技术领域technical field
本发明涉及折弯构件及其成型装备，尤其涉及了一种厚钢板小半径折弯构件及其挤压式成型装备。The invention relates to a bending component and its forming equipment, in particular to a thick steel plate small-radius bending component and its extrusion forming equipment.
背景技术Background technique
目前，钢板厚度越厚且转角半径越小，转角时外侧拉伸比也越大，转角成型时发生缺陷概率越大，钢板越厚，转弯半径越小，制作难度越高。但实际结构制造中，又需要采用厚钢板，且转角半径较小的成型。传统的转角成型均采用自由成型法，一般沿钢板中心线，呈外侧受拉，内侧受压状态，因厚钢板不能实现理想的塑性变形，不可避免的发生钢板外侧形成纤维状裂纹等等成型缺陷。At present, the thicker the steel plate and the smaller the corner radius, the greater the outside stretch ratio when cornering, and the greater the probability of defects during corner forming. The thicker the steel plate, the smaller the turning radius, and the more difficult it is to manufacture. However, in the actual structural manufacturing, it is necessary to use thick steel plates and form them with small corner radii. The traditional corner forming adopts the free forming method, generally along the center line of the steel plate, in a state of tension on the outside and compression on the inside, because the thick steel plate cannot achieve ideal plastic deformation, forming defects such as fibrous cracks on the outside of the steel plate will inevitably occur .
发明内容Contents of the invention
本发明针对现有技术中钢板厚度越厚且转角半径越小，转角时外侧拉伸比也越大，转角成型时发生缺陷概率越大，钢板越厚，转弯半径越小，制作难度越高等缺点，提供了一种采用厚的外衬板或转角背板，设置约束机架，将钢板的外边长度约束，通过外边固定内边压迫的方法制成转角半径小于钢板厚度14.5倍甚至6倍的转角的厚钢板小半径折弯构件及其挤压式成型装备。The present invention aims at the disadvantages in the prior art that the thicker the steel plate is, the smaller the corner radius is, the larger the outer stretch ratio is at the corner, the greater the defect probability is when the corner is formed, the thicker the steel plate is, the smaller the turning radius is, and the more difficult it is to manufacture. , provides a method of using a thick outer liner or corner backboard, setting a constraint frame, constraining the length of the outer edge of the steel plate, and fixing the inner edge of the outer edge to form a corner with a corner radius smaller than 14.5 times or even 6 times the thickness of the steel plate The thick steel plate small radius bending member and its extrusion forming equipment.
为了解决上述技术问题，本发明通过下述技术方案得以解决：In order to solve the above technical problems, the present invention is solved through the following technical solutions:
厚钢板小半径折弯构件，折弯构件的转角内半径r，厚度为t，折弯构件的转角内半径r≤14.5t，钢板厚度t≥4mm。Thick steel plate small-radius bending member, the inner radius of the corner of the bent member is r, the thickness is t, the inner radius of the corner of the bent member is r≤14.5t, and the thickness of the steel plate is t≥4mm.
作为优选，所述的折弯构件的钢板转角在成型后外侧的伸长率小于（r+t）/（r+0.75t）。伸长率为折弯构件的折弯部分，即从转角切点到另一端切点的部分，在折弯后的实际长度与未折弯前的长度之比，传统产品的伸长率为（r+t）/（r+0.5t），由于钢板的外端未受到约束，因此伸长的长度较长，而钢板伸长的长度越长，其转角部位越容易产生撕裂的情况；而实际生产中，如果使折弯构件折弯部位尽量少产生缺陷，则只有通过降低伸长率的方式，伸长率越小，才能做出小半径厚板的合格产品。Preferably, the elongation of the outer side of the corner of the steel plate of the bent member after forming is less than (r+t)/(r+0.75t). The elongation is the ratio of the bent part of the bent member, that is, the part from the tangent point of the corner to the tangent point of the other end, the actual length after bending and the length before bending. The elongation of traditional products is ( r+t)/(r+0.5t), since the outer end of the steel plate is not constrained, the elongation length is longer, and the longer the elongation length of the steel plate, the easier it is to tear at the corner; and In actual production, if the bending part of the bending member has as few defects as possible, only by reducing the elongation rate, the smaller the elongation rate, the qualified product of small radius thick plate can be produced.
