CN201791797U

CN201791797U - Roll bending mold for steel ladder step plate

Info

Publication number: CN201791797U
Application number: CN2010205381774U
Authority: CN
Inventors: 何亚军; 靳松云; 于振超; 周志飞
Original assignee: China No15 Metallurgical Construction Co Ltd
Current assignee: China No15 Metallurgical Construction Co Ltd
Priority date: 2010-09-21
Filing date: 2010-09-21
Publication date: 2011-04-13
Anticipated expiration: 2020-09-21

Abstract

The utility model relates to bending machining of a steel structure component, in particular to a roll bending mold for a steel ladder step plate. The roll bending mold is provided with a steel template and is characterized in that: a roll bending groove and a hem positioning groove which are arranged in parallel are respectively reserved on the upper plate surface of the steel template; and two lining plates are arranged on the two sides of the roll bending groove and the hem positioning groove of the steel template. By using the roll bending mold, the problems of bending angle deformation stress rebound and high machining cost in the bending machining of the steel ladder step plate are solved; and the roll bending mold is mainly used for remolding a bending machining tool of a component.

Description

A kind of steel ladder step plate rolls curved mould

(1). technical field: the utility model relates to the Bending Processing of steel structure member, and especially a kind of steel ladder step plate rolls curved mould.

(2). background technology: the flanging of steel ladder step plate processing in the engineering, machining shape has Z type and door two kinds on type (seeing Fig. 4, Fig. 5 for details), conventional processing method is to utilize pressing and bending machine and Bending Mould to carry out the punching press folding, the problem that this kind processing method exists is: the bending angle behind the blank punching press flanging exists the distortional stress resilience, and workpiece is big more, machining sheet is thick more, and difficulty of processing is just big more, and processing cost is also high more.

(3). summary of the invention: the purpose of this utility model is exactly will solve steel ladder step plate punching press flanging to process existing bending angular deformation stress resilience and the high problem of processing cost, provides a kind of steel ladder step plate to roll curved mould.

Concrete scheme of the present utility model is: a kind of steel ladder step plate rolls curved mould, it has steel form, it is characterized in that: the upper face of steel form be respectively equipped be arranged in parallel roll a curved groove and flanging groove that falls, be furnished with two lining planks in the curved groove of rolling of a steel form and flanging groove flute length both sides that fall.

The fall last plane of a groove groove width side and steel form of curved groove and flanging of rolling described in the utility model is 65-85 inclinations angle of spending.

Groove width of rolling curved groove described in the utility model is than fall groove width≤5-8 millimeter of a groove of flanging, and the suitable for reading of twice groove all is rounded down.

Operation principle of the present utility model is (seeing Fig. 6 for details): the utility model is to utilize three-roller bending machine to carry out the curved processing of rolling of steel ladder step plate, and three-roller bending machine is installed on the ground; First being processed, gap between the three-roller bending machine 7 up-down rollers buses is adjusted into identical with the thickness that rolls curved mould 9, and the front end that will roll curved mould 9 is sent between the three-roller bending machine 7 up-down rollers buses, processed blank 8 is inserted into rolls rolling in the curved groove 3 in the curved mould 9, after preparation is ready, start three-roller bending machine 7, under the frictional force effect of two friction rollers in three-roller bending machine 7 lower ends, roll curved mould 9 and carry the tangential direction motion of blank 8 to the friction roller rotation, when blank 8 moves to three-roller bending machine 7 top roll places, be subjected to the obstruction of top roll, blank 8 is arrived again to rolling the thrust that transmit in curved groove 3 places simultaneously, roll under the thrust double action at curved groove 3 places resistance and lower end at top roll, blank 8 has produced the bending distortion at the place suitable for reading of rolling curved groove 3, three-roller bending machine 7 continues to move back and forth, utilize the distortional stress of roll extrusion power elimination blank 8 bending parts of up-down rollers, after treating the rolling bending edge and machine of blank 8 one ends, withdraw from and roll curved mould 9, the other end of blank 8 is inserted into rolls in the curved groove 3, repeat above-mentioned process, after the two ends of blank 8 are rolled bending edge and all finished processing, unload the blank workpiece, that has finished step plate rolls bending edge processing.

The utility model is compared with original step plate hemming processing method, change into by punching press flanging processing and to roll bending edge processing, changed into by diel and to roll bending mould, its processing cost reduces greatly, and the roll extrusion power of rolling curved processing has simultaneously also been eliminated the problem of the distortional stress resilience of folding corner; The utility model deblocked preferably corner distortional stress resilience of the existing folding of steel ladder step plate Bending Processing and the high problem of processing cost, the utility model also can be used for the curved processing of rolling of other steel structure member.

