CN109751966B - Hydraulic clamping system, vibrating device and detection method of hydraulic clamping system - Google Patents
Hydraulic clamping system, vibrating device and detection method of hydraulic clamping system Download PDFInfo
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- CN109751966B CN109751966B CN201910095052.4A CN201910095052A CN109751966B CN 109751966 B CN109751966 B CN 109751966B CN 201910095052 A CN201910095052 A CN 201910095052A CN 109751966 B CN109751966 B CN 109751966B
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Abstract
The invention discloses a hydraulic clamping system, vibrating equipment and a detection method of the hydraulic clamping system, wherein the hydraulic clamping system comprises a hydraulic clamping assembly, the hydraulic clamping assembly comprises a plurality of clamping oil cylinders, the plurality of clamping oil cylinders are arranged in parallel, and the clamping oil cylinders move to a standard state under the oil hydraulic pressure of a first hydraulic value; the pressure valve assembly is connected in series with the clamping oil cylinder; the pressure valve assembly is conducted along the liquid inlet direction of the clamping oil cylinder by oil liquid pressure of a first preset pressure value; the first preset pressure value is greater than the first hydraulic value; and the detection piece detects whether the clamping oil cylinder provided with the pressure valve assembly moves to a standard state or not. The technical scheme of the invention aims to conveniently detect that a plurality of clamping oil cylinders of the hydraulic clamping system move to a standard state, and has simple structure and low cost.
Description
Technical Field
The invention relates to the technical field of concrete prefabricated part production, in particular to a hydraulic clamping system, vibrating equipment using the hydraulic clamping system and a detection method of the hydraulic clamping system.
Background
Concrete prefabricated members are widely used in the technical fields of construction, traffic, water conservancy and the like. The production line of the concrete prefabricated member is provided with a pouring station, a vibrating station and the like. At the pouring station, the cloth machine pours concrete into the mould platform, the drive roller on the production line transports the mould platform to the station of vibrating, at the station of vibrating, the mould platform carries out the centre gripping with a plurality of holders on the frame of vibrating to the mould platform vibrates under the drive of the piece that vibrates, thereby unnecessary air in the exhaust concrete carries out closely knit, makes the concrete surface level and smooth, after the operation of the station of vibrating is accomplished, a plurality of holders loosen the mould platform, drive roller drive mould platform transports next station.
In order to prevent the die table from being damaged, the next action can be carried out only by ensuring that the plurality of clamping parts on the vibrating frame reach a standard clamping state or a standard loosening state. The vibrating equipment comprises a hydraulic clamping system for driving a clamping piece to move, wherein a plurality of clamping oil cylinders of the hydraulic clamping system are respectively connected with the plurality of clamping pieces and drive the clamping pieces to move.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a hydraulic clamping system, aiming at conveniently detecting that a plurality of clamping oil cylinders of the hydraulic clamping system move to a standard state, and having simple structure and low cost.
To achieve the above object, the present invention provides a hydraulic clamping system, comprising:
the hydraulic clamping assembly comprises a plurality of clamping oil cylinders which are arranged in parallel, and the clamping oil cylinders move to a standard state under the oil pressure of a first hydraulic value;
the pressure valve assembly is connected in series with the clamping oil cylinder; the pressure valve assembly is conducted along the liquid inlet direction of the clamping oil cylinder by oil liquid pressure of a first preset pressure value; the first preset pressure value is greater than the first hydraulic value; and
the detection piece detects whether the clamping oil cylinder provided with the pressure valve assembly moves to a standard state or not.
Optionally, the clamping cylinder includes a first cylinder body, a first piston rod, a first rodless cavity pipeline and a first rod cavity pipeline, the first piston rod is accommodated in the first cylinder body to divide the first cylinder body into a first chamber and a second chamber which are not communicated with each other, the first rodless cavity pipeline is communicated with the first chamber, and the first rod cavity pipeline is communicated with the second chamber;
the two pressure valve assemblies are respectively connected in series with the first rodless cavity pipeline and the first rod cavity pipeline of the clamping oil cylinder.
Optionally, first predetermined pressure value is for pressing from both sides tight predetermined pressure value or pine take off predetermined pressure value, pressure valve subassembly is including parallelly connected check valve and the pressure valve that sets up, two pressure valve subassembly the check valve all follows the play liquid direction of clamping cylinder switches on, two pressure valve subassembly the pressure valve all follows clamping cylinder's feed liquor direction is greater than respectively at oil hydraulic pressure the tight predetermined pressure value with it switches on when predetermined pressure value takes off.
Optionally, the pressure valve is a sequence valve.
Optionally, the detection member is a photoelectric sensor, and the photoelectric sensor is mounted on the clamping cylinder provided with the pressure valve assembly.
Optionally, the hydraulic clamping system further comprises:
the hydraulic lifting assembly comprises a plurality of lifting oil cylinders which are arranged in parallel;
the hydraulic clamping assembly and the hydraulic lifting assembly are connected in parallel.