作为优选，所述的折弯构件的转角半径r与直线段连接部分，设有过渡区和反弹区，由过渡区至反弹区的半径为从无穷大至r渐变。Preferably, the connecting portion between the corner radius r of the bending member and the straight line section is provided with a transition zone and a rebound zone, and the radius from the transition zone to the rebound zone gradually changes from infinity to r.
作为优选，所述的折弯构件的转角内半径r≤6t，钢板厚度t≥8mm。Preferably, the bending member has an inner corner radius r≤6t, and a steel plate thickness t≥8mm.
作为优选，所述的折弯构件为钢板冷弯而成，冷弯转角有一个以上。Preferably, the bending member is formed by cold-bending a steel plate, and there is more than one cold-bending corner.
挤压式成型装备，包括转角背板、转弯履带、卡位固定装置及压力装置，所述的转弯履带的二侧装有转角背板，转角背板上装有卡位固定装置，压力装置为液压机。Extrusion molding equipment, including a corner back plate, a turning track, a locking device and a pressure device. The two sides of the turning track are equipped with a corner back plate, and the corner back plate is equipped with a locking and fixing device. The pressure device is a hydraulic press .
作为优选，所述的转角背板的厚度大于折弯构件的厚度。转角背板的强度、厚度均大于折弯构件。Preferably, the thickness of the corner backboard is greater than the thickness of the bent member. The strength and thickness of the corner backboard are greater than that of the bent member.
作为优选，所述的钢板设置在转角背板上，位于两侧卡位固定之间。挤压式成型装备内放置有需转角的钢板。Preferably, the steel plate is arranged on the corner back panel, and is located between the clamping positions on both sides. Steel plates that need to be cornered are placed in the extrusion forming equipment.
作为优选，所述转角背板上有卡齿，卡位固定装置与转角背板上的卡齿连接。卡位固定装置之间的间距为可调，其距离为钢板下料尺寸，钢板下料的尺寸按照伸长率（r+t）/（r+0.75t）计算而得。Preferably, there are locking teeth on the corner backboard, and the locking position fixing device is connected with the locking teeth on the corner backboard. The distance between the clamping and fixing devices is adjustable, and the distance is the blanking size of the steel plate, and the blanking size of the steel plate is calculated according to the elongation (r+t)/(r+0.75t).
作为优选，所述的压力装置位于转角背板的上方，钢板设置在压力装置与转角背板之间。厚钢板小半径折弯构件其挤压式成型装备，压力装置作用于挤压式成型装备，将钢板按规定角度折弯。Preferably, the pressure device is located above the corner backboard, and the steel plate is arranged between the pressure device and the corner backboard. The extrusion-type forming equipment of the small-radius bending component of thick steel plate, the pressure device acts on the extrusion-type forming equipment, and bends the steel plate according to the specified angle.
本发明由于采用了以上技术方案，具有显著的技术效果：本发明通过采用厚的外衬板或转角背板，设置约束机架，将钢板的外边长度约束，通过外边固定内边压迫的方法制成转角半径小于钢板厚度14.5倍甚至6倍的转角。Due to the adoption of the above technical solutions, the present invention has remarkable technical effects: the present invention adopts a thick outer lining board or a corner backboard, sets a constraining frame, constrains the length of the outer edge of the steel plate, and presses the inner edge by fixing the outer edge. Form a corner with a corner radius smaller than 14.5 times or even 6 times the thickness of the steel plate.
附图说明Description of drawings
图1是本发明中折弯构件的结构示意图。Fig. 1 is a structural schematic diagram of a bent member in the present invention.
图2是本发明中挤压式成型装备钢板折弯前的结构示意图。Fig. 2 is a structural schematic view of the steel plate of the extrusion forming equipment before bending in the present invention.
图3是本发明中挤压式成型装备钢板折弯后的结构示意图。Fig. 3 is a structural schematic diagram of the steel plate of the extrusion forming equipment in the present invention after bending.
以上附图中各数字标号所指代的部位名称如下：其中1—折弯构件、2—转角背板、3—转弯履带、4—卡位固定装置、5—压力装置11—钢板。The names of the parts indicated by the numbers in the above drawings are as follows: 1—bending member, 2—corner back plate, 3—turning track, 4—fixing device, 5—pressure device, 11—steel plate.
