CN203155791U - Numerical-control multi-point mold-free hydraulic bulging device - Google Patents
Numerical-control multi-point mold-free hydraulic bulging device Download PDFInfo
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- CN203155791U CN203155791U CN 201220340134 CN201220340134U CN203155791U CN 203155791 U CN203155791 U CN 203155791U CN 201220340134 CN201220340134 CN 201220340134 CN 201220340134 U CN201220340134 U CN 201220340134U CN 203155791 U CN203155791 U CN 203155791U
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- multiple spot
- mould
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Abstract
The utility model discloses a numerical-control multi-point mold-free hydraulic bulging device. The conventional sheet forming devices are low in production efficiency, low in machining accuracy and unsuited for mass production. The numerical-control multi-point mold-free hydraulic bulging device comprises a multi-point mold (21), the multi-point mold is mounted in a housing (22) and is connected to a multi-point mold form-adjusting system (2), the housing is connected with a press machine (3), the multi-point mold is connected with a universal head (18), a sheet metal (24) is disposed between an upper blank holder (25) and a lower blank holder (26), a flexible base plate (23) is disposed between the universal head and the sheet metal, an air pump (7) is connected to a hydraulic chamber (20) through an air inlet pipe (27), and a hydraulic device (5) is connected to the hydraulic chamber through a liquid inlet pipe (4) and a liquid outlet pipe (6). The device disclosed by the invention is used for performing numerical-control multi-point mold-free hydraulic bulging.
Description
Technical field:
The utility model belongs to the metal forming technical field, and being specifically related to a kind of numerical control multiple spot does not have mould hydraulic expanding-forming equipment.
Background technology:
Along with the development of society, complicated hyperbolic sheet metal is more and more used in all conglomeraties such as aircraft, boats and ships, express locomotive, automobile and even building.People not only require the hyperboloid that is shaped different, require its forming accuracy height, production efficiency height again, surface quality is good, material thickness is even.This has just proposed great challenge to metal sheet forming technology.
In traditional plate manufacturing process, the hand finishing method does not occupy leading position because production efficiency is low, machining accuracy is low, be not suitable for production in enormous quantities in sheet forming.The precision height of die forming method production efficiency height, workpiece, the suitable production in enormous quantities in enormous quantities are for many years always in occupation of leading position.But shortcoming is mould, and to manufacture and design the cycle long, the maintenance cost height, and the part that often is shaped needs a plurality of moulds, causes new product development cycle long, the cost height, and lack flexiblely, product does slightly to change afterwards that mould need redesign replacing.
Therefore, the sheet forming technology of some new shapes is arisen at the historic moment, as: contour peening, laser forming, water jet mouldless shaping technology, digitlization progressive molding, non-mould multi-point forming etc.Yet the sheet forming technology of these several new shapes also exists some shortcomings and limitations, and the limitation of contour peening is spherical deformation trend, distortion is limited, restrictive condition is harsh, influence factor is various etc.; The shortcoming of laser forming is the cost height, is not easy control; Water jet mouldless shaping technology also needs constantly perfect, also has a lot of problems in the practical application; The digitlization progressive molding need be made mould, and processing cost height, cycle are long, shortcomings such as surface quality difference; Compare with preceding several forming techniques, the non-mould multi-point forming technology has lot of advantages: realize mouldless shaping, optimize deformation path, skinny device is shaped big shape part, easily be automated.
Multiple spot mouldless shaping technology is divided into according to forming mode: multiple spot is to being pressed into shape technology and multiple spot stretch forming technology.Multiple spot occur gauffer easily, and springback capacity is bigger to being pressed into the shape technology when running into local curvature and change greatly.Multiple spot stretch forming technology is compared multiple spot to being pressed into the shape technology, and its springback capacity is little, forming accuracy is higher, wrinkle resistant pleat.Multiple spot does not now have die drawing, and to be stretched into the shape technology all be to adopt the mechanical stretching form, for example clamps plate with clamp and carry out mechanical stretching.And also there are following three kinds of major defects in the mechanical stretching forming mode: form the stress concentration phenomenon in slab interior easily 1., the metal material low for a lot of intensity, that percentage elongation is little and some are the bigger curved surface of curvature comparatively, in drawing process, be easy to generate and tear.2. unusual waste material.In today of resource shortage like this, this waste seems and particularly should not.3. no matter be multiple spot to being pressed into shape technology or multiple spot stretch forming technology, its forming accuracy is not high, can only reach the millimeter level.
