The pilot port K2 of hydraulic control guide's two-position four way change valve and the T mouth of hand-operated direction valve connect；First fluid-control one-way
The outlet of valve is connect with the B1 of integrated valve plate mouth, the entrance of the first hydraulic control one-way valve and the b of hydraulic control guide two-position four way change valve
Mouth connection, the pilot port of the first hydraulic control one-way valve and the P mouth of hand-operated direction valve connect；The elder generation of hydraulic control guide's two-position four way change valve
The P mouth for leading mouthful K1 and hand-operated direction valve connects；The T mouth of hydraulic control guide's two-position four way change valve and the entrance of oil sucting one-way valve connect
It connects；The input port of hand-operated direction valve and the outlet of oil sucting one-way valve connect；Lifting switching handle is connect with hand-operated direction valve；
The entrance of the oil sucting one-way valve is connect with duct T1, and the outlet of oil sucting one-way valve is connect with compression duct P2；Collection
It is connected by decline oil pipe with the back cavity of oil cylinder at the A1 mouth of valve plate, B1 mouthfuls are connected by rising oil pipe with the ante-chamber of oil cylinder
It is logical.
Preferably, lower mold is linked together with workbench by double inclined plane dovetail configuration.
Preferably, the side wall of the centre bore of guide pad is equipped with sliding slot, and telescopic rod connects flat key, and flat key is embedded in guide pad center
In the sliding slot of the side wall in hole.
Preferably, oiling plug screw and oil ga(u)ge are connected on fuel tank.
The invention has the advantages that it is simple to operate, it is not necessarily to mating hydraulic power unit and power supply, at low cost, weight
Amount can gently move use at any time.The present invention in use, apply external force to long handle, hydraulic oil be pressed into the working chamber of hydraulic cylinder and
Supercharging effect is generated, the decline bending of upper mold is realized or is lifted up.When if you need to higher pressure, it is only necessary to back and forth pull long hand
Handle completes oil suction and pressure process.Hydraulic control integrate valve plate be loaded on machine side, hydraulic control oil return circuit channel use in
Hydraulic guide control is set, while compressed hydraulic oil flows into working chamber, the hydraulic control one-way valve for opening corresponding drainback passage makes
It can reversely pass through, and pilot operated directional control valve is pushed to communicate corresponding oil return circuit；When standby mode, upper mold is locked in currently
State.
The operation valve that integrated valve plate is constituted, it is compact-sized, it is small in size, it moves conveniently, it is easy to use.
Further aspect of the present invention is clearly stated that in the description of following specific embodiments.
Detailed description of the invention
Fig. 1 is the hydraulic schematic diagram of hand-hydraulic apparatus for bending；
Fig. 2 is the perspective view of hand-hydraulic apparatus for bending；
Fig. 3 is the main view of hand-hydraulic apparatus for bending；
Fig. 4 is the cross-sectional view of hand-hydraulic apparatus for bending；
Fig. 5 is the cross-sectional view that valve plate is integrated in Fig. 4.
Symbol description in figure:
1. oil cylinder, 2. pistons, 3. guide pads, 4. flat keys, 5. holding screws, 6. upper molds, 7. plates, 8. lower molds, 9.
Bracket, 10. workbench, 11. handles, 12. handle brackets, 13. shafts, 14. shift forks, 15. plungers, 16 oiling plug screws, 17. oil
Case, 18. guiding axis, 19. hydraulic control guide's two-position four way change valves, 20. hand-operated direction valves, 21. second hydraulic control one-way valves, 22. collection
At valve plate, 23. decline oil pipes, 24. rise oil pipes, 25. lifting switching handles, 26. oil sucting one-way valves, and 27. first oilings are unidirectional
Valve, 28. second oiling check valves, 29. hydraulic control guide's two-position four way change valves, 30. oil ga(u)ges.
Specific embodiment
Referring to the drawings, with specific embodiment, invention is further described in detail.
