CN109555737B - Locking pump for locking slide block oil cylinder of quick punching machine - Google Patents
Locking pump for locking slide block oil cylinder of quick punching machine Download PDFInfo
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- CN109555737B CN109555737B CN201910061784.1A CN201910061784A CN109555737B CN 109555737 B CN109555737 B CN 109555737B CN 201910061784 A CN201910061784 A CN 201910061784A CN 109555737 B CN109555737 B CN 109555737B
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- 238000004080 punching Methods 0.000 title abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 17
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 18
- 239000003921 oil Substances 0.000 description 124
- 239000010720 hydraulic oil Substances 0.000 description 16
- 238000005299 abrasion Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
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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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- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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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
- F15B15/26—Locking mechanisms
-
- 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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention provides a locking pump for locking a slide block oil cylinder of a rapid punch, which comprises: locking the pump housing; a first piston installed at the left end side of the locking pump housing; an unloading one-way valve arranged on the right side of the first piston; the oil return port is arranged at the bottom of the locking pump shell and is communicated with the unloading one-way valve; the cylinder cover is arranged at the left end side of the locking pump shell and wraps the first piston, an unloading air supply port is arranged in the middle of the cylinder cover, and the unloading air supply port is communicated with the first piston; an oil outlet arranged in the middle of the front side of the locking pump shell, and a discharge one-way valve is arranged at the oil outlet; the oil suction port is arranged at the bottom of the locking pump shell, and a suction one-way valve is arranged at the oil suction port; and an air pump installed on the right side of the locking pump housing. The locking pump for locking the slide block oil cylinder of the rapid punching machine can ensure that the locking pump cannot be influenced by the oil pressure change in the slide block oil cylinder in the rapid punching process, and can better maintain the stability of the oil cylinder pressure.
Description
Technical Field
The invention relates to a locking pump, in particular to a locking pump for locking a slide block oil cylinder of a rapid punch.
Background
The punch press is a stamping press. In national production, the stamping process has the advantages of saving materials and energy sources, being high in efficiency, not high in technical requirements for operators and being capable of making products which cannot be achieved by mechanical processing through various die applications compared with the traditional mechanical processing, so that the stamping process is increasingly widely used.
The stamping production is mainly aimed at the plate material. Through the mould, blanking, punching, forming, deep drawing, trimming, fine blanking, shaping, riveting, extrusion and the like can be performed, and the die is widely applied to various fields. For example, a switch socket, a cup, a cupboard, a dish, a computer case and even a missile aircraft, which are used by us, have a plurality of accessories which can be produced by a punch through a die.
The design principle of the punch press is that the circular motion is converted into linear motion, the main motor is used for outputting force to drive the flywheel, and the clutch is used for driving the gear, the crankshaft (or eccentric gear), the connecting rod and the like to operate so as to achieve the linear motion of the sliding block, and the motion from the main motor to the connecting rod is circular motion. The driving force of the slide block can be divided into two types, namely mechanical type and hydraulic type, so that the punching machine is divided into a mechanical punching machine and a hydraulic type according to different driving forces.
The existing high-speed punch is generally not provided with a forced lubrication system, only butter lubrication is adopted at the joint part, a sliding block type structure is adopted for the punch, the punch is easy to damage, an overload protection valve is generally adopted for protecting a sliding block oil cylinder of the punch in the prior art, but the pressure stability in the oil cylinder of the high-speed punch is difficult to meet by simply using the overload protection valve, the abrasion of the sliding block oil cylinder is too fast, and the precision is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the locking pump for locking the slide block oil cylinder of the rapid punching machine, which can ensure that the locking pump is not influenced by the oil pressure change in the slide block oil cylinder in the rapid punching process, can better maintain the stability of the pressure of the oil cylinder and reduce the abrasion of the oil cylinder.
