CN109595206B - Ultrahigh-pressure clamping cylinder device - Google Patents
Ultrahigh-pressure clamping cylinder device Download PDFInfo
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- CN109595206B CN109595206B CN201811618386.7A CN201811618386A CN109595206B CN 109595206 B CN109595206 B CN 109595206B CN 201811618386 A CN201811618386 A CN 201811618386A CN 109595206 B CN109595206 B CN 109595206B
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- piston rod
- cylinder body
- oil cylinder
- oil
- groove
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses an ultrahigh-pressure clamping cylinder device, which belongs to the field of ultrahigh-pressure clamping cylinder devices and comprises an upright post, a workbench, an oil cylinder body and a piston rod; the oil cylinder body is movably arranged on the right side surface of the upright post, the piston rod is movably arranged inside the oil cylinder body, the workbench is fixedly arranged below the oil cylinder body, and the bottom of the piston rod is movably connected with the upper surface of the workbench; according to the invention, through the oil cylinder body and the piston rod, the piston rod is movably sleeved with the oil cylinder body, the piston rod is sealed by the guide sleeve, the leakage of pressurized hydraulic oil is avoided, the hydraulic oil in the rod cavity between the piston rod and the guide sleeve is discharged by filling ultrahigh-pressure hydraulic oil into the rodless cavity, so that the piston rod moves downwards and clamps the upper end of the workbench, and the buffer oil cavity is arranged, so that the buffer oil cavity can absorb part of the hydraulic oil in the rodless cavity, the buffer oil cavity can vacate enough time for the hydraulic pump to stop pressurizing, and the damage to equipment caused by overlarge stress between the piston rod and the workbench is avoided.
Description
Technical Field
The invention relates to the field of ultrahigh-pressure clamping cylinder devices, in particular to an ultrahigh-pressure clamping cylinder device.
Background
The clamping device of the moving platform of the existing hydraulic machine is generally arranged at the lower end part of the moving platform, has small clamping force, can not meet the development trend of large die drawing force of the existing isothermal forging press, and has poor visibility and inconvenient operation and maintenance. The invention is characterized in that the upper plane of the movable workbench is clamped, the clamping cylinder device is arranged at the inner side of the upright post, the piston rod moves downwards or returns, the movable workbench can be clamped or loosened, the visibility is good, the operation and the maintenance are convenient, the clamping tonnage is large, and the development requirement of large die drawing force of the existing isothermal forging press is completely met.
The clamping force of the clamping device of the moving table of the existing hydraulic press is small, and the clamping position is generally arranged at the lower end part of the moving table, so that the development trend of large die drawing force of the existing isothermal forging press cannot be met.
Disclosure of Invention
The invention aims to solve the problem that a clamping device of a moving table has small clamping force and cannot meet the development trend of large die drawing force of the existing isothermal forging press, and provides an ultrahigh-pressure clamping cylinder device.
In order to achieve the purpose, the invention adopts the following technical scheme:
an ultrahigh pressure clamping cylinder device comprises an upright post, a workbench, an oil cylinder body and a piston rod; the oil cylinder body movable mounting be on the right side surface of stand, piston rod movable mounting be in the inside of oil cylinder body, workstation fixed mounting in the below of oil cylinder body and the upper surface swing joint of the bottom of piston rod and workstation, the piston rod in between the internal surface of lower part and oil cylinder body fixed mounting have the guide pin bushing, the inner circle of guide pin bushing on the surface be provided with the sealing layer, the oil cylinder body in be provided with the rodless chamber between top and the piston rod, guide pin bushing and piston rod between be provided with the pole chamber, the upside outer lane of piston rod be provided with the sealing washer slot, the surface activity of sealing washer slot cup jointed super high pressure sealing washer.
Preferably, the bottom surface of the guide sleeve and the outer ring of the bottom surface of the oil cylinder body are both vertically provided with threaded holes, the threaded holes are in threaded connection with first screws, the inner ends of the first screws penetrate through the guide sleeve and are in threaded connection with the bottom surface of the oil cylinder body, a first gasket is movably sleeved between the first screws and the bottom surface of the guide sleeve, and the first screws are convenient for movable connection between the guide sleeve and the oil cylinder body.