Optionally, the hydraulic clamping system comprises:
an oil supply line;
an oil return line; and
the hydraulic clamping assembly is connected with the oil supply pipeline and the oil return pipeline through the first reversing valve; the hydraulic lifting assembly is connected with the oil supply pipeline and the oil return pipeline through the second reversing valve.
Optionally, the first reversing valve comprises a clamped position and a released position;
when the first reversing valve is positioned at the clamping position, the oil supply pipeline is communicated with the first rodless cavity pipelines of the plurality of clamping oil cylinders, and the oil return pipeline is communicated with the first rod cavity pipelines of the plurality of clamping oil cylinders;
when the first reversing valve is located at the release position, the oil supply pipeline is communicated with the first rod cavity pipelines of the hydraulic clamping assemblies, and the oil return pipeline is communicated with the first rod cavity pipelines of the hydraulic clamping assemblies.
Optionally, the lift cylinder includes a second cylinder body, a second piston rod, a second rodless cavity pipeline and a second rod cavity pipeline, the second piston rod portion is accommodated in the second cylinder body to divide the second cylinder body into a third cavity and a fourth cavity which are not communicated with each other, the second rodless cavity pipeline is communicated with the third cavity, and the second rod cavity pipeline is communicated with the fourth cavity;
the second reversing valve comprises an ascending position and a descending position;
when the second reversing valve is in the ascending position, the oil supply pipeline is communicated with the second rodless cavity pipelines of the plurality of lifting oil cylinders, and the oil return pipeline is communicated with the second rod cavity pipelines of the plurality of lifting oil cylinders;
when the second reversing valve is located at the descending position, the oil supply pipeline is communicated with the second rod cavity pipelines of the plurality of lifting oil cylinders, and the oil return pipeline is communicated with the second rodless cavity pipelines of the plurality of lifting oil cylinders.
Optionally, the hydraulic clamping system further includes an overflow valve, the overflow valve is connected in series between the oil supply pipeline and the oil return pipeline and located at an upstream of the first reversing valve and the second reversing valve, the overflow valve has a second preset pressure value, and the second preset pressure value is greater than the first preset pressure value.
The invention also provides vibrating equipment which comprises a vibrating frame, wherein the vibrating frame is provided with a plurality of clamping parts for clamping or loosening the die table, and the vibrating equipment also comprises a hydraulic clamping system;
the hydraulic clamping system includes:
the hydraulic clamping assembly comprises a plurality of clamping oil cylinders which are arranged in parallel, and the clamping oil cylinders move to a standard state under the oil pressure of a first hydraulic value;
the pressure valve assembly is connected in series with the clamping oil cylinder; the pressure valve assembly is conducted along the liquid inlet direction of the clamping oil cylinder by oil liquid pressure of a first preset pressure value; the first preset pressure value is greater than the first hydraulic value; and
the detection piece detects whether the clamping oil cylinder provided with the pressure valve assembly moves to a standard state or not;
each clamping oil cylinder is correspondingly connected with one clamping piece and drives the clamping piece to perform clamping action or loosening action.
The invention also provides a detection method of the vibrating equipment,
providing a hydraulic clamping system;
the hydraulic clamping system includes:
the hydraulic clamping assembly comprises a plurality of clamping oil cylinders which are arranged in parallel, and the clamping oil cylinders move to a standard state under the oil pressure of a first hydraulic value;
the pressure valve assembly is connected in series with the clamping oil cylinder; the pressure valve assembly is conducted along the liquid inlet direction of the clamping oil cylinder by oil liquid pressure of a first preset pressure value; the first preset pressure value is greater than the first hydraulic value; and
the detection piece detects whether the clamping oil cylinder provided with the pressure valve assembly moves to a standard state or not;
after the hydraulic clamping system supplies oil to the plurality of clamping oil cylinders at the oil hydraulic pressure of a first hydraulic value, the hydraulic clamping system supplies oil to the clamping oil cylinders provided with the pressure valve assemblies at a first preset pressure value;
the detection piece detects the clamping oil cylinders provided with the pressure valve assemblies, and when the clamping oil cylinders move to a standard state, all the clamping oil cylinders are judged to move to the standard state.