In order to achieve the technical scheme, the invention provides a locking pump for locking a slide block oil cylinder of a rapid punch, which comprises the following components: locking the pump housing; the first piston is arranged at the left end side of the locking pump shell, the push rod is fixedly arranged at the right side of the first piston, and the surface of the push rod is sleeved with the reset spring; an unloading one-way valve arranged on the right side of the first piston; the oil return port is arranged at the bottom of the locking pump shell and is communicated with the unloading one-way valve; the pressure switch is arranged at the top of the locking pump shell and is communicated with the unloading one-way valve; the cylinder cover is arranged at the left end side of the locking pump shell and wraps the first piston, an unloading air supply port is arranged in the middle of the cylinder cover, and the unloading air supply port is communicated with the first piston; the oil outlet is arranged in the middle of the front side of the locking pump shell, a discharge one-way valve is arranged at the oil outlet, and the discharge one-way valve is arranged on the right side of the unloading one-way valve; the oil suction port is arranged at the bottom of the locking pump shell, and a suction one-way valve is arranged at the oil suction port; install the air pump on tight lock pump shell right side, the air pump includes the air pump head, be provided with the air pump air inlet on the air pump head, install the second piston in the air pump head, air pump air inlet and second piston intercommunication, install the piston rod on the second piston, piston rod and second piston butt joint department install the piston reset spring seat, and piston reset spring cup joints on the piston rod and piston reset spring's one end is installed on the piston reset spring seat, the one end of piston rod inserts to the seal cover in, the seal cover communicates with the suction check valve of installing in oil suction inlet department.
In the practical application process, compressed air enters from the air inlet of the air pump, so that the air pump pushes the second piston to reciprocate, the second piston is connected with the piston rod, hydraulic oil is sucked from the oil suction port by negative pressure, sucked through the suction one-way valve and then discharged through the discharge one-way valve, and then supplied to the slide block oil cylinder of the rapid punching machine through the oil outlet, the locking oil cylinder acts, the stroke of the oil cylinder is adjustable, once abnormal conditions (sealing of the oil cylinder of the punching machine or pipe joint) are caused, the pressure of the slide block oil cylinder is reduced, the air pump rapidly acts, oil supplementing is carried out, and therefore loss caused by insufficient pressure is compensated. In the oil unloading process, the pneumatic reversing valve stops supplying air to the air pump, meanwhile, the unloading air supply port of the cylinder cover is used for unloading air, the air pressure pushes the first piston, the first piston pushes the push rod, the push rod ejects the unloading one-way valve, high-pressure hydraulic oil flows back to the oil tank from the oil outlet through the oil return port, and therefore oil unloading is accurately completed, the locking pump can be prevented from being influenced by oil pressure change in the sliding block oil cylinder in the rapid stamping process, the stability of the oil cylinder pressure can be better maintained, and the abrasion of the oil cylinder is reduced. In addition, the unloading one-way valve is of a soft sealing one-way valve structure, so that the pressure maintaining performance is more stable than that of steel balls, zero leakage can be achieved, and oil leakage is prevented.
Preferably, the unloading check valve comprises an overflow valve sleeve, a check valve seat, a check valve, a spiral spring and a check valve pad, wherein the check valve seat is sleeved on the outer side of the reset spring, the overflow valve sleeve is sleeved on the outer side of the check valve seat, the check valve is arranged on the check valve seat, the check valve pad is arranged at the joint of the check valve and the check valve seat, the spiral spring is arranged in the middle of the right side of the check valve, the left end of the spiral spring is in contact with the check valve, and the right end of the spiral spring is in contact with the sealing baffle shell. In the actual working process, the unloading air supply port is used for supplying air to push the first piston to move, the first piston pushes the spiral spring to compress through the push rod, so that the one-way valve is opened, high-pressure hydraulic oil flows back to the oil tank from the oil outlet through the oil return port, unloading air supply is stopped, the spiral spring is reset, so that the one-way valve is closed, and one-way communication between the oil outlet and the oil return port can be realized through the unloading one-way valve.
Preferably, the discharge check valve comprises a discharge valve sleeve, a discharge valve cover, a check valve support, a steel ball and a discharge valve seat, wherein the discharge valve seat is arranged at the inner end part of the oil outlet, the discharge valve sleeve is sleeved on the discharge valve seat, the check valve support is arranged in the discharge valve sleeve, the steel ball is placed on the check valve support, and the discharge valve cover seals the steel ball in the discharge valve sleeve. In the actual working process, the discharge valve cover can only be opened in one direction, when the hydraulic oil sucked by the suction one-way valve flows from inside to outside, the discharge valve cover is opened, the hydraulic oil pushes the steel ball and then enters the oil outlet from the discharge valve sleeve, and when the pressure fluctuation occurs in the oil cylinder, the steel ball props against the discharge valve cover and the discharge valve cover cannot be opened reversely due to the fact that the hydraulic oil flows back, so that the hydraulic oil cannot flow back and only flows from inside to outside in one direction can be ensured.
