CN110038963B - Forming method and forming die for Chinese character ri tube - Google Patents
Forming method and forming die for Chinese character ri tube Download PDFInfo
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- CN110038963B CN110038963B CN201910328804.7A CN201910328804A CN110038963B CN 110038963 B CN110038963 B CN 110038963B CN 201910328804 A CN201910328804 A CN 201910328804A CN 110038963 B CN110038963 B CN 110038963B
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides a forming method and a forming die of a Chinese character ri, comprising the steps of S1, bending two ends of a plate material for 90 degrees in opposite directions; s2, after the sheet material is sequentially bent upwards, horizontally and downwards from the bending starting point according to the shape of the die, the bent part at the end part of the sheet material is contacted with the upper surface of the unbent sheet material, wherein the sheet material is bent downwards vertically to form an inner rib; s3, welding the bent part of the end part of the plate material and the upper surface of the contacted unbent plate material; s4, placing the die on the unbent sheet material, enabling the die to be tightly attached to the inner ribs, and sequentially vertically bending the sheet material upwards and horizontally according to the shape of the die, wherein the bent part at the end part of the sheet material is in contact with the inner ribs; s5, adjusting the position of the plate, and welding the bent part of the end part of the plate with the inner rib to form a Chinese character ri-shaped tube; and S6, removing the mold. The method has the advantages of simple steps, simple die structure, low cost, and high strength and high precision of the processed pipe.
Description
Technical Field
The invention belongs to the technical field of forming of a Chinese character 'ri' tube, and particularly relates to a forming method and a forming die of the Chinese character 'ri' tube.
Background
The Y-shaped pipe is widely applied to industries such as buildings, machinery and the like. At present, the forming method of the product mainly comprises a multi-plate welding forming method and a continuous roller forming method. According to the existing multi-plate welding forming method, multiple welding is usually required, the welding sequence is very important due to more welding times, and the welding sequence is required to be designed for preventing the shape distortion of the pipe fitting, so that the welding procedure is more complicated, more welding seams are formed by welding the multiple plates, and the strength of the pipe fitting manufactured by the method is lower; in the continuous roll forming method, the sheet is bent and deformed by passing through a roller one by one and is welded, but a large number of rolling dies are required, and the manufacturing cost is high.
Therefore, a method for forming the Y-shaped tube, which has the advantages of high strength, high precision, low cost, simple mold structure and simple method steps, needs to be designed.
Disclosure of Invention
In view of the above, the present invention is directed to a method and a mold for forming a "ri" shaped tube, which have the advantages of simple steps, simple mold structure, low cost, and high strength and high precision of the manufactured "ri" shaped tube.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a forming method of a Chinese character 'ri' tube comprises the following steps:
s1, bending two ends of the horizontally placed plate material for 90 degrees in opposite directions;
s2, placing a die at the bending starting point of the plate designed by the drawing, and after the plate is sequentially vertically bent upwards, horizontally bent and vertically bent downwards from the bending starting point according to the shape of the die, contacting the bent part at the end part of the plate with the upper surface of the plate which is not bent, wherein the plate is vertically bent downwards to form an inner rib;
s3, adjusting the direction of the plate, and welding the bent part of the end part of the bent plate in the S2 with the upper surface of the contacted unbent plate;
s4, placing the die on the unbent sheet material, enabling the die to be tightly attached to the inner ribs, and sequentially vertically bending the sheet material upwards and horizontally according to the shape of the die, wherein the bent part at the end part of the sheet material is in contact with the inner ribs;
s5, adjusting the position of the plate, and welding the bent part of the end part of the bent plate in the S4 and the inner rib tightly attached to the die to form a Chinese character ri-shaped tube;
and S6, removing the mold.
Further, in S2, the distance from the bending start point to the end of the sheet bent downward by 90 ° is related to the length of the sheet bent in S2 and the thickness of the sheet.
Further, in S1, the two ends of the horizontally placed sheet are bent by 90 ° in opposite directions at a distance of 5mm from the respective edges.
Further, in the step S1, the left end of the sheet material is vertically bent upward by 90 °, and the right end is vertically bent downward by 90 °.