The hydraulic clamping system in the technical scheme of the invention comprises a hydraulic clamping assembly, wherein a plurality of clamping oil cylinders in the hydraulic clamping assembly are arranged in parallel, and oil in the hydraulic clamping system can supply oil to the plurality of clamping oil cylinders simultaneously. The plurality of clamping oil cylinders can move to a standard state under the oil hydraulic pressure of a first hydraulic value. One of the clamping cylinders is provided with a pressure valve component in series, the pressure valve component can be conducted along the liquid inlet direction of the clamping cylinders by the pressure of a first preset pressure value, when the oil pressure in the hydraulic clamping system gradually rises to the first hydraulic value, a plurality of clamping cylinders without the pressure valve component move to a standard state in succession, when the oil pressure in the hydraulic clamping system continuously increases to the first preset pressure value, the pressure valve component is conducted along the liquid inlet direction of the clamping cylinders, the clamping cylinders with the pressure valve component start to move under the action of the oil pressure, and when a detection part detects that the clamping cylinders move to the standard state, all the clamping cylinders in the hydraulic clamping component can be ensured to move to the standard state, the hydraulic clamping system of the technical scheme of the invention only needs to detect the clamping cylinders with the pressure valve components, the hydraulic clamping assembly can be judged to move to a standard state, and the hydraulic clamping assembly is simple in structure and low in cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of a vibrating apparatus of the present invention with a mold table clamped;
FIG. 2 is a schematic view of the vibrator of FIG. 1;
FIG. 3 is a schematic structural diagram of the lifting device in FIG. 1;
FIG. 4 is a schematic structural diagram of an embodiment of a hydraulic clamping system of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a hydraulic clamping system 100, the hydraulic clamping system 100 is applied to a vibrating apparatus (not shown) on a concrete member production line (not shown), the vibrating apparatus comprises a plurality of vibrating devices 200 and a plurality of lifting devices 300, each vibrating device 200 is provided with at least one clamping member 202, the concrete member production line conveys a mould table 400 to the vibrating apparatus, the plurality of clamping members 202 clamp the mould table 400 so as to vibrate the mould table 400, and when the mould table 400 needs to be removed from the vibrating apparatus, the plurality of clamping members 202 loosen the mould table 400.
Referring to fig. 4, in an embodiment of the present invention, the hydraulic clamping system 100 includes:
the hydraulic clamping assembly 10 comprises a plurality of clamping oil cylinders 11, the plurality of clamping oil cylinders 11 are arranged in parallel, and the clamping oil cylinders 11 reach a standard state under the oil hydraulic pressure with a first hydraulic value;
the pressure valve assembly 20 is connected in series with the clamping oil cylinder 11; the pressure valve assembly 20 is conducted along the liquid inlet direction of the clamping oil cylinder 11 by oil liquid pressure of a first preset pressure value; the first preset pressure value is greater than the first hydraulic value; and
a detecting member (not shown) that detects whether the clamping cylinder 11 provided with the pressure valve assembly 20 is moved to a normal state.
The hydraulic clamping system 100 in the technical scheme of the invention comprises a hydraulic clamping assembly 10, wherein a plurality of clamping oil cylinders 11 in the hydraulic clamping assembly 10 are arranged in parallel, and oil in the hydraulic clamping system 100 can supply oil to the plurality of clamping oil cylinders 11 simultaneously. The plurality of clamping cylinders 11 are each movable to a standard state under oil pressure of a first hydraulic pressure value. A pressure valve assembly 20 is arranged in series on one of the clamping cylinders 11, the pressure valve assembly 20 can be conducted along the liquid inlet direction of the clamping cylinders 11 by the pressure of a first preset pressure value, when the oil pressure in the hydraulic clamping system 100 gradually rises to the first hydraulic value, the plurality of clamping cylinders 11 without the pressure valve assembly 20 move to the standard state, when the oil pressure in the hydraulic clamping system 100 is continuously increased to the first preset pressure value, the pressure valve assembly 20 is conducted along the liquid inlet direction of the clamping cylinders 11, the clamping cylinders 11 with the pressure valve assembly 20 start to move under the action of the oil pressure, when the detection part detects that the clamping cylinders 11 move to the standard state, all the clamping cylinders 11 in the hydraulic clamping assembly 10 can be ensured to move to the standard state, the hydraulic clamping system 100 of the invention only needs to detect the clamping cylinders 11 with the pressure valve assembly 20, the clamping oil cylinders 11 in the hydraulic clamping assembly 10 can be judged to move to the standard state, and the hydraulic clamping assembly is simple in structure and low in cost.
In the embodiment of the present invention, the clamping cylinder 11 includes a first cylinder 111, a first piston rod 112, a first rodless cavity pipeline 113, and a first rod cavity pipeline 114, where a portion of the first piston rod 112 is accommodated in the first cylinder 111 to divide the first cylinder 111 into a first chamber and a second chamber that are not communicated with each other, the first rodless cavity pipeline 113 is communicated with the first chamber, and the first rod cavity pipeline 114 is communicated with the second chamber;
the number of the pressure valve assemblies 20 is two, and the two pressure valve assemblies 20 are respectively connected in series to the first rod chamber pipeline 113 and the first rod chamber pipeline 114 of the clamping cylinder 11.
In this embodiment, oil enters the first chamber through the first rod-free chamber pipeline 113, the first piston rod 112 moves from the first chamber to the second chamber, and the oil in the second chamber flows out through the first rod-containing chamber pipeline 114 to drive the clamping member 202 of the vibrating apparatus to clamp the mold 400; the oil enters the second chamber through the first rod cavity pipeline 114, the first piston rod 112 moves from the second chamber to the first chamber, and the oil in the first chamber flows out through the first rodless cavity pipeline 113 to drive the clamping piece 202 in the vibrating device to loosen and release the die table 400.