Preferably, the suction check valve comprises a check valve bracket, a steel ball and a suction valve seat, the suction valve seat is arranged on the inner side of the oil suction port, the check valve bracket is arranged on the suction valve seat, the steel ball is arranged on the check valve bracket, when compressed air enters from an air inlet of the air pump, the air pump pushes the second piston to reciprocate, the second piston is connected with a piston rod, the steel ball is sucked upwards by negative pressure, the suction check valve is opened, hydraulic oil is sucked from the oil suction port, when the compressed air stops entering, the piston return spring pushes the second piston to return, the negative pressure disappears, the steel ball falls, and the suction check valve is closed.
Preferably, the oil outlet is provided with a pressure gauge, so that the oil outlet pressure at the oil outlet can be monitored in real time.
Preferably, the air pump head is provided with an exhaust valve, and when the locking pump is newly installed and started for the first time, the exhaust valve needs to be opened to remove air in the pump body and the pipeline.
Preferably, the cylinder cover is in compression connection with the locking pump housing through a gland, so that the tight connection between the cylinder cover and the locking pump housing is ensured.
Preferably, the air pump head is connected with the locking pump shell through a cylinder barrel, and the second piston, the piston return spring and the piston rod are all installed in the cylinder barrel.
The locking pump for locking the slide block oil cylinder of the rapid punching machine has the beneficial effects that:
1) The locking pump for locking the slide block oil cylinder of the rapid punching machine is small in size and ingenious in design, through the cooperation among the first piston, the second piston, the unloading one-way valve, the ejection one-way valve and the suction one-way valve, when oil seepage is caused by abnormal conditions (sealing of the slide block oil cylinder or pipe joints) of the slide block oil cylinder, loss caused by insufficient pressure can be compensated, the locking pump can be prevented from being influenced by oil pressure change in the slide block oil cylinder in the rapid punching process, the stability of the oil cylinder pressure can be better maintained, and the abrasion of the oil cylinder is reduced;
2) The locking pump for locking the slide block oil cylinder of the quick punch has good pressure maintaining performance and high reaction speed, can meet the locking requirement of the slide block oil cylinder of the quick punch, and can not be influenced by the oil pressure change in the slide block oil cylinder in the quick punching process of the machine, so that the stability of the oil pressure is better kept, and the locking accuracy of the oil cylinder is enhanced.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a cross-sectional view of the present invention.
Fig. 5 is a schematic view showing the installation of the exhaust valve in the present invention.
In the figure: 1. a cylinder cover; 2. a first piston; 3. a gland; 4. locking the pump housing; 5. a pressure switch; 6. sealing cover; 7. sealing sleeve; 8. an overflow valve sleeve; 9. a one-way valve seat; 10. a one-way valve; 11. a coil spring; 12. a one-way valve pad; 13. a push rod; 14. a return spring; 15. a piston rod; 16. a spitting valve sleeve; 17. discharging the valve cover; 18. a check valve bracket; 19. a steel ball; 20. spit out the valve seat; 21. a suction valve seat; 22. a cylinder; 23. a second piston; 24. a piston return spring; 25. a piston return spring seat; 26. an air pump head; 27. an exhaust valve; 28. a pressure gauge; 29. an air pump air inlet; 30. an oil outlet; 31. an oil suction port; 32. an oil return port; 33. unloading an air supply port; 100. an unloading one-way valve; 200. a discharge check valve; 300. and sucking the check valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present invention.
Examples: a locking pump for locking a slide block oil cylinder of a rapid punch.
