CN207204961U - A kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion - Google Patents
A kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion Download PDFInfo
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- CN207204961U CN207204961U CN201720998948.XU CN201720998948U CN207204961U CN 207204961 U CN207204961 U CN 207204961U CN 201720998948 U CN201720998948 U CN 201720998948U CN 207204961 U CN207204961 U CN 207204961U
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- hydraulic
- die cushion
- driving cylinder
- hydraulic die
- displacement
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Abstract
The utility model discloses a kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion, it is related to machining manufacturing equipment field, including hydraulic die cushion, workbench and the driving cylinder for driving the hydraulic die cushion lifting, the driving cylinder includes main driving cylinder and secondary driving cylinder, the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion also includes proportional dump valve system, feedback circuit, first displacement transducer and second displacement sensor, the proportional dump valve system carries out independent pressure regulation to the main driving cylinder and secondary driving cylinder, the feedback circuit controls the secondary driving cylinder according to the detection signal of first displacement transducer and second displacement sensor, to control hydraulic die cushion both sides displacement.The utility model can realize the independent ejection of hydraulic die cushion and retract action, realize that hydraulic die cushion multi-cylinder tensile force distinguishes adjustable and hydraulic die cushion levelling function again.
Description
【Technical field】
It the utility model is related to machining manufacturing equipment field, and in particular to a kind of more work(of multiple hydraulic transfer press hydraulic die cushion
Can composite hydraulic system.
【Background technology】
In modern industrial production, multiple hydraulic transfer press unitary mould or Split mold stretching autofrettage are suitable for various
The plate parts of material, using the ductility of metal, it is processed into variously-shaped.But in the process of some parts,
Its deformation force is asymmetric during stretcher strain, easily forms unbalance loading torque, causes the inclined sanction of part, influences the processing essence of product
Degree.
【Utility model content】
To solve foregoing problems, the utility model provides a kind of multi-functional compound hydraulic pressure system of multiple hydraulic transfer press hydraulic die cushion
System, during carrying out drawing process to part when with unitary mould or Split mold, realize multi-cylinder tensile force respectively it is adjustable with
And the function of hydraulic die cushion leveling, the balance of part is kept, the inclined sanction avoided produces.
In order to achieve the above object, the utility model adopts the following technical scheme that：
A kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion, including hydraulic die cushion, the work for carrying mould
Make platform and the driving cylinder for driving the hydraulic die cushion lifting, the driving cylinder includes main driving cylinder and positioned at the main driving cylinder
The secondary driving cylinder of both sides, the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion also include proportional dump valve system,
Feedback circuit and the first displacement transducer and second displacement sensor being connected respectively with the feedback circuit, the main driving cylinder
The proportional dump valve system is connected respectively with secondary driving cylinder, to carry out independent pressure regulation to the main driving cylinder and secondary driving cylinder,
The feedback circuit controls the secondary driving cylinder according to the detection signal of first displacement transducer and second displacement sensor,
To control the displacement of the hydraulic die cushion both sides.
Further, two secondary driving cylinders are symmetrical on the main driving cylinder.
Further, the centre-to-centre spacing of two secondary driving cylinders is 2/3rds of the length of the hydraulic die cushion.
Optionally, institute's displacement sensors include test section, and the displacement is the unilateral in vertical side of the hydraulic die cushion
To displacement, the test section is installed on the both sides of the hydraulic die cushion, to detect the displacement.
Further, hydraulic die cushion keep level in lifting process, or the hydraulic die cushion, in lifting process, it two
The difference of the displacement of side is less than or equal to 0.52mm.
Optionally, push rod is provided between the hydraulic die cushion and the mould, the workbench is provided with pilot hole, the push rod
Slided in the pilot hole, the hydraulic die cushion ejects the mould by the push rod.
Further, the hydraulic die cushion includes pushing plate, and the pushing plate is provided with some promotion platforms, the promotion platform
Between be provided with gap, the promotion platform promotes the push rod.
Further, the promotion platform is provided with some buffering spacers, the quantity of the buffering spacer and position and institute
State push rod one-to-one corresponding.
Optionally, one end of the push rod and the contacting dies is provided with flange, and the flange extends the push rod
Outer peripheral face, the pilot hole are counterbore, and the step of the flange and the counterbore coordinates to prevent the push rod from skidding off the work
Make platform.