The pressure valve assemblies 20 are arranged on the first rodless cavity pipeline 113 and the first rod cavity pipeline 114 of the same clamping cylinder 11, so that the hydraulic clamping system 100 can ensure that the clamping cylinder 11 with the pressure valve assemblies 20 lags behind the actions of other clamping cylinders 11 when the clamping piece 202 is driven to perform clamping actions and releasing actions. Therefore, the detection member only detects whether the clamp cylinder 11 having the pressure valve assembly 20 is moved to the standard state, and it can be ensured whether the other clamp cylinders 11 not provided with the pressure valve assembly 20 are moved to the standard state when performing both the clamping action and the unclamping action.
It is understood that the pressure valve assembly 20 is provided only in the first rod chamber line 113 of one clamp cylinder 11 or only in the first rod chamber line 114 of one clamp cylinder 11, and only the clamp cylinder 11 having the pressure valve assembly 20 can be detected, so that it can be determined whether the clamp cylinder 11 not provided with the pressure valve assembly 20 moves to the normal state when performing the clamping action or the unclamping action. This embodiment is also within the scope of the invention.
Further, first preset pressure value is for pressing from both sides tight preset pressure value or pine take off preset pressure value, pressure valve subassembly 20 is including parallelly connected check valve 21 and the pressure valve 22 that sets up, two pressure valve subassembly 20 check valve 21 all follows the play liquid direction of clamping cylinder 11 switches on, two pressure valve subassembly 20 pressure valve 22 all follows clamping cylinder 11's inlet fluid direction is greater than respectively at oil hydraulic pressure the tight preset pressure value with it switches on when presetting the pressure value to take off.
In this embodiment, the liquid outlet direction is a direction in which the oil flows out of the first cylinder 111 from the inside of the first cylinder 111, and the liquid inlet direction is a direction in which the oil flows out of the first cylinder 111 into the inside of the first cylinder 111.
The standard state includes two states: the structure and principle of the clamping state and the releasing state in a specific state are as follows.
When the clamping cylinder 11 drives the clamping member 202 to perform a clamping action, a standard state of the clamping cylinder 11 is a clamping state when the clamping member 202 clamps the die table 400, a first hydraulic value is a clamping pressure value for driving the clamping cylinder 11 to move to the clamping state, the first preset pressure value is a clamping preset pressure value, and the clamping preset pressure value is greater than the clamping pressure value. When oil enters the first cylinder 111 through the first rod chamber pipeline 113 and is discharged through the first rod chamber pipeline 114, the clamping cylinder 11 drives the clamping member 202 to perform a clamping action, and the clamping cylinder 11 without the pressure valve assembly 20 moves to a clamping state when the oil pressure rises to a clamping pressure value. When the oil pressure of the clamping oil cylinder 11 provided with the pressure valve assembly 20 rises to a clamping preset pressure value, the pressure valve 22 on the first rodless cavity pipeline 113 of the clamping oil cylinder 11 is conducted until the clamping oil cylinder 11 moves to a clamping state.
When the clamping cylinder 11 drives the clamping member 202 to perform the releasing action, the standard state of the clamping cylinder 11 is the releasing state when the clamping member 202 releases the die table 400, the first hydraulic value is the releasing pressure value for driving the clamping cylinder 11 to move to the releasing state, the first preset pressure value is the releasing preset pressure value, and the releasing preset pressure value is larger than the releasing pressure value. When oil enters the first cylinder 111 through the first rod chamber pipeline 114 and is discharged through the first rodless chamber pipeline 113, the clamping cylinder 11 drives the clamping member 202 to perform a releasing action, and the clamping cylinder 11 without the pressure valve assembly 20 moves to a releasing state when the oil pressure rises to a releasing pressure value. When the oil pressure of the clamping oil cylinder 11 provided with the pressure valve assembly 20 rises to a release preset pressure value, the pressure valve 22 on the first rodless cavity pipeline 113 of the clamping oil cylinder 11 is conducted until the clamping oil cylinder 11 moves to a release state.
The pressure valve 22 in the solution of the invention is a sequence valve.
In the embodiment shown in fig. 4, the pressure valve 22 is a sequence valve, and the opening pressure of the sequence valve is set to a first preset pressure value, and when the oil pressure in the hydraulic clamping assembly 10 reaches the first preset pressure value, the sequence valve allows oil to flow into the corresponding clamping cylinder 11, so that the clamping cylinder 11 is moved, and thus can be moved to the standard state.
It is understood that the pressure valve 22 may have other valve body structures, and the valve body structure can ensure that the other clamping cylinder 11 moves to the standard state before the clamping cylinder 11 with the valve body structure moves to the standard state.
In an embodiment of the present invention, the detecting element is a photoelectric sensor, and the photoelectric sensor is mounted on the clamping cylinder provided with the pressure valve assembly. In particular, the photosensor may be a laser ranging sensor or an infrared ranging sensor.
The photoelectric sensor comprises a sending end, a receiving end and a circuit for electrically connecting the sending end and the receiving end, wherein the sending end is arranged on a first cylinder body of the clamping oil cylinder, the receiving end is arranged on a first piston rod of the clamping oil cylinder, the receiving end receives a laser beam of the sending end, and a timer on the circuit measures the time from sending to receiving of the laser beam so as to calculate the distance between the sending end and the receiving end.
