CN101885015B - Specially-shaped annular molding die and molding method for metal bars - Google Patents
Specially-shaped annular molding die and molding method for metal bars Download PDFInfo
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- CN101885015B CN101885015B CN2010101549431A CN201010154943A CN101885015B CN 101885015 B CN101885015 B CN 101885015B CN 2010101549431 A CN2010101549431 A CN 2010101549431A CN 201010154943 A CN201010154943 A CN 201010154943A CN 101885015 B CN101885015 B CN 101885015B
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Abstract
The invention discloses a specially-shaped annular molding die and a molding method for metal bars. The molding die comprises a pre-pressing die and an annular molding die, wherein the pre-pressing die comprises an upper die part and a lower die part; the upper die part comprises a die handle and an upper die; the shape of the upper die is determined according to the shape of a product to be processed; the lower die part comprises a lower template and a lower die; the middle of the lower die has a groove structure; the left and right ends of the lower die are provided with emptying grooves respectively; the outer end part of the emptying groove at one end is enclosed and the emptying groove is used for limiting the metal bars during first emptying; the emptying groove at the other end is straight through; the emptying grooves at the left and right ends are symmetrically distributed; and the structure of the annular molding die is basically the same as that of the pre-pressing die. The metal bars are molded by pressing by using two sets of molds. Compared with the conventional manual forming way, the molding die and the molding method have the advantages of further improving the appearance quality of the product, realizing standardized manufacturing of the product, improving production efficiency, lowering production cost, along with simple and convenient technological operation.
Description
Technical field
The invention belongs to the forming materials technical field in the mechanical plastic working, relate to a kind of mould and manufacturing process that metal bar material is carried out the specially-shaped annular shaping.
Background technology
At the industrial machinery manufacture field, often need some integral body of processing to be the metallic element of closed circular, the parts of this shape use widely among the product of each industrial circle, the semicircle link that is adopted on the railway freight railway carriage for example, square safe suspension ring on the car brakeing beam or the like.These annular element can be circular-arc, rectangular shape, cone-shaped, changeable rib shape even wavy.
At present, domestic enterprise is when carrying out the specially-shaped annular shaping to metal bar material, generally the processing method of Cai Yonging is that it is bigger that this mode is influenced by human factor with the manual bending forming mode of metal bar material heating back employing instrument, the product precision does not often reach production engineering specifications, and productivity ratio is low.
Summary of the invention
The objective of the invention is for solving metal bar material specially-shaped annular shaping problem, to make it under the prerequisite of controlling cost, realize standardization, mass manufacturing, propose a kind of particular manufacturing craft and using method thereof in order to overcome the defective of prior art.
The present invention realizes by the following technical solutions.
A kind of particular manufacturing craft that metal bar material is carried out the specially-shaped annular shaping comprises precompressed mould and annular molding.
Wherein, the precompressed mould comprises part of the upper die and part of the lower die.The part of the upper die comprises die shank and patrix.The shape of described patrix determines according to shape of product to be processed, for example rectangle, rhombus or the like.
The part of the lower die comprises lower bolster and counterdie.Wherein, the middle part of counterdie is the groove shape, and the inner surface of groove shape part is determined according to shape of product to be processed.The two ends, the left and right sides of counterdie (being the two ends of groove) all have trough, and wherein the outer end of an end trough is a closed, are used for carrying out spacing to metal bar material when blowing first; Other end trough is a through state.The trough at two ends, the left and right sides is symmetrically distributed, and total quantity is one or more pairs of, and each is to placing a metal bar material in the trough of symmetry.Concrete logarithm can be selected according to producing needs.
Preferably, the part of the lower die also comprises limiting plate.Limiting plate is connected the wherein outer end of an end trough of counterdie by screw, and regulates the position of limiting plate by the degree of tightness of screw, is used for carrying out spacing to metal bar material when blowing first.