Further, in a contracted state, the flange contacts the driving cylinder with the step, and the push rod does not set convex
Spacing is provided between one end of edge and the hydraulic die cushion.
After adopting the above technical scheme, the utility model has the following advantages that：
A kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion, including hydraulic die cushion, the work for carrying mould
Make platform and the driving cylinder for driving the hydraulic die cushion lifting, the driving cylinder includes main driving cylinder and positioned at the main driving cylinder
The secondary driving cylinder of both sides, the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion also include proportional dump valve system,
Feedback circuit and the first displacement transducer and second displacement sensor being connected respectively with the feedback circuit, the main driving cylinder
The proportional dump valve system is connected respectively with secondary driving cylinder, to carry out independent pressure regulation to the main driving cylinder and secondary driving cylinder,
The feedback circuit controls the secondary driving cylinder according to the detection signal of first displacement transducer and second displacement sensor,
To control hydraulic die cushion both sides displacement:Hydraulic system provided by the utility model, applies to multiple hydraulic transfer press
A kind of multi-functional composite hydraulic system, the independent ejection of hydraulic die cushion can be realized by main driving cylinder and retract action, in multistation
During carrying out drawing process to part when hydraulic press is with unitary mould or Split mold, passing ratio pressure regulation valve system can be realized
Hydraulic die cushion multi-cylinder tensile force distinguishes adjustable function.Meanwhile although the offset of hydraulic die cushion exceeds allowed band, relative to
Whole hydraulic die cushion, human eye are still what can not be observed, therefore detect the offset of hydraulic die cushion by two displacement transducers,
When the offset difference of the hydraulic die cushion both sides detected, feedback circuit controls secondary driving cylinder motion, hydraulic die cushion is kept balance,
The levelling function of hydraulic die cushion is realized, so as to avoid the inclined sanction of part, ensures machining accuracy.
Two secondary driving cylinders are symmetrical on the main driving cylinder：Two secondary driving cylinders are symmetrical, are easy to position
The setting of displacement sensor.When two secondary driving cylinder asymmetric distributions, it is necessary to according to two secondary driving cylinders for main driving cylinder
After different distance is calculated, the preset difference value for the displacement that two displacement transducers of setting detect, when two displacement sensings
The difference for the displacement that device detects during preset difference value difference with being adjusted, although balance can also be adjusted, for installation
Debugging adds workload.And when two secondary driving cylinders are symmetrical, as long as the displacement of two displacement transducers detections of setting
Measure identical, reduce the difficulty of installation and debugging, decrease the workload during installation and debugging.
Push rod is provided between the hydraulic die cushion and the mould, the workbench is provided with pilot hole, and the push rod is described
Slided in pilot hole, the hydraulic die cushion ejects the mould by the push rod：Mould is set on the table, and hydraulic die cushion exists
Under workbench, therefore middle setting push rod, by push rod, realize operation of the hydraulic die cushion to mould.
The hydraulic die cushion includes pushing plate, and the pushing plate is provided with some promotion platforms, seam is provided between the promotion platform
Gap, the promotion platform promote the push rod：In the inner side of workbench, to increase the intensity of workbench, some reinforcements can be set,
If directly promote push rod, push pedal can not continue stroke after reaching the position of reinforcement using push pedal.It is and some by setting
Promote platform and gap is set between platform is promoted, after the position of reinforcement is reached, reinforcement insertion promotes the seam between platform
Gap, stroke can be continued, complete predetermined action.
The promotion platform is provided with some buffering spacers, a pair of the quantity of the buffering spacer and position and the push rod 1
Should：It is rigid contact because push rod and promotion platform promote the face of push rod, therefore mechanical wear can be produced.Mechanical wear is accumulated, and
Displacement transducer is not reset, then levelling effect can be made to have a greatly reduced quality.Meanwhile promote platform abrasion to polish again and promote platform
Or hydraulic die cushion is changed, also cause maintenance cost lifting, therefore buffering spacer is set, avoid promoting platform abrasion, inspect periodically simultaneously
Buffering spacer, changed in time when finding to wear, reduce the workload of maintenance and the expense of maintenance.
In a contracted state, the flange contacts the driving cylinder with the step, and the push rod does not set one end of flange
Spacing is provided between the hydraulic die cushion：Ensure main driving cylinder and secondary driving cylinder in a contracted state, under all push rods whole
Fall on below table surface, ensure that mould is laid flat.