The transmitting end and the receiving end of the photoelectric sensor are both arranged on the first cylinder, the laser beam emitted by the generating end is reflected by the first piston rod and received by the receiving end, and a timer on the circuit measures the time from the transmitting to the receiving of the laser beam, so that the distance between the transmitting end and the receiving end is calculated.
The detection piece can be any structure of the existing distance measurement, and the distance change quantity of the first cylinder body and the first piston rod can be obtained by accurate measurement within the protection range of the invention.
Further, in the embodiment of the present invention, the clamping member 202 includes a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion are respectively fixed to the first cylinder 111 and the first piston rod 112 of the clamping cylinder, the first piston rod 112 moves relative to the first cylinder 111 to enable the first clamping portion to approach the second clamping portion, so as to clamp the die table; or away from the second clamping part, and loosening the die table. In an embodiment of the invention, the detecting member is mounted on the clamping member and detects a distance between the first clamping portion and the second clamping portion.
In an embodiment of the present invention, the hydraulic clamping system 100 further includes:
the hydraulic lifting assembly 30 comprises a plurality of lifting oil cylinders 31, and the plurality of lifting oil cylinders 31 are arranged in parallel;
the hydraulic clamping assembly 10 and the hydraulic lifting assembly 30 are connected in parallel.
In this embodiment, the plurality of lift cylinders 31 can perform the ascending and descending operations of the die table 400 on the vibrating apparatus.
In an embodiment of the present invention, the hydraulic clamping system 100 includes:
an oil supply line 60;
an oil return line 70; and
a first direction valve 40 and a second direction valve 50, wherein the hydraulic clamping assembly 10 is connected with the oil supply pipeline 60 and the oil return pipeline 70 through the first direction valve 40; the hydraulic lifting assembly 30 is connected with the oil supply pipeline 60 and the oil return pipeline 70 through the second direction changing valve 50.
The hydraulic clamping system 100 further comprises an oil tank 90, the oil supply line 60 comprises an oil supply pipe 61 and a pump body 62 connected in series with the oil supply pipe 61, the oil supply pipe 61 is communicated with the oil tank 90 and the first reversing valve 40 and communicated with the oil tank 90 and the second reversing valve 50, and the pump body 62 pumps oil in the oil tank 90 to the hydraulic clamping assembly 10 through the first reversing valve 40 and to the hydraulic lifting assembly 30 through the second reversing valve 50.
It is understood that the hydraulic clamping system 100 of the embodiment of the present invention may also supply oil to the hydraulic clamping assembly 10 and the hydraulic lifting assembly 30 respectively by providing two oil supply lines 60. Are all within the protection scope of the technical scheme of the invention.
The hydraulic clamping system 100 further includes a controller (not shown) electrically connected to the first direction valve 40 and the second direction valve 50, and the controller controls the first direction valve 40 and the second direction valve 50 to be switched to supply oil to the hydraulic clamping assembly 10 or supply oil to the hydraulic lifting assembly 30. It is understood that the switching of the first direction valve 40 and the second direction valve 50 may also be accomplished manually.
The hydraulic clamping assembly 10 and the hydraulic lifting assembly 30 are connected in parallel. The specific pipeline connection mode is shown in fig. 4: the hydraulic clamping assembly 10 further includes a first connection pipe 115 and a second connection pipe 116, one end of the first connection pipe 115 is connected to one end of the plurality of first rod chamber pipes 113 facing away from the first cylinder 111, and the other end of the first connection pipe 115 is connected to the first direction changing valve 40; one end of the second connection pipe 116 is connected to one end of the plurality of first rod chamber pipes 114 facing away from the first cylinder 111, and the other end of the second connection pipe 116 is connected to the first direction valve 40. Oil enters the first chamber through a plurality of first rodless chamber pipelines 113 by a first connecting pipe 115, and oil in the second chamber flows out through a plurality of first rodless chamber pipelines 114 by a second connecting pipe 116; alternatively, the oil enters the second chamber through the first rod chamber pipes 114 from the second connecting pipe 116, and the oil in the first chamber flows out through the first connecting pipe 115 from the first rod chamber pipes 113.
The hydraulic lifting assembly 30 further includes a third connection pipe 315 and a fourth connection pipe 316, one end of the third connection pipe 315 is connected to one end of the plurality of second rodless cavity pipes 313 away from the second cylinder 311, and the other end of the third connection pipe 315 is connected to the second direction valve 50; one end of a fourth connection pipe 316 is connected to one end of the plurality of second rod chamber pipes 314 facing away from the second cylinder 311, and the other end of the fourth connection pipe 316 is connected to the second direction valve 50. Oil enters the third chamber through a plurality of second rodless chamber pipelines 313 by a third connecting pipe 315, and oil in the fourth chamber flows out through a plurality of second rodless chamber pipelines 314 by a fourth connecting pipe 316; alternatively, the oil enters the fourth chamber through the second connecting pipes 316 via the second connecting pipes 314, and the oil in the third chamber flows out through the second connecting pipes 315 via the second rodless chamber pipes 313.
