CN105817504B - The bending method of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production - Google Patents
The bending method of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production Download PDFInfo
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- CN105817504B CN105817504B CN201610371880.2A CN201610371880A CN105817504B CN 105817504 B CN105817504 B CN 105817504B CN 201610371880 A CN201610371880 A CN 201610371880A CN 105817504 B CN105817504 B CN 105817504B
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- bending
- plate
- lower mould
- box side
- wagon box
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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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The bending method of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production；It is that Bending Processing shaping is carried out to plate by three times using special upper and lower mould, the special upper mould includes die head and die shank, die shank is connected with die head by connecting seat, some threaded adjusting leading screws are installed on connecting seat, the front end of leading screw is equipped with roller mount, roller mount and is provided with some rollers；The special lower mould has die holder, and the upper surface of die holder is formed with bending " V " type groove；Above-mentioned upper and lower mould is installed on numerical control bender；Then through blanking → determine at three bending part → the first bending → demoulding shaping at bending → the second at bending → 3rd；The problems such as present invention solves the existing U-shaped assembled high processing costs of bucket dumper wagon box side plate welding, complex process, low production efficiency, is mainly used for the bending and forming processing of U-shaped bucket dumper wagon box side plate.
Description
Technical field
The present invention relates to machine components process technology, the specifically U-shaped bucket dumper wagon box side plate of high-strength steel sheet production is different
The bending method of shape part.
Background technology
The structure of the wagon box side plate of U-shaped bucket dumper is referring to Fig. 1, and its front end is the quadrilateral structure of a closure, and rear portion is
The one straight tailgate of length, one of the process technology method of existing wagon box side plate is to be bent into two parts, referring to Fig. 2,
Then welding is completed, and it has the disadvantage：Cumbersome, low production efficiency, welding cost is high, and technical operation requires high,
Product yield is influenceed, totally unsightly.For this kind of there is closure frame-shaped construction also to have two mode of production using method,
It is the opening part for being first bent into definite shape（Such as Fig. 3）, then repeatedly pressed on flat-die again（Referring to Fig. 4-7）, utilize
The elasticity of steel, plastification, reach the closure effect of part opening.But second method is for high-strength steel sheet, resilience
Amount is larger, is extremely difficult to the closure of part, its process very complicated, dangerous high, inefficiency, and part shape structure is not
Rule, uniformity is poor, can hardly reach that sealing is required.For using the U-shaped bucket dumper wagon box side plate of high-strength steel sheet production
It is particularly true.
The content of the invention
Present invention aim to solve existing high-strength steel sheet production wagon box side plate using method two not realizing frame
Shape is closed, and using the cumbersome of method one, productivity ratio is low, and production cost is high, it is overall unsightly the problems such as.A kind of high intensity is provided
The bending method of the U-shaped bucket dumper wagon box side plate shaped piece of Plate Production.
The present invention concrete scheme be：A kind of bending of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production
Method, is to carry out Bending Processing to plate by three times using special upper and lower mould, it is characterized in that：The special upper mould bag
Die head and die shank are included, die shank is connected with die head by connecting seat, some threaded adjusting screw mandrels, screw mandrel are installed on connecting seat
Front end roller mount is housed, some rollers are installed in roller mount；The special lower mould has die holder, the upper surface system of die holder
There is bending " V " type groove；Above-mentioned upper and lower mould is installed on stamping machine；Then Bending Processing is carried out as follows：
The first step：High-strength steel sheet is taken, according to product design measure；
Second step：The first bending part, the second folding are determined according to wagon box side plate sheet-shaped design successively from the front to the back on plate
Crook, the 3rd bending part；
3rd step：Plate is put between upper and lower mould, mould die head is directed at the bending part of plate first and carries out bending, fit
The amount of spending bending, makes plate depart from after upper and lower mould, returns to design bending angle；
4th step：It in same upper and lower mould, will be pushed away before plate, carry out the 3rd bending part that mould die head is directed at plate
Bending, appropriateness excess bending, makes plate depart from after upper and lower mould, returns to design bending angle；
5th step：In same set of upper and lower mould, plate is retreated, mould die head is directed at the second bending part, and make plate
The top mould connecting seat of long tail end roller side arrangement, move forward and backward roller according to the coefficient of elasticity adjusting screw of plate
Correct position, so as to reach desirable flexural variable during plate bending, starts numerical control bender, carries out bending, and appropriate excessive folding
Curved, the long tail end of plate abuts in flexural deformation therewith on roller；Shaping plate, the long tail end of plate are removed from upper and lower mould
Recover straight under elastic reaction, and plate leading portion because of three bending quadrangularlies, the head foremost of plate and plate
Middle part is bonded to each other under elastic reaction.
Heretofore described high-strength steel sheet tensile strength=1350MPa。
" V " type groove angle on heretofore described lower mould is 30 °.
In heretofore described upper mould, the top of die head is provided with the T-shaped on T-slot, die head for T-shaped structure on connecting seat
Structure is integrated with the T-slot mating connection dress on connecting seat；Some bolts hole are provided with connecting seat, using bolt from T-shaped
It is connected in groove through bolt hole with die shank, die shank is filled with connecting seat and be integrated.
