CN103752669B - The flanging system of plate blank material drawing and plate blank material drawing pressing method - Google Patents
The flanging system of plate blank material drawing and plate blank material drawing pressing method Download PDFInfo
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- CN103752669B CN103752669B CN201410018523.9A CN201410018523A CN103752669B CN 103752669 B CN103752669 B CN 103752669B CN 201410018523 A CN201410018523 A CN 201410018523A CN 103752669 B CN103752669 B CN 103752669B
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Abstract
The invention provides a kind of plate blank material drawing flanging system and plate blank material drawing pressing method, it is characterized in that, comprising: fuel reserve tank; The hydraulic pump current divider be connected with fuel reserve tank; Hydraulic press assembly, comprises the upper oil cavitie block lower oil cavitie block relative with upper oil cavitie block, the hydraulic oil between upper oil cavitie block and lower oil cavitie block is fed back to the return channel of fuel reserve tank; Upper hydraulic efficiency servo-valve group, is communicated with current divider and upper oil cavitie block will; Lower hydraulic efficiency servo-valve group, is communicated with current divider and lower oil cavitie block; And control unit, comprise the controller be connected with each hydraulic efficiency servo-valve with hydraulic pump respectively and the industrial computer be connected with controller, regulated the oil mass entering hydraulic press assembly by hydraulic control servo valve.The present invention can increase plate blank material drawing and forming limit depth, ensures surface of shaped parts no marking, improves surface quality.
Description
Technical field
The present invention relates to and a kind ofly plate blank material is carried out the plate blank material drawing pressing method of drawing and a kind of plate blank material drawing flanging system of plate blank material being carried out drawing.
Background technology
Along with the development of industrial technology, the drawing and forming part that increasing plate blank material needs the degree of depth large, as half spherical pieces, square box part etc., needs flanging plate blank material being carried out to a high request when carrying out drawing to plate blank material.Traditional flanging principle is all adopt solids directly to contact to the ledge zone of the plate blank material of institute's drawing to carry out flanging, this method defect is that the coefficient of friction between solids and plate blank material ledge zone is too large, even if take lubricant method can not obtain very little coefficient of friction, so that plate blank material can not obtain enough form depth, in addition, surface of shaped parts particularly ledge zone has cut, causes the non-constant of the surface quality of profiled member.Prior art also lacks the technical scheme overcome the above problems.
Summary of the invention
The present invention carries out to solve the problem, the object of the invention be to provide a kind of when drawing carried out to plate blank material by being formed as blank ledge zone in the upper and lower surface of blank ledge zone and providing the high pressure oil film of pressure-pad-force thus realize neat liquid sliding friction making a kind of plate blank material drawing flanging system that final molding part surface no marking quality is very high and plate blank material drawing pressing method.
The invention provides a kind of plate blank material drawing flanging system of when carrying out drawing to the drawing district of plate blank material, the ledge zone be connected with drawing district of this plate blank material being carried out to flanging, it is characterized in that, comprising: fuel reserve tank, store hydraulic oil; Current divider, exports hydraulic oil thus shunting respectively by the upper oil pipe group be made up of respectively multiple-tubing string and lower oil pipe group; Hydraulic pump, is arranged between current divider and fuel reserve tank, to the hydraulic oil pressurization of extracting out from fuel reserve tank; Hydraulic press assembly, comprises the upper oil cavitie block be connected with upper oil pipe group and is connected with lower oil pipe group and the lower oil cavitie block relative with upper oil cavitie block, the hydraulic oil between upper oil cavitie block and lower oil cavitie block is fed back to the return channel of fuel reserve tank; Upper hydraulic efficiency servo-valve group, comprises at least one hydraulic efficiency servo-valve, and coupling is arranged on and is connected in the every root oil pipe of oil pipe group; Lower hydraulic efficiency servo-valve group, comprises at least one hydraulic efficiency servo-valve, and coupling is arranged on and is connected in every root oil pipe of lower oil pipe group; And control unit, comprise the controller be connected with hydraulic efficiency servo-valves all in hydraulic efficiency servo-valves all in hydraulic pump, described upper hydraulic efficiency servo-valve group and described lower hydraulic efficiency servo-valve group respectively and the industrial computer be connected with described controller, by controlling the hydraulic efficiency servo-valve in described upper hydraulic efficiency servo-valve group and the hydraulic efficiency servo-valve in described lower hydraulic efficiency servo-valve group regulates the oil mass entering described hydraulic press assembly.