Further, the first direction valve 40 includes a clamping position 41 and a releasing position 42;
referring to fig. 4, when the first direction valve 40 is at the clamping position 41, the oil supply line 60 is communicated with the first rodless cavity lines 113 of the plurality of clamping cylinders 11, and the oil return line 70 is communicated with the first rod cavity lines 114 of the plurality of clamping cylinders 11;
when the first direction valve 40 is in the release position 42, the oil supply line 60 communicates with the first rod chamber lines 114 of the plurality of hydraulic clamping assemblies 10, and the oil return line 70 communicates with the first rod chamber lines 113 of the plurality of hydraulic clamping assemblies 10.
The first direction valve 40 and the second direction valve 50 are preferably electromagnetic direction valves, and the controller controls the first direction valve 40 to switch between the clamping position 41 and the releasing position 42, so that the clamping cylinder 11 of the hydraulic clamping system 100 drives the clamping member 202 to perform a clamping action or a releasing action.
Further, the lift cylinder 31 includes a second cylinder 311, a second piston rod 312, a second rodless cavity pipeline 313 and a second rod cavity pipeline 314, the second piston rod 312 is partially accommodated in the second cylinder 311 to divide the second cylinder 311 into a third cavity and a fourth cavity which are not communicated with each other, the second rodless cavity pipeline 313 is communicated with the third cavity, and the second rod cavity pipeline 314 is communicated with the fourth cavity;
the second direction valve 50 comprises an ascending position 51 and a descending position 52;
when the second direction valve 50 is located at the ascending position 51, the oil supply pipeline 60 is communicated with the second rodless cavity pipelines 313 of the plurality of lift cylinders 31, and the oil return pipeline 70 is communicated with the second rod cavity pipelines 314 of the plurality of lift cylinders 31;
when the second direction valve 50 is located at the lowering position 52, the oil supply pipeline 60 is communicated with the second rod cavity pipelines 314 of the plurality of lift cylinders 31, and the oil return pipeline 70 is communicated with the second rodless cavity pipelines 313 of the plurality of lift cylinders 31.
Oil enters the third chamber through the second rodless chamber pipeline 313, the second piston rod 312 moves from the third chamber to the fourth chamber, and the oil in the fourth chamber flows out through the second rod chamber pipeline 314 to drive the die table 400 to ascend; the oil enters the fourth chamber through the second rod chamber pipeline 314, the second piston rod 312 moves from the fourth chamber to the third chamber, and the oil in the third chamber flows out through the second rodless chamber pipeline 313 to drive the die table 400 to descend.
The controller controls the second direction valve 50 to switch between the ascending position 51 and the descending position 52, so that the lift cylinder 31 of the hydraulic clamping system 100 performs the ascending operation or the descending operation on the mold 400.
In the embodiment of the present invention, the first direction valve 40 further has a first stop position 43, the second direction valve 50 further has a second stop position 53, when the first direction valve 40 is located at the first stop position 43, the oil supply line 60 and the first rodless chamber lines 113 of the plurality of clamping cylinders 11 are blocked, and the oil return line 70 is communicated with the first rodless chamber lines 114 of the plurality of clamping cylinders 11. When the second direction valve 50 is at the second cut-off position 53, the oil supply line 60 and the second rodless chamber lines 313 of the plurality of lift cylinders 31 are cut off, and the oil return line 70 and the second rod chamber lines 314 of the plurality of lift cylinders 31 are communicated.
Further, in the embodiment of the present invention, the hydraulic clamping system 100 further includes an overflow valve 80, the overflow valve 80 is connected in series between the oil supply line 60 and the oil return line 70 and is located upstream of the first direction valve 40 and the second direction valve 50, the overflow valve 80 has a second preset pressure value, and the second preset pressure value is greater than the first preset pressure value.
The overflow valve 80 can ensure the highest oil pressure in the hydraulic clamping system 100, when the oil pressure in the hydraulic clamping system 100 is greater than the second preset value, the overflow valve 80 is opened, the oil in the oil supply pipeline 60 flows to the oil return pipeline 70 through the overflow valve 80, so that the oil pressure in the hydraulic clamping system 100 is not greater than the second preset pressure value, the condition that components in the hydraulic clamping system 100 are damaged or leaked due to overhigh oil pressure is ensured, and the high hydraulic clamping system 100 is safe and reliable to use.
With reference to fig. 1 and fig. 2, the present invention further provides a vibrating apparatus, which includes a vibrating frame 201, wherein the vibrating frame 201 is provided with a plurality of clamping members 202 for clamping or releasing a die table 400, the vibrating apparatus further includes a hydraulic clamping system 100, the specific structure of the hydraulic clamping system 100 refers to the above embodiments, and since the vibrating apparatus adopts all technical solutions of all the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are provided, and details are not repeated herein. Each clamping cylinder 11 is correspondingly connected with one clamping piece 202, and drives the clamping piece 202 to perform clamping action or releasing action.
Specifically, the clamping member 202 includes a fixed portion fixed to the vibrating frame 201 and a movable portion moving relative to the fixed portion to clamp or release the die table 400, and the movable portion and the fixed portion may be connected in a rotating manner or in a sliding manner. The first piston rod 112 or the first cylinder 111 of the clamping cylinder 11 drives the movable part to move relative to the fixed part.