The utility model content:
The purpose of this utility model provides a kind of numerical control multiple spot does not have mould hydraulic expanding-forming equipment, multiple spot is not had the hydraulic expanding-forming technology that die drawing is stretched into shape technology and sheet material to combine, by improving, form the numerical control multiple spot and do not had the mould hydraulic bulging process, with the hydraulic expanding-forming technology uniform force application of sheet material, distortion is smooth, forming limit is high, forming quality good, forming accuracy is high, the characteristics of mold damage not, the characteristics that do not need to make mould with multiple spot mouldless shaping technology, realize automation easily are combined togather.
Above-mentioned purpose realizes by following technical scheme:
A kind of numerical control multiple spot does not have mould hydraulic expanding-forming equipment, its composition comprises: the multiple spot mould, described multiple spot mould is installed in the housing, described multiple spot mould transfers the shape system to be connected with the multiple spot mould, described housing is connected with forcing press, described multiple spot mould connects Universal-head, sheet metal is between last blank holder and following blank holder, flexible backing plate is between described Universal-head and described sheet metal, air pump is connected with hydraulic cavities by air inlet pipe, and hydraulic test is connected with described hydraulic cavities with drain pipe by feed tube.
Described numerical control multiple spot does not have mould hydraulic expanding-forming equipment, it is numerical control three-dimensional machinery hand that described multiple spot mould is transferred the shape system, described numerical control three-dimensional machinery hand is formed and is comprised Z axle electric rotating machine, described Z axle electric rotating machine is connected with hoistable platform with the Z spindle motor, described Z axle electric rotating machine and described Z spindle motor and hoistable platform are connected on y-axis motor and the guide rail, described y-axis motor and guide rail are connected on X-axis motor and the guide rail, described X-axis motor and guide rail connect the multiple spot mould and transfer shape system housing, described multiple spot mould is transferred in the shape system housing datum plane is installed, described datum plane is connected with element body, described element body is connected with the bulb bearing, and described bulb bearing is connected with Universal-head.
Described numerical control multiple spot does not have mould hydraulic expanding-forming equipment, and described Z spindle motor connects hoistable platform, and described X-axis motor, described y-axis motor, described Z spindle motor connect guide rail respectively.
Described numerical control multiple spot does not have mould hydraulic expanding-forming equipment, between described element body and the described Universal-head extension spring is installed, and on the described element body ranging rod is installed.
Beneficial effect:
1. realization mouldless shaping.Construct various shaping curved surface by the control to each element body motion, can replace that traditional unitary mould saves that mould manufactures and designs, required human and material resources and financial resources such as debugging and preservation, shorten life cycle of the product significantly, reduce production costs, improve competitiveness of product.Compare with the die forming method, not only save the expense of processing and manufacturing mould, and save a large amount of repairing a die and the mode transfer time; Compare with the hand finishing method, the product precision height of shaping, quality are good, and have significantly improved production efficiency.
Realize automation.Area of computer aided is adopted in curved surface appearance, realizes the integrated production of CAD/CAM/CAE, high efficiency, and labour intensity is little, has greatly improved labourer's operating environment.
The forming limit height.Because the effect of hydraulic pressure is tightly fitted blank and die in the hydraulic expanding-forming, produce " friction keeps effect ", improved the bearing capacity of force transmission region.What is more important, complex curved surface parts for automobile manufacturing field, oppositely the effect of hydraulic pressure forms " soft drawn is stretched muscle ", eliminate suspension area, setting up useful friction between blank and the mould makes the radially tension of fillet place, die bottom blank reduce, strain track is skew left on the moulding limiting figure, can significantly improve forming limit, and the two tensile stress states of the grade that tradition stretches then cause drawing crack easily.