Preferably, the sealing layer include guidance tape, ste seal and Yx circle, the inner wall of guide pin bushing on the surface by last fixed cover in proper order under to have connected guidance tape, ste seal and Yx circle, the bottom surface activity of guide pin bushing cup jointed the dust ring, the activity of guide pin bushing outer wall and the contact department of the hydro-cylinder body cup jointed the static seal O type circle, the setting of sealing layer is avoided hydraulic oil to spill over under the superhigh pressure.
Preferably, the surface of the oil cylinder body and the right side surface of the stand column are provided with connecting holes, the connecting holes are connected with second screws in a threaded mode, the inner ends of the second screws penetrate through the oil cylinder body and are connected with the stand column in a threaded mode, the screw caps of the second screws are movably sleeved between the oil cylinder body, and the second screws are arranged to facilitate connection between the oil cylinder body and the stand column.
Preferably, still include the hydraulic pump, the first connecting pipe of output pipe mouth fixedly connected with of the right surface upside of hydraulic pump, the output pipe mouth fixedly connected with second connecting pipe of the right surface downside of hydraulic pump, the other end of first connecting pipe run through the inside at no pole chamber of oil cylinder body fixed mounting, the other end of second connecting pipe run through oil cylinder body fixed mounting and have the inside in pole chamber, the middle part fixed mounting of first connecting pipe have first solenoid valve, the middle part fixed mounting of second connecting pipe have the second solenoid valve, the surface of first connecting pipe and second connecting pipe on equal fixed mounting have the oil pipe spring, the setting of hydraulic pump can drive the piston rod and reciprocate.
Preferably, the bottom surface of the piston rod is provided with an installation groove, the two sides of the installation groove are fixedly provided with connecting blocks, a buffer plate is movably arranged in the mounting groove, a central groove is arranged in the middle of the piston rod, the inside of the central groove is movably provided with a connecting rod, the bottom end of the connecting rod is fixedly connected with the middle part of the upper surface of the buffer plate, the bottom surface of the buffer plate is fixedly provided with an upper clamping sheet, the left side of the upper surface of the workbench is provided with an engaging groove, the two sides of the meshing groove are fixedly provided with meshing blocks, the upper surface in the meshing groove is fixedly provided with a lower clamping sheet, go up the joint piece and match with joint piece down, connecting block and meshing piece phase-match, buffer board and mounting groove upper surface between fixed mounting have buffer spring, go up the setting of joint piece and lower joint piece and can make piston rod and workstation be connected completely.
Preferably, the upper side inside the piston rod is provided with a moving groove, the upper end of the central groove is fixedly connected with the bottom end of the moving groove, a moving plate is movably sleeved in the moving groove, the middle part of the bottom surface of the moving plate is fixedly connected with the upper end of the connecting rod, the outer surface of the upper side of the piston rod is uniformly provided with buffer oil cavities which are positioned in the rodless cavity, the outer side of the buffer oil cavity is vertically provided with a sealing groove, the outer side edge of the movable plate is vertically meshed and connected with the sealing groove, the bottom of the sealing groove is provided with a clamping interface which is meshed and connected with the outer side edge of the moving plate, the oil inlet holes are uniformly formed in the edge of the outer side of the moving plate and are matched with the buffer oil cavity, and the pressure in the rodless cavity can be temporarily reduced due to the arrangement of the buffer oil cavity, so that the workbench is buffered.