The structure of annular molding is formed with the precompressed mould structure basic identical.Difference is, the shape of the upper die and lower die groove of annular molding is identical with institute product processed shape, and the position of a pair of trough of penetralia of counterdie groove will be outside annular molding die shank diameter range; The outer end of counterdie trough one end need not to install limiting plate again, but with the outer end sealing, is undertaken spacing by counterdie itself.
In addition, the part of the upper die of annular molding (being die shank and patrix) also can adopt integral structure.
The internal diameter size of the external diameter of two kinds of upper moulds, counterdie groove all will require according to the dimensions of institute's processing parts to be determined.
Annexation between the above-mentioned building block is as follows:
For the precompressed mould, the lower end and the patrix of die shank are connected, and the upper end of die shank links to each other with the working portion of outside press.Lower bolster lower end and workbench are connected, and counterdie lower end and lower bolster are connected.
For annular molding, the lower end and the patrix of its die shank are connected, and the upper end of die shank links to each other with the working portion of outside press.The lower end and the lower bolster of counterdie are connected, and the lower end and the workbench of lower bolster are connected.
A kind ofly adopt above-mentioned mould that metal bar material is carried out the method that ring-type is shaped, may further comprise the steps:
At first, metal bar material is put into the trough of precompressed lower mould, and an end of metal bar material is pushed up to the spacing place of trough.Afterwards, externally under the drive of press, press to metal bar material in the groove of counterdie the part of the upper die, makes it form a U shape.
Then, lift the U shape workpiece after pre-compaction forming is taken out in the part of the upper die, place it in the trough of annular molding counterdie.During placement, U shape workpiece both sides bossing will be up, and an end of U shape workpiece will push up the spacing place to trough.Afterwards, the part of the upper die of annular molding is externally under the drive of press, U shape workpiece pressed in the groove of counterdie finally to be shaped.
Beneficial effect
The present invention contrasts prior art, has the following advantages:
By adopting two molds, earlier metal bar material is pressed into the U shape in the precompressed mould, and then U shape workpiece is carried out press forming in annular molding.Contrast existing hand finishing mode, technological operation is easy, has further improved the presentation quality of product, has realized the standardization manufacturing of product, and production efficiency has improved at least 5 times, greatly reduces production cost.
Description of drawings
Fig. 1 is the structural profile schematic diagram of precompressed mould described in the preferred embodiment for the present invention;
Fig. 2 is the vertical view of precompressed mould described in the preferred embodiment for the present invention;
Fig. 3 is the structural profile schematic diagram of annular molding described in the preferred embodiment for the present invention;
Fig. 4 is the vertical view of annular molding described in the preferred embodiment for the present invention.
Wherein, in the precompressed mould, 1-first screw, 2-first die shank, 3-first patrix, 4-first counterdie, 5-first lower bolster, 6-second screw, 7-stop screw, 8-limiting plate, 9-lower bolster;
In annular molding, 9-annular molding part of the upper die, 10-second counterdie, 11-second lower bolster, 12-the 3rd screw.
The specific embodiment
Below in conjunction with accompanying drawing preferred implementation of the present invention is described in further details.
A kind of particular manufacturing craft that metal bar material is carried out the specially-shaped annular shaping comprises precompressed mould and annular molding.
Wherein, the precompressed mould comprises part of the upper die and part of the lower die.The part of the upper die comprises first screw 1, first die shank 2 and first patrix 3.Described first patrix 3 be shaped as rectangle.
The part of the lower die comprises first counterdie 4, first lower bolster 5, second screw 6, stop screw 7, limiting plate 8 and lower bolster 9.
Wherein, the middle part of first counterdie 4 is the groove shape, and the inner surface of groove shape part is determined according to shape of product to be processed.The two ends, the left and right sides of first counterdie 4 (being the two ends of groove) all have trough, and wherein the outer end of an end trough is a closed, are used for carrying out spacing to metal bar material when blowing first; Other end trough is a through state.The trough at two ends, the left and right sides becomes symmetric design, and total quantity is one or more pairs of, and each is to placing a metal bar material in the trough of symmetry.In this specific embodiment, symmetrical trough is 5 pairs.