Further, referring to fig. 1 and 2, the vibrating apparatus includes a plurality of vibrating devices 200 and a plurality of lifting devices 300, the vibrating devices 200 include a vibrating frame 201, and a clamp 202 and a vibrating member 203 mounted on the vibrating frame 201, the vibrating frame 201 is supported on the ground, and the vibrating member 203 is embodied as a vibration motor. Referring to fig. 1 and 3, the lifting apparatus 300 includes a base 301, the base 301 supporting the ground, and a lift cylinder 31 in the hydraulic clamping system 100 connected to the base 301, the lift cylinder 31 performing a lifting motion or a lowering motion with respect to the table 400. When the production line transports the mould table 400 to the vibrating device, the lifting cylinder 31 performs a descending action to descend the mould table 400 onto the vibrating frame 201, the clamping cylinder 11 in the hydraulic clamping system 100 moves to a clamping state to drive the clamping piece 202 to clamp the mould table 400, the vibrating piece 203 acts to vibrate the mould table 400, so that concrete in the mould table 400 is uniformly vibrated, and internal air bubbles are discharged. After the vibrating member 203 is operated, the clamping cylinder 11 in the hydraulic clamping system 100 is moved to the releasing state to release the mold table 400 by driving the clamping member 202, and then the lifting cylinder 31 of the lifting device 300 performs a lifting operation to lift the mold table 400 to a height corresponding to the height of the transportation device on the production line and transport the mold table 400 to the next station.
Referring to fig. 3, the lifting device 300 further includes rollers 302, the mold table 400 is transported to the vibrating device by a transportation device on the production line and is supported by the rollers 302 of the plurality of lifting devices 300, the lifting cylinder 31 drives the rollers 302 to lift, so as to lift the mold table 400, and after the lifting devices 300 lift the mold table 400, the rollers 302 convey the mold table 400 to the next station.
The invention also provides a detection method of the hydraulic clamping system 100, and provides the hydraulic clamping system 100;
the hydraulic clamping system 100 supplies oil to the plurality of clamping cylinders 11 at a first hydraulic pressure value, and then supplies oil to the clamping cylinders 11 provided with the pressure valve assembly 20 at a first preset pressure value;
the detection member detects the clamping cylinders 11 provided with the pressure valve assembly 20, and when the clamping cylinders 11 move to the standard state, it is determined that all the clamping cylinders 11 move to the standard state.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. A hydraulic clamping system, comprising:
the hydraulic clamping assembly comprises a plurality of clamping oil cylinders which are arranged in parallel, and the plurality of clamping oil cylinders can move to a standard state under the oil pressure of a first hydraulic value;
the pressure valve assembly is connected in series with the clamping oil cylinder; the pressure valve assembly is conducted along the liquid inlet direction of the clamping oil cylinder by oil liquid pressure of a first preset pressure value; the first preset pressure value is greater than the first hydraulic value; and
the detection piece detects whether the clamping oil cylinder provided with the pressure valve assembly moves to a standard state or not.
2. The hydraulic clamping system of claim 1, wherein the clamping cylinder includes a first cylinder, a first piston rod and a first rodless cavity conduit and a first rod cavity conduit, the first piston rod portion being received within the first cylinder to divide the first cylinder into a first chamber and a second chamber that are not in communication with each other, the first rodless cavity conduit communicating with the first chamber and the first rod cavity conduit communicating with the second chamber;
the two pressure valve assemblies are respectively connected in series with the first rodless cavity pipeline and the first rod cavity pipeline of the clamping oil cylinder.
3. The hydraulic clamping system according to claim 2, wherein the first preset pressure value is a clamping preset pressure value or a releasing preset pressure value, the pressure valve assembly includes a check valve and a pressure valve which are arranged in parallel, the check valve of each of the two pressure valve assemblies is conducted along a liquid outlet direction of the clamping cylinder, and the pressure valve of each of the two pressure valve assemblies is conducted along a liquid inlet direction of the clamping cylinder when the oil pressure is greater than the clamping preset pressure value or the releasing preset pressure value.
4. The hydraulic clamping system of claim 3 wherein the pressure valve is a sequence valve.
5. The hydraulic clamping system of claim 1, wherein said sensing member is a photoelectric sensor mounted to said clamping cylinder with a pressure valve assembly.
6. The hydraulic clamping system of any one of claims 2 to 5, further comprising:
the hydraulic lifting assembly comprises a plurality of lifting oil cylinders which are arranged in parallel;
the hydraulic clamping assembly and the hydraulic lifting assembly are connected in parallel.
7. The hydraulic clamping system of claim 6, wherein the hydraulic clamping system comprises:
an oil supply line;
an oil return line; and
the hydraulic clamping assembly is connected with the oil supply pipeline and the oil return pipeline through the first reversing valve; the hydraulic lifting assembly is connected with the oil supply pipeline and the oil return pipeline through the second reversing valve.