Further, in S2, after the sheet material is sequentially bent vertically upward, horizontally, and vertically downward from the bending start point, the bent sheet material and the horizontal non-bent sheet material form a "square" structure.
Further, in the step S4, after the sheet material is sequentially bent vertically and upwardly and horizontally, the bent sheet material, the inner ribs and the non-bent sheet material form another structure shaped like a Chinese character kou.
Further, in S6, the adjusting bolt on the mold is rotated to adjust the mold height, and the mold is removed.
The invention also provides a forming die of the Chinese character 'ri' tube, which comprises a die base, two die adjusting blocks and two adjusting bolts, wherein the two die adjusting blocks are symmetrically arranged on the upper surface of the die base to form a cuboid-like structure, one adjusting bolt is used for adjusting the movement of one die adjusting block, the two die adjusting blocks are in an equi-large wedge-shaped structure, the upper surface of the die base is symmetrically provided with inclined planes matched with the two wedge-shaped die adjusting blocks, the two adjusting bolts correspondingly penetrate through the U-shaped through grooves on the two sides of the die base and are connected with threaded holes of the die adjusting blocks through threaded parts, and the two adjusting bolts are limited in the U-shaped through grooves on the two sides of the die base.
Furthermore, two limiting plates are arranged on the adjusting bolt in parallel and clamped at two ends of the U-shaped through groove.
Furthermore, the limiting plate and the adjusting bolt are integrally formed and are circular.
Compared with the prior art, the forming method of the Chinese character 'ri' tube has the following advantages: compared with the existing multi-plate welding forming process, the method for forming the rectangular tube has better shape precision and higher strength, has simple process steps, and greatly improves the production efficiency; compared with a continuous roller type forming process, the method has the advantages of simple mold structure and low cost.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic cross-sectional view of a rectangular pipe to be processed;
FIG. 2 is a schematic view of the process of forming a Y-shaped pipe according to the present invention after completion of S1;
FIG. 3 is a schematic view of the completed Japanese-type pipe of S2 and S3, which is processed by the present invention;
FIG. 4 is a schematic view of the completion of S4 and S5 after processing by the present invention of a "Ri" -shaped tube;
fig. 5 is a schematic structural view of a forming die used for forming the japanese-character tube of the present invention.
Description of reference numerals:
1-a mould adjusting block, 2-a mould base, 3-an adjusting bolt and 4-a limiting plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1-4, the "ri" pipe is formed by using a forming mold, the forming mold includes a mold base 2, two mold adjusting blocks 1 and two adjusting bolts 3, the two mold adjusting blocks 1 are symmetrically arranged on the upper surface of the mold base 2 to form a similar rectangular parallelepiped structure, one adjusting bolt 3 adjusts the movement of one mold adjusting block 1, the two mold adjusting blocks 1 are in an equilarge wedge structure, the upper surface of the mold base 2 is an inclined surface symmetrically arranged and matched with the two wedge-shaped mold adjusting blocks 1, the two adjusting bolts 3 correspondingly penetrate through U-shaped through grooves on both sides of the mold base 2 and are connected with threaded holes of the mold adjusting blocks 1 through threaded parts, the two adjusting bolts 3 are limited in the U-shaped through grooves on both sides of the mold base 2, two limiting plates 4 are arranged in parallel on the adjusting bolts 3, the two limiting plates 4 are clamped at two ends of the U-shaped through groove, and the limiting plates 4 and the adjusting bolts 3 are integrally formed and are circular. The stopper plate 4 restricts the movement of the adjuster bolt 3 in the direction toward or away from the wedge-shaped die adjuster 1, but does not restrict the rotation of the adjuster bolt 3 and the upward and downward movement of the adjuster bolt 3.