具体实施方式detailed description
下面结合附图1至图3与实施例对本发明作进一步详细描述：Below in conjunction with accompanying drawing 1 to Fig. 3 and embodiment the present invention is described in further detail:
实施例1Example 1
厚钢板小半径折弯构件，如图1至图3所示，折弯构件1的转角内半径r，厚度为t，折弯构件1的转角内半径r≤14.5t，钢板厚度t≥4mm。折弯构件1的转角内半径r=13t，钢板厚度t=5mm。Thick steel plate small radius bending member, as shown in Figure 1 to Figure 3, the corner inner radius r of the bending member 1, the thickness is t, the inner corner radius r of the bending member 1 is ≤14.5t, and the steel plate thickness t≥4mm. The inner radius of the corner of the bent member 1 is r=13t, and the thickness of the steel plate is t=5mm.
折弯构件1的钢板转角在成型后外侧的伸长率小于（r+t）/（r+0.75t）。伸长率为折弯构件1的折弯部分，即从转角切点到另一端切点的部分，在折弯后的实际长度与未折弯前的长度之比，传统产品的伸长率为（r+t）/（r+0.5t），由于钢板的外端未受到约束，因此伸长的长度较长，而钢板伸长的长度越长，其转角部位越容易产生撕裂的情况；而实际生产中，如果使折弯构件1折弯部位尽量少产生缺陷，则只有通过降低伸长率的方式，伸长率越小，才能做出小半径厚板的合格产品。The elongation of the outer side of the corner of the steel plate of the bent member 1 after forming is less than (r+t)/(r+0.75t). The elongation is the ratio of the actual length of the bent part of the bent member 1, that is, the part from the tangent point of the corner to the tangent point of the other end, after bending to the length before bending. The elongation of traditional products is (r+t)/(r+0.5t), since the outer end of the steel plate is not restrained, the elongated length is longer, and the longer the elongated length of the steel plate, the easier it is to tear at the corner; However, in actual production, if the bending part of the bending member 1 has as few defects as possible, then only by reducing the elongation rate, the smaller the elongation rate, the qualified product of a small-radius thick plate can be produced.
折弯构件1的转角半径r与直线段连接部分，设有过渡区和反弹区，由过渡区至反弹区的半径为从无穷大至r渐变。The connecting portion between the corner radius r of the bending member 1 and the straight line section is provided with a transition area and a rebound area, and the radius from the transition area to the rebound area gradually changes from infinity to r.
挤压式成型装备，包括转角背板2、转弯履带3、卡位固定装置4及压力装置5，所述的转弯履带3的二侧装有转角背板2，转角背板2上装有卡位固定装置4，压力装置5为液压机。Extrusion molding equipment, including a corner back plate 2, a turning track 3, a locking device 4 and a pressure device 5, the corner back plate 2 is installed on both sides of the turning track 3, and the corner back plate 2 is equipped with a locking position The fixing device 4 and the pressure device 5 are hydraulic presses.
转角背板2的厚度大于折弯构件1的厚度。转角背板2的强度、厚度均大于折弯构件1。钢板设置在转角背板2上，位于两侧卡位固定4之间。The thickness of the corner back panel 2 is greater than that of the bent member 1 . The strength and thickness of the corner backboard 2 are greater than that of the bent member 1 . The steel plate is arranged on the corner backboard 2 and is located between the fixing positions 4 on both sides.
转角背板2上有卡齿，卡位固定装置4与转角背板2上的卡齿连接。位于钢板11两侧的卡位固定装置4之间的间距为可调，卡位固定装置4之间的间距确定后通过卡齿与转角背板2卡死，卡位固定装置4之间的距离为钢板11下料尺寸，钢板11下料的尺寸按照伸长率（r+t）/（r+0.75t）计算而得。There are latching teeth on the corner backboard 2 , and the clip fixing device 4 is connected with the latching teeth on the corner backboard 2 . The distance between the clamping fixing devices 4 located on both sides of the steel plate 11 is adjustable. After the spacing between the clamping fixing devices 4 is determined, the clamping teeth and the corner back plate 2 are locked. The distance between the clamping fixing devices 4 is the blanking size of the steel plate 11, and the blanking size of the steel plate 11 is calculated according to elongation (r+t)/(r+0.75t).
压力装置5位于转角背板2的上方，钢板11设置在压力装置5与转角背板2之间。厚钢板小半径折弯构件其挤压式成型装备，压力装置作用于挤压式成型装备，将钢板按规定角度折弯。The pressure device 5 is located above the corner backboard 2 , and the steel plate 11 is arranged between the pressure device 5 and the corner backboard 2 . The extrusion-type forming equipment of the small-radius bending component of thick steel plate, the pressure device acts on the extrusion-type forming equipment, and bends the steel plate according to the specified angle.