8. The hydraulic clamping system of claim 7 wherein said first reversing valve includes a clamping position and a release position;
when the first reversing valve is positioned at the clamping position, the oil supply pipeline is communicated with the first rodless cavity pipelines of the plurality of clamping oil cylinders, and the oil return pipeline is communicated with the first rod cavity pipelines of the plurality of clamping oil cylinders;
when the first reversing valve is located at the release position, the oil supply pipeline is communicated with the first rod cavity pipelines of the hydraulic clamping assemblies, and the oil return pipeline is communicated with the first rod cavity pipelines of the hydraulic clamping assemblies.
9. The hydraulic clamping system of claim 7, wherein said lift cylinder includes a second cylinder, a second piston rod, a second rodless cavity conduit, and a second rod cavity conduit, said second piston rod portion being received in said second cylinder to divide said second cylinder into a third chamber and a fourth chamber that are not in communication with each other, said second rodless cavity conduit communicating with said third chamber, said second rod cavity conduit communicating with said fourth chamber;
the second reversing valve comprises an ascending position and a descending position;
when the second reversing valve is in the ascending position, the oil supply pipeline is communicated with the second rodless cavity pipelines of the plurality of lifting oil cylinders, and the oil return pipeline is communicated with the second rod cavity pipelines of the plurality of lifting oil cylinders;
when the second reversing valve is located at the descending position, the oil supply pipeline is communicated with the second rod cavity pipelines of the plurality of lifting oil cylinders, and the oil return pipeline is communicated with the second rodless cavity pipelines of the plurality of lifting oil cylinders.
10. The hydraulic clamping system of claim 7, further comprising an overflow valve connected in series between said supply line and said return line and upstream of said first reversing valve and said second reversing valve, said overflow valve having a second predetermined pressure value, said second predetermined pressure value being greater than said first predetermined pressure value.
11. A vibrating apparatus, comprising a vibrating frame, wherein the vibrating frame is provided with a plurality of clamping members for clamping or releasing a die table, the vibrating apparatus further comprises a hydraulic clamping system according to any one of claims 1 to 10, and each clamping cylinder is correspondingly connected to one of the clamping members and drives the clamping member to perform a clamping action or a releasing action.
12. A method for testing a hydraulic clamping system,
providing a hydraulic clamping system as claimed in any one of claims 1 to 10;
after the hydraulic clamping system supplies oil to the plurality of clamping oil cylinders at the oil hydraulic pressure of a first hydraulic value, the hydraulic clamping system supplies oil to the clamping oil cylinders provided with the pressure valve assemblies at a first preset pressure value; the detection piece detects the clamping oil cylinders provided with the pressure valve assemblies, and when the clamping oil cylinders move to a standard state, all the clamping oil cylinders are judged to move to the standard state.
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| CN201910095052.4A CN109751966B (en) | 2019-01-29 | 2019-01-29 | Hydraulic clamping system, vibrating device and detection method of hydraulic clamping system |
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| CN201910095052.4A CN109751966B (en) | 2019-01-29 | 2019-01-29 | Hydraulic clamping system, vibrating device and detection method of hydraulic clamping system |
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| CN109751966B true CN109751966B (en) | 2021-09-10 |
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| JP2022083188A (en) * | 2020-11-24 | 2022-06-03 | 株式会社コスメック | Clamp system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61241039A (en) * | 1985-04-16 | 1986-10-27 | Nippei Toyama Corp | Confirming device for clamp |
| CN201338403Y (en) * | 2009-01-19 | 2009-11-04 | 东风汽车股份有限公司 | High-pressure quick electric control hydraulic control device for movable workbench of press |
| CN102011765A (en) * | 2010-12-24 | 2011-04-13 | 厦门大学 | Hydraulic cylinder with laser-measured piston rod stroke |
| CN102182187A (en) * | 2011-04-01 | 2011-09-14 | 常州市鹏睿机械有限公司 | Pile clamping box for accurate positioning |
| CN102619805B (en) * | 2012-04-27 | 2014-05-21 | 郑州宇通重工有限公司 | Hydraulic cylinder suitable for controlling plurality of hydraulic cylinders to extend sequentially |
| CN203146458U (en) * | 2013-02-22 | 2013-08-21 | 中国一拖集团有限公司 | Common hydraulic loop of hydraulic clamp single and double acting cylinder |
| CN103182728A (en) * | 2013-03-21 | 2013-07-03 | 长沙远大住宅工业有限公司 | Hydraulic vibration table |
| CN203548437U (en) * | 2013-10-23 | 2014-04-16 | 浙江工商大学 | High-precision constant-power output air floating device |
| CN203877758U (en) * | 2014-04-24 | 2014-10-15 | 常州瑞阳液压成套设备有限公司 | Pushing system of rail clamping device |
| CN108999193B (en) * | 2018-07-13 | 2020-05-29 | 三峡大学 | Concrete dam pouring bin transverse joint face concrete intelligent vibrating device |
| CN108730246B (en) * | 2018-08-16 | 2020-05-22 | 广东联城住工装备信息科技有限公司 | Hydraulic control system of material distributing machine and material distributing machine |
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