In plate blank material drawing flanging system provided by the invention, can also have such feature: wherein, hydraulic press assembly also comprises for sealing the sealing ring of lower oil cavitie block and return channel and being fixedly connected with the hold-down support of lower oil cavitie block.
In plate blank material drawing flanging system provided by the invention, can also have such feature: wherein, upper oil cavitie block and lower oil cavitie block are respectively equipped with at least one point of oil pocket; In upper oil cavitie block, the quantity of point oil pocket is consistent with the quantity of hydraulic efficiency servo-valve in the hydraulic efficiency servo-valve group being connected to upper oil cavitie block; The quantity of point oil pocket of lower oil cavitie block is consistent with the quantity of hydraulic efficiency servo-valve in the hydraulic efficiency servo-valve group being connected to lower oil cavitie block.
The present invention also provides a kind of plate blank material drawing pressing method plate blank material being carried out drawing, it is characterized in that having following steps: be placed on by plate blank material between upper and lower two oil pocket blocks; Hydraulic oil shunting rear push is entered each point of oil pocket and then forms hydraulic pressure oil film in the ledge zone upper and lower surface of plate blank material by control unit hydraulic control pump, upper hydraulic efficiency servo-valve group and lower hydraulic efficiency servo-valve group; Wherein, hydraulic pressure oil film provides pressure-pad-force, and control unit regulates the oil mass entering each point of oil pocket to realize the adjustment to each point of oily cavity pressure by hydraulic control pump and hydraulic efficiency servo-valve.
Plate blank material drawing pressing method provided by the invention, can also have such feature: wherein, and upper oil cavitie block and lower oil cavitie block are all provided with at least one point of oil pocket; Divide oil pocket that hydraulic pressure oil film is correspondingly divided at least one point of oil film area.
The effect of invention
According to flanging system and the plate blank material drawing pressing method of the plate blank material drawing that the present invention relates to, be placed between upper oil cavitie block in hydraulic press and lower oil cavitie block need the plate blank material ledge zone of drawing, when carrying out drawing, can make to fill hydraulic oil in upper lower oil cavitie block by hydraulic control pump and hydraulic efficiency servo-valve, this hydraulic oil forms hydraulic pressure oil film on surface, the ledge zone of plate blank material, required pressure-pad-force when this hydraulic pressure oil film both can ensure to provide drawing and forming, neat liquid sliding friction can be formed again, produce enough little coefficient of friction, thus increase drawing and forming limit depth, surface of shaped parts no marking can be ensured, improve surface quality.Therefore, the present invention can provide a kind of and the surface of blank ledge zone and hydraulic pressure oil film directly contacted when carrying out drawing to plate blank material to carry out flanging can realize neat liquid sliding friction to make a kind of plate blank material drawing flanging system that final molding part surface no marking quality is very high and plate blank material drawing pressing method.
Accompanying drawing explanation
Fig. 1 is the structural representation of the flanging system of plate blank material drawing in embodiment in the present invention;
Fig. 2 be plate blank material drawing in embodiment in the present invention flanging system in the structural representation of oil pocket block in oil pocket block group;
Fig. 3 is the operation principle schematic diagram of the flanging intrasystem oil pocket block group of plate blank material drawing in embodiment in the present invention;
Fig. 4 is the structural representation of the intrasystem return channel of flanging of the plate blank material drawing of embodiment in the present invention; And
Fig. 5 be the flanging system of a plate blank material drawing of embodiment in the present invention and hydraulic servo cylinder combinationally use schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the flanging system of plate blank material drawing in embodiment in the present invention; Fig. 2 be plate blank material drawing in embodiment in the present invention flanging system in the structural representation of oil pocket block in oil pocket block group.
As shown in Figure 1, in the present embodiment, provide a kind of plate blank material drawing flanging system 100 of plate blank material being carried out drawing, comprise, fuel reserve tank unit 1, hydraulic pump unit 2, current divider unit 3, hydraulic press unit 4, hydraulic servo valve cell 5 and controller unit 6.