Numerical control bender is installed on equipped with demoulding block in the present invention, demoulding block is the tail end arrangement of correspondence workpiece.
The present invention makes full use of the elasticity of high-strength steel sheet, and the part for making part interference with Bending Mould produces enough
Elastic deformation, is deformed from the bending without influenceing other positions；Treat after the completion of whole bendings, it is restored to the original state by elasticity again,
The closure of part opening is reached, the disposable bending for completing closure part.
Compared with prior art, the beneficial effects of the invention are as follows：The body formula bending and forming of closure part is realized, is reduced
Time become a useful person of former welding, and part shape rule, uniformity it is good, without danger, efficiency high（It is the 8-10 of commonsense method
Times）, the demand produced in enormous quantities can be met；Mould structure is simple, with low cost, and versatility is high.
Brief description of the drawings
Fig. 1 is the front view of U-shaped bucket dumper wagon box side plate；
Fig. 2 is the welding structure principle front view of existing method one；
Fig. 3-7 is the bending and forming Principle of Process schematic diagram of existing method two；
Fig. 8 is upper die structure front view；
Fig. 9 is upper die structure left view；
Figure 10 is the operation chart of the step of the inventive method bending step the 3rd；
Figure 11 is the operation chart of the step of the inventive method bending step the 4th；
Figure 12 is the operation chart of the step of the inventive method bending step the 5th；
Figure 13-15 is the stripping operation schematic diagram in the step of inventive method bending step the 5th；
Figure 16 is the assembling structure schematic diagram of die head, die shank and connecting seat.
In figure：1- wagon box side plates, 2- die shanks, 3- connecting seats, 4- regulation screw mandrels, 5- rollers, 6- roller mounts, 7- die heads, 8-
" V " type groove, 9- die holders, 10- demoulding blocks, 11- bolts, 12- bolts hole, 13-T shape grooves, 14-T shape structures, the bendings of 15- first
Place, the bending parts of 16- second, the bending parts of 17- the 3rd.
Embodiment
Producing the U-shaped bending method for struggling against the shaped piece of dumper wagon box side plate 1 using high-strength steel sheet is：Make first a set of
Upper and lower mould, the special upper mould includes（Referring to Fig. 8）There are die head 7 and die shank 2, die shank 2 is connected with die head 7 by connecting seat 3
Connect, some threaded adjusting screw mandrels 4 are installed on connecting seat 3, the front end of screw mandrel, which is equipped with roller mount 6, roller mount 6, is provided with one
Arrange five rollers 5；The special lower mould（Referring to Figure 12）With die holder 9, the upper surface of die holder 9 is formed with bending " V " type groove 8；
Above-mentioned upper and lower mould is installed on numerical control bender；Then Bending Processing is carried out as follows：
The first step：High-strength steel sheet is taken, according to product design measure；
Second step：The first bending part 15, second are determined according to the sheet-shaped design of wagon box side plate 1 successively from the front to the back on plate
Bending part 16, the 3rd bending part 17（Referring to Fig. 1）；
3rd step：Plate is put between upper and lower mould, mould die head 7 is directed at the bending part of plate first and carries out bending, fit
The amount of spending bending, makes plate depart from after upper and lower mould, returns to design bending angle；（Referring to Figure 10）
4th step：It in same upper and lower mould, will be pushed away before plate, enter the 3rd bending part that mould die head 7 is directed at plate
Row bending, appropriateness excess bending, makes plate depart from after upper and lower mould, returns to design bending angle；（Referring to Figure 11）
5th step：In same set of upper and lower mould, plate is retreated, mould die head is directed at the second bending part,（Referring to figure
12）And make the side of roller 5 arrangement of the top mould connecting seat 3 of long tail end of plate, adjusting screw mandrel 4 according to the coefficient of elasticity of plate makes
Roller 5 moves forward and backward correct position, so as to reach desirable flexural variable during plate bending, starts numerical control bender, is rolled over
Curved, and appropriate excessive bending, the long tail end of plate abuts in flexural deformation therewith on roller 5；Forming board is removed from upper and lower mould
Material（Referring to Figure 13-15）, the long tail end of plate recovers straight under elastic reaction, and the leading portion of plate is bent into four because of three times
Side shape, the head foremost of plate with the middle part of plate under elastic reaction it is bonded to each other,（Referring to Figure 15）Ultimately form overall
Wagon box side board structure.
High-strength steel sheet tensile strength described in the present embodiment=1350MPa。
The top of die head 7 described in the present embodiment in upper mould is T-shaped structure 14, and T-slot 13 is provided with connecting seat 3,
T-shaped structure 14 on die head is integrated with the mating connection dress of T-slot 13 on connecting seat 3；If being provided with bolt stem on connecting seat 3
Hole 12, is connected from T-slot 13 using bolt 11 through bolt hole 12 with die shank 2, die shank is filled with connecting seat and is integrated, referring to
Figure 16.
Numerical control bender is installed on equipped with demoulding block 10 in the present embodiment, demoulding block 10 is correspondence workpiece wagon box side plate
1 tail end arrangement, referring to Figure 13.