Annular molding comprises annular molding part of the upper die 9, second counterdie 10, second lower bolster 11 and the 3rd screw 12.
The two ends, the left and right sides of second counterdie 10 (being the two ends of groove) also have trough, and wherein the outer end of an end trough is a closed, are used for carrying out spacing to the workpiece behind pre-compaction forming when blowing first; Other end trough is a through state.The trough at two ends, the left and right sides also becomes symmetric design, and total quantity is one or more pairs of, and each is to placing the workpiece behind pre-compaction forming in the trough of symmetry.In this specific embodiment, symmetrical trough is 2 pairs.
The shape of the patrix 9 of described annular molding, the groove of second counterdie 10 is identical with institute product processed shape, and the position of a pair of trough of penetralia of second counterdie, 10 grooves will be outside annular molding die shank diameter range; The outer end of second counterdie, 10 troughs, one end is a closed, carries out spacing by counterdie itself to the workpiece behind pre-compaction forming.
The internal diameter size of the external diameter of two kinds of upper moulds, counterdie groove all will require according to the dimensions of institute's processing parts to be determined.
Annexation between the above-mentioned building block is as follows:
For the precompressed mould, the lower end of first die shank 2 and first patrix 3 are connected by first screw 1, and the upper end of first die shank 2 links to each other with the working portion of outside press.The lower end and the workbench of first lower bolster 5 are connected, and the lower end of first counterdie 4 and first lower bolster 5 are connected by second screw 6.Limiting plate 8 is connected the wherein outer end of an end trough of first counterdie 4 by stop screw 7, and regulates the position of limiting plate 8 by the degree of tightness of stop screw 7, is used for carrying out spacing to metal bar material when blowing first.
For annular molding, the die shank of annular molding and patrix adopt integral structure.The upper end of annular molding part of the upper die 9 links to each other with the working portion of outside press.
The lower end and the workbench of second lower bolster 11 are connected, and the lower end of second counterdie 10 and second lower bolster 11 are connected by the 3rd screw 12.
A kind ofly adopt above-mentioned mould that metal bar material is carried out the method that ring-type is shaped, may further comprise the steps:
At first, metal bar material is put into the trough of precompressed mould first counterdie 4, and an end of metal bar material is pushed up to limiting plate 8 places.Afterwards, externally under the drive of press, press to metal bar material in the groove of first counterdie 4 part of the upper die, makes it form a U shape.
Then, lift the part of the upper die, the U shape workpiece behind the taking-up pre-compaction forming places it in the trough of second counterdie 10 in the annular molding.During placement, U shape workpiece both sides bossing will be up, and an end of U shape workpiece will push up to the spacing place of second counterdie, 10 troughs.Afterwards, the part of the upper die of annular molding is externally under the drive of press, U shape workpiece pressed in the groove of second counterdie 10 finally to be shaped.
Claims (4)
1. a metal bar material specially-shaped annular shaping dies is characterized in that, comprises precompressed mould and annular molding;
Wherein, the precompressed mould comprises part of the upper die and part of the lower die; The part of the upper die comprises die shank and patrix, and the shape of described patrix is determined according to shape of product to be processed;
The part of the lower die comprises lower bolster and counterdie; Wherein, the middle part of counterdie is the groove shape, and the inner surface of groove shape part is determined according to shape of product to be processed; The two ends, the left and right sides of counterdie all have trough, and wherein the outer end of an end trough is a closed, are used for carrying out spacing to metal bar material when blowing first; Other end trough is a through state; The trough at two ends, the left and right sides is symmetrically distributed, and total quantity is one or more pairs of, and each is to placing a metal bar material in the trough of symmetry, and concrete logarithm is selected according to producing needs;
The structure of described annular molding is formed with the precompressed mould structure basic identical, difference is, the shape of the upper die and lower die groove of annular molding is identical with institute product processed shape, and the position of a pair of trough of penetralia of counterdie groove will be outside annular molding die shank diameter range; The outer end of counterdie trough one end need not to install limiting plate again, but with the outer end sealing, is undertaken spacing by counterdie itself;
The internal diameter size of the external diameter of two kinds of upper moulds, counterdie groove all will require according to the dimensions of institute's processing parts to be determined;
Annexation between the above-mentioned building block is as follows:
For the precompressed mould, the lower end and the patrix of die shank are connected, and the upper end of die shank links to each other with the working portion of outside press; Lower bolster lower end and workbench are connected, and counterdie lower end and lower bolster are connected;
For annular molding, the lower end and the patrix of its die shank are connected, and the upper end of die shank links to each other with the working portion of outside press; The lower end and the lower bolster of counterdie are connected, and the lower end and the workbench of lower bolster are connected.