These features and advantage of the present utility model will be carried out in detail in following embodiment and accompanying drawing
Exposure.The optimal embodiment of the utility model or means will carry out detailed performance with reference to accompanying drawing, but be not new to this practicality
The limitation of type technical scheme.In addition, in each of the lower in text and accompanying drawing these features, key element and the component that occur be have it is multiple,
And different symbols or numeral are marked in order to represent convenient, but represents same or similar construction or the part of function.
【Brief description of the drawings】
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the schematic diagram of the utility model embodiment；
Fig. 2 is the front view of hydraulic die cushion in the utility model embodiment；
Fig. 3 is the top view of hydraulic die cushion in the utility model embodiment；
Fig. 4 is the mechanical construction drawing of the utility model embodiment.
In accompanying drawing：
1- workbench, the main driving cylinders of 2-, 31- left secondary driving cylinders, the right secondary driving cylinders of 32-, 4- hydraulic die cushions, 41- pushing plates,
42- promotion platforms, 43- mounting rails, 44- installing plates, 45- screwed holes, 46- buffering spacers, 5- moulds, 61- left dislocation sensors,
The right displacement transducers of 62-, 7- push rods.
【Embodiment】
The technical scheme of the utility model embodiment is explained with reference to the accompanying drawing of the utility model embodiment and
Illustrate, but following embodiments are only preferred embodiment of the present utility model, and it is not all.Based on the embodiment in embodiment,
Those skilled in the art obtain other embodiment on the premise of creative work is not made, and belong to of the present utility model
Protection domain.
" one embodiment " or " example " or " example " quoted in this manual means that itself is described in conjunction with the embodiments
Special characteristic, structure or characteristic can be included at least one embodiment disclosed in this patent.Phrase is " in one embodiment
In " appearance of each position in the description is not necessarily all referring to same embodiment.
In the description of the utility model embodiment, term " on ", " under ", "left", "right", " transverse direction ", " longitudinal direction ",
The orientation or position relationship of the instructions such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the utility model rather than require the utility model must with specific azimuth configuration and operation, therefore it is not intended that to this
The limitation of utility model.
Embodiment：
The present embodiment provides a kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion.
As shown in Figures 1 to 4, a kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion, including feedback circuit
(not marked in figure), hydraulic die cushion 4, the workbench 1 for carrying mould 5 and the driving cylinder for driving hydraulic die cushion 4 to lift, driving
Cylinder includes main driving cylinder 2, the left secondary driving cylinder 31 positioned at the main left side of driving cylinder 2 and the right secondary driving positioned at the main right side of driving cylinder 2
Cylinder 32, the cavity of resorption of left secondary driving cylinder 31 are provided with a set of proportional dump valve system 311, realize to the 31 independent pressure regulation of left secondary driving cylinder, right
The secondary cavity of resorption of driving cylinder 32 is provided with a set of proportional dump valve system 322, realizes to right secondary 32 independent pressure regulation of driving cylinder.Hydraulic press hydraulic pressure
Pad leveling system also includes the left dislocation sensor 61 and right displacement transducer 62 being connected respectively with feedback circuit, left dislocation sensing
Device 61 and right displacement transducer 62 detect the unilateral displacement of the both sides of hydraulic die cushion 4 respectively, and feedback circuit is according to left dislocation sensor
The difference of the displacement detected by displacement and right displacement transducer 62 detected by 61, control left secondary driving cylinder 31 or right
Secondary driving cylinder 32, to control the displacement of the both sides of hydraulic die cushion 4.Although the displacement difference of the both sides of hydraulic die cushion 4 exceeds allowed band,
But for whole hydraulic die cushion 4, human eye is still what can not be observed, therefore detected by two displacement transducers
The displacement of hydraulic die cushion 4, when the displacement difference of the both sides of hydraulic die cushion 4 detected, feedback circuit control left secondary driving cylinder 31
Or right secondary driving cylinder 32 moves, hydraulic die cushion 4 is kept balance, so as to avoid the inclined sanction of part, ensure machining accuracy.