The specific forming method of the rectangular tube with the specification of 110 (long side) × 34mm (short side) given below comprises the following steps:
s1, bending the left end of the horizontally placed plate upwards at a position 5mm away from the edge of the plate at an angle of 90 degrees with the horizontal direction, keeping the edge a horizontal, and bending the right end of the plate downwards at a position 5mm away from the edge of the plate at an angle of 90 degrees with the horizontal direction;
s2, placing a die at a position which is about 123mm away from the edge (bent downwards) of the right end of the plate (the distance from the bending starting point to the end part of the plate bent downwards by 90 degrees is related to the length of the plate bent in S2 and the thickness of the plate), bending the plate upwards by 90 degrees along the die to form a d edge, bending the d edge leftwards by 90 degrees to form a b edge, bending the plate downwards by 90 degrees along the die to form a c edge, namely an inner rib, wherein the small plane bent at the edge of the right end is contacted with the a edge, the a edge is kept horizontal, and the a edge, the d edge, the b edge and the c edge form a square structure;
s3, welding the small plane bent by the plate edge in the S2 and the a side contacted with the small plane by a laser welding machine;
s4, placing the die on the edge a of the plate material and tightly attaching the die to the edge c, bending the plate material upwards by 90 degrees along the die until the plate material is tightly attached to the die to form the edge e, then bending the plate material rightwards by 90 degrees until the plate material is tightly attached to the die to form the edge f, and contacting the small plane formed by bending the edge of the left end with the edge c; the f side of the e side, the c side and the a side form another square-shaped structure;
s5, welding the small plane bent by the plate edge in the S4 and the c edge contacted with the small plane by a laser welding machine;
s6, rotating the adjusting bolt 3 on the die to enable the die adjusting block 1 to move, wherein the die adjusting block 1 is of a wedge-shaped structure, the moving process is equivalent to that the die adjusting block moves downwards along the die base 2, the overall height of the die is reduced, and when the die moves by about 1mm, the die is removed to obtain the required T-shaped pipe fitting.
In addition, for the forming of the rectangular pipes with the same specification, if the left end is bent downwards by 90 degrees and the right end is bent upwards by 90 degrees, the forming can be realized by only arranging the die at a position which is about 123mm away from the edge of the left end of the plate (bent downwards).
The method can be used for forming the Y-shaped pipes with different specifications, and has wide application range and simple forming method.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A forming method of a Chinese character Ri-shaped tube is characterized in that: the method comprises the following steps:
s1, bending two ends of the horizontally placed plate material for 90 degrees in opposite directions;
s2, placing a die at the bending starting point of the plate designed by the drawing, and after the plate is sequentially vertically bent upwards, horizontally bent and vertically bent downwards from the bending starting point according to the shape of the die, contacting the bent part at the end part of the plate with the upper surface of the plate which is not bent, wherein the plate is vertically bent downwards to form an inner rib;
s3, adjusting the direction of the plate, and welding the bent part of the end part of the bent plate in the S2 with the upper surface of the contacted unbent plate;
s4, placing the die on the unbent sheet material, enabling the die to be tightly attached to the inner ribs, and sequentially vertically bending the sheet material upwards and horizontally according to the shape of the die, wherein the bent part at the end part of the sheet material is in contact with the inner ribs;
s5, adjusting the position of the plate, and welding the bent part of the end part of the bent plate in the S4 and the inner rib tightly attached to the die to form a Chinese character ri-shaped tube;
and S6, removing the mold.
2. The method of forming a japanese-character tube according to claim 1, wherein: in S2, the distance from the bending start point to the end of the sheet bent downward by 90 ° is related to the length of the sheet bent in S2 and the thickness of the sheet.
3. The method of forming a japanese-character tube according to claim 1, wherein: in S1, the two ends of the horizontally placed sheet material are bent by 90 ° in opposite directions at a distance of 5mm from the respective edges.
4. The method of forming a japanese-character tube according to claim 3, wherein: in the step S1, the left end of the plate material is vertically bent upwards by 90 degrees, and the right end of the plate material is vertically bent downwards by 90 degrees.
5. The method of forming a japanese-character tube according to claim 1, wherein: in the step S2, after the sheet material is sequentially bent vertically upward, horizontally and vertically downward from the bending start point, the bent sheet material and the horizontal non-bent sheet material form a square structure.
6. The method of forming a japanese-character tube according to claim 5, wherein: in the S4, after the plate is sequentially vertically bent upwards and horizontally bent, the bent plate, the inner ribs and the unbent plate form another square-shaped structure.
7. The method of forming a japanese-character tube according to claim 1, wherein: in S6, the adjusting bolt on the mold is rotated to adjust the height of the mold, and the mold is removed.