As shown in Figs. 1-5, hand-hydraulic apparatus for bending include oil cylinder 1, guide pad 3, flat key 4, upper mold 6, lower mold 8,
Bracket 9, workbench 10, handle 11, handle bracket 12, shaft 13, shift fork 14, plunger 15, fuel tank 17, guiding axis 18, hydraulic control are first
It leads two-position four way change valve 19, hand-operated direction valve 20, the second hydraulic control one-way valve 21, integrated valve plate 22, decline oil pipe 23, rise oil
Pipe 24, lifting switching handle 25, oil sucting one-way valve 26, the first oiling check valve 27, the second oiling check valve 28, the first hydraulic control list
To valve 29.
Lower mold 8 is inserted into the double inclined plane dovetail gap on workbench 10 to be cooperated, and lower mold 8 can very easily move position
It sets.Lower mold 8 is equipped with the groove for bending, and plate 7 is placed in above lower mold 8.Bracket 9 and workbench 10 are solid by screw
Fixed connection, guide pad 3 are fixedly connected with bracket 9 by screw, and the cylinder body of oil cylinder 1 is fixedly connected with guide pad 3 by screw.Oil
Cylinder 1 includes piston 2 and telescopic rod, and piston 2 is installed on inside oil cylinder 1, and telescopic rod is connect with piston 2；The rear end of oil cylinder 1 is equipped with pressure
Contracting chamber P1 and compression duct P2, compression duct P2 are connected to compression chamber P1.Guide pad 3 is equipped with for the center by telescopic rod
The side wall in hole, the centre bore is equipped with sliding slot, and flat key 4 is connect with telescopic rod, and flat key 4 is embedded in the cunning of the side wall of 3 centre bore of guide pad
In slot, the telescopic rod of oil cylinder 1 can be slided up and down relative to guide pad 3.Upper mold 6 is connected with the telescopic rod of oil cylinder 1, on
The effect of holding screw 5 of the connection of 6 side of mold is used to prevent upper mold 6 from falling off on the piston rod.
Guiding axis 18 is fixedly connected with oil cylinder 1 by screw, and guiding axis 18 is equipped with central through hole, and the bottom of guiding axis 18 is set
There is duct T1；Fuel tank 17 is welded on guiding axis 18, and duct T1 is connected to the inner cavity of fuel tank 17.Oiling plug screw 16 and oil ga(u)ge 30 are pacified
Loaded on fuel tank 17.Plunger 15 passes through the central through hole of guiding axis 18, and axis, interporal lacuna fit through sealing ring sealing, plunger 15
It can slide up and down.The lower end of plunger 15 is protruded into the compression chamber P1 of 1 rear end of oil cylinder.Handle bracket 12 is fixed by screws in oil
The side of cylinder 1, shaft 13 are rotationally connect with handle bracket 12, and shaft 13 can rotate, and handle 11 is welded in shaft 13, are dialled
Fork 14 is threadedly secured in shaft 13.Shift fork 14 is connect with the upper end of plunger 15.Integrated valve plate 22 is fixed by screws in
The side of guiding axis 18, lifting switching handle 25 are fixed on hand-operated direction valve 20 by flat key, holding screw.According in Fig. 3
Shown in arrow, after pulling lifting switching handle 25 to the right, integrated valve plate 22 is in the working condition for declining piston 2；It pulls to the left
After dynamic lifting switching handle 25, integrated valve plate 22 is in the working condition for increase piston 2.