Compared with the prior art, the invention provides an ultrahigh-pressure clamping cylinder device, which has the following beneficial effects:
1. the ultrahigh-pressure clamping cylinder device is characterized in that an oil cylinder body and a piston rod are arranged, the oil cylinder body is in threaded connection with an upright column through a second screw, a second gasket is movably sleeved between the second screw and the oil cylinder body to increase the stressed area, the piston rod is movably sleeved inside the oil cylinder body, the piston rod is fixed inside the oil cylinder body through a movably sleeved guide sleeve at the top, the guide sleeve is in threaded connection with the bottom surface of the oil cylinder body through a first screw, a first gasket is movably sleeved between the first screw and the bottom surface of the guide sleeve to increase the stressed area, a rodless cavity is arranged between the upper end of the piston rod and the inside of the oil cylinder body, a rod cavity is arranged between the piston rod and the guide sleeve, hydraulic oil is filled into the rodless cavity, the piston rod can move downwards by discharging the hydraulic oil in the rod cavity to further tighten a workbench, and the hydraulic oil is filled into the rod cavity in the same way, the hydraulic oil discharged from the interior of the rodless cavity can make the piston rod move upwards, so as to avoid the leakage of the hydraulic oil in the rodless cavity, a sealing ring groove is arranged on the outer surface of the piston rod, a first gasket is movably sleeved on the outer surface of the sealing ring groove, the first gasket is meshed and connected with the inner ring of the oil cylinder body so as to seal the rodless cavity, so as to avoid the leakage of the hydraulic oil in the rod cavity, a sealing layer is fixedly arranged on the inner surface of the guide sleeve, a guide belt in the sealing layer plays a role in guiding, in order to prevent the cylinder barrel from being worn with the piston rod, the arrangement of the steckel seal can be used as a reciprocating sealing element which can bear the unidirectional action of high pressure, low pressure or alternating pressure, and the Yx ring can also be used for sealing the piston rod in the reciprocating hydraulic oil cylinder, and a static sealing O-shaped ring, the arrangement of the dust ring can prevent external dust from entering the oil cylinder body so as to influence sealing, and the arrangement of the dust ring can clamp the upper end of the workbench and has large clamping force, so that the development trend of large die drawing force of the existing isothermal forging press can be met.
2. The ultrahigh pressure clamping cylinder device is characterized in that a hydraulic pump is arranged, the hydraulic pump is fixedly connected with a rodless cavity through a first connecting pipe, the hydraulic pump is fixedly connected with a rod cavity through a second connecting pipe, a first electromagnetic valve is fixedly arranged on the first connecting pipe, a second electromagnetic valve is fixedly arranged on the second connecting pipe, when the hydraulic pump fills hydraulic oil into the rodless cavity through the first connecting pipe and discharges the hydraulic oil in the rod cavity through the second connecting pipe, the piston rod can move downwards to tighten the workbench, and similarly, the hydraulic pump fills hydraulic oil into the rod cavity through the second connecting pipe, the hydraulic oil in the rodless cavity is discharged through the first connecting pipe, so that the piston rod moves upwards to achieve the purpose of loosening the workbench, because the ultrahigh pressure hydraulic pump is adopted in the invention, in order to increase the compressive strength of the first connecting pipe and the second connecting pipe, the oil pipe spring is fixedly arranged on the outer surfaces of the first connecting pipe and the second connecting pipe.
3. In the ultrahigh-pressure clamping cylinder device, when a hydraulic pump pressurizes and drives a piston rod to move downwards, due to the pressure of ultrahigh pressure during use, if pressurization is not stopped timely, the piston rod and a workbench are damaged, therefore, a mounting groove is arranged on the bottom surface of the piston rod, buffer plates are arranged on two sides of the mounting groove, in the process of downward movement of the piston rod, an upper clamping sheet and a lower clamping sheet are meshed and connected with each other to avoid relative sliding, the piston rod slowly moves downwards, a buffer spring between the buffer plates and the mounting groove is compressed, the buffer plates drive a connecting rod in a central groove to move upwards, a movable plate at the upper end of the connecting rod moves upwards along a moving groove, in the process of moving the movable plate, the outer side edge of the movable plate is not meshed and connected with a clamping port, and an oil inlet hole in the movable plate slowly moves upwards, the oil inlet hole is communicated with the buffer oil cavity, hydraulic oil in the rodless cavity enters the buffer oil cavity, so that the pressure in the rodless cavity and the pressure in the buffer oil cavity are reduced, enough time can be vacated for the hydraulic pump to stop feeding oil into the first connecting pipe through the arrangement, and when the piston rod is connected with the workbench, the connecting block is movably connected with the meshing block and firmly fixes the workbench.
