CN104741472A - Plate material omnibearing locating structure and method in hot press forming technology - Google Patents
Plate material omnibearing locating structure and method in hot press forming technology Download PDFInfo
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- CN104741472A CN104741472A CN201510149109.6A CN201510149109A CN104741472A CN 104741472 A CN104741472 A CN 104741472A CN 201510149109 A CN201510149109 A CN 201510149109A CN 104741472 A CN104741472 A CN 104741472A
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- Prior art keywords
- plate
- hot press
- press forming
- forming technology
- flanging bore
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Abstract
The invention relates to the field of hot press forming and discloses a plate material omnibearing locating structure and method in a hot press forming technology. According to the omnibearing locating structure, a circular flanged hole extending out from the surface of a plate material (1) and integrated with the plate material (1), and the edge (11) of the circular flanged hole is higher than the plane where the plate material (1) is placed. When locating is needed, a pre-punched hole (12) is machined in a preset position of the plate material (1), then the pre-punched hole (12) is machined into the circular flanged hole, and then a locating pin (2) is inserted into the circular flanged hole to carry out omnibearing locating on the plate material (1). The circular flanged hole is a protruding hole relative to the plane of the plate material, so that when the plate material is located, only the locating pin with the same size and shape as the hole needs to be used, omnibearing locating can be carried out, the circular flanged hole cannot deform and be abraded easily, and locating is accurate.
Description
Technical field
The present invention relates to hot-forming field, particularly the comprehensive location structure of plate and localization method in a kind of hot press forming technology.
Background technology
In the production process of hot-forming part, first slab is struck out in hot pressing die the shape of needs, then obtain the product parts sideline profile that needs and room in follow-up laser cutting/repair in stamping die, therefore now create the requirement of hot pressing part secondary clamping location.Further, in the hot pressing part testing process that hot pressing die stamps out, the requirement of the Set and Positioning of hot pressing part in cubing is created equally.
In order to carry out Set and Positioning, usually three kinds of modes are had in prior art, a kind of mode only uses the shape of part own as subsequent handling positioning datum in forming parts process, when post laser cutting or hot pressing part detect in cubing, use at least 6 points contacted with profile that part is fixedly carried out work.The problem of this mode is: reckon without the unstability in part production process, the minor variations of the hot pressing part size that inevitable appearance occurs due to die wear or production environment change in part production process, after there is this kind of situation, post laser cuts/repaiies the instability that the instability will located because of secondary clamping in punching and cubing testing process causes institute's manufactured parts quality.
In forming parts process, use ball stud to mold a little spherical convex closure as subsequent handling main positioning datum during the second way, when post laser cutting or hot pressing part detect in cubing, use the pin of 1 head and spherical convex closure consistent size as main location, and carry out work after using at least 4 points contacted with profile that part is fixing.The problem of this mode is: in the process using the shaping spherical convex closure of ball stud, ball stud is very easy to wear and tear and causes the change of spherical convex closure size, this spherical male wraps in forming process and easily occurs the defects such as cracking, necking down, cracking may produce coming off and becoming waste material of material time comparatively serious, can cause very large harm to the forming blocks surface of mould; No matter be that the spherical convex closure size which kind of reason above causes changes, the instability that subsequent handling secondary clamping is located all can be caused.
The third mode is in forming parts process, adopt cold-stamped breaking cutter technique, the breaking cutter of a V-type is used to stamp out a V-type convex closure as the main positioning datum of subsequent handling, and the tip of the V-type convex closure formed is linear pattern, when post laser cutting or hot pressing part detect in cubing, use the locating piece of 1 head and above-mentioned V-type convex closure consistent size as main location, make part horizontal or longitudinal one wherein individual direction fix, and use at least 5 points contacted with profile part is fixedly carried out work.This kind of mode and the second way similar, but the V-type convex closure of what in the manner, V-type breaking cutter processed in hot pressing part have linear pattern tip only can be used for the main location in hot pressing part some directions in secondary clamping process, can not use as 4 fixing by gross bearings, precision and the practicality of location are lower.