The forming accuracy height.The multiple spot mould transfers shape to adopt closed-loop control, will transfer the control of shape precision at micron order.The Universal-head of multiple spot mould element body end is that the centre of sphere rotates with the summit, has eliminated the camber line error of common round end element body.Use hydraulic expanding-forming significantly to improve Forming Quality and the performance of workpiece, the applying degree of workpiece and mould is good, and springback capacity is minimum.
. the space curved surface adaptability to complexity is strong.The Universal-head rotational angle of multiple spot mould element body end can reach 39 °, can seamlessly transit along with whole curved surface.The Universal-head of multiple spot mould element body end is replaceable, is replaced with the Universal-head of special surface shape, has increased the multiple spot mould greatly to complex-curved adaptability.
Sheet metal thickness attenuate amount is even, and residual stress is little.Hydroforming makes workpiece in the process that is shaped, and stressed evenly each point of workpiece enters plastic deformation uniformly, is out of shape well-balancedly, so the workpiece after the moulding all enters the plastic deformation stage, thickness is even, does not almost have residual stress.
Can satisfy the shaping of small-sized curved surface.Owing to adopted numerical control three-dimensional machinery hand control to transfer shape, greatly dwindled the occupied volume of control appliance, make the multiple spot mould can make small-sized curved surface.
Description of drawings:
Accompanying drawing 1 is the structural representation of product.
Accompanying drawing 2 is that the multiple spot mould in the accompanying drawing 1 is transferred the structural representation of shape system.
Accompanying drawing 3 is element body in the accompanying drawing 2 and the connection diagram of universal ball end.
The specific embodiment:
Embodiment 1:
A kind of numerical control multiple spot does not have mould hydraulic expanding-forming equipment, its composition comprises: multiple spot mould 21, described multiple spot mould is installed in the housing 22, described multiple spot mould transfers shape system 2 to be connected with the multiple spot mould, described housing is connected with forcing press 3, described multiple spot mould connects Universal-head 18, sheet metal 24 is between last blank holder 25 and following blank holder 26, flexible backing plate 23 is between described Universal-head and described sheet metal, air pump 7 is connected with hydraulic cavities 20 by air inlet pipe 27, and hydraulic test 5 is connected with described hydraulic cavities with drain pipe 6 by feed tube 4.
Embodiment 2:
There is not mould hydraulic expanding-forming equipment according to embodiment 1 described numerical control multiple spot, it is described numerical control three-dimensional machinery hand that the multiple spot mould of stating is transferred the shape system, described numerical control three-dimensional machinery hand is formed and is comprised Z axle electric rotating machine 8, described Z axle electric rotating machine is connected with hoistable platform 10, described hoistable platform connects Z spindle motor 9, described Z axle electric rotating machine is connected Y-axis guide rail 13 with described hoistable platform, described Y-axis guide rail connects described y-axis motor, described Y-axis guide rail is connected with X-axis guide rail 28, described X-axis motor is connected on the described X-axis guide rail, described X-axis guide rail connects the multiple spot mould and transfers shape system housing 14, datum plane 1 is installed in the described housing, described datum plane is connected with element body 15, and described element body is connected with bulb bearing 17, and described bulb bearing is connected with Universal-head 18.
Embodiment 3:
Do not have mould hydraulic expanding-forming equipment according to embodiment 1 described numerical control multiple spot, described Z spindle motor connects described hoistable platform 10, and described X-axis motor connects described X-axis guide rail, described y-axis motor connects the Y-axis guide rail.
Embodiment 4:
Do not have mould hydraulic expanding-forming equipment according to embodiment 1 described numerical control multiple spot, between described element body and the described Universal-head extension spring 19 is installed, ranging rod 16 is installed on the described element body.
Embodiment 5:
There is not mould hydraulic expanding-forming equipment according to embodiment 1 or 2 or 3 described numerical control multiple spots, described element body is the screw lift structure, by the rotation of screw mandrel, realize feed screw nut's lifting, described Universal-head is installed in described element body end, be that the centre of sphere rotates with the Universal-head top center point, the maximum space corner is 39 °, and in the rotation process, the vertical coordinate of top center point does not change, described Universal-head is detachable, changes according to shaping curved surface form.