The device is characterized in that the piston rod is movably sleeved with the oil cylinder body through the oil cylinder body and the piston rod, the piston rod is sealed through a guide sleeve, leakage of pressurized hydraulic oil is avoided, the hydraulic oil in a rod cavity between the upper end of the oil cylinder body and the piston rod is discharged through filling ultrahigh-pressure hydraulic oil into a rodless cavity between the upper end of the oil cylinder body and the piston rod, the piston rod moves downwards and clamps the upper end of a workbench, and the buffer oil cavity is arranged and can absorb part of the hydraulic oil in the rodless cavity, so that enough time can be saved for the hydraulic pump to stop pressurizing, and the phenomenon that the piston rod and the workbench are stressed too much to damage equipment is avoided.
Drawings
Fig. 1 is a schematic structural diagram of an ultrahigh-pressure clamping cylinder device according to the present invention;
FIG. 2 is a schematic structural diagram of the outer surface of the piston rod of the ultra-high pressure clamping cylinder device according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a schematic structural diagram of a sealing layer of an ultrahigh-pressure clamping cylinder device according to the present invention;
FIG. 5 is a schematic structural view of an outer surface of a cylinder body of an ultra-high pressure clamping cylinder device according to the present invention;
FIG. 6 is a schematic structural diagram of an outer surface of a first connecting pipe of an ultrahigh pressure clamping cylinder device according to the present invention;
FIG. 7 is a cross-sectional view of a piston rod of an ultra-high pressure clamping cylinder apparatus in accordance with the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7 at B;
fig. 9 is a partial enlarged view at C in fig. 7.
In the figure: 1. a column; 2. a piston rod; 3. a cylinder block; 4. a guide sleeve; 5. a work table; 6. a rodless cavity; 7. an ultra-high pressure seal ring; 8. a sealing layer; 9. a rod cavity; 10. a hydraulic pump; 11. a first connecting pipe; 12. a second connecting pipe; 13. a first solenoid valve; 14. a second solenoid valve; 15. a sealing ring groove; 16. a first screw; 17. a first gasket; 18. a guide belt; 19. performing steckel; 20. a Yx circle; 21. a dust ring; 22. a second screw; 23. a second gasket; 24. an oil pipe spring; 25. an engagement groove; 26. a central slot; 27. a connecting rod; 28. moving the plate; 29. an engagement block; 30. a lower clip sheet; 31. mounting grooves; 32. connecting blocks; 33. a buffer plate; 34. an upper clip sheet; 35. a buffer spring; 36. a moving groove; 37. a buffer oil cavity; 38. an oil inlet hole; 39. a card interface; 40. and (4) statically sealing an O-shaped ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The specific implementation case is as follows:
example 1: referring to fig. 1-5, the ultrahigh pressure clamping cylinder device comprises a vertical column 1, a workbench 5, an oil cylinder body 3 and a piston rod 2; the oil cylinder body 3 is movably arranged on the right side surface of the upright post 1, the piston rod 2 is movably arranged inside the oil cylinder body 3, the workbench 5 is fixedly arranged below the oil cylinder body 3, the bottom of the piston rod 2 is movably connected with the upper surface of the workbench 5, a guide sleeve 4 is fixedly arranged between the middle lower part of the piston rod 2 and the inner surface of the oil cylinder body 3, a sealing layer 8 is arranged on the surface of the inner ring of the guide sleeve 4, a rodless cavity 6 is arranged between the inner top of the oil cylinder body 3 and the piston rod 2, a rod cavity 9 is arranged between the guide sleeve 4 and the piston rod 2, a sealing ring groove 15 is arranged on the outer ring of the upper side of the piston rod 2, and an.
Threaded holes are vertically formed in the bottom surface of the guide sleeve 4 and the outer ring of the bottom surface of the oil cylinder body 3, a first screw 16 is connected to the threaded holes in an internal thread mode, the inner end of the first screw 16 penetrates through the guide sleeve 4 and is in threaded connection with the bottom surface of the oil cylinder body 3, and a first gasket 17 is movably sleeved between the first screw 16 and the bottom surface of the guide sleeve 4.