Claims (5)
1. the bending method of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production, is led to using special upper and lower mould
Cross three times and Bending Processing is carried out to plate, it is characterized in that：The special upper mould includes die head and die shank, and die shank leads to die head
Connecting seat connection is crossed, some threaded adjusting screw mandrels are installed on connecting seat, the front end of screw mandrel, which is equipped with roller mount, roller mount, pacifies
Equipped with some rollers；The special lower mould has die holder, and the upper surface of die holder is formed with bending " V " type groove；By above-mentioned upper and lower mould
It is installed on numerical control bender；Then Bending Processing is carried out as follows：
The first step：High-strength steel sheet is taken, according to product design measure；
Second step：The first bending part is determined according to wagon box side plate sheet-shaped design successively from the front to the back on plate, the second bending part,
3rd bending part；
3rd step：Plate is put between upper and lower mould, mould die head is directed at the bending part of plate first and carries out bending, appropriate mistake
Bending is measured, plate is departed from after upper and lower mould, returns to design bending angle；
4th step：It in same upper and lower mould, will be pushed away before plate, the 3rd bending part that mould die head is directed at plate is carried out bending,
Appropriateness excess bending, makes plate depart from after upper and lower mould, returns to design bending angle；
5th step：In same set of upper and lower mould, plate is retreated, mould die head is directed at the second bending part, and make the length of plate
The roller side arrangement of the top mould connecting seat of tail end, moves forward and backward roller suitable according to the coefficient of elasticity adjusting screw of plate
Position, so as to reach desirable flexural variable during plate bending, starts numerical control bender, carries out bending, and appropriate excessive bending, plate
The long tail end of material abuts in flexural deformation therewith on roller；Shaping plate is removed from upper and lower mould, the long tail end of plate is in elasticity
Effect is lower to recover straight, and plate leading portion because of three bending quadrangularlies, head foremost and the plate middle part of plate exist
It is bonded to each other under elastic reaction.
2. the bending method of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production according to claim 1, its
It is characterized in：The high-strength steel sheet tensile strength=1350MPa。
3. the bending method of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production according to claim 1, its
It is characterized in：" V " type groove angle on the lower mould is 30 °.
4. the bending method of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production according to claim 1, its
It is characterized in：In the upper mould, the top of die head is T-shaped structure, the T-shaped structure being provided with connecting seat on T-slot, die head and company
T-slot mating connection dress on joint chair is integrated；Some bolts hole are provided with connecting seat, are passed through using bolt from T-slot
Bolt hole is connected with die shank, die shank is filled with connecting seat and is integrated.
5. the bending method of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production according to claim 1, its
It is characterized in：Numerical control bender is installed on equipped with demoulding block, demoulding block is the tail end arrangement of correspondence workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371880.2A CN105817504B (en) | 2016-05-31 | 2016-05-31 | The bending method of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371880.2A CN105817504B (en) | 2016-05-31 | 2016-05-31 | The bending method of the U-shaped bucket dumper wagon box side plate shaped piece of high-strength steel sheet production |
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| Publication Number | Publication Date |
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| CN105817504A CN105817504A (en) | 2016-08-03 |
| CN105817504B true CN105817504B (en) | 2017-07-18 |
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| CN107999633A (en) * | 2018-01-16 | 2018-05-08 | 广州市天钻不锈钢厨房科技有限公司 | A kind of stainless steel cupboard plates depth U-shaped bending tool |
| CN118288601B (en) * | 2024-06-06 | 2024-08-06 | 山东小鸭精工机械有限公司 | Mould processing waste material processing apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH01162522A (en) * | 1987-12-18 | 1989-06-27 | Nakao Giken Kogyo:Kk | Forming method for corner round square cylindrical body |
| US5775162A (en) * | 1997-05-30 | 1998-07-07 | Ward; Raymond L. | Method and apparatus for forming sheet metal ducts |
| US7051567B2 (en) * | 2004-08-17 | 2006-05-30 | Tieh Chin Kung Metal Industry Co., Ltd. | Method for folding and curving of a metallic plate |
| CN102380525A (en) * | 2011-10-25 | 2012-03-21 | 佛山市正鑫隆电器实业有限公司 | Numerically controlled bending method of superlong and superhigh sheet metal part |
| CN204220792U (en) * | 2014-11-14 | 2015-03-25 | 苏州市冯氏钣金有限公司 | A kind of bender |
| CN104438489B (en) * | 2014-12-24 | 2016-07-06 | 安徽长江机床制造（集团）有限公司 | A kind of doorjamb and Bending Mould thereof |
| CN104815905B (en) * | 2015-04-20 | 2017-09-26 | 江苏大明精密钣金有限公司 | Close the Bending Mould and its technique of circular arc part |
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Denomination of invention: Production method of U-shaped steel plate with high strength for dump truck body Effective date of registration: 20201104 Granted publication date: 20170718 Pledgee: Huangshi City Development Investment Group Co., Ltd Pledgor: HUBEI TRI-RING METALFORMING EQUIPMENT Co.,Ltd. Registration number: Y2020980007568 |