Summary of the invention
goal of the invention:for problems of the prior art, the invention provides comprehensive location structure and the localization method of plate in a kind of hot press forming technology, omnibearing accurate location can be carried out to plate.
technical scheme:the invention provides the comprehensive location structure of plate in a kind of hot press forming technology, described comprehensive location structure is the circular flanging bore of one and the described plate integrative-structure extended in described plate plane, and the free end of described circular flanging bore exceeds described plate place plane.
Present invention also offers the comprehensive localization method of plate in a kind of hot press forming technology, comprise the following steps: S1: the predeterminated position on plate processes pre-punched hole; S2: described pre-punched hole is processed into circular flanging bore, this circular flanging bore is the main positioning datum described plate being carried out to comprehensive location; S3: comprehensive location is carried out to described plate by being inserted by alignment pin in described circular flanging bore.
Preferably, the limit of described circular flanging bore is any one shape following: the vertical edges of integrally-built vertical edges, integrally-built inclined side, many valve structures, the inclined side of many valve structures.
Further, in described S2, use flange pin that described pre-punched hole is processed into described circular flanging bore.
Preferably, the plunger of described flange pin is spheroidal plunger or truncated cone plunger, and shank is cylindrical.
Preferably, the shank of described alignment pin is cylindrical, and the diameter of this shank is slightly less than the shank diameter of described flange pin.
Preferably, described flange pin is made up of high-speed steel.
Preferably, the outer surface of described flange pin is coated with scuff-resistant coating.
Preferably, described scuff-resistant coating is titanium coating.
Preferably, described pre-punched hole is circular port, and the limit of described circular flanging bore is integrally-built vertical edges or integrally-built inclined side; Or described pre-punched hole is multi-petal shape hole, the limit of described circular flanging bore is the vertical edges of many valve structures or the inclined side of many valve structures.
beneficial effect:the comprehensive location structure of the plate in the present invention is the circular flanging bore directly extended in plate plane, because this circular flanging bore is outstanding hole relative to plate plane, when positioning plate, only need to use and both can carry out comprehensive location with the shape in this hole and sizable alignment pin, compared with spherical convex closure of the prior art or V-type convex closure, circular flanging bore can comprehensively be located on the one hand, be not easy formation abrasion on the other hand, the follow-up location to plate is more accurately facilitated.
Accompanying drawing explanation
Fig. 1 is structural representation when circular pre-punched hole coordinates with spheroidal plunger in embodiment 1;
Fig. 2 is the sectional view (after the circular flanging hole forming of integrally-built vertical edges) along AA face in Fig. 1;
Fig. 3 is structural representation when circular pre-punched hole coordinates with truncated cone plunger in embodiment 2;
Fig. 4 is the sectional view (after the circular flanging hole forming of integrally-built inclined side) along BB face in Fig. 2;
Fig. 5 is structural representation when three lobe shape pre-punched holes coordinate with spheroidal plunger in embodiment 3;
Fig. 6 is the side view of spheroidal plunger when three lobe shape pre-punched holes being molded into the circular flanging bore of the vertical edges of three valve structures;
Fig. 7 is the top view of spheroidal plunger when three lobe shape pre-punched holes being molded into the circular flanging bore of the vertical edges of three valve structures;
Fig. 8 is structural representation when three lobe shape pre-punched holes coordinate with truncated cone plunger in embodiment 4;
Fig. 9 is the side view of truncated cone plunger when three lobe shape pre-punched holes being molded into the circular flanging bore of the inclined side of three valve structures.