Embodiment 6:
There is not mould hydraulic expanding-forming equipment according to embodiment 1 or 2 or 3 described numerical control multiple spots, described numerical control multiple spot does not have mould hydraulic expanding-forming equipment, described numerical control three-dimensional machinery hand directly reads the control point coordinate from the shaping workpiece model file, by described X-axis motor and described X-axis guide rail, the motor of described Y-axis and described Y-axis guide rail, make described Z axle electric rotating machine move to assigned address, aim at described element body and be rotated the described element body height of adjustment, described numerical control three-dimensional machinery hand, by described Z spindle motor and described hoistable platform, realize the clutch of described Z axle electric rotating machine and described element body; Described numerical control three-dimensional machinery hand is transferred the shape elevation information by the element body of described ranging rod feedback, carries out closed-loop control, transfers the shape precision to reach micron order.
Claims (4)
1.
A kind of numerical control multiple spot does not have mould hydraulic expanding-forming equipment, its composition comprises: the multiple spot mould, it is characterized in that: described multiple spot mould is installed in the housing, described multiple spot mould transfers the shape system to be connected with the multiple spot mould, described housing is connected with forcing press, described multiple spot mould connects Universal-head, sheet metal is between last blank holder and following blank holder, flexible backing plate is between described Universal-head and described sheet metal, air pump is connected with hydraulic cavities by air inlet pipe, and hydraulic test is connected with described hydraulic cavities with drain pipe by feed tube.
2.
Numerical control multiple spot according to claim 1 does not have mould hydraulic expanding-forming equipment, it is characterized in that: it is numerical control three-dimensional machinery hand that described multiple spot mould is transferred the shape system, described numerical control three-dimensional machinery hand is formed and is comprised Z axle electric rotating machine, described Z axle electric rotating machine is connected with hoistable platform with the Z spindle motor, described Z axle electric rotating machine and described Z spindle motor and hoistable platform are connected on y-axis motor and the guide rail, described y-axis motor and guide rail are connected on X-axis motor and the guide rail, described X-axis motor and guide rail connect the multiple spot mould and transfer shape system housing, described multiple spot mould is transferred in the shape system housing datum plane is installed, described datum plane is connected with element body, described element body is connected with the bulb bearing, and described bulb bearing is connected with Universal-head.
3.
Numerical control multiple spot according to claim 2 does not have mould hydraulic expanding-forming equipment, it is characterized in that: described Z spindle motor connects hoistable platform, and described X-axis motor, described y-axis motor, described Z spindle motor connect guide rail respectively.
4.
Numerical control multiple spot according to claim 2 does not have mould hydraulic expanding-forming equipment, it is characterized in that: between described element body and the described Universal-head extension spring is installed, on the described element body ranging rod is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340134 CN203155791U (en) | 2012-07-15 | 2012-07-15 | Numerical-control multi-point mold-free hydraulic bulging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340134 CN203155791U (en) | 2012-07-15 | 2012-07-15 | Numerical-control multi-point mold-free hydraulic bulging device |
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| CN203155791U true CN203155791U (en) | 2013-08-28 |
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| CN 201220340134 Expired - Fee Related CN203155791U (en) | 2012-07-15 | 2012-07-15 | Numerical-control multi-point mold-free hydraulic bulging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728695A (en) * | 2012-07-15 | 2012-10-17 | 哈尔滨工业大学空间钢结构幕墙有限公司 | Multipoint moldless hydraulic bulge forming process and multipoint moldless hydraulic bulge forming device |
| CN103878228A (en) * | 2014-02-26 | 2014-06-25 | 哈尔滨工业大学（威海） | Flexible multi-point forming device for plates |
-
2012
- 2012-07-15 CN CN 201220340134 patent/CN203155791U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728695A (en) * | 2012-07-15 | 2012-10-17 | 哈尔滨工业大学空间钢结构幕墙有限公司 | Multipoint moldless hydraulic bulge forming process and multipoint moldless hydraulic bulge forming device |
| CN103878228A (en) * | 2014-02-26 | 2014-06-25 | 哈尔滨工业大学（威海） | Flexible multi-point forming device for plates |
| CN103878228B (en) * | 2014-02-26 | 2016-04-27 | 哈尔滨工业大学（威海） | Sheet material flexible multipoint forming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160715 |