8. The method of forming a japanese-character tube according to claim 1, wherein: the mould includes mould base, two mould adjusting blocks and two adjusting bolt, two mould adjusting block symmetry set up the upper surface at the mould base and form type cuboid form structure, the removal of a mould adjusting block is adjusted to an adjusting bolt, two mould adjusting blocks are big wedge structure such as, mould base upper surface for the symmetry set up with two wedge mould adjusting block complex inclined planes, two adjusting bolt correspond the U type that passes mould base both sides and lead to the groove and be connected through the screw hole of screw thread portion with the mould adjusting block, and two adjusting bolt are by spacing logical inslot in the U type of mould base both sides.
9. The method of forming a japanese-character tube according to claim 8, wherein: two limiting plates are arranged on the adjusting bolt in parallel and clamped at two ends of the U-shaped through groove.
10. The method of forming a japanese-character tube according to claim 9, wherein: the limiting plate and the adjusting bolt are integrally formed and are circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910328804.7A CN110038963B (en) | 2019-04-23 | 2019-04-23 | Forming method and forming die for Chinese character ri tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910328804.7A CN110038963B (en) | 2019-04-23 | 2019-04-23 | Forming method and forming die for Chinese character ri tube |
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| Publication Number | Publication Date |
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| CN110038963A CN110038963A (en) | 2019-07-23 |
| CN110038963B true CN110038963B (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910328804.7A Active CN110038963B (en) | 2019-04-23 | 2019-04-23 | Forming method and forming die for Chinese character ri tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113135158A (en) * | 2020-01-20 | 2021-07-20 | 长城汽车股份有限公司 | Front anti-collision beam and forming process thereof |
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| CN202290908U (en) * | 2011-10-27 | 2012-07-04 | 江苏润泰胶业有限公司 | Hollow aluminum strip bending system |
| CN102699192A (en) * | 2012-05-29 | 2012-10-03 | 苏州旭创精密模具有限公司 | Contact spring piece die |
| CN204517541U (en) * | 2015-04-29 | 2015-07-29 | 南京胜捷电机制造有限公司 | A kind of support and the progressive die for processing this support |
| CN105215080A (en) * | 2015-06-03 | 2016-01-06 | 豫新汽车空调股份有限公司 | A kind of Type B flat tube moulding process and mould thereof |
| CN205160988U (en) * | 2015-10-22 | 2016-04-13 | 上海乐通通信设备（集团）股份有限公司 | Outdoor rack waterproof construction of whole welding formula |
| CN109093895A (en) * | 2018-07-27 | 2018-12-28 | 浙江伟星实业发展股份有限公司 | A kind of mould bases and its mold core regulating device |
-
2019
- 2019-04-23 CN CN201910328804.7A patent/CN110038963B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202290908U (en) * | 2011-10-27 | 2012-07-04 | 江苏润泰胶业有限公司 | Hollow aluminum strip bending system |
| CN102699192A (en) * | 2012-05-29 | 2012-10-03 | 苏州旭创精密模具有限公司 | Contact spring piece die |
| CN204517541U (en) * | 2015-04-29 | 2015-07-29 | 南京胜捷电机制造有限公司 | A kind of support and the progressive die for processing this support |
| CN105215080A (en) * | 2015-06-03 | 2016-01-06 | 豫新汽车空调股份有限公司 | A kind of Type B flat tube moulding process and mould thereof |
| CN205160988U (en) * | 2015-10-22 | 2016-04-13 | 上海乐通通信设备（集团）股份有限公司 | Outdoor rack waterproof construction of whole welding formula |
| CN109093895A (en) * | 2018-07-27 | 2018-12-28 | 浙江伟星实业发展股份有限公司 | A kind of mould bases and its mold core regulating device |
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| CN110038963A (en) | 2019-07-23 |
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Effective date of registration: 20201016 Address after: 150001 Harbin, Nangang, West District, large straight street, No. 92 Patentee after: HARBIN INSTITUTE OF TECHNOLOGY Patentee after: Jiangsu Haokun Auto Parts Co.,Ltd. Address before: 150001 Harbin, Nangang, West District, large straight street, No. 92 Patentee before: HARBIN INSTITUTE OF TECHNOLOGY Patentee before: Harbin Duowei Auto Parts Co.,Ltd. |