The sealing layer 8 comprises a guide belt 18, a Stent seal 19 and a Yx ring 20, the guide belt 18, the Stent seal 19 and the Yx ring 20 are fixedly sleeved on the surface of the inner wall of the guide sleeve 4 from top to bottom in sequence, a dust ring 21 is movably sleeved on the outer surface of the bottom of the guide sleeve 4, and a static sealing O-shaped ring 40 is movably sleeved at the contact part of the outer wall of the guide sleeve 4 and the oil cylinder body 3.
The outer surface of the oil cylinder body 3 and the right side surface of the upright post 1 are both provided with connecting holes, the connecting holes are internally threaded with second screws 22, the inner ends of the second screws 22 penetrate through the oil cylinder body 3 to be in threaded connection with the upright post 1, and the nuts of the second screws 22 are movably sleeved with second gaskets 23 between the oil cylinder body 3.
The ultrahigh-pressure clamping cylinder device is characterized in that an oil cylinder body 3 and a piston rod 2 are arranged, the oil cylinder body 3 is in threaded connection with an upright post 1 through a second screw 22, a second gasket 23 is movably sleeved between the second screw 22 and the oil cylinder body 3 and used for increasing the stressed area, the piston rod 2 is movably sleeved inside the oil cylinder body 3, the piston rod 2 is fixed inside the oil cylinder body 3 through a movably sleeved guide sleeve 4 at the top, the guide sleeve 4 is in threaded connection with the bottom surface of the oil cylinder body 3 through a first screw 16, a first gasket 17 is also movably sleeved between the first screw 16 and the bottom surface of the guide sleeve 4 and used for increasing the stressed area, a rodless cavity 6 is arranged between the upper end of the piston rod 2 and the inside of the oil cylinder body 3, a rod cavity 9 is arranged between the piston rod 2 and the guide sleeve 4, hydraulic oil is injected into the rodless cavity 6, and hydraulic oil is discharged from the rod cavity 9 to enable the piston rod 2 to, further, the workbench 5 is tightened, hydraulic oil is filled into the rod cavity 9 in the same way, the piston rod 2 can move upwards by discharging the hydraulic oil in the rodless cavity 6, in order to avoid the leakage of the hydraulic oil in the rodless cavity 6, a sealing ring groove 15 is arranged on the outer surface of the piston rod 2, a first gasket 17 is movably sleeved on the outer surface of the sealing ring groove 15, the first gasket 17 is meshed and connected with the inner ring of the oil cylinder body 3 so as to seal the rodless cavity 6, in order to avoid the leakage of the hydraulic oil in the rod cavity 9, a sealing layer 8 is fixedly arranged on the inner surface of the guide sleeve 4, a guide belt 18 in the sealing layer 8 is fixedly arranged, the guide belt 18 plays a guiding role, in order to prevent the cylinder barrel from being worn with the piston rod 2, the arrangement of a Stent seal 19 can be used as a reciprocating sealing piece which can bear the unidirectional action of high pressure, low pressure or alternating pressure, and the Yx ring 20 can also be used for sealing the, the static sealing O-shaped ring 40 between the oil cylinder body 3 and the outer surface of the guide sleeve 4 can also achieve the purpose of sealing, the dust ring 21 can prevent external dust from entering the oil cylinder body 3, so that sealing is affected, and through the arrangement, the upper end of the workbench 5 can be clamped tightly, the clamping force is large, and the development trend of large drawing force of the existing isothermal forging press can be met.
Example 2: referring to fig. 1 and 6, the basic difference of embodiment 1 is that the hydraulic pump 10 is further included, an output pipe orifice on the upper side of the right surface of the hydraulic pump 10 is fixedly connected with a first connecting pipe 11, an output pipe orifice on the lower side of the right surface of the hydraulic pump 10 is fixedly connected with a second connecting pipe 12, the other end of the first connecting pipe 11 penetrates through the oil cylinder body 3 and is fixedly installed inside the rodless cavity 6, the other end of the second connecting pipe 12 penetrates through the oil cylinder body 3 and is fixedly installed inside the rod cavity 9, a first electromagnetic valve 13 is fixedly installed in the middle of the first connecting pipe 11, a second electromagnetic valve 14 is fixedly installed in the middle of the second connecting pipe 12, and oil pipe springs 24 are fixedly installed on the outer surfaces of the first connecting pipe 11 and the.