Detailed description of the invention
Below in conjunction with accompanying drawing, present pre-ferred embodiments is described in detail.
embodiment 1:
Present embodiments provide for the comprehensive location structure of plate in a kind of hot press forming technology and comprehensive localization method thereof, as illustrated in fig. 1 and 2, above-mentioned comprehensive location structure is the protruding circular flanging bore of of extending in plate 1 plane, this circular flanging bore and plate 1 are structure as a whole, and the free end 111 of this circular flanging bore exceeds plate 1 certain distance.
In present embodiment, before shaping above-mentioned circular flanging bore, first on plate 1, a circular pre-punched hole 12 will be processed by predeterminated position, then use and there is spheroidal plunger 31, circular pre-punched hole 12 is processed into above-mentioned circular flanging bore by the flange pin 3 of cylinder shank 33, as shown in Figure 2, the vertical edges 13 of the as a whole structure in limit of this circular flanging bore visible, namely above-mentioned circular flanging bore can be used as main positioning datum plate 1 being carried out to comprehensive location, when needs position plate 1, by identical with shank 33 shape of flange pin 3, and the alignment pin 2 that diameter is slightly less than shank 33 diameter of flange pin 3 inserts in circular flanging bore and carries out comprehensive location to plate 1, generally, shank 21 diameter design of alignment pin 2 is become 0.05 ~ 0.1mm less of shank 33 diameter of flange pin 3.
It is worth mentioning that, in order to strengthen the wearability of above-mentioned flange pin 3, flange pin 3 uses high-speed steel to make, and heat-treats it, and after heat treatment, hardness is greater than HRC55.3, but also can on its plated surface titanium coating to increase wearability further.
Due to F
unload=0.02-0.08f, wherein, F
unloadfor flange pin 3 unloads required power (N) in circular flanging bore, circular pre-punched hole 12 to be molded into the power (N) required for circular flanging bore for flange pin 3 by f;
And f=1.1 π t σ
s(D-d), wherein t is the thickness (mm) of plate 1, σ
sfor the yield strength of plate 1, D is the aperture (mm) of circular flanging bore, and d is the aperture (mm) of circular pre-punched hole 12;
If in present embodiment, plate 1 is 22MnB5 material, then σ s=1200 Mpa, then supposes t=1.2mm, D=16mm, d=10mm, then f=1.1 × 3.14 × 1.2 × 1200 × (16-10)=29842.56(N);
Then F is got
unload=0.05f
Then F
unload=0.05 × 29842.56=1492.1(N).
embodiment 2:
Present embodiment is the further improvement of embodiment 1, main improvements are, use the flange pin 3 with spheroidal plunger 31 in embodiment 1, what mold is the circular flanging bore with integrally-built vertical edges 13, because the contact area inside the limit of this circular flanging bore and between flange pin 3 is comparatively large, unload so be not easy to flange pin 3; And be use the flange pin 3 with truncated cone plunger 32 in present embodiment, the circular flanging bore with integrally-built inclined side 14 molded, because the frictional force inside integrally-built inclined side 14 and between truncated cone plunger 32 is less, so less power can be used to be unloaded by flange pin 3, as shown in Figures 3 and 4.
In addition, present embodiment is identical with embodiment 1, does not repeat herein.
embodiment 3:
Present embodiment is the further improvement of embodiment 1, main improvements are, the limit of the circular flanging bore in embodiment 1 is integrally-built vertical edges 13, there is a defect in this circular flanging bore: when flange pin 3 is laid down by needs time, inwall due to the integrally-built vertical edges 13 of circular flanging bore is close to the shank 33 of flange pin 3, therebetween frictional force is comparatively large, and flange pin 3 is not easy to lay down; And the limit of circular flanging bore in present embodiment is the vertical edges 114 of many valve structures (or zigzag structure, wavy shaped configuration etc.), if pre-punched hole multi-petal shape (or zigzag structure, wavy shaped configuration etc.) pre-punched hole 17 of certain correspondence, contact area between the inwall of the vertical edges 15 of many valve structures and flange pin 3 reduces, frictional force relatively also reduces, and flange pin 3 is laid down relatively easily.