实施例2Example 2
本实施例与实施例1的区别在于：折弯构件1的转角内半径r≤6t，钢板厚度t≥8mm。折弯构件1为钢板冷弯而成，冷弯转角有一个以上。折弯构件1的转角内半径r=4t，t=12mm，冷弯转角为2个。The difference between this embodiment and Embodiment 1 lies in that: the inner radius of the corner of the bending member 1 is r≤6t, and the thickness of the steel plate is t≥8mm. The bending member 1 is formed by cold bending of a steel plate, and there is more than one cold bending corner. The inner radius of the corner of the bent member 1 is r=4t, t=12mm, and there are two cold-formed corners.
总之，以上所述仅为本发明的较佳实施例，凡依本发明申请专利范围所作的均等变化与修饰，皆应属本发明专利的涵盖范围。In a word, the above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the patent of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310307097.6ACN103499009B (en) | 2013-07-18 | 2013-07-18 | Small-radius bending member of thick steel plate and its extrusion forming equipment |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310307097.6ACN103499009B (en) | 2013-07-18 | 2013-07-18 | Small-radius bending member of thick steel plate and its extrusion forming equipment |
| Publication Number | Publication Date |
|---|---|
| CN103499009A CN103499009A (en) | 2014-01-08 |
| CN103499009Btrue CN103499009B (en) | 2016-08-10 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310307097.6AActiveCN103499009B (en) | 2013-07-18 | 2013-07-18 | Small-radius bending member of thick steel plate and its extrusion forming equipment |
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| CN (1) | CN103499009B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214216A (en)* | 2017-07-05 | 2017-09-29 | 马鞍山市佳士达锻压机床厂 | A kind of engine carries the numerical control bender of temperature control defencive function |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4233139A1 (en)* | 1991-09-14 | 1994-04-07 | Eurocopter Deutschland | Moulding flat honeycomb sheet e.g. as core of sandwich material - by placing it on suitably cut e.g. metal plate, enveloping assembly twice in air-tight film, vacuum forming to shape and curing in oven |
| US5956991A (en)* | 1998-08-19 | 1999-09-28 | Tseng; Shao-Chien | Forming device for shaped decoration panels |
| EP0951984A1 (en)* | 1998-04-24 | 1999-10-27 | R + S STANZTECHNIK GmbH | Method and apparatus for producing multilayered parts |
| JP2000229352A (en)* | 1999-02-12 | 2000-08-22 | Hitachi Ltd | Laminate bending method and laminated material |
| JP2000317525A (en)* | 1999-05-14 | 2000-11-21 | Shinko Kinzoku Kogyo Kk | Press bending die |
| EP2113316A1 (en)* | 2008-04-28 | 2009-11-04 | F.W. Brökelmann Aluminiumwerk GmbH & Co.KG | Bending device |
| CN202621714U (en)* | 2012-04-27 | 2012-12-26 | 山东铭润电站装备有限公司 | Reactor oil tank wall pressing arc die |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6866180B2 (en)* | 2003-02-18 | 2005-03-15 | Rockwell Scientific Licensing, Llc | Thick-section metal forming via friction stir processing |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4233139A1 (en)* | 1991-09-14 | 1994-04-07 | Eurocopter Deutschland | Moulding flat honeycomb sheet e.g. as core of sandwich material - by placing it on suitably cut e.g. metal plate, enveloping assembly twice in air-tight film, vacuum forming to shape and curing in oven |
| EP0951984A1 (en)* | 1998-04-24 | 1999-10-27 | R + S STANZTECHNIK GmbH | Method and apparatus for producing multilayered parts |
| US5956991A (en)* | 1998-08-19 | 1999-09-28 | Tseng; Shao-Chien | Forming device for shaped decoration panels |
| JP2000229352A (en)* | 1999-02-12 | 2000-08-22 | Hitachi Ltd | Laminate bending method and laminated material |
| JP2000317525A (en)* | 1999-05-14 | 2000-11-21 | Shinko Kinzoku Kogyo Kk | Press bending die |
| EP2113316A1 (en)* | 2008-04-28 | 2009-11-04 | F.W. Brökelmann Aluminiumwerk GmbH & Co.KG | Bending device |
| CN202621714U (en)* | 2012-04-27 | 2012-12-26 | 山东铭润电站装备有限公司 | Reactor oil tank wall pressing arc die |
| Publication number | Publication date |
|---|---|
| CN103499009A (en) | 2014-01-08 |
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