The ultrahigh pressure clamping cylinder device is characterized in that a hydraulic pump 10 is arranged, the hydraulic pump 10 is fixedly connected with a rodless cavity 6 through a first connecting pipe 11, the hydraulic pump 10 is fixedly connected with a rod cavity 9 through a second connecting pipe 12, a first electromagnetic valve 13 is fixedly arranged on the first connecting pipe 11, a second electromagnetic valve 14 is fixedly arranged on the second connecting pipe 12, when the hydraulic pump 10 fills hydraulic oil into the rodless cavity 6 through the first connecting pipe 11 and discharges the hydraulic oil in the rod cavity 9 through the second connecting pipe 12, a piston rod 2 can move downwards to tighten a workbench 5, and similarly, the hydraulic pump 10 fills hydraulic oil into the rod cavity 9 through the second connecting pipe 12, the hydraulic oil in the rodless cavity 6 is discharged through the first connecting pipe 11, so that the piston rod 2 moves upwards to achieve the purpose of loosening the workbench 5, because the ultrahigh pressure hydraulic pump 10 is adopted in the invention, in order to increase the compressive strength of the first and second connection pipes 11 and 12, an oil pipe spring 24 is fixedly installed on the outer surfaces of the first and second connection pipes 11 and 12.
Example 3: referring to fig. 7 to 9, the difference between the embodiment 1 and the embodiment is that a mounting groove 31 is formed in the bottom surface of the piston rod 2, connecting blocks 32 are fixedly mounted on two sides of the mounting groove 31, a buffer plate 33 is movably mounted inside the mounting groove 31, a central groove 26 is formed in the middle of the piston rod 2, a connecting rod 27 is movably mounted inside the central groove 26, the bottom end of the connecting rod 27 is fixedly connected with the middle of the upper surface of the buffer plate 33, an upper clamping piece 34 is fixedly mounted on the bottom surface of the buffer plate 33, an engaging groove 25 is formed in the left side of the upper surface of the workbench 5, engaging blocks 29 are fixedly mounted on two sides of the engaging groove 25, a lower clamping piece 30 is fixedly mounted on the upper surface inside the engaging groove 25, the upper clamping piece 34 is matched with the lower clamping piece 30, the connecting block 32 is matched with the engaging block.
The upper side of the inside of the piston rod 2 is provided with a moving groove 36, the upper end of the central groove 26 is fixedly connected with the bottom end of the moving groove 36, the moving plate 28 is movably sleeved in the moving groove 36, the middle of the bottom surface of the moving plate 28 is fixedly connected with the upper end of the connecting rod 27, the outer surface of the upper side of the piston rod 2 is uniformly provided with a buffer oil cavity 37, the buffer oil cavity 37 is positioned inside the rodless cavity 6, the outer side of the buffer oil cavity 37 is vertically provided with a sealing groove, the outer side edge of the moving plate 28 is vertically meshed and connected with the sealing groove, the bottom of the sealing groove is provided with a clamping port 39, the clamping port 39 is meshed and connected with the outer side edge of the moving.