Hydraulic pump unit 2 passes through oil pipe 7a with fuel reserve tank unit 1 and is connected, and hydraulic pump unit 4 is connected with current divider unit 3 by oil pipe 7b, and current divider connects eight branch road oil pipe 7c, and these eight branch road oil pipes are connected to hydraulic servo valve cell 5.
Hydraulic servo valve cell 5 comprises eight hydraulic efficiency servo-valves, and this element is divided into two groups, and four hydraulic efficiency servo-valves on the left side are a hydraulic efficiency servo-valve group, and four hydraulic efficiency servo-valves on the right are another hydraulic efficiency servo-valve group.Two hydraulic efficiency servo-valve groups are all connected with hydraulic press unit 4.
Hydraulic press unit 4 comprises the oil pocket block group, return channel 4c, sealing ring and three the hold-down support 4e that are provided with upper oil cavitie block 4a and lower oil cavitie block 4b, three hold-down support 4e are mutually 120 degree and weld together with return channel 4c return channel 4e is fixed on certain position, and the bottom of return channel 4c and the top of lower oil cavitie block 4b link together by sealing ring is sealed.
Upper oil cavitie block 4a in hydraulic press unit 4 and lower oil cavitie block 4b adopts the oil pocket block of same model.As shown in Figure 2, lower oil cavitie block 4b is divided into four points of oil pockets, and upper oil cavitie block 4a is divided into four points of oil pockets equally.Hydraulic efficiency servo-valve group 5a in hydraulic servo valve cell 5 is linked together with special attaching nut 8 respectively by four points of oil pockets in four, the left side in branch road oil pipe 7c branch road oil pipe and upper oil cavitie block 4a.Return channel 4c is connected with fuel reserve tank unit 1 by oil pipe 7d.
Controller unit 6 comprises programmable logic controller (PLC) (Programmable LogicController is called for short PLC) 6a and industrial computer 6b.Programmable logic controller (PLC) (ProgrammableLogic Controller, be called for short PLC) 6a is together with by nine control signal wires, totally eight hydraulic efficiency servo-valves are connected to hydraulic efficiency servo-valve group 5b with the hydraulic efficiency servo-valve group 5a in industrial computer 6b, hydraulic pump unit 4 and hydraulic servo valve cell 5.
Fig. 3 is the operation principle schematic diagram of the flanging intrasystem oil pocket block group of plate blank material drawing in embodiment in the present invention.
As shown in Figure 3, lower oil cavitie block 4b is set with rubber seal 14, the upper and lower surface of the ledge zone of plate blank material 10 forms the gap of 0.7mm with upper oil cavitie block 4a and lower oil cavitie block 4b respectively, high pressure liquid force feed in this gap in form high pressure oil film 11 for plate blank material ledge zone pressure-pad-force be provided.
Fig. 4 is the structural representation of the intrasystem return channel of flanging of the plate blank material drawing of embodiment in the present invention.
As shown in Figure 4, return channel 4c is a columniform container of one-tenth.
Fig. 5 be the flanging system of a plate blank material drawing of embodiment in the present invention and hydraulic servo cylinder combinationally use schematic diagram.
As shown in Figure 5, upper oil cavitie block 4a in the flanging system 100 of blank drawing is welded on servo hydraulic cylinder 200, servo hydraulic cylinder 200 is connected with fuel reserve tank unit 1 by oil pipe 7e, programmable logic controller (PLC) (Programmable Logic Controller is called for short PLC) 6a is connected to again by control signal wire.
Plate blank material drawing pressing method is described in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5.
The first step: start the industrial computer 6b in control unit 6 and programmable logic controller (PLC) (ProgrammableLogic Controller, be called for short PLC) 6a, run the program write, when servo hydraulic cylinder 200 drives upper oil cavitie block 4a to move up apart from return channel 4c certain distance, inner by needing the plate blank material 10 of drawing to be placed on return channel 4c, now, upper oil cavitie block 4c above plate blank material ledge zone, here is lower oil cavitie block 4b, afterwards, working procedure makes to stop during servo hydraulic cylinder 200 falls downward distance plate blank material 0.7mm.