2. a kind of metal bar material specially-shaped annular shaping dies as claimed in claim 1 is characterized in that the part of the lower die of precompressed mould comprises limiting plate;
Limiting plate is connected the wherein outer end of an end trough of counterdie by screw, and regulates the position of limiting plate by the degree of tightness of screw, is used for carrying out spacing to metal bar material when blowing first.
3. a kind of metal bar material specially-shaped annular shaping dies as claimed in claim 1 is characterized in that, integral structure is adopted in the part of the upper die of annular molding.
4. one kind is adopted the described mould of claim 1 that metal bar material is carried out the method that ring-type is shaped, and it is characterized in that, may further comprise the steps:
At first, metal bar material is put into the trough of precompressed lower mould, and an end of metal bar material is pushed up to the spacing place of trough; Afterwards, externally under the drive of press, press to metal bar material in the groove of counterdie the part of the upper die, makes it form a U shape;
Then, lift the U shape workpiece after pre-compaction forming is taken out in the part of the upper die, place it in the trough of annular molding counterdie; During placement, U shape workpiece both sides bossing will be up, and an end of U shape workpiece will push up the spacing place to trough; Afterwards, the part of the upper die of annular molding is externally under the drive of press, U shape workpiece pressed in the groove of counterdie finally to be shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101549431A CN101885015B (en) | 2010-04-26 | 2010-04-26 | Specially-shaped annular molding die and molding method for metal bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101549431A CN101885015B (en) | 2010-04-26 | 2010-04-26 | Specially-shaped annular molding die and molding method for metal bars |
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| Publication Number | Publication Date |
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| CN101885015A CN101885015A (en) | 2010-11-17 |
| CN101885015B true CN101885015B (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101549431A Expired - Fee Related CN101885015B (en) | 2010-04-26 | 2010-04-26 | Specially-shaped annular molding die and molding method for metal bars |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103722081A (en) * | 2013-12-14 | 2014-04-16 | 苏州博汇精密机械有限公司 | Die for U-shaped parts |
| CN109909378A (en) * | 2019-03-21 | 2019-06-21 | 安徽省矿业机电装备有限责任公司 | A method of for batch micro operations snap ring |
| CN109794550A (en) * | 2019-03-21 | 2019-05-24 | 安徽省矿业机电装备有限责任公司 | Manufacture system for snap ring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3813645A (en) * | 1972-02-11 | 1974-05-28 | Essex International Inc | Spark plug terminal |
| US5528921A (en) * | 1994-05-03 | 1996-06-25 | Herman; Fred L. | Tube bending appartus |
| RU2191083C2 (en) * | 2000-01-06 | 2002-10-20 | Открытое акционерное общество "ГАЗ" | Die for bending transportation grid branch |
| WO2008102477A1 (en) * | 2007-02-21 | 2008-08-28 | Nippon Steel Corporation | Apparatus and method for press-bending tube material |
| CN201366458Y (en) * | 2008-12-09 | 2009-12-23 | 中国船舶重工集团公司第七二二研究所 | U-shaped handle molding mechanism |
| CN101579710B (en) * | 2009-06-23 | 2010-12-01 | 重庆大学 | Bending forming method of railway van coupler yoke forge piece |
| CN201644576U (en) * | 2010-04-26 | 2010-11-24 | 晋西工业集团有限责任公司 | Special-shaped annular forming die for metal bars |
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