Referring to fig. 1 to 5, a locking pump for locking a slide cylinder of a rapid punch, comprising: locking the pump housing 4; the first piston 2 is arranged at the left end side of the locking pump housing 4, the push rod 13 is fixedly arranged at the right side of the first piston 2, the reset spring 14 is sleeved on the surface of the push rod 13, the first piston 2 can drive the push rod 13 to move, and the reset of the first piston 2 is carried out through the reset spring 14; the cylinder cover 1 is arranged at the left end side of the locking pump housing 4 and wraps the first piston 2, an unloading air supply port 33 is arranged in the middle of the cylinder cover 1, and the unloading air supply port 33 is communicated with the first piston 2; an unloading one-way valve 100 arranged on the right side of the first piston 2, an oil return port 32 arranged at the bottom of the locking pump housing 4 and an oil outlet 30 arranged in the middle of the front side of the locking pump housing 4, wherein the oil return port 32 and the oil outlet 30 are communicated with the unloading one-way valve 100, the unloading one-way valve 100 comprises an overflow valve sleeve 8, a one-way valve seat 9, a one-way valve 10, a spiral spring 11 and a one-way valve pad 12, the one-way valve seat 9 is sleeved on the outer side of the reset spring 14, the overflow valve sleeve 8 is sleeved on the outer side of the one-way valve seat 9, the one-way valve 10 is arranged on the one-way valve seat 9, the one-way valve pad 12 is arranged at the joint of the one-way valve 10 and the one-way valve seat 9, the spiral spring 11 is arranged in the middle of the right side of the one-way valve 10, the left end of the spiral spring 11 is contacted with the one-way valve 10, and the right end of the spiral spring 11 is contacted with the sealing baffle shell; in the actual working process, the unloading air supply port 33 is used for supplying air to push the first piston 2 to move, the first piston 2 pushes the spiral spring 11 to compress through the push rod 13, so that the one-way valve 10 is opened, high-pressure hydraulic oil can flow back to the oil tank from the oil outlet 30 through the oil return port 32, unloading air supply is stopped, the spiral spring 11 is reset, so that the one-way valve 10 is closed, and one-way communication between the oil outlet 30 and the oil return port 32 can be realized through the unloading one-way valve 100;
a discharge check valve 200 installed at the oil outlet 30, the discharge check valve 200 being installed at the right side of the unloading check valve 100, the discharge check valve 200 comprising a discharge valve sleeve 16, a discharge valve cap 17, a check valve bracket 18, a steel ball 19 and a discharge valve seat 20, wherein the discharge valve seat 20 is installed at the inner end of the oil outlet 30, the discharge valve sleeve 16 is sleeved on the discharge valve seat 20, the check valve bracket 18 is installed in the discharge valve sleeve 16, the steel ball 19 is placed on the check valve bracket 18, and the discharge valve cap 17 seals the steel ball 19 in the discharge valve sleeve 16; in the actual working process, the discharge valve cover 17 can only be opened in one direction, when the hydraulic oil sucked by the suction check valve 300 flows from inside to outside, the discharge valve cover 17 is opened, the hydraulic oil pushes the steel ball 19 and then enters the oil outlet 30 from the discharge valve sleeve 16, and when the pressure fluctuation occurs in the oil cylinder, the steel ball 19 props against the discharge valve cover 17 when the hydraulic oil flows back, and the discharge valve cover 17 cannot be opened reversely, so that the hydraulic oil can be ensured not to flow back, and only can flow from inside to outside in one direction;
the air pump is arranged on the right side of the locking pump housing 4 and comprises an air pump head 26, an air pump air inlet 29 is arranged on the air pump head 26, a second piston 23 is arranged in the air pump head 26, the air pump air inlet 29 is communicated with the second piston 23, a piston rod 15 is arranged on the second piston 23, a piston return spring seat 25 is arranged at the joint of the piston rod 15 and the second piston 23, a piston return spring 24 is sleeved on the piston rod 15, one end of the piston return spring 24 is arranged on the piston return spring seat 25, one end of the piston rod 15 is inserted into a sealing sleeve 7, a sealing cover 6 is sleeved on the surface of the sealing sleeve 7, and the sealing sleeve 7 is communicated with an inhalation one-way valve 300 arranged at an oil suction port 31;
an oil suction port 31 arranged at the bottom of the locking pump housing 4, an oil suction check valve 300 is arranged at the oil suction port 31, the oil suction check valve 300 comprises a check valve bracket 18, a steel ball 19 and an oil suction valve seat 21, the oil suction valve seat 21 is arranged at the inner side of the oil suction port 31, the check valve bracket 18 is arranged on the oil suction valve seat 21, the steel ball 19 is arranged on the check valve bracket 18, when compressed air enters from an air pump air inlet 29, the air pump pushes a second piston 23 to reciprocate, the second piston 23 is connected with a piston rod 15, the steel ball 19 is sucked up by negative pressure, the oil suction check valve 300 is opened, hydraulic oil is sucked from the oil suction port 31 and is input to an oil outlet 30, when compressed air stops entering, a piston return spring 24 pushes the second piston 23 to return, the negative pressure disappears, the steel ball 19 falls, and the oil suction check valve 300 is closed;
and a pressure switch 5 arranged at the top of the locking pump housing 4, wherein the pressure switch 5 is communicated with the unloading one-way valve 100, and once the pressure in the locking pump housing 4 is too high, the pressure switch 5 can push the unloading one-way valve 100 to open for pressure unloading.