Described in the utility model to roll curved groove be to be used to roll the insertion location that bending edge adds the blank in man-hour, and what can be used for Z type or door type step plate rolls bending edge processing; A flanging described in the utility model groove that falls is the position that freely falls of the completed end bending edges of step plate when being used to process a type step plate.

(4). description of drawings:

Fig. 1: the utility model structural profile master looks schematic diagram;

Fig. 2: the utility model structure schematic top plan view;

Fig. 3: schematic diagram is looked on the utility model structural profile right side;

Fig. 4: Z type step plate schematic diagram;

Fig. 5: door type step plate schematic diagram;

Fig. 6: application note schematic diagram;

Among the figure: 1-steel form, 2-lining plank, 3-roll curved groove, 4-flanging groove that falls, 5-Z type step plate, 6-door type step plate, 7-three-roller bending machine, 8-blank, 9--roll curved mould.

(5). the specific embodiment:

Embodiment (seeing Fig. 1, Fig. 2, Fig. 3 for details): a kind of steel ladder step plate rolls curved mould, it has steel form 1, particularly: the upper face of steel form 1 be respectively equipped be arranged in parallel roll curved groove 3 and the flanging groove 4 that falls, the flute length of the twice groove of present embodiment is 1200 millimeters, groove depth is 50 millimeters, the groove width of rolling curved groove 3 is 9 millimeters, the fall groove width of a groove 4 of flanging is 16 millimeters, roll the fall last plane of a groove 4 groove width sides and steel form 1 of curved groove 3 and flanging and be 85 inclinations angle of spending, and the suitable for reading of twice groove all is rounded down; Be furnished with two lining planks 2 in the curved groove 3 of rolling of steel form 1 an and flanging groove flute length both sides that fall.

Application note (seeing Fig. 6 for details): have three-roller bending machine 7 and roll curved mould 9, described three-roller bending machine 7 is installed on the ground; And the gap between the up-down rollers bus of three-roller bending machine 7 is adjusted into identical with the thickness that rolls curved mould 9, the described front end that rolls curved mould 9 is between three-roller bending machine 7 up-down rollers, processed blank 8 is inserted into rolls rolling in the curved groove 3 (seeing Fig. 1 for details) in the curved mould 9, after preparation is ready, start three-roller bending machine 7, under the frictional force effect of two friction rollers in three-roller bending machine 7 lower ends, roll curved mould 9 and carry the tangential direction motion of blank 8 to the friction roller rotation, when blank 8 moves to three-roller bending machine 7 top roll places, be subjected to the obstruction of top roll, blank 8 is arrived again to rolling the thrust that transmit in curved groove 3 places simultaneously, roll under the thrust double action at curved groove 3 places resistance and lower end at top roll, blank 8 has produced the bending distortion at the place suitable for reading of rolling curved groove 3, three-roller bending machine 7 continues to move back and forth, utilize the distortional stress of roll extrusion power elimination blank 8 bending parts of up-down rollers, after treating the rolling bending edge and machine of blank 8 one ends, withdraw from and roll curved mould 9, the other end of blank 8 is inserted into rolls in the curved groove 3, repeat above-mentioned process, after the two ends of blank 8 are rolled bending edge and are all finished processing, unload the blank workpiece, finished the bending edge that rolls of step plate and processed.

Present embodiment can be processed Z type step plate, also can process a type step plate; The completed end bending edges of step plate falls the position in flanging falls a groove during processing door type step plate.

Claims

1. a steel ladder step plate rolls curved mould, and it has steel form, it is characterized in that: the upper face of steel form be respectively equipped be arranged in parallel roll a curved groove and flanging groove that falls, be furnished with two lining planks in the curved groove of rolling of a steel form and flanging groove flute length both sides that fall.

2. a kind of steel ladder step plate according to claim 1 rolls curved mould, it is characterized in that: described the fall last plane of a groove groove width side and steel form of curved groove and flanging of rolling is 65-85 inclinations angle of spending.

3. a kind of steel ladder step plate according to claim 1 rolls curved mould, it is characterized in that: described groove width of rolling curved groove is than fall groove width≤5-8 millimeter of a groove of flanging, and the suitable for reading of twice groove all is rounded down.