CN107289315A

CN107289315A - A kind of thin-slab structure part beading location mode

Info

Publication number: CN107289315A
Application number: CN201710611261.0A
Authority: CN
Inventors: 柳玉起; 张成林; 孔炎; 冯卉; 孙瑜
Original assignee: Huazhong University of Science and Technology; ZTE Corp Nanjing Branch
Current assignee: Huazhong University of Science and Technology; ZTE Corp Nanjing Branch
Priority date: 2017-07-25
Filing date: 2017-07-25
Publication date: 2017-10-24

Abstract

The invention discloses a kind of thin-slab structure part beading design method, the purpose is to solve existing thin-slab structure part warpage, strengthen the technical problem of the flatness of product.This method includes：(1) distribution of annular beading；(2) the internal distribution for strengthening beading；Wherein annular beading refers to the self-enclosed rib structure being distributed along product design, and the diagonal bar for the profile approximate " X " that beading refers to, including diagonal bar bar not vertical with ring muscle are strengthened in inside.The thin-slab structure part beading design carried out using this method, can effectively improve the flatness of product, in the technique that can be widely applied to sheet member beading bulging.

Description

A kind of thin-slab structure part beading location mode

Technical field

The invention belongs to field of machining, more particularly, to a kind of new thin-slab structure part beading location mode.

Background technology

The structure material thinner thickness of light sheet products, in the range of having focused largely on 0.6mm to 2mm, the depth of beading Only one thickness of slab, the warpage of part is serious after shaping.Caused by main cause is thin plate resilience.

The warpage resilience of thin-slab structure part is urgent problem in industrial production, and it refers to that diel unloads it Afterwards, the stress of thin slab interior re-starts a process of distribution.Resilience can cause the shape of drawing quality steel sheet, size deviation to set Meter is required, the quality of stamping parts is influenceed, including surface configuration, dimensional accuracy and assembly performance etc..Resilience is except making punching press Part forming quality is poor, poor dimensional precision, also add the school shape workload after shaping, therefore effectively control is needed in actual production Springback capacity.

The warpage resilience shaped for thin-slab structure part, existing solution technology is made an issue of on mould structure mostly, Such as increase flange fixing installation, by the way of the stamping beading of multiple step format, reinforcing overvoltage etc., the mould structure of this mode is answered Miscellaneous, cost is high.

The content of the invention

For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of thin-slab structure part beading distribution side Method, its object is to the beading arrangement mode by this method, the springback capacity for thus solving prior art presence is big, structural member shape The technical problem of shape, poor dimensional precision and assembly performance difference.

To achieve the above object, according to one aspect of the present invention there is provided a kind of structural member beading distribution mode, including Following steps：

(1) annular beading is set, and the plane geometry yardstick of the annular beading is the 0.85-0.95 of sheet plane geometric scale Times；

(2) beading, the warpage for controlling thin plate are strengthened provided with one or more middle parts in the middle part of thin plate.

Preferably, it is that two strips strengthen the X-shaped shape that beading intersects that beading is strengthened at the middle part, and the middle part is strengthened Beading is on thin plate Central Symmetry.

Preferably, the beading is combined together by impact style and thin plate.

Preferably, some short beadings are also set inside thin plate, for controlling local sheet warpage；The short beading on Thin plate Central Symmetry is distributed.

Preferably, the annular beading and thin plate are rectangle, and annular beading rectangular frame structure is dimensioned slightly smaller than thin Plate, for controlling sheet edges warpage.

In general, by the contemplated above technical scheme of the present invention compared with prior art, due to annular beading frame The planar dimension of frame is the 0.85-0.95 of sheet plane yardstick, can effectively suppress the warpage of thin-slab structure part corner, middle part adds Suppress muscle and be designed as X-shaped, the warpage of length and width both direction can be suppressed, raising thin-slab structure part geomery essence can be obtained The beneficial effect of degree.

Brief description of the drawings

Fig. 1 is lid part model figure on certain box server；

Fig. 2 is the traditional beading distribution mode of part and simulation analysis result；

Fig. 3 is new design beading distribution mode one and simulation analysis result；

Fig. 4 is new design beading distribution mode two and simulation analysis result；

Fig. 5 is new design beading distribution mode three and simulation analysis result.

Embodiment

In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below Not constituting conflict each other can just be mutually combined.

Embodiment 1

The long 666mm of lid part, wide 427mm on certain box server, thick 1mm, flange height is 12mm, it is desirable to beading direction Consistent with flange direction, rib is highly a thickness of slab, and plate upper Positioning holes are more, and also there is the positioning hole of cooperation side.Part As shown in Figure 1.

Traditional beading design method is generally horizontal bar and perpendicular muscle, simulation analysis result when Fig. 2 is initial design beading.From emulation As can be seen that sheet part warpage is serious in result figure, resilience interval is (- 0.245mm, 3.66mm), and spring-back area mainly collects In reach 4mm in part upper end, resilience warpage, have a strong impact on the dimensional accuracy of part.

Fig. 3 is newly-designed beading distribution mode, and the annular beading of border distribution, Central of the parts is distributed spreading out for X-shaped rib Raw muscle, remaining short rib is symmetrical.From simulation result figure as can be seen that part resilience interval for (- 0.018mm, 0.623mm), the resilience warpage of part is controlled within 0.65mm, substantially increases the dimensional accuracy of part.

Fig. 4 is newly-designed beading distribution mode, and the annular beading of border distribution, Central of the parts is distributed X-shaped rib, remaining Short rib is symmetrical.As can be seen that part resilience interval is (- 0.408mm, 0.577mm) from simulation result figure, part Flatness is reduced within 1mm, the result relative to Fig. 2, improves the dimensional accuracy of part.

Fig. 5 is newly-designed beading distribution mode, the annular beading of border distribution, the derivative muscle distribution of two X-shaped ribs In part upper and lower ends, rib is symmetrical on Central of the parts.As can be seen that part resilience interval is from simulation result figure (- 0.409mm, 0.457mm), the flatness of part is controlled within 0.85mm, effectively increases the dimensional accuracy of product.

In summary, rib distribution mode proposed by the present invention can control returning for product from part length and width both direction Play warpage, greatly reduce it is stamping after product resilience it is interval, the problem of effectively reducing product resilience warpage.

As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include Within protection scope of the present invention.

Claims

1. a kind of thin-slab structure part beading location mode, it is characterised in that comprise the following steps：

(1) annular beading is set, and the plane geometry yardstick of the annular beading is 0.85-0.95 times of sheet plane geometric scale；

2. beading location mode as claimed in claim 1, it is characterised in that it is that two strips are strengthened that beading is strengthened at the middle part Strengthen beading on thin plate Central Symmetry in the X-shaped shape that beading intersects, the middle part.

3. beading location mode as claimed in claim 1, it is characterised in that the beading is combined by impact style and thin plate Together.

4. beading location mode as claimed in claim 2, it is characterised in that some short beadings are also set inside thin plate, are used for Control local sheet warpage；The short beading is distributed on thin plate Central Symmetry.

5. beading location mode as claimed in claim 1, it is characterised in that the annular beading and thin plate are rectangle, ring Shape beading rectangular frame structure, is dimensioned slightly smaller than thin plate, for controlling sheet edges warpage.