Second step, hydraulic oil 1a is filled in fuel reserve tank unit 1, operation industrial computer 7b, run the program write, the a part of hydraulic oil driving hydraulic pump unit 2 to extract in hydraulic oil 1a arrives current divider unit 3 through oil pipe 7a and 7b, the hydraulic oil be drawn out of is carried out being diverted through eight branch road oil pipe 7c and arrives in upper oil cavitie block 4a and lower oil cavitie block 4b through hydraulic servo unit by current divider unit 3, and the upper and lower surface of the hydraulic oil in upper oil cavitie block 4a and lower oil cavitie block 4b in the ledge zone of plate blank material 10 forms hydraulic pressure oil film.Now by Digit Control Machine Tool (not shown in FIG.), through the hole in the middle of upper oil cavitie block 4a, drawing and forming is carried out to plate blank material 10.
Meanwhile, the force of sliding friction between hydraulic pressure oil film when pressure-pad-force and plate blank material 10 that oil mass that the program write controls the hydraulic oil in upper oil cavitie block 4a and lower oil cavitie block 4b applies to ledge zone with regulator solution force feed film and oil pocket block 4a and 4b are subjected to displacement and the ledge zone of plate blank material 10 is run by operation industrial computer 7b.
At the end of drawing and forming needs, programmable logic controller (PLC) (Programmable Logic Controller in control unit in 6, being called for short PLC) 6a and industrial computer 6b runs the program that write to drive hydraulic pump unit 2 servo valve units 5, extracting the out of service and servo hydraulic cylinder 200 of the work of hydraulic oil 1a drives upper oil cavitie block 4a to move up, when distance return channel 4c certain distance, now, manufactured profiled member is taken off.Meanwhile, the part in the hydraulic oil 1a in return channel 4c is flow back in fuel reserve tank unit 1 by Action of Gravity Field.Repeat the flanging of said process realization to next plate blank material.
The effect of embodiment and effect
By programmable logic controller (PLC) (Programmable Logic Controller, be called for short PLC) and the programme-control of industrial computer, different oil pockets can produce different hydraulic couplings, each oil pocket and plate blank material ledge zone form hydraulic pressure oil film, different pressure-pad-forces when this hydraulic pressure oil film both can ensure drawing and forming needed for each subregion, neat liquid sliding friction can be formed again, produce enough little coefficient of friction, thus increase drawing and forming limit depth, ensure surface of shaped parts no marking, improve surface of shaped parts quality, meet actual production demand.
By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, many variations can also be made to it.
Claims (5)
1. when carrying out drawing to the drawing district of plate blank material, the ledge zone be connected with described drawing district of this plate blank material is carried out to a plate blank material drawing flanging system for flanging, it is characterized in that, comprising:
Fuel reserve tank, stores hydraulic oil;
Current divider, exports described hydraulic oil thus shunting respectively by the upper oil pipe group be made up of respectively multiple-tubing string and lower oil pipe group;
Hydraulic pump, is arranged between described current divider and described fuel reserve tank, to the described hydraulic oil pressurization of extracting out from described fuel reserve tank;
Hydraulic press assembly, comprises the upper oil cavitie block be connected with described upper oil pipe group and is connected with described lower oil pipe group and the lower oil cavitie block relative with described upper oil cavitie block, the described hydraulic oil between described upper oil cavitie block and described lower oil cavitie block is fed back to the return channel of described fuel reserve tank;
Upper hydraulic efficiency servo-valve group, comprises at least one hydraulic efficiency servo-valve, and coupling is arranged on and is connected in oil pipe described in the every root of described upper oil pipe group;
Lower hydraulic efficiency servo-valve group, comprises at least one hydraulic efficiency servo-valve, coupling be arranged on be connected to described lower oil pipe group every root described in oil pipe; And
Control unit, comprise the controller be connected with hydraulic efficiency servo-valves all in hydraulic efficiency servo-valves all in described hydraulic pump, described upper hydraulic efficiency servo-valve group and described lower hydraulic efficiency servo-valve group respectively and the industrial computer be connected with described controller, by controlling the hydraulic efficiency servo-valve in described upper hydraulic efficiency servo-valve group and the hydraulic efficiency servo-valve in described lower hydraulic efficiency servo-valve group regulates the oil mass entering described hydraulic press assembly.
2. plate blank material drawing flanging system according to claim 1, is characterized in that:
Wherein, described hydraulic press assembly also comprises for sealing the sealing ring of described lower oil cavitie block and described return channel and being fixedly connected with the hold-down support of described lower oil cavitie block.