Specifically, for the vertical edges 15 of three lobe shape pre-punched holes 17 and three valve structures, as Fig. 5 shows, first three lobe shape (or Y shape) pre-punched holes 17 are offered at the predeterminated position of plate 1, then the circular flanging bore that use has spheroidal plunger 31, this three lobes shape pre-punched hole pre-punched hole 17 is processed into the vertical edges 15 with three valve structures by the flange pin 3 of cylinder shank 33, as shown in Figures 6 and 7.
Empirically formula, after adopting the circular flanging bore of the vertical edges 15 of three valve structures, f
unload=k × F
unload, wherein k is empirical value, and k=0.2 ~ 0.3, in present embodiment, k gets 0.25, then can obtain f
unload=0.25 × 1492.1=373(N).
Visible, the circular flanging bore of the vertical edges 15 of three valve structures greatly reduces the stripping force required for flange pin 3, reduces Design of Dies difficulty and die cost.
In addition, present embodiment is identical with embodiment 1, does not repeat herein.
embodiment 4:
Present embodiment is the further improvement of embodiment 3, main improvements are, the flange pin 3 with spheroidal plunger 31 is used in embodiment 3, what mold is the circular flanging bore of the vertical edges 15 with many valve structures, contact area between the inwall of the vertical edges 15 of many valve structures and flange pin 3 is still very large, cause frictional force still very large, discharging still not easily, and in present embodiment when shaping circular flanging bore, use the flange pin 3 with truncated cone plunger 32, multi-petal shape pre-punched hole 17 can be molded into the circular flanging bore of the inclined side 16 with many valve structures, because the contact area inside the many valve structures in the inclined side 16 of many valve structures and between the taper surface of truncated cone plunger 32 is less, and frictional force between the inclined side 16 medium dip limit of many valve structures and the taper surface of truncated cone plunger 32 is less, in theory, in present embodiment flange pin 3 from have many valve structures inclined side 16 circular flanging bore in unload required power can than less embodiment 3.
Same for three lobe shape pre-punched holes 17, as Fig. 8, through having the circular flanging bore of the shaping formation inclined side 16 with three valve structures as shown in Figure 9 of the flange pin 3 of truncated cone plunger 32.
In addition, present embodiment is identical with embodiment 3, does not repeat herein.
The respective embodiments described above, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to Spirit Essence of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (10)
1. the comprehensive location structure of plate in a hot press forming technology, it is characterized in that, described comprehensive location structure is the circular flanging bore of one and described plate (1) integrative-structure extended in described plate (1) plane, and the edge (11) of described circular flanging bore exceeds described plate (1) place plane.
2. the comprehensive location structure of plate in hot press forming technology according to claim 1, it is characterized in that, the limit of described circular flanging bore is any one shape following:
The inclined side (16) of integrally-built vertical edges (13), integrally-built inclined side (14), the vertical edges (15) of many valve structures, many valve structures.
3. the comprehensive localization method of plate in hot press forming technology, is characterized in that, comprise the following steps:
S1: the predeterminated position on plate (1) processes pre-punched hole;
S2: described pre-punched hole is processed into circular flanging bore, this circular flanging bore is the main positioning datum described plate (1) being carried out to comprehensive location;
S3: comprehensive location is carried out to described plate (1) by being inserted by alignment pin (2) in described circular flanging bore.
4. the comprehensive localization method of plate in hot press forming technology according to claim 3, is characterized in that, in described S2, uses flange pin (3) that described pre-punched hole is processed into described circular flanging bore.
5. the comprehensive localization method of plate in hot press forming technology according to claim 4, it is characterized in that, the plunger of described flange pin (3) is spheroidal plunger (31) or truncated cone plunger (32), and shank (33) is cylindrical.
6. the comprehensive localization method of plate in hot press forming technology according to claim 4, it is characterized in that, the shank (21) of described alignment pin (2) is for cylindrical, and the diameter of this shank (21) is slightly less than shank (33) diameter of described flange pin (3).