Integrated valve plate 22 is provided with hydraulic control guide two-position four way change valve 19, the second hydraulic control one-way valve 21, hand-operated direction valve
20, oil sucting one-way valve 26, the first oiling check valve 27, the second oiling check valve 28, the first hydraulic control one-way valve 29；Hydraulic control guide two
Position and four-way reversing valve 19 is equipped with a mouthfuls, b mouthfuls, T mouthfuls, pilot port K1, pilot port K2, b mouthfuls and T mouthfuls of companies when having pressure at pilot port K1
It is logical, it is connected to T mouthfuls for a mouthfuls when having pressure at pilot port K2；Hand-operated direction valve 20 is equipped with P mouthfuls, T mouthfuls, input port.First oiling is unidirectional
The entrance of valve 27 is connect with the P of hand-operated direction valve 20 mouth, the entrance of the second oiling check valve 28 and the T mouth company of hand-operated direction valve 20
It connects.The outlet of first oiling check valve 27 is connect by duct with the A1 mouth of integrated valve plate 22, and the second oiling check valve 28 goes out
Mouth is connect by duct with the B1 mouth of integrated valve plate 22.The outlet of second hydraulic control one-way valve 21 passes through duct and integrated valve plate 22
A1 mouthfuls of connections.The entrance of second hydraulic control one-way valve 21 is connect with a mouth of hydraulic control guide two-position four way change valve 19, the second hydraulic control list
It is connect to the pilot port of valve 21 with the T of hand-operated direction valve 20 mouth.The pilot port K2 and hand of hydraulic control guide two-position four way change valve 19
The T mouth connection of dynamic reversal valve 20.The outlet of first hydraulic control one-way valve 29 is connect with the B1 mouth of integrated valve plate 22.First fluid-control one-way
The entrance of valve 29 is connect with the b mouth of hydraulic control guide two-position four way change valve 19, the pilot port of the first hydraulic control one-way valve 29 and manually
The P mouth of reversal valve 20 connects.Pilot port K1 and the P of hand-operated direction valve 20 mouth of hydraulic control guide two-position four way change valve 19 are connect.
T mouthfuls of oil return of hydraulic control guide two-position four way change valve 19 are connect with the entrance of oil sucting one-way valve 26.The input of hand-operated direction valve 20
Mouth is connect with the outlet of oil sucting one-way valve 26.The outlet of oil sucting one-way valve 26 is connected by the oil inlet of duct and integrated valve plate 22
It connects.The mode of national standard axis, hole sealing is all made of at sealing needed for junction between each component.
The entrance of oil sucting one-way valve 26 is connect with duct T1, the outlet of oil sucting one-way valve 26 connect with compression duct P2 (
That is the oil inlet of integrated valve plate 22 is connect with compression duct P2).The A1 mouth of integrated valve plate 22 passes through decline oil pipe 23 and oil
The back cavity A2 of cylinder 1 is connected, and B1 mouthfuls are connected (such as Fig. 1,4) with the ante-chamber B2 of oil cylinder 1 by rising oil pipe 24.
The operating process using hand-hydraulic apparatus for bending is described below:
The process of piston decline bending are as follows: the plate 7 for needing bending is placed on lower mold 8, first according to arrow in Fig. 3
Direction pulls to the right lifting switching handle 25 to down position；Then manual depression handle 11 rotates shaft 13, shaft
13 drive shift fork 14 to move, and drive plunger 15 to be moved upward to generate negative pressure by shift fork 14, make the hydraulic oil of 17 the inside of fuel tank
The duct T1, oil sucting one-way valve 26, compression duct P2 for passing sequentially through 18 bottom of guiding axis inject in the compression chamber P1 of oil cylinder 1.To
On pull handle 11 and move down plunger 15, cause the hydraulic oil in the compression chamber P1 of oil cylinder 1 to be compressed, it is compressed hydraulic
Oil successively by compression duct P2, the input port of hand-operated direction valve 20, the P mouth of hand-operated direction valve 20, the first oiling check valve 27,
A1 mouth, the decline oil pipe 23 of integrated valve plate 22 enter the back cavity A2 of oil cylinder 1；The pilot port of first hydraulic control one-way valve 29 is by oil
Pressure, by oil pressure, the oil liquid in the ante-chamber B2 of oil cylinder 1 successively passes through by the pilot port K1 of hydraulic control guide two-position four way change valve 19
Rise B1 mouth, the first hydraulic control one-way valve 29, the b mouth of hydraulic control guide two-position four way change valve 19, hydraulic control of oil pipe 24, integrated valve plate 22
The T mouth of guide's two-position four way change valve 19 flows in fuel tank 17.The pressure effect of compressed hydraulic oil in the back cavity A2 of oil cylinder 1
In the A1 chamber large area of piston 2, make it that upper mold 6 be driven to decline, the power of stretching acts on plate 7 and generates bending and molding.
When if you need to higher pressure, it is only necessary to back and forth pull handle 11 to realize.