In this embodiment, in the practical application process, compressed air enters from the air inlet 29 of the air pump, so that the air pump pushes the second piston 23 to reciprocate, the second piston 23 is connected with the piston rod 15, hydraulic oil is sucked from the oil suction port 31 by negative pressure, sucked through the suction check valve 300 and then discharged through the discharge check valve 200, and then supplied to the slide block cylinder of the rapid punching machine through the oil outlet 30, the locking cylinder acts, the stroke of the cylinder is prevented from being adjustable, once abnormal conditions (sealing of the cylinder of the punching machine or pipe joint) cause oil seepage, the pressure of the slide block cylinder is reduced, the air pump can act rapidly, and oil supplementing is performed, thereby compensating for the loss caused by insufficient pressure. In the oil unloading process, the pneumatic reversing valve stops supplying air to the air pump, meanwhile, unloading air supply is carried out through an unloading air supply port 33 of the cylinder cover 1, the air pressure pushes the first piston 2, the first piston 2 pushes the push rod 13, the push rod 13 ejects the unloading one-way valve 100, the unloading one-way valve 100 is opened, high-pressure hydraulic oil flows back to the oil tank from the oil outlet 30 through the oil return port 32, thus the oil unloading is accurately completed, the locking pump can be ensured not to be influenced by the oil pressure change in the sliding block oil cylinder in the rapid stamping process, the stability of the oil cylinder pressure can be better maintained, and the abrasion of the oil cylinder is reduced; in addition, because the unloading check valve 100 is a soft sealing check valve structure, the pressure maintaining performance is more stable than that of steel balls, so that zero leakage can be achieved, and oil leakage can be prevented.
Referring to fig. 1, 4 and 5, a pressure gauge 28 is installed at the oil outlet 30, so as to monitor the oil outlet pressure at the oil outlet 30 in real time, an exhaust valve 27 is installed on the air pump head 26, and when the locking pump is started for the first time, the exhaust valve 27 needs to be opened to exhaust the air in the pump body and the pipeline; the cylinder cover 1 is in compression connection with the locking pump housing 4 through the gland 3 so as to ensure tight connection between the cylinder cover 1 and the locking pump housing 4; the air pump head 26 is connected with the locking pump housing 4 through the cylinder 22, and the second piston 23, the piston return spring 24 and the piston rod 15 are all arranged in the cylinder 22.
The locking pump for locking the slide block oil cylinder of the rapid punching machine is small in size and ingenious in design, and through the cooperation among the first piston 2, the second piston 23, the unloading one-way valve 100, the ejection one-way valve 200 and the suction one-way valve 300, when oil seepage is caused by abnormal conditions (sealing of the slide block oil cylinder or pipe joints of the punching machine) of the slide block oil cylinder, loss caused by insufficient pressure can be compensated, the locking pump can be prevented from being influenced by oil pressure change in the slide block oil cylinder in the rapid punching process, the stability of the oil cylinder pressure can be better maintained, and the abrasion of the oil cylinder is reduced; and the locking pump for locking the slide block oil cylinder of the quick punch has good pressure maintaining performance and high reaction speed, can meet the locking requirement of the slide block oil cylinder of the quick punch, and can not be influenced by the oil pressure change in the slide block oil cylinder in the quick punch process of the machine, so that the stability of the oil pressure is better kept, and the locking accuracy of the oil cylinder is enhanced.
The foregoing is a preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, so that the equivalents and modifications can be made without departing from the spirit of the disclosure.