Left secondary driving cylinder 31 and right secondary driving cylinder 32 are symmetrical on main driving cylinder 2, as long as two displacement sensings of setting
The displacement of device detection is identical, reduces the difficulty of installation and debugging, decreases the workload during installation and debugging.Two
The centre-to-centre spacing of individual secondary driving cylinder is 2/3rds of the length of hydraulic die cushion 4.Left dislocation sensor 61 and right displacement transducer 62 wrap
Test section (not marked in figure) is included, unilateral displacement is the unilateral displacement in vertical direction of hydraulic die cushion 4, and test section is installed on liquid
The both sides of pressure pad 4, to detect unilateral displacement.The keep level in lifting process of hydraulic die cushion 4, or hydraulic die cushion 4 is in lifting process
In, the difference of the unilateral displacement of its both sides is less than or equal to 0.52mm.Push rod 7, workbench 1 are provided between hydraulic die cushion 4 and mould 5
Provided with pilot hole, push rod 7 slides in pilot hole, and hydraulic die cushion 4 passes through the ejection die 5 of push rod 7.
In the present embodiment, main driving cylinder 2 promotes hydraulic die cushion 4, and mould 5 is pushed to specified by hydraulic die cushion 4 by push rod 7
Station.After mould 5 reaches specified station, left secondary driving cylinder 31 operates mould 5 by push rod 7 and part to be processed is stretched
Operation, during being stretched, hydraulic die cushion 4 is passively descending, because the centre of hydraulic die cushion 4 and right-hand component are hanging, therefore liquid
Pressure pad 4 or so produces different displacements, so as to be reacted to the left dislocation sensor 61 at the both ends of hydraulic die cushion 4 and right displacement transducer
62 numerical value.When the two numerical value produces certain deviation, control valve group controls right secondary driving cylinder 32, right secondary driving cylinder 32 is also drawn
Hydrodynamic pressure pad 4, until left dislocation sensor 61 is consistent with the right numerical value of displacement transducer 62, so as to reach balance, avoid part
Inclined sanction during processing produces.
It is pointed out that being set according to different occasions and different stations, can also be entered by right secondary driving cylinder 32
Row stretched operation, left secondary driving cylinder 31 carry out correction Levelling operation.
Hydraulic die cushion 4 includes pushing plate 41, and pushing plate 41 is provided with some promotion platforms 42, gap is provided between promotion platform 42,
In the inner side of workbench 1, to increase the intensity of workbench, some reinforcements can be set, by set some promotion platforms 42 and
Gap is set between platform 42 is promoted, after the position of reinforcement is reached, reinforcement insertion promotes the gap between platform 42, can be with
Continue stroke, complete predetermined action.Promote cross weld in platform 42 to have floor, the intensity of platform 42 is promoted with increase, is pushed away
Dynamic platform 42 is connected with pushing plate 41 by the way of welding, promotes push rod 7.Promote and be provided between the promotion face of platform 42 and push rod 7
Some buffering spacers 46, the quantity of buffering spacer 46 and position correspond with push rod 7.Due to push rod 7 and platform 42 is promoted to promote
The face of push rod 7 is rigid contact, therefore can produce mechanical wear.Mechanical wear is accumulated, without resetting displacement transducer, then
Levelling effect can be made to have a greatly reduced quality.Meanwhile promote the abrasion of platform 42 it can only be polished or be changed again hydraulic die cushion 4, also cause dimension
Shield expense is lifted, therefore sets buffering spacer 46, avoids promoting platform 42 to wear, while inspects periodically buffering spacer 42, works as discovery
Abrasion is changed in time, reduces the workload of maintenance and the expense of maintenance.On the promotion face for promoting platform 42, each buffering spacer
46 installation site is equipped with screwed hole 45, and the promotion face of platform 42 is promoted for buffering spacer 46 to be fixed on, prevents from promoting
The position of buffering spacer 46 in motion process of platform 42 shifts and loses the protective effect to promoting platform 42.
One end that push rod 7 contacts with mould 5 is provided with flange, and flange extends the outer peripheral face of push rod, and pilot hole is counterbore, convex
The step of edge and counterbore coordinates to prevent push rod 7 from skidding off workbench 1.In a contracted state, flange contacts driving cylinder with step, top
Bar 7, which is not set, is provided with spacing between one end of flange and hydraulic die cushion 4, ensure main driving cylinder 2, left secondary driving cylinder 31 and right secondary driving cylinder
32 in a contracted state, is fallen under all push rods 7 whole below the table top of workbench 1, ensures that mould is laid flat.