Piston lifting process after bending and molding are as follows: first pull lifting switching handle 25 to the left to lifting position；Under manually
Pressure handle 11 drives plunger 15 to be moved upward to generate negative pressure by shift fork 14, and the hydraulic oil of 17 the inside of fuel tank is made to pass through oil suction list
It is injected to valve 26 in the compression chamber P1 of oil cylinder 1.Handle 11 is pulled upwards and drives plunger 15 to move down by shift fork 14, causes oil
Hydraulic oil in the compression chamber P1 of cylinder 1 is compressed.Compressed hydraulic oil is successively by compression duct P2, hand-operated direction valve 20
Input port, the second oiling check valve 28 enter the ante-chamber B2 of oil cylinder 1, and the pilot port of the second hydraulic control one-way valve 21 is by oil pressure, liquid
The pilot port K2 of guide's two-position four way change valve 19 is controlled by oil pressure, the oil liquid in the back cavity A2 of oil cylinder 1 is successively by decline oil
A1 mouth, the second hydraulic control one-way valve 21, a mouth of hydraulic control guide two-position four way change valve 19, hydraulic control guide of pipe 23, integrated valve plate 22
The T mouth of two-position four way change valve 19 flows in fuel tank 17.The pressure of compressed hydraulic oil acts on the B2 of piston 2 in ante-chamber B2
On the annulus area of chamber, makes it that upper mold 6 be driven to be lifted up, then remove the plate 7 of bending and molding.If you need to higher pressure
When, it is only necessary to back and forth handle 11 is pulled to realize.
When standby mode (handle 11 is motionless), the hydraulic oil of two chamber of A2, B2 of piston 2 is respectively by the second hydraulic control one-way valve 21
It is lockked with the first hydraulic control one-way valve 29, piston 2 keeps current lock state.
When the visual liquid level of oil ga(u)ge 30 is to low level, oiling plug screw 16 is first backed out, injects hydraulic oil toward fuel tank 17, liquid level is more than
After 30 high position of oil ga(u)ge, oiling plug screw 16 is loaded onto.
The above is not intended to restrict the invention, only to the preferred embodiment of the present invention for the skill of this field
For art personnel, the invention may be variously modified and varied.
Claims (4)
1. a kind of hand-hydraulic apparatus for bending, which is characterized in that including oil cylinder, guide pad, upper mold, lower mold, bracket, work
Platform, handle bracket, shaft, shift fork, plunger, fuel tank, guiding axis, integrated valve plate, decline oil pipe, rises oil pipe and lifting at handle
Switch handle；
The lower mold is connect with workbench, and lower mold is equipped with the groove for bending；Bracket passes through with workbench to be fixedly connected,
Guide pad is fixedly connected with bracket, and the cylinder body of oil cylinder is fixedly connected with guide pad, and oil cylinder is equipped with piston and telescopic rod, after oil cylinder
End is equipped with compression chamber P1 and compression duct P2, and compression duct P2 is connected to compression chamber P1；The guide pad is equipped with for by stretching
The centre bore of contracting bar, the telescopic rod are slidably connected with guide pad；The connection of the telescopic rod of upper mold and oil cylinder；
The guiding axis is fixedly connected with oil cylinder, and guiding axis is equipped with central through hole, and the bottom of guiding axis is equipped with duct T1；Fuel tank with
It is oriented to axis connection, duct T1 is connected to the inner cavity of fuel tank；The plunger passes through the central through hole of guiding axis, and the lower end of plunger is protruded into
In the compression chamber P1 of oil cylinder rear end；Handle bracket is fixedly connected with oil cylinder, and shaft and handle bracket are rotatablely connected, handle and shaft
It is fixedly connected, shift fork is fixedly connected with shaft；The upper end of plunger is connect with shift fork；The side of the integrated valve plate and guiding axis is solid
Fixed connection；
It is unidirectional equipped with hydraulic control guide two-position four way change valve, the second hydraulic control one-way valve, hand-operated direction valve, oil suction in integrated valve plate
Valve, the first oiling check valve, the second oiling check valve and the first hydraulic control one-way valve, the hydraulic control guide two-position four way change valve are set