In the ultrahigh-pressure clamping cylinder device, when the hydraulic pump 10 pressurizes and drives the piston rod 2 to move downwards, due to the pressure of ultrahigh pressure during use, if pressurization is not stopped timely, the piston rod 2 and the workbench 5 are damaged, therefore, the bottom surface of the piston rod 2 is provided with the mounting groove 31, the two sides of the mounting groove 31 are provided with the buffer plates 33, in the process that the piston rod 2 moves downwards, firstly, the upper clamping sheet 34 and the lower clamping sheet 30 are meshed and connected with each other to avoid relative sliding, the piston rod 2 moves downwards slowly, the buffer springs 35 between the buffer plates 33 and the mounting groove 31 are compressed, the buffer plates 33 drive the connecting rod 27 in the central groove 26 to move upwards, the 28 at the upper end of the connecting rod 27 moves upwards along the moving groove 36, in the process that the moving plate 28 moves, the outer side edge of the moving plate 28 is not meshed and connected with the clamping port 39 any more, the oil inlet 38 on the moving plate 28 will move upwards slowly, so that the oil inlet 38 is communicated with the buffer oil cavity 37, the hydraulic oil in the rodless cavity 6 enters the buffer oil cavity 37, the pressure in the rodless cavity 6 and the buffer oil cavity 37 is reduced, through the arrangement, enough time can be vacated for the hydraulic pump 10 to stop feeding oil to the first connecting pipe 11, and when the piston rod 2 is connected with the workbench 5, the connecting block 32 is movably connected with the engaging block 29 and firmly fixes the workbench 5.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides an ultrahigh pressure clamping cylinder device, includes stand (1) and workstation (5), its characterized in that: the oil cylinder further comprises an oil cylinder body (3) and a piston rod (2); the oil cylinder body (3) is movably arranged on the right side surface of the upright post (1), the piston rod (2) is movably arranged in the oil cylinder body (3), the workbench (5) is fixedly arranged below the oil cylinder body (3) and the bottom of the piston rod (2) is movably connected with the upper surface of the workbench (5), a guide sleeve (4) is fixedly arranged between the middle lower part of the piston rod (2) and the inner surface of the oil cylinder body (3), a sealing layer (8) is arranged on the surface of an inner ring of the guide sleeve (4), the sealing layer (8) comprises a guide belt (18), a Stent seal (19) and a Yx ring (20), the surface of the inner wall of the guide sleeve (4) is sequentially provided with the guide belt (18), the Stent seal (19) and the Yx ring (20) from top to bottom, a rodless cavity (6) is arranged between the inner top of the oil cylinder body (3) and the piston rod (2), a rod cavity (9) is arranged between the guide sleeve (4) and the piston rod (2), a sealing ring groove (15) is arranged on the outer ring of the upper side of the piston rod (2), and an ultrahigh-pressure sealing ring (7) is movably sleeved on the outer surface of the sealing ring groove (15);
the bottom surface of the piston rod (2) is provided with a mounting groove (31), connecting blocks (32) are fixedly mounted on two sides of the mounting groove (31), a buffer plate (33) is movably mounted inside the mounting groove (31), a central groove (26) is arranged in the middle of the piston rod (2), a connecting rod (27) is movably mounted inside the central groove (26), the bottom end of the connecting rod (27) is fixedly connected with the middle of the upper surface of the buffer plate (33), an upper clamping sheet (34) is fixedly mounted on the bottom surface of the buffer plate (33), an engagement groove (25) is arranged on the left side of the upper surface of the workbench (5), engagement blocks (29) are fixedly mounted on two sides of the engagement groove (25), a lower clamping sheet (30) is fixedly mounted on the inner upper surface of the engagement groove (25), and the upper clamping sheet (34) is matched with the lower clamping sheet (30), the connecting block (32) is matched with the meshing block (29), and a buffer spring (35) is fixedly arranged between the buffer plate (33) and the upper surface of the mounting groove (31);
the piston rod (2) inside upside be provided with shifting chute (36), the upper end of center slot (26) be connected with the bottom of shifting chute (36), shifting chute (36) internalization cup jointed movable plate (28), the basal surface middle part of movable plate (28) and the upper end fixed connection of connecting rod (27), piston rod (2) upside surface evenly be provided with cushion oil chamber (37), cushion oil chamber (37) be located the inside of rodless chamber (6), the outside vertical seal groove that is provided with of cushion oil chamber (37), the outside border of movable plate (28) vertical be connected with the seal groove meshing, the bottom of seal groove be provided with joint mouth (39), the outside border meshing of joint mouth (39) and movable plate (28) be connected, the outside border of movable plate (28) evenly be provided with inlet port (38), the oil inlet hole (38) is matched with the buffer oil cavity (37).
2. The ultra-high pressure clamping cylinder device as set forth in claim 1, wherein: the bottom surface of the guide sleeve (4) and the outer ring of the bottom surface of the oil cylinder body (3) are vertically provided with threaded holes, the threaded holes are connected with first screws (16) in an internal thread mode, the inner ends of the first screws (16) penetrate through the guide sleeve (4) to be in threaded connection with the bottom surface of the oil cylinder body (3), and first gaskets (17) are movably sleeved between the first screws (16) and the bottom surface of the guide sleeve (4).