7. the comprehensive localization method of plate in hot press forming technology according to claim 4, it is characterized in that, described flange pin (3) is made up of high-speed steel.
8. the comprehensive localization method of plate in hot press forming technology according to claim 4, is characterized in that, the outer surface of described flange pin (3) is coated with scuff-resistant coating.
9. the comprehensive localization method of plate in hot press forming technology according to claim 8, it is characterized in that, described scuff-resistant coating is titanium coating.
10. the comprehensive localization method of plate in the hot press forming technology according to any one of claim 3 ~ 9, it is characterized in that, described pre-punched hole is circular pre-punched hole (12), and the limit of described circular flanging bore is integrally-built vertical edges (13) or integrally-built inclined side (14); Or,
Described pre-punched hole is multi-petal shape pre-punched hole (17), and the limit of described circular flanging bore is the vertical edges (15) of many valve structures or the inclined side (16) of many valve structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149109.6A CN104741472A (en) | 2015-04-01 | 2015-04-01 | Plate material omnibearing locating structure and method in hot press forming technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149109.6A CN104741472A (en) | 2015-04-01 | 2015-04-01 | Plate material omnibearing locating structure and method in hot press forming technology |
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| CN104741472A true CN104741472A (en) | 2015-07-01 |
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| CN201510149109.6A Pending CN104741472A (en) | 2015-04-01 | 2015-04-01 | Plate material omnibearing locating structure and method in hot press forming technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106078082A (en) * | 2016-06-30 | 2016-11-09 | 浙江乐仁精密工业有限公司 | A kind of panel beating deep hole location strengthening process |
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| JPH05123779A (en) * | 1991-10-30 | 1993-05-21 | Amada Co Ltd | Forming method in punch press |
| CN101264498A (en) * | 2007-03-13 | 2008-09-17 | 丰田铁工株式会社 | Plate-shaped workpiece positioning structure for hot press forming |
| JP2012236199A (en) * | 2011-05-10 | 2012-12-06 | Waitekku:Kk | Positioning structure of workpiece to be pressed and press working apparatus |
| CN203459514U (en) * | 2013-05-23 | 2014-03-05 | 上海汇众汽车制造有限公司 | Subsequent fine-positioning die structure for drawing parts |
| CN203887087U (en) * | 2014-03-26 | 2014-10-22 | 富士瑞鹄技研（芜湖）有限公司 | Metal plate part positioning mechanism |
| CN204545195U (en) * | 2015-04-01 | 2015-08-12 | 上海凌云汽车模具有限公司 | The comprehensive location structure of plate in hot press forming technology |
-
2015
- 2015-04-01 CN CN201510149109.6A patent/CN104741472A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05123779A (en) * | 1991-10-30 | 1993-05-21 | Amada Co Ltd | Forming method in punch press |
| CN101264498A (en) * | 2007-03-13 | 2008-09-17 | 丰田铁工株式会社 | Plate-shaped workpiece positioning structure for hot press forming |
| JP2012236199A (en) * | 2011-05-10 | 2012-12-06 | Waitekku:Kk | Positioning structure of workpiece to be pressed and press working apparatus |
| CN203459514U (en) * | 2013-05-23 | 2014-03-05 | 上海汇众汽车制造有限公司 | Subsequent fine-positioning die structure for drawing parts |
| CN203887087U (en) * | 2014-03-26 | 2014-10-22 | 富士瑞鹄技研（芜湖）有限公司 | Metal plate part positioning mechanism |
| CN204545195U (en) * | 2015-04-01 | 2015-08-12 | 上海凌云汽车模具有限公司 | The comprehensive location structure of plate in hot press forming technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106078082A (en) * | 2016-06-30 | 2016-11-09 | 浙江乐仁精密工业有限公司 | A kind of panel beating deep hole location strengthening process |
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Application publication date: 20150701 |