There are a mouthfuls, b mouthfuls, T mouthfuls, pilot port K1, pilot port K2, hand-operated direction valve is equipped with P mouthfuls, T mouthfuls, input port；First oiling check valve
The connection of the P of entrance and hand-operated direction valve mouth, the entrance of the second oiling check valve and the T mouth of hand-operated direction valve connect；First oiling
The outlet of check valve is connect by duct with the A1 of integrated valve plate mouth, and the outlet of the second oiling check valve passes through duct and pile-up valve
The B1 mouth of plate connects；The outlet of second hydraulic control one-way valve is connect by duct with the A1 of integrated valve plate mouth, the second hydraulic control one-way valve
Entrance connect with a mouth of hydraulic control guide's two-position four way change valve, the pilot port of the second hydraulic control one-way valve and the T of hand-operated direction valve
Mouth connection；The pilot port K2 of hydraulic control guide's two-position four way change valve and the T mouth of hand-operated direction valve connect；First hydraulic control one-way valve
Outlet is connect with the B1 of integrated valve plate mouth, the entrance of the first hydraulic control one-way valve and the b mouth company of hydraulic control guide two-position four way change valve
It connects, the pilot port of the first hydraulic control one-way valve and the P mouth of hand-operated direction valve connect；The pilot port of hydraulic control guide's two-position four way change valve
The connection of the P of K1 and hand-operated direction valve mouth；The T mouth of hydraulic control guide's two-position four way change valve is connect with the entrance of oil sucting one-way valve；Hand
The input port of dynamic reversal valve and the outlet of oil sucting one-way valve connect；Lifting switching handle is connect with hand-operated direction valve；
The entrance of the oil sucting one-way valve is connect with duct T1, and the outlet of oil sucting one-way valve is connect with compression duct P2；Pile-up valve
The A1 mouth of plate is connected by decline oil pipe with the back cavity of oil cylinder, and B1 mouthfuls are connected by rising oil pipe with the ante-chamber of oil cylinder.
2. hand-hydraulic apparatus for bending according to claim 1, which is characterized in that the lower mold passes through double with workbench
Inclined-plane dovetail configuration links together.
3. hand-hydraulic apparatus for bending according to claim 1, which is characterized in that the side wall of the centre bore of the guide pad
Equipped with sliding slot, telescopic rod connects flat key, and flat key is embedded in the sliding slot of the side wall of guide pad centre bore.
4. hand-hydraulic apparatus for bending according to claim 1, which is characterized in that be connected with oiling plug screw on the fuel tank
And oil ga(u)ge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552479.2A CN110303076B (en) | 2019-06-25 | 2019-06-25 | Manual hydraulic bending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552479.2A CN110303076B (en) | 2019-06-25 | 2019-06-25 | Manual hydraulic bending device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110303076A true CN110303076A (en) | 2019-10-08 |
| CN110303076B CN110303076B (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910552479.2A Active CN110303076B (en) | 2019-06-25 | 2019-06-25 | Manual hydraulic bending device |
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| Country | Link |
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| CN (1) | CN110303076B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112140613A (en) * | 2020-08-14 | 2020-12-29 | 中国船舶重工集团公司第七0四研究所 | Small-size hydraulic press system of superhigh pressure |
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| CN101629591A (en) * | 2009-06-30 | 2010-01-20 | 常州市瑞泰工程机械有限公司 | Pressurizing cylinder |
| CN201679029U (en) * | 2009-12-31 | 2010-12-22 | 福田雷沃国际重工股份有限公司 | Hydraulically controlled loop on the boom descending of excavator |
| CN102274876A (en) * | 2011-08-10 | 2011-12-14 | 河南省电力公司漯河供电公司 | V-shaped bending machine |
| CN204220691U (en) * | 2014-11-14 | 2015-03-25 | 山东水泊焊割设备制造有限公司 | Wing plate bending tool |
| CN206582189U (en) * | 2017-02-14 | 2017-10-24 | 南京麦克菲自动控制有限公司 | A kind of hydraulic system suitable for bender follow-up supporting mechanism |
| CN210172238U (en) * | 2019-06-25 | 2020-03-24 | 威海华东数控股份有限公司 | Manual hydraulic bending device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112140613A (en) * | 2020-08-14 | 2020-12-29 | 中国船舶重工集团公司第七0四研究所 | Small-size hydraulic press system of superhigh pressure |
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