3. The ultra-high pressure clamping cylinder device as set forth in claim 1, wherein: the outer surface of the bottom of the guide sleeve (4) is movably sleeved with a dustproof ring (21), and the contact part of the outer wall of the guide sleeve (4) and the oil cylinder body (3) is movably sleeved with a static sealing O-shaped ring (40).
4. The ultra-high pressure clamping cylinder device as set forth in claim 1, wherein: the outer surface of the oil cylinder body (3) and the right side surface of the upright post (1) are provided with connecting holes, the connecting holes are internally connected with second screws (22), the inner ends of the second screws (22) penetrate through the oil cylinder body (3) and are in threaded connection with the upright post (1), and nuts of the second screws (22) are movably sleeved with second gaskets (23) between the oil cylinder body (3).
5. The ultra-high pressure clamping cylinder device as set forth in claim 1, wherein: still include hydraulic pump (10), the output pipe mouth fixedly connected with first connecting pipe (11) of the right side surface upside of hydraulic pump (10), the output mouth of pipe fixedly connected with second connecting pipe (12) of the right side surface downside of hydraulic pump (10), the other end of first connecting pipe (11) run through hydro-cylinder body (3) fixed mounting in the inside of no pole chamber (6), the other end of second connecting pipe (12) run through hydro-cylinder body (3) fixed mounting have the inside of pole chamber (9), the middle part fixed mounting of first connecting pipe (11) have first solenoid valve (13), the middle part fixed mounting of second connecting pipe (12) have second solenoid valve (14), the surface of first connecting pipe (11) and second connecting pipe (12) on equal fixed mounting have oil pipe spring (24).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618386.7A CN109595206B (en) | 2018-12-28 | 2018-12-28 | Ultrahigh-pressure clamping cylinder device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618386.7A CN109595206B (en) | 2018-12-28 | 2018-12-28 | Ultrahigh-pressure clamping cylinder device |
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| Publication Number | Publication Date |
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| CN109595206A CN109595206A (en) | 2019-04-09 |
| CN109595206B true CN109595206B (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3404484A1 (en) * | 1984-02-06 | 1985-08-14 | Mannesmann AG, 4000 Düsseldorf | Fixing for the moving crosshead for a hydraulic forging press |
| CN85204025U (en) * | 1985-10-01 | 1986-06-11 | 北京工业学院 | Crushing grinder |
| SU1541873A1 (en) * | 1988-05-30 | 1995-02-09 | Воронежское производственное объединение по выпуску тяжелых механических прессов "Воронежтяжмехпресс" | Automatized complex of equipment for cylinder type pieces hot die-stamping |
| CN202301268U (en) * | 2011-10-19 | 2012-07-04 | 南京德凡传动设备有限公司 | Hydraulic cylinder |
| CN108127450A (en) * | 2018-02-02 | 2018-06-08 | 青州德威动力有限公司 | A kind of hydraulic clamp type tooling and its operating method |
-
2018
- 2018-12-28 CN CN201811618386.7A patent/CN109595206B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3404484A1 (en) * | 1984-02-06 | 1985-08-14 | Mannesmann AG, 4000 Düsseldorf | Fixing for the moving crosshead for a hydraulic forging press |
| CN85204025U (en) * | 1985-10-01 | 1986-06-11 | 北京工业学院 | Crushing grinder |
| SU1541873A1 (en) * | 1988-05-30 | 1995-02-09 | Воронежское производственное объединение по выпуску тяжелых механических прессов "Воронежтяжмехпресс" | Automatized complex of equipment for cylinder type pieces hot die-stamping |
| CN202301268U (en) * | 2011-10-19 | 2012-07-04 | 南京德凡传动设备有限公司 | Hydraulic cylinder |
| CN108127450A (en) * | 2018-02-02 | 2018-06-08 | 青州德威动力有限公司 | A kind of hydraulic clamp type tooling and its operating method |
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| Publication number | Publication date |
|---|---|
| CN109595206A (en) | 2019-04-09 |
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