3. plate blank material drawing flanging system according to claim 1, is characterized in that:
Wherein, described upper oil cavitie block and described lower oil cavitie block are respectively equipped with at least one point of oil pocket;
Described in described upper oil cavitie block, the quantity of point oil pocket is consistent with the quantity of hydraulic efficiency servo-valve in the described hydraulic efficiency servo-valve group being connected to described upper oil cavitie block;
The quantity of described point of oil pocket of described lower oil cavitie block is consistent with the quantity of hydraulic efficiency servo-valve in the described hydraulic efficiency servo-valve group being connected to described lower oil cavitie block.
4. use the plate blank material drawing flanging system described in claim 3 plate blank material to be carried out a plate blank material drawing pressing method for drawing, it is characterized in that there are following steps:
Described plate blank material is placed between upper and lower two oil pocket blocks;
Described control unit controls described hydraulic pump, described upper hydraulic efficiency servo-valve group and described lower hydraulic efficiency servo-valve group and described hydraulic oil shunting rear push is entered point oil pocket described in each and then form hydraulic pressure oil film in the ledge zone upper and lower surface of described plate blank material;
Wherein, described hydraulic pressure oil film provides pressure-pad-force, and described control unit regulates the oil mass entering point oil pocket described in each to realize the adjustment to described in each point of oily cavity pressure by controlling described hydraulic pump and described hydraulic efficiency servo-valve.
5. plate blank material drawing pressing method according to claim 4, is characterized in that:
Wherein, described hydraulic pressure oil film is correspondingly divided at least one point of oil film area by described point of oil pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018523.9A CN103752669B (en) | 2014-01-15 | 2014-01-15 | The flanging system of plate blank material drawing and plate blank material drawing pressing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018523.9A CN103752669B (en) | 2014-01-15 | 2014-01-15 | The flanging system of plate blank material drawing and plate blank material drawing pressing method |
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| Publication Number | Publication Date |
|---|---|
| CN103752669A CN103752669A (en) | 2014-04-30 |
| CN103752669B true CN103752669B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410018523.9A Expired - Fee Related CN103752669B (en) | 2014-01-15 | 2014-01-15 | The flanging system of plate blank material drawing and plate blank material drawing pressing method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3715902A (en) * | 1971-02-10 | 1973-02-13 | Western Electric Co | Method and apparatus for operating on a blank of material,e.g.,deep drawing |
| US4745792A (en) * | 1986-10-14 | 1988-05-24 | Aluminum Company Of America | Blankholder for a draw press |
| US5932167A (en) * | 1993-08-11 | 1999-08-03 | Hy Tech Worldwide, Inc. | Method for blow down hydroforming sheet material |
| JPH11319973A (en) * | 1998-05-15 | 1999-11-24 | Hoei Kogyo Kk | Press |
| CN1817501A (en) * | 2005-02-07 | 2006-08-16 | 丰田自动车株式会社 | Hydraulic pressure molding device and hydraulic pressure molding method |
| CN201249232Y (en) * | 2008-09-09 | 2009-06-03 | 南通锻压设备有限公司 | Multi-point blank holding device of a frame type hydraulic machine. |
-
2014
- 2014-01-15 CN CN201410018523.9A patent/CN103752669B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3715902A (en) * | 1971-02-10 | 1973-02-13 | Western Electric Co | Method and apparatus for operating on a blank of material,e.g.,deep drawing |
| US4745792A (en) * | 1986-10-14 | 1988-05-24 | Aluminum Company Of America | Blankholder for a draw press |
| US5932167A (en) * | 1993-08-11 | 1999-08-03 | Hy Tech Worldwide, Inc. | Method for blow down hydroforming sheet material |
| JPH11319973A (en) * | 1998-05-15 | 1999-11-24 | Hoei Kogyo Kk | Press |
| CN1817501A (en) * | 2005-02-07 | 2006-08-16 | 丰田自动车株式会社 | Hydraulic pressure molding device and hydraulic pressure molding method |
| CN201249232Y (en) * | 2008-09-09 | 2009-06-03 | 南通锻压设备有限公司 | Multi-point blank holding device of a frame type hydraulic machine. |
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| Publication number | Publication date |
|---|---|
| CN103752669A (en) | 2014-04-30 |
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