Hydraulic die cushion 4 also includes mounting rail 43 and installing plate 44, and the one end of mounting rail 43 is solid in a welding manner with pushing plate 42
Fixed connection, the other end are fixedly connected in a welding manner with installing plate 44, and the movable end of connecting plate 43 and driving cylinder passes through bolt
It is detachably connected.
More than, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited thereto,
It is familiar with the those skilled in the art and should be understood that the utility model includes but is not limited in accompanying drawing and above embodiment
The content of description.Any modification without departing from function and structure principle of the present utility model is intended to be included in the model of claims
In enclosing.
Claims (10)
1. a kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion, including hydraulic die cushion, the work for carrying mould
Platform and the driving cylinder for driving the hydraulic die cushion lifting, it is characterised in that：The driving cylinder includes main driving cylinder and positioned at institute
The secondary driving cylinder of main driving cylinder both sides is stated, the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion also includes ratio and adjusted
Pressure valve system, feedback circuit and the first displacement transducer and second displacement sensor being connected respectively with the feedback circuit, institute
State main driving cylinder and secondary driving cylinder connects the proportional dump valve system respectively, with to the main driving cylinder and the progress of secondary driving cylinder
Independent pressure regulation, the feedback circuit is according to controlling the detection signal of first displacement transducer and second displacement sensor
Secondary driving cylinder, to control the displacement of the hydraulic die cushion both sides.
2. the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion according to claim 1, it is characterised in that：Two
The secondary driving cylinder is symmetrical on the main driving cylinder.
3. the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion according to claim 2, it is characterised in that：Two
The centre-to-centre spacing of the secondary driving cylinder is 2/3rds of the length of the hydraulic die cushion.
4. the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion according to claim 1, it is characterised in that：It is described
Displacement transducer includes test section, and the displacement is the one side of the hydraulic die cushion in the displacement of vertical direction, the detection
Portion is installed on the both sides of the hydraulic die cushion, to detect the displacement.
5. the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion according to claim 4, it is characterised in that：It is described
Hydraulic die cushion keep level in lifting process, or the hydraulic die cushion is in lifting process, the difference of the displacement of its both sides
Less than or equal to 0.52mm.
6. the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion according to claim 1, it is characterised in that：It is described
Push rod is provided between hydraulic die cushion and the mould, the workbench is provided with pilot hole, and the push rod slides in the pilot hole,
The hydraulic die cushion ejects the mould by the push rod.
7. the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion according to claim 6, it is characterised in that：It is described
Hydraulic die cushion includes pushing plate, and the pushing plate is provided with some promotion platforms, gap, the promotion platform are provided between the promotion platform
Promote the push rod.
8. the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion according to claim 7, it is characterised in that：It is described
Promote platform to be provided with some buffering spacers, the quantity of the buffering spacer and position to correspond with the push rod.
9. the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion according to claim 6, it is characterised in that：It is described
One end of push rod and the contacting dies is provided with flange, and the flange extends the outer peripheral face of the push rod, and the pilot hole is
Counterbore, the step of the flange and the counterbore coordinate to prevent the push rod from skidding off the workbench.
10. the multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion according to claim 9, it is characterised in that：Institute
State driving cylinder in a contracted state, the flange contacts with the step, and the push rod does not set one end of flange and the hydraulic pressure
Spacing is provided between pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720998948.XU CN207204961U (en) | 2017-08-10 | 2017-08-10 | A kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720998948.XU CN207204961U (en) | 2017-08-10 | 2017-08-10 | A kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion |
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| Publication Number | Publication Date |
|---|---|
| CN207204961U true CN207204961U (en) | 2018-04-10 |
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ID=61818762
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720998948.XU Active CN207204961U (en) | 2017-08-10 | 2017-08-10 | A kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion |
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| CN (1) | CN207204961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107442635A (en) * | 2017-08-10 | 2017-12-08 | 湖州机床厂有限公司 | A kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion |
-
2017
- 2017-08-10 CN CN201720998948.XU patent/CN207204961U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107442635A (en) * | 2017-08-10 | 2017-12-08 | 湖州机床厂有限公司 | A kind of multi-functional composite hydraulic system of multiple hydraulic transfer press hydraulic die cushion |
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