Claims (6)
1. A locking pump for locking a slide cylinder of a quick press, comprising:
locking the pump housing;
the first piston is arranged at the left end side of the locking pump shell, the push rod is fixedly arranged at the right side of the first piston, and the surface of the push rod is sleeved with the reset spring;
an unloading one-way valve arranged on the right side of the first piston;
the oil return port is arranged at the bottom of the locking pump shell and is communicated with the unloading one-way valve;
the pressure switch is arranged at the top of the locking pump shell and is communicated with the unloading one-way valve;
the cylinder cover is arranged at the left end side of the locking pump shell and wraps the first piston, an unloading air supply port is arranged in the middle of the cylinder cover, and the unloading air supply port is communicated with the first piston;
the oil outlet is arranged in the middle of the front side of the locking pump shell, a discharge one-way valve is arranged at the oil outlet, and the discharge one-way valve is arranged on the right side of the unloading one-way valve;
the oil suction port is arranged at the bottom of the locking pump shell, and a suction one-way valve is arranged at the oil suction port;
the air pump is arranged on the right side of the locking pump shell and comprises an air pump head, an air pump air inlet is arranged on the air pump head, a second piston is arranged in the air pump head, the air pump air inlet is communicated with the second piston, a piston rod is arranged on the second piston, a piston reset spring seat is arranged at the joint of the piston rod and the second piston, the piston reset spring is sleeved on the piston rod, one end of the piston reset spring is arranged on the piston reset spring seat, one end of the piston rod is inserted into a sealing sleeve, and the sealing sleeve is communicated with an inhalation one-way valve arranged at an oil suction port;
the unloading one-way valve comprises an overflow valve sleeve, a one-way valve seat, a one-way valve, a spiral spring and a one-way valve pad, wherein the one-way valve seat is sleeved on the outer side of the reset spring, the overflow valve sleeve is sleeved on the outer side of the one-way valve seat, the one-way valve is arranged on the one-way valve seat, the one-way valve pad is arranged at the joint of the one-way valve and the one-way valve seat, the spiral spring is arranged in the middle of the right side of the one-way valve, the left end of the spiral spring is in contact with the one-way valve, and the right end of the spiral spring is in contact with the sealing baffle shell;
the one-way valve comprises a valve sleeve, a valve cover, a one-way valve support, a steel ball and a valve seat, wherein the valve seat is arranged at the inner end part of the oil outlet, the valve sleeve is sleeved on the valve seat, the one-way valve support is arranged in the valve sleeve, the steel ball is arranged on the one-way valve support, and the valve cover seals the steel ball in the valve sleeve.
2. The locking pump for locking a slide cylinder of a rapid punch according to claim 1, wherein: the suction check valve comprises a check valve bracket, a steel ball and a suction valve seat, wherein the suction valve seat is arranged on the inner side of the oil suction port, the check valve bracket is arranged on the suction valve seat, and the steel ball is arranged on the check valve bracket.
3. The locking pump for locking a slide cylinder of a rapid punch according to claim 1, wherein: and a pressure gauge is arranged at the oil outlet.
4. The locking pump for locking a slide cylinder of a rapid punch according to claim 1, wherein: an exhaust valve is arranged on the air pump head.
5. The locking pump for locking a slide cylinder of a rapid punch according to claim 1, wherein: the cylinder cover is in compression connection with the locking pump shell through a gland.
6. The locking pump for locking a slide cylinder of a rapid punch according to claim 1, wherein: the air pump head is connected with the locking pump shell through a cylinder barrel, and the second piston, the piston return spring and the piston rod are all installed in the cylinder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061784.1A CN109555737B (en) | 2019-01-23 | 2019-01-23 | Locking pump for locking slide block oil cylinder of quick punching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061784.1A CN109555737B (en) | 2019-01-23 | 2019-01-23 | Locking pump for locking slide block oil cylinder of quick punching machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109555737A CN109555737A (en) | 2019-04-02 |
| CN109555737B true CN109555737B (en) | 2024-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910061784.1A Active CN109555737B (en) | 2019-01-23 | 2019-01-23 | Locking pump for locking slide block oil cylinder of quick punching machine |
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| Country | Link |
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| CN (1) | CN109555737B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238796B (en) * | 2019-07-30 | 2024-03-26 | 无锡市特种压力表有限公司 | Quick sealing and locking device for pressure gauge |
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| CN209385419U (en) * | 2019-01-23 | 2019-09-13 | 华茂机械(肇庆)有限公司 | A kind of locking pump for quick slider of punch oil cylinder locking |
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| GB426333A (en) * | 1933-09-02 | 1935-04-02 | Abraham Isaac Logette | Improvements in distributing-valves and valve gear for compressed-air power cylinders |
| CN102392806A (en) * | 2011-12-14 | 2012-03-28 | 中国人民解放军总参谋部第六十研究所 | Pneumatically-driven reciprocating oil pump |
| CN103362895A (en) * | 2013-07-31 | 2013-10-23 | 常州神力电机股份有限公司 | Oil inlet system of 160T punch press overload protection hydraulic oil cylinder |
| CN107756868A (en) * | 2017-11-18 | 2018-03-06 | 浙江灿根智能科技有限公司 | Punch press combined type pump valve Overloading protection apparatus |
| CN208153313U (en) * | 2018-03-25 | 2018-11-27 | 杭州富阳荣鑫机械配件有限公司 | A kind of high pressure maintaining air-driven hydraulic pump |
| CN209385419U (en) * | 2019-01-23 | 2019-09-13 | 华茂机械(肇庆)有限公司 | A kind of locking pump for quick slider of punch oil cylinder locking |
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| CN109555737A (en) | 2019-04-02 |
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